US755207A

US755207A - Dumping-car.

Info

Publication number: US755207A
Application number: US17181703A
Authority: US
Inventors: Karl P Astrom
Original assignee: M H Treadwell & Co
Current assignee: M H Treadwell & Co
Priority date: 1903-09-03
Filing date: 1903-09-03
Publication date: 1904-03-22
Anticipated expiration: 1921-03-22

Description

No. 755,207. PATBNTED MAR. 22, 1904.

.K. P. ASTROM.

DUMPING GAR;

APPLIOATION FILED SEPT. a, 1903.

up MODEL. 3 sums-sum 1 m: NDRRKE PEYERS col rum-ammo WASMINGTON, u. c.

PATENTED MAR. 22, 1904.

K. P. ASTROM.

DUMPING GAR. APPLICATION FIELED SEPT. 3,.1903.

3 SHEETS-SHEET 2.

10 MODEL.

"fill/11 Jill/b251 5 No. 755,207. PATENTED MAR. 22, 1904.

- K. P. ASTROM.

DUMPING GAR.

APPLICATION I'ILED SEPT. a, 1903. I

no MODEL. I a SHEETS-SHEET a.

I Q l llll'mllllllljlllllkl M'hkssea- [Ill/11121.- 5; ,4 4 Y Wz MM cams PETER: coy. PHOTO-LITHO. WASHINGYON, u. c,

. useful Dumping-Car,

UNITED STATES Patented Marci- 22, 1904.

PATENT OFFICE.

KARL P. ASTROM, OF NEWARK, NEW JERSEY, ASSIGNORTO M. TREAD- \VELL & COMPANY, OF NEW YORK, N. Y., A CORPORATION OF YORK.

DUMPING-CAR.

SPECIFICATION forming part of Letters Patent No. 755,207, dated March 22, 1904.

4 Application filed September 3,1903. Serial No. 171,817. (No model.)

To all whom/it may concern.-

Be it known that I, KARL -P. As'rRoM, a subject of the King of Sweden and Norway, and a resident of Newark, in the county of Essex and State of New Jersey, have inventeda new and of whichthe following is a specification.

My invention relates to a'dumping-car, and more particularly to a-car in which the body is tilted into dumping position and returned to its normal position by power other than manual.

The car which I have chosen to illustrate my invention is of that type which is used for dumping cinders; but'I do not'wish to limit myself to this particular use, as it is obvious that the invention might well be applied 'to dumping-cars utilized for other purposes than for dumping cinders.

In the accompanying drawings, Figure 1 is a view of the car in end elevation, showing in full lines the body of the car in its upright position for receiving and carrying its loadand in dotted lines the position which the body assumes when it is tilted in one direction into dumping position. Fig. 2 is a view' of the same in side elevation showing a portion only of the car-body and one truck at that end where the dumping mechanism is located; and Fig. 3 is a top plan view of thesame, partly in section.

The body of the car is denoted by 1. It is supported in a hoop or cradle 2, the latter being provided with trunnions located diametrically opposite and quite similar in structure, one only being shown in the present instance and denoted by 3, it being understood that there is a trunnion similar to the trunnion 3 at the opposite side of the hoop or cradle 2. The trunnion 3 is provided with a bearing-wheel 4, fixed thereon or formed integral therewith, which rests and travels on a track 5, extending transversely of the car, and also with a spur-wheel 6, which intermeshes with a rack 7', extending transversely of the car and preferably in proximity to the track 5. It is to 'be understood that the trunnion at the opposite end of the hoop or cradle 2 is in like manner provided with a bearing-wheel similar to the Wheel 4, resting on a track similar to the track 5, and with a spur-wheel fixed thereon similar to the spur-Wheel 6 and intermeshing with a rack-bar 7 The truck for supporting the track 5 and .rack-bar, is denoted as a whole by 9 and needs no specific description, as it may be of any well-known or approved form suitable for the purpose, it being understood that atruck similar to the truck 9 is utilized at the opposite end of the car with a bolster similar to the bolster 8 for supporting the track and rackbar at that end of the car, the two bolsters being connected by a reach-bar 10, which is curved downwardly between the trucks, as clearly shown in Fig. 2, to permit the body 1 of the car to tilt laterally and at the same time keep its center of gravity low.

Up to the present point the features which have been referred to are those which are well known in the art, the subject-matter of my presentinvention consisting, broadly, in a cylinder mounted to reciprocate transversely across the car and by its connection with the trunnion of the body'of the car forcing the car-body into a tilted or dumping position and back again into an upright position.

My invention further consists in means for connecting the reciprocating cylinder with the car-body in such a manner that it may tilt the body into dumping position in either of two opposite directions at pleasure and in-means for arresting and controlling the dumping movementof the car-body in such a manner as to prevent shocks and in means for locking and releasing the reciprocating cylinder, and hence the car-body connected thereto.

On the bolster 8 there is fixed a pair of brackets (denoted by 11 12) in which a transverselyextending guide-bar or piston-rod 13 is fixed, the said guide-bar or piston-rod forming a support for the cylinder 14:, which serves as a motor and which is intended to travel back and forth on the bar 13 a distance suflicient to throw the car-body into a tilted dumping position, as shown in'dottedlines, Fig. 1.

The cylinder or motor 14 is held in its position against a rotary displacement on the bar 13 by means of an auxiliary bar 15, ex-

tending transversely between the

brackets

11 and 12 parallel with the bar 13 and engaged with an easy-sliding fit by lugs 16 17, depending from and fixed to the cylinder 14. The cylinder 14 is provided on its side toward the rack 7 (see Fig. 3) with a hollow casing 18, extending substantially the length of the cylinder and of suflicient interior diameter to receive Within it an extension 19 of the trunnion 3, surrounded by a bearing box or skein 20. The connection between the cylinder and the trunnion is made by means of this hollow casing 18, and the trunnion is locked in position at the one or the other of the opposite ends of the casing 18 by by means of a removable key 21, which extends vertically through the walls of the casing 18. This provides for shifting the operating-cylinder 14 with respect to the trunnion, so that the movement of the cylinder will rotate the trunnion in either of two opposite directions, depending upon the end of the hollow casing 18 in which the trunnion is located at the moment the cylinder is started in motion.

The piston (denoted by 22) is fixed on the rod 13 and remains stationary while the cylinder 14 is forced by the motive fluid back and forth on the rod or bar 13. 7

Flexible pipes 23 24 lead from the opposite ends of the cylinder 14 to a valve-box 25, in which the valve 26 is located, the said valvebox being provided with an exhaust-pipe 27 and an inlet-pipe 28.

To modify any possible shock which might take place as the body of the car reaches its dumping position, I provide bufiers 29 30, the one, 29, located in the bearing-wheel 4 in position to arrest the movement of the trunnion at the limit of the dumping movement to the left and the other, 30, beinglocated on the bearingwheel 4 in position to arrest the movement of the trunnion at the limit of the dumping movement to the right. To relieve any possible shock at the limit of the return movement of the car-bod y into its upright or receiving position, I provide a removable bulfer 31, which may be removed from its position shown in Fig. 3 to receive the return movement of the left dump into a corresponding position on the track 5 (indicated by the perforations 32) to receive the return movement of the righthand dump.

To lock the cylinder 14, and hence the carbody at the limits of its upright or dumping movements, and to provide for releasing it from these positions to permit the cylinder to tilt it into the one or the other of said positions, Iprovide spring-actuated locking-dogs (denoted, respectively, by 33 34) mounted in brackets 35 36, extending upwardly from the bases of the

brackets

11 and 12, respectively. These dogs have fixed to rock therewith upwardly-extending arms 37 38, their free ends being connected with operating-rods 39 40, having a sliding movement in the brackets 5 11 and 12, respectively, and provided with springs 41 42, the tension of which tend to hold the

dogs

33 and 34 at all times in their locking positions. These rods 39 are conveniently provided with handles 43 44 for operating them against the tension of their springs to throw the

dog

33 or 34 out of its engagement with the depending lug 16 or 17, as the case may be, to permit the cylinder 14 to move to the right or to the left under the pressure of its motive fluid.

The operation of the car is as follows: Assuming that it be desired to dump the car to the left, as shown in dotted lines, Fig. 1, the valve 26 is first turned to admit the motive fluidsteam, for example-into the cylinder 14 to the right of the piston 22 in order to form a fluid cushion to prevent the too sudden movement of the cylinder in the opposite direction when steam is applied in that direction. The valve 26 is then turned to admit the motive fluid into the cylinder to the left of the piston 22, and this pressure will tend to slide the cylinder l4 and carry with it the trunnion which supports the body of the car whenever the rod is pushed in adirection to release the dog 34. This movement of the cylinder because of the engagement of the spur-wheel 6 with the rack 7 will cause the car to tilt, and when the cylinder has reached the limit of its movement in this direction the car will be in its tilted position, as shown. During this tilted movement the cylinder will be compressing the fluid which was first admitted to the right of its piston, which fluid will be slowly exhausted through the exhaust-port 27 and the move ment of the cylinder thereby rendered steady and easy. When it is desired to return the car-body to its upright position, the fluid is admitted to the cylinder to the right of the piston 22, which will force the cylinder 14 back into the position shown in Figs. 1 and 2, carrying the car-body 1 into its upright position whenever the dog 33 is released by pushing the rod 39. When it is desired to dump the car to the right, the key 21 is removed and the fluid admitted to the left of the piston 22, which will slide the cylinder over to the left without carrying the trunnion along with it, and when it has reached the limit of its movement the key 21 may be inserted into the opening 45 to lock the trunnion to that end of the cylinder, and the operation hereinabove described may be repeated except in reverse order to dump the car to the right and return it to its upright position.

What I claim is 1. The combination with a car-body supported to tilt and travel laterally, of a cylinder arranged to travel laterally back and forth and connected with the car-body for imparting to the car-body its laterally-traveling movement, means for actuating the cylinder and means for tilting the car-body during its traveling movement.

2. A car-body mounted to tilt and travel ally-traveling movement, means for tilting the car during its traveling movement and means for connecting the car with the motor in different relative positions whereby the said motor may force the car into dumping position in each of .tWo opposite directions.

3. The combination with a car-body and its supporting-frame provided with racks for tilt ing the car-body as it travels transversely along its support, of amotor mounted to move transversely on the supporting-frame, the said motor being connected with the car-body to cause it to travel together with .the motor transversely along the support and a valve for regulating the supply of the motive fluid to the motor.

&. The combination with a car-body and its supporting-frame provided with a rack for causing the car-body to tilt as it travels along the frame, of a spur gear-wheel carried by the car-body and engaging the said rack, a cylinder mounted on the frame to travel back and forth, a bearing engaged with the cylinder and with the car-body and a key for holding the said bearing in its position in engagement with the cylinder for causing the car-body to travel with the cylinder.

5. The combination with the car-body provided with a spur-wheel and its supportingframe provided with a rack engaging the spurwheel, of a motor consisting of a cylinder bodily movable back and forth, a fiXed pistonrod forming a support for the cylinder, a guide-rod for holding the cylinder against rotary displacement, a piston fixed to said piston-rod within the cylinder and means for connecting the cylinder with the car-body whereby the motor is moved rapidly together with 4 the cylinder.

6. The combination with the car-body and its supportingframe, the carbody being mounted to tilt and travel transversely on the frame, of a movable buffer fixed to'the track 43 on which the car-body travels for limiting the tilting movement of the car-body in either of two opposite directions and a motor for mov'' ing the car along its track, I

7 The combination with the car-body and 5 its supporting-frame, the car-body being provided with trunnions on which it tilts and moves laterally, of a bufier fixed to the trun-' nions for relieving the shock at the limit of the tilting movement of the car-body and a motor for moving the car-body laterally and thereby tilting it. 7

8. The combination with the car body and its supporting-frame, the car-body being mounted on trunnions to travel laterally and b0- tilt, of a bodily-reciprocating cylinder engaged with a trunnion for operating the car and a locking device for engaging the cylinder at the .limit of its bodily-reciprocating movement to hold the parts in position.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 30th day of July,

KARL P. ASTROM.