US 1151549 A
Description (OCR text may contain errors)
E. A. SCHADE.
LEVELING STAND lAND BASE.
APPLICATION FILED Nov. 7. 1914.
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III' 1 419% @www/Coz AJb/mde Patented Aug. 24, 1915y E. A. SCHADE.
LEVELING STAND AND BASE. APPLlcmoN FILED Nov. 7. 1914.
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1 5 1 ,549. Patented Aug. 24, 1915.
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EDMUND A. SCHADE, 0F NEW BRITAIN, CONNECTICUT, ASSIGNOR T0 THE STANLEY RULE AND LEVEL COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION 0F CONNECTICUT.
T0 all-107mm it may concern f Be it known that I, EnziiUNnrA. SCHADE, a citizen of the United States, residing at the city of .New Britain, county of Hartford, State of Connecticut, have Ainvent-ed certain new and useful Improvements in Leveling-Stands and Bases, of which the following is a full, clear, and exact description.
My invention relates to an improved'and simpliied form of transit stand, the object being to provide an exceedingly simple and inexpensive device, available to many who neither' have the need for, nor the means necessary for the purchase of, the usual high-grade instrument.
1n the drawings, Figure 1 is a perspective view of my invention. Fig..2 is a plan 'view thereof. Fig. 3 is a section on the plane ofthe line 3 3.
1 represents ay suitable platform provided with appropriate means for mounting the usual spirit level thereon. In this instance the stand' is provided with rigid abutments 2, 2 at one side and the movable clamping abutment 3 at the opposite side, by which the level may be held. The stand l is mounted upon the upper section of what I may term a turn-table et and is preferably integral therewith. 5 represents the lower section of the turn-table, which supports the upper section 4, the contact faces of these table sections being uniformly flat so that accurate adjustment is assured. The lower section 5 has projecting therefrom three legs 6,--7 and 8, which in vturn are arranged to eoact with three radial arms 5), 1() and ll, respectively. These arms i), 10 and 11 radiate from the head-piepq` 12, which is cupped on its lower side lo provide a socket centrally thereof designed to receive a supporting member such as a post 14 which may be any convenient post, rod or stake capable of .being supported substantially' vertically in the ground and of a size to enter within the c up or socket of the head.
l5, 15 are clamping screws for clamping the head 12 upon the post 1l.
16,17 and 18 are adjustment screws cooperating between the legs 7 and 8 and the supporting arms 9, l() yand l1. ln this instance thc 'said adjusting screws pass through threaded sockets or bores in the lower ends of the legs (3, 7 and 8 and make Specication of Letters Patent.
LEVELING-STAND AND BASE.
Patented Aug. 24, 1915.
Application filed November 7, 1914. Serial No. 870,827.
engagement with the arms 9, 1G and 11. The lower turn-table section 5 is coupled with the head 12 by a screw 19 located near but slightly to one side of the center line of the parts. One end of the screw 19 rotates freely in one of the connected members-in this instance the turn-table section -and is threaded into the other member-in this in stance lthe head 12. The upper turn-table section -l may be clamped to the lower turntable section 5 by a combined central pivot and clamping screw 20, the said clamping screw having a head or thumb-piece, arranged below the turn-table 5, the threaded end of the screw taking into the threaded opening in the center of the upper turntable section 4.
Q2 is a screw passing centrally down through the upper part of the head 12, the function being merely to engage the upper end of the post 11 and steady it in the event that the post is smaller than the socket formed at the underside of the head.
In operation, the instrument 'is first secured upon the upper end of the post 14 or other similar support, which may be set firmly in the ground and preferably in approximately a vertical position. The upper section -l of the turn-table may then be` turned into the position shown in Fig.A 2, wherein the level 23 supported thereon' will be located in a line substantially parallel to a line intersecting the centers of the screws 17 and 1S. The turn-table section 4 is then locked in that position by the screw 20. The screws 17, 18 are then adjusted until the level instrument Q3 stands in a perfectly level position. i The lock-screw 20 is then re- 'proper one of the screws 16, 17 or 18. When it is determined that the instrument is acci rately positioned, the two parts of the stand,-that is t0 say the lower section 5 of the turn-table and the head v12,--may be locked together by turning down the screw 19.
As shown in Fig. l, the level is preferably govided 'with sighting devices, one sight ing indicated at 24, which sighting devices are well-known and for `which l make no claim of novelty herein, my invention being based upon the novel form of combined adjustable support and stand whereby an ordinary spirit level may be effectively used as a transit instrument.
What I claim is:
In a transit stand, a turntable comprising upper and lower relatively rotatable inembers, means on said upper member for removably clamping a level, a centrally located combined pivot and clamping screw pivoting said members together and for thereof, relcaeable to allow the turntable to be freely adjusted by the .leveling screws and adapted to be set to clamp the turntable in its leveled position on the supporting head.
` EDM'UND A. SCHADE. lVitnesses:
A. L. VVIARD,` W. J. W'ORAM.