baber/WOPTO huggingface dataset:
Patent GB-273719-A (GB)
Title: Improvements in or relating to power plants
IPC: F01K19/02
Filed: 1927-06-28
Abstract: 273,719. Oesterreichische Eisenbahn- Verkehrs-Anstalt. July 5, 1926, [Convention date]. Power-generating systems. - In a system wherein an internal-combustion engine 1 drives a compressor 2 which circulates steam or other fluid to operate an engine 9, high and lowpressure accumulators 6, 3 being arranged on the delivery and suction side of the compressor, the pressures in the accumulators are so interrelated by automatic valves subjected to the pressures in each that the engine 1 and compressor 2 run at constant efficiency between certain permissible pressure variations. In the apparatus 14 shown enlarged in Fig. 2, the valve face 16 is subjected to the pressure in accumulator 3 and the plunger end 18, to the pressure in accumulator 6. A rise in total pressure on the valve 15 due to the accumulators causes the valve to rise against the spring resistance and the low-pressure accumulator to blow off. A second valve is similarly adapted to control a discharge from the high-pressure to the low-pressure accumulator. Water is preferably fed to the accumulator 3 from the accumulator 6 when charging.
Patent GB-214508-A (GB)
Title: Improvements in rollers for garden, agricultural or other purposes
IPC: A01B29/02
Filed: 1923-07-03
Abstract: 214,508. Jones, J. H. July 3, 1923. Rollers, land and garden.-In an implement having two rollers arranged so that the effective pressure on the ground may be varied by tilting the frame so as to raise one of the rollers, each of the two rollers forms a large proportion of the total weight, and the handle, shafts, or the like is attached to the frame between the rollers and is arranged to assume a convenient position for use both when the plane of the axes of the two rollers is horizontal and when it is vertical. The frame consists of side members 3 provided with extensions 6 and bent approximately at right angles and then laterally so as to form an arch-shaped part 4 to which is attached a sinuous handle 5 provided with a transverse grip 9. The extensions 6 are slotted to receive the spindle 8 of the sectional roller 2.
Patent GB-869493-A (GB)
Title: Improvements in or relating to tabletting machines
Inventor: STOTT FRANK THOMAS
IPC: B30B15/30
Filed: 1959-05-21
Abstract: 869,493. Feeding material to tableting machines. HOLROYD & CO. Ltd., JOHN. March 21, 1960 [May 21, 1959], No. 17247/59. Class 87(2). [Also in Group XXX] In a rotary die table machine for forming tablets powdered material as fed from a hopper 59, Fig 3. through a hole 58, Fig. 4, into the housing 21 of an input rotor 47 which in turn feeds it through apertures 53, 54, 55, so that it can be compressed by upper and lower rams 15, 13, in the dies 12, Fig. 1, moving in a circular path about an axis 11. Excess material is fed to an excess control rotor 48 which in turn feeds it through an alternative aperture 52 to the dies 12. Any excess building up into a space which is above the rotor 48, and which can be restricted by means of a filler plate 51, is deflected by a curved vane 50 to the rotor 47. This prevents further material from being fed from the hopper 59 until the surplus has been reduced. The housing 21 is pivotably located at one end by a pin 20, and at the other by a sprung catch 22 so that if a broken ram 15 drops on to the rotary table 10, the housing 21 is caused to swing outwardly by the ram engaging the side thereof, thus disconnecting the drive gear 41 from a driven gear 38 operating the rotor 47. Apertures 60, 61 are provided so that any material entering the joint between the die table 10 and the housing 21 can be sucked away.
Patent GB-1017878-A (GB)
Title: Apparatus for crimping electrical connectors to wires
Inventor: STARTIN KENNETH JOHN
IPC: H01R43/048
Filed: 1963-05-02
Abstract: 1,017,878. Feeding webs. AMP Inc. May 1, 1964 [May 2, 1963], No. 17307/63. Addition to 943,616. Heading B6B. [Also in Division B3] Apparatus for crimping electrical connectors to wire W comprises a separate die-set for each of two strips S of connectors and a feed finger 29 with a pair of tips 32, 33 which are movable between a first position, Fig. 2, in which the tip 33 engages and feeds one of the strips and a second position, Fig. 3 (not shown), in which the tip 32 engages and feeds the other strip. The feed finger 29 is the ram of a pneumatic cylinder 28 and carries the tips 32, 33 adjustably on the end of an arm 31 (Fig. 3) which can be rotated about the ram 29 to feed either strip S from a reel along a groove 24 or 25 in the machine-table. Pressure pads 26 hold the strips in the grooves. During a working stroke of the dies, the ram 29 is retracted; during a return stroke it is advanced. A microswitch (not shown) operated by the tool-holder 5 may control the cylinder 28.
Patent GB-315074-A (GB)
Title: Improvements in mattresses
IPC: A47C23/00
Filed: 1928-06-15
Abstract: 315,074. Gale & Sons, Ltd., G., and Ward, W. H. June 15, 1928. Mattresses.-A folding mattress has a pair of metal bars e, f, passing wholly or part way across the frame adjacent the hinges and capable of being secured together to hold the frame open. The bars are preferably of angle iron, the vertical flanges being used for securing foundation wires l, which support upholstering springs k. The tension on these wires can be adjusted by screwed nipples m.
Patent GB-584465-A (GB)
Title: An improved apparatus for varying or modulating the frequency of crystal controlled circuits
IPC: H03C3/14
Filed: 1944-09-11
Abstract: 584,465. Frequency modulation. WESTERN ELECTRIC CO., Inc. Sept. 11, 1944, No. 17352. Convention date, Sept. 16, 1943. [Class 40 (v)] Relates to circuits in which a reactance valve is used to modulate or vary the frequency of a crystal-controlled oscillation generator. As shown, the piezo-crystal 2 has two electrodes 3, 4 connected between the grid and cathode of the oscillator 8 and two further electrodes 5, 6 are connected across the inductance 21 in the anode. circuit of a reactance valve 20. A tapping 31 on the inductance 21 is connected through resistance 30 and condenser 28 to the grid of valve 20 to provide appropriately phased grid voltages so that the valve simulates an inductive reactance whose mean value is controlled by the grid bias source 22 and which is modulated by the rectified output from microphone 33 applied through resistance 25 to the grid. In a modification, Fig. 8 (not shown), the crystal has two electrodes only and is connected in the oscillator grid circuit in series with a variable condenser and the anode inductance of the reactance valve. Specification 546,319, U.S.A. Specifications 2,204,762 and 2,306,909 are referred to.
Patent GB-1090482-A (GB)
Title: Apparatus for tracing the contour of a shaped member
Inventor: AGNEW PATRICK WILLIAM
IPC: B23Q35/36
Filed: 1965-04-24
Abstract: 1,090,482. Copy-milling. PRECISION HYDRAULICS Ltd. April 12, 1966 [April 24, 1965; Oct. 30, 1965], Nos. 17381/65 and 46021/65. HeadingB3K. Tracing. apparatus comprises a feeler 9 to engage a shaped member 1 on a platform 2, means 18 for moving the feeler within a carrying head to tend to maintain it against the member, and second means 3, 4 for moving the platform or head to follow the shaped member, the second means being controlled by the movement of the feeler in the head. The platform is mounted on superposed slides movable by the fluid-operated devices 3, 4. The feeler is supported by a ball-joint 11, 12 and is engaged at its upper end by the spring- pressed plunger 18 in carrier 7, 16 rotatable in bearings 15. A disc valve 28 is free to move in a horizontal plane as the feeler is rocked and co-operates with axial ports 25, 26 spaced 90 degrees apart and a radial port 24. When the valve is displaced from a central position, edges 31 uncover ports 25, 26 and either allow fluid to pass from the port 24 to the ports 25; 26 and so to the fluid-pressure devices 3, 4 or cause exhaust flow from the devices 3, 4 via a chamber 36 and a passage 49. Angular movement of the feeler, and thus the maximum platform speed, is limited by a conical recess in the threaded carrier part 16 which is adjustable axially by rotating it by a handle (39). By means of handles (44), the upper carrier part 7 is rotated to cause the bias plunger 18 to hold the tracer against the template. If a reentrant corner is encountered on the template, the plunger 18 is moved back against its spring and the copying movements stop until the bias direction is readjusted. In a modification, the slide valve 28, Fig. 4 (not shown), is limited in movement by a conically-recessed ring (61) adjusted by a collar (8) acting through rods (63). Movement of the valve (28) directs fluid to a swash-plate ball motor (54, 56) as well as to the slides and causes the direction of the bias plunger (18) to be adjusted automatically. A plunger (66) is engaged with one of two slots (67) in the carrier part (16) according to whether clockwise or anti-clockwise template-following is required. With the plunger (66) disengaged, the machine may be controlled manually. In further modification, the member I may be moved round the tracer.
Patent GB-842864-A (GB)
Title: Differential or static pressure measuring apparatus
Inventor: BRITALL WOLFGANG
IPC: G01L7/08
Filed: 1956-06-06
Abstract: 842,864. Recording apparatus. GERATEUND REGLER-WERKE TETLOW VEB. June 6, 1956, No. 17441/56. Class 106 (4). [Also in Group XXIX] The rotation of a shaft 32 of a servomotorcontrolled pressure gauge (see Group XXIX) causes a cable or spring strip 36 to move an inkwell 42 along a rail 40. A pen 43, extending from the inkwell, records measured values on a recording roll 44.
Patent GB-790348-A (GB)
Title: Improvements in motor-driven travelling slewing cranes
IPC: B66C23/78
Filed: 1956-06-06
Abstract: 790,348. Mobile slewing cranes. MASCHINENFABRIK AUGSBURGNURNBERG AKT.-GES. June 6, 1956 [July 28, 1955], No. 17447/56. Class 78 (4). The luffing pivot 3 of the jib 1 of a mobile slewing crane is transferable to the point 7 on the undercarriage, thereby increasing the loadcarrying capacity of the crane at the expense of the slewing motion. A support 9 placed below the pivot 7 further increases the maximum load.
Patent GB-979069-A (GB)
Title: Improved process and appliance for the surface treatment of pinions
IPC: C21D1/10
Filed: 1961-05-12
Abstract: 979,069. Induction heating apparatus. REGIE NATIONAL DES USINES RENAULT. May 12, 1961 [May 14, 1960], No. 17470/61. Heading H5H. A process for the surface treatment of steel pinions by induction heating in two successive stages comprises the steps of applying low frequency heating at a frequency between 50 c.p.s. and 1500 c.p.s., and applying high frequency heating at a frequency between 50 kc./s. and 1.5 Mc./s. at a wattage of between 1-10 kw./s. sq. cm. of the surface being heated and for a time between 0.01-1 second. Finally the pinion is quenched by spraying. The pinion is held stationary during the two stages of heating and the changeover from low frequency to high frequency heating is effected in a period be tween 0.01-1 second. As shown, the pinion 6 is arranged at the centre of a high frequency inductor 2 which is supported by an insulating casing 12 enclosing a water chamber 7. Under the casing 12 is arranged a low frequency inductor comprising a coil 1 with a ferromagnetic circuit consisting of a yoke 3. The high frequency inductor 2 may be hollow for the passage of a cooling fluid. During the low frequency heating, the tips of the teeth 11 of the pinion may be cooled by a current of cold gas.
Patent GB-1497408-A (GB)
Title: Method for increasing the life span of tissue culture cells
IPC: A61K31/70
Filed: 1974-12-13
Abstract: 1497408 Culturing tissue cells STRATEGIC MEDICAL RESEARCH CORP 13 Dec 1974 [14 Dec 1973] 17501/77 Divided out of 1497406 Heading C6F A method for increasing the life span of tissue cells in a culture medium, in which they tend to die after being grown over an extended period of time, involves growing the cells in a culture medium containing an effective amount of certain defined ethereal mono-subsitution products of monosaccharide derivatives. The Example relates to the cultivation and survival of human embryonic fibroblast cells WI-38 in tissue culture media containing 2, 20 or 40 Ág/ml of 1, 2, o-isopropylidene-3-o- 3'-(N', N'-dimethylamino-n-propyl)-D-glucofuranose. HcL. Addition of the compound reduced the loss of viability by 75% when after cultivation for 72 hours at 34C or 15 days at 37C 95% of the cells would otherwise have been no longer metabolizing.
Patent GB-556729-A (GB)
Title: Improvements in or relating to photographic copying apparatus
IPC: G03B27/36
Filed: 1942-12-09
Abstract: 556,729. Photographic copying-apparatus. KODAK, Ltd. Dec. 9, 1942, No. 17545. Convention date, Dec. 31, 1941. [Class 98 (1)] In a photographic copying-apparatus having a camera movable on a support relatively to the copy and to focusing means by which the lens is automatically focused, a member is provided by which means connecting the focusing means to the support and to the camera are alternatively rendered operative. When the focusing means are connected to the support, movement of the camera on the support focuses the lens, and when the focusing means are connected to the camera both may be moved together to bring the plane which is sharply focused into coincidence with the surfaces of copy of different thickness. In the apparatus shown, a camera IS is held by a pivoted arm 18 on a carriage 17 which is provided with guide rollers 22 engaging a hollow standard 13 on which it is vertically adjustable by means of a sprocket chain 65, the ends of which are secured to the carriage and which passes over upper and lower sprockets (not shown) into the interior of the standard. The lens is automatically focused during vertical adjustment of the camera by a rack 37 engaging a toothed focusing ring 38 and operated by a slide 34 carrying a roller which is held by a spring 40 in engagement with a cam 25 mounted on the side of the standard. The cam is carried by a bar 26 vertically movable in cleats 29 secured to the standard, and connected by a link 48 to a slide member 46. A member 45 secured to the slide 46 and a similar slide on the opposite side of the standard contains internal plate members which are operated by cams on a vertical spindle carrying an arm 59 so as alternately to clamp the member 45 to the standard 13 or to the chain 65. In use, the arm 59 is turned to the position shown, locking the member 45 to the chain, which is then adjusted until a plumbbob 60 carried by the arm contacts with the surface of the copy. During this adjustment the cam 25 and camera 15 move together, so bringing the focused plane into coincidence with the plane of the copy. The arm 59 is then moved to one side, unlocking the member 45 from the chain and locking it to the standard, so that the cam 25 is fixed. The operation of the chain now adjusts the camera only, to secure the desired copying-ratio, the focus being simultaneously adjusted by the cam.
Patent GB-711157-A (GB)
Title: Improvements in or relating to automatic frequency control systems
Inventor: RICKABY FREDERICK IAN
IPC: H04B1/30
Filed: 1951-07-24
Abstract: 711,157. Valve receiving circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 11, 1952 [July 24, 1951], No. 17549/51. Class 40 (5). [Also in Group XXXV] An AFC system, particularly intended for use in the reception of radio transmissions in which the carrier is partially suppressed, is operated by filtered carrier fed through a limiter, the degree of limiting of which is automatically varied in dependence on the carrier-to-noise ratio. As shown the filtered incoming carrier, separated from its side-band or side-bands, is fed at RC1 to the input grid of a pentode valve 9, the anode output circuit 16 of which is tuned to .the carrier frequency and coupled to the input of a limiter valve 19. The AFC system, which regulates the frequency of a locally-generated carrier, is fed from the output of the limiter valve 19. The gain of the carrier amplifier valve 9 is varied by a resistor 6 common to the cathode circuits of this valve and a valve 4 to the grid of which the AGC voltage is applied in negative sense. As this voltage increases, due to stronger carrier reception and increased carrier-to-noise ratio, the cathode voltage of the valve 9 becomes less positive and the gain of that valve increases. In this way, the amount of limiting in the valve 19 increases with the carrier. The initial gain of the control valve 9 may be varied by adjusting the bias applied to the grid of the valve 4 by a switch 21 connecting negative bias sources 22, 23 into series with the resistors 1. This switch may be ganged with another switch for adjusting the gain of a carrier amplifier, according as the receiver 'is set for single side-band double-channel, single side-band single channel, or double sideband transmissions. The bias on the screen of the valve 9 may be adjusted by a tapping 13 in order to vary the change of gain of that valve resulting from a given increase in AGC voltage.
Patent GB-966123-A (GB)
Title: Improvements in or relating to industrial trucks
Inventor: DOLPHIN JOHN ROBERT VERNON
IPC: B66F9/08
Filed: 1962-05-07
Abstract: 966,123. Masted lift trucks. LANSING BAGNALL Ltd. May 29, 1963 [May 7, 1962], No. 17551/62. Heading B8H. In a fork lift truck mast assembly comprising three sections, extension of an hydraulic ram 42 connected between the intermediate section 20, 21 and the inner section 27, 28 raises the inner section with respect to the intermediate section and simultaneously raises the intermediate section with respect to the fixed outer section 15, 16 by means of chains 39 which each pass from an anchorage at the top of the outer section, round pulleys 37, 38 mounted at the lower end of the intermediate section to an anchorage at the top of the inner section. The ram 42 is a two-stage ram and comprises a cylinder 57, provided with pulleys 66 and slidably mounted on a cylinder 47 which is secured at its upper end to an upper cross-member 29 of the inner mast section and which contains a tubular piston 43 secured at its lower end to the base of the fixed outer mast section. Chains 67 pass from anchorages on a cross-member 30 of the inner mast section, round the pulleys 66 to anchorages on the lifting carriage 34 which is slidable on the inner mast section. The arrangement is such that on applying fluid pressure to the bottom of the tubular piston 43, the cylinder 57 is raised on the cylinder 47, thereby raising the lifting carriage 34 on the inner mast section, until stops on the two cylinders abut, in which position the carriage 34 is at the top of the inner mast section. Further supply of fluid then raises the cylinder 47 on the piston 43 thereby raising the inner mast section with respect to the intermediate mast section and raising the inner and intermediate mast sections with respect to the fixed mast section.
Patent GB-1034520-A (GB)
Title: Process for the compression and simultaneous purification of ketene
IPC: C07C45/90
Filed: 1965-04-28
Abstract: Process for the compression and simultaneous purification of ketene, which is obtained by pyrolysis of acetic acid under sub-atmospheric pressure in the presence of catalysts, wherein after removal of the main amount of water and acetic acid, purification and compression is effected in a liquid ring pump in which the pump fluid is a hydrocarbon or a mixture of hydrocarbons, which has a viscosity not greater than 3 E DEG  and a boiling point within the range 150 DEG C. to 330 DEG  C.  The ketene is sucked into the pump and compressed by the circulating hydrocarbon mixture.  After initial saturation of the pump fluid, the impurities form a second liquid phase.  The mixture then leaves the pressure side of the pump, which is suitably kept between 30 DEG  C. and 100 DEG  C., is cooled to room temperature, and is separated into pure ketene and pump fluid.  The impurities are precipitated from the pump fluid, which is then recycled.  The ketene is ready for use at atmospheric, subatmospheric or superatmospheric pressure.
Patent GB-444172-A (GB)
Title: Improvements in means for generating combustion products under pressure for power purposes
IPC: F42B3/04
Filed: 1934-06-16
Abstract: 444,172. Explosives ; gas - producing cartridges. COFFMAN, R. A., 185, West 41st Street, Pittsburg, U.S.A. June 16, 1934, No. 17893. [Classes 9 (i) and 9 (ii)] [See also Group XII] A power-generating unit for producing high pressure gases suitable for starting internalcombustion engines as described in Specification 355,022, [Group XXVII], and for other purposes comprises a mixture of nitro-glycerine containing pellets and nitro-cellulose pellets and means for igniting the pellets to produce combustion without detonation. As shown in Fig. 3, the power generating unit comprises a cartridge having a combustible case 5 and closure cap 25 and a metal ferrule 6 having a central aperture 7 to receive a contact pin 8 included in an electric circuit which also includes a contact strip 14 and a bridge wire embedded in match head composition 16 and earthed to the ferrule at 18. Discs 9, 10 of insulating material are arranged at the base of the cartridge and a sleeve 12 of insulating material is provided in the aperture 7. The pellets may be of different sizes, those nearest the igniting means being smaller. The match head composition 16 may be ignited by a resistance wire or by a spark gap. Fig. 5 shows a modification in which the pellet 28 of match head composition is anchored in a base washer 10b and ignited by a primer cap 7b to ignite the main charge. Fig. 11 shows the main charge enclosed in a small bag of silk, rayon or nitro-cellulose film composition which may burn without ash. The charge is ignited by a match head 66 carried by electric leads 67. Other modifications are described.