baber/WOPTO huggingface dataset:
Patent GB-859849-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: CONNELL LESLIE JAMES CAMBRIDGE
IPC: H01L23/473
Filed: 1957-04-03
Abstract: 859,849. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. March 28, 1958 [April 3, 1957], No. 10925/57. Class 37 A semi-conductor device comprises a base electrode which is cooled by cooling fluid and releaseably clamped 15 an electric terminal having inlet and outlet fluid connections, the terminal and the electrode forming a fluid tight chamber. The Provisional Specification Figure shows four such devices clamped to a bus-bar 2. In each case a germanium rectifier element 15 is fixed to the closed end of a hollow base electrode 7 which is screwed or clamped to a terminal 3. A hollow tube 12 carries cooling liquid from inlet 11 to the inner face of electrode 7 to outlet 10. A ring 14 couples adjacent pipes 10 and 11. The Complete Specification Figure shows 24 such devices clamped on an assembly having, two D.C. output bus bars 21, 22 and 3 A.C. input bus bars 23, 24 and 25 on an insulating panel 20. Fuses 26 are provided in the connections between the rectifying elements. Coolant is supplied via pipes 29. The arrangement facilitates the replacement of individual rectifiers. Specification 787,389 is referred to.
Patent GB-1206726-A (GB)
Title: Heat pump system
IPC: G05D23/24
Filed: 1968-07-26
Abstract: 1,206,726. Refrigeration system. CONTROLS CO. OF AMERICA. 26 July, 1968 [29 Aug., 1967], No. 10931/70. Divided out of 1,206,725. Heading F4H. In a heat pump system having a four-way, closed centre reversing valve 74 disposed between a compressor 72 and two coils 68 and 70, there is interposed between the two coils and in flow series therewith, a flow controlling valve 10, the controlling valve permitting flow therethrough in either direction and being operable by a heat motor disposed therein and responsive to the state of a thermistor 88 associated with the compressor inlet line 84. In operation, if the connection between the coils 68 and 70 and the compressor 72 is established via part 76 of valve 74, then coil 68 becomes an evaporator and coil 70 a condenser so producing a cooling function. In the event of the two coils being connected to the compressor via part 78 of valve 74, then coil 68 becomes the condenser and coil 70 the evaporator so producing a heating function.
Patent GB-791363-A (GB)
Title: Improvements in or relating to electron tubes
Inventor: MCCULLOUGH JACK ARLINGTON
IPC: H01J21/36
Filed: 1956-04-10
Abstract: 791,363. Thermionic valves. EITEL-Mc- CULLOUGH, Inc. April 10, 1956, No. 10941/56. Addition to 782,101. Class 39(1). In a tube having ceramic cylindrical envelope portions 3 sealed together at a metallized braze joint 9 which also supports the cathode 7 through ring support 8, one of the end walls 2 acting as an anode, as in the parent Specification, one of these walls, preferably both, is made of metal. The supports and leads 18 for the grids 16 are passed through insulating bushes 19. The twin triode shown may be pumped through a tubulation or the joints made in a vacuum oven as in Specification 782,102.
Patent GB-1362646-A (GB)
Title: Method for producing a multiple filamented cartridge lamp
IPC: H01K3/00
Filed: 1973-03-06
Abstract: 1362646 Electric incandescent lamp WAGNER ELECTRIC CORP 6 March 1973 [24 March 1972] 10955/73 Heading H1F An electric incandescent lamp is made by joining two or more filaments by linking members to form a filament assembly, inserting the filament assembly into a lamp case, flushing the lamp case and press sealing the ends of the case to leave at least a portion of the linking members external of the lamp case but the filaments within the sealed lamp case, and severing at least one of the linking members. Both linking members may be severed (Fig. 4, not shown) or the unsevered member may be covered with a metal cap (Fig. 5, not shown). One of the press seals may be made before or during flushing of the lamp case. The lead-in wires of the lamp may be an alloy of Ni and Fe covered with a copper sleeve and a coating of Ni or borate or they may be an alloy of Ni, Fe and Cr. The linking members may be of Ni + Fe + Cr alloy or Ni whilst the lamp case may be of soda lime glass.
Patent GB-687864-A (GB)
Title: Improvements relating to bracelets
Inventor: GRIFFITH FREDRIC
IPC: A44C5/24
Filed: 1950-05-03
Abstract: 687,864. Bracelets. GRIFFITH & SONS, Ltd., H. April 24, 1951 [May 3, 1950], No. 10965/50. Class 43. An adjustable folding clasp for a bracelet comprises a part a<SP>1</SP> slidable within longitudinal guide flanges f along the sides of an outer part a and formed with a central longitudinal gap k with rows of ratchet teeth m along part of each edge of the gap, these teeth being arranged to cooperate with pawls o provided one on each limb n of a resilient bifurcated member that is situated between the slidable parts a, a', the engagement and disengagement of the pawls o and ratchet teeth m being controlled by a helical cam-like edge r provided by a gap in the end of a link c that is pivoted on a pin h at the end of the part a, the pawls being disengaged when the link c is opened out as shown in Figs. 2 and 3. The housing for the bifurcated member with limbs n is provided by a central longitudinal channel e, Fig. 6, in the bottom of the part a, below the gapped bottom of the part a' and the closed end of the bifurcated member is anchored to the part a by a projection y on the latter. The projection y also serves to prevent separation of the parts a and a<SP>1</SP>. A clasp d pivotally connected between the outer end of the link c and one end of the bracelet b is provided with longitudinal side flanges u so that when the link c is closed or folded over the parts a, a' and the clasp d is also closed over the link c the flanges u grip the flanges f of the part a when the clasp is snapped into position. The other end of the bracelet b is connected by a pivot pin i to the outer end of the part a<SP>1</SP>. A cover plate t connected at one end to the pivot pin i is preferably provided to cover the ratchet teeth.
Patent GB-1106651-A (GB)
Title: Process control apparatus
Inventor: MERIE GEORGE ALAN MONTGO
IPC: G05D23/24
Filed: 1964-03-16
Abstract: 1,106,651. Automatic flow control. SERCKR. & D. Ltd. March 4, 1965 [March 16, 1964], No.10973/64. Heading G3R. The control of a fluid control valve 10 in dependence of say temperature comprises a sensitive element 11 controlling a variable frequency pulse generator, output of which is passed to a counter 15 and compared subtractively with the count from a reversible counter 14 fed from a reference pulse generator, both for a period varying approximately inversely with the mean frequency of generator 12 after which period the counters are reset. When the net count is for example negative i. e. low temperature the valve is adjusted through a reversing motor 58 switched through gates 52 and 54. A further circuit produces a term dependent on rate of change of frequency. In another arrangement a measured value generator feeds pulses of frequency f 1  into a counter for a first interval t 1  and a reference pulse generator adds pulses of frequency f o  for an interval t 2 . The measured value generator then subtracts pulses for an interval equal to t 1  + t 2  at a frequency f 2 , hence the net count will be f 1  t 1  + f o  t 2  - f 2  (t 1  + t 2 ) . If f 1  = f 2  there will be no change in the parameter and the expression will equal zero. For any change in the parameter, the expression may be resolved into t 2  (f o  - f 2 ) and ti (f 1  - f 2 ) the first term being dependent on error frequency and the second on rate of change of frequency. A third pulse generator determines the length of the time intervals t 1  and t 2 . The counters and associated logic elements may be of the electronic, electro-mechanical, hydraulic, or pneumatic types. The reference generators may be alternatively of the variable frequency type controlled by a second parameter. The arrangement may be modified to control a plurality of devices each having a separate detecting element by including further ring counters arranged so that the pulse trains from the elements are fed in successive cycles in a time division mode of operation.
Patent GB-121753-A (GB)
Title: Improvements in and relating to Electric Motor Control Systems.
IPC: H02P3/14
Filed: 1917-07-31
Abstract: 121,753. British Thomson Houston Co., (General Electric Co.). July 31, 1917. Systems for continuous-current motors only.- In regenerative braking systems for series motors in which the field-magnet winding of the machine is supplied during the braking operation with current from an exciter, this exciting current is so regulated that the speed-current braking characteristic is sufficiently like the normal seriesmotor-characteristic that the change of connexions may be made at any speed without an excessive change in torque. In one arrangement, Fig. 1, power is supplied from a trolly 14 to a pair of traction motors having armatures 10, 12 and series field windings 11, 13; these motors are connected in series and in parallel by means of a main controller C associated with a starting resistance 17. A motor-generator set 20 is used for regenerative braking, the motor 21 of this set being supplied from the trolly 14 through a starting resistance 22. The generator or exciter E is provided with two armature windings and commutators 23, 24 which are adapted to be connected across the field-magnet windings 11, 13 by means of a braking controller B. The exciter E is provided with a field-magnet winding 26 energized by a self-excited generator 29 and with a winding 25 carrying the full current of the traction motors; during the regenerative braking operation, the winding 25 acts in opposition to the winding 26 so as to give the exciter E a drooping or constant-current characteristic. The voltage of the exciter is adjusted by means of resistances 32 in circuit with the winding 26. In modifications, the winding 26 may be self-excited, and the winding 25 may be dispensed with, the drooping characteristic of the exciter being effected by designing the machine with a high armature reaction. During regeneration, the sum of the currents in the armature and field magnet windings of the traction motors are maintained substantially constant. In another arrangement, the exciter armatures are connected in series with the motor field-magnet windings, and variable resistances are connected in shunt across the two (motor field-magnet winding and exciter armature). Specification 22868/07 is referred to.
Patent GB-1347219-A (GB)
Title: Sampling selector for burst can localization
IPC: G21C17/04
Filed: 1972-03-09
Abstract: 1347219 Valves COMMISSARIAT A L'- ENERGIE ATOMIQUE 9 March 1972 [9 March 1971] 11032/72 Heading F2V [Also in Divisions G4-G6] In order to permit localization of a burst can in a nuclear reactor fuel assembly, sampling tubes 1 connected to extensions of channels containing the fuel assemblies are fixed in a distribution plate 2 supporting an internallytoothed ring 4 constituting a sun gear. A turntable 6 freely mounted for rotation within the ring 4 has a recess 12 within which is rotatably mounted a planet gear 14 in meshing engagement with the sun gear 4. The planet gear 14 and the turntable 6 are mounted at the lower ends of two parallel shafts 15, 16 coupled to each other by an arm 18 rigidly fixed to the shaft 16 but secured to the shaft 15 only against axial motion. Rotation of the turntable 6 within the sun gear 4 causes both displacement of the planet gear 14 with the turntable 6 and rotation of the planet gear 14 about its own axis. Each tooth of the planet gear 14 therefore describes a hypocycloid within the interior of the sun gear 4. The planet gear 14 is penetrated by a duct 20 which is connected via a pipe 22 with an apparatus (not shown) for measuring the radioactivity of gaseous samples. The succession of hypocycloid arcs (A-B, B-C, &c.) described by the duct 20 as the turntable 6 rotates results in it communicating in turn with each of the sampling tubes 1. The turntable 6 is preferably driven by means of a sleeve 24 which extends through the reactor vessel to a drive system. Within the sleeve 24, a tube 30 is coupled to the pipe 22 by means of a rotary seal 32.
Patent GB-332195-A (GB)
Title: Improved method of developing kinematograph films sensitized with bichromated gelatine
IPC: G03C5/22
Filed: 1929-04-10
Abstract: 332,195. Bizot, M. G. M. G. Oct. 11, 1928, [Convention date]. Bichromated colloid processes; dye-toning.-A method of developing and toning films sensitized with bichromated gelatin comprises (1) washing with cold water to remove the unexposed bichromate, (2) immersing in a bath of cold water containing sodium hypochlorite to swell the unexposed gelatin, (3) treating with hot water to remove all or part of the unexposed gelatin, and (4) dye-toning the remaining gelatin. The hot water mav contain a trace of methylene blue to facilitate development, and the same dye may be used for dye-toning. If a residue of gelatin is left in the unexposed parts, it may be coloured by the aforesaid dye-toning bath, or by a dye-bath of different colour. The Specification as open to inspection under Sect. 91 (3) (a) states also that the film support may comprise a film of celluloid or cellulose acetate coloured differently from the image layer; and refers to a film of celluloid or cellulose acetate coated with gelatino-silver-bromide which, after exposure and development, is chemically toned and subsequently immersed in a dye-bath which dyes the whole gelatin layer. This subject-matter does not appear in the Specification as accepted.
Patent GB-165980-A (GB)
Title: Improvements relating to cooling and preserving chambers for meat and other food substances
IPC: F25D17/00
Filed: 1920-04-21
Abstract: 165,980. Rayson, R. April 21, 1920. Air, heating; ventilating conduits &c., arrangements and adaptations of; forced ventilation; louver ventilators; valves and valve apparatus.- Relates to means for circulating air in apparatus for defreezing meat &c. of the type in which air is circulated through the receiving chamber by an electric fan. The receiving chamber 1 is divided into a number of compartments 2, 3 having pipe lines 6, 7 at the top and bottom thereof through which air is passed by means of fans 20. The upper pipe lines have downwardly pointing orifices 8, Fig. 4, each orifice being provided with a deflecting cone 12 and a cup-shaped adjustable member 11 to regulate the flow of air. The deflecting cones are omitted from the orifices in the lower pipe lines. These are connected to perforated pipes 23, Fig. 2, arranged inside airtight chambers 21, 22, which are connected by inlet passages 38, 39 to the fans 20. The circulating air is warmed by coming into contact with a small electric radiator in the form of a lamp, housed within a vertical pipe 30 in each lower pipe line. Normally the fans will draw air from the lower pipes 7 through the perforations 25 into the chambers 21, 22 and deliver it into the chamber 40 in which the fans are mounted, from whence it passes through the upper perforations 23 into the upper pipe lines 6. The direction of flow of air may, however, be reversed. For example, when warm air is to be passed over the floor of the receiving chamber to dry it after washing, plug valves (not shown), which normally close outlets from the floor pipes into the chambers 21, 22, are opened and through the opening or closing of suitable valves and cocks situated in additional conduits between the chambers 21, 22 and the exit pipes of the fans 20, the direction of flow of air is reversed. A slightly modified construction of deflector is described for use with the upper pipe lines.
Patent GB-610586-A (GB)
Title: Improvements in hot cupboards
IPC: A47J39/02
Filed: 1946-04-11
Abstract: 610,586. Electric hot plates. THOMAS (ENGINEERS), Ltd., B., and THOMAS, B. April 11, 1946, No. 11107. [Class 39(iii)] [Also in Group XXXII] A ventilated hot plate, intended for use in a hot cupboard for keeping food warm, comprises a tray 12, having a perforated bottom and carrying heating elements 13, and a cover plate 17 supported above and spaced from the tray, the edges of said cover plate being set back on all four sides from the walls 19 of the cupboard when the plate is in position. The tray 12 forms the bottom of the cupboard, air entering by the perforations 20, passing the heating elements 13 and up round the edges of cover plate 17 on which food is placed. Adjustable openings may be provided in the upper part of the cupboard for the air to escape. The cover plate is supported on inverted channel members 16 lying across the tray 12, and its edges are turned up at rightangles. A hot plate as described in Specification 411,675 forms the top of the cupboard, which may be subject to thermostatic control.
Patent GB-510278-A (GB)
Title: Improvements in upholstery
IPC: A47C31/00
Filed: 1938-04-12
Abstract: 510,278. Spring upholstery. MARSHALL, J. E. L. April 12, 1938, No. 11160. [Class 52 (iv)] A. cover pad for a spring assembly is formed by securing. inner and outer layers of material B<1>, B by intersecting rows of stitches to form compartments for the stuffing A, the lines of stitching being welted on the underside H.
Patent GB-673261-A (GB)
Title: Device for the formation of compressed building elements
Inventor: LOCATELLI ANTONIO VITTORIO
IPC: B28B7/32
Filed: 1950-05-08
Abstract: 673,261. Moulding bricks, blocks &c. CHYTIL, J., and BOGOYAVLENSKY, G. May 8, 1950, No. 11320/50. Class 87(ii) In apparatus for moulding bricks and other building elements from powdered materials under pressure by the use of a rigid mould and expansible punches or cores, are described in Specification 640,325, each punch or core comprising a rigid body pierced by channels and enclosed by a doubledwalled rubber tube or sleeve, there is interposed between the two walls 26<SP>1</SP>, 26" of the rubber tube an intermediate tube or liner 55 which is of inextensible material but which can expand and contract with the walls of the rubber tube or sleeve. The liner 55 may be composed of segments of indeformable material, e.g. leather, which keep their cylindrical forms and separate laterally when the rubber tubes expand; or the liner may be in the form of a sack of foldable but inextensible material with a diameter suitable to the maximum diameter to be reached by the expanded rubber. When fluid under pressure is admitted to the channels 24, 25 in the rigid body 27, the tube.26', 26" expands but keeps its cylindrical shape because of the liner 55. The mould comprises a rigid upper part 41 and a lower part 42 with separate side walls and a removable bottom 43 held in place by tie rods 44. As the punches are advanced into the mould free passages are provided for them by the previous disposition of tubes 48 which are pushed ahead by the punches and pass through holes in the mould bottom 43. Instead of rigid metal tubes 48, flexible tubes 58 may be used, closed at their lower ends and forced downwards by the punches. holes in the bottom 43 then being unnecessary.
Patent GB-647672-A (GB)
Title: Improvements in suction nozzles
IPC: B63B57/00
Filed: 1948-04-24
Abstract: 647,672. Suction nozzles. SILLEY, H. A. J., and UNTHANK, G. R. April 24, 1948, No. 11338. [Classes 8(i) and 102(ii)] A suction nozzle for raising sludge and the like, of the kind including an air duct having an outlet opening into the interior of the nozzle in the neighbourhood of the nozzle mouth wherein there are provided control means operable for reducing the flow of air to zero, comprises an inner tube 25 slidably mounted in a tubular shank 21 connected to a suction line 14 and provided with lifting eyes 18. An outer tube 23 is secured to the shank 21 and is provided with air inlet ports 24. The space between the tubes 23, 25 forms an air duct through which air is drawn into the inner tube 25. The tube 23 is provided with a conical end 23A and the tube 25 is chamfered at 25A. The volume of air drawn through the air duct is varied by sliding the tube 25 axially within the shank 21 by rotating a ring 27 which carries pins 30 passing through circumferential slots 31 in the shank and engaging helical slots 32 in the tube 25 rotation of which is prevented by a pin 33 engaging a slot 34 in the shank 21.
Patent GB-906093-A (GB)
Title: Improvements in or relating to wave transmission systems
IPC: H04B3/16
Filed: 1960-03-31
Abstract: 906,093. Two-way transmission. WESTERN ELECTRIC CO. Inc. March 31, 1960 [April 28, 1959], No. 11382/60. Class 40 (4). The image impedance of a two-way repeater with dissimilar terminal impedances is chosen to provide an impedance match with one of the terminal impedances by taking account of the given terminal impedances and the transfer constant of the repeater. As shown in the symmetrical lattice of Fig. 4 (one series and one diagonal branch of which are shown in dotted line only) or in the balanced bridged-T network of Fig. 5, impedance matching calls for negative impedance repeaters such as 8, 9, or 14, 15, with impedance conversion ratios of - 1. If, in Fig. 4, the repeaters have series and shunt impedances of Za and Zb, terminations - Za and - Zb having positive resistive parts are necessary and are chosen to provide the required image impedance. In Fig. 5 the corresponding terminations are Za and Zb/2. When the two-way repeater is terminated at one side by the office end of a telephone cable and is terminated on the other side by a cable with an image impedance termination at the far end and a building-out network at the near end, the repeater having a gain of 0.7 neper, two sets of appropriate terminations- Za and- Zb are shown in Figs. 6 and 7, and 10 and 11, respectively.