US881310A - Engine. - Google Patents

Description

, PATENT-ED- MAR. 10, 1908; W; A. EDWARDS, 0. B. ELLIS & 1). P. CORNELL. ENGINE.

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N o.=881,310. v PAVTENTED MAR. 10, 1908 W. A. EDWARDS, E. ELLIS & D. F. CORNELL.

' ENGINE.

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1101881310. PATENTED MAR. 10, 1908r I W. A. EDWARDS, G: B. ELLIS & D. F. CORNELL.

ENGINEL.

' APPLICATION FILED FEB. 23. 1907.

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lM/ZZDHE I \X/ITNESSEE jmawm No. 881,310. PATENTE D MAR. 10,1908.

W. A. EDWARDS, G. E. ELLIS & D. F. CORNELL.

ENGINE. APPLICATION FILED FEB. 23, 1907 4 SEBETSSHEET 4.

' P 1M2: um 5 WITNESSES Wand/ fdawmmw )7 Z hm'w xi, zillw WILLIAM A. EDwARDs, oHARLEs E. ELLIs, AND DAVID F. CORNELL, or ROCHESTER, MIN- NESOTA, AssIeNoRs 'ro EDwARDs, ELLIS & CORNELL COMPANY, OF ROCHESTER.

' MINNESOTA, A CORPORATION.

ENGINE.

Speeificationof Letters Patent.

Patented March 10, 1908.

Application filed February 23, 1907. Serial N 0. 368,962.

To all whom it may concern:

'Be itknown that we, WILLIAM A. ED- WARDS, CHARLES E: ELLIS, and DAVID F. CORNELL, of Rochester, in the count of Olmsted and State of Minnesota, have jointly invented certain new and useful Improve-- ments in Engines, of which the following is a specification.

Our invention relates to certain new and useful improvements in engines, and the object of our improvements is to construct an engine which will have greater efficiency, be easier running and lighter in construction.

With this object in view, our invention consists in an engine in which the piston and cylinder reciprocate, and in which the piston and cylinder always remain in line during their cycle of movement.

Our invention also consists in certain constructions, arrangements and combinations of parts, one 'form of which will be first described in connection with the accompanying drawings, and then the invention particularly pointed out in the claims.

For the sake of illustration we will describe our invention in connection with an explosive engine. It is to be understood, however that our invention, in its broadest scope is not limited to such use, but is equally well adapted for engines, using heat, air, steam or other fluid as the source 01 power.

Referring to the drawings wherein We show one embodiment of our invent-ion and wherein the same part is designated by the same referenceeharacter wherever it occurs, Figure 1 is a sine elevation 01' a gas engine constructed in accordance with our invention. Fig. 2 is a View similar to Fig. 1, showing however the cylinder, piston and valve mechanism in central, longitudinal section. F ig. 3 is a side elevation, looking at right angles to Fig. 1, parts being omitted to more clearly show the construction. Fig. 4 is a top plan view of the cylinder head. Fig. 5 is a section taken on line 5, 5 of Fig. 2, the arts outside the cylinder'head being'omitted Fi 6 is a section taker-1'on line6,-6 of Fig. 2, lodlring in the direction of the arrow, and Fig. 7 is a section taken on line 7, 7 of Fig. 3, looking in the direction of the arrow. tion looking at right angles to Fig. 2. Fig. 9 is a detail perspective view of the upper portion of Fig. '8; showing the parts substantially Fig. 8 is a side elevamidway of the stroke of the engine, and'Fig.

10 is a view similar to Fig. 9, showing however'the parts slightly more than 180 around from the position shown in Fig. 9.

1 designates the base of the en inc from which extends the vertical uprig ts -2-'2, and 3 designates a crank shaft mounted in suitable bearings in the uprights 2. i

4, 4 are flywheels mounted on the crank shaft 3 and outside the frame 2.

5 designates a cylinder which is provided near its upper end with the outwardly extending trunnions 6, 6, the outer ends of which are journaled in cross-heads 7, 7 "sliding' on guide ways 8, 8, formed on the inner sides of the uprights 2.

9 designates the piston from which fixedly extends the piston rod or stem 10, connected to the crank shaft 3, and 11, 11 a pair of connecting rods extending from the trunnions 6 to the crank shaft 12 12 are the crank portions for the connecting rods 11, and 13 is the crank portion for the piston rod 10.

It will be noted that the crank 13 is substantially 180 from the cranks 12, 12, and that the length of the crank portion 13 is substantially equal to the length of the crank portions 12. From this it will be seen that the piston and cylinder will, in the form of construction sh own, have an equal and opposite movement. It is to be understood however that the relative position of these cranks and the relative length thereof is entirely immaterial, and may be varied if desired.

In the head 14 of the cylinder, we provide an intake valve 15, and an exhaust valve 16. In the form of construction shown these valves are of the ordinary inwardly opening type and are held against their seats by means of the springs 11', 17.

18, 18 designate a pair of brackets extending up from the top of the cylinder head 1.4, in which is mounted the valve operating shaft 19, carrying valve operating earns 20, 21. These cams "are in line with the valves 1.5 and 16 respectively, and are so set on the 100 shaft 19 as to open and close the intake and exhaust valves. 22 is a second shaft mounted in the brackets 18, said shaft carrying a gear 23 meshing with a gear 24 on the shaft 19, whereby the cam carrying shaft -'-is 105 actuated.

25 designates an arm in the form of a link been possible, and at the same time enabling secured to one end of the shaft 22, and 26 is a pin fast on a bracket 27 secured to the upper ends of the sides to the frame, the pin extendin in to the slot of the link. y means 0 this connection the shaft 22 is given a revolution for each complete reciprocation of the engine.

28 designates the intake port which is shown as being connected to a carbureter 29 by means of a pipe connection 30, the carbureter 29 being shown as supported upon a bracket 31, extending out from one of the side frames 2. In the form of construction shown, the connection between the pipe 30 and the carbureter at one end thereof, and the intake port at the other end, is effected by means of a socket 3232, formed on the carburetor and intake port respectively, and a sleeve 33, 33 slidably mounted at each end ofthe pipe 30, the outer end of each of these sleeves being ball shaped in order to tightly fit the sockets 32. 34 is a spiral spring encircling the pipe 30 and pressing at each end against a sleeve 32, wl'lereby the ball ends of the sleeves are held in their sockets, and the necessary yield to the connection provided. 35 designates the exhaust port which, in the form of construction shown, exhausts directly into the atmosphere, but which, as will be understood, may be connected to a muffler, condenser or other exhaust handling device.

It being remen'lbered' that the piston and cylinder move simultaneously in opposite directions, and that in the form of construction by which we have illustrated our invention, the engine is of the four-cycle type, it will be understood that upon one downward stroke of the piston and the simultaneous upward movement of the cylinder a charge will be drawn into the cylinder through the valve 15, and this charge will be compressed when the piston moves upward and the cylinder downward during theseeond half of this revolution, and that the charge will then be exploded through. a spark furnished by means of an. ordinary spark plu 36 when the piston will be driven down. and the cylinder upward, bothmoving under the influence of the explosion until this half revolution has been con' pleted, and then upon the next half revolution, the exhaust valve being open, the

l l l l movement of the cylinder and piston will a be to exhaust the exploded charge. it will be noted that the cylinder has an oscillatory movement on its trunnions, keeping the piston rod always in line with the axis of the cylinder and causing the thrust thereof to be always in a right line, the cylinder itself being connected to its cranks by means of the. connecting rodsd l. The effect of this construction is to cause. a greater percentage of the energy developed in the cylinder to be de- .livered to the crank shaft than has heretofore l l l t i t t l the parts to be made lighter because of the fact that the crank shaft takes substantially all the strain off the frame and that the strains on the crank shaft are opposed and balanced.

While we have described our invention in connection with an explosive engine, it is to be understood that the rineiples of our in vention are equally welf adapted for use in connection with steam, air, caloric or other engine operated by fluid, and that in. the foregoing specification we have only de scribed one form of mechanism for carrying out our invention, and that our invention is not to be limited to the means and mechanism shown and described.

1. In an engine, the combination with a cylinder having reciprocatory and oscillatory movements, of a piston in said cylinder, said piston comprising a head and a stem lLxed thereto, a crank shaft to which said stem is directly connected,- and a connecting rod connecting the cylinder to the crank shaft.

2. In an engine, the combination with a cylinder having reciprocatory and oscillatory movements, of a piston in said cylinder, said piston comprising a head and a stem fixed thereto, a crank shaft having cranks dis posed substantially opposite each other, said stem being directly connected to one of said cranks, and a connecting rod connecting the cylinder to the other crank.

3. In an engine the combination with a cylinder having reciprocatory and oscillatory movements, of a piston in said cylinder, said piston comprisin a head and a stem fixed thereto, a crank s aft having a pair of cranks disposed in axial alinement on one side thereof, and a third crank disposed substantially opposite the first two mentioned cranks, said stem being directly connected to said third crank, and connecting rods connecting the cylinder with. said pair of cranks.

4'. In an explosive engine the combination with a cylinder having a reciprocatory movement, of a piston in said cylinder, a crank shaft to which said piston and cylinder are both connected, a stationary carburetor, a pipe and connections between the pipe and the cal'lulreter and the pipe and the cylinder whereby the cylinder may move in relation to the cm'bureter, without breaking said connections.

ln an engine the -ombination with a frame, of a cylinder pivotally and slidahly mounted in said frame, a piston in said eylinder, said piston comprising ahead and a stem [ixed thereto, a crank shaft journaled in the frame to which said stem is directly connected, and a connecting rod connecting the cylinder and the crank shaft.

6. In an explosive engine the combination with a frame of a cylinder pivotally and slidably mounted in said frame, a piston in said cylinder, a crank shaft j curnaled in the frame wherebi the movement of the cylinder frame to which the piston is connected, a connectin rod connecting the cylinder and v crank sha t, valves 0n the cylinder for 0on trolling the,su ply and exhaust from the cylinder, a shal means whereby the shaft will operate the valves; an arm on said shaft connected to the t mounted on the cylinder,

e shaft. WILLIAM A. EDWARDS. CHARLES E. ELLIS. DAVID -F. CORNELL.

will operate t Witne'sses:

LILLIAN EDWARDS, MINNIE E. ELLIS.

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