US1087063A - Aerial cableway. - Google Patents

Description

W. P. IZBTT.

AERIAL GABLBWAY.

APPLICATION FILED APB. 2 1-, 1913.

1,087,063. Patented Feb. 10, i914.

/vi hwma TN ,l Y I COLUMBIA PLANDGRAPN co., WASHINGTON, D.c.

WILLIAM F. IZETT, 01? OAK HARBOR, WASHINGTON.

AERIAL OABLEWAY.

Specification of Letters Patent.

Patented Feb. 10, 1914..

Application filed April 21, 1913. Serial No. 762,667.

To all whom it may concern Be it known that. I, IVILLIAM F. IZET'r, a citizen of the United States of America, and a resident of the city of Oak Harbor, in the county of Island and State of IVashington,

have invented certain new and useful Improvements in Aerial Cableways, of which the following is a specification.

My invention relates to aerial cableways and primarily to a simple and eiiicient means for supporting a cable track used in the conveyance of logs.

The invention is primarily designed to reduce the sagging of the cable track, under the weight of the supported load, to a minimum.

Other objects will be set forth as my description progresses, and those features of construction, arrangements and combinations of parts on which I desire protection, succinctly defined in my annexed claims.

In the drawings in which like numerals of reference designate like parts throughout: Figure 1 is an end elevation of my invention applied to a cable. Fig. 2 is a front elevation thereof, a portion being broken away. Fig. 3 is an end elevation of a slightly modified construction adapted for use where the embodiment disclosed in Fig. 1 is found objectionable. Fig. 1 is a front elevation of the modified form, and Fig. 5 is a perspective of a cable track illustrating my invention in use.

Referring more particularly to the drawings, 1 indicates a cable track suspended from suitable supports 2 by the track hangers 3 and cable 4. A hanger 5, suspended from a support by the cable 6, is employed to support the curved portions of the track.

In aerial cableways, the track, which is supported by flexibly suspended hangers, is caused to sag between the hangers by the weight of the carrier and its suspended load and as the carrier approaches the next hanger the angle of elevation thereto of the cable is greatly increased while the angle of elevation of the cable to the last hanger passed is correspondingly decreased owing to the shifting of the sag under the weight of carrier and its load. In moving up this sudden rise in the track much inconvenience in the travel of the carrier is encountered, for obvious reasons. The present invention comprises a simple contrivance disposed between the hangers for tightening. the track to thereby reduce the sagging of the cable and also distribute the tension equally between the'hangers throughout. the length.

My lmproved stay, to be placed at intervals along thetrack for holding the latter taut, comprises a body portion 7 having the lower terminal apertured, as at 8, whereby a stay cable 9 may be attached for the purpose of anchorage. This lower end portion is offset from the perpendicular, as at 7, to clear the carrier and its suspended load. Secured to the upper end portion of bodv 7 IS a .U-shaped resilient track clamping member 11, the arms of which are bowed iiiwardly, as at 12, to grip the track. The free edge portions of the track engaging clamp 11 receive the upper end portion of the body 7 therebetween and are fastened thereto by bolts 10 whereby the body 7 is spaced from the track.

In the modified form, which is especially adapted 'for use where the construction dis closed in Fig. 1 is objectionable, as when rounding curves or when the anchorage is on the opposite side of the track, the apertured end portion takes a spiral path, extending downwardly from the track, then outwardly and upwardly over the track to a polnt on the opposite side thereof and substantially in the horizontal plane therewith. To this terminal 7 which is apertured, the stay cable 9 is secured.

The approaching edges 11 of the clamp are beveled or inclined to facilitate the passage of the carrier thereover.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States of Amer- 1ca, 1s

1. In apparatus of the character described, a track stay comprising a body portion havmg one end portion offset from the perpendicular, the oifset end portion being provided with means adapted for engagement with an anchor, and means for securing the track to the opposite terminal of the body.

2. In apparatus of the character described, a track stay comprising a body portion having one terminal offset from the vertical plane, the ofiset terminal being provided with means adapted for engagement with an anchor, and clamping means adapted to embrace the track and engage the opposite terminal of the body.

3. In apparatus of the character described, a track stay comprising a body portion provided with means adapted for engagement with an anchor, and a substantially U- shaped clamping member embracing the track and having one of its arms secured to the body.

4. In apparatus of the character described, a track stay comprising a body portion, and means for fastening a track to one terminal thereof, said body extending downwardly, then outwardly and upwardly from said 10 means in a spiral path and terminating on the opposite side of the track, the last men tioned terminal being adapted to be anchored.

Signed at Seattle, Washington this 10th day of April 1913.

WILLIAM F. IZETT.

Witnesses:

E. ARLITA ADAMS, JAMES E. SPnoLL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatento, Washington, D. G.

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