US831191A - Gage. - Google Patents

Description

PATENTED SEPT. 18, 1906.

F. SGHUBERT.

GAGE.

APPLICATION FILED APR'.20,1905.

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Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed April20,1905. Serial No 256,597.

To all whom it may concern:

Be it known that I, FREDERICK ScHUBEn'r, a citizen of the United States, residing at Sellersville, county of Bucks, State of Pennsylvania, have invented a new and useful Improvement in Gages, of which the following is a specification.

This invention relates to improvements in the movement of steam, air, and other gages, and has for its objects, first, the construction of a movement which is entirely mounted on the post, so-called, from the front only independent of the case; second,'to simplify the construction and assembling of the gage, and, third, to provide a stop for the segment and dispense with the use of a stop-pin, which under certain conditions is fatal to the move ment and to the correct calibration of the gage. I accomplish these purposes by my nnproved gage, which is fully shown in the accompanying drawings, in which-- Figure 1 is a front view of a gage, the dial and center of pointer being broken away to show the mechanism. Fig. 2 is a side view of the lo -ver part of Fig. l, the case being shown in central section and partly broken away. The Bourdon spring is. ren'ioved to more clearly illustrate the movement. Fig. 3 is a perspective view of the lower movement-post and adjustable arm broken away in Fig. 2.

Similar refih'enee characters indicate like parts in tlte several views.

1 is the usual post, upon which the Bourdon spring 2 is mounted. 2 is the case. The post is provided with an upwardly-extending flange 4-, positioned at the rear side, against which the movement-supporting upright 5 is fastened in position by screws 6 6. The upright 5 has an arm 7 near its upper end where it forms a back plate, the front plate 8 being of the same outline, the two plates 7' and 8, together with the upper and lower movementosts, respectively, 9 10, forming the housing for the movement proper. The two plates are pierced with holes to form bearings for the pinion-shaft 11 and for the novel segment l3.

1.2 is the hand or pointer.

' The segment has teeth 14 on its periphery.

which mesh with the pinion 15. On the free end of the segment is an extension, which I term a sector, 16, having a curved slot 17.

The free end of the Bourdon spring has a link 18, pivotally connected by means of a screw 19, the lower end of the said link also being provided with a screw 20, which is adjustably set in the slot 17 of the sector.

On the lower post 10 I mount an arm 21, which is fastened in a predetermined position by means of a set-screw 22 or otherwise. In the end of this arm there is an adjustmentscrew 23, which limits the downward movement ofthe sector or extension.

24 is a hair-spring tu return the hand to the Zero-mark;

Such being the construction, the operation is as follows: All the parts of the movement are made interchan eable and in quantities by suitable tools and-assembled by unskilled hands. The Bourdon spring is fastened on the post 1 in the usual manner, the post being secured to the case 3 by screws. The 0 eration of the movement can be tested in t e hand, and the stop+arm is so set that the position asshown in Fig. 1, the extension or sector striking the screw 23. The movement is then set in the case and mounted on the flange 4 of the post by screws 6 6, and the link 18 is connected with the sector 16, the adjustment being made in the slot 17, sot-hat there will be no lost motion of the Bourdon spring. Any required delicate adjustment to bring the segment in its proper place is made by means of the screw 23. The dial 25, hand-glass 26, and ring 27 can then be put on the gage-case and the gage is ready for use.

of the usual stop-pin on the dial-plate, any sudden variation in the pressure or vacuum which would have a tendency to throw the hand beyond the zero-mark does not affect the position of the pointer or hand, nor does it injure the movement as described. Where a stop-pin is used on the dial, thestrain is on tl 1o segment and pinion as well as on the hand, and when the hand-suddenly flies back and strikes the pin the delicate teeth of the pinion or segment are injured, or else the hand is bent and loosened from the shaft and a false indication is bad when gage is in operation. In the use of my improved gage this cannot happen. By mounting the movement on one side of the post it is easily placed or removed, besides permitting an air-space between the housing and the case, so that any variation in temperature does not affect the movement.

The stop for limiting the travel of extension-arm or sector in one direction maybe fastened to the case as shown by the angletoothed section of the segment will stand in 'It Wlll be noticed that, owing to the absence IiO plate and screwfindiezitsd hydottediines in in gages, the eembinatioii 0'1 s s- Figs. 1 and 2) without departing from the spirit Of my inventicn,

I believe that I am the first inventor to use 5 an adjustable limit-step m prevent strain on the movement, and therefore desire its claim it broadly 7 Such being niy iiwention, what 1 eiaim as new is tion of a curved Bourden spr ng, a pinionwheel and s pointer pivoied subsmntiaiiy centrally 01" said spring, a segment having teeth on its pwipheyy engaging; said Dini )1';, an integral sector ezxrriedhpon the free end 0f said segment and having a eus'ved siet in the sector, a iink pivots; connected to said spring, a serew passing ihreugh said link and through the curved slot in the sector, an z1 ijusmhie stop-pin engaging said seeker to limit the movement thereof and am independenfly-:u'ijustablv bracket eairying said stop-pin.

1. In a movement fer eombinw ,warciiy-extezldii g flanged past, an upright mounted on said post, said upright hevm a in-tsmiiyextending arm near its upper en a shaft mounted in said upright, a segment hav ing an imegrsi seetor with a curved siet said segment being pivotaliy mounted on said arm, a, Bouwion spring, a link attached to ens end. of said spring, a. screw ean'ied hi the ofiher end sf said link and a-ssing threug the curved slet in the sector, em arm carried by seid first-named arm and adjustable thereon, and an fldjllSilIUfiBt-SOIG'W earned by the adjustable arm and serving as a stop for.

said sector.

in 'iestimony whereof I hsye signed my nainie to this specificsiien, in the presence of two subscribing witnesses, this 15th day of Ami-i, 1902i.

FREDERECKL SQHUBEETG Witnesses THEW M. :{JAWLER; Wflsim C. Laue.

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