baber/WOPTO huggingface dataset:
Patent GB-600710-A (GB)
Title: Improvements in or relating to reflecting radiating systems
IPC: H01Q19/13
Filed: 1944-06-29
Abstract: 600,710. Directive radio systems. SPERRY GYROSCOPE CO., Inc. June 29, 1944, No. 12434. Convention date, May 27, 1943. [Class 40 (vii)] A directional beam of radio waves is produced by a reflector, having a substantially horizontal axis of directivity and mounted with a focus adjacent ground level or a suitable reflecting surface, which is fed in such a manner that reflected components combine to produce a smoothly varying field distribution across the mouth of the reflector. An arrangement, Figs. 1-3, for radiating a pair of overlapping beams to define a glide path, comprises a reflector 11 consisting of vertical walls 18, 19, a horizontal bottom wall 13 flush with the ground, and an arcuate rear wall 14, formed preferably of the upper half of a cylindrical parabola, or which may be of spherical or elliptical form or of stepped construction in approximation of these forms. The directional axis A is substantially at ground level, and a pair of wave-guides 21, 22 are arranged with their open ends adjacent the focal axis F and feed differently-modulated ultra-high-frequency waves into the reflector from source 23. Waveguide 21 is substantially at ground level, while wave-guide 22 is displaced vertically with respect thereto and the result of the directly reflected and ground reflected waves is to produce such field distributions across the aperture of the reflector that two angularly displaced overlapping beams, corresponding to the two wave-guide feeds, are radiated, as illustrated in Fig. 5 (not shown). The tilt of the beams may be varied by vertical or horizontal movement of the wave-guides, but the axial displacement is preferably such that the energy is discharged near the focus F. A wire mesh reflector 20 may be employed on the ground in front of the reflector 11 and may support the wave-guide ends. In a modification, Fig. 7 (not shown), control of the shapes of the radiated beams is improved by providing directional feeds in the form of flared waveguide mouths which are secured to the vertical side-walls of the reflector 11. In a further modification, Figs. 10-12 (not shown), designed to reduce the interception of the reflected waves by the wave-guide feeds, the wave-guides extend through the vertical side walls of the reflector into passages formed between these walls and internal partition walls, the front ends of the passages being closed so that the energy is directed on to the reflector and is reflected outwardly through the space between the internal partitions. As an alternative to wave-guide feeds, the reflector may be energized by dipoles or other wire radiating systems, Figs. 13 and 14 (not shown). Specification 402,834 is referred to.
Patent GB-310284-A (GB)
Title: Improvements in and relating to apparatus for the electrical reproduction of sound
IPC: H04R1/16
Filed: 1929-04-22
Abstract: 310,284. British Thomson-Houston Co., Ltd., (Assignees of Kendall, J. M.). April 21, 1928, [Convention date]. Gramophone pick-ups; magnetic instruments. -In a sound-reproducer, such as a gramophone pick - up, the vibrating armature is at one end mechanicallv coupled to a resilient member subjected to substantially no compressive and frictional force. The armature is preferably pivoted near its other end between two pole-pieces, and surrounded by a low impedance coil. The armature 18, Fig. 2, is flattened at its upper end and provided with a pivot 19, surrounded by resilient bushings 20 clamped between the lower extensions 16, 17 of the pole pieces 11, 12 of the permanent magnet 10. At its lower end the armature may carry a stylus clamped by screw 21, while the upper flattened portion engages a notch in a resilient block 24 of rubber or the like, resting on ledges 40 at the top of the polepiece extensions 14, 15 and clamped thereto by an adjustable plate 25 and screws 26. The armature moves freely through a small distance compared with the dimensions of the resilient block 24 in the direction of travel. A coil 13, of low impedance, placed between the upper and lower extensions of the pole-pieces, surrounds the armature and is connected through a lowresistance volume control potentiometer, Fig. 3 (not shown) and step-up transformer to the output terminals. The armature has a low moment of inertia. Specifications 260,148 and 300,115 are referred to.
Patent GB-325430-A (GB)
Title: Improvements in collar studs
IPC: A44B3/04
Filed: 1929-04-22
Abstract: 325,430. Denton, W. L. April 22, 1929. No Patent granted (Sealing fee not paid). Studs; sleeve-links. -The head 11 of a collar stud or studlike cuff link is pivoted to a rod 6 by a pin 8 and to a sleeve 12 by a lug 13, both the rod and the sleeve being slidable in the shank 7. The lower end of the rod 6 is pivoted to a leverage - multiplying device inside the base of the stud, said device comprising two spring fingers 4, 5 secured at diametrically opposite points to the periphery of the base and adapted to be operated by a relatively movable part 3 of the base for the purpose of tilting the head. The Provisional Specification refers to a construction in which the head comprises two symmetrical members pivoted together so that when the rod is pushed up these two members are folded into an inverted-V form.
Patent GB-201637-A (GB)
Title: An improved rail chair or bearing plate for railway permanent way
IPC: E01B13/02
Filed: 1923-05-03
Abstract: 201,637. Joyce, H. W., Williams, O. R., and Williams, Ltd., H. May 3. 1922. Chair-plates; chairs, securing to sleepers; chairs. - In a chairplate a for flange rails, the rail seating c is flat and divided and relatively short compared with the width of the chair or its sleeper. The cast, forged, or rolled chairs are milled or shaped so that the seating c is about one-third the width of the chairs, the ends being inclined. The chairs are secured by four fastenings, two of which secure the rail and are supported by a projection g, rib, or continuous flange formed on or secured to the chair. In an alternative form, the chairs may have depressions or holes near the spike holes receiving projecting metal pieces which are pressed or riveted in place,. and in the latter case the depressions may be omitted. The projection may be formed by the head of a rivet secured to the chair.
Patent GB-804419-A (GB)
Title: Ductile chromium and process for preparing same
IPC: C22B34/32
Filed: 1957-04-16
Abstract: A chromium dihalide, e.g. the dichloride, is prepared in an intermediate stage in the production of chromium metal (see Group II) by reducing chromium trihalide with hydrogen in the presence of a molten carrier salt formed of one or more of the alkali metal halides and alkaline earth metal halides.  The reduction is carried out in a corrosion resistant reaction vessel, the vessel and molten salt mixture being first purged with chlorine containing carbon tetrachloride to chlorinate any oxide which may be present.  The purge gas is removed by passing in argon or hydrochloric acid and then reduction is carried out using 1 to 10 stoichiometric amounts of hydrogen at a temperature in the range 700-850 DEG  C.  Reduction may take place until a small amount of metal is produced, thus ensuring complete reduction of the trihalide and fixing of any oxide impurity present by reaction with metallic chromium.  Chromium trichloride may form 10-60, preferably 20-30, per cent of the initial halide mixture.ALSO:Ductile chromium powder in free-flowing crystalline form exhibiting a dendritic crystal structure is produced by reacting a chromium trihalide, preferably the trichloride, in the presence of an alkali metal halide or an alkaline earth metal halide or mixtures thereof, with hydrogen to convert all the trihalide to dihalide, the reaction temperature being above the melting point but below the boiling point of the halide composition, then adding at least a stoichiometric amount of a reducing metal such as magnesium or sodium while agitating the mixture and separating the chromium produced from the mixture.  The initial salt mixture is preferably melted in a graphite lined vessel which is then purged with a chlorinating gas such as a mixture of chlorine and carbon tetrachloride.  Hydrogen reduction is then carried on at a temperature in the range of 700-850 DEG C. until a small amount of chromium is produced and the molten mixture is passed, through a filter, to a stainless steel vessel previously purged with hydrogen in which reduction is effected with 1-10 stoichiometric amounts of reducing metal at a temperature in the range 700-850 DEG C.  The chromium powder can be freed from by-product salt by treatment with successive amounts of dilute nitric acid.
Patent GB-514072-A (GB)
Title: Improvements in brake operating means for vehicles
IPC: B60T11/04
Filed: 1938-04-27
Abstract: 514,072. Brake operating-mechanism. MARTINDALE, A. F. April 27, 1938, No. 12602. [Class 103 (i)] To prevent interference with the operation of vehicle brakes by axle movements and to prevent movement of the axle by the brake applying force, a force-distributing lever of T-form for a pair of brakes is mounted on a radius rod which is articulated at one end to the chassis for movement in a vertical plane and connected at the other end to the axle in such a manner that fore and aft and twisting movements of the axle are not substantially transmitted to the radius rod or distributer, the brake operating control being so arranged that the reaction thereof is transmitted to the radius rod as a compression stress and the distributer being capable of movement toward either of the brakes to balance the forces applied to them. A radius rod D has a universal joint connection at D 1 to a cross member B 4 of the chassis and at the other end is suspended from the axle casing B by a link D which is capable of universal movement at both ends under the restraint of rubber blocks D<6>. The force-distributer of T-form comprises a sleeve-member C turning about a pin C<1>on the rod D and having arms C<2> connected to the two wheel-brakes and an arm C<3> connected by a pull-rod F to an arm F<1> on a cross-shaft F<2> mounted on the chassis members A, B<4>. The shaft F<2> is connected by a rod F<4> to the driver's control. The rod F lies in the same horizontal plane as the rod D and its pivotal connection to the arm F<1> is close to the articulation D<1> of the rod D so that movements of the rod F with the rod D will not affect the brakes. The end of the arm C<3> is in the same horizontal plane as the rod D so that the pull on the rod F will react as a compression stress on the rod D. The articulations of the rod D and F at D<1>, F<1> are slightly in front of the front ends of the half-elliptic axle springs B\ at points on the axis of vertical movement of the axle. Movement of the distributor C to balance the forces applied to the end brakes is provided by the freedom for lateral movement of the adjacent end of the rod D. The link D<2> may be replaced by a pair of parallel links extending between transverse bolts passing through rubber blocks secured in the end of the rod D and in a bracket on the axle casing B or by a rubber or canvas strip and the freedom of lateral movement of the distributer may be obtained by enabling it to-rock about the axis of the rod D or according to the Provisional Specification by allowing the rod to twist.
Patent GB-580336-A (GB)
Title: Improvements in or relating to holders for coiled hose and the like
IPC: A62C35/20
Filed: 1944-07-03
Abstract: 580,336. Hose reels. NATIONAL FIRE PROTECTION CO., Ltd., and HEDGES, N. A. J. July 3, 1944, No. 12607. [Class 99(ii)] In a reel for hose pipes suitable also for flexible fire escapes, ropes or ladders, ties normally retain the coiled hose &c. but have an automatic quick release which operates when the end of the hose is drawn away from the reel. The ties comprise flexible material C, C<1>, C<2> at least 2 of which have a -spring C<4> in their length and are connected to a ring D, the springs being prevented from chafing the hose by flexible strips C'. The other tie C' has a pin D<1> which passes through the ring but is connected by a strap, chain or thong to the nozzle B<1> so as to be released when the nozzle is removed. The reel on which the hose is wound comprises metal rings A supported on transverse strips A<1> but having no side flanges.
Patent GB-1029226-A (GB)
Title: Water-insoluble monoazo dyestuffs and process for their manufacture
IPC: H01F41/24
Filed: 1964-03-25
Abstract: The invention comprises water-insoluble monoazo dyes of formula <FORM:1029226/C4-C5/1> wherein A is a benzene residue, R1 is a hydrogen atom or an alkyl or alkoxy group, R2 is a cyanoalkoxyalkyl group, R3 is an alkoxycarbonylalkyl or cyanoalkyl group and X is an aliphatic acylamino group.  The dyes are prepared by coupling a diazotized aminobenzene with an appropriate N,N-disubstituted-3-acylamine-anilino (see Division C2).  The dyes may be used to colour synthetic fibres, particularly polyester fibres, in orange to violet shades.ALSO:3 - Acetylamino - N - (b  - cyanoethoxyethyl)  N-b  -cyanoethylaniline is prepared by heating 3-aminoacetanilide with chloroethyl cyanoethyl ether in alkaline medium and subsequently treating the monoalkylation product with acrylonitrile in an autoclave.
Patent GB-708163-A (GB)
Title: Improvements in or relating to open-air silage installations
IPC: A01F25/16
Filed: 1952-05-19
Abstract: 708,163. Silage. FRIGIERI, A. G., and FRIGIERI, U. L. May 19, 1952 [May 18, 1951], No. 12650/52. Class 5 (1) Silage material within a ring B is compressed by rollers 7, 14, 15, the ring and the rollers, together with an actuating motor 7a, being supported by lattice work from a cross girder 3 mounted on a central column A stayed by chains 1a. The roller 7 driven through gearing from the motor 7a, is conical and compresses the periphery of the enclosed material, and the central accumulator is pressed down by rollers 15 on a framework 16, 17, 18. As the roller 7 moves it rises carrying with it the ring B and supporting girder 3, and leaving a smooth compressed edge of the exposed lower part beneath the ring. A share E with a blade 19 moving in advance of the roller 7 turns inwardly any material protruding beyond the periphery. The ring B is made of a number, which may vary according to the diameter, of elements detachably connected together by fasteners 2.
Patent GB-720078-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01B5/12
Filed: 1950-04-11
Abstract: 720,078. Agricultural ploughs. FERGUSON, H. Inc. April 11, 1950. [April 11, 1949] No. 12711/53. Divided out of 8783/50. Class 6 (1). A plough interconvertible for ploughing two or three furrows comprises a tubular longitudinal beam 21 carrying a first plough-element 48 adjacent to its front end and offset laterally  to one side, a second plough-element 48 adjacent to the rear end of the beam and a detachable tail-piece 22 carrying a third element 48 and offset to the opposite side of the beam so that all three elements lie in a diagonal line. The plough-elements may be discs, as shown, or fixed bodies. The beam carries brackets 30, 32 for attachment to power-operated draught-links on a tractor. The two forward ploughs are mounted in bearings adjustably carried by downwardly-extending legs 36, 37 on the beam 21. The mounting includes a plate 38 on which the bearing is both vertically and horizontally adjustable. A similar plate 38 is carried by the tail 22 and to it is attached an arm 53 carrying a tail-wheel 50, the tail-wheel being spring- loaded downwardly and being inclined to the line of draught to counteract the action of the ploughs. The tail-piece 22 has a reduced portion nesting in the tube 21 and secured there by bolts 25. With the tail-piece removed, the hole is closed by a rounded cap. The discs and tailwheel are cleaned by fixed scrapers 49A, 58A.
Patent GB-495038-A (GB)
Title: Improvements in or relating to pulverised fuel firing systems
IPC: F23K1/00
Filed: 1937-05-05
Abstract: 495,038. Pulverized - fuel mills. HOBBS, J. C. May 5, 1937, No. 12834. Convention date, May 14, 1936. [Class 59] [Also in Groups XII and XIII] In a pulverized-fuel furnace 10 secondary air is supplied to the burners 12 by a fan 38 and primary air is supplied by fans 46, 48 to pulverizers 100, 102, 104 and thence to the burners 12 through pipes 150, 152, 154. The primary and secondary air are separately heated by waste gases in heating apparatus divided by a partition 30. Secondary air supplied by the fan 38 passes over the heater to the left of the partition 30 and through the pipe 40 to the furnace. The fans 46, 48 draw air from the delivery of the fan 38 through a pipe 50 and discharge it at a higher pressure than the secondary air through a manifold 82 to the air heater to the right of the partition 30 and thence through a pipe 122 to the pulverizers. A byepass pipe 106 may supply cold air to the pulverizers by way of the manifold 108 and valve controlled conduits 110 112, 114 and the temperature of the air supplied to the pulverizers may thus be regulated. The fans 46, 48 may draw air direct from the atmosphere through valve controlled inlets 70, 72. Counterweighted valves are provided on the outlets of the fans 46, 48 and a valve 120 controlled by boiler pressure is arranged at the outlet of the manifold 82. The quantity of waste gases passing through the primary air heater may be controlled by a valve 36.
Patent GB-773682-A (GB)
Title: Device for dredging ditches and dykes, and for like operations
IPC: E02F5/02
Filed: 1954-10-29
Abstract: 773,682. Ditch - cleaning apparatus. BROWN, A., MARTIN, C. S., SWALES, J., and BECFABS (ENGINEERS), Ltd. Oct. 26, 1955 [Oct. 29, 1954], No. 12850/56. Divided out of 773,681. Class 68 (1). In a ditch-cleaning apparatus having a jib 1 pivotally mounted on a tractor T the scoop 36 is adjustably supported from the jib by two arms 26, 27. The arm 26 is pivotally connected at 25 to the jib 1 and the arm 27 is pivotally mounted on a pin 29 passing through one of the pairs of aligned holes 31 in bars 30 secured to the jib 1. The scoop 36 is secured by pivots 28 to the arms 26, 27. The means controlling movement of the jib with respect to the tractor and of the scoop about pivots 28 forms the subject matter of Specification 773,681, which is referred to.
Patent GB-1497932-A (GB)
Title: Method for the manufacture of an extruded catalyst and the use thereof
IPC: C10G45/04
Filed: 1975-03-27
Abstract: 1497932 Aluminium oxide UOP Inc 27 March 1975 [29 March 1974] 12851/75 Heading C1A [Also in Division B1] Extruded catalyst particles of increased macropore volume are made by (i) blending a powdered refractory inorganic oxide with a binder-lubricant: (ii) adding a peptizing agent and a water-soluble surfactant to the blend; (iii) extruding the resulting dough; and (iv) drying and calcining the extruded product. Alumina, especially alpha-alumina monohydrate, is the preferred refractory inorganic oxide; others mentioned include silica, zirconia, thoria and boria, as well as composites thereof, e.g. alumina-silica and alumina-zirconia. Specified binder-lubricants include starch, polyvinyl alcohol, methyl cellulose, graphite and micro-polyethylene; 0À01 to 5% may be used, based on the weight of oxide. Peptizing agents mentioned include water and weak organic acids, e.g. formic, acetic and propionic; anionic, cationic and non-ionic surfactants may be used, suitably in a proportion of 0ÀI to 10% based on the weight of oxide. The dough may also contain a crystalline aluminosilicate and a hydrorefining catalytic component or its precursor, especially a Group VIb or Group VIII metal, e.g. molybdenum or nickel. Calcination may be effected at 350‹ to 850‹ C. In the example, a powdered alpha-alumina monohydrate is blended with methyl cellulose, water, and a linear primary alcohol polyether surfactant. The mixture is mulled and extruded, dried and calcined at 650‹ C. to obtain extruded catalyst particles of 1/32 to 1/8 inch diameter of average pore diameter 130Š.
Patent GB-1044259-A (GB)
Title: Automatically acting regulating apparatus in roller mills
Inventor: WEIGELT WILHELM
IPC: B02C4/32
Filed: 1964-03-26
Abstract: 1,044,259. Fluid-pressure servomotor systems. MASCHINEN-UND MUHLENBAU WITTENBERG VEB. March 26, 1964, No. 12852/64. Heading G3P. [Also in Division B2] A roller mill includes an automatic regulating apparatus comprising two tripping elements 3, 33 responsive to stock level in a feed pipe 2, which operate two manually and independently adjustable elements controlling respectively a flap valve 19 in the feed pipe and the gap between the grinding rollers 29, 40 respectively, so that adjustment of two open positions of the valve and two grinding positions of the rollers can be effected in response to the changes of stock level, and, if no stock is present in the pipe, the valve 19 is shut, feed rollers 42, 43 are stopped and the guiding rollers are moved apart to a third, wide-open, non-grinding position. In operation, with stock at a level 1, the lower switch 3 is closed and actuates a valve 5 which moves to the left so that pressure fluid moves a piston 10 to the right against a stop 12, whose position is adjusted via a piston 13 by a handwheel 15. A driver 18 secured to the piston rod 17 of the piston 10 raises the feed flap 19 to its first open position. When the pressure sides of cylinders 20, 21 have filled with fluid, two further pistons 23, 22 are urged to the right and the grinding roller 29 is moved to its first grinding position, via a lingage 24... 28. The size of grinding gap is determined by the extreme right-hand position of the piston 22 as adjusted by a handwheel 30. When the stock rises to a level 32, the switch 33 is closed, a valve 35 moves to the left, so that the piston 22 is relieved and forced by a spring 36 against the inner spindle 39 adjustable on the piston rod 38 by a handwheel 37, and the grinding roller 29 is moved to its second, more open grinding position. The piston 23 is maintained in its right-hand position under pressure via a throttle 41. Simultaneously with the opening of the rollers 29, 40 the pressure medium forces the piston 10 to the left and drives the feed flap to its most open position, which is determined by adjustment of a set screw 44. In the absence of stock, both switches 3, 33 remain open, the valves 5, 35 are moved to the right by springs 45, and pistons 22, 23 are moved to the left by the spring 36, and the grinding roller 29 is moved to its extreme open position. The piston 13 is relieved of pressure and thus the spring 48 moves the flap valve 19 to its closed position against a stop 47 and the pistons 10 and 13 are moved to the right. At the same time the feed rollers 42, 43 are stopped. The apparatus may alternatively be operated electro-pneumatically or mechanic ally.
Patent GB-116621-A (GB)
Title: Improvements in or relating to Theatrical and like Scenic Appliances.
Inventor: KELSEY BERYL FORT
IPC: A63J5/02
Filed: 1917-09-08
Abstract: 116,621. Kelsey, B. F., (Buckle, G. F.). Sept. 8, 1917. Theatrical appliances.-Relates to a stage property consisting of a model candle of very large size. Fig. 2 represents a sectional view of the appliance from behind. The candle A consists of a hollow cylinder carrying a wick D provided with flame-coloured streamers which are kept extended by a current of air generated by a fan G. Electric lamps L for illuminating the streamers may be provided. The candle is mounted in a representation of a candlestick B having an annular platform B<1> and access to the platform and top A<1> of the candle may be obtained by steps K, K<1>, J concealed from view by imitation guttering' H. A performer falling on the flame may give the effect of extinguishing it by operating a slide M connected to a switch for cutting off the light. The various parts may be detachably connected to facilitate transport.