baber/WOPTO huggingface dataset:
Patent GB-815469-A (GB)
Title: Improvements in or relating to processes for the production of shaped articles
IPC: C04B35/58
Filed: 1955-07-01
Abstract: Refractory articles are obtained by shaping a paste of electrically conductive silicides and/or borides of Group IV to VI metals with a liquid hydrolysable silicic acid ester or a solution of such an ester, hydrolysing, drying and sintering. Pre-sintering may be carried out in a non-oxidizing atmosphere at not above 1450 DEG C. Final sintering is either completely in a non-oxidizing atmosphere or partly in an oxidizing atmosphere, the temperature in either case being between 1500 DEG  and 1800 DEG C.  The article has a coating of a continuous skeleton of silica, the silica being 0,5-20 per cent by weight.  Optional additions are silicon carbide or one or more of thoria, ceria, zirconia, alumina, beryllia, magnesia, silica and chromium oxide.
Patent GB-822564-A (GB)
Title: A control system for a device to be controlled
IPC: G05B5/01
Filed: 1956-06-21
Abstract: 822,564. Automatic speed-control systems. UNITED AIRCRAFT CORPORATION. June 21, 1956 [June 23, 1955], No. 19244/56. Class 38 (4). In a system wherein speed of a propeller is controlled by varying its pitch at a rate proportional to the error, correction is opposed by a rate-of-pitch-change signal within predetermined error limits. An error signal developed at point 82, Fig. 1, by the unbalance of bridge 70 as a result of the frequency change in generator 68 by a speed deviation of engine 10, is applied to effect pitch correction through a chopper amplifier 86 and a proportional solenoid 60. Pitch change is effected by a cam 16 through piston 14 and hydraulic pump 44 in accordance with the positioning of valve gear 40, 42 by the solenoid 60 through fluid pressure control gear 58, 62, 64, rack 56 and pinion 54, and threaded sleeve 38 in the internally threaded member 32. The opposing rate-of-pitch-change signal which is communicated through shaft 20, differential gear 22, and gear-wheels 30 and 88 imparts a return motion to sleeve 38 to cut off the hydraulic pressure, and moves a potentiometer arm 94 to apply, to the chopper amplifier input, a signal proportional to the rate of correction and limited by the reversed rectifiers 108, 110, whereby hunting is avoided and the sensitivity of the system for large errors increased. The signal is opposed to the error signal.
Patent GB-402181-A (GB)
Title: Improvements in or relating to television and the like systems
IPC: H04N3/20
Filed: 1932-07-07
Abstract: 402,181. Oscillographs. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Hayes, Middlesex, and MANIFOLD, M. BOWMAN-, Heathcot, Worplesdon Station, Surrey..July 7, 1932, No. 19293. [Class 37.] A cathode ray is periodically deflected over a screen 4, Fig. 1, under the control of synchronising signals and is rendered innocuous to the screen by auxiliary apparatus when the deflection fails. A condenser 7 is charged slowly, and discharged periodically through a valve 5 when signals are applied to the latter. A saw-tooth voltage is thus applied to deflecting-plates 8, 9 in the cathoderay tube 1. A neon tube 10 is shunted across the condenser and discharges it when the voltage across it exceeds the normal owing to failure of the synchronising signals. The ray is thus kept in motion over the screen. The saw-tooth voltage may be applied to an amplifying valve, Fig. 2 (not shown), the anode current of which is passed through deflecting-coils, Fig. 3 (not shown). In Fig. 4, the safety circuit comprises a valve 15 with such a high positive potential on its cathode 16, that anode current only flows when the voltage on the condenser 7, to which the grid 17 is connected, becomes abnormally high. This current decreases the potential of a control electrode 19 to reduce the intensity of the ray. According to modifications : the saw-tooth voltage is applied to an amplifying valve, Fig. 5 (not shown) and the anode current passed through deflecting-coils, Fig. 6 (not shown) ; the plate of the auxiliary valve is connected to deflecting-coils, Fig. 7 (not shown). In Fig. 8, the deflecting-current in coils 13, 14 passes through a rectifier 25, the output from which energizes a relay 26 to apply a normal potential to a control electrode 41 from a battery 28. On failure of the deflecting current, a battery 29 supplies a higher negative potential to reduce the intensity of the ray. A modification using electrostatic deflection is described, Fig. 9 (not shown). To prevent the ray coming to rest before being extinguished on switching off, the cathode 2, Fig. 10, of the tube is positively biased from a potentiometer 35 connected to the rectifier 33 supplying anode potential to the tube, and the control grid 41 is negatively biased from a potentiometer 37 connected to the rectifier 44 supplying potential to the generator 23 of deflecting currents. The time constant of the former biasing-circuit is greater than the latter, so that the negative grid tends to remain high in the initial period after switching off the source 32. When the deflecting-circuit and the heating circuit of the cathode of the tube are controlled by a common switch, a resistance is inserted in the heating circuit so that, on switching on, the deflecting circuit operates at least as soon as a visible spot is formed on the fluorescent screen.
Patent GB-720098-A (GB)
Title: Improvements in or relating to the lining of pipes
IPC: B28B19/00
Filed: 1951-08-16
Abstract: <PICT:0720098/III/1> <PICT:0720098/III/2> <PICT:0720098/III/3> In lining a pipe by passing a spreader through it to force cementitious and like material on to the wall, according to the "Tate" process, clamping means is provided for removably holding over the end of the pipe a closure plate for blanking off the pipe, such plate having an aperture or apertures to accommodate the haulage cables or chains by which the lining tool is advanced and to allow the escape of excess lining material as the tool approaches the plate.  The device may be combined with the apparatus described and claimed in Specifications 685,637 and/or 685,638.  As shown, a four-part clamp 1 has arcuate faced portions 2 to fit against a pipe 3, near its end, the four parts having a flange 1a and being drawn together by clamping bolts (not shown) so as to grip the pipe.  A short tubular extension 5 flared at 5a is adapted to abut the flange 1a, an interposed resilient packing ring 6 making a tight joint when clamping screws 5c passing through lugs 4 are tightened.  At the outer end of the extension 5 is attached an open-topped guide means 11, this guide means being secured to the extension 5 in the same manner as the extension is secured to the pipe.  A slotted closure plate 12 has an aperture at 12a extending from one side so that it may pass over the haulage cables 13 passing out of the pipe and also to provide an outlet for any cementitious material as the tool 7 moves up to the plate in the final stage of its operations.  There may also be a second plate, with its aperture out of register with that in the plate 12, to close the aperture 12a except at the centre where the cable passes through it.  A piston-like reaction member as shown in Fig. 3 may be used until leading discs 16 and 17 have passed out of the extension 5 whereupon these discs are detached and the slotted plate 12 is inserted in the guide-means 11 to form a support for the material 10 during the last stage of the lining process. Alternatively, the extension 5 is not used, the guide-means 11 and the plate 12 being mounted directly on the end of the pipe by means of clamping screws (not shown) adapted to be secured to the lugs 4 of the clamp 1, the unlined portion at the end of the pipe when the tool 7 meets the plate 12 being finished off by hand.  In another modification, the discs 15, 16 and 17 of the reaction member are connected together by means placed near the centre and, after the two leading discs have passed the frame 11, the plate 12 is inserted to support the trailing disc 15 and the cementitious material 10.
Patent GB-372997-A (GB)
Title: Improvements in or relating to casting hollow metal bodies in chill moulds rotatableabout vertical axes
IPC: B22D13/10
Filed: 1931-07-04
Abstract: 372,997. Casting-machines. MANNESMANNROHREN-WERKE, 1B, Berger Ufer, D³sseldorf, Germany. July 4, 1931, No. 19333. Convention date, Dec. 10, 1930. [Class 83 (i).] Metal-pouring. - The base of a vertical centrifugal chill has a recess to receive the molten metal which communicates, by means of one or more channels, with the bottom of the mould walls. The base a may be recessed to receive a cup b and tubes c of refractory material which receive the molten metal without splashing.
Patent GB-1507733-A (GB)
Title: Coating method to improve adhesion of photoconductors
IPC: C23C14/08
Filed: 1975-05-08
Abstract: 1507733 Preparing photo-receptors XEROX CORP 8 May 1975 [10 June 1974] 19376/75 Heading C7F [Also in Division G2]  In preparing a flexible photo-receptor, a clean oxide-coated substrate is coated with photoconductor by exposure to a vapour cloud comprising ionized and un-ionized photo-conductor produced by glow-discharging evaporated photo-conductor. The substrate may be a foil of Cu, steel, Al, brass, Zn or Ni or a polymer coated with one of these; it may be oxidized by exposure to glow-discharge in a gas containing at least I vol % available oxygen, e.g. air, Ar/O 2 , Ar/air, Ar/CO 2  or N 2 /O 2  at up to 30Á Hg pressure using a glow-bar positioned between the holder for photo-conductor and the substrate; this produces a 10-200Š oxide layer and heats the substrate to 55-80‹C. Then, one or more crucibles containing Se, optionally alloyed with Te, Ge, Sb, Bi, As and/or Cl, Br or I is heated by resistance heating, ion- or electron-beam, to produce a vapour cloud, which is subjected to glow discharge; the oxidation and deposition steps may be sequential or may overlap. Suitable apparatus is illustrated diagramatically.
Patent GB-1150382-A (GB)
Title: Improvements in Screws, and a Screw Driver therefor
Inventor: PODOLSKY ROMAIN
IPC: F16B23/00
Filed: 1966-05-03
Abstract: 1,150,382. Screwdrivers. R. PODOLSKY. 3 May, 1966 [17 May, 1965], No. 19389/66. Heading B3N. [Also in Division F2] A screw has a socket e comprising at least three surfaces, forming a closed figure in transverse cross-section, and extending parallel to the longitudinal axis of the screw, and a screwdriver with a shank having a portion of the same cross-section with sides extending parallel to the axis of shank is adapted to be fitted into the socket. In Fig. 2 the socket has a crosssection with four concave sides, and a further recess t is of the same cross-section but smaller. The screw-driver, Fig. 8, has a portion E with four concave sides and a smaller portion T of the same shape. The cross-section of the socket, or screw-driver shank, may have three concave sides, or be square or hexagonal. The crosssection of the smaller portion may be orientated differently to that of the larger portion. The cross-section with four concave sides may have the corners blunted.
Patent GB-531552-A (GB)
Title: Improvements relating to steam heating radiators more particularly for railway vehicles
IPC: B61D27/00
Filed: 1939-07-04
Abstract: 531,552. Heating radiators. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and BARTY, T. July 4, 1939, No. 19504. [Class 64 (ii). A steam heating radiator applicable to railway vehicles comprises gilled parallel tubes 1, 2 connected by an inlet header 3 and an outlet header 4. A thermal control tube 6 has one end slidably mounted in a lug 7 on the header 4 while the other end controls the inlet valve 14 through a rod 18. A nut 9 is threaded on the tube and is acted upon by a spring 10 so that an adjustable nut 11 bears against the lug 7. The tube 6 is surrounded by a tube 22 one end of which rests against the bushing 21 and the other end against the nut 9. The valve 14 is controlled by the difference between the expansion of the hot radiator and the cool tube 6. If the tube 6 becomes heated due to the radiator being in a confined position, the compensating tube 22 is also heated and moves the nut 9 to an extent sufficient to keep the effective length of the tube 6 constant. In a modification, Fig. 2, not shown, the rod 6 is extended outward and carries a hand-rotated sleeve co-operating with a collar having an inclined surface, whereby the steam inlet valve may be closed by hand when desired. In an alternative, Fig. 4, not shown, the tube 6 may be hand actuated by means of a forked lever.
Patent GB-237928-A (GB)
Title: Method and apparatus for washing minerals or coal
IPC: B03B5/68
Filed: 1925-08-04
Abstract: 237,928. Ranwez, G., (Assignee of Bede, J.). Aug. 2, 1924, [Convention date]. Jigs.-Minerals, coal, &c. are classified by passing them with a stream of water down a trough 1, in which they receive a preliminary classification in layers, the separation being compJeted by pulsations of water admitted through screens 6 at intervals along the trough. Each screen 6 is provided with adjustable sluices 9, 10 and with an outlet 7 for the separated heavy product, the lightest material being finally discharged from the bottom of the trough 1.
Patent GB-748908-A (GB)
Title: Improvements in or relating to lightning arrester devices
Inventor: NYE RONALD OLIVER
IPC: H01T4/12
Filed: 1953-07-15
Abstract: 748,908. Two-part couplings. HIVAC, Ltd. June 24, 1954 [July 15, 1953], No. 19680/53. Class 38 (1). In a lightning arrester of the gas-discharge tube type having insulating end caps 12 and longitudinally extending contact blades 14, one end of each blade is bent at right angles and carried round the outside of the adjacent end cap in a channel 20, 21, Fig. 6, whilst the other end is forked and held trapped between the adjacent end cap and the tube 10. The caps have holes 23 for the lead-in wires which are soldered to the bent-over ends of the blades. In a modification, Figs. 9 and 10, the interior of each end cap has recesses 28 to receive the forked end of a contact blade and the external channel 20, 32 extends only half way across the end of the cap.
Patent GB-530945-A (GB)
Title: Improvements in and connected with fuel-injection pumps for internal combustion engines
IPC: F02M59/36
Filed: 1939-07-07
Abstract: 530,945. Fuel injection pumps. DAIMLERBENZ AKT.-GES. July 7, 1939, No. 19806. Convention date, July 12, 1938. [Class 102 (i)] A fuel injection pump for an internal combustion engine particularly for motor vehicles has an adjustable pressure operated piston valve 15 located in the passage leading to the injection nozzle and serving to adjust the timing and quantity of the injection independently of pump piston adjustment. In one form the main pump piston 2, operated by a, cam 4 has an inclined control edge 5 leading from a longitudinal groove 6 to an annular groove 7 in the piston. A fuel supply passage 11 above the piston and an overflow passage 12 leading into a discharge pipe 14, which may be common to several side by side pump cylinders, both open into a space 10 above the pump. The piston valve 15 located above the space 10 has a screwed stem 16 which is adjustable by nuts 17, 18, the lower nut being urged by a spring 19 to engage a slotted flange on the nut with a seating 20 on the guide 21. A control bore 26 in this valve leads to a radial passage 25 communicating with an annular groove 22 which coacts with a shoulder 23 on the guide. A two-part abutment 28 limits upward movement of the valve by engaging the stem 16 and the bore 29 leads to the injection nozzle. In operation, on descent of piston 2 fuel is drawn into the space 10 and on upward movement the fuel is discharged through passage 12 until the upper edge 21 cuts off passage 12. Further upward movement compresses the fluid in space 10 until the valve 15 is lifted. As soon as the groove 22 clears the shoulder 23 fluid flows into space 24 and thence to the injection nozzle, the flow continuing until the curved edge 5 rises above outlet 12 thus allowing liquid to escape from chamber 10 along pipe 12. This point may be adjusted by rotating the piston 2 from gearing 8. The relief of pressure from space 10 causes the valve 15 to be returned by its spring and stops flow to the nozzle. The timing of the' start of the injection period, which is terminated by the edge 5, may be controlled by adjustment of the valve 15 by its screw. The adjustment also varies the capacity of the space 10. In a modification the flange of the nut 17 forms a continuous surface so that backward surge of liquid fuel is prevented. In a further modification, Fig. 3, the passage 26 may have a number of radial ports 30 ... 32 of different levels which come into action successively as the pump is adjusted for progressively larger deliveries, resulting in increasing travel of the valve 15. In another modification, the piston 2 may have an inclined upper edge 2<SP>11</SP>, Fig. 5, to control the start of the injection period instead of the edge 5 controlling the termination thereof. In other modifications, the piston valve 15 may be of greater or less diameter than the pump piston.
Patent GB-496823-A (GB)
Title: Improvements in bonnet fasteners for motor vehicles
IPC: E05B65/19
Filed: 1937-07-17
Abstract: 496,823. Motor - bonnet fastenings. RUSSELL & SONS, Ltd., S., and RUSSELL, E. G. July 17, 1937, No. 19822. [Class 44] A hook fastening for motor-vehicle bonnets comprises a one-piece body 1, preferably diecast with integral attachment lugs 2 and screws 3 by which it can be secured to the bonnet,the body having a longitudinal groove 7 continuing into a slot 5 with a lateral branch 6 at its lower end, a sleeve 8 slidable within the body and having a projection 10 slidable in the groove &c. 7, 5 and engageable in branch 6 by rotation to retain the fastening in release position, a stem 11 secured within the sleeve as by a pin 14, the stem having a hook 12 engageable with a stirrup 13 on the chassis and projections 16 which limit the stem's upward movement, and a compression spring 15 housed within the sleeve and body, the spring abutting against the upper end of the sleeve and the lower end of the body to urge the hook upwards into engagement with the stirrup. Specification 362,126 is referred to.
Patent GB-1485205-A (GB)
Title: Peristaltic pump
IPC: F04B43/00
Filed: 1975-05-12
Abstract: 1485205 Peristaltic pumps J GALEA 12 May 1975 [29 May 1974] 19822/75 Heading F1U A peristaltic pump comprises a hose 15 which seats against the inner cylindrical surface 2 of a stator 1, the hose being compressed by bars 13 fixed to members 12 rotatably mounted on axles 6 which are supported on a carrier 5 rotatably mounted on a shaft 3 coaxial with stator 1, sprockets 4, 11 on the shaft 3 and members 12 being connected by a chain 14 so that clockwise rotation, Fig. 2, of shaft 3 produces an anticlockwise movement of members 12, the frictional engagement of bars 13 with hose 15 causing the members 12 to orbit in a clockwise direction from the hose inlet 16 to the outlet 17. Axles 6 are mounted in carrier 5 by means of pistons 8 attached to the axles, which pistons are maintained in their radial position by hydraulic fluid 9 in carrier 5. Adjustment of a threaded plunger 10 alters the radial position of axles 16. Hose 15 is located between a pair of resilient rings 18. A pulsation damping chamber may be provided in the hose wall at its outlet, Fig. 4 (not shown), and the hose may be of reduced cross-section at its centre portion, Fig. 3 (not shown).
Patent GB-1509800-A (GB)
Title: Optical couplers for rectangular cross-section wave-guide
IPC: G02B6/34
Filed: 1975-05-12
Abstract: 1509800 Light guides SIEMENS AG 12 May 1975 [10 July 1974] 19828/75 Heading G2J Two rectangular wave-guides 3, 4 are coupled by a flexible, unclad glass fibre 7 of rectangular crosssection which is secured (e.g. by being pressed, clamped or glued) to coupling zones 5, 6 on the wave-guides. In the embodiment of Fig. 1, the R.1. n 1  of the thin laters 5, 6 forming the coupling structure is lower than the R.l.s no and n 2  of the fibre 7 and the wave guides 3, 4 respectively. In a modification, Figs. 5, 6 (not shown) n  1  is greater than n 2 . In the embodiment of Fig. 7 the ends of the wave-guides 3 (4) are formed with a periodic thickness (as shown) or a periodic value of refractive index. The former may be carried out by holographic methods in photo-lacquer or by etching or scratching a thin film or by pressing into a thermoplastic film. The latter may be carried out by holographic methods, ion implantation through a mask, selective diffusion or by heating a film provided with a suitable mask.
Patent GB-822664-A (GB)
Title: Improvements relating to vibratory conveyor chutes
IPC: B07B1/44
Filed: 1957-06-24
Abstract: 822,664. Jigging conveyers. BUHLER GEB. June 24, 1957 [July 24, 1956], No. 19864/57. Class 78 (1). [Also in Group II] A conveying means having an eccentric drive has two coupled reciprocatable vibrator shoots, such as delivery troughs, riddles and the like, one shoot being suspended by hangers and the other carried by slide shoes. As shown in Fig. 1, an upper shoot comprises a sieve carrier 2, suspended by hangers 3 adjustable in length by turnbuckles 23, its rest position being determined by springs 22 which are tensioned adjustably by turnbuckles 24 attached to the hangers in adjustable position by set screws 25. A lower shoot comprises a delivery trough 5 supported on slide shoes 6. The sieve carrier 2 has two brackets 10, Fig. 2, in which is journalled a shaft 11 provided with an eccentric 12 and pulleys 14 and 15 which have counterpoises 19. A motor 17 drives the eccentric 12 via a belt 16 to operate a rod 13, coupled to the eccentric and pivoted to the trough 5, to cause the trough to slide on its shoes 6, the upper shoot then being set in motion by reaction. The stroke of the carrier 2 and trough 5 can be adjusted by attaching a weight to one of them. As shown, the trough 5 has an inclined bottom 28 of subdivided slope to cause the contents to move towards its ends; alternatively the bottom may be of one slope throughout.
Patent GB-699606-A (GB)
Title: Improvements in and relating to current regulators
IPC: G05F1/325
Filed: 1952-08-07
Abstract: 699,606. Automatic regulation. GENERAL ELECTRIC CO. Aug. 7, 1952 [Aug. 8, 1951], No. 19911/52. Class 38 (iv). In a current regulator for supplying substantially constant current of selectable value to a variable impedance load 1 from a substantially constant voltage source of A.C. supply 2, an input auto-transformer winding 7 is provided on the leg 4 of a magnetizable core and is connected through a selector switch 10 to the source 2. A coil 11 is provided on the leg 5 of the core, one end of which is connected to the terminal 8 of the coil 7 and the other end to a capacitor 12 which is connected through a switch 13 to a selected tap on the output of the auto-transformer 7, a coil 14 being inductively coupled to the coil 11 and connected to the load 1. No windings are mounted on the third leg 6 which is provided with an air gap 6a. The leakage reactance of the coil 11 together with the equivalent leakage reactance of the coil 7 referred to the coil 11 is arranged to be substantially equal to the reactance of the capacitor 12 at the operating frequency and by reason of the series resonant nature of this circuit the current in the output winding 14 is maintained substantially constant. The desired value of constant current may be adjusted by means of the switch 13.