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Патент USA US2127583

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Patented Aug. 23, 1938
2,127,583 "
'3, ‘Robert T; vBurgess,’‘Holden,
., 5
v '- .Application February 17, l938-,'Seria1'1§‘o;’l9.1;|(l5v1 - I. I 'y
Q '
My invention relatesI to‘ improvements
in looks,
and the main object is to provide a simple and
positive lock particularly suitable for outdoor use
on doors, gates and other places where a con
ventional hasp and staple would be used.
Another object is to provide a lock of this kind
wherein the lock housing takes the form of the
hasp, being pivotally mounted at one end to the
door or frame and, having a slot at its other end
10 to engage the staple, and the locking being car
ried out by a pivoted lock bar adapted to swing
through the staple crosswise to the slot and so
secure the “hasp” to the staple.
A further object is to provide a lock of this
15 kind wherein a double locking feature is provided
by means of a slidable latch- bar adapted to en
gage the aforesaid lock bar in its staple engaging
position and to prevent the lock bar from swing
ing out of ‘the staple until both bars are released
by a key inserted in the lock itself.
The foregoing and other more speci?c objects
and advantages of my invention will be made evi
dentin the course of the following detailed speci
?cation, reference being had to the accompanying
drawing wherein
Figure 1 is an elevation of my improved look as
mounted on a door and frame, only a portion of
the door and frame being shown, and the cover
plate of the lock being removed to disclose the
internal construction.
Figure 2 is a similar view of the lock alone, the
lock bar and associated parts being shown in
unlocked positions.
Figure 3 is a cross section along the line 3—3 in
Figure 1.
Figure 4 is a cross section along the line 4-4 in
Figure 2.
In carrying out my invention, I provide the
member 5 made in the shape of a hasp in elon
gated narrow form having an eye 6 at one end by
which it may be fastened to a ring or staple A in
the door B and having a longitudinally extended
slot 1 in the other end adapted to receive'the
staple C fastened to the door frame D. Between
-. these ends of the hasp member 5 a rectangular
lock housing 8 is formed and comprises the
frontal end 9, sides In and H and rear end l2
adapted to be covered by a removable ?at cover
plate l3 held in place by screws or rivets l4.
50 > The frontal end 9 of the housing 8 is parted
medially and provided with arcuate wings l5
forming a socket in which the rounded hub N5
of the lock bar I1 is pivotally mounted and
wherein it is secured by a pivot pin I8 extended
55 through the housing and cover l3. This lock bar
l1 7091172)
has alateral
offset l9 '_and
v; an
r arcuatelygturned
lock hook 20 which is adapted to swing through
the staple C when the lock bar is pivoted 0n the
pin l8 across the face of the slotted end of the
hasp member as shown in Figure 1. The lock bar
and its hook are concealed in the locked position
by means of the ‘sinuous channel-shaped en
closures 2| formed on the hasp member and
opening at one side to receive the bar and hook as
At its inner end the lock bar I‘! has the short
extended lock arm 22 and between this arm and
the lower side ll of the housing 8 an expansion
coil spring 23 is braced and arranged to normally
swing the latch bar on the pin [8 and cause the
hook 20 to swing out of engagement with the
staple C.
This movement is limited by engage
ment of the arm 22 with one of the wings l5 as
shown in Figure 2.
A lock block 24 is slidably mounted in the
upper portion of the housing 8 and is normally
urged forwardly therein toward the end 9 by an
expansion coil spring 25 braced between the op
posite housing end l2 and an extension 26 of the
block. The frontal corner portion 21 of the block
24 is thus adapted to overlie the arm 22 and hold
the lock bar IT in its locked position (Figure 1)
but by inserting a key 28 through the key hole 29
in the cover I3 and engaging it with the recess 30
the block may be urged rearwardly so as to clear '
the arm 22 and allow the bar ll to clear the
staple C (Figure 2). Then to lock the bar with
the staple again the bar is swung by hand into
this position whereupon the spring 25 moves the
block 24 forwardly again holding the bar in
locked position. The block 24 may be slotted in
its rear portion at 3| to receive an index plate
32 secured to the rear upper corner of the housing
8 and the key 28 provided with a notch 33 to
clear this plate so that in unlocked position the 40
key cannot be removed from the lock.
To further lock the bar I‘! in its staple engaging
position, I provide a latch bar 34 of flat elongated
form and which has its straight shank portion 35
slidably mounted lengthwise along the hasp mem 45
ber 5 in a groove 36formed therein. At its fron
tal end the latch bar_34 is forked to provide
spaced parallel ?ngers 31 for the slidable recep
tion of which branches 36a of the groove 36 are
provided. The rear end of the bar 34 is attached 50
by a pin or rivet 38 to the lock block 24 and the
aforesaid sliding movement of this block of course
causes a corresponding motion of the latch bar.
The pin l8 supporting the lock bar l-‘l passes
through a slot 39 in the latch bar which slot pro 55
vides for the necessary motion of the latch bar
ferred embodiment of my invention, it is under
as will be understood.
stood that I may vary from the same in minor
structural details, so as best to provide a practical
In the forward or locked position of the block
24, the latch bar ?ngers 31 project across the path
of the lock bar hook 20 and this hook has spaced
notches 40 in its inner or under side which receive
these ?ngers. As a result the hook is positively
locked against swinging out of locking engage
ment with the staples since to do so would require
10 shearing the ?ngers oif to ‘clear. However, as the
lock block 24 is moved back by the key in unlock
ing the lock, the latch bar is moved in such man
ner that the ?ngers 31 withdraw from the notches
40 and free the latch hook 20 as will be under
15 stood.
It will thus be understood that I have provided
a lock having a double locking feature and which
may be adapted to a wide variety of uses. The
lock of course may be made in any size desired.
While I have herein set forth a certain pre
device for the purposes intended, not departing
from the spirit of the invention and within the
scope of the appended claim.
I claim:
In a look, a hasp member having a staple re
ceiving slot, a lock bar pivoted at one end on the
hasp member, a hook extended from the free end
of the lock bar and adapted in locked position to
swing across the said staple receiving slot, an
arm extended from the lock bar, a key actuated
lock block adapted normally to engage the said
arm and retain the lock bar in locked position, a
latch bar slidably mounted on the hasp member
and connected to the lock block, and the other end
of the latch bar being adapted to engage and se
cure the hook in the locked position of the bar.
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