US932728A - Car. - Google Patents

Description

N A M Y E S S E T R Tu 0 9 1 6q 2 0 H mm n UP N 0 I T A 0 I L P P A Patented Aug. 31. 1909.

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WITNESSES.-

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J. E. TESSBYMAN.

GAR. APPLICATIOii FILED M125. 1907.

932,728. I v Patented Aug. 31. 1909.

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QQ 0 j /m E, Essay/van a. E. TBSSEYMAN.

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AYPI-I'OATIOR FILED NOV. 26, 1907. 932,728. Patented Aug. 31. 1909.

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IN VENT 0R. c/O/7fl E, Essay 77017,

ATTORNEY.

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UNITED STATES PATENT: OFFICE.

JOHN E. TESSEYMAN, or GOL'UMBUS,%'0HIO,- itssreuonro THE RALSTON STEEL GAR COMPANY,

or COLUMBUS, .0HIO, A CORPORATION or 01110..

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Specification of Letters Ratent. Patented A11g331 ApplicationjfiledNovember 25, 1907. eria1 fio. 463,62.

To all whom it may'wncem:

Be it known that'I, JOHN E. TnssnYMAN, a citizen of theUnited States, residing at Columbus, in the county ofFranklin and State of Ohio, haveinvented certain new and usefullmprovements inCars, of which the following is a specification.

My invention relates to improvements in devices for locking in their closed position such as is shown especially in ReissuePatent No. 12,623, Becker, March 26, 1907, and in Patent No. 861,464, Irwin andTesseyman,

July 30, 1907, and-comprises essentially a pivoted lever secured upon the underside of the drop door, and so arranged that at one end it engages the crank shaft; a second lever is provided upon the car door to engage with the locking lever to unlock the same,

and when the engagementwith said locking: lever is broken, the locking lever through gravity will drop into aposition to engage the crank shaft and lock the same against outward movement.

It further consistsin the provision of means for tripping the locking lever, said means being positioned so that j they are readily accessible to the operator without his going under the car.

, It further consists in provision for locking said tripping lever in itselevated position, whereby the locking lever is maintained free from engagementwiththe crank shaft. It

will be understood that so long asthe l0cking lever engages the crank shaft, the latter, will be maintained 1n lts posltion beneath the drop door, and said door willthereby be kept closed; but when the locking lever is re leased from engagement with the crank shaft, the latter may be turned by theordinary means shown in the patents mentioned, to permit the drop door to fall and assume an open position. When the crank shaft is operated to restore the doorto its closed po-] sition, the said shaft is in position to be engaged by the locking lever, and thereupon the said locking lever maybe permitted to assume its locking position. p

In the drawings which are hereto attached andhereby made a partof this specification,

Figure 1 is aside view of a portion of a car having my improved lockin g meansattached thereto; Fig. 2 is an upper planview of a car having my improved locking. means attached thereto, said locking means being shown in dotted lines 3 is a perspective of my improved locking means engaging the crank shaft, the underframe portions of the car beinglshown in dotted lines; Fig. 4 is a view ofthe car in section at the cross bearer, showing my'locking device in place; Fig. 5 is a perspective view of the underframe portions of the car at one end thereof, parts being broken away to show the means of the drop doors of a bottom dumping. car,

locking the pull rod in its outermost position. Referring to the drawings, in which the "same numeral indicates the same part throughout, 1 denotes the underframe construction of acar having thereon the drop "doors 2, held in their closed position by the engagement therewith of the rollers 3 on cranlzshaft 4, which is hung in the brackets shown" at 5, and rotated by means of a lever 6, in a manner clearly described in the patents above mentioned, and which need not be further described herein. It is apparent that if no locking means is provided for the crank shaft when in its closed position, said shaft is readily rotatable by the operation of the lever 6, and for the purpose of safety and precaution in the operation of the car it has been found desirable to provide means for locking the crank shaft in its closedposition, so that said locking means must be released before the crank shaft can be operated and the contents of the car dumped.

I I prov de locking means and arrange the same upon the under side of the drop door in' a' manner clearly shown in Fig. 3, in

which the lever'7 is pivoted at 8 in the bracket 9 secured to the under side of the drop door, said. lever having at one end thereof'the hook 10, the other end 11 of said lever being heavier than the portion containing the hook, so that if left free, the end 11 of said lever Iwill drop, thereby throwing the hook portion 10 upwardly. Thenormal position of said lever therefore is in engagement with the crank shaft 4:; to disengage the lever from the crank shaft, thereby releasing the latter, I provide the trip lever 12 in the form of a bell crank, pivoting the same at 13 in the bracket 14: secured upon the under side of the drop door. The trip lever 12 stands preferably at about a right angle with the locking lever 7, so that if said lever 12 be turned on its pivot 13, the arm 15. will engage the locking lever when said arm 15, ism'ovingupwardly, and will ing of the arm willltilt -the locking lever 7 out of engagement with the crank shaft,

while'the lowering of the arm 15 of the trip lever will permit the hook 10 of the locking .lever 'Z to 7 rise and :engage the crank shaft.

I manipulate said trip lever 12 preferably by securing upon one ofits arms at 16, the

chain-17; anyfiexible means substituted for the chain would answer the same purpose.

' vTo the chain at a preferred point I attach a I is -rod 18, which rod is positioned :beneath the car doors oni'the underframe construction and extends outwardly "beyond the end of "the cal? andh-as its outer end portion bent as shown at 19, which bentportion will engage ;:the end 20 of the car, when said rod "18 is pulled to -its outermost limit At 21 is shown a bracket having an opening 22there- "through, through which the rod 18 is inserted, and by which saidpullirod 1'8 is supported at its outer end; When thebent por- "tion 19 o-f the rod 18 is thrown out of en g'agement with the car end 20,"the rod may then be pushed inwardly to slacken the 7 chain or flexible portion 17,thereby permitting the lever 12 to-drop. I V

The operation'of the locking device is as follows: the operator, seizing the bent 1301 tion 19 fpu'lls upon the rod 1 8, drawing the same outwardly from the .car, -thereby rendering the chain v1'7 taut, "and thereby 'ac'tuatingithe bell crank lever 12 so as to tipthe arm 15 'thereofupwa-rdly; when'the arm 15 comes into contact with the lever 7, l-i f the upward movement of bell -crank "lever 12 .is continued, the end "11 of said-lever? will (bethrown upwardly, there'by disengaging thehooklO from the crank shaft 14.. When this disengagement has been completed, the

.bentportion 19 of thetrod 18 maybe turned .into'engagementwith the end-of thecar by 'merely twisting or vrotating the rod 18, and

the lockinglever 7; is thereby heldpositively .outbfengagementwith the crank shaft 4. lThe operator may 'rnow. seize the hand lever 56 and notatefthe crank shaft 1 outwardly, to

' 'perm'itthe drop, door to assume an-open po- 50 sition, it being understood that the drop door rests at its outer endentirely upon the rollersj'23on the crank shaftZL, and thatas these rollers are carried throughan arcof a circle described at 24 by therotation of the crank s'haft,- t he door will be lowered to its open ,position. shown at 25. The locking lever-7 and the trip Ileverj12 being mounted .uponthe underside of -theudoorfwill, of

course bebrought to 'alower position by'the downward movement of the door; however,

'- during the downward movement of the door, the (locking lever is maintained .in the r s tion Just described, .and when the door 1s againraised by the rotation of the crank shaft in tlie opposite direction, the locking ably made heavy enough to keep the hook lever 7 will be found to be disengaged from the cr'a1'1k sha'ft 4. In order to lockithe crankshaftinits uppermost position, it is necessary for the operator to turn the bent portion 19 of the rod 18 outwardly away from its engagement with the end of the car, and push the rod inwardly, whereby the vpull upon the end 16 of the bell crank trip lever will be removed, and the weight of the end 11 of the locking lever 7,-bear1ngdown on the arm 15, will 'move said arm down- 'wardly, thereby permitting the hook portion 10 to move upwardly into engagement with the crank shaft.

It isseenthat my device can both be locked and unlockedby the operator from the end of the car, and that the operator therefore isnot exposed tothe danger of reaching or creeping under the car to unlock the crank release the crank shaft and operate the same. The end 11 of'the-loeking lever 7 1s prefer- 10 constantly in engagement with the crank shaft, and such engagement 'will not be broken so long as the car is in its normal position,-eXcept by tilting the trip lever 12 to throw thelooking lever 7 out of engage ment, and when the trip lever is thrown out of contact with the locking lever, said locking lever resumes its locking position.v

The pull rod 18 may besupported 'by suitable brackets 26 disposed upon the under-' frame constructionof the car. Itis further seen that when the door falls to its lower- 12 will be lowered also, butinasmuch'asthe c'hai-n, portion 17 is connected to the trip lever 12, the flexibility of saidchain portion will allow for the change of posltlon ofthe lever 12 due to the upwardand downward movement of the drop door; so that the position of the rod 18 is-not disturbed, andno stress is set-up therein by the movement of the door.

- lVhat I claim is:

1. In acar having a bottom drop door and a crank shaft supporting said door at one i of 1ts ends, a locking device for said crank shaft mounted upon said door, a tripping device for unlocking said locking .device, and meansfor operating said tripping device.

2. In a car-having a ibottom, drop door and a crank shaft, supporting said door at one of its ends, 'a locking device for said crank shaft comprising a pivoted lever'hav- 'ing one end thereof adapted to engage said crank shaft, and tripping means adapted to throw said lever out of-engagement with said crank shaft.

In a car having a bottom drop door and a clank shaft supporting said door at one of its ends, locking means for said crank shaft comprising a pivoted lever having one end thereof adapted to engage said crank shaft, tripping means adapted to its ends adapted to engage said crankshaft,

a tripping lever mounted upon said door adapted to engage the opposite end of said locking lever to lift the same out of engagement with said crank shaft, traction means adapted to actuate said tripping lever to unlock said locking lever, and means for positioning said traction means to maintain said locking lever in unlocked position.

5. In a car having a bottom drop door and a crank shaft supporting said door at one of its ends, a locking lever adapted to engage said crank shaft pivotally mounted upon the under side of said drop door, a trip lever pivotally mounted upon the under side of said drop door adapted 'to unlock said locking lever from said crank shaft, a pull rod attached to said trip lever adapted to manipulate the same to unlock said locking lever, and a bent end formed upon said rod for engaging said car when said rod is drawn to its outermost position.

6. In a car having a bottom drop door and a crank shaft supporting said door at one of its ends, a locking lever pivotally mounted upon said door and having one end adapted to engage said crank shaft, a trip lever mounted upon said door and adapted to move said locking lever out of engagement with said crank shaft to release the latter, and means carried on said car for operating said trip lever.

7. In a car having a bottom drop door and a crank shaft supporting said door at one of its ends, a locking lever pivotally mounted upon said door and having one end adapted to engage said crank shaft, a trip lever mounted upon said door and adapt-ed to move said locking lever out of engagement with said crank shaft to release the latter, and meanscarried on said car for operating said trip lever to unlock said locking lever, said means being adapted to be locked to maintain said locking lever in unlocked position.

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

JOHN E. TESSEYMAN.

Witnesses:

I-IonAon S. KERR, Gno. WV. RIcH'rMInn.

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