baber/WOPTO huggingface dataset:
Patent GB-259596-A (GB)
Title: Improvements in or relating to printing presses
IPC: B41F31/00
Filed: 1925-08-29
Abstract: 259,596. American Type Founders Co., (Assignees of Kelly, W. M.). Sept. 19, 1924, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cylinder machines; inking-apparatus.-Cylinder printing-machines of the kind described in Specification 240,145 are constructed with inking- rollers mounted in a swinging frame arranged below the impression cylinder, and with means for stopping the supply of ink by tripping the duct roller when the impression cylinder is tripped. The invention is described in connection with a machine as described in Specification 240,145. and comprising a bed 15 reciprocating in inclined ways 16 carried by a frame 10, an impression cylinder 34 which oscillates in eccentric bushings 43 mounted in housings 32, -and a displaceable frame, 112, which carries automatic sheet-feeding and delivery mechanism. The inking-mechanism is mounted below the cylinder 34, and comprises ink-applying rollers 80 mounted in brackets 81, distributing-rollers 82, 82<a>, mounted in a swinging frame 83 pivoted to the housing 32 and an oscillating messenger roller 78 and intermittently rotated duct roller 77 in a duct 76. The rollers 82 may be reciprocated axially by screw-and-nut mechanism as described in Specification 194,294. When the frame 112 is in operative position, the frame 83 is held in position by projections 88 on the frame 112, and by lugs 86 on frame 83 which are held against the bracket 79 carrying the duct 76. When the frame 112 is removed the frame 83 may be swung on its pivot 84 by means of a rod pivoted to the lower end of the frame and held in a guide by a screw which is lightened after the frame is adjusted to its withdrawn position. The messenger roller 78 is mounted on an oscillating shaft 95 operated by a cam 91, lever 92, and link 93 having adjustable connection with an arm 94 on shaft 95. The ductor roller 77 is rotated intermittently by a ratchet operated by a pawl on a bell-crank lever 97, link 99, lever 100 and cam 98. The ink supply is stopped on the tripping of the impression cylinder by means of a catch-lever 103 operated by a cam 106 on a shaft 50 connected by a lever 52, and rod 54 with the eccentric, bearings 42 of the cylinder. When the impression is on, cam 106 keeps the catch 103 out of the path of a projection 102 on the lever 97, but when the impression is off, the catch 103 holds the projection 102 and prevents operation of lever 97.
Patent GB-188466-A (GB)
Title: Improvements in electric relay devices
IPC: H01H50/64
Filed: 1921-09-21
Abstract: 188,466. Cheetham, G. A., Smethurst, W., and Metropolitan - Vickers Electrical Co., Ltd. Sept. 21, 1921. Electrically-released switches.-An electric switch of the drop switch arm type comprises a horse-shoe electromagnet 1 arranged horizontally and having vertical cylindrical pole-faces between which is pivoted a Z-shaped armature 5 on a spindle 6 and having a control spring 8 with the usual adjustment 10. A trip finger 11 on the armature 5 engages an anti-friction roller 19, which is mounted to rotate about a vertical axis between the switch arm 15 and a bearing 20 thereon. The electromagnet 1 deflects the trip finger 11 in a direction normal to the plane of movement of the switch arm 15 which thereby falls into engagement with the contacts 18. A resetting handle 22, and a guide vane 23 for deflecting the trip finger 11 when resetting are provided on the switch arm.
Patent GB-219213-A (GB)
Title: Improvements in elevating hand trucks
IPC: B62B3/06
Filed: 1923-10-09
Abstract: 219,213. Nuttall, R. Oct. 9, 1923. Hand-trucks.-In elevating hand-trucks of the kind in which the load platform is carried by links from the frame, means are provided whereby the steering and elevating handle may be operated and is free for steering in any position without interfering with the elevating mechanism and whereby automatic locking and releasing means retain the load platform in the elevated position. A vertically disposed box 20, Figs. 4 and 5, mounted on the underframe has rotatably mounted thereon the steering-axle 23 carrying the front wheels 24 and also the steering-rod 30 which passes through the box and has pivoted to its upper end the steering-handle 33. A collar 35 is slidable on the rod 30 and engages with the ends of the elevating levers 39 fulcrumed to the box 20 at 40, and the remote ends 42 of the levers being arranged to engage a crossbar on the load platform for elevating purposes. Riding on the collar 35 is an annular plunger 44 to which are pivoted spring-controlled links 47 having notches 48, as shown, with which engages a bar 49 on the steering-rod 33. In operation, the steering-rod is moved forwardly depressing the collar 35 through the links 47 and plunger 44. The depression of the collar rocks the elevating levers 39, thus elevating the load platform which is locked in the elevated position by a spring- controlled catch 53 engaging in a notch in the collar 35. On subsequently raising the steering-rod 33, the bar 49 disengages from the notches 48 and the steering-rod is free. To lower the platform, the catch 53 is released by a foot lever. Stabilizing wheels 56, Fig. 1, are arranged at the front corners of the truck and are preferably arranged to be depressed into operative position when desired.
Patent GB-736957-A (GB)
Title: An improvements in or relating to means for drafting textile slivers
IPC: D01H5/22
Filed: 1951-10-27
Abstract: 736,957. Drafting roller arrangements. RAPER, G. F. Oct. 27, 1952 [Oct. 27, 1951], No. 25175/51. Classes 120(1) and 120(2). Heavily loaded front drafting rollers which confine a sliver to less than its free width comprise two or more co-operating rollers in one or more of which a peripheral groove is formed to receive the other roller or rollers. In one form, a narrow roller b rotates in a groove a<SP>1</SP> in a driven roller a against which it is pressed by a spring i held in a frame k pivoted at e and exerting pressure on a bridge member d<SP>1</SP>. Side cheeks r depending from the bridge member d<SP>1</SP> guide the sliver into the groove a<SP>1</SP>. Scrapers or felt pads s and t are provided to keep the rollers a and b free from loose fibres. In other modifications, two rollers rotate in the groove of a bottom roller, or two grooved upper rollers rotate on a narrow bottom roller. The fibre contacting surfaces of the rollers may be concave, or the rollers may be mounted on their shafts to permit lateral tilting, or the rollers may be mounted on a bush of resilient material.
Patent GB-261887-A (GB)
Title: Improvements in or relating to press copying devices
IPC: B41L7/00
Filed: 1925-10-09
Abstract: 261,887. Rayward, C. C., and Rayward, C. H. Oct. 9, 1925. Damping-appliances, hand.-In apparatus for damping copying-cloths of the type comprising a pair of folding covers adapted to be subjected to pressure in a copying-press to distribute moisture throughout the cloths, the water-absorbent G, preferably a mixture of asbestos and charcoal, is arranged in metal trays F removably secured to the covers by means of metallic clips, and the covers consist of flat metal sheets A, Fig. 1, the edges of which are bent over on three sides to grip the edges of a single sheet of flexible material H, Fig. 6, connecting the covers together. Slots B, Fig. 1, are formed in the sides of the sheets A to receive T-shaped clips C or lugs may be formed on the sheets A, the clips or lugs being bent over removably to grip the trays F. The water-absorbent substance G is covered over with a perforated metal sheet or with asbestos cloth, the edges of the trays being bent over to hold the substance G in place.
Patent GB-329583-A (GB)
Title: Improvements in boiler feedwater control and low-water alarm apparatus
IPC: F22D5/10
Filed: 1929-08-19
Abstract: 329,583. Cockburns, Ltd., and Mac- Nicoll, D. Aug. 19, 1929. Alarms, low-water.-A float 4 in a chamber 1 in free communication with a boiler opens a valve 12, when the boiler water level falls below a predetermined point to allow steam to pass through a pipe 16 into a cylinder 14 beneath a piston 17, which then rises and lifts a lever 19 opening the boiler pressure-relief valve 15. At the same time, the steam passing the valve 12 sounds a whistle 20. The float rests upon a plunger 21 supported in a socket 22 upon a spring 23.
Patent GB-1330016-A (GB)
Title: Procedure for automatic impedance matching and device for imple mentation of the procedure
IPC: H03H7/40
Filed: 1971-04-19
Abstract: 1330016 R.F. couplings SATT ELEKTRONIK AB 19 April 1971 [25 March 1970] 25284/71 Heading H4A A transforming network for matching an energy source to a load impedance comprises continuously variable reactive components which are adjusted automatically during use in accordance with detected values of the magnitude and phase angle of the transformed load impedance. In the invention, the energy source is briefly disconnected from the transforming network, when checks are made to confirm that the source is alive, and that energy flow in the network has ceased, and only then are controllers for varying the reactive components switched on. As described, a radio transmitter 4 is coupled to an aerial 5 through a contact 7 of a relay 8, a detector 6, and a transforming network which comprises a variable capacitor C and a variable inductor L. The detector 6 senses the values of the magnitude and the phase angle of the transformed load impedance, and it feeds signals representative thereof to a three-stage servo amplifier 2. When contacts 13 of a relay 12 are closed, the last stage of the servo amplifier provides control pulses for electric motors M1, M2 which control the variable inductor L and the variable capacitor C. A blocking unit 3 comprises the relay 8, a relay control circuit 10, a transmission detector 9, and a logic circuit 11. The relay control circuit 10 is fed from the intermediate stage of the servo amplifier, and it provides an output to the relay 8 (for briefly opening the contact 7) and it is connected to the logic circuit 11 (for checking the absence of power in the aerial circuit during said brief opening). The logic circuit 11 is also connected to the transmission detector 9, and it controls the operation of the relay 12. A connection is made from the intermediate stage of the servo amplifier 2 to the logic circuit 11, so that the time taken to effect matching may be monitored. If said time exceeds a predetermined value (as might occur if the aerial had been damaged) the matching attempt is interrupted.
Patent GB-225978-A (GB)
Title: Improvement relating to the attachment release and adjustment of rear hubs to the frames of cycles, velocipedes and the like
IPC: B62M9/16
Filed: 1923-10-11
Abstract: 225,978. Ewings, W. E., and Dean, P. J. Oct. 11, 1923. Driving-chains, adjusting; wheels, facilitating detachment of.-In the type of drive in which two or more sprocket-wheels are provided on the rear hub, tension of the chain is maintained by pairs of washers d, k having concentric grooves e, f, g which embrace ball-heads l on the end of the tension screws b. The ball-heads are either circular or elliptical in cross-section, the grooves being made to correspond. The washers k may be screwed on to the spindle and the washer d may form part of, or be rotatably mounted on, the nut n.
Patent GB-692046-A (GB)
Title: Improvements in or relating to means for circulating the heated atmosphere within a furnace
IPC: F27D7/04
Filed: 1950-10-18
Abstract: 692,046. Circulating furnace atmospheres. WRIGHTON, F. E., and AIR CONTROL INSTALLATIONS, Ltd. Oct. 4, 1951 [Oct. 18, 1950], No. 25413/50. Class 51(ii) In a forced convection furnace of the type comprising a fan within and spaced away from the inner face of a wall of the furnace, a driving motor disposed outside the furnace and a shaft connecting the motor with the fan and extending through an opening in the wall of the furnace, and a heat resisting shroud encircling the fan and also spaced away from said inner face so as to direct a stream of heated atmosphere away from the fan into the furnace, which stream eventually finds it way back through a gap between the shroud and the furnace wall to the suction side of the fan, the fan 10 is spaced from the inner face of the roof 11 which is formed with an opening 13 larger than said fan and shaped to provide a countersunk shoulder 14 on which rests the flange 15 of a cusp-shaped refractory sleeve 16 encircling the fan shaft 17. The latter is journaled in bearings 19, 20 carried on a framework 21 and has a cooling fan 26 disposed outside the furnace partially in the cavity 18 formed by the sleeve 16. The cylindrical refractory sleeve 12 encircles the fan and extends downwardly into the furnace.
Patent GB-501297-A (GB)
Title: Improvements relating to bicycle and like wheels
IPC: B60B1/00
Filed: 1937-09-20
Abstract: 501,297. Vehicle wheels. BANE, J. Sept. 20, 1937, No. 26452. [Class 144 (i)] The hub-flanges a of cycle &c. wheels are formed with integral bosses b having reduced neck portions d around which the spokes care folded as shown. According to the Provisional Specification, separately formed studs may be fitted to the flanges.
Patent GB-748519-A (GB)
Title: Improvements in or relating to syphon tubes of flushing cisterns
IPC: E03D1/06
Filed: 1953-09-16
Abstract: <PICT:0748519/IV(a)/1> A polythene syphon tube is built up from the four parts A, B, C and D, as shown, for example, by securing them together by heating.
Patent GB-487849-A (GB)
Title: Receptacle or other container of thermic properties, especially conceived for the production of yoghourt
IPC: A47J41/00
Filed: 1936-09-19
Abstract: 487,849. Vacuum - jacketed vessels. ALONSO, P. Sept. 19, 1936, No. 25556. Void. Convention date, Sept. 28, 1935. [Class 29] A vacuum - jacketed receptacle v for the production of Yoghourt is arranged within a container e which is fitted with a lid c and provided with handles o.
Patent GB-989648-A (GB)
Title: Burner control system
IPC: F23N5/08
Filed: 1962-07-04
Abstract: 989,648. Controlling liquid fuel burners. WHITE-RODGERS Ltd. July 4,1962 [Feb. 10, 1962], No. 25567/62. Heading F4T. [Also in Division G1] In a burner control circuit similar to that described in Specification 926,805 the flame detector relay is replaced by a silicon controlled rectifier, the control being by means of a light sensitive element. Upon closure of a room thermostat 14<SP>1</SP> calling for burner operation, a relay 20<SP>1</SP> is energized through a circuit containing a switch heater 32<SP>1</SP>. Contacts 203 close to start the burner 101. If no flame occurs within a pre-set time heater 32<SP>1</SP> opens its bimetal switch 30<SP>1</SP> to de-energize relay 20<SP>1</SP>, but if a photoconductive cell 50<SP>1</SP> is illuminated by a flame, it switches a silicon-controlled rectifier 206 to its conductive state to set up a comparatively low resistance path through a heater 40<SP>1</SP> to short out heater 321. After a further time, the extra current through heater 40<SP>1</SP> opens the bi-metal switch 38<SP>1</SP>. If now the flame fails, cell 50<SP>1</SP> renders the rectifier 206 non-conducting and relay 20<SP>1</SP> drops out to prevent unburnt fuel being discharged into a hot combustion chamber. The same cycle of starting operations are then performed, but only after a scavenging period determined by the time taken for switch 38<SP>1</SP> to close. Power failure has the same effect as flame failure. If the cell 50<SP>1</SP> is short circuit or exposed to stray light, the rectifier will be in its conductive condition and a circuit will be established through contact 201 to open switch 30<SP>1</SP>. Rectifier short circuit has the same effect.
Patent GB-1027074-A (GB)
Title: Improvements in or relating to circuits for tuning indication
IPC: H03J3/14
Filed: 1963-06-27
Abstract: 1,027,074. Tuning indication. PHILIP'S ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 27, 1963 [June 28, 1962], No. 25625/63. Heading H3Q. The invention relates to a tuning indication circuit which overcomes the difficulty caused by tuning indicator tubes having a logarithmic characteristic, so that when operated from large signals the response is flat around the correct tuning point and this point accordingly indistinct. According to the invention the tuning indicator tube is fed from a D.C. control voltage via a potentiometer comprising two or more resistors, in which a resistor in the series arm of the potentiometer is shunted by a capacitor and a point in the input to the tuning indicator is connected to a point of constant potential via a diode so connected as to be included in the charging circuit of the capacitor. In one embodiment the capacitor C, Fig. 2, charges rapidly during the first tuning sweep from D.C. control source U, over diode D which is conductive. The charge represents the difference between the peak value of the negative control signal and the potential of diode bias source B; due to this charge on the capacitor C the diode D is non-conductive on the return tuning sweep and subsequent sweeps, so that the capacitor C is effectively placed in series with the source U in the input to the tuning indicator tube A. The voltage at the grid of the tube is then sufficiently reduced by the steady voltage drop across the capacitor C as to give a satisfactory indication of tuning. Resistor Rd in series with the diode D suppresses the flattening of the peaks of the tuning curve due to conduction in the diode D at this point to compensate for any loss of charge on capacitor C owing to the slow discharge of this capacitor over resistors R 1 , R 3 . If there is the risk of grid current in the tube A a resistor R<SP>1</SP> may be included in the grid lead to prevent premature discharge of the capacitor C. In a second embodiment the grid of the indicator tube A, Fig. 3, is connected via series resistor R 5  to the tapping point of a potentiometer comprising resistors R 4 , R 6 , which is across the output of source U. Diode D shunts resistor R 5  while the capacitor C bridges resistors R 4 , R 5 . During the first tuning sweep diode D is conductive and capacitor C charges over resistor R 6 ; on the return sweep the diode is non-conductive and capacitor C again effectively in series with the output of source U. To avoid the stepping down of small signals by the potentiometer R 4 , R 6  a Zener diode Z may be connected in series with the resistor R 6 . To sharpen the peak of the tuning indication the grid of the tube A may be connected to the networks described via a potentiometer, the shunt arm of which comprises a fixed resistor and the series a resistor whose value decreases as the voltage across it increases (Fig. 4, not shown).
Patent GB-1417988-A (GB)
Title: Apparatus for use in forming battery plates
IPC: H01M50/103
Filed: 1972-06-01
Abstract: 1417988 Jigs for forming battery plates JOSEPH LUCAS BATTERIES Ltd 21 May 1973 [1 June 1972] 25627/72 Heading H1B The box shown is for use in electrically forming the plates of (lead-acid) batteries and comprises separable end 12 and side 13 walls and internal portion wall 14. All the transverse walls are provided with headed projection which engage slots in the side walls in "keyhole" fashion. Upward movement of the side walls to disassemble the box may be prevented by the insertion of rectangular locking bars 22 passing through apertures in the transverse walls and lying in grooves in the side walls defined by the ends of the vertical ribs 25 and respective single horizontal ribs (not visible). The vertical ribs define slots into which an array of battery plates in interconnected pairs may be placed for forming. The lead bus-bars used in forming lying along the upper ends of the ribs 25 of the respective side walls. Replacement walls of different sizes may be used to alter the shape of the box to receive parted grids of other sizes. The box parts are moulded from polypropylene.
Patent GB-169093-A (GB)
Title: Improvements in or relating to electric transforming systems or devices
IPC: H01F38/28
Filed: 1920-09-06
Abstract: 169,093. Brooks, H. B. Sept. 6, 1920. Transformers; phase, changing.-A transformer is provided with means for generating an auxiliary corrective current which varies in accordance with the ratio and phase relation of the principal primary and secondary currents, the effects of the auxiliary current and principal secondary current being combined to produce the effect of a secondary current having a substantially constant ratio and phase relation to the primary current. The arrangement shown in Fig. 1 comprises a core 1 carrying the primary winding 2 and the principal secondary winding 3, and an auxiliary core 1<1> carrying windings 2<1>, 3<1> in series with the windings 2, 3. The corrective current is generated in an auxiliary secondary winding 5 on the core 1<1>. The ratio between the number of turns in the windings 3<1>, 2<1> is exactly the ratio of transformation desired. The current generated in the principal secondary winding 3 has approximately the desired ratio, and is approximately at 180‹ to the primary current, but if it diverges from these values, a magnetic flux is produced in the core 1<1> which generates a corrective current in the winding 5. The effects of the principal and corrective currents are combined in separate windings 7, 8 of a measuring or other instrument 4 to which the current is supplied. Other instruments in which great accuracy is not required, such as an ammeter 6, may be included in the principal secondary circuit. In a modification, the corrective current is superposed upon the principal current in a single winding of the instrument. The two cores may be combined in a single structure as shown in Figs. 5 and 6. The auxiliary winding 5, and a few turns of the principal secondary winding 3<1>, equal to the number of turns by which the number of turns in the winding 3 is less than the number theoretically required for the desired transformation ratio, are wound round the auxiliary core 1<1>. The remaining turns of the secondary winding 3, 3<1> and the turns of the primary winding 2, 2<1> are wound round both cores as shown. Additional auxiliary cores may be provided to apply a correction to the corrective current in cases where very great accuracy is required.
Patent GB-443767-A (GB)
Title: Improvements in and relating to thermionic discharge devices
IPC: H01J7/18
Filed: 1935-09-16
Abstract: 443,767. Thermionic valves. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 16, 1935, No. 25677. Convention date, Sept. 15, 1934. [Class 39 (i)] The metal envelope of a valve has a pocket or dent in which the getter is located. In one form Fig. 2, a cylindrical metal envelope 1 has a circular dent 18 in which a magnesium getter pellet is retained by a welded - on shield 19. The electrode leads are taken out through a metal member 3 closing the envelope at seals 17, and a metal shield 20 which extends up to the lower of two mica spacers fitting in the envelope 1 protects them from the getter. The shield 20 is secured to the member 3 and is connected to the cathode so that the whole container is at cathode potential. In a modification, Fig. 3, the getter is retained in an annular groove 22 in the envelope. A metal plate 30, with openings 31, fits tightly about the supports of a suppressor grid. The grid posts 23, 24, 25 are spaced by a mica disc 26 fitting in the inner portion 27 of the envelope.