baber/WOPTO huggingface dataset:
Patent GB-303568-A (GB)
Title: Improvements relating to grinding or crushing machines
IPC: B02C2/08
Filed: 1927-08-12
Abstract: 303,568. Burt, Boulton, & Haywood, Ltd., and China, F. J. E. Aug. 12, 1927. Crushers with gyratory heads; hollow cylinder and internal guided roller.-A grinding or crushing machine comprises two conical members a, b, or cylindrical members one within the other which are capable of movement relatively to each other, and the axes of which do not coincide. The head b is keyed on a driving shaft d which ia mounted in a bearing e pivoted at f so that the driving shaft is capable of a limited amount of universal rocking movement. The shaft d is provided with a gland g having a flexible cover piece h clamped to the gland and casing c. The head b is smaller than the inside of the casing a and is maintained in contact therewith by means of a member j, which forms part of a unit fixed to a second revolving shaft a<1>. A compression spring k surrounds the outer end of a rod l which passes through the 'hollow shaft a<1> and tends to displace the rod laterally with the result that a bell-crank m pivoted on a lug n presses against the inner end of a block o guided in the member j, Fig. 6. A roller p mounted in the sliding block o transmits the pressure from the spring k to the inner face of the head b thus effecting an eccentric rolling contact, between the head b and the inner face of the casing a. The material to be crushed enters through the openings q and after traversing the apparatus in a spiral path leaves by the outlet r. The casing a may rotate.
Patent GB-1141308-A (GB)
Title: A method of cleaning a plant for continuous sterilization of a substance and plant for carrying out the method
IPC: A23C7/02
Filed: 1966-05-13
Abstract: 1,141,308. Cleaning liquid sterilization plant. ALFA-LAVAL A.B. 13 May, 1966 [13 May, 1965], No. 21353/66. Heading A2D. Continuous sterilization plant, of the type in which milk is heated in one or more stages to a sterilization temperature, rapidly cooled and possibly homogenized, is cleaned by shutting off the flow of milk or other liquid and passing one or more cleaning media through the plant, the cleaning media being sterilized on its passage through the plant either by the sterilizing means of the plant or by auxiliary sterilizing means operating in addition to or instead of the main sterilizing means. Flushing liquid is similarly treated. Two suitable forms of sterilizing plant are described and illustrated.
Patent GB-570226-A (GB)
Title: Improvements in and relating to electrically insulated conductors
IPC: H01B3/30
Filed: 1943-12-22
Abstract: Electric wires are insulated by tightly adherent and thin superimposed coatings of nylon and a polyvinyl acetal resin.  The coatings are applied from a solution, each being baked before the next coating is applied, the nylon preferably forming the outer coating.  The coatings may alternate, or several baked films of one material may be overlaid by several baked films of the other material.  The polyvinyl acetal resins are described in Specification 351,082 and the nylon used is polyhexamethylene adipamide, obtained as described in Specifications 461,236 and 461,237.  Both materials may be mixed with a phenol-formaldehyde resin up to an equal quantity.  Several examples of the solutions used are given.  The insulated wires may be subsequently impregnated with a monomeric alkyl methacrylate polymerized in situ to produce magnet windings.
Patent GB-1509314-A (GB)
Title: Radiation-sensitive resist-forming composition
IPC: G03F7/038
Filed: 1975-05-20
Abstract: 1509314 Photo-sensitive materials KODAK Ltd 20 May 1975 21571/75 Addition to 1463816 Heading G2C A radiation sensitive composition comprises (i) the polymers of Specification 1463816 and (ii) a triphenyl derivative of formula ph 3 M wherein M is nitrogen, phosphorous, arsenic, antimony or bismith. The composition may be coated on to a hydrophilic lithographic support or a support comprising a metal layer, on the composition is coated, carried by an electrically insulating sheet. The composition may also comprise a coating solvent and polyunsaturated monomeric plasticizer, and the layer may be used to obtain a resist image by exposure to actinic radiation, and treatment of the exposed material with a solvent which removes the unexposed composition. In the Examples, triphenylarsine triphenylbismuthine and triphenylamine are used.
Patent GB-188757-A (GB)
Title: Improvements in shade carriers for electric lamp holders
IPC: F21V17/06
Filed: 1921-08-15
Abstract: 188,757. Coxon, S., and Soulsby, F. M. Aug. 15,1921. Shade-holders.-A shade carrier device for electric lamp holders comprises a lamp socket barrel 1, Fig. 2, having upper and lower hooked bayonet slots 3, 4 branching from longitudinal slots 2, and a carrier ring 5 having pins 6 for engaging the upper hooked slots 3 while the usual pins on the lamp neck engage the lower bayonet slots 4, the lamp shade being held between the carrier ring 6 on which the shade rests and a locking-ring screwed on the barrel above the shade. In a modification, the carrier ring 5, Fig. 7, is provided with depending arms 11 arranged to mask the longitudinal slots 2 in the barrel and to be locked in such position until the upper screw ring 9 has been displaced from the locking-position, and another slot 3<a> is provided at the top of the longitudinal slot 2 and on the opposite side to the other two slots 3, 4 so as to enable the carrier ring to be so positioned as to retain the .shade in position without causing the depending arms 11 to mask the longitudinal slots 2, and thus permitting attachment of the lamp.
Patent GB-1346638-A (GB)
Title: Process for the preparation of a catalyst
IPC: B01J37/22
Filed: 1971-04-19
Abstract: 1346638 Catalyst composition ENGELHARD MINERALS & CHEMICALS CORP 19 April 1971 [13 Feb 1970] 21686/71 Heading B1E [Also in Division C5] A catalyst comprising rhenium and a platinum group metal on alumina is formed by: (i) drying an aqueous slurry of hydrated alumina and forming particles therefrom having a minimum dimension of 0.01 inch; (ii) calcining at 800-1800‹F to give a surface area of below 350 m<SP>2</SP>/gm, the calcination being conducted at at least 1200‹F of water vapour is absent; (iii) impregnating with platinum group metal and rhenium compounds to give a final composition containing 0.1 to 1%wt Pt group metal and 0.1 to 2%wt Re (calculated as metals); and (iv) re-calcining at 600- 1200‹F. The Examples all relate to Pt plus Re on alumina.
Patent GB-662332-A (GB)
Title: Improvements in or relating to compression ignition engine power units
IPC: H02P9/00
Filed: 1948-08-17
Abstract: 662,332. Cooling cylinders. POWELL J. A. BENNETT-. July 20,1949 [Aug: 17, 1948], No. 21700/48. Drawings to, Specification. Class 7(ii) In a power plant comprising a main compression-ignition engine, having a supercharging blower driven by an auxiliary engine and giving falling torque with rising speed over tne running speed range, cooling means is provided operated electrically at substantially constant speed. As described, an air fan or a water pump is driven at a fixed speed by an electric motor supplied by a direct-current generator driven by the auxiliary engine. The generator has an automatic voltage regulator to ensure constant output voltage. The auxiliary engine may drive a further direct-current generator which, in addition to. charging the general power-plant battery, energizes the field of the voltageregulated generator, which has an equal voltage output for driving a starter motor for the main engine, and a higher voltage output for driving the motor for the cooling means and auxiliary apparatus. Safety arrangements ensure that the higher voltage is not applied to the starter motor and in the application to the plant described in Specification 628,448, [Group XXVI], which comprises four main engines and two auxiliary engines, each of the latter drives a voltage-regulated generator supplying current for the cooling means of two main engines and switching means enable auxiliary apparatus to be connected with either generator. Specifications 598,042 and 661,280 also are referred to.
Patent GB-1369118-A (GB)
Title: Electrical panelboard and method of forming same
IPC: H02B1/056
Filed: 1972-05-10
Abstract: 1369118 Switchboards SQUARE D CO 10 May 1972 [20 May 1971] 21740/72 Heading H1N The mounting pan of circuit-breaker panel board is replaced by a plurality of longitudinally grooved circuit-breaker mounting bars 14, 18 mounted parallel to a stack of bus-bars 22 or 24, circuit breakers being mounted on the bars 14, 18 by self tapping screws engageable in the grooves. The mounting bars 14, 18 are preferably of extruded aluminium and are secured to channel shaped mounting members 12 by self tapping screws which engage near grooves in the bars 14, 18. The two stacks of bus-bars 22, 24 are secured to a box 20 which is mounted by self tapping screws 16 passing through side flanges 20a, 20b to a groove in a respective mounting bar 14. Each stack of bus-bars 22, 24 is braced at opposite ends by a pair of right angle brackets 32 secured to end walls of box 20. Feeder bus-bars 25-28 are clamped to one end of respective pairs of bus-bars of the stacks 22, 24 by bolts 30 whilst splice plates clamped to the stacks at the other end by bolts 30 connect the pairs of bus-bars in parallel. By adding more of the smaller grooved mounting bars 18 the panel may be enlarged to accommodate various sizes of plug in circuit breakers and their appropriate plug in load side connectors.
Patent GB-808562-A (GB)
Title: Improvements in electric control arrangements utilising semiconductor devices
IPC: H01L23/44
Filed: 1955-07-28
Abstract: 808,562. Semi-conductor devices. GENERAL ELECTRIC CO. July 28, 1955 [July 29, 1954], No. 21856/55. Class 37. A rectifier comprising a semi-conductor body provided with a rectifying and a non-rectifying contact is characterized by having for a certain range of applied voltages two stable values of the forward resistance. In the embodiment the body is a monocrystalline Ge wafer 4 containing a trace of Fe, Co, Au, Zn or Cu, and the rectifying contact is formed by fusion of a blob 5 of alloy of Sn with As, Sb, or P, or of In with 10 per cent of one or a mixture of Sb, As, or P, on the wafer if it is of P-type conductivity or of In, Ga, Al or an alloy thereof if the wafer is N-type to form a PN junction 6 therein. The wafer is preferably made from high purity Ge, i.e. having less than 5 Î 10<SP>13</SP> atoms of uncompensated activator per c.c. to give a resistivity greater than 40 ohm. cm. at 250‹ C., doped with 10<SP>12</SP>-10<SP>14</SP> atoms/c.c. of Fe by crystallization from a melt as described in Specification 801,138. The non-rectifying contact 8 is of Sn or Sn-As, or Sn-Sb alloy if the wafer is N-type and of Sn, In, A1 or an alloy of Sn and one or more acceptors if it is P-type. The wafer is contained in a Dewar vessel 3 with a hollow inner wall 14 adapted to contain liquid air or nitrogen whereby the temperature is maintained at a level at which the forward resistivity for low voltages is circa. 10<SP>10</SP> ohm. cm. When the forward voltage exceeds a certain value the resistivity falls to a low value and the high resistivity is restored only by reduction of the voltage to a much lower value so that between these values the device has two stable values of resistance. The breakdown voltage is lowered by illuminating the device with visible light through window 15 and the resetting voltage may be raised by illumination with infra-red rays through window 16. A further device (Fig. 4, not shown), includes a further rectifying contact similar and adjacent to 5 but biased in the reverse direction so that light or a high voltage pulse causes the device to operate as a transistor.
Patent GB-957844-A (GB)
Title: Apparatus for condensing or reacting phosphoric acid anhydride
IPC: F28D13/00
Filed: 1961-06-16
Abstract: <PICT:0957844/C1/1> In a fluidized bed reactor, the exhaust gases from the bed are cleaned, cooled and blown back into the base of the reactor as fluidising gases for the bed.  The apparatus is described as being utilized for the cooling and condensing of P2O5 vapours. Liquid phosphorus enters a combustion chamber through 1 and is oxidized by dry air entering through 2.  The product, which contains excess air, nitrogen and gaseous P2O5 flows through conduit 3 via a loop-seal and extension 5 into a bed 7 of fluidized P2O5 particles which is cooled by plates 8 and supported on a gas distributing plate 12 in a collector vessel. The fluidizing gases pass from windbox 13, through plate 12 and into bed 7, and the residual gases leave via space 14 and conduit 15, passing into a cyclone where the large particles entrained in the gases are precipitated and returned to the bed via dipleg 16. The gases pass on via 17 to the wet scrubber where the very fine particles are removed by a liquid e.g. concentrated phosphoric acid, which does not cause appreciable humidification of the fluidizing gases. Next the gases flow through an optional heat exchanger, where they are further cooled, and then via 25 through the blower back to windbox 13.  The apparatus is preferably operated above atmospheric pressure to reduce the ingress of moisture from the outer air to a minimum. The P2O5 produced by this type of apparatus is disclosed and claimed in Specification 951,383.
Patent GB-278855-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B25/00
Filed: 1926-09-06
Abstract: 278,855. Hainline, T. W., and Hain line Motors Corporation. Sept. 6, 1926. Two-stroke-cycle engines; cylinders, valve casings for.-A double acting engine is supplied with mixture by a double acting pump; a central exhaust outlet 12 is controlled by the piston and admission to the pump and power cylinders 2, 3 is through automatic valves 33, 43. The pump piston is in advance of the power piston delivery, delivery of mixture taking place without considerable pre-compression, Each valve stem 50 passes through a stuffing box 49 over which is placed a casing 53 to prevent access of dirt to the stem &c.
Patent GB-243836-A (GB)
Title: Improvements in and relating to wire fabrics
IPC: E04C5/04
Filed: 1924-09-18
Abstract: 243,836. Sunderland, J. W., and Dunlop, F. E. Sept. 18, 1924. Wire fabrics for concrete reinforcements comprise intertwisted strands a, b, the direction of twist being reversed at intervals. Transverse wires c are threaded through the loops formed in the strands at each point at which the twist is reversed. Wire netting comprises wires d, e intertwisted ior portions of their lengths and bent to form the usual hexagonal mesh. The direction of twist is reversed at the central portion of the twisted part of the wires, leaving a loop f. Specification 246,190, [Class 83 (iv), Metals, Working), is referred to. Reference has been directed by the Comproller to Specifications 15642/84, 9188/94, 4740/00, and 13668/03, [Class 142, Weaving &c.].
Patent GB-1430634-A (GB)
Title: Fibres of regenerated cellulose and polyacrylic acid salt of alkali-metals
IPC: D01F2/08
Filed: 1973-05-09
Abstract: 1430634 Absorbent compositions FMC CORP 9 May 1973 [5 June 1973] 22043/73 Heading C3F Absorbent fibres comprise regenerated cellulose with an alkali metal salt of polyacrylic acid dispersed in it. The salt is present to an extent of at least 5% (based on the weight of the cellulose) and such that the fluid holding capacity (as herein defined) of the fibres is at least 4À55 c.c./g.
Patent GB-876458-A (GB)
Title: Improved austenitic alloy
IPC: C22C38/04
Filed: 1960-06-23
Abstract: An austentic alloy, resistant to oxidation at temperatures up to 1400 DEG C., has the following percentage composition by weight: Al 8-10, Mn 20-35, C 0.75-1.1, Si 1-2, Fe the remainder.  Articles made from the alloy may be heated to above the service temperature in an oxidizing atmosphere to remove a substantial portion of the manganese and carbon from the surface.
Patent GB-841196-A (GB)
Title: Theophylline derivatives
Inventor: DICKENENSON HAYDN GEOFFREY
IPC: C07D473/08
Filed: 1956-07-17
Abstract: The invention comprises the choline salt of theophyllyl-(N)-acetic acid and the preparation thereof either by treating a solution or suspension of the acid with the choline salt of a weak acid e.g. choline carbonate, or by evaporating an aqueous solution containing the acid or a water-soluble salt thereof and the choline salt of a volatile acid e.g. choline chloride or bromide.  Examples are given. Theophyllyl - (N) - acetic acid is prepared by heating a suspension of an alkali metal salt of theophylline in an aqueous solution of sodium or potassium monochloracetate containing sodium or potassium bicarbonate.  Specification 8031/14 is referred to.
Patent GB-1488300-A (GB)
Title: Asymmetric semipermeable membranes of poly(cyclic ureas)
Inventor: KNICKEL BIRGER
IPC: B01D71/64
Filed: 1975-05-22
Abstract: 1488300 Reverse osmosis BAYER AG 22 May 1975 [28 June 1974] 22178/75 Heading B1X [Also in Division B5] Desalination is effected by passing salt solutions through asymmetric semi-permeable membranes of poly (cyclicurea), in particular polyhydantoins or polyarabanates. Flat membranes are used in reverse osmosis apparatus of V4A steel and brine is pumped over it at 130 atmospheres. Alternatively the membrane may be in the form of hollow fibres.
Patent GB-663721-A (GB)
Title: Improvements in or relating to endless tracks or chains
IPC: B62D55/205
Filed: 1947-08-11
Abstract: 663,721. Vehicular endless tracks. BRISTOL TRACTORS, Ltd., and FIELD, E. April 8, 1948 [Aug. 11, 1947], No. 22209/47. Class 79(i) [Also in Group XXV] An endless track is characterized by the provision at each joint of adjacent links of a bush or bushes of resilient material having a pre-formed flange at one end and interposed between each link pivot pin and the adjacent connected link, the bush or bushes being compressed axially on the pivot pin to a fixed minimum distance by clamping together the outer chain links in such a manner that angular movement between adjacent links is absorbed in the resilient material by torsional elasticity. In one embodiment, Fig. 1, the bush assembly comprises two aligned resilient bushes 8 each having a pre-formed flange 9 at one end. Nuts 7 serve to clamp the outer links 4 and the spindle 1 together and to compress the bushes in an outer tube 3 and on the spindle 1 to a fixed minimum distance determined by shoulders 1x on the spindle 1. A roller 10 encircling the tube 3 is engaged by teeth of the driving sprocket (not shown). In an alternative embodiment, the outer links 4 are secured to a simple spindle, having no shoulders 1x, by means of cotter pins which determine the fixed minimum distance to which the bushes are compressed. The outer tube 3, Fig. 1, may have a flange 11 on its inner surface at the junction of the bushes 8, as shown in Fig. 3 which shows an alternative embodiment wherein the bushes are compressed between the outer tube 3 and an inner bush tube 6 and between the outer links 4 to a fixed minimum distance determined by the ends of the inner tube 6. The outer tube 3 is supported in a bearing portion 4x of the adjacent link. The flange 11 may be omitted. Each link may be provided with a tooth or projection (not shown) engaged by rollers on the driving sprocket. The track may be initially assembled in the form of a curve, so that when in use the resilient bushes will have torsional resistance to reverse pivoting of the links, thus resisting flattening of the track between the weight carrying wheels and distributing the ground pressure more evenly.
Patent GB-1362465-A (GB)
Title: Vehicles
IPC: B61B13/10
Filed: 1972-05-11
Abstract: 1362465 Steering vehicles SNAM PROGETTI SpA 11 May 1972 [13 May 1971 (2)] 22227/72 Heading B7H A vehicle, especially for movement along pipelines, has three wheels 2, 3, Fig. 1, fitted with rollers 7 which are freely rotatable about an axis perpendicular or substantially perpendicular to the axis of rotation of the wheel. The rollers allow the vehicle to follow a curved pipe-line by allowing the vehicle to move sideways under the action of gravity and thus return to the lowermost position in the pipe-line.
Patent GB-188803-A (GB)
Title: Improvements in, and apparatus for, the manufacture of pipes, tubes, or analogous articles, from lead, or other material which can be similarly moulded
IPC: B21C23/08
Filed: 1921-08-22
Abstract: 188,803. Lane, J. B. Aug. 22, 1921. Casting-machines.-Tubes are formed progressively between members having relative longitudinal movement, the method being characterised by the feature that molten material on partial or complete solidification in a space between the members is compressed laterally so as to be compacted with the tubular section previously formed. A mould C, Fig. 1, provided with an annular recess c is reciprocated over a stepped mandrel B fixed in the molten-material reservoir A. The mandrel is cooled at its end and for a predetermined portion of its length by an adjustable water pipe D insulated by an air space from the mandrel. On reciprocation of the mould, the material in the recess c is cooled bv contact with the mandrel and is then forced laterally into the previously formed tube-section by the end pressure of the surface b on the fluted part B of the mandrel. In a modification, a similarly cooled mandrel B, Fig. 4, is of tapered formation at b<8> and coacts with a mould C provided with arc-shaped projections c<1>. On the downward stroke of the mould, the tube already formed is arrested by the end b of the mandrel and the new charge of molten material entering the mould becomes cooled so that during the subsequent upward stroke, the projections c' compress the additional material laterally to form a new tube section. Either the mould or mandrel may be reciprocated and in the latter modification a water bath F, Fig 7, may be provided for the stationary mould. A series of units may be grouped for simultaneous actuation by a crosshead driven by eccentrics or other means. Burners mav be fitted to maintain the material in the reservoir in the required molten state.
Patent GB-1065550-A (GB)
Title: Transistor switching circuit
IPC: H03K5/02
Filed: 1964-05-29
Abstract: 1,065,550. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 29, 1964 [May 31, 1963], No. 22285/64. Heading H3T. A switching circuit comprises two emitter coupled pairs of transistors connected substantially as shown. When terminal 11 is made positive, transistor 4 is turned on, hence 6 is turned off, 22 turned on and 24 turned off, thus causing the current of 4 and 22 to flow in load 16. A negative potential at 11 reverses the conductive states of the transistors, giving a current in load 18. In Fig. 2 (not shown) further power transistors are connected in parallel with 22 and 24.
Patent GB-458993-A (GB)
Title: Improvements in date indicators and in other hand-set devices for displaying variable information
IPC: B42D5/04
Filed: 1935-08-07
Abstract: 458,993. Displaying information. NICHOLSON & TUCKER, Ltd., 28, Gamage Buildings, Holborn, London.-(Lauer, O., and Lauer, A., [trading as Lauer, G.]); 17, Simlerstrasse, Pforzheim, Germany) Aug. 7, 1935, No. 22355. [Class 118 (i)] [See also Group XIX] The invention relates to date and other hand-set indicators comprising a casing 1 containing cards visible through two apertures 2, one in each face of the casing, the cards being arranged in known manner so that, when the casing is turned end for end, the next consecutive indication appears in the aperture in that face of the casing now at the front. According to the invention, the casing is pivoted on pins 5 engaging grooves 7 in the casing and the base 4 is so shaped that the casing must be withdrawn to the position shown in Fig. 4, before it can be reversed. Accidental reversing of the casing is thus prevented.