baber/WOPTO huggingface dataset:
Patent GB-1058104-A (GB)
Title: Process for the manufacture of 19-nor-steroid enol ethers
IPC: A61K31/57
Filed: 1964-07-13
Abstract: D 3,5-3-Enol ethers of D 4-3-oxo-19-nor-steroids are prepared by reacting D 5(10)-3-oxo-19-nor-steroids with an etherifying agent in the presence of an acidic catalyst. The etherifying agent is, for example, an ester of ortho-carbonic, ortho-silicic or ortho-formic acid, particularly an alkyl orthoformate, and the catalyst is, for example, a mineral acid, an organic sulphonic acid or a salt of a mineral acid with an organic nitrogen base. The reaction is preferably effected in a solvent or diluent at 50 DEG  to 100 DEG C., and the reaction mixture is desirably neutralized and/or cooled immediately after the conversion has taken place, to prevent resplitting of the enol ether. The starting material may be of the cholane, cholestane, spirostane or cardanolide series, or, preferably, of the pregnane or androstane series, and may contain substituents such a alkyl groups, halogen atoms, free, esterified or etherified hydroxyl groups, free or ketalized oxo groups, oxido groups and/or double bonds in the steroid nucleus or the side-chain. Examples describe the preparation of D 3,5-3-ethoxy-17-oxo-19-nor-androstadiene and D 3,5-3-ethoxy-20-oxo-19-nor-pregnene.
Patent GB-830180-A (GB)
Title: Roof light for buildings
Inventor: PAYNE HAROLD JAMES WILLIAM
IPC: E04D13/03
Filed: 1956-09-21
Abstract: 830,180. Roof lights. ROBERTSON THAIN Ltd. Sept. 9, 1957 [Sept. 21, 1956], No. 29002/56. Class 20(3) A roof light for a building comprises a rectangular frame 1 formed of sheet metal members 2 which are bracketed together at the corners and are folded along their lower edges to form inner and outer flanges 3, 4, two panes of glass, not shown, being supported on the flange 3 and the flanges of an inverted T-shaped member 5 which is bracketed to the end members 2 and is supported on the end flanges 3. An outer frame 7 supporting a transparent cover 13 is telescopically received over the upper part of the frame 1 and is secured by bolts and nuts 14, the bolts passing through corresponding slots 15 in the inner and outer frames 1, 7. The sides 8 and shaped end plates 11 of the outer frame 7 have outwardly bent lower flanges 9, 12 respectively, inwardly directed flanges 10 being provided along the top of the sides 8. In fitting the roof light to a flat roof the flanges 4 of the inner frame 1 are located under the outer surface, e.g. corrugated iron sheets, the outer flanges 9, 12 of the outer frame 7 being adjusted to rest upon an outer overlying water-proof layer e.g. of bituminuous nature. The joints between the flanges 9, 12 and the upper water-proof layer are sealed, e.g. with bitumen.
Patent GB-508675-A (GB)
Title: Process for the treatment of liquids containing suspended particles with sound and ultra-sound waves
IPC: B01F11/02
Filed: 1937-10-25
Abstract: 5 0 8 , 6 7 5 . Precipitating; treating liquids with sound waves. HIEDEMANN, E., and BRANDT, O. Oct. 25, 1937, No. 29112. Convention date, Oct. 24, 1936. [Class 1 (i)] Liquids are clarified by treatment with sound waves of frequency 8-100 K.Hz transmitted longitudinally through an elongated chamber a of such dimensions that cavitation effects are negligible. The source of vibrations may be a magnetostrictive rod c, the piston end d of which entirely fills the cross-section of the tube. The tube may be tuned to resonance with the vibrations by moving a piston f. The turbid fraction then collects at the nodal points whence it is withdrawn by tubes h<1>-h<4> and the clarified liquid is withdrawn at the intermediate points i<1>-i<4>.
Patent GB-854231-A (GB)
Title: Improved drying oils
Inventor: HOSKING ALIDA HELENA
IPC: C08F10/00
Filed: 1958-09-12
Abstract: A drying or semi-drying oil is copolymerized with myrcene in the presence of a free radical catalyst.  The oil may be the oil component of a drying or semi-drying oil-modified alkyd resin. Specified oils are linseed, dehydrated castor, soya bean and cottonseed.  Specified catalysts are ditertiary butyl peroxide, dicumyl peroxide and benzoyl peroxide.  The ratio of myrcene to oil is perferably 1 : 2 to 2 : 1 although as low as 1 : 5 may be used for an oil-modified alkyd resin, e.g. a long oil pentaerythritol/glycol alkyd.  The reaction may take place at 100-160 DEG C., in an inert solvent such as hydrocarbon solvent, white spirit and xylene.  Mixed with driers, e.g. cobalt manganese, lead or calcium naphthenates or octoates they form oil-drying coating compositions.
Patent GB-1113989-A (GB)
Title: Improvements in or relating to electrical insulation
Inventor: DAVIS JAMES HENRY
IPC: H01B13/08
Filed: 1964-07-17
Abstract: A fibrous or porous tape is first coated or impregnated with a paste or like viscous composition based on a vulcanisable organo-silicon polymer and wound on a spool and is subsequently wrapped under tension on the conductor and either vulcanized or allowed to vulcanize.  The fibrous or porous tape may be woven glasscloth, woven polyethylene terephthalate or asbestos and may be given a primary coating of a dilute solution of a silicone resin or a priming material.  The tape may be passed through a hopper containing the paste (Fig. 1, not shown) passing out through jaws which may be spring loaded towards the tape, and finally wound on a spool in a cassette.  When the material is used for binding a conductor it may be drawn from the cassette held in the hand over a wick fed with a catalyst to produce vulcanising. Various vulcanising methods are possible; the composition may include an organic peroxide for heat curing or it may be vulcanized by ionizing radiation; the composition may contain a reactive radical such as acetoxy or oxime so that it can be stored in the dry but reacts with atmospheric or other moisture; the composition may comprise an organo-polysiloxane together with a cross-linking agent and a condensation catalyst; finally, there may be used a cold curing composition that vulcanizes as a result of the reaction, in the presence of a platinum catalyst, of an organosilicon polymer containing silicon-bonded vinyl radicals with one containing silicon-bonded hydrogen atoms.ALSO:A fibrous or porous tape is first coated or impregnated with a paste or like viscous composition based on a vulcanisable organo-silicon polymer and wound on a spool and is subsequently wrapped under tension on the conductor and either vulcanized or allowed to vulcanize.  The fibrous or porous tape may be woven glasscloth, woven polyethylene terephthalate or asbestos and may be given a primary coating of a dilute solution of a silicone resin or a priming material.  The tape may be passed through a hopper containing the paste (Fig. 1, not shown) passing out through jaws which may be spring loaded towards the tape, and finally wound on a spool in a cassette.  When the material is used for binding a conductor it may be drawn from the cassette held in the hand over a wick fed with a catalyst to produce vulcanising. Various vulcanising methods are possible; the composition may include an organic peroxide for heat curing or it may be vulcanized by ionizing radiation; the composition may contain a reactive radical such as acetoxy or oxime so that it can be stored in the dry but reacts with atmospheric or other moisture; the composition may comprise an organo-polysiloxane together with a cross-linking agent and a condensation catalyst; finally, there may be used a cold curing composition that vulcanizes as a result of the reaction, in the presence of a platinum catalyst, of an organosilicon polymer containing silicon-bonded vinyl radicals with one containing silicon-bonded hydrogen atoms.
Patent GB-918572-A (GB)
Title: Improvements relating to tool grinding fixtures
Inventor: MUELLER ALVIN E
IPC: B24B41/06
Filed: 1961-08-15
Abstract: 918,572. Grinding. HARIG MANUFACTURING CORPORATION. Aug. 15, 1961, No. 29354/61. Class 60. A tool-grinding fixture comprises a spindle 31 of substantially uniform diameter throughout its length mounted for relative movement in a sleeve 36 supported in a housing 17 carried by a base 11, the sleeve being formed with a gasreceiving circumferentially-extending recess 44 in its inner surface between its opposite ends and with the inner diameter of the sleeve adjacent the ends of the recess slightly greater than the inner diameter of the sleeve at its outer ends to provide circumferentially-disposed tapered restrictive passages to retard the escape of gas from the recess whereby the sleeve is suspended by the retarded gas. The tapered portions of the sleeve may terminate just short of the ends of the sleeve to provide short cylindrical end portions. The housing supporting the sleeve is pivotally mounted on a pin 25 on the base 11 and can be moved from an operative position through a small angle against the force of a spring 26 so that after a grinding operation on the tool 29 which may be a drill or milling cutter, the tool can be moved from engagement with the grinding-wheel as it is withdrawn, the spindle being extended at 45 to form a handle for controlling the movement of the spindle. The axial movement of the spindle is limited by rollers 58, 61 when the spiral cutting-edges 33 of the tool are to be ground. If the end cutting edges 32 are to be ground, the collars 58, 61 can be adjusted to prevent axial movement of the spindle, a small gap being left between the collars and the housing so that gas escaping from between the spindle and sleeve now acts to form a thrust bearing between the collars and housing. The housing is adjustable about a horizontal axis on an upright 16 which, in turn, is adjustable about a vertical axis on the base, the base having grooves 13 and slots 12 for securing the fixture to the bed of a lathe or toolgrinder. A finger 46 for angularly locating the tool during grinding is adjustably mounted on a rod 47 adjustable along one or other of slots 51, 53. The fixture may be modified so as to have a vertical spindle and if only axial movement of the spindle is required, the cross-section of the spindle may be non-circular. The gas is supplied through an inlet 41 to the recess in the sleeve and may be air, nitrogen, carbon dioxide or other gas.
Patent GB-960646-A (GB)
Title: Web feeding device
IPC: B65H20/12
Filed: 1961-08-15
Abstract: 960,646. Feeding webs. SPERRY RAND CORPORATION. Aug. 15, 1961 [Aug. 15, 1960], No. 29459/61. Heading B6B. A web feeding device comprises a perforated roller 1 frictionally engaging a web 30 and a differential fluid valve 13 having an input connected to a source of fluid control signals and two outputs 11, 21, one of which 11 is connected to the roller 1 to create therein a pressure dependent upon the pressure of the fluid signals, whereby the acceleration and the speed of the web may be controlled. The valve 13, Fig. 4, is connected by conduits 15 and 17 to sources of fluid pressure signals so as to deflect the fluid stream from orifice 39 at the end of a conduit 19 to duct 29 or 27 according to whether the signal is applied to conduit 15 or 17, thus causing an increase in pressure in one duct and a reduction in the other. The outputs 11 and 21 may be connected to two rollers 1, 1a, Fig. 3, rotating in opposite directions, such that web 30 may be moved in opposite directions by applying signals to either conduit 15 or 17.
Patent GB-363733-A (GB)
Title: Improvements in or relating to gas governing devices
IPC: G05D16/18
Filed: 1930-10-02
Abstract: 363,733. Pressure-regulating valves. SIMPSON, J. F., Gas Works, Scunthorpe, Lincolnshire, PEEBLES, W. C. and PEEBLES & CO., Ltd., Tay Works, Bonnington, Edinburgh. Oct. 2, 1930, No. 29468. [Class 135.] Valves controlled by pilot or relay valves.-A pressure regulator adapted to replace the usual retort house governor without alteration of the existing supply and byepass connections has a main valve housed in a casing with inlet and outlet branches substantially at right-angles. The main valve is actuated by compressed gas or air acting on a double-acting piston controlled by an auxiliary valve actuated by inlet pressure. In the form shown in the Figure a main butterfly valve 3 is mounted on a spindle 3<1> carrying a pulley 10 wrapped by crossed tapes secured to a member 11 on the pistonrod 12. The auxiliary valve is coupled by a lever 16 loaded by a spring 161 to a diaphragm 6 acted on by inlet pressure admitted through a pipe. 19. In a modification the butterfly valve is replaced by a piston valve connected either directly to the actuating piston or by crossed tapes wound on a pulley to a cylinder arranged at the side. Specifications 271,134 and 271,359, [both in Class 135, Valves &c.], are referred to.
Patent GB-909079-A (GB)
Title: Improvements in and relating to pulverising machines
Inventor: MAHLER JOHN HAROLD
IPC: B02C13/22
Filed: 1961-08-16
Abstract: 909,079. Impact pulverizers. HERBERT Ltd., ALFRED. Aug. 16, 1961, No. 29509/61. Class 59. In a pulverizing machine of the kind having a generally cylindrical chamber divided by a rotor 13 into axially-spaced inlet and outlet portions, the outlet portion being provided with rows of interacting axially-overlapping pulverizing pegs 24, 25, 26 and 27, and the rotor shaft 14 being provided with radial fingers 28 to prevent too large particles from being drawn through an outlet 16 by a current of air induced by a fan 17 through an inlet 15, at least some of the arcuate segments 31 of the rotor 13 are each provided with an excrescence 30 radially inwardly of its peg 25, the excrescences serving to break up and divert the stream of too-large particles flung out centrifugally by the fingers 28, so that the stream will not be concentrated on particular pegs 25. Each excrescence is preferably in the form of a rectangular table which is integral with the associated segment.
Patent GB-342710-A (GB)
Title: Improvements in circuit arrangements for the registration of electric impulses
Filed: 1929-09-30
Abstract: 342,710. Counting-apparatus ; electric meters. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. - (Assignees of Wiberg, H. A. ; 22, Svardsjogatan, Falun, Sweden.) Sept. 30, 1929, No. 29586. Convention date, Oct. 4, 1928. [Class 106 (i).] Counting mechanism for summing the number of electric impulses sent from separate devices such as electricity meters comprises self-locking primary relays and secondary relays, the secondary relays being controlled by the primary relays to prevent more than one secondary operating and to prepare another secondary so that it operates when its primary is unlocked, an unlocking impulse being sent on each operation of the counter. In one arrangement, Fig. 1, should impulses be given simultaneously from electricity meters A<2>, A3, relays B<2>, B<3> are energized to close contacts C2, C3. The relay D<2>, however, is alone energized since contact C<2> breaks the circuit to relay D3. The relay D<2> closes contact E<2> and supplies the counter relay F with current, and at the same time breaks the circuit from the relay D<1>. Hence relay D2 alone is operative whilst relays D<1>, D<3> are inoperative to supply current to the counter relay, but may be " standing by " to forward an impulse in turn. In order to prevent interference when the contact C<1> breaks the circuit to relay D<2> should meter A<1> transmit an impulse simultaneously with meters A<2> and A<3>, the relays D<1-3> have further contacts K<1-3> which maintain energization through contact O. The counter relay F in closing its contact I energizes a relay M provided with a normally closed contact P and normally open contacts L, R. The opening contact P breaks the circuit through contacts C<1> which are returned to their original positions by relays G<1-3> energized through the closing contact L and contacts H<1-3>. The closing contact R energizes a relay N which breaks the circuit to the relays D<1-3> through contact O and contacts K<1-3>. On de-energization of the counter relay F, the contacts P, L, R are restored. The relay D<1> may now function to energize the counter, the above-described actuation of the relay system occurring to prevent any other impulse coming through, whereafter the relay D<3> similarly functions. In a modification, the relays G are replaced by resistances in series with the relays B<1> <3>, short-circuit currents being employed for retaining and releasing the contacts C<1-3>.
Patent GB-475305-A (GB)
Title: Improvements in or relating to the manufacture of adhesives such as wood glue
IPC: C09J189/00
Filed: 1936-10-30
Abstract: An adhesive comprises acid casein, free formaldehyde, sodium or potassium hydroxide or a basic salt thereof, and water in the following proportions: 1000 grams casein (isoelectric), 0,2-1 gram molecule of formaldehyde, 0,3-1 gram equivalent of soda, potash or a basic salt thereof, and at least sufficient water to give a liquid product.  The basic salt may be a carbonate, phosphate or silicate. Specification 128,690, [Class 121], is referred to.
Patent GB-606445-A (GB)
Title: Improvements in or relating to charging machines
IPC: F27D3/00
Filed: 1945-11-07
Abstract: 606,445. Charging machines. BROSIUS, E. E. Nov. 7, 1945, No. 29645. [Class 51(ii)] In a furnace charging machine of the ram type adapted for use with an open ended charging box containing a pusher operated by said ram to discharge the contents, connecting means such as a latch is pivoted to the pusher and is operative in one rotative position to connect the pusher to the ram when the latter begins the withdrawing out movement of said box and has means to rotate said connecting means about its pivot when the pusher arrives at its fully withdrawn position in order to render said connecting means inoperative and to allow withdrawal of the ram from the charging box. The power driven machine 2 has a pivoted peel or ram 13 with a projection 20 cooperating with a socket 21 in the charging box 22, in which slides a pusher 27 having a pivoted face member 30 resting vertically against the body portion 28, to which is pivoted a latch pin 42. When the hydraulically operated piston rod 31 drives the pusher 27 forward the latch pin 42 takes up the position shown in dotted lines in Fig. 3, with one arm engaging a recess at the forward end of said piston rod. On completion of the backward stroke the pin 42 drops back to its starting position, releasing the pusher from the piston rod. In a modification the peel has a tapered end which engages a socket in the charging box and is held in place by keys, the rod and pusher being fixed by a pin engaging aligned holes in each.
Patent GB-726413-A (GB)
Title: Improvements in or relating to protective battery covers for electric torches and flash lights
IPC: F21L4/00
Filed: 1953-10-27
Abstract: 726,413. Electric battery lamps. MISTRY, R. H. Oct. 27, 1953 [Oct. 31, 1952], No. 29655/53. Class 39 (2). [Also in Group XXXVI]. A protective cover for the dry battery of an electric torch comprises an insulating tube provided at its ends with caps or flanges B, J having openings A, K and fitted internally with resilient washers D, H. The tube may be made in two parts C. G which can be connected together frictionally or by screw threads. When the battery is placed in the cover and the two parts secured together the battery is held against movement by the pressure of the washers D, H. The torch bulb makes contact with the battery through the opening A.
Patent GB-629279-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R27/26
Filed: 1946-10-05
Abstract: 629,279. Capacitance measurements. BEVERIDGE, H. N. Oct. 5, 1946, No. 29766. Convention date, Oct. 29, 1945. [Class 37] The capacitance between two terminals of a circuit element is measured by connecting them to the control-grid and anode of a valve arranged as a voltage amplifier, applying an alternating voltage to the control grid, and measuring the effective grid-cathode capacitance of the valve. A high-frequency voltage derived from a signal generator 1 is applied through a buffer amplifier 10 and a condenser 11 to the control grid of an amplifier valve 25. Between the control grid and the earthed cathode of the valve 25 are connected a resistance 13 in series with a switch 12, a calibrated variable condenser 16, a vacuum tube voltmeter 17, and an inductance coil 14 proportioned to resonate at the signal frequency for some intermediate setting of the condenser 16. The anode of the valve 25 is connected through a load resistor 24 to the positive side of a D.C. source 15. An inductance coil 27, variable condenser 29, short-circuiting switch 31, and valve voltmeter 32, are connected in parallel, one side of the circuit being earthed and the other side connected through a condenser 26 to the anode of the valve 25. The coil 27 is proportioned to resonate at the signal frequency for some median setting of the condenser 29. Small condensers 36, 38 are connected in series between the grid of the valve 25 and the condenser 29 and their junction is earthed through a low resistance 39. A radio receiver 40, tunable to the frequency of the signal generator 1, is connected across the resistor 39. The circuit element X, of which the capacitance is to be measured, is connected through terminals 33, 35 between the control grid of the valve 25 and the condenser 29. The switch 12 is closed so that the valve 10 becomes a low impedance voltage source supplying a small constant voltage to the grid of the valve 25. With the switch 31 open the condenser 29 is adjusted until a null or sharp minimum in signal strength is detected in the receiver 40, indicating that the anode circuit of the valve 25 is so adjusted that a 180 degrees phase relation exists between the plate and grid voltages. The switch 12 is then opened and the switch 31 closed, reducing the amplification of the valve 25 to zero. The condenser 16 is then tuned to resonance and the setting noted. The switch 31 is opened and the condenser 16 agains adjusted to resonance. The new setting is noted and the change of capacitance obtained by subtracting the second reading from the first: The readings of the voltmeters 32, 17 are noted and the amplification determined from their ratio. The value of the unknown capacitance is then obtained by dividing the change of capacitance by the amplification and subtracting the inherent grid-anode capacitance.
Patent GB-927305-A (GB)
Title: Suspension device for overhead cables, particularly for composite self-supporting electric cables
IPC: H02G7/05
Filed: 1961-08-17
Abstract: 927,305. Supporting cables. SIRTI SOC. ITALIANA RETI TELEFONICHE INTERURBANE S.p.A. Aug. 17, 1961 [Aug. 19, 1960], No. 29770/61. Class 36. A suspension device for cables, especially plastics-sheathed self-supporting cables, comprises a clamp for gripping the cable, a supporting fastening and an elastic element interposed between the clamp and the fastening, the element being adapted to permit transverse oscillations of the cable. As described an elastic element 3 in the form of a rectangular plate is pivotally held at one end by a pin 4 between jaws 2 of a clamp. Between the ends 2<SP>1</SP> of the jaws 2 is held the supporting strand of a selfsupporting cable 1. Clamping of both the elements 3 and cable 1 is ensured by means of a screw 5, or a nut and bolt. The element 3 is supported at the other end from a bracket 7 by means of a bolt 6. An open slot 8 through which the bolt 6 passes facilitates easy replacement of the device. To limit the amplitude of oscillation of the cable 1 the member 3 is provided at the supporting end with a rigid member 9. When used with an inclined cable run either or both the clamp 2 and strap 5 are turned about their pivots.