US620822A - Air-compressor - Google Patents

Description

Patented Mar. 7, I899. H. E. ANDERSON.

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UNITED STATES PATENT EEicE.

HENRY E. ANDERSON, OF OHEBOYGAN, MICHIGAN.

AIR-COMPRESSOR.

SPECIFICATION forming part of Letters Patent No. 620,822, dated March '7, 1899.

Application filed March 1, 1898.

To all whom, it may concern:

Be it known that I, HENRY E. ANDERSON, of Cheboygan, in the county of Oheboygan and State of Michigan, have invented a new and Improved Air-Compressor, of which the following is a full, clear, and exact description.

Myinvention relates to an improy ement in air-compressors, and comprises certain novel features of construction, which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is an end elevation of my device. Fig. 2 is a cross-sectional elevation taken upon the line 2 2 of Fig. 1. Fig. 3 is a longitudinal section taken through the air-compressing cylinder. Fig. 4 is a cross-section taken upon the line 4 4. of Fig. 3. Fig. 5 is a longitudinal section taken through the hollow shaft of the device, showing the manner of connecting it to a fixed non-rotating shaft; and Fig. 6 is a cross-section taken upon the line 6 6 of Fig. 5.

One form of my invention is shown in the drawings, the same being the form in which the device is mounted to rotate upon a cen tral shaft and is supported upon a fixed frame. This frame A may be made of any suitable shape, and is provided with bearings adapted to receive the shaft B, upon which the air-compressing mechanism is mounted.

Supported upon the shaft B is a framework 0, so constructed as to provide guideways extending in the direction of chords of a circle. In these guideways are mounted weightsD of such size as to have a limited reciprocation in said guideways. -As herein shown, four of these guideways and four weights are provided, each of the weights being connected by an arm F to the piston-rod f of an aircompressing cylinder E, fixed to the framework C. The cylinders E may be of any ordinary double-acting constructionthat is, so

that they compress the air when the weights are moving in either direction. The construction used is shown in Figs. 3 and 4t and provides for puppet-valves e and 6, located in each head of the cylinder, one of the valves being an admission-valve and the other Serial No. 672,160. (No model.)

a discharge-valve, these valves connecting with a common discharge-pipe J. The cylinders E are also provided with a coolingjacket G, through which circulates a supply of cooling-water. The chambers formed by this cooling-jacket are connected by means of pipes I to one portion of the main shaft B,

which shaft is hollow and is provided with two partitions H. One of the partitions is provided with a central hole which receives the watersupply pipe I). The water-supply pipe I, connecting the shaft with the coolingchambers surrounding the cylinder, is connected to the main shaft between these two partitions.

The pipe I, which conveys the return water away from the jackets, is connectedto a common discharge-pipe I and the latter is connected by radial pipes 1 to the main shaft B at one side of the partitions H. By this construction the cooling-water enters through the pipe 2) into the chamber between the two partitions, and from there flows B, and within this cup is a pipe-section B 7 which has a washer B of leather, rubber, or similar flexible packing material, secured to the end thereof by means of the ring 13. This washer B extends beyond the pipe-section B and is pressed against the inner face of the flange upon the outer end of the cup B and thus forms a tight joint. or other suitable conveying-pipe is connected to the outer end of the pipe-section 13 and conveys the air to any point where it is desired. A flange B just outside the flange on the cup 13 prevents the pipe-section B? from being forced inward. A joint of this or similar character should be provided at the other end of the shaft.

The operation of the device is as follows: The mechanism is rotated upon its shaft by some outside power. As the weights D reach A hose 15 the top of the mechanism they have a tendency to slide toward the opposite end of the guideways C. As the weights drop they move the piston of the air-compressor, and thus compress a certain quantity of air. The two weights D, which are upon each side of the device, as shown in Fig. 1, are at the end of their stroke. The weights D as they are caused to rise from their lower position by the revolution of the mechanism drop back in the guideways, and thus compress air in the cylinders. It will thus be seen that a complete double stroke of the air-compressing piston is caused during each revolution of the device. In consequence of this a continual supply of fresh air is furnished by the device and discharged through the hollow shaft. This air may be used for any purpose desired.

The mechanism, as shown in Figs. 1 and 2, is provided with an outer circular casing J, which may be constructed of boiler-iron or any other suitable material, thus transforming the device in appearance into a roller. If this device be taken off of the fixed mounting (shown in Figs. 1 and 2) and rolled upon a track or any supporting-surface, the air-compressing mechanism will be operated in identically the same manner. This device may therefore be used either upon a fixed mounting or by rolling upon a surface, and such surface may be a specially-prepared one, as a track having rails thereon, or may be the surface of the ground.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent?- 1. An air-compressor, comprising a frame revoluble about a shaft, and having guideways extending in the direction of chords of a circle about said shaft, weights mounted in said guideways to have a limited reciprocating motion, an air-compressing cylinderand a piston therein attached to each of said weights, substantially as described.

2. An air-compressor, comprising a frame revoluble about a shaft, and having guideways extending in the directionof chords of a circle about said shaft, weights mounted in said guideways to have a limited reciprocating motion, an air-compressin g cylinder and a piston therein attached to each of said weights, an axial discharge-pipe, and connections from the cylinders to said discharge-pipe, substantially as described.

3. An air-compressor, comprising a frame having a central hollow shaft with two central partitions, guideways extending in direction of chords of a circle about said shaft, weights in said guideways having a limited reciprocation, an air-compressor cylinder and a piston therein attached to each weight, dis charge connections from the cylinders to one end of the shaft, said cylinders having water-chambers surrounding and cooling the cylinders, and water connections from said chambers to the other end of the shaft, substantially as described.

4. An air-compressor, comprising a frame having guideways therein, weights having a limited reciprocation in said guideways, an aircompressor operatively connected with each weight, and having water circulating or cooling chambers, a hollow shaft upon which said frame turns, said shaft having two crosspartitions, air-discharge pipes connecting the cylinders to one end of said pipe, a circulating-pipe passing through one end of the hollow shaft and one partition, and connections from the circulating-chamber of each cylinder to the shaft upon the opposite side of said partition, substantially as described.

5. An air-compressor, comprising a cylinder having guideways therein,weights having a limited reciprocation in said guideways, an aircompressing cylinder and a piston therein connected with each weight, substantially as described.

HENRY E. ANDERSON.

Witnesses:

H. W. SWIFT, ARCHIE STALKER.

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