US591070A - binokley - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

G. S. BINOKLEY. VALVE MIEIGHANISM FOR ENGINES.

(No Model.) 2 Sheets-Shet 2. -G. S. BINGKLEY.

VALVE MECHANISM FOR ENGINES.

Patented Oct. 5,1897

I IINTTED STATES PATENT EEEcE.

GEORGE S. BINCKLEY, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO THE UNION IRON WORKS, OF SAME PLACE.

VALVE MECHANISM FOR ENGINES.

SFECIFICATION forming part of Letters Patent No. 591,070, dated October 5, 1897. Application filed January 2, 1897. Serial ll'o. 617.838. (N model.)

To all whom, it may concern:

Be it known that I, GEORGE S. BINcKLnY,

acitizen of the United States, residingat San engines known as the Corliss engine; and

it consists in the arrangement of parts and I details of construction, as will be hereinafter fully set forth in the drawings and described and pointed out in the specification.

In order fully to understand this invention, reference must'be had to the accompanying 2o sheet of drawings, wherein- Figure 1 is a side view in elevation showing the piston-cylinder, the position of the valves, and the connections for operating the said valves. Fig. 2 is a broken top plan view of the mechanism illustrated by Fig 1. Fig. 3 isan enlarged detail sectional view, partly broken away, showing the valve mechanism located at the inner end portion of the cylinder. Fig. 4 is an enlarged detail front view in elevation, partly broken away, of the valveoperating mechanism disclosed by Fig. 3, viewed in the direction of the arrow; and Fig.

5 is an enlarged detail side view inelevation of the valve-operating mechanism set forth in Fig. 3. v

In the drawings, the letter A'is. used to in dicate the piston-cylinder of the engine, and the letters B B are used to indicate the valvechests located at each end thereof, within 40 each of which valve-chests are arranged and work, respectively, the inlet-valve B and the exhaust-valve B which valves are preferably of the puppet type. The valve 13 works within a basket A, secured within the port- 4 5 openings1, formed through the lower wall and set at each end of the steam-inlet chamber 0, and controls the admission of steam from said I chamber through the port 1 into the piston- ,cylinder, while the outlet-valves B work Within the baskets A situated within the port-openings 2, formed through the upper wall and at each end of the steam-exhaust chamber 0, and said valve controls the flow of the exhaust from the piston-cylinder into the steam-exhaust chamber. The stem 1) of the inlet-valves extends upward through the stuffing-boxes I), while the stem 12 of the exhaust-valves extends downward through the stuffing-box N, Fig. 3. It must be remembered that an inlet-valve and an outlet-valve Co are located in each valve-chest and that each valve works in the same manner and is operated by the same mechanism. Consequently in the present application the description will be confined to the operation of the valve mechanism located at one endof the pistoncylinder, which description will suffice for the valve mechanism located at the opposite end of the cylinder.

To the cylinder A is attached the wristplate 3, from which plate upwardly and downwardly extend the connecting-rodsv 4 and 5 which rods, in accordance with the movement of the wrist-plate, operate the inlet and exhaust valves. The rods 4 are connected at their upper ends with the arm 6 of the rockshafts '7, which work in bearings of the forked standard 8, secured to the top of each valvechest. Each rock-shaft is provided with two projecting arms 9, through the outer end of which is carried the pin or bolt 10. This pin or bolt extends through a slot ct, cut in the yoke F, and being of less diameter than the Width of the'slot has free play therein. This yoke is connected at its lower end to the upper end of the inlet-valve stem 19, and it extends upward between the arms 9 and through the forked standardS. Being thus connected it is obvious that as the arms of the rockshaft 7 are thrown up or down by the movement of the wrist-plate 3 the yoke F, carrying the valve-stem Z), will be raised or lowered, as hereinafter described, in order to open or close the inletvalve. The rods 5 of the wrist-plate 3 connect at theirlower ends 5 to the arms 11, secured to the shaft 12, working in brackets 13, Figs. 1 and 3; This shaft carries the arm 14:, which when raised engages the under face of the tappet 15, secured to the valve-stem b and lifts the valvestem, so as to open the valve B The movement of the wrist-plate 3 is such as to cause the connecting-rods4 to raise theinlet-valves B while the exhaust-valve B is seated. To the wrist-plate 3 is connected one end of the rod 16, the opposite end of which is connected to the vertical fulcrumed lever 17, which lever is connected to the driy e mechanism of the engine through the medium of the connecting-rod 18.

The pin or bolt 10, connecting the arms 9 of the rock-shaft 7, carries the claw D, which claw has secured to its lower end the steel block cl, which block when the lower end of the claw is moved inwardmoves beneath and engages with the steel block d, secured to and carried by the vertical yoke F, secured to the upper end of the stem 7) of the inletvalves B To the rear of the claw D is fastened the depending tailpiece D. This tailpiece is connected by the spring n to a post n, Fig. 23, secured to the top of the valvechest, the resiliency of said spring being sufficient to hold the tailpiece D toward the post n, which maintains the lower end of the claw inward and holds the steel block (1 beneath the steel block (1 of the yoke F.

The tailpiece D is thrown inward, so as to release the claw D from engagement with the yoke F, by means of the roll 6, which is carried by an arm G, attached to the rockshaft G, working through the forked bracket or standard 8. To the opposite end of the rock-shaft G is secured the arm G which is connected to the lower end of the lever g by means of the connecting-rod g. The lever g is fastened to one end of the shaft 9 which shaft is carried by the arms 9 upwardly proj ecting from the rock-shaft g To this rockshaft is secured an arm h, and connection is made between this arm and the eccentric of the engine (not shown) by means of the eccentric-rod 7t. Connection is also made between the upper end of the lever g and an idler 71, loosely mounted upon the rock-shaft G in advance of the arm G by means of the rod g and connection is made between said idler and the valve mechanism of the chest B by means of the connecting-rod 7L3. This train of mechanism constitutes the cut-off mechanism for controlling the admissionvalves. Connection is also made between the governor mechanism of the engine (not shown) by means of the vertical rod 71, the lower end of which rod is attached to an arm h secured to the shaft g The vertical movement of the rod 71 throws or adjusts the mechanism just describedin accordance with the load under which the engine is working.

By the foregoing it will be readily understood that as the claw is raised by the movement of the arms or levers 9 through the medium of the described mechanism, with its steel block in engagement with the block of the vertically-movable yoke, the said yoke will be carried therewith in order to lift the admission-valves. As the arm G is thrown inward by the movement of the described cut-off mechanism the roll 6 is caused to bear I against the tailpiece of the claw and move the same inward, thus forcing the claw to turn upon its fulcrumed point and throw its lower end or steel block carried thereby out of engagement with the yoke, so as to permit the said yoke to move downward in order to seat the admissionwalve.

It will be understood that the connection between each valve mechanism is so arranged that as one valve is opened the opposite valve is closed or seated. Each yoke for raising the admission or inlet valves extends through the sleeve or guide H, arranged on top of the forked bracket or standard 8, and to the upper end of the said yoke is secured the cap H which fits upon the sleeve or guide H, so as to form an air-cushion for seating the admission or inlet valves without serious impact or jar.

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

1. The combination with the inlet-valves, of the yoke connected to the stem of said valve, the claw carrying a block which engages with a block secured to the valve-yoke, mechanism for raising the claw in order to lift the yoke and inlet-valve, a tail connected to the yoke, and of mechanism for controlling the movement of the tail of the claw so as to move the same in or out of engagement with the valve-yoke.

2. The combination with the inlet-valve, of the yoke connected to the stem of said valve, the claw for engaging with said yoke in order to lift the same, mechanism for imparting vertical movement to the claw, spring-actw ated tailpiece carried by said claw, a reciprocating arm for throwing the tailpiece inward to release the claw from engagement with the yoke, and of the eccentric cut-off mechanism for controlling the movement of the said arm.

3. The combination with the inlet-valves, of the yoke connected to the "alve-stem thereof, a claw for engaging with said yoke, mechanism for imparting vertical movement to said claw, a spring-actuated tailpiece carried by the claw, a reciprocating arm for throwing the tailpiece to release the claw from engagement with the yoke, the eccentric cut-oflf mechanism for controlling the movement of the reciprocating arm, and of the connection between the governor and the reciprocating arm for throwing the claw.

In testimony whereof I affiX my signature, in presence of two witnesses, this 26th day of December, 1896.

GEORGE S. BINCKLEY.

WVitnesses:

N. A. ACKER, LEE D. CRAre.

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