baber/WOPTO huggingface dataset:
Patent GB-657025-A (GB)
Title: Improvements in or relating to the coating of iron, steel, copper and copper alloy with lead
Inventor: BAILEY GORDON LENNOX JAMES
IPC: C23C2/10
Filed: 1947-11-10
Abstract: Continuous, adherent lead coatings are formed on surfaces of iron, steel, copper or their alloys by dipping the solid metal into liquid lead or lead alloys containing 0.01-0.5 per cent of nickel.  Lead alloys containing tellurium or copper or both may be used.  Prior to coating, iron or steel may be pickled in hot 10 per cent sulphuric acid, without any inhibitor; or roughened, e.g. by scratch brushing, and then pickled in inhibited acid; copper surfaces may be roughened in acidified solutions of ferric sulphate or ferric chloride.  After pickling and washing the metal may be fluxed in aqueous zinc chloride or zinc ammonium chloride, in hydrogen gas or in an aqueous solution of equal parts of lithium, potassium and ammonium chlorides; or molten zinc ammonium chloride may be floated on the lead bath.  The coating may serve as a lubricant during drawing or may be built up by melting a lead rod thereon, or articles may be simultaneously coated and soldered.  Specification 226,774, [Class 82(i)], is referred to.
Patent GB-924681-A (GB)
Title: Improvements relating to self-regulating reciprocating fuel injection pumps for internal combustion engines
IPC: F02M59/32
Filed: 1959-09-02
Abstract: 924,681. Fuel injection pumps. P. E. BESSIERE. Sept. 2, 1959 [April 6, 1959], No. 29902/59. Class 102(1). A fuel injection pump comprises a piston 1 having a constant stroke and actuated in accordance with the speed of the engine to draw fuel through an inlet 3 and deliver it through an outlet 4. The closing of the inlet 3 is controlled by a first regulating member 6 which is actuated hydraulically against a spring 11 by an auxilary piston 20 forming part of the piston 1. The piston 20 delivers past a non-return valve 28 to actuate the member 6 which first closes the inlet 3 and later opens the inlet 3 by a groove 17 to end the injection. The return stroke of the member 6 under the spring 11 is controlled by a throttled passage 15 such that after a predetermined speed of the engine is reached the member 6 does not complete its return stroke to a stop 13 before being actuated again by the auxiliary piston 20 thus causing an advance in the timing of injection without varying the quantity of fuel delivered. A second member 7 actuated by an auxiliary piston 21 in a manner similar to the member 6 controls the quantity of fuel delivered, this member opening a bypass passage 8 as the speed increases above a predetermined value due to its reduced return stroke caused by an adjustable throttle 16. The member 6 may be provided with recess 35, 36 to vary the timing of the end of injection bv rotation of this member. The movement of the member 6 against the spring 11 may be varied by the provision of an adjustable throttle 43 which allows escape of liquid delivered by the piston 20. In a modified form a single auxilary, piston may actuate both members 6 and 7, liquid being delivered to actuate the member 7 after the member 6 has moved to close the inlet 3. In a further modification, the piston 6 also serves the function of the pump piston, delivering fuel to the outlet. In this case the piston 1 then becomes equivalent to the auxiliary piston 20,
Patent GB-617575-A (GB)
Title: Improvements in collapsible boxes for display purposes
IPC: B65D5/52
Filed: 1946-10-07
Abstract: 617,575. Boxes. ROBINSON, Ltd., E. S. & A., ROBINSON, P. N., and ELLIS, H. G. Oct, 7, 1946. No. 29920 [Class 18] A display box has a bottom closing flap D<1> formed with tongues D<4> slidably engaging longitudinal slits E in adjacent closing flaps A<1>, B<1>, whereby the flap D<1> may be slid from the bottom closing position to form a stand for tilting the box. The box is formed from two blanks, one, comprising the rear wall D, lid D<2> and closing flap D<1>, being secured by staples to walls A, B of the other blank. In closing the box bottom, flaps A<1>, B<1> are folded on a flap C<1>, extending from the front wall C of the box, and are locked by tongues G engaging slits F. The tongues D4 of the flap D<1> are engaged in the slits E to complete the closure. The flap D<1> has transverse scoring causing it to form a wedge-shaped stand when the tongues D4 are slid rearwards. The lid D2 may have a cut-out D7 erected for display purposes by folding the lid on a medial score line.
Patent GB-1019399-A (GB)
Title: Vessel storage device
IPC: B65G47/68
Filed: 1963-07-29
Abstract: 1,019,399. Endless conveyers. HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. July 29, 1963 [Sept. 12, 1962], No.29949/63. Heading B8A. When bottles are being fed from a rotary conveyer 2 and endless belt 4 to a further machine (not shown) an interruption in the flow is dealt with by the provision of a table 5 and a flap 6 which operates a switch to stop the conveyer 2.
Patent GB-617584-A (GB)
Title: Ejector for forging presses and the like
IPC: B30B15/32
Filed: 1946-10-08
Abstract: 617,584. Forging. LOEWY ENGINEERING CO., Ltd., and SALTER, F. S. Oct. 8, 1946, No. 29959. [Class 83 (iv)] An ejector apparatus for forging presses comprises a self-contained unit easily detachable from the press and adapted to be transferred from one ejector station to another, the unit comprising the ejector rod itself, the actuating means for the rod and the guide members for the moving parts. A table 5 carrying the die 6 is normally positioned over an aperture 7 in the bed 3 of the press, but may be moved across the bed to a position over an aperture 7<SP>1</SP> in an extension 3<SP>1</SP> of the bed. A hydraulic ejector device has a head 13 with two oppositely disposed projections by which it can be supported on oppositely disposed ledges 15 formed in the wall of the apertures 7 and 7<SP>1</SP>. When it is desired to move the ejector from one station to another, an eyebolt 20 is screwed into the end of the ejecting rod 9 and connected to lifting tackle, the ejector is then turned through 90 degrees to release it from the ledges 15 and is lowered on to a trolley 16 by which it is moved across the pit 17 to beneath the other aperture 7<SP>1</SP>. It is then lifted into this aperture and secured by turning through 90 degrees. Hydraulic fluid is supplied to the ejector by a pipe 21 adapted to swivel about a point 22 equidistant from the two ejector stations.
Patent GB-1223677-A (GB)
Title: A dynamo electric machine rotor shaft and commutator shell assembly
Inventor: ROBINSON REX HAROLD
IPC: H01R43/08
Filed: 1967-06-29
Abstract: 1,223,677. Making rotor shaft assemblies. GENERAL MOTORS Ltd. 6 June, 1968 [29 June, 1967], No. 30084/67. Heading B3A. [Also in Division H2] A dynamo-electric machine rotor shaft and commutator shell assembly 1 comprises a shaft 2 having a plain cylindrical surface portion to which is directly adhesively secured, coaxially therearound, by a thermo-setting synthetic resin mass 4, a cylindrical commutator shell 3 having inwardly bent integral tangs 10, 16 embedded in the mass and integral winding connector lugs 15 projecting freely from the mass. The shell is formed from a stamped blank of strip Cu in which the tangs and lugs are formed, which is then rolled to a cylindrical shape and its abutting ends welded; together with the shaft it is placed in a mould, and the resin is poured in and cured. After removal, the shell is slotted to form segments. The shell inner surface may be etched to improve the bond. The mould may be of steel or reinforced silicone rubber. The Specification describes suitable resin compositions and curing processes.
Patent GB-744216-A (GB)
Title: Improvements in or relating to electronic oscillator control means
IPC: H03B5/10
Filed: 1953-10-30
Abstract: 744,216. Keying carrier frequencies. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 30, 1953 [Oct. 30, 1952], No. 30085/53. Class 40 (5). An oscillator comprises two valves 1, 2 connected in push-pull and normally biased beyond cut-off by bias P1, P2 applied to their grids and a high impedance, e.g. circuit L2, C2, tuned to the oscillator frequency, connected between H.T. and the mid-point of the inductance L1 of the common tuned anode circuit L1, C1. Since due to the circuit L2, C2 the output circuit is not balanced for one valve being energized, the arrangement is such that the oscillator only commences to oscillate when each valve is simultaneously energized by unblocking signals applied at A1 A2 to the control grids of greater than a predetermined value. The valves may be variable transconductance tubes.
Patent GB-429501-A (GB)
Title: Improvements in or relating to polyphase electric converters
IPC: H02H7/12
Filed: 1933-10-31
Abstract: 429,501. Converting. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GARRARD, C. C., c/o General Electric Co., Witton, Birmingham. Oct. 31, 1933, No. 30222. [Class 38 (ii)] In a polyphase mercury arc converter, separate discharge devices 4 of the type in which the electrodes are subjected to a stream of gaseous fluid are used for each phase and means are provided which in the event of back-ignition removes the faulty discharge device from operation. The means may comprise voltage responsive relays 15 connected across each discharge device, or relays may be used which are responsive to the velocity of the gaseous fluid at the electrodes which is affected by back ignition, and in both cases the relays may open circuit breakers 5, 6 on each side of the discharge devices. In a modification, Fig. 2, (not shown), the pairs of discharge devices associated with opposite phases of the supply transformer are each associated with a balanced beam relay the opposing coils of which are connected in series one with each of the discharge devices. When the balance is disturbed by a fault in one of the discharge devices the beam is actuated to cause the opening coil of the corresponding circuit breaker to be energized. Opening of the latter removes the faulty discharge device from operation and prepares through auxiliary contacts thereon the circuit of a voltage relay connected across the remaining discharge device which relay if closed by reason of a fault arising in the remaining discharge device causes opening of the circuit breaker associated with that discharge device in the same manner as described with reference to Fig. 1. The circuit breakers may be arranged to reclose automatically after a time interval and means may be provided for locking out after a predetermined number of operations.
Patent GB-1017235-A (GB)
Title: Improvements in or relating to electric arc heaters
Inventor: HEWITT JOHN
IPC: H05B7/18
Filed: 1961-08-22
Abstract: 1,017,235. Arc blow torches. ENGLISH ELECTRIC CO. Ltd. Aug. 16, 1962 [Aug. 22, 1961], No. 30236/61. Heading H5H. In an electric arc gas heater, an arc is drawn between two annular electrodes 15, 16 and is caused to rotate by means of a magnetic field applied by means of at least one coil, the gas to be heated passing over the electrodes, at least one of the electrodes being hollow and containing the coil. As shown, the electrodes consist of arc-supporting members 19, 20 on supports 17, 18, the former being fixed to insulating wall 12 and the latter mounted adjustably on insulating wall 13, both walls carrying heat shields, and contain coils 25, 26 within epoxy resin castings 27, 28 which contain cooling water spaces 29, 30. Spaces 23, 24 are for cooling water. The arc is initiated by contact 53 moved by ram 54. The chamber is completed by cylindrical casing 11 of insulating material with water-cooled heat shield 43. The gas inlet is through orifice 42 and the outlet is through orifice 49 leading to watercooled conduit 50. There may be a copper sheath around coil 25 and a copper sheath inside casting 27 spaced to provide the watercooling space. In a modification (Fig. 4, not shown), coil 25 may be replaced by a number, such as four, of independent separated coil parts and insulating oil may be used for cooling.
Patent GB-784812-A (GB)
Title: Latch mechanism
IPC: E05B65/34
Filed: 1955-10-24
Abstract: 784,812. Door locks; latches. FERRO STAMPING CO. Oct. 24,1955 [Feb. 7, 1955], No. 30316/55. Class 44 A latch mechanism comprises a rotor having both a toothed latching wheel and latching lobes, a wedge cam being resiliently urged into the space between a fixed abutment and the latching. lobes, and means for moving the cam to release the lobe engaged thereby and allow rotation in the unlatching direction. The latch comprises a rotor having teeth 12, Figs. 1, 6, co-acting with a rack 22 on the door frame, so that as the door is closed, the rotor rotates anti-clockwise. The rotor also has lobes 30. Fig. 1, which co-act with a cam plate 78 loosely pivoted at 80. and having an arcuate slot 82 through which protrudes a fixed bolt 84; the plate 78 is urged clockwise by a spring 86. As the rotor turns anti-clockwise, the surfaces 94 of the lobes 30 bear on the cam surface 92 and rotate the plate 78 clockwise, the spring 86 tending to turn the plate 78 anticlockwise, so that when the door ceases moving, the portion of the plate 78 below the bolt 84 acts as a wedge to hold the rotor against clockwise rotation and thus prevent the door opening. Release of the door to addow opening may be obtained by clockwise rotation of plate 78 by moving the flange 90. Further means for releasing the latch comprise a lever 100, Figs. 2 4, pivoted at 102 and bifurcated, one bifurcation having a projection 104 movable into, the path' of a hook portion 106 on plate 78 so as to hold plate 78 against clockwise movement, and the other bifurcation 110 adapted to hook over-the plate 78 and move it clockwise to release the latching mechanism. The lever 100 may be actuated by mechanism attached to an elongated slot 112 or by a lever 72 attached to bifurcation at. 108, and released for actuation by a keyoperated lock 70. The latching teeth 12 are preferably helical and are associated with inclined teeth 22, Fig. 7, on the keeper plate 16; this arrangement resists relative movement in the direction 118. The angle of inclination is preferably between 30 and 60 degrees.
Patent GB-893060-A (GB)
Title: Stuffing material for packing purposes, and process for the manufacture thereof
IPC: B31F1/07
Filed: 1959-09-04
Abstract: 893,060. Laminates; honeycomb paper. CLEMENS, L. Sept. 4, 1959, No. 30316/59. Classes 96 and 140. A stuffing or packaging material comprises two framework layers of material, embossed to define closed configurations, the embossments of one layer being a mirror-image of those of the other, the two layers facing each other with the embossments mating and bonded to each other to form closed air spaces between the layers, and one or more layers of cellulose wadding next to the outer surface of each framework layer, the wadding layers being embossed in the same pattern as the framework layers, and in contact with and bonded to the framework layers. The framework layers may consist of paper or cellulosic, resinous or synthetic plastic sheet material. As shown, the framework layers 35 and 35<SP>1</SP> are embossed between the pairs of rolls 33, 34 and 33<SP>1</SP>, 34<SP>1</SP>. Adhesive is applied to the embossments of one by the device 7, and the two then united by pressure between the rolls 34 and 34<SP>1</SP>, to enclose air spaces 8. Wadding layers 39 and 39<SP>1</SP> are similarly embossed, adhesive is applied to the embossments of both by the devices 12 and 13, and they are then united to the framework layers. Other figures (not shown) illustrate a variety of suitable patterns for the embossments.
Patent GB-632465-A (GB)
Title: Improvements relating to the measurement of electrical resistance
IPC: G01R27/02
Filed: 1947-11-14
Abstract: 632,465. Resistance measurements. EVERSHED & VIGNOLES, Ltd., and PERRY, C. E. Nov. 14, 1947, No. 30329. [Class 37] A resistance-measuring device comprising a moving coil in series with a current limiting resistance has the range changed by shunting the moving coil and part only of the limiting resistance. As shown, a generator G supplies the crossed coils C, D of a ratiometer, coil D being in series with a current limiting resistance A, B and the resistance to be measured connected between L, E. To change the range, coil D and part A of the limiting resistance is shunted by resistance S. The Specification describes how the resistances A, B and S are calculated to give two scales, one starting at zero resistance and the other at 8 or 15 megohms.
Patent GB-1458897-A (GB)
Title: Connectors
IPC: G02B6/38
Filed: 1974-07-09
Abstract: 1458897 Connecting light guides CANNON ELECTRIC (GREAT BRITAIN) Ltd 9 July 1974 30354/74 Heading G2J An optical contact element which may form part of a connector 1, 2 comprises a metal ferrule 8 Fig. 2 having a cylindrical tunnel throughout the major portion of its length and a perpendicular endface which has a central aperture of less diameter than the tunnel. The optical fibre 5 has tail portion of reduced diameter the end of which is located centrally of the aperture by an optically transparent potting compound, after which the endfaces of the ferrule and the fibre are ground flat. The ferrule 8 of one part 2 of the connector may be slidable within a contact housing 9 against a spring 6 Fig. 2 to ensure good contact with the fixed fibre 4 of the other part 1 of the connector Fig. 1. Parts 1, 2 may be held together by a bayonet or screw-coupling nut 3.
Patent GB-1478632-A (GB)
Title: Method of and apparatus for manufacturing a floating cover for a liquid reservoir
IPC: B29C39/00
Filed: 1974-07-09
Abstract: 1478632 Floating covers LA VERMICULITE ET LA PERLITE SA 9 July 1974 [11 July 1973] 30381/74 Heading EIT A floating cover for a liquid reservoir e.g. of fresh or waste water is made by extrusion moulding from a rapidly polymerisable foamed plastics material at the site of the reservoir a succession of elongate elements having a substantially parallelogram cross-section, the moulding being effected so that as each of the moulded elements issues from the mould it moves into a position adjacent a previously moulded element spanning the reservoir, and a bonding material is applied between adjacent elements to join them together. As shown the extrusion moulding device 6 moves in steps along a track 7 and its operation is controlled by a sensing device 12, which operates a control unit 15, moving in synchronism along a track 13. A severing device (not shown) associated with the moulding machine cuts off each element 1 to the desired length. The control unit causes a bevelling device to form a V-groove along the margins of adjacent elements 1 into which an adhesive bonding material is fed by a supply unit 8 arranged to traverse the reservoir between carriages 10 movable along guides 11. In a modified arrangement, (Fig. 3 not shown), for making a floating cover for a reservoir having parallel banks the moulding, not necessarily by extrusion is effected so that each new element is formed adjacent a previously formed element and preferably the moulding device remains at one end of the reservoir and hydraulic jack means are provided for moving all the previously formed elements along the length of the reservoir. The elements may be formed of foamed polyurethane having less than 20% of open cells and the same material may be used as the bonding material. Metal or plastics reinforcing elements may be buried in the bonding material in the grooves formed by adjacent elements.
Patent GB-331451-A (GB)
Title: Improvements in or relating to the manufacture of compound fertilisers and of sodium bicarbonate
IPC: C05C1/00
Filed: 1929-10-07
Abstract: 331,451. Soc. Chimique de la Grande Paroisse Azote et Produits Chimiques. Nov. 20, 1928, [Convention date]. Manures.-A process for the production of a fertilizer and of sodium bicarbonate consists in subjecting sodium nitrate and potassium chloride or natural or artificial products containing these salts to a double decomposition in accordance with the equation (a) NaNO3 + KCl = KNO3 + NaCl, then treating the resulting mixture with carbon dioxide, ammonia and water to set up the reaction (b) NaCl + CO2 + NH. + H2O = NaHCO3 + NH4Cl, and in the event of any untransformed sodium nitrate remaining in the product to set up in addition the reaction (c) NaNO3 + CO2 + NH3 + H2O = NaHCO3 + NH4NO3, and finally by utilizing the differences in solubility effecting the separate recovery of sodium bicarbonate and a compound fertilizer consisting mainly of potassium nitrate and ammonium chloride but containing also ammonium nitrate and potassium chloride if the starting material contained an excess of sodium nitrate or potassium chloride. The composition of the fertilizer may also be varied by transforming only a portion of the salts by the reactions (a) or (c). The reactions (b) and (c) may be carried out by applying the Schreib process as described in Specification 160,172, [Class 1 (ii), Inorganic compounds, other than &c.]. The sodium nitrate .employed in reaction (a) may be obtained by the reaction of nitric acid or nitrous vapours on the sodium bicarbonate produced in the process. The mixture of salts obtained by the action of nitric acid or nitrous vapours on alkali chlorides may be used in the process and the vapours given off in the last-mentioned reaction may be absorbed in bicarbonate, and the product also used in the process.
Patent GB-278915-A (GB)
Title: Improvements in or relating to struts for use on aircraft
IPC: B64C3/18
Filed: 1926-12-01
Abstract: 278,915. Tips, E. O. Dec. 1, 1926. Framework.-A jury strut for supporting the free ends of the spars of folding or detachable aircraft wings comprises a tubular member a with a ball end b adapted to engage a socket c on the wing spar, and a fork g screwed into a plug at the other end of the member a and adapted to engage a pin h between two cheeks j on the other wing spar or on a support on the fuselage. By rotating the member a when the fork g is engaged by the cheeks j the effective length of the strut can be varied, and when correctly adjusted a pin is inserted through holes o in the member a and through a slot n in the shank of the fork g. A cord attached to one end of the pin carries a safety pin adapted to be inserted in a hole at the other end to retain the locking pin in position.
Patent GB-1319854-A (GB)
Title: Channel selecting sysem
IPC: H03J5/24
Filed: 1970-06-23
Abstract: 1319854 Tuning arrangements MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 23 June 1970 [25 June 1969 27 June 1969] 30545/70 Heading H3Q A channel selecting system comprising UHF and VHF tuners 1, 2, IF amplifier 3 and a frequency discriminator 4 has means 6 to switch between UHF and VHF tuners for selectively applying tuning voltages to the UHF and VHF tuners, the output of the frequency discriminator 4 and a constant D.C. voltage 5 are applied to a voltage regulator 8 for supplying a channel tuning voltage to the VHF tuner and the output of the frequency discriminator 4 and a constant D.C. voltage 5 are applied to a further voltage regulator 7 for supplying a channel tuning voltage to the UHF tuner. The constant D.C. voltages may be both from a D.C. amplifier 5 as shown or may be from a D.C. amplifier 5 for the VHF tuner (Fig. 5, not shown), and from a further D.C. supply (13) for the UHF tuner. In this alternative arrangement the tuning voltages for the VHF tuner are obtained from a multiposition switch (15) deriving its outputs from a series of variable resistors 14 which replace variable resistor 8. The output from the discriminator 4 provide an AFC voltage superimposed on the channel tuning voltage. An AGC voltage from 9 (Fig. 1) is applied to the base (11, Fig. 2, not shown) of a carrier amplifier transistor in the discriminator 4 so as to provided a constant AFC when receiving UHF. The channel selection system may be used for a T.V. set.