US269519A

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Publication number: US269519A
Authority: US
Publication date: 1882-12-26
Anticipated expiration: 1899-12-26

Description

(N0 Model.) 3 Sheets-Sheet 1. M. GANDY. STRETGHING BELTING AND APPARATUS THEREFOR.

Patented Dec. 26, 1882.

W/ NESSE' S (No Model.) 3 Sheets-Sheet 2.

M. GANDY. STRETGHING BELTING AND APPARATUS THEREFOR. No. 269,519. Patented Dec. 26, 1882.

A M m W My i WT/YA'ESSES INVEN 70/? M AA A AA %;%fi

(No Model.) 3 Sheets-Sheet a. M. GANDY. STRETGHING BELTING AND APPARATUS THEREFOR. No. 269,519.

Patented Dec. 26, 1882.

WI TNESSES INVENTOB N. PETERs PhumLimu m ner. Walhlllgfnn. D. C,

FFICE.

MAURICE GANDY, OF LIVERPOOL, COUNTY OF LANCASTER, ENGLAND.

STRETCHING BELTING AND APPARATUS THEREFOR.

SPECIFICATION forming part of Letters Patent No. 269,519, dated December 26, 1882.

Application filed November 4, 1881. (No model.) Patented in Victoria October 4, 1880,

No. 2,904; in India February 26, 1881,

No. 565; in New South Wales March 28, 1881, N0. 919, and in Norway June '7, 1881, No.763.

To all whom it may concern:

Beit known thatI, MAURICE GANDY, a subject of the Queen of Great Britain, and a resident of the city of Liverpool, in the county of Lancaster, in that part of the United Kingdom.

of Great Britain and Ireland called England, manufacturer of cotton belting, have invented certain new and useful Improvements in Stretching Cotton-0anvas and other Machine Belts and Apparatus Therefor; and the following is a full, clear, and exact description-of my invention in such full, clear, and exact terms as to enable any one skilled in the art to which it appertains or is most nearly connected to make and use the same, reference being bad to the sheets of drawings annexed to this specification, and to the figures of rel'erence marked thereon.

My invention has for its object the nullifying or killing of the elasticity of machinebelts, more especially cotton-canvas belts constructed of cloths stitched together and saturated, as patented to me in the United States of America 1st day of June, 1880, No. 228,186, and is particularly applicable to the heavier class ot belts and main drivers.

I have found by experience that the only way to efi'ectually kill the elasticity of the heavier types of beltssuch as main drivers consists in the periodical taking up of the belt, and as this entails the undoing of and destruction of the lacing or fastening, and thereby weakens the belt, it is open to grave objec tions, and my present invention is essentially to avoid the necessity of this taking up by performinga similar operation prior to the application and use of the belt.

To efi'ect the object of my invention, I use the device which is illustrated in sectional elevation in Figures 1 and 2, Fig. 2 being a continuatiou Ol Fig. 1. Fig. 3 is an end view of Figs. 1 and 2. Fig. 4 is a plan showing my method of attaching the ends and taking up the slack.

On reference it will be seen that the device or apparatus consists of a frame-Work, A, on the ends of which are mounted a series ofrollers, E E E E, free to revolve on their axis. The belts under treatment are represented by B, and it will be seen that two methods of operation are represented-namely, the upper one shows the ends of the belt B connected together by the taking-up device F, and the under one shows one end of the belt B connectcd to a roller by a clamp, H,and the other end of the belt connected to another roller by a taking-up device, F, and the connection J.

It will be seen that the belt is stretched and its elasticity killed under precisely the same conditions that it would be subjected to when in nsenamely, the whole length simultaneously exposed to strain, which is applied through the device F, which consists of the screw-rod K, revolving by means of the nut b within thelink a. It will thus be seen .that hour by hour, day by day, as the belt gives by the drying operation and by the strain to which it is exposed, the belt can be taken up and its elasticity practically exhausted.

The method of attaching the device F or the devices H J to the ends of the belt B is illustrated in detail at Fig. 4, and consists of the plates e orf, which hold the belt between them, as in jaws, and are attached to the belt by bolts and nuts, stitching, lacing, or other convenient method.

It will be the belt to a continuous stretching operation which practically kills the elasticity.

I claim as my invention auddesire to secure by Letters Patent-- 1. The method substantially herein described of stretchiug belts, which method consists of first opening the belt through its entire length, of then stretching it over two or more rollers and connecting the ends by a suitable stretching' device, and 0t .1 hen applying tensile strain to its two ends and increasing it from time to time until the elasticity of the beltisexhausted, substantially as described.

2. The means substantiullyherein described of stretching belts, which means consists of the combination, with the two ends of a belt, B, of a taking-up device, F, and two or more rollers, E, set in a frame, A, the Whole coacting,subslant1ally specified.

MAURICE GANDY.

\Vitnesses:

FREDERICK J OHN CHEESBROUGH, JOHN HAMILTON REDMOND, Both of 15 W ater street, Liverpool, England.

as described, for the purpose