baber/WOPTO huggingface dataset:
Patent GB-737393-A (GB)
Title: Enclosure air supply system
IPC: B64D13/06
Filed: 1952-09-23
Abstract: 737,393. Ventilation. GARRETT CORPORATION. Sept. 23, 1952 [Oct. 18, 1951], No. 23802/52. Class 137. In an air supply system, particularly for an aircraft compartment, a compressor 9 for ambient air discharges to atmosphere through a cabin supply duct 14 and a cabin exhaust duct 18, 20, 28, 29, the exhaust duct including combustion-power means 26, 27 which drive the compressor, and a valve-controlled duct 12 connects the compressor to the combustion-power means, the air inlet 14 to the cabin also being valve controlled. The compressor 9 receives ambient air at 10 and passes it to a duct 11 which branches at 12 through the check valve 23 to the combustion chamber 26 supplying the gas turbine 27 which drives the compressor 9. The duct 11 further branches at 13, 14, the branch 13 being for supplying pneumatic devices such as the starting equipment for the main engines. The branch 14 leads to the cabin 16 in which the pressure is maintained and regulated by a conventional outflow valve 17. Exhaust cabin air passes through the duct 18 to a positive displacement compressor 43, connected to the transmission shaft 41 of the turbine 27 by a shaft 44, which acts as positive control for the exhaust air outflow and serves to keep the pressure drop across the turbine 27 at a substantially constant value irrespective of the ratio of cabin air pressure to ambient air pressure. The exhaust air is led to atmosphere either through the duct 19, or through the duct 20 and check valve 22 to the combustion chamber 26 and from thence to atmosphere either through the duct 29, or, if the air to be admitted to the cabin needs to be warmed, through a heat exchanger 31, this being determined by a temperature-responsive means 34 controlling a valve 32. The flow of air to the cabin is controlled by a valve 35 having an actuator responsive to conditions in the venturi 36, and further responsive to heat-sensitive means 37 in the turbine exhaust duct 28. Refrigerating means 38 is positioned in the duct 14, the air being cooled thereby when necessary, and to an extent determined by the flow through a bypass 39, the valve 40 being controlled manually or automatically. A valve 47 prevents the formation of a vacuum in the cabin when starting up the air-supply apparatus. The compressor 43 may, at extreme altitudes, operate as a power-delivery device to assist the turbine 27. A conventional starter 42 and electric generator 46 are shown.
Patent GB-916463-A (GB)
Title: Improvements in or relating to dielectric heating apparatus
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/46
Filed: 1959-07-10
Abstract: 916,463. Automatic tuning control systems. RADYNE Ltd. July 8, 1960 [July 10, 1959], No. 23809/59. Class 40 (5). In a dielectric radio frequency-heating apparatus the tuning of an output stage driven from a high stability oscillator is cyclically varied and its outputs at extreme frequencies of the variation compared to produce a control voltage correcting any mistuning. In Fig. 2 a power amplifier tank circuit energized from a crystal oscillator comprises a short cylindrical cavity 16 with capacity-forming cylinders 24, 26, 28 extending from opposite end faces 20, 22, and through a loop 32 feeding the work electrodes 33. The internal capacity is cyclically varied by a capacitive reed 29 vibrated by a mains-operated armature 30 and output fed to a diode rectifier 38 and pair of backbiased thyratrons 44, 46 with anodes energized at mains frequency. Mistuning unbalances the pulsating negative output of the rectifier 38 so that one or other of the thyratrons is energized or both unequally so and one or more step-by-step motors 56, 58 driven to adjust a movable capacitive vane 59 in the tank circuit 16 to correct the tuning. Alternatively, the tank circuit tuning may be wobbled by a reactance valve. The oscillator and power amplifier may be enclosed in a screen to reduce harmonic radiation and all leads into it provided with filters. A push-pull cavity power amplifier as in Specification 916,464 may be used.
Patent GB-321717-A (GB)
Title: Improvements in or relating to filters for use in artificial silk apparatus
IPC: B01D29/00
Filed: 1928-08-18
Abstract: 321,717. Wade, H., (Syntheta Akt.-Ges.). Aug. 18, 1928. Filters having sheet filtering - material. - Filters for use in artificial silk apparatus situated between the pump that supplies the spinning solution and the spinning nozzle, comprise a filter candle, Fig. 1, having a hollow filter carrier 5 screw-threaded at 9 and with grooves at 10 on its outer surface communicating with holes 11 extending into the interior of the casing. A filter sheet is placed over the threads 9 and the silk passes from an inlet 4 through the filter to an outlet 12. The parts are threaded together at 6 &c. for ready detachment and a threaded plug 14, allows easy cleansing of the member 5. The filter carrier is surrounded by a jacketed casing 2 whereby the solution may be maintained at a temperature below its boiling point.
Patent GB-929579-A (GB)
Title: Improvements relating to high-voltage insulating lead-in bushings and their manufacture
Inventor: YOUNG AUSTIN FREDERICK BRABANT
IPC: H01B17/28
Filed: 1960-07-07
Abstract: 929,579. Insulators. A. REYROLLE & CO. Ltd. Oct. 6; 1961 [July 7, 1960], No. 23827/60. Class 36. A high-voltage lead-in bushing insulator comprises a rigid cellular structure of foamed synthetic resin e.g. thermosetting casting resin where the individual sealed cells are filled with gas of high dielectric strength at a superatmospheric pressure. As shown, the bushing includes tapered insulating shells 10A and 10B, preferably of porcelain and solid cast resin respectively, their open ends being secured to opposite sides of a metal sleeve 11 which is mounted on a support 12. A conductor 13 extends through the centre of the bushing and the space around the conductor within the shells and the sleeve 11 is filled with a rigid cellular structure of foamed synthetic resin preferably an epoxy resin, a polyurethane resin or a poly; carbonate resin containing an electronegative gas e.g. CCl 3 F under a pressure of about 2 atmospheres the resin being stress-graded by cylindrical metal inserts 17. The method of forming the bushing comprises first fixing a dome to the sleeve 11, in the position of shell 10A, acting as a temporary support for the metal inserts 17 which are disposed around the conductor 13, liquid foamed resin then being poured in to occupy the lower third of the enclosure and prevented from increasing in volume by introducing an electronegative gas at high pressure above the level of the resin, the resin being subsequently cured. The temporary support is then removed, the resin providing support for the metal inserts, the shell 10A replaced and the rest of the volume around the conductor filled with a second batch of foamed resin, which is then cured. Specification 838,824 is referred to.
Patent GB-1178136-A (GB)
Title: Flue Systems for Closed Heating Appliances
Inventor: EMERSON JAMES
IPC: F24C15/00
Filed: 1967-05-23
Abstract: 1,178,136. Chimneys. GAS COUNCIL. 17 July, 1968 [23 May, 1967], No. 23924/67. Heading F4J. A flue system for heating appliances 16 in a multi-storeyed building comprises an opentopped U-shaped duct 10, balanced flues 17 of the appliances opening into the riser limb 14 with fresh air flowing down the limb 13, the total flow cross-section of openings 18 in the centre wall 19 and the U-bend 15 being greater than that of either limb separately. In a modification (Fig. 2, not shown), the openings 18 are dispensed with and the cross-section of the single U-bend is at least equal to the total crosssection of both limbs. The U-bend has a height of between half and one storey.
Patent GB-615400-A (GB)
Title: Improvements in or relating to hydraulic jacks and like devices
IPC: F15B15/26
Filed: 1946-08-13
Abstract: 615,400. Hydraulic operating jacks. CONWAY, H. G. Aug. 13, 1946, No. 24068. [Class 69 (ii)] [Also in Group XXXII] A combined hydraulic jack and shock-absorber for aircraft undercarriages comprises a tubular body 11 divided in two by a diaphragm 12 into two chambers 13 and 14. The chamber 13 contains a piston 21 with a tubular piston rod 22 having a connecting eye 24. The interior of the rod 22 is divided by a piston 25 into an air chamber 26 and a liquid chamber connected through a disc valve 31 to the chamber 13. Chamber 14 contains a piston 15 connected to a tubular piston rod 16 in such a manner as to allow limited movement of the piston 15 thereon. A crown of claws 42 is fixed on the exterior of the body 11 and in the fully retracted position of the piston 15 engages the rim of a locking collar 43. A locking ring 57 having a shoulder 50 of larger diameter than the body 47, slidably mounted on the rod 16 and pressed away from the collar 43 by a spring 49, passes inside the crown 42 to lock it to the collar 43. A cross-head 55 projecting through and slidable in slots 56 in the rod 16 is fixed to the ring 57 and connected to a rod 52 which bears against the end 53 of the piston 15 to disengage the crown 42 when pressure is admitted on that side of the piston 15. Specifications 527,225 and 615,401 are referred to.
Patent GB-859462-A (GB)
Title: Improvements in or relating to handle grips for digging implements
IPC: A01B1/02
Filed: 1959-07-14
Abstract: 859,462. Spade handles. DUPPENGIESSER, K. A. July 14,1959, No. 24098 /59. Class 61. A spade handle comprises a wooden hand grip 1, Fig. 2, with reduced end projection 15 engaged in sheet metal limbs 2 and secured in part by the non-availing configuration of apertures 11, Fig. 1, in the limbs 2. In one example S-shaped limbs 2 are slotted at 3 and crossed over at a welded joint 10 to provide a longer socket 9 for the wooden stem 16. Pressed out projections 6 are provided for attachment screws 8 in the region of the apertures 11. In another example the hand grip 1, Fig. 3, is, mounted between the limbs 17 of a U-shaped holding member having a sleeve 16 engaging the top of the spade stem. A second U-shaped holding member 14 has a sleeve 9 engaging the stem and has end projections 18 engageable with slots 12 in the end of the hand grip 1. In another example the hand grip is attached between limbs 13, Fig. 5, of a support which is generally U-shaped but is waisted at 19 for attachment by rivet 21 through a sleeve 20 at the top of the spade stem.
Patent GB-261151-A (GB)
Title: Improvements in and relating to the cut-off mechanism of cigarette making machines
IPC: A24C5/30
Filed: 1925-09-29
Abstract: 261,151. Podmore, A. Sept. 29, 1925. Cigarette-making machines.-In cutoff mechanism for cigarette machines of the type comprising an eccentrically edged knife 4 rotating about an axis parallel to and fixed relatively to the axis of the cigarette rod, the knife 4 is clamped between discs 5 on a splined sleeve 8 mounted on a splined shaft 9 which rotates in fixed bearings parallel to the tube 10 through which the tobacco rod passes. The shaft 9 is driven from a main shaft through bevel gearing, a shaft 13, and pinions 11, 12. The sleeve 8 is reciprocated on the shaft 9 by means of rods 18 connected to eccentrics 19 on a shaft 20 driven by a bevel wheel 21 on the shaft 9, so that the cutter is moving with the cigarette rod when the put is effected. By suitably adjusting the speed of the shaft 9, two or more cutting blades may be employed. In a modification, the splines on the shaft 9 and sleeve S are curved in order to give an increased speed at the moment of cutting and a retardation while the knife is being sharpened by a member 24 on an oscillating arm 25.
Patent GB-687931-A (GB)
Title: Improvements in and relating to point-contact rectifiers
IPC: H01J5/42
Filed: 1949-09-21
Abstract: 687,931. Detectors. SYLVANIA ELECTRIC PRODUCTS, Inc. Sept. 21, 1949 [Sept. 22, 1948; Feb. 5, 1949], Nos. 24299/49 and 24300/49. Class 37. In an electrical point-contact rectifier device comprising a crystal 10 and a cat's whisker 12 enclosed in a hermetically sealed tubular vitreous envelope 22, metal sleeves 24, 26 are sealed by fusion into the ends of the envelope and have portions 27 which extend outwardly with respect to a longitudinal axis of the envelope and which abut the extreme ends of the envelope, conducting rods 14, 16 for supporting the crystal and cat's whisker in fixed, initial contact; extending through the sleeves and being sealed thereto. A waterproof cement or low temperature solder 28 seals the rods 14, 16, into the sleeves. Specification 616,065, [Group XL (c)], is referred to. The Specification as open to inspection under Sect. 91, comprises also an arrangement in which the sleeves are dispensed with and the conducting rods are sealed by fusion through the envelope wall. The rods are made long in proportion to their cross section to prevent damage to the crystal and cat's whisker by heating. This subject-matter does not appear in the Specification as accepted.
Patent GB-938014-A (GB)
Title: Improvements in or relating to receiving circuits
IPC: H03D7/18
Filed: 1960-07-12
Abstract: 938,014. Image-frequency rejection circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 12, 1960 [July 15, 1959], No. 24307/60. Class 40 (8). An aerial 1 is coupled to the base-emitter input circuit of a transistor 8 by means of a tuned transformer 10, 7 and a capacitance 4, the ratio of the turns of the transformer being equal to (within 20%) the ratio between capacitances 4 and 5, the latter being connected across the base bias resistor 9. The circuit is designed to suppress the image frequency of the incoming signal. The primary 3 of the transformer may include an aerial rod 10.
Patent GB-1042573-A (GB)
Title: Glass press mould indicating means
Inventor: CARMI ARIEH
IPC: C03B11/16
Filed: 1965-06-09
Abstract: In a glass press comprising a mould, a top ring and a plunger passing through the ring, the position of the gob relative to the mould is sensed by a plurality of sensing units either set into the bottom of the mould or into that part of the ring which will be engaged by the glass, the units being insulated from the electrically conductive material of the ring or mould so that engagement by the glass of any one of the units completes a circuit, the signals made thereby being used to display the position or to control the position of the gob relative to the mould.
Patent GB-318380-A (GB)
Title: Improvements in sound reproducing and recording means
IPC: H04R9/12
Filed: 1928-08-25
Abstract: 318,380. Aspden, R. L. Aug. 25, 1928. Phonographic recorders and reproducers; magnetic instruments.-In a combined gramophone sound box and pick-up or recorder, the stylus bar carries a coil which oscillates in a magnetic field. The stylus bar b, Fig. 1, has a ring k attached, supporting a coil l in air gaps of a pot magnet m, the leads from the coil to the amplifier being taken from terminals g, f. The ring k may be secured directly on the diaphragm d. The stylus bar b, Fig. 2, has a winding o, connected to terminals g, f, which oscillates in the field of the magnet p, secured to the rim of the sound box a. Acoustic recording may be made simultaneously with electric recording.
Patent GB-1219989-A (GB)
Title: Can ends
Inventor: UNSWORTH ALFRED KENNETH
IPC: C09J163/00
Filed: 1968-05-22
Abstract: 1,219,989. Can ends. A. K. UNSWORTH. 20 May, 1969 [22 May, 1968], No. 24535/68. Heading B8D. A hole in a sheet metal can end is closed by a piercable or tearable covering of polyamide material having a melting point of at least 155‹ C., said covering being bonded to the external can end face around the hole by an adhesive capable of withstanding the pressures and temperatures to which the can contents are subjected in sterilization processes. The covering is preferably formed of sheet material having a thickness of 0À05-1À0 mm. and is provided with a tear tag and is heat-sealed to the adhesive. The polyamide may be a linear lactam polymer, e.g. polylaurolactam, or an aliphatic diamine-dicarboxylic acid condensation product. The adhesive is preferably the reaction product obtained by heating an interpolymer of 80-95% by weight of vinyl chloride, 3-19% by weight of vinyl acetate and 0À5- 2% by weight of maleic anhydride with an epoxy resin, an epoxidized phenolic novolak or a phenolic resole or mixture thereof. The adhesive is preferably applied in liquid form to a metal sheet prior to cutting out the can end blanks and the hole or holes therein. Other suitable adhesives are referred to. The sheet metal of the can end may be aluminium, blackplate, tin plate or blackplate coated with another metal or metal admixed with a metal oxide.
Patent GB-1337064-A (GB)
Title: Photographic activator compositions
IPC: G03C5/305
Filed: 1971-04-19
Abstract: 1337064 Photographic processing EASTMAN KODAK CO 19 April 1971 [18 March 1970] 24557/71 Heading G2C A photographic alkaline lith activator composition which is substantially free from Br ions and contains a monoaldehyde bi-sulphite, an organic anti-foggant and cysteine optionally in the form of an acid addition salt. Preferably the actuator is used for developing silver halide lith materials containing a developing agent (e.g. hydroquinone or norbornane hydroquinone). Exemplified actuators contain Na formaldehyde bi-sulphite, Na 2 CO 3 , K 2 CO 3 , Na 3 PO 4 , 5-nitrobenzimidazole, 5-nitroindazole, L-cysteine and 2, 5-dithiobiurea.
Patent GB-974179-A (GB)
Title: Improvements in folders
IPC: B65D65/12
Filed: 1962-06-27
Abstract: 974,179. Folders; cartons. WILLIAM W. CLELAND Ltd., and A. A. BUCHMAN. June 27, 1963 [June 27, 1962], No. 24626/62. Headings B8C and B8P. A folder of paper, cardboard; or other flexible material has two outer panels 1, 2, Fig. 3, hinged at 14, and two narrower inner panels 3, 4 hinged together at 13 and to the outer panels at 15, 16, and provided with apertures 8 for receiving the protruding portions of a doublewalled strip 10 containing pills 9. The outer panel 1 may have an extension comprising a spine 5 and a tongue 6 which tucks into a slot in the panel 2. The folder is formed from a blank of flexible material, Fig. 1, scored along crease lines by steel rules, by folding panels 4 and 1 upon panels 3 and 2 respectively, and connecting them by a glue flap 7. The blank is then erected to tubular form and panels 3 and 4 pushed in to give the shape of Fig. 3. The strip 10 is then inserted, the spine 5 folded over the folder mouth, and the tongue 6, which has a tab 12 to ease its withdrawal, inserted into a slot 11 in the panel 2. The resilience of the material gives the panels a bowed shape so that gaps are left between the inner and outer panels and the former grip the strip firmly. This gripping may be intensified by cuts 17 in the crease line 13, and crease lines 18 between the apertures nearest the folder mouth.
Patent GB-743756-A (GB)
Title: A method of making a projection transparency of reference indicia for cathode-ray tubes
IPC: G03B21/00
Filed: 1953-09-07
Abstract: 743,756. Cathode-ray oscilloscopes. BENDIX AVIATION CORPORATION. Sept. 7, 1953 [Oct. 28, 1952], No. 24714/53. Class 37. [Also in Groups XIX and XX] A transparency, having recorded thereon an image of reference indicia adapted to be projected from a predetermined position 18 and through an optical path upon a screen 13 inside the transparent envelope 11 of an electron discharge device such that distortion of the indicia caused by refraction in the envelope is eliminated, is made by producing an equivalent pattern of the indicia on the screen 13 or on a surface corresponding to the screen and recording an image of the equivalent pattern of the indicia on the transparency from the predetermined position and through an optical path equivalent to the projecting optical path. The equivalent pattern of the indicia is drawn on or otherwise directly applied to the corresponding surface and is photographed by a camera from a position corresponding to that of the projector 16 in relation to the cathode ray tube 11. Alternatively the equivalent pattern of the indicia is projected on to the screen 13 from a plane slide by a projector placed in front of the tube on the centre line thereof, the necessary corrections to compensate for refraction and for projecting from a plane slide being mathematically or graphically performed. A colour filter 17 in the projector 17 will provide for a contrast between the index and electron images.
Patent GB-609314-A (GB)
Title: Improvements in or relating to tanks for liquids
IPC: B64D37/06
Filed: 1945-09-24
Abstract: 609,314. Tanks. BROADSMITH, N. E., BURGESS, D. G., GORDON, J. E., McMULLEN, P. L., PHILLIPS, L. N., QUINT, B. S. C., and WHITCUT, H. M. Sept. 24, 1945, No. 24755. [Class 69 (i)] [Also in Groups VIII, XVII and XXXIII] Tanks for the storage and transport of liquids, such as aircraft fuel tanks, comprise an envelope enclosing a fibrous filling of honeycomb structure, communication being provided between adjacent tubular elements of the honeycomb. The filling may be produced by coating sheets of paper &c. with spaced parallel strips of adhesive, stacking the sheets with the adhesive strips in adjacent sheets staggered, and drawing out the sheets to honeycomb form when the adhesive has set. The sheets may be initially perforated to provide intercommunication between tubular elements, and before or after formation of the honeycomb, the material is impregnated with a liquid-proofing agent such as a synthetic resin condensation product. Communication may be provided between all the tubular elements or the filling may be in sections of elements, such sections being sealed from one another. Each section. may have a separate outlet and inlet, or a common inlet may be provided, transfer ports being provided between the upper ends of adjacent tubes in adjacent sections. The envelope may be of metal, laminated fibrous material, &c., and may have a self-sealing outer layer. As shown, a tank within an aerofoil comprises a skin 1 of cured, resinated asbestos &c., and a honeycomb structure in two sections A, B, tubular elements of a section communicating by ports 3 at their lower ends and all the elements having ports 4 at their upper ends. Outlet pipes 5, 6 with perforated ends lead from the sections. Specification 609,313, [Group XXXIII], is referred to.
Patent GB-962635-A (GB)
Title: Electrical discharge machining apparatus and method
IPC: B23H7/18
Filed: 1960-07-15
Abstract: 962,635. Spark erosion. MATSON CO. Inc. July 16, 1960 [July 27, 1969], No. 24821/60. Heading B3V. [Also in Division G3] A spark erosion machining apparatus comprises means for developing a voltage which is proportional to the frequency of the spark discharges occurring between the electrode and workpiece, the voltage so developed being used to control the spacing between th electrode and workpiece to produce optimum machining operations. The power source for the apparatus includes an electronic discharge tube 50 which is made alternately conductive and non- conductive by means of pulse generator 70 so that an inductor 22 is charged when the tube 50 is conductive but during the non-conductive periods of the tube 50 the inductor discharges into the circuit containing the electrode 10 and the workpiece 12 to produce a spark therebetween. The frequency of the spark discharges is sensed by means which include a transformer 28, discriminator or counting means including clipper rectifiers 30, 32 and an integrating network 34 whereby a direct voltage is produced which is proportional to the spark discharge rate. This direct voltage is compared with a reference voltage 120 and the error is amplified at 40 and fed to a servomotor 16 which controls the position of the electrode 10 relative to the workpiece 12. Specification 962,636 is referred to.