baber/WOPTO huggingface dataset:
Patent GB-1368139-A (GB)
Title: Process for making contacts on thin layer circuits
IPC: H01L49/02
Filed: 1971-10-26
Abstract: 1368139 Printed circuits; resistors LIGNES TELEGRAPHIQUES ET TELEPHONIQUES 26 Oct 1971 [5 Nov 1970] 49751/71 Headings H1R and HIS A process for providing localized electric contacts on a tantalum nitride thin film circuit comprises successively depositing a layer a pure tantalum and a layer of the contact forming metal on the circuit film, and subsequently etching the top layer except at the contact locations. A glass substrate 1 is provided with a protective layer 2 of Ta 2 O 5 , a layer 3 of Ta 2 N which provides a resistive film, and a layer 4 of pure Ta, the layers being produced by cathode sputtering of a tantalum target in a vacuum vessel in which there is respectively a partial oxygen pressure for the Ta 2 O 5  layer, a partial nitrogen pressure for the Ta 2 N layer and no active gas for the Ta layer. A final gold layer 5 is also applied by cathode sputtering. Layer 5 is then coated with a layer of photo-resist resin and exposed through a photographic film, and the unwanted resin is washed off to leave a mask 6 over those areas where contacts are required. Layers 5 and, 3 and 4 are subsequently successively etched, for example aqua regia being used to dissolve the gold and a mixture of hydrafluoric and nitric acids to dissolve the Ta and Ta 2 N, a mask 7 being used during the latter operation to protect those areas where resistive patterns are required. The resistance of the resulting circuit may be adjusted by anodic oxidation of the Ta layer.  A silicon transistor (Fig. 6, not shown) may be provided and secured by alloying a silicon wafer with one of the gold contacts and a capacitor may be constructed by depositing a dielectric and second electrode on the contact (Fig. 7, not shown).
Patent GB-1071257-A (GB)
Title: Improvements in lasers
IPC: H01S3/115
Filed: 1963-12-17
Abstract: 1,071,257. Lasers. COMPAGNIE GENERALE D'ELECTRICITE. Dec. 17, 1963 [Dec. 17, 1962], No. 49804/63. Heading H1C. Q-Switching is effected in a crystal laser by including a polarization cell, e.g. Kerr or Pockel cell in the optical resonant cavity and cutting the crystal so that it exhibits birefringence. As shown in Fig. 2, a ruby laser crystal R cut to the shape of a cylinder having its end facets forming a dihedral angle, Fig. 3, the edge of the dihedral being perpendicular to the optic axis OZ of the crystal, is inserted together with a polarizing cell C between mirrors M1, M2 inclined at an angle to each other. Since the crystal is birefringent a light beam passing between the end faces AB is deviated according to two refractive indices corresponding to the planes of polarization YOX and ZOX. The mirrors M1, M2 are arranged so that light passing through the crystal R in direction OX is reflected normally to the mirrors so that a resonant cavity is formed by the mirrors, the angle between the mirrors being #-D, where D is the deviation of the light corresponding to the plane of polarization YOX. In these circumstances, i.e. with no voltage across electrodes 1 of cell C lasing occurs in the crystal R. When a voltage is applied to electrodes 1, the beam becomes elliptically or circularly polarized on passing through cell C so that after reflection by mirror M1 and passing through the cell C for a second time it is polarized in the plane ZOX corresponding to the second refractive index of the crystal. The deviation of the light beam is now such that the mirror M2 does not reflect the light back normally into the crystal and the cavity is detuned resulting in no lasing action.
Patent GB-1075986-A (GB)
Title: Rear suspension systems
IPC: B60G21/055
Filed: 1965-11-24
Abstract: 1,075,986. Beam axle suspensions. FORD MOTOR CO. Ltd. Nov. 24, 1965 [Dec. 17, 1964], No. 49839/65. Heading B7D. Two longitudinal arms 22 are each pivoted at the front end to one end of a line axle 16 and at the rear end to a shackle 28 which is resiliently constrained against pivotal movement by ruber blocks 34, 36 on chassis bracket 26 and connected by a rigid bar 80 to the shackle on the other side to provide axle compliance and ensure that both wheels move back together. A single torque arm 64 is connected to the chassis by shackle 76 and to the axle by pivot 68, rubber blocks 72, 74 between bracket 70, secured to the axle, and the torque arm permitting a degree of " windup ". Lateral compliance is permitted by a vertical spring leaf 56 on each side of the axle differential housing connected at the bottom to the adjacent arm 22 by a transverse link 58 (Fig. I, not shown) and secured at the top to the chassis. The arms 22 diverge slightly in plan (Fig. 1) to provide lateral compliance understeer. Reference has been directed by the Comptroller to Specification 951,045.
Patent GB-1240214-A (GB)
Title: A driving device for metronomes
Inventor: WITTNER RUDOLF
IPC: G04F5/02
Filed: 1969-10-10
Abstract: 1,240,214. Metronomes. R. WITTNER. Oct.10, 1969 [Oct. 12, 1968; Nov. 23, 1968], No.49839/69. Heading G3T. A driving device for a metronome comprises a spring barrel 54, 56 non-rotatably mounted on a fixed shaft 44 and formed with a hook 60 for connection to one end of a driving spring (not shown), the other end of which is connected to a hook on a pinion wheel 42 in driving engagement with a pinion 40 on a shaft 80 to which are secured an escape wheel 38 and pinion wheels 84, 86, 88, 90 for actuating bell striking mechanism, and the escape wheel 38 is formed of a single piece of plastics material.
Patent GB-1287650-A (GB)
Title: Process for the production of simulated suede
Inventor: BOUMAN HENNING BOELIE
IPC: D06N3/00
Filed: 1970-10-21
Abstract: 1287650 Laminates BALAMUNDI NEDERLAND NV 21 Oct 1970 [21 Oct 1969] 49900/70 Heading B5N A process for the production of a simulated suede material comprises forming a porous polyurethane layer on a smooth surface of a first support, said first support being removable from said layer, thereby producing a porous polyurethane layer having a first surface formed on said smooth surface of said first support, adhering a second surface of said layer to a second support and abrading the said first surface of said layer to impart thereto a suede like appearance. The first support which may be removed before or after application of the second support may be a foil of polyethylene, polyester or metal or a glass or metal plate. The second support which is suitably a fibrous web may be adhered to the porous polyurethane layer either directly or with the aid of a glue e.g. a polyurethane. The porous polyurethane layer is preferably made by spreading a solution of a linear polyamide on the first support, immersing the layer in water to coagulate the polyurethane and drying.
Patent GB-1166108-A (GB)
Title: A Pulley Wheel Assembly
Inventor: EMERY REGINALD JOHN
IPC: F16H7/20
Filed: 1966-11-09
Abstract: 1,166,108. Fixed frame pulleys. R. J. EMERY. 9 Nov., 1967 [9 Nov., 1966], No. 50205/66. Heading B8B. [Also in Division E2] In a pulley wheel assembly, a spindle rotatably supporting the pulley 13 has a circumferential groove at each end which for fixed support mates with ribs 29, 30 at one end of a slot 23 on the internal face of each of a pair of parallel frame flanges 14, the latter being connected by a web 16 over one section and unconnected elsewhere. Inclined cam slots 31 at the open end of the flanges initially receive the pulley spindle and as the latter is pushed the flanges deflect outwardly until the spindle ends pass into the slots 23. A reverse movement of the spindle then causes the grooves therein to register with the ribs 29, 30 whereupon the spindle is frictionally gripped. The cross-section of the spindle grooves may be formed square to prevent rotation thereof when mating with the ribs. In the embodiment of Figs. 6 to 9 (not shown) the ends of the spindle are formed with a convex surface and the slots are formed with concave surfaces.
Patent GB-1069178-A (GB)
Title: An improved leather-slitting machine
IPC: C14B1/14
Filed: 1965-11-25
Abstract: 1,069,178. Splitting-machines. MERCIER FRERES. Nov. 25, 1965 [Dec. 2, 1964; Oct. 8, 1965], No. 50235/65. Heading B4B. [Also in Division B3] A machine for splitting hides P comprises an inclined frame 1 supporting an endless cutter blade 8 past which the hides are fed by means of driven rollers 12, 21, the roller 12 being frictionally driven by means of a roller 11 supported by a vertically-adjustable block 10 and being guided by (a) the face 13a of a guide bar 13 and (b) the faces 14a, 14e of a table 14 pivoted to the block 10. The frame has a bed 2 mounted in a recess thereof and has mounted thereon supports 3 at the front ends of which is mounted a vertically adjustable main bridge 4. The block 10 is pivoted, at 10a, to the frame and is vertically adjustable by means of hydraulic jacks 33. A plurality of compensating cylinders 23, 23a, 23b bear against the roller 21 and are supported by the elements 24, 24a, 24b of an intermediate bridge which is supported from the bridge 4, the end elements 24, 24b being pivotally mounted so as to be angularly adjustable. The blade 8 is carried by a pair of flywheels 6, 7 supported from the frame 1 and driven by means of reversible hydraulic motors (36, Fig. 7). The flywheels are adjustable towards and away from each other by means of hydraulic jacks (42, 43, Fig. 7). The edge of the blade 8 is sharpened by means of vertically adjustable driven grinding rollers 48, 49, the roller 49 being angularly adjustable so as to occupy a position on either side of the roller 48. The rear edge of the upper reach of the blade is supported by contact pieces 16 and by a further contact piece (56, Fig. 12) in the sharpening zone, the contact pieces being secured to an adjustable plate 17. In a modification, photo-electric means are provided to actuate a motor (69, Figs. 19 and 20) to displace the blade (8) to compensate for wear of the cutting edge thereof. Further, contact pieces also engage the rear edge of the lower reach of the blade and are secured to a plate which is adjustable simultaneously with the plate (17).
Patent GB-1093154-A (GB)
Title: Improvements in or relating to steering wheels
IPC: B29C65/48
Filed: 1965-11-26
Abstract: 1,093,154. Moulding steering wheels. SOC. ANON. ANDRE CITROEN. Nov. 26, 1965 [Dec. 10, 1964], No. 50269/65. Heading B5A. [Also in Division B7] A method of forming a dished, hollow steering wheel of polycarbonate resin comprises moulding upper and lower halves 1a, 2a, respectively, of the wheel when divided in a plane perpendicular to the turning axis thereof. Each half has two spokes 1b, 2b meeting at a central section 1c which is attached to a steering column. Resistance wires 3 enter the section 1c and pass down the spokes and around opposed semi-circular grooves (1e), (2e) in mating surfaces (1d), (2d) of each half, the half 1a having a locating flange (1f). A current is passed through the wires, thereby locally melting and thermally welding the resin. The wires are then cut off. In modifications the wheel halves are located by reentrant portions (Fig. 4) or nipples (2g) and projections (1g), (Fig. 5) and are moulded together by adhesive, resin softeners, or highfrequency electrical energy. In a further modification the upper half 1a is provided with an integral cross-piece (1h), a downward extension thereof locating in a recess (1i) in the lower part, the extension then being expanded by riveting, while the mating surfaces (1d), (2d) are secured together as described above.
Patent GB-1529498-A (GB)
Title: Transistor having integrated protection
IPC: H01L27/06
Filed: 1976-12-02
Abstract: 1529498 Bipolar transistors RCA CORPORATION 2 Dec 1976 [15 Dec 1975] 50282/76 Heading H1K In a bipolar transistor, e.g. as shown in Fig. 3, the base zone of which has low and high resisitivity sections 24, 26 protection against collector junction breakdown is afforded by zone 32 surrounding and forming a PN junction with base zone section 24 and so located and designed that the depletion region of collector junction 11  punches through to it and hence causes avalanche breakdown of its junction with section 24 before avalanching of junction 11 occurs. Protection against emitter junction breakdown on reverse biasing is provided by conduction across the junction between zone 46 and collector zone 12 which is connected in parallel with the emitter-collector path by the metallization 38 shown. The optional provision of N+ zone 48, which is similarly positioned to zone 32 with reference to the collector junction and also contacts metallization 38 reinforces the collector junction projection by providing a punchthrough path parallel to the emitter-collector path. In the construction shown, which has a generally annular configuration zone 46 and zones 32, 48 are formed by the steps used to produce base zone section 26 and emitter zone 18 respectively.
Patent GB-1103259-A (GB)
Title: Alkylation of isobutane
Inventor: GOLDSBY ARTHUR RAYMOND
IPC: C07C2/62
Filed: 1965-11-26
Abstract: A process for alkylating isobutane comprises the steps of (1) contacting used sulphuric acid containing water and oil contaminants with propylene to form a reaction mixture containing dipropyl sulphate, water and oil contaminants; (2) contacting said reaction mixture with an isobutane rich condensate to form an extract comprising dipropyl sulphate and isobutane, and a raffinate comprising at least part of the water and oil contaminants; (3) contacting said extract with sulphuric acid alkylation catalyst under alkylation conditions in an alkylation zone which is cooled by the evaporation of at least part of the reaction mixture contained therein; (4) separating the acid and hydrocarbon phases; (5) forming from the hydrocarbon phase an isobutane rich vapour and remaining hydrocarbon liquid comprising unvaporized isobutane and alkylate product; (6) condensing said isobutane rich vapour to form an isobutane rich condensate for use in step (2); and (7) separating alkylate product from said remaining hydrocarbon liquid.  An olefin feed-stock may be fed to the alkylation zone, i.e. to step (3).  The process economises in H2SO4 since used acid is returned to the alkylation zone in the form of dipropyl sulphate and released in the zone as 100% H2SO4.
Patent GB-1291505-A (GB)
Title: A foundation for anchoring a guy rope securing a pavilion roof and method for its production
IPC: E04H12/20
Filed: 1970-10-27
Abstract: 1291505 Anchoring guy ropes; diaphragm walls HELD & FRANCKE BAU AG 27 Oct 1970 [29 Oct 1969] 50870/70 Headings E1B and E1H A tie foundation for a pavilion roof comprises a T-section reinforced concrete member A with the head of the T facing the direction from which tensile stress will be applied. Two or three members spaced or abutting may be used in formation. The member is formed by cutting a slit in the ground whilst simultaneously introducing bentonite mud, the slit then being filled from the bottom with concrete which displaces the mud. The side-walls of the slit may be indented by cutters or explosive charges so that the concrete member has integral projections. The guy rope may be attached to the foundation by boring through the ground at an angle.
Patent GB-1285258-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L23/29
Filed: 1970-10-28
Abstract: 1285258 Semi-conductor devices SIEMENS AG 28 Oct 1970 [29 Oct 1969] 5l099/70 Heading H1K Conductive tracks on semi-conductor substrates are produced by depositing a bonding metal layer 2, e.g. of titanium over the entire surface of a substrate 1; depositing a blocking layer 3, e.g. of platinum, over the layer 2; depositing a protective layer 4, e.g. of molybdenum, on the layer 3; masking the layer 4 with a photoresist material 5 so as to expose only that area which subsequently comprises the track; etching away the exposed portion of layer 4, depositing a gold layer 6, electrolytically, on the exposed portion of layer 3; and finally removing the masking material, the remainder of layer 4, and the portions of layers 2 and 3 not below the gold region 6. The layers 4 and 2 may be removed chemically, the layer 3 by means of ion beam etching. Alternative protective layers may be aluminium, titanium or silicon dioxide.
Patent GB-519283-A (GB)
Abstract: 519,283. Photographic shutters. ABBOTT, C. F., and KODAK, Ltd. Oct. 13, 1938, No. 29668. [Class 98 (i)] Means mounted on a camera body are provided for automatically latching the body release member of the shutter, which is equipped for "bulb" but not for time exposures, to hold the release in a depressed position so that "time" exposures may be given. In the form shown, the latch 3 is slidably mounted on a bottom plate 6, and is urged by a spring 12 housed in a slot in the bottom plate into a position in'which a projection engages in a groove 5 in the release plunger 2 when the latter is depressed thereby maintaining, the shutter, which is' set to "bulb," open until the latch is released. The bottom plate 6 is slidably mounted on the camera body, so that the latch may be moved between operative and inoperative positions.
Patent GB-1137124-A (GB)
Title: Thermionic electron emitter
Inventor: GABOR DENNIS
IPC: H01J9/04
Filed: 1964-12-23
Abstract: 1,137,124. Cathode materials. NATIONAL RESEARCH DEVELOPMENT CORP. 8 Dec., 1965 [23 Dec., 1964], No. 52228/64. Heading H1D. [Also in Division C7] A thermionic electron emitter comprises a porous matrix formed of a refractory metal (W, Ta, Mo, or Re), an active metal which is capable of being atomically absorbed on the surface of the refractory metal to provide an electron emissive layer and which is selected from at least one of Th, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Luthere being no other metal present in the emitter which provides substantial electron emission, and a further metallic material, called a mobilizer, which has at least partial solubility in the active metal, and whose molten alloy with the active metal wets the refractory metal (Ti, Zr, Hf, V, Cr, Mn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt, or a rare earth metal distinct from the active metal). During manufacture the refractory, active, and mobilizer metals may be mixed in powder form, and either plasma-sprayed on to a refractory metal foundation, or pressed and sintered in a non- oxidizing ambient. Alternatively, the active metal and mobilizer may be pre-alloyed, and either mixed in powder form with the refractory metal and sintered, or a pre-formed porous refractory metal body may be soaked in a melt of the alloy. If certain rare earth metals, e.g. La or Ce, are used the preparation must be done under a protective liquid. A small quantity of A1 may be added to the emitter as it forms a coherent refractory oxide layer on the surface thereof. The emitter may be used in thermionic generators, cathode-ray tubes, electron microscopes, microwave tubes and transmitter valves, and may be formed as a rod, disc or hollow cylinder. Specific dimensions are given. The surface of the porous body may be polished to partially close large pores. The emitter may comprise 90% W, 8% La and 2% Zr; 88% W, 8% La and 4% Zr; 90% W, 9¢% Th and ¢% Zr; 90% W, 9% Th and 1% Hf; or 90% W, 3% Th and 7% La. Details of operating temperatures, current densities and evaporation rates are given.
Patent GB-1312267-A (GB)
Title: Interpolymers of olefins and polycyclic polyunsaturated hydrocarbons
IPC: C08G61/08
Filed: 1970-11-04
Abstract: 1312267 Diels-Alder adducts of cyclic conjugated dienes and cyclic non-conjugated polyenes GOODYEAR TIRE & RUBBER CO 4 Nov 1970 [1 Dec 1969] 52393/70 Heading C5E [Also in Division C3] Monomers for co-polymerization with an olefin comprise the Diels-Alder reaction product of (A) a cyclic conjugated diene which is a 1,3-cyclopentadiene or a 1,3-cyclohexadiene and (B) a C 8 -C 12  cyclic non-conjugated polyunsaturated hydrocarbon. The preparation of tricyclo[8,2,1,0<SP>2,9</SP>]trideca - 5,11 - diene from 1,3-cyclopentadiene (in the form of its dimer) and 1,5-cyclo-octadiene is described.
Patent GB-1385043-A (GB)
Title: Method of coating a spliced web
IPC: B05C9/06
Filed: 1972-11-14
Abstract: 1385043 Coating webs EASTMAN KODAK CO 14 Nov 1972 [15 Nov 1971] 52441/72 Heading D1L In a method of applying a coating layer to the surface of a web 10 having one or more species S the web passes over rotating backing roller 11 and is coated by contacting a bead 22 of coating liquid produced by coating device 15 and maintained between the edge 23 of the device and the web by a pressure differential created between the upstream and downstream sides of the bead 22 by applying suction to chamber 42 by vacuum pump 43, the pressure differential across the bead being increased from the valve used during normal coating by regulation of valve 45 as the splice S approaches the bead and reduced again to the normal valve when it has passed therethrough. The valve 45 may be operated manually at the required time or by an electrical solenoid (not shown) operating in response to a splice detector located downstream of the coating device 15. During passage of a splice through the bead 22 the pressure differential is typically increased by 0.2 to 1.2 inches of water. The gap between coating device 15 and web 10 may be adjusted by means of screw 35 and wheel 34. Application of gelatin/silver halide solutions to travelling spliced polyethylene terephthalate and cellulose acetate webs is exemplified.
Patent GB-1488037-A (GB)
Title: Device for supporting electric cables from a pole
IPC: H02G7/20
Filed: 1974-12-06
Abstract: 1488037 Supporting cables MANUFACTURE D'APPAREILLAGE ELECTRIQUE DE CAHORS 6 Dec 1974 [11 Dec 1973] 52929/74 Heading H2C [Also in Division E2] A means for supporting electric cables from a pole comprises a plate 1 having a flange at its lower end and a longitudinal rib, and a plurality of detachable cable retaining members 9, 10, which either support and anchor 9 or merely support 10 a cable, each retaining member being provided with a profiled end 11, 12 complementary to the rib so that it can be engaged at the top of the rib and then slid down. The member 10 preferably comprises a passage with flared openings into which a cable is inserted via a slit in the top of the member. Preferably the member 10, but not the member 9 is pivotable about the axis of the rib (Fig. 8, not shown). The plate may be secured to the pole by straps 3, 4 and the members to the plate by a pin inserted into one of the holes 14, 14a, 14b. Preferably the plate and rib is an integral moulding of plastics material, and the members are also of plastics material.
Patent GB-1110079-A (GB)
Title: Method and apparatus for forming laminates
Inventor: MCMAHON EDWARD G
IPC: B32B27/00
Filed: 1965-12-15
Abstract: 1,110,079. Laminates. JOHNS-MANVILLE CORPORATION. 15 Dec., 1965, No. 53338/65. Heading B5N. A method of making a laminate of an elastomeric material and a fluorocarbon resinous material comprises advancing a continuous length of resinous material, said material having applied thereto an uncured thermosetting adhesive, applying a continuous length of calendered uncured or partially cured elastomeric material to the adhesive coated face to laminate the two lengths together and curing the thermosetting adhesive and the elastomeric material. The specified resinous material is polytetrafluoroethylene. The elastomeric material may be a natural or synthetic rubber. The specified adhesive is an epoxy resin. In Fig. 2, a continuous length of rubber stock 15 formed between calender rolls 10 and 12 is bonded between rolls 12 and 22 to a length of resinous material 18 previously coated with adhesive, the resultant roll of laminate 26 being placed in an autoclave and heated to cure the adhesive. Fig. 3, shows an alternative embodiment in which the two layers are combined under tension.