baber/WOPTO huggingface dataset:
Patent GB-424335-A (GB)
Title: Improvements in and relating to the manufacture of floor coverings and like materials
IPC: H01H33/32
Filed: 1933-08-09
Abstract: Floor coverings are made by steps including incorporating substantially solvent-free chlorinated rubber containing more than 60 per cent of chlorine with more than 55 per cent of a plasticiser therefor, calculated on the weight of the chlorinated rubber, the incorporation being conducted at a raised temperature and in the absence of added volatile solvents.  Softeners may be added, but the total amount of plasticizer and softener must not exceed twice the weight of the rubber.  The chlorinated rubber may have a viscosity of 0,1 to 1,78 c.g.s. units in 10 per cent solution in toluene at 25 DEG C., and may contain a residual proportion-at most 10 or 12 per cent, but usually 2 to 3 per cent-of the volatile solvent associated with it during its manufacture.  The plasticizers may be tricresyl phosphate, dibutyl phthalate, chlorinated sulphonamide, and chlorinated diphenyl. The softeners may be mineral oils, gelled vegetable oils, (e.g. gelled castor oil), chlorinated naphthalene. There may be added fillers, e.g. cork dust, asbestos, wood meal, yellow ochre, oxidized drying oils, linoleum cement, natural or synthetic resins and cellulose derivatives, e.g. cellulose acetate, benzyl cellulose, ethylcellulose.  Various methods of incorporating the ingredients are described, and two examples are given.
Patent GB-911405-A (GB)
Title: Improvements in and relating to scent sprays
IPC: A61M11/02
Filed: 1961-06-20
Abstract: 911,405. Forcing liquids by gaseous pressure. KIASHEK, G. June 20, 1961, No. 22303/61. Class 102(2). A scent spray has a spring loaded piston 3, a valve member 9 at the end of a piston rod 8 which passes through a flanged partition 2. Between a disc 12, resting on the flange, and the partition 2 lies on absorbent pad 16 and a scraper disc 20. As the piston 3 is displaced, the .. valve 9 is opened and scent flows through passages formed by radial ribs on the partition 2 under the disc 20 and impregnates the pad 16. Subsequent operation of the piston will sprayscent through an orifice 19. A cut out portion in the disc 12 is provided near the orifice 19 and a part of the pad 16 projects therethrough to improve spraying properties. .
Patent GB-895147-A (GB)
Title: Method of producing thiocarbamates and thiocarbonates
IPC: C07C333/02
Filed: 1958-07-14
Abstract: An ester of a thiocarbamic or thiocarbonic acid is prepared by mixing together an alkanol or an alkyl or aryl mono- or di-mercaptan with urea, thiourea or an alkyl, cycloalkyl or aryl mono- or unsymmetrical di-substituted urea or thiourea, one of the compounds containing sulphur, reacting a source of BF3 with the mixture at a temperature of from 35 DEG C. to 200 DEG C. until at least one molar equivalent of BF3 based on the amount of urea or thiourea used has been taken up in the reaction and thereafter separating the resulting thiocarbamate or thiocarbonate ester from the reaction mixture.  Thiocarbamates are first formed and then thiocarbonates when more than one mole of BF3 has reacted.  Thiourea and an alkanol yield a thionocarbamate and, with continued reaction, a mono-thiocarbonate.  Thiourea and a mercaptan yield firstly a di-thiocarbamate and then a trithiocarbonate.  Urea and a mercaptan yield firstly a thiolcarbamate and then a dithiocarbonate.  A resulting monothiono or monothiol-carbamate may be mixed with an alkanol or an alkyl or aryl mono- or di-mercaptan and the mixture reacted with BF3 at 35 DEG C. to 200 DEG C. to give, respectively, a monothionocarbonate, a monothiol-thionocarbonate, a monothiolcarbonate and a di-thiolcarbonate.  Similarly, a resulting dithiocarbamate mixed with an above-defined mercaptan may be reacted with BF3 to give a trithiocarbonate.  The reactions are deaminations and may be effected in the presence of inert solvents and under reduced pressure.  In Examples (1) to (8), BF3 is reacted in up to one molar amount with thiourea and methanol, ethanol, propanol, isopropanol or butanol; with ethanol and N-cyclohexyl thiourea; with urea and propyl mercaptan, and with thiourea and propyl mercaptan, yielding the appropriate thiocarbamates.  In Example (9), a 1 : 4 molar mixture of urea and ethyl mercaptan is reacted with 2 moles of BF3 to give diethyl dithiol carbonate.  In place of BF3, there may be used BF3, NH3, BF4, NH4, BF3 etherates, and complexes of the type (H2NCONH2)xBF3 wherein x is a whole number from 1 to 4.  Other specified reactants include methyl and unsym.-dimethyl thioureas, butyl and phenyl ureas, stearyl alcohol, dodecyl mercaptan and 1,2-ethane dithiol.  Specification 840,866 is referred to.
Patent GB-189506-A (GB)
Title: Improvements in or relating to the production of coke
IPC: C10L5/06
Filed: 1921-08-24
Abstract: 189,506. Broadbridge, W., Edser, E., and Beasley, W. H. Aug. 24, 1921. flotation processes.-In one example of the froth flotation of coals prior to the coating and flocculation of the coal particles in aqueous suspension with liquefied binding medium, the agents employed were 1 lb. of cresol and <5>/6 lb. of paraffin per ton of slack. Specifications 193,466, [Class 55 (ii), Gas manufacture &c.], and 155,875 are referred to.
Patent GB-381653-A (GB)
Title: Improvements in pipe joints
IPC: F16L17/04
Filed: 1931-08-10
Abstract: 381,653. Pipe joints. VICTAULIC CO., Ltd., 'Kings Buildings, Dean Stanley Street, Millbank, London, and JOHNSON, P. G., Brackley, South View, Letchworth, Hertfordshire. Aug. 10, 1931, No. 22590. [Class 99 (i).] A sealing ring for pipe joints of the kind described in Specifications 149,381 and 264,095, [both in Class 99 (i), Pipes and tubes, Joints &c. for], has transverse ribs b, the free edges b<1> of which contact with the whole width of inturned edges a<1> of the ring only when the ring is applied to the pipes. The ribs may extend the whole width of the ring or may be provided with a gap. In a ring in which the lips are at an angle to one another when the ring is in position in the joint as described in Specification 234,863, [Class 99 (i), Pipes and tubes, Joints &c. for], the ribs b extend over the lips and their edges b<2> contact with one another only when the ring is applied to the pipes.
Patent GB-469859-A (GB)
Title: Improvements in and relating to methods of and machines for applying adhesive
IPC: B05C13/00
Filed: 1936-08-18
Abstract: An adhesive pattern is applied to a sheet having a plane surface by forming on said sheet a temporary relief surface corresponding to the adhesive pattern to be produced, by temporarily distorting the sheet in a manner permitting it to return readily to its plane surface form, applying adhesive to the relief surface while the sheet is subjected to the distorting force, and then permitting the sheet <PICT:0469859/III/1> <PICT:0469859/III/2> to return to its normal plane surface condition.  In the apparatus shown, sheets a are lifted, in individual succession, by a suction feed head 23 from a hopper 10 and are carried over the gumming device 19 to a feeding means 15, 17 for box body blanks 16 to which the sheets are to be applied.  The suction feed head 23 has a perforated lower plate 24, provided with a recessed surface 29 and a relief surface 28 corresponding to the adhesive pattern to be applied to the sheet a. It can be moved along the transverse rail 32 by means of an oscillating lever 39, and can also be moved vertically by means of levers 34 which carry a shaft 36 oscillated in predetermined timed relationship with the movements of the blank feeding fingers 15.  The application and discontinuance of suction to the head 23 is controlled by timed valving.  When a sheet a from the hopper 10 is caused to adhere to the lower face of the plate 24 it will be distorted in such a fashion that adhesive is applied only to such parts as correspond with the relief surface 28.  After the application of adhesive, the sheet is brought over and pressed into contact with a blank 16, the suction head then returning upwardly and laterally, above the roller 19, to the hopper 10.  The roller 19 may be replaced by an adhesive-applying brush.
Patent GB-1499526-A (GB)
Title: Electric switch comprising an arcing contact
IPC: H01H1/42
Filed: 1975-05-23
Abstract: 1499526 Arc rupturing in switches HAZEMEIJER BV 23 May 1975 [7 June 1974] 22792/75 Heading H1N An electric switch comprises a stationary contact 1, a movable contact 2, 3, and arcing contacts 8, 9, the arcing contacts being either secured to the fixed contact and co-operating with the movable contact or being secured to the movable contact and co-operating with the fixed contact, Fig. 7, not shown, and so arranged that on contact breaking the arcing contacts are the last to separate from their co-operating contact whilst, due to cams 4, 5, 14, 15 associated with the contacts, on contact making the arcing contacts make contact with their co-operating contact after the contact to which they are secured. In a first embodiment first cams 4, 5 are attached via resilient springs 6 to the fixed contact 1 and second cams 14, 15, are attached to the moving contact so that during contact making the second cams ride over the first cams moving the arcing contacts away from the other contacts but during contact breaking the second cams are forced under the first cams forcing the arcing contacts into contact with the fixed contact. In a second embodiment the cams are in the form of edge cams to which the arcing contacts are secured, and which are attached to the fixed contact, the cams running on the moving contact and so disposed under spring bias as to keep the arcing contact away from the other contacts but revolves at the start of contact separation to allow the arcing contact to move into contact with its co-operating contact during contact separation. The cams are made of insulating material.
Patent GB-190758-A (GB)
Title: Improvements in or relating to variable speed gear more especially intended for electric photographic printing or copying machines
IPC: G03B27/06
Filed: 1921-08-29
Abstract: 190,758. Halden & Co., Ltd., J., and Halden, J. B. Aug. 29, 1921. Variable-speed gearing specially adapted for photographic printing machines comprises a variablespeed gear having an idle gear 4 movable between stepped cones 2, 3 arranged in series with another variable-speed gear in order to obtain increased range of speeds. The other gear may comprise two worm-wheels 6, 7 loose on the driving-shaft 5 of the cone gear and driven from two worms 13, 14 geared together and driven through a belt 18. A sliding double clutch 10 entrains either worm pair. More than two worm trains may be used.
Patent GB-242044-A (GB)
Title: Improvements in apparatus for aerating liquids
IPC: B67D1/02
Filed: 1924-09-27
Abstract: 242,044. Soda-Stream, Ltd., and Hucks, W. Sept. 27, 1924. Addition to 229,733. Cam-and-lever-actuated pumps; relief devices; valve-gear; single-acting bucket pumps. - The aerating chamber comprises a cylinder 1 communicating at the bottom with a liquid reservoir 2 and at the top with a gas admission pipe 53. A piston 6 having secured to its upper surface a flexible valve 7 opening upwards works inside the cylinder. When the piston is depressed the liquid passes upwards around the valve and is aerated the outlet 22 being closed by a valve 27. When the piston is raised the valve 27 is simultaneously opened and the aerated liquid is ejected through a spout 25. The piston is actuated by a crank 21 the shaft 19 of which carries a cam 18 engaging a lever 11 connected to a yoke 15 joining rods 17. The rods 17 pass through the cover 14a of the chamber 1 and are joined at the bottom by a yoke 16 to which the piston rod 8 is secured. A pawl 63 engaging a ratchet wheel 62 prevents back-movement of the crank 21. The valve 27 is actuated by a rod 31 from which it is separated by a spring 28. The rod 31 has threaded engagement wth a bracket 33 which passes through a slot in a plate 14 forming an extension of the cover 14a and is secured on the upper side of the plate 14 to a sliding plate 35 having uprights 37 engaged successively by a cam 36 so as to open or close the valve 27 at the required phases. The valve 27 may be directly operated when required by a hand wheel 43. It may also be opened against the action of the spring 28 by excess pressure in the chamber 1. A counter 38 indicating the number of portions of liquid aerated is fixed to the sliding plate and is provided with a lever 39 engaging a hole 40 in the fixed plate 14. The valve chamber is connected by a passage 60 with the space above the reservoir 2 to prevent syphoning after the aerated liquid has been discharged. In order to prevent the operation of the apparatus until the gas has been admitted the shaft 19 is provided with lugs 46 engaging projections 47 on a bell-crank lever 48 the opposite end of which is connected to a yoke 56 joining rods 58. The rods 58 are connected at the bottom to a bar 57 secured to the rod 55 of a plunger 50 working in a chamber 51 the upper part of which is connected by a passage 52 with the upper part of the chamber 1. When gas enters the chamber 1, the plunger 50 is depressed against the action of a spring 54 and the shaft 19 is released. The reservoir 2 is supplied with liquid from a spherical bottle 3 whose nech dips below the liquid level. The bottle 3 is supported on a hinged. cover 4 and is provided with a stopper 5, operated from outside, to prevent escape of liquid during re-charging. The reservoir 2 is provided with a stoppered drain pipe 44. A drip-tray 67 is provided beneath the spout 25.
Patent GB-798015-A (GB)
Title: Process for preparing high molecular polymers from isobutylene
Inventor: GARABRANT ARTHUR RICHARD
IPC: C08F10/00
Filed: 1956-07-24
Abstract: <PICT:0798015/IV (a)/1> Isobutylene is polymerized with a metal halide catalyst of the Friedel-Crafts type at temperatures within the range -58 DEG  to 104 DEG  F. in the presence of 25 to 95 per cent of an inert solvent for the polymer based on the total feed, the solvent being selected from the group of normally liquid alkane hydrocarbons of 5 to 8 carbon atoms.  Solvents, such as petroleum ether, pentane, isopentane, hexane, isohexane or commercial hexane, heptane, isoheptane, octane or isooctane, and catalysts such as aluminium chloride and bromide, titanium and zirconium tetrachloride and uranium chloride as solids in an amount 0.01 to 2.0 per cent by weight of isobutylene in the feed or as a solution in methyl or ethyl chloride and saturated hydrocarbons in an amount between 0.005 and 1.0 per cent, may be used.  In the case of solid catalyst the solution is kept in violent agitation in the reaction zone.  In examples, polyisobutylene is prepared using commercial hexane, hexane and petroleum ether, isopentane and iso-octane as solvents and a continuous process is described in which hexane and pure isobutylene is mixed with a similar recycled mixture and passed into a distillation tower 3, where it is dried and purified.  After cooling to -40 DEG  F. it is mixed, 12, with finely divided aluminium chloride catalyst or the catalyst is introduced to the reactor 13 where the mixture is agitated.  Polymer produced dissolves in excess solvent and is withdrawn as a slurry with aluminium chloride and separated by adding dilute caustic and settled in a tank 19, and flashed in a drum 22 to yield a polyisobutylene product of MW. from 10,000 up to 50,000.  A side stream to which is added a heavy carrier oil, is distilled 28, the upper fraction dried and recycled and lower fraction distilled in stills 34 and 37 to yield a polymer-oil solution which is dried and filtered.  The polymers are of high molecular weight and are stable against shear breakdown.
Patent GB-221086-A (GB)
Title: Improvements relating to tools and implements having bevelled cutting edges
IPC: B26B13/04
Filed: 1923-09-13
Abstract: 221,086. Corney, N. S. Sept. 13, 1923. Pivoting adjustments. - The pivot of a hand shears comprises an upstanding boss f on one member a engaging a hole in the other member b; a headed screw l engages the boss and bears against the member b to hold the members a, b closely together.
Patent GB-1066474-A (GB)
Title: Improvements in or relating to methods of visualizing an electrostatic charge image
IPC: G03G9/00
Filed: 1964-06-03
Abstract: 1,066,474. Developing electrostatic images. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 3, 1964 [June 6, 1963], No. 22998/64. Heading G2H. An electrostatic latent image on an image carrier 1 is developed by particles of boron oxide which adhere to areas of electrostatic charge. The boron oxide is removable by heating to a temperature of at least 40C. to permit repeated use of the image carrier. The image carrier 1 is mounted in a frame 2 provided with a colorable cover 4 and then electrostatically charged positively. An X-ray image is projected on to the charged carrier 1. The frame 2 is placed on a chamber 5 having a funnel-shaped inlet 6 and an electrode 8. A spirit burner 9 filled with triethyl borate is placed beneath the inlet 6, such that particles of boron oxide rise through the funnel and are charged negatively by the electrode 8 and deposit on the positively charged image on the carrier 1.
Patent GB-615184-A (GB)
Title: Electron discharge apparatus
IPC: H01J21/08
Filed: 1946-08-01
Abstract: 615,184. Electron discharge apparatus. VERWALTUNGSGES. DER WERKZEUGMASCHINENFABRIK OERLIKON. Aug. 1, 1946, No. 23029. Convention, date, Aug. 2, 1945. [Class 39 (i)] An electron discharge tube for converting a mechanical displacement into an electrical signal has two anodes each receiving part of the beam, a movable electrode determining by its position the distribution of the current between the anodes and a positive feedback connection from the anode circuit to the movable electrode, or electrodes electrically associated with it, for amplifying electrically the original current change caused by the movement of the electrode. In a push-pull arrangement, cathode 48, Fig. 2, normally shares its current equally between anodes 49, 50 which are separated by insulating partition 56. When the flexible diaphragm 51 moves the controlling member 53, which slides in a hole in partition 56, the proportion of current passing to the anodes is varied. By crossconnecting the anode circuits through batteries 59, 60, Fig. 3, to the opposite fixed electrodes 54, 55 after the fashion of a multivibrator, the variation is amplified. In a cathode-ray tube, the beam from cathode 61, Fig. 4, is focused by electrodes 62, 63, 64 at a point between deflecting plates 65, 66 of which 66 is connected to flexible diaphragm 73. Movement of 66 varies the deflection field and alters the distribution of the current between output electrodes 70, 71. A suppressor electrode 72 is provided. By coupling the plate 65, through battery 75, to one side of the output circuit, the variation is amplified. The movement may be transmitted from the flexible wall portions through levers or gears within the envelope. The cathode may be moved instead of or in addition to the other electrodes. The device may be used for measuring the pressure of fluid flowing in a pipe. The Specification as open to inspection under Sect. 91 comprises also other arrangements having movable electrodes without feedback. In one form, the flexible diaphragm 2, Fig. 1 (Cancelled), is connected by rigid rod 12 to the movable part 6 of the controlling electrode, which co-operates with the fixed part 7 to present a variable gap through which passes the electron stream from cathode 5 to anode 8. The electrodes 6, 7 may be replaced by a helical strip of variable pitch or by a multiple ring member 34, Fig. 4 (Cancelled), moving opposite gaps in a similar fixed member 36. The member 34 is connected by rigid framework 33, sliding in guide 37, to a bellows 31, which enables the device to operate as a barometer. In another form, the controlling member 39, Fig. 5 (Cancelled), is itself a flexible wall portion and is directly opposite cathode 38. The current to anode 40 is controlled by the varying distance between electrodes 38, 39. This subject-matter does not appear in the Specification as accepted.
Patent GB-388321-A (GB)
Title: An improved safety razor blade and holder therefor
IPC: B26B21/30
Filed: 1932-08-17
Abstract: 388,321. Safety razors. BICK, W. and BIEGMANN, 0., (trading as BICK & BIEGMANN), 35, Schwertstrasse, Solingen, Germany. Aug. 17, 1932, No. 23077. Convention date, June 24. [Class 30.] A blade 1 for use in holders adapted also for use in stropping and having one cutting edge 3, is made with a slot 2 and projections 5. The latter bear against flanges 7 of T-shaped loops e formed on the holder. The comb c is formed with stops 9 to prevent the blade from shifting forwardly.
Patent GB-465090-A (GB)
Title: Colour photography or kinematography
IPC: G03C7/30
Filed: 1936-08-22
Abstract: 465,090. Colour photography. TRUECOLOUR FILM, Ltd., and REINDORP, J. H. Aug. 22, 1936, No. 23110. Drawings to Specification. [Class 98 (ii)] Coloured images are produced from latent colour-record images in superimposed layers or in different depths of a single layer of a silver halide emulsion by treating the upper layer or stratum before or after the image therein has been developed, with a solution containing an iodide of the alkali metals or ammonium iodide but no iodine, which renders the image in this layer or stratum incapable of development by a developer of low reduction potential, developing the image ' in the lower layer or stratum with a developer of low reduction potential and colouring it, and finally developing the image in the upper layer or stratum if not already developed and colouring it. The colouring may be performed by chemical or dye toning or by the use of a colour developer. The process may be applied to layers containing images which have been developed and bleached. The iodide bath may contain also sulphite and thiocyanate or thiosulphite. In one example, a two layer film, the upper layer of which is to be coloured yellow and the lower magenta, is first treated in a bath of potassium iodide, sodium sulphite and sodium thiosulphate until the solution has penetrated the upper layer and the lower layer is then developed in a diethyl-p-phenylene diamine developer containing p-nitrobenzyl cyanide as a colour former and the upper layer in a metol developer. The silver in the upper layer is converted into silver ferrocyanide in a bath of potassium ferrocyanide and ammonia loaded with alcohol and glycerine to control penetration, a stop bath of sulphite being used. It is then redeveloped in a solution of the sodium salt of 1:2: 6-aminonaphthol sulphonic acid containing alpha-naphthol as a colour developer for yellow. The silver is finally removed with Farmer's reducer. Further examples of procedure are given in the Specification. Specifications 218,632, [Class 98 (ii)], and 382,320 are referred to.
Patent GB-723473-A (GB)
Title: Improvements in hand-operated hoes
IPC: A01B1/06
Filed: 1952-09-15
Abstract: 723,473. Hand hoes. CARR, W. S. Aug. 28, 1953. [Sept. 15, 1952] No. 23110/52. Class 6 (2). A hand operated hoe comprises a double edged blade 9 mounted stirrup-wise across the bottom of two side arms 5 of a carrier frame 4 which is pivotally carried on a main frame 1 secured to a handle 2. The angular movement of the carrier frame is limited by means of pivotally mounted blocks 11 which abut the edge of the carrier. frame. The blocks may be carried by a pivot having its axis displaced from the centre of the block so that by rotating the blocks the spacing relative to the carrier frame may be varied. A landwheel may be provided and may be mounted between arms fixed to the main frame.
Patent GB-1203477-A (GB)
Title: Chlorine-containing elastomers
IPC: C08C19/18
Filed: 1968-05-15
Abstract: 1,203,477. After-treating polydienes. ALLIED CHEMICAL CORP. 15 May, 1968 [23 May, 1967], No. 23129/68. Heading C3P. A homopolymer of a diolefin of formula wherein X and X<SP>1</SP> are each H, Cl or CH 3  and n is 0, 1, 2, 3 or 4 or a copolymer thereof with styrene, acrylonitrile or isobutylene, said polymer having pendant vinyl groups, is reacted with a compound of formula