baber/WOPTO huggingface dataset:
Patent GB-627942-A (GB)
Title: Improvements in and relating to electric pulse signalling systems
IPC: H03K9/00
Filed: 1947-09-01
Abstract: 627,942. Pulse modulation. CHERRY, E. C., and RAO, V. N. Sept. 1, 1947, No. 24144. [Class 40 (v)] A signal sent by modulation of a series of recurrent pulses is recovered partly by a lowpass filter, and partly by feeding the pulses into one or more circuits tuned to the pulse recurrence frequency or to harmonics thereof, and rectifying the resulting oscillations. The modulated pulse train may be analysed into a signal frequency band A, Fig. 2, and a series of bands B, C ... of double the width of the band A centred on the pulse recurrence frequency f<1> and the harmonics 2f<1>, 3f<1> .... When the received pulses are applied to the grid of the pentode valve V, the signal band A is taken off from the anode resistor R0 by a low-pass filter LOCO, while the bands B, C ... are taken off by band-pass filters L1, C1 ; L2, C2 connected across anode resistors R1, R2. The band-pass filters are associated with rectifiers D1, D2 and condenser-shunted load resistors R1<1>, R2<1>. The signal is taken off across the resistors R0<1>, R1<1>, R2<1> in series. The system gives increased signal strength and improves the signal to noise ratio.
Patent GB-532214-A (GB)
Title: Improvements in and relating to nasal douches
IPC: A61H35/04
Filed: 1939-08-22
Abstract: 532,214. Nasal douches. CATTANACH, H. T. Aug. 22, 1939, No. 24157. [Class 81 (ii)] A nasal douche comprises tubes d attached to a band a which encircles the head of the user. The nozzles d<SP>1</SP> are inserted in the nose and the other ends of the tubes are introduced into a vessel containing antiseptic liquid.
Patent GB-1110960-A (GB)
Title: Hydraulic multi-circuit braking installation with an auxiliary power device
IPC: B60T13/57
Filed: 1966-05-31
Abstract: 1,110,960. Hydraulic brakes. ERNST HEINKEL A.G. 31 May, 1966 [13 Dec., 1965], No. 24220/66. Heading F2F.  An hydraulic braking system comprises an auxiliary power device preferably of the vacuum suspended servo type which co-operates with the first piston 2 of a series of spring loaded pistons 2, 3 housed in a master cylinder 1. Each piston 2, 3 provides pressurized fluid to a brake circuit I, II. Fluid is supplied to the master cylinder from a reservoir 8, the supply being cut off by actuation of the piston before any appreciable pressure is attained to prevent piston seals 201, 301 from being forced into the supply passages 9, 10. A rod 17 connected to the brake pedal is integral with or engages a valve member 173 which co-operates with the inner, spring loaded periphery of a diaphragm of the auxiliary power device to maintain vacuum in the chamber C. The valve member 173 is provided with a rod which carries two pistons 171, 172 which sealingly slide in bores in the pistons 2, 3 respectively. These pistons 171, 172 provide braking pressure reaction on the brake pedal, this reaction being maintained even if one of the hydraulic brake circuits fails. The pressure applying body 5 of the power device carries a valve seat 51 for lifting the inner periphery of the diaphragm away from valve member 173 to seal chamber C from a chamber F and to allow air to enter chamber F and thus actuate the power device.
Patent GB-518269-A (GB)
Title: Improvements in or relating to electric switches, particularly for battery lamps
Filed: 1938-08-17
Abstract: 518,269. Switches for battery lamps. PLATERS & STAMPERS, Ltd., (Katzinger Co., E.). Aug. 17, 1938, No. 24232. [Class 38 (v)] In a switch, particularly for an electric torch, the slidable operating member 2 has two bent-over side lugs 6 which pass through a hole in the casing 1 and engage behind the movable contact member 8. The member 8 has the form shown in Fig. 3 and when the switch is assembled is adapted to be slid downwards, till the recesses 11 snap into engagement with the sides of the lugs. In operation, the members 2 and 8 move together to bring the member 8 into or out of engagement with the metallic reflector 13 thus completing the circuit to the lamp 14.
Patent GB-689680-A (GB)
Title: Improvements in or relating to the pneumatic conveyance of materials
IPC: B65G53/06
Filed: 1951-10-18
Abstract: 689,680. Pneumatic conveyers. ALDER, G. A., and RAULT, R. Oct. 18, 1951. [Oct. 18, 1950] No. 24347/51. Class 78 (i). Steam or air at high pressure is supplied to the conduit 1 along its axis by a pipe 6 and induces a flow of atmospheric air through the apertures 7, the arrangement being such that material supplied from the hopper 2 enters the induced current of air before its combination with the high pressure steam or air. The apertures 7 are formed in a disc 5, which closes the end of the conduit and carries a rotatable apertured ring 8 which controls the admission of air. The disc 5 and pipe 6 are complementarily screw-threaded to permit the longitudinal adjustment of the latter member. The nut 9 which locks the pipe 6 in position may also lock the ring 8. A removable ring 12, Fig. 4, is placed between the flanges of the hopper and the connection 10. The size of the ring selected depends on the nature of the material conveyed. This ring may be.replaced by a perforated slide. Additional high pressure air, &c. may be supplied through nozzles 15 and atmospheric air through regulatable apertures 14. Water may be supplied through a pipe 23 and chamber 22 to jets 24 opening into the conduit. The hopper may be replaced by a suction.pipe 17 provided with means 19, 20 for controlling the flow of air.
Patent GB-687258-A (GB)
Title: Improvements in safety switches for electrically heated appliances
IPC: H01H73/30
Filed: 1951-10-18
Abstract: 687,258. Thermal switches; switches, partly electromagnetic. RHEOSTATIC CO., Ltd., and CHINN, A. J. Oct. 18, 1951, No. 24354/51. Class 38 (v) The movable contact 16 of the switch is carried by a resilient member 7 which also carries a U-shaped armature 17 and is actuated by a bimetal strip 3 through an insulating member 21 and an adjustable screw 22. The contacts 16, 20 are normally held closed by the action of a magnet 18 on the upper limb of the armature, but on deflection of strip 3 they are opened with a snap-action and held open by the action of the magnet on the lower limb of the armature. The switch is reclosed by depression of a push-button 10.
Patent GB-533965-A (GB)
Title: Improvements in apparatus for coating paper with pitch or the like
Filed: 1939-08-24
Abstract: 533,965. Coating webs. EDNELL, F. O. Aug. 24, 1939, No. 24366. [Class 140] In apparatus for coating paper webs with pitch or the like in which the paper passes around a rotating roll, the coating bath is provided with a trough having an adjustable end wall over which the coating material flows on to the web. Pitch in a receptacle 1 of U-shaped cross section is heated by electric heaters 4. The wall of the receptacle 1 ends short of its side portion 3 to form a trough 7 open against a roll 5 over which paper 6 passes. The end wall of the trough is formed by a lower flange 8 of a U-shaped frame 9 having an opening 9a for the pitch. The trough 7 is provided with side walls which are laterally adjustable by a hand wheel 14, pinion 15, and rack 12. The receptacle 1 is carried by yokes 17 depending from shaft 16 of roll 5 so that it may be tilted. The side portion 3 of the receptacle 1 is attached to an arm 20 which cooperates with an arm 21 fixed to a frame 21a. By means of a hand wheel 26, pinion 25 and rack 27, a shaft 22 attached to the arm 21 is caused to move in a slot 23 in the arm 20 to adjust the level of the flange 8 in relation to the level of the pitch by tilting the receptacle 1 and the distance of the flange 8 from the roll 5 is also adjusted by the eccentricity of part 24 relative to shaft 22.
Patent GB-1118721-A (GB)
Title: Coupling device for hoses, pipes, and conduits
Inventor: WILLIAMS PETER GILLINGHAM
IPC: F16L37/44
Filed: 1963-06-19
Abstract: 1,118,721. Pipe couplings. BRITISH PETROLEUM CO. Ltd. and AVERY-HARDOLL Ltd. 17 Dec., 1964 [19 Dec., 1963], No. 24377/63. Heading F2G. A coupling part 8, provided with a valve 1, and a mating coupling part are adapted to provide a fluid connection between them when brought together in use, the connection being partly provided by a passage 3 in the valve which allows fluid to flow from the part 8 to the mating part when the fluid pressure in the latter is less than a datum pressure in the part 8. Inter-engagement, e.g. by a bayonet connection, of the two parts causes the valve to be moved from the closed to the open position thereof, the energy for such movement being provided by the pressure of the fluid in the part 8, and the direction of such movement being the same as that of the fluid flow through the part 8 when the valve is fully open. The passage 3 is formed in a slide movable in the valve stem 5, the flow of fluid in the passage being controlled by an auxiliary valve 4 and the passage extending into a space above a pilot piston 11 held in permanent contact with the valve by a datum spring 73 whose compression is adjustable by an adjuster 16. The valve stem 5 is mounted coaxially through a housing 12 in which moves a piston 7 to form a chamber 9. When the coupling parts are engaged the valve 4 is depressed so that pressure fluid is bled from the chamber 9 through ports 17, 19 and passage 3 to the mating coupling part and the valve 1 is opened by the line pressure exerted in the surface 23 of piston 7. The valve remains open so long as the pressure at the face of the mating coupling part remains less than the datum setting; if that pressure should rise, spring 73 causes slide 10 to move so that chamber 9 is connected to the line pressure space via: ports 14, an annular space 13, and ports 15 so that fluid flows back to chamber 9, when the piston 7 moves back and the valve closes. If fluid flowing through the coupling is stopped, e.g. by a valve externally of the coupling, full closure of the valve 1 occurs. There is provided an interlocking pin and cam means, Figs. 3 and 4 (not shown) which prevent uncoupling of the parts while the valve is open.
Patent GB-1217224-A (GB)
Title: Electrical impedance networks
Inventor: ANTONIOU ANDREAS
IPC: H03H11/42
Filed: 1968-05-22
Abstract: 1,217,224. Positive impedance converters. POST OFFICE. 22 July, 1969 [22 May, 1968], No. 24391/68. Heading H3U. An impedance network, e.g. a gyrator, comprises two differential amplifiers DA1, DA2 interconnected between an input 1, 1<SP>1</SP> and an output 2, 2<SP>1</SP> with the output of each amplifier connected to both inputs of the other, the connections being such that the impedance seen at 1, 1<SP>1</SP> is the inverse of that at 2, 2<SP>1</SP>. If R 5 = R 7  = R 3 R 6 /R 4  then Z in =R<SP>2</SP> 5 R 2 /R 1 Z L , where Z in =impedance seen at 1, 1<SP>1</SP>, Z L  = impedance connected across 2, 2<SP>1</SP>. In a modification, Fig. 2 (not shown), R 7  is connected between 2, 2<SP>1</SP>. The same relationship between Z in  and Z L  may be obtained by making R 5 = R 3 R 6 /R 4  = R 1 R 7 /R 2 .
Patent GB-821590-A (GB)
Title: Improvements in or relating to two-speed axle drive systems for vehicles
IPC: F16H3/64
Filed: 1957-08-01
Abstract: 821,590. Change-speed gearing. EATON AXLES Ltd. Aug. 1, 1957 [Aug. 13, 1956], No. 24409/57. Addition to 813,031. Class 80 (2). In the two-speed axle of the parent Specification, the reaction of the epicyclic gear at low speed is taken by a plate 104 bolted to the casing and having a row of internal teeth 112 engageable with a row of external teeth 114 on the clutch collar. The plate 104 has an external cylindrical surface 124 which locates within a bearing adjusting ring 122 and ensures that the securing bolts are stressed in shear. The bearing adjusting-ring 122 is locked by a key carried in the bearing-cap and engaging slots in the rings.
Patent GB-443239-A (GB)
Title: Improvements in or relating to addressing machines
IPC: B41L47/18
Filed: 1934-08-24
Abstract: 443,239. Addressing machines. ADDRESSOGRAPH - MULTIGRAPH, Ltd., Oxgate Lane, Cricklewood, London, and BATTEY, A. P., Whitfield, Bridle Road, Eastcote, Middlesex. Aug. 24, 1934, No. 24432. [Class 100 (ii)] Relates to addressing-machines of the type wherein printing-plates carrying information cards are fed in succession to printing position and consists in so arranging the plate-feeding mechanism that the leading plate receives its final movement in two stages, in the first of which the spacing between that plate and the next following plate is reduced while in the second stage the spacing is restored, the object being to facilitate inspection of each card when the plate carrying it approaches printing position. Printing-plates, of which three, A, A<1> A<2> are shown in Fig. 1, are fed along a guideway by pawls 15, Fig. 4, mounted on a pair of reciprocating carrier bars 11. The spacing between the first pair of pawls and the second pair is greater than that between the second pair and the third pair, whereby the leading plate A is fed less than the normal distance and pauses in such a position that an information plate C on the plate is visible through a gap 20 in a guide plate 21. A pawl 22 actuated by a lever 23 rocked about a pivot 24 by a cam 27 adjustably mounted on an oscillating lever 26 subsequently completes the movement of the plate A into printing position in engagement with front stops 18. The address-plate track is slightly inclined at 12<a> to facilitate engagement of the pawl with the plate.
Patent GB-241186-A (GB)
Title: Process for the treatment of the seed of the carob-tree or of any other appropriate plant to extract the gum in its liquid or viscous state for subsequent transformation into a dry product capable of being pulverized
IPC: C08B37/14
Filed: 1925-10-01
Abstract: In a process for extracting gums from the seeds of plants, particularly from those of the carob-tree, the seeds are separated from their shell or skin by submitting them, in dry condition, to the action of rollers and crushers.  The endosperms are then heated, preferably in a rotary oven, until they attain a golden brown colour, and are then thrown into about twenty times their weight of boiling water, in which they are stirred.  The viscous product is pumped to filter or sieve machines, and the clear filtered gum is dried in a hot-air apparatus.  The dried product is finally ground.
Patent GB-1400274-A (GB)
Title: Recording supports and reproduction apparatus
IPC: G11B27/10
Filed: 1972-05-24
Abstract: 1400274 Video recording and playback AGFA-GEVAEBT AG 24 May 1972 [26 May 1971] 24492/72 Heading G5R A rotary disc 1 carries at least one video recording and at least two sound recordings spaced therefrom. The sound recordings may be superimposed on a single spiral track as modulations of different carrier frequencies or may, as shown, occupy separate tracks 6 to 9, each spaced by the same amount from its associated video track 2 to 5 which may be circular to yield a still picture or spiral for a moving picture. The recordings may be optical or topographical with lead-in grooves 4a, 4b. The playback heads 14, 19 may be moved together or independently by means of leadscrews 15, 24 driven by electric motors 17, 23 and may be  lifted from the record disc 1 by electromagnets 14, 19. In the case of superimposed sound recordings, the required carrier frequency for playback is selected according to the position of the video playback head. A plurality of pairs of playback heads may be operative simultaneously, Fig. 6. Optical recording may be effected by using a disc 1 of partially translucent material and varying its thickness by embossing. Reference has been directed by the Comptroller to Specification 1,298,794.
Patent GB-223588-A (GB)
Title: Improvements in and relating to bolted flanged joints and method of making the same
IPC: F01D25/24
Filed: 1924-10-16
Abstract: 223,588. British Thomson-Houston Co., Ltd., (Assignees of Doran, J. H.). Oct. 18, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Bolts; bolting.-A bolt for use in cases where the joint to be bolted must be very tight, such as the flanged joint of a turbine casing, is provided with an axial hole 9 to accommodate an electrically heated resistance so that the bolt can be expanded before the nuts 13 are tightened up. A joint so formed can be readily opened by re-heating the bolt before unscrewing the nuts.
Patent GB-1485988-A (GB)
Title: Silencer for ventilation and like ducts
IPC: F24F13/24
Filed: 1975-05-22
Abstract: 1485988 Silencers H H ROBERTSON CO 22 May 1975 [4 June 1974] 24635/74 Heading F1B In a silencer, Fig. 5, replacable sound absorbing pads 21 are located between an inner cylindrical perforate wall 20 and a two piece longitudinally hinged removable outer cover 41, 40 secured by releasable fasteners 43, 44. The sheet metal cover may be detachable or held captive at the hinge line 42. The cover 22, Fig. 2, may alternatively be of flexible material e.g. nitrile rubber, rubber impregnated asbestos cloth &c., secured together by an over-centre fastener which draws rods 25, 26 in the edge of the material together. Alternatively straps with quick release buckles may be used. The end rings 11, 12 are welded to strip spacers 13 and the inner wall 20 tack welded to the rings and the spacers. One of the spacers may be flanged so as to provide a surface to which the cover may be made captive and the end rings may be designed to include flanges 3, 5, permit units to be bolted together.
Patent GB-713672-A (GB)
Title: Improvements in or relating to welding annular articles
Inventor: OULIANOFF GEORGE
IPC: B23K11/20
Filed: 1951-10-22
Abstract: In butt welding an annular austenitic steel member of higher co-efficient of expansion (18 x 10-6 DEG C.) to an annular steel member of lower co-efficient (12 x 10-6 DEG C.) wherein a spigot is formed on the austenitic member to fit within the other member, the austenitic steel has the following percentage composition:-carbon 0.39-0.45, silicon 1.4-1.7, manganese 0.65-0.75, nickel 13,25-14.25, chromium 13.0-14.0, tungsten 2.5-3.0, molybdenum 0.4-0.6 optional, sulphur and phosphorus 0.3 maximum, iron remainder.
Patent GB-203525-A (GB)
Title: Improvements in or relating to lubricators or grease boxes of the stauffer type and the like
IPC: F16N11/02
Filed: 1922-09-12
Abstract: 203,525. Button Manufacturing Co., Ltd., and Dutton, A. H. Sept. 12, 1922. Grease cups of the Stauffer type. A cap 1 slides on a smooth cylindrical surface on the body 2, and a central stud 6 carried by a cap screws into the discharge passage 3, a flat 8 on the stud allowing the grease to pass from the cap to the outlet 5. A spring 9, Fig. 5, lying in a recess in the body 2 has a central arm 10 bearing against the flat 8 to prevent motion under vibration and to act as an indicator when the cap is being screwed down. The lubricator may be screwed on to the end of a shackle bolt in place of the usual head, being retained by a transverse split pin.
Patent GB-599806-A (GB)
Title: Improvements relating to ceramic compositions
IPC: C04B33/13
Filed: 1944-12-11
Abstract: A composition for use in forming ceramic masses by slip coating (see Group V) consists of titanium dioxide or a prefired titanate of a divalent metal or a mixture thereof and from 0.005-0.5 per cent. by weight based on the weight of the titanium compounds of a colloidal alkali metal pyrophosphate or, alternatively, from 0.005-0.5 per cent. by weight of a water-soluble or water-miscible alkaline material of from 0.005-0.5 per cent. by weight of a water-soluble colloid, the weights being based on the weight of the titanium compounds.  In one example, 100 grams of a prefired titanate of a divalent metal such as Be, Mg, Ca, Sr, Ba, Cd, Pb, Zn or mixtures thereof, 900 grams of heavy grade TlO2, 0.5 grams of Na4 P2O7 and 210 grams of water are mixed, poured into moulds, dried, removed and fired particularly as described in Specification 541,750.ALSO:In a method of slip casting, to a mixture of titanium dioxide or a prefired titanate of a divalent metal or both and from 0.005-0.5 per cent. by weight based on the weight of the titanium compounds of a colloidal alkali metal pyrophosphate, having a formula between M4P2O7 and M6P4O13, is added not more than 22 per cent. by weight of water based on the solids to form a slurry which is poured into a mould. Alternatively, in place of the alkali metal pyrophosphate there may be used from 0.005-0.5 per cent. by weight of a water-soluble or water-miscible alkaline material and from 0.005-0.5 per cent. by weight of a water-soluble colloid, the weights being based on the weight of the titanium compounds. The alkaline material is a monobasic material giving in water an OH ion concentration of at least 1.0 x 10-5 such as the alkali hydroxides, ammonium hydroxides, primary, secondary, tertiary or mixed alkyl or substituted alkyl amines, substituted amines known as "onium" or "oxonium" compounds such as ethyl or methyl ammonium hydroxide and nitrogen heterocyclic aromatic compounds such as piperidine.  The water-soluble colloid used is preferably organic and examples are starches generally, dextrin, albumin, serum albumin, blood serum, tannins, tannic acid, gelatine, glue, agar agar, alginic acid, kelp extracts, humus and compost extracts, extracts of decayed leaves, some proteins, molasses, gums such as arabic and tragacanth, pectins and glycogens. In one example 100 grams of a prefired titanate of a divalent metal such as Be, Mg, Ca, Sr, Ba or mixtures thereof, 900 grams of heavy grade TiO2, 0.5 grams of Na4P2O7 and 210 grams of water are mixed, poured into moulds, dried, removed and fired particularly as described in Specification 541,750.
Patent GB-1356017-A (GB)
Title: Flame spraying plastics
IPC: B05D5/08
Filed: 1971-04-19
Abstract: 1356017 Flame spraying powders METCO Inc 19 April 1971 [3 March 1970] 24801/71 Heading C3R [Also in Division C7] A flame spray powder comprises a mixture of 5-99% metal powder with a polyimide, polyamide-polyimide, polyester imide or aromatic polyester plastics powder stable above 500‹ F. The metal powder may be Al, Ni or their alloys, Cu, bronze, babbit or stainless steel and the preferred plastics are aromatic polyesters formed from para hydroxybenzoic acid, e.g. poly-(para-oxybenzoyl) esters and poly-(paraoxytoluoyl) esters. The powder is formed by mixing together the constituent powders or by coating the plastics powder with metal or coating the metal powder with plastics. The preferred powder size is - 100 U.S. mesh + 3 microns and spraying is effected with a plasma spray on to steel, stainless steel, Al, Cu or its alloys, Ni alloys, Co alloys, Ti, ceramics, plastics, fibreglass, cloth or wood.
Patent GB-654496-A (GB)
Title: Improvements in or relating to cooling systems for vehicle wheel brakes
IPC: F16D65/78
Filed: 1948-09-23
Abstract: 654,496. Cooling brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Sept. 23, 1948, No. 24868. [Class 103 (i)] To improve the cooling of brakes in vehicles, particularly aircraft, an air deflector is attached to the non- rotatable portion of the wheel assembly so as to be movable from a closed position, in which it lies substantially flush with the wheel rim, to an open position in which it acts to deflect air through the wheel hub during forward movement of the aircraft. As shown in Fig. 2, the deflector takes the form of a circular plate 12 hinged vertically to a part 11 secured to a bracket 7 mounted on an extension 8 of the non-rotatable axle 6. The plate 12 has an inclined lip 13, which when the wheels are lowered, is caused by the air-stream to pivot the whole plate 12 about its hinge to the position shown dotted in which it deflects air through the hub. The plate 12 is normally held flush with the wheel rim by the spring- urged rod 17. As shown in Fig. 4, the deflector comprises a series of part-spherical plates 37a, 37b, 37c, 37d, 37e that may be telescopically extended or retracted by means of a doubleacting fluid-operated jack 35, 36. As shown in Fig. 6, the air-scoop 42 also acts as a fairing when the wheel assembly is retracted into the wing or fuselage.