baber/WOPTO huggingface dataset:
Patent GB-728290-A (GB)
Title: New diarylmethane derivatives
Inventor: LAMBERT ARTHUR
IPC: C07C37/20
Filed: 1951-12-19
Abstract: The invention comprises bis - (2 - hydroxy-3(a ) - alkylcycloalkyl - 5 - methylphenyl) - methanes in which the cycloalkyl groups, which may be the same or different, are cyclopentyl, methylcyclopentyl, cyclohexyl or methylcyclohexyl and the alkyl substituent has not more than 4 carbon atoms and is attached to the a -carbon atoms of the cycloalkyl group, i.e. the carbon atom which is joined to the phenyl radical; and the preparation thereof by (1) combining, in the presence of an acid condensing agent, 1 molecular proportion of p-cresol with 1 molecular proportion of an a -alkylcyclopentene, methyl - a  - alkylcyclopentene, a  - alkylcyclohexene or methyl-a -alkylcyclohexene in which the alkyl substituent has not more than 4 carbon atoms followed by (2) reacting 2 molecular proportions of the 2-a -alkylcycloalkyl-4-methylphenol so obtained with one molecular proportion of formaldehyde or a substance yielding formaldehyde, in the presence of an acid condensing agent.  As an alternative for the second stage, one molecular proportion of the 2-a -alkylcycloalkyl-4-methyl phenol is condensed with one molecular proportion of formaldehyde in the presence of a basic catalyst and the resulting product combined with one molecular proportion of same p-cresol derivative in the presence of an acid-condensing agent or said p-cresol derivative is substituted by a chloromethyl group by reacting it with one molecular proportion of formaldehyde in the presence of anhydrous hydrogen chloride and the resulting chloromethyl derivative is then condensed with a second molecule of the p-cresol derivative. Examples describe the preparation of (1) bis-(2 - hydroxy - 3 - a  - methylcyclohexyl - 5-methylphenyl)-methane; (2) bis - (2 - hydroxy-3 - a  - methylcyclopentyl - 5 - methyphenyl)-methane; (3) bis - (2 - hydroxy - 3 - a d , - dimethylcyclohexyl - 5 - methylphenyl) - methane; (4) bis - (2 - hydroxy - 3 - a  - ethylcyclohexyl - 5-methylphenyl) - methane, (5) bis - (2 - hydroxy-3 - a  - n - butylcyclohexyl - 5 - methylphenyl)-methane; and (6) 2 : 21-dihydroxy-3-a -methylcyclopentyl - 31 - a  - methylcyclohexyl - 5 : 51-dimethyldiphenylmethane.
Patent GB-826759-A (GB)
Title: Improvements relating to electrical stages for performing logical functions
Inventor: SCARROTT GORDON GEORGE
IPC: H03K19/16
Filed: 1956-09-29
Abstract: 826,759. Circuits employing bi-stable magnetic cores. FERRANTI Ltd. Sept. 25, 1957 [Sept. 29, 1956], No. 29772/56. Class 40 (9). Bi-stable magnetic cores A and B each have at least two input windings 12, an output winding 13 and a shift winding 11, the shift pulses supplied from sources 16 being in antiphase and each shift pulse applied to one core being overlapped in time by the preceding and following shift pulses applied to the other core. The output winding 13 of core A is linked with an input winding of core B and the output winding of core B feeds a load 15 which may be a further bi-stable core wound like A or B. Input signals are applied between shift pulses and may act with or against the sense of the shift pulses and may be generated by the output windings of other cores such as A. In the absence of inputs the cores are in one state and produce no output when driven. If an input, or the algebraic sum of all the inputs, to core A is sufficient to turn the core over, an output is produced by the subsequent drive pulse but this output will not effect core B until the drive pulse to core B ceases and will be further prevented from effecting core B when the next drive pulse is applied to core B. If there is residual magnetization in core A or if the input or algebraic sum of inputs to A is insufficient to provide an output which persists longer than the overlap between drive pulses, then core B receives no input from core A. Thus two or more inputs to core A may be needed to pass an input to core B providing, for example, a " two out of three " logical function.
Patent GB-486427-A (GB)
Title: Composite rubber and metal articles, and process for the manufacture thereof
IPC: B29C70/68
Filed: 1936-11-02
Abstract: 486,427. Securing cushions to supports. GETEFO GES. FUR TECHNISCHEN FORTSCHRITT. Nov. 2, 1936, No. 29832. Convention date, Nov. 2, 1935. [Class 52 (iv)] A cushion consists of sponge or mousse rubber adhesively secured to a metal plate, the lateral borders of which protrude beyond the cushion and are slidingly mounted in overhung grooves on a base. The sponge rubber 3 may be secured by an intermediate layer 2 of plain rubber, and it may be provided with a cover of felt or velvet.
Patent GB-953076-A (GB)
Title: Improvements in machines for making cigarettes and like tobacco articles
IPC: A24C5/18
Filed: 1960-08-30
Abstract: 953,076. Cigarette-making machines. K. KÍRBER. Aug. 30, 1960 [Nov. 27, 1959], No. 29853/60. Heading A2C. Tobacco is fed to a rotating feed worm 3, situated above a stream-forming duct 7, down a guide plate L which lies in a plane V which does not intersect the worm case 4 and which slopes towards the part of the worm wheel moving in the same general direction as the motion of the tobacco along the guide surface. The tobacco is picked off a carding drum 1 by a picker wheel 2 and fed by the worm 3 on to a suction belt 8 in the duct 7. Specification 343,111 is referred to.
Patent GB-1080418-A (GB)
Title: Improvements in or relating to paper and cardboard forming machines of the suction forming cylinder type
IPC: D21F9/04
Filed: 1965-07-15
Abstract: In a paper making machine in which stock is constrained against a suction forming cylinder by a plate extending around the rising side of the cylinder, the plate is adjustable as a whole as described in Specification 1,080,419.
Patent GB-857211-A (GB)
Title: Improvements in or relating to cosmetic therapeutic and veterinary applicators
IPC: A45D44/00
Filed: 1958-09-20
Abstract: A device for applying creams or waxes to the skin comprises a sheet of flexible open-cell polyurethane foam material into the pores of which the substance has been introduced by heating.  The foam is preferably backed by a heat insulating sheet of a material such as polyvinyl chloride and the device may be shaped to fit particular parts of the body.  An inflatable cover may also be provided to press the foam into close contact with the skin.
Patent GB-266072-A (GB)
Title: Improvements in or relating to sliding doors for show cases, cabinets and the like
IPC: E05D15/06
Filed: 1925-12-01
Abstract: 266,072. Co operative Wholesale Society, Ltd., and Templeman, S. Dec. 1, 1925. Cabinets and showcases. - The underside of the bottom frame member b of a cabinet door has a dovetailed groove in which are mounted carriers or cages e containing antt'riction balls f. A track h is provided on the frame of the case and central and end stops g are. provided in the groove d to separate and retain the carriers. In a modification the base of the groove d is of V-section as shown in Fig. 1 (Comp.).
Patent GB-391826-A (GB)
Title: Improvements in and relating to colour cinematography
IPC: G03B33/00
Filed: 1931-11-02
Abstract: 391,826. Colour kinematography. SHORT, S. G., 53, Felixstowe Road, Willesden, London. Nov. 2, 1931, No. 30290. [Class 97 (i).] Projection from films having a single rank of alternating colour records is effected by feeding the film forwards three images, with projection at each step, and backwards a double image without intermediate projection, each image being thus projected four times. As shown in Figs. 7 and 8A, the feed mechanism comprises a pair of grooved members h within which slides a gate h<1> having an aperture h<2> of a size corresponding to four picture spaces, a mask k carried by the members h having an opening corresponding to a single frame. The film j is clamped to this gate. At the lower end of the gate h<1> is a roller h<5> with teeth h<6>. At the upper end the gate h<1> is provided with a triangular extension h<8> having a pin h<9> in a groove in the cam member d. The cam groove is in eight parts, four of which, d<1>, d<3>, d<5>, d<7>, are concentric with the axis of rotation, and the other four d<2>, d<4>, d<6>, d<8> are eccentric, the first three each moving the gate stepwise by one frame, and the last d<8> bringing the gate back to its original position. The spindle h<18> of the sprocket roller h<5> has a star-wheel h<11> the arms of which are adapted to be engaged by a spring-biased ratchet-catch h<12>. On downward movement of the roller h<5> the catch is moved aside, but on upward movement of the gate when the pin h<9> is travelling in the groove d<8> the roller h<5> is rotated to pull down the film by one frame, giving an effective retraction of two frames. In a modification the feed mechanism may comprise a pair of claws, acting on opposite edges of the film and operated by cams. Registering means compensating for shrinkage of the film is provided. The colour filter is geared to revolve four times for every three revolutions of the cam. Specification 374,137 is referred to.
Patent GB-448385-A (GB)
Title: Puller-feed mechanism for sewing machines
IPC: D05B27/14
Filed: 1935-11-02
Abstract: 448,385. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.- (Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Nov. 2, 1935, No. 30313. [Class 112] A puller feed comprising a pair of toothed rollers arranged to ride easily over heavy cross-seams, works in conjunction with the usual feed dog to feed the work. The usual four-motion feed dog 10 is mounted in the feed bar 15 fulcrumed on the feed rocker 17 and is operated in the usual way. A shaft 26 journalled in the bed-casting carries the lower toothed feed wheel 27 disposed in rear of the feed dog 10. The shaft 23 carries a spur gear meshing with a spur gear 30, on a shaft 31 to which step-by-step rotary feed movements are imparted by an eccentric 34 on the main shaft 9. This eccentric actuates a pitman 35 which drives the shaft 31 through the usual roller clutch mechanism. The upper feed roller 57 is driven from the shaft 31 by bevel gears 37, 38, vertical shaft 39, bevel gears 41, horizontal shaft 42 and the shaft 47 furnished with universal ball couplings at both ends. The shaft 56 carrying the upper roller 57 is journalled in bearings in the arm 60 of a lever 61 pivoted to a bracket 63 on the auxiliary presser bar 67. This presser bar is vertically movable in bearings against the spring 72 to enable the roller 57 to ride over thick seams. The presser bar 67 is lifted by a hand lever 79.
Patent GB-891059-A (GB)
Title: Method of and device for forcing workpieces into drawing dies
Inventor: FRITSCHE KURT
IPC: B21C5/00
Filed: 1960-09-05
Abstract: 891,059. Drawing. SCHWERMASHINEN. BAU HEINRICH RAU WILDAU VEB. Sept. 5, 1960, No. 30602/60. Class 83 (4). In a method of forcing the end of a workpiece into a forming die, the workpiece is rotated whilst it is moved axially. A device for carrying out the method, shown in Figs. 1 and 2, comprises a housing 1 which has an internally threaded sleeve portion 7. A worm 3 drives a worm-wheel 2 which is mounted on the sleeve 7 and is keyed to the externally threaded portion 15 of an element 5. At the other end of the housing is an element 11 which is a relatively tight fit on the housing 1 and has a central opening 12. On the element 11 are three equiangularly spaced teeth 20, which extend towards the portion 15 and which have guide surfaces 21 for clamping jaws 9. Each jaw 9 has two rollers 10 which bear on cam surfaces 8. When the worm 3 is rotated the element 5 rotates and since the element 11 is a relatively tight fit on the housing 1 the jaws 9 are held against rotation so that the cam surfaces 8 move relative to the jaws which move radially inwards and clamp the workpiece, thereafter the element 11 and the workpiece rotate together. Further rotation of the worm 3 produces combined rotational and axial movement of the workpiece.
Patent GB-1224207-A (GB)
Title: Accelerating the anionic polymerization of lactams
IPC: C08G69/20
Filed: 1968-06-27
Abstract: 1,224,207. Anionic lactam polymerization. BADISCHE ANILIN- & SODA-FABRIK A.G. 27 June, 1968 [5 July, 1967], No. 30635/68. Heading C3R. [Also in Division C2] Compounds of the formula where m is 2 to 11 are used as accelerators in the anionic polymerization of lactams. Specified lactams are pyrrolidone, piperidone, caprolactam, capryllactam, enantholactam, caprilactam, laurolactam, epsilon - ethyl - epsiloncaprolactam, zeta - ethyl - zeta - enantholactam, and methylene - bis - caprolactams. Dyes and fillers, e.g. glass, asbestos and other fibres, graphite, gypsum, chalk, molybdenum disulphide, and sawdust may be included in the polymer. Various applications of the resulting polyamide are mentioned. The preparation of caprolactam - N - carboxylic carbazolamide which is used in the examples is described (see Division C2).
Patent GB-689773-A (GB)
Title: Improvements in or relating to rotary-valve radial-cylinder internal combustion engines
IPC: F02B37/10
Filed: 1948-11-25
Abstract: 689,773. Motor power plant; connecting-rods. WARNER, D. K. Nov. 25. 1948. No. 30652/48. Classes 110(iii) and 122(i) [Also in Group XXVII] In a power plant comprising a radial cylinder internal-combustion engine and an exhaust-driven turbine the engine intake ports are controlled by the piston 33 and by a rotary valve 102 having formed thereon impeller blades 111 acting to compress the charge. The intake air enters through filters 80 and flows through ports 81 to a multistage centrifugal compresser comprising impellers 82, 92 and 102. The impeller 102 comprises a sector the angle of which is approximately 180 degrees, the leading end 103 being of greater radius than the part carrying the vanes 111 and marking the intake ports 106-108 of each cylinder until the exhaust gases have been discharged through the ports 120, when the vanes 111 scavenge and charge the cylinder. The big ends 31 of the connecting rods 32 are segmental and are recessed to fit into one another. They are held on to the crank pin 30 by bands 41, the crankshaft comprising two parts locked together by a pin 25. The disc 102 is arranged opposite the crank-pin 30 to act as a counter-balance, and further balance weights 113, 50, are provided, the latter rotating in a groove 51 and acting to pump lubricating oil through a pipe 52 to a cooling radiator and back through a pipe 53 to lubricate the crankshaft bearings and gudgeon-pins. The exhaust gases drive a multistage turbine 125 coupled to the crankshaft through a hydraulic coupling 56 and then escape through a passage 128 provided with mufflers 129, which act as silencers and flame dampers. The flow of exhaust gases exerts an ejector action on a passage 152 and draws cooling air over the cylinder heads past cooling fins 5. At starting the engine is turned by the turbine 125 driven by compressed and preferably heated carbon dioxide supplied through ports 130<SP>1</SP>, the lubricating oil in the coupling 56 becoming quickly heated and, circulating through the lubricating passages facilitates starting. Some of the blades of the turbine 125 or the impeller 82 may be extended into the passages 152 or 150 to draw cooling air over the cylinder heads. An alternator 61, integral with the crankshaft, feeds a distributer arm 63 cooperating with contacts 64 connected to the sparking plugs, and the crankshaft output is taken off through hydraulic couplings 141, 142. Fuel such as paraffin is sprayed through nozzles 140, and petrol or ether may be supplied for starting. Steam obtained from an oil cooler and a waste heat flash boiler may be injected into the mixture before it reaches the cylinders.
Patent GB-648120-A (GB)
Title: Improvements relating to plug units of electrical plug and socket connectors incorporating a fuse
IPC: H01R13/68
Filed: 1948-11-26
Abstract: 648,120. Couplings. PARSONS, Ltd., C. H., and HANDLEY, G. B. Nov. 26, 1948, No. 30694. [Class 38. (i)] A combined terminal and fuse carrier for a plug is provided on one side with a foot engaging a recess in the plug base and on the opposite side with a resilient projection engaging a groove in the perpendicular wall of the recessed base to prevent rotation of, and hold in place, the terminal assembly. The latter comprises a terminal block 10 embraced by a U-shaped clip 14 forming the fuse carrier, the base of the clip carrying the aforementioned foot 15 and projection 18. The plug base 17 is recessed at 21 to receive the clip, lateral recesses 16 and 19 receiving the foot and projection respectively.
Patent GB-892075-A (GB)
Title: Electric switch for high frequency heating coils
Inventor: GOODRIDGE EDWARD SAMUEL
IPC: H01H1/36
Filed: 1959-09-08
Abstract: 892,075. Regulating switches; heavy-current switches. INDUCTION HEATING CORPORATION. Sept. 8, 1959, No. 30700/59. Class 38 (5). A switch for selection of one of two coils to be energized from a high-frequency source for induction heating comprises two planar copper conductors 30, 31 having terminal blocks 21, 22 for bolting to the usual terminal blocks 12, 13 of the supply transformer. Conductors 30, 31 are separated by an insulating wafer 32 (preferably of polyethylene) and turned at right-angles to carry coil connecting blocks 42, 43 respectively as shown. A copper switch block 50, provided with the co-operating connecting blocks 51, 52 is mounted by means of insulation 44 and suitably insulated bolts 53, 54, 55, 56, and is cut away to allow contact blocks 60, 61, integral with conductors 30, 31 respectively, to project flush with the surface of switch block 50. A switch contact block 71 is pivoted on block 50 by means of a bolt 70 and spring washer 76, and is suitably cut away on its mating face (Figs. 3 and 4, not shown) so as to bridge across blocks 50 and 60 (as shown) or across blocks 50 and 61 when rotated by insulated handle 79, a stop 80 on block 50 determining these two positions. One coil is connected to blocks 42 and 51 and the other coil is connected to blocks 43 and 52. Conduits such as 23 are provided for cooling water and a suitable channel is formed within block 50. Each coil may consist merely of conduit equipped with nipples for connection to orifices such as 23<SP>1</SP> and 57<SP>1</SP>, in which case the blocks 42, 43, 51, 52 are not provided.
Patent GB-479548-A (GB)
Title: Process for making polyvinyl acetal resins
IPC: C08F8/28
Filed: 1936-11-11
Abstract: "Partial" polyvinyl acetals (i.e. those containing only acetal and hydroxyl groups) are prepared by treating at about 60 DEG  C. an anhydrous alcoholic solution of a polyvinyl ester simultaneously with an inorganic acid, e.g. anhydrous hydrochloric or sulphuric acids, and an amount of aldehyde less than that equivalent to the alcoholysis product, and treating the reaction product with alkali, e.g. alcoholic sodium hydroxide.  Polyvinyl esters specified are those of aliphatic acids, e.g. polyvinyl formate, acetate, propionate, or butyrate, or of inorganic acids, e.g. polyvinyl halides.  Aldehydes specified are straight-chain saturated aliphatic aldehydes containing at least three carbon atoms, e.g. propionaldehyde, butyraldehyde, 2 - ethyl butyraldehyde, n-hexaldehyde, 2-ethylhexaldehyde; also benzaldehyde, formaldehyde, acetaldehyde, crotonaldehyde, isomers of vinyl crotonaldehyde, e.g. hexadienal; or mixtures thereof.  The solvent alcohol may be any lower aliphatic alcohol, e.g. methyl, ethyl, iso-propyl, or butyl alcohol.  Products containing 25--80 per cent, especially those with 60 to 75 per cent of acetal groups, may be used as interlayers in safety glass. In examples: a methyl-alcoholic solution of polyvinyl acetate was simultaneously treated with n-butyraldehyde and (a) anhydrous hydrochloric acid, (b) anhydrous sulphuric acid, and the acetal precipitated with water and treated with alcoholic sodium hydroxide.  The products are soluble in ethyl alcohol, in glycol monoalkyl ethers, and in methyl alcohol containing less than 10 per cent of water; and are compatible with ester plasticizers, e.g. diethyl phthalate.
Patent GB-1013945-A (GB)
Title: Aqueous etch composition
Inventor: BRICKNELL KENNETH
IPC: B41N3/08
Filed: 1961-11-06
Abstract: An aqueous etch composition for paper base planographic printing masters comprises an anionic macromolecular colloidal polyelectrolyte containing a high proportion of dissociable anionic groupgs having a pH of at least 5 but less than 7, containing a humectant and an inert inorganic colloid.  The humectant may be glycerol, diethylene or triethylene glycol, sorbitol or mannitol and the inert inorganic colloidal material may be colloidal silica, stannic acid, metasilicic acid on fluorosilicic acid which may be in the form of an alkali metal or ammonium salt.  The polyelectrolyte may be a naturally occurring gum or polysaccharide or a carboxymethyl derivative thereof, e.g. gum arabic, gum tragacanth, gum karaya, pectin, guar gum and alginic acid and its salts may be used.  In addition polymers of acrylic acid of the general formula CH2=CR.COOH, where R is a hydrogen or halogen atom or an alkyl group having 1 to 4 carbon atoms, or a salt of said polymer, may also be present.  In the examples sodium alginate powder, gum tragacanth and gum guar are the polyelectrolytes used when the acrylic polymers are not employed.ALSO:An aqueous etch composition for paper base planographic printing masters comprises an anionic macromolecular colloidal polyelectrolyte containing a high proportion of dissociable anionic groups having a pH of at least 5 but less than 7, containing a humectant and an inert organic colloid.  Suitable humectants and inert inorganic colloids are as listed in Specification 1,013,944. The anionic colloidal polyelectrolyte may be a polymer of acrylic acid of the general formula CH2=CR.COOH where R is a hydrogen or a halogen atom or an alkyl group having 1 to 4 carbon atoms, or a salt of said polymer as in Specification 1,013,944.  In place of or in addition to said acrylic polymers a naturally occurring gum or polysaccharide or a carboxymethyl derivative thereof may be used, e.g. gum arabic, gum tragacanth, gum karaya, pectin, guar gum and alginic acid and its salts may be used.