baber/WOPTO huggingface dataset:
Patent GB-501843-A (GB)
Title: Improvements in or relating to directional aerial systems
IPC: H01Q3/26
Filed: 1937-06-26
Abstract: 501,843. Directive wireless systems; transformers. CORK, E. C., and PAWSEY, J. L. June 26, 1937, No. 17819. [Class 40 (v)] [Also in Group XXXV] A directional aerial system comprises two aerials each connected by a feeder to a common channel consisting of transmitting or receiving apparatus. The aerials are spaced apart by a distance large compared with the signalling wavelength and the energy to or from one or both the aerials is passed through an amplitude control arrangement and one or both the feeders includes a phase adjuster so that the angular position of the lobes of the directional diagram may be varied while the depth of the troughs between the lobes is variable by the amplitude control. In a wireless receiver the phase adjusting means are preferably so operated that a source of interference lies in the direction of minimum reception. Phase adjustment is preferably effected by inserting selected lengths of conductor 11, 12, 13, Fig. 3, in one of the feeders while fine phase adjustment is effected by a tuned circuit 14 at a point A one quarter wavelength removed from the point B at which the receiver is connected. Amplitude control is effected by variable resistance 15, a change-over switch enabling the resistance to be placed in the line having the stronger signal. In a modification, Fig. 4 (not shown), fine phase adjustment is effected by gang controlled tuned'circuits one quarter wavelength apart, one having a resistance in series equal to the characteristic impedance of the feeder. In this arrangement amplitude adjustment is similarly effected by ganged spaced resistances one of which is in series with a resistance equal to the characteristic impedance of the line and the coarse phase adjustment is effected by connecting the receiver to a tapping switch associated with a conductor one half wavelength long which terminates the lines. In other arrangements a variable length of feeder of length equal to one wavelength and terminated by a.resistance may be included in one of the lines for coarse phase adjustment, Fig. 5 (not shown) and a variable coupling transformer may be used to adjust amplitude, Fig. 6 (not shown). In the latter arrangement the ratio of the mutual inductances may be varied by switching in more or less turns on the secondary coil. Fig. 7 shows a construction of variable coupling transformer in which the primary coils L1, L2 are formed by a cruciform copper sheet bent to form a box-like structure with the coupling coil L3 of strip copper on a hollow shaft. Alternatively amplitude control may be effected by a tapped half wavelength line, Fig. 9, with the mid-point connected to the common channel T. Specification 433,843 is referred to. Reference has been directed by the Comptroller to Specification 492,455.
Patent GB-849342-A (GB)
Title: Hydro-pneumatic suspension device
IPC: F16F9/092
Filed: 1957-06-05
Abstract: 849,342. Hydro-pneumatic shock absorbers. MACKERLE, J. June 5, 1957 [June 5, 1956], No. 17887/57. Class 108(3). A hydro-pneumatic shock absorber comprises a differential piston 2 operating in a liquid filled cylinder 1 with damping action resulting from valve controlled ports 11, the liquid in the cylinder 1 being separated from air in a chamber 9 by means of a resilient cylindrical diaphragm 8; a liquid reservoir 15, a replenishing pump comprising a cylindrical bore 18a, a pump piston 18, by-pass ports 19, 20, a pressure valve 22, and an inlet valve 21. In operation, on compression movement of the piston 2, liquid is forced from the cylinder 1 through a port 6 into an annular chamber defined by a sleeve 7. The liquid passes through ports 10a in the sleeve 7 into a further annular chamber bounded by the diaphragm 8. On rebound, air pressure in the chamber 9 acts on the diaphragm 8 to force liquid back into the cylinder 1. The diaphragm is prevented from being forced through the ports 10a by resilient tongues 10. On an increase in static load, the outlet of the port 19 to the pump cylinder 18a is cut-off by the piston 18. Further oscillatory movements of the piston 2 together with the pump pistons 18, cause the latter to draw in fresh liquid from the reservoir via the valve 21 and an external conduit 19a. On the compression strokes, this is forced through the pressure valve 22 and a port 22a into the cylinder 1. On a decrease in static load, the pump piston 18 eventually uncovers the port 20 which connects liquid in the cylinder 1 with the interior of the pump cylinder 18a. On inward movements of the pump piston 18 this liquid is then forced back through the port 19 and conduit 19a to the reservoir 15. A channel 12 disposed between high pressure and low pressure seals for the piston 2, is connected with the reservoir 15.
Patent GB-674043-A (GB)
Title: Improvements in protective system for three-phase/single-phase machines
IPC: B23K11/24
Filed: 1948-07-02
Abstract: 674,043. Converting. SCIAKY, D. July 2, 1948, No. 17902/48. Classes 38(ii) and 38 (iv). A resistance welding load is supplied with current impulses in alternating directions from a polyphase source through two groups of valves, one from each group being connected in each phase, there being timing sequence and control means for firing the valves, with an associated protective circuit which prevents the firing of one group of valves before the current has died away in the other group, which produced the last current impulse. Welding load 10 is supplied through a transformer 18 with single - phase current or unidirectional pulses from a three-phase source 23 through ignitrons connected in anti-parallel pairs 32, 34; 37, 39; 44, 46; one pair to each phase. Ignitrons 32, 37, 44 are controlled by thyratrons 51 and ignitrons 34, 39, 46 by thyratrons 52. The thyratron grids are energized from timing sequence and control grid mechanism 58 in such order that a succession of alternately-reversing current impulses passes through the primary winding of transformer 18. A voltage developed across parallel connected resistance 67 and capacitor 68 through transformer 61 and rectifiers 65, 65 from the secondary (as shown) or primary windings of transformer 18 when any current impulse is flowing, is fed to the mechanism 58, which operates to prevent the next firing of the ignitrons until the current impulse has died away. In a modification the voltage applied to mechanism 58 is obtained from a battery by closure of a relay energized from transformer 18, Fig. 5 (not shown). Alternatively this voltage may be obtained through an amplifier and rectifier from the ends of a resistance connected in series with transformer 18, Fig. 6 (not shown). In a further modification, there is only one ignitron per phase, but the current impulses they pass are switched alternately to one end and the other of the primary winding of transformer 18 by two switching ignitrons, the return path being from a centre tap on this winding. The main ignitrons are operated by a relay circuit such as is shown in Fig. 3 of Specification 674,042, but coil D is now connected in series with the contacts of the relay in the return path across the auxiliary supply to the relay circuit, so that the next impulse cannot be generated until this relay opens, when the current impulse through transformer 18 has reached zero, Fig. 7 (not shown). This circuit may be slightly modified by using four switching ignitrons to reverse the current after each impulse through the whole of the primary winding of transformer 18 which now has no centre tap, Fig. 8 (not shown).
Patent GB-472811-A (GB)
Title: Improvements relating to fuel injection pumps for internal combustion engines
IPC: F02D1/00
Filed: 1937-06-28
Abstract: 472,811. Regulators for fuel-injection pumps. DECKEL, F., (trading as DECKEL, PRAZISIONSMECHANIK UND MASCHINENBAU, F.). June 28, 1937, No. 17961. Convention date, July 13, 1936. [Class 57] The regulating rack 3 of a fuel-injection pump is secured to a disc 4 which has attached to it by a spring clip 5 a collapsable bellows 6. The other end of the bellows is secured by a spring clip 7 to a ring 8 gripped between a cover 9 and a flange on the casing 2. The interior of the bellows is connected by a pipe 10 to the air induction pipe of the engine and the plate 4 is loaded by a spring 11. The bellows is composed of leather or other non- metallic material and when extended forms a smooth cylinder. To prevent undue buckling a rigid ring 12 is fixed inside it or several such rings may be provided or a wire helix or the spring 11 may be enlarged to contact with the wall of the bellows.
Patent GB-1085240-A (GB)
Title: Improvements in or relating to the drawing and bulking of synthetic polymer yarns
Inventor: JENKINS DONALD GLYN
IPC: D02J1/22
Filed: 1964-06-03
Abstract: In a continuous combined drawing and bulking process, two similar undrawn synthetic polymer e.g. nylon, multifilament, twisted or twistless yarns are drawn (with a stretch ratio of at least 2:1) by pairs of rollers in one or two stages in at least the second of which the stretch in the yarns is concentrated at a non-rotatable, optionally heated, snubbing pin.  The drawn yarns are immediately and directly forwarded, with a mechanical overfeed not exceeding 20% and heating (as by heated draw rolls) to ensure or assist in the yarn contraction or relaxation, through separate oppositely rotating frictional false-twisting tubes, and are set or allowed to set by additional and/or residual heat.  An air jet may act on low tension spans of yarns between supply package and feed rolls of a drawing mechanism and between the final draw rollers and the false-twisting tubes and/or the yarn downstream of the latter to intermingle the filaments and/or to cool them before winding-up the yarns e.g. with a slight overfeed and/or a low plying twist to form a balanced-torque composite yarn.
Patent GB-460659-A (GB)
Title: Improvements relating to the polymerisation of gaseous olefines
IPC: C07C2/18
Filed: 1935-06-26
Abstract: Normally gaseous olefines are polymerized for the production of a motor spirit by means of a catalyst consisting of or containing cadmium dihydrogen orthophosphate, which is maintained in a substantially dry condition during the process.  The catalyst may be made by combining 1 mol. of cadmium orthophosphate with 2--4 mols. of orthophosphoric acid, the mixture being dried and heated at a temperature not substantially above 100 DEG  C. and broken up. The hardness may be increased by mixing the powdered catalyst with a binding-agent such as lubricating-oil acid tar and/or graphite, and pelleting and finally heating to 300 DEG  C.  Alternatively, the catalyst may be made from a mixture of cadmium and copper orthophosphates in equivalent proportions.  In the polymerizing process the olefines may be mixed with up to 10 per cent of steam. When spent, the catalyst may be regenerated by heating in a current of nitrogen or flue gas at 300 DEG  C.ALSO:A catalyst for polymerizing olefines consists of or contains cadmium dihydrogen phosphate.  It may be made by heating to 100 DEG  C. 1 mol. of cadmium orthophosphate and 2-4 mols. of orthophosphoric acid and breaking up the product.  The hardness may be increased by mixing the powdered catalyst with a binding-agent such as lubricating-oil acid tar and/or graphite and pelleting, and finally heating to 300 DEG  C. Alternatively the catalyst may be made from a mixture of cadmium and copper orthophosphates in equivalent proportions.  When spent, the catalyst may be regenerated by heating in a current of nitrogen or flue gas to 300 DEG  C.
Patent GB-934278-A (GB)
Title: Improvements in aerials arrays
Inventor: WHITBREAD CYRIL FRANK
IPC: H01Q21/10
Filed: 1961-05-19
Abstract: 934,278. Aerials. BELLING & LEE Ltd. June 1, 1962 [May 19, 1961], No. 18303/61. Class 40 (7). In an aerial array (Fig. 1) comprising a plurality of aligned and spaced apart quarterwavelength sections 1-5 (each section consisting of a brass rod 6 surrounded by a brass tube 7, the rods 6 and tubes 7 of adjacent sections being cross-connected by brass members 9 and 10, as shown), the space between each brass rod 6 and its surrounding tube 7 is arranged to have a dielectric constant equal to four, thus matching the impedance of the array to the characteristic impedance of a coaxial heater (not shown) connected to the bottom section 5. The whole array is enclosed in a rigid tube 12 (Fig. 2) and the inner conductor 15 of the lowest section is connected to a spider of conducting rods (Fig. 3, not shown) which acts as a ground plane. The space between the inner conductor 15 (Fig. 2) and the outer sleeve 13 may be filled with a material of dielectric constant=4, such as the ceramic tube 14 or with a liquid (not shown) such as trichlorobenzene or alternatively the filling may be of more than one material, the amounts of which are selected to give the required dielectric constant. The array is suitable for use on road vehicles.
Patent GB-222978-A (GB)
Title: Process and apparatus for effecting economy in fuel consumption in the operation of internal combustion engines
IPC: F02M25/06
Filed: 1923-07-16
Abstract: 222,978. Indlekofer, A. July 16, 1923. Spray carburettors.-Economy in fuel consumption is effected by drawing hot air through the crank case to mix with and vaporize particles of lubricating oil therein, the resulting mixture of hot air and lubricating oil vapour being led through a separating device either direct to the cylinder or to the carburettor outlet pipe. Hot air enters the crank case D through a pipe C from a casing B surrounding the exhaust pipe A<1>. The outlet pipe e has an enlargement or chamber e<1> for separating and collecting heavy oil particles and the mixture then passes through a control device f to an inlet valve c. The carburettor delivers mixture through the pipe r. In a modification, the control device f delivers into the pipe r. A cock h may admit petrol for cleaning the valve guide and benzine for starting the engine.
Patent GB-692798-A (GB)
Title: Improvements in and apparatus for the withdrawal of liquids from mixtures of solids and liquids which are from pasty to viscous in consistency
IPC: B01D1/18
Filed: 1950-07-24
Abstract: 692,798. Drying apparatus. BADISCHE ANILIN- & SODA-FABRIK. July 24, 1950 [July 30, 1949], No. 18398/50. Class 34 (ii) In apparatus for drying pasty materials the paste is conveyed to an outlet B in front of which is a rotating roller C having pins D which propel the paste into the drying chambei F in atomised form. The particles are held in suspension in a stream G of hot air, the lighter dry particles being carried into a collecting vessel N while the heavier particles fall into a funnel shaped bottom J where their drying is completed by an auxiliary air stream K and they are withdrawn by a conveyer L. The pins D may contact the edge of the outlet B so that they are retarded and then spring forward with increased acceleration to propel the paste, and the outlet B is partly surrounded by a nozzle W with air inlet X. In a modification (Fig. 2) the material is fed from a vibrating device Q to a roller C at the top of a chamber F and having pins D and the outlet B of the device Q is partly surrounded by a nozzle W having an air inlet X. Hot air R is introduced tangentially at the top of the chamber F and exhaust air withdrawn at M. The dried product collects at the bottom of the chamber whence it is conveyed to a shaft T by a scavenger S.
Patent GB-1067263-A (GB)
Title: Improvements in or relating to positioning mechanisms for positioning movable members
IPC: G05D3/14
Filed: 1964-05-04
Abstract: 1,067,263. Machine tool details. WARNER & SWASEY CO. May 4, 1964 [May 3, 1963], No. 18402/64. Heading B3B. A system for positioning a movable member 10 comprises drive means for moving the member through coarse positions to a position at a predetermined position from a selected coarse position, a measuring member 50 connectible to and movable by said movable member when the latter is at the preselected coarse position, first control means actuatable as said movable member arrives at said preselected coarse position to effect connection of said measuring member and said movable member to provide for movement of said measuring member by said movable member, and second control means 70 responsive to a preselectable movement of said measuring member by said movable member from said coarse position to stop the operation of said drive means. As the table 10 is advanced by an electric motor, pegs 15 indicating the coarse positions rotate a wheel 16 and gears 18, 19 to advance a potentiometer 20 forming part of a coarse positioning bridge. The bridge is set by relays which cause short-circuiting of various sections of a resistance. Thyratron control circuits cause rotation of the table-driving motor in one or other direction according to the bridge unbalance. - When the specified coarse position is reached, a pawl 50 is projected upwardly from a carrier 51. It engages between pegs 15 and the carrier is thereby moved along a rod 53 on a frame 54 adjustable by screw-and-nut means 162. Movement of the carrier rotates a ball-type screw which drives gearing 86, 72a, 72 to rotate the switch arm 70, Fig. 3 (not shown). The arm engages one or other of two contacts 74a, 74b according to its direction of rotation, the contacts having been set by a servomotor or a hand-knob 77 in conjunction with a scale to determine the point at which the table-driving motor is stopped. After a table setting operation, the carrier 51 is reset in a " home " position at one end of its travel by a motor 80 driving through a clutch 83. Projection of the pawl is effected by a solenoid 100 acting through a lever 101 and a plate 102. Should overtravel of the carrier 51 occur, a safety device is operated by a block 110 or 111 which rocks a lever 106 to withdraw the pawl. The pawl solenoid is controlled by a switch 120 or 120<SP>1</SP> according to the direction of movement, the switch being actuated by a cam 122 or 122<SP>1</SP> rendered effective by an indication from the coarse potentiometer 20 that a selected coarse position has been obtained. When a coarse position is reached, the rate of table movement is reduced. It may be reduced further by providing extra contacts associated with the arm 70. In a modification, the switch arm 70 is rotated in a direction dependent on the direction of positioning.
Patent GB-381172-A (GB)
Title: An improved metal strip and articles made therefrom
IPC: E04C2/42
Filed: 1931-06-26
Abstract: 381,172. Metallic fabrics. PIERSON, S. A., 414, Edgware Road, London. June 26, 1931, No. 18533. [Class 45.] Metal strip is embossed at intervals a, flat spaces b separating the embossments so that the strips may be joined together in diagonal fashion to form fencing or guards. The embossments may be made with sharp edges, Fig. 2, or with flat edges, Fig. 4.
Patent GB-1014205-A (GB)
Title: Fluidisation reactor
Inventor: HAEBERLE MANFRED
IPC: B01J8/34
Filed: 1964-05-05
Abstract: Ethylene may be polymerized by passing into a fluidized bed of granular catalyst consisting of 2% chromium on a silica-alumina carrier, the bed being maintained at 105 DEG  C. and 35 atm. to give a product having a molecular weight of 400,000.  The reactor comprises distributer plates of special form (see Division B1).
Patent GB-275407-A (GB)
Title: Improvements relating to automobile horns and ventilating cowls
IPC: G10K9/22
Filed: 1926-07-26
Abstract: 275,407. Beken, E. G., (trading as Gisbornes). July 26, 1926. Ventilators. - A universal mounting for a warning horn or ventilating cowl on the side or panel of a motor vehicle comprises a tubular portion 3 connected with the narrow end 2 of the exterior part of the horn &c. and passing through a hole in the side or panel 14 and carrying spherical sockets 7, 8 adapted to engage clamping members 9, 10. On the inner end of the portion 3 is a hollow boss 15 and a clamping nut 18.
Patent GB-1045701-A (GB)
Title: Improvements in carburettors
IPC: F02M17/36
Filed: 1963-05-10
Abstract: 1,045,701. Spray carburetters. SOC DU CARBURATEUR ZENITH. May 10, 1963 [May 17, 1962], No. 18554/63. Heading F1B. A carburetter comprises a main body part 1, Fig. 5, containing the float chamber, a cover member 5, and a separate carburation block 9 containing all the feed passages for forming the normal running mixture and seated in the body 1 on a horizontal seating 9b. In Fig. 5 the block 9 fits within the part 1 and is circulated therefrom by a gasket 10. The block 9 is secured to the part 5 by a hollow bolt 31a forming the seat for the float valve 13, the floats being pivoted on the block 9. The main jet 16, slow running jet 18, nozzle 19, air bleed orifices 22, 23 and mixing venturi 19 are all formed in the block 9.
Patent GB-166887-A (GB)
Title: Manufacture of artificial nitrogenous fertilizers
IPC: C05C7/00
Filed: 1921-07-08
Abstract: Calcium sulphate is mixed with carbon and if desired a catalyst such as halogen compounds oxides, carbonates or oxysalts of alkali, alkaline earth or earth metals and heated to 1000-1300 DEG  C. with nitrogen or gases containing nitrogen.  The materials may be briquetted.  Sulphur and carbon disulphide are evolved and are collected.  The Specification as open to inspection under Sect. 91 (3) (a) includes the use of alkaline earth sulphates, strontium sulphate being mentioned.  In the case of strontium residues of sugar manufacture, a catalyst is usually unnecessary.  This subject-matter does not appear in the Specification as accepted.
Patent GB-201547-A (GB)
Title: Improvements in double reduction gearing
IPC: B63H23/32
Filed: 1923-07-18
Abstract: 201,547. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Herr, H. T.). July 28, 1922, [Convention date]. Toothed gearing.-In double reduction gearing of the double helical type for marine propulsion &c., the driving and driven shafts 10, 13<1> are in alignment and are geared together by two or more sets of intermediate gearing 18, 21, each intermediate wheel being separately mounted on floating frames 23, 24. Each gear 18 and pinion 21 may be hollow and connected by an internal flexible shaft 20 secured by sliding couplings 25<1> to one or both wheels to allow free equalization of stress throughout the gearing.
Patent GB-263418-A (GB)
Title: Improvements in side screens for vehicles
IPC: B60J1/08
Filed: 1926-07-26
Abstract: 263,418. Humber, Ltd., Cole, J. A., Oliver, C. S., and Buckingham, F. J. July 26, 1926. Wind and like screens. - In side screens for vehicles of the kind which are pivoted at the lower part and when not in use .can be swung into a recess in the side or door of the vehicle, two separte screen portions 2, 3, pivoted at 9 and 8 respectively, are arranged one at the rear of the other and have an operative link connection 15 between them so that they move together in the same direction, and are adapted, when raised, to meet at their edges forming a continuous screen, and when lowered to lie face-to-face in a recess 10 between an internal and external panel of the vehicle. The link 15 and arm 13 have a pin-andslot connection under the influence of a spring 20 so that the screen 2 can be moved independently of the screen 3 to clear the door 18. A clip 16 on the screen 3 secures the upper ends of the screens together in the raised position and a catch 17 on the top rail body locks the screens in their operative position. The recess 10 may be closed by a narrow lid hinged along the vehicle rail.
Patent GB-238690-A (GB)
Title: Process of producing glass and porcelain ware
IPC: C04B33/02
Filed: 1924-08-05
Abstract: 238,690. Ekert, F. M. Aug. 5, 1924. Pottery materials. - A process of producing porcelain and vitreous ware consists in adding to silica or aluminium silicate, or both, a flux consisting of aluminium fluoride or siliconaluminium fluoride. To produce fare of a more stone-like character , magnesium fluoride and silicon-magnesium fluoride are used.