US1019668A - Combined square and leveling device. - Google Patents

Description

J. 'F. LEW S.

- COMBINED SQUARE AND LEVELING DEVICE. APPLIOATQZON FILED SEPT. 15, 1911.

1,019,668. I Patented ar.5,'1912.

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JAM ES F. LEWIS, F UlNIONTOWN, PENNSYLVANIA.

GOMBINED saunas? AND LEVELING nEvIcE.

combined squares and leveling devices.

One object of the invention is to provide a device of this character having arranged thereon an improved construction rand arrangement of sighting device whefpby thesightingoperationmay be performed in both ment. 7

Another object is to provide... adjustable leveling devices whereby the arm or blades ofthedevice may be; quickly leveled.

A further object is to provide a square and leveling'instrument which will be simpleQstrong, durable and'inexpensive in construction, efficient and reliable in operation and well adapted tolthe purpose for which 0 it is designed;

-With these and other objects in view the invention consists of certainnovel features ofconstruction, and the combination and arrangementlof parts as will bemore fully described and claimed; v

Tn'the accompanying drawings: Figure l is 2.1 12111 view of my nnproved combined square and leveling device; Fig. 2 is a side view thereoftFig. 3 is a similar view showing the sighting devices in section; Fig. l is avertical cross sectional view on the line 4-4 of Fig. 2; Fig. 5 is a similar view on the line 5-5 of Fig. 2;.Fig. (i is an end View of one of thearlns or blades of the square showing the construction and arrangement of the leveling device thereon; Fig. 7 is a side view of the 'outer end of one of the arms of the square and the leveling device thereon.

' Referring more particularly to the drawings,;1,denotes a square, the arms 2 and 5 one-11y arranged brace bar 4 which is connected with the inner sides thereof at a suitable distance from their ends as shown.

Specification of Letters Patent. Application filed September 15, 1911.

This invention "relatesto improvements in I mg plates 8 directions without turning the instru-' adjusting screws 11.

sides centrally Patented Mar. 5, 1912 Serial No. 649,517. r

In the upper sides of the arms or members 2 and 3 of the squaremidway between; the ends of said arms are arranged spirit level glasses 5. i

Arranged in the outer corner of the meet ing ends of the arms or members2 and 310i the square is a supporting plate or lugr'fi which projects a suitable distance below or beyond one side of the square as shown and forms a support for the right angular corner of the square. Secured to the outer ends of the arms or bars 2 are screw supporting brackets 7. said brackets comprising attach adapted to be screwed or otherwise secured bers 2 and 3 and having formed on their upper and lower edges rightangular out wardly projecting lugs 9 and 10. The lugs S) and 10 are provided with-screw receiving to the ends of the arms or mem apertures, the aperture in the lug 10 being,

threaded. .Withthe threaded apertures in the plates 10 are operatively engaged ad: justable supporting screws 11 having on their upper ends smooth extensions 12 which slidably engage the apertures in the lugs 9 and form guides for the screws.

upper ends of the threaded portion screws are formed integral heads or surfaces 13 to receive a wreneh orto a tirin grip for the screws. By constructing and arranging the as herein shown and deof the rovide' scribed the readily brought to a level position which will be indicated by the spirit level glasses 5 thereon.

Rcmpvably and adjustably secured to the arms or members 2 and sighting devices 14 and 15. The sighting devices 14 and 1? are secured to the arms or members of the square by means of clips 16 consisting of plates having on their inner disposed se mental lugs 17 which engage the upper sides of the members 2 and-3 as clearly shown in Fi 4, and 5 of the drawing. On the ends of t e of the clips are formed flanges 18 which engage the opposite edges of the arms or members 2 and 3 and are securely fastened in engagement therewith by set screws 19 arsquared arms of the square may be 3 of. the square are.

plates On the.

fingers for adjusting the ranged in threaded apertures formed in one or both of the flanges 18 as shown. The flanges on both ends of the cli on the outer end of the arm 3 of the square are provided with set screws as shown. The sighting devices 14 and 15 compriseupwardly projecting plates and in the lower portion of the plates 20 of the sighting devices 14 are formed circular openings 21 in which are arranged cross-wires 23,- which indicate the center of the opening. In the upper portion of the plates 20 of the devices 14 are formed centrally disposed peep holes 24. In the upper portion of the plate 20 of the sighting devices 15 is formed a circular opening 25 in which are arranged crosswires 23 which indicate the center of this opening. In the lower portion of the plate .20 'of the device 15 is formed a centrally disposed peep hole 28. I

By constructing and arranging the plates 20 of each of the sighting devices with both a sight-opening and a peep hole arranged as herein shown and described it will be seen that the sighting operations may be performed from either end of the'arms 2 and 3 of the square without turning the latter around. In arranging the sighting devices on the arms 'of the square it will be understood that the devices 14 are disposed at or near one end of the arms, while the sighting devices 15 are disposed at or near the 0pposite ends of the arms and that the peep holes in the plates of one of the devices when thus arranged will be opposite to or in line with the centers of the sight-openings of the opposite devices. By providing the plates of the clips 16 with the cen-. trally disposed lugs 17, the clips may be tilted slightly on said lugs before securing them with the set screws 19, in order to adjust the sighting openings, or peep holes, laterally to properly aline it, or them, when necessary.

From the foregoing description taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood Without requiring a more extended explanation.

Various changes in the form, proportion vand the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of the invention as claimed.

Having thus described my invention what I claim is:'

the arm, a flange at each end of the main bodyvtoembrace the sides of the arm, and

a set screw through one of the flanges to engage the edge of the arm, whereby the sighting devices may be adjusted laterally on the lug as a pivot.

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

JAMES F. LEWIS. Witnesses:

FRANK P. COTTON, W. R. JOHNSON.

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