baber/WOPTO huggingface dataset:
Patent GB-1450662-A (GB)
Title: Method of and apparatus for controlling amount of electron beam in image pickup tube
IPC: H04N5/235
Filed: 1974-03-08
Abstract: 1450662 Cathode-ray tube circuits HITACHI Ltd and HITACHI ELECTRONICS CO Ltd 8 March 1973 [9 March 1973] 10570/74 Heading H4T The intensity of the scanning beam in a photoconductive type image signal generating tube is controlled as a function of the intensity of the electron beam returned from the tube target. Thus when the intensity of the beam of such a tube is restricted in order to prevent defocussing at the target and a consequent reduction in resolution, the operation of the invention ensures neutralization of charge images caused by high-lights in the object. Fig. 3, shows a first embodiment in which the return beam portion IR of the scanning beam IB is collected by a, specially provided, electrode 10 and subtracted from a reference current IO in a comparative current amplifier 10 the output of which is converted to a corresponding voltage across resistor 14 and supplied to the beam intensity control electrode 15. In a modification of this arrangement the IR current collected by the electrode 10 and the reference current IO may be converted to corresponding voltages and a voltage type comparison amplifier employed for amplifier 13. By suitable selection of circuit parameters the return beam intensity IR may be arranged to approach a constant value even if the brightness of the object varies. Instead of detecting the return beam by means of a specially provided electrode it may be detected via the acceleration electrode 9 or via the mesh electrode (not shown) adjacent the target 11. In an alternate arrangement the intensity of the return beam is derived indirectly. Thus, IB=IR+IS where IB is the intensity of the scanning beam, IR that of the return beam and IS the intensity of the signal output current. Additionally, the Specification gives the relationship IB=<SP>1</SP>/ α .IC, where IC is the cathode current and α is a proportionality constant, and from the above equations the return beam intensity is given by IR=<SP>1</SP>/ α . IC-IS. Fig. 5, shows an embodiment employing this relationship. Thus, the cathode current portion <SP>1</SP>/ α IC is derived from a shunt circuit 16 and supplied to an operational circuit 17 having the signal current IS derived from the target 11 as second input. Circuit 17 then supplies the quantity <SP>1</SP>/ α IC-IS and this quantity is supplied to the comparative amplifier 13 having the reference current source IO as second input. Amplifier 13 then operates as in Fig. 3. Fig. 6, shows an equivalent arrangement in which quantities are derived in terms of voltages instead of currents.
Patent GB-105821-A (GB)
IPC: F24H1/50
Abstract: 105,821. Gould, H. W. May 31, 1916. Boilers of the kind having primary and secondary heaters A, B for heating and circulating water, have the cold water from the supply cistern fed with the lower part of a secondary heater B as by a pipe b<3>.
Patent GB-701883-A (GB)
Title: Improvements in or relating to electric motor systems
IPC: B60L9/12
Filed: 1952-04-28
Abstract: 701,883. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 28, 1952 [May 5, 1951], No. 10623/52. Class 38 (2) In a filter comprising an inductor 24 and capacitor 23 in series connected across a D.C. motor fed from a supply having a substantial ripple, the inductor impedance is slightly, larger than the capacitor impedance at the ripple frequency A greater capacitor impedance increases the magnitude of the ripple currents through the motor which has an impedance, with a large inductive reactance component: Such an arrangement improves the operation'of a series wound traction motor A supplied through rectifiers 8, 9 carried on the vehicle in a system such as forms the subject of Specification 682,610, in which the D.C. is arranged to have a substantial ripple to reduce telephone interference producing harmonics in the trolley wire 1. To produce sufficient filter capacitance the capacitor may comprise several e.g. 8 units, and when one fails, the capacitive impedance becomes too large and the filter worse than useless. Circuit breaker 21 in the filter supply circuit is then operated by the ripple current caused to flow through relay coil 30 connected in series with blocking condenser 31 and resistor R' across the filter.
Patent GB-552888-A (GB)
Title: Resilient mountings
IPC: B64D27/04
Filed: 1941-08-20
Abstract: 552,888. Resilient mountings. LORD MANUFACTURING CO. Aug. 20, No. 10634. Convention date, Aug. 28, 1940. [Class 108 (iii)] [Also in Group XXXIII] Engines, such as aeroplane engines 3, mounted in an overhung manner on a ring 1 by means of a number of flexible rubber joints 5 are given additional flexibility to accommodate pitch and yaw movements by providing pivots 13 between the rubber joint and the engine or frame. The rubber joint consists of two members each consisting of a stem 8 with a part spherical head 7 connected with one another through the medium of rubber insertions 21 22 and an intermediate shell 23 with central member 25. Either or both of the stems 8 may be connected to a fork 10 connected by a pivot 13 to a bracket 11. Specification 548,527 is referred to.
Patent GB-103441-A (GB)
Title: Improvements in Controllers for Electric Motor Circuits.
IPC: H02P1/26
Filed: 1916-07-27
Abstract: 103,441. Igranic Electric Co., (Cutler-Hammer Manufacturing Co.). July 27, 1916. Controllers, actuating-mechanism for; returned to zero without making starting-connexions.- The moving contacts of a motor-controller which has starting and running positions are operated to those positions by a handle moving in one direction through the operation, and are returned to zero from the running position without reestablishment of the starting-connexions. The movable contacts 18, 19 are carried by a drum 1 mounted on a rectangular part of the controller shaft, and the contacts 4<b>, 5<b>, 6<b> are carried by a drum 2 loosely mounted on a cylindrical part of the shaft. The contacts 4b, 5<b>, 6<b> may be made from a continuous V-shaped plate, as shown in Fig. 3. The drum 2 has peripheral recesses 20 in which engage the depending ends of the contacts 19. When the handle is in its off position, the contacts 4b, 5<b>, 6b engage the fixed contacts Z, and they remain stationary when the handle is moved forward to the starting position, owing to the lost-motion connexion between the contacts 19 and the drum 2. The contacts 18 engage the contacts W, X, Y to short-circuit the fuses 31, 32, 33 and to connect the motor windings 28, 29, 30 in star. When the handle is moved forward to the running position, the two drums move forward together, and the contacts 19 engage the contacts X, Y, Z to insert the fuses and to connect the motor windings in mesh. As the handle is returned to its off position, the contacts 18 and the contacts 4<b>, 5<b>, 6b reach the fixed contacts at different times, so that the star connexions are not completed. The hooked armature 14 of an electromagnet 13 engages a pin 15 on an arm 16 to hold the controller in its on position.
Patent GB-106601-A (GB)
IPC: A41D25/16
Abstract: 106,601. Harris, C. J. A., Blair, F. E., and Harris, E. A., (trading as Harris & Co., C. H. A.). April 18, 1917. Neck-ties; materials for wearing-apparel. -A foundation is formed consisting of a tape or similar material A, B the full length of the necktie, and to which is stitched towards each end a strip of leather, swansdown, or similar material G, H. The foundation is inserted within and stitched to the outer silk cover of the neck-tie.
Patent GB-587874-A (GB)
Title: Improvements relating to radio altimeters or range finders employing pulse transmission systems
IPC: G01S7/282
Filed: 1940-06-21
Abstract: 587,874. Radiolocation. STANDARD TELEPHONES & CABLES, Ltd., and BEATTY, W. A. June 21, 1940, No. 10708. [Class 40 (v)] In a radio system for altitude measurement, range-finding, or the detection of remote objects by transmitting pulses of radio frequency and measuring the echo time, the transmitted pulses have similar growth and decay characteristics, the growth and decay periods being a substantial part of the pulse duration, which is determined by the desired degree of accuracy of distance measurement. The pulses may be generated as described in Specification 580,801 by the employment' of a train of sharp-edged pulses of substantial duration compared with the intervals between them for the derivation of short widely-spaced pulses by the periodic shock-excitation of a tuned circuit or the periodic cutting-off of the supply to an oscillator valve associated with such a circuit. Means are provided for controlling the phase of the surge in the tuned circuit, this phase-controlling means being under the control of means adapted. to alter duration of the controlling pulse. Damped waves are thus generated in the tuned circuit having outstanding peaks of substantially symmetrical form constituting widely-spaced short pulses. The receiver for the reflected pulses is arranged to cover only the band width of the transmitted pulse train.
Patent GB-997561-A (GB)
Title: Process for purifying gaseous formaldehyde
IPC: C07C47/04
Filed: 1964-03-13
Abstract: Formaldehyde of high purity is obtained by contacting crude formaldehyde gas at a temperature above 80 DEG  C., if desired, together with a hydrocarbon of high boiling-point with an alkylene glycol polyether having a molecular weight of 300-5000 in a scrubbing operation in which the alkylene glycol polyether is the scrubbing agent, the alkylene glycol polyether having at least one hydroxy group and being optionally modified by replacing the oxygen atom in the polyether chain with a sulphur atom a nitrogen atom or an acetal group of formula <FORM:0997561/C2/1> in which R is hydrogen, an alkyl group having 1-6 carbon atoms or a cycloalkyl group. Suitable glycol polyethers are, for example, an o ,o 1-dihydroxy ethylene glycol polyether having a molecular weight of 1550 and an o ,o 1 - dihydroxy propylene glycol - 1,2-polyether having a molecular weight of 2000. The scrubbing liquid can be regenerated by treatment with ion-exchange resins.
Patent GB-640892-A (GB)
Title: Improvements in and relating to refrigerator cabinets
IPC: F25D23/08
Filed: 1949-04-22
Abstract: 640,892. Refrigerators. BRITISH THOMSON-HOUSTON CO., Ltd. April 22, 1949, No. 10752. Convention date, April 23, 1948. [Class 29] In a refrigerator cabinet 1 comprising inner and outer walls 2, 3 between which is a n insulating material and which carry a breaker strip 7, a moisture-impervious flexible diaphragm 12 is mounted behind the breaker strip and the space between these two elements is filled with a resilient, compressible h e a t insulant 23 exerting a pressure on the diaphragm. To prepare a topopening cabinet, the cabinet is upended and the intermural space filled through apertures 17, 18 with insulant which may be silica or alumina aerogel or one of the aerogels described in Specification 607,426 or 607,427 The cabinet is then righted and the msulant 23, which may be spun glass, wood fibre or felt, is inserted and then the breaker strip is secured so as to put pressure in the insulant 23. If the intermural insulant settles, the insulant 23 will expand the diaphragm 12 and thus no air space is left between the walls. The diaphragm also acts as a seal presenting ingress of moisture to the insulant.
Patent GB-564996-A (GB)
Title: Preparation of salts of pantothenic acid
IPC: C07C233/46
Filed: 1942-07-31
Abstract: Pantothenic acid salts are obtained by reacting b -alanine with a salt of a  : d -dihydroxy-b  : b -dimethylbutyric acid at 150-200 DEG C.  A non-aqueous solvent may be present.  The b -alanine may be obtained by precipitating by means of a base a solution in a lower aliphatic alcohol of a salt of b -alanine with an acid.  The alcoholic solution of the alanine salt may be obtained by passing bromine into aqueous caustic potash, warming with succinimide and extracting the evaporated product with methanol after acidification with hydrochloric acid. Alternatively, cyanacetic acid or ester may be reduced with hydrogen in the presence of acid, the products evaporated and taken up with an alcohol.  For precipitating the alanine, the ethanolamines, N-morpholin ethanol, N-ethylmorpholine, collidine, 3-propanediol and morpholine may be used.  The salt of a : d -dihydroxy-b  : b -dimethyl butyric acid may be prepared by treating a -hydroxy-b  : b -dimethyl-d -butyrolactone with aqueous sodium hydroxide, saturating with carbon dioxide and evaporating to dryness.  The desired salt is obtained by extracting with methanol and precipitating with acetone.  a  - Hydroxy - b  : b  - dimethyl - d -butyrolactone may be prepared by condensing isobutyraldehyde with formaldehyde in the presence of a soluble cyanide, reacting the formoisobutyraldol with the cyanide in the presence of a soluble bisulphite and hydrolysing the formoisobutyraldolcyanhydrin so obtained.  The lactone may be isolated by evaporating, extracting with a solvent such as acetone, dioxane, methanol, methylethylketone, pyridine or benzene and fractionating.  In examples, sodium and barium salts of a  : d -dihydroxy-b  : b -dimethylbutyric acid are used, the corresponding salts of pantothenic acid being obtained.
Patent GB-253306-A (GB)
Title: Improvements in or relating to the hanging and operating of drive and other gates
IPC: E05F11/04
Filed: 1926-01-23
Abstract: 253,306. Harrington, (D. H. Eden), Earl of. Jan. 23, 1926. Operating gates from a distance by hand by crank and lever mechanism and chain and cord arrangements.-The gate 7 is mounted on a pin 11 which has an eccentric 10 mounted in a socket 9<a>, and the lower end of the pin 11 carries a series of pulleys 12 which are connected by cables to pulleys 15 mounted on the lower end of the hollow operating shafts 14, Fig. 2. The shafts 14 are mounted in posts positioned at suitable points on either side of the gate. In each shaft is mounted a. rod 16 jointed at 16<a> and provided with lugs 16<b> slidable in slots 14a in the shaft. The upper end of the rod 16 has a knob 16<c>. To open or close the gate the rod is withdrawn and allowed to fall into the dotted line position so as to engage with a notch 13a in a nut 13; the rod is then used as a lever to rotate the shaft and its pulley. The disc 10 is displaced to open or close the gate.
Patent GB-371587-A (GB)
Title: Improved manufacture of leather
IPC: C14C1/08
Filed: 1931-04-13
Abstract: 371,587. Drying systems. WADE, H., 111, Hatton Garden, London.-(Ontario Research Foundation; 47, Queen's Park, Toronto, Canada.) April 13, 1931, No. 10872. [Class 34 (ii).] In making patent, japanned, or enamelled leather, by degreasing with a solvent, drying, and then applying successive coating compositions, each of which is dried before applying the next, the drying operations are carried out in an atmosphere of about 50 per cent relative humidity to diminish shrinkage. Suitable conditions for drying off the solvent are 90-100‹ F. for 2-4 hours.
Patent GB-984752-A (GB)
Title: Improvements in or relating to mould board ploughs
IPC: A01B15/08
Filed: 1961-03-24
Abstract: 984,752. Agricultural implements. C. VAN DER LELY N.V. March 24, 1961 [April 14, 1960], No. 10933/61. Heading A1B. A mouldboard for a plough is formed of spring steel bars 5 which are attached to a resilient support member 15 attached to the beam 4 of a plough. As shown the ends of the bars 5 are held in position by a shoe 3 and the bars 5 are bent to form loops 6A, 6B which increase in size from the bottom to the top of the mouldboard. The member 15 is attached to the beam 4 so that a limb 24 is turnable in a clamp 26, the mouldboard being capable of resilient deflection as a whole. As shown in Fig. 9 the support member 37 is looped to form a slot so that it is vertically adjustable relative to a bracket 40 which is longitudinally adjustably mounted on an arm 39 fixed to the plough frame 38. This enables the mouldboard to be altered in shape. In a modification the mouldboard may be formed of a number of flat rectangular bars. Such a bar may be used as an outer rim for a mouldboard made of spring steel bars. A synthetic resin coating may be used to reduce friction. Specification 984,753 is referred to.
Patent GB-527517-A (GB)
Title: Improvements in or relating to the mounting of windows
IPC: E05D7/085
Filed: 1939-04-13
Abstract: 527,517. Hinges. PERSSON, E. S. April 13, 1939, Nos. 11236 and 11237. Convention dates, April 13, 1938 and March 7, 1939. [Class 65 (ii)] A window sash, pivoting about an horizontal axis, has two pivot points on each side and when the window is closed these points are on either side of a vertical plane, parallel to the glass, through the centre of gravity of the movable window parts. When the window is partly open, the sash rests simultaneously on both pivots from which position it is rotatable in one direction on the one pivot and in the other direction on the other pivot. In the arrangement shown, Fig. 1, the sash is supported on each side by the two pivot points 10, 11. When the window is opened, the sash pivots on the point 10 with the lower end of the rib 12 rests on the inclined portion of the member M. Continued opening of the window, causes the window together with the member M to pivot about the point 10. When the sash is turned right round, it is possible to separate it from the frame by passing the pin 10 out of the slot 4. The member M is shaped to co-operate with the rib 12 attached to the sash and the rib 13 attached to the frame to form a draught excluder. In a modification, Fig. 7, the pivot point 11 is replaced by members 23, 24, attached to the frame 'and sash respectively, the member 23 having a projection 25 which co-operates with a bearing surface 26 attached to the member 24. The other pivot point 10 is replaced by a pin 29 working in an arcuate slot 30. On opening the window, the sash pivots about the point 26 and the pin 29 moves to the bottom of the arcuate slot 30. Further movement of the window causes the parts 25 and 26 to separate and the window pivots about the pin 29. When the sash is turned right round, the sash and frame can be separated by passing the pin 29 through the slot 30. The parts 25, 26 are so shaped as to form draught excluding abutments. To increase the braking effect between the parts of the hinge, the screw 29 may be adjusted, and in addition a member made from material having a high frictional coefficient or a spring used. The hinge may be provided with a cover concentric with the slot 30 part of which cover is attached to the frame and part to the sash.
Patent GB-398573-A (GB)
Title: Improvements in or relating to the distillation of readily volatilisable metals
IPC: C22B19/04
Filed: 1932-04-19
Abstract: 398,573. Rotary furnaces. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germanv. April 19, 1932, No. 11252. Convention date, Feb. 12. [Class 51 (ii).] In the distillation of readily volatilizable metals, such as zinc or cadmium, in a muffle 2 built into and rotating with a rotary furnace 1, a conduit, extending laterally from the muffle through the wall of the furnace, is utilized either for the discharge of the metal vapours or the distillation residues, or for the supply of the charge material. Fig. 1 shows a construction in which the laterally extending conduit 13, serving for the discharge of the residues, communicates with a helical pipe 14 having an outlet 15 and fitted with shut-off valves to prevent escape of metal vapours. The latter pass into a condenser 5 from which the exhaust gases escape at 7 to the combustion chamber 9. Fig. 2 shows a modification in which the lateral conduit 18 is utilized for carrying off the metal vapours, the conduit communicating through a chamber 17 with a pipe 16 projecting into the muffle 2. A worm 19 is disposed within the chamber 17 to return to the muffle any solid material which may enter the pipe 16. When the lateral conduit is employed for feeding in the charge, its outer end is of shovel-like form and the furnace is inclined in the opposite direction to that shown in Figs. 1 and 2.
Patent GB-944823-A (GB)
Title: Improvements in or relating to fluid pressure valves
IPC: F16K11/044
Filed: 1961-07-05
Abstract: 944,823. Valves. BENDIX WESTING- HOUSE AUTOMOTIVE AIR BRAKE CO. July 5, 1961 [July 14, 1960], No. 11270/63. Divided out of 944,822. Drawings to Specification. Heading F2V. The subject-matter of this Specification is substantially the same as that described in Specification 944,822 but the claims are concerned with the manually operable and fluidpressure responsive valve.
Patent GB-120404-A (GB)
Title: Improvements in Meters for Measuring the Flow of Liquids.
IPC: G01F3/18
Filed: 1917-08-09
Abstract: 120,404. Marks, E. C. R., (Sugar Centrifugal Discharger Co.). Aug. 9, 1917. Fixed-abutment type; valves, distributing &c.- Relates to liquid meters of the oscillating-vane type, wherein two oscillating vanes a<20>, Fig. 4, and b<20>, Fig. 7, are mounted in co-axial working chambers A, B, Fig. 2, a series of ports and passages being provided in the hubs a, b and the casing partitions so that the hub of each vane acts as a valve controlling the inflow and outflow of liquid in the chamber of the other vane. The liquid is admitted to the meter through the inlet e<6> and the central partition E, and discharged through the outlet e<12>. A locking-pin mounted in the partition E is adapted to hold each vane alternatively at the end of its stroke until the other vane has completed its stroke.
Patent GB-878844-A (GB)
Title: Improvements in or relating to submarine armoured electric cables
IPC: H01B7/22
Filed: 1960-04-01
Abstract: 878,844. Armoured cables. PIRELLI S.p.A. April 1, 1960 [May 6, 1959], No. 11534/60. Class 36. Armouring for submarine cables is formed by wires 2 sheathed individually with plastic material, the sheaths 3 being of such external configuration that they interlock and mutually resist rotation. The sheaths may be Z-shaped as shown or sector shaped. The wires may be of circular, square or hexagonal cross-section and may be fluted to improve adhesion. Alternatively a cement may be used for this purpose. Stranded wires may be used, the lay of individual wires being of opposite hand to the lay of the armouring as a whole. The material of the sheathing may be polyethylene or P.V.C. and may be extruded.
Patent GB-357556-A (GB)
Title: Process and means for the manufacture of mantle crowns
IPC: A61C5/77
Filed: 1930-04-12
Abstract: 357,556. Artificial teeth. VETTER, E., 6, Turnstrasse, Pforzheim, Germany. April 12, 1930, No. 11691. [Class 81 (ii).] " Mantle crowns" are manufactured by the use of a mould comprising upper and lower members 1, 3 having a series of counterpart recesses for the crowns, and an insertion piece 2 having integral therewith core pieces 4 for the recesses in the crowns. The standardized crowns so produced are placed on the prepared stumps of teeth.
Patent GB-694535-A (GB)
Title: Roller-type runner for curtains
IPC: A47H15/02
Filed: 1951-05-18
Abstract: 694,535. Suspending curtains. POSTEL, K., and POSTEL. H. May 18, 1951 [May 20, 1950], No. 11729/51. Class 52(v) A roller-type curtain runner comprises a U-shaped stirrup 10 with oppositely disposed journals 12, 13 formed intergally with the stirrup by die-casting, pressure casting or pressure method. At the end faces of the journals are two fork-like prongs 15 which, when the rollers are mounted are bent outwardly to prevent axial movement of the rollers. The rollers have recesses 17 to house the bent-over prongs 15.