US392873A

US392873A - Alexandes lefobestiee

Info

Publication number: US392873A
Authority: US
Publication date: 1888-11-13
Anticipated expiration: 1905-11-13

Description

(N0 Model.)

A. LEPORESTIBR.

BELT FASTENING.

No. 392,873. Patented Nov. 13, 1888.

WITNESSES, IIVVE/VTOI? PETE S. Fholublnognphar, Washinglnn. B C

' VNITED STATES PATENT Fries.

ALEXANDBE LEFORESTIER, OF PHILADELPHIA, PENNSYLVANIA, ASSTGNOR OF ONE-HALF TO B. F. BANES, OF SAME PLACE.

BELT-FASTENING.

SPECIFICATION forming part of Letters Patent No. 392,873, dated November 13, 1888.

Application filed August 13, 1888. Serial No. 282,685.

To aZZ whom it may concern.-

Be it known that I, ALEXANDRE LEFOREST- IER, a citizen of the Republic of France, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Belt-Fastenings; and I do hereby declare the following to be a sufficiently full, clear, and exact description thereof to enable others skilled in the art to make and use the said invention. 7

This invention relates to f astenings for uniting the ends of machine-belting so as to form endless bands for the transmission of power by frictional contact with pulleys, and has for its object the greater convenience of application and removal, the avoidance of large perforations and consequent weakening of the band incident to the use of lacings, better flexibility of the joint, and consequent closer contact of the band at the joint to the pulley-surface, and the avoidance of risk of accidental injury incident to the use of ordinary belt-hooks and belt-studs. In addition to these desiderata, this invention is from its form susceptible of cheaper production than other belt-fastenings, and can be removed and again used without impairingits value. To effect these results this invention may be briefly described as consisting of a peculiarly-shaped flat link and bent cross-bars, hereinafter fully described and claimed and shown in the drawings annexed, in which Figure 1 is a front view of one form of this invention as applied to the ends of machinebelt, the band being drawn in dotted lines. Fig. 2 is a side view thereof with band shown in the same manner. Fig. 3 is a detached view of the link. Fig. 4 is a detached view of one of the bars as seen from the front, and Fig. 4. as seen from beneath. Figs. 5 and 6 show a detached view of a modified form of link.

The same ordinals indicate like parts in the several figures.

1 represents a link having one straight side, 2, and the other side, 3, concave or receding (No model.)

below the level of two enlargements, 4, having eyes 5, through which fit easily curved wire pins or bars 6, bent in the central part of their length like the upper line of the astronomical sign of Libra, r-\ The bars are flattened on the straight parts and at the ends round, so as to avoid abrasion of the belt and to facilitate their introduction with the eyes 5. 5 5

As shown in Figs. 1, 2, and 3, the links are made of fiat plates of metal, preferably by a piercing-press, and, as shown in Fig. 5, of wire bent to form the eyes 5. The link shown in Fig. 6 has an eye, 5, on one end only, and

T on the other end a T-head, with a neck, 8,

bent upwardly.

To use this invention, small flat perforations are made lengthwise in the belt and the eyes of the links passed through from the under 6 side. The pins 6 are then inserted, and when the band is strained on the pulleys for use the bars act as pivots in facilitating flexure. In passing the pulleys the ends of the bars indent the leather and acquire a firmhold therein, being so far embedded as not to be liable to catch or hook on objects coming in contact with the bars. The link, from its flat form, requires but a narrow aperture for its insei tion, and therefore impairs the strength of the belt slightly,while the bars 6, spreading upon practically the entire width of the band, collect and transmit its whole strength to the links 1.

In the form shown in Fig. 6 the end of the link marked 4 is passed into the aperture in one end of the band from the outer side, and then outward from the inner side of the other end of the band, and a bar, 6, is introduced in the eye Upon strain being applied to the 8 5 band the T-head 7 seats and beds itself in the band at one end of the band and the bar 6 into the other.

I am aware that driving-bands have had their ends united by links passed through 0 them and secured by straight rods passing through the eyes of several links and resting upon the outer surface of the band. These are objectionable on account of forming a projecting lump on the band and impairing the said eyes and arranged to permit the eyes to [O flexibility at that point, and are hereby disembed in the thickness of the band, While the claimed; but, straight ends rest on the surface thereof, sub- Having described my invention and operastantially as described and shown. 5 tion thereof, what I claim is- The herein-described belt-fastener, consisting of a link, 1, with a recess upon one side between two eyes formed in the ends, combined with centrally-bent cross-bars fitting in 1 ALEXANDRE LEFORESTIER.

WVitnesses:

ALEX. H. SIEGEL, J. DANIEL EBY.