US1428455A - Lock - Google Patents

Description

Patented .Sept. 5, 1922.

nears stares PATENT QFFIQE.

FRANK SOLEY, or rnrnennnrnra, PENNSYLVANIA, Assrenon TO THE MILLnn'LocK COMPANY, or rnrnnnnnrnm, rnnnsvnvanl'a, a oonronarron or PENNSYL- VANIA.

LOCK.

Application filed September 30,'1e21. Serial No. 504,296.

To aZZ 107107771 it may concern:

Be it known that I, FRANK SoLnY, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Locks, of which the following is a specification.

My invention relates to certain improve ments in locks of the type known as cupboard or draw locks.

One object of the invention is to simplify the construction of locks of this type and to construct the wards so that they can be readily shifted to make the necessary key changes.

A further object of the invention is to make the wards in the form of disks, which can be placed on a pivot pin.

In the accompanying drawings:

, Fig. 1 is a plan view of my improved lock with the top plate removed;

Fig. 2 is a sectional view on the line 2-2, Fig. 1

Fig. Fig. 1;

Fig. 4 is a perspective view of the bolt;

Fig. 5 is a perspective View of the tumbler;

Fig. 6 is a perspective view showing three of the disk wards;

Fig. 7 is a perspective view of the spring;

Fig. 8 is a perspective view of the key hub;

Fig. 9 is a view of a modification showing the invention used in connection with another type of ward; and

Fig. 10 is a-view showing a combination of the two wards illustrated in Figs. 1 and 9.

Referring to the drawings, 1 is the casing 3 is a sectional view 011 the line 33,

of the lock, which is pressed up from sheet metal, in the present instance. Formed integral with this casing are the side plates 2 and 4 is the cover plate, which is secured to the casing of the lock in any suit able manner. In the present instance, the cover plate is notched to receive lugs onthe casing and is also perforated for the passage of screws. In the casing are two studs, or .pi1nS, 5 and 6, on which the bolt 7 is mountslot 9, as clearlyshown in Fig. 1. The pin 5 is the pivot pin for the tumbler 10,'Fig. 5, which has a lateral projection 11 that extends into a notch 12 in the upper edge of The pin 5 projects through a slot 8 in the bolt and the pin 6 projects through a the bolt 7 for med by a lip 13 so that, when the tumbler is raised, the bolt can be shifted by the key and the projection 11 of the tumbler will drop backof the'lug 13 of the bolt, holding the bolt in the projected position.

A springlt mounted on a pin 15 bears against the casing and also against the proj ection 11, holding the projection yieldingly in the notch 12 on one side of the lug 13, or in thenotch 16 on the opposite side of the lug. The pin 6 limits the downward movement of the tumbler, and the key hub 17 is so located in respect to'its tumber'and the bolt'that a key inserted in the tumbler and turned will first raise the tumbler and move the bolt into the projected or the retracted position. A stop lug 18 on the bolt 7 limits the projection of the bolt.

Mounted on the pin 5 is a. series of wards 19, 20 and 21. These wards are in the form of disks and, in the present instance difier in diameter. The ward 19 is larger than the ward 20. and theward 21 is smaller than the ward 2.0. These wards are so arranged in respect to the key hub 17 that they will extend into the notches in the key, and when the proper key is inserted in the lock it can be turned clear of the ward disks and will operate the bolt.

A key change can be made by shifting the position of the wards on the pin 5. While three wards are shown, a single ward maybe used, ormore than three.

In Fig. 9 a modification is shown, in

which the wards instead of being in the.

form of disksare in the form of notched bars 19 ,20 and 2'1,,which fit over the two pins 5 and 6.

In Fig. 10 is shown a combination of the disk wards illustrated in Fig. 1 andthe bar wards illustrated in Fig. 9. i i

The cover plate 4 is pressed up, as shown in Fig. 2, to receive the flanged portion 20 of the key hub 17. The opposite end ofthe key hub, is reduced so as to project through the opening 21 in the casing 1. This arrangement tends to hold the key hub in properalignment.

By the above constructiom'it will be seen that I am enabled to make alock in which all of the parts canbe stamped and cut into shape, and in which a number of key changes can be made.

1 claim:

1. The combination in a lock, of a casing having two pins; a bolt arranged to slide on said pins; a tumbler pivoted on one pin and arranged to engage the bolt either in its projected or retracted position; a spring tending to press the tumbler in engagement With the bolt; a ward mounted on one of the pins; and a. key hub mounted in the lock in such a position that a key inserted in the hub will move the tumbler and shift the bolt.

2. The combination in a lock, of a casing; two pins projecting from the casing; a bolt slidably mounted on the pins; a tumbler arranged to engage the bolt; a spring for yieldingly holding the tumbler in engagement with the bolt; a series of disk Wards mounted on one of the pins; and a key hub mounted in the casing in such position in respect to the Wards and the bolt that a key located in the key hub and turned Will en gage the tumbler and the bolt.

3. The combination in a lock, of a casing; a bolt; a tumbler for holding the bolt in its projectedor retracted position; a key opening in the lock casing; and a series of disks forming Wards and arranged to project in the path of the key. I

FRANK SOLE Y.

Images