baber/WOPTO huggingface dataset:
Patent GB-1188423-A (GB)
Title: Improvements in or relating to Gas-Filled Valves Incorporating Thermionic Cathodes
IPC: H01J17/20
Filed: 1968-04-24
Abstract: 1,188,423. Gas-filled thermionic valves. M-O VALVE CO. Ltd., and B. O. BAKER. 26 Feb., 1969 [24 April, 1968], No. 19512/68. Heading H1D. A gas-filled valve, e.g. a thyratron, includes an anode, a cylindrical cathode 1 and, coaxially surrounding the cathode, a metal structure comprising first and second tubular members 6 and 7, the second member 7 disposed between cathode 1 and the first member 6 is reticulated, e.g. a wire gauze or mesh, wherein during operation the members 6, 7 are maintained at the same potential and have a radial spacing such that a discharge between the anode and cathode 1 triggers a hollow cathode discharge between the members 6 and 7, the emission from which contributes to the total anode current of the valve. The gas filling may be one or more of the gases hydrogen, deuterium, argon and krypton, in which case the product of the gas filling pressure and the radial spacing between members 6 and 7 is preferably between the limits 0À1 and 1À0 cm. Torr. Corresponding limits for gas fillings of helium, xenon and mercury are given. In the example given, cathode 1 is of porous tungsten impregnated with alkaline earth metal compounds, and the members 6 and 7 are of molybdenum; and cathode 1 and members 6, 7 are held at the same potential and mounted on a common metal base 2. The gas-filling is of hydrogen at between 0À1 and 0À6, e.g. 0À4, Torr. In operation, the deposition of emissive material from cathode 1 on to the walls of members 6 and 7 is found advantageous. Cooling fins may be attached to one of members 6 and 7.
Patent GB-314393-A (GB)
Title: Process for the recovery of hydrocarbons and oils or greases from waste mixtures
IPC: C11B13/00
Filed: 1929-06-25
Abstract: 314,393. Grubenbecher, J., and Preiss, P. June 26, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Recovering fats, oils, and waste lubricants.- Benzine, benzol, and other oils and greases are recovered from waste garage liquids by filtering or centrifuging or the like to break the emulsion and separate water, and then fractionally distilling.
Patent GB-195346-A (GB)
Abstract: 195,346. Soc. des Etablissements Gaumont. March 24, 1922, [Convention date]. Addition to 180,684, [Class 37, Electricity, Measuring &c.]. Void [Published under Sect. 91 of the Act]. Mariners' compasses.- In the electromagnetic compasses described in the parent Specification for determining and indicating at a distance the direction of the earth's magnetic field, the receiver now comprises a magnetic needle deflected to reproduce the direction of the earth's field at the iron ring of the transmitter by an electromagnet which is supplied with alternating current from the coil of the receiver or transmitter, and the reluctance of which is varied periodically so that a resultant rectified field of definite polarity is produced. In the form shown in Fig. 1, a rotatable coil 6 is mounted at the centre of the receiver winding 4<1> connected to the secondary winding 4 of the transmitter as in the parent Specification, and is connected to electromagnet windings 14, 14<1>. A toothed iron wheel 15 acting as a yoke to the electromagnet core is mounted on the shaft of the alternator 3 supplying the winding 1 of the transmitter. The number of teeth on the wheel 15 is so chosen that, for alternations of the current in the windings 14, 14<1> in one direction, teeth are opposite the electromagnet cores and the reluctance is thus decreased, whilst, for alternations in the opposite direction, recesses in the wheel 15 are opposite the cores and the reluctance increased. A magnetic needle 16 controlled by a magnet SN is deflected by the resultant field of the electromagnet and reproduces the direction of the earth's field at the transmitter ring 1. In modifications, the reluctance of the core of the electromagnet 14, 14' is varied periodically by supplying alternating current from an alternator of the same frequency as the alternator 3 either to a winding of insulated iron or bimetallic wire with copper core and iron covering forming the core or to a winding 17, Fig. 3, arranged on branches of the core to produce magnetic saturation of the core at each alternation of the current in the winding 17 and having no mutual inductance with the windings 14, 14<1>. In other forms, the winding 4<1> of the receiver surrounds a magnetic anchor ring forming the electromagnet of the receiver, diametral poles being produced and controlling a needle at the centre of the ring. The reluctance of the ring is varied by alternating current supplied from an alternator 3 and passed either through an iron or bimetallic winding forming the ring or through a winding surrounding the ring and producing magnetic saturation in it at each alternation of the current. In all forms, the needle 16 may be replaced by other forms of magnet or by a coil carrying continuous current; a double system with astatic magnets or multipolar constructions may be used; or the needle 16 or its equivalent may be fixed and the electromagnet 14, 14<1> movable.
Patent GB-123509-A (GB)
Title: Razor.
IPC: B26B21/00
Filed: 1918-11-28
Abstract: 123,509. Gugy Freres, (Assignees of Besanþon, H.). Feb. 20, 1918, [Convention date]. Razors, safety. A thin blade d is gripped between parts b, b<1> of a resilient metal strip a, the upper jaw b being provided with three studs which project through openings in the blade d and in the jaw b'. The middle stud is provided with a tightening-nut e. The metal strip a is shaped to form a handle for the razor.
Patent GB-1271682-A (GB)
Title: Standardization system for a digital radiation gauge
Inventor: GRANT MICHAEL PETER
IPC: G01N23/16
Filed: 1969-04-17
Abstract: 1,271,682. Radiation measuring gauge. INDUSTRIAL NUCLEONICS CORP. April 17, 1969 [May 21, 1968], No.19749/69. Heading G1A. In a nucleonic measuring system of the type wherein material is moved through the path between a nucleonic source and a detector producing recurring pulses the pulse rate of which is an indication of the measure, and wherein the material and source-detector unit are relatively movable away from each other for standardization purposes, the output pulses are counted during a predetermined standardizing interval and the count is used either directly, or by influencing an auxiliary oscillator to modify a measuring interval count or to modify the time interval of the measuring period or both to compensate for dirt, source decay &c. The system may measure weight per unit of area, or thickness. Output pulses from a detector 14, Fig. 1 are fed to a measuring counter 32 or to a standardization counter 54 via amplifiers 22, 28, a shaper 26, and a switch 30, the measuring counter being additive or subtractive in respect of another pulse input from a generator 34, or of a predetermined number which may be set in. The standardisation counter 54 is controlled by a timer 56 to start a count only when the material is clear of the path and its output signal is converted to an analogue value in unit 58. Unit 58 controls the pulse rate of generator 34 and the counting time of counter 32, the latter through a ratio inverter 70 and an integration gate 72 comprising an asymmetrical multi-vibrator. The integration gate also provides a pulse to reset counter 32 and readout 40. When counter 32 is additive its count may also be compared with a preset number for readout purposes. An alternative embodiment for count down from a preset figure is described with reference to Fig. 3 (not shown), this arrangement using the change of counting period only, for compensation. In a further embodiment using a down counter 32" described with reference to Fig.4 the standardization signal from counter 54 is set in as an input to a second down counter 88, and clock pulses from generator 94 effect the count down, a pulse on line 90 starting both of the down counts, and a terminating pulse from a control counter 92 in response to the completed down count in counter 88 terminating both counts in counters 32" and 88. (For Figures see next page)
Patent GB-1100448-A (GB)
Title: Improvements in or relating to a pipe repair clamps
IPC: F16L55/172
Filed: 1966-05-04
Abstract: 1,100,448. Pipe joints. DRESSER INDUSTRIES Inc. 4 May, 1966 [20 May, 1965], No. 19798/66. Heading F2G. [Also in Division E2] In a pipe repair clamp comprising a flexible metallic band 13 having lug assemblies 16 including interengaging torque arms 18 which prevent rolling of the lugs when the bolts 19 are tightened, and a gasket 14 secured to the band and having abutting ends 15, a member 20 spanning the gap between the ends of the band is secured to one end of the band and a supporting element 21 carried by the gasket extends beyond the edges 11, 12 of the member 20. In a modification, the element 20 is replaced by two supporting elements.
Patent GB-650084-A (GB)
Title: Improvements in or relating to suspension systems for aircraft
IPC: B64C25/60
Filed: 1948-07-23
Abstract: 650,084. Aircraft landing gear. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES S.I.A.M. July 23, 1948, No. 19817. Convention date, July 24, 1947. [Class 4] [Also in Group XXXII] A suspension system for aircraft comprises a piston-and-cylinder type shock absorber operatively connected between a land wheel or equivalent member and the aircraft, in combination with a control device or devices, actuated by the braking system of the aircraft and connected to the absorber to vary the operating characteristic thereof in accordance with variations of the braking effort or the brake torque resulting therefrom. The shock absorber as applied to the nose wheel element of a tricycle undercarriage comprises a cylinder 1 provided with a principal piston 2 connected to a secondary piston 3 by a rod 4 passing freely through a fixed diaphragm 5, the space between the pistons being filled by liquid 6 which, by passing through an orifice 7, absorbs landing shocks transmitted to the piston rod 8. Return movement of the pistons is effected by expansion of the air in chamber 9 which is in communication with an auxiliary air vessel 12 through the medium of a flap valve 15 which is provided with an orifice 16 and which seats on its undersurface on an anular projection so that it permits a free flow of air from cylinder 12 to cylinder 9, while restricting the reverse flow of air to the orifice 16. The vessel 21 is provided with a piston 13 supported by liquid in communication with the feed circuit of the hydraulic brake cylinders through one branch 11a of a pipe 11. Liquid from the other branch 11b operates a spring-loaded piston 18 to which is attached a rod 20, the free end of which is located in the orifice 7 to vary its area. The operation of the brake cylinders causes an application of liquid pressure to the pistons 13 and 18 to increase the air pressure in the cylinder 9 and to reduce the rate of flow through the orifice 7 to enable the shock absorber to resist the increase in loading caused by the forward pitching of the aircraft due to braking action. In an alternative arrangement a normally non-rotating element of the brakes is mounted on a rotatable sleeve and is linked to the aircraft structure by a piston and cylinder unit which is connected to the pipe 11. Specification 535,135 is referred to.
Patent GB-596859-A (GB)
Title: Improvements in or relating to lubricating oils
Filed: 1944-10-13
Abstract: Mineral lubricating oils contain a small proportion of a corrosion inhibitor comprising a compound of the formula Ar-CH2 S.S.S. CH2-Ar, where Ar is an alkylated aromatic hydrocarbon radical such as an alkylated benzene or naphthalene nucleus.  Bis-(dimethyl bengyl) tri-sulphide is specified.  The lubricating oil base stocks may comprise the usual refined oils, distillates from crudes, residuals &c. and usually range from 40 to 150 seconds Saybolt viscosity at 210 DEG F.  "Heavy duty" lubricating oils compounded with detergent type additives are emphasized and the additives in this connection specified comprise Ba t-octyl phenol sulphide.  Ca t-amyl phenol sulphide, nickel oleate, Ba octadecylate, Ca phenyl stearate, Zn diisopropyl salicylate, Al naphthenate, Ca cetyl phosphate, Ba di-t-amyl phenol sulphide, Ca petroleum sulphonate, Zn methyl cyclohexyl thiophosphate, and Ca dichloro-stearate.  The compositions may contain other usual addition agents particularly defoaming agents comprising the higher alcohols having 8 or more carbon atoms and p preferably 12 to 20 carbon atoms.  Of a number of alcohols specified, lauryl alcohol, oleyl alcohol, naphthenic alcohols, and octadecyl benzyl alcohol are included, together with naturally occurring alcohols such as wool fat and sperm oil alcohols and synthetic alcohols from the oxidation of petroleum hydrocarbons. The trisulphides may be prepared by reacting compounds of the formula Ar CH2 SH with sulphur dichloride.  Full details are given of the preparation of bis-(dimethylbenzyl)-trisulphide in 3 steps, by first reacting xylene with trioxymethylene and HCl to form dimethylbenzyl chloride, then reacting the latter with NaHS to form the corresponding mercaptan, and finally reacting the mercaptan with sulphur dichloride in admixture with carbon bisulphide.ALSO:Compounds of the formula Ar-CH2.S.S.S.CH2-Ar, where Ar is an alkylated aromatic hydrocarbon radical such as an alkylated benzene or naphthalene nucleus are prepared by reacting compounds of the formula Ar.CH2SH with sulphur dichloride. Full details are given of the preparation of bis-(dimethylbenzyl)-trisulphide in 3 steps, by first reacting xylene with trioxymethylene and HCl to form dimethylbenzyl chloride, then reacting the latter with NaHS to form the corresponding mercaptan and finally reacting the mercaptan with sulphur dichloride in admixture with carbon bisulphide.
Patent GB-1432575-A (GB)
Title: Closure device for a syphon bottle
IPC: B67D1/04
Filed: 1973-04-27
Abstract: 1432575 Syphon bottle HUTOGEPGYAR 27 April 1973 [9 June 1972] 20024/73  Heading F1R The valve actuating lever 3 for operating the discharge valve 6 of a syphon bottle is removably pivoted to the head 8 which includes an inlet valve 1 on a gas cartridge connection. The lever 3 has a slot 4 engaging the pivot 5 and a slot 10 having a narrow portion 10b engaging a groove 11 on the valve 6 in normal operation. The slot 4 and a wider portion 10a of the slot 10 permit removal of the lever as shown in Fig. 2.
Patent GB-1144222-A (GB)
Title: High density recording system
IPC: G11B20/14
Filed: 1966-05-06
Abstract: 1,144,222. Self-clocking data stores. POTTER INSTRUMENT CO. Inc. 6 May, 1966 [24 May, 1965], No. 20055/66. Heading G4C. Groups of bits are recorded in respective patterns of transitions, present and absent, the number of transitions per pattern being less than twice the number of bits per group, there being at least one transition present in every adjacent pair of possible transition positions. Apparatus for decoding the recording, claimed separately, separates pulses into two groups according to their separation from respective adjacent pulses, feeding each group to a respective plurality of gates, a counter enabling a different gate of each plurality for each condition of the counter, the counter being driven in response to the groups. Data is recorded in self-clocking NRZ format on magnetic drum, disc or tape with each pair of bits being represented by a cell in which up to three flux transitions occur, as follows: where * and * * are the cases when the first bit of the next pair is 0 and 1 respectively. A transition is represented by X and no transition by-. Mode A is normally used but when 00 is recorded in Mode A, Mode B is used for the next pair of bits after which operation reverts to mode A. In this way there will never be more than one position with no transition, between two adjacent transitions. Writing (Fig. 4).-A word is gated 61 from a buffer 51 to a shift register 62. AND gates 85-92 and OR gates 84, 97 respond to the top three stages of the shift register 62, to an oscillator-driven 3-position ring counter 73 delineating the possible transition positions in a cell, and, to a mode flip-flop 95, to control a record flipflop 81 to record a cell according to the above scheme. OR gate 94 then shifts the shift register 62 by two positions to record the next cell, and so on. Reading (Fig. 5).-Pulses produced on sensing transitions pass to AND gates 101, 103 and through delay 105 to multivibrator 107. The multivibrator normally enables AND 103 but momentarily enables AND 101 instead in response to a pulse delayed at 105, so that each pulse separated from the preceding pulse by a short interval passes through AND 101 and each separated by a long interval through AND 103. AND gates 113-118 are fed from ANDs 101, 103 and from a "counter" 120 (which specifies the next transition position within the current cell, but may be one position behind in which case one count position will subsequently be skipped) to control the "counter" 120 via ORs 125, 127 and produce a pulse at 137 for each 1 bit which is the first bit of a pair, a pulse at 129 for each 1 bit which is the second bit of a pair, and a clock pulse at 141 for each cell (i.e. bit pair). The counter 120 includes 3 states A,B,C each of which enables a respective one of those of the AND gates 113-118 fed by AND 101 and a respective one of those of them fed by AND 103.
Patent GB-152821-A (GB)
Title: Improvements in or relating to the assembly of metal parts for electric or other welding, rivetting or like operations
IPC: B23Q3/154
Filed: 1919-08-15
Abstract: 152,821. Kjellberg, O. Aug. 15, 1919. Uniting by fusion; riveting. - Metal parts are assembled f o r electric or other welding, riveting, or like operations, by means of single or multiple electro-magnets acting in conjunction with positioning-devices. In assembling the plates 1, 2 for a lap joint by a two-pole magnet 3, 4, a non-magnetic abutment 7 is arranged between the plate 2 and the pole 4. The magnet poles may be provided with adjustable pivoted shoes for assembling convex or concave plates, or for angular work. The angle-joint assemblage, Fig. 7, is effected by single-pole magnets 12a, 12b and abutment blocks 7<a>, 7<b>. The two magnets may form a unitary structure, and the abutments made in one with the poles. To prevent attraction by residual magnetism, the pole shoes may be covered by thin non-magnetic material.
Patent GB-816663-A (GB)
Title: Improvements in or relating to a travelling wave electronic valve amplifier
IPC: H01J25/38
Filed: 1956-06-29
Abstract: 816,663. impedance matching. ROBERTS & ARMSTRONG (ENGINEERS) Ltd., and ARMSTRONG, J. June 28, 1957 [June 29, 1956], No. 20133/56. Class 40 (8). A travelling-wave tube is matched to an input or output waveguide by means of a probe adjustable both transversely and longitudinally within the guide in a region where it passes through the solenoidal field winding of the tube. The solenoid (not indicated in the Figures) is divided into three portions, the two end portions being spaced from the central portion to accommodate the input and output waveguides which are arranged perpendicularly to the tube 4. One (or both) of the waveguides 2 is provided with a member 7 in the form of a metallic block longitudinally movable over the broad face of the waveguide within the region of the solenoid. The block is slotted to accommodate an approximately Y-shaped member 13 which is pivoted at points 14 and carries a probe 16 arranged to extend into the waveguide through a slot 9 in the broad wall. A leafspring 17 attached to the block urges the probe into the waveguide. The depth of penetration of the probe is determined by the longitudinal position of a conical member 21 which engages the sides of a hole 20 formed in the bridge portion of the probe-carrier 13. The conical member is urged into contact with the end of a longitudinally adjustable rod 25 by means of a spring 23. The rod 25 is screw-threaded at 26 into an outer fixed tube 27 and engages, by means of a pin-and-slot mechanism 29, a further tube 28 axially fixed but rotatable within the tube 27. By this means the position of the probe is adjustable solely by rotation of the tube 28 and is unaffected by movement of the block 7. The latter adjustment is effected by rotation of a rod 33 which is threaded into a tube 31 fixed rigidly to the block. The waveguide may terminate in a matching stub whose length is determined by the position of an axially adjustable plunger 34. Instead of conical member 21 a rotatable cam may be used to actuate the probe carrier. The probe carrier itself may comprise a system of levers to vary the ratio of movement between the probe and the control mechanism.
Patent GB-154966-A (GB)
Title: Improvements in or appertaining to the supply of heat to tunnel brick driers
IPC: F27D13/00
Filed: 1919-08-16
Abstract: 154,966. Entwistle, T. Aug. 16, 1919. Tunnel kilns for drying bricks are heated by the gases from the chambers of a continuous kiln in which burning has been completed. These are connected through dampers with an auxiliary flue communicating through a second auxiliary flue and a fan with a flue supplying the gases through damper-controlled ducts beneath the drying chambers, the floors of which are open so that the gases rise around the goods conveyed through the chambers. In the drier shown, gases led from the burning chambers of a continuous kiln through dampers to a common flue pass to a flue e and a chamber f, the entry of gases and of cold air to the chamber being controlled by dampers g, h. A fan i leads the gases to a flue l having offshoots conveying the gases bv dampers m to ducts n beneath the drying chambers, the floors of which are provided with plates spaced apart to allow the gases to rise. In some cases, gases from the chambers of the kiln in which the goods are being heated before burning may be employed in addition.