baber/WOPTO huggingface dataset:
Patent GB-561929-A (GB)
Title: Improvements in spars or booms for aeroplane wings
IPC: B64C3/18
Filed: 1941-08-28
Abstract: 561,929. Aircraft wing spars. VICKERS - ARMSTRONGS, Ltd., and WALLIS, B. N. Aug. 28, 1941, No. 10958. [Class 4] A tapered metal spar or boom for an aeroplane wing comprises a solid forging, extending in one piece over the whole length of the wing, or a series of forgings connected end to end, said forging or' forgings being machined to the appropriate tapering section and provided at their extremities with means for connection to the fuselage and, in a multi-section spar, to each other. Fig. 2 shows a plan of a one-piece boom of generally rectangular cross-section with two bevelled edges, a tapering rib 8, and a rounded end 6 screw-threaded at 9. The boom is roughly forged to shape and then milled, turned and screwed. Two such booms are connected at their inner ends to a common fuselage cross-member by a screwed sleeve engaging opposite-handed threads on the boom and cross-member, upper and lower pairs of such booms being provided for each wing. Alternatively, the booms may meet and be similarly connected together within the fuselage so as to form a continuous boom from wing tip to wing tip. For a folding or detachable wing the screwed ends are replaced by other integral coupling or hinging members. The screwed ends of the boom or boom sections are set at an angle to the boom if a wing set at a dihedral angle is required,
Patent GB-431286-A (GB)
Title: Colouring materials for coating surfaces
IPC: C04B41/50
Filed: 1934-04-11
Abstract: Coloured materials for coating surfaces such as those of slates, tiles, glass, porcelain, concrete, or brickwork, are made by preparing sols from hydroxide of iron or hydroxide of chromium, or both, and incorporating therewith inorganic powders serving as colouring matters without acting as electrolytes or having any adverse effect upon the sols.  The inorganic powders, such as red oxide of iron, green oxide of chromium, black oxide of manganese, ochre or smalt, may be incorporated with the liquid sol and the mixture, if desired, dried, or they may be mixed with the already dried sol.  For application, the mixture is stirred with water, and, after application, the sol may be gelled by applying an electrolyte, such as sodium silicate solution, as described in Specification 424,919.
Patent GB-111264-A (GB)
Title: Improvements in or relating to Balance Ploughs.
Inventor: WHEATLEY DANIEL YELD
IPC: A01B3/62
Filed: 1917-07-31
Abstract: 111,264. Wheatley, D. Y. July 31, 1917. Adjusting and connecting fore-carriages for steering.-The motor a of the plough with its shaft b change speed and reversing gear, differential gear f and wheel shafts h, h<1> is mounted in a frame pivotally secured to the furrow side of the main frame by a ball joint n which is capable of being raised or lowered by a screw p operating a vertically guided block in which the ball joint n is situated. On the land side the motor frame is supported by a second joint q in a block r adapted to slide horizontally in guides vertically adjustable in the main frame by screws p'. The sleeve k carrying the axle h' which passes through this joint is connected by chains t to the drum u operated from the steering bars x. The rotation of these bars causes the block r to be moved along its guide, thus turning the motor frame and the driving- wheel about a vertical pivot passing through the ball joint n.
Patent GB-527452-A (GB)
Title: Improvements in or relating to regenerative air-heaters and like heat-exchangers
IPC: F28D19/04
Filed: 1939-04-12
Abstract: 527,452. Rotary regenerators. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. April 12. 1939, No. 11105. Convention date, April 13, 1938. [Class 64 (i)] One face 26 of a rotary regenerator is closed while the inlets and outlets 98, 78, 80, 100 for the two media are so arranged that one medium enters in a radial direction and flows out in an axial direction at the face opposite the closed face and the other medium enters in an axial direction at the same face and flows out in a radial direction. The metal plates forming the heat-exchange masses are supported in casings 38 which may be readily inserted between radial walls 20 secured to the axis of the rotor, which is supported by a bearing resting on cross beams 12. The outer casing is supported by connections which may be adjusted by eccentric pins 66 in an axial direction.
Patent GB-621794-A (GB)
Title: Improvements in spacing or distancing devices for partitions or separators for card indexes and file drawers of vertical type
IPC: B42F17/02
Filed: 1946-04-11
Abstract: 621,794. Card-index drawers. LOMBARDINI, L. April 11, 1946, No. 11176. Convention date, Oct. 20, 1939. [Class 146 (i)] A distancing device for spacing partitions in vertical-card-index drawers comprises a base block 1 with two spaced converging uprights 4, 5 in a vertical plane, between which the lateral projection 12 of a partition 13 is inserted, the blocks 1 being slidable in guides 3 in the sides of the card-index drawer. The blocks 1 are recessed or furrowed at the bottom to lighten them and reduce friction in the guide. The uprights 4, 5 may have rounded tops or, as shown, may be provided with rollers 10, 11 mounted on pivots 8, 9. To increase the spacing between partitions, auxiliary blocks of the length desired for extra spacing may be inserted between the blocks 1 carrying the partitions.
Patent GB-730119-A (GB)
Title: Clutch-brake driving device
IPC: H02K7/112
Filed: 1953-04-23
Abstract: 730,119. Motor driving arrangements. SINGER MANUFACTURING' CO. April 23, 1953 [May 1, 1952], No. 11186/53. Class 35. [Also in Groups XXIV and XXXIV] In a clutch-brake driving device for sewing- machines, of the type comprising a fly-wheel 84, Fig. 4, driven by an electric motor 59, a brake member 87 and a driven disc 78 on a shaft 75, the shaft is carried in ball-bearings in a sleeve 71 rotatable and axially slidable in the detachable end cap 56 of the clutch housing, the sleeve being formed with a groove 104 engaged beneath the shaft by a pin 102 in a fork at the end of a pivoted control lever 22, and the brake member 87 is pivotally mounted by gimbal pins 88, Fig. 7, in a ring 85 pivoted to the end cap at 86 and moved axially by screw means 89 to adjust the play between the brake member disc and fly-wheel. The end cap 56 can be detached from the main casing, rotated, and put back in a new position. The motor 59 &c. is mounted beneath a table, Fig. 1 (not shown), supporting a sewing-machine which it drives through means incorporating belt tensioning and aligning arrangements as described in Specification 730,117. In a modified arrangement the motor housing is mounted on a bracket secured to the underside of the table top. The clutch-brake mechanism and the motor are cooled by the means described in Specification 730,118. Specifications 416,461; 535,239, 545,860, [both in Group XXIV], 620,960, 622,441; 679,355, [Group XXIV], are referred to.
Patent GB-783759-A (GB)
Title: Means for attaching push discs to conveyor chains
IPC: B65G19/08
Filed: 1956-04-12
Abstract: 783,759. Endless - chain conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. April 12, 1956 [April 25, 1955], No. 11203/56. Class 78 (1). In a push-plate type conveyer of the kind in which discs are detachably connected to a round-link chain, the attaching means comprises two straps 13, 14 arranged at a distance from one another, each being inserted into a link 23 in a position different from the position of use, turned into operative position and then secured to a disc 10. Each strap is formed with oppositely-disposed recesses 21, 22 which are engaged by the link. Each disc 10 is welded to a bush 11 which receives pins 17, 18 passed through apertures in the straps. The pins are secured in the bush by longitudinally slotted sleeves 19, 20 which are somewhat resilient in the radial direction. In a modification the bearing bush is disposed within the area of the disc and a single pin replaces the pins 17, 18.
Patent GB-662470-A (GB)
Title: Improvements relating to the driving of gramophone turntables
IPC: G11B17/02
Filed: 1949-04-27
Abstract: 662,470. Driving sound reproducing machines. FORTUNE, H. J., and GARRARD ENGINEERING & MANUFACTURING CO., Ltd. April 21, 1950. [April 27, 1949] No. 11226/49. Class 40 (ii). Driving mechanism for a gramophone turntable, comprises an electric motor adapted to provide an ungoverned drive to the turntable of, say, 78 R.P.M., and speed governing means adapted to be moved into and out of engagement with the motor, said governing means being adjustable to give reduced speeds of the turntable of, say, 33<SP>1</SP>/ 3  and 45 R.P.M. The turntable is driven by a friction roller 1 mounted at the upper end of an electric motor 3, which when ungoverned drives the turntable at 78 R.P.M. A centrifugal governor 4 is mounted to swing about a vertical axis 6, so that it may engage a tyred wheel 7 on the motor spindle 2. The speed of the governor 4 is controlled by pads 12 on arm 13, the position of which are set by an extending arm 16 and a lever 18, pivoted at 19, carrying an adjusting screw 17. The lever 18 is controlled by a hand-setting cam-disc 20 which is provided with surfaces 22, 23 whereby speeds of 33<SP>1</SP>/ 3  and 45 R.P.M. respectively, of the turntable are obtained. A notch 24 and a pin 25 on the cam-disc 20 serve to lift the pads 12 from the governor, and swing the governor out of engagement with the motor 3 when driving the turntable at 78 R.P.M.
Patent GB-1457582-A (GB)
Title: Monitoring counting and safety apparatus
IPC: G01V8/20
Filed: 1974-03-13
Abstract: 1457582 Light curtains DIECK W 13 March 1974 [13 March 1973] 11257/74 Heading G1A An apparatus for monitoring an area, e.g. so as to switch off a machine or activate a counter when an object enters the area, establishes an oscillating light curtain in the area. The apparatus has a plurality of channels, each comprising a light source S and a detector E; four such channels are shown in Fig. 1 at A-D. These channels are arranged so that each detector E receives light from a source in another channel; each detector switches its own source off upon such receipt of light. A device N is provided (which does not monitor the area) which effectively gives an odd number of channels so that a continuous oscillation is set up, the sources being switched on and off cyclically. This oscillation is rectified at G via transformer U to give a pulsating D.C. at K. If an object enters the monitored area this signal at K vanishes and an alarm, a machine or a counter can be suitably activated. Circuitry in which the sources are LEDs and the detectors are phototransistors is given, Fig. 2 (not shown). The device N is an integrated LED/phototransistor assembly. The sources and detectors may be placed on one side only of the monitored area by use of mirrors such as that shown in chain lines in channel A of Fig. 1.
Patent GB-929971-A (GB)
Title: Improvements in or relating to methods of improving the properties of paper maker's felts and felt cloths
IPC: D06M11/79
Filed: 1960-03-30
Abstract: Paper makers felts containing keratin fibres are treated in one or more steps with an organic base or a derivative thereof, a gaseous or dissolved aldehyde or precursor thereof, and a hydrosol of a water-soluble hydrophobic inorganic acid anhydride, and are then dried, e.g. in an aldehyde atmosphere, preferably containing water vapour, at temperatures up to 90 DEG C.  If desired, additional treatment may be effected with an aldehyde-hardenable substance, e.g. albumin, gelatin, polyvinyl alcohol, capable of forming a colloidal solution in water or the treatment bath. Suitable aldehydes include formaldehyde, glutaraldehyde, whilst bisulphite derivatives, alkylidene diacylates, hexamethylene tetramine, alkylol compounds, e.g. dimethyl methoylolamine, and acid amides thereof, may be used as precursors.  Preferred organic bases are alkylolamines, e.g. aqueous triethanolamine solution and the hydrosol may comprise colloidal silicic acid, stannic, tannic, antimonic, chromic, tungstic, molybdenic, vanadic or zirconic acid.  The alkyolamine treatment is suitably effected at 20 DEG  to 35 DEG C. at a pH of from 7 to 10 and may be preceded by or follow stretching or storing the felt in an aldehyde-containing atmosphere initially at 30 DEG  to 50 DEG C. which is thereafter slowly raised to 70 DEG C.  The concentration of the organic base solution may be 0,05% to 2%, the weight ratio of impregnating alkoylamine liquid used to dry the felt being in the range 40:1 to 4:1, preferably within 10 : 1 to 4 : 1.
Patent GB-590602-A (GB)
Title: Improvements in mining machines
IPC: E21C27/32
Filed: 1944-06-13
Abstract: 590,602. Mining- machines. MAVOR & COULSON, Ltd., and SPROUL, J. C. June 13, 1944, No. 11278. [Class 68 (i)] Relates to mining machines of the kind adapted to sever coal from a seam by the direct shearing action of a wedge-like head, with or without a cutter-chain or cutter-disc which makes an incision in which the wedgelike head acts to remove the coal. The wedge like head B, which may have a central prong 4 and a scoop 5 which moves the coal laterally, has a roof cutter E hinged about a horizontal axis 6, its forward edge having teeth 7 and its underside having an oblique rib 8 which deflects the coal laterally ; the cutter E is urged upwardly by a spring 9, the upward movement being limited by a stop which may comprise a double wedge-member 10 adjustable horizontally by a screw 11 to vary the upper limiting position. The cutter E may have adjacent to the new coal face a downturned part F tapering rearwardly and provided with a cutting edge at right angles to the main horizontal cutting edge. Specification 565,342 is referred to in the Provisional Specification.
Patent GB-378927-A (GB)
Title: Improvements in lacquer or like coatings
IPC: B05D7/26
Filed: 1931-04-16
Abstract: A durable brilliant surface to cellulose nitrate lacquers is obtained by overcoating them with a cellulose acetate lacquer and an intermediate coating which is free from those constituents of the cellulose nitrate lacquer which are injurious to cellulose acetate coatings and is not itself injured by said constituents. The intermediate coating may comprise cellulose nitrate with or without a plasticizer, or it may comprise tricresyl phosphate.  In an example, the basic cellulose nitrate lacquer may be prepared as follows.  Ten ounces of one-half second nitro-cotton, 5 ounces of ester gum and 8 ounces of blown castor oil are dissolved in a quantity of solvent sufficient to make one gallon and consisting of 25 per cent ethylene glycol monoethyl ether, 37 per cent toluene, 23 per cent xylene and 15 per cent ethyl alcohol.  Into this solvent is then ground a pigment consisting of 5 ounces carbon black and 0,7 ounces Prussian blue.  The cellulose acetate overcoating may consist of 20 ounces cellulose acetate of low viscosity, 0-20 ounces resin and from 8 to 18 ounces of a plasticizer dissolved in one gallon of 25 per cent ethyl acetate, 30 per cent acetone, 25 per cent ethyl lactate, and 20 per cent ethyl alcohol.  The resin may be Kauri, Congo or Manila gum which has been treated in powdered form with 30 per cent nitric acid at 80 DEG  C. for 24 hours.  Other overcoatings containing cellulose tripropionate and cellulose aceto-propionate are referred to. The intermediate coating may consist of 20 ounces of one-half p  second cellulose nitrate and 0-14 ounces tricresyl phosphate dissolved to make one gallon of solution in butyl acetate 50 per cent and toluene 50 per cent.  Specification 299,781 is referred to.  Reference has been directed by the Comptroller to Specification 299,781, [Class 95, Paints &c.].
Patent GB-660651-A (GB)
Title: Filter for liquids such as gasoline and the like
IPC: C08B3/10
Filed: 1948-10-04
Abstract: The subject-matter of this Specification is identical with that described in Specification 660,594, but the claims are for the arrangement of the threaded connection between the ring and head for urging the bowl, gasket and head into sealing relationship.
Patent GB-931674-A (GB)
Title: Improvements in and relating to electronic gating circuits
Inventor: BARANY THOMAS ERNEST
IPC: H03K19/09
Filed: 1959-04-06
Abstract: 931,674. Transistor switching circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 25, 1960 [April 6, 1959], No. 11609/59. Class 40 (6). In a logic circuit, a transistor has its base connected through individual resistors to input circuits, and a bias source, and a connector is provided for detachably connecting in parallel with the bias resistor an additional resistor to modify the function of the circuit. A number of switches S1 . . . S4, which may be electronic, are connected via resistors R1 . . . R4 to the base of transistor T1 and a source of bias is connected to the base by an adjustable resistor R5, the value of which is set such that applying signals to a predetermined number of inputs will switch the transistor to its conductive conductive state. A second transistor T2 may be coupled to the first as an inverter. The variable resistor comprises a main resistor, which may be continually variable, and a number of interchangeable additional resistors.
Patent GB-713496-A (GB)
Title: Improvements in or relating to the preparation of 2-benzothiazolyl sulfene morpholide
IPC: C08K5/00
Filed: 1952-05-08
Abstract: 2-Benzothiazolylsulphenemorpholide is manufactured by mixing N-chloromorpholine with 2-mercaptobenzothiazole in an inert organic solvent (e.g. a hydrocarbon of the benzene series) in the presence of sufficient hydrogen chloride acceptor to neutralize the hydrogen chloride as it is evolved.  The hydrogen chloride acceptor may be sodium or potassium carbonate, or preferably an amine.  In the latter case it may be regenerated from its hydrochloride, formed as a by-product and separated by filtration, by slurrying this salt in an inert solvent and neutralizing with ammonia.  The N-chlormorpholine may be prepared in situ by chlorinating morpholine in the same solvent as is to be used in the condensation.  In examples: (1) morpholine is dissolved in toluene and treated with gaseous chlorine, the solution is filtered to remove morpholine hydrochloride formed as a by-product, more morpholine is added (to act as hydrogen chloride acceptor) followed by 2-mercaptobenzothiazole, the mixture is cooled and later heated and stirred, then filtered to remove morpholine hydrochloride and the solvent is evaporated; the morpholine hydrochloride is slurried in benzene, ammonia is bubbled through the stirred mixture, the ammonium chloride formed is filtered off and the morpholine chlorinated to provide the starting material for a fresh batch; (2) pyridine and 2-mercaptobenzothiazole are added to a solution of N-chloromorpholine in toluene with stirring and cooling, the mixture then being warmed, pyridine hydrochloride filtered off and the solvent evaporated.  Other suitable solvents and amines are listed.
Patent GB-166732-A (GB)
Title: Improvements in machines for producing cement pipes
IPC: B28B21/40
Filed: 1920-04-27
Abstract: 166,732. Sattelkau, P., and Dombrink, H. April 27, 1920. Centrifugal machines.-A machine for producing concrete pipes comprises a revoluble tube having means for producing a vacuum therein as the tube rotates. In the form shown, a tube composed of three flanged portions 5, 6, 7 bolted together, and having heads 9, 10, is mounted on shafts 11. 12 revoluble in bearings 3, 4 on pillars 1, 2, and is driven by belt gearing 22, 23, 24. Ribs 13, 14, 15 on the members 5, 6, 7 form a central track riding upon rollers 18, 19, 20, of which 20 is adjustable. The shaft 11 is hollow in order that air may be sucked out of the tube during its rotation through a pipe 25. The con. crete, reinforced or plain, is introduced into the tube, and this is rotated until the material hardens sufficiently, all air bubbles being meanwhile removed from the plastic mass by applying vacuum suction to the pipe 25. A modification is described wherein a tube which is not airtight may be run into and out of a fixed casing which may be closed and exhausted. In this case, the tube is supported by two medial tracks, and bevel gearing, driven by external belt gearing, is provided within the casing to rotate the tube.
Patent GB-734087-A (GB)
Title: Stiffened woven fabrics
IPC: D03D1/00
Filed: 1952-05-08
Abstract: 734,087. Woven fabrics. AMYOT, P. May 8, 1952, No. 11692/52. Class 142(4). A stiffened fabric comprises warp threads 6, 9 forming a continuous face and warp threads 4, 5, 7, 8 woven with weft threads D, E, F, G, H, J to form a pocket enclosing a stiffening cord X each pocket being locked to the continuous face on either side of each cord X by binder threads B, C, which are woven only with the warp threads 6, 9. The warp threads forming the pockets are passed beneath the binder threads B, C between successive pockets. Each stiffening cord may comprise a core having a cover treated with water repellent sizing. The entire fabric may be treated with a water repellent sizing.
Patent GB-178333-A (GB)
Title: Improvements in or relating to table knives
IPC: B26B3/02
Filed: 1921-04-23
Abstract: 178,333. Watts, J. R., (trading as Watts, J.). April 23, 1921. No Patent granted (Sealing fee not paid). Screwed sockets and tangs.-The bolster B of a knife-blade A is formed with a tapped hole for the screwed wire tang D, and the handle E has a tapped hole for screwing it on to the tang.
Patent GB-375920-A (GB)
Title: Improvements in or relating to the extraction of sugar from desiccated sugar-beet cossettes
IPC: C13B10/08
Filed: 1931-04-21
Abstract: Desiccated sugar beet cossettes are given a pre-soaking treatment in a tank of water or dilute sugar juice to effect a reconversion as to moisture-content of the said cossettes to raw or fresh cossettes, prior to the introduction of the cossettes into the extracting apparatus or diffusion battery proper.  The tank is repeatedly charged during the diffusion cycle and discharged to the diffusion vessels.  The ratio of pre-soaking liquid to cossettes is reduced when it is desired to obtain concentrated juices.  The treatment is continued until the air present is replaced by liquid and the cossettes are agitated or stirred, while avoiding the formation of dust, particularly when in the form of compressed bales or blocks.
Patent GB-1172594-A (GB)
Title: Writing Instrument with Convertible Cartridge
Inventor: SHEA JOHN H
IPC: B43K7/00
Filed: 1967-03-14
Abstract: 1,172,594. Ball-point pens. J. H. SHEA. 14 March, 1967, No. 11798/67. Heading B6P. A ball-point pen cartridge having the writing tip 24 inserted into the tube 22 of the cartridge, is retained in the barrel 10 of the pen by a metal adapter 30. The adapter, which has a shoulder 32 for engaging an abutment 14 of the barrel, is crimped at 38 to the cartridge tube. To provide a tight fit for the adapter, fragile " shear-ribs " (40, Fig. 3) are provided on the inside surface of the forward end of the barrel.