baber/WOPTO huggingface dataset:
Patent GB-1479154-A (GB)
Title: Germanium doped gaas devices
IPC: C30B29/40
Filed: 1974-12-03
Abstract: 1479154 Lasers; ohmically contacting semiconductor devices WESTERN ELECTRIC CO Inc 3 Dec 1974 [3 Dec 1973] 52162/74 Headings H1C and H1K [Also in Division C4] A semiconductor device is made by contacting at a temperature of 700-850 C. a body consisting of one or more A 111 B v  compounds with a solution comprising gallium, gallium arsenide and 20-50 atomic per cent germanium, reducing the temperature of the liquid-solid interface by at least 0À5 C. to epitaxially deposit a P type layer with a carrier concentration of at least 3À5 x 10<SP>19</SP>/cc and applying a metal layer to the P type layer to form an ohmic contact therewith. Deposition preferably starts at 800 C. and is continued to provide a layer 0À5-25Á thick on which a composite electrode layer of chromium or titanium overlain with gold is conventionally deposited. A method of constructiong a heterojunction laser on a (100) oriented N + GaAs substrate is described using four different solutions to provide intermediate layers of GaAlAs and finally the P type contact layer.
Patent GB-1207540-A (GB)
Title: Apparatus for responding to a magnetic field or to an electric current producing a magnetic field
IPC: H04B10/00
Filed: 1967-11-16
Abstract: 1,207,540. Photo-electric current measurement. COMPAGNIE DES COMPTEURS Nov. 16, 1967 [Nov. 25, 1966; Feb.7, 1967], No.52276/67. Headings G1A and G1U. In a system for measuring the current in a high voltage transmission line, where the current, or a current proportional to it, rotates the plane of polarization of a light beam by the Faraday effect, two polarized beams are rotated by the current in opposite directions and received via analysers upon respective photo-cells connected in a differential arrangement. The present system avoids interference from outside magnetic fields and variations in the light source or sources producing the beams. In a null-arrangement Fig. 1 two beams polarized by polarizers 11 and 21 are rotated in opposite directions by first optical elements 12, 22 whose windings are energized by a current proportional to the one being measured. The beams are rotated back by optical elements 13, 23 whose windings are traversed by current proportional to the difference in the two photoelectric voltages generated by photo-cells 15 and 25 on which the two beams finally arrive after passing through analysers 14 and 24. The current through the windings of elements 13 and 27 is proportional to the current being measured and is indicated at 9. In another arrangement Fig. 3 (not shown) the light beams of equal intensity are generated by diodes and intensity modulated at a frequency proportional to the level of current being measured. This frequency modulation appearing in the differential detector circuit is detected as an additional measurement of the current. In another arrangement Fig. 2 (not shown) optical elements 12 and 22 have no windings but are placed either side of the conductor through which the current being measured flows so that the elements are influenced by the magnetic field of the conductor.
Patent GB-1484177-A (GB)
Title: Heat-recoverable cap
IPC: H01L23/02
Filed: 1974-12-03
Abstract: 1484177 Mounting semi-conductor devices RAYCHEM CORP 3 Dec 1974 [3 Dec 1973 30 April 1974] 52318/74 Heading H1K An electrical component 6, e.g. a semi-conductor chip, is sealed on a substrate 2 having a wall or walls 12 surrounding the component, by inserting into the area defined by the wall(s) 12 and over the component 6 a heat-recoverable sealing member 14 which initially is of such a size and configuration as to fit loosely within the wall(s) 12, but which is subsequently warmed or allowed to warm so that it recovers to a second, stable state having an increased size and configuration which forms a seal with the walls. The heat-recoverable sealing member 14 may be made from a so-called "memory alloy", e.g. a nickel titanium alloy containing 47À1% Ni, 49À4% Ti and 3À5% Fe, a beta-brass alloy or a 304 stainless steel. A planar disc of such material is immersed in liquid nitrogen, at - 196 C., and deformed into a concave configuration of dimensions just smaller than the correspondingly shaped wall(s) 12 of the substrate and is placed over the component to rest on a lip formed in the wall(s). Upon warming, e.g. to a transition temperature in the range - 196 to +135 C., the sealing member will attempt to recover its original configuration and in so doing exert a force on the substrate walls sufficient to seal the component. Alternatively the sealing member 14 may be made of a heat-recoverable plastics, e.g. a polyarylene, which may recover to an original configuration upon heating up to or below 300 F. One of the members forming the seal, i.e. the sealing member 14, the substrate wall(s) 12 or an interposed ring 18, Fig. 3, is preferably formed of softer material than the other members to enhance the sealing. The ring 18 which may be bonded to the substrate, is preferably of V configuration. The sealing member may have a projection 16 to assist in locating it in the substrate or in removing it therefrom to enable access to be had to the semi-conductor component.
Patent GB-1381178-A (GB)
Title: 1-cinnamylideneamino-3-benzylidene-amino-guanidines their preparation and compositions containing them
IPC: C07C281/16
Filed: 1972-11-13
Abstract: 1381178 1 -(Cinnamylideneamino)-3-(benzylideneamino)-guanidines MERCK & CO Inc 13 Nov 1972 [19 Nov 1971] 52373/72 Heading C2C [Also in Division A5] Novel compounds (I) and their acid addition salts in which R 1  and R 11  are hydrogen, halogen, nitro, trifluoromethyl, trifluoromethoxy, trifluoromethylthio, acetyl carbamoyl, cyano, methylsulphonyl, methylsulphonyl carbomethoxy or dimethylaminosulphonyl, R 2  and R 12  are hydrogen, halogen or nitro, R 3  and R 13  are hydrogen or halogen with the proviso that at least one of the ring substituents is other than hydrogen, R 4  and R 5  are hydrogen, halogen or C 1-5  alkyl, R 6  to R 9  are hydrogen or C 1-5  alkyl and R 10  is hydrogen, C 1-5  alkyl or C 1-5  alkanoyl are prepared by reacting an appropriately substituted 3-amino-1-cinnamylidene amino guanidine with an appropriately substituted benzaldehyde or alkylphenyl ketone or by the corresponding reaction of a 1-amino-3-benzylideneamino-guanidine with a cinnamaldehyde or alkylstyryl ketone. Compounds (I) in which R 7  and/or R 8  are C 1-5  alkyl and R 10  is hydrogen are prepared by reaction of a cyanamide (4) with the appropriate benzaldehyde hydrazone or alkylhydrazone (7) Compounds (I) in which R 10  is C 1-5  alkyl are prepared by reaction of a compound (11) with an alkyl-amine R 10 :NH 2  at an elevated temperature and under a slight superatmospheric pressure. Compounds (1) in which R 10  is C 1-5  alkanoyl are prepared by reacting the corresponding compound (1) in which R 10  is hydrogen with a C 1-5  alkanoic acid anhydride. Compound (4) is prepared by reacting a cinnamaldehyde or alkyl-styryl ketone with a hydrazine or alkylhydrazine to produce a hydrazone or alkylhydrazone (3) which is reacted with a slight excess of Br-CN in the presence of a weak base. Compound (7) is prepared by reaction of benzaldehyde or methylalkylketone with a hydrazine or alkylhydrazine. Compound (11) is prepared by treatment of a cinnamaldehyde or alkylstyryl ketone with thiocarbohydrazide at an elevated temperature in an alkanol to form a thiocarbohydrazone (9) which is reacted with a benzaldehyde or alkyl phenyl ketone to produce compound (10) which is reacted with methyl iodide in the presence of an alkali metal methoxide. Compounds (I) are coccidiostats and form with a suitable carrier an anti-coccidial composition which may be in the form of an animal feed drinking-water, a water-soluble powder or an animal feed supplement. The composition may contain a second coccidiostat selected from amprolium, nicarbazin, ethopobate or 3,5-dinitro-o-toluamide, vitamins, antibiotics, growth promotants or anti-viral agents.
Patent GB-1335084-A (GB)
Title: Machines for cutting keys
IPC: B21D53/42
Filed: 1971-11-11
Abstract: 1335084 Key cutting machines COLE NATIONAL CORP 11 Nov 1971 [18 Jan 1971] 52470/71 Heading B3L  A machine 11 for cutting a key comprises a frame 12, a cutter means 14 a carriage 19 for movement on the frame, a vice means 21 for holding a key blank, the cutter means and the vice means being mounted on the frame and the carriage respectively, or vice versa, for movement relative to one another longitudinally of the vice means, cut spacing means 72 co-operable with the carriage and frame to establish, in use of the machine, the spacing of successive cuts along the length of a key blank in the vice means, and indexing means 94 for moving the carriage into co-operation with respective parts of the cut spacing means. The machine is hand operated by lever 86 and automatically indexes along the length of a key held in a vice 22 by the indexing means 94 which includes cut spacing means 72, pawl 90, ratchet .92 and lever handle 86. All functions are tied to the actuation of handle 86, viz. depth setting means 44 and cut spacing means 72. The fact that drum 49 moves in a direction perpendicular to the axial length of the key, permits use of a stepped plate 73. This plate establishes the axial spacing of cuts along the key, and the depth setting means is enabled in sequence to establish the proper lateral depth of cut for each of these axial positions. Also the plate enables resetting by only a single direction of movement by the operator of the vice means against the urging of carriage spring 79. Parallelogram linkage 39, 40 establishes that the vice means always maintains a constant planar attitude of the blank key relative to the key cutter 14. The linkage also permits the vice means to have a second vice 23 thus permitting the machine to act both as a key duplicating machine as well as a code setting machine. Cutter 14 is a punch that co-operates with an anvil 15.
Patent GB-1057800-A (GB)
Title: Improvements relating to expanding mandrels
IPC: B23B31/30
Filed: 1965-12-10
Abstract: 1,057,800. Grinding; mandrels. A. E. SYKES. Dec. 10, 1965, No. 52478/65. Headings B3B and B3D.  An expanding mandrel for holding a workpiece 29, such as a gear for face grinding, comprises a relatively non-distortable substantially cylindrical reactor block 2<SP>1</SP> having a central bore 10 therein and a relatively distortable sleeve 4 surrounding the block, cylindrical bores 12 disposed radially in the reactor block and communicating with the central bore, the bores 12 being in at least three axial rows and having located therein thrust units 13 each of which is capable of being urged by fluid pressure into contact with the inner wall of the sleeve, whereby on fluid pressure being applied to the thrust units, the sleeve becomes distorted to increase its effective outside diameter. The sleeve 4 is formed with a flange 5 secured by bolts to a mandrel holder 7 which is secured by bolts to a hole 9 in a machine table 2. The central bore 10 in the block 2 is connected by passages 11 to the cylindrical bores 12 containing the thrust units which consist of metal discs faced with resilient material, such as neoprene, and engage the inner surface of the sleeve 4 which may be of steel or suitable metal and has a thickness permitting distortion of the sleeve when the units 13 are urged outwardly by fluid pressure in the centre bore 10. The units, as described, are arranged in four axial rows in the reactor block 2 with four units in each row and. when the units are urged outwardly, the sleeve is distorted to form four lobes 31, Fig. 2 (not shown), which engage the workpiece 29 supported on a register bush 29. The reactor block is formed with four flats 3 which permit radially inward movement of the parts of the sleeve between the lobes. The fluid pressure in the bore 10 is increased to effect gripping of the workpiece by movement of a primary piston 14 by a bank of spring washers 15 when an operating rod 18 having. a head 17 abutted by the washers is moved by a lever 21 under the control of a follower 25 engaging a cam 26. The initial pressure in the bore may be adjusted by a manually operated secondary piston 28. In another embodiment, a plurality of mandrels are mounted on a casing and are supplied with fluid pressure from a common source, such as a hand pump. The fluid may be air, oil or some other liquid.
Patent GB-1408969-A (GB)
Title: Detergent compositions
IPC: C11D1/37
Filed: 1973-11-13
Abstract: 1408969 Granular detergent composition PROCTER & GAMBLE CO 13 Nov 1973 [13 Nov 1973] 52587/73 Heading C5D A granular low-phosphate spray-dried detergent composition comprises (A) 10 to 30% wt. of a surfactant mixture consisting essentially of (1) sodium or potassium C 9 -C 20  alkyl benzene sulphonate or mixtures thereof, (ii) an alkyl ether sulphate mixture of Formula I: wherein R is C 12  to C 12  alkyl, n is an integer and M is Na or K, the average number of carbon atoms in R being 12 to 16 and the average degree of ethoxylation being 1 to 4; said mixture comprising the following percentages of compounds of Formula I: (a) 0À01 to 10% of C 12 -C 18  compounds, (b) 50 to 75% of C 14 -C 15  compounds, (c) 20 to 45% C 15 -C 17  compounds, (d) 0À05 to 10% of C 18 -C 19  compounds, the degree of ethoxylation being as follows: zero (3 to 30%), 1 to 4 (45 to 90%), 5 to 8 (10 to 25%), above 8 (0À1 to 15%); the wt. ratio of alkyl benzene sulphonate to alkyl ether sulphate being 0À1 : 1 to 6 : 1; (B) 10 to 90% wt. of an organic and/or inorganic salt which is an alkali metal silicate, an alkali metal carbonate or bicarbonate, a water-soluble alkali metal or alkaline earth metal carboxylate, sulphate or chloride, or a mixture thereof; (C) 1 to 7% wt. of water. The composition may be low-phosphate, i.e. containing 1 to 35% wt. of an alkali metal ortho- or poly-phosphate, or non- phosphate. Non-phosphate compositions comprise by wt. of component (B), 40 to 65% of alkali metal carbonate, 35 to 60% of alkali metal silicate and 1 to 10% of sodium acetate, potassium acetate, alkali metal sulphosuccinate or magnesium sulphate; alternatively, (B) may be 50 to 75% of an alkali metal citrate, 10 to 30% of an alkali metal bicarbonate and 5 to 12% of trisodium sulphosuccinate. Specification 1,408,970 is referred to.
Patent GB-1309200-A (GB)
Title: Scale having a restrained movable balancing member
IPC: G01G7/02
Filed: 1971-11-12
Abstract: 1309200 Weighing apparatus BROOKLINE INSTRUMENT CO 12 Nov 1971 [13 Nov 1970] 52745/71 Headings G1N, G1W A weighing scale comprises at least one hydraulic load cell 14 for receiving the weight W of a body to be weighed, connected to load cells 24 which apply a force proportional to the weight W on a balance beam 18, the displacement of the beam from an initial position being proportionately resisted, e.g. by springs 39 or an air jet (61) Fig. 8 (not shown), and being measured and displayed by read-out means which gives an indication representative of the weight W. In Figs.1, 2, the beam 18 pivots about a knife-edge fulcrum 22 and carries counter-poise weights 38 at one end. The force applied by load cells 24 via a knife-edge 29 is resisted by one or more springs 39, the number and moment arm of which may be changed to suit the load range required. Displacement of the beam from its initial position is sensed by a linear variable differential transformer 47 Fig. 5 (not shown) the A. C. output of which is demodulated in a control box 52 to provide a D.C. signal to a digital display voltmeter 53 and/or a meter 54 which are calibrated to read directly in weight units. The signal may also control a printer. A potentiometer 57 allows zero adjustment of the meters. Instead of the demodulator, a linear phase detector may be used. The circuit may include a thermister to correct the transformer output signal for temperature variations. A further alternative circuit uses a D.C. ammeter as a null instrument, with a first potentiometer for initial zeroing and a second, calibrated potentiometer to bring the reading back to zero under load. In Fig. 8 (not shown), displacement of the beam is resisted by an air jet (61), a control shutter being moved in response to signals from the transformer 47 to increase the jet velocity as the displacement increases. In Fig. 9 the fulcrum 22 is above the beam 18 and the load cells 19 below it. The beam tare weight is taken by springs 39 and 77, the springs 39 also serving to proportionately resist displacement of the beam under load. Stops 75 limit displacement of the beam.
Patent GB-1528216-A (GB)
Title: Inductive communication systems
IPC: H04B5/00
Filed: 1976-01-15
Abstract: 1528216 Inductive communication HALSTEAD COMMUNICATIONS Inc 15 Jan 1976 [29 Dec 1975] 52976/75 Heading H4L In an inductive communication system for use in drive-in motion picture theatres, a modulated carrier wave being fed along a coaxial cable with a grounded sheath, an inductive signalling conductor is coupled to receive the carrier wave from the central conductor of the coax., a termination at the end of the signalling conductor connecting it to ground. The signalling conductor, which may be incorporated into a common structure with the coax., comprises a fixed or removable conductor parallel to the coax. central conductor, an extra conductor enveloping, and insulated from the sheath, or a helical strip, spaced from the sheath by insulation, and passing around it, Figs. 5-9, 11-12 (not shown). The signalling conductor may be coupled to the coax. central conductor, at an end, or intermediate point, via a resistive adjustable attenuator, and adjustable coupling capacitor, Fig. 2 (not shown), a similar arrangement being provided to couple the signalling conductor end(s) to the coax. sheath and adjusted to avoid standing waves. The cable structure is used to provide communication in the medium wave broadcast band via the radios of vehicles parked in a drive-in cinema, to communicate the sound channel, Figs. 14-16 (not shown). To restrict the range over which communication is possible, a transmitter of white, or other noise, operating at the same frequency as for the information communication is connected to a cable structure positioned adjacent the cinema boundary.
Patent GB-1490033-A (GB)
Title: Solenoid valve
IPC: F16K31/08
Filed: 1975-12-30
Abstract: 1490033 Valves SOC ANON DBA 30 Dec 1975 [6 Jan 1975] 53169/75 Heading F2V In a solenoid valve the flow path between a pair of orifices 14, 22, Fig. 1, is controlled by a valve member, e.g. a steel ball 30, which is normally attracted against one end of a movable magnetized rod 28 which, when coil 34 is not energized, is attracted towards fixed softiron core 36. However, when the coil is energized the rod 28 is repelled downwardly and thereby forces the ball 30 against its seating 26. Support member 12 for the rod and ball is made of non-magnetic material. The ball 30 may be omitted and the end of rod 28 suitably shaped to function as the valve member. In an alternative embodiment, Fig. 2 (not shown), for installation in a fuel cut-off device of a carburetter, the ducts 14, 17 are both arranged to be supplied with fuel and the valve seating 26 is formed on a separate member (40) screwed into the member 12.
Patent GB-1201504-A (GB)
Title: Improvements in optical scanning devices in particular for rapid infra-red spectrography
Inventor: CLERC MICHEL
IPC: G01J3/06
Filed: 1967-11-23
Abstract: 1,201,504. Spectrometers. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov.23, 1967 [Nov.30, 1966], No.53418/67. Heading G2J. [Also in Division G1] In a device for scanning a spectrum photoelectrically the dispersed beam is reflected by a rotating mirror on to a series of fixed mirrors successively whence it is reflected through a number of slits to a small number of detectors. In a first embodiment, Fig.1 the dispersed beam R 1  from a prism 1 is reduced in size by a Cassegrain telescope 2, 3 and falls on a twosided rotating mirror m. The beam is reflected by mirror m in turn twice per cycle on to parabolic mirrors M 1 , M 2 , M 3  and M 4  whence it is reflected through slits G 1 , G 2  and via elliptical mirrors N 1 , N 2  to doped germanium detectors, D 1  D 2 . The output of detectors D 1 , D 2  may be displayed on a common oscillograph. In a modification, the mirrors may be elliptical with foci at mirror m and slits G 1  G 2 . In this case the telescope focuses the dispersed beam on the centre of the mirror m. In a second embodiment, Fig.2, the mirror m reflects the dispersed beam R 2  on to parabolic mirrors M 1 -M 8  and thence through slits G 1 -G 8  and via elliptical mirrors N 1  and N 2  to detectors D 1 D 2 . The invention may be used for the analysis of transitory chemical species in rapid reactions by infrared spectrography.
Patent GB-1292898-A (GB)
Title: New polypeptides and process for their manufacture
IPC: C07K1/113
Filed: 1970-11-11
Abstract: 1292898 ACTH-active peptides TAKEDA YAKUHIN KOGYO KK 11 Nov 1970 [11 Nov 1969] 53573/70 Heading C2C Compounds (I): X - Tyr - Ser - Met - Glu - His - Phe - Arg - Tys- Gly - Lys - Pro - Val - Gly - Lys - Lys - Arg - Arg- P (I), (wherein X is Sar or Albu (α-amino-isobutyryl) and P is ProOH, Pro-ValOH, Pro-Val- LysOH, Pro-Val-Lys-ValOH, Pro-Val-Lys-Val- TyrOH, Pro - Val - Lys - Val - Tyr - ProOH) and their amides, acid addition salts and heavy metal complexes are prepared by reacting X-Tyr-SerOH in the form of an activated derivative containing blocked amino groups with a peptide comprising the remaining amino acids to form (I) and where #-amino groups in lysine, the γ-carboxyl groups in glutamic acid and the terminal carboxyl groups and the guanidino groups of arginine are protected, followed by removing protecting groups, or similarly reacting X-Tyr-Ser-MetOH or X-Tyr- Ser - Met - Glu - His - Phe - Arg - Try - GlyOH with appropriate peptides to give (I). The following starting materials and intermediates are formed: Z-Sar-Tyr-OMe and -NHNH 2 , Z-Sar-Tyr-Ser-OMe and -NHNH 2  and Z - Sar - Tyr - Ser - Met - Glu - His - Phe- Arg(N0 2 ) - Try - Gly - Lys(Z) - Pro - Val - Gly- Lys(Z) - Lys(Z) - Arg(N0 2 ) - Arg(N0 2 ) - Pro- Val - Lys(Z) - Val - Tyr - Pro - OH; Z - Sar - Tyr- Ser - Met - Glu - His - Phe - Arg(N0 2 ) - Try - Gly- Lys(Z) - Pro - Val - Gly - Lys(Z) - Lys(Z) - Arg (N0 2 ) - Pro - Val - Lys(Z) - Val - TyrNH 2 ; Z - Albu - Tyr - NHNH 2  - Z - Albu - Tyr - Ser OMe and -NHNH 2  and Z - Albu - Tyr - Ser- Met - Glu - His - Phe - Arg(N0 2 ) - Try - Gly- Lys(Z) - Pro - Val - Gly - Lys(Z) - Lys(Z) - Arg (N0 2 ) - Arg(N0 2 ) - Pro - Val - Lys(Z) - Val - Tyr- ProOH; BOC - Sar - Tyr - Ser - Met - NHNH 2  and BOC - Sar - Tyr - Ser - Met - Glu(OtBu)- His - Phe - Arg - Try - GlyOH: BOC - Albu- Tyr - NHNH 2 , BOC - Albu - Tyr - Ser - OMe and -NHNH 2 . Pharmaceutical compositions having ACTH activity comprise the compounds (I) and a carrier in forms suitable for oral, parenteral, rectal and topical administration.