baber/WOPTO huggingface dataset:
Patent GB-459747-A (GB)
Title: An improved process for obtaining metal compounds of water-soluble keratin splittingproducts
IPC: A61K38/01
Filed: 1936-01-30
Abstract: Metal keratin compounds of therapeutic value are prepared by hydrolyzing keratins with mineral acids to the point of complete or nearly complete solution, evaporating the product in vacuo at a low temperature, and treating an aqueous solution of the residue with gold, silver, mercury, lead, bismuth, or antimony salts in such quantity that the products contain at least 5 per cent of silver or the equivalent amount of other metal.  In the case of bismuth the product separates out directly, in the case of lead by precipitation with an organic solvent such as alcohol, whilst the other metal products require neutralization with alkali followed by precipitation with an organic solvent.  When using sulphuric or phosphoric acid for the hydrolysis, the product is neutralized with baryta or barium carbonate before evaporation.  If desired, the acid hydrolysate may be dialyzed, preferably whilst still acidic, before the evaporation treatment.  When preparing a gold compound, the aqueous solution of the keratin hydrolysate is preferably saturated with sulphur dioxide before adding the inorganic gold salt.  According to the examples, (1) human hair is hydrolyzed with hydrochloric or sulphuric acid to the point of dissolution, dialyzed while acid or after neutralization, and evaporated to dryness; auric chloride solution is added little by little to an aqueous solution of the residue until the precipitate does not go into solution on shaking, when caustic soda is added and the product precipitated with alcohol; a gold compound is similarly prepared from the product of hydrolysis of human hair or wool with sulphuric acid which has been neutralized with barium carbonate prior to its evaporation, and also from an acid hydrolysate obtained by treating human hair with hydrochloric acid and subsequently evaporating; (2) the hydrolysate of human hair with hydrochloric acid is dialyzed while acid and evaporated to dryness; an aqueous solution of the residue is saturated with sulphur dioxide, a solution of auric chloride cautiously added, and the gold product precipitated with alcohol from the neutralized solution; (3) silver nitrate or mercury acetate solution is added in portions to a solution of a keratin hydrolysate prepared as in (2) and the silver or mercury product precipitated with alcohol from the neutralized solution; a bismuth compound is prepared from the same hydrolysate by merely adding bismuth ammonium citrate to its aqueous solution; (4) the hydrolysate of human hair with hydrochloric acid is dialyzed after neutralization and evaporated to dryness; to an aqueous solution of the residue. lead acetate solution is added and the lead product precipitated with alcohol from the solution, which may or may not be neutralized; an antimony compound is similarly prepared using sodium antimonyl tartrate, but the final solution must be neutral or weakly alkaline.  Specifications 357,189, 412,366, and 437,769 are referred to.
Patent GB-165068-A (GB)
Title: Heating and decanting apparatus for use in purifying the feed water of steam generators
Filed: 1921-01-21
Abstract: 165,068. Kestner, P. June 12, 1920, [Convention date]. Feed-water, heating.-In apparatus for purifying boiler feed-water, fresh feed and blow-down water entering a heater through inlets C, A, respectively, flow in opposite directions through separate helical passages formed by plates. The two waters enter a decanting chamber through a common pipe E and pass through a filter F at the top of the chamber. Openings I, H are formed in the bottom of the heater and of the chamber for the removal of sediment.
Patent GB-510332-A (GB)
Title: Improvement in coated abrasive articles
IPC: B24D11/00
Filed: 1938-01-28
Abstract: 510,332. Flexible abrasive articles. BEHRMANNING CORPORATION. Jan. 28, 1938, No. 2843. Convention date, Feb. 6, 1937. Drawings to Specification. [Class 60] In abrasive coated articles comprising a synthetic resin binder and a pliable backing subject to variations in area with humidity changes, the backing is of less area than the coating so that a concave abrasive surface is avoided, the surface in use being either flat or convex. The backing may be paper, vulcanized fibre or the compound sheet material described in Specification 510,330. When using resins which can be cured below 212‹F. such as drying oil modified phenol-aldehyde resins or a mixture of phenolaldehyde resin, oil modified alkyd resin and china wood oil, with or without manganese, cobalt or lead driers, Kraft paper is pretreated with blown china wood oil and dried, after which the binder and abrasive are applied. The resin is cured by heating at a temperature of 160‹- 190‹F. moisture, e.g., steam or water-spray, being introduced into the drying chamber. The sizing adhesive is cured under similar conditions. Alternatively the resin may be cured in the usual manner, a swelling agent such as water applied to the uncoated surface of the backing, e.g., by spraying, sponging, painting, or from a felt wetting roll, and the article dried. Instead of water, paraffin emulsions, 95 per cent. methyl alcohol, or equal parts of water and acetone or ethyl alcohol may be used. This treatment is also suitable when the resins described in Specification 510,328 are used. The amount of water added is usually 10-30 per cent. In making abrasive discs part of the water may be applied before cutting out and after further water has been applied they are stacked under pressure and allowed to dry at ordinary temperature. The backs of the discs may be coated with tung oil, linseed oil, paraffin emulsions, or cellulose derivative or synthetic resin lacquers or varnishes. Specifications 378,014, 379,379, and 398,907 also are referred to.
Patent GB-419782-A (GB)
Title: Method of coating zinc or cadmium base metals
IPC: C23C22/24
Filed: 1934-01-27
Abstract: Zinc or cadmium base metals, i.e. the metals zinc and cadmium, alloys composed principally of zinc or cadmium, and metals coated with these metals or alloys, are immersed in an acid solution containing chromate or dichromate ions and the anions of a mineral acid, the ratio of the chromate or dichromate ions to the mineral acid anions and the time of immersion being such that a visible coloured coating is formed on the metals.  The mineral acid used is sulphuric acid, hydrochloric acid, or nitric acid.  The solution may consist of chromic acid and a free mineral acid or a salt of a mineral acid or both free acid and a salt, or it may consist of a dichromate and a free mineral acid.  Details of the relative proportions and times of immersion are given.  After immersion the article is cleaned by rinsing in cold water and dried, for example by an air blast.  Before coating, the articles are cleaned by cathodic treatment for 1/2 -3 minutes in a hot solution of trisodium phosphate, followed by successive rinsings in hot and cold water.  The treatment of the following alloys is referred to:-(1) an alloy containing 1 per cent copper and 0,01 per cent magnesium, the balance being zinc containing 0,05 per cent lead; (2) an alloy of zinc with 4,1 per cent aluminium, 2,7 per cent copper, and 0,03 per cent magnesium; (3) an alloy of zinc with 4,1 per cent aluminium and 0,04 per cent magnesium; (4) an alloy of zinc with 4,1 per cent aluminium, 1,0 per cent copper, and 0,03 per cent magnesium ; (5) an alloy of zinc with 4,1 per cent aluminium and 1,25 per cent copper.  British Specifications 252,020, 305,651, [both in Class 82 (i)], 314,769, [Class 82 (ii)], 340,104, 374,826, 376,534, 376,988, 378,645, and U.S.A. Specification 1,663,215 are referred to.
Patent GB-973130-A (GB)
Title: High rate sand filter
IPC: B01D21/02
Filed: 1963-01-24
Abstract: 973,130. Sand filters. I. SILVERMAN. Jan. 24, 1963, No. 2991/63. Heading B1D. A water filter comprises a generally cylindrical tank A, Fig. 1, closed to the atmosphere, and having a water inlet 40 at the top adapted to admit water under superatmospheric pressure to the interior of the tank, a downward opening underdrain B spaced apart from the bottom of the tank, e.g. by means of legs or brackets (not shown), said underdrain (Fig. 3) having a solid top 15 and sides 16 but an open bottom 17 provided with screening means 18, and a discharge line 34 connecting the interior of the underdrain with a point external to the tank. The filter is operable with only a fine siliceous filtering medium 14, e.g. sand, or a mixture of sand and fine siliceous gravel therein, unsupported by layers of sized aggregate. Preferably, the tank diameter exceeds its straight wall height. Screening means 18 may comprise a woven screen, or, as in Figs. 4 and 5, a plurality of foraminous spaced apart plates 19 and 21 angularly oriented so that their respective foramina 20, 22 are out of registration. In operation, the multiport valve 32 is set in the filter position, and the motor 28 started. Under the action of the pump 27, preferably a self-priming centrifugal pump, water (e.g. from a pool) enters suction line 23 and passes through the screen 25 of hair catcher 24, through pump 27, discharge line 30, multiport valve 32, and line 40, fitted with air vent 41 to ensure the absence of an air cushion under head 10, to the filter and thence through underdrain B and conduit 34, and valve 32 to recirculation line 36 and back to the pool. Pressure gauge 31 is used to indicate when backwashing is necessary. Backwashing is effected by turning handle 33 to the backwash position and opening stop valve 38, flow through suction line 23 and discharge line 30 remaining as before, but liquid now leaving the valve through conduit 34 and entering underdrain B. Section 35 of the conduit is flexible, to prevent the transmission of vibration from the motor or pump. Water passes upward through the filter, dirty water passing out of line 40, through valve 32 and conduit 37 to the sewer. Backwashing is stopped when clear effluent water is seen through sight glass 39. Handle 33 is now'moved to the waste position. Water now enters line 23, passes through pump 27, discharge line 30 and valve 32 directly into sewer line 37, thus removing dirt accumulated during backwashing from valve 32. Handle 32 is now moved to the filter position and filtration resumed. Fully automatic operation may be achieved through the use of a time clock.
Patent GB-1218392-A (GB)
Title: Engine-compressor type machine
Inventor: CAMPBELL JAMES STOUFFER
IPC: F02B75/28
Filed: 1968-01-20
Abstract: 1,218,392. Direct acting compressors. BRAUN-CAMPBELL ENG. Ltd. Jan. 20, 1968, No. 3143/68. Heading F1B. A direct acting compressor comprises a framework 15, a combustion cylinder 14 in the framework a pair of opposed engine pistons 16 reciprocably dispersed in the combustion cylinder, a pair of compressor cylinders 12, 13 aligned one at each end of the combustion cylinder, a pair of compressor pistons 17, 18 slidably disposed one in each compressor cylinder and a pair of piston rods 19 one extending from each end of the combustion cylinder and each connecting one of the engine pistons to one of the compressor pistons. A synchronizing mechanism includes a crankshaft 24 having throws spaced at substantantially 180 degrees, the crankshaft being mounted in the framework for rotation about an axis extending perpendicularly with respect to the axis of the combustion cylinder, a pair of rocker beams 21 each pivotally connected to the framework for oscillation about an axis parallel to the axis of the crankshaft, means pivotally joining each one of the engine pistons to a respective one of the rocker beams at a point on the rocker beam spaced from the connection 55 of the rocker beam to the framework and a pair of connecting rods 25, rotatably connected one to each of the opposite throws of the crankshaft and each pivotally connected to a respective one of the rocker beams at a point 64 between the connection of the rocker beam to the framework and the point of connection on the rocker beam of the means joining the rocker beam to the engine piston. The compressor may comprise a high pressure stage 13, as shown, or may comprise two low pressure stages. The two stage compressor can also be twinned to increase the delivery and thus may be achived by placing two units side by side and utilizing a common crankshaft. Means for varying the stoke of the pistons, is described.
Patent GB-510449-A (GB)
Title: Improvements in or relating to fittings for use with glazing bars
IPC: E04D3/08
Filed: 1938-02-01
Abstract: 510,449. Glazing roofs. WILLIAMS & WILLIAMS, Ltd., and WILLIAMS, J. Feb. 1, 1938, No. 3157. [Class 20 (iii)] Relates to end stops E<2>, Fig. 1, and fixing shoes F<1>, for use with glazing-bars A of the kind in which the glass is supported by projections A<2>, Fig. 2, and resilient clips C. According to the invention, the end stop comprises an L-shaped strip engaging the underside and end of the glazing-bar and a shoe F<1> secured to the bearer D and embracing the strip and the flanges A' of the glazing-bar to fix these parts together. After attaching the shoe to the bearer, the strip is placed in position with its side recesses x engaging the shoe and its ribs E<4> resting on the bearer. The glazing-bar A is then inserted by sliding it through the projections F' on the shoe, its base engaging the upper surface of the strip and its end passing between projections E<3> on the strip. The fixing screws F<5> of the shoe may be replaced by a central bolt. Specification 501,417 is referred to.
Patent GB-1531101-A (GB)
Title: Web-handling apparatus and photocopy machines incorporating the same
IPC: G03G21/00
Filed: 1976-01-27
Abstract: 1531101 Supporting photoconductors on drums PITNEY-BOWES Inc 27 Jan 1976 [27 Jan 1975] 3164/76 Heading B6C [Also in Division C2] An electrophotocopier employs photoconductive web 16 which is carried by hollow rotary drum 32 having doors which collapse and are replaced by rollers 52 and 54 which extend outwards through the drum to give the web a planar configuration for flash exposure.
Patent GB-271375-A (GB)
Title: An improved underframe for automobile vehicles
IPC: B62D21/06
Filed: 1927-02-04
Abstract: 271,375. Reik, H. May 29, 1926, (Convention date]. Frame components, forms of; threepoint suspension; axles and axle structures.-The frame consists of a tube 3 and branches 1, 2, between which the engine 6 and gear 7 are supported. The drive shaft 20, Fig. 3, is mounted in the upper part of the tube 3. The balance gear is covered by a casing 13 bolted down over a slot in the tube 3, by bolts 14 which serve also to secure a bracket 15 for a, transverse spring.
Patent GB-585140-A (GB)
Title: Improvements relating to the detection of vibrations
IPC: G01H11/06
Filed: 1945-02-09
Abstract: 585,140. Electrical determination of vibrations. KING, A. J., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Feb. 9, 1945, No. 3348. [Class 37] [Also in Group XIX] Apparatus for determining the components of a vibration comprises a frame supporting six resistance strain gauges arranged in quadrature, one end of each gauge being connected to a central mass 3, the gauges being connected in pairs in Wheatstone networks. As shown, the frame comprises two circular hooks carrying screws 7 whereby the tension in the gauge elements may be adjusted. The elements, say 4, 4a, Fig. 2, are in circuit with resistances 11, 12, 16, the last being variable to adjust the zero or datum line on the indicating instrument 14 which may be a cathode ray tube or other oscillograph. The current supply may be direct or alternating and the three pairs of gauges may have a common lead 10 to the indicating apparatus in the form of a three-element oscillograph giving the x, y and z components on a common screen 19. The amplification of the bridge circuits may be controlled separately at 18. From the known amplification and sweep adjustment of the oscillograph, the frequency and amplitude of each component can be determined. Modulated frequency envelopes (Fig, 7, not shown) or half-wave rectified records (Fig. 8, not shown) may be used. The gauge element may comprise a fine resistance wire wound lengthwise on a strip of flexible insulating material provided with terminals and hooks whereby quick changes of the gauge element or the centre mass can be effected.
Patent GB-521236-A (GB)
Title: Thermostatic control device
IPC: H01H37/54
Filed: 1938-08-09
Abstract: 521,236. Thermal switches. METALS & CONTROLS CORPORATION. Aug. 9, 1938, No. 3365/40. Convention date, Feb. 7, 1938. Divided out of 519,976 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 10, 1939. [Class 38 (v)] In a thermostatic control device, increase of temperature, e.g., from a heating wire 16, causes a bimetallic disc or like member 9 to snap downwards into its other position; normal fall of temperature is insufficient to cause the disc to return and resetting is effected by pressure on a push button 47 against the action of a spring 45. The button 47 carries a plate 43 shaped as in Fig. 9 and having projections 48 which bear on the bimetallic disc. The movement of the button is however insufficient to hold the disc in its upper position should a rise of temperature again occur. The bimetallic disc carries two contacts 12, 13 adapted to engage fixed contacts 36. The switch may protect a motor against overload, Figs. 12-14 not shown. Specification 178,103, [Class 38 (v)], is referred to.
Patent GB-1260823-A (GB)
Title: Improvements relating to character display devices
Inventor: SMITH CHARLES NORMAN
IPC: G09F9/37
Filed: 1970-01-23
Abstract: 1,260,823. Motive displays. FERRANTI Ltd. 23 Jan., 1970 [23 Jan., 1969], No. 3374/70. Heading G5C. A character display device comprises a plurality of character forming elements each comprising an elongated display surface 32 at one end of and approximately perpendicular to an arm 40 pivoted about an axis 42 parallel to the longer dimension of the surface, a permanent magnet 46 mounted on the arm and an electromagnet 48 adjacent the magnet to control the movement of the arm between two positions and first and second complementary surfaces 26, 14 of similar appearance which contrasts with that of the display surfaces arranged so that each display surface in one position obscures part of the first surface and in the other is obscured by the first or second surface. The second surface 14 comprises the front of a housing 10 into which fits a member 24 with a front wall in two parts 26a, 26b forming the first surface. The central element in one position is concealed behind a part of surface 26b. The arms are pivoted on the member 24 and the electromagnets on a backing member. The arms are moved by applying a suitable pulse to windings 50 on the reversible permanent magnet cores 48. A residuel core field retains the magnet 46 in the selected position.
Patent GB-607417-A (GB)
Title: Improvements relating to lathe and like tool-holders
IPC: B23B27/16
Filed: 1946-02-04
Abstract: 607,417. Tools; tool-holders. LLOYD, Ltd., R., and GRANTHAM, G. A. Feb. 4, 1946, No. 3399. [Class 83 (iii)] A lathe tool-holder for utilizing superfluous or disused milling-cutters comprises a shank 1 carrying a fixed jaw 4 and a movable jaw 10 pivoted at 9 and furnished with an operating arm 11. The jaws are closed by a screw 14. The lower jaw face may be formed to engage serrations on a milling-cutter blade and inclined laterally and longitudinally.
Patent GB-1377151-A (GB)
Title: Developer mixing apparatus
IPC: G03G15/08
Filed: 1972-01-25
Abstract: 1377151 Electrostatic printing apparatus XEROX CORP 25 Jan 1972 [28 Jan 1971] 3400/72 Heading G2H The amount of a toner/magnetic carrier developer conveyed by buckets 20, prior to its application by cascade to an electrostatic printing surface, is controlled by a magnet 45, which pulls exess toner from the buckets and returns it to a sump. Replacement toner, to take the place of that used up, is supplied from a dispenser 36, and is mixed with recirculated developer.
Patent GB-801977-A (GB)
Title: Improvements in or relating to movable panels
IPC: G01M9/04
Filed: 1957-01-31
Abstract: 801,977. Wind tunnels. SOC. DES FORGES ET ATELIERS DU CREUSOT S. A. Jan. 31, 1957 [Feb. 17, 1956], No. 3408/57. Class 4. In a wind tunnel having a variable crosssectional area, one wall 21 is fixed and the opposite wall consists of a fixed portion 2 and a movable portion 1, a connection between portions 1 and 2 being provided by a flexible panel 3 which passes over rollers 4 adjacent panel 2 and is tensioned by cables 5. The panel 3 consists of a flexible metallic sheet secured by bonded rubber elements 10 to the arcuate face 8 of each of a plurality of spaced cross members 6 each pivoted to a roller carriage 11 which carriages run in channel section tracks 13, 14 and 15, the rollers 4 being provided with teeth shaped to accommodate the profile of members 6.
Patent GB-544530-A (GB)
Title: Improvements in or relating to temperature control apparatus for mechanical refrigerators
IPC: F25B49/02
Filed: 1941-03-14
Abstract: 544,530. Automatic control systems; thermal switches. SHEPHERD, G. R. (Westinghouse Electric International Co.). March 14, 1941, No. 3500. [Class 38 (iv)) [Also in Group XXXVII] Temperature. Refrigerating apparatus, comprising an evaporator and motor driven compressor with a thermostatic switch 22 in heat exchange relation with the evaporator for opening and closing the circuit of the motor 15 has an electrical heater 30 in heat exchange relation with the thermostatic element and a single manually actuated member 67 controlling the circuits of motor and heater whereby the motor may be completely de-energized or continuously operated or the motor may be operated cyclically in response to one or more selected mean evaporator temperatures according to the setting of the member. The temperatures are varied by varying a resistance 64 in the heater circuit. A modified circuit compensating for external temperature conditions subjects the heater to thermostat control jointly within the motor. The thermostatic element is preferably a crinkled bi-metal snap disc 25 and operates a contact 35 against spring tension adjustable by a member 46 to determine response temperature a second adjustment 45 determining temperature range. The parts are hermetically sealed in a chamber 26. The heating element 30 may be inside or outside the chamber. Heat insulation 23 is arranged between the evaporator 18 and the thermostatic element.
Patent GB-983872-A (GB)
Title: Improvements in or relating to stereophonic pick-ups
IPC: H04R17/08
Filed: 1962-01-30
Abstract: 983,872. Stereophonic pick-ups. M. DE VRIES. Jan. 30, 1962, No. 3508/62. Heading H4J. A stereophonic pick-up comprises two transducer elements mounted within a housing, a stylus holder clampingly fitted into a tubular portion of a resilient support which is fixedly mounted in the housing, and resilient coupling means connected between each of the transducer elements and the tubular portion. A pick-up housing in two halves 1, 2 (Figs. 1, 2) carries piezo-electric transducer elements 3, 4. A stylus holder 5 is located in a cavity 7 in a one-piece resilient member. This member consists of block 8, tube 9, two arms 10, 11 and two resilient sleeves 12, 13 embracing elements 3, 4. Block 8 is clamped in complementarily shaped recesses in halves 1, 2. Cavity 7 may or may not extend into block 8. The stylus holder 5 is of non-circular cross-section and the cavity 7 is of complementary shape. In an alternative pick-up (Fig. 3) resilient sleeves 14, 15, forming resilient coupling means, each carry a hollow projection 16, 17. Rigid arms 18, 19, which may be hollow or solid, are clampingly fitted at one end to projections 16, 17 and at their other ends to projections 20, 21 of a tubular part 22. The clamping fits may be provided by mortice and tenon joints.