baber/WOPTO huggingface dataset:
Patent GB-912401-A (GB)
Title: Polymers and procedures for making same
IPC: C08F130/08
Filed: 1959-03-10
Abstract: A linear homopolymer of a symmetrical 1,6-di-olefinically unsaturated monomer has six-membered rings linked to each other by intermediate methylene groups each of the methylene groups being attached to meta carbon atoms of the respectively adjacent six-membered rings and at least five of the members of each of the six-membered rings being carbon atoms.  Specified monomers are diallyl, dimethallyl, bis(2-chlorallyl), bis-(2-cyanoallyl) and bis(2-phenylallyl)ketones, 1-6-heptadiene-3-5-dione, 4-4-dimethyl-1-6-heptadiene-3-5-dione, 4-4-diethyl-1-6-heptadiene-3-5-dione, 1-6-heptadiene, 4-4-dimethyl-1-6-heptadiene, diallyl, dimethallyl, bis(2-chloroallyl), diallyl-dimethyl, diallyl-diethyl, diallyl-methyl-ethoxy, dimethallyl-dimethyl, bis(2-chloroallyl)-methyl-ethoxy silanes, diallyl-(m)ethyl phosphines, diallyl methyl phosphine oxide, dimethallyl-methyl phosphine, bis(2-chloroallyl) methyl phosphine, bis(2-cyanoallyl)ethyl phosphine oxide 3-3-diallyl diethyl malonate, 3-3-dimethallyl dimethyl malonate, 3-3-bis(2-chloroallyl)dibutyl malonate, 3-3-diallyl or dimethyl ethyl acetoacetate, 3-3-diacetyl-1-6-heptadiene, 3-5-divinyl heptane -2-6-dione, 4-6-divinyloctane 3,7-dione and symmetrical diallylic compounds where the two allylic groups are linked to a metallic atom such as selenium, titanium, arsenic, germanium, tin, lead or zinc.  The monomers may be polymerized in the presence of a catalyst such as hydrogen peroxide, barium peroxide, acetyl, and benzoyl peroxides, peracetic and perbenzoic acids, ammonium and potassium persulphate, tetralin and cumenehydroperoxides, azoisobistyronitrile, oxygen, or Ziegler type catalysts, e.g. titanium tetrachloride and beryllium dibutyl or chromium acetylacetonate and aluminium tributyl. Solvents, e.g. hydrocarbons, alcohols, ethers, ketones, esters and glycols may be used.
Patent GB-115522-A (GB)
Title: Improvements in Toothed Gearing.
Inventor: ZEITLIN JOSEPH
IPC: F16H1/22
Filed: 1917-06-09
Abstract: 115,522. Zeitlin, J. June 9, 1917. Toothed gearing.-Rotation is transmitted between two or more pinions by an internally toothed ring rotatably supported and engaging the pinions. Pinions d, e on shafts b, c are geared together by a loose ring f carried on ball or roller bearings in a fixed casing a. The casing may be flexibly supported by springs l, Fig. 6, adjusted by nuts r. The ring f may be supported on rollers mounted on eccentric bearings rotatable for adjustment. As shown in Fig. 8, shroudings p of pitch-circle diameter are secured to the pinions and to a third idle pinion, and the ring f bears upon the shroudings. The invention may be applied to gearing for interne-combustion engines of the kind described in Specifications 13811/13 and 18793/14, [both in Class 7 (ii), Internal-combustion engines, arrangement &c. of], in which case the pinion d rotates with the cylinders about the stationary a a sleeve d loose on the crank-pin and secured to the pinion c being rotated at half the speed of the rotating cylinders.
Patent GB-175204-A (GB)
Title: Improvements in smokers' ash trays
IPC: A24F19/14
Filed: 1921-03-16
Abstract: 175,204. Downey, J. r., and Universal Safety Ash Tray Co., Inc. March 16, 1921. Ash-trays.-Holes 14 are made in the tray to receive the lighted ends of cigarettes for the purpose of extinguishing them, and may be fitted with thimbles or flanged linings 15 of metal, glass, or non-combustible material.
Patent GB-512984-A (GB)
Title: Improvements in or relating to electrical control systems
IPC: G05D3/14
Filed: 1938-03-17
Abstract: 512,984. Resistance measurements. TAGLIABUE MFG. CO., C. J. March 17, 1938, No. 8286. Convention date, March 19, 1937. [Class 37] [Also in Groups XXXVIII and XL] In an automatically balanced Wheatstone Bridge system hunting about the balance point is prevented by restoring the current in the relay circuit which controls the balancing motor at two different rates, the rates being determined by a valve circuit having two fixed time constants, the larger of which is effective when the bridge is near its balanced condition. The bridge galvanometer 38 controls a photo-electric cell 61, the output of which is applied to the grid of a valve 68 to control the windings 69, 70 of the control relays 11, 12 of the balancing motor 112. Normally the relays 11, 12 are energized and de-energized respectively to maintain open the circuit of the motor but if due to movement of the galvanometer the light beam moves off the cell 61, relay 11 is released and the motor is operated to effect rebalancing of the bridge. During the balancing operation the anode current of the valve 68 varies at a rate determined by the constants of its circuits but when the balance point is approached and relay 11 is re-operated, a condenser 88 is switched into the grid circuit and the rate of increase of the anode current is gradually reduced. This introduces a relatively long time delay between the operation of the relay 11 and the possible operation of relay 12 to prevent reverse operation and hunting of the motor 112. The operations are similar when the galvanometer swings in the other direction to illuminate fully the cell 61 but in this case both relays are energized at first and then on approaching the balancing point relay 12 opens and condenser 88 is switched in to introduce a time delay for the operation of the relay 11. As soon as the bridge becomes out of balance a resistance 22 or 23 in the bridge circuit is introduced to provide an auxiliary E.M.F. for advancing the position of the light beam relatively to the instantaneous position of the balancing contact 41. The auxiliary E.M.F. opposes the sum of the back E.M.F. of the galvanometer, the E.M.F. generated in the galvanometer during the closing time of the relays and the. slide-wire drop of the bridge developed during over-run of the motor and ensures that the contact 41 moves into its new position without hunting.
Patent GB-1337516-A (GB)
Title: Mosaic printing head
IPC: B41J2/275
Filed: 1972-02-23
Abstract: 1337516 Selective printing W SCHNEIDER 23 Feb 1972 [4 March 1971] 8335/72 Heading B6F A mosaic printing head has printing needles 1 moved by pivoted armatures 3 of electromagnets 6. The electromagnets have a common yoke 4 formed of two concentric cylinders joined with a common bore, between which the magnet cores 5 are disposed and equidistantly spaced.
Patent GB-1175486-A (GB)
Title: Improvements in or relating to Dispenser Cathodes
IPC: H01J1/28
Filed: 1968-02-21
Abstract: 1,175,486. Cathode materials and processing. SIEMENS A.G. 21 Feb., 1968 [22 Feb., 1967; 27 Oct., 1967], No. 8338/68. Heading H1D. In a dispenser cathode in which a moisture insensitive alkaline earth metal carbonate charge is covered by a porous tungsten plate, both the inner and outer surfaces of the tungsten plate are covered with a layer of a metal of the platinum group or of rhenium. The metal coating may be of osmium, formed by the reduction of OsO 4 , which does not react with the Co 2  gas liberated during the charge decomposition. Further, the metal layer may be chosen such that, during operation, the escape energy at the surface in combination with barium is almost equal to that of barium with tungsten-such an arrangement will give emission which is not effected by any damage to the plate surfaces that may occur. Suitable metals are platinum, formed by reduction of, for example, PtC1 4 , or preferably rhenium, which, since the layer may be formed by deposition on to the surface, avoids the formation of any poisonous residues in the tungsten block.
Patent GB-609594-A (GB)
Title: Production of aliphatic acids
IPC: C25B3/23
Filed: 1946-03-18
Abstract: 609,594. Electrolytic production of aliphatic acids. BRITISH CELANESE, Ltd. March 18, 1946, No. 8343. Convention date, March 20, 1945. [Class 41] Aliphatic acids are produced by the electrolytic oxidation of unsaturated hydrocarbons containing an olefinic bond, the hydrocarbon being introduced into the cell in the vicinity of the anode. The electrolysis is carried out in an aqueous electrolyte preferably an aqueous solution of sulphuric acid and preferably in the presence of an oxidation catalyst, e.g. mercuric oxide silver nitrate or aluminium chloride. The anode, of any conductor which is inert in the process but preferably lead, is enclosed in a gas-tight compartment and is separated from the cathode which may also be of lead by a porous diaphragm; the electrolyte is stirred and maintained at a constant temperature, preferably 40 to 120 F. The unchanged hydrocarbon with other gaseous products can be drawn off so that the electrolysis may proceed as a batch process. A current density of 5 to 50 amps per sq. ft. with optimum results at 10 to 12 amps per sq. ft. may be employed and the hydrocarbon is preferably fed at a rate higher than the chemical equivalent of the current. A detailed example is given for the manufacture of propionic acid from propylene employing as anolyte 1000 parts by weight of a 5 per cent aqueous soltuion of sulphuric acid containing 2 parts by weight of mercuric oxide and as anolyte 5 per cent aqueous sulphuric acid. Propylene is introduced through a fitted glass diffusion disc below the electrolyte surface in the anode chamber. Unconverted propylene may be recovered from the gaseous products drawn-off from the anode and re-cycled. The metallic mercury plating out on the cathode can be redissolved by reversing the current and then transferring the liquid in the cathode compartment to the anode compartment.
Patent GB-447794-A (GB)
Title: Improvements relating to selective disconnecting boxes for electric cables
IPC: H02B1/00
Filed: 1935-03-18
Abstract: 447,794. Junction boxes. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and LEGGE, W. A., 15, Eldon Street, Glasgow. March 18, 1935, No. 8362. [Class 38 (i)] A junction box for selectively interconnecting four multicore cables, two of which enter the box at either end, comprises two rows of cable contacts arranged parallel to the run of the cables on either side of a double set of bus-bars arranged in nested fashion, each core being connected to a pair of contacts in the same row. The bus-bars 6 terminate in vertical portions projecting through insulators 14 to form contacts 9. The cable connectors 10 have U-shaped members 11 extending vertically through insulators 14 to form contacts 13 in line with the contacts 9 so that bridge connections may be made by fuses 26 or other links 25. The four cables may thus be connected together in pairs as desired, or all four may be connected together. The cable connectors 10 are of different length and are provided with sockets 23 projecting on either side to support the cores. A fifth core 28 of smaller cross-section is led to a cable connector 29 comprising a bent strip of metal which itself forms the pair of cable contacts. These contacts are located at the centre of the box.
Patent GB-601160-A (GB)
Title: Improvements in or relating to propellers, fans and the like
IPC: F04D29/38
Filed: 1945-04-05
Abstract: 601,160. Screw propellers. KENNETT, V. A. April 5, 1945, No. 8461. [Class 114] [Also in Group XXVI] A fan impeller or propeller has a number of blades each defined by a number of circular arcs 5, '6, 7, 9, and such that the axially projected area of all the blades approximates to a complete disc. The leading edge 9 of each blade is concave and the tip pointed. The blades are mainly flat with a slight concavity up to the leading cages. The complete impeller may be cut and pressed from one sheet of metal.
Patent GB-1470176-A (GB)
Title: Permanent magnet assemblies
IPC: H02K23/44
Filed: 1975-01-07
Abstract: 1470176 Permanent magnets DEFENCE SECRETARY OF STATE FOR 7 Jan 1975 [25 Feb 1974] 8502/74 Heading H1P [Also in Divisions H2] A motor stator, or alternator rotor comprises members of high coercivity generating magnetic flux which passes through the rotor or stator respectively, and also through high permeability, high saturation material which enhances the flux density experienced by the rotor or stator. In a commutator motor, two disc stators 5 are made from sectors of barium or strontium ferrite 7 alternated with sectors of soft iron 6. The sectors 7 are permently magnetized as indicated by arrows 8 in alternate directions. The two stators are aligned such that opposite sectors are oppositely polarized. The magnetic flux is thus concentrated through the planar faces of the soft iron sectors 6. In a modification (Figs. 3-4, not shown) extra permanently magnetized inserts are fixed at the outer ends of the sectors 6 to further reduce leakage around the disc circumference. The machine may be a generator, in which case the permanent magnet bodies 5 are fixed to a shaft which is rotated.
Patent GB-374948-A (GB)
Title: Improvements in or relating to electric couplings and the like
IPC: H01T13/05
Filed: 1931-03-19
Abstract: 374,948. Sparking-plugs. CARING- TON, C. M., Ladder Stile Cottage, Kingston Hill, Surrey. March 19, 1931, No. 8505. [Class 7 (iv).] A screened connection to a ball-headed sparking plug is made by means of a metal casing built up of parts 18, 19, 20 attached to the metal braiding 24 of the cable by washers 25, 26 and a nut 27 and sprung on to the plug 13 by means of a slit skirt 43. The parts 19, 20 form an enlarged boss at their adjacent ends which is enclosed by the part 18, the edge 21 of the latter being flanged over to secure the parts together. The casing encloses a body of insulating material 23 within which are mounted a pair of cup-shaped contacts 34, 39 that grip the ball terminal 17 on the plug. The contact 34 passes through a partition 35 and screws into the cable and 31. The contact 39 is carried by a loose rod 37 of insulation held in place by a screw cap or by a clip 42 engaging a metal plate 40 on the rod 37. The nut 27 is locked by a spring arm 29 on a plate 30 that covers the joint between the parts 19, 20 and is secured by the flange 21.
Patent GB-375378-A (GB)
Title: Improvements in pottery drying boards
IPC: F26B25/18
Filed: 1931-03-20
Abstract: 375,378. Mats &c. CADMAN & CO., Ltd., J., Boughey Road, Stoke-on-Trent, and PROCTOR, C. F., 18, George Street, Chesterton, Staffordshire. March 20, 1931, No. 8577. [Class 142 (iv).] A pottery drying-board for draining articles after dipping in glaze comprises longitudinal strips b of wood &c. bevelled at bl and set apart by distance pieces c arranged at intervals, the strips and distance pieces being secured by rivets d. Specification 12649/00, [Class 142,Weaving &c.], is referred to.
Patent GB-583905-A (GB)
Title: Improvements in or relating to the electrical heating of workpieces
IPC: H05B3/00
Filed: 1944-05-05
Abstract: 583,905. Heating metals by passage of current. OMES, Ltd., and MORA, G. May 5, 1944, No. 8577. [Class 39 (iii)] In heating wire, steel bars and the like in long lengths by pass-' age of current through them, the workpiece 19 forming part of the secondary circuit of a transformer, several transformers 22a, 22b are employed with their secondaries 12a, 12b connected together in series and to terminal blocks 13a, 13b in alignment with and parallel to the workpiece, an electrode 15 on each outermost terminal block engaging the workpiece. The transformers may be moved together or apart and the two innermost terminal blocks may be connected by a flexible connection 21 or they may be separately connected to the workpiece. The transformer secondaries comprise single turns of laminated copper leaves connected to grooved terminal blocks 13a in which slide the electrodes 15 with jaws closed on the workpiece by hydraulic rams. The terminal blocks are close to the workpiece to reduce losses due to magnetic leakage. The workpiece may be supported intermediately by insulated supports. According to the Provisional Specification, a single transformer may be used and may beat two long parallel rods, one pair of adjacent ends being connected to the secondary, the rods being connected by a conductor at the other ends so that current passes through the rods in series. Specifications 476,872 and 568,110 are referred to.
Patent GB-1087541-A (GB)
Title: Improvements in or relating to moulding compositions
Inventor: DYE PETER ARTHUR
IPC: C08L61/10
Filed: 1964-02-29
Abstract: A moulding composition consists of sand coated with an acid-catalysed thermosetting resin and a curing agent therefor comprising a compound of the formula (R1O)(R2O)POX where R1 and R2 are alkyl aryl or alicyclic radicals or halogen or hydroxy substitution products thereof and X is either chlorine or bromine.  The resin may be a phenol-formaldehyde, a furfurylated phenol-formaldehyde or a furfurylated urea-formaldehyde resin, preferably used in an amount in excess of that of the phosphochloridate or phosphobromidate.  The preferred curing agents are the diphenyl phosphochloridates, e.g. bis - octylphenyl-phosphochloridate. A further curing agent or hardener such as paratoluenesulphonic acid or an ester thereof may be used.
Patent GB-396490-A (GB)
Title: Improvements in and relating to the production of spot carbon papers
IPC: B41L1/00
Filed: 1932-03-23
Abstract: 396,490. Printing-apparatus ; carbon papers. RUTKOSKIE, G. A., 166, Morris Avenue, Athens, Ohio, U.S.A. March 23, 1932, No. 8702. [Classes 100 (ii) and 100 (iv).] For producing paper sheets having carbon transfer composition in predetermined areas thereon, a printing-press, having a lock-up base 2 mounted on the type-bed of the press, to which is secured the printing plate or plates 47, is used, in combination with an ink fountain containing wax carbon compound, means being provided to maintain the fountain, inking- rollers, and the lock-up base at predetermined temperatures. All the inking-rollers are given a positive drive. The printing-plate is inked by the rollers shown in the open position in Fig. 2, ink being carried from the fountain 13 by the ink-fountain roller 16 and the ductor roller 18 to the steel vibrator roller 17, which distributes it to the forme rollers 19, 20 and thence to the ink plate 10 and printing-plate 47. Electric heating elements 3, 11 are provided in the lock-up base and ink plate, and the rollers 17 .. 21, 21<1> are maintained at the required temperature by heating elements 22, 26, mounted adjacent thereto. The ink fountain is heated bv a similar element 14 and the temperature of the various parts is controlled by suitable switches 12, 15, 23, 28, permitting low, medium, or high temperatures, the electric circuit being completed by brushes which engage insulated conductors 4 attached to and reciprocating with the type-bed. A rack on the bed drives the gear 33 of the roller 21, which is in mesh with gears 34, 35 on the forme rollers and also with a gear 33<1> on the rubber rider roller 21<1>, which in turn engages the gear 32 on the vibrator 17. A gear 38 is provided on the ductor roller 18 which engages alternately with gears 37, 39 on the fountain roller 16 and vibrator roller 17 respectively, the gear 37 being driven by cam and ratchet in known manner. The teeth of the gears 37, 38, 39 are pointed so as to ensure engagement as the ductor roller 18 travels between the rollers 16, 17, and the gear 39 is splined on the vibrator roller 17, a coil spring 40 being provided to ensure that the gears 39, 38 are always in the same plane. The heating element 26 is provided with a shield 43 which extends at the bottom to form a drip-pan, and an extension 46 forms a drip-pan for the fountain 13. Tubes 45 drain away the ink. The plate 47, which is preferably nickelled and polished, is held in position by adjustable clamps 48 and screws 49 which engage in holes drilled at intervals in the' lock-up base, and the impression cylinder is provided with a soft felt covering.
Patent GB-457724-A (GB)
Title: Improvements relating to powder blowers and cartridges therefor
IPC: B05B11/06
Filed: 1936-03-24
Abstract: 457,724. Powder blowers. STANCO, Inc., Linden, New Jersey, U.S.A. March 24, 1936, No. 8761. Convention date, July 20, 1935. [Class 18] A powder-containing casing 1 for use with powder blowers is closed at one end by a disc 2 provided with a discharge aperture and at the other end by a felt or ceramic, &c. disc 4 which is pervious to air but' not to powder. A blower is constituted by such a cartridge in telescopic engagement with an air-compressing member 6 the open end of which is closed by a metal disc 7 crimped in position. The closure 2 is a metal disc crimped into position, and the discharge aperture therein may be only partially punched, or may be formed in a depression filled with wax, rubber cement, &c. which is pierced when the blower is first used, or the aperture may be closed by a sealing disc of frangible material. The disc 4 which is glued to the casing may be cup-shaped and inset into the casing and it may be secured in position by a cup-shaped metal ring. The device is made from metal, or moisture-proofed strawboard, &c. Specification 456,794 is referred to.
Patent GB-734316-A (GB)
Title: Improvements relating to apparatus for the regulation of the voltage across a common load circuit supplied from two or more sources of direct current
IPC: H02J1/10
Filed: 1953-03-31
Abstract: 734,316. Automatic voltage-control systems. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and MARTIN, R. G. Jan. 4, 1954 [March 31, 1953], No. 8842/53. Class 38 (4). In order to effect load sharing between two or more individually controlled D.C. sources supplying a common load, currents proportional to the individual load currents are passed through resistance bridges which are so connected that when the currents are equal, the bridge outputs are zero; output signals due to inequality being correctively applied to the individual regulators. As applied to two regulated rectifier arrangements of the kind described in Specification 677,673, the controlsignal applied to each of the regulators 4, 41 consists of a portion of the D.C. output Voltage tapped off the common bus-bars 2, 3, via potential dividers 11, 11<SP>1</SP>, plus the voltages (if any) developed across diagonals AB, A<SP>1</SP>B<SP>1</SP> of the resistance brides 1, 1<SP>1</SP>. Current transformers 9, 9<SP>1</SP> and rectifiers 8, 81 are connected across, diagonals CD, C<SP>1</SP>D<SP>1</SP> of the bridges and pass currents I, I 2 . Points A, A<SP>1</SP> are linked. Hence equal currents produce no voltage across AB, A<SP>1</SP>B<SP>1</SP> whilst unequal currents produce a voltage of one polarity across one bridge and of opposite polarity across the other. Chokes 13, 131 and condensers 14, 141 eliminate ripple. In a modification, Fig. 3 (not shown), the bridges are connected to the lower ends of the potentiometers instead of the upper.
Patent GB-526561-A (GB)
Title: Improvements in fish slices also applicable to other hand implements such as trowels
IPC: A47G21/02
Filed: 1939-03-20
Abstract: 526,561. Fish slices. PLATERS & STAMPERS, Ltd. (Katzinger Co., E.). March 20, 1939, No. 8855. [Class 28 (ii)] [Also in Group XXIII] A fish slice, trowel &c. has the handle formed of wire bent to form arms 5, 6 resiliently connected by a spring part 4, the end of the arm 5 being bent downwardly at 5<SP>1</SP> and forwardly to provide a pivot 7 engaged in a hole in an upward extension 8 on the slice &c. 1 and the end of the arm 6 being bent to form a hook 9 engaging holes in a bent up lug 10 and in the part 8 so that when the arms 5, 6 are gripped together the slice &c. rotates about the pivot 7 until arm 6 contacts with vertical part 5<SP>1</SP> of arm 5, the return movement of the slice &c. when the grip on the arm 5, 6 is released being limited bv a shoulder 11 on the extension 8. In a modification, Fig. 10, the bent part of the arm 19 is bent forward forming a stud 25 received in a bearing 23 formed in a, plate 21 secured by bent over lugs 22 to a rearward extension 16 of the slice &c. 14, the extreme end 26 being bent laterally forming a stop. In a further modification, Fig. 11, both ends of the arms 18, 19 are received in bearings 23, 30 formed in a plate 21 secured by bent lugs 29 to the rearward extension 16.