US63984A - bates - Google Patents

Description

E. M. BATES, OF EAST ROCHESTER, OHIO, ASSIGNOR 4TO HIMSELF AND J, H. AND G. W. VSANOR, OF HANOVEHTON, OHIO. 'Lafmpaemlva@essermi/@riz 222,186?.

@La cighuic aferra .tu iii time. tittas intnit :mt mating part uf tige smite.

'.l'O .ALL WIIOM I'I MAY CONCERN:

Be it known thatl I, E. M. BATES, of East Rochester, in the county of Columbiana, and 'State of Ohio, have invented certain new and useful Improvements in Steam Engines; and I do hereby declare that the following is a full and complete description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification. in which- Figure 1 is a front view of thecut-oif.

Figureg is a side view of thesame.

Like letters of reference refer to like parts in the views.

This apparatus consists of the yrectangular frame A, fig. 1, the inner edges of which are rabbeted ont, thusleaving a tongue or guide, B, on thc inner side. C is a cross-head, fitted to and made to slide upward and downward upon the tongue or guide referred to. liroin this cross-head projects upwards the shaft I), sliding through the cross-tie E, and by which it is guided and retained in a vertical position. This shaft is provided with an adjusting screw, F, by the means of which it and the cross-head are screwed upward and downward by the handwheel G, for a purpose hereafter shown. I is a stay supporting the screw and wheel. To the lower side of the cross-head is secured the stay J, between the arms of which is pivoted the rectangular frame K. To this frame is fitted th'e cross-head L, which slides upward and downward within the frame, as and forthe purpose hereafter described. To this cross-head L is connected the rod M, iig. 2, which is secured in a horizontal position by thel stay N, and through which it slides reciprocally. O is the eccentric-rod, and is pivoted to the lower end of the rectangular' frame K,and by which it is operated :1s follows: The apparatus is fixed to the engine at some con. venient point, and connected to the eccentric by the rod O, and by which thc frame K is madeto oseillate. The

rod M is connected to the cut-off valve, and operates the same conjointly with the reciprocating action of the frame and rod K 0. It will be obvious that the reciprocating action of the valve will be in proportion to thc .vibratory action of the framcto which it is connected, or rather the distance that the cross-head. L may be from the centre of oscillation. Now if the head and rod operating the valve be near the centre, the stroke of the valve will be correspondingly lessened, and thus the amount of steam cnt oif will be greater than if the head were` more distant from that point. By this it willbe evident that any amount of steam may be cut off by simply changing the distance, more or leas, of the cross-head from the centre of vibration, and which is done by screwing the frame K toward or from the'cross-head as the case may be, by means of the screwv referred to, which is in eifect the same as moving the head for that purpose, the head and rod M being secured in one position in order to adapt it to the condition ofthe valve by means of the stay N above described.

'lhe advantage resulting from the use of this apparatus is the convenience in its application, for it is not necessary to stop the enginerin order to regulate the stroke of the valve for cutting off the steam, as it can be done while thc engine isrunning as well as when at rest, by operating the screw in the manner above described, which in no way interferes with the general movement of the apparatus and engine. It can be graded to the utmost nicety, so as to' cut oi' at any point, without interfering with its regular movements, and can, if so desired, be used to cut the steam entirely off, and let it on, instead of the usual stop-valve. It is inexpensive and simple in its structure, and easily adapted to all kinds of engines using a eut-off.

What I claim as my improvement, and desire to secure by Letters Patent, is

l. The screw I", shaft D,crosshead C, and stay J', as arranged i/n combination with the frame A, for thc Vpurpose and inthe manner set forth. l v

2. The frame K, cross-hcads L and C, when arranged and operated conjointly by the eccentric-rod-O, valverod'M, and adjusting screw F, for the purpose and in the manner as substantially described.

i E. M. BATES.

Witnesses:

W. H. Bonnindn, J. HOLMES.

Images