US80025A - Samuel stanton - Google Patents

Description

SAMUELA STANTON, eF'NEwBURe, Newr YORK..

Letters Patent No. 80,025, elated July I4, 1868.

IMPROVEMENT IllV CUT-FF-VALVE GEA.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, SAMUEL STANTON, -of Newburg, in the county of Orange, and State of New York, have' invented a new and improved Self-Acting VariableCut-Oil; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable those skilled in the art to inake and use the same, reference being had to the accompanying drawings, forming part of this specication.

This invention relates to a new and improved application of a governor to the slide-valves ofa steam-engine, whereby amore equable motion-than usual is obtained, and the steam admitted into the cylinder at all times, when the ports are fully open, whereby the wire-drawing ofthe steam, occasioned by the latter passing through a partially-opened port, is avoided, and the steam within the cylinder allowed to' work under a. pressure equal t0, that which it has in the boiler. I

In the accompanyiugsheet of'drawings- Figure lis a plan or top view of-nny invention.

Figure 2, a side sectional view of'tlxesame, taken in the line :e m, tig. l.,

Figure 5,4a detached view of two levers pertaining to the same.

Similar letters of reference indicate corresponding parts. i Y

A represents the/steam-cylinder oi' an engine-and B the steam-chest connected therewith, and provided with twoslide-valves, the rods, C C, of. which Vare shown. l

D is the erankeshaft, driven from `the piston-roll of the steam-cylinderas usual, and E a, flywheel., rmly secured on shaft D; F'is a' pulley orwheel, also secured on shaft D; and G is a sleeve, placed loosely on said shaft, and fitting loosely` overone end ofthe hub-a ofthe wheel F. One end ofthislsleeve has two projections,

Y b b, extending from itl-at opposite points, and the opposite end has a circular flange, c, which abats against one side of thc wheel F, and this flange e is connected by screws d to an lannular` disk or ring, e, which abnts against the oppbsite side ot'iwhcel F, and is fitted loosely on the hub ot' F. j

By this arrangement., the sleeve G, flange e, andvv ring e are-allowed to turn independently ot' the shaft D and wheel F, the screws d, which connect the Hang@ e and ring;` e, passing through oblong concentric carved slotsf, in wheel I, as shown clearlyvhy the dotted lines in fig. 2. l

The wheel F has a'trlm which projects4 beyond bhth sides of the wheel F, and to the inner side of the rim there are projections g, 'eme at each side ofthe body orlmain portion ofthe wheel, and at the pcripheries ofthe flange c and ring e there are projections g', one to each, (see fig, 2.)

H II are two bent levers, their axes, z', being at their angles, (see gs. 2 and The outer ends of the lower arms-of these levers have pins, j, projecting laterally from them, and these pins extend within the rim of the wheel It. To the upper ends of the levers II I-I the valve-rods VC C are attached.

The ily-wheel E has a governor connected with it. his governor' is composed of' two bars, I I, the outer ends of which are pivoted to the inner side of the rim o? the ily-wheel, as shown at c c. '.'Lhese bars I I havev springs I J, which are attached to theinner side ol' the rim of the ily-wheel, bearing against their inner ends, as shown clearly in fig'. 2. Those bars I I are connected by rods K K to the projections b Il, on one end of the slceveG, as shown clearlyvin fig. 2.:

When the engine-is at work, the ily-wheel Iilrnovcsv in the direction indicated by the arrow, fig. 2, and the arms I I of the governor will, when the ily-wheel E is rotated beyond a certain speed, be thrown outward under the centrifugalforce. generatedby the rotation of the wheel, and the sleeve Gr turned, and consequently the flange c and ring e, andthe projections g" of the lange and ring brought nearer to the projections g of the wheel F. V i

The projections g g operate the levers H H, and consequently the slide-valves, the projections g of F opening the valves, and the projections g o't c and 'e closing them; consequently it will be-seen that when the engine is running at its proper speed, and the speed of the rotation of the fly-wheel E l's not sullicient to throw out the arms I I ofthe governor, the valves will be opened and closed at the proper intervals to supply the cylinder Aavith the necessary steam; but when the vshaft D increases in speed by having work thrown off from it, or` from other causes, the bars I will be thrown out under the increased speed of the fly-wheel E, and the iange c and ring e turned so that theA projections g will be brought nearer theprojeetions g, and the valves consequently closed quicker, and the steaiucutioffreni the cylinder earlier inl't'he stroke 'of the piston, and the engine broughtl down to a proper speed. y The valves are always moved the same distance inorder that the ports may be fully `opened in every case, the regulating or governing of the amount of steam into the. cylinder being eifectedby theelosing ofthe valves more `or less early in the stroke of the piston.

By this arrangement, a very simple., economical, and compact means is obtained for operating the slidevalves, theapplieation of the governor to the valve being very direct, all gearing and belting being dispensed with.

I claimas nemend desire to secure by Letters Patent- .1.. The'combination of the bent levers H H, rollers upon the pins and the cams gg', for opening and closing the valves, as herein shown and described.

. 2. The sleeve G, wheel F, ange c, and ring e, in connection with the governor and the valve-levers H', all arranged to operate in the manner substantially as and lforP the purpose set forth.

The above specification of my invention signed by me, this 9th day of October, 1867.

SAMUEL STANTON. Witnesses i WM. F. McNArzIAim,- ALEX. F. ROBERTS.

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