US91656A - Improved machine-belting - Google Patents

Description

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Letters Patent No. 91,656, dated June 22, 1869 anterlat'ed- June 18, 1869.

IMPROVE!) MACHINE-BELTING.

The Schedule referred to in these Letters Patent and makingp'art of the same.

To all whom. it may concern: y

y Beit known that I, JAMES MONTGOMERY, of the city, county, and State of New York, have invented certain new and useful Improvements in Machine- Belting; and I do hereby declare that the following is a suficiently full, clear, 'and exact description thereof, to enable one skilled in the ait to which my said in- `vention appertains vto make and carry it into effect,

reference being had to the accompanying drawings, which are made a part of this specification.

' Ihe object of my invention is to'so construct leather :belting for' driving machinery, that without increase 4of cost, additional strength may be imparted to the -edges of the belt Where it is most liable to Wear and break; and, further, in the employment or use of means for connecting the parts of the belt, which will involve less cutting away of material, and consequent weakening, than fastenings incommon use.

1n the drawings- Figure 1 represents a plan of a piece of quadruple belting illustrating my invention.

Figure 2 shows a longitudinal section of' the same at a; x, fig. l.

Figure 3Yis a plan view of a piece of single belting, with edges turned down and secured by stitching.

Figure4 shows a longitudinal section thereof at y y,

fig. 3.

Figure 5 is a plan view of my improved single belt- Y ing without stitching.

Figure`6 represents a transverse section of the same at z z, iig. 5.

In carrying ont my invention, I form on the leather, or other material, bevelor feather-edges a a, and turn these down, so` that no rawor single edge will exist on the finished belt. l 's The turningr and pressing down o f the edges may be effected by passing the belt between suitable rollers, presses, or dies, provided with circumferential grooves, corresponding Vin size and. shape with the finished belt which is to be.',produced.

For securing the tapered' and turned edges, I employ'Water-proof oement,orrstitching, or rivets, or any other suitable means of fastening.

Atrthe endswhere it is necessary to punch holes for the reception oflacings, or other means of con- A nection, I fold transversely, as shownI at l), in Figure 7, so as to impart additional thickness so far in excess of the amount of material necessarily cut away in punching the holes c c that no weakening occurs at theseV points.

Belts of any required strength may be produced by folding one thickness within another, as clearly shown in iig. 1, the edges of the 'respective leaves or sheets being brought together and lapped in the centre, and secured by a single row of stitching throughfthe whole.

In making triple belts, the' inner or centre piece may be inserted in single lflat form, but I prefer to turn up thefedges of this 'also'.

The advantages of this improvement are various. Among others, the lateral strain, occurring alternately, first on one side and next on the other, thereby enormously increases the strain on that side of the belt.

It is met by presenting the additional strength due to turning the leather down, as shown, instead of cutting the material` in layers, thereby presenting the raw edges of the leather,as also the cement lying between the same, whereby, being exposed to wet or moisture, the belt is rapidly destroyed by the solvent action of such moisture; the raw edges ofthe leather will be far more readily torn and disrupted than the improved edge made known within.

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

1. I claimv constructing leather belting for machinery with folded edges, substantially as and for. the purposes set forth.,

2. .I further claim thickening the ends of the belting, to compensate for material punched out to receive the lacings, or other fastenings.

' JAMES MONTGOMERY.

Witnesses:

' J. E. M. BOWEN,

W. H. BRnnnToN.

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