baber/WOPTO huggingface dataset:
Patent GB-505336-A (GB)
Title: Improvements in and relating to apparatus for purifying cereal products
IPC: B07B1/52
Filed: 1938-08-25
Abstract: 505,336. Sifting-apparatus. DEBONO, N. Aug. 25, 1938, No. 25038. [Class 117] Brushes mounted beneath a reciprocating sieve are given positive reciprocating motion and are so arranged that they engage the sieve when moved in one direction and are inoperative when moved in the opposite direction. In the form shown, the sieve 3 and its tray 23 are reciprocated by the eccentric 6 and the brushes 12 are in holders 11 secured by hinges 13 to a carrier 8 slidably mounted on guideways 9, the holders 11 having extensions pivoted to a connecting rod 15. The rod 15 is reciprocated from a crank 16 by levers 17, 18, 19 the brushes engaging the sieve for one direction of movement and being tilted as shown in chain lines for the other direction. The roof of the housing 26 is connected with air trunks for drawing air through the sieves and through adjustable valves above them. A slotted hood 31 is arranged over the sieves and its slots 32 are shrouded so that if any entrained particles drawn up from the sieves drop back on the hood they do not re-enter the hood.
Patent GB-534281-A (GB)
Title: Improvements in or relating to tubulous boilers with vapour heaters
IPC: F22B35/10
Filed: 1939-09-01
Abstract: 534,281. Steam boiler furnaces. BABCOCK & WILCOX, Ltd. Sept. 1, 1939, No. 25052. Convention date, Sept. 22, 1938. [Class 51 (i)] [Also in Group XIII] A water-tube boiler has a main furnace 10 containing horizontal water-tubes 12, and separately fired auxiliary furnaces 16, 14 separated from the main furnace by tube walls 70, 80 and containing a superheater 22 and a reheater 60. The gas from the ancilliary furnaces join the gases from the main furnace beyond the water-tubes 12 and pass upwards over economizer tubes 164. The outlet header 34 of the super-heater 22 is connected to the inlet heater 38 of a secondary superheater 40 in the main furnace above the tubes 12. Steam to be reheated flows upwards through sinuous wall tubes 52 connected to the inlet header 56 of the re-heater 60. The three furnaces have a common ashpit 170.
Patent GB-630771-A (GB)
Title: Improvements in or relating to a well tool
IPC: E21B33/12
Filed: 1947-09-15
Abstract: 630,771. Well cementing tools. TAYLOR, C. C. Sept. 15, 1947, No. 25179. Convention date, April 13, 1946. [Class 85] A well cementing tool comprises a tubular body 4 secured to a string of drill pipe 3, the body carrying spaced packers 5, 6 defining in conjunction with the well casing 2 a chamber 7. The tubular body is sealedoff from the drill pipe by a partition 12 and the pressure in the casing above and below the packers is equalised during entry of the tool since fluid flow occurs through ports 10, 11 in the body. The drill string is connected by a pipe 14 to the chamber 7 whilst a pipe 18 connects the chamber 7 to a port 17 opening into the well casing space above the packers. The ports 11 and 17 are controlled by a sleeve valve 20. During lowering of the tool the ports 11, 17 are open and the pressure equalised in the drill stem, chamber 7 and the upper and lower casing space. On the tool reaching a level slightly below the zone of the perforated casing it is raised a short distance so that the valve 20 closes the ports 11, 17 and grout is pumped down the drill pipe through pipe 14 into chamber 17 and out through the perforations in the casing. To clean the tool after the operation, fluid can be pumped down the casing passing through' the spring-loaded supplemental valve 27 in the tubular body, through port 10, up past the packer 6 into chamber 7 and thence by pipe 14 up through the drill pipe. Flow down past the packers, instead of the supplemental valve 27, is prevented by packer 8. Alternatively, the tool can be raised and fluid pumped down the drill pipe into chamber 7 and through pipe 18 into the upper casing space. To prevent the tool from being forced upwards slips are provided, the slipexpanding means being carried on a mandrel secured between the drill pipe and the body, the mandrel being forced downwards to a slipexpanding position by pressure fluid in the drill pipe acting on a piston 55 carried by the mandrel.
Patent GB-1495437-A (GB)
Title: Vehicle inspection ramps
IPC: B66F7/04
Filed: 1975-06-12
Abstract: 1495437 Elevating apparatus A MACCARONE 12 June 1975 [13 June 1974] 25222/75 Heading B8L A vehicle inspection ramp comprises two pairs of columns 1, 4 and 2, 3 with a latchable transverse bar 5 between each pair and movable along the columns to elevate vehicle supporting runways 7, 8 adjustably mounted on the bars 5, and vertically slidable vehicle supports 41 self-lockable to slide bars 29 associated with the columns, the supports 41 being pivotable between an operative position projecting into the path of travel of the vehicle being carried and an inoperative position out of this path. Each support 41 comprises a U-shaped strap seated around the circular slide bar 29 and pivotally carrying the supporting bar between the strap wings such that loading on the bar free end causes the other end to dig into the slide bar 29 to arrest the support 41, which is counterbalanced through a weight, cable or pulley system. The transverse bars 5 are elevated simultaneously by a single hydraulic ram in one column actuating a cable and pulley system extending to all four columns. The column pairs are provided along their facing surfaces with slits engageable by spring loaded latching bolts at the ends of the transverse bars, all the bolts being interconnected for simultaneous operation and being shaped and mounted to ratchet allowing the transverse bars normally to ascend but not to descend. One of the bolts includes a lateral lug engageable by the bar of a latch release mechanism for displacing all the bolts clear of the slits. In operation, with a vehicle on the runways 7, 8 a control handle position is selected causing the lifting ram hydraulic pump to be energized, and the latch release mechanism to be operated however this handle cannot be so moved until a solenoid operated block is released by all the supports 41 pivoted into their inoperative positions to operate associated series switches in the solenoid circuit. At the desired elevation, the handle is returned to its neutral position and the latches re-engage after swinging all the supports 41 into their operative positions below the vehicle once again permitting energization of the solenoid block, the handle is moved into a second position causing release of the latches and exhausting of the transverse bar operating ram whereby the bars and runways descend leaving the vehicle on the supports 41. Movement of the handle to a third position from vertical causes the lifting ram to exhaust but the latches to remain engaged with the columns to support the vehicle.
Patent GB-177117-A (GB)
Title: Process for electrical gas purification
IPC: B03C3/014
Filed: 1921-09-23
Abstract: Furnace gases are first cooled to the dew-point or below, whereby they are deionized, and are heated again in such a way as to prevent ionization by flames &c.  The gases then enter an electric precipitator in which dry deposits are thus obtained.
Patent GB-924385-A (GB)
Title: Improvements to machines for stripping hops
IPC: A01D46/02
Filed: 1959-07-23
Abstract: 924,385. Hop-picking machines. PERSONENVENNOOTSCHAP MET BEPERKTE AANSPRAKELIJKHEID THEMILCO. July 23, 1959 [Aug. 30, 1958; March 27, 1959], No. 25252/59. Class 6(3). A hop-picking machine comprises a carrier 1 having gripping members 5 arranged to carry hop tines between two banks of stripping drums which may be resiliently mounted to move at right angles away from the carrier, a perforated first conveyer 45 which allows the fruits to fall through it but carries unwanted twigs and leaves to a discharge conveyer 59, and a second conveyer 50 which feeds the fruits to a grid formed from a number of rollers between which the fruits fall on to a sorting drum 61. The drum 61 comprises a perforated rotating cylinder having means for providing suction between the plates 63, 64 whereby unwanted leaves are carried on to a discharge conveyer 69 and fruits are heavy enough to fall through combs 66, 67 and through an air jet from blower 72, 71 which separates light fruits from heavy fruits on to a conveyer 70 from which the heavy fruits pass on to an inclined rough conveyer 73 arranged to allow the fruits to roll down it but to carry any twigs or leaves upwards on to a discharge conveyer 74. The fruits then pass on to an outlet conveyer 75. The stripping drums are formed from a series of angle irons supporting stripping members 25 as shown in Fig. 6. The hop kines are released from the gripping members 5 by passing between two short conveyers 10, 11.
Patent GB-226309-A (GB)
Title: Improvements in the manufacture of cellulose acetate
IPC: D01F2/30
Filed: 1923-10-10
Abstract: Solutions of cellulose acetate suitable for direct spinning are made by employing in the acetylation in place of acetic acid, a solvent of a boiling point not exceeding 60 DEG  C., for example, ethyl formate or methyl acetate.  The initial material may be cellulose, or a cellulose containing a small amount of loosely combined water such as is obtained by treating cellulose in a beating-machine, or a partly-hydrolyzed product obtained by treating cellulose with glacial acetic acid, a little acetic anhydride, and a catalyst.  On completion of the acetylation, precipitating or neutralizing-agents may be added to remove the catalyst and any excess of anhydride and acetic acid.  A coloured solution for the spinning of coloured filaments is obtained by adding a dyestuff during the action or at its completion.
Patent GB-978819-A (GB)
Title: Improved method and device for the continuous winding of wire
IPC: B21F35/00
Filed: 1963-06-26
Abstract: 978,819. Coiling. CENTRE DE RECHERCHES DE PONT-A-MOUSSON. June 26, 1963 [Nov. 14, 1962], No. 25370/63. Heading B3E. A method for obtaining a helical winding of a metal wire comprising coils inclined relative to the axis of winding and offset from each other comprises continuously bending the wire at a periodically variable radius of curvature. Wire F from a reel B is fed by rolls 2, 3 between rolls 5, 6 and against an offset roll 7. The roll 7 is eccentrically mounted on a spindle 8 carried on a transversely adjustable carriage 10 on a longitudinally adjustable carriage 11. The feed of the wire F rotates the roll 7 or the roll 7 may be driven by a motor 4 which drives the feed rolls 2, 3. The outside diameter of the coils and the curvature or otherwise of the axis of the coil is determined by the form of the roll 7 and its distance from the rolls 6, 6. The plane of the roll 7 may be offset from the plane of the wire feed to form a toroidal coil, Fig. 7. The roller 7 may be placed between the rollers 2, 3 and 5, 6. The roller 7 could be inclined relative to the plane of the wire feed. The roller 7 may be smooth, i.e. without a peripheral groove.
Patent GB-481944-A (GB)
Title: Method for compensating the effects of oscillations which distort the image reproduced on a surface, more especially in television transmission
IPC: H04N3/237
Filed: 1936-09-18
Abstract: 481,944. Television receivers. MICHAELIS, E. (Kinne, E.) Sept. 18, 1936, No. 25443. [Classes 39 (i) and 40 (iii)] The effects of oscillations, which distort an image reproduced on a surface, are neutralized by an auxiliary leakage field of the same frequency but opposite phase. The auxiliary field is produced magnetically. A concentrating, deflecting or similar coil is connected in the heating circuit, of a triode valve and its leakage field is directed on the cathode ray which is deflected by the distorting field. Specification 449,822 is referred to.
Patent GB-443945-A (GB)
Title: Process for manufacturing butterfly nuts
IPC: B21D53/24
Filed: 1935-09-13
Abstract: 443,945. Making nuts. SCHRAUBENUND SCHMIEDEWAARENFABRIKS-AKT.- GES. BREVILLIER & CO. UND A. URBAN & SOHNE, 18, Linke Wienzeile, Vienna. Sept. 13, 1935, No. 25449. Convention date, Sept. 17, 1934. [Class 83 (ii)] A butterfly wing nut is formed from a blank comprising a central portion 1, Figs. 2 or 5, in which the screw threaded hole 2 is formed, and to which are united by neck portions 4 the wings 3 which are unsymmetrical relatively to the common axis x-x of the neck portions, the wings 3 being turned through 90‹ about the necks 4 to form the nut N, Fig. 4.
Patent GB-368308-A (GB)
Title: Improvements in or relating to combined phonographic and cinematographic apparatus
IPC: G03B31/00
Filed: 1930-08-26
Abstract: 368,308. Gramophones working in association with kinematographs. OSTIGUY, E., 1321, Rue Sherbrooke Ouest, Montreal, Canada. Aug. 26, 1930, No. 25498. [Class 40 (ii).] In combined sound-reproducing and kinematograph apparatus, a pick-up mounted on a swinging arm is fed across the sound record by means controlled or operated by the rotation of the record without the use of a positive mechanical feed, the said means comprising either an electrical or an hydraulic transmission system. The construction shown in Fig. 2 embodies an electrical device comprising a rotor 68 mounted on a shaft 56 to which the pick-up carrying arm 36 is connected, and a stator 60 having windings 58, 59 by which a rotating field is produced by supplying alternating current from a source 64 to the windings. The rotor 68 consists of a mass of laminated plates, and the shaft 56 is under the control of a coiled spring S. Connected in the circuit between the current source 64 and the windings 58, 59 is a resistance 72 wound helically upon a cylinder on a shaft 74 which is driven by the turntable spindle 52, itself driven by gearing P from the kinematograph. The resistance in circuit is gradually reduced by means of a sliding contact 81, moved longitudinally by a feed screw 79. Thus the current strength is gradually diminished as the rotor 68 turns the shaft 56 in opposition to the increasing torque of the spring S, and the pick-up arm 36 is by this means swung across the record with a uniform movement. A speed-reducing gear and a clutch (not shown) are preferably interposed between the shaft 56 and the arm 36. In a modification, Fig. 1 (not shown), the helical resistance 72 is replaced by a flat coil on a disc rotating with the turntable spindle, and instead of the slider 81 a contact coacting with the resistance is provided on a positively driven swinging arm. Fig. 3 shows an apparatus wherein an hydraulic feed device is provided. The pick-up arm 36 is mounted on a shaft 38 which carries a vane 82 adapted to rotate in a fluidtight casing 83. Ports 84, 85 in the casing, on opposite sides of the vane, are connected by tubing 86 with the delivery side 88 and the suction side 89 respectively of a fluid pump. The pump comprises a double-acting piston 90a in a cylinder 90, the piston being operated by a nut 91 and screw 92 rotated by the gramophone or kinematograph. As the pump forces fluid into the casing 83, the vane 82 is moved and swings the pick-up arm across the record. A regulating screw plunger 93 is provided as shown. A further arrangement comprising a rotary pump instead of a piston pump is described and shown.
Patent GB-945028-A (GB)
Title: Improvements in or relating to the preparation of esters from methyl acetylene
IPC: C07C69/145
Filed: 1962-07-03
Abstract: Isopropenyl esters are made by reacting methylacetylene with a saturated aliphatic acid containing 2-18 carbon atoms at 10-15 DEG C. in the presence of a catalyst comprising boron trifluoride etherate and mercuric oxide or a mercury salt of an aliphatic carboxylic acid. The boron trifluoride etherate is preferably used in association with the red form of mercuric oxide or with mercuric acetate.  Analytical grade red mercuric oxide and freshly distilled boron trifluoride etherate are preferably used.  A small proportion of an aliphatic alcohol, e.g. methanol, ethanol or propanol, may be included in the reaction mixture.  Examples are given of the preparation of isopropenyl acetate and propionate.  Other specified acids which may be esterified are isobutyric, valeric, caproic, heptoic and caprylic acids.
Patent GB-761873-A (GB)
Title: Improvements in or relating to switching devices for supervising the readiness to receive condition of teleprinter subscriber stations
IPC: H04L12/26
Filed: 1953-09-15
Abstract: 761,873. Telegraph exchange systems. SIEMENS & HALSKE AKT.-GES. Sept. 15, 1953 [Sept. 15, 1952], No. 25538/53. Class 40 (3). A circuit arrangement for supervising in a teleprinter subscriber station the " readiness to receive " condition in relation to the supply of recording paper, incorporates a contact member exploring the paper and operating in the case of paper deficiency in an existing connection to produce a condition corresponding to the clearing signal which consequently effects the disconnection of the teleprinter machine in which the paper deficiency has arisen or produces a signal indicating that disconnection should be effected. In the normal condition of operation the rectifier G which is connected in series with the transmitting contacts SK and the receiving magnet EM is short-circuited by the contact member K in the position shown. The relay ER is in the spacing condition with its armature er engaging contact T so that the relay H is energized and the motor M connected at contacts h<I>, h<III> to the supply terminals N1, N2. The high. resistance winding II of relay ER is shortcircuited by the contact h<II>2. If the paper supply fails, the short circuit of the rectifier G is removed and current which flows over the line in the direction Pf during message transmission is blocked so that a cleaning condition, similar to the opening of key ST, is produced at the exchange. The subsequent reversal of the current from the exchange is sufficient to operate relay ER by means of its low resistance winding I to the opposite position Z so that the motor relay H is de. energized and the motor M disconnected from the terminals N1, N2. A resistor W connected in parallel with the windings of relay ER and the signal Sz simulates the condition of the depression of the calling key AT so that a preselector at the exchange marks the subscriber's line busy by connecting it to a free group selector so that connection to the subscriber with the " out-of-order " teleprinter is impossible. Also at the exchange the " subscriber out of order " condition will be imposed so that a calling subscriber will be advised that connection to the subscriber with the inoperative teleprinter is unobtainable. In the case of manual exchange operation after the initial breaking of the connection in response to the clearing condition, the calling condition is immediately produced and if the operator inserts the plug into the jack of the calling subscriber the clearing indication is again produced so that the operator is made aware of the inoperative condition of that subscriber's teleprinter.- The circuit may be employed in two-wire or four-wire systems, the bridge connections shown by dotted lines 1, 2 and by the dotted line 3 being used with the respective arrangements.
Patent GB-426246-A (GB)
Title: Improved acoustic apparatus for the deaf
IPC: A61F2/18
Filed: 1934-09-06
Abstract: 426,246. Hearing-appliances. BRUNE, D. F., 52, Boulevard Anspach, and SEDEYN, L. V. A., 48, Rue H¶tel des Monnaies, both in Brussels. Sept. 6, 1934, No. 25704. Convention date, Sept. 6, 1933. [Class 81 (ii)] In a hearing - appliance comprising two conduits 13, 2, to be placed in the internal and external ear respectively, and connected bv a substantially spherical fitting 1, the conduit 2 is divided by an elastic, e.g. metal wall 5, Fig. 2, into at least two chambers into each of which sound waves enter and are amplified by thin blades 9 secured at one end, which are set in vibration. An opening 3 is provided for the chamber 2<1> which communicates with the chamber 4 by two or more openings 7 in the wall 5. Alternatively, the openings 7 may be omitted and a second aperture provided in chamber 4, either beneath the aperture 3 or at the opposite end of the chamber. In the latter case the aperture terminates a horn beneath the chamber 4 and leading into it. In a modification, Fig. 5, the member 1 is divided by a wall 21. The chamber 22 has an opening 19 with a guide 20.
Patent GB-1420915-A (GB)
Title: Lock
IPC: E05B47/00
Filed: 1974-06-10
Abstract: 1420915 Cylinder locks E BOVING 10 June 1974 [25 Oct 1973 6 Feb 1974 21 March 1974] 25737/74 Heading E2A A cylinder lock comprises a core 3 rotatably mounted in a housing 1 and having a keyway 27 and an axially extending row of rotatable magnet carriers 17, 18, 19 and an axially extending locking bar 11 which in the locked condition of the lock lies partly in an axial groove 10 in the housing 1 and partly in the core 3 and is prevented from moving out of the groove 10 by engagement with the carriers 17, 18, 19. The arrangement is such that on the introduction of the correct magnetically coded key 29 into the keyway 27 the carriers 17, 18, 19 are rotated to such positions that the bar 11 is free to be urged inwardly into the core to allow relative rotation between the housing 1 and core 3. As shown the bore 11 is provided with projections 23 each of which, in the unlocked condition of the core 3, enters a respective opening 22 in a carrier 17, 18, 19. The bar 11 is spring urged into the groove 10 and is forced therefrom on initial rotation of the core by a camming action. If a forced rotation of the core is attempted the construction is such that no force is exerted on the carriers. In a modification the projections of the bar are along one edge thereof and the bar carries guiding tongues at its corners for co-operation with the core (Figs. 5 to 8, not shown). In a further embodiment (Figs. 10, 11 not shown) the bar is arranged laterally of the carriers and an abutment surface is provided for the carriers on the opposite sides thereof from the bar. The lock may be provided with a keyway closure slider which normally closes the keyway and which on introduction of the key moves into locking engagement with the housing until a notch of the key co-operates therewith such that the slider clears the housing again (Figs. 5 and 12 to 16, not shown).
Patent GB-334371-A (GB)
Title: Improvements in means for washing, screening and elevating sand and other materials
IPC: B03B5/56
Filed: 1929-08-24
Abstract: 334,371. Banks, H. Aug. 24, 1929. Washing-apparatus with screens; rotary wet-separating and washing apparatus.-Washing and screening apparatus for sand &c. comprises a rotating perforated drum a with external blades n and an internal helical blade o mounted partly within a water tank h. The drum is driven by a chain d engaging an annular channel or rim e on the drum and passing over a toothed wheel f on a spindle g. The chain carries drags or paddles d' which pass along a gulley k formed in the bottom of the water tank h and up an inclined shoot m leading from the gulley. Water is supplied to the tank h through a. pipe i and escapes through an overflow pipe j. The sand &c. is supplied through an opening b and may be directed by a baffle on to the bottom of the drum, the finer constituents passing through the perforations and being directed into the gulley k by the blades n, from which they are removed by the drags d<1> up the shoot m. The more massive constituents are passed through the drum by the helical blade o and may be raised by inclined plates attached to the end a<2> of the drum to be discharged down a shoot c<1> projecting through an opening c in the'end a<2>. The apparatus may be mounted on wheels p and the drum may have sections of different gauge perforations, a plurality of driving chains, gulleys, shoots and external blades being then provided.