baber/WOPTO huggingface dataset:
Patent GB-739598-A (GB)
Title: Improvements relating to aircraft undercarriage steering mechanism
IPC: B64C25/50
Filed: 1953-03-25
Abstract: 739,598. Aircraft undercarriages. DOWTY EQUIPMENT, Ltd., and THARRATT, A. March 25, 1954 [March 25, 1953], No. 8284/53. Class 4. In an aircraft retractable nose-wheel or tailwheel mounting having a wheel-carrying column mounted rotatably in a retractable leg and including piston-and-cylinder mechanism operative between the leg and the column for steering the mounting when the aircraft is ground-borne, and for centering the mounting when the aircraft is air-borne, the retractable leg comprises a central tubular support 4 and side arms 5, 6 united by a cross beam 7, the support 4 carrying a rotatable wheel-carrying column 11. The beam 7 carries an arm 16 which, with the arm 6, forms a fixed connection for a piston and piston rod assembly 14, 15, 18, the rod 14 being of smaller diameter than the rod 15. A cylinder 17 is slidably mounted on the assembly to form with the piston 18 two chambers 19, 20 and it has an arm 21 connected by a link 22 to a further arm 12 secured to the column 11. An auxiliary cylinder 27 is secured to the underside of the cylinder 17 and parallel therewith, the interior of the cylinder 27 being in direct communication with the chamber 20 and the piston rod 31 being arranged to abut, when extended, on a stop face 33 on the crossbeam 7. Pressure fluid is passed to the chambers 19, 20 through conduits 23, 24 and apertures 25, 26 in the respective piston rods 14, 15 and from the chamber 20 to the single-acting jack 27, 31. Because of the different diameters of the piston rods 14 and 15 the chamber 20 is smaller than chamber 19 and the effective cross sectional area of cylinder 27 is such that the combined cross sectional areas of chamber 20 and cylinder 27 is greater than the area of chamber 19. The fully extended length of the jack 27, 31 is such that, if after take-off, of the aircraft, the cylinder 17 is displaced either to the right or left of its central position on the piston rod assembly as viewed in Fig. 2, the admission of pressure fluid to the chambers 19 and 20 and the jack 27 will cause the rod 31 to become fully extended and abut on the face 33 and either force the cylinder 17 to the left to its central position or to limit the movement of the cylinder to the right when the central position is reached, thereby ensuring that the undercarriage is always centred before retraction.
Patent GB-709671-A (GB)
Title: Improvements in and relating to hot water boilers
IPC: F24H9/20
Filed: 1952-04-02
Abstract: 709,671. Supply arrangements for hot water boilers. PLAISIER, P. J. April 2, 1952 [April 5, 1951], No. 8370/52. Class 64(1) [Also in Group XXXV] In a thermostatically-controlled electrically heated hot-water boiler, (see Group XXXV), the cold water feed pipe 4 extends for a certain distance into the interior of the boiler, and the supply of cold water is controlled by a temperature-sensitive member 24 situated in the pipe 4, at a distance from its outlet, which closes the circuit of a magnetically operated valve 5 which opens to admit cold water when the temperature of the water already present in the boiler reaches a predetermined value. Depending upon the position of the thermostat 24 in the pipe 4 the cold water flowing in the pipe is preheated, this being promoted by means of heat conducting supports 25. Hot water is drawn off through a pipe 6 which is provided with a flat collar 27 to prevent mixing of the hot and cold water when the water level is low, and an overflow pipe 13 prevents the water from rising above a predetermined level. The loss of heat where the pipes enter the wall of the boiler may be reduced by means of heat-insulating members as at 28.
Patent GB-1412621-A (GB)
Title: Re-circulating ball arrangements
IPC: F16H25/24
Filed: 1972-02-24
Abstract: 1412621 Screw-and-nut mechanisms JOHNSON PRECISION (NG) Ltd 15 Feb 1973 [24 Feb 1972] 8484/72 Headings F2Q and F2E] In a recirculating ball screw arrangement comprising a nut 2 which is adapted to be moved on rotation of a drive shaft 1 in one direction, rotation of the shaft 1 in the opposite direction is prevented by a self-jamming taper roller brake 20 until the brake slips within a bell housing 12. The brake 20 comprises a housing 19 which is urged into contact with a phosphor bronze ring 18, located in the bell housing 12, by a conical spring washer 23 acting through a thrust race 21. The tension of the washer 23 may be adjusted by means of a bolt 16 and lock nuts 29. The lock nuts may be replaced by a cam lever or other quick release arrangement to allow of immediate release of the loading of washer 23.
Patent GB-1458242-A (GB)
Title: Limit switch operating mechanism
IPC: H01H21/28
Filed: 1974-02-25
Abstract: 1458242 Retractive switches CUTLERHAMMER EUROPA Ltd 25 Feb 1974 [26 Feb 1973] 8497/74 Heading H1N The description is identical with that in Specification 1,458,241, but the claims are directed to the mechanism for allowing operating member 8 to operate the switch in one of its two directions only or the other direction only or in both directions.
Patent GB-1507403-A (GB)
Title: Method for setting a fuse after firing a projectile from a weapon
IPC: F42C11/06
Filed: 1976-03-04
Abstract: 1507403 Fuze setting apparatus WERKZEUGMASCHINENFABRIK OERLIKON BUHRLE AG 4 March 1976 [10 March 1975] 08593/76 Heading F3A An apparatus for setting the fuze of a projectile 4 that has been fired from the muzzle of a weapon barrel 1, comprises an induction coil 2 which detects the projectile and activates a computer 5 that calculates the firing time of the fuze, taking into account the projectile's velocity and the range of the target, and feeds the information via a transmission device 6 and an induction coil 3 to an induction coil 7, forming part of the projectile fuze, as the projectile passes through the coil 3. The coil 2 may be formed in two parts which measure the velocity of the projectile. The fuze in the projectile has an RC circuit for delaying detonation of the projectile on impact with its target, the resistors of which circuit can be disconnected by switching resistors in response to signals from the fuze setting apparatus so as to set the impact delay. Should the projectile fail to strike its target within the time setting of the fuze, a counter receiving pulses from an oscillator forming part of the fuze detonates the projectile when a predetermined number of pulses have been accumulated.
Patent GB-124953-A (GB)
Title: Improvements in Controlling-gear for Rolling-mill and like Steam-engines.
IPC: F01K7/00
Filed: 1918-05-23
Abstract: 124,953. Stewart & Co., D., and Holmes, T. E. May 23, 1918. Hand, foot, and like gear; hunting-gear. - Steam-engines for rolling-mills &c. are controlled jointly by throttle-valves and reversing valve-gears under the control of single levers. With slight movements of the levers, the control is effected with throttled steam; with further movements of the levers, the throttle-valves are opened rapidly and the engines controlled by the valve-gears. The lever H is connected through floating-lever devices with two fluid relays G, C which are again connected up, through a floating-lever to the throttlevalve, and the further end of the lever is connected by links J, J', J<2>, J<3> with a reversing- engine comprising two differential rams M, M<1> the smaller of which is in constant communication with an accumulator, and with its controlling- valves by a link L<1>. The relay-cylinders G, C are connected to levers F, B. The lever B actuates a lever A pivoted on the engine frame, and the lever F a lever D pivoted on A and actuating the throttle valve E. The levers B, F are connected by links C<5>, G<5> each to one end of floating-levers C<3>, G<3> which actuate the controlling-valves of the relay motors, and are connected at their other ends to bell-cranks C', G<7> actuated through links H<1> and a bell-crank H<2> by the hand-lever H. Cam, wedge, or other hunting-gear may be used instead of the lever mechanism described.
Patent GB-785187-A (GB)
Title: Overvoltage protection device
IPC: H02H9/06
Filed: 1956-03-20
Abstract: 785,187. Protective arrangements. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 20, 1956 [March 23, 1955], No. 8619/56. Addition to 751,443. Class 38 (4). The over-voltage protective device described in the parent Specification is modified by the provision of a voltage divider comprising parallel-connected chains of impedances 5a, 5bc, 5d and 14ab, 14cd, which are alternately connected to junction-points between the main spark-gaps 4a ... 4d, as shown. The present arrangement facilitates the breakdown of the main spark-gaps, so diverting current from the protected equipment 1 when the auxiliary precision gap 6 breaks down due to excessive voltage across the protected equipment. Each impedance element may be formed by a resistor shunted by a capacitor. Coupling impedances 20, 21 may be provided.
Patent GB-164180-A (GB)
Title: Improvements in or relating to rotary pumps or compressors
IPC: F04B1/04
Filed: 1920-03-24
Abstract: 164,180. Ricardo, H. R. March 24, 1920. Revolving-cylinder pumps; heat of compression, absorbing.-In a pump or compressor comprising a series of radial cylinders rotatable about a fixed spindle or trunnion, the cylinder inlet and outlet ports being controlled by ports in the trunnion, and the pistons having rollers at their outer ends running on an eccentric floating circular track, a valved delivery passage is formed in the trunnion serving all the cylinders, cooling water is circulated in the trunnion, and a rotary sleeve formed in one with the cylinders is supported on ball bearings from the trunnion and separated from the trunnion by a liquid film or labyrinth packing, the sleeve constituting the ends of the cylinders and being formed with ports corresponding with an inlet and an outlet port in the trunnion. As shown, the trunnion A is formed with an inlet port H connected by a passage with the ball bearings J on which the sleeve K is supported, and with an outlet port C<2> connected with an outlet passage C controlled by a ball valve D<1> held by an adjustable spring and leading to a valved discharge passage F. Cooling water is circulated in the trunnion by a passage G containing an open-ended tube G<1>. Ports K<3>, L' in the sleeve coact with the ports C<2>, H, controlling the passage of air to and from the cylinders. The pistons carry rollers M<1> running on a track N carried by a two-port casing N', N<2> mounted eccentrically on ball bearings. The inner end of the sleeve is castellated to engage a toothed disc P on the driving shaft P<1>.
Patent GB-710988-A (GB)
Title: Improvements in or relating to circuits for synchronizing electrical oscillators
IPC: H03B5/34
Filed: 1952-04-04
Abstract: 710,988. Modutating systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 4, 1952 [April 9, 1951], No. 8676/52. Class 40 (5). [Also in Group XXXV] In an automatic phase control system (see Group XXXV) a balanced amplitude modulator comprises a transformer 14 and two rectifiers 12, 13 alternately rendered conducting in the same direction in 'the transformer primary circuit by a carrier oscillation and a D.C. control voltage applied in series at a centre tap of the primary, the arrangement being such that the rectifiers 12, 13 are conducting for different fractions of a period of the oscillations and a carrier output is passed to a tuned secondary circuit C of amplitude and phase sense determined by the magnitude and polarity respectively of the control voltage.
Patent GB-213931-A (GB)
Title: Improvements in the manufacture of casings for sausages
IPC: B29C48/09
Filed: 1924-04-07
Abstract: 213,931. Freund, E. O., (Assignee of Henderson, W. F.). April 7, 1923, [Convention date]. Extrusion machines.-In an apparatus for the extrusion of viscose solution to form sausage casings, the viscose is forced by a plunger 2 through the annular space between the members 6, 7, into a bath of liquid, contained in the receptacle 11, which converts the extruded material into cellulose hydrate. Liquid is also supplied to the inside of the extruded tube 12 through the hollow member 7 and escapes through a central, valve-controlled drain 13, the tube 12 being thereby distended and prevented from collapsing. The tube 12 is wound on a spool as it is delivered from the bath, the thickness of its walls depending on the speed of the spool and the degree of inflation due to the central liquid supply. The cylinder is provided with a relief 3 and the member 7 is centred by screws 9. In modifications, the member 7 supports a mandrel over which the tube is extruded, the distending supply of liquid issuing from apertures in the sides of the mandrel and escaping through a central channel, or two pump chambers containing weighted pistons are used alternately whereby the process is made continuous. Specification 226,211 is referred to.
Patent GB-369398-A (GB)
Title: Improvements in and connected with windows
IPC: E05D15/00
Filed: 1931-03-21
Abstract: 369,398. Hook fastenings. EBINGER, J. and MONTAG, J., 2, Rolandstrasse, Cologne, Germany. March 21, 1931, No. 8722. [Class 44.] A fastening device for windows which are opened on scissors-like levers 7, 8, into a parallel position outside the frame by a sliding link 3 having pin-and-slot connection with an actuating lever 9, comprises pins on the links 3 adapted to engage in inclined slots in brackets 12 on the sashes during a lost movement of the opening due to a flat part of the actuating slot 14. In a modification, Fig. 15, the fastening comprises slotted brackets 46 on the sliding links 23 and fixed slotted members 48 which engage the pins 40 on which the sash is supported during the final closing movement.
Patent GB-1359127-A (GB)
Title: Method and apparatus for binding articles
IPC: B65B13/06
Filed: 1973-02-22
Abstract: 1359127 Binding apparatus TITAN VERPACKUNGSSYSTEME GmbH 22 Feb 1973 [26 Feb 1972] 8784/73 Heading B8C Rolls of sheet metal or paper are bound with metal strip or wire 26 by a device which includes a strip guide consisting of three segments 3, 4, 5 pivotable on a stand 1 by means of pressure cylinder 19 to contact the surface of the roll 20 such that only the minimum strip is drawn from supply device 28 and guided by rollers 13, 15 to pass round the roll for strip-tying device 30. Rollers 13, 15 are magnetic, and those on segments 4, 5 engage and follow tracks 17, 18 on segments 3, 4, respectively. The guide segments will accept rolls to a maximum diameter 21.
Patent GB-198495-A (GB)
Title: Improvements in portable gramophones
IPC: G11B25/04
Filed: 1922-03-27
Abstract: 198,495. Wallis & Son, Ltd., J., and Wright, F. W. March 27, 1922. Cases with internal horns.-In portable gramophones of the kind having a sound amplifying chamber below the turntable and a tone-arm mounted in guides permitting of its movement into and out of operative position, the tone-arm is mounted on a base located in horizontal guides during playing, and is capable of being moved along these guides clear of the conection with the amplifier and then lowered down vertical guides into a recess in the case when out of use. The Figure shows the tone-arm e out of action with its base f at the bottom of vertical guides i in the case a. To move into playing position, the base is raised in the guides i and moved along between horizontal guides g until its outlet is over the inlet to the amplifier c.
Patent GB-512860-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K1/18
Filed: 1938-03-22
Abstract: 512,860. Motors. SIEMENS-SCHUCKERTWERKE AKT.-GES. March 22, 1938, No. 8793. Convention date, March 22, 1937. [Class 35] The stator of an electric motor comprises a group of polygonal laminations 2 mounted in a frame 1 which is perforated in the form of a grid, the transverse bars of which embrace the greater part of the flanks of the laminations while the corners of the laminations extend through the meshes of the grid. The frame may consist of a metal sheet, Fig. 3, having rectangular openings at 3 to receive the corners of the laminae and having inwardly bent flanges 4 which bear against the end faces of the laminated core. The projecting corners of the laminations are preferably cut off flush with the external surface of the frame. The spaces between the straight flanks of the core and the curved frame may' be employed as cooling ducts and may receive connecting bolts for the bearing brackets. In a modification, the frame is flattened against the core flanks but is cylindrical at its ends. Fig. 8 shows a cast or die-cast frame 12 having integral feet 13. As applied to a single-phase capacitor motor, the slot depth is progressively increased from the smallest slot for the auxiliary phase winding to the largest slot for the main phase winding.
Patent GB-458721-A (GB)
Title: Improvements in or relating to pipe bending and like tools
IPC: B21D7/06
Filed: 1936-03-25
Abstract: 458,721. Angular beading. ASH, T. FREER-, Mumzone Bungalow, Sandhills, Rhyl, Flintshire, and LORD, J., 290, Greenside Lane, Droylsden, Manchester. March 25, 1936, No. 8854. [Class 83 (iv)] A tube k is secured to a former c by a clip m and is bent by a shoe h pivoted on a pin i by a heel and toe movement from a lever l. The shoe carries flanges extending into the groove of the former.
Patent GB-676151-A (GB)
Title: Improvements in methods of packing nested baking cups and similar goods
IPC: B65D75/06
Filed: 1950-04-11
Abstract: 676,151. Packages. ROYDHOUSE, E. F., and AUTOLEX, Ltd. Feb. 9, 1951 [April 11, 1950], No. 8855/50. Class 94(i) A package of nested baking cups or similar articles is formed by inserting two assemblies of nested cups 1 and 2 into a transparent cover-tube 3 so that they lie base to base, tucking the ends 4 of the tube into the mouths of the cups and fastening a band 5 round the cover-tube at the point where the bases of the assemblies meet so as to contract the middle part of the cover-tube and draw it into close contact with the bases of the assemblies.
Patent GB-836491-A (GB)
Title: Alloy steel for cast parts which is resistant to high temperatures and corrosion
IPC: C22C38/58
Filed: 1958-03-20
Abstract: An alloy steel, suitable for forming by casting valves and other parts of internal combustion engines, has a composition, in per cent by weight, in the following range:  .C.0.9-1.6 .Si.0.6-1.2 .Mn.5.0-8.0 .Cr.15.0-25.0 .Ni.1.0-2.0 .N.0 -0.4 .Fe the remainder.. The alloy may be preciptation hardened by quenching from 2150 DEG F. and then heating to 1400 DEG F. for about 8 hours.
Patent GB-373331-A (GB)
Title: Improvements in or relating to high frequency radio transmitters and receivers
IPC: H04B1/46
Filed: 1931-03-24
Abstract: 373,331. Wireless transmitting and receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Hansell, C. W. ; Port Jefferson, Long Island, New York, U.S.A.) March 24, 1931, No. 9028. Convention date, April 8, 1930. [Class 40 (v).] In a combined transmitting and receiving system for wireless telephony, the strength of the modulating current in the microphone circuit regulates the activity of the carrier wave generator and the sensitivity of the receiving valves. Speech currents arising in a microphone M are applied to the grid circuit of an amplifier valve 2 in series with a resistance R2 shunted by a condenser 34. Normally the valve has no grid bias, but when the microphone is active, grid current passing through the resistance R2 gives the grid a mean negative potential. As the internal resistance of the valve is normally low, a resistance 7 in its plate circuit keeps the plate voltage correspondingly low. When however the grid becomes negative, the plate voltage rises and a more positive average voltage is applied to the inner grid of a four-electrode oscillator valve 1. The activity of the oscillator is thus regulated in accordance with the volume of sound acting on the microphone, and at the same time the oscillator output is modulated by the speech currents. The receiving-valves 56, 63 are rendered insensitive, by including the resistance R2 in series with the bias battery C in the grid circuits of these valves. When speech ceases, the bias of the valves 56, 63 is restored to normal so that incoming signals are amplified. The dynamo 4 supplies high-tension current through a smoothing circuit 12, 13, 14 to the speech amplifier 2 and the oscillator 1, and the voltage for the receiving valves 56, 63 is reduced by a series resistance 60. A shunt resistance 68 provides a continuous load on the dynamo, and a shunt condenser 69 byepasses high-frequency current. The valve oscillator 1 has a tuned plate circuit which is coupled to an aerial 17, and reaction is provided by an electrode capacitatively associated with the aerial coil 18 and connected to the grid 21 through a long electrical path 19 and condenser 20. The length of the line 19 and the impedance of its terminating coil 23 are adjusted so that for the wave-length chosen the grid and plate potentials are in opposite phase. The grid is biased by providing a leak resistance R shunted by a condenser 26 ; and a reactance or resistance R, prevents high-frequency current being shorted by the condenser 26.
Patent GB-751996-A (GB)
Title: A process for the production of a red disazo dyestuff
Filed: 1954-03-29
Abstract: The invention comprises a disazo dyestuff obtainable by tetrazotizing 4, 41-diamino-2, 21-dimethyldiphenyl-methane and coupling with 1 molecule each of 2-hydroxynaphthalene-6-sulphonic acid and 2-hydroxynaphthalene - 3, 6 - disulphonic acid.  The dyestuff dyes leather in brickred shades.  An Example is provided.
Patent GB-843482-A (GB)
Title: Electrolytic cells for reclaiming uranium from solutions
IPC: C22B60/02
Filed: 1945-04-11
Abstract: 843,482. Electrolysis. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 11, 1945 [April 21, 1944], No. 9085/45. Class 41. An electrolytic cell, e.g. for reducing uranyl and ferric ions in an acid solution to uranous and ferrous ions respectively, comprises an upper casing part 12 removably secured to a low casing part 11, a plurality of alternate anode and cathode compartments 30, 31 enclosed in the casing 12, porous partitions 28, e.g. of alundum, separating adjacent compartments 30, 31, an anode 38 in each compartment 30 and movable cathode 46 in each compartment 31, mercury 62 in the casing 11 contacting the partitions 28 to close the compartments 31, means for moving the cathodes 31 to immerse them successively in the mercury 62, in an electrolyte passing through the compartments 31 and in the mercury 62, and means, e.g. openings 18b, for passing the solution to be treated through the compartments 31. The anodes 38 may be graphite, and the cathodes 46, which are discs mounted on a rotatable shaft 41, may be nickel. The liquid to be treated is passed through groups of compartments 31 in parallel, each group comprising three compartments in series, inter-connected by external conduits joining the openings 18b. The construction of the casing 11, 12, the mounting of the electrodes 38, 46, and the details of the electrical supply are as described in Specification 794,490. The cell is operated as follows:-The compartments 30, 31 are filled with electrolyte 65, e.g. 3N HCL, and the solution to be treated, e.g. 3N HCL containing UO 2 ++; Fe+++, Cu++, Ni++, and Cr+++ions, is passed through the compartments 31 whereby the VO 2 ++ and Fe+++ ions are reduced respectively to U++ ++and Fe++, and the solution passes to a storage vessel. Some of the other metal ions are deionized and carried into the mercury 62 to amalgamate therewith. Chlorine comes off at the anodes 38, being free to pass through the partitions 28, the oxidizing effect of chlorine on the ions in the compartments 31 being thereby avoided. A cock 27 allows the casing 11 and compartments 31 to be drained, and the compartments 30 may be emptied of electrolyte by siphoning. A current density of 0À3 amp per square cm. of total cathode area, a voltage of 4, and a solution flow rate of 50 cc. per minute are mentioned. Specifications 812,794 and 816,772 also are referred to. Specification 9087/45 open to Inspection under Section 91.