US1161085A - Sliding-door lock. - Google Patents

Description

E. W. TEST & N. A. LEIST.

SLIDING DOOR LOCK.

APPLICAUON FILED JAN. 12, 1915.

Patented Nov; 23, 1915.

2 SHEETS-LSHEET 1.

E. W. TEST & N. A. LEIST,

SLIDPNG DOOR LOCK.

APPLICATION FILED JAN. 12, I915.

Patented Nov. 23, 1915.

2 SHEETS-SHEET 2- lmvenfawfi:

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ELLIS W. TEST AND NORMAN A. LEIST, OF MICHIGAN CITY, INDIANA.

SLIDING-DOOR LQCK.

Specification of Letters Patent.

Patented'Nov. 23, 1915.

Applicationfiled January 12, 1915, Serial No. 1,757.

have invented certain new and useful Im-,

provements in Sliding-Door Locks, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to locking devices for securing sliding doors, and while adapted to doors mounted on any structure is intended primarily for use in connection with car doors.

Th objects of the invention are to provide a locking device by means of which the closing of the door may be completed and its initial movement in opening secured, the door being wedged inwardly against the casing as it is closed; to provide improved means for securing the locking parts against movement, and for the application ofa padlock. These objects are attained in the device hereinafter described, and illustrated in the accompanying drawings, in which Figure 1 is a detail elevation of the side of a car with the locking mechanism applied thereto and shown in part in section; Fig. 2 is a detail of a rack bar and gear comprising parts of the locking mechanism; Fig. 3 is a detail of the locking mechanism showing a modified form of construction; Fig. 4. is a sectional detail of the structure shown in Fig. 3; Fig. 5 is a detail elevation of the casing of the locking device; Fig. 6 is a detail plan section of the same; Fig. 7 is a sectional detail of the gear and retain ing pawl of the locking mechanism; and Fig. 8 is a detail of the locking mechanism showing a further modification.

At 10 there is shown the door post of a car, and at 11 a portion of the car door.

The lockingmechanism consists of a rack bar 12, which is attached to the door pref-- erably by means of a pivot 13, set through a strap 14 attached to the doorbysuitable bolts or rivets. The rack bar 12 normally projects beyond the forward edge of the door, but may be turned upwardly on the pivot 13 when the door is open. A socketed casing 15 is secured to the door post by means of suitable bolts or rivets, and receives the-end of the rack bar 12 as the door closes. A gear wheel 1 is pivotally umted within the casing 15, and cooperates with the rack bar. A handle 17, attacliecl preferably permanentlyto the arbor 18 of the gear, provides means for turning the latter to draw the rack barinto the casing and thus complete the closing of the door, or to force the rack bar out of the casing, thus partially opening the door. 1 i T In the form of construction illustrated in Figs. 1, 2, 3, 4 and 7, a retaining pawl 19 is,

pivotally mounted within the casing 15-and cooperates with the gear 16, the latter being provided with one or more ratchet teeth, as

shown at 20 in Fig. 2, for its engagement. A lateral lug 21 on the pawl projects through a slot 22 in the outer face of the casing'15', and a'fiords ineans for the manual control of the pawl. As shown' in Fig. 1, a pair of lugs 23, 24, formed on the outer face of the casing 15, flank the slot 22, and are apertured for the reception of a seal strap,the

' lug 21 being similarly apertured and the severa-l lugs being so disposed that their apertures are in register when the pawl is in engagement with the gear.

As shown in Figs. 3 and 4, a hook 25 may be pivoted upon the outer face of the casing 15 in such position that its nose will enter the aperture in the lug 21 of the pawl. When such hook is employedthe lugs. 23,

'24:, may be present, as indicated in Fig. 3,

or may be omitted, as indicated in Fig. 4. When such hook is employed its nose is transversely apertured, as shown at 26, for the reception of a seal strap.

In the construction illustrated in Fig. 8, the retaining pawl is dispensed with, the handle 17 being provided with a forwardly projecting apertured toe 27, and a hook 28 being mounted on the outer face of the casing for engagement therewith when the door is closed. When this form of construction is used, the seal may be applied in various ways. For this purpose there is shown a pair of upstanding apertured lugs 29, 30, one formed on the hub of the hook 28 and the other on the casing 15. When the hookis in engagement with the toe 27, the apertures in theselugs are in register and the strap may be passed therethrough. I

The casing 15 is provided with a for wardly projecting guide lug 81, having a beveled face and adapted to engage the outer surface of the door as the latter is closed'andforce it inwardly snugly against seal the door casing, this lug taking the place of the guide lug which has heretofore been placed at the bottom of the door.

The rack bar 12 is provided near its inner end With a depending apertured lug and the casing 15 is protided with an apertured flange 33 in line with the lug. When the door is closed the lug 32 and flange 33 come together face to face, their apertures registering to accommodate the hasp of a padlock.

While the device is shown and described as applied to a car having-a single door, it is obviously applicable as well to double door cars such as are used in the shipment of automobiles. \Vhen. so applied the frame of one of the doors will take the place of the door frame post and carry the socketed cas ing 15.

e claim as our invention 1. In a sliding door securing device, in combination, a rack bar adapted for pivotal attachment to a door, a socketed keeper for Y attachment to a door casing to receive the rack bar, a gear Within the keeper for engaging the bar, and a handle for turning the ear. b 2. In a sliding door securing device, in combination, a bracket for attachment to a fdoor, a rack bar pivotally attached to the bracket and capable of swinging upward, a soeket d keeper for attachment to a door casing to receive the bar, the throat of the socket having an inclined face for deflecting the bar upward, a gear within the keeper and engageable with the bar, and a handle for turning the gear.

3. In a sliding door securing device, in combination, a rack bar adapted for pivotal attachment to a door and having a vertical aperture at its free end, a sockcted keeper for attachment to a door casing to receive the rack bar, a gear within the keeper for engaging the bar. a handle for turning the gear, and a bolt for engagingthe bar and aperture, such bolt haringva longitudinal slot, and a holding stud loosely engaging the slot for securing the bolt to the door casing. 4. In a fastening device for cooperating i with a sliding door and its @asing. the 'combination with a rack bar adapted for pivotal attachment to one of such parts, and a socketed keeper adapted for attachment to the other of such parts and to receive the rack bar.a gear within the keeper for engaging the rackbar, and a handle for turning the gear.

ELLIS IV. TEST. NORMAN A. LEIST.

\Vitnesses:

R. E. FRAME, R. M. Fox.

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