Improvements in Locks and Latches.
Year: 1890

page_text: Date of Application, 19th July, 1890
Complete Specification Left, 20th Apr., 1891-Accepted, 6th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Locks and Latches.
I, CHARLES SHAW, of 21 Waterloo Road, South, Wolverhampton in the
County of Stafford, Architect, do hereby declare the nature of this invention to be
as follows:-
This invention has for its chief object improvements in the locking mechanism of
locks and latches for the purpose more especially, in its main applications, of
reducing the space occupied and allowing consequently of the employment of a
case of much smaller dimensions than usual. The invention comprises, also, a
special combination of the improved mechanism with a lifting bolt, more particu-
larly for use with a door or gate; and comprises various modifications adapted to
trunk locks and padlocks and for other purposes.
The main feature of this invention, consists of a turning locking frame or plate
carried within a circular portion of the lock or latch case or around a central pin,
or both within such a portion and around such a pin, and capable of being turned
the necessary distance, as hereinafter shewn, in one direction, by means of a key,
and of being moved back such distance by means of a spring. The edge of the
frame or plate is gated to receive the key bit. The tail of the bolt passes between
the sides of a pair of plates forming the locking frame (or at or within the side of
such frame or locking plate), and studs on the bolt pass, as the bolt is moved
inwards, into open-ended slots formed in the plates. This can be effected, however,
only when the frame has been moved by the key into the proper position therefor.
When the bolt has been moved out to its proper distance for locking or latching,
a spring within the case turns the frame back again and brings a portion of its
edge into position behind the studs, and thus the bolt is prevented from being
moved back. The bolt may be moved in and out by hand by means of a suitable
knob, or knob and spindle, or other contrivance, or it may be shot in and out by
the key; or it may be pressed out by a spring and be moved in by means of the
key, or by a knob or knob and spindle, or other contrivance.
For the purpose of a door or gate latch the case containing the turning frame.or
plate may be pivoted by means of a pin, so that it may be turned to raise the outer
end of the holt to disengage it from the catch on the jamb or other part against
which the door or gate closes. The turning of the latch may be effected by a
knob on the spindle, or by a lifter as in the case of a Norfolk or Suffolk latch, or
by a finger-piece projecting from the case, or in other convenient manner.
There may be several turning frames or plates, if desired, so as to increase the
security of the lock or latch.
The locking frame or plate, or each locking frame or plate, may be fitted with
a lever which is raised by the key and depressed by a spring, as in the levers of
lever locks, and such lever may be pivoted to the frame or plate, so as to turn
therewith, and may engage with a stud fixed within the case to lock the locking
frame or plate.
The lock or latch case may consist of a portion shaped to receive the locking
frame or plate (or frames or plates) and to receive the key bit, and of a longi-
tudinal portion to receive the bolt; and the latter portion may be passed into and,
if necessary, through the former portion. When used for a mortise lock the
former portion may be put in place in an opening formed in from the face of the
door, and the latter portion in an opening formed in the edge of the door and
joining the opening formed in from the face. When the bolt is used also as a lifting
latch no longitudinal case is required, as the front end of the bolt passes through a
guide or keen.

page_text: In adapting the mechanism to a trunk lock the locking frame or plate is formed
with a slot to receive the link or staple of the hasp, and with tongues or catches
which pass into the link or staple as the frame or plate is turned, and thus securely
hold or lock the hasp; or the lock may be carried by the hasp and close over a
staple fixed to the trunk. This arrangement of lock may also be used as a
padlock, by passing it over the staple and locking it thereon after a hasp has been
closed down thereover. In either of these cases, also, the staple may be formed
as a solid stud with undercut ends, and the tongues of the locking frame or plate
be moved to gear with such ends in locking. The padlock may, also, be con-
structed to pass up edgeways over one leg or side of the staple, and the locking
frame or plate be formed with a tongue which passes over such leg or side as the
frame or plate is turned in locking.
A further modification of the invention, as applied to a trunk lock or padlock,
consists in pivoting within the case a lever which has a projection thereon to enter
the staple, and providing the turning frame or plate with a lug which, as the frame
or plate is turned in one direction, engages with the end of the lever and moves it
back so as to withdraw the projection thereof from the staple, the lever being moved
inwards, to lock the staple, by means of a spring.
In adapting this invention to a strap lock, a pin which is held down by a spring
passes through an eyelet hole in the strap, and is drawn up against the pressure of
the spring to release the strap. The pin has a collar over which a sliding bolt is
passed to hold it down, and this bolt is locked by a locking frame or plate in the
manner above described. A slotted opening is formed through the bolt, and a
portion of such opening is large enough at one part to allow the collar to enter it
and the pin to be consequently drawn up, this part being brought into position over
the collar when the bolt is moved into its unlocked position. In lieu of the sliding
bolt, the turning frame or plate may be formed with a tongue to pass over the
collar aud lock the pin.
Dated this 18th day of July 1890.
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Locks and Latches.
I, CHARLES SHAW, of 21 Waterloo Road South, Wolverhampton, in the
County of Stafford, Architect, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention has for its chief object improvements in the locking mechanism of
locks and latches for the purpose more especially, in its main applications, of
reducing the space occupied and allowing consequently of the employment of a
case of much smaller dimensions than usual. The invention comprises, also, a
special combination of the improved mechanism with a lifting bolt, more particu-
larly for use with a door or gate; and comprises various modifications adapted to
trunk locks and padlocks and for other purposes.
The main feature of this invention consists of a turning locking frame or plate
carried within a circular shaped portion of the lock or latch case, or around a
central pin, or both within such a portion and around such a pin, and capable,
according to a convenient modification of its application, of being turned the
necessary distance, as hereinafter shewn, in one direction, by means of a key, and
of being moved back such distance by means of a spring. The edge of the frame
cr plate is gated to receive the key bit. The tail of the bolt passes between the
sides of a pair of plates forming the locking frame (or at or within the side of such
frame or of a single locking plate), and studs on the bolt pass, as the bolt is
moved inwards, along slots formed in the plates. This can be effected, however,
-

page_text: only when the frame has been moved by the key into the proper position therefor.
When the bolt has been moved out to its proper distance for locking or latching, a
spring within the case turns the frame back again and brings a portion of it into
position behind the studs, and thus the bolt is prevented from being moved back.
The bolt may be moved in and out by hand by means of a suitable knob, or knob
and spindle, or other contrivance; or it may be pressed out by a spring and be
moved in by means of a knob or knob and spindle, or other contrivance.
I will now proceed to describe my invention with reference to the accompanying
drawings which shew, by way of examples, several modifications thereof adapted
to locks and latches for different purposes.
Figure 1 is a side elevation of a door or gate lock or latch, with the front plate
removed to shew the interior mechanism. The lock is pivoted to the door or gate
by a central stud b, so that it may be turned on the axis thereof to raise the outer
end of the bolt A to disengage it from the catch on the jamb or other part against
which the door or gate closes. This raising up of the bolt may be effected by a
knob on the pin b (if the pin is formed to turn within a bearing in the door), or by
a lifter as in the case of a Norfolk or Suffolk latch, or by a knob on the bolt itself;
in the illustration, however, a thumb-piece 9 is shewn formed out from the hinder
end of the case, upon which the thumb may be pressed down to raise up the outer
end of the bolt. Within a circular-shaped, or partially-circular shaped, portion
of the case, and around the stod b, is placed a circular-shaped plate C, or a
pair of such plates spaced apart from one another and held together by blocks c
(sectioned in for easy identification by dotted lines) forming a frame. The bolt A
enters the case through a straight portion e' thereof, as shewn, and the bolt tail a
is narrowed to pass between the sides of the frame C, or behind the single plate C,
as the case may be. A stump d on the bolt tail projects through gatings formed
in the sides C of the frame, or through a gating formed in the single plate C, as
the case may be; or the stump may be carried by the frame or plate and pass
through a gating in the bolt tail. The frame or plate C is key-gated, as shewn
at e, and is pressed by a spring or springs f, in a direction to engage the stump
with one or other of the upward branches of the gating through which it passes,
when the bolt has been moved into an extreme position either way, and thus
lock the bolt in either its inward or outward position as required. The hole in
the bolt tail through which the stud b passes is slotted to allow of the end way
movement of the bolt. A portion of the forward side of the frame, or of the
plate C, projects forwards into the straight part of the case, as shewn, to
allow for the formation of the gating with which the stump d engages and thus
admit of the circular portion of the case being made small as shewn. The bolt
is moved endways by hand by means of a knob or handle fixed thereto, and
which may be employed also in lifting the bolt. The bottom of the case is
shaped down, as shewn, to receive the key. In order that the key may be
adapted, without having an unusual depth of bit, to turn the frame, or plate C,.
the necessary distance for disengaging the outer end of the gating from the
stump d, the key-gating e in the edge of the frame or plate is formed straight-
sided for the whole depth, instead of being widened out downwards as usual;
and the key bit is formed, as shewn by Figure 1A, with clear spaces (if for
a frame, or with a single clear space if for a single plate) so that the lower
corner of the key gating which is at the time opposite to the side against which
the parts of the key bear will pass under such parts into the clear spaces e
as the key bit is nearing the end of its shoot in either direction. This lock
may be adapted as a fixed lock, by fixing the case rigidly to a door or other
part with which it is to be used. The gating or gatings for engagement with
the stump & may be formed open-ended if desired, as will be obvious. Wher
the bolt is used as a lifting latch, its outer end rests in a catch, and when
moved out for locking it passes behind a staple from which it cannot be with-
drawn by lifting.
In Figure 2, which represents a further modification of a door or gate lock or

page_text: latch, the case is pivoted to the door or gate by a pin 61. The tail a of the bolt A
is narrowed down to pass behind the plate C which is pivoted at b within the case B;
and a studj carried by the bolt tail enters a slot / formed through the upper end of
this plate. The plate C is key-gated at e in the manner of the key-gating e above
described, and carries a lever & of which a gating formed therethrough engages
with the stump d fixed to the case. Figure 24 shews a detached view of the
plate C, and Figure 2" shews a detached view of the lever k. A suitable slot m is
formed through the plate C through which the stump d passes. The bolt tail a is
perforated to allow for the passage and operation of the key. The bolt is moved
by the key, in either direction as required, through the medium of the plate C, and
as the key operates against such plate in position between its fulcrum b and the
studja long shoot is given to the bolt. The bolt is, as will be obvious, locked in
either extreme position endways by the engagement of the lever k with the stump d.
This lock or latch also may be adapted as a fixed lock, by fixing the case rigidly to
the door or other part with which it is to be used. It may also be adapted as a
spring locking latch, by setting the bolt forward by a spring and forming a
longitudinal slot where the stud passes through the turning plate, in which case
the bolt would spring outwards and be locked by shooting forward the plate.
Figure 3 represents a further modification suitable, more especially, as a fixed
lock. In the tail a of the bolt A is formed a vertical slot I, with which a stud j
carried by a circular turning plate C engages. The circular turning plate is carried
within a circular, or partially circular, shaped portion of the case." An opening is
formed through the circular plate C for the passage and operation of the key, and
this plate is key-gated at e, in the manner above described; and a lever k is pivoted
at to the plate and a gating formed therethrough engages with a stump d carried
by the case. As the turning plate is turned by the key the stud causes the endway
movement of the bolt A. An abutments on the plate C comes, when the bolt is
shot out, at the back of the bolt tail and forms a stop against the return of the
bolt, the plate itself being prevented from turning by the engagement of the
stump d within the gating of the lever k. The stud j also itself, when in its forward
position, prevents the return of the bolt, as will be obvious.
Figure 4 illustrates a lock for fixture to a door or other part (though it may be
adapted as a lifting latch if desired). The bolt A (which may pass out of the case
at each end as shewn) has an elongated lug d projecting sideways therefrom.
Within a circular-shaped portion of the case B is fitted a turning plate formed open
in the middle) or ring C having an opening n through one side communicating with
the interior thereof and through which the lug d may pass when the plate or ring
is in the position shewn, and thus allow of the endway movement of the bolt in
either direction, according as the lug is at the time within the plate or ring, as
shewn, or outside thereof. The lower end of this plate or ring projects downwards
into a portion h of the case formed to receive it and also the key; and the lower
edge of this projecting portion of the plate or ring is key-gated at e, in the manner
before described, and is fitted with a gated lever k which engages with a stump d'
carried by the case. The spring o of the lever bears against a stud p carried by
the plate. The bolt may be moved in either direction by hand, and is locked in its
outward or inward position by turning the plate or ring Ĉ to bring a portion thereof
behind or in front of the lug d.
Figure 5 shews the same lock as is shewn by Figure 4, but with this difference,
that the bolt A is locked by turning a lug 9 (shewn by broken lines only, as it
comes behind the plate or ring) into a niche q' formed in the edge of the bolt A.
According to this modification, the bolt may be moved any desired distance
lengthways to withdraw it from and insert it through any number of keeps or straps,
and is consequently specially useful for employment for wide folding entrance gates
and the like.
Figure 6 shews an arrangement of lock or latch specially suitable as a mortice
lock or latch. The case consists of a circular-shaped part B which is put in place
in an opening formed in from the face of the door, and of a cylindrical part' B'.
-

page_text: A central
A
which is put in an opening formed in the edge of the door, and is then screwed, as
shewn, into the part B. The bolt A is constantly set forwards by means of a spiral
spring surrounding a portion f¹ thereof of reduced diameter, as shewn. The bolt
tail a is preferably flat in shape, and is narrower than the diameter of the portion f¹
so as to form a shoulder at the back of such portion f'. The bolt tail a is normally
within the circular portion B of the case, and is fixed at its hinder end, by means
of a screw g', to a head h¹¹ which projects above and below the tail.
studis fixed to the case and passes through a slotted hole in the bolt tail a.
double horn follower is pivoted upon the pin b, and bears at its lower end
against the lower horn h¹ of the head; and a single horn j¹ of a follower k¹ on which
the knobs (or other handles or handle) of the latch are carried, passes down
between the upper horn of the follower and the upper horn of the head;
and thus, if the follower k¹ is turned in one direction, the arm j¹ presses against the
upper horn of the head and draws back the bolt A. against the pressure of the
spring r, and, if the follower is turned in the opposite direction, it presses against
the upper horn of the follower and causes the lower horn thereof to press
against the lower horn h¹ of the head, and so draw back the bolt A. Any
convenient means, however, may be employed for unlatching the bolt. Within the
circular part B of the case is carried a turning-plate C which itself carries a lever
having a gating therethrough which engages with a stump d fixed to the case.
This turning plate and lever (k) is shewn by detached view Figure 6. The lower
edge of the plate is gated at e, and the plate is turned by the key to lock and
unlock the bolt A. The bolt is locked by a part of the plate passing up behind
the shoulder formed at the junction of the part 1 of the bolt with the tail a
thereof; and the plate is retained in its locked position by the engagement of the
lever k with the stump d. The portion B of the case is formed with upward and
downward ears to receive, respectively, the follower k¹ and the key.
The remaining figures illustrate views of locks adapted for use as padlocks,
trunk locks, or hasp locks.
Figure 7 is a view of a lock adapted as a trunk lock (or as a door or gate lock),
in which case it may be fixed to the trunk (or door or gate) and the hasp closed
down thereinto, or it may be carried on the end of the hasp and closed down over a
staple fixed to the trunk (or door or gate); or it may be used as a padlock. The
case is circular, as shewn, and has a slotted opening through the face to pass over
the staple m¹. The rim n¹ is constructed to be capable of being turned in relation
to the other portions of the case. The catch o' is pivoted to the case at b, and is
acted upon by means of a spring, as shewn, in a direction tending to press it into,
and maintain it within, the staple m¹. The outer end p¹ of the catch of engages
with the rim ¹ of the case so that as the rim is turned, in the direction of the
arrow, the catch is turned upon its pivot band withdrawn from the staple m'. The
rim, when released, is automatically returned into its normal position, as shewn, by
the reaction of the spring. Figure 7 shews the catch o¹ to be locked in position by
a turning plate C, which is shewn in its unlocked position by Figure 7. The
plate C is key-gated, and carries a lever k which engages with a stump d.carried
by the case, the catch o¹ being locked by turning the plate into the position shewn
by Figure 74, in which its upper edge is shewn as immediately underneath the
lower side of the catch o¹.
Figure 8 illustrates in elevation, and Figure 9 in transverse section taken on
line of Figure 8, a trunk lock which it is convenient to carry on the end of a
hasp, but it may be used in other ways and for other purposes as will be apparent.
The case is circular, and a turning plate C turning, preferably, on a central pin b,
is carried therein and itself carries a lever k which is gated to engage with:a
stump d carried by the case. The plate C is key-gated so that it may be turned
by the key. Notches are cut out of the edges of the plate on opposite sides
thereof, and corresponding openings are cut out of the sides and face of the case,
and the lock is fixed in place by passing such niches and openings over inwardly
projecting lugs carried by the trunk, and then turning portions of the plate C

page_text: behind such lugs. The plate is securely held in its locked or unlocked position by
the engagement of the stump d with the gating through the lever k.
In
Figure 10 is a very similar lock to that last described, but in this case the
turning plate C carries a pair of lugs t¹ which, as the plate is turned, pass under
undercut ends of a staple m fixed to the trunk or other part to which the lock is to
be fastened. This staple is passed through a slot in the face of the case.
lieu also of the lever k, a sliding plate k, guided by pins u, is employed, though a
lever may of course be used if preferred. The sliding plate k is itself gated, as
shewn, for engagement with a stump d carried by the case, and the turning plate C
is key-gated that it may be turned by the key.
Figure 11 illustrates a padlock having a circular case and an open-ended slot to
to receive the staple. The bolt or shackle e, for engagement with the staple, forms
part of a turning plate C which fits easily within the case and turns, preferably,
upon a central pin b. This plate is key-gated, as shewn at e, and carries a lever k
which is gated to engage with the stump d carried by the case.
It will be seen
that the lever is carried out from its pivot to near the circumference of the case,
and that the gating is formed near the outer end of such lever. The purpose of
this is to give as great a leverage as convenient against any attempt to force back
the bolt v.
A. projection is formed on the plate C as shewn, and when the plate
has been turned back, to unlock the shackle, the part closes in the opening in
the side of the slot w into which the nose of the shackle is shot in locking the
staple, and prevents dirt or wet getting therethrough into the case.
Several of the turning plates C above described are circular, or approximately
so, and turn within correspondingly-shaped cases, or correspondingly-shaped
portions thereof. In such circumstances the plates would, of course, be kept in
position by the circular shaped case or circular shaped portion thereof in which
they are carried, but to avoid friction it is preferable that such plates shall turn on
central pins b as described in one or more of the instances.
In place of a single turning plate C, as described in several of the modifications,
two or any number of such plates may be used if desired, one behind the other, to
increase the security of the lock or latch; and the same remark applies to the gated
levers.
In case of the lifting locks or latches above described, the forward ends of the
bolts of course pass through guides or keeps.
Tumbler instead of lever mechanism may of course be used for the locks and
latches above described, if desired.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. In a lock or latch, the combination of a sliding bolt with a turning frame or
plate which is key-gated and which is also either gated to engage with a stump
carried by the bolt-tail or itself carries a stump which engages with a gating in the
bolt tail, substantially as described for the purpose set forth.
2. In a lock or latch, the combination of a sliding bolt entering through a straight
portion of the case, with a turning frame or plate mainly of a circular shape and
fitting easily within a correspondingly-shaped portion of the case, such frame or
plate being key-gated and also either gated to engage with a stump carried by the
bolt tail or itself carrying a stump which engages with a gating in the bolt tail,
substantially as described for the purpose set forth.
3. In a lock or latch, the combination of a sliding bolt entering through a straight
portion of the case, with a turning frame or plate mainly of a circular shape and
fitting easily within a correspondingly-shaped portion of the case, such frame or
-plate being key-gated and also either gated to engage with the stump carried by the
bolt tail or itself carrying a stump which engages with a gating in the bolt tail, a
portion of the frame or plate projecting into a part of the case which leads out from
the circular shaped part thereof, and the gating or a portion thereof to engage with

page_text: the stump being formed in such projecting part of the frame or plate, or the stump
itself being carried by such projecting portion, substantially as described for the
purpose set forth.
4. The general combination and arrangement of parts forming a lifting latch for
a door or gate, or modified as described for use as a fixed lock, substantially as
described with reference to Figure 1 of the drawings herewith.
5. In a lock or latch, the combination of a sliding bolt with a turning piece
pivoted within the case and engaging through the medium of a stud and slot with a
sliding bolt, said turning piece being key-gated and carrying also a gated lever
which engages with a stud fixed to the case (or provided with tumbler mechanism
as described), substantially as described for the purpose set forth.
6. In a lock or latch, the combination of a sliding bolt with a turning piece
pivoted within the case and engaging with a bolt through the medium of a stud and
slot, said turning piece being key gated between its pivot and the point of its
engagement with the bolt, and carrying also a gated lever which engages with a
stud fixed to the case (or provided with tumbler mechanism as described),
substantially as described for the purpose set forth.
7. The general combination and arrangement of parts forming a lifting latch for
a door or gate, or modified as described for use as a fixed lock, substantially as
described with reference to Figures 2, 24 and 2B, and in a modified form also, more
especially as a fixed lock, with reference to Figure 3 of the drawings herewith, for
the purpose set forth.
8. In a lock or latch, the combination of a sliding bolt provided with a suitable
lug, with a turning plate or ring having an opening formed through one side thereof.
through which the lug slides as the bolt is moved inwards and outwards, said plate
being suitably key-gated and carrying a lever which engages with a stump fixed to
the case (or provided with tumbler mechanism as described), all substantially as
described for the purpose set forth; and, also, the alternative arrangement for a
lock in which a niche is formed in the edge of the bolt to receive a tongue or lug
carried by the plate or ring, substantially as described for the purpose set forth.
9. The general combination and arrangement of parts forming. a lock or latch,
substantially as described with reference to Figure 4 of the drawings herewith, for
the purpose set forth.
10. The general combination and arrangement of parts forming a lock,
substantially as described with reference to Figure 5 of the drawings herewith, for
the purpose set forth.
11. In a spring latch lock, the combination with a sliding bolt having a
shouldered portion near the rear thereof, of a circular shaped turning plate carried
within a circular shaped portion of the case and itself carrying a gated lever which
engages with a stud fixed to the case (or provided with tumbler mechanism as
described), said plate being operated by the key to bring a portion thereof behind
the shoulder of the bolt when it is desired to lock the latch, the bolt being capable
of being unlatched, preferably or conveniently by turning a handle in either direc-
tion, which operates through the medium of a follower which bears as it is turned
in one direction against a head upon the bolt tail and in the other direction against
a follower the opposite end of which bears against the head, substantially as
described for the purpose set forth.
12. In a latch lock, a portion of the case formed to contain the mechanism which
locks the bolt, and the remaining portion thereof formed to receive the main length
of the bolt, the portions being so constructed that the first mentioned portion may
be put in through an opening formed in the face of a door and the other portion
through an opening formed into the edge of the door and be then screwed or other-
wise fixed to the first mentioned portion, substantially as described.
13. The general combination and arrangement of parts forming the spring latch
lock, substantially as described with reference to Figures 6 and 64 of the drawings
herewith, for the purpose set forth.
14. A lifting latch or lock, consisting of a case carrying the inner end of a sliding

page_text: bolt and suitable mechanism for locking same, and itself pivoted to the door or
other part with which it is to be used, so that it may be turned on the axis of such
pivot to lift the bolt, substantially as described.
15. In padlocks, movable parts formed to engage with parts separate from the
locks and which enter the cases through openings formed in faces or edges thereof,
substantially as described.
16. In trunk locks, padlocks, or hasp locks, locking turning plates for engage-
ment with parts separate from the locks and which enter the cases through openings
formed in faces or edges thereof, substantially as described.
17. In a trunk lock, padlock, or hasp lock, the combination with a rim capable
of being turned in relation to the case and with a slot or opening through which a
staple or link enters a face of the case, of a lever pivoted in position to be turned
into such staple to fasten the lock thereto, with means by which, as the rim is
turned in one direction, the lever is drawn out from the staple, and with means by
which such lever may be locked within the staple, substantially as described.
18. In a trunk lock, padlock, or hasp lock, the combination of a key-gated
turning plate carrying a gated lever which engages with a stud fixed to the case
(or provided with tumbler mechanism as described), with openings formed in the
turning plate and in the case to receive projecting lugs fixed to the part with which
the lock is to be engaged, said turning plate being operated to pass behind such lugs
and lock them within the case, substantially as described; and the alternative
arrangement in which a slot is formed in a face of the case to pass over a staple
having undercut ends with which parts of the turning plate engage to lock the
staple, substantially as described.
19. In a padlock, a key-gated turning plate carrying a lever gated to engage
with a stump fixed to the case (or provided with tumbler mechanism as described),
said plate having a bolt or shackle thereon which, as the plate is turned in one
direction, shoots across the top of a slot formed down in the case to receive the
staple, said bolt or shackle passing through an opening in one side of the slot, and
shooting into an opening in the other side, and the said plate being formed,
preferably, with a portion which when the bolt or shackle has been turned back
enters within and fills up the opening into the case on one side of the slot while the
end of the bolt or shackle fills up the opening on the opposite side thereof, all
substantially as described for the purpose set forth.
20. The general combinations and arrangements of parts forming the several
modifications of trunk locks, padlocks, and hasp locks, substantially as described
with reference to Figures 7 to 11 inclusive of the drawings herewith, for the
purpose or purposes set forth.
Dated this 17th day of April 1891.