baber/WOPTO huggingface dataset:
Patent GB-378594-A (GB)
Title: Improvements in or relating to presses for pressure moulding or other purposes
IPC: B30B15/00
Filed: 1931-06-22
Abstract: 378,594. Mechanical and hydraulic presses. WEBSTER & CO., Ltd., T., Diamine Works, Tariff Street, Liverpool, and TETTMAR, G. W., Diamine House, Middle Lane, Hornsey, London. June 22, 1931, No. 17993. Addition to 371,154. [Class 87 (ii).] The press described in the parent Specification is provided with a ring member 9, movable angularly round the plunger 2, and provided with abutments 10 which, in one position, contact with corresponding abutments 11 on the yoke 3 to hold the platen 1 in its lower position, while in another position the abutments 10 engage holes 15 in the yoke 3 so that the plunger 2 may be withdrawn. The ring member 9 is rotated by a handle 14 and stops 13, 13a are provided to limit the angular movement. Alternatively the ring 9 may be carried by the yoke 3 and the abutments 11 provided on the platen 1 or the abutments 11 may be dispensed with.
Patent GB-295804-A (GB)
Title: Improvements in and relating to the drying of leather
IPC: C14C3/10
Filed: 1927-07-07
Abstract: 295,804. Walsh, V. G. July 7, 1927. Vegetable tanning; excess of tanning agents, removing.-Vegetable tanned leather is treated with substances having a high adsorptive capacity for the tan so as to remove excess from the surface layer of the leather and avoid deleterious oxidation thereof in the process of drying. Aluminium hydroxide is a suitable substance and may be employed in a vegetable tan solution containing alum. As an example, a quebracho extract is saturated with alum and sodium hydroxide is added till the solution is only faintly acid, causing a precipitate of hydroxide. Borax and gum gattau and, if desired, glucose are added and the leather taken from the tan pits is suspended in or drummed in the liquor. Instead of aluminium hydroxide, the phosphate may be used or alum may be replaced by acid potassium tartrate.
Patent GB-573872-A (GB)
Title: Process for the preparation of ª‰-nitroethyl ethers
Filed: 1942-02-02
Abstract: b -Nitroethylethers are prepared by reacting nitroethylene with alcohols.  Preferably, the nitroethylene is prepared in situ by the process of Specification 572,803 by treatment of 1 : 2-dinitroethane or b -nitroethylnitrate with an alcohol.  In examples, dinitroethane or b -nitroethylnitrate is heated with methyl, ethyl, benzyl, n-propyl, isopropyl, n-butyl and amyl alcohols, the corresponding b -nitroethylethers being produced directly together with nitrites. The latter and excess alcohols are removed by distillation.
Patent GB-200830-A (GB)
Title: Coil junction casings for electric cables
IPC: H02G15/14
Filed: 1923-07-12
Abstract: 200,830. Felten & Guilleaume Carlswerk Akt.-Ges. July 12, 1922, [Convention date]. Articulated pipes.-A joint casing for electric cables is formed as a flexible tube of which the diameter in the centre corresponds to the diameter of the coil and which tapers towards the ends to the circumference of the cable c. The tube is formed of articulated members as shown in Figs. 1 and 2<a>. Elements a<2> engaging the rounded surfaces of elements a are at one end retained upon the latter by screwed rings e and at the other end are screwed over an adjacent element a.
Patent GB-753322-A (GB)
Title: Styrene copolymer emulsions
Inventor: BONDY CLEMENS
IPC: C08F2/22
Filed: 1953-06-30
Abstract: Styrene is copolymerized with at least two polymerizable esters of ethylenic carboxylic acids of 3 to 5 carbon atoms and having at least two hydrogen atoms attached to the ethylenically linked carbon atoms, the copolymerization being in emulsion in an aqueous solution of one or more hydrophilic colloids and in the presence of one or more plasticizers, one or more free radical catalysts and one or more surface-active agents.  Esters specified are the alkyl and substituted alkyl esters of acrylic, methacrylic, crotonic, 2-chloroacrylic and maleic acids, as exemplified by methyl and butyl methacrylates and di-(ethyl hexyl) maleate.  The colloids may be the alkali metal and ammonium salts of polyacrylic and polymethacrylic acids, of styrene copolymers with acrylic and/or methacrylic acids, of copolymers of acrylic and/or methacrylic acid esters with acrylic and/or methacrylic acids, and of styrene-maleic acid copolymers; the water soluble ethers of cellulose and starch; degraded starch; dextrin; pectin; salts of carboxy methyl cellulose; and gums such as arabic and tragacanth. Plasticizers listed are chlorinated diphenyls; tricresyl and tributyl phosphates; di-butyl, dioctyl, di-butoxy-ethyl and butyl benzyl phthalates and tri-ethyleneglycol hexoate. Catalysts disclosed are hydrogen, benzoyl and di-t.-butyl peroxides, cumene hydroperoxide and potassium persulphate.  A number of conventional surface-active agents are listed.  Molecular weight regulators such as carbon tetrachloride, chloroform, bromoform and hexachloroethane may be used and the rate of radical formation of the catalyst may be adjusted with compounds such as ferrous compounds, hydrazine hydrate, sulphoxylates, sulphites, cane sugar, glucose, dodecyl mercaptan, diisopropyl xanthogen disulphide, mercaptobenzthiazyl disulphide, mercaptobenzthiazol, zinc isopropyl zanthate, cyclohexyl amine, ammonium diethyl dithiocarbamate and formic acid or its salts.  Other materials included in the examples are hydroquinone and ammonia.  The reaction mixture may be replenished by continuous or intermittent addition of any or all of the components as is illustrated in the examples.  The products are of particle size less than 2 microns and are useful in emulsion paints, coating compositions, adhesives and in impregnants for porous materials.
Patent GB-739914-A (GB)
Title: Improvements relating to face commutators
Inventor: CAMPRUBI BARTHOLOMEW
IPC: H01R43/08
Filed: 1953-06-30
Abstract: 739,914. Dynamo electric machines. HOOVER,Ltd. June 24, 1954 [June 30, 1953], No. 18164/53. Addition to 738,823. Class 35. [Also in Group XXII] In a radial face-type commutater made by the method described in the parent Specification, each segment is formed with a slot 15, for the connecting wire, provided wholly to the rear of the contact face so as not to interfere with the contact surface. Each segment may have two anchoring pins 11, 15 embedded in insulating material 13. Alternatively, each segment may have a single anchoring pin 12 which is bent outwardly so that its end protrudes out of the periphery of the insulation; the ond is slotted to receive the connecting wire.
Patent GB-1469752-A (GB)
Title: Tunnelling machines
IPC: E21D9/11
Filed: 1973-04-16
Abstract: 1469752 Tunnelling machines SIR ROBERT McALPINE & SONS Ltd 2 April 1974 [16 April 1973] 18253/73 Heading E1F A cutting head 13 for a tunnelling machine comprises a bulkhead 22 having four radial slots 56 through which spoil passes during cutting, each slot having two respective cutting blades 57 pivotally mounted at opposed edges for pivotal movement about radial axes between a first position where one blade is inclined towards the tunnel face and the other blade is inclined away from the tunnel face for cutting in one direction of rotation, a second position where both blades lie in the plane of the bulkhead for sealing off the slot, and a third position where the other blade is inclined towards the tunnel face and the one blade is inclined away from the tunnel face for cutting in the other direction of rotation. The cutting blades 57 have teeth 58 and are pivoted by hydraulic rams. Drag picks 21 are attached to the head when cutting into soft ground and roller cutters are attached to the head when cutting into hard ground.
Patent GB-943801-A (GB)
Title: Improvements in or relating to coil winding device for helical filament sliding clasp fasteners
IPC: B29C53/12
Filed: 1960-05-24
Abstract: 943,801. Moulding helical slide-fastener elements. W. E. HEILMANN. May 24, 1960 [May 25, 1959], No. 18281/60. Heading B5A. Apparatus for moulding a helical slidefastener element, e.g. of nylon thread, comprises a coil-winding device in which a rotatable thread guide 7a, 7b which rotates a thread feed drum 6 is provided on the side facing a stationary winding mandrel 2 with rotatable female and male stamping tools 15a, 15b through which the thread passes one of which is actuated either directly or through levers or push rods by a stationary cam 18 to stamp the coupling elements against the other stamping tool. Nylon thread passes from drum 6 through eyelets 13, 14, between tools 15a, 15b which are secured to the front of guide 7a and rotate therewith, and then slides off a cone 5 in mandrel holder 4 on to mandrel 2; the turns displacing themselves to a device 16 which gauges the pitch and stabilizes it by heating. A cam 18 on a ring 19 is engaged once on every rotation of the stamping device by a roller 22, and causes tool 15a to move against tool 15b through two double lever elements 20a, 21a to form a coupling element on each turn of the helix which may be of oval or rectangular cross-section. A further coupling element may be formed diametrically opposite the first one.
Patent GB-203456-A (GB)
Title: Improved ventilation fitting
IPC: B63J2/10
Filed: 1922-07-04
Abstract: 203,456. Stewart, A. W. July 4, 1922. Valves and valve apparatus.-Each ventilation opening into a room or the like is formed as a ball-and-socket valve, the hollow ball 3 having opposite poles cut away and joined by a tube 4. At the inner end of the tube 4 is fitted a spider 7 carrying a handle 6 by which the ball 3 may be adjusted within the socket 5 to direct the air in any direction within the range of a hemisphere or to close entirely the outlet as shown in Fig. 1.
Patent GB-694400-A (GB)
Title: Combination locks
Inventor: BEHRENS HERBERT C
IPC: E05B37/08
Filed: 1951-08-02
Abstract: 694,400. Permutation locks. DIEBOLD, Inc. Aug. 2,1951, No. 18306/51. Class 44 A permutation lock comprises a series of tumblers 22, 22<SP>1</SP>, 22<SP>11</SP> rotatably mounted on a tubular extension 14, Fig. 5, of the base wall 15 of the casing 11. A rotatable and axially movable spindle 16 mounted in the extension 14 carries a disc member 23 at the inner end and an operating knob 19 having a dial 20 at the outer end. The spindle is maintained in its outer position by a spring 50 acting against the base of the knob 19. The disc 23 has an inner part 23g having an entirely cylindrical periphery and an outer part 23f, also generally cylindrical but formed with a radial notch 23a. Each tumbler has a radial notch 37 in the edge, the notches being aligned, when the lock is correctly set, with a projection 35<SP>1</SP> on the rear of the bolt 35 so that the bolt may be retracted. The tumblers are set by rotation of the knob 19 transmitted through a pin (not shown) projecting from the face of the disc 23 and adapted to displace a lever one edge of which engages a quadrant slot on the tumbler 22. A pin on this tumbler displaces the next and so on. When the tumblers have been correctly set the knob is turned to a position in which the notch 23a lies adjacent a tongue 38b on a spring loaded lever 38 pivoted to the bolt, the tongue being supported on the cylindrical part 23g of the disc. If the spindle 16 is then pressed in against the spring 50 by the knob 19, the disc moves inwards and allows the tongue to fall into the notch 23a the tongue retaining the spindle in the inner position. Rotation of the knob then withdraws the bolt. When the spindle is in the inner position, the drive connection between the disc 23 and the tumblers is broken so that picking by feeling is prevented. Rotation of the disc in the other direction causes the tongue 38b to be cammed out of the notch 23a and to ride up on to the cylindrical surface 23f, so that the spindle may return to the outer position under the spring 50. The tumblers are scattered by rotation of the knob.
Patent GB-244013-A (GB)
Title: Improvements in striking appliances for use in playing skittles and like games
IPC: A63D7/00
Filed: 1925-07-20
Abstract: 244,013. Jee, S. July 20, 1925. Parlour games.-A striking appliance for use in playing skittle and like games, comprises a ball d connected to a handle a by a length of elastic cord c interposed between two lengths of inelastic cord b.
Patent GB-422450-A (GB)
Title: Method and apparatus for removing oil from air
IPC: B01D45/08
Filed: 1934-06-22
Abstract: 422,450. Centrifugal blowers. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm. June 22, 1934, No. 18508. Convention date, June 22, 1933. [Class 23] [See also Group XIII] Oil is separated from air by the passage of the air under pressure through a narrow slit between two relatively movable elements. The apparatus is used, for example, to cleanse the air of a pump discharge from atomised lubricant. The pump has a rotor 1 mounted on an eccentric 17 on the pump shaft and the ring 15 of the rotor moves in the annular chamber 16. The air discharge from the centre of the rotor impinges on the rotating disc 2 and the large oil particles are thrown to the casing and pass to the oil bath 3. The central exhaust port 5 has a normally closed disc valve 6 in a chamber 8 which is also provided with a normally open valve 10 in its lower part. The oil laden air flows from the rotor into the casing and closes the valve 10, and the pressure rises until the valve 6 is opened and a narrow slit is formed between the valve disc and its seating. The air passes through this slit and oil particles are precipitated in the chamber 8. The cleansed air passes through the filter screen 12 to the outlet 13, and when the pump stops, the valve 10 opens so that the precipitated oil passes from the chamber 8 to the oil bath 3.
Patent GB-885424-A (GB)
Title: Antibacterial agents
IPC: C07D499/00
Filed: 1960-05-25
Abstract: Relates to 6,61-(Diglycollamido)-bis-penicillanic acid and its non-toxic salts, particularly its potassium salt.  The acid may be prepared by reacting 6-aminopenicillanic acid or a neutral salt thereof with an acid chloride having the formula <FORM:0885424/IV (b)/1> or with its functional equivalent as an acylating agent for a primary amino group such as the corresponding bromide or acid anhydride or mixed anhydrides with other carboxylic acids.
Patent GB-1237127-A (GB)
Title: Composite roofing material with "breathing" layer
Inventor: REID DENIS HOWARD
IPC: E04D5/12
Filed: 1968-04-19
Abstract: 1,237,127. Laminated roofing material. D. ANDERSON & SON Ltd. 18 April, 1969 [19 April, 1968], No. 18595/68. Heading B5N. A roofing material consists of a water resistant layer 1 secured to a layer of heat insulating material 2, in which the water resistant layer is provided with a number of perforations which are each formed in a projection on the surface of the layer remote from the heat insulating material so that the layer acts as a breathing layer whereby any water vapour present underneath or in the insulating material may pass through the water resistant layer, but the passage of rain or snow down through the layer is resisted. The water resistant material may have a fibrous, asbestos or glass tissue base, or may comprise a plastics film, waterproof paper or a bitumen impregnated roofing material, all of which may incorporate a woven reinforcement. The insulating material may be of glass fibres, polyurethane, wood wool or strawboard.
Patent GB-1422908-A (GB)
Title: Grinding machines
IPC: B23Q1/64
Filed: 1974-04-29
Abstract: 1422908 Grinding CONE-BLANCHARD MACHINE CO 29 April 1974 [2 May 1973] 18596/74 Heading B3D A machine for grinding a workpiece 22 a grinding tool 24 rotatable about a vertical axis 34, comprises first and second spaced apart parallel rail-like slide means 14, 16 on a base 10, table means 12 for supporting the workpiece on a surface horizontal and perpendicular to the axis 34 and supported on the slide means for movement between load and grind locations, and retractable lifting means 40 for selectively lifting said table means from the first slide means at the grind location to thereby rotate the table means upward about the second slide means to offset the table surface selectively from the axis. The surface for supporting the workpieces 22 may consist of a magnetic chuck 18 rotatably driven about an axis 20 normally parallel with the axis 34 of a spindle 32 which carries the grinding wheel and is mounted in a head for vertical movement on a column 26. The second slide means 16 has a circular cross-section and engages an internal cylindrical surface 38 on the table 12 to permit the tilting of the table about a centre 42. The first slide means 14 is flat and engages a similar surface 36 on the table, the surface having a recess for receiving a pair of oppositely inclined wedge members 44, 46. Wedge member 46 is longitudinally adjustable by a lead screw 58 to cause transverse movement of the wedge member 44 so as to tilt the table about the centre 42, the mating surfaces of the wedge members being rounded. In use, the workpieces 22 are placed on the magnetic chuck at the load location and the table moved to the grind location. For rough grinding, the wedges are adjusted to tilt the table so that axis 20 is slightly offset to axis 34. For finish grinding, the wedges are retracted so that the axes 20, 34 are parallel. The lead screw may be operated manually or by a motor, or the lifting of the table may be effected hydraulically or by a cam.
Patent GB-285720-A (GB)
Title: An appliance for preventing the spread of tuberculosis
IPC: A61J19/06
Filed: 1927-07-13
Abstract: 285,720. Koester, F., and Rhode, J. May 21, 1927, [Convention date]. Spittoons.-A device for use by tubercular patients has compartments h, i for sheets of impregnated paper, and a slot g through which used sheets are dropped into a bag l suspended by cords from knobs m, n.
Patent GB-665912-A (GB)
Title: Process for deodorising paint
IPC: C09D7/63
Filed: 1950-03-02
Abstract: A concentrated base for adding to paints comprises vanillin dissolved in turpentine and white spirit or in linseed oil and white spirit. One part of vanillin to 2000 parts of paint will mask the smell of the paint.
Patent GB-1089381-A (GB)
Title: Improvements relating to mining installations
Inventor: YARMAK JULIUS
IPC: E21C25/56
Filed: 1964-05-05
Abstract: 1,089,381. Mineral-mining conveyers. COAL INDUSTRY (PATENTS) Ltd. May 4, 1965 [May 5, 1964], No. 18671/64. Heading B8A. [Also in Division E1] A machine for longwall mining comprises an endless chain conveyer with cutting blades 15 and loading flights 14 running along a lower trough (16) connected to supports comprising a series of telescopic posts each extending between a floor bar and a roof bar slidably supported by flanking frames. An upper run of the conveyer is guided along an inverted upper trough (17) also connected to the supports vertically above the lower trough. Each flanking frame consists of roof and floor members separated by hydraulic props (34) and is rigidly connected to the next frame on the other side of the trough support, the two frames being able to " walk " under the action of hydraulic pistons and cylinders towards the coal face and advance the conveyer. The conveyer is curved through more than 90 degrees and is supported on the inside of the curve by an endless roller chain (26) contained in guide bars 31 on the troughs, rollers on the chain engaging the ends of scraper bars 12 on the conveyer chain. A canopy (43) is hinged to and advanced with the machine to provide a protected gallery.
Patent GB-948708-A (GB)
Title: Superconducting wire and magnets and methods of making the same
IPC: H01F6/02
Filed: 1962-05-15
Abstract: A superconding material comprises an alloy consisting essentially of 10-90 atom per cent zirconium and the remainder niobium which is cold worked without subsequent heat treatment into wire for winding into a current-carrying coil.  An atom percentage of 20-40 Zr is preferred, and 10-50 is particularly satisfactory.
Patent GB-459240-A (GB)
Title: Improvements in sharpening appliances for safety-razor blades
IPC: B24D15/08
Filed: 1935-07-01
Abstract: 459,240. Sharpening razor blades. DANTE, P., 4, Via Fiume, Brescia, Italy. July 1, 1935, No. 18716. [Class 60] A device for sharpening safety razor blades comprises a frame 1 having a handle 2 and rotatably carrying an abrasive roller 4 geared at 5 to a toothed wheel 6 secured to a spindle 7 rotatable in the frame, the wheel 6 carrying a driving handle 8 and a pin 9. The pin 9 engages a cam 10 on the frame 1, being held thereagainst by a spring 11, so that on rotation of the spindle 7 it also is reciprocated axially. On the spindle is mounted a blade-holder 13 formed with parts 13<a> pressed adjustably on the spindle by bolts and nuts 15, the blade 16 being located on the holder by pins and clamped thereon by a cover plate 18 and nut 19. The spindle 7 has thereon a screw-thread 20 engaged by threads 22 cut in a pin 21, which is mounted in the holder 13 and is adjustable for wear by a nut 23 ; rotation of the reciprocating spindle 7 thus also causes the holder 13, when arrested by contact of the blade with the roller 4, to move along the spindle. The blade is reversed by reversal of the rotation of the wheel 6, and its pressure on the roller 4 is adjusted by adjustment of the nuts 15. The spindle 7 may have intersecting right- and left-handed threads, the holder having a projection which moves in the threads so that the holder reciprocates during rotation of the spindle in one direction ; the roller 4 may be belt-driven, and the device may be mounted on a table by a clamp.
Patent GB-1075234-A (GB)
Title: Improvements in or relating to the processing of natural rubber
Inventor: SEKHAR BALACHANDRA CHAKKINGAL
IPC: C08L7/00
Filed: 1964-05-05
Abstract: A masterbatch comprising a wet coagulum of natural or synthetic rubber latex having a compatible oil dispersed therein is milled with wet natural rubber in the form of a coagulum or a solid mass until the rubber crumbles.  The masterbatch may contain up to 90% by weight of the oil.  The final composition may contain from 3 to 40% by weight of oil.  Oils specified are processing and extending oils and palm oil.
Patent GB-1338636-A (GB)
Title: High frequency directional apparatus
IPC: H03B9/12
Filed: 1971-06-03
Abstract: 1338636 Aerials; semi-conductor oscillator circuits WESTERN ELECTRIC CO Inc 3 June 1971 [9 June 1970] 18742/71 Headings H4A and H3T A linear array is constituted by radiators 11 to 14, the first of which is fed by an R.F. source 20 of angular frequency #, and the others of which are fed by respective oscillators 21 to 23 which have natural frequencies different from # (e.g., # + ##) but are lockable to that frequency. Means are provided whereby a locking signal for each oscillator is derived from the signal fed to the radiator preceding the radiator fed by said oscillator. As described, each radiator is fed through a respective circulator 25, 27, 29, 31 and a proportion of the signal fed to the radiators 11, 12, 13 is sampled by means of respective directional couplers 26, 28, 30 and is applied through the circulators 27, 29, 31 as a locking signal to the oscillators 21, 22, 23. A phase difference # between successive radiators, which determines the direction of the wavefront from the array, is dependent upon the bias current I(#+##) to the oscillators 21, 22, 23. Scanning may be accomplished either by varying said bias current or by varying the frequency control current I# to the R.F. source 20. If a greater range of phase difference between adjacent radiators than that obtainable from one lockable oscillator is required, two lockable oscillators with their associated circulators in series may be provided (Fig. 2A, not shown). A lockable oscillator may comprise an IMPATT diode 35, Fig. 4, which is biased into its negative resistance region by a source 34 having a decoupling capacitor 39. An inductor 36 forms an oscillatory circuit with the capacitance of the diode. The load is represented by a resistor 37 which is transformed by a decoupling capacitor 38 to match the negative resistance of the diode.