baber/WOPTO huggingface dataset:
Patent GB-440164-A (GB)
Title: Improvements in stockings
IPC: A41B11/00
Filed: 1935-07-03
Abstract: 440,164. Stockings. COTTON-STRUMPPFABRIK AMAZONE GES., 38, Odoakergasse, Vienna. July 3, 1935, No. 19030. Convention date, July 4, 1934. [Class 141] A stocking is provided with plating work d of warmthconserving material, e.g. wool, extending from the upper edge or the vicinity thereof to below the knee so as to leave the middle or calf portion of the stocking free. Plating work b may also be provided at the foot portion of the stocking.
Patent GB-298694-A (GB)
Title: Insulating materials
IPC: H01B3/28
Filed: 1927-07-18
Abstract: 298,694. Kemp, A. R., and Western Electric Co., Inc. July 18, 1927. Addition to 246,663. Drawings to Specification. Insulating materials.-A number of compounds comprising sulphur and rubber in different proportions are mixed, either before or after heating, to produce an insulating material which has mechanical properties similar to that described in the parent Specification, but has electrical properties more suitable for its use in a submarine cable. As an example of a compound suitable for the purpose, two mixtures of rubber and sulphur are prepared, one containing 5 per cent by weight of sulphur and the other containing 20 per cent. After washing in the rolls of a rubber mill, each mixture is heated to a temperature of about 150‹ C. to produce vulcanization, and it is maintained at that temperature for about 16 hours. The materials are then made thermoplastic by raising the temperature to about 235‹ C. and keeping them at this temperature for about 10 hours. About three parts of the mixture with the high sulphur content, and two parts of the mixture having the low sulphur content, are mixed in a standard rubber mill, either before or after being subjected to the higher temperature. The finished compound has approximately the same thermoplastic properties as guttapercha, and the electrical conductivitv and dielectric constant are lower than those of the mixtures described in the parent Specification. Other materials, such as balata or mineral rubber, may be mixed with the compound, and an example of such a mixture is given in the Specification.
Patent GB-442650-A (GB)
Title: Improvements in or relating to bobbin winding machines
IPC: B65H54/52
Filed: 1935-07-05
Abstract: 442,650. Winding threads. SOLDEVILA, A., 46, Ausias March, Barcelona, Spain. July 5, 1935, No. 19247. Convention date, July 5, 1934. [Class 120 (ii)] In a machine for winding the separate threads from chains or beams into crosswound bobbins, all the bobbins are rotated at the same speed by driving cylinders that are each provided with a roughened or engraved surface and are applied to the cylinders by weights or springs so that slipping between the bobbins and cylinders is prevented and the feed of the threads to the bobbins is produced by the pull exerted by the latter on the chain or beam of thread. As shown, the bobbins 3, Fig. 2, are carried in oscillatable arms 4 and applied to the driving cylinders 2, which are all driven at the same speed, by weights 6 and springs 7 ; the bobbins may be driven through a change-speed mechanism so that the winding is begun at a relatively low speed and the speed is increased in proportion to the increase in diameter of the bobbins. The threads 10 coming from the chain or beam pass in groups through reeds 18, over a guide roller 13 and through reciprocating thread guides 8 to the bobbins and the reeds 18 are separated by projecting bridges 19 upon which the operative may rest her arm without touching the prongs of the reeds. A series of stopping levers are arranged near the roller 13 and a series of pedal starting levers along the platform on which the operative stands so that the machine may be stopped or started at any point in the length of the machine. When the threads are drawn from a chain 20, Fig. 5, they are braked by passage over rollers 27, 28 and then pass around a roller 29 to a take-up roller 30 carried by an oscillatable frame 31 controlled by a rope or chain 33 and counterpoises 34, the effect of which diminishes as the tension in the threads relaxes by the weights successively contacting with the floor ; when the threads are drawn from a beam, the rollers 27, 28 are not used and the beam itself is suitably braked.
Patent GB-758779-A (GB)
Title: A rotor for a potentiometer
Inventor: MUCHER GEORGE JOHN
IPC: H01C10/34
Filed: 1954-07-01
Abstract: 758,779. Variable contact resistances. CLAROSTAT MFG. CO., Inc. July 1, 1954, No. 19297/54. Class 37. A variable control for a resistive potentiometer having a rotor body interconnecting a circular resistance element and a collector ring comprises a pair of contacts disposed on opposite faces of the rotor and a connecting portion extending across one edge of the rotor, a portion of one of the contact members engaging the rotor body to prevent any relative movement therebetween. Figs. 5, 6 and 7 show a potentiometer comprising a stator 24 of dielectric material carrying a resistance strip 25 having terminals 26 and a cover 28 which supports a contact ring 29 having a terminal 30. A rotor body 39 of dielectric material has attached to it a rotor as shown in Fig. 3 which is stamped out of metal, Figs. 1 and 2 (not shown), and comprises contacts 21, 22 attached to members 14, 23 and a bridging member 17, the rotor being secured to the rotor body by the arms or fingers 18 of the rotor encircling a ridge or rib 45, the ends of the arms bearing against the side edges of the extended portion 47 of the rotor body. The contact assembly (Fig. 3) is made resilient so that the contacts 21, 22 bear against the contact ring 29 and resistance ring 25 respectively. Fig. 9 shows the combination of two potentiometers, the cover of the right hand assembly being provided with a " knock-out " portion 54 which when removed allows shaft 52 to pass through to the left-hand assembly. A spacer sleeve 53 is provided and shaft 52 may conveniently be non- circular, Fig. 10 (not shown).
Patent GB-148695-A (GB)
Title: Improvements in magneto-electric generators for use in connection with internal combustion engines
IPC: F02P1/00
Filed: 1919-08-05
Abstract: 148,695. Godfree, C. P. Aug. 5, 1919. Magneto-electric machines.- The distributor and contactbreaker of a magneto for internal-combustion engines are mounted at the upper end of a substantially vertical shaft driven by bevel-gearing from the magneto shaft. The bearings of the vertical shaft can be moved to adjust the engagement of the bevel-wheels, and the current from both coils of the magneto is collected from sliprings. The contact-breaker, consisting of a rocking-lever operated by a cam on a vertical shaft e, is mounted in a cylindrical casing l, supported so as to be adjustable for timing on a sleeve f surrounding the shaft e. The shaft e is driven from the magneto shaft b by bevel-gearing d. The engagement of the bevelgearing is adjusted by moving the sleeve f vertically, for which purpose a set-screw i passes through the casing of the magneto and engages with a helical slot in the sleeve f. The distributor s on the upper end of the shait e has a central contact t and a contact-piece w moving over a number of contact-pieces x connected to sockets x', in which cables can be held by springs x<2>. The contacts x are carried on a cover v attached to the casing l by hinged springs w. The two coils of the magneto are connected to slip rings 9, 10, the connexion to the coil 10 passing through a block of insulating material inserted in the ring 9. The current is taken from the rings by brushes and led where required.
Patent GB-456463-A (GB)
Title: Improvements in thimble tube boilers and water heaters
IPC: F24H1/50
Filed: 1935-07-05
Abstract: 456,463. Water-tube boilers. SPANNER, E. F., 13, Shooters Hill Road, Blackheath, London. July 5, 1935, No. 19305. [Classes 64 (i) and 123 (ii)] Thimble tube boilers and water heaters having a vertical tube plate A with a multiplicity of rows of inwardly directed thimble tubes B and a surrounding water space D are provided with an outer shell E forming a second water space which receives heat from the space D. The inner boiler may provide water for central heating or may generate steam and the outer space provide a domestic &c. hot water supply. The shell separating the water spaces may have pins, corrugations, circulation tubes, such as tubes G, opening into either space, or similar means for increasing the heat transferring surface. The inner boiler may be heated by fuel or hot gases or both, and the supply of heat controlled by the temperature of the outer water space. A small hole may link the two water spaces to equalize pressures, provide for expansion and for make-up water for the inner space.
Patent GB-251409-A (GB)
Title: Improvements in wood screws and means for manufacturing the same
IPC: F16B25/10
Filed: 1925-06-15
Abstract: 251,409. Guest, Keen, & Nettlefolds, Ltd., and Farrow, G. W. June 15, 1925. Chasers.-A tool 4 for use in cutting main and auxiliary threads on a wood-screw, in which the portions intermediate the threads are parallel to the portions intermediate the adjacent threads, is stepped as shown at 5 and 6. The main thread is cut bv the portion 5, while the auxiliary thread is cut by the portion 6 which is advanced into the cutting position on nearing the point of the screw.
Patent GB-306472-A (GB)
Title: Improvements in release valves for single chamber air pressure brakes
IPC: B60T15/18
Filed: 1928-07-04
Abstract: 306,472. Hardy Maschinenfabrik und Giesserei Akt.-Ges., Geb. Feb. 21, 1928, [Convention date]. Addition to 295,988. Fluid - pressure.- In graduated release valves such as are described in the parent Specification, the control element which is acted upon by the brake cylinder and atmospheric pressures constitutes the valve element. The construction shown in Fig. 3, comprises a pair of pistons 42, 43 operating a lift valve 44. The pressures in the chambers 42', 43<1> are respectively the maximum and the actual train-pipe or auxiliary reservoir pressures; the chambers 44<1> and 44<11> are respectively connected to the brake cylinder and the atmosphere. As the area of the piston 42 is greater than that of the valve 44, the brake cylinder pressure has a resultant tending to open the valve 44 in opposition to the pressure in the chamber 42<1>. The valve 44 may be of greater area than the piston 43, the brake cylinder in this case being connected to the chamber 44". The Specification as open to inspection under Sect. 91 (3) (a) describes (1) a modification of the construction shown in Fig. 3, wherein separate chambers are provided below the valve 44 and above the piston 43, the piston rod 46 having a working fit in the tube extending between the chambers; (2) the construction shown in Fig. 1 (Cancelled) comprising a piston 16 subject on its upper and lower faces respectively to the maximum and the actual train-pipe or auxiliary reservoir pressures and connected to a lift-valve 41 which is subject through the connections 5, 15 respectively to brake cylinder and atmospheric pressure. This subject-matter does not appear in the Specification as accepted.
Patent GB-813611-A (GB)
Title: Improvements in the colouring of textile materials
Inventor: OLPIN HENRY CHARLES
IPC: D06P1/651
Filed: 1955-07-05
Abstract: Cellulose triacetate textile materials are coloured by applying a dye, or substance convertible on the material into a dye, and an ester of a polyhydric alcohol with a lower fatty acid and then steaming.  The process is particularly applicable to printing or padding cellulose triacetate fabrics with disperse or metallized dyes or with oxidation dyes or azoics in which latter case diazotization and coupling or merely coupling may be effected on the material. Specified esters are triacetin, glycerol diacetate, diethylene glycol diacetate, glycerol triformate, diethylene glycol monoacetate, ethylene glycol mono- or di-acetate, and mixtures thereof.  The printing composition may also include methyl, ethyl and propyl alcohols, water-soluble thiocyanates such as an alkali metal, alkaline earth metal, ammonium or zinc thiocyanate, gas-fading inhibitors such as diphenylacetamidine and the usual thickeners such as methyl cellulose and gums.  In the care of oxidation dyes, oxidising agents are also included in the composition.  The cellulose triacetate textiles are made by the wet-, dry- or melt-spinning processes or by the further esterification of lowly acetylated cellulose fibres as described for example in Specifications 448,816, 448,817, 448,917, [all in Group IV], 687,414, 719,853, 721,674, 726,900, 731,930 and 748,772, [all in Group IV (a)].  After colouring, the textiles may be treated by the process of Specification 758,442, [Group IV (a)], to raise their safe-ironing point.  Specification 813,610 also is referred to.
Patent GB-404283-A (GB)
Title: Improvements in and relating to electric discharge apparatus
IPC: H01J7/24
Filed: 1932-07-08
Abstract: 404,283. Cooling systems. LEHMANN, W., 52, Westfalischestrasse, Halensee, Berlin. July 8, 1932, No. 19407. Convention date, July 13, 1931. [Class 29.] In a gas- or vapourfilled electric discharge device which is operable continuously without the use of evacuating means and comprises a liquid-cooled vessel formed wholly of metal and consisting of one or more wall sections welded together, the accumulation of hydrogen is prevented by interposing between the liquid and the discharge space a continuous surface formed of a material which substantially takes up no hydrogen ions from the liquid, or by using a liquid which contains substantially no hydrogen ions. The liquid, which preferably has a small dielectric constant consists of carbon-bisulphide, toluene, benzene, xylene or acid-free oil or of water to which potash or soda lye or ammonia is added. The container 1, Fig. 1, of a vapour rectifier may be formed of or coated with zinc, aluminium or chromium or iron alloyed with one of these metals. Cooling is effected by benzine contained within a jacket 6 to which a condenser 8 is connected. The liquid is completely shut off from the atmosphere and water is removed therefrom by means of phosphorouspentoxide. In a modification, the container is formed of iron or steel and the liquid circulates in a separate chamber which is connected e.g. by welding or soldering to the container by material which does not take up hydrogen ions. The liquid may be circulated through pipes 10, Fig. 2, formed of, or coated with aluminium, zinc, or chromium or coated with enamel and the space 13 between the pipe and the jacket 6 is filled with tin. Specifications 197,298, 263,813 and 316,307, [all in Class 39 (i), Electric lamps, Arc &c.], are referred to.
Patent GB-206890-A (GB)
Title: Improvements in or relating to automatic exchange telephone-apparatus
IPC: H01H67/12
Filed: 1922-07-14
Abstract: 206,890. Wood, A. F., Stott, W., and Telephone Manufacturing Co., Ltd. July 14, 1922. Automatic exchange systems; selectors.- Single-motion selectors comprise a wiper carriage secured to a vertical rack or chain engaging a rotary driving member, and are restored to normal by gravity. As shown, the wiper carriage 18 is secured to a rack 36 and moves between two conducting posts 17 which are engaged by brushes 19 on the wiper carriage for making connection with two wipers 39. Engaging the rack is a pinion 20 which is fast on a shaft carrying two ratchet wheels. Two pawls 27, 28 co-operate with the ratchets, but are normally held out of engagement with them by the member 34. Energization of line relay 11 allows the pawls to engage their ratchets and thereafter repeated energizations of magnet 12 cause pawl 28 to step round the shaft 22 and raise the wiper carriage. The member 45 is to prevent the ratchet from moving too far. The other ratchet and pawl hold the shaft in its operated position. The first movement of the rack allows lever 41 to fall and open off norrmal springs 44. When magnet 11 de-energizes, both pawls are removed from their ratchets and the rack falls by gravity.
Patent GB-719673-A (GB)
Title: Process for the recovery of cyclopentadiene and methyl cyclopentadiene from cracked hydrocarbon fractions
Inventor: JONE THOMAS GARRETT
Filed: 1952-07-31
Abstract: Cyclopentadiene and methyl cyclopentadiene are separated from the vapour phase products of cracking a hydrocarbon fraction by quenching and segregating a vapour phase stream containing C1-C9 hydrocarbons, substantially no dimers of the cyclopentadienes being formed, compressing and cooling this stream to condense out most of the C6+hydrocarbons together with some C5 and a small amount of lower, stripping the lower hydrocarbons from the C6+, passing the latter to a dimerization zone, fractionating from the C10 and C12 dimers, C5-9C hydrocarbons to recover a concentrate of cyclopentadiene and methyl cyclopentadiene dimers which is dedimerized and the resulting monomers separated by fractionation. Gas oil, kerosine or naphtha boiling between 250 DEG  and 700 DEG  F. is cracked in admixture with 50-90 mol. per cent of steam at 1000-1600 DEG  F. and 1-10 atm. total pressure for a period of 1-5 secs.  The product, at a pressure of about 0-100 p.s.i.g., is quenched to about 350-650 DEG  F. by injection of water and cycle oil and fed to a fractionator operating at about 0-10 p.s.i.g. giving an overhead of C1 to C9 containing nearly all the cyclopentadiene and homologue, a cycle oil condensate, and a bottom tar stream.  The overhead is cooled rapidly to 90-135 DEG  F. to condense C10+ hydrocarbons, and steam, and then further compressed and cooled to about 40-210 p.s.i.g. and 90-135 DEG  F. to condense further water and C6+ hydrocarbons, including most of the methyl cyclopentadiene.  The remaining vapours containing cyclopentadiene and mainly C1-C5 hydrocarbons may be purified and dried before compressing and cooling, e.g. with liquid propene or ammonia, to liquify C5+ hydrocarbons, andfr actionating at about 80-90 p.s.i.g. to give a bottom C5+ liquid which may be soaked at 150-250 DEG  F. to dimerize the cyclic dienes, and fractionated to recover cyclopentadiene dimer.  Alternatively, the C5+ liquid may be processed together with the C6+ condensate containing most of the methyl cyclopentadiene.  This condensate is first stripped to remove C3-C5 hydrocarbons, soaked to dimerize cyclic dienes, and fractionated to recover a dimer concentrate.  The homologous dienes are separated from the conconcentrates by dedimerizing at 300-650 DEG F. and fractionation of the vapours.
Patent GB-147493-A (GB)
Title: Improvements in or relating to cylindrical cases for door and like locks
IPC: E05B63/10
Filed: 1920-07-08
Abstract: 147,493. Croning, J. March 22, 1919, [Convention date]. Locks, revolving-barrel; adjusting cases; attaching.-A cylindrical lock is constructed with a cylinder secured in a hole through the door by means of end flanges and by another cylinder or a tube at right angles thereto which is passed through a hole in the thickness of the door and screwed into the first cylinder. The cylinder 4 is screwed at the ends 8, 9 for engagement first with a flange 6, which is screwed on the necessary amount to adjust for thickness of door and held by a pin 5 entering a slot 10 in the cylinder, and the cylinder is then screwed into a flange 2 held by pins 3. A cylinder &c. tube 11, Fig. 2, is then inserted from the edge of the door and screwed into the cylinder 4, this tube preferably forming a guide for the bolt or latch, which is operated by mechanism arranged in the space 7 and controlled by tumblers arranged on the hollow flanges 2, 6.
Patent GB-628673-A (GB)
Title: Improvements in and relating to radio pulse communication systems
IPC: H04J3/00
Filed: 1947-07-21
Abstract: 628,673. Pulse multiplex signalling. BRITISH THOMSON-HOUSTON CO., Ltd. - July 21, 1947, No. 19483. Convention date, March 1, 1943. [Class 40 (v)] In a multi - channel pulse communication system a pulse-forming circuit is provided for each channel to produce a modulated pulse train, and the conclusion of a pulse in one circuit causes the initiation of a pulse in the next. The pulses may be modulated in duration, amplitude or frequency. In the five-channel system described, each channel comprises a multivibrator pulse generator 10 ... 10d, Fig. 1, each multivibrator being used to trigger the next one in the chain through buffer stages 61 ... 61d. The positive pulses from multivibrator 10 of channel one, for example, are passed to differentiator 29 and the resulting triangular pulses clipped by valve 33 at a level determined by the audio signal input applied to valve 34. These valves have a common cathode resistance 44 so that the triangular pulses from valve 33 are duration-modulated. The modulated pulses pass to a limiter 50 and to the modulator 58 of the radio transmitter 57 ... 60. Similar circuits are provided in each of the five channels. In one form of receiver, Fig. 5, a multivibrator 71 is synchronized by every fifth pulse from the radio receiver 70 and supplies gating pulses through limiter 86 to valve 77 which is coupled to valve 76 through the common cathode resistance 84. Valve 76 thus passes only those signal pulses of one channel applied to its grid, which synchronize the multivibrator 71. These are fed to the audio amplifier 74 and reproducer 75 through the integrator 73. Another channel may be selected by opening switch 87 for a time long enough to allow the multivibrator to drift until it is synchronized by the desired channel pulses. In an alternative receiver, Fig. 6, suitable for use when a special synchronizing pulse of greater amplitude or duration or different radio frequency from the channel pulses, is transmitted, a chain of multivibrators MV1 ... MV5 is used. The first is triggered by the filtered synchronizing pulse and triggers the second which triggers the third and so on. The switch 90 enables the appropriate gating pulse to be selected from the multivibrator chain to select any of the channels.
Patent GB-940387-A (GB)
Title: Improvements in or relating to gating circuit arrangements for the selective application of a pulse to one or the other of two control-points
IPC: H03K17/62
Filed: 1960-06-02
Abstract: 940,387. Transistor switching circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 2, 1960 [June 5, 1959], No. 19549/60. Heading H3T. A circuit, for selectively producing a first output pulse of either polarity at a first output point and a second output pulse of opposite polarity and a second output point in response to an input pulse of predetermined polarity and the value of a " setting " voltage which may assume either of two values, comprises a transformer having primary windings 15, 16 connected in the collector and emitter circuits respectively of a transistor 23 and a centretapped secondary winding 13, the opposite ends of which constitute the two output points, and a further transistor 19 connected in series with the transistor 23 through the winding 16 so that when a negative input pulse is applied to the transistor 19 current flows through the winding 16 but not through the winding 15 unless the " setting " voltage applied to the base of transistor 23 is negative with respect to the voltage established at its emitter by means of the catcher diode 24, the winding 15 having more turns than winding 16 and being connected to produce a flux opposed to that produced by winding 16 so that the relative polarities of the pulses produced by the two halves of the winding 13 depend on the magnitude of the " setting " voltage applied to the base of transistor 23. As described, the circuit is used for setting the state of a bi-stable circuit comprising transistors 1<SP>1</SP>, 2<SP>1</SP> in accordance with the state of a similar circuit comprising transistors 1, 2, the " setting " voltage being derived from the collector electrode of transistor 1. Thus, the diode 24 is returned to a potential of +4 volts while the voltage applied to the base of transistor 23 is either + 3 or +7 volts depending on whether transistor 1 or 2 is non-conducting. In a modification, Fig. 2 (not shown), NPN transistors are used in place of the transistors 1<SP>1</SP>, 2<SP>1</SP> and their common emitter resistor is connected to the - 8 volts supply point; the windings 13 and 15 are then combined to form a single winding.