baber/WOPTO huggingface dataset:
Patent GB-281387-A (GB)
Title: Improvements relating to electric switches and contacts
IPC: H01R13/707
Filed: 1926-09-01
Abstract: 281,387. Nyborg. T. G., and Jenkins, H. C. Sept. 1, 1026. Plug couplings combined with electric switches. The exposed contacts of the plug element of a plug coupling are automatically disconnected irom the supply contacts before the play can be withdrawn and cannot again be connected until the plug is replaced. Secured to an internal flange or lugs 4 on the plug casing 1 is an insulating block 5 carrying the fixed contacts 6 to which the supply leads are connected. The movable socket contacts 9 of the plug are located in a rotatable insulating block 7 and carry spring tongues which fit over the ends of the contacts 6. Housed in a recess in the block 5 is a spring- controlled catch 14 adapted, when the plug is withdrawn, to project into a recess 16 in the disc T to prevent relative rotation of the parts 5, 7. and also adapted, when the plug is in engagement with the socket, to be moved by a pin 18 on the socket engaging a lug 17 on the catch, so that relative movement may take place, the members 17, 18 extending through a central hole in the disc 7. In operation, the plug is first rotated to disconnect the contacts 6 from contacts 9 and make the latter dead, and can then be withdrawn, which movement allows the catch 14 to become operative. The reverse movement takes place on engaging the plug. By means of, for example, a notched locating ring 20 on the plug and a stop 21 on the socket, engagement between them can only be made in a predetermined position.
Patent GB-458868-A (GB)
Title: Improvements in two-speed pedal-crank driving-mechanism for cycles
IPC: B62M25/00
Filed: 1935-07-30
Abstract: 458,868. Variable - speed gearing. WOODWARD, R. T. C., 69, Burns Road, Stoke, Coventry, and ADCOCK, J., 7, Greswolde Road, Sparkhill, Birmingham. July 30, 1935, No. 21565. Addition to 419,998. [Class 80 (ii)] The two-speed gear for cycles claimed and described in the parent Specification is modified for attachment to the rearwheel hub of a cycle. Two sprockets 1 and 2 are driven at different speeds in the same direction by chains from two chain wheels secured to the pedal-crank. Either of the sprockets 1 and 2 is coupled to the outer ring 3 of a free-wheel device driving the hub 4, by a clutch member 6 in the form of a ball which co-operates with inclined faces of channels in the sprockets 1 and 2 and pockets 3A-3D in the ring 3. These pockets are arranged around a swivel member 5 pivotally mounted on the ring 3 and having a channel 5A which serves to transfer the ball from one of the driving pockets 3A or 3D to the other when a backpedalling movement is made, the inclined face of one of the channels in the sprockets 1 or 2 acting against the ball to effect this transference. The other pair of pockets 3B and 3C receive the ball in intermediate positions before the forward driving movement of the pedals is resumed when the ball moves into the final clutching position.
Patent GB-1514003-A (GB)
Title: Assembly for sealing a rotary shaft
IPC: F04D29/14
Filed: 1976-05-25
Abstract: 1514003 Seals CREUSOT-LOIRE 25 May 1976 [11 July 1975] 21628/76 Heading F2B A standby face ring seal 30, 32 for the shaft 2 of a centrifugal compressor is brought into operation, i.e. engaged (Fig. 2) only in the event of deterioration of a normally operative pressure liquid (e.g. oil) ring or barrier main seal 6-10, and consequent shut-down of the compressor, by means of a double-piston assembly 20, 26 in communication with the leakage fluid from the liquid seal 6-10 recovered at an outlet chamber 18. Normal oil leakage occurs through the seal 6-10 to chambers 17 and 18, the oil leaking into chambers 17 mixing with any gas in the chamber 17 from the compressor and the resulting emulsion being exhausted to purgers (not shown), whilst oil leaking into chamber 18 is gravity returned to a tank 37 via ducting 36 and a valve 35 which, during normal running of the compressor, remains open, the oil in the tank 37 being returned to a tank 13 by a pump 14 which maintains the oil in the tank 13 at a constant level for continuous feed via duct 12 to the liquid seal 6-10 at a higher pressure than the pressure of the gas in the compressor. The standby face seal 30, 32 is formed between the ring 32 carried by the shaft 2 and the ring 30 mounted on the inner piston 26 spring-loaded and carried within the outer piston 20 of the double-piston assembly. The outer piston 20 carries axially projecting spacer pins 22, 23 and is spring-loaded at 24 to abut, via pins 22, the body 9 of the liquid seal 6-10, the leakage oil in chambers 18 being normally gravity returned to tank 37 and thus having no effect on piston 20 during normal running of the compressor. In the event of failure of the main seal 6-10, e.g. by failure of the supply pump 14, the valve 35 is manually or automatically closed as the compressor is stopped whereby the gravity return of oil to the tank 37 is stopped and the resulting oil pressure build-up, in chamber 18, axially moves the double-piston assembly leftwards to engage the face seals 30, 32 so that the inner piston 26 resiliently loads the face seals 30, 32 as the outer piston 20 abuts, via the pins 23, an outer bearing body 19 (Fig. 2) whereby leakage of gas &c. from the compressor is now prevented by the now static face seal 30, 32, which seal will be maintained during any prolonged stoppage of the compressor. After repair, i.e. when feed to the main, i.e. liquid seal 6-10 is again possible, the valve 35 is opened to empty the chamber 18 whereby the piston 20 is again spring loaded to abut seal body 9 and disengage the face seals 30, 32 (Fig. 1).
Patent GB-184474-A (GB)
Title: Improvements in or relating to magneto electric ignition machines
IPC: H02K21/32
Filed: 1922-08-09
Abstract: 184,474. Neighbour, A. G. L. Aug. 9, 1922. Magneto-electric machines. - A multi-spark magneto is provided with a body casting with magnets and pole-pieces fixed therein and with a timing sleeve detachably fitting the body casting and supporting all the operative parts. Figs. 1 and 7 show a timing sleeve 20 rotatably mounted in the housing 12, carrying pole-pieces 25, and having a flange 26 carrying one of the bearings 30 of the armature, the other bearing 31 being carried by the end-plate 27. The sleeve 20 is adjustable for timing the spark and the distributor and contact-breaker elements are so mounted on it that they maintain a fixed relationship with the adjustable pole-pieces throughout the range of adjustment. The armature shaft 51 is tapered to fit the base-plate 52 of the contact-breaker and carries the distributor rotor 54. The distributor is preferably of the jumpspark type, the stationary members 62 of which are mounted in the end cover 27. A window 65 permits the electrodes to be inspected. The contact-breaker construction is shown in Fig. 3 and is adapted for use in either direction of rotation ; the bell-crank lever 76 is reversible and co-operates with a fixed contact 79 mounted on one or other limb 72 of a Y-shaped extension of the block connected to the primary winding. Fig. 11 shows a modification in which the distributor terminals 63 of the construction shown in Fig. 1 are replaced by pointed screws 115; the cover 92 and the annular distributor member 112 are preferably formed as a single moulding, as shown by broken lines. Fig. 6 shows an armature core which is arranged to give four sparks for each revolution and is formed of I-shaped laminations twisted so as to form pole-pieces 41 and secured between lugs 101 formed on a condenser housing 103 and an end plate 104. Modifications are also described for giving two and six sparks for each revolution. The armature core is provided with insulation 100, 106 preferably forming a spool for the windings.
Patent GB-258254-A (GB)
Title: Improvements relating to saucepans and the like
IPC: A47J36/06
Filed: 1926-09-03
Abstract: 258,254. Braach, P., and Rosenberger, H. Sept, 12, 1925, [Convention date]. Heating and cooking vessels. - A device enabling one saucepan to be supported upon another for cooking comprises a lower part c adapted to rest on a shoulder b of the lower pan. This part curves upwardly to a domed centre part e having perforations f for passage of the steam, and is adapted to contain condensed water. A cover plate g fitting within the part c has radial supporting ribs h and one or more openings which may have hinged or other covers. The plate g may be formed with stepped ledges to carry pans of different dimensions.
Patent GB-614691-A (GB)
Title: Signal level control circuit using thermionic valves
IPC: H04N5/14
Filed: 1946-07-22
Abstract: 614,691. Automatic volume control. FARNSWORTH TELEVISION & RADIO CORPORATION. July 22, 1946, No. 21821. Convention date, Oct. 25, 1945. [Class 40 (v)] In an A.V.C. system the signals to be controlled are amplified and applied to the control grid circuit of a rectifier to vary the rectification of a source of A.C. applied to the rectifier, the D.C. from which is applied to the signal amplifying stage, thus varying the gain of that stage in dependence on the level of the incoming signals. The Figure shows such an arrangement for use in a television transmitter. A source 1 of video signals is amplified in the cathode follower stage 2 and the output applied to a push-pull connected pair of valves 19, 21 operating in Class C and modulating a carrier source 24; the modulated output being applied to a load 31. An A.C. supply 4 is rectified in a full wave rectifier circuit 5, 6 and supplies the D.C. potential across resistor 15 to the cathode follower stage 2. Part of the output of the cathode follower stage appears across resistor 16, the A.C. signals being byepassed to earth through capacitor 18, the D.C. component of the video signal controlling the rectifiers 5, 6 and thus the D.C. potential applied to the cathode follower. In this way when video signals having a D.C. component which is abnormally highly negative appear at the source 1, the gain of the cathode follower stage is reduced, and the Class C modulator stages 19, 21 are prevented from being driven beyond cut-off. Thus, video signals may be handled by the modulator which have very wide variations in their mean D.C. level.
Patent GB-1515891-A (GB)
Title: Swept jet oral irrigator
IPC: B05B1/08
Filed: 1975-05-21
Abstract: 1515891 Fluid regulation BOWLES FLUIDICS CORP 21 May 1975 [30 Sept 1974] 21883/75 Heading G3H [Also in Divisions B2 and F2]  An oral irrigator includes a head 83, Fig. 10 comprising a chamber 91 having an inlet end 90 and an outlet end 92, the inlet end being constructed as a nozzle directing water under pressure into the chamber in which the water undergoes oscillatory deflection and egresses as a jet which sweeps cyclically to and fro in the absence of liquid feedback or air aspiration into the chamber. The head may be be constructed as a fluidic oscillator of the type disclosed in Specification 1515892 or may include a flexible pipe 121, Fig. 12, oscillating within a chamber 123, or a heart-shaped chamber, Fig. 13, having water inlets 132, 133 and in which water is directed to the outlet 136 by an oscillating reel 134.
Patent GB-1201106-A (GB)
Title: Improvements in and relating to gas control valve assemblies
IPC: F23N5/06
Filed: 1968-05-09
Abstract: 1,201,106. Valves. CONTROLS CO. OF AMERICA. 9 May, 1968 [23 June, 1967], No. 22020/68. Heading F2V. [Also in Division F4] A gas control valve assembly comprises a housing 10 having an inlet 12, a main outlet 88 and a pilot outlet 40, a safety valve 17 controlling flow to both outlets and held open by an electromagnet 36, which valve requires resetting following de-energization of the electromagnet, resetting means including a plunger 52 which is depressed from its normal position to reset the safety valve, an interrupter valve 44 carried by the plunger to block the flow to the main outlet during resetting of the safety valve, thermostatic control means 90, 72, 92, adjusting means 68 operative upon rotation of the plunger to adjust the thermostatic control means, and means 20, 30 responsive to withdrawal of the plunger from its normal position to close the safety valve regardless of the state of energization of the electromagnet, the plunger being actuatable to reset or close the safety valve in any predetermined rotary position without affecting the adjustment of the thermostatic means. If failure of the pilot burner 39 causes de-energization of the electromagnet 36, a spring 34 closes the safety valve 17 against the resistance of a weaker spring 54. Withdrawing the plunger 52 to a position in which it is retained by engagement of a spring-loaded ball 58 with a recess below a collar 60 permits a light spring 30 to close the safety valve and extinguish both the pilot and main burners. After the thermocouple of the pilot burner has ceased to energize the electromagnet, the plunger 52 is pushed downwardly to close an interrupter valve 44 and open the safety valve 17 so that only the pilot burner is ignited. The spindle 52 is now released for return to the position shown by a spring 64 and is rotated by a knob 55 to cause a cam track 68 to adjust a lever 72 and hence the temperature setting of a snap valve 80 and a modulating valve 82 controlled by a thermally-responsive bellows 90. The snap valve provides a preliminary low rate of flow to the main burner through a by-pass conduit 86. Inwardly biased latches 62, 62 prevent the safety valve 17 from being opened by downward movement of the plunger 52 before the thermocouple has cooled and allowed the electromagnet to release a plate 32 which spreads the latches to the position shown.
Patent GB-771212-A (GB)
Title: Improved method of and means for electromagnetic recording
IPC: G11B5/02
Filed: 1955-08-02
Abstract: 771,212. Magnetic records. GENERAL ELECTRIC CO. Aug. 2, 1955 [Aug. 2, 1954], No. 22178/55. Class 40 (2). A method of recording a magnetic record comprises impressing a magnetic image upon a ferromagnetic carrier to which dry magnetic particles are applied, excess particles being removed mechanically as by brushing and the remaining particles being electromagnetically re-aligned to improve the fidelity of the developed pattern. The magnetic trace is initially impressed upon a revolving ferromagnetic drum 11 by means of a stylus 10 which magnetizes a trace 15 on the said drum in the form of a wavy line or one varying in magnetic intensity. The surface of the drum passes a chamber 12 containing magnetic particles some of which adhere to the magnetic trace. Excess particles are brushed from the drum by bristles 22 disposed around the edge of the chamber 12. The remaining particles, which may have become somewhat displaced about the trace 15 by the bristles 22 become re-aligned under the influence of a single turn electromagnet 13 energized by alternating current via a transformer 23. The magnetic particles may then be transferred to a suitably prepared adhesive tape 26 to form a permanent record or reproduction may take place directly from the drum 11. An eraze head is arranged between the point of contact of the drum 11 with tape 26 and the stylus 10.
Patent GB-1183718-A (GB)
Title: Improvements in or relating to Pulse Ionisation Chambers.
Inventor: GOODINGS ANTHONY
IPC: H01J47/12
Filed: 1966-05-18
Abstract: 1,183,718. Nucleonics. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 18 May, 1967 [18 May, 1966], No. 22203/66. Heading G6P. In a fission chamber neutron detector, the sensitivity is raised by employing the Ramsaver effect, by which the electron drift velocity in the gas filling of the chamber is raised by the addition of a second gas. The latter is a rare gas, is not subject to radiation damage and is capable of moderating the electron agitation energy so as to raise the drift velocity to the collector electrode. The gas mixture may be helium together with xenon, krypton or argon.
Patent GB-1181999-A (GB)
Title: Machine for Laying Floor Linings Containing Synthetic Resins
IPC: E01C19/40
Filed: 1967-05-12
Abstract: 1,181,999. Coating apparatus. CONRAD ZSCHOKKE S.A. 12 May, 1967 [2 June, 1966], No. 22207/67. Heading B2L. A machine for laying flooring containing synthetic resins comprises a chasis, a resilient plate 28 fixed at the rear end of the chasis and extending obliquely downwardly to lie below a pressure bar 21 mounted on the chasis, thereby to prevent the material to be laid contacting the pressure bar, and means whereby the pressure bar 21 can be vertically reciprocated. As shown the chasis comprises side beams 1 connected at their fore ends by cross member 2 and at their rear by a structure 3. The beams 1 carry pulleys 4, 5 connected by trapezoidal belts 14 and the wheels 4 are driven by motor 7 through chain 10, gear box 8 and chain 13. The structure 3 carries at its bottom end an angle piece 19 to which is fixed a spring blade 17 in an adjustable manner. The opposite end of blade 17 is fixed between a member 18 and an angle iron 16 (Fig. 2, not shown) which carries a beam 21. The whole assembly 18, 16, 21 is given a vibratory motion by a suitable cam device also driven from motor 7. A thin spring steel plate 28 is fixed to the member 19 and extends to beneath the vibrating beam 21 so as to participate in the vibratory motion thereof. In use surfacing material is placed in bulk between the beams 1 and the motor 7 started. This drives the device in direction of arrow f and the vibrating plate 28 spreads the surfacing material M to the required depth whilst at the same time preventing it clogging the moving parts of the mechanism. In a second embodiment the blade 17 is dispensed with and the vibratory motion is produced by means of an eccentric device and in a further embodiment the vibrating mechanism is separately driven.
Patent GB-497612-A (GB)
Title: Improvements in electric circuit breakers of the cross jet type
IPC: H01H33/75
Filed: 1937-08-12
Abstract: 497,612. Fluid - blast switches. UPTON, A., PAILIN, G., and FERGUSON PAILIN, Ltd. Aug. 12, 1937, No. 22234. [Class 38 (v)] A cross-jet explosion pot has a plurality of passages 8 leading from the explosion chamber proper, wherein the contacts commence to separate, into the cross-jet port 6, the passages 8 being parallel to the bore 12 in the insulating member 9 receiving the movable contact, and being preferably opened successively by the latter as it moves to open position. The passages 8 may be formed in member 9 and are preferably fitted with liners 10. The jets tend to hold the arc in the centre of the port, and, when successively produced, lengthen, by corrugating, the arc. The port may contain arc-splitters.
Patent GB-1383022-A (GB)
Title: Electric socket fitments
IPC: H01R13/447
Filed: 1972-05-11
Abstract: 1383022 Covers for electric couplings Gebr HAPPICH GmbH 11 May 1972 [12 May 1971] 22260/72 Heading H2E A socket fitment includes a housing 1 fixable to a wall and has a cover 2 which is slidingly displaceable, e.g. by tongue and groove 5 and 6 to expose or cover the socket openings. As described the housing is fitted into a recess in a wall of, e.g. a caravan so that cover 3 is flush with the wall and vertically slidable, the tongue and groove continuing round the top edge of the housing to assist water tightness. The top of the cover may have a sloping roof. Projections 8 on the cover co-operate with guide grooves 7 which incorporate limit stops to prevent removal of the cover. The projections 8 may frictionally engage ramps on the housing in the closed position of the cover.
Patent GB-487466-A (GB)
Title: Improvements in and relating to valve circuit arrangements for automatic limitation of the duration of an electrical process
IPC: H05G1/38
Filed: 1937-08-13
Abstract: 487,466. Valve relay circuits. GUNSTONE, A. C., and NEMET, A. Aug. 13, 1937, No. 22290. [Class 40 (v)] [Also in Group XXXV] The duration of an electrical process such as the energization of X-ray tube circuits is determined by the charging or discharging time of a resistance-condenser network CR associated with the grid circuit of an auxiliary valve AV, the striking or energisation of which completes a circuit whereby a high negative bias is applied to the grids of the main gas-discharge gridcontrolled valves MV to extinguish them and operate a contactor by means of the contactor relay winding b. Switches S1, S2 are opened to commence the operation of the device ; the prohibitive bias on AV due to condenser C leaks away across resistance R until AV strikes ; the grids of valves MV are then virtually connected to the cathode potential of AV thus imposing a very high negative bias on MV to cut off the anode current.
Patent GB-1165673-A (GB)
Title: Device for Determining the Apparent Direction of the Wind for a Sailing Simulator.
Inventor: WADDINGTON ROGOR STRANGE
IPC: G09B9/06
Filed: 1966-05-19
Abstract: 1,165,673. Sailing simulator. T.P.I. Ltd. 19 May, 1967 [19 May, 1966], No. 22381/66. Heading B7V. A device for determining the apparent direction of the wind for a sailing simulator in which the structure 1 carrying the hull (not shown) is fixed to the casing of a motor 2 having a driving wheel rotating on the floor 3 on which the simulator is installed to swing the hull in response to helm movements, the floor having secured thereto a vertical shaft 4 with a bevel pinion 5 meshing with a bevel pinion 8 on a shaft 7 carried by a bracket 6 on the structure 1 and having a bevel pinion 9 at its other end, an actuator 10 also being mounted on the structure 1, comprises a differential containing three bevel pinions 9, 11, 12, of which two, 9 and 11, are coaxial and the third, 12, has its axis normal to that of the other two, the pinion 9 being driven via pinions 8 and 5 in response to rotation of the hull about a vertical axis, the pinion 11 being driven by the actuator 10 in response to a signal representative of the true wind direction relative to a fixed reference direction, and an output transmitter 14 having a shaft 13 which is coaxial with that of the two pinions 8 and 9 and carries the third pinion 12.
Patent GB-964494-A (GB)
Title: Torque transmitting connecting mechanism
IPC: B23B31/22
Filed: 1963-06-26
Abstract: 964,494. Machine tool details. CINCINNATI MILLING MACHINE CO. June 26, 1963 [Sept. 13, 1962], No. 25382/63. Heading B3B. [Also in Division F2] A positive clutch for transmitting torque between a chuck 10 and a tool 16 and for retaining the tool in the chuck, comprises conical rollers 27 mounted in slots 24 in the chuck and co-operating with flats 23 formed on a tapering shoulder 22 of the tool 16. The rollers 27 are held inwardly in driving engagement with the flats 23 by a sleeve 31 which is mounted on the chuck body 12 with limited rotational play permitted by a groove 37 in the sleeve 31 which receives a pin 36 fast with the chuck body 12. A cup member 49 is freely rotatably mounted on the tool 16 and has limited axial play between a snap ring 55 on the tool and its shoulder 22. When the tool is in the chuck the cup has a cylindrical shell 50 extending over the sleeve 31, and the shell and sleeve have portions 56, 57 of reduced diameter which are in registration when the tool is fully seated in the chuck. To remove the tool from the chuck the cup 49 is moved downwardly as permitted by the axial play and the reduced diameter portion 56 frictionally engages the sleeve 31, and since the cup 49 is held by the operator the sleeve 31 is braked and rotates relative to the driven chuck body 12 against the bias of a spring 42 until the pin 36 engages an end of the groove 37 and pockets 38 in the sleeve 31 register with the rollers 27 which are cammed outwardly or moved outwardly under centrifugal force to release the tool.