baber/WOPTO huggingface dataset:
Patent GB-253545-A (GB)
Title: Improved signalling apparatus adapted for giving warning in the event of variation or breakdown in electric circuits
IPC: G08B21/00
Filed: 1926-06-10
Abstract: 253,545. Compagnia Italiana dei Segnali. June 10, 1925, [Convention date]. Lamp failure, alarms for. - Apparatus for acoustically signalling breakdown in electric circuits comprises an electromagnet O provided with two opposing windings A<1>, A<2> connected respectively in circuit with consuming devices K<1>, K<2>. The magnet core O is contained in an iron or other metal case S and attracts a blade or diaphragm M of magnetic material. Under normal circumstances, the magnetic effects of the windings A<1>, A<2> neutralize one another, but on a change in current consumption occurring in either of the devices K<1>, K<2> the equilibrium is upset. causing the diaphragm to vibrate, either by means of alternating current or by continuous current with a make-and-break device. An indicator or tell-tale lamp may be included in circuit with one of the windings A<1>, A<2>.
Patent GB-120595-A (GB)
Title: Improvements in connection with the Filtration of Water.
Inventor: CANDY FRANK PULLEN
IPC: B01D24/00
Filed: 1917-10-11
Abstract: 120,595. Candy, F. P. Oct. 11, 1917. Filters with loose filtering-materials.-Relates to filters of the type in which water is supplied to a sand or like filter from above and below at the same time, and consists in arrangements for supplying and drawing off the water and for washing. From the supply pipe 9, branches 11, 12 lead to the top and bottom of the casing 1 containing the filter. To ensure the pressure at the top of the filter being greater than that at the bottom, which hinders disturbance of the filtering material, a weighted valve, or equivalent pressure-reducing device may be placed in the pipe 12. Filtered water is drawn off through collector tubes 6 formed of two layers of wire-gauze, a fine layer 21 and a coarse layer 20, Fig. 3, wrapped round steel rods 19. In an alternative form, coarse sand is placed between the layers of gauze. The tubes 6 open into a header 5 connected to a draw-off pipe 7. The pipe 7 communicates by a pipe 14 provided with a valve 15 with the bottom of the casing 1, so that filtered water may be forced upwards through the filter to wash it, escaping by the pipe 11 and a. pipe 16. Compressed air may be introduced by a pipe 18 to agitate the filtering medium and assist washing. The unfiltered water may be used for washing, if sufficiently clean.
Patent GB-730124-A (GB)
Title: Improvements in roller flight conveyor
IPC: B65G17/06
Filed: 1953-05-27
Abstract: 730,124. Endless conveyers. WEBB CO., J. B. May 27, 1953 [May 31, 1952], No. 14711/53. Class 78 (1). A conveyer of the kind having an endless series of flights supported by a pair of spaced tracks each flight comprising a roller supported at its ends on a pair of wheels coaxial with the roller and running on the tracks, is characterized by the provision of a single endless propelling member positioned below and intermediate the ends of each roller, guide means on each side of the propelling member to define a path therefor parallel to the path of the roller supporting tracks, and means for connecting each roller to the propelling member. In the embodiment shown, the conveyer comprises rollers 16 supported at their ends by wheels 20 engaging a pair of tracks 14 and secured to an endless driving chain built up of units each consisting of a single link 11 and a double bar link 13 connected together by a pivot pin 12. Each roller is provided with a V-shaped carrier member 15 to which is welded a bracket 23 having flanges 25, 26 secured by nuts 35 to extensions 30 of the adjacent chain pivots 12. The flanges are positioned at different levels whereby the lefthand flange 25 of one bracket may overlie the right-hand flange of an adjacent bracket. On a straight run the chain is guided between the flanges 39 of a channel member 38, whilst on a curved run it is guided between rollers 40 rotatably mounted on a channel member 42 and a bar 43 shaped to conform with the curvature of the path. In a modification (Fig. 5, not shown) each roller 16 is replaced by a pair of coaxial rollers.
Patent GB-1192697-A (GB)
Title: Countercurrent Exchange Column and method of Operation of such a Column
Inventor: KOEHLY GERARD
IPC: C01G56/00
Filed: 1968-03-27
Abstract: 1,192,697. Contacting liquid phases; mixing- apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. 27 March, 1968 [4 April, 1967], No. 14723/68. Headings B1C and B1F. A method of operation of a counterflow liquid/liquid exchange column in which the liquids introduced at 8 and 10 are subjected to pulsed pressures comprises introducing the liquids into the column periodically in alternate sequence each for a period of time corresponding to a whole number of pressure pulsations. As shown a column has agitator paddles 20 in ultimate compartments rotated through a magnetic coupling 18.
Patent GB-129510-A (GB)
Title: Improvements in or relating to Tool Holders.
Inventor: NIBLOCK WILLIAM HENRY
IPC: B23B27/16
Filed: 1918-09-11
Abstract: 129,510. Niblock, W. H., Harris, H. A., and Leary, S. Sept. 11, 1918. Tool-holders. - In a lathe tool-holder, the tool k is supported in a recess f in a post d by a plate i which has a rounded under surface to register with the top surface of a ring g mounted on the tool-bar a. The tool may be adjusted by rotation of the post and by the axial movement of the tool-support i on the ring, and the whole is locked by the bolt f bearing directly on the tool. In a modification, the ring g is omitted, and the top surface of the bar is hollowed to receive the tool support i.
Patent GB-440178-A (GB)
Title: Improvements in kettles and like utensils
IPC: A47J36/00
Filed: 1934-06-22
Abstract: 440,178. Kettles &c. BANKS, J. T., Sandymount, Sutton-on-Sea. June 22, 1934, No. 14743/33. [Class 66] A kettle &c. of which the spout 9 serves also as the filling opening and is preferably provided with a removable flanged closure 10, is formed with a central open - ended tubular flue passage provided with a removable cover 5. Means such as the projections 8 are provided for spaccing above the kettle a second vesselplaced thereon for heating by the gases rising through the flue, or the spacing means may be provided on the undersurface of the upper vessel.
Patent GB-769057-A (GB)
Title: Foot-actuated cock
IPC: F16K21/12
Filed: 1955-05-23
Abstract: 769,057. Valves. TRUBERT, R. May 23, 1955, No. 14841/55. Class 135. A valve 6, situated on the outlet side of its seat 4 and urged to the closed position by a spring 7, is opened by means of a piston forming one end of a telemotor link 16, and the other end of the link is constituted by a piston 19 which is located in the floor and is operated by a pedal 22. The stem 13 of valve 6 is a loose fit in the hollow stem 12 of a piston 10 so that, in the position shown, make-up liquid from the inlet 2 can flow into the telemotor link through the space between stems 12, 13 and an aperture 15 in the piston 10. When the pedal is depressed, piston 10 is first advanced until it engages a flange 14 on valve stem 13 so as to shut off the connection between the telemotor link and the fluid inlet. If the valve 6 is carried directly by piston 10, liquid seeps into the telemotor link around the edge of the piston itself. Pedal 22 carries a ring 27 of flexible material, and when the pedal 22 is depressed, air trapped thereunder escapes through vent holes 26. A vent passage 24 runs through piston 19, but the upper end of this passage is normally closed by a gasket 25.
Patent GB-226744-A (GB)
Title: Improvements in and relating to absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1924-06-20
Abstract: 226,744. Marks, E. C. R., (Akt.-Ges. f³r Handels-und Industrie Werte Glarus). June 20, 1924. Absorption machines.-The generator-absorber A is provided with an internal cylindrical member J open at the bottom and containing a cooling coil K. The level of the refrigerating liquid F in the generator-absorber in the normal state of the apparatus is arranged above the bottom edge of the member J. In operation, the temperature of the liquid F is raised by a heater arranged below the member J until the gas is expelled from the liquid filling the member J and, after pressing back the liquid to the bottom of the member, escaping into the outer chamber. The gas then passes through a condenser to the evaporating chamber. After the gas has been expelled from the liquid the heater is shut off, the liquid absorbing the gas in the member J and being cooled as it comes into contact with the cooling coil K. The level of the liquid falls in the outer chamber until it reaches the position shown in Fig. 3, the reduced pressure in the chamber causing rapid evaporation of the liquid in the evaporator, and the gas thus formed being quickly absorbed in flowing upwards through the liquid F after passing under the edge of the member J. The cooling medium may flow through the coil K during the complete cycle of operations of the apparatus.
Patent GB-168165-A (GB)
Title: Improvements in wheels
IPC: B60B9/10
Filed: 1920-06-02
Abstract: 168,165. Robertson, W. E. June 2, 1920. Spring wheels with continuous outer rigid ring and metal springs, and with rubber-ring and like hubs and cushions.-The tyre-carrying rim 40 is mounted on a central disc 23, between which and a hub-ring 13 a rubber cushion 15 is fitted in com. pression. Side discs 16, rigidly secured to the hub, are connected by bolts 36 forming supports for coiled springs 25 which are fitted in compression in apertures 24 in the disc 23. Preferably, adjacent springs 25 are oppositely coiled; and in a modification, the springs are replaced by rubber cushions also fitted in compression. The inner periphery of the disc 23 is spaced laterally from the side discs 16, which are fitted with facings 19 of fibre, leather, &c.
Patent GB-684075-A (GB)
Title: Improvements in and relating to motor switch assemblies
IPC: H02K11/00
Filed: 1951-06-25
Abstract: 684,075. Centrifugal switches; control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. June 25, 1951 [June 27, 1950], No. 15021/51. Classes 38 (iii) and 38 (v) [Also in Group XXXV] A terminal board 18 within the casing of a split-phase motor carries the spring contacts 26, 30 of the starting switch and also a thermal overload cut-out device 40. Terminals 20, 21, 22, 23, extending through the board 18 are accessible through an opening in the end shield 6 and are connected at the rear to the switch and cut-out devices. The movable contact of the switch 30 is mounted on a spring 31 having a pair of arms 32 with wear pads 33 for engagement with a push-collar 16 controlled by a centrifugal device 14, while the stationary contact 26 is secured to the board 18, a stop 34 being provided to limit the disengaging movement of the spring arm 31. The spring member 31 is mounted on a projecting portion 37 providing spacing from the board 18 so that by suitable bending the pressure of the wear-pads on the push-collar 16 can be adjusted. The overload device 40 which contains a heater and bimetallic strip is mounted on the board. The running winding is split for connection in series or parallel to suit the applied voltage, suitable connections to the terminals being described. Specification 504,678 is referred to.
Patent GB-1065353-A (GB)
Title: Production of hydroxycarboxylic acids and derivatives thereof
IPC: C07C51/31
Filed: 1964-04-13
Abstract: In a process for the preparation of hydroxycarboxylic acid particularly hydroxycaproic acid, and derivatives thereof by the acid-catalysed rearrangement of a peroxy derivative of a cyclic secondary alcohol the solution is contacted at from 0 DEG  to 200 DEG C. with formic acid as the acid catalyst, the formic acid being present in at least 0.2 mols. per mol. of peroxidic and hydroxy groups in the solution.  The cyclic secondary alcohol may be of formula <FORM:1065353/C2/1> and examples are listed, and may be oxidized by molecular oxygen initiated by a peroxide.  Anhydrous formic acid or aqueous solutions thereof may be used and a corresponding ketone may be added to increase the yield.  The acid products may be converted to lactams and lactones for example, caprolactam is prepared by heating hydroxycaproic acid to about 300 DEG  C. for about 20 hours under pressure in the presence of ammonia and water.
Patent GB-211434-A (GB)
Title: An improved sterilising receptacle
IPC: A45D44/18
Filed: 1923-06-09
Abstract: A receptacle for articles, such as a tooth-brush, which are advantageously kept in a sterilized atmosphere is made of lead-free glass, to facilitate the penetration of the ultra-violet rays of natural light, and preferably has walls externally shaped so as to augment the diffusion of ultra-violet rays into the interior.  A receptacle made of lead-free glass and having longitudinally fluted walls is described.
Patent GB-246717-A (GB)
Title: Accelerating device for automatic fire-arms
IPC: F41A3/78
Filed: 1925-06-11
Abstract: 246,717. Soc. Anon. des Anciens Etablissements Hotchkiss et Cie. March 24, 1925, [Convention date]. Machine guns.-A spring device for accelerating the action of automatic guns comprises a spring-pressed lever adapted to be engaged by the breech-member at the end of its rearward stroke, the spring being thereby compressed, and by its reaction accelerating the return of the breech-member. The device is shown applied to a gas-operated gun. At the end of the rearward stroke of the gas piston 1, a face 11 on the piston engages one arm 8 of a cranked lever 8, 9 whereby a spring composed of Belleville washers 17 is compressed. The profiles of the contacting surfaces are such that the point of application of the force approaches the axis 6 of the lever during the backward stroke, so that the spring resistance increases.
Patent GB-1214447-A (GB)
Title: Improvements relating to range-finding photographic apparatus
IPC: G01S15/10
Filed: 1969-03-24
Abstract: 1,214,447. Automatic focusing devices. POLAROID CORP. March 24, 1969 [March 25, 1968], No. 15247/69. Heading G2A. [Also in Divions H4] A camera has means for propagating an acoustic signal in the direction of an object to be photographed, means for receiving the signal reflected from the object, and means responsive to the reflected signal for focusing the lens system accordingly. As shown, the acoustic range-finding device is mounted on the camera housing 10, and comprises identical conical horns 34, 36, for transmitting and receiving the acoustic signal, and a housing 32 for the associated circuitry. The lens system 24 is rotated, for axial focusing adjustment, by a worm gear 42 which engages with a geared bezel ring 40 forming part of the lens mount. The gear 42 is on a shaft 44, driven by a servomotor 50 which is connected to the circuit housing 32 as at 68. The circuitry is given in detail in Fig.3 (not shown). The acoustic signal is derived from a multi-vibrator or clock (82), which generates a continuous sequence of regularly timed equally dimensioned pulses. These are fed to a transmitter and transducer which generates a corresponding series of sonic impulses, which are propagated towards the object. The reflected sonic impulses are received by another transducer. A pulse signal representing the actual object distance, and a further pulse signal representing the minimal object distance of maximum lens focusing translation are presented simultaneously to a pulse width discriminator (122). This selects the signal having the shorter pulse width, which is utilized as representing the object distance to which the lens should be adjusted. An error signal representing the amount of focal adjustment required is derived by comparing the signal of object distance with a signal representing the distance at which the lens is actually focused. This information is derived at a further pulse width discriminator (142), which can assume one of three states: an "in focus" state, or movement of the lens one way or the other. In the latter cases, the error signal is utilized to drive the lens-coupled servomotor 50 in the appropriate direction to adjust the focus accordingly. The invention is particularly useful when the object to be photographed is moving rapidly, or when the ambient light is poor, or even non-existent, as in infrared photography.
Patent GB-714380-A (GB)
Title: Improvements relating to 1-substituted-4-aminopiperazines and acid addition salts thereof and the preparation thereof
IPC: C07D295/30
Filed: 1952-06-18
Abstract: The invention comprises N-amino-piperazines of the formula <FORM:0714380/IV (b)/1> and their acid addition salts; R is alkyl, aralkyl, monocyclic aryl, dialkylcarbamyl or a nitrogen-containing heterocyclic radical, and Y1 and Y2 are hydrogen or alkyl.  These are made from the corresponding 4-unsubstituted bodies by reaction with nitrous acid to give the 4-nitroso compounds, reduction of the latter to amino, and if desired conversion into salts.  The nitrous acid is preferably made in situ from an alkali nitrite and acid.  The reduction may be effected catalytically or with a metal such as zinc or tin and acid at -10 DEG  C. to +30 DEG  C.  An inert solvent may be present.  Suitable salt-forming acids are hydrochloric, hydrobromic, sulphuric, sulphamic, lactic, malic, citric, tartaric, benzoic and picric.  Examples describe the preparation of 4-nitroso- and 4-amino-piperazines carrying in the 1-position the following groups: methyl, benzyl, diethylcarbamyl, 2-pyridyl, 2-pyrimidyl and 2-thiazolyl.  Salts are also described.
Patent GB-770507-A (GB)
Title: Improvements in or relating to ethylene polymerization
IPC: C08F10/00
Filed: 1955-05-27
Abstract: In preparing polyethylene from crude lowpurity ethylene gas containing 30-70 per cent by volume of ethylene, the remainder being chiefly ethane with a trace of oxygen, the oxygen content is reduced to below 0.03 per cent and polymerization effected at 50 DEG  to 200 DEG  C. under 1000-25,000 lb./sq. inch pressure in the presence of a diluent-modifier and a peroxy catalyst.  The gas may be de-oxidized to the required level by passage through a hot tube packed with copper granules.  A diluent-modifier such as an aliphatic or aromatic hydrocarbon having 6 to 8 carbon atoms and free from aliphatic unsaturation such as hexane, n-heptane, iso-octane and benzene, and a catalyst such as t-butyl, benzoyl and cyclohexanone peroxides and cumene hydroperoxide are added to the de-oxidized gas and the mixture continuously polymerized, e.g. at 148 DEG  C. and 300 lb./sq. inch. The diluent, free from formaldehyde, is stripped from the resulting polymer which has a molecular weight of 1500 to 5000 Staudinger and may be used as a modifier for waxes and petroleum products.
Patent GB-613550-A (GB)
Title: Improvements in sound recording and reproducing apparatus
IPC: G11B17/00
Filed: 1946-05-21
Abstract: 613,550. Sound recording and reproducing apparatus. PROCTOR CO., Inc., B. A. May 21, 1946, No. 15398. Convention date, May 25, 1945. [Class 40 (ii)] In a sound recording and reproducing apparatus for dictation purposes using flexible disc records, the record 14 is supported by a stationary plate 13 having an opening 19 through which rollers 21 drive the record 14, said rollers 21 being frictionally driven by a roller 51 on a lay shaft 46 carried by a movable bearing 47 on a fixed bracket 49, the rollers 21 and 51 being held in contact with one another under the tension of a spring 53 which holds the shaft 44 of an electric motor 26 against the tyred rim 45<SP>1</SP> of a wheel 45 on the said lay shaft 46. The record 14, which is held in contact with the rollers 21 by an upper roller 22, is keyed by splines 18 to a centre shaft 17 mounted on a carriage 65 moving along runners 74, 75. A worm-wheel 68 on the centre shaft 17 drives a wheel 69 on a lead screw 71, which is also carried by the carriage 65 and is engaged by a half-nut 79 secured to the base-plate 12 on a bracket 78. During recording or reproducing, the record 14 is thus moved transversely with regard to the stylus 23 and driving rollers 21, so that the surface of the record 14 at the stylus point moves at constant linear velocity. Specification 532,095 is referred to.
Patent GB-1029668-A (GB)
Title: Soot blower for steam boilers
IPC: F23J3/02
Filed: 1965-04-12
Abstract: 1,029,668. Soot-blowers. M. BRINKER, [trading as M. SPUHR & CO.-APPARATEBAU]. April 12, 1965 [April 21, 1964], No. 15514/65. Heading F2N. In a soot-blower comprising a blast pipe 14 having a lateral nozzle whereby pressure medium is blown internally against a boiler wall 1 and having a driving device effecting rotation and axial advance of the pipe, the supply of pressure medium to the pipe is controllable by the driving device such that the supply of pressure medium automatically increases with increasing advance. A connection pipe 12, Fig. 2 (not shown), of the blast pipe 14 has a blind end bore 18 and a triangular control opening 19, and is rotatably supported in the cylinder 11 mounted on the feeding device 3 and driven, via gear mechanism 4, by an electric motor 5. A control sleeve 21 which initially covers the opening 19, is guided on the pipe 12 and during rotation of the pipe is screwed into a fixed sleeve 24 to allow the edge 26 of the sleeve 21 to uncover the opening 19. The jets 17 of pressure medium impinge on the wall 1 in spiral paths. A lost-motion connection allows the pipe 14 to execute a half-turn before being retracted and cause the jets 17 to sweep areas of the boiler wall different from those swept during advance of the pipe.
Patent GB-663371-A (GB)
Title: Improvements in or relating to method of and apparatus for drying and calcining material
IPC: B01J6/00
Filed: 1948-06-09
Abstract: <PICT:0663371/III/1> <PICT:0663371/III/2> In a method of drying and calcining calcium or strontium carbonates wherein the material is dried while carried in suspension in a hot gas stream, a conveyer H delivers the raw material together with partly dried material from the separator B of the first stage through a mill A into a stream of hot gases supplied from the second separator D into separator B whence the separated material is fed by conveyer C into hot gases in a conduit 26 and it is carried into the second separator D from which it may be discharged through duct 28 and separtaor 30 or fed into the furnace E for calcining.  The furnace, which supplies hot gases to the system, is of the type disclosed in Specification 663,370, [Group XII], having combustion chambers 37 and separating chambers 47 the rear walls 48 of which extend from the roof 36 to the bottom walls of hoppers 50.  The offtakes 53 for the flue gases from the separating chambers are located in the roof between partition walls 51 and the rear walls 48.  At the bottom of each of the hoppers 50 for the separating chambers and hoppers 43 of the furnace chambers are conveyers G for removing the calcined material from the furnace, the material being carried in an air stream through conduit 54a to separator 55 and storage bin 58. The partly dried calcium carbonate from separator B is delivered into the column of hot gas leaving the furnace at a temperature of 1500 to 1600 DEG F., is completely dried and preheated to a temperature of about 800 DEG F.  The material descends through furnace chamber 37, is calcined instantaneously and approximately one-third of the limestone falls into hopper 43 the remaining limestone and flue gases passing into chamber 47 where the limestone falls into hopper 50 and is discharged, the flue gases entering conduit 26 through off-takes 53.  Any material leaving with the flue gas will be removed by separator D and returned to the furnace.