US1171989A - Car-door lock. - Google Patents

Description

C. W. UNDERWOOD.

CAR DOOR LOCK.

APPLICATION men AUG.I6, 1915.

1,171,989. 1 Patented Feb. 15,1916.

2 SHEETS-SHEET I.

UN DERWOOD Gummy C. W. UNDERWOOD.

CAR DOOR LOCK.

APPLICATION FILED AUG.16, m5.

1,171,989. Patented Feb. 15,1916.

2 SHEETS-SHEET 2.

awuantob C- W UNoERwooD UNITED s raras are CHARLES W. uivnnnwoon, or CROWLEY, ouisiana.

CAR-DOOR LOCK.

Specification of Letters Patent. 7

Application filed August 16, 1915 Serial No. ;77L

My invention relates to doors,' and particu-" larly to the doors of cars, and the primary object of my invention is the provision of a means for forcing a car door inward toward the side wall of the car and holding it in a locked position; thus preventingleakage of water orthe inlet of snow into the car through the joint between the car ,door

and the car.

A further object of my invention is to provide a car door which is held at four or more points of contact when in a locked position, thus preventing the warping or springing of the door under any and all conditions, thus insuring at all times a perfectly operating door which will last as long as any other 'part of the car. 1

A further object of my invention is to provide means whereby a constant strain or tension is applied to the door when it is closed and sealed, making the door absolutely weather-proof at alltimes and preventing any tendency of the car door to spring outward or warp.

a A further object of my invention is to provide a locking mechanism which 1 is mounted on the door itself andwhich is so constructed that it is possible to operate and lock the car door even if the car door is v hanging out of plumb. with the door opening.

A further object of myinvention is to provide construction whereinclamp hooks ar "mounted upon the door adapted to engage with anchoring-bolts or like devices on the door irame and with resilient-cross bars upon which the clamp hooks are mounted,

so constructed that the tension or resilience of the cross bars will constantly apply pres sure to the car door thus taking up any wear that may take place and insuring a watertight joint;

Other objects will appear in the course of the following description My invention is illustrated in theaccom- 'panving drawings, wherein:

Figure 1 is a fragmentary elevation of a portion of a railway car with my improved door locking device applied thereto, the door being broken away; Fig. 2 is a longitudinal sectional View on the line 22 of Fig.1, showing thedoor in its locked position; Fig. 3 is a like View to Fig. 2, showing the door inits unlocked position; Fig. 4 is a frag- .mentary' perspective view of'one edge of the door and a portion of the adjacent frame; Flg. 5 1s a detail sectional view of thelock- .ing lever 26 and the means for locking the 7 PatenteclFeb.15',1916.

lever in position Fig. 6 is a face view of a portion of a doorcfr'imeshowing a different form of anchoring device; Fig. 7 isa section' on theline Z-7 of FigrG-aFig. 8' is an enlarged face view of the sector 30. i

In Figs. 1 to 5, 2 designates-apart of any suitable construction, shown as' having a door opening 3 defined by the upper and lower sills '-l and 5 and by the vertical st'u'diding 6. The car door 7 is of any suitable construction and as illustrated is mounted in the usual way'to slide to an open or closed position; To thisend the car door 7 at its upper end. is provided with a hanger 8 which "carries rollers 9 engaging with the rail 10. This is no'part of my invention and I do not wish to be limited to any par-.

ticular means thereto for mounting the door for sliding. movement. 7 The car door is shown as'prevented from outward move ment at its lower end by the hooks 11.

In the form of construction shown in Figs. 1 to 5, anchoring bolts lflpass through the studding 6 and extend laterally therefrom parallel to the plane of the door and the side wall of the'car. These anchor bolts may be of any suitable form. The door 7 is provided with a plurality of transversely extending rotatable cross bars 13 which have the form of shafts, each cross bar being 7 formed at its middle with a cranked portion v 1% whose details of construction will be later descr bed, The extremlt es of eachv cross "bar 13 extend beyond the side edges of'the door and are there provided with the clampiughooks 15 which are rigidly attached to the cross bars 13. The ends of each cross bar 13 are supported in guide brackets each comprising a base 16 and an elliptical or oval hearing 17. The longitudinal axis of this ellipse extends upward and outward in divergent relation to the face of the door as illustrated in Fig. The width of the ellipse is practically the same as the diameter of the shaft or cross 13. The upper end of each elliptical guide is formed. with an outwardly or laterally projecting arcuate lug 18 formii'ig a stop and disposed in the plane of the hook 15. hook 15 is formed with an inwardly projecting. pointed lug 19. It is to be understood that the hooks 15 are adapted to engage the anchoring bolts 12 when the door is in its closed position, and for the purpose the bar 20 there is provided a pin or bolt whose outer-end 1S supported by a strap and this pin or bolt 23 engages in a slot 25 formed in the extremity of an arm 26 of an angular lever designated generally-27. This lever is pivoted at 28 upon the face of the car door and has a downwardly depending arm 29 forming a handle whereby the lever may be moved. This arm 29 passes beneath a sector 30 which is attached to the car door and spaced therefrom, and the arm is guided properly upon this sector by means of the outwardly projecting eye or perforated lug 31. The lower extremity of the arm, 29 is formed with a handle 32 whereby .the lever may be readily rhanipulated. The sector is provided with a longitudinally extending rib 33 terminating short of the end of the sector. The inside face of the sector is PIOVlClBCl with an arcuate lip 3% also terminating short of the ends of the sector to provide two sockets 35 and 36. Disposed upon the face of the sector opposite the socket 36 is a locking pin seat 37. Slidingly mounted. upon the arm 29 is a collar carrying upon it and formed with it the locking pin 39 and having the hook-shaped head 10. This pin 39 is longitudinally slotted as at 41. When the handle 29 is shifted in one direction, that is, over 7 toward the seat 36, the door will be locked The base of each the door is unlocked and the locking devices may beheld intheir unlocked 13031131011.

by shiftingthe collar38into the seat 35.

The pin 39 of course passes through the per: forated lug or eye 31 and a padlockor other. suitable device is adapted to be engaged with the slot '41 and lock this pin. from accidental removal:

The operationof my locking device 1s1as follows: Assuming that the door is in. ts

1,'the bar 20 will be raised.

cross bars 13,thus throwing the-hooks into engagement with the, anchoring bolts; A

further upward imovement of the bar 20 actsto lift the bars or shafts 13 and as they are lifted the. ends of the bars orshafts' ride outward in the elliptical-bearingl? thus straining the bars-13. The resilienceof '80 closed position, but the bar 20 isshifted;

downward to its lowest. position and the hooks 15 are retractechthen upon a move" ment of the handle 29 to the rightin F i This raising of the bar first acts to, rotate the shafts or these bars or shafts 13 is such that the bars or shafts will give after the hooks have i been brought to theirfully locked position, and when the pin 39 is in engagement with the pin seat 37 these bars13 will be drawn upward at the middle and placed under ten sion, thus resiliently drawing thedoor against the face of the door frame. lVhen it is de- .sired to unlock the door the handle 29: is shifted reversely or toward the left in Fig.

1, which causesthe bar 20 to shift down! ward. This first acts to relieve the strain onthe bars 13 by carrying the bars downward in the elliptical; bearing 17 and then:

as illustrated in Fig. 3. The door maybe then readily shifted away from the door opening in the. usual manner.

hen thehooks are fully rei .tracted they will engage with stop lugs 18 While I do'not wish to be limited to any particular way of constructing the shafts:

or cross bars 13, I have illustrated. the; cranks as being formed by castings havlng' socketed ends within. which the extremities of the sections forming the cross bars 13 are inserted and to which they .are attached in any suitable manner as by key pins or V the like.

While in Fig. 1, I show a car construe tion which requires that the locking bolts other forms of car construction where these anchoring bolts in theform illustrated in Fig. 1 cannot be applied. Thus in Fig. 6

work. of the car entirely. Under'these circumstances 1 form the stud or upright 43 behind the sheathing witha seat 44 and also form a seat in the's'heathing42. Int-his seat I dispose the anchor plate l5 which anchor plate has ahead formed with a depression or recess as and with a crossbar 47. The head of this anchoring device is formed integral with the bolt shank &8 which extends into and through the studding 43 and is engaged by a nut, this nut being preferably countersunk in the stud ding. Otherwise than this the construction is precisely the same as previously described. The hooks 15 instead ofengaging with anchoring bolts, as at IQ engage with the cross bars 47. It will thus be seen that the cross bars 47 and the studs or bolts 12 are'the equivalents of each other and perform the same function.

gaged with the face of the door frame and will at all times place a strain upon thev door which will hold it closed and prevent the inlet of rain,snow or dust. It will be seen that the door is braced by a plurality of transversely extending cross bars and that thus the door is forcedinward at a plurality of points. It will also be seen that when strain is placed upon these cross bars 13 the middle of the door is forced inward as well as the side margins of. the door. Thus the door is held from warping. 'Furthermore, the strain placed upon the door is distributed not only by the cross bars but by the bar 20. lVhile I have illustrated two cross bars it will of course be understood that more cross bars might be used if desired. The resilient cross bars take up any wear that may take place in years of use and prevent the door from warping or from springing, and by my mechanism it i possible to lock the door even though the door is hanging out of plumb with the door opening in the car by reason of the fact that the cross bars have a certain amount of play in the vertically disposed slots of the bearing members. 1

My invention very greatly increases the life of the door relative to the car. At present the life of a car door is relatively short. The shifting of the load, the use of pinch bars, and the nailing of cleats causes the door to shut and open with difficulty and the result is that the door is constantly subjected to very'rough handling. With my construction there is no necessity of cleats, no necessity of using pinch bars for. the purpose of opening the door, and the pressurelof the goods against theinsid'e of the door is resisted by the resilient shafts or cross bars '13. r v v Having thus described iny'inventiomwhat I claim is;

l.--The combination with a door -frame' andf-a door, of members mounted on the door and adapted to have operative engage! ment with the door frame and belng mounted for vertical movementrelative to the door, and means for flexing said members and thereby placing them under tension upon a vertical movement.

The comblnation wlth' a door frame and. a door, of a plurallty of transversely extending rotatable bars rotatably mounted upon the face of the door and projecting beyond it, hooks mounted on each end of sand bars and adapted to operatrvely engage the door frame, upwardly'and outwardly inclined walls with which the'e'nds of the bars engage, and means for simultaneously as I rotating said bars and shifting them verti- H cally upward 1nto wedglng engagement wlth said walls. a

3. The combln'ation with awall having a door opening, of a sliding door mounted thereonicfor movement into position within said opening, a plurality of transversely eX- tendlng bars .rotatably mounted upon the face of the door and projecting thereb'eyond,'each of said bars being formed with a cranked portion at its middle, radially. disposed hooks mounted upon the ends of each bar, members mountedupon the wall with which the hooks are adapted to engagewhen the door is in place, brackets mounted adjacent the side margins of'the door and 7 each having an outwardly extending web formed with an elongated upwardly and outwardly extending slot through which the corresponding end of the bar passes, a ivertically movable membermounted upon the face of the door for shdmg movement and having operative engagement wlth the cranked portions of said bars, and means for shifting said member upward to thereby rotate the bars and shifting them vertically to thereby cause the walls of said slotsto force the outer ends of the bars outward away from the face of the. door. 7

I 4. The combination with a wall having a door opening, of a door mounted for movement into position within said opening, a

transversely extending bar rotatably mount- .ed upon the door andprojecting therebeyond, hooks carried by the bar, members carried by the wall with which the, hooks are adapted to engage when the door is in place. brackets mounted ad acent the side margins of the door and having an elon gated upwardly and outwardly extending slot through which the corresponding ends of the bar passes, and a movable member mounted-upon the (1001 and having operat Ih testimony whereof I hereunto a'ffix' my tl e engagement Withthe shaft and adapted. signature in the presence of two Witnesses.

to rotate the bar and shift the same verti- Cally to thereby cause the Walls of the slot to force the outer ends of the bars outward away frem the face ofthe door.

Copies of this patent may be obtained for five cents each, by addressing the Gommissionerof rateptsg CHARLES VJ. UNDERWVOOD. Witnesses:

L.'L. CLARK,

JAs. ANNY..

Washington, 111G.

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