US1133887A - Level. - Google Patents

Description

J. E. SATTERPIELD.

LEVEL.

APPLICATION FILED MAR. 2, 1914. I 1,1 33,887., Patented. Mar. 30, 1915.

j Snow do; H 75 IESATTE F/ELU NITED STATES PATENT. OFFIC JOHN E. SATTEBI'IELD, OF BROWNWOOD, TEXAS.

LEVEL.

carpenters and other mechanics which is reliable and accurate in its operation, strong and durable in construction and may be produced at small manufacturing cost.

The invention has for a more specific object to provide in an instrument of the above character, a dial plate or annulus, and improved means for mounting and securing the same upon the body of the level.

The invention has for another object to provide a dial member and fasteningmeans therefor cast or integrally formed in one piece and provided with means for properly positioning and mounting the double pointer.

With the above and other objects in view as will become apparent as the description proceeds, the invention consists in certain constructions, combinations and arrangements of the parts that I shall hereinafter fully describe and claim.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a side elevation of a level constructed in accordance with the preferred embodiment of my invention; Fi 2 is a section taken on the line 22 0 Fig. 1. Fig. 3 is a section taken on the line 3-3 of Fig. 1.

Referring in detail to the drawing, 5 designates a stock or base preferably constructed of hard wood. This base is provided in one edge and centrally thereof with a semicircular recess indicated at 6.

The dial member is in the form of an annulus 7 of brass or other metal which is suitably graduated upon its opposite faces as at 8. formed uponvits outer edge or is cast with a circumscribing band 9, the width of-which is substantially equivalent to the thickness Specification of Letters Patent.

This annulus 7 has integrally Patented Mar. 30, 1915.

Application filed March 2, 1914. Serial No; 321,944.

of the stock or body 5, of the instrument. One half of this band is adapted to be arranged within the recess 6 and seated against the wall thereof. At diametrically;

opposite points, the band 9 is formed with laterally extending attaching arms 10 which are adapted to be rigidly fixed by screws or analogous fastening elements 11 to the edge of the stock 5.

Upon the opposite edges of the band 9,

inwardly extending radially disposed arms 12 are integrally formed, said arms when the dial plate is arranged in proper position upon the stock 5 extending upwardly from the edge of the recess 6. The extremities of these arms are provided with openings which are adapted to receive the axis 13 of a pointer 14. This pointer at one end -is enlarged to constitute a weight 15 while at the opposite end, said pointer is forked to provide spaced tapering points 16, the extremities of which are disposed upon opposite sides of the graduated annulus 7. The graduations of this annulus upon one side or the other of the zero mark indicate the number of feet that the lower end of a 12-foot rafter or other part upon which the mstrument is placed must be raised to dispose the same on a horizontal plane. It is obvious that this annulus may be divided off to indicate the degrees of a circle and thereby indicate the degree of inclination of the part to which the instrument is applied.

From the above description of my invention, the manner in which the several parts are to be assembled will be readily understood. The axis 13 of the pointer is of course mounted to rotate in the ends of the arms 12 and as the weight 15 acts by gravity to maintain the pointer in a vertical position, it will be obvious that when the stock or body 5 is disposed out of horizontal plane, the tapering points 16 of the indicator will swing around over the graduated faces of the annulus 7, thus enabling the instrument to be read from either side and the degree of inclination of the object quickly and accurately determined. By the provision of the band 9extending around the dial member, the graduated faces thereof are to a certain extent protected so that the graduation marks will not be obliterated, by the frequent engagement of tools or other metal objects therewith. By forming the dial member and its attaching means in one piece, it will be manifest that the device can be produced at very small manufacturing cost. The same is also very durable as well as highly serviceable and convenient in practical operation.

While I have shown and described the preferred construction and arrangement of the several elements employed, it will be understood that the invention is susceptible of considerable modification therein and I therefore reserve the privilege of resorting .to' all such legitimate changes as may be fairly embodied within the spirit and scope of the appended claims. v 7

Having thus described the invention, what is claimed is:

The combination with a lbody centrally provided with a recess in one edge, of an annular dial plate having a circumscribing band integrally formed upon its outer edge and projecting from the opposite faces thereof, inwardly extending radially disposed arms integrally formed upon the opposite edges of said band, a weighted indiits ,ends between the inner ends of said arms 5 and having its other end disposed in spaced relation to the inner edge of said dial plate, and attaching arms integrally formed upon said band and extending therefrom in a plane including. the pivot axis of the indieating pointer, said arms being secured upon one edge of said body.

In testimony whereof I hereunto aifix my signature in the presence of two witnesses. JOHN E. SATTERFIELD. Witnesses:

S. J. WHITEHEAD, CLAUDE E. STAGGB.

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