US1374793A - Lock - Google Patents

Description

J. WOJCIK.

LOCK.

APPLICATION FILED NOV. I2. I920.

Patented Apr. 12, 1921.

2 SHEETS SHEET I.

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J. WOJCIK.

LOCK.

1,374,793 APPLICATION FILED NOV. 12, 1920. Patented Apr. 12,1921.

2 SHEETS-SHEET 2- FIG. 3

FIG. 4,

FIG. 5.

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UNITED STATES JOHN WOJCIK, OF CHICAGO, ILLINOIS.

LOCK.

Specification of Letters Patent.

Patented Apr. 12 19 21.

- Application filed November 12, 1820. SeriaI No. 423,579.

To aZZwkom it may concern. 7 y Be it known that I, JOHN WoJoIK, citizen of Poland, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Locks, of which the following is a specification.

This invention relates to certainnew and useful improvements in looks and has for one of its objects to provide a sliding gravity bolt within the lock easing -adapted for engagement with a keeper bolt when the same is in its lowered closed position. I

A further Object of the invention is to provide a lock embodying a gravity bolt slidable within the casingand adapted to be elevated through the medium of a key inserted within the lock casing while a gear within the lock casing is adapted to have rack teeth of .the gravity bolt moved into engagement therewith for sliding the bolt within the casing to move the same to its released position.

lVith the above and other objects in view, the present invention consists in the novel form, combination and arrangement of parts hereinafter more fully described in connection with the accompanying draw-I ings, in which like reference characters indicate similar parts throughout the several views.v

In the drawings, V

Figure l is a fragmentary elevational view of a portion of a door and frame with the present improved lock operatively positioned thereon, V

Fig. 2 is a view similar to Fig. l with the lock casing removed showing the sliding gravity bolt with the bolt elevated in dotted line positions for engagement with the shifting gear,

Fig. 3 is a cross sectional view taken on line III-III of Fig. 2 showing the rotatable gear for shifting the slidable gravity bolt 4 is a cross sectional view taken on line IV-IV of Fig. 2 showing the key elevating the bolt to engaging position with the shifting gear,

Fig. 5 is a perspective view of the gravity sliding bolt removed from the casing,

Fig. 6 shows views of the key for elevatin the sliding bolt, and

jig. 7 shows views of thekey for rotating the gear shifting the sliding bolt.

iReferring more in detail to the accomto the outer side of panying drawings, there is illustrated the P01131011 of a door 1 andframe 2 upon the innerface of which door a lock casing 3 is mounted while a keeper casing 4 is mounted upon the door frame 2 and secured thereto by a bolt 5 extending through the casing anddoor frame. The lock casing 3 is secured to the door 1 by transverse bolts 6 and upper and lower bolts 7 at the swinging end of the door, a face plate 8 being secured v the door as shown in Figs. 1 and 3. f

A gravity sliding bolt of the type more clearly shown in Figs. 2 and'5 embodies a body portion 9 having ahook nose 10 at its forward endwhile the upper edge thereof is provided with a series of rack teeth 11. A pair of elongated openings 12 is provided in the bolt body 9 with an upwardly directed oifset recess 13 at the rear ends thereof." The bolt 9 within thecasing 31s supported on the transverse supporting bolts 6 as shown in Fig.2. 7

The lower wall of the casing 3 is provided with a downwardly directed arcuate extension 14 through which an anglekey opening 15 extends. For elevating the bolt within the casing, the key shown in Fig. 6 is employed, the same embodying a fingergrip 16 having a shank 17 with angularly ex-,

atter' tending head portions 18 and 19, the being notched at its edge as at 20'as clearly shown in Figs. 1 and 6. .When the bolt 9 is inthe' position 'shown in Fig. 2, the same is at its limit of downward movement with the transverse bolts 16 received in the slot recesses 13 while the hook nose 10 is in engagement with the bolt 5 in the keeper casmg 4;. v When the key 16 is inserted through the key slot 15 and rotated the head portion 19 thereof is projected to cause the notched a rectangular bore within'which the ke 24 shown in Fig. 7 is adapted to be inserte for rotating the gear. The door 1 is provided with an opening 25 to facilitate insertion rack teeth 11 of the bolt are moved into en- 1 gagernent with the gear 21, and by rotating the gear in the desired direction, the bolt is shifted in a similar way either to withdraw the bolt into the casing 8 or proj eot the same into the keeper casing 4.

A key hole guard is associated with the key openin 15 extending through the face plate 8 of tne door 1 and embodies anangle bracket 26 and a swinging plate 27 having cooperating flanges 28 through which the shackle 29 of a padlock extends, thereby closing the key opening 15 as shown in big. 1;

Assuming that the sliding gravity bolt is in the locked position shown in Fig. 2, and it being desired to free the same from engagement with the keeper bolt 5, the key 16 is inserted in the opening 15 and rotated to cause the angle head 19 thereof to engage the lower edge of the bolt to elevate the same to position the attaching bolts 6 within the elongated openings 12. The key 24 in serted into the bearing 28 of the gear 21 is rotated and by meshing with the rack teeth 11 upon the sliding bolt the bolt 9 is withdrawn into the casing 3. In shifting the bolt to locked position, the key 16 may be withdrawn from the casing 3 and the rack gear 21 rotated to project the bolt from the casings) and when the oliset recesses 13 01": the openings 12 are positioned over the bolts 6, the sliding bolt 9 will drop by gravity with the hook nose 10 thereof engaging the keeper bolt 5 while the bolts 6' are received in the bolt recesses 13., The padlock 29 associated with the guard plate 27 prevents the operation of the lock from the outer side of the door without first exposing the key hole. 7

While there is herein shown and described the preferred embodiment of the invention, it is nevertheless to be understood that minor changes may be made therein without departin from the spirit and scope of the invention as claimed.

"Nhat is claimed as new is:

1. A lock of the type described comprising a casing, a gravity sliding bolt mounted therein, said bolt having elongated slots and 2 upper edge of said bolt and a rotatable gear carried by said casing adapted for engage 'znent with the bolt rack teeth for shifting the bolt within the casing.

2. A look of the type described comprising a casing, a gravity sliding bolt mounted therein said bolt havin elongated slots and oilset recessescommunicating with the slots,

transverse bolts carried by the casing for supporting the bolt and extending through said slots, a key for elevating the sliding bolt to position the transverse bolts in the elongated slots, rack teeth "t med on the upper edge of said bolt a rotatable gear carried by said'casing adapted for engagement with the bolt rack teeth for shitting the bolt within. the casing, a tubular bearing for said gear and akey inserted within said bearing for rotating the same.

3. A lock of the type described comprising a casing, a gravity sliding bolt mounted therein, said bolt having elongated slots and offset recesses communicating with the slots, transverse bolts carried by the casing for supporting the bolt and extending through said slots, a key for elevatin the sliding bolt to position the transverse bolts in the elongatedslots, rack teeth. formed on the upper edge of said bolt, a rotatable gear carried by said casing adapted for engagement with the bolt rack teeth for shifting the bolt within the casing, a tubular bearing for said gear, key inserted within said bearing tor'rotating the same and a hinged guard plate overlying the key opening through which the key is inserted for elevating the sliding bolt.

a. A look of the type described comprising a casing, a gravity sliding bolt mounted therein, cooperating means carried by the bolt and casing for holding the bolt in locked position means for elevating the bolt to render ineii'ective the means for holding the same locked and cooperating devices carried by the casing and bolt for shifting the bolt within the casing.

in testimony whereoi I aliix my signatur JOHN WoJoiK.

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