Lock Page: 4 of 5
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389,355
slot T, and a sliding bolt, U, is mounted in
loops V V on the outer side of the hasp to en-
gage the eye of the bolt C after the slot has
been passed thereover. One of the loopsVis
5 provided with a notch, w, and the bolt is pro-
vided with the studs W W,which are adapted
to pass through the said notch,whereby, When
the said studs are out of alignment with the
notch in either position of the bolt, the latter
io is locked.
The operation of this lock will now be clearly
seen. When the door is closed temporarily,
the hasp may be engaged with the eyebolt and
the bolt shot to engage the eye without oper-
15 ating the disk F. When it is desired to lock
the door permanently, insert the tongue in the
lock (having previously arranged the disk so
that the notch H is aligned with the slot) un-
til the notch S is aligned with the disk, insert
20 the post z of the key Z in the outer end of the
barrel G, thereby depressing the tumbler, en-
gage the lateral wings z' z' of the key (which
are arranged on opposite sides of the post) in
the notches z' z',which areformed in the outer
25 end of the barrel G, on opposite sides of the
opening in the barrel, and then rotate the disk
until the apertures therein are aligned with the
apertures in the plate E and the studs on the
tumbler automatically engage the apertures
30 of the disk. The key is shown clearly in Fig.
7 of the drawings, and with it the lock is very
easily manipulated. The case of the lock is
solid or formed in a single piece with the ex-
ception of the rear plate, and as the latter is
35 held against the jamb of the door, it cannot be
removed without first removing the lock. In
addition to the eyebolt which passes through
the inner end of the lock, a headed bolt, J, is
passed through an apertured ear on the outer
to end of thelock and is engaged at its inner end
by a nut.
It will be observed that the lock is so con-
structed as to defy the efforts of a lock-picker
to open it without the use of a key of the same
45 construction as that shown in the drawings,
when for the reason that the only other open-
ing in the lock-case (namely, the slot I) is
covered by the hasp; but in order to prevent
the disarrangement of the parts of the lock in
50 its unlocked position by the insertion of a
tool through the slot I a concealing-flange, 0',
depends from the edge of the plate O and ex-
tends to the plate E, thereby completely cov-
ering the tumbler.
55 Having thus described my invention, I
claim-
1. In a lock, the combination of the case
having the slot I in its face, the notched disk'
mounted in the case and having apertures L
60 therein, the tumbler having the studs to
engage the said apertures, and the hasp pro-
vided with a tongue to pass through the slot
I and engage the disk, substantially as speci-
fled.
65 2. In a lock, the combination, with the case
having a slot, I, in its face, of the notcheddisk mounted in the case and having aper-
tures L therein, the plate E, having aper-
tures e' e' therein, the tumbler having the studs
operating in the apertures e' and engaging 70
the apertures L, and the hasp having a
notched tongue adapted to engage the said
disk,stibstantially as and for the purpose speci-
fied.
3. In a lock, the combination, with the case 75
having the slot I and the bearing a in its
face, of the plate E, having the bearing e
aligned with the bearing a, the disk having a
barrel,G, mounted in the bearings, the tumbler
having the pin N fitting in the barrel and 8o
studs adapted to engage apertures in the disk,
and the hasp having the tongue to engage the
disk, substantially as and for the purpose
specified.
4. In a lock, the combination, with the case 85
having the apertured plate E therein, of the
disk mounted in bearings in the case and
plate, the tumbler having studs to engage
apertures in the disk, the spring bearing on
the tumbler to press it toward the disk, and 90
the key having a post to pass through a cen-
tral aperture in the disk to repress the tum-
bler, substantially as specified.
5. In a lock, the combination, with the case
A, having the slot I and the bearing a, of the 95
plate E, arranged in guide-grooves in the case
and having a bearing, e, and the apertures e' e',
the disk having the notch H in its edge, the
projection or offset to limit the rotation of the
disk, and the apertures L, the rigid barrel G, ioo
mounted at its ends in the bearings a and e,
the tumbler having the pin N to operate in
the barrel and studs to engage the apertures
e' and L, the plate O, having the flange 0', the
spring mounted between the tumbler and ro5
the plate O, and the hasp having a notched
tongue to pass through the slot I and engage
the disk, substantially as and for the purpose
specified.
6. The -combination, with the eyebolt, of ito
the hasp having the slot T to embrace said
eyebolt, the loops arranged on the hasp, the
sliding bolt mounted in the loops and adapted
to engage the eye of the said eyebolt, and the
studs on the bolt adapted to pass through a i
notch in one of the loops, all constructed, ar-
ranged, and operated substantially as and for
the purpose specified.
7. In a lock, the combination, with the case
having the slot I in its face, of the disk mounted 120
inthe case and having the notch H andthe aper-
tures L, the barrel at the center of the disk, the
plate O, having a guide opening therein, the
tumbler having the studs to engage the aper-
tures L, the guide-pin and the pin N, mounted, 125
respectively, in the opening in the plate O
and in the barrel, and the spring coiled on
the guide-pin between the tumbler' and the
plate O, substantially as specified.
8. In a lock, the combination, with the case r3o
having the bearing a, the disk having the bar-
rel G, mounted in the bearing a, and having
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Reference the current page of this Patent.
Bergman, John. Lock, patent, September 11, 1888; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth171843/m1/4/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.