baber/WOPTO huggingface dataset:
Patent GB-777967-A (GB)
Title: A method and apparatus for providing a permeable tube with an impermeable lining
IPC: B29C48/153
Filed: 1954-09-09
Abstract: <PICT:0777967/III/1> <PICT:0777967/III/2> In a process for providing a permeable tube with an impermeable inner lining integral therewith thermoplastic material is passed through the walls of the tube as it is continuously advanced and is extruded as a ring within the tube while blocking off that portion of the tube through the walls of which thermoplastic material has not yet been passed, the permeable tube is closed some distance beyond that at which the thermoplastic material is extruded so as to form a closed tube section, air is directed under pressure into the centre of the permeable tube within the ring of thermoplastic material, thereby expanding the ring to form an interior impermeable lining forced into contact with the interior of the tube so that it adheres thereto and becomes integral therewith.  As shown in Fig. 1 a tube of flexible permeable material is drawn from a reel 1 between rollers 3 and opened by passing over a tubular cylindrical former.  It then is passed between an assembly 20 serving as a mandrel and members 10, 11 bolted together and mounted on a base member.  After receiving a coating of thermoplastic material is passes between rollers 7 and is wound on a reel 8. Compressed air, for removing dust, is introduced at the inlet 14 and is passed to a chamber 18, through apertures 19 to an annular chamber 21, through apertures to a chamber 22 and through a filter 23 to a chamber 24 connected by apertures 25 and chamber 26 to suction outlet 15.  The tube is gripped between rollers 39, 40 and is passed over openings 28 fed from a pipe 16 connected to an extrusion device E with thermoplastic material at a suitable temperature.  The material is passed through the tube through openings 29 to channels 32 between a guiding die 31 and a surrounding ring and to channels 33 within the die.  The tube is passed between rolls 41, 42 and the squeezed out material passes through openings to the main stream.  The tube is passed over rotary toothed wheels 44 which perforate the surface, and over compressed air inlet 17 which supplies air to an annular chamber 34 connected by ducts to a ring 35 in the die, supplying channels 36, and to a central opening 37, supplying duct 38.  Air from the ducts blows the tubes 48, 49 of thermoplastic material on to the inner surface of the tube of permeable material in layers.  If the tube is rigid the squeezing device grips without deforming the tube and part of the device is rotatably driven to advance the tube.  A piston may be used to grasp the tubes and advance with them.  Heating means 45, 46 are provided to maintain the thermoplastic material at the required temperature.  The material can be used for impermeable packing bags.
Patent GB-991301-A (GB)
Title: Improvements in or relating to filter inserts
IPC: B01D29/41
Filed: 1962-07-09
Abstract: 991,301. Filters for liquids. A. KNECHT. July 9, 1962 [Sept. 13, 1961], No. 26167/62. Heading B1D. At least two biconical filter elements 1, 2 are located between a shoulder 19 (on an outer supporting member 8) and a shoulder 20 (on an inner supporting member 9), the supporting members being of plastics material and having inter-engaging cylindrical parts 11, 15 respectively. Sealing beadings 13, 17, 18 may be provided.
Patent GB-1074730-A (GB)
Title: Process for the production of 2,4-di-(hydroxycyclohexyl)-2-methyl-pentanes
Inventor: WEIBEL OSKAR
IPC: C07C35/14
Filed: 1966-06-13
Abstract: The invention comprises 2,4-di-(hydroxycyclohexyl)-2-methyl-pentanes and a process for the preparation thereof wherein a dimeric isopropenyl-phenol is hydrogenated in the presence of a conventional hydrogenation catalyst in two temperature stages, the first stage being carried out within the temperature range of 70 DEG  to 150 DEG C. and the second stage within the temperature range of 160 DEG  to 250 DEG  C.  In examples, nickel-copper-kieselguhr, skeletonnickel and nickel-copper-chrome catalysts are employed.
Patent GB-958122-A (GB)
Title: Record releasing device for gramophone record changers
IPC: G11B17/14
Filed: 1960-07-28
Abstract: 958,122. Gramophone centre-posts. USINES GUSTAVE STAAR S.A. July 28,1960 [July 31, 1959], No. 26333/60. Heading G5R. A centre-post comprises a thimble 28, concentrically screwed to a tube 19 guiding an assembly Fig. 12 including a resilient member 23 carrying four bifurcate arms 12, rocked by movement of a control rod 4, one movement in each direction releasing the lowest of a stack of stored records, and lowering the stack by one record's thickness respectively. The resilience of the arms 12 allows for handling records of differing thickness, (Fig. 7). In another embodiment (Figs. 13-19, not shown), rigid bifurcate members are supported so as to rock about a wire ring raised and lowered by the rod 4, the lowest record being similarly released.
Patent GB-670055-A (GB)
Title: Vermin trap
IPC: A01M23/34
Filed: 1949-10-14
Abstract: 670,055. Vermin traps. MILLER, T. Sept. 21. 1950 [Oct. 14, 1949], No. 26419/49. Class 5(i) In a rabbit trap the ends of a wire noose 11 are passed through the frame 3 and attached to the limbs 8 of a spring 10. An arm 6 holds down the limbs 8 while caught under a hook 4 on the platform 2. A pin 16 resting on the limbs 8 and engaging- a pivoted hook 15 retains the spring during the setting of the trap.
Patent GB-395198-A (GB)
Title: Improved manufacture of alcohols
IPC: C07C29/149
Filed: 1932-09-23
Abstract: Alcohols are obtained by the catalytic hydrogenation of mixed anhydrides of organic carboxylic acids and oxygenated inorganic acids.  In the examples, (1) borostearic anhydride is hydrogenated at 250 DEG  C. under pressure in the presence of copper chromite, and the product is filtered and distilled; octodecyl alcohol is obtained; (2) borolauric anhydride is hydrogenated as in example 1, yielding dodecyl alcohol; (3) mixed anhydrides of boric acid and cocoanut oil acids are hydrogenated at 250 DEG  C. under pressure in the presence of copper chromite containing barium, yielding a mixture of higher alcohols; (4) silicostearic anhydride, prepared by heating stearic acid with silicon tetrachloride, is hydrogenated at 270 DEG  C. under pressure in the presence of copper chromite, yielding octodecyl alcohol; (5) mixed anhydrides of silicic acid and cocoanut oil acids, obtained by heating cocoanut oil acids with silicon teatrachloride, are hydrogenated at 250 DEG  C. under pressure in the presence of copper chromite, yielding a mixture of higher alcohols; (6) silicophenylacetic anhydride, obtained by heating phenylacetic acid with silicon tetrachloride, is hydrogenated at 130-200 DEG  C. under pressure in the presence of copper chromite, yielding phenylethyl alcohol.  Reference is made also to the production of dodecyl alcohol by hydrogenating silicolauric acid anhydride, which is obtainable similarly to the anhydrides used in examples 4-6.  The hydrogen used may be pure or diluted with other gases such as nitrogen, carbon monoxide, or carbon dioxide.  Other catalysts which may be used are zinc, silver, nickel and copper, finely divided nickel chromite, and nickel chromite or copper chromite precipitated on a support such as kieselguhr or asbestos.
Patent GB-265696-A (GB)
Abstract: 265,696. Gledhill, A. H. Nov. 14, 1925. Factory and like t i m e - recorders, card type.-In apparatus provided with card clipping mechanism an arresting device movable with the said mechanism prevents the main operating lever or printing hammer functioning until a feeler on the clipper mechanism makes contact with the face of an inserted card when it is in correct position in the card - holder. As shown in Figs. 1 and 2, the arresting device comprises a plate C pivoted to the plunger b carrying the cutter B and normally co-operates with a stop c' on a fixed part of the mechanism. The feeler' D is formed as a projection on a card support a slidably mounted in a slot b<1> in the plunger b and the card support a has a lateral rear arm a<1> co-operating with a cam surface c<2> on the plate C. If no card is present the arm a' moves with the plunger and maintains the plate C in position to engage the stop c<1>; when a card is in position on the support a the movement of the support is arrested by the feeler D and the cam surface moves over the arm a<1> to raise the plate C clear of the stop c<1> thereby freeing the main operating handle or printing hammer. The connection between the main handle E and the clipper plunger b comprises a link e and arms e<1>, e<3> on the shaft e<2>. Specification 250,740 is referred to.
Patent GB-1217455-A (GB)
Title: Improvements in or relating to electrical connectors
IPC: H01R12/88
Filed: 1969-05-27
Abstract: 1,217,455. Mounting electrical equipment. INTERNATIONAL BUSINESS MACHINES CORP. 27 May, 1969 [17 June, 1968], No. 26705/69. Heading H1R. [Also in Division H2] A connector for use with printed circuit boards comprises spring contacts 12 operable by cams 18 to move apart to facilitate insertion of a board 20. The housing is of a high strength resinous material, e.g. glass-filled polycarbonate or epoxy resin. The contact points may be gold-plated. Additional biasing means may be provided to increase contact pressure. A series of such connectors may be used with a stack of boards with high density circuitry in a tank containing a liquid coolant and a heat-exchange unit (Fig. 3, not shown).
Patent GB-602410-A (GB)
Title: Improvements in or relating to control systems for superchargers
IPC: B64D13/04
Filed: 1945-10-15
Abstract: 602,410. Fluid-pressure servomotor-control systems. BENDIX AVIATION CORPORATION. Oct. 15, 1945, No. 26940. Convention date, July 19, 1944. [Class 135] A control system for a supercharger 11 in which a differential air pressure proportional to the flow from the supercharger acts through a servo-mechanism on a valve 8 controlling the pressure in a liquid pressure control device through which a driving torque is transmitted to the supercharger is characterised in that the servo mechanism comprises primary and relay servomotors 29, 39, respectively, the operation of valve 8 by the relay servomotor producing a follow-up action to bring the pilot valve 35 of the relay servomotor to neutral with the controlled liquid pressure proportioned to the movement of the primary servomotor of which the pilot valve 26 is displaced by a change in the differential air pressure, and the primary servomotor operates the pilot valve 35 through a mechanism including a follow-up to bring its own pilot valve 26 to neutral. The discharge from the supercharger passes through a venturi 13 and the differential pressures so produced are applied to an adjustable spring-loaded diaphragm 17. Movement of the diaphragm is transmitted through a lever 21, link 23, and a floating lever 24 to valve 26. The resulting movement of servo-piston 29 is transmitted through a floating lever 33 to pilot valve 35 and through a link 25 to floating lever 24 to reset valve 26. Link 25 may include in its length a spring- centralized dashpot with a leaky piston to give a control proportional to the rate of change of the variable. The datum control point is adjustable by means of a knob 22 which shifts the fulcrum of lever 21. Valve 8 is integral with one of the pistons of the relay servomotor 39 and serves to throttle the discharge from a gear pump 7 which is driven from the planet carrier 5 of a variable speed-gear interposed between the engine shaft 1 and the supercharger. The engine drives a ring gear 2 which engages with the planet-wheels 4 and the latter also engage a sun-wheel 3 driving the supercharger. The pressure in the output conduit of the pump 7 acts on a piston 40 which is connected to the floating lever 33 so that, while movement of piston 40 will centralise pilot valve 35, it will also tend to re-open pilot valve 26. The Specification as open to inspection under Sect. 91 comprises also a modification in which pilot valve 26 is controlled by a bellows subject to induction pipe pressure, and piston 40 is replaced by a bellows subject to exhaust back pressure ; and the relay servomotor operates a waste gate controlling the supply of exhaust gas driving a turbo-supercharger. This subjectmatter does not appear in the Specification as accepted.
Patent GB-990466-A (GB)
Title: Process for the preparation of bis-azolyl-thiophene derivatives
IPC: C07D413/14
Filed: 1961-07-25
Abstract: The invention comprises tetrahydro thiophene derivatives of the general formula <FORM:0990466/C2/1> in which A represents the residue of an o-phenylene radical which is unsubstituted or substituted by a halogen atom, an alkoxy or alkyl group with at most 4 carbon atoms, or a phenyl group and X is an oxygen atom, a sulphur atom or the group <FORM:0990466/C2/2> in which R is a hydrogen atom, or an alkyl, alkenyl or hydroxyalkyl group with at most 4 carbon atoms, and also the acid addition salts of those compounds in which X is <FORM:0990466/C2/3> These compounds may be prepared by reacting an aminobenzene of formula <FORM:0990466/C2/4> an addition salt thereof, at an elevated temperature with tetrahydrothiophene-2,5-dicarboxylic acid or with a functional derivative thereof, e.g. an ester or an acid dihalide.  The reaction is preferably carried out in the presence of a dehydration catalyst, e.g. boric acid, sulphonic acids of the benzene series, polyphosphoric acids and zinc chloride. Alternatively the reactants may be heated in an aqueous mineral acid. The tetrahydrothiophene derivatives of the general formula given above may be converted to the corresponding thiophene compounds by treating with a dehydrogenating agent at elevated temperature. Suitable dehydrogenating agents are, for example, compounds of divalent mercury such as the acetate or oxide; potassium permanganate; manganese dioxide; copper oxide or sulphate; hydrogen peroxide; selenium dioxide; platinum oxide; ferric salts such as the sulphate and chloride; nitro compounds such as nitrobenzene or a mixture of nitrobenzene and quinoline; air mixed with quinoline; finely divided nickel, copper, platinum or palladium; bromine, chlorine phosphorus pentachloride, sulphuryl chloride, thionyl chloride and sulphur chlorides.  The dehydrogenating agents are preferably used in the presence of solvents.
Patent GB-1421126-A (GB)
Title: Processing silver halide photographic materials
IPC: G03C7/305
Filed: 1972-12-28
Abstract: 1421126 Producing photographic yellow dye images FUJI PHOTO FILM CO Ltd 28 Dec 1972 [28 Dec 1971] 27008/75 Divided out of 1421123 Heading G2C A yellow dye image is produced by developing an imagewise exposed silver halide material by treating the material with an aqueous alkaline developing bath containing an aromatic primary amine developing agent in the presence of a yellowforming coupler of the Formula:- where R is arylene, and bleach-fixing with a bath containing an oxidizing agent for silver and a solvent for silver halide whereby silver and undeveloped silver halide in the material are converted to water-soluble compounds. Colour couplers for use in this process are disclosed and some are claimed in Specification 1421123 and may be incorporated in the material or developer. The oxidizing agent is preferably a ferric chelate complex of ethylenediamine tetraacetic acid. In this process dye formation is completed in the colour developer and so a strong oxidizing agent e.g. potassium ferricyanide need not be used and waterpollution is reduced.
Patent GB-1262413-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: JOHANSSON KARL BORJE VILHELM
IPC: F28F3/08
Filed: 1970-06-04
Abstract: 1,262,413. Plate heat exchangers. ALFA LAVAL A.B. 4 June, 1970 [13 June, 1969], No. 27051/70. Heading F4S. In a heat exchanger plate 2 having a dovetailshaped recess 3 in its upper edge arranged to engage a horizontal flange of an I-section suspension beam 1, the recess 3 is so shaped and dimensioned in relation to the beam that the plate is removable from the beam by swinging it in its own plane (see Fig. 2). This construction permits a single plate to be simply removed from a stack of gasketed plates. The lower part of the recess 3 has a central projecting section 5 which prevents the plate, when it is suspended from the beam moving either vertically or laterally. The edge of the plate is strengthened around the recess as is indicated by a dotted line 4. A similar recess 7, through which a shaft 8 extends is provided in the lower edge of the plate.
Patent GB-329925-A (GB)
Title: Improved means for anchoring railway rails
IPC: E01B13/00
Filed: 1929-09-05
Abstract: 329,925. Andreyanoff, B. P. Sept. 5, 1929. Anchoring tram and like rails.- Rails are anchored to a foundation 1 below the track by longitudinally inclined members 2, Fig. 3. The members are pivoted either to irons 15 secured by clamps 17 to the rail or to plates welded to the rail base. 'The foundation may consist of railway sleepers and boards nailed together or of a reinforced-concrete slab with corrugations 8 on its lower face and square hollow recesses 9 on its upper face. The members 2 may be supplemented by lateral members 37, 37', Fig. 21, which may have outer members 47, 471.
Patent GB-502465-A (GB)
Title: Improvements in or relating to milling machines or other machine tools
IPC: F16H3/14
Filed: 1937-06-14
Abstract: 502,465. Milling - machines ; changespeed gearing ; ratchet clutches. KEARNEY & TRECKER CORPORATION. June 14, 1937, No. 27071/38. Convention date, June 22, 1936. Divided out of 502,401 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 23, 1937. Drawings to Specification. [Class 83 (iii)] [Also in Group XXIV] A machine tool such as a milling-machine has gearing including an overrunning clutch to feed a slide at slow speed and further gearing to move the slide at high speed, the high speed being selectively engaged by a clutch and synchronizing or retarding means rotating with the overrunning clutch being provided to quickly render the low speed operative as soon as the high speed clutch is disengaged. The machine embodiment is the same as that described in Specification 502,401, which is referred to. Specification 499,189 also is referred to.
Patent GB-730607-A (GB)
Title: Improvements in or relating to cathode ray tubes
Filed: 1952-10-28
Abstract: 730,607. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., ALLARD, L. S., and HILL, R. T. J. Oct. 28, 1953 [Oct. 28, 1952], No. 27122/52. Class 39 (1). The target of a memory tube, which is scanned by separate electron beams, or by one beam, modified both for recording and removing the electrical signals, is constructed of roughened aluminium coated with aluminium oxide by electrolysis. Aluminium plates are shot-blasted with alumina particles of specified size, washed in hot water for five minutes, and dipped in a solution of caustic potash. Aluminium wire is then used to hold the washed and dried plates for ¢ hour in an electrolytic bath which contains sulphuric acid and an aluminium electrode. The plates are then washed in hot water and dried.
Patent GB-628539-A (GB)
Title: Improvements in the manufacture of domestic cooking vessels and like containers
IPC: A47J36/02
Filed: 1945-10-17
Abstract: 628,539. Domestic cooking vessels. SOMVILLE, O. Oct. 17, 1945, No. 27149. Convention date, April 24. [Class 66] A cooking vessel &c. has an interior 1 of dense] aluminium, e.g. sheet metal, than that of the outer part 2 of the vessel The part 2 may be cast on to the part 1.
Patent GB-896892-A (GB)
Title: Improvements in or relating to machines for tedding hay and other crops
Inventor: SPINDLER JOHN EDWARD
IPC: A01D78/02
Filed: 1959-08-07
Abstract: 896,892. Haymaking machines. VAN DER LELY N. V., C. July 28, 1960 [Aug. 7, 1959], No. 27170/59. Class 6(3). In a hay-tedder of the type having a rotatable tined cylinder with its axis transverse to the direction of travel, the tines 34, 35 are mounted on tine-bars 33 which are adjustable about axes parallel to the axis of the cylinder so that the angle of attack of the tines relatively to the crop can be varied. The frame consists of a U-shaped beam 1, 2, 3 with bent-over ends 4, 5 which are reinforced by longitudinal members 6, 7 and an arched transverse beam 8. Vertically and angularly-adjustable swivelwheels 9, 10 are mounted on the ends of the frame which is towed by a draw-bar 22. The cylinder comprises end-discs 31, 32 and a centredisc 41 interconnected by threaded tie-rods 54 which can be tightened to stiffen the structure. The tine-bars are received in bearings in the discs 31, 32, 41 and carry the tines by means of clamps 37, 38 arranged along the bars. At the ends of each bar is an arm 41 carrying at its end, a captive spring-loaded pin 42 which may be entered into one of a circular series of holes 45 in the corresponding end-disc. The cylinder is driven from the towing tractor through an input shaft 59 and gearbox 60 the drive continuing through a sleeve 62 to a belt-transmission (not shown). A retractable stand 15 supports the implement when uncoupled and it may be drawn endwise for transport.
Patent GB-1509999-A (GB)
Title: Guiding and sealing arrangements for pistons piston rods and the like
IPC: F16J15/32
Filed: 1975-06-26
Abstract: 1509999 Shaft seals W HUNGER 26 June 1975 [26 June 1974 21 Aug 1974 24 Dec 1974] 27177/75 Heading F2T A seal for a hydraulic piston or piston rod comprises one or more ring seals 41 having a sealing lip 39 in contact with the sliding surface 30 and a sliding guide ring 46 of abrasion resistant material bearing on the surface 38 and disposed in a converging sided 51, 52 annular groove in the ring seal. The base of the groove may be curved 47 and the seal may have a drag oil stripper lip 40. A plurality of seals may be used in a single or separate grooves in the body to be sealed.
Patent GB-710934-A (GB)
Title: Improvements in containers for toilet articles in stick form
Inventor: HAILES MYLES BASIL
IPC: A45D40/02
Filed: 1950-11-08
Abstract: 710,934. Holders for lipsticks &c. LEVER BROS. & UNILEVER, Ltd. Oct. 22, 1951 [Nov. 8, 1950], No. 27262/50. Class 18 A lipstick or like holder comprises a base member carrying the stick and surrounded by a sleeve axially moveable on the base to expose the stick. In one form the base 1 and sleeve 3 have co-operating screw threads; in another form the sleeve slides over the base. The sleeve is fitted with a closure cap and stop means, such as projections 7 limit the relative movements of the elements 1, 3.
Patent GB-1446498-A (GB)
Title: Injection moulding
IPC: B29C45/77
Filed: 1974-06-19
Abstract: 1446498 Injection moulding machine control BRITISH INDUSTRIAL PLASTICS Ltd 26 March 1975 [19 June 1974] 27300/74 Heading B5A [Also in Division G3] In an hydraulically operated injection moulding machine having a variable speed hydraulic drive including a variable speed D.C. motor, and an electrical control system therefor arranged to vary the speed and torque of the motor directly in accordance with the hydraulic requirements of the machine throughout a moulding cycle, the control system includes means operable to sense the armature current of the motor and to generate a signal therefrom, together with programming means operable to cause the armature current signal to assume primary control of the machine at a preselected time and for a preselected period in the moulding cycle. Means may also be provided for sensing the speed of rotation of the motor and producing a signal which is used during the screwback part of the moulding cycle to maintain the screw rotation speed and melt condition sensibly constant. If the armature current signal falls outside pre-chosen upper and lower values a signal is generated to vary the temperature of the injection cylinder to bring the melt viscosity between corresponding limits.