baber/WOPTO huggingface dataset:
Patent GB-1205132-A (GB)
Title: Vulcanisable products and processes for their preparation and vulcanisation
IPC: C08L23/16
Filed: 1968-02-16
Abstract: 1,205,132. Block polymers. CHEMISCHE WERKE HULS A.G. 16 Feb., 1968 [17 Feb., 1967], No. 7665/68. Heading C3P. A block polymer is made by reacting a linear polyisoprene with a copolymer of at least two alphaolefines and a polyene in the presence of a catalyst comprising an organoaluminium halide containing at least one halogen atom and water or an organic or inorganic acid halide. The polymer is then vulcanized in conventional manner. Suitable catalyst combinations are ethyl aluminium sesquichloride with water and with thionyl chloride. The preferred copolymer is a terpolymer of ethylene, propylene, and dicyclopentadiene.
Patent GB-1170401-A (GB)
Title: New Water-Insoluble Anthraquinone Derivatives and Process for their Manufacture
IPC: C09B1/515
Filed: 1968-02-16
Abstract: 1,170,401. Anthraquinone dyes. CIBA Ltd. 16 Feb., 1968 [17 Feb., 1967], No. 7709/68. Heading C4P. Compounds of the formula or mixtures thereof, where n is 1 or 2, X 1  is OH or NHR 2 , X 2  is NHR 3  or OH, R 1 , R 2  and R 3  are H or alkyl, B 1  and B 2  are H, halogen or alkyl, R is an aryl residue or a fused heterocyclic 5- or 6-membered ring that is bound at paraposition to a heterocyclic O or S atom and Ac is an acyl residue are prepared by acylating compounds of the formula with an organic acid or an acylating derivative thereof in the presence of a Friedel-Crafts catalyst, and if the acyl groups attach to an α-position they are split off again by alkaline hydrolysis during the reaction. Compounds in which Ac is an acyl residue of a heterocyclic, araliphatic or aliphatic carboxylic acid are claimed per se.
Patent GB-370607-A (GB)
Title: Hospital bed
IPC: A61G7/10
Filed: 1931-03-13
Abstract: 370,607. Bedsteads. HANNAM, W. H., 15, Thompson Street, Mosman, New South Wales, Australia. March 13, 1931, No. 7770. Convention date, March 13, 1930. [Class 52 (ii).] A hospital bed comprises a main frame 1 .. 4, and a separable mattress frame 7 adapted to pass sideways into or from a position beneath a patient supported by straps 16. In use, the mattress frame is supported by short hangers 13 ; if only those at the head are used, the mattress is supported in an inclined position on its fore feet 10. To facilitate passing the straps 16 under the patient's body, there is provided a wire drag with, at each end, a hook adapted to engage in apertures in the end of the straps 16.
Patent GB-160176-A (GB)
Title: Method of grinding tooth profiles
IPC: B23F1/02
Filed: 1921-03-11
Abstract: 160,176. Wingquist, S. G. March 18, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Gear-wheels, grinding and trueing teeth of.- In order that the operative surface A of the grinding-disc S may wear uniformly and thereby automatically retain its shape, this surface, which is narrower than the operative part of the tooth profile E, has, in addition to the movement in known manner along the line of contact of the tooth, a movement at right-angles to that line; the relative motion between the disc and the gear-wheel is thus parallel to a line L, making an angle with the line L. Two or more grinding-discs may be employed, moving as described and operating simultaneously on opposite sides of the same tooth, or on opposite or corresponding sides of different teeth. The grinding-surface of the disc may be plane or cylindrical, and the movement at right-angles to the line of contact may comprise a series of rapid reciprocations.
Patent GB-492286-A (GB)
Title: Improvements in electric incandescent bodies for producing polarized light
IPC: H01K1/14
Filed: 1937-03-17
Abstract: 492,286. Electric incandescent lamp filaments. BOSCH AKT.-GES., R. March 17, 1937, No. 7792. Convention date, March 19, 1936. [Class 39 (ii)] An electric incandescent body for producing polarized light comprises a series of smooth polished metal strips arranged in parallel or substantially parallel planes, the axis of symmetry of the emitted polarized pencil of rays being parallel or substantially parallel to the planes of the strips so that the rays make small angles of 0-30‹ with the emitting surfaces. In one form the body comprises a strip of tungsten bent into a zigzag form, as shown in Fig. 1, comprising a series of substantially parallel strips, the spacing between such strips being less than the width of a strip, preferably less than one-half of the width. The thickness of the strip is also substantially less than its width, preferably less than one-fifth. In order to reduce the amount of light emitted directly by the edges of the strip the edges are preferably tapered, or the strip is of rhombic cross-section. The band may also be coiled into a helix of close pitch, so that the illuminating faces are approximately parallel and, as shown in Fig. 8, reflectors R disposed transversely to the axis of the helix may be mounted adjacent the opposite ends thereof, the centres of curvature of the reflectors being situated approximately at the centre of the illuminating body. The lamp may be used in conjunction with known polarizing apparatus, such as polarizing prisms, tourmaline plates, &c., to increase the yield of polarized light. The Specification as open to inspection under Sect. 91 describes a modification wherein a zigzag band or strip is bent around into a circle, with the faces of the strips disposed vertically and radially. Further modifications comprise flat or cylindrical rods around which sharp-edged grooves are cut, or metal discs with sharp outer edges and a central aperture are pressed together upon a tubular rod. This subject-matter does not appear in the Specification as accepted.
Patent GB-1401123-A (GB)
Title: Writing instrument
IPC: B43K8/02
Filed: 1973-02-16
Abstract: 1401123 Fibre-tipped pens E KREUZER 16 Feb 1973 [21 Feb 1972] 7804/73 Heading A4K [Also in Division B6]  A fibre-tipped pen comprises a first ink reservoir 3 communicating with the tip 2, and a reserve ink reservoir 5 the contents of which can be discharged into the first reservoir by an actuating element which by its displacement indicates that the reservoir is in use. The slidable element may comprise a push pin 7 or an element advanced by a rotary action. The first reservoir 3 comprises a wick. The reserve reservoir may also comprise a wick as shown, the push pin 7 urging the reserve wick 5 into contact with the first wick 3 to permit capillary transfer of the ink. In an alternative embodiment a reserve wick (5), Fig.2 (not shown), is compressed by the push pin (7) to release the ink therein. In a second alternative embodiment, the reserve reservoir comprises a pressurized pad (10), Fig.3 (not shown), which is punctured by depression of the push pin (7) to release the ink therein. The push pin is held against inadvertent depression either by a forcibly deformable collar 8 or by cementing the push pin 7 to the element 6 in which it is mounted.
Patent GB-1024866-A (GB)
Title: Improvements relating to freeze drying
IPC: F26B5/06
Filed: 1963-02-27
Abstract: 1,024,866. Freeze-drying. LEYBOLDHOCHVAKUUM-ANLAGEN G.m.b.H. Feb. 27, 1963 [Feb. 27, 1962], No. 7835/63. Heading F4G. [Also in Division A2] A freeze drying process comprises controlling the drying temperature by reference to the partial pressure of aroma-imparting substances or other volatile constituents originating in the drying material or of their vaporous or gaseous decomposition products. Material 5 to be dried is maintained in a chamber 1 evacuated by a pump 2 and the water vapour sublimed by heat from a device 3 is condensed in a condenser 6 connected to a refrigerating machine 7. A portion of the atmosphere in the chamber is extracted into a cracking chamber 11 and the gas resulting from the cracking process is sent through a cold trap 12 into a partial pressure indicator unit 13 which controls the heating device 3 through a relay 8 and a measuring and controlling unit 9. The pressure required in the indicator unit 13 is maintained by a diffusion pump 14.
Patent GB-572978-A (GB)
Title: Improvements in and relating to copper base alloys
IPC: C22C9/00
Filed: 1944-04-26
Abstract: 572,978. Alloys. ENFIELD ROLLING MILLS, Ltd., and SYKES, J. April 26, 1944, No. 7836. [Class 82 (i)] Copper base alloys, which, have high strength and electrical conductivity and are suitable for use in, the manufacture of contact welding electrodes for welding aluminium and aluminium alloys, consist of tellurium 0.05-1.0 per cent, nickel 0.01-0.1 per cent, oxygen up to 0.1 per cent, the balance being copper. The copper may be partly replaced by up to 0.05 per cent of silver.
Patent GB-589722-A (GB)
Title: Improvements relating to hydraulic governors
IPC: G05D13/00
Filed: 1945-03-28
Abstract: 589,722. Fluid-pressure servomotorcontrol systems. C.A.V., Ltd., and NICOLLS. W. E. W. March 28, 1945, No. 7852. [Class 135] A hydraulic governor for controlling an internal-combustion engine fuel injection pump has an engine-driven hydraulic pump f, Fig. 1, which supplies pressure liquid through a passage a, orifices p in a piston o and a passage b to the lower side of a regulating piston h connected by a rod k and lever m to the fuel pump regulating means. A valve r controls communication between the passages band c, the passage c connecting with the upper side of the piston h and also, through a variable choke comprising a piston 3 and a sleeve 4 with the inlet to the pump f. A byepass valve u, when depressed by a manually-operated lever 2, permits liquid to flow from the passage c to a chamber x and thence to the pump inlet, thus byepassing the choke. In operation, for starting, the valve u is closed and the engine rotated, pressure being built up in the passage b to move the regulating piston against its spring to adjust the fuel pump to give maximum discharge. When the engine fires, the pressure drop across the orifices p increases and causes the piston o to open the valve r thereby admitting pressure liquid to the upper side of the regulating piston to adjust the fuel pump to the idling requirements of the engine, the pressure above the piston being controlled by the choke 3, 4. To increase the speed, the valve u is depressed, thus reducing the pressure above the regulating piston, and at the same time increasing the spring loading on the valve r to increase the pressure below the regulating piston. In a modification, Fig. 2, the byepass valve comprises a spring-loaded lift-valve 8, speed adjustment being effected solely by varying the spring loading on the valve r.
Patent GB-1530226-A (GB)
Title: Aliphatic tertiary polyamines
IPC: C08G18/18
Filed: 1977-05-30
Abstract: 1530226 Tertiary aliphatic polyamines BAYER AG 30 May 1977 [1 June 1976] 07857/78 Divided out of 1530225 Heading C2C Novel catalysts for use in the manufacture of polyurethane foams have the formula The first compound may be made by reacting 1 mole of tris-(2-methylaminoethyl)-amine with 3 moles of dimethyl-(2-chloroethyl)-amine hydrochloride in the presence of NaOH. The second compound may be made by reacting tris-(3,7- diaza-3-methyl-heptyl)-amine, formalin and formic acid in aqueous media.
Patent GB-1367551-A (GB)
Title: Manufacture of electrode materials
IPC: H01M4/88
Filed: 1972-02-21
Abstract: 1367551 Compositions containing tungsten carbide or tungsten disulphide SIEMENS AG 21 Feb 1972 [22 Feb 1971] 7951/72 Heading C1A [Also in Division H1] An electrode material containing tungsten carbide or disulphide and free carbon is made by mixing together tungsten carbide or tungsten disulphide and an organic substance degradable to carbon on heating in two carbonizing steps, the second of which is effected in an oxygen-free atmosphere and heating the mixture to cause the organic substance to degrade to carbon. Specified organic substances are carbohydrates, particularly sugar or starch, polyvinyl alcohol, polyacrylic acid, polyclycol, polyacrylonitrile, polyethylene and polyvinylchloride. The first carbonizing step may be carried out in air, vacuum or in an inert gas at approximately 300-400‹ C., the second stage being effected with exclusion of oxygen at 800-1000‹ C. The quantity of carbon in the product may vary from 30% by weight of the organic substance in the case of sugar, 10% in the case of starch and 15% in the case of polyvinylaclohol and polyaorylic acid. The porosity of the product can be increased by addition of activators such as magnesium chloride, zinc chloride, calcium chloride, potassium thiocyanate, potassium sulphide, sulphuric acid, phosphoric acid, and alkali metal hydroxides. The activator may be dissolved out of the product or volatilized at the high temperature employed in the second carbonizing step. The amount of free carbon in the final product may be equal or up to 100 times that of tungsten carbide or disulphide. The product may be used in the construction of an electrode for an electrochemical cell.
Patent GB-734186-A (GB)
Title: Improved process and apparatus for the production of yarn, filaments, films and the like
Inventor: WENDON ULRICH LUKE
IPC: B29C48/38
Filed: 1951-04-06
Abstract: <PICT:0734186/IV (a)/1> In melt-spinning synthetic organic material, chips or particles of the material are fed to a screw-type extruder comprising a horizontal screw rotating in and closely fitting a barrel, which is heated so that the material is melted during its passage along the screw, and the molten material is supplied by the screw to a positive displacement pump whereby it is pumped through a spinneret or extrusion orifice, the rate of pumping the material by the pump being not greater than the discharge rate of the molten material by the screw, and not so much less than the discharge rate of the screw that any significant decomposition of the molten material in the barrel results.  The material may be a polyamide, e.g. a hexamethylene adipamide or sebacamide or caprolactam polymer, a linear aromatic polyester, e.g. a polymeric polymethylene terephthalate in which the polymethylene group contains 2 to 10 carbon atoms, or a polymeric polymethylene diphenoxyethane - 4 : 41 - dicarboxylate.  As shown, chips of the material are supplied from the hopper 4 to a constant-depth decreasing-pitch screw 1 rotated in a barrel 2 by a variable-speed electric motor 5.  The barrel is provided with electrical resistance heating elements 3, and the material in the hopper is blanketed with an inert gas.  Molten material is fed through a wire gauze filter 8 by the screw 1 to the gear pump 6 driven by an electric motor 7.  The gear pump forces the molten material at a steady rate through the duct 9, a sand pack 10 and the spinneret 11.  The block 12 connecting the discharge end of the screw, the gear pump and the spinneret assembly is provided with heaters 13. The temperatures of various parts of the apparatus are indicated by thermocouples 14-17.  The screw may alternatively have a decreasing depth-constant-pitch thread or may be of constant capacity throughout its length, but the ratio of the capacity of one turn of the screw at the feed end to that of one turn at the discharge end is preferably substantially equal to the ratio of the density of the molten material to the bulk density of the solid material as fed to the screw.  The apparatus may alternatively be heated by means of a heated fluid circulated through jackets surrounding the parts to be heated or through ducts in the walls of these parts.  The screw may be heated by means of a heated fluid circulated through ducts in the screw. The hopper may be thermally insulated from the screw.  In an example a monofil of highly polymerized polyethylene terephthalate melting at 265 DEG  C. is melt-spun by means of an apparatus of the type shown, the temperatures of the barrel, the discharge end of the screw, the pump and the spinneret respectively being 259 DEG , 281 DEG , 275 DEG  and 277 DEG  C.  Specification 675,621 is referred to.
Patent GB-109032-A (GB)
Title: Improvements in and relating to Fountain Pens.
Inventor: SOWERBY ARTHUR LICHFIELD
IPC: B43K5/04
Filed: 1917-06-08
Abstract: 109,032. Sowerby, A. L. June 8, 1917. Reservoir pens.-In selffilling fountain pens of the type comprising a collapsible reservoir and a presser-plate, the presser-plate c is operated to compress the reservoir by means of a leaf spring j, one end of which is attached to a ring k fitted in an annular groove near the nib-section, whilst the other or free end is adapted to be moved lengthways of the barrel a by means of a nut f working on a screw e secured to a rotatable knob h. The screw e works in a plug d secured in the end of the barrel a. To prevent it from rotating, the nut f is provided with lateral extensions engaging slots a<1> in the barrel. The spring i is secured to the presser-plate by passing a lug c' stamped up from the plate through holes in the spring.
Patent GB-809447-A (GB)
Title: Improved means for stowing the operating cord or like line of an inflatable life raft in a container for the life raft
IPC: B63C9/23
Filed: 1955-10-14
Abstract: 809,447. Life saving appliance. R.F.D. CO. Ltd., MITCHELL, S., and EDWARDS, D. V Oct 9, 1956 [Oct. 14, 1955], No. 8270/58. Divided out of 809,446. Class 77 Means for stowing the operating cord 19 of an inflatable life raft in a container comprises a board 25 above which the raft (not shown) is stowed, while the flaked cord 19 is detachably held by rubber loops 26 upon the underside so that the line can be drawn off taut without entanglement.
Patent GB-1240936-A (GB)
Title: A pipe joint and method of forming such a joint
IPC: F16L13/10
Filed: 1969-02-14
Abstract: 1,240,936. Soldering. CONNECTICUT RESEARCH & MFG. CORP. 14 Feb., 1969 [11 Oct., 1968], No. 8296/69. Heading B3R. [Also in Division F2] In a tapered spigot and socket pipe joint the taper of the spigot is less than the taper of the socket, the opposed tapered surfaces being bonded together by a tapered tubular insert 5 of bonding material disposed between and extending the length of said surfaces. When the joint is to be effected between metal pipes 1, 3 e.g. of stainless steel, the insert 5 is of solder or brazing material, the insert being slightly longer than the tapered surfaces (Fig. 2, not shown). The width of the bonding material in the insert varies from 0À005 inch at its outer end to 0À00 inch at its inner end. The tapers may be from 4 to 20 degrees. In the case of plastics pipes an epoxy resin may be used as a bonding agent.
Patent GB-1094291-A (GB)
Title: Improvements in alternating current fed variable speed electric motors
Inventor: LAMB CEDRIC ST JOHN
IPC: H02K29/00
Filed: 1963-03-01
Abstract: 1,094,291. Electric motors; control of A.C. motors. ELECTRODYNAMIC CONSTRUCTION CO. Ltd., C. ST. JOHN LAMB and E. J. TIMBERLAKE. June 1, 1964 [March 1, 1963; Nov. 13, 1963], Nos. 8306/63 and 44827/63. Headings H2A and H2J. A commutatorless motor, supplied from an A.C. source, has thyristors (semi-conductor controlled rectifiers) connected in parallel with a diode in each " commutator " connection and controlled to continuously reverse the current through the stationary armature windings in phase with the A.C. supply to give a unidirectional torque on the rotor. The thyristors may be controlled either in accordance with rotor position from switching rings, Fig. 2 (not shown), or from an external switching unit such as that disclosed in Specification 1,094,292. As shown, 1, 1<SP>1</SP> and 7, 7<SP>1</SP> represent two of the coils from the 12 coil, 2-pole motor shown in full in Fig. 2, the two coils being 180 degrees apart. X and Y are the A.C. supply lines and the coils are connected to the supply through parallel connected thyristors and silicon diodes 1a, 1c; 7b, 7d; 7a, 7c; and 1b, 1d. For the magnetized rotor N, S to move to the left, the currents in the directions shown are obtained by making 7b conduct when X is positive or 1a when Y is positive effectively giving full wave rectification. When the rotor has turned through 180 degrees the currents in the coils must reverse to keep unidirectional torque, and 1b and 7a conduct for Y and X positive respectively. Since the thyristor only conducts when its gate electrode is excited and the polarity of the applied voltage is correct, the motor speed is independent of the supply frequency.
Patent GB-385800-A (GB)
Title: Improved grip for use in straining and jointing electrical conductors, wires and the like
IPC: H02G1/02
Filed: 1932-03-21
Abstract: 385,800. Wire and like strainers. McMAHON, B., 27, Avenell Road, Kooyong, Victoria, Australia. March 21, 1932, No. 8312. [Class 45.] In an apparatus for straining and jointing electric conductors, wires, &c. gripping means for the wire &c. are pivotally secured near one end of an offset arm 12 to the other end of which the tensioning means are secured, whereby a clear space is provided between the gripping and tensioning means wherein a jointing tool may be manipulated. The tensioning means comprise a strap 3 passing around a roller 4 and a pivoted locking dog 6 coacts with the strap. The gripping means comprise a lever 13 pivoted to the arm 12 and to upper and lower jaws 15, 14 which are interconnected by a link 16 for parallel movement. The lower jaw is provided with a downward extension 17 having a slotted lower end through which passes the curved free end of the arm 12. A spring 19 maintains the jaws normally closed.
Patent GB-689909-A (GB)
Title: Arrangement for the dustless emptying of waste material such as refuse out of a bin into a collecting container
IPC: B65F3/12
Filed: 1950-04-03
Abstract: 689,909. Emptying dustbins. FEIDERT, J. April 3, 1950 [April 5, 1949], No. 8350/50. Class 26 A garbage emptying device comprising a dustbin 1 with a hinged lid 4 which is coupled with a tipping frame 10, the filling opening of which has a controlled cover 13 for opening and closing the lid 4 by means of a projection 8 therein, is characterized in that the dustbin is provided with a flange 2, mounting hinge parts 3, 5 for the lid located in such a position as to pass through the opening of the hood 9, which co-operates with a continuous sealing ring 12 around the filling. opening, and in that the hood 9 is provided with coupling and locking elements 16, 17 for co-operation with the flange. In operation, the dustbin to be emptied is hung by a projection 7 on a hook 20 and tipped upwardly., The flange 2 passes the coupling catch 16, which is mounted on a spring-turned shaft 15 also carrying the locking catch 17, and contacting the sealing ring 12 moves the tipping frame 10. A rod 26, contacting the bottom of a slot 23 in a further rod 22, then opens the cover 13 and therefore the lid 4 and the bin empties. When the bin is moved in the other direction, the cover 13 and the lid 4 close, an abutment 18 raises the lever 17 and therefore the coupling 16 so that the empty bin may be withdrawn.
Patent GB-1454137-A (GB)
Title: Cooled exhaust valves for internal combustion engines
IPC: F16K1/32
Filed: 1974-02-25
Abstract: 1454137 Poppet valve SOC D'ETUDES DE MACHINES THERMIQUES 25 Feb 1974 [30 March 1973] 8352/74 Heading FIB [Also in Divisions C6-7 and F2]  An exhaust valve for an I.C. engine has a valve stem 1 which, on a cylindrical portion of its surface has a protective corrosion resistant metallic coating 9 arranged so that a smooth cylindrical surface is formed by the coating and the portion of the valve stem connecting it to the valve head 2. Cooling liquid is supplied to and discharged from a chamber 3 via channels 7 and 8 respectively. The portion of the stem coated is that which in use has substantially the temperature of the dew point of the gaseous medium surrounding the valve stem. The coating may consist of 62À42% nickel, 15% molybdenum, 12% chromium, 5% iron, 3% tungsten, 2À5% cobalt and 0À08% carbon or alternatively 87% tungsten carbide and 13% cobalt.