baber/WOPTO huggingface dataset:
Patent GB-110886-A (GB)
Title: Improvements in Apparatus for Controlling Brake Valves.
Inventor: BUHL CARL HENRY
IPC: B60T13/66
Filed: 1916-10-25
Abstract: 110,886. Buhl, C. H. Oct. 25, 1916. Track apparatus for stopping trains.-The magnet l which normally holds the brake valve closed is maintained energized by current from the battery 89 passing the contacts of the relay r which is energized from the track ramp 101 and generator 103. In order to allow the driver to release the brakes, if necessary, the switch 80<a> is closed and the driver's valve 86 is moved to re-setting position thereby completing the circuit to the holding relay m which closes a circuit to the magnet l independently of the relay r The relay m maintains this circuit after opening of the contact on the driver's valve. The brake valve described in Specification 111,870, [Class 103 (i), Brakes &c.], may be controlled by the magnet i.
Patent GB-931238-A (GB)
Title: Improvements in or relating to water purification
Inventor: SONTHEIMER HEINRICH
IPC: C02F1/52
Filed: 1962-02-26
Abstract: 931.238. Purifying water. METALLGESELLSCHAFT A.G. Feb. 26, 1962, No. 7460/62. Class 46. The capacity of a suspension-circulation treatment plant is increased in an apparatus in which agitator 8 circulates liquid from the reaction zone 5 to a superposed distributing zone 9, through outlets 10 into separating zone 6 and via outlets 11 back to the reaction zone, untreated water being supplied to this circulation by channel 12. By means of the throttling valve 20 the volume of water flowing into the purifying basin can be two or three times as large as that flowing into the separating zone.
Patent GB-1412066-A (GB)
Title: Inorganic coating composition
IPC: C09D1/10
Filed: 1973-02-15
Abstract: 1412066 Silica gels SHIKOKU KAKEN KOGYO KK 15 Feb 1973 [25 Feb 1972] 7543/73 Headings C1A and C1H [Also in Division C4] An aggregate for use in inorganic coating compositions consists of a granular and fired product of silica gel, each granule of silica gel having a continuous surface layer and being a semi-closed cellular body, which is substantially non-absorbent to water vapour but absorbs liquid water to an extent 10-400 wt. per cent. The aggregate may be produced by gelling silica solution at a pH not higher than 7, drying the gel and firing the dried gel at 1000-1600‹ C. for foaming with or without pre-firing at 500- 900‹ C. In Example 1 water glass having a Na 2 O/SiO 2  ratio of 1 : 3À1 was diluted to a SiO 2  concentration of 8À5 wt. per cent and was poured into 15% H 2 SO 4  to produce a SiO 2  solution of pH 3 which was heated to 60‹ C. to obtain a silicon hydrogel. The hydrogel was washed and dried at 250‹ C. A portion was prefired at 700‹ C. for 30 minutes and then fired in a rotary kiln at 1400‹ C. to obtain a foamed product having a bulk density of 0À21 g/cm.<SP>3</SP> The silica aggregate is used in aqueous coating compositions which contain as binder Portland or Kean's cement, lime, gypsum or dolomite plaster. Optional components include gum arabic, casein, dextrin, starch, cellulose derivatives, polyvinyl alcohol, CaCl 2 , asbestos, rock wool, cotton and nylon.
Patent GB-743208-A (GB)
Title: Improved method of drilling
IPC: B23Q1/54
Filed: 1953-03-19
Abstract: 743,208. Drilling-machines. HINDMARCH, T. Feb. 26, 1954 [March 19, 1953], No. 7664/53. Class 83 (3). A drilling-machine for long holes located eccentrically in a workpiece comprises a bed carrying a saddle with a spindle and chuck and movable parallel to the spindle axis, a headstock also mounted on the bed for rotation about the axis of the drill and comprising a cylindrical member mounted in bearings on its periphery and having its ends bored eccentrically to its axis of rotation and receiving in said bores a casing for holding the work, and means to rotate the drill and headstock in opposite directions at different speeds. The drill 14, Fig. 1, is carried by a spindle 6 fed by a quill 5 and hand wheel 7. The drill is rotated by a belt 12 from an electric motor 9 above the head 2 carrying the drill. The head is adjustable along the bed by a hand wheel 3 and rack and pinion. Chucks.-The work, indicated in broken lines in Fig. 1, is carried by a sleeve 26 secured eccentrically in a rotatable drum 15 by an end-plate 31 and screwed sleeve 34. At its opposite end the sleeve 26 has a split clamping- member 27 secured thereto by bolts and slots. The clamping member secures the work in the sleeve and is adjustable transversely to the sleeve axis by pegs 30, fitting an eccentric series of circular holes 29 in the sleeve in the manner of a dividing head. The drum 15 is rotated slowly, oppositely to the drill, by gearing 20-24 and an electric motor 19. Weights 35 attached to the drum 16 balance the work &c.
Patent GB-199135-A (GB)
Title: Improved electro-magnetic relay
IPC: H01H51/20
Filed: 1922-03-16
Abstract: 199,135. Crowe, D. C. March 16, 1922. Relays.-An electromagnetic relay designed for the selective actuation of any one of a. number of contacts has a single magnetic circuit, a plurality of armatures, and a winding forming a closed loop and divided into a number of sections by flanges of magnetic material provided on the core. The end sections c of the core, connected by a magnetic yoke a, may for convenience be arranged at right angles to the remaining sections b. The winding has tapping-point connections between adjacent sections, the point between the sections c being permanently connected to one pole of a battery h. The other pole of the battery may be connected selectively to any one of the other points, the current supplied dividing at the selected point and producing a magnetic pole in the corresponding flange and attracting the corresponding armature f to close the required contact. Arrangement may be made whereby each armature can be made to operate selectively any one of a number of contacts. Fig. 1 shows an arrangement whereby the number of contacts may be twice the number of armatures. Each armature f is adapted to raise a pin k, the lower end of the pin resting on the armature, the upper end serving to close the contact. Each pin passes through a hole in a fixed plate i, and through a hole in a plate l which can be shifted by an electromagnet m, so that the upper end of the pin engages with either of a pair of contacts g as desired.
Patent GB-400499-A (GB)
Title: Improvements in and relating to the di-electric of condensers
IPC: H01G4/16
Filed: 1933-03-14
Abstract: 400,499. Condensers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Meirowsky & Co. Akt.-Ges. ; Porz-on- Rhine, Germany.) March 14, 1933, No. 7767. [Class 38 (ii).] The dielectric material for impregnation in a condenser comprises cellulose papers a near to the metallic armatures A, B, and rag papers b further from them.
Patent GB-243218-A (GB)
Title: Improvements in or relating to reduction gears for use in adjusting radio tuning instruments
IPC: H03J1/14
Filed: 1925-03-23
Abstract: 243,218. Burndept, Ltd., Phillips, C. F., and Woodell, S. F. March 23, 1925. Friction gearing. - An adjusting device for transmitting motion at a reduced speed to the rotary part, such as a condenser, rheostat or inductance coil, of a wireless set comprises a knob 3 on the shaft of which is a friction rim 5 engaging friction planet pinions 7 which engage a fixed rim 4a and are mounted on a carrier 7b fixed to the driven shaft 1. The planet carrier consists of spaced radial arms 7a between which the planet pinions are mounted; the latter consist of pairs of wished spring washers mounted on screws 10<a> passing through slots in an inverted metal dish 10 provided with a scale.
Patent GB-400921-A (GB)
Title: Improvements in the manufacture and production of water-soluble azo dyestuffs
Filed: 1932-03-16
Abstract: Water-soluble azo dyes are made by coupling diazotized aromatic amines substituted by acylamino groups of aliphatic carboxylic acids containing at least 10 carbon atoms with ketones which are capable of forming an enolic isomeric compound and which contain an aromatic ring to which at least one sulpho group is attached. Amines of the benzene and naphthalene series are mentioned.  In examples, the following dyestuffs are described: (1) p-aminolauric acid anilide --> 1-(m-sulphophenyl)-3-methyl-5-pyrazolone or 1-(p-sulphophenyl)-5-pyrazolone-3-carboxylic acid (yellow on wool fast to washing and fulling), (2) p-aminostearic acid anilide --> acetoacetic-o-anisidide sulpho acid (obtained by sulphonation). Arylides referred to above are made by condensing an aromatic diamine with an aliphatic carboxylic acid (or chloride) containing at least 10 carbon atoms.  The acid chlorides of capric, lauric, palmitic, margaric, stearic, oleic, elaidic, ricinoleic, linoleic, or the acid present in soya bean oil are specified.  Reference has been directed by the Comptroller to Specification 393,966.
Patent GB-687389-A (GB)
Title: Improvements in bell gas holders
IPC: F17B1/00
Filed: 1951-04-04
Abstract: 687,389. Gas producers. KOPPERS GES., H. April 4, 1951 [April 4, 1950], No. 7831/51. Class 55 (i) [Also in Group XXIX] The blast supply to one or more gas producers 6 is automatically controlled by a throttle flap 16 which is opened when the pressure in a gas holder 1 rises and closed when it falls. The flap is operated by a regulator 17 connected by a pipe 18 to the storage space of the holder. The producer is connected through a washer 8, a gas respirator 10 and a non-return valve 12 to a pipe 11 leading to the holder 1 and the point of consumption, which may be a regeneratively heated coke oven battery. The displaceable member of the holder is provided with loading members 3 and floats 19 so that large increases or decreases of pressure are required to displace it from the positions corresponding to normal pressure.
Patent GB-412356-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01K11/00
Filed: 1933-03-15
Abstract: 412,356. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand- Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) March 15, 1933, No. 7849. Convention date, March 24, 1932. [Class 39 (i).] The anode is heated to a colour temperature which exceeds 2000 K. by thermionic emission from an indirectly heated cathode having an equipotential surface. The cathode g is surrounded by a spiral anode o each turn of which is secured to a support n connected to the leading-in wire i. The heater leads, as shown, are connected to the cathode and anode leads respectively. The cathode consists of barium oxide deposited upon a metallic coating e formed on a tube a of magnesia or aluminium oxide within which is located a spiral heater c. The ends of the heater, supports, leads &c. are covered with insulating material or are shielded by conductors at a low potential, e.g. the potential of the cathode. The electron emission may be controlled by a grid suitably biassed by connecting it to a point on the cathode heater. The bias may be negative if the potential applied between the anode and cathode is a part of the potential fall along the cathode heater obtained by suitable tappings thereon. Space charge may be reduced by a gas or vapour, e.g. mercury vapour at a pressure of À01 mms. or less. Fluorescent coatings such as zinc silicate or calcium tungstate may be used to increase the luminosity. The anode may be coated with one or more of the materials aluminium oxide or rare earth oxides, which may be mixed with conductive materials and applied to a tungsten base. It may consist of a cylindrical, conical, spherical, wire-gauze or network surface enclosing the cathode. Increase in the current density towards the point of connection of the anode with the leading-in wire may be neutralized by tapering, or by a variable spacing of the turns of a spiral anode or by the provision of transverse ribs.
Patent GB-595018-A (GB)
Title: Improvements in or relating to the preparation of derivatives of p-aminobenzenesulphonthiourea
Filed: 1945-03-28
Abstract: Therapeutically useful derivatives are prepared by condensing p-aminobenzenesulphonthiourea with a dibasic carboxylic acid anhydride.  In examples: (1) p-aminobenzenesulphonthiourea is condensed with succinic anhydride in the presence of acetone to give p - succinylaminobenzenesulphonthiourea, and (2) p - aminobenzenesulphonthiourea is condensed with phthalic anhydride in the presence of acetone to give p-phthalylaminobenzenesulphonthiourea.  The use of maleic anhydride also is referred to.  Specification 589,730 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the condensation of p-aminobenzenesulphonthiourea with dibasic acids, esters and halides.  This subject-matter does not appear in the Specification as accepted.
Patent GB-120518-A (GB)
Title: Improvements relating to Holding and Feeding Mechanism for use in Punching and Boring Profiled Iron and the like.
Inventor: OERVIG KARL BOERRESEN
IPC: B23Q3/10
Filed: 1918-05-10
Abstract: 120,518. Orvig, K. B. May 10, 1918. Punching; metalsheet feeds. - An angular metal bar 1 is held by shaped rollers 5, 6 mounted on two frames 7 which are pivoted at 8 so that the bar can he turned in order to drill or punch holes in either web. One or more of the rollers may be driven as by a hand wheel 10 to feed the bar, and the angular movement of the frame is limited by stops 17. The end of the bar is clamped by bars 14 to a pivoted support 12 carried by a truck 4.
Patent GB-274812-A (GB)
Title: Method of and means for control of the performance of refrigerators
IPC: F25B41/06
Filed: 1927-03-22
Abstract: 274,812. Ges. fur Linde's Eismachinen Akt.-Ges. July 21, 1926, [Convention date] Flow meters, pressure-actuated. - The flow of liquid refrigerant through a port a to the expansion valve of a refrigerating machine is calculated from the difference in pressure of the liquid on either side of an orifice plate f located in a passage c having a sighting glass e and communicating with a second passage h connected to the expansion valve. The temperature of the liquid refrigerant is shown by a thermometer b, while the difference in pressure is recorded on a gauge g. Associated with the dial of the gauge is a scale for indicating the refrigerating capacity of the machine corresponding to the temperature and the pressure difference.
Patent GB-308460-A (GB)
Title: Improvements relating to clutches for use in connection with the platens of typewriting machines
IPC: B41J11/24
Filed: 1928-03-16
Abstract: 308,460. Salter & Co., Ltd., G., Bache, E. W., and Bell, A. March 16, 1928. Platen-roller couplings.-The line-spacing wheel is coupled to the platen by means of a spring-urged coned disc which engages a conical seat in a member attached to the platen spindle and is provided with pins slidable in holes in a cup or the like attached to the line-spacing wheel. In the coupling shown in the Figure, a sleeve 2, secured to the platen spindle 4 and a knob 1, is formed with a cup 5 engaging a cup 8 on a sleeve 9 secured to the line-spacing wheel 10. A seat 6 on the cup 5 engages a coned plate 12 secured to rods 14 which enter holes in the cup 8, a spring 13 normally holding the plate in contact with the seat. The linespacing wheel is released by pressing inwards a button 17, axially-movable rods 16 carrying the button being provided with a plate 15 for displacing the plate 12.
Patent GB-948552-A (GB)
Title: A current supply installation comprising synchronous generators connected in parallel
IPC: H02J3/46
Filed: 1962-03-01
Abstract: 948,552. Running generators in parallel. SIEMENS-SCHUCKERTWERKE A.G. March 1, 1962 [March 2, 1961], No. 8090/62. Heading H2H. A plurality of parallel connected dissimilar self-regulating synchronous generators have their exciter windings connected in parallel, either directly or through tapped impedances 14, 15 to ensure proportionate division of reactive current. The exciter windings, e.g. 1, are fed through rectifier 3 from a transformer 4 which has both voltage and current primary windings. Self-excitation is provided by capacitors 9. The tappings on the impedances are selected to give equal voltages to the connecting conductors 12, 13.
Patent GB-491709-A (GB)
Title: Improvements in or relating to friction clutches
IPC: G09B19/00
Filed: 1938-03-16
Abstract: 491,709. Friction clutches. BORG & BECK CO., Ltd. March 16, 1938, No. 8189. Convention date, Aug. 26, 1937. [Class 80 (ii)] Centrifugal engaging pressure is applied to the pressure plate 17 of a plate clutch by the wedging action of pairs of coaxial rollers, one roller 38 of each pair being rotatable freely through bearing rollers 41 about the other roller 39. The rollers move radially outwards under the influence of centrifugal force, the longer inner roller 39 engaging a pair of camming surfaces 44 on the pressure plate while the outer roller 38 engages a camming surface 43 on the clutch cover plate 11. Each pair of rollers is maintained in engagement with the camming surfaces by light springs 46. The centrifugal pressure serves to augment the pressure of engaging springs (not shown) acting between the plates 11 and 17. Disengagement is effected through radial levers 20 which act on lugs 32 of the plate 17 through struts 33.
Patent GB-1007487-A (GB)
Title: Upholstery webbing
Inventor: ADEY BRIAN ARTHUR
IPC: B29C70/16
Filed: 1961-03-07
Abstract: 1,007,487. Woven fabrics. DUNLOP RUBBER CO. March 2, 1962 [March 7, 1961; and Feb. 7, 1962], No. 8189/61 and 4628/62. Heading D1K. [Also in Divisions B2 and B5]. A fabric comprises longitudinally extending substantially parallel convoluted threads and longitudinally extending frangible threads which are shorter than the convoluted threads and are breakable by extension of the webbing. The fabric may be woven from yarn 1 composed of crimped ground warp threads 2, e.g. of nylon or viscose, and frangible warp threads 3, e.g. of cotton, which are substantially free of crimp and in which the crimped ground warp threads may be wrapped around the frangible warp threads. The fabric may have a weft 4 of jute yarn. The ground warp threads may be convoluted due to the crimp imposed by interlacing during weaving. The substantially striaght frangible warp threads may lie between two rows of weft threads. Upholstery webbing may be produced by applying an elastomer yielding plastic composition 5, e.g. vulcanizable natural or synthetic rubber, to the fabric and converting the composition into an elastomer, e.g. by vulcanization. Calendered sheets 6 of rubber compound may be applied to the faces of the coated fabric prior to vulcanization, and the assembly then vulcanized. The coated fabric may be severed longitudinally into strips of webbing. The coated fabric or webbing may be extended sufficiently to break the frangible threads.
Patent GB-572223-A (GB)
Title: Improvements in or relating to pump barrels composed of glass and like frangible material
IPC: A61M3/00
Filed: 1944-05-01
Abstract: 572,223. Glass pump barrels. PHETHEAN, N., and BULL (ELY), Ltd. May 1, 1944, No. 8193. [Class 56] [Also in Group VI] The ends of a length of glass tubing forming the barrel of a hypodermic or other syringe and left rough or sharp by the cutting or cracking off operations are made smooth and rounded in section, as at 12, by heating the ends beyond the softening temperature of the glass. Subsequently the whole tube is heated and cooled slowly to anneal the glass. After treatment the tube is fitted into the usual metal cap and socket and is secured therein.
Patent GB-706819-A (GB)
Title: Improvements in and relating to resonant windows in waveguide apparatus
IPC: H01P1/08
Filed: 1952-04-02
Abstract: 706,819. Coating with metal. BRITISH THOMSON-HOUSTON CO., Ltd. April 2, 1952 [April 2, 1951], No. 8394/52. Class 82 (2) [Also in Groups XXII and XL (b)] A glass or ceramic window 9 for an electromagnetic waveguide is coated with metal on its edges and margins and then brazed to a frame 3. The metal. lizing may be done by the manganese-molybdenum process described in Specification 656,724. Alternatively the plate may be painted with powdered titanium hydride in a suitable carrier, a body of solder being placed in position to flow into contact with the metallized surface when melted. After assembly of the parts, the plate is heated in a vacuum to a temperature sufficient to dissociate the hydride and melt the solder; the metallizing and soldering being thus accomplished in one operation.
Patent GB-1201881-A (GB)
Title: Improvements in air-removal hoods for multi-cylinder driers
IPC: F26B13/18
Filed: 1969-02-17
Abstract: 1,201,881. Exhaust hoods for drying machines. VALMET OY. 17 Feb., 1969 [19 Feb., 1968], No. 8414/69. Headings F4G and F4X. Moist air from the vicinity of multiple drum driers 1 is removed by a hood 2 comprising two longitudinal air removal ducts formed at corners made by the junction of the flat roof of the hood with each of two opposite longitudinal external walls and by oblique lateral walls 3 extending therebetween. Each duct is subdivided into sections 4a, (4c) and 4b, (4d), respectively, by transverse partitions and connected by transversal ducts (4aa), 46a, (4ca), 4da) placed side by side to the upper part of a common suction header 5. Each transversal duct has a louvre operable from outside the hood by a mechanism 8 to enable separate rates of air flow through each duct section. The oblique lateral walls 3 of each duct have openings therein to allow moist air from the driers to enter, which openings are adjustable in size by a mechanism 8 to adjust the distribution of air flow in the longitudinal direction of the drier.
Patent GB-943368-A (GB)
Title: A bracket for supporting shelves, racks and the like
IPC: E04H12/24
Filed: 1962-03-05
Abstract: 943,368. Brackets. E. W. BERGSTROM. March 5, 1962 [March 17, 1961], No. 8447/62. Heading A4B. A bracket for supporting shelves &c. comprises an arm 2 having a T-section end 10 received in one of the apertures 4 provided in a channel section bar 1 having on its side walls 7 inwardly directed beads 6, such that a hook-like projection 14 on the web of the end 10 engages behind the base wall 3 of the bar 1 and the flanges 12 of said end 10 fit closely between the base wall 3 and the beads 6 thereby to restrict transverse movement of the arm 2. A recess 16 in the web of the end 10 and slots 13 in the arm flange facilitate insertion of the arm 2 into the bar 1, the arm on assembly being pivoted upwardly and twisted from a position in which the flanges 12 are parallel to the side walls 7. The bar 1 is provided with side ribs 8 and screw holes 5 for wall fixing. Specification 812,919 is referred to.
Patent GB-251578-A (GB)
Title: A process for the production of iodised pyridine derivatives
IPC: C07D213/64
Filed: 1924-10-30
Abstract: 251,578. Binz, A., and Rõth, C. Oct. 30, 1924. Iodo-pyridines and their derivatives are obtained by diazotizing amino-pyridine compounds and reacting thereon with alkali iodide. The products possess bactericidal properties, particularly when electronegative groups such as chlorine and hydroxyl are present. Examples are given of the preparation of a-chloro-#<1>-iodopyridine from achloro-#<1>-aminopyridine and of a-oxy-#<1>-iodopyriline from alpha-oxy-#<1>-aminopyridine. a-Chloro-#<1>-aminopyridine is prepared by reduction of a-ohloro-#<1>-nitropyridine. a-Oxy-#<1>-aminopyridine results from the reduction of alpha-oxy-#<1>-nitropyridine.