baber/WOPTO huggingface dataset:
Patent GB-989315-A (GB)
Title: Modulation circuit
IPC: H04N9/16
Filed: 1963-06-06
Abstract: 989,315. Amplitude modulation; television. GENERAL ELECTRIC CO. June 6, 1963 [June 25, 1962], No. 22584/63. Headings H3R and H4F. In a light valve projection system for projecting broadcast colour television images in which primary colour voltages ER, EB and EG are derived by combining a luminance component voltage EY and colour difference component voltages ER-EY, EB-EY and EG-EY and in which each primary colour voltage modulates an R.F. carrier before application to the deflection plates of the light valve, the derivation of each colour voltage, the generation of its carrier and the subsequent modulation process are carried out in a single stage which includes a beam deflection electron discharge device. The circuit, Fig. 3, comprises the discharge device which includes a cathode 62, a control grid 63 and an accelerating electrode 64 which together with coil 69 act as an R.F. oscillator circuit, a pair of beam deflection plates 67, 68 to which the colour difference voltage e.g. ER-EY and the luminance voltage EY are respectively applied and a pair of anodes 65, 66 to one of which, e.g. 66, a load circuit formed as a band pass filter centered at the oscillator frequency is connected. The current in the tube between the deflection plates includes an R.F. component and is deflected towards or away from anode 66 in dependence on the difference between the difference component voltage and the luminance voltage, i.e. on the colour voltage hence the anode current includes an R.F. component modulated by the colour voltage and develops a corresponding voltage across the load. A negatively modulated signal, i.e. one in which the modulation envelope is shifted 180 degrees in phase, may be obtained from a load circuit connected to anode 65. The R.F. signals modulated by the red and blue colour signals are applied to the horizontal deflection plates 21, 22 and a negatively modulated green signal is applied to the vertical deflection plates 23, 24.
Patent GB-918887-A (GB)
Title: Matrix
IPC: H03K17/88
Filed: 1961-06-23
Abstract: 918,887. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 23, 1961 [July 18, 1960], No. 22778/61. Class 40 (9). [Also in Group. XIX] In a matrix of bi-stable devices, e.g. magnetic cores, all the row drivers are connected to a common point and all the column drivers are connected to a common point, so that to switch a particular device all the drivers except those connected to the particular device are energized, and the drivers for the particular device act as.return paths for the total energizing current, which operates the device. Row drivers 21X-28X and column drivers 31Y- 38Y are each connected to a transformer secondary 51, 61, the primary of which is connected to an anode of a cathode-ray tube 1X- 8X and 1Y-8Y. Preferably each tube has thirty-two anodes, of which sixteen are used for writing and sixteen for reading, one pair of anodes being used for each 8 x 8 matrix plane, as in Fig. 1. The transformers include a first core having no sharp saturation level and linked by primary 41 and secondary 42, and a second core having two stable states and linked by primary 41, secondary 42, and a tertiary winding 43 connected to a resistor 44. The tubes are controlled so that the electron beam in each X-tube impinges on the same anode of each tube, and the beam in each Y-tube impinges on the same anode in each tube. For a write operation in core 13Q all tubes except 5X and 5Y are switched on with their electron beams directed on to anode tabs No. 1, so that currents NI flow from each driver except 25X and 35Y to points A, B, and currents 7NI flow back through these two drivers and switch core 13Q. In addition the switchable cores of transformers 50, 60 are switched so that the current is dissipated in resistors 50R, 60R, which are matched to he characteristic impedances of lines 25X, 35Y so that no current is reflected back along these lines. To read from core 13Q the electron beams in all the tubes are deflected to anode tabs No. 2, and all tubes except 5X, 5Y are switched on. Currents then flow in the opposite direction through the drivers, and switching of core 13Q is detected by sensing line 70. A larger array is also described (Fig. 3) in which four tubes are used for the column drivers and four tubes for the row drivers, each having four pairs, of anodes. Tables are given indicating how different cores can be switched by switching different tubes on and off while energizing particular anodes in the row and column tubes.
Patent GB-534402-A (GB)
Title: Improvements relating to packing for glands
IPC: F16J15/26
Filed: 1939-08-05
Abstract: 534,402. Stuffing-box packing. WALKER & CO., Ltd., J., DIXON, W. J., and WATSON, T. F. Aug. 5, 1939, No. 22784. [Class 122 (v)] Packing for a stuffing- box comprises a ring c of fibrous or other elastic material, the inner face of which is in contact with the shaft e and is wider than the outer face, so that the ends of the ring are inclined, and two metal reinforcing plates a, b which fit against the ends of the ring and bear on the shaft at their inner edges. The outer edges of the plates are formed with flanges a', b', and are spaced apart, so that a portion of the ring is exposed between them. The ring may be of asbestos, hemp, cotton &c. and may have a lubricant, such as graphite, oil or grease incorporated with it. Indiarubber may be incorporated with the material of the ring.
Patent GB-178042-A (GB)
Title: Improved geyser
IPC: F24H1/12
Filed: 1921-08-27
Abstract: 178,042. Vincent, W. P., Barrow, P. E., Vincent, G. T., and Wayne, P. F. W. Pictor-. Aug. 27, 1921. Geysers.-In a geyser of the type described in Specification 139,896, the conical base of the corrugated cylindrical flue 4 is arranged to fit tightly over the conical flue 3, so as to isolate the heated water from the gases of combustion. Water flows upward through hollow baffles 12 and thence through the sprayer-ring 14 and over the flue 4 and a conical flange 20. The joint of the. cylindrical flue and its base is protected by water in a lip 9.
Patent GB-773627-A (GB)
Title: Improvements in or relating to pyridyl-bromobenzyl-dialkyl diamines
IPC: C07D213/74
Filed: 1955-08-08
Abstract: The invention comprises pyridyl-bromobenzyl - dialkyl - ethylenediamines of the formula: <FORM:0773627/IV(b)/1> where R1 is an ethyl group and R2 is a methyl or ethyl group.  Such compounds are obtained by (a) reacting a 2-(b -dialkyl-amino-ethylamino)-pyridine with a hydrobromic, hydrochloric, sulphuric or sulphonic acid ester of a bromobenzyl alcohol in the presence of an alkali metal amide as condensing agent or (b) reacting 2-aminopyridine with an alkali metal amide and a bromobenzyl chloride or bromide or with bromobenzaldehyde and formic acid and reacting the 2-(N-bromobenzylamino)-pyridine with a b -diethylaminoethyl halide or a b -methylethylaminoethyl halide or (c) reacting 2-bromopyridine in the presence of pyridine or powdered copper with an N-bromobenzyl-N1.N1-diethyl -ethylene diamine or with an N-bromo-benzyl - N1 - methyl - N1 - ethyl - ethylene diamine. Examples illustrate these methods the compounds produced being N-(2-pyridyl)-N-o-, m- and p-bromobenzyl-N1.N1-diethyl-ethylene diamines, and N-(2-pyridyl)-N-o-, m- and p-bromobenzyl - N1 - methyl - N1 - ethyl - ethylene diamines.  Salts prepared were the perchlorate, maleate, hydrochloride and citrate.  N1,N - diethyl - N - (p - bromobenzyl)-ethylene diamine is prepared by boiling alcoholic b -diethylaminoethyl chloride with excess p-bromobenzylamine.
Patent GB-688415-A (GB)
Title: Alarm clock
IPC: G04B23/04
Filed: 1950-09-18
Abstract: 688,415. Clocks. JUNGHANS, H., and JUNGHANS, AKT.-GES. GEB. Sept. 18, 1950 [Sept. 17, 1949]. No. 22883/50. Class 139. An alarm clock, the alarm arrangement of which can be accurately set to a minute, is characterized in that for controlling the alarm arrangement there is provided a first control member rotating synchronously with the hour hand and, functionally connected with said member, a second control member which rotates synchronously with the minute hand, both control members having a common axis of rotation. The alarm release lever 28, Fig. 1, is controlled by two of the usual slotted cam and pin devices comprising a pin 21a rotated by the gear train 6a, 7 and 21 at one revolution per hour and an associated adjustable cam 23 having a slot 23a, and a pin 22a rotated at one revolution per, 12 hours by the gear train 6a, 7, 8 and 22 and an associated adjustable cam 24 having a slot 24a. The cam 23 is fixed to the alarm setting spindle 18 carrying a setting pointer 32 and is adjusted by rotation of a knob 19. The cam 24 is rotated from the shaft 18 through the reduction gear train 25, 29, 30 and 26 and its setting pointer 33 is rotated through an identical reduction gearing 25, 29, 30a and 34. The setting adjustment of the spindle 18 is facilitated by the co-operation of a sixty-toothed ratchet 37 with a pawl 38 which also prevents backward rotation of the spindle 18.
Patent GB-1421754-A (GB)
Title: Filtering apparatus
IPC: B01D29/15
Filed: 1972-05-17
Abstract: 1421754 Filter cartridge D B PURCHAS 29 March 1973 [17 May 1972] 23069/72 Heading B1D A demountable, inward-flow liquid filter cartridge comprises a perforate support tube enclosed by a sheet of filter paper 16 whose edges overlap but are not bonded. The outer overlapping edge may be cut obliquely to the tube axis. The ends of the sheet may be folded into recesses at the ends of the tube and secured by spring rings 17, 18, or hose clips may enclose the sheet outside the tube. Sheet 16 is replaced when dogged. Several cartridges may operate in parallel in a common housing.
Patent GB-708625-A (GB)
Title: An improved device for moulding articles of a plastic mass particularly of dough
IPC: A21C5/02
Filed: 1950-09-22
Abstract: 708,625. Moulding dough &c. SOERENSEN, C. HILDEBRANDT-: Sept. 22, 1950 [Sept. 24, 1949; March 10, 1950], No. 23269/50. Class 87 (2) A moulded article, e.g. a dough piece, is loosened and ejected from a mould cavity by air compressed by a plunger associated with the mould. In one form of apparatus, dough in a hopper 20, Fig. 1, is forced into mould cavities 5 between rotating discs 1, 2 by a roller 21. Superfluous dough is removed by a scraper 22. Each cavity 5 has an air space 6, Fig. 3, containing a piston 7 which is normally forced outwardly by a spring 13 to form the base of the mould cavity. A stop ring 14 on the piston rod 8 holds the piston in this position. As the discs 1, 2 rotate, a cam 16 raises the piston and air passes into the space 6 through a duct 18. When the cam allows the spring to return the piston to its normal position, the piston acts on the air in the space 6 to compress it and expel the moulded article. In a modification, Fig. 4, the mould cavity 5 is connected to the air space 6 by slits 23 which are too narrow to allow the passage of dough therethrough. The duct 18 may have a valve to allow air to enter the space 6 at the correct time, in which case it may be arranged in the piston or anywhere in the space 6. In another form of apparatus, Fig. 5, material is filled into a space 34 and compressed against a plunger 7 by a member 32 which is raised by applying pressure to a plate 38. After moulding, the mould assembly is rotated manually about a shaft 26, and a guide' path 50 raises the plunger 7 against a spring 42. The spindle 46 of a valve 45 is prevented from rising with the plunger 7 by a plate 53, so that air passes through ducts 56, 18 to the space 6, Fig. 6, formed by the raising of the plunger 7. On further rotation of the mould assembly, the valve spindle 46 comes off the plate 53 and it rises under the action of a spring 55 to close the valve. The path 50 then releases the plunger 7 which is moved downwardly by the spring 42 to compress the air in the space 6 and eject the article. The mould may be automatically held in its position above the moulding table. The apparatus may be provided with several moulds. The mould cavities may be formed in a removable part of the mould as shown in Fig. 4.
Patent GB-1262288-A (GB)
Title: Improvements in thyristor firing circuits
Inventor: WEAVER JOHN JAMES LAURENCE
IPC: H02M1/092
Filed: 1968-05-16
Abstract: 1,262,288. H.V.D.C. static converters. ENGLISH ELECTRIC CO. Ltd. 13 May, 1969 [16 May, 1968], No. 23304/68. Heading H2F. In an H.V.D.C. converter, groups 1 of thyristors in a series string are fired simultaneously from a common pulse generator 2 pulses from which are transmitted in the form of shock waves through solid insulating rods 4 of quartz or ceramic, to actuate firing circuits local to the thyristors. The pulses from 2 are converted to physical vibrations by piezo-electric or magneto-strictive transducers 3 and applied to the rods. Matched transducers 6 convert the rod's vibrations into electrical signals which actuate pulse generators 7 to simultaneously fire all of the thyristors through distributing and gating circuits 8. In a fractional arrangement (not illustrated) in which the thyristors are arranged in a helical stack, the signal transducers 6 may be arranged at intervals along the stack axis with rods 4 of equal length extending outwards from them to the transducers 3. Use may also be made of the structural members of the stack assembly e.g. the walls of an enveloping tank, insulating supports etc. for transmission of the physical vibrations. There may be a respective pulse generator 7, rod 4 and transducers for each thyristor. The transducers 3, 6 are matched to reduce resonance effects. The series strings of thyristors are connected to form a bridge network.
Patent GB-917978-A (GB)
Title: Improvements in bobbin clutches for textile spinning and like spindles
Inventor: WESTALL ARTHUR
IPC: B65H75/24
Filed: 1960-07-04
Abstract: 917,978. Securing bobbins on shafts. T.M.M. (RESEARCH) Ltd. May 4, 1961 [July 4, 1960], No. 23330/60. Class 80 (2). A self - tightening coupling for securing a bobbin to a spindle 11 comprises friction shoes 13 carried partly in recesses in a cam 142 freely rotatable on the spindle 11 and partly in recesses in a housing- member 12 fast with the spindle 11, which shoes 13 are moved radially out into driving engagement with the bobbin by wedging rollers 15 on relative rotation between the shoes 13 and cam 142. Specification 744,226 is referred to.
Patent GB-590616-A (GB)
Title: Improved process and apparatus for the polymerisation of olefinic hydrocarbons
IPC: C08F210/12
Filed: 1944-11-23
Abstract: <PICT:0590616/IV/1> Isomonolefines with or without diolefines or polyolefines having up to 14 carbon atoms are continuously polymerized in presence of a liquid diluent below - 70 DEG  C. in a system comprising a reaction chamber and a larger cooling chamber through which a turbulent stream of mixture is circulated, a portion being diverted to the reaction chamber in which it is agitated and a solution of Friedel-Crafts catalyst added and in which a slurry of polymer is produced.  Part of the slurry is continuously recycled to the cooling chamber and part is withdrawn from the system.  The rate of addition of catalyst and the flow of mixture through the reaction chamber are adjusted so that the smallest quantity of free catalyst is recycled to the cooling chamber and the maximum temperature rise in the reaction chamber is 10 DEG  F.  The preferred isomonolefine is isobutylene, specified polyolefines are butadiene, isoprene, piperylene, dimethyl butadiene, myrcene and dimethylallene.  Diluents specified include liquid methane, ethane and ethylene and alkyl halides.  In the drawing a baffle 17 with a central opening 19 separates the reaction chamber 18 from the lower cooling chamber. Circulation in and between the two chambers is controlled by impellers driven by motors 16 and 29.  A feed inlet is provided at 38 and manifold 30 supplies catalyst to the nozzles 31.  The slurry of polymer is withdrawn through overflow pipe 33.  In the cooling chamber an inlet 39 may be provided for supplying catalyst "poison" to minimize after-polymerization, and an additional outlet pipe 37 fitted.  In a modification, a plurality of reaction chambers are provided in a loop of pipe separate from but connected to a heat exchanger section.  Specifications 580,407, [Group III], and 590,595 are referred to.
Patent GB-1115566-A (GB)
Title: Temperature responsive actuator
IPC: H01H37/38
Filed: 1967-05-19
Abstract: 1, 115, 566. Temperature responsive actuating elements. ITT INDUSTRIES, Inc. May 19,1967 [May 24, 1966], No. 23393/67. Heading G1D. A temperature responsive actuator comprises a body 12 of thermally expansible resilient material 12 confined within a casing 14 including a plurality of axially aligned closely spaced annular elements 18 forming casing side walls and end walls 20, the casing side walls being radially rigid but axially expansible so that volumetric expansion of the body 12 results in linear axial movement of the end walls 20. The body 12 may be of silicone rubber and may be electrically conductive so that the actuator may be directly resistively heated. The spaced annular elements may be formed by a spiral spring or by separate elements and the spacing between the elements is such that no extension of the rubber takes place through the spaces. As the rubber body 12 expands the spacing between the elements 18 will increase to allow for the linear expansion of the body. Alternatively a braided cable casing may be used in place of the elements 18.
Patent GB-533580-A (GB)
Title: Improvements in covers for the front compartment in rear-engined vehicles
IPC: B62D25/12
Filed: 1939-08-14
Abstract: 533,580. Motor-vehicle bodies. ZAVODY RING- HOFFER-TATRA AKCIOVA SPOLECNOST. Aug. 14, 1939, No. 23412. Convention date, Aug. 29, 1938. [Class 103 (ii)) Relates to stream-lined vehicles with engines at the rear, and consists in a cover for the front compartment comprising two parts 2, 3 hinged together at 4, the other edge of the part 3 being hinged to the body at 5 and the other edge of the part 2 guided by links 6. On raising the part 2 the cover assumes the shape shown in dotted lines.
Patent GB-1216801-A (GB)
Title: Improvements in or relating to a method for quenching steel parts and in particular rails in a fluidized powder bed
IPC: C21D1/56
Filed: 1969-05-08
Abstract: 1,216,801. Fluidized bed quenching. UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE. May 8, 1969 [Dec.30, 1968], No.23428/69. Heading C7N. Steel parts, e.g. rails, are quenched in a fluidized bed wherein the fluidized solid is selected from Cr, Fe, Ni, or stainless steel alloys containing Cr, Cr-Ni, or Cr-A1; the Fe alloys Fe-Cr, Fe-Si, Fe-Ni, Fe-Al, or Ni-Cr and Ni-Cu, the fluidizing gas consisting mainly of steam, and the temperature of the bed being 100-500C. Pure steam may be used, or else a gas rich is steam, e.g. the product of reacting excess steam with natural gas or coke works gas or methane, which product contains small amounts of H 2  and Co 2  and possibly N 2  and Co. Steel railway lines austenitized at 900 C. may be quenched whilst held horizontal but upside-down into the bainite or martensite region, and the quenching is shown to be rapid and regular, causing a reduction in internal thermal stresses.
Patent GB-1107718-A (GB)
Title: Motion picture projector
IPC: G03B1/22
Filed: 1965-06-02
Abstract: 1,107,718. Cine projectors. EASTMAN KODAK CO. June 2, 1965 [June 2, 1964], No. 23451/65. Heading G2E. In a cine projector having an intermittant pulldown mechanism of the type disclosed in Specification 1, 054,105, in and out motion of the claw arm 22 at different frequencies is imparted by a ball follower 42 movable radially relative to face cam 37 rotating on shaft 36 to engage selected concentric rings with different numbers of camming recesses 40, the ball being captive in shift lever 51 and being accurately located in the selected cam ring by means of a captive spring-loaded detent ball 61 on lever 51 which enters concentric detent grooves 60 on the cam 37. Up and down motion of claw arm 22 is provided by followers 34 engaging eccentric cam 33 on the belt driven shaft 20 which also carries pinion 39 engaging a rim gear 38 on face cam 37. Claw arm 22 pivots about and slides vertically in a ball race 26. Forward drive, at a frequency determined by the cam ring engaged by follower 42, is provided by engagement of a dog on cam 33 with a further dog 71 on the pinion 37. Reverse drive is possible when shaft 20 is axially displaced, by a crank-arm pivoted by cam edge 88 on control knob 56, to disengage dog 71. Pinion 39 then rotates by 180‹ and a reverse drive dog on the pinion is engaged by dog 71. Still projection is possible when lever 51 is displaced to bring follower 42 to the innermost ring on cam 37 which has no recesses 40. Lever 51 is set to its different positions by rotation of knob 56 whose pin 55 engages cam slot 47 in the lever.
Patent GB-911927-A (GB)
Title: Improvements in or relating to working frames
Inventor: SCHACHT HEINRICH
IPC: A01C7/20
Filed: 1960-07-06
Abstract: 911,927. Agricultural implements. LANDMASCHINENBAU BERNBURG VEB. July 6, 1960, No. 23608/60. Class 6(1). An agricultural machine such as a seed sewer is provided with two outer frames which project on both sides of a main frame when in a working position and are adapted to be swung through half a revolution about inclined axes 6 arranged in front of or behind running wheels 9 into a transport position parallel to the working position. As shown a control shaft 25, 27 for raising the working tools is provided with a joint, the axis 26 of which, with the tools in the raised position is in alignment with the axis of rotation 6 of the outer frame but is in skewed relation with the axis 6 when the tools are in a working position (as shown) thereby preventing pivoting of the outer frame about its axis of rotation 6 except when the tools are in the raised position.
Patent GB-943740-A (GB)
Title: Improvements in or relating to low pressure electric discharge lamps
Inventor: PRIOR EDMOND
IPC: H01J61/067
Filed: 1959-07-09
Abstract: 943,740. Discharge lamps. CLAUDGEN Ltd. July 8, 1960 [July 9, 1959], No. 23626/59. Heading H1D. A low-pressure discharge lamp, particularly a fluorescent lamp, having a filling of rare gas with or without a metal vapour has at least one electrode in the form of a coiled metal filament coated with electron emissive material wherein the filament 6 is of bowed or V-shape supported at a point 8 between its ends by a support member 7 consisting of a length of fine refractory metal wire insulated from the supply conductors 10. The support wire 7 can act as a starting electrode due to the deposition thereon of emissive material from the adjacent electrode. The filament support point can be at the centre of the filament and the filament can be of V-shape of angle not greater than 90 degrees. The filament can comprise a single length of coiled tungsten wire and can extend through a loop or over a hook formed in the support wire 7. The sections of the filament lying on opposite sides of the support point 8 can be formed of separate lengths of coiled tungsten wire. The support wire 7 can be formed of molybdenum and have a diameter of less than 0.3 mm., preferably of 0.2 mm., and can extend beyond the support point 8 in the direction of the other electrode. The lamp can have a filling of mercury vapour with neon, or neon and argon at a pressure of about 5 to 6 mms. of mercury, and can include behind each electrode a mercury reservoir formed by a partition 13 extending across the envelope and provided with one or more nickel eyelet orifices 14, 15, as described in Specification 767,395, through which mercury vapour can distil.