baber/WOPTO huggingface dataset:
Patent GB-767635-A (GB)
Title: Improvements in apparatus for trimming coated sheet material
IPC: B29C37/02
Filed: 1954-12-30
Abstract: 767,635. Coating webs. UNITED STATES RUBBER CO. Dec. 30, 1954 [Feb. 3, 1954], No. 37633/54. Class 140. A trimmer for an advancing web of laminated sheet material having an overhanging edge of one material comprises means for supporting a carriage for movement along a path at an angle to the line of juncture of two materials in the laminate a wheel on the carriage positionable to roll along the juncture, the wheel being canted in a direction to roll toward the material having the lesser coefficient of friction with the wheel, means urging the carriage in a direction to position the wheel on the material having the greater coefficient of friction with the wheel and cutting means on the carriage to cut the circle. The material comprising a coating C on a base F after leaving calendaring rolls 10, 11, passes over two rolls 14, 19 connected by a carriage to a trimming knife 30. The roller 14 is maintained in contact with the juncture of the coating and base by mounting it on a shaft 17 and at an angle to the edge, the angle being adjustable by a lever 32 pivoted on the shaft 17 and engaging a slot in the shaft. The lever 32 contacts a nut 35 screwed on the shaft 17, the nut being adjusted to vary the angle of the rollers. The roller 14 is maintained along the edge by a further roller 19 on the other end of the shaft 17 mounted at an angle to the edge. The surfaces of the rollers are of such material that the frictional drag of roller 19 on the base F is equivalent to the frictional drag of roller 14 when it is running on the edge partly in contact with the coating and with the base. The shaft 17 is supported in a mounting 18 secured by a coupling 21 to a sleeve 22 rotatable on a shaft 23 having rollers 24 to contact therewith. The sleeve supports a counterweight 28 for keeping rollers 14, 19 in contact with the material. The sleeve also supports the trimming knife 30 for cutting off the edge of coating. Should the juncture of the coating and base material vary the roller 14 moves under the control of the roller 19 until it is again running along the juncture; the sleeve 22 is also moved and corresponding movement given to the trimming knife which is maintained in position to cut off the edge of coating material. To cut the other edge of the web, the shaft 17 may be mounted to pivot on the mounting 18 so that the roller 14 runs along the other edge and the knife 30 may be mounted on the sleeve 22 to cut the other edge.
Patent GB-619745-A (GB)
Title: Improvements in and relating to apparatus for heating materials
IPC: F26B11/18
Filed: 1946-12-24
Abstract: 619,745. Drying granular materials. DUNFORD & ELLIOTT (SHEFFIELD), Ltd., and HEATHCOTE, C. W. Dec. 24, 1946, No. 37804. [Class 34(ii)] The peripheral wall of a rotary drum drier is formed by a series of inwardly curved plates 3 in overlapping spaced relation. Granular material, such as coffee beans, is introduced through the space between two plates at the top of the apparatus and, during drying, occupies a position indicated in the Figure due to the clockwise direction of rotation of the drum indicated by the arrow. A radiant heater 19 is mounted at the centre of the drum on a stationary shaft and is inclined as shown to suit the angle of rest of the material. After drying the material is discharged from the drum by reversing the direction of rotation so that the material slides down the curved plates 3 into a receptacle placed beneath the drum.
Patent GB-894653-A (GB)
Title: Needle assembly
IPC: B23B5/06
Filed: 1958-11-26
Abstract: 894,653. Hypodermic needles. COOKWAITE LABORATORIES Inc. Nov. 26, 1958 [Oct. 13, 1958], No. 38170/58. Class 81 (2). A hypodermic needle assembly comprises a needle 16 fixed in a hub 22, one end 18 of the needle extending from one side of the hub into a sleeve which extends from the same side of the hub and is closed by a disposable cap 14 and the other end of the needle extending from the other side of the hub and being protected by a needle guard 10, the hub being made of a material which deforms at the boiling-point of water. The needle guard has an aperture which is closed by a cotton plug 30 and is used for introducing a fluid for pre-sterilisation. The needle is fixed in the hub by a bend 20 or an enlarged, roughened or indented portion which is embedded in the hub. For use, the cap is removed, the hub sleeve is mounted on the end of an ampoule a diaphragm at the end of which is punctured by the needle. The ampoule and needle assembly are then placed in a syringe barrel so that the needle, hub and guard project. A shoulder on the hub engages a complementary shoulder in the barrel to retain the ampoule within the barrel. Specification 614,003 is referred to.
Patent GB-1080780-A (GB)
Title: Production of polymeric materials
IPC: C08J3/215
Filed: 1965-09-07
Abstract: Mineral-loaded polymeric materials are prepared by mixing together an aqueous suspension of a mineral filler the particles of which have been coated to render them hydrophobic and a solution of a hydrophobic polymer in a water-immiscible organic solvent, agitating the mixture until at least a substantial proportion of the filler enters the organic phase, separating the organic phase and removing solvent and water therefrom.  Specified polymers are polymers and copolymers of chloroprene, styrene/butadiene copolymers, butyl rubber, polybutadiene, polyisoprene, polyethylene, polypropylene, polyisobutylene, polyhexene-1, copolymers of ethylene with propylene or butene-1, copolymers of a -monoolefins with dicyclopentadiene, cyclopentadiene, norbornene derivatives, 2-alkyl-2,5-norbornadiene or 1,5-cyclooctadiene, and natural rubber.  Specified solvents are hexane, cyclohexane, trichloroethylene, tetrachloroethylene, orthodichloro-benzene, benzene, toluene and xylene.  Specified fillers are calcium carbonate, magnesium silicate and calcined kaolin.  The products may be vulcanized and used in the manufacture of shoe soles and heels, garden hoses and wire coverings.  In examples tetrachloroethylene solutions of ethylene/propylene/1,4-hexadiene copolymers are mixed with water and (1) magnesium silicate, (2) calcined kaolin and (3) calcium carbonate or calcined kaolin, and filled copolymers blended with naphthenic oil, zinc oxide, sulphur, tetramethylthiuram monosulphide and 2-mercaptobenzothiazole, and vulcanized.
Patent GB-1094562-A (GB)
Title: Improvements in and relating to evaporation apparatus
Inventor: PICK ULRICH
IPC: C23C14/24
Filed: 1964-03-24
Abstract: <PICT:1094562/C6-C7/1> The subject-matter of this Specification is contained in Specification 1,094,561 but the claims are concerned with the apparatus.
Patent GB-358374-A (GB)
Title: Improvements in power transmission mechanism
IPC: F16D37/00
Filed: 1930-12-19
Abstract: 358,374. Friction clutches. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Pulvis Akt.-Ges. ; Glarus, Switzerland.) Dec. 19, 1930, No. 38358. [Class 80 (ii).] In a clutch of the type comprising coaxially mounted driving and driven members and a mass of powdered, granular, or other finely divided material to transmit power between them, the driving member comprises one or more blades &c. of such a shape as to impart, when rotating about a vertical axis, both a peripheral and a lifting movement to such material, so as to distribute it along the inner surface of the driven drum or like member. The driving-member comprises a hub 1 secured to a vertical shaft 2 and formed with spaced annular flanges 3 which carry helicoidal blades 4. The driven member consists of a drum 5 rotatably mounted on the upper and lower ends of the hub 1 and provided with a cupshaped or conical receptacle closed by a cover 6, packing being provided at 7. The blades 4 are perforated at 8 to allow an automatic distribution of the powdered &c. material around the drum. The inner surface of the drum may be corrugated. The finely divided material 10 may consist of a powder, or small balls of steel &c., either alone or mixed with a small quantity of graphite &c.
Patent GB-917528-A (GB)
Title: Road surface heaters
Inventor: HOON FRANK
IPC: E01C19/08
Filed: 1958-11-28
Abstract: 917,528. Road surface heaters. MUNICIPAL APPLIANCES CO. Ltd. Nov. 30, 1959 [Nov. 28, 1958], No. 38384/58. Class 107. A mobile heater for use on  road making comprises a carriage 19, a lagged hood 16, into which a flame is directed from a burner 18, which can be rotated about a shaft 17 by a hand wheel 45 and locked in position relative to the shaft by a pin 25 which engages holes in flanges 23, 24 secured respectively to a sleeve 22 welded to the hood and to the shaft 17. With the open end of the hood uppermost containers of asphalt or asphalt-contaminated tools may be heated on a removable  tray 46 or the hood and burner may be inverted to act as a road surface heater or burner. The position of the hood relative to the ground is adjustable.
Patent GB-1282504-A (GB)
Title: Purification process for an iron-containing titaniferous material
Inventor: WILLIAMS FRANK RONALD
IPC: C22B34/12
Filed: 1969-07-31
Abstract: 1282504 Removing Fe from ilmenite BRITISH TITAN Ltd 22 July 1970 [31 July 1969] 38476/69 Headings C1A and C1N The iron in beach sand ilmenite is removed by oxidizing to Fe<SP>3+</SP> at 700-800 C., reducing to Fe<SP>2+</SP>, and leaching with aqueous HCl. The sand may have a particle size of 50-300 Á and may be oxidized in a fluidized bed or rotary kiln until at least 95% of the iron is Fe<SP>3+</SP>. Reduction may be effected at 650-850C. using H 2   steam or a hydrocarbon containing 1-4 carbon atoms (as described in Specifications 1,282,503 and 1,282,324 resp.) or CO or carbon. The HCl may have a concentration of 18-22% and a temperature of from 80 C. to b.pt. The sand may be agitated during leaching by passage of inert gas, e.g. N 2 , and the HCl may be passed upwardly through the sand. Leaching may be effected in 2 stages as described in Specification 1,282,506. The product may be digested in H 2 SO 4  to form a cake which is dissolved to form an aqueous solution of Ti sulphate and the solution is hydrolysed to TiO 2  which is calcined. Alternatively, it may be chlorinated to give TiCl 4  which is then oxidized in vapour phase to TiO 2 . The FeCl 2  may be converted into Fe oxide or Fe, and HCl recovered.
Patent GB-388700-A (GB)
Abstract: 388,700. Siphon discharge waterwaste-preventers. SIMPSON, M., Brambles, Upper Pennington, Lymington, Hampshire. Oct. 17, 1932, No. 28911. [Class 26.] In order to prevent the entrance of mosquitoes the bell 2 of a siphon-discharge waterwaste-preventer is provided with a cylindrical piston-like member 9 which is unitary with or integral with the bell and dimensioned so as to be a close sliding fit on the walls of an aperture 5 in the cover 4, which is a close fit upon the cistern shell 1 ; further, the operating lever 6 is pivoted upon the cover and has a hook 8 which is engaged with an eye 3 provided upon the bell. The aperture 5 may be machined or bushed with felt &c. 12, and the member 9 is provided with a shoulder 14 which abuts against the upper edge of the bush 12 on the aperture 5 when the bell is lowered.
Patent GB-1082770-A (GB)
Title: A method and apparatus for manufacturing tampons,particularly for feminine hygiene
IPC: A61F13/20
Filed: 1965-09-14
Abstract: 1,082,770. Apparatus for making tampons. DR. CARL HAHN KOMM GES. Sept. 14, 1965 [Sept. 14, 1964], No. 39201/65. Heading A5R. A tampon is made from a generally cylindrical blank by means of pressing apparatus comprising at least four pressing jaws movable radially with respect to a central axis, the jaws including jaws of a first kind each formed with a pressing edge parallel with the central axis and projecting towards the central axis, and jaws of a second kind disposed alternately between the jaws of the first kind and each formed with a pressing surface which is concave towards the central axis and part-cylindrical about a respective cylinder axis parallel to the central axis. The tampon is made by inserting the tampon blank between the jaws while they are retracted away from the central axis advancing all the jaws simultaneously towards the central axis until they are all spaced equally from the central axis by a distance approximately equal to the radius of the blank, advancing the jaws of the first kind until their presssing edges are spaced from the central axis each by a distance equal to the intended final radius of the tampon, and advancing the jaws of the second kind until they too are spaced from the central axis by a distance equal to the intended final radius of the tampon. As illustrated in Figure 1, wherein the simultaneous initial movement of all the jaws has been completed, this initial movement preferably continues until the jaws are all spaced from the central axis by a distance which is slightly less than the radius of the blank 1; Figures 2 and 3 (not shown) illustrate the pressing jaws of the apparatus after completion of the subsequent movement of the jaws of the first kind 2 and of the second kind 3, respectively. The tampon blank may, for example, consist of cotton wool fleece; as illustrated, the pressing jaws number eight in all. The apparatus also comprises actuating means, neither exemplified nor illustrated, for advancing the jaws in the above described manner.
Patent GB-965766-A (GB)
Title: Process of treating ammonia addition compounds
IPC: C01F1/00
Filed: 1960-11-16
Abstract: New substances consisting of metal, nitrogen, hydrogen, and halogen, e.g. with aluminium, magnesium, beyllium, titanium, zirconium, hafnium, thorium or uranium as the metal, in which the metal content is between that of the corresponding metal halides and that of the metal nitrides, the nitrogen content as determined by Kjeldahl's method is less than that of the corresponding nitride, and the halogen content as determinable by titration is less than 10% by weight, are prepared by heating addition compounds of the metal halide with ammonia in a gas free from oxygen, e.g. ammonia, and preferably under atmospheric pressure, to a temperature higher than that at which ammonium chloride is evolved, and other fission products in some cases, and are kept at this temperature until the products, described above, are obtained.  The treatment temperature may be above 400 DEG  C., preferably 600 DEG  to 1000 DEG  C.  A flowing gas atmosphere may be used which is recycled after leaving the treatment space.  Ammonia is released, by chemical reaction, from the ammonium halide sublimed and is supplied to the treatment space. Heating may be by high-frequency dielectric means or by an electrical gas discharge. The products may be added to the electrolyte used in fusion electrolysis for obtaining metals.ALSO:In a process for obtaining metals by fusion electrolysis, additives to the electrolyte comprise substances consisting of nitrogen, hydrogen, halogen and a metal, e.g. aluminium, magnesium, beryllium, titanium, zirconium, hafnium, thorium, or uranium, in which the metal content is between that of the corresponding metal nitride and halide, the nitrogen content is less than that of the corresponding metal nitride, and the halogen content is less than 10% by weight.  Preferably the substance contains the same metal as that being produced by electrolysis, e.g. in the production of Ti, Al, Be and Mg, but a different metal compound may be used in which case the metal obtained contains a small amount of this other metal, e.g. for the production of Ti base alloys containing one of the above additive metals.  The additives lower the temperature, increase the conductivity, and reduce the rate of evaporation of the melt.
Patent GB-865195-A (GB)
Title: Polymers derived from bis-phenols and unsaturated acetals
IPC: C08G8/30
Filed: 1957-12-19
Abstract: Resins are prepared from (1) a bisphenol having at least two reactive hydrogens ortho or para to a phenolic hydroxyl group, and (2) an unsaturated acetal of the formula:- <FORM:0865195/IV (a)/1> where R1 is H, Cl or methyl and R11 is H or methyl. The reaction is catalysed by acids or acid-reacting substances, e.g. toluene or benzene sulphonic acids, sulphuric acids, the chlorides of Al, Sn, Zn, Fe or Ti, and diethyl sulphate.  As the catalyst also functions as a curing agent and so may be neutralized for storage purposes, e.g. by Na or Ca carbonate or Na acetate, further acid being added later.  In particular when metals such as Fe or Al are used as fillers for the resins it is preferred that the curing agent be an acid-reacting substance, e.g. dialkyl sulphates of C1-4.  Bisphenols (1) specified are dihydroxydiphenyl methanes; 1,2 -bis-(p-hydroxyphenyl) ethane; 2 hydroxy-5 methyl phenyl-21-methyl41-hydroxy-phenyl methane; 2, 2-bis(p-hydroxyphenyl) propane; methylene bis-(3, 5-xylenols); butylidene bisphenols; thiobisphenols; thiobis-(m-tert.-butyl phenols); dithiobisphenols; bis-(para-hydroxyphenyl) sulphone; and bis (p-hydroxy-phenyl) benzene phosphonate.  Acetals (2) specified are those in which the unsaturated group is vinyl, propylene, isopropylene or 1-chlorovinyl; the acetals may be prepared from pentaecrythritol and the appropriate aldehyde.  These may also be present during the reaction, as modifiers, polyhydric aliphatic alcohols e.g. glycols (ethylene, propylene, butylene, pentamethylene, polyethylene or polypropylene), hexane-diol-1,6, 2-ethylhexanediol-1, 3, glycerol, 1, 2, 4 butane triol, trimethylol ethane or propane, and pentaecrythritol.  Other additives mentioned are wood flour, asbestos and diatomaceous earth.  Uses: shell moulds; grinding wheels; glass fibre laminates; potting; encapsulating; casting; moulding. Specification 865,196 is referred to.
Patent GB-1195302-A (GB)
Title: Spectrally Sensitized Silver Halide Emulsions
IPC: C09B23/06
Filed: 1967-08-30
Abstract: 1,195,302. Benzimidazole derivatives. FUJI SHASHIN FILM K.K. 30 Aug., 1967 [30 Aug., 1966], No. 39610/67. Heading C2C. [Also in Divisions C4 and G2] The compounds are prepared by reacting 1-carboxy methyl or 1 - # - carboxy propyl - 5,6 - dichloro - 3 - ethyl - 2-methyl benzimidazolium bromide and diphenyl formamidine.
Patent GB-1320578-A (GB)
Title: Boilers and heaters
IPC: F23N5/08
Filed: 1970-08-17
Abstract: 1320578 Gas heaters WEMAC 17 Aug 1970 [15 Aug 1969] 39624/70 Headings F4F and F4T To prevent unburnt gaseous fuel escaping from the flame ports 16r of the tubes 16 of the main burner assembly 13 of a boiler or heater, a flame sensor 25 causes the main valve 27 to open only when a multi-port pilot burner 21, which extends across the main burner tubes, is lit, and causes the valve 27 to close if the main burner flame is extinguished, gas flowing to the pilot burner only for a period predetermined by a timer 21a. As shown in Fig. 5 a signal from a thermostat (not shown) closes an operating control completing a circuit which causes pilot valve 20 to open, activates the mechanism M of burner 21a, and causes the electrical igniter 18 to ignite the gas. The flame sensor 25, which is sensitive to ultra-violet radiation, is activated by the pilot flame, and the amplified signal from it causes the valve 27 to open, allowing gas to flow to the main burner to be ignited by the pilot flame. After the predetermined time (for example 10 seconds) the timer causes the pilot vave 20 to close, and simultaneously opens the vaves 27a, 27b, allowing gas to flow to the auxiliary burner assemblies 12, 14, flame being propagated to them from the main burner assembly 13 by bridging nipples 32, 33. Due to its positioning, shown in Fig. 1, the sensor 25 senses the presence of either the main burner flame or the pilot flame, so that if after the pilot flame is extinguished the main flame should also be extinguished, the valve 27 is closed.
Patent GB-1470704-A (GB)
Title: Double-cylinder circular knitting machine
IPC: D04B15/14
Filed: 1974-09-12
Abstract: 1470704 Knitting machine; knitting DAITOSEIKI CO Ltd 12 Sept 1974 [18 Sept 1973] 39770/74 Headings DIC and D1K The upper needle cylinder 3 of a revolving cam box type double cylinder knitting machine may be racked in opposite directions relative to the lower cylinder 2, e.g. for cabling by means of respective racking devices 19, 26 mounted on a table 5 and engageable with ratchets 17, 18 fixed with respect to the cylinder 3, the racking devices being actuated by axially spaced respective cams 15, 16 which rotate with the upper cam cylinder 9 and being retractable to inoperative positions as by electromagnetically actuated latches 24, 31. The machine provided for needle transfer between the cylinders. To provide for racking by a single tooth pitch of ratchet 17 or 18 the associated electromagnet is deenergised and the pawl 22 or 29 is pressed by spring- 25 or 32-force into engagement with ratchet 17, 18, displacement of the latter occurring when the rotating cam 15, 16 engages the end of a lever 21, 28. Double racking requires a second revolution of the cam box.
Patent GB-1155744-A (GB)
Title: Cathodoluminescent Screens and Fabrication thereof
IPC: H01J9/22
Filed: 1966-09-06
Abstract: 1,155,744. Luminescent screens. SYLVANIA ELECTRIC PRODUCTS Inc. 6 Sept., 1966 [8 Sept., 1965], No. 39836/66. Heading C4S. [Also in Division H1] A process for the production of cathodeluminescent screens for cathode ray tubes comprises the steps of casting a viscous suspension containing phosphor particles 11 homogeneously dispersed in an organic binder 13 into a pliable self-supporting film 9 having at least one smooth surface, uniformly wetting the cast film 9 with an organic adhesive solution 23, laying and adhering the adhesive covered smooth surface of the film to the inner surface of the faceplate and finally heating the film and faceplate to volatilize the organic materials and adhere the phosphor particles to the inner surface of the faceplate. The process provides a phosphor coating of uniform thickness and density. When the cast film has one relatively rough surface a lacquer layer 21 may be deposited on this rough surface prior to the adhesive 23 and an electron permeable opaque metal layer 29 may also be deposited which, after the final heating, settles down to form, as desired, a rough or smooth reflective layer adhered to the back of the phosphor layer. The viscous suspension may include, homogenously dispersed in the organic binder, phosphor particles ranging in size from 0À5 to 40 microns or particles of at least two phosphor components having different bulk densities, and the cast film may be between 0À0006 and 0.001 inch thick. The casting of the viscous suspension may be repeated to provide a laminated film stack of homogeneously dispersed phosphors. Alternatively a number of viscous suspensions may be simultaneously cast to provide a pliable self-supporting film in which a number of contiguous strips, each containing a different homogeneously disposed phosphor, are arrayed in a repetitive red, green and blue arrangement. The film comprising the contiguous strips may be 0.0008 to 0.002 inch thick. The volatile organic adhesive 23 may be a 2% solution of polyvinyl alcohol or hydrolysed ethyl silicate and potassium silicate.