baber/WOPTO huggingface dataset:
Patent GB-703716-A (GB)
Title: Improvements in or relating to circuit arrangement for impulse control in telephone installations
Inventor: FUHRER R
IPC: H04Q1/50
Filed: 1951-05-31
Abstract: 703,716. Automatic exchange systems. SIEMENS & HALSKE' AKT.-GES. May 31, 1951, No. 12948/51. Class 40 (4) A two-way repeater for conversion of A.C. to D.C. signals and vice-versa is so arranged that when in non-transmitting condition it can receive backward signals of one type while if the repeater is in transmitting condition it can receive backward signals of another type and pass on these signals after the transmitting condition has ended. Relay A1 in a repeater œK follows A.C. impulses on a trunk line VL and repeats them as D.C. impulses to operate relay A3 in a line selector LW. During a train of impulses, relay VI holds up and connects winding I of E2 to the b-wire. At the end of the train when VI falls back the repeater can receive rearward impulses. Loop impulses, such as answering, clearing and flashing, sent back by line selector LW operate E1 and therefore S which transmits A.C. impulses back over trunk line VL. Alternatively a leg impulse over the b-wire, such as the end-of-selection signal, produced by the energization of slow-release relays U (not shown) and V, operates E2 while the repeater is still in' transmitting condition. When VI falls back, E2 releases, returning the end-of-selection signal during its release time by operating S. In the modification of Fig. 2, E1 has two windings which are disconnected from the loop when the repeater is not in forwardtransmitting condition, but winding II of E1 responding to a commencement-of-conversation signal on the b-wire when contact z closes. E1 then operates S to return A.C. impulses to VL, the impulses ending when E2 and U1 fall back slowly. In Fig 3, an incoming repeater œK and an outgoing repeater œg reconnect the loop reception relay E1 in the event of a disturbance. Relay A1 receives A.C. impulses and send on D.C. impulses to A3 in the outgoing repeater, which sends on A.C. impulses. In œK, V1 holds up during a train of impulses and connects reception relay E2 to the b-wire but E2 does not operate. Rearward impulses from œg energize E3 but VI has meanwhile fallen back so that E2 still remains normal. In the event of a disturbance, however, during backtransmission, such as re-dialling coinciding with the end-of-selection signal so that E3 is energized when V1 responds to the disturbance, relays E2 and AB pull up, E3 being maintained over winding II until the disturbance ceases when VI falls back. E2 energizes U1 and S, the latter returning busy tone to the calling subscriber. VI, E2, E3 and AB then release, the last very slowly. E3 operates E1 which releases U1. E1 maintains S to continue the engaged signal until AB relapses when E1 and S fall back.
Patent GB-1045115-A (GB)
Title: Hitch device for use in connecting an implement to a tractor
IPC: A01B59/06
Filed: 1965-03-26
Abstract: 1,045,115. Tractor power lift mechanisms. R. J. KNAAPI. March 26, 1965 [April 1, 1964; Dec. 2, 1964; Jan. 19, 1965], No. 12975/65. Heading A1P. A hitch device for attaching an implement to a tractor comprises a frame attachable to the three point linkage 21, 22 of a tractor and provided with lower coupling elements 4 on legs 2 which are adjustable in a transverse direction. The legs are pivotally mounted on an upper part 9 which pivotally carries an upper coupling element 12 locking elements 16, 17 for the coupling elements are operated by a handle 20.
Patent GB-573346-A (GB)
Title: Bandages
IPC: A61F13/00
Filed: 1943-08-11
Abstract: 573,346. Finger stalls. BYRNE; E. L. W. (Surgitube International, Inc.). Aug. 11, 1943, No. 13007. [Class 141] [Also in Group VI] A finger stall is made from an open ended tube of suitable material, by twisting intermediate of its ends and turning back one portion over the remaining portion. As shown in the Figures the stall may be made on the finger by placing part 11 of the tube over the finger, twisting the tube at 12 and returning the part 13 over the part 11. By giving a number of twists at 12, a pad may be formed at the end of the finger. The tube may be made of soft material, such as gauze or knitted or netted fabric, and may produce a self-conformable and elastic stall.
Patent GB-1424193-A (GB)
Title: Gas turbine ducted fan engines
IPC: F02K1/72
Filed: 1972-03-21
Abstract: 1424193 Deflecting propulsion jets ROLLSROYCE (1971) Ltd 20 March 1973 [21 March 1972] 13068/72 Heading B7G [Also in Division F1] The invention relates to a gas turbine ducted fan engine which comprises an annular fan duct 8 which terminates at its downstream end in a nozzle and within which is disposed an annular flow spitter 16 which divides the nozzle into radially inner and outer flow passages 15 and 14, the outlet plane of the inner flow passage being downstream of the outlet plane of the outer flow passage. A portion at least of the flow splitter is divided circumferentially into a plurality of flaps 32 which are pivotable about an axis 24 so as to vary the outlet area of the inner flow passage. The engine shown in Fig. 1 is adapted also for reverse thrust operation, the downstream portion of the flow splitter comprising a series of segments 22 which are pivotable about the circumferential axis 24 from the normal position shown in full lines to the reverse thrust position shown in chain-dot lines in which the segments block the nozzle outlet. The downstream portion of the fan casing is axially movable by actuators 29 so as to uncover openings in the fan casing through which the fan air discharges when the segments 22 are in the blocking position. Cascades of vanes 30 are disposed in the openings so as to direct the fan air in a forward direction. The movable part of the fan casing is connected to the segments 22 by links 26 so that as the casing is moved rearwardly so the segments are pivoted to the blocking position. The fixed forward portion of the flow splitter is supported by vanes 18. The flaps 32 form part of the segments 22 being pivotable about the axis 24 by a piston and cylinder arrangement, Fig. 5. Each flap is formed integrally with a piston 62 which is disposed in a part-toroidal cylinder 63 so that when air under pressure is applied through the hollow pivot 24 into the cylinder, the piston and so the flap move to the minimum area position shown in full lines; when the air under pressure is released the piston and the flap move under the action of the air pressure within the fan duct to the maximum area position shown in broken lines.
Patent GB-940412-A (GB)
Title: Improvements in or relating to flexible hose fittings
Inventor: DISNEY FRANCIS JOHN
IPC: F16L33/22
Filed: 1961-04-11
Abstract: 940,412. Hose end fittings. FRENCH & COLLETT Ltd. April 11, 1962 [April 11, 1961], No. 13083/61. Heading F2G. A hose end fitting comprises a body portion 1 possessing an integral nozzle 2 for insertion into a hose end 3 and a clamping ring 5 consisting of a cylindrical portion 8 and a plurality of spring fingers 6 the ends of which are formed into circlets 7. The cylindrical portion 8 is held in the body portion 1 by a number of lugs 8a, a nut on sleeve 4 having a tapered inner surface 4a being screwed on to body portion 1 to clamp the circlets 7 against the hose end 3. The cylindrical portion may be split longitudinally so that it may be contracted and sprung into the mouth of body portion 1. The clamping ring 5 may be of metal or synthetic resin, the circlets 7 being not completely closed or in the form of flat discs respectively. Two body portions 1 may be formed back-to-back so that a pipe joint may be fabricated.
Patent GB-528748-A (GB)
Title: Improvements in or relating to the treatment of aluminium and aluminium base alloy surfaces
IPC: C23F4/00
Filed: 1939-05-02
Abstract: 528,748. Etching. ALUMINUM COLORS, Inc. May 2, 1939, No. 13096. Convention date, May 3, 1938. [Class 100 (ii)] [Also in Groups II, III and XXXVI] Relates to the treatment of aluminium or aluminium base alloy surfaces to secure the firm adherence thereto of a subsequently applied coating of paint, or electrochemically deposited metallic or non-metallic material, or coatings applied mechanically, such as rolled or sprayed coatings. The surface is treated in an aqueous alkali-metal carbonate-chromate solution, preferably at or near boiling temperature, to produce an oxide coating on the surface, and the oxide coating is thereafter removed with an aqueous solution of chromic and/or nitric acids the surface being left uniformly etched. The carbonate-chromate solution preferably contains alkali metal carbonates and dichromates in the ratio of about 3 : 1, the chromic acid solution preferably contains 5 per cent by weight of chromic acid, and the nitric acid solution contains 5-70 per cent., preferably 35 per cent., by weight of nitric acid. When a metallic coating is to be applied, as by electroplating, to the surface, the oxide coating is preferably removed by the nitric acid solution, which is employed at room temperature. The chromic acid solution is preferably employed at a temperature of approximately 180F. Specifications 393,996 and 396,204, [both in Group II], are referred to.
Patent GB-456286-A (GB)
Title: Improvements in or relating to polariscopes
IPC: G01J4/04
Filed: 1935-05-03
Abstract: 456,286. Polariscopes &c. AITKEN, I. M. E., Westerton, Guardbridge, Fifeshire. May 3, 1935, No. 13163. [Class 97 (i)] A polariscope or polarimeter comprises means for producing plane polarized light which is passed through the substance or liquid to be tested and then enters an adjustable analyzer, the light passed by the analyzer being directed upon a photo-electric cell con. nected to an indicating instrument, by the aid of which the analyzer can be adjusted to a position corresponding to minimum light transmission. In the form shown, a lens 4b directs light from a source 1 to a polarizing Nicol prism 4c and the polarized light passes through the liquid in a tube 5 to a rotatable analyzing Nicol prism 7 provided with a divided circle 8. The light transmitted by the prism 7 is concentrated by a lens 11 on to a photo-electric cell 12 connected through an amplifier 14 to a galvanometer &c. 15. Prisms 17 may be provided for illuminating the scale 8 which is observed by eyepieces 10. In another form the analyzer is stationary and extinction is effected by a rotatable quartz wedge.
Patent GB-132094-A (GB)
IPC: B64C3/18
Abstract: 132,094. Wylie, H. N. Oct. 8, 1918. framework. - Struts and stav-wires are connected to thin metal structural members on aircraft by saddle-shaped members anchored to a pin or tube passing transversely through the principal member so that the stresses are along lines passing through the axis of the tube. Fig. 1 shows a spar A strengthened by vertical plates B which support a transverse tube C on which the forked ends E of a strut socket are pivoted clear of the girder. Stay-wires F, J are connected to saddle members G, formed from plates 'bent back on themselves, which are also connected to the tube C or to pins H in the members E placed as close to the tube C are possible.
Patent GB-276930-A (GB)
Title: Improvements in and relating to vehicle tops
IPC: B62D25/06
Filed: 1927-05-17
Abstract: 276,930. Rotthouse, C. A., and Cook, E. G. May 17, 1927. Bodies. - The stringers overlying the crossbows of vehicle tops are substantially T-shaped and are constructed of resilient sheet metal bent to provide a vertical flange 14 of double thickness and concave-convex lateral flanges 15. The flanges 14 engage in slots 16 in the intermediate bows 11, the flange 14 being flattened out at the rear and front cross bows and secured thereto by suitable means. The stringers 13 are manufactured in long lengths and cut to suit the particular vehicle top being equipped.
Patent GB-583312-A (GB)
Title: Improvements in or relating to impregnating media for power cables, electrical condensers and the like
IPC: H01B3/20
Filed: 1944-07-12
Abstract: An impregnating medium for electrical purposes comprising a mixture of rosin and crude mineral lubricating oil, or a distillate thereof, is purified by treatment with sulphuric acid and subsequent separation of the acid sludge.  The process may be carried out while the mixture is dissolved in an inert volatile solvent, such as petrol, which is afterwards distilled off. Before or after removal of the solvent the mixture may be treated, to remove products of sulphonation or traces of sludge, with water or adsorbent material such as activated clay, fuller's earth, carbon or bauxite. Specifications 441,882 and 524,246 are referred to.
Patent GB-553409-A (GB)
Title: Improvements in appliances for cutting, mixing and mashing animal and poultry foods
IPC: A47J19/04
Filed: 1941-10-18
Abstract: 553,409. Cutting, mixing &c. animal &c. foods. GASCOIGNE, G. H., and XNOX, J. R. Oct. 18, 1941, No. 13428. [Class 86] [Also in Group VI] A device for cutting, mixing, and mashing animal and poultry foods, especially kitchen waste, comprises a single length of high tensile steel wire E held taut in grooves D<SP>1</SP> at the ends of fork members D removably mounted on the arms of a V-shaped member C, the U-shaped stem of which is secured in a tapered socket B on a handle A.
Patent GB-528524-A (GB)
Title: Improvements in drills for brickwork and the like
IPC: B28D1/14
Filed: 1939-05-05
Abstract: 528,524. Boring and drilling tools. COULTHREAD, W. May 5, 1939, No. 13442. [Class 124] [Also in Group NXII] A boring or drilling tool for use with brickwork or the like has a channelled stem 3 of substantially semicircular cross-section and an oblique flat surface 4 which extends forwardly from the crest of the channel towards the tip of the tool so as to form a concaved or re-entrant tip portion. The oblique surface 4 may extend to the edges 5 of the channel so as to form two sharp points, or it may be spaced therefrom by further surfaces 6 which may be sharpened. The surface 4 may or may not be in a plane at right-angles to the general plane of symmetry of the tool, and its concaved perimeter may be levelled as at 7 to form a cutting edge.
Patent GB-444877-A (GB)
Title: Improvements in miners' safety lamps
IPC: F21L23/00
Filed: 1935-05-30
Abstract: 444,877. Miners' safety lamps. HAILWOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. May 30, 1935, No. 13465 /34. [Class 75 (iv)] In a miners' safety lamp in which the lamp bush B<1> is provided with a number of gauzeprotected air supply openings G which are guarded by a ring A having a screwed por. tion A<1> which is vertically adjustable for regulating and cutting off the air supply to the lamp, the air control ring A and the associated parts of the lamp are so arranged that the incoming air is caused to travel both upwards and downwards, or vice versa, before passing horizontally or substantially horizontally through the gauzes. In the form shown, the ring A operates in a recess between the gauzes and an outer guard ring C, the lower end of the ring A being adapted to form a tight joint with a flange G<1> on the gauze ring, or the flange A<2> of the ring A may form a tight joint with the upper edge of the ring C. Pulling out of the ring A may be prevented by means of a recessed spring ring F, and the outside of the flange A<2> may be serrated to facilitate operation. The ring A may be formed with straight and /or sloping ribs to relieve excessive air pressure and /or produce a rotary movement of the incoming air. For positioning purposes, the ring A may carry a spring catch to engage serrations in the ring C, or a ratchet effect may be obtained by means of a flat spring inside the recess, the ring A being locked in any desired position as by means of a screw.
Patent GB-1261572-A (GB)
Title: Sulfanilamide derivatives their preparation and use
IPC: C07D233/46
Filed: 1969-03-14
Abstract: 1,261,572. Imidazolidine derivatives; preparation thereof. J. R. GEIGY A.G. 14 March, 1969 [14 March, 1968 (4)], No. 13508/69. Heading C2C. Compounds I (including salts thereof) wherein R 1  signifies C 1-5  alkyl, or an optionally alkyl-substituted cycloalkyl or cycloalkenyl group, or a cycloalkyl-alkyl or cycloalkenylalkyl group of not more than 7 carbons are prepared: (a) by reacting a compound II (wherein R 2  signifies H, Me aryl-, diaryl- or triaryl-methyl, or allyl and X is a group which can be converted by reduction, reductive cleavage or hydrolysis into NH 2  or if R 2  is H, X can be NH 2 ) with a reactive derivative of cyanic acid; (b) by reacting a compound III with a nitrile, R 1 NH.CN, or alkali or alkaline earth metal salt thereof (X is NH 2  or a group which can be converted by reduction, reductive cleavage or hydrolysis into NH 2 ); (c) by reacting a benzene sulphonamide, X.C 6 H 4 .SO 2 NH 2 , with a reactive ester (e.g. a halide) of a hydroxy compound, CH 2 .OH.CH 2 N(R 1 ).CN {X is as defined in (b)}; (d) by reacting an amine, R 1 .NH 2  with a reactive ester of a compound VII (e.g. a bromide) wherein X<SP>1</SP> is a residue which can be converted by hydrolysis, reductive cleavage or reduction into NH 2 ; (e) by heating an acid addition salt IX (Y is halogen); (f) by reducing a compound X in which R 1 <SP>1</SP> signifies C 3-5  alkenyl or optionally alkyl-substituted cycloalkenyl or cycloalkenylalkyl and X is as defined in (b); (g) by reacting a compound XI with a reactive diester of ethylene glycol; and (h) by reacting a compound XII with a reactive ester of a hydroxy compound R 1 OH. Compounds II, III, VII, IX, X, XI and XII are in general prepared by standard methods. Intermediates to compounds I, e.g. compounds wherein in place of NH 2  in I there is an NO 2 - or Me.CO.NH- group, may be produced by methods (a) to (h). N<SP>1</SP> - cyano - N4 - acetyl - sulphanilamide (as the sodium salt) is obtained by the interaction of disodium cyanamide and N-acetyl-sulphanilyl chloride. 4 - (2 - Imidazoline - 2 - ylsulphamoyl) - acetanilide is obtained by the interaction of N- acetyl-sulphanilyl chloride and 2-amino-2-imidazoline hydrochloride. Pharmaceutical preparations showing hypoglycaemic action contain I as active ingredient; administration may be orally or parenterally.
Patent GB-403864-A (GB)
Title: Improvements relating to electrical contact plugs or pins
IPC: H01R13/05
Filed: 1933-05-09
Abstract: 403,864. Plug couplings. KLEINMANN, E., and MENDEL, A., (trading as KLEINMANN, GEB.), 21, Wilhelmstrasse, Lichtenberg, Berlin. May 9, 1933, No. 13529. Convention date, Jan. 21. [Class 38 (i).] A split tubular plug made of thin sheet metal is provided with one or more pressed out enlargements each of which presents a substantially cylindrical surface to give an enlarged contacting area. As shewn in the figures two enlargements are provided. In Fig. 1 each of the enlargements has a number of radially spaced longitudinal slits 5 and 6 ; in Fig. 2 one slit only is provided and extends through both round enlargements whilst in Figs. 3 and 4 the enlargements have different diameters. In Fig. 3 the lower enlargement is the smaller and this facilitates introduction of the plug whilst in Fig. 4 the lower enlargement is the larger and cleans the inner surface of the socket. In the embodiments shown in Figs. 3 and 4 the compression of the larger diametered enlargement into the socket is stated to cause the smaller enlargement to spread and thus ensure a good contact at both surfaces.
Patent GB-135553-A (GB)
IPC: A61G13/02
Abstract: 135,553. Mote, L. D. Oct. 25, 1018. Bed-lifts.-A support for carrying invalids and which may be adapted for use as an operating or like table or as a chair comprises a top which can be placed flat on a bed mattress to receive the patient, and can then be moved away. The top A is secured at one side to uprights A<1> telescoping in supports B provided with castors to facilitate movement. Fig. 1 shows a collapsible table with folding top A and legs C. Fig. 5 shows the top A provided with hinged extensions E which may be made telescopic for extension, and with hinged side rails F. In another modification, the top is pivoted to the telescopic upright so that its inclination can be adjusted.
Patent GB-867403-A (GB)
Title: Improvements in or relating to cyanine dyes
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/08
Filed: 1958-04-29
Abstract: 2-Chloro-3 ;3-dimethyl-indolenine is prepared by refluxing 3 ; 3-dimethyl-oxindole with phosphorus pentachloride and distilling and fractionating the product.ALSO:Dicarbocyanine dyes of the general formula:-  <FORM:0867403/IV(c)/1> wherein R1 and R2 are hydrogen or alkyl, R3\t is alkyl, aralkyl or aryl, D completes a 5- or 6-membered heterocyclic ring, X is an anion and n is 0 or 1, are prepared by reacting a pyridine of the formula:-  <FORM:0867403/IV(c)/2> with a cyclammonium salt of the formula:-  <FORM:0867403/IV(c)/3> in the presence of a compound of the formula:-  <FORM:0867403/IV(c)/4> wherein R4 and R5 are alkyl groups and Hal is chlorine or bromine. If R1 and R2 are different, a mixture of dyes may be obtained having different substituents on the central carbon atom of the methine chain, since the pyridine ring can split in two different ways. Examples are given of the reaction of pyridine, b -picoline or 3 5; -lutidine with cyclammonium salts wherein D completes a benzthiazole, benoxazole, 2-quinoline, 3; 3-dimethyl-2-indolenin or 4-methyl-2-thiazole nucleus, in the presence of 2-chloro-3; 3-dimethylindolenine.  According to the Provisional Specification, dyes having a , a 1 dialkyl substituents in the methine chain are obtained by using cyclammonium compounds having alkyl groups other than a reactive methyl group in the a - or g -position.
Patent GB-1527836-A (GB)
Title: Auxiliary device for controlling and manoeuvring an aircraft
IPC: B64C9/00
Filed: 1977-03-31
Abstract: 1527836 Aircraft control surfaces DORNIER GmbH 31 March 1977 [24 June 1976] 13628/77 Heading B7G A structural member 4 for supporting an external load 6, such as an engine, fuel tank or jettisonable pod on a wing has the form of an aerofoil and is provided with a pivotable trailing edge flap 9, 10 which may be operable by the rudder pedals.
Patent GB-1041695-A (GB)
Title: Process for the preparation of aromatic carboxylic acids
IPC: C07C63/15
Filed: 1964-04-02
Abstract: Aromatic carboxylic acids are prepared by reacting a Me-, HOCH2- or HCO-substituted aromatic compound (any 2 or more such substituents not being in o-positions) with O2 at an O2-pressure of at least 1.5 kg./cm.2 absolute and 90-150 DEG  C., the compound being dissolved in at least a 6 molar excess of HoAc containing initially not more than 15% H2O, the reaction being effected in presence of at least 0.2 g.-atom Co (per mole aromatic compound) used as metal, organic acid salt or compound capable of forming the acetate and being initiated in absence of O3, Br2 or a bromide. A cocatalyst of Pb, Ni or Ag organic acid salt may be used additionally.
Patent GB-405669-A (GB)
Title: Improvements in the production of precipitated titanic oxide
IPC: C01G23/053
Filed: 1932-05-12
Abstract: The hydrolysis of a solution of a titanium salt such as the sulphate is effected after addition of titanic hydroxide which has been precipitated and then dispersed or peptised.  The dispersion, which preferably has a pH value less than 2 and is capable of passing through filter paper but not through a collodion membrane, may be prepared by boiling a dilute solution of a titanium salt, washing the precipitate and dispersing it with an acid such as nitric acid.  The hydroxide precipitated by the process may be wholly dispersed, a part be used for the hydrolysis of another batch of solution, and the remainder be worked up for use as a pigment.