US1072845A - Spar-cap. - Google Patents

Description

E. A. & J. F. GASKILL.

SPAR GAP. APPLICATION FILED JUNE 13, 1912.

Patented Sept. 9, 1913.

Z $4.0M 5% Y 7. R wwflfm m7 W 5 Z iillll llllh.

I WITNESS EDWIN A. GASKILL AND JOSEPH FRANKLIN GASKILL, OF LANEVILLE, WEST VIRGINIA,

SPAR-GAP.

Specification of Letters Patent.

PatentedSept.9,1913.

Original application filed. March 25, 1912, Serial No. 686,183. Divided and. this application filed June 13,

1912. Serial No. 703,596.

To all whom it may concern:

Be it known that we, EDWIN A. GAsKrLL and Josnrrr FRANKLIN GASKILL, citizens of the United States, residing at Laneville, in the county of Tucker and State of West Virginia, have jointlyinvented a certain new and useful Improved Spar-Cap, of which the following is a specification.

This invention relates to apparatus used in connection with the skidding of logs and has more particular relation to the provid ingof a novel spar cap for use in conjunc tion with a spar and spar base in the over head skidding of logs as set forth in our application for Letters Patent, Serial No. 686,183, of which this case is a division.

The principal object of the present invention is to provide a novel construction of spar cap for use'in conjunction with a spar and spar base, whereby simplicity, efliciency and cheapness in the overhead skidding of logs is efiected.

A further object of the present invention is to provide a spar cap of such construction that whenits complemental spar and spar base are in working position, the spar to gether with the spar cap, maybe readily moved around its own axis, to properly aline the sheaves carried by the spar cap, without interfering with the guy rods used in positioning the spar.

A further object of the present invention is to provide a spar cap equipped with a series of sheaves, the sheaves being so arranged that they are contained wholly within the spar supporting the cap.

Still further objects of the present invention relate to the providing ofgeneral details of construction and arrangement of parts.

\Vith these and other objectsin view, the invention consists of the improvements hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description, taken in connection with the accompanying drawing, forming part hereof and in which:

Figure 1, is a view in elevation of a tu bular. spar, equipped with a spar cap embodying the invention, Fig. 2, is a view in elevation of the spar cap detached from its complemental spar, Fig. 3, is a view in sec tion taken upon the line 33 of Fig. 2, Fig. 4C, is a view of the underside of the spar cap shown in the foregoing figures, Fig. 5, is a plan view of the guy ring shown in Fig. 1, and Fig. 6, is a plan view of the split ring shown in Fig.1. i The spar cap of the invention is particularly adapted for use in connection with the spar shown and described in our above mentioned application for Letters Patent, which spar is adapted for use in the overhead skidding of logs at the place where the trees are felled or cut down. Referring now more particularly to Fig. 1, such spar is designated 10, and is shown as being of tubular formation and of generally lattice-like or skeleton construction. As this. spar forms no partof the present invention, the same being claimed in our above mentioned application for Letters Patent, further description of this spar is unnecessary. This spar 10, is provided at its top with a spar cap 11, see Figs. 1, 2, 3, and 4. As clearly shown in said figures, the spar cap comprises a generally ring-like member 12, terminating at its top in an upwardly extending ringlike portion 13, having a closed top 14. The ring-like portion 13, is slightly smaller in diameter than is the ring-like portion 12. As clearly shown. in Fig. 3, the base of the part 12, is open. In practice and as shown in Fig. 1, the uprights of the spar 10, may be secured to the ring-like portion 12.

Arranged centrally of the ring 12, and extended thereacross and preferably formed integral therewith, are spaced plates 80, each plate having a horizontally extending foot 15. Each foot 15, is provided with a semi-circular face 16. In practice, these semi-circular faces 16, provide convenient parts to which the spar uprights may be bolted; J ournaled between the plates 30, are sheaves 17, 18, and 19. The sheave 17, is arranged in a plane below that of the sheaves 18, and 19. The sheaves 18, and 19, are arranged opposite to one another and are in the same plane. That portion of the ring 12, adjacent the sheaves 18, and 19, is cut-away as at 20, to permit of the passage therethrough of a main line cable (not shown in the drawings). Adapted to be fitted around the part 13, is a guy ring 21. This guy ring rests upon the ledge 22,

formed by the parts 12, and 13, and is retained in position by means of a split ring 23, bolted as at 24:, to the part 13, of the spar cap. Guy ropes 31, connect with the guy ring 21, see Fig. 1, and serve to properly position the spar 10. It will thus be apparent that the spar 10, and spar cap 11, are positively secured together and may be moved around their oWn axes without interfering with the guy ring and guy ropes Which latter parts are relatively fixed with respect to the spar and spar cap. be stated at this time that the sheaves 17, 18, and 19, in effect form part of the spar and are contained wholly within the same. Thus, the'shea'ves may be properly alined with desired objects readily and expeditiously and without interfering in any way with the guy ring or guy ropes. It may be stated also at, this time that the closed top 14, of the spar cap, serves to a degree to protect the sheaves from inclement Weather. The ring 12, has depending from its underside, cars 25, suspended from which are sections of chains, ropes or the like 26, see Fig; 1, rings 27, provided with eyes 28, being present between the sections of chains, ropes or the like 26.- In practice, it is sometimes convenient to use pulley bloc is in conjunction with the spar 10, and in this connection it may be remarked that ropes, chains or the like, may be passed through the rings 27, and around the spar 10, to which ropes, chains or the like, pulley blocks may be secured.

What we claim is:

1. A spar cap for tubular spars comprising a top plate provided with a depending centrally disposed forked portion and an upwardly extending guy ring receiving element, a guy ring and a sheave journaled within said depending forked portion said sheave being adapted to be contained wholly within the tubular spar.

2. A spar cap comprising an inverted generally dish-shaped plate, centrally disposed spaced plates depending from the first men tioned plate and a sheave journaled between said spaced plates.

3. v A spar cap comprising an inverted generally dish-shaped plate, centrally disposed spaced plates arranged in parallelism de pending from the first mentioned plate each of said spaced plates terminating in a hori- C opies of this patent may be obtained for five cents each, by addressing the fl omrnissioner of Patents,

It may zontally disposed foot portion and a sheave journalcd between said spaced plates.

4:. A spar cap comprising an inverted generally dishshaped plate provided with a guy ring receiving ledge, a guy ring, a split ring for retaining said guy ring in po-v sit-ion upon said ledge, centrally disposed spaced plates arranged in parallelism depending from the first mentioned plate each spaced plate terminating in a horizontally disposed foot portion having a curved outer face and a sheave journaled between said spaced plates.

5. A spar cap the top portion of which has depending therefrom a series of short chain sections, ropes or the like, ring-like mediums being present between adjacent sections of chains, ropes or the like.

6. A spar cap comprising a top plate, ears depending from said plate anda series of short chain sections, ropes or the like suspended from said ears, rings being pres ent between adjacent sections of chains, ropes or the like.

7. A spar cap comprising a top portion provided with depending spaced plates ar ranged in parallelism each plate terminating in a horizontally disposed foot whereof the spaced plates form a sheave receiving element and the feet form means for spar.

attachment. V

8. In combination a tubular spar,.a cap comprising an inverted generally dishshaped top piece provided interiorly with a depending forked sheave receiving element terminating in horizontally disposed feet said top piece being provided exteriorly with a guy ring receiving element, the skirt of'sa'id top piece and said feet forming means for spar attachment, mediums see curing said spar to said skirt and feet, a sheave j ournaled Within the forked element, a guy ring so mounted upon said guy ring receiving element that the spar is rotatably movable with respect thereto and a medium for retaining said guy ring in position.

In testimony whereof, we havezhereunto signed our names in the presence of two Witnesses.

EDWIN A. GASKILL. JOSEPH FRANKLIN l/Vitnesses, HANNAHY. GAsKILL,

J. Ross SNO DEN.

GASKILL.

Washington, D. G.

Images