US406194A - Machine - Google Patents

Description

(No Mouel.) 5 SheetsSheet 1. F. J. BURRELL. COMBINED T RAGTION ENGINE AND DIGGING MACHINE.

No. 406,194. Patented July 2, 1889 IN VE N TUB FlEu/rrelb ATTEBT! N. PETERS Phaiulilhwnrher. wnihingion. D. C.

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No. 406,194. Patented July 2, 1889.

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(No Model.) 5 Sheets-Sheet 4. P. J. BURRELL.

COMBINED TRACTION ENGINE AND DIGGING MACHINE.

No. 406,194. Patented July 2, 1 889.

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P. J. BURRELL. COMBINED TRACTION ENGINE AND DIGGING MACHINE.

No. 406,194. Patented July 2, 1889;

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UNITED STATES PATENT OFFICE.

FREDERICK J. BURRELL, OF vTHETFORD, COUNTY OF NORFOLK, ENGLAND.

COMBINED TRACTION-ENGINE AND DlGGlNG-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 406,194, dated July 2, 1889.

Application filed June 21, 1887. Serial No. 242,056. (No model.) Patented in England y 12, 1886, No. 9,059, in France January 11, 1887, No. 180,817: in Spain February 16, 1887,11'0. 10,453, and in Italy March 10, 188?,N0. 21,234..

To all whom it may concern:

Be it known that I, FREDERICK JOHN BUR- RELL, a subject of the Queen of Great Britain, and a resident of Thetford, in the county of Norfolk, England, have invented certain new and useful Improvements in Combined Traction-Engines and Digging-Machines, (for which I have obtained a patent in Great Britain, No. 9,059, dated July 12, 1886,) of which the following is a full, clear, and exact specification.

My invention relates to improvements in traction-engines.

My invention consists of mechanism added to the ordinary traction-engine, whereby the same may be propelled when operating a digger or remain stationary when running machinery.

In the side view Figure 1 is shown the gearing for driving the road-Wheels, and in the side view Fig. 2 is shown the gearing for driving the crank-shaft which actuates the digging-forks. Fig. 3 is a transverse section taken on line x x of Fig. 1. Fig. etrepresents a back view, partly in section, of the same machine, taken on line 3 y of Fig. 2. Fig. 5 is a longitudinal section of the rear end of the machine; and. Fig. 6 is a plan view of the same with the crank-shaft which actuates the digging-forks removed. Fig. '7 represents a modified form of the mechanism for operating the diggers.

In the above figures the digging-forks are shown to be actuated by the upper end of their stems being coupled to the cranks on the crankshaft. If the stems of the digging-forks are coupled at an intermediate point of their length to the cranks and at their upper ends to links, then the crank-shaft is put into a lower position, as shown in Fig. 7.

Similar letters refer to similar parts throughout the drawings, in which' A is the boiler, with the cylinderB mounted upon the top of it and driving the crank-shaft C. On this crank-shaft there is, as usual, a fly-wheel, which also serves as a band-wheel, to allow of stationary machinery being driven from it.

A A are the horn-plates of the fire-box, carried back and made to serve as a frame for carrying the shafts of the digging mechanism. The backward extensions of these plates are tied together by a horizontal plate, upon which the driver stands.

D D are two pinions on the crank-shaft of the engine, either one or other of which can be put into gear with one or other section of the double spur-wheel E on the countershaft F. A pinion G at the opposite end of this counter-shaft can be slid into gear with a toothed wheel H on the axle of the roadwheels, so that the road-wheels can be driven at either one or other of two speeds for traveling or'hauling purposes.

When the machine is to be used for digging, the pinion G is slid endwise along the counter-shaft, so as to be out of gear with the wheel H, and a toothed wheel I is then brought into gear with the pinion, and also at the same time a pinion J, which is fast with the wheel I, is brought into gear with an internal ring of teeth, forming part of the toothed wheel H. In this way the axle of the road-wheels is driven at the slow speed requisite for digging. The toothed wheel I and pinion J are, as shown, carried by an eccentric bush K, so that by turning this eccentric they may be shifted in or out of gear.

From one section of the double spur-wheel E motion is transmitted to the crank-shaft M, which gives motion to the digging mechanism. The spur-wheel E is for this purpose made to gear with an intermediate Wheel L, which also gears with a toothed wheel N on the crank-shaft M. In order, also, that the crank-shaft of the digging mechanism shall not be rotated when the engine is traveling along a road or is being used for other purposes than digging the intermediate wheel L is, as shown in Fig. 2, carried by an eccentric, so that by turning the eccentric it can be put into or out of gear with the spur-wheel E, as required.

IVh en the crank-axis M is placed in the upper positionshown in Figs. 1 to 6 of the drawings the cranks upon it are used to give motion to the stems of digging-tools, which are properly pointed, as seen in the forks 0.

If the stems of the digging-tools are to be acted on by the cranks at an intermediate point of their length and coupled to guiding links at the top, then the crank-axis M is placed in that position indicated, or the bearings of this axis can be made capable of being shifted along guides from the one position to the other.

By constructing the machine in the abovedescribed manner the digging mechanism is in the place where, in ordinary traction-engines, the water-tank is fixed. To allow of this I place the water-tank under the barrel of the boiler or at the side. The space for coal may remain in the same position, as usual. Instead of the horn-plates being carried back in one piece a frame carrying the digging mechanism may be bolted to the horn-plates. The draw-bar for hauling is fixed to the plates of the digging-frame and forms a stay and distance-piece to keep the frame rigid. The horn-plates are tied together below by a T- iron, which goes across, and to which the bearings for the axis of the under lever arms or links of the digging mechanism are bolted.

It will be seen that by the construction of the tender at the back and by the arrangement of the shafts and gearing hereinbefore described the machine, While it embodies all the advantages of the most approved form of traction-engine of the present day,with winding-drum, draw-bar, fly-wheel, &c., in their usual places, can also be used as a diggingmachine, the framing at the back stayed in the manner shown giving ample support for the digging-gear, and the crank-axle of this gear bein very conveniently driven from the intermediate wheel carried by the eccentric bush for throwing in and out of gear.

Hitherto steam-diggers have not been generally useful; but my object has been to preserve the standard design of traction-engine, so that nothing may be sacrificed to the digging-gear. This has never before been attained in any other digging-machine.

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

1. The combination, with a traction-engin e, of the horn-plates A, having journal-bearings for crank-shaft C, rotary shafts F, shaft-earrying eccentric K, shaft M, and the main shaft carrying the wheels supporting the rear portion of the structure, substantially as shown and described.

2. The combination, with a traction-engine, of the crank-shaft G, pinions D D, double spur-wheel E, mounted on the countenshaft F, pinion G, gear-wheel H, gear-wheel 1, pinion J, and eccentric bush K, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 25th day of April, 1887.

FREDK. J. BURRELL.

Witnesses:

T. H. HARRISON, W. II. LEGGATT.

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