US1198721A

US1198721A - Level.

Info

Publication number: US1198721A
Application number: US4632415A
Authority: US
Inventors: William Roy Green
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-08-16
Filing date: 1915-08-16
Publication date: 1916-09-19
Anticipated expiration: 1933-09-19

Description

w 8. GREEN.

LEVEL.

APPLICATION FILED AUG. 19. 1915.

Patented Sept. 19, 1916.

Wee M? WILLIAM ROY GREEN, on TRINIDAD, COLORADO.

LEVEL;

Specification of Letters Patent. Patented Sept. 19, 1916.

Application filed August 19, 1915. Serial No. 46,324.

To all whom it may concern:

Be it known that 1, WILLIAM ROY GREEN, a citizen of the United States, residing at' Trinidad, in the county of Las Animas and State of Colorado, have invented new and useful Improvements in Levels, of'which the following is a specification.

This invention-relates to levels, and has for its primary object to provide a level of simple construction in which the vital parts may be readily removed or assembled for obvious reasons.

One of the objects of the invention is to construct certain portions of the level and form the same with graduation marks whereby the latter may be viewed by the observer in various positions.

Another object of the invention is the arrangement between the sets of graduation marks and the hands, the latter being so shaped as to simultaneously cooperate with the two sets of graduation marks.

A still further object of the invention is the novel manner in which the side members are secured together and the members as a unit respectively held against displacement within thebiidy by means of the cooperation between the annularly disposed peripheral edge portion of the members and the wall of the opening.

\Vith these and other objects in View the invention consists in the features of construction and the combination and arrange ment of ,parts hereinafter described and claimed, reference being had to the accompanying drawing, in which- Figure 1 is a side elevation of the level; Fig. 2 is a vertical sectional view on the line 22 of Fig. 1; and Figs. 3 and 4 are detail sections.

Referring to the drawing the numeral 1 designates the body of the level, which is shown as formed with a circular opening 2, the wall 3 of which is triangular shape in cross section as clearly shown in Fig. 2 of the drawing. Each of the circular side members and'5 are depressed in the course of manufacture at the point'6 to form annular grooves 7, the

concentric walls

8 and 9 of which are arranged at an angle to each other. The walls 9 of the side members tightly abut the walls3 of the opening and from this arrangement it will be seen that lateral movement of the side members is prevented when the screws 10 tightly draw the bottom walls of the grooves together. The walls 8 are provided with an annular serles of graduation marks 11, while the fiat body portions 12 of the side members are each provided .with an annular series of graduation marks-13. The hands 14, two in number, are so shaped and arranged as to s multaneously cooperate with the graduatlon marks 11 and 13, and to accomplish this the end portions of the hands are bent at an angle so as to overlie the walls 9'. The

hands 14. are mounted on the squared ends I 15 of the shaft 16 that isjjournaled in the side members. For preventing displacement of the hands from the shaft I mount in each end of the shaft a screw 17 the head of which abuts a washer 18 that in turn abuts the adjacent surface of an associated hand.

18 designates a weight moving between the side membersand which can be either formed integral with the shaft or secured thereto in any suitable manner. Circular glasses 19 have their peripheral edge por gagement with the edge portions of the side members.

From the foregoing description it will be seen that'l provide a simple device in whichthe parts are effectively assembled or displaced by simply removing a small number. of screws.

A very important feature of my invention which should be borne in mind is the relative arrangement between the graduation marks, the hands and remaining portion of the side members so that the graduation marks may be plainly seen fromany angle in which the observer may be. By tightening up the screws 10 it will be seen that the side members are brought into tight engagement with each other for preventing the ingress of moisture to the space in which the weight 18 works and at the same time the inclined walls 8 are brought into tight contact with the wall of the opening for the purpose previously described.

If found advantageous in practice the degree marks may have printed adjacent thereto the number of inch s incline to the foot as clearly shown in F1 1 of the draw- Having thus described. my invention, 1 claim:

l. in a level, a body having a circular opening, a pair of circular side members each having a flat body portion provided with graduation marks, inclined peripheral edge portions and an intermediate portion arranged between the edgeportion and the body portion and at an angle thereto, said intermediate portion being provided With graduation marks, a Weighted shaft journaled in said side members, hands detachably secured to the ends of said shaft, each of said hands having its end portions bent at an angle so as to cooperate with the intermediate portion of its associated side memher.

In a level, a body having an opening formed by two Walls arranged at an angle to each other, side members having angularly arranged peripheral edge portions engaging the walls of the opening, screws for detachably securing said members together, and weighted rotatable means associated eaf/a1 with said side members for giving visible indication,

3 In a level, a body having an opening, formed by two Walls arranged at an angle to each other, a pair of side members, each being stamped to have an annular groove, the concentric Walls of which are arranged at an angle to each other and the inner of which is provided with graduation marks, While the outer wall abuts one of said first mentioned Walls, a shaft journaled in said side members, each of said side members being provided with an annular series of graduation marks arranged concentrically of said shaft, and hands secured to the ends of said shaft and having their end portions bent at an angle, said hands being adapted to simultaneously cooperate with the first and second mentioned graduation marks, and a glass plate for each member having the'edge portion secured to the other concentric Wall formed by said groove.

p In testimony whereof I ailix my signature in presence of a Witness.

WILLIAM ROY GREEN.

Witness Bnnnnrr S. Jones.