baber/WOPTO huggingface dataset:
Patent GB-472213-A (GB)
Title: Improvements in and relating to electric welding apparatus
IPC: C07C309/89
Filed: 1936-12-24
Abstract: 472,213. Electric welding. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 24, 1936, No. 35374. Convention date, Dec. 28, 1935. [Class 83 (iv)] In an apparatus for electric spot welding curved seams 6, the welding machine or tongs 1 is moved by its own contained driving mechanism at controlled intervals of time and predetermined intervals of distance along a guide 5 corresponding in curvature to the seam so that welds are effected at equal intervals of time and distance. The welding apparatus 1 is mounted on a slide 2 having rollers 4 spring-pressed against the guide plate 5 mounted on supports. The slide carries a compressed-air cylinder 3, provided with valves 13, 14 and piston 15. The slide has at one end an electromagnet 9 or electromagnetically operated pawl acting as a stop and a similar electromagnet 12 is connected to the piston rod by a jointed rod 11<1>. These stops engage the surface of the guide which is transversely grooved or roughened, the magnets being pot magnets the cores of which consist of a number of separate vertically movable magnets. In order to move the slide to the right, the electromagnet 12 is energized when the valve 13 is opened, and the electromagnet 9 when the valve 14 is opened. For traverse in the opposite direction, the valve 13 cooperates with the electromagnet 9 and the valve 14 with electromagnet 12. In the former case, when fluid is supplied through valve 14 the slide is fixed by the stop 9 and the piston is moved to the right taking with it the stop 12. The valve 13 is then opened to traverse the slide on the piston 15, which is held by the stop 12. Welding is effected between these two motions. The stroke of the piston may be varied by an adjustable stop 18, Fig. 6, engaging a disc 16 on the piston rod. The cylinder space may be varied by a dummy piston 20 connected by a rod 19 to the stop 18. In a modification, the dummy piston may engage the stop 18 directly. Compressed air passes into the cylinder through the piston 20 by a tube 21. In a completely automatic device the welding electrode control is connected to the valve control and a maximum-current relay or other current-time limiting device is provided to determine the time of the weld. Both electrodes are movable so as to bring them out of contact with the work during the traverse of the slide, the lower electrode being spring- controlled.
Patent GB-1368642-A (GB)
Title: Oriented filamentary composite articles and methods of making them
IPC: B29C70/42
Filed: 1971-07-28
Abstract: 1368642 Filamentary structures GENERAL ELECTRIC CO 28 July 1971 [29 July 1970] 35393/71 Headings D1K and D1T An oriented filamentary composite article is made by applying a binder, e.g. of polymer resin, to an assembly of filamentary material, e.g. carbon or graphite fibre 13; a flexible porous mould 10 is applied to the composite mass and compressed radially by the application of tensile force to the mould; excess resin is removed, and the binder is cured. The mould may be a woven, knitted or braided sleeve of glass or carbon fibre or of metal wire, or may be a strip of fabric wound around the mass. The binder may be an epoxy resin. By applying lateral pressure to the mass during curing an article of desired crosssection, e.g. flat, may be produced. Reference has been directed by the comptroller to Specification 1305198.
Patent GB-1398636-A (GB)
Title: Colour television system
IPC: H04N11/18
Filed: 1972-07-28
Abstract: 1398636 Colour television PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 July 1972 [31 July 1971] 35394/72 Heading H4F In a line-sequential colour television system a luminance signal is transmitted on alternate lines, the signal transmitted in the intervening lines being the sum of the low-frequency part of the luminance signal and a chrominance signal formed by modulating in angle and amplitude a subcarrier, the lowest frequency of the chrominance signal being higher than the highest frequency of the low-frequency part of the luminance signal. As shown in Fig. 1, a camera 1 provides luminance, chrominance, and switching signals to the inputs 3, 5 and 7 of a change-over device 9 which includes a switch 15 operated at half-line frequency, a low-pass filter 23 and a combination circuit 19. The resulting output at 21 is fed to an input 24 of the receiver which includes a half-line frequency switch 33, one-line delay line 45, high-pass filter 43 and low-pass filter 49. During the lines when the luminance signal is being received, display apparatus 27 receives a luminance signal from input 24 via switch contact 37 and output 47, and a chrominance signal from delay line 45 via switch contact 35 and output 41. During the intervening lines, the chrominance output 41 receives a signal from high-pass filter 43 and the luminance output 47 receives the low-frequency luminance signal via low-pass filter 49, and may also receive a delayed high-frequency luminance signal from delay line 45 via additional switch contact 39 and a combination circuit. In an alternative embodiment (Fig. 2, not shown) low-pass filter 23 and combination circuit 19 in the transmitter are placed in the circuit before the switch 13, which has one movable contact, and in the receiver low-pass filter 49 is connected between the switch 33 and the combination circuit connected to the luminance output 47. An additional signal may be passed from the receiver to the transmitter to indicate whether the receiver is a colour receiver or a monochrome receiver, the transmitter producing a monochrome transmission in response to such a signal from a monochrome receiver.
Patent GB-422978-A (GB)
Title: Improvements in pistons
IPC: F16J9/22
Filed: 1933-12-16
Abstract: A light metal piston having an insert of hard metal of similar coefficient of expansion, may be made of an aluminium-silicon alloy containing 12-14 per cent of silicon.  The insert may be made of cast iron containing 18-20 per cent of nickel; or 16 per cent of nickel and 2-3 per cent of copper; or about 5 per cent of manganese and up to 11,5 per cent of nickel, with or without up to 4,5 per cent of aluminium or copper or both.
Patent GB-1377235-A (GB)
Title: Process for producing 3-perfluoroalkyl-1-propenes
IPC: C07C17/087
Filed: 1972-07-28
Abstract: 1377235 Process for 3-perfluoroalkyl-1-propenes CIBA-GEIGY AG 28 July 1972 [1 Sept 1971] 35477/72 Heading C2C 3-Perfluoroalkyl-1-propenes of the general formula R f CH 2 CH = CH 2 , wherein R f  is C n F 2n+1 , in which n is an integer 3-14, are prepared by treating a compound R f CH 2 CH(I)CH 2 OR, where R is C 1-4  alkyl or aryl, with zinc. The reaction is preferably performed in a hydroxylic solvent such as an alcohol or glycol and in the presence of a proton donor such as an inorganic or organic acid, e.g. HCl or formic acid. Amongst the examples C 1 F 15 CH 2 CH = CH 2  is obtained from the corresponding 2-iodo-1-ethyl ether or 2-iodo- 1-phenyl ether. 1,1,2,3,3 - Pentahydro - 2 - iodo - perfluoro - 1- decyl phenyl ether (C 6 H 5 OCH 2 CHICH 2 C 7 F 15 ) is prepared by reacting alkyl phenyl ether with 1-iodoperfluoroheptane. 2-Iodo-1,1,2,3,3-pentahydro - perfluoro - 1 - decyl ether is similarly obtained from allyl propyl ether and 1-iodoperfluoroheptane.
Patent GB-823369-A (GB)
Title: Improvements in or relating to the surface treatment of metals
Inventor: DRYSDALE ROYSTON FRASER
IPC: C23C22/23
Filed: 1954-12-07
Abstract: An orthophosphate coating is formed on a surface composed of iron, zinc, cadmium or an alloy thereof by treating the surface with an aqueous solution containing orthophosphate ions, zinc ions, an oxidizing accelerator and a molecularly dehydrated orthophosphate, said dehydrated orthophosphate being maintained in the solution in a minor amount (calculated as PO4) relative to the orthophosphate content (calculated as PO4). Examples of suitable dehydrated orthophosphates are metaphosphoric acid, metaphosphates, polymetaphosphates, pyrophosphoric acid, pyrophosphates and polypyrophosphates.  Specific salts which may be used are sodium hexametaphosphate, zinc metaphosphate, ammonium metaphosphate, zinc pyrophosphate and calcium pyrophosphate.  Oxidizing accelerators mentioned are nitrates, chlorates and nitroguamide.  Fluoride ions may also be present in the solution.  Specification 768,443 is referred to.
Patent GB-920403-A (GB)
Title: Large capacity earthmoving bowl-type scraper
IPC: E02F3/64
Filed: 1961-10-02
Abstract: 920,403. Bowl-type scrapers. CATERPILLAR TRACTOR CO. Oct. 2, 1961 [Oct. 28, 1960], No. 35492/61. Class 68 (1). To allow of a more satisfactory filling of the bowl 10 of an earth-moving, bowl-type scraper such as described in the referred to Specification 629,515, there is associated with the apron 18 of the bowl manually operable latch means 52-56 that lock the apron 18 relative to the bowl 10 after the apron has been partially raised by hauling in of a control cable 42 so that on further hauling in of the cable the ejector plate 19 can be moved up to adjacent the front of the bowl during the initial filling thereof.
Patent GB-915478-A (GB)
Title: Improvements relating to electromagnetic tone sounders for giving audible calling signals
Inventor: LANE PETER JOHN
IPC: H04M19/04
Filed: 1960-10-17
Abstract: 915,478. Diaphragm vibrators; resonators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 20, 1961 [Oct. 17, 1960], No. 35503/60. Class 13. An electromagnetic tone producer, intended particularly for use as a calling device in a telephone set, comprises an electro-acoustic transducer 2 having a diaphragm 7 which, being vibratable in response to the application of tone current to an electromagnet 11 of the transducer, is acoustically coupled to the external air through a tuned acoustic resonator 3 acoustically open at one end towards the diaphragm 7 and tuned to resonate in response to vibration thereof, the resonator 3 being tuned in the manner of a Helmholtz resonator by a transversely-extending apertured part 13 provided at its other end and having at least one aperture 14 through which that other end of the resonator is acoustically open towards the external air. As shown, the transducer is of the balanced-armature ring-magnet type. There may be two resonators, one on each side of the diaphragm.
Patent GB-628000-A (GB)
Title: Improvements in or relating to injection moulding machines
IPC: B29C45/72
Filed: 1946-11-30
Abstract: 628,000. Injection-moulding machines. VLTAVSKY, V. Nov. 30, 1946, No. 35536. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 30, 1946.]. [Class 87 (ii)] An electrically-heated melting chamber 1 has a pressure cavity comprising a cylindrical portion 3 merging into a tapering part 5 in the form of a truncated cone, the cylindrical part being adapted to receive a ram 4 and the wall of the tapering part having a series of holes 6 disposed along the generatrices of a cylinder or, as shown, of a cone of smaller apex angle b than the apex angle a of the tapering part. Small slots 7 extend from the inner surface 15 of the part 5 to the holes 6. The chamber 1 is of a strong metal, e.g. steel, and is surrounded by a metal ring 9 of good thermal conductivity, e.g. aluminium, which is cast thereon or otherwise fastened thereto. The ring 9 is heated by rod-shaped electrical heating elements accommodated in recesses 10, or by a heating strip 11. The ram 4 may have a conical attachment 12.
Patent GB-1224348-A (GB)
Title: Arrangement for reproducing prescribed loadings, particularly in the case of testing machines or testing apparatus
Inventor: KREITSKORTE HEINZ
IPC: G05B19/14
Filed: 1968-07-25
Abstract: 1,224,348. Programmed control of testing. CARL SCHENCK MASCHINENFABRIK G.m.b.H. July 25, 1968, No.35536/68. Heading G3N. An arrangement for testing a specimen in accordance with a predetermined test programme comprises a loading device, a load measuring transducer and a means for adjusting the loading device in dependence on a comparison between an actual load value derived from the transducer and a desired value derived from a programme circuit receiving predetermined test instructions comprising an ultimate desired load and the rate of change of load to achieve that load. As shown a test member 1 is clamped between a plunger 6 of a cylinder 5 and a holder 2 incorporating a load detector 3 connected to amplifiers 8, 25. The output of amplifier 8; which is proportional to the force applied to the member, is fed to an input of a differential amplifier 10 the other input of which is fed with a compensated desired value on a line 20. The output of the differential amplifier controls a servovalve 7 controlling the flow to the cylinder 5. A punched tape, containing digital values, representative of desired peak values of force and the rate at which this force is attained, is read by a scanning device 12 and the desired peak value fed to a potentiometer 14 the output of which is applied to an input of a differential amplifier 16 where it is compared with the actual value of the load from the amplifier 25 or, by operation of a switch 22, with the compensated input to the differential amplifier 10. The output potential of amplifier 16 is fed to a Schmitt trigger 17 the output from which is fed through a potentiometer 18 to an integrating device 19 providing the compensated desired value. The time constant of the integration of the compensated desired value is controlled by an adjusting device 29, responsive to data read from the tape, and sets the potentiometer 18, of the integrator 19, or the Schmitt trigger 17. It is stated that the switch 22 can be connected to the output of amplifier 8; amplifier 25 being no longer needed. In an alternative embodiment, Fig.2 (not shown) facilities are provided for a sinusiodal loading pattern the frequency and peak values of which are maintained constant for a specified number of load alternations.
Patent GB-748930-A (GB)
Title: Electromechanical oscillator devices
Inventor: MEYER JOHN FRANCIS ANTHONY
IPC: G01M7/04
Filed: 1952-08-07
Abstract: 748,930. Oscillating machines; converting. KELVIN & HUGHES, Ltd. Aug. 4, 1953 [Aug. 7, 1952], No. 35551/54. Divided out of 748,869. Classes 35 and 38 (2). [Also in Groups XIX, XL (b) and XL (c)] The mechanical oscillatory system of an electromechanical oscillator device of the kind in which the system is caused to oscillate by an electromagnetic device and which system in turn controls the frequency or periodicity of an electric current, comprises a permanent magnet 70 mounted on a plurality of parallel rods 73 ... 75 for oscillation about an axis parallel with those of the rods, the rods being fixed at opposite ends to plates 71, 72 urged apart by a spring 78 and relatively adjustable lengthwise of the rods by a nut 77 and screwed rod 76 to vary the oscillation frequency. The system has input and output coils 25 ... 28 connected in a circuit similar to that of the original Specification 748,869, and the whole device provides that the nut 77 is adjusted until, as described in said original Specification, a motor is caused to rotate at a speed which corresponds to that of an engine whose speed is to be indicated, which indication may be given by scale marks on the nut.
Patent GB-916389-A (GB)
Title: Anti-spill device for use in the loading of waggons
IPC: B65G67/00
Filed: 1959-10-20
Abstract: 916,389. Loading trains of wagons in movement. STAMICARBON N.V. Oct. 20, 1959 [Oct. 20, 1958], No. 35557/59. Class 78 (4). An anti-spill device for use during the loading of a moving train of connected wagons 1, 2, 3 from a hopper outlet 5, is of the kind in which members 8, 9, carried by endless chains 11, are moved by the wagons and bridge the gaps therebetween, and is characterized in that each member is shaped so that, when operative, it overhangs the bridged wagon walls with its trailing part sloping downwardly into the interior of the trailing wagon, and, when it rises away from the wagons at the position of member 9, the superincumbent mass of material thereon is displaced partly into the leading wagon and partly into the trailing wagon. The rear parts 13 of the members are hinged to the arched portions thereof to facilitate disengagement from the wagons.
Patent GB-1083123-A (GB)
Title: Process for preparing cellulose-containing fibrous materials
IPC: D06P5/22
Filed: 1964-08-31
Abstract: Paper or cardboard of increased wet tensile strength is made by adding to cellulose pulp in aqueous suspension a condensation product that is soluble or of itself emulsifiable in water and is obtained from urea and a 1, 2-alkylenimine having a substitutable hydrogen atom at the nitrogen atom and/or an oligomer thereof.  A condensation product of urea and formaldehyde or a triazine and formaldehyde or both may also be used.  Fillers, e.g. kaolin, titanium dioxide or barium sulphate, may also be used, when the condensation product improves the retention of the filler.
Patent GB-1366507-A (GB)
Title: Frameless window or door
IPC: E05D15/52
Filed: 1971-07-29
Abstract: 1366507 Pivoted windows; hinges F WAFFENSCHMIDT [trading as GEMOTEC INHABER FRANZ WAFFENSCHMIDT] 29 July 1971 [29 July 1970] 35728/71 Headings E1J and E2F A frameless glass window or door has a fitting comprising relatively movable parts, one part 5f. being connected to the glass through resilient means 5g, the other part 5h being spaced from both glass and means. The resilient means comprises a spring 5g and the parts comprise an angle piece with a slot for a bolt 5h. Alternatively means of resilient material are used and the parts may be relatively slidable.
Patent GB-1397773-A (GB)
Title: Electric cable jointing
IPC: H02G15/08
Filed: 1972-08-01
Abstract: 1397773 Electric cable jointing BRITISH INSULATED CALLENDERS CABLES Ltd 1 Aug 1973 [1 Aug 1972] 35924/72 Heading H2C As a preparation for jointing, the outer tubular conductor of an electrical power distribution cable is opened by first making opposing helical cuts 1, 2 of, say, about 1¢ turns and 60 degrees pitch relative to the cable axis joined by longitudinal cuts 3, 4 all the cuts being just less than the sheath thickness. The resulting cut around strip 5 is torn out and the edge 8 raised. Helical strips connected by the strip 10 are unwound by tearing back along cuts 1, 2 thus giving access to the core. Connections can be made to the sheath near the corners of the strip 10. Cuts 3, 4 may alternatively be helical with a small pitch angle and the main helical cuts 1, 2 may have pitch angles less than 60 degrees. At a pitch angle of 60 degrees the conductance of the unwound strip is 50% of the uncut sheath.
Patent GB-1009708-A (GB)
Title: Improvements in and relating to transistor switching circuits
IPC: H03K19/084
Filed: 1962-09-21
Abstract: 1,009,708. Transistor switching circuits. PHILCO CORPORATION. Sept. 21, 1962 [Sept. 21, 1961], No. 35995/62. Heading H3T. The input coupling to the base of a switching transistor 10 includes a biasing arrangement comprising: a resistor 22; a parallel arrangement of a capacitor 24 with a series connected resistor 26 and an asymmetrical element 28; and a resistor 18; connected between sources -V CC  and +V BB . The element 28 is effectively a constant voltage device and provides the necessary voltage drop between the transistor 10 and an input transistor 34 with a lower value of current than would be required using only resistive elements. With this arrangement, larger value resistors 22, 18 may be used so that more current flows through the base of transistor 10, giving an increase in the possible " fan-out " number. The circuit may be used in " fan-in " and " fan-out " arrangements as indicated by diode 29, 30, 31 and 40, 42, 44, 46, 48, 29. Transistor 10 may be connected as an emitter follower, Fig. 4 (not shown).
Patent GB-949377-A (GB)
Title: Improvements in methods of manufacturing closed loop winding members for electro-mechanical energy converters
IPC: H02K3/26
Filed: 1960-03-18
Abstract: 949,377. Dynamo-electric machines. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. March 18, 1960 [March 18, 1959; May 13, 1959], No. 36075/63. Divided out of 949,376. Heading H2A. The Specification describes and claims the method of making the closed loop winding member disclosed in Specification 949,376.
Patent GB-390116-A (GB)
Title: Device for removing the gasification residues from gas producers
IPC: C10J3/34
Filed: 1932-12-21
Abstract: 390,116. Grates; ashpits. METALLGES. AKT.-GES., 45, Bockenheimer Anlage, Frankfort-on- Main, Germany. Dec. 21, 1932, No. 36171. Convention date, March 10. [Class 51 (i).] In a gas-producer of the kind in which the column of fuel is supported by a table 4, the ashes are passed to a discharge means through an opening provided in the middle of the table, to which opening the ashes are conducted by a rotatable hood or grate member 9 disposed above the table and provided with scrapers 10. The rotating parts also carry scrapers 13 for conducting the ashes into the discharge duct 11 which in the case of producers working under high pressure leads to a discharge lock 12, Fig. 3. Where the pressure is sufficiently low as to enable a water seal to be used, the ashes are crushed by means of nose pieces 20, 21 on the rotating parts and on the edge of the opening in the table respectively, Fig. 2, and pass by way of duct 11 into the seal from which they are removed by a worm 22. The grate member 9 may be provided with slots 18 for the passage of air supplied through a conduit 14 and is rotated by means of a shaft 7 to which it may be directly attached as in Fig. 2 or geared as in Fig. 3.
Patent GB-1154014-A (GB)
Title: Process for Electrostatically Coating Objects with Paint and means for carrying the process into effect
Inventor: GEBHARDT OTTO
IPC: B05B7/08
Filed: 1966-08-12
Abstract: 1,154,014. Spray-producers. E. MUELLER [trading as MESSRS. ERNST MUELLER]. 12 Aug., 1966, No. 36316/66. Heading B2F. A spray-producer, in which paint is first atomized mechanically and is then transported to an article to be coated by a low intensity electrostatic field and by compressed air at a low pressure, comprises a rotatable disc 11 secured to the shaft 12 of an air motor 13, a nozzle 24 adapted to supply the paint to the disc 11 whereby it is flung radially outwardly from an edge 15, a fixed disc 18 mounted coaxially with respect to the disc 11 and provided with a sharp edge 19, a compressed air chamber 20 so cooperating at its periphery 21 with the edge 19 to form an annular air discharge outlet, and a cable 25 arranged to supply a high voltage to the discs so that a field is set up between the peripheral edges 14, 19 of the discs and the article. The disc 11 may be rotated at between 4000-20,000 r.p.m. The edge 15 is stated to be free from charge because of the 'Faraday cage' effect and atomizes the paint mechanically. A baffle plate 17 collects surplus paint and returns it to the disc 11.
Patent GB-1080579-A (GB)
Title: Heat exchanger tube
IPC: B21C37/22
Filed: 1965-08-24
Abstract: 1,080,579. Heat exchanger tubes. WIELAND - WERKE A.G. Aug. 24, 1965 [Sept. 5, 1964], No. 36411/65. Heading F4S. A heat exchanger tube 2 is fitted with a fin 1 in the form of a strip having a cambered transverse cross-section, the strip being pre-stressed so that it grips the tube when the latter is threaded through a series of openings in the fin, as shown, each opening consisting of two apertures connected by incisions 5 to form flanges 6. The fin is fitted by pressing flange 6 upwards and the opposing portion 7 of the fin downwards, placing the tube 2 under the flange 6 and then pressing portion 7 upwards to locate the tube. The camber of the fin is said to ensure good thermal contact with the tube along the whole of the length of the fin.