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  • [发明专利]GB19390005467 _ JOHN ROSS RICHARDS 1939年02月18日
    525,227. Exercising apparatus. RICHARDS, J. R. Feb. 18, 1939, No. 5467. [Class 132 (i)] [Also in Group I] An exercising apparatus for dogs and other domestic pets comprises a rotatably mounted tread belt 18, a supporting frame 10, a standard 27 on eac...
  • [发明专利]GB19390018770 _ JOHN RICHARD ALBERS GERHARD HENRY ALBERS 1939年06月28日
    532,668. Wind motors. ALBERS, J. R.. and ALBERS, G. H. June 28, 1939, No. 18770. [Class 110 (iii)] A wind-motor with screw propeller blades 10 is provided with wind-brake surfaces 21 that normally lie in the circle of their rotation, but, at high spee...
  • [发明专利]GB19390030709 _ GAVIN RALSTON 1939年11月24日
    528,033. Rotary engines. RALSTON, G. Nov. 24, 1939, No. 30709. [Class 110 (ii)] Reversible hydraulic motors, working in parallel and geared to one shaft, comprise eccentrically mounted rotors 37, 38 each having a single sliding vane 45, 46 and rotatin...
  • [发明专利]GB19390020503 _ JOHAN ALFRED JOHANSON 1939年07月14日
  • [发明专利]GB19390016474 _ NILS AXEL SPARR 1939年06月05日
    529,660. Wind wheels. SPARR, N. A. June 5, 1939, No. 16474. [Class 110 (iii)] A rotor comprises two or more cupped vanes 6, Fig. 3, arranged to provide connecting passages 7 between the vanes. The rear edges 9 of the vanes may be bent outwards. The va...
  • [发明专利]GB19390031588 _ GAVIN RALSTON 1939年12月06日
    528,034. Rotary engines. RALSTON, G. Dec. 6,1939, No. 31588. [Class 110 (ii)] Relates to the rotary engine described in Specification 528,033. The stator surface between the points 8, 9 is concentric with the rotor. The vane has an arcuate pivoted sho...
  • [发明专利]GB19390013832 _ LUIGI PREMOLI 1939年05月09日
    519,155. Wave motors. PREMOLI, L. May 9, 1939, No. 13832. [Class 69 (i)] Apparatus for utilizing wave energy comprises a float connected by a cable to a drum, the resulting oscillations of which are caused to rotate a flywheel in a constant direction ...
  • [发明专利]GB19390026021 _ ALFRED RUTT 1939年10月18日
    535,851. Variable-speed gearing. RUTT, A. Oct. 18, 1939, No. 26021. [Classes 80 (ii) and 80 (iv)] Power transmitting means includes a pivotal member 1 carrying one or more revoluble weights 11, 12 mounted on opposite sides of the fulcrum of the pivota...
  • [发明专利]GB19390016275 _ BYRON JACKSON CO. 1939年06月02日
    530,050. Reciprocating pumps. STEVENS, A. H. (Jackson Co., B.). June 2, 1939. No. 16275. [Class 102 (i)] In a hydraulically operated piston-pump with surge means actuated only during reversal of the pump stroke, either the pump or the surge means or e...
  • 10. Windmills
    [发明专利]GB19390003906 _ STOVER MANUFACTURING & ENGINE CO. 1939年02月06日
    522,181. Wind-motors. DEHN, F. B. (Stover Manufacturing & Engine Co.). Feb. 6, 1939, No. 3906. [Class 110 (iii)] A wind wheel shaft 19 drives a pump rod 65 through gearing 27, 76, pitmans 78 and a forked crosshead 80. The crosshead carries a roller 98...
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