Year: 1890

page_text: Date of Application, 16th Sept., 1890-Accepted, 18th Oct., 1890
case, showing one of the dummy pins in position.
operating pins in detail.
This aga
Fig. 7 is a transverse section taken about centrally through the lock as it is
adjusted for use.
Fig. 8 is a view of the bolt-operating plate.
Fig. 9 is a view of the guard plate.
Fig. 10 is a view of the separating plate or washer, and
Figs. 11, 12, 13, and 14 represent the lock adapted to use in connection with a pad-
lock, showing respectively the padlock in perspective with its case partially removed;
the padlock in side elevation with case partially removed; the same in transverse
section, and a partial front view.
Figs. 15, 16, 17 and 18 show a modification of detail.
Figs. 1 to 10 inclusive show the application of the lock to a knob latch, and the
remaining figures show its application to a padlock.
While the construction is
particularly well adapted to such forms of latch and lock as are herein illustrated, it
is necessarily limited to such forms, but may be applied successfully to bolt-locks in
general:
A represents the lock casing, which may be of the well known rectangular form
shown, or it may assume any other suitable form adapted to house the operative parts
of the lock. The casing A may be received in a suitable mortise in the edge of a
door B, as shown, or it may be secured to the side of a door in the ordinary manner.
Within the casing A, and secured to rock with a spindle C extending transversely
therethrough or therein, as the case may be, is a bolt operating plate D, preferably of
circular form throughout the whole or a part of its periphery, and provided with
recesses d at intervals along its edge, and having a loose connection with a reciprocating
sliding bolt E.
In the knob latch construction shown, there is a guard plate F located loosely on
the hub of the operating plate D, between the plate D and the bolt E, and secured
against rotating or rocking with the plate D by means of an arm projecting from
its periphery, and engaged in a slot or recess in the casing A (see Fig. 3).
The guard plate F is provided with recesses f¹ on its periphery, which correspond
T

page_text: with the recesses d on the operating plate, when the latter is in its normal or locked
adjustment, the said recesses serving to receive and stead the ends of the locking and
releasing pins. The guard plate F is further provided with two curved slots f², located
on opposite sides of its axis, through which pins d' set in the face of the operating
plate D project into engagement with the sliding bolt. A separating plate or washer G
is inserted between the guard plate F and the sliding bolt, to compensate for any
variation which may exist between the planes of the face of the guard plate and
the adjacent face of the bolt, and also to allow the bolt to slide freely and to take
up wear.
The bolt E slides through an opening in the face plate a of the lock, as is usual,
and at its inner end is divided in two branches e and e¹. The branch e turns into
engagement with one of the pins d¹, and the branch e¹ turns into engagement with the
other pin d¹, and projects thence away from the axis of the operating plate into
engagement with the end of a spring H, which tends to hold the bolt normally
advanced, and its branches e and e¹ in contact with the pin d¹.
The casing A, on the side adjacent to the operating plate D, is provided with a
series of perforations a¹, corresponding to the recesses in the periphery of the plate D,
and the said casing is further preferably reinforced within the limits of a circle the.
circumference of which extends through the said perforations a¹, as shown at K, Fig. 2,
the same serving as a guide to keep the locking and releasing pins in position to slide
steadily through the casing into and out of engagement with the operating plate.
The reinforcing may be accomplished by thickening the casing at that portion, or by
the attachment thereto of a disc as may be found desirable. The pin supporting case
consists preferably of a circular cap plate L, having secured to its under or inner side
an annular flange or rim l, adapted to rest against the side of the casing A, and surround
the series of perforations a¹. If the lock be inserted in a mortise, the flange l would
be of such width as to extend through the side of the door into contact with the
casing, and leave the cap plate L about flush with the outside face of the door
(see Fig. 1).
The
cap plate L is provided with screw holes ¹ for securing it in position.
· Pins M are seated in perforations in the cap plate, in position to register with the
perforations a¹ in the casing, and are held at the outer limit of their movement by
means of springs N secured thereto, and to the under side of the cap plate. The form
of spring which I employ consists of a spring wire coiled at its middle portion in a
plane transverse to that of the cap plate, one end being secured to the pin, and the
opposite end of each between the cap plate and an annular plate O secured to its under
side. The several pins M, as far as they are exposed to view, are identical in
appearance. In fact, however, three, more or less, of the pins, those corresponding to
the numbers 4, 9, and 11, for example (see Figs. 1 and 4), project normally into
engagement with the recesses in the periphery of the operating plate D, and prevent the
same from turning, and hence hold the bolt locked adjustment, while the remainder
of the pins, which I call for convenience dummy pins, stop short of the operating
plate, and do not affect its movement, unless pressed upon, when any one or more of
them will engage the recess or recesses in the operating plate, and prevent it from
turning.
The three; more or less, locking pins above referred to, are each provided with a
recess m, a short distance from their ends, which, when the pins are simultaneously
depressed, will allow the operating plate D to rotate.
It needs therefore but to know to what numbers or letters the locking and releasing
pins belong, to enable a person to unlock the door.
The locking and releasing pins may be readily interchanged with the dummy pins,
by simply disengaging the end of the spring N therefrom, the engagement of the
spring with the pin being conveniently effected by passing the end of the wire
into or through a perforation in the spring, the wire thereby serving as a stop to limit
the outward movement of the pin. Thus, the combination may be changed whenever
desired.
In order to avoid the inconvenience which would arise in case one of the locking

page_text: and releasing pins of the combination were located on the opposite side of the knob
spindle from the others, a spring finger P is provided, loosely mounted on the spindle,
in position to be swung into engagement with any pin desired, its spring tension
being such, that when engaged with a pin, it will depress it. Several such fingers
might be provided, if found desirable, to make the combination more complicated.
In the padlock construction, the pins are supported in one of the side casings I
of the lock, and the operating plate R corresponding to the operating plate D above
described has an extension r engaged with the spring-actuated sliding bolt S. The
spindle may be here formed integral with the plate R, and a thumb piece T be
either permanently or detachably engaged with the plate, to rock it.
If preferred, a sleeve h, as shown in Fig. 17, may be placed on the pin M.
The said sleeve is provided with an arm h¹ projected therefrom at one end, and
a recess h³ at the other end. A sleeve is provided, having an outwardly
projected arm / similar to arm h¹, except that underneath said arm is provided
a shoulder h. This sleeve corresponds in service with the herein before mentioned
dummy pins.
There may be any desired number of the long locking and releasing pins herein-
before referred to, the short sleeves operating in a manner similar to the dummy pins.
The sleeve h, when carried in by the inward movement through the perforation a¹ in
frame plate A, having recess ³ provided therein, as shown, would not hold the
plate D against rotation, but if either one of the short or the duminy sleeves are
pressed in, the end thereof would pass into the recess d, and thereby lock the plate D
against rotation, and thereby arrest the movement of the bolt E.
A plate F¹ is provided similar to plate F, but smaller, the periphery of which
passes clearly inside of the circle formed by the sleeves, said plate having about
its periphery a series of recesses k², corresponding with the position and number
of sleeves h. The plate F¹ is secured against longitudinal movement on the spindle C.
The operation is similar to that heretofore described. Fig. 1 shows the normal
position of the parts when the bolt is locked, the end of sleeve / resting in the
recess d in plate D, the pins d' engaging the branches e e¹ of the bolt E, a spring h³
to hold the pins as shown in Fig. 15, the sleeves being held against the pin by the
springs k, as shown in Fig. 16, will remain where placed by the movement of the pin,
the springs he resting on the end of the sleeves, and when the pin is released, the
spring will carry the pin back to position shown in Fig. 15, with the ends of the
sleeves h resting in recesses d. When it is desired to hold the dummy sleeves out of
engagement with the plate D, the plate F¹ may be turned to bring the spaces k² under
the shoulders, or the plate may be set to allow the shoulder he to pass into the
recesses ², the end of the sleeve then resting in the recess d in plate D, either
one of which sleeves will lock the plate D against rotation, to move the bolt E. To
restore the parts to position shown in Fig. 15, the plate F¹ is moved outwardly by
the spindle C, the arins h¹³ resting on the plate, which is restored to its normal
position by the spring . To release the bolt E, press in such pins as have on them
the long sleeves h; the recess h³ registering with the periphery of the plate D, the
latter will pass through the recess or notch h³.
To change the combination, the sleeves are made interchangeable with the short
sleeves h*.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a lock, the combination with a spindle, a spring actuating sliding bolt, a
rocking plate fixed to rock with the spindle, a guard plate between the rocking plate
and the bolt, loosely mounted on the hub of the rocking plate, and held against a
rocking movement, the rocking plate and the guard plate having corresponding
recesses in their peripheries, and the rocking plate having operating pins extending
from its side through slots in the guard plate into engagement with the bolt, of
reciprocating pins, a portion of the pins having a normal engagement with the rocking

page_text: plate, and another portion held out of engagement therewith, substantially as described
and for the purpose set forth.
2. In a lock, the combination with a series of reciprocating locking and releasing
pins, of a spring finger loosely mounted in position to be swung into engagement with
one or another of the pins, to hold it depressed, substantially as described, and for the
purpose set forth.
3. In a lock, the combination of the locking and releasing pins, of a sleeve h having
an outwardly projected arm, and a recess h³, said sleeve adapted to slide on and
with said pin, to lock and release the rocking plate, substantially as described and for
the purpose set forth.
4. In a lock, the combination of the pin herein before described as a dummy pin,
of a sleeve having an arm h and shoulders hº, said sleeve to slide with and on said
pin, substantially as described and for the purpose set forth.
Dated this 8th day of Sentember 1800.
NEWTON & SON,
Agents for the Applicant.