baber/WOPTO huggingface dataset:
Patent GB-1111342-A (GB)
Title: Colour photographic materials
IPC: C08J9/24
Filed: 1966-01-27
Abstract: Monoazo dyes of formula <FORM:1111342/C4-C5/1> wherein R is a mononuclear aryl radical substituted with at least one alkoxy carbonyl group having at least 9 carbon atoms and R1 is a C1- 4 alkyl group are used as colour couples in photographic materials (see Division G2). The dyes are prepared by coupling a diazotized anthranilic acid ester with an appropriate naphthanilide (see Division C2).  The preparation of the following dyes is described: 1-hydroxy-4 - (2 - ethoxycarbonyl - phenyl - azo) - 2 -(4 - dodecyloxycarbonyl) naphthanilide, 1 hydroxy - 4 - (2 - propyloxy-carbonyl - phenylazo) - 2 - (4 - dodecyloxycarbonyl) naphthanilide, 1 - hydroxy - 4 - (2 - ethoxycarbonyl -phenylazo) - 2 - (2 - chloro - 5 - dodecyloxy -carbonyl) naphthanilide, 1 - hydroxy - 4 - (2 -ethoxycarbonyl - phenylazo) - 2 (2 - chloro-5-dodecyloxycarbonyl) naphthanilide, 1 -hydroxy - 4 - (2 - ethoxycarbonylphenylazo) -2 - (2 - methoxy - 5 - (2 - ethylhexyloxy-carbonyl)) naphthanilide and 1-hydroxy-4-(2 - ethoxycarbonyl - phenylazo) - 2 - (3,5 -dioctyloxycarbony) naphthanilide.ALSO:1 - Hydroxy - 2 - (4 - dodecyloxycarbonyl)-naphthanilide is prepared by reacting ethyl 4-amino benzoate with n-dodecyl alcohol in the presence of titanium butoxide to give dodecyl 4-amino-benzoate and converting the latter to the naphthanilide with 1-hydroxy-naphthoic acid phenyl ester.  1 - Hydroxy - 2 - (3,5 - dioctyloxy carbonyl) naphthanilide and 1 - hydroxy - 2 - [2 - methoxy - 5 - (2 - ethylhexyloxycarbonyl)] naphthanilide are prepared similarly using dioctyl 3 - aminoisophthalate (obtained from dimethyl 3 - aminoisophthalat and n - octyl alcohol) or 2 - ethylhexyl 3 - amino - 4 - meth-oxybenzoate (obtained from 2-ethylhexanol and methyl 3 - amino - 4 - methoxy - benzoate). 1 - Hydroxy - 2 - (2 - chloro - 5 - dodecyloxy-carbonyl) naphthanilide is prepared by reacting dodecyl 4 - chloro - 3 - amino - benzoate with hydroxy naphthoic acid phenyl ester.
Patent GB-124420-A (GB)
Title: Improvements in and relating to Drive Mechanism for Airships, Aeroplanes and the like.
Inventor: STEWART JAMES ALBERT
IPC: B64C29/00
Filed: 1919-02-14
Abstract: 124,420. Stewart, J. A. March 20, 1918, [Convention date]. Propelling; steering and regulating altitude.- In a propelling-arrangement in which the propellers can be turned into either a vertical or a horizontal direction, the drive is communicated from the shaft 6 through flexible connexions 7 to tho propeller-shafts 4, upon which the drivers 11 are secured ; and collapsible lifting-fans 14 are mounted upon a sleeve 12 which is normally free on the shaft. The whole system can be rotated in the base 1 until the shafts 4 are horizontal. The cable 22 can be operated to move sleeves 17, by which the lifting-propellers 14 are first expanded and then brought into action by the engagement of the parts 13, 9.
Patent GB-1144995-A (GB)
Title: Improvements in or relating to telecommunications for the interconnection of two-wire and four-wire lines
IPC: H04Q3/00
Filed: 1968-01-24
Abstract: 1,144,995. Automatic exchange systems. SIEMENS A.G. 24 Jan., 1968 [25 Jan., 1967], No. 3711/68. Heading H4K. In an exchange comprising 2-wire lines of different impedance and also 4-wire lines, in the case of an interconnection between a 2-wire line and a 4-wire line, the controlling marker chooses a hybrid circuit having a balancing network of suitable impedance, or adjusts the impedance of the balancing network to the correct value.
Patent GB-1202984-A (GB)
Title: New water-insoluble azo dyes
IPC: C09B29/033
Filed: 1968-01-25
Abstract: 1,202,984. Monoazo dyestuffs. BADISCHE ANILIN- & SODA-FABRIK A.G. 25 Jan., 1968 [26 Jan., 1967], No. 3925/68. Heading C4P. The invention comprises dyes of the general formula wherein D is a diazo component radical which may contain an azo group, R<SP>1</SP> and R<SP>2</SP> are H, halogen, alkyl, alkoxy, carboxy, carbalkoxy, carbamoyl or N-alkylcarbamoyl, provided that R<SP>1</SP> and R<SP>2</SP> are not both carboxy groups; Y is H, halogen, alkyl, alkoxy, or dialkylamino; and X is H, carbalkoxy, acyl, alkylsulphonyl, arylsulphonyl, carbamoyl, N-alkyloarbamoyl' N,N-dialkylcarbamoyl or N-arylcarbamoyl. Especially preferred dyes have the general formula wherein D<SP>2</SP> is a diazo component of the benzene, benzothiazole, benzoisothiazole or thiadiazole series, X<SP>2</SP> is acetyl, propionyl or omega-chlorocuproyd, and Y<SP>2</SP> is H, Cl, Br, methyl, ethyl, methoxy or ethoxy. They are prepared by diazotization and coupling. The dyes give orange, red, violet, blue and brown shades in polyesters, cellulose esters and polyamides.
Patent GB-1098002-A (GB)
Title: Collagen-containing fibrous articles
IPC: D04H1/42
Filed: 1965-01-29
Abstract: An article comprises non-collagenous fibres that can be wet-assembled and 0.1 to 5% of collagen distributed throughout the non-collagenous fibres and binding them together.  The article may be a fibrous sheet or a yarn.  The non-collagenous fibres may be wood-pulp fibres or short rayon staple fibres.  The collagen may also be present in fibrous form.  The article may be made by dispersing the non-collagenous fibres in water, adding an aqueous dispersion of collagen at a pH of 3 to 5, precipitating the collagen on to the non-collagenous fibres, e.g. by adding ammonia to raise the pH to 7, and removing the aqueous medium.  When making a yarn, the dispersion of non-collagenous fibres may be caused to flow through a narrow channel to align the fibres, the dispersion of collagen is added to the flowing aligned fibres and precipitated by raising the pH, and the non-collagenous fibres with collagen precipitated thereon are removed from the flowing medium in the form of a yarn and dried. Sheets may be made on a Fourdrinier machine, by feeding to the headbox separately prepared dispersions of collagen and non-collagenous fibres, with enough ammonia to precipitate the collagen.  In the Example, collagen from which the elastin has been removed is swollen in an acid solution containing cyanecetic acid to form a dispersion of fibres.  Separately rayon fibres are dispersed in water.  The two dispersions are mixed in a container with a fabric bottom and the pH raised to 7 by adding ammonia.  The collagen precipitates and the water is drained off.  The fibrous mass is air-dried and removed from the fabric.  The product may be used as a wiping cloth or absorbent dressing.
Patent GB-1490473-A (GB)
Title: Infra-red radiation device
IPC: F42B4/26
Filed: 1976-02-02
Abstract: 1490473 Chaff DYNAMIT NOBEL AG 2 Feb 1976 [29 March 1975] 04053/76 Heading F3A [Also in Division H4] Chaff for protecting an aerial object and which is capable of both reflecting radar beams and generating infra-red radiation, comprises strips of metal foil having a smokeless propellant charge in direct contact with one side thereof, and, on the opposite side, a darkcoloured layer or coating. The strip may be folded so as to enclose the propellant with the dark coloured layer positioned on the outside of the strip. The foil is formed of magnesium, aluminium, copper or an alloy and is no thicker than 0À2 mm.
Patent GB-1095642-A (GB)
Title: Wood preservatives
Inventor: BAUER DIETER
IPC: B27K3/32
Filed: 1965-01-29
Abstract: A wood preservative for use against vegetable and animal pests comprises 20 to 80% by weight of an alkali metal or ammonium dichromate and/or an alkali metal or ammonium chromate and/or chromic acid, 0 to 40% by weight of an alkali metal or ammonium arsenate and/or an alkali metal or ammonium meta-arsenate, and 20 to 80% by weight of one or more water-soluble fluorides, part of the water-soluble fluoride being present in the form of the fluoride hydrate of cobalt and/or nickel.  The water-soluble fluorides preferably comprise neutral and/or acid alkali metal fluorides, boron fluorides and/or silicofluorides, e.g. NH4, Mg or Zn silico fluorides.
Patent GB-193054-A (GB)
Title: Improvements in or relating to photographic film cartridges and protective leading strips or backings therefor
IPC: G03C3/02
Filed: 1922-04-26
Abstract: 193,054. Kodak, Ltd., (Assignees of Jones, J. G.). July 25, 1921, [Convention date]. Roll-spools.-To prevent edge fogging the backing paper D, Fig. 1, or leading-in protecting strip of a roll film cartridge is made wider than the distance between the spool flanges B, and one or both edges D<1> are serrated. The marginal edge or edges of the backing or end strip may also be bevelled and reduced in thickness, as shown in Fig. 2.
Patent GB-771259-A (GB)
Title: Improvements in bed-settees
IPC: A47C17/23
Filed: 1955-02-11
Abstract: 771,259. Bed-settees. BEBRY BEDDING CORPORATION. Feb. 11, 1955 [Nov. 10,1954], No. 4143/55. Class 52 (2). A bed-settee has a fixed frame 10, with a back 12 and side panels 13, 14 serving as arm rests, into which folds a frame 11 composed of an outer seat forming section 17, an inner section 18 and intermediate sections 19, 20, latch members 63 on sections 17, 19 latching the section 17 above section 19 in folded position. Outer legs 40 are pivoted on pins 43 and side plates 44 fixed thereto are connected by links 45 with a foot extension 46 and by links 47 with the section 20, a front panel 55 on links 56, 57 being movable by links 58 connected to links 47. The side plates 44 have slots 65 which are engaged by tongues 68 of spring urged latch members 63 in the folded position. When unfolding the latch members 63 are swung out of engagement by arms 7.2. which engage lugs 73. Intermediate legs 41 are connected by links 83, 84, 85, 86 to links 79 by which the section 18 is connected to the side panels 13, 14 so that the legs are folded as the section 18 moves into the frame 10.
Patent GB-398484-A (GB)
Title: Improvements in starting mechanism for internal combustion engines
IPC: F02N1/00
Filed: 1932-02-12
Abstract: 398,484. Turning-gear. WHITAKER, T. and WHITAKER, J., 14, Russell Street, Keighley, Yorkshire. Feb. 12, 1932, No. 4152. [Class 7 (v).] In a starting device in which a clutch member b on the shaft a of the starting handle is disengaged from the clutch member c<1> on the engine shaft on backward rotation of the engine shaft, a ring member k mounted on the shaft a has ratchet teeth k<1> for engagement with notches m in the face of a ring member f freely rotatable on the shaft a. The member f also has peripheral ratchet teeth f<1> engaged by spring- pressed pawls g slidable in the bearing B. If the engine back-fires when started, the member f is held by the pawls g, and the shaft a is moved axially to disengage the clutch members b, c<1> by the interengaging inclined faces of the teeth k<1> and notches m.
Patent GB-429123-A (GB)
Title: Improvements in or relating to boxes or similar containers
IPC: B65D5/66
Filed: 1934-02-08
Abstract: 429,123. Boxes &c. CHAD VALLEY CO., Ltd., Harborne, and WHITEHOUSE, F. R. B., Fairdays, Barlows Road, Edgbaston, both in Birmingham. Feb. 8, 1934, No. 4202. [Class 18] A box &c. particularly for jig-saw puzzles, where it is desired to assure the purchaser that the contents are intact, comprises two parts 5, 6 movably or hingedly associated, each part having a tape &c. 11, 12, the tape &c. 12 on the one part 6 being adapted to be sealed, at 14, initially in a position retaining the parts 5, 6 closed with the tape &c. 11 on the other part 5 enclosed within the box &c., but after the seal has been broken the two parts 5 6 may be subsequently retained in the closed position by tying &c. the tapes &c. 11, 12 on the parts 5, 6.
Patent GB-1083089-A (GB)
Title: Spiral wrapper machine for tobacco products
IPC: A24C1/30
Filed: 1965-08-02
Abstract: The Specification describes the same apparatus as that described in Specification 1,083,088 but the claims are directed to the wrapper web and rod guiding means.
Patent GB-707019-A (GB)
Title: Carburetor
IPC: F02M9/08
Filed: 1952-02-18
Abstract: 707,019. Spray carburetters. POTHIER. A. C. Feb. 18, 1952, No. 4237/52. Class 7(3) A throttle valve 25 controlling the flow through an induction conduit 21 is rotated by means of a sleeve 48 frictionally connected to allow for relative adjustment. by a split collar 45 to a needle valve 41 fitted in a fuel supply conduit 14 so as to control the flow through a radial opening 40 into the conduit 21, a screw thread 43 on the valve causing axial movement thereof whereby flow of air and fuel are simultaneously controlled. In the closed position of the valve 25, recesses 28, 29 formed by a reamer passed through the bore at an angle of 15 degrees allow passage of air for idling. An attachment screw 35 for a cover 35<1> co-operates with arms 36, 37 and an adjusting screw 38 to determine the extreme positions of the valve 25.
Patent GB-1241930-A (GB)
Title: Contact member for electrical connector
IPC: H01R13/115
Filed: 1970-01-29
Abstract: 1,241,930. Two part couplings. INTERNATIONAL STANDARD ELECTRIC CORP. 29 Jan., 1970 [3 Feb., 1969], No. 4239/70. Heading H2E. A socket contact as described in Specification 1,066,109, is modified in that the contact 100 comprises three separate portions, each portion being made of material chosen for desired characteristics. The sleeve 146 is made of stainless steel or copper alloy. The tubular spring member 130, slotted at 136 to form a plurality of resilient fingers 142, is made of beryllium-copper, a phosphor-bronze alloy or a cadmium-copper alloy which combines good conductivity with good spring characteristics. The terminating member 113 is made of copper alloy for crimping purposes. The members are brazed or soldered together; the sleeve 146 may be a force fit. In a further embodiment, Fig. 3 (not shown), the terminating member (153) is butt welded to a conductor (156), the material being chosen accordingly.
Patent GB-163119-A (GB)
Title: Improvements in the manufacture of metal walling, panelling and the like
IPC: B61D17/08
Filed: 1920-02-12
Abstract: 163,119. Metropolitan Carriage, Wagon, & Finance Co., Ltd., and Greg, J.R 12. Feb. 12, 1920. Doors for passenger vehicles. Metal panels, plates, walls, &c., as in steel railway coach construction, are connected to each other or to the mouldings or surrounds of window frames &c. by grooved, rolled, or extruded members, such as a, having a shoulder k against which the panel c backs, and a recess l to receive a locking strip d, the junctions being finished by squeezing &c. with hydraulic or compressed air tools. A guide and stay f is also fixed in a groove as shown. The open or bottom end of the member a is closed by a sill or fence rail g<2>. The edges of the plates &c. may be thickened before insertion in the grooves.
Patent GB-1278901-A (GB)
Title: Method of producing poly-n-alkylhydrazide
Inventor: SEKIGUCHI HIDEO
IPC: C08G73/08
Filed: 1970-01-29
Abstract: 1278901 Coatings FURUKAWA DENKI KOGYO KK 29 Jan 1970 4380/70 Headings B2E [Also in Divisions B5 and C3] Coatings contain a resin containing N-alkylhydrazide units where R is a C 2-4  alkyl, is made by reacting, in conc. H 2 SO 4 , an oxadiazole polymer Q with S, being RHSO 4 , R 2 SO 4 , a precursor P thereof, or R<SP>+</SP> cation. The reaction temperature may be 10-80‹C. The reation is Q contains 1, 3, 4-oxadiazole units V and has inherent viscosity 0.3 in a 0.5% Q solution in 95% wt. H 2 SO 4  at 30‹C. In Examples (3) and (10) a 15% solution of A in cresol/naphtha or in cresol is baked on Cu wire of 1 mm diameter to give an insulating coating 50Ám thick.
Patent GB-961844-A (GB)
Title: Improvements in or relating to electrical counting circuits
Inventor: SCARR ROBERT WALTER ALISTER
IPC: H03M1/00
Filed: 1961-02-06
Abstract: 961, 844. Electronic counting apparatus. STANDARD TELEPHONES & CABLES Ltd. Feb. 2, 1962 [Feb. 6, 1961], No. 4382/61. Heading G4A. [Also in Division H3] A multistable state circuit includes a series arrangement of tunnel diodes TDI.... TDn, all having different peaks currents, supplied with a constant current greater than the greatest valley current, and smaller than the smallest peak current, and is supplied with an input pulse to switch from its low voltage state to its high voltage state, that tunnel diode of lowest peak current which is in its low voltage state. As described, a pulse applied at "INPUT" switches a tunnel diode TD to its high voltage stage producing a pulse which is given an exponential rise time by inductor L, and which is used to trigger on transistor X1. The change in collector current causes one of the tunnel diodes TDI.... TDn to switch to its high voltage state, and in so doing, it produces a feedback via diode D2 which resets tunnel diode TD ready for the next input pulse. When the last tunnel diode TDn in the chain switches, transistor X2 conducts resetting the chain of tunnel diodes to their low voltage state and producing an output pulse. The circuit described may form a scaling circuit or may be used as an analogue to digital converter. Specifications 961,845 and 961,846 are referred to.
Patent GB-1468263-A (GB)
Title: Apparatus for heating of fluids
IPC: F22B1/28
Filed: 1974-01-30
Abstract: 1468263 Fluid flow heater ATOMENERGI AB 30 Jan 1974 04390/74 Heading H5H A fluid flow heater comprises an electrically conducting inlet pipe 1 connected by a plurality of resistively heated pipe sections 5 having fluid flow restrictions therein to an electrically conducting outlet pipe 2, and a polyphase source having n-phases wherein each phase is electrically connected to 1/n of the number of pipe sections 5 at the electric central points thereof, the number of pipes being a multiple (other than n itself) of n. As shown in Figs. 1 and 2 a three phase source supplies a heater with thirty six pipe sections. Each section is provided with an inlet flow restriction to equalize the pressure drop. There bus-bars 13, 14, 15 supported by insulators 17 on a frame 3 are connected by flexible straps to the centre points of the respective coil sections. Stays 10 partially support the pipe sections 5. The inlet 1 and outlet pipe 2 are electrically connected together and may be earthed or connected to the neutral of a star connected current source. In an alternative construction, Fig. 3-5, each pipe section 5 is supplied by an individual strip bus-bar, and the bus-bars, which are flat and laid face to face, are provided with intervening insulating spaces and cooling air gaps. From above the bundle of bus-bars is tapered in a direction parallel to pipes 1 and 2 and the bars are connected in a repetitive sequence to the respective phases of a three phase transformer. A clamp structure locates the bus-bars and spacers at one end. The heater may heat water to produce steam for heating up nuclear reactors for pre-critical tests.
Patent GB-105236-A (GB)
Title: Improvements in Poultry Feeders.
Inventor: JACOBUS MARTIN RYERSON
IPC: A01K39/012
Filed: 1917-03-27
Abstract: 105,236. Jacobus, M. R. March 20, 1916, [Convention date]. Feeding-appliances for animals.-A poultryfeeder in which the food receptacle 12 is supplied by a hopper 10 has hinged co the front of the receptacle 12 a waste trough 14 adapted to receive the food thrown or dropped by the birds. Access to the contents of this trough is prevented by a rod 15 or a grating. When sufficient food has accumulated in the trough 14, it may be tipped into the main receptacle by swinging the trough on its hinges to the position shown in dotted line. In this position, the trough closes the feeder and prevents the access of vermin to the food. A grating 25, carried by a bar 26 pivoted in the sides of the feeder, is provided in front of the feeder and is held against the trough 14 in both its extended and closed positions by a spring 29. In a modification, the trough 14 is separated from the main receptacle by a hinged vertical partition.
Patent GB-1242206-A (GB)
Title: Method for detecting circuit discontinuities
IPC: G01R31/58
Filed: 1970-01-30
Abstract: 1,242,206. Laminates. P.P.G. INDUSTRIES Inc. 30 Jan., 1970 [31 Jan., 1969; 31 Dec., 1969], No. 4461/70. Heading B5N. [Also in Division G1] A lamina structure 15, Fig. 2, comprising a layer of cholesteric-phase liquid-crystal material 17 sandwiched between two flexible transparent plastics layers 16, 18 is temporarily fixed to a windscreen G, Fig. 1, by an adhesive layer 19, so that defective heating elements 12 embedded in, or on the surface of, the windscreen, can be located-operative heating elements 11 causing a colour change in the liquid crystals. Preferably the liquid crystals have a colour range of from 20 to 30 C. which can be achieved by using appropriate mixtures, for example of cholesteryl myristate and cholesteryl butyrate. Alternatively, in order to cover a large temperature range, the layer of liquid crystals may consist of strips of different liquid crystal material having different temperature ranges.
Patent GB-624082-A (GB)
Title: Improvements in coke ovens
IPC: C10B21/20
Filed: 1946-02-13
Abstract: 624,082. Coke-ovens. KOPPERS CO., Inc. Feb. 13, 1946, No. 4530. Convention date, Nov. 8, 1945. [Classes 55 (i) and 55 (ii)] A method of controlling the temperature in the free space above the charge in a coke-oven comprises exhausting the gas from one end of the oven, cooling the gas and returning sufficient of the cooled gas to the other end of the oven for re-circulation through the gas space, the direction of flow of the circulating gas being preferably reversed at intervals. In an application to a coke-oven of the type described in Specification 278,012, [Class 55 (i)], the coke-oven 10 has ascension pipes 20 or 22 through which the gases pass to the collecting main 24 where it is cooled by a spray of ammoniacal liquor to approximately 80‹ C. The cooled gas flows through the off-take main 28 to a T 30 and a suction main 34 with a control valve 32 operated by the governor 36, the gas not required for cooling passing off through the main 34. Impulse lines 38 and 40 provided with valves 42 and 44 are connected from the governor 36 to the collecting mains 24. Fans 46 and 58 placed in the off-take mains 28 to circulate the gas are driven by variable speed motors and are connected electrically to a timing device 50 which operates a switch 52 so that when the fan 46 is operating fan 58 is stationary and vice versa, and also a switch 60 which opens or closes the valves 42 and 44 such that when the valve 42 is open, 44 is closed and vice versa, valve 42 being open when the fan 46 is in operation and valve 44 when the fan 58 is in operation so that the control valve 32 is actuated in response to the pressure obtaining in that collecting main which is supplying gas to the gas spaces of the ovens. The reversal of direction of flow of the gas can be made at any desired interval from 2-60 minutes and the speed of the fans 46, 58 is adjusted to maintain a temperature in the gas spaces of about 800‹ C. In a modification positive pressure blowers mounted in a bye-pass in the off-take mains 28 replace the fans 46, 58.
Patent GB-895303-A (GB)
Title: Underground oil recovery system
Inventor: HAAN HENDRIK JAN DE
IPC: E21B43/24
Filed: 1961-02-07
Abstract: 895,303. Well treatment. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb. 7, 1961, No. 4530/61. Class 85. In a method for recovering viscous oil or tar from an underground formation 1 by injecting, through at least one borehole 2 extending to the formation, steam that reduces the viscosity of the oil or tar and drives it through the formation to a further borehole or holes 3 up which the oil is removed from the formation, means are incorporated in the boreholes 3 to allow of steam being applied to the formation 15 around said boreholes at a level higher than the level at which the oil or tar is withdrawn from the formation 1. Preferably both boreholes are cased, the borehole or holes 3 having concentric casings 8, 12 that allows of steam being passed down through the casing 8 to ports 10 to emerge therefrom into the formation, whilst the collected oil or tar is drawn up through the casing 12.