baber/WOPTO huggingface dataset:
Patent GB-575678-A (GB)
Title: Improvements in or relating to pressure-sensitive adhesives and adhesive tape made therefrom
IPC: C09J7/38
Filed: 1943-03-27
Abstract: A pressure-sensitive adhesive consists essentially of cellulose nitrate, a plasticiser, and a soft tack-imparting synthetic resin which is either a castor oil-modified alkyd resin, a glyceryl ester of rosin, or a soluble phenolformaldehyde resin, or a mixture of two or more of these, the amount by weight of the plasticiser being at least twice as great and that of the resin being greater than the amount of cellulose nitrate.  Volatile solvents such as benzene, alcohol, acetone, xylene, or mixtures of these may be used in preparing the adhesive in a form suitable for application to surfaces which are to be rendered adhesive.  The plasticiser may be dibutyl phthalate, blown castor oil, white oil, liquid paraffin, or tri-cresyl phosphate.  In examples, the adhesive comprises cellulose nitrate, castor oil-modified alkyd resin, ester gum, dibutyl phthalate, colouring matter, and a solvent mixture comprising acetone, benzene and methylated spirit.  An adhesive tape is made by coating the adhesive composition on to a regenerated cellulose or cellulose acetate film, or a paper strip.  The solvents are removed by passing the coated strip through an oven.  The backing may be first treated with a primer, e.g. for paper a solution of glue and glycerine may be employed, or in the case of a regenerated cellulose or cellulose derivative film, there may be used an emulsion of vinyl acetate or methyl methacrylate, or a mixture of casein and methyl methacrylate.
Patent GB-1103939-A (GB)
Title: Preparation of block copolymers
IPC: C08F2/00
Filed: 1967-02-02
Abstract: Multi-block copolymers are formed by a process comprising (1) polymerizing to substantial completion a first monomer by anionic polymerization in an inert organic solvent, (2) adding to the solution of the living homopolymer so formed a second monomer and allowing said monomer to polymerize to substantial completion on to said homopolymer, and (3) coupling the living block copolymer so formed with CO2, CS2 or COS.  The process is carried out using substantially anhydrous conditions and, preferably, using an inert atmosphere. Suitably the first monomer is a vinyl substituted aromatic hydrocarbon and the second monomer is a conjugated diolefinic hydrocarbon. Suitable initiators are the lithium, and also the sodium, hydrocarbyls.  In the examples, polystyrene-polybutadiene-polystyrene block copolymers are formed using n-butyl lithium as initiator, benzene as solvent, and each of the coupling agents.  The resulting copolymers are pressed into films and microdumbells prepared therefrom.
Patent GB-1030624-A (GB)
Title: Improvements in and relating to halogenated diphenyl derivatives
IPC: C08K5/06
Filed: 1963-02-07
Abstract: The invention comprises compounds of formula (CH2=CH-CH2-O)nR and their derivatives of formula (YCH2-CHX-CH2-O)nR, wherein R is a halogenated radical derived from biphenyl, n is 2-4, X is H or halogen and Y is halogen or a halogenated methane-derived radical. The allylic compounds are made by reacting allyl chloride with an alkaline salt of a halogenated polyhydroxydiphenyl; the derivatives are made by reacting the allylic compounds with, e.g., halogens, CCl4, CBr4, CHCl3, CHBr3 or CBrCl3.  In examples, bi-(allyloxytetrachlorophenyl) was prepared and converted to bi-(2,3-dibromopropoxytetrachlorophenyl) by the stated methods; the latter compound was stabilized by addition of an epoxidized soybean oil.  The derivatives are stated to be fireproofing agents.ALSO:The inflammability of resins such as polyethylene, polypropylene, polyisobutylene, polystyrene, poly-alphamethylstyrene, polyacrylic and methacrylic acids and esters, polyvinylacetate, polyacrylonitrile, polyesters, polyurethanes, polyamides, epoxyresins, urea-formaldehyde, melamine - formaldehyde and phenol-formaldehyde is stated to be reduced by the presence of compounds of formula (YCH2-CHX-CH2-O)nR, wherein R is a halogenated radical derived from diphenyl, n is 2-4, X is H or halogen and Y is halogen or a halogenated methane-derived radical, such compounds being introduced either before or after polymerization.  There may also be present tri-(2,3-dibromopropyl) or tribromomethyl phosphates, pentabromophenol, decachlorodiphenyl or antimony oxide.  Examples describe compositions containing bi-(2,3 - dibromopropoxytetrachlorophenyl) stabilized with an epoxidized soybean oil, and (a) polystyrene, (b) polymethacrylic resin optionally with antimony oxide, (c) polyethylene optionally with antimony oxide, (d) acrylonitrile-butadiene-styrene resin with a lubricating agent and optionally antimony oxide.
Patent GB-118568-A (GB)
Title: Improvements in and relating to Bobbins for Drawing Spinning and like purposes.
IPC: B65H75/14
Filed: 1918-03-25
Abstract: 118,568. Briggs, A. H., and R. C. V. Patent Bobbin Co. March 25, 1918. Addition to 105,734. Bobbins.-The central aperture in the bobbin head 1 is made tapered and the head is forced, with the smaller end of the aperture first, on to the end of the barrel up to the shoulder 6, the part 4 being slightly tapered and a depression formed between it and the shoulder 6. The bore of the barrel is also scored axially and is expanded or held expanded against the head by a tubular plug having a conical head 9 and, if desired, circular grooves 10 on its shank. The forcing of the head on to the barrel, the scoring of the barrel, and its expansion against the scored aperture in the head may be effected simultaneously by a mandrel having a tapering portion with axial projections to form the scorings in the barrel. In lieu of wood, the bobbin may be made of a known composition containing compressed paper, guttapercha, sawdust, &c., which is hard when cold but can be softened, by warming.
Patent GB-1112793-A (GB)
Title: Preparation of overbased calcium alkylphenate sulfides
Inventor: HERD RICHARD SAMUEL
IPC: C07C319/00
Filed: 1966-02-07
Abstract: Oil compositions contain overbased sulphurized calcium hydrocarbylphenates prepared from a reaction mixture of CaO, MeOH, CO2 and hydrocarbylphenol sulphide (see Division C2). Preferably, an oil concentrate is prepared directly by use in the preparation of a process oil as diluent.  Such process oils are naphthenic or paraffinic mineral oils, alkylene polymers, e.g. polypropylene, and ester oils of polycarboxylic acids, and phosphoric acid. Preferred oils are a solvent-refined mineral oil, and particularly a paraffinic oil of viscosity 100 SUS at 38 DEG  C.ALSO:The title product is made by forming an anhydrous reaction mixture of CaO, MeOH and CO2, either together with or subsequently with hydrocarbylphenol sulphide, wherein the CO2: Ca mole ratio is 0.4-0.8 and the temperature at least at the beginning of the introduction of CO2 is 10-30 DEG  C, and subsequently heating to drive off MeOH.  The product may be treated with further CO2.  The sulphide is preferably derived from nonyl- or dodecyl-phenol.
Patent GB-634559-A (GB)
Title: Improvements in or relating to coke ovens
IPC: C10B27/00
Filed: 1948-02-23
Abstract: 634,559. Coke ovens. WOODHALL-DUCKHAM (1920), Ltd., and NASH, C. W. Feb. 23, 1948, No. 5238. [Class 55 (i)] [Also in Group XXVI] An improvement in Specification 624,082 which comprises using a variable-pitch fan 23 mounted in the gas-duct 22 extending between the vertical portions 15 and 16 of the off-take dust for circulating cooled gases in. alternate directions through the collecting mains 2, 3 and gas spaces 10 to maintain a uniform temperature in the gas spaces. The blades of the fan (see Group XXVI) are arranged so that their pitches may be adjusted through a range of positive positions, a neutral position and a range of negative positions so that the fan may be adjusted to provide any required quantitative flow in either direction or to produce a static condition, the adjustment being controlled by any suitable hydraulic, pneumatic, electrical or mechanical means, which may be operated automatically by timing means. A damper 51 is provided at the junction of the offtake main 20 with the off-take duct and is arranged to seal off one branch of the off-take duct according to the direction of circulation of the cooled gases. In a modification the fan is of the fixed-blade uni-directional type and is mounted in the gas duct for bodily adjustment through 180 degrees in order to reverse its direction of thrust, quantitative control of the flow of circulated gases being achieved by varying the speed of the fan. Specification 278,012, [Class 55 (i)], also is referred to.
Patent GB-794616-A (GB)
Title: Insulating materials
IPC: H01B3/44
Filed: 1956-02-21
Abstract: An insulating composition for sheathing electric cables comprises a solid polyethylene having a molecular weight of at least 22,000 and at least 0.5 per cent, preferably up to 2 per cent, by weight of an oily liquid hydrocarbon mixture produced as a by-product in the mass polymerization of ethylene at elevated temperature and pressure in the presence of an oxygen catalyst. In examples, the liquid hydrocarbon, substantially free from oxygen, has 4-6 per cent non-conjugated ethylenic unsaturation, a density of substantially 0.80 and a viscosity of 3-4 centipoises at 25 DEG  C. and is mixed with polyethylene of 30,000 to 35,000 molecular weight.  Fillers, pigments, dyes, lubricants, stabilizers and antioxidants may also be included.
Patent GB-847698-A (GB)
Title: Belt grinding machines
IPC: B24B21/00
Filed: 1958-02-19
Abstract: 847,698. Grinding. MASCHINENBAU JONSDORF VEB. Feb. 19, 1958 [Feb. 22, 1957], No. 5379/58. Class 60. An abrasive belt 10 travels round pulleys 11, 12 and operates on workpiece 13 on a table 1. A presser beam 2 has a facing 3 of sponge rubber between which and the belt 10 is located an endless belt 4 passing round pulleys 5, 6. Flexible pads 7 are secured to the belt 4 and by adjustment of the latter the end of the padded part is brought into register with the end 13<SP>1</SP> of the workpiece. The pads comprise leather strips secured by rivets 9 to the belt 4, with the interposition of linen 8. The belt 4 may be of thin steel.
Patent GB-412890-A (GB)
Title: Suction device for removing cuttings in cylinder boring machines
IPC: B23Q11/00
Filed: 1934-02-19
Abstract: 412,890. Cylinder-boring machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Hall Manufacturing Co. ; 1602, Woodland Avenue, Toledo, Ohio, U.S.A.) Feb. 19, 1934, No. 5392. [Class 83 (iii).] A cylinder-boring machine has a housing for a boring-bar adapted to be secured in position for operation on a cylinder and suction means for conveying cuttings away from the cylinder through the upper end thereof. The boring- spindle 7 is carried in a bearing in the housing 5 and is driven by belt means 15 from a counter. shaft 14 which is connected through the gear box 13 to an electric motor 12. A fan 22 secured to the upper end of the motor spindle, draws the cuttings as they are produced, from the tools 11 along the passage 20 in the housing, to an outlet 23, or they may be driven through the outlet 24 by a separate suction device. A cover 18 is fitted around the opening between the machine housing and the work prior to the cutting operation.
Patent GB-954383-A (GB)
Title: Improvements in or relating to the transportation of tubes of synthetic organic thermoplastic material and the manufacture of tubular film therefrom
Inventor: BILD FREDERICK
IPC: B29C48/10
Filed: 1961-02-14
Abstract: 954,383. Manufacture of tubular films. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 12, 1962 [Feb. 14, 1961], No. 5446/61. Heading B5B. Resilient pliable tubing of a synthetic organic thermoplastic material having a wall thickness of more than 0.01 inch is transported by passing it continuously between nip rollers and the tubing is prevented from being wholly flattened at its edges where it passes through the nip by having two stationary probes within the tubing, which probes project through the nip at a position such that they give internal support to the tubing at the said edges, so that the tendency of the tubing to be creased at the edges is reduced. The operation may be a step in the manufacture of tubular film by a continuous process. As shown in Fig. 1, a tube 1 of isotactic polypropylene (solubility in normal heptane less than 2%) is melt extruded from a die 2 and passed through a sizing die 3 with water lubrication 4 supplied through the pipe 5. The water is removed by a vacuum device 6 having a ring seal 7 and pipe 8 for application of vacuum. The tube 1 is then passed between nip rollers 9, past infra-red heaters 10 which heat it to the orientation temperature, thereafter biaxially stretched and the tubular film 11 thereby produced flattened by guides 12 and hauled off by further nip rollers 13. A conduit 14 passing through the die 2 supplies a gas at somewhat above atmospheric pressure to assist sizing by the sizing die 3. A probe 15 attached to the die and having a conduit within it supplies a gas at superatmospheric pressure for inflation through the nip of the nip rollers 9. A solid probe 16 parallel with the probe 15 is also attached to the die. As shown in Fig. 2 the nip rollers 9 are provided with a steel core 17 covered with relatively hard rubber sections 18 and sponge rubber sections 19. The solid probe 16 projects through the nip at one edge of the tube 1 while the probe 15 having a conduit projects through the nip at the other edge of the tube. As shown in Fig. 3, both probes 20 at the edge of the tube 1 are solid and there is provided in addition to them a hollow probe 21 through which an inflating gas may be passed, as described in Specification 787,479. The prevention of sharp creases and consequent weaknesses at the edges of the flattened tubular film permits the tubular " lay flat film " produced to be slit at one edge only and the slit film to be opened out to give double width " flat film."
Patent GB-1440149-A (GB)
Title: Catalysts comprising phosphorus vanadium and oxygen
IPC: C07B61/00
Filed: 1974-02-06
Abstract: 1440149 V-P-O catalytic compound MONSANTO CO 6 Feb 1974 [7 Feb 1973] 05447/74 Heading C1A [Also in Divisions B1 and C2] A catalyst composition comprises phosphorus and vanadium in combination with oxygen, wherein the P/V atomic ratio is 1 : 2 to 2 : 1, more than 50% atom of the vanadium is in the tetravalent state and the composition is in the form of structures of a porosity of at least 35%. The composition may be formed by contacting vanadium and phosphorus compounds under conditions giving more than 50 atom per cent of vanadium in the tetravalent state; recovering a catalyst precursor and forming it into structures; calcining to give a precatalyst containing not more than 80% atom of the vanadium in the pentavalent state and then passing a saturated hydrocarbon admixed with a free oxygencontaining gas through the precatalyst at elevated temperature. In an example 2% of graphite is added to the prepared catalyst before tabletting.
Patent GB-666319-A (GB)
Title: Improvements in contact lenses
IPC: G02C7/04
Filed: 1948-02-24
Abstract: 666,319. Contact lenses. FEINBLOOM, W. Feb. 24, 1948 [Dec. 15, 1945], No. 5466/48. Class 97 (i). A contact lens is formed of synthetic resin and has a conical portion integral with the seleral section, the inner surface of the lens being free of discon. tinuities and the innei surface of the seleral sec. tion having a portion of conical configuration sur. rounding the conical sec. tion. As shown in Fig. 3, the lens comprises a coni. cal section 1 and a seleral section consisting of a conical portion 2 and a seleral flange 3 which is partly spherical. Such a lens may be formed from a blank, Fig. 2a, which is moulded to the shape shown. To form the lens shown in Fig. 3, the blank is cut along the line c; by cutting along any one of the other lines a, b, contact lenses of other shape may be produced.
Patent GB-415411-A (GB)
Title: Improvements in high vacuum cathode ray tubes
IPC: H01J29/02
Filed: 1933-02-22
Abstract: 415,411. Cathode - ray tubes. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. Feb. 22, 1933, No. 5468. Convention date, Feb. 23, 1932. Drawings to Specification. [Class 39 (i).] A continuous potential gradient is produced on the inner walls of a high-vacuum Braun tube by an ohmic voltage drop. The ohmic drop may effect a correction of the field distribution inside the tube or may be made to correspond to this field distribution to prevent field distortions due to wall charges. The inner surface of the walls is made conductive by a chemical process or by a thin deposit of metal such as silver, and current is passed over them between two leads to produce the ohmic drop. The conducting layer may be of spiral form. In a modification, the walls are of glass made conducting by increasing the alkali content, for example, lead glass containing oxides of silicon, potassium and lead in the percentages 29.28, 4 and 67.68 respectively, or French bottle glass containing oxides of aluminium, silicon, sodium, potassium, magnesium, calcium and lead in the percentages 1.45, 70.05, 14.32, 1.44, .10, 10.33 and 2.70 respectively. More than two leads to the conducting layer may be provided. The leads may be connected to electrodes of the tube or to a separate source of voltage. In tubes using the luminous screen as an attraction anode, the leads are connected to this screen and to the anode diaphragm or cathode. In tubes with a field-free space between the anode and the screen, the ohmic drop surrounds the space between the anode and the deflecting plates or heated filament. Specification 406,009 is referred to.
Patent GB-472378-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/02
Filed: 1937-02-24
Abstract: 472,378. Vacuum cleaners. JACKSON, L. MELLERSH-. (Quadrex Corporation) Feb. 24, 1937, No. 5502. [Class 8 (i)] A flexible nozzle for vacuum cleaners is constructed with one or more flat springs 5 connecting the rigid mouth portion 7 with the socket 1 which is connected to the suction side of the cleaner. The spring where it is secured to the socket by rivets or welding is given a cylindrical form and may be supported at this point by an inner ring 13. An outer jacket 8 provides an air-tight connection between the mouth portion and the socket.
Patent GB-564370-A (GB)
Title: Improvements relating to sealing devices between rotating and non-rotating members
IPC: F16J15/38
Filed: 1943-04-06
Abstract: 564,370. Stuffing - box substitutes. WILKINSON, F. C. W., and CRANE PACKING, Ltd. April 6, 1943, No. 5518. [Class 122 (v)] A packing between a wheel 1 and axle bearing 3, or other relatively rotating members, comprises a sealing ring 5 pressed resiliently against the wheel and supported floatingly in an annular housing 4 by a resilient ring or rings 9, 10 having flexible flanges 12 engaging the housing walls in fluidtight manner. Axial pressure is provided by spaced springs 6 and rotation of the sealing ring is prevented by a pin carried by the housing engaging a recess in the back of the ring.
Patent GB-106298-A (GB)
Title: Improvements in or relating to Lasting Machines.
IPC: A43D21/12
Filed: 1916-04-17
Abstract: 106,298. British United Shoe Machincry Co., (United Shoe Machinery Co.). April 17, 1916. Lasting.-In a lasting-machine, particularly one of the bed type as described in Specification 22,630/08, a closing movement of the heel wipers having predetermined differences at the two sides of the heel is obtained automatically by a particular construction and arrangement of the wiper-operating means. The wipers each consist of three parts and are operated by links 130, a cross-bar 132, and a plunger 134 from a lever 135, the closing movement being obtained by cam slots in the wipers engaged by studs which are stationary in a plate 136. This plate, the edge of which is curved about a centre located substantially at the rear end face of the shoe, has a rigid projecting arm 140 carrying a stud 141 to which are rigidly secured upper and lower arms 144, 142; the arm 144 carries a locking bolt 145 adapted to engage holes 146 in the arm 140, while the arm 142 is slotted at 143 to receive a stud 148 on a sliding bar 150, which is formed with a transverse slot to receive a stud 152 rising from the operating-lever 135. When the stud 145 is adjusted so that the slot 143 is out of alinement with the path of the bar 150. the stud 148 will force the arms 144, 142, 140 laterally and turn the plate 136 and wipers toward one side of the machine as an incident to the normal operation of the wipers by their lever 135. The end wipers 160 are adjustable relatively to the adjacent wipers 162 by movable bars 164 carrying studs 165 which engage slots in a transverse bar 166; this bar is adjusted by means of a slotted link 170 pivoted to the bar and engaging a fixed stud 172, the length of the adjusting movement being made variable bv a stop-screw 174. Specification 13,947/12 also is refened to.
Patent GB-269292-A (GB)
Title: A pump for liquids
IPC: F04B9/14
Filed: 1926-03-01
Abstract: 269,292. Dunlop Rubber Co., Ltd., and Trobridge, G. W. March 1, 1926. Stroke, varying; single-acting piston pumps.-The plunger a carries an adjustable collar n which engages stops G, h at the ends of the strokes. The stop h is connected by rods i to a block m adjustably mounted on a scale on the pump barrel b, so that by moving the block the plunger stroke is varied. The delivery valve e is carried by a member e<1> screwed to the pump chamber c.
Patent GB-1139063-A (GB)
Title: Improvements in photographic reproduction processes
Inventor: RAK ANDREW WITOLD
IPC: G03C5/18
Filed: 1965-02-10
Abstract: 1,139,063. Stabilization processing. KODAK Ltd. Feb.1O, 1966 [Feb.1O, 1965], No.5712/65. Heading G2C. In a method of processing of an exposed silver halide emulsion involving stabilization of said emulsion there is applied to the emulsion layer during processing a solution containing a compound of formula: - in which R and R' are H, alkyl, aryl or aralkyl. The amino-triazole may be in a stabilizer solution containing a stabilizing agent e.g. ammonium thiocyanate, a developer or an activator solution.
Patent GB-124595-A (GB)
Title: Improvements in or relating to Resilient Work Supports for Leather-working and other Machines.
IPC: C14B1/00
Filed: 1918-04-05
Abstract: 124,595. Jones, A. Seymour-, and Turner Tanning Machinery Co. April 5, 1918. Overlays, underlays, and makeready arrangements, blankets, impression surfaces, and the like. - The outer layers 1, 3 of a work-supporting bed are composed of duck, canvas, or rubber, and enclose porous or cellular material 2, such as rubber sponge, which is attached to the covering by vulcanizing. Fluid pressure may also be used, the casing being sealed or provided with a valve 5; the pressure is maintained by a pump of the kind described in Specification 4681/07. [Class 76, Leather]. The top layer of the bed may be reinforced by a sheet or rubber, celluloid, or leather, or may be slightly vulcanized or rubber-coated. Eyelet holes 4 may be provided for fastening the bed in position. The bed may be used in a calico-printing machine. Specification 122,086. [Class 76, Leather] is also referred to.