US316631A

US316631A - Geoege lenhardt

Info

Publication number: US316631A
Authority: US
Publication date: 1885-04-28
Anticipated expiration: 1902-04-28

Description

(No Model.)

G. LENHARDT.

PUMP

No. 316,631. Patented Apr. 28, 1885.

UNITED raras artnr Ormes.

GEORGE LENHARDT, OF DETROIT, MICHIGAN, ASSIGNOR OF FIVE-EIGHTHS 'TO SAMUEL G. KINNEY AND ALBERT E. PEPPERS, OF SAME PLACE.

WIP.

SPECIFICATION forming part of Letters Patent No. 316,631, dated April 28, 1885.

Application led March 12. 1884. (No modell) To all whom it may concern:4

Beit known that I, GEORGE LENHARDT, of Detroit, in the county of Wayne and State of Michigan, have invented new and useful Improvements in Pumps; and I hereby declare Ynon 0f Fig. 1. nig. 3 is a section on therme x .r in Fig. 2. Fig. 4 is a cross-section on the line y y in Fig. 2.

In the accompanying drawings,which form a part of this specification, Arepreseuts a suitable bed which supports my improved pump. B isa pump-cylinder provided witha hub, O, the interior bore of which is conical to fit the conical portion a of the hollow trunnion D, which is provided with a central division-wall, b, in the lower end of the cylinder B, and through the hub thereof are ports c and d, arranged with relation to each other as shown in Fig. 4. Similar ports, e and f, are formed, as shown in Fig. 3, in the conical portion of the trunnion, one on each side of the divisionwall b, with their major or longest diameter in line with the bore of the trunnion. The two chambers of the hollow trunnion, being provided with means for coupling, form the eduction and induction ports.

E is a pistou, which may be made in any of the known ways to tightly t the cylinder B, in which it reeiprocates.v The upper end of this piston or piston-rod is connected with a wrist-pin, F, secured to the crank G upon the shaft H, which is supported by the standard I, and is driven by means ofthe crank-wheel J. lVhenthe cylinder stands in a vertical position, the ports c d stand with relation to the ports e and f as shown in Figs. 3 and 4E,

valve, so that there is no communication between the interior of the cylinder and the induction and eduction ports. Now, by giving a rotary motion to the wheel J a reciprocating which is communicated to the cylinder, causing the latter to oscillate upon its trunnion, and this oscillation gradually brings the four small ports c d e f into apposition gradually, so

the stroke these small ports are gradually opened or placed in apposition in like ratio, and in the other half of the stroke their position is gradually changed in the opposite dicrank-wheel these small ports are fully opened and fully closed. It will readily be seen that by means of this construction there are no valves employed, so that the pump may be is desired. It will also readily be seen that when the crank-wheel is turned to the right the induction is from one side of the machine and the eduction from the other, and a change verses the operation of these induction and eduction ports. It will also be noticed that the trunnion is conical, and that the hub of the cylinder .is correspondingly bored and sleeved thereon with one end of the trunnion screwed through the standard I, while the other end projects through the hub of the cylinder and is held in place by means of the nut d,by means of which the hub can be adjusted or forced onto the trunnion as it becomes worn.

I amaware of the patents to Velsh, No. 184,115 and Reissue No. 4,882, and. make no claim to anything shown therein. Nor do I claim, broadly, a hollow trunnion having a of said diaphragm, as that feature is shown in my Patent No. 298,866. My present arrangel the trunnion D acting in this case as a cut-off 5o and oscillating motion is given to the piston,

that with the ingress of the speed on one half rection, so that in each full revolution of the used for almost any purposes for which a pump of direction of the crank-wheel to the left retransverse diaphragm and aport on each side 9o which is provided with a conically-bored huh,-

which has ports c d formed therein upon opposite sides of a central cross-line of the cylinder, and upon opposite sides of a plane passed through its axial line of oscillation, in combination with a hollow trunnion, conical upon a portion of its surface to engage with the conical bore of the hub, and in which there is a central cross-division Wall,with the ports ef, one on each side of the Wall, each having its major diameter in line with the bore ofthe trunnion, and arranged on either side of said plane diagonally opposite to the ports c d,sub stantially as shown,and for the purposes specified.

2. The combination, in an oscillating pump, of the cylinder B, provided with a hub, C, standard I, hollow trunnion D,having one end screwed into said standard and the other screwstructed, arranged, and operating substan- 25 tially as and for the purposes described.

GEO. LENHARDT. Vitnesses:

H. S. SPRAGUE, E. J. SCULLY.