baber/WOPTO huggingface dataset:
Patent GB-1177736-A (GB)
Title: Improvements in or Relating to Junction Capacitors
IPC: H01L29/92
Filed: 1968-05-01
Abstract: 1,177,736. Semi-conductor devices. TELEDYNE Inc. 1 May, 1968 [11 May, 1967], No. 20550/68. Heading H1K. A voltage variable junction capacitor comprises a layer of one conductivity type buried within a body of the opposite conductivity type and having a columnar region of the one type extending through the body to the buried layer and having a diameter greater than the thickness of the buried layer so that when the junction between the regions of one conductivity type and the body is reverse biased the capacitance is large at low voltages and is reduced at higher voltages due to the merging of the depletion layers formed at opposite sides of the buried region. As shown, Fig. 1, an N-type epitaxial layer 12 is formed on a P-type substrate 11, an annular P-type region 13 is diffused through the epitaxial layer into the substrate to isolate the capacitor, and a shallower annular P-type region 14 is diffused into the epitaxial layer within the region 13. The resulting structure comprises a buried region 17 connected to the surface by a columnar region 16, the diameter D of the columnar region 16 being greater than the thickness L of the buried region 17. Ohmic contacts 18, 19 are applied to the columnar region 16 and the substrate 11 respectively. In operation the capacitance is large at small reverse bias voltages but decreases at higher voltages due to the merging of the depletion layers of junction portions 17a and 17b within the layer 17. The capacitor may be used for the removal of minority carrier charges stored in the base region of a transistor and may be incorporated in a monolithic or hybrid integrated circuit.
Patent GB-326732-A (GB)
Title: Improvements in clockwork controlling devices for pigeon competition flights and the like
IPC: G07C1/26
Filed: 1929-07-04
Abstract: 326,732. Martens, H. July 4, 1929. Addition to 323,442. Time-checking apparatus. - In apparatus particularly for timing the flight of pigeons as described in the parent Specification and in Specification 326,731, the needles for puncturing the time-driven record-disc instead of being mounted on the arms of the auxiliary balance lever are mounted under a pair of superposed members supported by a pair of resilient blades, the needles being caused to perforate the recorddisc by the weights on the balance coming into contact with the blades when the apparatus is oscillated. In the form shown the balance lever 1 with adjustable weights 5 is maintained in the position of equilibrium by light spring blades 4. On the plate 6 is mounted a pair of members 7 each carrying a needle 8 and a spring blade 9 having a perforation through which the needle passes. When the balance oscillates the weights 5 press the superposed members 12, 13 and the record-disc therebetween so as to cause the needle to puncture the record-disc and stress the blade springs which ensure the return of the balance lever. Recesses are provided in the weights 5 to receive the point of the needles.
Patent GB-140314-A (GB)
Title: A new and improved machine for pressing garments more especially coat collars and shoulders, also applicable for opening and pressing the seams of such garments
IPC: D06F71/08
Filed: 1919-08-22
Abstract: 140,314. Wilkie, W. Aug. 22, 1919. Addition to 121,923. Ironing-machines with pressing action only.- The machine described in the parent Specification is made duplex, the movable presser head C being operated as before by pedals F, counterweighted linkage and rams E.
Patent GB-373837-A (GB)
Title: Lubricating means
IPC: F16N7/12
Filed: 1931-07-20
Abstract: 373,837. Lubricating bearings. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Cleveland Tractor Co. ; Cleveland, Ohio, U.S.A.) July 20, 1931, No. 20692. [Classes 12 (ii) and 12 (iii).] In a motor vehicle wherein the rear end of the engine crank shaft 14 and the front end of the propelled shaft 22 are mounted in adjacent bearings 18, 23, the bearing 18 being supplied with lubricant through a pipe 40, a radial duct 31 leads from the bearing surface of the crank shaft to an axial passage 30 extending from the end thereof and the end of the passage is fitted with a screwed plug 33 having a venturi passage therethrough in which is gripped a wick 35, one end of which abuts against the end of the shaft 22 while the other extends into the passage 30. A limited amount of the lubricant entering the passage 30 from the bearing 18 is thus fed to the end of the shaft 22, whence it spreads to the bearing 23, the remainder being returned to the crank case through passages 32. The bearing 23 is carried in the flywheel 20, which is secured to the shaft 14 and forms one of the clutch elements.
Patent GB-488970-A (GB)
Title: Improvements in or relating to conversation booths or telephone and like cabinets
IPC: E04H1/14
Filed: 1937-07-27
Abstract: 488,970. Telephone cabinets. BURGESS LABORATORIES, Inc., C. F. July 27, 1937, No. 20755. Convention date, July 31, 1936. [Classes 20 (i) and 20 (ii)] A conversation booth, telephone cabinet, or the like, has its inner surface formed of sound-proof construction to absorb sounds incident thereon and is provided with one or more ventilation apertures, the arrangement being such that, that external sound is not excluded from the booth but is absorbed before it can reach the users. The walls and roof are lined on the insides by perforated membrane panels 19 as described in Specification 327,186, [Class 20 (ii)], the abutting inturned flanges of the panels being welded together at 33, Fig. 2, with or without strengthening strips 34; porous fibrous packing such as mineral wool, animal hair and the like is placed behind the lining of sufficient thickness to ensure good absorption and the outside is covered with flat steel plates 11. To render the outside covering material antivibrational, it is backed by a corrugated layer of cardboard 25, or wooden slats, and a surface layer of paper 26, the surfaces of the slats or the corrugations of the cardboard being attached securely to both outer and inner plates. The outer lining may be stiffened by horizontal V-shaped bars welded to the outer plate. The flanged edges 27 of the outer plates of both walls and roof are interlocked with the edges of the lining plates by seamed joints and the roof may be joined directly to the upper edges of the wall plates or spaced therefrom to afford ventilation. The walls and back are supported by a horizontally disposed channel-section bar 35 carried by uprights 16 and brackets 17, so that the bottom of the booth is open. No door is provided, the increase of depth above the width ensuring that persons in the booth near the rear wall may speak together undisturbed by extraneous noises. When used as a telephone cabinet a support 20 for the telephone 21 is provided on the rear wall and the buzzer or bell 22 is attached to a skirting plate 23 depending from the rear wall. The booth may be of rectangular cross-section or of oval cross-section with a narrowed entrance as shown in Fig. 4, in which case, the outer plate 40 need not be of the compound form previously described, since a curved plate does not have the same tendency to vibrate as a flat plate.
Patent GB-647350-A (GB)
Title: Recovery of salts of copper and tartaric acid from waste cuprammonium cellulose solutions
IPC: D01F2/04
Filed: 1947-07-31
Abstract: Tartaric acid and copper are simultaneously recovered in the form of salts from waste acids and alkaline waste waters accumulating in the manufacture of cuprammonium cellulose products from cuprammonium cellulose solutions containing tartrate ions by the steps in sequence comprising mixing at least one waste acid containing copper and tartaric acid with at least one alkaline waste water containing copper and tartrate ions in a proportion sufficient to cause at least a partial precipitation of copper and tartrate salts in the form of a slurry, heating said slurry in the presence of a base to convert the said copper salts into copper oxide while said tartrate precipitate remains unchanged, dissolving said copper oxide and tartrate precipitate by adding an acid thereto to form a soluble copper salt and tartaric acid and then adding a base in an amount sufficient to form a precipitate comprising essentially a basic copper salt and a tartrate.  The method is applicable to the "funnel stretch spinning process" wherein the spinning solution is extruded into substantially neutral water passing through funnels in which the spinnarets are mounted.  The issuing "blue water" contains one or more copper salts combined with ammonia, hydroxyl ions and a salt of tartaric acid. This solution and other waste copper solutions obtained during the spinning are suitable alkaline waste waters.  The extruded threads are hardened by treatment with dilute acid and washed in skeins with more dilute acid and these waste acids constitute the other source of copper and tartaric acid.  According to examples: (1) blue water, waste copper solution, waste acid and skein wash acid are mixed in proportions giving a pH value of 6.4 to 7.8 and the resulting slurry comprising cupric hydroxide, basic copper sulphate and complex copper tartrates is concentrated by settling and then heated with sodium hydroxide solution at 60 DEG  to 75 DEG  C. and a pH of 10.5 to 11.0. The compact copper oxide and tartrate precipitate is removed and dissolved with added copper sulphate in aqueous sulphuric acid, cooled, more d-tartaric acid added, the mixture filtered and the resulting filtrate treated with sodium carbonate solution to precipitate the copper as basic copper sulphate and the tartaric acid as a tartrate; this mixture may be used in preparing a fresh spinning solution; (2) blue water is mixed with lime solution in flow rates giving a mixture of pH 10 to 10.5 and after settling, the precipitated slurry is mixed with a slurry obtained as in (1) and the mixed slurry treated as above. Hydrochloric acid, potassium hydroxide and potassium carbonate may replace the sulphuric acid and sodium hydroxide and carbonate.
Patent GB-148976-A (GB)
Title: Improvements in electromagnetic sound producers and receivers
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,976. Signal Ges. Aug 14, 1918, [Convention date]. Subaqueous audible signals.-In an electro-magnetic instrument for transmitting or receiving subaqueous signals, the armature and field-coils are connected by a member 7, part of which lies in a plane and vibrates at right angles thereto. The instrument is enclosed in a casing which includes the diaphragm 2. Polygonal or circular field coils 10, 11, which carry polarising current and alternating current respectively, are surrounded by a magnetic circuit formed of radially arranged iron laminµ 8, 9, which are welded together and to the carrying plates 13, 14. The plate 14 carrying the armature 9 is mounted on a hood 7 integral with the cup 5, which carries the field coils and is bolted to the diaphragm 2. The leads to the coils are brought in through a boring in the screw 12. The air gap can be inspected through a sight hole 16. The horizontal elastic part of the member 7 which connects the field-coils and armature may be formed as a diaphragm or plate or as a cross-beam, rods or the like. In a modification, the armature mounting is bolted to the diaphragm, and is connected to the field coils by a central pillar instead of the hood 7. Specification 148,413 is referred to. Reference has been directed by the Comptroller to Specification 148,417.
Patent GB-1142188-A (GB)
Title: Rotary-die machines
IPC: B26D7/18
Filed: 1967-05-04
Abstract: 1,142,188. Cutting and stripping blanks. R. J. PALLE. 4 May, 1967, No. 20853/67. Heading B4B. A rotary die machine for cutting blanks B in sheet material P comprises a rotatable cylinder 12 having cutters 19 mounted thereon and a rotatable die cylinder 14 having a resilient cushion face 20, the cylinder 14 and face 20 having apertures 44 therein registering with the cutters, and the cylinder 14 being provided with a stationary chamber 36 defined by end walls 38 and radial walls 40, the chamber 36 being mounted on an apertured pipe 30 connected to a vacuum pump 32, the arrangement being such that as the blanks B are cut from the material P, they adhere to the face 20 of the roller 14 until they pass beyond the chamber 36 when they either drop off or are stripped by a doctor blade at position 46.
Patent GB-1590521-A (GB)
Title: Video record disc and player
IPC: H04N5/76
Filed: 1978-05-19
Abstract: A video recording disk is adapted to be rotated at a uniform angular velocity and to have bit positions of substantially equal length along a track, and the longer outer tracks are given more storage positions than the shorter inner tracks. Variable numbers of frames are located on each track revolution, depending on the data capacity of the track. Frames are divided into data units that correspond to a few horizontal lines, and frames on the same track are interlaced so that the data units of each frame are distributed evenly around the track revolution. The associated record player has simplified data storage requirements, particularly for freeze frame display of the television picture and for playing disks that hold video information in a data compression format.
Patent GB-239048-A (GB)
Title: Improvements in connection with the treatment of fabrics and materials especially umbrellas and sunshades against moisture and climatic conditions
IPC: D06M15/693
Filed: 1924-09-06
Abstract: 239,048. Gibson, C. J. Sept. 6, 1924. Distempers. - Silk and other fabrics are rendered impervious to moisture by treatment with a mixture of rubber latex and alcohol.
Patent GB-426856-A (GB)
Title: Manufacture of derivatives of nucleotides
IPC: C07H1/00
Filed: 1934-07-20
Abstract: Derivatives of nucleotides are prepared by treating the nucleotide with an acylating agent, preferably in the presence of a tertiary base such as pyridine, quinoline, or dimethylaniline. Specified nucleotides are adenylic acid from yeast or muscle, guanylic acid, and cytidylic acid.  The acylated nucleotides are preferably purified by precipitation by means of a heavy metal salt or by convertion into a salt of an organic base, particularly an alkaloid.  In examples: (1) yeast adenylic acid is suspended in pyridine, acetic anhydride added, the mixture heated for 3 hours and the pyridine removed; (2) muscle adenylic acid is treated similarly; (3) yeast adenylic acid is suspended in pyridine, benzoyl chloride added and the mixture allowed to stand overnight, and the pyridine removed; (4) yeast adenylic acid is refluxed with a large volume of acetic anhydride and sodium acetate, treated with water, and purified by convertion into the lead salt; (5) yeast adenylic acid is suspended in pyridine, acetic anhydride added, the mixture heated for two hours and the pyridine removed. The product is extracted by convertion into the lead salt, and then removing the lead with H2S.  The product is purified by convertion first into the brucine salt, then into the ammonium salt and finally into the lead salt.  The free acid being recovered as before.  The Specification as open to inspection under Sect. 91 comprises also the following examples (6) cytosine-phosphoric acid is suspended in pyridine, acetic anhydride added, the mixture heated for 2\ba1/2\be hours, and the pyridine removed; (7) crystallized guanylic acid is suspended in pyridine, acetic anhydride added and the mixture heated for 5 hours; (8) uridine phosphoric acid is suspended in pyridine, acetic anhydride added and the mixture heated for 2\ba1/2\be hours.  In examples 6, 7 and 8, the product is obtained in the form of a light yellow resin.  This subject-matter does not appear in the Specification as accepted.
Patent GB-205035-A (GB)
Title: Improvements relating to boring and particularly to reboring engine cylinders
IPC: G01B3/18
Filed: 1922-05-01
Abstract: 205,035. Wepplo, I. W. May 1, 1922. Boring. - A gauge also described in Specification 203,018 for determining the diameter cut by a boring bar having adjustable cutters comprises a micrometer gauge attachable to the bar against which the tools are set. A frame 60 carries a loop 60<a> which fits accurately over a cap on the end of the bar and also carries a barrel 61 forming a nut for a screwed plunger 62, against the end of which the tool is set. A head 63, screwed on the plunger and locked by a nut 64, is graduated to read thousandth's of an inch, while the barrel is graduated to read inches and eighths. Both scales are half size so as to read diameters directly.
Patent GB-1072352-A (GB)
Title: Process for electroplating on aluminium or on alloy thereof
IPC: C25D5/44
Filed: 1964-05-22
Abstract: In a process for electroplating on a base of aluminium or an aluminium alloy, e.g. containing 1.5% magnesium, the base is contacted with an activating aqueous solution containing sodium or potassium stannate and while still wet with said solution is cathodically connected and immersed as a "hot" contact into an alkaline strike plating bath containing an anode to deposit a metal layer on the base.  Typically the stannate activating solution is used at 15 to 65 DEG C. and contains 10 to 70 g/1 of tin and up to 3.5 g/1 free hydroxide, and the base is immersed in it for 5 to 300 secs. The "hot contact" connection may last for 5 to 20 secs. before immersion into the alkaline electroplating bath.  The electroplating bath may be cyanide copper, zinc, or cadmium or pyrophosphate copper solutions.  Brass and bronze may also be deposited on the activated base from alkaline baths. Chromium, nickel, copper or tin may be plated over the copper, zinc or cadmium plating.  In an example, bright nickel may be plated on top of the cyanide copper deposit to provide an adherent multilayer coating on the base.  The activating stannate bath may contain polyhydroxy carboxylic and polyaminopolycarboxylic acids and their salts such as E. D. T. A., N.N-dihydroxy ethyl glycine, and gluconic, heptoglyconic and saccharic acids; and the cyanide copper bath may contain Rochelle salt, gluconates, or polyaminopolycarboxylic acids or salts. Prior to the activating treatment the base may be vapour degreased, given an alkaline cleaning dip and then dipped in a HF-HNO3 mixture.
Patent GB-517467-A (GB)
Title: Improvements in and relating to hydraulic piston valves
IPC: F01L15/00
Filed: 1938-07-20
Abstract: 517,467. Valves. TOWLER, J. M., and TOWLER, F. H. July 20, 1938, No. 21499. [Class 135] A hydraulic control valve comprises a piston valve 2, Fig. 1, sliding in a casing 1, which is provided with a central chamber 4 in connection with a continuously acting pump, and with outer chambers 3, 5 for delivering to hydraulic apparatus. Ports 18 lead from the chamber 4 to the hollow interior of the piston, from which pressure liquid can pass through non-return valves 17 at either end of the piston, and through ports 19 to one or other of the chambers 3, 5 leading to the hydraulic cylinder or cylinders. The valve has reduced parts 11 at its ends, past which the pressure liquid can escape to exhaust. When the valve is in the central position, both of the outer chambers 3, 5 are open to exhaust. When the piston is moved through half its stroke in either direction by means of a hand-lever 20, one chamber is closed to exhaust, and the pressure escapes through one of the non-return valves and through the other chamber, which remains open to exhaust. The full stroke of the piston cuts off from pressure the chamber that is open to exhaust, so that the liquid passes through the other non- return valve to the chamber that has been closed to exhaust, and operates the cylinder connected thereto. In a modification, the valve has two sets 18, 18a, Fig. 3, of central ports, so that pressure passes directly from the pump to the actuated cylinder without passing through the non-return valve. The arrangement may be adapted for supply to single outlet chamber, the piston valve having a single non-return valve and being adapted to open to exhaust at either end.
Patent GB-702235-A (GB)
Title: Improvements in packages
Inventor: ROSE ALFRED GERMAN
IPC: B65D5/70
Filed: 1951-09-13
Abstract: 702.235. Opening boxes by tearing. ROSE BROS. (GAINSBOROUGH), Ltd. July 29, 1952 [Sept. 13, 1951], No. 21506/51. Class 66 A rectangular carton of the kind formed from a blank of stiff paper or cardboard as in Specification 675,522 has the lines of folding of the top endforming flaps perforated or otherwise weakened along at least a portion of their length extending from the edge of the carton containing the lateral tab for opening. A blank 11 (Fig. 1) comprises side panels 12, 13 joined by a bottom panel 14 and having side flaps 18, 19, and top end flaps 16, 17. A tab 24 to facilitate opening extends laterally from the top end flap 17 and perforations 26 are provided along part of the fold lines of flaps 16 and 17. Score lines 27 on the end flaps 16, 17 define with the perforations 26 an opening panel 25 (Fig. 3). The tab 24, initially held against the side 18 as in Fig. 2 (not shown), by a small spot of adhesive, is lifted to tear open the panel 25 and the carton may be subsequently closed by inserting the tab 24 in the pocket 29 formed between side flaps 18 and 19 by leaving their top portions free from adhesive.
Patent GB-928276-A (GB)
Title: Method of producing an iridised pattern
IPC: C03C17/06
Filed: 1960-06-21
Abstract: An iridized pattern is produced on a refractory substrate surface by applying to the surface a metal masking coating in the form of a liquid suspension of metal particles which outlines a pattern which it is desired to iridize, forming an iridized film over the exposed surface, and removing the metal coating.  Silver, which may be applied as powder or flake suspended in a vehicle, e.g. a fatty oil, turpentine or analcohol, to form a paint, may be employed; it may be applied by spraying through a stencil, or by silk screen methods. After heating, applying an iridized coating by known methods, and cooling, the metal mask is removed by chemical treatment, e.g. with a solution of ammonium bifluoride in the case of silver. Specifications 340,371 and 639,561 are referred to.