baber/WOPTO huggingface dataset:
Patent GB-955235-A (GB)
Title: Vulcanisation process
IPC: C08L21/00
Filed: 1962-05-16
Abstract: A natural or synthetic rubber is vulcanized in the presence of a trifunctional phenol resin and one or more halides of metals of Group IIa, IIb, IIIa or IIIb or halides of a heavy metal of specific gravity above 4, or a mixture of precursors for such halides.  A trifunctional phenol resin is defined as one derived from the alkaline condensation of an aldehyde having from 1 to 7 carbon atoms with a trifunctional phenol and subsequent or simultaneous, partial or complete etherification of the alkylol groups of the polyalkylol resin so formed.  A trifunctional phenol is a phenol in which the groups ortho,- ortho and para to the phenolic hydroxy group are not blocked by either direct substitution or by steric hinderance and any substituents in the meta positions do not contain more than 3 carbon atoms altogether. Specified aldehydes are acetaldehyde, propionaldehyde, butyraldehyde, crotonaldehyde, benzaldehyde and furfural but formaldehyde is preferred, while m-cresol, 3-5-xylenol and (preferred) phenol are specified phenols-a minor proportion of a phenol not meeting the above requirements may also be present. The alkylol groups of the polyalkylol compounds, obtained by the reaction of 2 to 3 mols of aldehyde with the phenol may be partially etherified with monohydric alcohols to such an extent that they are still soluble in organic solvents. Methyl and higher alcohols and benzyl-alcohol are specified.  The partially etherified resins may be modified e.g. plasticized by heating to above 70 DEG C. with a hydroxy fatty acid containing more than 10 carbon atoms or a glyceride thereof.  The resins may also be plasticized with fatty oils, urea resins, and polyester resins. Specified elastomers are natural rubber, butyl rubber, halogenated butyl rubber, polybutadiene, polyisoprene, polychloropreneazo/copolymer of butadiene and/or isoprene with styrene or acrylonitrile.  Specified halides are the chlorides of zinc, iron, aluminium, tin (ores), chromium, nickel, cobalt, and manganese, stannous chloride and aluminium fluoride.  The metal halides may be produced in situ from a metal compound and a halogen-donor and the usual lists of each are given.  The usual compounding and vulcanizing agents may also be present. Specification 409,397 is referred to.
Patent GB-148287-A (GB)
Title: Improvements in thrust roller bearings
IPC: F16C19/30
Filed: 1920-07-06
Abstract: 148,287. Nordiska Kullager Aktiebolaget. July 18, 1919, [Convention date]. Roller bearings.-The rollers of a thrust roller bearing have curved operative surfaces the producer of which has a radius of curvature 6 greater than the radius 5 of the roller. The races 1, 3 have the same or less curvature as the rollers, or they may be plane in convex.
Patent GB-801608-A (GB)
Title: Apparatus and method for cooling or quenching
IPC: C21D1/667
Filed: 1956-06-19
Abstract: 801,608. Quenching apparatus. DEUTSCHE EDELSTAHLWERKE AKTGES. June 19, 1956 [June 25, 1955], No. 18991/56. Class 72 A method of hardening a workpiece consists in heating it and then quenching by a non-turbulent uniform film-like discharge of a quenching medium by forming a body of the medium under substantially only static pressure and discharging it through a channel the inlet to which is of. smaller cross-section, than any subsequent part, including the delivery opening. As shown, applied to quenching a cylindrical body, an annular body has a preliminary chamber 1 fed with medium from a pipe 2 of large diameter. The medium flows from the chamber, through holes 7 in a partition 3 into an intermediate chamber 4 and then, through holes 8 in a partition 5 into a chamber 9 which immediately precedes a delivery slot 6. The holes 7 and 8 and the slot 6 are so arranged that the flow section increases from 7 to 6. More than one intermediate chamber 4 may be used.
Patent GB-1349527-A (GB)
Title: Silica-containing bonding materials
IPC: C04B35/14
Filed: 1971-06-04
Abstract: 1349527 Ceramic composition CORNING GLASS WORKS 4 June 1971 [12 June 1970] 18994/71 Heading C1J Ceramic, fibrous or porous materials may be bonded by (1) mixing with 3-75 wt. per cent silicate solution containing 1 to 12 moles of SiO 2  per litre and having a pH of at least 10 and a gelating agent comprising (a) either MgO or MgO co-fused with a material which does not cause gelation or (b) at least one of the compounds formaldehyde, paraformaldehyde, glyoxal, formamide, methyl formate, methyl acetate, ethyl formate or acetate, (ii) shaping the mixture, (iii) reacting the gelating agent with the silicate for a sufficient length of time to reduce the pH and polymerize the silicate, and optionally (iv) sintering the shape. The material to be bonded may be metallic oxides, carbides, borides, silicides, nitrides, inorganic fibres, e.g. asbestos, organic fibres, e.g. cellulose, metals and alloys and synthetic organic polymers. The material co-fused with MgO may be Al 2 O 3 , Cr 2 O 3 , ZrO 2 , La 2 O 3 , CeO 2 , EuO 2 , MoO 3 , Ta 2 O 5 , WO 3 , petalite, lipidolite, and/or spodumene. The silicate solution may be derived from powdered silicate glass, alkali metal silicates, organic ammonium silicate or colloidal silica.
Patent GB-152453-A (GB)
Title: Improvements in and relating to non-slip grip for bath tubs
IPC: A47K3/00
Filed: 1919-08-01
Abstract: 152,453. West, A. Aug. 1, 1919. B a t h s , aocessory fittings for.-A sheet 7 of metal or gutta-percha of the form shown and having coverings 11, 13 of india - rubber is sprung on to the rim 6 of a bath to act as a hand-grip.
Patent GB-441049-A (GB)
Title: The manufacture of vat dyestuffs
IPC: C09B3/78
Filed: 1935-07-04
Abstract: Vat dyes are prepared by acylating amino derivatives of condensation products prepared by treating "glyoxaldianthraquinone compounds" obtainable according to Specification 369,765 with an acid condensing agent either of the aluminium halide group or of the sulphuric acid group according to Specification 410,552.  Insofar as the initial materials in the foregoing processes do not contain amino groups, these may be introduced by nitration followed by reduction (to give mono- and di-amino derivatives) or by treating halogenated products with p-toluenesulphonamide followed by saponification.  Acid chlorides, anhydrides or esters may be used for acylation.  In examples: (a) the condensation product prepared by acting with a mixture of aluminium chloride, sodium chloride, and manganese dioxide on the condensation product of anthrone and glyoxal sulphate (cf. example 1 of Specification 369,765) is nitrated in nitrobenzene and reduced to give a monamino body which is acylated with benzoyl chloride (reddish-brown), o-chlorbenzoyl chloride (brown) p-methoxybenzoyl chloride (brown), acetic anhydride (brown), anthraquinone-2-carboxylic acid chloride (red-brown), 1-aminoanthraquinone-2-carboxylic acid chloride (red-brown), pyrazolanthrone-2-carboxylic acid chloride (yellow-brown); (b) the condensation product of example 1 of Specification 369,765 is nitrated in sulphuric acid, and reduced to give a diamino body which is condensed with benzoyl chloride (yellow-brown), anthraquinone - 2 - carboxylic acid chloride (brown); (c) the condensation product obtained by subjecting the product of 1-chloranthrone and glyoxal to alcoholic caustic potash and then to an aluminium chloride melt (cf. Specification 369,765) is treated with p-toluenesulphonamide and saponified (cf. example 5 of Specification 410,552); the diamino compound is treated with p-methoxybenzoyl chloride (yellow-brown); (d) the product of 2-chloranthrone and glyoxal is treated with a mixture of aluminium chloride, sodium chloride and manganese dioxide (cf. example 2 of Specification 369,765), nitrated and reduced to an amino body which is treated with benzoyl chloride (yellow-brown).
Patent GB-372150-A (GB)
Title: An improved regulating device for an automatic automobile clutch
IPC: B60K23/02
Filed: 1931-07-03
Abstract: 372,150. Controlling motor vehicle clutches. JANDER, H., 51, Emdenerstrasse,- Berlin. July 3, 1931, No. 19206. Convention date, July 4, 1930. Addition to 371,923. [Class 79 (v).] The clutch of a motor vehicle is operated by a servo-motor controlled by the accelerator and by means responsive to the engine speed as described in the parent Specification ; according to the present invention the vacuum created in the inlet or induction pipe of the engine is used as the speed-responsive means, thecontrol means of the servo-motor being operated by an electromagnet so arranged that when a switch controlled by the accelerator is closed the servomotor is not connected to the induction pipe, i.e. the clutch is not disengaged, until the vacuum is reduced to the degree that corresponds to a predetermined low engine speed. In the construction shown the clutch pedal 1 is depressed to disengage the clutch by a servomotor 7 having a vane or piston 8 and two chambers 9, 10, the chamber 10 being always open to the atmosphere at 11 and the chamber 9 being adapted to be connected either to the atmosphere at 16 or to the induction pipe 15 by a rocking valve 22, 23. The atmosphere inlet 16 is formed as a magnet having two coils 25a, 26, the circuit of coil 25a being made from battery 29 through switch 28, wire 30 and switch 31 controlled by the accelerator pedal 21. When the accelerator pedal is released to close the throttle 17 the switch 31 is closed and the coil 25a is energized. This coil is so arranged that the magnet 16 is not sufficiently powerful to attract the valve 23 against the suction on the valve 22 until the speed of the engine is reduced to a predetermined idling speed. Thus, even when the accelerator is released, the clutch is not disengaged until the engine slows down to the idling speed. The effect of the coil 25a may be varied by using an adjustable spring on the valves 22, 23, by altering the number of turns on the coil, or by varying the position of the coil of the magnet 16 relatively to the valve 23. The clutch may be disengaged at any time during change of gear by means of a gripping lever 34 on the gear lever 35. The gripping lever 34 carries contacts 33, 38 adapted to be earthed at 36, 39 and so complete the circuits of both coils 25a, 26, so that the valve 23 is closed and 22 is opened to disengage the clutch, whenever the lever 34 is gripped.
Patent GB-770041-A (GB)
Title: Improvements in photographic shutters
IPC: G03B9/64
Filed: 1954-06-30
Abstract: 770,041. Photographic camera shutters. GAUTHIER GES., A. June 30. 1954 [Sept. 8, 1953], No. 19211/54. Class 98(1) In a photographic shutter having a delay mechanism which is released by movement of the shutter blade driving mechanism before the blades commence to open, the shutter blade driving mechanism is locked after releasing the delay by a locking member which is unlocked only after the delay has run for an initial period. In the embodiment shown in the drawings, the delay mechanism is set simultaneously with the shutter and comprises a disengageable part for flash contacts as described in Specification 770,040, except that the disengageable part is not adapted to be disengaged automatically when the shutter is set to "B" or " T." On setting the shutter, the delay is wound by the lever 39 which moves the geared segment 17 in a clockwise direction against the action of spring 29. It is held in the set position by lever 33, one end of which engages a gear of the delay (not shown), and is released by the member 34 on the shutter blade ring striking the other end 33<SP>11</SP> of the arm 33 as described in Specification 770,040. Immediately after releasing the delay, the arm 34 is locked In Fig. 1, the arm 34 is locked by the nose 35<SP>1</SP> of the pivoted lever 35, but as the delay runs down, the arm 39, working on the pin 40 of the geared segment 17, is lowered and depresses the lever 35, thus releasing the blade ring. In Fig. 4, the arm 34 is locked by a projection 46<SP>1</SP> on an arm 46, pivoted at 45. As the geared segment 17 rotates anticlockwise, the pin 48 pivots the bell crank lever 47 in a clockwise direction and the end 47<SP>1</SP> thereof engages the end 46<SP>11</SP> of the locking arm 46 and pivots it against the spring 49 to release the blade ring. Specification 684,502, U.S.A. Specification 2,404,526 and German Specification 853,709 also are referred to.
Patent GB-678535-A (GB)
Title: Circuit arrangement for supervising the operation of a relay armature
Inventor: SNIJDERS ANTONIE
IPC: H04L25/24
Filed: 1950-08-01
Abstract: 678,535. Telegraph exchange systems. STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Aug. 1, 1950, No. 19240/50. Class 40 (iii). In an arrangement for supervising the operation of the armature a of a relay by means of a condenser-resistance circuit in combination with a valve B and a supervisory relay AR, the valve B is conductive when the armature a is in the position shown, but the relay AR is unoperated since current flows through the winding 1-2 in addition to that flowing through the winding 3-4 from the battery V<SP>1</SP>, V<SP>2</SP>. When the armature a moves to the opposite spacing position current through the winding 3-4 is interrupted and the valve B is rendered non- conducting so that the winding 1-2 is initially without current. After a time determined by the values of C<SP>1</SP>, R<SP>1</SP>, the grid of the valve B loses its negative charge, the valve conducts, and if the armature is still in the spacing position the relay AR operates. A holding circuit may be closed at contact ar, and the circuit can be broken at s when required. In a modification, Fig. 2 (not shown), a rectifier is used to short circuit the operating winding of the supervising relay when the valve is conductive and the armature to be supervized is in its normal (mark) position. When the armature moves to its other position the short circuit is removed and the winding is energized when the valve, after a predetermined time, is rendered conducting, if the armature is still in its operated position. The second winding of the relay is in series with a normally open locking contact which closes when the relay operates and holds it operated. Specification 655,371 is referred to.
Patent GB-1212751-A (GB)
Title: Aqueous formaldehyde solutions
Inventor: WOLZ HERMANN
IPC: C07C45/38
Filed: 1968-04-24
Abstract: 1,212,751. Aqueous formaldehyde solutions. FARBENFABRIKEN BAYER A.G. 24 April, 1968 [29 April, 1967], No. 19300/68. Heading C2C. Aqueous methanol-free formaldehyde solutions are prepared by completely or partially reacting a feed mixture of methanol vapour, water vapour and air on a silver catalyst at a temperature in the range from 450-750‹ C., in which the vaporous reaction mixture is cooled to 100 to 200‹ C., accomplished by the indirect generation of steam, the reaction gases are subsequently condensed in several stages and washed with the condensate and finally with water, the steam generated being used to produce the mixture of methanol vapour and water vapour from the corresponding liquids, wherein the heat still present in the reaction gases at a temperature of 100-200‹ C., including the heat of condensation, is taken up with water some of which is evaporated at a reduced pressure, the steam generated at a pressure of less than 1 atmos. is compressed, and used to produce the methanol vapour/water vapour mixture when the feed mixture has been completely reacted or to rectify the methanolcontaining formaldehyde solution when the feed mixture has been partially reacted.
Patent GB-789882-A (GB)
Title: Improvements in or relating to microporous films and their production
IPC: H01M50/449
Filed: 1954-07-01
Abstract: Microporous films are made by dispersing throughout a continuous, highly viscous matrix medium thermoplastic particles which are not compatible with the matrix medium, heating the dispersion to fuse the thermoplastic particles and then removing the matrix medium. Specified thermoplastic particles are polyvinyl acetal, polyvinyl formal, polyethylene, polystyrene, polybutadiene-styrene, polytetrafluoroethylene, polytrifluoromonochloroethylene, polymethyl methacrylate, polyvinyl acetate, polyvinyl acetate-chloride, polyvinyl chloride, polyvinylidene chloride, polyamides, shellac, casein, chlorinated rubber, cellulose acetate, propionate, acetate-butyrate or nitrate, and ethyl cellulose.  Specified matrix media are polyisobutylene and siloxane polymers, e.g. methyl, methyl ethyl or methyl phenyl siloxane polymers. Specified solvents which may be used both to dissolve and to dissolve out the matrix media are hexane, mineral spirits, toluol, xylol and trichlorethylene. Preferably the thermoplastic particles are 0.2-20 microns in size and comprise 30-75 per cent of the total volume.  The films may be used as battery separators.ALSO:Microporous films are made by dispersings throughout a continuous matrix highly viscous medium, chlorinated rubber particles not compatible with the matrix medium, heating the dispersion to fuse the chlorinated rubber particles and then removing the matrix medium.  Specified matrix media are polyisobutylene and siloxane polymers.  Solvents which may be used both to dissolve and to dissolve out the matrix media are hexane and mineral spirits.
Patent GB-316408-A (GB)
Title: Improvements in cricket bats
IPC: A63B59/08
Filed: 1928-07-04
Abstract: 316,408. Surridge & Co., Ltd., S., and Surridge, P. July 4, 1928. Cricket bats.-A cricket bat is formed at its extreme end with a transverse groove in which is secured a reinforcing insertion 3 of ash, plywood, fibre or other suitable material, the bottom 2 of the groove following an arcuate curve or curves and the corresponding edge of the reinforcing insertion being correspondingly shaped to fit the same.
Patent GB-1526378-A (GB)
Title: Central heating and water heating system
IPC: F23N1/08
Filed: 1976-05-11
Abstract: 1526378 Combined central heating and domestic supply hot water system SAUNIER DUVAL 11 May 1976 [27 May 1975] 19403/76 Heading F4A A water heating system, in which water heated in a boiler heating element 4 by a gas fired burner 3 is selectively circulated by a pump 21 through either a central heating circuit 7 or a domestic water heating circuit 8, includes a regulating control system comprising a domestic water tank thermostat 25<SP>1</SP>, a circulating water thermostat 32<SP>1</SP>, means 24 connected to electric supply U, in series with the contact 25 of thermostat 25<SP>1</SP> to operate or change over device 10 to select between the water circuits 7 and 8, a manual two-position switch 28 to connect the pump 21 either in series with contact 25<SP>1</SP> or direct to the electric supply, and a solenoid gas valve 30 for the burner which receives power from between the pump and switch 28 either directly or via the contact 32 of the thermostat 32<SP>1</SP> depending on the position of the device 10. The switch 28 has summer E, and winter H positions and in the Figure shown the winter position is selected. The device 10 is arranged inside a valve casing 1 and is operated by a rod 12 secured to a membrane 13; the rod 12 being normally biased by a spring 22 to the position shown so that water is circulated to radiators 9 in the central heating circuit 7. A rectifier bridge 29 feeds power to the solenoid gas valve 30 of the burner 3 via a switch 31 connected to be operated by the rod 12. In the system shown an additional thermostat 26<SP>1</SP> senses the outlet temperature of water circulated through the heater in the domestic water tank 20 and its contact 26 is arranged in series with contact 25. The pump remains on all the time and while contacts 25, 26 are open (as shown) thermostat 32<SP>1</SP> controls burner operation. When the temperatures sensed by thermostats 25<SP>1</SP>, 26<SP>1</SP> drop below predetermined levels their contacts 25, 26 close and a solenoid valve 24 is actuated to move down a member 18. This movement unblocks a pipe 16 and closes an opening 19 within the casing 1. A pressure differential is thereby created between chambers 14 and 15 of the casing 1 which moves membrane 13 and its rod 12 to the right to change over the switch 31 (making the solenoid gas valve electric supply independent of thermostat 32), and to move the device 10 (diverting water through circuit 8 to the tank 20). When the summer position H of the switch 28 is selected (Fig. 2, not shown) the electric supply to both the pump and burner is dependent on operation of the contacts 25, 26.
Patent GB-329551-A (GB)
Title: Improvements in and relating to gaseous exothermal catalyses
IPC: C01C1/04
Filed: 1929-06-24
Abstract: 329,551. Union Chimique Belge Soc- Anon. Nov. 13, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Catalytic apparatus.- Exothermal gaseous catalytic reactions are carried out in an apparatus wherein the incoming gases, after passing between the outer pressure tube and the heat exchanger are divided into two adjustable currents, one stream traversing the heat exchanger and the other bye-passing it, be fore finally joining again to pass through the catalyst. In the apparatus shown, the gases enter at 14 and pass through the annular space 8 which is preferably heatinsulated. They are then divided by the valve 16. One gas current passes, via the pipe 17, through the heat exchanger 7, and then, by means of the pipe 18, to the top of the central chamber 4, where it rejoins the other portion of the reaction gases which are passed directly to the chamber 4, by the conduit 20. After passing through the catalyst, and then the heat exchanging chamber 6, the gases leave the reaction vessel at 21.
Patent GB-293423-A (GB)
Title: Improvements in electric time pieces
IPC: G04C3/06
Filed: 1928-07-04
Abstract: 293,423. Etablissements L. Hatot. July 6, 1927, [Convention date]. Electric.-In an electric watch in which the balance is given an impulse each complete swing by means of a fixed magnet and a coil on the balance, the contacts for the coil circuit are disposed very closely to the centre of the balance but not in the same plane as the, balance. The fixed magnet 5, Fig. 2, is attached at 5<1> to the watch frame and the balance 1 has counterweights 3, 4 and a coil 2. It also carries, Fig. 3, an insulated arm 8<1> having a pin 13 which coacts with a part 11 pivoted to the watch frame and a non-conducting pin 12 on the balance. The coil circuit is closed each time the parts 11, 13 meet. In a modification, Fig. 5, a support 16 secured to the balance staff 17 has a hole through which projects a pawl 14, 18 pivoted at 15 and biased to the position shown by a spring 20. Pawl 14, 18 is the pawl driving the clockwork through the ratchet 19 which is held against retrograde movement by the pawl 21, 23 pivoted at 22 and having a. pin 25 which meets a contact 27 to close the coil circuit each time the ratchet is moved a step. Part 28 is of steel or precious stone, pin 25 is of platinum, and part 27 is a gold tube secured by a pin 28 to a flexible blade 26. The invention is also applicable to clocks of various kinds, including the clocks of synchronizing systems. Also the coil may be stationary and the magnet movable. Jewelling and pivoting.-The spindle 22 of the pawl 21, 23 is carried between a thrust-plate 29 and a spring 31, Fig. 7. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modified switch, Fig. 8 (Cancelled), in which the contact pin G, carried by an arm P on the balance, coacts' with a flexible blade l<1> attached at S to the frame and bearing against a rigid blade l<2>. The upper face of blade l<1> is conducting; the under surface non- conducting. When the pin G moves in the direction of arrow f<1> it wipes past the blade l<1> without closing the coil circuit. On the return, however. it meets the upper conducting surface of l<1> and bends l<1> about the end of arm l<2> until it snaps free. 'This subject-matter does not appear in the Specification as accepted.