US420880A - Half to edgar l - Google Patents

Description

(No Model.)

J. T. LAMBDIN.

GAGE POR MASONRY WORK.

Patented Peb. 4,1890.

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UNITED STATES ATENT OFFICE.

JAMES T. LAMBDIN, oF PHILADELPHIA, PENNSYLVANIA, AssIGNoR oF ONE- I-IALF To EDGAR L. FISI-IER, oF SAME PLACE.

GAGE FOR MASONRY WORK.

SPECIFICATION forming part of Letters Patent No. 420,880, dated February 4, 1890. Application filed May 24, 1889. Serial No. 311,97 6. (No model.)V

T all whom t may concern:

VBe it known that I, JAMES T. LAMBDIN, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Gages for Brickl/Vork and Masonry, of which the following is a specification.

The object of my invention is to construct a device for accurately gaging and giving the To true lines to courses of masonry or brick work, and especially to the corners or angles of such work; and this object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which- Figure l. is a perspective view of the gage. Fig. 2 is a vertical sectional view of the same, and Figs. 3 and -l are detached views of parts of the gage.

A is a vertical stem or standard, having a zo projecting arm A with a blade or tongue a., which is inserted between adjoining courses of masonry or brick work at the corner' of the same, and in connection with the side anges b of the arm A serves to support the standard vertically in line with the angle or corner and at some distance therefrom, de-

. termined by the adjustment of set-screws h', carried by the flanges b and bearing on the faces of the wall at some little distance from the apex of the angle, an inclined and adjustable brace D engaging with the lower courses and serving to aid in steadying the standard. The brace D has a threaded stem c, which is adapted to a nut C, longitudinally confined to a block C', pivoted between ears c at the lower end of the stem A, so that said brace is' free to swing to assume diiferent angles, and can be lengthened or shortened as required.

Secured to the u right standard A is a series of brackets c, which can be adjusted on the standard to suit different thicknesses of the courses which are to be laid, one side of the standard A having a gage to facilitate this adjustment, and each of the brackets is adapted for the reception of an extension piece or gage F, Figs. l and 3, forked at the outer end and having its two arms at the same angle as that which the corner is to assume; or the arms may be pivoted, as shown in Fig. 4, so as to be' adjusted to any angle desired, and may be slotted, as shown in said figure, so as to be adjusted longitudinally for any required degree of extension.

The standard A has at its base a rounded block f, adapted to a concave seat at the outer end of the arm A', and through the hollow standard extends a rod g, which is secured at its lower end to the arm A', and is threaded at its upper end for the reception of a nut h, 6o which bears upon a cap at the top of the standard. On loosening this nut, therefore, the standard can be swung in any direction until it is perpendicular, and can then be secured in this position by tightening the nut, the leveling of the device being determined in any available way. The standard A being vertical, the laying of the brick-work courses with reference to the gages F must insure an absolutely vertical corner or angle without 7o the exercise of the high degree of skill now required in this class of work and without risk of variation due to the uncertainty of action of a hanging plumb-bob. The gages also serve to govern the thickness of the mortar courses, so that the successive courses will be uniform. The gage may also be used for straight work 'by extending a line from a gage F at one corner to a gage F at the opposite corner of the work. 8C

At the apex of the angle formed by the bearing-wings h on the arm A is a vertical opening fw, so as to permit a view of the corner below the gage in order to sight the same as the wall is laid.

Having thus described my invention, I claim and desire to secure by Letters Patentl. The combination of the standard and its gages, the blade for engaging with the lower course of the brick-work, and the inclined 9o adjusting and supporting bar, substantially as specilied.

2. The combination of the standard, its gages, and projecting blade with the supporting-bar carried by a nut con fined to apivoted 95 block on the standard, substantially as specified.

The combination of the standard and Yits blade for engaging with the lower course of the brick-work with gages vertically adjustroo able on said standard for governing the laying of the upper courses, substantially as specified.

l. The combination of the standard and its blade for engaging with the lower course of the brick-work with gages vertically ad j nstable on said standard Afor governing Jrhe iaying of the upper courses, said gages having forked outer ends, substantially as specified.

5. The combination of the base-ar1n for engagement with the lower Course of the bricku Work, the Vertical standard universally jointed on said arin and having gages for the upper courses, and the looking-bolt for securing the standard in position, substantially as speeied.

6. The combination of the standard and inea-ns for supporiin g the same with the gages,

consisting of arms pivoted to assume dil'lerent angles and slotted so as to be extended to a greater or less extent, substantially as specified.

7. The ombination of the standard and its gages with the proj ee'fing ar1n having a blade for engaging with the lower courses, angle-A bars for bearing against the faces of said Courses, and a vertical sighting-openii'ig at the apex of the angle, substantially as specified.

In testimony whereof I have signed my 3o naine to this speeication in the presence of two subscribing witnesses.

JAMES T. LAMBDIN.

lVitnesses:

XVILLIAM D. CONNER, HARRY SMITH.

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