baber/WOPTO huggingface dataset:
Patent GB-1029983-A (GB)
Title: Improvements in or relating to multiple-beam r.f. apparatus
IPC: H01J25/16
Filed: 1963-02-14
Abstract: 1,029,983. Klystrons. GENERAL ELECTRIC CO. Feb. 14, 1963 [Feb. 16, 1962], No. 6014/63. Heading H1D. Radio frequency apparatus for combining the outputs of a plurality of electron discharge devices, e.g. klystrons, comprises projecting the beam from each device successively through an interaction gap of each of at least a pair of spaced resonant sections of transmission line, each of the gaps being formed by an active capacitive element, a passive capacitive element being disposed between adjacent active elements in each section to form periodic loading in each section, the active and capacitive elements having substantially equal capacitive values, a standing electromagnetic wave being established in the first of the sections whereby a standing electromagnetic wave is induced in the second of the sections, radio frequency energy being extracted from the second section. One or more further sections may be provided between the input and output sections, each capacitively loaded and each section parallel with the others. The transmission lines may be rectangular waveguides and the whole structure form one evacuated envelope.
Patent GB-149890-A (GB)
Title: Improvements in or relating to air or like compressors
IPC: F04B39/12
Filed: 1920-02-28
Abstract: 149,890. Pritchard, P. Feb. 28, 1920. Valves, arrangement of.-In a compressor of the kind wherein the path of the compressed air leads from the cylinder end through a passage in the cylinder wall and a passage through the piston to the receiver, t h e passage through the piston is U- shaped and extends in either a vertical or an horizontal plane. Fig. 1 shows a compressor formed with a passage 4 in the cylinder wall and a piston formed with ports 7, 8 connected' by an U-shaped passage and opening at the upper end of the stroke to the passage 4 and outlet port 9 respectively. A port 10 in the cylinder wall admits air at the lower end of the stroke. The ports 6, 9 are formed with bars which prevent the opening-out of the piston rings 11, 12 when passing over them. In a modification, the ports 6, 9 are at the same level, the U-shaped piston passage being horizontal. The head 14 of the cylinder may be removable, so that the compression may be adjusted by the use of heads of different shape.
Patent GB-1184911-A (GB)
Title: Control Circuit for Electron Beam Convergence Apparatus
IPC: H04N9/28
Filed: 1967-02-08
Abstract: 1,184,911. Cathode-ray tube circuits. R.C.A. CORPORATION. 8 Feb., 1967 [14 Feb., 1966] No. 6111/67. Heading H4T. A convergence control circuit for a multibeam colour reproducing cathode-ray display tube includes means for nullifying unwanted currents induced in the convergence means from the beam deflection means. Such currents produce adverse effects at the vertical deflection frequency, mainly in the blue-gun convergence means and the described embodiment is directed to the correction of such effects. Thus, as shown in Fig. 3, the vertical winding 34B of the blue convergence magnet 32, which is supplied with a voltage wave 45b, generally of parabolic shape and derived via a shaping circuit 44 from the wave 42 produced across cathode resistor 39 of the vertical output tube 35, to effect the normal convergence correction, is further supplied via potentiometer 59 with opposite polarity pulse type voltage waveforms 50, 51 derived from the vertical output transformer 37. These waveforms are modified by the shunt arrangement of diode 61, which may be replaced by a capacitor (Fig. 13, not shown) and resistor 62, as explained with reference to equivalent circuits (Figs. 4 and 5, not shown) and voltage waveforms (Figs. 6a to 9, not shown) to produce a resultant voltage waveform having the shape shown in Fig. 10. This produces a current waveform in winding 34B having the shape shown in Fig. 12 which opposes the current waveform (Fig. 11) induced by the beam deflection means due to the proximity of the latter to the convergence windings on the neck portion of the display tube (Fig. 1, not shown). The vertical windings 34G and 34R of the red and green convergence magnets are supplied with the parabolic voltage waveform 45 and tilt control is effected by means of a master tilt control potentiometer 48 which introduces a saw-tooth current wave 52 as a result of application of the voltage waveforms 50, 51. Differential tilt control is effected by potentiometer 56 and a differential amplitude control potentiometer 53 varies the distribution of the parabolic current through the windings 34G, 34R. The circuitry for the horizontal convergence winding 33G, 33R, 33B may be of known type.
Patent GB-437163-A (GB)
Title: Improvements relating to pocket cases
IPC: A24F27/12
Filed: 1935-02-26
Abstract: 437,163. Pocket cases. LYMANS, Ltd., 286, St. Paul Street West, Montreal, Canada.- (Assignees of Andrews, J. H. ; 3736, Cote des Neiges Road, Montreal, Canada) Feb. 26, 1935, No. 6152. Convention date, April 3, 1934. [Class 18] A pocket case which simulates a match holder of the type comprising a rear wall, a closure flap and an upturned fixed flap under which the closure flap is secured when the casing is closed, is constructed with an inner wall 14 spaced from the rear wall 10 by one or more spacing members preferably of U- shape having arms 16 which simulate matches, the spacing members being non-removably secured at their lower ends to the walls. The wall 14 may be lined at 19 to simulate matches.
Patent GB-124444-A (GB)
Title: Improvements in Glass Containers for Preserving Vegetables or the like.
Inventor: SCHEIDWEILER ALBERT
IPC: B65D41/04
Filed: 1919-03-12
Abstract: 124,444. Scheidweiler, A. April 25, 1916. [Convention date]. Vacuum closures. - A cover for a glass container for preserving vegetables &c. consists of a circular plate 1 of waste window glass, looking glass, &c. of suitable diameter with its edge covered by a ring 2 cut from a tube of rubber &c. of a diameter smaller than that of the plate and stretched over the plate. The cover is held on the neck 3 of the container 4 during the cooking and sterilization by a metal screw cover 5, which may have a circular opening in its upper surface and may be removed from the sterilized container or left thereon as desired.
Patent GB-577896-A (GB)
Title: Improvements in or relating to the manufacture of detonating explosives and productsobtained thereby
IPC: C06B21/00
Filed: 1942-05-08
Abstract: 577,896. Explosive compositions. WRIGHT, H. R., RIGBY, C. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 8, 1942, No. 6208. [Class 9 (ii)] An explosive composition comprising essentially a crystalline polynitric ester that does not become liquid at storage temperatures of about 50‹ C. as the predominating ingredient, intimately distributed throughout a desensitising medium comprising a viscous solution of nitrocellulose in a liquid aromatic nitro-body, is formed by dissolving the crystalline polynitric ester, liquid aromatic nitrobody and nitrocellulose in a common solvent such as acetone and co-precipitating the ingredients by a liquid miscible with the solvent.. The liquid aromaticnitrobody and nitrocellulose are such that the nitrocellulose is capable of being gelatinised by the nitrobody. Examples of crystalline polynitric esters used are pentaerythritol tetranitrate, erythritol tetranitrate, hexanitromannitol, dipentaerythritol hexanitrate, anhydroennea hepitol penta-nitrate, dulcitol hexanitrate and sucrose octanitrate. The nitrocelluloses conveniently usable are those having a nitrogen content of 11.6 per cent and upwards. The liquid for precipitation and solution is preferably volatile such as acetone, but other watermiscible volatile aliphatic ketones such as methyl ethyl ketones can be used. As the nitro-body, there may be employed the liquid mono-, di- and polynitric aromatic compounds or hydrocarbons or mixtures thereof. The particles of co-precipitated mixture are dried off at a raised temperature and can then be rolled lightly and extruded. An example comprises '76.25 parts of pentaerythritol tetranitrate dissolved in 500 parts of 95 per cent acetone, and 22.5 parts of a mixture of isomeric dinitrotoluenes 75 per cent and trinitrotoluene 25 per cent ; 1.25 parts of nitrocellulose having a nitrogen content of 12.0 per cent and a viscosity of 30 c.g.s. units in 40 per cent solution in 95 per cent acetone at 20‹ C. are dissolved in 7¢ per cent acetone and added to the former solution, which after stirring, is run into 1000 parts of cold water, and the resulting precipitate is filtered off, dried and rolled, forming a plastic mass suitable for extrusion. Specification 574,544 is referred to.
Patent GB-551297-A (GB)
Title: Transformer
IPC: H01F38/14
Filed: 1942-05-08
Abstract: 551,297. Transformers. STANDARD TELEPHONES & CABLES, Ltd. May 8, 1942, No. 6226. Convention date, May 8, 1941. [Class 38 (ii)] [Also in Group XXXIX] A transformer for coupling a line 13 which is balanced with respect to ground to an unbalanced line 14 in a manner which minimises the transfer of longitudinal disturbing currents in the balanced line comprises two lengths of twisted quad 11, 12, mounted side by side on a support 10 and wound in opposite directions the primary and secondary windings each being composed of two wires of each quad in series, as shown in Fig. 2. The windings are grounded at their midpoints 16, 17 and the line 14 is connected to the points 2, 17. If, however, two balanced loads 15, 151 are to be fed, a further connection is made to the point 6 over a switch 31. The arrangement of the winding sections balances out the couplings between the primary and secondary that are due to longitudinal currents in the line 13, but there remain couplings between the component sections of each winding which tend to raise the potential of the ungrounded side of the line 14. To balance this effect, the other side of the line 14 is connected to the grounded point 17 through an adjustable resistance 21 which receives current from the two sides of the line 13 through adjustable condensers 19, 20. The shunting effect of the last-mentioned couplings may be counteracted by an inductance and condenser in series with the primary or secondary, these elements preferably resonating at the midfrequency of the transmitted band. The transformer is enclosed in a shield 18.
Patent GB-102043-A (GB)
Title: Improvements in or relating to Carburetters for Internal Combustion Engines.
Inventor: GODWARD ERNEST ROBERT
IPC: F02M9/127
Filed: 1916-05-01
Abstract: 102,043. Godward, E. R. Nov. 4, 1915, [Convention date]. Spray carburettors.-A carburettor comprises an inner tube 1 fixed to a base 6, an outer tube 3 fixed to the base 6 and to the inductionpipe connexion 5, and an intermediate tube 2 which is lifted by suction acting upon its coneshaped top 15, the apex of the cone entering the inner tube 1. The tubes 1, 2 are covered internally and externally, and the tube 3 internally only with gauze, the whole forming a chamber lined with absorbent material and which expands from the mixture inlet to the induction pipe, Lateral movement of the tube 2 is prevented by bent wire pieces 14 attached thereto. The inner tube encloses the adjustable nozzle 9, to the upper end of which is fitted a roll of gauze 10. The flow of air entering at 7 is controlled by a helical spring 12, the coils of which are normally closed and are opened by suction. The larger diameter of the spring may be at the bottom instead of at the top as shown. A screen 13 prevents back-firing.
Patent GB-1254179-A (GB)
Title: Liquid treatment apparatus and method
Inventor: SMOLSKI LUDWIK
IPC: B01F3/04
Filed: 1969-02-05
Abstract: 1,254,179. Sea calming apparatus. POLCON CORP. 5 Feb., 1969, No. 6283/69. Heading B7M. [Also in Division B1] Air is bubbled through a submerged tube 16 provided with a helical baffle 19 to promote turbulence for the purposes of destratifying liquids in tanks or reservoirs, preventing ice formation on bodies of water, and attenuating waves in shipping channels. The tube may be pivotally mounted to permit movement in a vertical plane.
Patent GB-653499-A (GB)
Title: Improvements relating to the isomerisation of dialkyl benzenes
IPC: C07C5/27
Filed: 1947-05-12
Abstract: Dialkyl benzenes are isomerized by contacting with a silica or silicate-containing catalyst, which is a catalyst for the conversion of high molecular weight hydrocarbons into hydrocarbons of lower molecular weight, at a temperature of 350-700 DEG  C., and a flow rate of 8-200 liquid volumes per volume of catalyst per hour.  A xylene feed may be fractionated or filtered at low temperature to give a p-xylene content of not more than about 13 per cent while the equilibrium mixture at above 350 DEG  C. contains about 21 per cent. Suitable catalysts are silica-alumina, magnesia or zirconia or silica-alumina-zirconia gels, and clays such as bentonite or montmorillonite, raw or activated.  Preferably the flow rate is between V1 and V2 which have the respective values 1.4 and 1.7, both raised to the power T-32 where 10T is the reaction temperature in DEG C.  At 450 DEG  C. preferred flow rates are 80-200.  Regeneration of catalyst by burning off carbon should preferably be effected after not more than 10 minutes on-stream time.  Advantageously, a powdered catalyst is passed continuously through the isomerizer. Pressure may be up to 15 atmos.  The product may be fractionated to yield a p-xylene concentrate, the rest being recycled or the o-xylene may be recycled in amount sufficient to maintain the proportion in the feed the same as that in the equilibrium mixture at the isomerization temperature.  Where o-xylene is desired, it is recovered by fractionation.  A mixture of m- and p-xylene may be obtained from a mixed feed by fractionation and concentrated by freezing at very low temperature to give a solid which may be 95 per cent para.  The ortho and meta may be blended and isomerized.  Other dialkyl benzenes which may be treated are the diethyl, ethyl methyl, and propyl methyl benzenes.  In an example, m-xylene is passed at a flow rate of 120 over silica-alumina gel at 450 DEG  C. and atmospheric pressure, the product containing 18 per cent p- and 13 per cent o-xylenes.
Patent GB-512306-A (GB)
Title: Improvements in shuttle guards for weaving looms
IPC: D03D49/58
Filed: 1939-02-27
Abstract: 512,306. Shuttle guards. CONLONG, F., and WORRALL, R. M. Feb. 27, 1939, No. 6353. [Class 142 (iii)] A shuttle guard device comprises a guard 20 hinged to the handrail 14 and connected by linkage 26, 27 to a fixed bracket 25 so that during the beat-up the guard is automatically raised to clear the temples and expose the fell, the links being normally locked together to act as a single link and adapted to be unlocked to enable the guard to be raised manually. The links are locked together by a slidable sleeve 29 covering the hinged joint of the links. The guard may be a wood or metal grille or a wire mesh extending completely across the shuttle race or in the case of wide looms the guard may be in sections each with its own linkage. The guard may extend over the centre or ends of the shuttle race only, a fixed guard rod being then also used.
Patent GB-488918-A (GB)
Title: Improvements in textile fabrics and in methods and apparatus for finishing same
IPC: D03D23/00
Filed: 1938-03-01
Abstract: 488,918. Finishing fabrics. GROVES, W. W. (Mount Hope Finishing Co.) March 1, 1938, No. 6406. [Class 42 (i)] Fabrics 11 having a plain open-mesh ground with raised spots 15 on one face formed by interweaving rovings with several ground threads are partly finished, e.g. bleached, dyed, sized, &c., then the flattened dots are fluffed up by jets of air &c. with or without a prior scraping action as at 27, and finishing is then completed by sizing the ground only from the back by spraying as at 59, tentering and drying at 61, and pleating as at 65. The air jets escape from a chamber 35 between plates 27, 31 opposite to which is a support 43 for the fabric 11. The fabric is supported also by a baffle 53 which deflects the air back through the fabric.
Patent GB-451213-A (GB)
Title: Improvements in wireless aerials
IPC: H01Q9/27
Filed: 1936-03-03
Abstract: 451,213. Aerials. JENSEN, R., 75, Prinsessegade, Copenhagen. March 3, 1936, No. 6436. Convention date, March 4, 1935. [Class 40 (v)] An aerial is made of a coil 2 of tin-foil laid between two sheets of insulating material 1. The coil commences at the centre, and terminates in a metal strip 4, connected through a plug 3 to the receiving set. The aerial may be suspended from a wall by eyelets 5, and may be rolled up to vary its effective length or it may be laid under a carpet.
Patent GB-308303-A (GB)
Title: Improved process for the reproduction of the natural appearance of articles on other surfaces
IPC: B41M3/06
Filed: 1929-02-27
Abstract: 308,303. Oxford Varnish Corporation, (Assignees of Casto, L. V.). March 21, 1928, [Convention date]. Drawings to Specificatior. Printing in several colours; printing special designs.-To produce an appearance of marble on other surfaces, a negative and a positive printing surface are made from the marble surface to be reproduced, and! successive transfers of pigments in different colours, and out of register, are made on to the surface to be decorated. A preliminary ground colour coat may first be applied. The printing surfaces may be made by etching through a carbon resist, and half-tone or photogravure printing surfaces prepared.
Patent GB-980681-A (GB)
Title: Heat-insulated containers
IPC: A61D19/02
Filed: 1962-02-20
Abstract: 980,681. Cold and heat retaining vessels. CYROGENIC ENGINEERING CO. Feb. 20, 1962 [Sept. 18, 1961], No. 6513/62. Heading F4U. An insulated container comprises an inner shell 11 spaced from and heat-insulated from an outer shell 10, the inner shell being adapted to support therein a plurality of cannisters 50 or other articles on a deck 46 which is rotatable so that any one cannister &c. may be brought into alignment with an access opening provided in the container for insertion or removable of such cannister or other article, the access passage having cross-sectional dimensions substantially less than the axial length thereof. The apparatus shown is intended for the storage of physiological specimens used in the artificial insemination of livestock, the specimen being stored in the cannister 50 on ampoulecarrying canes 58. Each cannister has a shoulder 51 by which it is supported in a corresponding hole formed in the deck 46. The access opening through which a cannister is inserted or removed is formed by a tube 64A surrounded by and heat-insulated from an outer tube member 64. The opening is normally closed by a capped plug 13 comprising three sections 86 of balsa wood. A cannister may be lifted up and suspended within the access opening (see e.g. Fig. 1b) when for example its contents are to be inspected or changed. The heat insulation between the inner and outer casings 10, 11 and between the tubes 64a and 64 is preferably a laminate consisting of alternate sheets of glass paper and metal foil, the space between the shells and tubes being evacuated. Any residual gas pockets are removed by activated charcoal 18 stored in a housing 17 in communication with the heat-insulating space between the shells. The inner shell 11 is filled with a cryogenic liquid such as liquid nitrogen in which the cannisters are normally immersed.
Patent GB-579084-A (GB)
Title: Improvements in and relating to pneumatic tube carriers
IPC: B65G51/06
Filed: 1944-04-07
Abstract: 579,084. Pneumatic despatch apparatus. EDWARDS, W. A. April 7, 1944, No. 6540. [Class 78 (i)] In a pneumatic tube carrier of the kind having two relatively rotatable shells provided with apertures in their sides, a ring is secured within one end of the inner shell and is provided with two abutments which act as stops for the open and closed positions of the carrier and one of which is engaged by a spring-controlled lever to lock the carrier in closed position. The ring 13, Fig. 2, is secured by spot-welding in the open end of the inner shell 10 and is provided with abutments or studs 17, 18. The screws 14, 15, 16 which secure the pad 11a, Fig. 1, carry a disc 19 on which is mounted a lever 21 controlled by a spring 23. When the carrier is closed, the screw 14 is in engagement with the abutment 17 and the lever 21 prevents accidental opening. In a modification, Fig. 6, the end of the lever 21 which engages with the abutments is provided with a slot 25 which receives a peg 26 on the disc 19, and the part 21a of the lever is shaped ta maintain contact with the ring throughout therotation of the shells.
Patent GB-1059334-A (GB)
Title: Improvements in piston-piston rod assembly
IPC: F01B11/04
Filed: 1963-09-11
Abstract: 1,059,334. Pistons. ALKON PRODUCTS CORPORATION. Sept. 11, 1963 [Dec. 3, 1962], No. 6559/66. Divided out of 1,059,332. Heading F2T. A piston 16 is secured to a rod 15 by means of an externally threaded split sleeve 23 received within an elongated groove 22 in the rod and over which the piston is screwed until a second groove 26 in the rod 15 is exposed and into which is inserted a split retaining ring 27. The piston is finally screwed back in order to exert pressure on ring 27. A sealing ring 25 is located in an intermediate groove 24 in the red.
Patent GB-1376904-A (GB)
Title: Rotary fans
IPC: F01P7/08
Filed: 1971-03-11
Abstract: 1376904 Cooling I C engines DYNAIR Ltd 10 March 1972 [11 March 1971] 6633/71 Heading F1B [Also in Division F2] A cooling fan 18 for an internal combustion engine Fig. 2 (not shown) incorporates a clutch 22 which clutches the input member 10 to the member 20 which carries fan 18, under the action of a spring 48 which biases the fan hub 15 to the right (as shown) the clutch being disengaged upon pressure fluid being supplied through a flexible conduit to a chamber in member 32 to move a piston 40 which, through thrust bearing 46, disengages the clutch. This disengagement is in accordance with engine temperature, a sensing element 60 in the bottom hose 61 of the radiator allowing piston 65 to move to the left under the action of spring 67 and supply pressure to disengage the clutch on a drop in coolant temperature. The system shown may be replaced by a temperature controlled valve controlling a supply of pneumatic or hydraulic pressure.
Patent GB-329719-A (GB)
Title: Improvements in boiler furnaces
IPC: F23M7/00
Filed: 1929-03-01
Abstract: 329,719. Moorhouse, E. A. March 1, 1929. Furnace fronts ; firebridges. - In boiler furnaces, semicircular chambers A, A1 are arranged adjacent the furnace front and the fire-bridges B, B1 are made hollow and provided with a longitudinal partition C notched at the top to provide for the circulation of water which is subsequently used as feedwater. The course of the water through the chambers A, A' and firebridges B, B1 is indicated by arrows. The chambers and firebridges are provided with removable end plates. The water may enter the firebridges B, B1 before passing to the chambers A,A1.
Patent GB-1000268-A (GB)
Title: Improvements in or relating to display boards
IPC: G09F7/04
Filed: 1963-02-20
Abstract: 1,000,268. Display boards. F. M. SYDER. Feb. 20, 1963, No. 6771/63. Heading G5C. Fig. 1 shows a display board of a light ferrous metal having a corrugated surface and being surrounded by a plastic edging 3. Notices &c. may be fixed to the board be means of circular magnets 2 which have one side corrugated. A top caption of ferrous metal symbols 8 may be held on to a bar magnet 6 inserted at the top rear of the board, as shown in Fig. 3.