US2313084A - Turntable and mounting therefor - Google Patents
Turntable and mounting therefor Download PDFInfo
- Publication number
- US2313084A US2313084A US374606A US37460641A US2313084A US 2313084 A US2313084 A US 2313084A US 374606 A US374606 A US 374606A US 37460641 A US37460641 A US 37460641A US 2313084 A US2313084 A US 2313084A
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- Prior art keywords
- turntable
- raceway
- ring
- rim
- shaped
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
- B62D7/023—Steering turntables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
Definitions
- Turntables are usually constructed for mounting at their centers, such a mounting usually constituting the means through which driving rotation is effected.
- This construction necessarily limits the effectiveness of the turntable in carrying heavy loads due to the unsupported weight from its center to its periphery.
- power takeoff for other mechanisms is restricted to the centrally located shaft driving the turntable.
- Another object of the present invention is the provision of a turntable construction having driving means therefor adjacent its periphery.
- a further object of the present invention is the provision of a turntable construction capable of rotatably supporting heavy loads at any position across its face.
- a still further object of the present invention is the provision of a turntable construction being so mounted as to minimize deflections when subjected to heavy loads.
- Another and still further object of the present invention is the provision of a turntable construction having an anti-friction peripheral mounting constantly operating in lubricant and sealed against the entrance of foreign matter.
- a further object of this invention is the provision of a turntable which is simple in construction, durable and efficient in use, and which may be readily assembled and disassembled.
- Figure 1 is a View, partially in top plan elevation and partially in horizontal section, taken substantially along the plane indicated by the line I-I of Figure 4 and illustrating a turntable Figure 1;
- Figure 4 is an enlarged vertical cross-sectional view, with parts in elevation, taken substantially in the plane indicated by the line IV-IV of Figure 1 at an angle of 90 to the section plane of Figure 3.
- FIG 2 there is illustrated a tractor I0 carrying a swinging crane I I by means of a turntable construction I2 embodying the principles of the present invention.
- the turntable construction I2 generally comprises an inner rotating member I 3, an outer stationary supporting member I4, and a plurality of anti-friction members I5 interposed therebetween.
- the inner rotating member I3 is generally circular in shape (Figure 1) of flat metal having its peripheral portions I6 formed inverted U- shape fin (vertical cross section, as shown in Figures 3 and 4, for a purpose to be more fully explained hereinafter.
- the outer edge of the rotating member I3 is formed as a thick rim I1 and is provided centrally of its outer surface with a load-carrying raceway I8.
- a ring gear I9 is inserted within the U-shaped portions I8 to seat against the inside face of the rim I'l and is maintained in mounted position by a plurality of c ap screws 20 ( Figures 1, 3 and- 4).
- vrim I'I and the adjacent leg 2I, forming the inverted U-shaped portion I6 provide strength along the direction of the rotating axis to minimize deflections in the rotating member I3 when rotated under load.
- centrally located web portion 22, connecting the inverted U-shaped peripheral portions of the rotating member I3, is provided with as many openings 23 as are necessary to properly balance the member for rotation.
- a central aperture 24v may be provided to allow control or additional driving mechanisms to be inserted therethrough which would be unaffected by the rotation of the member I3.
- a driving mechanism 25 may be inserted through the opening 24 for driving a mechanism such asY the swinging crane II illustrated in Figure 2. It is to be understood. however, that the turntable construction embodying the principles of this invention is not to be conilned only to use with swinging cranes as the turntable illustrated herein may be used wherever loads are to be rotated by power.
- control rods or other mechanisms may be substituted for the driving mechanism 25, or, the aperture 24 may be enlarged to include therethrough both types of mechanisms.
- the stationary supporting member I4 comprises a lower member 26 being held in stationary supporting position by channel-shaped members 21 and 28.
- the channel-shaped members are connected to the downwardly extending legs 29 of the supporting member I4 by means of bolt and nut assemblies 30 ( Figure 3). If desired, the channel-shaped members 21 and 28. may be formed as integral portions ofthe supporting member 26.
- the supporting member 26 is generally U- shaped in cross section having a rim portion 3I of such diameter as to receive within and adjacent thereto in closely spaced relation the inner rotating member I3.
- a web portion 32 connects the rim portions 3
- the web 32 may also be provided with a central aperture 33 for receiving therethrough control or driving mechanisms, or the like.
- a driving mechanism in the form of a bevel gear 34 is illustrated as extending through the aperture 33.
- a plurality of bosses 35, 36 and 31 are provided on the web 32 to which areconnected a driving mechanism 38, bolted or attached by other suitable means (not shown), which is not described herein as it forms no part of the present invention.
- a pinion 39 is driven by the driving mechanism 38 and positioned within the inverted U-shaped portion I6 in a manner to have toothed engagement with the ring gear I9. Rotation of the pinion 39 serves to drive the inner rotating member I3, as shown in Figures 1 and 4.
- Suitable openings 40 are also provided in the member 26 through which excess lubricant, dirt or the likeA may drain.
- An upper member 4I of the stationary supporting member I4 is formed as a cap ring having a downwardly extending leg 42 of the same thickness and diameter as the rim 3
- the adjacent surfaces oi' the rim portions of the lower supporting member 26 and of the upper member 4 I are of stepped configuration as shown in the drawings. This stepped configuration provides mating shoulders 4Ia, and the resulting male .and female joint assures the same alignment between the members whenever they are connected together.
- the cap ring 4I is connected to the rim 3
- a load-carrying raceway 44 is provided centrally of the connection therebetween to register with the raceway I8 provided in the rim of the inner rotating member I3 when the latter and the outer member I4 are positioned as shown in Figures 3 and 4. It will be apparent that the maleand female joint between the members is necessary to assure proper alignment of the surfaces of the raceway 44 whenever the members are connected by the cap screws 43.
- a plurality of spherical balls or anti-friction members I5 are interposed between the registered raceways to oatingly support the inner rotating member I3 on and within the outer stationary supporting member I4.
- a seal 45 of leather, fabric or similar material is inserted within a suitable circumferentially extending vslot provided on the under side of the inwardly extending leg 48 of the cap ring 4I.
- a similar seal 41 is provided between the inner rotating member I3 and the stationary supporting member 28.
- the leather seals 45 and 41 serve to isolate the. anti-friction members II in a manner to seal lubricant confined within the space provided between the inner member I3 and the outer member I4 and further seals the antifriction members from foreign matter.
- the present invention provides a novel turntable construction having a rotatable anti-friction mounting at its periphery for more eiliciently and properly supporting loads whereby deections are reduced to a minimum. Furthermore. the construction permits other mechanisms, such for example as controls andadditional power drives, to be located and operated through the central portion of the turntable without affecting its rotation.
- a turntable construction comprising a rotatable member having a raceway in the outer periphery thereof, a stationary supporting member of U-shaped section surrounding the peripheral marginal edges of said rotatable member in concentric spaced relation thereto and having a raceway in the inner periphery thereof adapted to register with the raceway in the rotatable member, anti-friction bearing elements in said raceways for maintaining the members in said spaced relation, and means between the marginal edges of said rotatable member and the adjacent portions of the U-shaped section of the stationary member for sealing the space between the members.
- a turntable construction comprising a rotatable member having a raceway 'in the outer periphery thereof, a stationary supporting member of L-shaped section surrounding said rotatable member in concentric spaced relation thereto, one leg of said section being spaced from a marginal edge of said rotatable member and the other les of said section being spaced from the outer periphery of said rotatable member, a ring member of L-shaped section detachably secured to said supporting member, one leg of said ring member being spaced from a marginal edge of said rotatable member opposite to thev first mentioned marginal edge and the other leg of said ring member being seated on said other leg of the supporting member, a raceway in said other legs of the ring member and the supporting member adapted to register withvthe raceway in the rotatable member, and anti-friction ball bearing elements in said raceways i'or maintaining the rotatable member and the supporting member and the connected ring member in said spaced relation.
- a turntable construction comprising a rotatable load-carrying member having a circumferentially extending inverted U-shaped portion at its periphery, the outer flange of said U-shaped portion forming a rim having a load-carrying raceway on the outer side thereof, a ring gear on the inner side of said rim through which said load-carrying member is driven, a stationary l member having a circumferentially extending U-shaped portion at its periphery adjacent to.
- the legs on the U-shaped portion of the stationary member overlapping opposite marginal edge portions of said rim, the web on the U-shaped portion of the stationary member having a load-carrying raceway on its inner side in registry with the raceway on said rim, and a plurality of antifriction members disposed in' said registered raceways.
- a turntable construction comprising a rotatable circular load-carrying member having a circumferentially extending inverted U-shaped portion at its periphery for receiving a driving member therein, said load-carrying member having at least one opening therethrough for surrounding mechanisms unaffected by rotation of said member, an axially extending rim ange forming the outer edge of said U-shaped portion having a load-carrying raceway on its outer side, a ring gear on the inner side of said rim whereby said load-carrying member is rotated by said rim, means for connecting said upper and lower supporting members, said supporting member havinga load-carrying raceway formed at the connection between said upper and lower mem- ⁇ bers, a plurality of spherical balls disposed in said raceways, and sealing means between said load-carrying member and said supporting memberfor isolating said spherical balls and retaining lubricant within the space between said members.
- a turntable con-struction comprising a rot-at.- ⁇
- able member having a raceway in the outer periphery thereof, a stationary supporting member of U-shaped section surrounding the peripheral marginal edges of said rotatable member in concentric spaced relation thereto and having a raceway in the inner periphery thereof adapted to register/with the raceway in the rotatable member, anti-friction bearing elements in said raceway for Amaintaining the members in said spaced relation, said U-shaped section of the supporting member being split through the annular raceway therein and radially with respect to said rotatable member to provide ring portions each having axially spaced surfaces connected by a shoulder intermediate the inner and outer peripheries of the ring portion, means for clamping said ring portions together whereby the split surfaces and shoulders thereon seat against each other to align the split surfaces of the annular raceway therein, and means between the marginal edges of said rotatable member and the adrelation and movable relative to each other, said lring portion of the second member being split through the raceway therein radially
- An outer raceway for a turntable construction comprising a ring shaped member having an annular raceway in the inner periphery thereof, said ring shaped member being split radially through said annular raceway to provide ring portions each having Yaxially spaced surfaces connected by qa shoulder intermediate the inner and outery peripheries of the ring portion, and said ring shaped member also having internally threaded openings extending axially thereof for receiving studs for connecting the ring portions together whereby the split surfaces and shoulders thereon seat against each other to align the split surfaces of theannular raceway.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Rolling Contact Bearings (AREA)
Description
March 9, 1943. F. G. MANLY 2,313,084
TURNTABLE AND MOUNTING THEREFOR Filed Jan. 16, 1941 2 Sheets-Sheet 1 Znl/'En DT March 9, 1943. G, MANLY 2,313,084
TURNTABLE AND MOUNTING THEREFOR Filed Jan. 16, 1941 2 Sheets-Sheet 2 O Tr yf'eclf 6 Mangy.
Patented Mar. 9, 1943 UNITED STATES PATENT OFFICE 2,313,084 l TURNTABLE AND MOUNTING THEREFOR Fred G. Manly, Chicago, ',Ill.
Application January 16, 1941, Serial No. 374,606
7 Claims. (Cl. 212-68) The present invention relatos to a novel turntable and more particularly to one adapted. for anti-friction mounting at its periphery.
Turntables are usually constructed for mounting at their centers, such a mounting usually constituting the means through which driving rotation is effected. This construction necessarily limits the effectiveness of the turntable in carrying heavy loads due to the unsupported weight from its center to its periphery. Furthermore, power takeoff for other mechanisms is restricted to the centrally located shaft driving the turntable. By locating the driving mechanism centrally of the turntable, control mechanisms must necessarily be placed beyond the turntable periphery in exposed, unsightly positions.
It is, therefore, an important object of this invention to provide a turntable construction mounted for rotation at its periphery whereby control mechanisms or separate power drives are eective through its axis of rotation.
Another object of the present invention is the provision of a turntable construction having driving means therefor adjacent its periphery.
A further object of the present invention is the provision of a turntable construction capable of rotatably supporting heavy loads at any position across its face.
A still further object of the present invention is the provision of a turntable construction being so mounted as to minimize deflections when subjected to heavy loads.
Another and still further object of the present invention is the provision of a turntable construction having an anti-friction peripheral mounting constantly operating in lubricant and sealed against the entrance of foreign matter.
A further object of this invention is the provision of a turntable which is simple in construction, durable and efficient in use, and which may be readily assembled and disassembled.
The novel features believed to be characteristic of the present invention are set forth with par- K ticularity in the appended claims. The invention itself, however, both as to its organization and manner of construction, together with further objects and advantages thereof, may best be understood by reference to the following description taken in connection with the accompanying drawings, in which:
Figure 1 is a View, partially in top plan elevation and partially in horizontal section, taken substantially along the plane indicated by the line I-I of Figure 4 and illustrating a turntable Figure 1; and,
Figure 4 is an enlarged vertical cross-sectional view, with parts in elevation, taken substantially in the plane indicated by the line IV-IV of Figure 1 at an angle of 90 to the section plane of Figure 3.
In Figure 2 there is illustrated a tractor I0 carrying a swinging crane I I by means of a turntable construction I2 embodying the principles of the present invention.
As best shown in Figures l, 3 and 4, the turntable construction I2 generally comprises an inner rotating member I 3, an outer stationary supporting member I4, and a plurality of anti-friction members I5 interposed therebetween.
The inner rotating member I3 is generally circular in shape (Figure 1) of flat metal having its peripheral portions I6 formed inverted U- shape fin (vertical cross section, as shown in Figures 3 and 4, for a purpose to be more fully explained hereinafter.
The outer edge of the rotating member I3 is formed as a thick rim I1 and is provided centrally of its outer surface with a load-carrying raceway I8.
A ring gear I9 is inserted within the U-shaped portions I8 to seat against the inside face of the rim I'l and is maintained in mounted position by a plurality of c ap screws 20 (Figures 1, 3 and- 4).
It is to be noted that the vrim I'I and the adjacent leg 2I, forming the inverted U-shaped portion I6 provide strength along the direction of the rotating axis to minimize deflections in the rotating member I3 when rotated under load.
'Ihe centrally located web portion 22, connecting the inverted U-shaped peripheral portions of the rotating member I3, is provided with as many openings 23 as are necessary to properly balance the member for rotation. If desired a central aperture 24v may be provided to allow control or additional driving mechanisms to be inserted therethrough which would be unaffected by the rotation of the member I3. As illustrated inv Figures 3 and 4, a driving mechanism 25 may be inserted through the opening 24 for driving a mechanism such asY the swinging crane II illustrated in Figure 2. It is to be understood. however, that the turntable construction embodying the principles of this invention is not to be conilned only to use with swinging cranes as the turntable illustrated herein may be used wherever loads are to be rotated by power. Furthermore, control rods or other mechanisms (not shown) may be substituted for the driving mechanism 25, or, the aperture 24 may be enlarged to include therethrough both types of mechanisms.
The stationary supporting member I4 comprises a lower member 26 being held in stationary supporting position by channel- shaped members 21 and 28. The channel-shaped members are connected to the downwardly extending legs 29 of the supporting member I4 by means of bolt and nut assemblies 30 (Figure 3). If desired, the channel- shaped members 21 and 28. may be formed as integral portions ofthe supporting member 26.
The supporting member 26 is generally U- shaped in cross section having a rim portion 3I of such diameter as to receive within and adjacent thereto in closely spaced relation the inner rotating member I3. A web portion 32 connects the rim portions 3| and is shaped to provide the downwardly extending integral legs 29. Like the web of the inner rotating member I3, the web 32 may also be provided with a central aperture 33 for receiving therethrough control or driving mechanisms, or the like. In the present instance,- a driving mechanism in the form of a bevel gear 34 is illustrated as extending through the aperture 33.
A plurality of bosses 35, 36 and 31 are provided on the web 32 to which areconnected a driving mechanism 38, bolted or attached by other suitable means (not shown), which is not described herein as it forms no part of the present invention.
A pinion 39 is driven by the driving mechanism 38 and positioned within the inverted U-shaped portion I6 in a manner to have toothed engagement with the ring gear I9. Rotation of the pinion 39 serves to drive the inner rotating member I3, as shown in Figures 1 and 4.
Suitable openings 40 are also provided in the member 26 through which excess lubricant, dirt or the likeA may drain.
An upper member 4I of the stationary supporting member I4 is formed as a cap ring having a downwardly extending leg 42 of the same thickness and diameter as the rim 3| of the lower supporting member 26. The adjacent surfaces oi' the rim portions of the lower supporting member 26 and of the upper member 4 I are of stepped configuration as shown in the drawings. This stepped configuration provides mating shoulders 4Ia, and the resulting male .and female joint assures the same alignment between the members whenever they are connected together. The cap ring 4I is connected to the rim 3| by means of a plurality ofcap screws 43.
When the ring 4I is connected to the lower supporting member 26, a load-carrying raceway 44 is provided centrally of the connection therebetween to register with the raceway I8 provided in the rim of the inner rotating member I3 when the latter and the outer member I4 are positioned as shown in Figures 3 and 4. It will be apparent that the maleand female joint between the members is necessary to assure proper alignment of the surfaces of the raceway 44 whenever the members are connected by the cap screws 43.
As shown in Figure 1, a plurality of spherical balls or anti-friction members I5 are interposed between the registered raceways to oatingly support the inner rotating member I3 on and within the outer stationary supporting member I4. A seal 45 of leather, fabric or similar material is inserted within a suitable circumferentially extending vslot provided on the under side of the inwardly extending leg 48 of the cap ring 4I. A similar seal 41 is provided between the inner rotating member I3 and the stationary supporting member 28. The leather seals 45 and 41 serve to isolate the. anti-friction members II in a manner to seal lubricant confined within the space provided between the inner member I3 and the outer member I4 and further seals the antifriction members from foreign matter.
It `will be observed from lthe foregoing description that the present invention provides a novel turntable construction having a rotatable anti-friction mounting at its periphery for more eiliciently and properly supporting loads whereby deections are reduced to a minimum. Furthermore. the construction permits other mechanisms, such for example as controls andadditional power drives, to be located and operated through the central portion of the turntable without affecting its rotation.
While a particular embodiment only of this invention has been illustrated, it will, of course, be
understood that the invention should not be limited thereto since many modifications may be made and, therefore, it is contemplated by the appended claims to cover all such modifications as fall within the true spirit and scope of the present invention.
I claim as my invention:
1. A turntable construction comprising a rotatable member having a raceway in the outer periphery thereof, a stationary supporting member of U-shaped section surrounding the peripheral marginal edges of said rotatable member in concentric spaced relation thereto and having a raceway in the inner periphery thereof adapted to register with the raceway in the rotatable member, anti-friction bearing elements in said raceways for maintaining the members in said spaced relation, and means between the marginal edges of said rotatable member and the adjacent portions of the U-shaped section of the stationary member for sealing the space between the members.
2. A turntable construction comprising a rotatable member having a raceway 'in the outer periphery thereof, a stationary supporting member of L-shaped section surrounding said rotatable member in concentric spaced relation thereto, one leg of said section being spaced from a marginal edge of said rotatable member and the other les of said section being spaced from the outer periphery of said rotatable member, a ring member of L-shaped section detachably secured to said supporting member, one leg of said ring member being spaced from a marginal edge of said rotatable member opposite to thev first mentioned marginal edge and the other leg of said ring member being seated on said other leg of the supporting member, a raceway in said other legs of the ring member and the supporting member adapted to register withvthe raceway in the rotatable member, and anti-friction ball bearing elements in said raceways i'or maintaining the rotatable member and the supporting member and the connected ring member in said spaced relation.
3. A turntable construction comprising a rotatable load-carrying member having a circumferentially extending inverted U-shaped portion at its periphery, the outer flange of said U-shaped portion forming a rim having a load-carrying raceway on the outer side thereof, a ring gear on the inner side of said rim through which said load-carrying member is driven, a stationary l member having a circumferentially extending U-shaped portion at its periphery adjacent to.
and in spaced relation from said rim, the legs on the U-shaped portion of the stationary member overlapping opposite marginal edge portions of said rim, the web on the U-shaped portion of the stationary member having a load-carrying raceway on its inner side in registry with the raceway on said rim, and a plurality of antifriction members disposed in' said registered raceways.
4. A turntable construction comprising a rotatable circular load-carrying member having a circumferentially extending inverted U-shaped portion at its periphery for receiving a driving member therein, said load-carrying member having at least one opening therethrough for surrounding mechanisms unaffected by rotation of said member, an axially extending rim ange forming the outer edge of said U-shaped portion having a load-carrying raceway on its outer side, a ring gear on the inner side of said rim whereby said load-carrying member is rotated by said rim, means for connecting said upper and lower supporting members, said supporting member havinga load-carrying raceway formed at the connection between said upper and lower mem-` bers, a plurality of spherical balls disposed in said raceways, and sealing means between said load-carrying member and said supporting memberfor isolating said spherical balls and retaining lubricant within the space between said members.
5. A turntable con-struction comprising a rot-at.-`
able member having a raceway in the outer periphery thereof, a stationary supporting member of U-shaped section surrounding the peripheral marginal edges of said rotatable member in concentric spaced relation thereto and having a raceway in the inner periphery thereof adapted to register/with the raceway in the rotatable member, anti-friction bearing elements in said raceway for Amaintaining the members in said spaced relation, said U-shaped section of the supporting member being split through the annular raceway therein and radially with respect to said rotatable member to provide ring portions each having axially spaced surfaces connected by a shoulder intermediate the inner and outer peripheries of the ring portion, means for clamping said ring portions together whereby the split surfaces and shoulders thereon seat against each other to align the split surfaces of the annular raceway therein, and means between the marginal edges of said rotatable member and the adrelation and movable relative to each other, said lring portion of the second member being split through the raceway therein radially with respect to said rst member to provide mating male and female portions, and means for clamping said split ring portion whereby the mating male and female portions coact to align the adjacent surfaces of the split raceway.
-7. An outer raceway for a turntable construction comprising a ring shaped member having an annular raceway in the inner periphery thereof, said ring shaped member being split radially through said annular raceway to provide ring portions each having Yaxially spaced surfaces connected by qa shoulder intermediate the inner and outery peripheries of the ring portion, and said ring shaped member also having internally threaded openings extending axially thereof for receiving studs for connecting the ring portions together whereby the split surfaces and shoulders thereon seat against each other to align the split surfaces of theannular raceway.
FRED G. MANLY.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US374606A US2313084A (en) | 1941-01-16 | 1941-01-16 | Turntable and mounting therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US374606A US2313084A (en) | 1941-01-16 | 1941-01-16 | Turntable and mounting therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2313084A true US2313084A (en) | 1943-03-09 |
Family
ID=23477532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US374606A Expired - Lifetime US2313084A (en) | 1941-01-16 | 1941-01-16 | Turntable and mounting therefor |
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| Country | Link |
|---|---|
| US (1) | US2313084A (en) |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2475963A (en) * | 1943-12-06 | 1949-07-12 | Roy C Howell | Motor truck crane |
| US2512477A (en) * | 1945-02-08 | 1950-06-20 | Thomas D Bowes | Ship's cargo loading gear |
| US2545122A (en) * | 1949-09-27 | 1951-03-13 | Claude A Thompson | Attachment for revolving equipment |
| US2598182A (en) * | 1947-12-12 | 1952-05-27 | Power Jets Res & Dev Ltd | Heat exchanger bearing arrangement |
| US2648444A (en) * | 1948-11-26 | 1953-08-11 | Joy Mfg Co | Timber setting machine |
| US2708767A (en) * | 1952-12-06 | 1955-05-24 | Otis P Dean | Caster construction |
| US2726834A (en) * | 1953-02-24 | 1955-12-13 | Ralph O Hoge | Leveling device for cameras and the like |
| US2908069A (en) * | 1956-10-29 | 1959-10-13 | Priestman Brothers | Method of making slewing bearings for cranes and the like |
| US2928624A (en) * | 1955-02-16 | 1960-03-15 | Maschf Augsburg Nuernberg Ag | Rope drum and driving gear arrangement |
| US2936160A (en) * | 1952-12-22 | 1960-05-10 | Svenska Rotor Maskiner Ab | Regenerative heat exchanger, specifically air preheater |
| US3035528A (en) * | 1960-05-16 | 1962-05-22 | Paul D Bolton | Positioning, locating and weighing apparatus for aircraft or the like |
| US3061389A (en) * | 1958-06-28 | 1962-10-30 | Bargmann H E Erwin | Crane swivel connection |
| DE976024C (en) * | 1951-03-25 | 1963-01-17 | Ernst Dipl-Ing Nass | Mobile port gantry crane with spur and three-point support |
| US3369672A (en) * | 1965-11-22 | 1968-02-20 | Lorence Mfg Corp | Turntable drive mechanism |
| US3726418A (en) * | 1971-07-01 | 1973-04-10 | Clark Equipment Co | System and method for removable installation of swing circle for large crane |
| US3888357A (en) * | 1972-11-15 | 1975-06-10 | Caterpillar Tractor Co | Swing bearing with bolt-on segmented gear |
| US3961713A (en) * | 1974-06-28 | 1976-06-08 | Houston Systems, Inc. | Single line davit |
| US3985406A (en) * | 1973-07-18 | 1976-10-12 | Marion Power Shovel Company, Inc. | Cushioned roller circle |
| EP0077638A2 (en) * | 1981-10-15 | 1983-04-27 | Vickers Plc | Derrick crane |
| US5176267A (en) * | 1990-07-23 | 1993-01-05 | The Manitowoc Company, Inc. | Quick disconnect system for construction equipment with rotatable upper works |
| US5667020A (en) * | 1996-01-26 | 1997-09-16 | Caterpillar Inc. | Circle and drawbar assembly for a motor grader |
| US6010018A (en) * | 1997-04-03 | 2000-01-04 | Manitowoc Crane Group, Inc. | Swing lock mechanism |
| US6170350B1 (en) | 1999-06-08 | 2001-01-09 | Perfection Gear, Inc. | Gear reducer drive assembly |
| EP1873428A1 (en) * | 2006-06-29 | 2008-01-02 | Mannstaedt-Werke GmbH & Co. KG | Turntable having lower maintainance requirements |
| US20200018042A1 (en) * | 2016-10-27 | 2020-01-16 | Volvo Construction Equipment Ab | Apparatus for fixing upper swing structure of construction machine |
| US20200299928A1 (en) * | 2017-12-22 | 2020-09-24 | Kubota Corporation | Working machine |
| US20210062908A1 (en) * | 2019-08-30 | 2021-03-04 | Caterpillar Inc. | Seal assembly for a grading machine |
-
1941
- 1941-01-16 US US374606A patent/US2313084A/en not_active Expired - Lifetime
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2475963A (en) * | 1943-12-06 | 1949-07-12 | Roy C Howell | Motor truck crane |
| US2512477A (en) * | 1945-02-08 | 1950-06-20 | Thomas D Bowes | Ship's cargo loading gear |
| US2598182A (en) * | 1947-12-12 | 1952-05-27 | Power Jets Res & Dev Ltd | Heat exchanger bearing arrangement |
| US2648444A (en) * | 1948-11-26 | 1953-08-11 | Joy Mfg Co | Timber setting machine |
| US2545122A (en) * | 1949-09-27 | 1951-03-13 | Claude A Thompson | Attachment for revolving equipment |
| DE976024C (en) * | 1951-03-25 | 1963-01-17 | Ernst Dipl-Ing Nass | Mobile port gantry crane with spur and three-point support |
| US2708767A (en) * | 1952-12-06 | 1955-05-24 | Otis P Dean | Caster construction |
| US2936160A (en) * | 1952-12-22 | 1960-05-10 | Svenska Rotor Maskiner Ab | Regenerative heat exchanger, specifically air preheater |
| US2726834A (en) * | 1953-02-24 | 1955-12-13 | Ralph O Hoge | Leveling device for cameras and the like |
| US2928624A (en) * | 1955-02-16 | 1960-03-15 | Maschf Augsburg Nuernberg Ag | Rope drum and driving gear arrangement |
| US2908069A (en) * | 1956-10-29 | 1959-10-13 | Priestman Brothers | Method of making slewing bearings for cranes and the like |
| US3061389A (en) * | 1958-06-28 | 1962-10-30 | Bargmann H E Erwin | Crane swivel connection |
| US3035528A (en) * | 1960-05-16 | 1962-05-22 | Paul D Bolton | Positioning, locating and weighing apparatus for aircraft or the like |
| US3369672A (en) * | 1965-11-22 | 1968-02-20 | Lorence Mfg Corp | Turntable drive mechanism |
| US3726418A (en) * | 1971-07-01 | 1973-04-10 | Clark Equipment Co | System and method for removable installation of swing circle for large crane |
| US3888357A (en) * | 1972-11-15 | 1975-06-10 | Caterpillar Tractor Co | Swing bearing with bolt-on segmented gear |
| US3985406A (en) * | 1973-07-18 | 1976-10-12 | Marion Power Shovel Company, Inc. | Cushioned roller circle |
| US3961713A (en) * | 1974-06-28 | 1976-06-08 | Houston Systems, Inc. | Single line davit |
| EP0077638A2 (en) * | 1981-10-15 | 1983-04-27 | Vickers Plc | Derrick crane |
| EP0077638A3 (en) * | 1981-10-15 | 1983-08-10 | Vickers Plc | Derrick crane |
| US5176267A (en) * | 1990-07-23 | 1993-01-05 | The Manitowoc Company, Inc. | Quick disconnect system for construction equipment with rotatable upper works |
| US5667020A (en) * | 1996-01-26 | 1997-09-16 | Caterpillar Inc. | Circle and drawbar assembly for a motor grader |
| US6010018A (en) * | 1997-04-03 | 2000-01-04 | Manitowoc Crane Group, Inc. | Swing lock mechanism |
| US6170350B1 (en) | 1999-06-08 | 2001-01-09 | Perfection Gear, Inc. | Gear reducer drive assembly |
| EP1873428A1 (en) * | 2006-06-29 | 2008-01-02 | Mannstaedt-Werke GmbH & Co. KG | Turntable having lower maintainance requirements |
| US20200018042A1 (en) * | 2016-10-27 | 2020-01-16 | Volvo Construction Equipment Ab | Apparatus for fixing upper swing structure of construction machine |
| US11555290B2 (en) * | 2016-10-27 | 2023-01-17 | Volvo Construction Equipment Ab | Apparatus for fixing upper swing structure of construction machine |
| US20200299928A1 (en) * | 2017-12-22 | 2020-09-24 | Kubota Corporation | Working machine |
| US11982068B2 (en) * | 2017-12-22 | 2024-05-14 | Kubota Corporation | Working machine |
| US20210062908A1 (en) * | 2019-08-30 | 2021-03-04 | Caterpillar Inc. | Seal assembly for a grading machine |
| US11976716B2 (en) * | 2019-08-30 | 2024-05-07 | Caterpillar Inc. | Seal assembly for a grading machine |
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