US1071983A - Loading-hook. - Google Patents

Description

M. T. BYRN.

LOADING HOOK.

APPLICATION FILED SEPT. 28, 1912.

1,071,983, Patented Sept. 2, 1913.

MONTGOMERY T. BYRN, 0F TRUMANN, ARKANSAS.

LOADING-HOOK.

Specification of Letters Patent.

Application filed September 28, 1912.

Patented Sept. 2, 1913.

Serial No. 722,934.

To all whom it may concern:

Be it known that I, MONTGOMERY T. Bran, a citizen of the United States, residing at Trumann, in the county of Poinsett and State of Arkansas, have invented certain new and useful Improvements in Loading-Hooks, of which the following is a specification.

My invention relates particularly to the kind of devices or hooks used for handling logs and large timbers in connection with crotched chains or ropes to which the hooks are applied, whereby the logs can be raised and lowered by the hooks engaging their ends.

The essential object of the improvements hereinafter set forth in detail is to provide a log loading hook which will positively and effectively engage the ends of a log with which it is brought in contact.

A further object of my improvements is to provide a hook in which the engaging spur or stud may be quickly and easily removed when it becomes too dull to be effective, and a new stud inserted in its place.

A further object of my invention is to augment the action of the stud or spur and protect it, by a bit which surrounds the spur and is provided with an engaging edge adapted to enter the portion of the end of the log adjacent the stud.

A still further object of my invention is to provide means whereby the stud and bit will be quickly and easily disengaged from the log to which they have been applied.

The hook hereinafter described is simple and strong in construction, and due to its design is easily handled and will retain its durability.

In the drawings forming a part of this application: Figure 1 is a side view partially in section, showing the various parts of my loading hook in assembled relation; Fig. 2 is a fragmental plan view looking into the spur and bit portions of the hook shown in Fig. 1; Fig. 3 is a side view of the lower portion of the hook showing a modified feature in dotted lines; Fig. 4 is a central section of one form of bit used, and Fig. 5 is a central section of a modified form of bit.

Similar reference characters refer to simi lar parts throughout the several views.

The reference character 6 designates the arm portion of the hook which is L shaped in general form and has a line receiving opening 6 in its upper end, while the lower arm of the hook is provided with a handhold opening 6* which also answers as a convenient fastening for the hand line or chain 7.

(5 forms the body part of the hook. A transverse opening (3 in the lower part of the body of the hook is surrounded by a concave depression (3, in which is seated a cup-shaped bit 8, its concave back conforming to the curve of said depression. The bit 8 has a radial opening 8, which registers with a drilled hole 6 opening into the depression 6, through which opening and into which drilled hole, a stud 9 extends, thus preventing the bit from turning on the spur 10 and at the same time holding it more socurely in position against forward or lateral movement. Bit 8 also has a beveled central opening 8, correspomling to the opening 6 of the arm 6, through which passes the spur 10 which has a Shoulder 10, seated in the beveled opening 8" of the bit 8, and which assists in the holding of said bit in its seat, and also prevents the spur receding into and becoming wedged in the opening 6 when subjected to excessive thrusts or strains.

The spur 10 is held in place by a stud 11 extending through a slot 10" provided in the shank of said spur, which will allow of some longitudinal play, when by constant wear the shoulder 10 is forced backward, thus preventing breaking or shearing strain on said stud 11.

Directly below the bit 8, is a recess 6 which contains the plunger 12. Said plunger is held in position by a stud 13 extending through the walls of the recess 6 into a slot 12 provided in said plunger. The plunger 12 is held in working position and under tension by an expansion coil spring 14 located behind it in the recess 6 In Fig. 3 I have shown a modified form of hook in which the plunger 12 and easing 6 is in a separate piece from the base 6 and may be bolted thereto by the bolt 15, a suitable recess being providcd therefor.

Fig. 5 shows a modification of the shape of the bit, having angular engaging surfaces in place of the curved surfaces of the bit shown in Fig. 4:. The modified form shown in Fig. 5 has been designated by the characters 8, 8 and 8".

In operating, two hooks are fastened to crotch lines 16, and these to a draft line (not shown) a hook is then placed at each end of the log and when strain is exerted on the draft and crotch lines in lifting the log, it draws the spur 10 of each hook into said log. If it be a very heavy log the bit 8 will also bite into the log and prevent the spurs from tearing loose. Frequently it is very hard to disengage the hooks, and therefore I have devised the spring pressed plunger to assist in this operation. When the bit 8 is c rawn into the log the plunger 12 is compressed against the spring 14L so that when the draft line is released the expansion of the spring tends to force the hook away from the log. When the hooks are removed from the log they naturally swing downward with the lower rims of the bits striking together, which dulls the edges. This is avoided by placing the spring compressed plungers so that their ends will project beyond the edges of the bits causing the plungers to strike together, thus protecting the engaging edges of the bits and prolonging their efliciency.

I have described the principal operation of my invention, together with the apparatus which I now consider toybe the best embodiment thereof; but I desire to have it understood that various changes may be made as to the means of fastening the spur, plunger, and bit, all within the scope of my invention.

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

l. A loading hook comprising an angular body portion having in one leg inwardly Gppies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 7

opening sockets, a bit arranged in one of said sockets, a spur extending through said bit and into said socket and removably secured therein, a spring-pressed plunger working in the other socket, and means for operating said hook.

2. A loading hook comprising a body portion having a hand-hole, a crotch-line hook and a draft line hole therein, and inwardly disposed sockets, a cup-shaped bit applied to one of said sockets, a spur extending through said bit and into said socket and secured therein, a yielding plunger slidably engaged in the other socket, and means connected with said body portion for operating same.

' 3. A loading hook comprising an L shaped body portion, having upon one leg inwardly disposed sockets, a cup shaped bit removably seated in one of said sockets, a

spur with beveled shoulder registering with i an opening in said bit, the shank of said spur extending through said bit and into said socket, a stud passing through said guideway and shank of said spur, a plunger slidably engaged in the other socket and having tensioning means therein, a handhole, said body having a hand line hole, and a draft line hold therein. I

In testimony whereof I afiix my signature 1,

Rosa. H. TAYLOR, E. P. MU'roI-I.

Washington, D. C.

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