US554421A - heggem - Google Patents

Description

3 sheet ssheet 1.

(No Model.)

G. O. HEGGEM. STEAM STREET ROLLER.

$10 554,421. Patentd Feb. 11, 1896.

WlT/VESSES lit 717M052 (No Model.) 7 It 3 Sheets-Sheet 2.

O. O. HEGGEM. STEAM STREET ROLLER.

No. 554,421. Patented Feb. 11, 1896.

(No Model.) 3 Sheets-Sheet 3.

0.0.HEGGEM. STEAM STREET ROLLER. No. 554,421. Patented Feb. 11, 18916.

R A255 R R R, 1 \RN W I I d a 4 5 N w G j E \H A & 4; /J O CHARLES O. HEGGEM, OF MASSILLON, OHIO, ASSIGNOR TO THE RUSSELL d7 CO., OF SAME PLACE.

STEAM STREET-ROLLER.

SPECIFICATION forming part of Letters Patent No. 554,421, dated February 11, 1896. Application filed November 5,1894. Serial No. 528,003. (No model.)

To all whom it may concern:

Be it known that I, CHARLES O. HEGGEM,

a citizen of the United States, and a resident of Massillon, county of Stark, State of Ohio, have invented a new and useful Improvement in Steam Street-Rollers, of which the followin g is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

My invention relates to improvements in steam street or road rollers; and it consists of certain features of construction and combination of parts, which Will be hereinafter described and claimed.

Figure 1 is a sideelevation of a street-roller, illustrating my invention. Fig. 2 is a plan View showing the appliances for turning the guide-wheel to direct the machine. Fig. 3 is a similar View of a part of the appliances for guiding the machine, enlarged. Fig. 4 is a longitudinal section of guiding mechanism, showing the parts adapted for hand or power steering. Fig. 5 is a cross-section from 00 to 00. Fig. 6 is a longitudinal vertical section from 2 to z.

A represents the steam-boiler, on which is mounted steam-cylinder B, having a 'pitman connection with crank-wheel C, mounted on cross-shaft a. On the other end portion of said shaft is placed a clutch-wheel D, on the hub of which is secured a spur-wheel E. (See Figs. 2, 11, and 12.) WVheel E engages wheel F on shaft G, on the opposite end of which is mounted a spur-pinion'I'I, that engages gearwheel J, which carries bevel-pinions, as b, that engage the two bevel-wheels 0 cl, that are connected, one with the axle-shaft c, the other with the hub of roller K, thus forming a continuous train of driving gear-wheels, connecting the piston of the engine and transmitting power through the wheels E, F, H and J and the equalizing-gears to both of the largerear rollers, K and L.

The front or guide rollers, M and N, are journaled loosely on shaft O,secured in frame F. In the front and rear sides of the frame P are provided sockets in which are pivotally secured the prongs g of the swivel-yoke Q. At the top of the yoke Q is provided a spindle portion that enters and is journaled in journal-boX R. Secured to the front side of the smoke-box, and to the right and left sides of frame P are circular angle-bars S, that form a support for the chain T, and through which the chain is connected with the guide-roller frame P.

At the lower righthand side of the watertank U a chain-pulley h, and at the left-hand side a chain-wheel or sprocket 7c, is mounted on shaft Z, journaled in suitable bearings secured to the water-tank and boiler, at the upper end of which is provided a wormwheel m that engages a worm n on horizontal shaft 1:), that extends back to a hand and power actuating mechanism, that will be hereinafter explained.

The guide-chain T is placed about the pulley h and sprocket-wheel m, the ends placed on the flanged circular supports S and secured to eyebolts q that are passed through lugs r on front end of bar S, and to draw the chain tight about the circular frame S and wheels h and m the nuts t are turned onto the threaded portion of the eyebolt q. I wish to held against movement by the Worm n engaging the worm-whee1 m, and can only be moved by the hand or power guiding mechanism, which I will now describe.

A represents a spur-wheel mounted on the engine-shaft a, as shown, said wheel engaging a similar wheel B, mounted on a'shaft C, j ournaled in bracket D. On the left-hand end of said shaft C is mounted a similar wheel that engages wheel F on shaft C, (see Fig. 4,) and on said shaft is mounted a miter or bevel wheel 11, that engages a similar wheel J, mounted on shaft 19, and a similar Wheel mounted on sleeve L, that is loosely mounted on shaft 19. On the inner face of the Wheels J and K are provided flanges u, having tapering inside faces that form tapering sockets o, that are rotated in opposite directions by bevel-Wheel H, and on the front end of the sleeve L is provided a double-coned head X,

adapted to engage the tapering face 1; of the flange u, on which is secured a leather facing to.

The sleeve L is journaled in frame-piece M that is secured to the boiler; the cylinder portion a projected rearwardly and is provided with a helix or curved slot b, as shown in Fig. 3 and indicated by the dotted lines in Fig. 4. At the rear end portion of the sleeve L, which is secured in a sliding relation with the shaft 19 by the spline i, as shown in Fig. 4, is provided an annular groove 0, in which is placed a roller, as d, loosely secured to a semicircular block 6' by the pin f Asleeve, as g, integral or connected with the hand- Wheel h, is passed onto the cylinder portion a of the support M, the slotj to receive the outwardly-projeeted end of the pin f. (See Fig. 3.) The rear end portion of the shaft 1) is enlarged, as shown in Fig. 4, and in the enlarged portion are provided annular grooves 7c and Z, and at the end is secured a cap portion on, having a forwardly-projected lug n, adapted to enter socket o in the rear face of the hub of the hand-wheel h, and in said wheel and carried thereby is provided a locking-bolt 19 the inner end of which is adapted to pass alternately into the grooves 76 and Z.

Figs. 2 and 4 illustrate the parts in position, adapted for power steering, the roller d at the central portion of the helix 1). The coned head is held from engagement with the wheels J and K, which are continuously rotated, by the described gear connection with the e11- gine-shaft. Now to throw the steering mechanism into engagement to turn the guidewheels to the right or left, the hand-wheel h is turned to carry the roller CZ toward the end of the helix, by which the sleeve L will be moved forward or back to carry the cone-head X into engagement with one of the wheels J or K to rotate the shaft 19 and worm n to opcrate the mechanism connecting the worm in the guide-wheel frame.

To adjust the machine forhand-steering, the bolt pis drawn from groove Z, the wheel. and sleeve g drawn back to the rear of pin f, the lug n in the socket o, and the bolt passed into groove k. The wheel is now engaged with the shaft 19 and may be rotated by the handle g to rotate the Worm n, wheelm, sprocket-wheel Z0, and chain T to turn the frame P.

On the right-hand end of the engine-shaft a is mounted a fly-wheel A having the rim overhung, to form an inside clutch. To operate the clutch a bell-crank g is pivoted to a support, as 72 one end of said crank to rest in the groove 0 in sleeve E the other end having a link connection j with an actuating hand-lever This clutch feature is one of great value in street or road rollers, a machine which in use frequently drops into positions it cannot readily be started from, an initial point by the engine, when coupled to the machine, .but if when means as described are provided, the engine may be uncoupled from the machine, and put into operation, and when a considerable speed has been attained, the clutch-shoes may be thrown into engagement with the fly-wheel A the momentum of which will greatly assist in starting the machine.

To clean the rear wheels or rollers, K and L, a scraper is applied, as shown in Fig.1, and a bracket, as O ,is secured to the front side of the water-tank D In the bracket is j ournaled a supporting-shaft Z ,to which are secured arms as m that carry the scraper R and to hold the scraper against the roller a weight, as 0 is secured on the shaft, as shown, (see Fig. 1.3,) and to hold the scraper away from the roller the counterweight maybe thrown forward of the shaft. On the shaft Z is provided a sleeve 19 to which arms 9 are secured, on the outer end of which is placed a scraper 1' similar to 02 (See Fig. 2.) This is provided to scrape the roller when on reverse movement.

To clean the front rollers, a scraper E is provided, which is pivotally supported on the roller-frame bya hanger, as seen in Fig. l.

I wish to call attention to construction of the guide-wheel support and yoke Q, by which guide-wheel frame is connected to front end of the machine. Asheretofore constructed the yoke has been placed with the prongs transverse, or either side of central line of draft, which arrangement limited the vertical end movement of the guide-rollers. To remedy this, I have placed the yoke Q on a line horizontally through the boiler, the prongs astride the guide-rollers and pivotally connected with the front and rear sides of the frame P, thus giving the end portions of the frame and rollers a wide range of vertical movement, with substantially little or no lateral move ment of the front end of the boiler, and, furthermore, the strength of the yoke is applied in the right direction, the truss being in the line of movement, there being little or no lat eral pressure of the yoke.

Having thus fully described the nature of my invention, what I claim is- 1. The combination in a steam street-roller of the guide-rollers, and means for manually operating said rollers to guide the machine, of an interchangeable power mechanism, comprising bevel-wheel H, engaging similar wheels J and K, having flanges u, that form concaved sockets, a sleeve L, supported in the cylinder portion ofthe support M, and engaged with shaft 19, by a spline as Z, having at its front end a double coned or truncated head X, adapted to engage the concaved sockets in the wheels J and K, and at its front end an annular groove 0, block 6 in said groove, roller d and pin f, helix or curved slot Z7, sleeve g, having a slot as j, and the hand-wheel h, groove Z, and bolt 19, by which said wheel is held against longitudinal movement on the shaft 19, but may be rotated with the sleeve g, to move the roller cZ, in the helix, to carry the sleeve forward or back to engage the cone X, with the wheels J and K, and a gear connecting the wheel H with the en gine-shaft, substantially as described and for the purpose set forth.

2. The combination in a guide-Wheel steering apparatus, of the shaft 19, worm and Worm- Wheel and chain, adapted for engagement With the shaft 19, to rotate the shaft and Worm, to operate the guide-wheel, and a power steer ing mechanism, comprising a friction-surface, having a geared connection With the engine, by which they are continuously rotated in opposite directions, friction-surfaces adapted to be moved into engagement with the continuously-rotating clutch-surfaces, and rotated thereby, to turn the shaft 19, in desired direction, the support M, cylindrical projection a, spiral groove 1), sleeve L, groove 0, block (2, roller cl, and pin f; sleeve g, havinga horizontal slot j, therein, roller cl, pin f, and the hand-Wheel h, substantially as described and for the purpose set forth.

The combination in a combined hand and power steering mechanism, of the slidable sleeve L, having an annular groove as c, therein, a rearWardly-projected cylindrical support a, having therein a helix or spirallyinclined groove or slot 1), the pin f in said slot, and secured to block 6 in groove 0, sleeve 9, having a longitudinal slot j, to embrace the pin f, and a hand-wheel to rotate the sleeve g, to move the pin f in the slot, to slide the sleeve L, on shaft h, to engage and disengage the friction-surfaces connecting the sleeve L and shaft h, with the engine, substantially as described.

In testimony whereof I have hereunto set my hand this 23d day of October, A. D. 1894.

CHARLES O. HEGGEM.

WVitnesses:

CHAS. R. MILLER, W. K. MILLER.

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