baber/WOPTO huggingface dataset:
Patent GB-1179196-A (GB)
Title: Phase-Shifter.
IPC: H01P1/185
Filed: 1968-01-31
Abstract: 1,179,196. Phase-shifters. THOMSONC.S.F. 31 Jan., 1968 [9 Feb., 1967], No. 5088/68. Heading H1W. A quantized phase-shifter comprises spaced groups of diode/capacitor assemblies arranged between the conductors of a coaxial or other TEM line. Each group may contain from two to four such assemblies spaced at intervals adjusted to prevent formation of standing waves. The diodes in each group are controlled from a common source to provide a quantum of phase-shift. The group shown comprises two assemblies spaced by a distance of 3#/8 (where # is the working wavelength) and provides a phase-shift of #/4. Each assembly comprises a diode D 1  (e.g. a PIN diode) and a capacitor C arranged in series across the line L 1  L 2  in the vicinity of a shunt stub 6, 8. The electrodes of the capacitor C are provided by the inner conductor L 1  of the line and the diode connector γ 1  The diode is connected to a bias source M through conductors 3, 11 which form the inner conductor of a low impedance #/4 stub. This stub provides a short-circuit for high-frequency signal currents. An earth return for the diode is provided by the innner conductor 6 and piston 9 of the stub 6, 8. When the diode is in the conducting state the assembly is equivalent to a capacitance in parallel with the high impedance of the stub 6, 8. In the blocked condition the diode is equivalent to a capacitance and the combination of this capacitance with the capacitance of capacitor C and the reactance of the stub is equivalent to a parallel resonant circuit. It can be shown that the phase/frequency characteristics of the assembly for both conditions of the diode are similar and hence that the phase-shift is independent of frequency. A further embodiment (Fig. 6, not shown) using a tin-plate or "sandwich" line is described. In this modification, the capacitor C is formed by a layer of dielectric (C 1 ) material on the central strip. The layer carries an electrode (γ<SP>1</SP> 1 ) connected to the diode.
Patent GB-578891-A (GB)
Title: Conduit supporting clip
IPC: F16L3/123
Filed: 1944-03-20
Abstract: 578,891. Band clips. ADEL-PRECISION PRODUCTS CORPORATION. March 20, 1944, No. 5164. Convention date, March 24, 1943. [Class 44] [Also in Group XIV] The strap 1 of a conduit supporting clip has apertured ends 3, 4 and a bent back portion 6 provided with an aligned aperture 7 the edges of which are bushed outward at 9 and have a medial slot 8. The bolt 10 secures the clip to the structural part 5 of the aircraft. In a modification the arcuate tongues 9 are screw-threaded. The strap 1 is provided with a cushion 12 and an earthing strip.
Patent GB-368500-A (GB)
Title: Improvements in or relating to electrical railway lighting systems
IPC: B60L1/14
Filed: 1931-02-19
Abstract: 368,500. Supplying consuming devices. ULBRICH, A., 24, Croeselaan, Utrecht, Holland. Feb. 19, 1931, No. 5277. Convention date, Feb. 19, 1930. [Class 38 (iv).] In a lighting system for trains in which some of the coaches have lamps supplied from a higher voltage generator on the locomotive and the others have lamps supplied from a lower voltage generator mounted on the coaches, the coaches are provided with three through mains connected so that either system may be used. Lines 5, 6, 7, Fig. 1, are fed from two generators mounted on the locomotive. The generator supplying lines 5, 6 has a voltage of 25 and the generator supplying lines 6, 7 has a voltage of 85. Fig. 3 shows the connections of a coach in which the lamps are supplied from a local generator 13. The lamp circuit connects a two-way switch 17 having contacts 10, 12 connected to the lines 5, 6 and contacts 15, 16 connected to the generator 13 and a battery 14, so that the lamps can be supplied either from the mains or from the local generator or battery. The switch 17 may be adapted to operate automatically.
Patent GB-655468-A (GB)
Title: A machine for testing tubes closed at one end and sorting them according to their response to the test
IPC: B07C5/04
Filed: 1948-02-23
Abstract: 655,468. Indicating leakages in pipes. ASHCROFT, D. G., STEWART, I. F., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 23, 1948. No. 5279. [Class 99(ii)] [Also in Group XIX] In a suction machine for testing tubes 6 closed at one end, and separating out faulty tubes, the tubes are fed on to hollow pins 5 to make contact with seatings 7, the pins forming part of suction pumps 3 held in radial positions around a rotating cylinder 1 by retaining caps 17, and operated by a fixed cam 8 to apply suction to and release the tubes in the required angular position. As shown, detonator tubes are fed individually from a pipe 11 by release of a trip lever 13 by pins 14. Alternatively the tubes may be dropped, closed end downwards, into radial holes of a small rotating feeding cylinder (not shown). Each tube, after passing a length-testing shearing blade 15, is pressed on to its seating, e.g. a spherical or conical rubber washer, by a spring steel strip 9 which is prevented from tilting the tube by a V-shape bearing surface 10 on the cap 17. The suction pump 3 comprises a spring-operated piston having a part engaging a groove in the cam 8 which is so formed as to apply suction at the topmost position and release it at the lowermost position where the tube, if perfect, will drop into a receptacle (not shown). If, however, the tube does not fit perfectly on its seating or has any holes &c. it will not be held by the suction and will drop into a " rejects box. A shoe 18 protects the lever 13 from any tube which has accidentally passed its ejection positions. Suction devices may be provided in a series of parallel phase, a corresponding number of pipes 11 being provided.
Patent GB-525181-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/46
Filed: 1939-02-17
Abstract: 525,181. Cathode-ray tubes. KOLSTERBRANDES, Ltd., and SMYTH, C. N. Feb. 17, 1939, No. 5323. [Class 39 (i)] Tubes using electromagnetic deflection have a rectangular crosssection at the deflecting point. Either the neck 2 or the conical part 3 of the tube or both are rectangular. The coils may be flat, lying directly on the faces of the envelope and surrounded by a laminated core; or the coils may be on pole pieces abutting on the flat envelope faces. The coils may exceed in width the faces, and they may be trapezoidal in shape. They may be designed to give a barrel-shaped raster.
Patent GB-1034222-A (GB)
Title: Speculum
IPC: A61B1/31
Filed: 1964-02-07
Abstract: 1,034,222. Specula. J. M. FIORE and W. F. FERRO. Feb. 7, 1964 [Feb. 8,1963], No. 5337/64. Heading A5R. A disposable practoscope 10 comprises a tube member 11 having a large bore through which the assembly 12 having obturator 23 passes, and a smaller passage 14 extending longitudinally of the bore of tube 11, the passage 14 containing one or more lamps 18 and being closed at the distal end by lens 19. The passage 14 may be formed by a tube joined to the wall of tube 11 or by the space between two concentric tubes (Fig. 3, not shown). To tube 11 is detachably connected a cap section 13 containing eyepiece 31 and having ripple 32 through which fluid may be introduced or withdrawn from the body being examined. The parts of the device may be made of polyethylene, polystyrene, polymethylmethacrylate, fibreglass and bonded synthetic and natural fibres. The device may be sterilised lubricated and packaged.
Patent GB-563978-A (GB)
Title: Improvements in or relating to automatic valves
IPC: F16K15/14
Filed: 1943-04-06
Abstract: 563,978. Valves. BELYAVIN, P. April 6, 1943, No. 5488. [Class 135] In an automatic valve comprising a cylindrical body 1, having ports constituted by rows of circumferential slots closed by flexible strips 3, each strip is so dimensioned and arranged that its thickness divided by its length is from 0.0018 to 0.0036, and its maximum lift divided by its length is from 0.025 to 0.050. The maximum lift is determined by arches 8 which may have bent ends 9 engaging grooves in the body and are surrounded by an outer ring 10, the assembly being retained by V-shaped members 11 and locking pins 13. The radius of the arches 8 is less than that of the strip seating surfaces, constituted either by the surface of the body, or by lands 4 whose radius is greater than that of the body.
Patent GB-1386973-A (GB)
Title: Control valve mechanism
IPC: F16K11/07
Filed: 1972-02-22
Abstract: 1386973 Valves HYDRAULIC INDUSTRIES Inc 22 Feb 1972 [2 Nov 1971] 5499/74 Divided out of 1386971 Heading F2V The subject matter of this Specification is the same as that described in Specification 1,386,971 but the claims relate to a reservoir passage 65<1> which communicates with the second feeder passage means 33 when the spool is in the neutral position.
Patent GB-939219-A (GB)
Title: A method and apparatus for the production of photographic colour prints
IPC: G03B27/73
Filed: 1960-02-16
Abstract: 939,219. Photo-electric control of photographic printing. AGFA A.G. Feb. 16, 1960 [Feb. 20, 1959; Jan. 30, 1960], No. 5530/60. Class 40 (3). [Also in Group XX] A method of photographic colour printing comprises exposure to white light until the exposure to one primary colour component is complete, followed by the sequential insertion into the printing beam of filters of the two remaining primary colour components to complete the exposures to these colours. White light from a lamp 1, Fig. 1, passes through a condenser 2, 3 and a colour transparency 4 to a printing surface 7. Light passing through the printing paper is reflected from a mirror 10 to the photo-cells 11, 12, 13 through blue, green and red filters 14, 15, 16. Green, blue and red filters 17, 18, 19 and a shutter 29 are arranged for insertion into the printing beam. Printing is initiated by actuating a switch 75, Fig. 4, momentarily energizing a relay 74 to break contacts 74a, 74b, 74c and cutting off thyratrons 49, 50, 51. Relays 52, 53, 54 are de-energized, breaking contacts 52b, 53b, 54b and de-energizing the relay 73 which operates contacts 73a to open shutter 29 and 73b to increase the printing lamp intensity from an inspection to a printing value. The photo-electric current through cells 11, 12, 13 charges condensers 61, 62, 63 until one, say 61, reaches the potential necessary to reignite its thyratron. Relay 52 is then energized and contact 52a completes the circuit of relay 23 to insert the filter 17. When thyratron 50 strikes contact 53c closes and 53d opens to replace filter 17 by the filter 18. Exposure continues until thyratron 51 strikes closing the circuit of relay 73 to close shutter 29. In a modification, Fig. 5, a semi-reflecting plate 81 in the printing beam directs some of the printing light to the photo-cells via interference mirrors 82, 83.
Patent GB-348234-A (GB)
Title: Improvements in or relating to the driving of looms
IPC: D03D51/00
Filed: 1930-02-19
Abstract: 348,234. Conveying rotary motion. TANNWALDER BAUMWOLLSPINNFABRIK, Tannwald, Czecho-Slovakia. Feb. 19, 1930, No. 5539. Convention date, Feb. 20, 1929. [Class 80 (iii).] Relates to mechanism for imparting a variable drive to the crank shaft of a loom, and more particularly for giving the slay a greater velocity on its forward than on its backward movement. An arm 1, mounted for rotation at constant angular velocity about the main shaft 2, is coupled to an arm 3 keyed on the main shaft, through a pin 9 which is guided in slots 7, 8 in the arms and is controlled by a crank arm 4 mounted eccentrically on the shaft, so that the pin 9 in the course of one revolution makes an oscillating movement. The acceleration of the keyed arm during one half rotation of the loose arm, or the retardation during the other half rotation, is brought about by the co-operation of pin and slot. The slots are made longer than the oscillation path of the pin 9, which is adjustably mounted on the arm 4, and one slot at least is inclined with respect to the radius. The arm 1 may be replaced by a disc in which are arranged several slots of different form, thus permitting the degree of lead or lag to be altered at will.
Patent GB-1358473-A (GB)
Title: Hydraulic accumulator
IPC: F02M55/04
Filed: 1972-02-07
Abstract: 1358473 Hydraulic accumulators KLOCKNER - HUMBOLDT -DEUTZ AG 7 Feb 1972 [16 Feb 1971] 5554/72 Heading F1D An hydraulic accumulator comprises a variable volume liquid storage chamber 1 defined by an elastomeric bladder 2 having a peripheral head 3 held between the two parts of a housing 4. The two walls of the bladder 2 are acted upon by spring-loaded pistons 9, 10. The chamber 1 communicates with a fuel injection pump through a sleeve like extension 7 of the bladder 2.
Patent GB-923700-A (GB)
Title: Method and apparatus for forming glass fibres and burner therefor
IPC: C03B37/065
Filed: 1961-02-15
Abstract: 923,700. Burners. PITTSBURGH PLATE GLASS CO. Feb. 15, 1961 [Feb. 15, 1960], No. 5595/61. Class 75(1). [Also in Group XXIII] A burner, used for attenuating a molten stream of glass into fibres, and which produces a high velocity, turbulent, gaseous blast, is characterized in that the flame is anchored by means of an elongated " bluff body " such as a rod, mounted in a combustion chamber. The burner 38, Fig. 3, comprises a narrow chamber 45 partly formed of refractory material 48 surrounded by insulating blocks 49 and held by a steel cover 52. The gas which may be natural gas and air, propane and air or atomized liquid fuels and air, is supplied through line 62 through section 63 which has 40 to 60 mesh screens 64 positioned across the flow path to correct large eddies. Mounted in the chamber 45 in the initial section 65 several inches from the insulated enclosure a " bluff body " 66 extends across the path of the gas and may be positioned at an angle to the gas stream. Various forms of the " bluff body " which consists of some form of elongated rod which may be perforated to allow the passage of gas through are shown in Figs. 4-7. A spark igniter 80 is inserted in chamber 45. Other modifications of the burner are described, having watercooled outer jackets and modified eddycorrecting screens in the supply line. Fig. 12 (not shown) shows an annular burner constructed in the same manner as burner 38 but in annular shape used in conjunction with a centrifuge for attenuating molten glass into fibres. U.S.A. Specifications 2,489,242 and 2,489,243 are referred to.
Patent GB-449815-A (GB)
Title: Improvements in and relating to vacuum cleaning installations
IPC: A47L9/24
Filed: 1935-02-21
Abstract: 449,815. Vacuum pipe lines. BOOTH, R. N., Neasden Court, Neasden Lane, Neasden, London. Feb. 21, 1935, No. 5604. [Classes 99 (i) and 99 (ii)] [See also Group XXIX] In a vacuum cleaning system for theatres &c. in which pipe lines leading to a vacuum cleaning machine e.g. in the basement are permanently installed and hose connection points are provided, the points are provided with flaps a pivoted to be swung edgewise across the bores and to be returned to obstructing position by springs e. The flaps may have bevelled cutaway portions h engaged by lugs on the connecting nozzles of the hose pipes which are then turned to swing the flaps aside. Holes a<1> may be formed in the flaps enabling the suction in the system to retain the doors D of the points in closed position.
Patent GB-874220-A (GB)
Title: New pigment monoazo dyestuff lakes
IPC: C09B63/00
Filed: 1960-02-18
Abstract: The invention comprises bivalent metal lakes of monoazo dyes of formula:-  <FORM:0874220/IV(c)/1> wherein R is the residue of a 1-aryl-5-pyrazolone coupled in the 4-position and containing at least one sulphonic and/or carboxylic acid group.  They are prepared by diazotizing 5-nitro-2-aminobenzoic acid, coupling it with a suitable pyrazolone and forming the metal lake by known methods.  The lakes are used to colour lacquers, paints and graphic prints in yellow shades.  In examples 5-nitro-2-aminobenzoic acid is diazotized and coupled with 1-(31- or 41-sulphophenyl)-or -(21 : 51-dichloro-41-sulphophenyl)- or -(41-carboxyphenyl)- or -(21-chloro- 41-sulphophenyl)-or -(21-hydroxy-31-carboxy-51-sulphophenyl)- or -(61-sulphonaphthyl-[21])- 3-methyl- 5-pyrazolone and the calcium, barium or magnesium lake formed.
Patent GB-690256-A (GB)
Title: Air conditioning apparatus
Inventor: OHLHEISER CARLTON EDWARD
IPC: F24F3/14
Filed: 1951-03-12
Abstract: 690.256. Air conditioning. AMERICAN INSTRUMENT CO., Inc. March 12, 1951, No. 5905/51. Class 137 [Also in Group XIX] Goods are tested by exposure to artificially produced climatic conditions maintained in a chamber which is connected with an apparatus having means for heating or cooling or humidifying air which is withdrawn from the chamber and returned thereto after conditining. As shown in the sectional plan, Fig. 1, a cabinet is divided by louvred partitions at right angles to each other into an air-intake compartment A, a spray compartment B and an airdischarge compartment C, and, as shown in Fig. 2, a lower space contains a refrigerating unit. The cabinet is connected with the space to be air-conditioned by an intake pipe 1 and a discharge pipe 18, the air circulation being maintained by a fan 13 driven by a motor 19. The sprays 6 in the compartment B are supplied by a pump 4 submerged in the water in the compartments A, B which is maintained at a constant level by supply means 65-67 and a drain arranged at the required level. The pump is driven by a motor 54 carried by the cover of the cabinet, the cover being in two portions which are supported on a water-seal lute 57. The air is heated or cooled or humidified, according to requirements, under pre-set electrical controls responsive to wet and dry bulb thermoregulators. The wet bulb regulator 2 which may dip into the water 78 or may be enclosed in a wick 63, is positioned in line with the air-inlet 1, and the dry bulb regulator 17 is in line with the air-discharge 18. The air may be passed directly from the compartment A to the compartment C by opening the vertically pivoted door 16, but, if the door is closed, the whole of the air passes through the spray-removing louvred baffle 3 to the spray compartment, and then through the other spray-remover 11 to the air-discharge compartment, the temperature being adjusted by an immersion heater 9, an immersed cooler coil 5, an airheater 14 manually controlled, and an airheater 15 controlled by the dry-bulb thermo-regulator. The coil 5 is connected to a receiver 30 and compressor 32. A thermostatically controlled expansion valve 25 includes a temperature controlled element 33 which is clamped to the coil 5 so that the temperature of the coil controls the valve 25. The water level is indicated' by a float 24, and the water is stirred by a submerged jet supplied by the pump 4.
Patent GB-816259-A (GB)
Title: Centering device for clamping workpieces
IPC: B23Q3/00
Filed: 1957-02-21
Abstract: 816,259. Work-holders. CALOW, T., [trading as CALOW & CO., T.]. Feb. 21, 1957, No. 5923/57. Class 83 (3). A device for clamping and centring circular or regular polygonal workpieces comprises at least two members 1<SP>1</SP>, 2<SP>1</SP>, movable relatively to each other, one of which has a prismatic clamping recess 3 extending symmetrically to the direction of movement of the member, while the other member has a clamping surface 8 extending perpendicular to the direction, each clamping member having a surface 14 engaging with a surface of the other member, and one clamping member being guided so as to be slidable along a surface 2<SP>1</SP> extending at an oblique angle to the direction. The sides of the recess 3 may have an included angle of 60, or more than 90, degrees.
Patent GB-902683-A (GB)
Title: Circuit arrangement for concentrating the traffic in switching systems of telecommunication, particularly telephone systems
IPC: H04Q3/00
Filed: 1959-02-20
Abstract: 902,683. Automatic - exchange systems. STANDARD TELEPHONES & CABLES Ltd. Feb. 20, 1959 [Feb. 26, 1958], No. 5937/59. Drawings to Specification. Class 40 (4). To concentrate traffic between groups of line-finders and first selectors (a) some linefinders are connected to first selectors particular to themselves, (b) other line-finders of a group are connected in pairs with line finders of another group so that some first selectors are shared by a line-finder from each of two groups, and (c) some first selectors are shared by a linefinder from each of many groups having access to the first selector over a second stage line-finder. The arrangement may be applied to single motion rotary switches or to a satellite exchange using cross-bar switches.
Patent GB-196148-A (GB)
Title: Improvements in head-stocks for lathes, milling machines and like machine tools
IPC: B23Q1/70
Filed: 1922-02-28
Abstract: 196,148. Marks, E. C. R., (Hendey Machine Co.). Feb. 28, 1922. Turning; spindles. -- In a headstock for a lathe &c. the cone pulley 23 and connected pinion 24 run freely on a bearing sleeve 13, the gear 11 and bearing sleeve being slibably secured by keys 21, 22. respectively, to the hollow spindle 6 so that axial adjustment of the spindle may be effected by nuts 16 without disturbing the free running of the cone pulley. The spindle is shouldered to bear against a collar 8 and is mounted at the front end in a taper bearing 1 retained in position by a nut 3 having a flange 4 which protects the bearing surface between the gear 11 and the bearing 1. The rear end of the spindle is mounted in a bearing 5 and carries a gear 18 for actuating the free-motion. The bearing sleeve is provided with a collar 14 having a spring oiler communicating with an oil-way 26. When the back gears are not required the gear 11 is connected to the cone pulley by a pin 27. In a modification, the front end of the spindle is carried in a plain cylindrical bearing.
Patent GB-413058-A (GB)
Title: Improvements in and relating to hurdles for racing purposes
IPC: A63K3/04
Filed: 1933-02-27
Abstract: 413,058. Hurdles. SURRIDGE & CO., Ltd., S., and SURRIDGE, P., 210, Borough High Street, London. Feb. 27, 1933, No. 5956. [Class 45.] A racing hurdle comprises a rectangular frame 6, 7, 8, 9 eccentrically pivoted between stationary legs 1, 2. The pivot rod 6 passes through a slot in each side member of the frame, the slot being 3" in length and having its centre 3" from the mid point of the side member. This gives four possible heights for the top bar each 3" apart. The slots may be provided in the legs instead of or in addition to those in the side members of the frame.
Patent GB-1370738-A (GB)
Title: Off-gas system for nuclear reactors
IPC: G21C19/303
Filed: 1972-02-09
Abstract: 1370738 Nuclear reactors; processing radioactive waste ASEA-ATOM AB 9 Feb 1972 [10 Feb 1971] 6032/72 Headings G6C and G6R In the purification of fission product-containing gas from a nuclear reactor by passage through a delay container and an adsorption unit, the adsorption unit is periodically regenerated with a gas or steam, which after passing through the adsorption unit is led through the delay container. In the arrangement described, two adsorption columns are provided, one being in use while the other is being regenerated. The regeneration medium may be dry air, nitrogen, superheated steam, or part of the purified gas from the other adsorption unit. Active carbon or molecular sieve type material may be used as the adsorbent and may be heated before passage of the regenerating medium. When steam is used, a condenser is provided in the line from the adsorption unit to the delay container, and the adsorbent is treated with dry air before re-use. The gas to be purified may be withdrawn from a condenser associated with a turbine driven by water vapour from a boiling water reactor.