baber/WOPTO huggingface dataset:
Patent GB-1045970-A (GB)
Title: High temperature material based on tantalum and/or niobium carbide
IPC: C22C29/06
Filed: 1963-11-20
Abstract: A high temperature material has a carbide phase based on niobium and/or tantalum carbide and a metal phase based on tungsten and/or molybdenum. The atomic percentages of the constituents are such that (a) <FORM:1045970/C6-C7/1> is between 0 and 1, (b) <FORM:1045970/C6-C7/2> is between 0 and 1, (c) C is between 5 and 40 and Ta + Nb is between U and V where U = 5.4 - 4.4 a - 5.15b + 0.94c + 5.15ab - 0.04 ac + 0.21 bc - 0.11 abc V = 56 - 5a - 37b + 5ab + 0.15 ac + 0.9 bc - 0.3 abc.  Up to 90 mol per cent of the niobium or tantalum may be replaced by hafnium, zirconium or titanium or mixtures thereof.  The carbide phase may also include up to 40 mol per cent tungsten and/or molybdenum carbide and the metal phase may include up to 60 at. per cent niobium and/or up to 30 at. per cent tantalum.  Up to 5% by weight or iron group metals may be included. The material may be produced by pressing a powder including an iron group metal and vacuum sintering the compact e.g. at 1530-1650 DEG C. Alternatively, the powder may be pressed without the iron group metal, vacuum sintered at 1500-2200 DEG C and impregnated with Ag and/or Cu.  As a further alternative, the metal phase may be in the form of fibres or even wire nets or grids to which the carbide is attached by sintering.
Patent GB-943520-A (GB)
Title: Method of winding threads
IPC: D02G1/02
Filed: 1961-12-21
Abstract: 943, 520. Finishing yarns; twisting. SOC. RHODIACETA. Dec. 21,1961 [Dec. 23, 1960], No. 45843/61. Headings DID and D1F. A process for imparting a false twist to a yarn comprises drawing the yarn over a surface 4 having a high coefficient of friction, and causing the yarn to have a sideways to-and-fro displacement on that surface, said displacement being due to the traverse of the yarn in a winding process. As shown the yarn is drawn over a heated plate 2, and thence over a synthetic rubber rod 4 to a grooved drum 5 that traverses the yarn on to a take-up support 6. The yarn may have a base of polyamides, polyesters, polyolefines, polyacrylonitrile, polyvinyl chloride or the like.
Patent GB-1327111-A (GB)
Title: Process for preparing a low density, porous, thermoset resin
IPC: C08F283/01
Filed: 1970-09-25
Abstract: 1327111 Porous polyester resins DOW CHEMICAL CO 25 Sept 1970 [26 Sept 1969] 45847/70 Headings C3C and C3P A porous thermoset resin is made by (A) forming a water-in-resin emulsion, the resin comprising (1) an unsaturated polyester resin and/or a vinyl ester resin which is prepared by reacting equivalent quantities of an ethylenically unsaturated monocarboxylic acid with a polyepoxide, and optionally further reacting the resin with a dicarboxylic acid anhydride, and (2) one or more monomers copolymerizable with (1), the emulsion also contains 0À005-10% by wt. of a polyalkylene oxide block copolymer non-ionic surfactant consisting of polyalkylene oxide units and having a hydrophobic group with a molecular wt. of at least 1,000, (B) curing the emulsion, and (C) removing at least part of the water from the cured emulsion. In the examples an unsaturated polyester resin derived from orthophthalic-maleic anhydride and glycol, or a vinyl ester resin derived from methacrylic acid, a polyglycidyl ether of bisphenol A and optionally an epoxy novolac, tetrabromobisphenol A or maleic anhydride, was emulsified with water, styrene, acrylonitrile or butylacrylate, benzoyl peroxide, N-N-dimethylaniline or N - N - dimethyl - p - toluidine, butyl benzyl phthalate, the block copolymer surfactant derived from propylene and ethylene oxides and a monohydric aliphatic alcohol or propylene glycol, paraffin wax, microspheres, and/or a sodium sulphate derivative of 7-ethyl-2-methyl- 4-undecanol; the emulsion was poured into a mould, cured and dried to produce a porous resin.
Patent GB-1335000-A (GB)
Title: Composition for protecting materials
IPC: A01N47/18
Filed: 1972-10-06
Abstract: 1335000 Microbiocidal composition RIEDEL-DE HAEN AG 6 Oct 1972 [8 Oct 1971] 46239/72 Heading ASE A composition for protecting materials against attack by micro organisms comprises methyl 2 - benzimidazolyl carbamate and 3,5 - dimethyl - tetrahydro - 1,3,5 - thiadiazine - 2 - thione in a ratio between 1:20 and 20:1 by weight.
Patent GB-1214842-A (GB)
Title: Reciprocating concrete pump
Inventor: GREGORY STANLEY JOHN
IPC: F04B7/00
Filed: 1967-10-11
Abstract: 1,214,842. Reciprocating concrete pumps. WINGET Ltd. Sept.11, 1968 [Oct.11, 1967], No.46416/67. Heading F1A. A reciprocating concrete pump comprises two piston/cylinder assemblies 12, 14 a concrete storage hopper 1 having an outlet 2, 3 communicating through a flexible hose 2A, 3A and a slide valve 6A with one of the piston/cylinder assemblies whilst the other assembly is connected through the valve with a delivery line 15 and vice versa, the hose being connected with the slide member 6 of the slide valve so as to move therewith. The hose 2A, 3A is made from rubber or synthetic rubber and the valve member 6 is operated by an air or hydraulically operated cylinder (6B) Fig. 3 (not shown). The valve member 6 slides in the valve body 10 and in one operative position the piston 16 on its suction stroke draws cement via opening 9 and hose 2A from outlet 2 into cylinder 12 and simultaneously piston 17 discharges concrete via opening 8 to the delivery line 15. Hose 3A is then blanked off. In the other operative position, as shown in broken outline, concrete is discharged from cylinder 12 and simultaneously piston 17 draws concrete from outlet 3; In another embodiment, Fig. 4 (not shown) there are only two flexible hoses (2B) and (3B) and a single delivery line 15. Alternatively Fig. 5 (not shown) comprises a single outlet 18 from the hopper and two delivery lines 23, 24 and Fig. 6 (not shown) shows another embodiment which is similar to the latter but has only two flexible hoses.
Patent GB-1527743-A (GB)
Title: Internal combustion engine having adjustable valve gear
IPC: F01L31/00
Filed: 1975-11-12
Abstract: 1527743 Adjustable valve gear B KOSTECKI E KOSTECKI 12 Nov 1975 [12 Nov 1974 and 4 Sept 1975] 46767/75 Heading F1B The outer ends of a pair of levers 2, 3 are movable by respective members 6, 7 during engine operation to vary the valve timing and opening duration. In the embodiment shown the inner ends of the levers 2, 3 are pivoted at 5 to the rocker 4. The levers may be pivoted to a bucket tappet (4a), Fig. 2 (not shown) or interposed between the cam 1 and the tappet, Fig. 3 (not shown), or a rocker having sliding engagement therewith. The inner ends of the levers 2, 3 may be pivotally connected to a member fixed to the rocker arm or tappet. The inner ends of the levers may operate a piston which actuates the value hydraulically.
Patent GB-1083594-A (GB)
Title: New epoxy ethers, their preparation and cured products obtained therefrom
IPC: C08G59/08
Filed: 1964-11-17
Abstract: Novel epoxy resins of formula <FORM:1083594/C3/1> where x is an integer from 0 to 10 and at least one of the p-phenylene radicals is substituted with a methylol group, no other substituents being present, are prepared by reacting the corresponding phenol with epichlorohydrin or a -dichlorohydrin in a mole ratio of at least 1:1.1 in the presence of alkaline material.  The resins may be polymerized alone or with other polyepoxides.  Lists of conventional curing agents are given. Other ingredients include monoglycidyl ethers, drying oils, cellulose derivatives, vinyl polymers, coal tars, pine oils, bituminous materials and fillers.ALSO:The invention comprises polyglycidyl ethers of formula <FORM:1083594/C2/1> where x is an integer from 0 to 10 and at least one of the p-phenylene radicals is substituted with a methylol group, no other substituents being present.  They may be prepared by reacting the corresponding phenol with epichlorohydrin or a -dichlorohydrin in a mole ratio of at least 1:1.1 in the presence of an alkaline material.  The higher molcular weight compounds may also be obtained by reacting a diglycidyl ether of methylol-substituted 2,2-bis(4-hydroxyphenyl)propane with a less than equivalent amount of 2,2-bis(4-hydroxyphenyl)-propane.
Patent GB-1510563-A (GB)
Title: Method of laterally shifting material from an elongated spoil bank
IPC: E02F3/76
Filed: 1976-01-23
Abstract: 1510563 Method of laterally shifting material from an elongated spoil bank FIAT-ALLIS CONSTRUCTION MACHINERY INC 23 Jan 1976 [27 Jan 1975] 46835/77 Divided out of 1510562 Heading E1F A method of laterally shifting material from an elongated spoil bank down the slopes thereof by means of an angle dozing apparatus such as described in the referred to Parent Specification involves moving the apparatus along one side of the top of the bank with the blade adjusted at a suitable blade angle, at a suitable depth of cut, and at a suitable tilt angle to shift material down one side of the bank; re-adjusting the blade to change the blade angle, depth of cut and blade tilt angle to appropriately cope with the new conditions on the top of the bank; and moving the apparatus in the opposite direction along the other side of the top of the bank. The method is primarily employed in reclaiming of strip mined land by filling in the valleys between parallel spoil banks left after the mining of the land and the cycle of operations of the above described method is repeated with appropriate re-setting of the blade at each pass of the apparatus along the bank until the land is left level.
Patent GB-1204525-A (GB)
Title: Improvements in or relating to power control systems
Inventor: TYLEY LEONARD RICHARD
IPC: H02P9/00
Filed: 1967-10-13
Abstract: 1,204,525. Automatic temperature control systems. DIAMOND H CONTROLS Ltd. Oct.11, 1968 [Oct.13, 1967], No.46851/67. Heading G3R. [Also in Division H2] An arrangement for providing to a load, groups of half cycles corresponding in number to the magnitude of a variable parameter has a source of first pulses of constant amplitude which are modified in magnitude by a control element, a breakdown switch which transmits the modified pulses to a ramp generator, a chopper circuit also fed with the first pulses which provide second pulses of instantaneous value equal to the ramp voltage, and an output device which provides a pulse each time a second pulse exceeds a threshhold value. The parameter may be developed manually e.g. a potential divider or automatically e.g. from a temperature sensitive resistor or a tachogenerator representative of motor speed. Pulses from a full wave rectifier 1 are clipped by a circuit 3-7 and passed through a transistor 15 with unchanging amplitude, the output pulses from which are stabilized by a Zener diode 16 and passed to a potential divider comprising a temperature sensitive resistor 17, and a setting resist- or 18. When the potential at the junction of 17, 18 exceeds the break-over voltage of a device 21, a capacitor 22 charges to the junction potential, which charge passes through a diode 24 to another capacitor 25. The charge on capacitor 22 blocks the device 21 until the charge falls to a releasing value. Discharge of capacitor 22 through resistor 23 and capacitor 25 through resistors 26, 27 produce ramp signals, that from capacitor 25 being applied together with constant amplitude pulses to control electrodes of a transistor 28 which develops instantaneous pulses equal in height to the ramp voltage. When these are greater than a voltage developed across a resistor 31, a transistor 32 conducts to produce constant amplitude pulses in a thyristor firing transformer 33. As temperature sensitive resistor 17 receives pulses, its heat dissipation is less than that produced by a constant current. Resistor 23 varies the proportional band.
Patent GB-1015879-A (GB)
Title: Improvements in and relating to solderable metal coatings on non-metallic carrier bodies
IPC: C03C17/40
Filed: 1964-11-18
Abstract: Inorganic non metallic bodies such as glass, ceramic porcelain and sintered oxides are coated with a solderable metallic coating in a process comprising vapour depositing in an oxidizing atmosphere at least one of Co, Ni or Mn on the body which is heated to at least 200 DEG C., vapour depositing a second layer of Cu and a final layer of a solder of Sn or Ag. The first layer of e.g. Ni is formed in an oxygen atmosphere of 10-4 mm. Hg. to a thickness of 100<\>rA, the Cu layer is about 1m  thick and the solder is also about 1m  thick.
Patent GB-1021837-A (GB)
Title: Improvements in or relating to latch mechanisms
IPC: E05C3/36
Filed: 1962-12-19
Abstract: 1,021,837. Latch fastenings. WARTSILAYHTYMA OY WARTSILA-KONCERNEN A.B. Dec. 19, 1962 [Dec. 19, 1961], No. 47875/62. Heading E2A. A latch mechanism for mounting on the inside surface of a door of a building and adapted to be operated from outside the door by a cylinder lock and to coact with a toothed keeper fastened to the door frame, comprises a base member 1 and a handle 12 adapted to be mounted on the inside surface of the door, a gear bolt 2 and a ratchet wheel 4 mounted on a common spindle 3 rotatable in a bearing 5 carried by the base member, a ratchet pawl 6 and a spring 9<SP>1</SP> acting on the pawl both carried by the base member, a push button 13 carried by the handle and a cylinder lock in the push button having a stem 16 carrying a part 17 which when the push button is pushed down rotates the pawl so that it releases the ratchet wheel and bolt for free rotation. In the construction shown, a cover 10 is fastened to the base member 1 to cover the mechanism and in the cover is a socket which receives a head 11 of the handle so that the handle can be positioned as desired relative to the cover. The stem 16 of the cylinder lock in the push button carries a pin 20 which in the unlocked position of this lock is movable by depression of the push button through an opening 21 in the base 15 of the handle head 11 but which when the lock is rotated to locked position abuts one side or other of the base 15 of the head 11 so that the push button is either held in its normal position in which case the bolt cannot be released or it is held depressed in which case the pawl is out of contact with the ratchet wheel and the bolt is free to rotate. A sliding catch member 19 is also provided on the handle which is engageable with the push button to hold it depressed. A cam 22<SP>1</SP> is rotatably mounted on the base member 1 and this has an aperture for connection to the stem of the cylinder lock mounted on the outside of the door so that rotation of this cylinder lock rotates the cam and since the cam engages the pawl it frees the pawl from the ratchet wheel to allow the door to be opened from the outside. The keeper, Fig. 5, comprises a rack 24 carried by a frame 23. The frame has a base portion and two arms 28 which are connected to the base portions at one end only so that the rack 24 can be clamped between the arms and the base portion by screws 31. This enables the position of the rack to be adjusted.
Patent GB-1025340-A (GB)
Title: Adjustable bed
IPC: A61G7/012
Filed: 1963-12-05
Abstract: 1,025,340. Adjustable beds. BORGWARNER CORPORATION. Dec. 5, 1963 [Jan. 14, 1963], No. 48115/63. Heading A4J. [Also in Division H2]  An adjustable bed comprises a relatively fixed frame 21, a movable frame 22 and a mattress support frame 23. The movable frame 22 is supported on the fixed frame 21 by head and foot elevation linkages 25, 26 respectively. Linkages 25, 26 each include a pair of channel supports 70 rigidly secured to movable frame 22. Arms 72 are pivoted at 75 to supports 70 and at 73 to fixed frame 21. Arms 80 are rigid with arms 72 and are connected through pivoted links 81, square pins 83 Fig. 8 (not shown) and a latch 115 to a channel 85. This channel is slidably supported on rails 91 of a bracket 90 which is secured to a channel 39. A screw 97 is threaded through a nut 96 secured to a channel 39. A motor 101 drives screw 97 and nut 96 and causes channel 85 to move on support bracket 90. Motor 101 is operated by a pedal 125, Fig. 3 (not shown). Pressure on tread 137 of the pedal, Fig. 11 (not shown) causes link 139 and plate 142 to move a toggle 156 to a position E in which a switch 127 is closed to drive motor 101 in a forward direction to rotate screw 97 to drive channel 85, pins 83 and links 81 to the right to cause arms 80, 72 to rotate counter-clockwise and to raise the frame 22. Pressure on tread 138 lowers the frame 22. The frame is held in adjusted position by a brake B of motor 101. Each square peg 83 is slidably positioned in a slot 84 in channel 85 and is engageable by a notch 117 in latch 115 which is pivoted at 116 within channel 85. Springs 119 bias shaft 116 in a clockwise direction to cause latch 115 to engage square peg 83. Latches 115 may be pivoted counter-clockwise to release them from pins 83 by means of links 164, 165 having lost motion connection with links 160, 161 actuated by pedals 128, 129 respectively. A back panel 50 and an upper knee panel 52 of mattress support frame 23 are raised or lowered by linkage 28, 29 respectively. Linkage 28 is driven by a motor 186 and linkage 29 by a motor 205.
Patent GB-1164837-A (GB)
Title: Logarithmic Amplifier
Inventor: MADDEN DONOVAN RONALD
IPC: G06G7/24
Filed: 1966-10-26
Abstract: 1,164,837. Logarithmic circuits. NATIONAL RESEARCH DEVELOPMENT CORP. 19 Oct, 1967 [26 Oct., 1966], No. 48140/66. Heading G4G. Logarithmic circuit (Fig. 4) comprises plural cascaded identical triode stages V 1A , V 1B  &c. wherein each stage is biased by an unbypassed cathodic resistor affording large negative feedback, and is also positively biased from a potential divider R 27 , R 28  across the anode supply to operate on a linear part of its characteristic. The anode circuit of each triode is connected over capacitance and series resistance to the grid of the subsequent triode, and is shunted to earth over oppositely poled biased diodes and symmetrical potential divider D 1 , D 2  . . . D 3 , D 4  and symmetrical potential dividers comprising resistors R 5 , R 6 , R 7 , R 8 , R 9  . . . R 16 , R 17 , R 18 , R 19 , R 20  wherein R 6  = R 9 , R 7  = R 8  . . . R 17  = R 20 , R 18  = R 19  which are energized from potential divider R 27 , R 28 . When the anode output of each stage is less than or equal to a critical value E the diodes are nonconductive and the gain of each stage is constant for inputs <E/G but when the anode output exceeds the critical value the diodes conduct on opposite excursions of signal, and shunt the appropriate grid resistances R 5  . . . R 16  so that the stage gain is reduced to unity for that part of the input > E/G (Fig. 2). The output of the ultimate triode stage feeds a pentode amplifier V 4  feeding a diode demodulator D 5 . It is shown by mathematics that for plural stages the output is a logarithmic function of the input. The valves are replaceable by transistors. Representative component values are quoted.
Patent GB-1477157-A (GB)
Title: Ascertaining the oxide content of a melt based on a salt
IPC: G01N33/20
Filed: 1974-11-11
Abstract: 1477157 Estimating oxide content of molten electrolytes SWISS ALUMINIUM Ltd 11 Nov 1974 [13 Nov 1973] 48663/74 Heading G1B The oxide content of a molten electrolyte is estimated by immersing a piece of soluble test material and comparing its rate of solution with previously accertained values. The rate of solution may be determined by measuring the amount of test piece removed in known time, by constantly measuring the weight, by measuring the time to break through the wall of a hollow test piece or to remove a coating of test material from a substrate or by visual examination. The major constituent of the test piece may be a metal oxide, as listed, halide, carbide, or nitride.
Patent GB-1206159-A (GB)
Title: Integrated circuit components in insulated islands of integrated semiconductor materials in a single substrate
Inventor: BEAN KENNETH ELWOOD
IPC: H01L21/00
Filed: 1967-10-26
Abstract: 1,206,159. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 26 Oct., 1967 [30 Dec., 1966], No. 48770/67. Heading H1K. In an integrated circuit having isolated islands of semi-conductor material supported by a common substrate, the semi-conductor material (or its crystallographic orientation) may differ between the various islands and/or between the islands and the substrate if the latter is also made of a semi-conductor. Suitable semiconductors are silicon, germanium, gallium arsenide, indium arsenide, and cadmium sulphide. (They may be used in transistors, lightemitting diodes, and in infra-red detectors). Suitable substrate materials are the foregoing semi-conductors, alumina, beryllia, silicon carbide, and molybdenum; non-insulators among these are isolated from the islands they carry by silicon oxide, nitride or carbide layers. Fig. 1g represents an apertured silicon substrate (for example) and shows a vapour grown semi-conductor mass 11 in the hole 4 formed epitaxially on the seed crystal 9 clamped to the substrate. The hole may be completely filled or, as shown, left partly filled. The seed crystal 9 is lapped or etched away. In a previous operation another monocrystalline mass 8, of a different semi-conductor or of the same semi-conductor but with different doping or crystallographic orientation, has been grown on a seed now removed. Deposition of semiconductor (11) on this other mass during the later process is prevented by the provision of a sealing plate 7 such as a scrap wafer. Fig. 3b shows part of a logic circuit in which six high speed transistors (Q 6  only is shown) are formed in germanium islands oxide-isolated from the silicon substrate 30 in which is formed the output power transistor Q 7 . Fig. 4a shows part of an array of light-emitting gallium arsenide diodes 52 oxide-isolated from a silicon substrate 46 and a gallium arsenophosphide ground plane 64.
Patent GB-1135720-A (GB)
Title: Improvements in or relating to centrifuges
IPC: B04B1/20
Filed: 1967-10-30
Abstract: 1,135,720. Centrifugal separator. BIRD MACHINE CO. 30 Oct., 1967 [9 Nov., 1966], No. 49251/67. Heading B2P. In a screw centrifuge slurry to be treated is fed through a pipe 34 into a main feed compartment 56 formed inside the screw conveyor hub 19 and separated by means of a splash baffle 52 from a secondary feed compartment 58 in which is located a chamber 64 which receives a secondary fluid, e.g. flocculant or wash water, fed through a pipe 40 surrounding the pipe 34. The slurry enters into the interior of the bowl 10 through openings 62 in the hub 19 and the slurry does so through one or more pipes 80 extending radially through enlarged holes 82 in the hub. Any slurry that splashes from compartment 56 through an opening 60 in the baffle 52 tends to be thrown radially outwardly, to enter the flow space between the wall 68 of the chamber 64 and the hub 19, and to pass into the bowl 10 through the holes 82. The chamber 64 has a frusto-conical wall 70 and a sleeve portion 72 which effectively prevent the slurry from entering the chamber. The solids separated by centrifugal force are moved along the wall of the bowl by the screw conveyor 17 toward and out through openings 85 into a solids discharge chamber 84. The separated liquid enters through openings 50 into a hub enlargement 48 to be scooped up by a skimmer 46 at the forward end of a liquid effluent pipe 42 which is eccentrically mounted for rotation on the pipe 40.