baber/WOPTO huggingface dataset:
Patent GB-133581-A (GB)
IPC: G01P3/18
Abstract: 133,581. Henke, H. W. Feb. 3, 1919. Centrifugal speed indicators. - A spring- controlled frame 12 carrying weights 13 and pivoted within a vehicle-rotated frame 6 has a radial arm 18 provided with a plate 21 adapted to move in its own plane and also in a direction at rightangles to a plunger 22 connected with the pointer. In the form shown, the parallelism of the plate is obtained by mounting it on a spindle 20 adapted to be turned by gear wheels 19, 17 and a relatively stationary wheel 16. In a inodification, the gearing is dispensed with and the plate is guided by engagement with a fixed arm. The connexion between the plunger and pointer comprises a rack engaging a pinion 25 mounted on an adjustable screwed spindle 26. From the spindle the movement is conveyed through an adjustable link 31 and slotted plate 32 to a toothed sector in mesh with a pinion on the spring-controlled pointer spindle 39.
Patent GB-611569-A (GB)
Title: Door stop
IPC: E05C17/44
Filed: 1946-05-02
Abstract: 611,569. Door holders. BLOOMFIELD, S. May 2, 1946, No. 13368. [Class 65 (i)] A door holder comprises a pair of tubular telescopic members 18 and 20 containing a spring 30 which urges the members apart. The member 18 is pivoted at 22 to a bracket 14 adapted to be secured to the door 10, while the outer end of the member 20 is adapted to engage the floor 42 to hold the door in any desired open position. Lugs 32 formed on member 18 engage slots 34 formed in member 20 to limit the relative movement of the members.
Patent GB-497259-A (GB)
Title: Improvements in or relating to the armouring of electric cables
IPC: H01B7/18
Filed: 1937-05-11
Abstract: Single conductor lead sheathed armoured cables for use in alternating current systems, which are to be laid with their centres spaced not more than 6 inches apart, are armoured with a non-magnetic copper alloy having a resistivity of 23-33 microhms per cm. cube and specified tensile strength and elongation.  The alloy may consist mainly of copper, manganese, and silicon, for example 96,1 per cent of copper, 0,74 per cent of manganese, 2,78 per cent of silicon, and 0,38 per cent of other elements including tin.
Patent GB-149465-A (GB)
Title: Improvements in self opening threading dies
IPC: B23G5/12
Filed: 1919-05-28
Abstract: 149,465. National Acme Co., and Smith, O. A. May 28, 1919. Screwing die-heads.-A die-head arranged for self-opening in either direction for right or left hand threads comprises a shell 15 with a floating drive at 31 from a shank 34 as permitted by springs 36. When feed is arrested, the body 2 continues to advance, compressing springs 30 until pins 22<1> in the body are disengaged from recesses in a plate 17 secured to the shell. Relative rotation then occurs under the threading torque, assisted by a spring (not shown). Springs 10 retract the chasers 6 as soon as they are free from the double-acting cams 13 carried by a. ring the set portion of which is determined by a lug and set-screws 28. The chasers carry back plates 7 serving for guiding in T-slots in the body.
Patent GB-618520-A (GB)
Title: Improvements in or relating to electric-motor-driven fuel pumps for aircraft
IPC: F02M37/08
Filed: 1946-05-03
Abstract: 618,520. Screw pumps. SELF-PRIMING PUMP & ENGINEERING CO., Ltd., TULL, W. C., and McKEAN, J. A. May 3, 1946, No. 13529. [Class 110 (i)] [Also in Group XXXV] The casing of an aircraft fuel pump is sealed into an aperture in the fuel tank and its driving motor is supported by a quick-release connection outside the tank. As shown, the motor 2 is secured to a flange 20 on the pump body 1 by the axial pressure of a spring 19 on bayonet connections 17, 18, a flexible coupling 21 having radially sprung keys 22 simultaneously connecting the drive to the pump spindle 7. The connection can be additionally secured by spring-pressed plungers (not shown). The impeller 10, which. may comprise one or two stages, is enclosed in a filter 13 within the fuel tank sump 6, a gland 11 and thrower ring 12 preventing leakage of fuel along the spindle. A cone 16 surrounds the inlet to the impeller and serves to separate air and vapour from the liquid pumped, whilst a byepass valve 15 permits fuel to be drawn from the tank when the pump is not working. Specifications 293,081, [Class 35], 518,472, [Group XXXV], 607,830, 608,121, 610,104 and 618,534, [both in Group XXIV], are referred to.
Patent GB-666518-A (GB)
Title: Improvements in or relating to thermionic cathodes
IPC: H01J61/067
Filed: 1949-05-20
Abstract: 666,518. Cathode materials and processing. GENERAL ELECTRIC CO., Ltd., and ROOKSBY, H. P. May 5, 1950 [May 20, 1949], No. 13560/49. Class 39 (i). The metal parts of a thermionic cathode carry electron-emissive material which comprises barium orthotitanate. Specified proportions of barium carbonate or barium peroxide and titanium dioxide with gum tragacanth are extruded, and the rods are heated in magnesia trays in molybdenum boats passing through a furnace in a hydrogen atmosphere so that a temperature of 1400 C. is reached in 7 minutes and maintained for 10 minutes. In a modification, a specified proportion of strontium carbonate is added to the mixture such that the product contains strontium orthotitanate in solid solution. The rod may be supported by a surrounding tungsten helical heater and used in high-pressure metal vapour lamps. Specifications 577,599 and 594,059 are referred to.
Patent GB-744922-A (GB)
Title: Improvements in or relating to two-speed driving arrangements
Inventor: NAMENYI-KATZ LASZLO
IPC: G11B19/265
Filed: 1953-05-14
Abstract: 744,922. Two-speed friction gearing. EPSYLON RESEARCH & DEVELOPMENT CO., Ltd. May 14, 1954 [May 14, 1953], No. 13573/53. Class 80(2) A friction disc (or toothed wheel) 20 is mounted on a spindle 18 carried by an arm 17 engaging a bushing 16 which is in frictional contact with a collar 13 fixed to the spindle 11 of a driving electric motor 10. A member to be driven, e.g. a gramophone turntable, has a pair of concentric annular surfaces 12, the spindle 11 being appproximately midway between such surfaces. When the motor 10 rotates in one direction, the arm 17 moves in the same direction until the rim 21 of the disc 20 engages the outer surface 12, whereupon the turntable is driven at a relatively low speed. If, now, the electric motor is reversed, the arm 17 swings so that the rim 21 engages the inner surface 12. In this case the turntable is driven in the same direction as before but at an increased speed. As shown, the frictional connection between the collar 13 and bushing 16 comprises a felt pad 15. The pressure may. be varied by an adjusting screw 25 screwed into a frame 22 carried by the arm 17 and bearing upon a spring plate 23. The latter engages the end of the motor shaft 11 and is secured to the frame 22 but spaced therefrom by washers 27.
Patent GB-552579-A (GB)
Title: Improvements in or relating to chain or conveyor links
IPC: F16G13/02
Filed: 1941-10-22
Abstract: 552,579. Making chains and coupling hooks. CHERRY-BURRELL CORPORATION. Oct. 22, 1941, No. 13604. Convention date, April 28. [Class 83 (ii)] Chain links, particularly for conveyer chains that are driven by sprockets engaging openings 11 and having hook portions 76 that engage integral crosspins 21 are formed by forging in dies with the hook disposed as shown in Figs. 1 and 2, to permit production in two-part dies that meet along the line 28. The hook is afterwards twisted in tong dies to the position shown in Fig. 6. The links have side lugs 14 bevelled at 15 that engage guide ways particularly where the chain passes round lateral curves, the links being bevelled fore and aft at 27 to permit such passage. The links also taper upwards and downwards from the parting plane of the dies to provide the necessary draft which is also provided at 13 and 23. A concavity is provided at 20 to facilitate assembly of the chain. The bar end or blank is first roughly formed, the dies are then further closed to make the impression of the link and finally closed to complete the forging. Whilst still hot the flash is removed in trimming dies and the hook is twisted. The link is finally brought to pitch in gauging dies and is heat treated, quenched, and drawn to about 400 Brinnel hardness when the material is electric furnace, cold melt fine grain manganese steel. In a modification work-hardening material is employed.
Patent GB-680434-A (GB)
Title: Method of manufacturing fire detector and other cables
IPC: H01B13/18
Filed: 1949-05-21
Abstract: 680,434. Fire alarms. PETERS, M. F. May 21, 1949, No. 13621/49. Class 118 (i) [Also in Group XXXVI] A flexible cable having one or more conductors is provided with beads 40 secured at intervals to the conductors, the beads having a resistance which decreases with rise in temperature. The beads are made by first covering the conductors with a solid cylindrical continuous mass of material containing two ingredients one of which is removed by a subsequent heating process, the other fusing and contracting to form a succession of separated beads. In an example a mixture of feldspar, flint, borax, soda ash, sodium nitrate, fluorspar and oxides of cobalt, nickel and manganese is melted, poured into water and ground in a ball mill. The powder is then mixed with a ceramic material such as steatite and a material such as flour which will be removed by the heating process. Water is added to the powdered mixture to form a plastic mixture which is extruded round the conductors. The extrusion may be carried out by the apparatus shown in Fig. 1 in which the plastic mixture passes from a hopper 2 through an orifice 4 through which the conductors are led directly to a drying furnace 10 to remove moisture and give cohesiveness to the extruded material. The cable is now in the form shown in Fig. 3 and may be elliptical in crosssection. The cable is now baked at a high temperature, e.g. 1600‹ F for about two days which causes the extruded material 20 to shrink into separate beads 40 fused to the conductors. When cool, the conductors with their beads are enclosed in a metal protective casing. In another method the oxides or other materials that cause the resistance of the beads to fall with rise in temperature are not included in the plastic mixture which may consist for example of steatite and flour which when heated to 1800‹ F forms porous beads on the conductors. The beads are then impregnated by dipping in a solution of iron or zinc chloride or sodium dichromate, and again baked to convert these materials into oxides. In another method organic metal compounds such as tetra ethyl lead are mixed with steatite or aluminium oxide and extruded round the conductors. The subsequent heating process converts the metal compounds into oxides.
Patent GB-234523-A (GB)
IPC: H02K9/04
Filed: 1925-05-25
Abstract: 234,523. Akt.-Ges. Brown, Boveri, et Cie. May 24, 1924, [Convention date]. Exciting; dynamos, cooling.-A ventilating fan and exciter are driven by the same auxiliary motor, which may also arive a cooling water pump, condenser pump, &c. The motor may consist of an electric, motor and turbine, the latter normally running idle but being brought automatically into action if the electric motor fails by means of a governor controlling the steam supply.
Patent GB-742248-A (GB)
Title: Improvements relating to ovens and drying apparatus
IPC: F26B3/30
Filed: 1952-05-29
Abstract: 742,248. Bakers' ovens. WHITWORTHS HOLDINGS, Ltd., and STEINER, E. R. May 19, 1953 [May 29, 1952], No. 13652/52. Class 51 (2). [Also in Group XIII] The heating or cooling arrangement of a bakers' oven or of drying apparatus comprises a number of inlet ducts or channels of substantially rectangular cross-section and wedge-shaped in plan, the broader ends of the ducts or channels being open to admit heating or cooling gases, a number of outlet ducts or channels of substantially rectangular cross-section and wedgeshaped in plan, located alternately with the first mentioned ducts or channels with their narrow ends adjacent to the broader ends of the first mentioned ducts or channels, the broader ends of such outlet ducts or channels being open to allow escape of gases therefrom, the gases being allowed to flow in a turbulent manner from one duct or channel to an adjacent outlet duct or channel over one or both of the longitudinal edges of a partition between them. Fig. 1 shows a heating or cooling element assembled as above to form a rectangular duct having a diagonal baffle AFKJ extending for less than the full height of the duct, in order to create the turbulence in the gases passing through. A modified element, Fig. 2 (not shown), has the baffle spaced from both top and bottom of the duct. A bakers' oven, Fig. 3, comprises heating elements 2, 3 and 4 supplied with hot gases from a combustion chamber 7 by a fan 8 through a header 10 or an opening 5, the said gases being vented either from a header 11 or an opening 6, partly to a chimney 12, and partly back to the combustion chamber 7 through slots 16 controlled by a sleeve 15 actuated by a rod 17. In a rotary drier, Figs. 6 and 7, the charge material is dried on the outer surface of a rotary drum 22 spaced from a stationary, refractory-lined drum 20, which is formed with fins 21 extending towards but not touching the rotary drum 22, and forming therewith a series of heating elements according to the invention. Disposed inside the drum 20 is a combustion chamber 7 fired by a gas burner 17 and having a slotted sleeve 15 controlling recirculation ports as in the previous embodiment, a bulkhead 13, and a fan 8 driven by a motor 9. Hot gases from the combustion chamber are driven by the fan out of the left-hand side of the drum 20 into the heating elements, from which part passes through a perforated plate 32 into a flue 33, and part is re-circulated to the combustion chamber under control of the sleeve 15.
Patent GB-307657-A (GB)
Title: Improvements in fireplace air-heating fittings
IPC: F24B1/188
Filed: 1928-05-09
Abstract: 307,657. Haynes, F. G. May 9, 1928. Open fireplaces; air-heating fittings.-An airheating fitting for an open fireplace comprises a metal body 18, a pair of forwardly or rearwardly extending and laterally-spaced cold air inlets 19, a pair of forwardly-extending hot air outlets 20. and baffles 21 within the body causing the entering air to circulate laterally towards the centre before passing upwardly. In a modification the centre portion of the top of the body is of reduced height to form a passage for the gases passing to the flue.
Patent GB-179963-A (GB)
Title: Improvements in or relating to grates for furnaces and the like
IPC: F23H3/02
Filed: 1922-05-15
Abstract: 179,963. Gerken, P. L. Meurs-, and Naamlooze Vennootschap tot Exploitatie van Octrooien Meurs-Gerken en K. Weiss. May 14, 1921, [Convention date]. Fire-bars and grates.-In inclined stepped grates of the type having longitudinal bars with stepped' fuel-supporting surfaces mounted in a tiough, the bars d comprise thin plates set on edge and having saw-toothed upper surfaces and held in position by hooks e, f which engage with transverse bridges b, c. To facilitate the removal of the bars d in a group, they may be mounted in a frame h. The webs k of the bars d are tapered and the bars are spaced apart to form longitudinal slots for the passage of air or provided with tapered recesses m, n at their sides forming air passages which discharge vertically and horizontally into the fuel bed. Instead of mounting the bars in a trough, they may be arranged in a frame a, Fig. 5, open at the bottom and secured together by a bolt o. The plates a can be made or arranged so that transversely of the grate the adjacent parts are of different heights.
Patent GB-1098415-A (GB)
Title: Power-assisted steering with adjustment of power participation
IPC: F16F9/22
Filed: 1965-03-31
Abstract: 1,098,415. Power-assisted steering mechanism. P. L. GARCIA. March 31, 1965 [April 13, 1964], No. 13698/65. Heading B7H. Power-assisted steering mechanism for a motor vehicle includes means operable whilst the vehicle is in use for adjusting the precompression of spring means which determines the degree of effort applied to the steering wheel before the power-assistance becomes operative. A series of disc springs 39 arranged to resist relative axial displacement between a nut 21 on a screwed spindle 6 connected to the steering shaft and a piston 15 linked to a shaft 10 coupled to the steerable wheels is adjustably pre-compressed by male and female nuts 42, 43 which are connected by longitudinal splines 44 so as to be conjointly rotated by a pinion 46 meshing with teeth 45 on the female nut 42 and are in respective screw-threaded engagement with a tubular body 19 attached to the piston 15 and a tubular member 23 attached to the nut 21. The pinion 46 is displaceable with the nut 21 along a splined spindle 48 rotated by driver-operated control mechanism. The disc springs 39 are graduated in size to provide a progressive spring rate as successive elements are compressed. Pressure fluid supplied through an inlet 28 to a chamber 31 on one side of the piston 15 flows when the mechanism is in the straight-ahead position through ports 36 in the piston 15, past ports 33 communicating with a chamber 30, the other side of the piston, through ports 38 in a valve core 24 carried by the tubular member 23 and to a discharge chamber 32 through the interior of the spindle 6. A distributer 25 mounted between the tubular body 19 and member 23 with provision for limited axial displacement is moved relative either to the body 19 or member 23 and against the action of springs 26, 27 upon steering in either direction to cover the ports 36 and increase pressure in the chamber 31, or to cover the ports 38 resulting in incresaed pressure on the larger piston area exposed to the chamber 30. " Feel " is provided by annular chambers 34, 37 containing pressure fluid which exerts on diametral steps in the core 24 and distributer 25 pressures equal to those exerted on the piston faces. In another embodiment (Fig. 6, not shown), a cam ring replacing the nuts 42, 43 is rotatable by the pinion 46 into three positions of adjustment in which either one, two, or three sets of coil or disc springs arranged in series in place of the springs 39 are operative.
Patent GB-1528663-A (GB)
Title: Method for fabricating an electrochemical cell
IPC: H01M6/18
Filed: 1976-04-05
Abstract: 1528663 High temperature secondary cell ESB Inc 5 April 1976 [9 June 1975] 13712/76 Heading H1B A high temperature secondary cell is prepared by changing a positive reactant mixture, e.g. sodium chloroaluminate, B, Si, Se, As, Te, Sb and/or ethylene glycol into a positive reactant compartment 13 of a cell separated by # alumina 22 from a negative compartment 10 containing sodium. The cell is maintained at an operating temperature of 150 to 225 C. during changing and the positive reactant mixture may be prepared either outside the cell or in situ.
Patent GB-387993-A (GB)
Title: Improvements in electric discharge tubes or lamps
IPC: H01J1/14
Filed: 1931-05-08
Abstract: A colloidal suspension to be sprayed on to an electrode of an electric discharge tube is obtained by grinding barium superoxide in suspension in amyl acetate, preferably with an addition of a small quantity of celloidin in acetone, until the diameter of the particles is 0\sr004 mm. or less, at which state of division the Brownian movement is exhibited.
Patent GB-276731-A (GB)
Title: Improvements in electrically operated surgical outfits
IPC: A61C1/00
Filed: 1926-05-31
Abstract: 276,731. Whiteside, H. A. May 31, 1926. Drawings to Specification. Dental and like engines. - An electricallydriven dental or surgical drill outfit comprises a foot-operated speed-regulating controller with flexible connections to an electric motor incorporated in a hand tool-holder for the drill. The controller may have automatic means for varying voltage or resistance in the motor circuit, thereby tending to keep the speed of the drill constant as the load varies. An automatic cut-out breaks the motor circuit in the event of the load increasing beyond a limit. The drawings and detailed description relate to the electric control arrangements.
Patent GB-217229-A (GB)
Title: Improvements in headlights for motor and other vehicles
IPC: F21S8/10
Filed: 1924-06-05
Abstract: 217,229. Etablissements Besnard, Maris, et Antoine. June 8, 1923, [Convention date]. Vehicle lamps; mounting electric lamps in lanterns.-In a vehicle headlight a spherical reflector 3 having a diameter at least equal to its radius of curvature is so mounted that its axis of revolution x, x is inclined to but in the same vertical plane as the axis y, y of the lamp. The luminous source such as an electric lamp bulb F is situated on a horizontal radius midway between the centre of curvature C and the reflector 3 so that part of the light will be projected forwardly for long distance illumination, and part will illuminate the sides of and in front of the vehicle. The electric lamp bulb F is mounted vertically or inclined and is adjustable longitudinallv by a device on the lamp or from the driver's seat by mechanical or electromagnetic means so that the centre of the luminous source may be raised from the position shown in Fig. 2, to a position 2. Fig. 4, in an inclined radius z<2> z<2> in order to reflect all the light downwardly. Alternatively use mav be made of an electric lamp bulb having two independently controlled filaments, the one for intense illumination being situated on the horizontal axis z<1> z<1> and the one for non-dazzling illumination being situated on the inclined radius z<2> z<2>.
Patent GB-770506-A (GB)
Title: Improvements in pinch valve
IPC: F16K7/04
Filed: 1955-05-12
Abstract: 770,506. Valves. FARRIS, V. W. May 12, 1955 [Feb. 7, 1955], No. 13782/55. Class 135. A pinch valve comprises a flexible conduit 15, a pair of jaw members 24, 25 operatively interconnected for simultaneous movement toward and away from each other and engaging the conduit at diametrically opposed points, a unitary valve body surrounding the conduit and jaw members and forming with the exterior of the conduit a space to hold fluid, means such as wedges 16 for forcing the outer ends of the conduit into contact with the adjacent parts of the valve body, and the fluid receiving space surrounding the conduit 15 is connected by a passage 40 with the pipe line on one side of the valve so that the conduit 15 will be balanced in respect of the pressures on the inside and outside thereof. The ends of a pair of chains 26 are connected respectively to the two jaws 24, 25 and when a screw 32 which abuts against the jaw 24 is advanced by rotation of a nut 33, the two jaws will move towards each other and collapse the conduit 15. Gaskets 20 are inserted between the wedges 16 and the end faces of the flanges on the valve casing.
Patent GB-167867-A (GB)
Title: Improvements relating to ovens and machines for making bread and the like
IPC: A21B3/07
Filed: 1920-05-20
Abstract: 167,867. Brown, C. May 20,1920. Proving-appliances; setting and drawing appliances for ovens.-A tending-device applicable to dough-proving, baking and like machines comprises two parallel endless chains 3 passing over sprocket-wheels 4, sections 1, 2 pivoted to the chains at 5, which sections form the surface of the conveyer, a second endless conveyer travelling at right-angles to the chains 3 and carrying trays 15, and means whereby either or both of the sections 1, 2 are allowed to open and deposit dough batches in a tray 15. The sections 1, 2 are retained in the closed position by fixed bars over which they slide, which bars are replaced, over the lower conveyer, by bars 6 having rollers 7 to support the trays. the bars 6 are carried by levers 9 which are operated through a lever 11 and rod 10 by a cam 14, so that when a tray 15 is situated below the conveyer the sections 1, 2 drop and deposit the dough and are instantly closed. The cam 14 and the lower conveyer are timed to synchronize the opening of the sections with the positioning of a tray beneath them. The conveyers may work intermittently.