US758516A

US758516A - Air-pump.

Info

Publication number: US758516A
Application number: US17257101A
Authority: US
Inventors: John E Fisher
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-05-15
Filing date: 1901-05-15
Publication date: 1904-04-26
Anticipated expiration: 1921-04-26

Description

PATBNTED APR. 26, 1904. J. B. FISHER.

AIR PUMP.

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A 7TOHNE YS UNITE STATES Patented April 26, 1904.

JOHN E. FISHER, OF NEW YORK, N. Y.

AIR-PUMP.

SPECIFICATION forming part of Letters Patent No. 758,516, dated. April 26, 1904. Application filed May 15,1901. Renewed eptember 10,1903. Serial No. 172,571. (No model.)

To all whom it may concern:

Be it known that I, JOHN E. FISHER, a citizen of the United States, residing in New York, borough of Manhattan, in the State of New York, have invented certain new and'useful Improvements in Air-Pumps, of which the following is a'specification.

This invention relates to. certain improvements in air-pumps, and more particularly to improvements in that class of air-pumps which are adapted for use by cyclists for inflating cycle-tires; and the object of the invention is to provide a conveniently-operated air-pump in which all the parts are compactly held to gether for being carried in the pocket or toolbag and which is of simple construction, so that it can be supplied at a low price.

For this purpose the invention consists in the combinatiomin an air-pump with a handle-section, of a telescoping foot-section provided at its outer end with a backwardlyturned portion located beyond the side of the handle-section and a flexible connecting-tube connected with said backwardly-bent portion and adapted to lie alongside said handle-section.

In the accompanying drawings, Figure 1 represents a side elevation of my improved airpump, showing the parts in position for use. Figs. 2 and 3 are respectively side and front elevations of the air-pump, showing the same folded up after use, so as to be carried in the tool-bag of the cycle. Fig. i is a detail vertical central section through portions of the cylinder or handle-section,piston-rod, and piston; and Fig. 5 is a horizontal section through the handle-section on the same scale as Fig. 4:.

Similer letters of reference indicate corresponding parts.

Referring to the drawings, A represents the handle-section or cylinder of my improved airpump, which is closed at one end and provided at the opposite end with a detachable screw-cap a. In the handle-section A is arranged the piston B, which is preferably com posed of a tubular shank I), having a flange or washer Z) secured thereto at its inner end, and a packing 6 of leather or other suitable material, secured in position on the flange by means of ascrew b which is screwed into the shank b and provided with a perforation b v for the passage of the air from the space in the cylinder below the packing into the tubular shank Z). To the shank b is secured, by soldering or otherwise, the tubular piston-rod G, which is free to move through the cap a and which is bent outside of the cylinder back toward the same, as shown at c, said bend being preferably semicircular and the backwardly-turned portion being located beyond the side of the handle-section. To the portion 0, which is threaded for the purpose, is applied the connection cZof the usual flexible connecting-tube D, the opposite end of which is provided with a nipple cl for attachment to the valve of the tire to be inflated. To the bend '0 is pivoted, as by means of a keeper 6 provided with eyes at opposite sides, a U- shaped foot-piece E. erably bent of wire of suitable strength, and its outer end is turned up at an angle, so as to form a short bent portion a or clamp of approximately the width of the tube D, as shown, which engages with and serves for retaining the connecting-tube D alongside the tubular handle-section A' when the pump is folded up for being carried in the tool-bag of the cycle.

The size of the bend c is such that when the pump is collapsed, as in Fig. 2, the portion 0 of the piston lies close to the cap a and body of the cylinder at the side of the latter, so that the flexible tube D is without injurious bend when not in use.

When the air-pump is to be used, connection of the nipple OZ is made with the valve of the tire and the foot-piece is swung in the direction of the arrow in Fig. 2 into position shown in Fig. 1, so as to be at right angles to the tubular piston-rod, which latter rests by its bend 0 upon the ground. The foot of the user is then placed on the foot-piece, while the cylinder is moved up and down by hand upon the piston and piston-rod, so that the air is drawn into the cylinder through the opening a of the cap, whence it passes the flange b and packing and is expelled through the perforation 6*, shank Z2 piston-rod (J, tube D, and the tire-valve into the tire. When the tire is inflated, the tube D is disconnected, the

The foot-piece is prefpiston-rod forced into the cylinder up to the end of the same, as in Fig. 2, and the footpiece swung over and placed alongside the cylinder, so that the bend at its outer end grips the tube. The entire pump may then be placed in the tool-bag.

\Vhen the parts are in the position shown in Fig. 2, the foot-piece and tube Dserve each for retaining the other in position, for the reason that the tube D is flexible and not pivoted, while the foot-piece is stiff and pivoted eceentrically to the connection of the tube D with the portion 0' of the piston, and the bent end 0 frictionally engages the tube D.

The advantages of my improved air-pump are, first, that the same is composed of few parts, so that it can be readily manufactured at a comparatively low price; secondly, that the connecting-tube is always connected with the piston-rod, so as to be instantly ready for use without requiring to be screwed onto the same; thirdly, that the foot-piece serves for holding the connecting-tube in straight condition alongside of the cylinder when the airpump is folded up after use.

- Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In an air-pump, the combination, with a handle-section, of a tubular piston-rod located in the same and provided at its outer end with a backwardly-turned portion located beyond the side of the handle-section, and a flexible connecting-tube connected with said backwardly turned portion and adapted to lie alongside said handle-section, substantially as set forth.

2. In an air-pump, the combination, with a handle-section, of a tubular piston-rod located in the same and provided atits outer end with a backwardly-turned portion located beyond the side of the handle-section, a flexible connecting-tube connected with said portion and adapted to lie alongside said handle-section, and a foot-piece pivoted to said piston and having its outer end bent into a clamp of approximately the size of the tube, substantially as set forth.

3. In an air-pump, the combination, with a handle-section, of a tubular piston-rod located in the same and provided at its outer end with a backwardly-turned portion located beyond the side of the handle-section, a flexible connecting-tube connected with said portion and adapted to lie alongside said handle-section, and a foot-piece pivoted to said piston and having its outer end bent into a clamp of approximately'the size of the tube, said footpiece being pivoted to said piston eccentrically to the connection of the flexible tube with the same, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing Witnesses.

JOHN E. FISHER.

\Vitnesses:

PAUL (ionrnL, JosnrI-I H. NILES.