US1417639A - Table leveler - Google Patents

Description

D. L. STERNER. TABLE LEVELERL l PPLICATION FILED MAR. 19, |921. L A k 1,417,639. A Patented May 30, 1922.

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Specification of Letters Patent. l play 30,

Application lecl March 19, 1921. Serial 110.453,826.

T 0 all whom t may concern.

Be it known that I, DANIEL L. STERNER, a citizen of the United States, residing at Spokane, in Spokane County and State of Washington, have invented certain new and useful Improvements in Table Levelers, of which the following is a specication.

My present invention relates to improvements in table levelers especially adapted for use in connection with the legs of billiard and pool tables, and similar' articles of furniture, for adjusting the height of the different parts of the table in order to present a level working surface, and ysupport the table in properly adjusted position.

The primary object of the invention is the provision of a device of this character that may be used at the foot of the supporting legs of the table and is readily attachable thereto, and when so attached, may be actuated with facility in the vertical adjustment of the table. As constructed the device is comparatively inexpensive in cost of production, is durable and strong, and when attached to the table leg presents a neat and finished appearance as a part of the leg.

To this end the invention consists in certain novel combinations and arrangements of parts as will be hereinafter described, illustrated in the drawings, and set forth in the appended claim.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention in which the parts are combined and arranged according to the best mode I have thus far devised.v for the practical application of the principles of my invention.

Figure 1 is a vertical sectional view at the foot of a table leg, showing the device of my invention in connection therewith, the housing and actuating shaft being shown in section.

Figure 2 is a similar view taken at right angles to Figure 1.

In the preferred form of the invention illustrated in the drawings I have designated the table leg as 1 and in the foot of the leg a socket 2 is bored, said socket preferably being circular and of suitable depth for the purpose required, and a reduced, countersunk central recess or bore 3 is also provided in the leg for the accommodation of the device of the invention.

The leveling device involves the use of a the bottom plate of the housing orferrule is provided a downwardly projecting flange 6, which forms an extension of the leg hf the table, and is adapted to receive the foot plate 7. `The foot plate 7 is an annular disk having a flat bottom surface to rest` with stability on the floor and is fashioned with a Screw vbolt 8 projecting upwardly from the center thereof. The screw bolt 8, which vis non-rotatable, coacts with a traveling knut or threaded hub 9 thereon, and this hub is fashioned with a horizontally disposed work wheel 10 extendingaround its periphery. At its upper portion the traveling nut is provided with an annular ball race 11 for the bearing balls 12 retained by the ring 13 and interposed between the nut and a bearing head 1e of the ferrule or housing. f

The means for actuating the leveling device comprises a worm shaft 15 having a worm'l to engage the worm wheel, and

journaled'in bearings 17 cast integral with the housing or ferrule, and the worm shaft may be revolved b v a key or tool applied Vto the squared end 18 of the shaft, a recess 19 being provided in the ferrule for accommodation of the tool.

The foot plate provides a stablevsupport for` the table leg, and it will be apparent that the weight of the table is borne by this plate through the bolt 8, rotary, traveling nut 9, its ball bearing, and the ferrule or housing. In order to elevate the table,a tool is applied to the squared end 18 and the` shaft 15 turned to the right, the action of the worm screw and Wheel causes rotation of the nut, and as the bolt is stationary the nut is caused to turn and rise, lifting the table leg through the ball bearing yconnection, which latter relieves friction between the parts. In this manner the four legs of the usual table, equipped with the leveling devices, may be adjusted to compensate forv irregularities in the floor, and to support theV table in a perfectly horizontal position.

Having thus fully described my invention,

what I claim and desire to secure by Letters PatentA is: l

The' combination in a leveling device `with.

a housing having an upper perforated head and lower, flanged base plate, of a foot plate Withinthe flanged base plate and a stationary, threaded bolt on said foot plate projeoted through the perforated head, a rotary traveling nut on tie bolt, an anti-friction bearing between said nut and perforated head, an exterior Worm Wheel on said nut, a Worm shaft Journaled 1n the housing and a Worm on said shaft engaging said Wheel, l0 f for the purpose described. f

In testimony whereof7 I affix my signa-

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