US1421009A - Turntable - Google Patents

Description

E. R. INMAN.

TURNTABLE.

APPLICATION FILED JAN- 26, 1920- RENEWED DEC. 23, 1921.

Patented June 27, 1922.

3 SHEETS-SHEET 1.

INVENTOF? 'E. R. INMAN;

TURNTABLE.

APPLICATION man JAN. 26, 1920. RENEWED 05c. 23, 1921. 1,421,009.

2 97. n l n 4 H mm Jw d3 m m P E. R. INMAN.

TURNTABLE.

APPUCATION FILED JAN. 26, 1920'- RENEWED DEC- 23, I921.

Patented June 27, 1922.

3 SHEETS-SHEET 3.

, FIG. 0.

hereinafter clearly specified.

TED STATE'PATENT OFFIE.

EDWARD R. IN MAN, 0F FRANKLIN, PENNSYLVANIA.

Application filed January 26. 1920, Serial No. 354,035.

T 0 all wit-omit may concern: p

Be it known that I, EDWA D R. TN'MATN, citizen ofthe United States, residing at tables, of which tion.

This invention relatesespeclally to lin the following is a specificaprovements in a turn table embodying in general terms the construction set rent in- Letters Patent of the United States, dated August 19, 1919, issuedto Richard B. Tseman. I

Said Iseman construction comprises a base provided with mobility wheels, whereby the portability of the turn table is offected; upon said base is revolubly mounted a turret, and said turret lS .'-.l':] turn, equipped upon opposite sides thereof with carriers for the reception of the wheels of anautomobilc. My invention employs this construction with certain improvements My improved turn table, together with certain novel details which embody my in ventive idea, are clearly illustrated in the drawings which form a part hereof, and-in which- Fig. 1 is a plan view, showing a portion of the top of the turret removed to expose the base and its related structure to view.

Fig. 2 is an end view of my improved turn table.

Fig. 3 is a central, vertical, transverse section of same.

Fig. 4 is a plan view of a fragmentot the annular roller bearing which carries the turret.

' said bearing.

Fig. 5 is a side elevation of a portion of Fig. 6 is an elevation, partly in section, of the brake.

Fig. 7 is a side elevation of said brake.

Fig. Sis an elevation of the locking device, showing the locking-bolt in the released or disengaged position. Fig. 9 is an elevation of the .locking device showing the bolt engaged with a suitable engaging device in the floor upon which the turn table travels.

Fig. 10 is anelevation of said bolt.

Fig. llis an enlarged central vertical section of the pivotal bearing and the related structure.

Specification of Letters Patent.

' bolt 11 and TURNTABLE.

Patented June 27, 1 922. Renewed December 23, 1921.

Fig. 12 is a section of the mobility wheel -mounted upon its axle.

Serial No. 524,508. I

The construction here shown consists of a portable base 1, provided with mobility wheels 2,shown in'detail in Fig. 12, which are preferably adapted to travel upon a suitable track (not shown). Said base 1 is preferably circular in shape. A turret 3, of substantially rectangular shape, is revolubly mounted upon said base, and is supported vertically, or carried thereon by means of an annular, thrust roller bearing consist ing of therollers 4, which are spaced apart by means of a cage composed of the rollert'raines 5, between which are interposed suit-' able distance pieces 6. For the purpose of locating and maintaining said base and turret in their proper relative concentric positions, I provide, two members, a pivotal bearing constructed preferably as shown in the enlarged view Fig. 11. Said pivotal bearing consists of the following details:

The base 1 is provided at its center with an upwardly-extending pivot or stub-shaft- T, the upper end of which is formed for the reception of a ball-bearing 8; that shown being of the combination thrust and radial type. The turret is provided with a suitable box or housing 9, into which said ball bearing fits closely, and wherein it is supported by an annular, inwardly-projecting flange 10. Said ball-bearing 8 is firmly secured upon said pivot 7 by means of the displaced from the pivotal hearing I provide for an oil bath around this pivotal bearing by forming upon the base 1 the annular, upwardly-extending flange 13, which forms a receptacle 14 for the reception of oil,-in which the bearing. 8 is immersed. Above this bearing is formed, adished cavity 15, into which a suitable quantityofoil may be poured to fill the receptacle asshown.

For the purpose of excluding water, dust, and other undesirable material. from the bearing, a suitable cover16 is provided for said cavity 15. I K r Said annular, thrust bearing comprising the elements 1, 5 and 6 is also provided with an oil bath in which it operates, in the following way: The circumference of the base 1 is extended upwardly to form a peripheral flange 16, a concentric flange 17 is formed at the pivotal point 01 these 0 plate 12. Thus constructed it is impossible for the turret to lift or become a suitable distance inwardly from said flange 16, and between these two flanges a channel 18 is formed and constitutes a container for oil said annular bearing travels or Operates in this channel, and is thus continuously supplied with oil. The lower, inner face of said flange 16 is provided with a finished face 19, against which guide-wheels 20 travel, that are carried by said annular bearing, for the purpose of maintaining said bearing in a true concentric position.

.The mobility-wheels-Fig. 12of my improved traveling turn table, are preferably constructed in the following manner:

The wheel proper 22 is formed into a housing for the reception of a ball bearing 21. After said bearing 21, and its wheel 20 are assembled, it is secured upon its axle 22 by means of the plate 23, and screw 24. Acap 25 is then secured to the wheel so as to form a lubricant chamber for the reception of a lubricating material 26. Said mobility wheels are thus kept constantly and efficiently lubricated.

Upon opposite sides of said turret 3, structural steel angles 27, or other suitable carrying elements are securely mounted, so that the horizontal leg of same is in close proximity to and parallel with the floor.

These angles are of a suitable length and are suitably spaced for the reception of the wheels of an. automobile, and when the wheels have entered thereon, the turn table may be moved upon its own wheels, thus carrying the automobile; also, the turret and its carriers 27, maybe turned or swiveled for the purpose of heading the automobile in any desired direction, thus enabling it to be easily and quickly turned, in a minimum of space, and into any desired direction.

It will be readily understood that a traveling turn table, having its mobility wheels supplied with properly lubricated, antifriction bearings as above described, will move easily, and, as a matter of fact, it has been found that, when an automobile is upon the turn table, with the turret in the position shown in Fig. 1, that is in alinement with the line of travel of the turn table and the transmission clutch is engaged, the'tractive action of the auto wheels causes the turn table to start to move from beneath the automobile, before the automobile starts to move, and by the time the rear wheels of the automobile have cleared the carriers, the turn table has acquired a considerable speed and consequent momentum.

This action, if some means were not supplied for checking it, might constitute a source of accident and danger. As a means for doing this, I provide the turn table with a brake, as illustrated in Figs. 1, 6 and 7. The construction of this brake is as follows: The turret is provided upon two edges, intermediate the carriers 27. with a lug 28,

ing to the elevator.

which is drilled for the reception of a pin 29; a brake-body 30 is hinged to this pin by means of its arms 31; said brake-body 30 is suitably mortised for the reception of a brake-shoe 32, the lower face of which is adapted to impinge or bear upon the floor on which the turn table travels. For the purpose of manipulating or operating said brake, I provide same with a lever which may also serve as a tongue for moving the turntable. This tongue is arranged to have a limited amount of longitudinal movement through the bosses 34, 35, which are cast integrally with the said body 30. Said l.ongi tudinal movement through said bosses is limited, and the lever prevented from being withdrawn therefrom by a pin 86, which is adapted to contact at either limit of its movement against the inner adjacent faces of said'lugs 34-, lVhen said brake to be set, to prevent the turn table from moving, said tongue is drawn to its outer or most forward position, as shown in Fig. 6; shoe 32 is then :aused to bear upon the floor, by the weight of said lever 33, which weight, and the consequent pressure of the shoe upon the floor, may be manually augmented if nece sary. hen said brake is to be raised out of action, it is manually raised, and tongue 38 is moved backward so that its rearward end passes under the adjacent edge oi? the turret 3; this raises said shoe 32 clear of the floor and holds the brake in the position shown in Fig. 7. A conven ient, simple and eflicient b aim is thus provided, and in its inoperative position-Fig. T--the end of the tongue does not rise above the upper edge of the carriers 27.

This turn table is designed especially for use in garages, and generally, the track upon which it travels, is in alinement with the entrance door of the garage. -\Vl1en the garage is a building of more than one story, and the upper floors are used for the storage of cars, they are usually hoisted to the upper floors by means of an elevator. The most convenient location of this elevator is usually found to be at the end of the turn table track opposite to the entrance door. here such an arrangement is employed, it is often found necessary, or most convenient, to run the automobiles over the turn table in pass It is then desirable to lock the turn table so that it will not move.

For this purpose a lock such as is shown in Figs. 8, 9 and 10 may be employed.

This lock consists of a bracket 37. bolted to the carriers 27, at or adjacent to the ends thereof; within a socket 38, formed on said casin is placed a verticallyor longitudinally-movable bolt 39 provided with a handle 40 which projects at right angle to said bolt. A slot 41 is provided in one side of the wall of said socket for the reception ofsaid handle, so that when the handle is turned to coincide with this socket, the bolt may be lowered, as shown in Fig. 9. One or more sockets, as 41, are provided at any desired point inthe floor for the reception of said bolt, and when the bolt is entered therein, the turn table is locked in a stationary position.

The upper corners of each end of the carriers 27, are curved inwardly to facilitate the passage of the automobile wheels thereon.

Vith reference to the pivotal bearing F 11it has been previously stated that the ball'bearing 8 is of the combined thrust and radial type. The reason for employing a bearing of this type, is that the radial function of the bearing is always in action, to eliminate friction whenthe turret is being turned, and therefore a minimum of power is required for its operation. If, however, the automobile which is upon the carriers ,7 is not centrally placed,that is, positioned nearer to one end of the turn table than to the other, or if one end of the automobile or truck is much more heavily loaded than the other, there may be a considerable upward or leverage strain in which one or more of the rollers 4 act as a fulcrum, and this strain causes an upward thrust on the pivotal bearing. It will thus be understood that it is very desirable to' provide for this strain, especially for the sake of ease of operation, efficiency and durability.

I claim the following:

1. A turn table, comprising in combination, a base having as features thereof, a centrally located oil receptacle, and an annular oil channel concentrically encircling said receptacle; a pivotal bearing carried by said base within said receptacle, an annular thrust bearing carried by said base within said channel, a turret revolubly mounted upon said base supported by said. thrust bearing, and engaging said pivotal bearing, and carriers carried by said turret for the purpose set forth.

2. A turn table, comprising in combination, a base having as features thereof, a centrally located oil receptacle, and an annular oil channel concentrically encircling saidreceptacle, a pivotal bearing of the combination thrust and radial type carried by said base within said receptacle, an annular thrust bearing carried by said base within said channel, a turret revolubly mounted upon said base supported by said thrust bearing, and engaging said pivotal bearing, and carriers carried by said turret for the purpose set forth.

3. A turn table, comprising in combination, a base having as features thereof, a centrally located oil receptacle, an annular oil channel concentrically encircling said oil receptacle, a pivotal bearing of the combined thrust and radial type carried by said base within said receptacle, an annular thrust thrust bearing c arriedby said base within said channel, arranged to revolubly support a turret; a turret revolubly carried by said base supported by said annular bearing and engaging said'pi votal bearing, carriers carried by said turret, and a lock for nonrevolubly locking said tur'retand carriers.

5. A; turn table comprising in combination, a base, apivotal bearing carried by'said base, means applying'lubricant to said pivotal bearing, an-annular thrust bearing car'- 'riedfby 'saidbase' concentrically encircling and adapted to'ftravelaround said pivotal. bearing,means applyinglubricant to said annular bearing, mobility wheels adapted to carrysaid base, a turret revolubly mounted upon said base in engagement with said pivotal bearing, and carried by said annular bearing and carriers carried by said turret for the purpose set forth.

6. A turn table, comprising in combination, a base, a pivotal bearing carried by said base, lubricating means for said bearing car ried by said base, a thrust bearing carried by said base concentrically with said pivotal bearing and adapted to travel about the same, lubricating means for said thrust bearing carried by said base, axles carried by said base, mobility wheels mounted upon said axles, lubricating means for said mobility wheels, a turret revolubly mounted upon said base in engagement with said pivotal bearing supported by said annular bearing, and carriers carried by said turret for the purpose set forth.

7. A turn table, comprising in combination, a base, a pivotal bearing carried by said base, lubricating means for said bearing carried by said base, an annular thrust bearing carried by said base concentrically with and adapted to travel around said pivotal bearing, lubricating means for said thrust bearing carried by said base, axles rigidly mounted upon said base, mobility wheels revolubly mounted upon said axles, lubricating means for said mobility wheels, a turret revolubly mounted upon said base carried by said annular bearing in engagement with said pivotal bearing, carriers carried by said turret, and a brake for the purpose set forth.

8. A turn table, comprising in combination a base, a pivotal. bearing carried by said base, lubricating means for said bearing carried by said. base, an annular thrust bearing carried by said base concentrically with and adapted to travel around said pivotal bearing, lubricating means for said thrust bearing carried by said base,- axles rigidly carried by said base, mobility Wheels revolubly mounted upon said axles, lubrieating means within said wheels, a turret revolubly mounted upon said base carried by said annular bearing in engagement with said pivotal bearing, carriers carried by said turret, a brake carried by said turret arranged to bear upon the floor for the purpose set forth, and a manually operative means for said brake.

9. A turn table comprising in combination,- a base, a pivotal bearing carried by said base, lubricating means carried by said base comprising a lubricant receptacle surrounding said bearing, a thrust bearing carried by said base concentrically with and adapted to travel around said pivotal bearing, lubricating means for said thrust bearing carried by said base, comprising a lubricant channel in which said annular bearing operates, axles carried by said base, selflubricating mobility wheels revolubly mounted upon said axles, a turret revolubly mounted upon said base in engagement with said pivotal bearing and supported upon said annular bearing, carriers carried by said turret, and a lock carried by said carriers adapted for engagement with the floor. t

10. An element of a turn table, in combination with the base and turret, consisting of a pivotal bearing of the combined thrust and radial type carried by said base, and engaged by said turret so as to prevent a relatively vertical movement between said base and turret and means carried by said base for lubricating said bearing.

11. An element of a turn table, in combination with the base and turret, consisting of a pivotal bearing of the combined thrust and radial type, carried by said base, and engaged by said turret so as to prevent the raising of said turret from said base, and lubricating means for said bearing consisting of a lubricant container formed by said base, in which said bearing is immersed.

12. An element of a turn table, consisting of a brake carried by said turn table, a shoe for said brake adapted to contact with the floor, and a manipulating means for said brake consisting of a lever, arranged to serve also as a tongue for the turn table.

In testimony whereof I aflix my signature.

EDWARD R. INMAN.

Images