US757919A - Machine-belting and method of making same. - Google Patents

Description

No. 757,919. 7 PATENTED APR. l9, 1904.

, B. G. HARLEY.' MACHINE BELTING AND METHOD OF MAKING SAME.

APPLICATION FILED D20. 26. 1903.

, no MODEL.

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UNITED STATES Patented April 19, 1904.

PATENT ()FEIcE.

MACHlNE-BELTING AND METHOD OF MAKING SAME.

SPECIFICATION forming part of Letters Patent No. 757,919, dated April 19, 1904.

Application filed December 26, 1903. Serial No. 186,658. (No model.)

To all whom, it may concern:

Be it known that I, BER'IRON G. HARLEY, a citizen of the United States, residing at Wyn cote, in the county of Montgomery and State of Pennsylvania, have invented new and useful Improvements in Machine-Belting and Methods of Making the Same, of which the following is a specification.

This invention relates to new and improved machine-belting and to a method of making the same.

The object of the invention is to provide a machine-belting composed of a plurality of plies having means to prevent stretching and breaking of the belting without detracting from the flexibility thereof or lessening its adaptability to conform to the periphery of pulleys and to adhere closely thereto for driving purposes. The plies of the belting, with the interposed metallic band, are secured together in a novel and efficient manner, whereby separation of the plies of the belting is effectually preventedand the life of the belting materially increased.

My invention is set forth in the following description and particularly pointed out in the concluding clauses of claim, reference being made to the accompanying drawings, in which Figure 1 is a view in elevation, partly in section, exhibiting a section of belting embodying one form of the invention. Fig. 2 is a transverse sectional view on the line 2 2 of Fig. 1. Fig. 3 is a transverse sectional view, on an enlarged scale, showing the manner of construction of the belting exhibited in Fig. 1. Fig. 4: is a similar view showing another form of the invention. Fig. 5 is a transverse section through a piece of belting, showing a slightly-modified form of the invention.

Referring to the drawings and to Figs. 1, 2, and 3 thereof, there is exhibited the simplest form of embodiment of the invention, in which the belting is shown composed of two plies of flexible material 1 and 2, preferably of leather, interposed by a metallic band or strip 3 of less width than the plies, leaving thereby a space along the edges to receive lines of stitching 4 for preventing the separation of the belting along its sides. The plies of the belting are united by any suitable cement, and before the cement hardens the lines of stitching are formed. As shown in the drawings, the lines of stitching are composed of thread or cord of suitable vegetable material or of wire, and as the stitches are made through the plies of the belting a portion of the cement is drawn through the openings formed for the stitches, as shown at 5 in Fig. 3, so that when the cement sets and hardens around the stitches the latter will be positively anchored in position, so that under the use of the belt as the loops on the outer sides thereof become worn away the stitches will still be held firmly combined with the belting, and thus in a positive manner prevent separation of the plies. The band or' strip 3 may be of any suitable metal, preferably of steel, and is provided for the purpose of preventing stretching or breaking of the belt. Generally a single band 3 will be all that is necessary with belts of ordinary thickness; but should a belt of great width be employed two or more of these bands may be used, as shown in Fig. 5, said bands being indicated by 5. When a plurality of bands are employed, the fastening means will be disposed along the edges of the belting, as described, and centrally thereof between the bands, as shown at 6. As shown in Fig. 1, there are but two rows of stitches employed,

these being disposed contiguous to the edges of the belting; but, if preferred, four rows of stitches may be employed, as shown in Fig. I

4, two of which (designated by 7 being disposed adjaeent to the edges of the belting and two other rows, 8, being disposed contiguous to the band.

While buta two-ply belting has been herein shown and described, it is to be understood that the invention is not to be limited thereto, as three or more plies may be employed and still be within the scope of the invention.

It will be seen from the foregoing description that while the procedure of this invention is exceedingly simple for the purpose designed it may be readily carried into effect without the employment of expensive or intricate machinery and that it will be thoroughly effective in use for the purposes designed.

Having thus described the invention, what I claim is- 1. A belting composed of a plurality of plies of flexible material cemented together and embodying an interposed or intermediate metallic band of less width than the plies of flexible material, leaving cemented-together edges at opposite sides of such band, said edges being sewed together, the stitches being cemented in the thread-holes. J

2. The herein-described method of manufacturing machine-belting, which consists in interposing a metallic hand between a plurality of plies of belting material, cementing the plies of material together and, before the ccment is hardened or sets, stitching the plurality of plies of belting material together, whereby the stitching takes up cement and is cemented and anchoredin the stitch-holes, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

BERTRON G. HARLEY.

Witnesses:

CHAS. H. DOUGHERTY, EDWARD OLIVER.

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