baber/WOPTO huggingface dataset:
Patent GB-1121476-A (GB)
Title: Apparatus for controlling an operating programme
IPC: H01H19/58
Filed: 1965-12-01
Abstract: 1,121,476. Washing machines. GEBRUDER SCHARPF KOMM. GES. MASCHINENFABRIK IN STUTTGARTZUFFENHAUSEN. 1 Dec., 1965 [23 Dec., 1964], No. 51078/65. Heading D1A. [Also in Division H1] A sequence switch for washing machines comprises a cam shaft 30 operated by a stepping motor 34 to actuate a plurality of switches e.g. 11, 12, 21, 22 by the cooperation of grooved cam tracks of face cam 32 with cam followers 13, 14, 23, 24 and also to actuate a wiper or wipers 44, 46 which cooperate with contacts on a printed circuit plate 40 to control the lower power control units of the machines. Wiper 46 cooperates with an annular contact track and wiper 44 with a plurality of spaced contacts. The control elements e.g. relay, rectifier, transformer, transistors, resistors, and capacitors may be plugged as a unit into the printed circuit plate 40 or may be mounted individually thereon.
Patent GB-1186389-A (GB)
Title: A Process for the Continuous Extraction of Bauxite with Sodium Aluminate Liquor in a Digester Tube
Inventor: TUSCHE KLAUS JOACHIM
IPC: C01F7/0626
Filed: 1967-11-10
Abstract: 1,186,389. Extraction of bauxite. VEREINIGTE ALUMINIUM-WERKE A.G. 10 Nov., 1967 [6 May, 1967], No. 51359/67. Heading C1A. A process for the continuous extraction of bauxite with a caustic solution of sodium aluminate comprises conducting a suspension of bauxite in the solution through a tube of substantially constant cross-section at a velocity of 0À5 to 7 m./sec., preferably 2 to 5 m./sec., at a volumetric throughput rate of 0À01 to 0À5 cub. m./metric ton of alumina per day and heat - ing the suspension to a temperature at which digestion occurs so that digestion is substantially complete when the suspension leaves the tube. The heating is preferably carried out in stages in an apparatus described in Specification 1,186,390, the first stage being heated by vapour from a decompression plant, the second by contact with a jacket containing digested suspension and the third by fresh heat by means of steam, organic heat carrier or a salt. Throughput of the process is preferably 10 to 160 cub. m./hr. of suspension at a temperature of 200 to 300 C.
Patent GB-1486328-A (GB)
Title: Shipping bag
IPC: B31B39/00
Filed: 1974-11-28
Abstract: 1486328 Cushioned bag PACKAGING INDUSTRIES Inc 28 Nov 1974 [29 Nov 1973 23 May 1974] 51522/74 Heading B8K A cushioned bag Fig. 3B has two opposed side walls closed upon three sides and means permitting closure of the fourth side the walls each having an outer layer 21 formed from a sheet material, e.g. kraft paper, and an inner layer 20 of resilient material, e.g. foamed polyethylene, coextensive with substantially the whole of the inner surface of the outer layer, including the seams which are formed by the application of contoured heated sealing members 51, Fig. 6. In one method of making the bag Fig. 1, a paper web 21 and foam web 20 are united by sprayed-on adhesive 25 or ribbons of adhesive at their edges as they pass between rollers 23, 24. The laminate so formed is folded and sealed transversely, e.g. by heated rollers, at spaced intervals, cuts then being made through the seals 31 to form individual bags. The web 21 may be wider than the web 20 to form a flap at one or both sides of the bag mouth or, as shown, the webs are of equal width but folded non-centrally to form a cushioned flap 35<SP>1</SP>, Fig. 3B. A strip of adhesive 27, Fig. 1, may be applied to one bag wall and covered by a peelable backing 29 for use in closing the flap 35<SP>1</SP>. Alternatively the bag mouth is closed by heat-sealing, stapling, or gluing. The sealed edges 31 may be folded back and adhered to the adjacent bag wall. A strip of hot melt adhesive may be applied to the webs before folding in the areas where the seals 31 are to be made. The foam layer may be stretched before laminating to assist in holding open the mouth of the completed bag. The edges of the web 21 may be folded back to stiffen the bag mouth. In a second method Fig. 6, the bag is formed from two foam webs 40, 41 and two paper webs 43, 44 heat sealed at one edge and then transversely prior to severing.
Patent GB-1479590-A (GB)
Title: Dissipation of electrostatic charges from insulating materials
IPC: B29C48/48
Filed: 1974-11-14
Abstract: 1479590 Polytetrafluoroethylene tube SUPERFLEXIT Ltd 14 Nov 1974 [7 Nov 1973 12 Dec 1973] 51633/73 and 57605/73 Addition to 1320336 Heading F2P [Also in Division B5] An extruded polytetrafluoroethylene tube includes one or more conductive strips extending longitudinally of the tube interior or exterior surface, for the dissipation of electrostatic charges. The tube may be of  internal diameter and 0À040 inch wall thickness and with a single interior conducting strip of which conductivities are stated. The tube is extruded (see Divisions B4-B5) from a unitary tubular preform, compression moulded from p.t.f.e. particles and lubricant together with an insert defining the conductive strip and comprising 3 to 25% by weight of carbon black or iron oxide particles dispersed in a matrix of particles of the p.t.f.e., or polyethylene, or polypropylene, and lubricant. The same lubricant, e.g. white spirit, or naptha, is preferably employed for the insert as for the remainder of the preform and comprises, for the insert 6, to 24% and preferably 16% by weight on the weight of the plastics particles of the matrix. After extrusion, the tube is dried to remove lubricant and then sintered at above 700 F. Drying may be at room temperature for 24 hours, followed by sintering at 740 F. for 2 hours. Alternatively, the extrusion can be passed continuously through a drying, and then through a sintering run respectively at 320 and at 800 F. or above.
Patent GB-1448561-A (GB)
Title: Electric switch
IPC: H01H23/02
Filed: 1972-11-09
Abstract: 1448561 Mechanical switches BONNELLA SWITCHES Ltd 1 Nov 1973 [9 Nov 1972] 51676/72 Heading H1N In a rocker actuated switch the rocker 22, Fig. 1, has a pair of operating arms 24 spaced apart in the direction of the pivot axis 23 and together adapted to operate and engage the switching mechanism such as a contact carrying slider 37 through integral extensions 24A. The space between the arms 24 is provided for the mounting of an indicator lamp 42 attached to terminals 43, 44. The contact carrying slider 37 carries at least one spring biased contact 40 slidable over fixed contact studs 32, 33, 34 and insulating stud heads 35, 36. The slider 37 has projections 41 engageable under the load of the spring bias against detents 16 in the base 14 of the rocker housing 12 through which the extensions 24A project. The pivot projections 23 for the rocker 22 have sloping faces (25), Fig. 2 (not shown), for resilient insertion into apertures (13) in the casing 12. The contact housing 30 is attached to the rocker housing 12 by projections engaged in apertures of resilient lugs (17) of the housing 12. In a modification the head 21 of the rocker 22 may be removable to permit access to the lamp 42 and has resilient projections engageable in corresponding recesses on the rocker body.
Patent GB-1247848-A (GB)
Title: Door or panel fittings
Inventor: HERBERT KENNETH
IPC: E06B3/02
Filed: 1967-11-15
Abstract: 1,247,848. Door fittings. TONKS (BIRMINGHAM) Ltd. 31 Oct., 1968 [15 Nov., 1967], No. 51921/67. Heading E2X.  Push plates &c for doors comprise cover members 18, 19 on opposite sides of the door 10 slidably mounted on at least one pair of plates 11, 12, 13, 14. Stop members 22, 26 limit movement of the cover plates in each  direction.
Patent GB-1505310-A (GB)
Title: Pile weather strip
IPC: E06B7/22
Filed: 1975-12-22
Abstract: 1505310 Making weather strips by winding SCHLEGEL CORP 22 Dec 1975 [26 Dec 1974] 52334/75 Heading B8G [Also in Division E1] A weather strip comprises a base 11 with filaments 13 attached at each side and extending tangentially in the same direction to form a strip of pile material. The base may be of solid or foamed plastics material and may be a snap fit in a slot 16 in a holder. An upright plastics fin 12 may also be provided. The strip is made by forming rods 11 of plastics material in plane parallel array with or without sheet plastics material 12 joining them, winding mono-filament 13 round these, attaching the filaments to the rods by adhesives or preferably fusion and cutting through the filaments (and fins 12 if present) to form the weather strips. Apparatus for sequential performance of these operations is described.
Patent GB-1432770-A (GB)
Title: Production of magnesium silicates
IPC: C01B33/20
Filed: 1972-11-14
Abstract: 1432770 Magnesium silicates LAPORTE INDUSTRIES Ltd 30 Oct 1973 [14 Nov 1972] 52416/73 Heading C1A A process for the synthesis of a hydrous magnesium silicate having a crystal structure similar to that of hectorite comprises forming a precipitate of silica in aqueous suspension of magnesium carbonate and maintaining the precipitate in the wet state and treating it hydrothermally in the presence of excess Na or Li compound. Synthetic hydrous magnesium silicates having a crystal structure similar to hectorite and having the general formula where a is 4À95-5À7, b is from 0 to 1À05, c is from 0 to <2, a+b+c is from >4 to <8, y is from 0 to <4, z=12-2a-b-c, M is Na<SP>+</SP> or Li<SP>+</SP> and having a Bingham Yield Value, as a 2% dispersion in tap water of 50-250 dyns./ cm.<SP>2</SP> and having a cation exchange capacity of 25-50 m. eq./100 g. are prepared.
Patent GB-1360153-A (GB)
Title: Method of making a metal laminate and said laminate
IPC: B32B5/18
Filed: 1972-11-14
Abstract: 1360153 Polyurethane-coated metal GOODYEAR TIRE & RUBBER CO 14 Nov 1972 [15 Dec 1971] 52499/72 Heading B2E A metal-polyurethane laminate is prepared by cleaning and phosphatising the metal (which is especially a steel plate) to give a phosphate coating thereon, drying it to a water-free surface, applying a coating of either a soybean alkyd paint or a modified linseed alkyd paint to the treated surface, baking at 225-375‹F until dry and applying and solidifying a polyurethane reaction mixture to form a layer, particularly a microcellular layer, over the metal. Phosphatising is effected by means of a phosphoric acid bath containing either zinc or ferrous phosphate together with calcium perchlorate, nitrite or nitrate. The alkyd paint is particularly a short soybean alkyd, i.e. one containing about 33-43% by weight of soybean oil, and may contain pigments such as BaSO 4 , TiO 2 , ZnCrO 4  or amorphous SiO 2 . The polyurethane reaction mixture may be a mixture of an acrylonitrile grafted polypropylene ether diol with a prepolymer of toluene diisocyanate and a monomeric diol or triol. Other isocyanates and polyols are also mentioned. The process of forming the laminates is useful in the production of wheel blanks.
Patent GB-1223673-A (GB)
Title: Improvements in or relating to polyurethane polymer compositions
Inventor: BRENNAN JOHN PETER
IPC: C08G18/12
Filed: 1966-11-23
Abstract: 1,223,673. Polymer solution. J. P. BRENNAN. 23 Feb., 1968 [23 Nov., 1966], No. 52536/66. Heading C3R. A polymer solution comprises (i) an isocyanate-modified polyester containing free OH groups, (ii) an unmodified polyester, (iii) an organic solvent-soluble grade of a polyurethane rubber, (iv) a diisocyanate/polyol reaction product containing free NCO groups and (v) a catalyst for the isocyanate/reactive hydrogencontaining group addition reaction comprising an organic amine, in a solvent system comprising at least two solvents at least one of which is a solvent for the final polymer material and at least one of which is a non-solvent for the final polymer material. Preferably, at least one of the solvents is water miscible and one non- solvent has a lower rate of evaporation than the solvent or solvents for the final polymer. Suitable solvent systems are tetrahydrofuran and methyl ethyl ketone and alternatively dimethylformamide and acetone.
Patent GB-1422035-A (GB)
Title: Stoppering apparatus
IPC: B67B1/00
Filed: 1973-11-14
Abstract: 1422035 Shelf stoppering apparatus PENNWALT CORP 14 Nov 1973 52809/73 Heading B8T [Also in Division F4] Adjustable shelf stoppering apparatus, particularly for vacuum capping bottles in a vacuum drying apparatus comprises vertically disposed plate members C spaced from the sides of the apparatus A and including a plurality of holes at predetermined vertical levels for supporting shelves B1-B11 in equally spaced disposition, sets of pins 36 received in selective holes to define a series of vertical levels to accommodate predetermined bottle sizes, a plurality of shelves B1-B11 including fingers 32 at the edges thereof for resting engagement on the respective pins 36 and means for elevating the lowermost shelf B1 until the caps of bottles on the respective shelves abut against the next shelf thereabove to squeeze the caps into sealing engagement with the bottles. The spacing of the shelves is determined according to the formula where Sn=spacing between shelves for n shelves, T=total distance between ceiling and lowermost shelf, n=total number of active shelves, n i  = number of inactive shelves and t = shelf thickness. The fingers 32 on the respective shelves are shorter in length in descending shelf order so that interference is avoided when the shelves are elevated. The inactive shelves n i  are arranged to rest on an adjacent active shelf, e.g. in the case of a total of 10 shelves, one of which is to be inactive, shelf B2 is rested on lowermost shelf B1 for movement therewith, the remaining shelves being distributed to give 9 equal spaces. The shelves are elevated by lifting rods 30 attached to frame 66 which is raised or lowered by screw jacks.
Patent GB-1428007-A (GB)
Title: Perforating blades and methods for their manufacture
IPC: B23P15/40
Filed: 1973-11-14
Abstract: 1428007 Grinding perforating blades C F MASTERS 14 Nov 1973 [22 Dec 1972] 52943/73 Headings B3D and B3A [Also in Division B4] A method of making perforating blades 12 from steel blade blanks for a knife roll 10 for web perforating apparatus, the knife roll containing a plurality of perforating blades of variable thicknesses, comprises measuring the average thickness of the blade and machining the height of the blade to a predetermined value dependent on the thickness. The blades are secured by clamps 30 to the knife roll and the cutting edges, which have a series of lands 24 and notches 26 co-operate with an anvil 36 to perforate a web 40 moving at the same speed as the periphery of the roll. The blades project so as to strike the anvil and are bent thereby as they move past. The blades are made from cold-rolled, annealed, high-speed steel and are hardened in a vacuum furnace so that scale is not formed. The thickness of the blade is measured at several places and the height of the blade is ground to a value determined by formula given in the Specification. After the height has been ground, the notches are machined. The blade may have a radius which is formed after the height is ground and the notches formed.
Patent GB-1414803-A (GB)
Title: Rotary platform for a cowshed
IPC: A01K1/00
Filed: 1972-11-16
Abstract: 1414803 Milking parlours C D BOYD G A LONG S F LONG and G WICKHAM 16 Nov 1972 [19 Nov 1971] 53041/72 Heading AIM [Also in Division Fl] A drive mechanism for a rotary milking platform 15 comprises a double acting hydraulically or pneumatically operated ram 10, a pawl and ratchet mechanism 20, 21 for converting reciprocations of the ram, into uni-directional rotation of the platform and a circuit, Fig. 3, for supplying the fluid for driving the ram and including a by-pass valve 33 operable to connect together high and low pressure lines 29, 30 to stop the ram. The piston rod 17 of the ram drives the platform through an arm 18 pivoted at one end to the floor 16 and carrying at the other end a spring-loaded pawl 20 which engages in turn a ring of ratchet pine 21 on the underside of the platform. A roller 22 on the arm 18 runs along a track 23 to provide support for the arm. A shaft 24 movable with the rod 17 carries adjustable collars 26 and springs 27, the collars alternaately co-operating with a pivoted lever 28 to cause the reversal of a valve 14 for reversing the direction of the ram. The by-pass valve 33 is operated by a pull-cord 34 encircling the platform. A single pull on the cord is arranged to index the valve a quarter turn and thereby either stop or start the platform. In the event of the platform being obstructed, a pressure relief valve 31 opens to prevent further operation of the ram. Two other embodiments are described, Figs. 4-6 (not shown), the primary difference being in the mechanism for reversing the valve 14 and the ratchet drive between the ram rod and the platform.
Patent GB-1170816-A (GB)
Title: Making N-Alkyl Substituted Amines
IPC: B01J31/02
Filed: 1967-11-22
Abstract: 1,170,816. N-Alkylated amines. GOODYEAR TIRE & RUBBER CO. 22 Nov., 1967 [30 Dec., 1966], No. 53126/67. Heading C2C. A process of producing an N-alkyl substituted amine comprises reacting an amine compound, a nitrocompound or a nitroso compound with an aldehyde or ketone in the presence of hydrogen and of a catalytic system comprising (a) a nickel catalyst, and (b) at least one acid selected from sulphur-free acids and sulphurcontaining acids in which the sulphur is in the form of a radical. In Examples 2-66 N-4-methyl-2- pentyl - N<SP>1</SP> - phenyl - para - phenylenediamine is made by reacting para-aminodiphenylamine with methyl isobutyl ketone in the presence of various catalyst systems. Examples 67-78 describe the use of other reactants, e.g. paminodiphenylamine with 2-octanone, methyl ethyl ketone; aniline with methyl isobutylketone; paraphenylenediamine with 2-octanone; and p-nitrodiphenylamine with methyl ethyl ketone.
Patent GB-1063425-A (GB)
Title: Process for the polymerisation of styrene
IPC: C08F12/08
Filed: 1965-12-15
Abstract: Styrene is polymerized by mixing with water, sodium dodecyl benzene sulphonate and a polymerization catalyst to form an emulsion, the catalyst comprising a mixture of a carbonyl compound of formula RCOR1, where R is alkyl, aryl or alkaryl and R1 is H or R, and a water-soluble free radical generating compound, and maintaining the emulsion at 15-100 DEG  C. until at least 45% of the styrene has polymerized. The catalyst may be a mixture of (A) benzaldehyde or acetone and (B) sodium or potassium persulphate or hydrogen peroxide. The polystyrene may be recovered from the emulsion by coagulation with calcium chloride solution.
Patent GB-1186752-A (GB)
Title: Improvements in or relating to Optical Apparatus
IPC: G03B21/30
Filed: 1967-03-17
Abstract: 1,186,752. Projection apparatus. ELCO CORP. March 17, 1967 [March 17, 1966], No.53356/69. Divided out of 1,186,751. Heading G2J. A film-strip projector may be used to project images either on to screen 61 of a collapsible screen unit 36 attached to the projector, or on to a distant screen when an adapter 200 comprising an inclined mirror 910 is placed over the projection lens, unit 36 being pivoted to one side for this purpose.
Patent GB-1284303-A (GB)
Title: Improvements in and relating to the manufacture of fibres consisting wholly or partly of acrylic polymers
Inventor: KURIOKA SHIYUNICHIRO
IPC: D01F6/18
Filed: 1969-11-04
Abstract: 1284303 Acrylic filaments KANEGAFUCHI KAGAKU-KOGYO KK 4 Nov 1969 53950/69 Heading B5B Acrylic filaments are made by dissolving in acetone and/or acetonitrile 70% to 95% by weight of a copolymer (I) of 30 to 80% by weight of acrylonitrile and 70 to 20% by weight of another ethylenically unsaturated monomer, together with 30 to 5% by weight of (II) an N- alkyl acrylamide homopolymer or copolymer thereof containing at least 50% by weight of N- alkyl acrylamide with another ethylenically unsaturated monomer, spinning the solution thereby formed into an acetone-water or acetonitrilewater coagulating bath, drawing out the wet-gel filaments at a draw ratio of 1À2 to 2À0, drying the drawn-out filaments at 110‹ C. or more, drawing the dried filaments at a draw ratio of at least 3À0, and annealing the drawn dried filaments by means of dry heat or wet steam at 130‹ to 150‹ C. The ethylenically unsaturated monomer of copolymer II may be methyl, ethyl, or butyl acrylate, methyl, ethyl or butyl methacrylate, vinyl acetate or chloride, vinyl pyridine, vinylidene chloride or acrylonitrile. The N-alkyl acrylamide homopolymer may be N-methyl, N- ethyl, N- propyl, or N-isopropyl acrylamide, N,N-dimethyl acrylamide or N,N-diethyl acrylamide. The concentrations of copolymer I and homopolymer or copolymer II in the solvent may be such that the resulting spinning solution contains 15 to 24% of solute. The proportion of polymer II may be 10 to 20 parts by weight.
Patent GB-1197194-A (GB)
Title: Controlling Exhaust Gas Flow to Waste Heat Boilers
Inventor: DAY ALEXANDER
IPC: F16K11/072
Filed: 1967-12-02
Abstract: 1,197,194. Valves. JOHN G. KINCAID & CO. Ltd. 2 Dec., 1968 [2 Dec., 1967], No. 54917/67. Heading F2V. A valve for directing exhaust gas from, e.g. a diesel engine selectively or in varying proportions to an outlet 3 to a waste heat boiler or a by-pass outlet 4, comprises a housing with ports including the inlet 2 angularly spaced about the rotational axis of a valve member. This member includes a closure portion 15 co-operating with the two ports 3, 4 and supported from a shaft 8 by means affording substantially unrestricted passage between the closure portion and the axis. This avoids flutter and reduces back pressure. Flanges 16, 17 on the valve member co-operate with fixed seals 18, 19, 20 defining the extreme positions. The valve is operated by a screw and nut device (34, 30), Fig. 1 (not shown), coupled to a long lever (28) which has a pin-and-slot connection (26, 27) with a crank arm (25) on the shaft. The valve can be locked in any position by a screw pin (36) in an arcuate slot (37). The operation can be manual, or automatic according to the steam pressure. The closure portion 15 may be a plate as shown, connected to the shaft by three webs (12, 13, 14), Fig. 3 (not shown); or it may be a sector of a hollow sphere joined only at the ends to the shaft.
Patent GB-1451741-A (GB)
Title: Thermal power plant with a pressurised gas producer
IPC: F01D25/00
Filed: 1974-12-20
Abstract: 1451741 Gas turbine power-plant BBC BROWN BOVERI & CO Ltd 20 Dec 1974 [22 Dec 1973] 55107/74 Headings F1G F1Q and FIT A gas turbine power-plant comprises a pressurized gas producer 7 forming producer gas from coal, a compressor 5 delivering air to the producer 7 and driven by a turbine 6 utilizing the unburnt producer gas as a working fluid, a dry-type dust collector 10 being situated upstream of, or in, the turbine, and a sulphur-removal device 12 being located downstream of the turbine, the producer gas being subsequently utilized as fuel, for a further prime mover, e.g. a gas turbine 14. As shown a first compressor 1 driven by turbine 14 delivers air to compressor 5 and to a combustion chamber 13 receiving the producer gas and delivering combustion products to turbine 14. Additionally, Fig. 2, (not shown), the chamber may constitute a steam generator (18) for an unspecified steam engine. The air-flow rate to the gas producer 7 is matched to the load on the plant by a valve 17 in a by-pass line 16 parallel to the turbine 6. The turbine 6 may provide additional useful power. Again, Fig. 3, (not shown), a dust collector is incorporated in the turbine, and takes the form of an annular gap (23) immediately upstream of a first row of rotor blades (22) and connected to a low-pressure region (24) to suck off the dust forced radially outward by passage through an inlet volute. An additional, or alternative, gap is situated immediately downstream of the blades (22). No inlet guide vanes are provided, and all surfaces exposed to the dust are made of hard metal, or coated with erosion-resistant material, e.g. a cobalt alloy with additions of tungsten, chromium and carbon. Again, if the inlet volute is omitted, inlet guide vanes are provided and a slot provided downstream of the first row of rotor blades.