USRE16184E - Turntable - Google Patents

Description

Oct. 13 ,1925.

M. L. HOEFFKEN TURNTABLE y 2 Sheets-Sheet 1 Original Fil'sd Ilay 8. 1922 14'. lill. ,i simu' 1 Re. 16,184 M. L. Hol-:FFKEN TURNTABLE original Filed May s. 1922 2 sheets-sheer 2/ Reissued Oct. 13, 1925.

UNITED lSTATES Re. 16,184 PATENT OFFICE;

MAURICE L. HOEFFKEN, or BELLEvrLLE, ILLINoIs.

TURNTABLE. y

Original No. 1,428,090, dated September 5, 1922, Serial No. 559,291, filed May 8, 1922. Application for reissue led November 3, 1823. Serial No. 672,671.

To all whom t may concern:

" Be it known that I, MAURICE L. Hours- KEN, a citizen of the United States, residing at Belleville, county of St. Clair, State of Illinois, have invented new and' useful lmproveinents in Turntables, of which .the following is a. specification.

My invention has relation to improvements in turntables for trucks, and consists in the novel features of construction` more fully set forth in the specification and to the lack of space (road-bed width) for turningr otherwise. As these turntables are generally constructed, the approach at each end consists of an apron which is thrown back out of the way when turning the table. These aprons are unsatisfactory in that they take up room, and have to be held up out of the way when the end of the table passes the sides vof the excavation or bank.

It is the object of the present invention to eliminate these aprons, which I do by maky ing the table tiltable so that the truck can be run onto the table directly and ofi.' again, the table being readily balanced with its load for turning. The manner in which this object is accomplished, as well as other objects, will be better apparent from a detailed descrip-tion of the inventiony in connection with the accompanying drawings, in which Figure 1 is a plan view of my improved turntable; Fig. 2 is a middle longitudinal section through the saine; Fig'. 3 is a middle transverse section through the table; Fig. 4 is a longitudinal section on the line 4 4 of Fig. 1 with the ends of the track broken away; and Fig. 5 is a cross-section taken on the line 5 5 of Fig. 1.

Referring to the drawings, 1 represents a base-plate, the forward edge 1 o-f which is turned u p and provided with a pair of fingers 2, 2 in spaced relation, each finger being perforated to receive one end of a chain 3 by which the turntable can be moved along. The basefplate 1 has a rectangular angle frame 4l secured to its upper face, said frame confining a circular track 5 in place, on which are mounted rollers 6, 6, etc., said rollers being held in place by a cage con-sistiug of an inner ring 7 andan outer ring 8, both of which are perforated to receive the ends of pins Qpassing through the rollers'. A circular track 10 is mounted ontV the rollers 6, said trac-k carrying a rectangular angle frame 11 to which is secured by straps 12, 12 a square axle. 13 terminating at both ends in tru'nnions 14, 14. The medial part of the axle rests on a channel 15 spanning across the diameter of the upper track 10, to which it is secured by angle brackets 16, 16. A pair of tracks 17, 17 are oscillatably supported on the trunnions 14, 14 through the agency of brackets 18, 18, which are riveted transversely to the bottom of each track at the center, said brackets having vertical legs 18, 18', each of which isprovided with a hole 0 for receiving a trunnion 14. A guide plate 19 is secured to the inner leg of each channel track 17, and' the tracks are con'- nected on opposite sides of the roller bearings by channels 20, 20. Hooked under the outer legs of both channels 20 adjacent to the tracks 17 are perforated fingers 21, and a tie-rod 22 is passed through the perforated fingers 21 on opposite channels, said rod bearing down on the axle 13 and held securely in place by nuts a, n passed over the ends of the rod. The tracks 17, 17 are held together near the ends by angle bars 23, 23 secured to the inner leg of the tracks by brackets 24, 24. A lever arm 25 is riveted to one of these bars, said lever inclining upwardly, and a pipe handle 26 is passed over the arm 25 when it is desired to turn the turntable.

The operation of my invention may be briefly described as follows:

The truck carrying the road material is driven forwardly onto the turntable, which is tilted downwardly in front o-f the truck (dotted position, Fig 2) and centered so that the load will be in equilibrium or nearly so on the tracks. With the load thus balanced the operator places the pipe handle over the lever 25 and pushes the turntable around a half-circle. lVith the load balanced it is a comparatively easy matter to turn the table on the roller bearings. The load is now dumped and the truck driven olf the table forwardly. When it is desired to advance the turntable the chain 3 is connected to a source of power, and the table dragged to a new position. The turning up of the end l. ot the base l permits the base to pass over the ground Without di ing in.

aving described my invention, I claim:

l. A turntable provided with a stationary base, a table revolubly mounted on said base, and a pair of tracks tiltably supported by said table, said tracks being tiltable in any position of the table.

2. A turntable provided With a stationary base, a frame revolubly mounted on said base, and a supporting member tiltably mounted on a frame, said supporting member being tiltable independently of a movement of the frame.

3. A turntable provided With a base, a frame revolubly mounted on said base, an axle positioned o n said frame, and a supporting member tiltably mounted on said axle, independently of a movement ofthe frame.

4. A turntable provided with a base, a frame revolubly mounted on said base, an axle supported by said frame, a track mounted on each end of the axle and freely tiltable thereon, and structural members connecting the tracks.

5. A turntable provided with a base, a frame revolubly mounted on said base, an axle supported by said frame, a pair of er bearings mounted on said base, a turnf table element supported on said roller bearings, an axle mounted on the turntable element, a track disposed on each side of the turntable element, a bracket projecting up wardly from each track, said bracket being` tiltably supported by the axle, means for revolving the turntable element, and means on the base-plate for coupling the same to a vehicle for moving the turntable.

8. A vehicle turntable provided With a stationary base, a table revolubly mounted on said base, and a pair of tracks tiltably supported by said table, said tracks themselves serving as a ramp for a vehicle mounting or leaving them at either end and in any position of the table.

Signed at Belleville, county ot St. Clair, State of Illinois, this 24 day of October,

MAURICE L. HOEFFKEN.

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