baber/WOPTO huggingface dataset:
Patent GB-965662-A (GB)
Title: Multiply bag and device for manufacturing same
IPC: B65D30/24
Filed: 1960-11-16
Abstract: 965,662. Making bags. J. BOONE. Nov. 16, 1960 [Nov. 17, 1959], No. 39392/60. Heading B5D. [Also in Divisions B8 and F2] A machine used in the manufacture of multiply bags of the type comprising outer plies of paper enclosing a liner of fluid impervious material the liner being of larger size at least longitudinally than the outer plies; comprises a device for continuously forming a multi-ply tube in which the inner ply is slightly concertinaed. A device for forming a bag section from the tube is also described. A heat sealable web 1 is folded to tubular form round a flat forming plate by means of guides 7, pre-heated at 15, sealed longitudinally by rollers 17 flanked by web feeding rollers 16, and then passed under feeding rollers 18 having a seal cooling roller 19 between them and driven at a speed slower than that of the rollers 16 to produce a reduction in length. Further cooled pressure rollers 14<SP>1</SP> may also be provided. A web 3 of paper formed by adhering together at 10 a plurality of plies, is driven at the slower speed by rollers 13, 13<SP>1</SP> and folded by guide rails 12 about the liner. The multi-ply tube is then cut into bag lengths by a device 14. The tubes are delivered to the bag-forming device shown in Fig. 5. They are fed at 22 with their ends protruding from the sides of the machine and are drawn by a conveyer 23 past pairs of heat sealing rollers 24, 28. Each pair seals one end of the liner in two spaced welds. One end of the bag is provided with a valve 25, Fig. 11, formed by inserting a tube 26 of heat sealable material in it mechanically or by hand. One of the rollers 28 sealing this end is provided with a heating strip 29 to seal the tube 26 to the liner. The bag moves past sewing devices 30 which stitch the ends of the bag between the spaced welds. A reinforcement strip 32 is adhered over each end of the bag thus concealing the stitches. Finally guide members 34, 35 bend down the ends of the bag which is conveyed by belts 36 and dip them in molten paraffin wax in channels 35, Fig. 9, belts 38 discharging the bag; channels 39 are provided to receive wax draining from the ends. The liner may be made wider than the enclosing plies for example by folding round an enlarged plate 12.
Patent GB-1294809-A (GB)
Title: Gas humidifier for a medical respirator
Inventor: SMYTHE GEORGE EDWARD
IPC: A61M16/16
Filed: 1971-08-23
Abstract: 1294809 Gas humidifiers PHILIPS ELECTRONICS & ASSOCIATED INDUSTRIES Ltd 23 Aug 1971 39406/71 Heading AST [Also in Division B1] A gas humidifier for a medical ventilator comprises a water supply chamber 1 having level maintaining means arranged to maintain the surface of water in the supply chamber at a predetermined level 4, and a vaporisation chamber 2 through which gas may be passed via an inlet 11 and an outlet 12, the two chambers being interconnected by a passage 3 below the water level 4 and by an air connection 10 above the level 4 so that the water level in the chamber 2 is the same as that in the chamber 1. The level-maintaining means comprises a water reservoir 5 connected to the chamber 1 via a pipe 6, and a needle valve comprising a needle 8 mounted on a float 9. An overflow outlet 16 is provided which is normally closed by a valve 17 hinged at 18 and connected to a float 19.
Patent GB-839588-A (GB)
Title: Improvements in or relating to reed frames for looms
Inventor: SCHMIDT CLAYTON E
IPC: D03D49/62
Filed: 1957-12-20
Abstract: 839,588. Loom reeds. SCHMIDT MFG. CO. Dec. 20, 1957, No. 39751/57. Class 142(2)  A reed comprises a frame 10, 14 and wires 20, the ends of the wires being embedded in an elastic matrix 22 so that the wires can be displaced and will subsequently regain their original positions. The top and bottom bars of the frame each comprise two parallel bars 10 secured to the member 14 by a rivet 18. The matrix may be a polysulphide liquid polymer, chemically curing elastomer. The matrix may be poured, brushed, or sprayed on to the ends of the wires 20. Springs 24, 28 and rods 26 hold the wires temporarily in position, the rods 26 and springs 24 being withdrawn as soon as the matrix begins to polymerize. Polymerization may occur at room temperature, without shrinkage, or low heating below 130‹F. may be applied.
Patent GB-1500590-A (GB)
Title: Semiconductor laser device and a method for fabricating the same
IPC: H01S5/12
Filed: 1975-09-29
Abstract: 1500590 Semi-conductor lasers HITACHI Ltd 29 Sept 1975 [11 June 1975] 39828/75 Addition to 1461869 Headings H1C and H1K In a distributed feedback heterostructure semi-conductor laser, the optical confinement region 3 comprises a laser active region and two semi-conductor layers positioned sequentially on one major surface of the active region, while the distributed feed-back is effected by a periodically corrugated interface located either between the two semi-conductor layers, Figs. 3 and 4, or at the surface of the layer furthest from the semi-conductor region, Figs, 1A, 2 and 4. Additionally the band gap of the semiconductor layer nearest the active region is wider than that of the active region, while the band gap of the other semi-conductor layer is wider than or equal to that of the active region. In the embodiments shown the band gaps are determined by the proportion of aluminium in a GaAlAs semi-conductor structure having an N-type GaAs active region. Other suitable semi-conductor structures may be formed of GaAlAsP, GaAlAsSb, InGaP and InAlAs. Fig. 1a shows a double heterostructure in which semi-conductor layers 2 to 9 are formed by liquid phase epitaxy on an N-type GaAs body 1, the optical confinement region 3 comprising a P-type GaAs laser active region 4, a P-type Ga 0À83 Al 0À17 As layer 5 and a P-type Ga 0À93 Al 0À17 - As layer 6. This region is sandwiched between an N-type layer 2 and a P-type layer 8 both of a lower refractive index and formed of Ga 0À7 Al 0À3 - As. The corrugated distributed feedback interface 7 is located between layers 6 and 8, and is formed by applying photoresist to layer 6, producing interference fringes by directing ultraviolet light from two lamps on to the photoresist, developing and etching. An outer semi-conductor layer of P-type GaAs is also provided together with a gold electrode 10 containing Ge and Ni and a chromium and gold electrode 11. In a modification, Fig. 2 (not shown), a single heterostructure is provided by omitting layer 2. Fig. 3 shows a double heterostructure in which the corrugated distributed feedback interface 7 is provided between semiconductor layers 5 and 6 in the optical confinement region. Two such interfaces 17, 18 are used in Fig. 4, the optical confinement region 3 extending from the interface 18 to the boundary between an N-type Ga 0À93 Al 0À07 As layer 12 and an N-type Ga 0À7 Al 0À3  layer 2, laser emission being produced by an active region 14. Two outputs of different wavelengths may be produced simultaneously by forming the two corrugations with different periodicities. Suitable dopants are Te or Sn for N-type and Ge, Si or Zn for P-type.
Patent GB-1445093-A (GB)
Title: Machines for cleaning carpets and the like
IPC: A47L11/38
Filed: 1972-08-26
Abstract: 1445093 Cleaning carpets, floors, walls, &c CARPETRONIC Ltd 14 Sept 1973 [26 Aug 1972]  39899/72 Heading A4F In a machine for cleaning carpets, floors, walls, upholstery or the like water is supplied via an electric water heater to a system for delivering the heated water via a nozzle outlet on to a surface to be cleaned, and including an intake nozzle of a suction system for drawing the used water into a collecting tank, and liquid detergent is fed into the water delivery system from a reservoir. Water is supplied via an inlet pipe 25 to a tank 20 divided by a horizontal apertured partition 21 and containing a main electric heating element 27 and an optionally used auxiliary heating element 32, both controlled by a thermostat 31. Electrical probes 28, 29 control a solenoid inlet valve to maintain the water level in the tank 20 between desired limits. Water is drawn by a pump 40 via a pipe 36 from the heating tank 20 and receives liquid detergent from a tank 43 via a T-piece 39 before passing by a hose (45) Fig. 1, (not shown) to a discharge nozzle in a cleaning head (15). The latter contains a suction nozzle connected by a further hose (46) to a collecting tank (14) coupled by a hose (62) to the inlet 61 of a suction pump 60. The tank (14) is mounted on a wheeled chassis (13) separate from but attachable to the wheeled chassis 10 on which the water heating tank 20, and pumps 40, 60 are mounted, each chassis having a handle 75 or (76).
Patent GB-1120097-A (GB)
Title: Improvements in or relating to electrical position resolver arrangements
Inventor: ELLIS ALFRED BRIAN EDWIN
IPC: G06F3/033
Filed: 1966-09-07
Abstract: 1,120,097. Writing telegraphs. MARCONI CO. Ltd. June 26, 1967 [Sept. 7, 1966], No.40056/66. Heading G1N. The co-ordinates of position of a probe P, Fig. 2, which is capacitively coupled through an insulating layer to a conductive surface carrying electrodes X1 X2, Y1, Y2, are obtained at 14, 16 by measuring respectively the amplitude ratio of the two components of the probe output signal having the frequencies f 1 , f 3 , which are the frequencies of voltage applied to electrodes X1 X2, and the amplitude ratio of the two components of the probe output signal having the frequencies f 2 , f 4  of voltages applied to the other electrodes, Y1, Y2. Each voltage is applied to one electrode of a pair via filters 1 and 2, 3 and 4, &c. which reject the two frequencies of the electrodes of the other pair. Tuned amplifiers 9, 10, 11 and 12 select each frequency respectively and apply them to two ratio measuring circuits 13, 15.
Patent GB-1060069-A (GB)
Title: Improvements in or relating to phenylethanolamines
IPC: C07C/
Filed: 1963-10-14
Abstract: The invention comprises compounds of the formula <FORM:1060069/C2/1> wherein R1 is an alkyl group containing at most 4 carbons, R2 is hydrogen or an alkyl group containing at most 2 carbons and R3 is hydrogen or an alkyl group containing at most 2 carbons, in the form of the racemic mixture, and physiologically acceptable salts thereof. They may be obtained from a ketone of the formula <FORM:1060069/C2/2> wherein X is a halogen atom, by converting the carbonyl group of the ketone into a -CHOH group by reduction and converting the halogen atom into an isopropylamino group by amination with isopropylamine and, if a salt is required, forming an acid addition salt in which the anion is physiologically acceptable with the resulting isopropylamino group.  The reduction step may either precede or follow the amination step.  The compounds have pharmaceutical properties and may be administered by injection or orally, generally in the form of compositions comprising the active substance in association with a pharmaceutical carrier.  The compounds are stated to be blocking agents for b -receptors.
Patent GB-1503366-A (GB)
Title: Additives for lubricating oils and fuels
IPC: C10N40/25
Filed: 1975-10-03
Abstract: 1503366 Lubricants; fuels ETHYL CORP 3 Oct 1975 [4 Oct 1974] 40607/75 Headings C5F and C5G [Also in Division C3] An additive prepared by reacting (a) an aliphatic hydrocarbon substituted phenol wherein the hydrocarbon substituent has a molecular weight of at least 650, (b) an aldehyde, (c) ammonia or an amine having at least one primary or secondary amino group, (d) an alkylene oxide and (e) phosphorus pentasulphide, can be added in a dispersant or antiwear amount, generally 0À1 to 10% wt., to a lubricating oil composition, or to a liquid hydrocarbon fuel composition, or to a composition comprising a synthetic hydrocarbon oil and optionally a mineral lubricating oil. The hydrocarbon substituent of the phenol is preferably a polyolefin, particularly a homo- or copolymer of ethylene, propylene or isobutylene. The starting phenol is preferably phenol; the aldhyde may be formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, iso-butyraldehyde or glyoxal; the amine may be an alkylamine, an alkylene polyamine, an aromatic amine, an acid-substituted polyalkylene polyamine, a heterocyclic amine, an alkanolamine, a condensation product of urea or thiourea and an alkylene polyamine; or an -N,N- dialkyl-alkane diamine. The additive is generally used in the form of a concentrate containing 50-75% wt. of additive and the rest a diluent oil. The liquid hydrocarbon fuel may be gasoline. The lubricating oil may be mineral or synthetic, e.g. synthetic esters such as C 6 -C 10  alkanol esters of aliphatic dicarboxylic acids, and complex esters made by the reaction of polyols, polycarboxylic acids, monocarboxylic C 4 -C 10  aliphatic acids and monohydric alkanols. Suitable synthetic hydrocarbon oils are those made by polymerizing olefinically unsaturated hydrocarbons. The additives can also be used in synthetic alkylbenzene oils. The lubricating oil may contain conventional additives such as zinc dialkyldithiophosphates, calcium or magnesium alkarylsulphonates, phosphosulphurized olefins and barium salts thereof, V.I. improvers, e.g. polylauryl methacrylates, polybutenes, styrene-butene copolymers or ethylenepropylene copolymers, antioxidants and metal phenates. In Example 4 a mineral lubricating oil composition is prepared from a mineral lubricating oil, an ethylene-propylene copolymer V.I. improver, zinc dialkyldithiophosphate, overbased calcium and magnesium alkaryl sulphonates, 4,4<SP>1</SP>- methylenebis(2,6-di-tert-butylphenol) as antioxidant and an additive prepared by reacting a polybutene (M.Wt. 950)-substituted phenol, diethylene-triamine, paraformaldehyde, ethylene oxide and phosphorus pentasulphide.
Patent GB-1439887-A (GB)
Title: Lead base cadmium-tin alloy useful for forming battery components lead base calcium-tin alloy and use thereof
IPC: H01M50/55
Filed: 1974-09-18
Abstract: 1439887 Lead base alloy GOULD Inc 18 Sept 1974 [3 Oct 1973] 40609/74 Heading C7A [Also in Division H1] An alloy, for use as a terminal post, an intercell connector, a joining strap or a welding alloy for joining grid lugs, in a lead-acid storage battery. comprises: - Cd 0À4-1À4% Sn 0À4-1À4% the balance, apart from impurities, being Pb, wherein the Cd and Sn are present in the form of a eutectic dispersed through a lead matrix.
Patent GB-836184-A (GB)
Title: Process for the production of boron hydrides
IPC: C01B6/10
Filed: 1958-12-17
Abstract: Boron hydrides are prepared by reacting solid metal borohydride with a boron halide at from 100-600 DEG  C. in the absence of any diluent medium.  Halides may be trifluoride, trichloride, tribromide, or tri-iodide, and borohydrides may be Li, Na, K, Ca, Ba, Sr.  The halide may be passed through the borohydride in a thin layer, or circulated by conveyer, and the products passed through a solid CO2 trap before a liquid N2 trap where the boron hydrides collect. Mixtures of pentaborane, dihydropentaborane, tetraborane, decaborane, and diborane are produced.
Patent GB-1264340-A (GB)
IPC: C07C43/295
Filed: 1969-08-15
Abstract: 1,264,340. Phenylalkanoic acids and derivatives. ELI LILLY & CO. 15 Aug., 1969 [15 Aug., 1968 (2); 28 May, 1969], No. 40971/69. Heading C2C. Novel compounds I in which X is O or S; Y 1  is H, OH, NH 2 , NO 2 , halo, CH 3 , C 2 H 5 , 1-3C alkoxy, CH 3 SO 2 , CH 3 SO 2 NH, CF 3 , CH 9 CONH, CH 3 S or phenoxy; R 1  is H, 1-5C alkyl, 2-5C alkenyl, 2-5C alkynyl or 3-6C cycloalkyl and when the moiety C 6 H 5 X is in the para position, n is 0; Y 2  is H, OH, halo, 1-5C alkyl or 1-3C alkoxy; and both of Y 1  and Y 2  cannot be H when R 1  is H or CH 3 ; Z is (a) COOR 2  (R 2  is H, 1-5C alkyl, di-(1-3C alkyl) amino-(1-4C alkyl) or a metal or optionally substituted ammonium cation), (b) CON(R 3 ) 2  (R 3  is H, OH, 1-5C alkyl, cyclopropylmethyl or CH 2 COOR 2 ), (c) CH 2 OR 4  (R 4  is H, 1-5C alkyl, acetyl, propionyl, carbamyl, N-methyl or N,N-dimethyl-carbamyl or 3-6C alkoxyalkyl, or (d) tetrazolyl; and when the moiety C 6 H 5 X is in the meta position, n is 0-3; Y 1  is as defined above, but is H when Y 2  is OH; Y 2  is H, OH halo, methyl or ethyl, but is H when Y 1  is OH or 1-3C alkoxy; Z is as defined above; R 2  is 2-(3-phenyl-X-phenyl) propyl in addition to the values given above and Z may also be (e) when n is 1-3 N(R 5 ) 2  (R 5 =(1) H, 1-5C alkyl, cyclopropyl or cyclopropylmethyl or (2) acetyl, propionyl, or N- methyl or N,N-dimethylcarbamyl) and their salts are prepared by methods well known in the art for preparation of phenylalkanoic acids and their derivatives. Intermediates isolated are 3-phenoxy-acetophenone; 4 - chloro - 5 - methyl - diphenyl ether; 2 - chloro - 5 - methyl - diphenyl ether; 4 - fluoro- 5 - methyl - diphenyl ether, 4 - methyl - 5 - phenoxyacetophenone, and 2 - methoxy - 5 - phenoxyacetophenone all prepared by an Ullman diaryl ether synthesis. Pharmaceutical compositions comprise a compound I together with a suitable excipient and are administered as analgesics and antiinflammatory agents.
Patent GB-906013-A (GB)
Title: Improvements relating to fluid pressure apparatus including an abutment movable by the application thereto of fluid under pressure
Inventor: WEBBER RONALD DOUGLAS
IPC: B61J3/08
Filed: 1958-12-19
Abstract: 906,013. Pneumatic single stroke apparatus. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Dec. 17, 1959 [Dec. 19, 1958], No. 41051/58. Class 8(2). A sequentially controlled apparatus for pneumatic rams, e.g. for propelling mini cars and the like in collieries, comprising a cylinder T, Fig. 5, with a piston Q having a piston rod connected to a pushing arm, the piston being driven by compressed air from a supply U through the control apparatus, Fig. 3, comprising an inlet K permitting the air to pass through an adjustable choke F, to a passage P and thence to the piston Q, with sufficient pressure to overcome bore friction and enable the said piston to complete the first stage of its forward stroke. At the same time air passing through a fixed charging choke G increases the pressure in the timing reservoir R until at pressures predetermined by the respective cross sectional areas of the pistons C 1  and C 2  or the compressive stresses in that co-operating springs the pistons sequentially open the auxiliary valves Bi and B 2  respectively, the poppet valve D opening and the discharge poppet valve E being held closed under the pressure of air from the inlet K, to augment the flow of air through the adjustable choke F, to the piston Q enabling the piston at or after completion of stage 1 to carry through and complete stages 2 and 3 of its stroke. A single delay mechanism, Fig. 1 (not shown), may be used but preferably a double delay mechanism, Fig. 3, is used with the addition of a further similar delay unit connected to the inlet U bar, its output connected, via a double check valve CV, to the other side of the piston Q so that at a predetermined time, pressure is transmitted to the other side of the piston to produce an opposing thrust and the fourth and last stage of the forward stroke, which is one of reduced thrust. During the discharge stroke of the ram the exhaust passes along passage P through the check valve E and the supply control valve to atmosphere. The schematic arrangement of the complete apparatus is shown in Fig. 5. The restrictive orifices F 2  and F 3  are formed by the adjustable stop S 1  and S 2  co-operating with the auxiliary valves B 1  and B 2 , whose uncontrolled operation is prevented by the check valves E 2  and E 3 . The charging choke G is preferably replaced by a check valve, having a permanent vent and which opens when the pressure in the inlet K falls below that in the timing reservoir R, thus preventing the possibility of an accidental fresh stroke being made before dissipation of the pressure in said timing reservoir.
Patent GB-937595-A (GB)
Title: Improvements in and relating to the production of curling tongs
IPC: A45D1/06
Filed: 1961-11-16
Abstract: 937,595. Curling tongs. I. KOHL-RECKNAGEL. Nov. 16, 1961, No. 41148/61. Class 131. [Also in Group XXII] A curling tongs comprises one part with a channel-shaped beak 3a and a co-operating interfitting part with a pointed beak 3b, each part being formed by hot die-forging in two operations. A profiled blank 1, 2, 3, Fig. 1, cut from flat steel plate is heated to 1000-1100‹ C. and pressed in a first die which partly forms the channel beak 3a and the handle portion la. The workpiece is then finish forged in a second die whilst retaining its heat and the central portion 2a is then pierced. A similar workpiece is forged in two stages to form the pointed beak part 3b whose central portion has pointed nipples 6, 7. The two parts are interfitted with the nipples 6, 7 projecting into the central opening of the channel-shaped part. Pressure is then applied to close the walls of the opening on to the nipples which thus form a pivot for the two parts. Finally, the tongs are trimmed and ground and polished and insulated handles may be fitted.
Patent GB-1512378-A (GB)
Title: Pharmaceutical formulations
IPC: A23K20/195
Filed: 1974-09-21
Abstract: 1512378 Fluid pharmaceutical composition BEECHAM GROUP Ltd 16 Sept 1975 [21 Sept 1974] 41231/74 Heading A5 A fluid pharmaceutical composition comprises a medicament, an edible oil and a natural or synthetic clay which has been rendered more easily dispersible in edible oil by replacement of inorganic cations by organic cations. The composition may be used to treat neonatal scour in piglets. The medicament may be a penicillin.
Patent GB-1009799-A (GB)
Title: Covering assemblies particularly for seats
Inventor: PEARCE ERIC NORMAN
IPC: A47C7/34
Filed: 1964-10-09
Abstract: 1,009,799. Upholstery. FORD MOTOR CO. Ltd. Oct. 9, 1964, No. 41258/64. Heading A4M. A cover assembly for a seat comprises two layers 1, 2, e.g. of foamed polyvinyl chloride, and a fastener, e.g. stud 5, having a shank 5a projecting through the inner layer 1 and a head 5b located in a pocket formed between the layers 1, 2 by bending A these layers adjacent the head 5b. The inner layer 1 is on a linen base and the outer layer 2 is covered by a sheet 3 of expanded polyvinyl chloride on a woven base. Foamed polyether pads 4 are sandwiched between the layers 1, 2. The stud shank 5a is barbed to receive a clamping washer 10 or a press fit after being passed through seat padding 7 and canvas 6 layers supported on metal springs 8 mounted on a metal frame 9. Alternatively, the stud shank may be unbarbed and split to facilitate clamping by outwardly bending the split portions. In a preferred method of manufacturing the cover assembly, the layers 1, 2 are bonded A around the stud 5 by being clamped by electrodes and subjected to high frequency dielectric heating.
Patent GB-1015170-A (GB)
Title: Magnetohydrodynamic generating system
IPC: H02K44/08
Filed: 1964-10-13
Abstract: 1,015,170. Generators operating by electromagnetic interaction with fluids. WESTING- HOUSE ELECTRIC CORPORATION. Oct. 13, 1964 [Oct. 23, 1963], No. 41720/64. Heading H2A. A magnetohydrodynamic generator has an annular duct formed by concentric outer and inner tubular walls and with electrodes disposed on the walls and means for producing a circumferential flux in the duct. Generating duct portion 10 of the system shown comprises concentric cylindrical inner and outer walls 14, 16 of stainless steel lined with zirconia, with electrode layers 22, 24 of zirconium boride or fluidcooled metal, bounding annular duct 42. Inlet and outlet extensions 26, 28 are connected to the generating portions through insulating spacers 30, 32. A circumferential magnetic field is produced in the duct by current flowing in longitudinal wires 44 housed in the inner tubular wall space 12. Seeded combustion products from combustion chamber 11 are used as the working fluid and the seed may be reclaimed prior to exhaust. In a modification the duct walls may be cone-shaped to provide a duct with increasing cross-sectional area. A number of ducts may be connected in electrical series and use a common magnetizing conductor.