baber/WOPTO huggingface dataset:
Patent GB-1359682-A (GB)
Title: Phase modulating devices
IPC: H01H36/00
Filed: 1971-07-28
Abstract: 1359682 Electrophonic musical instruments MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 July 1971 [29 July 1970 7 Aug 1970 18 Sept 1970 20 Nov 1970] 35505/71 Heading G5J A phase modulating device for a musical instrument comprises a reactance-resistance phase shifting circuit formed by capacitor C and resistor 7, Fig. 1. Switching means 6 is pulsed on and off by control means 16, the ratio of on to off periods, T ON , to T OFF , being controlled by modulating source 19. The circuit is completed by an amplifier formed by transistor 11 and resistors R 1 , R C  and B E . By pulsing switching means 6 the transfer function, or characteristic, of the shifting circuit and amplifier is modified by a factor T ON /T ON +T OFF  in such a way that variation of the factor by source 19 varies the phase difference between input and output signals. The switching means is preferably a semiconductor device as it is switched at greater than twice the greatest frequency of the input signal. Other embodiments (Figs. 4 to 17, not shown) utilize diodes, bipolar transistors or field effect transistors for the switching means. The embodiments of Figs. 4 and 7 have control means circuitry which is explained in detail. Both utilize an oscillator (50) producing a sawtooth, sinusoidal or exponential waveform (Fig. 6, not shown). The oscillator signal is mixed with a modulating signal from source (19) in a comparator circuit (60) which produces pulses of varying width (Fig. 5, not shown) according to the modulating signal. The pulses are then passed to successive stages which drive the switching means. Figs. 18, 19 (not shown) illustrate two forms of oscillator suitable for the device, producing triangular and exponential waveforms respectively, both oscillators utilizing Schmitt trigger circuits. To provide a wide range of phase shift control, several phase modulating devices may be cascaded (Fig. 20, not shown), each device being coupled to the next through an emitter follower circuit, All the devices are controlled simultaneously by one modulating source (19) and control means (16). The embodiment of Fig. 20 utilizes diodes (33), (34) as switching means. Figs. 21 and 22 (not shown) illustrate phase modulating circuitry for use in a musical instrument. In Fig. 21 a signal applied at 401 is passed through high pass filter 402 and low pass filter 403. The signals from filter 402 pass through phase shifting means 404 and 406 which are controlled by means 405, 407 respectively. The control means 405, 407 are fed with modulating signals from source 414 through a phase splitter 415 so that phase shifting means 404, 406 modulate the signals in opposite phase. The phase shifted high frequency signals are combined with the low frequency signals from filter 403 in a resistor network (408)-(411). The embodiment of Fig. 22 utilizes a single control means (405) but performs the same function.
Patent GB-906317-A (GB)
Title: Impermeable sheeting
Inventor: AMAT SANTIAGO DE ZULOAGA
IPC: B32B27/00
Filed: 1960-10-18
Abstract: 906,317. Impermeable sheeting. COMERCIAL E INDUSTRIAL QUIMICA DE BARCELONA S.A. Oct. 18, 1960, No. 35605/60. Class 140. A composite comprises at least one sheet of flexible synthetic or natural resinous material, each surface of which having applied thereto at least one coat of asphaltic pitch containing from 15 to 30% by weight of the product resulting from the saponification, at a temperature not below 300‹ C., of tar, of stearine and of fatty acids by means of a barium compound. The composite may be made by homogeneously mixing the asphaltic pitch, e.g. any modified or unmodified asphalt derived from the distillation of petroleum, in particular, oxidized asphalt, oxy-asphalt or polymerized asphalt, with the saponification product, and applying the mixture to the sheet. The sheet may be of polyethylene and may be between 0.05 and 0.30 mm. thick. The coat of asphaltic pitch may be not less than 2 mm. thick. Further coatings of, for example, aluminium purpurin paint, may be applied.
Patent GB-368265-A (GB)
Title: Improvements in, or relating to, electrical joint-boxes and similar boxes or receptacles
IPC: H02G3/14
Filed: 1930-11-28
Abstract: 368,265. Screw fastenings. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Nov. 28, 1930, No. 35783. [Classes 44 and 89 (i).] A cast box such as a junction box for electric conduits has its apertures a provided with an integral formation approximating to one complete turn of a spiral rib b, the ends being separated by a clearance space c to allow of the entry and withdrawal of a complementary screw portion of a stopper. Specification 368,391 is referred to.
Patent GB-522579-A (GB)
Title: Improvements in gas-supply control valves
IPC: G05D16/06
Filed: 1938-12-09
Abstract: 522,579. Gas burners. HORSTMANN, F. O., HORSTMANN GEAR CO., Ltd. SUGG, P. C., and SUGG & CO., Ltd., W. Dec. 9, 1938, No. 35980. [Class 75 (i)] [Also in Group XXIX] In a gas supply system, particularly for the burners of gas lamps, having a control valve regulating the supply of gas to a distant automatic valve and a shunt passage which can by-pass the control valve so as to maintain pressure in the service pipe when the control valve is closed, a shunt passage 12, 14, 16 is provided in the control valve, and embodies a pressure governor G for controlling the pressure in the service pipe when the shunt passage is being used. As shown, a conical valve 10 is mounted in a casing 9 and the shunt passage is formed by a bore 12 in the casing, an annular groove 13 and bores 14, 16 in the plug. The handle of the plug has a micro-pressure governor G with a diaphragm-controlled valve 15 in the shunt passage, which controls the pressure of gas supplied to the bore 16 on the outlet side of the valve. The plug has a pocket 17 so that when the plug is turned through 90 degrees to close the main bore, the bore 16 still communicates with the outlet side 1b of the control valve. In a modification, the governor is integral with the housing and the shunt passage is formed either in the plug or in the housing The invention is applicable to systems for the distant control of the valves of gas burners as described in Specification 513,714. Specification 443,927 also is referred to.
Patent GB-389781-A (GB)
Title: Improvements in or relating to inking pads
IPC: B41K1/54
Filed: 1932-12-20
Abstract: 389,781. Inking-apparatus. DAY, R. R., (trading as STANDARD OFFICE SUPPLIES CO.), 9, Lovell's Court, Paternoster Row, London. Dec. 20, 1932, No. 36089. [Class 100 (ii).] An inking-pad such as is used for rubber date-stamps or like devices is composed entirely of a block or slab of cork. The block may be contained within a metal casing by pressing portions of the sides of the casing into the cork. More than one pad may be mounted in a casing, each being supplied with a different coloured ink; plain dividing walls may be provided to separate the pads.
Patent GB-892183-A (GB)
Title: Improvements in or relating to apparatus for forming cakes from plastic material
IPC: B29C43/00
Filed: 1959-10-26
Abstract: 892,183. Compacting processed meat &c. SMITH, H. Oct. 7, 1960 [Oct. 26, 1959], No. 36240/59. Class 87(2). Cakes of processed meat are produced in apparatus which comprises a cylinder 12 having a lid 13 movable into and away from a position covering the open top of the cylinder, a releasable catch 20 for holding the lid firmly against the cylinder when in said position, a piston 22, and manipulating means for moving the piston consisting of a rod 24 attached to the lug 23 of the piston, a crankpin 26, and a crankshaft 27 to which is attached a lever arm. The lid is spring loaded in the open position by a spring 17 on the lid hinge 16 which is tangential to the cylinder. The meat is moulded between piston 22 and surface 13a of the lid with the interposition of sheets of paper from a stack in recess 31 by movement of lever and is removed by releasing catch 20, allowing the lid to open, and raising the piston to a position flush with the cylinder top.
Patent GB-1402057-A (GB)
Title: Mobile arrangement for detecting vertical uneveness in a rail of a railway track
IPC: E01B35/00
Filed: 1973-07-30
Abstract: 1402057 Measuring railway track unevenness electrically FRANZ PLASSEP BAHNBAUMASCHINEN-INDUSTRIE GmbH 30 July 1973 [3 Aug 1972] 36250/73 Heading G1N [Also in Division B7] A mobile arrangement for detecting vertical unevenness of a rail 2 of a railway track comprises a frame 4; two main wheel assemblies 3 supporting the frame; three vertically displaceable sensors in the form of measuring wheel assemblies 7, 8, 9 arranged one behind the other along the longitudinal direction of the track, the two outer wheel assemblies 8, 9 being connected by outer angle levers 14 and cables 22 to flexural bars 19 bearing strain gauges 20 and forming part of inner angle levers 17 connected to the central wheel assembly 7, the signals produced by the strain gauges when a wheel assembly is subjected to a change of level of a rail thereby causing pivoting of the corresponding outer angle lever and consequent flexure of a bar 19 being fed via comparison unit 23 to indicating instrument 24.
Patent GB-1163322-A (GB)
Title: Self Clinching Bundling Straps
IPC: B65D63/10
Filed: 1966-08-12
Abstract: 1,163,322. Strap fastenings. THOMAS & BETTS CORP. 12 Aug., 1966 [17 Aug., 1965], No. 36252/66. Heading E2A. A bundling strap 10 comprises a head end portion 28, a tail end portion 22 and a body portion 12 therebetween, the head end portion having an aperture 32 therethrough, a slot 42 extending in a direction transverse to the length of the body portion 12 from the aperture 32 to the exterior of the head end portion to allow sideways insertion of the body portion into the aperture and means for restraining the body portion from being pulled out of the aperture. As shown, the body portion 12 is substantially oval in cross-section and terminates at the tail end portion in a pointed tip 24. A slot 34, 36 extending across the portion 28 longitudinally of the body portion 12, houses a stainless steel tongue 38 which projects into the aperture 32 for engagement with the portion 12 when the latter is drawn taut through the slot 32.
Patent GB-522688-A (GB)
Title: Apparatus for removing dust and other impurities from air or other gases
IPC: B01D46/12
Filed: 1938-12-13
Abstract: 522,688. Filtering gases. YUILLE (METAL WOOLS). Ltd., and BAKER, G. D. Dec. 13, 1938, No. 36275. [Class 8 (ii)] Metal wool filter screens 2, 3 in a conduit 1 are vibrated by a rod 12 actuated by an overhead cam 19. Dust shaken from the upper screen travels outwards down nested conical baffles 7, 8, 9 which may alsc be operated by the rod 12 ; dust discharge holes 17 in the conduit are opened periodically by an annular shutter moving with the cone 9, and an apron 16 flicks the collected dust out of these holes when open. The conduit 1 may constitute the axial core of a cyclone separator.
Patent GB-1490818-A (GB)
Title: Internal combustion engine exhaust gas recirculating control
IPC: F02M25/07
Filed: 1975-09-03
Abstract: 1490818 Valves FORD AEROSPACE & COMMUNICATIONS CORP 3 Sept 1975 [3 Sept 1974] 36332/75 Heading F2V [Also in Divisions F1 and G3] Exhaust gas recirculating flow metering control apparatus, for an I.C. engine having a recirculation duct 64, 83, 85, 72, 74, 76, includes a movable valve member 82, spring biased to the closed position, actuator means 86, 94 movable in response to operation of the engine to move the valve member to a different open position to change the rate of flow of exhaust gas and metering means for maintaining a different constant rate of flow past the valve member for each open position of the valve member, the metering means including a convergent-divergent nozzle 66, 72, 74, 76 and axially movable pintle 80, the nozzle and pintle being so dimensioned and proportioned as to impart sonic velocity to the flow over essentially the entire operating range of the engine inlet manifold vacuum. The mass flow is varied by changing the position of the pintle. Pressure recovery occurs in the diffuser cones. The pintle is attached to shaft 86 which is moved by diaphragm 94 which divides housing 54 into an atmospheric pressure chamber 102 and a vacuum chamber 104. Valve 108 connects chamber 104 to either vacuum line 112 or to inlet 110 which is open to atmosphere and the valve 108 is electrically connected to control device 116, which receives signals indicative of engine operating conditions and signals from a position transducer 118 which moves with shaft 86. At idling and full throttle, valve 108 is moved to admit atmospheric air to chamber 104 and spring 100 then closes the valve. In other engine operating conditions, e.g. light acceleration, when exhaust emissions increase, the recirculation of exhaust gas is increased.
Patent GB-1400063-A (GB)
Title: Automatic infeed mechanism for a grinding wheelhead
IPC: B24B47/20
Filed: 1972-08-03
Abstract: 1400063 Grinding TOS HOSTIVAR NARODNI PODNIK 3 Aug 1972 [4 Aug 1971] 36347/72 Heading B3D [Also in Division C7] An automatic in-feed mechanism for the wheelhead of a grinding machine comprises hydraulic piston and cylinder means and gear elements whereby following a quick infeed, the workpiece is electrolytically ground by "deep infeed", in which the grinding wheel is fed into the work for the full depth of cut and the workpiece rotated through one revolution, and there after the electrolytic grinding is terminated and a finishing fine grinding effected with the workpiece rotating at a higher speed. The mechanism consists of a rack 8 on the wheelhead 9 connected by gears 6, 7, to a worm 5 on a shaft 4. One end of the shaft is secured to a piston 24 in a quick infeed cylinder 21 integral with a "deep infeed" cylinder 22 having a piston 25 on a rod 23 adjustable by a nut 26. The other end of the shaft is splined to a gear 13 meshing through planet wheels 12a with a toothed ring 12 which can be rotated for coarse adjustment of the wheel head by a hand wheel 10 and gear 11 and for fine adjustment by a wheel 14c, and gearing 14, 14a, 14b. The gear 13 is also connected through gears 15, 15a to a rack 19 movable by the piston 17a of a finishing grinding cylinder 17. A pump 31 is connected to a valve 33 having conduits connected to one end of each of cylinders 17, 21 and to one end of an hydraulically operated valve 34. The other end of cylinder 17 is connected to a valve 39 which can be opened by a solenoid operated valve 40 so that flow from the cylinder passes through a regulator 36b. The valve 34 controls the flow to the cylinder 22, flow from the right hand end being controlled by a regulator 35a. Operation of the valve 33 by a lever 33b direct fluid to the left hand end of the guide infeed cylinder 24, to the left hand end of valve 34 and to the right hand end of cylinder 17, the piston 17a of which is held against movement by the valve 39. Piston 24 moves rod 4 to effect the quick infeed of the wheelhand. Simultaneously, operation of valve 34 directs fluid to the left hand end of the "deep infeed" cylinder 22; the piston 22 moves at a speed determined by the regulator 35a for effecting the "deep infeed" during the electrolytic grinding, the rod 4 of piston 24, after the quick infeed, abutting rod 23 of piston 25 which thereby controls the deep infeed. The nut 26 determines the limit of travel of the cylinder 22. At the end of the travel, the valve 40 is actuated to open the valve 39 so that the finishing grindis effected at a speed determined by the regulator 36b, "spark-out" being effected at the end of movement of the piston 17a.
Patent GB-767923-A (GB)
Title: Improvements in or relating to manufacture of water-soluble salts of carboxyalkyl cellulose ethers
IPC: C08B11/20
Filed: 1953-12-31
Abstract: Fibrous water-soluble salts of carboxyalkyl cellulose ethers are converted into free-flowing substantially granular powders by (1) agitating a loose fibrous mass comprising a water-soluble salt of the ether moist with an aqueous watermiscible alcohol and containing water and alcohol in such proportions that the mass would normally dry to a loose fibrous product, (2) simultaneously introducing thereto a dispersed stream of an aqueous liquid comprising water, an aqueous salt solution or an aqueous alcohol containing more than 40 per cent of water by weight, or live saturated steam, the proportion of aqueous liquid or steam introduced into the fibrous mass being sufficient to form with the aqueous alcohol already present in the mass a liquid containing a sufficiently high proportion of water to cause incipient gelation at the surfaces of the fibres but insufficient to destroy substantially the fibrous character of the mass, (3) displacing the aqueous alcohol in the mass, after the introduction of the aqueous liquid or condensed steam, with a mixture of a water-miscible alcohol and water containing less than 40 per cent by weight of water, (4) substantially drying the thus-treated mass, and (5) mechanically comminuting the substantially dried product.  The water-soluble salts of the ethers may include any of the alkali-metal or ammonium salts of carboxymethyl-, carboxyethyl- or carboxy-propyl-celluloses and the carboxyalkyl cellulose ether may contain hydroxyalkyl substituent groups such as hydroxyethyl.  The cellulose ether is preferably in the form of the crude product still containing by-product salts such as sodium chloride and sodium glycolate.  These may be washed out of the crude product, after the treatment of the latter with an aqueous liquid or steam, by means of the alcoholic liquid containing less than 40 per cent of water.  The alcohol used in the process may be methanol, ethanol, propanol, isopropanol, or tertiary butanol.  In an example 128 parts by weight of moist sodium carboxymethyl cellulose, which has been purified by washing with 85 per cent methanol and contains 82.1 parts of sodium carboxymethyl cellulose and 45.9 parts of aqueous methanol containing 6.9 parts of water, is sprayed while agitated with 41 parts of water, and the mixture is reslurried in 99 per cent methanol, centrifuged, dried to a volatile content of below 5 per cent and pulverized to a fine powder.  Specifications 683,627 and 767,924 are referred to.
Patent GB-831023-A (GB)
Title: Improvements in and relating to free-wheel clutches
IPC: B62M11/14
Filed: 1957-11-21
Abstract: 831,023. One-way clutches. FICHTEL & SACHS A.G. Nov. 21, 1957 [Nov. 22, 1956], No. 36371/57. Class 80 (2). In a freewheel for a two-speed and back-pedal braked cycle-hub wherein driving pawls 48 are removed completely out of engagement with ratchet teeth 44 in the driven hub 11 during over-run to avoid possible lock-up of the back pedal brake, the pawls 48 are mounted in a carrier ring 45 which through lugs 50 is in permanent driving engagement with slots 51 in an extension 46 of a final driven ring-gear 35 of the gear, and is also connected to the driven hub 11 by a wire-spring drag ring 49 which, during over-run, turns the pawl carrier 45 forwards frictionally relatively to its driving ring gear 35 to cause the carrier lugs 50 to slide along inclined leading edges 53 of the ring gear slots 51 producing axial rightward movement of the pawl carrier 45. Such axial movement either causes the pawls 48 to ride completely free of the ends of the ratchet teeth 44 (Fig. 3, not shown), or causes the pawls to engage the bevelled end of a ring 55 which depresses them out of engagement with the ratchet teeth. On forward drive the pawl carrier 45 is returned leftwards by a spring 54, or alternatively the trailing edge 52 of the ring gear slots 51 may be also forwardly inclined to produce return axial movement (Fig. 6, not shown). The two speed gear comprises a stationary sun and a dog 30 permanently connected to the input sprocket 14 and slidable axially to clutch a planet carrier 25 for overdrive or the ring gear 35 for direct drive. The back pedal brake (not described) is at 60 . . . 62.
Patent GB-156105-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B3/06
Filed: 1920-12-29
Abstract: 156,105. Maschinenfabrik Augsburg- Nurnberg Atk.-Ges. Dec. 27, 1919, [Convention date]. Compression - engines.- In a double-acting engine, the end of the cylinder through which the pistonrod passes works upon a two-stroke cycle, the other end working upon a twostroke or a four-stroke cycle. According to the construction shown in Fig. 1, the upper end of the cylinder has the usual inlet and exhaust valves and a fuel admission valve e and works upon a four-stroke cycle. Terminal inlet and exhaust ports are formed in the wall of the lower end of the cylinder, and a compressedair starting-valve l and a pair of fuel-injection valves f are located in the cover b. When a two-stroke cycle occurs in the upper end of the cylinder, terminal exhaust ports are provided, and two air-admission valves are mounted in the cylinder head.
Patent GB-812211-A (GB)
Title: Nitro-phenylene diamines and their use in dyeing animal fibres
IPC: D06P3/30
Filed: 1956-11-28
Abstract: The invention comprises mononitrated o-phenylene diamines having the nitro group in para position to one of the amino groups and mononitrated p-phenylene diamines, wherein the amino group furthest from the nitro group is a group of the formula: <FORM:0812211/IV (b)/1> where n and p are each zero or 1 and n is at least equal to p. In examples: (1) N-(b -aminoethyl)-p-nitraniline is reduced to the corresponding phenylene diamine, acetylated to the triacetate, the latter nitrated to give 1 - amino - 2 - nitro - 4 - b  - aminoethylamino-benzenetriacetate and the latter hydrolysed to give the free base; (2) ethylenediamine is condensed with 1 : 3-dinitro-4-chlorobenzene to give N - (b  - aminoethyl) - 2 : 4 - dinitroaniline which is reduced with sodium hydrosulphide to give 1 - nitro - 3 - amino - 4 - b  - aminoethyl-aminobenzene; (3) nitro-p-phenylene diamine is condensed with chloracetamide to yield 1-amino - 2 - nitro - 4 - carbamoyl - methylamino-benzene; which is (4) hydrolysed to yield 1-amino - 2 - nitro - 4 - carboxymethylamino benzene.  The compounds are used in hair-dyeing compositions (see Group IV (c)]ALSO:A composition for dyeing animal fibres such as human hair comprises an alkaline solution of a mononitrated ortho-phenylene diamine in which the nitro group is in para-position to one of the amino groups or a mononitrated p-phenylene diamine, wherein the amino group furthest from the nitro group has the formula <FORM:0812211/IV (c)/1> where n and p are each zero or 1 and n is at least equal to p.  In Examples: (1) an aqueous solution of 1-amino-2-nitro-4-b -aminoethyl-amino-benzene sulphate made alkaline with ammonia dyes live hair violet; (2) an alkaline solution of 1 - nitro - 3 - amino - 4 - b  - amino - ethylamino-benzene dyes live hair golden; (3) and (4) alkaline solutions of 1-amino-2-nitro-4-N - acetamido - amino - benzene and 1-amino-2 - nitro - benzene - 4 - aminoacetic acid dye live hair red.
Patent GB-771624-A (GB)
Title: Improvements in or relating to cutting devices for cutting continuous lengths of yarn or thread
IPC: D01G1/04
Filed: 1954-12-17
Abstract: 771,624. Spinning yarns etc.; processes &c. ; tuft cutting mechanism for pile fabric looms. FELTON, W. Nov. 25, 1955 [Dec. 17, 1954], No. 36538/54. Classes 120 (3) and 142 (2). A cutting device for cutting continuous lengths of yarn or thread includes an elongated holder consisting of a block 1 having clamping plates 2 to clamp a plurality of cutting blades 3 to the block 1 with their cutting edges 4 projecting therefrom at an angle. The holder is adapted to move in a path, such that to each blade 3 is imparted a motion along an oval or circular path which intersects the yarn to be cut, by a guide 5 in which the holder is slidable crosswise of the yarn, and a means for imparting motion to the guide 5 towards and away from the yarn. The driving mechanism of the holder and guide may consist of cranks or cams, 8, 11.