baber/WOPTO huggingface dataset:
Patent GB-743319-A (GB)
Title: Improvements relating to apparatus for the measurement of high-frequency electrical energy
IPC: G01R21/00
Filed: 1953-11-26
Abstract: 743,319. H. F. voltage measuring. BIRD ELECTRONIC CORPORATION. Nov. 26, 1953 [Nov. 26, 1952], No. 32908/53. Class 37. [Also in Group XL (b)] A pick-up assembly for sampling the highfrequency energy in a coaxial transmission line comprises a coaxial arrangement of a hollow conductive body 30, a rectifier unit D having contacts 37, 38, a by-pass capacitor C3 having concentric central and peripheral terminals, and a probe 50, the assembly also including a resistor R carried by the body 30 and connected electrically by leads 55, 56 between the probe and the central terminal of the capacitor C3. The body 30 may be screwed into and out of the coaxial line to vary the capacitance C1 between the probe 50 and the inner conductor of the line. This capacitance together with the capacitance C2 existing between the probe 50 and the body 30 forms a capacitance divider which can be adjusted to give a desired voltage division. The portion of the voltage impressed across the rectifier D determines the voltage to which a galvanometer G is subjected. The coaxial transmission line (not shown) is connected by means of a terminal 12 to a non-reflective termination comprising an inner conductor 2 coated with a resistive film of carbon and an outer conductor 1 whose inner surface is curved logarithmically into contact with the inner conductor. To ensure good electrical contact the end 6 of the inner conductor 2 is coated with conductive metallic paint and is surrounded by a wedgesection metal sleeve 7 held in place by a plug 4. The rectifier comprises a germanium diode having contact pins 37, 38 received within opposite ends of a central bore in a tubular insulating sleeve 34. The inner contact pin 38 is joined telescopically to the probe 50 and the outer contact pin is received within a hole drilled axially in a conductive partition 43 of the body 30. A sleeve 46 of polythene locates the rectifier on the axis of the pick-up assembly. The resistor R is of the carbon-film type and is received within a slot 53 formed in the body 30 and in the locating sleeve 46. The outer terminal of the resistor is connected to the central contact ring (not shown) of the capacitor C3, which is of the button type. The outer, peripheral contact ring 61 of the capacitor is grounded to the body 30. A modification (Figs. 7-12, not shown) is described in which the capacitance C2 between the probe 50 and the body 30 takes the form of a button capacitor located between the probe and the rectifier D. In this modification the termination is of a type similar to that shown in Fig. 1 but is cooled by a liquid dielectric. Access to the probe 50 is sealed by means of a cap of oilresistant dielectric.
Patent GB-334437-A (GB)
IPC: F02M59/44
Filed: 1929-10-31
Abstract: 334,437. Bosch Akt.-Ges., R. Dec. 10, 1928, [Convention date]. Single-acting s u c t i o nvalveless piston pumps; waste liquid, catching and returning.-In a fuel pump of the kind comprising a plunger b which controls an inlet port c in the cylinder a, an eccentric groove and duct e are formed in the cylinder to catch leakage and return it to the inlet port.
Patent GB-1149947-A (GB)
Title: Process for the manufacture of plain bearings
IPC: F16C33/04
Filed: 1966-07-22
Abstract: 1,149,947. Bearings. GLYCO - METALL - WERKE DAELEN & LOOS G.m.b.H. 22 July, 1966 [24 July, 1965], No. 33076/66. Heading F2A. A method of making a plain bearing comprises mixing metal particles 1 and synthetic resin particles, cutting a foil from a block of the mixture, dissolving exposed metal particles at one surface of the foil to form recesses 4, and bonding the one surface to a backing 7. Bonding is effected by a bonding agent 6 which is applied to the surface to enter the recesses. The foil is then bonded to backing 7 with heat and pressure. The synthetic resin and bonding agent may be polytetrafluoroethylene and the backing steel. The metal particles are dissolved from the said surface by acid or alkali, and may also be so dissolved from the bearing surface of the layer.
Patent GB-1322063-A (GB)
Title: Carburettors for engines
IPC: F02M1/04
Filed: 1970-07-08
Abstract: 1322063 Spray carburetters HAROLD PHELPS Inc 8 July 1970 [22 July 1969] 33159/70 Heading F1B Idling mixture is supplied to the induction passage 16 downstream of the throttle valve 22 through an idling system 46, 48, 50 and the main fuel is supplied to the passage through a main metering orifice 80, under the control of the valve 76, and a restrictor valve 94 operated by a diaphragm motor 100, responsive to the pressure immediately upstream of the valve 22, to reduce fuel flow when this pressure approaches atmospheric. The valve 76 is linked to the accelerator pedal 32 which also operates an accelerator pump piston 114. A valve 54 operable by a temperature responsive actuator 56 connects a mixture passage 58 and an air passage 62 to an induction passage inlet 64 below a predetermined temperature to provide an enriched mixture for starting. The metering needles 44, 78 and 96 have a flat (45), Fig.2 (not shown), over all or part of their length. Fuel may be supplied to the main metering orifice 80 from the float chamber 15 by a pump (130), Fig.3 (not shown), which is driven by an electric motor (132). The electric motor (132) is energized from a battery (134) under the control of a diaphragm-motor operated switch (136). The diaphragm (144) is subjected to the pressure at the throat of the induction passage Venturi 18 and closes the switch (136) above a predetermined engine speed, e.g. 1000 r.p.m.
Patent GB-922985-A (GB)
Title: Improvements in or relating to fluid pressure responsive devices
Inventor: PRICE ERIC FRANCIS
IPC: G01L9/00
Filed: 1959-09-30
Abstract: 922,985. Measuring electrically. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 2, 1960 [Sept. 30, 1959], No. 33168/59. Class 40 (1). A fluid pressure responsive device comprises a straight, partially flattened and axially twisted tube 11 fixed at one end to a frame 12 providing a fluid pressure connection 14, and connected at its closed free end to a driving shaft 17 in driving connection with an output shaft 22, a potentiometer resistance element 28 on one of the shafts being associated with a wiper arm 29 mounted on the other shaft so as to traverse the resistance element 28 as the tube twists in response to pressure changes.
Patent GB-155576-A (GB)
Title: Improved manufacture of derivatives of p-aminophenol and of its o-alkyl-ethers
IPC: C07C215/76
Filed: 1920-11-24
Abstract: In the production of N-dioxypropyl-p-aminophenol, or its alkyl ethers, the process described in the parent Specification is modified by substitution of a - or b -dichlorhydrin for a -monochlorhydrin or glycide.  The chloro compound first obtained is saponified by alcoholic potash.
Patent GB-447247-A (GB)
Title: Improvements in fuzes for projectiles
IPC: F42C15/22
Filed: 1935-11-29
Abstract: 447,247. Projectile fuzes. TENNANT, W. J., 111, Hatton Garden, London.- (Schneider & Cie; 42, Rue d'Anjou, Paris) Nov. 29, 1935, No. 33209. [Class 9 (i)] Relates to projectile fuzes of the kind in which the firing mechanism and a centrifugal safety device therefor are carried by a rotatably mounted body so as to delay the arming operation of the centrifugal device, for example, as described in Specification 230,869, [Class 9 (i)]. According to the invention, this rotatable body constitutes the front part b<1> of the fuze body, the rear part a being fixed to the projectile, and the front part being detachably retained on the rear part by a nose-piece b<2> and a collar or nut b<3>. Ball bearings c, d are provided between the two parts. The firing mechanism comprises a momentum pellet e carrying the percussion cap f, and a direct-impact striker i carrying a firing pin il and covered by an easily destructible cap ,j. The safety device comprises centrifugal segments g encircled by a coil g<1>, and a sleeve h which, under the influence of a spring h<1>, bars the return of the segments after they have moved out to the armed position.
Patent GB-1131896-A (GB)
Title: Tap selector for tap changers of regulating transformers
IPC: H01H9/00
Filed: 1967-07-19
Abstract: 1,131,896. Tap selector switches; transformers. E. SCHEUBECK. 19 July, 1967 [23 July, 1966], No. 33227/67. Headings H1N and H1T. A tap selector St with stationary contacts 1, 2, 3 (Fig. 2, not shown) of each phase secured alternately in two horizontal switch planes on vertical insulating bars (33, Fig. 3, not shown) and preselected alternately step-by-step by switch bridges 35, 36 connected to the power changeover switch L through stationary slip contact rings 31, 32 and moved in a circular path, has each pre-selection step divided into two half-steps so that in the rest position of switch L, the unswitched bridge lies above or below the switched bridge and is connected thereto by a slip contact 37 secured to one bridge, e.g. 36, so that all contacts of switch L are at the same potential. One step comprises, for example, a first half during which bridge 36 pivots to connect with contact 2, an intermediate stage during which switch L changes over from contact 11 to contact 12, and a second half during which bridge 35 pivots to a position above 36. These half-steps and intermediate stage are produced by superposed Geneva wheels (41, 42, Figs. 4 and 5, not shown) driven by a two-armed pin wheel (43) provided with blocking devices (461, 452); or by side-by-side Geneva wheels driven by a single-armed cam wheel therebetween provided with a blocking device (Fig. 8, not shown); or by side-by-side pin wheels driven by a cam wheel therebetween provided with two cams and a blocking device (Fig. 10, not shown). The cam wheels may be driven through worm gearing.
Patent GB-840695-A (GB)
Title: A method of producing non-metallic coatings on articles with the aid of electric heating
IPC: F23M5/00
Filed: 1956-10-31
Abstract: <PICT:0840695/III/1> In a method of producing localized regions of non-metallic coating, e.g. of enamel, thermosetting or thermoplastic materials, silicates and the like, on one side of a plate-like article, which coating requires for its formation the application of heat, the heat is produced by passing a direct electric current between the said article, or a metal plate in contact with said article if the latter is non-conductive, constituting a cathode and an anode via a liquid electrolyte which is directed against the article or metal plate.  As shown, a liquid electrolyte, e.g. an aqueous solution of 10% sodium carbonate, is caused to contact the lower surface of a metal article 7 having a coating 8 to be heated and connected to the negative pole of a D.C. source, the electrolyte being pumped by a pump 5 from a collecting vessel 4 to a container 1 connected to the positive pole of the D.C. source. When the current is switched on, the electrolyte forms the effective anode and the metal article 7 the effective cathode and a series of thermal effects including a glow or spark discharge occurs between the two, thus heating the article 7 and the coating 8.  The heating is said to be local in effect, the temperature gradient with respect to neighbouring areas being about 500 DEG  C. to 2 cm. length.
Patent GB-323087-A (GB)
Title: Improvements in brackets for supporting lavatory basins and the like
IPC: E03C1/324
Filed: 1928-11-14
Abstract: 323,087. Banks, W. J. Nov. 14, 1928. Brackets.-A bracket 5 for supporting a lavatory basin has a sliding member 9, secured thereon bv a bolt 11 passed through slots in the bracket 5 and the member 9, with a projecting stud 12 to engage a hole in the basin. The member 9 may be reversed, so that the stud 12 projects downwards, an end lip or flange 10 engaging the front edge of the basin. The bracket is adjustably secured, as shown in Fig. 2, to a wall plug 1 by a bolt 6 passed through slots in the bracket and plug. In a modification, shown in Fig. 3, the wall plug 1 has an upstanding lip 4a with a set screw 13 to grip a depending lip 5a on the bracket.
Patent GB-792694-A (GB)
Title: Improvements in or relating to pallets for handling loads
IPC: B65D19/00
Filed: 1956-11-01
Abstract: 792,694. Platform pallets. HORST, J. VAN DER. Nov. 1, 1956 [Nov. 23, 1955], No. 33352/56. Class 78 (4). The load platform B of a pallet can be detached from the base A. In the four-way entry pallet illustrated the load platform B has cross members 7 formed with projections 8 which take into corresponding recesses 6 in cross members 3 on the base A. Securing means may prevent the load platform B being lifted from the base A and a series of load platforms B of different sizes may be used with a single base A.
Patent GB-206724-A (GB)
Title: An improved tank filling indicator
IPC: G01F23/18
Filed: 1922-12-07
Abstract: 206,724. Stevenson, J. Dec. 7, 1922. Alarms, high-water.-A high-water level alarm comprises a cylinder A open to the pressure of the head of water and containing a spring-loaded piston B. The rod of the piston extends downwards and terminates in a plate sliding within an interfitting frame H included in an electric circuit comprising a solenoid L. The head of liquid causes contacts on the plate to close the circuit and energize the solenoid K. The armature L of the solenoid is pulled forward and causes the bell-crank lever N to rock and close a second circuit including an alarm bell. Specification 197,812 is referred to.
Patent GB-322869-A (GB)
Title: Improvements in or relating to staple driving machines
IPC: B25C5/16
Filed: 1928-11-15
Abstract: 322,869. White, A. E., (Hotchkiss Co., E. H.). Nov. 15, 1928. Stapling, hand tools for.-In a bench type stapling or tacking machine the driving plunger is moved for its driving stroke by a spring which is put under compression and then released by a lever and ratchet wheel. The driver 25 is carried by a block 28 slidable in a guideway 27. A driving spring 32 is arranged between the block and an adjustable screw 34. The block is raised, to compress the spring, by a ratchet wheel 41 the teeth 43 of which engage the under-side 44 of the block. The wheel is rotated step-by-step by means of notches 50, a pawl 45, and a hand-lever 47 provided with a return spring 52. A cushioning spring 31 is arranged below the block to limit its descent. The staples 13 are fed forward on the guide 12 by a spring 17 and pusher 14, the spring being connected to a stud 19 which can easily be removed from the pusher. The front plate of the machine is in two separatelyremovable parts 37, 40. A stop-wall 55 engageable by a shoulder 26 on the driver further acts to limit the driving stroke.
Patent GB-1151822-A (GB)
Title: Cleansing Tablets
Inventor: KRUSIUS EWALD HENRY
IPC: C11D3/395
Filed: 1967-07-21
Abstract: 1,151,822. Cleansing tablets. FMC CORP. 21 July, 1967, No. 33540/67. Heading C5D. A cleansing tablet comprises (1) 2-95% of particulate sodium chloride, preferably in dendritic form having a particle size of 10-325 mesh, (2) at least one of the following: (a) 5-98% of a polyphosphate which may be sodium tripolyphosphate, (b) 0À5-20% of an anionic or non-ionic synthetic detergent, which may be an alkyl benzene. Sulphonate wherein the alkyl group has 9-15 carbon atoms, and the non-ionic detergent may be the reaction product of polyoxyethylene with an organic hydrophobic compound such as polyoxypropylene, alkyl phenol &c. and (c) 0À5-98% of chlorocyanuric compound.
Patent GB-638235-A (GB)
Title: Electric cooker
IPC: F24C15/10
Filed: 1947-12-19
Abstract: 638,235. Elect:ic cookers. VRBECKY, F. Dec. 19, 1947, No. 33585. Convention date, Sept. 20, 1946. [Class 39 (iiij] An electric cooker 1 has two or more cooking plates 2 and 3, at least one of the plates 3 being detachable so that it can be placed on the top of a pot 4 on a fixed plate 2. An insulating case for the pot' 4 and if desired for one of the plates, may be provided.
Patent GB-969412-A (GB)
Title: A method of reducing the thickness of metal
Inventor: SAXL KAREL
IPC: B21B13/18
Filed: 1962-09-03
Abstract: 969,412. Rolling. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. Sept. 3, 1963 [Sept. 3, 1962], No. 33686/62. Heading B3M. A method of rolling strip from plate at a temperature below its recrystallization temperature in a pendulum mill, is characterized by reducing the resistance to deformation of the part of the plate being worked to a low level by generating enough heat from the rolling energy due to reducing the plate in one pass by at least 75% at a mean roll speed, expressed as rate of reciprocation of the axis of each roll, of at least 100 feet/min., this being at least five times the speed of the reduced strip. Work hardening of the strip is avoided under these rolling conditions. In order to prevent overloading of the mill by rolling at room temperature a workpiece which has not yet been locally softened by the heat of working, the rate of roll oscillation or preferably the workpiece feed rate can be adjusted. Alternatively, a starting piece of softer metal can be welded to the front of the workpiece, or in the case of magnesium, the leading edge can be preheated. Tapering of the leading edge also helps when commencing rolling.
Patent GB-842665-A (GB)
Title: Polystyrene production
Inventor: TWADDLE WARREN W
IPC: C08F12/08
Filed: 1957-10-29
Abstract: Polystyrene is made by polymerizing a prepared solution of styrene in an inert hydrocarbon liquid e.g. xylene, of boiling point close to that of styrene, under controlled reduced pressure, at a temperature in the range of 50 to 100 DEG C. in the presence of a finely divided sodium catalyst, removing the sodium from the polymer solution, removing the solvent, and if desired subsequently extruding the polystyrene as ribbon or rod and pelletizing it by conventional methods.  The solution of styrene is preferably obtained by dehydrogenating ethylbenzene contained in a C8 aromatic stream obtained from hydroformed naphtha and substantially freeing the resulting solution of styrene monomer from tar and water.  Natural and/or synthetic rubber may be mixed with the polystyrene either during or after polymerization.  The molecular weight of the polymer may be controlled by the addition of an ether modifier such as methylethyl or dimethylether.  The solvent is preferably removed by flash distillation and subsequent vacuum treatment.  The whole process i.e. from the preparation of the styrene in solution to the pelleting of the polystyrene may be effected continuously and the Specification includes a flow diagram showing this continuous process.
Patent GB-620582-A (GB)
Title: Improvements in and relating to apparatus for indicating time intervals
IPC: G05B19/02
Filed: 1945-12-14
Abstract: 620,582. Switching systems for consuming devices. TELEPHONE MANUFACTURING CO., Ltd., SMITH, S. J., and TERRY, R,. ST. G. Dec. 14, 1945, No. 33901. [Class 38 (iv)] [Also in Groups XXXVII and XXXVIII] In a time-control device for effecting a recurrent cycle of operations of variable duration, a shaft 23, coupled to a motor 10 through a variable - speed gear (see Group XXXVIII), has mounted thereon a pair of cams 27, 28 which control contacts 39 and 40, whereby the current source is switched to the load for predetermined portions of the variable cycle. In the initial position the bent-over tip of armature 33 rests in the slot 26a of cam 26. Flap 29, which as shown, covers the slot under the action of a spring, is displaced by the armature 33. The cycle is initiated by operating the push-button 35, whereupon relay 34 is energized so that the armature 33 is lifted from the slot, contacts 38 are closed, and motor 10 commences. The flap 29 is now forced against the stop 32, while the tip of the armature rides in an elevated position on the periphery of the cam 26 and so keeps contacts 38 closed. After a complete rotation the armature 33 pushes aside the flap and falls once more into the slot 26a, thereby opening contacts 38 and stopping the motor. The operations are performed by cams 27, 28, which control the switching of current to a load device (not shown). The circuit is opened and closed by the parallel contacts 39, 40, the cams being so arranged that contact 39 always operates before contact 40, whereby, as may be seen from the figure, a rapid switching action is always achieved. An additional pair of cams 47, 48 may be used to effect a further cycle of operations.
Patent GB-194424-A (GB)
Title: Improvements in electro-magnetic apparatus for recording sound
IPC: H04R9/06
Filed: 1921-12-16
Abstract: 194,424. Sykes, A. F. Dec. 16, 1921. Addition to 160,223, [Class 40 (v), Wireless signalling &c.]. Transformers.-Consists in providing in soundrecording apparatus, as claimed in the parent Specification, an intervalve transformer comprising in addition to the usual windings a tertiary winding forming part of a circuit containing resistance, inductance, or capacity, or combinations thereof. Such a transformer, which is of the kind described in Specification 190,840, can be used in place of the inductance, resistance, and condenser distorting devices described in the parent Specification. The general circuit arrangement for the complete apparatus is shown, comprising inter alia a system of thermionic valves 42, 44, 46, the special transformer 163, being placed in the anode circuit of the valve 44 as shown. The tertiary winding 166 of this transformer is in series with a variable inductance 167, a variable resistance 168, and, ii desired, a condenser, not shown. The equivalent additional resistance in the anode circuit due to the tertiary winding is small compared with the valve resistance. A battery may also be included in the tertiary circuit.
Patent GB-1260358-A (GB)
Title: Dry decalcomania
Inventor: TORDJMAN ELIE
IPC: B44C1/16
Filed: 1969-07-04
Abstract: 1,260,358. Transfers. E. TORDJMAN. 4 July, 1969 [7 Aug., 1968], No. 33911/69. Heading B6C. A pressure-sensitive transfer comprises a support sheet 1, with indicia 2 printed on it, and a layer 3 of a pressure-sensitive adhesive containing two solvents which penetrate the indicia 2 by electrostatic action between one solvent and the material of the indicia, and form a parting layer 4 between the indicia and the support sheet 1. When the transfer is applied to a receiving surface the indicia and the adhesive overlying them adhere to the receiving surface and the remainder of the adhesive is left adhering to the support sheet 1. Examples of support sheets, indicia and adhesive compositions which achieve this effect are given.
Patent GB-1061901-A (GB)
Title: Improvements relating to thermoplastic tiles and similar surface coverings
Inventor: SAUL WALTER
IPC: B29C43/00
Filed: 1962-09-05
Abstract: 1,061,901. Moulding thermoplastic tiles. DUNLOP SEMTEX Ltd. Aug. 27, 1963 [Sept. 5, 1962], No. 33940/62. Heading B5A. Tiles, of a thermoplastic material based upon, e.g. polyvinyl-chloride, and having a terrazzo effect on one face and an inter-fused effect upon the other, are compression moulded between a first plate having a temperature within or above the softening range of the thermoplastic material and a second plate having a temperature below said range. In one embodiment the material, in comminuted form, is moulded between heated press platens in a double mould comprising a separator plate located between two end plates. The separator plate is preheated to a temperature above the end plates and the moulding performed, the mould being subsequently transferred to and cooled under pressure in a press having cooled platens. The comminuted material may comprise chips of different colours or comprise multi-coloured chips, or may contain a metallic powder such as aluminium or aluminium-bronze.