baber/WOPTO huggingface dataset:
Patent GB-1457739-A (GB)
Title: Orbiting spacecraft or satellite power systems
IPC: B64G1/42
Filed: 1972-11-29
Abstract: 1457739 Automatic voltage control HAWKER SIDDELEY DYNAMICS Ltd 29 Nov 1973 [29 Nov 1972] 55105/72 Heading G3R [Also in Divisions H1 and H2] A solar array 11 of photo-cells supplies electrical energy to bus lines 12, 13 of a spacecraft or satellite, a storage battery 14 in series with parallel-connected battery charge and discharge regulators 15, 16 being shunted across the array 11. A reference and error amplifier 18 also shunted between bus-lines 12, 13, controls regulators 15, 16 and also a solar array regulator 17, which prevents battery overcharge, to maintain a constant bus voltage. The solar array 11, which is connected to the bus-lines 12, 13 by slip rings to permit turning, may comprise two panels of photo-cells which are deployed when the spacecraft is spinning, and which are supplemented by further panels when the craft is on-station.
Patent GB-1273249-A (GB)
Title: Method of reducing adhesion
IPC: B29C37/00
Filed: 1969-11-17
Abstract: 1,273,249. Reducing the adhesion of rubber surfaces. DUNLOP HOLDINGS Ltd. 17 Nov., 1969 [20 Nov., 1968], No. 56101/69. Heading C3E. The adhesion between the surfaces of adjacent masses of unvuloanized rubber is reduced by dusting the surfaces of the rubber with finely divided trans-1,4-polyisoprene, trans-1,4-polybutadiene, high styrene styrene-butadiene copolymer or ethylene propylene terpolymer. The finely divided materials may also contain carbon black and/or vulcanizing aids.
Patent GB-1240498-A (GB)
Title: Improvements in and relating to cooling dynamo-electric machines
Inventor: RAY PHILIP ANTHONY
IPC: H02K31/02
Filed: 1968-11-29
Abstract: 1,240,498. Cooling homopolar machines. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 26 Feb., 1970 [29 Nov., 1968], No. 56849/68. Heading H2A. In a homopolar machine comprising a rotor having at least one conducting path with continuous or segmented slip rings connected to the ends thereof, a duct for coolant fluid passes in series through one slip ring, the conducting path and the other slip ring. Fig. 1 shows a double discoidal rotor in which conducting paths such as 3a, 4a are located in slots in opposite faces of the disc 1. Pairs of paths, such as 3a, 3b, on each face of the disc are connected in parallel between radially inner step-ring segments 5 and radially outer slip-ring segments 6, and the coolant, after leaving the segment 5, passes through parallel-connected ducts 16, 17 in the paths 3a, 3b to a single duct 20, Fig. 2a in the segment 6 which leads to a sinuous duct 21 formed between a base portion 6a of the segment and an inwardly-facing surface layer 6b on which the brushes 22 bear. The coolant then passes through a duct 24 in disc 1 to a further sinuous duct in the outer segment 8 on the opposite face of the disc and thence through parallel-connected paths 4a, 4b (not shown) and out through the inner segment 7. The segments may be formed of chrome-copper, the surface layers 6b being formed of cupro-nickel. The stator may have a superconducting winding.
Patent GB-1443765-A (GB)
Title: Method of producing cellulose pulp of high birghtness
Inventor: SAMUELSON H O
IPC: D21C9/147
Filed: 1973-12-07
Abstract: 1443765 Oxygen pulping process; bleaching wood pulp MO OCH DOMSJO AB 7 Dec 1973 [19 Dec 1972] 56895/73 Headings DIP and D2W A process for producing pulp of high brightness comprises subjecting wood to a two step digestion process using oxygen in the presence of a digestion liquid containing one or more alkaline neutralising agents under the following conditions:-(a) the digestion liquid is maintained at a pH of 6-9 in the first step, and at least 10 for at least the major part of the second step; (b) the temperature during digestion is 110-160C in the first step and 80-150C in the second step; and (c) the total pressure in each step is greater than atmospheric pressure. The alkaline neutralising agent may be a carbonate, bicarbonate, or hydroxide of an alkali metal, or a mixture thereof. The wood may be subjected to a pre-treatment step by treatment with a liquid containing one or more neutralising agents at 60-200C, preferably at a pH of 6.5-14, until from 1-30% based on the dry wt. of wood has dissolved. The spent pretreatment liquid is removed from the wood before oxygen digestion commences to obtain an optional effect. Inhibitors which act to reduce or prevent degradation of carbohydrates may be present during oxygen digestion. Such inhibitors may be magnesium oxide, magnesium hydroxide, magnesium sulphate or magnesium carbonate. Organic or inorganic peroxides e.g. hydrogen peroxide, sodium peroxide may be added during and/or after the second digestion step to provide a brighter pulp. The resulting pulp may be bleached by means of conventional bleaching agents in one or more steps. Specified bleaching agents are chlorine, chlorine dioxide, hypochlorite, peroxides, and/or oxygen.
Patent GB-1366630-A (GB)
Title: Containers
IPC: B65D21/04
Filed: 1971-12-01
Abstract: 1366630 Moulded boxes AIRFIX PLASTICS Ltd 1 Dec 1971 [1 Dec 1970] 57009/70 Heading B8P A moulded plastics box has one or two projections 8, 8<SP>1</SP> in each end wall 4 and 5 and also one or two recesses 11, 11<SP>1</SP> adjacent the box base, the projections and recesses being offset in one wall with respect to those in the other wall. With this arrangement, the boxes will nest one within another, but if one is rotated 180 degrees relative to the other the boxes can be stacked with the projections 8, 8<SP>1</SP> located in recesses 11<SP>1</SP>, 11 of an upper box. Locations 9, 9<SP>1</SP> at the top of the projections prevent lateral movement of stacked boxes. The boxes may be injection moulded, and in a modification the projections could extend downwardly from the side walls and the recesses be located in the upper marginal portions of the side walls.
Patent GB-1114510-A (GB)
Title: Electrically conductive zinc oxide
IPC: C09C3/12
Filed: 1966-12-30
Abstract: Electrically conductive zinc oxide is prepared by treating finely divided non-conductive zinc oxide with a silane SiX4, where X is hydrogen, or a C1 to C3 alkyl group, or an aralkyl, monocyclic aryl or naphthenic group, at 300 DEG  C. to 500 DEG  C. in a non-oxidizing atmosphere.  The silane may be admixed with the non-oxidizing gas before contact with the zinc oxide. Specified silanes are methylsilane, tetrahydrosilicon, phenylsilane and tetramethylsilane, and carrier gases used are nitrogen, argon, hydrogen and carbon monoxide.  The amount of silane is less than 10% by weight of the zinc oxide, and the treated zinc oxide has the fine particle size of the starting material, low specific resistance and is resistant to heat sintering.  It is usually hydrophobic, but may be hydrophilic, depending on the silane used.
Patent GB-1313193-A (GB)
Title: Process for making hydraulic cement based grouts mortars and concret
IPC: C04B20/10
Filed: 1970-12-09
Abstract: 1313193 Cementitious compositions FRANCE EQUIPMENT MINISTRY OF 9 Dec 1970 [12 Dec 1969] 58394/70 Addition to 1207023 Heading C1H In the preparation of water-cement slurries containing a viscous binder comprising athermohardenable resin and a setting agent therefor, the resin or setting agent is adsorbed on a solid support of particle size greater than 80 microns and the support is then crushed to below 80 microns prior to incorporation in the slurry. Portland cement clinker having grains of above 2 mm. is coated with an amidoamine or aliphatic polyamine setting agent, crushed in a ball mill and then mixed with an epoxy resin prior to incorporation in a cement-water mixture to be used as an injectable slurry for concrete cables. The amount of binder is suitably 6% based on the solid support or 0À8% based upon the granular substances in the slurry. A mortar used as a 1 cm. layer on highway surfaces is made from corundum or silicon carbide particles Portland cement, water and resin.
Patent GB-1312839-A (GB)
Title: Pivoting windows
IPC: E05D7/084
Filed: 1970-12-10
Abstract: 1312839 Pivoted windows J ALEXANDRE 10 Dec 1970 [12 Dec 1969 17 Nov 1970] 58596/70 Headings E1J and E2M  A window has a frame 11 pivoted on hori-zontal pivots 20 situated half way up the window, these pivots resting on members 7 along which the pivots can slide to or from (in the embodiment of Fig. 2) the part 27 of the fixed frame, against which the window seals by means of a seal 25, this part 27 being hinged to the part 26 of the fixed frame, the swinging of this part 27 out of the path of the pivoted window frame 11, allowing this to be pivoted through at least one complete revolution. An alternative embodiment (Fig. 5) has, mounted on the moveable frame 11, a device consisting of a retractable blade 35 moveable by turning handle 38 which fits into a groove 33 in one stile of the fixed window frame, this having a seal 34 within it, the retraction of the blade 35 (to the position shown in Fig. 5) allowing the window to be pivoted through one revolution, the blade sealing and holding fast the window when inserted in the groove.
Patent GB-1329747-A (GB)
Title: Document conveyor apparatus
IPC: B65H9/00
Filed: 1970-12-10
Abstract: 1329747 Feeding sheets XEROX CORP 10 Dec 1970 [17 Dec 1969] 58705/70 Heading B8R Document feed apparatus for advancing documents on to a gripper cylinder 22, e.g. the original document drum of a xerographic copier, comprises guide means, e.g. stationary guides 71, 73, rollers 81, and balls 84, gate means 85 positioned in the path defined by said guide means to arrest a document until ready to be fed on to a rotatable cylinder, roller means 114, 121 co-operating with the arrested document, first cam follower means 93 co-operating with first cam means 90, e.g. on the cylinder 22, to raise the gate means 85, and second follower means 126 co-operating with second cam means 91, e.g. on the cylinder 22, for driving the roller means to advance the document to the cylinder. Rollers 81 may be skewed to side register the documents against a wall of the guides 71, 73. A document may trip a sensor 86 as it reaches the gate, this actuating a solenoid 88 to move a clapper 89 allowing cam follower 93 to pivot clockwise in accordance with cam 90, this causing lever 104 to pivot anticlockwise, pin 109 raising the gate 85 whilst roller 114 on lever 104 decends and presses the document against lower feed roller 121, this then being rotated via gear 129 and toothed segment 121 by the second cam follower 126. Piled copy sheets may be separated by roller (42), Fig. 1 (not shown), and fed via guides and gripper chain (43) to a xerographic drum (20).
Patent GB-1185314-A (GB)
Title: Improvements in or relating to Centrifugal Pumps.
Inventor: CAMAC GEORGE
IPC: F04D29/22
Filed: 1967-04-24
Abstract: 1,185,314. Centrifugal pumps. SPEEDWELL RESEARCH Ltd. April 24, 1967, No.59284/68. Divided out of 1,185,313. Heading F1C. The subject matter of this Specification is substantially the same as that described in Specification 1,185, 313 which is concerned with the construction of the pump casing, but the present claims are concerned with a centrifugal pump having an impeller in which each impeller blade has a first portion which extends radially outwardly from the impeller hub, and a second portion arranged within the pump inlet and having a part which extends transversely from the first portion to reduce the tendency to cavitation. Moreover, the maximum radial and axial dimensions of the first portion are greater than those of the second portion, and the maximum transverse extension of the second portion part is greater than the maximum thickness of the first portion.
Patent GB-1324490-A (GB)
Title: 9alpha methyl steroids
IPC: C07J7/00
Filed: 1970-07-13
Abstract: 1324490 9-Methylsteroids; 17,17-ethylenedioxysteroids SANDOZ Ltd 13 July 1970 [23 July 1969 8 Aug 1969] 59608/72 Divided out of 1324381 Heading C2U The invention comprises compounds of formula (wherein R 1  is H, Me or Et, and R 2  is C 1-4  alkyl), and their preparation by methylation of the corresponding 9-unsubstituted steroids which in turn may be prepared from 17,17-ethylenedioxy- 13 - alkylgona - 1,3,5(10) - triene - 3,11# - diols by 3-etherification followed by 11-oxidation. The 9-methylation is effected in the presence of a strong base using a reagent of formula CH 3 Z where Z is the acid residue (other than a fluorine atom) of a mineral acid or of an organic sulphonic acid. Other steroids may be prepared from compounds of Formula X as described in Specification 1,324,381.
Patent GB-1316319-A (GB)
Title: Ecl gating circuits
IPC: H03K19/086
Filed: 1970-12-17
Abstract: 1316319 Transistor logic circuits SIEMENS AG 17 Dec 1970 [6 Feb 1970] 59842/70 Heading H3T A logic circuit includes three emitter-coupled pairs in one of which the transistors T1, T2 receive separate inputs a, b through level shifting networks #U1, #U2 and connect a constant current source K to the other two pairs respectively, one transistor in each of these two pairs T3, T5 receiving an input c, d and having its collector connected to a load R2, R1 in common with the collector of the non-input-receiving transistor T6, T4 of the other of the two pairs. The level shifting circuits #U1 and #U2 (Fig. 3, not shown) render a, b, c, d compatible, and #U1 is greater than #U2 by half the signal swing to ensure consistent operation. The a, b inputs may be supplied through emitter followers to the shift circuits. The input receiving transistors T1, T2, T3, T5 may be shunted by further input-receiving transistors to extend the logic capabilities. By variously interconnecting a, b, c, d and by applying 0 or 1 to one or more of them, various logic functions can be performed including AND, OR, NAND, NOR, EXCLUSIVE OR, and others. The level shift circuit (Fig. 3, not shown) has three series resistors between signal input and a reference supply, and a transistor having collector and base across the first resistor and base and emitter across the second resistor, the emitter providing the output.
Patent GB-1375010-A (GB)
IPC: G06F7/02
Filed: 1971-12-23
Abstract: 1375010 Digital computers; comparing vector streams TEXAS INSTRUMENTS Inc 23 Dec 1971 [4 Jan 1971] 60070/71 Heading G4A A digital electric computing system is arranged to receive two vector streams, to compare corresponding elements thereof, and to indicate the relationship between said elements. A vector x is an ordered array of elements (x 1 , x 2 , x 3  ... xx y ( x ) where x 1  is the ith component of vector x and the number of components v(x) is called the dimension of x. A numerical vector x may be multiplied by numerical quantity k to produce the scalor times vector multiply kx X(or kx) defined as vector z where z 1  = kxX 1 . A matrix M may be formed from a two dimensional array of elements. Two vector streams A, B are applied to respective input registers 11 and 13 and respective elements compared in logic 15. If an element of A is greater than B, a 1 is set in CG in register 19, if A<B a 1 is set in CL, if A=B a 1 is set in CE. The other bits are set to 0. A register 23 holds three bits of an option field of a vector comparison instruction and these bits are compared with the bits in register 19 in logic 21, agreement causing setting of a flip-flop 25. The number of elements agreeing is counted in circuitry 27, 29.
Patent GB-1370637-A (GB)
Title: Label transfer wheel
IPC: B65C9/14
Filed: 1971-12-29
Abstract: 1370637 Label transfer wheel XEROX CORP 29 Dec 1971 [5 Jan 1971] 60519/71 Heading B8F [Also in Division B6] A suction label transfer wheel rotates about axis 36 in the direction shown, to carry a label on raised land 30 between label receiving and discharging positions; vacuum ports 48 open on to the leading end 47 of the land and a groove 46 extends from each port for at least a label length along the land. Port 41 communicates with ports 48 via 42, 58, for the period the label is to be held, with a vacuum distributer. At the label receiving position the label edge is attracted to ports 48; this puts them out of direct communication with the atmosphere and causes the vacuum force in grooves 46 to increase particularly just in front of the label. The relatively high vacuum in the grooves 46 draws the label progressively into contact with the rotating land reducing the possibility of an unattended label portion or buckling or creasing. Electric heating means in the land are used to actuate adhesive on the labels. Elements 66 are shown inserted into the land but a resistive film may be applied to the land surface (Fig. 6, not shown).
Patent GB-1361194-A (GB)
Title: Roof sarking material
IPC: B29C48/10
Filed: 1971-11-05
Abstract: 1361194 Plastics sheet materials BRITISH VISQUEEN Ltd 5 Nov 1971 [22 Dec 1970] 60905/70 Heading C3P [Also in Divisions B5 and E1] Roof sarking material comprises a plastics sheet having incorporated in at least a surface layer thereof particles of an inert additive. The plastics material may be polyethylene, and the additive may be silica, silicates, aluminosilicates, powdered glass, talc, mica or silicon carbide, or a particulate polymeric material, e.g. high density polyethylene, polypropylene, polyester, polycarbonate or polyamide, preferably such that 85% thereof is of particle size 200 to 250 microns. The additive may be incorporated in the plastics material, or adhered to the surface thereof by radiant heating. Alternatively the sheet may comprise a plurality of coextruded layers, at least one outer layer containing additive. The sheet may be microperforated. In an example a sheet comprises polyethylene and particulate polypropylene.
Patent GB-611091-A (GB)
Abstract: 611,091. Transfer and zeroizing mechanisms. KOOPERATIVA FORBUNDET, FORENING, U.P.A. April 18, 1946, No. 12069. Convention date, April 26, 1945. [Class 106 (i)] A tens transfer device has transfer teeth adapted to shift the wheel of next higher denomination through a rotatably-mounted preparatory member, adjustable into preparatory position and being adapted at each working cycle to be rotated one step only in the direction intended for effecting the transfer and to be blocked against turning in the opposite direction, projections being provided on the preparatory member to serve as stops for the transfer tooth when the counter is being zeroized. The machine described has a grand totalizer 5, Fig. 1 (not shown), incorporating transfer mechanism of the type described in Specification 509,450, and a listing totalizer 9 incorporating transfer mechanism according to the invention. In operation, the actuating racks are set differentially under the control of keys and a frame 11 is moved to the left to engage the totalizer wheels 9 with the racks which then descend to home position to enter the amount into the wheels. In passing through zero position, a transfer tooth 17 secured to a numeral wheel engages a projection 20 on a composite preparatory wheel 19 to turn it a small amount to the position shown in Fig. 4. The frame 11 then moves to the right to disengage the wheels 9 from the racks and a tens transfer member associated with the grand totalizer depresses a pin 38 to swing a releasing disc 31 counterclockwise to the position shown in Fig. 5, the forward end of a cam face 34 striking a projection 21 to turn the preparatory wheel 19 a further amount, whereby a tooth 35 imparts a step to the wheel 9 of next higher denomination, overthrow of which is prevented by an arm 41 which engages the wheel 9 only when the totalizer wheels are disengaged from the actuators. Return movement of the member ensues without disturbing the wheel 19. Zeroizing. The total on the listing totalizer is transferred to the grand totalizer by engaging the wheels 9 with the racks when they are in lowermost position, so that, when the racks rise, each wheel 9 is rotated reversely until the tooth 17 hits one of the projections 20 as the wheel 9 reaches zero position. The listing totalizer is then disengaged and the grand totalizer is engaged with the racks which return to home position to transfer the amount to the grand totalizer. The total so transferred may be printed and indicated in known manner.
Patent GB-650549-A (GB)
Abstract: 650,549. Converting. RADIO CORPORATION OF AMERICA. Dec. 19, 1947, No. 33542. Convention date, Dec. 26, 1946. [Class 38 (ii)] In a power recovery system of the type in which the energy in an inductive load, such as the horizontal deflecting coils 14 of a cathoderay tube 26, when supplied with cyclically varying current from a power output valve 10 is utilized to charge, over a rectifier, such as a diode 40, a condenser 42 included in the anode supply lead of valve 10 so as to boost the voltage applied to the latter, a triode 36 is connected in parallel with the diode-condenser circuit which two valves become conductive at the end of the flyback so as to develop a substantially constant voltage across the condenser and reduce undesired oscillations in the system during a portion of each current cycle by applying to the grid 44 of the triode a cyclically varying voltage of such wave form to provide a current in the valve 36 which, when added to that in the diode 40 ensures linearity of the current in the deflecting coils 14. Such grid voltage may be derived through a resistor 60 from a voltage differentiating circuit comprising a condenser 48 and resistors 50, 52 connected across the triode through a resistor 56 and byepass condenser 58 so that the voltage appearing at the grid as represented by the wave form 46 has two exponential positions, the first, when the grid is positive being a fast decaying transient when the resistors 50, 52 are shunted by the grid cathode path and the other when the grid is negative being a slow decaying transient. A potentiometer resistor 23 may be included for centring purposes, having that portion included in the coil circuit shunted by a capacitor 62 to provide a low impedance path for the beam reflection current. An adjustable reactance element such as a variable inductance 64 may be connected across all or part of the transformer secondary winding 22 supply the coils, so as to control the width of the image raster of the tube. Specification 613,053 is referred to.
Patent GB-680552-A (GB)
Abstract: 680,552. Kitchen ranges. FEDERATED FOUNDRIES, Ltd., and SILVER, R. S. Oct. 3, 1950 [Oct. 5, 1949], No. 25580/49. Class 126 The air supply for combustion in a domestic cooking range of the side oven type is preheated by passing it through a tortuous passage connecting an air chamber located below the oven and at the side of the ash space with the underside of the firegrate. In the range shown combustion air enters a chamber f below the oven c through a hit-and-miss regulator controlled inlet and passes from thence to the ash space j below the grate a through a passage i which extends from front to rear of the range between the chamber f and the ash space. This passage is provided with a central baffle k and discharges into the ash space towards the top thereof. Extending from the ash space and between the grate a and the front of the range is a passage m for secondary air which flows when the door opening on to the grate is closed. The range is provided with a boiler b and hot plate p.
Patent GB-2001454-A (GB)
Title: Electronic programmer
IPC: D06F33/37
Filed: 1978-07-14
Abstract: A microprocessor (28) based electronic sequence programmer for use e.g. in a washing machine is arranged to control the machine (via interface 33) through an operating cycle with various parameters of the machine being set in accordance with stored (at 31) values appropriate to the operating cycle. The programmer causes the display (through interface 32) of suitable values of parameters (e.g. in its application to a washing machine, the amount of detergent to be used) which are set by the microprocessor, in accordance with other parameters (e.g. fabric type, colour, load and degree of soiling of the clothes to be washed) selected (at 26) by the operator. The sequence of operations controlled by the microprocessor then represents an optimum in terms of energy consumption and operating effectiveness. <IMAGE>