baber/WOPTO huggingface dataset:
Patent GB-723779-A (GB)
Title: Improvements in and relating to apparatus for the liquid treatment of artificial textile threads
Inventor: ENTWISTLE DONALD
IPC: D01D10/04
Filed: 1951-08-31
Abstract: In apparatus for the aqueous liquid treatment of artificial textile threads comprising a pair of rollers rotated in the same direction and over and along which the thread can pass in a number of spaced convolutions, the rollers are <PICT:0723779/IV (a)/1> arranged vertically one above the other and are divided into two or more treatment zones, each roller is stepped, the diameter of each succeeding step increasing from the thread take-up end to the thread-discharge end of the roller, the end of each treatment zone coincides with a step on the roller so that a liquid applied to the lower roller in a zone will be confined to that zone, and a guide is provided at each step to locate the thread on either side of the step.  As shown, a thread 3 is advanced over rollers 1 and 2 rotating in the same direction and having initial stepped portions 4 and 5. The thread is led on to the main parts of the rollers by a thread guide 6.  The main parts are divided longitudinally into two treatment zones 14, 15 by steps 7, on either side of which the thread is located by a thread guide 8. The rollers 1 and 2 are of cantilever construction and are mounted on shafts 9 driven through gearing 10 by a motor (not shown).  The lower roller 2 is arranged with its axis at a slight angle to the horizontal, tilting downward to the thread entrance end of the rollers.  In the first treatment zone 14 regeneration of the thread is allowed to proceed without addition of a liquid.  A liquid is applied to the lower roller 2 from a pipe 11, which is connected by a conduit (not shown) to a supply of liquid. The liquid separates from the rollers in the region of the steps 7 and collects in a drip-pan 12.  Surplus liquid carried over by the thread 3 from the coagulating bath collects in a drip-pan 13. Specification 723,780 is referred to.
Patent GB-1262641-A (GB)
Title: Improvements in or relating to trawling
Inventor: HEPBURN CLAUDE
IPC: A01K73/053
Filed: 1968-05-01
Abstract: 1,262,641. Ground rope bobbin. J. H. FENNER & CO. Ltd. 1 May, 1969 [1 May, 1968], No. 20610/68. Heading A1A. A trawl bobbin comprises an outer shell of impact and abrasion resistant elastomeric material, the interior of which is filled with a further elastomeric or plastics material, or cork, which does not necessarily possess good wear properties. The density of the interior material may vary. A hole through the bobbin is provided for threading it onto a ground rope. The shapes of the bobbin may be spherical, ellipsoidal, cylindrical or disc shaped.
Patent GB-1272671-A (GB)
Title: Coin acceptor having resistivity and permeability detector
IPC: G07D5/08
Filed: 1969-04-23
Abstract: 1,272,671. Bridge-network coin testers. VENDO CO. 23 April, 1969 [8 Jan., 1969], No. 20652/69. Heading G4V. A coin tester comprises a bridge network which assumes a validity-indicating condition when a valid coin passes through a test station and delay means having a predetermined signal output condition assumed after a time period following sensing of a coin passing through the test station, the arrangement being such that a coin is accepted if the network is in its validityindicating condition when the delay means assumes its predetermined output condition. In the embodiment shown an elliptical coil 16 is situated either side of passageway 14, Fig. 2, each with its major axis along the length of the passageway. A light source 24 and a light detector (26), Fig. 3 (not shown), are vertically adjustable in slots 22, their positions relative to coils 16 being adjusted in dependence of the diameter of the coins to be tested so that the test may be completed while a respective coin is approximately centrally positioned relative to the coils; typically a test period is 4 m sec. If a coin is acceptable an accept electromagnet 36, Fig. 1 and Fig. 4 (not shown), is actuated to withdraw deflector 30, Fig. 2, and allow the coin to enter accept path 34, otherwise coins follow reject path 32. Coils 16 form one arm of a bridge circuit 42, Fig. 1, aligned to be in a balanced condition at terminals 62, 64 when an acceptable coin passes between the coils. As shown. a further bridge is formed by the provision of arms 120, 122 to allow, for example, testing of coins of the same denomination but different composition. In this case a balanced condition is obtained at outputs 62, 124. When light from soucre 24 is obturated, detector 26 becomes non-conductive as consequently does a transistor 92, the latter being held in this state for the test period, e.g. 4 m sec., by capacitor 94 and resistor 90. With change of state of transistor 92 a positive pulse is delivered to the gate of silicon controlled rectifier 84. The period of gating of SCR 84 depends on the cessation or otherwise of a pulse train (146), Fig. 6 (not shown), from differential amplifier 70. Cessation occurs when bridge 42 is balanced, i.e. on valid coin insertion, and in consequence a transistor 80 remains in continuous conduction as does SCR 84. When transistor 92 becomes condutive at the end of the test period, an amplifier 100 is turned off and an accept transistor 114 is placed in conduction. If at this instance SCR 84 is also in conduction, i.e. the coin is valid, accept electromagnet 36 is actuated. The apparatus may comprise a plurality of channels 14, Fig. 2, each for a different denomination and each comprising units such as 134, 136, Fig. 1, comprising the same network as shown in Fig. 1, but sharing a common oscillator 54.
Patent GB-859340-A (GB)
Title: Rake-wheel hay-rake
IPC: A01D80/00
Filed: 1958-06-27
Abstract: 859,340. Haymaking machines. MASCHINENFABRIK FAHR A.G. June 27, 1958 [June 27, 1957], No. 20673/58. Class 6(3). In a haymaking machine having rake-wheels which are driven directly by groundcontact, either the peripheral tines on the rakewheels or the means for supporting these tines on the rims are of rubber or similar non-metallic resiliently-deformable material. As shown in Fig. 2, the tines 5 are rigid but are mounted in the wheel-rim 8 by rubber bushes 7. In Fig. 6, the roots 15 of the tines 16 are embedded in a rubber band 14 surrounding the wheel-rim. In other modifications the tines are also of rubber and are either inserted in holes in the wheel-rim or are integral with the band 14, which may be made in segments, one segment hooking over the end-tine of an adjacent segment.
Patent GB-791010-A (GB)
Title: Improvements in or relating to oxygen breathing apparatus, intended primarily for the use of firemen
IPC: A62B7/02
Filed: 1955-07-18
Abstract: 791,010. Respiratory apparatus. CRUCEFIX, D.J. July 17, 1956 [July 18, 1955], No. 20727/55. Class 81 (2). [Also in Group XXVIII] Oxygen breathing equipment includes a manually-operable relief valve having an out. let detachably interconnected with a tube for passage of gas from or into the equipment. A flexible transfer tube 12 has at each end a socket 1 which contains a transfer valve head 2 having a stem 3 connected to a stop ring 4 having holes 5. When a socket 1 is fitted over the outlet 8 of a relief valve of an oxygenbreathing apparatus, a head 10 on the relief valve stem 6 is engaged by the stop ring 4 of the transfer valve to unseat the relief valve head 7 and the transfer valve head 2 simultaneously, against springs 11, 13 respectively. The transfer tube is used to supply breathing apparatus with extra oxygen from either an oxygen supply or another breathing apparatus by interconnecting the relief valves.
Patent GB-355891-A (GB)
Title: Electrically controlled stopping mechanism for talking machines or gramophones
IPC: G11B17/02
Filed: 1930-07-09
Abstract: 355,891. Gramophones. MAINS RADIO GRAMOPHONES, Ltd. and ROBERTS, E. H., 8, Vaughan Street, Bradford, Yorkshire. July 9, 1930, No. 20748. [Class 40 (ii).] Stopping.-Gramophones with electric pick-ups are stopped at the end of a record by the action of a thermionic relay influenced from the amplifying circuit of the pick-up, this relay operating, when the grid of the valve is not excited by the pick-up, as at the end of the playing grooves of a record, to arrest an electric driving motor or to apply a brake. The pick-up is connected through a transformer a to the grid c<2> of a valve c which is negatively biased as that the anode current is small. A relay g in the anode' circuit closes a switch h<2> in a line h so long as the pick-up imposes oscillations on the grid and maintains a current through the valve. At the end of a record, oscillations are no longer imposed on the grid and the relay then allows the switch h<2> to open, whereupon the motor circuit is broken or a brake applied. The relay conveniently embodies a tilting mercury switch.
Patent GB-1103243-A (GB)
Title: Thermoplastic compositions containing graft polymers and vinyl chloride polymers and process of making same
IPC: C08L27/06
Filed: 1965-05-17
Abstract: Thermoplastic polymer compositions comprise a homogeneous mixture of (a) a graft polymer obtained by coagulation and graft polymerization of an aqueous latex or dispersion of 20 to 70 parts by weight of polybutadiene or a copolymer having a preponderant proportion of butadiene and a minor proportion of one or more comonomers, the grafting being effected with 80 to 30 parts by weight of a monomer mixture comprising 5-70% by weight of an alkyl methacrylate and 95 to 30% by weight of a vinyl aromatic compound and (b) polyvinyl chloride or a copolymer having a major proportion of vinyl chloride and a minor proportion of one or more comonomers.  Component (a ) is prepared by commencing grafting when at least 90% of the coagulated butadiene polymer particles are not more than 0.2 microns in diameter, as described in copending Application No. 20784/65.  The butadiene copolymer may comprise acrylonitrile, an acrylate ester or a vinyl aromatic hydrocarbon as comonomer.  The vinyl aromatic component of the grafting monomers may be, for example, styrene, methylstyrene or a nuclear-substituted styrene such as vinyl toluene, isoprepenyl toluene or chlorostyrene. Suitable comonomers for copolymer component (b) include vinyl acetate, vinylidene chloride, methacrylate esters and acrylonitrile. Graft polymerization of component (a) can be effected with hydrogen peroxide, a persulphate or cumene hydroperoxide as catalyst; in the examples ferrous sulphate and dextrose are additionally present.
Patent GB-139114-A (GB)
Title: Improvements in apparatus employed in drawing and spinning hemp, flax, and other fibrous materials
IPC: D01H13/04
Filed: 1919-08-23
Abstract: 139,114. Lovett, J., and London Spinning Co. Aug. 23, 1919. Tension arrangements.-A nipper or condenser which controls the passage of slivers of hemp, flax, and other fibrous material from endless chains of gill pins to the spinning-apparatus comprises a pivoted jaw B acting under the control of a torsion spring D in a throat piece A. The jaw is secured to a shaft C, and is provided with an adjustable cylindrical block B<2>, which co-operates with a renewable part F provided with a V or U-shaped groove f in the throat-piece. The cylindrical block is secured in the jaw by means of screws b, b<3> and may be adjusted for wear by inserting a pin in one or another of a series of holes b<1>. A corresponding series of holes is arranged on the outer face of the cylindrical block to facilitate the adjustment. When it is worn all round, the cylindrical block may be turned end for end. The outer end of the spring D is secured to a plate E fixed to the shaft; by turning the plate against the action of the spring the passage through the throat-piece may be fully opened for cleaning or other purposes. A stop a<3> limits the movement of the jaw. The throatpiece is bevelled as shown at a to facilitate the passage of the gill pins.
Patent GB-461949-A (GB)
Title: Improvements in the process of catalytic oxidation of naphthalene
IPC: C07C51/31
Filed: 1935-07-25
Abstract: Phthalic anhydride is produced by the catalytic oxidation of naphthalene by air diluted with an inert gas, the amount of air supplied being not substantially greater than the theoretical requirement.  The diluent may initially be carbon dioxide and later the inert gases obtained from the reaction products.  The reaction is preferably carried out in an apparatus of the type described in Specification 461,888, [Group III], with a vanadium oxide catalyst. Proportions specified are 70 cub. ft. of air made up to about two or three times its volume with carbon dioxide per pound of naphthalene.
Patent GB-1173995-A (GB)
Title: Improvements in Valves having Gate Blocks
IPC: F16K3/316
Filed: 1967-05-04
Abstract: 1,173,995. Valves. SOC. FINANCIERE ET INDUSTRIELLE DES ATELIERS ET CHANTIERS DE BRETAGNE. 4 May, 1967 [6 May, 1966], No. 20854/67. Heading F2V. A gate valve has a rotary nut 21 held captive in a rotary sleeve 22 by locknut 23. The sleeve has an enlargement 28 located between a washer 31 and a guide sleeve 26, the latter having a surface 30 which co-operates with surface 29 of sleeve 22 to preclude leakage when the valve is closed. The head 19 of stem 18 has a surface 33 which abuts surface 32 of washer 31 when the valve is open. Chamber 36 is evacuated via port 34 to remove leakage fluid. The head 19 is pinned to the holder 10 of valve plates 4, the latter being biased apart by spring 5 acting through centred discs 6. The valve plates are retained by strut 35 and the assembly is prevented from rotating by pins (14) engaging grooves (16) in holder 10. The valve has an indicator 37 which may include contacts for remote warning lamps. A gland may be additionally employed. An adjustable stop 11 causes the reaction on sleeve 22 that brings surfaces 29, 30 together.
Patent GB-1166641-A (GB)
Title: Improvements in or relating to Shoe Manufacture
Inventor: COULSON RONALD GEOFFREY
IPC: A43D11/12
Filed: 1966-05-11
Abstract: 1,166,641. Boots &c. SHOE & ALLIED TRADES RESEARCH ASSOCIATION. 19 June, 1967 [11 May, 1966], No. 20932/66. Addition to 1,102,695. Heading A3B. The machine for preforming shoe upper blanks of the parent Specification is provided with a supporting platform 14 for the shoe upper blank which is movable between a loading position as shown, in which the blank is located on the platform 14 with its edges projecting beyond the platform 14, and a supply position in which the platform 14 lies in the cut-outs in the clamping plates 2, 3 with the projecting edges of the blank between the plates 2, 3. The blank is positioned on the platform 14 by a matrix 24, 25 which is moved upwardly into its operative position by a piston and cylinder 26 and the blank is held in this position by clamping arms 15. The platform 14 which is mounted on a carriage 17 which runs on guide strips 18, then moves to its supply position where the edges of the blank are gripped between the clamping plates 2, 3. The clamps 15 are then released, the carriage 14 returns to its loading position and the blank is shaped by the mould 4 as described in the parent Specification. The mould 4 may be tilted about its axis 8a by a piston and cylinder as described in the parent Specification or may be tilted by the action of a cam follower 11 on the mould support 8, 12 engaging a cam surface 13 as the mould 14 is raised, the mould being returned to its original position by a spring loaded plunger 5.
Patent GB-843492-A (GB)
Title: Improvements in and relating to valves comprising a plurality of individual valves
Inventor: NIEDERMAYER EGON
IPC: F04B39/10
Filed: 1956-07-06
Abstract: 843,492. Valves. SATZGER, E. July 6, 1956, No. 20974/56. Class 135. Non-return valves of the type employed as suction and delivery valves in piston compressors comprise a plurality of small circular plates 11 controlling a plurality of suction passages 6 or discharge passages 7 in a seating plate 5. The plates 11 are provided of dishshape the central projecting part of which is loosely located by bosses or recesses 14, 15 in backing plates 12, 13 respectively. The suction valves are preferably arranged in the centre of the seating plate 5 and the discharge valves towards the outside. Separate seating plates may be provided for the suction and discharge valves and each such plate may act as the backing plate for the other. The shape and dimensions of the valves are stated to be such that the increase in velocity on opening effects a reduction in pressure on the valve members to cushion the impact on the back plate.
Patent GB-1043196-A (GB)
Title: Gear couplings
Inventor: ALLEN LESLIE
IPC: B21B35/14
Filed: 1962-05-31
Abstract: 1,043,196. Universal joints. DAVY & UNITED ENGINEERING CO. Ltd. Aug. 30, 1963 [May 31, 1962], No. 21007/62. Heading F2U. A shaft coupling comprises internal teeth 15 on a sleeve 14 fast with a shaft 13 and meshing external teeth 16 formed on a shaft 12; the tips 30, root circle surface and flanks of each tooth 16 being cambered and having a radius of camber equal to half the radius of the pitch circle at mid-flank. The diameter of the tooth tips at mid-flank is increased above that of standard involute teeth having the same pitch circle by the reciprocal of the diametral pitch in inches, and the dedendum is correspondingly decreased so that the tooth depth remains the standard value. A thrust button 20 carried by the sleeve 14 is engaged by a thrust ball 17 carried in a recess in a collar 18 which is slidably mounted in the shaft 12 and is biased towards the button 20 by a spring 22.
Patent GB-1465793-A (GB)
Title: Lens wiper system
IPC: B60S1/38
Filed: 1974-05-13
Abstract: 1465793 Vehicle head-lamp wipers CIBIE PROJECTEURS 13 May 1974 [16 May 1973]  21069/74 Heading A4F A wiper system for cleaning substantially the whole of the lens 3 of a vehicle head-lamp comprises a driving means, e.g. motor M and pivot 4, for transmitting a reciprocating rotary movement to a wiper assembly comprising two wiper elements 1, 2 joined end to end by a joint 5 which allows limited pivoting movement (α) therebetween such that, as shown, the wiper assembly adopts different shapes at the limits of its movement. More than two wiper elements may be used. As shown the driving means is attached to one end of the wiper assembly, but may alternatively be connected to the joint 5. Steps 6 may be provided to ensure that the angle α is reversed at the limits of movement of the wiper assembly should the joint 5 be or become tight.
Patent GB-267402-A (GB)
Title: Folding corner wardrobe
IPC: A47B81/00
Filed: 1926-08-27
Abstract: 267,402. Toner, P. J., and Donald, C. L. Aug. 27, 1926. Folding wardrobes.-A corner wardrobe has two sides 2, 3 hinged together and provided with upper and lower rails 11, 13 which support a completely detachable top 16 and shelf 14 respectively. Thumb-nuts, hooks and eyes or other quickly detachable fastenings are used to secure the top while the shelf is positioned by dowels. A door or curtain, not shown, may be used to close the front of the device.
Patent GB-987408-A (GB)
Title: Improvements in or relating to industrial furnaces
IPC: F27D1/02
Filed: 1961-06-12
Abstract: 987,408. Furnace roofs. J. W. LUDOWICI. June 12, 1961 [June. 10, 1960], No. 21201/61. Heading F4B. A furnace arched roof 1 is supported independently of the side walls 2 by disposing the abutments 3 in a separate external support structure spaced laterally from said side walls. The invention may be applied to a roof of part-spherical form supported at four corners in a rigid steel framework, Figs. 2 and 3 (not shown). A tongue and groove seal may be formed between the roof and the walls, Fig. 4 (not shown).
Patent GB-1189121-A (GB)
Title: Metal Mercaptide Polymerization Catalysts for Episulphides
Inventor: WRAGG REGINALD TREVOR
IPC: C08G75/08
Filed: 1966-05-13
Abstract: 1,189,121. Metal mercaptides. DUNLOP CO. Ltd. 10 May, 1967 [13 May, 1966], No. 21239/66. Heading C2C. [Also in Division C3] Novel mercaptides of zinc, cadmium, silver, copper, nickel or lead in which one or more of the valency states of the metal is/are satisfied by the grouping R 5 (R 4 )N-R 1 -S-, wherein R 5  is butyl or a 2- or 3-carbon hydrocarbon group having a mercapto substituent; R 4  is ethyl, butyl, benzyl or hydrogen or wherein R 4  and R 5  jointly form -CH 2 -CH 2 - or -CH 2 -CH 2 -N(CH 2 CH 2 SH)-CH 2 -CH 2 - and R 1  is a hydrocarbon group or hydrocarbon groups joined by a thioether linkage and novel mercaptides of the above metals with 11,2-dimethyl - 2<SP>1 </SP>- diethylamino - 2 - mercaptodiethyl sulphide, 2 - (butyloxy) - ethylmercaptan, 2- (butylthio) ethyl mercaptan, di-(2-mercaptoethyldodecyl) sulphide and di - (2 - mercaptoethyl-butyl) sulphide are prepared by reacting a salt or oxide of the metal with the appropriate organic mercaptan. Other mercaptides described, but not claimed per se, are (HO.CH 2 .CH 2 .S) 2 Zn, the mercaptide of zinc with ethane dithiol or bis-(beta-mercaptoisopropyl) sulphide, and the mercaptides of zinc and cadmium with propane-1,2,3-trithiol.
Patent GB-1241015-A (GB)
Title: Improvements in or relating to glass furnaces
Inventor: BUSBY TERENCE STANLEY
IPC: C03B5/425
Filed: 1968-05-04
Abstract: 1,241,015. Glass melting furnaces. NATIONAL RESEARCH DEVELOPMENT CORP. 2 May, 1969 [4 May, 1968], No. 21242/68. Heading F4B. In a glass melting furnace the side walls 1 of the tank are chamfered at 2 in the region where the surface 3 of the molten glass 4 contacts the walls. The chamfer, which is shown to be of plane form and is said to preclude the surface 3 from forming a meniscus at the point of contact, may alternatively be convex (Fig. 6, not shown) or concave (Fig. 7, not shown). The angle of inclination of the chamfer to the horizontal at the point where the surface 3 contacts each side wall lies within the range 30 to 50 degrees.
Patent GB-1139203-A (GB)
Title: Miniature vacuum relay
IPC: H01H25/04
Filed: 1966-05-13
Abstract: 1,139,203. Vacuum switches. JENNINGS RADIO MFG. CORP. 13 May, 1966 [19 May, 1965], No. 21296/66. Addition to 1,088,962. Heading H1N. A vacuum switch similar to that of Specification 1,095,484, has the intermediate contact member (29) offset and co-operating with a straight contact rod (18). The end tube (12) on the end cap (6) is encapsulated in a resilient body in a casing (16).