baber/WOPTO huggingface dataset:
Patent GB-1520369-A (GB)
Title: Adjustable shelf supporting brackets
IPC: A47B57/04
Filed: 1976-12-17
Abstract: 1520369 Shelf brackets EMHART INDUSTRIES Inc 17 Dec 1976 [29 Jan 1976] 52872/76 Heading A4B An angularly adjustable shelf bracket 10 comprises an elongate arm 11 with a butt end from which project a pair of vertically spaced fingers 22, 23 which are engageable with horizontal bars 21  separating vertically spaced openings 20 in an upright support 18, the upper and lower fingers 22, 23 having respectively in their upper edges two shoulders 24, 25 and one shoulder 37 facing towards the butt end for selectively engaging said bars 21 to support the bracket 10, and the lower edges of the fingers 22, 23 having formations as shown, which can operate with the upright support to provide an interim arresting of the bracket against dropping away from the support when effecting adjustment from one angular position to another. In a modified bracket 10', Fig 5, for supporting heavier loads a third finger 42 is disposed below the lower finger 23'. A pair of brackets may be permanently secured to the ends of a shelf.
Patent GB-1444718-A (GB)
Title: Electrical heating unit
IPC: F24D13/02
Filed: 1972-11-16
Abstract: 1444718 Electrical resistance heating ATKINSON ELECTRICAL & ENG CO Ltd 15 Nov 1973 [16 Nov 1972] 52968/72 Heading H5H An electrical heating unit for use in heated ceilings comprises a resistance heating element 2 sandwiched between a substrate 1 and an air impermeable thermally insulating layer of synthetic plastics material 3 bonded together, the exposed surfaces, at least of the insulating material being surrounded by a covering membrane of synthetic plastics material 4. Substrate 1 is a polyethylene-paper laminate. Insulating layer 3 is of a self-extinguishing non-porous expanded polystyrene. Envelope 4 is of polyvinyl chloride. Flange 8 extending outwardly from the unit is formed of the envelope 4. Dimensions, heat output and softening temperatures of the plastics are given. Heating element 2 is meander-wound on the insulating layer and connected to cold tail cables that lie parallel to but spaced from the edges of the insulation to give wire-free margins (7, Fig. 2, not shown) through which nails may be driven.
Patent GB-1124078-A (GB)
Title: Preparation of imido-chlorides
Inventor: ZECHER WILFRIED
IPC: C07D241/44
Filed: 1965-12-14
Abstract: Compounds containing from 1 to 4 imido chloride groupings of the formula <FORM:1124078/C2/1> are prepared by reacting secondary amines of the formula <FORM:1124078/C2/2> or the hydrochlorides thereof with Cl2 in a stepwise chlorination, optionally under the action of ultra-violet light, the first step being carried out at -20 DEG  to +60 DEG  C. until all easily exchangeable H atoms are replaced by Cl, continuing the chlorination at +70 DEG  to +250 DEG  C. and isolating the resulting desired product. The total number of chlorine atoms in the product may range from complete replacement of all reactable hydrogen atoms to only partial replacement of such atoms.  The reaction may be accompanied by secondary reactions such as the elimination of HCl or the aromatization of ring systems.  In the above formula, n is 1-4, R1 and R2 are each alkyl or cycloalkyl containing up to 6 carbon atoms, aryl, aralkyl or a 5- or 6-membered heterocyclic radical containing 1-3 nitrogen atoms or an oxygen or sulphur atom and optionally being fused to a 4 to 6 membered carbocyclic ring, or one of the above radicals substituted by 1 or more halogen, -CN, -NO2, -O-alkyl (C1- 6), -O-aryl, -COCl, -SO2Cl, alkyl or alkenyl (up to C6), aryl, mono- or di-alkyl- or aryl-amino radicals in which the alkyl groups have 1-6 carbon atoms or may be linked to form a 5- or 6-membered nitrogen-containing heterocyclic ring, or R2 may additionally represent halogen, -CN, -COCl, -CHO, -COO-alkyl or mono- or dialkylamino, or R1 and R2 may be linked via N, O, S, methine or methylene to form a 5- or 6-membered ring system, and R3 represents H or halogen.
Patent GB-1208289-A (GB)
Title: Improvements relating to welding apparatus
Inventor: BALCHIN NIGEL
IPC: B23K9/038
Filed: 1967-11-23
Abstract: 1,208,289. Welding by fusion; casting composite joints. WELDING INSTITUTE. 19 Nov., 1968 [23 Nov., 1967], No. 53349/67. Headings B3F and B3R. [Also in Divisions G1 and G3] In an electroslag welding process the speed of advance of the welding shoes 13, 14 is controlled by an eddy-current liquid level detector (30), Fig. 2 (not shown), from which the output signal controls a lifting motor 18 driving a gear 19 along rack 20 (see Division G1). The slag depth, 60, is maintained constant by an automatic level control (see Division G3) in which a flux hopper flap 66 is controlled by an electromagnet 64, 65 operated by a relay 62, 62a in accordance with signals from a conductivity probe 61 Should the level of the conductive slag fall below the probe tip the flap is operated to restore it. In another embodiment, Fig. 6, a similar eddy current detector, 70, is mounted in the wall 71 of a crucible 72. Powder, 80, for the Thermit welding process is placed in the crucible and ignition powder 81 placed on top of it. When the level of the molten metal reaches that of the detector a tapping pin 74 is operated to allow the metal to pass through a gate 75 into a mould 76. The mould contains a section 77 to be joined to another. It is stated that the detector may be applied to electrogas welding.
Patent GB-1144506-A (GB)
Title: Apparatus for automatically signalling a fall of pressure in intercommunicating vehicle tyres and interrupting communication therebetween
IPC: B60C23/00
Filed: 1966-11-30
Abstract: 1,144,506. Equalizing pressures in twin tyres. G. D'O CONTRI. 30 Nov., 1966, No. 63581/66. Heading B7C. Apparatus for automatically signalling a fall of pressure in intercommunicating vehicle tyres and interrupting communication therebetween comprises two conduits 42, only one of which is shown, each connecting a tyre to a common chamber C having a resilient diaphragm 26 therein subjected to the vehicle tyre pressure, which diaphragm is biased by means towards the ducts so that when the pressure in the chamber drops below a preselected level the diaphragm interrupts communication between the individual tyres and the chamber. An indicating member formed from a plate 6 having coloured zones which is slidable in ways 37 beneath a window 40 in a plate 39 is operated via a. linkage by the diaphragm to indicate whether the tyres are intercommunicating. The diaphragm biasing means comprises a spring 28, the force of which is adjustable by a handle 23 adapted to move over a graduated scale and connected thereto via a member 22 clamped by a screw 25 to a lid 24 formed integral with the handle. The linkage between the diaphragm and indicating member comprises a rod 3 which contacts, at its lower end, a resilient sealing cup 2 resting on a boss 30 of a cup 1 mounted in contact with the diaphragm, and, at its upper end, a lever arrangement 4, 5 actuating the indicating member. The lever 5 also controls an electrically operated optical and/or sound device through a lead 13 when communication between the tyres is interrupted.
Patent GB-1125049-A (GB)
Title: Improvements in and relating to fluid diffusers
IPC: F15D1/00
Filed: 1965-12-20
Abstract: 1,125,049. Boundary layer control. BROWN, BOVERI & CO. Ltd. 20 Dec., 1965 [22 Dec., 1964], No. 53813/65. Heading F2R. [Also in Division G3] Breakaway in wide-angled diffusers is prevented by arranging for the flow at the inlet to the diffuser to have a velocity profile exhibiting a maximum at least in the vicinity of the diffuser wall. Such maximum velocity adjacent the wall may be established by means of blade members located upstream of the diffuser, and exists at a maximum distance of 0.2r H  as measured from the wall, r H  being the hydraulic radius of the diffuser at a given cross-section thereof. The total angle of the diffuser is at least 20 degrees and may exceed 40 degrees.
Patent GB-1417188-A (GB)
Title: Electric power converters
IPC: H02M7/155
Filed: 1972-11-22
Abstract: 1417188 Converting GENERAL ELECTRIC CO 22 Nov 1972 [24 Nov 1971] 53880/72 Heading H2F In a converting system, A.C. or D.C. input power is first converted to higher frequency in a first converter having a parallel L.C. commutation circuit for supplying a controlled variable amount of commutation energy to turn off the switches of the first converter, the higher frequency then being changed to the required frequency (or D.C.) and voltage in a phasecontrolled second converter, the switching devices of the first and second converters being driven in synchronism or at related frequencies greater than the resonant frequency of said I.C. circuit.  As described, Fig. 1 shows a D.C. supply 11 fed to an inverter 12 having a parallel I.C. commutation circuit 15, 16 and thyristors A1, B1 triggered by circuit 24 at 1000-2000 Hz. The output is fed to a transformer 14 having secondary windings 14a, 14b, 14c, feeding respective single-phase cycloconverters 17a, 17b, 17c connected in delta across a three-phase motor or other load 23. The thyristors A<SP>1</SP>1 ... C<SP>1</SP>4 are triggered by circuit 25 at the same frequency as A1, B1, but are selectively controlled so that the effective output frequency is variable from 0-400 Hz. The output voltage is variable by phase control e.g. in proportion to the output frequency. The frequency of inverter 12 is varied to accommodate different commutation energy requirements caused by different load requirements. In Fig. 8.-Both converters take the form of similar cycloconverters 35, 35<SP>1</SP>, the former 35 normally changing the three-phase supply ABC to a high frequency, but operating in inverse manner to return energy from a regenerative load to the supply ABC. The common commutation circuit 15, 16 is adjustable by phase-controlled thyristors 37, 38, which have the effect of varying inductor 161 and thus rendering variation of commutation frequency unnecessary. Modifications.-In Fig. 4 (not shown), the inverter transformer feeds high frequency to a pair of bi-phase phase-controlled rectifiers respectively feeding separate D.C. loads. Each rectifier is by-passed by a diode. In Fig. 5 (not shown), a single secondary winding feeds high frequency to three single-phase cycloconverters, the outputs of which are connected in star to a three-phase motor. In Fig. 7 (not shown), a three-phase supply is rectified to feed a high frequency inverter which is transformer-coupled to a cycloconverter of the form shown in Fig. 8. The thyristors may be replaced by triacs.
Patent GB-1125818-A (GB)
Title: An equipment for wire-lining operations in submarine or subaqueous oil wells
IPC: E21B33/076
Filed: 1966-12-01
Abstract: 1,125,818. Wells &c. SOC ANON: SOC. AUXILIAIRE DES PRODUCTEURS DE PETROLE "FLOPETROL". 1 Dec., 1966 [11 Dec., 1965; 8 Nov., 1966], No. 53929/66. Heading E1F.  Wire-lining apparatus for subaqueous wells comprises a housing 3 fixed to well-head 2 and having a lubricator 4 rigid therewith, the housing containing a wire-line 6 reeled on drum 5 and passing out through stuffing box 12 to enter the top of lubricator 4 in liquid-tight manner where it carries conventional measuring, supervising, cleaning instruments &c. The winch is driven by hydraulic motor 44 controlled from the surface by signals via electrical conductor 18. The hydraulic pressure fluid is supplied 'by electrically-driven pumps 41. Pulley 54 may be oscillated vertically by motor 53 to jar the wire-line, and pulley 7 is oscillated along screw 52 to wind the wire-line evenly on the drum. Blow-out preventer 15 is controlled by electrically-activated valve 28, and may be manually controlled by pump 34.
Patent GB-1205424-A (GB)
Title: Process for producing graft polymers
IPC: C08L77/00
Filed: 1967-11-28
Abstract: 1,205,424. Polyamide-containing graft polymers. ALLIED CHEMICAL CORP. 28 Nov., 1967 [28 Nov., 1966], No. 54165/67. Headings C3P and C3R. A graft polymer composition is formed from an omega-amino carboxylic acid containing at least six carbon atoms, or a polyamide-forming derivative thereof, as monomer, and an ethylenic copolymer containing from 80 to 99 mol. per cent of an ethylenically unsaturated compound not being a carboxylic acid and containing not more than 10 carbon atoms and 1 to 20 mol. per cent of an ethylenically unsaturated monocarboxylic acid containing three to eleven carbon atoms or a derivative thereof providing pendant carboxy-grafting sites on said copolymer by a process comprising: (A) mixing said monomer and copolymer with shearing agitation at a temperature above the softening point of the copolymer to form a dispersion in the monomer of fine particles of the copolymer; (B) passing steam over the said dispersion to initiate polymerization of the monomer; (C) displacing the steam with an inert gas and polymerizing said monomer at 230-290 C. in the presence of a terminating agent present in the reaction mixture in an amount of from 0.0005 to 0.05 mol. per mol. of the originally charged monomer while the shearing agitation being maintained in steps (B) and (C) and maintaining a flow of inert gas above said reaction mixture; (D) terminating said polymerization by permitting the water vapour liberated from the reaction to reach a concentration above the reaction mixture such that polymerization ceases, to give a molten polymer composition containing polyamide homopolymer and polyamide grafted copolymer and having a melt index of 0.1 to 100. The terminating agent e.g. a mono- or di-carboxylic acid such as acetic or sebacic acid, a monoisocyanate or an amine may be mixed with the monomer before the latter is mixed with the copolymer. Specified monomers are monoaminocarboxylic acids and esters, amides and lactams thereof. The copolymer is derived from, as major monomer, e.g. butene, heptene, decene, ethylene, propene, cyclopentene or cyclohexene, and, as minor monomer, e.g. acrylic acid, methacrylic acid, or an acrylate or methacrylate ester or salt. In the examples, epsilon-caprolactam is grafted on to an ethylene-ethyl acrylate copolymer using sebacic acid as terminator.
Patent GB-1401826-A (GB)
Title: Method of preparing alpha-olefin polymers
IPC: C08F10/00
Filed: 1972-11-27
Abstract: 1401826 Preparation of polyolefins GULF RESEARCH & DEVELOPMENT CO 27 Nov 1972 [7 Dec 1971] 54714/72 Heading C3P A method of preparing a polyolefin comprises a first step of conditioning a hydrotreated lubricating oil base stock by contacting it with a first Ziegler-Natta type catalyst and hydrogen and a second step of polymerizing an olefin or mixture of olefins having 2 to 20 carbon atoms with a second Ziegler-Natta type catalyst in the presence of the conditioned hydrotreated lubricating oil base stock which acts as reaction medium, the catalysts each comprising a compound of a transition metal of Groups IVB, VB, VIB and VIII at a valence state less than its maximum and an organo-metallic compound of Group II and III metals. In the examples a hydrotreated light neutral oil is treated with (TiCl 3 ) 3 AlCl 3  and a solution of triethyl aluminium in a C 22 -C 23  olefin wax under a hydrogen blanket then hexene is polymerized in the oil in the presence of the hydrogen or under nitrogen.
Patent GB-1369388-A (GB)
Title: Shuttle-less loom
IPC: D03D47/44
Filed: 1972-11-28
Abstract: 1369388 Selvedges; shuttleless looms J MULLER 28 Nov 1972 [3 Dec 1971] 54807/72 Heading D1E A knitted selvedge is produced on a single ply or multiply fabric woven with either one or two weft insertion needles 3, 4 by a selvedge knitting needle oscillating back and forth along the edge of the fabric and an oscillating deflector element 9 which moves the inserted weft thread or threads away from the needle path when a separate selvedge warp thread 12 is used. As shown in Fig. 1 the arm 8 supporting the needle 7, the hook-ended deflector element 9 and an eyed arm 11 controlling the selvedge warp thread are oscillated in synchronism with the two eyed weft insertion needles 3, 4 which are oscillated by a shaft 34. In Fig. 2 (not shown) the active end of the deflecting element is inclined to the plane of the weave and the deflector element may be mounted on the same spindle as the needle arm 8. When producing adjacent ribbons the deflector elements 9 may be actuated by common operating means.
Patent GB-1453388-A (GB)
Title: Silver halide light-snesitive photographic emulsion and material pyrrolidine dicarboxylic acids and esters as light stabilizers
IPC: C07D277/62
Filed: 1974-12-20
Abstract: 1453388 Silver halide emulsions FUJI PHOTO FILM CO Ltd 20 Dec 1974 [21 Dec 1973]  55235/74 Heading G2C A silver halide photographic emulsion includes a compound which inhibits latent image fading and is represented by Formula in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> each represent hydrogen or alkyl having 1 to 4 carbon atoms e.g. methyl. R<SP>6</SP> and R<SP>7</SP> each represent hydrogen, alkyl having 1 to 4 carbon atoms e.g. methyl, or alkoxy having 1 to 4 carbon atoms e.g. methoxy or ethoxy, or R<SP>6</SP> and R<SP>7</SP> can combine to form a condensed ring e.g. a benzene ring.
Patent GB-1215510-A (GB)
Title: Percussive-type photoflash lamp
Inventor: SHAFFER JOHN WILSON
IPC: G03B15/04
Filed: 1968-11-22
Abstract: 1,215,510. Flash-bulbs. SYLVANIA ELECTRIC PRODUCTS, Inc. Nov.22, 1968 [Nov. 22, 1967], No. 55605/68. Heading G2L. In a percussively ignitable flash-bulb the priming charge 16 of fulminating material is disposed at the bottom of the primer cup 12 below the perforated bottom 22 of an anvil 14 and a baffle 28 is located between the bottom of the anvil and the filamentary combustible material 8 in the bulb. The baffle breaks up the high velocity flow of flame and hot gases produced by deflagration of the charge and prevents the material 8 from being compacted at the top of the bulb. A flange 26 on the anvil protects the base 10 of the primer during combustion.
Patent GB-1192079-A (GB)
Title: Method and apparatus for the Manufacture of Shotgun Cartridge Cases of Thermoplastics Material
IPC: B29C57/00
Filed: 1967-12-07
Abstract: 1,192,079. Extruding oriented tubular bodies. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. 7 Dec., 1967 [12 Dec., 1966], No. 55765/67. Heading B5A. Unitary shot gun cases of highly oriented crystalline plastics material, such as polyethylene or polypropylene, are made by extruding a tubular billet maintained at a temperature below its crystalline melting point through an annular die the cross-sectional area of which is smaller than that of the billet and either before or after the extrusion forming a cartridge head upon the billet or extruded tube respectively. In one embodiment, a billet 24, located between block 24 and a plug 26, 27 is extruded, by forward movement of the plug, through a reduced annular die formed between part 25 of the plug and bore 23 of the block. After extrusion, an annular heating element 30 is forwarded around the tube into engagement with the block 31 and the encompassed heat softened length of tube is compression moulded to form the head of the case by a plunger 32. In another embodiment (see Figs. 5 and 6, not shown) a billet having a cartridge head integral therewith is injection moulded and, after cooling, is extruded through a reduced annular die forming part of the injection mould.
Patent GB-1180598-A (GB)
Title: Improvements in or relating to Motor Pump Assemblies
Inventor: GANGLOFF JEAN
IPC: F04D15/00
Filed: 1967-12-08
Abstract: 1,180,598. Dynamo electric machines. J. GANGLOFF. 8 Dec., 1967 [21 April, 1967], No. 56049/67. Heading H2A. [Also in Division F1 An electric motor pump unit used in a central heating system has a sealed stator assembly co-operating with a rotor 10 mounted at one end of a hollow shaft 9 supported in a bearing 8 in a support plate 7 and carrying at its other end pump impeller 12, wherein a check valve 20 is provided within the hollow shaft so that the stator can be removed without draining the system. The stator assembly includes a wound core 1 secured between end plates 2, 3 and secured to the pump body by screws 19. A jacket 5 encloses the rotor and is sealed to end plate 2 and support plate 7 by seal 6. Hollow shaft 9 is supported in bearing 8 housed in support plate 7 and a thrust bearing 11 is provided between rotor 10 and bearing 8. Pump impeller 12 is mounted on end 9a of the hollow shaft and the pump chamber is closed by casing 13 which is secured by screws 17 to plate 7 and sealed by resilient ring 14. When the stator assembly is removed water pressure causes impeller 12 to be pressed against bearing 8 and valve 20 to close so leakage is minimized and rotor 10 is made accessible. In operation, the provision of back blades 12a on impeller 12 relieves the pressure on thrust bearing 11. The pump delivery is regulated by inserting shims 15 between casing 13 and support plate 7 thereby altering the volume of the pumping chamber.
Patent GB-1117520-A (GB)
Title: Device for controlling the output of an excavator or of a device for reclaiming or discharging loose material
IPC: E02F3/26
Filed: 1966-12-16
Abstract: 1,117,520. Piling and reclaiming materials. BETEILIGUNGS - UND PATENTVERWALTUNGS G.m.b.H. 16 Dec., 1966 [17 Dec., 1965], No. 56388/66. Heading B8E. [Also in Division E1] In an excavator or reclaimer in which a constant loading rate of material from an exposed, variably profiled face of deposited material or in which the discharge rate on to such a deposit is to be such as to maintain the profile of the deposit constant, the said rates are maintained by sensors on the machine measuring the profiles of the deposit immediately before and after the zone at which material is being removed from or deposited on to the deposit and using any signal differences between the two sets of sensors to control repositioning of the digging means of the reclaimer, or the speed of the conveying means of the loader to maintain the required loading rate or profile as is applicable. Preferably, the machine is a bucket wheel excavator and the sensors involve mechanical-hydraulic systems, or radiation transmitting and receiving systems.