US728807A - Engine and power-transmitting means therefor. - Google Patents

Description

PATBNTED MAY 19, 1903.

v P. MURRAY. ENGINE AND POWER TRANSMITTING MEANS THEREFOR.

APPLICATION FILED 00T.17. 1901.

3 SHEETS-SHEET 1.

N0 MODEL.

INVENTOR:

WITNESSES fiewem J I/mr ATTORNEY5.

No. 728,807. PATENTED MAY 19,1903.

P. MURRAY. ENGINE AND POWER TRANSMITTING MEANS THEREFOR.

APPLIOATIONIILED 001217. I901v a SHEETS-SHEET 2.

No MODEL.

Efimy. WITNESSES: INVENTOR @12 fiat/mm m BY PATENTED MAY 19, 1903.

P. MURRAY. ENGINE AND POWER TRANSMITTING MEANS HEREFOR.

APPLIOATION FILED OCT. 17, 1901.

3 SHEETS-SHEET 3- N0 MODEL.

WITNESSES:

INVENTOR: I u mmfim BY p M ATTORNEYS.

MM LW n4: NORBIS PUERS cu. vHoro-u ruo, wAsxmmou. o. c.

UNITED STATES Fatented May 19, 1903.-

PATENT OFFICE.

PETER MURRAY, OF JERSEY CITY, NEW JERSEY, ASSIGNOR OF ONE-HALF TO AGNES L. AITCHESON AND JOHN LEAOH, OF JERSEY CITY, NEW JERSEY.

ENGINE AND POWER-TRANSMITTING MEANS THEREFOR.

SPECIFICATION forming part of Letters Patent No. 728,807, dated May 19, 1903. Application filed dctober 17, 1901. Serial No. 78,934. (Nomodel) To all whom it may concern.-

Be it known that I, PETER MURRAY, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Engines and Power- Transmitting Means Therefor; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanyingdrawings, and to characters of reference marked thereon, which form a part of this specification.

is The objects of this invention are to secure a transmission of rotary movement in opposite directions with greater uniformity and positiveness of movement and simplicity of construction and when applied to a pump in an explosive=engine to provide means for more efiectively controlling the supply of hydrocarbon fuel to the explosion-chamber of such engine and to secure other advantages and results, some of which may be referred to hereinafter in connection with the description of the working parts.

The invention consists in the improved engine and power-transmitting means therefor and in the arrangements and combinations of parts of the same, all substantially as will be hereinafter set forth, and finally embraced in the clauses of the claim.

Referring to the accompanying drawings, in which like characters of reference indicate 3 5 corresponding parts in each of the several figures, Figure 1 is a rear elevation of an engine to which my improved power-transmitting means has been applied. Fig. 2 is a plan of the upper portion of the same, on an enlarged 40 scale. Fig. 3 is a detail side view of a bracket and parts supported thereon, showing certain of the power-transmitting means more fully,

the view being taken in the direction of the arrow on line m, Fig. 4. Fig. 4 is a section 5 taken on line 1 of Fig. 3, and Fig. 5 is a detail view of a certain rotary cam forming a part of the power-transmitting means.

In said drawings, a indicates a bed or frame upon which the operating parts of the engine have their bearings, said frame being adapted to be seated in the hull of a boat or to be the bracket 11 of the cylinder 0.

otherwise stationed or arranged. Said frame or bed is preferably cast integral with a cylinder 0, containing a piston and means for igniting the explosive mixture by which said piston is driven, said piston and internal igniting means not being shown. Also within said cylinder is arranged an atomizer (not shown) by which the hydrocarbon fluid, pref- I erably in liquid form and preferably in the specific forms of gasolene and kerosene-oil,

is mixed with air, the liquid being evaporated or rendered vaporous or gaseous with facility and thoroughness by said vaporizer. To supply the vaporizer with the said hydrocarbon, I employa pump it and cooperating regulating means, which are driven by the powertransmitting means hereinafter described, in which the present invention particularly inheres.

The hydrocarbon fuel, preferably gasolen at the initial stages of operation and kerosene-oil after the engine is fairlyin operation, is fed from suitable tanks (not shown) to the pump 70, indirectly. operated by the grooved cam t, which cam also cooperates with other parts to open the exhaust-valve u. Said cam t is arranged on a shaft 12, having hearings on Said shaft has a crank wheel or arm w at one end, said 8c wheel or arm being operated by a lever 3, fulcrumed at 4 upon a slide 5, arranged in a vertical slideway 50, formed on or attached to the cylinder 0, said lever 3 at its lower end being attached to an eccentric-strap 6 on an eccentric 7, fixed to the main driving-shaft 8 and rotating therewith.

At its upper end the lever 3 is in immediate connection with the crank-pin 9 of a dovetailed slide 10, arranged in acorrespondingly- 9o dovetailed transverse groove in the face of the crank wheel or arm to, whereby as the lever 3 oscillates on its fulcrum and also has a limited vertical or longitudinal reciprocating movement under the influence of the ec- 5 centric 7 said slide 10 will permit of such movements and yet acting with the lever 3 will transmit rotary movement to the crank Wheel or arm w in a direction opposite that of the movement of the shaft 8. The dove- 10o tailed slide 10 compensates for the expansion and contraction of the cylinder under varying degrees of heat due to the combustion of gases, &c., therein. This rotary movement of the crank Wheel or arm to is in turn transmitted to the shaft 2;, arranged in suitable bearings 11' of the bracket '0 secured to the cylinder.

The cam 75 (shown clearly in Figs. 3, 4, 5) is provided with a cam-groove t, which crosses its own track, as indicated more clearly in Figs. 3 and 5, so as to efiect back and forth movements of shuttles 11 in a direction parallel with the axis of the cam t. I prefer to place two of such shuttles in said groove i, disposing them on opposite sides of the cam, so that said shuttles 11 11 move reciprocally in opposite directions. Said shuttles are carried by arms or levers 15 16, one of Which is loosely pivoted on a shaft 17, arranged on the bracket 11 which holds the cam-shaft o in position. The said loose arm 15 is held in position away from the arm or lever 16 by an interposed sleeve 18. Said arm or lever 15 is pivotally connected, as shown in Figs. 1, 4, to a fuel-feed-pump operating-rod 19, giving to said rod 19 alongitudinal reciprocating movement. Said rod 19 is provided with an arm 22, which .in turn engages the piston-rod 23 of the hydrocarbon-supply pump 70 and opcrates said pump to effect a regular supply of fuel in any suitable manner.

By means of the grooved cam and the lever-arms 15 16, operated thereby, Isecu-re by simple and positively-effective means a simultaneous opening of the exhaust-valve of the engine and a charging action of the pump, whereby the atomizer receives the charge positively in proper time to secure subsequently a vaporization of the charge and a mixture of the atomized hydrocarbon with air preliminary to the mixture being drawn into the explosion-chamber of the engine.

I prefer to and in practice I employ the reciprocating slide 5, upon which the lever. 3 is fulcrumed, as a motor for a rod of a pump, (not shown,) by means of which a cooling liquid may be forced into a water-jacket of the cylinder 0.

Having thus described the invention, what I claim as new is 1. The improved power-transmitting device, comprising a suitable bed or frame, a power-shaft carrying an eccentric, a leveroscillated by said eccentric, a movable fulcrum for said lever, and a shaft rotated by said lever, said shaft having a grooved wheel or arm, and a slide working in the groove of said carrying an eccentric, a lever having an eccentric-strap arranged on said eccentric, a sliding fulcrum for said lever, and a rotary shaft having a crankpin loosely carried thereon with which the lever is connected at the end thereof opposite that having the strap, substantially as set forth.

3. The improved power-transmitting device, comprising abed or frame, a power-shaft carrying an eccentric, a lever having an eccentric-strap arranged on said eccentric, a movable fulcrum for the lever and a shaft rotated by said lever, said shaft having a grooved wheel or arm and a slide arranged across the axis of said shaft in said groove, substantially as set forth.

4:. In an engine, the power-transmittingdevice adapted to operate two distinct portions of said engine simultaneously comprising a suitable frame or bed, a power-shaft having means for oscillating a lever, said lever fulcrumed on a sliding fulcrum, and a shaft having a cam and grooved wheel or arm, the latter having a slide provided with a crank-pin for the lever, and the cam having a crossing cam-groovein which the independently-operable parts have their connections, substantially as set forth.

5. In an engine, the power-transmitting means comprising a bed or frame, a powershaft having an eccentric, a lever having an eccentric-strap on said eccentric, a slide disposed intermediate of the length of the lever and having a fulcrumal pin for the lever, the slide having the crank-pin 9, the grooved wheel arranged upon the end of a shaft and carrying said slide, said shaft having a grooved cam and levers supported upon a suitable bracket and having shoes or shuttles in the said grooves and operatingindependent parts of said engine, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 2 tth day of September, 1901.

PETER MURRAY. Witnesses:

CHARLES H. PELL, C. B. PITNEY.

Images