公开(公告)号：ZA9703691B

公开(公告)日：1997-11-25

申请号：ZA9703691

申请日：1997-04-29

Applicant: ATLAS COPCO ROBBINS INC

Inventor： ANDERSON LLEWELLAN

IPC: F16H1/46 ,  F16H57/08 ,  E21B ,  B23B

CPC classification number: F16H1/46 ,  F16H57/082

公开(公告)号：SE9702560L

公开(公告)日：1997-07-02

申请号：SE9702560

申请日：1997-07-02

Applicant: ATLAS COPCO ROBBINS INC

Inventor： ANDERSON LLEWELLAN ,  HERN GREGORY L

IPC: E21B10/10 ,  E21B10/12 ,  E21B10/22 ,  E21D9/10

Abstract: A rock cutting tool with a plurality of independently rotatable cutter units and with a shaft, a sleeve located around the shaft, and at least two rotatable hubs located around the sleeve. At least one cutter unit is located on each of the two rotatable hubs for rotation about an axis of rotation with respect to a rock-face. Bearings between the sleeve and each of the hubs rotatably support the hubs. The bearings comprise at least one cylindrical roller bearing set and at least one ball bearing set for each hub. Each roller bearing set is located substantially entirely under the cutter unit of its associated hub to absorb radial loads, and each ball bearing set is located remotely from the cutter unit of its associated hub to be isolated from radial loads. The shaft has first and second key receiving openings. The key is located on the interior surface of the sleeve. The key is mateable with the first and second key receiving openings in the shaft whereby the sleeve is rotatable with respect to the shaft from a first position to a second position to disengage the key from the first key receiving opening and engage the key in a second key receiving opening to extend the bearing life.

公开(公告)号：SE9702560D0

公开(公告)日：1997-07-02

申请号：SE9702560

申请日：1997-07-02

Applicant: ATLAS COPCO ROBBINS INC

Inventor： ANDERSON LLEWELLAN ,  HERN GREGORY L

IPC: E21B10/10 ,  E21B10/12 ,  E21B10/22 ,  E21D9/10 ,  E21B

Abstract: A rock cutting tool with a plurality of independently rotatable cutter units and with a shaft, a sleeve located around the shaft, and at least two rotatable hubs located around the sleeve. At least one cutter unit is located on each of the two rotatable hubs for rotation about an axis of rotation with respect to a rock-face. Bearings between the sleeve and each of the hubs rotatably support the hubs. The bearings comprise at least one cylindrical roller bearing set and at least one ball bearing set for each hub. Each roller bearing set is located substantially entirely under the cutter unit of its associated hub to absorb radial loads, and each ball bearing set is located remotely from the cutter unit of its associated hub to be isolated from radial loads. The shaft has first and second key receiving openings. The key is located on the interior surface of the sleeve. The key is mateable with the first and second key receiving openings in the shaft whereby the sleeve is rotatable with respect to the shaft from a first position to a second position to disengage the key from the first key receiving opening and engage the key in a second key receiving opening to extend the bearing life.

公开(公告)号：ZA967869B

公开(公告)日：1997-06-10

申请号：ZA967869

申请日：1996-09-18

Applicant: ATLAS COPCO ROBBINS INC

Inventor： ANDERSON LIEWELLAN

IPC: E21B4/18 ,  E21D3/00 ,  B28D

Abstract: An inflatable gripper assembly for a rock boring or cutting machine is disclosed. The inflatable gripper assembly comprises a base member (42) and an elastomeric sheet (40) secured in a fluid-tight and reaction force secure manner to the base member. The elastomeric sheet expands when fluid is supplied between the base member and the elastomeric sheet to brace a rock boring or cutting machine in a tunnel. The elastomeric sheet contracts when fluid is removed from between the base member and the elastomeric sheet to allow the rock boring or cutting machine to move within the tunnel.

公开(公告)号：AU677329B2

公开(公告)日：1997-04-17

申请号：AU6706394

申请日：1994-04-13

Applicant: ATLAS COPCO ROBBINS INC

Inventor： ANDERSON LLEWELLAN

IPC: E21B3/02 ,  E21B17/00

公开(公告)号：AU6567696A

公开(公告)日：1997-04-10

申请号：AU6567696

申请日：1996-09-17

Applicant: ATLAS COPCO ROBBINS INC

Inventor： ANDERSON LLEWELLAN

IPC: E21B4/18 ,  E21D3/00 ,  E21C9/00 ,  E21B17/10

Abstract: An inflatable gripper assembly for a rock boring or cutting machine is disclosed. The inflatable gripper assembly comprises a base member (42) and an elastomeric sheet (40) secured in a fluid-tight and reaction force secure manner to the base member. The elastomeric sheet expands when fluid is supplied between the base member and the elastomeric sheet to brace a rock boring or cutting machine in a tunnel. The elastomeric sheet contracts when fluid is removed from between the base member and the elastomeric sheet to allow the rock boring or cutting machine to move within the tunnel.

公开(公告)号：ZA96434B

公开(公告)日：1996-08-08

申请号：ZA96434

申请日：1996-01-19

Applicant: ATLAS COPCO ROBBINS INC

Inventor： ANDERSON LLEWELLAN ,  HERN GREGORY L

IPC: E21B10/10 ,  E21B10/12 ,  E21B10/22 ,  E21D9/10 ,  B28D ,  E21D

Abstract: A rock cutting tool with a plurality of independently rotatable cutter units and with a shaft, a sleeve located around the shaft, and at least two rotatable hubs located around the sleeve. At least one cutter unit is located on each of the two rotatable hubs for rotation about an axis of rotation with respect to a rock-face. Bearings between the sleeve and each of the hubs rotatably support the hubs. The bearings comprise at least one cylindrical roller bearing set and at least one ball bearing set for each hub. Each roller bearing set is located substantially entirely under the cutter unit of its associated hub to absorb radial loads, and each ball bearing set is located remotely from the cutter unit of its associated hub to be isolated from radial loads. The shaft has first and second key receiving openings. The key is located on the interior surface of the sleeve. The key is mateable with the first and second key receiving openings in the shaft whereby the sleeve is rotatable with respect to the shaft from a first position to a second position to disengage the key from the first key receiving opening and engage the key in a second key receiving opening to extend the bearing life.

公开(公告)号：CA1331267C

公开(公告)日：1994-08-09

申请号：CA607685

申请日：1989-08-07

Applicant: ROBBINS INC

Inventor： NIESE MICHAEL W

IPC: E04F15/04 ,  E04F15/18 ,  E04B5/00

Abstract: HARDWOOD FLOOR SYSTEM A hardwood, free floating floor system has upper and lower subfloors of wooden panels with criss-cross kerf patterns formed in either their top or bottom surfaces, a plurality of elongated floorboards disposed above the upper subfloor, the floorboards having transverse kerfs cut in their bottom surfaces, and a plurality of uniformly spaced pads supporting the lower subfloor above a base. The combination of the subfloor kerf patterns, the floorboard kerfs, and the compressible, deflectable pads provides a free floating hardwood floor system which meets the difficult standards established by the Otto Graf Institut of West Germany for assessing a floor's ability to reduce injury and to provide highly consistent performance characteristics.

公开(公告)号：CA524289A

公开(公告)日：1956-04-24

申请号：CA524289D

Applicant: MCKESSON AND ROBBINS INC

Inventor： OMOHUNDRO ALLEN L ,  NEUMEIER FRANZ M

公开(公告)号：GB388737A

公开(公告)日：1933-02-28

申请号：GB2165731

申请日：1931-07-29

Applicant: MCKESSON & ROBBINS INC

IPC: C07C37/16

Abstract: n-Heptyl phenol is obtained by condensing n-heptyl alcohol with phenol in the presence of a condensing agent, such as zinc chloride, calcium chloride, magnesium chloride or anhydrous sodium sulphate, and fractionally distilling the mixture under reduced pressure. The product, which appears to be a mixture of the o-, m- and p-heptyl phenols, has antiseptic properties. In an example, n-heptyl alcohol is prepared in the known manner by destructive distillation of castor oil and reduction of the nanthol obtained, and is then condensed with phenol with the aid of zinc chloride.