baber/WOPTO huggingface dataset:
Patent GB-991239-A (GB)
Title: Improvements in sewing machine presser feet
IPC: D05B29/00
Filed: 1964-04-17
Abstract: 991, 239. Sewing machines. UNION SPECIAL MASCHINENFABRIK G.m.b.H. April 17, 1964 [April 18, 1963], No. 15927/64. Heading D1G. A sewing machine presser foot comprises a chaining finger which is made of spring plate and is pivoted to the end of the presser foot remote from the feed-in end, and which is biased by a helical spring located substantially midway between the pivot of the chaining finger and the free end thereof. The base portion 2 of a sewing machine presser foot is pivoted at 3 to the shank portion 1. A chaining finger 5, made from spring plate, is formed at its rear end with a bearing bar 6 embracing a pivot pin 4 located at the rear end of base 2. Finger 5 is aligned with a groove 7 formed in the undersurface of base 2, and has at its front end a hooked portion 8 which extends upwardly through the needle aperture 9 in base 2. A helical spring 11 bears downwardly on finger 5 midway between its ends. The radius of bar 6 is greater than the radius of pin 4 by an amount substantially equal to the thickness of the thread chain, and the distance between the axis of bar 6 and the lower surface of finger 5 is equal to the distance between the axis of pin 4 and the lower surface of base 2.
Patent GB-145020-A (GB)
Title: Improvements in working doors for blast furnaces
IPC: F27D1/18
Filed: 1920-06-14
Abstract: 145,020. Thal, C. de. Feb. 20, 1918, [Convention date]. Blast furnaces; doors. - The pivoted working-door of a blast furnace is operated by a pinion engaging a curved rack. In the construction shown in Fig. 1, in which the door is pivoted about its lower edge, the rack 7 is carried by the door and the pinion 14 is mounted on a support fixed to the furnace. In a modification, the door is pivoted about its upper edge, the rack is fixed, and the pinion is carried by the door. A water-cooling coil is embedded in the door, and the supply and exhaust pipes therefor are taken through the door pivots. Peep-holes, in which may be fitted porcelain tubes 18, are provided in the doors. Specification 145,019 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also a construction of blast furnace, Fig. 1 (Cancelled), in which the shaft 1 is extended at the lower end to form a fore-hearth 2 having a tap-hole 7 for the metal, and electrode or burner apertures 5 in the crown. In the shaft at the opposite side is a tap-hole 6 for siag, and at a higher level in the walls are two sets of openings 3, 4, the former for taking samples &c., and the latter for the liquid or gaseous fuel burners by which the charge is heated. The burner nozzles are mounted so that they can be moved to and from the burner opening, raised and lowered to suit openings of different height, and angularly adjusted. This subject-matter does not appear in the Specification as accepted.
Patent GB-476057-A (GB)
Title: Improvements in and relating to methods of charging the generator-absorbers of absorption refrigerating apparatus
IPC: F25B17/08
Filed: 1936-06-08
Abstract: 476,057. Refrigerating. NORMELLI, W. B. June 8, 1936, No. 16023. Convention date, June 8, 1935. [Class 29] Absorption systems.-Alkaline. earth metal halides used as absorbents in reversing systems are treated before charging into the generatorabsorber vessels by adding water to the salts or allowing them to absorb water from the air by exposure and then heating until hydrogen halides and oxides or basic halides are formed. Exposure of the charge to water after this treatment does not result in the presence of free water in the final charge. The heating treatment may be followed by further treatment, such as mixture with other materials, before the charge is introduced into the generator-absorber.
Patent GB-529425-A (GB)
Title: Improvements in mulli-cylinder internal combustion engines of the v-type particularly for aircraft
IPC: F01L1/053
Filed: 1939-05-31
Abstract: 529,425. Valve gear ; magnetos &c. FIAT SOC. ANON. May 31, 1939, No. 16028. Convention date, Sept. 22, 1938. [Classes 7 (ii)] 7 (iv) and 7 (vi)] In a multi-cylinder engine of the V-type, particularly for aircraft, in which the propeller is driven through reducing-gear from a common crank shaft, the cam shaft of each cylinder row is driven from the propeller shaft through a secondary shaft also geared to the magneto, while the pumps and supercharger are driven from the crank-shaft. Fig. 1 indicates an engine with crank shaft 1 driving the propeller shaft 3 through gearing 2, two overhead cam shafts 8 being driven from the shaft 3 through bevel gearing 4, 4a, two intermediate shafts 5, bevel gearing 6, and spur gearing 7. Two magnetos 10 arranged within the engine contour are driven by gearing 9 from the shafts 5. The lubricating-pumps 11 are driven from the crank shaft, and two water pumps 14 by gearing 12, 13. The rotor 16 of the compressor, which is arranged at the centroid of the transverse section of the opposite end of the engine, is driven through gearing 17 and damping-means which serves further to reduce the torsional oscillation of the system.
Patent GB-1162329-A (GB)
Title: Pen and Chart Recorders
Inventor: STALEY WALTON FREACE JR
IPC: G01D9/28
Filed: 1968-04-03
Abstract: 1,162,329. Recording-apparatus. LEEDS & NORTHRUP CO. April 3, 1968 [April 27, 1967], No. 16066/68. Heading G1J. A pen and chart recorder that can be assembled to record and indicate a desired number of electrically-represented variables by mounting the desired number of pen modules 12, 20, 24, in a stack on a frame 10, Fig. 3, adapted to carry a servomotor for each variable, in which each pen module, Fig. 2, comprises a pen carriage 54 slidable along guide rods 50, 52 spanning a cutaway portion of a plate 32 and carrying contacts 86, 88 bridging a slidewire 76 and bus-bar 78 in a self-balancing measuring system which controls the servomotor corresponding to the module in response to the corresponding variable, the plate 32 also carrying pulleys 70, 72 guiding a cable connecting the pen carriage 54 to the servomotor to be driven by its capstan 120 (122, 124). Each pen carriage has an electrically insulating body 54a and bracket 54b adjustably carrying the pen 12b (20b, 24b) and indicator 12a (20a, 24a). The bracket 54b is pivotally mounted with respect to the body 54a and biased for limited rotation to urge the pen into contact with the chart 16. The pen modules are mounted on the frame 10 in a stack by means of adjustable male-female stud and screw combinations 100, 102 co-operating with holes 108 in the rearward portions of the plates 32 and support the modules in spaced cantilever fashion. Each pen may be connected to its own ink reservoir by a capillary tube.
Patent GB-497024-A (GB)
Title: Improved manufacture of printing stencils
IPC: G03F7/12
Filed: 1937-06-10
Abstract: 497,024. Stencils. 1. G. FARBENINDUSTRIE AKT.-GES. June 10, 1937, No. 16140. Convention date, Aug. 1, 1936. [Class 100 (ii)] [Also in Group XX] Stencils for use on duplicators are prepared photographically by mounting a thin porous flexible sheet such as Yoshino paper or linen or silk gauze, on a carrier such as paper, coating the porous sheet with a silver halide emulsion, exposing to light, developing with a hardening developer, for example pyrocatechol free from sulphite, washing out the unaffected gelatine, and removing the stencil from its carrier during or after the washing-out process. The porous material is secured to the carrier by means of an adhesive such as cellulose varnish.
Patent GB-270115-A (GB)
Title: Ball- or roller bearing and method of manufacturing the same
IPC: F16C33/60
Filed: 1926-06-26
Abstract: 270,115. Wottle, H. June 26, 1926. No Patent granted (Sealing fee not paid). Moulds.-The outer race-ring of a ball or roller bearing is cast in two parts 1, 1<1>. Fig. 1, with stepped joints 4 which intersect the generating lines of the races, the race surfaces being chilled by metal chills during casting. To cast the outer race-ring, cores 18, 19 and a metal core 20, Figs. 5 and 7, are assembled in a box 17 and packed round with sand. The core 20 may be in two parts hinged together, or it may be divided obliquely to the direction of insertion. If the inner race-ring is cast, a metal core ring of taper section may be used in the mould.
Patent GB-122212-A (GB)
Title: Improvements in Apparatus and Processes for Liquefying Atmospheric Air and Separating the same into its Constituents, Oxygen and Nitrogen.
Inventor: PLACE JAMES FRANK
IPC: F25J3/04
Filed: 1917-11-05
Abstract: 122,212. Place, J. F. Nov. 5, 1917. Pressure-reducing valves.-In apparatus for liquefying air, highly-compressed air is allowed to expand by passing it through a pressure-reducing valve comprising high and reduced pressure ports or chambers 36, 37 with an intermediate doubleseated valve 33, 34 on the end 32 of a rod 31 provided with a piston 30' in a cylinder 30, which is connected by a pipe 40 to the chamber 37. The rod 31 is acted upon by a spring 38 which is adjusted by a nut 39 to give the required reduction of pressure, say 50 atmospheres. The air at reduced pressure leaves the valve at 4. Specification 105,106, [Class 8 (ii), Air and gases, Treating &c.], is referred to.
Patent GB-1335008-A (GB)
Title: Process for desalinating salt water such as sea water
IPC: F16J12/00
Filed: 1972-04-07
Abstract: 1335008 Desalination D BLIESENER 7 April 1972 [8 May 1971] 16165/72 Heading BIB In a process in which salt water is separated into brine and fresh water in separation zone 4 at a supercritical pressure of approx. 450 atm. absolute pressure at which the specific liquid heat of the salt water and fresh water and of the brine increases only slightly up to the critical temperature, circulation of liquids in the apparatus is effected by double pistons 13 and 20 which are spring biassed towards their dead centre positions to reduce accelaration loses when the direction of the double piston motion is reversed. Pistons 13 and 20, used in conjunction with valves 7, 8, 14 and 15 and relief valves 9, 10, 16 and 17 pump salt water centrally up through heat exchangers 5 and 6 where it is heated to approximately the critical temperature to separation zone 4, further heat being supplied in tube 21 from fresh water passing through steam heated superheater 3. Fresh water separated at 4 is collected via cubes 2, heat exchanger 6 and tube 11, and residual brine is drawn off via tubes 22, heat exchangers 5 and tube 18. The heat in tube 21 may be alternatively supplied by an alternating electric field, an alternating current, microwaves or solar rays.
Patent GB-1425237-A (GB)
Title: Non-dusting dimensionally stable dyestuff granulates and processes for their production -
IPC: D06P5/00
Filed: 1973-04-04
Abstract: 1425237 Non dusting dyestuff compositions CIBA-GEIGY AG 4 April 1973 [7 April 1972] 16184/73 Heading D1B Non dusting dimensionally stable dyestuff granulate comprises one or more water-soluble dyestuffs, 0.1 to 20 per cent by weight of the total weight of granulate of a cationic or anionic dispersing agent and/or wetting agent and 5 to 50 per cent by weight of a binding agent e.g. dextrin, maize starch, potato starch, gelatin, lignin sulphonate or cellulose derivative. The granulate preferably has a particle size of at least 1 mm. and may also contain nonionic dispersing or wetting agents. Other additives include fillers e.g. an inorganic salt, urea or sugar, humectants e.g. glycerin, effervescent agents e.g. ammonium bicarbonate or a mixture of sodium bicarbonate and tartaric acid, thickeners e.g. carboxymethyl cellulose or polyvinylpyrrolidone or a drying agent e.g. based on silicon dioxide. The granulate is prepared by mixing the dry or moist dyestuff with the dispersing and/or wetting agent, binding agent and other optional additives with prior grinding or dispersion of the dyestuff into a homogenous mass and then forming the granules which may be lamella, spherical, cylindrical, hollow-cylindrical or in tablet form and then finally drying. Water-soluble acid, basic and reactive dyes are used.
Patent GB-594113-A (GB)
Title: Improvements in or relating to rotary explosion motors
IPC: F02B53/00
Filed: 1945-06-26
Abstract: 594,113. Rotary internal-combustion . engines. NEZELOF, J. June 26, 1945, Nos. 16318 and 16319. Convention dates, March 23, 1944, and March 21, 1945. [Class 110 (ii)] The engine, of a four-stroke type, has two or four pistons 3a which co-operate with rotary abutments 7, these and a rotor 2 being geared. together, the gears having teeth missing over parts of their peripheries to allow a piston to engage and drive an abutment when it engages an abutment slot 9a. Combustion gas enters through a port 14 and the gas is fired when a piston has compressed it into a slot 10a or 10b, by a plug or other means, the gases being exhausted through a port 15. A slot 17 allows rapid expansion of the burnt gases. Grooves may be provided in the frictionally-engaging surfaces for sealing purposes.
Patent GB-705421-A (GB)
Title: Improvements in or relating to ball floats
Inventor: EWER HENRY NELSON
IPC: F16K33/00
Filed: 1951-07-11
Abstract: <PICT:0705421/IV (a)/1> A ball float is made by moulding a resin, such as polythene, in two hemispherical parts, A1 and A2, which are flanged (B) whereby they may be adhesively secured, to one of which parts is integrally moulded a lug C which is cored for attachment to the threaded end of a lever arm &c.  The lug does not penetrate through the hemisphere and may contain a metal washer or disc E.
Patent GB-167054-A (GB)
Title: Device for turning over music and like leaves
IPC: B42D9/06
Filed: 1920-06-18
Abstract: 167,054. Robinson, F. F. June 18, 1920. Leaf-turners.-An oscillating arm A provided with a finger A<1> for engagement with loops D<1> of paper &c. mounted on each leaf of music &c. is operated to engage the finger with the loop on the leaf to be turned and carry the leaf over. The finger A<1> then drops and releases itself from the loop ready to return to the original position. The arm A projects through the slot B<1> of a casing B and is pivoted on an horizontal pin within a slot E' of a vertical spring axle E. The arm A can be moved through a distance determined by stops B<2> by means of a spring pulley H which carries a pin H<2> acting on an arm E<2> of the axle E. The pulley H is connected by a cord K to an horizontal pulley J which is connected by another cord J<3> to a lever operated by a pedal. The pulley J carries a cam J<2> which by acting on an intermediate lever M lifts the arm A until a bracket A<2> thereon engages a semicircular gallery P and also raises the finger A<1> into engagement with the uppermost loop D' when the pedal is depressed to pull the cord J<3>. The arm A being thus brought into leaf-turning position, further movement of the pedal by acting on the pulley H, causes the arm A, carrying the leaf to be turned, to execute a movement through a semicircle, on completing which, the bracket A<2> drops off the gallery P and the leaf is released. The cord J<3> may be provided with a disconnectible coupling-member, to enable the leaf-turned to be readily attached or removed from a piano or music stand.
Patent GB-236228-A (GB)
Title: Improved means for stopping the downward motion of lift cabins
IPC: B66B5/28
Filed: 1925-06-26
Abstract: 236,228. Linget, A. P. June 26, 1925. Emergency power cut-off gear.-A plate 3 suspended from the cage by shock-absorbing devices 1 is provided at its centre with a rod 9 which is moved towards the cage when the plate 3 encounters an obstruction and by pushing in the stud 12 of a switch 11 breaks the circuit of the hoisting motor. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the switch breaks the circuit of a motor closing the supply or exhaust in a hydraulicallyactuated lift. This subject-matter does not appear in the Specification as accepted.
Patent GB-605463-A (GB)
Title: Binocular eyepiece
IPC: G02B25/00
Filed: 1945-06-28
Abstract: 605,463. Lens systems. BENDIX AVIATION CORPORATION. June 28, 1945, No. 16532. Convention date, June 30, 1944. Addition to 595,678. [Class 97 (i)] A telescope or binocular eyepiece of the type described in the parent Specification and consisting of a plano-convex lens L2 between convergent doublets L1, L3 is used with a front aperture stop O at a distance S from the focal plane F of the objective with which the eyepiece is used greater than 3¢f, and the outside surfaces of the eyepiece have radii R1 and R8 less than 5f, where f is the equivalent focal length of the eyepiece. This arrangement produces substantial correction for astigmatism. Numerical data for one example are given.
Patent GB-107714-A (GB)
Title: Improvements in Syringes.
Inventor: NORRIS WARREN JUSTUS
IPC: A61D7/00
Filed: 1916-11-18
Abstract: 107,714. Norris, W. J. Nov. 18, 1916 Syringes.-A syringe, especially adapted for veterinary practice, has a vacuum cup 10 surrounding the nozzle 5, through which the medicine is pumped. The nozzle is adjusted relatively to the cup, and can be clamped by a stuffing-box, and the medicine and vacuum unions 8, 16 are connected to their pumps by flexible tubing, a vacuum release plug 20 being provided.
Patent GB-935521-A (GB)
Title: Improvements in guards for the knives of microtomes or the like
IPC: G01N1/06
Filed: 1961-05-08
Abstract: 935,521. Microtomes. D. G. EVANS. March 16, 1962 [May 8, 1961], No. 16566/61. Class 97 (1). [Also in Group XXIV] In a microtome or the like wherein a workpiece on a carriage C is brought up to a fixed knife 1, the edge of the knife is guarded by a fixed bar 3 of transparent plastics, which is adjustably supported by end-pieces 4 so as to lie just above and in front of the knife edge, the end-pieces 4 having slots 5 engaged by clamping screws threaded into the knife 1. In a modification the slot at one end is replaced by a row of tapped holes. The bar 3 may be telescopic or may be slidable at one end in the piece 4. According to the Provisional Specification the guard bar is carried by discs shaped to fit over the ends of the knife.
Patent GB-281184-A (GB)
Title: Improvement in electrolytic cells
IPC: C25B9/19
Filed: 1926-06-02
Abstract: 281,184. Croad, A. K., (Jessup & Moore Paper Co.). June 2, 1926. Cells; diaphragms; electrodes.-An electrolytic cell for producing caustic soda, chlorine, hydrogen, &c., consists of a perforated iron &c. cathode 43, Fig. 1, with removable end walls 42, Fig. 2, arranged in the form of two parallel chambers, the dividing wall between which does not extend to the level of the top of the chambers so that above this wall the electrolyte in the two chambers communicates. The chambers are rendered liquid-tight by an asbestos &c. diaphragm 13 secured by sodium silicate &c. and carbon anode slabs 22 are arranged to project into the basket cathode and are supported from a concrete head 15 which constitutes a gas chamber and rests on the edge of an outer casing 1 supported on pedestals 3. Gas is led off through tubes 32, 34 and electrolyte is continuously supplied through a float-controlled pipe 30. A bar 14 is welded to the junction of the perforated cathode and the outer vessel serves as a negative electrode terminal.
Patent GB-1359325-A (GB)
Title: Lighting units
IPC: F21S8/04
Filed: 1972-05-24
Abstract: 1359325 Lighting fittings MERCHANT ADVENTURERS Ltd and C J ALDRIDGE 24 May 1972 [24 May 1971] 16588/71 Heading F4R A lighting fitting comprises a bowl-shaped gallery 11 adapted to be attached to a ceiling or other flat surface, a translucent diffuser 19 adapted to close the mouth of the gallery, and a trim member 17 adapted to surround at least that portion of the gallery which is not covered by the diffuser. The rim 14 of the gallery is formed with two annular channels adapted to make resilient snap engagement with beads 21, 18 on the diffuser and trim member, respectively. The gallery is preferably made of glass- and asbestos-filled polypropylene containing carbon to counteract ultra-violet degradation, the diffuser being made of polycarbonate and the trim of polystyrene, but other suitable plastics materials are mentioned.
Patent GB-953451-A (GB)
Title: Process for the preparation of cocoa butter substitutes as well as for the preparation of chocolate containing such substitutes
IPC: A23G1/56
Filed: 1960-05-11
Abstract: Cocoa butter substitutes are obtained from fats containing mono-unsaturated di-saturated triglycerides of palmitic and/or stearic acid and oleic acid, e.g. Shea butter, Borneo tallow, seed fat of Pentadesma butyracea, tallow and lard, but especially palm oil, by extracting the fat in a solid or semi-solid state in one or more stages at -5 DEG  to 10 DEG  C. with a total of 2-20 c.c. acetone per g. fat to remove a low melting fraction, and then extracting the residue in one or more stages at 10-35 DEG  C. with a total of 1-15 c.c. acetone per g. fat originally taken to obtain the fat in the form of an extract, the acetone being subsequently removed. It is preferred that the extractions be carried out by countercurrent extraction in two or more operations at successively increasing temperatures, suitably with the fat supported on a horizontally moving filter.  If desired, the fat may be mixed with a carrier such as kieselguhr or sand or crystallized on to Raschig rings. The product may be used in the preparation of chocolate (see Division A3).  Specifications 827,172, 841,316, 841,317, 953,452, 953,453 and U.S.A. Specification 2,678,937 are referred to.ALSO:Chocolates are prepared from (a) 182g. cocoa liquor (56% cocoa butter), 180g. sugar and 38g. cocoa butter substitute (b) 112g. cocoa powder (11% cocoa butter), 225g. sugar, 75g. cocoa butter and 87g. cocoa butter substitute (c) 112g. cocoa powder (11% cocoa butter), 225g. sugar and 163g. cocoa butter substitute, the substitute used being obtained from fats containing mono-unsaturated di-saturated triglycerides of palmitic and/or stearic acid and oleic acid, e.g. palm oil, by extracting the fat in a solid or semi-solid state in one or more stages at -5 to 10 DEG C. with a total of 2-20 ml. acetone per g. fat to remove a low melting fraction, and then extracting the residue in one or more stages at 10-35 DEG C. with a total of 1-15 ml. acetone per g. fat originally taken to obtain the substitute in the form of an extract (see Division C5). Specifications 827,172, 841,316, 841,317, 953,452, 953,453 and U.S.A. Specification 2,678,937 are referred to.
Patent GB-1177064-A (GB)
Title: Improvements in or relating to Knives
Inventor: ARMELIN EDOUARD ROGER
IPC: B26D1/02
Filed: 1966-04-15
Abstract: 1,177,064. Slitting apparatus. CHAMBON Ltd. 17 April, 1967 [15 April, 1966], No. 16668/66. Heading B4B. Apparatus for slitting flexible web material such as paper or cardboard comprises means for passing a web to be slit past a cutting edge in contact therewith and means for vibrating the cutting edge at a frequency in the sonic or ultrasonic range. In the form shown, a web 21 unwound from a roll 1 is slit and rewound into separate rolls 3, 4, the slitting being effected by the cutting edge 22 of a spring-loaded knife 6 pivoted to the framework 20 at 7, the knife being provided with a vibrator 9 actuated by a pulse generator 24 which may be mechanical or be an electronic multi-vibrator. The knife may also be provided with a heater. A plurality of knives may be used. In a modification, the web unwound from the roll (10), Fig. 3 (not shown), is divided into narrower rolls (13, 14), which are rewound, by means of a knife (16) co-operating with the circumferential groove (25), Fig. 4 (not shown), of a support roller (12), the knife, which is clamped at one end, being provided with a vibrator (18) actuated by a pulse generator (24).