US67527A - Matthias gabeibl - Google Patents

Description

Init-rit tstrs strnt @fitta MATTHIAS GABRIEL, OF N EVVARK, NEW JERSEY.

Letters Patent No. 67,527, :lated August 6, 1867.

IMPROVEMENT IN ROTARY STEAM ENGINES.

@tige Sdgrtule referrer tu in tigers @Titten patent mit making part nt tige same.

T0 ALL WHOM IT MAY CONCERN:

B'e it known that I, MATTHIAS GABRIEL, of Newark, in the county of Essex, and State of New Jersey, have invented certain new and useful Improvement-s in Rotary Engines; and I do hereby declare that the followinglis a full, clear, and exact description ot' the same, reference being had to the accompanying drawings, making a portion of this specification, in which Figure 1 is a vertical transverse section of a rotary engine constructed according to my invention.

Figure 2 is a side view of the same.

Similar letters of reference indicate corresponding parts in both figures.

This invention consists in the arrangement of two steam pipes or passages at opposite sides of the cylinder of u rotary engine, and in such relation with the rotating piston and the valve-chest of the same as to insure a very eiiicient action of the steam upon the said piston. The invention further consists in a novel means, whereby the valve may be properly operated with reference to the movement of the rotary piston. The invention further consists in two sliding abutments operated by a cam on the piston-shaft, and so arranged in relation with the hereinbeforementioned steam pipes orpassages that the pressure of the steam upon the piston is rendered nearly continuous.

To enable others to understand the nature and construction of my invention, Iwill proceed to describe it with reference to the drawings.

The cylinder ofthe engine is shown at A, and is supported by a suitable base, a. This cylinder is furnished at its top or upper side with a valvechest', t, in which is placed the slide-valve B, and which is furnished with an induction pipe, c. The eduction pipe or passage is shown at d, and of course communicates with the eductionchamber A* of the valve B. C and C* represent two steam pipes or passages, situated one at each side of the cylinder, with their upper ends communicating with the valve-chest b, and their lower ends placed nearly opposite each other and communicating with the interior of the cylinder A, as shown at 6*, in fig. 1. The central transverse shaft e has secured upon it the rotating piston D, which is of cylindrical form, and is furnished at one side with a radially projecting abutment, f, the edges of which,ibeing provided with packing of any suitable variety, are kept in close Contact with the inner surface of the cylinder A as the said abutment is carried around by the rotation of the piston. E and E* indicate two sliding abutments which are situated in a horizontal position at opposite sides of the cylinder A, one of the said sliding abutments being placed below the front b* of one of the steam pipes C 0*, and the other being located above the corresponding opening a* of the other steam pipe.' The'se sli'ling abutments E E* work in suitable guides formed at the sides of the cylinder, as indicated at g, andare furnished with rods or stems, L, which, passing out through stuffing-boxes z', have their outer extremities firmly attached by curved straps B* to the ends of a vibrating-bar, F, which is situated at one end of the cylinder A. The central part of this bar F is curved, as shown in iig. 2, so that its movements may not be interfered with by the outwardly extending portion o t the sha-ft e, and has attached to it at a. suitable distance' apart two friction-rollers 7c, and secured upon the end just mentioned of the shaft e, between the aforesaid friction-rollers lc is a cam, G, the straight portions a Z1 of the circumference of which act upon the friction-rollers k, to vibrate the bar F, to operate the sliding abutments E, and the semicircular portion a of the said circumference serving to hold the bar F, and consequently the aforesaidabutments E E, in a stationary position at intervals during the operation of the engine, as' hereinafter more fully explained. That end ofthe shaft e opposite to that at which the cam G is secured is furnished with an eccentric, shown in dotted outline at I, and which operates a connecting-1'od, m, the upper end of which is pivoted to an arm, n., formed upon a toothed sector, r, which gears into a racli, s, provided upon the outer end of the valve-stem u, which passing through a stuffing-hex, ci, has its inner end attached to the slide-valve B. The parts being in the position shown in the drawings, the pressure of steam admitted through the steam pipe C into the cylinder A, between the vsliding abutment Ei, and the ahutmentf of the piston D, upon the abutmentf, last mentioned, turns or partially rotates the piston, until the said abutmentfa-pproaches the part Z1* of thc steam pipe or passagev 0?, whereupon the cam Gr operates the bar F to move outward the sliding abutment Ei, and bring inward the other sliding abutment E, simultaneously with which the eccentric I operates the valve B to permit the steam to -pass inward through the pipe or passage (2*, into the space in the cylinder between the sliding abutment E and the abutin'entfof the piston; the pressure of such steam upon the abutmentfcausing the piston to complete the revolution, so that, by thus admitting steam to the cylinder alternately through the pipes or passages C 0*, the continued rotation of the piston lis seeuredthe exhaust steam in front of the abutmentf of the piston passing out through each of the aforesaid pipes C 0*, alternately with the innord pessage'of steam through the same. The sliding obutments E E* are held in the required stationery position while the steam is acting upon the abutmentfof the piston by the action of the semieirculzu part a of the circumference of the com upon the adjacent frietion-roller of the vibrating-bar. The said com noting upon the said rollers only by Ineens of the straight portionsoi` such circumference to vibrate or slide the bnr to move the sliding abntments E in and out, as hcreinbefore explained.

1What I olaim os my invention, and desire to secure by Letters Potent, isi l The sliding abutmcnts E E*, when connected by the yoke or bar F, and operated .simultaneously by the .com G on the axis of the rotating piston D,v substantially as and for the purpose set forth.

MATTHIAS GABRIEL.

Witnesses:

J. W. CooMB's, G. W. REED.

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