US1690391A

US1690391A - Power lift for road machines

Info

Publication number: US1690391A
Application number: US57061A
Authority: US
Inventors: Roy C Williamson
Original assignee: AMERICAN ROAD MACHINERY COMPAN
Current assignee: AMERICAN ROAD MACHINERY COMPAN; AMERICAN ROAD MACHINERY COMPANY Inc
Priority date: 1925-09-18
Filing date: 1925-09-18
Publication date: 1928-11-06
Anticipated expiration: 1945-11-06

Description

Nov. 6, 1928.

R. C. WILLIAMSON POWER LIFT FOR ROAD MACHINES 5 heets-Sheet 1 Filed Sept.

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Nov. 6, 1928.

R. C. WILLIAMSON POWER LIFT FOR ROAD MACHINES Filed Sept. 18, 1925 3 Sheets-Sheet Nov. 6, 1928.

R. C. WILLIAMSON POWER LIFT FOR ROAD MACHINES Filed Sept. 18, 1925 3 Sheets-Sheet Patented Nov. 6, 1928.

UNITED STATES PATENT oEFlcE:

ROY C. WILLIAMSON, OF KENNETT SQUARE, PENNSYLVANIA, `ASSIGI'NOR TO AMERICAN ROAD MACHINERY COMPANY, INC., 0F XENNETT SQUARE, PENNSYLVANIA, A COR PORATION OF DELAWARE.

i POWER LIFT FOR ROAD MACHINES.

Application led September 18, 1925. Serial No. 57,061.

My invention relates to road machines and more 'particularly to power operated machines for scarifying and grading roads. Machines of this kind have been heretofore made, with power applied to the rear axle, through a Fordson or similar power unit mounted on the machine frame whereby the machine is ropelled. There isatransversely extending r carrying scariiiers and als() a scraping or levelling blade hung from the machine frame, and adapted to be raised or tilted at an angle or thrown out of action entirely, by hand levers and connections from the operators seat or platform.

It will be understood that the operator of a road machine of this kind has two distinct and separate things to take care of. First,

. he has to run his engine and steer the machine in the direction and path to be acted upon, faster or slower as the work may require. At

i the same time he has to attend to the lowering,

tilting and raising out of action of the scarifiers and scraper.

The object of my invention is to provide a road machine of this description wherein Vthese raisings and lowerings and tilting adjust-ments of both scarifiers and scraper may be operated by power from the engine which is at the same tlme pro elling the vehicle.

Thus the manual 1a r falling upon the operator is greatly lessened and he can' devote more time and attention to the operation of the various adjustments, insuring better work I will now proceed with a detailed description of aroad machine having my invention applied thereto, with reference to the accompanying drawings, in which- Fig. 1 is a side view ofa road machine embodying my invention, partly in section, and showing a Fordson power unit in broken lines.

FigQ is a plan view of a portion of the same, drawn to an enlarged scale.

Fig. 3 shows a cross-section, slightlyenlarged, on the line 3 3 of Fig. 1.

Fig. 4 is an enlarged detail ofconstruction shown principally in section.

The frame a of the machine, carried upon the wheels b, has mounted on it a motor shown as a Fordson c. The driving axle d of the Fordson imparts motion to the driving axle done by the machine and better time in doing ,The front cranking shaft is connected by "a suitable coupling It with an extension carrying a worm t' meshing with a worm wheel j turnable upon a cross shaft c mounted in bearings on the machine frame.

Shaft c carries a standard form of clutch Z, by means of which worm wheel j is caused to drive shaft k when desired. The clutch is operable by means of levers and links m co-nnecting With a rod n which extends rearwardly to a hand lever, not shown,vconvenient to the operator.

Slidably splined on shaft k is a member having two conical friction wheels o facing toward each other. A longitudinally extending shaft p carries a similar conical friction wheel g, projecting intermediate wheels o in such manner that when the member carrying wheels o is slid along shaft k, frictional contact is made between wheel g and either one or the other of Wheels o, whereby7 shaft p may be driven in either direction.

As seen in Fig. 2'the member carrying wheels o vmay be operated by means of bell crank lever f." connected with reach rods s," which extends rearwardly and is connected with a hand lever, not shown, convenient to the operator. y

Shaft p is mountediat its forward end in a suitable bearing t and carries a worm u', which meshes with a worm wheel sector o on a cross shaft jw mounted in bearings on the machine frame.

Shaft w carries at either end arms or cranks a: which arevpivotally connected by links y with the scarifier frame z.

ed scariier bar is swung forward and upward.

The usual scariers 6 are clamped to frame .e by individual blocks and bolts 7 and are thus raised or lowered by the operator,

by sprockets and belt f in' Frame e is sus? pended at both ends by bars pivotally hung through reach rod 8, moving the friction wheel member o in one direction or the other.

The scraper bar 8 is ixedly carried by suitable links from brackets 9 depending from a ring 10, carried in turn by a swinging frame 11, by means of a central pivot 12. Thus, the ring or circle and scraper bar carried by it may be turned about pivot 12 in a horizontal plane. The circle is provided with a series of holes 13, and after the scraper bar has been turned to the desired angle a bolt 14 is dropped throufrh a hole rovided for itin frame 11 and the liole 13 w ich aligns with it, and thus the circle and scraper bar are held in their angular position with respect to frame 11. Depending anglesl, from framell, underlie portions of circle 10, and

the angle which underlies bolt 14 is provided with a hole, in line with the hole in frame 11, whereby bolt 14 passes through both holes,-

and between them, t-hrough a hole 13 of circle 10.

Frame 11 is supported at its rearward end by a horizontal pivot 16 in a block which is turnable on a vertical pivot 17, in a yoke 18, which in turn is pivoted horizontally in cross member of the machine frame. frame may be swung from side to side about pivot 17, up or down about pivot 16, and may be swivelled by means of pivot 18.

Frame 11 at its forward end carries a crossbar 19, both ends of which are supported by rods 20 depending from arms 21 of worm sectors 22, mounted in brackets 23 on both side members of frame a. In these brackets are also mounted short vertical shafts/carrying worms 24 in mesh with worm sectors 22, and at its lower end each shaft carries a conical friction wheel 25.

Friction wheel 25, on each side of the machine, is arranged to be driven in either direction by a slidable member having two conical friction wheels 26, in a similar manner to the before-described friction wheels g and o. Each of these slidable members is splined to a horizontal shaft 27,'which extend forward and are arranged to be driven from cross shaft 7c by means of bevels 28. The shdable members carryingr the friction cones 26 are individually movable from a central position in which they do not contact with cone 25, either backward or forward, by means of yoke arms 29, which are connected by reach rods 30 with hand levers 31 arranged convenient to the operator. By operating one .of these hand levers, therefore, when the engine 1s running andclutch Z is thrown 1n mesh to drive shaft k, the operator can at will cause the vertical shaft carrying worm 24, on either 'side of the machine, to rotate in either direction, thus raising or lowering that end of bar 19 on frame 11 and with it that end of the scraper bar, which movement is allowed by the swivelling of yoke 18 in cross member 40.

Thus the' The following provision is made for maintaining the scraper, bar in any set position sideways, whether it is desired to run with the scraper central or projecting one side or the other.

Crossbar 19 of frame 11 has rigidly secured to it a guide bar 33 having a series of holes 34. A slide 35 is mounted upon bar 33 and carries a spring-pressed pin 36, in line with holes 34, whereby the slide may be definitely located at various points alon the bar. A swinging rod 37 connects sli e 35 with a crossbar 38 connecting the two side members of frame a.

As shown in the drawings, the scraper is shown in center position. By withdrawing pin 36 free of bar 33, bar 17 and frame 11 may be swung to one side, bar 33 sliding in slide 35, and pin 36 allowed to enter another holel 34, holding the swinging frame 11 and scraper carried thereb in set position.

The front w ieels of the machine are mounted upon steering kunckles (not shown) which are connected in the usual manner and may be actuated as by a rod 41 with an arm 42 on a post 43, at the other end of which is another arm 44 from which a reach rod 45 extends rearwardly where it is connected with the steering post 46 of the Fordson by bevel gears or other means, not shown as it involves no invention.

Having now fully described my invention, what I claim and desire to protect by Letters Patent is:

1. A road machine having a frame with supporting wheels, a motor on the frame, means for driving the machine by the motor, a road working tool pivotally mounted on the frame, a transverse shaft on the frame, cranks on the shaft, connections between the 'cranks and the tool, a worm and worm wheel connection for rotating the shaft, and clutch means for connecting the said shaft to the motor for raising or lowering the tool.

2. A road machine having a frame with supporting wheels, a. motor on the frame, means for driving the machine by the motor, a road working tool pivotally mounted on the frame, a transverse shaft on the frame, cranks on the shaft, connections between the cranks and the tool, a transverse power shaft, a worm wheel on the first shaft, a longitudinally extending shaft having a worm thereon meshing with the worm wheel, shiftable friction cones on the transverse power shaft, a friction cone on thelongitudinal shaft arranged to be engaged by either of friction cones, and clutch means for connecting the power Shaft tothe motor.

3. A road machine having a frame with supporting wheels, a motor on the frame, means for driving the machine by the motor,

lOO

a road working tool pivotally mounted on v last mentioned worm wheel to the` power shaft.

4. A road machine having a plurality of tools vmounted thereon, a motor, a transverse power shaft and two longitudinal power shafts geared thereto, a worm and worm wheel connections including a clutch between the motor and transverse shaft, connections between each of the longitudinal power shafts and one of the tools. and a clutch between each of said longitudinal power shafts and said tooll 5. A road machine having a plurality of tools mounted thereon, a motor, a transverse power shaft and two longitudinal power shafts geared thereto, a worm and a worm wheel connection including .a clutch between the motor and transverse shaft, adjusting connections between the longitudinal powershafts and one of the tools including shiftable friction cones, whereby the tool may be` moved in either direction, and means for shifting either of said cones to raise or lower on end of the tool independent of the other en 6. A road machine having a frame with supporting wheels, a motor on the' frame, means for driving the machine by the motor, a road working tool ivotally mounted on the forward end of the rame, a transverse shaft on the frame, crank and link connections between the shaft and tool, a longitudinal shaft journaled on the frame, worm and worm wheel connections between said shafts, and means for connecting said longitudinal shaft to the motor.

7. A road machine having a frame with supporting wheels, a motor -on the frame, means for driving the machine by the motor, a road working tool ivotally mounted on the forward end of the rame, a transverse shaft on the frame, crank and link connections between the shaft and tool, a longitudinal shaft j ournaled on the frame, worm and worm wheel connections between said shafts, a second transverse shaft mounted on the frame,

means for driving the second transverse shaft by the motor, .and a friction clutch connection between the second transverse shaft and the longitudinal shaft arranged to rotate the longitudinal shaft in either direction when the second transverse shaft is actuated by the motor.

8. A road machine having: a frame with supporting wheels, a motor on the frame, means for driving the machine by the motor, a transverse power shaft journaled on the frame, means for drivin from the motor, a plurality of longitudinal shafts journaled on'the frame, gearing connecting said last mentioned shafts with the power shaft, aa road working tool pivotally connected to the frame of the machine, crank and link connections between opposite sides of said tool and ythe frame, and actuating connections between each of said crank and link connections and one of the longitudinal shafts including means for actuating said crank and link connections in either direction when the longitudinal shafts are driven.

9. A road machine having a frame with supporting wheels, a. motor on the frame, means for driving the machine by the motor, a road working tool pivotally mounted on thefframe, a sector pivotally mounted on each side of the frame, crank and link connections between each sector and one side of theroad working tool, a worm shaft on each side of the frame having a worm cooperating withits sector, and means for connecting said worm shafts with the motor.

10. A road machine having a frame with supporting wheels, a motor on the frame, means for driving the machine by the motor, a road working tool pivoted to the frame, a

the power shaft worm sector pivotally mounted on each 'side of the frame, a crank and link connection between each sector and one side of the road working tool, a vertical worm shaft journaled on each side of the frame, each having a worm meshing with its sector, a cone clutch member on the end of each shaft, a longitudinal shaft on each side of the frame, each of said shafts having two clutch elements arranged to be shifted into engagement with aclutch element on lone of the worm shafts, means for shifting said last mentioned clutch elements, and -means for driving said shafts from the motor.

In testimony of which invention, I have hereunto set'my hand, at Kennett Square,

.` ROY C. WILLIAMSON.