US783897A - Plumb and spirit level. - Google Patents

Description

No. 783,897. PATENTED FEB. 28,1905.

' P. H. SANGER.

PLUMB AND SPIRIT LEVEL. APPLICATION FILED JULY 1, 1904.

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PHl'LIP H. SANGER, OF ONAVVAY, lVllUltllGAN, ASSlGNOR TO It. M. V'VAL'JYON, (ll? ON A11 AY, il ilUlllGA N.

FLUWlH ND EiiPlFllT LEVEL.-

SPECIFICATION forming part oi Letters Patent No. 783,897, dated February 28, 1905.

Application filed July 1, 1904;. Serial No. 214,888.

To It who/It it mmu concern:

Be it known that l, Pmmr H. Sane an, a citizen oi the United States, residing at ()naway, in the county o'llrcsq ue isle and State ol Michigan, have invented certain new and useful .lmprovemei'its in Plumb and Spirit Levels; and .l do declare the 'lollowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a combined plumb ed in an obvious manner with convenience and and level.

The object of the invention is to provide a tool of this character whereby different levels may be quickly ascertained or determined and the bu bble-glasses accurately and conveniently adjusted. With this and other objects in view the invention consists of certain novel features of construction, COD'll'Jlllitl-lOTl, and arrangement of parts, as will be hereinafter more fully described, and particularly pointed out in the appended claim.

In the accompanying drawings, Figure 1 is a perspective view of a plumb and level embodying my invention. Fig. 2 is a longitudinal section of the same. Fig. 3 is a crosssection on the plane 01'' one of the sight-screws.

1 denotes the stock of the tool, which, in accordance with my invention, is provided with a longitudinal bore or sight-passage 2, at the ends of which are arranged sight devices 3, said devices consisting of transverse screws litted in screw-threaded holes 4-, from which they may be conveniently removed to enable the bore or passage 2 to be swabbed by a suitable cleaner when choked by dust or other foreignsubstances. By lookingthrough the bore 2 the operator after setting the tool in the position forming the basis of the leveling may level up one piece of work with another or iind ditferent relative levels in a convenient manner, as will be readily understood.

5 is the level-glass, and 6 the plumb-glass. The level-glass 5 occupies a recess 7 in the upper edge of the stock 1 and is exposed at the sight-orifice 8. plate 9, suitably secured by screws or other suitable 'lastenings 10. The plate 9 is pro- The recess 7 is closed by a 1 vided with the usual observation-slot l l and 5 has depending therefrom near one end of said slot a lug or boss 12, to one end ol which the glass 5 is pivotally connected, as shown at 13. The opposite end of the glass is supported by a spring let, litted upon a stem 15, and is beveled, as shown at 16. Aset-screw 17 is mounted in the stockl and engages this beveled end 16, whereby the glass is held against the pressure of said spring. By slacking or tightening up this screw the glass 5 may be adjust- 6O nicety to bring the bubble opposite its indicating-mark and held in adjusted position.

The plumb-glass 6 is similarly mounted, being mounted in a plate or frame 18, arranged 5 in a transverse opening 19 in the stock, said frame being pivoted at one (its upper) end, as indicated at 19, and having its opposite or lower end pressed in one direction by a spring 20. Opposite said spring 520the said lower 7 end of the frame 18 is beveled, as shown at 21, said beveled portion being engaged by a set-screw 22, carried by a plate 23, set within a recess 2% in the lower edge of the stock and. secured by screws This plate 25 is provided with a stem or lug 26, guiding and holding the spring 20. It will be seen that this construction enables the plumb-glass 6 to be adjusted and held in a similar manner to the glass 5.

Owing to the construction of the open or skeleton-like stock and the manner of mounting the plumb and level glasses therein the plumb-glass can be seen from either side and at an elevation above or below the instrument, 5 while the level-glass may be seen from either side above the instrument, thus allowing the user to plumb above his head without the use of a step-ladder or other means of elevation and to level any surface slightLv below his line 9 of vision.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will bereadily understood without requir- 95 ing a more extended explanation.

Various changes in the form, proportion, and the minor details 01 construction may be for adjusting said glass, a longitudinal sightbore in the stock, and threaded sight-pieces intersecting the sightbore and removably mounted therein, essentially as described.

in testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

PHILIP H. SANGER.

*itnesses:

S. S. Townn, R. MAY W AL'ION.

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