baber/WOPTO huggingface dataset:
Patent GB-1141980-A (GB)
Title: Negative resistance device
IPC: H01L27/07
Filed: 1967-12-20
Abstract: 1,141,980. Controllable negative resistance device. INTERNATIONAL BUSINESS MACHINES CORP. 20 Dec., 1967 [13 Jan., 1967], No. 57988/67. Heading H1K. The threshold voltage at which the negative resistance through an insulator disposed between a semi-conductor body and a metal electrode occurs is controlled by varying the voltage on a rectifying electrode across a PN junction laterally spaced from the insulatorsemi-conductor interface by at least a minority carrier diffusion length. In a typical embodiment the semi-conductor is P or N-type silicon, the metal electrode of aluminium, silver or gold and the insulator silicon dioxide which has been doped with gallium phosphide or gallium by exposure at 800‹ C. to the vapour thereof. Alternative insulators suggested are gallium arsenide and cadmium sulphide. The device is switchable from the high to the low resistance condition and back by means of pulses of respectively opposite polarity applied to the control electrode or junction.
Patent GB-1341087-A (GB)
Title: Bearing assemblies for example intermediate shaft bearing assem blies in motor vehicles
IPC: F16C27/06
Filed: 1971-12-14
Abstract: 1341087 Resilient mountings DAIMLERBENZ AG 14 Dec 1971 [15 Dec 1970] 58013/71 Headings F2A and F2S A resilient mounting for a bearing assembly comprises a plurality of peripherally distributed web members 16 connecting and located between concentric rigid rings 10, 14, the inner one 14 of which accommodates the bearing assembly, and resilient abutments 17 between the web members and attached to one of said rings. The parts 16, 17 are of rubber, with or without strengthening inserts, and there may be a layer 19 of rubber over the outer surface of the inner ring. The cross-sectional area of the abutments 17 may be smaller than that of the web members 16. The inner ring 14 has an inwardly directed flange against which the bearing seats, and the outer ring 10 is in two parts 11, 12, of which one 11 has a channel-shaped cross-section.
Patent GB-1410809-A (GB)
Title: Polyether urethane elastomer
IPC: C08G18/10
Filed: 1972-12-15
Abstract: 1410809 Polyetherurethane elastomers BRIDGESTONE TIRE CO Ltd 15 Dec 1972 [16 Dec 1971] 58173/72 Heading C3R Polyetherurethane elastomers are prepared from a polyisocyanate, a curing agent and a mixture of polyethers having active hydrogen terminal groups. the weight average M.W. of the polyether mixture being from 4500 to 20,000 and the M.W. distribution curve of the polyether mixture having at least two peaks, at least one of which is located in the M.W. region higher than the critical M.W. of the polyether mixture if it has a single critical M.W. or higher than the higher or highest critical M.W. of the polyether mixture if it has two or more critical molecular weights, and at least another of the peaks being located in the M.W. region lower than the, or the lower or the lowest critical molecular weight of the polyether, as the case may be; the molar ratio of active hydrogen terminal groups to isocyanate groups being 0.7 to 1.2 : 1. The reaction may be carried out by the one-stage or two-stage process. Suitably, the curing agent is a polyamine or a polyol. In a typical example a polytetramethylene glycol of M.W. 9500 and a polytetramethylene glycol of M.W. 1900 are mixed and the mixture is reacted with 2,4-tolylene diisocyanate to form a prepolymer which is then cured by reaction with methylene bis-orthochloroaniline.
Patent GB-1445893-A (GB)
Title: Photographic dye developer diffusion-transfer element and process
IPC: G03C8/36
Filed: 1973-12-14
Abstract: 1445893 Preparation of tetrahydroxytetramethyl-bis-1,1<SP>1</SP>-spirohydroindene FUJI PHOTO FILM CO Ltd 14 Dec 1973 [14 Dec 1972] 58180/73 Heading C2C [Also in Division G2] 5,5<SP>1</SP>,6,6<SP>1</SP> - Tetrahydroxy - 3,3,3<SP>1</SP>,3<SP>1</SP> - tetramethyl-bis-1,1<SP>1</SP>-spirohydrindene is prepared by refluxing 1,2-dihydroxybenzene in acetone, glacial acetic acid and 12N hydrochloric acid.
Patent GB-1371939-A (GB)
Title: Pyridine carboxamides
IPC: C07D213/81
Filed: 1972-12-18
Abstract: 1371939 Pyridine carboxamides SOC D'ETUDES ET APPLICATIONS CHIMIQUES and C DUFOUR 18 Dec 1972 [24 Dec 1971] 58349/72 Heading C2C Novel compounds (I) (including salts and N-oxides, thereof) where R 1  is F, Cl or Br and R 2  is C 1  to C 6  alkoxy or optionally substituted aryloxy, are made by standard methods from the corresponding acids and acid chlorides.  Pharmaceutical preparations showing analgesic, anticonvulsant and hypnotic actions contain (I) as active ingredient; administration may be orally or parenterally.
Patent GB-1336877-A (GB)
Title: Gear shifting arrangement for speed-change gearboxes
IPC: F16H61/30
Filed: 1970-12-09
Abstract: 1336877 Change-speed control DR ING hcF PORSCHE AG 9 Dec 1970 [9 Dec 1969] 58433/70 Heading F2D  A compressed-air follow-up servo, for providing power assistance to axial gear-establishing movements of a slide-turn rod (8), actuated by a ball-mounted manual shift lever of a motorvehicle transmission, comprises a concentric arrangement of a stationary cylinder 4, a piston 27 fast on an axially slidable tube 15, secured to an output member 10, and spring-loaded discvalves 29 ... 32, slidable on an inner tube 13, secured to an input member 12, the valves being arranged in an annular space between the concentric input and output tubes 13, 15. Turning movement of the input 12, for cross shift, is transmitted positively to output 10 through a transverse pin 17 which also transmits pressure air through the tube to a central chamber 20, whence it is fed to one side or the other 25, 26 of the piston 27, in accordance with the direction of axial movement of the input member 12, 13, which, through two of four stops 36 ... 39, causes unseating of one valve 30 or 31 for pressure supply to one side, and of another valve 32 or 29 for exhaust from the opposite side through end vents 40 or 42. In Fig. 1 (not shown) the servo is mounted in a slide-turn rod of a remote control, or it may be mounted on the transmission casing.
Patent GB-1329459-A (GB)
Title: Organopolysiloxane compositions
IPC: C09J183/00
Filed: 1970-12-10
Abstract: 1329459 Organopolysiloxane compositions WACKER-CHEMIE GmbH 10 Dec 1970 [23 Dec 1969] 58715/70 Heading C3T A composition stable under anhydrous conditions but hardens on contact with water at room temperature to form an elastomer comprises a diorganopolysiloxane containing reactive terminal groups, a silicon compound containing at least 3 hydrolysable groups, at least some of which are amino groups bound with Si through nitrogen, and any other of which are oxime groups, and a silane containing at least 1 amino group bound with Si through C and at least one monovalent hydrocarbon (h.c.) radical, optionally substituted by an amino or alkoxy group, bound with Si through oxygen. The silane is preferably of the formula in which R = substituted or unsubstituted h.c. radical, R<SP>1</SP> = monovalent h.c. radicals which may be substituted by amino or alkoxy groups, R<SP>11</SP> = H atom and/or h.c. radical, Z = oxygen or NR<SP>11</SP>, a and b are each 1, 2, or 3, a + b = 2, 3, or 4, m = 1-10, n = 0 or 1 and p = 1-10. Preferred silanes are or is N-#-aminoethyl-γ-aminopropyltriethoxysilane, N-#-aminoethyl-#-aminobutyltriethoxysilane, γ-aminopropyltriethoxysilane, N-#- aminoethyl - γ - aminopropyltris(methoxyethoxy)-silane or #-aminobutyltriethoxysilane. The silane is preferably present in an amount of from 0À1-10% wt. of the composition. The diorganopolysiloxane preferably has the formula (HO) x (SiRyO (4-y)/2)z H, wherein x is 0À99-1À01, y = 1À99-2À01, z is at least 3. Some of the OH groups may be replaced by other reactive terminal groups such as -NR 2 <SP>11</SP>, oxime groups, Si-bonded hydrogen atoms, alkoxy- or alkoxyalkoxy groups. The silicon compound may be a silane of the formula R c Si(NR 2 <SP>11</SP>) 4-c  or R 4-d-e - Si(ON#X) d (NR 2 <SP>11</SP>) e  where c = 0 or 1, d and e are each 1, 2 or 3, and d + e is 3 or 4 and X is R 2 <SP>11</SP>C = or R<SP>1</SP> = C =, where R<SP>1</SP> is a h.c. or substituted h.c. residue. The silicon compound is preferably used in amounts of 0À2-15% wt. of the composition. The compositions may also include reinforcing and non-reinforcing fillers such as SiO 2 , pigments, dyestuffs, organopoly. siloxane resins, purely organic resins such as p.v.c. powder, corrosion inhibitors, perfumes, antioxidants, heat stabilizers, solvents, condensation catalysts e.g. dibutyl tin dilaurate, dibutyltin salts of aliphatic carboxylic acids which are branched in the alpha position to the carboxyl group and contain 9 to 11 carbon atoms, and organosiloxytitanium compounds, as well as plasticizers such as liquid dimethylpolysiloxanes endblocked by trimethylsiloxy groups. Uses.-The compositions adhere to glass, porcelain, earthenware, concrete, mortar, aluminium, stainless steel, wood, paper, polystyrene and synthetic resins even without using primers, and are thus suitable for filling in joints, and hollows in buildings, land-, water- and aircraft, and also as adhesives or grouting compositions for producing protective coatings, for coating paper and for making insulations for electrical conductors.
Patent GB-587590-A (GB)
Abstract: 587,590. Crushing-apparatus. ROSS, W. Sept. 26, 1944, No. 18385. [Class 59] Apparatus for crushing raw ores, stone and other granular &c. materials incorporating an endless band type feeder and preferably a screen for removing small material have the end of the feeder and the crusher, or the screen, arranged in the same horizontal plane to avoid height. As shown in Fig. 2, a drop bar feeder 1, of the kind described in Specification 555,350, feeds the material to a roller screen 3b, 3c on a level therewith which passes the coarser material to crushing rollers 4. The arrangement shown in dotted lines, which may be combined with the present arrangement, shows the feeder placed above the screen as in prior practice. Fig. 4 shows a form in which screening takes place between the delivery end 1b of the feeder and the rear crusher 4a on a level therewith, screening rollers being dispensed with.
Patent GB-1199120-A (GB)
Title: Process for Separating Methanol from a Mixture Thereof With Methyl Acetate
Inventor: FRECHET PIERRE
IPC: B01D3/00
Filed: 1968-12-11
Abstract: 1,199,120. Sephrating methanol from methyl acetate. PHONE-POULENC S.A. 11 Dec., 1968 [12 Dec., 1967], No. 58946/68. Heading C2C. A process for the separation of methanol from a crude mixture thereof with methyl acetate containing non-volatile materials and optionally water, such as is obtained in the manufacture of polyvinyl alcohol by methanolysis of polyvinyl acetate, the methanol constituting at least 25% of the combined weight of methanol and methyl acetate comprises: feeding the said mixture to a first fractionation column heated by direct injection of steam; removing an essentially anhydrous mixture of the methanol and methyl acetate as vapour overhead from the said column and liquid water containing the said non-volatile materials from the foot of the said column; feeding the said mixture of methanol and methyl acetate from the said first column to a second fractionation column; removing an azeotropic mixture of methanol and methyl acetate overhead from the second column and a first fraction of essentially pure liquid methanol from the foot of the said second column; feeding the said azeotropic mixture of methanol and methyl acetate to a third fractionation column in which the said mixture is contacted with liquid water; removing a liquid mixture of water and methanol essentially free from methyl acetate from the foot of the said third column and a mixture of water and methyl acetate essentially free from methanol as overhead from the said third column; and rectifying the said liquid mixture of water and methanol from the said third column to separate a second fraction of substantially pure methanol therefrom. If the mixture is anhydrous, it is fed to the top of the first column and if it contains water, preferably to an intermediate point. The first column should be designed to avoid clogging with solid impurities.
Patent GB-1408949-A (GB)
Title: Elastomers
IPC: C08L63/00
Filed: 1972-12-21
Abstract: 1408949 Phenol-terminated elastomers; epoxy resin compositions B F GOODRICH CO 21 Dec 1972 59053/72 Headings C3B and C3P Phenol-terminated liquid elastomers are prepared by reacting a carboxyl-terminated diene polymer or copolymer, or a reactive derivative thereof, with a molar excess of a diphenol. In Example 1, a carboxyl-terminated butadiene/ acrylonitrile copolymer (prepared using azodicyanovaleric acid initiator) is first reacted with thionyl chloride to convert the -COOH groups to -COCl groups, which are then reacted with Bisphenol A. In Example 2, the same copolymer is reacted with Bisphenol A directly, but it is believed that the phenol groups in fact react with a 6-membered glutarimide ring formed by internal reaction of -COOH and -CN groups present in the elastomer from the original initiator. The phenol-terminated elastomers prepared above are used to impart impact resistance to epoxy resin compositions. Examples describe their use in making cured compositions from a mixture of a diglycidyl ether of Bisphenol A, Bisphenol A (in some cases), and piperidine.
Patent GB-1427264-A (GB)
Title: Process for producing synthetic coking coal and treating cracked  oil
IPC: C10B55/00
Filed: 1973-12-20
Abstract: 1427264 Synthetic coking coal NIPPON MINING CO Ltd 20 Dec 1973 [22 Dec 1972 2 July 1973] 59099/73 Heading C5E Synthetic coking coal is prepared from heavy hydrocarbons by coking them under flow conditions at a temperature higher than the initial cracking temperature and maintaining the pressure (defined) of the volatile components and volatile reaction products of the heavy hydrocarbons in the reaction zone at 700 mmHg (abs.) or less. The coking takes place in a gas flow using a gas which is inert to the reactants and products, e.g. N 2  or steam, or a hydrocarbon gas, e.g. a gas produced in the coking reaction.
Patent GB-1411260-A (GB)
Title: Device for controlling the frequency of a frequency modulated  telegraphic transmitter
IPC: H04L27/12
Filed: 1972-12-22
Abstract: 1411260 Digital transmission: frequency keying ADRET-ELECTRONIQUE 22 Dec 1972 [4 Jan 1972] 59301/72 Headings H3A and H4P A frequency-shift keying generator uses the two-level input control signal at 20, 21 to change by way of a coding matrix 5 the ratio of a frequency divider 2 in the phase-lock loop controlling an oscillator 1. The output of the divider 2 is compared in a phase comparator 3 with a standard frequency from 12. The two frequencies thereby selectively obtained from the oscillator 1 are divided at 4a and used to control a frequency synthesizer 4b whose output is then a carrier frequency of between 2 and 32 MHz, for example, with a keying modulation shift of 100 Hz or a multiple thereof. By using a second control signal and a second control circuit 6-21 (not shown), and modifying the coding matrix 5, the divider may adopt four different ratios to give four-frequency keying. The control circuit employs a light-link 19 supplying the control signal to NAND gates 8, 9, which also receive the standard frequency 12. A bi-stable 6, 7 is thereby set and reset by the control signal only when a positive-going edge occurs in the sample frequency 12, and provides sufficient delay for the counter 2 to respond to the numerical output of the coding matrix 5 before the latter is changed by the bi-stable in response to a near control signal. A potential divider 13, 14, and equal frequency dividers 15, 16, provide ways of modifying the frequency switching time of the oscillator 1.
Patent GB-1309307-A (GB)
Title: Method of making a fluid mixing and feeding pipe
IPC: F16L9/02
Filed: 1970-12-14
Abstract: 1309307 Mixing in conduits FUJI PHOTO FILM CO Ltd 14 Dec 1970 [15 Dec 1969] 59349/70 Heading B1C [Also in Divisions B3 and B5] A metal or plastic fluid mixing and feeding pipe has a helical ridge 5 or ridges 5 and 5' formed on the internal surface of the pipe. In one embodiment described the ridge or ridges are intermittently broken.
Patent GB-1455840-A (GB)
Title: Semiconductor devices
IPC: H01J9/20
Filed: 1973-12-28
Abstract: 1455840 Semi-conductor devices WESTINGHOUSE ELECTRIC CORP 28 Dec 1973 [5 Jan 1973] 59942/73 Heading H1K In a semi-conductor device, a Si layer having an impurity concentration less than 10<SP>17</SP> atoms/ cm.<SP>3</SP> and a minority carrier lifetime greater than 50 nanosecs. is epitaxially deposited on a Si layer doped with P or B to a surface concentration greater than 10<SP>19</SP> atoms/cm.<SP>3</SP>, preferably greater than 10<SP>20</SP> atoms/cm.<SP>3</SP> In Fig 1 MOS capacitors are formed on a substrate 10 of spinel or preferably sapphire. A layer 12 of Si is deposited on substrate 10 by pyrolysis of SiH 4 , and is then doped with P derived from PH 3  to a concentration of 10<SP>20</SP>-10<SP>21</SP> atoms/ cm.<SP>3</SP> A second Si layer 13 is similarly formed, being lightly doped with P 1  or As derived from AsH 3 , and is then conventionally masked and etched to form islands, over which a layer 14 of SiO 2  is deposited. Windows 16 are formed in layer 14, and metal, e.g. evaporated Al, is deposited to form electrodes 18 and contacts 17, the latter being subsequently alloyed to the underlying Si layer 12. In the bipolar NPN mega transistor shown in Fig. 10, the substrate is formed by a monocrystalline Si body 20 having an impurity concentration of P of 10<SP>20</SP> atoms/cm.<SP>3</SP> Si layers 22, doped with As to 8 Î 10<SP>14</SP> atoms/cm.<SP>3</SP>, and 24, doped with B to 10<SP>16</SP> atoms/cm.<SP>3</SP>, are epitaxially deposited on body 20, followed by conventional etching, oxide-coating, emitter diffusion, and metallization steps. In modifications, the transistor is formed on a sapphire substrate (33, Fig. 11, not shown) and the emitter region (27<SP>11</SP>, Fig. 12, not shown) is formed by epitaxial deposition. Fig. 15 (not shown) depicts a complementary MOS transistor arrangement formed on a sapphire substrate, and in Fig. 16 (not shown) a similar construction replaces a P<SP>+</SP>N<SP>-</SP>P<SP>+</SP> transistor with a P<SP>+</SP>P<SP>-</SP>P<SP>+</SP> transistor for operation in a deep-depletion enhancement mode. In Fig. 17, an image-sensing target of a TV camera comprises a sapphire substrate 70, an epitaxial layer 72 of heavily doped Si, and a further, lightly doped, epitaxial layer 73. Donor impurities are dffused through windows in an oxide layer 75 to form P-type regions 77, and so produce a mosaic of diodes which, in operation, face the incident radiation 78.
Patent GB-1275958-A (GB)
Title: Improvements in or relating to lathe tailstocks
Inventor: WILSON ERNEST FRANK
IPC: B23B23/00
Filed: 1969-12-13
Abstract: 1275958 Tailstocks SUSSEX TOOL CO Ltd 11 Dec 1970 [13 Dec 1969] 60907/69 Heading B3T A tailstock for a lathe comprises a body portion 1 with a bore 2 in which is slidably movable a quill 3 which may carry a tool and having a rack which is engaged by a pinion 4 for displacement in the bore 2. The rear end of the quill 3 has a portion 3A with a threaded bore 7 which engages a feed screw 8 which extends through a mounting member 9 secured to the body 1. A rotatable member 11A for operating the feed screw 8 is engaged with the mounting member 9. To effect normal rotation of the feed by way of member 11A and handle 16, the extending end of the feed screw is provided with a serrated flat portion 8A which is engageable by a jaw member 12 actuated by an internal cam ring member 13 which is rotatable coaxially with the feed screw axis by handles 15. The relative rotation of the cam ring 13 in either direction respectively clamps or releases the jaw 12 against the serrated part of the feed screw. The provision of both rack and screw feed for the quill permits rapid displacement and fine adjustment of the tool position and of the quill in relation to the tailstock.
Patent GB-622568-A (GB)
Abstract: 622,568. Animal traps. BLATCHFORD, J. March 28, 1947, No. 8413. [Class 5(i)] A self-setting trap comprises a main cage 1 having a trapping runway 3 leading into it, the floor of the runway consisting of a tilting treadle 12 biased normally to tilt downwardly towards the entrance 4, a closure flap 11 being provided at the entrance and operated, by the weight of the animal on the treadle, through a lever system 13, the flap being re-opened by the tilting of the treadle as the animal moves towards the rear end thereof. The treadle 12 is pivoted on a transverse shaft 12a and is counterweighted at 14 so that its forward end 12b lies normally a short distance above the base of the runway. The lever system comprises a pair of levers 18 pivoted on a shaft 13a and carrying between their rear ends a rod 19 which rests beneath the treadle 12. Links 20 connect the rear ends of levers 18 with short levers 21 integral with the flap 11 and pivoted on a shaft 11a. The weight of an animal on the treadle 12 depresses it, and through the lever system 13, causes the flap 11 to close the entrance 4 behind the animal Fig. 3. As the animal passes over the pivotal axis. 12a the tilting of the treadle tips it into the main cage 1. The front end 12b of the treadle, in rising, returns the flap 11 to its normal position, thus re-setting the trap. The treadle swings back automatically' to its normal position and the animal is prevented from escaping by a freely-pivoted flap 16 which rests against the rearward end 12c of the treadle. In a modification the lever system 13 includes a lost-motion connection.
Patent GB-2129503-A (GB)
Title: A nozzle guide vane for a gas turbine engine
Inventor: PASK GEORGE
IPC: F01D5/28
Filed: 1978-07-21
Abstract: A nozzle guide vane for a gas turbine engine comprises a hollow ceramic vane member 15 which includes an aerofoil portion 29, 30 and ceramic platforms 28, 31. The ceramic vane member 15 is supported by engagement of its interior surface with external supporting surfaces 17, 18, 19 on a metallic load-bearing spine 16 adapted to be supported from fixed structure of the engine. <IMAGE>
Patent GB-2003118-A (GB)
Title: A book-like container
IPC: B65D85/575
Filed: 1978-08-18
Abstract: A book-like container for at least two magnetic tape cassettes. At least one of the two covers of this container has several individual compartments divided by partitions. Each compartment accommodates an individual cassette container. At least one end compartment has a recess to expose the contents panel of a cassette container in that compartment. <IMAGE>
Patent GB-2008622-A (GB)
Title: Improvements in or Relating to Annealing Apparatuses for Moving Wires
IPC: C21D9/56
Filed: 1978-10-05
Abstract: An apparatus 1 for continuously annealing a moving wire comprises an annealing drum 3 rotatably mounted in thermally resistant rigid housing 2. Openings 4 and 5 are formed in the housing to allow a wire to be annealed to enter and leave the housing. The annealing drum 3 or the housing 2 or both is provided with a heating device. in use, the wire to be annealed passes through one of the openings 4 and is wrapped at least once around the drum 3, from which it is drawn of through the other opening 5, engaging and leaving the drum substantially tangentially thereof. <IMAGE>
Patent GB-2037049-A (GB)
Title: Guitars
IPC: G10D1/08
Filed: 1978-11-06
Abstract: Guitar is formed from a single integral cast unit which includes head 1, neck 2, electric pick-up support 3, bridge mounting 4, and string anchor 5. By providing an integral unit embodying all the essential components of the instrument, a variety of body shapes can be rapidly interchanged while retaining the basic uniform playing section. <IMAGE>