baber/WOPTO huggingface dataset:
Patent GB-1384586-A (GB)
Title: Isolating switch construction and mechanism therefor
IPC: H01H31/06
Filed: 1972-04-17
Abstract: 1384586 Isolating switch WESTINGHOUSE ELECTRIC CORP 17 April 1972 [28 April 1971] 17615/72 Heading H1N During closing movement of the operating handle 9 of an isolating switch a toggle, formed by a contact carrying structure 35 pivotally connected at 66 to a cross-bar structure 68, is rotated anticlockwise about a fixed pivot 69 until a pad 86 on the contact carrying structure 35 co-operates with a fixed cam surface 88 and causes the toggle to straighten against the bias of a tension spring 70 so that movable contacts 36 carried by the structure 35 move upwards to engage fixed contacts 50. In the closed position the toggle structures 35, 68 are overcentre. On opening movement of the handle 9, the toggle joint 66 will initially move overcentre prior to contact separation. A spring biased pawl roller 98 co-operates with a cam plate 74 bolted to cross-bar structure 68 so that in the closed position of the contacts 36, 50 it biases the contacts closed, in the open position it biases the contacts open and after collapse of the toggle during opening it assists and may complete the movement of the toggle to the fully open position. A door interlock mechanism (Figs. 26-31 and 33-36, not shown) is provided for preventing closing of the isolating switch when the door of the cabinet in which it is mounted is open and preventing opening of the door when the switch is closed. Connected in series with the isolating switch is an electromagnetic contactor (not shown). An interlock arm 102 movable between upper and lower positions co-operates with the cam plate 74. The cam plate 74 prevents movement of the interlock arm 102 from its lower position to its upper position, which corresponds to the contactor closed position, during movement of the toggle 35, 38 between the contact closed and contact open positions. The cam plate 74 is itself locked against movement from the contact closed position by the interlock arm 102 when the arm 102 is in its' raised position and the contactor is closed. Thus the interlock prevents opening and closing of the isolating switch under load. An interlock switch 60 in the control circuit of the contactor is closed during closing movement of the isolator to prepare the control circuit for energization. Closure of a manual switch completes the control circuit to energize the contactor. On opening of the isolating switch, the interlock switch 60 is opened prior to separation of the isolator contacts 36, 50 so that the contactor is opened before the isolator. Overload protective relays and fuses are provided in each line of the isolator.
Patent GB-1170064-A (GB)
Title: Improvements in Electric Heating of Molten Metal
Inventor: AINSCOW PHILIP WATSON
IPC: H05B3/00
Filed: 1966-04-22
Abstract: 1,170,064. Resistance heating of molten metal. G. W. B. FURNACES Ltd. 24 April, 1967 [22 April, 1966], No. 17673/66. Heading H5H. A container 1 for molten metal, e.g. a launder or ladle, has downwardly extending throats 2, 3 closed by contact plugs 6, 7 and cooled by cooling tubes 4, 5 which cause solidification of the metal in the lowermost parts of the throats when the metal is heated by passing current through it by way of the contact plugs. The cooling tubes 4, 5 may be more widely spaced at the upper end of the throats than at the lower end. Contact plugs 6, 7 are connected to a bus-bar 8 in which current is induced by the primary winding of a transformer 9 or the secondary winding of transformer 10. In another arrangement three contact plugs positioned at the corners of an equilateral triangle are provided supplied with current from interconnecting bus-bars.
Patent GB-439432-A (GB)
Title: Improvements in, or relating to, electric fuses or fusible cut-outs
IPC: H01H85/055
Filed: 1934-06-15
Abstract: 439,432. Fusible cut-onts. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. June 15, 1934, No. 17710. [Class 38 (i)] A fuse element consists of three strips b of silver or similar high - melting point metal, joined in alignment by a small mass c of aluminium, and a larger mass d of cadmium. Other metals with medium and low melting points respectively may be used in place of the aluminium and cadmium.
Patent GB-821085-A (GB)
Title: Improvements in or relating to remote control means for gates or the like
Inventor: DESVAUX FRANCOIS
IPC: E05F15/02
Filed: 1957-06-04
Abstract: 821,085. Gate operating appliances. ETABLISSEMENTS SAXBY. June 4, 1957, No. 17711/57. Class 65(1) Remotely controlled operating means for gates, &c., comprises jacks 11, 12, Fig. 1, one for each gate, fed from a unidirectional pump 2 by way of a distributer 7 to raise the gates. A solenoid operated valve 14 in the distributer is held closed to trap the fluid in the jacks. When the circuit of the valve solenoid 17 is interrupted the valve 14 opens to release the fluid and the gates close under their own weight. 'As applied to railway crossing gates energization of the two-pole relay 24, Fig. 2; which is controlled manually, or by the passage of a train beyond the protected zone, is followed by energization of solenoid 17 and relay 20 controlling the pump driving motor 1. The gates then rise until the limit switches 21, 22 open at the end of this movement to stop the pump driving motor. the 'gates remaining open until solenoid 17 is de-energized by system failure or by the de-energization of relay 24 either manually or by the approach of a train. A by-pass valve 25 permits manual operation of the gates. while restricting devices in the shorter of the feed pipes, 9, 10, ensure that the gates close in the same time period.
Patent GB-353624-A (GB)
IPC: H01J9/04
Filed: 1930-06-07
Abstract: 353,624. Thermionic valves. LOEWE, S., 10, Wiesenweg, Steglitz, Berlin. June 7, 1930, No. 17717. Convention date, June 7, 1929. [Class 39 (i).] In a method of manufacturing highly emissive cathodes in valves with multiple electrode systems in which the cathodes are coated with emissive substances vaporized by eddy current heating, the coating substances for the several cathodes are arranged in a single system, heating of which vaporizes the substances for the several systems simultaneously. The cathodes are coated with a light metal such as barium produced from a barium reaction compound such as barium acetate or barium oxide and silicon. This compound is enclosed in pockets 5, 9, 10 in the anode 2 of the power stage in a multiple stage valve 1, having two amplification stages 6, 7, 8 and 11, 12, 13 and. a power stage 2, 3, 4. The pockets 5, 9, 10 are arranged so as to open on to the respective cathodes to be coated, i.e. 4, 8, 13 respectively, and on heating the electrodes of the power stage barium is vaporized and deposited on the cathodes of the several systems simultaneously. The reaction compound may be arranged on a carrier coheatable with one of the electrode systems. Cylindrical electrode systems may be used and the vapour passed axially through the systems as in Fig. 3. Metal sieves 17, forming electric screens arranged between the systems, permit the passage of vapour whilst providing efficient screening. A residue of unvaporized metal or compound may be left in the pockets whereby occasional overloading of the power stage or normal operation vaporizes the metal slowly to renew the barium coating on the cathodes.
Patent GB-1410756-A (GB)
Title: Transmission unit
IPC: F16H9/26
Filed: 1971-10-09
Abstract: 1410756 Variable-speed gear A PHILPOTT and R S FUHER 28 Sept 1972 [9 Oct 1971] 17729/75 Divided out of 1409661 Heading F2D An output shaft A1, driving apparatus for winding, at constant tension, rolls of paper, polythene or textile, is driven through a planet gear Z, Fig. 1, comprising primary and secondary planet sprockets T, Figs. 2 and 3, in a casing Z carried by an input shaft IS, and connected by drive chains RP respectively to a sprocket U fast on the output shaft A1 and a sprocket N freely mounted thereon, means being provided to control the speed of the sprocket N and hence output speed. Jockey tension sprockets S, M, O are provided. In Fig. 6 (not shown), the chain P is duplicated on the opposite side of the diameter, for symmetry, additional sprockets TN being provided and the jockeys M eliminated. The speed control comprises an hydraulic pump E driven by the control sprocket N through a one-way clutch X and chain W, pump output being controlled by parallel throttle valves H, I, J, as described in the main Specification 1,409,661.
Patent GB-598896-A (GB)
Title: Improvements in foot arch and like supports
IPC: A43B23/22
Filed: 1944-09-18
Abstract: 598,896. Foot-arch supports. SCHOLL MANUFACTURING CO., Ltd. (Scholl, W. M.). Sept. 18, 1944, No. 17791. [Class 17 (ii)] A foot-arch support consists of two parts, an upper member 1 of thermoplastic or thermosetting material shaped to the plantar surface of the foot and a lower arched member 2 of springy material, preferably metal, secured together. The lower member is strengthened by the longitudinal rib 7, and serves to restore the member 1 'to its original shape after the weight of the body has deformed it. The shape of a thermoplastic support may be altered to fit a particular foot by applying heat to the plastic in an adjusting device.
Patent GB-630746-A (GB)
Title: Improvements in or relating to aircraft wings or tail planes
IPC: B64C3/54
Filed: 1947-07-07
Abstract: 630,746. Variable area wings. MAKHONINE, J. July 7, 1947, No. 17935. Convention date, Jan. 17, 1946. [Class 4] In a variable-area wing or tail plane an apertured rib 20 is provided in the longitudinal plane of symmetry, the telescopic end sections 6, 7 being provided with offset spars 12, 13, 14, 15 which pass through the rib apertures and are so disposed that in the retracted condition the free ends of the spars associated with each end section next within the other section. As shown, the wing centre section 1 carries the telescopic end portions 6, 7 which are provided with ailerons or flaps 9, 10 telescoping into similar surfaces 2, 3 mounted on the centre section. The end sections are extended and retracted by the spars 12, 13, 14, 15, adjacent pairs of which engage guide rollers 31 in the central rib 20, and are provided with racks engaging pinions 33 operated by chain and sprocket gearing from the pilot's control station. The spaces between the spars may be used as fuel tanks, or for other storage purposes. Dihedral angle may be provided by making the surfaces of arcuate formation in the transverse plane, Fig. 3 (not shown).
Patent GB-1523999-A (GB)
Title: Optical multifunction control systems for motor vehicles
IPC: G02B6/35
Filed: 1977-04-29
Abstract: 1523999 Vehicle multifunction switch control GENERAL MOTORS CORP 29 April 1977 [26 May 1976] 17968/77 Heading G1A A vehicle multifunction switch control system has a receiver, as 46, 48, of light from a source 44, with, interposed a manually controlled selector 14 with different colour filters, each with a spectrum corresponding only to a given switching function, the receiver including an analyzer which is responsive to the spectra, and controls switch devices to energize respective switching functions. Light from lamp 44 is guided by reflecting surface 54 and lens 56 of element 50 to optical fibre bundle 20, which passes through the steering column to selector 14 on signal lever 12. From mirrors, as 76, 84, coated with coloured filter material and selectable by rotatable knob 70 or push button 80, it is reflected back down fibres 20 through a row of filters 48 to an array of photo-detectors 46, one or more of which are energized according to the filter selected. A logic circuit decodes the signal from the array and controls the switch actuators. In an alternative arrangement, red, blue and green L.E.D.'s are used as sources, instead of using filters 48.
Patent GB-244703-A (GB)
Title: Improvements in and relating to electric arc-welding apparatus
IPC: B23K9/10
Filed: 1925-07-14
Abstract: 244,703. Harms & Co. Dec. 20, 1924, [Convention date]. Supplying and controlling consuming devices. - In an arc welding system provided with an auxiliary resistance 6 arranged in a shunt circuit adapted to be made or broken alternately with the welding arc 4 by means of an electromagnet, the energization of the latter is dependent on the voltage across the arc. The arrangement may be such that the magnet closes the shunt circuit when the length of the are reaches a predetermined value. In Fig. 1 the contacts 7, 8 are adapted to be closed by a bridge piece 9 connected to a core 10 surrounded by a coil 11. In a modification the contacts are also adapted to be closed by a second electromagnet fitted in series with the arc as described in Specification 12724/10. In a further modification the core 10 is fitted with a second coil in series with the arc and is cperated against the action of a spring. In this arrangement the end of the coil 11 shown as connected to the lead 3 in Fig. 1 is connected to the shunt circuit at a point between the contact 8 and the resistance 6. In Fig. 4 the coil 11 and a series coil 14 are arranged on cores 10, 13 having a common bridge piece 20 adapted to engage contacts 7, 8 or 17, 18. A coil 16 short circuits the coil 13 when the latter raises the core to close contacts 17, 18. In a modification thereof, Fig. 5, the shunt circuit is provided with two pairs of contacts 7, 8 and 27, 28, the coils 11, 14 operating separate bridge pieces 26, 20. The core 10 is fixed and is associated with an armature 21 on a lever 22 pivoted at 23 and connected at the ends to a spring 24 and the bridge piece 25.
Patent GB-473443-A (GB)
Title: Improvements in or relating to heels for boots and shoes
IPC: A43B21/06
Filed: 1936-07-01
Abstract: 473,443. Heels for boots and shoes. WARD, F. July 1, 1936, No. 18206. [Class 17 (ii)] Split-lifts or rands in a built-up heel are avoided by moulding the top lift 4 with a concave upper face 6 corresponding to the heel seat of the shoe and by moulding or shaping the other lifts 2, 3 to conform to it. The lifts 2, 3 may be of similar or different materials, such as leather board or leather, and also of different thickness, and may be secured together by tacks, cement, adhesive or other means before being compressed and moulded. The top piece 4 is secured to the lifts 2, 3 by nails 10.
Patent GB-240961-A (GB)
Title: Improvements in and relating to paints or covering media and the manufacture thereof
IPC: C09D107/00
Filed: 1924-07-31
Abstract: 240,961. Hewitt, H. L., (Sefton, G.). July 31, 1924. Paints; varnishes; coating-compositions applied melted.-Covering-media are made by incorporating rubber with linseed oil at a comparatively high temperature. (1) Rubber is dissolved in raw linseed oil by beating to about 440‹ F. The heating source is withdrawn or reduced, and the fumes are ignited until a temperature (460‹ F.) somewhat above that at which heat treatment ceased is reached. The flames are extinguished and the mass is cooled. The solid or semi-solid product is suitable for coating hot surfaces, or may be thinned with raw linseed oil. (2) A mixture of linseed oil and rubber is maintained at 440‹ F. until the fumes assume a yellowish tint, when the temperature is reduced to about a half. The liquid is allowed to cool to about 100‹ F., when raw linseed oil is added to prevent solidification. When the mass has thoroughly cooled off equal quantities of raw and boiled linseed oil and a small quantity of turpentine are added, followed by the addition of one-eighth of a pint of amyl acetate to 100lbs. of the mixture. Colours such as red or white lead and zinc oxide in linseed oil, ochres or other oxides may be added to the compositions. The preferred proportions of rubber to oil are about 12 to 1.
Patent GB-698607-A (GB)
Title: Improvements in or relating to tubular containers for electrical condensers or otherapparatus
Inventor: SPORING PERCY ARCHIBALD
IPC: H01G2/12
Filed: 1952-07-21
Abstract: 698,607. Condensers. TELEGRAPH CONDENSER CO., Ltd. July 21, 1952, No. 18339/52. Addition to 584,801. Class 37. [Also in Group XVII] In a tubular container for an electrical condenser or other apparatus as set forth in the parent Specification the end closure bung or bungs is or are formed of polytetrafluorethylene, and the container itself may be of hard drawn brass or copper.
Patent GB-1069840-A (GB)
Title: Oil level indicator for internal combustion engines
IPC: G01F23/16
Filed: 1965-04-30
Abstract: 1,069,840. Indicating liquid level. L.F. CECIL. April 30, 1965, No. 18351/65. Heading G1H. An oil level indicator for indicating the oil level in an I. C. engine comprises a tube 9, extending at one end to a point near the bottom of an engine sump and at the other end to gauge 1 and has a spring-loaded button 6 arranged in the tube 9 so that when the button 6 is manually depressed the alteration in air pressure in the tube 9 actuates the gauge 1 in dependence of the level of oil in the engine sump above the end of the tube 9.
Patent GB-109186-A (GB)
Title: Improvements in or relating to Rotary Engines and Pumps.
Inventor: BULLARD HERBERT AUGUSTUS
IPC: F01C1/336
Filed: 1916-12-22
Abstract: 109,186. Bullard, H. A. Dec. 22, 1916. Fixed-abutment type; discharge and suction passages; governing and regulating.-Sliding- rocking vanes I are pivoted to a rotary carrier L and arranged to slide in rocking members N carried by a rotor G, which is driven synchronously with the carrier L by studs 0 mounted in the carrier end-plates M and engaging slots P in the rotor G. The carrier L is secured to the shaft F, and the rotor G rotates on a fixed eccentric V, which may be rotatably adjusted by hand or governor controlled worm gear X, W for the purpose of varying the cut-off or delivery pressure in the case of a gas engine or pump. An inlet D and outlet E are provided in the casing and ports U in the carrier L. A water jacket H with inlet R and outlet S may be provided. In a modification for use as a liquid-pump or engine, large openings are formed in the carrier L so as to provide ample clearance space for liquids containing grit &c.
Patent GB-976789-A (GB)
Title: Catalysts for cracking hydrocarbons
IPC: B01J21/14
Filed: 1963-05-09
Abstract: A process for the prepartion of a catalyst suitable for use in cracking hydrocarbons comprises (A) treating a solution of an alkali metal silicate (preferably Na2SiO3) in which the weight ratio of silica to alkali metal oxide is 3 : 1 to 3,4 : 1 with sufficient CO2 to produce a silica hydrogel containing substantially all the alkali metal as the alkali metal carbonate or bicarbonate, (B) treating the silica hydrogel with sufficient of an aluminium salt to react with substantially all p  the alkali metal carbonate and bicarbonate, (C) adding Mg(OH)2 or MgO in an amount corresponding to a magnesium content in the final catalyst of 1-8% by weight, (D) ageing the resulting slurry, (E) separating the solids from the aged slurry, and (F) treating the separated solids to remove substantially all the alkali metal therefrom.  The aluminium salt used in step (B) is usually Al2(SO4)3.  Step (F) usually involves washing with (NH4)2SO4 solution.  Examples are given which disclose that catalysts as prepared above have surface areas greater than 400 sq.m./gm.
Patent GB-495492-A (GB)
Title: Improvements in or connected with roof-supporting means for use in mining, quarrying and like operations
IPC: E21D17/086
Filed: 1937-07-05
Abstract: 495,492. Mine-roof supports. MAVOR & COULSON, Ltd., and MAVOR, J. B. July 5, 1937, No. 18593. [Class 20 (ii)] A beam B for use in mining, quarrying, and the like, by insertion into a cut or slot-way 2, e.g. in a coal-face A, Fig. 1, carries means whereby its inner end can be tightened against the upper and lower faces of the cut, retained in that position, and slackened for withdrawal of the beam. The roof cut 2, into which the beam B is inserted, extends further inwardly than a floor cut 1 as described in Specification 494,186. The inner end of the beam shown in Fig. 2 is provided with a shoe 4 connected thereto by toggles 5 which are operated by a rack-and-lever device 7, 8, through a rod 6, to wedge the beam in position. The shoe may, alternatively, be connected with the beam by a pair of parallel links so as to be controlled by a lever-controlled push rod. The beam shown in Fig. 3 is provided with a fixed wedge 10 which is in dovetail-sliding engagement with a wedge 11 ; when the beam is inserted into the cut, wedging occurs after the wedge 11 reaches the back of the cut. An alternative wedging device comprises a plate 14, Fig. 5, which is pivoted to the beam and has two arcuate wedges 15 corresponding to two arcuate wedges 13 on the underside of the beam This beam is inserted into the cut in an askew position and is thereafter swung, either by direct action or ratchet device, into mid-position to tighten it in the cut. The underside of the plate 14 is roughened to hinder it from turning when the beam is swung. The beam shown in Fig. 7 has a screw-jack arranged at its inner end comprising a plate 16, a screw 17, a worm-wheel 18 forming a nut on the screw 17, a worm 19, and an outwardly-extending rod 20. The wedging mechanism is also stated to comprise a combination of two or more devices of toggle, wedge, screw, cam, or lever character. The Provisional Specification describes also wedging means of screw-jack type adapted to operate upper and lower hinged jaws.
Patent GB-1040391-A (GB)
Title: Improvements in or relating to inlet ports of internal combustion engines
IPC: F01L3/06
Filed: 1963-05-10
Abstract: 1,040,391. Cylinder intake passages. TATRA NARODNI PODNIK. May 10, 1963 [May 23, 1962], No. 18679/63. Heading F1B. An inlet duct has a transverse cross section Fig. 2a (not shown) which is larger in area on the side of the duct axis 7 facing the cylinder wall than on the opposite side, the duct ending in a lip 5 projecting over the valve seat opening, which lip decreases symmetrically in width on both sides of a vertical plane 6 which is at an angle to the axis 7, the part of the port upper wall lying above the lip 5 also being symmetrical about the plane 6. The duct crosssection, Fig. 2a, is formed by a false ellipse, the upper wall being a curve of radius R drawn from a centre on the vertical plane 7a through the duct axis 7 whilst the lower wall is a curve of radius R<SP>1</SP> drawn from a centre on a vertical plane 12 offset from the axis 7.
Patent GB-530560-A (GB)
Title: Improvements in or relating to apparatus for the electrical precipitation of suspended particles from gases
IPC: B03C3/51
Filed: 1939-06-27
Abstract: 530,560. Electrostatic precipitation. LODGECOTTRELL, Ltd., and LODGE, L. June 27, 1939, No. 18742. [Class 39 (i)] The collecting electrodes in apparatus for the electrical precipitation of particles suspended in gases, consists of pairs of plates 1 with flared upper edges 1a to form catch pockets for the deposited particles and baffle plates 3 disposed at intervals transversely of the pockets. The plates 1 are suspended by rods 2 passing through the baffles, and are steadied at their lower ends by wedges 6 and pins 7 passing partly into the spaces between the plates and outside thereof. The baffles are preferably of channel section with the flanges extending in the direction of flow of the gas, and are secured to the supporting bar to which the usual jarring movement is imparted. Preferably the bottom ends of the baffles extend below the bottom edge of the collecting plates into the collecting hopper. The discharge electrodes may consist of tubular rods with projecting points, or of thin metal strips on edge, and are preferably rounded or provided with protecting sleeves where they pass in the neighbourhood of a projecting lip of the catch pockets in order to prevent discharge taking place.