US1070224A - Car-door lock. - Google Patents

Description

R. H. BATES.

GAR DOOR LOCK.

APPLICATION FILED DEC. 12, 1912.

1,070,224, Patented Aug. 12, 1913.

2 SHEETSSHEET 1.

I II I ATTORN EYS R. H. BATES.

GAR DOOR LOCK.

APPLICATION FILED DBO.12, 1912.

Patented Aug. 12, 1913.

2 SHEETS-SHEET 2.

WITNESSES I IZOdfiZdJT/EBMS ATS error.

CAB-DOOR LOCK.

To all whom. it may concern:

Be it known that I, RODMAN H. BATES, a. citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Car-Door Locks, of which the following is a specification.

This invention has reference to improvements in car door locks, and more particularly to looks for sliding car doors, and its object is to provide a lock which may be readily manipulated from the exterior of the car door and which at thesame time will hold the door in a firmly locked position and which will by a simple manipulating movement carry the lock to a posit-ion where it is in non-interfering relation to the sliding movement of the door.

In accordance with the present invention a suitable casing is provided for application to the exterior of the door, and this casing carries a lock bolt movable on two axes in a manner to throw the bolt into the casing outside the plane of the inner surface of the door when it is desired to move the door to the open or closed position, and also movable in a direction to throw the bolt inside such plane with respect to the body of the car, so that the bolt may engage one of the door posts to hold the door againstsliding movement, and, also, to press the door against the corner post in tight relation thereto.

The invention will be best understood from a consideration of the following detailed description, taken in connection wit-h the accompanying drawings, forming a part of this specification, with the further un derstanding that while the drawings show a practical embodiment of the invention, the latter is not confined to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications mark no material departure from the salient features of the invention.

In the drawings :-Figure 1 is an elevation of a portion of a car door and door post therefor with the lock app-lied and in Specification of Letters Patent.

Application filed December 12, 1912.

Patented A11 12,1913. Serial No. 736,377.

the locked position. Fig. 2 is a section on the line 22 of Fig. 1 with some parts shown in elevation. Fig. 3 is an end elevation of the door looking toward the door post with which the lock engages. Fig. 4 is a section on the line Ll of Fig. 1. Fig. 5 is a View partly in section and partly in elevation through a part of the lock casing to show a cam structure. Fig. 6 is a view similar to Fig. 5 but wholly in section in the plane of the sectioned portions of Fig. 5. Fig. 7 is a detail View of the lock bolt as seen from the side presented toward the interior of the car when the lock bolt is in the locked position.

Referring to the drawings there is shown a casing 1 of web and flange construction inclosing a chamber 2. This casing is approximately rectangular in outline with one side 3 curved and distant therefrom the casing is formed with a cylindrical seat 4 having a central passage extending entirely through the casing from front to back. Otherwise the casing may be in the form of a single casting and so shaped that it may be fitted into an appropriately shaped passage formed in a car door 5 near one edge thereof. The door 5 may follow the usual construction found in box cars and, therefore, needs no particular description. Fitted into the seat or casing 4 is a cylindrical barrel 6 having at one end a radial flange 7 designed to seat in a rabbet 8 formed about the corresponding end of the casing 4. The casing 1 extends but part way through the maincasing 1 and at the edge remote from that provided with the rabbet 8 it is throughout a portion of its circumference formed with a cam surface 9. The edge of the casing 4 presented toward the interior of the car door is connected to the main casing 1 by a web 10, while the casing 4 is in part surrounded by another web 11 carrying a continuation 12 of the casing at in spaced relation thereto, but forming onl an incomplete cylinder leaving a space or slot 13 adjacent the cam portion 9 of the casing 4:. The barrel 6 is of a length to extend nearly to the inner edge of the chamber 2, and secured to the inner end of the barrel is a cap 1 1 of greater diameter than the barrel and having at the periphery an axially directed flange adapted to a circular ledge formed. by the webs l0 and 11. The barrel 6 and cap 14: are united by bolts 16, or in any appropriate manner. At diametrically opposite points the barrel 6 is formed with bosses or lugs 17 in which are formed seats for oppositely directed trunnions 18 on opposite sides of a lever 19 constituting a latch bolt. One arm 20 of this lever extends for a short distance from a hub portion 21 carrying the trunnions 18, while the remainder of the same arm extends at an angle to the portion 20 and is widened, as indicated at 2 2, which widened portion may be of web and flange construction for lightness and strength, and terminates in a nose also oi web and flange construction, which nose may taper for a purpose to be described.

Extending from the hub 21 in a direction opposite to the arm 19 and in the particular construction shown at an angle to the portion 20 of the longer arm of the lever, is a finger 2 1 constituting the shorter arm of the lever and of a length to engage the edge of the casing 1 formed with the cam portion 9, the supplemental portion 12 of the casing 4 serving to maintain the finger 2-51: in close re lation to the main portion of the casing 4t to cause it to follow the corresponding edge of the casing st designated at 9 and merging into the cam portion 9.

Attached to the outer face of the barrel (5 by the bolts 16 or otherwise is a plate 25 which may be made in one piece with one end of a handle member 26 exterior to the casing 1 and car door 5. This handle member is shown as doubly bent for convenience of manipulation and terminates in an inturned angular portion 27 which may closely approach the :ar door, so that there are presented no parts liable to catch obstructions. The handle may be made of web and flange construction for lightness and strength and where designed to be grasped by the hand of an operator adjacent the end 27 may be of appropriately curved cross section so as to present no sharp angles injurious to the hand of the operator.

Formed on the plate 25 is an ear 2S and formed on the outer face of the casing 1 is another car 29, which, when the lock is in the engaged position, are brought into coincidence so far as perforations in the ears are concerned, such perforations being designed to receive a pin 30 suitably perforated as shown at 31 for the reception of the bands of a seal 32, such as is customarily employed in connection with car door looks. The seal provides the means for preventing 1nanipulation of the lock, and this seal when once applied must be broken in order that the lock may be drawn to the unlatched position and the car door he opened.

The opening designed to be closed by the car door is provided, as usual, with side posts of which the side post is the only one shown in the drawings, and on the edges of this side post 33 presented toward the car door opening is a plate 3% which may be shaped to partially emb ace the post, and extending lengthwise of this plate, which is elongated in the direction of the height of the post, is a recess 35 formed as a depres sion in the plate. This recess has the wall presented toward the car door, and therefore which may be termed the outer wall 36, slant ing in such manner that the recess 35 tapers from the upper end downwardly. 'Vhen the nose 23 of the latch or bolt 19 engages in the recess 35 it enters the wider upper end thereof and is moved along the recess downwardly, the slanting or beveled wall 36 of the recess tending to move the latch bolt inwardly with respect to the car, but this latch bolt is held against inward movement so far as the car door is concerned, wherefore the car door is constrained to participate in this inward movement and is therefore forced snugly against the outer face of the post 33, thus etfectively closing the particular portion of the opening where the car door engages the post 33. Movement of the car door in a direction which would carry the nose 23 out of the recess 35 is prevented by the usual stops which determine the extent of movement of the car door in one direction, while the engagement of the portion of the widened end 22 of the lever 19 on the outer side of the nose 23 and there forming a cheek 37, by engagement with the plate 3t and the resistance of the post 33 prevents any opening movement of the car door. If, now, it be assumed that the car door is looked, as indicated in Fig. 1, and it is desired to open the car door, then the pin 30 is removed from the cars 28 and 29, the seal hav ing first been broken and the operator by grasping the handle 26 causes a rotative movement of the barrel 6 in its supporting casing or bearing 4, this movement being counterclockwise as viewed in Fig. 1. The result of this movement is that the nose 23 is carried along the recess 35, which latter may be shallowed toward its upper end, the lever 19 moving about an axis coincident with the axis of the barrel 6. This movement is continued until the finger 24L engages the cam edge 9 of the casing or seat 1, whereupon the lever 19 is rocked on its trunnions 18 in the direction moving the finger toward the interior of the car and consequently impart-ing a movement to the longer arm of the lever 19 in a direction toward the exterior of the car. By this time,

however, the longer arm of the lever 19 is opposite the chamber 2 and the rocking movement of the lever causes the longer arm to enter the chamber 2. It will be observed that the cap 14 is suitably recessed where traversed by the lever 19 so as to permit the rocking movements of the lever, said cap participating in the rotative movements of the barrel 6. The lever 19 is now entirely on that side of the plane of the inner face of the door toward the outside of the door, wherefore there are no projecting parts inside the door, and the latter may be moved in the usual manner to the open position. When it is desired to again lock the door the latter is moved to the closing position and the handle 26 is rotated in the opposite direction to that in which it moves on unlatching the lock, whereupon the lever 19 is rocked on its trunnions in a direction to project it beyond the inner face of the door and once more into the recess 35, after which the pin 30 may be replaced and sealed as before.

It is to be observed that the lock is applied to the car door, extends through the car door, has the lock bolt or lever on the interior of the car door and the operating lever or handle on the exterior of the car door, so that the door may be locked or un locked wholly from the outside, while the locking mechanism with the exception of the handle is wholly covered so far as access from the exterior of the door is concerned.

The handle member 26 also provides a convenient means which may be grasped by the operator for sliding the door open or shut and when the door has been shut the operator while still grasping the handle may rotate it sufliciently to cause the backing of the door.

What is claimed is z 1. A car door lock, comprising a casing shaped to extend through acar door and open interior thereto, a rotatable member "arried by the casing and provided with a manipulating part exterior to the car door, a latch member mounted on the rotatable member and movable therewith, and coactmg means on the casing and latch member for causing movement of the latter wholly into the casing and out therefrom into locking position in a direction other than the direction of movement of the latch member with the rotatable member about the axis of rotation of the latter.

2. In a car door look, a latch member mounted for movement on two axes substantially perpendicular one to the other, a manipulating member for moving the latch member about one of its axes of movement, and means for causing movement of the latch member about its other axis when moved about the first-named axis.

3. A car door lock comprising a casing adapted to traverse a car door, a rotatable member seated in the casing and accessible for manipulation exterior to the casing, a latch member mounted on the rotatable member and movable in its mounting on an axis substantially perpendicular to the axis of movementof the rotatable member, guide members for the latch member within the casing for causing its movement about the second named axis into and out of the casing, and a receptacle or keeper for one end of the latch member adapted to a marginal portion of the car door opening.

4:. A car door lock comprising a casing adapted to traverse a car door, a rotatable member seated in the casing and accessible for manipulation exterior to the casing, latch member mounted on the rotatable member and movable in its mounting on an axis substantially perpendicular to the axis of movement of the rotatable member, guide members for the latch member within the casing for causing its movement about the second -named axis into and out of the casing, and a receptacle or keeper for one end of the latch member adapted to a marginal portion of the car door opening, said receptacle or keeper having a beveled wall presented toward the outer part of the car to coact with the latch member to draw the car door against the side of the car when in the locked position.

5. A car door lock comprising a casing adapted to traverse a car door with the outer face closed and having an inner chamber open toward the interior of the car, said casing also being provided with a cylindrical receptacle or bearing portion terminating in an inner cam edge, a barrel fitted to said bearing portion and rotatable therein and having a cap member on the inner end, a lever having pivot supports within the barrel with a finger projecting from one side of the pivot support into engagement with the cam edge of the bearing and on the other ide of the pivot supports having an elongated arm terminating in a nose, a handle fast to the barrel exterior to the casing for turning said barrel, and a socket or keeper member adapted to be secured to a side post of the car door opening for receiving the nose of the lever when in the locked position.

6. A car door lock comprising a latch member provided with a pivotal support movable on an axis substantially perpendicular to the axis of its pivot, and a casing or housing for the latch member into and out of which it is movable by the resultant of the two named axial movements.

7. A car door lock, comprising a casing, a rotatable member mounted therein and held against movement lengthwise of its axis of rotation, a latch member mounted on the rotatable member and participating in the rotative movements thereof, eoaeting means on the latch member and casing for causing meking movements of the latch member upon an axis other than the axis of rotation of the rotatable member, and a keeper for the latch member having inclined or beveled engaging portions related to the car door to draw the latter toward the lock in a direction substantially perpendicular to the plane of movement of the car door. 10 In testimony whereof I have afiixed my signature in presence of tWo Witnesses.

RODMAN H. BATES. Vitnesses W. R. VAN HoUsEN, NM. J. MoGARRoN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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