baber/WOPTO huggingface dataset:
Patent GB-311075-A (GB)
Title: Improvements in or relating to picture telegraph, television and the like systems
IPC: H04N3/12
Filed: 1928-04-21
Abstract: 311,075. Carpmael, A., (Telefunken Ges. fiir Drahtlose Telegraphie). April 21, 1928. Television.-In a television or like receiver comprising a board of glow lamps 1 - - 5, 51 - - 55, 101 - - 105 activated synchronously with a transmitter, the elementary glow lamps are brought to illumination by received signals or by derivatives and each lamp, when once illuminated, continues to glow after the illuminating - signal has ceased and until extinguished prior to the reception of a further signal for that lamp. Each glow lamp comprises a cathode 7, an anode 6 to which bias is applied from a source 23 insufficient to cause illumination but enough to maintain illumination when started by a potential derived from the signals by an amplifier 11 and applied to an auxiliary electrode 8 through a synchronized distributor 10. The bias is applied in common to each row of lamps and is removed from the rows in succession by a synchronized rotary circuit-breaker 13. Half-tone effects are obtained by varying the frequencies of illumination for different shades by periodically altering the sensitivity of the transmitter or receiver. For example the grid bias applied to a space-charge grid 21 in the amplifying thermionic valve 11 is periodically altered by a rotary switch 16. Alternatively the photo-electric cell at the transmitter is periodically optically screened.
Patent GB-331934-A (GB)
Title: Improvements in or relating to the fitting of heels to boots or shoes
IPC: A43D8/48
Filed: 1929-04-17
Abstract: 331,934. British United Shoe Machinery Co., Ltd., and Hazelton, G. April 17, 1929. Heel seats, shaping by cutting. - Relates to machines for performing a heel seat fitting operation by cutting the sole and heel or the sole only, and consists in detail improvements in the machines of the kind described in Specifications 306,192 and 310,822, to enable either Louis or Cuban heels to be fitted. The shouldering knives are adjustable so that the angle of out to the median line of the sole may be varied, and also its angle to the plane of the sole. Alternative breast gauges are provided, for Louis or Cuban heels, respectively. The slides 1 carrying the crease plates have forward extensions 2 each slotted to guide a slide 4 operated by a forked lever 6 as described in the prior Specifications, each slide being provided with an arc-shaped guide engaging a roller on a pin 16 secured to the carrier of the shouldering knife. Each carrier slides in a guide adjustable about a vertical pivot substantially at the most forward point reached by the outer lower corner of the adjacent bevelling knife 13, the guide being clamped in adjusted position by bolts 10, 11. To enable the shouldering knife to be adjusted about its path of movement, its carrier 20 is formed with an arcuate tongue engaging a corresponding groove in an upstanding flange 19 on the slide 15, a clamping screw 23 engaging a slot in the flange. To protect the shoe from the shouldering knife, the front portion 24 of each crease plate is attached to the knife-carrying base to swing with it. An ajustable gauge 26, adapted to engage the middle portion of the lip of a Louis heel, is supplemented by a gauge 30 adapted to engage the breast margins of a Cuban heel. This gauge is pivoted at 28 to the adjusting slide of the gauge 26 so that it can be thrown forward when not required. The lateral ears of the gauge 30 are arranged, when in position, to foul the heel-cutting knives 31, to render it necessary for the operator to remove these knives, which are not used on Cuban heels, before the gauge can be positioned.
Patent GB-609310-A (GB)
Title: Improvements in or relating to dielectric heating of plastic materials
IPC: B29B13/02
Filed: 1945-05-11
Abstract: 609,310. Dielectric heating. STANDARD TELEPHONES & CABLES, Ltd. May 11, 1945, No. 11863. Convention date, June 17, 1944. [Class 39(iii)] [Also in Group V] Plastic materials are heated for injection moulding by high-frequency power applied between an inner torpedo-shaped electrode 16 and the outer body 10. The inner electrode 16 is supported on insulating webs 19. The limits of potential difference applied to the electrodes are given as 200 volts maximum and 50 volts minimum per millimeter of thickness of material between the electrodes, and the frequency limits are given as 50 megacycles maximum and 2 megacycles minimum. Specifications 586,386 and 586,387 are referred to.
Patent GB-366812-A (GB)
Title: Improvements in or relating to thread guides for centrifugal spinning apparatus
IPC: B65H57/12
Filed: 1931-04-22
Abstract: 366,812. Thread guides for centrifugal spinning-apparatus. SIEMENSSCHUCKERTWERKE AKT.-GES., S i emensstadt, Berlin. April 22, 1931, No. 11931. Convention date, May 7, 1930. [Class 120 (ii).] A plate-like part 2, preferably of spherical hoodshape, is provided on the guide tube of spinning boxes or cans to obviate the winding of the material around the tube, and, as shown, is formed with the tube which is secured in a holder 4 in the form of pincers, or is detachably secured to the tube.
Patent GB-1312599-A (GB)
Title: Floating structure for unloading liquid cargo
IPC: B63B22/02
Filed: 1972-03-15
Abstract: 1312599 Unloading liquids MITSUI SHIPBUILDING & ENG CO Ltd 15 March 1972 [19 March 1971] 12011/72 Heading B8E A floating structure, Figs. 3, 4, for unloading liquid cargo has an upright portion 8 and a horizontal portion which includes ballast tanks 11, an unloading pump 13, connection ports 25 for connection to an opening in the bottom of a ship and in connection with the pump and a discharge pipe on the pump for connection to a pipe leading ashore. In use, the ballast tanks are opened to admit sea water and the structure is manoeuvred alongside a ship, Fig. 7. The tanks are now partly emptied so that the structure is held tightly against the ship's bottom by buoyancy. Seals 20, Fig. 9, surround the hole in the ship's bottom. Water is drained from a space 21 through a pipe 22 and a man enters the space 21 through an opening 23 and connects a flexible pipe 26 between the hole in the ship's bottom and an appropriate one of ports 25.
Patent GB-493789-A (GB)
Title: Improvements in or relating to folding projection screens
IPC: G03B21/58
Filed: 1937-04-27
Abstract: 493,789. Projection screens. DENTON, J. M. April 27, 1937, No. 12048. [Class 97 (i)] The stretchers 4, extending between a roller 3 on which a projection screen 1 may be wound and a batten or roller 2 to which the screen is also secured, are pivoted to the batten &c. 2, and are detachably secured to the roller 3 ; tensioning is effected by a bolt passing through a longitudinally-arranged slot completely closed in its longitudinal direction and provided at either end of each stretcher. As shown in Fig. 1, each slot 4a is adjustably engaged by a bolt projecting from the batten 2 and carrying a wing or knurled nut 8, and the roller 3 carries bifurcated pins 6 to engage bushed holes 5 in the stretchers. The pins 6 and holes 5 may be replaced by tenons 4b, Fig. 5, and dovetail slots 3a, or by spring clips carried on the stretchers and snapping over the roller. The sides of the slots 3a may be made resilient by slitting the roller and providing a screw 17. The slots 4a may be provided at the lower ends of the stretchers, and may each have a lateral opening, or may be formed as a keyhole slot in a projecting metal plate, to permit the detachment of the roller &c., without removal of the nuts on the bolts projecting therefrom. To support the screen on a table, a single strut, having a keyhole plate engaging a screw &c. projecting rearwardly from the middle of the batten 2, may be provided.
Patent GB-955992-A (GB)
Title: Improvements in vapour generators of the water-tube type
Inventor: ROW RONALD HENRY PADDEN
IPC: F22G5/06
Filed: 1960-04-05
Abstract: 955,992. Regulating steam temperature in boilers. FOSTER WHEELER Ltd. March 30, 1961 [April 5, 1960], No. 12048/60. Heading F4A. In a water tube boiler comprising a furnace 18 whence gases flow successively through passes locating a superheater 22, steam generating tube banks 14 and an economizer 19, the final steam temperature is controlled by withdrawing cooled gases downstream of the economizer by a fan 34 and blowing them into the superheater pass through nozzles 32 so as to divert a proportion of the stream of inflowing hot gases from the superheater and cause them to flow through an unoccupied space 28 beside the superheater. The extent to which the gases are diverted, and hence the superheat temperature is preferably controlled by varying the fan speed manually or automatically in response to changes in steam temperature. Alternatively or in addition the temperature may be controlled by cutting in or out one or more of the nozzles or by varying their orientation.
Patent GB-494346-A (GB)
Title: Improvements relating to casings for mercury switches
IPC: H01H36/00
Filed: 1937-04-27
Abstract: 494,346. Magnetic switches; switch cases. CIANCHI, A. April 27, 1937, No. 12063. [Class 38 (v)] A protective casing 1, 2 enclosing a mercury or other scaled - container switch 3 and carrying a magnet 12 adapted to operate the switch 3, has a ridge portion 11 closely embracing the switch 3 and the poles of the magnet 12 embrace the ridge. The switch 3 may be of the type described in Specifications 453,229 and 485,259. The magnet 12, Fig. 7, has inserts 20 with projections 19 engaging grooves in the ridge 11 so that the magnet may be slid up and down the ridge to operate the switch. A cover 21 is slid over and screwed to the magnet to retain the inserts 20 in position. The switch 3 is resiliently mounted and rests on half rings or rings of sponge rubber 14 as well as on a block 17 of sponge rubber. In a modified form of insert 20, Fig. 8 (not shown), a number of balls resting in a groove take the place of the projection 19.
Patent GB-1186932-A (GB)
Title: Photographic Cameras
Inventor: REIMANN HUBERTUS
IPC: G03B27/72
Filed: 1967-03-15
Abstract: 1,186,932. Photographic exposure control. PENTACON DRESDEN KAMERA und KINOWERKE, VEB. March 15, 1967, No.12077/67. Heading G2A. After having manually selected a particular combination of the exposure factors film speed, diaphragm aperture, and exposure time, an incandescent lamp 4 is alight continuously, intermittently, or not at all, according to the suitability or otherwise of the combination selected. The prevailing scene light is received by a photoelectric cell 16, and a variable resistor is coupled with the diaphragm, film speed, or exposure time setting members. The output of a transistor 1 is coupled by a switch 2 to either an electromagnet 3 or the lamp 4, and its base is connected to the secondary of a transformer 6. The transformer itself is in the collector circuit of an oscillator transistor 9, whose oscillation is controlled by an RC circuit comprising a capacitor 10 and a set of resistances  11, which latter determine the exposure time. When switches 2 and 13 are in the dotted line position, and the shutter operating switch 18 is closed, the magnet 3 is energized, which holds the shutter open. Capacitor 10 begins to charge up until transistor 9 begins to oscillate, when the shutter closes again if the film has been correctly exposed. To determine if the chosen combination of exposure factor settings will give a correct exposure, the switches 2 and 13 are moved over into the full-line position, the transistor 9 now being controlled by the RC circuit of capacitor 10 and resistance 14. When oscillation commences, transistor 1 is blocked, and the lamp, previously alight, goes out. If, because of discharge of capacitor 10, the oscillations cease, the lamp again comes on. Thus, if a correct exposure factor combination has been set, this state is indicated by a continued intermittent flashing of the lamp, which may be made visible in the view-finder. If the resistance 17 has been set too high, the capacitor 10 is not discharged during the oscillation period, which is hence not interrupted, and the lamp 4 remains continuously out. On the other hand, if the voltage across capacitor 10 is too low, oscillation does not commence, and hence lamp 4 remains continuously alight. In either case, the settings are adjusted until a flashing light is obtained, when the switches 2 and 13 may then be changed over once more to alter the arrangement from an indicator system to a shutter control system.
Patent GB-118275-A (GB)
Title: Improvements in Folding Tents.
IPC: E04B1/344
Filed: 1918-07-25
Abstract: 118,275. Soc. Anon. des Filatures Corderies et Tissages d'Angers. Aug. 8, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Tents.-Pairs of roof-ribs 1, 2, Fig. 1, pivoted to a strap 8 are supported bv pairs of posts 4 hinged to their outer ends and are connected by ridge-bars 5 and side-bars 7. Folding angle struts 10, 11 with locking collars 15 are included, and detachable ground-struts 21, 22 are provided for propping the posts. Fig. 2 shows a pair of roofribs and posts folded up. The ridge-bars 5 and sidebars 7 are secured in place by bent metal tongues 16, Fig. 3, at their ends, the tongues being gripped in the hinge-joints. Figs. 17 and 18 show fastenings for the props. A plate 25 on the post bears a pin 26 and two hooks 24. A strap 23 at the end of the prop, having a hole to pass the pin is put between the hooks and then turned to engage them. A plate 32 on the post bears a pin 31 and two studs 33 while a plate 28 on the prop has a hole, and two keyhole slots 29. The feet of the posts have shoes 17 into which pickets 20, Fig. 16, are driven.
Patent GB-1475316-A (GB)
Title: Preparation of porous polytetrafluoroethylene sheets
IPC: B29C48/08
Filed: 1974-03-19
Abstract: 1475316 Porous PTFE film SUMITOMO ELECTRIC INDUSTRIES Ltd 19 March 1974 [19 March 1973 (3)] 12189/74 Heading B5B [Also in Divisions C3 and C7] A porous sheet of polytetrafluoroethylene is made by extruding and/or rolling an unsintered polytetrafluoroethylene mixture containing a liquid lubricant at below 327 C. to form a sheet, stretching the extruded and/or rolled sheet at least uniaxially at below 327 C., the stretching being carried out at a absolute speed of 1 cm./min.-20 m./min and to produce a stretching ratio of 1 : 1À1 to 1 : 10 and then heating the stretched sheet to a temperature of at least 327 C. by urging the stretched sheet against a moving endless mirror-surface belt positioned over a heating roll and a cooling roll at a position adjacent one side of the cooling roll and peeling off the sheet from the endless belt on the opposite side of the cooling roll thereby continuously sintering the sheet. In the examples a mixture of polytetrafluoroethylene powder and a petroleum fraction of boiling point 150-250 C. is mixed, extruded into a strip which is rolled in two directions at right angles to form a sheet which is treated with trichloroethylene to remove the petroleum, dried and then stretched and finally sintered. The sintering may be carried out by passing the sheet, S, overheating roll 1 and cooling roll 2 via an endless belt 3 which has a polished mirror-surface, auxiliary rolls 5 and 6 (i) urging S against belt 3 and (ii) peeling off S respectively. The porous sheet may be used as a membrane filter, electrolytic diaphragm or diaphragm for fuel cells.
Patent GB-1316508-A (GB)
Title: Photographic apparatus
IPC: G03B17/34
Filed: 1971-04-29
Abstract: 1316508 Cameras and film units therefor POLAROID CORP 29 April 1971 [4 May 1970] 12203/71 Heading G2A The invention relates to a compact camera in which an exposed film unit is carried between rollers  which rupture a container of processing liquid, the film unit being transported by a drawer which moves out into an extended position, and then moves back so as to return the film unit to a storage position, as disclosed in Specifications 1316502 and 1316503. In the present apparatus, the reciprocating movement of the drawer tensions the spring of a motor which drives the rollers and also tensions the camera shutter. The details of the camera, the reciprocating drawer, and the pack of film units are largely the same as in the above-mentioned Specifications. The spring motor 76 is mounted within the forward section 14 of the camera, and is coupled to the upper roller 72 by a gear transmission system 82, 88, 90, 92, 94, the last being integral with the shaft of roller 72. To ensure uniform speed of roller 72, and hence a uniform thickness of the processing liquid, a governor 95 is coupled with gear 92. Another gear 134 on the shaft of roller 72 engages in the teeth 128 of rack member 126 which moves with the drawer 96. The spring 78 of motor 76 is tensioned during the return movement of the drawer from its extended position Fig.5 (not shown) to its initial position Fig.4 (not shown). A one-way clutch 136 enables the drawer to move the other way, from its initial to its extended position, without unwinding the spring motor. The leading end of the rear wall of the drawer has a serrated tongue 112 which can be easily grasped, so that the drawer can be pulled forward manually, until the leading edge of the film unit is gripped between rollers 72, 74, when further movement is then effected by the motor-driven rollers. A pinion 218 engaging with the teeth 128 of the other rack member 127 on the other side of the drawer is part of a mechanism to tension the camera shutter during the extension of the drawer. Pinion 128 engages with another pinion 230 secured to a winding cam 212 having a spiral groove. This can be caused to pivot a lever 214 and so effect linear movement of a link 216 which actuates the shuttertensioning mechanism. (For Figures see next page)
Patent GB-1008269-A (GB)
Title: Improvements in or relating to derivatives of nitrofuran
IPC: C07F9/24
Filed: 1963-03-28
Abstract: The invention comprises O,O-diethyl-[2-(5-nitrofurfurylidene) - hydrazino] - thiophosphate, and a process for its preparation comprising reacting 5-nitro-2-furaldehyde with O, O-diethylhydrazidothiophosphate, preferably in the presence of an inert diluent such as benzene.  O,O-Diethylhydrazidothiophosphate is prepared by reacting diethyl-thiophosphonyl chloride with hydrazine. Compositions having anticoccidial properties comprise the compound of the invention and an edible carrier.  The compositions may be in the form of poultry feedstuffs.
Patent GB-140263-A (GB)
Title: New or improved safety locking device for motor vehicles
IPC: B60R25/00
Filed: 1919-05-15
Abstract: 140,263. Farmer, J. H. May 15, 1919. Locking while standing. - To pnevent unauthorized interference with motor-vehicles, the change-speed lever is locked in neutral position by a lock which fits into the slots in the gate, leaving room only for the lever. Fig. 6 shows a section through the lock, Fig. 2 an underneath view, and Fig. 5 a similar view with the lower plate 4 and bolts removed. The upper curved portion rests upon the top of the curved gate, and is formed with ribs which project into the slots in the gate. The lower plate 4, secured by screws to the ribs, is shaped with fingers 5, 6, 7, 8, 13 to fit into the slots of a four-speed and reverse gate, leaving room for the lever in the neutral position 15. The lock is secured in position by three bolts 19, 21, 22 which engage under the projecting parts of the gate. The bolt 19 is moved parallel to the neutral slot by the key, and simultaneously moves the bolts 21, 22 in opposite directions at right-angles to its own movement, by means of crossed diagonal slots on its underside engaging pins on the bolts which are pressed apart by springs 26. The key is inserted into the lock member 2 and moves the bolt 19 by means of a crank 16 and pin 17.
Patent GB-759305-A (GB)
Title: Improvements in or relating to doctor sweetening process
IPC: C10G19/06
Filed: 1954-04-28
Abstract: A doctor sweetening process comprises contacting a mercaptan-containing hydrocarbon oil with an aqueous caustic alkaliplumbite solution containing a water-soluble aliphatic amine, in the presence of at least enough free sulphur to convert the mercaptans to disulphides and in the presence of free oxygen, for a time sufficient to carry out the mercaptan conversion. The aliphatic amine may be an alkanolamine, preferably with 2 or 3 carbon atoms in each alkyl group, such as the ethanolamines and propanolamines; alkanol diamines containing 3 to 5 carbon atoms, such as propanol diamines and butanol diamines; alkandiolamines containing 3 to 5 carbon atoms, such as propandiolamines and pentandiolamines; alkandiamnies containing 2 or 3 carbon atoms such as ethylene diamine and trimethylene diamine.  A specific amine used is triethanolamine. The concentration of the amine in the plumbite solution is between 0.5 and 50 volume per cent.  The amount of free sulphur present is preferably between 5 and 100 per cent in excess of the theoretical amount required.  The contacting temperature is between 50 DEG  and 175 DEG F.  The hydrocarbon oils treated may be petroleum distillates boiling below 750 DEG F., such as naphtha, kerosen, diesel oil, heater oil and gas oil. Sour petroleum distillates boiling between 325 DEG  and 650 DEG F. are a preferred feed, and may be treated with 1 to 20 volume per cent, based on the distillate, of the plumbite and amine solution.  The process is preferably carried out for a sufficient time and in the presence of sufficient free sulphur, for the lead sulphide formed in the mercaptan conversion to be reconverted to plumbite, the plumbite phase being separated and recycled.  Examples of the process are described.
Patent GB-753913-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01P5/02
Filed: 1954-04-28
Abstract: 753,913. Cooling engines; arrangement of dynamos. MOTOREN-WERKE MANNHEIM AKT-GES. VORM, BENZ ABT. STAT MOTORENBAU. April 28, 1954 [April 29, 1953], No.'12317/54. Classes 7(2) and 7(4) [Also in Group XXXV] In an engine having vertical cylinders 1 arranged "in-line" and an axial-flow cooling-air fan 2 laterally displaced in relation to the longitudinal - axis of the engine, the air guiding channel 3 of the fan having an opening in the wall thereof through wich part of the main air stream flows to an oil cooler 5, the latter is disposed on the lower side of the channel 3 and adjacent the engine. As shown in Fig. 1, the channel 3 extends along one side of the engine and the air passing through the opening also flows over part of a dynamo 8 and through cooling fins 7 on a louvered cover 6 of the engine crankcase 4. In a modification, the opening extends along part of the length of the channel but is of increased width; also the oil cooler is attached to the fan support 10 which is provided with a pivot for the dyanmo.
Patent GB-1206748-A (GB)
Title: Process and apparatus for the recovery of plutonium or uranium
Inventor: BOUZOU GEORGES
IPC: C22B60/02
Filed: 1969-03-10
Abstract: 1,206,748. Extracting apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. 10 March, 1969 [22 March, 1968], No. 12407/69. Heading B1Q. [Also in Divisions C1 and G6] Plutonium or uranium is recovered from calcium fluoride slag derived from the reduction of PuF 4  or UF 4  with metallic calcium by grinding the slag, heating to above 700C in furnace 1, discharging through pipe 7 into cooled concentrated nitric acid in vessel 8, and separating the insoluble CaF 2  from the plutonium or uranium solution by means of filter base 11. In the apparatus shown, four reaction .vessels 8, 8'.. are secured to a hub 9 which .can be rotated so that the vessels are used in turn. The nitric acid solution is withdrawn via valve 17 to tank 20, and the CaF 2  residue is washed with concentrated HNO 3  from tank 23.