US1343925A - Car-door - Google Patents

Description

W. H. McGANN.

CAR DOOR.

APPLICATION FILED SEPT- 2, 1919.

1,343,925. PdtentedJune22,1920.

3 SHEETS-SHEET 1.

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w. H. McGANN.

CAR DOOR.

APPLICATION FILED SEPT. 2, I9I9.

1,843,925. Patented June 22, 1920.

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WILLIAM H. M 6mm.

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W. H. McGANN.

| 1m) SEPT. 2, m 1 1,343,925. Patented June 22, 1920 3 SHEETS-SHEET 3.

I] III UNITED STATES PATENToF cs.

WIL A H. mceann, or numerous,- MINNEso'rA.

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To all whom it mayeoncerfl: I a Be it known that I, WI'LLIAM H, MoGAnn,

a citizenlof the United States, residing at My invention relates to cardoors andhas for its object to provide an improved lock and operating mechanism thereton' Generally stated, the invention consists of the novel devices and Combinations of devices hereinafter described and defined in the claims. I a I Particularly, the. invention provides a simple and eflicient means, first -for positively moving the side door of a freight car; and second, for locking and sealing the sameeither in closed or in more or less open positions. 1! or the shipment of fruit, grain andvarious other commodities, ventilation within the car is of the utmost importance, and'fOI'gthlS reason, inspectors,.at certain points along thejline, inspect {the cars and determinewhether or. not, the side doors mustbe opened slightly to give the desired ventilation. My invention provides a very simple. and highly efficient. device "which ineetsall of the conditions incident to the above noted operationand permits the car door to 'be-locked and sealed invarious different more or less open positions, as well as in closed position. The invention also involves certain other features as will hereinafter appear. 3

The invention is illustrated in the accompanying drawings wherein, likelrcharacters indicate like parts throughout the several views. Referring to the drawings:

Figure 1 is a side elevation showing a freight car body with some parts broken away, illustrating my invention ap lied to one of the'sliding side doors thereo Fig. 2 is an enlarged side elevation of the lock mechanism and cooperating door,

- pin 23 that is adapted to engage with the moving devices; and

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 2.

Of the customary parts of the car, the

numeral 4 indicates the car body, and the numeral 5 one of its side doors, which latter is provided at its upper edge with wheel- I Specification of Lttei'slatent.

travel on an overhea' d rail 7 in the custom- Patented'June22,'1920. V iicat'io filed September 2, i919." SerialNo. 320,988. v

ary way. "The numeral 8 indicates the lower door .hanger brackets, the numeral 9 the door stop, and the numeral 10 the usual hasp us omary Way, f des ed- [In the application'of my invention, I

fastening that is adapted to be sealed in the provide a rack bar 11 which is secured to the outer surface of the side of the carbody,

and extends horizontally thereof along a line considerably above the lowered ge of the door 5. This rack 11 is shown as providedwiththreaded bolts 12 which, at the inner side of the car-body, are e nipped with nuts 13 that seeurely clamp t e said p l a I l rack 1n pos t on. 1* or an important purpose which will presently be noted, this rae made dovetailed in cross section.

Meshing with the rack 11 is a1pinion 14 that works within a housing 15 rigidly secured to theifldoor 5 near one edge thereof. This housing 15 is preferably clearly set into the door, and the door, at its inner side, is formed with a channel into which is set, and rigidly secured, an internally dove-tailed metal retaining channel 16 rigidly secured by screws, bolts, rivets, or otherwise, to the ease I hinge of the housing 15 and to the door step. 2 Here it maybe noted that the interlocking sliding engagement between the dox' et'ailed rack and the channel 16 positively prevents the door from being pried laterally away from the car'body so as to thereby disengage .the lower-'edge from the doorfrom one orbo'th ofthe lower hanger brackets 8., Hitherto, car doors of this kind have been pried open and goods removed from the car without breaking the car seal. This operation is prevented by the device jus dJeSC ib i-L o a The pinion 14'is rigidly'sec'ured to ashort upright stem 17 which, at its lower end, and below the case 15, is provided with a head 18 having diametrical perforations 19.

Pivoted at its lower end at 20, the ears 21 on the lower flange 15 of the housing 15 is a lock piece 22 which, at its free upper end, is provided with a loosely projecting lock alinedperforations 19 of the head 18. The lock'pin 23 has an elongated seal passage 24 that intersects the perforation 19 upon alined perforation 19 to thereby lock and seal the lock piece or lever 22 in its operative position shown by full lines in Fig. 3. Ob-

viously, whenthe lock pin 23 is secured in one of the perforations 19, the stem 17 and, hence the pinion 24, will be locked against rotation, thereby locking the pinion to the rack and securing the car door against sliding movement. Obviously, also, the pin 23 can be engaged with the perforation 19 in either the closed position of the door or, substantially, in a more or less open position of prongs of this fork spring 26 are shown as provided with seal passages 27 to which a car seal may also be inserted if desired.

Frequently, a car door will stick so that it is difficult to start the movement thereof from its closed to its open position, or, conversely, and many car doors have been broken or damaged by the use of a crow bar or sledge to effect a sliding movement thereof. WVith this device, a bar can be inserted in one of the perforations 1 9 of the stem head 18 and great force can be thus exerted through the pinion and rack to positively move the door without in any way damaging the door. The device designed may be applied to ordinary car door or may be incorporated in new car doors.

hat I claim is: p

1. The combination with a car body hav ing a sliding door, of a rack secured to said car body, a pinion journaled on the car door and meshing with said rack, said pinion having a stem with a perforated head, a lock piece mounted on the car door and engageable with the perforated head of said stem to lock said pinion against rotation in different adjustments of the door.

2. The combination with a car body having a sliding door, of a bar secured to said car body, and a retaining channel on said door, said channel engaging said bar with a sliding but interlocking engagement and holding said door against lateral separation from the car body.

3. The combination with a car body having a sliding door, of a rack secured to said car body, a retaining channel secured to said door and having an interlocking sliding engagement with said rack, a pinion journaled on said door and meshing with said rack, and a lock lever carried by said door and 0perative to lock said pinion against rotation in different adjustments of the door.

4:. The combination with a car body having a sliding door, of a rack secured to said car body, a retaining channel secured to said door and having an interlocking sliding engagement with said rack, a pinion j ournaled on said door and meshing with said rack, and a lock lever carried by said door and operative to lock said pinion against rotation in different adjustments of the door, said lock lever having a lock element with a seal passage therein whereby it may be locked in an operative position by an applied seal.

5. The combination with a car body hav ing a sliding door, of a rack secured to said car body, a pinion journaled on said door and meshing with said rack, said pinion having a stem with intersecting diametrical perforations therein, and a lock lever pivoted to said door and having a pro'ecting lock pin insertible through an aline perforation of said pinion stem, and said lock pin having a seal passage through which and the perforation of said stem that is alined therewith, a seal may be applied to secure said lock lever in an operative position.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM H. MoGANN.

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