baber/WOPTO huggingface dataset:
Patent GB-394458-A (GB)
Title: Improvements relating to saucepans and like vessels
IPC: A47J27/60
Filed: 1932-12-05
Abstract: 394,458. Saucepans &c. BAYLY, P., 165, Leighton Avenue, Leigh-on-Sea. Dec. 5, 1932, No. 10288. [Class 66.] A device for promoting the circulation of the liquid contents of saucepans &c. comprises a conical or pyramidal base portion A having rectangular recesses B in the bottom edge and semicircular apertures C disposed between but above the recesses, the upper part D of the base accommodating a slidable tubular part E having semicircular or V-shaped orifices F near the upper end, which is open. The device is inserted in the pan with the part E raised ; it is depressed to be at the maximum permitted height by the application of the lid, which covers the open end.
Patent GB-199187-A (GB)
Title: Improvements in diaphragms for use in pressure indicating or recording apparatus
IPC: G01L7/00
Filed: 1922-04-11
Abstract: 199,187. Griffith, A. A. April 11, 1922. Elastic-diaphragm pressure gauges.-The diaphragm for fluid-pressure indicating and recording apparatus are constructed of uniform thickness and flexibility and of a form so as to be uniformly stressed when subjected to pressure. The form is that of portion of a surface of revolution between two coaxial circular boundaries generated according to the equation K sin # = @ (K + 1) - b where K is a parameter given bythe formula K = 2 ft/bp, in which r = the radius measured perpendicularly from the common axis. of the boundary circles; # = the angle between the parallel planes of the boundaries and the tangent to the, generating curve; b = the value of rat the point where # = n/2; t = the thickness of the diaphragm; f = the tangential stress in thediaphragm; and p = the pressure thereon. Considerations of flexibility necessitate, a value for K between 2 and 10 and the choice of that portion. of the surface above the plane midway between two planes perpendicular to the axis, one of which planes contains points for which r =' b and the. other # = o, as shown in Fig. 2. The selected portion is shown at x, y, x<1>. Various forms of the. curves are shown in the drawings accompanying- the Specification.
Patent GB-572980-A (GB)
Title: Improvements in and relating to apparatus for hand printing operations
IPC: B41F17/00
Filed: 1944-05-27
Abstract: 572,980. Reservoir pens. TCHEKMEIAN, K. May 27, 1944, No. 10331. [Class 146 (iii)] Lines or patterns are formed on fabrics in a waxy ink contained in a reservoir 3 supported by rollers 6 in an overhead runway 5, and formed with a connector 9 secured to a flexible tube 11 provided with a pencil tube 12. An external electric heater 4 melts the wax which is delivered under control of a stop valve 10 and a valve 13. After use the tube 11 is disconnected and the melted wax run back to the container, and the tube 11 may be fitted with heating means.
Patent GB-1049702-A (GB)
Title: Ski binding
IPC: A63C9/24
Filed: 1964-03-12
Abstract: 1,049,702. Ski-bindings. H. MARKER. March 12, 1964 [March 15, 1963], No. 10539/64. Heading A6D A tightener for ski buildings comprises a lever 1 pivoted to a moveable bracket 5, an adjustment member 10 and a retaining bracket 14, which is adapted to be secured to a ski 16. The adjustment member comprises a plurality of stops 11 threaded on a cable 9 and urged against a nipple by a compression spring 13. The retaining bracket has a notched transverse wall having frustoconical recesses on both sides (Figs. 4 and 5, not shown), such that when the adjustment member is forced into engagement with the bracket the stops are initially parted but snap back under action of the spring 13 to engage the recesses. The retaining bracket may contain a spring-loaded detent ball, which co-acts with a longitudinal groove formed on the inner side wall of the lever 1.
Patent GB-105709-A (GB)
IPC: A41B7/12
Abstract: 105,709. Brandon, J. E. Sept. 27, 1916. Cuff-protectors.-A, cuff-protector consists of a piece of material a adapted to be secured around the sleeve by press fastenings b or the like, and provided with an elastic band c secured to the protector at c<1> and adapted to be passed over the arm of the wearer before applying and fastening the protector.
Patent GB-271426-A (GB)
Title: Improvements in apparatus for indicating the level of material within a receptacle such as for example a blast furnace
IPC: C21B7/24
Filed: 1927-04-20
Abstract: 271,426. Freyn Engineering Co., (Assignees of Rowan, J. S., and Fox, G.). May 19, 1926, [Convention date]. Indicators.-Relates to apparatus for indicating the level of material in blast furnaces and comprises arrangements for controlling automatically a complete cycle of operations. The apparatus shown consists of a test rod 3 suspended within the furnace 1 from a flexible connector 4 wound on a drum 6, which is geared to an electric motor 7. A braking-device 10 for the motor is biassed to braking-position, and can be released by energizing a brake coil 11. From the winding drum 6 a flexible shaft 12 drives a recording-device 15, and also operates a control 16 for a normally-closed limit switch. The cycle of operations is started by the momentary closing of a circuit, which energizes the coil 11 to release the brake 10, thus allowing the rod 3 to descend against the braking effect of the motor 7, which is driven by the drum 6 through the gearing 8. The stoppage of the motor when the test rod reaches the material allows a relay to complete a circuit whereby the motor is energized to hoist the test rod and when this reaches its uppermost position the limit switch is opened to disconnect the motor and to apply the brake. An electrical circuit is described including arrangements for maintaining circuits, which have been completed by relays and an auxiliary limit switch arranged to close after and open before the main limit switch, during lowering and hoisting respectively. The function of this auxiliary switch is to allow time for the current set up when the motor armature is driven by the winding-drum, to energize a relay, which prevents premature operation of the main motor control switch.
Patent GB-564467-A (GB)
Title: Improvements in or relating to ball-float valves
IPC: F16K31/18
Filed: 1943-07-01
Abstract: 564,467. Filters for ball-float, valves. RAWLINGS, W. J. July 1, 1943, No. 10659. [Class 46] [Also in Group XXIX] A removable cylindrical wire-gauze filter 3 is fitted in an extended inlet 4 of a ball-float 5 or in an adapter 6 for attachment to an existing ball-float valve, the open end of the filter being fixed to a ring 2 adapted to seat in a recess 1.
Patent GB-274566-A (GB)
Title: Improvements in or relating to self-propelled vehicles
IPC: B61C9/06
Filed: 1926-04-23
Abstract: 274,566. Leeds Forge Co., Ltd., and Alley, S. E. April 23, 1926. Railway locomotives, steam.-Comprises a steampropelled locomotive or vehicle having two or more axles, a boiler 14 located towards one end of the chassis and balancing means such as tank 16 towards the other end, a steam engine 13 located between the boiler and the axle 12 at the other end of the vehicle, and a transmission shaft 25 which extends to the axle 12 from that end of the engine unit which is remote from the said axle. Change speed gearing 20 - - 24 may be provided between the engine shaft 17 and the shaft 25, as shown in Fig. 2, the final shaft 19 of the gear extending beyond the gear-box 18 to a flexible coupling 26 driving the shaft 25 which passes freely through the hollow shaft 19. The vehicle may be weighted at the end remote from the boiler by the front end of a following coach or by other means. The axles may be connected by coupling-rods or two engines may be provided each driving a separate axle, the transmission shafts being arranged as described as above. Specification 239,932 is referred to.
Patent GB-255544-A (GB)
Title: Improvements in or relating to devices for recording, or reproducing sound
IPC: H04R7/00
Filed: 1925-04-24
Abstract: 255,544. Wallis, H. J., and Samuel & Sons, Ltd., B. April 24, 1925, No Patent granted (Sealing fee not paid). Sound - reproducing devices. arranging and supporting; tool-arms and mountings. - A sound-reproducing or recording instrument comprises a large, light diaphragm 11 which may be conical as shown, and neither constitutes nor is combined with a horn. the diaphragm being mounted on a relatively large bar 1 of wood or other rigid elastic material, which bar carries a stylus or the like. In the apparatus shown, which is of the gramophone type, the bar 1, preferably of pine, mahogany, or other straight grained wood, has a. stylus-holder 2 secured rigidly to it at one end. The bar is bolted at 22 to a wooden carrier 3,. which is secured to the end of a wooden arm 5, hinged at 6 to a pivotally mounted block 7. The diaphragm 11, which may be of thin metal, varnished paper. &c., reinforced near its apex by a metal cone 12, is attached at its apex to the bar 1. for example by a nut and bolt, a spring being provided adjacent to the nut if desired. The bar 1 may be directly supported by a pivotally mounted branched member, the outer ends of which are attached to the bar on opposite sides of the point at which the diaphragms. is carried. In another modification, the bar 1 is mounted inside a wooden or other tube 16, Fig. 5, sound-conducting spacing members 17 being provided within the tube, through a hole in which the apex of the diaphragm passes. The bar 1 in either of the foregoing constructions may be tubular, and may be weighted to provide the necessary pressure on the record, or the supporting arm such as 5 may be controlled by a spring for this purpose. The bar may be made of metal, instead of wood. It mav be supported at one point only and the stylus-holder may be attached to or formed integrally with the bar between a point of support and the point of attachment of the diaphragm. In further modifications, the stylus-holder mav be so mounted on the bar that its rigidity may be varied. Specification 7543/05 is referred to.
Patent GB-493858-A (GB)
Title: Roasting-reaction process for the treatment of lead ores
IPC: C22B13/02
Filed: 1937-04-15
Abstract: In a modification of the process described in the parent Specification, the starting material consists of lead ores occurring naturally in lump or granulated form, or of agglomerated lead ores not subsequently consolidated by heating, or of mixtures thereof, and a portion of the exhaust gases from the hearth, in conjunction with fresh blast air, is blown into the charge through the hearth tuyeres, and another portion is diverted either to the chimney stack or for the utilization of its content of sulphur dioxide.  The flue dust removed from the current of exhaust gas withdrawn from circulation may be added to fresh ore.  Dust may be removed wholly or partially from the gases which are returned to the tuyeres.  The gases may be cooled prior to being returned.  In place of the exhaust gases, other gases of similar composition, such as poor roasting-furnace gases, may be supplied to the hearth.
Patent GB-897878-A (GB)
Title: Missile carriers for attachment to aircraft
IPC: F41F3/065
Filed: 1959-03-31
Abstract: 897,878. Discharging from aircraft. SVENSKA AEROPLAN A.B. March 31, 1959 [April 3, 1958], No. 10801/59. Class 9(2). A streamlined rocket housing to be suspended from aircraft comprises a cylindrical part 3 closed fore-and-aft by fairings 6, 7 respectively, made of a brittle material, e.g. synthetic resin, and provided with explosive means for shattering the fairings prior to launching of the rockets 5. The explosive is in the form of cords 8 joined to electric detonators 9 connected to an electric firing circuit by leads 10. The housing is releasably suspended from the aircraft, so that it can be jettisoned after launching of the rockets. The fairings 6, 7 may be made of laminated synthetic resin reinforced by fibre glass and the explosive cords can then be embedded in the walls. The nose cap 6 and rear closure 7 may be so weakened that fracture takes place longitudinally and transversely of the structures. Between two sets of layers 19, 20, Fig. 6, a perforated sheet 21 of viscose cellulose or waxed paper is sandwiched, the two layers being bonded together only over an area determined by the holes. Instead of a perforated sheet, spaced strips may be used or the layers may be bonded by suitably impregnating parts of the juxtaposed surfaces. Explosive cords may also be placed circumferentially of the housing and the whole housing may be shattered. The shattering may take place in stages.
Patent GB-946403-A (GB)
Title: Process for the preparation of 1, 3, 3-trichloropropene-1
IPC: C07C17/10
Filed: 1960-03-28
Abstract: 1,3,3-Trichloroprop-1-ene is continuously prepared by reacting allyl chloride with chlorine at 400-550 DEG C. in a single reaction stage in the presence of recycled less highly chlorinated products, the reagents being mixed at great speed and the products quickly cooled, preferably to below 150 DEG C. The allyl chloride and recycled products are preferably preheated to 300-450 DEG C. before admixing with the chlorine.
Patent GB-1003933-A (GB)
Title: Helical microwave device
IPC: H01P1/22
Filed: 1963-03-19
Abstract: 1,003,933. Microwave attenuators and phaseshifters. CANADIAN PATENTS & DEVELOPMENT Ltd. March 19, 1963 [May 21, 1962], No. 10924/63. Heading H1W. A variable phase-shifter or attenuator, having either reciprocal or non-reciprocal properties, comprises a helical coaxial line 25, 26 the inner conductor 25 of which is exposed to a variable amount of dielectric material comprised in a rotatable worm core 44. Part of the coaxial line is cut away along a choidal surface tangential to the inner conductor whereby the latter is just exposed to the helical land on the worm core. The pitch and the sense of the coaxial line helix and of the helical land are the same, so that a rotation of 180 degrees shifts the land from a position adjacent the inner conductor to a position opposite a conductive filler 30 between the turns of the line. As shown, the helical land is of V-section and is made of a dielectric material, e.g. a magnetic plastic, having a loss tangent between 1 and 10 and a dielectric constant between 1 and 15. The space between the teeth may be filled with a material having the same dielectric constant as the teeth and a low loss factor, whereby a constant phase shift is maintained as the attenuation varies. If a variable phase-shift is desired, the loss factor is kept constant and small whilst the land is made of a material having a comparatively high dielectric constant, e.g. alumina or fused quartz. In the latter modification, the land profile has a flat top equal in length to the chord along which the coaxial line is cut away. The worm core may be rotated by hand or by a motor and the penetration of the core may be varied by axial adjustment of the helical line along base 10. Impedance matching may be improved by an outward spiralling of the helical line at its ends or a gradual decrease in the height of the helical land. An eccentric inner conductor 25a, Fig. 5, may be used in the coaxial line. Non- reciprocal operation may be obtained by using a ferrite worm core subject to the axial magnetic field of a solenoid wound around the helical coaxial line. The saturation of the ferrite may be varied by the current in the solenoid whereby either non-reciprocal phase-shift or attenuation may be obtained.
Patent GB-927109-A (GB)
Title: Spinning or twisting spindle
IPC: D01H7/14
Filed: 1962-03-22
Abstract: 927,109. Spindle retaining means. J. J. KEYSER. March 22, 1962 [April 12, 1961], No. 10945/62. Addition to 863,918. Class 120 (2). A spinning &c. spindle comprises a bolster 4 containing a footstep and a neck bearing 9, and a driving sleeve with a whorl retained against inadvertent lifting by retaining-members, one, 18, of which is a rigid annular collar while the other, 17, is an elastic member mounted on a bushing-sleeve 13 disposed above the bearing 9, the member 18 being in one with the whorl and defining with the top of the whorl cavity into which it projects, a space 19 into which the member 17 projects to overlap the member 18. To retain the member 17, the top of the bushing 13 is bent over, as shown, or the bushing may have an annular projection engaging a recess in the member.
Patent GB-149725-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01B9/02
Filed: 1919-05-03
Abstract: 149,725. Purser, J. E., and Castello, W. E. May 3, 1919. Two -stroke -cycle engines; driving-gear.-Cylinders of two diameters are cross-connected and arranged co-axially one on each side of a central crank-shaft. connected to the pistons through pin- and-slot mechanism. Charges from the pump space f are transferred to the combustion chamber b through passages t, t<1> which are placed in communication with one another through a passage p' in the piston p. Similar passages place the pump space g in communication with the combustion chamber a. Combustible mixture enters the pump spaces through terminal ports h', h<2>. According to the Provisional Specification, the charges may be ignited by burning gases released from one of the cylinders.
Patent GB-1184284-A (GB)
Title: Improvements in Rotary Diamond Cutters
IPC: B28D1/18
Filed: 1968-03-07
Abstract: 1,184,284. Abrasive tools. CHRISTENSEN DIAMOND PRODUCTS CO. 7 March, 1968 [30 June, 1967], No. 11066/68. Addition to 1,042,681. Heading B3D. [Also in Division E1] A substantially cylindrical rotary cutter has axially spaced circumferential ridges, circumferentially spaced diamond cutting elements being embedded in the ridge crests and flanks. Waterways which are normal to the ridges and parallel with the cutter axis are provided and divide the ridges into ridge sections. Some ridge sections have cutting elements only in the crests and others have cutting elements in the crests and one or other of the flanks. Further cutting elements are provided in grooves, the sides of which are formed by the flanks of adjacent ridges.
Patent GB-199871-A (GB)
Title: Improvements in or relating to the soldering of sheet metal tins and canisters
IPC: B23K1/14
Filed: 1922-04-20
Abstract: 199,871. Head, W. April 20, 1922. Soldering.-In soldering the tops and bottoms or the side seams of tins, canisters &c., the tins &c., after being fluxed, are moved along a line or extended film of molten solder emerging from an elongated opening or slot at the bottom or underside or lower portion of a solder bar or bath, so that the joint is free from dross or scum. The bath, Fig. 2, consists of a V- shaped bar 1, 1<a>, closed at its ends and provided with detachable plates 4, 5. The side 1 is provided with a series of perforations 9, Fig. 3, and is channelled at its under side to receive a perforated bar 7 which is moved longitudinalty by a nut 12 and screw 11 so as to regulate the discharge of solder from the bath, which is heated by a gas pipe 38, Fig. 8. The line of solder emerges from the elongated opening A. In a modification a perforated V-shaped bar sliding in guides on the inside of the bath may replace the bar 7, the perforations in the bar and bath being either towards the lower end as in the form shown in Fig 3, or right at the bottom. The tins 26 may be rolled between guides 37 on a vertically adjustable table 29 by a belt 18 mounted on pulleys carried by adjustable arms 22 and driven by a belt 28 from an electric motor or like. The table may carry spring pressed plates 36 to keep the tins in rolling contact with the belt and bath. According to the Provisional Specification the solder may emerge from a series of perforations at the bottom of the bath or bar.
Patent GB-165979-A (GB)
Title: Automatic air pump for maintaining the air chambers of pneumatic tyres inflated while running
IPC: B60C23/12
Filed: 1920-04-21
Abstract: 165,979. Venanzi, M. April 21, 1920. Actuating pumps by motion of vehicle; pump stroke-varying mechanism.-In an automatic pump for inflating cycle tyres &c. during running, attached to the cycle wheel and actuated by a cam mounted upon a non-rotatable axle and coacting with a roller secured to the pump-rod, a U-shaped member I, Fig. 1, is secured to the piston-rod sleeve R and has its arms arranged to slide in guide-holes formed in an extension E of the wheel-hub. The sleeve R carries a roller N, which is maintained in contact with a cam C by springs M on the member I. The cam is mounted upon a fixed sleeve carried by the axle O<11> and is arranged outside the wheel spokes. The cam C may be pivotally mounted upon a pin K, Fig. 3, carried by one arm of a fixed bellcrank lever R, so that the cam may be held in an eccentric or concentric position on the hub by the action of the spring S respectively. The other arm of the bell-crank lever carries a pin L<1>, which engages a slot T formed in the cam. In a modification the piston is formed with a head Z, Fig. 5, connected by a spring W to a collar X which is adjustably secured to the piston rod by a bayonet-joint so that the pump-stroke may be increased when the pump is manually operated.
Patent GB-1020862-A (GB)
Title: Improvements relating to protective systems
Inventor: ROBERTSON DENIS
IPC: G01R27/18
Filed: 1961-03-27
Abstract: 1,020,862. Protective arrangements. A. REYROLLE & CO. Ltd. April 26, 1962 [March 27, 1961], No. 11116/61. Heading H2K. A protective arrangement for checking the insulation from earth of a conductor, when it is disconnected by a switch 13 from a supply, comprises two impedances 45, 46 connected in series in a testing circuit between the conductor and earth, and means operative when the switch is closed for passing direct currents through the impedances such as to produce equal and opposite potential differences across them. One direct current is derived from.the supply side and the other from the load side of the switch so that when the switch is open the latter current ceases and the former current tends to pass between the conductor and earth a current representative of the insulation resistance. Thus in the polyphase system shown, an earth fault on one or more of the conductors 14 ... 16, when the switch 13 is open, enables the potential produced across the resistor 45 by transformer 51, 47 and rectifiers 49, to cause current to flow through a resistor 36, a diode 35, a transformer 20, the conductors and the fault path. The voltage produced across the resistor 36 causes a transistor trigger stage 60, 62 to change its state to render an amplifying transistor 69 conductive. A relay 71 is energized and is effective to operate a warning device or to prevent the closing of the switch 13. When the switch 13 is closed, the potential produced across the resistor 46 by a transformer 48, 52 and rectifiers 50 opposes that across the resistor 45. Since there is no resultant D.C. potential at point 43, the transistors 60, 62 and 69 are not energized. Should an earth fault now occur, the A.C. flowing through the testing circuit produces a rectified component across a resistor 38 which biases a transistor 75 to conduction. This causes a transistor 76 to cut-off so deenergizing a relay 77 which can be arranged to actuate a warning 'device and/or open the switch 13. The secondary windings 24 ... 26 of the transformer 20 are connected in delta with a resistor 27 in series in the delta to limit the A.C. earth fault current as claimed in Specification 1,020,863.