baber/WOPTO huggingface dataset:
Patent GB-1421791-A (GB)
Title: Apparatus and process for the production of photopolymer plates
IPC: G03F7/16
Filed: 1973-05-02
Abstract: 1421791 Photo-resist images ASAHI KASEI KOGYO KK and TOKYO KIKAI SEISAKUSHO Ltd 2 May 1973 [2 May 1972 (5)] 20894/73 Heading G2A  A photo-resist relief image 4b on a backing layer 5 is produced automatically by (a) applying a protective film 3 to a transparency 1 on a ground glass plate 2 (which is capable of reciprocating between film application and exposure stations 8 and 11), (b) applying a doctored coating 4 of photo-sensitive material on to the protective film 3 at station 9, (c) laminating a backing layer 5 on to the photo-sensitive coating at station 10, (d) lowering a ground glass plate 6 on to the backing layer 5 at station 11, (e) exposing first from above and secondly from below, (f) raising plate 6, (g) withdrawing the assembly of layers 3-5, (h) pealing off protective film 3 at station 12, (i) dissolving out unexposed photo-sensitive material at station 15, (j) treating the resulting relief image with a surface treating agent at station 16, (k) drying, and (1) uniformly exposing at station 17. The drying and uniform drying steps may be carried out simultaneously or in either order. While plate 2, held at its forward edge by a clamping plate (35), Fig. 4 (not shown), is stationary, protective film 3 is applied at station 8 from a reciprocatory device comprising a supply roll, clamp opening means, air nozzle for blowing the leading end of film 3 into the opened clamp, and cutter, Figs. 3 and 8-10 (not shown). During the passage of plate 2 to exposure station 11, the photo-sensitive material is applied from and doctored by a tipped bucket (80), Fig. 3 and a cut length of backing layer is transferred from belts 10<SP>1</SP> by a laminating cylinder (85) Fig. 11 (not shown) having clamping. means to clamped plate 2. The backing layer is formed by lamination of layers of backing and protective material (from rolls 116 and 120), Fig. 12 (not shown). Exposure is effected while a vacuum is applied to grooves in plates 2 and 6. After exposure, transfer means 13 comprising gripper means (155), Fig. 14 (not shown) transfers the backing layer past film removal station 12 to transfer means 14 comprising gripper means (163), Fig. 13 (not shown). At station 12, film 3 is removed by contrary rotating belts (142) Figs. 14 and 15 (not shown) having an adhesive surface, scraper (146) and compressed air nozzle (147).
Patent GB-1511229-A (GB)
Title: Electromagnetic position transducers
IPC: G01L1/14
Filed: 1974-05-11
Abstract: 1511229 Measuring voltage LUCAS INDUSTRIES Ltd 6 May 1975 [11 May 1974] 20941/74 Heading G1U In an arrangement where the position of an element varies the coupling between the windings 12a, 12b of a transformer 12, an A.C. source is coupled thereto by a coupling transformer 11 and the variable transformer 12 output is connected in a closed series circuit with the primary 15b of an output transformer 15 and the secondary 16a of a feedback transformer 16. The output transformer secondary 15a feeds a phase sensitive rectifier whose output is integrated 17 and applied to a  variable gain amplifier 18, to control the output thereof which is derived from the A.C. source 10 and used to drive the primary 16b of the feedback transformer. At balance, the feedback voltage cancels the voltage from the variable transformer and the phase sensitive rectifier output is zero. The feedback transformer input winding 16b is energized by the output of the variable gain amplifier via a difference amplifier 19 whose second input is derived from a winding on the feedback transformer. This reduces transformer losses. The integrator may have a bias at its input such that in the event of a fault, the integrator output exceeds a normal level and this is detected.
Patent GB-280654-A (GB)
Title: Improvements in electrically operated selecting and controlling mechanism for telephone systems and like purposes
IPC: H01H67/24
Filed: 1926-08-26
Abstract: 280,654. Watts, A. Aug. 26, 1926. Electromagnets. - In connecting apparatus of the kind described in Specification 247,243, [Class 40 (iv), Telephones &c.], for use in automatic telephone systems, comprising series of electromagnets disposed in rows, the windings for energizing the pole-pieces take the form of loops each common to a row of pole-pieces. One arrangement, Figs. 1, 3, consists of vertical magnet bars A of channel section energized by loop windings A<1>, and horizontal rows of armatures B carried by rails C which may be advanced to bring the armatures B carried thereby within the range of the magnet bars A by means of electromagnets G. When employed to operate the twin plugs of the prior Specification, catches are provided to retain the rail C in the advanced position until released by means of a releasing magnet, which also controls the magnets G to bring up the next rail C. Another arrangement, Figs. 4, 5, in which the use of adjustable armatures is rendered unnecessary, has, magnet-bars A with alternate gaps and projecting pole-pieces, with loop windings H disposed in the gaps in a zigzag manner at right-angles to those A<1> on the magnet bars. The pole-pieces at the intersection of any two excited loop windings develop twice as much magnetic flux as the remainder in the two perpendicular rows, and the armature B at this point is the only one attracted. In a modification of this arrangement, a base plate is provided with projecting pole-pieces which are energized by means of horizontal and vertical loop windings.
Patent GB-673328-A (GB)
Title: A fender beading or welt for a motor-vehicle
IPC: B60R13/06
Filed: 1950-08-24
Abstract: 673,328. Mouldings; weather excluders. MARTIN, W. L. Aug. 24, 1950, No. 21009/50. Classes 20(iii) and 20(iv). A beading or welt adapted to conceal and exclude weather and dust from the joint between a car body and the mudguards and the like consists of a core portion 12 of round section cord or wire along which are spaced pointed tongues 15 all projecting from the core in the same tangential plane and secured thereto by clamping the bent inner end 14 of each tongue around the core. A fabric cover 18 is glued or stitched around the core and conceals the ends 14. The welt is particularly adapted to replace the welts originally fitted when these deteriorate and become unsightly, without having to remove the mudguard 2 from the car body 1. The bead portion of the original welt is cut away leaving the flange 7, 8 in position. The new welt is then secured in place by pushing the tongues 15 into the old flange as shown in Fig. 3.
Patent GB-586697-A (GB)
Title: An improved catalytic alkylation of isoparaffins with olefins
IPC: C07C2/60
Filed: 1944-10-27
Abstract: Isobutane is alkylated with a normally gaseous olefin by contacting in the presence of aluminium chloride and in the absence of a promoter at a temperature of 120-180 DEG  F. in the case of ethylene, and 60-140 DEG  F. for propylene or butylene, and under sufficient pressure to maintain the liquid phase, whereby an aluminium halide-hydrocarbon complex is formed.  Aluminium chloride may be dissolved or suspended in isobutane and the olefin added.  The reactants may be intimately mixed and passed through towers or other reactors or batch operation or fixed catalyst beds may be used. Examples illustrate the improvement in reacting isobutane and ethylene in a jet reactor or a turbo-mixer in the absence of a promoter under the specified conditions over reaction in the presence of methyl chloride or at lower temperatures.
Patent GB-1188268-A (GB)
Title: Processes for the Autoxidation of Substituted Benzenes
Inventor: PATTON JAMES WINTON
IPC: C07C51/265
Filed: 1968-05-03
Abstract: 1,188,268. Autoxidation of substituted benzenes. MARATHON OIL CO. 3 May, 1968 [8 May, 1967], No. 21185/68. Heading C2C. The invention relates to a process for the autoxidation of substituted benzenes to carboxylic acids which are substituted with one to three groups selected from alkyl groups, aldehydo groups, alkyl groups and combinations thereof in which substituent groups the carbon atom alpha to a ring is connected to not more than two other carbon atoms, which process comprises reacting the substituted benzenes with a mixture of oxygen, a catalytic amount of a transition metal, i.e. a metal having atomic numbers of from 21 to 30, 39 to 48, and 57 to 80 or salt thereof and an amount of 2,3-epoxybutane sufficient to increase the yield of carboxylic acid over a yield obtained when no 2,3-epoxybutane is used, at a temperature of from 50 to 250 C. There may also be present an oxygen-containing solvent resistant to further oxidation under conditions of the reaction capable of maintaining a single phase reactant mixture such as acetic acid. In an example, a solution of p-xylene in cobaltous acetate in acetic acid, acetaldehyde in acetic acid are mixed in a vessel at 100 C. and maintained at 150 p.s.i.g. with oxygen. When the reaction slows down 2,3-epoxybutane is added from a pressurized tube and after 2¢ hours terephthalic acid is obtained. Other examples are described using m-xylene, toluene, paradihexylbenzene, p-dibenzyl alcohol, terephthaldehyde.
Patent GB-1097362-A (GB)
Title: Improvements in and relating to solution polymerization
IPC: C08F10/00
Filed: 1965-05-19
Abstract: Unreacted monomer which is an ethylenically unsaturated hydrocarbon is recovered from a liquid solution of a polymer in an inert solvent, which has been obtained by solution polymerization, by vaporizing the monomer from a wiped-film of the solution while the film is swept by a counter-current flow of inert gas saturated with the inert solvent and separating the monomer from the resultant gaseous mixture. The hydrocarbons recovered, solutions and polymers specified are (1) a mixture of ethylene and propylene recovered from either an ethylene/propylene copolymer in n-heptane or an ethylene/propylene/11-ethyl-1,11-tridecadiene terpolymer in perchloroethylene; (2) 1,3-butadiene from cis-1,4-polybutadiene in benzene; (3) a mixture of ethylene and 1-butene from a terpolymer of ethylene/1-butene/dicyclopentadiene in cyclohexane; and (4) a mixture of ethylene, propylene and butene from a quaternarypolymer of ethylene / propylene/butene / 6-methyl - 1,5 - heptadiene in octane. The inert gas may be nitrogen.  The hydrocarbon may be separated from the gaseous mixture by absorption in an inert solvent, e.g. the same as that of the solution of polymer, and then recovered by stripping the absorption liquor.ALSO:<PICT:1097362/C3/1> Unreacted monomer is recovered from a liquid solution of a polymer in an inert solvent, which has been obtained by solution polymerization, by vaporizing the monomer from a wiped-film of the solution while the film is swept by a counter current flow of inert gas saturated with the inert solvent and separating the monomer from the resultant gaseous mixture.  The monomers recovered, solutions and polymers specified are (1) a mixture of ethylene and propylene recovered from either an ethylene/propylene copolymer in n-heptane or an ethylene/propylene - 11 - ethyl - 1,11tridecadiene terpolymer in perchloroethylene; (2) 1,3-butadiene from cis 1-4 polybutadiene in benzene; (3) a mixture of ethylene and 1-butene from a terpolymer of ethylene/1-butene/dicyclopentadiene in cyclohexane; and (4) a mixture of ethylene, propylene and butene from a quatropolymer of ethylene/propylene/butene/6 - methyl - 1,5 - heptadiene in octane. The inert gas may be nitrogen.  The monomer may be separated from the gaseous mixture by absorption in an inert solvent, e.g. the same as that of the solution of polymer, and then recovered by stripping the absorption liquor. An apparatus is described (see schematic flow diagram).
Patent GB-886911-A (GB)
Title: Method and apparatus for applying metal coatings to the inner surfaces of metal tubes
IPC: C23C2/00
Filed: 1960-06-17
Abstract: 886,911. Coating with metals; fluxes. ROBINSON, M. L: June 17, 1960 [Feb. 23, 1960], No. 21328/60. Class 82(2). The interior of a metal tube is coated with a metal having a melting point lower than that of said tube by heating the tube to a temperature at least as high as the melting point of the coating metal and blowing through the tube a slug of molten coating metal preceded by a wiper, the slug and wiper being in contact. As shown in Fig. 2, tube T is heated in oven 12 by burners 14, the action of which is enhanced by fans 15 which circulate the hot gases. Burners 14 also serve to maintain molten a mass of coating metal held in container 18. The lower end of tube T is secured against flared surface 31 (Fig. 4) of fitting 24 and the upper end of said tube is secured in hollow boss 49. A wiper e.g. of fibreglass is inserted into tube T through passage 28 of fitting 24 and molten metal then allowed to flow from container 18 through conduit 22 into well 23 by opening valve 39. Valve 38 is opened to cause compressed propellant gas (e.g. CO 2  or air) to pass through conduit 37 thus forcing the slug of molten metal contained in well 23 through opening 29 into tube T. The slug preceded by the wiper is driven through the full length of the tube, the wiper and excess molten metal being ejected through boss 49 into container 18. Before coating, tube T is preferably cleaned and fluxed, and, after coating, a second wiper is preferably blown through the tube to smooth the coating. The tube is finally washed and dried. The wipers are preferably saturated with flux, e.g. one consisting, by volume, of glacial acetic acid 5% concentrated hydrochloric acid 20%, methanol 60% and fluxing agent 15%, said fluxing agent being prepared by dissolving 32 oz. of zinc chloride, 12 oz. of ammonium chloride and 1 oz. of hydrochloric acid in methanol to make 1 gallon of solution. Coatings of tin, lead and tin-lead alloys may be applied to copper and copper alloy tubes, and coatings of zinc and aluminium may be applied to steel tubes.
Patent GB-187370-A (GB)
Title: Improvements in animal traps
IPC: A01M23/26
Filed: 1921-08-11
Abstract: 187,370. Thomas, B. W. Aug. 11, 1921 Animal traps. - In an animal trap of the spring- jaw type, the roller 4 on the pivoted dog 2 is wider than the tongue 5 on the platform 24 which engages it and is adapted to move length-wise on the axis 3.
Patent GB-714658-A (GB)
Title: Improvements in or relating to portable dosimeters for radio-active radiation
IPC: H01J47/04
Filed: 1952-08-26
Abstract: 714,658. Cold cathode tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 26, 1952 [Aug. 29, 1951], No. 21437/52. Class 39(1) [Also in Group XXXVI] A portable dosimeter for radioactive radiation comprises an envelope 1 enclosing an ionization chamber containing an electrode 5 on the inner wall and an electrode 6 carried by an insulator 7 and provided with a thin wire 8 attached thereto to serve as an electrometer leaf. Insulated conductors, 2, 3, 4 pass through the envelope and conductor 2 is connected internally to electrode 5. Application of a high voltage to conductors 3, 4, causes a discharge embracing electrode 6 and on lowering the voltage to the value at which the discharge ceases, electrode 6 is left charged to a voltage determined by the voltage applied between conductors 2, 3 or 2, 4 during charging. Thereafter the incident radioactivity over a period of time is determined by the diminution of the deflection of the electrometer due to loss of charge by ionization. The internal discharge is facilitated by making one electrode a thermionic filament.
Patent GB-614601-A (GB)
Title: Improvements in or relating to capsules
IPC: A61J3/07
Filed: 1946-07-17
Abstract: 614,601. Storing medicinal substances. LATEX INDUSTRIES, Ltd., and LANDAU, L. July 17, 1946. No. 21443. [Class 94 (i)] A capsule for storing medicinal substances in doses is moulded into a hemispherical shape or into a shape having at least one semi-circular cross-section and sits in a holder therefor having a concavity corresponding to the curved shape of the capsule. The holder may consist of a number of concavities 11 in a flat tray 10 which may be reinforced against buckling by the ribs 12, or a number of individual holders may be stored one above the other in a container.
Patent GB-773748-A (GB)
Title: Method of preparing quaternary salts of amino carbinols
IPC: C07D295/084
Filed: 1955-07-26
Abstract: A method of preparing an hydroxy quaternary ammonium salt represented by the formula: <FORM:0773748/IV(b)/1> wherein R1, R2 and R3 are lower alkyl groups having from 1 to 3 carbon atoms or R1 and R2 together form a pyrrolidino or piperidino ring and X is the anion of a hydrocarbyl sulphonic acid or a halogenohydrocarbyl sulphonic acid comprises condensing a phenyl cyclohexyl ketone with an ester of a monohalogenacetic acid to give a hydroxy ester: <FORM:0773748/IV(b)/2> reducing this ester to a glycol: <FORM:0773748/IV(b)/3> reacting the glycol with a hydrocarbyl sulphonic acid halide or a halogenohydrocarbyl sulphonic acid halide at a temperature not exceeding 50 DEG  C. and the resulting ester with a tertiary amine NR1R2R3.  The reduction of the hydroxyester to the glycol is preferably effected with lithium aluminium hydride. Sodium borohydride and catalytic reduction are also suitable. Sulphonyl halides which may be reacted with the glycol include p-toluene, p-bromobenzene and methane sulphonyl chlorides.  In examples: (1) phenyl cyclohexyl ketone and ethyl bromoacetate are reacted in the presence of zinc to form ethyl b -phenyl, b -cyclohexyl-, b -hydroxy propionate which is reduced with lithium aluminium hydride to 1-phenyl-1-cyclohexyl-1,3-propanediol.  Reaction of this with p-toluenesulphonyl chloride gives 1-phenyl-1-cyclohexyl-1 - hydroxypropyl - 3 - p - toluenesulphonate which is reacted with N-methyl-pyrrolidine to form N - (3 - phenyl - 3 - cyclohexyl - 3 - hydroxypropyl) - N - methyl pyrrolidinium - p-toluenesulphonate; (2) 1 - phenyl - 1 - cyclohexyl - 1 - hydroxy - propyl - 3 - p - toluenesulphonate and triethylamine are heated in ethanol containing a little phenol to form N-(3 - phenyl - 3 - cyclohexyl - 3 - hydroxypropyl)-triethylammonium p-toluenesulphonate.
Patent GB-465389-A (GB)
Title: Device for the safe landing of air vehicles
IPC: B64C25/44
Filed: 1936-08-06
Abstract: 465,389. Aircraft wheel brakes and landing-gear. LEVEL, T. E. Aug. 6, 1936, No. 21636. [Class 4] Relates to landing-gear of the kind wherein an undercarriage is connected to an aircraft by plunger pistons and cylinders so arranged that the relative displacement which takes place on landing brings about a fluid pressure in the cylinders which is utilized for operating wheel brakes. Main landing wheels 11, 12, Figs. 1 and 2, are mounted on an axle secured to rods 27, Fig. 2, of pistons 13 working in cylinders 1, 2. The undersides of the pistons are maintained under atmospheric pressure by air vents 17, 18 and the upper working chambers of the cylinders are connected by a pipe 3 to a three-way valve 4, by a pipe 15 to pressure-release valve 16 and by a pipe 20 to a pressure source. In flight, valves 4 and 16 are closed and the axle is stated to be maintained near to the position shown by atmospheric pressure on the undersides of the pistons. Prior to landing, valves 4 and 16 are opened to atmosphere to lower the wheel axle to the dotted line position of Fig. 1. These valves are then closed and the cylinders charged with air under pressure through pipe 20. On landing, pistons 13 move upwardly compressing the air above them, the maximum pressure being limited by release valve 16. The air compressed by pistons 13 is used to operate brakes 9, 10 through servomotor 8, a connection being established for this purpose with valve 4 by means of a pipe 5. Pipe 5 is in two parts, Fig. 5, each of which communicates with an annular chamber 24 formed in the bore of a winding reel 6. Reel 6 is loaded by a spring 7 in such manner as to maintain the lower pipe element taut in any relative position of axle and cylinder.
Patent GB-810507-A (GB)
Title: Improvements in or relating to weft pile fabrics
Inventor: LATHAM GEORGE
IPC: D03D27/12
Filed: 1956-07-13
Abstract: 810,507. Corduroy fabric. NEW VICTORIA COTTON SPINNING & MANUFACTURING CO. Ltd. May 22, 1957 [July 13, 1956], No. 21640/56. Drawings to Specification. Class 142(4) In a corduroy fabric, the pile picks between successive ground picks include one which is flushel at alternate pile ribs and another which is flushed at the intervening ribs, and may include ordinary pile picks flushed at every rib.
Patent GB-1133968-A (GB)
Title: Vehicle seat covers
Inventor: ARNOTT BARRY
IPC: A47C31/11
Filed: 1966-05-17
Abstract: 1,133,968. Loose covers for seats. KAROBES Ltd. 15 Dec., 1966 [17 May. 1966], No. 21791/66. Heading A4M. A loose cover for a vehicle seat is provided with foamed rubber pads (15) separately encased in pockets 13, 14 at the sides of the back 10 and seat 11 portions of the cover, adjacent abutting ends 13a, 14a of the back and seat pads (15) being chamfered to give the appearance of a continuous L-shaped pad when the cover is fitted. The bottom of each pocket is closed by a pair of flaps joined to the cover at opposite sides of the pocket and adhesively secured in overlapping relationship after insertion of the pad 15.
Patent GB-317621-A (GB)
Title: Improvements in attachments for spectacles and eyeglasses
IPC: G02C5/06
Filed: 1928-07-27
Abstract: 317,621. Strauss, L. July 27, 1928. Goggles.-A device comprising transparent lens portions, which may be coloured or translucent is provided with means such as hooks 23 for attachment to spectacles. The lens portions 14 are pivoted to a bridge piece 21 and fitted with a spring 17 which tends to close the lens portions 14 together to retain them in place on the spectacles. The hinging of the frames 14 may be such that the spring 17 can draw tEem together so that they overlap when removed from the spectacles.
Patent GB-376044-A (GB)
Title: Improvements in photographic lenses
IPC: G02B9/34
Filed: 1931-07-31
Abstract: 376,044. Lenses. LEE, H. W. and KAPELLA, Ltd., 104, Stoughton Street, Leicester. July 31, 1931, No. 21856. [Class 97 (i).] Relates to photographic lenses of the kind described i n Specification 165,657, [Class 97 (il, Opticalsystems &c.], comprising two components, one consisting of a meniscus dispersive element cemented to a meniscus collective element of lower refractive index, and the other consisting of a double convex element cemented to a double concave element of lower refractive index, and a diaphragm, the elements being in the sequence named. According to this invention the refractive index of the double convex element for the D line exceeds 1.63 and that of the double concave element is not less than 1À52 and is less than that of the double convex element by at least 0.1. The Figure shows a lens consisting of two members as defined above with the free surfaces of the double concave elements facing each other, the two lens members being of equal or unequal focal lengths. The two components of each member may be cemented together or, as shown, they may be separated by an air space and the surfaces bounding the air space may have different radii. Numerical data are given.
Patent GB-1061077-A (GB)
Title: Improvements in or relating to guttering
Inventor: BAYES RONALD CURTIS
IPC: F16L47/00
Filed: 1964-05-27
Abstract: 1,061,077. Roof gutters. CHEMIDUS PLASTICS Ltd. and RUBEROID CO. Ltd. May 24, 1965 [May 22, 1964], No. 21888/64. Heading E1W. A plastics union bracket 1 for plastics guttering 10 has end portion 6 of an internal radius larger than that of the central portion 6a to provide seatings for plastic gaskets 7, each gutter length 10 being held firmly against the middle portion 6a of the bracket by a flexible plastics sealing member 12 which is sprung into position with its upper edge portions engaged beneath inwardly and downwardly extending flange portions along the upper edges of the middle portion 6a.