baber/WOPTO huggingface dataset:
Patent GB-1366848-A (GB)
Title: Rotary tools
IPC: B25B21/00
Filed: 1973-08-31
Abstract: 1366848 Screwdrivers WEBER SCHRAUBAUTOMATEN GmbH & CO KG 31 Aug 1973 [18 July 1973] 41075/73 Addition to 1363159 Heading B3N A rotary tool comprises a bit 7, a piston 8 movable in a pneumatic cylinder 9 and operative to move the bit longitudinally, and a pneumatic motor 13 mounted on the piston, the rear end portion of the motor being connected to the piston, the piston having a first seal 26 on its circumference, and an engagement profile, ribs 27, being provided along the length of a housing 16 of the motor, said profile cooperating with a complementary profile of a torsion prevention member 29 which is rigidly mounted. A guide ring 21 has a second seal 30 and is connected to the front end portion of the motor, member 29 is disposed between said first and second seals in every position of the motor.
Patent GB-1373702-A (GB)
Title: Hollow tubular draught excluder
IPC: E06B7/23
Filed: 1972-09-05
Abstract: 1373702 Extruded sealing strip SCHLEGEL MFG CO 5 Sept 1972 [26 Nov 1971] 41131/72 Heading B5A [Also in Division E1] A draught extruder strip of synthetic thermoplastic material comprises a hollow tubular portion 11 with internal longitudinal ridges 14 and grooves 15 and an external flange 12. The strip may be made from an extruded flat form bent to shape and flange parts 20, 21 are joined by cement, adhesive, fusion, bonding or mechanical means. Ridge 16, 17 is higher than ridges 14. The outer surface is embossed. The strip may be extruded in its final form (Fig. 3), and embossed by rollers.
Patent GB-1284458-A (GB)
Title: Process for the preparation of propylene oxide
IPC: C07D301/06
Filed: 1969-08-18
Abstract: 1284458 Oxidation catalysts MITSUBISHI CHEMICAL INDUSTRIES Ltd 18 Aug 1969 [23 Aug 1968 14 Sept 1968] 41172/69 Heading B1E [Also in Division C2] A catalyst composition for use in the liquid phase oxidation of propylene to propylene oxide comprises (a) elemental arsensic or a compound thereof and, optionally, (b) a polycyano compound having the skeleton wherein n is a positive integer. Suitable arsenic compounds are arsenic oxides, for example arsenic trioxide (i.e. arsenous acid) and arsenic pentoxide, inorganic arsenites, inorganic arsenates, arsines, for example triphenyl arsine and monobutoxyarsine, and arsenous acid esters, for example trimethylarsenite, tricyclohexylarsenite and triphenylarsenite; suitable polycyano compounds are 1,2,3,4-tetracyanobuta-1,3-diene and derivatives thereof, for example alkali metal salts, alkaline earth metal salts, noble metal salts, amine salts and phenyl derivatives, and tetracyanoquinodimethane, tetracyanoethylene and derivatives thereof. Exemplified compositions comprise tricyclohexylarsenite and tetracyanoethylene (Examples 5 and 10), tricyclohexylarsenite and the sodium salt of tetracyanobutadiene (Examples 6 and 9), arsenous acid and tetracyanoethylene (Example 7) and triphenylarsine and tetracyanoethylene (Example 8).
Patent GB-1131817-A (GB)
Title: Device for stepless variation of machine stroke length during operation
Inventor: LORINCZ GASPAR
IPC: F04B9/02
Filed: 1966-09-15
Abstract: 1,131,817. Linkwork. NIKEX NEHEZIPARI KULKERESKEDELMI VALLALAT. 15 Sept., 1966 [15 Sept., 1965], No. 41316/66. Heading F2K. [Also in Division F1]  A stepless stroke varying device for a concrete pump, sorter, conveyer or press comprises a slide block 3 pivoted on the reciprocating piston rod 2, a slide rod 5 slidable in block 3 and coupled at one end to a drive crank 11, and at the other end to an inner fork 6, which is pivoted in an outer fork 8 fixed to a carriage 13 The carriage 13 is moved up or down to vary the stroke by a remote-controlled electric motor 18 acting through a worm wheel 16 and screw spindle 15. Hand actuation may be provided by a crank (22), Fig. 4 (not shown), coupled to worm wheel 16. Limit switches may be used for cutting out the electric motor. In another embodiment, Fig. 4 (not shown), a pair of parallel rods (5) replaces rod 5.
Patent GB-1055648-A (GB)
Title: Improved adhesive composition
Inventor: PRESCOTT FRANCIS JOSEPH
IPC: C09J131/04
Filed: 1963-10-21
Abstract: Adhesive compositions comprise a copolymer of vinyl pyrrolidone and vinyl acetate and starch or a starch derivative in a weight ratio of 1:99 to 99:1 on a dry basis.  The composition may be in the form of a water-soluble dry-blended powder, or may be dissolved in an aqueous medium.  The copolymer preferably contains less than 80 weight per cent of vinyl pyrrolidone units, and the copolymer may comprise 1 to 99 weight per cent of the solids. Specified starch derivatives are corn, waxy maize and tapioca starch dextrins.  The compositions may also comprise plasticizers, e.g. polyethylene glycol, glycerol, phenol-ethylene oxide condensates and acetyl tributyl citrate; sodium tetraborate and mould growth inhibitors, e.g. sodium propionate and sorbic acid. Examples describe adhesive compositions comprising copolymers of vinyl pyrrolidone and vinyl acetate and (1) corn dextrin, (2, 4 and 5) corn dextrin and sodium tetraborate, and (3) tapioca dextrin.
Patent GB-1235320-A (GB)
Title: Moulding compositions containing vinyl chloride graft copolymers and process for their manufacture
IPC: C08F279/02
Filed: 1968-09-03
Abstract: 1,235,320. Vinyl chloride graft polymer compositions. FARBWERKE HOECHST A.G. 3 Sept., 1968 [2 Sept., 1967], No. 41852/68. Heading C3G. A transparent thermoplastic composition comprises (A) 5 to 70% by weight of a graft copolymer of vinyl chloride on 5 to 50%, calculated on the graft copolymer, of an elastomer having a particle size smaller than 0À4 micron and consisting of at most 90% of butadiene or a homologous conjugated diolefin and at least 10% of a comonomer, that is homopolymerizable to yield a homopolymer having a higher refractive index than polyvinyl chloride and improves the compatibility of the elastomer with vinyl chloride, or a plurality of comonomers, part of which is a comonomer that is homopolymerizable to yield a homopolymer having a higher refractive index than polyvinyl chloride while the other part is a comonomer that improves the compatibility of the elastomer with vinyl chloride and (B) 95 to 30% of a bulk or suspension polyvinyl chloride or a copolymer of vinyl chloride or a blend of such polymers. The composition is produced by preparing the elastomer by emulsion polymerization, introducing the resulting elastomer latex into a reaction zone in which vinyl chloride is being emulsion polymerized, the polymerization having reached an extent of 40 to 80%, continuing the polymerization of vinyl chloride until a conversion of at most 95% has been reached, and drying the resulting graft polymer to obtain a powder which is then mixed with the polyvinyl chloride or vinyl chloride copolymer. In one embodiment, the elastomer is prepared by copolymerizing the conjugated diolefin and the monomer which regulates the refractive index to 50 to 90% conversion and then adding the other comonomer and continuing polymerization, whereby the latter monomer is partially grafted to copolymer of the diene and former monomer. In Examples 1 to 4, a butadienestyrene-vinyl acetate elastomer is grafted with vinyl chloride and the resulting graft polymer is blended with polyvinyl chloride, a tin stabilizer and montan wax. Similar blends are prepared in Examples 5 to 16, except that the elastomer is prepared from (i) butadiene, chloroprene and, optionally, acrylonitrile or (ii) butadiene, styrene and acrylonitrile, methyl methacrylate, vinyl acetate, vinyl pyrrolidone, vinyl carbazol: or benzoic acid vinyl ester.
Patent GB-418721-A (GB)
Abstract: 418,721. Propelling aircraft. AKTIEBOLAGET MILO, 32, Kungsgatan, Stockholm. Feb. 14, 1934, No. 4952. Convention date, Feb. 15, 1933. [Class 4.] An aeroplane is driven by gas turbines, the exhaust from which is discharged at high velocity to aid propulsion, the passage area of the driving medium increasing through the turbine and diminishing towards the outlet. Two turbines 10 are shown mounted on shafts carrying air compressors 8 to which air enters at forward openings 7 and is discharged into combustion chambers 9 where it is mixed with fuel and ignited before entering the turbine. The exhaust gases discharge through convergent passages 11 and propel the craft alone or in conjunction with tractor propellers mounted on the turbine shafts. A radial flow turbine may be used instead of or in front of an axial flow turbine, the radial discharge in the former case being deflected rearwardly through a passage restricted by tapering.
Patent GB-1185288-A (GB)
Title: Apparatus for Locating and Tracing Electrically Conductive Structures
Inventor: HUMPHREYS THOMAS G
IPC: G01V3/15
Filed: 1968-09-06
Abstract: 1,185,288. Inductive signalling. UTILITY TOOL CO. 6 Sept., 1968, No. 42622/68. Heading H4U. In an apparatus for locating a conductive body, e.g. a buried pipe, in which a radiofrequency signal is coupled into the conductive body so that it radiates a signal which is received by a radio receiver via a pick-up coil, the receiver includes an audio oscillator which provides an output signal varying in frequency in accordance with the receiver signal strength and producing an audible signal having a frequency proportional to the distance between the conductive body and the pick-up coil of the receiver. The pick-up coil 11, has a ferrite core, is tuned to the incoming signal by a capacitor 11 and supplies a transistor amplifier 12 provided with a gain control 28. A diode 13 reduces coupling through the common power supply to prevent self-oscillation in the amplifier. The output of the amplifier is rectified by the base circuit of a normally cut-off transistor 14 which acts as a switch and variable resistance to activate a multivibrator 16 and control its output frequency. By this means a high audiofrequency signal is produced when the received signal strength is sufficient to switch on transistor 14 and this frequency is reduced as the signal strength increases as the detector nears the conductive body. The output of multivibrator 16 is amplified at 17 and produces an audible signal in loudspeaker 18.
Patent GB-1477913-A (GB)
Title: Spirometer
IPC: A61B5/093
Filed: 1974-10-03
Abstract: 1477913 Spirometers SEARLE CARDIOPULMONARY SYSTEMS INC 3 Oct 1974 [4 Oct 1973] 42894/74 Heading A5K A spirometer comprises a frame cabinet 21 with side walls 22, 23, a plastics deformable bag 9 for receiving exhaled air through an inlet 8 in wall 22 via a check valve 7 and a hinged primary plate 24 attached to the bag and which it must lift on filling, discharge being by a secondary motor-driven plate 27 through a depending portion 10 of the bag to a part cut-away tube 11, this outlet being opened and closed by the pinching action of a valve plate 51. The bag is initially collapsed under the force of gravity of plate 24 which is connected by a flexible wire 34 and pulley 37 to an electrical transducer 31 so that its position and hence the bag's volumetric content can be indicated on a meter 41 and by the strength of a glowing light 43. When exhaled air enters from inlet- 8 the bag fills and plate 24 is raised, during which, the valve plate 51, worked by a solenoid 52, counter spring 53 and bell crank 54, is pushed against the bag thereby closing the outlet. The motor 64 then simultaneously pushes on secondary plate 27 to collapse the bag by use of a pitman 69 and bracket 72 and switches a microswitch 74 in circuit with the solenoid 52 to move the valve plate 51 and open the outlet. The movement of the motor is synchronized to the patients breathing either by manual operation of switch 76 or by the operation of a respirator exhalation valve 78.
Patent GB-1400811-A (GB)
Title: Continuous casting method
IPC: C21D1/00
Filed: 1972-09-15
Abstract: 1400811 Continuous casting I ROSSI 15 Sept 1972 [18 Nov 1971] 42949/72 Heading B3F [Also in Division B8] To reinforce the shell 34 of a cast strand 24, descending from a tubular mould, against the pressure of the molten core 36, sides 46 of the strand are shaped to have concavities and are sprayed with coolant to establish, in the shell walls, thermal stresses which maintain the concave form against the core pressure. The initial hollow-faced form of the walls may be imparted by the complementary shape of shaping-rolls (at the exit of a copper-lined upright mould). A double-arched form, Fig. 10, may be produced by such rolls 50, with the concavity formed between the arches. Alternatively, the mould walls may impart the shape. Edge rolls 26, Fig. 9, on axles 38, guide the cast strand 34, as it curves down to the horizontal, by contacting edges of chamfer form. Grooved rolls are used at each corner of a billet with equal, incurved sides, but conventional uniform rolls may be used if there are coplanar margins at each side of a strand wall. By controlling the cooling, the sunken walls may be allowed to bulge to a flat condition such that the strand will be ready for rolling.
Patent GB-1061138-A (GB)
Title: Improvements in armored vehicles including a turret fitted with an automatic gun fed from cartridge belt sections packed in boxes
IPC: F41A9/80
Filed: 1965-10-11
Abstract: 1,061,138. Armoured vehicles with an automatic gun. BREVETS AERO-MECANIQUES S.A. Oct. 11, 1965 [Nov. 7, 1964], No. 42988/65. Heading F3C. An armoured vehicle is provided with a rotatable turret 2 mounted on a roller track 3 and fitted with an automatic gun 4. The automatic gun is fed through a feed mechanism 5 with belted ammunition stored in an ammunition box 8 1 . The ammunition box 8 1 , is housed in a guide 9, rotatable with the turret and able to house at least one other ammunition box 8 2 , the last-mentioned ammunition box being held out of engagement with the first mentioned by means of a manually actuatable pawl (Fig. 3, not shown). The first mentioned box 8 1 , is held in the firing position also by a spring loaded pawl and also, in the heightwise sense by pivoting spring loaded rail sections 14b (Fig. 5, not shown) which in their locked holding positions co-operate with flanges attached to the sides of the ammunition box. When the ammunition box 8 1  is empty the rail sections 14b are freed by manually actuating a lever which operates a spring loaded locking bar co-operating with each rail section, and the ammunition box 81, is fed, by gravity into an open-sided lower compartment 9a of the guide 9. The pawl cooperating with the ammunition box 8 2  in the waiting position is then actuated and the box allowed to slide into the firing position, the belted ammunition in box 8 2  having been joined to the end of the belt of the ammunition in box 8 1 .
Patent GB-991328-A (GB)
Title: Improvements in safe-load indicators for cranes or the like
IPC: B66C23/90
Filed: 1962-11-14
Abstract: 991,328. Safe load indicating devices for Jib-cranes. R. L. AITKEN. Nov. 4, 1963 [Nov. 14, 1962], No. 43139/62. Heading B8B. In a safe load indicating device 12, Fig. 1, as described in Specifications 723,070 and 852,082, a cam is turned to compensate for angular movements of the jib by a cable 15 which is anchored at 16 to a sector-shaped member 10 and passes round a pulley 13 fixed to a camsupporting shaft 14. The member 10 rotates with a shaft 11 in the crane A frame when the jib is luffed. The cable 15 may be replaced by a sheathed cable, one end of the inner cable being fixed to the point 16 and the other end to a clock-spring tensioner on a frame 18. Fig. 4 shows an embodiment using an external cam and follower 38, 37 and pulleys 20, 13. The latter may be replaced by sprockets between which a chain passes. Fig. 5 shows an arrangement with two safe load indicators 12, 12a interconnected by a cable 43. In Fig. 6 a disc 60 and cable 65 move a cam 64 against.a spring 69 to effect movement, of a cam follower 68 which rotates a further cam within the device 12. Alternatively, the surface of the cam 64 may be profiled so that the internal cam may be eliminated.
Patent GB-906200-A (GB)
Title: Improvements in or relating to garbage disposal means
IPC: B65F3/22
Filed: 1960-12-19
Abstract: 906,200. Feeding material into chambers on vehicles. KELLER & KNAPPICH G.m.b.H. Dec. 19, 1960 [Sept. 7, 1960], No. 43537/60. Class 78 (4). Material is fed into the rotating body 1 (Fig. 1) of a vehicle by driving ribs 12 which push the material along the inner surface of a helical baffle 8 mounted on a truncated cone 7 projecting into the body 1. The helical baffle 8 extends from the zenith S of the cone 7 to a point E (Fig. 2) sufficiently far round the cone to cut off a charging aperture 10 at the bottom of the cone 7 from the interior of the body. The driving ribs 12 are preferably of helical form, to assist in feeding the material, and conveying helices 13, which may be fewer in number than the ribs 12, are preferably mounted on the interior of the body. The cone 7 and baffle 8 may be carried by a tail gate 5 hinged at 6. The body 1 may be mounted for tipping and may be constructed as a semi-trailer. The outer radius of the baffle 8 is such as to leave a constant clearance from the driving ribs 12, which may be mounted on an outwardly flared portion of the body 1 serving to provide a lower charging  height.
Patent GB-943874-A (GB)
Title: Photographic silver halide stripping film for producing etching resists in photogravure
IPC: G03C1/805
Filed: 1960-12-19
Abstract: 943,874. Silver halide stripping film for photogravure process. KODAK Ltd. Dec. 19, 1960 [Dec. 18,1959], No. 43626/60. Headings G2C and G2M. A photographic stripping film comprises a dimensionally stable subbed temporary film support bearing in succession a stripping layer consisting of gelatin and a surfactant-containing (C 1  to C 4 )-alcyl acrylate-acrylonitrile copolymer latex in which the alkyl acrylate units comprise 60 to 90% by weight of the total polymer, an antihalation layer, and a hardener-free light-sensitive gelatino-silver halide emulsion. Typically a polystyrene or cellulose acetate or acetate butyrate base subbed with cellulose nitrate is coated with a stripping layer comprising by weight 13 parts of gelatin and 87 parts of ethyl acrylate-acrylonitrile copolymer composed of 60 to 90% ethyl acrylate and an anionic wetting agent, a Carey-Lea or manganese dioxide or dye-containing gelatin antihalation layer plasticized with glycerin and a hardener-free silver chloride, bromide iodide or chlorobromide or bromoiodide gelatin emulsion. After exposure, developing with a pyrogallol tanning developer, treating successively with acidified sodium phosphate and sodium acetate solutions, fixing, washing, and treating with a solution of semicarbamide hydrochloride containing a non-ionic wetting agent and ammonium hydroxide,the film is rolled emulsion side down on to a copper cylinder or plate, wetted, the support is stripped off, the unhardened gelatin is removed with hot water, and, after drying of the resist so formed the copper is etched to give a gravure printing surface.
Patent GB-1259826-A (GB)
Title: A method of and apparatus for the decarbonization of carbonaceous shales for the manufacture of expanded aggregates
IPC: C04B20/06
Filed: 1969-09-05
Abstract: 1,259,826. Shaft furnaces. CHARBONNAGES DE FRANCE and HOUILLERES DU BASSIN DU NORD ET DU PAS-DECALAIS. 5 Sept., 1969 [6 Sept., 1968], No. 44169/69. Heading F4B. [Also in Division C1] An apparatus for the decarbonization of carbonaceous shales (Division C1) comprises a vertical furnace provided on its lateral walls with external casings 5 for the circulation of gases which casings are separated from each other by horizontal partitions 6 and communicate with the central chamber through elongate horizontal openings 3.
Patent GB-1419876-A (GB)
Title: Method and apparatus for determining play between components
IPC: G01B7/14
Filed: 1973-09-24
Abstract: 1419876 Gauging play between parts DAIMLER-BENZ AG 24 Sept 1973 [27 Sept 1972] 44597/73 Headings G1M and G1N An engine 14, Fig. 1, having rocker arms 17 and a cam-shaft 29 has the play between the arm shown and the valve stem 28 measured by means of a gauge comprising a housing 10 rested on the engine and an electromagnet 16 for each rocker which is excited cyclically by current pulses from a transmitter 19 so that the respective rocker 17 is moved to and fro between its two limit positions in the same cycle. A sensor 18 is connected through a measured value inductive transducer 20 and an amplifier 21 to a memory device 22 which is itself connected through a measured value comparator 23 or threshold value switch to an indicator 24 housing three coloured lamps 25, 26, 27. The position of the sensor 18 is ascertained by the transducer 20 precisely at the limit positions of the rocker 17 by controlling the amplifier 21 simultaneously with the transmitter 19.
Patent GB-1223289-A (GB)
Title: Polyvinyl chloride foams
IPC: C08J9/14
Filed: 1968-09-19
Abstract: 1,223,289. Expanded products. E. I. DU PONT DE NEMOURS & CO. 19 Sept., 1968 [22 Sept., 1967], No. 44662/68. Heading B5A. [Also in Division C3] A foam of film-forming polyvinylchloride is made by (A) providing a solution of polyvinylchloride in a solvent whose b.p., at the pressure of the region of lower pressure in step (B) of the process, is below 100 C., which solution is at a temperature above the b.p. and under pressure sufficient to prevent vaporization of the solvent, and in which solution the concentration of polyvinylchloride is such that (a) the solution is single phase and flowable and (b) the heat absorbed on adiabetic vaporization of all the solvent present will reduce the temperature of the product to a value between the temperature at which the polymer ceases to be flowable and the b.p. of the solvent; and (B) extruding the solution through an orifice into a region at lower pressure so that flash vaporization of all the solvent occurs to produce a foam retaining no residual liquid. In the examples the solvent is a mixture of methylene chloride (blowing agent) and fluoro-trichloromethane (impermeant inflatant) containing silica aerogel and n-butanol. The foam may be inflated by immersion in a refluxing bath of fluorodichloromethane (plasticizer) and perfluorocyclobutane (impermeant inflatant). The extruded foam may be moulded in a heated mould, and the product may incorporate expanded metal plates or surfacing sheets located in the mould.
Patent GB-1389777-A (GB)
Title: Motor driven hoist device for simultaneous lifting a hoist cage gate and a stopping level gate
IPC: B66B13/06
Filed: 1973-09-25
Abstract: 1389777 Hoist cage gate operation LINDENALIMAK AB 25 Sept 1973 [25 Sept 1972] 44866/73 Heading B8L The gate 23 at a hoist stopping level is automatically coupled for opening, to lifting apparatus for the gate 1 on the hoist cage, when the hoist cage gate 1 is lifted for opening adjacent the stopping level gate 23. The cage gate 1 is lifted and lowered by a motor 3 on the cage roof, coupled to the gate 1 through a rack and pinion drive 4, 5, rod 6 and pivoted linkage 7. The lower pivoted levers 13, 14 of the linkage 7 include jaws 18, 19 which project laterally to receive therebetween, a rail 22 secured to the gate 23. Upon lifting of the rod 6, the pivoted levers 9, 10, 13, 14 rotate causing the jaws 18, 19 to grip the rail 22 preventing further rotation whereupon the two gates are lifted with further upward movement of the rod 6. Tappets 25 and 28 on the rod 6 engage limit switches 27 and 30 for the motor 3 to control the range of movement of the gates. In a further embodiment the linkage 7 is operated by a driven wire and a spring is used to bias the jaws into the released position.