baber/WOPTO huggingface dataset:
Patent GB-882534-A (GB)
Title: Method of conditioning organic pigments and the resultant product
IPC: C09B67/00
Filed: 1959-08-28
Abstract: Organic pigments are conditioned by attrition grinding in a heavy duty masticator, a mixture of a crude dry organic pigment and an organic conditioning agent comprising a polyhydric alcohol or an ether, ester or chlorinated derivative thereof or mixtures thereof, the agent being liquid under the grinding conditions, having a solubility in water of at least 0.01% at 25 DEG C. and being present in an amount sufficient to convert the mixture into a discontinuous mass of tough, compacted, granular particles during grinding, adding water to the mixture to dissolve said agent and then separating the pigment from the resulting solution.  The grinding mixture may also include a water-soluble, solid grinding acid such as an inorganic salt, urea or sugar, and insoluble, inert extenders or substrata for making extended colours or lakes. A large number of conditioning agents is specified including some which are solid at ordinary temperatures but which are molten at grinding temperatures or which may may be mixed with a small quantity of water.  Examples are given.
Patent GB-188325-A (GB)
IPC: B03D1/04
Filed: 1922-10-28
Abstract: 188,325. Diehl, L. H. Nov. 3, 1921, [Convention date]. No Patent granted (Sealing fee not paid). F l o t a t i o n processes and appar atus.-Coal is separated from waste by coarse grinding followed by flotation carried out in a vacuum. The coarsely ground coal is mixed with oil and water, to which alkalis, acids or a salt may be added, and after stirring t h e separation is carried out in apparatus such as that described in Specification 17816/04, the coal particles being floated by the gases originally contained in or absorbed by the coal together with any gases liberated from the liquid. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the subject-matter of the divided application 191,383 according to which the coal, water and oil mixture is intro. duced into a double conical vessel 1 in a tangential and slightly upward direction by means of pipes 4, 5 the separation being enhanced by a regular pulsation of the liquid surface brought about by periodically operating the tailings discharge valve 17. This subject-matter does not appear in the Specification as accepted.
Patent GB-987414-A (GB)
Title: A base plate for sound recording equipment
IPC: G11B5/00
Filed: 1961-08-16
Abstract: 987,414. Trays for boxes. OLYMPIA WERKE A.G. Aug. 16, 1961 [Sept. 2, 1960], No. 29569/61. Heading B8P. A tray for a case holding dictation equipment comprises a synthetic plastic base having beadlike projections 2 dividing the tray into compartments. A clip 6 is provided to hold a coil of electric cable. A loop 7 facilitates withdrawal of the tray from its case.
Patent GB-362072-A (GB)
Title: Improvements in or connected with microphones
IPC: H04R23/00
Filed: 1930-10-02
Abstract: 362,072. Discharge apparatus. ASSOCIATED SOUND FILM INDUSTRIES, Ltd., River Plate House, Finsbury Circus, London.-(Assignees of Forest, L. de ; 318, East 48th Street, New York, U.S.A.) Oct. 2, 1930, No. 29572. Convention date, Oct. 2, 1929. [Class 39 (i).] A microphone consists of a device in which a discharge takes place between electrodes in a sealed gas-filled chamber, one of the electrodes being in the form of an electrically conductive flexible diaphragm. Fig. 1 shows a construction of the device comprising a metal cylinder 1 to which is hermetically sealed a glass member 3 provided with a re-entrant tube 4 which is pressed together at the point 5 while hot so as to seal hermetically the tube at the point where the wires 12 enter the vessel. The end of cylinder 1 is closed by a metal cap 7 of thin copper, nickel, tantalum or of the material known under the registered Trade Mark duralumin, the cap being initially secured under tension and forming the anode of the device. The cathode 8 is supported on stiff wires 9 connected to supporting wires 10 which are sealed in the brace 5 and connected to the lead wires 12. As shown, the tube 4 may be extended beyond the brace 5 to help support the cathode and its supporting wires. The complete vessel may be filled with gas such as that provided by placing a globule of mercury within the container and exhausting it to the pressure of mercury vapour. In addition to, or instead of, the mercury, argon, krypton or xenon, either pure or in any desired mixture may be employed. Instead of making the cathode in the form of a straight filament as shown, it may be made in the form of a spiral supported on a disc of insulating material, such as mica, carried by supporting wires from the brace 5. In further modifications, Figs. 5 and 6, (not shown), the cap 7 is made of rubber or rubberized fabric metallized on its inner surface, and the devices are adapted to operate above and below atmospheric pressure respectively, the container being provided with a tube and valve whereby the desired gases may be passed into the container and the desired pressure established and maintained therein. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction, Fig. 7 (Cancelled), in which the inner surface of cap 7 is not metallized, an anode in the form of a metallic ring 25 carrying a mesh being supported by wires 26, 27 from the brace 5. This subjectmatter does not appear in the Specification as accepted.
Patent GB-949868-A (GB)
Title: Improvements relating to flat warp knitting machines
Inventor: PORTER ALLAN WILLIAM HENRY
IPC: D04B27/08
Filed: 1961-08-16
Abstract: 949,868. Warp knitting-machines. HOBOURN - F. N. F. Ltd. Aug. 16, 1962 [Aug. 16,1961), No. 29590/61. Heading D1C. A flat warp knitting machine comprises a mechanism to drive the knitting elements which includes a pivoted member 16 which is ocsillated through an angle of between eighty and one hundred degrees by a rotating crank 10 acting through a connecting rod 15, the pivoted member being connected through a pivoted link 17 to a driving member 12 which carries the knitting elements, the link being arranged so that its line of action intersects the pivotal axis 36 of the pivoted member in the course of each cycle of movement. The connections between the pivoted member and the pivoted link and between the connecting rod and the crank are adiustable in position so that the form of the movement of the driving member can be varied. The needles, needle tongues, guide eyes and sinkers are each driven by a separate mechanism from a common crank-shaft.
Patent GB-1355407-A (GB)
Title: Heat-resistant polymers and their precursors based on polyamines and oligomers possessing imide groups
IPC: C08G59/40
Filed: 1972-06-23
Abstract: 1355407 Laminates RHONE-POULENC SA 23 June 1972 [24 June 1971] 29602/72 Heading B5N [Also in Division C3] Heat resistant polymers or heat-curable prepolymers thereof are obtained by reacting at 50 to 350 C., (a) an oligomer with (b) a polyamine Q(NH 2 ) y , x being 0À1 to 2, R being a C 1-8  divalent hydrocarbon radical derived from an aldehyde or ketone R=O, D being a C 2-24  radical derived from an anhydride of a dicarboxylic acid and at least 60% thereof containing an olefinic double bond, y being at least 2, and Q being a y-valent organic radical (a) providing 1À1 to 50 unsaturated D radicals per -NH 2  group from (b). Oligomers (a) are described and claimed in Specification 1,348,077. Extensive lists of possible reactants and solvents are given. A prepolymer may first be formed at up to 250 C., usually 80 to 200 C. and then cured at up to 350 C., usually 150 to 300 C. In an embodiment 1 to 5 wt. per cent of a tri- or tetra-carboxylic anhydride may be added to the prepolymer before curing. In a further embodiment up to 50 wt. per cent of an unsaturated polyester and/or a polymerizable vinyl, maleic, allyl or acrylic monomer containing a -CH=C= group may be heated with the reactants or the prepolymer. Numerous reactants are exemplified and curing may be effected in the presence of polymerization initiators such as lauroyl peroxide or azo-bisisobutyronitrile or diazabicyclooctane. Up to 10 wt. per cent of an aromatic compound containing 2 to 4 benzene rings and boiling above 250 C. may be added to the resin to lower the softening point of the prepolymer. The prepolymers may be used as a liquid mass, e.g. for hot casting; cooled and ground to powders, e.g. for compression moulding optionally with powdered, spherical, granular, fibrous of flake fillers; or as suspensions or solutions for coatings or forming pre-pregs by impregnating fibrous materials consisting of aluminium or zirconium silicate or oxide, carbon, graphite, boron, asbestos or glass. Specified uses of the resin are insulation for transformers and printed circuits, glass and self-lubricating bearings. In Example 1 the prepolymer is precipitated, dissolved in N-methylpyrrolidone and used to impregnate satin type glass fibre fabric which has been pre-treated with γ-aminopropyltriethoxy silane. Layers of the impregnated and dried fabric are stacked and laminated at 250 C. and 30 bars. Reference is made to Specifications-1,190,718, 1,260,819, 1,276,646, 1,280,847, 1,355,401, 1,355,402, 1,355,403, 1,355,408, and 1,348,077.
Patent GB-519866-A (GB)
Title: Improvements in or relating to damping of vibrations in air-screws
IPC: B64C11/00
Filed: 1938-10-13
Abstract: 519,866. Damping air - screw vibrations. SARAZIN, R. R. R. Oct. 13, 1938, No. 29690. Convention date, Feb. 28, 1938. [Class 108 (iii)] [Also in Group XXIV] Air-screw vibrations are damped by means exerting a damping force parallel to the rotary axis. The air-screw is axially slidable on its shaft and subject to action of centrifugal masses swinging parallel to the shaft. In Fig. 2, the air-screw 2 is slidable on its driving-shaft 6, being driven through balls 16 which are in apertures in a cylindrical cage 22 and engaging longitudinal grooves 14, 12 respectively in the air-screw and in a sleeve 20 fast on the shaft. Arms 34, transversely pivoted at'30 to the sleeve 20, pass through and engage an extension 40 of the air-screw hub, and carry masses 48 pivoted at 42. Disturbance of the equilibrium between the forward pull of the air-screw and the rearward pull of the masses, by longitudinal forces, is resisted by the inertia of the masses. Pairs of opposite masses may have different natural frequencies to damp more effectively vibrations of different frequencies. Specification 444,222 is referred to. In Fig. 4, the drive is effected through caged rollers 56 round a square-sectioned sleeve ori the shaft. In Fig. 6, movement of the cage 22 is controlled bya lever 66 with its ends in recesses in the screw-hub and the shaft.
Patent GB-297681-A (GB)
Abstract: 297,681. Atlas Powder Co., (Assignees of Carnegie, D.). Sept. 23, 1927, [Convention date]. Fats or fatty oils.-Coating compositions are made by oxygenizing, without substantial polymerization, a drying or semi-drying oil until its viscosity is such that a steel ball of “ inch diameter takes 20-80 secs, to fall 12 inches through the oil, at 25-30‹ C., and mixing a cellulose ester therewith. Driers such as cobalt or manganese linoleate, and pigments preferably ground in an oil such as castor oil may be added. The oils are preferably modified by treatment with air or other oxygen containing gas at a temperature not above 250‹ C., whereby the oil is oxidized but not polymerized. It is preferred to use linseed oil, but soya bean, china wood, perilla and menhaden oils are specified as suitable. The Specification as open to inspection under Sect. 91 (3) (a) describes modifying drying or semi-drying oils whereby they become miscible in all proportions with cellulose nitrate in solution. The modified oils may be used in solution as coating materials. This subjectmatter does not appear in the Specification as accepted.
Patent GB-846641-A (GB)
Title: Improvements in or relating to units for covering roofs or walls
IPC: E04D1/28
Filed: 1958-09-17
Abstract: 846,641. Roofing &c. units. BRAX, E. K. Sept. 17, 1958, No. 29812/58. Class 87(1) A roofing &c. unit comprises a hard fibreboard base 1 provided with oppositely-facing bevelled edges.2, 3 and.covered with.sheet metal &c. 5 which extends at 7 beyond the bevelled edges 2 to form therewith grooves 6 to receive bevelled edges 3 of adjacent units. The units may be square, triangular or hexagonal. The edges of the sheet metal &c. 5.may be returned to line the groove 6 and to cover the edges 3. In a modification, Fig. 9, edges of the sheet are bent over a resilient strip 12 attached to the base 1.
Patent GB-604326-A (GB)
Title: Improvements in protective devices against bad weather for automobiles
IPC: B60J7/12
Filed: 1945-11-08
Abstract: 604,326. Folding seats. JULIEN, M. F. A. Nov. 8, 1945, Nos. 29846 and 29847. Convention dates, Feb. 20, 1941 and Feb. 13, 1942. [Class 52(ii)] [Also in Groups X, XXV and XXXII] In a small car provided with a removable hood and windscreen (see Groups XXXII, X) the tip-up seats comprise U-shaped frames 43 hinged at 44 to a transverse bar 46, the canvas seat 48 being attached to the front of a frame 43 and to a transverse bar 47 on a rear frame which also carries the seat back 50.
Patent GB-356523-A (GB)
Title: Improvements in the removal of iron and iron compounds from substances containing iron
IPC: C01F7/0613
Filed: 1930-10-06
Abstract: Solid materials containing iron are freed therefrom by converting the iron to a salt if necessary and extracting the salt with an organic solvent, which may be an ether, aldehyde, ketone, or organic halogen compound.  The extraction is preferably effected in the absence of water, but a material containing water of crystallization may be treated or small amounts of water be present in the solvent.  In examples, heavy spar is extracted with ether, methanol, acetone, or chloroform saturated with hydrochloric acid gas; bauxite is extracted with ether, methylene chloride, trichlorethylene, or ethyene chloride in the presence of hydrochloric acid gas; producer slag containing iron and aluminium is decomposed with hydrochloric acid, and the dried mass extracted with ether, acetone, paraldehyde, or chloroform, optionally in the presence of hydrochloric acid; producer slag containing iron and aluminium is decomposed with sulphuric acid and the dried mass extracted with acetone in the presence of hydrochloric acid; and a mixture of nickel or cobalt chloride with ferric chloride is extracted with ether which may contain hydrochloric acid.
Patent GB-941837-A (GB)
Title: Photographic copying material
IPC: G03C1/72
Filed: 1960-08-30
Abstract: 941,837. Light-sensitive material for use as resist. KALLE A. G. Aug. 30, 1960 [Sept. 4, 1959], No. 29879/60. Heading G2M. A metal support has a coating comprising a naphthoquinone-(1, 2)-diazide-(2)-sulphonic ester as described and claimed in Specification 739, 654 together with an alkali soluble acid-resistant resin in relative proportion between 1:1 and 1: 6. This high ratio ensures resistance to etching solutions, and does not require burning in after exposure and processing. Six examples describe the use of five of the esters with m-cresol-formaldehyde resin and usually a proportion of plasticizer and colouring dye: processing is effected with trisodium phosphate, and the examples are directed to the use of (1) a copper cylinder for etching to relief, (2) zinc or magnesium plate for deep etch, (3) zinc plate similarly, exposure having been through a colour separation positive, (4) and (5) copper on aluminium or steel bimetal and aluminium: copper: chromium trimetal respectively for planographic and offset procedure and (6) copper laminated to or vacuum deposited on plastic for printed circuit production and for which etching solutions comprising calcium, ferric and cupric chlorides together with acids are exemplified.
Patent GB-263116-A (GB)
Title: Improvements in or relating to the manufacture of metal masts
IPC: E04H12/08
Filed: 1926-11-26
Abstract: 263,116. Sulzer FrÚrÚs Soc. Anon. Dec. 18, 1925, [Convention date]. Posts. - Masts for supporting electrical conductors are formed from a number of trapezoidal metal plates bent and arranged to form an oval tube tapering towards the top and having at least one longitudinal joint. In one method of construction, the plates a, Fig. 11, are bent to an obtuse 'angle along their longitudinal axes and each half is formed into channel shape by dies d, e. The central bend is then flattened out so as to bring together the plate edges which may then be secured by welding or riveting. In another method of construction, Figs. 14 and 15, the edges of the plates a are turned up and the central part of the plates bent to channel shape in dies d, e. Fig. 1 shows a mast made of three plates a welded together at c, the plate joints being indicated at b.
Patent GB-617589-A (GB)
Title: Rotary internal combustion engine
IPC: F02B75/02
Filed: 1946-10-08
Abstract: 617,589. Rotary engines. FAITOUT, A. C., and LESTAGE, P. R. Oct. 8, 1946, No. 29985. Convention date, July 10, 1945. [Class 110 (ii)] An internal-combustion engine has inner and outer rotors 3, 1 in contact and forming working chambers 12, separated by vanes 6, 7. The rotor 1 has a bush '25 mounted on a stationary shaft 2, and the rotor 3 is secured to the end of a shaft 4 which contains a bore 5 through which the fuel mixture is supplied. The latter passes to the working chamber by way of a duct 10 in the vane 7 which is fixed to the rotor 1. In Fig. 2, combustion chamber 8, in the vane 6, contains compressed gas which is fired by a plug 30, the expanding gases co-operating with a recess 14 which passes them behind the vane into an expanding chamber. Gases are exhausted through a port 15, which at times is cut off by the end wall of the rotor 3 and the segment 18 cuts off the end of the inlet duct 10. The plug 30 is supplied with current by a conductor 31 and a brush 32. Power may be taken off on a pinion 26 or the shaft 4.
Patent GB-830758-A (GB)
Title: Improvements in or relating to centrifugal clutches
IPC: F16D43/18
Filed: 1957-09-24
Abstract: 830,758. Friction clutches. JARDINE, C. B. Sept. 24, 1957 [Sept. 25, 1956], No. 29995/57. Class 80 (2). A centrifugally engaged clutch comprises a helical coil clutch spring frictionally engaged with a driven clutch member and under the control of a speed-responsive governor mounted on the driving clutch member, the coil being wound in such a direction relative to the direction of rotation that transmission of torque tightens its grip upon the driven clutch member. As shown, a driving engine shaft 11 carries a disc 1 fast upon which are two adjacent pins 2, 2A. The pin 2 carries one end of a helical clutch spring 4 surrounding the hub of a driven sprocket 6 rotatably carried by the engine shaft 11. A governor arm 3 pivots on the pin 2A and is attached at its end to a projection 12 on the free end of the helical clutch spring. The pin 2 also carries a secondary spring 10 biasing the arm 3 radially inwards of the main clutch axis. On rotation of the driving shaft 11, the arm 3 tends to move outwards under the action of centrifugal force against the bias of the spring 10, and tightens the helical clutch spring 4 upon the driven hub. The helical clutch spring 4 is wound in such a direction that transmission of torque tends to increase its grip upon the driven hub. The speed at which clutch engagement takes place can be adjusted by changing the secondary spring 10 opposing movement of the arm 3. An oiltight casing 8 is secured to the disc 1. In a modification for connecting two coaxial shafts, a drum at the end of one shaft lies adjacent to a drum on the end of the other shaft, the helical clutch spring surrounding the two drums. As shown, the internal diameter of the helical spring is greater than the external diameter of the engaged drum &c. To use a helical clutch spring having a diameter less than that of the drum, the governor arm is spring biased to hold the helical clutch spring away from the drum when the driving shaft is stationary. The driven drum of the clutch may be combined with an overload slip clutch of the radial spring- and-ball type. The clutch may also be modified to act as a speed limiting device, the helical coil clutch spring being arranged to be unwound from its driven drum by movement of the governor arm as the speed of the driving drum increases above a predetermined limit.
Patent GB-954670-A (GB)
Title: A device for use in the progressive lagging of mine seams
IPC: E21D17/02
Filed: 1960-08-31
Abstract: 954,670. Lagging mines. K. M. GROETSCHEL. Aug. 31, 1960 [Sept. 3, 1959], No. 30007/60. Heading E1E. A device for positioning a lagging iron B as disclosed in Specification 954,671 comprises a bar c having at least one attachment lug b for engagement with the fixed lagging iron A and a movable cradle e for the lagging iron B. The cradle e is mounted on the bar c by pivotal joint connections f, g having positioning locking means in the form of a spring-loaded pin p, g and a pin-out-ratchet mechanism o, n, respectively, the pin p being retracted by a cable r. A stop member b carried by the cradle e and co-operating with a wedge m is adapted to vary the angle between the members e, f. One of the irons d<SP>1</SP> of the cradle may be relatively rotatable. Reference has been directed by the Comptroller to Specification 924,215.