baber/WOPTO huggingface dataset:
Patent GB-1375298-A (GB)
IPC: G02C7/16
Filed: 1972-05-01
Abstract: 1375298 Anti-dazzle spectacles M BOONANTS and H BIEFNOT 1 May 1972 [7 May 1971] 20052/72 Heading G2J Anti-dazzle spectacles have screens or filters 4 attached to a frame so that they lie obliquely to the line of sight, and are attached at the side whence dazzle is expected. Each screen or filter has an upper cut-out 9 and a lower cut-out 10 so that when the line of sight is horizontal along a level stretch of road, the edge 13 appears to lie across the dazzle area, edge 14 appears to lie parallel to the line of sight and co-operates with edge 12 to define an area of dazzle protection normally corresponding to e.g. the opposite carriageway of a road, but allowing unobstructed vision at a level above the expected dazzle area (by cut-out 9). Edge 15 appears vertical in the field of view, and edge 16 acts as a guide, it appearing horizontal and spanning the user's carriageway when the screen is properly placed, so providing dazzle protection against far-off headlights. The screens are preferably hinged as at 6 to the first frame, and slidably attached at 5 thereto. The screens may be adjusted for a particular person by providing sight holes, Fig. 5 (not shown) at the free ends of the screens, the screens being adjusted until the same area is seen by each eye via its respective sight hole. The screens are preferably spring-urged to their oblique position, and edge 17 may be so formed as to clip over bar 2 to retain the screens flat when the spectacles are not in use. Side screens 7 are preferably also provided.
Patent GB-1111452-A (GB)
Title: Improvements in or relating to electric switchgear
Inventor: BIRT JOHN ROBERT
IPC: H01H3/46
Filed: 1965-05-12
Abstract: 1,111,452. Actuation of switches; gas blast switches. ENGLISH ELECTRIC CO. Ltd. 10 May, 1966 [12 May. 1965], No. 20099/65. Heading H1N. An operating mechanism for a plurality of gas blast switches (Fig. 5, not shown) is arranged to be unaffected by expansion or contraction of a metal enclosure 12. The enclosure 12 takes the form of a compressed air reservoir and supports a plurality of series connected switching heads (30) upon branched insulating columns 14. The heads may be of the kind described in Specifications 1,023,151 or 1,080,354. The operating mechanism contained within the reservoir consists of a control device 15, a beam 20 rigidly fixed to the housing of device 15 and supported at other points by pivoted links 23 allowing relative expansion between the beam and the enclosure 12. The device 15 operates, through a crank 17 a series of rods 19 having substantially the same coefficient of expansion as the beam and moving parallel to the beam. The rods 19 are coupled, through bell cranks 21 pivoted to the beam, to insulating rods 25 passing up through the insulators 14 to operate the switches. In a three phase arrangement (Fig. 2, not shown), the three control devices 15 may be coupled together.
Patent GB-718082-A (GB)
Title: Improvements in fire guards
IPC: A47G5/04
Filed: 1952-08-11
Abstract: 718,082. Fireguards. HALL & GOULDING (BOGNOR), Ltd., and GOULDING, E. H. Aug. 11, 1953, [Aug. 11, 1952.] No. 20192/52. Class 126. A fireguard comprises a wirework structure adapted to be fitted over a heater and enclose it on all sides, and gripper means to engage the heater and hold the guard firmly in position. The guard comprises vertical and horizontal frame wires 8, connected by vertical wires 9, and forming a rectangular prism with inclined sides. A flat strip 10 with cranked ends slides on the lower frame members 8, and a shaped fingerpiece 12 secured to the ends of the strip 10 enables the guard to be placed over a heater F, Fig. 6, the strip 10 being held against the front of the heater by compression springs 11 surrounding the frame members 8. The guard may have a curved top.
Patent GB-770516-A (GB)
Title: Improvements in the roasting of comminuted, roastable, sulphur-containing materials
IPC: C22B1/10
Filed: 1953-07-22
Abstract: Materials containing roastable sulphur, particularly sulphidic ores, which have a grain size such that at least 10 per cent by weight are below 0.3 mm., are roasted in a single fluidized layer consisting predominately of roasted material in which layer a substantial uniform degree of fluidization is maintained.  The temperature of the fluidized layer is maintained below 1000 DEG C. and the temperature in the gas space above the layer is maintained above that of the layer either by supplying at least part of the material to be roasted in such a manner as to fall freely into the bed, or by supplying a combustible fuel to and burning it in the gas space, the oxygen content of the reaction gases entering the gas space being correspondingly regulated.  Thus sulphidic iron ores may be roasted below 900 DEG C., or zinc containing ores may be roasted above 900 but below 1000 DEG C., the amount of combustible fuel passing into the gas space being regulated such that the temperature in the gas space is about 1100 DEG C.  Material to be roasted which contains particles of a grain size from 0.3 to 6 mm. may be fed to the bed by allowing it to trickle from a fall height of at least 1 m. through the gas space, the proportion of grains below 0.2 mm. being chosen so high that the desired rise in temperature in the gas space is obtained.  Material which is predominately below 0.3 mm. such as flotation concentrates may be supplied in part directly to the fluidized bed at a point less than 1 m. below the surface of the bed whilst the remainder is allowed to fall into the bed from above to cause the temperature increase in the gas space.  The roasted ore dust in iron sulphide roasting is largely Fe3O4.
Patent GB-1082494-A (GB)
Title: Baking auxiliary
Inventor: VRANG CARL
IPC: A23D7/01
Filed: 1964-05-15
Abstract: A composition for use as a baking auxiliary, especially for sugar-containing products, comprises 10-40 wt. per cent. of a mixture of one or more glycerol monoesters of saturated fatty acids having 12-14 carbons, in predominantly a -crystal form, and one or more propylene glycol monoesters of saturated fatty acids having 12-24 carbons, the weight ratio of glycerol monoesters to propylene glycol monoesters being from 85 : 15 to 60 : 40, and an emulsifier, in a medium comprising water and an organic substance or substances selected from the group consisting of liquid edible alcohols, liquid edible esters of such alcohols, and aqueous sorbitol, preferably in an amount of 10-40 wt. per cent. Emulsifiers include alkali metal salts of fatty acids, partial esters of one or more fatty acids and polyglycerol or a penta- or hexahydric alcohol, inner ethers of penta- or hexahydric alcohols, or one or more polyoxyethylene sorbitane fatty acid esters, in total amount of 1-8 wt. per cent. of the composition.
Patent GB-593694-A (GB)
Title: Arrangements for shaping and detecting electric pulses
IPC: H03K5/04
Filed: 1944-10-20
Abstract: 593,694. Pulse modulation; pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Oct. 20, 1944, No. 20400. [Class 40 (v)] The invention comprises a trigger circuit arrangement for producing pulses of predetermined character in response to the application of radio frequency pulses, and may be employed for reshaping radio frequency pulses, or as a detector and pulse shaping circuit in a pulse modulation receiver. The arrangement may also be employed for reshaping the reflected impulses in obstacle detection systems. R.F. pulses from the secondary circuit 31 of the I.F. transformer 30, 31 are applied over the condensers 60, 61 and resistance 59 to the grid 41 of the valve 32. The valve 32 comprises a pair of triode elements 42, 52 coupled together by the common cathode resistance 35 and back coupled over the resistances 56, 58 and condenser 55. Negative bias applied to the grid 51 from the source 53 normally renders the element 52 non-conductive, the element 42 then conducting. The application of an R.F. pulse to the grid 41 causes the anode current of the element 42 to decrease, and the resultant positive pulse applied over the condenser 55 to the grid 51 causes the element 52 to become conductive. The bias thus developed across the resistance 35 renders the element 42 non- conductive for a period dependent upon the time-constant of the circuit comprising resistances 56, 58 and the condenser 55, and which is longer than the duration of the incoming R.F. pulses. D.C. output pulses are derived across the resistance 58, possessing the same spacing in time as the incoming R.F. pulses, but with independent duration and amplitude. In a modified arrangement (Fig. 4, not shown), R.F. pulses are derived, of a frequency which is a component of the D.C. output pulse, by connection of a suitable tuned circuit across the terminals 4, 4. Specifications 509,820, 511,222, 523,575 and 593,731 are referred to.
Patent GB-639600-A (GB)
Title: Improvements relating to high-frequency induction heating apparatus
Inventor: BRIDLE JOHN HENRY
IPC: H05B6/36
Filed: 1948-07-31
Abstract: 639,600. Induction heating. MORRIS MOTORS; Ltd. July 31, 1948, No. 20430. [Class 39 (iii)] An inductor unit for heating flat strip comprises a pair of current feed plates B, C separated by a mica sheet D and splayed out at the ends E, F. A work coil A of copper tube is brazed to the splayed ends E, F of the current feed plates and may be water cooled. Slots G may be provided to facilitate connection to the secondary of the transformer in accordance with the induction disclosed in Specification 613,322 which is referred to.
Patent GB-500701-A (GB)
Title: Improvements in clamping devices for hose pipes and the like
IPC: F16L33/03
Filed: 1938-07-11
Abstract: 500,701. Band clips. O'NEILL, J. J. July 11, 1938, No. 20477. Convention date, July 12, 1937. [Class 44] A band clip for hose-pipes comprises a flexible member 7 which takes one or more helical turns round the hose pipe 4, its ends 8 overlapping and being forced further apart to contract the clip by toggle levers 11 pivoted together at 12 and to the arms 8 by pins 14 and eyes 9. Pivot 12 if pressed towards the pipe and the levers are held in tightenining position by passage of the pivot beyond the deadcentre. To allow adjustment for use with different sizes of pipe the levers have a number of holes 13 through which the pivot pins 14 may be selectively inserted.
Patent GB-1161293-A (GB)
Title: Improvements in or relating to a Method of and Apparatus for Drying Material
Inventor: LING THOMAS SYDNEY
IPC: F26B11/04
Filed: 1966-01-21
Abstract: 1,161,293. Drying granular material. HENRY BALFOUR & CO. Ltd. 13 Jan., 1967 [21 Jan., 1966; 10 May, 1966], Nos. 2773/66 and 20568/66. Heading F4G. In apparatus for drying granular material, the material passes from an inlet in a cover 2 above a steam-heated trough 1 for passage therealong by helical vanes 20 on the outer wall of a steam heated rotary hollow-walled drum 18, and the direction of movement of the material is then reversed by means (not shown) for passage between the inner wall of the drum and a hollow drive shaft 10 for the drum having heating steam passed thereinto and lifter vanes 16 on its outer periphery, the material being moved by helical vanes 21 on the inner wall of the drum 18 but of an opposite hand to the vanes 20. A heated gaseous medium passes in counter current to the material through the drum to remove the vapour generated during drying. The outer vanes 20 are arranged in a plurality of sections, each comprising circumferentially spaced vanes, helically arranged and staggered with respect to the vanes of the adjacent section. In a modification a plurality of vane flights, each including at least one section may be provided on the outer wall of the drum, each flight having the same axial length and the vanes of each flight having the same helix angle which angle may be adjustable within the range of 1 to 89 degrees. The inner vanes 21 may be continuous.
Patent GB-431295-A (GB)
Title: Servo motors for operating clutches
IPC: F16D48/02
Filed: 1934-07-13
Abstract: 431,295. Operating clutches ; controlling variable-speed gearing. FLEISCHEL, G., BlÚneau, Yonne, France. July 13, 1934, No. 20594. [Class 80 (ii)] A fluid-pressure or suction servomotor 1 for operating the clutch of a motor vehicle has two independent main control valves 8 and 8<1>, Fig. 1, for use when starting and when changing gear respectively, the valve 8 being associated with auxiliary means responsive to the reaction of the clutch so as to retard the engaging movement upon initial contact of the clutch parts. As shown in Fig. 1, the auxiliary means comprises a valve 11 controlling the atmospheric port 9, this valve being connected to a link 13 which interconnects the piston rod 4<1> of the servo and the clutch control rod 5. The valve 11 is urged towards closed position by a spring 12 and towards open position by the reaction. With the clutch disengaged, valve 11 is open. On operating the valve 8 to allow the clutch to engage, the first portion of the engaging stroke is relatively rapid, since valve 11 remains open, but upon initial contact of the clutch parts the valve 11 progressively closes, whereby the engaging movement is progressively retarded. Adjustable stops 14, 15 limit the movement of the valve 11. Where the gear box is controlled by a fluid servo 1<2>, having a main control valve 8<2>, an auxiliary control valve 11<2> is urged to closed position by a spring 12<2> and is adapted to be opened, so as to permit energization of the servo 1<2>, only when the clutch is fully disengaged, by the co-operation with the hooked end 39 of the rod 38 of the valve 11<2> with an abutment 40 on the link 13. As shown in Fig. 3, the cylinder of the servo 1 is itself movable in response to the reaction, against a spring 12<1>, the auxiliary valve 11 being fixed. As shown in Fig. 2, a separate auxiliary valve is dispensed with, the link 13 acting in one direction on the main valve 8, through an abutment 8a, to move it according to the reaction.
Patent GB-1454963-A (GB)
Title: Method of developing an electrostatic latent image and an apparat us for use therein
IPC: G03G13/09
Filed: 1974-05-09
Abstract: 1454963 Developing electrostatic images FUJI XEROX CO Ltd 9 May 1974 [10 May 1973]  20640/74 Heading G2H A magnetic brush developing apparatus comprises two, or more, closely adjacent magnetic brush rollers, electrically biased to assist development and including at least one roller with a bias differing from the adjacent roller. Preferably the bias voltages of a succession of rollers are all different, some being below the lower voltage limit of the electrostatic latent image being developed and others between the lower and upper limits of the latent image. The voltages applied may increase from the first roller to the last.
Patent GB-571115-A (GB)
Title: Improvements in or relating to the electrodeposition of zinc
IPC: C25D3/22
Filed: 1943-12-10
Abstract: 571,115. Electroplating. DU PONT DE NEMOURS & CO., E. I., and GRAY, A. G. Dec. 10, 1943, No. 20680. [Class 41] An acid zinc electroplating bath suitable for low-current densities such as 0.1 amps./ft.<2>, contains an acid or salt or partial salt of an anthraquinone sulphonate, such as 1-, or 2-, anthraquinone sulphonic acid or 1À8, or 2-7, anthraquinone disulphonic acids, or sodium, potassium, or ammonium bath-soluble salts thereof, 1-anthraquinone sodium sulphonate being particularly suitable. The acidity of zinc sulphate or chloride may be increased by adding aluminium sulphate or chloride or ammonium chloride up to a pH value between 3 and 7. The bath may contain additionally colloids such as glue, wetting agents such as alcohol sulphates or naphthalene sulphonates, or anti-pitting agents, in amount between 0.1 and 1 g.p.l. Nickel or cadmium may be co-deposited with the zinc. The amount of sulphonate added lies between 0.05 and 5 g.p.l., the preferred amount being 0.2. The latter addition may be made to the four baths set out in Transactions of the American Electrochemical Society, Vol. 80, p. 390 and to the zinc chloride baths on p. 211 of Vol. 50 of that journal.
Patent GB-223011-A (GB)
Title: Improvements in processes for rapidly drying peat
IPC: C10F5/00
Filed: 1923-08-15
Abstract: 223,011. Hinchley, J. W., Greenwood, R. G., and White, W. W. Aug. 15,1923. Peat, preparing.-A process of drying peat by the expression of liquid therefrom consists in subjecting the peat, whilst in the press, but prior to compression, to treatment with a hot fluid at a temperature not exceeding that at which distillation of the peat takes place. In one method of carrying out the process, the peat is first subjected to the action of steam for about three minutes and then for a period of twenty to twenty-five minutes to a pressure which finally reaches 4000 pounds per square inch. A suitable temperature for the preliminary heat treatment is 100‹ C. The peat may be pressed into briquettes in the apparatus described in Specifications 3998/15 and 101,782.
Patent GB-1371434-A (GB)
Title: Doctors for paper making or other machines
IPC: B31F1/14
Filed: 1972-05-04
Abstract: 1371434 Doctors for paper-making machines VICKERYS Ltd 10 April 1973 [4 May 1972 30 June 1972 6 Dec 1972] 20786/72 30805/72 and 56286/72 Heading D2A A doctor for doctoring a roll 15 of a paper making machine comprises a blade 13, a blade support 12, a suction duct 10 extending the whole length of the blade, and an elongated slot-like suction nozzle 26 also extending the whole length of the blade and communicating with the duct via slots 23 and 24 to transfer broke thereto that has been removed by the blade 13, one wall of the nozzle 26 being defined by the blade and its support and the facing wall of the nozzle extending to adjacent the tip of the blade. The facing wall is turned outwardly from the blade and may, as in Figure 3, be defined by a bulbous nose 25 to minimise turbulence. An air gallery 27 within the nose 25 can be used to project air blasts through ducts 30 to remove accumulations of broke. The facing wall is preferably constituted by a series of contiguous hood sections 16 positioned side-by-side along the length of the blade and each pivotable about a tube 17, a pneumatic piston and cylinder arrangement 20/21 being provided to raise and lower the hood sections 16. Accumulating broke in the suction nozzle 26 tends to cause lifting of the hood sections. This causes air ports 35 to be uncovered, the ports normally being closed by webs 22 extending from the sections 16 and dividing the suction nozzle. Air then leaks from a gallery 34 either into the suction slots 24, as in Fig. 3, or to atmosphere, as in Figs. 7 and 8 (not shown), and a pressure sensitive switch connected to the gallery acts via electrical and pneumatic circuitry (Figs. 4 and 5- not shown) to automatically raise the hood sections 16.
Patent GB-731662-A (GB)
Title: Improvements in inter-stage couplings for television and the like systems
Inventor: NIXON JOHN ESMONDE ARTHUR
IPC: H04N5/16
Filed: 1950-08-22
Abstract: 731,662. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 30, 1951 [Aug. 22, 1950], No. 20788/50. Class 40 (3). A.D.C. restoring circuit of the type employing a C.R. coupling circuit shunted by a diode returned to a fixed restoring potential different from that to which the resistor is connected suffers from the defect that it introduces a distortion of the waveform by countersinking the synchronizing pulses during the horizontal synchronizing period. This is illustrated in Fig. 3 in which PW indicates peak white level, BL the black level, VA the restoring level and SB the level at the bottom of the synchronizing pulses. According to the invention this distortion is reduced by returning the diode to a potential which is different during the frame synchronizing period from that applied during the remainder of the frame period. Thus, as shown in Fig. 4, the restoring diode D across the coupling circuit CR is returned to a potential VA at the junction of R2, C2. VC is a potential many times greater than the signal potential, and C2 is made small compared with C. With an input as shown in Fig. 5a, the potential at the anode of diode D varies as shown in Fig. 5b, condenser C2 charging during line periods and discharging into C when the diode conducts during the line synchronizing pulses. During the longer frame synchronizing pulses, C2 is more fully discharged and the diode anode potential falls, reducing the waveform distortion. The charge on condenser C nevertheless changes during the frame synchronizing period (although to a less extent than it would have done in absence of circuit C2, R2) and consequently during the immediately following line pulses the transfer of charge from C2 to C is less than normal, causing C2 to charge up and produce an overshoot as shown. This effect is removed by means of limiting diode D2 whose cathode returns to an adjustable potential VD. Circuit C3, R3 further improves this operation, producing a resulting potential at the anode of diode D, as shown in Fig. 5c. If desired, potential VD may be connected directly to the cathode of diode D2. For operation with positive-going synchronizing signals the circuit is modified by reversing the polarity of the two diodes and adjusting potential VB, VC accordingly.
Patent GB-403903-A (GB)
Title: Improvements in and relating to coal cutting machines
IPC: E21C25/30
Filed: 1933-07-24
Abstract: 403,903. Coal-cutting machines. ROSS, A., Parkside, Backworth, and CLEPHAN, G., The Cottage, Monkseaton, both in Northumberland. July 24, 1933, No. 20806. [Class 68 (i).] Jib-adjusting means for tensioning the cutter chain of a coal cutting machine comprise a tension block 3 and screw 4 relatively longer than usual, the block 3 being recessed at 3a to clear the screw and contain lubricant and having an integral &c. extension 8 to house the threaded end of the screw which is left plain near the operating head 4a and is held to the stationary part 1 of the jib by pins 9 engaging an annular groove 4b. A packing ring 5 engages recesses in the block 3 and in a plate 6 adjusted by screws 7. The threaded portion of the screw is thereby kept under cover and free from dust.
Patent GB-404053-A (GB)
Title: Improvements relating to liquid fuel and gas burners
IPC: F23D17/00
Filed: 1932-07-25
Abstract: 404,053. Gas and oil burners. BARKER, R. W., 56, Ludgate Hill, London.-(Todd Dry Dock Engineering & Repair Corporation; 25, Broadway, Manhattan, New York, U.S.A.) July 25, 1932, No. 20926. [Class 75 (i).] A hollow annular gas burner 9 disposed in concentric spaced relation within an opening 2 in the furnace wall is of ovoid shape in cross section with orifices 12 in the apex directed towards the furnace interior, and is supported by means permitting it to be moved from the operative position shown to the back part of the air register 1. The annular gas burner is connected by curved air deflecting vanes 11 with a collar 10 slidable on a jacket 3 surrounding a central oil burner 5. The gas burner is spaced from a flame cone 6 on the jacket 3 and from a Venturi ring 8 in the furnace opening. The apex of the annulus is pierced with orifices 12, and the annulus is supplied with gas by jointed flexible pipes 13-16. Air supplied by the register 1 envelopes the burner 9 and prevents overheating, and when the furnace is shut down the burner is retracted by a rod 17 to the back part of the register. The flame cone 6 is adjustable by a rod 7. Specification 211,116, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], is referred to.