baber/WOPTO huggingface dataset:
Patent GB-744386-A (GB)
Title: Improvements in or relating to resins
IPC: B01J41/14
Filed: 1953-07-29
Abstract: Anion exchange resins consisting of a quarternary ammonium base or salt of a copolymer of a vinyl - alkyl substituted, nitrogen - containing heterocyclic compound, in which one of the hydrogen atoms of at least one alkyl group has been replaced by a tertiary amine group, and an organic compound containing more than one unsaturated group and which copolymer contains at least one quaternary ammonium group per heterocyclic unit may be made by (1) copolymerizing a vinyl-alkyl substituted nitrogencontaining heterocyclic compound and an organic monomer containing more than one unsaturated group, and then subjecting the resulting copolymer to halogenation, amination and quaternization, or by (2) directly copolymerizing a quaternized salt of the above heterocyclic compound with the organic monomer.  In (1) the halogenation, amination, and quaternization steps may be carried out in any order provided that amination is subsequent to halogenation.  The polymerization may be effected in aqueous emulsion or organic solvent in the presence of a polymerization catalyst. Heterocyclic compounds mentioned are 2-methyl-5-, 2 - ethyl - 5 - , 3 - methyl - 5 - , 2,3 - dimethyl - 5 -, 2 - methyl - 3 - ethyl - 5 - vinyl pyridine, and vinylpyridines substituted in the ring with other alkyl groups such as propyl, isopropyl, butyl, isobutyl or octyl. The organic monomer may be di-, tri-, or tetravinyl benzene, divinyl toluenes, xylenes, naphthalenes or diphenyls, divinyl sulphone, divinyl ketone, vinyl maleate, vinyl acrylate, vinyl methacrylate, vinyl ethacrylate, divinyl oxalate, divinyl maleate, divinyl malonate, divinyl succinate, diethylene glycol dimethacrylate, ethylene glycol dimethacrylate, diethylene glycol diacrylate, glycerine dimethacrylate, ethylene glycol diacrylate, or divinyl acetylene.  The halogenation step, i.e. chlorination or bromination, is preferably effected in an inert non-aqueous solvent for the copolymer, e.g. carbon tetrachloride or glacial acetic acid, in the presence of ultra-violet light. The amination of the halogenated copolymer is achieved by reaction with a t.-amine or t.-alkanolamine in aqueous or non-aqueous solvents.  Specified amines are triethyl and tripropyl amines, dimethylethylamine, diethylcyclohexylamine, diphenylethylamine, benzyldimethylamine, and diethylethanolamine. The quaternization may be effected in an aqueous or non-aqueous solvent.  Quaternizing agents mentioned are ethyl chloride, bromide and iodide, dialkyl sulphates, epichlorohydrin, methyl toluene sulphonate and methyl benzene sulphonate.  Suitable polymerization catalysts are oxygen, benzoyl peroxide, lauroyl peroxide, di-(t.-alkyl) peroxides, and potassium persulphate.
Patent GB-220807-A (GB)
Title: A process for the production of ammonia
IPC: C01C1/02
Filed: 1923-08-20
Abstract: 220,807. Nelson, W. A. Aug. 20, 1923. Ammonia.-Ammonia is produced by bringing air and moisture into contact with a mixture of a clay such as bentonite and carbon at a temperature suitable for the production of ammonia, such as 460-1000‹ C. and cooling the product so us to condense the ammonia with the moisture present to obtain an ammonia solution. The moisture may be present in the air or in the clay or may be added separately. The clay and carbon may be mixed in the proportion of 3 parts of bentonite to one part of gas carbon, the mixture being made into balls or cylinders which are heated for instance in an electric furnace in a current of air. The balls of material 12 are heated by a resistance 6 wound about the furnace tube 5 which is enclosed in a jacket 7 of insulating material. A sleeve 8 fits within the tube 5 and carries a head 9 adapted to be bolted to the furnace body. Air which may be moistened and preheated is supplied by a pipe 13 and the escaping gas is cooled in a condenser 15, ammonia, solution collecting in a vessel 16. Air is drawn through the apparatus by a pump 17.
Patent GB-649471-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04B1/26
Filed: 1948-08-11
Abstract: 649,471. Multiplex radio signalling. PHILIPS ELECTRICAL, Ltd. Aug. 11, 1948, No. 21135. Convention date, Aug. 14, 1947. [Class 40 (v)] In a television receiver, the sound channel intermediate frequency is derived from a harmonic of the local oscillator, the vision I.F. being derived in the normal way from the same oscillator. In one embodiment, Fig. 1 (not shown), the mixer valve has two tuned seriesconnected anode transformers, one tuned to the vision I.F. and feeding the I.F. amplifiers detector and reproducing tube, and the other tuned to a frequency equal to the difference between the sound carrier frequency and the second harmonic of the local oscillator frequency. In a modification, the frequency changer 3 is connected to the carrier amplifier 2 and local oscillator 4, the vision I.F. being taken from transformer 5. The circuit 6 is tuned to a frequency equal to the difference between the sound carrier frequency and that of the local oscillator and feeds a further frequency changer 14 also supplied with the output from oscillator 4. The output I.F. circuit of the frequency changer 14 is responsive to a frequency equal to the difference between that of the sound carrier and that of the second harmonic of the local oscillator, and is connected to I.F. amplifier and detector 11, low-frequency amplifier 12 and loudspeaker 13. Numerical examples are given in the Specification and the invention is stated to be particularly applicable to arrangements in which an existing sound receiver is used to provide the sound I.F. amplifier and subsequent receiver circuits.
Patent GB-1432697-A (GB)
Title: Optically coupled semiconductive switching devices
IPC: H01L31/167
Filed: 1973-05-04
Abstract: 1432697 Optically-coupled semi-conductor devices STANDARD TELEPHONES & CABLES Ltd 25 April 1974 [4 May 1973] 21241/73 Heading H1K A light-emitting mesa diode (LED) is mounted on and optically coupled to pnpn switch via an intervening layer 32 of light transmissive, electrically insulating material. The material of layer 32 may be a glass or plastics material, suitable examples being given, and in both cases a preferred form is a preform of one material coated on either side by layers of lower melting point material to facilitate bonding between the LED and the pnpn switch. The assembly is preferably mounted on a metallized alumina wafer 30 bonded to a heat sink 31 by metallization 34. Other areas of metallization on the wafer 30 are used as terminal pads for electrodes on the upper surface of the assembly. For full wave switching two such assemblies may be mounted on a common heat sink, with the LED's in series and the pnpn switches in inverse parallel. The LED mesa is preferably grown by liquid phase epitaxy of GaAs using Si as an amphoteric dopant, the deposited conductivity type charging from n type to p type as the deposition temperature falls through the range 910-880 C. The LED is provided with electrodes 24 of Au/Sn and 25 of Au/Sn on Au/Zn. The mesa form is manufactured conventionally. In a modification the mesa walls are covered with glow discharge deposited silica or silicon nitride as passivation and in order to reflect emitted light internally. The pnpn switch is a Si device, optionally provided with a gate electrode 12 in ddition to the optical triggering means. The LED is mounted, via layer 32, in a window in the Au on Ni cathode 18. Preferably the thickness of the cathode region 17 is reduced beneath the window. Exposed junctions of the pnpn switch are protected with silicone resin and the assembly is encapsulated in silica-loaded epoxy resin.
Patent GB-355898-A (GB)
Title: Improvements relating to the mandrels of tube-forming apparatus
IPC: B21C1/30
Filed: 1930-07-14
Abstract: 355,898. Cupping. EVANS, W. E., 27, Chancery Lane, London.-(Demag Akt.- Ges. ; Duisburg, Germany.) July 14, 1930, No. 21332. [Class 83 (iv).] The drive for the mand r e 1 o f tube-forming benches comprises two or more pinions engaging a rack connected to the mandrel, and co-operating therewith simultaneously. A rack 2 joined to a mandrel 1 is driven by pinions 3, 4 from a motor 5 through gearing 6, 7, 8, spindles 9, 10, and flexible couplings 11, the spindles being sufficiently elastic to enable power to be transmitted always from both pinions to the rack. Alternatively, each pinion is driven from a separate motor.
Patent GB-575507-A (GB)
Title: Improvements in or relating to thread guiding mechanism for winding in bobbin spinning apparatus
IPC: B65H57/00
Filed: 1943-12-20
Abstract: 575,507. Thread guides for bobbin spinning apparatus. VANDERHOOVEN, C. C. Dec. 20, 1943, No. 21367. Convention date, July 22, 1942. [Class 120 (ii)] Thread guiding mechanism for rewinding in bobbin spinning apparatus comprises a reciprocating member 4, movable in a plane above and parallel to the bobbin axis, and a glass &c..guide 3 pivotally suspended from the member 4 and freely movable in an arc transversely to the bobbin axis, the guide normally hanging out of contact with the bobbin 2 but being movable into contact therewith, during spinning, by the tension in the thread alone. The guide 3 comprises a shank 6 with an enlarged head 7 removably held in a split holder 5 pivoted at 12 to the traverse member 4, and a horn 9 forming a groove 10 for confining and guiding the thread. A button 8, formed on the guide, bears on the bobbin. A guide mechanism, as above, may be positioned between two bobbins and in this case the guide shank 6 is furnished with a second horn 16, groove 18 &c., oppositely arranged so that the guide may be moved into contact with the second bobbin when the first is completed. In a modification, Fig. 6, the guide is formed with a pivot piece 13, a U-shaped thread-guiding groove 14 and a horn 15.
Patent GB-1426934-A (GB)
Title: Self-propelled underwater bodies
IPC: B63C11/40
Filed: 1973-05-04
Abstract: 1426934 Underwater vessels KAWA-SHIMA KOKI CO Ltd 4 May 1973 21367/73 Headings B7A and B7V [Also in Division G2] A self-propelled underwater body comprises a liquid-tight housing 2a having a plurality of outlets connected to a pump 7 driven by a motor 7a. The pump 7 and motor 7a are connected to the housing 2a and may be within it. Valves 8, 9, 10 are provided for controlling water flow to the outlets; the valves :may be controlled from the surface via cable 5 or by an operator within the housing. Ejection of water through outlet 8a causes forward motion; 8b, 8c cause rearward motion 9a, 9b cause tilting in a vertical plane and 10a, 10b cause rotation in a vertical plane. Housing 2a may contain a camera while housings 1b may contain lamps.
Patent GB-618531-A (GB)
Title: Improvements in condiment receptacles
IPC: A47G19/24
Filed: 1946-07-18
Abstract: 618,531. Powder distributers. HOLLAND, C. E. July 18, 1946, No. 21570. [Class 18] A condiment dispenser having compartments 2, 3 with separate outlets, e.g. for pepper and salt, has guard plates 10, 11 in the salt compartment to prevent accidental discharge of the salt when the container is shaken to obtain a discharge of pepper. The guard plate 11 also functions to direct salt from the upper to the lower end of the container without accidental spillage through the aperture 9. The container may be moulded in two halves, e.g. of thermoplastic material, adhesively or otherwise joined together at their edges. According to the Provisional Specification, the dispenser may have filling openings in the base or it may have a removable lid with a guard plate portion co-operating with a guard plate portion carried by the receptacle.
Patent GB-1205462-A (GB)
Title: Improvements in or relating to safety belt buckles
Inventor: KELL JOHN
IPC: A44B11/25
Filed: 1968-06-05
Abstract: 1,205,462. Buckles. KANGOL MAGNET Ltd. 4 June, 1969 [5 June, 1968; 29 April, 1969], No. 26812/68 and 21867/69. Heading E2A. A safety belt buckle comprises a part 10 movable in a first direction into engagement with a part 12 having a latching element 28 movable in a second direction perpendicular to the first direction between a latching and non- latching position, and a push-button 40 arranged to engage the latching element whereby when the pushbutton is depressed the latching element is moved to the non-latching position thereof; the push button is spring-biassed into a non-depressed position and so arranged that the latching element is movable into its non- latching position without causing movement of the push button As shown, the latching plate 28 is biassed to the latching position by a spring 30 and has wedge-shaped protuberances 32, 34 over which ride over L-shaped tongues 18, 20 of the part 10 whereby the plate firstly rotates about a pin 26 against the action of the spring and then returns to the initial position thereof so that the tongues are engaged behind the inner edges of the protuberances. Depression of the push button 40 against the action of spring 48 displaces the plate 28 to allow disengagement of the parts 10, 12. A part 24 pivotal on the pin 26 includes slots 52 in which is mounted a bar 50 around which the belt 16 is disposed and engaged by an edge 54 integral with the part 24; by lifting the part 24 to disengage the edge 54 from the belt the length of the belt may be adjusted. In a modification, the part 60, or tongue, has a plastics insert 64 to prevent chafing of the belt 62, and the latch plate 68 which is pivotally mounted on a rod 70 has a limb 72 formed with lugs 76 engageable by holes in the tongue and by a push button 86 having side arms engaged around the rod 70; a spring 100 has three pairs of projecting limbs 106, 110 and 108, respectively engaging the push button to urge button in an anticlockwise direction, the underside of the plate 68 to rotate the plate in an anticlockwise direction also, and tongue 60 to eject the latter upon depression of the button. (For Figures see next page)
Patent GB-1003267-A (GB)
Title: A shovel excavator
IPC: E02F3/42
Filed: 1963-05-31
Abstract: 1,003,267. Shovel excavator. UNICOUSKE STROJIRNY, NARODNI PODNIK. May 31, 1963 [June 5, 1962], No. 21883/63. Heading E1F. In a shovel excavator excavated material is conveyed from the backless shovel 21 of the excavator by a conveyer 17 forming the base of the shovel through the shovel-supporting boom 16 to be discharged on to a chute 20 leading to a hopper 12 for delivery to a discharge conveyer 3 mounted on a turntable 2 supported on a self-propelled chassis 1. The hopper-supporting framework 5 is erected on a turntable structure 4 mounted on the turntable 2. The boom 16 is supported on the framework 5 by jib 14 and structure 18, 19 of which the component 19 is slidable in trunnions rotatable in the framework 5 from a rotatable member 6 at the top of which the outer end of the discharge conveyer 3 is supported.
Patent GB-671291-A (GB)
Title: Improvements in or relating to control lever arrangements for regulating the stitches in sewing machines for zigzag stitching
IPC: D05B27/22
Filed: 1950-09-05
Abstract: 671,291. Sewing machines. SOC. PER AZIONI FRATELLI BORLETTI. Sept. 5, 1950 [April 7, 1950], No. 21898/50. Class 112. Needles, vibrating laterally.-In a machine having means for varying the amplitude of lateral vibration of the needle and the position about which the vibration takes place the two adjustments are controlled by levers 5, 1 respectively passing through slots in a plate 4 in the lower part of the standard of the machine, so that they are close together and in a convenient position. In the embodiment shown, a third lever 9, for' putting the feed into and out of action, is grouped with the other two in the same way; the levers 1, 9 are resilient, to be held in position by engagement with notches in the sides of their slots, and the lever 5 has a screw knob to hold it in the required position by frictional engagement with the plate.
Patent GB-1141332-A (GB)
Title: Process for the production of acetic acid by catalytic gas phase oxidation of butenes in the presence of antimony vanadate catalysts
IPC: C07C51/25
Filed: 1966-05-18
Abstract: 1,141,332. Acetic acid. CHEMISCHE WERKE HULS A.G. 18 May, 1966 [19 May, 1965], No. 22061/66. Heading C2C. [Also in Division C1] Acetic acid is prepared by the gas phase oxidation of n-butenes in the presence of an antimony vanadate catalyst at between 250 and 400 C. Cis-n-butene-(2), trans-n-butene-(2) and n-butene-(1) may be used and pure oxygen or air may be the oxidizing agent. The antimony vanadate may be prepared by precipitation methods (see Division C1).
Patent GB-433092-A (GB)
Title: Improvements in and relating to prepayment mechanism for gas meters and the like
IPC: G07F15/00
Filed: 1934-07-30
Abstract: 433,092. Prepayment mechanism for meters. ALDER & MACKAY, Ltd., and PEET, A., Stewart Terrace, Edinburgh. July 30, 1934, No. 22236. [Class 27] In prepayment meter mechanism operable at will by two or more denominations of coins, such as pennies and shillings, two similar differential mechanisms 11, 12, 13, Fig. 1, and 23, 29, 32 are arranged coaxially with respect to two measuring out wheels 2, 3 for pennies and shillings respectively and are geared together by a lay shaft 17, the mechanisms being mounted on either side of the middle plate 7 of three supporting plates 6, 7, 8. The wheel 2 driven, when a penny is inserted, is fixed to a shaft 4 having a pinion which drives through reduction gear 18, 19 a wheel integral with the crown sun-wheel 11. The shillings wheel 3 is fixed to a boss 20 carrying the other sun-wheel 12. The planet wheels 13 are mounted in a cage 14 having peripheral teeth 15 engaging a pinion 16 on the shaft 17. Another pinion 21 on the shaft 17 drives the planet cage 22 of the second differential, the sun-wheel 29 of which is geared to a meter driven worm shaft 31. When the cage 22 is rotated, the planet wheels 32 rotate the other sun-wheel 23, the boss of which extends through the plate 8 and has a wheel 24 driving a wheel 25. A pin 33, Fig. 2, on the wheel 25 engages the forked end of a lever 35 controlled by a spring 36, this lever having a pin to engage the forked end of a valve lever. Indicators.-An indicating pointer 49 is mounted at 47 and carries an arm 50 formed with rack teeth meshing with a pinion 52 integral with the gear 25. Coin-slit closing-devices.-When the maximum number of coins have been inserted at a time, the pin 33 engages a hooked arm 45 to rock a shaft 44 carrying an arm 46 which closes the discharge slot 43 for the coins, thereby preventing the insertion of further coins until some gas has been consumed.
Patent GB-780955-A (GB)
Title: Improvements in or relating to electric calculating machines
IPC: G06F7/42
Filed: 1954-07-30
Abstract: 780,955. Digital electric calculating-apparatus. EL-RE-MA SOC. ANON. PER LO SFRUTTAMENTO DI BREVETTI. July 30, 1954 [July 31, 1953], No. 22261/54. Drawings to Specification. Class 106 (1). An electric circuit for performing the addition or subtraction of two numbers each registered in a bi-quinary code on two groups of contacts is characterized in that each denomination comprises two current inlets and two current outputs, the current passing from an inlet to an outlet via a winding of a relay for registering the result of the calculation. The circuit described is the basic adding circuit employed in the machine described in Specification 780,954 which is referred to, but the description uses different references. Specification 780,953 also is referred to.
Patent GB-1025504-A (GB)
Title: A high voltage switch
IPC: H01H3/36
Filed: 1964-05-29
Abstract: 1,025,504. High voltage switches; actuation of switches. S. & C. ELECTRIC CO. May 29 1964 [Oct. 30, 1963], No. 22261/64. Heading H2B. A disconnecting switch has a pair of cooperating switch-blades carried by a pair of insulator stacks rotatably mounted on an elongated support 3, an operating arm for each stack, a crank-shaft 44 rotatably mounted intermediate the stacks, a pair of cranks 38, 39 extending from the shaft and a pair of links interconnecting the operating arms and the cranks. The portions 49 of the shaft 44 on opposite sides of the cranks 39 are offset to permit rotation of the shaft through slightly more than 180 degrees so that the cranks and links form an overset toggle to lock the mechanism in both open and closed position. Associated with the shaft 44 is a control mechanism 75 which includes a pawl 92 pivoted at 93 on an arm 88 secured to the shaft 44. When the shaft 44 is turned clockwise to open the switch, as shown in Fig. 24, the pawl 92 rides over ratchet teeth 84 but is effective to prevent any reverse rotation until the shaft reaches the fully open position. In this position a cam member 85 turns the pawl 92 so that a pin 95 enters a slot 112 in a plate 107 on the arm 88 to latch the pawl clear of the teeth 84. The movement of the pin 95 releases a pawl 113 so that when the shaft 44 is turned anti-clockwise to close the switch, the pawl 117 rides over the teeth 84. Should there be any reversal in the rotation of the shaft during this closing operation, the pawl 117 abuts a tooth 84 and causes the plate 107 to move and release the pawl 92 which moves into engagement with the teeth 84 and raises the pawl 117 from engagement with the teeth 84. It is now necessary to restore the mechanism to the fully open position before any attempt at reclosing can be made.
Patent GB-837080-A (GB)
Title: Production of aqueous dispersions of gluten and production of dry vital gluten therefrom
IPC: A23J3/18
Filed: 1958-07-11
Abstract: A stable aqueous dispersion of wet gluten derived from wheat flour is produced by admixing such wheat gluten with an aqueous solution of formic acid having a pH value of from 2 to 4.5.  The aqueous solution of formic acid may contain an alkali metal formate, e.g. sodium formate, which may be present in the molar ratio formate: formic acid of from 1:15 to 1:1. Dry vital gluten derived from wheat flour may be obtained by dispersing the aqueous dispersion in the form of droplets in heated air or other inert gas, thereby heating it to a temperature not exceeding 120 DEG  C., the drying being completed within 5 seconds.
Patent GB-1502219-A (GB)
Title: Sliding patty griller
IPC: A47J37/04
Filed: 1976-05-28
Abstract: 1502219 Grilling NPI CORP 28 May 1976 22352/76 Heading A4D A griller for meat patties comprises upper 13 and lower 8 heated platens which overlap but are offset one with the other, a foraminous support 25 extending from the lower platen under the upper platen, and a conveyer 16 with pusher bars 19 arranged to slide patties over the front portion of the lower platen, then between the platens, and then over the support 25 below the rear portion of the upper portion. As shown, the griller includes radiant gas heaters 11 which are in addition to or instead of the electric heating coils 12 in the platens, and a fat collecting container 27 positioned below the foraminous support 25. Bars 23 hang from a pivot 24 pressing the patties into contact with the lower platen 8 and a tray (draining into the container 27) collects the cooked patties. The conveyer 16 comprises a pair of side chains running on sprockets 17, 18 and the transverse pusher bars 19 which may be of rectangular cross-section to scrape against the platen surfaces Fig. 3, (not shown), or are of circular cross-section with a replaceable paper covering (33), or include a scalloped plate (21, 37) shaped to the patties Figs. 2, 5, (not shown).