US313872A - Berge - Google Patents

Description

(No1/101ml.)

J, KINDLEBERGER.

GLINDMETBR.

N0. 313,872. PatentedMar. 17, 1885.

Nrrn Sterns arnr erica.

JEFFERSON KINDLEBERGER, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF TO ALPHEUS Y'ALTER SCOIT, OF SAME PLACE.

CLIVNOMETER.

SPECIFICATION forming part of Letters Patent No. 313,872, dated March 17, 1835.

Application filed November S, i884. (No model.)

To @ZZ wibo/n, it 1mb/f concern-e:

Be it known that I, JEFFERSON KINDLE BERGER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State ot' California, have invented a new and useful Improvement in Clinometers, of Which the following is a specification.

My invention relates to that class of clinometers in which a pointer is actuated by a weight Io to indicate upon a graduated plate the inclination ofthe surface tested.

The object of my invention is to secure great sensitiveness vin the pointer, to overcome vibration, and to adapt my device for conven- I5 ient insertion in any level-stock or straightedge of sufficient size to receive it. I accomplish these objects my means ofthe device described herein, and illust-rated iu the accompanyng drawings, in Which- Figure lis a view of a level-stock fitted with my device. Fig. 2 is a plan view of the top ofthe same. Fig. 3 is a rear view of my device separated froin the stock. Fig. 4 is a vertical crosssection of the saine on the line m mi. Fig. 5 is a rear elevation of the graduated plate E and a section of the same on line mx. Fig. 6 is an elevation of the glass cup G and a section ofthe same on line y y. Fig. 7 is a View of the cap-piece C and a section of the same on line e e. Fig. 8 is an inside or rear View of the index-plate and blades.

Numerous devices have been heretofore constructed in which weights have been employed to actuate a pointer to indicate the degree of inclination upon a graduated plate; but the inertia of the weights heretofore used required a considerable change of inclination before the position of the pointer would be changed, and would cause the pointer to vibrate for some time after the clinometer had become stationary. To overcome the inertia readily and to prevent vibration, I use a fluid Weight to actuate the pointer, as hereinafter set forth.

To construct my device I provide a circular cup, G, of transparent glass, and tabrass cap, C, upon it, so as to retain any fluid placed in the cup. I then fasten a graduated plate,

F, upon a perpendicular cross the arms of which are thin blades D, equal in width to 5o the depth of the cup G. This plate with its blades is then mounted upon a pivot, P, projecting from the centerot'the inner side of the cap C, a hole, P', being provided through the center ofthe cross to receive it. The cup is then secured to a graduated annular plate, E, 5 of brass or other suitable material, the bottom of the cup facing the opening in the plate. An opening, Q, closed by a screw-cap, J, is provided in the cap C, through which sufficient alcohol or proof spirits is poured to lill the 6c vcup half-full. The screw-cap is then replaced, and my device is ready for insertion in its stock or straight edge. This is done by boring in the stock a circular hole of the size of the cup G, with its cap C, and countersinking a circle round it to receive the graduated plate E, which projects over the edge of the cup to receive the screws S, which 'fasten it into the stock. An opening is also made in the top of the stock, so that the pointer I can 7( be seen from that side. The cup with its plate is then secured in the stock by the screws S S. The opening in the top of the stock is covered with a plate of glass, and the device is ready for use. The perfect mobility of the i'luid causes it to change its position at the slightest movementot' the device, and acting upon the lower and the two horizontal blades ot' the cross, itactuates the pointer and the graduated circle to indicate the change of SC position, and as all waves are suppressed by the two horizontal blades, and. the fluid can only be slightly agitated by any motion, it comes to rest almost simultaneously with the stock. Theouter graduated plate, E, is marked off intoconvenient parts ot' a circle, and the innerplate, F, is also graduated, a portion of it, as at V, being marked as a. vernier plate,

to indicate, in connection with the plate E, degrees or smaller divisions, if desired. The 9c plate in the top of the stock is marked to indieate the point at which the pointer Will stand when the stock is level. The circle F and the blades ofthe cross should be thin, so that their weightwillvnot impede their movement.

This device can be accurately mounted in its stock by scribing aline at right angles across the stock and making the marks upon the circle E, indicating ninety degress and 1c one hundred and eighty degrees, coincide,

therewith. The upper blades attached to the pointer or needle may be dispensed with, as the fluid acts only upon the lower and the horizontal blades. The circle F may also be dispensed with, but care must be exercised to make the blades and the pointer accurate, and the blades should be made stiff enough to retain their position.

I do not claim the use of a uid confined in a circular chamber to indicate a level as being new; but

What I claim as new, and desire to secure by Letters Patent, is-

1. In a clinometer, an index or pointer mounted upon a pivot in a circular chamber and having one or more blades connected therewith, and placed in contact with a Huid contained in such chamber, substantially as set forth, whereby the motion of the fluid is made to actuate the pointer to indicate th angle of inclination.

2. A clinometer consisting of the following elements: the graduated annular'plate E, the cup G, cap C, pivot I), blades D, graduated circle F, pointer I, and the straight-edge A,

. all being in combination, substantially as and `for the purpose set'iorth.

3. In a clinometer, apointcr mounted upon a pivot and connected with a blade or blades placed in contact with a iiuid, substantially as shown, whereby the motion of the fluid in seeking its level is made to actu ate the pointer to indicate the inclination.

4. In a clinorneter, a movable graduated plate mounted upon a pivot in acliamber and having blades attached thereto, such blades being in contact with a Huid contained in such chamber, the plate being in combination with a stationary graduated plate and a straightedge, as shown, whereby the movementot' the fluid in seeking its level is made to actuate the movable graduated plate and change its position to indicate the angle of inclination.

5. In a clinometer, substantially as described, a chamber for containing the pointers and their actuating fluid-Weight, consisting ot' the glass cup G and the cap C, with its pivot P and the opening Q, for the purpose set for th.

JEFFERSON K INDLBERGER.

Witnesses:

Jas. R. TowNsnN'n, ALFRED I. ToWNsnND.

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