baber/WOPTO huggingface dataset:
Patent GB-1477905-A (GB)
Title: Red light-emitting gallium phosphide device
IPC: H01L21/208
Filed: 1974-10-21
Abstract: 1477905 Semiconductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 21 Oct 1974 [31 Jan 1974 (2)] 45434/74 Heading H1K [Also in Division C4] A red light emitting GaP PN junction device comprises an N type substrate with a donor doping of 1-3 x 10<SP>17</SP> atoms/cc, carrying a grown N type layer with a donor doping at its upper surface of 2-5�5 x 10<SP>17</SP>/cc, and a grown overlayer of P type with an acceptor doping in the region within 20 � of the PN junction of 1-3 x 10<SP>17</SP>/cc. The donor concentration at said upper surface of the N layer is between 1�5 and 4 times the acceptor concentration in said region of the P layer. Such doping levels facilitate ohmic contact to opposite sides of the junction and permit high external quantum efficiency particularly if the P and N type layers are formed by liquid phase epitaxy from solutions cooled at less than 3� C./minute, and preferably at much lower rates when regions within 10 � of the junction are being formed. The substrate is typically Te doped and the layers formed from solutions of GaP in Ga containing Te, and Zn and Ga 2 O 3  respectively, each layer being lapped to 20 � thickness after deposition and temporarily provided with a gold Schottky electrode to enable its doping to be determined. Permanent contacts to substrate and P type layer are of In and In-Zn alloy respectively sintered at 500� C. In alternative procedures Se or S is substituted for Te and the N type layer formed by vapour-phase epitaxy. Coating with epoxy resin improves external quantum efficiency.
Patent GB-1245948-A (GB)
Title: N-ACYL-alpha-AMINO ACID AMIDES OR PEPTIDES AND THIER PRODUCTION
Inventor: MARQUARDING DIETER
IPC: C07K1/02
Filed: 1968-09-25
Abstract: 1,245,948. Silyl-ferrocene derivatives. FARBENFABRIKEN BAYER A.G. 25 Sept., 1968 [25 Sept., 1967; 17 Aug., 1968], No. 45514/68. Heading C3S. [Also in Division C2] Isobutyraldehyde - 2 - trimethylsilyl - ferrocenyl-methylimine is prepared by dissolving N- (2 - trimethylsilyl - ferrocenylmethyl) - N,N- dimethyl - ammonium iodide in a mixture of glycoldimethyl ether and water and then adding sodium azide, extracting trimethylsilyl-ferrocenyl methyl azide therefrom and dissolving the azide in glycolamino methyl ester to which is added stannous chloride, extracting 2-trimethylsilyl - ferrocenyl - methylamine therefrom and dissolving it in methylene chloride to which is added isobutyraldehyde and extracting the isobutyraldehyde - 2 - trimethylsilyl ferrocenyl therefrom. The two diastereomers of N-benzoyl-N-2 trimethylsilyl - ferrocenyl methyl valine N<SP>1</SP>- tert butylamide of the formula are prepared by reacting the above isobutyraldehyde derivative with benzoic acid dissolved in methylene chloride and tert-butylisonitrile.
Patent GB-1287783-A (GB)
Title: Thrombin assay system
IPC: G01N33/49
Filed: 1969-09-16
Abstract: 1287783 Determination of thrombin activity BAXTER LABORATORIES Inc 16 Sept 1969 [2 Oct 1968] 45581/69 Heading B1X [Also in Division A5] A gel plate for the quantitative determination of thrombin activity in blood plasma and plasma fractions comprises a plate carrying an agarose gel medium containing unclotted fibrinogen. In preparing the plate, from 1 % to 10% gelling agent may be dissolved in heated buffer volution, for example one comprising 0.15M sodium chloride, 0.04M imidazole, 0.02M EDTA and the resulting solution mixed with 10mg% to 2mg% unclotted fibrinogen. When the gel is set, holes may be punched in it for the samples to be tested and the plate may be covered with a protective plastics membrance and packed in plastics film or metal foil optionally together with control samples, buffer materials and capillary tubes for making the assay. The thrombin activity of a known plasma sample is determined by introducing the sample and a series of control samples of known concentration into individual wells in a gel medium containing unclotted fibrinogen, incubating for a predetermined period of time to produce in the gel opaque radial diffusion zones of reaction product, and measuring the diameters of the diffusion zones. The gel may be agarose (preferred), gelatin, pectin, silica gel, starch. agar, algin, carageenin, cross-linked polyacrylamide.
Patent GB-1446952-A (GB)
Title: Gaseous fuel burners
IPC: F23D14/02
Filed: 1973-09-28
Abstract: 1446952 Atmospheric gas burners TRI-MEN MFG Inc 28 Sept 1973 [28 Sept 1972] 45620/73 Heading F4T A gas burner has a cup-shaped head member 8 including an end wall 2 and a cylindrical wall 3 enclosing an air cavity with an outlet mouth, means for introducing air under pressure tangentially into said cavity near wall 2, means for introducing gas fuel under pressure into the head member through ports 13 radial to the burner axis and located at the throat of a Venturi which has its upstream end spaced from end wall 2 and its downstream end supported by a cylindrical sleeve 16 extending downstream from a flange 17 attached to and partly closing the air cavity outlet, a perforated plate 41 across the upstream end of the Venturi to allow air entry thereto from the air cavity, and a multi-ported burner plate 30 in the downstream portion of sleeve 16 and spaced from the diverging portion 26 of the Venturi. The primary air inlet apertures in plate 41 are adjusted in effective area by rotating an apertured shutter 44 by a crank. The flange 17 is provided with secondary air outlets into a combustion chamber H. Ignition is effected by a continuous arc struck between an electrode 60 and a pocket (38), Fig. 7 (not shown), formed in the downstream face of plate 30. The burner may have a 2 inch diameter plate 30 and be used as part of a compact heating system, a motor (M), Fig. 8 (not shown), driving a blower supplying air to the head member B and also driving a fan (F) forcing air over the combustion chamber H for heat-exchange therewith. About ¥ and  of the air supplied to head member B passes into the Venturi and through the secondary outlets respectively, the secondary air acting also as a coolant.
Patent GB-1117000-A (GB)
Title: Improvements in or relating to dental syringes
IPC: A61C1/05
Filed: 1966-10-12
Abstract: 1,117,000. Dental syringes. DENTISTS' SUPPLY CO. OF NEW YORK. 12 Oct., 1966 [20 Oct., 1965], No. 45700/66. Heading A5R. A dental syringe, able to supply from a nozzle 20 air or water or a mixture thereof. comprises an elongate body or handle 10 in which is formed passages for the air of water. there being a valve 54, 58 in each passage and there being a valve-actuating member rotatable about an axis extending longitudinally of the handle into positions in which it may selectively operate the valves to discharge either the air or water individually or an aerated water mist. As shown, a knob 100 secured to the rotatable valve-actuating member 96, 104, 112 can be turned to position a transverse member 116 selectively over rods 62, 64 attached by members 60 to the valve stems 46, 48 of water and air valves, so that, when the knob 100 is depressed, the transverse member 116 depresses certain of the rods 62 64 to open either or both of these valves. The water and air is supplied to the handle through conduits 166, 168, and transverse conduits (170, 172) (Figure 14, not shown) into the valve chambers 44 and metering outlets 42, the water and air then passing upon actuation, of the valves into conduits 30, 32, 40 and into co-axial bores (140, 142) in the nozzle 20 (see Figure 3, not shown). A rod 62 and a shorter rod 64 is adjustably mounted on the member 60 associated with each valve such that either water or air is provided when the member 116 is rotated and then depressed over a rod 62 and so that the water and air mixture provided when the member is depressed over both rods 64 (see Figure 10, not shown) is, by reason of the shorter length of the rods, about equal in force to the water or air flow alone. The rotatable valve-actuating member may be controlled by a detent fitting into grooves 120 and the knob, when it is depressed, may be guided by a member 134. It is stated that an electric heater for the water and air may be provided either in the handle or in the flexible conduits (28) to the handle.
Patent GB-1178095-A (GB)
Title: A Smoker's Safety Receptacle for Cigarette Ends, Ash, Matches and the like
Inventor: JOHN JOSEPH MALCOLM
IPC: A24F19/00
Filed: 1968-09-26
Abstract: 1,178,095. Cases for cigarette ends &c. J. M. JOHN. 26 Sept., 1968, No. 45722/68. Heading B8P. [Also in Division A2] A pocket-sized smokers' receptacle for burning cigarette ends, ash, lighted matches &c., comprises an elongated substantially cylindrical container 1 having a hinge 4 4 integral with both its open end and with a lid 3, the outer surface of the lid 3 being provided with a recess 11 into which an insert 12 carrying an initial or other identifying mark may be inserted. The lid 3 may be provided with a tab 5, or may be sized to project over the edge of the container 1, to facilitate raising of the lid 3 which is a snap fit. The container 1 may be formed from plastics material, light metals (such as aluminium), alloys, precious metals or fibreglass, and the hinge 4 may be reinforced with a metallic overlay. Replacement of an insert 12 by another is facilitated by the provision of an aperture 13 in the lid 3 for the insertion of a pin to remove the insert 12.
Patent GB-939904-A (GB)
Title: Non-diffusing magenta colour couplers
IPC: C07D231/26
Filed: 1961-12-21
Abstract: The invention comprises compounds of formula:-<FORM:0939904/IV(a)/1> in which R1 represents a 9,10-dihydroxyheptadecanyl radical, R2 represents the necessary atoms to complete a benzene ring or benzthiazole ring system, which may be substituted, and X is an oxygen atom or a nitrogen atom linked to a ring carbon atom of the benzene ring of R2.  The compounds are prepared by reacting 9,10-dihydroxy stearyl acetic ethyl ester with a substituted or unsubstituted phenyl hydrazine to produce the pyrazolone derivatives or by using a 2-nitro phenyl hydrazine, followed by reduction and cyclisation to produce the pyrazolinobenzimidazole derivatives.  The compounds are used as magenta colour couplers.  Specification 918,128 is referred to.
Patent GB-1089399-A (GB)
Title: Master-slave manipulator with articulated arms
Inventor: VERTUT JEAN
IPC: B25J19/00
Filed: 1964-11-11
Abstract: 1,089,399. Manipulators. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 11, 1964 [Nov. 15, 1963; Oct. 29, 1964], No. 45966/64. Heading B4Q. A master-slave manipulator, Fig. 3, comprises a member 2 traversing the wall 1 of a hot cell and rotatable about a horizontal axis by means of a roller tube 3, the ends of the member 2 being pivotally connected, respectively, through yokes 24, 25 to a master upper arm 4 and slave upper arm 5. The arms 4, 5 are connected through elbows 6, 8, respectively, to a master forearm 7 and slave forearm 9. The forearms 7, 9 may be rotated about their longitudinal axes and carry wrist joints 10, 11 pivotally coupled to a handle 12 and grab 13, respectively. The several motions of the master assembly are transmitted to the slave assembly by systems of cables, belts or chains and pulleys (Fig. 4 not shown) so arranged that the forearm 9 moves about its elbow 8 in the same direction as the forearm 7 moves about its elbow 6 whereas the upper arms 4, 5 move in opposite directions to one another about their respective connections to the member 2. To enable the grab 13 to be used close to the wall and viewed through a window the operator must also be close to the wall and to facilitate operation of the master assembly in such circumstances it may be given an auxiliary movement to the chain-line position 4<SP>1</SP>, 7<SP>1</SP> independently of any movement of the slave assembly. To this end the upper arm 4 has an auxiliary yoke 27 pivoted at 26 to the yoke 24. Normally the yokes 24, 27 are locked together, but to produce the auxiliary movement they are unlocked and the master assembly is rotated about the pivot 26. The master and slave assemblies are counterbalanced by weights 49; 57, respectively, operating in conjunction with cable and pulley systems as described with reference to Fig. 5 (not shown). In a modification (Fig. 6, not shown) the auxiliary movement is performed by a motor actuator, and causes the slave assembly to be moved about its point of connection with the wall traversing member, the master assembly remaining stationary; also, in normal operation, the fore arms of the master and slave assemblies may move through angles which are riot equal to but are proportional to one another and the upper arms may similarly move proportionately. In another embodiment (Fig. 2, not shown) the master and slave assemblies each comprise three pivoted arms.
Patent GB-1359184-A (GB)
Title: Radiators for internal combustion engines
IPC: F28F9/02
Filed: 1971-10-04
Abstract: 1359184 Radiators MARSTON RADIATORS Ltd 7 Sept 1972 [4 Oct 1971] 46050/71 Heading F4S A cross-flow radiator 1 for use with a V- formation I.C. engine comprises a core of horizontal coolant tubes 2 and fins 3 extending between side headers which consist of first and second inlet tanks 4 and 7 and an outlet tank 9. The first inlet tank 4 is connected to one bank of the V-engine via an inlet 6 whereas the second inlet tank 7 is connected to the other bank of the V-engine via an inlet 8. In use engine coolant flows into both inlet tanks 4 and 7, the coolant from tank 4 flowing through the upper one-third of the core tubes and being partially cooled before reaching the tank 7 where it mixes with coolant entering the tank 7 through inlet 8. The coolant mixture then passes through the lower two-thirds of the core tubes and into the outlet tank 9. The volume of the first inlet tank 4 is half that of the outlet tank 9. In an alternative embodiment (not shown) the first inlet tank and the outlet tank are disposed one behind the other when considered with respect to the direction of air flow through the core. (For Figures see next page.)
Patent GB-1089477-A (GB)
Title: 2,4-diaminobenzoic acid derivatives
Filed: 1965-11-01
Abstract: The invention comprises compounds of the formula <FORM:1089477/C2/1> wherein R represents a C1- 4 alkyl group, Y represents a hydrogen atom, a C1- 4 alkyl group, an alkali metal atom or an equivalent of an alkaline-earth metal, and non-toxic acid addition salts thereof, and the preparation of the free acids by hydrogenating a 2-(C1- 4 alkyl)-amino-4-nitrobenzoic acid in the presence of a noble metal catalyst.  The free acids may be converted into the desired salts or esters by known methods.ALSO:Anticoccidial compositions in forms suitable for oral administration, comprise 2-(C1-4 alkyl) amino-4-aminobenzoic acids or their alkali metal, alkaline-earth metal or acid addition salts or C1-4 alkyl esters, preferably with a further anticoccidial agent (e.g. amprolium, nicarbazin, glycarbylamide, 3,5-dinitrobenzamide or 2-methyl-3,5-dinitrobenzamide), together with suitable veterinary carriers, e.g. animal feedstuffs.
Patent GB-1029585-A (GB)
Title: Gun stock checkering
IPC: F41C23/00
Filed: 1964-05-26
Abstract: 1,029,585. Ornamented gunstock. OLIN MATHIESON CHEMICAL CORPORATION. May 26, 1964 [June 12, 1963], No. 46142/65. Divided out of 1,029,584. Heading B6G. The checkering on a wooden gunstook, Fig. 3, is achieved with embossing apparatus described in the parent Specification.
Patent GB-1030820-A (GB)
Title: Improvements in or relating to the manufacture of capacitor strip assemblies
IPC: H01G13/00
Filed: 1964-11-13
Abstract: 1,030,820. Capacitors. SIEMENS & HALSKE A.G. Nov. 13, 1964 [Nov. 13, 1963; Jan. 16, 1964], No. 46238/64. Heading H1M. In a process for manufacturing a capacitor strip assembly, a capacitor strip comprising a varnish layer with a metal layer on one side, the varnish layer is lined on its other exposed side with a layer of strip material while it is still tacky and unsolidified. The capacitor strip, Fig. 2 (not shown), consists of a carrier foil 1 over which is applied a layer 2 of varnish, e.g. of acetyl cellulose, a metal layer 3 and a further varnish layer 4, on the latter of which is adhered insulating strip material 5 of e.g. polystyrene or a further capacitor strip assembly, Figs. 4, 6, 7 (not shown). After adhesion of the strip material the carrier foil may be peeled off. In the embodiment shown in Fig. 6 (not shown), the exposed surfaces of the varnish layer 4, 14 of two capacitor strips are brought into contact and the carrier foils 1, 11 peeled away. In the embodiment shown in Fig. 7 (not shown), the exposed surface of the varnish layer 4 is brought into contact with the base of the carrier foil of a further capacitor strip. In the embodiment shown in Fig. 5 (not shown), the capacitor strip has two metal layers 3, 4 interleaved between varnish layers 2, 4, 7. Adjacent metal layers may be staggered so that contacts may be made to them alternately or pairs of metal layers separated by varnish layers may be staggered and separated by other varnish layers; adjacent metal layers of the respective pairs being interconnected to leave the intervening varnish in a field-free space. The lining strips may be of paper, synthetic resin, polystyrene, polyethylene terephthalate, and the varnish may comprise ethyl cellulose; while the metal layers may be of vaporized aluminium. The strip assemblies may be rolled to form a capacitor impregnated with e.g. chlorinated diphenyl, or chlorinated naphthalene.
Patent GB-1093487-A (GB)
Title: Improvements in or relating to filtering devices
Inventor: HOLYOAK KENNETH
IPC: B01D29/21
Filed: 1963-11-27
Abstract: 1,093,487. Tubular filters for liquids. CROSLAND FILTERS Ltd. Nov. 27, 1964 [Nov. 27, 1963], No. 46763/63. Heading BID. A unit 13, enclosing an element 17, has an upper end wall 15; the unit is removably secured to a head casting 11 by screwing a bolt 24 (retained with the head) into a nut 22 permanently secured to, or formed integrally with, the lower end wall 16. In position, the unit seals against the head casting at 26 and 27. Fuel oil entering at 28 to be filtered, gains access to the outside of element 17 (within unit 13) through holes (not shown) around the edge of end wall 15; filtered oil passes between bolt 24 and hollow projection 31 to outlet 29. The unit 13 thus takes the place of a bowl and separate filter element.
Patent GB-1264611-A (GB)
IPC: B62D7/00
Filed: 1961-12-29
Abstract: 1,264,611. Aerials. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 29 Dec., 1961 [19 Jan., 1961], No. 46797/61. Heading H4A. A device for converting the polarization of electromagnetic waves, adapted to co-operate with a vertically polarized aerial having an essentially circular radiation pattern in azimuth, the assembly radiating a linearly polarized wave forming an angle with the vertical direction, comprises a vertical reflector grid and a horizontal grid reflecting towards the vertical grid components of the electric field adapted to reduce the reflection due to the vertical grid. In Fig. 1 the radiating element consists of a vertical cylindrical sleeve 2 and a horizontal ring 3, and a counterpoise 4 having a substantially conical surface. This is surrounded by an insulating hood 1 which, as shown in Fig. 2, carries a conductive grid formed, for example, by a metallizing coat applied to the outer face of the hood. The horizontal part of the grid consists of logarithmic spirals intersecting any radius OI (Fig. 1) at 45 degrees. The vertical part of the grid preferably comprises elements arranged at 45 degrees to the vertical and alters the plane of polarization of the radiated waves; the horizontal part reduces reflection by the vertical part and improves the standing wave ratio.
Patent GB-1132183-A (GB)
Title: Radio frequency generators
IPC: H03K3/64
Filed: 1967-10-16
Abstract: 1,132,183. Generating oscillations. IKOR Inc. 16 Oct., 1967 [24 Oct., 1966], No. 47102/67. Heading H3B. A generator producing a burst of pulses each containing a wave train in the ultra-high or microwave frequency ranges comprises a coaxial transmission line 20, Fig. 3, the centre conductor of which is divided into a plurality of spaced line portions 30-40, the application of a high potential from a charging circuit 28 causing a travelling rectangular wave to pass along the line which is delayed at each spark gap 42-48 between the line portions, a reflected pulse being produced at each spark gap, in turn, in the delay time interval between arrival of the wavefront at a gap and subsequent breakdown of the gap to the applied potential. Consequently, with the exception of the first gap 42 which is used in association with longer line portion 30 to form the rectangular wave, as many reflected pulses are produced as there are line spark gaps. The reflected pulses may be extracted at the end to which the rectangular pulse is applied, as shown, by providing a T- junction to a lead 68, the remote line portion 40 being terminated by a matching resistor 66. Alternatively, as shown in Fig. 4, the charging source 28 may be connected to the line through a damping resistor 76 and spark gap 82, so that the reflected pulses are re-reflected and pass into a waveguide 88 at the remote end of the line. The coaxial line may comprise a solid or braided outer conductor, e.g. of copper, and a concentric inner conductor separated by a fluid self-healing dielectric such as air, slotted plastic washers supporting the various line portions. Bleeder resistors, not shown, couple the line portions to the outer conductor.
Patent GB-1175207-A (GB)
Title: Modifying Treatment of Shaped Articles derived from Polyesters
Inventor: ROBERTSON MICHAEL MUNDIE
IPC: D06M15/507
Filed: 1966-10-21
Abstract: 1,175,207. Making dispersions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 12 Oct., 1967 [21 Oct., 1966], No. 47166/66. Heading B1V. [Also in Divisions C3 and D1] Apparatus used in the production of aqueous dispersions of polyester black copolymers comprises a J-tube 10, preferably made from glass, having a limb 12, having a funnel shaped opening 16 and shorter limb 14 of larger diameter having a flanged end 18 connected to a homogeniser head 20 through annular washer 22 and spring clips 24, the homogeniser head comprising a cylindrical chamber 26 defined by an apertured cylindrical wall 28, e.g. of stainless steel gauze, in which are rotatably mounted a number of blades 30 which extend radially from a spindle 32 driven, for example, by an electric motor, the J-tube 10 and homogeniser head 20 are mounted in a cylindrical container or beaker 34 filled with liquid so that its level is just above the level of the funnel-shaped opening 16. In operation, rotation of the blades 30 causes liquid to be sucked through the J-tubes 10 into chamber 26 from which it is forced out through the apertured wall 28. The sheering action of the blades 30 and the apertured wall 28 comminute the material and particles thereof form a dispersion in the liquid.
Patent GB-1476075-A (GB)
Title: Manufacture of protective gloves
IPC: B29C41/14
Filed: 1975-11-15
Abstract: 1476075 Method of making gloves T W BARLOW 15 Nov 1975 47166/75 Heading A3V A process for the manufacture of a glove comprises the steps of coating an unsupported knitted fabric with a foamed coating of nitrole-based polymer, p.v.c. and soap, placing the coated surfaces after curing in contact, welding a seam in the shape of an open hand, cutting the seam and cutting across the wrist portion, turning the product inside out and dipping it on a former into a liquid plastics or rubber material and curing it. The knitted fabric has a weight of about 4 ounces sq. yard. A section of the final product is shown in Fig. 9.