baber/WOPTO huggingface dataset:
Patent GB-1003966-A (GB)
Title: Process for the preparation of laminates from fibrous materials
IPC: C08J9/36
Filed: 1963-05-03
Abstract: Woven and/or non-woven fibrous fabrics are laminated with an adhesive solution of a urethane pre-polymer having NCO terminals blocked with a blocking agent selected from imines, oximes and ketoximes, having a molecular weight of 400/6000, and an NCO: blocking agent ratio of from 1 to 2, and containing a sufficient quantity of a curing agent having reactive hydrogen terminals to provide an NCO: active hydrogen ratio of from 0.5 to 2. The adhesive compound preferably contains up to 5 parts by weight of a cure accelerator and 50 parts by weight of a filler per 100 parts by weight of unblocked prepolymer.  The adhesive is applied to one or more of the surfaces to be contacted and the coated surfaces are lightly pressed together to produce a partial penetration and temporary adherence of the layers. The adhering layers are then heat-treated at 175/400 DEG  F. to unblock and heat cure the prepolymer and effect a permanent bond.  The initial tackiness of the adhesive may be varied by using partially blocked and partially cured prepolymers or by adding fillers such as silica. The urethane prepolymers may be derived from esters or ethers, esters being preferred, particularly those prepared from ethylene glycol/propylene glycol/adipic acid mixtures or castor oil. Diisocyanates usable are toluene diisocyanate, diphenyl diisocyanate, 1-5 naphthalene diisocyanate and hexamethylene diisocyanate. Blocking agents usable include ethylene imine, propylene imine, acetophenone oxime butylraldoxime, methyl methyl ketoxime, cyclohexanone oxime and methyl ethyl ketoxime, the last being preferred.
Patent GB-583854-A (GB)
Title: Improvements in portable electric flash lamps
IPC: F21L4/00
Filed: 1943-10-26
Abstract: 583,854. Battery lamps. FRANK, J. Oct. 26, 1943, No. 17666. [Class 39 (ii)] The casing of a portable lamp is constructed of a plastic material capable of conveying light from the edge 11 of an aperture containing the lamp 12 throughout the casing 10. A cellulose acetate incorporating a light responsive material may be used but preferably a polymerized ester of acrylic or methacrylic acid is employed. The lamp is carried by a split ring forming a right-angled projection at one end of a conducting strip 18 and a spring controlled plunger 23 slides in a second right-angled member 15. The batteries are held between one lamp contact 33 and a perforated fibrous washer 28 secured to the spring 25. Pressure on the plunger causes it to engage the battery in which position it may be held by engaging a recessed portion 38 of it with the edge of an opening in a cap 39 screwed on the casing. For signalling or identification purposes the casing may be coloured by a reflecting lining or coating or by other means and stencils may be applied thereto. An opaque cap 53 may be used to cut off or reflect internally the direct illumination and the lamp may stand upon the flat surface 56 thereof.
Patent GB-793088-A (GB)
Title: Acridan derivatives
IPC: C07D219/14
Filed: 1956-06-07
Abstract: Acridan derivatives which are substituted at the nitrogen atom by the group -alkylene-NR1R2 (wherein R1 and R2 are alkyl groups, which may be closed to form a piperidine, piperazine, or morpholine ring) are prepared by heating acridone (which may be substituted by halogen atoms or alkyl or alkoxy radicals) with caustic alkali in an inert solvent to form the alkali metal salt, reacting said salt with a compound halogen-alkylene-NR1R2 and treating the N-substituted acridone thus obtained with alkali and with zinc or aluminium, thereby reducing the carbonyl group.  The caustic alkali is preferably powdered NaOH or KOH, used in benzene, toluene, xylene, or tetrahydro- or decahydro-naphthalene as solvent for the acridone, while the reduction step is preferably effected with Zn or Al in sodium, potassium or calcium hydroxide, or in ammonia in aqueous or aqueous-organic media.  In examples: acridone and powdered KOH are mixed in decahydronaphthalene, the mixture distilled azeotropically and then treated dropwise with 1-dimethylamino-2-chloropropane yielding N - (b  - dimethylamino - a  - methyl ethyl)-acridone, which is then autoclaved with Zn dust and caustic soda lye or aqueous ammonia and N-(b -dimethylamino-a -methylethyl)-acridan isolated by extraction with benzene; (2) as in (1) but using 1-diethylamino-2-chloroethane to yield N-(b -diethylaminoethyl) acridan, adding ethanol to the reducing medium to increase solubility of the reactants; (3) as in (1) but using b -piperidinoethyl chloride, and reducing the intermediate N-(b -piperidinoethyl)-acridone to the acridan with aluminium in aqueous methanolic NaOH.
Patent GB-1125875-A (GB)
Title: Detachable connection
Inventor: BENNOVSKY HEINZ
IPC: H01R9/05
Filed: 1967-04-18
Abstract: 1,125,875. Sleeve connectors. " OTTO BUCHWITZ " STARKSTROM - ANLAGENBAU DRESDEN, VEB. 18 April, 1967, No. 17764/67. Heading H2E. In a detachable connector for conductors 1 which are insulated with solid material 13, a threaded metal sleeve 9 and threaded metal rings 11 provide the securing means, while each conductor end accommodates a pressure cone 4 which co-operates with a split contact sleeve 6 to provide the electrical connection. The pressure cones sit in bores 2 in the conductor ends and force is applied to them via pressure springs 3. The clamping force applied to the cones is transmitted by the metal rings 11 via annular springs 15 in the solid insulation 13. An elastic rubber ring 7 is provided between the solid insulation sections 13 and is held in position by two limit rings 8. To provide a conduotive connection between the metal earth coatings 18 on insulation 13, a polygonally bent contact spring 17 inserted in a groove 16 in each threaded metal ring 11 connects the coating to these rings, the connection being completed by sleeve 9.
Patent GB-1305365-A (GB)
IPC: H04Q3/00
Filed: 1971-05-28
Abstract: 1305365 Automatic exchange systems L M GIMBERT 28 May 1971 [29 May 1970] 17795/71 Heading H4K In an exchange having some subscribers who must be given priority in an emergency situation, certain trunks are equipped with m-out-ofn binary code receivers which in response to the appearance of the code on the trunk cause the trunk to be connected by a change-over relay direct to a specified priority subscriber's line circuit. The trunk is pre-empted irrespective of whether or not it is already in use. Both ends of the trunk are switched to predetermined priority subscribers simultaneously. The code consists of an initial D.C. signal lasting 5 seconds which is detected via a full wave rectifier bridge and a transistor amplifier by a pair of slugged relays. Once these relays have responded, the detector is held until a 20-second clearing signal is counted by a further pair of relays. The main portion of the code consists in a particular order of two long 700 msec. pulses and three short 200 msec. pulses. The pulses are applied to a relay counting chain in which two relays, only, must operate to the long pulses. The two relays must correspond to particular positions in the five pulse series otherwise the detector is inhibited and transfer of the trunk does not take place. By utilizing different pulse series, the trunk may be connected to alternative subscribers.
Patent GB-152433-A (GB)
Title: Improvements in suspenders for stockings, socks and the like
IPC: A41F11/02
Filed: 1919-07-16
Abstract: 152,433. Syer, C. S. July 16, 1919. Clips, fiexible-jaw.-In a clip for suspenders for stockings, socks, etc., a strip of spring steel is bent to form jaws a, b and a housing c, which receives a loop for attachment to the adjustable band connected to the corset. The jaws a, b are provided with rubber gripping- blocks f, g, retained in position by flanges d, e, the jaws being closed by a lever k pivoted at l in brackets m, formed integral with the lower jaw b. The surfaces of the blocks f, g may be serrated to increase their gripping effect.
Patent GB-1263247-A (GB)
Title: Improvements in apparatus for controlling the tension in flexible material
Inventor: BONIKOWSKI ZBIGNIEW
IPC: D07B7/14
Filed: 1968-04-16
Abstract: 1,263,247. Covering cores by winding. BRITISH INSULATED CALLENDERS CABLES Ltd. 16 April, 1969 [16 April, 1968], No. 17823/68. Heading B8G. [Also in Divisions D1, F2, G3 and H3] An apparatus for controlling the tension in elongated flexible material 6 as it is being drawn from a supply drum 2 or over a capstan and lapped around a core, comprises an electromagnetically operated friction brake 13 acting on the drum or capstan, a high gain D.C. amplifier capable of supplying the whole of the electrical power for operating the brake and having in its input circuit a variable impedance 12 the value of which is varied in accordance with the position of the sensing device 5 which moves in accordance with changes in tension in the flexible material against a substantially constant biasing force 9, and means for stabilizing the system to prevent hunting. The sensing device 5 may be a dancer roller. The substantially constant biasing force may be by pneumatic means or spring means. The high gain D.C. amplifier may be a multi-stage transistor amplifier with an overall feedback circuit. A preferred construction of the electromagnetic brake is described but not illustrated.
Patent GB-1009409-A (GB)
Title: Pulsing circuits for gaining access to matrix arrays
IPC: G06F1/04
Filed: 1962-05-09
Abstract: 1,009,409. Circuits employing bi-stable magnetic elements. WESTERN ELECTRIC Co. Inc. May 9, 1962 [May 15, 1961]. No. 17824/62. Heading H3B. To prevent elements of a storage matrix being switched by currents in adjacent conductors a current flowing in one column winding causes a reverse current to flow in both the adjacent column windings, thus compensating for the effect of the current in the first column on cores in adjacent columns. In the embodiment described on inverted twistor array (i.e. a twistor array in which words are stored along a twistor wire) has the column windings of copper tape supplied by the pulse circuit shown in Fig. 2. The windings 4 are divided into two sets of pairs of adjacent conductors one set of which has a common load resistor 17 for each pair and the other set of which has a common transformer circuit for each pair. Thus, if voltage source V j-1  is energized a current is caused to flow in the two adjacent windings by the common load resistor 17 and the primary winding 18 respectively so as to compensate for the effect of the original current. Specification 877,731 is referred to.
Patent GB-266981-A (GB)
Title: Improvements relating to the electric arc welding process
IPC: H01C1/082
Filed: 1926-07-16
Abstract: 266,981. Kassteen, W. July 16, 1926. Heating by electricity.-Arc welding is effected without a special dynamo by using a resistance immersed in a cooling liquid. The resistance may consist of galvanized iron spirals immersed in water in a wooden casing provided with zinc conducting leads.
Patent GB-422048-A (GB)
Title: Improved means for adjusting the shoes of internal expanding braking mechanisms
IPC: F16D65/42
Filed: 1933-06-23
Abstract: 422,048. Adjusting brakes. PRATT, J. H., and MANLEY, G. E., Guildhall Buildings, Navigation Street, Birmingham. June 23, 1933, No. 17893. [Class 103 (i)] In an internalexpanding brake, having shoes 3, pivoted on slidable members 4 adjusted in position by the tapering head 7 of a screw member 7<c>, the engaging faces of the head 7 and the members 4 are inclined plane surfaces in order to minimize wear. The members 4 and shoe 3 having arcuate engaging surfaces 4a to allow pivoting or they may be connected by trunnions. Specification 314,607, [Class 103 (i)], is referred to.
Patent GB-202285-A (GB)
Title: Method of making connections in wire ropes and the like
IPC: H01R43/042
Filed: 1923-07-11
Abstract: 202,285. Heddernheimer Kupferwerk und S³ddeutsche Kabelwerke Akt.- Ges. Aug. 12, 1922, [Convention date]. Wire and rod couplings; joints with yielding sleeve compressed.-The ends of tubes, wires, or rods to be coupled together are inserted in a metal tube, which is thereupon contracted upon the ends by drawing dies from the middle of the tube towards the ends thereof. The connection may be surrounded by a second tubular casing similarly applied, and the ends to be connected may be provided with indentations &c. adapted to be pressed into the surrounding tube. A portable machine for effecting the connections comprises a pair of divided draw-plates g<1>, g<2> clamped between members d<1>, d<2>. e<1>, e<2> upon the tube h, which surrounds the ends i<1>, i<2> of the wire &c. The members d<1>, d<2> are drawn apart by the rotation of a right and left handed screw b<1>, b<2>.
Patent GB-237889-A (GB)
Title: Improvements in mixing and kneading apparatus
IPC: B01F27/75
Filed: 1925-07-15
Abstract: 237,889. Levy, L. R. July 29, 1925, [Convention date]. Stationary batch-mixers with rotary stirrers.- .A mixing and dough-kneading machine comprises a rotating cylindrical or stationary hemi-spherical trough in which freely mounted rollers carried on radial arms are rotated, a central cylinder being provided which is of relatively large diameter and leaves a small clearance between itself and the rollers. In the form shown the central cylinder is omitted and the hemi-spherical trough 1 in which are rotated the beater, consisting of rollers 5, 6 mounted on arms 7, is tiltably mounted for discharging. The central cylinder may be driven oppositely to the beaters. The rollers 5, 6 may be mounted in slots in the arms 7 under spring influence. According to the Specification as open to inspection under Sect 91 (3) (a), the central cylinder may be omitted or replaced by a paddle. 'This subject-matter does not appear in the Specification as accepted.
Patent GB-163611-A (GB)
Title: Improvements in cooling internal combustion engines
IPC: F01P5/08
Filed: 1920-07-02
Abstract: 163,611. Campbell, A. July 2, 1920. Cylinders, cooling. -The radiating fins E, E<1> are made hollow and air is drawn through them bv the exhaust gases escaping from a nozzle F into the pipe G.
Patent GB-116652-A (GB)
Title: Improvements in or relating to the Dyeing of Slubbing Yarn and the like, and in Apparatus therefor.
Inventor: CRAYTON PATRICK
IPC: D06B5/00
Filed: 1917-12-07
Abstract: 116,652. Crayton, P. Dec. 7, 1917. Circulating o r passing fl u i d s through materials. -Slubbing, yarn, &c. is dyed in an upright box A provided with a perforated bottom B and top C and divided by perforated loose shelves D into a series of superposed chambers G. The slubbing is unwound from the tops into the chambers G and is maintained in one continuous length by being passed through a central opening F in each shelf, so that it can be rewound direct from the box. The box is placed in a dyeing-machine having a circulation maintained by pumps or propellers. The box is provided with upright slots H in the sides, which are closed by slides I when the liquor is circulated in an upward or downward direction, but are left open when the circulation is in a lateral direction.
Patent GB-307673-A (GB)
Title: Fastenings for cables and casings
IPC: H02G3/32
Filed: 1928-06-22
Abstract: 307,673. General Electric Co., Ltd., and Cron, H. W. June 22, 1928. Clips, sheet-metal. - A spring clip 1, for securing electric cables to walls and ceilings, is adapted to be secured to a wall by a screw, and is formed with pairs of spring arms 2, 4, the outer pair 2 gripping the cable casing and the inner pair 4 gripping the cable lying in the casing. The clips are first fixed to the wall, the cable placed in the arms 4 and the casing then applied.
Patent GB-1462468-A (GB)
Title: Operation of mercury-cathode electrolysis cells
IPC: C25B1/36
Filed: 1974-04-26
Abstract: 1462468 Brine IMPERIAL CHEMICAL INDUSTRIES Ltd 4 April 1975 [26 April 1974] 18327/74 Heading C1A [Also in Division C7] The Sr-content of crude brine may be reduced by treatment with Na 2 CO 3  and Ca(OH) 2  using sufficient Na 2 CO 3  to give an excess CO 3  content of 500-800 mg/l., optionally followed by (1) standing of the brine to allow desupersaturation and filtration, (2) addition of CaCl 2  and NaCO 3  solutions, optionally in the presence of seed crystals of CaCO 3  and SrCO 3 , (3) addition of BaCl 2 , (4) treatment with an ion-exchange resin containing imino-di-acetic acid groups, or (5) mixing with waste brine from an electrolysis cell. Alternatively, when the waste cell brine is to be resaturated and recycled, the fresh NaCl may be derived by evaporation of an Sr-purified brine, e.g. prepared by treatment with excess Co 3  as above. The product contains less than 3 mg/l. Sr and is useful for electrolysis.
Patent GB-562254-A (GB)
Title: Improvements in electric resistance welding
IPC: B23K11/24
Filed: 1942-12-28
Abstract: 562,254. Electric supply systems. ENGLISH ELECTRIC CO., Ltd., and CHIRNSIDE, H. S. Dec. 28, 1942, No. 18406. [Class 38 (iv)] [Also in Group XXII] In an electric spot welding machine for welding light alloys &c. in which an electrode is applied by fluid pressure to the work as controlled by a valve and the pressure between the electrode and work subsequently increased, the increase of pressure and the application of welding current are effected by a mechanically combined valve and switch. The movable electrode which is controlled by a slide valve 9 has, during the forward stroke, the space below the piston closed to provide initially a buffer to reduce the pressure applied to the electrode. The space contains a venting valve 6 which is subsequently opened to release the pressure beneath the piston and so increase the pressure of the electrode on the work. The stem of the valve carries an electric switch member 7 which, as the valve opens, closes a circuit for the discharge of a condenser 4 through the primary 3b of a transformer to effect the welding. The valve 6 is operated by an electro - magnet 8. The valve 9 may be mechanically connected to a switch 10 for closing a shunt circuit across the transformer for the inductive discharge before the electrodes separate. The sheet circuit may contain a resistance 11.
Patent GB-1467901-A (GB)
Title: Stabilisation of polyesteramides
IPC: C08G69/00
Filed: 1974-04-26
Abstract: 1467901 Stabilized polyesteramides DYNAMIT NOBEL AG 26 April 1974 [26 April 1973] 18512/74 Heading C3R A stabilized polyesteramide derived from (a) 2,2 - dimethyl - 1,3 - propanediol as the only glycol present, (b) a dicarboxylic acid and (c) an aliphatic diprimary diamine and/or a #- aminocarboxylic acid and/or a lactam, is prepared in the presence of a stabilizing mixture of (A) phosphorous acid and/or an alkyl or aryl ester thereof, (B) triphenylphosphine and (C) a sterically hindered phenol. The stabilizing mixture is preferably present in an amount of from 0À1 to 0À5% by weight, based onthepolyesteramido-forming starting materials. The examples describe preparing polyesteramides from adipic acid 2,2-dimethyl-1,3-propanediol and hexamethylene diammonium adipate using stabilizing mixtures comprising (A) phosphorous acid or trinonylphosphite, (B) triphenylphosphine and (C) 2,6-di-isopropylphenol, 2,6- di - tert - butylphenol, 4,41 - methylene - bis- (2,6 - di - tert - butylphenol), 2,2<SP>1</SP>- methylenebis - (4 - methyl - 6 - tert - butylphenol) or # - (3,5 - di - tert - butyl - 4 - hydroxyphenyl)- priopionic acid ester of pentaerythritol.
Patent GB-653578-A (GB)
Title: Convection heater
IPC: F24H3/04
Filed: 1948-07-09
Abstract: 653,578. Automatic temperature control systems. DEHN, S. G. (Sunbeam Corporation). July 9, 1948, No. 18521. [Class 38 (iv)] [.4lso in Groups X, XI, XIII and XXXVII] A portable convection heater comprising a heating element 14 (Fig. 1), past which air is caused to flow from an intake 15 to an exhaust 16, includes a temperature responsive unit 71 in the air intake for controlling the operation of the heating element. The unit 71 is made substantially responsive only to the temperature of the air flowing through the air intake. The heater may be as described in Specification 597,225, [Group XI], comprising a casing 11 in which are mounted a fan 13, driven by a motor 66, and the heater 14. The fan draws air between louvre 15, past the heater 14 and out of vents 16. A glow lamp 68 and reflector 19 are provided. The thermostat 71 (Fig. 6), is mounted on an extension 75 of a bracket 72 and comprises a crimped bimetal strip subject to longitudinal compression by tightening of a bolt 88. The thermostat is constructed as described in Specification 564,991, [Group XIII], so that it is insensitive to temperature variation of the heater unit itself but sensitive to the temperature of the incoming air. The centre of the thermostat carries a bar 95 upon which is mounted a contact 96 co-operating with a fixed contact 99 to complete the circuit to the fan motor and heater. The bar 95 is also connected to a double leaf-spring 94 the compression of which may be varied manually by adjustment of a spindle 92, so as to adjust the heater for the maintenance of a number of room temperatures. The contact 96 is mounted on the bar 95 with " lost motion," which together with the compression of the thermostat 71 allow the contacts 96 and 99 to operate with a snap action. The heater coil 42 (Fig. 5), is supported by a wire hook 62, the wire being bent into a loop 63 to ensure correct depth of insertion into an insulated holder 55. The holder 55 is fitted into a slot in member 28 and is provided with a slotted flange 57 for co-operation with retaining lugs 61 to prevent rotation.
Patent GB-363678-A (GB)
Title: Process for dyeing cellulose esters and cellulose ethers
IPC: C09B1/32
Filed: 1930-06-18
Abstract: Cellulose esters or ethers, dyeing.--Cellulose ester or ether materials are dyed with 1-alkylamino-4-anilinoanthraquinones.  In an example acetate silk is dyed a fast green-blue shade by treatment for \ba3/4\be hr. at 75-80 DEG  C. in a dyebath containing 1-methylamino-4-anilinoanthraquinone dispersed by making it into a paste with sulphite cellulose lye or the products of sulphonation of distillation residues from benzaldehyde or turpentine oil and mixing the paste with a soap solution.
Patent GB-247078-A (GB)
Title: Improvements in the treatment of aluminous materials
IPC: C01F7/20
Filed: 1924-08-06
Abstract: 247,078. Spence, H., Llewellyn, W. B., and Spence & Sons, Ltd., P. Aug. 6, 1924. Aluminium sulphate and other aluminium salts are obtained by treating with mineral acids aluminous materials which disintegrate during treatment by first treating such materials so as to make them into permeable siliceous pieces of sufficient strength and then circulating acids or acid aluminium salt solutions through them as described in Specifications 112,881 and 119,924. The preliminary treatment may consist of a calcination preferably at a dull red heat, or mixing with materials such as ball clay, alkali silicates, caustic alkali, soda ash, or other suitable agglomerating material, agglomerating into pieces, and calcining to make the pieces sufficiently resistant. If the raw material contains potash in such quantity that precipitation of sulphates containing potash, iron, and aluminium may occur to a troublesome extent, the digestion with acid may take place in the conditions of temperature, specific gravity, and degree of neutralization indicated in Specifications 3805/12 and 22590/12. Specification 149,453 also is referred to. The first Provisional Specification states that materials that are not sufficiently plastic to be made into suitable pieces alone may be treated with a reagent such as tannic acid to render them sufficiently plastic. The second Provisional Specification states that aluminium chloride or nitrate solutions may be obtained bv the process. Reference has been directed by the Comptroller to Specifications 112,881 and 119,924.