baber/WOPTO huggingface dataset:
Patent GB-1461292-A (GB)
Title: X-ray apparatus including a supervisory circuit
IPC: A61B6/10
Filed: 1974-04-05
Abstract: 1461292 Testing electrical circuits; measuring voltage PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 April 1974 [9 April 1973] 15126/74 Heading G1U An x-ray examining apparatus having a supervisory circuit connected to at least one transducer on the apparatus which operates a switching circuit if the transducer output voltage lies within an inhibited range, has a test circuit including a generator producing signals representing the inhibited range which also controls switches to alternately connect the supervisory circuit input to the transducer and the generator. The position of the examining table is controlled by three motors 7a, 7e, 7c for longitudinal and transverse motion and angle of tilt respectively. Each motor drives the wipers of two identical potentiometers e.g. 4a, 4b connected to equal voltages of opposite polarity. The wipers 6a-6f are connected to a first supervisory circuit 1 which adds the pairs of voltages producing an output signal if any pair is unbalanced. One output 6a, 6e, 6c from each pair is fed to a second supervisory circuit 3 where the voltage values are compared with predetermined values to indicate if the table is in an inhibited region of movement and/or tilt. The supervisory circuit 1 comprises a summing feedback amplifier having six inputs connected to the potentiometers via identical input resistors Fig. 2 (not shown). The circuit 3 Fig. 3 (not shown) comprises a number of comparators for each input 6a, 6c, 6e, each comparator representing a particular critical value and receiving a reference value from a resistive divider chain. The comparator outputs are combined to provide logic signals indicating inhibited regions. The test circuit 2 Fig. 4 (not shown) comprises a number of voltage sources connected to the outputs 26a, 26c, 26e via F.E.T.'s which are switched by the decoded outputs of a counter driven by a first pulse generator A second pulse generator provides the switch changing signals. Thus over a period of time, the generator output signals are changed to represent all the inhibited regions of the apparatus.
Patent GB-341827-A (GB)
IPC: H01L25/07
Filed: 1930-05-17
Abstract: 341,827. Static contact rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Amsden, R. D. ; 39, Grave Avenue, Lynn, Massachusetts, U.S.A.) May 17, 1930. Convention date, May 18, 1929. [Class 37.] In copper-oxide rectifiers of the type in which discs oxidized on one side and threaded on a central bolt are separated by lead &c. washers the washers are formed with a thinner portion surrounding the central hole so that, while fitting on the bolt, they are not in contact with the oxide layer near the bolt, where it is liable to be broken. In the arrangement shown the washers 12 are formed with a fin 15 on the side remote from the oxide layer 11 and fitting closely on the insulating sleeve 13 surrounding the bolt 14. The fin may be in the median plane of the washer instead of at one side.
Patent GB-753076-A (GB)
Title: Improvements in the construction and manufacture of metal units for use in constructing walls, partitions, roofs and other structures
IPC: B21D39/03
Filed: 1954-05-24
Abstract: 753,076. Metal sheets. ROGERS, J. May 24, 1954, No. 15189/54. Class 20(2). In constructing walls, partitions, roofs &c. elongated sheet metal units 1 of the section shown are utilised. Each unit is formed with an outer return flange 2 along its upper edge, an inclined portion 5, and an inner return flange 8 at its lower edge for interlocking with the flange 2 of an adjacent unit 1. The units may be formed from a roll of sheet metal by feeding it to bending rollers and/or dies, and severing rolls. Specification 753,077 is referred to.
Patent GB-1243594-A (GB)
Title: Improvements in or relating to automatic frequency controlled oscillators
IPC: H03C3/09
Filed: 1969-03-24
Abstract: 1,243,594. Automatic frequency control. MARCONI CO. Ltd. 24 March, 1969 [11 April, 1968], No. 16192/69. Heading H3A. In an automatic frequency control system, pulse trains S 1 from the controlled oscillator and S 2  from the standard oscillator are fed to a comparator 21 to produce an output on one or other of two lines, depending on which of the two signals has the higher frequency, the two outputs being fed to an integrator, Fig. 3 (not shown) to produce the necessary control signal for adjusting the oscillator frequency. Signal S 1 is applied to the "set" input of a bi-stable 24, and signal S 2  (of at least three times the frequency of S 1 ) is applied to the trigger input. The output signal S 3  from bistable 24 is as shown in Fig. 4 (a). 4 (b) or 4 (c) depending on whether signal S 1  is correct, too high or two low. The signal S 3  is then applied to a two-stage shift register, the inputs and output from which are combined in gate 29 to give the logical output A B C and in gate 28 to give the logical output AC. The two outputs are fed via pulse lengtheners 31, 33 to the integrator, Fig. 3 (not shown), the AC signal path also including an inverter 32.
Patent GB-628663-A (GB)
Title: An improved flexible coupling
IPC: F16D3/18
Filed: 1947-06-10
Abstract: 628,663. Universal joints. McPHEE, K. M. June 10, 1947, No. 15218. [Class 80 (ii)] In a universal joint where the driving and driven members 5, 20 are connected through an internally toothed gear 15 and a gear member 16, a pair of segmental spherical blocks 22, 23 is disposed one on each side of, and in engagement with, the gear member and with complementary spherical seatings in the internally toothed member, the blocks and seatings being radial to a point p on the axis of the coupling and a peripheral clearance being provided between the two sets of gear teeth. An externally toothed member 16 is integral with a sleeve 19 keyed to the driven shaft 20, and is held between two segmental spherical blocks 22, 23 freely slidable in two housing members 5, 12 bolted together to form the driving member and being provided with the internal teeth 15. Clearance is provided in the gear teeth and between the block 23 and the sleeve 19 to allow axial and transverse misalignment. The block 22 is bored at 32 to form a lubricant chamber and a flexible sleeve 33 is provided to retain the lubricant. An alternative mounting of the joint for use with two taper ended shafts is shown.
Patent GB-283059-A (GB)
Title: Centreless grinding machines
IPC: B24B5/18
Filed: 1927-06-08
Abstract: 283,059. Hultgren, A. G. E. June 8, 1927. Centreless grinding.-In a centreless grinding- machine in which the rollers 1 to be ground are located or fed axially between a grinding wheel 3 and a regulating-wheel 2 and are supported on a rest, in order to avoid the production of rollers of polygonal cross-section, or to produce rollers having a predetermined polygonal section, the rest 4 supports the work at at least two points and is rockable about a knife edge, bearings or an edge of part cylindrical form engaging a groove of larger radius of curvature. By variation of the angles a, #, y, #, Fig. 3<a>, the required form of roller is obtained, and by arranging the axes of the several parts to converge to a point, conical or pyramidal articles may be produced; a stop is provided in this case at the largo end of the article. The contact edges of the rest 4 may be provided with rollers, driven or idle; the regulating-wheel may be mounted on the rest and a stationary guide replace the wheel 2. As shown in Fig. 5, each limb of the rest, or one limb only, may carry a rocking rest to give additional supports for the work.
Patent GB-296293-A (GB)
Title: Improvements in the construction of motor car hoods and the like
IPC: B60J7/08
Filed: 1928-05-24
Abstract: 296,293. Suddards, T. D. May 24, 1928. No Patent granted (Sealing fee not paid). Hoods, when collapsed, are adapted to be entirely encased or housed at the top of the wind screen pillars. The longitudinal members 4 are pivoted at 12 in a casing at the top of the wind-screen pillars 7 and each is formed in two parts hinged together about vertical axes 11. The members, when extended are supported by side pillars 10 and are connected together by transvers members 9. A cover 2 mounted on a spring roller 1 is adapted to be drawn over the longitudinal members to enclose the vehicle.
Patent GB-614009-A (GB)
Title: Improvements in or relating to the colouration of yarns or fabrics composed wholly or partly of nylon
IPC: D06P1/653
Filed: 1947-05-16
Abstract: Textile materials composed wholly or partly of nylon are pretreated in a bath containing cresol sulphonic acid, phenol sulphonic acid, salicylic acid or cinnamic acid, washed, and subsequently dyed, e.g., with cotton dyes, acid wool dyes, dispersed cellulose acetate dyes, vat dyes, solubilized vat dyes or azoic dyes.  In examples: (1) nylon fabric is treated with aqueous 2 per cent salicylic acid at the boil, washed and dyed with Chlorantine Fast Orange G; (2) nylon fabric is boiled in 2 per cent aqueous cinnamic acid, washed and dyed with Xylene Brilliant Cyanine 6B; (3) nylon fabric is boiled in 2 per cent aqueous cinnamic acid, washed and dyed with Serisol Brilliant Blue BG; (4) nylon fabric is boiled in 2 per cent aqueous cinnamic acid, washed and dyed with Caledon Red BN200; (5) nylon fabric is boiled in 2 per cent aqueous cinnamic acid, washed and dyed with Soledon Orange RS; and (6) nylon fabric is boiled in 2 per cent aqueous salicylic acid, washed and dyed with Brenthol AS and developed with Brentamine Fast Blue BB Salt.  Specification 534,085 is referred to.
Patent GB-730836-A (GB)
Title: A sealable container of thermoplastic material and sealing apparatus therefor
IPC: B65D43/02
Filed: 1953-06-04
Abstract: 730,836. Sealing containers. KUNIK, W. June 4, 1953 [July 28, 1952], No. 15424/53. Classes 94 (1), 125 (2) and 125 (3). A thermo-plastic cover 4 with a beaded skirt 5 and packing ring 71 is sealed to a thermoplastic container 1 with a circumferential bead 3 by welding the beads together at spaced points 8, so that excess pressure arising within the container while it is being heated is vented through the spaces between the welds. The lid is first pressed down upon the container to compress the packing ring 7<SP>1</SP> upon the rim 2 and bring the bead 6 on the cover close to the bead 3 on the container. The beads are then heated at spaced points to soften them and fuse them together. The beads 3, 6 remain a small distance apart to facilitate the introduction of a knife to open the container. Fig. 5 shows the lidding machine comprising a rotary disc 31 with holes for the lidded containers to be sealed, which are positioned on a platform 12 raised by a hand lever 25, through cam 26 and bell crank lever 16, to press the lid against a plate 14 fixed at the lower end of a vertical bar 13 to clamp the lid in place. The lever 25 also lowers a heating ring 20 adapted to surround the lid and having spaced inward projections engaging the outer wall of the skirt 5 and the beads 6, 3 so that welding occurs at these points. As the lever 25 is released it is held in an intermediate position, with the heating ring removed from the container, by spring detents on the bar 13, delaying its return so that the container is not unclamped until the softened material has reset. The cam 26 may be adjustable to vary the pressure on the lid and the lever 25 and disc 31 may be power driven.
Patent GB-254490-A (GB)
Title: Improved device for protecting the eyes from road glare
IPC: G02C7/16
Filed: 1925-06-15
Abstract: 254,490. Worthy, W. June 15, 1925. Eyeshields. - To protect the eyes from road glare two separate opaque plates A are carried on the nose by spring clips B so that they lie in a horizontal position. The edge a of each plate A is shaped to fit the face below the eyes. In a modification the plates are mounted on an ordinary bridge piece and provided with temple wires.
Patent GB-725754-A (GB)
Title: Separation of liquids by thermal diffusion
Inventor: JONES ARTHUR LETCHER
IPC: B01D17/09
Filed: 1953-06-04
Abstract: <PICT:0725754/III/1> A liquid mixture is separated into two fractions by thermal diffusion by passing a stream of the mixture through a substantially horizontal slit between two closely-spaced walls maintained at different temperatures, the feed rate to one end of the slit being greater than that which would give the same degree of separation as a centrefeed vertical counter-current operation under the same conditions; the two fractions flow concurrently through the slit and are removed separately at the other end.  As shown, liquid flows from feed pipe 22 through slit 10 between two walls 11, 12, which are heated and cooled respectively by coils 14, 16; each fraction is withdrawn through a transverse channel 24, holes 26, a flow equalizing passage 27, and line 29.  Slits may be arranged in parallel and one or both of the fractions obtained may be passed to further slits to effect separation in a two or three stage process with recycling.  A suitable slit width is less than about 0.15 inch and either the upper or lower wall may be at a higher temperature than the other.  Graphs show the relationship between feed rate, degree of separation, and thermal efficiency for a single, two, or three stage process, and for centre-feed vertical countercurrent operation.  Reference is made to the separation of mixtures of toluene and methylcyclohexane, cetane and monomethylnaphthalene, amyl stearate and methylnaphthalene, and of a lubricating oil into dark and light components; in the concentration of vitamins, isotopes, and viruses, the enriched fraction is removed at a lower rate than the other fraction.
Patent GB-273679-A (GB)
Title: Improvements in or relating to abrasive articles
IPC: B24D3/02
Filed: 1927-06-10
Abstract: 273,679. Carborundum Co., Ltd., (Assignees of Hartmann, M. L.). July 3, 1926, [Convention date]. Plastic compositions containing alumina, corundum, and like abrasive agents.-Abrasive articles, for example wheels, discs, abrasive paper and cloth, &c. consist of a bonded mass of abrasive grains and other grains which break out more readily than the abrasive grains, all of the grains being of substantially uniform size, whereby glazing of the operative abrasive surface is avoided. The additional grains may be of calcined clay, diatomaceous earth, a grog containing alumina or corundum, or may comprise flint, magnesia, glass, or other material of a hardness inferior to that of the abrasive grains, and the bond may be ceramic, or may comprise synthetic resins, cement, rubber, shellac, glue, &c. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of porous alumina. This subject-matter does not appear in the Specification as accepted.
Patent GB-1321035-A (GB)
Title: Device for coupling a fly-wheel to a shaft
IPC: F16D1/06
Filed: 1972-04-05
Abstract: 1321035 Securing flywheels on shafts MEFINA SA 5 April 1972 [20 April 1971] 15580/72 Heading F2U In a sew-machine clutch wherein a clampblock 14 is screwed a long a thread 10 on a shaft 1 to clamp a driving flywheel 7 axially against the readial face of a collar 5 pinned at 6 to the shaft, and the extent of the relative screwing rotation between the shaft 1 and clampblock 14 is restricted by engagement between a radial pin 12 on the shaft and an axial screw 13 in the clamp-block, the latter is provided with two circumferentially-spaced axial threaded bores into either of which the stop screw 13 may be selectively installed, so that the extent of the unscrewing movement of the clamp-block 14 when de-clutching the flywheel 7 is held to a minimum. The flywheel 7 is carried on the shaft by a bush 8 of low friction coefficient, and clamp force is transmitted through a diaphragm spring 11 having non-circular engagement with the shaft 1, and carrying the stop pin 12. A cover 17 provides access to the screw 13. In Fig. 4, not shown, each of the bores receiving the stop-screw 13 is formed as a stepped bore having an enlarged outer diameter, a threaded intermediate part and a reduced inner diameter, the latter receiving and guiding a reduced non-threaded end of the screw, the three bores being connected by coned parts. The clamp-block 14 is in this case of synthetic resin, and the screw 13 cuts its own thread in the intermediate part of the bore.
Patent GB-948923-A (GB)
Title: Improvements in winding members for electrical rotating machines
IPC: H02K3/26
Filed: 1960-05-03
Abstract: 948,923. Dynamo-electric machines. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. May 3, 1960 [May 4, 1959; Sept. 7, 1959], No. 15585/60. Addition to 874,394. Heading H2A. The printed circuit winding in a planar gap rotary electrical machine have little or no radial portions but comprises several oblique portions, e.g. 19 .. 21 in Fig. 7, or an arcuate shape, e.g. 23 in Fig. 9, or a combination of straight and arcuate portions. The winding may be lap- or wave-wound and may form the rotor winding of a machine having a permanent magnet field structure the pole shoes 14 of which may be shaped, e.g. at 19, 20, Fig. 13, to accord with that of the rotor printed conductors. The magnets 12, 21, 22 may each be replaced by two magnets if the pole shoe shaping permits. Specifications 902,295 and 931,654 also are referred to.
Patent GB-452676-A (GB)
Title: Improvements in or relating to automatic synchronising devices for internal combustion engines, especially for those used upon flying machines
IPC: F02D25/02
Filed: 1935-05-29
Abstract: 452,676. Speed governors. SOC. D'ETUDE ET DE CONSTRUCTION D' APPAREILS DE TELEMECANIQUE, 11<bis>, Rue de Laplanche, Paris. May 29, 1935, Nos. 15625 and 15626. Convention dates, May 29, 1934 and Dec. 11, 1934. [Class 57] Automatic means for synchronizing two or more internal-combustion engines, as used for example in aircraft or for driving alternating- current generators, comprises differential gearing, two elements 15, 16 of which are connected to the two engines 11, 12 through flexible shafts 13, 14, the other two elements 17, 18 being secured to a worm 20 gearing with a worm wheel 21 which is coupled by a flexible shaft 22 to the controls of one or both engines. Difference in speed between the two engines causes rotation of the worm 20 to correct the same. Fig. 2 shows an arrangement in which the shaft 22 actuates a rack or worm device 42 to alter the effective length of links 44, 45 connected to the hand control 24, 26, 28 of one of the engines. The corresponding link 41 connected to the hand control 23, 25, 27 of the other motor is of fixed length. Levers 31, 32 provide a hand adjustment of the connections between the hand levers 23, 24 and the links 41, 45, and the device is further shown connected to arms 35, 36 actuated by a servomotor 37. In other modifications, the movement of the differential gear caused by differences in speed of the engines is conveyed to means for varying the effective length of links in the hand controls of the throttles of one or both engines. Arrangements of two differential gears for synchronizing three engines are also described. Instead of acting on the engine throttle controls, the differential may adjust the speed or output of the compressors supplying the engines, the fuel pumps in the case of Diesel engines, or the pitch of the propellers driven by the engines. Dash-pots may be introduced into the connections to prevent hunting.
Patent GB-859439-A (GB)
Title: Process for the manufacture of aromatic hydrocarbons
IPC: C07C5/41
Filed: 1957-05-16
Abstract: Aromatic hydrocarbons are prepared by the aromatisation in the vapour phase of diisobutylene, trisobutylene, hydrogenation products thereof, or mixtures of such compounds over a solid aromatisation catalyst at 450-650 DEG  C. in the presence of benzene, a homologue of benzene or mixtures thereof as diluent.  The diluent is preferably benzene but may be a homologue such as toluene, p-xylene, cumene, ethylbenzene, pseudo-cumene, propyl-benzene, cymene or butylbenzene. Homologues containing only methyl or tertiary butyl groups are preferred.  It is often advantageous to use as diluent the aromatic hydrocarbon produced by the process.  Amounts of 1-4 mols of diluent per mol of hydrocarbon starting material may be used.  Throughputs of 0,4-0,9 vol. of liquid hydro carbon starting material per vol. of catalyst per hour are preferred.  The catalyst may be an oxide of a Group VI metal and may be used as a mixed compound with or mixed with oxides of titanium, zirconium, thorium, or vanadium or mixed with platinum or palladium metal.  The catalyst may be activated with an oxide of an alkali, alkaline earth or rare earth metal and supported on an oxide of a Group III metal.  Preferred are catalysts containing 5-40% chromia, 1-10% potassia, 0,5-5% ceria and 93,5-45% gamma-alumina.  Water vapour should be kept below 0,05% by volume of the starting mixture in the vapour phase.  In the examples a catalyst containing 14,7% chromium, 1,73% potassium and 0,46% cerium as their oxides on gamma-alumina is used to prepare p-xylene from di-isobutylene (1) in the presence of benzene and (2) in the presence of toluene. Specifications 777,732 and 795, 35 are referred to.
Patent GB-182302-A (GB)
Title: A method of removing a liquid from the surface of molten metal
IPC: F27D3/15
Filed: 1921-06-07
Abstract: 182,302. Thermal Industrial & Chemical (T.I.C.) Research Co., Ltd., and Morgan, J. S. June 7, 1921. Evaporating by contact with hot liquid.- Liquid is removed from the surface of molten metal b by a revolving drum c or disc, from which it is scraped by a device d so as to flow into a discharge gutter. The drum or disc may be partly immersed in the metal or may be supported so as just to dip into the liquid to be removed. A series of discs on a common axle may be used. The revolving surface may be non-metallic in character, the drum being preferably made of steel with a silica sheathing. The device is used in connection with the distillation of liquids or the drying of fusible solids by means of molten metal.
Patent GB-1367593-A (GB)
Title: Quick-acting connection device for pipes intended to convey cold fluid s
IPC: F16L59/13
Filed: 1973-04-02
Abstract: 1367593 Pipe couplings G BORMIOLI 2 April 1973 [7 April 1972] 15768/73 Heading F2G In a quick-release pipe coupling, intended for cryogenic use, in which the flange of a pipe to be coupled is secured by pivoted hooked levers 12, the levers and their operating mechanisms are carried on sleeves 7 and 15, which are supported clear of the surface of the coupling 1, by means of spirally arranged resilient arms 8 and 14. Preferably, the arms are curved and made of stainless steel. The coupling may include a spherical valve 2.
Patent GB-286525-A (GB)
Title: Improvements in or relating to garment hangers
IPC: A47G25/48
Filed: 1927-06-14
Abstract: 286,525. Weiss, B. June 14, 1927. Coat and like hangers. -A garment hanger comprises a yoke and a pair of pivoted arms for holding the garment in place, the arms being raised to release the garment by the depression of finger pieces against spring pressure; the hook is also provided with a spring closing-member. The pivoted arms 11, Fig. 1, furnished with pads 12, are mounted in a metal housing 16 and are depressed to hold the garment by means of a spring 37, Fig. 2. The ends of the arms are engaged by a sliding member 30 which, when depressed, frees the arms and is held in its lower position by a spring catch 34. The entrance to the hook 24 is closed by a gate 21 mounted on a spring 20 and capable of swinging either inwards or outwards.
Patent GB-479413-A (GB)
Title: Improvements in or relating to tele-cinematograph transmitters
IPC: H04N3/38
Filed: 1937-06-08
Abstract: 479,413. Television transmitters. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. June 8, 1937, No. 15877. Convention date, June 8, 1936. [Class 40 (iii)] A film picture projector with optical compensation of a steady movement of the film is used with a scanner with a storage effect, for example, an iconoscope.