baber/WOPTO huggingface dataset:
Patent GB-507826-A (GB)
Title: Improvements in or relating to audio frequency control systems for use in connectionwith sound pick-up systems and the like
IPC: H04R3/00
Filed: 1938-10-07
Abstract: 507,826. Transmission systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 7, 1938, No. 29158. Convention date, Oct. 7, 1937. [Class 40 (iv)] A transmission system, e.g. for. broadcasting, sound-recording or public address, involving amplifiers which operate more satisfactorily if the maximum peaks in their input circuits are in a particular direction, includes a switching device which is controlled by the voice &c. currents and keeps the maximum peaks always in the same direction in the parts of the system beyond it. As shown, a sample of the signals is taken at 7, amplified at 9 and passed on to rectifiers 19, 20 which act with triode valves 24, 25 to compare the positive and negative peak values and cause the operation or release of a relay 27 when one or other direction predominates. A relay 29 which is de-energized during signals prevents any immediate effect but the next instant of silence energizes 29 and a further relay 31 then reverse the direction of the input to transformer 32 on the main transmission path in accordance with the condition of 27. Coloured tell-tale lamps show the condition of relay 31.
Patent GB-205694-A (GB)
Title: Improvements in lids for saucepans and like utensils
IPC: A47J36/08
Filed: 1922-10-26
Abstract: 205,694. Gray, M. J. Oct. 26, 1922. Lids.-A saucepan lid that can be used as a strainer is perforated over substantially half its area, and the perforations can be masked wholly or partly by a semicircular plate C pivoted beneath the lid and rotated by a knob D on the upper side.
Patent GB-1527989-A (GB)
Title: 4-dihalovinyl-3,3-dimethylbutyrolactones and their use in the production of insecticides
IPC: C07C253/00
Filed: 1975-07-11
Abstract: 1527989 2-Dihalovinyl-3,3-dimethyl lactones IMPERIAL CHEMICAL INDUSTRIES Ltd 18 June 1976 [11 July 1975] 29253/75 Heading C2C 2 - Dihalovinyl - 3,3 - dimethyl lactones of general formula wherein each Y is Cl or Br; R is H, cyano, carboxy or an optionally substituted alkyl group. The compounds are prepared by reacting a 1,1-dihalo-4-methylpenta-1,3-diene with an acid RCH 2 CO 2 H in the presence of a salt of a metal in one of its higher valency states. The lactones may be converted to cyclopropane carboxylic esters, of use as insecticides, of formula by treating the lactone with an inorganic acid chloride or bromide, reacting the product with an alcohol R<SP>1</SP>OH where R<SP>1</SP> is an optionally substituted alkyl group, and finally treating with a base.
Patent GB-632771-A (GB)
Title: Improvements in and relating to a grinding wheel truing device for a grinding machine, more especially for a thread grinding machine
IPC: B24B53/08
Filed: 1947-11-03
Abstract: 632,771. Trueing grinding wheels. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Nov. 3, 1947, No. 29267. Convention date, Nov. 13, 1946. [Class 60] In a trueing device, especially for a screwthread grinding-wheel, a carriage 27 movable in a direction parallel to the axis of the wheel supports two diamond-holder slides 10, 11 movable in a direction perpendicular to the axis and operatively connected by a common control member 14 which reciprocates the slides in opposite directions to one another while a wedge 16 secured to one of the slides bears against a fixed roller 17<SP>1</SP> to displace the carriage. The member 14 is in the form of a pinion provided with a hand lever 58 and meshes with two racks 12, 13 secured to the slides. The carriage 27 is spring-loaded to maintain contact between the wedge and roller, and slides on a guideway 29 which is secured to a cylindrically-shaped base to permit the device to be tilted about a horizontal axis perpendicular to the axis of the grinding-wheel. The support for the roller 17<SP>1</SP> passes through a slot in the carriage 27 and is secured to the guideway 29. A sealed casing 19 surrounds the device and is provided with stops 60, 60<SP>1</SP> to limit the movement of the slides 10, 11. For truncated threads, the periphery of the wheel is treated with a diamond 62 which is swung about a shaft 65 by a handle 64, the diamond being set at the desired distance from the wheel by a screw 67. The wedge is replaceable.
Patent GB-636172-A (GB)
Title: Improvements in or relating to the refining of biological preparations and the like
IPC: B01J47/04
Filed: 1945-11-05
Abstract: Biological or other acid sensitive preparations containing not more than 1 per cent of a deleterious electrolyte are refined by passage through a duplex ion exchanger comprising two sets of salt activated resin particles, one set serving as an anion and the other as a cation exchanger, so that the said electrolyte is replaced by a harmless or beneficial salt.  According to the example, a mixture of 52 parts by volume of a cation exchange resin derived from a polyhydric phenol and formaldehyde and 48 parts by volume of an anion exchange resin derived from an aromatic or aliphatic amine and formaldehyde, both previously activated with sodium chloride solution, placed in a suitable column provides such an ion exchanger which, when spent, is regenerated by the passage therethrough of a substantially dissociated salt solution such as sodium chloride solution. Deleterious electrolyte in excess of 1 per cent is first removed by dialysis.ALSO:Biological or other acid sensitive preparations containing not more than 1 per cent of a deleterious electrolyte are refined by passage through a duplex ion exchanger comprising two sets of salt activated resin particles, one set serving as an anion and the other as a cation exchanger, so that the said electrolyte is replaced by a harmless or beneficial salt. According to the example, a mixture of 52 parts by volume of a cation exchange resin derived from a polyhydric phenol and formaldehyde and 48 parts by volume of an anion exchange resin derived from an aromatic or aliphatic amine and formaldehyde, both previously activated with sodium chloride solution, placed in a suitable column provides such an ion exchange which, when spent, is regenerated by the passage therethrough of a substantially dissociated salt solution such as sodium chloride solution. Deleterious electrolyte in excess of 1 per cent is first removed by dialysis.
Patent GB-409215-A (GB)
Title: Improvements in or relating to ammunition supplying devices for pairs of guns mounted in turrets or the like
IPC: F41A9/10
Filed: 1933-10-23
Abstract: 409,215. Ammunition-supplying devices for ordnance. SCHNEIDER ET CIE, 42, Rue d'Anjou, and COMPAGNIE DES FORGES ET ACIERIES DE LA MARINE ET D'HOMECOURT, 12, Rue de La Rochefoucauld, both in Paris. Oct. 23, 1933, No. 29341. Convention date, Aug. 19. Addition to 404,878. [Class 92 (i).] Relates to means as described in the parent Specification for hoisting and supplying ammunition to a pair of turret guns comprising a fixed hoist 15, Fig. 14, co-axial with the turret through which fixed ammunition is raised into a container C having trunnions 26 which, by rotation of the container support 19, can be brought parallel to the gun trunnions for tilting the container to suit the gun elevation. According to the present invention, the hoist and container are modified to supply separate projectiles and powder charges to waiting trays 49, 50 on the gun cradle 5, and the rear portions 491, 501 of these trays are adapted to swing laterally in stages so that, first the projectiles, Fig. 12, and then the charges, Fig. 13, are brought behind the gun breech and rammed into the gun. The containers have four compartments as shown in Fig. 7, and the hoist, preferably of ratchet form, forces two projectiles into compartments 21 and two charges into compartments 22 against the action of springs in casings 28, 36, which springs react to force the ammunition into the waiting trays against buffers 46, 47 when the retaining catches 33, 41 are released on swinging the container into the position shown in Fig. 14. The laterally tilting portions 491, 50<1> of the waiting trays are mounted on an arm 51 which can be swung manually by a handle 58 from a position in line with the fixed trays 49, 50 to the successive positions shown in Figs. 12 and 13. In swinging to the position shown in Fig. 12, a cam 56 depresses a spring- actuated rammer 69 into position for ramming the projectile the arm being then locked in position by a catch 65 released by a cam 71 and rod 73 as the rammer swings up to inoperative position. Further movement of the handle 58 brings the powder charge into position for being rammed by hand. A catch 62 controlled by gripping the handle 58 serves to lock the arm 51 in its extreme positions.
Patent GB-264633-A (GB)
Title: Improvements in apparatus for cooling granular, powdered and like materials
IPC: F28C3/18
Filed: 1925-11-20
Abstract: 264,633. Uno Co., Ltd., and Benkert, P. B. Nov. 20, 1925. Cooling coffee.-Apparatus for cooling granular or powdered materials, particularly coffee berries after roasting, comprises a rotary drum provided with internal helical or inclined ribs adapted to disperse the material through a current of cooling- air drawn or forced through the drum by a fan, the material being fed into and discharged from the drum at the same end through which the cooling-air enters. The cooling-drum 6 is mounted in a frame supporting at the top a roasting-drum 3, from which the hot coffee is delivered by a shoot 5 to a hopper or hinged door 17 in a fixed wall forming the end of the cooling-drum. The ribs 7 on the drum wall are adapted to convey the material to a front delivery door 26, while the air current tends to draw the material to the opposite end, where a gauze partition 35 arrests all but the husk or "flight" of the coffee berries. The fan 20 is preferably arranged on the drum axis and is belt driven. The drum 6 may be provided with a grooved ring 9 for belt drive, but is preferably driven by a worm wheel gearing with a vertical shaft 28 fitted with a belt pulley 30 at the bottom. The front end of the drum is supported by a spider frame 8, and fits within a fixed end spider frame attached by its boss 14 to a cross frame member serving as a bearing for the drum shaft; the fixed spider frame is covered with perforated material. The drum at the opposite end fits over the end of the annular casing 18 of the fan this casing being continued by a rectangular casing 19 of millboard or the like having an inclined end wall 36 to arrest the " flight." The air may be blown through the drum, or the air trunk 18 may be connected with the inlet of a centrifugal fan. The drum is rotated at a low speed and the fan at a relatively high speed, and the clutch is provided so that the fan may be stopped at the end of the cooling operation, the drum continuing to rotate so that the blades deliver the cooled material to the discharge door. The longitudinal wall of the drum may be perforated, and the drum may be of polygonal form.
Patent GB-1388448-A (GB)
Title: Wiper devices for two adjacent headlamps
IPC: B60S1/60
Filed: 1972-06-23
Abstract: 1388448 Wiping systems ROBERT BOSCH GmbH 23 June 1972 [28 June 1971 16 Feb 1972] 29453/72 Heading A4F A pair of closely adjacent screens 11, 12 or lens covers of adjacent head-lamps on a motor vehicle are cleaned by a wiper device comprising a pair of wiper arms 16, 17 which are mounted on a common drive shaft 15 arranged between the screens but remote from the plane of symmetry thereof, the wiper arms 16, 17 supporting wiper blades 20, 21 for engaging the screens 11, 12. The shaft 15 may be oscillated through gearing (14') Fig. 1 (not shown), by a drive motor 14 and the wiper blades 20, 21 which may be urged by resilience of the wiper arms 16, 17 into engagement with the screens may be curved as shown to coincide with the edges of the screens when in their parked position or may be flexible so as to be otherwise straight but bent by the action of stops (124, 125) Fig. 4 (not shown), extending from the edges of the screens when each wiper blade is in one or both of its extreme oscillatory positions relative to the associated screen.
Patent GB-520041-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/02
Filed: 1938-10-11
Abstract: 520,041. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and GIBSON, W. T. Oct. 11, 1938, No. 29459. [Class 39 (i)] An electron discharge device comprises two or more grid electrodes, substantial portions of which are aligned with one another with respect to the electron stream, while the remaining portions are out of effective alignment. Metal ribbon may be added to, or substituted for, a few of the turns of one of the grids, such as the screening grid of a valve, which comprises control and suppressor grids. An oscillating circuit may be connected between the control grid and the screen grid, and the electron stream is modulated by the suppressor grid.
Patent GB-243537-A (GB)
Title: Improved electrolyte for accumulators
IPC: H01M10/08
Filed: 1924-12-09
Abstract: 243,537. Williams, V. L., and Williams, L. L. Dec. 9, 1924. Electrolytes.-An electrolyte for storage batteries consists of a mixture of 80 gallons sulphuric acid S.G. 1.200, 20 lbs. sulphate of soda, 10 lbs. sulphate of magnesia, and 10 lbs. of ammonia. The mixture also serves to remove sulphate from the electrodes. Specifications 3107/82, 8855/87, 15754/87, 19301/96, 22044/97, 172,679, and 226,982 are referred to.
Patent GB-410804-A (GB)
Title: Improvements in the production of metal articles having anti-frictional surfaces
IPC: F16F1/20
Filed: 1932-10-22
Abstract: A self-lubricating leaf-spring plate, or plates, has a firmly-adherent coating of a soft metal or soft metal alloy intimately united therewith upon a surface or surfaces of the plate exposed to rubbing action.  The surfaces may first be amalgamated for example by immersion in a solution of a mercury salt which may comprise amounts up to 5 per cent of mercuric chloride, and up to 25 per cent of zinc chloride, the rest being water.  Ammonium chloride in amounts up to 10 per cent may be added.  A preferred solution is 2 per cent mercuric chloride, and 15 per cent zinc chloride, with or without 5 per cent ammonium chloride.  In order to coat the plate with a lead or other film it is then immersed in a bath of molten lead or lead alloy, for example an alloy of lead or bismuth, or in any other soft metal or soft metal alloy, with or without a previous washing operation. The coating may be smoothed by polishing or buffing.  Amalgamation of those surfaces where the metallic coating is not required may be prevented for example by coating them with varnish, lacquer &c. According to the Provisional Specification, (1) the spring plates may be of stainless steel, (2) the plates may be amalgamated with an acid solution of a mercury salt, and (3) the metallic coating may be applied by electro-deposition.
Patent GB-187996-A (GB)
IPC: G01L19/08
Filed: 1922-10-30
Abstract: 187,996. Kalt, H. Oct. 31, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Indicating difference of readings.-The instrument is fitted with a second hand or pointer in addition to the usual hand, such pointer moving over a separate scale and being connected to the indicating mechanism by a coupling by means of which the pointer may be disconnected from the mechanism, zeroized, and connected again to move with the mechanism and indicate a difference of pressure. The gauge may be used with a receiver from which fluid is being withdrawn, the fall of pressure corresponding to fluid consumption. A Bourdon tube 2 is coupled to a sector 4 meshing with a wheel 5 in one with a wheel 6 fixed to the sleeve 7 carrying the usual pointer 19. The wheel 6 is connected through multiplying gear 8, 9 with a wheel 11 loose on the spindle 13 but normally connected to it by a spring- pressed friction clutch 12. The spindle 13 carries the additional pointer 18 at one end, and at the other end is fitted with a button 17 by means of which the clutch is released and the pointer 18 adjusted to zero. In use, before drawing off fluid from the receiver, the hand 18 is set to zero, and after the operation, the reading of the pointer 18 gives on an enlarged scale the difference between the pressures indicated by the pointer 19 before and after fluid is drawn off.
Patent GB-266793-A (GB)
Title: Improvements in or relating to apparatus for transferring freight
IPC: B66C17/20
Filed: 1925-11-24
Abstract: 266,793. Fitch, B. r. Nov. 24, 1925. Handling transferable vehicle bodies; platforms. -A station for handling freight loaded in transferable vehicle bodies 13 comprises a subway 30 for motor vehicles extending transversely beneath a platform 10, and a travelling crane 20 for transferring the bodies to and from the platform through the well 35. As shown, railway tracks 16, 17 run alongside the platform, which is extended laterally to provide spaces 14 and 15 for transferring goods between trains and waiting bodies. The crane is at a height which permits of moving one body 13 over another. The subway 30 is wider than the approach roads to provide room for standing vehicles. The well 35 extends across the width of the subway, so that the crane may be used for transferring bodies from one waiting vehicle to another. The subway may cross the centre of the station platform, and a station may be provided with several subways. Specification 266,792 is referred to.
Patent GB-491631-A (GB)
Title: Improvements in or relating to brakes
IPC: B60T17/18
Filed: 1937-10-30
Abstract: 491,631. Fluid - pressure brakes. BENDIX AVIATION CORPORATION. Oct. 30, 1937, No. 29747. Convention date, Oct. 30, 1936. [Class 103 (i)] The pedal or other actuating member of a fluid-pressure brake system is adapted to be connected to a mechanical brake system by a coupling which is disengaged by the fluidpressure so that the mechanical system is operated by the pedal only if the fluid-pressure system is inoperative, - alternative operating means such as a hand lever being also provided for the mechanical system. A hydraulic brake system for vehicles comprises a master-cylinder 10 operated by a pedal 14 and connected by pipes 22, 20 to front and rear wheel brake operating cylinders 24. The rear brakes can also be operated mechanically by levers 34 and links 38, the levers being connected by cables 50 and an equalizing lever 48 to a cross-shaft 40. The pedal is adapted to be connected to an arm 62 on the cross-shaft by a link 80 having a longitudinal recess 84 in which is normally received a cylindrical coupling member 78 slidable transversely in the forked end of the arm 62. The member 78 is connected by a rod 96 passing through a slot 86 in the link, to a piston 70 in a cylinder integral with the arm 62 and connected by a pipe 76 to the mastercylinder 10. Normally when the pedal is depressed the presssure produced in the hydraulic system acting on the piston 70, disengages the coupling member 78 from the link 80 so that the mechanical system is not operated but should the fluid-pressure system fail the member 78 is returned by a spring 90 and engages a toothed part 88 on the link thus coupling the pedal immediately to the mechanical system. If the fluid-pressure system should be defective before the pedal is depressed, the member 78 remains in the recess 84 the end of which it engages to operate the mechanical system when the pedal is operated. This system can also be operated by a hand lever 58 which has a lost-motion connection 54 with an arm 52 of the rock-shaft 40.
Patent GB-741532-A (GB)
Title: Apparatus for continuously milling plastics
IPC: B29C48/435
Filed: 1953-10-28
Abstract: 741,532. Mixing appliances. UNION CARBIDE & CARBON CORPORATION. Oct. 28, 1953 [Dec. 3, 1952], No. 29839/53. Addition to 699,940. Class 86. [Also in Group V] Apparatus for milling and extruding plastics consists of a closed chamber 15, Fig. 2, of figureeight cross section formed by a pair of intersecting cylindrical bores 12, 14 in a housing 10, each bore containing one of a pair of intermeshing screw threaded rotors 22, 24, the rotors being driven' at different speeds and directions, the pitch or lead of the threads on the slower rotor 24 being a whole-number multiple of the pitch or lead of the threads on the faster rotor 22, the faster rotor being driven at that same multiple of the speed of the slower rotor. The material passes from an inlet 16, Fig. 1, to an outlet 17 which has an extrusion die 18. Passages 20 in the housing and bores 30, 32 in the rotors are provided for heating or cooling medium.
Patent GB-1196465-A (GB)
Title: Method of producing a Silencer for Gaseous Flow
Inventor: PAILLET CLAUDE ROGER
IPC: F01N13/18
Filed: 1967-06-28
Abstract: 1,196,465. Silencers for gaseous flow. C.R. PAILLET. June 28, 1967 [June 28, 1966], No.29842/67. Heading F1B. A silencer comprises a number of aerofoil shaped elements 7, 8 forced in a duct 11, the elements forming Venturi shaped passages therebetween. An elongated element 1, Fig. 1, is formed and cut into lengths to form the aerofoil elements, each element having a case 3 of sound absorbing materials such as glass fibre and a cover of metal sheet or plastic material which may be perforated. Holes 5 are formed through the case 3 for the reception of rods which secure the elements in the duct. The elements may be arranged in a plurality of adjacent rows as in Fig.2 or two rows of elements (9), (10) Fig. 3 (not shown) may be spaced apart to form a resonance chamber therebetween. Half-section elements 6, 6<SP>1</SP>, to fit against the sides of the sides of the duct are formed by dividing the element 1 along the centre line.
Patent GB-866318-A (GB)
Title: Apparatus for discharging material from circular containers having a central opening
Inventor: SMITH DOUGLAS EDWARD
IPC: B65G65/22
Filed: 1958-09-18
Abstract: 866,318. Screw conveyers. NEW CONVEYOR CO. Ltd. Sept. 17, 1959 [Sept. 18, 1958], No. 29860/58. Class 78 (1). Material is discharged from a circular container 4, which has a central aperture in its base and is mounted rotatably on a wheeled carriage 5, by running the carriage into position below one or more screw conveyers 12 mounted below a vertically-movable cross - head 7 mounted on a fixed framework 6 and then starting the motors 11, 14 for lowering the crosshead and rotating the screws, respectively, and the motor for rotating the container. Each screw is of gradually increasing diameter towards the centre of the crosshead. A scraper 15, Fig. 3, adjacent the outer end of each screw, engages the inner surface of the container and a toothed plough 16 disposed at one side of each screw penetrates the material as the container rotates.
Patent GB-1190581-A (GB)
Title: Improvements relating to Electrochemical Devices and Circuits Including such Devices.
Inventor: KIRYLUK WLODZIMIERZ
IPC: H04B1/16
Filed: 1966-07-04
Abstract: 1,190,581. Electrolytic colormeters. INDUSTRIAL INSTRUMENTS Ltd. July 3, 1967 [July 4, 1966], No.29981/66. Heading G1Q. An electrolytic colormeter cell consists of a cathode of a metal, e. g. silver, transportable through the electrolyte and an anode of a valve metal, e.g. tantalum, niobium, aluminium or titanium, pre-plated with the cathode metal. Preferably the cathode is constituted by the interior of the cell casing. In use, when the anode has been completely deplated the valve metal oxidizes and the anode-cathode resistance increases substantially. This resistance change may be employed to operate an indicator or a switch.
Patent GB-461096-A (GB)
Title: Ball bearing
IPC: F16C19/12
Filed: 1935-10-31
Abstract: 461,096. Ball bearings. PARRY, H. L. Oct. 31, 1935, No. 30025. [Class 12 (i)] In a ball bearing suitable for use ir gyroscopes, a single ball 10 is located be tween conical recesses 3, 8, in a hardenec cup 2 and in a hard ened plug 6, secured to the relatively mov able parts, such as a gimbal ring 1 anc standard 5. The cir cles in which the recesses 3, 8 intersect the cup base 1 and the end face of the plug are of small diameter than the dimensions of these faces. The end of the plug enters the cup with small clearance so as to prevent displacement of the ball 10 when shocks occur. British Specifications 24945/98, [Class 12], and 132,401, [Class 12 (i)], and U.S.A. Specification 1,909,761 are referred to.