baber/WOPTO huggingface dataset:
Patent GB-610990-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B21B37/46
Filed: 1946-04-18
Abstract: 610,990. Control of two D.C. motors. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 18, 1946, No. 11998. Convention date, Sept. 7, 1944. [Class 38 (iii)] Varying electromotive force.-Direct-current motors 13 and 19 respectively drive the horizontal main rolls and the vertical edger rolls of a reversible rolling mill, and means are provided to compensate for the reduction of thickness of the material being worked when it passes from the edger to the main rolls, such means being operable in accordance with the direction of rotation of the main mill motor and varying the speed of the motor 19 relative to that of the main motor. As shown, both motors are supplied from a variable voltage source, for example a Ward-Leonard generator, through a main reversing switch 22, which may be electromagnetically operated, and the armature of the motor 19 is connected in series with an auxiliary constant-speed generator 30. When the switch 22 is in the right-hand position, corresponding to the passage of the worked material from the edger rolls to the main rolls, an additional contact 35 on the switch closes to effect energization of a generator field winding 33 and increases the bucking voltage of the generator 30 to reduce the speed of the motor 19. In the reverse position of the switch 22, the field winding 33 is not energized and the motors 13 and 19 operate at substantially equal speeds. The motors may be provided with field windings 15 and 21 under the control of rheostats 27 and 28 which may be jointly adjusted. A rheostat 34, in series with the generator field winding 33, may be manually adjusted to allow for different reductions of the worked material. An additional generator field winding 32 is controlled by a rheostat 38 which may be adjusted to provide for different sizes of the rolls and wear thereof.
Patent GB-363270-A (GB)
Title: Improvements relating to tooth or other brushes
IPC: A46B3/16
Filed: 1931-04-23
Abstract: 363,270. Brushes. LECLERC, L. H. P., 15, Avenue Perrichon, Paris. April 23, 1931, No. 12026. Convention date, May 2, 1930. [Class 19.] Rubber securing means 5, 6 for holding bristles 4 in brush stocks are provided with collars 7 which are wedged into the stock by the bristles. In the modified form shown in Fig. 2, the bristle holder is formed conically at 8 instead of cylindrical as shown in Fig. 1.
Patent GB-380399-A (GB)
Title: Improvements relating to conical roller bearings and cages therefor
IPC: F16C33/54
Filed: 1932-04-27
Abstract: 380,399. Roller bearings. SKERRETT, H. N., 24, Temple Row, Birmingham.-(Timken Roller Bearing Co. ; Denber Avenue. Canton, Ohio, U.S.A.) April 27, 1932, No. 12058. [Class 12 (i).] A conical roller bearing has a roller spacing cage formed by two conical shells 8, 9 having pockets accommodating the rollers 2. The outer shell 9 has inwardly turned flanges 15, 17 at the ends. The small end 11 of the inner shell 8 abuts the flange 17, and the large end 10 has cylindrical outer and inner surfaces, the former fitting into the flange 15 and the latter riding upon a cylindrical portion 6 formed on the inner race ring 1. The flange 17 engages a cylindrical portion 7 of the race ring 1. The parts between the roller spacing bars of the small end 11 of the inner shell 8 are originally crimped and after assembly these parts are straightened out. A wear ring 20 is inserted between the roller ends and the flange 15.
Patent GB-450366-A (GB)
Title: Improvements in electric water heaters
IPC: F24H1/20
Filed: 1935-04-18
Abstract: 450,366. Hot-water cylinders ; supply arrangements. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and BARRIE, E., 240, Leeds Road, Fagley, Bradford. April 18, 1935, No. 12065. [Class 64 (i)] A thermostatically - controlled electric water-heating vessel 3 has a flat base plate 2, a dish-like member 1a secured to the top thereof to form a pocket 1 which cold water enters through a pipe 6, a thermostat 5 passing through the pocket and extending up towards the top of the vessel, a tubular casing 9 spaced round the thermostat and opening at the bottom into the pocket 1, and a downwardly turned pipe 10 leading incoming cold water which has passed over the thermostat down towards the base of the vessel. The electric heating element 4 is of considerably less height than the vessel, and the lower end 10a of the pipe 10 may be bent towards the element. The inlet pipe 6, the element 4, thermostat 5 and a siphon outlet tube 7 are mounted on the base plate 2.
Patent GB-592547-A (GB)
Title: Improvements in or relating to airspeed indicating instruments
IPC: G01P5/16
Filed: 1945-05-14
Abstract: 592,547. Electrical airspeed indicators. UTTLEY, A. M., SCRIMSHAW, F. H., and BONE, A. G. May 14, 1945, No. 12121. [Class 40 (i)] In an airspeed indicator the pressure from a pitot head is balanced against the pressure created by a fan, driven by a motor generator, in a differentially responsive pressure device which controls the motor part of the motor generator so that it hunts about a speed determined by the pitot pressure, a voltmeter associated with the generator 'indicating or recording the speed of the system. Figs. 1 and 2 show an arrangement for use in an aircraft in which the pressure from the pitot tube (not shown) is applied to the top compartment of chamber 15, which is divided by two diaphragms mounted on member 11. Air is impelled by fan 22, driven by motor 23, into the lower chamber 23, the middle chamber 16 being connected to the atmosphere, so that contacts 28 and 29 are closed if the thrust due to the pitot pressure exceeds that due to the fan pressure. These contact cut out a high resistance 37 in the grid circuit of valve 31 and apply a positive bias, so that the valve takes sufficient current through field coil 35 to start motor 23. The contacts open again when the fan speed exceeds a value determined by the pitot pressure, the motor hunting about this speed, so that voltmeter 47, connected to generator 30 mounted on the motor shaft, gives an indication of the pitot pressure and hence the speed of the system. Generator 30 has its field supplied from a voltage stabilised source through swamping resistor 43. Alternatively a current stabilised source may be used. The fan assembly is enclosed in a box of heat insulating material through which outside air is flowing. To facilitate rapid hunting, contacts 28 and 29 are rigidly mounted. Specifications 565,214 and 579,216, [Group XIX], are referred to.
Patent GB-540809-A (GB)
Title: Improvements in and relating to portable buildings and temporary structures
IPC: E04B1/32
Filed: 1940-07-26
Abstract: 540,809. Huts. NISSEN BUILDINGS, Ltd., and FOLKES, W. H. July 26, 1940, No. 12190. [Class 20 (i)] A portable building comprises spaced arched supports 3 interconnected by spaced purlins 4 disposed on the outside of the arched members and projecting radially therefrom and panel members of the correct size to fit in the spaces between the arched members and the purlins. The panel members are formed with wooden frames 5 covered with a sheet of waterproofing material 6 and are secured to the purlins at their corners by screw eyes 7 and washers 8. Strips of waterproofing material may also be placed over the joints. A dormer window 16 is provided resting on a sill 17 and covered by a panel 18.
Patent GB-271449-A (GB)
Title: Improvements relating to pneumatic dispatch and other conveying systems
IPC: B65G51/44
Filed: 1927-05-06
Abstract: 271,449. Akt.-Ges. Mix & Genest Telephon - und Telegraphen werke. May 22, 1926, [Convention date]. Addition to 270,718, [Class 40 (v), Wireless signalling &c.]. Counters for articles.-In a conveying system as described in the parent Specification in which the load is directed by the mutual effect of oscillatory circuits the stationary oscillatory circuits are energized by a coupling through the moving circuit. The stationary circuit may comprise the grid and plate coils 7, 5 of a valve 8 insufficiently coupled to cause oscillation, but so arranged that the circuit S on the carrier P sets up oscillation which is applied to an amplifying valve 10 through condenser 12 to operate a relay 13. The operation of the relay 13 may cause the bodies P to bring about the operation of means for counting them.
Patent GB-228052-A (GB)
Title: Improvements in arch supports
IPC: A43B7/22
Filed: 1924-05-19
Abstract: 228,052. Lewis, F. S. May 19. 1924. Foot-arch supports.-A foot-arch support con. sists of a plate 14 with upturned ends and a longitudinally disposed spring arch 16 to which is secured a member 18 to limit the flattening movement. The arch 16 is secured to a stiff leather shell 10. The member 18 is attached to the arch 16 by headed studs 19 as shown in Fig. 2, or three holes 20, Fig. 9, may be arranged at one end so that the distance between the fastenings may be varied. In a modification, Fig. 10, the openings in the member 18 are heart-shaped and the branch recesses 20<b>, 20<c> of one opening are at different distances from the end of the member. The transverse plate 14 and the arch 16 are, connected by a rivet and slot connection. A heel-correcting pad 24 is interposed between the leaves 25, 26 of the shell 10 and a pad 28 may be secured by rivets at the toe end.
Patent GB-1467103-A (GB)
Title: Heat hardening mixtures
IPC: C08G18/00
Filed: 1975-03-25
Abstract: 1467103 Heat hardenable resin dispersions CASSELLA FARBWERKE MAIHKUR AG 25 March 1975 [26 March 1974] 12408/75 Heading C3R Heat hardenable resin dispersions comprise (1) a liquid etherified methylolaminotriazine in which the degree of methylolation averages at least 50%, the degree of etherification of the methylol groups averages at least 70% and 20 to 80 mol. per cent of the etherifying groups are methyl or ethyl groups, the remainder being alkoxyethyl groups having alkoxy moieties with up to 4 carbon atoms, having dispersed therein (2) a solid resin which is an uncured mixture of (i) 30 to 45% by weight'of a polyester having a M.W. of 500 to 6000, an acid number below 20, an OH number of 400 to 800 and a softening temperature of 80 to 150 C., and being the reaction product of a mixture of isophthalic and terephthalic acids in which 10 to 90 mol per cent is isophthalic acid, and at least one saturated aliphatic polyol having 4 to 6 OH groups, and (ii) comprising the remainder, a polyisocyanate at least half of whose NCO groups are masked with a lactam, preferably epsilon-caprolactam, the resin being present in an amount from 20 to 500% by weight of the liquid. The polyester may be prepared using up to 30 mol per cent, based on the total polyol of an alkylene glycol whose OH groups are on non-adjacent carbon atoms and suitably is prepared from a mixture of pentaerythritol and 1,6-hexane diol. The polyisocyanate to be masked may be hexamethylene diisocyanate, methylcyclohexylene - 2,4 - diisocyanate, toluylene diisocyanate and isophorone diisocyanate. The liquid (1) is suitably an etherified pentamethylolmelamine and/or hexamethylolmelamine. Substrates may be coated with the dispersions which are subsequently cured at a temperature preferably between 170-200 C.
Patent GB-985930-A (GB)
Title: Method of preparing improved magnetic material
IPC: H01F1/33
Filed: 1962-03-30
Abstract: Single domain magnetic particles less than 800 <\>rA in diameter are formed by absorbing on to base particles or base layers of magnesia or alumina (or compounds of these with silica and zirconia) metal fluorides of ferromagnetic metals, especially of Co, Fe and Ni, and then reducing the coating to the metal under heating conditions which do not sinter the particles into sizes greater than the desired range.  The base particles are stirred with the metal fluoride solution for times up to three hours and temperatures up to 95 DEG C. to achieve particles having a surface metal content of about 30%. The particles may be dried and a second application made.  Two different metals may be applied either from a mixed solution or by two different applications. The base particles may be below 100 m  in size and have a length to width ratio of 20: 1.  It may be obtained by powdering or spray drying.  After agitation the particles are removed, dried in air and in H2 at 150 DEG  C. and finally heated in H2 at temperatures between 350 DEG  C. and 850 DEG  C. (a) to reduce the coating to metal, (b) to sinter the particles to the desired size.  This heating may take place in a magnetic field.  The temperature is limited to 850 DEG  C. to prevent chemical action between the base and the coating.  Times and temperatures are specified to give required size ranges. Particles below 100 <\>rA are magnetically soft; those between 100 <\>rA and 750 <\>rA are magnetically hard.  The magnetic particles may be cast into shape (pellets, beads, extruded shapes) and a plastic coating may be provided to prevent oxidation.  In forming a memory unit discrete areas of alumina are formed on a non-conducting base (glass, polyethylene, "Mylar" (Registered Trade Mark) by silk screen printing with an alumina sol.  The support is suspended in fluoride solution, removed, dried and reduced.  In making a magnetic record, tape, drum or disc, (a) particles may be mixed with a binder, e.g. butadiene acrylonitrile polymer; or (b) where the record support is heat resistant the particles may be formed directly on alumina on the support.
Patent GB-232427-A (GB)
Title: Improvements in temperature indicators and thermally-operated safety devices particularly for use on motor vehicles
IPC: G01K5/62
Filed: 1924-05-22
Abstract: 232,427. Johnson, J. Y., (Safe-T-Stat Co.). May 22, 1924. Engine stop-gear. - The apparatus is particularly intended for indicating the temperature of an internalcombustion engine and comprises a temperaturesensitive member located in the cooling-water circuit and controlling the current through a heating-coil surrounding the bulb of a thermometer on the dashboard. The temperaturesensitive element is also arranged to operate means for stopping the engine when the temperature becomes dangerously high. The temperaturesensitive member comprises a coiled bimetallic strip 24 the inner end of which is fastened to a screw 25 secured to a casing 26 which is attached by means of a strap 42 and bolt 46 to the pipe 11 through which the cooling water flows. The free end 28 of the strip 24 is formed as a switch-blade adapted to move over contacts 29, 30, 31 for indicating the temperature. A further contact 32 is provided which is connected either to the magneto &c. or to an electromagnet device for operating a valve to cut off the fuel supply, so that when the blade 28 moves on to this contact the engine is automatically stopped. In a modification, the temperaturesensitive element comprises a U-shaped bimetallic member the free end of which is arranged above three flexible contact arms on to which it closes when the temperature rises, so as to press the contact arms towards each other.
Patent GB-112597-A (GB)
Title: Improved Box for the Transmission of Sausages, Meats and other Goods.
Inventor: SLADE CHARLES HENRY
IPC: B65D6/00
Filed: 1917-09-03
Abstract: 112,597. Slade, C. H. Sept. 3, 191.7. Knock-down boxes for meat, sausages, &c. are made up of separable parts comprising side panels 2 grooved at 7 to receive the bevelled ends 8 of end panels 4. these side and end panels coming between a bottom panel 6 and n similar top panel (not shown), so that the flat faces of the panels 4 abut against the outer side edges of battens 9 on the inside faces of the top and bottom panels. The box, which is made of wood, is bound with string, the ends of which are held by a lead seal &c. The: parts may be piled flatways when the box is knotted down. The top and bottom panels are interchangeable.
Patent GB-1020497-A (GB)
Title: Anthraquinone dyestuffs
IPC: C09B1/60
Filed: 1964-03-25
Abstract: Dyestuffs of the formula <FORM:1020497/C4-C5/1> wherein X is hydrogen or alkyl of 1 to 4 carbons, are made by boiling a compound of the formula <FORM:1020497/C4-C5/2> with cyclohexylamine.  The dyes dye polyolefines from aqueous dispersion in blue shades.
Patent GB-748753-A (GB)
Title: Improvements in or relating to box-wrapping systems
IPC: B31B15/00
Filed: 1951-05-30
Abstract: 748,753. Conveyers. FOOD MACHINERY & CHEMICAL CORPORATION. May 30, 1951 [Aug. 28, 1950], No. 12709/51. Class 78 (1). [Also in Group XVII] In a machine for securing adhesively wrappers W to incomplete box bodies B, a pair of transfer members 57 reciprocate, one on each side of a vertically movable form block F, to draw the box, with the unfolded wrapper attached, from a conveyer C into the path of the block F. The block F forces the box and wrapper past devices for folding up the wrapper round the box and forms part of a machine M of the type described in Specification 516,779, [Group XVII], and U.S.A. Specification 2,074,561. The transfer members are connected by a bridge 58 and are reciprocated in guides 64 by a crank 117 through mutilated gears 109, 113 which give the members 57 a dwell in the retracted position. Locking elements 110, 115 prevent movement during the dwell. Operation.-The wrappers W are carried by the conveyer from a known gluing machine G to a point where the boxes B are positioned on them by hand. The combined box and wrapper are aligned by a stop 40 and come to rest against a stop 46 carried by spring-biased pivoted arms 48. The members 57 advance to force the box against stops 44a, 44b, the stop 46 being deflected by a rod 52 secured to the bridge 58. The members 57 embrace the box, spring-biased grippers 68 opening out behind it to force it against stops 67, and suction heads 73 engaging the forward flap of the wrapper. The suction heads have a wrapper-engaging surface to which the glue will not adhere, and for this purpose are wholly or in part formed from a polymer of tetra-fluoroethylene as further described in Specification 748,796. The box and wrapper are drawn beneath the former F, ejector stop 78 discharging a completed box stripped from the former in its previous upward stroke (see Fig. 21). The conveyer may have suction means to hold the wrapper and may be as described in U.S.A. Specifications 1,701,317 and 1,818,198. It may have a portion opposite the transfer members where the suction may be reduced, as described in U.S.A. Specification 2,425,210. This portion may be hinged back to give access to the folding devices of the machine M. Specification 518,736, [Group XVII], and U.S.A. Specification 1,772,344 also are referred to.
Patent GB-855755-A (GB)
Title: Fuel delivery system for internal combustion engines
Inventor: POWELL ROBERT JAMES
IPC: F02M69/50
Filed: 1959-04-15
Abstract: 855,755. Fuel systems. CONTINENTAL MOTORS CORPORATION. April 15, 1959, No. 12766/59. Class 7(3). A fuel delivery system for an internal combustion engine comprises a fuel tank 13 a fuel pump 25 for pumping fuel from the tank to the engine, a fuel conducting means connecting the intake side of the pump and the tank, a vapour separator 26 disposed in the conducting means upstream of the pump and comprising a casing 27 having a centrifuge chamber 35, a fuel inlet 34, a fuel outlet 36, a vapour outlet and means inducing a substantially rotary motion to fuel in the chamber to separate relatively lightweight vapour and heavier weight fuel by centrifugal force, a second fuel conducting means 49 connecting the outlet side of the pump with the fuel tank, the vapour outlet being connected to the second conducting means and means reducing pressure in the second conducting means at the junction with the connection from the vapour outlet to a valve below the pressure in the chamber, vapour being thereby extracted from the chamber into the second conducting means. As shown, the fuel system illustrated has an air induction system 10 including a throttle valve 11 and an intake manifold 12. The fuel system is preferably of the fuel injection type. The relief valve assembly is shown at 14. A metering device 15 is operatively connected to the throttle valve 11. A fuel distributing valve 17 distributes fuel to the injectors 18. The assembly 14 shown also as a unit in Figs. 2 and 3 comprises a conventional fuel pump 25, a vapour separator 26 and a conventional pressure relief valve 28. The inlet 34 is arranged to deliver fuel into the chamber 35 substantially tangentially with respect to the chamber wall and at a point near the upper end of the chamber 35 (Fig. 8). The fuel outlet 36 is also arranged substantially tangentially with respect to the chamber wall. The fuel vapour tends to collect in the upper central portion of the chamber 35. A portion of the high pressure fuel passes through the passage 43 causing vapour to be drawn from the chamber 35 through the passage 48 into the low pressure area of the jet syphon member 47. Fuel and vapour then pass out of the port 46 and through the conduit 49 to the fuel tank. In case of failure of the pump 25 the auxiliary pump 31 in the fuel tank will continue to supply the vapour separator chamber 35 and the by-pass valve 66 will open, permitting fuel to flow directly from the chamber 35 into the delivery conduit 41. A baffle element may be supported in the centrifuge chamber 35.
Patent GB-418906-A (GB)
Title: Improvements relating to seals for current leads into quartz vessels
IPC: H01J5/32
Filed: 1933-05-02
Abstract: 418,906. Sealing leading-in wires into vitreous envelopes. DEHN, F. B., 103, Kingsway, London.-(Claude Neon Electrical Products Corporation, Ltd.; 1128, Venice Boulevard, Los Angeles, U.S.A.) May 2, 1933, No. 12793. [Class 39 (ii).] A fine wire with a larger lead at each end is placed in a quartz capilliary which is heated to collapse the quartz about and entirely enclose the wire and after one end of the quartz has been fractured to expose one of the larger wires, an electrode may be secured thereto ; the unit so formed may be placed in a quartz vessel which is fused thereto and the quartz fractured to expose the other larger wire. As shown, a very fine tungsten wire 6 with a thicker piece of molybdenum wire 8 welded to each end is placed in a quartz capillary which is heated to fuse into a unit as shown in Fig. 3. The unit is then fractured to expose an end of the molybdenum wire which is then connected to a neon tube electrode 10 and this assembly is placed in a quartz tube to which it is welded to produce the article represented by Fig. 7. The quartz is then fractured to expose the other molybdenum wire.