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81. 发明专利

DE1985003U 未知
公开(公告)号：DE1985003U
公开(公告)日：1968-05-09
申请号：DER0036860
申请日：1968-02-07
申请人： RHEINSTAHL GMBH WANHEIM

82. 发明专利

GB1103800A Improvements relating to mechanically advancing mine roof support systems 未知
公开(公告)号：GB1103800A
公开(公告)日：1968-02-21
申请号：GB5504665
申请日：1965-12-29
申请人： RHEINSTAHL GMBH WANHEIM
IPC分类号： E21D17/02 , E21D23/00 , E21D23/06 , E21D23/08
摘要： 1,103,800. Advancing mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. 29 Dec., 1965 [3 Feb., 1965], No. 55046/65. Heading E1E. In an advancing mine-roof support comprising two or more frames arranged in parallel a cantilever extension 11 is supported from two or .more adjacent props as by pivoted jacks 9, 9a. The jack 9, 9a may be pivotally secured to a second jack 12, 12a arranged as shown. For minor modifications and layouts Figs. 2 - - 5 (not shown) should be referred to.

83. 发明专利

DE1257080B 未知
公开(公告)号：DE1257080B
公开(公告)日：1967-12-28
申请号：DER0043446
申请日：1966-06-10
申请人： RHEINSTAHL GMBH WANHEIM
IPC分类号： E21D17/02

84. 发明专利

GB1070710A Improvements relating to pit props 未知
公开(公告)号：GB1070710A
公开(公告)日：1967-06-01
申请号：GB5381565
申请日：1965-12-20
申请人： RHEINSTAHL GMBH WANHEIM
IPC分类号： E21D15/51 , E21D15/58 , E21D15/60
摘要： 1,070,710. Hydraulic pit props. RHEINSTAHL WANHEIM G.m.b.H. Dec. 20, 1965 [Dec. 30, 1964], No. 53815/65. Heading E1E. In a hydraulic pit prop having a relief valve 40, a retraction spring 7 and a combined release and filler valve 13, 15, pressure fluid is adapted to flow at high speed in both directions over the sealing surfaces of the valve 13, 15 during both filling and discharging thereby clearing some of dirt particles. Pressure fluid is fed to the prop by a setting pistol, see Fig. 2 (not shown) introduced to a valve unit 17 which is rotatably mounted in the prop member 4 but axially constrained therein by a rod 18 engaging an annular groove on the unit 17. The pressure fluid is fed through the unit 17 and the valve 13, 15 to a passage 6a communicating with a tube 5 leading to the working chamber (not shown). A drawing key 34 see also Fig. 4 (not shown) may be mounted on the unit 17 to rotate same thereby actuating the release valve by means of a sliding block 25.

85. 发明专利

GB1069909A Improvements in or relating to mechanical force amplifying means 未知
公开(公告)号：GB1069909A
公开(公告)日：1967-05-24
申请号：GB3887064
申请日：1964-09-23
申请人： RHEINSTAHL GMBH WANHEIM
IPC分类号： B30B1/00 , E21D15/28 , F16H25/18
摘要： 1,069,909. Work-holders; stamping. RHEINSTAHL WANHEIM G.m.b.H. Sept. 23, 1964 [Sept. 24, 1963], No. 38870/64. Headings B3B and B3Q. [Also in Divisions E1, F1 and F2] A mechanical force amplifying means, which is applied to an embossing or stamping press, Figs. 4 and 5 (not shown), a vice, Fig. 6 (not shown), and a chucking fixture for machine tools, Fig. 8 (not shown), comprises relatively rotatable pressure plates 1, 2 each formed with two concentric tracks inclined to a plane transverse to the axis, and balls or rollers located between corresponding tracks and extending 180 degrees therearound, the arrangement being such that on relative rotation of the plates 1, 2, relative axial movement of the plates 1, 2 also occurs. An intermediate pressure-plate 7, Fig. 3 (not shown), having balls on each side thereof may be arranged between plates 1, 2. When the top pressure-plate 1 has turned through one revolution, a dog 8 strikes a stop element 9 and entrains the central pressure-plate 7 during the next revolution. Locking means such as a freewheel ratchet may be provided to prevent backrunning of one disc under the applied pressure. On release of the locking means, the return to the original position may be assisted by spring means.

86. 发明专利

DE1240913B 未知
公开(公告)号：DE1240913B
公开(公告)日：1967-05-24
申请号：DER0036964
申请日：1964-01-14
申请人： RHEINSTAHL GMBH WANHEIM
发明人： FROEHLICH DIPL-ING KARL , BRETTNER KARL-HEINZ
IPC分类号： E21D11/10

87. 发明专利

DE1237160B 未知
公开(公告)号：DE1237160B
公开(公告)日：1967-03-23
申请号：DER0038159
申请日：1964-06-18
申请人： RHEINSTAHL GMBH WANHEIM
发明人： FROEHLICH DIPL-ING KARL
IPC分类号： E04B1/58 , E21D11/10

88. 发明专利

GB1037142A Improvements relating to friction-type pit props 未知
公开(公告)号：GB1037142A
公开(公告)日：1966-07-27
申请号：GB3841164
申请日：1964-09-21
申请人： RHEINSTAHL GMBH WANHEIM
IPC分类号： B66F3/24 , E21D15/44 , E21D15/55
摘要： 1,037,142. Telescopic pit props. RHEINSTAHL WANHEIM G.m.b.H. Sept. 21, 1964 [Sept. 21, 1963], No. 38411/64. Heading E1E. In a friction-type pit prop having relatively slidable inner and outer prop members 1, 5 and a clamp 2 to hold them in any required relative axial position, a cylinder tube 11 is arranged coaxially within the outer member 5 to leave an annular gap 16 between the member 5 and itself, which communicates with a filler cap 10 for pressure fluid on the member 5, immediately below the clamp 2, and with the inside of the tube 11 through apertures 17 at the bottom thereof, and the inner prop member 1 has a piston 13 therein. The cylinder tube 11 is detachable from the prop member 5, its upper end being a sealing fit in an annular collar 4 carried by the member 5, and its lower end bearing against a base plate 7 detachably secured to the bottom of the member 5 by means of pins 8 engaging in bores partly in a ring 6 attached to the member 5 and in the plate 7, a sealing ring 9 intervening between the ring 6 and plate 7. The clamp 2 is secured to the collar 4.

89. 发明专利

GB994903A Improvements in friction-type pit props 未知
公开(公告)号：GB994903A
公开(公告)日：1965-06-10
申请号：GB1800662
申请日：1962-05-10
申请人： RHEINSTAHL GMBH WANHEIM
IPC分类号： E21D15/28
摘要： 994,903. Telescopic pit props. RHEINSTAHL WANHEIM G.m.b.H. May 10, 1962 [May 12, 1961], No. 18006/62. Heading E1E. In a telescopic pit prop having a friction lock 3, a clamping device such as a wedge 4 is adapted to act on a clamping plate 5 shaped as shown, the arrangement being such that the plate 5 may move the inner prop member 2 about its longitudinal axis into engagement with an abutment 6. The member 2 is provided with two bearing surfaces 2a, 2b for engagement with the members 5, 6 respectively. In a modification, see Figs. 4, 5 and 6 (not shown), two wedges are employed acting on common or separate clamping plates. A friction lining may be provided for the inner prop to rotate therewith.

90. 发明专利

GB971697A Improvements in mine roof supports and advancing mechanisms therefor 未知
公开(公告)号：GB971697A
公开(公告)日：1964-09-30
申请号：GB3801660
申请日：1960-11-04
申请人： RHEINSTAHL GMBH WANHEIM
IPC分类号： E21D23/00
摘要： 971,697. Advancing mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. Nov. 4, 1960 [Jan. 22, 1960], No. 38016/60. Heading E1E. In an advancing mine roof support comprising frames A, B alternately advanced by a power-driven rack and pinion mechanism 11, 12, 14, the racks 14 are guided in a transmission housing 13 which is of I-section with inturned flanges 10b and has a length corresponding to that of a rack. Rack projections 10c are secured by releasable pins 15 to claws 16 vertically guided in the 5, 6. Specification 951,593 is referred to.

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