baber/WOPTO huggingface dataset:
Patent GB-1478547-A (GB)
Title: Vinyl and vinylidene halide stabiliser compositions of antimony organic sulphur-containing compounds and metal carboxy-lates
IPC: C08L33/02
Filed: 1974-10-31
Abstract: 1478547 Vinyl halide stabilizers comprising organo-sulphur compounds containing antimony DART INDUSTRIES Inc 31 Oct 1974 [20 Nov 1973] 47186/74 Heading C3P A mixture for use as a stabilizer for a vinyl halide resin comprises (i) at least one organosulphur compound of antimony which contains an Sb-S linkage, and (ii) at least one alkali or alkaline earth metal salt of a carboxylic or thiocarboxylic acid. In the examples, polyvinylchloride is stabilized with, as (i) antimony tris-(isooctylthioglycolate), antimony tris - (isooctylmercaptopropionate), antimony tris - (laurylmercaptide), n - dodecylmercaptoantimony bis - (isooctylthioglycolate), antimony tris - (glycoldimercaptoacetate) or antimony tris - (ndodecylthioglycolate), and, as (ii) calcium stearate, barium stearate, magnesium stearate, strontium stearate, sodium stearate, lithium stearate, calcium benzoate and calcium laurate.
Patent GB-1369595-A (GB)
Title: Manufacture of steel and ferrous alloys in a converter
IPC: C21C5/38
Filed: 1970-10-05
Abstract: 1369595 Making steels I G NIXON 21 Sept 1971 [5 Oct 1970] 47231/70 Heading C7D [Also in Division F4] Molten metal is refined by blowing it with a decarburizing gas the composition of which is such that the gases leaving the vessel are reducing to wustite at the operating temperature. The vessel is operated as a closed system, the exhaust gases being cooled by a stream of quench gas and recovered through a conduit connected to the vessel through a gas-tight joint, the latter preferably being cooled directly by the quench stream, which may react endothermically with the exhaust gas. The feed gas may be a mixture of CO, CO 2 , H 2  and H 2 O, or a reaction mixture which generates those gases in the vessel, while the quench gas may be liquid or gaseous hydrocarbons, such as natural gas, naphtha or fuel oil, possibly mixed with CO 2  and/or H 2 O or H 2 . Quenching may be effected in two stages, the first to 1300‹ -1400‹ C and the second to 900‹ - 1100‹ C, and the gases may then be used to reduce metallic ores. The process may be operated continuously or batchwise. In one embodiment molten metal is introduced through conduit 2, and flows in countercurrent to a gas stream generated by oxy-fuel burner 16, the final product being tapped intermittently at 24. Further gas is produced by fuel-oxygen combustion from lances 17, 18, while a quench gas stream is introduced through line 6 and gas-tight joint 5, from which the effluent gas is also withdrawn.
Patent GB-1236518-A (GB)
Title: Carburettor float bowl fuel inlet valve
IPC: F02M1/00
Filed: 1969-09-30
Abstract: 1,236,518. Valves. FORD MOTOR CO. Ltd. 30 Sept., 1969 [20 Nov., 1968], No. 47935/69. Heading F2V. [Also in Division F1] In a fuel inlet valve for a carburettor float chamber a two-stage fuel inlet valve has a restricted opening providing a fine control of the fuel supply and an unrestricted opening provides a high rate of fuel flow. Fuel under pressure passes into the chamber 10 through inlet 14, chamber 32 arid passages 68, 30. The fine control valve 50 is moved downwardly when the fuel level falls and is closed by fuel pressure at the inlet. When high rates of fuel flow causes a further drop in the fuel level a projection 56 from a second valve member 34 is engaged by the valve member 50 and valve member 34 is unseated allowing unrestricted flow through passage 30.
Patent GB-1070983-A (GB)
Title: Partitioned box
IPC: B65D5/66
Filed: 1963-12-06
Abstract: 1,070,983. Boxes for chicks. A. I. ANDERSSON. Dec. 6, 1963 [Dec. 14, 1962], No. 48269/63. Heading B8P. To erect a partitioned box for live chicks from a single blank of corrugated cardboard extension panels 14, 15 and 17 on the end walls 13 are folded so that the wing panels 14 and 15 lie within the side walls 2 and 3 and the outer panels 17 lie across the box parallel with the end walls 13. Projections 19 on the panels 17 interlock within slots 20 provided in the wing panels 14 and further within slots 6 in portions 4 and 5 which are cut out of the side walls 2 and 3 and which when erected are inset from said side walls. Triangular areas 16 defined by fold lines N and M cause the end walls 13 to be inclined slightly inwardly so that a lid portion 10 adequately covers the area so defined. The side wall 2 has an edge area 9 with flaps 25 cut therefrom such that an edge area 11 of the lid portion may be engaged inside the flaps with the outer part of the flap passing through slots 27 cut from the area 11. Ventilation holes 21, 30 and 31 are provided and the channels of the corrugated cardboard extend longitudinally of the panels 17 so that air may flow from the edge of the projections 9 along the channels to the box interior. In a modification the area 9 is omitted and tongues 36 projecting from the upper edge of the side wall 2 replace the flaps 25. The tongues 36 of one box are received in openings left from the feet forming portions in another box when boxes are stacked.
Patent GB-1485593-A (GB)
Title: Production of photographic silver halide emulsions
IPC: C08F20/52
Filed: 1975-11-24
Abstract: 1485593 Polymers of 2-acrylamido-2-methylpropane sulphonates FUJI PHOTO FILM CO Ltd 25 Nov 1975 [26 Nov 1974] 48292/75 Heading C3P [Also in Division G2] Polymers for use as flocculating agents for photographic gelatino silver halide emulsion comprise a homopolymer of the Formula I wherein M represents H, Li, Na, K or (wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> each represent a hydrogen atom or an alkyl group containing up to 5 carbon atoms, the sum of the carbon atoms in R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> being not more than 10), or a copolymer of the compound of Formula I with certain defined co-monomers. Examples are given of the homo-polymerization of potassium 2 - acrylamido - 2 - methylpropanesulphonate, and of the copolymerization of that monomer with acryloylmorpholine.
Patent GB-1013219-A (GB)
Title: A nut device for snapping engagement in an aperture in a support
IPC: F16B37/00
Filed: 1962-12-28
Abstract: 1,013,219. Screw-sockets. UNITED-CARR Inc. Dec. 28, 1962 [Dec. 28, 1961], No. 48924/62. Heading F2H. A fastener, e.g. of synthetic plastics material and for receiving a screw, has a head 12 and two legs 16 for passing through a hole in a support; a web 34 joins the legs and closes an extension of an aperture 14 through the head. When the screw has pierced the web 34 the latter forms a seal between the screw and fastener. A pair of bracing walls 42 with notches 44 extend between the legs 16 at their side edges. A sealing ring 30 may be of the same material as the fastener; it may be integral with the fastener; it may be of vinyl or foam plastics material. The knee 24 on each leg 16 may be a sharp ridge.
Patent GB-970454-A (GB)
Title: Improvements in demodulators
IPC: H03D1/00
Filed: 1962-12-28
Abstract: 970,454. Phase sensitive demodulators. NORTH AMERICAN AVIATION Inc. Dec. 28, 1962 [Dec. 28, 1961], No. 48942/62. Heading H3A. A phase-sensitive demodulator for the output signal, Fig. 2a, produced by an A.C. sensing element 10 which has an amplitude and phase (0 degrees or 180 degrees) dependent on the magnitude and sense of movement of a part 11 relative to a part 12, comprising means for adding to the output signal a bias signal derived from the source feeding the sensing element and having an amplitude greater than the maximum output of the sensing element, means for demodulating the combined signal and the bias signal and for differentially combining the outputs of the demodulators. The sensing element 10 is fed from A.C. source 15 which also provides the bias signal at the secondary of transformer 26. The combined signal, Fig. 2c, is demodulated by rectifier 32 and applied via filter 33 and shaping circuit 50 to a circuit comprising resistors 56 and 57 in which the signal is differentially combined with the output of rectifier 37 which demodulates the bias signal. The resultant signal at point 58 modulates the output of source 15 in a modulator circuit 60 and the A.C. output of this circuit is supplied to A.C. amplifier 64. The phase of the bias signal is adjusted by capacitor 69 and resistor 68 to provide a quadrature component in the bias signal with reference to the supply to the sensing element, which is adjusted to cancel the quadrative component present in the output signal of the sensing element at its null position.
Patent GB-1432215-A (GB)
Title: Light-emitting semiconductor diodes
IPC: H01S5/32
Filed: 1973-12-19
Abstract: 1432215 Electroluminescence SIEMENS AG 19 Dec 1973 [28 Dec 1972] 49001/73 Heading C4S [Also in Division H1] A light emitting semiconductor diode has a P-I-N junction at which free carriers recombine to produce radiation, the diode consisting of one or more s./c. compounds and having a N-type zone and P-type zone separated by an intrinsic weakly conductive intermediate zone containing few charge carriers, doped with a substance producing isoelectronic centres and of thickness < the diffusion length of the free charge carriers in this zone. The three layers need not be of the same s./c. conductor and preferably differ little in their lattice constants. Operation may be in the forward or blocking direction, holes and electrons being injected into layer 2 and recombining at the isoelectronic centres. As a laser, layers 1 and 3 preferably possess a greater band gap energy than layer 2. Layers 1, 2 and 3 may be (Ga 1-x Al x )P with Zn dopant, pure GaP with N and/or Bi and (Ga 1-x Al x )P with Te dopants. Dopant concentrations are given. Displacement towards red emission is obtained with layers 1 and 3 of (GaAl)As 1-x P x  and layer 2 of GaAs 1-x P x . The structured device may be obtained by differing proportions of a basic mixed crystal, e.g. or InGa x P 1-x  or Ga x Al 1-x P. Emissions towards blue and red respectively may be obtained by Ga 1-y Al y P for layers 1 and 3 and Ga 1-z Al z P for layer 2 with 0 # z < y # 1 and similarly for In x Ga 1-x P. The Fabry Perot resonator of the layer of Fig. 2 (not shown) includes reflective surfaces (6), (7), and changes in refractive index produce an optical waveguide between layers 1 and 3. Additional N or Bi doping of layers 1 and 3 would not disturb production of the layer structure and formation of the isoelectronic centres, e.g. using gaseous ammonia, can be effected during the entire growth period. The thicknesses of layers 1 and 3 preferably do not exceed 10 Á for heat conductivity purposes, and layer 2 may be 0À1 to 3 Á, e.g. 0À5 Á thick. Three structures of GaAlAsP; InGaAlP and GaAlP for each set of three layers are specified.
Patent GB-1448238-A (GB)
Title: Chairs
IPC: A47C3/20
Filed: 1973-10-22
Abstract: 1448238 Adjustable dental chairs SIEMENS AG 22 Oct 1973 [21 Oct 1972] 49116/73 Heading A4J An adjustable height dental chair is mounted on a base 1 by a parallelogram linkage 40, 41 pivotally connected to the base and to a chair support 3, adjustment of the chair being effected by a nut and spindle 54, 58 connected between diagonally opposite corners of the parallelogram and driven by an electric motor 39 preferably via a V-belt drive 48, 50 and a worm and wheel 46. Preferably the spindle 58 is connected via the worm and wheel to the lower pivot axis 24 of the lower link 41 of the parallelogram linkage and the nut is connected to the upper pivot axis 23 of the upper link 40. The nut may comprise two interconnected portions 72, 74, portion 72 containing a ball circulation portion for engagement with the spindle, portion 74 being connected to the pivot axis 23 and the two portions being inter-connected by three screws 75 each arranged with a small axial clearance 76 such that if the driving spindle is subjected to tension the two portions 72, 74 lift away from each other with portion 74 operating a safety switch 73 which switches off the motor.
Patent GB-1249469-A (GB)
Title: Photographic products and processes
IPC: G03F7/07
Filed: 1968-10-18
Abstract: 1,249,469. Photographic relief images. INTERNATIONAL POLAROID CORP. Oct. 18, 1968 [Oct. 19, 1967], No. 49488/68. Heading G2C. Relief images are prepared by (1) forming a silver image in a supported layer by a silver salt diffusion transfer process carried out in the presence of a non-film forming anti-adhesion agent, and (2) removing the parts of the layer containing the deposited silver image using an aqueous liquid. The amount and nature of the anti-adhesion agent (which is preferably a surfactant or sequestering agent in the receiving layer, silver halide emulsion or a processing solution) are such that the layer is sufficiently weakened in the areas of deposited silver to permit its removal by water. Preferably the support is hydrophobic (e.g. polyvinyl butyral) and the layer comprises a continuous matrix of colloidal inorganic particles (especially siliceous). The image formed may be visible (e. g. by using a material in which the support and layer have distinct colours, or by dyeing the support) or used as, or to form, a printing plate.
Patent GB-1127420-A (GB)
Title: A brake for a twine arm
IPC: B65B13/08
Filed: 1966-10-26
Abstract: 1,127,420. Binding machines. B. H. BUNN CO. 26 Oct., 1966 [3 Oct., 1966], No. 49747/67. Divided out of 1,127,418. Heading B8C. In a tying machine, the twine arm 32, that rotates to carry twine around a bundle of articles, is braked by a pad 64 of a resiliently compressible material, covered with a low friction material 65 to prevent wear. The compressible material 63 may be sponge rubber, and the material 65 may be nylon.
Patent GB-1443487-A (GB)
Title: Ring nozzle for sausage filling machine
IPC: A22C11/02
Filed: 1974-11-18
Abstract: 1443487 Twisting sausages ALBERT HANDTMANN 18 Nov 1974 [11 Dec 1973] 49760/74 Heading A2B A machine for forming sausages comprises (Fig. 1) a conventional twisting-off tube 16 rotatably mounted in housings 2, 9 and 11, holding a skin 19 which, as it is filled is pulled off tube 16 through ring nozzle 22, coaxially and non-rotatably mounted, which consists of cylindrical part 31 and holding surface 32 capable of gripping the sausage to prevent it turning when the skin is twisted by rotation of twist-off tube 16. This is achieved by providing an annular ridge 33 having therein radially extending equispaced grooves which engage the sausage as it swells to remain in contact with the enlarged portion 32 of nozzle ring, thereby preventing the sausage from twisting.
Patent GB-499511-A (GB)
IPC: F16D65/10
Abstract: 499,511. Brake drums. FODENS, Ltd., FODEN, W., and TWEMLOW, E. Aug. 18, 1937, No. 22631. [Class 103 (i)] Brake drums are provided with a number of spiral ribs d each extending around and from end to end of, the drum to strengthen it and to keep it cool.
Patent GB-1515671-A (GB)
Title: Echo sounding apparatus
IPC: G01N33/22
Filed: 1975-11-13
Abstract: 1515671 Echo-sounding; pulse discrimination arrangements DEFENCE SECRETARY OF STATE FOR 13 Nov 1975 [19 Nov 1974] 50163/74 Heading G1G Echo-sounding apparatus comprises an arrangement in which pulses usually of ultrasonic frequencies arriving at a receiver 5 (including the transmission pulse) are amplified and processed in a detector 7 to yield the pulse envelope A, B, C and passed to a comparator 8 both directly and through a delay 9. The comparator 9 triggers a pulse generator 10 when any delayed pulse envelope A' exceeds a direct pulse envelope A. The separation of the resulting times T 1 -T 3  is an equivalent but more accurate indication of the time separation of the echo pulses B and C from the pulse A, thus improving discrimination. The time delay is arranged to be shorter than the duration of the pulses. The apparatus may be used to detect faults in solid rocket fuel, Fig. 1, (not shown) in which only pulses of relatively low ultrasonic frequency can be used.
Patent GB-1493294-A (GB)
Title: Electric window regulator for motor vehicles with means for manual emergency operation
IPC: E05F15/16
Filed: 1975-12-08
Abstract: 1493294 Clutch control, securing handles and disconnecting couplings LAMES SpA 8 Dec 1975 [17 Dec 1974] 50250/75 Headings F2L and F2U [Also in Division E2] In an electric window regulator of the type comprising a grooved drum 20 driven through reduction gearing 13, 14 by an electric motor, an auxiliary handle 31 may be coupled to the drum 20 for manual operation of the regulator, the drive between the gear 13 and the drum 20 being disconnected by a shank 38 which is screwed into the drum shaft 17. The drive between the gear 13 and the drum 20 comprises a splined recess 21 in the gear shaft insert 12 and a splined recess 22 in the shaft 17 on which the drum is keyed. A splined plug 23 is positioned by a spring 24 to engage the splines in both recesses 21, 22 whereby the gear 13 can drive the drum. When the shank 38 is screwed into the shaft 17 the end pushes the plug 23 against the spring 24 until it disengages from the splines in the recess 22. The drum may then be rotated by the handle 31 which has a polygonal cavity 36 which engages a complimentary formation 18 on the shaft 17.
Patent GB-1031126-A (GB)
Title: Macroporous vitreus carbon and process for the manufacture thereof
IPC: C01B32/384
Filed: 1964-12-14
Abstract: A macroporous vitreous carbon, having a density of from 0.10 to 0.40 g./cm.3, a crush resistance of from 5 to 20 kg./cm.2, and preferably permeability to gases at 5 mm. Hg. pressure of 32.8 litres/hr. cm.3 and to water at 20 g./cm.2 pressure of 6.4 litres/hr. cm.3, may be made by impregnating a macroporous support with a thermosetting resin and carbonizing the impregnated support in an inert or reducing atmosphere.  The support, which preferably has a density of 0.25 g./cm.3, may comprise a polyurethane or a polyolefin, for example in the form of a foam.  The resin, which may be applied in a solvent, for example benzene, may comprise a phenolic or furanic resin; a suitable catalyst may be added to the resin. Impregnation may be effected by immersion of the support in a bath of the resin; alternatively, the impregnation may be carried out in an autoclave under alternate vacuum and pressure.  The dried weight of the impregnated support is preferably ten times the original weight of the support.  Preferably, the impregnated support is allowed to stand for 4 to 8 days to allow the resin to polymerize and harden, and is subsequently carbonized by heating to a temperature of 1200 DEG  C. at an average heating rate of from 5 DEG  to 10 DEG  C. per hour. The carbonized product may subsequently be subjected to a graphitization or purification treatment at a higher temperature.
Patent GB-1414525-A (GB)
Title: Hydraulic actuators for slide distributors
IPC: F15B15/20
Filed: 1972-11-03
Abstract: 1414525 Valves HYDRAULIQUE BG 3 Nov 1972 [4 Nov 1971] 50882/72 Heading F2V Main distributing valves T1-T3 arranged in a bank are connected to faces N1-N3 of respective piston actuators V1-V3 connected to supply and return lines P, R via connector tubes 18, each actuator having a pilot valve mounting face with pores C, D (connected to lines RP respectively) and ports E, F connected to opposite sides of the actuator piston 12 (Fig. 5). Each pilot valve S has ports complementary to ports C-F and may be mounted on the actuator via the intermediary of an auxiliary unit Z which may contain, e.g., a non- return valve or a throttle. The pilot valve may be operated by solenoids or by fluid pressure, and the main valve members may additionally be operable manually. Main valve T4 in the bank has no actuator V connected thereto so longer tubes 18<SP>1</SP> are used to connect actuator V1 to valve Vs controlling the supply and return flows.
Patent GB-1037960-A (GB)
Title: Brake mechanism
IPC: B65H23/10
Filed: 1964-12-15
Abstract: 1,037,960. Feeding webs. U.S. PARTITION & PACKAGING CORPORATION, 'and D. F, CUNNINGHAM. Dec. 15, 1964 [Dec. 16, 1963], No. 51007/64. Heading B6B. [Also in Division F2] Paperboard 128 is fed intermittently by the feed rolls 30 of a partition fabrication or assembling machine. A two-shoe brake (see Division F2) fitted to a feed roll shaft is operated intermittently, by a cam on a continuously driven shaft, to hold the paperboard while the severing knife 130 is operated.
Patent GB-1316162-A (GB)
Title: Fluid-tight flexible and tamper-proof caps for containers having a matching neck profile
IPC: B65D41/48
Filed: 1970-10-27
Abstract: 1316162 Tamperproof closures CAPTOCAP Ltd 27 Oct 1970 [19 Nov 1969] 51057/70 Heading B8T A fluid-tight tamper-proof assembly comprises substantially matching profiles on a container neck 2 and cap skirt 14. Gaps 20 accommodate skirt ribs 15, 17, 19, when force is exerted on the cap in the direction F thereby resisting cap removal which, therefore, requires the breaking of the cap. In a modification, two ribs on the neck and skirt are employed. In a further embodiment, Fig. 5, a removable tear strip 13 is incorporated. Removal of the strip 13 forms a hinge portion about which the upper cap can pivot to allow contents removal. An inner skirt 41, having a rib 42, together with rib 44, 15, increases the fluid-tight characteristics of the assembly. A separate seal member (Fig. 7, not shown), may replace the inner skirt and ribs 41, 44, 15.
Patent GB-1305577-A (GB)
IPC: G11B21/02
Filed: 1970-10-28
Abstract: 1305577 Magnetic disc recording and playback INTERNATIONAL BUSINESS MACHINES CORP 28 Oct 1970 [17 Nov 1969] 51106/70 Heading G5R A transducer 20 and a disc record drive shaft 33 are coupled to move in synchronism so that the transducer moves radially across a rotating disc record so as to follow a spiral track thereon and the drive speed varies with the radial position of the transducer so that the relative speed of the transducer and the adjacent track portion of the record is substantially constant, means being provided for backspacing the record and the transducer by disconnecting the drive and effecting a reverse rotation of the record through an angle determined by the radial position of the transducer. The length of recording replayed after such backspacing is thereby maintained substantially constant. As shown, movement of a slider 3 to the "review" position depresses a button 49 to disconnect the drive and rotates an arm 52 which pulls a cord 55, rotating a sector 67 so that a frictional surface 68 drives the shaft 33 in a reverse direction until the arm 52 strikes a stop carried by the transducer carriage 18.
Patent GB-1440931-A (GB)
Title: Composite materials useful in bearings
IPC: B32B27/00
Filed: 1972-05-06
Abstract: 1440931 Impregnated fabric; PTFE composites TBA INDUSTRIAL PRODUCTS 3 Aug 1973 [6 May 1972] 51421/72 Heading B5N [Also in Division F2] A composite comprises a preformed non- porous layer of PTFE bonded to a layer of cured, fibre-reinforced thermoset resin material wherein either (1) the PTFE is unetched but contains a filler selected from asbestos fibre, glass fibre, ceramic fibre, metal powder, metal oxide, mica, or mixtures thereof with graphite and/or MOS 2 , the PTFE layer being optionally bonded to the other layer by means of an adhesive other than an aminotriazine-aldehyde resin; (2) the PTFE has been etched and contains as filler asbestos fibre, ceramic fibre, metal powder, metal oxide, mica or MoS 2 ; or (3) the PTFE has been etched and is bonded to the other layer by means of an adhesive other than an aminotriazine-aldehyde resin and is either unfilled or contains carbon or MoS 2  as filler. The fibre-reinforced layer may be of non-woven asbestos fibre felt, woven asbestos fabric or glass fibre mat which is impregnated with a phenolic, polyester, polyimide, silicone or epoxide resin. The metal powder filler may be of bronze, lead, stainless steel, tin or zinc and the metal oxide may be cadmium oxide or iron oxide. Etching may be effected by use of Na/ naphthalene in THF and the adhesive (when used) may be an epoxy/polyamide adhesive, bonding being effected under heat and pressure. The composites may be formed as pipes or bearings and the free surface of the fibre layer may be bonded to a metal backing layer.