baber/WOPTO huggingface dataset:
Patent GB-649403-A (GB)
Title: Apparatus for detecting faults in electronic circuits
IPC: G01R31/28
Filed: 1948-09-01
Abstract: 649,403. Bridge circuits. NIELSEN, F. M. Sept. 1, 1948, No. 23004. [Class 37] A detecting apparatus for fault finding in electronic apparatus such as a radio set &c. comprises an acoustic indicator operated by the output voltage of the apparatus to be tested, means for preventing current from passing through the indicator for a predetermined value of the output voltage, and means for controlling current through the indicator as a function of any departure of the outpu t voltage from the predetermined value. An oscillator M is connected to the input terminals or any other stage of a radio receiver R, the output terminals 12, 14 of which are connected to a potentiometer 20 in series with condensers 22, 24. The slider 26 is connected in series with a condenser 28 to a diode anode 30 in a valve 32, the cathode of which is connected to the lower end of the potentiometer 20. The diode is shunted with a resistance 34 across which a direct voltage appears and is passed through a filter consisting of resistances 36, 38 and condensers 40, 42 and applied to the control grid of the valve 32, so that its resistance is controlled in accordance with the grid bias. The valve 32 forms one arm of a Wheatstone bridge, the other arms of which are formed by resistances 44, 46, 48, a D.C. source being connected across the diagonal 3, 4. The slider 26 is adjusted so that the bridge is balanced with normal output voltage from the terminals 12, 14. When a defect appears it results in a change of output voltage and current flows through an indicator connected in the diagonal 1, 2. By successively connecting the oscillator M to different stages of the receiver the position of the defect may be located. The indicator may be an optical one, such as a lamp, or as shown a loud-speaker 52 inserted in the diagonal 1, 2 by means of a transformer 50. A switch 54 is included in series with the primary of the transformer 50 and is vibrated by a drive coil 56 with a frequency sufficient to give an audible note in the speaker 52. Glow discharge lamps 58, 60 may be connected across the arms 44, 32 and normally are both lighted. One or other is darkened when a defect occurs and indicates whether a rise or fall in the output voltage has occurred
Patent GB-259013-A (GB)
Title: Improvements relating to rear wind screens for motor road vehicles
IPC: B60J1/00
Filed: 1925-09-15
Abstract: 259,013. Saunders, H. T., and Rotax (Motor Accessories), Ltd. Sept. 15, 1925. Wind-screens.-In a wind-screen for the rear seats of motor-vehicles of the kind in which two sections or panels are attached to the back of the front seat by means of supporting arms hinged to the seat back and to the panels, two independent panels f, g are each supported by arms h, i respectively in such a manner that the panels can either be swung inwardly to overlap in proximity to the back of the front seat b, or outwardly into alignment to constitute a transverse screen, in which position they are detachably secured to the sides a of the vehicle. Each panel is framed by a bar g<1> bent to the form of an unclosed rectangle and having its ends r, s projecting downwardly, the ends r for permanent connection to the arms h, i, and the ends s for connecting to the sides of the vehicle. Each of the arms h, i may be formed in two parts so as to be extensible, and the arms are arranged in planes at a different level to permit the inward folding. Preferably the off side panel folds over the near side panel so that ingress to or egress from the near side door c can be obtained by moving forward the panel f only. Spring fastenings are employed for securing the depending forward ends of the arms h, i in sockets j on the back of the front seat and for securing the pins s to the vehicle sides. An edging x of flexible material may be provided on each panel and fitted with snap fastenings y to secure the inner vertical edges together when the panels are aligned. A waterproof apron may also be attached to the lower edges of the panels by snap fastenings z<1>.
Patent GB-203511-A (GB)
Title: Improvements in change speed gearing
IPC: B62M11/14
Filed: 1922-08-24
Abstract: 203,511. Cowburn, G. M. Cameron-. Aug. 24, 1922. Variable-speed and reversing epicyclic gearing suitable for motor vehicles comprises a plurality of separate friction trains having driving sun gears 2, 3, 4, 5, Fig. 1, integral with driving-shaft 1 which is encircled by driven pulley &c. 16. The first train comprises a loose internal gear 10 and conical planet gears 6 carried by the internal gear 11 of the second train. The planet gears 7 of the second train are carried by the internal gear 12 of the third train. The planet gears 8 of the third train are carried by the pulley 16. Low, intermediate and high speeds are obtained by applying brakes 21, 20, 19 alternatively. Reversed driving is obtained by braking a member 18 carrying planet gears 9 engaging the pulley 16 directly. The sets of gearing are kept in rolling contact by springs 27, the thrust being taken by a flange 49. The brakes 19, 20, 21 comprise bands each having a buffer spring 32, Fig. 2, and each being operated by a Bowden wire 51, 52, 53. These wires and a wire 54 for operating the vehicle brake are led to a control device shown also in Fig. 3. The wires pass over eccentrics 37, 38, 39 which are set in different angular positions and turned in unison by a hand lever 40. Alternatively, the eccentrics may press against levers to which the wires are secured.
Patent GB-185323-A (GB)
Title: Machine for manufacturing chain mail in tubular shape or in band shape
IPC: B21F31/00
Filed: 1921-08-30
Abstract: 185,323. D³rr, K. Aug. 30,1921. Making metal fabrics. - In a machine for making chain mail, the fabric-holders are all situated on one side of the mail for accessibility and comprise a group a for the row already formed and a group d for the row being formed, the members of which advance singly as each new ring is inserted by the usual tools f. When a row of rungs g sloping inwards is being formed, a lifter c is necessary to ensure engagement of the rings by the holders a. The holders are slidably mounted in a member e, shown straight for plain mail, but which may be circular for making tubular mail.
Patent GB-328881-A (GB)
Title: Improvements in combined calendar and money box, savings bank or other collection box
IPC: G07F17/16
Filed: 1929-07-27
Abstract: 328,881. Gade, E. K. July 27, 1929. Date indicators.-In a calendar and money box &c. combination of the. kind comprising a receptacle having movable, sets of calendar inscriptions which after the insertion of a coin or coins are manually adjusted simultaneously and in which the date figures are inscribed on an endless flexible band provided with perforations engaging a sprocket operatively connected with the operating means, an independent manually operated means is provided whereby the relative adjustment of the sets of indications may be effected only when the numerals 28 to 31 are exposed to view. As shown in Figs. 1, 2 and 3, an apertured casing has a double slotted coin hopper formed in two parts 7, 7a one of which is secured to a spindle 14 and the other is associated with the operating member 9. The spindle 14 carries a sprocket pinion 15 connected by a chain 16 to a sprocket wheel 17 on the spindle of a drum 19 inscribed with the day names. The insertion of a coin into the slot forms a driving connection between the two parts of the hopper. A sleeve 20. Fig. 5, on the end of the spindle 14 is provided with four projecting pins 21 adapted to engage perforations 22 or slots 32 at one side of a flexible band 23 on which the date figures 1 to 31 are inscribed The band 23 passes round guide pulleys and a projection 25 on the band at each complete turn engages a toothed wheel 26 to advance a month indicating drum 28. The sleeve 20 is coupled to the spindle 14 by means of a pin 31 thereon engaging a slot in the end of the spindle. To permit adjustment of the band at the beginning of each month eight of the perforations corresponding to the numerals 28 to 31 are slotted and the edge of the band recessed at 33 to permit the insertion of a key 34 the stem of which has a bayonet slot adapted to engage the pin 31 which can then be withdrawn from the slot to effect the necessary relative movement. The movement is effected in steps by reason of the pin 31 engaging on each half turn with a pin 36 mounted for limited movement in a slot in the casing.
Patent GB-186798-A (GB)
Title: Electric sewing machine
IPC: D05B69/18
Filed: 1921-09-02
Abstract: 186,798. Fairweather, W., (Singer Manufacturing Co.). Sept. 2, 1921. Sewing-machines; driving; illuminating-apparatus; frames; stands.-A self-contained electrically driven, controlled, and lighted sewing-head A is run from a single supply circuit and can be mounted either in a drop-head ' cabinet or a portable case, the motor control in each case being operated by a knee-lever. The leads of a lighting attachment are connected through a conduit 42 to a distributing-head 43, 44, Fig. 3, to which are also connected the leads 13, 34 of a motor and its controller 19 respectively, in parallel with the lighting circuit. The controller 19 is mounted in a compartment 33 of the hollow base and comprises a bell-crank contactor-lever 18, which is actuated to swing over studs 17 on a resistance element 16, by a push-rod 22 and a link 24. Lugs 68<1>, Fig. 3 on the sewing-head are hinged to the rear edge of a portable base B and lugs 68, 71 rest on ledges on the base. The pushrod 22 is actuated by a lever 61 on a rock-shaft 58, which is journaled in the base B and rocked by a knee-lever the hub 65' of which is connected thereto by a bayonet-joint connection 63, 64. When the sewing-head is pivoted in a cabinet, Fig. 7, a rod 82, journaled in a spring-pressed support plate 76, is in alignment with the rod 22 only when in operative position and its other end then registers with a tappet arm 88 on a rock-shaft 87, actuated by a knee-lever 90. The parts 24, 61, 82, 90 are normally held in inoperative position by means of springs. The leads 13, 34 41, Fig. 11, on the member 43 of the distributing head are connected as shewn to the terminal plates 47. Terminal plugs 49, pivoted to the plates 47, project either horizontally, Fig. 3, or vertically downwards, Fig. 7, to receive the socketed connector 56, 95 for the supply circuit.
Patent GB-910310-A (GB)
Title: Modified carbon black
Inventor: WATSON JOHN WILLIAM
IPC: C09C1/56
Filed: 1958-07-22
Abstract: A hydrophobic black suitable for reinforcing rubber has chemically combined hydrocarbon groups on its surface.  It may be produced in the presence of a Friedel-Crafts type catalyst by treating black with an alkylating agent or by treating a halogenated black with an aromatic hydrocarbon.  The black treated may be furnace, thermal, or channel black.  The Friedel-Crafts type catalyst may be aluminium trichloride, antimony pentachloride, ferric chloride, tellurium dichloride, bismuth trichloride, boron trifluoride, hydrogen fluoride, sulphuric acid, phosphoric acid, or phosphorus pentoxide. The alkylating agent may be ethylene, propylene, butylene, 3-methyl-1-butene, cyclopentene, cyclohexene, cyclopropane, polyethyl benzene, polyiso propyl benzene, methyl iodide, ethyl chloride, 1,3-dibromo propane, isopropylidene chloride, propyl bromide, butyl chloride, methanol, ethanol, n-propyl alcohol, isoproypl alcohol, butyl alcohol, cyclobutyl carbinol, a -phenyl propanol, diethyl ether, isopropyl ether, n-amyl ether, methyl chloroformate, ethyl acetate, ethyl chloroacetate, butyl stearate, dimethyl sulphate, diethyl sulphate, n-butyl sulphite, or n-butyl phosphate.  The alkylating agent may be dissolved in hexane, heptane, or nitro-benzene.  Halogenated black prepared by reacting black with chlorine or bromine may be reacted with benzene or naphthalene. Examples are given.  Specification 910,309 is referred to.
Patent GB-507126-A (GB)
Title: Improvements in the manufacture of organic esters of cellulose
IPC: C08B3/22
Filed: 1938-08-09
Abstract: 507,126. Cellulose esters. BRITISH CELANESE, Ltd. Aug. 9, 1938, No. 23458. Convention date, Aug. 14, 1937. [Class 2 (ii)] Cellulose-acetates and other organic esters of cellulose are stabilized by subjecting them, after ripening, to a treatment with a tertiary amine in which at least two aryl or aralkyl radicles are attached to a tertiary nitrogen atom. Examples of such amines are diphenyl aniline, dibenzyl aniline, benzyl methyl aniiine, benzyl ethyl aniline and benzyl phenyl aniline. The amine may be added to the solution of the ripened esters before precipitation, or it may be incorporated with the ester during precipitation, or after precipitation preferably with the ester in finely divided form and in suspension. During the ripening process, small quantities of inorganic salts such as aluminium chloride and zinc chloride, or hydrochloric acid may be added since these assist in reducing the formation of unstable compounds ; and the catalyst used for esterification may be whoily or partly neutralized prior to the addition of the amine. Cellulose esters which are to be treated after precipitation, may during precipitation be treated with hypochlorite &c. to improve their colour. The Specification as open to inspection under Sect. 91 refers also to the treatment of nitrocellulose and of cellulose ethers. This subjectmatter does not appear in the Specification as accepted.
Patent GB-768159-A (GB)
Title: Improvements in and relating to electric lamp sockets
Inventor: HEATH CLARENCE WILLANS
IPC: H01R33/46
Filed: 1954-08-12
Abstract: 768,159. Lamp-holders; direct connections between conductors. CARR FASTENER CO., Ltd. July 11, 1955 [Aug. 12, 1954], No. 23496/54. Class 38 (1). In a lamp socket comprising a metal housing 1 with bayonet slots 2 and closed at one end by an insulating member 3, a central contact 7 is slidable in a bore 6 in member 3 and comprises a tubular shank 8 bent up from sheet metal and having at its inner end a tongue 9 which, when bent over as shown, provides a contact surface and also retains a coil spring 10 on the shank. The spring urges the contact inwardly of the housing, such movement being limited by a sleeve 11 formed on the outer end of the shank and also serving as a terminal. In attaching a lead, the bared end thereof is inserted through a hollow plug 12 and bent over the outside so that when the plug is inserted in sleeve 11, the lead is trapped between the two. Fig. 5 shows a modified contact on the inner end of the shank 8a which consists of lugs 8b bent outwardly to retain spring 10 on the shank and provide contact surfaces 8c.
Patent GB-295640-A (GB)
Title: Improvements in terminal boxes for multi-core cables
IPC: H02G15/02
Filed: 1928-08-15
Abstract: 295,640. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Aug. 15, 1927, [Convention date]. Junction boxes.-A distribution box for multicore cables comprises a chamber g of insulating material having a shank portion h fitting into a cup c on a sleeve a secured to the cable b. Bushes k soldered to the cable cores are screwed to the base of the chamber g. The branch conductors i pass out through the bushes k. A metal cap e, if tightly secured and fitted with a gasket f, is provided with a vent o that serves also for the introduction of insulating material. The shank h is formed with a petticoat n.
Patent GB-668157-A (GB)
Title: Improvements in or relating to rotary drying machines for textile materials
IPC: F26B11/18
Filed: 1950-09-26
Abstract: 668,157. Rotary drying apparatus. PRELLER, H. J. Sept 26, 1950, No. 23537/50. Class 34(ii) A tumbler drier for textiles &c. has a lint trap comprising a curved stationary screen 8 in the air outlet 3, 4 of the drum casing 2, the screen being spaced a small distance from the surface of the drum 1 so that fluff &c. accumulating on the screen is rolled into rolls between the screen and drum. The screen 8 is hinged at 9 to the casing 2 and its upper edge 10 is resiliently suspended by supports 11 the suction of the fan lifting the screen a small distance. When the apparatus is shut off the suction on the screen is reduced, its distance from the drum narrowed and the fluff on the screen is rolled into rolls 12 between the screen and the drum 1 which transports them to a slot 13 whence they fall into a receptacle 14 having a cover 15. Further compression of the rolls 12 takes place between the drum 1 and a curved plate 16 which may be part of the casing between the screen 8 and the slot 13.
Patent GB-892020-A (GB)
Title: Electric detonators
IPC: F42B3/103
Filed: 1958-07-22
Abstract: 892,020. Electric blasting detonators. OLIN MATHIESON CHEMICAL CORPORATION. July 22, 1958 [July 26, 1957], No. 23578/58. Class 9(1). An electric detonator has a thermoplastic case 8 closed by a thermoplastic plug 1 carrying the lead wires 2 connected by a bridge wire 4 embedded in the explosive filling 9, the closure being made water tight after assembly by fus ing the plug with the case To do this a metal ring 5  or a couple of turns of wire are embedded in the peripheral surface -of the plug and the assembly of plug and case is placed coaxially within an induction coil 10. By connecting the coil 10 to an electric energy source, a current is induced in the ring 5. The heat produced softens the thermo-plastic and the plug and case fuse together. Both the plug and case may be moulded from ethylcellulose, which may be used as insulation 3 for the leads 2 and the ring 5 may be embedded in the plug during the moulding process. The ring 5 may be a nickel-chrominum-steel. Polyvinyl chloride, polyvinyl acetate, polyvinyl chloride-acetate, polystyrene, polyethylene, methyl styrene, acrylonitrile and polymethyl styrene are also said to be suitable thermoplastics from which to mould the case and plug.
Patent GB-1218417-A (GB)
Title: Process for the simultaneous preparation of vinyl chloride, 1,1-dichloroethylene and 1,2-dichloroethylenes
Inventor: ANTONINI ALBERT
IPC: C07C21/073
Filed: 1968-05-17
Abstract: 1,218,417. Chlorination and dehydrochlorination process. PRODUITS CHIMIQUES PECHINEY - SAINT - GOBAIN. 17 May, 1968 [13 July, 1967], No. 23678/68. Heading C2C. Vinyl chloride, 1,1-dichloroethylene and 1,2- dichloroethylenes are produced in a simultaneous chlorination and dehydrochlorination process in which ethylene, chlorine, 1,2-dichloroethane and 1,1,2-trichloroethane are fed in molar ratios Cl 2 /C 2 H 4 , Cl 2 /CH 2 Cl-CH 2 Cl + CHCl 2 -CH 2 Cl and 1,1,2 - trichloroethane/(1,2 - dichloroethane) + 1,1,2 - trichloroethane of 0À4 to 2À0, 0À5 to 1À5 and 0À05 to 0À95 respectively, to a mixing zone maintained at 80‹ to 300‹ C. and the mixture produced is introduced into a reactor devoid of filling in which the maximum temperature is from 370‹ to 500‹ C. Chlorinated ethanes and other chlorinated ethylenes may be produced as by-products. The reaction may be carried out in the presence of a small quantity of oxygen and/or in the presence of an inert gas, e.g. carbon monoxide, carbon dioxide, nitrogen or argon. The reactor efluent may be separated into gaseous and liquid fractions by cooling and washing the effluent with a solvent, e.g. a chlorinated hydrocarbon such as 1,2-dichloroethane or a product of the reaction, and the liquid fraction may be separated into its individual components by fractional distillation. Unreacted ethylene, hydrogen chloride and/or the chlorinated hydrocarbons produced may be submitted to an oxychlorination reaction to obtain chlorinated ethanes and/or ethylenes, e.g. 1,2-dichloroethane and 1,1,2-trichloroethane, which may be recycled to the chlorination reactor. Alternatively, unreacted 1,2-dichloroethane and/or 1,1,2-trichloroethane and/or ethylene in the reactor effluent may be recycled directly.
Patent GB-659369-A (GB)
Title: Improvements in or relating to electrical regulating systems
IPC: H02P9/20
Filed: 1949-09-14
Abstract: 659,369. Automatic voltage control systems. BENDIX AVIATION CORPORATION. Sept. 14, 1949, No. 23726. Convention date, Oct. 29, 1948. [Class 38 (iv)] Regulation of an alternator field winding 3 is achieved by resistors 37, 39, connected in series with the winding 3 and by a main relay switch 51 which closes a shunt circuit for the resistors when the voltage drop across them exceeds a predetermined value. The relay switch 51 is provided with a main winding 45 connected in series with the resistors and winding 3, and an auxiliary winding 56 connected in parallel with the resistors when a relay 57 is energized, the relay 57 being connected in series with an adjusting resistor 61 across resistors 37, 39. The windings 45, 56 are in additive relation and cause the resistors 37, 39 to be short-circuited at predetermined voltages across them by attraction of the spring-biassed switch 51, thereby increasing the field energization. The field winding 3 of the alternator is excited from an exciter 4 having a field winding 5, the output from the alternator being maintained constant in a known manner by a loop including rectifiers 21, carbon pile regulator 12, and antihunting transformer 23. The insertion of resistors 37, 39, in the field circuit of the alternator enables the regulator 12 to effect regulation of the alternator output over a wide speed range. Specification 608,508 is referred to.
Patent GB-715208-A (GB)
Title: Improvements in or relating to methods of developing exposed photographic film
IPC: G03D13/14
Filed: 1951-10-12
Abstract: 715,208. Developing photographic films of regenerated cellulose. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 12, 1951 [Oct. 16, 1950]. No. 23827. Drawings to Specification. Class 98(2) A method of developing a regenerated cellulose film which is wound with a separating apron on to a reel which is then introduced into a developing bath is characterized in that the film is immersed in a water bath and the film undergoes its usual elongation when wetted before it is wound on to the reel so that it does not crinkle between the turns of the apron. Preferably the apron has protuberances on one face formed by indenting the opposite face and spaced both longitudinally and transversely of the apron e.g. in a zig-zag manner so that even for the two largest turns to be expected in use the pattern does not recur. If the films to be used are of such width as to bear several ranks of images protuberances may also be provided on the apron at points between the ranks.
Patent GB-419772-A (GB)
Title: Air deflectors for automobiles
IPC: B60J1/14
Filed: 1933-08-28
Abstract: 419,772. Fastenings; hinges. MORRISON, W. L., 1923, Carroll Avenue, Chicago, U.S.A. Aug. 28, 1933, No. 23848. Convention date, Aug. 31, 1932. [Classes 44 and 65 (ii).] An air deflector for automobiles comprises two glass plates 3, 4 pivotally and frictionally mounted on substantially vertical axes in a window opening and adapted to close the window opening completely when inoperative. A vertically-sliding H-section bar 21, Figs. 24, 25, which acts as a sealing means for the adjacent vertical edges of the plates when closed, is locked in its sealing position by a spring-pressed pin 25 on the bar engaging in a hole 28 in a member 29 fixed to the window-frame 2. The lower edges of clamps 6 fixed to the plates 3, 4 engage the bevelled edge of a rubber gasket 38, Fig. 26, when the plates are closed and the plates may be locked in this position by locking members 30 which pivot about screws 32 fixed to the clamps 6 and are held locked by a ball 36 spring-pressed into a recess 37, a spring 33 being provided to hold each member 30 in its inoperative position. The movement of each member 30 is limited by a projection 39 thereon engaging a slot in the respective clamp. The upper pivot of each plate comprises a pin 8, Fig. 15, connected to the window-frame and spring- pressed into a recess 7 in a member 5 clamped to the plate, while the lower pivot comprises a pin 11 fixed to a clamping member 6 and projecting through the window-frame, a spring 12 on the pin being compressed between a nut 13 and the window-frame or other fixed part. The plates may be rotated by hand or through cranks and worm-gearing connected to the pins 11.