baber/WOPTO huggingface dataset:
Patent GB-1188852-A (GB)
Title: Heat Sensitive High Molecular Weight Resistor
IPC: H01C7/02
Filed: 1967-03-13
Abstract: 1,188,852. P.V.C. compositions. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 13 March, 1967 [23 March, 1966; 16 May, 1966], No. 11699/67. Heading C3P. [Also in Division H1] In the preparation of a plastic N.T.C. resistor an insulating thermoplastic resin has added thereto 6 to 50 wt. per cent of a conductive plasticizer which is an aromatic or heterocyclic quaternary ammonium perchlorate including a plasticizing radical. Preferred nuclei containing the quaternary nitrogen atom are pyridine, quinoline, imidazoline, or imidazole nuclei. It is stated that the following are suitable thermoplastic resins: polyvinyl chloride, polyvinyl acetate, polyvinylidene chloride, polyamides, cellulose esters, acrylate esters, acrylonitrilebutadiene copolymers, polyurethanes, acrylate ester-acrylonitrile copolymers, flexible cured epoxy resins, polyethylene, polypropylene, and ethylene-propylene copolymers. In each specific example the resin is polyvinylchloride and is mixed with dioctyl phthalate or pentaerythritol, an alkaline earth metal stearate, stearic acid and the quaternary ammonium perchlorate. Specific perchlorates are: (a) 1-[1-hydroxy-2-(4 : 6 - dinonanoyloxy - 1 : 3 : 5 - triazin - 2 - yloxy) ethyl]-2-methyl-3-benzyl-imidazolium perchlorate; (b) 1-[3-(2 : 4 - didecylcarboxyphenylamido) propyl] - 2 - ethyl - 3 - benzyl - imidazolium perchlorate; (c) (2-n-octylcarboxyphenyl) - amidoethyl - di - # - hydroxyethyl - ammonium perchlorate; (d) 1-[2-tris- (decylcarboxymethyl) ethylcarboxymethyl] - 2 - ethyl - 3 - # - hydroxyethyl - imidazolium perchlorate. In electrical tests the N.T.C. material is formed into 50 x 50 x 1 mm. sheets. To measure the impedance against temperature characteristic silver paint electrodes are formed at the centre of the major faces of a sheet. To measure the thermal stability of the impedance a composite structure is moulded in which the sheet of N.T.C. material is sandwiched between 30 x 30 mm. electrodes of 20 mesh copper net and 50 x 50 x 1 sheets of insulating polyvinyl chloride.
Patent GB-289064-A (GB)
Title: Improvements in filling plugs for absorption refrigerating apparatus
IPC: F25B41/00
Filed: 1928-04-20
Abstract: 289,064. Electrolux, Ltd., (Assignees of Taylor, R. S.). April 21, 1927, [Convention date]. Lift - valves; pressure - relieving devices for fluids.-The charging and sealing valve 19 of an absorption refrigerating apparatus, is fitted with a fusible plug 26 to prevent bursting in the event of fire. The screwed valve member 19 having longitudinal passage grooves in its threaded part is retracted from its seat during charging by a slidable and rotatable key 28, and is afterwards completely closed. The fusible plug 26 is accommodated in a bore 24 of the valve, which is restricted at 25 so that the fluid pressure does not tend to loosen the plug. The union 32 and cover member 29 are removed after the charging and an apertured cap is secured over the member 18.
Patent GB-238285-A (GB)
Title: Improvements in or relating to screw-threading taps
IPC: B23G5/06
Filed: 1924-05-12
Abstract: 238,285. Gabriel, S. L. D. May 12, 1924. Taps.-A tap has made integral therewith or secured thereto a cylindrical guide portion which is adjustable to fit the hole being tapped. In the integral form the cylindrical portion c, Fig. 1, has several slots d and an annular groove e and is expanded by a tapered screwed plug g. The plug may be plain and actuated by a drawspindle 'having a nut at the rear of the top. In a modification, the cylindrical portion is in the form of a split-sleeve c, Fig. 4, keyed to the tap at n and expanded by a conical nut g<1>. A nut o retains the sleeve on the tap. In a further modification, the tap body is tapered and the keyed split-sleeve is adjusted by a nut engaging an annular internal rib on the sleeve. Alterna. tively, the sleeve may have a projection engaging the flutes of the tap in place of a key.
Patent GB-579631-A (GB)
Title: Improvements relating to tying machines for packages and the like
IPC: B65B13/18
Filed: 1944-06-20
Abstract: 579,631. Wiring packages. POWER & SONS, Ltd., F. A., PADMORE, J. N., PLATT BROS. & CO., Ltd., and BASSINDALE, I. B. June 20, 1944, No. 11743. [Class 45] In wire tying machines of the kind in which wire separators 17 one each side of a twister pinion housing 16 limit the amount of twist and then retract to sever the wire, the separators 17 are secured on rods 182 guided at their rear ends in long guides 201 and are operated by a freely pivoted linkage 209 between a lever 177 on the drive shaft (not shown) and a crosshead 202 which actuates the rods 182. The invention is described as applied to the wire tying machine disclosed in Specification 523,786. The crosshead 202 has eyes 203, 204 by which it is slidable on the rods 182, 'the front eyes 203 lying between adjustable abutments 205, 206. A degree of independent rearward movement of the crosshead 202 and an accumulating of power in the rearward cutting movement is obtained by the action of compression springs 207 mounted between the forward eyes 203 of the crosshead and the rear abutments 206 on the rods 182. To prevent ride or lift of the wire separators 17 they are mounted on blocks 171 the side walls of 211 which are inclined and overlaid by complementary inclined faces on guide plates 172. The bottom surfaces of the latter may be slightly reduced when necessary to take up wear.
Patent GB-559271-A (GB)
Title: Improvements in or relating to pressure sensitive adhesive sheets or tapes, and methods of making the same
IPC: C09J7/21
Filed: 1942-08-20
Abstract: 559,271. Adhesive tapes or sheets. STEVENS, A. H. (Minnesota Mining & Manufacturing Co.). Aug. 20, 1942, No. 11756. [Class 140] An adhesive tape or sheet is formed by coating with a pressure-sensitive adhesive a backing which has been coated or impregnated with an elastic polymer of an ester of acrylic acid. The polymer may be applied in solution in a volatile solvent or as an aqueous dispersion which may be formed by dispersing the monomer or a low polymer in water containing an emulsifying agent such as the sodium salt of the sulphonic acid ester of lauryl alcohol and a polymerization catalyst such as a peroxide or ammonium persulphate and effecting polymerization of the dispersion. The backing may be impregnated with the mixture before polymerization, and polymerization effected by submitting the treated material to both infra-red and ultra-violet light. The polymer may be mixed with fillers, plasticizers, softeners, compatible resins or styrene or vinyl resins, or may be formed by polymerization in admixture with styrene, vinyl acetate or vinyl chloride. The backing may consist of crepe paper, paper formed of wood rope or rag fibres or synthetic fibres or of sheets of regenerated cellulose or cellulose derivatives. Glass fabrics, carded cotton fibres or felted or woven fabrics may be used. The adhesive may be formed of rubber or isobutylene polymer blended with rosin, hydrogenated rosin, ester gum, hydrogenated ester gum or hydrogenated indene resin, or of a polymerized acrylate with a tack-producing substance such as polymethallyl chloride or a soft and tacky intermediate acrylate polymer. The adhesive may be applied in solution or as an aqueous dispersion.
Patent GB-1214676-A (GB)
Title: Mixing valve
Inventor: EGLI ARTHUR
IPC: F16K11/20
Filed: 1968-03-11
Abstract: 1,214,676. Valves. ARMATURENFABRIK WALLISELLEN A.G. 11 March, 1968, No. 11773/68. Heading F2V. [Also in Division B1]  A valve, for mixing hot and cold water to a desired temperature and thereafter for controlling the rate of outflow of the mixture, compries a hot water inlet 2, cold water inlet 3, a mixed water outlet 4, a mixing valve 15, 10, 17, which valve includes a pressure balancing arrangement 23, 25, 22, 25, 24, and an outflow control valve 4, 31, 30. In operation, piston 22 of the balancing arrangement is subjected, on its opposite faces to the pressures of the hot and cold water and so serves to adjust the disposition of balancing plugs 23 and 24 relative to their respective water admitting ports 26 and 27, whilst the proporticn of the pressure balanced hot and cold water passing to the hot and cold water outlets 36 and 37 is determined by the disposition of member 10 relative to a fixed seat 17 and an adjustable seat 15, changes in disposition of member 10 being effected by rotation of handle 5. Flow from outlets 36, 37 to the mixture outlet 4 is controlled by a plug 31 which is non-rotatably movable from the position shown as by rotation of handle 30. The adjustable seat 15 may be provided with a coned face (15a, Fig. 2, not shown) which tapers towards member 10 and serves to provide a more precise control of the temperature selected for the mixed water.
Patent GB-271237-A (GB)
Title: Improvements in machines for glazing and drying photographic prints and the like
IPC: G03D15/02
Filed: 1926-05-05
Abstract: 271,237. Fry, E. B., and Fry, N. B. May 5, 1926. Drying materials in long lengths.-A machine for drying, by squeegeeing wet prints &c. upon ferrotype or glass glazing plates comprises a resilient roller 3, e.g. of rubber, mounted in bearings in a framework comprising side plates 4 cross-braced by rods 11, which is adapted to be reciprocated by hand over a stationary bed-plate 2 supporting the glazing plate, and which carries projections, such as rollers 5, supporting the arms of a lever frame 6 whereby the roller 3 may be manually pressed upon the glazing plate. In the form shown, the lever frame 6 is pivoted at 7 to stationary brackets 8, and the pressure is applied by a pedal 10 connected by chains 9 to the free end of the lever frame. For removing water from the roller 3, a roller 12 covered with absorbent material may be mounted in open slot bearings 13 in the side plates 4 so as to rest on and rotate with the roller 3. The absorbent material preferably comprises a length of fabric which is wound several times round the roller, and is looped at its ends to receive slats adapted to be engaged with the ends of a wire clip 15 supported on the axis of the roller. To prevent the slats from reaching the squeegee roller 3 during working, the size of the roller 12 is such that it makes less than a revolution for each stroke of the roller frame 4, 11. Stops on the drying roller may be provided as an additional precaution. Deformation of the roller 3 when the apparatus is idle is avoided by lifting the drying roller 12 out of its bearings, and by moving the framework 4, 11 towards the pivot 7 until the roller 3 rides off the end of the bed-plates. In this position the levers 6 rest on brackets 17, and the framework is supported by the engagement of projections on the plates 4 with the levers 6. Removable stop pins 18 in holes 20 in the levers 6 prevent the roller from riding off the bed plate when the machine is in use. The bed-plate 2 is made of wood or metal having a waterproof cover, as of zinc, and has channels at its sides for draining the water into a removable or drainable tank beneath it. A modified machine is referred to comprising a stationary squeegee roller and a reciprocating bed-plate.
Patent GB-275336-A (GB)
Title: Improvements relating to liquid level gauges
IPC: G01F23/16
Filed: 1926-05-05
Abstract: 275,336. Higginson, J. May 5, 1926. Indicators actuated by pressure of head of liquid.-In apparatus in which the level of liquid is measured by the pressure necessary to force air out of an open ended tube dipping into the liquid, the dip-pipe is connected to the delivery a oi a hand pump c and the gauge e is connected to the passage d. The piston rod h carries a piston f and is provided with a valve o which closes the delivery aperture at the end of the stroke. A hand grip k is capable of slight relative axial movement on the end of the rod, and when in the position shown it may be screwed into the cylinder cover n to lock the valve o in closed position. The piston is drawn back against the spring j, and the spring effects the return stroke. The pump barrel is enlarged at p to free the piston and cause sharp closing of the valve. The apparatus may be supported on the dashboard of a motor vehicle.
Patent GB-237669-A (GB)
Title: Improvements in pneumatic tyres and in the manufacture thereof
IPC: B29D30/10
Filed: 1924-05-13
Abstract: 237,669. Dunlop Rubber Co., Ltd., and Mortier, G. A. May 13, 1924. Jackets and covers.-Pneumatic tyre casings of large dimensions comprise two or more plies formed by winding one or more strands, threads or cords 1 obliquely over the surface of a collapsable mandrel 4, inextensible edges of the desired shape being obtained by grading the inner circumference of the successive windings. Retaining wires &c. 9 may be built into the edges. Figs 5 and 7 represent the forms in which a beaded-edge, and straight-side easing respectively may be built up. The partially formed edges are then moulded and vulcanized in the usual manner.
Patent GB-369036-A (GB)
Title: Improvements in or relating to monogrammic indicators
IPC: G09F9/37
Filed: 1931-04-22
Abstract: 369,036. Monogrammic signs. ERICSSON TELEPHONES, Ltd., 67, Kingsway, London, and WILMAN, C. W., 7, Grange Avenue, Beeston, Nottingham. April 22, 1931, No. 11880. [Class 118 (ii).] A monogrammic sign comprises two series of electromagnetically actuated shutters S1, S2 coloured white and black respectively co-operating with a black background having two vertical series of white discs X, Y thereon and two vertical screens adapted to mask the shutters S1 when swung outside the display area. By the selective swinging of the shutters in either direction the desired letter is built up of white discs on the background and on the shutters. Fig. 5 shows the armatures A1, A2 on the spindles of the shutters S1, S2 coacting with electromagnets M1 .. M4, the shape of the armatures ensuring that they come to rest independently of mechanical stops, provided that the energization of the magnets be maintained. A polarized arrangement is indicated by the permanent magnets P1, P2. In a modification only three electromagnets are provided for actuating each pair of shutters. A magnet may have more than one winding in order that it may be energized either separately or in conjunction with another by closing a single circuit.
Patent GB-458402-A (GB)
Title: Improvements in or relating to gear-changing means for motor vehicles
IPC: F16H63/46
Filed: 1935-05-18
Abstract: 458,402. Controlling change speed gearing. CLERK, R. C., Sweet Briar, Towing Path, Egham, Surrey. May 18, 1935. No. 12029. [Class 80 (ii)] Gear-changing mechanism having selector bars g, h, Fig. 1, moved oppositely to gear positions from neutral comprises a preselector profile member e, Fig. 6, the changes being effected by the pedal or servo device (not shown) operating the main clutch of a vehicle. To change from the neutral position of Fig. 1 with clutch engaged, the preselector e is first operated, automatically or by hand, to, say, the position of Fig. 2. The clutch pedal is then depressed. This swings a bell-crank lever m from the equilibrium position shown in Fig. 1 to position m<1>. A block j then slides to position j<1>, and two ratchet levers a, bare swung about the same pivot f to come together scissor-wise to the position of Fig. 2. The lever a is shown apart in Fig. 5. Notches a<3>, b4, Fig. 1, come together on a pin c<3>, Fig. 4, on a ratchet lever c, and notches b<3>, a<4> come together on a pin d<3> on a ratchet lever d, so that these levers c, d are necessarily in the neutral position with other parts, as shown in Fig. 2. A selected pawl a<1> then falls through a gap e<1> in the profile member e into position to engage a ratchet tooth c<1>, Fig. 4, on the lever c. On release of the clutch pedal, the bell-crank lever m and the block j fly back to the position of Fig. 1 and the levers a, b are turned downwards of Fig. 3 to the position shown with the selector bar g attached to the pin c<3> in its lower gear position. The lever m after passing the dead centre m<2>, Fig. 1, causes the block j to rise a little so as to ease the last operative pawl a<1> out of engagement with its tooth c<1> so that the pawl does not obstruct the free movement of the preselector on the next change. The bar g is moved up when a pawl b<1> engages a ratchet c<2>, Fig. 4. The bar h moves down or up according as a pawl b<2> engages a ratchet d<2>, or as a pawl a<2> engages a ratchet dl.
Patent GB-1291028-A (GB)
Title: Automotive vehicle having an air levelling system
IPC: B60G17/019
Filed: 1971-04-29
Abstract: 1291028 Suspension levelling systems FORD MOTOR CO Ltd 29 April 1971 [1 June 1970] 12035/71 Heading B7D A motor vehicle suspension comprises air springs 12, 14 located within coil springs 16, 18, a compressor 22 for supplying air to the springs 12, 14, a solenoid valve 34 for releasing air from the springs 12, 14 and a level control switch 36 which controls operation of the compressor 22 and opening of the valve 34 to maintain the vehicle body 38 at a constant height above the rear axle 42, there being associated with the level control switch 36 a solid state switching device in the form of a controlled rectifier 122 have a time-delayed firing circuit which delays operation of the compressor 22 or opening of the valve 34 until the body height has been above or below the desired value for a predetermined time. The level control switch 36 has a rotatable switching arm 100 and four conductive sectors 104, 106, 108, 110, the sector 104 being con. nected to the winding of a compressor motor relay through a pressure switch 80 arranged to open in the event of excessive compressor output pressure, and the adjacent sector 106 being connected to the winding 68 of the solenoid valve 34. The sectors 108, 110 are disposed opposite the sectors 104, 106 respectively and connected through a time delay circuit to a programmable unijunction transistor 136 for firing the rectifier 122.
Patent GB-183590-A (GB)
Title: Improvements in the vulcanization of rubber and apparatus for use therein
IPC: B29C35/02
Filed: 1921-04-27
Abstract: 183,590. Lambert, B. April 27, 1921. Alloys.-A eutectic alloy composed of 25 parts by weight of tin, 16 parts of lead, and 9 parts of cadmium, which melts at about 145‹ C. and remains at this temperature until completely solidified, is employed for imparting heat to a vulcanizer. If a higher initial temperature is desired an allov is used which consists of 57 parts of tin, 21 parts of lead, and 22 parts of calcium, and melts at 153‹ C. but cools as it solidifies to 145‹ C.
Patent GB-528318-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/30
Filed: 1939-04-24
Abstract: 528,318. Condensers. HUNT, Ltd., A. H., and BETTRIDGE, F. L. G. April 24, 1939, No. 12309. [Class 37] Condenser has a flat backing plate 20 of insulator, superposed alternate metal and dielectric sheets 11 and rivets or eyelets 18, 19 holding together the assembly with which maybe associated terminal means 21, 22. A cover plate 25 is then applied and held by means other than the rivets &c. for example by metal clips 32, 33 which are part of a terminal-wire stiffening means 31. The condenser may be adjusted to capacity by scraping the metal sheet exposed, before covering with plate 25. Specifications 440,948, [Group XXXV], 507,143, and 510,917 are referred to.
Patent GB-677585-A (GB)
Title: Improvements in or relating to synthetic rubbers and method of stabilizing same
IPC: C08K5/13
Filed: 1950-05-17
Abstract: Synthetic rubbers, such as copolymers of butadiene with styrene or acrylonitrile, produced by the polymerization of the ingredients in latex form, are stabilized by addition to the latex, prior to coagulation, of a 2,21-methylene bis-(4,6-dialkyl phenol) of the general formula <FORM:0677585/IV (a)/1> where R1 is an alkyl radical of 1 to 3 carbon atoms, and R2 is a tert.-alkyl radical of 4 to 8 carbon atoms, the linkage from the tertiary carbon atom being directly to the benzene nucleus.  Phenols specified are 2,21-methylene bis-(4-methyl-6-tert.-butyl phenol), and 2,21-methylene bis-(4-methyl-6-tert.-butyl phenol).ALSO:The preparation of 2,21-methylene bis-(4,6-dialkyl phenols) is described in examples.  2,21 - methylene - bis - (4 - methyl - 6 - tert. - butyl phenol) is prepared by treating a mixture of 4 - methyl - 6 - tert. - butyl phenol, concentrated hydrochloric acid and heptane with 36 per cent aqueous formaldehyde solution, followed by digestion at 50-60 DEG  C.; after cooling the solid product is filtered off and washed with heptane-water mixture. 2,21-Methylene-bis-(4-methyl-6-tert.-octyl phenol) is prepared by treating a mixture of 2-tert.-octyl-4-methyl phenol and concentrated hydrochloric acid with 36 per cent aqueous formaldehyde, heptane is then added and the reaction mixture is heated at 55-60 DEG  with stirring, the product is then washed with water, and the heptane-water mixture removed by distillation.  The products are used as stabilizers for synthetic rubbers.
Patent GB-295062-A (GB)
Title: Improvements in or relating to the treatment of materials containing artificial silk
IPC: D06M11/38
Filed: 1927-05-09
Abstract: 295,062. Bleachers' Association, Ltd., Kershaw, W., Barrett, F. L., Whitelegg, C. J., and Sutton, G. D. May 9, 1927. Mercerizing. - Mixed fabrics of cotton and regenerated cellulose such as viscose or cuprammonium silk are mercerized under tension with alkali in the usual manner, the mercerizing liquor being washed off at a controlled temperature above 50‹ C. By the process the lustre of the viscose, is little affected while the cotton fibres are levelled up.
Patent GB-474674-A (GB)
Title: Improvements in two-stroke cycle radial-cylinder internal combustion engines
IPC: F02B75/02
Filed: 1936-05-01
Abstract: 474,674. Two-stroke engines ; driving- gear. PEDERSEN, K. E., and LARSEN, K. O. C. May 1, 1936, No. 12409. [Class 7 (ii)] In a radial-cylinder two-stroke engine, enlargements e of the pistons act as the charging-pumps and carry rollers h which engage a cam track on a flywheel, the enlarged cylinder bores e thus supporting the lateral reactions of the rollers. The rollers are kept on the track by springs g, or according to modifications, by pins or hooks engaging a groove in the track. Opposed pistons b, which act through rollers q on cams o on the main shaft, control admission ports u, which are cross-connected by pipes v to pump delivery ports w. Exhaust ports t and pump admission ports x are piston-controlled. Two impulses occur in each cylinder per revolution, the cam track being preferably most steeply inclined at points of greatest pressure. The cylinder axes may be inclined or tangential to the shaft.
Patent GB-1460362-A (GB)
Title: Apparatus for inserting fasteners
IPC: B21J15/10
Filed: 1974-03-20
Abstract: 1460362 Setting studs CLIFFORD WHATMOUGH Ltd 25 Feb 1975 [20 March 1974 17 Aug 1974] 12491/74 and 36327/74 Heading A3H [Also in Division B3] An apparatus for inserting fasteners, e.g. eyelets, rivets or press studs, in material comprises a pair of cooperating dies 12, 13 and a pump 16 which is movable through one of the dies to punch a hole in the material and to which an impurity is applied near to the end of its movement. Upon downward movement of a lever 11, the dies 12, 13 for setting a fastener in material are moved towards each other and a lever 18 is pivoted against the action of a spring (30) (Fig. 2, not shown) by a pin 24. When the lever 11 has moved further the pin 24 slides off the lever 18 which is pivoted in the opposite direction by the spring (30) causing an impact to be applied via a push rod 17 to the punch 16 which cooperates with a bore (15), in the lower die 13 to punch out a hole in the material. Upon further downward movement of the lever 11 the fastener is set by the dies 12, 13. The lever 18 includes an end portion 22 which is upwardly pivotable against the action of a spring 23 by the pin 24 during the return movement of the lever 11 to reset the apparatus for the next fastening operation.