baber/WOPTO huggingface dataset:
Patent GB-1460220-A (GB)
Title: Heater for vehicles
IPC: B60H1/22
Filed: 1974-12-06
Abstract: 1460220 Air heating stoves W BAIER W BAIER L SCHOBER and E SCHLUMPRECHT 6 Dec 1974 [11 Dec 1973 9 July 1974] 52827/74 Heading F4S In an air heater for vehicles having a tubular combustion chamber 19 surrounded by a cylindrical heat exchanger comprising an inner casing 7 closed at one end and an outer casing 6, and a cylindrical equipment chamber 1 disposed coaxially of the combustion chamber 19 and receiving a burner unit 1a, the outer casing 6 of the heat exchanger and the peripheral wall 5 of the equipment chamber 1 are a unitary casting. Air to be heated supplied by a blower 21 passes through the space between the inner and outer casings 7 and 6 before leaving through an outlet 23. The inner casing 7, which may be cast integrally with the outer casing 6 and the peripheral wall 5, has ribs 24 on both its internal and external surfaces. The burner unit 1a, which includes an electric motor 2, a blower 3 for combustion-supporting air and a fuel feed 4, may be disposed in a casing (35, Fig. 4, not shown), which is introduced, as a preassembled tested unit, into the equipment chamber, the unit being secured to a flange (36) at the open end of the inner casing 6 by means of through bolts (37). A chamber 9 for receiving control facilities 10, 11 is defined in part by a lateral extension 8 of the unitary casting, the chamber 9 being closed by a cover 12. Spigots 13, 15 and 16 are formed in the unitary casting for receiving a spark plug 14, for the supply of combustion supporting air, and for discharge or combustion gases respectively. The inner casing 7 is provided with a lining 25 or a heat shield (54, Fig. 4), at its closed end.
Patent GB-1068491-A (GB)
Title: Improvements in or relating to cutting and sawing blades and methods of and apparatus for making same
IPC: C23C4/08
Filed: 1964-12-31
Abstract: <PICT:1068491/C6-C7/1> Coating with metals.  Cutting and sawing blades consisting of a metal disc 10 with a peripheral layer of hard high temperature metallic cutting material are made by assembling a plurality of discs 10 between spacers 12, which overlap the discs, on a rotating shaft 16, heating the assembly to a temperature of at least 1000 DEG F. and flame spraying the metallic cutting material whilst rotating the shaft 16.  The material may be W, Ta, W-Co alloy, Mo, Nb, Hf, Zr, V, Co, Ni, Re, Ir, Rh, Pt, Th, Pd, and Os, and may include borides and carbides.  The flame spraying unit 28 may be used to pre-heat the assembly, and is moved along the assembly by a threaded shaft. The spacers 12 and shaft 16 are coated with a release agent such as polished chromium or magnesium oxide.  The flame spraying may be carried out in an inert atmosphere.  Alloys.  A suitable metal for the disc 10 is an alloy comprising 41-44% cobalt, 12-14% nickel, 19-21% chromium, 2-2.8% molybdenum, 1.55-1.7% manganese, 2.3-3.3% tungsten, 0.02-0.06% beryllium, 0.17-0.23% carbon, the remainder being iron.
Patent GB-1429389-A (GB)
Title: Process for the preparation of aromatic hydroxylamines from  nitroso derivatives
IPC: C07C239/10
Filed: 1973-11-15
Abstract: 1429389 Aromatic hydroxylamines RHONEPOULENC SA 15 Nov 1973 [16 Nov 1972] 53097/73 Heading C2C Aromatic hydroxylamines of the formula wherein R is H, a straight or branched alkyl, cycloalkyl, phenyl, phenylalkyl or alkylphenyl radical, or wherein two adjacent R radicals together with the 2 C atoms of the benzene ring to which they are attached can form a benzene ring, and n is 0 or an integer from 1 to 5; are obtained by hydrogenating with H 2  in the presence of Pt and an organic base of pK B  less than 3À2 at 25‹ C., an aromatic nitroso compound of the formula the ratio by wt. of the organic base to the nitroso compound being greater than 0À1 : 1. The nitroso compound may be used partially or completely in the form of its dimer. Specified bases are diethyalmine, diisopropylamine, piperidine and coniine.
Patent GB-1244539-A (GB)
Title: Improvements in or relating to tape record medium
IPC: G11B15/295
Filed: 1969-10-30
Abstract: 1,244,539. Record-tape rolls. NEWELL INDUSTRIES Inc. 30 Oct., 1969 [4 Nov., 1968], No. 53129/69. Heading G5R. The outermost turn 18 of a tape roll 11 includes portions 19, 21 which extend radially inwards and grip the opposite faces of the roll, to prevent spillage of tape. After passage through tape transport apparatus of the type described in Specification 1,144,647, the leader 18 grips the take-up hub (29, Fig. 4) and its tapered leading end 22 is at least partly received in a complementary relieved portion 33 at its trailing end. The leader 18 may be followed by a second leader (36, Figs. 5 to 7), of the same width as the rest of the tape (37) but greater thickness so as to hold the leader 18 clear of the capstan flanges (30) during transport of the recordbearing portion of the tape (37).
Patent GB-1323306-A (GB)
Title: Method of preparing rare earth metal orthovanadate phsophors
IPC: C09K11/77
Filed: 1970-11-09
Abstract: 1323306 Luminescent materials WESTING- HOUSE ELECTRIC CORP 9 Nov 1970 [18 Nov 1969] 53198/70 Heading C4S A method of making LnVO 4  Ln<SP>1</SP> phosphor wherein Ln is Y and/or La and/or Gd and Ln<SP>1</SP> is at least one other lanthanide series rare earth metal, comprises dissolving vanadium oxide in cone. HCl, mixing with an HCl solution containing Ln and Ln<SP>1</SP> ions with a vanadyl radical to total Ln plus Ln<SP>1</SP> ion ratio of at least 1 : 1. A basic solution of an alkali metal perborate and either ammonium hydroxide or an alkali metal hydroxide is added at a constant rate, the gram-mol ratio of hydroxyl radical to perborate being from 10 : 1 to 1 : 1, e.g. 8 : 1, until the pH is at least 7À5, e.g. 10À5. The resulting mix is heated, e.g. to 70 C. to precipitate the orthovanadate, the precipitate being calcined at 800 to 1400 C. for example in an oxygen containing atmosphere and washed to remove residual soluble products. A specific example is given, and activators specified are Eu, Dy, Sm, Ce and Tb.
Patent GB-1133950-A (GB)
Title: Improvements in or relating to derivatives of nitrofuran
IPC: C07D307/73
Filed: 1967-11-22
Abstract: 1,133,950. Nitrofuran derivative. NORWICH PHARMACAL CO. 22 Nov., 1967 [5 Dec., 1966], No. 53267/67. Heading C2C. The novel compound N<SP>1</SP>-cyano-S-nitro-2- furamidine is prepared by condensing ethyl 5- nitro-2-furimidate hydrochloride with cyanamide in the presence of an inert solvent and a basic condensation agent. Antibacterial compositions comprise the novel compound together with pharmaceutically acceptable diluents or carriers.
Patent GB-1374143-A (GB)
Title: Breath testing system
IPC: G01N33/497
Filed: 1972-02-16
Abstract: 1374143 Breath testing system BORGWARNER CORP 16 Feb 1972 [23 April 1971 (2)] 53409/73 Divided out of 1374141 Heading G1N [Also in Division A5] The description is identical to that of the Specification 1374141 but the claims relate to apparatus for determining the alcohol content of an uninterrupted flow of breath through a tube.
Patent GB-1367014-A (GB)
Title: Musical instrument keying assembly
IPC: H01H1/029
Filed: 1972-11-20
Abstract: 1367014 Electrophonic musical instruments OPSONAR ORGAN CORP 20 Nov 1972 [24 April 1972] 53545/72 Heading G5J [Also in Division H1] In a switch assembly for the keyboard of an electronic musical instrument, a conductive strip 26, Fig. 2, of resilient material such as silicone rubber impregnated with carbon is deformed to give a progressively increasing area of engagement with wire contacts 22, 24 mounted on a support base 28. The strip 26 is permanently connected as one input to an amplifier (18), Fig. 1 (not shown), and is supported above an apertured separator plate 30 by means of an earthed resilient conductive strip 38 of similar material to which it is fixed by a double-sided adhesive insulating tape 40. The strips 26 are progressively rolled edgewise on to the wires 22, 24 by leaf springs 45, Fig. 3, fixed to pivotedkeys 34 whereby the full width of the strips 26 is not engaged until the keys 34 and springs 45 are fully depressed. The progressive engagement is stated to reduce microphonic noise. In a modification the switches are actuated by chord buttons (70) Fig. 10 (not shown) which depress the ends of spring (76) cut integrally in a spring strip (78) and mounted above the assembly. The contacts may be lubricated with graphite to reduce sticking and consequent microphonic noise.
Patent GB-1171685-A (GB)
Title: Biaxially Oriented Polymeric Films
Inventor: BUTEUX RICHARD HAROLD BARCLAY
IPC: C08G/
Filed: 1967-04-20
Abstract: 1,171,685. Coated sheet. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 March, 1968 [20 April, 1967; 24 Nov., 1967], Nos. 18284/67 and 53637/67. Heading B2E. [Also in Division B5] A film of biaxially oriented polyethylene-1, 2-diphenoxyethane-4, 4'-dicarboxylate of thickness 0.00005-0.0075" (see Division B5) is provided with a slip coating of silica, an aluminosilicate, or PVC or polymethyl methacrylate of particle size 0.1-2.0 microns.
Patent GB-1148116-A (GB)
Title: A belted tyre
IPC: B60C19/00
Filed: 1966-12-08
Abstract: 1,148,116. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. 1 Dec., 1966 [27 Jan., 1966], No. 53827/66. Heading B7C. A pneumatic tyre with radial cord carcass has a crown reinforcement of an inextensible belt, e.g. of bands, wires or like reinforcing plies, which extends substantially over the width of the tread strip in the peripheral direction of the tyre, and the effective diameters of the edges of the belt differ. The belt may be laterally tapered, being thicker at one edge than the other, or have additional reinforcing plies along one edge, or be asymmetrically arranged. The tyres may be mounted on a vehicle so that the belts arranged on opposite tyres have their edges with greater effective diameter symmetrically mounted relative to the central longitudinal axis of the vehicle.
Patent GB-1189465-A (GB)
Title: All NPN transistor DC amplifier
IPC: H03F3/30
Filed: 1967-11-27
Abstract: 1,189,465. Transistor amplifying circuits. GENERAL ELECTRIC CO. 27 Nov., 1967 [14 Feb., 1967], No. 53939/67. Heading H3T. An all-NPN transistor D.C. coupled pushpull amplifier comprises an output stage including two transistors 14, 15 connected in series and driven at Class B by a phase-splitter stage 13 driven in turn by a further stage 12. The audio amplifier shown is driven by a piezoelectric crystal pickup or F.M. tuner 11 through loudness control 25, and drives a speaker 18. NPN transistors are used, in preference to PNP, because of their lower leakage currents, leading to better temperature stabilization. Negative feedback resistor 27 provides stabilized bias for transistor 12 and also linearizes the characteristics. Linearizing A.C. feedback is also provided by the path including capacitor 31 and resistor 32. Capacitor 31 ensures greater feedback for the higher frequencies to compensate for the lesser attenuation of these frequencies by the series coupling capacitors 24, 19 in the through-path. This feedback path also reduces both cross-over and harmonic distortion. Positive bootstrap feedback is provided by capacitor 45, and this capacitor, together with resistor 23, capacitor 19 and the coils of speaker 18, provides a low impedance path to ground to reduce the ripple in the power supply. Diode 46 aids in cross-over switching: with transistor 14 on, diode 46 is on, applying a low voltage to the base of transistor 15 to keep transistor 15 cut-off, and with transistor 14 off, diode 46 is also off and no current is shunted from the base of transistor 15. Modifications.-In Fig. 3 (not shown) feedback path 27 is replaced by a resistor connected between the collector of transistor 14 and the base of transistor 12, a further resistor being connected in series between the collector of transistor 14 and emitter of transistor 15. In Fig. 4 (not shown) the base bias of transistor 13 is stabilized by a resistor connected between the base and emitter of transistor 12 and providing an impedance between base and emitter substantially less than that through transistor 12 so that variations in the impedance of transistor 12 have little effect on the bias of transistor 13. Also in Fig. 4, a half-wave rectifier supplies power to transistors 14, 15 and transistors 12, 13 which are fed from the output and input sides, respectively, of the filter so that transistors 12, 13 are fed with a greater voltage than transistors 14, 15 and hence greater signal outputs may be provided by transistors 12, 13. In Fig. 5 (not shown) transistor 12 is connected in common emitter mode, the emitter being connected to ground through a temperature compensating diode (77) and a resistor: the base of transistor 14 being biased from a tap on the emitter resistor of transistor 13. The overall negative feedback path 31, 32 is connected to the emitter of transistor 12 through the diode (77). Reference has been directed by the Comptroller to Specification 1,129,767.
Patent GB-1426882-A (GB)
Title: Apparatus for applying plastics to discontinuous pieces of material
IPC: B32B37/00
Filed: 1972-11-22
Abstract: 1426882 Coating pelts; coating apparatus SIDLAW INDUSTRIES LTD 13 Nov 1973 [22 Nov 1972] 54113/72 Headings B2E and B2L Apparatus for applying a layer of plastics material (especially PVC) to pelts, i.e. discontinuous pieces of material and particularly of carpeting, comprises an endless conveyor belt, means for spreading a coating of liquid plastics on to the belt means for laying a pelt onto the coating, a heating device such as a hot plate for bonding the plastics and pelt by heating them through the belt, optional cooling plates, a stripping blade for stripping the cured coating and associated pelts from the belt and optionally a rotary cutter for the production of carpet tiles. The endless belt may be of woven glass fibre coated with PTFE or silicone resin and the plastics may be applied by means of an adjustable doctor blade for varying the thickness of the coating. The pelt laying mechanism may comprise a pivotally mounted flat board having automatically operated spring clip assemblies for releasing the pelts.
Patent GB-1447387-A (GB)
Title: Furniture connector
IPC: F16B12/20
Filed: 1973-11-21
Abstract: 1447387 Furniture joints JULIUS BLUM GmbH 21 Nov 1973 [12 Dec 1972] 54114/73 Heading F2M In a furniture joint of the kind wherein a casing 1, e.g. of plastics material, is let into one furnitue element 3 and a dowel pin 4, fitted into an edge portion of another furniture element 5, is adapted to be received in a socket provided eccentrically in the casing, the dowel pin having a head portion engaged by a retaining device, e.g. a rotatable cam 6, to lock the dowel pin in engaged position within the socket, the casing is provided with a slot or slots 9, Figs. 2 and 3, or with other locating surfaces, e.g. the edge surfaces 10 of a raised portion 11, Fig. 5, for engagement by a tool of a machine (not shown) for inserting the casing in a recess in the element 3, so that the casing is automatically aligned during such insertion. Preferably, the casing and dowel pin have integral ribs 7 of saw-tooth form to retain them firmly in the elements 3, 5.
Patent GB-541247-A (GB)
Abstract: 541,247. Electric hair-waving appliances EUGENE, Ltd., and SCHULZ, V. May 17, 1940, Nos. 8799 and 11157. [Class 39 (iii)] A metal tube 1 flanged at 1a and having a central metal collar 1b carries a number of layers of resistance wire 2 insulated from each other and the tube by mica sheets 3. The assembly is bound with wire which also forms a connection between the wire 2 and one of the lead-in wires. A conical outer tube 1d is pressed into a groove on the collar 1b. The connecting wires are insulated by glass tubes where they pass through the lead-in tubes 8, and are connected to the conductors of a flexible cable 5. A sheet of mica paper is applied around the lead-in tubes to exclude moisture. A moulded cover 10 is screwed to a moulded body portion 9 which has a recess to receive the connecting wire, the recess being closed by a side cover 11 having a tongue 11b to lock it to the other parts of the casing. An earthing strip 15 may be applied to the tube 1. A rubber sleeve 13 encloses the cable 5 and passes over the lead-in part 12 of the body 9, while a flange 13a engages a corresponding groove within the part 12. A modification is described in which the tube 1 is of porcelain. Specifications 246,021 and 335,514, [both in Class 39 (iii)], are referred to.
Patent GB-1147509-A (GB)
Title: Metal shingle construction
Inventor: MERRILL CLIFFORD CHARLES
IPC: E04D1/18
Filed: 1967-11-28
Abstract: 1,147,509. Roofing elements. C. C. MERRILL and C. E. STROMBECK. 28 Nov., 1967, No. 54205/67. Heading E1B A metal shingle comprises a rectangular body portion 16, integral wedge shaped sides 17 and 18, a U-shaped channel 19 integral with side -18, and a rectangular front wall 23, interlocking being provided by a holding strip 26 projecting from the lower edge of the front wall and a strip 28 having upturned portions 31 projecting from the top edge 29. The shingles are secured to a roof sheathing by nails through holes 32, mastic being applied to the rear of the strip 26 and the channel base 34 to provide a seal.
Patent GB-1216620-A (GB)
Title: beta-HYDROXYETHOXY CAMPHANE
IPC: C07C323/25
Filed: 1967-12-28
Abstract: 1,216,620. Substituted camphane. SCM CORP. 28 Dec., 1967 [9 Jan., 1967; 30 Jan., 1967], No. 54524/69. Divided out of 1,204,520. Heading C2C. The invention relates to 2-(#-hydroxyethoxy)- camphane which is prepared by reacting camphene with ethylene glycol.
Patent GB-1124470-A (GB)
Title: Improvements in ventilating systems
Inventor: ROBERTSON ROBERT ANDERSON
IPC: F24F13/08
Filed: 1965-03-24
Abstract: 1,124,470. Ventilators. A.I.R. (AIR CONDITIONING & REFRIGERATION) Ltd. 17 Dec., 1965 [24 March, 19651, No. 54725/65. Heading F4V. An extraction ventilator comprises a box 11 having a pipe 12 connected thereto and containing a sheet-metal plate 15 provided with diagonal slits 17 which divide the plate into four triangular portions 18. The latter maybe bent to vary the flow cross-section of the plate which has a central aperture 16 permittng some air flow at all times. When the portions have been adjusted to their desired positions the front of the box is covered by a grille (21), (Fig. 2, not shown), to prevent further adjustment of the plate. Pipe 12 is connected to an extraction duct 23, 24.
Patent GB-1410628-A (GB)
Title: Electric cables
IPC: H01B9/02
Filed: 1972-11-29
Abstract: 1410628 Power conductor KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 29 Nov 1972 [30 Dec 1971] 55136/72 Heading H1A A medium or high tension power cable comprises one or more sector shaped phase conductors 10 or round conductors (Fig. 1, not shown) each conductor having a solid aluminium core 11 and a smooth covering of copper or copper alloy 10 to act as a smoothing layer; plastics insulation 13 (e.g. P.V.C. or polyethylene) and auxiliary layers such as screening layers, armouring (16) or radiation protection layers surround the smoothing layer(s). The conductors are made by forming a tube of thin copper strip about an aluminium core, welding the edges of strip together, drawing the tube down on to the core and then shaping the conductor. The core and covering are preferably metallurgically bonded together.
Patent GB-1196000-A (GB)
Title: Improvements in Rotary Internal Combustion Engines.
Inventor: GOUMENT VEAR OLIVER
IPC: F02B53/00
Filed: 1967-12-09
Abstract: 1,196,000. Rotary internal combustion engines. V.O. GOUMENT. Nov. 28, 1968 [Dec. 9, 1967], No.56117/67. Heading F1F. A rotary I. C, engine comprising a cylindrical casing 6, Fig. 3 (Provisional Specification) having a concentric driving shaft 1 on which is rotatably mounted concentric tubular shafts 2, 3 rigidly connected to rotors 11, 12, Fig. 15 having diametrically opposite arms, includes gear box 13 housing gearing so that the rotors both rotate in the same direction with the rotor 12 alternately approaching and receding from the rotor 11 to permit the four phases of induction, compression, expansion and exhaust to be sequentially carried out in each of the variable volume chambers between the rotor arms. The gearing comprises identical intermeshing sector-shaped gears 14, 15, Fig. 2 (Provisional Specification) having a one third sector whose radius is twice that of the remaining two thirds with the gear 14 rigidly connected to the tubular shaft 2 and the gear 15 freely mounted on a spindle 16 and formed with a gear 17 which meshes with a gear 18 rigidly secured to the tubular shaft 3. To ensure continuous running of the sector-shaped gears, spindles 19, 20, 21, 22 positioned within the gear box 13 freely mount identical stepped gears having small gears 23, 24, 25, 26 meshing with the larger diameter sectors and larger gears 27, 28, 29, 30 meshing with identical co-ordinating gears 31, 32 freely mounted on the shaft 1 and spindle 16 respectively. The gear 32 is formed rigid with a gear 33 which is in mesh with a gear 34 rigid with the drive-shaft 1 to drive the latter at half the speed of the rotors. An end plate 37 secured to the drive-shaft 1 is formed with an inlet port 39 and an exhaust part 38 which co-operate respectively with inlet and exhaust ports 45, 44 in an end port 40 of the casing via annular gaps 35, 36 respectively in a plate 9. To mitigate against shock loads when the rotors on the one pair of arms approach the rotors on the other pair of arms, the arms of the rotors 11 are formed with arcuate pistons 54, Fig. 16, which co-operate with arcuate cylinders 55 on the arms of the pistons 12 to form a gas cushion. The highly compressed gas in these cylinders can pass through small apertures 56 to initiate combustion. Alternatively spark-plugs may be used. Spring-loaded sealing strips on the end faces of the rotor arms sealingly engage the casing end plates and sealing shoes in grooves on the peripheries of the rotors are urged by centrifugal force into sealing engagement with the casing. Space displacing members 52 fitted to the rotors increase the compression ratio of the engine.
Patent GB-1482209-A (GB)
Title: Liquid containing vessels having agitators therein
IPC: B01F15/00
Filed: 1974-12-31
Abstract: 1482209 Mixing apparatus SYBRON CORP 31 Dec 1974 [22 April 1974] 56181/74 Heading B1C A vessel 1 has a coaxial rotatable stirrer 2, 5 and a cantilevered member 6 (e.g. a probe or sensor) having a free end projecting into liquid in the vessel and at least one plate 9 extending from the free end in a plane substantially parallel to the direction of circulation of the liquid, whereby vibration of the projecting member in the direction 8 is reduced. Preferably the height of each plate is 2.5 times, and the width 1.0-1.5 times, the diameter of the cantilevered member.
Patent GB-1347360-A (GB)
Title: Synchronising devices in motor vehicle cha'ge-speed gearing
IPC: F16D23/02
Filed: 1971-12-08
Abstract: 1347360 Positive clutches DAIMLERBENZ AG 8 Dec 1971 [15 Dec 1970] 57061/71 Heading F2C In a synchronizer the axial limit of movement of the teeth of the sleeve 10 which mesh with teeth 14 of a toothed ring 13 of the gearwheel is determined by a stop 19 formed on the gearwheel. As shown the synchronizer rings 11 have inward projections 12 which co-operate with faces (not shown) in recesses of the ring 13 to prevent engagement until synchronization is complete, and also support springs 15 (one per ring 11) which co-operate with an inner face of the toothed ring 13. The invention ensures that sleeve movement does not vary with wear.
Patent GB-574396-A (GB)
Abstract: 574,396. Boilers for kitchen ranges. SHARPLES, J. July 23, 1943, No. 12009. [Class 64 (i)] [Also in Groups XI and XXX] In a kitchen range having a boiler E for supplying hot water for domestic purposes and a central-heating boiler H, the latter is formed with four interconnected internal vertical flues H<2>, HI, H<5>, H<6> transversed in succession by gases from the firebox A<2> which enter at H<1> and escape to the flue F at H'. The flow and return pipes for the boiler are shown at h, h<1>, the circulation being assisted by a booster h<2> driven by an electric motor b.