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Apparatus for roll grooving thin wall pipe comprises a housing supporting a drive roll and an arm pivotally mounted on the housing and supporting a grooving roll. A feed screw between the housing and arm provides for pivoting the arm to displace the grooving roll radially toward and away from the dr

Apparatus for roll grooving thin wall pipe comprises a housing supporting a drive roll and an arm pivotally mounted on the housing and supporting a grooving roll. A feed screw between the housing and arm provides for pivoting the arm to displace the grooving roll radially toward and away from the drive roll, and a release arrangement between the feed screw and arm is operable to release the arm from the screw to protect the screw from damage. The feed screw is mounted on the housing and arm by a double pivot arrangement. Self-tracking during a roll grooving operation is provided by dimensionally different knurling on axially opposite sides of the rolling groove of the drive roll and/or by inclining the axis of the grooving roll relative to the axis of the drive roll and/or by tapering the rolling surface on the rolling projection of the grooving roll and/or by supporting the axially outer end of the drive roll against deflection.

대표청구항 ▼

Apparatus for roll grooving thin wall pipe comprises a housing supporting a drive roll and an arm pivotally mounted on the housing and supporting a grooving roll. A feed screw between the housing and arm provides for pivoting the arm to displace the grooving roll radially toward and away from the dr

Apparatus for roll grooving thin wall pipe comprises a housing supporting a drive roll and an arm pivotally mounted on the housing and supporting a grooving roll. A feed screw between the housing and arm provides for pivoting the arm to displace the grooving roll radially toward and away from the drive roll, and a release arrangement between the feed screw and arm is operable to release the arm from the screw to protect the screw from damage. The feed screw is mounted on the housing and arm by a double pivot arrangement. Self-tracking during a roll grooving operation is provided by dimensionally different knurling on axially opposite sides of the rolling groove of the drive roll and/or by inclining the axis of the grooving roll relative to the axis of the drive roll and/or by tapering the rolling surface on the rolling projection of the grooving roll and/or by supporting the axially outer end of the drive roll against deflection. working fluid from the at least one washing additive. 11. The automatic washing apparatus as defined in claim 10, wherein the separating means separates the working fluid from the at least one washing additive by gravity separation. 12. The automatic washing apparatus as defined in claim 10, wherein the separating means comprises a distillation apparatus for separating the working fluid from the at least one washing additive by distillation. 13. The automatic washing apparatus as defined in claim 10, wherein the separating means comprises a filter. 14. The automatic washing apparatus as defined in claim 10, further comprising means for transferring the separated working fluid to the storage unit. 15. The automatic washing apparatus as defined in claim 1, wherein the pressurizing means pressurizes the wash chamber to pressures of from about 5 atm to about 50 atm. 16. The automatic washing apparatus as defined in claim 1, further comprising a particle trap disposed adjacent to the wash chamber. 17. An automatic washing apparatus to dry launder a fabric load, the apparatus comprising: (a) a sealed wash chamber having a rotatable wash basket having at least one perforation; (b) means for pressurizing the wash chamber to pressures greater than 1 atm; (c) means for dispensing a wash liquor into the wash chamber; (d) means for agitating the fabric load in the wash chamber, to provide for flexure of the fabrics in the fabric load; (e) means for substantially removing the wash liquor from the wash chamber wherein the wash liquor is removed via a fluid path through the wash basket perforation; and (f) means for reducing the pressure in the wash chamber to a pressure equal to or less than 1 atm. 18. The apparatus of claim 17, (g) wherein the dispensing means comprises a means for forming a mist; (h) wherein the pressurizing means pressurizes the wash chamber to pressures of from about 5 atm to about 50 atm; and (i) wherein the means for agitating further includes a horizontal axis or vertical axis agitation means. te radical, and combinations thereof; and at least one compound selected from the group consisting of denatured rhodium oxide, potassium dichromate, denatured radium oxide, sodium dichromate, silver dichromate, monocrystalline silicon, beryllium oxide, strontium chromate, boron oxide, sodium peroxide, β-titanium, a metal dichromate, and combinations thereof. 3. The electrical appliance as claimed in claim 1, wherein said superconductor forms a lining on each of said first and second inner surfaces of said inner and outer walls. 4. The electrical appliance as claimed in claim 1, wherein said thermoelectric unit includes an electrically operable thermal energy source in contact with said bottom surface of said outer wall of said heat-conducting member and connected to said control unit, said thermal energy source having at least one of a heat-absorbing side and a heat-radiating side. 5. The electrical appliance as claimed in claim 4, wherein said thermal energy source is a thermoelectric cooling unit. 6. The electrical appliance as claimed in claim 5, wherein said thermoelectric unit further includes a heat sink disposed on said heat-radiating side, and a fan connected to said control unit and disposed to induce air currents toward said heat sink. 7. The electrical appliance as claimed in claim 6, further comprising a switch unit interconnecting said power source and said temperature control device, said switch unit being operable so as to control supply of electric power from said power source to said temperature control device. 8. The electrical appliance as claimed in claim 7, wherein said thermal conductor is disposed detachably on said temperature control device. 9. The electrical appliance as claimed in claim 8, wherein said temperature control device further includes a heat-conducting plated is posed between said bottom surface of said outer wall of said heat-conducting member and said thermoelectric unit such that said heat-conducting member is in thermal communication with said thermoelectric unit via said heat-conducting plate, an annular pressing plate disposed around said heat-conducting plate, and a plurality of resilient pieces mounted between said pressing plate and said heat sink such that said pressing plate is movable relative to said heat sink, wherein said switch unit includes an operating post disposed between said heat sink and said pressing plate, said switch unit being operable so as to switch between an OFF-mode, where said operating post is spaced apart from said pressing plate and where electric power is not supplied to said temperature control device, and an ON-mode, where said operating post is pressed by said pressing plate when said thermal conductor is disposed on said heat-conducting plate so as to move said pressing plate toward said heat sink and where electric power is supplied to said temperature control device. 10. The electrical appliance as claimed in claim 4, wherein said thermal energy source includes an electric heating element. 11. The electrical appliance as claimed in claim 1, wherein said control unit includes a power control circuit connected to said thermoelectric unit for controlling supply of electric power thereto. 12. The electrical appliance as claimed in claim 1, wherein said temperature control device further includes a display unit connected to said control unit for displaying temperature information of said thermal conductor. 13. The electrical appliance as claimed in claim 1, wherein said hollow heat-conducting member of said thermal conductor is formed as a cup body. 161211, 19790700, Duffy et al., 062/046.2; US-4375257, 19830300, Bruning et al., 062/046.2; US-4385726, 19830500, Bernauer et al., 062/046.2; US-4402187, 19830900, Golben et al., 062/046.2; US-5851690, 19981200, Nakamura et al., 429/059; US-5888317, 19990300, Lee et al., 148/424; US-6068713, 20000500, Yamaguchi et al., 148/513