US98449A

US98449A - Improvement in steam-engines

Info

Publication number: US98449A
Authority: US
Publication date: 1869-12-28
Anticipated expiration: 1886-12-28

Description

. NITED STATES PATENT OFFICE.

CHARLES C. WAGGONER, OF ST. JOHNS, OHIO.

IMPROVEMENT IN STEAM-ENGINES.

Specication forming part of Letters lPatent No. 98,449, dated December 28, 1869.

To all whom fit may concern.- d

Be it known that I, (l. C, WAGG'ONER, of St. J ohns, in the county of Auglaize and State of Ohio, have invented a new and useful Improvement in Steam-Engines 5 and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, makin g a part of the specication, in Which- Figurc l is a side elevation, Fig. 2 is a longitudinal vertical section, Fig. 3 is an end elevation, and Fig. 4 is a transverse vertical section, of cylinder, showing packing-ring and arrangements for tightening the same.

This invention consists, first, in a novel and peculiar mechanism for shifting the valves, whereby this operation may be performed in one-sixteenth of the time ot' the stroke; second, in connecting the valve-levers by a right and left hand screw, so as to increase or decrease the amount of steam entering the cylinders at the will of the engine; third, in a novel and peculiar mechanism for tightening the packing-rings about the piston.

In the drawings, B. is the engine-bed, upon which rest the two horizontal cylinders I I, the pistons L L of which are operated by one cross-head, N, carrying two pitmen, o o, the ends of the cross-head playing in guide I), one on each side of the bed, and the two pitmen being connected with two cranks, one on each end of the flywheel shaft a.

AE is an arrow-headed arm, projecting from said shaft a, theinclined head of which comes in contact, as the arm moves downward during the revolution of the shaft, with frictionwheels F, and, as the arm moves upward, with a friction-wheel, F', saidwheels being placed in the ends of a horizontal slide, D, movi-ng in the bed R, said slide having a pin, d, projecting from it and passing through a slot made lengthwise of the lever B, which lever is jointed at its lower end below the point where the pin d passes through it to the bed It. Hence the movements of the slide D impart a vibrating motion to the lever B, which it communicates, by means of the connectingrod H, to the .valve-lever a', projecting from the valve-stem A, extendingoutside the steamchest S, there being one valve at each end of the latter, the levers a of which are connected by rods G G, having a right and left screw connection, by means ot' which the said rod G may be lengthened or shortened at pleasure, in order to increase or diminish the openings of the steam-ports. The valve-stems A, having a vibrating motion imparted, -as above specied, communicate the same to the crescent-shaped valves A', and thus alternately open and close the ports opening out of the live-steam chamber J. Each valve A alternately admits steam from the chamber J to the cylinderl, and out of the cylinder I into the exhaust-steam chamber S.

T T are oil-cups communicating with the valves by tubes t.

Fig. 4 shows the manner of tightening the piston-packing when loose, wherein c is the split packing-ring, and c elbow-springs for tightening it, the elbow-springs being pivoted upon pins projecting horizontally from the piston. Y

d is the rotatable stress-head, as I call it, placed loosely upon the piston-rod, having pins d in its outer side andnear its rim, which, on turning the stress-head, force up the elbowsprings against the packing. The stress-head is held in the proper position by the followerscrew e, and is rotated by means of a lever inserted in the holes in its periphery.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent,is

l. The arrow-headed arm E, slide D, lever B, and valve-levers a', combined and arranged substantially as set forth.

2.v The rod G, having a right and left screw connection, combined with the valve-levers a', as and for the purpose described.y

3. The rotatable stress-h ead d, provided with pins d', in combination with follower-screw e, elbow-springs c', and packing-ring c, substantially as specified.

CHARLES C. WAGGONER.

Witnesses:

' WILLIAM BUSH,

G. M. ROGERS, LEWIS P. BAYLIFF.