US696741A - Motor-car. - Google Patents

Description

No. 696,741. Patented Apr. I, 1902. J. G. MATTHEWS.

MOTOR CAR.

(Application filed Sept. 7, 1900.) (No Model.)

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N0. 696,74l. Patented Apr. I, H902.

J. G. MATTHEWS.

MOTOR GAR.

(Application file'sept. 7, 1900.] (N o M n d e l 3 Sheets-Sheet 2.

N0. 696,74l. Patented Apr. l, I902.

J. G. MATTHEWS.

MOTOR CAR.

(Application filed Sept. 7 1900.) (No Model.) 3 Sheets-Sheet 3.

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JOHN G. MATTHEWS, OF THREE RIVERS, MICHIGAN, ASSIGNOR TO THE SHEFFIELD OAR COMPANY, OF THREE RIVERS, MICHIGAN.

MOTOR CAR.

SPECIFICATION forming part of Letters Patent No. 696,741, dated April 1, 1902.

Application filed September 7, 1900. Serial No. 29,246. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, JOHN G. Mnrrnnws, a citizen of the United States, residing at the city of Three Rivers, in the county of St. Joseph and State of Michigan, have invented certain new and useful Improvements in M0- tor-Oars, of which the following is a specification.

This invention relates to improvements in locomotive-cars, and particularly to improve ments in theengine and driving mechanism for such cars, the improvements being especially adapted for light railway-cars,although they can be utilized with engines in other relations.

The objects of the invention are, first, to provide an improved construction of locomotive-car especially adapted for light-weight cars 5 second, to provide an improved doublepistoned engine-cylinder for use in such improved locomotive-car; third,to provide an iinproved double-pistoned engine-cylinder with improved couplings therefor to the drivingwheels; fourth, to provide in an improved motor-car improved couplings for the driving-wheels whereby they will always be in the proper relative positions to receive impulses from the engine; fifth, to provide in a motorcar an improved construction and arrangement of parts, whereby strain on the framework due to the action of the engine is reduced to a minimum; sixth, to provide an improved and compact structure of engine for the purpose described.

Further objects will definitely appear in the detailed descriptionto follow.

I accomplish these objects of my invention by the devices and means described in this specification. The invention is clearly defined, and pointed out in the claims.

The features of my invention as applied to a motor railway-car are clearly illustrated in the accompanying drawings, forming a part of this specification, in which- Figure 1 is a plan view of the frame of a motor hand-car with the principal parts of the engine in position. Fig. 2 is a side elevation of the structure appearing in Fig. 1, taken from the right hand of the page. Fig. 3 is a longitudinal detail sectional elevation taken on a line corresponding to line 3 3 of Fig. 1, showing the details of construction and position of parts. elevation of the driving-wheels, cranks, and connecting-rods, the position of the rods on the farther side being indicated by dotted lines, the enginecylinders being omitted. Fig. 5 is an enlarged detail longitudinal sectional elevation taken on line 5 5 of Fig. 1, showing the structure of the engine-cylinder and adjacent connected parts and the means of supporting the cylinder. Fig. 6 is an enlarged detail sectional view taken on line 6 6 of Fig. 4., showing the crank and Wrist-pin connections for the coupling-rods and pitman at that point-namely, on wheel 13. Fig. 7 is an enlarged detail sectional view taken on line 7 7 of Fig. 4, showing the details of the crank and wrist-pin for the connection of the coupling-rods and pitman on the farther side of the driving-wheel at that pointnarnely,on wheels 13 and Bthese parts being identical, but placed at different angles. Fig.8is an enlarged detail sectional view taken on a line corresponding toline8 8 of Fig. 4, showing the details of the construction and the action of the connecting-rod and pitman at that pointnamely, on wheel B. Fig. 9 is an enlarged detail view of the means for actuating the electric igniter at the middle of the cylinder, the detail being enlarged and showing the relation of parts omitted from Fig. 5.

In the drawings all of the sectional views are taken looking in the direction of the lit tle arrows at the ends of the section-lines, and similar letters of reference refer to similar parts throughout the several views.

Referringto the lettered parts of the drawings, A A A A represent the longitudinal beams of the frame and A A A A the crossbeams.

R R represent cross protecting-timbers at each end, which are supported by the iron bracing-brackets R R. v

To the under side of the outer side pieces A, I secure a longitudinal metallic strip H, to which are secured the brackets R for the axle boxes and cross-rods C" C for the support of the engine-cylinder, and these cross-rods extending through eyes H in the longitudi Fig. 4 is a detail side I nal pieces H. The brackets P fit in between the shoulders H" H on the bars II and are secured in position by suitable bolts. Thus the axles and their boxes and the engine-cylinders are supported in a fixed relation to each other and are strongly braced independent of the frame.

B B are axles which extend out through the bearings at each side and are provided with driving-wheels B B B' 13. The enginecylinders O are open at each end, and apiston D D is in each end of the cylinder. A pitman D is pivoted to each piston D and extends outwardly from the cylinder and is con nected to a suitable wrist-pin L, so as to actuate its proper driving-wheel, there being an engine-cylinder on each side of the car. To the wrist-pin L of the wheel 13 is secured a crank M, which extends radially across the center of the wheel B to the opposite side, the end of the crank being provided with a journal to receive the end of the connecting-rod E. The wrist-pin L of the wheel B is extended at L into the same plane with the end of the crank M to receive the opposite end of the coupling-bar E at that side. It will thus be seen that the wrist-pins of the driving-wheels B B, to which the pitmen are connected, are

opposite each other, so that when they are forced outwardly from the engine-cylinder they will serve to rotate the driving-wheels in the same direction, one being above the center and the other below, and as the driving-wheels are coupled by the bar E and rotate together they are always kept in the same relation to their respective piston-heads within the engine-cylinder.

On the opposite side of the car the drivingwheels 13" and 13 are provided with wristpins L, which occupy the same relative positions to these wheels as the wrist-pins of the wheels B B do to those wheels. Cranks G are connected to these wrist-pins L and ex tend in a line oblique to a radial line and to a position one-quarter way around the circle, and to these cranks G is secured the coupling-rod E. It will thus be seen that the couplingrods E E to each side positively couple all the driving-wheels together, so that one cannot be rotated without its acting upon all of the others and rotating them in the same direction so that all the driving-wheels are always in the proper position to be acted upon by the engines at each side.

Each engine consists of a cylinder 0, which is open at each end and contains a piston D in each end which reciprocates back and forth under the action of any suitable explosive. The central part of the cylinder is somewhat enlarged, and in this part the explosive mixture is compressed by the pistons D D moving toward each other at the center.

An aperture is in the upper side of the cylinder, and to this is connected the ignition or explosion chamber. This explosion-chamber is provided with the usual inlet and exhaust valves, although exhaust-valves are provided in the under side of the engine-cylinder, so that itis only necessary to exhaust the residuary gases remaining in the cylinder at this point.

The exhaust-valves and inlet-valve are of any usual construction. The igniter is provided with a spring, as clearly appears in Fig. 5, which permits a considerable motion of the igniter by the cam without actuating the electrode K, the details clearly appearing in Fig. 9. This avoids a close adjustment and permits the proper movement of the igniter in a compact space, which, of course, is desirable where the igniter is located above or at one side of the cylinder.

The cylinder, as I have already stated, is supported by the cross rods or bars 0 C, the rod extending through a suitable ear formed integral with the cylinder at one end and through an ear on a collar which embraces the cylinder at the opposite end.

The water-jacket for the cylinder 0 is bored out and slipped over the end of the cylinder and fits tightly into position on suitable collars on the cylinder turned to fit the interior of the same.

The bracket which fits the cam-shaft is preferably secured to this water-cylinder, as clearly appears in Fig. 5. I have not shown the pump and attachments for supplying a current of water to this water-jacket, as they may be ofv any desired or usual construction.

I have thus described all of the parts of my improved motor'railway-car in their preferred form. I am aware that they can be greatly varied in their form and arrangement without departing from my invention. I have shown a convenient and practical construction of double-piston cylinder, but am aware that its form could be greatly varied and still serve its purpose very satisfactorily in this connection. The metallic plates on the under side of the frame serve to bind all the operating parts together and are very useful to that end and possess great merit. However, the parts might be satisfactorily supported by increasing the strength of the frame.

While I have shown an engine at each side, a single engine might be utilized to drive the car; but the expense of the additional cylinder is very slight, and by providing two cylinders a great advantage is secured in explosive-engines on account of the facility with which the smaller engine can be kept cool and in working order. I have shown the couplings on the driving-wheels on opposite sides of the car. The same couplings might be ap: plied all on one side; but this would of course increase the complexity of the structure. I mention these modifications merely to indicate the scope of the invention and the utilities of the difierent parts and special combinations when independently considered.

Many other modifications than those Ihave mentioned would be obvious to the skilled mechanic and it would be idle to attempt to enumerate them all here.

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

1. In a motor-car the combination of the framework; metallic bars or plates H under the framework and secured thereto, provided with seats for the boxing of the driving-gear and with holes for the supporting-rods for the cylinder; axles B, B, with driving-wheels B, B, B, 13, secured thereto; cranks or wristpins on said driving-wheels in the same relative positions at each side, but arranged at an angle to each otheron opposite sides; parallel coupling-rods E, E, coupling the wheels at each side together by means of said cranks and wrist-pins; an engine-cylinder to each side of said frame supported on the rods 0 extending transversely across the frame through the holes in the plate H, said cylinder being open from endto end piston-heads D, D, in the ends of said cylinders adapted to reciprocate to and from the center thereof; pitmen D extending out at opposite ends of said cylinders and connecting said pistons to oppositely-arranged wrist-pins or cranks on the driving-wheel, all coacting substantially for the purpose described.

2. In a motor-car the combination of the framework; metallic bars or plates II under the framework and secured thereto, provided with seats for the boxing of the driving-gear and with holes for the supporting-rods for the cylinder; axles 13,13, with driving-wheels B, B, 13, 13, secured thereto; cranks or wristpins on saiddriving-Wheels in the same rela tive positions at each side, but arranged at an angle to each other on opposite sides; parallel coupling-rods E, E, coupling the wheels at each side together by means of said cranks and wrist-pins; an engine-cylinder supported on the rods 0 extending transversely across the frame through the holes in the plate H, said cylinder being open from end to end; piston-heads D, D, in the ends of said cylinder adapted to reciprocate toand from the center thereof; pitmen D extending out at opposite ends of said cylinder and connecting said pistons to oppositely-arranged cranks on the driving-wheel all coacting for the purpose specified.

3. In a motor-car the combination of the framework; axles B, B, with driving-wheels B, B, B, 13, secured thereto; cranks or wrist-pins on said driving-wheels in the same relative positions at each side, but arranged at an angle to each other on opposite sides; parallel coupling rods E, E coupling the wheels at each side together by means of said cranks and wrist-pins; an engine-cylinder open from end to end; piston-headD, D, in

the ends of said cylinder adapted to reciprocate to and from the center thereof; pitmen D extending out at oppositeends of said cylinder and connecting said pistons to oppositely-arranged wrist-pins or cranks all coacting forthe purpose specified.

4. In a motor-car, the combination ofthe framework; axles 15,13, with driving-wheels B, B, B, 13 secured thereto; coupling means for said axles and drivingwheels; an engine-cylinder open from end to end; piston-heads D, D, in the ends of said cylinder adapted to reciprocate to and from the center thereof pitmen D extending out at opposite ends of said cylinder and connecting said pistons to oppositely-arranged wrist-pins or cranks, all coacting'for the purposespecified.

5. In a motor-car the combination of the framework; driving-wheels secured to suitable axles thereunder; parallel coupling-rods coupling said driving-wheels and axles together, said coupling-rods being connected in different relative positions to said wheel; an

engine-cylinder open at bothends; pistons toward each end ofsaid engine-cylinder and adapted to reciprocate to and from the center thereof; and couplings from said pistons to the drivin g-wheels arranged to drive the front and rear wheels in the same direction on the outward stroke of the pistons, coacting for the purpose specified.

6. In a motor-car, the combination of the framework; driving-wheels secured to suitable axles thereunder; coupling means between said axles and driving-wheels; an engine-cylinder open at both ends; pistons toward each end of said engine-cylinder and adapted to reciprocate to and from the center thereof; and couplings from said pistons to the driving-wheels arranged to drive the front and rear wheels in the same direction on the,

outward stroke of the pistons, coacting for the purpose specified.

'7. In a motoacar, the combination of the framework; bars of metal beneath the same;

boxings secured to said bars carrying the axles and driving mechanism; and an enginecylinder suspended from said bars with oppositely-acting pistons therein coupled to said driving-geaigand arranged to act simultaneously in opposite directions, whereby straining of the frame is avoided, as specified.

In witness whereof I have hereunto set my hand and seal in the presence of twowitnesses.

JOHN G. MATTHEWS. [n s] Witnesses:

F. N. WHrrEsELL, W. J. PRIDMORE.

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