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113 records (took 0.021 seconds)

    31.
    发明专利
    未知

    公开(公告)号：AT117920T

    公开(公告)日：1995-02-15

    申请号：AT88905599

    申请日：1988-06-24

    Applicant: BIES DAVID A ,  PAGE STEWART GEORGE

    Inventor： BIES DAVID ALAN ,  PAGE STEWART GEORGE

    IPC: B06B1/18

    Abstract: PCT No. PCT/AU88/00212 Sec. 371 Date Dec. 21, 1989 Sec. 102(e) Date Dec. 21, 1989 PCT Filed Jun. 24, 1988 PCT Pub. No. WO88/10157 PCT Pub. Date Dec. 29, 1988.A vibration generator including an inertial body and a housing which are relatively movable and where hydraulic fluid is directed into the inertial body through a control valve mounted in the inertial body, the fluid being directed alternately into one or another working chamber which causes oscillation of the housing and any attached load. A wave form shape of pressure or flow rate of the hydraulic fluid flow is detected and used to control the frequency at which the vibration generator oscillates so that the frequency is maintained at a resonant frequency. The device has particular application in a frequency range of 20 Hertz to 1000 Hertz.

    Rotary Piston Internal Combustion Engine
    34.
    发明专利
    Rotary Piston Internal Combustion Engine 未知

    公开(公告)号：GB1155429A

    公开(公告)日：1969-06-18

    申请号：GB5113766

    申请日：1966-11-15

    Applicant: STEWART GEORGE ROMNEY

    Inventor： STEWART GEORGE ROMNEY

    IPC: F01C1/07 ,  F02B41/02 ,  F02B53/00

    Abstract: 1,155,429. Rotary-piston internal combustion engines. G.R. STEWART. Nov.15,1966, No.51137/66. Heading F1F. A rotary-piston I. C. engine of the kind comprising an annular cylinder within which is mounted on a coaxial drive shaft a pair of diametrically opposite "drive" pistons and intermittent the "drive" pistons on a tubular counter-shaft encircling the drive shaft a pair of diametrically opposite "compression" pistons and piston control means causing the "compression" pistons to rotationally oscillate with respect to the "drive" pistons during shaft rotation, includes means for selectivity adjusting the magnitude of the oscillatory movement to vary the compression ratio of the engine. As shown in Fig. 3, the piston control means comprises diametral lugs 132, 134 formed on the drive shaft 60, diametral lugs 142, 144 formed on the countershaft 70 and pairs of equal-armed levers connected to each lug. The ends of adjacent lever pairs are connected together by a pivot pin on which is mounted a roller to engage a cam track formed by parallel straight portions 120, 122 and arcuate portions 124, 126. The connection between each lug and its pair of levers comprises, for the lug 134, e.g., a pivot pin 170, Fig.5, formed with a rectangular head 172 slidable in a slot 174 in one lever 157 of the pair, a rectangular member 176 slidable in a slot 178 in the other lever 156 of the pair, spacers 182, 184 and a nut 180. The lug 134 is provided with three holes 135, 136, 137 in which the pivot pin 170 may be selectively positioned to vary the compression ratio of the engine. The engine may be liquid or air cooled. Lubricant under pressure is delivered to a stationary sleeve surrounding an extension to the drive shaft and passes through radial and axial passages in the drive shaft to lubricate relatively sliding contact faces between arms formed on the shafts 60, 70 to carry the pistons and also the pistons faces in contact with the annular cylinder.

    Improvements in Advertising Apparatus.
    39.
    发明专利
    Improvements in Advertising Apparatus. 未知

    公开(公告)号：GB190724191A

    公开(公告)日：1908-11-02

    申请号：GB190724191D

    申请日：1907-11-01

    Applicant: MELLING JAMES ,  STEWART GEORGE GILBERT RANDOLP

    Inventor： MELLING JAMES ,  STEWART GEORGE GILBERT RANDOLP

    Abstract: 24,191. Melling, J., and Stewart, G. G. R. Nov. 1. No Patent granted (Sealing fee not paid). Chromatropes.-Relates to advertising-apparatus in which advertisements are intermittently exposed through windows e, f in a casing a, and in which fixed advertisements are exhibited through windows c, d at the top and bottom of the casing. Swing colour-screens z, adapted to be oscillated'by lugs z upon the rotating shutter-disk j or by other means, are mounted behind the windows.

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