baber/WOPTO huggingface dataset:
Patent GB-173429-A (GB)
Title: Improvements in the manufacture of bobbins for use in the textile trades
IPC: B65H75/14
Filed: 1920-12-29
Abstract: 173,429. Forshaw, J. Dec. 29, 1920. Bobbins.-Wooden bobbins for use in the textile trades consist of a central barrel 2, Fig. 1, with its ends 1 shouldered down slightly and end discs 3, the apertures in which are countersunk as shown at 5, which countersink may extend the whole depth of the disc. The discs 3 are positioned on the shouldered ends 1 of the barrel 2 and glued, and the barrel ends are then expanded by a tool 6, Fig. 5. The annular tapered groove so formed is filled with glue or other adhesive. An alternative method of fixing the end discs is to drive a tapered wedge 9, Figs. 8 and 10, into the ends of the barrel, thus expanding the wood to fill the countersink. The tail 10 prevents relative rotation of the disc on the barrel. Figs. 11 and 12 shows another method in whih the disc 3 is bored out slightly larger for a certain depth, and expansion of the barrel 2 is obtained by the insertion of a ring 12. The rings 9, 12 may be corrugated, and may have serrated edges.
Patent GB-915945-A (GB)
Title: Means for effecting rotation of a worm wheel or worm wheel segment
Inventor: LEACH EDWARD BLACKWELL
IPC: F15B15/02
Filed: 1959-10-27
Abstract: 915,945. Toothed gearing; step-by-step mechanism; linkwork. AUDCO Ltd. Oct. 14, 1960 [Oct. 27, 1959], No. 36346/59. Classes 80 (1) and 80 (3). [Also in Group XXIX] A toothed wheel or segment 11, Fig. 1, in a rotary plug valve 10 is engaged by a worm 12 which is either moved axially to act as a rack, by an hydraulic or pneumatic piston 15, or is rotated through a splined sleeve 18 by a separate fluid device such as an hydraulic or pneumatic motor 20. As shown in Fig. 1, the piston 15 and motor 20 are automatically supplied alternately with fluid from a reservoir connection 23 by a hand or power-operated gear pump 21 so that the worm is alternately moved axially forward (to rotate wheel 11) and rotated idly back (with wheel 11 stationary) the wheel 11 being thus rotated step-by-step in a direction corresponding to the direction of rotation of the pump input shaft 22. The fluid connections between pump 21, piston 15, motor 20 and a reservoir connection 42 are controlled by a valve 32 linked to a forked lever 43 actuated by a snap-over rocker 35 hava lost-motion connection 38 with the worm-shaft. Safety cut-out switches 28, 29 controlling the pump 21 prevent the development of excessive pressures in its two output conduits. In a modification, Fig. 2 (not shown), the fluid connections are controlled by a fluid-operated valve similar to the mechanically-operated valve 32, the worm-shaft then having a lost motion connection with a further valve controlling the fluid-operated valve. In another construction rotation in one or other direction of the input shaft 62, Fig. 3, of a gear pump coupling 61, comprising an input gear 63 engaging two gears mounted in a housing 65 on an output shaft 60 normally causes rotation of the output shaft 60, and hence rotation of the worm 12 to drive the wheel 11. The coupling 61 can, however, also act as a pump having output lines 72 or 73 according to the direction of rotation of its input shaft, a valve 67 connecting the suction side of the pump to a reservoir line 71. If resistance to rotation of the worm 12 is high, the coupling 61 develops a high fluid-pressure which acts through controlvalves 77 and return-valves 79 to move a piston 15 and hence cause axial movement of the worm 12 to rotate the wheel 11, the fluid operation being similar to that causing axial and rotary movement of the nut in Specification 912,759.
Patent GB-878188-A (GB)
Title: Cement mixing machine
IPC: B01F7/16
Filed: 1958-11-13
Abstract: 878,188. Concrete mixers. FEJMERT, E. V. Nov. 13, 1958, No. 36487/58. Class 86 In a concrete mixer of the type having a stationary longitudal annular tank in which mixing blades trace a circular path about a central vertical axis, the blades 3-7 are secured to plates each carried by a pivoted arm 8 and are urged against the tank bottom by a flat spring 10 the pressure of which is adjustable by a screw 12. A second adjusting screw 11 determines the minimum clearance between the mixing blades and the bottom of the tank. The blades and plates having elongated bolt holes whereby the blades can be adjusted relative to the plates. The mixing blades are arranged to move at a minimum speed of 2 metres per second round the tank and are set at an angle to the vertical so that the material is thrown upwards and to the rear in relation to the fast moving blade. The blades are also set at an angle to the direction of rotation so that each blade directs the material into the furrow formed by the blade ahead.
Patent GB-619463-A (GB)
Title: A new or improved method of and means for straightening metal wire or rod
IPC: B21F1/02
Filed: 1946-12-12
Abstract: 619,463. Straightening. TAPLIN, H. J. Dec. 12, 1946, No. 36664. [Class 83 (iv)] Apparatus for straightening wire of non- circular cross-section comprises sets of cooperating rolls mounted to rotate about axes at right angles to the line of travel of the wire in a carrier having an oscillatory or gyratory motion in a plane at right angles to the line of travel. The carrier 21 carries rollers 34 adjustable on a frame 23 by screws 36 to form a gap of the same shape as the wire. The frame is mounted on adjustable eccentrics 26 on shafts rotated by chains 31 from a shaft 16 and moves with a gyratory motion. The wire is fed alternately through fixed rollers and gyrated rollers to effect straightening. For straightening wire of D-section one roll may have a flat surface and one a grooved surface.
Patent GB-761960-A (GB)
Title: Improvements in and relating to pipe fittings
Inventor: WEBB MICHAEL
IPC: F16L23/024
Filed: 1954-12-20
Abstract: 761,960. Clamps. GENERAL DESCALING CO., Ltd. Dec. 20, 1954, No. 36813/54. Class 44. [Also in Group XXVIII] Means for securing a fitting to a pipe comprises the combination with' a clamp element adapted to surround the pipe and having a fixing clamp or screw, by which when in position, it can be fixedly held thereto, of an associated ring element, each of the elements having two or more correspondingly spaced holes to receive fixing bolts for securing a fitting thereto, in which the holes in the ring element are elongated to permit of relative movement of the elements on tightening the fixing screw and in which the ring element is provided with a seating face adapted to locate a resilient sealing ring, the other seating face for which is provided on the fitting. As shown, a pipe clamp and coupling comprises a U-shaped strap 1, the two side elements 2 of which are united by a bridge-piece 3 carrying a boss 4 for a clamping screw 6 operating a clamping jaw 9. Lugs 12 integral with the strap 1 and arranged preferably at 120 degrees to one another are provided with holes 13 for bolts 16 by which a ring element 20 of a size to fit over the pipe, is secured to the clamp. The element 20 is provided with a chambered face 28 for a sealing ring to provide a fluid-tight joint between a pipe and a fitting (see Group XXVIII), which is attached to the pipe by means of the bolts 16. The clamping jaw 9 which is required to make electrical contact with the pipe may be of brass and is provided with a socket 11 for an electrical connection. Specification 756,037, [Group XXXVI], is referred to.
Patent GB-967543-A (GB)
Title: Improvements in wave reduction,de-icing and destratification methods and apparatus
Inventor: LAWRIE ALEC HIBBURD
IPC: E02B1/00
Filed: 1959-10-30
Abstract: 967,543. Agitating liquids. AERO-HYDRAULICS Ltd. Oct. 25, 1960 [Oct. 30, 1959], No. 36867/59. Addition to 805,789. Heading B1C. [Also in Divisions B7, E1 and Fl] An apparatus for destratifying reservoirs and other bodies of liquid comprises an open ended tube 1 secured at its lower end to a distributer 12, which is an ejector as in the parent Specification for emitting large bubbles into the tube when fed by compressed air or gas via a conduit 16. Ports 17 in the wall of the tube permit the liquid to be entrained by the bubbles, which acting like pistons in the tube 1, lift the liquid during their ascent up the tube to discharge it in a highly turbulent state at or near the surface. The lower end of the tube may be connected to a sinker 2 on the bed 8 of the liquid, and the upper end may be provided with a buoyant cone 20.
Patent GB-627407-A (GB)
Title: Improvements in or relating to transceivers
IPC: H04B1/54
Filed: 1946-12-16
Abstract: 627,407. Automatic frequency control systems. PHILIPS LAMPS, Ltd. Dec. 16, 1946, No. 36997. Convention date, Jan. 5, 1944. [Class 38 (iv)] [Also. in Group XL (c)] In a transmitter-receiver in which the transmitter frequency is automatically synchronized with the receiver tuning by a frequency discriminator immediately upon changing from reception to transmission the transmitter frequency is temporarily varied to ensure it reaching within the control range of the discriminator. Unless the transmitter frequency lies within the range corresponding to two tuning capacities C3 and C9, Fig. 1 (not shown), the discriminator control is not effective, but if once brought within this range the control is operative up to frequencies corresponding to two other capacities C5 or Cll. Fig. 2 shows a transceiver with aerial 13 alternatively connectible to the transmitter output 17 or receiver input 18, the transmitter frequency being controlled during transmission by a discriminator D responsive to the intermediate frequency produced between the receiver local oscillator 20 and the transmitted frequency fed through a condenser 26, and producing a D.C. control voltage on a reactance valve 16 controlling the transmitter frequency. On changing from reception to transmission, a switch 31 ganged to the transceiver switch is closed so that a condenser 32 is charged by a battery 33 and a positive and a negative impulse successively produced in the reactance valve lead 30 by a transformer 35. The secondary may be shunted by a condenser 36 to produce damped oscillations. Alternatively, if a unilateral error in the transmitted frequency is normal, a coil to which a current impulse is applied may be used in the lead 30. Alternatively, in Fig. 3 (not shown), during reception (position O of switches 38, 39), the condenser 40 is charged by batteries 43, 44 to a negative voltage - 2Vg applied to the lead 30 and an auxiliary condenser 45 to a value +2Vg. On changing to transmission (position Z of switches 38, 39) the voltage +2Vg of condenser 45, shunted by a resistance 42, is applied to the line 30 in series witli a battery voltage - Vg. A final voltage - Vg on the reactance valve grid therefore results, but depending on the capacities of condensers 40, 45 a voltage between - Vg and zero, or even positive, is temporarily applied to the line 30. The systems are particularly applicable to F.M. transmitters. Mechanical frequency varying means, e.g. a condenser with a flexibly suspended electrode, is also referred to.
Patent GB-917083-A (GB)
Title: New polymeric compositions
Inventor: WHITELEY KENNETH STEPHENSON
IPC: C08L27/06
Filed: 1960-10-27
Abstract: A polymer composition comprises from 98 to 60% by weight of a polyvinyl chloride and from 2 to 4% by weight of a solid product obtained by polymerizing ethylene together with a monoethylenically unsaturated compound represented by the formula <FORM:0917083/IV(a)/1> where X may be hydrogen or an alkyl group and R is an aromatic or aliphatic hydrocarbon radical with from 1 to 8 carbon atoms to give a polymerization product which contains from 7 to 95% by weight of units of the monoethylenically unsaturated compound. The polyvinyl chloride may be a homopolymer of vinyl chloride or a copolymer of vinyl chloride with up to 20% of another copolymerizable monomer.  Compounds which may be copolymerized with ethylene include vinyl acetate, vinyl propionate, vinyl benzoate and isopropenyl acetate.  A third polymerizable monomer selected from the class consisting of monoethylenically unsaturated hydrocarbons other than ethylene or from the class consisting of monoethylenically unsaturated polar vinylidene compounds may be incorporated in the polymerization.  The polymeric material is blended with polyvinyl chloride, e.g. by mixing in a Banbury mixer or blending on a two-roll mill. Antioxidants, fillers, lubricants, pigments and other usual additional ingredients, e.g. further polymeric materials may be added during blending which is preferably carried out at 160 DEG  to 180 DEG C.  Preferably the polyvinyl chloride is gelled first and then blended with the copolymer.  Specification 703,252 is referred to.
Patent GB-1435209-A (GB)
Title: Gearboxes for motor vehicles with all-wheel drive
IPC: F16H48/30
Filed: 1973-08-06
Abstract: 1435209 Change speed gear ZAHNRADFABRIK FRIEDRICHSHAFEN AG 6 Aug 1973 [8 Aug 1972] 37265/73 Heading F2D In a differential drive to front and rear axle drive shafts 37, 38 of a motor vehicle, wherein the differential 30 is driven through a main countershaft-type transmission 10, followed in series by a direct-reduced auxiliary sun-ring planetary gear 20, the auxiliary gear drives the differential 30 through a toothed wheel 31, arranged between the main and auxiliary transmissions 10, 20, and fixed to the output planet carrier 23, of the auxiliary gear 20, the input sun 24 of which is directly secured to the output shaft 11 of the main gear 10. The ring gear 22 can, by a synchromeshed dog clutch sleeve 27, be clutched to an output shaft 23a for direct drive, or be held for reduced drive. The wheel 31, which drives the differential 30 through an idler 28, is secured to the output planet carrier 23 of the auxiliary gear, together with a support disc 23b, by electron beam welding, or by bolts (Fig. 2, not shown). The differential gear 30 comprises a planet carrier 32, with external gear teeth driven by the idler 28, and a sun 35 and ring gear 33 secured respectively to the front and rear axle drive shafts 37, 38. A differential lock sleeve 36 is actuated by a piston motor 44.
Patent GB-1331351-A (GB)
Title: Paster anticipate circuits
IPC: B65H19/18
Filed: 1971-08-10
Abstract: 1331351 Joining webs NORTH AMERICAN ROCKWELL CORP 10 Aug 1971 [12 Oct 1970] 37545/71 Heading B8R In the splicing and web-roll charging apparatus described in Specification 1,076,196 the control system is modified by the addition of a circuit which is arranged to produce a control signal a fixed time in advance of the automatic initiation of the preliminary operations associated with the splicing process, so that other preliminary activities such as loading a standby roll on to the reel stand can be completed before the preliminary operations begin.
Patent GB-955108-A (GB)
Title: Production of a titanium trichloride
IPC: C08F10/00
Filed: 1960-11-02
Abstract: A modified catalytically active form of titanium trichloride which may be used in the polymerization of a -olefines (see Division C3), is produced by subjecting dry a -, b - or g -titanium trichloride particles to high-frequency impact grinding, the frequency of impact being at least 1800 impacts per minute, preferably at least 8000. Such treatment can produce a titanium trichloride having an average particle size of less than 1 micron in diameter.  Any device capable of causing a grinding force to impinge on the titanium trichloride particles at high frequency may be used, high-speed vibratory grinders, hammer and impact mills, and the grinding time is usually for 3 to 20 minutes.  In the examples a -, b - or g -titanium trichloride is pretreated for 10 minutes in a dry inert atmosphere by subjecting the particles to the high-frequency impact of two steel balls in a cylinder of a vibratory grinder.  The b -titanium trichloride may be obtained by reducing titanium tetrachloride with aluminium trimethyl and subsequently decomposing the resultant methyltitanium trichloride in an inert hydrocarbon diluent.  g -titanium trichloride is obtained by heating the b -form at 250 DEG to 300 DEG  C. for 2 to 3 hours.ALSO:Polymerized a -olefines having a high content of stereospecific polymer are produced using a catalyst comprising a dispersion in an inert diluent of a modified catalytically active form of titanium trichloride (see Division C1) and an organometallic compound in the presence of an inert atmosphere.  The modified titanium trichloride is obtained by subjecting dry a , b  or g -titanium trichloride particles to high frequency impact grinding, the frequency of impact being at least 1,800 impacts per minute.  The a -olefines mentioned are aliphatic a -olefines containing 2 to 8 carbon atoms and aryl olefines such as styrene. Organometallic compounds mentioned are zinc, antimony or beryllium alkyls, and compounds AlRR1R11 where R is an alkyl group and R1 and R11 are alkyl groups or halogen atoms and R, R1 and R11 may be the same or different.  The catalyst may include optional additives such as alcohols, amines, organic acids, chlorinated organic compounds, simple inorganic salts and organometallic compounds of Group II and III metals. In the examples (a) propylene is polymerized, the inert diluent being hexane and the organo-metallic compound triethyl aluminium and the polymer is isolated by treatment with isopropanol, filtering and washing with methanol; (b) styrene is polymerized the inert diluent being benzene and the organometallic compound triethylaluminium and the polymer is isolated and purified by using acetone, methanol, aqueous HCl, followed by washing and extraction with methylethyl ketone.
Patent GB-1065882-A (GB)
Title: Improvements in and relating to gas ionisers
IPC: H05H3/06
Filed: 1963-09-25
Abstract: 1,065,882. Discharge tubes. G. W. McCLURE. Sept. 25, 1963 [Oct. 8, 1962], No. 37670/63. Heading H1D. A tube for ionising a gas at low pressure without the use of a magnetic field includes an elongated electrode disposed coaxially within a tubular electrode, and means-such as the closure of the ends of the tubular electrode, or the provision of an auxiliary electrode spaced therefrom-for retaining electrons within the space defined by the two electrodes, the tubular electrode and the gas pressure in use being such that the ionization mean free path of 100 electron-volt electrons in the gas is greater than the, or the maximum, inside diameter of the tubular electrode. It is shown that an electron generated in the space between the electrodes, and having an initial velocity directed within a certain angular range with respect to the diametral plane in which the electron is disposed, will-until suitably deflected by an ionizing collision-be trapped in an orbit which inter-- sects neither electrode, whereby a self-sustaining discharge at very low pressures may be obtained. Application to high vacuum pumps employing cathode sputtering, to vacuum gauges, ion sources, and ionic propulsion engines is referred to, and ranges of values for the ratio of the diameters of the two electrodes and for the end aperture sizes providing optimum ionization at various gas pressures are discussed. The ion source in a neutron generator (Fig. 1, not shown) includes a low-pressure deuterium filling which is ionised by a potential difference applied between the tubular cathode (12) and axial anode (10), ions passing out through the end grid (13) to be accelerated on to, and to liberate neutrons from, the tritium loaded target electrode (15). Other deuterium/ tritium combinations for the filling and target may be employed; the ends of the inter-electrode space may be closed to the extent required to retain electrons therein by necking down the ends of the tubular electrode, rather than by the use of a grid (such as 13); the apparatus may be pulse-operated; and the outer and inner electrodes may be connected as anode and cathode, respectively, although this entails the use of higher starting voltages and gas pressures.
Patent GB-859728-A (GB)
Title: Adhesive for polythene and method of using same
IPC: C09J123/22
Filed: 1958-11-24
Abstract: An adhesive composition comprises; a polyisobutylene; a tertiary amine; a polyethylene glycol; a condensation product formed by condensation of a hydroxy containing polyester with less than a stoichiometrically equivalent amount of an organic polyisocyanate; and an organic polyisocyanate in an amount stoichiometrically equivalent to the amount of polyethylene glycol together with the free hydroxy content of the condensation product.  The average molecular weight of the polyisobutylene is preferably between 80,000 and 200,000 and that of the polyethylene glycol between 1,000 and 5,000.  As solvents for the adhesive trichlorethylene is preferred, though other chlorinated solvents with or without the addition of esters, ketones or aromatic hydrocarbons may be used.  The adhesives are suitable for affixing polyethene sheets which have been surface treated by: the electrical treatment described in Specification 715,814; or by BETA-rays, or ultraviolet rays; or by exposure to halogens, a mixture of carbon dioxide and hydrogen chloride, ozone, or oxidising agents such as permanganates or chromium trioxide together or to metal, wood or glass surfaces (see Groups VIII and XVII) in examples the polyisobutylene has a molecular weight of 100,000; the tertiary amine is N-methyl morpholine; the polyethylene glycol has an average molecular weight of 3,000; the organic polyisocyanate polyester condensation product is prepared from 2, 4-toluene diisocyanate and a polyester from diethylene glycol, hexane triol and adipic acid; and the organic polyisocyanate is p, p1, p11-trisocyanates triphenyl methane.  Specification 684,400 also is referred to.
Patent GB-1142743-A (GB)
Title: Improvements in and relating to urinals
Inventor: COLTMAN LEONARD
IPC: E03D13/00
Filed: 1966-08-25
Abstract: 1,142,743. Moulding urinals. COLTMAN PLASTICS Ltd. 21 Nov., 1967 [25 Aug., 1966], No. 38171/66. Heading B5A. [Also in Division A4] A urinal stall comprising a back provided with a moulded sparge channel adapted to direct flushing water against the back, the channel extending laterally across the back from one end to other between end sections of the stall. The stall is made of glass fibre mat impregnated with polyester resin by a lay-up process using a mould of complementary shape. In a prefered embodiment the stall comprises back sheet 1 with a moulded sparge channel 2 at the top which extends laterally between end sections 3 and 4. Holes are drilled in the sparge channel which are directed towards the back 1 of the stall. The discharge trough 7 is integrally formed with back 1. The sparge channel is provided with a riser pipe 15 (Fig. 2 referred) connected with a flushing tank 16.
Patent GB-1074210-A (GB)
Title: Process for isolation of 3ª‰-hydroxy-14ª‰ú¼15ª‰-epoxy-5ª‰-bufa-20,22-dienolide
Inventor: KOMATSU MANKE
IPC: C07J71/00
Filed: 1964-09-18
Abstract: 3b  - Hydroxy - 14b ,15b  - epoxy - 5b  - bufa-20,22-dienolide is isolated from Senso in a process which comprises (a) liquefying a dried Senso with water or an aqueous solution of hydrolytic enzyme; (b) extracting crude intermediate extracts from liquefied Senso with a hydrocarbon organic solvent; (c) chromatographically separating the resulting extracts by eluting the 3b  - hydroxy - 14b ,15b  - epoxy-5b  - bufa - 20,22 - dienolide fraction using the same solvent as the extraction solvent; (d) crystallizing the eluate part from acetone or acetone-water; (e) recrystallizing to obtain the purified objective material from acetone or acetone water.  As the enzyme there may be used pepsin, diastase or an acid stable proteolytic and amylolytic enzyme produced by a strain of the type Aspergillus oryzae TPR 18. As the hydrocarbon organic solvent there may be used trichloroethylene, chloroform, xylene, benzene, toluene and mixtures thereof.