baber/WOPTO huggingface dataset:
Patent GB-815195-A (GB)
Title: Apparatus for sealing and tipping-off envelopes of vitreous material containing a gas-filling at a pressure above atmospheric
IPC: H01J9/40
Filed: 1957-06-04
Abstract: 815,195. Sealing electric lamps. SYLVANIA ELECTRIC PRODUCTS Inc. June 4, 1957 [June 27, 1956], No. 17782/57. Class 39(2) A turret machine for sealing and tipping off vitreous envelopes containing a gas filling at above atmospheric pressure, e.g. photo flash bulbs, having exhaust tubes extending therefrom, comprises a plurality of heads for carrying the envelopes, a holder for supporting each envelope above a head in which the exhaust tube is gripped and a series of work stations to which the heads successively travel, at the first of which a first portion of the exhaust tube is heated, at the second of which the heated portion is pinched closed by a pair of jaws, at the third of which a second portion of the exhaust tube between the first portion and the head is heated, with or without stretching, and at the fourth of which the exhaust tube is tipped off. In the machine shown for manufacturing electric lamps, a plurality of head assemblies 10 are attached to a moving plate which indexes them to a succession of work stations A, B, C, D. The lamp 3 is held in a holder 18 mounted on a pair of spring-biased shafts 20, the springs 21 of which are compressed when the exhaust tube 1 is mounted in the head assembly 10. At station A the tube 1 is heated by burner 26, stretching of the tube on softening being prevented by a bar cam 38. At station B the tube is heated by burners 43 and pinched closed by a pair of jaws 44 (Fig. 3) carried on cranked arms 46, the opposite ends of which ride in a slot in a block 66 reciprocated by a piston 84 in a cylinder 78 by air pressure applied successively on opposite sides of the piston 84 through air supply conduits 96, 106. At station C the exhaust tube is heated by burners 108, the lamp holder having moved clear of the bar cam 38 so that the holder moves upwards as the glass softens thereby stretching the tube At the same time the tube below the pinch is exhausted. At station D a single burner 114 completes the tipping off.
Patent GB-111723-A (GB)
Title: Improvements relating to the Control of Electric Motors.
Inventor: SLATER JOHN MACKEY LANGHAM
IPC: H02P3/22
Filed: 1916-12-12
Abstract: 111,723. Slater, J. M. L. Dec. 12, 1916. Controllers, liquid; electric braking.-To prevent flashing over at the contacts of a liquid resistance used with an electric motor when the motor is stopped by the reversal of its current supply, the movement of the controller handle causes the insertion of an auxiliary resistance, or varies the electrodes of the liquid resistance The motor 1 is shown as a three-phase motor supplied through a reversing-switch 3 and controlled by a liquid resistance 5. Resistances 7 are connected between the motor secondary and the liquid resistance 5, and they are short circuited by the switches 8 when the coil 10 is energized. The motor operates a double-throw switch 14 through a friction clutch, and this switch is connected between the coil 10 and a switch 21 which is operated when the reversing-switch 3 is operated. When the motor is running forward, the contacts of the switch 21 occupy the position 1 and the switch 14 is in position to connect the contacts 13, 15. The coil 10 is therefore energized and the resistance 7 short-circuited. When the controller is moved to the reverse position to stop the motor, the contacts of the switch 21 are moved to position II. thus breaking the circuit of the coil 10 and putting the resistances 7 in circuit. In a modification, auxiliary electrodes are connected to and disconnected from the circuit by the action of the coil 10, or a separate liquid controller may be substituted for the first during stopping.
Patent GB-240775-A (GB)
Title: Locking of nuts on screw bolts in engines
IPC: F16B39/04
Filed: 1925-07-13
Abstract: 240,775. R÷nnfeldt, A. July 13, 1925. Locking nuts.-A nut 2 is locked to a bolt by a split screw 1 having resilient arms 4, 5 separated by a deep incision 3. The screw is shorter than the hole in the nut, and does not project therefrom. The arms 4, 5 are threaded throughout their length and their outward pressure prevents the screw from working loose.
Patent GB-874004-A (GB)
Title: Tablet making machine
IPC: B30B15/30
Filed: 1960-05-20
Abstract: 874,004. Rotary table moulding machines. STOKES CORPORATION, F. J. May 20, 1960 [July 13, 1959], No. 17941/60. Class 87(2). A tablet forming machine having a rotary horizontal table 22 with a plurality of dies 24 and punches aligned with said dies, comprises a dome-shaped floorless feeding shoe spaced above the table and means vibrating a wall of the feeding shoe. Powdered material is delivered by hoppers 34, 36 to shoe 48, having an open end 49, and then to dies 24 in which it is compacted by upper punches 18 and lower punches (not shown). Hoppers 34, 36 are arranged as shown so that entrapped air may be released through gap 38, and are vibrated respectively at a frequency of at least ten thousand cycles per second by members 40, 53, e.g. of the magnetostrictive type, through couplers 44, 56. A leaf spring 50, adjustable by screw 52 is provided in shoe 48 to provide good packing of the powdered material and guiding devices 76, 90 are provided to direct material escaping from shoe 48 to the month 49. Resilient members 72 are provided to insulate the frame from vibration and the tablets are removed by device 30 and shoot 28. A wall of the shoe may be vibrated by a similar horizontal vibrating device Fig. 7, (not shown), and air may be removed from a single hopper by an upwardly extending duct, Fig. 5, (not shown). Numerous vibrators may be provided, Fig. 8 (not shown).
Patent GB-145678-A (GB)
Title: Improvements in purifying chambers for regenerative breathing apparatus
IPC: A62B19/00
Filed: 1919-04-28
Abstract: 145,678. Paul, J. W., and Hall, C. July 10, 1916, [Convention date]. Respirators.-An absorption chamber forming part of a regenerative breathing apparatus comprises a casing 19 divided into communicating compartments by shelves or baffles 65 of metal or paper. Each compartment is fitted with wire screens 62 formed with rectangular corrugations parallel to the longer axis of the container. Alternate channels are filled with caustic soda, caustic potash, or a mixture thereof, and adjacent screens are inverted, as shown in Fig. 2, so that each chemical - containing channel is completely surrounded by air spaces. Flat wire screens 63 between the corrugated screens 62 serve to hold the chemical in place.
Patent GB-333986-A (GB)
Title: Improvements relating to bobbins
IPC: B65H75/18
Filed: 1929-06-12
Abstract: 333,986. Wilson & Co., Barnsley, Ltd., and Wilson, W. B. June, 12, 1929. Bobbins. - Hoops or shields are attached to bobbins and the like, and prevented from turning thereon by forming the shield with an inturned edge of two or more diameters, and by forming its outer peripheral portion with internal grooves or projections in a lengthwise direction in relation to the bobbin, and adapted to interlock with corresponding recesses in the bobbin. The shield comprises an inturned portion of two or more diameters consisting of a corrugated edge a, Figs. 1 and 2. Grooves or recesses B are formed in a lengthwise direction and preferably extend to the end of the bobbin. An annular groove a<1> may also be provided.
Patent GB-612412-A (GB)
Title: Improvements in and relating to the application of metal coatings to metal surfaces
IPC: C21D9/50
Filed: 1944-09-21
Abstract: 612,412. Electrode holders. DEHN, F. B. (Metallizing Co. of America). Sept. 21, 1944. No. 18049. [Class 39 (iii)] [Also in Group II] For metal coating purposes a consumable metal electrode 16 makes a close sliding fit in a bore 17 of a removable tapered nozzle 14, passes through a bore 15 in the tool shank 10 where it is clamped by a set-screw 19, and extends into the hose 26 supplying a non-combustible gas such as air under pressure of, for example, 30-75 pounds per square inch. The pressure gas passes through the bore 15 and a chamber 32 into tapered passages 31 in the nozzle from which it issues around the electrode and past its tip on to the surface of the freshly deposited metal. Current is supplied by a conduit 20 and the circuit is grounded by the work. The hose 26 and conduit 20 serve as handles. Specification 402,910 is referred to.
Patent GB-1089660-A (GB)
Title: Gas turbine engine combustion equipment
Inventor: PASK GEORGE
IPC: F01D9/02
Filed: 1966-04-25
Abstract: 1,089,660. Gas turbine blade mounting. ROLLS-ROYCE Ltd. April 25, 1966, No.18081/66. Heading F1T. Each nozzle guide blade 17 in a gas turbine engine is supported from the annular flame tube 25 by engagement of flanges 32 and 35 on the respective outer and inner platforms 30, 31 with annular recesses 33, 36 at the downstream end of the flame tube so that the blades move radially with the flame tube but with axial freedom at their upstream ends. The downstream end of each platform 30 is located circumferentially and axially by engagement of dogs 40 on the platform between annular members 41, 42 bolted to the outer casing 14, member 41 also being provided with dogs. The dogs 40 have a limited degree of radial freedom in the recess 43 between members 41, 42. Each platform 31 is similarly located by dogs 45 engaged between dogs on a flange 46 carried by the inner casing 26.
Patent GB-1375119-A (GB)
IPC: G11B5/706
Filed: 1972-04-19
Abstract: 1375119 Polyester films TEIJIN Ltd 19 April 1972 [20 April 1971] 18128/72 Heading B5B [Also in Divisions C3 and B2] Magnetic tape is made by binding a ferromagnetic CrO 2  compound to one surface of a biaxially oriented film of a polyester containing at least 80 mol. per cent of polyethylene 2 : 6 naphthalate which has Young's modulus of at least 600 kg./mm.<SP>2</SP> longitudinally and at least 350 kg./mm.<SP>2</SP> laterally at 20‹ C. and at least 150 kg./mm.<SP>2</SP> longitudinally at 130‹ C. The CrO 2  may contain up to 25% of another element. In examples (1) film is stretched 4À3 times in the machine direction at 140‹ C. and 3À1 times at 130‹ C. transversely before heat setting at 210‹ C., (2) comparative data on dimensional stability is given for different films, (3) stretching is effected on a co-polyester and (4) comparative details illustrate the need for stretching within the scope of the invention.
Patent GB-516017-A (GB)
Title: Improvements in sewing machines
IPC: D05B57/02
Filed: 1938-06-18
Abstract: 516,017. Hinges. UNION SPECIAL MACHINE CO. June 18, 1938, No. 18144. Convention date, June 22, 1937. [Class 65 (ii)] [Also in Group VII] A crank 43 supporting the feed-bar of a sewing machine is mounted, so that the height of the feed-bar can be adjusted, on an eccentric portion of a hinge pin 45 which has means as shown for angularly adjusting and locking it.
Patent GB-758923-A (GB)
Title: Improvements in or relating to domestic hot water supply and space heating installations
IPC: F24D3/08
Filed: 1953-07-01
Abstract: 758,923. Hot water supply and heating systems for buildings. GREER, S. July 1, 1954 [July 1, 1953], No. 18293/53. Class 64(1). In a heating installation including a boiler 1 associated with a domestic fire and a tank 2 of a hot water supply system, a water-heating receptacle 5 at the same level as the boiler contains an electric immersion heater 10 and a separate annular water chamber 9 connected to the boiler by two pipes 6, 7. Furthermore, two other pipes are connected to the receptacle 5, one, such as a vent pipe 14, having a branch 15 leading to at least one radiator 16, whilst the other, such as a pipe 11 conveying water from a make-up tank 12, has a branch 17 connected to the radiator as a return pipe. The main chamber of the receptacle 5, i.e. apart from the chamber 9, is part of the radiator system. The chamber 9 acts as a heat exchanger between the supply and radiator systems so that, if desired, instead of both the electric heater 10. and the fire of boiler 1 being used, either can supply the heat to both systems or, if a valve 8 in pipe 6 is turned off, either can heat its own system. Make-up water from a tank 13 is supplied to the bottom of the hot water tank 2 to replace hot water drawn off at the top and this make-up tank 13 may supply water to the receptacle 5. An electric immersion heater may be fitted to the tank 2. The Provisional Specification describes also an installation in which there is no annular chamber 9, the pipes 6, 7 connecting directly between the boiler 1 and receptacle 5 and the supply and return pipes to the radiators being connected to these pipes 6, 7.
Patent GB-607279-A (GB)
Title: Improvements relating to sound reproducing apparatus
IPC: G11B3/095
Filed: 1944-09-25
Abstract: 607,279. Playing gramophone records. HAINES, F. J. G. Sept. 25, 1944, No. 18311. [Class 40 (ii)] In a gramophone in which the pick-up is arranged to be lowered on to the record at any selected starting position, the pick-up lowering means is arranged to be available for operation only when a selected sector of the turntable is in a position to receive the pick-up. In Fig. 2, actuation of relay 13 closes the operating circuit of the pick-up lowering solenoid 6. The relay circuit is closed through one contact of a control switch 12 and through a commutator switch having segments 8 and a distributer arm (not shown) which rotates with the turntable. The " live " segment 8 is selected by setting switch 9, thereby determining the position of the turntable at which the relay 13 can be actuated and the pick-up lowered. Relay 13 is provided with a locking contact so that it remains operated till switch 12 is released, whereupon solenoid 6 is de-energized and the pick-up is raised off the record by a suitable restoring means, switch 21 being opened to mute the pick-up at the same time. Any suitable pickup positioning arrangement may be employed for determining the landing position of the pick-up, and Fig. 1 (not shown) shows a circuit arrangement in which the sector selecting circuit is combined with a pick-up locating arrangement of the kind described in Specification 607,280, this circuit being substantially identical with that shown in Fig. 3 of that Specification. In an arrangement in which records on separate synchronously driven turntables are played in succession, the invention may be applied to ensure the accurate starting of the playing of a second record after the playing of one record has been completed. Preferably, the records are marked so that their phase synchronism can be observed and one turntable may be driven by a motor having an adjustable stator to enable phase adjustment to be effected.
Patent GB-1389293-A (GB)
Title: Oscillating devices
IPC: G04C11/08
Filed: 1972-04-20
Abstract: 1389293 Electronic watches and clocks BERNARD GOLAY SA 20 April 1972 [4 May 1971] 18434/72 Heading G3T Relates to an arrangement for maintaining and stabilizing the amplitude of oscillation of a balance wheel in a time piece and synchronizing it to a reference signal. The balance wheel 1, Fig.1, is coupled to a spiral balance spring 5 in known manner and carries a permanent magnet 4. In the rest position of the balance the magnet 4 lies between poles 6 of a core 7 carrying a drive coil 3 and control coil 14. A drive circuit, Fig.3, receives synchronizing or timing signals 15 from an oscillator (not shown) and produces drive pulses which are applied to drive coil B3 so as to impart a thrust to the balance each time magnet 4 passes between the poles 6. This pulse will be shaped as pulse 16, Fig.5, when the balance is properly synchronized to the timing signal 15 (shown in the upper part of Fig.5). Signal 15 biases T3 alternatively to conductive and blocked states. Voltage induced in control coil B14 by passage of the magnet, biases T14 conductive via a diode D3, so that energy corresponding to voltage level V-Vd is applied to drive coil B3 and hence to the balance 1. On receipt of a negative going pulse of signal 15, T3 conducts and blocks diode D3 so that energy corresponding to full voltage level V is received by the coil 3 and balance Thus the energy applied will depend upon the phase angle between the induced voltage in B14 and the timing signal 15. If the oscillation amplitude is excessive such that a projection on the balance contacts a leafspring 9, the balance wheel frequency will increase due to acceleration imparted by the spring. Thus the induced voltage in B14 will be advanced in phase so that energy imparted to the balance will be reduced, being that due to voltage level V-Vd solely, i.e. as pulse 17, Fig.5. If the balance wheel frequency falls below normal value f, the induced voltage in B 14 will lag the timing signal so that a pulse 18 wholly at voltage level V will be applied to B3. Acceleration of the balance thus occurs. Pulses 17, 18 represent extreme conditions and normal deviations in frequency will merely shift the instant where the voltage levels change and hence alters the mean voltage applied to B3. The leaf-spring 9 may alternatively be on the balance wheel for engagement with a stationary limit stop, Figs.8 and 9 (not shown). Instead of a leaf-spring there may be a spiral spring, Figs.12, 13 (not shown), or a stationary magnet may be arranged to repel the balance wheel magnet, Figs. 10, 11 (not shown). In a modified drive circuit, Fig.7 (not shown), the timing signal is a saw-tooth wave which operates on a uni-junction transistor (T3").
Patent GB-335165-A (GB)
Title: Improvements in and relating to apparatus for filing letters, papers and the like
IPC: A47B63/06
Filed: 1929-06-15
Abstract: 335,165. Baker, W. E. June 15, 1929. Addition to 267,184, [Class 146 (i), Filing paper &c. sheets.]. Cabinets.-A modification of the filing-cabinet described in the parent Specification comprises a frame C having incorporated therewith a filing-box or stack of filing-boxes B with vertical or approximately vertical open sides B<1>, the frame being rotatable about a vertical shaft F so that the faces can be brought adjacent to an operator, as shown dotted, Fig. 1, or can be turned away so as to provide more room. A vertical bar E mounted on a base A has fixed thereto a plate H which carries the upper bearing of the shaft F, the lower bearing being formed in the base. The open faces of the boxes are enclosed in the out-of-use position by cover parts K, K<1>, K<2>, Figs. 2 and 3, fixed to the base A. A number of trays D, a card index tray D<2>, and boxes J for folded documents, all slidable into and out of the frame, are arranged in the frame so that they are in position for withdrawal when the boxes B are out of use. A door I pivoted about hinges L is provided to close over the trays D, D<2> and bosses J. Specification 318,161 is referred to.
Patent GB-1431095-A (GB)
Title: Measuring instruments
IPC: G01N21/41
Filed: 1973-04-17
Abstract: 1431095 Analyzing gas mixtures INSTRUMENTATION SPECIALTIES CO 17 April 1973 [9 May 1972] 18510/73 Heading GIN In apparatus for identifying the gas components conveyed by a carrier gas from chromatographic equipment by providing a zone where an exothermic or endothermic reaction takes place and the heat change is measured, the effect of variations due to changes in the gas flow-rate are minimized by appropriate heating of the reaction zone. As shown, Fig. 1, the gas flow is directed via a conduit 16 through porous separating discs 22, 40, 48 and inert packing material 24 to an interacting medium 42 where the desired reaction takes place. The initial temperature is measured by thermistor 28 and the reaction temperature by thermistor 46, the resulting temperature difference, measured in a bridge network 60, Fig. 2, being indicative of the test gas component and its concentration. A heating coil 15 surrounds the entry to the reaction zone, and its current is adjusted manually to produce minimum variation of the bridge output when pure carrier gas is fed through the conduit 16 at different flow-rates. In an alternative arrangement, Fig. 2, the thermistors 28, 46 are differently heated by A.C. from a source 90, the difference being established by a potentiometer 94. Other methods of selectively heating parts of the assembly are described.
Patent GB-291633-A (GB)
Title: A resin coated pulp board and method of making the same
IPC: D21J1/16
Filed: 1927-07-12
Abstract: 291,633. Clark, G. M., (Agasote Millboard Co.). July 12, 1927. Wood substitutes.-A composite material consists of layers of artificial resin J and pulp board I united under heat and pressure in a mould A, B so that the resin penetrates into the fibres of the board, the resin and pulp board being employed in the fusible and compressible states, respectively, the effect of pressure and heat being to render the resin infusible and the pulp board compact. Before removal from the press the board is cooled with the pressure still applied to prevent explosion due to the formation of steam, and to obtain a smooth surface. The resin mav be used in granulated form with a filler of wood flour whilst the pulp board contains a fusible binder such as asphalt acenoid gum, &c.. having a low coefficient of expansion. Before insertion in the press the board may be treated with a layer of artificial-resin varnish. Since the resin tends to warp it is given an outer convex surface as shown in Fig. 1 such that after compression and warping the final resin surface will be flat as shown in Fig. 3, the necessary convexity being determined by experiment. In the example shown in Fig. 1 two boards united by varnish are employed, one slightly smaller than the other, and a strengthening head K" of resin is formed around the ends of both. An example of suitable dimensions of boards and resin layer is given. The compound may be coloured by dyeing the filler before mixing with the resin. Both sides of a pulp board may be coated with resin if desired Specification 7301/08, [Class 96, Paper &c.], is referred to.
Patent GB-403724-A (GB)
Title: A new or improved tap or cock
IPC: F16K21/10
Filed: 1932-06-30
Abstract: 403,724. Taps or cocks. WILSON, N. B., South Essex Waterworks, Langham, near Colchester, and KENT, Ltd., G., 199, High Holborn, London. June 30, 1932, No. 18578. [Class 135.] Valves closing after predetermined interval or flow.-A tap or cock giving only a predetermined maximum discharge for each operation comprises a valve member 8 connected to a plunger 10 open to a smaller operating plunger 14 so that valve opening movement of the said plunger 14 compresses the fluid trapped between the plungers and opens the valve ; thereafter fluid leaks past the plunger 10, independently of the position of the operating plunger 14, and allows the valve 8 to close. When the operating plunger 14 is released the spring 161 will return the plunger, the valve 8 will close by fluid pressure, and a non-return valve 19 will open and allow water to pass freely into the space between the plungers in readiness for the next operation. Air may be used as the fluid for the transmission of movement from the operating plunger.