US1328972A - Engine - Google Patents

Description

N. S. STEIN.

ENGINE.

v APPLICATION FILED FEB. 2, I918- PatentedJan.

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N. S STEIN.

ENGINE.

AEPLICATION FILED FEB. 2, I918.

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wilbmzm N. S. STEIN.

ENGINE.

APPLICATION FILED FEB. 2. I918.

13328,,972. v Patented Jan. 27, 1920.

3 SHEETS-SHEET 3- I Id! reference KOAH S. STEIN, OF BRISTOL, INDIANA.

ENGINE.

Specification of Letters'l'atent.

Patented Jan. 27, 1920.

Application filed February 2, 1918. Serial No, 215,143.

To all whom it may-concern Beitknown that I, NOAH S. S'rn'm, acitizen ofthe-United States, residing at Bristol, in the county of Elkhart and State of Indiana, have lnvented a new and useful "Engine, of which the following is a specification.

The subject of this invention is an engine in which pivoted or rocking cylinders are employed; I

The main object of the invention is to reduce the number of moving parts of the engine;

Another object is to secure a more continuous and uniform action of tlie steam;

Another object is to eliminatethe eccentric from an engine;

Still another object to avoid dead centelS' Ahother object is to provide a simple durable and eflicient engine.

With the foregoing and other objects in view which will appear as the descr ption proceeds, the invention resides in the combination and arrangement of part and in the details of construction hereinafter described and claimed, it being understood that changes in theprecise embodiment -of the invention can be made Withinthe scope of what is elaimed'without departing from the spirit of the invention.

A practical embodiment of the invention is shown in the accompanying drawings, wherein y i Figure 1' is a side elevation of the enjglne, a portion of the cylinder bein'gin section;

Fig. 2 is ajp1an view apor'tion broken away; 7

Fig. 3 is a cross section on the hne 3- 3 of Fig. 2;

Fio', 4 is a fragmentary detail taken on the line 44 of Fig. 3

Fig. 5 isa similar view taken on the line 5- 5'01 Fig. 3; I

Fig.6 is asimilar view taken on'the line -e -'6-e'Fi ."3. V y

Fig. Tie a view showing, in diagram, the arrangement of :the fixed'and movable inlet and exhaustports; I

Referring to the drawingsby numerals of In carrying' out the invention a bedgplate is provided" which .is "formed with 'up- .fstandinp; sides 11 at each end of which silles j'ournahngi'bloeks'" '12 are-"provided; Lateral through which project the stems 32 of the extensions 13 are formed at the longitudinal center of the bed plate and from the outer endof each extension 13 rises a standard providing a journaling block 14:.

The sides 11 of the bed plate are preferably extended upwardly at their centers and are offset inwardly as indicated at 15, Fig. 3. These offsets are vertically bored to receive the cylindrical intake valves 16, four of which are provided, and the outlet valves 17, which are likewise four in number.

The opposed faces of the offsets or ex tensions 15 are tapped adjacent each end and near the top'to receive nipples 18 which communicate with the bores in which the intake valves turn and which extend from a T-joint 19. The T-joints 19 are connected through horizontally disposed pipes 20 with a T 21 from which'an intake pipe 22 extends upwardly.

These opposed walls are also tapped toward each end and near their lower edges to receive nipples 23 which extend from per and lower apertures 28 which communicate with the bores in which'the inlet valves 16 turn, and also with upper and lower ducts 29 which communicate with the bores in which the exhaust valves 17' turn.

A cover or top 30 is seated on this central portion of the sides 11 and is secured thereto by screw bolts 31 o otherwise. This top is provided with a series of apertures inlet and exhaust valves.

Ainutllated gear 33 is secured to each projecting stem of the inlet and exhaust valves. "These mutilated gears mesh with racks formed on bars 35 which are mounted to reciprocate longitudinally of the engine through guides 35. By sliding the bars 35 to the position shown'in Fi'g. Qth'e valves are set tocause the en in e to 'run'over or forward while sl ding t e bars "to the "opposed positron reverses the'engme.

.Asegmenta1'rack36 issecured to and rises from the topSOand to this 'racki's pivotally secured a lever37, whichleveiis connected \bya link 38 ton tie-plate 39 which extends between and is secured to the bars 85. The lever 37 is, as will be understood, the reversing lever.

The inlet valves 16 are provided with upper ports which are positioned to register with the inlet nipples 18 in either po sition of the valves. These valves are also provided with upper and lower ports ,tl which alternately register with the upper and lower bores 28 upon reverse and forward movement of the engine, respectively.

The exhaust valves 17 are provided with ports 4L2 which register with the outlet or exhaust nipples 23 in either position of the valves, and also with upper and lower ports 4-3 which register with the upper and lower bores 29 upon forward and reverse movement of the engine, respectively.

A cylinder 4-4 is mounted on each side of the bed plate between the upstanding side 11 and the standard at the end of projection 13, and each cylinder is provided with trunnions which oscillate in the journaling blocks 14 and blocks 46 formed on the inner face of each side 11. Each cylinder is of irregular external formation and presents a flat surface l? to the outer face of each side 11.

A'piston 48 is provided in each cylinder and is mounted centrally of a piston rod 49 which has at each end a journaling member 50 in which turns the pin of a crank 51 secured to a shaft 52 which is journaled in the blocks 12. A fly wheel 53 may be provided on each'shaft.

On one shaft 52, which will be termed the drive shaft, is fixed a beveled gear 54: which meshes with a beveled gear 55 secured to the end of a shaft 56 which may be suitably j ournaled in the bed plate and convey power 7 from the engine to desired parts.

Each cylinder has a pair of apertures 57 formed adjacent each end and adapted to register with the apertures or bores 28 during certain periods of the oscillation of the cylinders.

A pair of apertures 58 is also provided adjacent each end of each cylinder and these apertures are adapted to register with the bores 29 during certain periods of the oscil lation of the cylinders.

Each cylinder is also provided, near each end, with a by-pass 59 which permits the expanding steam to escape to the advancing face of the piston just before the end of-a stroke so as to relieve the pressure on the rear of the piston and cause a smooth and even reversal of motion.

By referring to Fig. 7 it will be noted that the movable ports 57 and 58 carried by the cylinder have been designated by-the letters a, 5,0, and d. In said figure the stationary inlet ports have been indicated at 28", 28 28 and 28 while the stationary exhaust ports have been indicated at 29, I

29*, 29 and 29. Assuming that the crank 51 is moving downwardly from the position shown in Fig. 1, during the first half rotation of the crank, the port 57 will move downwardly into register with the open inlet port 28 while the port 58 will move downwardly into register with the closed exhaust port 29.. At the same time the port 57 will move upwardly into register with theclosed inlet port 28 and the port 58 will move upwardly into register with the open exhaust port 29. Thus pressure entering the registering ports 28 and 57 will drive the piston longitudinally and allow steam at the other side of thepiston I to exhaust through the ports 58 and 29.

During the second half of the rotation of the crank the cylinder will be rocked so as to reverse its position, bringing the port 57 into register with the closed inlet port 28 and bringing the exhaust port 58 into register with the open exhaust port 29 At the same time port 57 will be brought into register with the open inlet port 28 'while the port 58 will move into register with the closed exhaust port 29. Thus pressure will be directed against the opposite end of the piston and a complete cycle of rotation will be efiected. By shifting the lever 37 the racks 34L are moved longitudinally so as to rotate the valves 16 and 17 to close one of the ports of each valve and open the-other port thereof. This will result in the prompt reversalof the engine, as will be obvious.

- It will be noted that the only movement of the valves takes place when the engine is reversed or stopped, consequently no eccentric is required.

Having thus described the invention, what is claimed as new'and sought by Letters Patent, is v An engine lncluding a bed plate formed with upstanding sides, spaced pairs of valve casings formed in each of the sides, each of said casings being provided with upper and lower ports, an intake valve in one casing of each pair and having upper and lower non-alining ports movable into and out of register with the corresponding ports in the casing of the valve, an outlet valve in the other casing of each pair and having upper and lower non-alining ports movable succes sively into register with the corresponding ports in its casing, gears connected to and revoluble with the respective valves, racks engaging the gears, means for moving the racks to rock the valves, cylinders mounted to rock atvthe respective sides of the bed plate about an axis extending between the spacedpairs of valve casings, a pair of ports in the side of the cylinder at each side of the axis and between and movable successively into register with the adjacent intake ports in'the bed plate, and a pair of ports at each side of the axis of the cylinder and opening into the cylinder, said last named ny own I have hereto afiixed my signature ports working between and being movable 1n the presence of two witnesses. successively into register with the adjacent T outlet ports in the bed plate, pistons in the NOAH STEIN 5 cylinders and rods extending from the Witnesses:

pistons.

DANIEL M. RUST, In testimony that I claim the foregoing as MELVIN J. CLARK.

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