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Патент USA US2293637

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Aug. 18, 1942.
E. R. BQURQUE
2,293,637
ELECTRIC CLIPPER
Filed July 21, 1941'
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Patented Aug. 18, 1942
2,293,637
UNITED STATES. PATENT OFFICE
2,293,637
ELECTRIC CLIPPER
Emile R. Bourque, Moosup, Conn., assignor 0f
thirty-?ve per cent to Telesphore Arguin,
Northbridge, Mass.
Application July 21, 1941, Serial No. 403,439
6 Claims. v‘(01. 30-215)
My invention relates to improvements in power
driven clippers, and particularly to improvements
in electrically driven hair clippers especially, al
though not necessarily, for barbers’ use in trim
ming and cutting the hair of customers, and the >
primary object of my invention is to provide a
more ei?cient, safer and more comfortable ar
rangement of this character.
adjacent end of the casing 5.
A rubber or sim
ilar material bumper sleeve 22 is circumposed
on the connecting rod to avoid any harsh en
gagement with the sides of the opening 2I.
A tongue 23 extends longitudinally from the
end of the casing 5 adjacent the opening 2|. A
lower stationary cutter 25 has a shank 44 at its
inner end fastened to the tongue by screws 45
and opposite sides of the cutter are beveled as
Other important objects and advantages of
my invention will be apparent from a reading of 10 indicated by the numerals 26 and formed with
teeth 21. The flat top of the lower cutter 25
the following description taken in connection
is formed with a longitudinal slot 28 which is
with the appended drawings, wherein for pur
opposed to a similar longitudinal concavity 29
poses of illustration I have shown a preferred
in the upper cutter 30 as indicated in Figure 6
embodiment of my invention.
15 of the drawings. The upper cutter 3|] has the
In the drawings:
marginal portions of its top beveled as indicated
Figure 1 is a general side elevational view
by the numerals 3| and formed with teeth 32
matching the teeth 2'! of the lower cutter, the
?at bottom of the upper cutter and the ?at top
Figure 3 is an enlarged transverse vertical sec
tional view taken through Figure 2 along the 20 of the lower cutter cooperating in shearing en
gagement as indicated.
line 3—3 and looking toward the right in the
partly broken away to show interior mechanism.
Figure 2 is a top plan view of Figure 1.
At longitudinally spaced points the lower cut
direction of the arrows.
ter is provided with threaded holes 33 and 34
Figure 4 is a plan view of the lower cutter.
which receive threaded lower ends of pins 36,
Figure 5 is a plan view of the upper cutter.
Figure 6 is a somewhat enlarged transverse 25 the pins having upper portions extending up
wardly through longitudinal slots 39 formed in
vertical sectional view taken through the as
the upper cutter 39, the ‘upper portions of the
pins passing upwardly through holes 40 in the
top plate 4I, above which the pins have circum
arm.
Figure 8 is an enlarged elevational view of the 30 posed thereon expanding helical springs 42 which
are held in adjustable tension by nuts 43 threaded
eccentric follower.
sembled cutters.
Figure 7 is a perspective View of the support
Referring in detail to the drawings, the nu
meral 5 generally designates a casing formed to
act as a handle, being preferably elongated as
shown and containing a coaxial electric motor
(not shown) having the coaxial shaft 6 formed
with a worm thread ‘I positioned at one end
within the casing and in mesh with a worm
wheel .8 rotatably mounted in the casing and
having on one side the circular eccentric 9 which
on the upper ends of the pins, whereby the de
sired pressure of the upper and lower cutters
against each other is provided and maintained.
The upper cutter 30 has a reduced rectangular
plate portion 46 which is formed with a hole 41
which accommodates the pivot 48 which con
nects the outer end of the connecting rod 20
with the said upper cutter. With the switch
handle 50 which is provided on the casing 5 in
the “on” position the motor will drive the shaft
is operatively disposed between the legs I0 and
6 so as to rotate the worm wheel 8 and the ec
II of the follower which is generally designated
centric 9 and thereby cause oscillation of follower
I2. The legs depend from opposite sides of a
I2 with consequent reciprocation of the upper
plate portion I3 in which are formed longitudi
nally spaced holes I4 and I5. The hole I5 re 45 cutter 39 relative to the lower cutter through the
agency of the connecting rod 29, at a suf?ciently
ceives a pivot bolt I6 whereby the follower is
high speed to effect the desired shearing action
rockably mounted above the worm shaft as shown
in Figure 1 of the drawings and at one side of
said shaft, with the edges of the plate I3 yield
ably engaged by oppositely directed depending
leaf springs I1 and I8, respectively, which are
attached to the upper wall of the casing. The
hole I4 has rotatably inserted therein a lateral
of the teeth of the cutters.
To protect against injurious contact of the cut
50 ters with the head of the customer a rotatable
offset guard rod 5I having its main portion lying
alongside of and adjacent one side edge of the
cutters is pivoted in the near end wall of the
casing and provided with a toothed wheel 52
arm IS on the connecting rod 20 which works
through an accommodating opening 2| in the 55 which is in mesh with a sector gear 53 having
2
2,293,637
a handle 54, enabling the operator of the clipper
to manipulate the guard rod toward and away
rotary motor, an eccentric operated by the mo
tor, a rocker pivoted on said support, said rocker
having a pair of laterally spaced followers opera
from the toothed edges of the cutters so as to
space the teeth from the head, of the customer
against which the guard rod will be placed in
tively engaging opposite sides of said eccentric,
moving the clipper over the head in a hair cut
rocker toward an intermediate position after be
ting operation.
Although I have shown and described herein a
dual spring means operating to return said
ing rocked in either direction by the eccentric,
said dual spring means operating to keep said
preferred embodiment of my invention, it is to
followers engaged with the periphery of the co
be de?nitely understood that I do not wish to» 10 centric, a movable cutter on said support, and an
limit the application of my invention thereto,
operating connection between said rocker and
except as may be required by the scope Of the
said cutter.
subjoined claims,
4. A clipper comprising a handle comprising a
Having described the invention, what is
casing containing a motor having a rotary worm
claimed as new is:
15 shaft, a wormwheel journaled across the casing
1. A clipper of the character described com
and meshed with said Worm shaft, an eccentric
prising a handle comprising a casing, a station
on said worm wheel, a rocker pivoted in said cas
ary toothed cutter projecting from the forward
ing, said rocker having spaced followers engag
end of the handle, a movable toothed cutter
ing opposite sides of said eccentric, spring means
mounted alongside of said stationary cutter, 20 normally urging said rocker toward an interme
means securing said cutters in position with the
diate position, said spring means operating to
movable cutter free for limited longitudinal re
keep the followers engaged with the periphery
ciprocation relative to said stationary cutter,
of the eccentric, a stationary cutter extending
drive means within said casing, and a drive con
from said casing, a movable cutter supported
nection between said movable cutter and said
alongside of said stationary cutter, and a con
drive means, and a laterally adjustable guard
necting rod pivotally connected at its opposite
extending longitudinally alongside the stationary
ends to said rocker and said movable cutter.
cutter.
5. In a power clipper comprising a ‘pair of
2. A clipper of the character described com
longitudinally extending relatively movable out
prising a handle comprising a casing, a station
ary cutter projecting from the handle, a mov
able cutter mounted alongside of said stationary
30 ters, a handle on which the cutters are mounted
at one end, and a guard projecting from the
handle along one side of the cutters.
6. In a power clipper comprising a pair of
cutter, means securing said cutters in position
with the movable cutter free for limited longi
longitudinally extending relatively movable cut
tudinal reciprocation relative to said stationary 35 ters, a handle on which the cutters are mounted
cutter, drive means within said casing, and a
at one end, and a guard projecting from the
drive connection between said movable cutter
handle along one side of the cutters, said guard
and said drive means, said drive means compris
consisting of a rod eccentrically mounted on the
ing .a rotary transverse eccentric, and motor
handle for rotation, and means on the handle
means for turning the same, said drive connec—
for rotatably adjusting said rod to position the
tion comprising a rocker operated by said eccen
same at different distances from the side of the
tric, and an operating element connecting said
cutters.
'
rocker and the movable cutter.
EMILE R.'BOURQUE.
3. A clipper comprising a support containing a
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