baber/WOPTO huggingface dataset:
Patent GB-693993-A (GB)
Title: Improvements in or relating to a variable wave guide structure
Inventor: ALLEBACH KARL A
IPC: H01Q3/32
Filed: 1951-01-18
Abstract: 693,993. Wave-guides. GILFILLAN BROS., Inc. Jan. 18, 1951, No. 1392/51. Class 40 (viii) [Also in Group XL (c)] A variable wave-guide structure arranged to feed a series of dipoles 25 includes an elongated stationary member 10 and an elongated movable member 11 which co-operate to form a space 10A, 10B, 11A, 11B whosec ross-section is variable to change the phase at which the dipoles are fed and hence to produce a change in direction of the radiation. The L-shaped variable member 11 and flange 18 with which it co-operates to form the waveguide have A/4 chokes 11D, 18A. The member 11 is supported on bridge-pieces 40 by means of hardened tracks 45 co-operating with rollers 42 on the bridges 40. The bridges 40 are removably mounted by screws on flanges 31, 32, shims being interposed between the bridges and the flanges to adjust the height of the member 11 and hence the width of the gaps 20,21. The member 11 is reciprocated towards and away from the flange 18 by links 80, 81 actuated by a reciprocating rod 71. The rod is itself reciprocated by a crank 72 and adjustable crank-rod 73. The bifurcated ends of the links 81 are mounted on sections 32A of the flange 32, the flange being slit at 32B to allow the horizontal setting of the sections 32A and hence of the member 11 to be adjusted by means of set-screws 111. Vibration of the flange sections 32A is prevented by locking-screws 32D. In order to assure movement of the member 11 only in the direction indicated by the arrows in Fig. 13, the member carries a guide-block 61 which co-operates with rollers 67, 68 mounted on a bridge-piece 63. The dipole spacing is approximately #/2 and alternate dipoles 25 are reversed to suppress unwanted lobes. Energy unabsorbed by the dipoles is dissipated by an absorber unit (not shown) at the end of the wave-guide.
Patent GB-1413874-A (GB)
Title: Process for hydrotreating high nitrogen feedstocks and  a catalyst for use therein
IPC: B01J21/12
Filed: 1973-01-10
Abstract: 1413874 Hydrocracking catalyst ATLANTIC RICHFIELD CO 10 Jan 1973 1406/73 Heading BIE [Also in Division C5] A hydrocracking catalyst comprises (a) a major amount of a support derived by the calcination of a material comprising 30 to 70% wt of silica and 30 to 70% wt alumina, the silica and alumina being supplied by a mixture of 40 to 90% wt of amorphous silicaalumina and 10 to 60% wt of a hydrous alumina which is boehmite or amorphous hydrous alumina or a mixture thereof, and (b) a minor amount of a catalytic agent which is at least metal component wherein the metal is a Group VIb metal. a Gp. VIII metal or a mixture thereof. Specified metals are Mo. W and mixtures thereof present in an amount from 10 to 30% wt, Ni or Co and mixtures thereof present in an amount from 2 to 15% wt, or a platinum group metal present in an amount of 0.1 to 2% wt. The metal component may be present as metal, oxide or sulphide. In the Examples, the catalysts contain Ni and W or Ni and Mo. The catalysts are sulphided before use.
Patent GB-972508-A (GB)
Title: Commingling slowly flowing liquids
IPC: G01N1/28
Filed: 1962-01-15
Abstract: 972,508. Mixing liquids in flow. HAGAN CONTROLS Ltd. Jan. 15, 1962 [Jan. 16, 1961], No. 1425/62. Heading B1C. In an apparatus for adding a liquid reagent to a liquid flowing slowly in a tube 1, as in colorimetric analysis, the reagent is introduced at 10 by a tube 3 of less diameter than the tube 1 and projecting into and preferably to the centre of, its bore. There is at least one chamber as at 4, 7 downstream of the point 10 having a diameter from 1À5 to 4 (and preferably 3) times the diameter of the tube 1; the pressure drop in the chamber causes turbulence which promotes mixing. The tube 1 may have a diameter from <1>/32 to <3>/8 (preferably <1>/16) inch and the diameter of the tube 3 may be <1>/4 to <SP>3>/4 (preferably <1>/2) the diameter of the tube 1. Specification 963,488 is referred to.
Patent GB-694061-A (GB)
Title: Improvements in, and relating to, a horizontal chamber coke oven, in particular a regenerative compound coke oven
IPC: C10B5/12
Filed: 1951-01-19
Abstract: 694,061. Coke ovens. COLLIN AKT.-GES., F. J. Jan. 19, 1951 [Jan 23, 1950], No. 1507/51. Class 51(ii) In a regenerative compound coke oven of the Coppee type, interchangeable nozzles 6 having a venturi flow section are disposed in the ports leading from sole channels 3 to regenerators 2 and openings 10 closable by a cover 11 are provided in the floor of the sole channels vertically below said nozzles to receive the same as they are removed. The nozzles 6 are made of refractory material or cast iron or other heat resisting metal and are formed with projections 7 engaging recesses 8 in the oven brickwork. In a modification Fig. 5 the nozzle is seated in a cast iron holder 12 keyed to the surrounding brickwork. The cross-sectional area of the mouths of the nozzles and the position of the venturi may be mutually varied Figs. 6-10 (not shown) and the nozzles may be so arranged that the area of the mouths in the sole channel 3 vary from a maximum at the entrance thereto to a minimum at the inner end, where two narrowing sole channels run towards a partition in the middle of the oven, the area of the mouths in the regenerators 2 being arranged oppositely.
Patent GB-247538-A (GB)
Title: Improvements in or relating to high frequency radio transmission systems
IPC: H04L27/04
Filed: 1926-01-19
Abstract: 247,538. Lorenz Akt.-Ges., C. Feb. 13, 1925, [Convention date]. Keying in magnetic modulating systems.- For equalizing the load on an arc or other generator G during the operation of the key T, a resistance W is shunted across the choke D, in the circuit which completes the generator G to the aerial through the transformer L. When the key is depressed the cores of the chokes D1, D2, become saturated and transmission takes place, but when the key is raised, the chokes are effective, the choke D2 preventing the transmission of signals. In the former case the resistance W is short-circuited, while in the latter it takes current from the generator. By a suitable choice of magnitudes the load on the generator can be kept uniform in the two cases.
Patent GB-1003457-A (GB)
Title: Improvements in or relating to service station pumps for dispensing liquid fuels
IPC: B67D7/30
Filed: 1964-01-14
Abstract: 1,003,457. Coin freed petrol dispensers. SCHEIDT & BACHMANN G.m.b.H. Jan. 14, 1964 [March 5, 1963], No. 1657/64. Heading G4V. The totalizer 7 of a coin-freed petrol pump is selectively connectable to register the value of deposited coins as indicated by the pulsing of contacts 9, 10, 11, or is connected to an attendant control device 12, whereby the totalizer may be set to register demand as indicated by pulsing of contacts 15, 16, 17, the demand being registered in terms of units of value (switch 14 made) or in terms of quantity (switch 13 made). Contacts 4 and 6 associated with the quantity and price indicating wheels of the pump, provide signals which are directed to the totalizer to reduce registered credit as petrol is dispensed.
Patent GB-210613-A (GB)
Title: Improvements in upward current classifiers
IPC: B03B5/06
Filed: 1923-01-19
Abstract: 210,613. Minikin, R. Jan. 19, 1923. Upward - current classifiers. - In a washer of the kind in which an upward current is supplied through a passage 2 below an inclined trough 1, a member having converging sides 8 and rotatable on a shaft 9 is mounted at the upper end of the passage 2 so that the size of the openings 10, 11 can be varied and the part 8<a> presented as a variable obstruction in the trough 1. The heavy material is discharged by means of a vane wheel 13 in association with a baffle 19, the emptied compartments of the wheel being in communication with the water supply through a pipe 17. Baffles 3, 4 are also provided in the passage 2.
Patent GB-1055122-A (GB)
Title: Flow control arrangements for dielectric material flowing along a predetermined path
Inventor: HORST ROBERT LEE
IPC: G05D7/06
Filed: 1964-01-14
Abstract: 1,055,122. Automatic control of mixtures. ARMSTRONG CORK CO. Jan. 14, 1964, No. 1707/64. Heading G3R. [Also in Division G1] In a process for filling a box or a mould 24 with a predetermined mixture of polystyrene balls and aluminium slivers, the rates of flow of a sliver/ball blend 12 and balls 13 are controlled by operating gates 17 and 18 in accordance with the level and dielectric constant of the blend flowing between the plates of a sensing capacitor 20. The sensing capacitor, Fig. 2 (not shown), comprises parallel vertical plates 20a mounted under polystyrene supports 26 and connected alternately to leads 20c, 20d. The leading edge of each plate is parabolically curved and the underside of each plate slopes upward in the direction of flow. The gates 17, 18 are arranged so that raising gate 17 lowers gate 18 and vice versa. A measuring circuit, Fig. 5A or 9A (not shown), includes a resistor Rb in series with the sensing capacitor and the voltage across the resistor Rb (which is representative of the admittance of the sensing capacitor) is compared with an adjustable reference voltage. The output of the measuring circuit is fed to a recorder and control unit, either directly or via a compensation function generator, e.g. Fig. 7 (not shown), if the mould 24 is to be filled with a mixture of varying composition, and the control unit operates the drive for the gates 17 and 18. There is described with reference to Fig. 5B (not shown) a cam operated mechanism which may be set in operation by a microswitch 23 when a mould 24 is full and which automatically checks the calibration and reference voltage and resets the compensation function generator ready for the next mould to be filled. The whole apparatus may be housed in a temperature controlled cabinet.
Patent GB-804211-A (GB)
Title: Improvements relating to apparatus for and methods of measuring the flow rate of powdery and like material
Inventor: DEAN STANLEY KEITH
IPC: G01F1/30
Filed: 1954-01-21
Abstract: 804,211. Weighing apparatus. BRITISH IRON & STEEL RESEARCH ASSOCIATION: Jan. 21, 1955 [Jan. 21, 1954], No. 1829/54. Class 143 [Also in Group XXIX] Apparatus for indicating the rate of mass flow of powder or other divided solid material comprises, as shown, a plate 14 on which the material falls at 17 and a unit 15 for measuring the torque about axis 13 due to impingement of material and the weight of material flowing down the plate, the position of impringement and the angle of the plate being so arranged that for a given rate of flow the torque is substantially independent of the height of fall of the material. Unit 15 may control feed means which maintains a constant mass flow. A unit 16 is provided to damp oscillations. Dimensions a, b and c and the value of angle # are given for an example; the plate 14 is preferably curved as seen in section perpendicular to the plane of the Figure. The Provisional Specification refers to the measuring of flow of coke and iron ore; for the latter it is suggested that a second plate be provided on to which the material falls before sliding on to the plate 14.
Patent GB-178522-A (GB)
Title: Novel or improved apparatus for controlling or directing the rays of light emitted from the headlights of motor road vehicles and other powerful light projectors, for preventing glare or dazzling effect to the eyes
IPC: F21V11/00
Filed: 1921-01-12
Abstract: 178,522. Terry, A. E. Jan. 12, 1921. Lantern gratings.-An anti-dazzle device comprises a grid having several passages of circular or substantially circular cross-section constituted by aggregating a number of short tubes 1, or a number of corrugated strips 5. The tubes 1, which are preferably dull blacked metal, may be held in a steel band 2 provided with a screw clamping-device 3 and a number of spring hooks 4 adapted to be sprung over the lamp front. The device may be provided with arms which engage, and are clipped together at the rear of, the lamp, or it may be hinged to the lamp, or it may be permanently combined with the lamp. The strips 5 may be soldered or riveted together, or may be held in a frame. Dimensions of the tubes are given. The Provisional Specification also states that the tubes may be of square, oval or other cross-section, and may be highly polished inside.
Patent GB-589568-A (GB)
Title: Process for the treatment of n-alkoxymethyl polyamides
IPC: C08G69/50
Filed: 1945-01-24
Abstract: N-Alkoxymethyl polyamides of the kind described in Specification 573,482 are treated with an oxygen-containing acid, preferably one which has an imisation constant for the first hydrogen of between 1 x 10-1 and 1 x 10-4, until the "zero strength temperature" (the measurement of which is described in the Specification) is increased at least 5 DEG  C.  The acid may be organic or inorganic and should be non-volatile over the range 0-300 DEG  C., preferably 50-150 DEG C., employed for the treatment.  The quantity of acid used is 0.01 per cent to 20 per cent of the weight of polyamide, the hardness of the product increasing with increasing quantities of acid.  The examples described the treatment of the following: (1), (2) and (3) N-methoxymethyl polyhexamethylene adipamide and maleic acid; (4) N-methoxymethyl polyhexamethylene adipamide and sebacic acid; (5) as in (3), but using p-toluene sulphonic acid as catalyst; (6) N-ethoxymethyl polyhexamethylene adipamide and phosphoric acid; (7) N-isobutoxymethyl polyhexamethylene adipamide and maleic acid; (8) as in (3), but using formic acid as catalyst; (9) N-methoxymethyl derivative of an interpolyamide prepared from hexamethylene diammonium adipate and hexamethylene diammonium sebacate and citric acid.  Specifications 461,236 and 461,237 also are referred to.
Patent GB-791128-A (GB)
Title: Improvements in or relating to lighting fittings
Inventor: BEGGS STANLEY SUTTON
IPC: F21V3/00
Filed: 1955-01-21
Abstract: 791,128. Lighting fittings. GENERAL ELECTRIC CO.. Ltd. Jan. 12, 1956 [Jan. 21, 1955], No. 1898/55. Class 75(2) In a lighting fitting of the kind including a plane or cylindrical or frusto-conical sheet P of transparent material having on the plane or concave surface presented to a light source S a plurality of substantially parallel rows of prisms extending parallel to and to one side of a plane SX through the light source and arranged to produce by internal reflection within the prisms a deviation towards the plane SX of the light rays from the source, each prism is acute angled and the'entry face AC at each point of the prism length is inclined to the perpendicular t othe sheet at that point at an angle of not less than 10 degrees. The angle preferably lies within 5 degrees of the value derived from the formula ¢(d - 45‹) + 10‹ where d is the deviation of a light ray from the centre of the source passing through the centre of the entry face of the prism and (d- 45‹) is the numerical difference between the deviation and 45‹. The prisms may be arranged in groups, the prisms in any one group all having the same angle of inclination for their entry faces. In a particular embodiment the parallel rows of reflecting prisms are provided near the open end of a vertical bowl surrounding the light source with its closed end downwards, the reflecting prisms being horizontal and arranged to deviate below the horizontal light rays directed upwardly by the source. Annular refracting prisms are formed on the inside of the bowl below the reflecting prisms and the outside surface of the bowl has vertical prisms for directing the light in two opposed or slightly inclined planes. Specification 736,625 is referred to.
Patent GB-543351-A (GB)
Title: Frequency modulation monitor
IPC: G01R29/06
Filed: 1941-02-13
Abstract: 543,351. Wireless systems. FARNSWORTH TELEVISION & RADIO CORPORATION. Feb. 13, 1941, No. 1982. Convention date, Sept. 16, 1940. [Class 40 (v)] A modulation indicator for a transmitter 1 using frequency modulation comprises a cathode ray tube 4 to the horizontally deflecting plates 5 of which is applied the modulation signal through an amplifier 7, while to the vertically deflecting plates 6 is applied the modulated carrier signal through a frequency reducing stage 8. Across the vertically deflecting plates 6 are connected a parallel resonant circuit 9 in series with switch 10 and a number of series resonant circuits 11 each in series with a switch 12. Circuit 9 is tuned to the mid-frequency of the output from 8 while circuits 11 are tuned to frequencies evenly spaced on each side of the mid-frequency to cover the range of frequency variation: The horizontal extent of the cathode ray trace depends on the percentage modulation and amplifier 7 is adjusted so as to cover a scale on the end of the tube 4 at 100 per cent modulation. The vertical trace depends on the carrier amplitude and is constant when switches 10 and 11 are open. When these are closed the trace is accentuated at the mid-frequency due to circuit 9 and is reduced at the test frequencies due to circuits 11. By observing the position of the notches in the trace it can be seen whether the frequency modulation is linear with respect to modulation signal.
Patent GB-561690-A (GB)
Title: Improvements in electrical resistances
IPC: H01C10/38
Filed: 1943-02-06
Abstract: 561,690. Wire resistances. BIRCH, H. A. Feb. 6, 1943, No. 1990. [Class 37] In a resistance in which resistance wire or tape is wound on a straight tubular former which is carried by a supporting bracket at each end, these brackets are formed of moulded insulating material. Fig. 3 shows a variable resistance consisting of a vitreous enamelled metal tube 10 of circular cross - section wound with a pair of parallel connected resistance wires 11, the ends of which are anchored to a bolt 15 passing through a pillar 12 as described 'in Specification 561,689. The former tube 10 is carried by a pair of end supporting brackets 16 moulded from a heat-resisting insulating material. The end of the tube 10 is a close fit against the radially inner wall of an annular channel 17, which is wide enough to allow for expansion of the former. Each end of the former is held in the associated channel 17 by a pair of screws 19, each passing through both walls of the channel and through a hole in the former tube. They are inserted from outside the bracket and are retained by nuts 21 within a central ventilating aperture 18. A slider bar 22 carries a slidable contact 23 of the kind described in Specification 427,038. Each end of the slider bar 22 is screwed into a rectangular brass block 25, which is located in a pocket 26 moulded in the inner face of the bracket, the block 25 being retained by two opposed screws passing through holes in opposite walls of the pocket and engaged in screw-threaded holes in the block 25. These screws also hold a metal cap 29 carrying a terminal 28. A metal socket 30 in the base of each bracket is engaged by a screw holding the bracket to a base. A modification is described in which each end bracket is formed with two annular channels for use with a variable resistance having two parallel formers. A ventilating aperture is provided between the formers for cooling.
Patent GB-369320-A (GB)
Title: Improvements in and relating to see-saws and roundabouts
IPC: A63G11/00
Filed: 1931-01-22
Abstract: 369,320. See-saws; roundabouts. LEVITUS, E., 38, Mnichovice, and SRAMEK, B., 24, Mnichovice, Czecho- Slovakia. Jan. 22, 1931, No. 2179. [Class 132 (i).] A see-saw of the kind comprising a seat 1, Fig. 1, mounted on an arm 2 pivoted at 3 and balanced by a spring 5 has the spring attached to a block 7 sliding on the arms 2 so as to compensate for various weights on the seat 1. In a modification the arm is bent so that the spring acts at an angle of 60‹ or less with the arm and the pivot is below the level of the seat 1. The invention may be applied to roundabouts in which case the carriages F, Figs. 3 and 4, are suspended from the ends of levers e hinged to' a rotating ring d and supported by springs l attached to rotating arins m above the arms e and connected to blocks o sliding on the arms e. The position of the block o may be adjusted by mechanism operated from within the carriage comprising a handle connected to bevel gearing which operates chain wheels mounted on the arms e, the sliding block o being attached to the chains. The carriages may be suspended from rods h by forks i so that they may turn about the axes of the arms e and also about their own axes. They may be trimmed by sliding seats connected by links k. In order to bring the carriages down for embarking a ring u mounted by springs from arms P may be lowered by a lever y to bear against the arms e.
Patent GB-1328956-A (GB)
Title: Rotary target for electrostatic accelerator which operates as a neutron generator
IPC: H05H6/00
Filed: 1971-01-18
Abstract: 1328956 Targets for particle accelerators COMMISSARIAT A L'ENERGIE ATOMIQUE 18 Jan 1971 [20 Jan 1970 24 Sept 1970] 2264/71 Heading H1D A rotary target, e.g. for an electrostatic accelerator, comprises an annular target area 57 positioned to receive a beam of particles 59 and mounted on a rotor 51 which is in turn mounted on a rotatable shaft carried in at least one bearing, a stator surrounding the rotor and forming an end shield behind the target, means being provided for the circulation of a heat transporting fluid in the space between the end shield and the target, the circulation resulting from the centrifugal action of the rotor on the fluid and causing the fluid to pass through a heat exchanger 71, and at least one system of baffles 61, 63 between said rotor and said stator to prevent the fluid from contaminating the vacuum system of the accelerator. A liquid nitrogen trap 67 may be provided to further reduce contamination. The shaft may be mounted in ball bearings or a liquid bearing, in which case the liquid may be the coolant fluid, and the shaft may be driven through a pulley (23), Fig. 1 (not shown), or through magnetic coupling means 55. In Fig. 1 (not shown), the target consists of a hollow frustum of a cone, the target area (9) being on the inner surface of the base and the beam of particles (3) entering through the summit (5) of the frustum. A modified baffle system is illustrated in Fig. 3 (not shown), in which the stator is provided with toroidal cavities (81, 83) which are open towards the face of the rotor remote from the end shield and adjacent the circumference of the rotor, the openings of the cavities being non-coplanar and a corresponding step (61a) being provided in the rotor. The cooling liquid may be water, sodium or mercury. The target may be sheet copper 0À5 mm. to 1 mm. thick.
Patent GB-284080-A (GB)
Title: Improvements in or relating to bakers' trays
IPC: A21B1/00
Filed: 1927-01-26
Abstract: 284,080. Price, C. Jan. 26, 1927. Baking-trays.-A bakers' tray has its side walls A, B extended downwardly to act as runners. In one form, Fig. 3, the side walls A, B overlap the end walls C, D, the joints being covered by pieces G of oak or other hard wood which act as bumpers and are secured by metal clips H and bolts h<1>. The side walls are bevelled at each end a', b' to finish flush with the ends C, D. The tray bottom is formed by longitudinal battens E . which may be bevelled and reduced in width at each end and are secured to the underside of ends C, D. A crossbar J, secured to each batten E, and cracked at each end to enter the side walls A, B above the battens, may be provided, or two crossbars spaced apart below the battens and cranked or let into grooves in the battens may be used. In another form, Fig. 4, the battens E are secured by screws M to flanges K on the ends C, D, and a strip N, terminating at each side short of bolts h<1>, is attached above. In a further form, Fig. 6, the ends C, D have grooves P with slots Q in which the ends of the battens E are inserted, no screws &c. being used. The tray may be made of deal, end walls of hard wood being provided in one form.