US52677A

US52677A - Improvement in tube-gear for oscillating engines

Info

Publication number: US52677A
Authority: US
Publication date: 1866-02-20
Anticipated expiration: 1883-02-20

Description

rre STATES TATnNfr OFFICE.

HENRY T. CARTER, OF PORTLAND, MAINE.

IMPROVEMENT IN TUBE-GEAR FOR OSCILLATING ENGINES.

Specification forming part of Letters Patent N0. 52,677, dated February 20, 1866.

To all whom t may concern:

Be it known that I, HENRY T. CARTER, of Portland, in the county of Cumberland and the State of Maine, have invented a new and Improved Valve-Gear for Oscillating Steam Engines; and I do hereby declare that the following isa full, clear, and exact description thereof, which will enable others skilled in the art to lnake and use the saine, reference being had to the accompanying drawings, forniing a part of this speciiication, in which- Figure 1 is a sectional end elevation of this invention, Fig. 2, a longitudinal eleva-tion of the saine, and Fig. 3 an isolated view of the operating-link.

Similar letters of reference indicate like parts. 5

This invention consists in the arrangement of a link iii combination with a valve-stem of an oscillating steam-engine in such a manner that by-tlie combined effect of this link and the oscillation of the cylinder the requisite re'- ciprocating niotion is imparted to the valvestem and the valve is moved at proper intervals.

A represents an ordinary stearnlcylinder, which is linng npoii truniiioiis B B', which have their bearings iii suitable standards O C, which are secured to a bed-plate, as coniinoii, or are otherwise arranged in such amaniicr as to allow the cylinder to oscillate freely in either direction. The piston-rod D connects directly to a wrist-pin of the ldouble crank E, which revolves the shaft F and balance-Wheel G in the usual manner for oscillating` engines.

Attached to the cylinder and in line with the trunnions B B is the valve-chest H and the stem I, operating the valve. The stem I extends through a lip or guide on the cylinder-Bange, asis clearly shown in the drawings. By this arrangement the valve-stem is guided in its up-and-down motion, thuspreventing its bending or binding` when the engine is in motion.

Attached to the valve-stein I is a boX, J,

which slides in a link, K, as is shown particularly in Fig. l. The curve of this link is on a radius -of the distance from the center ofthe link to the center of the steam triinnion or oscillation. Rigidly attached to this lilik is a trnnnion or rocking shaft, which rocks in snitable bearings in the frame. Upon the end of this shaft is affixed a lever, L, which slideson a guide, N.

When the link is on the center or ata right angle with the valve-stein, although tlie cylinder may oscillate, the valve will not move upon its seat. When the link is placed ecceiitric with the center of oscillation, by tipping it by means of the lever L the oscillation ot' the cylinder and the combined effect of the link will cause the valve to move at proper intervals of the stroke. If the lilik be tipped to the right the balance-wheel will revolve in a like direction, but if the link be tipped in an opposite direction the engine will be reversed.

This valve-gear may be applied to oscillating engines of any desired description, whether the cylinder oscillates on a' horizontal or vertical axis.

The advantages of this invention are the simplicity, durability, and cheapness ofthe engine.

The. Letters Patent granted to .m0, No 48,904, and dated the 25th of July, 1865, einbraced this principle, but specified an arm in combination with the link.

I claim as new and desire to secure by Letters Patentl. The arrangement of the slotted .link K, the valve-stein I, and the oscillating cylinder A, all as and for the purposes specified.

2. The 'manner of reversing an oscillating engine by means of the slotted link K, the valve-stein I, the lever L, and the oscillating cylinder A, as specified.

HENRY T. CARTER.

Witnesses:

WILLIAM H. CLIFFORD, J os. GnRRIsH.