US1635211A - Combined brush-cutting and road-scraping machine - Google Patents

Description

. July 1 1927- A. FRFFSCH COMBINED BRUSH CUTTING AND ROAD SCRAPiNG MACHINE Filed March 27. 1.926 '2 Shtqtg-Shoot 1 INVENTUR nal/5r r'filrsm' m/dw July 12, 1927.

A. FRITSCH comsnmn sausa CUTTINGPAND ROAD 5011111 11111 MACHINE v Filb'd' March 27. 1924 2 shoots-shun 2 i INVENTDR An us-r FE'ITSEH ATTORNEY Patented July 12, 1927.

UNITED STATES PATIENT OFFICE.

AUGUST FRITSCH, 0F ENGELFELD, SASKATCHEWAN, CANADA.

COMBINED BRUSH-CUTTING AND ROAD-SCRAPING MACHINE.

Application filed March 27, 1924. Serial 0. 702,309. 7

frame carrying a moldboard to which brush cutting knives may be attached, so that the machine may be used, for instance, to cut brush or other obnoxious growth alongthe sides of a road, after which the ground disturbed or torn up by the cutting of the brush may be graded by the same machine upon removal of said brush cutting knives.

With the foregoing in view, the inven tion has for a further object the provision of a machine of this character having a frame structure adjustably supported upon ground wheels so that the moldboard and brush cutting knives carried thereby may be vertically adjusted with respect-to-the surface of the ground traversed without changing the parallel relation of the same.

In addition, the invention has for a further object the provision of machines 'for raising and lowering the forward or rear portions of the machine as required.

The'invention has for a further object, the provision of a combined brush cutting and road scraping machine in which the blades maybe readily attached or detached and the draft attaching means reversed when converting the machine from the brush cutting machine into the road scraping machine or vice versa. r I

Withthe foregoing and other objects in 7 view, as willv appear as the description proceeds, the invention consists in'the novel construction, combination and arrangement of co-operating elements, ashereinafter more specifically set forth, claimed and shown in the accompanying drawings forming a part of the present application, in which:

Fig. 1 is a plan viewof the machine assembled as the brush cutting machine.

Fig. 2 is a side elevation of the machine as shown in Fig. 1. V I

Fig. 3 is a detail'section, substantially on the plane of line 33 of Fig. 2, looking in the direction indicated by the arrows.

Fig. 4 is a detail section, substantially on the plane of line 41-4 of Fig. 3, looking in the direction indicated by the arrows.

Fig. 5 is a detail perspective of the blade to be substituted when the machine is assembled as a road scraping machine.

.Referring more in detail to the drawings in'which similar'reference characters designate corresponding parts throughout the several views, it is to be noted that the machine includes a mainframe composed of the longitudinal side frame member 10, a forward angularv sideframe member 11 and a rear angularside frame member 12. This last mentioned side frame member 12 has a portion 13 bent to form a rear frame member connected with the rear end of the 1011- gitudinal side frame member '10 by a corner connecting member 1 1 or other suitable means; The angular side frame'members 11 and 12 are connected at their'respective rear and forward ends by'a'connecting plate 15 having angular edges 16 or by other suitable means' The transverse frame member 17 has one end secured on the plate 15 while its other end is secured between brackets 18 connecting the same with the longitudinal side frame member 10, as shown clearly in Fig. 1. It will also be seen from Fig. 1 that the forward end of the angular side frame member 11 is connected 'with the forward end of the longitudinal side frame member 10 by a connecting bracket 19 or other appropriate means. It is also to be noted in the drawings that the frame member 12 is preferably composed of angle iron to strengthen the frame structure. The transverse platform 20 is extended across the frame structure and an appropriate drivers seat 21 is mounted thereon; The transverse rearaxle 22 is suspended in suitable bearing brackets 23 suspended in the rear end of the frame structure and has ground wheels 24 mounted thereon. An adjusting lever '25 is employed for adjusting the height of the axle 22 by raisingand lowering the same with respect to the main frame. A link connection 26 is formed between the lever 25 and the axle 22 and the lever 25 may be readily locked in adjusted position on the segmental rack 27, which latter is supported in a suitable manner on the platform "20,

while the lever 25 is pivotally mounted on the auxiliary frame member 28. It is also to be seen from Fig. 1 that the bearing brackets 23 are suspended on a transverse supporting rod 29 extended through the rear portion of the main frame and forwardly of the rear axle 22.

A pair of parallel diagonally extended frame members 30 are provided in the forward. portion of the main frame with their rear ends secured to the transverse frame member 17 while their forward ends connect with the forward diagonal side frame member 11. The axle 31 is extended across the auxiliary frame members 30 and carries the traction wheel 32 having the angular plates 33 provided on its periphery and extending diagonally across the same at a dif ferent angle from the angle at which the traction wheel 32 is positioned in the main frame. Pinions 34: are carried on the opposite ends of the axle 31 and work on racks 35 in substantially inverted U shaped hearing brackets 36 carried on the auxiliary frame members 30, for the axle 81. A worm wheel 37 is carried on the axle 31 and driven by the driving worm 38 meshing therewith and carried on the forward end of the adjusting rod 39. A suitable bracket 10 is mounted on the axle 31 to support the forward end of the adjusting rod 39. It will be seen from 1 and. 2 that the adjusting rod 39 extends through the guide bracket 11 pivoted to the upstanding supporting member 12 carried on the transverse frame member 17 and the hand wheel 13 is provided on the rear end of the adjusting rod 39 within ready reach of the operator, for operating the adjusting rod 39 to raise or lower the axle 31 and thereby regulate the height of the main frame with respect to the surface over which the machine is operating.

The series of standards .44. are mounted on the forward angularly extended frame member 11 and braced by inclined bracing members 14 connected therewith at their upper ends while their lower ends are mounted on the longitudinal side frame member 10, the transverse frame member 17 and one of the angular frame members 30. The rail is mounted on the upper ends of the standards 1 1. This structure may be seen in Figs. 1 and 2 and it is apparent that the standards 44 and rail 45 will protect the traction wheel 32 from thebrush cut by the machine during operation of the same as the brush cutter. The rail #15 may be constructed of angle iron, as shown in Fig. 2, or in any other manner desired.

The series of staggered cutting blades 46 are secured on the outturned lower edge 17 of the scraper 4E8 mounted on the outer face of the angularly extended forward frame member 11, as shown clearly in Figs. 1 and 2.

The cutting edges of the blades 46 are slightly offset from one another and in substantially parallel planes wit-l1 the cutting edges of the blades positioned in advance of one another-toward the forward end of the machine, so that each blade will follow the one forwardly thereof in its cutting action on the brush, as the machine advances, thereby giving a series of glancing or diagonal cuts to the brush during operation of the machines. This may be clearer understood as the description proceeds.

The draft means for the machine includes a clevice 19 carried on the forward ends of the draft bars 50, which have their forward ends parallel and secured together, while their main portions diverge after being extended in substantially parallel relation. the extreme rear ends 51 being again turned and extended rearwardly and also slotted. The attaching members 52 are extended through the rear ends of the draft bars to secure them to the longitudinal side frame member 10 and one of the auxiliary frame members 30, as shown clearly in Fig. 1. It will be seen from this view that the main portions .of the draft bars 50 are extended outwardly across the longitudinal frame member 10 before being extended forwardly in parallel relation and connected, thus supporting the clevice 19 outwardly of the longitudinal side frame member 10, as well as slightly forwardly of the same. A brace bar 523 is connected by one end to the connected forward ends of the draft bars 50 while its other end is attached to the forward end portion of the longitudinal end frame member 10, thereby bracing and assisting in supporting the draft bars 50 in' proper position. A pointed guide blade 54 is adjustably mounted in the clamping bracket 55 on the longitudinal frame member 10, near the forward end of the latter and in depending position, so as to serve to guide the machine in a straight forward direction and prevent the same from swaying from side to side while cutting the brush.

This operation of the machine as a brush cutter will be apparent from the foregoing paragraphs taken in connection with the accompanying drawings without further detail description. Attention may be directed, however, to the position of the cutting blades 46 and the mountingthereof with relation to the draft means and the Lngularly positioned traction wheel 32 and rear axle 22, as the relative position and arrangement of these parts assure efficient operation of the cutting blades 16 on the brush at all times during operation of the machine. The construction of the main frame and the mounting of the operative parts on the same also assure efiic-ient operation of the machine as abrush cutter with the minimum strain on the different parts.

It is apparent from the foregoing disclosure that the invention is particularly adapted for road Work, to first cut brush from along the sides of the road and subsequently grade along the sides of the road Where the soil has been distorted and turned up as a result of the brush cutting operation.

For road scraping or grading purposes, such as premised, the centre of draft should be in front of the scraper 48. This is made possible by disconnecting thedraft rigging 50 from the main frame and reversing the same, as indicated in dotted position in Fig. 1.

What I claim as new is:

In a machine of the class described, comprising in combination a frame structure; said frame structure being formed with one portion in alignment With the direction of travel, a second portion having its forward end connected to and being disposed at an acute angle relative to said first portion and a third portion connecting the rear ends of the first said portion and the second said portion; an auxiliary frame supported intermediate the said frame structure; a main supporting Wheel mounted in said auxiliary frame and acting as a fulcrum relative to said structure; a means for raising and lowering of said auxiliary frame and said frame structure relative to said main supporting Wheel; a mould-board carried by said second portion of said frame structure; a transverse supporting rod carried between the first and third said portions of said frame structure; brackets each having one end pivotally mounted on said rod and extending rearwardly therefrom; an axle supported in the other ends of said brackets; ground Wheels mounted on said axle and a means for fixedly adjusting said Wheels for tilting said frame structure relative to said main supporting Wheel.

In testimony whereof, I afiix my signature.

AUGUST FRITS-CH.

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