baber/WOPTO huggingface dataset:
Patent GB-1035440-A (GB)
Title: Aircraft flight control systems monitored to detect malfunction
IPC: G05D1/04
Filed: 1964-10-16
Abstract: 1,035,440. Automatic control of aircraft. SPERRY RAND CORPORATION. Oct. 16, 1964 [Oct. 18,1963], No. 42274/64. Heading G3R. A device detecting malfunction of an aircraft attitude servo control system initially responds to operation of the servo-system and to a command signal applied to the servo system, the effect of the latter being attenuated to a low value after a predetermined interval. In Fig 1 (not shown), the pitch attitude of an aircraft is automatically stabilized by signals from a pitch rate gyro 11 and the pitch pick-off of a gyro-vertical 14 applied through a servo-system 13 to control elevators 40. A signal which is a function of the angle of bank, derived from from a device 20, is also applied to servo-system 13 to compensate for loss of lift during turns. Signals from a radio receiver 30 or an altimeter 33 may be applied to servo-system 13 by operation of an appropriate switch 31 or 34 if it is desired to follow a glide path or maintain a constant altitude. Pitch altitude may also be manually controlled by closing a switch 26 and operating a knob 25 to apply signals to servo-system 13. Elevator position and rate follow-up signals are generated by devices 42, 43. Correct operation is monitored in two ways. In one, the signals from gyro-vertical 14 are differentiated at 46, filtered at 47 and compared at 50 with signals from the pitch rate gyro 11, compensated for errors during turn by signals from lift compensating unit 20 and applied through a filter 45. Any difference exceeding a predetermined value indicates a malfunction and causes de-energization of an elevator clutch 41. In the other monitoring system, all the signals applied to servo-system 13 are also applied to a computer 52, simulating response of the servo-system, the output of which is compared at 50 with the output of servo-system 13 as represented by signals obtained from the position and rate generators 42, 43 so that excessive difference here is also effective to de-clutch the elevators. The signals from radio receiver 30 and altimeter 33, which may be large when first engaged, are applied to computer 52 through circuits 54, 53 which attenuate the signals to a low value in a predetermined time so that thereafter, when they are small, they are effectively applied to servo-system only and cause de-clutching of the elevators if they exceed a predetermined value. A temperature-compensated resistance-condenser transistor network for effecting this attenuation is described.
Patent GB-1505851-A (GB)
Title: Sewing machine safety device
IPC: D05B3/02
Filed: 1975-10-15
Abstract: 1505851 Sewing-machines SINGER CO 15 Oct 1975 [1 Nov 1974] 42312/75 Heading DIG  A sewing machine having a needle-bar jogging device 44, 32, 12 for zig-zag stitching is provided with an electrically-operated mechanism 62, 52, 46 for inhibiting operation of the jogging device when a straight-stitch throat plate 94 or a straight-stitch needle aperture 150 is arranged below the needle as detected by a switch 81. The inhibiting mechanism comprises a latch member 52 which can be raised on energisation of a solenoid 62 to engage a plug 46 on a link 32. Alternatively the solenoid may raise a plug directly into a hole in the link. The switch may also deenergise an electromagnetic jogging actuator 44 in needle-centred position simultaneously with actuation of the solenoid 62. The actuator 44 may be replaced by a cam device in which case the link has two mutually spring- loaded parts. The switch 81 is biassed upwardly. In Fig. 1 where alternative throat plates are provided the switch enters a recess 98 in the zig-zag plate 82 but is depressed by the straight-stitch plate 94 which has no recess. Alternatively a toggle switch may be used, the two plates having recesses corresponding to respective ends of the switch so that the latter adopts respective positions corresponding to the plates. In Fig. 9 a single throat plate 146 is used which is displaceable to locate either a straight-stitch aperture 150 or a zig-zag aperture 148 under the needle. In the former case the switch 81 is depressed by a portion 152; in the latter it is received in a recess 154.
Patent GB-1521917-A (GB)
Title: Horizontal deflection circuit for television receivers
IPC: H03K4/83
Filed: 1975-10-16
Abstract: 1521917 Horizontal deflection circuit INTERNATIONAL STANDARD ELECTRIC CORP 16 Oct 1975 [24 Oct 1974] 42445/75 Heading H3T A horizontal deflection circuit comprises a commutable switch SH for conducting current through deflection coils LA during part of the sweep; a commutating circuit comprising a switch SK, commutating capacitor CK and commutating coil LK in series connected across the commutable switch and the deflection coils, and a storage inductor LE to supply D.C. energy to the commutating capacitor; and a series RC attenuator CD, RD connected via a capacitor C to earth the whole being in parallel with the commutable switch. The control circuit for the commutable switch is derived from the node between the attenuator and capacitor C. An additional inductance L may be provided to shape the control signal, and a capacitor C serves as an energy store for this signal current.
Patent GB-1002157-A (GB)
Title: A new or improved push-button assembly
IPC: F21V8/00
Filed: 1961-11-28
Abstract: 1,002,157. Visible signalling apparatus. AGA A.B. Nov. 28, 1961 [Dec. 10, 1960], No. 42463/61. Heading G4F. [Also in Division H2] A push-button 2 of light transmitting material has two reflecting surfaces 9, 12 each reflecting light from a lamp 6 to different parts 8, 11 of the visible end of the button. The button 2 projects through an opaque screen 1 arranged to interrupt the light to the upper reflecting surface 12 when the button is released so that when released the central area 8 only of the button is illuminated but when depressed both areas 8, 12 are illuminated. The inner area 8 may be faced with an opaque film through which suitable markings are formed. The assembly of Fig. 1 may be extended in either direction so that each button receives light from two lamps and each lamp illuminates two buttons. More than two buttons may be illuminated by a single lamp.
Patent GB-1384486-A (GB)
Title: N-alkyl-n-o-tolylanthranilonitriles and their use in the preparation of 5-alkyl-10-amino-dihydrodibenzoazepines
IPC: C07D/
Filed: 1973-09-11
Abstract: 1384486 N-alkyl-N-o-tolylanthranilonitriles; 5 - alkyl - 10 - amino - 10,11 - dihydrodibenzazepines RHONE-POULENC SA 11 Sept 1973 [12 Sept 1972] 42729/73 Heading C2C Novel N - alkyl - N - o - tolylanthranilonitriles having the general formula wherein R is (C 1 -C 5 ) alkyl, may be prepared by alkylation of N-o-tolylanthranilonitrile, e.g. by means of an alkyl halide or dialkyl sulphate in an inert solvent and in the presence of an alkaline inorganic agent. 5 - Alkyl - 10 - amino - 10,11 - dihydrodibenzazepines having the formula may be prepared by reacting one of the compounds of the invention with an alkali metal amide (prepared from an amine) in an inert organic solvent at a temperature of from - 25 to +50 C., the amount of alkali metal amide employed being at least one mol. per mol. of anthranilonitrile in the reaction mixture, and converting the imino radical in the resulting 10-imino-10,11-dihydrodibenzazepine of the formula  to the amino radical by catalytic hydrogenation. The alkali metal amide is preferably prepared by reacting a secondary amine, e.g. piperidine, dimethylamine, diethylamine or N- methylaniline, with an alkali metal or organoalkali metal compound, e.g. phenyl-lithium, naphthyl-lithium or naphthyl-sodium.
Patent GB-946317-A (GB)
Title: Helical belt drier wherein the drying medium flows through the material
IPC: F26B21/04
Filed: 1960-12-12
Abstract: 946,317. Endless conveyers. BUTTNER. WERKE A.G. Dec. 12, 1960 [Dec. 24, 1959], No. 42755/60. Heading B8A. [Also in Division F4] A helical belt for the conveyance of material through a drier comprises latticed screens 4, Fig. 2, carried by an endless chain 3, the links of which carry projections 5, to engage driver rods 2 attached to a rotating closed cylinder 1, Fig. 1. The screen frames have metal plates 8 in accordance with the curvature of the cylinder 1 and drier housing 7 and the frames also have plates 9 which cover the free triangular gaps created by the screens during their helical passage through the drier, which plates are slid under the following screen when the screens are moving along rectilinear paths of travel on approaching and leaving the drier. The material is dried by the passage of hot air therethrough supplied and discharged through eccentrically mounted ducts 12, 13 respectively. Specification 478,843 is referred to.
Patent GB-1477346-A (GB)
Title: Electrical installations
IPC: F21V21/34
Filed: 1974-10-02
Abstract: 1477346 Power take-off adapter ROTAFLEX (GREAT BRITAIN) Ltd 24 Sept 1975 [2 Oct 1974] 42797/74 Heading H2E A power take-off adapter 10 for use with electrical installations of the continuous outlet type comprising a channel section track member 20 having spaced parallel conductors 22 extending longitudinally of the track, the adapter comprises a housing 10, contact fingers 13 movable with respect to the housing between operative and inoperative positions by manual operation of a first rotary member 11 and mechanical fixing means 14 operable to secure the adapter releasably to a track member by manual rotation of a second rotary member 12 independently of the first rotary member 11, both members 11 and 12 having mutually interengageable portions, cams 11A, 12A with handles 11B, 12B respectively, which only permit rotation of the first rotary member 11 when the second rotary member 12 is in an operative position (Fig. 7) corresponding with the securing position of the fixing means 14. Contact fingers 13 are insulated from each other and are connected to the flex of an appliance (not shown) inside the housing 10. In a modification (not shown) the adapter has 3 or more conductors.
Patent GB-1323498-A (GB)
Title: Liquid cleaner
IPC: B01D29/01
Filed: 1971-09-14
Abstract: 1323498 Filter apparatus ROBERT BOSCH GmbH 14 Sept 1971 [19 Oct 1970] 42843/71 Heading B1D A filter apparatus for removing water and solid particles from liquid fuel comprises a cylindrical housing 15 having closure elements 20, 21 at either end these elements having axial openings 24, 25 respectively and other openings 22, 23 respectively therein. A conical baffle 26 is fixed to closure element 20 and divides the housing interior into two compartments 29, 30 connected by an annular channel 28. The conical baffle carries a concave-convex screen 31 at its lower end which extends into chamber 30. Connector 10 is screwed into the axial hole in closure member 20, to provide an inlet 12 for fuel entering the housing and an outlet 13 for filtered fuel. Connector 34 is screwed into the axial hole in closure element 21 and provides communication with a glass walled chamber 35 and a sealable lower outlet 38. Fuel enters at 12 into an annular chamber 17 formed in the connector 10, passes down through holes 22 into compartment 29 and then into compartment 30 via passage 28. Water and solid particles sink into glass walled compartment 35 from where they are periodically drained via 37 and 38. Fuel rises through screen 31 and leaves through outlet 13. Air bubbles are prevented from passing through screen 31 by the fine mesh size chosen and move up the surface of the screen, then chamber 29 into annular chamber 17 from where they pass via vent 18 to the outlet 13. The screen prevents solid particles from reaching the outlet.
Patent GB-1391569-A (GB)
Title: Miniature-image producing spectacles and binoculars
IPC: G02C7/16
Filed: 1973-09-12
Abstract: 1391569 Television A P PEDRICK 12 Sept 1973 42895/73 Heading H4F [Also in Division G2] A pair of glasses (spectacles or binoculars) has in each eye piece, a translucent screen on which an image of the scene before the user is formed by a pin-hole (Fig. 15, not shown). This arrangement is designed to enable the scene to be viewed by foreal vision only, so that the user of the glasses sees every thing on a greatly reduced scale but much clearer than with the unaided eye. Variants (Figs. 16 to 20, not shown) exhibit the following particular features: (Fig. 16) the pin-holes are in a holder detachably mounted on an ordinary pair of spectacles; (Fig. 17), fibre optic tubes receive the incident light and guide it to the pin-holes; (Fig. 18), a closedcircuit TV camera-and-receiver system replaces the optical fibres of Fig. 17; (Fig. 19), the system of Fig. 18, is incorporated in a pair of binoculars; (Fig. 20), a three-dimensional television.system is incorporated in a pair of binoculars.
Patent GB-937248-A (GB)
Title: Improvements in and relating to apparatus for determining the percentage heat loss in boiler or like furnaces
Inventor: FISHER FREDERICK DONALD
IPC: G01N25/28
Filed: 1960-12-14
Abstract: 937,248. Electric analogue calculating. CAMBRIDGE INSTRUMENT CO. Ltd. Sept. 29, 1961 [Dec. 14, 1960], No. 42960/60. Class 37. [Also in Group XXXVIII] The invention is concerned with determining the efficiency of a boiler by measurement of the rise in temperature of the flue gases (t), the percentage of carbon (c) and hydrogen (h) in the fuel, the weight (w) in grams of water per 100 grams of fuel, the percentage (x) of free oxygen in the dry flue gases, the percentage (r) of combustibles in the dry flue gases and the calorific value of the fuel H. The percentage heat loss is said to be given approximately by The Figure shows an apparatus for evaluating the equation. Firstly the quantity x is evaluated by a magnetic oxygen meter 1 which produces an output reversed in polarity to that of a battery 4 to produce a current proportional to 21 - x. The current flows through a resistor 8 set in accordance with the calorific power of the fuel to develop a voltage representing the bottom term of the equation and apply it across a potentiometer slide wire 7. The first of the three top terms is developed as a voltage from thermocouples in the boiler air supply and flue gases or a resistance thermometer and multiplied by a resistor 12 in two parts set respectively to c and h. The value r is determined from a Katharometer 13 which may be as described in Application No. 19615/61 multiplied by c and h values in a two-part resistor 14. The third term in the top of the equation is converted into a voltage by allowing the current 21 - x to flow through a resistor set in accordance with h and w. The three voltages thus developed are applied in series to the potentiometer by a servo amplifier 10 and slider 9. The potentiometer is self-balancing and the position of the slider gives boiler efficiency.
Patent GB-1276406-A (GB)
Title: Improvements in or relating to ice making machines
IPC: F25C1/14
Filed: 1970-09-10
Abstract: 1276406 Ice making machines WHIRLPOOL CORP 10 Sept 1970 [17 Oct 1969] 43395/70 Heading F4H An ice making machine 10 comprises evaporator coils 12 surrounding a cylinder 11, a rotatable auger 18 having helically disposed. blades 22 with edges 23 positioned adjacent the cylinder 11, a collecting chamber 24 which, conducts the mass of ice particles into a discharge passage 29, compression means 38 for receiving the ice advanced through the passage 29 and removing water therefrom, and interchangeable extrusion means to configure the product in selectively different shapes. As shown, the extrusion means forms the ice into a columnar configuration free of stress cracks. In other embodiments, the compression means are replaced by units which form the ice into ice cubes, thin layers and small irregular chunks.
Patent GB-1263954-A (GB)
Title: Photoflash lamp
Inventor: SHAFFER JOHN W
IPC: G03B15/04
Filed: 1969-09-02
Abstract: 1,263,954. Flash-bulbs. GTE SYLVANIA Inc. Sept.2, 1969 [Aug.30, 1968], No.43465/69. Heading G2L. In a percussively ignitable flash-bulb of the type in which the primer consists of a tube extending from one end of the envelope and containing a quantity of fulminating material disposed on a wire anvil, the wire is made of a chromiumcontaining material which is chemically compatible with and non-contaminating towards the fulminating material and has a coating of chromium oxides thereon. The wire preferably consists of stainless steel having a high chromium content (17%-21% by weight) which can be provided with a black velvet-like coating of chromium oxide by heating it in an atmosphere of moist hydrogen.
Patent GB-966150-A (GB)
Title: Improvements relating to rotary-piston internal combustion engines
IPC: F02B53/00
Filed: 1962-11-16
Abstract: 966,150. Rotary-piston internal combustion engines. DAIMLER-BENZ A.G. Nov. 16, 1962 [Nov. 18, 1961], No. 43483/62. Heading F1F. In a rotary-piston internal combustion having a housing 1 of epitrochoidal inner profile 2 over which moves a three-sided piston 3 having curved flanks, the inlet port 5, through which air is admitted in the case of a fuel-injection engine and a fuel-air mixture in the case of a carburetted engine, comprises a spiral portion 7 whose axis 8 is substantially perpendicular to the piston track and which through a straight portion 9 opens through the profile 2, so that the air or fuel-air mixture is given a whirling motion to produce turbulence to improve combustion.
Patent GB-1142376-A (GB)
Title: Improvements in or relating to safety belts
Inventor: WEMAN PER OLAF
IPC: B60R22/12
Filed: 1966-09-30
Abstract: 1,142,376. Safety harness. SIGMATEX A.G. 30 Sept., 1966 [30 Oct., 1965], No. 43735/66. Heading A3V. [Also in Division B2] A safety belt comprises a flexible webbing of inter woven strips of synthetic resin material, selected portions of the webbing being locally stiffened. The selected portions may be stiffened by a coating of a synthetic resin. The coating may be applied by dipping selected portions of the webbing into a synthetic resin in liquid form and the coating may be subsequently vulcanised or cured. The synthetic resin used for the coating may have a lower softening point than the material of the strips. Synthetic resins for the coating mentioned are polyamide, polyester. The webbing may also be reinforced by welding together the strips making use of ultrasonic waves.
Patent GB-1170479-A (GB)
Title: Improvements to Warp-Tying Machines and the like
IPC: D03J1/16
Filed: 1967-09-26
Abstract: 1,170,479. On and off castors. ZELLWEGER Ltd. 26 Sept., 1967 [6 Jan., 1967], No. 43735/67. Heading A4U. [Also in Division F2] A frame for warp-tying machines and the like consists of vertically adjustable feet 1 connected with brackets 2 which are mounted on castors 3, 4 and comprises a supporting strut 8 which is mounted in the frame and which is connected with a rotatably mounted treadle board 7 of the frame on a strut 6 such that when the treadle board is folded down the support strut 8 rests on the floor to prevent movement of the frame. Fig. 1 shows the position when the treadle board is up and the supporting strut 8 is pulled in between the castors to face the warp beam 10 on the loom. When the treadle board 7 is folded downwards, (Fig. 3) the supporting, strut 8 is arranged to reach the floor just before the treadle board reaches its end position and abuts against a stop 15.
Patent GB-1224157-A (GB)
Title: Itaconic acid purification process using reverse osmosis
IPC: B01D61/02
Filed: 1969-09-04
Abstract: 1,224,157. Itaconic acid. CHAS. PFIZER & CO. Inc. 4 Sept., 1969 [16 June, 1969], No. 43933/69. Heading C2C. Itaconic acid is purified from an aqueous solution by passing through a semi-permeable membrane which is water permeable and has sodium sulphate retaining properties. The inorganic salts, coloured matter, and organic impurities are retained by the membrane and the aqueous itaconic acid passed. Membranes of a water-permeable polyamide and cellulose ester may be used under a pressure of from 100 to 1000 pounds per sq. inch, and at a pH range of 2 to 4. The itaconic acid from this reverse osmosis or ultrafiltration process is recovered by removal of excess water.
Patent GB-1120125-A (GB)
Title: Method of producing a ferromagnetic member by cold rolling
Inventor: GOULD HAROLD LOTHROP BORDEN
IPC: H01F1/03
Filed: 1965-10-19
Abstract: <PICT:1120125/C6-C7/1> A ferromagnetic member comprising an alloy consisting of 78 to 95% by weight cobalt, 0 to 4% by weight vanadium, remainder iron, is produced by reducing a body of the alloy by cold rolling with at least a 90% reduction.  The above method results in a constricted hysteresis loop Fig.1A, but if after rolling, the body is subjected to partial annealing, a four quadrant loop is formed, Fig.3. When the ferromagnetic member to be cold rolled is a strip, it may be formed from a casting or ingot which is hot rolled to a flat strip, surface defects are removed by machining, pickling, or shot blasting, and the strip is annealed in a protective atmosphere of hydrogen forming gas, nitrogen, argon, or helium. Several examples of different alloys treated in different ways are described. A current limiter has a core 1, Fig.7, of a constricted loop composition, fabricated from flat strips of ferromagnetic material, and has turns of wire 2 wrapped around it, and connected to a D.C. source 3, and a load 4.  A memory element or twistor comprises a metallic conductor 10 Fig.8, having a helical winding 14 of ferromagnetic material as described.
Patent GB-1535019-A (GB)
Title: Field effect devices
IPC: H01L21/8247
Filed: 1977-10-25
Abstract: 1535019 Semiconductor devices INTERNATIONAL BUSINESS MACHINES CORP 25 Oct 1977 [19 Nov 1976] 44409/77 Heading H1K The threshold voltage of an IGFET is stabilized by applying a gate-substrate potential Vg to inject minority carriers into the gate insulation without causing avalanche breakdown, and applying A.C. pulses Vp to the source and drain to inject minority (with respect to the substrate) carriers into the substrate and thence into the gate insulation without causing avalanche breakdown. Threshold shifts are rapidly stabilized by this method, which may also be used to alter the charge condition in non- volatile IGFET memories.