baber/WOPTO huggingface dataset:
Patent GB-1038011-A (GB)
Title: Improvements in or relating to fractional horse-power two-phase or multi-phase dynamo-electric machines
IPC: H02K5/08
Filed: 1963-07-08
Abstract: 1,038,011. Dynamo-electric machines. A. KALTENBACH and E. HOFFMEISTER. July 8, 1963 [July 9, 1962; May 30, 1963], No. 27024/63. Heading H2A. In a two- or multi-phase F.H.P. dynamoelectric machine, e.g. a dental handpiece motor or a generator, having arranged in slots in a laminated stator core 7 rod-like stator winding conductors 8, the conductors of each phase are connected together in groups at both ends by connecting parts 9 ... 11 extending about the stator axis, the conductors and the stator core radially outer surface are so synthetic plastic, e.g. cast resin embedded that only the stator base and those parts for connection to a current source are free of the embedding material 12, and the connecting parts at one end are arranged for connection to the source by resiliently mounted connecting pins 14 carried by a closure cover 3. In the motor shown, the rotor 5 is of either the squirrel-cage or permanent magnet type, and the three-phase source is fed through a cable 13, springs 15, and the pins 14, to three contact segments 11 whence the current flows through three groups of the uninsulated (L.V.) conductors 8 to respective short-circuit rings 9 and back through other conductors 8 to contact segments 10 which are short-circuited by the cover 3 to form the star point; an alternative cover 3 provides a delta connection. The slots may be closed or semi-open, and contain more than one layer of conductors 8 in which case their individual cross-sections are supplementary to fill the slot. For V.H.F. operation the core 7 may be of ferrite.
Patent GB-616727-A (GB)
Title: Improvements relating to agricultural implements
IPC: A01B59/042
Filed: 1946-09-10
Abstract: 616,727. Agricultural implements. BURROWS, W. Sept. 10, 1946. Nos. 27097/46 and 9537/47. [Class 6 (i)] A device 'for attaching tools to a tractor comprises a transverse draw-bar 20 adapted to be rigidly attached behind the tractor, combined with a tool-carrying bar 28, the front end of which may be attached to the draw-bar at one of various points along the latter, the tool-bar being stayed against both vertical and horizontal displacement. The device is shown attached to a tractor having two wheels 27 mounted on an axle 11 passing through a housing 10. A handle 15 extends rearwardly from a plate 14 bolted on the housing 10, and carries a lug 17 to which is bolted a vertical plate 18. The transverse draw-bar 20 is welded to the plate and carries a strip 21 which extends forwardly to a towing hitch 12 below the centre of the tractor. The transverse bar is'additionally braced by a longitudinal member 23a and is provided with a series of holes 32 which enable a longitudinal tool-bar 28 to be attached to the draw-bar at various positions along its length. An adjustable system of stays 50, 52, 57, prevents displacement of the tool-bar from any one of its adjusted positions. Cultivating tools 43 and ridging tools 40 are mounted on the tool-bar which may also carry a depth-regulating wheel 33 on which a scraper is provided. A slot 66 in the plate 18 permits the attachment of tools such as a plough or potato-dibbler (not shown) to the draw-bar on the centre line of the draw-bar.
Patent GB-1384017-A (GB)
Title: Devices and processes for testing compressible materials
IPC: G01N23/10
Filed: 1972-06-09
Abstract: 1384017 Testing compressible materials AUSTRIA TABAKWERKE AG 9 June 1972 [11 June 1971] 27102/72 Heading G1A A device for determining the density of compressible materials e.g. tobacco comprising a source of ionizing radiation 2 at least one detector 3, processing electronics 6, batteries 7, and a recording instrument 8 is designed so that on placing it on the compressible material one of its surfaces 1 presses into the material and the detector(s) only receives radiation that has passed through material whose compression is uniform. The source and detector(s) may be situated on one side of the surface Figs. 1 and 2 (not shown), thereby utilizing reflected radiation, or, the source 2 may be mounted on a needle 4 within a retractable protective pipe 5 which slides inwardly against the action of a spring when placed on the material thereby utilizing radiation that has passed through a conical portion of the material. The radiation is received by the detectors 3 arranged concentrically about the needle 4. The surface 1 may also contain means for measuring the moisture content and/or the temperature of the material. An apparatus Figs. 5 and 6 (not shown) is disclosed comprising a container for the compressible material and means for moving the device vertically into and out of the container.
Patent GB-256564-A (GB)
Title: Improvements in railway car couplers
IPC: B61G3/04
Filed: 1925-10-29
Abstract: 256,564. McConway & Torley Co., (Assignees of McConway, W.). Aug. 7, 1925, [Convention date]. Couplings, automatic.-In a coupling of the pivoted knuckle type such as is described in Specification 185,657, the lock 4 and lock lifter 6 are connected by a pin 8 and slot 7, Fig. 1, so as to be capable of relative sliding movements and the lock has a lug 24, preferably seated on one side of the lock and rearwardly of the tail 5 of the knuckle, adapted to seat in a recess 25 in the tail of the knuckle and thereby support the lock in unlocked position while the knuckle is closed. The lifter 6 has a shoulder 16 adapted to co-operate with a portion 17 of the coupler head to prevent creeping of the look. The slot 7 in the lock lifter is inclined so that in raising the lock by the lock lifter the latter is moved inwardly and upwardly of the lock and the projection 16 is withdrawn from under the portion 17 of the coupler head to permit the lock to be raised by the pin 8. When the lock is clear of the knuckle tail 5 it swings over so that a projection 24 engages a tapering recess 25, Fig. 2, on the knuckle tail, this being the lock set position of the coupling and in which the knuckle is free to open. In opening, the recess 25 guides the projection 24 off the knuckle tail so that the base of the lock drops on to the knuckle tail and the lock is brought into vertical alignment ready for the next coupling operation. The end 19 of the lock lifter projects from the lock and is adapted to strike the short arm 21 of the knuckle thrower 15 when the lock is raised into its extreme vertical position. The pin 8 has a bent end which is turned round after insertion in the lock so that displacement is prevented by a portion of the lock.
Patent GB-687649-A (GB)
Title: Improvements in machines for the spreading of artificial fertilizer, insecticides and other like materials
IPC: A01C15/00
Filed: 1951-11-20
Abstract: 687,649. Fertilizer distributers. AKTIESELSKABET GYRO, SKIVE JERNSTOBERI & MASKINFABRIK. Nov. 20, 1951 [Dec. 8, 1950], No. 27258/51. Class 6(i) [Also in Group XXIV] In a machine for spreading artificial fertilizer and insecticides provided with a hopper 14 supported by wheels 15, and mechanically operated conveying and spreading means, a coupling arrangement comprises a primary element 5 non-rotatably mounted on a hub 1 of the wheel 15 and provided with an annular portion with inner teeth 12, a secondary element 4 mounted for free rotation relative to the element 5 and serving as a driving member for the conveying and spreading means and a coupling arm 6 mounted on the element 4 for rotation on a pin 7 and provided with a roller 9 which engages the teeth 12. A spring 11 urges the arm 6 so that the roller engages the teeth 12 to allow the wheel 15 to drive the conveying and spreading means. A ratchet wheel 21 is rotatably mounted on the member 5 and co-operates with a pawl 10. A pin 22 on the ratchet co-operates with a projection 18 on the coupling arm 6. To disengage the drive the pawl 10 is brought into engagement with the ratchet 21. The pin 22 engages the projection 18 and causes the roller 9 to be raised from the teeth 12 disconnecting the element 4 from the element 5.
Patent GB-500499-A (GB)
Title: Improvements in supporting brackets for shower or spray devices
IPC: E03C1/06
Filed: 1937-10-07
Abstract: 500,499. Shower baths ; brackets. CONKLIN, J. E. Oct. 7, 1937, No. 27280. [Class 26] [Also in Group XIV] A supporting bracket for a rubber-hose shower, including a metallic spray-head 4 having a connection with the hose 3 at its outer end, comprises a rubber suction cup base 8, Fig. 2 and a metallic bracket arm 5 having a lower portion 6c, 6d embracing the hose and extending into a socket 7 in the base, an intermediate hose supporting portion 6b, 6a, of goose-neck shape and an outer U-shaped end 6<1> adapted to engage the hose near the spray head 4. The bracket 5 is made from metal wire which may be bent and will retain its bent formation so that the position and direction of the spray head 4 may be adjusted, and is formed as a loop crossed at 6b, Fig. 5 and again at 6d. The ends 6d are thrust through a tight circular socket in the rubber member 7, so that the bracket may be swung horizontally and will retain its adjusted position.
Patent GB-914418-A (GB)
Title: Polymers of n-vinyl-carbazole
IPC: C08F26/12
Filed: 1961-07-28
Abstract: Linear head-to-tail homopolymers of N-vinyl carbazole, which are heat stable at 250 DEG C. and which have an X-ray crystallinity of 35 to 50% are made by polymerizing N-vinyl-carbazole in the presence of a catalyst comprising a compound of the general formula MeRmXn in which Me is a polyvalent metal atom (with a valency of 2 or higher) having an electronegativity lower than 1,8 in the Pauling scale and an ionic radius lower than 0,85 , X is a halogen, R is an organic radical, and n and m are 1 or a higher number, and the sum n+m corresponds to the valency of Me.  The polymerization is preferably effected in an aromatic or aliphatic hydrocarbon.  Preferred polyvalent metal atoms are aluminium, tetravalent titanium, tetravalent tin, tetravalent and pentavalent vanadium, trivalent chromium, and trivalent iron. Specified catalyst compounds are aluminium monoethyl dichloride, aluminium diethyl monochloride, aluminium monoethyl dibromide, aluminium diethyl monobromide, tin diacetate dichloride, titanium dichloride, titanium diacetate, titanium di-n-propylate dichloride, and iron monochloride diacetate.  The polymer may be recovered from the polymerization medium by the addition of alcohol.  The polymer may be fractionated by solvent extraction. It may also be made into fibres, films, and shaped articles.
Patent GB-158652-A (GB)
Title: Improvements in and connected with magneto electric machines
IPC: F02P5/02
Filed: 1919-11-07
Abstract: 158,652. North, R. B., and Allen, A. M. Nov. 7, 1919. Magneto - electric machines. - In magnetos fitted with adjustable pole-pieces directly coupled to the adjustable element of the interrupter, a coupling-ring having lugs which move in segmental slots in the fixed bracket plate is provided to limit the adjustment. The adjustable pole-pieces g are secured to the flange n of the ring o mounted in the part p of the casing a and to the coupling- ring h by means of ribs l fitting in grooves in the pole-pieces and screws m. The lugs j extend to the exterior of the bracket plate e, the neck portions j<1> being in the slots s which limit the adjustment, and are secured to the switch-housing t by screws or studs v, a boss u formed on the plate e carrying the housing t.
Patent GB-418784-A (GB)
Title: Improvements in stoppers to prevent the refilling of bottles and the like
IPC: B65D49/04
Filed: 1933-10-05
Abstract: 418,784. Non - refillable bottles. DIGGS, W., and MACDEVITT, C. E., 543, Calle Peru, Buenos Aires. Oct. 5, 1933, No. 27464. [Class 125 (i).] A stopper for a non-refillable bottle comprises a body 1, a head piece 5, and a measuring chamber 3 therebetween; also, a valve-member 8 which is slidably mounted in guide channels and provided with upper and lower bores 10, 12 having ports 11, 13 for permitting passage of liquid from the bottle to the chamber and from the chamber to the discharge port. An auxiliary valve 14 is slidably mounted in the lower bore to prevent passage of liquid through the ports in the lower bore from the measuring chamber into the bottle when the stopper is in the vertical position. A shoulder 9 in the valve-member and another 17<a> on the cap member limit the movements of the valve. A partition is provided between the upper and lower bores of the valve-member, and a ring member 15 is provided in the lower bore to limit the movements of the auxiliary valve.
Patent GB-839871-A (GB)
Title: Improvements in or relating to apparatus for the upsetting by compressive deformation and stretching by tensile deformation of metal sheet and metal sections
IPC: B21D11/08
Filed: 1956-09-07
Abstract: 839,871. Upsetting; stretching. ECKOLD, W. Sept. 7, 1956 [May 30, 1956], No. 27502/56. Class 83 (4). Apparatus for upsetting or stretching sheet metal by pressure exerted between opposed tools 8, 9, Fig. 4, each having jaws 1, 1<SP>1</SP>, Fig. 1, which are moved together or apart under the exerted pressure to upset or stretch the metal, the jaws are provided with a pressure plate or plates 4, 4<SP>1</SP> of a flexible synthetic resin. Two separate plates may be used, Fig. 1, or a single slotted plate 7, Fig. 4. Various forms of slotted plate are described, Figs. 5-7 (not shown). The plates are preferably made from a laminated fibrous resin such as " Dytron " (Registered Trade Mark). Hard metals or other hard materials in powder form may be added to the resin to increase its wear quality. The jaws 1; 11 are moved by inclined blades 2 embedded in rubber 3: these blades are oppositely inclined for stretching the sheet.
Patent GB-998928-A (GB)
Title: Doors for steaming ovens and other enclosures
Inventor: BOWKER DONALD
IPC: F24C15/02
Filed: 1962-07-18
Abstract: 998,928. Door fastenings. JAMES STOTT & CO. July 11, 1963 [July 18, 1962], No. 27536/62. Heading E2A. [Also in Division F4] An enclosure, especially a steaming oven, is provided with a door operable by handle means which includes at least one pivotable member, the latter, on closure of the door being movable into positive engagement with a resiliently loaded detent 28 which then acts due to its loading to urge the door into sealing engagement with the enclosure. As applied to a food-steaming oven having two horizontally hinged doors 12, 13, each door is connected to the oven body by a pair of side links 18 passing through apertures 20 in the front of the body and connected to the rear thereof by tension springs 19, which act as a means of counterweighting the door. Cam surfaces defined by protuberances 34 and 36 on each link 18 co-operate with a roller 21 on the front of the oven body, in the partially open and fully open positions respectively of the door. A handle 25 interconnects a pair of side members 24 pivotally mounted in the door and extending through apertures in the door and body, the inner end of each member 24 carrying a roller 27 which co-operates with a spring-loaded detent 28 pivotally mounted in the body. The members 24 pass into, and the links 18, springs 19 and detent 28 are located in false sides of the oven body. The arrangement is such that initial upward movement of the handle 25 releases the door from its closed position Fig. 2, to a partially open position, whereafter the door may be moved to its fully open position by a pull on the handle 25.
Patent GB-855481-A (GB)
Title: A process for separating thorium, cerium and rare earths from mixtures of their oxides or hydroxides
IPC: C01F17/271
Filed: 1958-08-28
Abstract: Thorium, cerium and rare earth metals are separated from a mixture of their oxides or hydroxides by (a) heating the mixture in air at above 100 DEG C. to oxidise cerium to the tetravalent state, (b) selectively dissolving the trivalent rare earth metal compounds in hydrochloric or nitric acid and separating the solution from the residue, (c) dissolving the residue, partly or wholly, in an acid in the presence of a reducing agent or in an acid which functions as a reducing agent under the dissolution conditions and (d) precipitating the thorium from the resultant solution by means of an alkali metal, ammonium or cerium hydroxide or carbonate and separating the cerium solution from the residue. Before the separation step (b) the pH may be adjusted with an alkali metal, ammonium or rare earth hydroxide or carbonate to 4-5 to precipitate any thorium solubilised.  Suitable dissolution media for (c) are hydrochloric acid, used in amount sufficient to provide a final acidity of at least 0.5 M. (under which conditions it functions as a reducing agent with formation of chlorine) or hydrochloric acid and an alcohol, e.g. methanol or ethanol; sugars, e.g. glucose may alternatively be used as the reducing agent, in which case the cerium may be dissolved preferentially, leaving the greater part of the thorium unattacked; sulphur dioxide may also be used with sulphuric or hydrochloric acid under special conditions of temperature, pH and concentration.  From the solution obtained after (b), rare earths may be recovered by evaporation or precipitation, e.g. with sodium carbonate, and cerium may be recovered from the solution obtained in (d) by evaporation or precipitation, e.g. with sodium carbonate or with sodium sulphate to form the double sulphate.  Uranium, if present in the original material, remains associated with the thorium throughout the above reactions.
Patent GB-1280534-A (GB)
Title: Filtration control
Inventor: HILL PETER MURRAY
IPC: B01D37/04
Filed: 1969-05-31
Abstract: 1280534 Rotary filter control system BRITISH TITAN Ltd 21 May 1970 [31 May 1969] 27677/69 Heading B1D [Also in Division G3] A rotary wash filter comprises a drum 1, rotated by a motor 1a, mounted within a tank 2. A liquid suspension to be filtered is held in a container 6 and fed to the tank through a pipe 3 under control of a valve 4. The temperature and specific gravity of the suspension are determined by a thermometer 7 and a device 8, and the flow by a meter 5. The level of the suspension in the tank is determined by a device 23. The filtrate is discharged from the drum through a pipe 9, which is also used to apply suction to the surface of the drum, the degree of suction being measured on a vacuum gauge 10. The flow through the pipe 9 is measured by a flow-meter 11. Wash water is fed to the outer surface of the drum through nozzles, trough or jets 12 mounted on a pipe 13, and monitored by a flowmeter 14 and a thermometer 15. The wash water is supplied from a chamber 16 fed with cold water from a pipe 17 via a valve 18 and steam through a pipe 19 via a valve 20. The cold water supply is monitored by a flowmeter 22 and a thermometer 21. The filter cake is discharged by a knife, discharge strings, roller or belt, not shown, to a channel 24 in which it is mixed with liquid from a pipe 25, the flow from which is monitored by a flowmeter 26 and controlled by a valve 27. The reslurried cake is discharged through an outlet pipe 28. The method of control by a computer of the filter is disclosed with respect to the filtration of a slurry of titanium dioxide in water containing iron compounds as an impurity. The impurity contents A1 A2 of the liquid suspension fed to the tank and the nitrate respectively, are monitored continuously and the impurity contents A3, A4 of the reslurried cake and suspension in the tank, respectively, are intermittently monitored by suitable analytical techniques.
Patent GB-257129-A (GB)
Title: Improvements in stays for casement windows or the like
IPC: E05C17/18
Filed: 1925-11-04
Abstract: 257,129. Parker, Winder, & Achurch, Ltd., and Wood, J. A. Nov. 4, 1925. Stays.-The stay-bar 10 which passes through a swivelling guide member 12 is formed with a narrower part 17 to enable the bar to be lifted above the side members 13 and released from the guide member, the bar being provided with a movable member 18 which normally forms a stop to prevent the bar being moved endwise into a position in which it can be so disengaged. The stay-bar is formed with holes 14 which engage with a pin 15 of the member 12 to secure the casement in an adjusted position, and is provided with laterally extending flanges 11 which normally prevent the bar being lifted through the side members 13. The stop member 18 is pivoted at 20 on the reduced end 16 of the bar and its side portions 19 hang down over the two sides of the bar. The knob 21 is positioned above the projecting portion 22 of the stop to prevent it remaining in a releasing position. The stop may be normally locked in position and be releasable only by the use of a special key when it is required to lift the stay-bar out of the guide.
Patent GB-789939-A (GB)
Title: Improvements in or relating to clutch mechanisms
IPC: G06C23/06
Filed: 1956-09-11
Abstract: 789,939. Controlling positive clutches, shaft couplings. BURROUGHS CORPORATION. Sept. 11, 1956 [Sept. 23, 1955], No. 27790/56. Class 80 (2). Control means for a clutch in which the driven member is biased into engagement with the driving member, comprises a cam intermittently operable to coact with dogs on the driven member to disengage the clutch, and means engaging the dogs to stop the driven member when disengaged. The driving member 10 of a positive clutch is driven from an input bevel gear 21 through forward and reverse gears 17, 18, selected by movement of a clutch member 16, and shaft 11. The driven clutch member 12 freely mounted on a shaft 22, drives that shaft through a helical spring 30 the radial ends 31, 32 of which engage a peg 33 rigid with the member 12 and a pin 34 secured to the shaft 22. The shaft 22 and clutch member 12 are biased to the clutch engaged position by a spring 23 within an output shaft 24 to which the shaft 22 is slidably connected by a pin 25 having rollers 26, 27 engaging in the slots 28, 29 in the shaft 24. The clutch member 12 has a flange on which are formed dog teeth 35 and to which flange is secured a ring 41 of non-magnetic material. A clapper 37, pivoting about a pin 39 under the attraction of a solenoid 38 acting against a spring 40, has a camming end cooperable with the pointed end of the dog teeth to disengage the clutch 10, 12 when the spring 40 swings the clapper into the path of the dog teeth. Two locking elements 42, 43 are carried by pivots at right angles to the pivot 39 and are urged against non-magnetic buttons 48, 51 on the clapper 37 by a spring 46, the ends of these locking elements being arranged to coact with the sides of the dog teeth 35 to hold that clutch member when the clutch is released. In operation, when the solenoid 38 is energized the clapper 37 is attracted and the camming end is held clear of the teeth 35, the locking elements 42, 43 being also held clear by virtue of the arms 47, 50 resting on the clapper 37, the spring 23 thus produces engagement of the clutch 10, 12. De-energization of the solenoid 38 allows spring 40 to move the clapper 37 into the path of the dogs 35 whereupon camming takes place between the clapper and the dogs to force the clutch member 12 out of engagement. On disengagement, a flywheel 52 on the shaft 24 provides inertia to continue the camming action for disengagement clearance and to allow the locking elements 42, 43 to position themselves to lock the driven member. The spring 30 provides for rebound of the flywheel when the clutch member is locked.