US643788A - Lumber-loader. - Google Patents

Description

N0. 643,788. Patented Feb. 20, I900.

L. J. cooy. LUMBER LUADER.

(Application filed Oct. 24, 1899.)

(No Model.)

THE Noams Pnzas cu. Pnoruu'rnu, WASHINGTON, n. c.

V UNITED STATES PATENT OFFICE.

LORENZO JOSEPH CODY, OF DULUTH, MINNESOTA.

LUMBER-LOADER.

SPECIFICATION forming part of Letters Patent No. 643,788, dated February 20, 1900.

Apnlieation filed ctober 24, 1899. Serial No. 734,669. (No model.)

To all whom it may concern:

Beit known that I, LORENZO JOSEPH CODY, a citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Lumber-Loaders; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in log-loaders, and particularly to that class of devices which are adapted to be mounted upon sleds or runners and to carry a hoistingengine for raising and lowering the logs to be loaded.

It consists in a log-roller comprising a platform, a derrick formed of V-shaped beams secured together at their upper ends and spread apart at their lower ends, the said derrick being hinged at its lower end to the platform, a block or pulley supported at the apex of the said derrick, and means for attaching a cable passing through the said block to the poles to be lifted, the construction being such that poles may be readily attached to the cable and raised for placing them upon a sled, wagon, car, or other device for transporting them.

It also consists of certainother novel combinations, constructions, and arrangements of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 represents a perspective view of a log-loader constructed in accordance with my invention, and Fig. 2 represents a detail side elevation of means for clamping the derrick ropes or cables to the supporting-platform.

1 in the drawings represents a platform mounted upon a bob-sleigh,as 2 2. Ahoisting-engine 3 and a derrick 4 are mounted upon the said platform.

My improved log-loader is so arranged that e the weight of the articles lifted is transferred squarely to the platform supporting the apparatus and in such a manner that the said platform is not likely to be tipped by heavy weights, as is the case when a pivoted arm or beam is employed.

In carrying out the features of my invention I preferably mount the platform 1 upon a bob-sled having runners which are turned up at each end, as illustrated in the drawings, so that the sled may be moved in either direction, if found desirable. The derrickplatform 1 is pivoted to the rear bunk 16 of the sled about centrally transversely of its length by a pivot 17, which extends vertically through the platform into the said rear bunk. The frontbunk is divided transversely and horizontally, so that a space is secured through which the forward end of the derrickplatform 1 extends and is held in an adjusted position therein by means of pins 18, which pass vertically through apertures 19, provided in the double portions of said front bunk. The object of this construction is to permit the front end of the derrick-platform to be slid transversely on the front bunk to the side opposite to the skidway, so that the greater portion of the weight of the derrick will be thrown on the side of the sled farthest from the log beinglifted, so as to balance the sled and prevent the same from toppling over or leaning to one side. By use of the pins the front end of the derrick can be held against transverse or lateral movement after it has been adjusted to the desired position, the pins being capable of ready removal and insertion in any one of the adjusting-holes 19, as shown.

Upon the platform 1 is mounted a derrick 4, which is hinged thereto at its lower end. by means of suitable hinges, as 5 5. The derrick 4 consists, preferably, of two beams securely fastened together at their top, forming an apex, and spread apart at their lower ends, where they are secured to the platform by the hinges 5 5. The hinged connection between the derrick and the platform permits the derrick to be raised and lowered in the longitudinal plane of the sled and prevents strains being applied to the platform in a lateral direction. The derrick also having its legs spread apart is adapted to accommodate the ends of logs or other similar articles which are being lifted when it is desired to load the logs in close proximity to the end of the platform 1. The derrick 4 is adj ustably secured in an inclined position by means of cables, as 6 6,

which extend rearwardly to suitable points upon the platform 1, where they are passed through eyebolts, as 'Z, and beneath clamps, as 8. These clamps may be of any suitable construction, and when it is desired to raise or lower the derrick the clamps are released and the cables paid out or drawn in and the clamps brought into engagement with the said cables again. A block or pulley, as S, is secured to the apex of the derrick 4, and a hoisting-cable, as 9, is passed through the said block and extends rearwardly to the drum 10 of a hoisting-engine 3. The hoisting-engine is preferably located near the rear end of the platform 1 and may be provided with the usual hoisting-drums and a windingspool, as 11. By passing a cable about the winding-spool 11 and securing it to a tree or other fixture in front of or to the rear of the sled the engine may be used to move the said sled from one position to another, according as may be needed to handle the logsin acertain vicinity. The cable 9 is provided at its lower free end with a divided rope or cable, as 12, which maybe secured to the said cable 9 in any desired manner--for instance, by means of a ring, as 13. The branch cable 12 carries at its end log-engaging hooks, as 14 14, and guy-poles 15 15, which are pivoted to a perforation formed in each of the pole-hooks.

When it is desired to raise a log, the operators may take the guy-poles 15 in their hands and adjust the hooks 14 in the ends of the log. The hoisting-engine will then be set in motion and the log raised, the men guiding the log in its movement by means of the guypoles 15 15. In this manner it can be readily placed upon a load fortransportation. When the log has been deposited upon the load, the hooks 14 can be readily and quickly detached from the ends of the log by means of the guypoles 15 15.

From the above description it will be seen that I have produced a machine which may lift articles for loading and unloading in a plane practically passing through the center of the said platform and that because of the pivoted manner in which the derrick is mounted to the platform the weight is transferred squarely upon the same. For ordinary use the derrick will be preferably held at an angle of about forty-five degrees, but may be quickly changed to suit the work being accomplished.

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

1. A log-loader comprising a platform, a derrick mounted thereon, formed of suitablyconnected beams, with their lower ends connected to said platform, at its forward end, means for supporting said platform, comprising a sled, with its bunks, said platform being pivotally connected about centrally ofits width on the rear one of said bunks, and adjustably connected to the forward one of said bunks, substantially as set forth.

2. A log-loader comprising a platform, a derrick mounted thereon, formed ofsuitablyconnected beams, with their lower ends connected to said platform, at its forward end, a sled having front and rear runners, said platform being pivoted about centrally of its width on a bunk of the rear runners, and extended through the hunk of the front runners, said latter bunk being provided with adjusting-holes and pins passed through said holes for holding the platform in an adjusted position, substantially as specified.

3. A log-loader, comprising a platform, a derrick mounted thereon, and a sled having front and rear runners, the said platform being pivoted about centrally of its width on the bunk of the rear runners and beingcapable of having a transverse movement on the bunk of the front runners, and means for holding the platform in the desired adjusted position, substantially as described.

4. A log-loader, comprising a platform, a derrick mounted thereon, and a sled having front and rear runners, said platform being pivoted about centrally of its Width on a hunk of the rear runners and extended through the hunk of the front runners, said bunk being provided with adjusting-holes and pins passed through said holes for bolding the platform in an adjusted position, substantial] y as described.

In testimony whereof I hereunto afiix my signature in presence of two Witnesses.

LORENZO JOSEPH CODY.

\Vitnesses:

JAMES T. WATsoN, D. D. MoINNIs.

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