baber/WOPTO huggingface dataset:
Patent GB-1022931-A (GB)
Title: Method for polymerizing ethylene or a mixture of ethylene and an alpha-olefin and catalytic composition therefor
IPC: C08F10/02
Filed: 1964-05-21
Abstract: A polymerization catalyst comprises (A) a compound of the formula AlR1mX3-m where R1 is an alkyl, aryl, aralkyl, alkylaryl or cycloalkyl, X is a halogen atom, and m is not less than 1 and not more than 2, (B) a compound of the general formula R11SOnY where R11 is selected from halogen, hydroxyl, and alkyl, aryl, aralkyl, cycloalkyl radicals and substituted radical, Y is a halogen atom, and n is 1 or 2, and (C) is a vanadium compound. The catalyst is used to polymerize ethylene, and mixtures of ethylene and other olefins by conventional "low-pressure" techniques.  The other olefin may be propylene, butene-1, pentene-1, hexene-1, heptene-1, octene-1, 3-methylbutene-1, 4-methylpentene-1, 4-methylhexene-1, 4-phenylbutene-1, styrene, p-methylstyrene, vinylcyclopentane, or vinylcyclohexane. Compound (B) may be benzenesulphonyl chloride, bromide, or iodide, benzenesulphonyl chloride, toluene-, xylene-, benzyl-, alphanaphthalene-, m- or p-chlorobenzene-, p-bromobenzene-, p-nitrobenzene-, p-aminobenzene-, 2-aminotoluene-, 4-aminophenol-beta-naphthylamine-, 1,2-dioxyanthraquinone-, cyclohexane-, methylcyclohexane-, propane-, ethane-, or chloroethane-sulphonyl chloride, naphthol-2-disulphonyl chloride-(3,6), sulphuryl chloride, thionyl chloride, thionyl bromide, or chlorosulphonic acid.  The Specification contains an extensive list of (A) and (C) components, those exemplified are ethylaluminium di-chloride, ethylaluminium sesquichloride, diethylaluminium chloride, vanadium tetrachloride and vanadyl trichloride.  The molecular weight of the polymer may be controlled by addition of hydrogen. The polymerization is effected in an inert hydrocarbon or halogenated hydrocarbon medium. The polymer is recovered by conventional techniques such as addition of water, acids, alcohols, ammonia, and chelating agents.  The polymers may be cured using a mixture of dicumyl peroxide and sulphur.
Patent GB-1503782-A (GB)
Title: Moulding tools for moulding sheet materials
IPC: H05K5/06
Filed: 1975-05-17
Abstract: 1503782 Sheet moulding; cutting FERRANTI Ltd 13 May 1976 [17 May 1975] 21059/75 Heading B5A A sheet of thermoplastic material is vacuum formed over a tool to have the shape shown in Figs. 2 and 3 with a series of spaced wavy transverse channels 15 and holes 22. The shaping tool comprises a series of wavy elements held in spaced relationship by spacing members in a rectangular frame. Blisters are formed during the vacuum forming and are cut to form the holes 22. In use the sheets are used in pairs to locate opposite edges of printed circuit boards 16. Fig. 6 shows a tool for the removal of the blisters. The tool is positioned with leg portions 45 straddling the blisters and when drawn towards the user blade 43 removes the blisters.
Patent GB-352737-A (GB)
Title: Improvements in or relating to rotary brushes
IPC: A46B13/00
Filed: 1930-07-12
Abstract: 352,737. Rotary brushes. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Adams-White Brush Co. ; 53, Wareham Street, Boston, U.S.A.) July 12, 1930, No. 21185. [Class 19.] A rotary brush is built up of metal discs 20, Fig. 3, clamped together on a tube 18 and holding between them tufts of bristles 14 accommodated in bristle-holding grooves 22, Fig. 5. The backs of the discs have disc-engaging teeth. The discs may be of aluminium or other metal stamped out to the requisite shape. The stamped formation provides corrugations 22, the backs of which project as teeth to interlock with an adjoining plate. Any number of spacing discs 20<1>, Fig. 7, may be used facing either way, or the spacing may be accomplished by using plates with simple uniform corrugations. The density of the bristles may be varied by omitting bristles from some of the sockets, and by introducing more or less spacing discs. The discs are held between end collars 28, Fig. 3. The bristleholding grooves 22 have necks 40, Fig. 5, which hold the bristles when the discs are compressed. Cement may be used, if desired. When the brush is worn, the discs can be disassembled and reset with fresh bristles.
Patent GB-982688-A (GB)
Title: Steel shelving
IPC: F16B12/30
Filed: 1962-06-01
Abstract: 982,688. Shelving structures; furniture joints. S. A. HIRSCH MANUFACTURING CO. June 1, 1962 [April 2, 1962], No. 21189/62. Headings A4B and A4W. Metal shelves 10 having side and end flanges 18 and 20 are notched at their corners to engage roughly U-section uprights 12 at a position corresponding to apertures 42 at the junctures of walls 36 and 38 with wall 40. Bolts 46 are screwed through brackets 48 whose tips 50 enter apertures 34 to flanges 18 and 20, the shelves being clamped to uprights 12 by this means, and that ribs 44 dent edges of the notches and form anti-slip recesses. A snap-in strip 60 engages lips 58, 56 and conceals bolts 46. Fibre or hardboard strips may be inserted into the channel flanges on shelves 10. An alternative form has L- section uprights 74 with a channel 84 in the wall 78 apertured to receive bolts which are screwed into T-shaped brackets 98 releasably held in apertures in the flanges 64, to clamp the shaft to the uprights. Further shelves and uprights may be secured beside both forms of the structure. The structure may be dismantled, the shelves rested bottom to bottom and the uprights packed diagonally.
Patent GB-503219-A (GB)
Title: Sadiron
IPC: D06F75/26
Filed: 1937-07-30
Abstract: 503,219. Thermal switches. DEHN, F. B. (Chicago Flexible Shaft Co.) July 30, 1937, No. 21199. [Class 38 (v)] The temperature of an electric iron is regulated by means of a main bimetallic strip 36 which engages a movable contact arm 57 so as to move contacts 67 away from fixed contacts 71 ; a second bimetallic strip 81 compensates for the customary excess temperature of the iron at its first-heating cycle and a third bimetallic member 65 carrying the contacts 67 serves to reduce the frequency of make and break. The contact arm 57 is pivoted at 58 to an arm 46 and carries at its right-hand end a U-shaped member 61 on which is loosely pivoted the bimetallic bridging member 65. The arm 46 is pivoted at its right-hand end and its position is adjusted, for temperature setting, by rotation of a thumb wheel 114 arranged in the handle of the iron and fixed to a gear-wheel 106 engaging a rack member 105 connected at its lower end to the arm 46. As the temperature of the iron rises the bimetallic strip 36 rises, Fig. 8, and rotates the arm 57 in a clockwise direction to break the circuit. The iron then cools down and 'the strip 36 moves so as to allow the circuit to be remade again. When the current is first switched on, the temperature of the strip 36 lags unduly behind that of the sole plate so that a higher temperature of the sole plate would be needed to open the contacts were it not that this is compensated for by the strip 81 which when cold lies flat on the arm 57 and has a pin 82 projecting through the arm 57 and adapted to be engaged by the strip 36 before the latter engages the arm 57. When the switch is closed, current flows through the bimetallic strip 65 causing it to curl upwards, Fig. 8. This means that a greater movement of the strip 36 is then necessary to break the circuit so that the frequency of make and break is diminished.
Patent GB-580114-A (GB)
Title: Improvements in or relating to transmitting or receiving aerials
IPC: H01Q21/24
Filed: 1943-05-21
Abstract: 580,114. Wave guides. CORK, E. C., and MANIFOLD, M. BOWMAN-. May 21, 1943, No. 21302/44. Divided out of 580,090. [Class 40 (v)] A transmitting or receiving aerial comprising a hollow conductor 10 is provided with a sleeve member 17 surrounding the open end 11, the sleeve being open at its forward end and shorted to the hollow conductor 10 at its rear end. The length of the sleeve 17 should be equal to a quarter wavelength at the operating frequency. The sleeve prevents the setting up of currents on the rim or external surface of the conductor 10, which currents would have the effect of distorting the directional diagram. Specifica. tions 580,090 and 580,115 are referred to.
Patent GB-1521019-A (GB)
Title: Process for the production of a hydraulic mortar or concrete
IPC: C04B18/04
Filed: 1977-05-20
Abstract: 1521019 Slag-based mortar or concrete SOLVAY & CIE 20 May 1977 [24 May 1976] 21326/77 Heading C1H In a process for the production of an hydraulic mortar or concrete by mixing together an hydraulic binder (comprising a metallurgical slag), water, a slag-activating agent, and any supplementary ingredients, e.g. filters and additive materials, the activating agent and water employed are constituted, at least in part, by a waste aqueous suspension taken from a distillation column employed in the ammonia soda process, preferably in a concentrated form containing 20 to 60% by weight of solids. The waste products may comprise aqueous solutions of calcium chloride and sodium chloride containing in suspension various insoluble compounds, especially calcium aluminate, calcium silicate, calcium carbonate and calcium sulphate. Some silica, iron oxides and calcium hydroxide may also be present. Tables 2, 7, 8 and 10 of the Specification set forth the chemical composition of some sludges from soda works that may be used. The slag may be a granulated blast furnace basic slag ground to a fineness of 1000 to 8000 Blaines. Fillers include sand, fly ash, Portland cement, gravel, fibres, and synthetic polymer fibrids together with a polymeric wetting agent. Specified conventional additives may be included. A process for the production of a non-cellular rigid constructional material involves pouring the hydraulic mortar or concrete into a shuttering and allowing the mortar or concrete to set and harden. Preferred compositions comprise 75 to 1000 parts (by weight) of slag and 200 to 1500 parts of siliceous filler mixed with that amount of the waste aqueous suspension which contains 100 parts of solids, the resulting mixture being made up with any necessary additional amount of water to form a mixture containing 100 to 400 parts of water. A process for the production of a cellular rigid constructional material involves forming a shaped body using the hydraulic mortar, allowing the shaped body to expand and set, and thereafter baking and autoclaving. The expansion and setting of the mortar may take place at an elevated temperature of 40 to 100 C., and the autoclaving at 100 to 200 C., in the presence of steam, under a pressure of 5 to 20 kg./cm.<SP>2</SP>. Preferred compositions for the cellular mortar comprise 10 to 70% (by weight) of the suspension solids, 0À03-1% of pore-forming agent (hydrogen peroxide, or powdered aluminium or zinc) and 15 to 80% slag, the remainder of the solids, typically 10-60%, being made up by the siliceous filler and any additive included, and the total amount of water present being 30 to 200% of the total weight of the solids.
Patent GB-151454-A (GB)
Title: Improvements in and relating to starting mechanisms for internal combustion engines
IPC: F02N15/06
Filed: 1919-09-02
Abstract: 151,454. Bethenod, J. Sept. 2, 1919. Turning-gear.-In an electric starter, a coupling between the engine and the starting-motor is brought into engagement by the displacement of an element of magnetic material attracted by the field poles of the motor. In the form shown in Fig. 1, the pinion 3 is moved into gear with an engine pinion 4 by a fork 5 on a rod 6 entering a passage 8 in the field pole 1. The pinions 3, 4 may have helical teeth as shown, or the pinion 3 may be a free-wheel pinion with straight teeth. In a modification, the rod 6 ends in a plate forming a magnetic bridge between adjacent polepieces.
Patent GB-881018-A (GB)
Title: Improvements in electrical devices for automatic impedance matching
IPC: H03H7/40
Filed: 1959-06-23
Abstract: 881,018. Automatic impedance control systems. TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES. June 23, 1959 [June 26, 1958]; No. 21495/59. Class 38 (4). In an automatic impedance matching system, the impedance of a load is matched to that of a source by a # network comprising a series and a shunt inductances having tappings positioned by electric motors responsive to the output from a phase discriminator and a modulus discriminator. As shown, Fig. 1, a feeder F is matched to an antenna Z via a # network approximately adjusted by an inductance L3 and capacitor C4 selected by switches X3, X4 in response to a change in the pilot frequency. On change in frequency, a short-circuiting slider X1 of an inductance L1 is positioned at A1 and then moved by a motor M1 in response to the output voltage of a phase discriminator D1. A slider X2 of an auto-transformer L2 is positioned at A2 on change in frequency and then moved by a motor M2 in response to the output voltage of a modulus discriminator, detecting the ratio between the characteristic impedance of the feeder and the impedance looking towards the # network. When the slider X2 reaches point A3 before a balance is effected, a contact c energizes a relay K retaining a contact k shortcircuiting the slider X2 to point A3 and a contact c<SP>1</SP> reverses the motor M2 so that slider X2 moves towards A2 to effect a balance. In a combined ratio and phase discriminator, Fig. 5, a common element is a current transformer L5. The ratio discriminator comprises a capacitive voltage divider C6, C7 feeding a resistor R3, the voltage V4 across which is compared with a voltage V1 across a resistor R1 shunting the secondary of the current transformer L5. A relay Z2 is actuated by the out-of-balance voltage and controls the motor M2 through a contact z2. The phase-discriminator comprises switched capacitors C5 and coupled inductances L6, L7, the voltages across which are equal in value and opposite in phase and are each combined with the voltage V1, which is in quadrature at balance. The resultant voltages energize a relay Z1 controlling the motor M1 through a contact z1 Specifications 608,265, 852,253, U.S.A. Specification 2,742,618 and French Specification 1,145,191 are referred to.
Patent GB-190198-A (GB)
Title: New process of retting degumming or like treatment of vegetable and animal fibres
IPC: D01C1/02
Filed: 1922-05-15
Abstract: Relates to the de-gumming or like treatment of vegetable fibres, such as china grass (ramie) and flax, and the de-greasing of wool, silk, and other animal fibres.  The material is boiled in an open tank in the presence of soap, with, if desired, the addition of a small quantity of paraffin.  Water is then admitted to the bottom of the tank to cause the separated resinous and vegetable matter to pass away through an overflow outlet.  After a further boiling, a small quantity of petrol, benzol, &c. is admitted and boiling is continued until digestion is completed; fresh water is then admitted at the bottom to wash away by overflowing, resin, petrol, &c. floating on the top, and the fibres are removed from the tank in the usual way.
Patent GB-358608-A (GB)
Title: Improvements in electric arc-welding apparatus
IPC: B23K9/12
Filed: 1930-07-16
Abstract: 358,608. Uniting by fusion. DORMAN, LONG, & CO., Ltd. and FREEMAN, F. R., 55, Broadway, Westminster. July 16, 1930, No. 21548. [Class 83 (iv).] In an arc welding apparatus of the kind in which the electrode is carried in a holder fed towards the work as consumed, each electrode is secured in its holder at such an angle to the direction of movement of the holder that the point of the electrode moves along the weld without relative longitudinal movement between the holder and work. In a multiple electrode apparatus a bar A carrying holders B for inclined electrodes C is fed by rotating screw-threaded rods E, the electrodes passing through guides G carried by a slide F which is traversed longitudinally by gear in synchronism with the feed gear. In a modification the electrodes may be guided by a slotted bar. The feed may be adjusted by varying the feed of the holders or the inclination of the electrodes and their distance apart may also be adjusted. For this purpose the holders may be pivoted to split blocks J clamped to the bar, and the guides adjustably fixed by T- headed bolts K in the slide F. The electrode guides may be operated by a cam worked from the same source of power to oscillate the electrodes laterally. A duplicate set of electrode holders B<1> and electrodes C<1> may be provided, the frame H being rotatable on trunnions I, so as to bring the second set of electrodes into position when the first set is consumed. In this case the electrodes may be oscillated laterally by rocking the apparatus on the trunnions, lateral clearance being provided between the electrodes and their guides. If the electrodes are bare, the guides may be made of refractory insulating material. Each electrode holder may be fitted into a solenoid controlled head so that each arc is controlled and struck by its own current.
Patent GB-1270838-A (GB)
Title: New fluorine-containing surface-active compounds and uses thereof
Inventor: HUTCHINSON JOHN
IPC: C09K23/00
Filed: 1969-04-28
Abstract: 1,270,838. Fire fighting foams. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 March, 1970 [28 April, 1969], No. 21584/69. Heading ASA. [Also in Division C2] Fire-fighting foams contain as foaming agents compounds of the formula: where Y is a partially substituted aromatic nucleus having at least one substituent which is a fully fluorinated alkyl group containing 2-20 carbon atoms and X is a hydrophilic group attached to the SO 2  group by an oxygen or nitrogen atom of the hydrophilic group. Other foaming agents and/or surfactants may be present, e.g. oligomers of tetrafluoroethylene as described in Specification 1,270,661, proteins, celluloses, soaps, or sulphate or sulphonate surfactants, and also foam-improvers e.g. cellulose derivatives, hydrolysed proteins, glues, or polyalkylene compounds. To generate the foam the aqueous solution may be blown with N 2  or a fluorocarbon, or merely whisked. The compositions and foams therefrom are compatible with dry. powder extinguishants, including NaHCO 3 , KHCO 3 , KCl, K 2 SO 4 , ammonium phosphate or those described in Specification 1,168,092. Examples 8-12 disclose fire-fighting foams of the invention under test.
Patent GB-572277-A (GB)
Title: Improvements relating to sealing devices between rotating and non-rotating members
IPC: F16J15/36
Filed: 1943-12-24
Abstract: 572,277. Stuffing-box substitutes. WILKINSON, F. C. W., and CRANE PACKING, Ltd. Dec. 24, 1943, No. 21638. [Class 122 (v)] In a shaft &c. sealing device of the kind comprising a yieldable bellows member 1 having an end flange 2 engaging a bearing ring 5 urged against a cooperating sealing surface, rigid rings 4 support the bellows internally and externally against collapse and distension. The bearing ring may be pressed axially by springs 13 supported on rods 16 extending from a fixed member 7 into recesses 5a in the bearing ring. The collar 7 is secured on the shaft 6 by means of a split ring 8 and a wedging ring 9. Specification 572,278. is referred to.
Patent GB-1105506-A (GB)
Title: Improvements in or relating to forming presses
IPC: B21D22/12
Filed: 1965-05-21
Abstract: 1,105,506. Hydraulic presses. SAAB AKTIEBOLAG. 21 May, 1965 [29 May, 1964], No: 21699/65. Heading B5F. [Also in Division B3] A press for forming sheet metal 29 between a punch 25 and a pressure chamber movable relatively to the punch comprises a rubber &c. diaphragm 16 bounding the chamber and prevented from entering the clearance between a work-holder 26 and the wall of a bore 10 containing the chamber by a sealing ring 30 which engages the work-holder. A cylinder 3 forming the chamber is suspended resiliently by springs 9 on bolts 4 from a plate 1 mounted on the pressram. The work-holder 26 is supported on rods 27 biased upwardly but capable of downward movement during the pressing operation.. A ring 20 clamps the diaphragm against the borewall, and a vent passage 23, closed by a screw 22, opens into the chamber. The plunger 11 is sealed by a packing washer 14. A shoulder on the ring 30 engages a shoulder on the bore-wall, or the ring 30 may be retained by spring-pressed balls on the ring engaging a groove in the borewall. The ring may be a split ring.
Patent GB-382659-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone exchange systems
IPC: H04M3/60
Filed: 1931-07-30
Abstract: 382,659. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., WRIGHT, E. P. G., and HARTLEY, G. C., Connaught House, Aldwych, London. July 30, 1931, No. 21754. [Class 40 (iv).] A calling subscriber S1, Fig. 1, having failed to obtain a wanted number is connected by dialling the digit O to a supervisory operator who extends the calling line through her trunk circuit OLC to an auxiliary line circuit ALC similar to the subscriber's line circuit LC1. The wanted number is then again dialled and the connection further extended over a switch train LF1 .. F3, the operator remaining on the connection. If this second attempt is unsuccessful she may set up the call herself over her cord circuit OPC. In satellite systems, the supervisory operator may be at the main exchange, the switching over to the circuit ALC being effected by signalling over the junction, and the establishment of the call by the operator herself may take place over the circuit ALC or over a second junction. Fig. 2 shows the trunk circuit OLC in detail. When seized by a bye-path BP1, Fig. 1, relays L, B, LL operate sending ringing tone back to the calling party and lighting a calling lamp. When the operator plugs in, relays S, SS operate, releasing LL, but holding relays B, H. To connect the calling line to circuit ALC the operator applies booster battery to the b-wire operating relay SW over a rectifier R. If the call is successful, the operation of relay MR over wire M applies booster metering battery to wire H to effect metering. The operator may withdraw from the connection by taking down the plug, thus releasing relays S, SS, the connection being maintained over circuit ALC under the control of relay H and the outgoing hold wire. If the call is unsuccessful, the operator applies battery to the a-wire operating relay RS which releases SW so that a new connection may be set up over the cord. If the subscriber has hung up before the operator replies he may be recalled by the application of battery to the a-wire causing the operation of relay RR, which connects up ringing current. When the receiver is again removed, ringing is stopped by the insertion of resistance YC in the circuit of relay RR, and the removal of a short-circuit from the left-hand winding of sleeve relay S extinguishes the cord supervisory lamp.