baber/WOPTO huggingface dataset:
Patent GB-613876-A (GB)
Title: Improvements in electrical signalling systems suitable for use in mines or the like
IPC: B66B19/06
Filed: 1946-05-10
Abstract: 613,876. Mine signalling systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., PREIST, T. P., and HUTCHINGS, G. R. May 10, 1946, No. 14154. [Class 40 (i)] In a mine shaft signalling system, a signal indicating unit with its associated control equipment is common to a plurality of signalling points and is provided with separate indicating devices to show the origin of the signals received. Use of the common equipment from one point excludes the others, but provision is made at all points for the transmission of an emergency stop signal. The invention is applied to the system of Specification 563,815; portions of the signal indicating unit SIU and the common signal cancelling relay set CSCRS of that Specification being shown in Fig. 2, whilst Fig. 1 shows the equipment CIRS for three signalling points in accordance with the present invention. Operation of the key CLSK at station " C " completes a circuit for the left winding of relay LC which closes contacts LC1 to complete a locking circuit for itself through contacts G4 and HT2, closes contacts LC2 to energize relay A, operates contacts LC3 to prepare a circuit for an indicating lamp LPSC, and closes contacts LC4 to energize relay Z. Relay Z is slightly slow to operate and disconnects signalling keys CLSK ... ALSK at contacts Z3 ... Z1 and by closing contacts Z8 completes the circuit to light the indicating lamp LPSC and the group engaged lamps LPEB, LPEA at the other signalling points. The signal indicating unit SIU operates in accordance with the number of impulses sent as described in the above Specification, and after the necessary action has been taken, the cancelling circuit operates contacts G4 followed at a slight interval by contacts E4, the relay LC being de-energized during this interval to restore the equipment to normal. If an emergency stop signal is sent by station " B " before the cancellation of the above signal, the operation of the key BESK energizes the righthand winding of relay LB in series with relay EM. Relay LB lights the lamp LPSB and provides a holding circuit for relay Z, and relay EM closes contacts EM1 to energize relay ES to initiate emergency stop conditions in the signal indicating unit, and relay HT to close contacts HT1 to operate a hooter and at contacts HT2 to open the locking circuit for relay LC and operate relay EN which is slow to energize and release. -Relay EN at contacts EN1 provides a temporary locking circuit for relay LB during the period in which relays EM and HT restore on release of the key BESK. Relay LB then remains held by the normal locking circuit through contacts G4 and HT2 so that the emergency stop condition remains until the subsequent operation of key BLSK to restore relay A and transmit a further signal.
Patent GB-311240-A (GB)
Title: Reversible double helical gear motors having means for preventing re-compression on the converging side of the rotor
IPC: F01C1/16
Filed: 1929-05-07
Abstract: 311,240. Demag Akt.-Ges. May 7, 1928, [Convention date]. Movable . abutment type; back-pressure, reducing; valve-gear.-A reversible rotary engine of the double helical gear type is provided with valve - controlled relief passages to prevent compression of the driving fluid on the converging side of the rotors. A reversing valve (not shown) admits fluid to one of two chambers 6. 4, the other of which is opened to the exhaust; valve-controlled passages 10, 11 lead to these chambers 5, 4. The valves 6 of that chamber 5 to which pressure fluid is admitted are closed automatically by the fluid while the other valves 9 are opened to permit the escape of fluid to the chamber 4 without compression which otherwise occurs if the fluid has to exhaust to the chamber 4 through the admission ports 8 for reverse running. Ball, plate, or flap valves may be used.
Patent GB-831442-A (GB)
Title: Improvements relating to oil lamps for heating or lighting
Inventor: JENNINGS ALFRED GEORGE
IPC: F23D99/00
Filed: 1957-05-04
Abstract: 831,442. Oil-burning wick lamps. COX, WILCOX & CO. Ltd. May 5, 1958 [May 4, 1957], No. 14276/57. Class 75(1) An oil lamp for lighting or low heating comprises an oil container with a sheet metal top 2 secured to a body part 1, and an upstanding hollow burner body 6 integral wth the top 2 and having in its sides primary air inlet apertures 21 and in its top an air outlet aperture 22, Fig. 6. situated adjacent a wick tube 14 associated with a wick winder 24, 26, the upper end of the wick tube projecting from the burner body 6 and being surrounded by a flame-shaping cone 19 spaced from the wick tube and having a flat inturned base 20 seated on top of the burner body 6 and slotted to receive the wick tube which has projections or tongues 15 bearing on the base 20 and which passes through slots in the top and bottom of the burner body and is expanded or spread at its lower end on to the bottom of the burner body so that the wick tube and cone 19 are firmly secured to the burner body. As shown in Fig. 1 the wick winding spindle 24 has bearings in a lower step 10 of a cylindrical burner body portion 6 rising from a conical sheet metal annular top portion 2 having its rim 4 spun over a flange on the cylindrical wall of the container to form the top thereof. At a shoulder 18 just below the spindle a bottom plate 17 with a central depression and covering the oil space is held in place by the peened-over ends of the wick guide tube 14 which towards its upper region has pressed-out tongues 15 bearing on the enclosing flat top 7 of the hollow burner body 6. The flame-shaping cone 19 is flattened and flared at the top. The aperture 22, Fig. 6, allows air to enter inside the flame-shaping cone. When the lamp is used for lighting, a glass chimney 27 is provided carried in a gallery piece 28 the skirt 29 of which fits over an upper step 11 of the body 6 and is held in position by bayonet joints 31, Fig. 2, so that air apertures 30 in the skirt 29 of the gallery and the apertures 21 in the cylindrical step are in register. When the lamp is used for heating an enclosing gauze 33, Fig. 7, is provided instead of the gallery and glass chimney but with its skirt 35 masking the air apertures 21. A filling aperture 5, Fig. 7, is formed in the conical top portion 2.
Patent GB-528723-A (GB)
Title: Improvements relating to facing plates for masonry
IPC: E04F13/14
Filed: 1939-05-13
Abstract: 528,723. Facing plates for walls. SONNENSCHEIN, F. May 13, 1939, No. 14359. Convention date, June 3, 1938. [Classes 20 (iv) and 87 (i)] In facing plates for walls having tongued and grooved meeting edges in which the plates are secured by fixing hooks engaging one of the faces of the groove, the upper face of the groove is gapped at intervals to facilitate fixing. As shown,' one edge of the plate a is provided with a bevelled tongue b which engages in a groove formed by a member e engaged by a hook f and an upper member which is provided with gaps d.
Patent GB-169482-A (GB)
Title: Improvements relating to dynamo-electric machinery
IPC: H02K3/493
Filed: 1920-05-26
Abstract: 169,482. Whitehorn, H. K. May 26, 1920. Coils; cores.-Slot wedges are constructed of parallel magnetic laminae completely embedded in moulded insulating-material so as to leave a thin sheath of insulating-material to form a smooth inner surface in addition to smooth sides. Fig. 4 shows numbers of flat plates 1 placed in an insulating-sheath 2, which alternatively may be formed as a sheet 3 from which the wedges can be sheared off. The plates 1 may be replaced by a continuous strip 4 bent as shown in Fig. 7 and broken occasionally, as at the point 5. The plates of magnetic material 6 may also be shaped as shown in Figs. 9, 10, or 11, and the slots are preferably formed with rather shallow depressions.
Patent GB-143874-A (GB)
Title: Method of treating waste sulfite liquors and products obtained therefrom
IPC: D21C11/00
Filed: 1920-05-26
Abstract: In the preparation of a dry non-hygroscopic product substantially free from sulphur dioxide, calcium, and magnesium, containing a reduced glucose content, and suitable for a binding or adhesive, from waste sulphite liquors, bases such as calcium and magnesium are precipitated and the liquor rapidly concentrated or evaporated by spraying under pressure of 100 to 1000 lbs. per square inch into a chamber through which hot flue or other gases pass.  The evaporation may be effected in one or two stages.  Where two stages are used, the gases leaving the chamber after the final stage may be passed at approximately 200 DEG  F. into a second chamber where the preliminary concentration is effected, in which chamber a liquor containing 30 to 60 per cent of solids is obtained.  The final evaporation is effected at from 300 DEG  to 500 DEG  F. and the dry product comprises minute glazed solid spheres or hollow spheres each having a blow hole. Chromium sulphate, aluminium sulphate, sodium sulphate or "bisulphate," ammonium sulphate, sulphuric acid, or oxalic acid may be used to precipitate the bases and the presence of magnesium free from combination with an organic complex is unobjectionable.  The fine powder may be used as a binding material to form briquettes which may be used to supply heat for the evaporation.  Any fine powder carried away by the hot gases may be separated therefrom by electrostatic precipitation or by filtering, or the pressure of the gases may be reduced and the dust brought down in a settling chamber by the fog produced.  In the latter case the damp product would be re-dissolved and the solution sprayed again into the drying chamber. The liquors may be first concentrated in a multiple effect evaporator.
Patent GB-1394336-A (GB)
Title: Signal suppression
IPC: G05B9/02
Filed: 1973-03-26
Abstract: 1394336 Selective signalling SIEMENS AG 26 March 1973 [6 April 1972] 14396/73 Heading G4H Apparatus for preventing the simultaneous occurrence if signals on more than one path Al-A n  comprises gates G1-G n , means 2-5 for blocking the gates for a predetermined time on the occurrence of two or more signals, and resettable means 7-9 for blocking the gates until reset if means 2-5 are caused to operate a predetermined number of times. Each signal path A connects a control order transmitter S in a step-by-step control system, to a signal store B. When the system is operating at the normal signal traffic level a "1"  signal exists on exactly one of the paths. The outputs from Gl-G n  are connected via resistor R and diodes D to a threshold device 2, which emits a pulse when its input reaches a level corresponding to two or more simultaneous outputs A from Gl-G n . This pulse is delayed at 3 by a time t 1  (e.g. 0À1 m.sec.). so that highfrequency disturbances (less than t 1 ), do not affect the system. For a more protracted disturbance, a monostable 5 emits a pulse K of duration t 2  (= 10 t 1 ), which passes through an OR-gate 6 to block gates G. The output K also passes via an R-C circuit 7 to a bi-stable 8: in the event of enough pulses being produced by 5, the bi-stable is set to apply a signal via 6 to block Gl-G n  until it is reset by a switch 9. The gates may be active elements such as switching transistors which block the signal paths unless they are energized; here, the output from 6 is used (switch 11 vertical), to block a gate 110 connecting the power supply P to gates G. RC smoothing circuits 10 ensure that stores B do not respond to pulses of duration t 1  or less passed by Gl-G n  before the continuous blocking.
Patent GB-239924-A (GB)
Title: Improvements in air-purifying apparatus
IPC: A61L9/12
Filed: 1924-06-17
Abstract: 239,924. Johnson, A. June 17, 1924. Ventilating shop-windows; air, treating and conditioning; inlet ports, arrangements of; forced ventilation.-Disinfected air is supplied to a butchers', fishmongers', &c., shop window 1 by drawing or forcing air by a fan &c. over or through disinfectant 8 in a box 7 secured in a chamber 4, which is connected by one or more flexible pipes 17 to one or more delivery nozzles 18 clamped to the slab 2 of the window. A further nozzle 24 may' be secured in the side frame 25 of the mirror 3. The box 7, the mouth of which is preferably covered by a grid 9, is secured to the chamber 4 by clips 12 pivoted to the latter and engaging catches 13 beneath the ends of the box. In the modification, Fig. 5, a fan 26 draws air into the chamber 4 through the wire gauze cover 28 of the boll-mouthed end of the chamber, the box 7 being made circular and screwing into the bottom of the chamber 4. In a further modification, Fig. 6, the disinfected air is delivered from the pipes 17 by way of one or more flat nozzles 36 either through passages in the slab 2 or through passages 33 formed by plates 30, 31 having a number of distance-pieces located between them, the plate 30 abutting against the front wall 29 of the shop and the plate 31 abutting against the forward edge of the slab 2. Specifications 1995/95, 29674/97, and 579/08, [Class 116, Shop &c. accessories], are referred to.
Patent GB-130823-A (GB)
Title: Improvements in and relating to Axle Boxes for Railway and other Rolling Stock.
Inventor: SHEPHERD ARTHUR ALBERT
IPC: B61F15/06
Filed: 1918-09-09
Abstract: 130,823. Shepherd, A. A. Sept. 9, 1918. Vehicle-axle bearings.-The top, bottom, and sides of a railway-vehicle axlebox consist of drop forgings or stampings of mild steel or wrought iron, welded, riveted, or bolted together. The cover D is also preferably a drop stamping or forging. The back may consist of a flat perforated plate L, and another plate may be fitted to act as an oil guard, the plates being welded, riveted, or bolted in position. The sides B are formed with axle-guard grooves B<1>, recesses G to receive projections on the top and bottom and larger recesses G<2> to reduce weight, and with projections K to guide the bearing and slipper. To enable the two sides to be stamped by one pair of dies, two projections K may be formed, the lower one being cut off before assembling the parts.
Patent GB-839237-A (GB)
Title: Improvements in or relating to base plates for supporting railway and like rails
Inventor: BT HUGH JOHN MACBETH RIGBY
IPC: E01B9/48
Filed: 1955-06-23
Abstract: 839,237. Railway rail base-ptates. MILLS Ltd., Executors of J. June 1, 1956 [June 23, 1955; April 17, 1956], Nos. 14732/57 and 14733/57. Divided-out of 839,236. Class 104 (2). A base-plate for supporting a flange-footed rail 22 and mounted on a separately-formed sleeper and in which the rail 22 is secured to a rail seating 23 on the base-plate by clips 38 having upper and lower arms 36, 37 connected resiliently together at one end 38 and provided at the other ends respectively with downwardly- and upwardly-directed gripping portions 40, 42 which respectively apply a gripping pressure to the rail flange and engage a downwardlydirected abutment face 26a-provided on a part of the base-plate, the base-plate is formed on at least one of its two longitudinal edges with one or more openings 24, 25 to receive the lower arm 37 of one of the clips, each opening extends to an inner face 19 disposed beneath the rail seating 23 and extending transversely to the opening length so as to be engageable by the free end 37a of the lower clip arm 37' to limit. the driving movement of the clip and the upper side of each opening near the inner face 19 constitutes the abutment face 26a and extends in a direction parallel to or upwardly inclined relatively to the rail seat 23 so as to retain the lower clip arm 37 in position. The subjectmatter of this Specification issubstantially the same as that described in Specification 839,236, but the claims differ. Specification 839,236 is referred to.
Patent GB-920309-A (GB)
Title: Method and apparatus for carrying out operations at a well head positioned below the surface of a body of water
IPC: E21B41/04
Filed: 1961-04-24
Abstract: 920,309. Wells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 24, 1961 [April 25, 1960] No. 14808/61. Class 85. [Also in Group XXII] An underwater well head 11 comprises a track 35 for a remotely movable and actuable manipulator device 36 adapted to connect and disconnect elements and operate components of the head. The body of the device comprises telescopic, relatively rotatable sections 40, 41 and if desired intermediate sections 42 (Fig. 1). The lower part of the body has wheels 52, 53 engageable with the track, and rollers 54, 55, 56 adapted to engage a further track 37 mounted on the head. The top of the body carries telescopic, rotatable arms 46, 47 provided with members such as a grapple 50, a wrench socket 51, or a wrench socket set at 90 degrees to the axis of the arms. Means are provided to prevent the sockets applying excessive torque to elements such as a bolt 16 or valve spindle 18. Prime movers within the body and controlled from the surface drive the wheels and rollers, and operate parts 40, 41, 42, 46, 47, the operations being viewed at the surface by television cameras 65, 66. The device is lowered to the vicinity of the well head by a hoist, or by flooding a float chamber and may be propelled to the head and driven along the tracks by propellers rotating in tubes mounted on top of the device. A pin 62 may engage a notch 61 on the track 35 to locate the device relative to the head. Underwater tanks positioned around the well head may be controlled or serviced by the device.
Patent GB-883004-A (GB)
Title: Manually or fluid pressure actuated fluid control valves
IPC: F16K31/363
Filed: 1959-04-30
Abstract: 883,004. Valves. SANDOY, P. April 30, 1959 [May 7, 1958], No. 14840/59. Class 135. [Also in Group XXI] A number of pressure containers 1, Fig. 1, e.g. in a fire-extinguishing system, each embodying a valve 5, Fig. 2, are connected to a common pipe 3, Fig. 1, each valve having an inlet 4, Fig. 2, from its container and an outlet 2 leading to the common pipe. A movable closure member 7 is connected to a threaded hand-operating shaft 8 by a two-part member 9 held in the position shown by a spring- loaded piston 14, below which is a chamber 20 open to the outlet 2 via flats or grooves on the member 7. Upon manually opening any one of the valves the pressure fluid from its container enters the outlet 2 and chamber 20 of each of the other valves to elevate each piston 14; upon each piston flange 15 contacting flanges on the associated member 9 the two portions thereof are swung apart at the lower end to release the closure member 7, each one of which is then unseated by the pressure of fluid in the container. During transportation a loop 21 is used to prevent movement of the pieton 14 and hence opening of the valve; when the valve is in position the loop is placed in the casing holes 22 and acts as an indicator of the valve position. The valve is provided with a frangible disctype safety valve 24. Isolating valves 27, Fig. 1, may be used so that the number of containers 1 connected to the outlet 28 can be varied as required.
Patent GB-891468-A (GB)
Title: Improvements in or relating to multivibrator circuits including transistors
IPC: H03K3/282
Filed: 1958-05-09
Abstract: 891,468. Transistor pulse-generating circuits; pulsing carrier frequencies. PHILIPS ELECTRICAL INDUSTRIES Ltd. (Philips' Gloeilampenfabrieken N.V.). May 9, 1958, No. 14914/58. Classes 40(5) and 40(6).  A multivibrator circuit comprises two transistors T1, T2 the collector electrode of each being connected to the base electrode of the other through a capacitor Cl, C2 in series with a diode D4, D3, the emitter electrodes of the transistors being connected together and to a point on a potentiometer chain connected across a voltage source V1, the base electrodes being connected through further respective diodes Dl, D2 to another point on the potentiometer chain and also through resistors R2, R4 to one terminal of the potential source and the collector electrodes of the transistors being connected through respective resistors R9, R11 to the other terminal thereof, the arrangement being such that when one of the transistors switches from the non- conducting to the conducting state, only the initial portion of the voltage step transmitted through the corresponding cross-coupling capacitor passes through the corresponding one of diodes D3, D4 which is so biased that it is thereafter cut off by the voltage step, so preventing the application of a large inverse voltage between the emitter and base of the other transistor. A further transistor T3 is pro- .vided; this is normally conductive and in this state prevents the multivibrator circuit from operating. On the application of a suitable voltage to the terminal i, the transistor T3 is cut off and the multivibrator circuit comprising transistors Tl, T2 is free to operate. In the circuit shown the emitter electrodes are held at a steady voltage of minus 18 volts by means of the smoothing capacitor C3. The junction of the resistors R3, R6 is arranged to be at minus 16 volts so that by means of diodes D1, D3 the potential of the base electrode of transistor, Tl cannot become more positive than minus 16 volts and hence an excessive emitter-base potential cannot be applied to this transistor. Similarly the base electrode of transistor T2 can never become more positive than minus 16 volts. As well as being used to switch the multivibrator on and off, transistor T3 also serves to mitigate the effect of varying collector leakage current upon the frequency of operation. Thus upon a rise in temperature the leakage current in transistors Tl, T2, increases and hence reduces the potential differences developed across capacitors C1, C2 so that they are able to discharge more rapidly and the frequency of operation tends to be increased. However, by virtue of the increased collector leakage current in transistor T3 the rate of discharge of capacitor C2 is reduced and the overall effect of the increase in temperature upon frequency is likewise reduced.
Patent GB-1134903-A (GB)
Title: Massaging apparatus
IPC: A61H39/04
Filed: 1967-03-31
Abstract: 1,134,903. Valves. TAKEUCHI TEKKO K.K. 31 March, 1967 [13 April, 1966], No. 14935/67. Heading F2V. [Also in Division A5] A rotary pneumatic valve 19 comprises a rotor 20 having axial inlet and exhaust passages 24, 28 and a stator 19a having spaced axial rows of ports a to f. Each port is connected to bellows (27) or cylinders for massaging purposes (see Division A5-A6). As the rotor rotates, the inlet and exhaust passages are connected in sequence with each row of ports to cause alternate expansion and contraction of the bellows, the expansion and contraction of each bellows being in phase with bellows in the same row and out of phase with bellows connected to ports in the other rows.
Patent GB-730878-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: COOPER DAVID HENRY D OYLY
IPC: B60C9/09
Filed: 1952-06-07
Abstract: 730,878. Pneumatic tyres. DUNLOP RUBBER CO., Ltd. May 18, 1953 [June 7, 1952], No. 15180/52. Class 144 (2). A pneumatic tyre cover has a rubber tread 7 and side walls 8 moulded integrally with a carcase 1 comprising a pair of coaxial beads 2 interconnected by a plurality of laterally extending loops of steel cord 3 coated with a resilient material, the loops enclosing the beads 2 and being disposed perpendicularly thereto, and adjacent loops being in contact at the crown of the tyre. Fig. 1 shows the steel cord 3 sandwiched between two pairs of elastic layers 4, 5 of polyvinyl chloride resin rubber, the layers 4 adjacent the steel cord being of greater hardness than the layers 5 which are in turn of greater hardness than the tread rubber 7 and an inner rubber carcase lining 6. The loops of steel cord 3 are formed by a single winding as shown in part in Fig. 2, the cord having a coating of vulcanizable rubber composition of about 0.005 inch thickness. In an alternative arrangement; Fig. 3, a carcase 9 of steel cord loops 3a and elastic separating layers 10, 11 is moulded integrally with an inner light-weight textile carcase 12 formed of a pair of beads 16 interconnected by bias-cut textile cord plies 13, 14 and a thin inner rubber sheet 15. Specification 715,618, [Group V], is referred to.