US157527A

US157527A - Improvement in expanding nozzles for hose

Info

Publication number: US157527A
Authority: US
Publication date: 1874-12-08
Anticipated expiration: 1891-12-08

Description

w,` LEYGGETT. Expanding-Nozzles for Hose.

Patented Dec. 8,1874.

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NITED STATES PATENT OFFICE.

WILLIAM LEGGETT, OF NEW YORK, N. Y.

IMPROVEMENT IN EXPANDING NOZZLES FOR HOS-E.

Specification forming part of Letters Patent No. 157,527, dated December 8, 1874; application filed September 30, 1874.

To all whom it may concern.'

Be it known that I, WILLIAM LEGGETT, of New York city, in the State of New York, have invented certain Improvements in Expanding Nozzles for Hose, of which the following is a specification:

A patent which has recently been allowed me describes a series of expanding staves, hinged at one end to the end of a fixed tube or nozzle, and caused to overlap more or less upon eachother by suitable means, as the nozzle is desired to be expanded or contracted. It also describes a lining of thin sheet metal, in four or other convenient number of pieces, adapted to be pressed outward by the force of the issuing jet, and to form a smooth lining material for what would otherwise be the ridged edges of the staves.

. I have discovered, by my experiments therewith, that water is liable to leak laterally outward through the joints, even when thus guarded by the overlapping thin lining. The loss of tbe water is not `of importance, but the annoyance to the operator, in consequence of water trickling down on the nozzle, is considerable under ordinary conditions, and in intense freezing weather may become serious. My present invention provides for stopping all this lateral escape. Y

I have devised a continuous lining of rubber, with ecient means for holding it firmly in place at or near the hinged ends of the staves. This lining is pressed outward by the force of the water against the inner surface' of the thin sheet-metal lining previously hdescribed. The rubbershould be glazed or made as smooth as possible, and its outer end should coincide or be fiush with the outerends ofthe lining metal.

The following is a description of what I consider the best means of carrying out the invention. The accompanyin gdrawin gs form a part of this specification.

Figure l is a vertical section, and Fig. 2 is an end view. Fig. 3 is a section of a portion on a larger scale.

Similar letters of reference indicate corresponding parts in both figures.

A is the fixed tube, which forms the foundation for my peculiar construction. A is the stout outer thread thereon, which secures it within the ordinary butt, (not represented.) B are the staves. Dis a movable ring, moved outward and inward by any suitable means which controls the position of the bars B. G are the thin sheet-metal lining pieces before referred to. M is a tapering tube of soft vulcanized rubbermolded or otherwise produced, with the interior formed as smooth as the skill of workers in this material can attain. 'The elasticity of the material allows the small end to be contracted into less than its diameter as the staves are compressed together, and allows it to be expanded tomore than its normal diameter by the stream of water when the parts are properly conditioned therefor. The rubber M is held at the large end by the following means: A shoulder, ct, is formed in the inte-rior of the portion A, preferably by means of aring riveted in to confine the sheet metal D, and a ring, m, is pressed down upon this so as to apply within the rubber M, and to force it outward against the interior of A,

Aand also'endwise against the shoulder a.

Thisring may be without threads. It may be armed with small points or Toughened like a file on its exterior surface to aid in holding the rubber more firmly, but my experiments indicate no necessity for such nicety. I believe it will hold the rubber with perfect firmness Without even rougliening or cementing. It is pressed down by a follower-rin g, m ,which is formed with a fine screw-thread on its exterior, which engageswith a corresponding screw-thread in the interior of the part A.

I claim as my invention- The elastic liningpiece M, secured within the expanding nozzle B D G, and serving, in combination therewith, to prevent any leakage through the same, substantially as and for the purposes herein specified.

In testimony whereof I have hereunto set my hand this 26th day of September, 1874, in the presence of two subscribing witnesses.

WILLIAM LEGGETT. Witnesses: Y

W. C. DEY, E. VOLKMANN.