baber/WOPTO huggingface dataset:
Patent GB-1426307-A (GB)
Title: Process for the purifiction of terephthalic acid dimethyl ester
IPC: B01D11/00
Filed: 1974-05-07
Abstract: 1426307 Purification of terephthalic acid dimethylester HOECHST AG 7 May 1974 [9 May 1973] 20038/74 Heading C2C A process for the purification of crude terephthalic acid dimethyl ester (DMT) containing substantially dimethylisophthalate (DMI), dimethylorthophthalate (DMO) and p-toluic acid methylester (PTE) as impurities comprises adding the crude DMT in the molten state with agitation to a solvent, the temperature of which is maintained above that of the highest melting eutectic of the system formed by DMT and the impurities and allowing pure DMT to crystallize from the saturated solution obtained. As solvents for the process of the invention examples are benzene and the homologues thereof, C 3  to C 10  aliphatic hydrocarbons, aromatic, aliphatic and cycloaliphatie alcohols, ketones, ethers, esters and acids. Methanol is the preferred solvent and mixtures of solvents may be employed.
Patent GB-851072-A (GB)
Title: Electrical connector
Inventor: ARSON SAMUEL LOUIS
IPC: H01R13/64
Filed: 1957-01-28
Abstract: 851,072. Two-part couplings. CANNON ELECTRIC CO. Jan. 28, 1957, No. 20079/60. Divided out of 851,055. Drawings to Specification. Class 38(1) The subject-matter of this Specification is identical with that described in Specifications 851,055 and 851,071 but the claims differ.
Patent GB-371695-A (GB)
Title: Improvements in or relating to the manufacture of ropes and rope strands
IPC: D07B1/02
Filed: 1931-07-13
Abstract: 371,695. Ropes. HOOD, HAGGIE, & SON, Ltd., R. and NICHOL, R. J., Rope Works, Willington Quay-on-Tyne. July 13, 1931, No. 20097. [Class 109.] In ropes wherein there is a reversal of the direction of twist in the successive portions which go to make up each strand, the yarns D, constituting the core, are three or four times as thick as the covering yarns C, B, and the lay of the core yarns is shorter than that of the complete strand.
Patent GB-273917-A (GB)
Title: Improvements relating to the starting and synchronising of rotary converters
IPC: H02K47/08
Filed: 1926-08-14
Abstract: 273,917. Alvey, G. B., Grime, R. E., and Mather & Platt, Ltd. Aug. 14,1926. Synchronizing d y n a m o -- electric machines. - Instead of polarizing a rotary converter b it is switched on to outgoing means g, h independently of its polarity by a polarized relay a connected across its terminals and controlling two main switches e, f, one or other of which is closed according to the polarity of the converter. These switches may be single pole and may be interlocked against simultaneous closure.
Patent GB-518964-A (GB)
Title: Improvements in or relating to gas turbine plant
IPC: F01D3/02
Filed: 1938-07-07
Abstract: 518,964. Elastic-fluid turbines; turbo-compressers. TALALMANYKIFEJLESZTO ES ERTEKESITO K. F. T. July 7, 1938, No. 20128. Convention date, July 7, 1937. [Classes 110 (i) and 110 (iii)] In a gas-turbine plant wherein a turbine 2 producing work at 15 is combined with a turbocompresser 1 for the working-medium of a combustion chamber supplying gas to the turbine, the blades 7, 9 of the rotor and casing of the compresser or the corresponding blades 8, 10 of the turbine are set at such angles that the working-fluid itself rotates at a relative velocity which is between 1/4 and 3/4 the difference between the velocities of the rotor and casing. The blades are thin sheet or aerofoil shape and their angles are measured between the base line of each blade on 'its concave side and the line representing the path of the blade ends, the rear end in the case of the compresser and the front end in the case of the turbine. Formulae are given for the limit values of the blade angles co-related to the speed of the rotor as in Specification 511,645. Specification 516,438 also is referred to.
Patent GB-1131004-A (GB)
Title: A constant pressure device for measuring the volume of gas absorbed or evolved in a chemical reaction
IPC: G01N7/14
Filed: 1967-05-02
Abstract: 1,131,004. Fluid-pressure gauges. SCOTTOMATIC INSTRUMENTS Ltd. May 2,1967 No.20232/67. Heading G1L. [Also in Division B1] A device for the determination at constant pressure of the volume of gas absorbed or evolved in a reaction vessel comprises flexible transparent or translucent U-tube 3 provided with guide slide 2, one end of the U-tube being attached to the reaction vessel (not shown) and the other end being free to move in guide 2, tube transporting means, for example drive wheel 5 to which the open end of the tube is attached at 6, and means for measuring the length of tube which has to be displaced to restore the pressure in the vessel to its original value after evolution or absorption of gas. In the embodiment shown, movement of knob (21) Fig. 2 (not shown) rotates drive wheel 5 to take up or release tubing from the movable limb of the U-tube until the levels of liquid in the two limbs of the U-tube are the same. Scale (22) which measures the rotation of wheel 5 can be calibrated to give directly the volume of gas evolved or absorbed in the reaction vessel. In an alternative embodiment a rack and pinion device may be used as the tube transporting means.
Patent GB-1448868-A (GB)
Title: Electromagnetic relays
IPC: H01H50/20
Filed: 1973-04-27
Abstract: 1448868 Electromagnetic relays PLESSEY CO Ltd 24 April 1974 20273/73 Heading H1N An electromagnetic relay has biased open movable tungsten contact surfaces 3, 4 formed as parts of respective magnetic core members 5, 6 having flanged ends 7, 8 to which resilient strip connections 9, 10 are attached and which are secured to an insulating base 11 such as a printed circuit board. The plunger type contacts are contained within the hollow interior of a coil 1 wound on a bobbin 2, and a curved screen 15 provides a return magnetic flux path as well as forming a housing for the coil and core members.
Patent GB-1508017-A (GB)
Title: Brakes for bicycles
IPC: B62L1/12
Filed: 1975-05-14
Abstract: 1508017 Slack adjusting for bicycle brakes YOSHIGAI KIKAI KINZOKU KK 14 May 1975 [28 Nov 1974] 20383/75 Heading F2E A slack adjusting mechanism for bicycle brakes operated by a hand lever 7 and Bowden cable 3 comprises a bell crank 26 which transmits excessive lever movement to a screw member 28 arranged, when rotated, to advance the receiver 22 for the outer sheath of the Bowden cable. As shown, lever 7 and bell crank 26 have a common pivot 6, one end of the crank is pivoted to the lever at 36 and the other end is pivoted at 40 to a pawl 27 spring biased into engagement with ratchet teeth 32 formed on screw member 28 between flanges 29, 30. If the application travel of lever 7 has been excessive, screw 28 is thus rotated during the release stroke to advance receiver 22; the latter is constrained against rotation by engagement of a projection 34 in a slot in housing part 8. The braking mechanism may be of the side-pull caliper (Fig. 1, not shown) centre-pull caliper, disc or cantilever type. The bell crank may merely be abutted by the hand lever and have a separate pivot therefrom (Fig. 6, not shown), the pawl-and-ratchet mechanism may be designed to effect adjustment on the application stroke (Fig. 7, not shown) and the receiver 22 may have an unthreaded portion designed to prevent its complete disengagement from housing part 8 (Figs. 8-10, not shown).
Patent GB-680344-A (GB)
Title: Flux composition
IPC: B23K35/36
Filed: 1949-08-05
Abstract: A flux, particularly for the welding or brazing of aluminium, magnesium or alloys thereof, comprises 20-30 per cent of cadmium chloride or of a mixture of cadmium and zinc chlorides, 25-30 per cent of lithium chloride, 7.5-10 per cent of sodium fluoride or bifluoride and the balance sodium and potassium chlorides; the zinc chloride content not exceeding 10 per cent and the total content of cadmium, zinc and lithuim chlorides being at least 50 per cent.
Patent GB-1107568-A (GB)
Title: A process for the preparation of ethylene-bis-dithiocarbamates
IPC: G01F1/64
Filed: 1965-05-14
Abstract: Ethylene-bis-dithiocarbamate derivatives of Zn, Mn and/or Cu are obtained by partially oxidizing an alkaline aqueous solution of sodium, potassium, ammonium, magnesium or calcium ethylene-bis-dithiocarbamate and, in a second step, precipitating the product with an aqueous solution of one or more water-soluble salts of the divalent metals Zn, Mn and Cu.  The oxidizing agent employed may be oxygen or air or an oxy-compound of chlorine, e.g. a hypochlorite or chlorine dioxide and preferably at least 1% of the solution of dithiocarbamate starting material is oxidized before the same is reacted with the zinc, manganese or copper compound.  The product may contain, as substrate, calcium sulphate, which product may be prepared by partially oxidizing an aqueous solution of calcium ethylene-bis-dithiocarbamate with an aqueous solution of a sulphate of at least one of the metals Zn, Mn and Cu.  The products are stated to possess fungicidal properties.  Reference has been directed by the Comptroller to Specification 1,000,137.
Patent GB-639221-A (GB)
Title: Aldehyde-phenol-phenol ether condensation products
IPC: C08G8/28
Filed: 1947-07-30
Abstract: In a modification of the process described and claimed in the parent Specification use is made as aldehyde of glyoxal or furfuraldehyde or a mixture thereof.  Samples have been furnished under Sect. 2 (5) of (1) a product obtained by condensing furfuraldehyde in presence of diethyl sulphate with a condensation product from phenol and the ethyl ether of cardanol; (2) a product obtained by condensing furfuraldehyde in presence of ammonia with a condensation product from phenol and the ethyl ether of allyl phenol; (3) and (4) products similar to (2), glyoxal being employed as the aldehyde.
Patent GB-149135-A (GB)
Title: Improvements in or relating to leggings
IPC: A41D17/02
Filed: 1919-02-12
Abstract: 149,135. Chamberlin, F. G. Feb. 12, 1919. Addition to 125,693, [Class 141, Wearing-apparel]. Top boots. - The legging L described in the parent' Specification is made as a part of or an extension of the upper of the boot X. The band B of the legging is wrapped around the ankle.
Patent GB-812126-A (GB)
Title: Improvements in or relating to the production of polymeric substances containing inorganic matter
Inventor: REDFARN CYRIL AUBREY
IPC: C08G8/00
Filed: 1954-07-14
Abstract: Modified polyphosphonitrides are obtained by heating a polyphosphonitrilic chloride with a polyhydroxy aromatic compound under anhydrous conditions.  The aromatic compound may be a partial ester with boric acid, with an inorganic phosphoric acid or a polyfunctional chlorine derivative thereof, or with phosphorus trichloride, which partial ester contains free phenolic hydroxy groups and which may be formed in situ.  The preferred polyphosphonitrilic chlorides are of low molecular weight and are crystalline or liquid.  If they are reacted with more than 75 per cent of a dihydroxy benzene or equivalent of other polyhydroxy benzene, the reaction is preferably not taken to completion, and the products are reactive with an aldehyde such as formaldehyde, acetaldehyde, metaldehyde, furfaraldehyde and paraformaldehyde, and with hexamethylenetetramine, trishydroxymethyl phosphine oxide, tetrakis-hydroxymethyl phosphonium chloride and trioxane, to give hard or rubbery cured resins.  With less than 75 per cent of dihydroxy compound, the reaction may be taken to completion yielding products which are not reactive to aldehydes.  A portion of the polyhydroxy compound may be replaced by a monohydroxy aromatic compound.  Examples of polyhydroxy compounds are hydroquinone, resorcinol, toluhydroquinone, diphenylolpropane, phloroglucinol, pyrogallic acid, di-o-cresylolpropane, catechol and commercial mixed dihydric phenols.  The reaction may be effected by heating the reactants alone or in a solvent such as tetrachloroethane, methyl ethyl ketone, xylene and butanol.  The products may be mixed with fillers, e.g. asbestos fibres, alumina, powdered graphite, powdered mica and silica, to give moulding compositions, or dissolved in solvents, e.g. ethanol or methyl ethyl ketone, to which tricresyl phosphate may be added, and applied as coating compositions for metals.  The products may also be used in laminates, abrasive elements, adhesives and impregnating compositions and for fireproofing.  Specifications 788,785 and 807,851 are referred to.
Patent GB-621965-A (GB)
Title: Improvements in and relating to building construction
IPC: A01G9/14
Filed: 1946-07-10
Abstract: 621,965. Greenhouses; garages; extensible buildings. CONCRETE PATENTS, Ltd., DANHOF, K. R., FUENTE, R. H., and FUENTE, N. C. July 10, 1946, No. 20661. [Class 20(i)]  The framework of a building, e.g. a greenhouse or garage, is made of interengaging preferably concrete elements joined by mortice and tenon joints (Fig. 31) so constructed that part of an element 1 which constitutes the tenon is only partly engaged by the morticed portion 3b of an associated element 2 whereby a further similarly morticed element can be placed in engagement with the tenon to extend the building lengthwise and wherein the frame elements forming the joint are held in position by connecting elements. These elements may comprise hooks 14, 15 in the ends of the gutters 2, 2, fitting over a pin 13 on the post 1. Grooves 16 are filled with caulking material to complete the joint. Ridge members 4 are extensible in a similar fashion, the tenon, in this case, being formed on a roof truss 3a (Fig. 29). Supporting posts 1 have recesses in which the ends of roof members 22 and sills 6 are housed, the members 6 and 22 also having recesses to house the ends of sashes 5. The ends of roof trusses 3a and roof sashes 3 are housed in recesses 12 in the gutter members 2 (Fig. 10), whilst the apices of sash members 3 are housed in slots 7a in the ridge members 4 (Fig. 29). Recesses on the outer, unengaged sides of the uprights 1 and gutters 2 may be provided for sideways extension of the building.
Patent GB-688026-A (GB)
Title: Improvements in weighing balances
IPC: G01G7/02
Filed: 1949-08-10
Abstract: 688,026. Electrical weighing apparatus. OERTLING, Ltd., L., HODSMAN, G. F., and. BROOKE, E. R. Aug. 10, 1950 [Aug. 10, 1949], No. 20767/49. Class 40 (i). In a precision balance the load is partly counterbalanced by the repulsion force exerted by a stationary alternating current excited coil J on a copper plate I carried by the beam A which plate has an anti-phase current induced therein by coil J. In the equilibrium position the current flowing through coil J, which is proportional to the counterbalancing force, is indicated either by a weight calibrated ammeter or by an indicating scale associated with the movable tap of the potentiometer which is used to vary the current in coil J. In the latter arrangement a linear scale is obtained by providing a square law winding on the potentiometer. In a modification, Fig. 3, in which a pair of pans are suspended from the beam A the plate I is dispensed with and coil J cooperates with one of the vanes E which reciprocate in cylinders F and damp oscillations of the beam. In further modifications described in the provisional specification only, the plate I is replaced by a short circuited coil and the force exerted between the members I and J is regulated either by varying the separation of the members or by variably interposing a metal screen therebetween.
Patent GB-1388086-A (GB)
Title: Power tool toys
IPC: A63H29/20
Filed: 1973-05-02
Abstract: 1388086 Toy power tools MATTEL INC 2 May 1973 [18 Dec 1972] 20770/73 Heading A6S A toy simulating a power tool has a housing shaped to represent the tool and containing a spring motor wound by a pull cord, the motor shaft having an eccentric mass which vibrates the housing as the shaft rotates, a manually operated detent stopping and releasing the shaft, a toothed wheel fast upon the latter being engaged by a leaf spring coupled to a diaphragm speaker which accordingly makes a rattling or buzzing noise. In one form, a toy simulating a hand-held power drill 10, Fig. 1, has a housing 45 in two parts, moulded from polyethylene foam, &c. A spring motor 23 is wound by pulling a knob 26 and cord 24, a step-up ratio idler pair 64, 66 mounted in the usual slots (72), Figs. 3, 4 (not shown), disengaging during winding from a driven gear 70 on an output shaft 14. A trigger 30 with an integral spring 50 pivots at 48 and is so biassed as to engage its end 46 with a gear 48 on the output shaft 14 and prevent unwinding. The front end 18 of the output shaft is formed to simulate a drill bit 22 and a chuck 20, the latter containing a weight 32 mounted eccentrically to the output shaft axis. When the trigger 30 is pulled, its arm 46 is withdrawn to a position 30a clear of the gear 40, the spring motor 23 rotates the output shaft 14 at high speed, and the eccentrically mounted weight 32 vibrates the housing 45, &c of the drill. At the same time, the gear 40 rattles over a spring-steel reed 38 connected to a speaker diaphragm 42 which amplifies the rattling sound produced and emits it through holes 44 in the housing. In another form, a simulated toy chain saw 100, Fig. 5, has a spring motor 108 wound by a pull cord 132, 136 so positioned as to simulate the starting cord of the saw, release of a trigger 120 permitting the motor to drive an output shaft 110 carrying an eccentrically mounted weight 111, which vibrates the whole saw. Simultaneously, a gear 126 on the output shaft rattles over a spring reed 114 connected to a sound amplifying diaphragm 118. The saw housing supports a simulated chain 104. A toy simulated food mixer 140, Fig. 7, has a spring motor 154 wound by a pull cord 156 and driving an output shaft 144 carrying four mixer blades 148, &c, two on one side of the shaft being thicker and heavier than the two on the other side of the shaft, Fig. 8 (not shown). Release of a catch 162, 164 against the biass of springs 166 allows the motor 154 to rotate the output shaft 144 so that the unbalanced blades 148, &c vibrate the housing 142 of the toy food mixer. At the same time, gear teeth 170 rattle over a reed 168 connected to a sound amplifying diaphragm 178.
Patent GB-155873-A (GB)
Title: Improvements relating to miners' electric safety lamps
IPC: F21L4/00
Filed: 1920-04-22
Abstract: 155,873. Haslam & Stretton, Ltd., and Jones, J. W. April 22, 1920. Battery lamps.-A miner's lamp comprises an upper portion a carrying a lens b and bulb c, and a lower portion containing a battery p. The bulb c is screwed into a holder c<1> which is carried by a rectangular frame c<2> fixed to the insulating plate d by a ring k as shown in Fig. 1<a>, the plate d being held in position by a screwed ring l. The centre contact of the lamp is connected through a spring f to a plate g in contact with one of the battery terminals, the circuit being completed by a switch r which can be brought into contact by a push r<2> with a metal tongue j connected to the other terminal of the battery. The lens b is held in place by a rubber ring b<2> and a rib a<2> on the casing. The upper and lower portions of the casing are locked together by a lead rivet q. Specification 147,994 is referred to.
Patent GB-1237681-A (GB)
Title: Electrical printed circuit assemblies
Inventor: WOOD PETER HENRY
IPC: H05K1/02
Filed: 1967-05-04
Abstract: 1,237,681. Brazing. JOSEPH LUCAS (INDUSTRIES) Ltd. 18 July, 1968 [4 May, 1967], No. 20795/67. Heading B3R. [Also in Division H1] In order to braze together two parts of a printed circuit assembly an electrical resistor is printed adjacent to the interengaging surfaces of the parts so that when a current is passed through the resistor brazing compound between the surfaces melts. A ceramic tile 10 provided with printed conductors 11 has a glass slide 12 carrying capacitors and resistors 13 connected thereto by wires 14. In order to encapsulate the glass slide 12 within an inert atmosphere a ceramic frame 15 is glass bonded to ceramic tile 10 and a ceramic lid 16 is secured to the frame 15 after the mounting of slide 12. The interengaging surfaces of the frame 15 and lid 16 are printed with a copper gold alloy which adheres to the ceramic and a brazing compound such as a tin based solder, gold tin or gold germanium alloy is applied between the surfaces. Lid 16 is printed on its top surface with an electrical resistor 11 having a configuration corresponding to the interengaging surfaces so that when a current is passed through the resistor local heating takes place to effect a seal. The resistor may be provided on the outside surface of the frame 15. Other parts can be joined by the method such as the connection of the glass slide to the tile 10 or the frame 15 to the tile 10.
Patent GB-1453803-A (GB)
Title: Device for conveying pneumatically a yarn at high speed
IPC: B65H51/16
Filed: 1974-05-10
Abstract: 1453803 Yarn conveyor RHONE-POULENC-TFXTILE 10 May 1974 [11 May 1973] 20834/74 Addition to 1380326 Headings D1F and D1J A yarn conveying apparatus comprises means for directing a stream of fluid through a yarn guide tube having a longitudinal slit 21, Fig. 4, extending along a downstream portion 6 of the tube and through which slit the yarn can be partially withdrawn and brought to a desired position on a yarn receiving means 16, a yarn cutting device (2), Fig. 1 (not shown), mounted in a non-slit upstream portion 4 of the tube the axis of which is at an angle to the axis of the downstream portion 6, and means 20 to withdraw the downstream end of the yarn connected to the receiving means 16 through the slit after the yarn has been cut. The guide tube is supplied with compressed air from a nozzle (1), Fig. 1 (not shown), and the device (2) is located near the upstream end of a portion 4 thereof and is of the type described in Specification 1404548. The tube portion 4 consists of two sections to form means (3) for allowing part of the compressed air to escape laterally as described in Application No. 44738/73. The portions 4, 6 extend from a bend 5. The yarn is wound with a traversing movement by a guide 12 onto a rotating support 16 to form a. bobbin 18. The tube portion 6 is extended by a yarn box 7 into which several similar tubes open. The box 7 is extended by a tube 9 for discharging to waste. The means 20 comprises a substantially triangular plate fixed to the portion 6 and having a guiding edge 17 part of which forms a hook 19. The plate 20 is located in a plane parallel to the traversing plane 24, Fig. 4, of the guide 12. Before starting winding, the yarn is guided through the tube, the box 7 and the tube 9 and is partially withdrawn through the slit 21 on the side 23, Fig. 4, of the plate 20. The guide 12 grips the yarn which, on arrival at the level of the end 25 of the plate 20, positions itself in the plane 24. When winding is complete and the yarn cut, the downstream end thereof remains trapped in the tube portion 6 and encounters the edge 17 and slides to the hook 19 which retains the yarn along a path 22 until it is wound up in normal turns on a bobbin 18.