US889603A - Dump-wagon. - Google Patents

Description

PATENTED JUNE 2, 1908 J. W. HAYWOOD. DUMP WAGON.

APPLICATION FILED SEPT. 24, 1907.

w. M W TM 1. MW am 'tion of the doors.

JOHN w. n YWooD, 0F BALDWINSYILLE, NEW YORK.

DUMP-WAGON.

No. ssacoe.

Specification of Letters Patent.

Patented June 2, 1908.

Application filed September 24, 1907. Serial to. 394,336.

To all whom it may concern:

Be itknown that 1, JOHN W. HAYWOOD, of Baldwinsville, in the countyof Onondaga, in theState of New York, have invented-new and-useful Improvements in Dump-Wagons, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improve- .ments in dump wagons having laterally swinging bottom doors hinged to the sides and meeting at substantially the longitudinal center of th'e box and refers more particularly to the means for controlling the o era- In most of the ump wagons of this class now in common use, the o erationof the doors is controlled by a suitable chain or chains connected to one or both ends of the doors and adapted to be wound upon a drum which in turn is usually rotated by? means of a ratchet Wheel and awl through the medium of the lever upon x ich the pawl is mounted. This drum is necessarily comparatively small in diameter and requires a number of turns and usually a greater number of o erations of the handle "to bring the doors rom their extreme open position to their extreme closed position and the work of closing the doors is, therefore; not only laborious but requires considerable time and attention from the driver when in many instances, particularly in irregularexcava tions and fills the handling of the team requires his full attention and both hands.

The main object, therefore, of my present invention is to provide means whereby the driver or operator may close the doors with a single con'iparatively short stroke of 'a suitable lever and whereby the movement of the lever through an arc of given length will take up a length of chain substantiallyfequal to ,twice the length of the arc of movement of the lever.

Another .bbjeot is to free the lever from connectionwith other parts of the door closing mechanism after said doors are closed and during the operation of opening the same.

stantially half of the load to bedum ed in one place and the other half in anot er place or the whole load may be dumped at once.

Other more specific objects and uses will be brought out in the following description.

In the drawings Figure 1 is a longitudinal sectional view of a dump wagon showing the door controlling mechanism in elevation and unlocked with the doors open. Fig. 2 is an enlarged longitudinal sectional view of a portion of-the dump Wagon showing. the door controlling mechanism as locked and the doors closed. Fig. 3 is a top plan of the door controlling mechanism seen in Fig. 1 and adjacent portions of thebox or frame' 'upon whichsaid mechanism is mounted. Fig.4 is a similar top plan of a modified form of door controlling mechamsm m which a single lever instead of two levers isemployed to throw the separate door operating mechanisms into position to'close the door. Fig. 5 1s a sec tional view taken on line 55, Fi 3. Fig.

6 is a horizontal sectional View oi: the front" gitudinal center of the box, the bottom doors 1 being co-exten's'ive with the distance'between the lower edges of the ends 3- and 4- and in this instance are made of sheet steel having lengthwise rein.- forcing ribs -5'- running lengthwise thereof in proximity to their meeting edges. The exact form, size and construction of the box is, however, immaterial except that the door closing device is particularly applicable for laterally swingin bottom doors and may be.

useful in control ing the operation of other than laterally swinging bottom doors and I do not, therefore, limit my.prese'nt invention to the form of dump wagon herein shown and described.

In order to demonstrate thepracticabiiity of my im roved door controlling mechanism Ihave s own a'pair of chains 6 each extending under the meeting edge of one of being passed around additi nal sheaves which are mounted upon swinging levers -1lthe front extremities of the chains bein then secured to suitable anchors 12 on t 1e front end of the box as clearly shown in Figs. 1 and 2. The essential feature of my invention, however, consists in passing the intermediate portion of a chain as'6 around-a sheave as 10- on a swinging leveras 11' and connecting one end of the chain to afiked anchorage on the box while' the other, end is connected to one of the 'doors in combination with a hand lever 13 for rocking the lever'11 in one direction and a detent as 15 for holding the lever 11. in its adjusted position. It, therefore, appears that each door and its chain 6- is provided with a separate operating lever --11- having a sheave or idler around which the chain is adapted to render and owing to the fact that one end of each chain is fastened to a fixed anchor and its other end is connected to the door it is evident that by rocking the lever --11 backward and forward, a considerably greater length of the chain which is attached to the door is let out and taken u than the length of the are through which tii and, in this instance, eachlevcr is adapted to move independently of the other and to be held by a separate detent as l5-.

' Each lever is fulcrumed at 17 to a suitable bracket '18- on the front of the box frame or platform -19 usually in front of the seat, not shown, and its upper -end is adapted to swing forwardly and rearwardly into and out of engagement with its holding pawl or detent 15,, the sheave or idler 10 and connection of the chain -'G- With the anchorage 12 being adjusted so that a predetermined movement of the lever --].1 from its rearvard position to its extreme forward posit-ion will carry the door from its extreme open position to its extreme closed position. In this particular instance, the lever -l1 swings through an arcjof substantially 90 and the sheave 10-- moves through an arc substantially equal to half the are through which the meeting ends of the door swin s, so that when the lever -11- is thrown to its extreme rearward position the correspending door is full open, each of said levers ----1l-- being provided with a stop shoulder --20 adapted to engage and to be engaged by the lever -13.

it will be seen upon reference to Fig.

e sheave of the lever 11 swings ceases that the lever -llswin s forwardly e nearly to a horizontal position in closing the door and, therefore, the lower side of the chain -6 upon which the greatest strain is exfulcriun 17 and relieves in a measure the strain upon the detent 15 thereby permitting the latterto be easil thrown out of holding engagement therewit 1. The detents --15- are preferably hinged at their lower ends at 17 to the front of the platform 19 as best seen in Fig. 2 and are provided with one or more engaging teeth to compensate for slight lengthening of the chain altho'ughthe chains are detachably enga ed with a grab hook 22 of the anc or 12 which permits said chain to be roperly adjusted to cause the doors to be c osed when the lever -1l is swung into holding engagement with one or the other of the 35 teeth of the detent 15. The lower ends of the (lo-tents -l5 are beveled at 23 to hold them against undue forward movement and still permit them to fall by gravity into position to be engaged by the free end of the levers -11. The detents -15. are provided with laterally rejecting foot pieces -25- and --26' ying normally one above the other and within reaching dis erted when the box is loaded draws close to the 7 0 tance of the seat, not shown, that the driver or operator may readily push either or both of the detents out of holdinge'nga ement with their respective levers -11- t iereby permitting one or both doors to drop or swing downwardly and laterally to discharge 1/- ing lever -30- playing between. the .evers 1a.;

11 and provided with opposite shoulders -31- for engaging and rocking the levers -1 1- forwardly until the latter are brought into holding engagement with their detellts -15, whereupon the lever 3-O- or the levers -13 as thecase may be return to their normal position against a suitable rest -32- where they are in position to be reengaged by the lever -11 when the load is discharged.

What I claim is: 1. A door operating mechanism for dump wagons comprising a chain having one on connected to the door and its other end con nected to a fixed anchorage on the wagon, 1:12.

and a lever provided with a bearing engag ing theintermediate portion of the chain. 1

W2. A door operating mechanism for dump wagons comprising a chain having oneendconnected to the door and its other and con i v nected to a can anchorage on the wagon, a; movable sheave or idler engaging the inter,- ll'l diliilh portion of the chain, and means for moving said idler in one direction.

3. In a dump wagon, a dump coir its laterally swinging bottom doors, separate 1 the doors, and se arate detents for holding chains, each having one end connected to a said elements in t ieir operative position. l 10 fixed anchorage on the-Wagon-end its other In witness whereofI have hereunto set my end connected toone of the doors for controls hand this 19th da of Se tember 1907.

v 5 ling the action of the latter, separate movable OHN HAYWOOD.

elements, each engaging the intermediate Witnesses:

portion of one of the chains, means for forc- CHASE,

ing said elements in one direction to close- MILDRED M. NOTT.

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