baber/WOPTO huggingface dataset:
Patent GB-985188-A (GB)
Title: Microwave tubes using periodic focusing fields
IPC: H01J25/18
Filed: 1962-02-07
Abstract: 985,188. Travelling wave tubes; magnetrons. VARIAN ASSOCIATES. Feb. 7, 1962 [March 6, 1961], No. 4709/62. Heading H1D. A high-frequency charged-particle discharge apparatus comprises a source of charged particles, means for projecting the charged particles in a beam traversing a predetermined path, the beam having a charge density great enough to produce fast and slow space-charge waves of different phase velocity, means including a plurality of spaced magnetic members having spatially alternating polarities disposed along the beam path to perturb particle trajectories of the beam in a spacially periodic manner to produce spatial harmonics of the slow space-charge wave of the beam, means at the terminal end of the beam path for collecting the particles, and a structure disposed along the beam path for propagating electromagnetic energy with phase velocities such that the fields of the electromagnetic energy interact cumulatively with a spatial harmonic of the slow space charge wave of the beam to produce a net transfer of energy between the spatial harmonics of the beam and the electromagnetic energy on the electromagnetic propagating structure. As shown, Fig. 1, a forward wave amplifier has an annular beam generated by an annular cathode 1, and under the action of a periodic magnetic field, the beam is reduced in cross-section to increase its current density as described in Specification 959,674. The beam then enters a region 9 where it is focused by a further periodic field as described in Specification 945,610. The beam interacts with an electromagnetic wave fed into the coaxial line 13 via an input waveguide 11 and transducer 12. The beam is collected by a structure 10, and the amplified output is taken by a coaxial line 15 to a load. Backward wave mode operation may be utilized Fig. 2 (not shown). In place of the coaxial line, an unloaded waveguide of circular or rectangular cross-section or parallel plane conductors may be used. A magnetron device according to the invention, Figs. 11 and 12, has a discshaped beam generated by an annular cathode 61 directed into an annular interaction space 65. Under the action of a transverse and circumforential periodic magnetic field, the electrons are periodically deflected in the plane of the beam, causing them to have a certain spatially periodic, alternating angular velocity transverse to the general direction of the stream of electrons. Eventually, the beam is collected by a a structure 70, the unequal arcs of magnetic polepieces 71, 711 giving the beam the necessary drifting motion.
Patent GB-451044-A (GB)
Title: Improvements in, or relating to, automobile vehicles having independently-sprung road-wheels
IPC: B60G11/23
Filed: 1935-02-14
Abstract: 451,044. Vehicle spring-suspensions. MACBETH, C., 67, Norwich Union Chambers, Congreve Street, Birmingham. Feb. 14, 1935, No. 4711. [Class 108 (ii)] In an independent wheel-suspension system of the torsion-spring parallelogram-link type the springing is applied to the top link and the connections between the outer ends of the links and the wheel carrier comprise ball joints such that, by the action of springing, the joint member at the end of the top link is pressed downwardly onto or into the complementary joint member on the wheel carrier. The wheel carrier g is mounted in the upper and lower links a, b by means of ball and socket joints. The ball members f<3>, f<4> are mounted in the sockets f<1>, f<2> by split linings h<1> which are held in position by screwed rings h<2> and the joints are lubricated, in the case of the upper one, by a reservoir h and ducts therefrom while the lower ball member f4 has bored therein a reservoir and a duct leading thereto bored in the carrier g and provided with a filling plug. The upper short link a alone is sprung, being journalled at its inner end on a spindle d which is fixed in the chassis bracket e<1> and has secured to it the static disc c<1> of a rubber torsion spring c, the torque transmitting disc c<2> being secured to the inner end of the link a. The spring c is a single one, and is disposed in front of the link a. In modifications the ball members of the joints may be on the links or on one link and on the wheel carrier while the torsion spring may be a double one disposed fore- and-aft of the upper link a. Specification 450,835 is referred to.
Patent GB-287477-A (GB)
Title: Improvements in machines for wrapping up razor blades
IPC: B65B25/00
Filed: 1928-02-15
Abstract: 287,477. Hesser Maschinenfabrik Akt.-Ges., F. March 18, 1927, [Convention date]. Addition to 263,763. Sheet-separators; pusher feeds for single sheets..-Relates to modifications of the wrapperfeeding and package delivery apparatus of the parent Specification. The wrappers are fed from a pile 1, Fig. 2, by an oscillatory suction device 3, which detaches the lowermost wrapper and moves it down to contact with a feed roller 6, the device 3 being accommodated in a groove in the roller. A roller 20 on pivoted arms 21 then moves from the position shown in dotted lines to that shown in full lines. This causes the wrapper to be drawn away from the pile and fed between rollers 26, 34. The roller 26 may apply adhesive to parts of the wrapper from a supply 37. Members 138, on a plate 139 pivoted at 141, engage behind the two lateral naps of the wrapper and push it on to the rotary table 105, guides 170 controlling the feed.
Patent GB-1370842-A (GB)
Title: Contact rail unit
IPC: H01R25/14
Filed: 1972-02-01
Abstract: 1370842 Distribution rails NOKIA AB OY 1 Feb 1972 [2 Feb 1971] 4745/72 Heading H2E A contact rail unit 1 comprises a channel-like elongate body 2, of insulating material, within the side walls of which are formed grooves 3, accommodating uninsulated conductors 4, which have formed at regular intervals branched loops 5 transversely disposed across the channel of body 2. A current collecting device, Fig. 5, includes an insulating body 9, an intermediate insulating plate 11, pressed outwards from the body 9 by a spring 12, and retained by L-shaped conductors 10, which are positioned, and formed such that when current collecting device is offered to the rear face 2a (not shown) of contact rail 1, contact fingers 10 are inserted through holes 7, the sizes of which differ to ensure correct contact mating, the current collecting device is pushed longitudinally so that the L-shaped ends of contact fingers 10 slide over conductor loops 5 being reliably pressed in contact by the resilient action of spring 12. In further embodiments, the contact rail unit may be fitted with more than two conductors, e.g. four, the contact rail unit may be fitted with a cover 14 (not shown) with earth rail 15 (not shown) the connector 9 being modified to include a further contact finger.
Patent GB-621335-A (GB)
Title: Improvements relating to brakes
IPC: F16D65/52
Filed: 1947-02-19
Abstract: 621,335. Automatically adjusting brakes. PRATT, J. H., and MANLEY, G. E. Feb. 19, 1947, No. 4765. [Class 103 (i)] A device, whereby a predetermined clearance between the friction surface of a brake and the drum on which it acts, when the brake is in the " off " position, may be maintained substantially constant despite the wearing away of the friction lining 12, comprises a stop member 14 having at its outer end a phunger part which is of a material substantially harder than the friction lining and which contacts the drum, and at its inner end a cranked part 14d, which by bearing against an abutment 19a rigid with the back plate so cants the member 14 that a very high frictional resistance to further movement is produced between the sides of a slot 14a in the stop member and the rectangular section part 13a of a pin 13 passing through it. The pin 13 is secured to the web of the brake shoe by a nut 18 and has on it above the member 14 a friction washer 15 under the compression of a spring 17, so that when the brake is applied the stop member moves out with the brake shoe web until the plunger part contacts the drum, but as the brake lining wears away the stop member is pressed in relative to the shoe by the brake drum, thereby maintaining a fixed clearance when the shoe is fully retracted. The fixed abutment 19a is in the form of a conical plug that may be screwed in or out of the back plate 6 to provide fixed adjustments of the brake shoe clearance.
Patent GB-787720-A (GB)
Title: Improvements in or relating to photographic camera shutters
IPC: G03B7/081
Filed: 1956-02-15
Abstract: 787,720. Photo-electric control and indicating arrangements. GAUTHIER GES., A. Feb. 15, 1956 [March 11, 1955], No. 4771/56. Class 40(3). A photographic shutter is provided with a built-in exposure meter including an electronic amplifier. The amplifier element is preferably a transistor so that it can be fitted inside the shutter housing. Fig. 2 shows a portion of shutter housing having a side wall 1, a base plate 2 and centre tubular portion 2a. Mounted inside the housing and between the base and front plates are arranged a meter 3, a transistor 4 and a battery 6 mounted between resilient contacts 7a. The photo-sensitive element is, in this embodiment, placed elsewhere on the camera away from the shutter itself. The amplification provided by the transistor enables a smaller and more robust meter movement to be used than would otherwise be possible. The spring detent secured cover section 8 in the side wall 1 of the shutter may be removed to gain access to the battery for replacement purposes. It is possible by the use of amplification to reduce the size of the photo-sensitive element and/or to put a light-dispersing element of opal glass in front of it to improve its linearity, particularly at high light intensities. A photosensitive element of small area can be arranged on or inside the shutter housing itself and may " view " through a suitable aperture in the front cover; thus in certain circumstances the whole photo-electric exposure meter may be mounted inside the shutter easing. If two directly-coupled stages of transistor amplification are used the meter spindle may carry a driving member capable of automatically adjusting the diaphragm or the shutter speed. Adjustment of the former by means of a gear drive to the diaphragm setting ring is preferred as a steady adjustment is more easily possible. A switch is preferably provided in the battery circuit and may be operated manually or automatically in accordance with the operation of the camera.
Patent GB-1034651-A (GB)
Title: Composite fabrics
Inventor: PARKE JOSEPH BEATTY
IPC: D03D1/00
Filed: 1962-02-02
Abstract: An air permeable woven fabric has one face consisting predominantly of inherently hydrophobic synthetic fibres or filaments and the other face consisting predominantly of inherently hydrophilic natural or regenerated fibres or filament. An example is given of a fabric woven three-and-one broken twill with a polyester warp and a linen weft. Other combinations are polyethylene terephthalate with either cotton or viscose rayon. Preferably the hydrophobic face is outermost when the fabric is made up into garments.
Patent GB-1199554-A (GB)
Title: Improved Method and Apparatus for Varying Physical Condition of a Gas.
IPC: C02F1/04
Filed: 1969-01-29
Abstract: 1,199,554. Moving gases hydraulically. ANGLO AMERICAN CORP. OF SOUTH AFRICA Ltd. Jan.29, 1969 [Feb. 2, 1968], No.4837/69. Heading F1N. [Also in Divisions B1-2] Apparatus for changing the temperature and moisture content of a gas comprises expansion and compression compartments 4, 5, each having an inlet valve 7 or 11 and an outlet valve 8 or 10 and each variable in volume by a reciprocating liquid piston 1. The reciprocation of the pistons may be effected by mechanically rocking the compartments or simply as a result of the sequentially occurring pressures in the compartments. The apparatus may perform either a heating or cooling cycle. To operate as an air heater and dehumidifier, the air for treatment is admitted to the expansion compartment 4 through the inlet valve 7. The valve 7 is closed by a spring 15 before the liquid piston 1 completes its downward stroke in the compartment 4. Hence the air is expanded and moisture is condensed before pressure responsive outlet valve 10 opens to admit the air to a vessel 9, possibly containing a heater. The condensate is removed through a flexible tube 29 leading through a float 3 situated above the liquid 1. From the vessel 9 the air enters the compression compartment 5, this transfer occurring during the downward stroke of its piston. Dryer and hotter air, but at substantially the original pressure, is then discharged from the compartment during the piston's upward stroke. To cool air a reverse operation is effected, and this mode of operation may additionally be used to evaporate a liquid for example in desalination of brine. Thus air enters through the valve 11 and is compressed in the compartment 5 in the presence of the brine injected into the compartment through a spray 26. The compressed air is transferred via a vessel 6 to the expansion compartment where the evaporated water is condensed. The concentrated brine is removed through a valve 27.
Patent GB-1122712-A (GB)
Title: Circular travelling grate machine
Inventor: BAN THOMAS EUGENE
IPC: C10B7/00
Filed: 1967-02-01
Abstract: <PICT:1122712/C4-C5/1> A sintering machine (see Divisions F3-F4] having a circular travelling grate formed of pallets 103 in water sealed relationship with an upper hood 9 and a lower windbox 71 is used for the recovery of oil from shale.  In one section of the machine, hot gases fed downwardly through the charge on the pallets carries off the oil as a mist or fog which is removed by a cyclone separator 109.  The cooled gases then pass upwardly through the treated shale to reheat them ready for re-use.  Part of the combustibles may be burnt to assist in reheating the recycled gases. Other embodiments are directed to coking green pellets.
Patent GB-987498-A (GB)
Title: Preparation of carbon black
IPC: C09C1/50
Filed: 1962-02-08
Abstract: Carbon black of controlled modulus is prepared by thermally decomposing a fluid hydrocarbon in a reaction chamber, into which at least 0.001% of Ca and/or Sr as an element or compound is continually introduced in a modulus control agent, and recovering carbon black of preselected modulus from the products of the reaction.  The heat of decomposition comes from combustion of a portion of the hydrocarbon which may be:-methane, butane, pentane, gas oils, kerosene, gasoline, boiling range hydrocarbons, heavy and light naphthas, residual and cycle oils or natural gas or from a second hydrocarbon.  The combustion supporting gas may be air, oxygen, or oxygen enriched air. The metal may be added as an inorganic compound, e.g. borate, carbonate, sulphate, silico fluoride, halide or as the salt of an organic carboxylic acid in amount 0.05-0.15% by weight, alone or in combination with one of the reactants.  Compounds specified are CaCl2, SrCl2, CaF2.  In an example a 15% solution of CaCl2 was introduced with the feedstock axially into the reactor maintained at about 2600 DEG  F., and the carbon black compounded with: SBR-1500, a petroleum hydrocarbon softener, ZnO, sulphur, stearic acid, mercaptobenzothiazole and diphenylguanidine and cured at 293 DEG  F.
Patent GB-621345-A (GB)
Title: Improved pocket lighter
IPC: F23Q2/08
Filed: 1947-02-20
Abstract: 621,345. Pocket igniters. BARTLETT, G. R. Feb. 20, 1947, No. 4935. [Class 75(iii)] A frictional pocket igniter, of the type wherein the flint wheel is actuated when a spring-urged wick cover 6 is released by pressing a catch 5, is provided with a safety catch device comprising a cam 1 which consists of a flat plate pivotally mounted on the wick tube 2 and having attached to, or integral with, it a fingeractuated arm 4 projecting towards, and housed in a recess in, one side of the lighter 8, a lobe 3 on the plate being engageable with the catch 5 to prevent actuation thereof. The catch 5 is slotted at 7 to accommodate the wick tube 2.
Patent GB-419786-A (GB)
Title: Improvements in pistons
IPC: F02F3/02
Filed: 1934-02-15
Abstract: 419,786. Pistons. C. M. D. ENGINEERING CO., Ltd., Wharf Street, and BLUNT, A. W., 62, Emscote Road, both in Warwick. Feb. 15, 1934, No. 4976. [Class 122 (i).] In a piston in which the minimum thrust face is provided with a T-slot b, c additional vertical or inclined slots a extend from the ends of the slot b.
Patent GB-984718-A (GB)
Title: Improvements in or relating to fishing lures
IPC: A01K85/12
Filed: 1962-02-09
Abstract: 984,718. Fishing lures. G. MORRIS. Feb. 7, 1963 [Feb. 9, 1962], No. 4995/62. Heading A1A. A spinning bait comprises a body portion 10, and two resilient fins 12, 14 which can be twisted about their roots and held in inclined positions by side projections 16, 18, 20 and 22 on the body. In the untwisted position each fin lies between two projections. To reverse the direction of spin the positions of the fins relative to their respective projections are reversed. The body and fins are made as a single moulding in plastics material. In a modification the body is made of metal and the plastic fins are detachably secured in a slot therein.
Patent GB-452044-A (GB)
Title: Process for the manufacture of sulphene amides
IPC: C07D277/70
Filed: 1935-02-16
Abstract: Sulphene amides, i.e. compounds containing the group ­C--S--N=, are obtained by oxidizing a compound containing the --SH group (or the corresponding disulphide) in the presence of a secondary amine containing only one nitrogen atom.  Specified compounds containing the --SH group are mercaptans, mercaptoarylene - thiazoles, -imidazoles and -oxazoles, dithiocarbamic acids and their salts, and substitution products of any of these.  Specified amines are dimethylamine, diethylamine, diethanolamine, dibutylamine, methylethylamine, ethylcyclohexylamine, piperidine and its substitution products, and morpholine, thiomorpholine, methylbenzylamine, dibenzylamine, methylnaphthylamines and substitution products thereof.  Specified oxidizing agents and halogens, alkali hypohalogenites, sodium ferricyanide, and hydrogen peroxide or its derivatives.  The reaction may be effected at atmospheric or raised temperature in an aqueous alkaline medium in the presence or absence of an organic solvent.  The proportion of amine to mercapto compound is at least equimolecular, and when disulphides are taken at least two molecular proportions of amine are required.  Examples are given in which (1) 2-mercaptobenzothiazole and piperidine yield benzothiazyl-2-sulphenepiperidide; (2) the same product is obtained from dibenzothiazyl disulphide and piperidine; (3) 2-mercaptobenzothiazole and diethylamine yield benzothiazyl-2-sulphenethylamide; (4) tetraethylthiuram disulphide and diethylamine yield a sulphene amide of the formula Et2-NC(S)SNEt2; (5) 2-mercaptobenzimidazole and piperidine yield benzimidazyl-2-sulphenepiperidide; (7) 2-mercaptonaphthoxazole and piperidine yield a sulphene amide of unspecified constitution; (8) 2-mercaptobenzothiazole and dibutylamine yield benzothiazyl-2-sulphenedibutylamide; (9) 2-mercaptobenzothiazole and ethylcyclohexylamine yield benzothiazyl-2-sulphenethylcyclohexylamide; (10) 2-mercaptobenzothiazole and methylbenzylamine yield benzothiazyl - 2 - sulphenemethylbenzylamide; (11) 2 : 2<1>-diaminodiphenyldisulphide and piperidine yield 2-aminophenylsulphenepiperidide.
Patent GB-862433-A (GB)
Title: Improvements relating to fluid shock-absorbers for vehicles
IPC: F16F9/512
Filed: 1959-02-13
Abstract: 862,433. Hydraulic shock absorbers. NALLINGER, F. Feb. 13, 1959 [Feb. 14, 1958], No. 5148/59. Class 108(3). A valve 26 interposed in a flow connection between opposite sides of a shock absorber piston 14 is biased to an open position by a spring 30. Above a vehicle speed of 30 km. per hour liquid pressure is applied to the right hand end of the valve from a conduit 28 to displace it progressively into positions in which increasing degrees of resistance are applied to the liquid flow. The conduit 28 is connected to a pump 37 of an automatic gearbox, such as that described in Specification 740,985. The output pressure of the pump 37 is controlled by a governor 36 comprising four balls 41 which are inwardly pressed by respective springs 42 against liquid pressure in chambers 40. Each of the latter is connected to a respective annular groove 44 in a shaft 38 driven in accordance with engine speed. Each groove 44 is connected to slots 45 controlled by a piston 46. The slot corresponding to a first groove 44 is uncovered by the piston 46 at low vehicle speeds and this permits the groove 44 to be connected to the conduit 28. At a determined vehicle speed and under centrifugal force, the ball 41 in a first chamber 40 is forced outwards to block the outflow from this chamber. The pressure in the latter thus rises to a predetermined extent and'this correspondingly increases pressure in the conduit 28 and lifts the piston 46 to free the next slot 45. With a further pre-determined increase in vehicle speed a second ball 41 is forced outwards and so on. The valve 26 has a transverse bore 48 of large diameter which at the low vehicle speed position of the valve is astride ports 49, 50, connected to respective sides of the piston. 'At vehicle speeds corresponding to successive balls 41 being displaced, successively smaller diameter bores 48 are brought into position to connect the ports 49, 50. In Fig. 2 the bores 48 and ports 49, 50 are replaced by an annular channel 29 and a channel 33 which are so proportioned in axial length to result in a progressive change in damping action.
Patent GB-564854-A (GB)
Title: Process for manufacturing stable solutions of glucosides of the flavon group and of their aglucones
Filed: 1943-03-31
Abstract: Stable solutions of flavon glucosides or of their aglycones are prepared by using as the solvent an aqueous solution of sarcosine anhydride.  In examples: (1) Quercitrin is shaken with a 30 per cent aqueous solution of sarcosin anhydride to give a solution containing 1.4 to 1.5 per cent of quercitrin.  (2) Neohesperidin is shaken with a 20 per cent solution of sarcosin anhydride to give a product containing 2 per cent of neohesperidin.  (3) Hesperetin is similarly treated and a 0.6 to 0.7 per cent solution obtained.
Patent GB-427215-A (GB)
Title: Improvements in and relating to document cases and the like
IPC: A45C3/02
Filed: 1934-02-16
Abstract: 427,215. Filing papers. NEVILLE, G. H., and HARDING, G. A. C., 79, Turnmill Street, Clerkenwell, London. Feb. 16, 1934, No. 5217. [Class 146 (i)] [See also Group XVII] A document case is provided internally with a concertina or expanding file g, f, and the sides j of the case are split from top to bottom and provided with sliding-clasp or similar quickly-operable fasteners k. A closing-flap a secured by straps or a lock d is provided. The concertina file may be of a known type, or may comprise transverse sheets g secured to pleated side members f, and is united to the case at h. The sheets g may be lettered or carry other indicia.
Patent GB-180034-A (GB)
Title: Improvements in or relating to containers for cigarettes, matches or the like
IPC: A24F15/12
Filed: 1921-02-15
Abstract: 180,034. Miller,' D. N., and Beck & Inchbold, Ltd. Feb. 15, 1921. Cases made from special blanks.-A case for cigarettes, matches, &c. is formed from a blank shaped and scored as shown in Fig. 1. The blank is first folded to form a long rectangular tube the wider flaps 5 overlapping the flaps 6; the ends of this tube are then caused to bend upwardly to form two pockets, Fig. 6, the webs or hinge pieces connecting the two sets of flaps 5, 6, bending at their score lines 8, 9, to form the common bottom of the pockets. The web connecting the flaps 5 is preferably cut-away so that the two webs do not overlap. A cover flap 13 taking into a slit 18 serves to hold the container closed. In the case of a container to hold chocolates, the pockets would be increased in depth to be approximately of square section. The container may be covered to give it an attractive appearance.