baber/WOPTO huggingface dataset:
Patent GB-1439775-A (GB)
Title: Gas-filled discharge tubes annular elem
IPC: H01T4/12
Filed: 1973-11-08
Abstract: 1439775 Cold-cathode tubes TELEFONAKTIEBOLAGET L M ERICSSON 8 Nov 1973 [8 Nov 1972] 51982/73 Heading H1D At least two electrodes El, E2 are vacuumsealed into a gas discharge tube with at least one discharge gap, and one electrode at least has part or all of its discharge surface coated with a metal for which the product of the thermal conductivity and the boiling point is less than 1000 cal./cm. sec. and the arc voltage in vacuum is less than 15 v. The electrodes may be of copper, and the coatings S1, S2 of bismuth, antimony, zinc or tin are deposited in known manner. The electrodes are soldered to a ceramic cylinder K. In a modification, there may be a centrally bored electrode axed between the electrodes E 1 , E 2  by two ceramic cylinders. Assembly is carried out in the atmosphere with which the tube is to be filled, e.g. hydrogen and argon at a final pressure of 50-100 mm. of Hg. Cooling means may be connected to electrodes El, E2. In the manufacture of an example, electrodes El, E2 are placed on heat resistant material with the hollow parts upwards to receive a tin pellet in a hydrogenargon atmosphere, and raised to a temperature of 230‹ C. until the tin melts whereupon the temperature may be increased to 600‹ to 800‹ C. The electrodes may then be soldered. Alternatively, the electrodes El, E2 and ceramic ring K are assembled with solder rings therebetween, and a metal pellet in the lower electrode. Heating to the soldering temperature melts the metal and alloys it with the copper electrode; some of the metal is transferred to the other electrode when the device is first put into use. The tube has a steep rise of current when it begins to conduct, and a large current-carring capacity with a low arcing voltage, and then therefore a low heat dissipation.
Patent GB-1178385-A (GB)
Title: Improvements in or relating to Thermometers.
Inventor: MOBSBY ERIC GEORGE HERBERT
IPC: G01K11/24
Filed: 1966-06-29
Abstract: 1,178,385. Acoustic thermometer. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 27 June, 1967 [29 June, 1966; 21 Nov., 1966], Nos. 29316/66 and 52098/66. Heading H4D. A thermometer in which the speed of sound in a probe is determined to indicate the probe temperature comprises an elongated magnetostrictive element 12 connected at one end to the probe 11 and at the other end to a terminal mass 14, and a coil 15 disposed about said other end for transmitting acoustic pulses along the element, the mass being positioned such that any reflections from the mass are in phase with the transmitted pulse and merely increase the transmitted pulse width instead of causing interference. The thermometer shown is essentially a development of that in Specification 1,035,763. Element 12 is a twisted strip wrapped with asbestos string and connected through a graphite rod transmission -line 13 to probe 11 which is of rhenium wire. Rod 13 is supported by graphite screws 21 in a niobium sheath 20 coupled to ceramic case 22 which contains a pyrophyllite support 23 for transmitting coil 15 and a receiving coil 16. Mass 14 may include a magnet for biasing element 12. Element 12 may be a tube instead of a twisted strip.
Patent GB-1172489-A (GB)
Title: Triggered arrester gap unit
IPC: H01T4/16
Filed: 1968-11-04
Abstract: 1,172,489. Surge diverters. GENERAL ELECTRIC CO. 4 Nov., 1968 [13 Nov., 1967], No. 52171/68. Heading H2H. A lightning arrester of the multi-gap cascade type includes a trigger gap connected in parallel with one of the main gaps, and a preionizer in parallel with, and physically adjacent to, the trigger gap. In the embodiment shown, the arrester has five main gaps 1-5 shunted by linear resistors 10, 11 and non-linear resistors 12, 13. Preionizer gaps 21, 22 are connected across main gaps 1 and 3, and dielectric tubes 25 also act as corona-producing preionizers for gaps 2 and 4. In operation, when the overall voltage increases, the preionizer gaps 21, 22 are the first to break down, irradiating the main gap 3 and a trigger gap 29 whose width is adjustable by means of a screw (30), Fig. 2 (not shown). Preionizers 23, 24 also break down. The voltage across gaps 1 and 3 now increases due to the non-linear resistors 12, 13, leading to the break down first of gap 1 triggered by gap 29, and then of gap 3. Voltage now builds up across gaps 2 and 4 leading to sparkover. and then finally gap 1 sparks again and gap 5 breaks down. The whole cascade is controlled by the adjustment of the trigger gap 29, and the settings of the main gaps are not critical. The gap 5 is shunted by a magnet coil 9 which urges arcs in the gaps 1-5 out to the extremities of the electrodes. The gaps are arranged in superposed planes between insulating discs, Fig. 2 (not shown).
Patent GB-1131320-A (GB)
Title: Control box for an oscillatory textile comb
IPC: D01G15/48
Filed: 1966-11-22
Abstract: 1,131,320. Shaft couplings. M. CIOFI. 22 Nov., 1966 [30 Nov., 1965], No. 52175/66. Heading F2U. [Also in Division D1] In an arrangement for driving the shaft 8B of a comb 8 with an oscillatory motion for removing the web from the doffer of a carding engine the end 7A of the output shaft 7 of the control box is hollow and provided with slots 7B so that it can encircle the shaft 8B of the comb and be clamped thereto by a resilient band 16 encircling end 7A and being tightened by a bolt 16A. The output shaft 7 and input shaft 6 of the control box are mounted in bearings 4, 5, 10A, 10B, the bearings 10A, 10B being carried in a cover 9 which is removably bolted to the main portion 1A of the control box. To dismantle the control box bolt 16A is released and the cover 9 unbolted and drawn away carrying the shaft 6, 7 and their bearings for further dismantling.
Patent GB-1040859-A (GB)
Title: Capsule with integral locking band
IPC: A61J3/07
Filed: 1964-12-29
Abstract: 1,040,859. Capsules. ELI LILLY & CO. Dec. 29, 1964 [Oct. 16, 1964], No. 52705/64. Heading B8C. The wall of a cap 39 on a capsule 30 includes a reduced portion 45 which is pushed over the mouth of the capsule to provide a friction fit. The reduced portion 45 may have axially extending grooves to vent air from the capsule during capping. The capsule and cap are preferably of gelatin.
Patent GB-1367500-A (GB)
Title: Bearings
IPC: F16C33/66
Filed: 1971-11-15
Abstract: 1367500 Replacing lubricant in bearings SPERRY RAND CORP 15 Nov 1971 [16 Nov 1970] 52867/71 Heading F2A A journal bearing assembly is provided with means for replacing the grease in the bearing consisting of a pair of inflatable rings 34, 36 one on either side of the bearing axially spaced from the bearing, there being air passages 62, 72 provided in the housing for inflating the rings and grease passages 54, 74 provided in the housing to permit grease to flow into and out of the space between the bearing and rings. When uninflated the rings preferably do not contact the shaft 12. The grease in the bearing is replaced by partially inflating the rings and introducing fresh grease through a passage 54 to the space 40 between the bearing and one of the rings 36. The grease passage is closed by a stopper 50 and the ring 36 inflated fully so as to force the fresh grease through the bearing, thereby expelling the old grease from the bearing. The other ring is then inflated causing the old grease and surplus fresh grease to be expelled from the housing through a passage 74. The rings are deflated leaving a grease-free space on either side of the bearing. On operation of the bearing, surplus grease is thrown out from the bearing into the space.
Patent GB-1189643-A (GB)
Title: Improvements in or relating to Teaching Machines.
Inventor: STEELE MALCOLM STUART
IPC: G09B7/073
Filed: 1967-04-02
Abstract: 1,189,643. Teaching machines. M. S. STEELE. 2 April, 1967, No. 52997/65. Heading G5G. A teaching machine system similar to that described in Specification 1,189,642 includes common presentation means for presenting items of multi-choice question form of a branching programme to a student group, a plurality of student response units each arranged to indicate the correctness or incorrectness of a student's response to an item, and a control unit operably coupled with the presentation means and response units to control in response to at least some of the electrical signals the successive presentation of instructional items at a branching point in the programme. In one embodiment comprising a modified circuit of the form shown in Fig. 5 of the co-pending Application if a predetermined number of students answer a question correctly within a given time limit at a branching point a first branch is followed whereas otherwise a second branch is followed. An alternative embodiment describes a programme wherein a branching point is preceded by a number of items. If a predetermined number of students answer any of the items incorrectly one branch will be followed whereas otherwise another branch will be followed.
Patent GB-1166041-A (GB)
Title: Natural Draught Dry Cooling Towers
Inventor: CALDWELL JOHN
IPC: F28B1/06
Filed: 1965-12-14
Abstract: 1,166,041. Air-cooled heat exchangers. ENGLISH ELECTRIC CO. Ltd. 13 Dec., 1966 [14 Dec., 1965], No. 53047/65. Heading F4S. A natural draught dry cooling tower comprises a shell 10, circular in plan, a plurality of coolers 13 arranged inside the shell around and below the base thereof and walls 16 extending radially from and acting as supports for the coolers 13. The shell 10 is of concrete and is supported by the walls 16 and/or by spaced concrete legs 12, and the coolers 13 which are normally divided into sectors may also be supported by legs 15. The walls 16 may terminate short of the shell 10. Each wall 16 is made of reinforced or prestressed concrete, timber, metal, asbestos sheet or, as shown, comprises an upper part 16A of concrete and a lower part 16B of earth or ash stabilized in the cement. In another embodiment, the tower shell comprises metal sheet cladding supported by cables which radiate from a central column and pass over a circular ring beam to anchorages on the ground. The radial walls 16 are provided below every third cable and support the ring beam. The shell 10 may be ellipsoidal or hyperboidal in shape. A wall 16 may be provided at each gap between the sectors of coolers.
Patent GB-1217966-A (GB)
Title: Improvements in or relating to the production of viscose
IPC: C08B17/02
Filed: 1968-11-08
Abstract: 1,217,966. Cellulose xanthate. ING. A. MAURER S.A., and BUSS A.G. 8 Nov., 1968 [10 Nov., 1967], No. 53140/68. Heading C3A. In a continuous viscose-making process, worm kneading machines are employed for the alkalization, sulphurization and dissolving stages, preferably such that the reaction in each stage is essentially completed. The machines may have one or more worms and reciprocating shafts. Ageing may be effected in a mixing screw and worm conveyer between alkalization and sulphurization with sufficient agitation to prevent local overheating. The output temperature of the alkalization stage may correspond to the input temperature of the sulphurization stage. Preferably, a stoichiometric quantity of alkali is used.
Patent GB-1425109-A (GB)
Title: Dental handpiece and a chuck wrench therefor
IPC: A61C1/14
Filed: 1973-11-16
Abstract: 1425109 Chucks AMERICAN HOSPITAL SUPPLY CORP 16 Nov 1973 [24 Jan 1973] 53305/73 Heading B3B [Also in Divisions A5-A6] A dental handpiece 10 comprises a housing 11 containing a rotor 13 rotating clockwise during normal operation when viewed from above, bore 20 of rotor 13 having a tapered surface 21 co-operating with spring jaws of a chuck 24, which chuck is threaded at 22, 23 to the rotor so that when the rotor is turned clockwise using recesses 32 while holding the chuck stationary using rectangular bore 30 the chuck moves axially upwardly and the jaws tighten to grip a dental burr, the chuck being self-tightening in response to resistance exerted against the burr in normal operation. To remove the burr, arms of a wrench 33 are fitted around a neck 12 of handpiece 10 to prevent body 34 turning relative to the handpiece and knurled cylindrical member 36 is turned counterclockwise to rotate rotor 13 via lugs 48 and recesses 32 while chuck 24 is held stationary by bar 35 which cannot rotate relative to body 34, knob 44 then being pressed to axially move bar 35 to expel the burr from the loosened chuck. Surface 21 and jaws 28 may be tapered outwardly and threads 22, 23 be right handed so that the loosened chuck may be extracted from opening 15. In a second embodiment the wrench has a banana-shaped handle to be held in the hand to prevent the wrench turning relative to the handpiece instead of the wrench having arms. In a third embodiment the wrench is in the form of an inverted U whose legs fit into recesses in the top of housing 11 to prevent the wrench turning. Instead of a knob, a compression spring may be fitted in the cylindrical member of the wrench to urge the bar downwardly.
Patent GB-1449194-A (GB)
Title: Isolation chambers
IPC: B01L1/00
Filed: 1973-11-20
Abstract: 1449194 Workbenches NEDERLANDS ORGANISATION FOR APPLIED SCIENTIFIC RESEARCH ON BEHALF OF PUBLIC HEALTH 20 Nov 1973 [24 Nov 1972] 53781/73 Heading B4X [Also in Divisions F3-F4] A treatment chamber adapted to prevent flow of pollutants, e.g. dust and bacteria from or into a working space comprises a housing 1 defining a chamber 6, a fan 17 and a high efficiency particulate air filter 18 for passing filtered air downwardly through the chamber to outlet grids 3, 5 at the rear and front respectively of a work surface 2, a transparent plate 7 spaced from the grid 5 to define an opening for access to the surface 2, at least one flexible flap 8 connected to the lower edge of plate 7, and means for preventing movement of the flap(s) 8 outwards with respect to said opening, whereby ambient air is always drawn through grid 5 outside the flap(s) 8. The preventing means is a rod 9 or an elastic belt secured to the lower edge of the or each flap 8 and stop members 10 fixed to plate 7. In the case of an elastic belt, further vertical bars (not shown) restrain outward flexing of the flap(s) 8 between the members 10. Air is drawn from chamber 6 by a fan 13 via a filter 12 and a portion is recirculated and the remainder discharged through a filter 16. The fans 13, 17 are both controlled by variable transformers, and the fan 13 is arranged to deliver a greater quantity of air than the fan 17. The fan 13 is also switched on before and switched off after the fan 17. An air flow rate meter is located downstream of the filter 16. The flap(s) 8 are made of a transparent smooth plastics material.
Patent GB-1248746-A (GB)
Title: Sealing strip
Inventor: ISAMATSU KUNIO
IPC: E06B7/22
Filed: 1968-11-14
Abstract: 1,248,746. Sealing strips. K. ISAMATSU. 14 Nov., 1968, No. '54010/68. Heading E1J. A resilient sealing strip particularly for sealing between the vertical edges of sliding doors and the frame jambs comprises a channel of U-shaped cross section, one side wall a constituting a flat base part of the strip for attachment to a sliding door and the other side wall c comprising two mutually inclined flat portions formed integrally and contiguous with each other. The outermost portion converging towards the base part, and may have a termi-- nating bulbous bead. The exposed parts are preferably covered with a pile.
Patent GB-1363695-A (GB)
Title: Process and apparatus for the production of solid salt hydrates
IPC: C01F7/746
Filed: 1971-11-23
Abstract: 1363695 Cooling press CHEMIEBAU DR A ZIEREN GmbH & CO KG 23 Nov 1971 [24 Nov 1970] 54290/71 Heading B1G [Also in Division Cl] A cooling press which may be used for producing solid salt hydrates from aqueous salt solutions comprises a series of parallel plates 1, with thickened portions 2, which are arranged in contact with one another and with the non-thickened portions 1 to 20 cms apart thereby forming chambers 3, in which crystallization takes place. Each plate, e.g. of aluminium, is provided with bores 4 and 6, which are connected to adjacent plate bores, and through which coolant is passed via connections 7 and 8. Each plate carries a recess (not shown) which when the plates are juxtapositioned form a channel connecting all chambers 3. To recover the solid material, plates 1 are removed in sequence or the distance between adjacent plates is increased whereby the material falls from the plates and drops onto a conveyor belt located beneath the press. The press is suitable for the production of aluminium sulphate hydrate.
Patent GB-544512-A (GB)
IPC: C03B19/02
Abstract: 544,512. Moulding glass. BRITISH THOMSON-HOUSTON CO., Ltd., Oct. 11, 1940, No. 15143. Convention date, Oct. 13,1939. Addition to 508,295. [Class 56] Relates to the method of casting vitreous material, described in the parent Specification, in which the operative surface, of the mould is coated with boron nitride to prevent adhesion of the material. According to the invention, molten glass is superheated to a temperature above 800‹C., before being poured into the coated mould, to obtain the required fluidity. Specification 449,807 is referred to.
Patent GB-1190921-A (GB)
Title: Improvements in Bag Making Apparatus
Inventor: ROWELL FRANK JOHN
IPC: B29C65/18
Filed: 1965-12-23
Abstract: 1,190,921. Packaging in webs. F. J. ROWELL. 23 March, 1967 [23 Dec., 1965], No. 54536/65. Heading B8C. [Also in Division B5] In a bag making machine of the type wherein a tube is pulled through the machine by longitudinally reciprocable jaws which effect a transverse seal, the carriage, upon which the jaws are mounted, is returned by a quickreturn mechanism. In the form shown, the carriage 1, carrying jaws 2, is reciprocated by an eccentric pin 5 acting through a connecting rod 7 which comprises a hydraulic, or pneumatic cylinder and piston. Whilst the carriage is on the downstroke to seal, and pull the tube through the machine, the piston is retracted inside the cylinder. When the carriage commences the up-stroke the jaws 2 are opened and fluid is passed into the cylinder to push the piston out and so effect a quicker return. The cylinder and piston may be used to vary the stroke to produce bags of different lengths.
Patent GB-1126199-A (GB)
Title: Apparatus for forming prills
IPC: B01J2/02
Filed: 1965-12-23
Abstract: 1,126,199. Prilling apparatus. LUMMUS CO. 23 Dec., 1965 [31 Dec., 1964], No. 54550/65. Heading B5A. Droplets or prills are produced of improved uniformity of size and shape from melts of urea or other fertilizer composition, e.g. ammonium nitrate mixed with limestone or dicalcium phosphate, or a melt of a nitrogenphosphate-potassium fertilizer, by spraying the melt outwardly under centrifugal force through holes 64 in the cylindrical wall 30 of a vertical rotated basket 20 which is divided along the length thereof into a number of circumferentially extending sections by a plurality of horizontal inwardly extending annular baffles 34-50, whereby gravitational head in the melt is not transmitted from one section to another. The wall 30 above the top horizontal baffle 34 is not provided with holes 64 and a series of eight, vertical baffles (52-60), (Fig. 1, not shown), extend inwardly therefrom and are intersected by a horizontal annular plate 32 on to which melt is thrown, from inlet conduits 24, 26 and via an inclined slinger plate 28 rotating with the basket drive shaft 22, to pass between the wall 30 and the outer edge of the plate 32 and overflow the horizontal baffles downwardly in succession. The apparatus may produce prills having 97À2 to 97À9% thereof in the size range between 750 and 1500 microns.
Patent GB-1125106-A (GB)
Title: Improvements in or relating to devices adapted to indicate the angular movement of a shaft
Inventor: KIBBEY RONALD LIONEL
Filed: 1965-12-31
Abstract: 1,125,106. Indicating devices. ROLLS ROYCE Ltd. 16 Nov., 1966 [31 Dec., 1965], No. 55383/65. Heading B3T. A device for indicating the angular movement of a shaft in a machine tool comprises a scale 3 mountable on the shaft 25, an index mark 3 adapted to be fixed to a part of the machine and a gear-box 1 mountable on a part of the machine and which has gears 7, 8, 9 and 10 which are drivingly connectable to the shaft 25 by means of a clutch member 5. The rotation of the scale 3 is effected by a handwheel 15 secured to the shaft 25 whereby with the clutch member 5 in a first position the rotation of the hand wheel effects direct rotation of the scale and with the clutch member in another position the rotation of the hand wheel effects rotation of the scale via the gears 7, 8, 9 and 10, the gear 7 being secured to the scale and the gear 10 being rotatably mounted on a bush 2. The scale may therefore be moved in either one of two speeds depending on the gear ratio selected. In the particular embodiment the ratio is 1 : 2.54 to provide a direct relationship between British and metric units.
Patent GB-1171795-A (GB)
Title: Device for the Determination of Distribution Factors.
IPC: G01N1/28
Filed: 1966-12-13
Abstract: 1,171,795. Determining partition coefficients; controlling processes. INCENTIVE A.B. 13 Dec., 1966 [16 Dec., 1965], No. 55836/66. Heading B1X. [Also in Division Cl] Partition coefficients may be determined using apparatus comprising mixing (process) vessel 1 having inlet 39 for two substantially immiscible liquids to be mixed in the vessel and outlet 9 for the mixed liquids, conduit 8 connecting outlet 9 with a separating device 7, conduits 13, 15 as outlets for the separated liquid phases and detector means 17 connected in each of the outlet conduits for measuring the concentration of a selected substance contained in each of the separated liquid phases. A separated liquid may be recycled to vessel 1 through lines 19 and 33 preferably via heat exchanger 35. The signals from detector 17 and also those from accessory measuring means 29, for example for pH or temperature measurement, may be used to control the supply of liquids to inlet 39. Examples are given.
Patent GB-1497674-A (GB)
Title: Printing plate by laser transfer
IPC: B41M5/382
Filed: 1974-12-24
Abstract: 1497674 Laser imaging material SCOTT PAPER CO 24 Dec 1974 [17 Jan 1974] 55846/74 Heading G2C [Also in Division B2] An article suitable for use in making a printing plate comprises a substrate transparent to laser radiation having thereon a coating comprising (a) particles which absorb laser radiation, (b) a self oxidizing binder; and (c) a cross-linking agent or a cross-linking agent in combination with a crosslinkable resin or a polymeric material or resin which does not oxidize under the influence of laser radiation; and, in intimate contact with the coating, a lithographic printing surface. The particles may be of carbon black; nitrocellulose is a suitable self-oxidizing binder. Other specified components are methyl methacrylate, polyvinyl butyral, allkyd resin, a melamine derivative crosslinking agent p-toluene sulphonic acid, epoxy resin, styrene-alkyl alcohol copolymer, and cresolformaldehyde novolac. On absorption of laser energy the coating is selectively transferred from the film to the lithographic printing surface. In Examples the transparent film used is of polyester, and the coated film is placed in contact with aluminium foil (in some cases having a lithographic coating of poly (vinyl alcohol) as the lithographic printing surface.
Patent GB-1489094-A (GB)
Title: Seat member for a caster roller unit
IPC: A45C5/14
Filed: 1974-12-28
Abstract: 1489094 Castors MARUWA ECHO CO Ltd 28 Dec 1974 55958/74 Heading A4U A castor roller unit comprises a castor roller 30, Fig. 2, swivelly supported by a base-plate 26, and a separate seat member 36, Fig. 3, adapted to be secured to a suitcase &c., to detachably receive and anchor the base-plate 26, the seat member 36 comprising a substantially rectangular plate having a recess 38 with a pair of opposed grooves 40 to slidably receive the base-plate 26, said recess including a resilient tongue 46 with a curved outer end 48 having at least one stud 50 to engage a socket 34 of the base-plate 26.