US901304A - Log-grab. - Google Patents

Description

I). W. MURPHY.

GRAB. armour LED JUL! 11, um.

901,304, Patented 0ct.13,1908.

v animus-sum 1. I

UNITED STATES PATENT OFFICE.

n DENNIS W. MURPHY, OF WARREN, PENNSYLVANIA, ASSIGN OR OOMPAN Y, OF WARREN, PENNSYLVANIA,

TO WARREN AXE AND TOOL A CORPORATION OF PENNSYLVANIA.

LOG-GRAB.

Specification of Letters Patent. Patented Oct. 13, 1908.

' Application filed July 11, 1908. Serial No. 443,041.

To all whom it may concern:

Be it known that I, DENNIs W. MURPHY, a citizen of the United States, residing at Warren, in the of the log-grab which lies outside of the log, when the driving tooth is fully driven in position. The lower face of the body-portion c of the shank in this case lies practically against the outside of the log, the line of which may be indicated then by the line of dashes a;x in Fig. 1. It will e seen that the lower face of the body-portion c is substantially fiat and will come into close contact with the log, when the tooth is fully ence being had to the accompanying drawmgs.

My invention relates to improvements in log-grabs, sometimes called grab-hooks; and an object of my invention is to provide a loggrab which will be simple in construction, comparatively cheap in manufacture and most efficient in use.

other object of my invention is to provide a log-grab having an eye in its rear or driving-tooth end and which shall be free from the objections heretofore urged against such an eye, which obstated in substance as folif the eye be formed of a The driving too in its uoper portion near the unction of the driving tooth b and the eye (1 lies just within of the driving tooth. By thus locating the eye (2 two advantages are obtained namely, the eye (Z will lie below the surface rc-=r of the 0g, when the driving tooth is fully driven; and the latter will have abundant strength near its junction with the shank. By placing the eye in the driving tooth so that it will be sunk below the surface of the 0g, when the driving tooth is erage is ob (commonly the spike end of a peavey 01' like device). The eye being below the surface of the log, the Woodsman with a short, q stab of the peavey forces the spike end of the latter into the eye d be seen that the log furnishes a most efficient ectlons may be lows: First, that tool to bind in the eye and thereby prevent the use of the log as a fulcrum in effecting theextraction of the driving tooth of the log grab.

further object of my invention is to provide a log-grab, the rear end of the shank of which shall be free from projections such as an ear and which will, therefore, travel freely over rough ground without becoming entangled with roots and the like.

he drawings illustrating the principle of my invention and the best mod known to me of applying that .when the eye is located in the rear end of the when the driving tooth is fully driven. us is overcome one of the objections urged to the employment of an eye in the rear end of a log-grab as set forth in the l patent above referred to.

To give strength rear edge portion 6, brace and meets the rear endf of the shank a. This rear end f lies below the plane of the back of the body-portion c of the shank a and inclines downwardly and rearwardly meet the rear edge portion e, without forming any projecting ear. he rear endf is thus depressed below the plane of the back of the body-portion c of the shank, it is shielded from the blows of the sledge or maul,

which fall upon shank. Hence, the wall of the eye d is shielded from being broken by the heavy blows of the sledge which would otherwise fall upon the shank above the eye Fig. 3 is a section Fig. 1; Fig. 4 is a plan; double-trailer b," and Fig. 6 shows a coupler fitted With my new log-grab.

My new log-grab consists essentially of two main parts,-the shank a and the driving tooth 12 formed integral with the rear portion thereof. To define what is meant by the shank, it may be said to be that portion 1 fulcrum for the peavey which is not the case particularly much more smoothly than a log-- (1, during the driving of the log-grab. Again, j tion to form a most efficient fulcrum for the by making the rear portionf of he shank a peavey. Again, by depressing the rear end free from any ear or projection in rear, the of the shank below the general level of the log-grab does not become entangled with back of'the body portion, the logra-b is en- 5 stones, roots and the like projecting from abled to travel much more smoothly and the rough ground. For this reason, my new rear wall of the eye d is thrown into a posilog-grab will travel much more smoothly tion where it is sheltered from the blows of over rough ground than will a log-grab havthe maul during the driving of the tooth 1).

ing a projecting ear in rear of the shank and Again, where the shank is reduced and extended in rear of the driving tooth to form an g-riab having a projecting perforated ear in ear and the latter is then perforated, the ear rear of the shank, the perforation or eye in is not only in abad positionto afford leversuch an ear tending to engage projecting age for the extracting tool but its construcroots and like found in rough wooded countion is essentially weak. These defects are 15 tries. overcome by the construction hereinbefore My new log-grab isparticularly adapted described and shown 1n the accompanying for use with four-p aws and. trailers. In Fig. drawings.

5 a four-paw or double trailer is shown-fitted I claim:

with my new log-grab, the free end of each A log grab consisting of a shank and a 20 of the chains h, being linked to one of the driving tooth integral therewith; said tooth log-grabs through the eye i, and the other being formed with an eye which lies below end of each of the chains being connected. to the rear end of said shank and within the the swivelv members 1', 7c, as shown. In Fig. rear edge portion of said tooth; said rear 6 a single trailer or coupler is shown, the edge portion joining the rear end of said 25 chains h being connected each to one of the shank without the formation of an ear at the swivel members m, a, and themselves conpoint of junction and serving as a brace; the necting the two log-grabs; In Fig. 5 the-lo i back of said rear end above said tooth lying grabs are driven in the sides of the log, whi 'e below the plane of the back of the body porin Fig. 6 thelog-grabs are driven in the top tion of said shank and inclining downwardly 30 of the log. The front or draft end of the and rearwardly towards said tooth to shield shank ais provided with the usual spur 0. the wall of said eye from the blows of the It will be observed from the foregoing that maul; and the rear end of said shank being 7 5 by locating the eye din the driving tooth and free from an ear extending in rear of the rear thereby insuring that it will be forced into edge portion of said tooth.

35 the log when thcdriving tooth is fully driven, In witness whereof I have hereunto set my the eye iskept out of engagement with roots, hand at said Warren in the presence of the rou h stones and the like which by their en- 0 two undersigned witnesses this sixth day of gagement with the eye would tend to loosen July, 1908. the log-grab, and to stop the trail of logs in. 40 their movement over the surface of the ground. Again, another advantage of this location is that a most excellent leverage for; the peavey is obtained, thelog being in posi- DENNIS W. MURPHY.

Witnesses:

HERMAN J. TEMPLETON, W. A. KINNEAR.

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