US1969398A - Turntable - Google Patents

Description

Aug. 7, 1934. ELLIOTT 1,969,398

TURNTABLE Filed Nov. 9. 1931 2 Sheets-Sheet 1 Harry 6. [Mail ATTORNEY.

1934- H. c. ELLICTT 1,969,398

TURNTABLE Filed Nov. 9. 1931 2 Sheets-Sheet '2 INVENTOR.

Harry C Ellioi'i ATTORNEY.

Patented Aug. 7, 1934 UNITED STATES PATENT OFFICE i I :.1,969,a9s i TUnn'rnBLn Y Harry'C. Elliott, Towanda, 'Kans Annlicafibn M e. 1931. S r a ;Nf 8'6 I.

1 Claim. (01. 104-41) My invention relates to improvements inturn table's. 1 l The object of my invention is to provide a turn table having duplex tracks thereonalter- -'5 nately engaged atea-ch rotation of the table.

A further object of my invention is to provide a'turn table that is automatically turned by the automobile, and astopping means for the correct position of the same that is automatic 10 likewise. I a I A still further object of my invention is to provide a turn table having a revolving means to turn the same in one continuous direction.

A still further object of my invention is to 5 provide a turn table for automobiles or the like having the carrying and rotating means therefor positioned in a pit and a disc covering the same to protect it against the action of the ele- I ments and to serve as a safeguard against accidents to pedestrians.

A still further object of my invention is to provide a turn table that is economical in the construction and installation thereof.

I These and other objects will hereinafter be more fully explained, reference being had to the accompanying drawings forming a part of this specification, and in which like characters will apply to like parts in the different views.

Referring to the drawings:

Fig. 1 is a plan view of the turn table, parts being removed for convenience of illustration.

Fig. 2 is a sectional view taken on line 2--2 in Fig. 1, looking in the direction of the arrows, and p showing the turn table with an automobile placed thereon to illustrate the purpose of certain elements.

Fig. 3 is an inverted plan view of the turn table. Fig. 4 is an enlarged detail view of the ratchet controlling means for the rollers.

: My invention herein disclosed consists of a pair of tracks 1 and a second pair of tracks 2 parallel therewith and in close proximity thereto, the direction of travel on each pair being in opposite directions as indicated by arrows.

Centrally, arranged and transversely positioned relative to the tracks is a plate 3 secured thereto and being apertured to rotatably engage on the center post 4, the said post extending downward and being rigidly secured in the bottom of the pit 5.

Each end of the adjacent tracks is carried by a roller 6, each roller being trunnioned on a U- shaped bearing that is secured to its respective 5 end of the track and is tangentially positioned with respect to the line of travel-as the table is turned.- 1 ul Secured to the under side 'ofthe track element is a disc 9 which serves as. closing means'for the topof the pit. The peripheral edge'of the disc floats in a rabbet formed around'the top of the pit as at 10, the outer portion of which r'abbet slopes downward and outward to fun-ctionr as a drain for water flowing from the disc. The said rabbet has tile laterals outwardly extending therefrom"-functioning as a drain therefor, but

are not shown in -the draw'ings.

The track members 1 and 2 that are adjacent are integrally joined and have a flange 11 on the outer sides of each and a flange 12 intermediartely positioned and functioning as a guide for the wheels of a vehicle as they pass along the track.

When the table is positioned before the door of a private garage, the function will be as follows:

The vehicle will enter tracks 1 to a point as shown by the position of an automobile in Fig. 2, at which point the front wheel will impose its weight upon plate 13 that is hingedly connected to the track at one end and which is slanted upward normally by a spring tensioning means later described, and when pressed downward as above stated a second plate 14 positioned near the other end of the track will be vertically positioned thru the medium of a connecting rod consisting of a shaft 15 telescopically engaging in a sleeve 16 and urged in one direction by a spring 17. By this means plate 14 may be rocked downward when plate 13 is depressed, but may be anchored vertically by a pin 15 engaging in 80 an elongated slot 16'. The said slot will permit the travel of the pin for the downward movement of plate 14 against the resistance of compression spring 1'7 when plate 13 is compressed to snug engagement on the track. To normally position the said plate 14 on a plane with the track, I have arranged a spring 18, one end of which is secured to the track, and the other end connected to the sleeve 16 as retracting means for the sleeve and shaft.

An automobile on the track is free to move onward until the front wheel is positioned on plate 13 at which instant the plate 14 is erected vertically as shown in Fig. 2, functioning as a stop against which one of the rear wheels will 1.0

engage, and being thus stopped the other rear wheel will be positioned on roller 19 that is frictionally rotated thereby, and to avoid contact of the said wheel and the track during rotation end of the track and is tangentially positioned "1:10

rollers 20, one of which is positioned on each side of roller 19 and in close proximity thereto. Rotation of roller 19 causes rotation of the table thru the medium of a chain 21 engaging on a sprocket wheel 22 that is secured to the shaft of the said roller 19, and a second sprocket wheel 23 that is placed on the shaft of a bevel gear 24, the said gear and sprocket being trunnioned on a bearing 25 that is secured to the under side of plate 3. The said gear is in mesh with an annular gear 26 that is concentrically secured v to the bottom of the pit.

It is now readily seen how the turn table-Eis rotated around its center bearing thru power transmitted by the automobile which may be" backed into the garage and driven out without interference from the plates and rollers.

In Fig. 4 is shown a pawl 27 rockably arranged to engage with a toothed wheel 28, by which means the rotation of roller 19 is permitted in one direction, and. preventedin the other. The

approach on the turn table is at all timesover the right hand pair of tracks, and whenthe table is turned the car is backed into the garage, and to. remove the car it will be guided over the other pair of tracks without energizing the turning means of. the table.

While I have shown and described, a turn -.table.with its operating mechanism housed within a pit, I do not wish to be restricted to this construction alone, as the mechanism disclosed may be elevated, and approached by a ramp. By

-' Patent is In a turntable of the class described comprising two pairs of tracks in parallelism, and a center post; rollersto carry the tracks when turned on the center post, a plate hingedly mounted near one endof one-track-of each pair of tracks, a stop hinged near the other end of each of the same tracks, means connecting each plate With .its; corresponding stop member so that weight imposed on a plate will raise the stop member to engage an automobile wheel; the corresponding track having a series of rollers arranged lone gitudinally thereof and directly opposite to the;

stop member: of the associated track; one of said rollers being adapted to be rotatedby an automobile wheel and to transmit, through the medium of a series of gears, power from said wheel to rotate the turn table.

HARRY c. ELLIOTT.

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