baber/WOPTO huggingface dataset:
Patent GB-1532468-A (GB)
Title: Production of iron oxide black pigments
IPC: C01G49/00
Filed: 1976-04-20
Abstract: 1532468 Iron oxide black pigment BAYER AG 20 April 1976 [24 April 1975] 15875/76 Heading C1A An iron oxide black pigment of the magnetite structure is prepared by precipitating iron oxide hydroxide in an alkaline medium with ferrous hydroxide in the presence of from 0À05 to 5 wt. per cent based on the end pigment of at least one inorganic ionic compound of the metals Cu, Ni, Al, Cr, Ti, Zr and/or V and recovering the pigment formed. The iron oxide hydroxide may be prepared by partial precipitation of the iron from a ferrous salt solution in the presence of an alkali metal or alkaline earth metal hydroxide followed by oxidation at acid pH. The ferrous hydroxide may be prepared by then precipitating the remaining ferrous content of the ferrous salt solution with further alkali metal or alkaline earth metal hydroxide. Alternatively the iron oxide hydroxide and ferrous hydroxide may be prepared separately.
Patent GB-659238-A (GB)
Title: Driving belts
IPC: F16G5/16
Filed: 1949-06-16
Abstract: 659,238. Belt gearing. MANHEIM MANUFACTURING & BELTING CO. June 16, 1949, No. 16049. Convention date, Feb. 24. [Class 80(i)] In a belt comprising a series of overlapping strips 1 secured together by fastening pins 2, the pins at the underside of the belt are provided with dished washers 6 between the heads 3 of the pins and the lower ends of the strips so that any sharp bending of the strips in passing round the pulleys is avoided. Washers 9 and securing pins 7 are provided at the top ends of the pins and an intermediate shoulder 4 is also provided. In a modified arrangement the washers 9 are held by arms on a pin screwed axially into the top of the pins 2.
Patent GB-1039565-A (GB)
Title: Improvements in or relating to the catalytic polymerization of olefins
IPC: C08F4/64
Filed: 1963-04-24
Abstract: Olefin polymers are polymerized in the presence of a catalyst system comprising a complex salt having the general formula TiCl3.nAlCl3, where n = 0.33 to 5.0, and a metal more electro-positive than aluminium.  The catalyst system may comprise an organic complexing agent of the "Lewis base" type and the system may be formed in the presence of an olefin such as ethylene, propylene, or butene, and optionally hydrogen.  The aluminium compound may have the formula TiCl3. 1/3 AlCl3 and if a higher Al to Ti ratio is required the compound may be enriched with AlCl3.  The metal may be selected from alkali metals and their liquid alloys at room temperature, the alkaline earth metals and the rare earths.  The olefin polymerized may be the same as the olefin used in the preparation of the catalyst.  The complexing agent may be tris-N,N-dimethyl phosphoramide.  The polymers are recovered from the polymerized mixture by conventional methods. Exemplified polymers are polyethylene and polypropylene.
Patent GB-727678-A (GB)
Title: Semiconductive materials and the production thereof
Filed: 1952-06-27
Abstract: Semi-conductive single crystals of germanium or silicon are obtained by immersing a seed crystal in a molten mass of material to be crystallized and withdrawing the crystal at such a rate that the molten material crystallizes on the seed, the rate of withdrawal being varied during growth to produce a desired resistivity distribution in the crystal, e.g. being reduced in such a manner as to produce a zone of crystalline material of constant conductivity. When the withdrawal rate is being reduced it may be suddenly increased when the rate becomes zero and then gradually reduced again to produce a second zone of constant but lower resistivity than the first zone.  To prevent undue increase in diameter, the rate of growth is simultaneously reduced as the withdrawal rate diminishes by increasing the temperature of the melt.  Uniformity of growth is promoted by rotation of the seed and crystalline material and vibration in the line of withdrawal. The apparatus and other features of the method employed are generally as described in Specification 706,849, but an eccentric member bearing on the lifting wire to cause longitudinal vibration of the growing crystal, means for rotating the seed and means for supplying impurity material in solid, liquid or gaseous form to alter the conductivity character of the growing crystal along its length are provided.  Specification 706,858 also is referred to.
Patent GB-1359937-A (GB)
Title: Light failure warning system
IPC: B60Q11/00
Filed: 1973-04-06
Abstract: 1359937 Lamp failure alarms WIPAC DEVELOPMENT Ltd 6 April 1973 [7 April 1972] 16248/72 Heading G4N A failure warning system for vehicle lights comprises relay coils 32, 41 connecting a supply source 11 to separate lamps 20-30, the associated relay contacts 35, 36; 44, 45 being closed when the coils are not energized and connecting a relay coil terminal to a R.F. transmitter 38, 47 and a R.F. receiver responsive to the received signal for actuating a warning device 52, 53. In operation, lights 20-25 are activated by closure of lights switch 13 and brake lights 29, 30 are activated by closure of brake light switch 26. When any of the lamp fails or there is a fault in the associated circuit, the associated relay contact closes to energize an R.F. transmitter 38 or 47. In response to the received signals, a switch 54 is closed in the receiver 51 for activating an audible alarm 52 and a visible alarm 53. The relays may be formed by reed switches.
Patent GB-1103215-A (GB)
Title: An addition and subtraction system
IPC: G06F7/49
Filed: 1965-04-15
Abstract: 1,103,215. Electric digital calculating. HITACHI SEISAKUSHO KABUSHIKI KAISHA. 15 April, 1965 [15 April, 1964], No. 16277/65. Heading G4A. To add two decimal digits, one digit is entered as a marking on the appropriate one of leads I 0 -I 9 , the other digit is entered by positioning the wipers W 0 -W 9 , W c  on the appropriate contact of the respective banks, and the result is obtained as a marking on an output lead O 0 -O 9 . A carry signal is developed as follows, for example when adding digits 5, 8. The input 15 passes through wiper W 5  in position P 8  to produce output O 3 , and also passes through diodes D to wiper W c  also in position P 8  to produce the carry signal. This signal energizes the relay 3 (although gates may be used) of the next higher decimal stage to add one to the input I. If this input is already I 9 , a carry signal is produced immediately, irrespective of the position of wiper W c  since L c  is connected to the lowest point in the diode chain. A similar circuit for subtraction is illustrated in Fig. 6b (not shown). Corresponding circuits for ternary (3-line) and binary (2-line) digits are briefly described. The arrangements are said to be applicable to machine-tool control and the inputs may be entered manually.
Patent GB-474261-A (GB)
Title: Apparatus for trimming and joining the ends of fabric pieces
IPC: D05B37/04
Filed: 1936-06-11
Abstract: 474,261. Sewing - machines. SINGER MANUFACTURING CO., Ltd., CORRALL, H., and HEGGIE, J. June 11, 1936, No. 16296. [Class 112] In a. machine for seaming edges of long lengths of fabric, the machine runs along the edges of the fabric on a railway and is operated by an electric motor. The two end pieces of fabric are overlapped and secured on the pins 77 with the free ends beneath, the presser 78 of the sewing-machine A. The electric motor M is then started by a switch S on the carriage 5. As the driving belt 11 from the motor is on the loose pulley 10, the carriage 5 and machine A remain stationary. The belt is shifted to the driving pulley 9 by the manual belt-shipper 13 which is retained in " running " position by the latch-lever 19. The shaft of the beltshipper 13 carries the spring-pressed plunger 17 to one side of the stop-pin 23 and frees the carriage 5. The main shaft 8 then drives the sewing-machine to commence stitching. By means of the sprocket chain drive 52 between the wheels 51 and 53, the speed-reducing gear is set in motion and through the sprocketwheel 71 meshing with the stationary chain 34, the carriage 5 and machine A are propelled along the tracks 3 to traverse the edges. As the carriage 5 approaches the end of its range of travel, the latch-lever 19 will be released by the engagement with the rounded upper end 27 of the tripper 26 and owing to the action of the spring 18, the belt-shipper 13 is moved to the " off position, shifting the belt from the pulley 9 to the loose pulley 10 and allowing the machine A to come to rest. When the carriage 5 with the machine A has arrived at the end of its range of travel, the carriage is returned to starting position by giving the chain 34 a partial circulatory movement by the wheel 38 after releasing the pawl 40 from the ratchet - wheel 39. As the carriage approaches its starting position, the spring- pressed plunger 17 rides over the top of the stop - pin 23. A blower 30 fixed to the bracket 29, Fig. 2, is provided with a tube 31 terminating over an inclined shoot 32. The blower is driven from the motor M by the belt 33 and keeps the shoot clear of trimmings.
Patent GB-956444-A (GB)
Title: Improvements in domestic washing machines
IPC: D06F37/22
Filed: 1960-05-09
Abstract: 956,444. Washing machines. G. BAUKNECHT G.m.b.H., ., ELEKTROTECHNISCHE FABRIKEN. May 9,1960 [March 11, 1960], No.16344/60. Heading D1A. [Also in Division F4] A rotary washing and spin-drying drum i is mounted for swinging movement within a liquid container h by means of a carrier member a which is mounted to swing about an axis located at or near the base plate e of the machine. As shown, the carrier member a is mounted on leaf springs S disposed edgwise on the base plate e. Alternatively the carrier member may be mounted on torsion bars or on a resilient block. Shock-absorbing means (not shown) may be provided on both sides of the carrier member which carries a counterweight C. An adjustable friction brake g may be mounted between the carrier member a and the stationary container h.
Patent GB-439291-A (GB)
Title: Improvements in or relating to cleaners for boilers and the like
IPC: F28G3/16
Filed: 1934-06-01
Abstract: 439,291. Sand-blast. BABCOCK & WILCOX, Ltd., and GLINN, R. J., Babcock House, Farringdon Street, London. June 1, 1934, Nos. 16354/34 and 7464/35. [Class 60] [See also Group XXVIII] The tubes of a boiler &c. are cleaned by a sand blast which is projected onto the boiler tubes through a tube 5 located within a tubular body 1 mounted on the wall box 2, the blower tube 5 being provided at its outlet end with a nozzle 7 and at the other end with actuating means whereby it is advanced into and retracted from the boiler furnace. The blower tube has secured to it a sleeve 4 which is supported in a bracket 6 carried by an inclined plate 3<a> on the wall box and is provided with a pin or stud 10 to cooperate with a longitudinal slot 11 terminating in a transverse or helical extension 11<a> in the said bracket, the slot 11 preventing rotation of the blower tube until it is in its projected position. The actuating means may comprise an ordinary hand wheel or, as shown, a shaft 20 rotatable by a hand wheel 21 and provided with a pinion 19 which engages a rack 18 on the underside of a slide 14 secured to the blower tube. In a modification the blower is composed of two tubes, one for high-pressure air and the other for gravel which is conveyed therethrough by low-pressure air.
Patent GB-191698-A (GB)
Title: Improvements in magnetic compasses for marine or aerial navigation
IPC: G01C17/00
Filed: 1922-06-15
Abstract: 191,698. Doignon, A. L. Jan. 12, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Mariners' and aeronautical compasses.-In a liquid compass, for use in marine and aerial navigation, expansion and contraction of the liquid are counteracted by the provision of an annular air cushion around a downwardly-projecting tube T, and air bubbles which form beneath the glass G<1> are transferred to the annular air space by suitable manipulation of the container. A course-setting pointer A is adjustable about the pivotal axis of the compass-oard P as follows. A tube g, mounted for sliding vertically without turning, is adapted to be raised by operating a handle on a shaft a carrying a crank arm m engaging a groove r formed on the tube. The tube lifts the compass-card from its pivot without turning it until the upper end of a socket on the card abuts on a centre piece on the glass G'. While the compass-card is thus held stationary a milled knob n is turned to operate a spindle L carrying at its lower end a finger c which engages a finger i on the pointer A to adjust the pointer. The handle is then released to lower the compass-card on to its pivot. The. end of the pointer A and the lubber line are rendered self-luminous.
Patent GB-238855-A (GB)
Title: Improvements in telephone apparatus
IPC: H04R1/24
Filed: 1925-06-29
Abstract: 238,855. Neufeldt & Kuhnke. Aug. 25, 1924, [Convention date]. Magnetic instruments. - The diaphragm 1 of a tele.- phone receiver is associated with several independent magnetic systems 2, differing in their characteristics. The magnetic systems may be similar and the distances of the pole-pieces from the diaphragm may differ, or the distances between the two poles of each system may be different. Each of these two elements may be adjustable for the individual magnetic systems. The magnet systems may also differ in size.
Patent GB-253366-A (GB)
Title: Improvements in or relating to electrical cables
IPC: H04B3/26
Filed: 1925-06-29
Abstract: 253,366. Muirhead & Co., Ltd., and Davies, B. June 29, 1925. Duplex telegraphs; artificial lines.-In loaded electric cables such as are used for duplex working the middle section of the cable is loaded continuously and the ends by coils placed at intervals. The artificial line is loaded by coils and a close correspondence between the loading at the ends of the cable and the ends of the artificial line is obtained. In the arrangement shown in Fig. 1, 1 represents the continuously loaded central section of the cable, and 4, 5 loading coils connected by sections of cable 2, 3. The artificial line is made up of coils 7 and unloaded sections 6.
Patent GB-727424-A (GB)
Title: Improvements in and relating to sound and like recording apparatus
IPC: G11B3/70
Filed: 1952-07-03
Abstract: 727,424. Sound recording devices. COSMOCORD, Ltd., and KELLY, S. June 26, 1953 [July 3, 1952], No. 16759/62. Class 40 (4). In the process of cutting a gramophone record, in order to reduce background noise, the stylus is vibrated not only by the frequencies to be recorded but also by an additional frequency outside the range to be recorded, preerably above 30 kc/s. and at least twice thehighest frequency to be recorded. The direction and waveform of the superposed vibration is immaterial. In one embodiment the pivots of a moving iron armature carrying the cutting member are caused to vibrate through the action of a piezo-electric crystal fed with the additional frequency. In another embodiment, the armature is T-shaped, the horizontal piece carrying the pivots, and a crystal of barium titanate is cemented at its centre to the stem of the T for the purpose of supplying the additional vibration. Alternatively, the stem of the T may be excited magneto-strictively by a coil surrounding it. Alternatively, with a piezo-eloctric crystal type recorder the additional frequency may be superimposed electrically on the recording frequencies either by series or parallel connection.
Patent GB-1282340-A (GB)
Title: Improvement in internal combustion engines
IPC: F02M3/04
Filed: 1970-04-08
Abstract: 1282340 Spray carburetters TENNECO Inc 8 April 1970 [29 April 1969] 16787/70 Heading F1B Fuel is supplied to a nozzle 33 in the or each induction passage 14 of a manifold 13 by a piston pump 23 on opening the throttle valve 19 for acceleration. The piston rod 26 is connected to the throttle linkage and the pump delivers through the passage 29 to a pipe 35 connected to the nozzle 33 and through a passage 32 to the carburetter induction passage 21. The carburetter 15 has main and idling fuel circuits and flow through the idling circuit is prevented when the manifold vacuum exceeds a predetermined value, e.g. by a valve or an air bleed.
Patent GB-562124-A (GB)
Title: Improvements in or relating to cooling means for the pistons of internal-combustion engines
IPC: F01P3/08
Filed: 1942-11-27
Abstract: 562,124. Pistons. VINCENT "H.R.D." CO., Ltd., and VINCENT, P. C. Nov. 27, 1942, No. 16915. [Class 122 (i)] In a piston in which cooling oil is directed on to the crown and flows back through the skirt to a sump, transverse baffles extend between the piston and connecting- rod end to restrict return flow, The baffle 18, Fig. 6, may be attached to or formed integrally with the piston in line with or above the gudgeon pin axis and extend into close proximity to the connecting- rod to form a restricted passage 28. Alternatively, baffles 41, Fig. 9, attached to or integral with the connecting-rod small end co-operate with the piston wall to form passages 42. The piston head may be formed separately from the skirt and secured thereto by bolts. Cooling fins may be formed on the head or walls of the piston.
Patent GB-504166-A (GB)
Title: Improvements in or relating to means for mooring and re-fuelling seaplanes, boats and the like
IPC: B63B22/02
Filed: 1938-06-07
Abstract: 504,166. Pontoon rafts. TECALEMIT, Ltd. June 7, 1938, No. 16970. Convention date, June 7, 1937. -[Class 113 (i)] [Also in Group XXI] A floating apparatus forming a mooring buoy and a re-fuelling station for aircraft, boats, &c. comprises a body containing a fuel tank or tanks occupying the major part of the body, and an oil tank or tanks, pumping apparatus for the fuel &c. being mounted on the body. A cylindrical-conical body 1, with ballast 8, contains a lower fuel reservoir 2 divided by diametrical partitions 2a with openings 2b for flow of the fuel, plates 2c limiting rolling. An annular oil tank 4 is arranged above the reservoir 2 and is surrounded by a radially-divided air container 5. Centrally of the deck 6 is a kiosk 7 containing the fuel pumping &c. plant comprising a motor pump 10 and a hand pump 12 alternatively connectible to the suction pipe 13 by a valve 15, and, through further valves, to a common discharge pipe containing an air separator and a meter the discharge pipe is connected through the shaft of a spool 22 to a delivery pipe 23 wound on the. spool. Through a byepass 25, the pump 10 may be used for filling the reservoir 2, while a hand pump 28 and pipe 29 permit removal of water separated from the fuel and its discharge through a pipe 30 and valved funnel 31. A further pump delivers oil from the tank 4 through the shaft of a coaxial spool 34 to a discharge pipe 35 wound 'on the spool. The outer ends of the fuel and oil discharge pipes are supported by rollers 53. A bulwark 38, with fenders 39, 40, surrounds the deck. A tubular signal mast 47, in two parts threaded together, contains an exhaust pipe for the pump motor and air inlet &c. pipes connected to the reservoir 2 and tank 4, and supports a pulley 54 over which the oil &c. discharge pipes may be passed ; the mast also supports a gangway 58 which may be automatically positioned by moans of wind vanes. The kiosk also carries a mooring rail 56. Water &c. tanks may also be provided.
Patent GB-1023655-A (GB)
Title: Electron multiplier
IPC: H01J43/24
Filed: 1963-04-30
Abstract: 1,023,655. Electron multipliers. RADIO CORPORATION OF AMERICA. April 30, 1963 [May 24, 1962], No. 17010/63. Heading H1D. An electron multiplier has a tubular resistive secondary electron emissive coating 14 on the inner wall of the tubular envelope 12, and a central wire electrode 20 of radius in proportion of 1:800- 1000 to the radius of the tubular envelope. A potential gradient is established along the coating by the D.C. source 18 and a high positive voltage is applied to the electrode 20. The coating 14 is also photo-emissive so that the end 17 serves as a photo - cathode. Tensioning spring 22, or an enlarged end of the electrode 20, or a separate tubular electrode 24 forms the collector electrode of the tube. A light shield may be placed around the tube. The primary cathode, however, need not be a photo-cathode. In another embodiment a separate photo-emissive coating is provided at 17 to form the photo-cathode and the central electrode 20 is replaced by a quartz fibre with a resistive coating, e.g. of tin oxide, along which a potential gradient is also established. In a modification the resistive secondary electron emissive coating may be formed as a single or double helix. Conductive secondary electron emissive and possibly also photo-emissive elements may be deposited as a mosaic on the resistive material and, where resistive material is provided in the form of a helix, also on the envelope parts in between the turns of the helix. Alternatively, a resistive coating may be deposited over a resistive helix and a mosaic of conductive secondary electron emissive elements provided on the resistive coating. A resistive secondary emissive and photo-emissive coating may be formed by condensing a thin film of antimony, afterwards reacted with caesium, on a previously evaporated antimony coating. Conductive secondary emissive elements deposited as a mosaic on resistive material may consist of caesium-activated globules of oxidized silver, the resistive material consisting of a thin platinum film or alternatively, of caesiumactivated patches of antimony. A detailed account is given of the necessary equations for use in operating and designing the tube.
Patent GB-735809-A (GB)
Title: Improvements in the continuous, or semi-continuous, casting of metals
IPC: B22D11/059
Filed: 1953-06-19
Abstract: 735,809. Continuous-casting machines. COMPAGNIE FRANCAISE DES METAUX. June 19, 1953 [Jan. 23, 1953], No. 17085/53. Class 83 (1). The ingot leaving a continuous-casting mould is solidified and cooled by a liquid sprayed on in a finely-atomized condition, the size of the droplets being selected to produce vaporization at the place where they come into contact with the ingot. Water from holes 12 in water-ducts 7, 8, is atomized and directed as curtains f, f<SP>1</SP>, f<SP>2</SP> by air or other gas passing through holes 13 in gas ducts 6. In the casting of hollow ingots the liquid may be sprayed on to the internal surface of the casting from the core. Banks of atomizers may be combined with banks of sprinklers.