US1303829A

US1303829A - vogkel

Info

Publication number: US1303829A
Authority: US
Publication date: 1919-05-13
Anticipated expiration: 1936-05-13

Description

G. A. VOGEL.

STOCK FOR SPIRLT. LEVELS.

APPL|cAT1oN FILED Aucsmlflsn.

Patented May 13,1919

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uswej. Wage@ 'NVENT "Wn-N ESSES r4 GUSTAVE A. VOGEL, 0F NEW BRITAIN, CONNECTICUT.

STOCK Foa SPIRIT-LEVELS.

Y Vthe stock or body, whichiis of Lbeam cross section, is constructed partly, of steel and partly of aluminum to insure lightness and strength and to eliminate the possibilityI of warping or bending.

The invention will be best understood from a consideration of the following detailed description, takenlin connection with the accompanying drawing forming part of this specification, with a further understanding that while -thedrawing shows several practical forms ofthe invention, the latter not confined to any strict conformity with the showing of the drawing, but may be changed and modified so long as such changes and modifications come within the scopeof the appended claims.

In the accompanying drawings Figure 1 is a side' elevation of a combined level and plumb constructed in accordance vsa ' Fig.` 1 o with the invention. s.

`\Fig. 2 lis an edge elevation thereof.

Fig. 3 is a sectional view on the line 3-3 of Fig. 1. Fig. 4 is a sectional View on the li'ne .4f-4 of Fig. 1.

Fig. 5 is a perspective view.A of the steel .plate constituting the stock. 1

Fig. 6 is a view similar to Fig. 5 showing a slight modification.

Similar reference characters indicate correspondin parts throughout` the several views in t e drawing.

Referring to the'drawing, A- designates the web portion, and-B andfC4 respectively the topand bottom vbarsor Hanges, the web and .flanges 'constitutinga stock o'f an I-beam cross section. The web ortion Ais pref.- erablymadelfr'om astraight steel, plate 10 having therein one or more transverse openings for receiving the bubble glass andbub'- ble glass carrier. i I

In the articular form of stockshown in fp the drawing, three openings are Specification ofvLetters Patent.

' plate Patented May 13,1919.

Application filed August 11, 1917. Serial 1Io.l1.85,780

provided, the center one being lemployed for a level glass, while the end ones are employed for oppositely arranged plumb glasses. `'The arrangement of the parts is such that no part of the level glass or level glass carrier, stands beyond the plane of the bars or flanges B and C, with the result that all parts are protected from injury when the instrument is laid upon its side.

The level glass carrier and each plumb y glass carrier comprises atubularcase 11, cut away at one side to provide-a sight opening 12, at the middle upper part thereof. 'The case 11 is formed with a flange 13. which is co-eXtensive therewith longitudinally of the same, although theflange may be in the form of ears. Through bthis flange 13, are passed fasteners 14, preferablyv screws, detachably threaded in the plate 10, VWhile within the case 11 is the bubble glass 15, of the usual construction. The plate 10 whichis made from steel is prefer'albly out and bent at its l longer edges teprovide the alternate oppositely extending lateral flanges 16, in this instance the major number of which are provided with holes or apertures 17, it being understood, of course, that if found desirable all of the flanges may be perforated. The

flanges 16 are anchored or embedded in the bars or flanges C, which are preferably made from aluminum, molded or cast about thev longer edges of the plate 10, with the anges 16 within said bars or rails.

In the molding or casting of thebars of flanges B and C, the metal will flow through the holes or apertures 17 and form a connec- -tion between the plate and thebars or flanges to insure the positive binding of said bars or flanges upon the plate.

The laterally extending flanges 16 of the plate 10, when anchored irs-,the bars or flanges B and C, materially strengthen the instrument. so as to avoid the possibility of the warping or bending of the plate 10 and thereby assuring maximumstiffness to the instrument. l v

' ln F'g. 6 ofthe drawing, there is shown 'a slight modification of stock in. which the 18 made from steel, is devoid of flanges at its longer edges, and near these straight 'edges 19 are formed .at intervals in the plate 18 holes ,or apertures 20 for thesecure anlos chorage of said edges 19 in the top andy b0ti edges `19 of the., plate 18 throughout :the

length thereof', and in this manner the said top and` bottom bars or rails will not become separated from the plate.

I From the foregoing itis thought that the construction and manner .of making the spirit level and plumb will be clearly under-A stood, and therefore, a more' extended explanation has been omitted.

What I claim is: a

1. In an instrument of the character described, a stock of an I-beam crosssection consisting of a steel plate having perforations at the longitudinal edges thereof, and

aluminum bars constituting flangesfor the stock cast about the4 perforated ledges of said plate, whereby said edges are embedded within the saidbars.

2. In an vinstrument of the character described, a stock of an I-beam cross section consisting of a steel plate having its longi-v tudinal edges flanged, and aluminum `b ars constituting the flanges for the stock cast about the flanl ed edges ofsaidplate, whereby said edge are.` embedded wit-hin said bars. l

3. In an instrument of the character described, a stock of an I-beain cross section consisting of a steel plate having its longitudinal edges flanged and perforated, and

aluminum bars constituting theflanges for A the stock cast about the perforated and flanged edges of said plate, whereby said edges are embedded within said bars.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.-

. Y hi s GUsTAvE A. VOGEL.

l mark. Witnesses:

' Moluus D. SAXE, ABRAHAM R. PoUzzEs.