US2973535A - Brush construction - Google Patents

Description

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United* States Patent() n BRUSH CONSTRUCTION Andrew J. lay,.5444 Lippincott Blvd., Flint, Mich.

Filed Jan. 1s, 1959, ser. No. 781,066 z'claims. (cl. 15-78) This invention relates to brush construction, and particularly to brushes which are adapted for attachment to tractors to be used in brushing the ground surface after grading, conditioning the ground for planting.

An important object of the invention is to provide a brush of this character which is provided with runners or shoes that lcontact the ground in advance of the brush bristles, means being provided for adjusting the runners or shoes with respect to their support, to adapt the brush for -a` particular job, and to elevate the brush during the moving of the brush from one location to another. f

Another object of the invention is the provision of means for hingedly mounting the runners or shoes on the brush head, whereby the runners or shoes may be swung upwardly to clear the supporting surface, permitting they brushes to rest squarely on the bristles of the brush, for effectively sweeping road surfaces under predetermined conditions.

Other objects will in part be obvious and in part be pointed out as ;the description of the invention proceeds, and shown in the accompanying drawings.

In the drawings:

Figure l is aplan view of a brush and attaching frame, constructedl in accordance with the invention.

Figure 2 is afront elevational view of the device.

Figure 3 is a `sigle elevational view of the brush.

Figure 4 is vaglongitudinal fragmental sectional view taken on line of Figure l of the drawings.

Figure 5 is a sectional view taken approximately on line 5-5 of Figure l of the drawings.

Figure 6 is a sectional view similar to Figure 5, with the runner or shoe illustrated in itselevated position.

Figure 7 is a -sectional view through a modified form of attaching bracket.

Figure 8 is a; sectional view taken on line 8--8 of Figure 7.

2,973,535 Y.' Patented Mar. 7, 1961 ICC a rigid support between the bar 14 of the brush back and inverted channel bar 12.

'A pair of securing bolts 16 extend through aligning openings in the channelv bars 12and 14, securing the bar 14 against movement longitudinally of the channel bar.

The bar 1-4, as better shown by Figures 5 and 6 of the drawings, supports the bristles 17 of the brush, which are secured within the bar 14 in any conventional manner.

Referring to the drawings in detail, the brush com- The frame also includes a center bar 10 that has a one of its ends welded to the tubular bearing 6, at 11, the opposite end thereof being welded to the inverted channel bar 12 that has inwardly extended longitudinal flanges 13, -as clearly shown by Figures 5 and 6 of the drawings.

This inverted channel bar 12 provides a support for the brush head which includes a bar 14 of a length equal to the length of the inverted channel bar 12, the bar 14 having grooves 15 disposed in the longitudinal front and rear edges of the bar, which grooves 15 accommodate the inwardly extended longitudinal anges 13, providing Secured to the rear edge of the inverted channel bar 12, are brackets 18, which brackets provide supports for the hinges 19 to which the shoes 20 are secured, the runners or hinges having strap members 21 that have inwardly turned flanges 22 that fit under the brackets 18, as better shown by Figure 5 of the drawings, bracing the runners or shoes 20 against lateral Strain.

The `reference character 23 indicates a vertical post that is provided with a ring 24 adjacent to the upper end thereof, which ring affords means whereby a suitable cable or rope may be attached to the post 23 for raising or lowering the brush as required.

As shown by Figures 7 and 8 of the drawings, the brackets 18 are provided with aligned openings in the upper and lower walls thereof, in which the upper ends of the runners or shoes 20 are mounted, the runners having openings 21' for the reception of the securing bolts 22 that extend into said brackets securing the runners orshoes in their positions of vertical adjust ment.

From the foregoing it will be seen that due to the construction shown and described, I have provided a brush which may be readily and easily attached to the tractor for brushing loose soil in conditioning the soil for planting, or the brush may be used in removing and brushing foreign matter from road surfaces.

It will also be noted that because of the construction of the runners or shoes 20, the runners may be adjusted vertically with respect to the brackets 18' by positioning the bolt 22' in the desired opening of the hinge 21 as shown by Figure 7 of the drawings.

Having thus described the invention, what is claimed is:

1. A pivotally mounted brush support comprised by a frame including a shaft, a forward tubular bearing surrounding said shaft, ta rear bar comprised by an inverted channel adapted to grip the brush between its side flanges, side bars uniting the tubular bearing and the rear bar, a bracket having a parallel top and bottom and aligned holes in said top and bottom, a hinge pivotally securing the bracket to the forward flange of the in- 4verted channel, runners having cylindrical upper ends and diametrically positioned holes therethrough for the reception of locking bolts, said cylindrical upper ends of the runners being received in the holes in the top and bottom of the bracket, and integral right angle sections at their other ends adapted to underlie the bristles of the brush gripped by the inverted channel land travel over the surface being-swept.

2. A pivotally mounted brush support comprised by a frame including a shaft, a forward tubular bearing surrounding said shaft, a rear bar comprised by an inverted channel `adapted to grip the brush between its side flanges, side bars uniting the tubular bearing and the rear bar, a bracket having a parallel plane top and bottom, a forward side uniting the latter land having aligned holes in the top and bottom, va hinge secured to the top of said inverted channel and the top of said bracket and pivotally securing the bracket to the channel with the bottom of the bracket abutting the forward flange of the channel, runners having cylindrical upper ends and diametrically positioned holes therethrough for the reception of locking bolts, said cylindrical upper ends of the runners being received in the holes in the top and bottom of the bracket, and integral right angle sections at their other being swept.

rences Cite'd in che Ele of this vpatent UNITED STATES PATENTS Thiel Dec. 6, 1921 4 Starrett ...1---- May 25, 1926 MacGregor Apr. 14, 1931 Allen Oct. 27, 1942 Fray July 11, 1950 Fraga Nov. 18, 1952 Kuhary et al. Aug. 3, 1954 Swanson Apr. 26, 1955

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