baber/WOPTO huggingface dataset:
Patent GB-642373-A (GB)
Title: Thermionic valve circuit for the generation of a current varying linearly with time
IPC: H03K4/32
Filed: 1946-09-27
Abstract: 642,373. Sawtooth generating circuits. BENDIX AVIATION CORPORATION. Sept. 27, 1946, No. 28963. Convention date, Sept. 29, 1945. [Class 40 (vi)] In a magnetic deflecting circuit for a cathoderay tube in which the deflecting coils constitute an impedance in the output circuit of an amplifying valve, the linearity of the scanning is improved by means of a feedback circuit between the output and input of the valve, the time constant of the deflecting coils being made equal to that of the feedback network. The Figure shows a circuit for producing a sawtooth current in an inductive load 19 linearized by negative feedback via the network 16, 17. Valve 13 is normally cut-off but when a positive going pulse is applied to the input terminal the valve conducts and the current through the load 19 is caused to have a second differential with respect to time which is zero, i.e. a current time curve which is linear, by making the time constant of feedback network 16, 17 equal to that of the inductor 19.
Patent GB-617380-A (GB)
Title: Improved machine for washing casks or barrels and other receptacles
IPC: B08B9/08
Filed: 1946-09-27
Abstract: 617,380. Cleaning casks. RYDER & CO., (MANCHESTER), Ltd., T., LECOMBER, G. W., and DUTTON, A. Sept. 27, 1946, No. 28968. Class 21] A cask washing machine comprises a rotatable housing c having radiating therefrom arms e carrying cask-supporting cradles h, means for tilting the cradles to facilitate withdrawal of the casks, means for inserting a nozzle v into each supported cask and means for withdrawing the nozzle and controlling the delivery of fluid through the nozzle. The cradles h are tilted by a ball-jointed rod p actuated by a pivoted lever having a roller in contact with a cam track t on the fixed base of the machine. Each cradle has two pairs of rollers i mounted on arms j pivoted to swing in or out to accommodate small or large casks. The movement of the arms j is limited by stops m and opposite pairs of these arms on each cradle are joined by a lever k to give simultaneous movement. The nozzles v are raised or lowered by levers positively operated by a cam track 19, and are rotated by shafts and mitre wheels by the motion of the housing c about a fixed toothed member concentric with the central column of the machine. Each nozzle is supplied through pipes 9, 20 from a distributor head 21 having a fixed internal valve 22 about which it revolves. Pipes 26, 24 deliver steam and water separately, supplied in turn to the nozzles according to the disposition of the ports 23, 25 of the valve 22. When a cask is removed from a cradle, a valve 10 is caused to close by a counterweight, cutting off fluid to the nozzle. The valve 10 is opened by the weight of a replaced cask acting through levers. The arms c are supported by rollers f on a track g and the housing c may be motor driven through a worm wheel attached to its central column, and have automatic switches to stop the arms e at positions forloading ordischarging. Further ports may be provided in the valve 22 for further cleaning fluids.
Patent GB-438551-A (GB)
Title: Improvements in and relating to heat engines
IPC: F02G3/00
Filed: 1934-10-10
Abstract: 438,551. Hot-air engines; pistons. HEALY, J., Mentulla, Murroe, Co. Limerick, Irish Free State. Oct. 10, 1934, No. 28976. [Class 7 (i)] [See also Group XXVI] The engine piston 5 is heated at starting by an electric heating element 8 and draws in and compresses air, which is heated by the piston ; and hot water is sprayed into the cylinder at the end of the compression stroke. The water is heated by an external source and by the heat of the engine exhaust. As shown, the part 5 carrying the piston-rings 6 is insulated by an asbestos lining 10 from the electrically heated head 7 of the piston. The element 8 is heated by current from a battery charged by a dynamo driven from the engine. Specifications 15085/89, 13912/91, and 27288/98, [all in Class 122], are referred to.
Patent GB-1281545-A (GB)
Title: Slime-controlling agent
IPC: C02F5/12
Filed: 1969-06-09
Abstract: 1281545 Preventing slime KURITA WATER INDUSTRIES Ltd 9 June 1969 [10 June 1968] 28988/69 Heading C1C [Also in Division C7] Slime on surfaces in contact with water is reduced or prevented by the addition of ethylenediamine tetra - acetates, 1,2 - cyclohexanediamine tetra - acetates, diethylene - triamine penta - acetates or ethylenediamine - N,N<SP>1</SP> - diacetate - N,N<SP>1</SP> - dipropionates and a cationic surface-active agent.
Patent GB-848995-A (GB)
Title: Improvements in fluid pressure systems and apparatus
Inventor: TURNER PHILIP WILSON
IPC: F16F13/08
Filed: 1957-09-16
Abstract: 848,995. Hydraulic dampers. MOULTON DEVELOPMENTS Ltd. Sept. 16, 1958 [Sept. 16, 1957], No. 29099/57. Class 108(3). In a piston and cylinder type displacer unit a diaphragm 6 is attached to a pressing 5 by dowel 14 moulded in the diaphragm. fhe diaphragm 6 has a lining 7 made of butyl rubber. Specification 848,996 is referred to.
Patent GB-172815-A (GB)
Title: Improvements in or relating to packing for stuffing boxes and the like
IPC: F16J15/20
Filed: 1920-10-14
Abstract: 172,815. Hall, E. J., Hall, H. J., and Weir, J. S. C. Oct. 14, 1920. Packing, non - metallic; packing, compound metallic and non-metallic. - Packing for piston-rods, rams, &c. off the type consisting of wedgeshaped members of folded cloth enclosed in a flexible casing consists of three members a, b, b<1>, together forming a rectangle, the width of the member a being equal to the combined widths of the members b, b<1>. The member a has two bevelled surfaces engaging single bevelled surfaces on the members b, b<1>. The latter are connected at the bottom by a layer of cloth c and the whole is enclosed in a wrapping d, which may be continuous with one of the members. The cloth may consist of asbestos woven with lead, brass or other wire, or may be pure asbestos, cotton duck, hemp, or rubber fabric. Antifriction-metal nails may be driven into the upper member a.
Patent GB-1070917-A (GB)
Title: Combined sun visor and wind deflector for a motor car
IPC: B60H1/26
Filed: 1965-07-09
Abstract: 1,070,917. Visors and wind deflectors for vehicles. E. GRAU, [trading as ERICH GRAU STANZWERK FUR ELEKTROBLECHE]. July 9, 1965 [July 15, 1964], No. 29140/65. Heading B7J. An open-topped vehicle or a vehicle provided with a sunshine roof mounts a rotatable transparent coloured panel 2 which may be positioned above a part 10 of the roof so as to act as a wind deflector or be folded down within the vehicle as in Fig. 2 (not shown) to act as a sun visor. The panel, Fig. 4 (not shown), is provided with aligned side bearings 7 on a pair of arms 4, 5 provided with friction type articulated joints 6 fitted into socket members 8 fixed to the roof. The arms 4, 5 may be bendable.
Patent GB-986699-A (GB)
Title: Improvements in or relating to heat resistant plug-stoppers
Inventor: CHERRY GEORGE JOSEPH NALL
IPC: B22D41/16
Filed: 1962-07-30
Abstract: 986,699. Stoppers for ladle nozzles. LEEDS FIRECLAY CO. Ltd. July 16, 1963 [July 30, 1962], No. 29144/62. Heading F4B. A ladle nozzle stopper comprises a refractory plug end 2 attached to a metal carrier rod 4, which is sheafed by refractory sleeves 6. Joints 7 between refractory components are dry butt joints, the respective mating surfaces 8 and 9 being machined, such as by dry grinding, and possibly further shaped, such as socket/spigot profiles 10 and 11 on Fig. 2 (not shown), to obviate metal leakage.
Patent GB-700893-A (GB)
Title: Improvements in or relating to interconnecting devices for high-frequency currents
IPC: H04M7/16
Filed: 1951-12-13
Abstract: 700,893. Preventing inductive disturbance. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 13, 1951 [Dec. 16, 1950], No. 29191/51. Class 40 (4) In a rack mounting arrangement for highfrequency electrical equipment, e.g. carrier telephone equipment, in which a contact panel 19 comprising two rows of bushes or pins on a detachable assembly 3 is adjacent a similar contact panel 15 on the rack for connection by a four-pin plug 35 having aligned contact members, two adjacent pairs of contacts on each panel are used for the interconnection of a two-conductor high-frequency line and the diagonally opposite contacts are cross-connected on at least one of the panels. In this arrangement, shown schematically in Fig. 4, the magnetic fields 55, 57 arising from the interconnection of contacts 21, 23 with contacts 11, 13 are neutralized by the magnetic fields from the connection of the other pairs 65, 67 ; 61, 63. An arrangement for connecting a detachable assembly 3 which may be a channel amplifier with an adjacent assembly 5, e.g. a channel unit, including a four-wire cable connection between the two fixed contact panels having the diagonally opposite contacts interconnected only on the assembly panels is described with reference to Fig. 5 (not shown).
Patent GB-1510064-A (GB)
Title: Priority flow valve
IPC: F15B13/02
Filed: 1976-07-14
Abstract: 1510064 Valves CESSNA AIRCRAFT CO 14 July 1976 [29 Sept 1975] 29252/76 Heading F2V [Also in Division F1] In the circuit shown, a variable displacement pump 40 supplies a priority motor 46 through passages 16, 30, 18, 34 and a throttle 44, and when the pressure rise in a chamber 19 caused by the throttle 44 is great enough to overcome a spring 32 a spool 22 moves to the right and fluid passes through passages 16, 14, 36 and a throttle 50 to a secondary motor 48. The pressures from the two motors are fed through lines 42, 56 to a pump control unit and line 42 is also connected to a chamber 20 which houses the spring 32. If the motor 46 is arrested for any reason,, e.g. a piston reaching the end of its stroke, the resultant pressure rise causes a relief valve 54 to open. This results in a pressure drop across the throttle 44 and once again the spool 22 is moved to the right and the motor 48 is supplied.
Patent GB-1388193-A (GB)
Title: Driving gear for a cylinder paper making machine
IPC: D21F7/02
Filed: 1972-06-22
Abstract: 1388193 Paper-drying cylinders KYMIN OSAKEYHTIO-KYMMENE AB 22 June 1972 [24 June 1971] 29264/72 Heading F4G [Also in Division F2] Each drying cylinder 8 is driven by a spur reduction gear 10 driven by a bevel gear 11, an overload device being provided in the spur gear 10 or in the bevel gear 11 to limit the maximum torque transmitted by the spur gear 10. The overload device comprises a friction clutch normally maintained in engagement by means of a spring washer or hydraulic pressure but arranged to slip when the maximum torque is exceeded. The maximum torque may be selected for individual, or groups of, cylinders by manual adjustment either of the spring compression by means of a nut, or of the hydraulic pressure by means of a control valve. Selection of the maximum torque may be made on the basis of the torque reaction measured at 15; alternatively, a pressure control valve may be installed at 15 to select automatically the maximum torque. The friction clutch comprises a bevel gear wheel rotatable on the primary shaft of the spur gear 10, but normally frictionally engaged via a friction ring with a flanged collar keyed to the primary shaft. The spring washer bears via a further flanged collar and a friction ring on the bevel gear-wheel; an hydraulic piston bears directly on the bevel gear-wheel and is supplied via a bore in the primary shaft. Spur gears 10, bevel gears 11 and the overload clutches have a common lubricating system.
Patent GB-521193-A (GB)
Title: Improvements in or relating to joints for high pressure pipings
IPC: F02M55/02
Filed: 1938-10-10
Abstract: 521,193. Pipe joints. CLERGET. P. Oct. 10, 1938, No. 29360. Convention date. Oct. 11, 1937. [Class 99 (i)] A fuel-injection pipe which is mounted so as to allow for vibration has at each end a spherical head 8 engaging a. corresponding seat in a member 7, the bores of the pipe and seat being equal and in alignment. The pipe end is held within the socket 11 by a spring 9 and is a loose fit within the bore of the ferrule 10 which is slotted at 14 for the introduction of the pipe.
Patent GB-189961-A (GB)
Title: Improvements relating to protective devices for electric circuits
IPC: H02H3/24
Filed: 1921-11-05
Abstract: 189,961. Peck, J. S., Gittins, G. E., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 5, 1921. Cut-out arrangements particularly for a system in which a number of consumption circuits each with circuit-breakers of small breaking capacity are supplied from a main feeder having a circuit-breaker of relatively large capacity and inverse time limit characteristics, include consumption circuit-breakers having fixed time limits for overload and also no-volt coils which normally operate the circuit-breakers without time delay. The consumption circuit-breakers have at least one retaining winding which prevents the operation of the no-volt coil so long as fault current is flowing in the consumption circuit in excess of its breaker capacity. As applied to a threephase consumption circuit 6, 7, 8, interconnected current transformers 9, 10, 11 are connected to the overload relay 12 controlling the trip coils 13, 14 of the circuit-breaker, and the no-volt coil 15 is supplied from a. potential transformer 17. To prevent the no-volt coil releasing the circuitbreaker on the occurrence of a heavy fault or shortcircuit, a retaining winding 19 is associated with the no-volt winding 15 to prevent the latter from acting while heavy currents beyond the breaking capacity of the consumption circuit-breaker are flowing. Such heavy currents are dealt with by the main circuit-breaker. The no-volt coil acts at once on failure of supply. In the case of a wholly insulated supply system, two retaining windings are employed in series with the trip coils 13, 14.
Patent GB-488148-A (GB)
Title: Improvements in devices for removing plaster casts or bandages
IPC: A61F15/02
Filed: 1937-10-28
Abstract: 488,148. Plaster-bandage; cutting- apparatus. AANDEWIEL, C. J., EERHARD, J. M., and EERHARD, C., (trading as EERHARD-AANDEWIEL). Oct. 28, 1937, No. 29538. Convention date, Oct. 29, 1936. [Class 81 (ii)] [Also in Group VIII] Apparatus for cutting plaster-bandages in the removal thereof comprises a longitudinally reciprocated punch 1, Fig. 4, of U-section at its foot, the open side of the U facing towards a member 6 connecting a wedge-shaped anvil 4, adapted to be slipped under the bandage against the skin, with the apparatus casing. The punch 1 has a cutting edge which is a narrower U than the punch itself, is angled at the nose c and co-operates with a rib on the anvil. A pair of lugs 9 on its rear edges carry a guide block 8 sliding in a slot 7 in the connecting-member 6. The block has a cutting edge 10 co-operating with an edge 44 in the slot to break up and remove debris therein. The upper end of the punch is of U-section with the open side facing forwardly whereby a passage 43 for removal of debris is formed. The punch is pivotally mounted on a tappet rod 11 by a pin 32 secured within a recess in the rod and carrying a rotatable collar 35 screwed into the punch and held by pins 38. The rod 11, Fig. 3, is slidably mounted within a sleeve 12 and carries a roller 14 bearing against a cam 15 imparting a uniform outstroke and quick return against the action of a spring 16. The rod passes through a gland 29, 30, the member 29 having a guide-flat engaging a flat 31 on the rod. The cam 15 is driven through pinions 21, 22 and a worm and worm wheel 18, 19, from an electric motor 2 mounted on the gearing casing and controlled by a switch 41 in a handle 39. A second handle of peg form projects from the casing normal to the section shown. The connecting- member 6 is bolted to a band clip 24 adjustably tightened around the sleeve 12 by a nut and bolt.
Patent GB-1058633-A (GB)
Title: Improvements in or relating to wrapping machines
Inventor: LAGESSE JOSEPH HENRI ALFRED SE
IPC: B65B11/10
Filed: 1962-08-01
Abstract: 1,058,633. Wrapping-machines. TAPE ENGINEERING Ltd. July 31, 1963 [Aug. 1, 1962], No. 29544/62. Heading B8C. A machine for enclosing a roll in wrapping material includes a gauging device for measuring the diameter of the roll, a wrapping well with relatively movable parallel side walls to suit the diameter of the roll, means for feeding the roll from the gauging device into the well, means for causing the wrapping material to extend across the feed path, so that the roll will carry the wrapping material into the well closely wrapping it round the lower portion of the roll and means for completing the wrapping of the package. In one embodiment the roll is fed down an inclined ramp BB<SP>1</SP>, the lower part B being movable and is arrested in a gauging position on the fixed upper part B<SP>1</SP> by a stop lever B<SP>2</SP> pivoted on the ramp B<SP>1</SP>. The gauging device consists of a sensing plate D movable at rightangles to the ramp so as to engage the roll and measure its diameter, thus actuating a device D<SP>2</SP> which controls the setting of various parts of the machine. The wrapping well has side walls C, E one of which lies beneath and is movable with the lower edge of the ramp and the other lies beneath and is movable with a guide bracket E<SP>1</SP>. The two walls make equal and opposite horizontal movements controlled by the device D<SP>2</SP> so that their distance apart is substantially equal to the diameter of the roll, the walls C, E having flanges C<SP>2</SP>, E<SP>2</SP> to serve as guides for the wrapping material. The wrapping material is fed over the well CE by a horizontally movable carriage G having driven rollers H<SP>1</SP>, H<SP>2</SP> and a guide H<SP>6</SP> mounted thereon, the end of the guide being adjacent to a cutting device G<SP>5</SP>. When the gauging device has set the parts of the machine the rollers H<SP>1</SP>, H<SP>2</SP> are unlocked and the web H is fed across the well, one or more plungers F<SP>3</SP> preventing the web from going into the well. The amount of web fed forward is controlled by a rack H<SP>7</SP>. When the piece of wrapping material is in position across the top of the well, the stop lever B<SP>2</SP> is released and the plungers F<SP>3</SP> are lowered to allow the roll to fall into the well carrying the wrapping material with it. The roll is received by a conveyer J which moves the roll lengthwise, the upper loose ends of the wrapper coming into contact with wire guides J<SP>3</SP>, J<SP>4</SP>, Fig. 2 (not shown), which fold the ends of the wrapper over each other, adhesive tape being applied to seal the overlapping edges. In an alternative embodiment the wrapping machine is as described in Specification 1,058,632. This construction may be modified by the addition of means to move the well walls to grip the roll and web when in the wrapping position (Fig. 6, not shown).
Patent GB-381352-A (GB)
Title: Improvements in holders for price and other tickets
IPC: G09F3/18
Filed: 1931-10-26
Abstract: 381,352. Price &c. ticket holders. MACKAY, A. F., 257, Amhurst Road, Stoke Newington, London. Oct. 26, 1931, No. 29581. Addition to 356,059. [Class 73.] The ticket holder of the parent Specification is modified by the provision of screw threads on the pin or other supports C, D, Figs. 3 and 4, for engagement with screwed sockets B, Fig. 1, on the back of the frame. The frame may be made of celluloid or metal and the backs may be partially filled in, as shown at A.
Patent GB-787930-A (GB)
Title: Improvements in or relating to the stabilization of chlorine-containing polymers andpolychloro compounds
IPC: C08K5/57
Filed: 1955-10-17
Abstract: The invention comprises compounds of formula (R1)2Sn(OOC.HC=CHCOOR2)2, where R1 and R2 represent alkyl radicals, the said compounds being prepared by reacting a dialkyl tin oxide with a mono-alkyl ester of maleic acid.  Air may be blown through the reaction mixture. The compounds of the invention may be used to stabilize polyvinyl chloride and other polychloro compounds against deterioration by heat and light (see Group IV (a).  In an example maleic anhydride is dissolved in n-butanol and dibutyl tin oxide added to the ester so-formed.  Other compounds specified include dibutyl tin di-(mono-ethyl-, di-(mono-isopropyl- and di-(monoamyl-maleate)s. Specifications 664,133 and 711,145 and German Specification 867,913 are referred to.ALSO:Polyvinylchloride compositions containing dioctyl phthalate are stabilized against deterioration by light and heat by addition of 1-2 per cent of a dialkyltin di(mono-alkyl maleate) of formula (R1)2Sn(OOCCH = CHCOOR2)2, where R1 and R2 are alkyl groups.  Compounds specified are dibutyltin di (monoethyl maleate), dibutyl tin di(monoisopropyl maleate), dibutyl tin di(monobutyl maleate) and dibutyl tin di(monoamyl maleate).
Patent GB-837707-A (GB)
Title: Improvements relating to the dehydrogenation or dehydrocyclisation of non-aromatic hydrocarbons
IPC: B01J23/16
Filed: 1957-09-20
Abstract: A chromium oxide catalyst is regenerated by burning off carbonaceous deposits and oxidizing a proportion of the chromium to the hexavalent state after or preferably during the regeneration period, in the latter case using oxygen in excess of that required to remove the said deposits.  Preferably the catalyst is alumina supported, the particularly preferred composition being 5-25% chromium oxide (expressed as Cr2O3), 0.1-5% of promoting compounds (expressed as oxides), balance alumina, all percentages being by weight of total catalyst stable at 1020 DEG  F.  Promoters may be compounds, preferably oxides, of rare earths, Bi, B, Ge, Ni, Mn alkali metal; or spinels such as Co chromite Cu chromite, Zn titanate, Fe chromite (possibly as chrome ironstone).  The catalyst exemplified is 10% Cr2O3, 1% Ce2O3, 1% K2O on alumina.ALSO:Non-aromatic hydrocarbons are dehydrogenated or dehydrocyclized by contacting a feedstock consisting of or containing non-aromatic hydrocarbons with a chromium oxide catalyst to increase the olefin and/or aromatic content, the catalyst is regenerated by burning off carbonaceous deposits, a proportion of the Cr of the catalyst is oxidized to the hexavalent state after, or preferably during, regeneration (with excess oxygen) and the regenerated catalyst is re-used in further processing.  The following features are preferred: (a) the catalyst is aluminium-supported and particularly is 5.25% Cr oxide expressed as Cr2O3, 0.1-5% promoters expressed as oxides, balance alumina the percentages being calculated by weight of total catalyst stable at 1020 DEG  F., (b) the process employs a moving or fluidized bed with a cyclic movement of the catalyst between reactor and regenerator; (c) the residence time in the regenerator is at least 15 minutes; (d) the process is operated at 840-1075 DEG  F., not more than 50 p.s.i.g., and without recycle of hydrogen-containing gas produced or addition of extraneous hydrogen.  The catalyst promoters may be compounds (preferably oxides) of rare earths (e.g. Ce), Bi, B, Ge, Ni, Mn, alkali metal (e.g. K); also spinels such as chromites of Co, Cu or Fe (e.g. chrome ironstone) or zinc titanate.
Patent GB-1470157-A (GB)
Title: Electrical pickups for musical instruments
IPC: G10H3/18
Filed: 1975-07-15
Abstract: 1470157 Electromagnetic pick-ups NORLIN MUSIC Inc 15 July 1975 [9 Jan 1975] 29677/75 Heading G5J A stringed instrument is provided with a pickup comprising a pair of spaced coils 11, 12 with axes parallel to a string 14 of the instrument, a ferromagnetic polepiece 15 spanning the space between the coils, extending into each coil and having an extension 16 towards the string, and a permanent-magnet means 17, 18 having a pole face directed towards the polepiece and directing a unipolar magnetic field into the polepiece. The assembly may be mounted on a base-plate 20 and be provided with a cover 23 having an aperture 24 to allow access to an adjustable screw 16 forming the polepiece extension. Alternatively, the assembly may be mounted in a hollow extruded plastics base, Fig. 4 (not shown). The coils 11, 12, magnets 17, 18 and polepiece 15 may be elongated transversely to the strings, a screw polepiece extension 16 being provided for each string. The coils are preferably connected together in series opposition.