baber/WOPTO huggingface dataset:
Patent GB-300758-A (GB)
Title: Improvements relating to the drying of hops, grain and other like agricultural products
IPC: F26B23/02
Filed: 1927-10-15
Abstract: 300,758. Davies, T. E. Oct. 15, 1927. Bleaching grain.-Grain, hops, &c. are dried and slightly bleached by the gas obtained by burning water gas or semi-water gas in air. Coke or coal is added by a hopper b to a furnace with stepped bars c and holes d for water supply. Slides j, k. l limit the supply of coal, air, and water gas. The gas is burnt at h in air, which may be preheated, from a passage f so that the burnt gas rises through the material, supported in a perforated rack, and escapes.
Patent GB-1335311-A (GB)
Title: Variable aperture photoexposure device
IPC: G03B9/08
Filed: 1971-06-11
Abstract: 1335311 Photographic apparatus GERBER SCIENTIFIC INSTRUMENT CO 11 June 1971 [15 Sept 1970] 27508/71 Headings G2A and G3N A photo-exposure device 18 comprises an aperture mechanism for directing a rectangular spot of light on to a photo-sensitive surface 16, means for effecting relative movement between the surface 16 and the light spot, and means for varying the size of the light spot in accordance with the speed of relative movement. As shown, the device 18 is movable preferably stepwise, in two perpendicular directions X, Y over the surface 16, and the aperture size is variable in two directions U, V parallel to the directions X, Y, by altering the positions of movable blades 52, 50 respectively. The device 18 includes a light source (30) Fig. 2, (not shown), condensers (34) and shutter (44). A controller 11 drives the device 18 and also controls the line width (42) exposed by the light spot (40). To vary the size of the spot (40) in the direction parallel to its direction of movement (movement taking place along the X axis or along the Y axis but not along both simultaneously) tachometers (104, 106) are provided which produce output signals directly related to the speed of the light spot in the X, Y directions respectively. These signals are summed, and a switch (98) transmits the signal to whichever blade motor 74, 80 has not received line width control signals. Thus for spot movement, its size increases during an acceleration and decreases during a deceleration. In another embodiment Figs. 5-10, (not shown) a C.R.T. (128) and two movable blades (130), are used to provide the spot and control the size thereof in one direction. Fixed masks (136) define a rectangular aperture (132) with the blades (130). During acceleration and deceleration, the scan (144) of the C.R.T. beam illuminates a small portion of the aperture (132), increase to and decrease from the fully illuminated position being gradual. A Dove prism may be provided to rotate the projected light spot so as to draw lines in other directions.
Patent GB-231545-A (GB)
Title: Improvements in mixing or kneading machinery
IPC: A21C1/02
Filed: 1923-11-02
Abstract: 231,545. Vicars, T., and Vicars, E. L. Nov. 2, 1923. Containers.-In mixing or kneading machines in which the pan is wheeled to the machine, the pan is clamped in operative position by means of plates 49 having tapered slots engaged by pins 42 mounted on connected levers 43, 44, which are operated through a link 45 and worm gear from a hand wheel. The plates 49 are adjustably mounted on brackets 50.
Patent GB-211181-A (GB)
Title: A process for consolidating the texture of layers formed by the spraying of fluid or heated metal
IPC: C23C4/18
Filed: 1922-10-11
Abstract: 211,181. Meurer, N. Oct. 11, 1922. Coating.-In a process for consolidating the texture of metallic coatings formed by the spraying of fluid or heated metal, insoluble filling- materials are formed in the pores of the sprayed metallic coating by chemical action between liquid or semi-liquid substances introduced into the pores, these substances being such as not to have any chemical action on the metal of the sprayed coating. As an example, barium sulphate may be formed in the pores by the successive introduction thereinto of barium choride and sodium or other sulphate. The introduction of these substances may be effected by brushing, spraying, rubbing, forcing-in, or by immersion of the coating in the substance. The formation of the metallic coating and the filling of the pores may be repeated several times. The sprayed and filled coating may serve as an intermediate coating on which may be sprayed a coating of a metal which does not adhere readily to the metal base to be coated. In a modification of the process, the pores are lined or filled with metal deposited from a solution in which the coating is immersed, an additional contact metal being used when necessary. Specification 196,693 is referred to.
Patent GB-674770-A (GB)
Title: Improvements in or relating to air shutters and ventilating fan units comprising the same
IPC: F24F13/14
Filed: 1949-10-27
Abstract: 674,770. Screw fans. VENT-AXIA, Ltd., and WYLIE, T.' Oct. 27,1950 [Oct. 27, 1949], No. 27607/49. Class 110(i) [Also in Group X] A ventilating fan unit has a valve for excluding back draught through its air-flow passage 22, which valve comprises a closure member 10 accepted to close the air flow passage and supported by a flexible strip 14, for example of phospher bronze or steel, secured at one end to the closure member and at the other to the casing of the air flow passage, the arrangement being such that the valve is opened by the forward flow of air when the fan is in operation and is closed again when the fan is shut off. The closure member 10 may consist of a metal rim 7 a fabric cover, or be made of metal or plastic and may have a series of rubber studs 19 arranged round its perimeter to prevent audible vibration. A set screw 26 is provided to adjust the setting of the flexible strip 14. In a modification a number of flexible strips may be used to support the closure member or an arrangement comprising a number of pivotally connected rigid members and a spring may replace the flexible strip. Specification 442,469 is referred to.
Patent GB-738129-A (GB)
Title: A protective arrangement particularly for coal face lighting systems
IPC: H02H7/00
Filed: 1953-10-08
Abstract: 738,129. Protective cut-out arrangements. ETABLISSEMENTS MERLIN & GERIN SOC. ANON. Oct. 8, 1953 [Nov. 5, 1952], No. 27650/53. Class 38 (5). In a three-phase coal-face lighting system having a pilot circuit 29, 12 including a rectifier 26, a transformer 21 with a star-connected primary winding and an open-delta-connected secondary winding is provided to energize a relay 23 through a bridge-connected rectifier 22 in the event of the open-circuiting of a phaae conductor. The relay 23 at contacts 24 short-circuits the rectifier 26 so that alternating current, instead of pulsating direct current, flows in the pilot circuit and a relay 16 shunted by a condenser 28 is no longer sufficiently energized so that its contacts 17 open to de-energize the coil 6 of a contactor 5. A similar action takes place in the event of a short-circuit between the pilot wire 29 and earth conductor 12. Opencircuiting of the pilot circuit in the event of a fault or on the depression of one of the signalling push-buttons 20a on a lighting fitting 20, de-energizes the relay 16. In the event of an earth-fault on a phase conductor, current flows (as indicated by single-headed arrows) through earth and the neutral connection of the lighting supply transformer 4 and energizes a relay 13 through a bridge-connected rectifier 11. The relay 13 opens its contacts 14 to de-energize the contactor coil 6 and to extinguish an indicating lamp 18. A fault between a phase conductor and the pilot wire 29 causes current to flow (as indicated by the double-headed arrows) through the wire 29, the secondary winding of the transformer 15 supplying the pilot circuit, the rectifier 11 and the neutral connection, the relay 13 being energized as before. Under overload conditions, the circuit of the coil 6 is opened by the contacts 8 of a thermo-magnetic. relay 7.
Patent GB-1159673-A (GB)
Title: Improvements in and relating to Flooring Boards or Panels.
Inventor: FINDLAY GEORGE KENDRICK
IPC: E04F15/04
Filed: 1965-06-30
Abstract: 1,159,673. Forms of wood. G. K. FINDLAY. 17 Aug., 1966 [30 June, 1965], No. 27690/65. Heading B5L. [Also in Division E1] A thin flooring board or panel of wood or other material is provided on its underside with stress-relieving grooves in the form of rows of large circles 5 each of which is intersected by four small circles 6.
Patent GB-812195-A (GB)
Title: Improvements relating to electro magnetic pumps
Inventor: BLAKE LESLIE REGINALD
IPC: H02K44/04
Filed: 1956-09-11
Abstract: 812,195. Electromagnetic interaction pumps. BRITISH THOMSON-HOUSTON CO. Ltd. Aug. 26, 1957 [Sept. 11, 1956], No. 27766/56. Class 35. In an A.C. interaction pump, the current which is passed through the liquid in the duct is also used to generate the working magnetic flux. The current enters at four conducting strips 3a-3d which are bifurcated to pass above and below the duct 1 and then join at electrode parts 8a-8d which feed current into one side of the duct. The current leaves the other side of the duct at electrodes 7a-7d which are joined to conductors 5a-5d and 5<SP>1</SP>a-d passing across the top and bottom of the duct in slots in the laminated poles of the magnetic circuit (not shown). The current in these pole-face conductors prevents distortion of the vertical working flux by the working current in the duct. Current is returned from these conductors 5a-5d and 5<SP>1</SP>a-d through further bifurcated conductors 4a-4d above and below the duct. The current flowing through the bifurcated conductors 3a- 3d and 4a-4d make a complete loop round the magnetic poles above and below the duct, these poles being graded at each end if desired. Each current loop is fed separately, preferably from separate transformer secondary windings.
Patent GB-884339-A (GB)
Title: Improvements in or relating to photographic exposure methods and apparatus
Inventor: NEALE DENIS MANKTELOW
IPC: G03B27/80
Filed: 1959-08-14
Abstract: 884,339. Photo-electric control of photographic printing. ILFORD Ltd. Aug. 2, 1960 [Aug. 14, 1959], No. 27857/59. Class 40(3). I n photographic printing apparatus the finite delay between a predetermined integral of light falling on a photocell and the exposure being termi- -nated is compensated by allowing an equivalent light integral to fall on the photocell before initiation of the printing. Printing is initiated by closing gauged switches 19, 20 which commence integration of the light falling on the cell 9 and energise a solenoid 17 to release a shutter 7. When cell 9 has received the predetermined light integral, a solenoid 18 is energised to release a shutter 8. The paths of shutters 7 and 8 and the strengths of springs 13 and 14 are adjusted to equate the light integral falling on cell 9 and the printing paper 6 during the travel of shutters 7 and 8 respectively. If cell 9 is placed behind shutter 7, and is uncovered thereby before lens 5, switch 19 may be omitted. Shutter 7 may be stepped or obliquely shaped to do this. Specification 788,920 is referred to.
Patent GB-1587566-A (GB)
Title: Sputtering device and method
IPC: H01J37/34
Filed: 1977-07-04
Abstract: An atomising device includes a cathode (1), the upper surface (3) of which consists of the material to be atomised, a magnetic device for generating one or more magnetic fields (2), by which at least one electron trap for the surface (3) of the cathode is determined, and an anode (5). These electron traps can be moved along the cathode surface (3). In this way, it is possible to atomise the cathode very evenly by continuous or periodic movement of the electron traps, so that the cathode material is very efficiently used. <IMAGE>
Patent GB-720356-A (GB)
Title: Method of operating electrically heated cooking plates
IPC: H05B3/68
Filed: 1952-11-05
Abstract: 720,356. Electric hot-plates; current supply. SCHOBERLE, F. Nov. 5, 1952, No. 27896/52. Class 39 (3) [Also in Group XXXVII] A cooking plate which is switched off when a vessel thereon reaches a desired temperature comprises an annular plate 1 with a heating resistance 2 embedded in a ceramic mass therein and is supported on a casing 3. A central feeler plate spaced from the annular heater is supported on springs 9 and depressed when a vessel is placed thereon, the plate 7 having a spiral bimetal 10 soldered to its underside controlling a mercury switch 16. The inner end of the spiral bimetal 10 is rigidly joined to a square bolt 11, which has a circular groove in which is freely suspended a pendulum 12 carrying the mercury switch 16. When no saucepan is standing on the cooking plate, the feeler plate 7 is held in the raised position by the springs 9 and a lateral arm 13 on the pendulum 12 engages the underside of a plate 4 and forces the pendulum 12 into an inclined position in which the switch is off. When a pan is placed on the cooking plate, the plate 7 is depressed and the pendulum falls into a vertical position, in which the switch is " on." The plate 7 is heated by radiation from the heater and casing 3 and so transmits heat to the vessel 3 until the vessel and plate 7 reach the same temperature, and the bimetal 10 then turns the bolt 11 and an arm 14 thereon engages the pendulum 12 to raise it to an inclined position and turn off the switch 16. The switch cycles until the vessel is removed. The temperature may be adjusted by adjusting the arm 14. on the bolt 11.
Patent GB-1186067-A (GB)
Title: Improvements in or relating to Circuit Arrangements including a Colour Display Cathode Ray Tube of the Index Type
Inventor: FREEMAN KENNETH GEORGE
IPC: H04N9/24
Filed: 1967-06-16
Abstract: 1,186,067. Colour television. MULLARD Ltd. 16 June, 1967, No. 27918/67. Heading H4F. Fluctuations in the amplitude of the beam indexing signal, which is derived from a colour cathode-ray display tube 1 by means of photoelectric cell 4, are reduced by cutting off the video signal to the tube via gate 3 for a period at the beginning of each field, e.g. for lines 1 to 5 or 3 to 10, and deriving a signal proportional to the tube current via a gate 7, which signal is then compared with a reference potential from a source 10 in a circuit 9 to obtain a control signal which is applied to the tube via video amplifier 2 to reduce the fluctuations throughout the whole of the field. In effect the control signal functions to stabilize the tube black level current at a value such that the beam indexing signal does not cease. Gates 3 and 7 are controlled by a pulse generator system 8 (explained more fully with reference to Figs. 3 and 5, not shown) which is triggered by both the field flyback pulses on lead 11 and the index signal from photo-electric cell 4. As illustrated, the signal representative of the tube current is derived from the indexing signal at the output of amplifier 5. In alternative arrangements, Fig. 2 (not shown), the signal is obtained from (1) the output of photo-electric cell 4, (2) the output of a frequency divider in the indexing signal circuit, (3) the output of an amplifier in the indexing signal circuit which transmits the " run-in " frequency signal produced at the beginning of each scan line, or (4) the cathode circuit of the cathode-ray tube. Circuit 9 includes a first peak detector which incorporates a comparator for comparing the detector output with an adjustable reference potential from source 10. The detector has an integration time long compared with the line scan period. The comparator output is fed to a second peak detector having an integration time long compared with the field scan period. The resulting D.C. control potential is applied through a D.C. amplifier to video amplifier 2 which is D.C. coupled to the cathode-ray tube. A diode clipping circuit is provided to prevent the system establishing a high level of tube current when gate 7 first opens in the absence of an indexing signal. Gate 5 may also be blocked for field flyback suppression. Detailed transistor circuit (using known circuit techniques) for pulse generator system 8 and circuit 9 are described with reference to Figs. 4 and 7 (not shown).
Patent GB-333079-A (GB)
Title: Improvements in the manufacture and production of acrylic acid chloride
IPC: C07C51/62
Filed: 1929-09-14
Abstract: 333,079. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 14, 1929. Acrylic acid chloride is prepared by bringing #-chloropropionic acid chloride, preferably in the form of vapour, into contact, while heating, with catalysts splitting off hydrogen chloride from organic compounds containing chlorine. The vapour of the acid chloride may be diluted with inert gases such as nitrogen or carbon dioxide. Examples of catalysts are metal chlorides such as barium chloride, metal oxides such as alumina or bauxite, sherds of burnt clay or similar highly porous argillaceous materials which consist mainly of alumina and may contain silica, iron, magnesium and other elements. Examples of the process are given using temperataures of 140 to 300‹ C.
Patent GB-390435-A (GB)
Title: Improvements in or relating to rinsing, cleansing and fatremoving agents
IPC: C23G1/16
Filed: 1931-11-20
Abstract: Cleansing-agents consist of preponderating quantities of alkaline alkali phosphates mixed with aluminium phosphate, tin phosphate, or both, in such proportions that 1 per cent or stronger aqueous solutions do not attack aluminium, tin, or their alloys at temperatures up to 90 DEG  C.  For example, 950 kg. of crystalline trisodium phosphate is mixed with 50 kg. of aluminium phosphate; a 5 per cent solution is used.
Patent GB-1260909-A (GB)
Title: Improvements in snap-action hot wire power switching relay
Inventor: STAPLES P R
IPC: H01H61/02
Filed: 1969-06-04
Abstract: 1,260,909. Thermal relays. GENERAL ELECTRIC CO. 4 June, 1969 [14 June, 1968], No. 28179/69. Heading H1N. In a hot wire thermal relay, a current carrying wire 16 Figs. 1, 2 is looped between terminals 74, 75 and lugs 76, 77, 78 so that it engages at several slots 82 on a common actuator 80 associated with a snap-action spring 18 for operating contacts 21. The arrangement is such that expansion of the wire 16 permits the actuator to move away from the spring 18 and engage end stops 97 whereby the heated wire 16 after operating the contacts is relieved of strain and consequential tension creep effects. The actuator 80 carries an adjusting screw 86 engageable with a detent 88 Fig. 7 in the control leg 36 of snap-action spring 18 which rests on an adjusting screw 49 at one end 42 which has side lugs 46 pivotally engaging in grooves 47 of the casing. The side legs 38, 39 of the spring are corrugated and rest pivotally on the base of casing 11. An aperture 67 and lug 68 at the other end of the spring 18 locate an insulating carrier 55 pivotally carrying a pair of bridging contacts 21. In operation the contacts 21 are normally held open (as shown in Fig. 2) but on heating the wire 16, the actuator 86 rises and the spring 18 bows conversely upwards whereby the carrier 55 drops (Fig. 4, not shown) to engage the contacts 21.
Patent GB-468028-A (GB)
Title: Improvements in and relating to woodworking machines
IPC: B27C9/02
Filed: 1936-10-19
Abstract: 468,028. Universal wood - working machines; tool grinding. TRAVIS, S., and ROBINSON, S. Oct. 19, 1936, No. 28332. [Classes 60, 145 (i), and 145 (ii)] [Also in Group XXII] A universal woodworking machine adaptable for purposes such as vertical spindle moulding, tenoning, stair housing, surface planing, moulding, boring, mortising, cross-cutting, and the like comprises a frame supporting both a worktable and a prime mover which is directly associated with the cutting tool and is carried by pivoted, rotatable, and slidable means which allow it to be moved to actuate the tool in any desired position either above or below the table. In the machine shown, an electric motor 3 carries a transverse tool spindle 7 which it drives through helical gears, the cylindrical body of the motor being rotatably mounted in a housing 4 so that it may be turned to bring the spindle from the horizontal position shown in Fig. 1 to the vertical position shown in Fig. 4. The housing 4 is rotatably mounted by means of a trunnion or pivot 9 on the underside of a base 8 slidably mounted in a vertically-movable part 16 of the work-table. Locking means 20, 21 secure the base 8 in position at either end of the part 16, and rollers 19 may be provided to facilitate the sliding movement. The movable part 16 of the table is mounted on the top of a frame, the uprights 22 of which slide in guides 22a on the side of the machine frame, vertical movement being effected by a screwed shaft 24 engaging in the frame cross-member 23a and rotated through gearing by a hand wheel 29. In this way the part 16 may be raised to bring the spindle 7 above the table for operations such as tenoning, cross-grooving, cross-cutting, and tool grinding. Fig. 3 showing an intermediate position. For planing a separate attachment with its own frame, table, and cutter spindle may be used, the main machine being adjusted as shown in Fig. 3 and serving only a source of power.
Patent GB-463271-A (GB)
Title: Improvements in hollow metal door knobs and other knobs of a like character
IPC: E05B1/00
Filed: 1935-10-15
Abstract: 463,271. Knobs. WOLVERHAMPTON DIE-CASTING CO., Ltd., and WHITEHEAD, E. G. Oct. 15, 1935, No. 28380. [Class 52 (i)] A hollow metal knob has an outer section A provided with an integral axial stalk a, which enters an axial hole in an inner section B and is prevented from turning relatively to the latter. The parts are preferably secured by swaging the end of the stalk into a chamfer b<2> in the neck of the inner section.
Patent GB-298137-A (GB)
Title: Improved process for concentrating acetic acid
IPC: C07C51/46
Filed: 1928-10-03
Abstract: 298,137. Wacker Ges. f³r Elektrochemische Industrie Ges., Dr. A. Oct. 3, 1927, [Convention date]. Right to Patent relinquished. Acetic acid.-Dilute acetic acid is concentrated by distillation with an acetic ester of boiling point between 105-135‹ C., e.g. butyl acetate, iso-butyl acetate, iso-amyl acetate, &c. Thus, acetic acid of 40 per cent strength may be mixed with butyl acetate and heated in a still connected to a distillation column and dephlegmator until practically all the water has been removed in the form of an azeotropic mixture. The condensate obtained separates in an aqueous and an oily layer of which the latter containing the butyl acetate is run back into the still whilst the aqueous layer containing 0.2 per cent of acetic acid is drawn off. A residue in the still is finally obtained containing a small percentage of butyl acetate to which sufficient water in vapour or liquid form is added, to form an azeotropic mixture which is heated, the butyl acetate and the water distilling off leaving a residue of acetic acid of 95 per cent strength.
Patent GB-1520940-A (GB)
Title: Production of low molecular weight urethane polymer dispersions
IPC: C09K23/52
Filed: 1977-06-16
Abstract: 1520940 Urethane-stabilised pigment dispersions CIBA-GEIGY AG 16 June 1977 [8 July 1976] 28415/76 Heading B1V [Also in Division C2]  Pigment dispersions comprises urethane polymers, e.g. those of the formula I: wherein D is the residue of a dihydroxy compound and n is from 1 to 3, which have been obtained by polymerising until no free isocyanate can be detected, a reaction mixture containing a di-isocyanate, a C 2-4  aliphatic diol and a C 10-22  monohydroxy compound, mole ratios of 2:1:2 to 4:3:2 in a hydrocarbon solvent containing from 7.5 to 50%, by weight of a primer, the primer being a pre-formed urethane condensation product, together with pigments. Examples illustrate dispersions based on #-copper phthalocyanine blue pigments. The dispersions may be added to long oil alkyd/white spirit compositions to form paints or to zinc-calcium resinate (with or without phenolic modified resinate)/aliphatic, aromatic or mixed hydrocarbon solvent compositions to form publication rotogravure inks.