baber/WOPTO huggingface dataset:
Patent GB-761459-A (GB)
Title: Improvements in or relating to the manufacture of permanent magnets
IPC: H01F1/06
Filed: 1953-09-08
Abstract: A permanent magnet is made by collecting freshly prepared metallic powder, the grains of which are of the size of colloidal particles, in an inert atmosphere and maintaining the particles in such atmosphere and in a dry state prior to and during compacting the powder, whereby spontaneous ignition is avoided.  The powder is mainly of iron, cobalt or nickel, and the inert gas may be nitrogen, carbon dioxide or argon deoxygenated by passage through alkaline pyrogallol.  A collection vessel containing iron powder obtained by heating ferric oxide in hydrogen, may be placed in a cube shaped aluminium container having on one side a detachable window of synthetic resin and on adjacent sides apertures fitted with rubber gauntlets to allow manipulation.  An inlet and outlet allow passage of nitrogen while the iron powder is transferred to a die inside the container and compressed by pressure applied to the die plunger through a steel block in a flexible tube at the top of the container. Alternatively an open topped container may be used when the inert atmosphere is maintained by the evaporation of pieces of solid carbon dioxide at the bottom of the container, or by filling the container with argon, which is heavier than air. A nitrogen filled container may be opened for manipulation. Specifications 590,392, 723,496 and 723,497 [all in Group XXXV] are referred to.
Patent GB-812674-A (GB)
Title: Temperature measuring device
Inventor: PLANER FELIX ERNEST
IPC: G01K13/06
Filed: 1957-08-08
Abstract: 812,674. Measuring temperature. ADDISON ELECTRIC CO. Ltd. Aug. 8, 1957, No. 24983/57. Class 40 (1). The temperature of a moving metallic object is measured by means of a roller in contact with the object, a brush bearing on the roller, a lead from the brush to a meter and a return lead to the object, the brush and lead being of a material having thermoelectric properties similar to those of the roller but dissimilar from those of the object; the E.M.F. generated at the " hot junction " (roller to object) gives a measure of the temperature of the object provided that compensation is provided for the effect of ambient temperature changes on the cold junction. In Fig. 1 a moving copper wire A1 has a nickel roller B1 in contact with it, a nickel brush C1 pressing on the roller in an axial position to collect the current. The current is led away by a nickel wire D1 to a bridge composed of three nickel-wire resistors E1, F1, G1 and a thermistor H1. The return circuit is wholly of copper via the meter M1, brush N1 and roller 01. The cold junction is thus at L1 and its temperature is sensed by the thermistor, so that variations of the ambient temperature alter the potential across the bridge which opposes the thermoelectric E.M.F., giving a true measure of the temperature of the wire. The current through the meter or the potential difference between C and N1 can be used for controlling, recording or giving warning signals, with or without amplification. Thus M1 can be a recorder or a galvanometer with adjustable contacts.
Patent GB-720181-A (GB)
Title: Improvements in or relating to a method of knitting
IPC: D04B1/26
Filed: 1951-10-25
Abstract: 720,181. Knitting. HEMPHILL CO. Oct. 25, 1951 [Feb. 16, 1951], No. 25028/51. Class 74 (2). A solid colour diamond fabric, for example, a leg of a sock, having the contiguous patterned areas joined by a suture, has the thread of a succeeding area BL knitted for a few wales in at least one course of the preceding area T with the yarn of that area. This arrangement secures the incoming and outgoing yarns and resists the possibility of the yarns pulling out to form a hole at the changeover point 4.
Patent GB-782783-A (GB)
Title: Improvements in or relating to apparatus for grinding a radius on a workpiece
IPC: B24B3/02
Filed: 1955-09-01
Abstract: 782,783. Grinding milling cutters &c. SCHEUBECK, O. Sept. 1, 1955, No. 25091/55. Class 60. Apparatus for grinding a radius on a workpiece, such as a milling cutter 7, comprises a rotary grinding element 14 mounted on a swivelling element 23. The workpiece 7 is carried by a bracket 6 arranged to be clamped by a device 8 and to swivel about a device 4 for clamping an arm 3 pivotally mounted at 2 to a base 1. The workpiece is held stationary during the grinding operation either by clamping it or by pressing one of the teeth against a pivotallymounted indexing finger 12 with the aid of a knurled disc 11. A compressed-air or electric motor 16 rotates the grinding element 14 which is carried by a stand comprising two parts 17, 18 adjustably connected by an arcuate guideway 19 to allow the inclination of the axis of the grinding element and hence the clearance angle of the cutter teeth to be varied. The stand may be adjusted by a screw 39 against the action of a spring 38 in a guideway 22 forming part of the swivelling element 23. Two stops 41, 42 adjustable in a circular guide 43 in the base 1 limit the arcuate movement of the element 23. To set up the apparatus to obtain the required radius, the finger 12 is removed from a bore 26 concentric with the pivot pin 24 of the element 23 and is replaced by a template having a right-angled notch 30. The template is displaced from the axis 25 by a screw 32 until a pointer 33 co-operating with a scale 34 shows that the corner of the notch is at the required radius from the axis 25 whereupon the workpiece is adjusted until its edges engage the sides of the notch in the template. After the finger 12 has been replaced, the screw 39 is adjusted until the grinding element 14 comes into contact with the workpiece when the swivelling element 23 may be oscillated between the stops 41, 42 to produce the desired radius. The grinding element is withdrawn from contact with the workpiece when the latter is to be indexed by rocking a hand lever 35 to a position d.
Patent GB-884580-A (GB)
Title: Polyepoxide compositions
Inventor: BRUNNER HENRY
IPC: C08G59/40
Filed: 1958-08-05
Abstract: A curable composition contains a polyepoxide and lithium borofluoride.  The preferred polyepoxides are polyglycidyl polyethers of organic dihydric compounds, e.g. epichlorhydrin/bis phenol A. Optional additives include epoxidized soya bean oil, phenyl glycidyl ether, TiO2, ZnO, methyl ethyl ketone, butanol, dibutylphthalate, di-2-methoxy ethyl phthalate and tricresyl phosphate.  Uses: Coatings; films; moulding; fillers; solders.
Patent GB-441641-A (GB)
Title: Improvements in or relating to drum filters or thickeners
IPC: B01D33/00
Filed: 1934-08-31
Abstract: 441,641. Filters. BLOMFIELD ENGINEERING CO., Ltd., Blomfield Street, New Broad Street, London, and DURANT, H. T., Kesters, Crawley, Sussex. Aug. 31, 1934, No. 25158. [Class 46] The stationary part of the distributing valve of a rotary suction filter has two compartments, each connected to its own vacuum pump and co-operating respectively in the formation and drying of the cake, and a third compartment through which water is supplied to wash the filter cloth after removal of the cake, and an extra pipe connection is provided from each filter section to the moving part of the valve to permit rapid displacement of air from the element by the water. Fig. 6 shows the stationary part 15 of the valve with vacuum compartments 14, 20, back-wash water compartment 26 and air vents 28, 27. The moving part 9, Fig. 5, of the valve has an outer series of ports 24 and an inner series 25, each filter element being connected to one of each series by pipes 8. Both series register successively with the compartments 14, 20 and the air vent 28, but while an outer port is registering with the compartment 26 the corresponding inner port is registering with the vent 27. The part 15 is pressed against the part 9 by a thrust ball race and a bell-crank lever with counterweight. The filtrate is withdrawn from the compartments 14, 20 through pipes 12, 16, Fig. 2, respectively by pumps 10 which deliver it to a tank 17, from which wash water is supplied to the compartment 26 through a pipe 34. The filter elements may be expansible to assist in loosening the cake and may be formed of layers of filter canvas, coconut matting, perforated steel plate, and sponge rubber or other resilient material. The cake may be removed by a driven roller 29 held against the drum by a spring or counterweight.
Patent GB-500746-A (GB)
Title: Improvements in the simultaneous recovery of fatty acids and nitrates
IPC: C07C51/02
Filed: 1937-09-16
Abstract: 500,746. Fatty acids and nitrates. JOHNSON, G. W. (I. G. Farbenindustrie Akt.- Ges.) Sept. 16, 1937, No. 25183. [Class 2 (iii)] [Also in Group III] Salts of fatty acids comprising preponderating amounts of fatty acids of high molecular weight, particularly alkali or alkaline earth salts, are decomposed with dilute nitric acid, the free fatty acids are separated, the aqueous solution is concentrated without previous neutralization and the crystallized nitrates are separated. The mother liquor remaining is added to a fresh batch of fatty acid salts before adding the nitric acid. Soap solutions obtained in any way, e.g. those formed by the saponification of naturally occurring fats with alkali or alkaline earth hydroxides, may be used for the process. Oxidation products of paraffin waxes which may also be derived from petroleum, tar or hydrogenation products of coals and the like, or products of the catalytic reaction of carbon monoxide and hydrogen without pressure, may be worked up in this way. Specifications 396,769 and 487,317, [both in Group III], arc referred to.
Patent GB-629607-A (GB)
Title: Mandrel bar support
IPC: B21B25/02
Filed: 1946-08-23
Abstract: 629,607. Rolling-mandrel carriages. AETNASTANDARD ENGINEERING CO. Aug. 23, 1946, No. 25269. Convention date, March 9. [Class 83 (iv)] In the production of tubes by skew-rolling over a piercing-mandrel, the mandrel is carried by a support movable over a run-out table and has an intermediate support movable with the end support but at half the rate. Fig. 1 shows the parts in the position for rolling, a reduced part 14 of the mandrel being over the support 12 so that free rotation of the mandrel is not impeded. In this position a projection 31 on the support 8 is engaged by a detent 30 to resist the thrust. A cable 16 is connected to the support 8 through a turn-buckle 27, and passes to a winch 18 motor-driven at 20, thence round a fixed pulley 19 and a pulley 21 on the carriage 10 to a turn-buckle 29. A second cable 23 connects the carriages 8 and 10 and is anchored at 26. On removal of the detent and operation. of the winch the carriage 8 is run out to withdraw the mandrel through the rest 9. A bevel 15 permits the mandrel to engage the support pulley 12 without shock.
Patent GB-1356882-A (GB)
Title: Overhead cable transportation systems
IPC: B61B13/06
Filed: 1972-05-30
Abstract: 1356882 Cable railways J G FIGARI 30 May 1972 [28 May 1971] 25310/72 Heading B7L In a cable railway, the cable 1 which constitutes the track on which the vehicles 16 run is divided into a series of sections, the ends of each section being supported by sustaining towers 2 spaced by 1200 metres at maximum, and the cable 1 may have maximum slopes of 1 in 10 and is subject to working tension produced by anchoring the ends of each section in large concrete footings 3 embedded in the ground, where seismic movements are unlikely, or by counterweights (4), Fig. 2 (not shown), hung from the ends of the cable sections where seismic movements may occur, the ends of each section of cable 1 passing over pulleys 5 which pulleys are fixed to the towers 2 at 45 degrees to the vertical, there being a second cable 7 vertically beneath the cable 1. The cable 7 is electrified, power being supplied at the ends of each cable section, so that together with the neutral formed by cable 1, a single phase power supply to a motor 10 of each vehicle 16 is effected. The motor 10 may alternatively be powered by batteries or accumulators carried in the lower part of the vehicle 16. Driven by the motor 10 via an axle 12 and chains 11 are the rear two of pulleys 9 which run on the cable 1 and are carried by a body 8 of the vehicle 16, thus propelling the vehicle along the cable 1. A lever arm 14, which is pivotally connected to the body 8, carries pulleys 13 which engage the lower cable 7 and a rod 15 by which a passenger car is suspended. In order to stabilize the vehicle 16, rod 15 is curved so that the weight of the passenger car provides a moment compensating for that due to the weight of the motor 10. Continuity of the track at the ends of sections of cables 1 and 7 is provided by rails 6 formed of metal beams joining these ends. The cable 1 may be aluminized steel cable with multiple strands and may be used to transmit signals of an electronic control system to control the operation of the cable railway.
Patent GB-206304-A (GB)
Title: Improvements in locks and latches
IPC: E05B65/22
Filed: 1922-09-20
Abstract: 206,304. Thompson, W. P., (Andersen, A. C.). Sept. 20, 1922. Latches, preventing operation of.-In a lock of the type in which the outside follower is locked against movement by a plate actuated either from the inside by a thumb-turn or from the outside by a keyoperated member, the thumb-turn is adapted to turn the locking plate positively either into its locking or non-locking position, whilst the keyoperated member and outside follower engage the plate at remotely situated points. The latch bolt f of the type described in Specification 203,532 is retracted from the inside by the pivoted lever d and from the outside by a follower h, an abutment i on which is engaged by an arm u on a locking-plate s, pivoted at t, to prevent operation of the follower h. The plate s is actuated from the inside by a thumb-lever n connected with the disc o, which has a cranked-portion p engaging in the hole r in the heel of the plate s, or from the outside by a slotted hub j operated by the square spindle of a pin-tumbler lock. The slot k in the hub j allows the hub to be rotated back to its original position to permit the withdrawal of the key without operating the plate s and also allows actuation of the plate s by the lever n without the barrel of the pin-tumbler lock being affected. An elbow on the spring v engages between the teeth on the disc o to hold the lever n yieldingly in either position.
Patent GB-707924-A (GB)
Title: Improvements in or relating to a method of preparing n-substituted morpholines
IPC: C07D295/023
Filed: 1951-10-31
Abstract: N-Substituted morpholines of general formula <FORM:0707924/IV (b)/1> and homologues thereof containing one or more methyl groups replacing hydrogen in the morpholine ring are prepared by heating and reacting one molar proportion of an aliphatic primary amine R-NH2 (R is an acyclic hydrocarbon radical containing from 10-20 carbon atoms) with from 2-5 molar proportions of a b  : b 1-dichloro-lower alkyl ether in the presence of an acid acceptor to neutralize the acid formed, and in the presence of water to dissolve the formed salt.  Specified amines are decyl, dodecyl, tri-isobutyl, cetyl, oleyl, stearyl, "soya alkyl," "coconut alkyl," lauryl, and particular acid acceptors are alkali metal carbonates and alkali metal hydroxides.  In examples: (1) laurylamine, b  : b 1-dichlorethyl ether, water and sodium carbonate are heated and shaken for 6 hours, solvents removed, salt separated and remaining N-lauryl morpholine distilled; (2) "soya alkyl" amine, water, dichloroethyl ether and soda ash are reacted as in (1) giving N-"soya" morpholine. "Soya alkyl" and "coconut alkyl" are mixtures of hydrocarbon radicals derived from natural fats and oils.  b  : b 1-Dichloroisopropyl ether is also specified as a starting material.
Patent GB-236788-A (GB)
Title: Improvement in electrical condensers
IPC: H01G4/30
Filed: 1924-10-27
Abstract: 236,788. Dubilier Condenser Co. (1921), Ltd., (Dubilier, W.). Oct. 27, 1924. Condensers.-A condenser casing is made from a pair of blanks of the shape shown in Figs. 4 and 5, the blanks being folded about the condenser in such a manner that they remain electrically separated, and form terminals for the condenser, while the condenser is almost completely enclosed. The condenser stack 1, of alternate conducting and dielectric sheets, is placed on the face 4b of one of the blanks, as shown in Fig. 5, and the projecting portions of the blank are folded along the dotted lines, so as to engage the upper surface of the stack at one of its edges at 5b, and at the two opposite corners at 12<b>, Fig. 2. The face 4<a> of the other blank is then placed on the upper surface of the stack, and the projecting parts folded over to engage the lower surface of the stack at the remaining corners and the opposite edge. The projecting portions 6<a>, 6b of the blanks are bent up to form terminals.
Patent GB-353297-A (GB)
Title: Improved weft-feeler for weaving looms
IPC: D03D51/34
Filed: 1930-08-27
Abstract: 353,297. Weft-feeler arrangements for looms. JAMIN, A. F., 12, Boulevard St-Julien, Petit Quevilly, Seine, France. Aug. 27, 1930, No. 25615. Convention date, Aug. 29, 1929. [Class 142 (iii).] The bobbin engages a flat bevelled face 1<1> or the end of a pivotec finger 1 held obliquely to the bobbin. Nor mally the bevelled face which is grooved or striated is engaged by the weft and the slide 6 on which the finger is pivoted moves against the action of a spring 9 and moves a hook 13. When only two or three turns of weft remain on the bobbin, the finger 1 turns against the action of a torsion spring away from an adjustable stop 3, and the slide 6, remaining in the position shown, fails to move the hook 13, and the weft-replenishing mechanism is thereby put in action.
Patent GB-270956-A (GB)
Title: Improvements in or relating to concrete slab structures
IPC: E04B1/04
Filed: 1926-10-14
Abstract: 270,956. Holloway, C. E. Oct. 14, 1926. Building slabs, special shapes of.-Concrete slabs, preferably reinforced, for building walls, silos, tanks, caissons, retaining walls, dams, chimneys, culverts, tunnels, and other structures are formed with enlarged edges c in which are grooves having a narrow entrance or neck and an enlarged portion d. The slabs abut together to form a space for keys which may be plastic concrete e containing reinforcements f, g, or preformed concrete keys. An additional element h, Fig. 4, may be employed to close the space.
Patent GB-742152-A (GB)
Title: Improvements in or relating to struts for showcards, picture frames or the like
IPC: G09F1/00
Filed: 1953-09-17
Abstract: 742,152. Struts for showcards &c. CHROMOWORKS, Ltd., and DOLT, H. G. Aug. 31, 1954 [Sept. 17, 1953], No. 25694/53. Class 52(3). A strut for a showcard, picture frame or the like 22 consists of a cardboard strip 1 scored transversely from each longitudinal side, the scoring lines 2, 3 extending to the central portion of an opening 12 having the shape of two truncated cones with their major bases colinear with the lines 2, 3 and prolonged by further truncated cones, the cut-out portion forming a tongue 18 bendable about a scoreline 11 and which engages the portion 17 of the opening 12 to lock the strut in position when bent about lines 2, 3 attachment to the showcard being by means of the shorter portion 21.
Patent GB-1135894-A (GB)
Title: Improvements in or relating to rotary electrical machines
IPC: H02K5/128
Filed: 1967-06-05
Abstract: 1,135,894. Sealing stators. MASCHINENFABRIK OERLIKON. 5 June, 1967 [9 June, 1966 (2)], No. 25785/67. Heading B3A. In a method of making a stator for a dynamoelectric machine encapsulated in a housing a spacer tube 1 is inserted in the bore of a wound stator 2 and the diameter of the ends of the tube is widened, so that the internal diameter d is equivalent to that of the rotor plus the required air gap. End members 3 are welded to the tube ends and are in turn welded to a cylindrical outer housing, the interior of the tube being then machined to the diameter d. The housing is filled with crystal quartz sand of 0À5- 4 mm. grain size through tubular stubs provided thereon and subjected to prolonged drying in vacuo. An epoxy resin mixture, which is resistant when cured to corrosive liquids, is introduced under vacuum through the stub tubes. Connecting leads pass through the stub tubes and a layer of elastomeric material, e.g. a cast .silicon elastomer, is placed at the tops of the tubes to allow for some flexibility in the packing where the leads emerge therefrom. Finally, the tubes are sealed with a grommet, e.g. of silicone impregnated glass fibre, which is pressed down on the elastomer. The stub tubes may alternatively be packed with a porcelain cement or other ceramic mass, which is impregnated in vacuo, for example, with paraffin wax or an epoxy resin. In an alternative construction a spacer tube 6 is fitted over a stator 7 and its diameter is reduced at the ends prior to welding discs 8 thereinto. The space within 'the tube is then filled as in the previous embodiment.
Patent GB-258383-A (GB)
Abstract: 258,383. March, E. July 13, 1925. Tickets, cutting-off and issuing.-In a ticketissuing apparatus the feed wheel i for the strip is driven by Geneva mechanism g operated by a pinwheel e connected with the guillotine lever n by means obviating risk of wrong assembly. In the construction shown, the operating crank is on a spindle a alternatively coupled by an axial sliding movement to one or other of the driving shafts h of two juxtaposed issuing machines. The shaft h is geared with a spindle f to which is secured the pin wheel e. An eccentric m is also mounted upon the shaft and its rod m<1> is pivotally attached to the lever n centred at o and carrying the knife p.
Patent GB-502867-A (GB)
Title: Improvements in or relating to portable gas heaters
IPC: F24C15/24
Filed: 1937-09-23
Abstract: 502,867. Incandescent gas fires radiants. SOUTH METROPOLITAN GAS CO., and PRESTAGE, A. J. Sept. 23, 1937, Nos. 25859/37 and 16151/38. [Class 126] A detachable radiant unit for use in a gas fire comprises a metal carrier frame 7, 8, 9 which can be detachably mounted in the fire, and a series of spaced, ceramic rods 6, tubes, or rings mounted directly but loosely in the frame. In the form shown in Fig; 3, the frame comprises bars 7 connected by end bolts 8 with spacing tubes 9. The rods 6 may be of magnesium clay. Alternatively, the rods may form a cylindrical or other hollow body into the interior of which the burner flames are projected, or the radiant may be composed of rings with projecting lugs held by grooved members. The radiant is mounted in a gas fire, Fig. 2, comprising end plates 1 jointed by rods 13 and side plates 2, a burner 4 fed through a cap piece 29 from a mixing tube below it, a reflector 15, and a detachable guard cage 3. In another form, Fig. 6, the guard cage 16, 17 is attached to the bars 7, 8<1> of the frame of the radiant. The second Provisional Specification describes also mounting ceramic rods in holes in spaced annular flanges on a burner nozzle, and mounting ceramic rings with projecting lugs on grooved arms on a burner nozzle.
Patent GB-388688-A (GB)
Title: Sewing machine driven by an electro-motor
IPC: D05B69/18
Filed: 1932-09-17
Abstract: 388,688. Sewing-machines. GONYK, I., 64, Rennweg, Vienna. Sept. 17, 1932, No. 25889. Convention date, Sept. 19, 1931. [Class 112.] A machine driven by electromotor is provided with a kneecontrolled rheostat lever which can be sunk into the interior or base of the machine when not in use. As illustrated, the usual resistance controlling rod 4 is connected by a chain 5 to a grooved wheel 6. This wheel is mounted to revolve on a tube 10 sunk into the base 1 and is rotated by a projection 16 carried by a cylinder 14. This cylinder is in turn rotated by the telescopic knee lever 18, 20 to which it is articulated at 15. The knee lever 18, 20 can be telescoped into the cylinder 10 when not in use.