US1322499A

US1322499A - mathews

Info

Publication number: US1322499A
Authority: US
Publication date: 1919-11-18
Anticipated expiration: 1936-11-18

Description

F. MATHEWS.

CAR DOOR FASTENER.

APPLICATION FILED `MM! 3. 19u.

Patented N ov. 18, 1919.

fnl/6717571 7&6 5565 I F. MATHEWS..

GAR DOOR FASTENER.

L1cAT|0N FILED MAY 3. 1917.

1,322,49. 1111611161 NOV. 18, 11119.

2 SHEETS-S`HEET 2.

IERED MATI-IEWS, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 WALTER P. MURPHY, 0F NEW YORK, N, Y.

CARDOOR FASTENER.

Specification of Letters Patent.

Patented Nov. 18, 1919.

Application lec'lvMay 3, 1917. Serial No. 166,083.

To all whom t may concern Be it known that I, FRED MATHEws, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Car-Door Fasteners, of which the following is a full, clear, and exact description.

My invention relates to sliding door fasteners, and particularly to fasteners for the rear edge of slidingcar doors when closed.

The object of my invention is not only to fasten the sliding door when closed, but also to move the door tightly againstthe doorpost, by means which withdraw from the recess in the door-post into the door when unlocked and does not interfere with the movement of the door when it is desired to open the same, substantially as hereinafter fully described, and as particularly pointed out in the claims.

In the drawings:

Figure 1 is a front view of my invention showing it applied to a fragment of a sliding car door and side of a car.

Fig. 2 is a horizontal section of the same taken on dotted line 2 2, Fig. 1.

Fig. 3 is a vertical transverse section taken on dotted line 3 3, Fig. 1.

Fig. t is an edge view of the door showing said lock fixtures in side elevation.

F ig. 5 is a vertical transverse section taken on dotted line 5-5, Fig. 3.

Fig. 6 is a front view of a fragment of the plate invwhich the bolt hole is made and a transverse section of the inner reduced end of said bolt therein, said figure being on the line 6 6 of Fig. 3.

Fig. 7 is a perspective view of the bolt segregated from the remainder of the fastener.

Referring to the drawings, A represents a fragment of the side wall of a car body; B the rear post of the door-frame thereof and C the broken away portion of a sliding car door to which my improvements are applied. At a suitable point inthe outer surface of the door post av recess a is made, and the mouth of this recess is closed by a flat plate b which has a hole c therein through which the bolt is adapted to be shot or withdrawn, as will hereinafter be more fully explained.

This bolt 7 has a cylindrical body which is rotatively seated in the bore of a tubular casing 8, which latter projects transversely through the door structure from a metal plate 9 that is secured by rivets or bolts to the outer surface of the door next -its rear edge. The body of the bolt extends from end to end of the bore of the casing 8 and its outer end is reduced and extends beyond plate 9 and has the boss 10 of a handle 12 securely mounted thereon. j

When the bolt is shot into recess a so as to lock the door the handle thereof will extend to the left in a horizontal position, and when said bolt is rotated into such position as to be withdrawn from recess a and unlock the door, the handle will be in a horizontal position and extend to the right. When the han- -dle is at the limit of its left hand motion it will rest upon a bracket 13 projecting outward from plate 9, and which has an opening 14 therein that alines with an opening 15 in the shaft of said handle. If desired, the yoke of a seal 16 may be passed through these openings 141 and 15 and its ends properly fastened in the usual manner when the door is locked. When the door is unlocked, handle 12 will rest upon a bracket 17 projecting from plate 9 on the side of casing S opposite bracket 13. f

The cylindrical body of the bolt has a pin 18 projecting laterally therefrom near its inner end, and thisA pin is adapted to enter and engage a spiral groove 19 made in the inner circumference of the bore of casing 8, which latter extends from a point near the inner end of said bore to the outer end thereof. The inner end of the groove terminates in a transverse segmental portion 19a.

When the bolt is at the limit of its outward movement pin 18 will engage the outer end portion of the spiral groove 19 and when it is rotated to the left the engagement of the pin with the groove forces the bolt inward until the pin arrives at the inner end of the spiral portion of the groove, whereupon the longitudinal movement of the bolt ceases and it moves on its axis to the extent permitted by the transverse segmental portion 19a of the groove. When the bolt arrives at the limit of its inward movement the inner reduced end of the bolt will have passed through bolt-hole c in plate b and the head 21 projecting transversely from its inner end will be within the confines of recess a. When the bolt has arrived at this last mentioned position, pin 18 will enter the transverse segmental portion of the groove, and as said bolt is rotated to the extent of said segmental portion, head 21 will engage the inner inclined surface of a segmental rib 22 situated on the inside of plate b, the curvature of which is struck from the pivotal center of said head, and thus draws the door tightly against the door-post or s'ubstantially'so. Then the bolt is turned from lefty to right, at the start of its movement, the'b'olt'rotates on its axis until head 21 thereofis in position to be withdrawn from bolt-hole o whereupon the engagement of `pin 18 with the'spiral part of the groove moves'the bolt outward and withdraws the head out of recess a.

N'hat I claim as new is:

1. The combination witha sliding door, the door-post of a door-frame, and a plate covering over a recess in the outer surface' of said post that has a bolt opening therein,

of a tubular bearing carried by said door andv a bolt journale'd in said bearing, one ofsaid last named two elements having a spiral groove which terminates in a Ytransverse seg-- mental portion and the other having a pin projecting therefrom that venters and-en-V gages the groove, said bolt Ibeing provided with a laterally projecting head on its inner extremity, and means for rotating said bolt and causing the head thereof to move into or out of said recess, said pin being positioned to enter the transverse segmental p0rtion of the groove when the head enters the recess.

2. The combination with a door j amb, and a door to bedrawn against thesame,orI a plate spanning fa recess formed in the jamb, said plate being apertured for passage of a bolt, a'cam formed on the plate on its side `toward said recess, a bolt bearing mounted in thedoor-in register with the plate aperture, a locking bolt mounted in the bearing, one 'of said last -mentioned two elements formed with a spiral groove terminating at the inner end in an arcuate groove concentric with the axis ofthe bear-ing,"a guiding pin xed inthe other of said elements and traveling in said groove, and a Vcam lug formed on the inner end of theboltand movable into engagement with said cam by inward travel of the pin in the 'spiral Vportion of the groove, the arcuate portion of vthe groove being of sufficient length to accommodate the Vmovement of Ythe pin incident to travel of said lug upon the cam, and said pin being so positioned as to leave the spiral portion of 'the groove and enter the arcuate portion thereof to-permitthe lug to be moved against the cam.'

In witness whereof 'I h-ave'hereunto set my Witnesses:

PETER F. MCSHANE, FRANK D. THoMAsoN.