baber/WOPTO huggingface dataset:
Patent GB-333653-A (GB)
Title: Improvements in means for controlling the flow of fluids
IPC: G05D16/18
Filed: 1929-05-27
Abstract: 333,653. Smith, R. May 27, 1929. Fluid-actuated valves.-A valve appliance for controlling the flow of one fluid by the pressure of another, such as the flow of ignitable gas to a dental vulcanizer by the pressure of steam generated, is characterized by the combination with a Bourdon-tube pressure gauge 1 of a second Bourdon tube 4 operating the gas valve 8 through link and lever mechanism, as shown, the mechanism being adjustable to cut off the gas at any desired steam pressure. The second Bourdon tube is disposed in a concentric chamber 2 at the back of the pressure gauge, the steam supply pipe 5 being branched, as shown, to feed the two tubes 1, 4. The adjustment means comprises a spindle 13 projecting outside the gas chamber and having a crank arm 15 connected to the link 16, the spindle 13 having an external finger moving over a graduated scale. The gas inlet and outlet passages are indicated at 10 and 9, respectively.
Patent GB-150132-A (GB)
Title: Automatic revolving chalk for billiard cue tips
IPC: A63D15/16
Filed: 1919-06-28
Abstract: 150,132. Boxall, F. G. June 28, 1919. No Patent granted (Sealing fee not paid). Billiards, chalking-devices for.-A device for chalking billiard cues comprises a cylinder with a three-start thread d and a cord ring r. A holder f carrying a cylindrical piece of chalk h engages the threads and rotates when pressed back by the cue tip. The holder returns under the influence of gravity. Reference has been directed by the Comptroller to Specifications 16082/91, 16305/00, 27792/06, and 15354/12.
Patent GB-312580-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08L95/00
Filed: 1929-05-27
Abstract: 312,580. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij, (Assignees of Kirschbraun, L.). May 26, 1928, [Convention date]. Emulsions, making.-Aqueous bituminous emulsions having a stability appropriate to their application, for example to the making of roads, or to paints are prepared by mixing, in suitable proportions, a " stable emulsion, i.e. an emulsion which coalesces only on the removal of the water phase with an " unstable " emulsion, i.e. an emulsion coaleseible in the presence of the aqueous phase, for example bv the addition of electrolytes or mineral matter. Examples of stable emulsions are those prepared with clay, or other colloidal mineral powders, or with gelatine, or starch combined with 2-10 per cent of tannic acid or its equivalent in tannic extract, as emulsifying agents. Unstable emulsions include those prepared with the aid, as emulsifying agents, of soaps, sulphonated oils or sodium silicate. Mixing may be facilitated by the adjustment of the PH value of one of the emulsions substantially to that of the other, for example, in the case of clay and soap emulsions, by the addition of trisodium phosphate to the former. Emulsions are referred to containing asphalt and water in proportions 60 :40, 70 :30 and 75 :25 and containing small amounts of clay, soap and gelatine respectively. The mixtures are, in general, less viscous than the component emulsions, for example mixtures of clay and soap emulsions in proportions between 100 :40 and 100 :200 respectively exhibit this feature and have a maximum fluidity when equal parts of the components are mixed. Specifications 288,821 and 308,051 are referred to.
Patent GB-161868-A (GB)
Title: Improved manufacture of dental cements
Filed: 1920-06-16
Abstract: 161,868. Schiff, S. June 16, 1920. Addition to 145,052. Metallic-oxide cements; plastic compositions containing oxychlorides; plastic compositions containing soluble silicates. - Colloidal silicic acid, either in the sol condition or as hydrogel, acetogel or alcogel, is added to certain classes of dental cements to increase their hardness and transparency. The cements in question are those composed of zinc oxide and a solution of zinc chloride or sulphate or a phosphate, and those containing silicates or polysilicates with oxides, phosphates, borates, &c., of various metals and a solution of phosphoric acid. Ths colloidal silicic acid may be added either to the solution or to the solid ingredient of the cement, or to both, or it may be used alone with metallic oxides.
Patent GB-719623-A (GB)
Title: Improvements in or relating to a method of making a dense crystalline magnesia product
Inventor: HICKS JAMES CLENNY
IPC: C01F5/06
Filed: 1951-07-10
Abstract: Fifty to nintey-five per cent. of inactive periclase and 5 to 50 per cent. of active magnesia, both containing at least 95 per cent. magnesia, not more than 2 per cent. silica and not more than 2 per cent. calcia and of a particle size passing 200 mesh, are mixed, pressed and fired at at least 1,650 DEG C. but without fusion. Specification 711,907 is referred to.ALSO:Fifty to 95 per cent. of inactive periclase and 5 to 50 per cent. of active magnesia, both containing at least 95 per cent. magnesia not more than 2 per cent. silica and not more than 2 per cent. calcia and of a particle size passing 200 mesh, are mixed, pressed and fired at at least 1650 DEG C. but without fusion. Inactive periclase results from firing at above 1600 DEG  C., where as active magnesia is obtained by calcining magnesium carbonate or hydroxide at not above 1200 DEG  C. Specification 711,907 is referred to.
Patent GB-502548-A (GB)
Title: Improvements in or relating to electric hot-plates
IPC: H05B3/68
Filed: 1937-06-11
Abstract: 502,548. Electric hot-plates. SOC. PARISIENNE D'ETUDES SPECIALES. June 11, 1937, No. 16312. Void. Convention date, June 11, 1936. [Class 39 (iii)] A rectangular plate 1 of steel alloy containing 15 per cent of chromium has longitudinal grooves containing elements comprising coils 3 arranged in grooved steatite members 5 enclosed in metal boxes formed by interengaged opposed channel sections. Adjacent members 3 are separated by similar members in inverted positions. The plate may be circular with annular grooves and elements.
Patent GB-653576-A (GB)
Title: Luminescent material
IPC: C09K11/66
Filed: 1948-06-17
Abstract: 653,576. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS, Inc. June 17, 1948, No. 16368. Convention date, June 17, 1947. Drawings to Specification. [Class 39 (i)] A luminescent material comprises a bariummagnesium-lead-silicate phosphor in which the ratio of the number of mols. of barium to the total number of mols. of barium plus magnesium is between 1.0 and 0.2, the lead content is between 0.01 and 1.3 mols. and the silicic acid content is between 0.05 and 1.8 mols. per mol. of barium plus magnesium plus an additional mol. of silicic acid for each mol. of lead used. The Specification gives certain preferred compositions within the above range together with manufacturing details and light output diagrams, Figs. 1 to 10 (not shown), produced from tests on numerous samples with calcium lead tungstate as the comparison standard. The fluorescent colour is blue or blue-green. Phosphors according to the invention may be used as the blue-green component when blended with zinc orthosilicate and zinc beryllium silicate in the preparation of daylight fluorescent lamps.
Patent GB-1490495-A (GB)
Title: Method and apparatus for recovering embryos from embryonated eggs
IPC: A61K39/00
Filed: 1976-04-22
Abstract: 1490495 Separation of egg components MERCK & CO Inc 22 April 1976 [28 April 1975] 16372/76 Heading A4D Embryos are recovered from embryonated eggs by cracking and opening each egg and releasing the egg contents on to a foraminous screen 30, the screen being tilted from the horizontal about two axes that are normal to each other, there being means continually shaking the screen to separate the more fluid portions of the egg contents from the more solid embryo portion. As shown, the eggs are cracked and opened by a mechanism 16 which releases the egg contents through hoppers 54, 44 on to the screen 30 which is inclined and secured in a box 32 so that a lowest corner 30a of the screen is adjacent an outlet 36 from the box. A motor 50 is arranged, through pulleys (51, 49) and a crank (47) to vibrate the box which is slidably mounted on guide rods (48). The egg embryos are collected on the screen 30 and pass out through the outlet 36 and a shoot 38. The more fluid egg portions pass through the screen and are pumped from an outlet 82 in the box 32 to a vessel 84. The egg cracking and opening mechanism 16 is supported and controlled by a mechanism 17 (not described) and comprises, Figs. 3-8 (not shown) separable egg supporting plates (58, 68) which open the cracked egg,(Figs. 6, 7) and separable knife blades (80) actuated by a lazy-tongs linkage to crack each egg against a guide (70). The screen 30 is of  stainless steel wire or is a perforated metal or plastics. The egg embryos are for use in cell and vaccine production.
Patent GB-796246-A (GB)
Title: Improvements in devices for supplying and distributing cut tobacco
IPC: A24C5/39
Filed: 1956-05-28
Abstract: 796,246. Feeding tobacco. KORBER, K. May 28, 1956 [May 31, 1955], No. 16398/56. Class 130. [Also in Group XXX] Five shaker conveyers 3 feeding individual continuous-rod cigarette-making machines (not shown) are supplied with cut tobacco by a reciprocating belt 1 running on rails 6, and each is pivotable into a position 3<1> when its machine is not ready for operation so as to return tobacco to the belt 1, or to the source of supply therefor, via a belt 27 and a further belt (not shown) transverse thereto. Each conveyer 3 feeds its machine via carding and beating rolls 19, 20 and a pneumatic pipe 23. To stop the feed, e.g. on exhaustion of the machine opener or to change a cigarette-paper supply reel, a machine electric circuit incorporating an electromagnet 16 is opened automatically or manually and the electromagnet armature 15 falls to allow the end of the conveyer 3 linked thereto to drop. The conveyers 3 are operable in both positions by a common drive 10, 11. A cover 29 and dust extraction pipe 30 are provided. Deflectors 17, and rolls 18 alternately driven in opposite directions, distribute the tobacco to the conveyers 3.
Patent GB-1083531-A (GB)
Title: Improvements in and relating to ultrasonic delay devices
IPC: H03H9/36
Filed: 1966-04-14
Abstract: 1,083,531. Electromechanical delay lines. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 14, 1966 [April 17, 1965], No. 16419/66. Heading H3U. A delay line comprises a prismatic body L of e.g. pressed glass having an input face 4 provided with a piezoelectric input transducer T 1 , an output face 5 of 90 degrees to the face 4 and provided with a piezoelectric output transducer T 2 , a reflecting face 3 at 45 degrees to the faces 4, 5, and parallel reflecting faces 1, 2 at 90 degrees to the face 3. The length of the faces 1, 2 is twice that of the face 3 so that each vibration transmitted by T 1  is reflected twice on each of the faces 1, 2 before arriving at T 2 . This double reflection cancels out any error which would otherwise be present due to a slight manufacturing misalignment of the faces 1, 2.
Patent GB-565023-A (GB)
Title: Improvements in or relating to machines having a turntable driven by a motor
IPC: B44B3/06
Filed: 1942-11-20
Abstract: 565,023. Dynamo - electric machines. FONTANA, C. Nov. 20, 1942, No. 16441. [Class 35] [Also in Groups XXIV and XXXVIII] The heavy turntable 1 of a sound-recording machine is mounted on a central ball 2 and is driven through a spring and hydraulic coupling by a motor arranged in a casing 9, 18 mounted by means of rubber cushions 8 on the base 7, 4 of the machine. The driving coupling comprises rollers 21 on the turntable embraced by springs 22 on the member 19 driven by the motor. Shaped abutments 23 are provided to graduate the action of the springs, the member 19 is cup-shaped and contains a liquid, and a sleeve 20 attached to the turntable fits closely into the cup 19. A steadying sleeve 5 is interposed between the extended hub 1<SP>1</SP> of the turntable and the central post 3 fixed to the base 4 and supporting the ball 2.
Patent GB-256019-A (GB)
Title: Improvements in apparatus for the extraction of oils, fats, waxes, resins and greases from substances containing the same
IPC: C11B1/10
Filed: 1925-06-25
Abstract: 256,019. MacGregor, J., and Scott & Co., Ltd. June 25, 1925. Waxes and fats and fatty oils, extracting by solvents.-In extraction apparatus in which percolators a are arranged above a residual-solvent recovery vessel b, the passages care fitted with valves m which permit the solvent to drain away while retaining the raw material in the extractor, but which are afterwards operated to allow of the discharge of the material into the vessel b. The valve m shown comprises a tube having a perforated tap o and connected to a valved outlet pipe p. It may be withdrawn bodily into a casing q<1> by a rod q with a handle q<3>. The vessel b has a steam-jacket f, one or more steam inlets b<1>, and a perforated rotating arm l supplied with steam through a passage j in the shaft g. The outlet y for the vaporized solvent is connected to condensers and vacuum producing devices. Before the percolators a are opened for recharging they are freed from solvent by steam admitted through valves r and passed out through valves near the covers. In a modified apparatus adapted for continuous working, the exhausted material is discharged from the percolators a into a hopper, from which it is fed to and conveyed through horizontal tubular driers and discharged into a vacuum vessel with a valved discharge outlet to a second receiver having a valve on its outlet so that the vacuum need not be broken by discharge of the dried material.
Patent GB-639573-A (GB)
Title: Improvements in pallets for supporting goods during storage or transportation
IPC: B65D19/00
Filed: 1947-06-23
Abstract: 639,573. Load-carrying pallets. M. G. K. ENGINEERING CO., Ltd., and KETELBEY, F. G. June 23, 1947, No. 16477. [Class 78 (iv)] In a pallet provided with legs which are adjustable in length, the upper end of each leg is formed to receive the lower end of the leg of a pallet disposed immediately above it, whereby a number of pallets may be superposed with their load-supporting platforms in spaced relation so that the goods on each pallet are not required to bear the weight of the goods and pallets above them. In the embodiment shown, the pallet, built up of channel members 10, 11 secured in spaced relationship by members 12, 13, is provided with four legs each comprising an upper member 14 in which is slidably mounted a member 17 of solid or tubular construction. The latter is adjustably secured by a locking pin 21 on a chain 20 secured to the member 14, which engages in holes 19 in the members 14,17. A disc 16 fixed in the member 14 supports the lower end of the member 17 of the pallet next above.
Patent GB-599153-A (GB)
Title: Improvements in and relating to methods of treating surfaces to make them water repellent
IPC: C08G77/398
Filed: 1945-06-28
Abstract: The surface of a solid article is made water-repellent by applying thereto a silicon compound prepared by substituting amino or borate groups for some or all of the halogen radicals in a halogenopolysiloxane or a mixture of such polysiloxanes containing from 2 to 8 silicon atoms to the molecule, having an average R:Si ratio of between 1.8:1 and 2.5:1 where R represents methyl, ethyl or propyl groups, and having an average halogen to silicon ratio of between 0.16 to 1 and 1 to 1 prior to substitution.  The compounds may be prepared from halogenopolysiloxanes of straight chain formula X (Si R2 O)n Si R2 X where X is a halogen atom, R a methyl, ethyl or propyl group and n a whole number from 1 to 7 or from those having a branched chain structure or having terminal SiR3 groups where R is a methyl, ethyl or propyl group.  The silicon compound may be dissolved in toluene, gasoline or ether and then applied to the surface. Specified articles are glass and other vitreous and ceramic materials, porcelain, quartz, glass fibre, stainless steel, nickel, phosphor bronze and aluminium.  Specifications 572,740 and 575,675, [both in Group VIII], are refereed to.ALSO:The surface of a solid article is made water-repellent by applying thereto a silicon compound prepared by substituting amino or borate groups for some or all of the halogen radicals in a halogenopolysiloxane or a mixture of such polysiloxanes containing from 2 to 8 silicon atoms to the molecule, having an average R to Si ratio of between 1.8 to 1 and 2.5 to 1, where R represents methyl, ethyl or propyl groups, and having an average halogen to silicon ratio of between 0.16 to 1 and 1 to 1 prior to substitution.  The compounds may be prepared from halogenopolysiloxanes of straight chain formula X(SiR2O)nSiR2X, where X is a halogen atom, R a methyl, ethyl or propyl group and n a whole number from 1 to 7, or from those having a branched chain structure or having terminal SiR3 groups, where R is a methyl, ethyl or propyl group. The aminopolysiloxanes may be prepared by treating halogenopolysiloxane with anhydrous ammonia, e.g. the symmetrical methyl 1-dichlorotrisiloxane is dissolved in ethyl ether, anhydrous ammonia bubbled through, the ammonium chloride filtered off and the ether removed.  The borates can be prepared by treating the halides with boric acid e.g. using boric acid in glacial acetic acid and adding drops of the polysiloxane. Specifications 572,740 and 575,675, [both in Group VIII], are referred to.
Patent GB-451063-A (GB)
Title: Improvements in or relating to golf club grips
IPC: A63B53/14
Filed: 1935-06-07
Abstract: 451,063. Golf clubs. SPALDING & BROS. (BRITISH), Ltd., A. G., Putney Wharf, Deodar Road, Putney, London.- (East J. V. ; Long meadow, Massachusetts, U.S.A.) June 7, 1935, No. 16587. [Class 132 (ii)] A golf-club grip at the handle portion has a flattened piece extending longitudinally disposed 90‹ angularly from the club head, the upper limit of the flat side being spaced from the end of the grip. The grip is formed by a ridge 13 along the rearward side of the grip, the flattened surface 15 on the lateral side and recesses 18, 19 to accommodate the heel of the hand and the little finger respectively. The grip is made up of an internal moldable material say finely divided rubber and cork, and an external wrapping 12.
Patent GB-413116-A (GB)
Title: A fastening device
IPC: B60J7/185
Filed: 1933-06-10
Abstract: 413,116. Holders for sliding-panels. STANDARD MOTOR CO., Ltd., and GREEN, E. A., Standard Motor Works, Coventry. June 10, 1933, No. 16645. [Class 44.] A sliding-panel of a motor-car roof is held in its closed or one of a number of open positions by a spring-pressed roller-ended sliding latch 16 which engages with a notched rail 13 along one edge of the roof opening. Preferably, latches are provided on opposite edges of the panel and are operated by a central crank 21 having upstanding lugs 20 to cooperate with lugs 19 on the latches. The end notch with which the latch engages when the panel is closed is preferably deeper than the others and is inclined at its rear end so that the panel tends to move towards the closed position. The rollers are grooved to co-operate with the rails for guiding the panel. Springs 24 are provided for the latches and a separate spring 25 for the crank 21 co-operates with a lug 26 thereon.
Patent GB-183807-A (GB)
Title: Improvements in or relating to drawing dies
IPC: B21C3/02
Filed: 1922-06-15
Abstract: 183,807. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. July 29,1921, [Convention date]. Alloys.-Dies for drawing tungsten wire &c. are made from an alloy of tungsten and cobalt. The alloy may consist of 75 to 95 parts of tungsten to 25 to 5 parts of cobalt. In order to make the alloy, tungstic acid and cobalt oxide are first freed from moisture by heating at 400‹ C. and are then mixed with fine-grained aluminium and fused in the ordinary way.
Patent GB-1571465-A (GB)
Title: Conveyor for feeding portions of sheet material particularly preshaped or punched pieces of cardboard and the like to a user machine particularly to a machine for packaging cigarettes into hinged lid packets
IPC: C03C4/06
Filed: 1977-04-22
Abstract: The continuous-belt conveyor device ensures the gradual feeding of sections of sheet material. In order to ensure a relatively high feed speed, the said belt comprises at least two endless webs (14) each wound onto two toothed wheels, one of which is a drive wheel. The belt extends on opposite sides of a beam (33), a flat upper surface of which projects above said belts. The latter are connected to one another by cross-ties (34) which extend above the beam and define a plurality of conveying drawers each designed to receive a section of sheet material (5). The installation is designed to supply intermittent cigarette wrapping/packgaging machines at extremely high operating frequencies and with precise positioning of the cardboard blanks. <IMAGE>
Patent GB-1171731-A (GB)
Title: Rotor for a rotary fluid flow machine.
Inventor: GILBERT RONALD ALBERT
IPC: F01D5/30
Filed: 1968-04-08
Abstract: 1,171,731. Rotors. ROLLS-ROYCE Ltd. April 8, 1968, No. 16817/68. Heading F1T The blades 13 of a multi-stage turbine, compressor or the like are retained radially in position in axial slots 14 in the periphery of each rotor disc 12 by means of T-section rings 19 having arms 20 overlying projections 27 on each blade root 15. The circumferential width of each slot 14 may increase in the radial outward direction, as shown, or in the radial inward direction. Annular flanges 22 on the downstream side of each disc 12 act, in conjunction with the overlying rings 19, as spacers of the discs. Splines 29 provide a driving connection between discs 12 and the rotor shaft 30. Sealing ribs (21, Fig. 1 not shown), may be provided on the rings 19 to cooperate with shrouds (17) on stator blades (16). In a modification, the projections 27 are provided on the rings 19 for co-operation with slots in the end faces of the blade roots 15. The working fluid may be carbon dioxide at a pressure such that the gas loading on the blades 13 exceeds the centrifugal loading.
Patent GB-113603-A (GB)
Title: Improvements in Lantern Fronts for Automobile Lamps.
IPC: F21V5/00
Filed: 1917-11-15
Abstract: 113,603. Macbeth - Evans Glass Co. Feb. 23, 1917, [Convention date] Lenses; lantern fronts. - The lenses or lantern fronts of vehicular lamps are constructed with an upper vizor-shaped light-obstructing part and with a lower part of relatively clear glass so that the light rays are deflected downwardly somewhat below the horizontal. In one form, the upper vizorshaped part 1 has preferably an inner reflecting-coating 3 of white enamel and an outer coating 4 of green enamel. The lower part of the'lantern front is provided on its back face with alternating vertical ridges and concave recesses for diffusing the light laterally and on its front face with horizontal prisms, one face of each prism being inclined at a slight angle to the horizontal. In some cases, both refracting-means are arranged on the same side of the lens. The Specification as open to inspection under Sect. 91 (3) (a) comprises modifications in which the vizor-shaped part is dispensed with, and the front face may be left plane. The refracting- means then extend over the whole face or faces of the lantern front, and the back face may have a series of concave vertical ridges separated by depressions. The positions of the refractorymeans on the back and front of the lantern front may be reversed. When employing an upper vizor-shaped part, its lower edge may be curved downwardly with its end parts terminating adjacent the horizontal centre line of the lantern front. This subject-matter does not appear in the Specification as accepted.