US1112935A - Level. - Google Patents

Description

P. E. RIAL & F. E. MOORE.

LEVEL.

APPLICATION FILED NOV. 5, 1912.

1,1 12,935, Patented Oct. 6, 1914.

if 14 6 f 1f. 14

2527574! ZZZ/1100 Zf Inventors Attorneys NORRIS PEIERs C0 PHOI. -ITHQ. WASHINGTON. D C

oNrT nsrArEs PATE FRED E. RIAL Ann FRANCIS E. Moons; oELosANGELEs, oALIFonNIay LEVEL Specification of Letters Patent. 3 i

Application filed November 5,1912. seriaiiro; 729,702.

To all/whom may concern:

Be it known that WeQFREoE. RIAL and FRANCIS EDWARD, MOORE, .citizens of the 1 to various angular positions.

proved support for such levels. It is the object of the present 1nventlon to: provide a base plate adapted to be supported United States, residing at Los Angeles,i n the countyof Los Angeles, State of California, have invented a. new and useful Level, of which the following is, a specifis cation.

I Thepresent invention appertains to spirit levels and particularly toa novel and imby atripod or upon a suitable surface, a plate spaced above the base plate and connected thereto for swinging movements,

meansfor adjusting the upper plate relative 3 to the base plate, and a rotatable spirit level holder carriedby the upper plate, in order that the level holdermaybe ad ustedtothe properhorizontal position and may beset ]OlI1t in order to be, swung relative of jam nuts 12 areengaged "on the pedestal This invention also aims to provide such a device which shall be simple, inexpensive,

durable, substantial and. compact n construction, aswell as serviceable, convenient To the above and other ends, thepresent combination and arrangement of parts here inafter set forth and cIaimedQitbeing understood that changes in the" precise embodiment of invention herein disclosed can be made within the scope of what is claimed .1

without departing fromthe "spirit of the invention. a a

The preferred embodlment of themvent'ion has been illustrated the accompanying drawings, wherein like reference. charac I ters have been employedjtodenote corres- .ponding parts and wherein:-

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. igure 1, isa side elevation of the support.

Fig.2 is aplan view thereof. Fig. 3 is a central vertical section jofthe device.

Referring specifically to the drawing a base plate has been designated by the numeral 4, thesamebeingcircular 1n contour, and the'upper plate or :platenhas been designatedby the numeral 5, the samebeing of a contour and size corresponding wlth the base plate. The base platefrt, however,is comparatively thin, Whereas the upper plate -recess.7 and an opening 9 struction as described presently.

tral dependingllug or upper shallow circular ameter slightly less than said plate 5. The plate witha concaved socketfi i recess 7 of di- 11 thebottom ofthe the socket 8 tothe bottom said opening and socket with the recess 7 and the plate 5.

The pedestallO is screw threaded cenof the plate, the

trally through the base plate 4 and projects PatentedOcti e, 1914.

a 5 is made thicker due to itsparticulariconthe diameter 0f the 5 is also provided extending from i being concentric below the saidbase plate in order tojengage the threaded socket of a tripod, when;

necessary or desirable, the upper end of the pedestal passing; loosely through the open- .ing;9 in the upper plate and having arhemi 1 spherical head 11 fittin intothe'concaved a socket 8 so as to provide a ball and socket permit the "upper plate to to the base plate. A pair 10 to contact. with the respective faces of the base plate inorder to maintain the pedestal face of the head ll is parallel with; the. base .plate xAn annular 1 series of posts'uavi 5 isscrew threaded intowthe base plate 4 adjacent its margin a knurled this case four,

inposition, as will be apparent; The Hat nutlt being engaged oi-screw threaded onto 1 the upper end of eachpost 13 and'havinga conical tip 15. The upper plate -5 is pros vided withfan annular series of indentations 16 in the bottom thereof and adjacentits margin in which the respective tips 15 of the adjustable members or nuts 14 engage. Thus,- the pedestal 10, forms connecting the two plates centrally rot} movements relative to each other,

swinging Whereas the respective bolts and adjusting nuts 1e provide adjrlst-able jam members between the marginal portions of the two 1 plates for settingthe plates at. any angular. y position or a parallel position. relativelt'o each other. 3

A, circular level holding plate or turretfilt is arranged within the recess"? withinithfew plate 5,and is perferablyfflushwiththeface of the said plate 5,the plate 17 beingprovided with a circumferential groove 18, and] y y 90. a' draft member,

' a series of set screws 19 being passed into the in the sockets,

is to be supported. legs lie in a plane plate, in

the periphery of the plate 5 so as to engage.

in the groove 18 for retaining the plate 17 against outward displacement, but permit-. ting the said'plate to rotate freely. It will be'noted that the plate 17 closes the socket 8, the head 11, however, being spaced from the plate 17 in order to permit the plate 5 to swing relatively to the pedestal, the plate 17 being provided with a central ductfif aperture 20 through which oil or other lubricant may be passed so as to lubricate parts which are in sliding engagement with each other.

The flat face ofthe slightly below the bottom of the recess, which will serve to limit the swinging movements of the'plates 5 and 17 with respect to the pedestal, and which will permit the turret or plate, 17 to seat upon the flat face of the head, for'the purpose hereinafter set forth. It will be noted that the periphery or circumference 'of the turret or plate 17 is spaced from the walls of therecess 7, the turret or plate 17 being of smaller diameter than thesaid recess, so that the set screws 19 may be readily adjusted to center the turret or plate 17.

. A pair of studs 21 are screwthreaded into the plate l7 and are provided with oppose-d sockets 22 for the reception of the endsof the spirit level 23 in order to support the spirit level diametrically over the center of the plate 17 Theends of the spirit level 23 may be engaged to the known manner. Thus, the sockets 22 may be of sufiicient depth, to permit one end of the I spirit level to .be inserted in one of the.

sockets, prior to the engagement of the other stud to the plate 17, in order that when the.

said stud is, engaged to the plate, the spirit level may'be slid outwardly slightly to en- .gage in the other socket.

that other means may mountingthe spirit level upon the plate 17.

One of the posts 13 projects below the base plate 4 to provide the leg 24 and a pair of additional legs 24 v 7 plate, so as to provide a three point contact with any object upon which the. baseplate The lower ends of the parallel with the base order that 11 is parallel with the said plate.

This implement may be employed 01 divers purposes, 1t being noted that the same i 'may be employed as a telescopebase ofsurveying instruments, the pedestal 10, or base 4, being adapted to tripod, and the platen being readily adjust- 1 ed by in order that the telescope (not shown) car-' means of the adjustablemembers 14,

studs 21 in any well v The spirit level may then be cemented or otherwise secured it. being understood, however,-

be employed for aresecured to the base the flat face of the head be carried by the usual employed as an ordinary plumbers level, in

which event, it is necessary or essential that the turret be disposed parallel with the plane of the lower ends .of the legs of the base. Duringthe use of the device as a telescope base, it will be observed that the platen and turret are usually tilted at various an gles with respect to the base plate 4, so that the device may not readily be employed as a level without first'bringing the platen par- 1 allel with the base plate. head 11 isdisposed This, however, is

readily accomplished by releasing the adjusting members 14 from the platen, which will permit the platen and turret carried thereby to seat upon the head of the. pedestal. When the platen is thus released, the

turret or plate 17 is adapted to seat on, the flat face of the pedestal head, and inasmuch as the said face of the head is parallel with the base plate 4 and the plane of the lower ends of the legs, the turret will thus be positioned properly in order that, the device may be conveniently employed as a level, it being observed that the platen, together with the turret form a turret structure adapted to be rotated. upon the pedestal head to variously position the spirit level. It will also be observed that the turret and platen being flush permit any suitable: im-

when the platen and turret are rotated together upon the pedestal head. In this manner, the device may be convenlently employed as a plumbers level, the legs of the plement to be placed thereon, especially base plate being adapted to readily set upon the surface or object to be leveled or set in a true horizontal position. By threading the nuts or adjusting members 14 upwardly, they will again contact with the platen so as to raise the same, in which event, the device mayagain be employed as a telescope base, or the like.

From the foregoing, taken in connection with the drawing, the advantages and capabilities ofthe present device "will be appar- 1 ent and it will be manifest that the objects aimed at have been carried out in a satisfactory manner, the present device providing a desirable one forvthe purposes for which it is designed.

Having thus descri is claimed as new is' In a device of the character, described, a base having legs, a pedestal supported by bed the invention, what the base and having a hemispherical head,

the fiat face of whichis parallelwith the plane of the lower endsof the legs, a platen having, a shallow recess and a 'concaved' socket at. thebottom of the recess, the said head fitting Within the said socket withits fiatface disposed slightly below the bottom 1,112,935 a i at 3:

of the recess, a turret plate dispcsed in the t In testimony that we claim the foregoing Y I sald recess, means carried by the platen for as ourown, we have hereto alfixed our sigma 10 holding theturret plate within the recess, tures in the presence of two wltnessesg a spirit level carried by the turret plate, and i FRED E. RIAL.

5 a series of adjusting members adjustably FRANCIS carried by the base to contact With the platen 1 Witnesses: t and to release the platen so that the turret LLHVJAMISON,

platewill seat upon the said head. H. D. CRANE.

Uopierot this patent may be obtained for he cents each, by addressing the Commissioner of intents,

Washington, 10.?

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