baber/WOPTO huggingface dataset:
Patent GB-296447-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G4/04
Filed: 1928-08-30
Abstract: 296,447. British Thomson-Houston Co., Ltd., (Assignees of Eby, E. D.). Sept. 2, 1927, [Convention date]. Condensers, particularly applicable to carrier currents, comprise a cable section in the form of a loop 2 (Fig. 1), the ends of which have a terminal consisting of a bushing 3 and casing 4 containing oil, carbon tetrachloride, or the like. The cable (Fig. 2) is hollow, having an inner conductor 8 with a duct 9, insulation 10, and a lead sheath 11 forming the outer plate of the condenser. The terminals of conductor 8 are connected to the head 12 of a bolt which is supported by means of a plate 18 on a cap 14 bolted to collar 16 which is cemented to the bushing 3. A plate 21 on the cap 14 has an opening receiving a threaded pipe 23 to which is screwed the expansible oil reservoir 5a. The base of the bushing 3 rests on a plate 24 which is secured to a collar 25 cemented to the bushing. An insulating ring 28 resting on the rim of plate 24 supports an extension 29 of the casing 4, which is provided at its base with plates 30, 31 having extensions 32, 33 sealed to the sheaths 11 by lead joints 36. The plates 30, 31 are bolted to one another, and to the casing A by bolts 35. Threaded plugs 38, 39 are provided on the extensions 32, 33, and a plug 40 is provided on the reservoir 5a, the cover 5 of which is bolted to the cap 14 and carries a terminal 41 for the conductor 8. The iron framework 6 holding the loop in place is bolted at 43 to the plate 24. The condenser is filled with oil by removing the plug 40, nil passing through the reservoir, pipe 23, ducts 20 in the cap 14, into the bushing 3 and casing 4, permeating all the cable insulation. A window 43a allows the reservoir to be observed. Tubular metal shields 29, 45a, for distributing the stresses, and an insulating barrier 44 are provided. A metal covering, for example of copper braid, is provided between the cable insulation 10 and the elements 45a, 32, 33, to relieve the strain due to dielectric stress. The reservoir may be connected to the condenser at the point of one of the plugs 38, 39, and the latter may be substituted by a. valve such as that known under the Trade Mark " Alemite."
Patent GB-477476-A (GB)
Title: Improvements in joints for pipes and other metal members
IPC: F16L13/02
Filed: 1936-09-14
Abstract: 477,476. Making pipe &c. joints. BAILEY, R. W., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 14, 1936, No. 25071. [Class 83 (iv)] [Also in Group XXVIII] Uniting by fusion.- In welding two metal members, a metal wire strip or ribbon is placed in the groove between the abutting parts, of such shape that it conforms to the shape of the bottom portion of the groove, and the rest of the groove is then filled with weld metal. The wire &c. is thus incompletely fused by the weld metal and so leaves the initial formation of the bottom of the groove intact, so that the joint can be broken and remade without deepening the groove. In welding together the sealing rings 2 of pipe joints, described in Specification 386,014, [Group XXVIII], a cylindrical wire 3 is placed in the groove and weld metal is deposited, to leave a remnant of the wire unfused at the bottom of the groove. In welding flanged cylindrical members 6, the groove is shaped to receive a metal member 8 of semicircular cross-section, prior to depositing the weld metal.
Patent GB-1152421-A (GB)
Title: A process of preventing inflammation of trialkyl boranes
IPC: C07F5/02
Filed: 1968-05-24
Abstract: 1,152,421. Stabilizing trialkyl boranes. KULZER & CO. G.m.b.H. 24 May, 1968 [24 May, 1967], No. 25085/68. Heading C2C. Inflammation of trialkyl boranes is prevented by adding thereto as stabilizing agents organic compounds of divalent sulphur. Specified types of sulphur compounds are alkyl mercaptans, alkyl disulphides, dialkyl sulphides, alkyl mercaptoacetic acid esters and thiophenols. Examples of the stabilization process are given.
Patent GB-796170-A (GB)
Title: Improvements in or relating to methods utilizing and devices comprising a closed, ferro-magnetic circuit having a high remanence
IPC: G11C11/06
Filed: 1955-09-01
Abstract: 796,170. Electric digital-data-storage apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 1, 1955 [Sept. 4, 1954], No. 25137/55. Class 106 (1). [Also in Groups XXXV and XXXIX] In a non-obliterative read-out arrangement for a magnetic core storage device, the core is provided with at least two electrically-separated conductive coatings, which are included in a circuit which is pulsed to provide a pulse output on an output winding whose polarity indicates the state of the core. As shown, Fig. 4, the core 1 having input and output windings 2, 3 is provided with internal and external conductive layers 4, 5 connected in the circuit F, N. When a current pulse i is applied to the latter, fields 7 and 8 are produced in the upper and lower parts of the ring which are respectively in opposition to, and in the same direction as, the remanent flux 6. The flux change due to field 8 is small, but that due to field 7 is large and produces an output in the winding 3. On termination of the pulse, restoration of the original flux produces an output pulse of opposite polarity. The polarity of the first output pulse is determined by the direction of remanent flux, so that if an integrating circuit is included in the output circuit 3 a single pulse is produced having its polarity determined by the direction of remanent flux. The output polarity is independent of the direction of the current pulse in circuit F, N. The pair of coatings may be operated as a condenser in which case an insulating layer is provided between them and the core if the latter is of conductive material. Alternatively, the current pulse may be allowed to flow through the core. Several conductive layers may be used, the condensers so formed being connected in series in the pulsing circuit, or, as in a preferred embodiment, Fig. 6, the conductive layers may form continuous bands around the inner and outer walls of the ring. A matrix of such elements is illustrated in Fig. 8. As usual, information is written in by pulsing a combination of two leads. Read-out is effected by pulsing a lead t serially connecting the pairs of conductive coatings to produce appropriate outputs in the individual read-out windings 3.
Patent GB-845961-A (GB)
Title: Method and apparatus for bending glass sheets
IPC: C03B23/025
Filed: 1956-08-17
Abstract: 845,961. Glass-bending lehrs. PITTSBURGH PLATE GLASS CO. Aug. 17, 1956 [Aug. 30, 1955], No. 25192/56. Class 51 (2). [Also in Group XXIII] In a mould for bending glass sheets (see Group XXIII) a rotatable member which, before being rotated to an upper position to produce a transverse bend while the glass is being softened in section 13b of the lehr 130, is held in a lower position by a latch 126 engaging eye 128 until it meets the particular lug which has been erected, from several provided in section 136, by the operative pushing in the corresponding stop pin 154 to allow counterweight 152 to lift the lug. The lehr has a preheat section 132, a longitudinal bending section 134, a transverse bending section 136 (these latter two may be combined) and an annealing section 138 with differing dispositions of the electric heaters 144. Conveyer rolls 143 move the moulds M through the lehr and when the transverse bend is made, the moulds may be accelerated towards the annealing section by coupling high speed motors to the desired conveyer rolls. The progress of the bending may be observed through windows 155. Specifications 820,809, 845,962 and 845,965 are referred to.
Patent GB-795479-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: G05G1/12
Filed: 1955-09-02
Abstract: 795,479. Clamps. PRODUCTS, Ltd., F. T. Aug. 29, 1956 [Sept. 2, 1955], No. 25324/55. Class 44 [Also in Group XXIV] A knob 20, Fig. 3, is secured to the end of a shaft 19 by means of a U-shaped spring clip 10 embracing the end of the shaft and engaging in a blind bore 21 of the Knob. Prongs 11B, 12B, 13B, 14B may be provided on the limbs to bite into the surfaces of the knob and shaft. The spring clip 22, Fig. 5, allows of rotation of the knob on the shaft by reason, of inwardly directed prongs 29, 30 on the limbs engaging in a circumferential groove in the shaft, the limbs being provided with abutting portions 31, 32. The arrangement in Fig. 8 allows of ready removal of the knob by providing corresponding flats on the shaft and in the bore of the knob between which one limb 42 of the clip 36 engages.
Patent GB-694330-A (GB)
Title: Improvements in or relating to a process for preparing nitrogen-containing thermosetting resins and to wet-strength paper produced therewith
IPC: C08G14/08
Filed: 1950-10-18
Abstract: Nitrogen-containing thermosetting resins suitable for making high wet-strength paper are prepared by reacting 1 mol. urea, 2-4 p  mols. formaldehyde and 0.05-0.5 mols. of a water-soluble salt of a benzene or naphthalene amino- or amino-hydroxy-sulphonic acid, or an aliphatic amino mono- or di-carboxylic acid having 1-6 carbon atoms or water-soluble salt thereof or formaldehyde condensate of such aliphatic acid or salt, concentrating the solution to 55-65 per cent solids, acidifying and further condensing to a viscosity of 5-10 poises at 60 per cent solids content, and stabilizing by rendering the solution alkaline. Amino bodies which may be added to the urea and formaldehyde are glycine, alanine, b -alanine, aspartic acid, amino malonic acid; salts of sulphanilic acid, mixed o and p, or m and p-amino benzene sulphonic acid, 1-naphthylamine-3,6,8-trisulphonic acid, 8-amino-1-naphthol-3,6-disulphonic acid, or 1 - amino - 8 - naphthol - 4,6 - disulphonic acid.  Sodium, potassium and lithium salts are mentioned.  The salts may be formed in situ in the methylol urea solution.  The solutions are added to paper pulp, precipitated on the fibres by addition of alum and cured in the formed paper (see Group VIII).  Concentration of the solution is preferably effected under vacuum or by flash concentration with or without vacuum.  The resin solutions finally produced may be dried by spray, vacuum or drum drying to produce water-soluble powders.  In examples: (1) 1 mol. urea and 2.5 mols. formaldehyde are condensed in warm aqueous solution at a pH of 7.5-7.9.  An addition product of glycerine and formaldehyde was added and the mixture concentrated at 55 DEG  C. under a pressure of 5-15 mms. Hg. The solution was then brought to pH5 and heated at 95 DEG  C. until its viscosity was 5 poises. Finally the pH was brought to 7.5-8.0 and the solution cooled.  Other examples are similar but employ (2) a condensation product of aspartic acid and formaldehyde, (3) the sodium salt of sulphanilic acid, and (4) the sodium salt of 8-amino-1-naphthol-3,6-disulphonic acid.  In each case the condensation products were added to paper pulp in the beater.
Patent GB-695178-A (GB)
Title: Semi-conductors and methods of manufacturing semi-conductors
IPC: C30B31/22
Filed: 1951-10-31
Abstract: A method of producing a barrier layer junction in a sheet of semi-conductor comprises means for introducing an impurity to convert the previously neutral sheet into an excess semi-conductor, and then causing another impurity to produce a thin layer of deficit semi-conductor at one surface.  In an embodiment, neutral germanium is heated in a rare-gas atmosphere containing volatilized copper, the germanium being supplied with a negative potential, whereupon the copper ions diffuse into the germanium to produce an excess semi-conductor.  One surface is then neutralized by heating in a helium atmosphere containing a small amount of oxygen, followed by a repetition of the original heat treatment but with volatilized aluminium instead of copper, to produce a layer of deficit semi-conductive material.
Patent GB-821455-A (GB)
Title: Improvements in or relating to packaging means
IPC: B65D5/50
Filed: 1956-08-21
Abstract: 821,455. Packing cylindrical articles in boxes ; fittings for boxes. BEST, F. R. Aug. 2, 1957 [Aug. 21, 1956], No. 25466/56. Classes 18 and 94(1). A separator for rows of jars or bottles in a box consists of a moulded pulp strip 10 formed with part-cylindrical recesses 11 interspaced by ribs 12 formed with short reinforcing ribs 14. If the recesses are semi-cylindrical two strips are placed back-to-back between each row so that the jars 15 are completely embraced by the recesses and held out of contact with one another by the abutting ribs 12.
Patent GB-187212-A (GB)
Title: Improvements in or relating to double acting engines and pumps
IPC: F01B7/20
Filed: 1922-09-20
Abstract: 187,212. Friend, E. H., and Bentley, A. G. Sept. 20, 1922. Beat or lift valves; rotary conical valves.- A double-acting piston is guided by an internal, stationary, laterally-adjustable piston 13 secured to the crank-casing by depending limbs or tubes 14. Cam-actuated lift valves 19, or toothed-geardriven rotary valves, may be arranged in the limbs or in connection with the tubes respectively, and communicate with the fluid supply or atmosphere.
Patent GB-863049-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: MYATT EDWARD RONALD
IPC: H02G3/16
Filed: 1958-08-08
Abstract: 863,049. Electrically released switches. STANDARD TELEPHONES & CABLES Ltd. July 31, 1959 [Aug. 8, 1958], No. 25510/58. Class 38 (5). [Also in Group XXXVI] Electrical spring contact members in a socket for a circuit board or card are movable against and away from the board under control of a cam bar which may be moved to inoperative position by an electromagnetically controlled trip bar and rod. As shown in Fig. 1 a socket frame 1 having a boardreceiving opening 3 carries a number of spring contacts 2 which are biased away from the opening at their free ends and a spring member 6 which bears against the frame 1, the contacts 2 and the spring member 6 having interposed between them a cam bar 8 which is movable from the inclined position shown to a vertical position to bring the contacts 2 through localized contacts 5, into contact with an inserted board. In a modification, Fig. 7, the spring plate 6 has lugs 10 with bent ends 11 for guiding the entry of a board into the socket, the lugs normally resting on shoulders on the frame and functioning to hold an inserted board in the socket clear of the contacts 2 when the cam 8 is in the inoperative position. On rotating the cam 8 to vertical position, Fig. 8, the spring contacts 2 are urged against the board 4. Insertion or removal of a board 4 while the cam is in operative position may be prevented by latching springs 13, Fig. 11, mounted alongside the contact springs 2 for actuation by the cam and having bent lugs 14 which engage an edge of the board or a hole 15 therein. The cam bar may be operated by a rod 22, Fig. 13, which in operative position is latched, against the action of a spring 29, to a guide plate 27 and the latch 25 may be tripped manually or automatically by an electromagnetically operated trip bar 30. Several boards and sockets may be mounted in a rack and have a common trip bar.
Patent GB-1308480-A (GB)
Title: Process for removing sensitizing materials from cellular extracts  with halogenated hydrocarbons
IPC: A61K39/12
Filed: 1970-05-27
Abstract: 1308480 Removing sensitizing substances from immunological material LABORATOIRE ROGER BELLON 27 May 1970 [27 May 1969] 25582/70 Heading A5B A process for removing sensitizing materials from materials, e.g. virus vaccines, obtained by disintegrating tissue cells comprises contacting the cell-extract with a liquid, halogenated hydrocarbon which is immiscible with and denser than water and separating the aqueous layer. Examples relate to the cellular extract of hamster renal cells and BHK-21 cells, alone and associated with foot and mouth disease virus, which are treated with such substances as trichlorethylene and "Freon" (Trade Mark) 113 after clarification.
Patent GB-406223-A (GB)
Title: Improvements in or relating to low-power telescopes
IPC: G02B23/00
Filed: 1933-09-15
Abstract: 406,223. Telescopes. AKT.-GES. C. P. GOERZ, OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho-Slovakia, and HOFE, C. VON, 5, Sonnleithnergasse, Vienna. Sept. 15, 1933, No. 25624. [Class 97 (i).] In a wide field low-power telescope having a plano-convex collective lens in the focal plane of the objective, the lens is so disposed that the vertex of its convex surface, which faces the eye coincides with the focus of the objective. The sighting-marks are etched on the convex surface, the curvature of which corresponds at least approximately to that of the image field of the objective.
Patent GB-606884-A (GB)
Title: Improvements in or relating to retaining devices for rods, wires, electric cables orthe like
Filed: 1944-12-22
Abstract: 606,884. Two-part couplings. CARINGTON, C. M., PICKETT, W. J., and K. L. G.,SPARKING PLUGS, Ltd. Dec. 22, 1944, No. 25799. [Class 38 (i)] [Also in Group XXVIII] A coupling for securing an electric cable in a socket comprises co-operating shoulders on the cable and socket which are engaged by lateral movement of the end of the cable in the bore of the socket, by flexure of the cable or its flexibly mounted head, and means for holding the cable against lateral displacement. The socket 10 has coaxial bores, 11, 12 connected by a smaller eccentric bore 15 so as to provide a crescent shaped flange 16 having a conical face 13 and a flat face 14. The bore 12 contains a resistance unit 17 having a metal cup 18 at its inner end and a contact comprising spring-urged thimbles 20, 21 within a split sleeve 19. The cable has an end ferrule 25 having a flange 28 and conical end face 31, the resilience of the cable covering allowing the ferrule to .be deflected through the bore 15 until the flange 28 can engage the face 14, the ferrule being centralized by the cup 18. The ferrule may be disengaged by a tool introduced through the bore 12 when the contact has been removed or through a lateral opening 32.
Patent GB-1146474-A (GB)
Title: Addition copolymers for use in surface coating compositions and compositions containing these copolymers
Inventor: HALL RICHARD WILLIAM
IPC: C08F220/04
Filed: 1966-06-10
Abstract: 1,146,474. Hydroxy esters. BP CHEMICALS (U.K.) Ltd. 16 May, 1967 [10 June, 1966], No. 25860/66. Heading C2C. [Also in Division C3] Glycidyl esters of aliphatic carboxylic acids of 4-27 carbon atoms are reacted, in the presence of a polymerization inhibitor, with a monoethylenically unsaturated aliphatic carboxylic acid so as to form a hydroxy ester of said unsaturated acid. In examples, the glycidyl ester is the commercial product " Cardura " E (Trade Mark), whose acid component is a mixture of C 9 -C 11  branched-chain aliphatic carboxylic acids; the unsaturated acid reactant is acrylic, maleic or itaconic acid, the latter two acids forming di-(hydroxyesters); and the inhibitor is hydroquinone. The hydroxy-esters are used for preparing addition copolymers (see Division C3).
Patent GB-259296-A (GB)
Abstract: 259,296. Kiddle, J. K. JuIy 6,1925. Resistance furnaces.-In a rotary electric furnace comprising a shell 9<a> enclosing resistances 10 and a refractory tube 5 for containing the material to be treated, the shell is reinforced by surrounding annular discs 21 mounted thereon and braced together near their periphery by longitudinal stay rods 33. The furnace may be used for the treatment of finely divided calcium carbonate. The tube 5 is preferably made in sections, and the resistance 10 is wound thereon. A layer 11 of plastic material which hardens and adheres to the tube is spread over the resistance. A layer of asbestos is arranged between the material 11 and the shell. The tube 5 is provided with straight or helical projections, the resistance wire following the contour of the projections. A disc 20 and a worm-wheel 12 are mounted on the furnace at the discharge end. The disc 20 engage a channeled cradle 18 pivoted on spindles carried by a bracket 14. The worm driving the wheel 12 is mounted on a shaft 15 co-axial with the cradle spindles and driven through worm gearing. The discs 21 engage rollers 24 mounted on shafts 29 carried by the cradle 18 and counterweighted yokes 30. The yokes are coupled to a screw lifting gear 45 adapted to tilt the furnace Current is supplied to the resistance through collector rings 61, 62 of hardened copper secured to but insulated from the discs 20, 21. The rings are connected to the resistance 10 and engage brushes connected to the supply leads. In a modification, Fig. 7, the discs 72 engage rollers 80 mounted in arms 76 formed in a member 87a bolted to a worm quadrant 91 pivoted on a shalt 88 in a bracket 89. A spring-pressed stud 102 normally engaging the quadrant can be withdrawn by means of a foot-operated lever 103. The inclination of the furnace is indicated by a pointer 111 secured to the shaft 88 and co-operating with a scale 113. The furnace is rotated by worm gear 71, 71<a>.
Patent GB-988464-A (GB)
Title: Method of manufacturing chemical pulp from lignocellulose material
IPC: D21C3/10
Filed: 1961-07-18
Abstract: In a process for manufacturing pulp from lignocellulose material e.g. wood chips by a two-stage sulphite digesting process, the cooking liquor for the first-stage is provided by mixing a soluble magnesium-base sulphite liquor and sufficient additional magnesium base in the presence of the lignocellulose material to provide a first-stage soluble cooking liquor having an initial molar ratio of sulphur dioxide to magnesium oxide in the range 1.4-1.85 and an initial pH of 5.9-5.0.  The lignocellulose material may be cooked in the presence of the above first-stage liquor until 15-30% of the lignocellulose is dissolved, most of the liquor then being removed (e.g. 60-65% of it), sulphur dioxide added to the digester, and cooking continued to complete the desired fibre liberation of the lignocellulose material.  In the first stage, the additional magnesium base is preferably added to the lignocellulose material after addition of the soluble magnesium base sulphite liquor. Further additional magnesium base may be added to the cooking liquor during the first stage in order to maintain the pH in the range 5.9-5.0.  The magnesium base may be dry magnesium oxide or hydroxide, aqueous slurries thereof, or may be spent sulphite liquors.  By adding additional magnesium base, precipitation of magnesium monosulphite in the liquor is prevented.
Patent GB-842983-A (GB)
Title: Adhesive sheets or tapes and a method of producing them
IPC: C09J7/29
Filed: 1956-08-27
Abstract: A hydrocarbon-resistant solvent-activated adhesive comprises a solution, for example in equal parts of toluene and ethyl methyl ketone, of a mixture containing (1) an elastomer such as a butadiene-acrylonitrile copolymer or a polyethylor other alkyl-acrylate, (2) a phenol-aldehyde or other thermosetting resin, and (3) a thermoplastic resin such as polyvinyl chloride with or without minor amounts of vinyl acetate and maleic anhydride, a paracoumarone-indene resin, or an ester-gum such as the glycerol ester of a pine wood resin, or a mixture of such thermoplastic resins.  The adhesive may contain fillers such as zinc oxide, titanium dioxide, calcium carbonate and aluminium hydroxide, a plasticizer such as dibutyl or dioctyl phthalate, an antioxidant such as polymerized trimethyl dihydroquinoline.
Patent GB-493976-A (GB)
Title: Improvements in tobacco pipes and cigar or cigarette holders
IPC: A24F7/00
Filed: 1937-09-28
Abstract: 493,976. Tobacco pipes &c. BELL, J. G. Sept. 28, 1937, No. 26190. [Class 130] The mouthpiece of a tobacco pipe or cigar or cigarette holder is formed with an upwardly and rearwardlv inclined end projection. 3 to engage the palate of an upper denture and with a lobe-like or broadbladed lower projection 5 at a short distance from the end. to engage the front surface of the teeth of a lower denture. As shown in Fig. 1, the projection 3 terminates in a pair of horns 4 ; the rear face 6 of the projection 5 may be recessed to conform to the curvature of the teeth. In a modification, Fig. 4, an additional projection 7 similar to 5 is provided at the end of the mouthpiece.