US777456A - Car-door fastener. - Google Patents

Description

No. 777,456. PATENTED DEC. 13, 1904. J. G. WANDS.

OAR DOOR FASTENEE.

APPLICATION FILED A1R.18, 1904.

no MODEL.

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Patented December 13, 1904.

PATENT OEEIcE.

JOHN C. WANDS, OF ST. LOUIS, MISSOURI.

CAR-DOOR FASTENER.

SPECIFICATION forming part of Letters Patent No. 777,456, dated December 13,1904.

Application filed April 1.8, 1904;- Serial No. 203,776- (No model.)

To all whom it may concern:

Be it known that 1, JOHN CLARK VVANDS, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Fastening Devices for Oar-Doors, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in whicl Figure 1 is a longitudinal sectional view through a door-fastening device on the line 1 1 of Fig. 2, the fastening-bolt and its retainer being illustrated in elevation. Fig. 2 is a side elevational view of the fastening member carrying the bolt. Fig. 2 is an cnlarged fragmentary view of a portion of thefastening member carried by the door. Fig. 3 is an inside elevational view of the door-carried member, showing the position of the retracted bolt and its retainer. Fig. 4 is a sectional view on the line a l of Fig. 3, the bolt being removed. Fig. 5 is a fragmentary view of the door-carried member, showing a slightly-modified form of retainer. Fig. 6 is a cross-sectional view on the line 6 6 of Fig. 5, and Fig. 7 is a plan view of the fastening member carried by the body of the car.

This invention relates to door fastenings particularly applicable for securing car-doors to the ear-body.

One of the objects of the invention is to provide an efficient means for conveniently securing the fastening-bolt against displacement after it is assembled with its cooperating part. I

As illustrated in the drawings, the preferred form of fastening device embodying my invention consists of a plate 1 carried by the door 2. This plate forms an extension of a barrel 3, which is provided with a keyhole-slot 4. In the end of the barrel 3 is a recess 5 for the reception of the lug 6 on the bolt 7. The barrel 3 constitutes a cooperating supporting member for the locking-bolt 7. The contracted portion of the keyhole-slot 4: is provided with inclined walls 8 and 9, so that the contracted portion is slightly tapered, as clearly illustrated in Fig. 4.

10 is a socket member having a keyhole-slot 11 in the barrel 12 thereof, the end of the barrel being irregular or cam-shaped, as clearly illustrated in Fig. 1. In attaching the bolt to the barrel 3 of the plate 1 the lug or projection 6 is inserted in the reduced portion of the keyhole-slot and the larger portion of the slot receives the bolt proper. After the bolt is passed through the keyholeslot a retainer 13 is inserted in the reduced portion of the slot to frictionally engage the walls thereof and prevent the removal of the bolt. This retainer may consist of a ball, as indicated in Figs. 1, 3, and t, or it may consist of a plug 14:, as indicated in Figs. 5 and6. In either event the retainer is dropped in from the larger portion of the reduced part of the slot and driven toward the reduced end until it securely binds against the inner walls of the slot so that it cannot readily be removed. The insertion of the retainer will close the reduced portion of the keyhole-slot 4, so as to prevent the passage of the lug or projection 6 of the bolt 7 therethrough when the door is in an unlocked position. It will therefore be apparent that the bolt cannot become accidentally removed.

The manner of inserting the retainer in the reduced portion of the slot so as to obstruct the passage of the lug or projection permits the parts to be readily assembled and is a conveniently-attached device which obviates the necessity of drilling through the casting. The recess 5 in the'barrel 3 of the plate 1 is of suflicient depth to receive the lug 6 therein when the bolt is out of engagement with the member .10, so that the door can be readily slid into an open position.

Other forms of retainers may be employed, if desired, the essence of the invention con sisting in providing a retainer which can be easily dropped into the restricted portion of the keyhole-slot, so as to frictionally engage the walls thereof.

I am aware that minor changesin the construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a locking-bolthaving a projection, a cooperating supporting member having a keyhole-slot, and means in the reduced portion of the slot to obstruct the passage of the projection on the bolt; substantially as described.

2. The combination with a locking-barrel having a slot, of a longitudinally-movable bolt in the slot and provided With a projection, and aretainer for the bolt consisting of a member driven into the slot so that the Walls of the slot are caused to permanently engage the retainer; substantially as described.

3. The combination With a locking-bolt having a projection, a cooperating supportingbarrel having a keyhole-slot, and a plugshaped retainer for the barrel, the outer edge of which engages the Walls of the reduced portion of the slot to obstruct the passage of the projection on the bolt; substantially as described.

In testimony whereof I hereunto aflix my signature, in the presence of two witnesses, this 12th day of April, 1904.

JOHN C. WANDS.

Witnesses:

GEORGE BAKEWELL, Gr. A. PENNINGTON.

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