US1059422A - Car-door-operating mechanism. - Google Patents

Description

A. E. ZIMMER.

GAB DOOR OPERATING MECHANISM.

APPLICATION FILED APR. 27, 1912.

Patented Apr. 22, 1913.

2 SHEETS-SHEET 1.

WITNESSES.-

A TTORNEY A. E. ZIMMER. GAR DOOR OPERATING MECHANI SM.

APPLICATION FILED APR.27, 1912.

1,059,422. Patented Apr. 22, 1913.

2 BHBETS-BHEET 2.

ATTORNEYS STATES PATENT OFFICE.

humans column, or cnrcaeo, rumors; A CORPORATION or ILLINOIS.

OAR-DOOB-OPEBATING MECHANISM.

Patented Apr. 22, 1913.

4 To all whom it may concern:

of a car door mechanism, when unloading,

with perfect safety to the operator.

Formerly, in car door mechanisms in many cases, -it has not been customary to provide any sort of clutch mechanism between the o crating shaft and the door, so that when t e operating shaft is unwound, the load on the door tends to speed up the rotation of the operating-shaft and thereby take with it the wrench or claw-bar used by the operator in' starting the unwinding operation, and this often results in severe inury to theoperator. In other cases, it has n customary to place a clutch or loose connection in the car door operating mechanism, but so far as I am aware, these clutches or loose connections are provided so as to allow less than a complete independent rotation between the member immediately operated uponby the wrenchor claw-bar and the operating or winding shaftv proper so that in cases where it is necessary to have a complete or more than a single rotation of the operating shaft in unwinding, it is found that the load will turn the operating shaft near the final 0 en position 0 the car door and hence wil twist the wrench or claw-bar from the hands of the operator and injure the latter.

The improvements which I have shown and herein describe are so arranged that the same may be adapted for operating shafts which require either less than a complete r0 tat'ion or a plurality of rotations in unwind-' ing and may be operated without injury to the operator.

My invention furthermore consists in the improvements in the arts and devices and in the novel combinations of parts and devices herein shown, described or claimed.

I In the drawing forming a part of this specification, Figure 1 is a partial planview of a car body underframe, showing my improvemeuts in connection therewith, the

.ranged actuating shaft 23.

parts being broken ,awa to more clearly show the construction. ig. 2 is a partial, vertical,- sectional view, taken substantially on the line .2-2 of Fig. 1,and also showing in elevation a .portion of the side of the car and the end of the operating shaft and immediate parts connected therewith. Fig..3 1s a plan view of the clutch operating mechanism proper. Fig. 4 is an end view of the structure shown in Fig. 3. Fig. 5 is a longitudinal, sectional view of one of the clutch members. Fig. '6 'is a side elevation showing my improvements applied to the end of an actuating shaft, and Figs. 7 and 8 are detail, perspective views of the end of the actuating shaft and one of the clutch members, respectively.

In the'drawings, 10, 10

denote the center V Arthur in. autumn, or cr'ncaoo, rumors, AssIGNon r0 niw'rnnrnrsn RAILWAY sills of a dump car towhich my improvements are adapted to be ap lied, and mounted on these center sills anti laterally of the car is the operating shaft 11, the same being provided with a drum 12 having an extension 13 to which is pivoted a link 14, the latter having pivoted thereto.

at its opposite end a link 15, to which is pivotally seoured hook shaped links 16,'the atter belng pivotally connected at their lower end toieye-bolts 17 secured in the free. ends of h1nged drop bottom doors 18. The

mechanism which I have just described for extending lifting and closing the hinged doors may be of any suitable or well known form other than that which I have described, and it is immaterial to my invention what sort of winding CODIIBCtlO-DS' are used. On each side of the winding drum 12 and keyed to the shaft 11 are chain winding drums. 19, over which run' winding and unwinding chains 20 and 21 between the actuating shaft being secured at their outer ends to a winding drum 22, keyed to a transversely ar- Other means than that which I have described may be substituted for the winding and unwindin' chains 20 and 21. betwen the actuating sha 23 and the operating shaft 11, or in some instances, the operatin shaft 11 may itself be extended to either 1'. e side of the car, or, when arranged longitudinally of the car, may have its ends extended to the ends of the car, and have the clutch device, about to be described, applied thereto, and thereby omitting the actuating shaft 23 entirely. The actuating shaft 23 is extended tothe side of the car, and as shown morejclearly in Fig. 7, is provided with a square portion 24 and outer cylindrical portions 25 and 26, respectively, the latter being somewhat smaller in diameter than the portion 25.

Non=rotatably mounted on the squared portion 24 of the actuating shaft 23 is a shaft, said hollow clutch member 27 the latter being formed with a bearing portion 28 adapted to be mounted in a journal bearing member 29 (see Fi 1) secured to one of the car frame mem ers. The'clutch member 27 has preferably integrally formed therewith a ratchet 28, of the usual construction, and with whichv cooperates a pivoted pawl or dog 29 adapted to be locked by the usual form of locking cam 30, as shown in Fig. 2. The interior of the hollow clutch member 27 is provided with a spiral groove 31, which .may have one 'or more complete convolu tions, always slightlyin excess of and depending upon the number of rotations necessary to wind and unwind the operating oove 31 being provided at each end thereo witha limiting stop 32. The second member of the clutch device, as more clearl shown in Fig; 8, comprises a hollow, cylindrical member 33, adapted to fit on the cylindricalportion 25 of the end of the actuating shaft, said member 33 being provided also with an integrally formed In or, projection 34 which moves in the spira groove 31 and'which limits the amount of rotation of the member 33 relatively to the member 27 when the same engages the limiting stops 32 at the ends of the groove 31. The outer end of the clutch member 33 is provided with a squared head 35, the latter being provided with a cylindrical bore 36 adapted to fit the reduced cylindrical end 26 of the actuating shaft" 23. The squared end or head 35 is adapted to'receive and be rotated by a wrench, claw-bar or other suitable device for winding and unwinding the operating shaft. I p

In assembling the mechanism, the clutch member 33 has its lug 34 first inserted through the circular opening 37.at the outer end of the other clutch member 27, and the member 33 with the lug 34 moving in the groove 31 is then rotated until the member 33 is within the member 27. Thereupon, the shaft23 has its cylindrical ends 25 and 26 and the squared portion 24 inserted through,

the member 27 and member 33, and as will be obvious, these members are self locked in position. By forming the ratchet wheel integral with one of the clutch members, it will be seen that the entire device is exceedingly compact and one which can be cheaply manufactured.

I have shown and described one form of my invention, but it will be apparent that many changes andtvariations may be made in the details of construction thereof without departing from the spirit of the invention, and all such changes and modifications are contemplated as fall within the scope of the appended claims.

1. In a car door operating mechanism, in combination, aishaft and a clutch device connected therewith, said 'device comprising a member non-rotatably mounted on the shaft, and another member rotatably mounted and adapted to move. longitudinally along the shaft, one of said members having a spiral groove, and the other a lug working in said groove, whereby the two members are rotatable independently of each other.

2.. In a car door operating mechanism, in combination, a shaft and a clutch device connected therewith, said device comprising a member non-rotatably mounted on the shaft,

and a second member rotatably mounted on the shaft andadapted to move longitudinally therealong, one of said members being provided with a spiral groove, the number of convolutions of which exceed the number of rotations required of the shaft in closing the car doors, and being provided with a limiting stop at each end thereof, and the other of said clutch members being provided with a lug working in said groove and limited in its rotations relative to the first named clutch member by said stops.

3. In a car door operating mechanism, in

' combination, a shaft and a clutch device connected therewith, said device comprising a member non-rotatably mounted on the shaft, said member having a spiral groove therein, and a second member rotatably mounted on the shaft and adapted to -move longitudinally .therealong, and provided with an integral lug coiiperating with said spiral groove.

4. In a car door 0 crating mechanism, in

combination, a sha t and a clutch device connected therewith, said device comprising a hollow member non-rotatably mounted on the shaft and provided with a spiral groove on the interior thereof, said spiral groove being provided with limiting stops at each end thereof, and a second member rotatably mounted on the shaft and provided with an integral lug on the exterior thereof adapted to work in andcotiperate with said spiral groove.

5. In a car door operating mechanism, combination, a shaft and a-clutch device connected therewith, said device comprising-a 'member non-rotatably mounted on the shaft and having formed integrally therewith a ratchet wheel, and a second member rotatably mounted, one of said members being provided with a spiral groove and the other with a lug movable. in said groove.

6. In a car door operatin mechanism, in combination, a shaft and a c utch device connected therewith, said clutch device compris iso ing a member non-rotatably mounted on said shaft, a second member rotatable independently of said first named member and movable longitudinally relatively thereto, one of said members being provided with a spiral groove, and having limiting stops at each end thereof, and the other member being provided with a lug working in said groove and having a head adapted to receive a claw bar and be rotated thereby, one of said members having formed integrally therewith a bearing-hub and a ratchet wheel 7. In a car door operating mechanism, in combination, a shaft having a squared portion and a clutch device connected therewith, said clutch device comprising a hollow member secured to said shaft on the squared portion, and being provided alsowith a spiral groove on its interior, said spiral groove having stops at each end thereof, and said member being furthermore provided with an integrally formed ratchet wheel, and a second clutch member adapted to fit within the first named clutch member and rotatable relatively thereto, and having also a lug formed integrally therewith, said lug bein adapted to move in the spiral groove, sai second named clutch member having a squared end by which the same may be rotated by a wrench or other suitable means.

8,. In combination, hinged car doors, an operating shaft and connections between [snark] said shaft and the free ends of the car doors,

an actuating shaftand connections between said operating shaft and the actuatin Shaft, a clutch device on the actuating sha t comprising a hollow member non-rotat-ably mounted on the shaft and spiral groove on the interior thereof, and having also formed integrally therewith a ratchet wheel, and a second clutch member rotatably mounted on the shaft having formedintegrally therewith a lug to move in the spiral groove, said second named clutch member being provided also rovided with a.

adapted with a squared end by which the latter may be rotated and a pivoted pawl and pawl locking member cooperating with the ratchet wheel.

9. In a car door operating mechanism, in combination, an actuating shaft, and a clutch device connected therew1th, said clutch de- H. M. MUNDAY.

It ishereby certified that in Letters Patent No. 1,059,422, granted April 22,

1913, upon the application of Albert E. Zimmer, of Chicago, Illinois, for an improve ment Car-Door-Operating Mechanism, errors appear in the printed specification requiring correction as follows; Page 1, line 95, strike out the words between the actuating shaft and insert the commas and words, reepectv'mely, the latter; same page, line 101, for the word betwen' read between; page 3, line 6, strike out the word and; and thatthe said Letters Patent should be read with these corrections therein,

that the same may conform to the record pf the case in the Patent Ofiice.

Signed and sealed this 20th day of May, A. D., 1918.

C. C. BILLINGS,

Acting Commissioner of Patents.

ing a member non-rotatably mounted on said shaft, a second member rotatable independently of said first named member and movable longitudinally relatively thereto, one of said members being provided with a spiral groove, and having limiting stops at each end thereof, and the other member being provided with a lug working in said groove and having a head adapted to receive a claw bar and be rotated thereby, one of said members having formed integrally therewith a bearing-hub and a ratchet wheel 7. In a car door operating mechanism, in combination, a shaft having a squared portion and a clutch device connected therewith, said clutch device comprising a hollow member secured to said shaft on the squared portion, and being provided alsowith a spiral groove on its interior, said spiral groove having stops at each end thereof, and said member being furthermore provided with an integrally formed ratchet wheel, and a second clutch member adapted to fit within the first named clutch member and rotatable relatively thereto, and having also a lug formed integrally therewith, said lug bein adapted to move in the spiral groove, sai second named clutch member having a squared end by which the same may be rotated by a wrench or other suitable means.

8,. In combination, hinged car doors, an operating shaft and connections between [snark] said shaft and the free ends of the car doors,

an actuating shaftand connections between said operating shaft and the actuatin Shaft, a clutch device on the actuating sha t comprising a hollow member non-rotat-ably mounted on the shaft and spiral groove on the interior thereof, and having also formed integrally therewith a ratchet wheel, and a second clutch member rotatably mounted on the shaft having formedintegrally therewith a lug to move in the spiral groove, said second named clutch member being provided also rovided with a.

adapted with a squared end by which the latter may be rotated and a pivoted pawl and pawl locking member cooperating with the ratchet wheel.

9. In a car door operating mechanism, in combination, an actuating shaft, and a clutch device connected therew1th, said clutch de- H. M. MUNDAY.

It ishereby certified that in Letters Patent No. 1,059,422, granted April 22,

1913, upon the application of Albert E. Zimmer, of Chicago, Illinois, for an improve ment Car-Door-Operating Mechanism, errors appear in the printed specification requiring correction as follows; Page 1, line 95, strike out the words between the actuating shaft and insert the commas and words, reepectv'mely, the latter; same page, line 101, for the word betwen' read between; page 3, line 6, strike out the word and; and thatthe said Letters Patent should be read with these corrections therein,

that the same may conform to the record pf the case in the Patent Ofiice.

Signed and sealed this 20th day of May, A. D., 1918.

C. C. BILLINGS,

Acting Commissioner of Patents.

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