baber/WOPTO huggingface dataset:
Patent GB-1496210-A (GB)
Title: Cassette for an endless film
IPC: G03B21/32
Filed: 1975-05-22
Abstract: 1496210 Film-cassettes AGFA-GEVAERT AG 22 May 1975 [25 June 1974] 22169/75 Heading B8M A cassette for an endless roll 6 of film 7 comprises a compartment 11 for accommodating the roll of film; an exposure aperture 10 which is provided to expose the film 7 to a camera lens 9 and which is located such that a plane defined by a perpendicular line to the centre of the aperture 10 and a line extending in the direction of travel of the film 7 past the aperture 10 and through the centre of the aperture 10 is parallel to the central plane of the roll 6 and offset therefrom by a distance substantially equal to the width of the film 7, and substantially spiral guides 14, 15, the guide 14 being curved and descending, in relation to the compartment 11, towards the aperture 10 while the guide 15 being curved and descending up to a point C and then ascending, in relation to the compartment 11, over a distance C-B whereby the film 7 is unwound from the outer convolution of the roll 6, guided in a descending manner along the guide 14, transported past the aperture 10, and then guided in an ascending manner along guide 15 to be stored adjacent the inner peripheral region of the roll 6. The roll 6 is supported on supports 12 of the compartment 11. The drive for the film is provided by the claw (not shown) of the camera (not shown). The cassette is made of light proof black polystyrene material and is injection moulded. It comprises top and bottom parts 1 and 2, and a film contact plate 3. A spring 16 is integrally injection moulded with the part 2 to provide for displaceable mounting of the plate 3 thereby ensuring that the film 7 lies flat against the aperture 10. The two parts are snapped together or are ultrasonically welded together. The image aperture 10 is located at a lower level than the central plane of the roll 6 and the guide 14 constitutes a right-handed spiral and the guide 15 a left-handed spiral. If the aperture 10 is located above the central plane of the roll 6 then the spiral paths will be reversed.
Patent GB-517471-A (GB)
Title: Improved drive for machines in which a flywheel is repeatedly accelerated through engageable and disengageable couplings
IPC: B30B1/22
Filed: 1938-07-26
Abstract: 517,471. Momentum power storing apparatus ; flywheels. GEORG, O. July 26, 1938, No. 22240. Convention date, July 28. 1937. [Classes 10 and 122 (i)] [Also in Groups V and XXII] In a machine comprising a flywheel 1 which can be coupled or uncoupled from a rotating driving shaft, the flywheel is provided with displaceable masses so that its moment of inertia varies during its acceleration. Fig. 1 shows a screw press in which a bevel wheel 8 on the driving shaft can be moved into engagement with a bevel flywheel 7 to rotate a spindle 1 journalled in a pedestal 4, a press slide 6 being moved upwardly by the engagement of a nut 5 on the slide with a threaded portion of the spindle 1. Two heavy weights 12, 13, suspended from pins 10, 11 on the flywheel 7 and attached by links 14, 15 to a slidable sleeve 16 on the spindle 1 are held adjacent the spindle when the pulley 8 and flywheel 7 are first engaged by the engagement of the sleeve 16 with nuts 19, 20 on rods 17, 18 attached to the slide 6. As the slide 6 moves upwards the weights 12, 13 fly outwards and the momentum of the flywheel increases to a maximum before impact occurs. After impact the wheel 7 stops and the weights drop, the recoil in some cases being sufficient to produce return movement of the slide. If necessary the return movement may be completed by engagement of a bevel wheel 9 on the driving shaft with the flywheel 7. The driving shaft may be slightly inclined and the pulley 9 may be 10 to 20 per cent. smaller than the pulley 8 so that the centrifugal force is insufficient to raise the weights 12, 13 during the return movement. In another construction the flywheel 7 carries pivoted weights which are held by springs so as to surround closely the hub of the flywheel until the speed of the flywheel reaches about 90 per cent. of its maximum.
Patent GB-366046-A (GB)
Title: Improvements in or relating to cigarette-making machines
IPC: A24C5/39
Filed: 1930-07-24
Abstract: 366,046. Cigarette-making machines. EBCO MACHINE CORPORATION, 345, West 40th Street, New York, U.S.A.- (Assignees of Karich, R. R. ; 8519, 80th Street, Jamaica, Long Island, New York, U.S.A.) July 24, 1930, No. 22380. Convention date, July 27, 1929. Void [Published under Sect. 91 of the Acts]. [Class 130.] To impart to tobacco movement in the direction of motion of a cigarette paper, deflecting means are arranged in a shoot which delivers tobacco discharged from the carding mechanism on to the web of cigarette paper. Carded tobacco is removed from a drum 20 by a picker roller 31 and a comb 133 and delivered into a shoot 32 in which curved fins 40, 41 secured to the walls 36, 37 propel the tobacco in the direction of travel of the cigarette paper 33 which is supported by a plate 38. The walls of the shoot are removable and the shoot is positioned in plates 43, 44. Fins may be formed on the plates 43, 44 as continuations of the fins 40, 41. In a modified construction, Fig. 9, rotating screws 63, 64 impart the necessary movement to the issuing tobacco. In another construction, the screws are replaced by belts moving parallel to the direction of travel of the paper ; the faces of the belts converge downwardly and the belts embrace pulleys mounted on relatively inclined shafts.
Patent GB-1202656-A (GB)
Title: Apparatus for playing a game
Inventor: KINBERG BENJAMIN
IPC: A63F9/00
Filed: 1969-05-02
Abstract: 1,202,656. Board game. B. KINBERG. 2 May, 1969 [30 Sept., 1968], No. 22475/69. Heading A6H. A game is played using a game board as shown in fig. I and a mechanical device as shown in fig. 2. The playing board has a central well or pocket 18 and a number of secondary wells or pockets 16 and the mechanical device has a pair of wheels 26 which are driven via a common spindle by means of a "friction motor". The players take it in turns to energise the device and place it in the well 18 from which it spins and crawls into one of the secondary wells 16. Points are scored according to indicia at the bottom of the wells. The game can be played using a score board which consists of rows of coloured holes along which the players move pegs. In this case the above indicia will be colours and the pegs are moved according to rules layed down in the specification.
Patent GB-796356-A (GB)
Title: Reduction of aromatic nitrogen compounds
IPC: C07C241/02
Filed: 1955-08-05
Abstract: A process for the reduction of a reducible aromatic nitrogen compound containing nitrogen as a nuclear substituent of a benzene nucleus at a higher stage of oxidation than the hydrazo stage, with a reducing sugar and caustic alkali, comprises carrying out the reduction in a reaction medium in which a naphthoquinoid reduction promoter has been incorporated.  The reduction is preferably carried out in a medium containing a water-miscible organic solvent.  The term naphthoquinoid reduction promoter includes all the reduction promoters specified in Specifications 701,128, 716,418, 730,748, 776,716 and 780,631, 780,632, which describe reductions using metal alcoholates.  The process is particularly applicable to the reduction of aromatic nitrogen compounds containing labile halogen substituents. Specified solvents are monohydric alcohols containing not more than six carbon atoms.  Specified reducing sugars are glycol aldehyde, glycerol aldehyde, erythrose, arabinose, xylose, fructose, invert sugar, galactose and dextrose.  Specified reducible aromatic nitrogen compounds are nitrobenzene, 2- or 3- or 4-nitrochlorobenzene, 2- or 3- or 4-nitrotoluene, 2- or 4-nitroanisole, 2-or 4-nitrobenzoic acid, 2-nitrobenzene-sulphonic acid, 2 : 5-dimethyl-nitrobenzene, 2- or 4-nitrophenetole, 2 : 5-dichloronitrobenzene, 2 : 21- or 3 : 31-azoxytoluene, 2 : 21-azoxyanisole, 2 : 21 or 3 : 31-dichloro-azoxybenzene, 4 : 41-azoxydibenzoic acid, azobenzene, 2 : 21-azotoluene, 2 : 21-azoanisole and 2 : 21-dichloroazobenzene.  In examples: (1) 2-chloronitrobenzene was reduced in aqueous medium with dextrine and sodium hydroxide in the presence of 2 : 3-dichloro-1 : 4-naphthoquinone to give a mixture of 2 : 21-dichloro-azoxy- and -azo-benzenes; (2) 2 : 21-dichloroazoxybenzene was reduced in methanol with dextrose and sodium hydroxide in the presence of 2 : 3-dichloro-1 : 4-naphthoquinone to give 2 : 21-dichlorohydrazobenzene and some 2-chloroaniline; (3) as in (2) azoxybenzene was reduced to hydrazobenzene; (4) as in (2) 2 : 21-dimethoxyazobenzene was reduced to 2 : 21-dimethoxyhydrazobenzene; (5) as in (2) 2 : 21-dichloroazoxybenzene was reduced to 2 : 21 - dichlorohydrazobenzene; (6) 2 - chloronitrobenzene was reacted with methanol and sodium hydroxide to give 2-methoxynitrobenzene; to the reaction mixture thus obtained were added further sodium hydroxide and methanol and 2 : 3 - dichloro - 1 : 4 - naphthoquinone and the mixture was reacted further to form 2 : 21-dimethoxyazobenzene and 2 : 21-dimethoxyazoxybenzene, dextrose being then added to complete the reduction to 2 : 21-dimethoxyhydrazobenzene which was rearranged with acid to give 3 : 3-dimethoxybenzidine hydrochloride.  In Examples (1), (2) and (3) the process was also carried out in the absence of the naphthoquinoid reduction promoter for purposes of comparison.
Patent GB-398824-A (GB)
Title: Improvements in electric discharge lamps
IPC: H05B41/232
Filed: 1931-12-19
Abstract: 398,824. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Spanner, H. J. ; 117, Chausseestrasse, Berlin.) Dec. 19, 1931, No. 22696/33. Convention date, Dec. 20, 1930. Divided on 398,799, [Group XL.] [Class 38 (iv).] A source of light comprises two lamps of the type described in Specification 397,162, [Group XL], provided with cathodes of the type described in Specification 356,234, [Group XL], connected in parallel, and the starting voltage of one lamp is greater than both starting and normal running potentials of the other. If one lamp has a filling of argon in addition to metal vapour, the other lamp may be given a higher starting potential by adding iodine, neon or helium to the filling. The lamps may be mounted in a common reflector. According to the Specification as open to inspection under Sect. 91, each lamp, instead of being of the type set forth above has the following characteristics: (1) The electrodes are oxide coated and are preferably heated by the discharge only; (2) the filling consists of a mixture of rare gas with mercury and possibly other metal vapour; (3) the operating temperature of the lamp is greatly above atmospheric, and the device will start without auxiliary means on a supply circuit of about 220 volts. This subject-matter does not appear in the Specification as accepted.
Patent GB-688657-A (GB)
Title: Improvements in sealing means for rotary regenerative air preheaters
IPC: F28D19/04
Filed: 1950-09-18
Abstract: 688,657. Rotary regenerative heat-exchangers. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Sept. 18, 1950 [Oct. 11, 1949], No. 22846/50. Class 64 (i) In a rotary-drum type regenerator, channels 27 are formed at each axially spaced face of the rotor and sealing shoes are slidably mounted in the channels and spring-urged into sealing contact with end plate surfaces 21 of the regenerator casing, the sealing shoes on opposite faces of the rotor being yieldably interconnected. The channels 27 may be formed on the edges of the rotor shell to receive circumferential seals and/or on the edges of radial partitions, which divide the rotor into segments, to receive radial seals. The circumferential seals may be formed at the outer periphery of the rotor (as shown) and at the inner periphery of the rotor adjacent the rotor post. In the form shown, circumferential sealing shoes 26 at the top and bottom edges of the rotor are mechanically interconnected by rods 30 extending through guide lugs 31 on the rotor shell 10, each rod 30 being fixed by a pin 33 and lug 34 to a shoe 26 on the lower seal and being resiliently connected to a corresponding shoe on the upper seal by means of a coil spring 36 and nuts 37, 38 bearing respectively against the upper side of a lug 35 on the sealing shoe and against the lower end of the spring 36. Other tension springs 40, 41 on the rods 30 are set to bias apart the respective rows of sealing shoes at the top and bottom ends of the rotor to maintain a sealing contact or a running clearance C with the end plates 21 of the casing structure. Radial sealing shoes 50 are likewise resiliently mounted upon guide rods 51 extending through lugs formed on the radial partitions of the rotor. In a modification (Figs. 5 and 7, not shown) the spring 40 is omitted and the radial sealing shoes are not provided with their own tension rods but are pivotally connected to lugs on the circumferential seals so that the radial and circumferential seals operate in unison.
Patent GB-782951-A (GB)
Title: Improvements in or relating to valve structures
IPC: F24F3/06
Filed: 1955-08-09
Abstract: 782,951. Ventilating buildings. CARRIER ENGINEERING CO., Ltd. Aug. 9, 1955 [Dec. 10, 1954], No. 22973/55. Class 137 [Also in Group XXIX] An air conditioning system for a multiroomed building comprises sources 3 and 4 of hot and cold liquid, such as water; under winter conditions hot-water valves 5, 6 will be opened and cold-water valves 7, 8 closed, the reverse obtaining under summer conditions. A pump 9 supplies the water to units 10 and 11 in separate rooms 12 and 13 respectively, which units are housed in casings or furred in and include valves 2 (see also Group XXIX) coils 14, and plenum chambers 15 with nozzles 16, the chambers being connected to a central air conditioning station, not shown. The nozzles 16 discharge air into the rooms and induce air into the unit through louvres 17, which air passes through the coils 14 and after mixing with the air discharged within the unit re-enters the room via the louvres 18. Under winter operating conditions the water flows through the valves 2 to the coils 14 while under summer conditions the water flow is reversed by valves 21, 22, 24 and 25, valves 21 and 25 being in cross-over lines 19 and 20. The various sets of coils 14 and valves 2 are in parallel with each other; the valves 2 may be actuated manually or by elements responsive to the temperature of the rooms to be heated. The system may be arranged to provide heating only. Specification 641,712 is referred to.
Patent GB-822190-A (GB)
Title: Pressure regulating valve
IPC: A61M16/20
Filed: 1956-07-25
Abstract: 822,190. Valves. BENDIX AVIATION CORPORATION. July 25, 1956 [July 25, 1955], No. 23033/56. Class 135. A valve for regulating the delivery pressure of a gas, such as oxygen for inhalation, comprises a valve body 19 with a washer 25 co-operating with a seat 17 for controlling the supply of the gas from an inlet 12 to an outlet chamber 33. The pressure in the chamber 33 acts on a diaphragm 40 to close the valve against the pressure of a spring 46 through a pivoted lever 38 and rod 30. The valve body 19 is in the form of a piston sliding with clearance in a bore 20 to provide " capillary " flow therethrough. A pressure drop is thereby obtained between the outlet chamber 33 and the chamber 24 above the valve body which is proportional to the flow of the gas and which acts to increase the valve opening to compensate for increased flow.
Patent GB-1385424-A (GB)
Title: Process for the preparation of a monoolefin polymerisation  catalyst
IPC: C08F10/00
Filed: 1972-05-17
Abstract: 1385424 Preparation of monoolefin polymerization catalysts GULF RESEARCH & DEVELOPMENT CO 17 May 1972 [1 June 1971] 23075/72 Heading C3P Monoolefin polymerization catalysts are prepared by (a) introducing into a first stirred contact zone solid metal halide particles wherein the metal is selected from Groups IVb, Vb and VIb of the Periodic Table (as defined in the Handbook of Chemistry and Physics), the metal halide being dispersed in an inert hydrocarbon solvent, (b) passing to said contact zone a liquid additive which chelates metals and which is selected from polyamines, aminoethers, hydroxyethers and aminoalcohols (in which not more than 3 aliphatic carbon atoms separate the amino and alcohol groups), (c) passing the resulting admixture successively to at least a second stirred contact zone, (d) passing the resultant composition to a polymerizing zone and (e) passing to any of the stirred contact zones or to the polymerizing zone an organometallic compound of a metal of Groups IIa, IIb or IIIa of said Periodic Table and which has a valency of at least two. The metal halide, hydrocarbon and liquid additive may be contacted in a contactor having 2 to 25 contact zones and then be passed to second contactor of 2 to 25 contact zones where they contact the organometallic compound. In the examples TiCl 3  in heptane is contacted with tetramethylenediamine and then with triethylaluminium and is used to polymerize propylene.
Patent GB-443345-A (GB)
Title: Improved anchorage for anglers' rods
IPC: A01K97/10
Filed: 1935-08-17
Abstract: 443,345. Fastenings. CUMMING, V. J., 8, Grosvenor Terrace, Kelvinside, Glasgow. Aug. 17, 1935, No. 23155. [Class 44] [See alsc Group VI] An anchorage for a fishing roc resting on the gunwale of a boat comprises a spring clip 7 which is pivoted at 5 to a bracket 1 so as tc swing through 180‹. The clip jaws are faced with rubber and the ends of the jaws are fitted with roller; 8 to facilitate the entry of the rod butt. The bracket is secured tc the gunwale by a screw clamp.
Patent GB-1468756-A (GB)
Title: Tyre for a vehicle
IPC: B60C9/02
Filed: 1974-05-23
Abstract: 1468756 Carcass reinforcements for pneumatic tyres PNEUMATIQUES CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBER-COLOMBES 23 May 1974 [23 May 1973] 23195/74 Heading B7C A pneumatic tyre is reinforced by two carcass plies each of which extends from a bead region into the tread region. The plies may overlap in the tread region (Figs. 4/6) to form a tread reinforcement, or edges of the plies may be axially spaced, with a separate tread reinforcement 12 overlapping the spaced ply edges. Each carcass ply is formed from a single cable or a small number of cables with the or each cable being arranged such that a portion extends from the bead region to an apex at the radially outer edge of the ply and returns to the bead region. The portion may form a loop (Fig. 2) or a substantially U configuration (Fig. 5). The cable(s) in each bead region reinforce the bead so that the conventional bead wire may be omitted. The tyre of Fig. 5 may also include a conventional tread reinforcing belt.
Patent GB-1246417-A (GB)
Title: Safety containers for inflammable liquids
Inventor: CROSSLAND BRIAN
IPC: B65D90/22
Filed: 1969-05-07
Abstract: 1,246,417. Portable containers. HEADWOOD Ltd., and STRUCTURAL SYSTEMS & COMPONENTS Ltd. 7 May, 1970 [7 May, 1969], No. 23254/69. Heading B8D. [Also in Division A5] A safety container for inflammable liquids comprises receptacle 11 and fire resistant diaphragm 16 normally resiliently held above the normal liquid level 27 but movable to a position in which at least part of the diaphragm is below it. Diaphragm 16, retained by spring 17 in the centre of the container, consists of upper perforated sheet steel layer 18 bonded to lower fire resistant wire gauze layer 20. Lid 24, pivoted about pin 25, normally lines closed under its own weight. The lid opening mechanism comprises lever 28 pivoted on opposite pins 29 and connected by link 31 to pivot 32 on the lid, and handle 35 for both opening and carrying the container also pivoted at 29 which in the closed position abuts stops 34 on arms 33 of the lever. Handle 35 is moved downwards to open the container and into the vertical position to carry it. To obtain liquid, e.g. petrol, paraffin or xylol, from the container the operator lifts lid 24 with one hand by means of 35, pressing the diaphragm down below liquid level with the other. Any excess liquid remaining above the diaphragm after use drains back through perforations 19.
Patent GB-1022010-A (GB)
Title: Process for the production of new substituted malonic acid monohydrazides
IPC: A61K31/185
Filed: 1964-06-05
Abstract: The invention comprises compounds of the general formula <FORM:1022010/C2/1> wherein R1 is a hydrocarbon radical of up to 8C and R2 is H or halogen, their salts with organic or inorganic bases and the preparation thereof (a) by heating in an aqueous or aqueous-organic medium a compound of the general formula <FORM:1022010/C2/2> with an inorganic base, forming the acid and optionally preparing the base from the acid; (b) by hydrolysing or hydrogenolysing an alkyl or benzyl ester of compounds I; and (c) reacting an alkali metal salt of compound II with an aqueous hypohalogenite solution and reducing the compound formed of the general formula <FORM:1022010/C2/3> until the halogen atom in the alpha-position has been removed or hydrogenating the compound IV in the presence of an acid binding substance.  n-Butyl malonic acid ethyl ester-N,N-diphenyl-hydrazide is prepared by reacting n-butyl malonic acid monoethyl ester and hydrazobenzene in the presence of dicyclohexylcarbodiimide.  Pharmaceutical compositions comprise compounds I and a pharmaceutical carrier.  The compositions, which show antipyretic and antiphlogistic acticity, may be formulated as tablets, capsules, suppositories or solutions for injection.
Patent GB-643780-A (GB)
Title: Improvements in or relating to centrifugal separators, particularly centrifugal cream separators
IPC: B04B1/12
Filed: 1947-06-16
Abstract: 643,780. Centrifugal cream separators. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. June 16, 1947, No. 23385/49. Convention date, June 24, 1946. Divided out of 643,716. [Class 23] [Also in Group XXIX] The bowl of a centrifugal separator comprises two parts 19, 25 spaced apart at the maximum periphery by circumferentially arranged spacer elements 30 to provide a substantially continuous discharge slot 32 for washing liquid, and the slot is closed by a resilient ring 35 expansible by the centrifugal force. The spacer elements are projections on the part 25. The ring is of circular cross-section, and is provided with projections 37 which assist in the retraction of the ring. The ring is positioned by recesses in lugs 23 depending from the part 19.
Patent GB-1115565-A (GB)
Title: Calcium pyroniobate crystals
Inventor: GRAVES PETER WILLIAM
IPC: C01G33/00
Filed: 1967-05-19
Abstract: Calcium pyroniobate crystals having optically flat surfaces in the (100) plane are obtained by withdrawing a seed crystal from a melt in the direction of its (100) plane.  The pyroniobate may be prepared by mixing molar proportions of CaCO3 and Nb2O5, calcining, if desired, at 1250 DEG  C., pressing at 5000 kg/square <PICT:1115565/C1/1> centimeter and firing at 1250 DEG  C. for 24 hours.  A seed crystal may be obtained by cleaving a boule grown on an iridium wire and shaping by air abrasion and machining, and may then be attached to a rotary alumina pulling rod 21 with a Pd/Rh wire.  During pulling argon is passed through silica envelope 10.  The melt 2 is contained in Ir crucible 1 surrounded by alumina powder 4 in alumina crucible 5.  An alumina annulus 6 supports alumina heat shields 7.  A thermocouple 13 indicates the temperature, which may be produced by the use of induction coil 15.  The crystals are in the form of ribbons and may show no growth steps in the principal surfaces over distances up to 4 cms.