baber/WOPTO huggingface dataset:
Patent GB-285797-A (GB)
Title: A process for producing a liquid insecticide containing effective ingredient of derris species
IPC: A01N65/00
Filed: 1928-02-20
Abstract: 285,797. Zaidan Hojin Rikagaku Kenkyujo. Feb. 18, 1927, [Convention date]. Insecticides are prepared by mixing an extract of derris root with an anhydrous and alkali-free vehicle consisting of one or more oils, fats, waxes, resins, higher alcohols, higher hydrocarbons, or higher fatty acids, together with an anhydrous solvent such as benzol, carbon tetrachloride, or trichlor-ethane. The primary material so prepared is mixed, when required for use, with an aqueous soap solution so as to form an emulsion or colloidal solution. According to examples derris root is extracted with ether or benzol, the solvent recovered from the extract by evaporation. and the active substance so obtained is dissolved in mixture of fish oil and benzol or carbon tetrachloride so as to form the primary material as a liquid, to which anhydrous gum arabic may be added if a material in the form of powder is required. Specifications 239,483 and 280,256 are referred to.
Patent GB-711280-A (GB)
Title: Elastic linear copolyesters and process of making them
IPC: C08G63/66
Filed: 1951-03-06
Abstract: Elastic polyesters are made by blending a co-polyester of a glycol and an acyclic dicarboxylic acid and an aromatic dicarboxylic acid as described in Specification 711,279 but with 30-50 per cent. by weight of the acid component as aromatic acid, with a linear polyester prepared by melt polymerization of at least one polymethylene glycol having 2-6 carbon atoms with terephthalic, bibenzoic, ethylene-bis-p-oxybenzoic, tetramethylene bis-p-oxybenzoic or 2, 6-naphthalic acid.  The blend contains 40-60 per cent. by weight of its acid component as aromatic acid.  Lists of acyclic dicarboxylic acids are given. More than one such acid and more than one of the aromatic acids may be employed.  Preferably the blended polymer has an intrinsic viscosity of 0.7-1.5.  The two polymers may be blended immediately after being prepared or may be cast as chips which are then melted together in the desired proportions.  Blending should proceed for about 10-30 minutes to avoid excessive ester interchange. Inhibitors or stablizers, e.g. phenyl stearate or triphenyl phosphite may be added to each component of the blend.  Yarns extruded from the blend are at first tacky but may be drawn or heat-treated to remove tackiness and improve elasticity. Preferably yarns are drawn, relaxed and wound under a reduced tension.  The packaged yarn may be aged by heating.  Films may be similarly treated.  Shrink tendency may be reduced by heat-treatment of yarns, films or fabrics, e.g. at 100-150 DEG C. with or without steam for 15-45 minutes.  In examples (1) a copolymer from ethylene glycol, terephthalic acid and sebacic acid is blended with an equal weight of a poly-ethylene glycol terephthalate. The blend is spun to filaments which are drawn 400 per cent., relaxed 200 per cent. and heat-set in steam (110 DEG C.) for half-hour.  (2) The copolyester is prepared from trimethylene glycol, suberic acid and terephthalic acid and the aromatic polyester from ethylene glycol and terephthalic acid.  (3) The components of the copolyester are ethylene glycol, sebacic acid, azelaic acid and terephthalic acid and the polyester in polyethylene terephthalate.  (4) The copolyester components are ethylene glycol, terephthalic acid and 5, 8, -dioxo-12-dodecanedioic acid and it is blended with polyethylene terephthalate.  (5) Ethylene glycol, terephthalic acid and oxydivaleric acid are used for the copolyester which is blended with polyethylene terephthalate.  (6) Ethylene glycol, tetramethylene -bisp-oxybenzoic acid, and sebacic acid are used for the copolyester which is blended with a polyester from ethylene glycol and tetramethylene -bis-p-oxy-benzoic acid.  A list of fabrics and garments which normally employ rubber yarn and which may be made with the yarns of this invention is given.  The blends may also be used for adherent elastic coatings for fabrics or films, as heat shrinkable bottle closures, safety-glass inteliners, or flexible tubings or coatings for wire. Specification 610,140 also is referred to.
Patent GB-103227-A (GB)
Title: Improvements in Portable Military Telephones.
Inventor: DUNGEY JOHN WILLIAM
IPC: H04M1/18
Filed: 1916-04-13
Abstract: 103,227. Dungey, J. W., and Kersting, C. B. April 13, 1916. Microphones; direct - call systems and apparatus. - The transmitter of a portable system is provided with a ringing-key and a speaking key; while the transmitter, receiver, and the battery and buzzer coil are placed in the separate compartments of a box. In the arrangement shown in Fig. 4, the transmitter 1 is provided with a ringing or signalling key RK and a speaking key SK, the movable contacts 1, 3 of which are connected to the contact B of a battery B<2> by a lead 7. The fixed contact 4 of the key RK is connected to the pole C of the battery B<2> through a lead 9, contacts VC, A of the vibratory interrupter, and the primary winding P of the buzzer coil. The fixed contact 2 of the key SK is connected through the transmitter T, lead 8, and primary winding P to the pole C of the battery B<2>. The receiver R is connected in series with the secondary winding S across the line terminals L', L<2>. The receiver R, transmitter T, and the battery B<2> and buzzer coil I'B are placed in the compartments X, Y, Z of a box, as shown in Fig. 1, the compartment Z being removable.
Patent GB-566241-A (GB)
Title: Primary electrical batteries
IPC: H01M2/02
Filed: 1943-04-06
Abstract: 566,241. Batteries. WARNE J., and GARSIDE, F. April 6 1943, No. 5455. [Class 53] A battery, for use with the torch described in Specification 566,242, [Group XI], has an orifice D in the cylindrical wall of the casing A to enable the switch of the torch tc engage the cell B. The end of the casing is rolled over to keep the cell in position.
Patent GB-985760-A (GB)
Title: Improvements in or relating to connectors for conveyor belts
IPC: F16G3/02
Filed: 1963-02-11
Abstract: 985,760. Belt fastenings. C. MATTHAEI, and C. MATTHAEI, Jun. Feb. 11, 1963 [March 3, 1962], No. 5458/63. Heading F2Q. In a conveyer belt fastener, each of hinged U-shaped plate elements 1 having limbs 2, 3 is secured to the relevant belt end by staples arranged parallel or transverse to the belt end edge, or circular or, as shown, rectangular cross-section rivets 5 which initially are held captive, by pressing, spot welding or adhesive, in one limb 1, and, for securing the element, are movable relative to the limb 1, through the belt, and into anchoring engagement with the oppositely disposed limb 2 which is provided with a channel 9 in which the rivet point is seated. A plurality of elements 1 may be united on a wire as by welding. As shown, each limb 2, 3 initially has an outward bulge 10 between adjoining rivets and extending parallel to the belt end edge. Firstly, each element 1 is pushed over the belt end; secondly, the limbs 2, 3 are pressed together by suitable pressing members; thirdly, while maintaining pressure on the limbs the rivets are driven through by separate plungers in one of the pressing members; and finally, to pre-stress the rivets the bulges are pressed flat by flat-ended pressing members which are arranged adjacent those aforementioned and may anchor the rivets by distortion of their ends. Alternatively, the rivet ends may be anchored by bending over in a subsequent separate operation. In Figs. 6-8 (not shown), the bulges 10 are dispensed with and the limbs and rivets are pressed simultaneously.
Patent GB-728540-A (GB)
Title: Improvements relating to coin holders of prepayment mechanisms
Inventor: BUTTERWORTH EDWARD
IPC: G07F15/02
Filed: 1953-02-27
Abstract: 728,540. Coin-freed prepayment mechanisms. BEGWACO METERS, Ltd. Jan. 14, 1954 [Feb. 27, 1953], No. 5504/53. Class 27. In a bi-coin prepayment mechanism having a coin holder with a single coin insertion slot, a single striker lever i engages a single quantity wheel o at different angularly-spaced points according to the value of the coin inserted. A larger coin bears on the face f of a spring-loaded slide a and moves it along pins c so that a pin g acting on a cam surface h pivots the spring-loaded striker lever i about a fixed fulcrum k and engages a tooth n with the quantity wheel o, which can then be turned to its fullest extent by means of a handle r on the coin holder. A smaller coin e moves the slide a only sufficiently to move the lever i to the left by the distance allowed by the slot into which the fixed fulcrum k projects, so that a flange s on the lever can engage a stationary face cam or ramp p and the lever is pivoted to engage the quantity wheel when the holder is rotated to a point where the flange s rides up on the ramp p. If there is no coin in the holder, the lever is clear of the ramp and the quantity wheel is not affected by turning of the coin holder. Angular adjustment of the complete holder in the front plate of the meter varies the distances between the coin slot and the coin ejection slot, thus varying the quantity delivered for each larger coin and adjustment of the ramp p on the holder varies the point at which a smaller coin causes engagement of the striker lever and the quantity wheel.
Patent GB-108829-A (GB)
Title: A New or Improved Tooth Brush.
Inventor: HICKMAN JOHN
IPC: A46B9/04
Filed: 1917-04-20
Abstract: 108,829. Hickman, J. April 20, 1917. Toothbrushes; rotary brushes. - The operative end of a toothbrush handle is bifurcated and adapted to carry a pair of spaced disks 7, 8 provided with bristles 9, the disk 8 being free to rotate whereby, when the brush is moved along the teeth, the disks automatically approach or recede from each other according to the direction of movement of the whole brush. The bristles are preferably arranged as a number of triangular tufts and the disk 8 mounted on the screwed end of the fixed spindle 11 on which the disk 7 is secured.
Patent GB-452441-A (GB)
Title: Process for the manufacture of new high molecular products containing sulphur
IPC: C08G75/16
Filed: 1935-02-21
Abstract: High-molecular organic sulphur compounds resembling rubber and capable of vulcanization are obtained by reacting aromatic compounds containing --CHCl2 or --CCl3 groups or at least two --CH2Cl groups with alkali or alkaline earth metal or ammonium polysulphides. Aromatic compounds mentioned are benzal chloride, benzotrichloride, o- and p-di(chloromethyl)benzenes, 3 : 5-di(chloromethyl)toluene and p : p<1>-di(chloromethyl) diphenyl; the aromatic nuclei may also contain aralkyl, halogen or nitro groups.  The reaction may be effected in a diluent; when water is used, an emulsifying agent is preferably added to give a latex-like product which can be worked up like natural rubber.  The plastic products may be used for the preparation of moulded articles which are resistant to acids and other chemicals, or they can be dissolved in aromatic hydrocarbons to form lacquers.  Examples are given of the treatment of (1) benzal chloride, benzotrichloride and o-xylylene dichloride respectively with sodium polysulphide, prepared by melting crystallized sodium sulphide with sulphur, in the presence of water; (2) sodium polysulphide with benzal chloride and benzotrichloride in water to which a little sodium di-isopropylnaphthalene sulphonate and glue have been added.  An example is also given of the vulcanization of a mixture of cr<\>zepe rubber and a benzotrichloridesodium polysulphide condensation product by heat treatment after addition of zinc oxide, carbon black, stearic acid, sulphur and mercaptobenzothiazole; the cr<\>zepe rubber may be replaced by a mixed polymerisate of butadiene and acrylic acid nitrile. Reference is made to a lacquer comprising a benzal chloride-sodium polysulphide condensation product, chlorinated rubber, chlorinated diphenyl, and xylene.ALSO:High-molecular organic sulphur compounds resembling rubber and capable of vulcanization are obtained by reacting aromatic compounds containing -CHCl2 or -CCl3 groups or at least two -CH2Cl groups with alkali or alkaline earth metal or ammonium polysulphides.  Aromatic compounds mentioned are benzal chloride, benzotrichloride, o- and p-di (chloromethyl)benzenes, 3 : 5-di (chloromethyl) toluene and p : p1 - di(chloromethyl)diphenyl.  An example is given of the vulcanization of a mixture of cr<\>zepe rubber and a benzotrichloride-sodium polysulphide condensation product by heat treatment after addition of zinc oxide, carbon black, stearic acid, sulphur and mercaptobenzothiazole; the cr<\>zepe rubber may be replaced by a mixed polymerizate of butadiene and acrylic acid nitrile.
Patent GB-694482-A (GB)
Title: Improvements in or relating to cricket pitches
IPC: A63C19/04
Filed: 1949-03-02
Abstract: 694,482. Roads and ways; slabs. SPARKES, R. G. March 2, 1950 [March 2, 1949], No. 5652/49. Classes 87(i) and 107 [Also in Group XV] A pre-cast concrete section 1 has apertures 9 extending through opposite ends which are formed with central recesses 7, 8 to receive dowels 15 after the sections are laid. The sections are reinforced and may be cast in three-eighths of an inch aggregate, the upper surface of each layer being preferably provided with a trowelled granolithic layer.
Patent GB-623441-A (GB)
Title: Improvements in or relating to circuits for the production of oscillations of sawtooth or triangular wave-form
IPC: H03K4/14
Filed: 1947-02-27
Abstract: 623,441. Sawtooth generating circuits. PHILIPS LAMPS, Ltd. Feb. 27, 1947, No. 5693. Convention date, April 20, 1944. [Class 40 (vi)] In a circuit for producing a substantially triangular wave across a capacitor 7, the capacitor is connected between the anodes of two pentode valves 1 and 3, which have inductive anode loads and are arranged to be alternately blocked by crossconnecting their screen and control grids in a multivibrator circuit. Alternatively, the valves may be alternately blocked by a square wave from a separate source, or by a sine wave, squared by providing series grid resistors and driving the valves into grid current.
Patent GB-556483-A (GB)
Title: Improvements in and relating to the roofs of motor cars and like vehicles
IPC: B60J7/053
Filed: 1942-04-28
Abstract: 556,483. Vehicle 'opening tops. BURNHAM, R. April 28, 1942, Nos. 5700/42 and 4826/43. [Class 108 (i)] A vehicle roof has a section extending inwardly from a doorway and moved by opening of the door to provide an aperture in the roof to facilitate exit or entry of the passengers. Transversely-sliding sections 5, 6 are moved towards the vehicle centre to provide apertures in the roof by levers 15 pivoted to the doors so that when these are opened bars 17 are drawn outwardly to operate the sections 5, 6 by cables 20 passing under the floor and up the opposite side of the vehicle to plates 21 connected to the sides of sections 5, 6; cables 22 are provided for returning the sections as the doors are closed; in modifications the cables are arranged at the same side as the associated doors, or links and levers are used. In order that the doors may at will be opened and closed without moving the roof, sections 5 6, these are connected to the plates 21 by locking bolts that can be withdrawn by handles 28.
Patent GB-569723-A (GB)
Title: Means for lengthening or shortening an element such as a table leg
IPC: A47B91/02
Filed: 1943-04-09
Abstract: 569,723. Door stops. DEAL SLIDE-LOCK DEVICES, Inc. April 9, 1943, No. 5741. Convention date, March 18, 1942. [Class 65 (i)] [Also in Groups XIV, XXX, and XXXII] Shortening or lengthening a support &c., or an equivalent adjustment as described in Specification 452,626 can be applied to a table leg, a door bolt, transom, window, chair, emergency brake for a car, &c., a microphone stand, photography screen, lamp tripod, car jack, &c., in which a pair of co-operating wedges 7, 8 slidable in a guide 2 is fixed on the table leg, the wedge 8 can be pulled out to form an extension of the table leg, the top wedge following it down by the pull of a spring connection 12 so that when weight is applied to the table the wedges in forcing themselves apart bind frictionally against the flanges 6 of the guide 2 and so prevent movement, the sloping faces of the wedges being prevented from binding frictionially by the interposition of a flexible strip wire or cable 11. To shorten the effective length of the table leg the upper wedge 7 requires to be moved up first, with 8 following it, this operation being more conveniently carried out by a knob 19 on a sliding plate 18 with a top and bottom slot 20 holding a screw 21 fitting into each wedge, so that up or down movement of the knob first forces the top or bottom wedge respectively from the other and then moves both wedges up or down together. Fig 8 is a bolt or latch for a door.
Patent GB-1219363-A (GB)
Title: Improvements in or relating to the control and extinction of fires
Inventor: RASBASH DAVID JACOB
IPC: A62C3/02
Filed: 1968-02-06
Abstract: 1,219,363. Producing foam. MINISTRY OF TECHNOLOGY. 27 Feb., 1969 [Feb., 1968], No. 5790/68. Addition to 1,062,771. Heading B1C. Foam for fire fighting purposes is produced by cooling exhaust gases from a gas turbine engine 11, causing the cooled exhaust gases to entrain air at ambient temperature by passing the gases through a duct 15 having a throat 16, and passing the resulting gas mixture through a perforate screen 22 which is wetted with an aqueous foam producing solution, the velocity of the gas mixture when passed through the screen not exceeding 10 ft. per second. The exhaust gases may be cooled by spraying water into duct 14. The foam producing solution may contain ammonium lauryl sulphate, sodium lauryl polyethylene glycol ether sulphate and/or ammonium lauryl polyethylene glycol ether sulphate with or without a foam stabiliser e.g. hydroxymethyl cellulose, or a fatty alcohol.
Patent GB-657102-A (GB)
Title: Improvements in or relating to apparatus for producing stereoscopic pictures
IPC: G03B15/08
Filed: 1948-02-26
Abstract: 657,102. Stereoscopic pictures. SPERRY CORPORATION. Feb. 26, 1948, No. 5806. Convention date, June 29, 1945. [Class 11] An apparatus for producing stereoscopic pairs or set of views comprises means for holding a sheet of material such as paper having a pictorial representation as viewed from a first point, and means for holding a second sheet of material underneath the first sheet and altering its position by amounts corresponding to the different depths of the objects of the pictorial representation as viewed from a second point, each object being copied from the master sheet onto the second sheet as by an interposed carbon, when the apparatus has been set so that the relative displacement of the sheets corresponds to the depth of the object. A drawing board 2 has mounted on it a transverse slide bar 4 urged to the left by a spring and carrying a cam strip 16 whose cam surface is held against a cam follower 18 mounted on a fixed slide strip 20 and having attached to it a transparent guide bar 24 beneath which is attached to the drawing board a depth guide sheet 30. The picture 32 as viewed from the first point is tacked at 34 to the drawing board and beneath it carbon sheet 36 and a sheet 38 attached to the bar 4 by tacks 40 so that when the cam follower is moved the sheet 38 is also moved. The cam 16 may be replaced by a spiral graduated cam or if three or more views are required to form a stereoscopic set three concentric spiral cam surfaces are used respectively resting against three separate slide bars.
Patent GB-1488096-A (GB)
Title: Process for the preparation of carbodiimide-isocyanurate foams
IPC: C08G18/02
Filed: 1975-02-11
Abstract: 1488096 Foamed carbodiimide and isocyanurate polymers BASF WYANDOTTE CORP 11 Feb 1975 [25 Feb 1974] 5807/75 Headings C3C C3R and C3P Foamed polymers containing carbodiimide and isocyanurate linkages are made by mixing an organic polyisocyanate at an initiating temperature with a catalytic amount of a catalyst comprising a tertiary amine trimerization catalyst and an amino alcohol of molecular wt. 98-300 and which contains 1-3 tertiary amino groups wherein each N atom is linked to at least one #-hydroxy-C 1-4  alkyl group. The condensation may be carried out in the presence of a polyol and also a fluorocarbon blowing agent. In the examples mixtures of 2,4- and 2,6-tolylene diisocyanate and/or a polymethylene polyphenylisocyanate were foamed in the presence as catalyst of 1,3,5-tris- (N,N - dimethylaminopropyl) - 8 - hexahydrotriazine or 2,4,6 - tris - (dimethylaminomethyl)- phenol with 1,3,5 - tris - (2 - hydroxyethyl) - shexahydrotriazine, triethanolamine, N - (2- hydroxyethyl)morpholine, N - (2 - hydroxyethyl)piperidine, N,N,N<SP>1</SP>,N<SP>1</SP> - tetrakis - (2- hydroxypropyl) - ethylenediamine, bis - 1- (2 - hydroxypropyl) - 2 - methyl - piperazine or N,N - dimethylaminoethanol and in the optional presence of monofluorotrichloromethane, a polyalkylsiloxane - polyoxyalkylene copolymer, tris - (2 - chloroethyl)- phosphate. In Examples 21--29 urethane linkages were also produced in the foamed polymers using dibutyltin dilaurate as a catalyst and polyols which were (i) a graft polymer made by polymerizing acrylonitrile in a polyol made from propylene oxide and the reaction product of maleic anhydride and a propylene oxide adduct of glycerine, and (ii) a propylene oxide adduct of a Mannich condensate of phenol, diethanolamine and formaldehyde.
Patent GB-798886-A (GB)
Title: Display-device for cut flowers
IPC: A47G7/03
Filed: 1956-02-24
Abstract: 798,886. Flower holder. RAGOT, C. Feb 24, 1956 [April 13, 1955], No. 5853/56. Class 128 A flower holder comprises a suction cup 2 engaging a member 3 detachably connected to a support 1 carrying pins 5 upon which the stems of flowers can be impaled. In one construction, the support is moulded from plastic material, the heads 6 of the pins being embedded therein during moulding. The member 3, also moulded from plastic material, is in the form of a ring having external screw threads, which engage threads in a recess in the base of the support. The opening in the ring is grooved to receive and secure a boss on a rubber suction cup. The ring has an annular flange 10, which bears against the upper surface of the suction cup. In another construction, the support is made of metal and has holes wherein the blunt ends of pins of uniform cross section are held. The pins need not be parallel.
Patent GB-515397-A (GB)
Title: Method of and device for the finished grinding of screw threads
IPC: B24B19/02
Filed: 1938-02-25
Abstract: 515,397. Grinding screw threads. SCHAURTE, W. T., and KAUFMANN, K. Feb. 25, 1938, Nos. 5963 and 5964. Void: Convention dates, Feb. 27, 1937, and May:22, 1937. [Class 60] In grinding screw threads the wheel has a concave form S<1>, Fig. 4, so that when the wheel is set to the helix angle a perfect cylindrical thread is ground. The wheel may be dressed by a roller R<1> mounted on the opposite side of the work and brought into and out of action by compound slides and stops. The wheel may be dressed by a diamond b, Fig. 9, on a slide under the contact of an abutment m and cam n which may have the shape shown in dotted lines at v or may be a section of a cylinder mounted on the angularly adjustable member n<1>. The diamond is indexed for successive grooves at e, and is fed in by a lever under centre of steps s.