baber/WOPTO huggingface dataset:
Patent GB-699897-A (GB)
Title: Improvements in or relating to sculpturing glass
IPC: C03C14/00
Filed: 1952-08-18
Abstract: 699,897. Treating glass surfaces. CORNING GLASS WORKS. Aug. 18, 1952 [Aug. 30, 1951], No. 20754/52. Class 56. [Also in Group XV] A process for sculpturing glass for the production of articles bearing surface designs in intaglio or in relief or provided with perforations or filigrees comprises forming the design by means of the precipitation of opacifying crystallites of lithium silicate, barium disilicate or an alkali metal fluoride in the glass, the remaining portion thereof being left clear and then treating the glass with dilute hydrofluoric acid which preferentially dissolves either the opacified or the clear portion, the other portion being substantially unchanged. The glass used is either an opacifiable, photosensitive glass containing silver, gold or copper for example, as described in Specifications 636,152, 668,767, 684,134 or 699,898 or a thermally opacifiable glass containing an alkali metal fluoride as described in United States Specifications 2,339,975 and 2,292,684. With the first type of glass, a latent image of the design is formed therein by ultra-violet irradiation through a negative, the opacification of the image then being developed by a heat treatment, whilst in the second case, the opacified design is formed by the selective heating or cooling of the glass. After formation of the design, the glass is immersed in a stirred 20 per cent solution of hydrofluoric acid which dissolves the opacified part of the glass when this consists of soluble crystallites of lithium silicate or an alkali metal fluoride or the clear part when the opacified part consists of insoluble barium disilicate.
Patent GB-357669-A (GB)
Title: Improvements in or relating to pulverizers
IPC: B02C13/26
Filed: 1930-07-09
Abstract: 357,669. Impact pulverizer mills. ERIE CITY IRON WORKS, East Avenue, Erie, Pennsylvania, U.S.A. - (Assignees of St. Clair, C. D. ; 132, West Cooper Road, Erie, Pennsylvania, U.S.A.) July 9, 1930, No. 20782. Convention date, July 16, 1929. [Class 59.] A pulverizer comprises a split housing mounted on a base and a bearing support on each end of the housing, part of the housing being removable without disturbing the bearings or pulverizer elements. The housing comprises a rear portion 3, Fig. 1, attached to a base 1 and a front portion 4 secured to the rear portion by bolts 6. The housing has a feed compartment 7, Fig. 3, breaker compartment 8, pulverizer compartment 9 and fan compartment 10, the compartments 8, 9, 10 being of increasing diameter. Split linings 11, 13 are arranged in the compartments 8, 9 and annular disc diaphragms 36a, 12, 14 together with a feed endplate 15 and a rear endplate 28 separate the housing into compartments. The plate 15 is secured to the housing by a flanged spider 18 which carries the rotor shaft bearing 21 and the plate 28 is secured to a similarly flanged spider which carries a bearing 34. A worm 23 on the rotor shaft drives a feeder mounted on a feeder tube 27 which discharges on to the inclined bottom 35 of a shoot 27b. Paddles 37, 41 mounted on discs 38, 42 form the impact members and a fan 49 discharges the ground material through an outlet 51, the draught of the fan being regulated by openings 52 in the fan disc and regulable openings 54 in the endplate 28. The fineness of the material discharged is regulated by an adjustable tube 45 on the diaphragm 14. Specification 358,521 is referred to.
Patent GB-232483-A (GB)
Title: Improvements in manufacture of sheet metal hangers for shafting
IPC: B21D53/00
Filed: 1924-09-03
Abstract: 232,483. Bowen, R. H. Sept. 3, 1924. Bearings. - A sheet metal hanger for shafting is manufactured by embossing opposed margins of a suitably configured blank and retroverting the margins upon an intermediate portion of the blank. The blank, Fig. 5, is produced from the shaped sheet shown in Fig. 4 in one embossing operation in which the central web D is deformed to produce the seating 7<e>, 8<e> for a vertical adjustment sorew-and-nut mechanism, a corrugated. strengthening-rib 28e, and seatings 9<e> for horizontal screw-and-nut adjusting mechanism, while the side wings or legs are slightly curved, their lower parts 30e offset, and the marginal portions bent sharply along the lines K<d> and embossed as shown in Fig. 7. At the second stage two blanks. are secured back to back by spot welding and then the legs bent at right angles as shown in Fig. 10. Finally the edges 23<e> are bent right back to produce the completed article shown in Fig. 3 and are secured in position by rivets 22. In some cases the bending of the legs at right angles may be performed before the two blanks are put together.
Patent GB-1092887-A (GB)
Title: Device for maintaining mechanical oscillations, e.g. those of the balance wheel of a timepiece
IPC: G04C3/06
Filed: 1965-05-17
Abstract: 1,092,887. Clocks and watches. DAINI SEIKOSHA KABUSHKI KAISHA. May 17, 1965 [May 18, 1864; July 6, 1984; July 10, 1964; Nov.9, 1954], No.20815/65. HeadingG3T. A device for maintaining the oscillations of a timepiece balance comprises a permanent magnet 10 creating a magnetic flus path in a ferromagnetic core 7, a. projection 6 of metallic material of high permeability on the balance wheel 1 arranged to oscillate relative to and adjacent the core 7 and adapted, to cause magnetic flux variations therein, which are detected, by a coil 14 on the core 7, and an amplified for amplifying the electrical impulses in the coil 14 and applying them to a driving coil 13 for maintaining oscillation of the projection 6 and thus of the balance wheel 1: The amplifier comprises a transistor. In an alternative embodiment one end of the core 7 is formed as a disc coaxialwith the balance wheel..
Patent GB-384944-A (GB)
Title: Method for producing screw thread rolling dies with grooves and ribs only parallel but not intersecting
IPC: B21H3/06
Filed: 1932-07-25
Abstract: 384,944. Making platens for rolling screw-threads. FULD, H., 71, Frauentorgraben, and HESSDÍRFER, E., 10, Tiergartenstrasse, both in Nuremberg, Germany. July 25, 1932, No. 20953. Convention date, July 24, 1931. [Classes 83 (ii) and 83 (iv).] Platens R, R<1> for rolling non-intersecting but parallel screw-threads are made from platen blanks by rolling between them a hardened threaded die bolt r. The platens are bevelled at their ends n. Both platens may move in opposite directions or one may be stationary. The top platen is screwed down by bolts d as required after each pass. The grooves may be rolled to final form by preliminary intermediate and finishing threaded die bolts r. Both platens are adjustable sidewise.
Patent GB-421899-A (GB)
Title: Improvements in or relating to mechanical excavators
IPC: E02F9/28
Filed: 1933-07-26
Abstract: 421,899. Excavators. RANSOMES & RAPIER, Ltd., Waterside Iron Works, Ipswich.-(MacDougaId, S. P. F.; Beauharnois, Quebec, Canada) July 26, 1933, No. 21070. [Class 68 (i)] A wedge-shaped digging-tooth for an excavator has the wedge faces concavely curved for the whole or greater part of their length so that the thickness of the tooth increases progressively from the middle to the edges of these faces. In Fig. 2, the tooth has a central web E extending between V-arms of a shank to which it is secured by a bolt passing through aperture F ; lugs G assist in locking the tooth. The cutting edge H may be concavely curved and from the edge the wedge faces of the tooth are hollowed out at J, the curvature decreasing to a part K where the section is rectangular ; beyond the part K, the wedge faces are again concavely curved longitudinally and transversely at M, the thickness at the centre of the tooth being constant over a given distance. In Figs. 12 and 13, the tooth is integral with the shank P and has curved upper and lower faces Q, R. In Fig. 14, the tooth has curved faces J, S, similar to the faces J, M of Fig. 2, except that the central thickness at the part S does not remain constant ; this tooth has lugs T extending into recesses W on either side of a part Y of the shank 13, and is secured by a bolt U.
Patent GB-795255-A (GB)
Title: An improved magnetic compass
IPC: G01C17/00
Filed: 1955-07-21
Abstract: 795,255. Magnetic compasses. MONTRES ROLEX SOC. ANON. July 21, 1955 [June 4, 1955], No. 21110/55. Class 97(2) A compass case has a sighting line and a circular transparent cover bearing markings and friction mounted in the case concentric to the magnet so as to be manually movable. As shown, a case 1 is carried on a wrist strap 3 and formed with a groove 17, which forms a sighting line and a direction line 18. The pivoted member 8 carrying the magnet is enclosed in a hollow transparent box 4 with a circular rolling ball level indicator 16 formed in a cavity in the upper face. The member 8 is graduated both on the face and on the periphery where it may be observed through the edge of the box and read against a mark 13 on the case 1. A datum mark 14 is provided on the face of the box and another, not shown, diametrically opposite on the side. The marks and graduations are luminous.
Patent GB-279005-A (GB)
Title: Improvements in and connected with liquid fuel supply devices
IPC: F02M37/02
Filed: 1927-08-10
Abstract: 279,005. Jones, F. J. S. Aug. 10, 1927. Vacuum apparatus. -A device for raising liquid fuel, e.g. to supply a carburettor, operates by suction applied at the nozzle 8 which draws petrol through the supply nozzle 7 into the vessel 1 until it rises to the level of the bell 9 when continued suction draws it up into the bell until equilibrium is disturbed and the bell springs down against the resistance of bent up arms 10 and a spring 11, such movement closing the valve 12 to stop the suction and opening the air valve 13 so that the weight of the liquid opens the flap valve 4 and the liquid runs out into the main chamber 4 leading to the carburettor. The springs 11 then raise the bell 9 again and open the device to suction as before.
Patent GB-139117-A (GB)
Title: Improvements in or relating to toy balloons
IPC: A63H27/10
Filed: 1919-08-28
Abstract: 139,117. Ingram, W. F. Aug. 28, 1919. Inflatable balloons.-Relates to a device for closing the neck of a toy balloon after inflation. The device consists of a ring or tube a, Fig. 1, having at one end a rim b, behind which a groove c is formed. The neck of the balloon is passed through the tube a, and the end of the neck is turned back over the rim b so that its edge rests in the groove c. After inflation, the neck is twisted, when it passes through the tube a, as shown in Fig. 3, so as to close the passage.
Patent GB-126918-A (GB)
Title: Improvements in or relating to Safety Razors.
Inventor: RUTTER SYDNEY ERNEST
IPC: B26B21/18
Filed: 1918-12-18
Abstract: 126,918. Rutter, S. E., and Harris. D. J. Dec. 18, 1918. Razors, safety. A flexible double-edged blade 10 is clamped between a concave toothed guard 4 and a narrow backing-plate 8, thus enabling the greater part of both surfaces of the blade to be washed after the blade has been adjusted. The backing-plate 8 is provided with guide-pins 7 and with a screwed stem 9 engaging a screwed part 2 of a rotatable handle 1. The upper end 3 of the handle may be flanged over so as to secure it permanently to the guard 4.
Patent GB-816070-A (GB)
Title: Improvements in or relating to process of preparing oligomycin and the oligomycin resulting from said process
Filed: 1956-07-09
Abstract: Oligomycin is produced by growing an oligomycin-producing organism, e.g. Streptomyces diastatochromogenes, in an aqueous nutrient medium containing as whole or part source of carbon a fatty oil in excess of the requirements of the organism so as to prevent autolysis, separating the resulting mycelium oil from the broth when the antibiotic is in the mycelium and recovering the antibiotic along with some oil by extracting the mycelium with an organic solvent. After 10 to 30 hours, when the pH falls to below pH6, calcium carbonate is added to the broth.  After 3 to 5 days the antibiotic is recovered from the mycelium.  The fatty oil is used in quantities of at least 0.5 per cent w./v. and may be animal, especially lard, oil or vegetable, e.g. peanut, oil.  As part carbon source there may be used lactose, maltose, glucose, glycerol and starch.  In the example, the medium contains cane molasses, lard oil, ammonium monohydrogen phosphate, potassium dihydrogen phosphate and magnesium sulphate, the pH is adjusted to 7 and fermentation is at 29 DEG  C.  At pH 5.6 (24 hours) calcium carbonate is added and at the end of the fermentation period (96 hours) the pH is 7.0.  1 per cent w./v. additional lard oil containing a cationic surface-active agent is added to control foaming.  The mycelium is filtered from the broth and extracted with acetone.  After removal of the acetone, the product may be used as such or further purified by extracting with ethyl acetate and adding a petroleum hydrocarbon to precipitate the oligomycin which is then crystallized from aqueous ethanol.  Alternatively, the mycelium may be extracted with ethyl acetate or other water-immiscible organic solvents such as ethyl ether, propylene glycol or chloroform. Instead of acetone there may be used other water-miscible organic solvents such as methanol, ethanol, propanol and butanol.  The crude oligomycin and oil may be used as a fungicide and insecticide (see Group VI).ALSO:A mixture of oligomysin and oil obtained by the solvent extraction of the myselium separated from a broth in which an oligomycin-producing microorganism has been grown in a medium containing as a whole or part source of carbon a fatty oil used in excess of the requirements of the organism (see Group IV (b)) mixed with a liquid or solid carrier is used as a fungicide and insecticide.  Solid preparations are prepared with talc or clay. Trays may be prepared by dispersing the oily oligomycin in kerosene or water preferably with a surface active or emulsifying agent.  A xylene or benzene solution of the oily oligomycin emulsified with water containing sodium dodecyl phenyl sulphonate is mixed with "Freon" (Registered Trade Mark) to form an aerosol.  The antibiotic may also be put up in the form of an aqueous ethanol solution.
Patent GB-1309988-A (GB)
Title: Altimeter
IPC: G01C5/06
Filed: 1971-04-19
Abstract: 1309988 Altimeters LEIGH INSTRUMENTS Ltd 19 April 1971 [12 Feb 1970] 21332/71 Heading G1N [Also in Division H3] In an altimeter wherein an indicator 15 comprising a drum assembly may be driven either (a) directly from an aneroid drive 19, or (b) by a servo-motor 29 fed with an error signal derived at a control transformer 25 by comparison of a desired signal from an altitude computer 17 with an actual signal obtained by means of gear train 23 and indicative of the actual indicator reading, the motor is directly coupled to the input drum of the indicator without backlash. The motor may be of the drag-cup type and, as disclosed in Fig.3 (not shown), its shaft being directly connected to the input drum 37 which carries a gear arrangement to drive a pointer and thence to control the transformer 25. The drum 37 may be disposed between magnets to provide eddy current damping. A control circuit 25 effects stabilization of the error signal and comprises, as shown in Fig.7, a demodulator Q, Q 2  and AR1 providing a D.C. signal from the transformer output, an amplifier AR2, and a remodulator Q 3  Q 4  and AR 3  whose amplified output feeds the motor 29. A thermistor RT1 provides temperature compensation.
Patent GB-434900-A (GB)
Title: Improvements in domestic hot water supply systems
IPC: F24D17/00
Filed: 1934-07-21
Abstract: 434,900. Heating water. WILLIAMS, J. R., Ynisderw Road, Pontardawe, Swansea. July 21, 1934, No. 21385. [Class 64 (i)] In a domestic hot water supply system comprising an open cistern 11 connected by flow and return pipes 12, 13 to a boiler and in which the cold water supply 18 is connected directly to the return pipe 13 by aT-joint 14 as described in Specification 135,790, [Class 64 (i)], the T-piece 14 comprises a main cylindrical pipe 15 for connection at 16 to the return pipe 13, a branch pipe 17 formed integrally therewith entering the main pipe at right angles and curved at its outer end to lie parallel therewith for connection to the supply pipe 18 ; a lip 25 formed integrally with the pipe 15 projects into the throughway thereof above the branch pipe to direct water downwardly. A flattened cylindrical funnel 19 is fixed to the top of the supply pipe 18 below a float-controlled supply valve 24 and is fixed to the side of the cistern. The cistern has a hot water draw-off pipe 21 and an overflow pipe 22.
Patent GB-1500762-A (GB)
Title: Manufacture of anthraquinone
IPC: C07C46/02
Filed: 1975-05-20
Abstract: 1500762 Oxidation catalyst BASF AG 20 May 1975 [26 June 1974] 21446/75 Addition to 1346944 Heading B1E [Also in Division C2] A catalyst which contains vanadium pentoxide and titanium dioxide in a weight ratio of from 0.004:1 to 0.35:1 may be prepared by dissolving vanadyl oxalate in water, adding titanium dioxide and formamide and applying the resulting suspension to steatite spheres which have been heated to 300C.
Patent GB-169688-A (GB)
Filed: 1921-08-12
Abstract: 169,688. Soc. Chimique de la Grande Paroisse. Sept. 30, 1920, [Convention date]. Aromatic aminonitro compounds are obtained from the corresponding chlornitro bodies by heating with ammonium acetate under a reflux condenser. In an example, acetic acid of 80-95 per cent is saturated with dry ammonia and 1 : 2 : 4- chlordinitrobenzene slowly added at 125-130 C., ammonia gas being passed into the mixture to regenerate the ammonium acetate; 2 : 4-dinitraniline is obtained by filtration, the liquid being used again in the next operation. In a similar manner there can be obtained from the corresponding chloro derivatives 1:3-diamino-4: 6-dinitrobenzene, 1-chlor-4-amino-3: 5-dinitrobenzene, 1-chlor-2: 4-diamino-3 : 5-dinitrobenzene, 1: 2 - dichlor-4-amino-5-nitrobenzene, 1-amino-2-chlor- 4-nitrobenzene, 1-amino-4-chlor-2-nitrobenzene, and o-nitraniline.
Patent GB-597557-A (GB)
Title: Locking device for vehicle bodies
IPC: B60P7/13
Filed: 1945-08-22
Abstract: 597,557. Fastenings. DEMPSTER BROS., Inc. Aug. 22, 1945, No. 21517. Convention date, Nov. 16, 1944. [Class 44] [Also in Groups XXX and XXXII] A fastening releasably holds a body, container or the like on a support on a vehicle which has elevating mechanism for moving the body, the fastening being operated solely by the elevating mechanism. As shown, a removable body 11 has near its base an horizontal flange 12 which seats on a support 10 on a vehicle, the flange being provided by a channel iron 13 attached to the underside of the body 11. Rotatably mounted at 15 on the underside of the support 10 is a member 16 having a hooked extension 17 ;. also mounted beneath the support 10 are two vertically aligned studs 21, which are received in a slot 23 in a member 22 which projects upwardly through a slot in the support 10, so that its upper end 25 can be engaged by the lower end of the elevating mechanism 14. The member 22 is normally urged upwards, to the limit permitted by the lower stud 21, by a coil spring 26, one end of which is attached to the member 22, the other end being attached to a fixed member 28 on the support 10. Thus, when the elevating mechanism 14 lowers the body 11, its lower extremity engages the upper end 25 of the member 22 which is then moved downwards, causing the member 16, through the co-opera. tion of a pin 24 on the member 22 with a slot 20 in the member 16, to rotate anti-clockwise so that its hooked extension 17 passes through a slot 19 in the support 10 and engages the flange 12 of the body 11. When the body 11 is to be removed, the upward movement of the lower extremity of the elevating mechanism 14 results in the upward movement of the member 22, causing the member 16 to rotate clockwise so that its hooked extension 17 is withdrawn through the slot 19 and the body 11 can be moved. More than one locking device 17 may be used ; they may be disposed in transverse alignment with respect to the support 10 on the vehicle, so that all are operated simultaneously by the elevating mechanism 14, either a single flange 12 or separate flanges for each locking device being provided transversely of the removable body 11.
Patent GB-688561-A (GB)
Title: Improvements in refrigerators
IPC: F25B33/00
Filed: 1950-08-31
Abstract: 688,561. Refrigerating. EVANS, O. J. Aug. 16, 1951 [Aug. 31, 1950; Aug. 31, 1950], Nos. 21519/50 and 21522/50. Class 29 In a continuous-cycle absorption system in which the generator tube 10 is externally heated and a condenser tube 12 enters transversely from its upper end, the upper portion of the generator tube or part of the condenser tube is partially blocked and the surface area for cooling increased by an internal tube 33, 38 in contact with the wall of the tube and closed at both ends except for holes 32, 34, 36, 37. Both the tubes 10, 12 may be so constricted. The tube 33 serves to locate the top of the pump tube 19. Specification 688,560 and 688,562 are referred to.
Patent GB-122618-A (GB)
Title: Improvements relating to the Treatment of Tinned Scrap.
Inventor: ROGERS HALLEWELL
IPC: C25C1/14
Filed: 1918-01-10
Abstract: 122,618. Rogers, Sir H., Lancaster, M. L., Walter, C. M., and Jackson, J. Jan. 10, 1918. Tin, obtaining.-An electrolyte for the recovery of tin from scrap and waste consists of a 7-10 per cent solution of caustic soda or potash in which is dissolved 1 per cent of stannous chloride. It is preferably heated to 180‹ F. by a steam pipe. The scrap is placed in a drum as described in Specification 122,025. The scrap may first be washed in a caustic alkali or other solution to remove paper &c. The drum is then removed to the electrolytic vat and rotated or oscillated. After electrolysis, the drum is washed in water and the liquid is concentrated for restoration to the electrolyte. Two vats are preferably used alternately for washing and evaporating. The drum is next removed to a solder-recovery plant, and the residual scrap is discharged into baling presses.
Patent GB-215484-A (GB)
Abstract: 215,484. Bayles, J. H. G. Feb. 27, 1923. Circular machines ; straight-bar machines.-The pirns, from which the yarn supply is drawn off parallel to their axes, are. rotated to let off the yarn without putting on or taking off any twist. Fig. 1 shows the pirns A carried by spindles B which revolve with the cam-ring of a circular knitting-machine and are geared to a fixed wheel F. In a circular knitting-machine with rotating needle-cylinder and stationary cam-ring and yarnfeeders a clutch, controlled by a pattern cam &c., is provided between the, pirn spindle and its driving-mechanism. Fig. 4 shows in plan an arrangement for a straight-bar knitting-machine. The pirn-spindles are operated by belt mechanism from a shaft P on which slides a saddle S reciprocated by fixed racks Y, Y' and a. pinion V<1>. This pinion is mounted on a lever W moved alternately in opposite directions by a link X connected to the frictionally-driven thread carrierbar of the knitting-machine. The shaft P is rotated from the pinion V<1> through spur and bevel gearing carried by the saddle S.