US1221131A - Air-compressor. - Google Patents

Description

W, F. BLANCHET.

AIR COMPRESSOR.

APPLICAT1ON FILED JULY 17, 1916.

Patented Apr. 3, 1917.

LQQL13L Snow wow W. F- FQLHNCHET WILLIAM F. BLANCHET, OF TAMPA, FLORIDA.

nm-comrnnsson.

Application filed July 17, 1916.

To all whom it may concern:

Be it known that 1, WILLIAM F. BLAN- oHE'r, a citizen of the United States, residing at Tampa, in the county of Hillsborough and State of Florida, have invented certain new and useful Improvements in Air-Compressors, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in air compressors and has relation more particularly to a device of this general character especially designed and adapted for use in connection with motor-driven vehicles; and it is an object of the invention to provide a device of this general character having novel and improved means whereby the same may be readily operated from the drive shaft of the motor.

It is also an object of the invention to pro vide a device of this general character having novel and improved means whereby the compressed air may be held in storage so that the same may be employed, when required, for inflation of tires; for the operation of a pneumatic signal; or for other purposes which the requirements of practice may permit.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved air compressor whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a diagrammatic view partly in side elevation and partly in section illustrating an air compressor constructed in accordance with an embodiment of my invention- Fig. 2 is a view partly in top plan and partly in section of the air compressor as herein embodied; and I Fig. 3 is an enlarged fragmentary view taken through the tank, cylinder and piston as herein included.

As disclosed in the accompanying drawings, C denotes the chassis of a motor-driven Specification of Letters Patent.

Patented Apr. 3, 191W.

Serial No. 109,760.

vehicle and positioned therebeneath and disposed transversely thereof is the storage tank T substantially cylindrical in form. In practice it is preferred that this tank be po sltioned at a point substantially midway be- ;twelen the front and rear wheels of the ve- The ends of the tank T are provided with the tubes 1 having interposed therein the controlling valves 2. The tubes 1 are adapted to have engaged therewith a hose of suitable length which is also adapted to be operatively engaged with the inflating valves of a tire, whereby it will be perceived that when required the tires of the wheels of the vehicle may be readily and conveniently inflated.

The tank T is provided with a safety valve 3 and overcome excessive pressure within the tank T as is believed to be selfevident. The tank T has also in communication therewith a tube or conduit 4 in communication with the gage G which may be positioned to the dash of the vehicle or at any other convenient locality so that the pressure within the tank T may be readily and conveniently determined. The tank T has also in communication therewith a second tube or conduit 5 in communication with a pneumatic signal P of any conventional type and which is preferably placed under the hood of the car. The flow of the air through the conduit or pipe 5 may be controlled in any convenient manner.

The tank T is positioned above the transmission shaft S and extending forwardly from said tank T in substantially vertical alinement with the shaft S is a cylinder 6 in communication with the tank through the opening 7 under control of the check valve 8. Arranged for rectilinear movement within the cylinder 6 is the compression piston 9 having disposed therethrough the port 10, the inner end of which having coacting therewith the flat or check valve 12 for a purpose which is thought to be self-evident.

Extending outwardly from the piston 9 is the rod or stem 1 1 which is disposed through the guide 15 operatively engaged with the cylinder 6, and the outer end of said rod or stem 14 has operatively engaged therewith, and preferably through a ball and socket joint 16, a pitnam 17 which is also operatively engaged, as at 18, with the disk 19, said connection-18 being eccentric to the axial center of said disk 19 for a purpose which is believed to be clearly apparent to those skilled in the art to which my invention appertains.

D denotes the drive shaft of the engine or motor and which is operatively engaged with the transmission shaft S through the medium of the knuckle joint K, and fixed to said shaft D" and in front of the knuckle K is the friction Wheel having its periphery rounded in cross section and which is'adapted to coact with the disk 19 to impart the requisite rotation thereto in order to reciprocate the piston 9 so that air may be compressed within the tank T.

Extending upwardly from the disk 19 at the axial center thereof is a trunnion 21 to which is swiveled, as at 22, the lower end of the foot lever 23 which extends upwardly through the floor F of the car, and said lever 23 is provided with the teeth 24: coacting with a plate 25 or the like, whereby it will be perceived that upon depression of the lever 28 the disk 19 may be frictionally engaged with the wheel 20 and held in such contact. Upon release of the, foot lever 23 the disk 19 will be raised out of contact with the wheel 20 and maintained in such 0 mmtive position through the medium 0 the spring 26 as is believed to be clearly shown in the accompanying drawings.

By having the periphery of the wheel 20 rounded in cross section it will be self-evident that a perfect contact between the wheel 20 and the disk 19 will be assured. This construction also compensates for the up and down motion of the rear end of the vehicle should the compressor be in operation while the car is in motion.

From the foregoing description, it a is thought to be obvious that an air compressor constructed in accordance with my invention is of' an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled, and it will also be obvious that my invention is susceptible of some change and modification without material departure from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement andformation of the several parts herein shown in carrying out my invention in practice, except as hereinafter claimed.

I claim:

In combination with the chassis of a motor-driven vehicle and a drive shaft therefor, a tank supported by the chassis and provided with a discharging means, a forwardly directed cylinder carried by the tank and in communication therewith, a piston mounted for rectilinear movement within the cylinder, :1 wheel fixed to the drive shaft, a disk rotatable about a vertical axis and positioned above the wheel, said disk being capable of vertical movement and adapted to contact with the periphery of the wheel, a foot lever in swiveled engagement with the disk at the axial center thereof and affording means for forcing the disk into contact with the wheel, automatic means for moving the disk away from the wheel, and an opera.- tive connection between the disk and thepiston whereby said piston is reciprocated upon rotation of the disk.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

WILLIAM F. BLANCHET.

Witnesses:

JAMES N. Bonn, H. G. TURNER.

Images