baber/WOPTO huggingface dataset:
Patent GB-1170714-A (GB)
Title: Takedown Reel
IPC: B65H75/22
Filed: 1968-06-20
Abstract: 1,170,714. Cable reels. FURUKAWA DENKI KOGYO K.K. and TOKO KOGYO K.K. 20 June, 1968 [20 June, 1967], No. 29441/68. Heading B8M. A dismantlable reel comprises a pair of resilient drum-forming plates 1 hinged together at opposite ends thereof, and adapted to be shaped into a drum 7 against the resiliency thereof and to be detachably secured to a pair of flanges 8. The hinges 3 may be formed integrally with the plates 1 or secured thereto by screws, welding or adhesive. Each flange 8 is formed from an annular plate 9 with rims 10, 11 secured to the inner and outer peripheries. The inner rim 10 projects axially of the flange to form a cylindrical member 16 which enters the end of the drum 7. A pair of recesses or slots 17 may be provided at diagonally opposed locations on the member 16 to accommodate the hinges 3. The flanges are bolted together through the drum 7, by bolts passing through holes 14 in cross-pieces 15 in the centre of the annular plate 9. The drum-forming plates are preferably made of steel.
Patent GB-648049-A (GB)
Title: Improvements in and relating to angle modulation demodulators
IPC: H03D3/08
Filed: 1948-11-12
Abstract: 648,049. Frequency and phase modulation. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 12, 1948, No. 29452. Convention date, Nov. 12, 1947. [Class 40 (v)] Angle-modulated waves are demodulated by applying them through a tuned transformer to a balanced pair of rectifiers, and the common return circuit, from the rectifiers includes a choke coil or a valve circuit for suppressing audio or like current variations. In Fig. 1, the modulated input waves are applied at 1, 2 to a tuned transformer 4, the primary coil being earthed at one side by a condenser 8 and connected at its live side by a condenser 7 to a centre-tap on the secondary coil. The secondary has its opposite ends connected to rectifiers 11, 12 and condenser-shunted load resistors 13, 14, and the common return circuit includes a radio-frequency choke 17 and an audio choke 18. The latter has the effect of preventing amplitude changes in the received wave from influencing the discriminator output, which is taken off at the terminal 19. In Fig. 3, the load resistors 13, 14 are connected between the two halves of the secondary coil 5, and the input from the primary coil is applied to the common cathodes of the rectifiers 11, 12. The choke 18 is replaced by a triode valve circuit 21, the grid of which is connected by a condenser 24 to the outer end of a cathode resistor 22 and by a resistor 23 to the cathode. The triode presents low resistance to unidirectional current, but high resistance to alternating current. The triode may be replaced by a pentode valve having its screen grid held at a positive voltage and its two other grids connected directly to the cathode.
Patent GB-302461-A (GB)
Title: Improvements in and relating to the method of and apparatus for the production of two or more fold yarn
IPC: D02G3/36
Filed: 1927-11-04
Abstract: 302,461. Airaldi, P. Nov. 4, 1027. Special yarns, producing; rollers and roller, heads. - In a machine for producing two or more fold yarn by the combination of twisted yarn with roving, such, for example, as described in Specification 14700/88, a twisted yarn Y is drawn from a bobbin Y<1> by a driven roller or rollers R and is united with a roving C at the nip rollers N of the drawing-rollers, or at the pot eye after passing over a roller R<1> in known manner, as shown in broken lines. The latter arrangement is adopted when it is desired to vary the rate of leed of the yarn in relation to that of the roving. The roller R may be mounted eccentrically so as to draw the yarn in a varying manner and thereby to produce fancy yarn. The yarn and hoving may be of the same or different material such as worsted, cotton, silk, or artificial silk, and more than one yarn may be used with one roving.
Patent GB-837442-A (GB)
Title: Improvements in or relating to the manufacture of electrical elements
Inventor: WALTON HENRY ANTHONY
IPC: H05K3/00
Filed: 1956-09-27
Abstract: 837.442. Etching; transfers. BELLING & LEE Ltd. Sept. 20, 1957 [Sept. 27, 1956], No. 29496/56. Drawings to Specification. Class 100(2) [Also in Group XXXVI] A method of manufacturing a printed electrical element includes the step of transferring by pressure only from a suitably pliant support to a surface of an electrical conducting material supported on a face of a sheet of electrical insulating material, a reproduction of the element as a film of proteinaceous material having an etch resistant solid in particle form suspended thereon, and etching away the parts of the conducting material not covered by the proteinaceous material. The element to be printed is drawn in black ink on white drawing paper to ten times the required size and reduced as a negative photographic plate. A gelatinized paper having as resist suspension a synthetic siena iron oxide pigment is made sensitive to light and dried on a glass plate. The sheet is exposed through the negative and immersed in water between 15-22‹C. to remove the unexposed gelatine. A plate of the material known under the Registered Trade Mark "Bakelite" coated with copper is cleaned with an aqueous solution of acetic acid and common salt, and kept under water until required, when it is immersed in a solution of potassium cyanide and silver nitrate, which deposits a fine silver layer to prevent deposition on the copper of a thin relatively insoluble gelatine layer. The gelatinized paper is placed on the silversized copper face by squeegeeing or rolling and after 2 to 3 minutes the assembly is immersed in water at 40-46‹C. for 2 minutes, when the backing paper is peeled off, and the remaining assembly dried in warm air. The assembly is then immersed in an etching bath of 38‹ Baume aqeuous solution of ferric chloride to remove any superficial film of soluble gelatine, and thereafter immersed in 44‹ Baume ferric chloride until all the uncovered copper is removed. The etched sheet is washed in water at 90 ‹C. to remove the resist, and dried in air. Nickel may be deposited to protect the copper element. The resist may comprise lead chrome particles, and the gelatine may be replaced by other proteinaceous materials such as fish glue or albumin, or, non-proteinaceous polyvinyl alcohol. The etching solution may be 44‹ BaumÚ ferric chloride diluted to 38‹ BaumÚ with concentrated hydrochloric acid, ethyl alcohol, or methylated spirits, when only one etching step is necessary.
Patent GB-696994-A (GB)
Title: Preparation of colorless, color-stable bulk polymers of methyl -a-chloroacrylate
IPC: C08F20/22
Filed: 1951-12-17
Abstract: Methyl alpha-chloroacrylate is bulk polymerized to a hard, transparent, colourless, colour-stable polymer by maintaining monomeric methyl alpha-chloroacrylate, which is free from auto-oxidation products, at a temperature which is not higher than -10 DEG  C. at all times during which it is exposed to an oxygen-containing gas, and excluding oxygen from contact with the monomer at all times at which its temperature exceeds -10 DEG  C. until polymerization is substantially complete.  Preferably the methyl alpha-chloroacrylate is maintained at a temperature not exceeding -30 DEG  C. when in contact with oxygen.  Methyl alphachloroacrylate may be obtained free from autooxidation products either by preparing the monomer by dehydrochlorination of methyl alpha, beta-dichloropropionate, steam distilling the methyl alpha-chloroacrylate produced, removing the water by freezing and the use of dehydrating agents, and finally distilling the ester under reduced pressure, the steps of this process being carried out in an oxygen-free atmosphere when the temperature of the ester exceeds -10 DEG  C., or by freezing the crude ester containing auto-oxidation products and rejecting the mother liquor containing the impurities. Polymerization is carried out by pouring the ester at a temperature of less than -10 DEG  C. into a mould, replacing any air remaining in the mould by an inert gas before the temperature of the ester is permitted to rise above -10 DEG  C., and then polymerizing by any known method, if desired with the aid of heat, actinic light, catalysts such as benzoyl peroxide and di-tert.-butyl peroxide, and adhesion preventatives such as oily polysiloxanes and sulphosuccinic esters.  The polymerization may be carried out initially at moderate temperatures such as 55 DEG  to 60 DEG  C. and finally at 120 DEG  to 130 DEG  C. Specifications 618,965, [Group IV (b)], and 636,319 are referred to.
Patent GB-1512787-A (GB)
Title: Time registration device for recording presence or work time
IPC: G07C1/06
Filed: 1975-07-15
Abstract: 1512787 Time clocks SIMPLEX TIME RECORDER CO 15 July 1975 [16 July 1974] 29588/75 Heading G4T A time registration device records the prescence or work time by means of a controlled printing device on to a line of a registration card corresponding to a particular day. The card has a series of horizontal lines and is to be printed on the forward and reverse sides. A card is inserted between rails 44 to engage a card support 38. In so doing it pivots lever 48 so that arm 48b engages a tooth of bar 54. Further downward movement of the card causes micro-switch 62 to be operated. This controls electromagnet 88 which causes head 76 to carry out a printing operation on the card 12. A drive mechanism to control the device has a day-program and month-program wheels 108, 112 respectively. The day-program wheel is rigidly attached to ratchet wheel 110 and gear wheel 106. Wheel 106 is in engagement with gear 94 through gear 102. A drum 96 is attached to gear 94 and has a string 98 wound therearound with one end fixed to an extension 34 of support 38. Thus when an electromagnet 120 is operated once per day arm 120a is retracted. Lever 122 having a tooth 124 indexes ratchet wheel 110 which causes through the gearing a one line upward movement of support 38. Gear 106 has two sectors 106a without teeth to allow the support to fall after every 16 days. Months-program wheel 112 is biased toward day-program wheel 108 by spring 116 and is driven thereby through friction. Wheel 108 has 32 sectors. Sectors 28-32 are of increasing height and cam portion 32 is narrower than the other sectors. Wheel 112 is divided into 4 year sectors there being twelve slots 160 in each sector. The depth of the slots indicates the number of days in the relevant month. The slot is deeper the less number of days there is in the month. Scanning lever 142 has a nose portion 142a that engages in the slots 160. Scanning lever 140 engages wheel 108 and has a micro-switch 150 that is operated by scanning lever 142. The dimensions of the parts are such that when the end of a month is reached lever 140 is pivoted outwardly to an extent such that switch 150 is operated by lever 142. This causes a series of pulses to be sent to electromagnet 120. Wheel 108 is thus indexed round until lever 140 is on cam sector 32a. This lifts lever 142 clear of wheel 112 so that further indexing of wheel 108 causes wheel 112 to be indexed to the next slot and thus the next month.
Patent GB-633033-A (GB)
Title: Seam for thin sheets, especially for making floating tubes from synthetic material and synthetic rubber
IPC: B29D23/00
Filed: 1947-11-07
Abstract: 633,033. Seaming non-metallic sheet material. WIESENDANGER, H. Nov. 7, 1947, No. 29690. [Class 42 (i)] [Also in Group XXVIII] The edges 1, 2 of a thin sheet of synthetic rubber to be joined together to form a tube are wound around a rubber cable 3, the roll thus formed is enclosed in a protective cover 4 and clamps 5 are applied at intervals.
Patent GB-338288-A (GB)
Title: Improvements in spray carburettors
IPC: F02M9/02
Filed: 1929-10-01
Abstract: 338,288. Ehrich & Graetz Akt.-Ges. Oct. 12, 1928, [Conventiondate]. Spray carburettors. -A main nozzle a projects into a mixing tube b which is open to the atmosphere through bores c and extends into the mixture stream which flows to the engine through the outlet f. The tube b is closed at the top. and is provided with outlet orifices e which lie in the direction of flow of the mixture stream. The throttle piston g, which comprises a mixture-control and an air-control portion, embraces the tube as a dome when in its lowered positions, whereby a high vacuum on the main nozzle is produced. For starting and slow running, mixture is supplied through a duct m by a nozzle h arranged transversely to an air inlet k controlled by a screwed needle valve.
Patent GB-757522-A (GB)
Title: Disc type brakes for vehicles
IPC: F16D55/00
Filed: 1953-10-28
Abstract: 757,522. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Oct. 7, 1954 [Oct. 28, 1953], No. 29753/53. Addition to 721,323. Class 103 (1). An improvement in a disc brake of the type described and claimed in the parent Specification, wherein provision is made for automatic adjustment to compensate for wear of the friction pads. Fig. 1 illustrates a disc brake of the type described in the parent Specification, modified to incorporate automatic retraction and wear adjustment mechanisms 37 of the type described in Specification 747,972. Fig. 2 being an enlarged section through A-A of Fig. 1, shows the mechanical actuation means 31, 30, 22, 16 in which automatic adjustment for wear of the friction pads is incorporated. This alternative construction to that shown in the parent Specification includes a pretensioned clock-type spring 35 arranged to screw the adjusting screw 22 into the spindle 19 as soon as wear of the friction pads 12 causes the hollow end plug 25 of the adjusting screw 22 to be unseated from its recess 32 provided in shaft 30.
Patent GB-336086-A (GB)
Title: Improvements in or relating to clutch devices more particularly for use with power presses and similar machines
IPC: F16D11/16
Filed: 1929-10-02
Abstract: 336,086. Taylor & Challen, Ltd., and Challen, W. B. Oct. 2, 1929. Clutches, positive.-In sliding-key clutches for presses and like machines, alignment of the key 5 in its slot 4a is maintained during actuation by disposing engaging-springs 8 at each end thereof. The key has a surface 5a to coact with the usual disengaging-cam (not shown), and ears 5<b>, to which are secured bolts 6, the springs 8 bearing on the ends of recesses 4b in the shaft 4 and on the washers 7 of adjusting-nuts 9 threaded on the bolts 6. Two or more springs may be disposed at each end of the key.
Patent GB-152687-A (GB)
Title: Method and apparatus for cooling liquids and charging the same with gas by the use of snow-like carbonic anhydride
IPC: F25D3/14
Filed: 1920-10-21
Abstract: 152,687. Soc. des Gaz Radioactifs Naturels de ColombiÞres sur Orb. Oct. 22, 1919, [Convention date]. Aerating processes.-Liquids are cooled and aerated by immersing in them a device 2 having a perforated bell-shaped head 3 which is filled with solid carbon dioxide by pressing it into a mass of carbon dioxide show and is then coated with ice by immersing it in water cooled almost to the freezing- point.
Patent GB-1260855-A (GB)
Title: Stone cutting machine
Inventor: RAMAGLIONI VINCENZO
IPC: B28D1/22
Filed: 1968-06-22
Abstract: 1,260,855. Working stone. RAMAGLIONI & SON. 17 June, 1969 [22 June, 1968], No. 29898/68. Heading B5E. A machine for cutting blocks of stone, concrete or the like, comprises upper and lower spaced movable knives and two transversely spaced movable knives 15, the cutting edges of the knives being in the same plane and defining a rectangular opening 12 for reception of a block to be cut, and means for operating the knives to press on the block simultaneously. The block is fed to the cutting plane by a chain conveyer operated by a lever through a ratchet mechanism. The knives 15 are carried by holders 14 which are slidable in slots 13 in a frame consisting of a pair of plates 3a held spaced apart by L-shaped brackets to form the slots 13. The upper and lower knife holders have recesses 18 respectively engaged by arms 21 of threearmed levers 20 mounted on pivots 19 on the plates. The arms 22 of vertically aligned levers 20 are connected to hydraulic rams 24 and the arms 23 are connected by links 30 to the transverse knife holders 14 whereby, upon operation of the rams, the knives are moved simultaneously to engage the block to be cut and simultaneously withdrawn. In another embodiment, the knife holders are moved by a rope which engages pulleys on the water ends of the knife holders and has each of its ends wrapped in the same direction around and connected to a drum, the drum being rotatable to cause the knives to engage the block by a lever connected to an hydraulic ram.
Patent GB-850090-A (GB)
Title: Improved method of packaging articles
IPC: B65B53/02
Filed: 1957-09-24
Abstract: 850,090. Packaging. BROCK, H. W. Sept. 24, 1957 [Oct. 2, 1956], No. 29985/57. Drawings to Specification. Class 94(1). Articles such as biscuits are placed in an open receptacle formed of thermoplastic material in the heat-contractable state and the receptacle is closed and then heated to cause it to shrink into close engagement with the articles, an air vent being provided between the interior and exterior of the receptacle to allow air to be expelled during the shrinking operation. Receptacles in the form of bags or cartons may be closed by seaming or folding in the usual manner using adhesives or heat-sealing techniques, the air vent being in the form of a pin hole. Preferably, however, flanged receptacles are formed in succession by deforming a thermoplastic web and closed after the insertion of the articles by applying a covering web to the flanges and sealing by applying heat and pressure, the sealing of a small portion of the flange of each receptacle being deferred until after the receptacle has been heated to cause it to shrink. The apparatus described and claimed in Specification 850,089 is employed.
Patent GB-1277317-A (GB)
Title: Improvements in or relating to toy railroad assemblies
IPC: A63H19/00
Filed: 1970-06-19
Abstract: 1277317 Toy railway assembly CHILD GUIDANCE TOYS Inc 19 June 1970 [12 Sept 1969] 30010/70 Heading A6S  A toy railway assembly comprises a turntable whose track section 13A can connect with a number of sidings or with tracks leading to the upper and lower portions of an elevator 14 and a motor driven train 10 having a pinion 47 on its driven axle which can engage with gears 46, 66 and 76 so that the motor of the train drives the turntable or the elevator. A dump-truck 11 is also included whose container 29 may be tipped by upward movement of a pusher 34. The train has a reversing switch 25 which is operated by contact with a semaphore signal as the train enters one of the sidings and the train and the truck have couplings 35 and 41 such that if the truck is in the siding as the train enters they couple together and reverse out automatically. When the train runs onto the turntable the bridge 48 reverses the motor but the spring- loaded block 50 prevents the train from moving back but holds it in a position where the pinion 47 engages the gear 46 and so drives the turntable via gear 45 and teeth 44. When the turntable approaches the required position a button (53) is pressed to cause a tab to be raised so that it engages with a slot in the hub 55 of the turntable and prevents rotation of the latter so that the train rides over the gear 46 and block 50 and runs off onto the chosen track. In a similar manner when the train runs onto either the top or bottom section of the elevator the motor is reversed by a signal but a spring-loaded block 67 or (82) holds it in place while it drives the hopper 17 up or down respectively via a cable and pulley system. As the hopper reaches the top a projection 69 on its mounting strikes a rod 79 so tipping the contents of the truck into the hopper and lowering the block 67 so that the train can leave. Similarly as the hopper reaches the bottom its contents are automatically dumped into the truck and the train is released.
Patent GB-298961-A (GB)
Title: Improvements relating to centralised lubrication systems
IPC: B60R17/02
Filed: 1928-10-17
Abstract: 298,961. TÚcalÚmit, Ltd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Oct. 17, 1927, [Convention date]. Multiple-delivery piston pumps.-Oil supplied by the engine oil pump of a. motor vehicle through a pipe 3 to a filter 1 mounted on the dashboard 2 is discharged through an outlet 6 connected by a pipe 7 to the engine and by a pipe 8 and a union 9 provided with a non-return valve 10 to the cylinder 12 of a device 11 for distributing it to the chassis. A plunger 15 slidable in the body 11 has cup-leathers 20 acting as a piston in the cylinder 12. When an enlarged head 17 on the plunger is depressed by the driver's foot, oil is drawn into the cylinder 12 from the pipe 8 and enters an annular recess 26 around the plunger through passages 24, 25 and a central bore 22. When the pedal is released the plunger is returned by a spring 18, closing the valve 10, and oil is distributed from the recess 26 successively to spaced conduits 13 each fitted with a non-return valve 14. Specification 298,197, [Class 46, Filtering &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) referred also to Specification 272,963. This reference does not appear in the Specification as accepted.
Patent GB-244266-A (GB)
Title: Improved apparatus for measuring linear dimensions
IPC: G01B3/20
Filed: 1924-12-15
Abstract: 244,266. Haas, A. L. Dec. 15, 1924. Magnifying-appliances.-A magnifier of the cloth counting type is mounted on the cursor 2 of a device for measuring hardness-test indentations. A limb 4 pivoted to a vertical member 3 is fitted with a screwed socket 8 for the reception of a lens or microscope. A mirror 15 having universal movement, a mirror 9 on a cranked pin 10, are provided. The magnifier may be folded flat.
Patent GB-666877-A (GB)
Title: Growing large piezo-electric crystals
IPC: C30B7/00
Filed: 1948-11-19
Abstract: Crystals of potassium dihydrogen phosphate or of ammonium dihydrogen phosphate are grown by immersing seed crystals in a saturated aqueous solution of the salt to which solution has been added potassium borate and caustic potash in the case of potassium dihydrogen phosphate, or urea and ammonia in the case of ammonium dihydrogen phosphate.  The proportion of caustic potash or of ammonia added must be less than one molar weight per molar weight of the potassium dihydrogen phosphate or of the ammonium dihydrogen phosphate respectively.  The compositions of baths suitable for the growth of each phosphate are set out in two examples.  Specification 624,105 is referred to.
Patent GB-191538-A (GB)
Title: Improvements relating to conveyors
IPC: B65G35/00
Filed: 1922-08-11
Abstract: 191,538. Cochrane, D. G., and Kirkup, E. H. Aug. 11, 1922. Conveying from working face in mines.-In conveyers of the kind comprising a flexible belt running in a trough built up in sections and alternately wound on to and unwound from a revoluble drum or drums, each drum d and its movable carriage are disposed at substantially the same level as the belt a and overhang the co@rves g.
Patent GB-1307500-A (GB)
Title: Production of nonwoven fabric
IPC: D04H1/54
Filed: 1971-06-28
Abstract: 1307500 Bonded fibre fabric MONSANTO CO 28 June 1971 [29 June 1970] 30187/71 Heading D1R A web of continuous or staple drawn nylon 6.6 fibres, optionally containing some polyester and/or polyolefin fibres has the water content of the nylon fibres raised to 3% to 7¢% by weight by the application of steam or water, or by storing in a humid room prior to being autogenously bonded by the absorption and desorption of hydrogen chloride gas. Preferably the web is humidified at 2, passed into first gas chamber 6, in which hydrogen chloride is infected at the top and sucked through the web by a suction device at the bottom, then passed into a second chamber 26 in which gas is applied from below, then heated or immersed in water to remove the gas. Porous polyethylene baffles 10, 30 ensure uniform adsorption of the gas. Polytetrafluoroethylene rolls 4, 7, 11, 19 act as gas tight seals and together with feed rolls 43 serve to compact any loose filaments.