US746744A - Blowing-engine. - Google Patents

Description

110.746.744. PATENTED DEG.15,'1903.

' r F. M. RITES.

BLOWING ENGINE. I

APPLICATION FILED MAE. 5, 1903.

2 SHEETS-SHEET 1.

N0 MODEL.

"a mi Q I O a N Q N S r] k h R (a N 00 e R Q N 0 Q d NS WITNESSES: W MENTOR I ATTORNEYS No. 746,744. PATENTBD DEC. 15, 1903.

F. M. RITES. BLOWING ENGINE.

APPLIGATIDN FILED MAR. 5, 1903.

H0 MODEL.

2 SHEETS-SHEET 2.

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through exhaust-pipe 7.

UNITED STATES I Patented December 15, 1903.

PATENT OFFICE. Y

FRANCIS M. RITES, OF I'PHAGA 'NEW YORK, ASSIGNOR. TO R ALPH BAGGALEY, OF PITTSBURG, PENNSYLVANIA.

BLOWING-ENGINE.

SPECIFICATION forming part of Letters Patent No. 746,744, dated December 15, 1903.

Application filed March 5, 1903.

To all whom it may concern:

Be it known that I, FRANCIS M. RITES, a citizen of the United States, residing at Ithaca, in the county of Tompkins and State of New York, have invented certain new and useful Improvements in Blowing-Engines; and I do hereby declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the'art to which it appertains to make and use the same.

My invention relates to improvements in fluid-compressors, and particularly to that class of air-compressors known as blowingengines.

My invention consists in the novel construction and arrangement of the parts of the engine.

The objects of my invention are to render blowing-engines more compact and simple, to reduce the floor-space occupied and to reduce their cost, and to permit of high rotative speed. 1

. I will now proceed to describe my invention with reference to the accompanying drawings, in which one embodiment of my invention is illustrated, and will then point out the novel features in claims. v f

In the said drawings, Figure 1 shows a central vertical section of the engine on a plane at right angles to the crank-shaft. Fig. 2 shows a vertical section of the engine on a plane parallel to the crank-shaft and through the center thereof. Fig. 3 shows a horizon; tal section looking down on the line X X of Fig. 2.

Referring now to the said drawings, the engine there shown comprises a motor-cylinder 1 and a compression-cylinder 2, both cylinders being vertically arranged, the motor-cylinder being above the compression-cylinder. A steam-chest. 3 is formed in the casting of the motor-cylinder 1 and is-provided with a liner-bushing 4, within whichworks a pistonvalve 5, controlling the admission of steam to and its exhaust from the motor-cylinder 1 The exhaust from the cylinder passes into a chamber 6 formed therein and thence out The piston-valve 5 shown is of the type in which live steam is admitted to the central portion of the steamchest intermediate the heads or pistons of Serial No. 146,362. (No model.)

said valves, the outer edges of the pistonvalve being the exhaust edges thereof.

8, Fig. l, is the pipe through which live steam is admitted.

The lower portion of the motor-cylinder casting forms the upper head of the air-cylinder 2 and besides containing the exhaustchamber 6 is cored out to form air-passages 9 and 10. The compression-cylinder rests upon a pedestal 11, forming the lower head of said cylinder 2, and said pedestal is cored out for other air-passages 12 and 13. The pedestal 11 rests upon a hollow base-piece 14, constituting the crank-case of the engine. The piston 15 of the air-cylinder has as an integral part of it a hollow or trunk piston-rod 16, working within a guide-cylinder formed in the pedestal 11. The wrist-pin 17 is set as high in this trunk piston-rod as is possible without too great diameter of piston-rod in order tomake the height of the engine as small as possible, and for the same reason the connecting-rod 18 isas short as is consistent with good design.

Air-chambers 9 and 12 are connected by a passage 19, which constitutes the dischargepassage. Air-chambers l0, and 13 are connected by a similar passage 20, constituting the air-admission passage. The valves 21, 22, 23, and 24 are rotary double-ported valves of the familiar Corliss type.

Any suitable mechanism may be used for operating the valves. For operating the steam-valve I employ a fly-wheel governor of well-known type, mounted upon the crankshaft 25 of the engine and arranged-to adjust a shifting eccentric mounted upon a Weightarm 26. Motionjis transmitted from the eccentric to the valve through an eccentric-rod,

der, by employing a trunk piston-rod for the air-cylinder, and by locating the wrist-pin well up within this trunk piston-rod I am able to produce an engine which occupies very little floor-space, the vertical height of which in proportion to its power is very small, and the center of gravity of which is relatively low, so that the machine as a whole is solid and stable and is capable of relatively high rotative speed, which materially increases the efiiciency, as well as the capacity, of the engine.

What I claim is 1. In a fluid-compressor, the combination with a motor-cylinder and a compression-cylinder, both vertically arranged with the motor-cylinder above the compression-cylinder, bot-h cylinders closed at both ends, of pistons for said cylinders connected together, the piston of the compression-cylinder having a trunk piston-rod, valves controlling the admission to and exhaust of motive fluid from both ends of the motor-cylinder, and the admission to, and discharge of fluid from, both ends of the compression-cylinder, a crankshaft, and a connecting-rod having its wristpin located within the trunk piston-rod.

2. In a fluid-compressor, the combination with motor and compression cylinders vertically arranged with the motor-cylinder above the compression-cylinder, and forming the upper head of said compression-cylinder and having in said head the admission and discharge valve chambers for the compression in said valve-chambers, of connected pistons for the motor and compression cylinders, the

compression-piston having a trunk pistonrod working within a guide-cylinder formed in said pedestal, a crank-shaft, and a connecting-rod having its wrist-pin located within said trunk piston-rod.

3. In a fluid-compressor, the combination with motor and compression cylinders vertically arranged with the motor-cylinder above the compression-cylinder, both heads of said compression-cylinder having formed therein admission and discharge valve chambers and passages leading thereto and therefrom, the motor-cylinderhaving a vertical valve-chamber, said motor cylinder valve -chamber in communication with an BXllfillSlJ-SPHCGfOIIIlGd. in the upper head of the compression-cylinder between the admission and exhaust passages thereof, of valves for said valve-chambers, a crank-shaft and a connecting-rod.

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

FRANCIS M. RITES.

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