US318335A

US318335A - Toy motor

Info

Publication number: US318335A
Authority: US
Publication date: 1885-05-19
Anticipated expiration: 1902-05-19

Description

4 Sheets-Sheet 1.

(ModeL) w. N.. WEEDEN.

TOY MOTOR.

No. 318,335. Patented May 19, 1885.

N. rams, Pxnlo-Lilha m be (ModeL) 4SheetsSheet 2.

W. N. WEEDEN.

' TOY MOTOR.

No. 318,335. Patented May 19, 1885.

WIN HI (ModeL) 4Sheets-Sheet 3.

W. N. WEEDEN.

TOY MOTOR.

Patented May 19, 1885.

UNITED STATES PATENT OFFICE.

W'ILLIAM N. VEEDEN, OF NEWV BEDFORD, MASSACHUSETTS.

TOY MOTO R.

GPECIEICATION forming part of Letters Patent No. 318,335, dated May 19, 1885.

- Application filed September 5, 1884. (Modehl To all whom it may concern.-

Be it known that I, WILLIAM N. WEEDEN, of New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Toy Motors; andIdo hereby declare that the followingis a full, clear, and exact description thereof, reference being had to the annexed drawings, in which- Figure 1 is a perspective view of my improved motor from the front side. Fig. 2 is an elevation of the same from the opposite side. Figs. 3 and 4 are elevations from opposite sides of the frame or trunk of the engine. Fig. 5 is an elevation of the same from the rear. Fig. 6 is a vertical section of said frame upon lines as x of Figs. 3 and 4. Fig. 7 is a like view upon line 00 w of Fig. 5; Fig. Sis a perspective view of the cylinder from its inner side; and Fig. 9 is a'vertical central section of the boiler, fire-box, and base, the lamp being shown in dotted lines swung outward from beneath said boiler.

Letters of like name and kind refer to like parts in the several figures.

The design of my invention is to produce in one organization a toy steam-motor which shall embody all of the leadingfeatures of the usual portable steam-engines; to which end said invention consists, principally, in the construction of the trunk or frame of the engine, substantially as and for the purpose hereinafter specified.

It consists, further, in the construction and combination of the cylinder, alve-seat, and steanrchest, substantially as and for the pun pose hereinafter shown.

It consists, further, in the construction of the boiler, substantially as and for the purpose hereinafter set forth.

It consists, further, in the construction of the fire-box and its combination with the boiler, substantially as and for the purpose hereinafter shown and described.

It consists, further, in a lamp-heaterin which the lamp is secured to and swings outward with the door of the fire-box, substantially as and for the purpose hereinafter specified.

It consists, finally, in a toy motor in which are combined in one organization elements substantially as and for the purpose hereinaf ter shown.

In the annexed drawings, A represents the shell of my boiler, which has the form of a cylinder, and at its upper end is inclosed by means of a dome-shaped head, a, while its lower end is in like manner inclosed by a crownsheet, a, that has, also, a dome shape, its edge, together with the inclosing edge of said shell, being extended downward below its body so as to cause the lower end of said boiler to have a concave bottom. The head a and crown-sheet a are secured to the shell A by solder or by any usual means, while around the upper and lower ends of said shell and, if desired, at points between said ends, are formed rows of convex protuberances, a, that in size and relative arrangement correspond to and resemble the heads of rivets, and thereb y give to the boiler the appearance of having the construction of ordinary steam-boilers. The boiler thus constructed is placed above and supported by a fire-box, which is composed of a cylinder, B, that is somewhat larger in diameter than said boiler,'and has a series of openings, 1), in and through its sides, and a top, I), that has an upward and inward inclination, and is also provided with open ings I)". Said top I) is preferably an outward and downward extension of the crown-sheet a, but may, if desired, be constructed separately. The fire-box B rests upon and is so cured toa circular base, 0, constructed preferably from wood, and at one side is provided with a door, B, that swings horizontally out ward, and affords access to the interior.

Heat for the vaporization of the liquid contents of the boiler is supplied by a lamp, D, which is secured upon the inner side of said door, and when the latter is closed isin proper position for use, and bythe opening of said door, is swung outward, so as to relieve said boiler from heat, and to be in position for trimming, filling, or lighting.

Air for the purpose of combustion enters through the side openings, b,\vhile the heated escaping products of combustion, after having been thrown against the crown'sheet a, pass downward around the dependent edge of the same, and thence upward through the openings Z)". By thus temporarilyconfining said gaseous products within the concave lowor end of the boiler a large proportion of their heat is given off to the latter, and a material saving in fuel effected.

The fire-box, like the boiler, is. provided with. encircling rows of protuberances, which resemble rivet-heads, and complete the resemblance of the apparatus to a regularly-constructed stcanrboiler and fire-box. At the center of the head a is an opening, within and over which is secured the frame or trunk E of my engine. As seen in the drawings, said frame consists, generally, of a cylindrical vertical center, from one side of which a bracket-arm, 6, extends horizontally outward, and terminates in a horizontal journal-box,- c, that is arranged at a right angle to theline of said arm.

At the vertical center of the frame E is an enlargement, e, which upon two opposite sides is provided with parallel vertical faces,- c" and Within one of said faces 6 are formed two horizontal recesses, e" and c, that have the form shown in Fig. 3, and extend nearly to the ends of said face. From saidupper recess, a, an opening, 0 extends in-. ward to the center of said frameE, and thence enlarged upward to the top of thelattenwhilefrom said lower recess, 6, a similar opening,-

c extends inward and thence downward, and

affords communication with the interior ofthe boiler. Said opening (2* is closed, when desired, by means of ascrew-valve, F, which- 1 longitudinalcenters of the recesses or ports 6' and c, is an opening, 0", which serves as a journal-bearing for the shaft 9 of an oscillating cylinder, G, of usual form. Said cylinder is preferably cast with and forms part of its front head, 9, while its rear head, g, is provided with a peripheral thread, and is screwed into the correspondingly-threaded end of said cylinder. The cylinder G is provided upon one side with a valve-scat, g, which corresponds in size and general shape with the face 0", and is provided near each end with a port, g, that passes through the wall of said cylinder and opens into its interior. Said ports are arranged centrally in a line with the axis of said cylinder, so that when the latter is in position upon the frame E and is arranged horizontally said ports will come opposite to and be covered by the solid portion of said face 0*, which separates the recesses or ports 0 and e of the latter, while, by turning said cyl inder upon or with its pivotal shaft, one of said cylinder-ports 0 will communicate with the upper frame-port, e, and the other cylinderport with the lower fra1ne-port, c. The shaft 9 passes entirely through the frame E, and has its end threaded to receive a nut, H, that operates to hold the cylinder G in position, Between said nut and the face a" is placed 'aspring, h, or an elastic washer, which boiler A and the valve F is opened, said steam will pass through the opening c into the port 0, and from the latter through. one of the ports 7", into the cylinder G, where it will operate to move the piston to the opposite end of said cylinder. The oscillation of said cylinder will cause its said ports 9 to be alternately placed in communication with the induction-port c to admit a supply of steam into said cylinder and then placed in communica tion with the eduction-port e to permit of the escape of said steam after use, such operations being continued and a constant movement of the driving-shaft L thereby produced. The escaping steam passes out of the upper end of the frame E, and in order to conduct the same to a sufficient height to prevent annoyance, and at the same time to render the toy more like an ordinary steanrengine in appearance, a stack, N, is placed upon and extends upward from said frame, and at its upper end has the usual flaring shape.-

At the rear side of the frame E, directly opposite to the bracket-arm e, is a vertical pipe, 0, which at its lower end communicates with the boiler, and at and below its upper end is considerably enlarged. A plug, a, closes the upper end of said pipe, while at a point near the lower end of its enlargement is provided a V-shaped notch, 0 that extends into the interior and forms of said pipe a whistle. A screw-valve, O, passing horizontally through a threaded opening, a, into said pipe below said notch, enables steam to be shut off from or admitted to the same, as desired.

The frame, steam chest, ports, journalbracket,whistle, and valve-boxes for the throttle and whistle valves are cast in one'piece, which requires but slight fitting in order to adapt it to the purpose intended, by which means a large saving in expense is effected, and no liability exists to a derangement of parts.

In order to complete the device it is only necessary that undue pressure should be guarded against, to which end a seat, P, fora safety-valve, 1?, is placed within the boilerhead a, at one side of the frame E, and said valve pivoted upon a lever, Q, which is in turn pivoted at one end upon an arm, 0, that projects upward from one side of said valveseat. A weight, R, suspended by a loop, 1*, from said lever Q, [and adjustable toward or from the fulcrum of the latter, renders the safety mechanism complete.

Having thus fully set forth the merits of my invention, what I claim is-- 1. In a toy motor, in combination with the boiler, the steam chest, journal-bracket, whistle, throttle-valve box, and whistle-valve box, made in one piece of cast metal, support ed upon the boiler, the throttle and whistle valves, the drive -wheel, the shaft thereof journaled in the bracket, and the oscillating cylinder supported from the casting, provided with suitable ports, the piston and piston-rod, substantially as and for thepurpose described.

2. As an improvement in toy motors, in combination with the boiler and the engine, substantially as described, with its valves and whistles supported upon the boiler, the firebox below the boiler, the door for the box,and the lamp supported from and swinging with the door, substantially as and for the purpose described.

3. The hereinbefore-desoribed toy motor, in which are combined in one organization, substantially as shown and described, the boiler, the fire-box provided with the hinged door, the lamp supported upon and swinging with the door, the combined engine-frame, steamchest, and whistle supported upon the boiler, the valves and valve-boxes therefor, the pivoted cylinder, the driving-shaft and fly-wheel, and the safety-valve, all combined into one organization as a toy motor, and adapted to operate in the manner substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 25th day of August, 1884.

WILLIAM N. VEEDEN. \Vitnesses:

CHARLES W. CLIFFORD, XVM. F. GASWELL.