US1119450A

US1119450A - Measuring instrument.

Info

Publication number: US1119450A
Application number: US79810013A
Authority: US
Inventors: Elmer O Parr
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-10-29
Filing date: 1913-10-29
Publication date: 1914-12-01
Anticipated expiration: 1931-12-01

Description

E. O. PARR.

MEASURING INSTRUMENT.

APPLICATION FILED 0CT.29,1918.

1,1 19,450, Patented Dec. 1,1914.

I A \o U U E'- \J T l I E El-wuvzw'toz 6w E0. PARFi 4 r VVUK 8?: W W anemic! E Tils'rn'rns ELMER 0. PiABIR, F GLASFORD, ILLINOIS.

MEASURING INSTRUMENT.

Application filed October 29,

, panying drawings.

This invention eomprehends certain new and useful improvements in measuring instruments and has for its primary object to provide a device of this character which may be readily adjusted and which may be placed in compact form when not in use.

Another object is to provide a device of this character which may be composed of a plurality of telescopic sections and which will be extremely simple and cheap to manufacture.

Another object is to provide an adjustable measuring instrument which may be employed as a try-square and which will be constructed in such manner that one arm thereof may be adjusted longitudinally and at any desired angle to the remaining arm.

A further object is toconstruct the instrument in such manner that the sections of the adjustable arm may be readily moved within one another for a limited distance in either direction and when in their innermost position may be folded against and parallel to the other arm of the device, the outer longitudinal edges of the sections of the adjustable arm being in alinement.

A still further object is to generally improve and simplifyflthe construction and operation of devices of this character and increase the efficiency thereof without increasing the cost of the same.

With the above and other objects in view, my invention consists in certain novel constructions, combinations, and arrangements of parts to be hereinafter more fully described, claimed, and illustrated in the accompanying drawings, in which,

Figure 1 is a plan view of the tool extended; Fig. 2 is a similar view with the tool in closed position; Fig. 3 is a fragmentary bottom plan view of the adjustable arm; Fig. 1 is a fragmentary side elevational view of the stationary arm; Fig. 5 is an enlarged detail perspective View of one end of the inner section of the adjustable arm; and Fig. 6 is a sectional view on the line 6-6 of F i". 2.

Specification of Letters Patent.

Patented Dec. 1,1914.

1913. Serial No. 798,100.

Referring more specifically to the drawings in which similar reference characters designate corresponding and like parts throughout the several views, 1 designates the stationary arm or handle which is preferably of rectangular form in cross section and which has one end beveled, as shown at 2, with the inner side of the section cut away at this end, as shown at 3.

The adjustable arm of the instrument is composed of a plurality of telescoping sections numbered 4, 5, and (3, said sections being substantially .U-shape in cross section with the free marginal edges of the lower walls in alinement, the free marginal portions of the upper walls of the sections being inclinedforwardly and downwardly and terminating at a predetermined distance above and inwardly of the free longitudinal edges of the bottom walls of the sections. The inclined front portion of eachsection is provided with suitable graduation marks 7 upon its upper face and along its forward edgeto indicate inches and fractions of inches, whereby the length of the adjustable arm may be readily adjusted and the forward marked edge thereof employed as a rule of any desired length.

The first or inner section 4 ofthe adjustable arm of the tool is provided with a pair of rearwardly directed ears 8 formed by cutting the rear vertical portion of said section near its inner end and bending the material outwardly, as will be clearly understood. The pivot pin 9 is passed through the ears 8 and the upper and lower portions 1 of the stationary arm or handle 1, at a suitable point along the inner edge of said stationary arm or handle 1 a short distance from the forward'end of the same, as will be readily understood by referring to the drawing. It will also be seen that by connecting the adjustable and stationary arms in this manner, said adjustable arm may be swung to position against the inner face of the stationary arm or handle 1 and parallel with the latter when the device is not in use. Further, the adjustable arm may be swung at any desired angle with respect to the stationary arm or handle 1 and the angle indicated by the position of the inner forward corner of the stationary arm or handle 1 upon the scale 10 upon the upper face of said first or inner section 4: of the adjustable arm.

Each of the sections 5 and 6 of the adjustrected tongue l3'formed on the lower edgeof the inclined front portion of said section, for the purpose of forcing the slidable sections outwardly for a short distance in order that they maybe grasped and pulled up wardly until the stop lugs ll reach the outer ends of the slots 12 withinwhich they are n e It w l b under t od th th tongues 13. are preferably located near the inner ends of the slidable sections and. are

arranged in such mannerthat when the d e vice is in closed position; as shown in F ig. 2, said tongues l3 will be spaced from one an} other in order that they be readily. en? gaged separately, whereby either of the sec? tions 5 and'6 maybe readily forced out wardly and it will 'be understo od that while the

sections

4,5, and 6 may be of any sired length, I prefer to. have. each section 4 preferably substantially six' inches in length and have the-length ofthe slots 12 so that when the sections 5 and 6 are in their eX-v tended positions, each of said sections 5 and 6 extends into the section within which it slidesfor the distance of substantially one inch, the graduation marks on sa id sections 5 and -6' bein g regulated accordingly to form the complete'rule when'the sections cfthe adjustable arm are extended to their outermost positions.

The adjustable arm may be readily regulated in adjusted position with respect tothe stationary arm or handle 1 by any suitable ilock nut 14: threaded uponone end of t he pivot pin 9. If'desired, a spirit level 15 maybe positioned in the-stationary arm or-handle'l-as will be clearly understood; \Vhile I have shown the preferred embodiment of my invention, it will be understood that minor changes in the details ofconstruction and arrangement of-par-ts may be made with-in the scope of the appended claims without departing from thespiritof my invention or sacrificingany of the ad vantages of the same.

What I claim is 1. A device of the character described comprising a plurality of telescoping sec- ;tions, each of said sections being substantially U-shape in cross section, the free longitudinalmarginal portions of the-lower walls of said sections being in alinem ent.

2. A. device ofthe character described comprising a plurality of telescoping sec tions each of said sections being substan tially U-sha'pe in cross section, the free longitudinal marginal portions of the lower walls of said sections being in alincment, the free longitudinal marginal portions of the upper walls of the section being inclined downwardly and forwardly and terminating a predetermined distance inwardly of the lon al ed es o the. 5%? f l at th sections.

3. A device of the character described comprising a plurality of telescoping sections; each of said sections being substam tially U-shape in cross section, the free longitudinal marginal portions of the lower walls of said sections being in alinement, the free longitudinal marginal portions ofthe upper walls of the sectio ns'being inclined downwardly and forwardly and terminating a predetermined distance inwardly of the longitudinal edges of the lower walls of the sections, and means carried by the inclined portions of certainof the-sections adjacent their outer extremities whereby relative movement, may be impart-ed to the sections.

4. A "device of the character described comprising a plurality of telescoping sections, each of said sectionsbeing substan-. tially' ll-shap in 'cross section, the-free lengitu'dinal marginal portions of the lower" v ELMEB .Qe FARR: Witnesses:

Games of thiapatent may be obtained Zorflvc cents each. by addressing the? Commissioner ofi Batent s, Washington, D; C."