baber/WOPTO huggingface dataset:
Patent GB-492009-A (GB)
Title: Improvements in means for supplying current to electric heating elements disposed inelectric furnaces and consisting of carbon
IPC: F27D11/00
Filed: 1937-12-15
Abstract: 492,009. Couplings. I. G. FARBENINDUSTRIE AKT.-GES. Dec. 15, 1937, No. 34696. Convention date, Dec. 31, 1936. [Class 38 (i)] [Also in Group XI] The current leads of a graphite resistance heating element for an electric furnace consist of a metal or alloy of high melting point and good electrical conductivity, e.g. molybdenum, tantalum, &c. The leads are screwed to the element inside the furnace walls.
Patent GB-1183996-A (GB)
Title: Optical Borate Glass
Inventor: HEINDORF WOLFGANG
IPC: C03C3/23
Filed: 1967-07-28
Abstract: 1,183,996. Borate glass composition. JENAER GLASWERK SCHOTT & GEN., JENA, VEB. 28 July, 1967, No. 34728/67. Heading C1M. An optical borate glass composition for producing a glass having nd 1À76-1À90 and vd 34-49 consists essentially of, in percentages by weight; B2O3 17-35; Gd2O3 2-55; La2O3 0-50 and Ta2O5 0-50. Optional additives are Y2O3 0-18; Nb2O5 0-10; ZrO2 0-12; WO3 0-12; TiO2 0-10; CdF2 0-5 and ZnF2 0-5. Conventional refining means may be present. The composition may be melted electrically at 1150-1400‹ C. in Pt crucibles; refining takes place 50‹ C. above melting; casting temperature is ca. 1000‹ C: and initial annealing at ca. 650‹ C.
Patent GB-1448516-A (GB)
Title: Vinyl-terminated prepolymer and a thermosetting resinous  composition containing it
IPC: C08G18/67
Filed: 1974-08-07
Abstract: 1448516 Vinyl-terminated prepolymers, and polymerizable compositions thereof KAO SOAP CO Ltd 7 Aug 1974 [14 Aug 1973] 34794/74 Headings C3P and C3R Vinyl-terminated prepolymers are obtained by reacting (a) an organic polyisocyanate with (b) at least one equivalent of a compound of formula wherein R is -CH 2 - or n is an integer of 1-4, and X is -H or -CH 3 . Component (a) may itself be a prepolymer. The above reaction suitably takes place in solution in a polymerizable monomer with which the vinylterminated product may be copolymerized, and the invention includes the polymerizable compositions so formed. Examples are given as follows: (1) mixed 2,4/2,6-tolylene diisocyanates are reacted with a polyester glycol (prepared from propylene glycol and isophthalic acid) in solution in p-chlorostyrene to form a polisocyanate reactant (a), which is then reacted with (b) p-(2-hydroxypropyl) styrene; (2) 2,4- tolylene diisocyanate is reacted in styrene solution with polyoxypropylene-modified Bisphenol A to form reactant (a), which is then reacted with (b) p-vinyl-benzyl alcohol; (4) 4,4<SP>1</SP>-diphenylmethane diisocyanate is reacted in methyl methacrylate solution with polyoxytetramethylene glycol to form reactant (a), which is then reacted with (b) ethylene glycol-mono/-(p-vinylphenyl) ethyl ether; and (5) 1,3-phenylene diisocyanate is reacted in styrene solution with liquid polybutadiene glycol to form reactant (a), which is then reacted with (b) p-hydroxyethyl styrene. The polymerizable compositions thus obtained are cured at room temperature in the presence of cobalt naphthenate and methyl ethyl ketone peroxide, and are then post-cured at 100‹ C. In Example 3, the polymerizable compositions of Examples 1 and 2 are cured in the presence of 3 sheets of chopped strand glass mat to form a fibre-reinforced plastic.
Patent GB-1438012-A (GB)
Title: Gamma ethylenic alcohols
IPC: C07C31/125
Filed: 1973-05-29
Abstract: 1438012 Ethoxylated Alk-3-en-1-ols JEFFERSON CHEMICAL CO Inc 29 May 1973 [7 June 1972] 34866/74 Divided out of 1438011 Heading C3R [Also in Division C2] The invention comprises compounds of the formula  where w is 0 or 7-15; R<SP>11</SP> is linear alkyl; and R<SP>111</SP> is linear alkyl containing at least two carbon atoms, R<SP>11</SP> and R<SP>111</SP> containing a total of 7-17 carbon atoms. The compounds are made by reacting olefines of the formula where R and R<SP>1</SP> are linear alkyl containing a total of 8-18 carbon atoms, with formaldehyde or a precursor thereof and, ethoxylating the resulting alcohols. The ethoxylated compounds of the invention are surfactants.
Patent GB-1305247-A (GB)
IPC: D03J1/22
Filed: 1970-07-20
Abstract: 1305247 Loom temples SULZER BROS Ltd 20 July 1970 [12 Aug 1969] 34984/70 Headings D1E and D1K A loom temple has, adjustably mounted on a deflecting edge 15a of its cover 12, an L- shaped guide member 22 which is adjustable transversely and perpendicularly to the warp, to prevent the edge of the fabric running off the outside of the temple. The finger is mounted on a support 23 consisting of a slider, which has an auxiliary cloth guiding edge, lower than edge 15a of the cover, which deflects the selvedge out of the plane of the fabric so that a selvedge needle 19, as it retracts tucks in only a portion of the weft in the outermost warp threads, Fig. 3. The selvedge may be spaced from the fabric, and have leno threads 1c on either side of the gap 20 between the selvedge and the fabric.
Patent GB-291695-A (GB)
Title: Improved lighter for cigarettes, cigars or the like
IPC: F23Q2/08
Filed: 1927-12-24
Abstract: 291,695. Armstrong, J. J. V., (Aronson, L. V.). Dec. 24, 1927. Pocket igniters, frictional. - A member 24 carrying a wick cap 25 is connected with the friction-wheel 30 by a spring-pressed pawl 40 and a ratchet wheel 39 and is secured to a pair of pinions, mounted freely on the shaft 15 of the friction-wheel and in mesh with racks 38 carried by a spring-pressed plunger 35 so that, by depressing the latter, the wick-cap is raised and the friction-wheel rotated simultaneously. The cap 25 is provided with a resilient gasket 26 adapted to fit the tapered end of the wick tube 27. A windscreen 42 is pivoted upon the ends of the shaft 15 so that it may be moved clear of the wick and is retained in the normal position by a latch 43 engaging the rim of a cover 45 secured to the top of the fuel container 10. The closure plug 48 is provided with a pin 51 for adjusting the wick and for loosening the absorbent material 20.
Patent GB-1113270-A (GB)
Title: Improvements in or relating to systems for controlling nitrite addition in acidic phosphatizing solutions
IPC: G05D21/02
Filed: 1965-08-16
Abstract: In producing phosphate coatings upon a succession of ferrous metal surfaces by contacting them with a nitrite-containing aqueous acidic zinc phosphate solution, the solution is replenished with nitrite ion at a rate governed by the potential measured across a pair of redox electrodes immersed in the solution while contact is maintained between the solution and the surfaces.  The solution may also contain calcium phosphate, oxidizing accelerator such as nitrate, non-oxidizing accelerators such as Cu, Ag, Ni and/or Co as well as simple and complex fluorides and salts of polyphosphoric acids. Replenishment with nitrite ion is initiated when the measured potential falls to a pre-selected value and is subsequently discontinued either a) when the measured potential rises above a higher pre-selected value or b) after a pre-selected time interval. Replenishment may be prevented during a further pre-selected time interval occurring immediately after the replenishing time interval. The redox electrodes may comprise a calomel and a Pt electrode. Alternatively Au-calomel or C-calomel systems may be used.  The inert one of the pair of redox electrodes may be periodically cleaned by first rendering it anodic relative to a second inert electrode positioned adjacent thereto and subsequently rendering it cathodic relative to the second inert electrode.  Fig.1 (not shown) illustrates a line wherein car parts are spray-treated as they are conveyed through a tunnel (4).  They are cleaned with an aqueous solution of Na3PO4 or Na2CO3 (at 5), water rinsed (at 6 and 7), phosphate conversion coated (at 8), water rinsed (at 9), acid rinsed (at 10) e.g. with chromic acid to stabilize and passivate the conversion coating and oven dried (at 3) prior to painting.  Fig. 2 (not shown) illustrates the spraying of workpieces (19, 20) with the phosphate solution as they move along a conveyer (1) circulation of the solution and addition of phosphate and replenishing NaNO2 from drums (28, 33) to the circulating solution.  Fig. 3 (not shown) illustrates calomel and Pt redox electrodes (40, 41) triggering operation of a time switch (T1 or T2) to control a motor (32) which drives a pump (31) to deliver nitrite solution from a drum (33) to the phosphate solution.  Switching mechanism controls cleaning of the electrode (41) with the aid of an auxiliary Pt electrode (42).
Patent GB-605533-A (GB)
Title: Improvements in or relating to centrifugal compressors for supercharging internal-combustion engines
IPC: F02B33/00
Filed: 1945-12-28
Abstract: 605,533. Air compressors. WILDE, G. L., and ALLEN, F. J. Dec. 28, 1945, No. 35112. Drawings to Specification. [Class 110 (i)] Surging is prevented in a two-stage centrifugal compressor by reducing the area of the diffuser passages in one stage only. When the compressor is used as a supercharger for an internal-combustion reciprocating engine, the reduction takes place in the low-pressure stage and when used as the air-compressor in a gas turbine plant, the reduction takes place in the high-pressure stage. The reduction may be effected by diffuser vanes pivoted at their midpoints or at their leading edges,' or by plates pivoted in recesses in the diffuser blades or by diffuser blades slidingly mounted in grooves in the side walls. The moving vanes or plates are connected by mechanism so that all move together. The reduction may also be effected by a lateral movement of one diffuser side wall. The moving parts are operated by a servomotor through a spring-loaded toggle so that they move from one extreme position to the other. The servomotor may be responsive to the speed or the pressure-ratio of the compressor. When the compressor is driven through a variablespeed gear, the control is rendered ineffective when the low and medium speed gears are in use.
Patent GB-522159-A (GB)
Title: Improvements in closures for collapsible tubes
IPC: B65D41/04
Filed: 1938-12-02
Abstract: 522,159. Closures for collapsable tubes. LEVER BROS. & UNILEVER, Ltd., and EDWARDS, G. H. Dec. 2, 1938, No. 35122. [Class 125 (iii)] A collapsable tube 1 has an externally threaded nozzle 2 with its free end formed as a truncated cone 4; the detachable cap 6 has an internal thread 7 at the upper end' of which is an annular edge 11 formed by the intersection of two conical surfaces 9, 10. The cap is made of resin, preferably the condensation product known under the registered, Trade Mark "Bakelite," and when it is screwed on, an effective seal is formed By the contact between the edge 11 and the surface 4. The surface may be on the cap and the edge on the tube, or the surface may be formed on a non-metallic inset at the mouth of the tube. This inset prevents the extruded contents of the tube from touching the metal mouth as described in Specification 512,158.
Patent GB-522160-A (GB)
Title: Improvements relating to door and like fastenings
IPC: E05B65/32
Filed: 1938-12-02
Abstract: 522,160. Door &c. fastenings. WILMOTBREEDEN, Ltd., and SMYE, A. Dec. 2, 1938, No. 35133. [Class 44] A fastening particularly for doors of road vehicles comprises a vertically slidable bolt f which projects into a transverse recess d provided in the end b of the casing. The bolt, which, as described is cylindrical or provided with a roller, has a reduced stem e which passes through a vertical guide-slot g and is secured to one web of a sliding angle-plate h, the other web of which is of V-form flattened at n. The bolt is biassed to its upper or release position by a tension spring i anchored to the inner end of stem e and to a pivoted safety catch u the free end of which projects downwards into recess d. Downward movement of catch u is limited by a stop w. Recess d is of tapering form and receives a correspondingly shaped keeper block r with a recess t engaged by catch u and a curved bolt;receiving slot s which positively moves the bolt down to the locking position shown by cam action. The bolt is retained in this position by a horizontally sliding detent i with a recess embracing the V-form portion of plate h, as shown, under the action of a tension spring o. The detent is retracted by inside and outside handles operating corresponding followers p which engage projection q. A projection v raises catch u and the detent is retained in retracted position until the door is closed by flat n riding on to the vertical end of the detent.
Patent GB-343488-A (GB)
Title: Improvements relating to apparatus for brooding poultry and other gallinaceous birds
IPC: A01K31/18
Filed: 1929-11-18
Abstract: 343,488. Rearing poultry &c. ARBUTHNOTT, H. and LEE, A. J., of Scottish Poultry Industries, Burghmuir, Stirling- shire. Nov. 18, 1929, No. 35134. [Class 5 (ii).] A multiple brooder of the kind described in Specification 333,060, [Class 5 (ii), Housing &c. animals], has the heating conduit disposed above the rear end of each cage which is made of reduced height and is constructed to let the heat pass directly on to the backs of the birds. The brooder comprises a frame 15 with rectangular compartments each provided with slides or guides 17 to permit a cage 16 to be slid therein. Each cage is formed of a sheet metal frame with a sheet metal shell 18 for the back part of the side adjacent thereto, the front and the remainder of the sides having a number of vertical bars or wires to which cover plates 20 are adjustably secured by nuts 21 and screws. A space 22 is left below the cover plates to enable the birds to get food or drink from troughs 23 running along the lower edges of the sides and the front. The floor and the roof of each cage are composed of wire netting supported on cross wires. A droppings board 30 slides on guides 27 below each cage. The floor of each cage may be slid out and replaced by one with wider mesh netting. Part of the roof of each cage is hinged to form a door. The rear part of each cage is made of reduced height to permit hot water or other heating pipes 29, 29a, to pass over it. Control valves 33 are placed on the piping at the end of each layer to adjust the heating effect to suit the age of the birds in that layer of cages. The control may be thermostatic. Electric heating devices may be used and individual cages or rows or groups thereof may be kept at different temperatures.
Patent GB-765343-A (GB)
Title: Improvements in and relating to door securing devices
Inventor: HICKS ANTHONY MICHAEL
IPC: F24C15/02
Filed: 1953-12-17
Abstract: 765,343. Releasable fastenings. JACKSON ELECTRIC STOVE CO., Ltd. Nov. 2, 1954 [Dec. 17, 1953], No. 35167/53. Class 44. A magnetic door catch device for fastening a door 4 in relation to inner door 3, comprises a permanent magnet 7, 8, and a keeper 10 mounted respectively on the outer door 4 and the inner door 3, and cam means operable by manual rotation of a handle 11 on the door 4 for forcing apart the keeper 10 and magnet 7, 8 in order to enable these members to be separated. As shown, applied to a duplex door 4 of an electric cooker, the inner glass door 3 is carried by a frame 2 which, in the closed position of the door, is secured by a conventional stud-and-socket fastening 5. The outer door 4 is hinged to the frame 2 and carries a member 6 on which a door handle 11 is rotatably mounted. The magnet comprises a pot 7 and core 8 separated by a non-ferrous ring 9, and is secured rigidly to the handle 11 by a screw 12. The keeper 10 is universally mounted at 10a in a frame rigid with the member 2. Cam tracks 13, 13a are formed on the member 6 and the handle 11, so that on rotation of the handle, the magnet 7, 8 is forced axially outwards, out of engagement with the keeper 10. In operation, when both doors are closed, a pull outwards on the knob 11 results in both doors opening together, since the force required to open the fastening 5 is less than the attractive force between the magnet 7, 8, and the keeper 10. To open the door 4, only, the knob 11 is rotated, so as to retract the magnet 7, 8 against its return spring 14, and so break its attraction with the keeper 10.
Patent GB-1012590-A (GB)
Title: Improved helicopter rotor
Inventor: WILDE GEOFFREY LIGHT
IPC: B64C27/18
Filed: 1964-08-27
Abstract: 1,012,590. Jet-propelled helicopters. ROLLSROYCE Ltd. Aug. 27, 1964, No. 35241/64. Headings B7G and B7W. [Also in Divisions F1 and F2] A helicopter rotor blade (Fig. 2) comprises an outer tubular member 18 and an inner tubular member 19 containing a gas-turbine jet engine 21 and leading to a tip nozzle 29. The wall of the outer member has axiallyextending slots (Fig. 4, not shown), through which air is discharged to induce circulation around the blade. Preferably the outer member is of circular section adjacent and inboard of the engine and merges into an aerofoil section outboard of the engine. As described, the engine is of the by-pass type, and is supplied with air, as are the slots in the outer member, from a duct 31 connected to a manifold 30 (Fig. 1), into which by-pass air from a by-pass gasturbine propulsion engine 13 is bled. During normal forward flight when the aircraft is supported in wings 11, the rotor is stopped in the fore-and-aft position, and the supply of air from the engine 13 is stopped by a valve. The engine 21 is started by the flow of air from the engine 13. As described, there are two rotors, one on each wing, but there may be a single rotor, or more than two.
Patent GB-840272-A (GB)
Title: Improvements in methods of recovering aldehydes and alcohols
IPC: C07C27/22
Filed: 1957-11-13
Abstract: The crude mixture comprising aldehydes and alcohols containing 6-16 carbon atoms obtained by the oxo process, is treated to remove cobalt and cobalt compounds and is then treated with an amount of water, at least stoichiometrically equivalent to the hydrolysable components of the mixture, at a temperature above 150 DEG  C. and at a pressure greater than the vapour pressure of water at the temperature of treatment, and a fraction comprising aldehydes and alcohols. Preferably an amount of water equal to 10-50% by volume of the organic phase is used.  The hydrolysis may be carried out continuously or otherwise.  The preferred method of removing cobalt and cobalt compounds is by treating the crude product with aqueous sulphuric acid and removing the aqueous phase.  Suitable olefines are straight and branched-chain olefines and diolefines.  Preferably the cobalt catalyst is used in slurry form.  The aldehyde product may be catalytically hydrogenated to alcohols using, for example, nickel, cobalt, platinum or copperchromic oxide as catalyst.  Alternatively the aldehyde product may be oxidized to the corresponding carboxylic acids by air or molecular oxygen with or without a catalyst such as manganese, copper, chromium, or iron salts or alternatively by an oxidizing agent such as potassium permanganate, nitric acid, cupric salts or ammoniacal silver nitrate.  Reference is made to the oxidation of a C10 aldehydealcohol fraction to decanoic acid.
Patent GB-1434971-A (GB)
Title: Gain control circuit
IPC: G01B3/10
Filed: 1973-07-25
Abstract: 1434971 Gain control circuits SONY CORP 25 July 1973 [27 July 1972] 35384/73 Heading H4R A balanced gain control circuit has a current source 29 in series with respective differential amplifiers 31, 34 and 31<SP>1</SP>, 34<SP>1</SP> and load impedances 39, 39<SP>1</SP> so that D.C. current is split equally between the differential amplifiers, the source 29 takes the full D.C. and A.C. current but by variation 33, 34, 34<SP>1</SP> of the impedance of diodes 32, 32<SP>1</SP> in one arm of the amplifiers the relative amounts of signal current i 1 <SP>1</SP> and i 2 <SP>1</SP> can be controlled, thereby controlling the A.C. signal outputs 37, 37<SP>1</SP> independently of the D.C. bias 38. The input signal 26 is applied to a further differential amplifier 27, 27<SP>1</SP> forming part of the source 29 which itself has a constant D.C. current source 28.
Patent GB-442427-A (GB)
Title: Improvements in and relating to cathode ray tubes
IPC: H01J29/62
Filed: 1934-06-09
Abstract: 442,427. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. June 9, 1934, No. 35402/35. Convention date, June 10, 1933. Divided out of 442,511 and addition to 421,050. Drawings to Specification. [Class 39 (i)] In a cathode-ray tube which comprises a concentrating electrode consisting at least partly of semi-conducting material to the ends of which are applied different potentials as described in the parent Specification, the electrode consists of an annular insulating plate furnished with a spiral-shaped layer of semiconducting material such as graphite or colloidal carbon. The electrode may be used as the negative element in an electron-optical system which as described in Specification 442,511 consists of one or two positive perforated plates and a negative element consisting of a funnelshaped member or of a positive plate provided with a tubular abutment. A pre-concentrating system may be formed by two electrodes the inner ends and also the outer ends, of the spirals being given the same potentials.
Patent GB-1222837-A (GB)
Title: Thin film piezoelectric device
IPC: H03H9/17
Filed: 1968-07-24
Abstract: 1,222,837. Semi-conductor circuits. SANDERS ASSOCIATES Inc. 24 July, 1968 [24 July, 1967], No. 35420/68. Heading H3T. [Also in Division H1] An oscillatory generator comprises an epitaxial thin film of semi-conductive piezoelectric material bounded by acoustic discontinuities. The material (e.g. CdS) is subject to a D.C. voltage providing a drift field for charge carriers in the material. The properties of the material are such that there arises an interchange of energy between an acoustic wave and an r.f. wave propagating in the direction of the D.C. field in a manner analogous to the action of a travelling-wave tube. Longitudinal or shear waves are propagated depending upon the direction of the C-axis of the material. The discontinuities reflect the wave energy back into the layer of material which resonates electromechanically at a frequency dependent upon its thickness e.g. a frequency of 3200 MHz may be generated by a film having a thickness of 1À29 (w+1) Á where n#0 and 1À29 Á is one halfwavelength (#/2) of the generated acoustic energy. The device shown is an oscillator and comprises a #/2 layer 9 of CdS grown epitaxially upon a layer 8 of gold. A D.C. voltage is applied between the layer 8 and a further conductive layer 16 the diameter of which determines the lateral boundaries 14 of a resonant cavity. The longitudinal boundaries are determined by the electrode 16 and by the three layers 8, 18, 19 which each have a thickness of (2n+1)#/4 and are alternately of high and low acoustic impedance e.g. Au, SiO 2  and TiO 2 . They are supported by a conductive structural member 6 which may be screw-threaded into one end of a cylindrical capsule 5. A conductive bellows 12 carrying a non-inductive point contact 13 is screw-threaded into the other end of the capsule. The capsule 5 may be mounted between the conductors 30, 31 of a strip line by means of which an r.f. output is derived from the oscillator.
Patent GB-360693-A (GB)
Title: Improvements in and relating to electrical, hollow, stranded conductors for electrical high tension lines
IPC: H01B5/10
Filed: 1930-11-25
Abstract: 360,693. Cables. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., Mulheim, Cologne, Germany. Nov. 25, 1930, No. 35441. Convention date, Nov. 25, 1929. [Class 36.] A hollow cable for the transmission of high tension currents comprises conductors which are stranded in one or more layers directly round a metal supporting member such as a bronze helix, and which individually consist of strands. The conductors may be of non-circular cross section.