US977405A - Railway-car. - Google Patents

Description

qr v b e a o 0 (a 0 Q o o o o o 0 a o a N 9 0 3 3 0 ed a 3* 6 a c 6 a v Q Q 6,. 6,. -a o 0 Q) "o E] P. Ii.'IRWIN & J. E. TESSEYM'AN. RAILWAY CAR. APPLICATION IILED JUNE 6, 1910.

977,405. Patented Nov. 29, 1910;

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P. L. IRWIN & J. E. TFSSEYMAN.

RAILWAY GAR.

APPLICATION FILED JUNE 6, 1910.

Patented Nov. '29, 1910.

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F. L. IRWIN & J. E. TESSEYMAN;

RAILWAY GAR.

APPLICATION FILED JUNE 6, 1910.

Patented Nov. 29, 1910.

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THE NORRIS PETERS :0, WASHINGTON. n. c

UNITED STATES PATENT OFFICE.

FRANK L. IRWIN AND JOHN E. TESSEYIVIAN, OF COLUMBUS, OHIO, ASSIGNORS TO THE RALSTON STEEL CAR COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

RAILWAY-CAR.

T '0 all whom it may concern:

Be it known that we, FRANK L. IRWIN and J 01m E. TESSEYMAN, citizens of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Railway-Cars, of which the following is a specification.

This invention relates to railway cars and more particularly to dumping cars, the object of the invention being to provide a car having hinged bottom sections together with means for effectively controlling the movement of said sections and for locking said sections in their closed positions without undue strain upon the locking parts.

Further objects and advantages of the invention will be set forth in the detailed description which now follows.

In the accompanying drawings, Figure 1 is a view partially in longitudinal section and partially in side elevation of a dumping car constructed in accordance with the invention, Fig. 2 is a partial plan view thereof with one of the hinged bottom sections broken away, Fig. 3 is an end elevation of said car, and, Fig. 4 is a transverse vertical section of a portion of said car with some of the parts omitted.

Like numerals designate corresponding parts in all of the figures of the drawing.

Referring to the drawings, the numeral 5 designates the car truck, 6 the side walls and 7 the end walls of the car body. The floor of the car comprises a plurality of transverse sills, said sills comprising channel beams 8 and horizontal floor plates 9. A longitudinally extending truss 10 has secured thereto at intervals, brackets 11, these brackets being located at the center line of the car. Hingedly connected to these brackets are swinging floor sections 12 and 13 and it is in the means for controlling the movement of these floor sections that the present invention more particularly resides.

Extending transversely of the car at intervals, are webs 14 and 14 Bearing plates 15 are secured to the faces of these webs and together with hearing brackets 16, provide supports for longitudinally extending shafts 17 and 18. Mounted to swing loosely upon the outer ends of these shafts are levers 19 and 20, these levers carrying pawls 21 and 22, which engage ratchet wheels 23 and 24.

Specification of Letters Patent.

Application filed June 6, 1910.

Patented Nov. 29, 1910.

Serial No. 565,170.

To prevent retrograde movement of the shafts during the time that the doors are being moved to their closed positions, pawls 25 and 26 are pivoted to the end wall of the car and engage ratchet wheels 27, only one of which is shown.

The swinging sections 12 have their side and outer edges 28 and 29 downturned for the purpose of strengthening these sections and rendering them rigid. Brackets 30 carried by these swinging sections, have antifriction rollers 31 pivotally mounted thereon, these rollers bearing upon the upper side of levers 32. The outer ends of these levers are slotted at 33 for the reception of a pivot 34 which pivotally and slidably connects said lever to bearing members 35 carried by the adjacent transverse beams. The lever 32 has its upper face curved as shown and is provided with a hook extension 36. A slot 37 is formed in the inner end of each of the levers 32 for the reception of a pin 39 which pivotally and slidably connects the lever to a link 40. The opposite end of this link is pivotally connected at 41 to a crank 42 which is fast upon the shaft 17, it being understood that this structure is duplicated at each side of each of the door sections. It is to be noted that the link 40 is provided with a shoulder 43 (see Fig. 4).

The operation of the device is as follows: When it is desired to lower the door sections to thereby discharge the contents of the car, the pawls 25 and 26 are moved out of engagement with their ratchet wheels 27 and 28 and movement is imparted to the shafts 17 and 18 by means of the levers 19 and 20 and the pawl and ratchet wheels 21, 22, 23, and 24.

Referring to Fig. 4 particularly, the direction of movement of the shaft 17 will be in the direction of the arrow. This will swing the crank 42 first upwardly and then over toward the left, the pivot 39 sliding in the slot 37 and the lever 32 by reason of its slotted engagement with the pivot 34 sliding bodily toward the left in Fig. 4 until the crank passes over the center, whereupon the door sections, the lever 32, the link 40 and the crank 42 will drop to the position illustrated in dotted lines in Fig. 4 and the contents of the car will be discharged. It is apparent that since the movements of the levers 19 and 20 are entirely independent of each other, the contents of one side of the car may be discharged independently of the other side thereof.

\Vhen it is desired to again close the doors, the pawls and 26 are moved into engagement with the ratchet wheels 27 to prevent retrograde movement of the shafts and the shafts are rotated to return the parts to the position illustrated in full lines in Fig. 4- and since the operation of all of the door controlling mechanisms is the same, the operation will be described with relation to the structure shown in full lines in Fig. l. It will be noted thatwhen the parts are dropped to the dotted line positions shown in Fig. 4:, the roller 31 lies in the hook 236 and the door is thereby supported in its lowermost position.

Then the shaft 17 is started to rotate toward the right in Fig. at, to return the parts to the full line position, the link etO follows the crank 42 until the shoulder as abuts against the shaft; continued rotation of the crank will then rock the link 40 upon the fulcrum provided by the shaft 17 and shoulder as, the movement of the lower end of the link 40 causing the pivot tl to travel to the left-hand end of the slot 3'? and causing the lever 32 as a whole, to travel upwardly and outwardly to its limit of movement toward the left. Continued movement of the crank will ultimately bring the parts to the full line position shown in Fig. 41-, at which time the pivots 39 and 11 are in alinement with each other and with the shaft 17 and the crank 12 is on its dead center. The doors are then positively located in their closed positions and the weight of the doors tends to hold the shafts 17 and 18 against rotation, rather than to tend to rotate said shafts. These parts form in fact a powerful toggle mechanism which provides great leverage to aid the operator in closing the doors and which positively locks the doors against opening after they have reached their closed positions, as will be readily understood.

From the foregoing description, it will be seen that simple and etiicient means are herein provided for accomplishing the objects of the invention, but while the elements xhown and described are well adapted to serve the purposes for which they are in tended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within its purview such changes as may be made within the scope of the appended claims.

\Yhat we claim, is:

1. The combination with a car body, of a plurality of floor sections hingedly connected thereto, a rotative shaft arranged beneath said floor sections, pivotally and slidably mounted levers located beneath said floor sections and upon which said sections bear, crank arms on the shaft, and links connecting said arms with the levers, said links being adapted to bear against the shaft when the doors are closed.

2. T he combination with a car body, of a plurality of floor sections hingedly connected. thereto, a rotative shaft arranged beneath said floor sections, pivotally and slidably mounted levers located beneath said floor sections and upon. which said sections bear, cranks on the shaft, links connecting the shaftv and levers, anti-friction members carried by the floor sections and bearing upon the levers, and a hook extension at the inner end of each of said levers, with which the anti-friction member engages when the door is in its lowermost limit of movement.

3. The combination with a car body, of a plurality of floor sections hingedly connected thereto, a rotative shaft arranged beneath said floor sections, a pivotally and slidably mounted lever located beneath said floor sections and upon which said sections bear, and toggle mechanism connecting said levers and said shaft, said toggle mechanism comprising a crank fast upon the shaft, a link one end. of which is pivotally connected to said c ank and the other end of which is slidably engaged with said lever.

4. The combination with a car body, of a plurality of floor sections hingedly connected thereto, a rotative shaft arranged beneath said floor sections, pivotally and slidably mounted levers located beneath said floor sections and upon which said sections bear, and toggle mechanism connecting said levers and said shaft, said toggle mechanism comprising a lever having a shoulder intermediate its ends which abuts against and fulcrums upon said shaft.

5. The combination with a car body, of a drop door, a lever pivotally connected with the underframe of said car at its outer end and forming a support for said door, the inner end of said lever having a slot and a member engaging said slot to support the inner end of the lever and thereby support the door in closed posit-ion.

(5. The combination with a car body, of a drop door, a pivot member projecting from the underframe, a lever having a slot in its outer end portion through which said pivot member passes, said lever forming a support for the door, the inner end of the lever being provided with a slot and a member engaging said inner end slot to support the inner end of the lever and thereby support the door in closed position.

In testimony whereof we atiix our signatures in presence of witnesses.

FRANK L. IRWIN. JOHN E. TESSEYMAN.

W itnesses a E. S. CUnvnn, B. C. HANNA,

W. E. lVnnKs.

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