US94757A - Improved flat chain - Google Patents

Description

linite /51am @sind @Mitte CHESTER KING AND S. P. JOHNSON, OF CLEVELAND, OHIO; SAID JOHNSON ASSIGNS HlSRIGHT TO 4SAID KING.

ALetters Patent N 94,757, dated Scptembw 14, 1869.

IMPROVED FLAT CHAIN.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom'fit may concern Be. it known that we, CHnsTnn KING and S. l. JOHNSON, of' Cleve-land, in the county of Cuyahoga, and State of Ohio, have invented certain new and useful Improvements in Chains; and we do hereby declare that the following is a full and complete description of the same, reference being had to thc accompanying drawings, making a part of this specification, in whichliigure 1 is an edge view of the chain.

Figure 2, a side view of the same.

Like letters of reference refer tolike parts in the several views presented.

The nature of this invention relates to a dat chain, the peculiar construction of which being such that the links thereof cannot be compressed together, in consequence of any unusual strain or twisting exerted upon it.

This chain, as will be seenin g. 2, is of a dat character, and is made of cast malleable iron.

The upper-'end of each link terminates in a hook, A, whereas the lower ends are connected by a bar, B, to which said hooks are secured, as shown in the drawing.

Projecting from the bar, upwardly between the hooks, is a pair of curving lugs, a, whereby the said hooks are retained in close relation to the sides of the link, forming a circular bearing or hole, into which the hook is caught and secured.

By thus interposing the lugs between the hooks, they are, in consequence thereof, prevented from being sprung together, should the chain be subjected to suddenor violent twisting; hence, the open character of the links will be. preserved, and at all times in proper condition to'run over and receive the points of the sprocket-wheel, in connection with which it is used for drawing water, und for which purpose it is mainly intended.

VVe are aware that flat chains have been used, and still are used for this purpose. above specified, but such chains are usually made of wire, bent into proper shape for the links, and connected to each other by hooks.

In some of such chains the har to which the hooks are attached is straight-,'in consequence of which the chain, on heilig twisted, and which it is liable to be by the swinging and rotary movement ofthe bucket, the hooks become forced together, and thereby prevent the chain from engaging thewheel, and therefore it becomes inoperative.

To avoid this defect, some chains have the bar indented upwardly, thereby presenting a shoulder against which the hooks may draw, butin consequence of the weakness of the material, and the constant strain exerted upon the bar by the sprockets of the wheelyand'the tendeneyof the hooks to draw near to each other, the indentation or curve given to the bar straightens', and, therefore, becomes of no practical value after being used for a short while.

This difficulty is entirely obviated in our chains, as the curving nature of the lugs between the hooks is such as to enclose them, with the exception ofa little space at the top, thereby forming a? hole for the admission of the hook, and fromwhieh they cannot be forced by the twisting of the chain.

As above said, the links are made of cast malleable iron, instead of wire, and, therefore, are stronger and more durable than the ordinary chain?.

In order to mould them, the hooks of the pattern are arranged as shown in the upper link in fitr. 2, which,when the links are to be strung together, are twisted around, as shown in the second and third links, also shown in iig. 1.

Whatwe claim as our invention, and desire to secure by Letters Patent, is

The herein-described chain, the links of which are provided with lugs a, and form the hooks for connecting the links together, in the mannersubstantially as described, and for the purpose set forth.

' CHESTER KING.

S. l. JOHNSON.

VitnesseS:

J. H. Bumunen, ALLAN T. BRINsMAnn.

Images