baber/WOPTO huggingface dataset:
Patent GB-1489032-A (GB)
Title: Dynamic tooth clutches
IPC: F16H48/30
Filed: 1976-03-24
Abstract: 1489032 Positive clutches; differential gear lock-up clutch control CLARK EQUIPMENT CO 24 March 1976 [24 March 1975] 11918/76 Headings F2C F2D and F2L A positive clutch between a member 26 (part of a differential casing as described) and a shaft 18 comprises a collar 52 axially slidable on splines on shaft 18 and provided with outer and inner rows 62, 60 of axially extending teeth (Fig. 4), a collar 80 splined to member 26 and provided with teeth 90 (Fig. 3), corresponding to teeth 62, and within collar 80 is a cam member 110 splined to collar 80 so that it has limited rotary free play relative thereto, provided with teeth 124 in spaces 130 between which teeth 60 can engage and maintained in a central angular position relative to collar 80 by spring-pressed balls 120 which engage pockets 118. When teeth 90 and 62 engage, rotary free play is possible, to the same extent as cam ring 110. To engage the clutch the collar 52 is moved axially, the teeth 60 contact teeth 124, which protrude further than teeth 90, the teeth 60 and 124 interengage so that each tooth 62 is in the centre of a gap 96 between teeth 90 and then the torque rotates cam member 110 from its centred position against the force of balls 120 and allows torque to be transmitted through the interengagement of the teeth 90 and 62. The construction thus ensures that teeth 90 and 62 are fully engaged axially before they transmit torque. The clutch is operated by fluid pressure supplied to between a non-rotating piston 140 and cylinder 144 to act in a chamber 164 against a spring 158. The piston 140 has a flange engaging a ring 138 fixed to the axially movable collar 52. Retaining rings 154 axially connect the collar 80 and the cylinder 144 whilst allowing the collar to rotate relative to it. The clutch is between a differential casing (Fig. 1, not shown) and an output shaft 18 to provide lock-up and the supply of fluid pressure to engage the clutch is controlled by a fluid circuit in response to the difference in speed between the differential casing 26 and the shaft 18 or it may be controlled by movement of a valve by an operator or by controls within a change-speed gearing, to provide lock-up in first and second speed ranges for example.
Patent GB-155792-A (GB)
Title: Improvements in the recovery of zinc by electrolysis
IPC: C25C1/16
Filed: 1920-04-29
Abstract: Before electro-deposition of zinc, chlorine is removed from the solution by means of a soluble silver salt.  In a cyclic process where roasted ore is treated with spent electrolyte containing sulphuric acid, a part of the liquid is withdrawn, preferably after zinc-dust purification, and slightly acidified by sulphuric acid. Finely-powdered silver sulphate is added, preferably in quantity sufficient to precipitate all the chlorine except 2-3 mgrs. per litre.  After agitating the mixture for about an hour, more of the zinc solution is added so as to render the liquid neutral or slightly alkaline, and agitation may be continued so as to assist the resulting coagulation of the silver chloride, which is then allowed to settle.  The supernatant liquid is passed through a filter-press, preferably of wood and of the chamber type, treated with a little zinc dust to remove any traces of silver, again filtered, and passed on to the depositing vats. Several charges can be similarly treated in the precipitation vat. The silver chloride thus collected is mixed with the residual solution and pumped to a small tank in which is also placed the chloride from the filter press.  Sulphuric acid and zinc dust are added in proportions such that all the chloride is reduced to metallic silver and that an excess of acid is present so as to dissolve all the zinc, the mixture being agitated.  The precipitate is tested for unreduced chloride by treatment with ammonia, filtration, and addition of nitric acid.  After completion of the reaction, the metal is transferred to a flat-bottomed filter and the solution removed by a vacuum pump. The silver is dried and heated in a pan with the calculated amount of sulphuric acid to 250-300 DEG  C., with stirring which is more frequent towards the end so that the sulphate is obtained as a granular mass.  This is ground in a mill with flint pebbles, for re-use in the process.
Patent GB-1026373-A (GB)
Title: Fluid control valve
IPC: B60T15/02
Filed: 1964-03-20
Abstract: 1,026,373. Valves; fluid-pressure control of brakes. BENDIX WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. March 20, 1964 [March 21, 1963], No. 11947/64. Headings F2F and F2V. A valve for use in a vehicle braking system has a casing 10 with an inlet 12, outlet 14 and an exhaust port 16, the casing housing a plunger 20 with a ring seal 22 and the plunger having a closure member 28 secured thereto by a bolt 32; a depending guide tube 34 causes a slow upward motion of the plunger to eliminate the impact of another valve closure 38 on its seat 42, and gradually release air from the spring actuator 18 connected to the outlet 14. Closures 28, 38 have seat engaging beads 35, 40, respectively. The closure 38 incorporates a skirt 46 which serves as a check valve, whilst a spacer 50 separates the two closures, the chamber between which is open to the outlet 14. The plunger 20 is spring-loaded and has an operating knob 56. In the brake release position shown, the effective area defined by the bead 40 is less than that of the seal 22 so that inlet pressure maintains the valve in the illustrated portion with the outlet 14 open to exhaust. The valve may be moved manually to connect the outlet 14 to the inlet 12; the effective area of bead 35 is the same as that of the skirt 46 so when the closure 28 is seated the pressure in the outlet 14 acts in both the skirt 46, to urge it outwardly into sealing contact with the body 10, and on the closure 28 whereby the valve is balanced. Any drop in inlet pressure below the given minimum causes the closure 28 to unseat, this pressure multiplied by the area difference between chamber 26 and 19 produces a force which balances that of the loading spring.
Patent GB-1453108-A (GB)
Title: Making glass bodies
IPC: H01B1/08
Filed: 1974-03-18
Abstract: 1453108 Glass having electrical volumeconductivity PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 March 1974 [21 March 1973] 11979/74 Heading C1M Glass having electrical volume-conductivity is produced from a reducible glass containing at least one reducible metal oxide by: grinding the glass to a powder and sieving to obtain a fraction having a grain size not more than 150 microns; heating the sieved fraction in a reducing atmosphere to give the fraction a desired surface conductivity; melting, the treated fraction and cooling the melt to form the glass. The reducing gas treatment may be with hydrogen or carbon monoxide (e.g. at 325- 450 C. for 2 hours). After the reduction the grains may be etched (e.g. using aqueous NaOH or HF). The melting may be at 500-650 C. for -¢ hour. Glasses whose use is exemplified consist of (in mole percent): (i) SiO 2  58, PbO 18, B 2 O 3  9, As 2 O 3  0À2, MgO 6, ZnO 3, Li 2 O 3À8, and Na 2 O 2; (ii) SiO 2  13, Al 2 O 3  4, CaO 38, Fe 2 O 3  9, and B 2 O 3  36.
Patent GB-1419238-A (GB)
Title: Machine for open-end spinning of textile fibres
IPC: D01H4/08
Filed: 1974-03-19
Abstract: 1419238 Open end spinners TSENTRALNY NAUCHNO-ISSLEDOVATELSKY INSTITUT KHLOPCHATOBUMAZHNOI PROMYSHLENNOSTI and PENZENSKY EXPERIMENTALNO KONSTRUKTROSKY INSTITUT PRYADILNYKH MASHIN 19 March 1974 12107/74 Heading DID An open end spinning machine comprises a rotary spindle 6 carrying a sleeve 5 and multivane wheel 8 on which is a fibre collecting disc 9, which disc has slots 14 extending away from a central opening 13, through which yarn is extracted, toward the periphery and projections 15 intermediate the slots to assist in retaining fibres on the disc, fibres being fed to the disc by a device including a feed channel 2 which conveys fibres by an air stream generated by rotation of the wheel 8. The projections 15 may have a variety of sections Fig. 10 (not shown) which are said to be suitable for different staple lengths. The slots 14 may or may not extend all the way to the periphery and different arrangements of them are illustrated in Figs. 7, 8 and 9 (not shown). Deposit of fibres may be assisted by setting up an electrostatic field between electrodes on the end of feed channel 2 and the disc 9, also holes may be provided in the part of the disc encircled by the projections. Foreign matter separates from the fibre and continues through the disc. A reinforced yarn may be produced by feeding a core of e.g. capron or metal thread through the apparatus.
Patent GB-595024-A (GB)
Title: Improvements to the manufacture of tubes for thermic exchangers
IPC: B21C37/20
Filed: 1945-05-15
Abstract: 595,024. Making tubes. SOC. ANON. DES USINES CHAUSSON. May 15, 1945, 12197. Convention date, Jan. 5, 1943. [Classes 83 (ii) and 83 (iv)] Flat ribbed tubes are made by supporting a flat tube on a mandrel and raising integral fins by pressing or rolling. In Fig. 1 a tube 1 on a mandrel 2 is passed between ribbed rolls 5, 6. The ribs may be transverse or otherwise and the mandrel may be ribbed to form internal fins during the external finning. In Fig. 5, a tube 24 on a mandrel 25 is intermittently fed through a press with tools 22, 23 of increasing depth and integral fins are formed progressively. Alternate tools may be connected in sets and be provided with rounded and sharp edges to assist the finning.
Patent GB-308912-A (GB)
Title: Improvements in grids used for sterilization of soil by steam impregnation
IPC: A01M17/00
Filed: 1928-04-26
Abstract: 308,912. Maxen, F. April 26, 1928. Treating land with steam.-A grid frame. carrying hollow tines adapted to penetrate the ground and deliver steam into the soil for the purpose of sterilizing it is composed of a number of tubes welded together at their junction to form a onepiece structure. Outer longitudinal tubes 3 and transverse tubes 4 extend-the full length and width respectively. They are cut off obliquely as indicated at 5 and welded together. The inner tubes 6 and the sides of the outer tubes are cut away as indicated at 7 and then welded. At each junction an internally screwed bush is welded at the same operation to receive the screwed end of a hollow tine 9. On the projecting bush is welded or screwed a dished baffle disc or flange 10 to compress the soil near the tine 9 and prevent upward leakage of steam. A cup-like member 11 may be welded or screwed into the grid to receive material for filtering the steam as it enters.
Patent GB-1527197-A (GB)
Title: Position transducer for machine tools and measuring machines
IPC: G01B11/00
Filed: 1977-03-23
Abstract: 1527197 Position transducer; measuring machine scale DEA DIGITAL ELECTRONIC AUTOMATION SpA 23 March 1977 [2 April 1976] 12218/77 Headings G1A and G1M A transducer arranged to measure displacements of a first part 6 with respect to a second, 1, comprises at least two photo-electric readers as 15, 16, 17 fixed on part 6 and optically coupleable to at least two photo-engraved rules 13, 14, rigidly connected to part 1 and means 18 for selectively connecting the signals from one reader to the output. The measuring machine of Fig. 1 has a bridge 8, with two carriages 6 slidably mounted on rails 4 of beams 1 and 2, allowing a working stroke of 6m. Rules 13, 14 are each 1m long and spaced by 2m. Readers 13, 14, 15 are mounted with 1m spacing on rod 12 on one carriage 6, travel of which causes them to pass in front of rule 13 or 14. Sensors 23 to 27 (proximity switches operated by a magnet or micro-switches) are disposed along rail 4 at intervals of 1m. When bridge 8 is at the left hand end of its travel, reader 17 is at the left hand end of rule 13 and is connected by means 18 to the output. As it reaches the right hand end of rule 13, means 18 connects reader 16 instead, and so on.
Patent GB-985299-A (GB)
Title: Improvements in or relating to bottle cleaning machinery
IPC: B08B9/36
Filed: 1963-03-28
Abstract: 985,299. Bottle washing machines. SEITZ-WERKE G.m.b.H. March 28, 1963 [April 7, 1962], No. 12227/63. Heading B8T. A bottle cleaning machine comprises reciprocating traction members 14 which intermittently index a conveyer 12 and a plurality of rotary, bottle engaging brushes 22 connected to reciprocating carriage members 17, 18 which traction members and brushes are driven by a common drive mechanism 30, 31, and which traction members effect an idling stroke during each bottle cleaning operation. As shown in Fig. 1 the mechanism is in its initial position; during the initial part of the stroke of the mechanism 30, 31 the brushes are introduced via guides 25 into the bottles 10 which are held in position in their containers 11 by pivotable holders 27, and the traction members 14 driven through the coupling member 33, bell crank 35, 36, guide rod 37 and rockers 39 effect a short idling stroke. When the brushes enter the bottles, the carriage member 17 engages an adjustable stop 26 and any excess motion of the relatively slidable carriage member 18 is absorbed by springs 20. As the stroke of the mechanism 30, 31 continues the brushes are retracted from the bottles, and the traction members 14 are moved sufficiently against the direction of movement of the conveyer to engage, through a lever and pivot arrangement (Fig. 4, not shown) a chain member 15. Thus during completion of the stroke the bottles are indexed by one step to align subsequent containers with the brushes at the cleaning station. Each brush is attached to the end of a spindle 21 which is rotatable through a gear and magnetic coupling mounted on the carriage member 17.
Patent GB-298654-A (GB)
Title: An improved appliance for registering bites and reproducing movements of the jaws and articulator working with this appliance with tooth gauge
IPC: A61C11/08
Filed: 1927-05-07
Abstract: 298,654. Vignale, O. R. May 7, 1927. Teeth, artificial; teeth, regulating.- Apparatus for use in making artificial dentures and in orthodontia comprises (1) a bite register, Figs. 1 and 2 similar in construction to that described in Specification 191,442 but having rearward projections k' from the chin-piece, corresponding to the lower jaw and adapted at their free ends k<3> to enter boxes m<1> attached to the main framework so that, on movement of the patient's jaw, impressions corresponding to said movements are formed in softened plastic material in the boxes m<1>; (2) an articulator, Figs. 4 and 6, the upper and lower members q, p of which are flexibly connected by springs p<1>, p<2>, and the lower member p of which is formed with projections p<3> engaging the hardened plastic material in the boxes m<1> which have been transferred from the bite register to the upper member q, so that the movements of the patient's jaw may be reproduced; and (3) a gauge, Fig. 7, comprising bars s, s<1>, s<2> arranged in the form of an adjustable equilateral triangle and troughs s<3> containing wax on which the arches of the teeth may be scribed by a pivoted wire s<10> the gauge then serving as a guide in setting up the teeth. The bite register is adjustable to the size of the patient's head and its chin-piece k with the extensions k<2> is connected to the fixed parts of the framework by links h<4>, h<6> and springs l<1>, o corresponding to the muscles controlling the natural jaw. A forked rod r<5> adjustably held in a member r - - r<1>, itself, adjustably carried by the chin-piece, is pressed into the wax bite block within the patient's mouth and is transferred therewith to the articulator, as shown in Fig. 6 The models are then fitted to the wax base plates of the bite block and are plastered to the plates q<3>, p<9> of the articulator. The upper plate q<3> of the articulator is carried by a bar q<2> hinged to the upper member q at q<1> but adapted to be locked thereto when required by a screw q<4>. The gauge, Fig. 7, is secured in the member r - - r<4> on the articulator by means of its rod s<4> which replaces the forked member r<5> after the latter, together with the bite block has been removed. The Provisional Specification describes also minor modifications of the bite register, and a modified gauge in which the wax troughs are replaced by flexible steel bands carried in slotted blocks at the corners of the triangle formed by the bars s, s<1>, s<2>.
Patent GB-558829-A (GB)
Title: Improvements in or relating to illuminating flares
IPC: F42B10/56
Filed: 1942-09-01
Abstract: 558,829. Parachute flares. SCHERMULY, C. D., SCHERMULY, A. J., and SCHERMULY, C. Sept. 1, 1942, No. 12299. [Class 9 (ii)] A multiple flare comprises two or more flare candles 6a, 7a packed in a millboard or like tube 1 with their associated parachutes 8, and separated by a wooden disc or discs 9. A primer cap 3, fired as the flare is dropped from an aircraft, ignites a delay fuze 4 which explodes a burster charge 5 and expels the candles and parachutes from the tube. Fuze cords 6, 7 leading respectively to the candles 6a, 7a are ignited, by the charge 5, and light the candles simultaneously or successively according to the lengths of the fuze cords. The candles and parachutes may be packed side by side. instead of end to end. Packing 10 may be provided around the candles.
Patent GB-1363057-A (GB)
Title: Ornament of the mobile type in combination wi'h a light and heat source
IPC: F21S10/00
Filed: 1973-03-14
Abstract: 1363057 Ornamental light H NAGEL [trading as GE-NA-GESCHENKE Gebr NAGEL KG] 14 March 1973 [1 April 1972] 12307/73 Heading F4R An ornamental light fitting has a plurality of bimetallic strips 2 with plastic, metal or glass knobs 18 surrounded by a glass globe 3. The heat given out by the candle causes the strips to sway. As the candle burns down it is pushed up against the lip 7 of a tube 6 by a spring 8. The amount of sway of the strips 2 is adjusted by turning tube 11 thus causing it to rise or fall on a helix 9. As the tube 11 rises it moves a rubber ring 17 which allows the strips to sway more. The ends of the strips 2 are held by a split ring 16.
Patent GB-1314631-A (GB)
Title: Control apparatus for a plumbing fixture
IPC: H03K17/94
Filed: 1971-04-30
Abstract: 1314631 Water supplies AMERICAN STANDARD Inc 30 April 1971 [14 May 1970] 12373/71 Heading E1X [Also in Division G1] Water supply to a wash basin BA is provided when a person PR moves within the field of view of a photocell PC 1  thereby causing a reduction in the ambient light intensity reaching the cell. The circuit for the photocell includes a capacitor C 1  from which a positivegoing pulse is produced when this drop in intensity occurs resulting in an increase in the impedance of photocell PC 1  which may be of the cadmium sulphide or selenide type. The pulse is transmitted by diode D 1  to switch flip flop FF and cause energisation of water supply control solenoid SV. When the person retires from the photocell field of view a negative going pulse via D 2  resets FF and the solenoid is deactivated. In a modification, Figs. 4-7 (not shown), a further photocell (PC 2 ) monitors the area of the wash basin itself and its circuit includes a flip-flop (FF 2 ) coupled to a NAND gate, the other input to which is from the flip flop FF, of the main monitoring device. The arrangement is such that water is supplied only if both circuits are responding, i.e. a person is present and his hands are in the area of the basin. Each photocell may be mounted at the end of an internally blackened tube so that the field of view may be accurately defined.
Patent GB-527989-A (GB)
Title: Improvements in and relating to tyres for vehicle wheels
IPC: B60B9/26
Filed: 1939-04-25
Abstract: 527,989. Moulding wheel tyres. MARTIN, J. V. April 25, 1939, No. 12408. [Class 87 (ii)] [Also in Group XXXIV] A mould, for the rubber tyre portion of a wheel comprising a continuous tread 15 suspended from pins 4 in the heel-rim 3 by integral radial webs 10 and two or more spaced wood &c. rings 16 embedded in the tread, consists of two main parts 22a, 22b and spaced web-forming plates 23 fitted with cores 24 to provide housing for the attachment pins 4. The spacing of the embedded tread-rings 16 may be effected by a metal mould-insert ; or, by means of an inflatable air-bag device.
Patent GB-608038-A (GB)
Title: Improvements in or relating to distillation processes
IPC: B01D3/42
Filed: 1945-05-17
Abstract: <PICT:0608038/III/1> <PICT:0608038/III/2> A distillation and rectification process wherein the condensate derived from the heating medium is transferred, preferably by pressure difference, from the boiler to the condenser where it is used as the cooling medium for the process vapours.  Fouling of the condenser tubes, due to hard water, is thereby avoided.  In Fig. 1, steam condensate from heater 5 of column 1 is passed, through steam trap 10 and feed preheater 3, to open condensers 13 and 12 where the vapours from the column are condensed and the condensate is re-evaporated and given off to the atmosphere.  Any condensate which is not re-evaporated passes away through pipe 20. In Fig. 2, the condenser 12a is closed from the atmosphere and may be maintained at super- or sub-atmospheric pressure so that the steam condensate re-evaporates at a temperature above or below 100 DEG  C. as desired.  The steam from the re-evaporated condensate passes off through line 21 while any excess condensate accumulates in tank 23 until it is permitted, by float valve 25, to discharge through pipe 24.  The distillation of phenols under vacuum is referred to.  Specification 174,955, [Class 32], is referred to.
Patent GB-184241-A (GB)
Title: Improvements in or relating to lubricating devices
IPC: F16N21/04
Filed: 1921-04-30
Abstract: 184,241. Morriss, F. E., and Ex-A-Gun, Ltd. April 30, 1921. Junction-pieces; couplings, disconnectible; with valves.-To secure the end of a flexible-lead of a grease-gun to a hollow axle or shaft, bolt. axle-cap, or the like provided with a lubricating duct closed by a valve, a claw-coupling member is provided so that on securing this member to a necked portion of the shaft &c., the valve, closing the duct, is opened. As shown, a shaft or bolt a has a duct m closed by a spring-controlled valve g, in a box h. fitted in a button-member e which has a neck or groove f. A coupling o has claws p, p and a loosely mounted tumbler q connected at s to a grease-gun. The claws p, p engage the neck f and a screw t simultaneously opens the valve g and fastens the coupling o to the button e. The button e may be integral with the shaft a or connected to it by a union joint, and the tumbler q may be omitted and the screw t provided with an axial duct and means for connecting it to the grease-gun.
Patent GB-1009594-A (GB)
Title: Improvements in or relating to rolling contact bearings
IPC: F16C19/20
Filed: 1964-03-25
Abstract: 1,009,594. Bearings. EISENWERKE ROTHE ERDE G.m.b.H. March 25, 1964 [March 28, 1963], No. 12621/64. Heading F2A. In a ball or roller bearing, the balls or rollers have guide elements 7 which are made of synthetic plastics material, resinous material or metal and comprise spacing members 8, Figs. 1 and 2, and guide bars 11. The synthetic plastics material may be self-lubricated or may have lubricant incorporated therein. The spacing members 8 each have hemispherical shaped recesses 9 which receive the balls &c. with clearance. The guide-bars 11, which are located with clearance between outer and inner races 1, 2, abut each other and have rounded surfaces 12 to receive the balls &c. with clearance. The wall between the two recesses 9 of each member 8 has a grease aperture 10 therein. In other embodiments, spacing members 15, Fig. 3, are shaped to receive rollers 13 therein and the respective guide-bars 16 again abut each other; the elements 7 have metallic reinforcing inserts therein; guide-bars 19, 20, Fig. 5, have different widths; guide-bars 19, 21, Fig. 6, are offset; an outer guide-bar 23, Fig. 7, is longer than an inner guide-bar 22; and an inner guide-bar 27, Fig. 8, does not extend as far as outer guide-bars 26.