US1519070A - Latch lock - Google Patents

Description

' bec. 9, 1924.

' F. SOLEY LATCH LOCK Filed Jan. i10, 3,925

il@ w VIII/lll Patented Dec.. 9, 1924.

UNiTED STATES PATENT OFFICE.

.FRANK SOLEY, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO :MILLER LOCK COM- FANY, GF PHILADELPHIA, FENNSYLVANIA, A CRPORTION OLT PENNSYLVANIA.

LATCH LOCK.

Application filed January To all whom 'it may conce/Mz.'

Be it known that I, FRANK SOLEY, a. citizen oi' the United States, residing in Philadelphia, Pennsylvania, have invented certain .improvements in Latch Locks, of which the .i'oliowing is a specification.

rlhe object of my invention is to improve the construction of latch locks by providing a tumbler that will loch the bolt in the projected position when it is moved by turning the key a given distance, and which will be moved clear ot the bolt when the key is turned fully to withdraw the bolt. When the tumbler is in the last mentioned posir tion, the bolt becomes spring latch that can be operated independently of the key by retractino' a pin projecting through a slot in the cover plate of the lock.

The invention is especially adapted for use as a locker lool; when it is desired to arrange the locking mechanism so that the bolts can be retracted without the use of a. key, and which can be locked by turning the key to a given position.

In the accompanying drawings:

Fig. 1 is a perspective view of my improved latch lock;

Fig. 2 is a view of the lock with the cap plate removed, showing the tumbler` locking the bolt in the projected posit-ion;

Fig. 3 is a View, similar to Fig. 2, showing the tumbler raised free of the bolt, allowing the bolt to be used as a latch;

Fig. 4 is a sectional plan view on the line #-4, Fig. 2;

Fig'. 5 is a transverse sectional view on the line 5 5, Fig. 2; and

Figs. 6 to 9, both inclusive, are detached perspective views of parts of the lock.

Referring to the drawings, 1 is the casing of the lock, which is made of sheet metal in the present instance. 2 is the cover plate, which is secured in position in the ordinary manner. 3 and 4 are studs projecting into the casing. 5 is a sliding bolt, beveled at the outer end, as shown in Fig. 6. This bolt has a rear slot 8 through which the stud 4 eX- tends, and a forward slot 7 communicating with a recess 8 in the lower edge of the bolt. The rear wall of the recess is shaped to be engaged by a lrey so that, on turning the key in one direction, the bolt can be retracted. A spring 9 acts to project the bolt. This spring is mounted on a post 10. One arm 10, 1923. serial No. @11m/2.

of the spring rests against a lug 1l on the bolt and the other arm rests against the wall of the casing.

12 designates a key hub made as shown in Fig. 9 and slotted Jor the recept-ion of a lat key. 18 designates a tumbler (Fig. 7) having a slot 14 at its forward end for the stud 3, on which it is pivoted. A heel 15 at its rear end, which, when the tumbler is in the position shown in Fig. 2, rests against the stud 4;, which acts as a. fixed stop. On

the upper edge oi the tumbler is a lateral` projection 16 that extends over the upper edge of the bolt. iVhen the tumbler is in the position shown in Fig. 2, the projection 16 rests back of a shoulder 17 on the bolt, preventing the withdrawal oit the bolt. Then the tumbler is raised and is moved back by the key, it rests on the top of the stud 4, which holds the projection 16 clear of the bolt. A spring 18, mounted on the post 10, has one arm that rests against the upper edge ci' the tumbler 13, and another arm that rests against the wall of the casing, as shown in Fig. 2. This spring holds the tumbler in either oi its two positions.

Projecting from the lower edge ot the tumbler in advance or the key hub vis an extension 19 that is in the path of. the key when the tumbler is in the retracted position, Fig. 8. Vihen the key is turned to engage the extension 19, it nio-ves the tumbler forward, and the spring 18 forces the tumbler in front of the stud 4, which acts as a stop, and, as the bolt is in the projected position, the projection 16 rests back of the shoulder 17, holding the bolt against movement until the key is turned to raise the tumbler clear olf the stud 4iand iiorce it back so that it rests ou the stud, the bolt, in the meantime being withdrawn by the key.

On the bolt 5 is a pin 20, which `projects through a slot- 21 in the cover plate 2. The bolt can be withdrawn by lmanipulating the pin without using the key. when the parts are in the position shown in Fig. 3.

On the stud 3 are two disks, which iorm wards, the key bein out to receive the wards. It will be iniderstood that hey changes can be made by shifting the wards. or by changing their diameters, and that a single ward may be used, or a series ot wards, dependingl upon the lock. Vlfhile the wards are shown in the form of disks, other wards may be used without departing from the main features of the-invention.

I claim:

1. The combination in a lock, of a. casing having two studs; a bolt arranged to slide on saidstuds; a tumbler arranged to slide on one stud and to rest in 'front of the other stud, or on top of' the said other stud, the tumbler engaging the bolt when in the iiret mentioned position to look it against movement; a key; and means, independent o'lthe key, for retracting the bolt.

2. The combination in alock, of a casing having two studs; a bolt arranged to slide-A in the casing; a tumbler arrangedV to slide on one stud and to rest in front of the other stud, or on top of the latter Stud, the tumbler having/'a projection arranged to engage the bolt when the tumbler is in the `first mentioned position; and-means, independent ot the key, .for retraeting the bolt.

3. The combination in a lock, of a casing, a bolt arranged*y to slide in the casing; a stud on the teasing; a tumbler arranged to slide and turn on the stud and to engage the bolt whenin its forward position; and a hired stop on the casing to hold the tumbler against rearward movement when said tuinbler is inthe 'forward position, the tumbler beingvraised lclear, of the bolt and the fixed stop when :actuated krby a key, said bolt havranged to slide on one stud and to rest upon, Y

or in t'ront of, the other stud, said tumbler `being shaped to be engaged by a key to move it forward, or to spring tending. to mgly; a spring for raise and retract it; a hold Athe tumbler yieldprojecting the bolt; and

an operating pm on the'Y bolt, the-"casing -f being slotted for the passage lof the pin, f

a slottedl The combination oic a casing;

cap plate;- a key hub a slid-ing bol-t having` Atwo slots therein; two studs projerti-ng from the casing and through the slots in the bolt i lug andan operatingpin-on the bolt, the pin extending through the slot in the cap plate; a slottedtumbler:mounted on theorward stud and having a progection arranged to drop backot the lug on the bolt'and also lmving a forward extension, the tumblerbeing shapedto be engagedfby a key-in the-v ley h1 rb which A raises Aand -retraots it; .a

spring 'tor projectingthe bolt; a spring restv ing on the upper edge. of the tumbler to hold it yield-ingly 1n position; and a ward on one of the studa FRANK SOLEY..

Images