baber/WOPTO huggingface dataset:
Patent GB-356636-A (GB)
Title: Improvements in milk coolers
IPC: A01J9/04
Filed: 1931-01-30
Abstract: 356,636. Cooling milk plate heat exchangers. HJORTH, N. E. H., 43, Kordilgade, Kalundborg, Denmark. Jan. 30, 1931, No. 3082. Convention date, Feb. 1, 1930. [Classes 29 and 64(iii).] Fresh milk is fed into a tank 1 fitted with a strainer 6 and issues through perforations 3 to a fitting 12 which directs it as a film over the inner surface of a closely-wound conical coil 7 through which cold water passes. The tank is provided with spaced ribs 4 supported on the fitting 12, and the cooled milk is discharged through a fitting 10 into a can 11. The turns of the coil are soldered together. A number of coils may be used with a single box-like tank.
Patent GB-562358-A (GB)
Title: An improved manufacture of synthetic resinous materials
IPC: C08L89/00
Filed: 1943-02-25
Abstract: In the preparation of moulding powders by condensing together tar acids, an aldehyde and an alkaline dispersion of a partially hydrolysed protein, e.g. rice, the protein is hydrolysed under acid or alkaline conditions and is then stabilised by neutralisation, e.g. with carbon dioxide when the dispersion is alkaline and with ammonia when acids conditions are used.  Prior to use, the pH of the dispersion is adjusted from 9-13 according as a slow or fast setting product is desired.  Further quantities of the dispersion may be added after the condensation reaction. Specification 458,364 is referred to.
Patent GB-401257-A (GB)
Title: A process for increasing the fibre production per unity of area and time of agave-species by means of waste-products of agave and/or gassave and/or other manufactories of cultrue industry being transported in water
IPC: C05F5/00
Filed: 1932-02-04
Abstract: The waste products of factories for the production of fibrous materials from agave, cassave and/or similar plants are used as manures.
Patent GB-387507-A (GB)
Title: Improvements in the dehydrogenation of hydrogenated heterocyclic compounds
Filed: 1932-02-04
Abstract: The dehydrogenation of hydrogenated heterocyclic compounds is effected in presence of a catalyst comprising one or more heavy metals of the 6th group or stable compounds thereof such as oxides, sulphides, or selenides.  The catalyst may also contain activators, stabilisers, &c. such as zinc, copper, cobalt, nickel, iron, calcium, barium, magnesium, or compounds thereof.  Among the substances which may be dehydrogenated are piperidine and its monoalkyl and dialkyl derivatives, tetra- and deca-hydroquinolines, tetra- and deca-hydroquinaldines, the hydrogenated anthrapyridines, a - or -b naphthoquinolines and quinaldines, hydrogenated carbazoles and indols, diphenylene oxide and its homologues, and furane. Hydrogenated carbazoles are obtained by condensing phenylhydrazine with cyclohexanone and its homologues, a mixture of 5 : 6- and 6 : 7-tetramethylenequinolines by the Skraup synthesis from ar - tetrahydro - b  - naphthylamine and glycerine, tetrahydro-a -naphthoquinoline by the Skraup synthesis from ar-tetrahydro-a -naphthylamine and glycerine, and tetrahydrodiphenylene oxide from chlorcyclohexanone and sodium phenolate.  Specification 379,335 is referred to.ALSO:The dehydrogenation of hydrogenated heterocyclic compounds is effected in presence of a catalyst comprising one or more heavy metals of the 6th group or stable compounds thereof such as oxides, sulphides, or selenides.  The catalyst may also comprise activators, stabilizers, &c. such as zinc, copper, cobalt, nickel, iron, calcium, barium, or magnesium, or oxides, sulphides, or carbonates of these metals.  Among the substances which may be dehydrogenated are piperidine and its monoalkyl and dialkyl derivatives, tetra- and decahydroquinolines, tetra- and decahydroquinaldines, the hydrogenated anthrapyridines, a - or b -naphthoquinolines and naphthoquinaldines, hydrogenated carbazoles and indols, diphenylene oxide and its homologues and furane.  The treatment of several of these substances is described in detail. Specification 379,335 is referred to.
Patent GB-130279-A (GB)
Title: Improvements in or relating to Insulated Joints for Electric Conductors.
Inventor: WALSHAW EDWIN ARTHUR
IPC: H01R4/70
Filed: 1919-02-11
Abstract: 130,279. Walshaw, E. A. Feb. 11, 1919. Wire couplings.-A branch wire f is connected to an uncut feed wire g by means of a connecting- plate h having upturned edges m, h which enable the bared wires to be held in position between the shanks of the set-screws i, j and the upturned edges while they are being secured by the setscrews, the whole joint being enclosed in a cylindrical insulating-casing made up of two parts a, b one of which is slotted to receive the insulated feed wire and formed with an external screwthread to receive the other part of the insulating- casing.
Patent GB-524569-A (GB)
Title: Improvements in or relating to the production of bi-metals
IPC: B32B15/01
Filed: 1939-02-01
Abstract: 524,569. Making compound articles; uniting by fusion. BILLITER, J. G. Feb. 1, 1939, No. 3378. [Classes 83 (ii) and 83 (iv)] In producing copper-coated steel or iron, the steel K is given a first thin coat of copper which is welded by heating, and then a second heavy coat of copper is applied, preferably by electrodeposition. The steel &c., may be given a first thin coating of copper by electrodeposition in an alkaline or oxalate bath or in an acid sulphate bath, after having been electrolytically coated with nickel. The coated steel is then heated, at least at the surface, to a temperature above the melting point of copper, e.g., above 1115‹C. and preferably at from 1125‹ to 1150‹C. If the first coating is of copper alone its thickness should be from 0.01 to 0.02 mm. but if nickel is also used the thickness should be 0.02 to 0.08 mm., the thicker coatings being formed in two or more stages, and in the case of wire or rod, being rotated during heating to produce a uniform coating. Oxidation is prevented by an inert atmosphere, by charcoal or by covering the molten copper with melted salt which adheres to the surface of the coated pieces to form a protective film. The second thicker coating of copper may be applied cold by electrodeposition, the surface of the coated steel having been previously cleaned by pickling, etching, anodic polishing &c. The second coating is preferably from 10 to 100 times the thickness of the first coating.
Patent GB-1013204-A (GB)
IPC: F16L33/22
Filed: 1963-01-28
Abstract: 1,013,204. Hose connectors. H. GOLDBERG. Jan. 28, 1963 [Feb. 5, 1963], No. 3382/63. Heading F2G. A hose 24 is connected to a faucet 10 by a device which comprises a tubular male part 11, carrying a socket 12 for attachment to the faucet, on which is formed an annular external bead 14; a tubular female part 15 on which is formed a flexible undercut socket 18 adapted to be a push fit over the bead 14 so as to bring the end of the part 11 into sealing engagement with the bore of the part 15; a locking ring 20 adapted to fit snugly over the end of the undercut socket 18 so as to retain it in coacting relationship with the bead 14, and a spigot 23 at the end of the female part 15 over which the end of the hose 23 is fitted. The part 15, or at least the socket 18, is made from flexible plastic material, e.g. polyethylene, and the walls of the socket are slitted, at 19, to facilitate its reception of the head 14. Two hoses may be connected by using two similar parts 15 and 20, and a doubleended male part with two beads. Other forms of the socket 12 may be used, according to the attachment required.
Patent GB-221724-A (GB)
Title: A dish- or pan-lifter
IPC: A47J45/10
Filed: 1924-02-09
Abstract: 221,724. Sykes, E. Feb. 9,1924. Picking-up tools.-A dish or pan lifter is formed of two pieces of bent wire A, B each formed with two claws a, a<1>, b, b' for gripping the dish &c. The piece B is formed of two rods B<1> which are twisted at a<4> to form the parts on which the claws b, b<1> are produced. The piece A serves as a handle, and can slide, on the rods B<1> which pass through eyes a<2> formed in the piece A. Below the eyes a<2> the wires of the piece A are twisted at a' to form the claws a, a<1>.
Patent GB-524576-A (GB)
Title: Improvements in and relating to electric supply systems for unilaterally conductive load devices
IPC: H05G1/16
Filed: 1939-02-01
Abstract: 524,576. Supply systems for X-ray apparatus; converting. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 1, 1939, No. 3394. Convention date, Feb. 1, 1938. [Classes 38 (ii) and 38 (iv)] A load device having a rectifying action, such as an X-ray tube 17 supplied with A.C., is protected against the large inverse voltage which occurs during the non-conducting half-cycles of the device, by means of an impedance 25 connected in series in the supply and which is arranged to'have a low impedance to current in the forward direction and large to currents in the reverse direction. The impedance comprises a saturable inductance supplied with D.C. from a source 26 of such polarity that its saturation in the forward direction is increased. The secondary circuit of the step-up tranformer 21 may be adjusted to resonance by means of a condenser 22. The voltage across the primary of the transformer 21 may be adjusted by means of a variable resistance 31. A.C. is prevented from flowing in the circuit of the battery 26 by means of an inductance 28 and D.C. is prevented from flowing in the main circuit by means of a condenser 30. The system as shown is supplied from a 3-phase supply 13 through three transformers 10, 11, 12 connected in open delta on the secondary side and operating at saturation to give a threefold increase in frequency. Specifications 370,549 and 437,935 are referred to.
Patent GB-574006-A (GB)
Title: An improved stall warning device for aeroplanes
IPC: B64D45/00
Filed: 1941-03-13
Abstract: 574,006. Aircraft stalling indicators. PRINGLE, G. E. March 13, 1941, No. 3403. [Class 4] A device for warning the pilot when the airspeed and attitude of the aircraft are such that there is danger of stalling, comprises an indicator actuated by means responsive to changes of static air pressure at points near the leading edge of a wing and close to its surface, one or more of the points being in the slip stream from one or more of the propellers, on the downward side of their rotation, to take account of any engine failure and at least one point being clear of such slip stream. In one form, Fig., 2, two chambers 4, 15 having flexible diaphragms 5, 16 are connected respectively to apertures clear of and within the slip stream from a single propeller, both diaphragms 5, 16 being connected to a lever 6 pivoted at 7 and controlling contacts 8, 9. The diaphragms are exposed to the pressure in a chamber 11 connected through a tube 12 to the usual static pressure tube of the aircraft. Fig. 6 shows apparatus for use on a twin-engined aircraft. A triangular frame pivoted on an axis 27-28 is connected at its apex to a diaphragm 20 subjected to pressure from a vent on the wing clear of propeller slip stream. Two further diaphragms 21, 24 are connected to the frame and are subjected to the pressures from vents in the slip streams of the two propellers. Two further diaphragms 22, 25 subjected to the same two pressures as the diaphragms 21, 24 are connected to a lever 29 rocking about an axis 30 so that a contraction of either diaphragm will press one or other end of the lever against the frame which carries a contact 32 cooperating with a contact 33. The apparatus is enclosed in a chamber subjected to static pressure derived from the pressure head. Fig. 7 shows another form in which two successive indications are given as stalling conditions are approached. A pivoted frame 47 is connected to two diaphragms 41, 43 subjected to pressure from vents clear of and within the propeller slip stream respectively, and carries a contact 56. Contacts 53, 54 are supported from a diaphragm 45, subjected to pitot pressure derived from the pressure head, the diaphragm also supporting a slotted link 55 co-operating with a pin 51 on the frame 47. As stalling conditions approach, the contacts 56, 53 close and afterwards the contact 54 engages a fixed contact 57 in a different lamp circuit. Two vents at different positions on the leading edge also may be arranged to control two different warning circuits in sequence, or the same vent may close two successive contacts, the second one being closed through a lost-motion connection.
Patent GB-305186-A (GB)
IPC: B62B1/14
Filed: 1929-02-01
Abstract: 305,186. Funk, O., (Assignee of Motorenfabrik Deutz Akt.-Ges.). Feb. 1, 1928, [Convention date]. Hand-trucks for transporting load bodies comprises a two-wheeled frame adapted to embrace the body and engage under lateral projections on the body whereby the body may be raised by depressing the handle of the frame which is then engaged with another projection on the body to prevent overbalancing. As shown in Figs. 1 and 2 the frame d is provided with two levers f adapted to engage lateral projections b in the sides of the body a which is then raised by depressing the handle e of the frame d. A bolt g is then inserted to engage projections q on the body. In Figs. 4 and 5 the frame d is provided with claws h having two recesses adapted to engage with lateral projections b, c on the body a to raise it to transporting position.
Patent GB-1159651-A (GB)
Title: New Cationic Dyestuffs derived from Naphthoylene-Benzimidazolium Compounds and their Applications to Dyeing
Inventor: SUREAU ROBERT FREDERIC MICHEL
IPC: C09B57/12
Filed: 1967-01-24
Abstract: 1,159,651. Naphthoylene - benzimidazolium cationic dyes. UGINE KUHLMANN. 24 Jan., 1967 [24 Jan., 1966], No. 3519/67. Heading C4P. The invention comprises dyestuffs of the formula wherein rings A and B may be substituted by halogen atoms, alkyl, alkoxy, NO 2 , CN, CF 3 , alkylsulphonyl or sulphonamido groups, R is an alkyl or aralkyl group; R 1  and R 2  are H, alkyl, aryl, aralkyl or cycloalkyl groups which may be substituted by halogen, alkyl, alkoxy, phenoxy, OH, CN, CF 3 , NH 2 , acylamino, alkyl- or dialkyl-amino, phenyl-, N-alkyl-N-phenyl- or aralkyl-amino groups or R 1  and R 2  together with the N atom form a heterocyclic nucleus, and X is a monovalent anion. They may be obtained by reacting an amine of the formula HNR 1 R 2  with a dye of the formula wherein R 3  is a Cl or Br atom. Examples are given for the production of the dyes. They are useful for dyeing fibres based on polymers or copolymers of acrylonitrile. Dyes of Formula III may be obtained by treating compounds of the formula with alkylating or aralkylating agents. In an example, 4,5-dichloro-l,8-naphthalic anhydride is condensed with 4-methoxy- 1,2. diamino-benzene sulphate and the resulting dichloro-naphthoylene - methoxy - benzimidazole is alkylated with methyl sulphate to give, N - methyl - dichloro - naphthoylene - methoxybenzimidazolium methyl sulphate.
Patent GB-710732-A (GB)
Title: Improvements in or relating to hydrocarbon oil composition
Inventor: FIELDS JOSEPH E
IPC: C10M171/00
Filed: 1952-02-11
Abstract: An anti-foaming agent for hydrocarbon oils consists of a liquid polymer of a vinyl ester of the formula R.CO.OCH:CH2 in which R is an alkyl radical of 1 to 8 carbon atoms, or a copolymer of two or more such esters, a 10 per cent. solution in cyclo-hexanone of said polymer having a specific viscosity of 0.25 to 1.5 at 25 DEG C.  The agent is effective in amounts up to 1 per cent. by weight of the total composition.  Specified polymers are those of vinyl acetate, propionate, n-butyrate, isobutyrate, n-valerate, isovalerate, caproate, dimethylethyl acetate, 2-ethyl hexoate and caprylate, and copolymers of vinyl acetate with vinyl caprylate and vinyl propionate with vinyl n-heptoate.  Other additives may be added to the compositions.  The polymers may be made by polymerizing in solution at temperatures of 70 DEG  to 110 DEG C. in the presence of a catalyst.  Specified solvents are benzene, toluene, cyclohexane, iso-octane, carbon tetrachloride, ethylene chloride and chlorobenzene.  Suitable catalysts are benzoyl and stearoyl peroxides, tert-butyl hydroperoxide and ammonium persulphate.ALSO:A hydrocarbon lubricant or oil composition contains as an anti-foaming agent a liquid polymer of a vinyl ester of the formula R-CO-O CH:CH2 in which R is an alkyl radical of 1 to 8 carbon atoms, or a copolymer of two or more such esters. a 10 per cent. solution in cyclohexanone of said polymer having a specific viscosity of 0.25 to 1.5 at 25 DEG C.  The agent is effective in amount up to 1 per cent. by weight of the total composition. Specified polymers are those of vinyl acetate, propionate, n-butyrate, isobutyrate, n-valerate, isovalerate, caproate, dimethylethyl acetate, 2 - ethylhexoate and caprylate and copolymers of vinyl acetate with vinyl caprylate and vinyl propionate with vinyl n-heptoate.  Other additives may be added to the composition.
Patent GB-506851-A (GB)
Title: Improvements in or relating to chairs, settees or the like
IPC: A47C7/38
Filed: 1938-02-04
Abstract: 506,851. Arm-chairs. BOLISTON, G. C.. Feb. 4, 1938, No. 3548. [Class 52 (ii)] In an arm-chair, the portion of the back above the arms comprises two parts, a rear fixed part 4, and two folding sections 5, hinged to the sides of the fixed part and meeting when folded down thereon, which can.be unfolded to form side wings. The upholstery is preferably so arranged, e.g. by forming vertical flutes, so as to hide the line where the two sections 5 meet. The chair arms may be provided with means to engage the sections in the unfolded position, and the top edges of the sections may have rolls 8 extending normally over the rear back 4.
Patent GB-633249-A (GB)
Title: Improvements in or relating to inductances provided with variable-position contact members
IPC: H04B1/03
Filed: 1948-02-06
Abstract: 633,249. Inductances. GENERAL ELECTRIC CO., Ltd., ANGELL, B. L. C., and HOPKINS, S. E. Feb. 6, 1948, No. 3551. [Class 38 (ii)] In a H.F. variable inductance in the form of a helical coil along which a plurality of sliders move helically without the need to cross over, the driving mechanism moving the said sliders comprises a plurality of axiallydisposed splindles equal in number to the slides and arranged to rotate without linear motion, each splindle being linked with one of the slider supports in such a manner as to move its respective slider helically around the coil in continuous contact with it. Two lead screws 4, 5 having longitudinal keyways 6, 7 respectively, are supported by end-plates (not shown) in such a manner that the lead-screws can be rotated without moving axially. Two circular carriers 8, 9 of' insulating material are supported within a coil 3 by the lead-screws 4, 5 which pass through co-operating nuts 10, 11 respectively, which are fixed to the carriers 8, 9 respectively, and through free bearings 13, 12 respectively, fixed to the carriers 9, 8 respectively. Gear-wheels 14, 15 slidably keyed to the keyways 6, 7 respectively, mesh with internally-toothed rings 18, 19 respectively, which run on four bearings 20 secured to the carriers 8, 9. Sliding contacts 1, 2 which bear on the inside of the turns of the coil 3 are supported by the rings 18, 19. The pitch of the lead-screws 4, 5, and the ratio of the gearwheels 14 and 18 or 15 and 19 are so chosen that a slider 1 or 2 makes one revolution as the carrier 8 or 9 moves a distance equal to the coil pitch. Screening against excessive eddy current effect is provided by having the rings 18, 19 made of high conductivity material.
Patent GB-1075891-A (GB)
Title: Improvements in and relating to perforated high polymer film laminates
Inventor: KAABER HENNING
IPC: B65D30/06
Filed: 1964-01-28
Abstract: 1,075,891. Laminates. METAL CONTAINERS Ltd. Jan. 26, 1965 [Jan. 28, 1964], No. 3631/64. Heading B5N. Laminated material suitable for making waterproof but ventilated bags comprises two or more superposed high polymer films 5, 6, e.g. of high density polythene or polypropylene, having perforations 8, 9 arranged in staggered relation, the films being secured together, as by welding or adhesive, in areas between the perforations such that communicating passages are left between perforations in adjacent layers. The perforations may be in rows, but staggered in the two layers, and the layers may be secured together between the rows. Alternatively the perforations may be in communicating pairs, the layers being adhered in a pattern surrounding the pairs. Any shape of perforation may be provided, circular and elongated perforations being shown. A third layer 7, the perforations 10 in which may or may not register with those in layer 5. To improve tear resistance the films may be unidirectionally oriented, the orientation direction being different in adjacent films.
Patent GB-657212-A (GB)
Title: Improvements relating to the preparation of solutions of polyvinyl chloride
IPC: C08J3/09
Filed: 1949-02-10
Abstract: Polyvinyl chloride of high molecular weight is dissolved in a mixture of acetone and perchlorethylene containing from 30 per cent to 70 per cent by volume of acetone.  The solution may be diluted with acetone, perchlorethylene, benzene, toluene, ethyl, butyl or amyl acetate, trichlorethylene, methylene dichloride or carbon disulphide. Plasticizers, fillers, dyestuffs and anti-delustrants may be added to the solution which may be used in the preparation of threads, films, artificial horse-hair, strips, straw, varnish, lacquers and filaments.
Patent GB-666839-A (GB)
Title: Improvements in or relating to stands for pocket watches and like timepieces
IPC: A47F7/02
Filed: 1950-02-14
Abstract: 666,839. Watch stands. SEAGER, J. H. May 24, 1950. [Feb. 14, 1950] No. 3773/50. Class 52 (v). A watch stand comprises a body of resilient sheet or plate material which holds the neck of the watch in a notch, slot or fork and grips the sides of the watch under the resilience of the material of which the body is made. As shown in Fig. 1, the back plate 2 of the stand is bent over to form a slotted lug 3, the entrance to the slot lying between projections 6 which hold the neck in place. Side lugs 7 form clips which spring over the sides of the watch case. As shown in Fig. 6, a C-shaped sheet of resilient material grips the sides of the watch while a slot 4 with projections 6 holds the neck. As shown in Fig. 7, a flat plate 10 of resilient material has an opening 12 to receive the watch and a slot 13 which holds the neck of the watch. The watch snaps into a groove 14 and is held by the resilience of the material.
Patent GB-1057202-A (GB)
Title: Hinged double flight endless conveyor
IPC: B65G37/00
Filed: 1965-01-28
Abstract: 1,057,202. Endless conveyers; discharging from vehicles. W. E. COY. Jan. 28, 1965, No. 3908/65. Headings B8A and B8E. A pair of endless belt conveyers 18, 28 for unloading material from a vehicle 12 have parallel side frames 16, 27, pivotally connected end-to-end by links 24, Fig. 1, the conveyer 28 at the discharge end being driven from the conveyer 18 through a chain drive 29. The assembly is adjustably supported as by cable 30 and chain 34, coupled through stirrup 33 to an extension of links 24. In a modification (Fig. 2, not shown), connecting links (40) are extended at one end and are supported by a second cable (47) through a stirrup (45).
Patent GB-158842-A (GB)
Title: Improvements in electric liquid heaters
IPC: F24H1/10
Filed: 1921-02-02
Abstract: 158,842. Festa Akt.-Ges. Feb. 11, 1920, [Convention date]. Heating by electricity. - Water is heated by a current passed through it between sectorshaped carbon or other electrodes A, B, C disposed around an insulating-tube D, Figs. 1 and 2. Water passes down the tube D into a shell E and upwards between the electrodes into a casing H, having an outlet at the bottom. The current may be supplied by springs F inserted under high pressure into axial grooves in the electrodes and retained by a circumferential notch, or may be supplied by studs screwed into the electrodes. The heater may be used with three-phase current or on an alternating or direct current three-wire system. In the latter case, the electrode A is connected to the neutral wire and the gap between the electrodes B, C is filled with insulating-material.