baber/WOPTO huggingface dataset:
Patent GB-875468-A (GB)
Title: Improvements in or relating to variable inductances
Inventor: RITCHIE ROY
IPC: H01F17/06
Filed: 1958-05-28
Abstract: 875,468. Transformers and inductances. NEOSID Ltd. March 23, 1959 [May 28, 1958; Nov. 28, 1958], Nos. 17025/58 and 38420/58. Class 38 (2). In an assembly of two or more coupled variable inductors having each a toroidal core 1 (Fig. 7) the effective cross-section of each core is varied by movement in a vertical, chordal or radial hole of a tuning slug 4 of ferrite or iron dust. The tuning slug may have a threaded brass extension co-operating with tapped hole in the base 6 or vertical member 11 (Fig. 10) of former 5. Alternatively the hole in the core may be parallel-sided and tapped, the slug being adjusted by screwing it therein. The tuning slug may be flexibly connected to a screwed carrying stem by P.V.C. sleeving. The variable inductors may form an I.F. transformer and may be housed in suitable recesses 4 (Fig. 2b) of moulding or may be arranged in two mouldings 9 (Fig. 3a) spaced apart as necessary by spacers 10 or shims. Coupling may be by a common winding or by leakage fields. The inductors and tuning arrangements may be encapsulated in casting resin. Where the cores are of low permeability and coupling is by leakage fields, the apparatus is sealed in a screening can 12 (Fig. 4) held on a base plate 13 by clips 14.
Patent GB-272696-A (GB)
Title: Improved means to convert reciprocating motion to rotary or/and rotary motion to reciprocating
IPC: F16H19/04
Filed: 1926-07-08
Abstract: 272,696. Roberts, C., and Elliot, W., M. July 8, 1926. Driving-gear. - In segmental pinion and rack gearing, applicable to steam engine driving gears, the segmental pinions are of special form having ordinary teeth over an arc of 90 degrees, 3-3A. Fig. 3, and, at each end thereof, teeth 7, 8 formed on a pitch curve of parabolic form determined by striking an axis 5-5a, at a distance from the point 3 or 3A equal to the radius of the pitch circle. The co-operating racks 9, 10 have straight portions of normal form terminating at each end in teeth 11 forming counterparts for the teeth 7, 8, the starting tooth 11A of each rack being spring mounted. The invention is shown applied to a compound steam engine with expansion valves arranged in conjunction with the ordinary valve gear to maintain adequate cushioning.
Patent GB-1045862-A (GB)
Title: Improvements relating to screw-threaded fasteners
IPC: F16B5/02
Filed: 1964-04-24
Abstract: 1,045,862. Locking nuts; anchoring. T. DZUS, F. X. CLARKE and D. H. KANE. April 24, 1964 [July 12, 1963], No. 17109/64. Heading F2H. A lock nut comprises plate-like body 22 having a central, aperture 23 provided with thread portions consisting of helical segments 26 formed integrally with the body and extending round the aperture so as to be engageable with the threads of a stud 12, there being provided spring arms 28 which project from the peripheral edge of the body in a reversely curved bend and terminate in abutment portions 29 adapted to engage the thread 21 of the stud. The abutment portions 29 are bent in a direction away from the body and terminate in helical edges having a pitch corresponding to that of the segments. The nut is attached to a supporting plate 16 by rivets.
Patent GB-313169-A (GB)
Title: Improvements relating to the manufacture of vegetable wool
IPC: D01C1/02
Filed: 1929-06-04
Abstract: 313,169. Lambrecth, J. J. June 9,1928, [Convention date]. Processes; fibres, treating.-Vegetable wool is obtained and also a fibre free from any tendency to putrefy, by a process comprising mechanical treatment for rendering the fibres flexible and separating the small films and particles of gum adhering to the fibres, then treatment in a hot solution containing 3 grams oleic acid, 2 grams mineral oil, 1 gram of 36‹ Be. soda lye, and 1 gram sodium carbonate per litre of water, the liquid being circulated for 1¢ to 4 hours. The fibres thus lubricated are immersed for 15 minutes to 3 hours in rapidly circulating cold caustic soda of 10‹-24‹ Be., and, after washing, are neutralized in a rapidly circulating acid bath. Then follows bleaching with sodium hypochlorite or the like, washing, and, finally, treatment for ¢-2 hours with a softening solution containing neutral soap and sodium mono-sulphide, wringing and drying. Specification 294,101, [Class 140, Waterproof &c., fabrics], is referred to.
Patent GB-739891-A (GB)
Title: Improvements in or relating to vehicle seat cushions
IPC: B60N2/70
Filed: 1954-06-11
Abstract: 739,891. Seat and back cushions. FORD MOTOR CO., Ltd. June 11, 1954 [July 2, 1953], No. 17201/54. Class 52 (4). A car seat or back cushion comprises zig-zag springs 22 spanning a frame 21, resilient padding 29, 32 overlying the springs and upholstery which is divided into two sections 12, 13 by a beading 16 lying in a curve, e.g. as shown in Fig. 1. The beading has a depending flange 17 to which are stitched the edges of the upholstery sections and a listing strip 37 having a reinforced lower edge 38. Hog clips 39 connect this listing to a wire 41 which is itself secured by hog clips 46 to clips 42 clinched to the springs 22 at appropriate points.
Patent GB-277623-A (GB)
Title: Improvements in or relating to lasts, trees and fillers for boots and shoes
IPC: A43D3/02
Filed: 1927-06-29
Abstract: 277,623. Kelnhofer, F. Sept. 16, 1926, [Convention date]. Trees. - To produce a last for footwear, the wearer stands on a flat surface, a block of normal heel height is placed under the heel, the foot is compressed both longitudinally and laterally, and a true copy like a cast of the foot in this position made except for the toe portion. This true copy is used as the last, the toe portion being of usual last shape. If desired, the sole contour of the last may be of usual form, the footwear then being provided with an insole, Figs. 4 and 5, shaped on the inner side to conform to the foot and on the outer aide to conform to the last. Trees and fillers for the footwear may be similarly shaped.
Patent GB-856369-A (GB)
Title: Machines for combing textile fibres
IPC: D01G19/16
Filed: 1958-05-30
Abstract: 856,369. Combing machines. RIETER & CIE A. G., J. J. May 30, 1958 [June 1, 1957], No. 17374/58. Class 120(1). The nipper plate 3 of a rectilinear combing machine is supported by pivots on cheeks 1, 2 fixed to the plate ends and on a single bracket 7 fixed at the mid-point of the rear edge of the plate. Plate 3 fits into recesses in the cheeks in which it may be secured by synthetic resin glue. Each cheek is pivoted at 26 to an arm 5, which supports adjacent ends of two nipper plates, and is itself pivoted about the comb shaft 4. Bracket 7 is pivoted to a rock arm 9. The upper nipper 13 is pivoted to cheeks 1, 2 on pins 14, 15. A spiral spring 40, Fig. 2, surrounds a hub 39 coaxial with each pin and its outer end presses a feed roller 23 into a recess 24 in the corresponding cheeks and closes the top of the recess.
Patent GB-182780-A (GB)
Title: Improved process for the manufacture of the coating of the dielectric of condensers
IPC: H01G13/06
Filed: 1922-06-24
Abstract: 182,780. Pfiffner, E. July 5, 1921. [Convention date]. Condensers.-A sheet of a dielectric material such as cellulose ester or perxanthogenate is provided with a metallic coating, e.g. of silver or copper, by slight saponification in an alkaline or acid bath followed by wetting with a metalprecipitating solution. The sheet may subsequently be heated to 100-150‹ C. to increase the adherence of the metal.
Patent GB-867798-A (GB)
Title: Heat resistant foamed plastics
Inventor: SIMON ELI
IPC: C08J9/00
Filed: 1959-05-22
Abstract: Cellular polyurethanes are obtained by simultaneous reaction of 100 parts an alkyd resin of acid number 0,5-75, 1 to 50 parts of a polyhydric alcohol or blend thereof and 75 to 400 parts of an arylene polyisocyanate, the water content of the alcohol and resin being 0,1 to 5 parts.  Simultaneous reaction is defined and includes premixing alcohol and resin and then adding polyisocyanate.  Prior to such addition the polyisocyanate may have 0,03 to 15 parts of ethyl or benzyl cellulose, natural or chlorinated natural rubber, vinylchloride-vinyl acetate copolymers, polyvinyl acetate, polystyrene, polydichlorostyrene, polymeric acrylate and methacrylate, acrylate-methacrylate copolymers, and polyvinyl butyrol incorporated. Optional ingredients are quaternary ammonium bentonites, fillers, e.g. metal leafing powders, mica dust, titania, air flow silica and silica aerogel.  Lists of suitable reactants are given.ALSO:Cellular polyurethanes are obtained by simultaneous reaction of 100 parts of an alkyd resin of acid number 0,5-7,5, 1-50 parts of a polyhydric alcohol or blend thereof, and 75-400 parts of an aryline polyisocyanate, the water content of the alcohol and resin being 0,1-5 parts.  By simultaneous reaction is meant either mixing all three reactants at the same time, or premixing the resin and alcohol and then adding the polyisocyanate.  Prior to such addition the polyisocyanate may have 0,03-15 parts of ethyl or benzyl cellulose, natural or chlorinated natural rubber, vinyl chloride-vinyl acetate copolymers, polyviniyl acetate, polystyrene, polydichlorostyrene, polymeric acrylare and methacrylate, acrylatemethacrylate, copolymers, and polyvinyl butyral incorporated.  Optional ingredients and quaternary ammonium bentonite salts, fillers e.g. metal leafing powders, mica dust, titania, air-float silica and silica aerogel. Lists of suitable reactants are given.
Patent GB-822851-A (GB)
Title: Fishing reels
Inventor: BALL GEORGE FINNEY
IPC: A01K89/01
Filed: 1957-06-03
Abstract: 822,851. Fishing reels. BALL & CO. Ltd., G. F. May 30, 1958 [June 3, 1957], No. 17511/57. Class 48. In a fishing reel of the fixed spool type having a bail-shaped pick-up 12 carried by a flyer body 13, the line guide on the pick-up is a complete eye or ring 11 and, at casting, the pick-up is moved to a position (shown in chain lines) in which the eye 11 is coaxial with the fixed spool 10. The pick-up is moved from the reeling-in position (shown in full lines) to the casting position by a shell 17 which is slidably mounted on the flyer body 13 and is moved forwardly against spring action by a hand lever 18 pivoted on the reel casing. The ends of the pick-up are pivoted to the flyer body and near the ends the pick-up is bowed rearwardly to pass to the rear of pins 20 carried by the shell 17. When the shell 17 is moved forwardly its edge engages the bowed portions of the pick-up and in forcing the pick-up to its casting position it causes the bail to become tensioned so that it returns automatically to the reeling-in position when the hand lever 18 is released. The pick-up is retained in reeling- in position by a spring catch 23 secured to the flyer body and released by the edge of the shell 17.
Patent GB-1388601-A (GB)
Title: Data stores employing field effect transistors
IPC: G11C7/12
Filed: 1972-04-17
Abstract: 1388601 Semiconductor data stores SIEMENS AG 17 April 1972 [20 April 1971] 17552/72 Heading H3T The initial fall in potential (to UES Fig. 2, not shown) of a precharged bit line B, when an interrogated F.E.T. cell SZ storing a 0 begins to discharge its capacitance CB, is used to trigger a second discharge circuit F.E.T. M1 which accelerates the discharge of CB. The bit line is precharged to VDD by M5 in response to a signal P (Fig. 6, not shown). At the same time a F.E.T. M4 resets a bi-stable M2, M1 to the M1 OH condition. Then an interrogate pulse RD causes SZ to provide a discharge path for CB, or not, according to whether a 0 or a 1 is stored; and RD also supplies operating voltage to M2 through its load F.E.T. M3. When the voltage on CB falls far enough (UES) to trigger the bistable to its other state, M1 conducts and discharges CB. To read out the information from a number of bit lines (Fig. 7, not shown) the respective bi-stables (EL) store the information, and are in turn connected by a respective F.E.T. M6 to a data line DL whose capacitance CA is precharged by a F.E.T. (M7) and whose output controls a readout amplifier (LV). The bistable discharge circuit is in each ease preferably connected substantially at the centre of its respective bit line.
Patent GB-1036633-A (GB)
Title: Device for the supervision and measurement of irradiations of the human body using an artificial sun lamp
IPC: G04F3/02
Filed: 1963-05-03
Abstract: 1,036,633. Irradiation. BELMAG-ZURICH BELEUCHTUNGSUND METALLINDUSTRIE A.G. May 3, 1963 [May 3, 1962], No. 17569/63. Heading H5R. A device for the measurement and supervision of irradiations of the human body with an artificial sun lamp comprises a control clock 10 with a device for the setting of different radiation times, wherein with the clock there are associated various tables, e.g. a dial as shown in Fig. 2, on which the time intervals of radiations to be effected on different days are entered graphically, some of these tables being provided with a special colour pattern, which colour corresponds to a specific skin reddening caused by a test irradiation of specific time duration. The clock may actuate an acoustic signal which is instigated on the elapse of the set radiation time, the sun lamp being manually switched off with a switch 7 provided in the housing 6 of the clock, or the sun lamp may be automatically switched off by the clock. In operation, a test dial is positioned on the clock as shown, Fig. 5, and the pointer 12 of the clock moved to the commencement of the test time T. The redness of the skin, e.g. of a part of the arm, produced by this is compared with the colour present of the reverse of each dial, and the dial having the nearest colour is chosen as the subsequent day-to-day exposure control.
Patent GB-1033976-A (GB)
Title: Process for the manufacture of 1, 3, 5-trioxane
IPC: C07D323/06
Filed: 1963-05-03
Abstract: 1,3,5-Trioxane is prepared from highly concentrated aqueous formaldehyde solutions by continuously heating an aqueous solution containing about 30-70% by weight formaldehyde or paraformaldehyde and about 0.05 to 2 mole per cent (referred to the solution as a whole) of an acid, removing a mixture of trioxane, formaldehyde and water at the top portion of a fractionating stage, condensing said mixture, extracting the trioxane from said mixture in an extraction stage at an elevated temperature not exceeding 92 DEG  C. with the aid of a water-immiscible solvent boiling at a high temperature with respect to the boiling point of trioxane (113 DEG  C.), separating the resulting phases, returning the aqueous formaldehyde phase to said fractionating stage, and fractionating the trioxane-solvent phase to give pure trioxane.  Specified solvents are chlorinated hydrocarbons, for example, a -chloronaphthalene and trichlorobenzene. Examples are given.  A comparative example illustrates a process in which the condensed distillate is extracted with methylene chloride, the organic phase is separated, shaken with ammonia and dried over calcium chloride, and trioxane is crystallized from the resultant solution.
Patent GB-440030-A (GB)
Title: Improvements in or relating to brush holders for electric motors
IPC: H01R39/38
Filed: 1934-06-14
Abstract: 440,030. Brush-holders for dynamoelectric machines. BAKER, W. S. GRAFF-, 30, Leonard Court, Kensington High Street, London, and LONDON PASSENGER TRANSPORT BOARD, 55, Broadway, Westminster. June 14, 1934, No. 17621. [Class 35] A brush-holder consists of a lidded box of insulating- material containing the spring and a pigtail for connecting the brush to a terminal for connection to the external circuit. In the form shown, three concentric springs located in a cup 20<a> press the brush 3 against the commutator and the brush is connected by pigtail 9 to terminal 10 carried on the insulating box 6 which has a lid 7 secured by a toggle clip 16. The box is radially adjustable on a splined support 31 which is movable axially by means of a bolt and slot connection. The box may accommodate several brushes arranged in a row parallel to the commutator axis.
Patent GB-499961-A (GB)
Title: Improvements in and relating to doors for the gas-tight closure of rooms
IPC: E06B5/14
Filed: 1937-06-24
Abstract: 499,961. Doors for resisting fluid pressure. TRIGGS, W. W. (Mauser Kommandit-Ges.) June 24, 1937, No. 17625. [Class 123 fi)] [Also in Groups X and XXV] A gas-tight door for protection against gas attacks has a resilient sealing strip 4 retained by an angle-iron at its edge and is adapted to be pressed uniformly against the frame by means of lever-bars 36 which are first extended over lugs 18 on the frame and then depressed on the lugs to effect the transverse sealing movement of the door. The levers are actuated by a cam-slotted disc 45, which during the final closing movement is raised by cams and rollers 46, 47 against the spring 50 to cause the clamping movement of the levers, Figs. 2 and 3. The clamping movement may also be given by a screw-slot 61 in the spindle of the handle and a stud 62, Fig. 7. The door has pin hinges and slotted sleeves and may be lifted when bolted by a lever, and an angle-iron ledge 19 fixed near the bottom. The sealing strip is carried around the corners in attachments 70 having curved grooves 69. Rollers are provided on the pins 53 engaging the cam slots, and spherical washers 54 may be mounted on the pins on each face of the slotted disc. A spyhole 33 and a handle 32 are provided on the door. The levers are retained against actuation when the door is open by springs 63, Fig. 8, these being released by the door frame 18 during the closing movement.
Patent GB-120789-A (GB)
Title: A New or Improved Reinforced Hollow Building Slab or the like and a Method of and Means for Producing the same.
Inventor: CHRISTIN LOUIS
IPC: E04C2/04
Filed: 1917-11-29
Abstract: 120,789. Christin, L. Nov. 29, 1917. M o u l d s ; processes.-Relates to reinforced hollow building slabs comprising two parallel parts a, b, Fig. 2. formed of plaster, cement &c., moulded or cast upon a sheet of reeds &c. d, sewn together, such plates being united by transverse ribs f, formed with perforations f<1> to receive reinforcing-rods. Fig. 4 shows a mould for producing the slab shown in Fig. 2, and comprising a base supporting a back k, ends i, and a front wall l, which is perforated for the passage of tapered cores m and core rods r. In operation, the sewn reeds &c. are lodged in the mould, and the material is poured in to envelop the reeds &c. Withdrawal of the cores m is facilitated by means of screwed rods o working through nuts n and engaging keys p passing through elongated slots in the cores m and bearing against the wall l. Fig. 8 shows a modified mould, in which the cores m pass through both walls k, l and can be knocked out.
Patent GB-562918-A (GB)
Title: Improved means for paving unstable soil in the construction of roads, runways and the like
IPC: E01C9/08
Filed: 1942-12-14
Abstract: 562,918. Roads; runways ; floors. CARNEGIE-ILLINOIS STEEL CORPORATION. Dec. 14, 1942, No. 17764. Convention date, Aug. 26, 1942. [Classes 20 (iv) and 107] In aeroplane runways or other paved traffic bearing areas, or paved storage areas, formed of metallic plates each with a number of spaced lugs along one edge and a number of similarly spaced openings on the opposite edge to receive the lugs of an adjacent plate, each lug comprising a head and a shank, the openings have a shape similar to but slightly larger than that of the lugs ; with the head of the opening substantially in the plane of the plate and the shank thereof in a plane inclined to that of the plate, whereby on inserting the lugs in the openings and turning the plates to horizontal position, the heads of the lugs are disposed beneath the bottom of the adjacent plate so as to effect an interlock therewith. In Figs. 3, 4, 6 and 7, each plate has staggered rows of preferably elliptical openings 10 with inwardly and downwardly extending flanges 12 preferably diminishing in height towards the ends of the apertures to provide constant section moduli ; along one edge of each plate are outwardly and downwardly extending T-shaped lugs 3, and along the opposite edge are similarly shaped but slightly larger openings 6 with the heads 7 of the openings substantially in the plane of the plate and the stems 8 thereof in a down-turned portion of the plate. To form a paved area, at the centre thereof, two rows of plates may be laid with their lugged edges adjacent, and the lugs 3 thereof interlocked as in Fig. 4, and secured together as by binding wire 13 ; lateral plates are then applied by inserting the heads of the lugs 3 into the heads 7 of the openings of the first plates and turning them downwards so that the shanks of the lugs enter the stems of the openings and the heads of the lugs engage below the outer edges of the openings. Some or all the openings are provided with lips 9 extending over the lugs 3 to limit vertical movement of the adjacent plate ; if removal of such plate is desired, the lips 9 are bent to clear the lugs. In another form, the heads of the openings and lugs 3 are substantially elliptical, and in a further form, the lugs and openings are L-shaped. In Fig. 14, the lips 9 are omitted, slits 22 being then formed on each side of the openings 7 and the tongues 23 so formed are bent to retain the lugs 3 ; in Fig. 16, instead of slitting the plates, corners 24 are bent to engage the lugs 3. Specifications 562,473 and 562,681 are referred to.
Patent GB-421554-A (GB)
Title: Improvements relating to the production of substitutes for common salt
IPC: A23L27/40
Filed: 1933-06-22
Abstract: A substitute for common salt is produced by forming an ammonium salt of an aliphatic hydroxy-acid, or a salt of an aliphatic hydroxy-acid with an aliphatic base which contains one or two amino groups and two or more hydroxy groups in the molecule, the salt being precipitated or crystallized out in admixture with an additional substance which obviates the acid flavour of the salt and brings out the desired salty flavour, for example another of said salts or an indifferent or neutral substance such as lactose or soluble starch.  Where two of the salts are used they may be formed simultaneously and evaporated to dryness or precipitated out by alcohol, acetone &c., or the alkaline earth salts of the hydroxy-acids may be reacted with ammonium oxalate or sulphate and, after filtration, the filtrate concentrated and the salts precipitated by adding alcohol, acetone, &c., together with a little strong ammonia.  Where the additional substance is not one of the salts it may be dissolved in the filtrate containing a single salt and the filtrate evaporated and the salt and additional substance precipitated, e.g. by alcohol, &c.  In examples, a solution of tartaric and malic acids in alcohol is saturated with dry ammonia gas and the precipitated salt mixture separated, or the reaction may be carried out in water and precipitation effected by adding alcohol and ammonia; calcium gluconate and anhydrous calcium citrate are reacted in solution with ammonium oxalate, the filtrate is separated and the salt mixture precipitated with alcohol and a little ammonia; an aqueous solution of diethanolamine, malic acid and a solution of gluconic acid are mixed and the solution obtained evaporated and the salt mixture precipitated with alcohol and a little ammonia; calcium gluconate is reacted with ammonium oxalate and the filtrate separated and lactose dissolved in it and is then concentrated and the mixture of salt and lactose precipitated by adding alcohol and a little ammonia.