US821089A

US821089A - Log-loader.

Info

Publication number: US821089A
Application number: US20687804A
Authority: US
Inventors: Oliver Cheverfield
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-05-07
Filing date: 1904-05-07
Publication date: 1906-05-22
Anticipated expiration: 1923-05-22

Description

No. 821,089. PATENTEDMAY 22,1906. 0. CHEVERPIELD. LOG ,LOADER.

APPLICATION FILED MAY 7, 1904.

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' No. 821,089. PATENTED MAY 22, 1906.

0. GHEVEBFIELD.

LOG LOADER.

APPLICATION FILED MAY 7, 1904.

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LOG-LOADER.

Specification of Letters Patent.

Patented May 22, 1906.

Application filed May '7 1904. Serial No. 206,878.

To all whom it may concern/.-

Be it known that I, OLIVER CHEVERFIELD,

a citizen of the United States, residing at Deer River, in the county of Itasca, in the State of Minnesota, have invented a new and useful Log-Loader, of which the following is a specification. This invention relates to devices for elevating and loading logs on cars or trucks; and the objects of the invention are to convey the logs to the car and to adjust the elevation of the conveyer to correspond with the height of the load upon which the logs are being placed, so that the logs will not be dropped from a distance upon the car or truck, thereby savmg C{year and tear on the rolling-stock of the roa The invention consists in the novel features of construction. and combination of parts hereinafter described, particularly pointed out in the claims, and shown in the accompanying drawings, inwhich- Figure 1 is a side elevation of the device. Fig. 2 is a plan view of the device. Fig. 3 is a detail View, partly in elevation and partly in section, of a shaft, clutch, and bevel-gears. Fig. 4 is a side elevation of a carrier and skid. Fig. 5 is an end view of the same, and Fig. 6 1s a section on the line 6 6 of Fig. 4.

In the drawings, A represents a foundationframe, preferably inclined, and on this frame is built a superstructure A. An open framework B is hinged at its rear end to the upper portion of the structure A, the forward portion of the frame B normally resting on the frame A, but adapted to be lifted vertically by means hereinafter pointed out. The front of the frame A and movable frame B terminates adjacent a track upon which travels the logging-car B. Sprocket-shafts are journaled at the forward end of the frame B and at the rear lower end of the superstructure A and carry sprocket-wheels C, over which run the conveyer-chains C, spiked in order to engage and hold the logs, which rest transversely upon the said chains and are carried over the frames to the car B.

The mechanism employed may be driven from any suitable source of power, but I have illustrated it as being driven by an engine. (Shown diagrammatically at C in Fig. 2.) A shaft 0 is journaled in the structure A, having a pulley C*, from which a drive-belt C extends to the drive-wheel of the engine C A gear-wheel C, arranged on the shaft C meshes with a gear-wheel C carried by a stub-shaft G which also carries a pulley from which runs the belt D. In the frame B are journaled two parallel shafts D and F, the shaft D having mounted loosely thereon a pulley D having a hub portion which on one side of the pulley D carries a bevel-gear D and on the opposite side carries a gearwheel D on the outer side of which is formed a concaved face adapted to be engaged by the convex face of the friction-clutch D, which is keyed to the shaft D and is slidable thereon. The shaft D also has rigidly secured thereon adjacent each end a bevel-gear E, and at one end the shaft D carries a ratchet E, engaged by a pawl E whereby reverse rotation of the shaft D is prevented. On the shaft F is slidably keyed a gear-wheel F, adapted to mesh with the gear-wheel D on the hub of the pulley D carried by the shaft D. At one end of the shaft F is arranged a brake-wheel carrying a brake-band F of the usual construction. Within the frame B the shaft F carries drums F upon which are adapted to be wound the cables G, which cables are secured to standards G, arranged at the forward end of the foundationframe A, the cables passing over a plurality of idle pulleys G Arranged adjacent the forward end of the frame B is a shaft H, on which are loosely arranged carriers 1-1. These carriers are longitudinally grooved, the shaft H passing transversely through each groove, and fixed on the shaft are pulleys H each pulley working in a groove of one of the carriers, the upper portion of the pulley projecting above the side walls of the carrier. At the ends of each carrier are arranged standards H which are bent inwardly and engage the flanges H of the skids H and the skids are longitudinally grooved on their under face, so that they fit down over the pulleys H upon which the skids travel. A grooved collar H, shifting the shaft longitudinally, throws the shaft H into and out of operation and also reverses direction of its rotation so that the skids will move forward and rearward, dependent upon the direction of rotation of the shaft H and the pulleys H An operators platform J is carried by one side of the frame B, so that it rises and falls with the said frame, thus enabling the operator to get a clear view of the work at all its sta es, and suitable connecting-rods J, J J an J lead from the various clutches and from the brake-band, so that the entire control of the machine is in the hands of one man, thus saving labor and insuring uniform regulation of the various parts.

The clutch mechanism carried by the shaft D is for starting and stopping the machine, the clutch mechanism carried by the shaft F raises and lowers the hinged frame B, and the clutch mechanism of the shaft H controls rotation and direction of rotation of the shaft and pulley H and consequent movement of the skids. Rotation of the shaft F will wind the cables G upon the drums, and thereby raise the forward end of the frame B.

The sprocket-wheels are driven by means ofithe shafts K, arranged longitudinally of the frame B and having bevel-gears K at each end, the rear gears meshing with the bevel-gears E of the shaft D and the forward gears meshing with gears L on the shaft L, which shaft carries the forward sprocketwheels C. The shaft H, which is slidable, carries two oppositely-beveled gear-wheels M M, and a shaft arranged on the longitudinal center of the frame B carries a bevel-gear N, which meshes with the bevel-gear D of the shaft D, and at the opposite end a bevelgear N, which is adapted to mesh with either of the gears M M according to the position of the shaft H, the clutch H sliding the shaft so that neither or either of the gears M M are in engagement with the gear N.

The logs are delivered to the skids, the position of which is readily adjusted, and as the pile of logs on the car is increased in height the front of the frame B is raised, and the logs are thus always delivered to the car on a gentle incline, avoiding damage to the rolling-stock of the road if the logs were dropped from a fixed height, which at first would be some distance from the top of the load.

It is thought that from this description and the drawings the advantages of my construction will be obvious.

Having thusfully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A device of the kind described comprising a stationary frame, a movable frame hinged thereto, an endless conveyer adapted to travel over the frames, the conveyer passing downward over the front end of the hinged frame, a shaft carried adjacent the front end of the hin ed frame, pulleys on the shaft, skids adapte to travel on the pulleys and to receive logs from the conveyer, and means for rotating the shaft and pulley in either direction.

2. A device of the kind described comprising a stationary and a hinged frame, parallel shafts carried by the hinged frame, a pulley loosely mounted on one of the said shafts, said pulley having an elongated hub portion, a bevel-gear on the said hub portion and a gear-wheel on the hub portion on the opposite side of the pulley, a slidable clutch on the said shaft adapted to engage the pulley-hub, said clutch being keyed to the shaft, means for driving said pulley, a ratchet-wheel on the said shaft, a pawl adapted to engage the said ratchet-wheel, an endless conveyer, sprocketwheels adapted to be engaged by the con-1 veyer, means connecting the said shaft with the sprocket-wheels, a gear-wheel on the second shaft, means for locking said wheel to said shaft, drums on thesaid shaft, cables adapted to Wind on the said drums, and means for driving the first-mentioned shaft.

3. A device of the kind described comprising a stationary frame, a hinged frame adapted to be moved vertically, an endless conveyer adapted to travel over the frames,

skids carried by the hinged frame and adapted to be projected in advance of same and receive logs from the conveyer, means for driving the conveyer, means for raising and lowering the hinged frame, and a platform carried by one side of the hinged frame, as and for the purpose set forth.

4. A device of the kind described comprising a stationary frame, a movable frame hinged thereto carrying a shaft, carriers arranged on said shaft, skids arranged in the carriers and means for driving the shaft for the purpose described.

, 5. A device of the kind described comprising a stationary frame, a movable frame hinged thereto, a shaft mounted in said frame, pulleys mounted on said shaft, carriers arranged on said shaft skids working through said carriers, and means for driving the shaft for the purpose described.

6. A device of the kind described, comprising a frame a shaft mounted in said frame, carriers arran ed on the frame provided with grooves, gui e-arms, extending u wardly from said carriers, pulleys mounte loosely on said shaft, working in the grooves of the carriers, said skids working on the pulley and through the guide-arms, for the purpose described.

OLIVER CHEVERFIELD. Witnesses:

LUCIUS OGAN, SIMON D. PATRICK.