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Патент USA US2506444

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May 2, 1950
-
P. F. CARLSON
UNIVERSALLY ADJUSTABLE TOOL MOUNT REQUIRING
2,506,440
SINGLE OPERATING HANDLE
Filed Sept. 21, 1948
3 Sheets-Sheet 1
INVENTOR.
Paul F.Curlson.
ATTORNEY
May 2, 1950
P F. CARLSON
UNIVERSALLY ADJUSTABLE TOOL MOUNT REQUIRING
2,506,440
SINGLE OPERATING HANDLE
3 Sheets-Sheet 2
Filed Sept. 21, 1948
95
92
88
8376V
Fig.4
52
62
68
66 65
51
JNVENTOR.
Poul F.0urlson.
BY %
67“
ATTORNEY
;
May 2, 1950 _
P F CARLSON
UNIVERSAELY ADJUSTABLE TOOL MOUNT REQUIRING
2,50§,440
SINGLE OPERATING HANDLE
Filed Sept. 21, 1948
: Sheets-Shéet 3
Fig.5.
69
67
95
59
68
75 ' 78 84
62 54 52
6 64
65
53
56
74
73
83 7|
IN VEN TOR.
‘
Poul_ F.Corlson.
‘311%
25. 6E; ;
ATTORNEY
2,506,440
Patented May 2, 1950
UNITED STATES PATENT OFFICE
UNIVERSALLY ADJUSTABLE 'TOOL MOUNT
REQUIRING SINGLE OPERATING HANDLE
Paul Ecarlson, Madison, Pa.
Application September 21, 1948, Serial No. 50,330
11 Claims.
(Cl. 81-41)
2
1
erated clamping means with the cam in its
My invention relates to a universal position
ing vise that is adapted for mounting and ?rmly
holding any object within its capacity in any de
sired location and angular position that may be
necessary in order to work conveniently on the
object, and at the same time enabling the object
to be quickly adjusted from one position to an
other and ?rmly held in the adjusted position.
An object of the invention is to provide a
supporting structure for such vise for holding the
vise ?rmly in any desired position, and, with
out dismounting the vise structure, permitting
quickly adjusting it to any other desired posi
tion and ?rmly clamping it in such position.
1 ~ A further object of the invention is the pro
clamping position.
'
1
Referring tothe drawing and particularly to
Figs. 1 and 2 thereof, a supporting base or bar I
is provided which serves as a supporting member
for the entire structure by means of which the
universally positioned vise of my invention may
be supported in a working position in any con
venient manner, such as in the jaws of a regular
10 bench vise. A bore 2 is provided through the
upper end of the bar I for receiving a drawbar
or shaft 3 having a screw threaded end 4 extend
ing through the bore 2 and provided with a
shoulder 5 for limiting the movement of the
15 drawbar 3 toward a surf-ace 6 of the bar I. .A
vision of a supporting structure for such vise
including a series of members between the sup
porting base and the vise each extending at
steel nut 1 is provided with a screw threaded
right angles to the member supporting it and
shoulder or end portion 9 that engages a sur
bore 8 for receiving the screw threaded end 4 of
the shaft 3. The nut ‘I is provided with a
movable about an axis at right angles to the 20 face H! of the supporting bar I. An operating
handle or lever I l is provided extending through
axis of its supporting member, together with
an opening in the nut 1 for tightening or loosen
clamping means between each successive mem
ing the nut 1 on the shaft 3.
ber in the series and the member supporting it,
A clamping sleeve I2 is provided having a bore
together with a. single controlling means for
simultaneously tightening or loosening the sev 25 l3 for receiving an enlarged cylindrical outer
end [4 of the drawbar shaft 3. The inner end
eral clamping means.
of the sleeve l2 extends beyond the shoulder 5
In accordance with the illustrated ,embodi
of the drawbar shaft 3 so as to engage the sur
ments of the invention, a vise is mounted on a
face 6 of they supporting bar l?before the shoul
. structure including three shafts connected in
"series, each extending at right angles to the
member supporting itso that the vise is adapted
30 der 5 engages that surface when the drawbar
shaft 3 and the clamping sleeve l2 are moved
together toward the left, as viewed in Figs. 1
and 2. A bore I6 is provided through the oppo
site sides of the clamping sleeve l2. When-the
from the following description of certain pre 35 device is‘ assembled, the bore l?and a bore ‘l5
that extends through the enlarged outer end of
ferred embodiments of the invention, reference
to‘ move in three planes, each at right angles to
the axis of the associated supporting shaft.
Other objects of the invention will be apparent
being had to the accompanying drawing, in
which:
the drawbar shaft 3 are in alignment.
,
_
A split clamping shaft 2! is provided and com
prises a lower cylindrical portion 22 of such di
Figure 1 is a. perspective view of a universal
positioning vise constructed in accordance with 40 ameter as to conveniently slip through the bores
I5 and 16 when these bores are in alignment.
one embodiment of my invention,
An upper portion 23 ofwthe shaft 2| is enlarged
Fig. 2 is a view showing the parts of the vise
and provided with a reamed bore 24 there
illustrated in Fig. 1 in disassembled relation to
through. A bore 25 of smaller diameter than
more clearly illustrate the construction of the
separate parts,
45 the bore 24 is provided through the lower end
of the shaft 2| and a slot 26 extends between
the bores 24 and 25, thus permitting the two side
portions on the opposite sides of the slot to be
Fig. 3 is an elevational view of a universal
positioning vise constructed in accordance with
another embodiment of the invention,
'
squeezed toward each other to reduce slightlythe
Fig. 4 is a view showing the supporting parts
of the structure disassembled and in perspective, 50 size of the bore 24. A groove 21 is provided at
Fig. 5 is a view in vertical section showing the 1; the lower end of the shaft 2| for receiving a
spring retaining ring 28 for holding the shaft 21
vise supporting parts shown in Fig. 3,
Fig. 6 is an elevational view of the cam oper
in place on the drawbar 3.
ating clamp means in released position, and
~ Fig. 7 is an elevational view of the cam op
v
55
v
~
at 32, includes a
jaw 33‘mounted on a rod 3| which. extends
‘ ' The vise,>indicated generally
52,606,440
3
4
through the bore 24 in the split clamp shaft 2|.
A jaw 34 is provided having a bore 35 there
through for permitting the screw threaded end
36 of the rod 3| to extend through the jaw and
several shafts of the vise supporting structure
to be received in a screw threaded bore 31 of a
nut 38 for moving the jaws 33 and 34 relative to
bench vise, but any other convenient form of sup
against rotation. The supporting structure com
prises a supporting base 5! which is shown in a
form that may be held in the laws of a regular
porting base may be used, such as a base mounted
each other. A lever 39 is provided for operating
directly on a bench. The upper end of the base
the nut 38. A heel screw 4| is provided on the
5| terminates in Ia circular head'porticn 52 having
abore 53 extending therethrough.
lower portion'of the jaw 34 ‘and is adapted to
extend through a bore 32 in the lower portion of 10
the jaw 33 and to space the jaw 33 with respect
to the jaw 33 by the settingiof-a nut 33 that is
screw threadedly positioned upon the heel :screw
A drawbar shaft 54 is provided having a por
’'-tion 55 that is relatively smaller in diameter and,
a portion 56 that is relatively larger in diameter.
The endof the smaller portion is provided with
screw threads 5? for engaging internal screw
When it is desired to position the vise ‘32in -15 ‘threads 53 in the opening of an adjusting nut 59.
When the structure is assembled, the screw
any desired position, the steel -.nut 7!
loosened
threaded end of th'e drawbar shaft 54 extends
on the end of the screw threaded drawbar shaft
loosely through the bore 53 in the circular head
3 and the Vise 32 is then free to move to any posi
portion 52 of the supporting base member 5| and
tion. When the steel wit 1 is loosened, the draw
isb‘ar rshaft 13 is "free to move a about its horizontal 20 also'looselythrough a b01385 if in a cradle 32. The
cradle '62 is provided on one side with a ?atsur
axis, the cylindrical split clamp-shaft 2|"is'free
face that engages the adjacent fiat surface-of
-:to move‘ about its vertical axisand the vise sup
'the'head portion ‘52 of the-supportingI-base mem
ber, and is provided on its "opposite side with :a
in‘three planes about any one ‘or 1 more :of the 25 concave cylindrical curved surface>133 for receiv
ing curved portions 540i a-locking cam indicated
rthreeiaxes of the three. shafts sup'porting'it. .The
generally at‘t?. The curvedsurface 63 and the
-vise 32 .may, therefore, be moved to. any desired
curved portions 34 of the locking cam'are circular
v‘angular positionso ‘that-:t'he surface of the. object
aor'cylindrical in shape'about the center of move
ih'eld'between thejaws of the‘vise may be‘ inclined
fat vany desired angle, .moved upside down, re 30 -ment of‘the .cam'so that the surface ‘of the cam
maymove smoothly along the curved1surface?3.
versed, or otherwise adjusted to any convenient
porting shaft 3| is free to move‘ about its hori
‘fzontal-axis, thus allowing. the vise 32 to be rotated
ipos'itionTto be worked upon.
zWhen adjusted to the desired position, the steel
.:nut .'| is turned to tighten'the» several connections
lbetween thesupporting members whichincludes
"ithe connectionbetween the base .bar i and 'the
fdrawbar shaft .3, the connection vbetween the
[drawbar shaft 3 and the» split Jc‘lamp shaft-2|,
A portionrtii ofythe surface rofxthecam provides
a lowt-area’relatlvely neari-the'center of movement
of' the cam. A portion‘?B of'fthesurface .of the
cam provides a‘higharea of Ethe cam that is'more
remote from the centerrof the'movement of'the
:cam than‘is‘thelow area. .As vbest shown in'iFig.
4,, theilocking cam member .ccmprisesza' bifurcated
:an'd'theconnection between the clamp shaft 2|
sand‘ the supporting shaft-‘3|. When the nut l is
‘tightened, the threaded-end drof the drawbar
shaft 3 is drawn withinthe screw‘ threaded bore
fin-the steelvnut ‘|. This movement of the steel
‘bracket?'i carrying 'twocams E5 spaced apart
inuticausesthe outer side of the bore :15 in the
includes a clamping sleeve ‘ii having a longi
?end of the shaft 3~~to be forced tightly against
~.the1¢split<clamp ‘shaft? 2| vextending through’ the
'-'bores 15 andal? in the’shaft 3 and the‘clampin‘g
tudinal bore ‘i2 for ?tting over"the 'large'end'z??
of‘the drawbar ‘shaft-'53 and-is also provided with
two transverse bores ‘13 onopposite sides thereof
registering with abore “hi 'in the drawbar shaft
56. A split clamping shaft‘ l5 is provided having
sleeve |2, respectivelyfthusforcing the clamping
‘sleeve-12 vtoward the left, as viewed in Figs. 1
Tana-2 to‘tightly engage 'the‘rsurface 6 or" the sup
porting bar | and to bring the-end‘i9 of the nut‘!
v‘tig'l’itlyagainst-the surface |3 of the bar |, thus
"f‘clamping the bar | between theouter-‘end 36f
and adaptedto'be positioned on opposite sides
of'the drawbar shaft 54. An operating lever 69
.is provided for operating the locking cams 65.
vThe supporting structure shown in Figs. 3 and .Il
’ ‘a ‘relatively smaller cylindrical end 13 and a
‘larger cylindrical end vTl. The lower end extends
throughand islsupported in the bores '|3~and'14.
‘A bore ‘53 is provided transversely through'the
*the‘steel nut] and the innerend- I ‘l-“of' the clamp
larger'end of the shaft 15 and a bore 19 is‘ pro
f-ing‘sleeve >|2. This clamping Aaction<prevents
vided‘transvers'ely through the-lower end vof‘the
movement of‘ the drawbar shaft3l-31-about its axis.
shaft-‘E5. These two bores are connected'by ‘a-slot
This movement of i the drawbar shaft 7-3 also
8| extending between them. A groove 82 is pro‘
squeezes the split clampshaft 2| to prevent it
vided about the lower end‘of'the shaft -*'|5 ‘for
ifrom moving about its axis within the bores 5|5
receiving ‘a retaining ring sermon the-shaft 15
xand'lli. This clamping *or squeezing action of 60 in position when-assembled. The bore-‘l8 in the
vithe- split clamp shaft 2| ‘also, in effect, reduces
~shaft 25 receives the end of-‘a supporting shaft“.
"the'size of the bore-24'so'as to clamp tightly about
.A'pair of cooperating jaws 8'5 andf86 is'pro
ithei'supporting shaft 3| and prevent this shaft
vided,‘ the jaw 85'being supported on the shaft
“from rotating about its axis. '2 Thus all three 'ad
84.‘ The other jaw 86 is supported by means of
.lju‘stable members, the idrawbar shaft 3, the-split
two slide rods 31 and 88’fastened to vthe jaw1>86
‘clamp ~shaft2l, and'the supporting shaft ‘3| are
and extendingthrough bores 89 and 9|, respec
'"cla'mped-against rotation about their respective
tively, in the jaw 85. A screw threaded shaft 92
taxes 1 by ‘a single ‘operating 'member, namely the
is attached to‘ the jaw.85 and cooperates with a
dsteel-nutt
'
screwthreaded bore 93 in the'shaft‘tll'to move
‘ Referring to the embodimentiof the'invention 70
the jaw 85 relative-to the jawl85._ .An operating
illustrated in Figs. 3, 4, 5, 6 and ‘Land referring
head 3M- is provided on the outer end .ofthe shaft
particularly to Figs. 13 =and'i4, the supporting
92 and‘an-operating lever l?r5rextends through a
'l'astructure' in its essential characteristics is similar
bore in'the‘head-Mv for rotating the head: and
I-Eto-Tthe embodiment shown in Figs; 1 and 2, except
for the means for clamping and unclamping the 75 shaft 92.
2,506,440
5
6
.
1 The operation of the locking cam will be clearly
sized bore extending transversely. therethrough,‘,
understood by reference to Figs. 5, 6 and 7. ,With
a supporting shaft havingone end positioned
the cam lever 69 and cam 65 in the position illus
through the variable sized bore, and .a .tool
mounted to be carried by the. supporting. shaft.
2. In a universal positioning tool, a’ supporting
trated in Figs. 5 and 6, the low portion 96 of
the cam is in such position as to engage the
adjusting nut 59 if the adjusting nut is moved
into engagement with the cam. The adjusting
nut 59 is then moved close to the cam without
bringing pressure to operate the drawbar shaft 54.
A set screw 95 is provided for locking the adjust
ing nut 59 on the screw threaded end 51 of the
shaft 54. When the cam 55 is in the position
shown in Figs. _5 and 6, the connections between
' the-several shafts comprising the supporting
structure are relatively loose, so that the vise may
be moved to any desired position as above de
structurefor the tool comprisinga supporting
base member provided with a head having a bore
therethrough, a drawbar shaft having an inner
end extending throughv the bore in the head,
clamp operating means attached to the inner
end of the drawbar shaft and operative for fric
tionally clamping the parts of the tool supporting
structure to prevent relative movement of its
parts, a clamping sleeve surrounding the outer
end ofv the drawbar shaft, the outer ends of the
drawbar shaft and clamping sleeve having bores
of the same size extending transversely there~
scribed. When the desired position of the vise
through, a split clamp shaft extending through
has been established, the lever '69 is moved down
the bores in the clamping sleeve and drawbar
wardly to theposition shown in- Fig. 7, so that
the vportion of the cam engaging ‘the surface of 20 shaft, said split clamp shaft having an adjustable
sized bore extending transversely therethrough,
the adjusting nut 59 moves it toward the left,
as viewed in Figs. 5, 6 and 7.
This causes the
a supporting shaft having one end positioned
through the variable bore, and a tool mounted to
be carried by the other end of the shaft, said
clamp operating means being operable to a
engagement with one side of the head 52 to pre
clamping position to force the clamping sleeve
vent rotation of the shaft 54 about its axis. In
tightly against the head of the supporting base
the same manner as described above with respect
member
to bind the drawbar shaft against rota;
to; the embodiment of the invention shown in
tion about its axis, to simultaneously squeeze the
Figs. 1 and 2, .the clamping sleeve ‘H tightly
engages the split clamp shaft 15 preventing it 30 split clamp shaft within the bores in the draw-,
bar shaft and the clamping sleeve to clamp the
from moving about its axis and the bore 18 in
split clamp shaft against movement about its axis,
the upper end of the split clamp shaft 15 is
and to simultaneously reduce the size of the bore
tightly clamped about the supporting shaft 84 to
in
the split clamp shaft about the tool supporting
thus prevent it from movement about its axis,
thus locking the vise in its adjusted position. 35: shaft to clamp the tool supporting shaft against
drawbar shaft 54 to be moved toward the left,
thus moving the clamping sleeve ll into tight
The cradle 62, the cams 65 and the lever 69
may .be moved as a unit about the axis of the
drawbar shaft 54, so that the lever 69 may oper
ate on the one side or the other of the axis of the
shaft 54 instead of above the axis of the shaft as “
illustrated. This is an added convenience when
the vise is in a position bent back adjacent the
supporting base 5|.
' Also, if desired, the cradle 62 may in certain
cases be omitted and the cams 65 positioned be
tween the head 52
adjusting nut 59
One or' the other
curved to receive
movement about its axis.
'
'
3. In a universal positioning tool, a support;
ing structure for the tool comprising a supporting
base member provided with a head having a bore
therethrough, a drawbar shaft having an inner
end extending through the bore in the head,
clamp operating means attached to the inner
end of the drawbar shaft and operative for fric-"
tionally clamping the parts of the tool support
ing structure to prevent relative movement of its
parts, a clamping sleeve surrounding the outer
end of the drawbar shaft, the outer ends of the
drawbar shaft and clamping sleeve having bores
of the supporting base and the
in direct contact with both.
of these two members may be
of the same diameter extending transversely
the curved surfaces 64 of the 50 therethrough, a split clamp vshaft extending
cams 65 to thus more positively hold the cams in
through the bores in the clamping sleeve and
the desired position.
drawbar shaft, said split clamp shaft having'a'
It will be apparent to those skilled in the art
variable sized bore extending transversely there'
that modi?cations may be made in the speci?c
through, a supporting shaft having one end POSi-i
structures illustrated and described within the 55 tioned through the variable bore, and a tool
mounted to be carried by the other end of the
scope of my invention, and I do not wish to be
shaft, said clamp operating means being operable
limited otherwise than in accordance with the
to a clamping position to force the clamping
appended claims.
sleeve tightly against the head of the supporting
I claim as my invention:
1. In a universal positioning tool, a supporting 60 base member to bind the drawbar shaft against
rotation about its axis, to simultaneously squeeze
structure for the tool comprising a supporting
the split clamp shaft within the bores in the
base member provided with a head having a bore
drawbar shaft and the clamping sleeve to clamp
therethrough, a drawbar shaft having an inner
the split clamp shaft against movement about
end extending through the bore in the head,
clamp operating means attached to the inner end 65 its axis, and to simultaneously reduce the size of:
the bore in the split clamp shaft about the tool
of the drawbar shaft and operative for friction
supporting shaft to clamp the tool supporting
ally clamping the parts of the tool supporting
shaft against movement about its axis, the clamp
structure to prevent relative movement of its
operating means comprising a nut screw thread-'
parts, a clamping sleeve surrounding the outer
end of the drawbar shaft, the outer ends of the 70 edly attached to the end of the drawbar shaft
and positioned to engage one side of‘ the head
drawbar shaft and clamping sleeve having bores
of the supporting base member for forceably mov-y
of the same size extending transversely there
ing the drawbar shaft with respect to the head
through, a split clamp shaft extending through
of the supporting base member.
'
,
I,
the bores ‘in the clamping sleeve and drawbar
shaft, said split clamp shaft having an adjustable 75 ,4. In a. universal positioning tool, asuvnqrte
anemia
haze .therethrough, .a ldrawbarishatt having .an
shaft ‘sou-a5 vto-.;e2de_nd inwardly beyond the part
sofa/he drawbar shaft ofylarger diameter, the-outer
ends of the iglrawbar shaft and “clamping sleeve
inner.endlextendingethrough;the;bore in thehead,
selamp Loperating means attached :toithe inner
end :ofithe drawbartshait and operative .for trio.
:tionally ‘clamping the .partsiof the tool support
ing Vzstructure .toiprevent relative movement‘, of .its
versely therethrough, a split clamp .-shaft haw
ins :a lower end extending through the boxes in
the .clampins sleeve and drawbar shaft, said Split
clamp'shaftehavinean upper ‘end of :largeridiamr
parts, a ..clamping sleeve'suntounding the ‘outer
veter-_than the lower end, anadiustablesized - "
higtstmeture for the ~.too1.~comprising a support.
inghaselmembereprovided with ahead having a
having bones. of the same size extending trans:
‘end ‘of ethe drawbarushaft, :the. outer .ends of “the 10 extending transversely throne-.11 the upper ene~.-qf
the split clamp-shaft, a supportinggsha?ihavies
sue end PQ§ilii0nQd through the variable here; a
heel Iméuntedw ?ee-carried-zby the other endpjf
the shaft and clamp Qpérating means attechesi
to the. inner vend 9f the drawer Shaft and ge
Ydrasvbar shaft andlclamping sleeve ‘having ..bores
.of thesame size extending transversely there.
tnroughra. split .clamp shaft extending through
the :bores in the ‘clamping ‘sleeve ‘and drawbar
shaft, said split "clampsv shaft .having a variable v15
erebie we clampinapositionto forcathe eleme
sized hore extending transversely therethrough,
vagsupporting shaft ‘having :one :end ..positioned
through the variable “bureau-and a ‘tool mounted
'totbegcarried by -:the other end of ‘the shaft, said
.elamp eoperating means being operable “to Via 20
ies sleeve tightly against the head of the sup.
shaftagainst mavementabout itsiaxis, the .elamp
moving the drawbar shaft with respect?to?the
thteadedly: attached-to .the inner end of the draw
har-jshaft, :a saddle rhetween the head (of the
ksupportingrmember and-theclamping =nut, a, cam
structure for the tool .eomprising' a ‘supporting
base-,membertprovided \uith'a hea‘fd having'ga bore
operatively positioned between the'clamping nut
and :thesaddleafor iforceably moving the .drawbar
shaft. ‘with respect-to ithe head .of
supporting
end extending lthrough the boreiin, the head ‘and
an outer ,end of ‘larger diameter than the inner
evrting base, member to bind ‘the silfawbar shat;
against rotaiieneheut' 111M818, to simultaneously
4Seu§eZHheIsn1it elem!» shaft. within the was tie
clamping position ‘to force ‘the ‘clamping ‘sleeve
thefdravlbarlshaft and the clamping sleeve to
tightly vagainst thelhead ~oi the supporting-base
clemprlthe split clamp shaft against mower
member ztOlbll'ld the .idrawbar shaft against rota
about _its}ax_i.s, @nd "to simultaneously reduces-the
tion aboutiits axis, to simultaneously squeezethe
size pfthe herein the split clamp. shaft i about ‘the
split clamp shaft ‘within theibores. ingthe draw 25 tool‘supporting shaft :to clamp the tool support,
"bar .shaft .and »\the .clamping sleeve .4110 lclamp the
ing shaft againstLmovem'ént about its axisthe
'e'll'amp operating means comprising a .nut‘serew
split glamp shaft against movement about its
threadedlyfattached‘to‘the end of the drawbar
»a.xis,.and :to simultaneously reduce the size of
shaft v‘and positioned to engage one ~.'s_ide ‘of Qtlji'e
the borerin the sp1it:clamp rshaitiabout the tool
suplJQrting shaft 'to .clamp the tool supporting 30 head’ of the supporting ‘base member for lforceably
.QDeratingmeansnomprising.aclampingrnutscrew
head
'7. In
of aguniversalpositioning
the supporting lbasefmember.
tool, ,a supporting
' '
therethrough,‘ a rdrawrbar vsha'it having an " inner
endpa olampingsleeve surrounding‘v'the outerzlend
base member
of bhe-drawbar shaft, the clamping sleeve being
longer than Pheouter lend portioniof the draw;
' .5. 1In_a universal positioning :tool, a supporting
.Structure. for the ‘£17001 ‘comprising -a supporting
haseimember providedwith a .head‘having albore
therethrough, a ?drawbar =shaft having an inner
end .eirtendingothrough .the :bore, in ithe-head and
an outer end‘of larger diameter than-the-inner
bar shaft so as to extend inwardly .beyond the
part of the 'drawbar shaft of larger diameter, the
outer ends of the clrawhar shaftand clamping
sleeveihavine ‘bores of the same size extending
end, i a clamping sleeve. surrounding "the _ outer end
transversely
having allower
therethroug'h,
and ‘attending
a through
split damn
the?
in the clamping sleeve" and'drawbar ‘shaft,
splitgclamp'shalfthaving an upper end of jlarger
diameter than the lower end; an'adjustable sized
of ;the drawbar shaft and being longer than the
outer end .portionof the :drawbar shaft so as to
extend inwardly. beyond thew-part of -:the 'draw
harkshaft of largeridiametergthe outer ends of
the drawbar shaft and _-clamping sleeve having
bore‘ extending transversely through the upper
bores aof the .-same size extending ‘transversely
therethrough, a split clamp shaitlhaving a-lovver
end of the splitclamp shaftj-aisupporting'shaft
having one endpositi'oned-through the adjustable
endtextending through the boresin theclamping
sleeveiand .drawbar shaft, ‘said split olarnp' shaft‘
- other lend of .the shaft, and .clamp operating
having an upper .endof 'largerQdi-ameter than “the
means'attached-to theinnerendof the drawbar
lowereenda-variable sizedibore extending trans
ilierselylthrough’the upper end-of the‘split clamp
shaft, -a supporting shaft having one end posi
tioned-within the variable bore,and a~too1 ‘mount
sized bore, ‘a tool-mounted :to be carried bylth'e
shaft and operablevto a, ‘clamping position to_-force
the clamping sleeve tightly against.,-the.head_vof
the supporting base memberato-bind theldrawbar
> shaftegainst retationebout itsaxiswto simul
ed to ‘be carried by the supporting shaft, and
clamp operatingmeans'attaehed to {the inner end
ef-ithe draw-bar shaft‘ andloperative ‘for frictional
l-y “clamping the parts of the tool supporting
‘structure to prevent relative »movement of its
parts.
65
taneously squeeze =thepsplit clamp shaft within
thejrboresin the drawbar shaft and the Lelamping
sleeve to clamp theysplit "clamp shaft against
movement about its vaxis, and to simultaneously
redupethe size of the adjustable bore. inthe. split
clamp shaft about the-tool supporting vshaft to
base member provided with a head ‘having-a‘ bore
clamp the tool supporting shaft against move
mentaboutitsaxis, the elamp operating means
eomprisinga clamping nut screw threadedlyzat
therethrough, p a drawbarwshaft having an inner
taehed to the v inner end of the . drawbar. shaft, g1,
~ ;6. Inga universalrpositioning tool, a supporting
structure for the tool -_comprising a supporting
eampperatively posltipyned between? the clamping
end :extending through :the ~bore Jin the ‘head and
an vouter end of larger .diameter--than__-the inner
.endaelamping sleeve surrounding the .outer end
nut. and theihead of the supporting member” for
forceablymovingithe drawbar shaft withmespect
of the drawbar shaft, "the .lclamping-sleeve :being
to the i head ‘of "the . supporting base member.
longen-tha-n the outer iend-yportiongofgthe drawbar 76
:8. zIn._aiuniversalzpqsitioningetoo1,,¢a_;support1ng
2,506,440
110
ner end extending through the bore in the head,
a clamping sleeve surrounding the outer end of
the drawbar shaft, the outer ends of the drawbar
therethrough, a drawbar, shaft having an inner
shaft and clamping sleeve having bores of the
end extending through the bore in the head, a
clamping sleeve surrounding the outer end of O! same size extending transversely therethrough, ‘a
split clamp shaft extending through the bores in
the drawbar shaft, the outer ends of the draw»
the clamping sleeve and drawbar shaft, said split
bar shaft and clamping sleeve having bores of
structure for the tool ‘comprising a supporting
base member provided with a head having a bore
the same size extending transversely there
clamp shaft having a variable sized bore extend
ing transversely therethrough, a supporting shaft
through, a split clamp shaft extending through
the bores in the clamping sleeve and drawbar 10 having one end positioned through the variable
bore, a tool mounted to be carried by the other
shaft, said split clamp-shaft having an adjust
end of the shaft, and clamp operating means at
able sized bore extending transversely there
tached to the inner end of the drawbar shaft and
through, a supporting shaft having one end'posi
operable to a clamping position to force the
tioned through the variable bore, a tool mounted
clamping sleeve tightly against the head of the
to be carried by the supporting shaft, and clamp
supporting base member to bind ‘the drawbar
operating means attached to the inner end of the
shaft against rotation about its axis, to simul-,
drawbar shaft and operative for moving the
taneously squeeze the split clamp shaft within
drawbar shaft with respect ,to the supporting
the bores in the drawbar shaft and the clamp-f
base head for causing frictional engagement be
tween the clamping sleeve and the head, and be 2.0 ing sleeve to clamp the split clamp shaft against,
movement about its ,axis, and to simultaneously
tween‘the clamp sleeve, the drawbar shaft and
reduce the size of. the bore in the split clamp
the clamping sleeve, and between the clamp
shaft about the tool supporting shaft to clamp
sleeve and the supporting shaft to clamp these
the tool supporting shaft against movement
several parts of the tool supporting structure
against relative movement.
25 about its axis, the clamp operating means com
prising a clamping nut screw threadedly attached
to the inner end of the drawbar shaft, a saddle
between the head of the supporting member and
base member provided with a head having a bore
the clamping nut, a cam operatively positioned
therethrough, a drawbar shaft having an inner
end extending through the bore in the head, 30 between the clamping nut and the saddle for
forceably moving the drawbar shaft with respect
clamp operating means attached to the inner
to the head of the supporting base member, said
end of the drawbar shaft and operative for fric
cam having a handle extending in a direction
tionally clamping the parts of the tool support
generally parallel to the axis of the drawbar
ing structure to prevent relative movement of its
parts, a clamping sleeve surrounding the outer 35 shaft and operable toward or away from the
drawbar shaft for operating the cam in the one
end of the drawbar shaft, the outer ends of the
or the other direction to clamp or unclamp the
drawbar shaft and clamping sleeve having bores
parts of the tool supporting structure, the cam
of the same size extending transversely there
having a high area thereon so positioned as to
through, a split clamp shaft extending through
clamp the parts of the supporting structure when
the bores in the clamping sleeve and drawbar
the handle is moved inwardly toward the draw
shaft, said split clamp shaft having a variable
bar shaft and to unclamp the parts of the sup
sized bore extending transversely therethrough,
porting structure when the handle is moved out
a supporting shaft having one end positioned
wardly away from the drawbar shaft.
through the variable bore, and a tool mounted
11. In a universal positioning tool, a support
to be carried by the other end of the shaft, said ,
ing structure for the tool comprising a support
clamp operating means being operable to a
ing base member provided with a head having
clamping position to force the clamping sleeve
a bore therethrough, a drawbar shaft having an
tightly against the head of the supporting base
inner end extending through the bore in the
member to bind the drawbar shaft against rota
head, clamp operating means attached to the
tion about its axis, to simultaneously squeeze the
inner end of the drawbar shaft and operative
split clamp shaft within the bores in the draw
for frictionally clamping the parts of the tool
bar shaft and the clamping sleeve to clamp the
supporting structure to prevent relative move
split clamp shaft against movement about its axis,
ment of its parts, a clamping sleeve surrounding
and to simultaneously reduce the size of the bore
in the split clamp shaft about the tool support 55 the outer end of the drawbar shaft, the outer
ing shaft to clamp the tool supporting shaft
ends of the drawbar shaft and clamping sleeve
having bores of the same size extending trans
against movement about its axis, the clamp oper
ating means comprising a clamping nut screw
versely therethrough, a split clamp shaft extend
threadedly attached to the inner end of the
ing through the bores in the clamping sleeve and
drawbar shaft, a cam operatively positioned be 60 drawbar shaft, said split clamp shaft having a
tween the clamping nut and the head of the
variable sized bore extending transversely there
supporting member for forceably moving the
through, a supporting shaft having one end posi
drawbar shaft with respect to the head of the
tioned through the variable bore, and a tool
supporting base member, said cam having a han
mounted to be carried by the other end of the
dle extending in a direction generally parallel to 65 shaft, said clamp operating means being oper
the axis of the drawbar shaft, the cam and han
able to a clamping position to force the clamp
dle being free to move about the axis of the draw
ing sleeve tightly against the head of the sup
bar shaft and operable in any position with re
porting base member to bind the drawbar shaft
spect to the axis of the drawbar shaft to move
against rotation about its axis, to simultaneously
the drawbar shaft for clamping or unclamping 70 squeeze the split clamp shaft within the bores
the parts of tool supporting structure.
in the drawbar shaft and the clamping sleeve
10. In a universal positioning tool, a support
to clamp the split clamp shaft against movement
ing structure for the tool comprising a support
about its axis, and to simultaneously reduce the
ing base member provided with a head having a
size of the bore in the split clamp shaft about
bore therethrough, a drawbar shaft having an in 75 the tool supporting shaft to clamp the tool sup
9. In a universal positioning tool, a supporting
structure for the tool comprising a supporting
2; 6063446
eerting‘ shaft- against movement about its» axis,
theelamp operating means comprising a clamp
ing'nut- screw threadedly attached‘ to the inner
end of the drawbar shaft, a saddle between the
head- of thesupporting member and the clamping
nut, a cam operatively positionedv between the
clamping nut and the saddle for forceably- mov
ing the drawbar shaft with respect to the head
12
axis of the drawba-r shaft and operable “in any
‘position about the drawbar Shaft'for clamping
or unclamping the parts of ‘the toolsupportlng
structure.
PAUL F; CARLSON.‘ '
REFERENCES CITED
The following references are‘ of recordv in the
?le of‘ this patent:
of the supporting base member, said cam hav
ing a handle extending in; a direction generally; 10
UNITED STATES PATENTS
paraiiel to the axis of the di'awbar shaft and
Number
Name
Date
operable toward oraway from thedrawbar shaft‘
791*,3‘7'6'
Schneider __n__. ____ _, Aug. 15,1905‘
for operating the cam-in the-one or‘ the other
943,573
Simon __,_ _______ __ Dec. 14, 1909
direction to clamp or- unclamp the parts of the
1,012,383’
Lyhne ___________ __ Dec. 19, 1911?
tool supporting structure, the-6am having a high
1,273,3191
Blakely __________ __ July 23', 1918
area‘thereon so positioned asut'o clamp the parts
ojj the supporting‘ strueture when the handle is‘
mpvecl inwardly toward the 'drawbar- shaft and
to unclarnp the parts of" the supporting structure.
when the handle is; meveoloutwardly away from
the drawbar shaft, the saddle, cam and camv
handle being free to move as a unit about the‘
1,410,608
Schroth _______-,___ Mar. 28, 1922
Number ,
218,430
Country_
Date:
Germany: ____ _v_____, Jan. 28, 1910
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