US193907A

US193907A - Improvement in bellows

Info

Publication number: US193907A
Authority: US
Publication date: 1877-08-07
Anticipated expiration: 1894-08-07

Description

I. AGNEW. BELLoWs.

No. 193,907. Patented Ang. 7,1877.

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N, PETERS, PHOTQ-LHHOGRAPHER. wAsHsNGToN D C UNITEE STATES PATENT OFFICE.

JOHN AGNEW, OF PITTSBURG, PENNSYLVANIA, ASSIGNOB OF ONE-HALF HIS RIGHT TO WILLIAM W. SOMMERVILLE, OF SAME PLACE.

IMPROVEMENT IN BELLWS.

Specication forming part of Letters Patent No. 193,907, dated August 7, 1877; application tiled July 5, 1877.

To all whom it may concern Beit known that I, JOHN AGNEW, of Pittsburg, inthe county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Bellows; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had t0 the accompanying drawings, which form part of this specilication, in4 which- Figure 1 shows, respectively, a side elevation, longitudinal section, and end view of my improved bellows-nozzle. Fig. 2 shows the head of a bellows with my nozzle attached. Fig. 3 is a top view of a blacksmiths bellows, exhibiting my invention. 'l

This invention relates to the construction of blaoksmiths bellows; and consists in replacing the old conical smooth nozzle by a screwthreaded one, and in the specific construction of the same, whereby the bellows is better adapted for use in certain industries.

At nearly every oil-well in the oil-producing. regions a forge is maintained for the purposes of repairs and construction of tools or appliances; but, ou account of the danger ofconilagration, the forge must be located some distance from the well, while, at the same time, it is the general custom to place the bellows on or under the derrick, where it can be operated by the walking-beam, or other part of the machinery, connecting-pipes being arranged from the bellows-nozzle to the forge. This has been done by taking the well tubing or casing, (quantities of which are usually on hand,) inserting the conical smooth nozzle into one end, and packing the joint. This is a very crude way of doing, and is seldom airtight, is weak, and the consequence is an irregular and unreliable blast at the forge.

This defect I desire to overcome by my invention, which is as follows: I tit the head A of the bellows with a nozzle, B, projecting but slightly, and provided witha thread or threads, either exterior or interior, or both. The object of an outer and inner thread is to provide a -means of attaching either a piece of tubing or casing, according to which is on hand and to be spared, the two being of different sizes.

The part of Vnozzle B which is fitted into the head A is slightly conical, and has one or more inclined lugs or wings, b, longitudinally disposed on its surface. The head A is bored out to receive it, and recessed for the lugs b. It is firmly driven into the head, where the lugs prevent it from turning when making the connection with the blast-conductors. (lonstructed thus, no trouble is met in connecting.

Quantities of both tubing and casing are always at hand, and it is simply necessary to screw either of them on the nozzle to make a firm, substantial, and air-tight connection, which will not work loose nor require attention 5 hence the forge-blast will be regular and reliable-a matter ot'im portance, because often a great deal depends upon the speed with which repairs or alterations can be effected.

What I claim as my invention is- The combination of the bored-out head A and the threaded nozzle B, having one or more longitudinal lugs, b, substantially as specified.

In testimony that I claim the foregoing I have hereunto set my hand this 27th day'of June, 1877.

JOHN AGN EW.

Witnesses:

A. V. D. WATTERSON, MARSHALL BROWN.