baber/WOPTO huggingface dataset:
Patent GB-1319429-A (GB)
Title: Arrangement for locking together two parts of a body of an open- end spinning unit against opening in the course of spinning
IPC: D01H4/08
Filed: 1971-09-13
Abstract: 1319429 Break spinners VYZKUMNY USTAV BAVLNARSKY 13 Sept 1971 [14 Sept 1970] 42524/71 Heading DID In a break spinning device in which the spinning chamber 7 is housed in a two part body, the two body parts are held together by a lock held engaged by either the reduced pressure within the chamber 7, Fig. 2, or the raised pressure surrounding the chamber 7, Fig. 3. The Fig. 2 embodiment employs a spring biassed piston 20 sensitive to the chamber 7 pressure via a pipe 15' to operate a rockable catch lever 16. The Fig. 3 embodiment employs a diaphragm 24 communicating with the high pressure region 2a' via a channel 26 to hold a peg 27 in engagement with a recess 28. The lock prevents opening of the device while the chamber 7 is rotating.
Patent GB-1327870-A (GB)
Title: Process for the manufacture of a vaccine against infectious bursitis of chickens
IPC: A61K39/12
Filed: 1971-09-13
Abstract: 1327870 Attenuated infective bursitis virus and vaccine thereof BEHRINGWERKE AG 13 Sept 1971 [12 Sept 1970] 42552/71 Heading A5B An attenuated infective bursitis virus, or a vaccine comprising such virus, is prepared by infecting one or more mice with infective virus, and attenuating the virus by serial passages in mice and extracting the attenuated virus so obtained, and, if desired, preparing a vaccine therefrom in known manner. The mice may be treated with an immuno-suppressive agent, preferably by subcutaneous injection, after infection of the mouse with the bursitis virus, in an amount of from 50 to 500γ of the agent per mouse. The immuno-suppressive agent may be a corticosteroid such as cortisone, hydrocortisone, prednisone, prednisolone, 6-methyl-prednisolone, dexamethasone or paramethasone and their physiologically tolerable esters; or an anti-metabolite e.g. 6-mercaptopurine; an alkylating agent e.g. cyclophosphamide; and antilymphocytic serum or antilymphocytic globulin. The mouse may be a baby mouse having an age of 1 to 3 days preferably of the white mouse or Mastomys natalensis species, and may be infected with a suspension isolated from the Bursa fabricii of a bird infected with bursitis from 18 to 25 serial passages in mice may be effected and the immuno-suppressive agent is not used until after 10, 11 or 12 passages in mice. The attenuation process may also comprise 1 or more passages in chicken eggs, preferably effected before the serial passages in mice. The attenuated virus or vaccine, which may comprise the viral suspension containing a protective colloid, may be lyophilized. Commercially reared birds are immunized against infective bursitis by administration thereto, preferably by means of the drinking water, of the attenuated virus or vaccine prepared therefrom.
Patent GB-1309574-A (GB)
Title: Device for detecting helium leaks
IPC: G01M3/20
Filed: 1970-09-07
Abstract: 1309574 Leak detectors COMMISSARIAT A L'ENERGIE ATOMIQUE 7 Sept 1970 [19 Sept 1969] 42708/70 Heading G1S A device for detecting helium leaks through a wall comprises a detector 1 adjusted to helium, a pumping system for said detector, a vacuum circuit including said pumping system, absorbent means for selectively retaining gases and preferentially passing helium connected in said circuit upstream of said pumping system in close proximity to said detector, said means including a tube 2 containing activated charcoal and including means 3 for adjusting the temperature of the charcoal. The detector 1 is preferably a mass spectrograph, and the U-shaped tube 2 preferably contains granulated coconut charcoal. The means 3 is a Dewar flask containing liquid nitrogen at a temperature of 77‹K and the tube 2 is connected to the detector 1 by a spigot 6. A probe 4, described in detail Fig. 3 (not shown) is connected to the tube 2 by a rubber pipe 5. The vacuum circuit may be the pumping circuit of the spectrograph or an additional circuit connected to the spigot 6 in parallel with the spectrograph. In a modified arrangement Fig. 2 (not shown) two tubes 2 are connected in parallel to the detector through individual valves thus enabling one tube to be regenerated by removing the Dewar flask while the other tube is in operation.
Patent GB-1301139-A (GB)
Title: Improvements in or relating to methods of manufacturing housings for semiconductor decvices
IPC: H01L21/50
Filed: 1970-09-07
Abstract: 1301139 Semi-conductor devices SIEMENS AG 7 Sept 1970 [8 Sept 1969] 42724/70 Heading H1K A method of manufacturing a housing for a semi-conductor device comprises positioning a base portion 5, and a wall portion 4, both of sinterable insulating material, on immediately opposite faces of a portion of a lead frame 1, 1a, forming part of a perforated metal strip Bd, and sintering to form a box-like housing into which tongue-like parts of the lead frame project, sealed between the base and wall portions, and placing a semi-conductor device in the housing so that its electrodes automatically make contact with the tongue-like projections. In the method the base portion is placed in a locating recess in a lower part of a graphite mould, and the metal strip placed over it, positioned by locating pins on the mould passing through apertures 2 in the strip. The upper part of the mould is placed over the lower part so that a duct in it is located over the base portion, and the wall portion of the housing inserted into the duct and held against the base portion, under pressure, by a graphite punch while sintering takes place at about 1000‹ C. A device may be placed in the housing, and a sinterable cap used to hermetically seal the housing. Unnecessary parts of the lead frame may be severed, and in the method a plurality of housings may be formed simultaneously in the mould, serpentine portions 7 of the frame enabling differential expansion of the strip and mould to take place during sintering. The lead frame may be of gold plated metal form of iron, nickel and cobalt, the housing being of glass or glazed ceramic materials. The device may be an integrated circuit.
Patent GB-1082816-A (GB)
Title: Lockwasher and fastener assembly
Inventor: POUPITCH OUGLJESA JULES
IPC: F16B39/24
Filed: 1964-10-20
Abstract: 1,082,816. Locking nuts and bolts; securing washers against loss. ILLINOIS TOOL WORKS Inc. Oct. 20, 1964, No. 42771/64. Heading F2H. A resilient dished washer has abutment surfaces 26 on its convex face 24 produced by indenting which also forms inclined surfaces so that, when used with a nut or screw with a bearing face having abutments 38, on turning of the nut or screw in one direction, e.g. for tightening, the abutments 26, 38 engage to turn the washer but turning in the opposite direction compresses the washer since the abutments 38 ride on the surfaces 28. The washer is made captive on a screw by rolling the thread on a blank 22 with the washer in position adjacent the head 36. The inclination of the surfaces 28 may be greater than that of the helix angle of the screwthread so that the washer must be compressed for unscrewing. The indentations produce projections 30 on the concave side of the washer to prevent complete flattening of the washer on tightening. There may be indentations 44, Fig. 5, near the washer edge to produce protrusions to increase friction with the workpiece against which the washer is compressed. In a modification, Fig. 7, the abutments 26a and inclined surfaces 28a are arranged as shown and the washer 20a is used with a fastener having a bearing face with complementarily-shaped projections. The indentations need not produce the projections 30a on the concave side of the washer, Fig. 14 (not shown).
Patent GB-963014-A (GB)
Title: Improvements relating to electric arc stud welding
Inventor: STOKES JOHN GORDON
IPC: B23K9/20
Filed: 1960-12-13
Abstract: 963,014. Welding by pressure. CROMPTON PARKINSON Ltd. Nov. 21, 1961 [Dec. 13, 1960], No. 42858/60. Heading B3R. [Also in Division H2] In a method of stud welding wherein a pilot arc is struck to precede the main arc, the pilot arc is of sufficient intensity to produce preheating of the stud. The control is performed by an auxiliary unit 3 arranged between a known type of controller 1 and the tool 2, the unit comprising a relay 34 energized when a pushbutton 9 is closed which connects through contacts 34a a resistor 38 between a supply 4 and stud and workpiece 6, 39. The potential across resistor 38 energizes through contacts 50a a relay 40 closing contacts 40a, 40b, 40c. Contacts 40b provide a holding circuit for relay 34, 40c energizes the solenoid 12, which retracts the stud, and 40a energizes a slow-to-operate pneumatic delay relay 50 timing the preheat current after which delay-say 3 seconds-contacts 50a open, de-energizing slow-to-release relay 40, and contacts 40c close, energizing relay 60, closing contacts 60a, transferring control back to the controller 1 initiating the normal cycle, by supplying full welding current. Specifications 673,743 and 764,764 are referred to.
Patent GB-1315762-A (GB)
Title: Child-proof safety package
IPC: B65D41/06
Filed: 1971-09-15
Abstract: 1315762 Safety caps REFLEX CORP OF CANADA Ltd 15 Sept 1971 [21 Sept 1970 12 March 1971] 42938/71 Heading B8T A safety cap 16 joined to a plastics member 24 which includes a sealing portion 28 and a biasing portion, consists of a base 18 and a skirt 20 provided with lugs 22 for engaging the locking elements 8 on the outer surface of the container 2, the lugs 22 being held in the notch 10 (Fig. 3) by a spring portion 34 of the biasing portion. The cap 16 is applied to a container 2 by placing a seal 36 into the mouth of the container and applying axial motion to the cap base 18, the seal 36 and flange 40 being brought into sealing contact with the inside of the container mouth and flange 6 respectively by the action of the cap base 18 on the abutments 38. Lugs 22 are engaged with notches 10 by the rotation movement of lugs 22 along cam surfaces 14 into notches 10, the sealing and biasing portions remaining stationary during cap rotation owing to the movement of stem 44 in opening 42, the stem 44 being held in sealing contact with top portion 30 by a nipple 46. The cap is disengaged by applying a downward motion to the cap and rotating the cap to free lugs 22 from the notches 10. Where the sealing portion 28 is permanently fixed to the container 2, the nipple 46 on stem 44 is not provided, allowing for the dispensing of the container contents through the opening 42 when the cap 16 is removed. The top portion 30 may be convexly shaped and the side wall 32 cylindrical or tapering inwardly from a large diameter top portion 30.
Patent GB-964337-A (GB)
Title: Improvements in or relating to switching circuits
IPC: H03B5/12
Filed: 1960-12-15
Abstract: 964,337. Keying carrier oscillations. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 15, 1960 [Dec. 18, 1959], No. 43212/60. H3R. A pair of back-connected, voltage-controlled capacitors 4, 5 and a capacitor 3 form two arms of a bridge circuit completed by an inductance 2, the potential applied at 6 determining whether feedback to the transistor base is positive or negative, and switching the oscillations on and off. The capacitors 4, 5 do not rectify, being reverse biased.
Patent GB-998992-A (GB)
Title: Improvements in or relating to organosilicon compositions
IPC: C09K23/54
Filed: 1962-11-16
Abstract: A composition of substantial foaming tendencies consists essentially of (1) a solvent selected from liquid hydrocarbons and halohydrocarbons, containing therein (2) from 0.01 to 10% by weight of (1) of a sulphur-containing siloxane copolymer containing an average of 1.75 to 2.1 organic radicals per Si atom, and consisting essentially of (A) 0.45-12 mol. per cent of units of the formula <FORM:0998992/C3/1> wherein M is an ammonium ion, alkali metal or H atom, R is a divalent hydrocarbon radical selected from alkylene radicals of 2 to 30 C atoms, cycloalkylene radicals of 4 to 18 C atoms and aralkylene radicals of 7 to 18 C atoms, wherein the S atom is attached to a C atom in R which is at least the second C atom away from the Si atom, R1 is an alkyl radical of 1 to 4 C atoms, a is 1, 2 or 3, b is 0, 1 or 2 and the sum a+b is 1, 2 or 3, and (B) 88 to 99.55 mol. per cent of siloxane units of the formula <FORM:0998992/C3/2> wherein R11 is an alkyl radical of 1 to 4 C atoms and c is 1, 2 or 3 and in the polymer has an average value of from 1.75 to 2.1.  Solvents specified are alicyclic hydrocarbons, kerosene, mineral spirits, turpentine, benzene, toluene, methylchloroform, chlorobenzene, bromobenzene and dichlorodifluoromethane.  The sulphur-containing siloxanes are disclosed in Specification 998,993 and in U.S.A. Specification 2,968,643.  Examples 1 to 12 describe the preparation of the copolymers and Examples 13 and 14 describe the foaming effects of the copolymers.  Uses: As solvents in wax formulations.
Patent GB-1428136-A (GB)
Title: Testing of electrical component-board  units
IPC: H05K13/08
Filed: 1972-09-21
Abstract: 1428136 Test probes PLESSEY CO Ltd 19 Sept 1973 [21 Sept 1972] 43656/72 Heading H2E A jig for testing a circuit board 1 having a plurality of terminals 5 comprises a pivoted plate 11 on which is mounted a test board 16 having spring loaded test probes 17, the circuit board 1 being located in a recess 7 and the plate 11 is movable about arms 12, 13 so that the probes 17 engage the terminals 5, the final movement of the plate being substantially parallel to the circuit board. The jig can be locked in the engaged position by links 22, 23 and pins 24.
Patent GB-1522116-A (GB)
Title: Removal of dissolved antimony from liquids
IPC: B01J23/92
Filed: 1976-10-21
Abstract: 1522116 Recovery of antimony ROHM & HASS CO 21 Oct 1976 [21 Oct 1975] 43666/76 Heading C1A Dissolved antimony is removed from a liquid by contacting with a strong acid cation-exchange resin in the hydrogen form and/or strong base anion-exchange resin in the hydroxyl form. The antimony is preferably eluted from the resin and recovered from the eluate by precipitation and separation. When the exchange resin is a strong acid cation exchange resin, the eluant is preferably 10% sodium hydroxide, and the antimony is precipitated as antimony oxide by the addition of strong acid.
Patent GB-1105255-A (GB)
Title: Polycarbonates
Inventor: BAILEY JOHN VERNON
IPC: C08G64/08
Filed: 1965-10-18
Abstract: New polycarbonate/polyester copolymers of molecular weight at least 20,000 contain the residues of (a) a bisphenol of formula <FORM:1105255/C3/1> wherein R is a phenylene radical which may be halo- or alkyl-substituted and wherein X and Y are hydrogen atoms, hydrocarbon radicals free from aliphatic unsaturation or together form a cycloaliphatic ring, (b) carbonic acid and (c) a 2,5-dihaloterephthalic acid (wherein the halogen is chlorine or bromine) in an amount of 1 to 25 mol per cent based on (a).  The polymers are made by reacting the bisphenol or a sodium or potassium salt thereof, phosgene and a di-acid halide of the dicarboxylic acid (preferably by the interfacial process) or by reacting the bisphenol, a diester of carbonic acid (especially diphenyl carbonate) and a diester of a dicarboxylic acid. Chain-terminating agents, e.g. alkyl- or halo-phenols, may be included in the reaction mixture.  Block copolymers may be made by first reacting the polycarbonate-forming reactants to form a polymer and then adding the dicarboxylic acid reactant.  In examples the bisphenol used was bisphenol A and the chain-terminating agent was p-tert.-butyl phenol.  Uses.-Photographic film bases.
Patent GB-1096639-A (GB)
Title: Method and apparatus for applying vibratory energy
IPC: B21C1/00
Filed: 1966-10-04
Abstract: 1,096,639. Drawing. AEROPROJECTS Inc. Oct. 4, 1966 [Oct. 4, 1965], No. 44329/66, Heading B3P. Vibratory tube drawing apparatus comprises a die, a vibratory generator coupled to the die, means on one side of the die for pulling tubing axially therethrough, and a free-floating plug partly within the die orifice, the plug having a physical length corresponding to an acoustical length of an odd integral number of one quarter wavelengths of sound in the material of the plug at the generator frequency, the plug having one end in the die orifice and a second end thereof on the side of the die opposite the pulling means, the plug being acoustically non-compliant at the end in the die orifice. The apparatus may be a bench for drawing discrete tube lengths or a machine in which tubing from coils is pulled through a die by a drawing block. The die 12 is screwed into an acoustical coupler 40 connected to four transducers, of which three are shown, 50a, b and c, which are driven at 28 kc/s. The acoustical coupler 40 is carried by a force insensitive mount 52 comprising a sleeve of low hysteresis material which is one half wave-length long at the operating frequency. A flange 58 at the middle of the sleeve is clamped to a support 60. The plug 16 is made of an acoustically non- compliant material such as tungsten carbide and has a forming end 18 and a free end 20. The plug may be of one-piece or composite construction. In an example a plug of tungsten carbide, one quarter wavelength long was used to draw a copper tube À093 in. diameter, wall thickness À0062 in. at 75 ft./min., with a 40% cross-sectional area reduction.
Patent GB-1024610-A (GB)
Title: Assembly for the attachment of a covering sheet in spaced relation to a wall
IPC: F16B5/02
Filed: 1962-10-29
Abstract: 1,024,610. Wall linings. A. FISCHER. Oct. 29, 1962 [Dec. 1, 1961], No. 44806/65. Divided out of 1,023,665. Heading E1V. [Also in Division F2] A sheet 1 of material is held in spaced relation to a wall 6 between the head of a screw 3 (secured by a wall plug 5) and a nylon nut 10 threaded on a bush 9 which is in turn threaded on the screw adjacent the head and fitted in the bore 1a in the sheet 1. The screw may have a self-tapping thread like that of a woodscrew but of uniform diameter. A drill is used to drill both the holes in the wall 6 and in the sheet 1 and at the same time to countersink the latter hole to receive a countersunk head on the bush 9. The bush is then inserted and secured by the nut, the sheet spaced at the required distance and the screw inserted and driven home.
Patent GB-1383193-A (GB)
Title: Method of manufacturing -podocarpic acid derivatives from plus
IPC: C07C69/74
Filed: 1973-09-25
Abstract: 1383193 Podocarpic acid derivatives HARIMA KASEI KOGYO KK 25 Sept 1973 [14 March 1973] 44832/73 Heading C2C The invention comprises a method of synthesising (-)-podocarpic acid derivatives wherein (i) a (+)-dehydroabietic acid or derivative thereof is subjected to a retro Friedal Crafts reaction for rearrangement of the A/B ring from the # configuration to the α configuration, (ii) the resulting product is subjected to a catalytic isomerization to rearrange the product from the cisto the trans-form and to a substitution reaction whereby substituents are introduced into the C ring (iii), the resulting product is subjected to a Birch reduction to form a (-)- podocarpic acid derivative have an α # unsaturated carbonyl group on the C ring.
Patent GB-1431689-A (GB)
Title: Vehicle steering knuckle assembly
IPC: B60G7/00
Filed: 1973-09-26
Abstract: 1431689 Steering knuckles DAYTONWALTER CORP 26 Sept 1973 [13 Oct 1972] 45160/73 Heading B7H [Also in Division B3] A vehicle steering knuckle assembly comprises a cast ductile iron base member 12 having a projecting steering knuckle 16, an upper ball-joint opening 18 in the steering knuckle 16, a spindle opening 20 in the base member 12 having an axis disposed in angular intersecting relationship with the axis of the opening 18, a forged spindle member 14 with an integral lower knuckle 38 and a case-hardened ground and polished spindle 36 shrink-fitted into the opening 20. Formed integrally with the base member 12 are brake rails 22, 24 which are machined to final configuration, a steering arm 26 in which is drilled an opening 28, and bores 30 in which are drilled dust shield mounting holes. An upper ball-joint opening 52 aligned with the opening 18 is drilled in the knuckle 38. A tapped hole 34 is formed in the base member 12 for receiving a steering stop.
Patent GB-1206288-A (GB)
Title: Conductive footwear
Inventor: OGOSHI KOICHI
IPC: A43B7/36
Filed: 1967-10-04
Abstract: 1,206,288. Boots &c. K. OGOSHI. 4 Oct., 1967 [23 Dec., 1966], No. 45262/67. Heading A3B. A conductive shoe has a conductive outsole 1, an insulating insole 3 and a plurality of conducting members 2 extending through the insole 3. Each member 2 consists of a hollow or solid cylindrical part 2a, a flange f and a base plate b and may be made from metal e.g. aluminium. The electrical resistance of the shoe can be selected by the appropriate choice of materials for the outsole 1 and members 2, the number of members 2 and the area of the base plate b.
Patent GB-987440-A (GB)
Title: High molecular weight esters
IPC: C07C69/28
Filed: 1961-12-18
Abstract: A high molecular weight ester having at least 21 carbon atoms in its molecule is derived from a monocarboxylic acid and an aliphatic saturated polyhydric alcohol, the hydroxy groups of which are linked to an uninterrupted hydro-carbon chain, which alcohol has at least 12 carbon atoms in its molecule.  In examples of preparation of the esters (1) nonadecane diol and 2-ethyl-hexanoic acid are melted together and treated with dry hydrogen chloride at 200 DEG  C.; (2) a diol mixture is prepared by reacting oleic acid with carbon monoxide and hydrogen in the presence of a cobalt catalyst; the product is dissolved in methanol, mixed with urea and cooled, when solid impurities form and are removed; the purified diol is esterified with 2-ethyl-hexanoic acid, lauric acid, or 9,10-dimethyl-stearic acid; (3) the diol mixture obtained as in (2) is dissolved in methanol and cooled to deposit solid impurities before forming the ester; other suitable low boiling organic solvents are specified; (4) the diol mixture is heated with formic acid in the presence of hydrogen chloride to produce formic acid esters which are reacted with urea in methanol solution; the solid addition products are decomposed with dilute acid and the purified ester saponified and the diol mixture esterified with 2-ethyl-hexanoic acid; acetic acid may be used instead of formic acid.  The esters are useful as lubricants stable at high and low temperatures and also as plasticizers and rubber additives.
Patent GB-992104-A (GB)
Title: Hydrogenation process
IPC: C07C5/10
Filed: 1963-11-18
Abstract: Saturated hydrocarbons are produced by passing a stream of hydrogen serially through at least three catalytic hydrogenation zones, the effluent from each zone being introduced into the next succeeding zone and adding unsaturated hydrocarbon charge and a saturated hydrocarbon diluent e.g. saturated product to the feed to each reaction zone except the last two zones where only unsaturated hydrocarbon charge is added to the feed to the penultimate zone and only saturated hydrocarbon diluent is added to the feed to the final zone.  Hydrogen to charge mol. ratios of 6:1 to 15:1, temperatures of 100-500 DEG F. and liquid hourly space velocities of 0.5-5 are specified.  Catalysts specified are nickel, platinum, palladium, cobalt, iron and compounds and mixtures thereof which may be supported on carriers e.g. magnesia, zirconia, alumina, silica and Kieselguhr.  The hydrogenation of benzene to cyclohexane in four zones is described.  The hydrogenation of butene, butadiene, toluene, xylenes and naphthalene is referred to.