baber/WOPTO huggingface dataset:
Patent GB-1314799-A (GB)
Title: Process for obtaining or producing very pure tetrachlorobisphenol
IPC: C07C37/86
Filed: 1971-06-28
Abstract: 1314799 Purifying tetrachlorobisphenol A BAYER AG 28 June 1971 [29 June 1970] 30140/71 Heading C2C In a process for the production of a tetrachlorobisphenol A-acetic acid adduct such an adduct of molar ratio 1 : 2 is caused to crystallize out of a 40 to 10% strength solution of the tetra-chlorobisphenol A in acetic acid, the crystallization being effected at 55 to 15 C. Pure tetrachlorobisphenol A is obtained by splitting the adduct e.g. by heating optionally under reduced pressure on treating with water. Tetrachlorobisphenol A is prepared by chlorinating bisphenol A in acetic acid solution containing a little water.
Patent GB-818987-A (GB)
Title: Improvements in or relating to chemically resistant pressure-sensitive adhesive tapeand method of making the same
IPC: C09J7/50
Filed: 1955-10-21
Abstract: 818,987. Pressure sensitive adhesive film. CONNECTICUT HARD RUBBER CO. Oct. 21, 1955 [Nov. 22, 1954], No. 30219/55. Class 140. A pressure-sensitive adhesive film comprises a halogenated polyethylene backing with an adhesive receptive synthetic or natural polymeric or resinous material fused into a surface thereof and a tacky pressure-sensitive adhesive composition firmly adherent to the modified surface and relatively non-adherent to the untreated surface of the backing. The halogenated polyethylenes are solid polymerization products of ethylene with halogens, i.e. fluorine, bromine, chlorine and iodine, such as polytrifluorochloroethylene and polytetrafluoroethylene. The adhesive receptive material may be natural rubber or an elastomeric substance which may be a silicone rubber, e.g. dimethyl silicone rubber, or a silicone rubber-containing composition such as mixtures of silicone rubber and a halogenated polyethylene, silicone resin, or oxidized silicone oil. The pressure-sensitive adhesive may contain natural and butyl rubber, polyisobutylene, coumarone - indene resin, hydrogenated resin, silicone rubber, gum or resin, terpene resin, zinc resinate, fillers, e.g. ferric chloride, titanium dioxide, zinc oxide, and stearic acid, and curing agents, e.g. benzoyl peroxide. Specification 737,286 is referred to. Reference has been directed by the Comptroller to Specification 790,018.
Patent GB-716440-A (GB)
Title: Improvements in and relating to rotary regenerative heat exchangers
Inventor: BENTELE MAX
IPC: F28D19/04
Filed: 1951-12-27
Abstract: 716,440. Regenerative heat-exchangers. PARSONS & CO., Ltd., C. A. Dec. 27, 1951, No. 30220/51. Class 64(1) A rotary matrix in a regenerator for exchanging heat between gases of differing pressures, is continuously cleaned of dust or like particles from the gases suspended in the gas passages of the matrix or adhering to the surfaces thereof, by providing a sudden pressure drop across those passages of the matrix which are passing through a seal separating the high and low pressure sides of the apparatus from one another, thus causing a sudden blast of gas to flow through said passages to sweep away the dust or like particles. The required pressure drop is obtained by suddenly connecting the passages passing through the seal to a region of low pressure and if necessary. supplementing the resultant blast of gas through the passages with gas from an external source such as compressed air. In Figs. 2a and 2b cells defined by ribs 6a and each containing heat transfer material 6 of a drum type rotor are shown passing between sealing shoes 10, 11 from the low pressure side (III, IV) of the apparatus to the high pressure side (I, II). Dust particles &c. in the matrix in this case derive from the low pressure gas. Sealing shoe 11 overlaps its opposing shoe 10 and is provided in the overlapping portion with a duct 16 so that as each cell having left the low pressure zone III, IV approaches the high pressure zone I, II it is first suddenly connected with that zone as seen by Fig. 2a thus causing a sudden increase in pressure in the cell thereby blowing out of the matrix all the dust and like particles to the space 20. Thereafter as seen by Fig. 2b the cell is put into communication with the duct 16 which carries away the particles to a cleaning apparatus such as a precipitator. Fig. 3b shows an arrangement in which cells of a disc type rotor are passing between sealing shoes 12, 13 from the high pressure zone (I, II) to the low pressure zone (III, IV) and in which the dust &c. particles in the matrix are derived from the high pressure gas. As shown, the shoe 13 overlaps the shoe 12. As the individual cells leave the seal a blast of high pressure gas is caused to flow through them by the sudden connection of each cell by way of groove 22 and passage 23 provided in the shoe 13 to the high pressure zone II. Wire cloth may cover one or both sides of the matrix to increase the percentage of particles trapped near the matrix surface. In a power plant described, heat is exchanged in a rotary drum type regenerator between ambient air from a compressor and hot combustion gases driving a turbine coupled to the compressor Fig. 1 (not shown), the regenerator incorporating seals as described above to remove entrained dust &c. particles from the matrix.
Patent GB-937328-A (GB)
Title: Process for the production of solid aluminium sulphate from molten aluminium sulphate
IPC: C01F7/746
Filed: 1961-06-05
Abstract: Solid aluminium sulphate is produced from an aluminium sulphate melt containing up to 19% by weight of aluminium oxide by coding the Al2(SO4)3 melt to 80 to 95 DEG C., mixing with the cooled melt 0,5 to 5% of particulate Al2(SO4)3, and allowing the mixture to solidify on a moving belt.  The melt is preferably solidified by forming a layer 80 to 150 mm. thick on a smooth-surfaced, trough-shaped, rubber belt. At the end of the solidification, which takes 25 to 40 minutes, the Al2(SO4)3 cake formed on the belt may be broken up and the broken pieces passed in a thin layer over a conveyer belt which is cooled by blowing cool air from above.  The material can then be ground in conventional mills used for grinding sulphate.  The preliminary cooling of the melt to 80 to 95 DEG C. may be achieved by passing the melt through a vessel in which the vapour pressure has been reduced to correspond to the vapour pressure of water in the Al2(SO4)3 melt at the desired temperature.
Patent GB-1503720-A (GB)
Title: Apparatus and method of positioning sliders
IPC: A44B19/64
Filed: 1975-06-30
Abstract: 1503720 Sliding clasp fasteners TEXTRON INC 30 June 1975 [1 July 1974] 30244/77 Divided out of 1503719 Heading E2S The description and drawings are as in the Parent Specification the claims being directed to apparatus for positioning a slider for its engagement with the fastener stringers, wherein sliders are fed in single file on a conveyor track towards a lowered raising means which then lifts the slider to a position accessible for the threading operation, there being friction driven means for moving the sliders in spaced relation along the track, means for transferring the sliders from the track to the raising means of a retractable projection extending in the path of the sliders on the track to retain the sliders until retracted to admit one slider in response to the operation of the transfer means.
Patent GB-1186925-A (GB)
Title: Conditioning of Surfaces Formed Of Acrylonitrile-Butadiene-Styrene Terpolymer
IPC: C08J7/12
Filed: 1967-06-30
Abstract: 1,186,925. Treating copolymers. PERNIX ENTHONE. 30 June, 1967 [1 July, 1966], No. 30247/67. Heading C3P. [Also in Division C7] The surfaces of articles formed from acrylonitrile / butadiene / styrene terpolymers are treated with nitric acid. The treatment is said to release strains and render the surfaces suitable for metal plating. Treatment may be effected with aqueous nitric acid or nitric acid vapour, before or after treatment to promote metal adhesion, e.g. treatment with chromic acid solution or abrasive blasting with sand or alumina. The surfaces may be cleaned with an aqueous solution of borax and sodium pyrophosphate before treatment. A suitable chromic acid solution comprises sulphuric acid, phosphoric acid and chromium trioxide. The surfaces may be subsequently sensitized with a solution of stannous chloride and hydrochloric acid, activated with a solution of palladium chloride and hydrochloric acid, electroless plated with copper or nickel, and subsequently electroplated.
Patent GB-262152-A (GB)
Title: Improvements in radio signalling systems
IPC: H04B7/02
Filed: 1926-11-30
Abstract: 262,152. British Thomson - Houston Co., Ltd., (Assignees of Alexanderson, E. F. W.). Nov. 30, 1925, [Convention date]. Calling systems; fading, preventing; modulating systems. - In a transmitter the plane of polarization of the waves is varied at a predetermined frequency to avoid fading effects. The Figure shows a system in which the polarization of the waves alternates periodically between the horizontal and vertical planes, magnetic modulators 23, 24 excited from an alternating current source 28 being arranged to transmit alternately the output of the generator 19 to vertical antenna 20 and a horizontal loop antenna 21 provided with series condensers 22 to neutralize the series inductance. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the variation of other characteristics of the transmitted waves e.g. wavelength to avoid non-reception due to inaccurate tuning of the receiver and fading effects. Fig. 1 (Cancelled) shows one method of varying the wavelength of an antenna. Alternatively a magnetic modulator excited by an oscillating valve may be employed to vary the wavelength. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 260,259.
Patent GB-676349-A (GB)
Title: Improvements in or relating to rotary pumps of the resilient tube type
IPC: F04B43/12
Filed: 1950-12-12
Abstract: 676,349. Flexible-tube pumps. SEYLER, L. A. Dec. 12, 1950 [Dec. 13, 1949; Dec. 7, 1950], No. 30352/50. Class 110(ii) The tube 1 is moulded to its final shape so that when pressed by a roller 3 or the like the interior of the tube is entirely closed, the ends of a closed cross-section being smooth half-circles or formed as bulges, Fig. 11 (not shown). The tube may be circular in cross-section with grooves 17, Fig. 6 (not shown), diametrically placed laterally, or shaped as in Fig. 10. A continuous, or intermittent, peripheral strip 20, is secured by casing parts to prevent the tube from creeping during pumping. The presser rollers 3 may yield radially against spring pressure, Fig. 13 (not shown), if any solid matter tends to block the tube. The rollers may be withdrawn from contact with the tube by rotation of an eccentric 7, preferably of bronze, a key 9 first being removed and then re-inserted at a position diametrically opposite to the former. An outer ring 8 is preferably of steel. A metal ring may be incorporated in the tube to prevent its collapse under suction. Fig. 15 shows means to shield a bearing 32 against ingress of corrosive vapours and the like, on a pin 5, a disc 33 being secured tightly against the inner face 31 of the bearing and overlapping the outer race 34. To provide continuous or intermittent contact for the roller 3, a flexible path may be provided around the space not occupied by the tube, Fig. 16 (not shown).
Patent GB-174705-A (GB)
Title: Improvements in or relating to electrical signalling apparatus
IPC: G08B9/00
Filed: 1920-10-27
Abstract: 174,705. Sokal, S., (Luftfahrzeugbau Sch³tte Lanz). Oct. 27, 1920. Order apparatus of the ship's order-telegraph type is characterized by the fact that normally, i.e. when the command indicator 1 and the receiver indicator 2 are in coincident positions, Figs. 1 and 5, none of the signal lamps, such as 3, 4, 5, 20 are lit; whereas when the indicator 1 is moved to another position, Fig. 3, so as to close a contact 19, a lamp 20 is lit at the receiving end to indicate the new command and is only extinguished when the receiver has been moved to a corresponding position, Fig. 5, thereby breaking a contact 22. The initial movement of the indicator 1 simultaneously closes a contact 12 and lights a lamp 3 at the command end which indicates the old position of the receiver 2; this lamp is not extinguished until the receiver has been lifted to break a contact 18 in the act of moving over to the new position indicated by the lamp 20. Each movement of the indicators 1 or 2 is signalled, through contacts 13 and 8, by the ringing of a bell 9 or 7 at the opposite end of the system.
Patent GB-211103-A (GB)
Title: Improvements in or relating to throttle control mechanism for automobiles
IPC: G05G1/60
Filed: 1923-12-04
Abstract: 211,103. Means, P. A. Feb. 8, 1923, [Convention date]. Treadle mechanism.-A foot-positioning device for use in conjunction with a pedal on a motor vehicle 11 comprises a block 12 having a spring- controlled slide 16 which tends to force the driver's foot on to the inclined pedal-plate 11 thus depressing the pedal and opening the throttle. The foot is held in any position by pressure on the top of the block 12. The slide 16 moves in a groove in the block, its movement being limited by stops 21, 22.
Patent GB-356530-A (GB)
Title: Improvements in or relating to bottle cleaning machines
IPC: B08B9/42
Filed: 1930-10-13
Abstract: 356,530. Bottle - washing machines. RUPRICH, W., 3, Boelckestrasse, Halle-on. Saale, Germany. Oct. 13, 1930, No. 30632. [Class 138 (i).] In bottle-washing machines wherein the bottles are conveyed in a closed path intermittently to a series of jetting stations, the bottle carriers are in contact and push one another forwards. The carriers are mounted on wheeled carriages running on guide rails 20, 20<1>, 50, 50<1> the bottle carriers being attached to transverse bars 11 attached in turn to bars 12 on which the wheels 14 are mounted, the wheels having additional guide rollers 13 for engaging the rails 50, 50<1>. The ends 12b of the bars are rounded off, as shown, and are casehardened. A sprocket 30 engages the rollers for propelling the carriages. In a modification, the carriages may be loosely connected by pin and slot connection to an endless chain, the carriages pushing against one another as mentioned above, but the slotted connection maintaining them in position as they pass around the sprocket wheel. In modifications, gaps may be left in the train of carriers.
Patent GB-1030035-A (GB)
Title: Apparatus and process for extruding polytetrafluoroethylene tubing and tubular coatings
IPC: B29C48/09
Filed: 1964-08-04
Abstract: 1,030,035. Extrusion dies; tubular film extrusion nozzles. E. I. DU PONT DE NEMOURS & CO. Aug. 4, 1964 [July 24, 1963], No. 30896/64. Headings B5A and B5B. A die for the extrusion of a tubular film of polytetrafluoroethylene comprises a mandrel having a divergent surface 12 remote from an a convergent surface 15 near the extrusion orifice 16, and a smoothly contoured intermediate area 14, and the die body 10 has an inner wall surface 13 having a convergence substantially the same as that of the surface 15 and being spaced therefrom a distance of 5 to 15 times the thickness of the extruded film. Polytetrafluoroethylene powder mixed with lubricant is forced through the die by a piston (not shown). An alternative apparatus is described for coating a wire by extrusion.
Patent GB-882058-A (GB)
Title: Process for producing composite articles and organosilicon materials used in the production thereof
Inventor: JEX VICTOR BIRD
IPC: C07F7/18
Filed: 1957-10-03
Abstract: Inorganic oxygen-containing filler materials for use as reinforcing agents in thermosetting resins are treated with an aminoalkyl silicon compound containing the grouping =N(CH2)aSi­ where a is at least 3. This compound may be a silane or polysiloxane as described in Specifications 795,894. 882,062, 882,069 and 882,096, The fillers include silica, mica, quartz, calcium carbonate, iron oxide, kieselguhr and other diatomaceous earths, fibrous glass and asbestos. In Example 13, calcined clay of average particle size of 0,29 microns, and powdered mica (160-200 mesh) are treated with solutions of triethoxysilylpropylamine in benzene, washed with petroleum ether and dried.  In Example 14, finely divided silica is treated with aqueous ethanol solution of triethoxysilylpropylamine and dried. Reference has been directed by the Comptroller to Specifications 684,296, 769,498, 788,074, 788,806, 816,056 and 817,463.ALSO:The invention comprises the use of aminoalkyl silicon compounds containing the grouping -N(CH2)aSi­ where a is at least 3, as modifiers for thermosetting resins and/or inorganic oxygen-containing fillers in the preparation of composite articles therefrom.  The silicon compounds may be silanes or polysiloxanes and are described in Specifications 795,894, 882,062, 882,069 and 882,096.  Specified fillers are fibrous glass, asbestos, silica, mica, quartz, calcium carbonate, iron oxide, kieselguhr and other diatomaceous earths.  The invention is particularly concerned with the lamination of glass cloth.  Suitable thermosetting bonding resins are phenol-, melamine- and urea-aldehyde resins; glycerol-phthalate, terephthalate and maleate resins and their alcohol-, acid- and oil-modified products; epoxy resins; and polyurethanes.  The silicon compound may be added to the filler or to the resin prior to making the composite article, and is generally added in the form of a solution in, for example, an alcohol, ether alcohol or aromatic hydrocarbon which may be aqueous. Examples 1 to 12 relate to the lamination of glass cloth, the resins including hexamethylene tetramine-modified phenol-formaldehyde polymers; an epoxy resin (Example 7) which is a blend of the diglycidyl ethers of 2,2-, 2,4- and 4,4-dihydroxydiphenylmethanes and 2,2-, 2,4-and 4,4-dihydroxydiphenylmethanes; and the same resin plus bis(aminophenylmethane) hardener (Example 8).  In Example 13, calcined clay (0,29 micron) and powdered mica are treated with triethoxysilylpropylamine and used to reinforce phenolic resins. In Example 14, the filler is silica.  In Example 17, asbestos paper treated with triethoxysilylpropylamine is laminated with a mixture of a low molecular weight phenol-formaldehyde resin, a phenolic resin rich in methylol groups and hexamethylene tetramine.  Reference has been directed by the Comptroller to Specifications 684,296, 769,498, 788,074, 788,806, 816,056 and 817,463.
Patent GB-153793-A (GB)
Title: Improvements in and relating to "bumpers" or "obstacle removers" for motor road vehicles
IPC: B60R19/26
Filed: 1919-12-10
Abstract: 153,793. Limoges, J. D. W. Dec. 10, 1919. Wheel guards and obstruction-removers. - Across the front of a vehicle is arranged a resilient metal fender bent into the shape shown, with a central member 9 secured to the converging portions 5 and carrying a casing 13 in which are disposed projecting roller or ball members 14. A head lamp 16 is mounted on a collar 7, and carried at the outer ends of the fender are side lamps 17 preferably formed with coloured openings 18 at the front to indicate at night the side limits of the car. A mirror 20 may also be mounted on the fender. A resilient fender with projecting ball or roller members is fitted to the rear end of the car.
Patent GB-1110527-A (GB)
Title: Copolyacetals and process for their manufacture
IPC: C08G2/18
Filed: 1966-07-11
Abstract: Novel copolymers comprising 80 to 98% by weight of trioxan, 0 to 10% by weight of a cyclic ether or cyclic formal, and 0.1 to 10% by weight of a bisalkane triol-triformal of the formula <FORM:1110527/C3/1> in which n and m are integers of 3 to 9, are prepared by copolymerizing the monomers in the presence of a cationic catalyst, and at -50 DEG  to + 100 DEG  C.  Specified triformals are bis-1,2,5-pentane triol triformal and bis-1,2,6-hexane-triol triformal.  Specified cyclic ethers and formals are ethylene and propylene oxide, epichlorohydrin, 4-chloromethyldioxolan, glycol formal, and diglycol formal.  Specified catalysts are organic and inorganic acids and acid halides, and Lewis acids, e.g. BF3, BF3-etherate, and diazonium fluoroborates.  Heat, light and oxidation stabilizers may be incorporated into the copolymers.
Patent GB-363040-A (GB)
Title: Improved process for the destructive hydrogenation of coal
IPC: C10G1/00
Filed: 1930-10-16
Abstract: Caking coals, or non-caking coals, mixed with caking carbonaceous materials such as bitumen, asphalt, or pitch are heated rapidly in a finely divided state at substantially atmospheric pressure to temperatures at which the particles are distended by the evolution of volatile substances; the distended particles are then treated with hydrogen under pressure in the absence of a liquid vehicle.  The preliminary heating may be carried out in an oxidizing atmosphere. When using mixtures containing non-caking coals, substances such as ammonium carbonate or sodium bicarbonate, which evolve gases on heating, may be added.  Specification 306,564, [Class 32, Distilling &c.], is referred to.
Patent GB-1361026-A (GB)
Title: Apparatus for measuring fuel consumption of internal combustion engines
IPC: F02D41/30
Filed: 1971-07-02
Abstract: 1361026 Measuring fuel consumption electrically ROBERT BOSCH GmbH 2 July 1971 [9 July 1970] 31018/71 Heading G1N Apparatus for continuously measuring and indicating the fuel consumption of an I.C. engine of a vehicle having a fuel injection system, relative to the distance travelled by that vehicle comprises a circuit 125 connected to the fuel injection quantity adjusting member of the injection valves of the engine and producing a train of electrical pulses 123 proportional to the fuel consumed by the engine per unit time; a circuit arrangement 33, 33a, connected to receive pulses from breaker contact 132a driven by cam 131a synchronized with the shaft of the vehicle speedo, and producing a voltage U n  inversely  proportional to vehicle speed which is multiplied in an indicating instrument 196 with the voltage proportional to the fuel consumption per unit of time to yield the fuel consumption per unit of distance. The pressure in the air intake manifold 112 is monitored by a diaphragm in box 141 linked to the movable core 139 of transformer 137, 138 and acting thereby to determine the duration of the unstable state of monostable multi-vibrator including transistors T1, T2 which unstable state is triggered by breaker 132 and cam 131 rotating with crank-shaft 124 the resultant pulse train 123 actuating the injection valves 113 and being applied also to a stage 31 which shortens the pulses to correct for the supply-voltage-dependent response time of the injection valves. In an alternative embodiment Fig.1, the output pulses of the compensator stage are fed to a modulator stage 33 in which the pulses are amplitude modulated in dependence upon a reference electrical signal applied to the arrowed input of the stage and representing a period of time or distance travelled, to provide an output signal by way of smoothing circuit 34 to indicating instrument 23 and representative of fuel consumption. A further embodiment Fig. 2 (not shown) utilizes a saw-tooth generator (40) of which the peak output voltage represents the width of the pulse from multi-vibrator (30) and representative of fuel consumption since the multi-vibrator controls the open period of the fuel injection valves, the peak voltage being fed to a peak value rectifier (22) where it is clamped and from which it is fed to a device (41) having a plurality of scales (42), (43) and (44) from each of which may be read the fuel consumption per unit distance for an engaged gear.