US1004084A - Surveyor's combination grip and level. - Google Patents

Description

, A. ROGERS. SURVEYORS COMBINATION GRIP AND LEVEL.

APPLICATION PI LED iEB.1 5, 1910.

Y Patented Sept,

A w/r/vsssss Arron/115x BEST AVAILABLE COPY UNITED STATES PATENT orricn.

ALEBERT ROGERS, OF CORONADO, CALIFORNIA..

SURVEYORS COMBiNATION GRIP AND LEVEL.

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To all whom it may concern: I Be it known that I, ALBERT Romans, a citizen of the United States, and a resident of Coronado, inthe county of San Diego and State of California, have invented a-new and useful Improved Surveyors Conibii'iation Grip and Level, and the following is a clear and exact description thereof, reference be-,

. tageons on rough and hilly ground and the grip and level.

level. The body portion is shaped objects are to provide a means for. snlriectiiig the chain to an equal tension in every case and to indicate the number-oi degrees the chain is from the horizontal each time, to dispense with the hand level, to economize time, labor and expense in chaining.-

ll'ith these and other objects which will appear in the detaildescription my inven-, tion consists of the construction and ariwingement of parts hereinafter described and more particularly set forth in the acconr panying drawings in which:

Figure 1 is a. side elevational view of my Fig.2 is a. central longitudinal sectional view thereof and Fig". 3 an elevational view of the portion with all the removable parts removed aboveitheline ..\--ll in Fig. 2.

Similar chaactersof reference refer to similar parts throughout the several views.

The chain attachment 1, the bubble tube 2,.the protractor 3, tension scale- 4, degree scale on the body top 5, and handle (3, constitute the principal parts of my grip and as sh own best in Figs. 1 and 3 and is provided with a handle 6 which is providedwith finger hole into which may be inserted two or more tingers as in an ordinary surveyors chain grip.

' To this handle is securely attached slide 6 which extends into the bodyportion and is which is a portion of the tension tale and which rests against said slide 6., the body portion being shaped at this plane as shown best in Fig. 3 to provide for said spring; 'The upper edge of 'said'shde 6 is provided.

provided with two extending lugs 6" and 6" adapted to manipulate a special spring 4- Specification of Letters Patent. 193111931 179 Sept. 26. if}: Application filed February 15, 1910. Serial No. 544,025.

and the teeth 6 in said slide being in engagement withscale index 4 revolves it and it is provided with numerals 1, 2, 3, and so forth, which said inniirrals will appear in the hole li provided in the taco of the body for that purpose. Scale index t rests on said slide (3 and. iii a recess in the body. This scale index is for the purpose of indicating the number oi pounds tension on the chain. 7 represents a small projection in the body against which spring 4t rests and which is for the purpose of a sup ort for said spring.

On the lower side oi. the body is provided ahole 8 adapted for one orinore ot' the fingers of one of the hands ottthe chainniau. I This is for the purpose of adpisting the grip to desired position. and is practically the same in the ordinary chain grip.

is chain attachn'ient l, which is annulariii shape and titted into a plate 1, said plate being on the'rplane of the top surface of the body.- (hain attarhii'iciit 1 is provided with a slot. adapted to recei e and securely hold chain 1". ficlow said body and aroundsaid attachment 1 is a piece 1" adapted to hold said attachment 1. iii the position shown in p Adjacent to said handle 6 and centrally located the drawings, but. to allow it to revolve in said piece 1", it beine supported onv its bottom by the surface oithespriug and body portion. ()n the upper side of said grip body is providml a recess 3 on the inner surface of whicn is provided a. protractor 3 which in turn is provided with a. level bubg position will show accurately oii-the protract or the number of degrees frointhe horizontal. The face on said grip and level is also provided with a. degree scale 5 divided into sections, the chain attachment 1 being cmiceiitric with said scale .The body portion of my grip and level is covered with thin. sheet 'metal whichliolds the several parts intact. i

- It will be readily seenv that with this 0011-.

struction, I have a combined grip and leyl by the use of which chaining may-be done on inclined surfaces and the chain be easily kept in a horizontal position, that it may at all times be subjected to the sametension. This is acquired by pulling the grip until the chain registers tlr same number of pounds on the scale and while in that .position the bubble tube Qbeing raised to a horizontal position will give the aetua-l num- .'ber of degrees the chain is from the horizontal.

The manner of using my grip and level is as followsz-The operator places two or J5 piore lingers in the handle 6 and the chain as attached. to chain attachment :1 'as shown in Fig. 1. He then proceeds tochain, draw- I ing the handle to a certain tension as indicated by the tension scale at hole 4:. The grip is held in position by the operators other hand, the fingers being inserted in hole 8; the chain is drawn across the face of the grip horizontally, then the bubble tube is manipulated to the horizontal plane by means of a key on square piece 2, which will give the number of degrees the chain is from the horlzontal.

Having thus described my innxntion What I claim as new and desire to HCdl't? by Let- BEST AVAILABLE COPY grip and 2. A surveyors combinatio \ided with concentrically with said degree scale, a tension scale, a movable handle in connection therewith, a level bubble tube pivoted concentric'ally with said "protractor and gear and pinion means *for rotatably adjusting said bubble tube, all substantially as set forth. i

3. A surveyors combination grip and level, comprising a body portion composed of several parts and provided with a graduated degree scale on its 'face and having a recess therein, a gn'otractor in said recess, a handle provided with a slide adapted to slide in said body, a spring connection with said slide for regulating the number of pounds of tension applied, "means for indieating said tension, :1 frevolubl'e chain attachment mounted in said body portion eoncen- 'trically located with respect to said degree scale, a level bubble tube in said above named recess adapted to operate concentrirally with said protra'ctor, and gear and pinion means in connection with said level bubble tube for rota'tably adjusting the same upon the face of said grip and level, all substantially as set forth. I

In testimony whereof I hereunto subscribe my name in the presence of two subscribing witnesses.

ALBERT noGERs.

Witnesses HERBERT N. NEALE, Gnonoic T. Rooms.

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