US1718811A - Turntable - Google Patents

Description

. June-25, 1929. DlL ON 1,718,811

' TURNTABLE 4 Original Filed Sept. 5, 1927 4 Sheets-Sheet l iiTiiii .52 o o 1% o o 0000 ATTOR N EY E. A. DILLON June 25, 1929.

TURNTABLE 4 Sheets-Sheet 2 Original Filed Sept. 3, 1927 E. A. DILLON June 25, 1929.

TURNTABLE Original Filed Sept. 3, 192-7 4 Sheets-Sheet 3 a M H 5 3 E a is 0 e e 5 k a P 1 Z M 0 h MN 0/ h ve? Q 6 //l\\ w N v NW M QR r V //d///// /fl/ INVENTOR I BY V I O ATTORNEY E. A. DILLON June 25, 1929.

TURNTABLE 4 Sheets-Sheet 4 Original Filed Sept. 3, 1927 awzwzw,

ATTD R N EY Patented June 25, 1929.

UNITED STATES EARL A. DILLON OF SAN ANTONIO, TEXAS.

TURNTABLE.

Application filed September 3, 1927, Serial This invention relates to turntables and is an inuprovemen t upon. the subject matter this closed in my appending applicatiim Serial. No. 150 9536, filed Novenil i 6, 1926.

Like the invention. refi red to, the present invention has for its object the provision of a turntable for automobiles, for use in garages and other restricted places, such as warehouses, ill-mots and the like.

The primary object of the inventioi'i is to improve and simplify the turntable disclosed in the application inentioiual by reducing the number of parts and providing means of adjustment for the turntable platform to insure ease of rotation, and to especially provirha means for controlling the operation of the turntable by the direction of rotation of the wheels of an. automobile, so that the driver will not be required to manually release or apply the turi'il'ahle brakes.

lVith the above and. other objects in View, the invention further incliules the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed. out in the appended claims.

Tn the drawings:

ll igure 1. is a. top plan view of a turntable constructed in accordance with the invention.

Figure 2 is a bottom plan view of the turntable platform.

Figure 215 is a "tion on the line of Figure 1..

lligruro 4 is a fragnn-zntary bottom plan.

view of the circular track and its manner of connection with the center bear-hag,

Figure 5 is an enlarged fragmentary section taken substantially on the line 5 5 of l igure 1 with the roller cover plate swunp downward so as to render the rollers inao tive.

Figure 6 is a like View showing the rollers uncovered.

Figure 7 is an enlarged fragmentary section taken. substantially on the line 'i'7 of Figure 1.

liteferring to the drawings in detail wherein like characters of reference denote corresponding parts, the turn-table is mounted within a suitable pit 10 and its platform 11 is flush with the floor or surface 12 which surrounds the pit. The platform 11 is supported by a central bearing 18 and by rollers Renewed November 19, 1928.

14; which are spaced aroui'id and secured to the under face of the platform 11.

The rollers 1 1 operate upon a track 15 and the latter is substantially lu-shaped in. cross section soas to provide a vertically disposed circular flllill il'u 1G. The center bearing 13 is formed of opposed bearing members 17 and 18, the former being secured to the inner ends of radially disposed arms 19. The outer ends of these arms are secured to the track 10 as shown at 20 and not only serve to secure the bearing member 17 in place, but also serve to assemble the track 1:3, the latter being formed of segmental sections. The bearing member 17 isprovided with a seat or depression 21. to receive an anti-friction ball 22. The bear-inn member 18 is secured to the under face of the platform 11 and is pro ided. with a recess 23 within. which is movably located a bearing block 24:. This block is provided with a seat or depression to receive the ball. 22 while an adjusting soreiv'filli extends through the platform and bearing member 18 and enga es the bearing: block. lly means of the screw 25, the block Zl: may be ad j ustably positioned so as to properly distribute the weight of the platform to insure ease of operation, as will be hereinafter apparent.

Secured to the upper face of theplatfo1.m 1]. are spaced channel shaft tracks or guides 2-6. These ides are provided withfopenings which register with openings 27 provided in the platform for the accommodation of rollers 28 and 29. These rollers are arranged in pairs as shown .in. the drawinn'." one pair being located at one end guide 26. These rollers control the operation of the turntable and the mechanism controlled by these rollers is duplicated. upon diametrically opposite sides of the center bearing. This mechanism is clearly shown in. lligure 2 of the drawings and only onoof such mechanisms will be describecjl. The shaft 30 of the roller 28 i'nounted in suitable bearings 31 secured to the under face of the platform 11 and this shaft carries a beveled pinion 32 which engages and drives a beveled pinion 3t) .niounted upon a shaft 34:. This last mentioned shaft is journaled in suitable bearings attached to the under face of the platform and has secured thereon a beveled. pinion 35. The pinion 35 engages the teeth of a rack 36 provided around the upper edge of the flange 16 and when the ends anchored as at 41.

roller 28 is rotated, rotary movement will be imparted to the platform. The adjustment of the center bearing 13 is especially useful for properly distributing the weight of the platform to insure proper working en agement between the pinions and' the rec I 36. The shaft 37 of the roller 29 is mounted in suitable bearings 38 secured to the under face of the platform 11 and secured upon this shaft 37 is a brake drum 39. A brake band 40 is arranged to engage the outer periphery of this drum and has one of its The other end of the band 40 is pivotally secured as at 42 to one end of a weighted .arm 43, the said arm being pivotally mounted as shown at 44. The tendency of the weighted arm 43 is to apply sufficient friction to the drum 39 to prevent accidental rotation of the roller 29.

Pivotally mounted within each guide adjacent each of the rollers 29 as shown at 45, is a cover plate 46. This cover plate 1s normally held in elevated position by means of a weight 47, as shown in Figure 6 of the drawings, but is capable of being swung down into position to cover the rollers 28 and 29, as shown in Figure 5.

An automobile driven upon the platform will travel along the guides 26, one of the front Wheels of the automobile riding upward over the rollers 28 and 29. The roller 28 will be momentarily partially rotated, but this rotation will not be enough to cause rotary movement of the platform. Continued forward movement of the automobile will force the cover plate downward so as to permit the "wheel to ride over the plate. One of the rear wheels of the automobile will ride over the roller 28 and occupy a position over this roller and the roller 29 as shown in Figure 6 of the drawings. The transmission mechanism of the automobile is put in reverse and when the rear wheel is rotated, the rollers 28 and 29 will be rotated in the direction indicated by the arrows in Figure 6. As the weight of the arm 43 tends to tighten the brake bands 40, rotation of the roller 29 in the direction indicated by the arrow in Figure 6 and opposite to the direction indicated by the arrow in Figure 7, will tend to release this brake band and p'ermitfree rotation of the roller 29. As the roller 28 is rotated, rotary motion will be imparted to the platform 11 through the gearing previously. described. After the platform has been turned to the desired position, operation of the rear driving wheel of the automobile is stopped. The transmission'is then shifted so that the automobile may be driven forward, whereupon the tendency of the roller 29 will be to rotate in the direct-ion indicated by the arrow in Figure 7. The brake band. will thus have a. lendency to tighten and prevent rotation of the roller 29, so that the automobile may be driven from the rollers. Forward movement of the automobile will press the cover plate 46 downward upon the platform, while the opposite front wheel of the automobile will press the other cover plate downward so as to cover the rollers 28 and 29 and permit the automobile to pass over these rollers without rotating the latter.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is here in reserved to make such changes as properly fall within the scope of the appended claims.

Having described the invention what is claimed is 1. In combination with a turntable, a brake mechanism, means operated by the wheels of an automobile when said wheels are rotating in one direction to simultaneously release the brake mechanism and retate the turntable and means rendered active when the automobile wheels are rotating in an opposite direction to lock the turntable against rotary movement.

2. In combination with a turntable, mechanism to rotate said table, spaced rollers carried by the turntable for engagement by the drive wheels of an automobile, a brake mechanism, means associating one of the rollers with the turntable rotating mechanism to operate the latter when the rollers are retated in one direction and means connecting the other roller and brake mechanism to re lease the said brake mechanism when the drive wheels are rotating in the referred to direction and to render the brake mechanism active when. said wheels are rotating in an opposite direction.

- 3. In combination with a turntable, means to rotate the turntable, Spaced means operated by the wheels of an automobile to coin trol the turntable rotating means, and means operated by the wheels of the automobile to selectively render one of the wheel oper ated means inactive.

4. In combination with a turntable, means to rotate the turntable, spaced means operated by the wheels of an automobile to control the turntable rotating means and pivotally mounted cover plates located in the path of the wheels of the automobile to selectively cover the wheel operated means.

In testimony whereof I aflix my signature.

EARL A. DILLON.

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