US681150A - Car-door fastener. - Google Patents

Description

WALTER II.` sWANII,

i UNITED STATES PATENT GEFICE.

oE DIXON, ILLINOIS.

GAR-Doon FAsTENER.

SPECIFICATION forming part of Letters Patent No. 681,150, dated August 20, 1901. Application filed February 14, 1601. Serial No. 47,250. (No model.)

T @ZZ whom t may concern: i

Be it known that I, WALTER H. SWANK, a citizen of the United States, residing at Dixon, in the county of Lee, State of Illinois, have invented certain new and useful Improvements in Car-Door Fasteners; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such i as will enable others skilled in the art to which .IQ

it appertains to make and use the same.

This invention relates to fasteners for `freight-car doors; and it has for its obj ect to provide a fastening wherein the latch-bolt is held in locking position by means of a bolt which may be operated at will but the latchbolt cannot be withdrawn from locking posi- `tion until after the seal for the door has been broken, the loeking-bolt acting to relieve the seal of strain incident to jarring when the car is in motion.

Further objects and advantages of the invention will be evident from the following description.

cover-plate in place.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a front elevation of the fastening with the cover-plate removed and i l the locking-bolt in engaged position with a seal in place. Fig. 2 is a section on line 2 2 of Fig. 1 with the cover-plate in place. Fig. 3 is a section on line 3 3 of Fig. 1 with the Fig. l is a section on line o: oo of Fig. `1.

i Referring now to the drawings, the present y fastening comprises a member which is mounted on the sliding door of the freight-car and includes a block 5, the face of which is set i l 3, flush with 4the edge of the door, and from which face there projects a latch-bolt 6, in-

. y cluding a body portion having a notch 7 to `form a hook, and from the web portion of provided for taking from the seal the strain incident to such motions as Would tendA t0 slide the door open. For this purpose a springpressed bolt 16 is provided. This bolt 16 is. slidably disposed on guideways 18 and 19, formed on the opposite faces of plates 20 and 21, which are removably placed in the casing 10, below the openings in the side walls thereof, the sliding bolt havingits upper end round-l ed, as shown at 22, for engagement by the bill of the hook ofthe latch-bolt when the latter is moved into locking position, whereby the said latch-bolt may act to press the spring-pressed bolt downwardly topermit the bill of the hook to pass beyond it. When the bill of the hook has passed beyond the bolt 16, the latter rises under the influence of a helical spring 24, disposed between its lower end and the bottom of the casing, so as to engage itself with the hook and prevent withdrawal thereof.

The spring-pressed bolt 16 is covered by a plate 25, which forms a front for the casing, and in which plate there is formed a slot 26, through which is passed the stem of a knob 27 this stem being secured to the springpressed bolt, and when the knob is moved downwardly this bolt is drawn from engagement With the hook, and the latch-bolt 6 may then be withdrawn from the casing by sliding the car-door in the proper direction to open it. Thus when the door is closed, the spring-pressed bolt engages the latch-bolt 6 and holds it closed whether or not the seal is in place, while when the seal is in place it is relieved from all strain.

To prevent insertion of any obstruction into the casing beneath the s prin g-pressed bolt that would prevent lowering of it out of engagement with the latch-bolt, a closing-plate 30 is provided, this plate being pivoted on the stem of the knob 27 and having a cam-face that rests against the bottom of the casing 10. When ICQ the knob is drawn downwardly, thiscamrface is pressed againstthe bottom :of ,the casing and sliding thereover causes the plate to swing laterally and allow the spring-pressed bolt to be moved downwardly. When this bolt rises, the closing-plate is acted on by gravity and swings into its vertical position,l the dimensions of this closing-plate, however, being such that it closes the slot in all p ,osiv tions.

It will he seen that with this construction there iS Lprovided a most. simple ande.ftieient construction for the purposes defined, and it will be understood that in practice various modifications of the specific construction shown maybe made and thatany suitable materials and proportionsmaybeused-withlOutdeparti-ng from the spirit of theinve-ntion.

IVilhat' isv claimed is l. .A car-doop lock compri-sing a casing havin g\ transverse openingsy therethrough'and a' slotted projection i formed thereupona latchbolt .-adaptedgto pass through @the f openings andqhaving a slot-for alineinent-withlthe slot i of thefexterio-r portion -to receivefa seal in conjunction therewith, said `latch-bolt "ha-vingalsoanotehed portion to 'liewwitlrin the casing,a.,spring-pressedrboltlin thecasing-for engagement -with1the notched-portion'. to pre-l ventw'ithdrawalof the ylatch-fbolt,-a slotted! cover-plate fort-he casing,;a knob Yhaving la 5 steun 4passed through-the slot o fgthepla-teandf secu red dto theLspring-pressed bolt toy-mevevit i against the tendency of ythe -sprinrgfand ya;l

aindhaving a slot for alinement with the slot `0f ,the exterior portion to receive a seal in conjunction therewith, said latch-bolt having also a notched portion to lie within the casl ing, guideways `removablymounted within 'the casing, a spring-pressed lbolt in the casin-g forengageinent i\'i th-thefnotched portion `to preventwithdrawal of the latch-bolt, a spring interposed between the bolt Vand the bottom'ofvthecasing, a slotted cover-plate for I.thecasingn a knob zhaving a stem passed through-the slot of the plate and secu-red to the spring-pressed bolt tomove it'against the 'tendency ofthe spring, and a closing-plate -pivoted'tothe stein o fthe knob.

`Intestinrmny-whereot I-hereunto sign my nalneyinthe presence'of `two subscribing witnesses, onthis 11th dayof December, y1900.

`WALTER H. -SWANIQ

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