baber/WOPTO huggingface dataset:
Patent GB-1360290-A (GB)
Title: Buffer arrangement
IPC: F16F7/08
Filed: 1972-12-08
Abstract: 1360290 Friction buffers SVERRE MUNCK AS 8 Dec 1972 [9 Dec 1971] 56909/72 Heading B7T [Also in Division F2] A buffer arrangement for retarding a linearlymoving body comprises an elongate cylindrical element 4, one or both ends of which are arranged (e.g. by rubber stoppers 9, 9<SP>1</SP>) to contact stop means, and one or more friction members 2 provided with mounting means 1 to be secured to the body (not shown), each of the friction members 2 engaging the cylindrical element 4 between its ends and comprising a pair of clamping jaws 2<SP>1</SP>, 2<SP>11</SP>, and spring means 5 urging the jaws towards one another to grip the cylindrical element 4 so that upon relative movement of the friction member(s) and the cylindrical element 4 longitudinally of the latter, the friction between them produces a constant retardation force over the entire length of the movement. The moving body may be an automatic crane. Preferably friction pads 3 are provided in the jaws. The jaws are joined by two screws 6, and a distance piece 7 is located between the head of each screw and the "inner" jaw 2<SP>1</SP> so that the degree of tightness of the screw does not affect the spring force: the spring force is regulated by washers 8 between springs 5 and jaw 2<SP>11</SP>.
Patent GB-1209048-A (GB)
Title: The treatment of open-cell foams
IPC: B05D7/02
Filed: 1967-12-15
Abstract: 1,209,048. Coated foamed material. KLEBER-RENOLIT PLASTIQUES. 15 Dec., 1967 [16 Dec., 1966], No.57162/67. Heading B2E. Open-cell foam material, e.g. a polyurethane, polyester or polyether open-cell foam material, is rendered weldable by treating foam with a powder of a thermoplastic material which has a granulometry such that at least 70% of the powder will pass the screen size 100 and will be returned on the screen size 240, the screen sizes being as set out in British Standard No. 410 (1969), the foam being impregnated 'by the powder to a depth of at least 2 millimetres. The foam may be impregnated with from 100 to 300 grams of powder per square metre. The thermoplastic material may be a copolymer of vinyl chloride and vinyl acetate containing from 3 to 15% by weight of vinyl acetate, a polyethylene, or a copolymer of ethylene. The foam material may be treated with the powder by passing it through a fluidised bed of the powder, or the powder may be projected electrostatically at the foam.
Patent GB-1174788-A (GB)
Title: Photo-Lithographic Printing Plates and Process for Producing same
IPC: G03F7/06
Filed: 1966-12-22
Abstract: 1,174,788. Photo-mechanical production of printing plates. ITEK CORP. Dec.22, 1966 [Dec.23, 1965], No.57488/66. Headings G2C and G2M. A photo-mechanical process for producing a lithographic plate comprises imagewise exposing a material comprising a support, a layer containing a silver halide developer and a layer containing gelatine and silver halide, applying an activator solution so that the developer develops the latent silver image and the oxidized developer reacts with the gelatine to form a hydrophobic image; the water-absorption characteristics of the gelatine being reducing by applying an alkali metal halide, sulphate or nitrate. The alkali metal salt is preferably applied after development e.g. it is added to an acid stop bath. The preferred materials are those disclosed in Specification 978, 744 and the preferred stop baths are those of Specification 1, 057, 389 containing phosphoric acid, benzyl alcohol, triethylene glycol and the alkali metal salt.
Patent GB-1203869-A (GB)
Title: Anti-electrostatic articles from high polymers
Inventor: SCHNEIDER JOACHIM
IPC: C07F7/18
Filed: 1968-12-04
Abstract: 1,203,869. Antistatic polymer compositions; silicon modified polyoxyalkylenes. FARBENFABRIKEN BAYER A.G. 4 Dec., 1968 [28 Dec., 1967], No. 57548/68. Headings C3R and C3S. Antistatic articles are formed from a synthetic polymers, e.g. polycaprolactam, containing 0.2 to 30% by weight of a silicon compound. in which R 1  is a C 6-26  alkyl radical, R 2  and R 3  are C 1-4  alkyl radicals, OR 1  or Y; Y represents the radical in which R 4  is H or methyl and n is 5-250. In preferred Si compounds R<SP>1</SP> is stearyl. The compounds may be prepared by reacting stearyl alcohol with trichloromethyl silane followed by reaction with polyethylene glycol.
Patent GB-1449187-A (GB)
Title: Commutator welding apparatus
IPC: B23K9/10
Filed: 1973-12-12
Abstract: 1449187 Welding by fusion BBC BROWN BOVERI & CO Ltd 12 Dec 1973 [12 Dec 1972] 57550/73 Heading B3R In successively TIG spot arc welding commutator risers F to respective conductors of a rotor winding whilst the rotor is rotated at a constant speed, a feeler L is inserted into a gap between two adjacent risers (e.g. 2, 3 as shown) whereupon deflection of the feeler by engagement therewith of the oncoming riser (e.g. 2) is used to trigger a welding operation and withdrawal of the feeler from the gap, said withdrawal being maintained for a predetermined period sufficient for the next. gap (e.g. between 1, 2) to come into line with the feeler whereupon the feeler is reinserted. The feeler L, of spring steel and tip radiused is carried by a lever A pivoted at D on an L- shaped support T. The latter is carried by the actuator of a pneumatic cylinder or, as shown, by the armature Z s  of a solenoid Z 1  for movement of the support, and hence the feeler, radially of the rotor. The lever A carries an actuator Sl co-operable with a switch S 1  carried by the support T, and on deflection of the lever A about the pivot D by an oncoming riser, the switch S 1  is actuated to trigger a welding operation after a delay determined by a potentiometer, and, for feeler withdrawal, to energize the solenoid Z 1  after a delay. After a timerdetermined period, the solenoid Z 1  is de-energized and the support is gravity returned for reinsertion of the feeler. A tension spring Zf normally retains an armature on the lever A in engagement with an electromagnet Z 2  on the support. When the armature of the solenoid Z 1  occupies any position other than the feeler inserted position, a switch S 2  is actuated to energize the electromagnetic Z 2  to prevent feeler deflection and hence undesirable welding initiation. The solenoid is supported for adjustment axially of the rotor and vertically. The switches S 1 , S 2  may be mechanically operated microswitches or, as shown, proximity switches (e.g. photo-cell).
Patent GB-1197768-A (GB)
Title: Improvements in and relating to the Remote Attachment and Removal of Protective Bellows.
Inventor: FORTIN MARCEL
IPC: G21F7/06
Filed: 1967-12-19
Abstract: 1,197,768. Attachment means for resilient bellows. COMMISSARIAT A L'ENERGIE ATOMIQUE. 19 Dec., 1967 [29 Dec., 1966], No. 57693/67. Heading F2S. A device for the remote attachment or removal of a protective bellows seal to or from a member, e.g. a manipulator located in a sealed enclosure, comprises a base 1, two upstanding members 5, 7 defining between them a space, a ledge 9, 11 on each member defining between them a slot, each ledge being formed with an inner surface having a first portion provided with a rectilinear groove 17, 19, a second portion being defined by an arcuate cut-away 21, 23 and having a groove forming an extension of the groove 17, 19 of the first portion, and a third portion being ungrooved and coated with adhesive, the thickness of each inner surface 25, 27 of the third portion being less than that of the inner surfaces of the first and second portions. Methods of attaching and removing bellows seals using the device are described, and in one embodiment (Figs. 4, 5, not shown) the seal is provided with a metal or plastics ring (41) to improve and facilitate the operations.
Patent GB-1448562-A (GB)
Title: Process for the production of methane containing gases
IPC: C07C1/00
Filed: 1972-12-18
Abstract: 1448562 High methane content gas BRITISH GAS CORP 5 Dec 1973 [18 Dec 1972] 58368/72 Heading C5E A gas containing a high proportion, e.g. more than 85% by volume calculated on a dry CO 2 -free basis, of methane is produced by (i) producing a gas containing a substantial proportion of methane by the low temperature catalytic gasification, in a first catalytic reaction zone of a mixture of steam and the vapour of a predominantly paraffinic hydrocarbon feedstock having a final boiling point of not more than 350‹ C.; (ii) increasing the proportion of hydrogen in the gas mixture produced in stage (i) by passing at least a part of the gas mixture into a second catalytic reforming zone in which the mixture reacts in the presence of a steam reforming catalyst to convert a proportion of the methane contained therein to hydrogen and carbon oxides; (iii) mixing the gas mixture produced in stage (ii) with a further supply of predominantly paraffinic hydrocarbon feedstock and, optionally, steam; and (iv) passing the mixture formed in stage (iii) into a third catalytic hydrogasification zone wherein the constitutents of the mixture react to increase the proportion of methane in the mixture. The catalytic reactions may be carried out at 5 to above 100 atmospheres, e.g. at the transmission pressure of the final gas. The catalyst beds may be static or fluidized beds. The feedstock and steam for the first zone may be preheated to between 400‹ and 500‹ C. 5 to 10% by wt. of the total feedstock supplied to the first and third catalytic stages may be employed for the first stage reactor and all the first stage offgases is subjected to reforming in the second stage with additional steam being supplied prior to the second stage reforming reaction; or 15 to 35% by wt. of the total feedstock supplied to the first and third catalytic stages may be employed for the first stage reaction and only a part of the first stage off-gases is subjected to reforming, the non-reformed part being subjected to the third stage reaction, in admixture with the reformed part, fresh steam and the remainder of the feedstock. The inlet temperature of the gas mixture to the third stage reactor may be from 300‹ to 400‹ C. and the outlet end of the third stage reactor may be cooled to between 200‹ to 250‹ C. The gases from the third stage reactor may be subjected to methanation. The methane-containing product gas may be subjected to carbon dioxide removal.
Patent GB-1334616-A (GB)
Title: Apparatus for the production of packages from weldable packaging  material
IPC: B65B9/213
Filed: 1971-12-16
Abstract: 1334616 Seaming non-metallic sheet material HAMAC-HANSELLA GmbH 16 Dec 1971 [19 Dec 1970] 58449/71 Heading B5K [Also in Division B8] A device 25 for welding and severing thermoplastic films comprising two pairs of clamping jaws 41, 51 and 42, 52 lying one above the other, two parallel pairs of welding jaws 43, 53 and 44, 54 arranged therebetween, and a severing tool 55 arranged between the welding jaws, is characterized in that at least one clamping jaw 52 of the lower pair 42, 52 is retractable separately from the other clamping jaws. In a packaging machine, thermoplastic film 21 passes from a roll 14 around rollers 15, 19, 16, 20, 18 and is formed into a tube 22 around a former 12 by a member 13. The overlapping longitudinal edges are welded by a shoe 23. The transverse welding device 25 comprises two parallel U-section beams 33, 34 arranged on guide rods 31, 32 and connected to each other by chains 35, 35<SP>1</SP> guided around sprockets 36, 36<SP>1</SP>. Tension springs 37, 37<SP>1</SP> retain the beams 33, 34 in the non-operative position. The jaws 41, 42 are secured to the beam 33 and a block 46 defining the jaws 43, 44 separated by a groove 45 is fixed therebetween. The operative faces of the jaws 41, 42, 43, 44 lie in a vertical plane and the beam is movable by a pneumatic or hydraulic cylinder 38. The jaw 51 is rigidly fixed to the beam 34 and the jaw 52 is movable within the beam 34 towards and away from the jaw 42 and is shorter than the jaw 51. The jaws 53, 54 separated by the knife 55 are mounted on a block 50 supported on pins 56 horizontally movable in the beam 34 by a cylinder 57. The jaw 52 is carried by guides 60 supported on bolts 59 fixed to the block 50. Compression springs 62 press the guides 60 against the block 50. Heating strips 65, 66 are provided on the jaws 53, 54 and channels 67, 68 terminating in nozzles 69 for cooling air are provided in the jaws 51, 52. In operation, during downward film feeding movement of the device 25, the jaws 41, 51, 42, 43, 44 first engage the tube 22 with the jaws 41, 51 co-operating and the block 50 is then moved towards the tube 22. The jaw 52 contacts the tube and co-operates with the jaw 42. The knife 55 severs the tube and the jaws 53, 54 co-operate with the jaws 43, 44 to effect welding. As the jaws 53, 54 start to withdraw, cooling air is supplied through the nozzles 69. On withdrawal of the jaw 52, the package is removed on to a conveyer 28, Fig. 1, by tilting a support plate 27. In a modification (not shown), the jaws 42, 52 are each movable and controllable separately from the jaws 41, 51.
Patent GB-1508123-A (GB)
Title: Process for preparing carboxyalkylated starch derivatives
IPC: C08B31/00
Filed: 1973-12-19
Abstract: 1508123 Carboxyalkylation of cross-linked starch derivatives UNILEVER Ltd 18 March 1975 [19 Dec 1973] 58917/73 Addition to 1508570 Heading C3U A process for the carboxyalkylation of a cross-linked starch derivative comprises carboxyalkylating a cross-linked starch having a water swelling volume of 5-25 ml./g. to an actual degree of substitution of from 0À1 to 0À8 to provide a carboxyalkylated starch having a water regain of greater than 10 ml./g. Preferably the carboxyalkylating agent is chloracetic acid/sodium hydroxide. The product is useful for absorbing large quantities of water and urine and is prepared by applying a mixture of starch granules, water and a crosslinking agent as a thin film to a heated surface to effect granule rupture and then crosslinking as above.
Patent GB-1197630-A (GB)
Title: Improvements in or relating to Drinking Tumblers.
Inventor: SCHILLING PAUL KEHNE
IPC: B65D1/26
Filed: 1967-12-29
Abstract: 1,197,630. Nestable drinking tumbler. PLASTICS Inc. 29 Dec., 1967, No. 58988/67. Heading A4A. A nestable plastics drinking tumbler is constructed such that the outer diameter 19 of the lower end 16 is smaller than the inner diameter of the tumbler just above the recessed bottom 15.
Patent GB-1328869-A (GB)
Title: Apparatus for the maintenance of pneumatic tools
IPC: F15D1/00
Filed: 1970-12-11
Abstract: 1328869 Lubricating P KIPP and J NOWAK 11 Dec 1970 [2 May 1970 13 July 1970] 59125/70 Heading F2A [Also in Division B1] In apparatus for suspending in compressed air a treating fluid (which may contain a lubricant) for pneumatic tools, air enters at 36 a square section tubular chamber 29 enclosed in a tank 11 for the fluid. Part impacts a plate 43 and forms a zone of reduced pressure at 67, while part passes up a standpipe 41 to pressurize the fluid which flows through an aperture 57 and bores 59, 61, 62, 63, 64, 66 situated in the reduced pressure zone 67. Any number of the bores can be uncovered by a piston 68. The fluid is atomized by the bores and forms a mist which impacts a perforated saw-tooth baffle 46 and leaves via outlets 52.
Patent GB-1443340-A (GB)
Title: Directional sources of electromagnetic radiation
IPC: F21V7/22
Filed: 1973-12-21
Abstract: 1443340 Lamps RANK XEROX Ltd 21 Dec 1973 59385/73 Heading F4R [Also in Divisions G2 and H5] A lamp for use as a fuser in an electrostatic copying machine comprises a linear filament 19 disposed within a cylindrical quartz tube 18 which is partially embedded in a reflective material 22 supported in a metal shield 23. The material is preferably a ceramic fibre felt which is bleached white by the heat from the lamp. The back portion 21 of the tube is generally of circular cross-section but may be elliptical or parabolic.
Patent GB-1422287-A (GB)
Title: Insulated gate transistor
IPC: H01L29/49
Filed: 1973-12-27
Abstract: 1422287 Semi-conductor devices SUWA SEIKOSHA KK 27 Dec 1973 [9 Jan 1973] 59786/73 Heading H1K An IGFET comprises a substrate 1, source and drain electrodes (7, 8), Fig. 3(a), (not shown) a gate electrode 3 formed of polycrystalline silicon, and a polycrystalline silicon layer 11 on at least one end of the gate electrode 3 so as to extend beyond the source and drain electrodes (7, 8), in the direction transverse to a line joining the source and drain electrodes, the polycrystalline silicon layer 11 being doped with an impurity having the same type of conductivity as the substrate 1. The substrate 1 is silicon and is coated with a gate insulation 2 and field insulation 5. The IGFET is surrounded by a doped diffusion layer 6 formed during doping of the polycrystalline layer 11. The layer 11 inhibits the formation of an inversion layer in the substrate 1, which inversion layer shortcircuits the source and drain electrodes (7, 8).
Patent GB-1255377-A (GB)
Title: Improvements in or relating to controlled output thermal storage systems
Inventor: TAYLOR GORDON
IPC: F24H9/20
Filed: 1969-12-12
Abstract: 1,255,377. Thermal storage heaters. BURCO DEAN Ltd. 31 Dec., 1970 [12 Dec., 1969], No. 60635/69. Heading F4U. A thermal storage heater comprises a proportioning valve 28 sensitive to air outlet temperatures to control relative air flow through a by-pass passage 24 and passages 16, 18, 20 about and in the core of storage blocks 14. The valve 28, Fig. 2, is in flap form controlled through linkage 30 from a sensor 33 in the air outlet via a heating element 35 attached to the upper side of a thermometal strip 32 fixed at one end 34 and at the other connected to the linkage 30 so as to open and close the flap valve 28. The strip 32, after fully closing the valve, bends further to operate a switch 36 to supply current to the heating elements in the core and to an additional heater 38 in the by-pass passage, if fitted.
Patent GB-1339716-A (GB)
Title: Method of making hydrocarbon conversion catalyst supported on a  base comprising a metal phosphorus oxide
IPC: B01J27/16
Filed: 1970-12-22
Abstract: 1339716 Hydrocracking ESSO RESEARCH & ENG CO 22 Dec 1970 [2 Feb 1970] 60784/70 Heading C5E [Also in Division B1] A vacuum gas oil is hydrocracked with removal of N and S at 650-750‹ F., 1500 p.s.i.g., 3000 ft. <SP>3</SP>H 2 /barrel and a wt. feed rate of 1À3 hr.<SP>-1</SP> in a fixed bed reactor over a catalyst comprising CoO and MoO 3  dispersed in an alumina/ aluminium phosphate gel (see Divisions B1-B2) which has been pre-reduced and sulphided.
Patent GB-1263599-A (GB)
Title: Improvements in or relating to pressure-sensitive electric transducers
IPC: H04R23/00
Filed: 1969-12-22
Abstract: 1,263,599. Semi-conductor devices. MATSUSHITA ELECTRONICS CORP. 22 Dec., 1969 [27 Dec., 1968], No. 62304/69. Heading H1K. A pressure transducer comprises a semiconductor substrate 1 on which is a layer 12 forming therewith a rectifying junction, a metal electrode layer 13 bonded to the layer 12 and forming a eutectic alloy bond with a metal layer 15 on a rigid core 14. The layer 12 is of molybdenum to form with the substrate a Schottky barrier or of a semi-conductor having conductivity different from that of the substrate to form a P-N junction therewith. The electrode layer 13 is of gold, aluminium, copper or a leadtin alloy. The layer 15 is of aluminium, copper, gold or nickel. The core 14 is of diamond, ruby, sapphire, agate, quartz or glass. The core and part of the electrode layer 13 are bonded with an adhesive 5 of a plastics material or rubber. The layer 15 is applied to the core 14 by vacuum deposition, chemical deposition or electroless plating. The electrode layer and the metal layer 15 are bonded by retaining the core with a vacuum sucker and pressing it against the electrode layer which is heated to a predetermined temperature.
Patent GB-1240635-A (GB)
Title: Device for encapsulating a radioactive resin-water slurry
IPC: G21F9/36
Filed: 1969-12-30
Abstract: 1,240,635. Containers for radioactive waste. WESTINGHOUSE ELECTRIC CORP. 30 Dec., 1969 [21 Jan., 1969], No. 63227/69. Heading G6R. A container for radioactive waste in the form of a mixture of water and solid material comprises an outer container 14 enclosing an inner perforated container 24, and an inlet conduit 40; dry powdered hardenable material, e.g. cement 18, is provided in the space between the outer and inner containers. In treating a resin-water slurry, vacuum is applied at 49 and the slurry admitted at 40; the liquid part of the slurry passes through apertures 31 to harden the cement while the resin is retained within container 24. The device may include a lead-steel radiation shield 12.
Patent GB-640856-A (GB)
Abstract: 640,856. Rotary pumps and engines. PRENDERGAST, C. S., PRENDERGAST, R. S., DIXEY, G. W. B., and GORDON, H. Sept. 14, 1948, Nos. 24079/48 and 4390/49. [Class 110(ii)] A pump or engine of the outwardly-sliding abutment type has a series of working- chambers with phase-displaced rotors 4 in which the chambers and rotors are relatively profiled (a) to isolate at all times inlets from discharge ports, (b) to ensure that the flow from one chamber is always balanced by the flow from another and (c) to bring about reciprocal rates of acceleration and deceleration of the abutments as the rotors rotate to give uniform delivery (for a pump) at all times. Each rotor 4 is formed of two circular arcs connected by curves to give the correct abutment movement or the outer ring, carrying the abutments 10 may rotate about an inner stator. Spaces 11 behind pairs of abutments are interconnected and under pressure of delivery fluid with springs if desired. An inlet 13 leads to a pair of admission ports 14 and delivery ports 16 connect with a outlet 15. Fig. 8 shows a modification having four working chambers with peripheral outlet channels 16a connecting the working chambers with the delivery. Each working chamber may have one abutment only.
Patent GB-648233-A (GB)
Abstract: 648,233. Firebars. REID, R., and JONES & CAMPBELL, Ltd. Dec. 29, 1948, No. 33386. [Class 51(i)] A firegrate comprises parallel firebars contained wholly within the firechamber resting on or in a support at the rear and having hooked front ends, the hooked ends of alternate firebars engaging over an upper transverse member and the hooked ends of intervening firebars engaging over a parallel lower transverse member, the upper and lower transverse members being con-, nected to form an agitating unit located within the furnace chamber having trunnions rotatable in bearings at the sides of the grate so that the firebars are reciprocated in a lengthwise direction. Parallel firebars 16 are disposed with their rear ends passing through slots in a deadplate and their hooked front ends 19 on an agita- .ting unit A.-The agitating unit A-is formed from an upper and a lower parallel transverse member 10 connected together at their ends and is provided with trunnions 11 at each end about which it may be oscillated by the insertion of an agitating means in a socket 15. The hooked ends 19 of alternate firebars 16 are supported by the upper transverse member 10 and interopening firebars 16 are supported by the lower transverse member 10. The upper parts of each hooked end 19 form a platform which engages with a transverse member above the front of the grate to limit rising movement of the firebars 16 when agitated. The firebars 16 are provided with lateral projections 18, 19 to act as spacing members for the central part of the firebars. Projections 22 are arranged on the upper surface of each firebar. In a modification the agitating unit A1, Fig. 7, is in the form of a bar 14a,on which the hooked portions of firebars are supported by upper projections l0a and lower projections 10b. The firebars 16 are supported freely at the rear by a transverse member.