US2276153A

US2276153A - Calculating meter for road building

Info

Publication number: US2276153A
Application number: US256804A
Authority: US
Inventors: Robert E Burnham; George V Burnham
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-02-16
Filing date: 1939-02-16
Publication date: 1942-03-10
Anticipated expiration: 1959-03-10

Description

March 10, 1942. R. E. BURNHAM E'l AL 2,276,153

CALCULATING METER FOR ROAD BUILDING Filed Feb. 16, 1959 ,zz g/ RJQB urnham aVlBurka m m Patented Mar. 10, 1942 2,276,153 CALCULATING METER roa ROAD nmnfmo Robert E. Burnham, Hartshorne, Okla, and George V. Bur, Whitewright, Tex.

Application February 16, 1939, Serial No. 256,804 1 Claim. (Cl. 33-215) This invention relates to a; calculating meter for road building, and it is an object of the invention to providea device of this kind to be employed in determining the degree of angle across or transversely of the roadway and which can also be employed with equalfacllity to calculate the depth of bar ditch and the amount of fall per foot. V

Another object of the invention is to provide a device of this kind adapted to be mounted upo a grader and which operates under the action of a pendulum and wherein the meter is so constructed and arranged as to enable the desired calculation to be computed either to the right or left.

The invention consists in the details of construction and in the combination and arrangement of the several parts of our improved calculating meter whereby certain important .advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as willibe hereinafter more fully set forth.

The novel features of our invention will hereinafter be definitely claimed.

In order that our invention may be the better understood, we will now proceed to dmcribe the same with reference to the accompanying drawing, wherein Figure 1 is a view in front elevation of a calculating meter constructed in accordance with an embodiment of our invention;

Figure 2 is an enlarged fragmentary sectional viewtaken substantially on the line 2-2 of Fig. 1;

Fi ure 3 is a detailed sectional view taken substantially on the line 3-3 of Fig. 2.

As disclosed in the accompanying drawing, C denotes a casing of desired dimensions and which is adapted to be placed upon the frame of a grader substantially parallel with the rear axle at a point rearwardly of the blade cut.

intersecting the casing and disposed through and held by the front wall I and rear wall 2 of grader may determine.

a rock arm 8 of desired length and secured to the lower portion of this arm 8 is a weighted member or poise which will readily swing to the right or left as the transverse tilt of the The

bolts

3 and 4 extend beyond the front wall I of the casing C and hold in a position overlyingthefront wall a plate Adhesively or otherwise secured to the outer face of this plate ii] is a dial IL, The bars 5 also freely support a shaft l2 bridging the space between the bars 5 and extending outwardly thru the front wall I of-the casing C and through the plate ill and at the axial center of the dial ll. Fixed to the outer or extended end portion of the shaft I2 for rotation therewith are the oppositely directed elongated indices or points M.

The shaft it between the members 5 has fixed for rotation therewith a pulley l5 and winding upon this pulley [5, as at It, is the central portion of a flexible member I! which is also extended around the pulley I. The flexible memher I! has its lengths crossed at a point between the pulleys I and it so that upon rotation of the pulley I desired rotation of the pulley I5 is also accomplished.

The dial H is provided on its outer or exposed face with three concentric circles l8, l9 and 20. This outer face of the dial H is also provided with a series of radial lines 2! extending from substantially the center of the dial II to the outer annular lines 18 and midway between adjacent lines are the radial lines 22 which extend from the inner circular line to the outer cirthe casing are the

bolts

3 and 8. These

bolts

3 and 4 are spaced apart in a direction lengthwise of the casing C with the bolt 8 at a desired point below the bolt 3. a

The

bolts

3 and 4 provide a support for the parallel bars {disposed on a downward incline as determined by the relative relation of the bolts 3 and l. The upper portions of these arms 5 freelysupport a shaft 8 intersecting the space between the arms 5, and fixed to this shaft 6 between said armsj is a relatively large pulley I.

cular line It.

Associated with the outer annular or circular line it are the angle degree graduations 23 consecutively numbered to the right and left from the uppermost or top zero point 24. The graduations 23 ccacting with the indices or pointers M to indicate degree to angle of the roadway in a direction crosswise or transversely thereof and which calculation is obtained. of course, in accordance with the extent of side tilting movement of the grader.

The intermediate annular or circular line I5 is provided with the suitably positioned indications 25 whereby may be readily calculated the depth of the bar ditch based on a six feet rear wheel width. These indications, however, can be readily computed in connection with other wheel widths.

line 20 are the indications 26 whereby may be Depending from the shaft 6 and fixed thereto is to readily registered the drop in inches per foot.

holding engagement with the keeper 3| carried by the front wall I of the casing C. The casing C is adapted to have in the lower portion thereof oil of a consistency to stabilize the pendulating movement of the arm 8 and particularly to pre- I vent excess swinging on rough ground,

From the foregoing description it is thought to be obvious that a calculating meter constructed in accordance with our invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that our invention issusceptible of some change and modification without departing from the principles and spirit thereof and for this reason we do not wish to be understood as limiting ourselves to the precise arrangement and formation of the several parts herein-shown in carrying out our invention in practice except as hereinafter claimed.

We claim:

A calculating meter for road building comprising a casing having front and rear walls,parallel bars within the casing, bolts disposed through the front and rear walls of the casing and through the end portions of the bars for supporting the bars within the casing, said bolts extending beyond the front wall of the casing, a dial plate supported by said extended portions of the bolts, a shaft rotatably supported by the bars and bridging the space therebetween, said shaft extending through the front wall of the casing and through the dial plate, an index carried by said shaft and outwardly of the dial plate, a second shaft rotatably supported by the bars and bridging the space therebetween, pulleys mounted on both of the shafts for rotation therewith, a pendulum carried by the second shaft, and a flexible connection' winding upon both of the pulleys but in reverse directions whereby the pulleys are in driven connection.

R. E. BURNHAM.

GEORGE V. BURNHAM.