baber/WOPTO huggingface dataset:
Patent GB-1140465-A (GB)
Title: Improvements in or relating to polytetrafluorethylene bearings
Inventor: BILBE WILLIAM GEORGE
IPC: B29C43/00
Filed: 1966-10-06
Abstract: 1,140,465. Moulding bearing pads. RICHARD KLINGER Ltd. 14 Nov., 1967 [6 Oct., 1966], No. 44638/66. Heading B5A. [Also in Division F2] A polytetrafluoroethylene bearing pad comprising a series of parallel ridges and grooves is moulded from granular material 4 in a mould 1 provided with a bottom metal plate 3 and a configured upper plate 2 to which pressure is applied to produce a preform which is ejected and then sintered at 385‹ to 400‹ C. The pad may have a backing e.g. of refractory applied by the process of Specification 1,085,727. A pair of interengaging pads are employed to support a pipe (see Division F2).
Patent GB-1032646-A (GB)
Title: Cyclopentyl acetic acid ester derivatives
Inventor: ARNKJAER BENT PREBEN
IPC: C07D211/46
Filed: 1963-11-12
Abstract: The invention comprises quaternary ammonium salts of the general formula:  <FORM:1032646/C2/1> where R represents an alkyl group of 4 to 6 carbon atoms, a cycloalkyl group of 5 to 6 carbon atoms, an aralkyl group where the alkyl parts has 1 to 3 carbon atoms, a phenyl group or a phenyl group substituted by a halogen or alkyl group of 1 to 3 carbon atoms; R1 and R2 are the same or different and represent alkyl groups of 1 to 4 carbon atoms; X is an acid residue preferably a halogen or a p-toluene sulphonate group and Y is a direct link or an alkylene group of 1 to 4 carbon atoms. Quaternary ammonium salts are prepared by quaternizing the corresponding bases with substances such as alkyl halides, dialkyl sulphides and alkyl esters of p-toluene sulphonic acid.  The bases are prepared by treating a -R-substituted cyclopentyl acetic acid chlorides, where R is the same as before, which are prepared by treating the free acid with thionyl chloride, with 1-methyl-4-hydroxypiperidine.  g  - (1 - methyl - 4 - piperidyl)propyl a -cyclopentyl phenyl acetate is prepared by reacting g  - (1 - methyl - 4 - piperidyl)propanol with a -cyclopentyl-phenyl acetyl chloride.  g  - (1 - methyl - 4 - piperidyl)propanol is prepared by hydrogenating g -(4-pyridyl)propanol and treating the resulting g -(4-piperidyl)propanol with methyl iodide.  Diethyl cyclopentyl cyclohexenyl malonate is prepared by reacting diethyl cyclopentyl malonate with 1,2-dibromocyclohexane.  a -Cyclopentyl cyclohexyl acetic acid is prepared by treating diethyl cyclopentyl cyclohexenyl malonate with alcoholic potassium hydroxide followed by hydrochloric acid, ether extraction and heat treatment to give a -cyclopentyl cyclohexenyl acetic acid which is hydrogenated to give the desired product.  a -Cyclopentyl-n-hexyl acetic acid is similarly prepared (omitting the hydrogenation) from diethyl cyclopentyl n-hexyl malonate which is prepared from diethyl cyclopentyl malonate and 1-bromohexane.  a -Cyclopentyl-p-methyl phenyl acetonitrile and a -cyclopentyl-p-chlorophenyl acetonitrile are prepared by reacting the corresponding p-substituted phenyl acetonitrile with bromocyclopentane. The corresponding substituted acetic acids are prepared by hydrolysis of the nitriles.  1-ethyl-4-hydroxy piperidine is prepared by reacting 4 - hydroxypiperidine with ethyl bromide.
Patent GB-1419578-A (GB)
Title: Data transmission systems
IPC: H04L25/493
Filed: 1973-09-26
Abstract: 1419578 Digital transmission; synchronizing COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 26 Sept 1973 [26 Sept 1972] 45069/73 Heading H4P A synchronizing arrangement at a receiver in a system in which binary signals are scanned at a multiple of bit rate and code words issued in a continuous sequence to define the time and direction of transitions as described for example in Specification 1,294,731, comprises a first counter of capacity equal to the number of bits per word and means for detecting either of the bit states received in a second counter counting both bits during a period defined by a further counter and an arrangement applying a correction pulse to the first counter at the end of a given number of words if a determined number of bit states have not been counted by that time. The arrangement may be employed in a time division multiplexed telegraph system. The circuit has been developed on the basis that during a given period, the number of separate states received i.e. 0 and 1 is higher than if the system is out of sync., hence if the count of states is higher than a threshold this indicates acceptability; hence corrections are not necessary. If 8 states are detected in a message of 32 words sync. is considered satisfactory, but less than this a shift of one bit is made until 8 is recorded. A positive state is denoted by 1001 and negative by 1000 i.e. first 3 bits = 100 denoting either state which are detected by a shift register 11- 13 comprising D type flip-flops receiving frames of multiplexed telegraphy channels at terminal 2, and recovered clock pulses at terminal 1. Q, #Q outputs connect to AND gates 14-15. Mod 4 counter 20 may receive clock pulses Ho or a correction pulse through OR 21 at a different time; at a count of 4 through AND 22 an input is given to AND 32. A mod 8 counter 30 has full capacity detected by NAND 31 which removes c input from gate 32 hence blocks it. Each time inputs a-c of AND 32 are 1, it advances counter 30. When counter 40 records 32, AND gate 41 resets counter 30. If this has not reached a count of 8, the same pulse advances counter 20 when AND 42 is primed by NAND 31 and this process continues until a count of 8 is reached between resets. AND 15 detects 100 on reference channel 1 of the t.d.m. input and is used in demultiplexor 50 for identification and hence indexing the start of the remaining 47 channels. If however counter 30 reaches 8 before counter 40 reaches 32 NAND 31#0 which closes AND 32. Since counter 30 has recorded 8 sync. is assumed to be correct and AND 42 is also closed. When 32 is reached AND 41 resets counter 30 whereupon NAND 31 reapplies a 1 to "c" of 32. To prevent this 1 being applied immediately to 42 a flip-flop (not shown) is inserted and controlled by a pulse from gate 2, which ensures that gate 42 remains closed until counter 40 has been restored to zero.
Patent GB-1345856-A (GB)
Title: Supercharged reversible internal combustion engine
IPC: F01L13/06
Filed: 1972-09-29
Abstract: 1345856 Reversible super-charged I C engine; stopping and reversing I C engines MASCHINENFABRIK AUGSBURG-WURNBERG AG 29 Sept 1972 [1 Oct 1971] 45193/72 Headings F1B and F1K A super-charged reversible I. C. engine has means for braking the engine as part of a reversing procedure, using air introduced into the or each cylinder during the compression stroke of the associated piston, in which means are provided for supplying at least a portion of the braking air from the or each cylinder when, during engine operation the associated piston is in the region of its T.D.C. position, to an engine supercharger to provide additional driving energy for the supercharger. When the piston 2 is near B.D.C. a valve 4 is opened by control means 5 and a valve 9 is rotated to a position in which air from a compressed air reservoir 6 is directed to the cylinder. The valve 4 is then closed and the piston compresses the air. Near T.D.C. the valve 4 is again opened and the valve 9 is rotated to direct the air to the turbine 7 of an exhaust gas driven turbo-charger. The work done in compressing the air rapidly slows the engine down, the discharge of air to the turbine maintaining the speed thereof, so that supercharging pressure is available to rapidly accelerate the engine in the opposite direction of rotation. Instead of feeding all the air exhausted from the cylinder to the turbine, a part or all of the air may be directed to the inlet of the compressor driven by the turbine.
Patent GB-1112624-A (GB)
Title: Apparatus for cooling pellets of thermoplastic resin during the manufacture of same
IPC: B29B9/06
Filed: 1965-05-25
Abstract: 1,112,624. Pelletizing. CHISSO CORPORATION. 25 May, 1965 [18 June, 1964], No. 45257/67. Divided out of 1,112,623. Heading B5A. Pellets of thermoplastic resin are made by extrusion hot-cutting the resin in air and immediately introducing the viscous pellets thus formed into a whirling stream of a cooling fluid or into a stream of cooling fluid which is subsequently whirled. Apparatus adapted to carry out the former of the above alternatives comprises an upright cylindrical vessel having a convergent lower end terminating in an outlet pipe 3. A whirling stream of water is maintained within the vessel by an inlet pipe 2 tangentially located at the upper end of the vessel and the hot cut pellets drop into the stream, are cooled thereby, and flow with the stream through the outlet to a collecting device. Apparatus adapted to carry out the latter of the above alternatives comprises a flat bottomed vessel 4 having a circular part 9 and water inlet tubes 6. The hot-cut pellets fall into the streams issuing from the tubes 6 and are carried to the part 9 in which the streams are whirled due to the circular configuration of said part. The cooled pellets and water are continuously removed from one side of the part 9.
Patent GB-1322023-A (GB)
Title: Chromic acid conditioner for treatment of polymeric resin  surfaces for electroless plating
IPC: C23C18/24
Filed: 1970-09-23
Abstract: 1322023 Electroless plating of plastics; electroplating CROWN CITY PLATING CO 23 Sept 1970 [23 Sept 1969 (2) 31 Oct 1969] 45421/70 Heading C7B and C7F [Also in Division C3] Polymers are conditioned prior to metal plating by treating with an aqueous chromic acid solution comprising dissolved hexavalent chromium in amount of 1À1 to 1À3 kg, calculated as chromium  trioxide, per litre of solution and sufficient trivalent chromium calculated for said solution at 25‹C.to solubilize said hexavalent chromium. The polymer may be an ABS resin, ethylene polymer, propylene polymer, styrene copolymer or polysulphone resin, and conditioner draining from the treated polymers may be used to prepare electrolytic chrome plating solutions. After conditioning the polymers may be washed with alkali, sensitized with stannous chloride/hydrochloric acid, activated with palladium chloride solution and electroless plated with nickel or copper, e.g. from a bath comprising copper Rochelle salt, alkali, buffer and formaldehyde, and finally electro-plated with copper, nickel, gold, silver and/or chromium. The bond strength of the electroless metal coating to plastic may be improved by aging, the metal being protected during aging by treating with an aqueous solution of a surfactant which is washed off before electro-plating. In examples (1) ABS resin plaques are conditioned, chemically plated with copper and electro-plated with copper/nickel and chromium; and (2 and 3) propylene polymer plaques and (4) polysulphone resin plaques are conditioned and chemically plated and electroplated with copper.
Patent GB-947299-A (GB)
Title: Textile bobbin
IPC: B65H75/10
Filed: 1962-11-30
Abstract: 947,299. Bobbins. STEEL HEDDLE MANUFACTURING CO. Nov. 30, 1962, No. 45537/62. Drawings to Specification. Heading B8M. The split rings which are carried in transverse grooves in the butt of a textile bobbin are prevented from rotating by pegs driven into the butt between the ends of each split ring.
Patent GB-1104289-A (GB)
Title: Novel halogenated cycloalkylethers
IPC: C07C31/13
Filed: 1965-10-27
Abstract: Compounds of the general formula <FORM:1104289/C3/1> in which each of the X radicals, which may be the same or different, represents a fluorine or chlorine atom, n is 0 or 1 and m is 1, 2 or 3, are used as sealing adjuvants for films of polymers of trifluorochloroethylene.  In an example various compounds of the above general formula are used as sealing adjuvants for a thermoplastic film made of a copolymer of trifluorochloroethylene and vinylidine fluoride.  Films made from other polymers, e.g. homopolymeric trifluorochloroethylene and copolymers of trifluorochloroethylene with vinyl chloride, 1,1-chlorofluoroethylene, trifluoroethylene and perfluorobutadiene may be similarly treated.ALSO:The invention comprises halogenated cycloalkylethers of the general formula <FORM:1104289/C2/1> in which the X radicals may be the same or different and are fluorine or chlorine; n is 0 or 1; and m is 1, 2 or 3.  They may be prepared by chlorinating a halogenated ether of formula <FORM:1104289/C2/2> in the presence of actinic radiation and recovering the required compound from the reaction mixture.
Patent GB-1520600-A (GB)
Title: Milking machines
IPC: A01J5/017
Filed: 1976-11-04
Abstract: 1520600 Milking machines KOMBINAT IMPULSA VEB 4 Nov 1976 [6 Nov 1975] 45906/76 Heading A1M Stripping is carried out automatically in response to a preselected reduction in milk flow rate by extension and rhythmic unloading of a ram 18 thus causing downward swinging about a pivot 3 of a rocker arm 1, 2 carrying milking equipment 13, 12, 6, 17, 9 and hence a downward pull on the udder, and removal of the cups 13 is effected in response to a further. reduction in flow rate by switching off the milk vacuum, venting the cups 13, and pulling the cups 13 downwards by means of the ram 18, the milking equipment being swung clear by a ram 28 which pulls on a cable 29 attached to the rocker arm 1, 2 so as initially to swing the equipment in a horizontal plane about pivot 21 and then (as stop 31 abuts an eye 30) in a vertical plane about pivot 25, the milk hoses 17 and the pulse hoses 12 being so dimensioned that the milk hoses 17 become closed by kinking when the cups 13 are released.
Patent GB-1394767-A (GB)
Title: Pressure relief valves
IPC: F16K17/04
Filed: 1973-10-02
Abstract: 1394767 Valves D H WARD 2 Oct 1973 45968/73 Addition to 1350287 Heading F2V The closure member 10 of a relief valve for a storage container is loaded by a resilient disc 21 in which it is held by a bead 16, the bead allowing the valve member to be ejected if exceptionally high pressure occurs within the container.
Patent GB-1104247-A (GB)
Title: Improvements in or relating to process and apparatus for controlling the solidification of ingots cast into ingot moulds
IPC: B22D7/10
Filed: 1965-11-01
Abstract: 1,104,247. Casting processes. H. J. DAUSSAN. 1 Nov., 1965 [4 Nov., 1964], No. 46045/65. Heading B3F. In a process of casting metal ingots means are provided to control the solidification of the ingot to reduce segregation therein. An annular metal disc B, is positioned within the top A of an ingot mould. The disc B becomes welded to the poured metal when it reaches the level of the disc. A hollow perforated plug member C containing a charge of reactive material D is placed over the aperture 1 in the disc and reaction takes place between the material D and the gases produced in the agitating melt to kill the effervescence. The agitated molten metal enters the plug and freezes in the apertures 7 of the upper disc forming plug-like masses 21. The disc B may be supported on the mould by hooks or by external means. The perforated plug may be in the form of two dished members 3 and 4 welded together each perforated or by one perforated dished member 20 closed at the bottom by a destructible partition 9. The mould may be top or bottom poured. A mould for forming the dished plugs is described the mould unit being dipped into a melt the metal freezing thereon. When removed from the melt the air trapped in blind holes in the mould expands to blow holes in the metal disc formed on the mould member, thus producing the perforations. Materials suitable as a reactive agent include calcic. substances such as calcium ferrosilicate, exothermic agents such as fibrous organic materials, e.g. sawdust, paper pulp and substances which kill effervescene such as glass wool or fibre.
Patent GB-1402095-A (GB)
Title: Analysis of moving fluids
IPC: G01N23/223
Filed: 1971-10-04
Abstract: 1402095 Analyzing a fluid NATIONAL RESEARCH DEVELOPMENT CORP 21 Sept 1972 [4 Oct 1971] 46105/71 Heading G1A In a device for analyzing a fluid, the fluid is passed through a tube 8 having an orifice 3 thereby forming a vertical jet (horizontal jet, Fig. 2, not shown), the fluid being investigated by an x-ray source 5 and detector 4 (measuring fluorescence) adjacent the orifice. To prevent the source/ detector being splashed by the jet if the fluidpressure is too low a pressure sensor 8 is incorporated in the tube and it causes a shutter to be moved into the position shown when the pressure is too low.
Patent GB-1273046-A (GB)
Title: Continuous production of ethylene homopolymers
IPC: C08F110/02
Filed: 1969-09-19
Abstract: 1,273,046. Polymerizing ethylene. BADISCHE ANILIN- & SODA-FABRIK A.G. 19 Sept., 1969 [20 Sept., 1968], No. 46197/69. Heading C3P. Ethylene homopolymers of density 0À923 to 0À927 g./c.c. are prepared by continuous polymerization of ethylene in the presence of a freeradical initiator and a polymerization regulator at 160‹ to 350‹ C. and 2100 to 4000 atmospheres in a tubular reactor having two or three successive zones of about the same length, a mixture of ethylene, initiator and regulator being continuously introduced at the beginning of each zone, wherein (1) at the beginning of the first zone a mixture is introduced at 160‹ to 200‹ C. and 2100 to 4000 atmospheres containing 100 parts by weight of ethylene, 0À3 to 0À7 parts by weight of a regulator having a Cs value of I x 10<SP>-2</SP> to 4x 10<SP>-1</SP> and 2 to 100 mole p.p.m. relative to the ethylene of initiator; (2) at the beginning of the second zone a mixture is introduced at 170‹ to 210‹ C. and 2100 to 4000 atmospheres containing 100 parts by weight of ethylene, 40 to 60 weight per cent of the regulator added in (1) of a regulator having a Cs value of 1 x 10-<SP>2</SP> to 4 x 10-<SP>1</SP> and 2 to 100 mole p.p.m. relative to the ethylene of initiator; and when there is a third zone (3) at the beginning of the third zone a mixture is introduced at 170‹ to 210‹ C. containing 100 parts by weight of ethylene, 40 to 60 weight per cent of the regulator added in (2) of a regulator having a Cs value of 1 x 10-<SP>2</SP> to 4 x 10-<SP>1</SP>; provided that the weight ratio of the mixtures introduced to the first and second zones per unit time is 1: 2 to 2:1 and when there is a third zone the weight ratio of the mixtures introduced into the second and third zones per unit time is 1:2 to 2:1. Specified regulators are propionaldehyde, methyl ethyl ketone, acetone, n-butyraldehyde and cyclohexanone. Examples describe the poly. merization of ethylene with oxygen as initiator and (1) propionaldehyde and (2) methyl ethyl ketone. The polymers are useful for making films.
Patent GB-1177028-A (GB)
Title: New 2-Aminonaphthoquinone Derivatives
Inventor: PETERSEN SIEGFRIED
IPC: C07D307/52
Filed: 1968-09-30
Abstract: 1,177,028. Compositions containing 2-aminonaphthoquinones. FARBENFABRIKBN BAYER A.G. 30 Sept., 1968 [10 Oct., 1967], No. 46309/68. Headings A5B and A5E. [Also in Division C2] Bactericidal, fungicidal, naphthoquinone or pharmaceutical compositions comprise a novel naphthaquinone of formula wherein R is H or C 1-4  alkyl, R<SP>1</SP> is C 1-4  alkylidene, Y is H C 1-4  alkyl, C 1-4  alkoxy or halogen and Fur is a radical derived from furan or tetrahydrofuran which may be substituted by alkyl groups, and a solid or liquid diluent or carrier. The compounds have anti-tumour activity and may be used in a method for treating tumours, other than in man, by administering the said compounds optionally in the presence of a diluent. The compounds may also be used in a method for combatting bacteria or fungi by applying to an actual or potential bacterial or fungal habitat the said compounds optionally in the presence of a diluent.
Patent GB-1516318-A (GB)
Title: Filtering a gas stream
IPC: G01N15/00
Filed: 1974-10-28
Abstract: 1516318 Cleaning gas filters BRITISH STEEL CORP 28 Oct 1975 [28 Oct 1974] 46431/74 Heading BIT In a method wherein particulate matter is removed from a gas stream, e.g. a sample stream of waste gas from a basic oxygen steel making process, by passage through a filter the filter is cleaned by stopping gas flow, pressurising both sides of the filter and then releasing the pressure with explosive rapidity from the inlet side of the filter. This may be followed by a purging back flush of gas. In the diagram, the gas stream sample from BOS vessel 10 is directed by line 16 to a heated ceramic filter 17 in a housing 18 by pump 20. To clean the filter: (i) valves V 1 , V 2  and V 3  are closed and valves V 4  and V 6  opened. This connects the filter housing interior to a source 21 of compressed air and raises its pressure to 60-90 psi (4.2-6.3 kg/cm<SP>2</SP>). Next valve V 7  is opened to pressurise the filter inlet side. Finally, valves V 4 , V 6  and V 7  are closed and the pressure explosively released (i.e. in less 100 millisecs) to atmosphere by opening V 8 , V 9  and V 10 . The pressurisation/ depressurisation cycle may be repeated twice more and then on the fourth cycle valve V 6  remains closed, V 8  remains open and V 11  opens to allow a Spsi air bleed into the filter through rotameter 24 for backflushing. Filter blockage may be checked at this stage by differential pressure switch 23. The full pressurisation/depressurisation/purging cycle may be repeated 5 to 15 times.
Patent GB-1403983-A (GB)
Title: Apparatus for treating absorbent strip material
IPC: B05C9/00
Filed: 1971-10-06
Abstract: 1403983 Web treatment apparatus MELODY MILLS Ltd 5 Oct 1972 [6 Oct 1971] 46486/71 Addition to 1362521 Heading D1L In apparatus for treating a continuously moving web of absorbent material (e.g. wallpaper) a web 2 is fed from a supply reel 1 via a creeper feed conveyor 5 and feed rolls 3 to a first wet treatment means 4 and then passes via guide roll 6 through opening 14 into a twin double pass drying tunnel 7 to be dried on a top endless chain band 12 before emerging from the tunnel and passing via support rolls 16 to a second wet treatment station 17 which applies a second coating to the coated side of the web, after which the wet web is again fed to the drying tunnel 7 through an opening 18 and passes along the lower part of the tunnel on bottom endless chain band 13, the dried web emerging from the tunnel at 23 and passing via guide rolls 24 and support rolls 25 beneath the web supply reel 1 to a third wet processing stage 26 at which the uncoated side of the web is coated, the web then being passed to wind-up reel 34 via guide rolls 27, a further double pass drying tunnel 28 having only one endless chain band 29 and second creeper feed conveyor 33. In the embodiment illustrated the apparatus is used for treating wallpaper, the first wet treatment means 4 is a pigment coating station, the second wet treatment station 17 imparts a decorative finish to the coated web e.g. by the Application of an aqueous solution, dispersion or emulsion of a micaceous material and the third wet treatment station 26 is a pre-pasting stage at which an aqueous solution of an adhesive is applied to the back of the paper web 2.
Patent GB-1188899-A (GB)
Title: Armchair with a Platform.
Inventor: KROPIK GUENTER
IPC: A47C7/70
Filed: 1968-10-01
Abstract: 1,188,899. Chairs. G. KROPIK. 1 Oct., 1968, No. 46621/68. Heading A4H. A platform 2 is secured to the upper end of a shaft (3) rotatable in ball bearings (6, 7) in an arm rest 4 of a chair and in the base of the chair, and the underside of the platform is provided with a pad 10 of friction material, e.g. rubber, which engages a similar pad 11 on the other arm rest 12 when the platform is swung in front of the chair. The pads may have teeth.