baber/WOPTO huggingface dataset:
Patent GB-457846-A (GB)
Title: Improvements in or relating to television tubes
IPC: H01J29/62
Filed: 1935-03-04
Abstract: 457,846. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. March 4, 1935, No. 20744/36. Convention date, March 3, 1934. Divided out of 457,757. [Class 39 (i)] In television cathode - ray tubes highly evacuated or filled with gas at a pressure below 5.10<-5> mm., in which an electron lens produces a real image on the luminous screen of an object such as a circular or square aperture 7 in a diaphragm 6, Fig. 2, the lens is made spherically corrected by forming it as an apertured disc 12 positive with respect to a tubular electrode 9 having an apertured diaphragm 10 within it, the distance of the disc 12 from the diaphragm 10 being at least equal to, and preferably twice, the diameter of the aperture in the diaphragm 10. The diaphragm 10 is at distance from the end 11 of the tube 9 preferably not greater than the radius of the tube 9 and serves to prevent the equipotential surfaces extending too deeply into the end 11 and so to avoid disproportionate refraction of marginal rays : this effect may be aided by spherical segments 33, Fig. 1, inside the end 11. The disc 12 may be part of the anode described in Specification 457,757 and may be connected to the diaphragm 6. Similar considerations may be applied to the spacing of the diaphragm 6 from the control electrode in the form of a cylinder 4 and internal diaphragm 5. Dimensions and voltages are specified : the emissive oxide surface on the indirectly heated cathode 1 may be À3mm. in diameter. A coating 19, magnetic sheath 34, and deflecting plates operated and associated with auxiliary electrodes 13<1> as described in Specification 457,848 may be provided or the ray may be deflected magnetically. Specification 431,327 also is referred to.
Patent GB-187564-A (GB)
Title: Improvements in pumps
IPC: F04B9/14
Filed: 1921-05-17
Abstract: 187,564. Zwicky, J. May 17, 1921. Lever-actuated pumps ; rod guides.-A pumpoperating mechanism comprises a crosshead 11 sliding in a guide formed on an extension 8 of the cover 7 of the pump, a guide slot 13<1> arranged at right angles to the crosshead guide, and a lever 12 pivoted to the crosshead and having its end sliding in the guide 13<1>. A spring 10 is inter. posed between the gland on the piston rod and a movable abutment 44. Lubricant passes from a cup 15 to the guide 8 and crosshead and through a passage 45 to the lever pivot. Oil passes from the guide 8 through a channel 16 to the guide 13<1> and the pin 13 on the, lever. The other features of the pump are similar to those described in Specification 187,268.
Patent GB-597021-A (GB)
Title: Improvements relating to display panels
IPC: G09F7/00
Filed: 1945-08-13
Abstract: 597,021. Indicating variable information. GUICHARD, R. A. E. Aug. 13, 1945, No. 20764. [Class 118 (i)] An indicator for showing the progress of an operation or the like comprises a frame which may be of the type described in Specification 550,279, bearing a reference strip a divided into columns and at least one longitudinally slidable strip b divided into spaces and bearing a longitudinal band of a colour different from the spaces which is interrupted in those spaces which require to be aligned with the reference columns for a width equal to that of the columns. A plumb-line g is provided for correlating the points on the several strips b ... f corresponding to a particular column.
Patent GB-499825-A (GB)
Title: Improvements in and relating to the skinning of fish fillets
IPC: A22C25/17
Filed: 1937-07-27
Abstract: 499,825. Dressing fish. BAADER, R. July 27, 1937, No. 20812. [Class 28 (ii)] In a machine for skinning fish fillets, the fillet F is fed over a roller 6 and engages a roller 7 which is thereby displaced, the roller 7 being connected to a knife 16 in such manner that the displacement of the roller 7 moves the knife from an inoperative position to an operative position in which it is spaced from the roller 6 by the thickness of the skin which is thus separated from the flesh. The roller 7 is journalled in blocks 8 carried in slots in rocking-arms 9 pivoted on the shaft 10 of the roller 6 and connected to springs 11 which tend to move the arms 9 counter to the rotation of the roller 6. The roller 7 is geared to the roller 6 so that thev have the same peripheral speed, and the blocks 8 are either clamped in the slots by set screws, or are urged towards the roller 6 by springs. The knife 16 is carried on a shaft 15 which oscillates and slides in fixed bearings. Forked members 14 slidably engage blocks 13 on the shaft 12 of the roller 7, and are secured to the shaft 15. In operation, the fillets are laid, skin downwards, on a conveyer 5 and are passed by a positively driven roller 31 to the roller 6. When the leading end of the fillet engages the roller 7, it clutches the rollers 6, 7 together and the roller 7 swings downwards, against the action of the springs 11. This downward swing causes the knife 16 to be swung about its pivot 15 to cut into the fish to the skin, the extent of penetration being regulated by the stop 17 which limits the downward motion of the roller 7. The shaft 15 is longitudinally reciprocated by a cam on the main drive shaft 20, so that the knife 16 likewise reciprocates to facilitate the cutting. The flesh passes over the top of the knife, whilst the skin, being removed from the roller 6 by a scraper 35, falls through an opening 18 into a receptacle. The roller 7 is peripherally grooved . and a scraper, carried by the arms 9, is formed with teeth to engage the grooves.
Patent GB-531330-A (GB)
Title: Improvements relating to the control of heating plants of space heating systems
IPC: G05D23/275
Filed: 1939-07-18
Abstract: 531,330. Correspondence control of temperature. LANDIS & GYR AKT.-GES. July 18, 1939, No. 20855. Convention date, April 8. [Class 40 (i)] The temperature of a heating system for a space is controlled by a differential rotary device subject to opposed tongues due to currents controlled respectively by regulators responsive to temperatures inside and outside this space. An induction disc relay comprises a pressure coil 5 and current coils 6, 6<SP>1</SP> in series respectively with rheostats 2, 2<SP>1</SP> operated by tungstallic elements 1, 1<SP>1</SP> responsive to internal and external temperatures respectively. The coils 6, 6<SP>1</SP> produce opposed tongues on the disc 7 whereby contact is made at 11 when the temperature of the heating plant is relatively low and at 12 when it is relatively high. The coil of a relay 13 is thereby energized or shortcircuited to operate contacts 14 and 15 controlling a maintaining circuit for the relay and a relay Ro regulating the heating plant, e.g. opening and closing a damper. The differential device and the regulator 1<SP>1</SP>, 2<SP>1</SP> may be enclosed in a common casing subject to external conditions and the regulator 1, 2 may be applied to the flow pipe of the heating system. By suitable arrangement of the regulating resistance coils the flow pipe temperature may be adjusted according to any temperature curve desired. Opposed motor devices of any type may be used in the differential device.
Patent GB-1436741-A (GB)
Title: Elevator system
IPC: B66B1/46
Filed: 1973-05-02
Abstract: 1436741 Elevator control systems WESTINGHOUSE ELECTRIC CORP 2 May 1973 [17 May 1972] 20908/73 Heading B8L In an elevator control system including circuitry, Fig. 12 (not shown), providing elevator car speed profile control signals, the circuitry includes a terminal slowdown control 558 exerting an overriding control if an overspeed condition is detected for a car approaching a terminal landing. If the car is decelerating at a constant, desired rate the pattern of notches 1042 on blade 1040, detected by light emitting diode; photo-diode, -resistor or -transistor pair 1046, 1048 triggers monostable 1052 controlling switch 1053 intermittently grounding point 1051 so that the output VSE of low pass filter amplifier 1054 is substantially zero see (1084, 1086), Fig. 20A (not shown). In the event of car overspeed, point 1051 is grounded for a relatively longer proportion of the time; see (1084), Fig. 20B (not shown), so that voltage VSE becomes positive (1086<SP>1</SP>). In comparator 1056, voltage VSE is compared with reference V 1  representing a tolerable degree of overspeed, and should VSE exceed V 1  signal SPSW is applied to driver (552), Figs. 12, 21 (not shown), causing elevator speed control to be effected by signal TSAN which results from the summing, in amplifier 1090, of the voltage VSE with the rectified output of a tachometer (not shown) connected to the elevator motor drive shaft, signal TSAN thus ensuring that the car comes to rest once an overspeed condition is detected. Voltage VSE is also compared with a voltage V 2  (V 2 >V 1 ) representing an emergency stop speed, and should VSE exceed V 2 , signal TOVSP initiates an emergency stop state which, in view of memory 1068 is retained until the apparatus is reset at 1082 by maintenance personnel. Switching by driver (552) from normal speed, to terminal overspeed control may be discontinuous, or a blended transition may take place. Driver operation is interlocked with the car doors, or presence of the car near landings or the end of the hatchway. A blade 1040 may be mounted adjacent each end of the hatchway (62), Fig. 1 (not shown), the optical, or alternatively magnetic proximity, detector being on the car, or detector-blade positions may be interchanged. The speed pattern generator disclosed herein and utilized in the absence of any terminal overspeed, is disclosed and claimed in Specification 1,437,742. The floor selector disclosed herein is disclosed and claimed in Specification 1,436,743.
Patent GB-990878-A (GB)
Title: Improvements in or relating to filters
IPC: E03C1/264
Filed: 1962-05-31
Abstract: A removable strainer, adapted to seat over the grille of a waste outlet of a bath or sink, is in the form of an apertured disc or plane spiral, provided with a central inclined tab for removal.  The disc may be constructed of sheet aluminium, Figs. 1 and 2 (not shown), or moulded plastic, Figs. 3-5 (not shown).
Patent GB-224018-A (GB)
Title: Improvements relating to seats for folding chairs
IPC: A47C4/30
Filed: 1923-08-18
Abstract: 224,018. Willson, J. S. Aug. 18, 1923. Seating-surfaces, attaching.-The canvas &c. 4 of a folding chair is fitted at one or both ends with a rod 2 the ends of which are supported on springs 7 fitted to recesses 6 in the side-rails 1. The pockets 6 are closed by slotted plates 3. one of the rails having a hole 9 for assemblage of the rod 2.
Patent GB-663762-A (GB)
Title: Improvements in and relating to portable liquid dispensing units
IPC: B67D7/22
Filed: 1948-08-09
Abstract: 663,762. Liquid dispensing apparatus. BECK & CO., Ltd., and SOAR, H. G. June 23, 1949 [Aug. 9, 1948], No. 20973/48. Class 116. [Also in Group XXIX]. A portable liquid delivery unit attached to the delivery end of a hose comprises a meter driving an indicator which continuously registers the amount delivered, means manually operable to open a control valve to start delivery and maintain the valve against being closed, and automatic means driven by the meter for closing the valve only at permanently set delivery volumes and when it is not maintained open by the operator, the automatic means holding the valve open at all other volumes. On depressing the trigger T against the spring 52, Fig. 1 the adjustable lever 88 opens an auxiliary valve 90a to relieve pressure liquid entering via passage 93 from behind a piston 91 so that pressure acting on the annular surface 98 moves the piston away from a seat 94 and liquid flows from the inlet 118, past a flow meter, which may be of the rotating and reciprocating piston type as described in Specifications 663,750, 663,796, I Group XXVII], and 663,797, and through a passage 124 to an outlet passage 18 where it opens an outlet valve 20 described in Specification 658,443, [Group XXIX]. The trigger also shifts a rod 46 leftwards out of a notch in a disc 38 rotated by the meter through gears 134, 24, 36, so that the notch passes the rod each time unit volume of liquid is delivered. If the trigger is released the valve V remains slightly open to pass a reduced flow and the rod 46 bears on the face of the disc 38, the valve closing when the rod enters the notch. The gear 24, Fig. 3, also drives through a gear 26, spring clutch 29 and shaft 28 a " minute " hand m and through reduction gearing 31 and spring clutch 32 a sleeve 34 carrying an "' hour " hand h of a volumetric delivery indicator at the rear of the delivery unit. The flow cannot be restarted until the hands are returned to zero by the knob 78 and ratchets 80, 81 to allow the spring 60, Fig. 4, to pull a lever 54 freely pivoted at 56 into a notch 58 in the sleeve 34. This allows a spring 64 to turn another freely pivoted member 62 so that a notch 76 engages a pin 74 on a freely pivoted lever 70 to move this lever out of a notch 50 in the rod 46 so that the rod may be shifted by the trigger. When flow commences the sleeve 34 rotates, the lever 54 rides out of the notch 58 and through its notch 68 engaging a pin 67 on the member 62 tensions the spring 72 connected to the member 62 so that the lever 70 is pressed on the side of the rod 46 ready to snap into the notch 50 and lock the rod against trigger movement.
Patent GB-1306325-A (GB)
IPC: B60S9/12
Filed: 1971-04-19
Abstract: 1306325 Hydraulic motor control circuits RUSTON-BUCYRUS Ltd 19 April 1971 [24 Feb 1970] 21116/71 Heading F1P A blast hole drill comprising a mast 6 Fig.1 operating means 7 mounted on a platform 5 which is rigidly secured to and above a crawler 1 is raised so that the crawler is free of the ground during drilling and is subsequently lowered so that the crawler supports the substructure 5 and 7 during transport to a different location by means of a front double acting hydraulic jack 2 Fig.2 having its axis lying in the vertical plane in which lies the longitudinal axis 8 of platform 5 and by means of two rear jacks 3, 4 on either side of axis 8 rotate axes lie in a vertical plane which intersect platform 5 to form a transverse axis 9; control of the fluid supply to jack 2 or the exhaust therefrom being effected a solenoid operated proportioning valve 17 responsive to electric signals generated by a level sensor 30 and fluid control for jacks 3, 4 being similarly effected by a proportioning valve 24 operated by a solenoid 39 responsive to electric signals generated by a level sensor 31 whereby during raising and lowering of the drill apparatus the platform 5 is automatically maintained level. To raise platform 5 so that crawler 1 is clear of the ground a manual switch 47 is closed to energise a solenoid 45 and move a closed centre distributing valve 12 to the left so as to connect a pump 13 to the inlet 16 of valve 17 which latter distributes 1/3 of the pump delivery to jack 2 and the remainder to valve 24 which then supplies jacks 3, 4 equally. Assuming platform 6 remains level the solenoid 20 of valve 17 remains unenergized but in the event of uneveness of  ground resulting in platform tilting about axis 9 a pendulum tapping of a resistance 34 of sensor 30 delivers a signal through an amplifier 35 and closed switches 40, 41 to solenoid 20 which then positions valve 17 to correct the tilt. Simlarly when the platform tilts about axis 8 solenoid 29 of valve 24 receives signals from sensor 31. When platform 5 is raised sufficiently that the jacks take about 80% of the load i.e. when the crawler is about to leave the ground, series arranged fluid pressure responsive switches 56 to 58 in series with a time delay 60 open a switch 61 in series with the closed manual switch 47 thereby closing valve 12 after such an interval that the crawler is clear of the ground. To lower the apparatus from the drilling position a manual valve 49 is closed which thus energizes solenoid 48 to move valve 12 to its reverse position and also energizes a coil 50 which opens switches 40, 41, 43, 44 and closes switches 52 to 55. The pump delivery is thus connected to the rod ends of the jacks and the head ends thereof discharge through valves 12, 17, 24 to a sump 11. When the crawler touches the ground a momentary pressure rise in line 15 opens a switch 62 to de-energize solenoid 48 of valve 12.
Patent GB-1010787-A (GB)
Title: Evaporator
Inventor: LUMLEY GWILYM IVOR
IPC: B01D1/22
Filed: 1963-05-27
Abstract: 1,010,787. Evaporators. MONSANTO CHEMICALS Ltd. March 18, 1964 [May 27, 1963], No. 21157/63. Heading B1B. The efficiency of a tubular evaporator of the climbing film type is increased by coaxially suspending a solid rod 5 or closed tube within the tube 1, the rod having a diameter of not less than <SP>1</SP>/ 3 , and preferably not more than ¥ the internal diameter of the tube 1. Liquid to be evaporated is fed to the base of tube 1 and heated during its passage up the tube by steam, at e.g. 40 pounds per square inch, or a heat-transfer liquid being passed through a jacket 6. The mixture of liquid product and vapour leaves the evaporator via a tube 4 connected in series to a vapour-liquid separator, a condenser and receiver, and a mechanical vacuum pump. In a modification the rod is held in position by spider members between it and the tube wall, instead of being suspended from a plug 3. The tube is constructed of mild. steel, stainless steel, glass, or copper or metal alloy.
Patent GB-1163206-A (GB)
Title: Containers for Tetrahedral Packages
Inventor: NORRIS CARLISLE JAMES
IPC: B65D75/50
Filed: 1967-05-08
Abstract: 1,163,206. Packaging tetrahedral containers; closure for cartons. TETRA PAK Ltd. 12 Feb., 1968 [8 May, 1967], No. 21237/67. Headings B8C and B8P. A lid for a carton holding tetrahedral articles, presents a flat outer surface and has an inner surface shaped to bear against the articles to hold them steady. The carton may be as described in Specification 1,148,924. The lid is formed from a hexagonal sheet 1 providing the outer surface. Upon folding, a sheet 2 forms an inturned pyramid which bears on the stacked articles, and flaps 8, which may alternatively be attached to edges of sheet 2, form the lid sides.
Patent GB-940111-A (GB)
Title: Electric motor arrangement
IPC: H02K7/102
Filed: 1962-06-01
Abstract: 940,111. Motor driving arrangements. BENDIX CORPORATION. June 1, 1962 [June 14, 1961], No. 21284/62. Heading H2A. [Also in Division F2] An electric motor arrangement 10 has the motor armature 13 secured on a tubular shaft 20 which is connected to an output shaft 23 extending therethrough by a friction coupling comprising at least one friction element, e.g. ball 54, received in an aperture 51 in the output shaft and spring-pressed into frictional engagement with the inner surface of the tubular shaft, and includes a braking device 16 operable to apply a braking couple to the output shaft on deenergization of the motor. This arrangement provides almost instantaneous stopping of the relatively low-inertia output shaft 23 and gearing 15, whilst the higher-inertia armature 13 stops less quickly by being permitted limited relative rotation by the coupling. The coupling may comprise one or more pairs of balls 54, 55 each pressed outwards by a common compression spring 50 and arranged in one or more helical arrays along the shafts; one pair engages a circular groove 65 in the shaft 20 to locate the shafts axially. The braking device 16 comprises a braking surface 30 frictionally engaged by a disc 25 loaded by a spring 33 and adjustable screw 34. Energization of the winding 32 retracts a washer armature 31 thereby releasing the brake. The motor has forward and reverse series field windings 60, 61, Fig. 3, selectable by a double throw switch 63, and the brake winding 32 is connected in either series or parallel with the motor windings.
Patent GB-575691-A (GB)
Title: Improvements in or relating to photographic processes and materials
IPC: H01J29/86
Filed: 1943-12-20
Abstract: 575,691. Dyed anti-halation and emulsion layers. HERCOCK, R. J., and SMITH, R. C. M. Dec. 20, 1943, No. 21304. [Class 98 (ii)] Photographic material for recording without halation the trace of a cathode-ray oscillograph comprises a silver halide emulsion, containing a uniformly distributed dyestuff which absorbs light of the range of wavelengths to which the emulsion is sensitive, mounted upon a support, and a similar dyestuff contained in the support or in a layer between the emulsion and the support or, where the support is transparent, on the side remote from the emulsion. Preferably, the emulsion layer is blue-sensitive and the dyestuff yellow and removable in the developing bath, e.g. Tartrazine. A mixture of a red dye and Fast Oil Yellow absorbing green and blue respectively may be used to dye the support. The effective anti-halation density of the support should be from two to three times greater than its actual density. Where the dyestuff layer is present otherwise than as the support, it may be of gelatin, agaragar, polyvinyl resin or polymerized methyl methacrylate, polystyrene or an alkyd resin and contain either Auramine or Benzourin. The emulsion should be as hardened and compact as possible to facilitate processing. Specification 417,753, [Group XXXVIII], is referred to.
Patent GB-597468-A (GB)
Title: Improvements in or relating to cathode-ray tubes having an electrostatic projection lens and circuit arrangements comprising such a tube
IPC: H01J29/52
Filed: 1945-08-21
Abstract: 597,468. Cathode-ray tubes. PHILIPS LAMPS, Ltd. Aug. 21, 1945, No. 21304. Convention date, March 9, 1940. [Class 39 (i)] In a cathode-ray tube a diaphragm 11 delimiting the beam 13 is placed beyond the cross-section 6 of the beam which is projected on the picture screen by the electrostatic lens 4, 5 and is adapted to transmit only that part 14 of the electrons diverging from the path of the effective beam which does not directly adjoin the beam. As shown in Fig. 2, the diaphragm is a small ring joined to the cylinder 4 by narrow arms 12. It is found that only the diverging electrons directly adjoining the beam give harmful secondary emission when they strike the end diaphragm 7 of electrode 5, so that the remainder can be allowed to pass without harm. Further, since only a small number of electrons is collected by diaphragm 11, undesirably large fluctuations of the potential of electrode 4 are provided ; what small fluctuation remains can be turned to account by arranging that the resultant change in focal length of lens 4, 5 shall exactly compensate for the axial movement of cross-section 6 during modulation. Pre-concentration is effected by lens 2, 3, electrode 3 being made unitary with electrode 4 to form a long fieldfree tube which absorbs any secondaries emitted by diaphragm 11. The subject-matter is identical with that of Specification 549,476.
Patent GB-187072-A (GB)
Title: Improvements in taps and nozzles used in filter presses
IPC: B01D25/12
Filed: 1921-08-11
Abstract: 187,072. Newton, J. Aug. 11, 1921. Filter-presses.-The nozzles b of a filter-press for potter's slip are attached to the press cloths c in the usual way and a cloth tube f is attached to the inner end of each nozzle by means of a cone d and nut e or in any other suitable way. Metal pipes g fixed to the taps a are passed through the nozzles and the tubes f, the pressure within the chambers causing the tubes to grip the pipes. Specifications 15503/12 and 22294/12 are referred to.