baber/WOPTO huggingface dataset:
Patent GB-883475-A (GB)
Title: Improvements in or relating to microwave modulators
IPC: H01P1/175
Filed: 1958-10-29
Abstract: 883,475. Amplitude modulation; frequency modulation. RAYTHEON CO. Oct. 29, 1958 [Oct. 30, 1957], No. 34669/58. Class 40(5). [Also in Group XL(b)] A microwave modulator comprises a ferrite circulator arranged to receive and produce deviation from a fixed polarization in microwave energy emanating from a microwave source, and to direct the deviated energy back to the source to frequency or amplitude modulate the energy emitted by said source in accordance with the reactive or resistive character of a load presented to the source. As shown a circulator comprising an input T section 16, a ferrite rotator 14 and an output T section 12 is connected between a microwave source 18, e.g. a magnetron or klystron oscillator, and an antenna 12 (shown to a reduced scale) or other load. The input T section 16 comprises a section of square waveguide 53 and a rectangular arm 54 provided with a matched termination 55 consisting of a section of rectangular waveguide filled with an absorbing material such as Polyiron. The rotator 14 includes a cylindrical ferrite element 36 supported in a section of circular waveguide 38 by two members 39 and 39a of low-loss dielectric material such as teflon. A coil 42 is connected through a choke 45 to a D.C. source 44 and through a capacitor 47. to an A.C. source 46. The output T section 12 comprises a section of square waveguide 26 rotated through an angle of 45 degrees with respect to the waveguide 53 and a rectangular arm 27 in which a plunger 32 can be moved by a screw 31. Microwave energy entering the waveguide 53 passes to the rotator 14, is rotated 45 degrees by the D.C. field and passes along the waveguide 26 to the antenna or load. Reflected energy is rotated a further 45 degrees and is absorbed by the termination 55. The A.C. field in the rotator 14 produces small deviations from the 45 degrees rotation so that some energy enters the arm 27 which presents a resistive or reactive load to the source 18 in dependence on the position of the plunger 32. With the plunger set at a distance of #/8 from a zero position, usually 8 occurring a short distance outside the outer wall of the waveguide 26, the load is resistive and produces amplitude modulation. Frequency modulation, at a rate depending on the frequency of the source 46, is obtained with the plunger set at a distance of #/4 to   provide a reactive load. A mixture of frequency and amplitude modulation is obtained with an intermediate setting.
Patent GB-1403391-A (GB)
Title: Process for the manufacture of worts
IPC: C12C7/00
Filed: 1972-07-25
Abstract: 1403391 Wort manufacture GRANDES MALTERIES MODERNES, GROUPEMENT D'INTERET ECONOMIQUE TEPRAL AND POLLOCK INTERNATIONAL Ltd 25 July 1972 [26 July 1971] 34824/72 Heading C6E Wort is made by subjecting barley to at least one treatment of thoroughly wetting with water followed by exposure to air (the temperature and time of the treatment being chosen to cause chitting of the barley), then rolling and grinding the chit malt and extracting with a mixture of hot water and malt, the amount of malt being 10-40% w/w on a solids basis of the dry weight of chit malt and malt, and separating the wort so produced. Wetting may be achieved by steeping for 1-12 hours at #45 C and air exposure for 5-24 hours at 10-40‹C. After exposure the barley may be resteeped for 0.5-6 hours followed by air exposure at 10-40‹C for 1-20 hours. The extraction of the chit malt may be performed in the presence of an amylase, a protease and/or a #-glucanase. The barley is preferably at least partially dehusked. Giberellic acid may be added during or after the first steeping. The chit malt may be stored at low temperature, dried with air so that the grain temperature does not exceed 45‹C, or freeze-dried, after rolling but before grinding.
Patent GB-822217-A (GB)
Title: Improvements relating to ventilators
IPC: F24F7/02
Filed: 1957-11-08
Abstract: 822,217. Ventilators. GREENWOOD'S & AIRVAC VENTILATING CO. Ltd., and HUGHES, B. D. May 28, 1958 [Nov. 8, 1957], No. 34825/57. Class 137 A ventilator incorporating a fan and motor comprises an apertured plate, on which the fan and motor are mounted, which is formed separately from but is adapted to be mounted on or secured to the remainder of the ventilator. As shown, a fan 2 and motor 1 are mounted on an apertured plate 3 by brackets 5 and rubber blocks 4, the cable supplying power to the fan passing through a bush 17 in the plate. The plate may be secured directly to a curb 7 but is preferably fixed to a part 10<SP>1</SP> of the ventilator, e.g. by a bracket 11. Grease nipples 14 may be provided to supply grease to the fan and motor without dismantling the ventilator which may have a cover 12.
Patent GB-398793-A (GB)
Title: Fuse and alarm signal for high tension electric lines
IPC: H01H85/30
Filed: 1931-12-16
Abstract: 398,793. Indicating faults. VIDAL, M., Jussey, Haute-Saone, France. Dec. 16, 1931, No. 34843. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 4, 1932]. [Class 37.] An indicator for indicating overload current in an electric transmission line comprises a plate 5 supported in a raised position by a fusible element 6 which is in contact with a resistance element 2 connected in the line circuit. When an overload occurs, the element 2 melts the element 6 and allows the plate 5 to drop, the plate being guided by a pin arranged in a slot in the plate.
Patent GB-780340-A (GB)
Title: Improvements in or relating to portable electric fires for domestic heating
IPC: F24C7/10
Filed: 1954-12-01
Abstract: 780,340. Electric fires. IRVINE, A. M Nov. 28, 1955 [Dec. 1, 1954], No. 34851/54. Classes 39(3) and 126 An electric fire comprises a substantially parabolic reflector 1 preferably spun from a super-pure aluminium and having a mirror finish, a heating element 3 disposed concentrically about the reflector being in two similar sections, one only of which need be energized when the fire is placed in a corner or near one wall of a room. The heating element is housed within translucent fire-proof glass tubing 4 and may consist of a coiled wire resistance wound on a refractory bar of rectangular cross-section, or a resistance wire covered in ceramic material and housed in a stainless metallic sheath. The heating element sections are supported at their ends by sockets 20 formed on brackets 19 which are secured by arms 18 to a vertical axis member 2. A cap portion 5 and a base plate 17 may be apertured to permit air to flow through the reflector which has a removable guard 23. A handle 11 and feet 15 are provided. The reflector may alternatively comprise a metal mirror finish deposited on a non-conducting surface, e..g. a thermo-setting plastic, and may be moulded in two or more parts secured together.
Patent GB-820476-A (GB)
Title: 5-dibenzo [b.f.] azepines and their preparation
Filed: 1957-11-12
Abstract: The invention comprises compounds of the formula <FORM:0820476/IV (a)/1> (wherein X is a hydrogen or halogen atom, or a methyl group), and the preparation thereof by acylating (e.g. with acetyl chloride, chloroformic acid methyl or ethyl ester) a 10 : 11 dihydro-5-dibenzo [b.f.] azepine (iminodibenzyl), then reacting the 5-acyl derivative with a halogenating agent (e.g. N-bromo- or N-chloro-succinimide or N-bromo-acetamide or -phthalimide) and treating the resulting 5-acyl-10-halogen-10 : 11-dihydro-5-dibenzo [b.f.] azepine with a dehydrohalogenating agent and simultaneously or subsequently hydrolysing with an alkali metal hydroxide or tertiary organic base (e.g. collidine).  In Example (1), iminodibenzyl is treated with acetyl chloride, N-bromosuccinimide, then dehydrobrominated and hydrolysed to iminostilbene.  Similarly made is 3 : 7-dichloro-iminostilbene. 2 : 8-Dichloro-, 1 : 9-dichloro-, 3 : 7-dimethyl-, 2 : 8-dimethyl-, and 1 : 9-dimethyliminodibenzyl are also suitable starting materials.  5-Acetyl-iminostilbene is made by dehydrobrominating 10 - bromo - 5 - acetyl - iminodibenzyl, which is made by reacting N-bromo-succinimide with 5-acetyl-iminodibenzyl, itself made from iminodibenzyl and acetyl chloride.  Similarly made are 5-acetyl-3 : 7-dichloro-iminostilbene and 5 - aceto - 3 : 7 - dichloro - iminodibenzyl.  5 - Carbethoxy-iminostilbene is made by dehydrobrominating 10 - bromo - 5 - carbethoxy - iminodibenzyl, which is made by reacting N-bromosuccinimide with 5-carbethoxy-iminodibenzyl, itself made from iminodibenzyl and chloroformic acid ethyl ester.
Patent GB-620524-A (GB)
Title: System of setting paper positioning parts on a printing machine
IPC: B41L19/00
Filed: 1946-11-27
Abstract: 620,524. Printing-machines. NEWTON, E. P. (Addressograph-Multigraph Corporation). Nov. 27, 1946, No. 35201. [Class 100 (ii)] A printing-machine of the kind in which impressions are taken from a master printing- sheet secured to a drum, is constructed with scale means which enable the printed impression to be placed accurately on the printed sheet, one of the scales being on the drum and the other mounted on means which can be adjusted to control the position of the first printed impression. The invention is described in connection with a planographic offset machine as described in Specification 499,800 in which a master drum 20 coacts with an offset cylinder 30 and an impression roller 40 and cylinder 30 prints on sheets fed by a drop roller 71 to grippers 39, the printed sheets passing to a receiver with adjustable sides 91. The master sheet A is held to the drum 20 by clamps 27, 28, and the clamps used may grip the sheet A in either of three positions which are indicated by lines a, b, c, on scales E, Fig. 10, which are used in the process of adjusting the machine to position the impression correctly. The sheet A, Fig. 16, is marked with scales C<SP>2</SP>, and by means of a scale E the distance of the head K of the design from the end of the sheet is measured. The cylinders 20, 30 are connected by gears 26, 36, and gear 26 is circumferentially adjustable relatively to the cylinder 20 by loosening a bolt 29 which normally clamps the gear 26 to the cylinder. The gear 26 and a flange 25 can then be moved circumferentially to the position which ensures correct printing. The position is determined by a scale D carried by the flange 25, and a scale C secured to the drum 20, Fig. 13. A scale E, Fig. 12, is set to correspond with the required distance of the printed impression from the top of the paper, and a corresponding marking, e.g. the letter P on the scale D, is set to coincide with the numerical marking on scale C<SP>2</SP>, e.g. 7, obtained by the scale E, Fig. 10, which is set to indicate the position of the head K of the design from the top of the master sheet. The gear 26 is then fixed in position by the bolt 29. The numerical markings may be on the scale C instead of on the master sheet A, and other distinguishing marks than numerals and letters may be employed. Instead of using two scales E one scale may be used marked on one side with numerals and on the other side with letters. For laterally adjusting the sheets, the feed hopper 80 and the delivery receiver 90 may be fitted with adjustable sides 81, 91 set by means of scales F, G, Fig. 1 (not shown), which may be set by the aid of scales H on a master sheet A, Fig. 16, which are marked from the centre outwards in numerals on one side and letters on the other. The sheet H is marked at J to indicate the required position of the sheet to be printed, and by means of the readings on the scale H the sides 81, 91 are set.
Patent GB-411839-A (GB)
Title: Improvements in or relating to cooking ovens
IPC: F24C15/02
Filed: 1932-12-12
Abstract: 411,839. Oven doors. MAIN, Ltd., R. & A., and WORTLEY, G. W., Gothic Works, Falkirk, Stirlingshire. Dec. 12, 1932, No. 35202. [Class 126.] In a gas cooking-oven door with a cast metal frame 10, an outer sheet metal panel 11, an inner sheet metal lining 12, and intermediate lagging, the frame 10 is provided on the oven side with a channel 14, and the lining 12 is provided with a flange 13 which projects into the channel and is sealed therein by sealing composition. The panel 11 and lining 12 are held in position by corner pieces 18 and bolts 20. The corner pieces engage projections 17 on the flange 13, which projections are accommodated in recesses in the inner wall of the channel 14.
Patent GB-972099-A (GB)
Title: Improvements in or relating to tube end seals
Inventor: BLACK ARCHIBALD
IPC: F16L55/10
Filed: 1962-09-15
Abstract: 972,099. Tube stoppers; pressure-resisting doors. BLACK AUTOMATIC CONTROLS Ltd. Sept. 11, 1963 [Sept. 15, 1962], No. 35247/62. Heading F2P. The wall of a tube 10 is bent into engagement with the radially-extending surface 18 of a plug 12 within the tube and to conform with projections on recesses, such as axially-extending serrations, on the surface to thereby prevent rotation of the plug. Sealing means, e.g. an 0-ring 16, is provided between the plug and the tube. The plug may form a stop for the reciprocable plunger of a solenoid operated valve.
Patent GB-301434-A (GB)
Title: Improvements in or relating to mechanism for feeding electrodes in automatic or semi-automatic arc welding machines
IPC: B23K9/133
Filed: 1928-11-29
Abstract: 301,434. British Thomson-Houston Co., Ltd., (Assignees of MacRae, M. L.). Nov. 29, 1927, [Convention date]. Heating by electricity. -An electrode feedmechanism for automatic or semi-automatic arc welding machines, comprises a threaded feed roll forced into engagement with the wire and rotated about an axis substantially parallel to the line of feed. The wire is' fed through a cranked shaft 8 driven by worm gear 15 from a variable speed motor. The shaft carries a casing 7 in which the spindles of the threaded rolls 1 are mounted. The spindles have universal joints' 6 and the upper ends are provided with pinions' 5 engaging a stationary rack 13 so that they are rotated on their axes as the casing rotates round the wire. The spindles are adjusted to suit the diameter of the wire by a conical nut 20 engaging conical surfaces on bearings 21. The motor is controlled by a characteristic of the arc, e.g. the voltage to maintain the arc of constant strength. If desired, rotation of the casing is dispensed with. Several sets of feed rolls with threads of different pitches may be used to vary the feed, the speed for any given set of rolls being varied by varying the speed of the motor. Variable speed gearing is thus avoided. The drive may be applied to a portable semi-automatic arc welding machine as described in Specification 184,141. In this case the motor 23, Fig. 4, and feed mechanism 22 are. partially enclosed in a casing 28 having a handle 29 and an electromagnetic base 30 for attachment to a magnetic supporting surface. The motor is connected to the feed mechanism 22 by gears 31 or direct. In a modification the rolls 34, Figs. 5 and 7, are mounted on spindles 69, 70 carried by levers 71, 72 which are pressed together by an' adjustable spring 73 and are pivoted on a member 65 rotated by worm gear and spur gear 54 through a reversing clutch 49 from a constant speed motor 32. The spindles carry pinions 63, 64 engaging a fixed pinion 68 on a stationary hollow spindle 57. The rolls and their driving gear are mounted in a casing 58 provided with a cover 62 and angularly adjustable about the casing 37. The casing 37 is angularly adjustable about a bolt 79 on the arm 78. The rotor 38 is connected to a combined clutch member and gear 40 which through gears 41 - - 44 drives another clutch member 45 in the opposite direction. Either of the clutch parts are connected to the co-operating part 49 on the shaft 48 carrying the gears 54 by solenoids 51, 52 which are responsive to a characteristic of the arc as described in Specification 232,995 so as to control the axial position of the shaft 48 and thus the direction of drive. The shaft 48 carries a hand wheel 81 to thread the wire through the welding head in starting the machine or to control it when the head is de-energized.
Patent GB-387090-A (GB)
Title: Improvements relating to draught-excluders for attachment to the bottoms of doors
IPC: E06B7/23
Filed: 1931-12-22
Abstract: 387,090. Draught-excluders for doors. GREEN, H. E., 466, Fishponds Road, Bristol. Dec. 22, 1931, No. 35397. [Class 20 (iii).] A draught-excluder for the lower edges of doors consists of a strip of rubber or like material B held by a suitably shaped edge in a dovetailed or like recess C in a wood moulding A so that the strip hangs parallel to the door and touches the floor.
Patent GB-282839-A (GB)
Title: Improvements relating to closures and gaging devices for tanks and the like
IPC: F16L55/115
Filed: 1927-12-31
Abstract: 282,839. Standard Oil Development Co., (Assignees of Heilenday, R. A.). Dec. 31, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Dipping-rods.-The filling neck 1 of a tank is provided with a collar 2 to which is screwed a cap 5 having an aperture to receive a dipping rod 11 carried by a cover 10. Projections 11 prevent the removal of the rod, the cap 5 is sealed by a member 7, and the collar 2 is either integral with the neck or secured by a rivet or screw 16.
Patent GB-1001786-A (GB)
Title: Nut device
IPC: F16B37/02
Filed: 1963-09-09
Abstract: 1,001,786. Nuts. UNITED-CARR Inc. Sept. 9, 1963 [Sept. 25, 1962], No. 35504/63. Heading F2H. [Also in Division B3] A nut formed from drawn sheet metal has a threaded barrel 2 with flats 4 formed on its outer surface by shaving (see Division B3). The portions 8 shaved from the barrel exterior are not removed but are pressed into an annular recess 9 formed in the circular base flange @ of the nut.
Patent GB-1020592-A (GB)
Title: Improvements in stripping coatings from metal surfaces
IPC: C25F1/00
Filed: 1962-09-18
Abstract: Metal surfaces are stripped of coating materials by electrolysis using as electrolyte a molten mixture of NaOH and one or more alkali metal salts viz. alkali metal carbonate, halide, sulphate, phosphate, silicate, borate, stannate, zincate, plumbate, molybdate, fluo-silicate, titanate, zirconate, fluo-titanate, fluo-zirconate, fluoborate, or mixtures thereof. Preferred mixtures are: 85 NaOH, 5 Na3PO4, 10 KCl and 85 NaOH, 5 Na3PO4, 2-5 Na2SnO3 and 10 KOH.  The molten mixture is applied at 900  DEG C. using 4-6 V. at up to 100 Amps. The current may be reversed periodically.  The process is applied to de-tinning steel sheet, removing rubber and silicate coatings, paint, and anodized, and phosphate coatings. The examples are mainly concerned with stripping tin, and lead from copper.
Patent GB-1242058-A (GB)
Title: Improved evaporation and distillation apparatus
Inventor: MCINALLY ANDREW
IPC: B01D1/26
Filed: 1967-08-03
Abstract: 1,242,058. Multiple-effect evaporators; distillation of water. A. McINALLY and J. McINALLY. 4 Nov., 1968 [3 Aug., 1967], No. 35672/67. Heading BIB. Distilled water is produced by boiling sea water in evaporators 4 and 5, each of which is provided with a boiler/condenser, the evaporators being connected so that the steam from evaporator 4 is supplied to the boiler/condenser 7 of evaporator 5, the steam from evaporator 5 is drawn into compressor 11 and the compressed steam is introduced into the boiler/condenser 6 of the evaporator 4, and steady state conditions are maintained by an immerser heater 10, in boiler/condenser 7, heater 10 being actuated by a thermostat 26 located in the vapour space of evaporator 4. The condensate formed in boiler/condensers 6 and 7, i.e. distilled water, is withdrawn by pump 18 through heat-exchangers 1 and 2 in which the sea water feed is preheated. The feed is also preheated in heat exchanger 3 by brine withdrawn from evaporator 5 by pump 24. The preheated sea water is introduced into evaporator 5 via scale trap 13. Immerser heaters 8, 9, are used when the apparatus is started-up. Each boiler/condenser is preferably provided with a bucket pump.
Patent GB-1006917-A (GB)
Title: Fireproof heat-insulating materials
Inventor: ATHERTON DAVID GEORGE
IPC: E04B1/94
Filed: 1963-09-10
Abstract: A fireproof heat-insulating composition comprises by weight 10-30 (preferably 17-23) parts of asbestos, 20-40 (preferably 30-35) parts of exfoliated vermiculite, 25-50 (preferably 35-40) parts of kieselguhr, and 5-20 (preferably 7-11) parts of sodium silicate. The ingredients may be formed into an aqueous slurry, in which the sodium silicate is dissolved, and then filtered to deposit the ingredients as a panel, the sodium silicate being in greater quantity in the slurry than is required in the final product to allow for loss in the effluent during filtration.
Patent GB-1055542-A (GB)
Title: Improvements relating to lamp-holders
Inventor: CULLENDER HENRY FRANCIS
IPC: H01R33/09
Filed: 1964-09-01
Abstract: 1,055,542. Lamp-holders. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 1, 1964, No. 35741/64. Addition to 865,868. Heading H2E. The spring contact-making members of the parent Specification are modified to form U- shaped clips with one limb 3 of each clip having an inwardly extending sharply curved nose portion 4 to co-operate with a groove on one side of the base of the inserted device, and with the other limb 5, of each clip formed with an inwardly extending portion 6, less sharply curved than said nose portion, to make contact with a contact on the base of the device. Each clip has a part extending therefrom to make electrical connection to the clip, and this part may be arranged to engage a conductor of a painted circuit board.
Patent GB-1151526-A (GB)
Title: Improvements in and relating to Sound Systems
Inventor: FRIEDEL RICHARD WHITTINGTON
IPC: G09B5/04
Filed: 1966-08-10
Abstract: 1,151,526. Tape-machine audio teaching aids. R. W. FRIEDEL. 10 Aug., 1967 [10 Aug., 1966], No. 35893/66. Heading G5R. An audio teaching aid comprises a master tape machine for reproducing programme material recorded on a master tape, a plurality of slave machines provided with individual controls producing, selectively, a playback condition in which signals recorded on a first track on a slave tape are played back to a student, a recording condition in which sounds picked up by a student's microphone are recorded on a second track on the slave tape, a fast wind condition, and a fast rewind condition, and means at a control position: (a) for producing simultaneous fast forward movement both of the master tape and of one or more slave tapes at a speed substantially higher than the slave-tape recording speed, and (b) for re-recording, on the first track of the or each slave tape, programme material then reproduced from the master tape. The higher speed is at least twice, and preferably of the order of four to ten times the normal speed. Preferably each machine (slave or master), has the mechanism of Fig. 2 of Specification 1,151,527. However, because the master machine needs only the higher speed for transfer of programme material to slave tapes, and will not be used for recording material on the master tape, the parts required for normal-speed forward movement may be omitted. The master console may have three machines working in conjunction with three groups of four slave machines. The slave machines may be mounted in a common rack, each student having only control buttons, head set, microphone and amplifier. Preferably, the rewind button causes rewind when depressed, and when released causes replay immediately.