baber/WOPTO huggingface dataset:
Patent GB-1404830-A (GB)
Title: Automatic exposure control circuits
IPC: G03B7/081
Filed: 1972-10-31
Abstract: 1404830 Automatic exposure control SIEMENS AG 31 Oct 1972 [7 March 1972] 50032/72 Heading G2A An automatic exposure control for a camera comprises a photo-detector which receives ambient light via a pilot filter which has radial zones of mutually different transparency values and which is caused to rotate once on operation of a camera shutter release, the filter moving from its most transparent to its least transparent zone; the photo-detector is connected to a highpass characteristic input of an amplifier, the amplifier in turn being connected to a threshold detector so that when the amplifier output exceeds a predetermined value the threshold detector generates a control signal which is connected to and operates an adjusting member for selectively setting the diaphragm aperture or the shutter speed. In the embodiment shown the amplifier simultaneously acts as the threshold value detector. The photo-detector 7 is connected to the high-pass characteristic inverting input 2 of amplifier. The varying current '  through the detector 7, determined by the rotating pilot filter 18 generates a voltage drop across the resistance 8 which is amplifed by amplifier 1. When the amplifier output exceeds the threshold value of a diode 13 the output signal is fed to the non-inverting input 3 of the amplifier. This generates a negative pulse in the amplifier output which determines the shutter speed or diaphragm aperture.
Patent GB-1335847-A (GB)
Title: Aromatic azine compounds and their use as optical brighteners
IPC: D21H21/30
Filed: 1970-10-21
Abstract: 1335847 Optical brighteners ALBRIGHT & WILSON (AUSTRALIA) Ltd 21 Oct 1970 [28 Oct 1969] 50081/70 Heading D1P [Also in Divisions C2 and C5] Optical brightening agents used in the treatment of paper pulp or textile materials have the formula: where R and R' are the same or different and are hydrogen or a group which is not strongly electron donating or withdrawing having a Hammett ovalue in the range -0.25 and +0.25, A, B, D, E, A', B', D', E' are the same or different and are hydrogen, halogen, nitro, hydroxyl, nitrile, SO 3 M where M is hydrogen or an alkali metal or alkaline earth metal or: SO 2 W where W is a substituted amino, alkyl or aryloxy group and X and Y are the same or different and are -NH 2 , an amide group with one NH bond or a secondary amino group with one NH bond. In an example semi-bleached Kraft stock is pulped at 10% pulp, the optical brightening agent added (0.01% solution) slurried and vacuum filtrated; In a further example wool, cotton, nylon, polyester, polyacrylonitrile or secondary acetate fibres are treated. In both examples the optical brightening agents are of formula I above where X and Y are: with R" being morpholino and R"' p-chloranilino, or anilino or p-sulphoanilino or R" may be monoethanolamino and R"' phenoxy, and mixtures of such compounds with similar ones in which the central radical is -CH=CH-. The liquors for brightening textiles may contain conventional -bleaching additives e.g. sulphites, hydrosulphites, bisulphites, chlorites hypochlorites or hydrogen peroxide. A 40:1 liquor ratio is used.
Patent GB-1094357-A (GB)
Title: Improvements in or relating to speech filters
Inventor: MORRIS ADRIAN GERALD
IPC: H03G3/20
Filed: 1964-12-09
Abstract: 1,094,357. Automatic volume control. MULLARD Ltd. Nov. 15, 1965 [Dec. 9, 1964], No. 50109/64. Heading H4R. An A.V.C. circuit includes a speech detector 2 which detects the presence or absence of speech and operates a switch 11 so that while speech signals are applied to the circuit a gain control signal is applied directly from a rectifier 8, connected to the output of amplifier stage 7, to a logarithmic converter feeding a controlling variable attenuator 4, while in the absence of speech a memory device 9 is inserted in the control loop to maintain the setting of the attenuator 4 at the value corresponding to the speech level immediately before it ceased. The speech detector 2 comprises a constant volume amplifier 12, a filter 13 tuned to the first formant frequency band, a rectifier 14 and a filter 15 which passes only syllabic frequencies, e.g. 0.5 to 7 c.p.s., to amplifier 16, rectifier 17 and a trigger circuit 10 so that only speech signals will produce a sufficient output from the syllabic frequency filter to operate trigger 10, while noise etc. will not operate trigger 10.
Patent GB-1081329-A (GB)
Title: Improvements in or relating to valves for pressurized dispensing containers
IPC: C04B33/32
Filed: 1964-12-09
Abstract: 1,081,329. Pressurized dispensing containers E.H. GREEN. Dec.9, 1964 [Jan. 3, 1964], No. 50141/64. Heading F1R. A pressurized dispensing container valve comprises two valve plungers 66 and 80, valve plunger 66 being reciprocable within and also together with the plunger 80. With the seat 102 of plunger 66 lowered from sealing gasket 50 and seat 92 of plunger 80 engaging the gasket the flow through the hollow stem 58 to a dispensing head is metered by a groove 100 through the valve seat 92. With both plunger seats lowered from the gasket the flow is metered by the exposed portion of stem slot 74 extending into the plunger gallery 104. The upper end of the slot may extend above the seat 102 in the absence of a gallery. The floor of the metering groove (100) may slope downwardly, Fig.9 (not shown). The single groove 100 may be replaced by a plurality of narrow grooves.
Patent GB-1428020-A (GB)
Title: Temple roller
IPC: D06C3/06
Filed: 1973-10-30
Abstract: 1428020 Rollers RUTI MACHINERY WORKS Ltd 30 Oct 1973 [30 Oct 1972] 50459/73 Heading D1E [Also in Division F2] A temple roller for a loom comprises wheels 14 each mounted for rotation on a cylindrical surface 31 of a bearing 12, at the end of which opposite to that of a flange 13 where the radial thickness 24 of the bearing is minimum due to the oblique arrangement of the bearing on a support rod 11, the bearing is reinforced by providing a bulge in the form of a flat portion in the cylindrical aperture 30 and making the support rod with a corresponding flattened portion 20. As shown, the bearings 12 increase in inclination in succession away from the free end of the roller and are clamped together by a closure head 15. The cloth 17 is directed around deflecting rollers 18 and over the wheels 14 which may be provided with spikes 16 or made of rubber. If desired, the wheels may rotate together with plastics sleeves 26 whose end faces are pressed towards the right by the cloth 17 to slide over the smooth end faces of the adjacent bearing. The end bearing 12' adjacent the selvedge edge of the cloth may be reversed such that the flange 13' faces towards the free end of the roller. The bearings 12 and 12' may be manufactured by sintering.
Patent GB-1191913-A (GB)
Title: Process for the Conversion of Pyridine Bases into Pyridine Bases of Lower Molecular Weight
Inventor: MOLL KARL-KLAUS
IPC: C07D213/127
Filed: 1967-11-07
Abstract: 1,191,913. Pyridine bases. LEUNA-WERKE "WALTER ULBRICHT" VEB. 7 Nov., 1967, No. 50547/67. Heading C2C. A process for the conversion of pyridine bases to pyridine bases of lower molecular weight at increased temperatures, in the presence of air and on a catalyst which contains vanadium pentoxide on a carrier consists in carrying out the conversion in the presence of that quantity of air which contains at the most three times the stoichiometrically required amount of oxygen, on a catalyst containing up to 15% by weight of vanadium pentoxide on aluminium oxide which has been preheated to a temperature between 600‹ and 1000‹ C. and has a surface area between 150 and 10 m.<SP>2</SP>/gm. The catalyst may also contain cadmium, bismuth, nickel or cobalt oxides and the conversion may be carried out in the presence of water. Various methyl and ethyl pyridines are specified for use as starting materials. Examples are furnished.
Patent GB-1161098-A (GB)
Title: A Brushless Direct-Current Motor.
IPC: H02K29/08
Filed: 1966-11-11
Abstract: 1,161,098. Electric motors. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 11 Nov., 1966 [15 Nov., 1965], No. 50582/66. Heading H2A. [Also in Division H1] The stator 4 of a D.C. motor with a permanent magnet rotor 2 has windings whose sequential energization is controlled by a contactless commutator device employing magnetic fieldresponsive resistors 6 attached directly to a flux return member 5 and influenced by an adjacent magnet 3 fixed to shaft 1 of the motor. In a modification the flux return member may be annular, Fig. 2 (not shown), with the resistors fixed on the internal bore. The resistors are stuck on to the flux return member by synthetic resin.
Patent GB-1025431-A (GB)
Title: Neomycin salt
Inventor: CASADIO SILVANO
IPC: C07H15/232
Filed: 1963-12-23
Abstract: Neomycin pamoate (i.e. embonate or 2,21-dihydroxy - 1,11 - dinaphthylmethane - 3,3 - dicarboxylate) is produced by reacting neomycin or an acid addition salt, e.g. sulphate with pamoic acid or a salt thereof, e.g. sodium salt. Water-soluble salts may be used in aqueous solution, the neomycin pamoate being precipitated. Neomycin pamoate is less toxic than the sulphate and is effective against intestinal infections.  It is formulated into medicines (see Division A5).ALSO:Pharmaceutical compositions for the treatment of intestinal infections comprise neomycin pamoate (i.e. embonate or 2,21-dihydroxy-1, 11-dinaphthylamine-3, 31-dicarbonylate) and a carrier.  The compositions may take the form of drops, suspensions, tablets, pills, capsules and cachets.  Other drugs for the treatment of intestinal infections e.g. sulphonamides, gastro-intestinal absorbents and aluminium pamoate may be present.
Patent GB-1499449-A (GB)
Title: Washing machine control circuit
IPC: D06F33/02
Filed: 1975-12-12
Abstract: 1499449 Control of D.C. motors PHILIPS GLOEILAMPENFABRIEKEN NV 12 Dec 1975 [17 Dec 1974] 51002/75 Heading H2J The drum of a washing and spin drying machine is driven with a fixed speed transmission ratio by a D.C. motor M, which is fed from an A.C. supply K1, K2 through a first rectifier bridge of diodes D1, D2 and thyristors TH1, TH2, whose firing angles are controlled to provide voltages producing low and medium speeds of the motor, Fig. 2 (not shown), the speed being increased, at least during the final spin drying stage of the machine cycle, by operation of switches S1, S2 by the programme timer to supply the motor through a second rectifier bridge of diodes D1, D2, D4, D5 and capacitors C1, C2, which charge during the first part of each bridge rectified half cycle and discharge through the motor during the remaining part to produce a voltage doubling effect, Fig. 3 (not shown). The two bridges may be independent of one another and storage components other than capacitors may be used.
Patent GB-1172516-A (GB)
Title: Production of Terpenic Esters
Inventor: CLARK JOHN COLIN
IPC: C07C69/14
Filed: 1965-12-01
Abstract: 1,172,516. Terpenic esters. A. BOAKE, ROBERTS & CO. Ltd. 1 March, 1967 [1 Dec., 1965], No. 51023/65. Heading C2C. Terpenic esters are prepared by reacting myrcene with an aliphatic carboxylic acid (at least 2 C atoms) in the presence of an anti. oxidant and in the absence of oxygen and strong acids. The mixture may be heated and conventional antioxidants are listed. The myrcene may be from the thermal isomerization of #-pinene and may include dipentene. A limit of 10<SP>-3</SP> moles of strong acid (Ka greater than 5 x 10<SP>-3</SP>) is specified and the preparation of geranyl and neryl acetates is exemplified.
Patent GB-1182592-A (GB)
Title: Improvements in and relating to Vehicle Drum Brakes
Inventor: FURBANK GEORGE ARTHUR
IPC: F16D65/54
Filed: 1965-12-01
Abstract: 1,182,592. Internal shoe drum brakes. GIRLING Ltd. 1 March, 1967 [1 Dec., 1965], No. 51031/65. Heading F2E. Shoes 38, 42 of an internal shoe drum brake are of double webbed type and are retracted by a single tension spring 48 which is disposed between the webs of shoe 38 and extends between adjacent arms 54, 56 of two bell crank levers 50, 52, also arranged between the webs of shoe 38 and having spindles journalled in the webs, rods 62 connecting the other arms 58, 60 of the bell crank levers to the shoe 42, by way of links 64 pivoted on pins extending between the webs of shoe 42. The spindles of the bell crank levers are either of square section, as shown, or have a recess in their exposed end to receive an Allen key, whereby tensioning of the spring during assembly of the brake is facilitated. The arrangement is said to be particularly useful in the type of brake shown, which employs a wedge type actuator 18 and adjustable anchorage 26 in conjunction with a backing plate having only a shallow recessed portion inadequate to accommodate conventional horizontally arranged release springs. Reference has been directed by the Comptroller to Specification 1,019,428.
Patent GB-1000269-A (GB)
Title: Method of forming printed electrical circuits
IPC: H02K3/26
Filed: 1963-12-30
Abstract: 1,000,269. Producing printed circuits by etching. HAYDON SWITCH INSTRUMENT Inc. Dec. 30, 1963 [March 26, 1963], No. 51127/63. Heading B6J. [Also in Division B3] In a method of producing a printed circuit by etching, the metal foil 30, Fig. 3, is first etched part-way through its thickness from both sides to leave a web portion 41. This web portion has sufficient strength to prevent the foil from breaking up. An insulating member 48 and a support member 52, as in Fig. 5, is then applied to one of the etched surfaces of two similar foils. The assembly is then finally etched to produce the printed circuit, as shown in cross-section in Fig. 6. Fig. 1 illustrates a disc type rotor for a D.C. motor having printed circuit windings and commutator segments as produced by the above method. Fig. 7 illustrates a spot-welding technique for forming a connection between conductive path portions on opposite sides of a laminate construction, and a similar connection may be made by riveting. Fig. 11 illustrates various three-dimensional forms and design projections made practical by the above method, since the conductive paths of a printed circuit so produced are formed with conductors having substantially thicker cross-sections than those produced by prior methods.
Patent GB-1334554-A (GB)
Title: Air boost fuel atomizing systems for gas turbine engines
IPC: F02C7/236
Filed: 1971-11-05
Abstract: 1334554 Gas turbine engines-starting PARKER-HANNIFIN CORP 5 Nov 1971 [4 Dec 1970] 51539/71 Heading F1G The invention relates to an air boost fuel atomizing system for a gas turbine engine in which air under pressure from an engine-driven compressor is supplied to air atomizing fuel nozzles disposed in the combustion chamber. In Fig.1 air under pressure from the compressor, not shown; passes through line 8 direct to the manifold 5 to which fuel is supplied through line 7, the air and fuel being discharged through the air atomizing fuel injection nozzles 6. At engine starting the air pressure is insufficient to produce fuel atomization and a boost system 16 is brought into operation. The switch 15 is operated to close a circuit whereby the solenoid 11 is energized and the valve member 10 is moved to the position shown and the motor 17 is energized to drive auxiliary compressor 18. Air delivered at low-pressure from the engine compressor now passes to line 19, through filter 20 to the compressor 18 discharging therefrom through line 21, through the valve 10 and line 8 to the manifold 5, the air being at sufficient pressure to cause atomization of fuel. When the pressure of the engine compressor attains a predetermined value, the pressure switch 12 operates to de-energize the motor and the solenoid 11 whereupon the valve 10 moves to its normal operation position. In Fig. 3 air from the auxiliary compressor 34 passes to a storage tank 36 so that at starting the switch 39 is closed so that the motor 30 is energized to drive the compressor 34 which charges the tank 36 to the appropriate pressure. The switch 40 is also closed which causes the two solenoids 31, 32 to be energized whereupon the valves 25, 28 move to the positions opposite to those shown so that air from the engine compressor is shut off and air under pressure passes from the tank 36 through line 27 and the open valve 28 through line 8 to the manifold 5 where it is utilized to cause atomization of the fuel. When the pressure in the tank 36 attains a predetermined value the pressure switch 38 operates to de-energize the motor 30. When the engine compressor pressure obtains a predetermined valve the pressure switch 29 operates to de-energize the solenoids 31, 32 whereupon the valves 25, 28 move back to the positions shown.
Patent GB-1123362-A (GB)
Title: Diuretic pharmaceutical preparations for oral use
IPC: A61K31/565
Filed: 1965-12-06
Abstract: Diuretic compositions for oral administration, comprise a diuretic and saliuretic 3, 4-dihydro-1, 2, 4-benzothiodiazin-1, 1-dioxide compound or a physiologically tolerable salt thereof, optionally with one or more further active agents, and a content of a therapeutically acceptable potassium salt of citric or tartaric acid.  Preferred salts are dipotassium tartrate or tripotassium citrate.  Other active agents which may be included are; Rauwolfia alkaloids, particularly reserpine, deserpidine, rescinnamine or syrosingopine; 1-hydrazino- and 1,4-dihydrazino-phthalazine; quanethidine; spironolactone; protoveratrines; theobromine; theophylline choline salt; sodium 5-sec butyl-5-ethyl- and 5-ethyl-5-phenyl-barbiturate; 3-(3-oxo-7a -acetyl thio-17b -hydroxy-4-androsten-17a -yl)-propionic acid-g -lactone; 2-methyl-2-propyl-1, 3-propanediol dicarbamate; 2-heptamethylene-imino-ethylquanidine sulphate; and veratrum viride tannate.  The compositions may take the form of tablets, pills, capsules or dragees with conventional carriers and excipients, or may be enterically coated, or in a sustained release form; in the latter case part of the diuretic component may be in part of the form arranged for immediate release, but the potassium salt should all be in the portion for slow release. The potassium salt is included in the compositions to offset the potassium excretory properties of the diuretic component while being free from unwarranted side effects.
Patent GB-1204597-A (GB)
Title: Combination portable foldable bassinet and carrying case
IPC: A47D13/02
Filed: 1968-11-01
Abstract: 1,204,597. Bags convertible into other articles. HANKSCRAFT CO. 1 Nov., 1968 [23 Jan., 1968], No. 52008/68. Heading A4G. [Also in Division A5] A combination foldable bassinet and carrying case 20 includes a rectangular bottom wall (30, Fig. 9) on which rests a pliable mattress (38, Fig. 7), side walls 70, the bottom and side walls are divided by two fold lines (33, Fig. 9) into three sections (34a, 34b, 34c, Fig. 9) and 78a, 78b, 78c, end panels 50 and 100 to one of which 50 is attached two side panels 40, to fold the bassinet 20, thus forming a carrying case in which there is room to carry additional equipment, the side walls 70 and end panel 100 are folded on to the bottom (30) which is then folded along the fold lines (33) into a compartment (58, Fig. 2). A rectangular cover 60 is foldably joined to the end panel 50 and when closed as in Fig. 4 forms a hood in conjunction with the end panel 50 and side panels 40. Flaps 63 of the cover 60 can be secured to the side panels by interengageable locking elements 64. A fastening means such as a zip (110, Fig. 1) is provided along the edge of each side panel 40 and the portion of the longer edges of the bottom wall (30) between the fold lines (33), which is approximately equal to the height of the side panels 40. The bassinet 20 is reinforced by elongated rigid members 75, 79 and (36, Fig. 9) disposed in the bottom wall (30) and side walls 70 approximately parallel and adjacent to the fold lines. The adjcent ends of these members in the bottom and side walls can be joined by hinges 37 having means for preventing the side walls 70 from forming an angle greater than 90 degrees with the bottom wall 3. A strap 107 attached to the side panels 40 and strap 105 attached to the side walls 70 provide means for carrying the bassinet 20 in the folded and unfolded conditions respectively.
Patent GB-1475078-A (GB)
Title: Isolation of regions of bodies
IPC: A61B19/00
Filed: 1974-10-18
Abstract: 1475078 Isolating body regions UNITED KINGDOM ATOMIC ENERGY AUTHORITY 18 Oct 1974 [9 Nov 1973] 52037/73 Heading A5R Apparatus for isolating a body region from its environment comprises a hollow collar 8 having orifices 12, for surrounding the region and means 5, 6, 7 for supplying sterile air to the collar for discharge away from the body under conditions of laminar flow, the arrangement being such that gaps between the collar and the body are sealed. The collar 8 is connected to a supply of sterile air through a junction box 5 and flexible pipes 6, 7 and is either conformable to the body or sealed against the body surrounding the region by a curtain of flexible impervious material. The collar is made of stainless steel or plastics.
Patent GB-1093428-A (GB)
Title: Inorganic fibre forming apparatus and method
IPC: C03C3/089
Filed: 1964-12-22
Abstract: <PICT:1093428/C1/1> In forming glass or like fibre, solid particulate glass is fed into a centrifugal spinner directly on to the inner wall of a perforated area and heated to the molten state so that molten glass is forced from the perforations by centrifugal force.  As disclosed, a spinner 1 on a horizontal shaft 2 has a disc 3 and perforated rim 4 on to which the glass particles fall from a feed conveyer 5, which may comprise a helical member 6 or a belt and buckle conveyer or vibrating troughs.  The glass is melted by a plurality of gas burners 7 as shown or by electric heaters or both. The fibres issuing from the perforations 17 may be attenuated by a blast of superheated steam from orifices 8 in a concentric ring 9, the fibres then being collected on a conveyer 18.