US1188787A

US1188787A - Dump-car.

Info

Publication number: US1188787A
Application number: US2362615A
Authority: US
Inventors: Sylvester H Hunt
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-04-24
Filing date: 1915-04-24
Publication date: 1916-06-27
Anticipated expiration: 1933-06-27

Description

S. H. HUNT.

DUMP'CAR.

APPLICATION FILED APR. 24, 19:5.

Patented June 27, 1916.

3 SHEETS-SHEET l- THE COLUMBIA PLANDGRAPH co.. \vAsluNu'roN. n. c.

S. H. HUNT.

DUMP CAR.

APPLICATION FILED APR.24,1915- Patented June 27, 1916,

3 SHEETS-SHEET 2- 'rn: coulamm PLANOURAPH co.. wAsmNaToN, o. c

S. H. HUNT.

DUMP CAR. APPLICATION FILED APR. 24 l9l5.

1 1 88,787 Patented June 27, 1916.

3 SHEETS-SHEET 3.

mean sira'rns SYLVESTER H. HUNT, OF IRONWOOD, MICHIGAN.

DUMP-CAR.

Application filed April 24, 1915.

To all whom it may concern Be it known that I, SYLvEsTnR H. HUNT, a citizen of the United States, residing at Ironwood, in the county of Gogebic and State of Michigan, have invented new and useful Improvements in Dump-Cars, of which the following is a specification.

The present invention relates more particularly to that class of cars having movable walls, which when released, permit the load to gravitate from the car, and the primary object is to provide a car of this character, having a verylow center of gravity, a relatively large capacity per lineal foot of track, and so constructed that it will dump, clean itself, and close in practically one operation.

An embodiment of the invention that is at present considered the preferable one, is illus rated in the accompanying drawings, wherein Figure 1 is an end elevation of the car. Fig. 2 is a side elevation of the same. Fig. 3 is a cross sectional view showing the walls in their closed position. Fig. 4 is a similar view with the walls open. Fig. 5 is a horizontal sectional view. Fig. 6 is a detail horizontal sectional view and plan of the lever-holding means. Fig. 7 is a detail perspective View, illustrating one of the guide ways for the central. bottom section. Fig.

8 is a view partially in elevation and partially in section of a modified controlling means. Fig. 9 is a view at right angles to Fig. 8.

Similar reference numerals designate cor responding parts in all the figures of the drawings.

In the embodiment illustrated, a suitable under frame or truck 10 is provided that is carried by wheels 11, and on this frame or truck is mounted the body which constitutes the subject-matter of the invention. This body is preferably, though not necessarily, made of sheet metal, and comprises fixed end walls 12 connected by side walls. The

side walls comprise upper sections 13 which are suitably fixed to the end walls and lower sections 14; hinged, as shown at 15, at their upper edges to the lower edges of the sections 13 and being capable of swinging outwardly, as will be clear by reference to Fig.

4;; The upper side wall sections 13 are suit'-' ably reinforced by angle bars 16,] and the end walls are also reinforced by similar angle bars 17. 1

Specification of Letters Patent.

Patented Jane 2?, 1916.

Serial No. 23,626.

The truck 10 includes a pair of longitudinal sills 18, and pivoted between their inner and outer edges to these sills, are downwardly swinging bottom sections 19 suitably reinforced by angle bars shown at 20. The hinges 21 for these bottom sections are located nearer the inner edges than the outer edges of said sections 19. Other upwardly movable bottom sections 22 are employed, which in effect constitute a partition longitudinally in the lower portion of the car. The lower edges of the sections 22 are hinged as illustrated at 23, to the inner edges of the downwardly movable sections 19,while their upper edges are hinged together as shown at 24:. The hinged pintle 25 of the upper hinges is in the form of a rod extending the length of the sections 22 and projecting beyond the same, the projecting ends being slidably mounted in vertical guide slots 26 formed in the end walls 12. As shown more particularly in Figs. 1 and 7 the slots 26 are covered by plates 27 mounted on and movable with the pintle 25, the plates operating between guides 28 secured to the outer faces of the end walls 1.2. Extending longitudinally through the lower central portion of the car between the upwardly movable bottom sections 22, is a rock shaft 29 journaled in the end walls and carrying on its projecting ends oppositely disposed crank arms 30. These crank arms are respectively connected by links 31 with the side wall sections 1 1. At one end of the car a hand lever 32 is fixed to the rock shaft 29, and its upper portion operates in the guideway formed by a guide bracket or strip 33 secured to said end wall. The mechanism is such that when the lever 32 is at one end of the guideway, as shown in Fig. 1, the side sections 1 1 will be in their closed position and the lever is locked in this position by a latch shown more particularly in Fig. 6. This latch comprises a spring member 34.- secured to the guide strip 33 and extending therethrough across the guideway in the path of the lever 32. A. bracket secured to the guide strip 33, has journaled thereon a cam 36 which operates behind the rounded offset end 37 of the latch This cam is provided with a suitable handle 38, and it will be evident that if the handle 38 is turned to the right,

the cam will operate to withdraw the latch 3% from behind the lever 32, so that the same may be operated. On the other hand, when said lever is swung to the position shown in Figs. 1 and 6, the latch will be forced outwardly and permit the free passage of said lever. The movement of the cam is limited by a pin 39 passing through a slot 40 formed in the cam.

-As shown more particularly in Figs. 8 and 4, the side walls when in their closed position, constitute supports for the downwardly movable sections 19 of the bottom walls, and for this purpose angle brackets or bars 41 are secured to the lower margins of the side wall sections 14, said brackets or bars having inturned flanges that engage beneath the outer margins of the bottom sections 19, when said sections are elevated and the side wall sections are in their closed positions.

The operation of the device, it is believed, will be apparent by reference to Fig. 3. When the bottom and side movable wall sections are closed, the body of the car constitutes an effective container, in which the material to be carried and dumped, will be held. When it is desired to dump the car,-

all that is necessary is to swing the lever 32 from the position shown in Fig. 1 to the left. This results in positively swinging the side sections 14 outwardly, and thereby the bottom sections 19 are released. When so released, the weight of the material upon the outer portions ofthe bottom sections 19 will overbalance the weight upon the inner portions and the resistance against the sections 22, and the bottom sections will swing downwardly to open position, while the sections 22 will be elevated and slightly spread apart. The result is that the load will be dislodged and will gravitate downwardly between the sections lt and 19, being thereby discharged from the car. As soon as the bottom is relieved of the weight of the load the combined weight of the sections 22 and the inner portions of the sections 19 will overbalance the outer portions of the sections 19 and the bottom will return to its normal or closed position. Therefore as soon as the lever 32 is swung back to the position shown in Fig. 1, the car is in closed position ready to receive another load.

In case the dumping operation is to be automatically performed, the lever 32 is supplantedby suitable mechanism, as for example, that shown in Figs. 8 and 9. A portion of one of the end walls of the car is illustrated at 12, and the rock shaft is designated 29 On the projecting end of this rock shaft is located a disk 32 notched, as illustrated at 33? to receive the tooth 34: of a locking lever 35. The said lever is pivoted at one end, as shown at 36, while its other end rests upon a vertical push rod 37 slidably mounted on the car and carrying at its lower end a roller 38. Arranged in the path of the roller 38 at the point where the car is to be dumped is a suitable trip block 39 It will be evident that with this construction, assuming the car loaded and locked in its closed position, as said car passes the trip block 39", the roller 38 will ride thereupon, thereby elevating the push rod 37 and the lever 35*. As soon as the tooth 3 1 is disen, gaged from the notch 33 and the rock shaft 29 is released, it will be evident therefore from what has gone before, that the various movable wall sections being thus released, the weight will automatically actuate the same and the load will be discharged, the parts automatically returning to their closed position after such discharge.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art, without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is r 1. In a dump car, opposite downwardly swinging bottom sections, central upstanding sections pivoted to the inner portions of the bottom sections and to each other,

said bottom sectionsbeing so pivoted that.

their outer sides willgravitate downwardly under a load and will be 'overbalanced when unloaded to permit their automatic return, opposite side walls capable of outward swinging movement independently of the bottom sections and having means for detachably engaging and holding the bottom sections against dumping when said side walls are closed, and means for locking the side walls in closed position.

2. In a dump car, opposite downwardly swinging bottom sections, central upstanding sections pivotedto the inner portions of the bottom sections and to each other, said bottom sections being so pivoted that their outer sides will gravitate downwardly under a load and will be overbalanced when unloaded to permit their automatic return, opposite side walls capable of outward swinging movement independently of the bottom sections and having means for detachably engaging and holding the bottom sections against dumping when said side walls are closed, and means mounted on the car and connected to both side walls for locking the side walls in closed position.

3. In a dump car, end walls, sidewalls comprising upper fixed sections connecting the end walls, and lower outwardly swinging sections hinged to the] fixed sections, means connected to the swinging sections for holding them in closedposition, and downwardly swinging bottom sections iia higher than the side sections, said end walls having vertical slots below their upper edges, guiding means for the central sections slidable in said slots, and devices carried by the guiding means and movable therewith for closing the slots.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

SYLVESTER I-I. HUNT. Witnesses J. A. SHEA, S. A. NAGEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.