baber/WOPTO huggingface dataset:
Patent GB-1140801-A (GB)
Title: Electromagnetic wave apparatus
Inventor: TABOR WILLIAM JOSEPH
IPC: G02B5/30
Filed: 1966-02-23
Abstract: 1,140,801. Polarizing apparatus. WESTERN ELECTRIC CO. Inc. Feb.23, 1966 [March 8, 1965], No. 7833/66. Heading G2J. Multiple output beams are obtained from a single input beam L, Fig.1, by arranging three or more birefringent bodies P 1 , P 2 , P 3  &c. on a common optical axis, the bodies P 1 , P 2 , P 3  &c. being so orientated and disposed that light beams passing through and emerging from each of the bodies, as a result of an axial beam incident on the first body P 1 , are incident on the body next adjacent so that 2<SP>n </SP>output beams are produced from a single input beam where n is the number of bodies, the arrangement being such that at least all the beams incident on bodies other than the first are polarized. As shown Wollaston prisms P 1  - P 4  are used each prism being at 45 degrees to the preceding one and the thicknesses increasing successively from P 1  to P 4  so that the output beams are equally spaced. In a modification, each prism is at 90 degrees to the preceding one and quarter-wave or half-wave plates orientated at 45 degrees or 22¢ degrees respectively to the optic axis of the next adjacent lower order prism are arranged between successive prisms. Alternatively, the rotators may be Faraday rotators or optically active materials such as quartz or sugar solutions.
Patent GB-1458872-A (GB)
Title: Corner protector
IPC: B65D6/36
Filed: 1974-02-21
Abstract: 1458872 Corner protectors ARCHER PLASTICS Ltd 25 April 1975 [21 Feb 1974] 7892/74 Heading B8C A corner protector 10 comprises floor and ceiling members 11, 12 to slide over parallel faces 21 of an object 20, and walls 13, 14 extending between the members 11, 12 to contact respective ones of the edges faces 24, 25 of the object and having resilient means 18 to allow the members 11, 12 to move apart elastically for different size objects. The protector may be a single moulding of polyethylene and have fillets 19 between the flange parts 16, 17 of the walls 13, 14. The fillets are broken in use.
Patent GB-540981-A (GB)
Title: Improvements in or relating to devices for filtering, purifying or otherwise treating liquids
IPC: B01D29/00
Filed: 1940-05-02
Abstract: 540,981. Filtering liquids. ZWICKY, J. F., and AIR PORT EQUIPMENT, Ltd. May 2, 1940, No. 7913. [Class 46] [Also in Group XVIII] A chamber 4 containing a cylindrical filter 6, or other oil or liquid cleaning or treating device, is connected by a port and quick-action coupling device 2 with an engine sump or other liquid container. The oil is drawn through the filter and through a suction-valve 9 by a reversible pump connected to the port 19. When the pump is reversed, the liquid is forced back through the port 19 into a delivery chamber 20 at one side of the passage 17, past a delivery valve 22 to a passage 21. leading back to the port 1, and thence to the sump. A knob 29 on the stem 27 of the valve 22 gives a visual indication that oil is passing through the valve. When air is passing, the valve only chatters. It is thus possible to estimate the amount of oil pumped back. The floor 5 of the filter-chamber 4 is sloped, as shown, to provide a trap for foreign matter collected in the chamber.
Patent GB-944458-A (GB)
Title: Improvements in trays for bread, confectionery and the like
IPC: A21B3/00
Filed: 1962-03-01
Abstract: 944,458. Bakers' trays. THOS. PEARSON & CO. Ltd., and C. B. McFARLANE. March 1, 1962 [May 1, 1961], No. 7985/62. Heading A4D. A bakers' tray comprises a wire mesh bottom 5 and a side wall consisting of a wire 1 having U or V downward projections 3 whose sides are welded tangentially at 4 to either the inside or outside surface of the frame wire 2 of the bottom 5. If desired the sides of some of the projections 3 of the upper frame may be welded outside and the others inside, the frame 2.
Patent GB-787194-A (GB)
Title: Bracket attachment for holding feeders for use in feeding young animals
IPC: A01K9/00
Filed: 1955-03-19
Abstract: 787,194. Releasable fastenings. MILLER, G. P. ROSE-. March 19, 1956 [March 19, 19551, No. 8084/55. Class 44 [Also in Group XIV] An attachment for holding a feeder 8 for use in feeding animals, comprises a bracket 1 attachable to a fixed structure and presenting a normally vertical bar 4 of polygonal crosssection and a socket 7 presented by the feeder and engageable with the bar, which latter is furnished with a locking means 5 engageable with the socket. As shown, the socket is provided with a lining 9 of wear resistant material. The locking means is constituted by a pivoted catch. According to the Provisional Specification the locking means comprises a U-shaped pin which is engageable in mating holes in the socket and bar 4. Specification 647,388 [Group I] is referred to.
Patent GB-804833-A (GB)
Title: Process for the production of metallic coatings
IPC: C25D3/02
Filed: 1955-03-21
Abstract: Thioalkane sulphonic acids or their salts R.S.R1-SO3X where R is hydrogen or a cyclic or acyclic hydrocarbon residue which is linked with the sulphur atom either directly or via -C(NH)-, -CO-, -CS-, or -SO2-and may be interrupted or substituted by a group containing oxygen, sulphur, or nitrogen, R1 is a saturated divalent acyclic hydrocarbon group, and X is hydrogen or a substituent obtained by reacting the acid with an organic or inorganic base, other than sulphonic acids or salts as in Specification 762,257 which contain a carbon atom linked exclusively to three other atoms of the elements oxygen, sulphur, and nitrogen, are produced by reacting either (a) sultones such as 1 : 3-propane-sultone and 1 : 4-butanesultone, or haloalkane-sulphonic acids or their salts with metal sulphides, metal hydrosulphides, mercapto compounds, or metal compounds of carbithio acids, thiolic acids, or thioamides, or (b) mercapto-alkanesulphonic acids with halogen compounds.  Numerous examples of thioalkanesulphonic acids and salts are given. Typical examples are mercapto-ethane sodium sulphonate, methylcyclohexyl-, phenyl-, benzyl-, or furfurylthiopropane o -sodium sulphonate; di-n-propylthioether o  : o 1-bis-(sodium sulphonate); ethylene - 1 : 2 - bis - thiopropane - o  - sodium sulphonate; 4-bromophenyl- or 4-bromo-benzoyl - thioethane - o  - sodium sulphonate; and the o -sodium sulphonates of the S-propyl esters of thioacetic acid, thiobenzoic acid, methyl- or phenyl-carbithio acids, and phenylsulphothiolic acid; thioacetamide or thioacetanilide - S - propane - o  - sodium sulphonate; thiobenzamide - S - butane - o  - sodium sulphonate; and diethyl ether-2 : 21-bis-thio propyl-o -sodium sulphonate.ALSO:To produce bright metal coatings there is added to a metal plating bath a thioalkane sulphonic acid or salt thereof R-S-R1-SO3X, where R is hydrogen or an acyclic or cyclic hydrocarbon residue which is linked with the sulphur atom either directly or via -C(NH)-, -CO-, -CS-, or -SO2-, and may be interrupted or substituted by a group containing oxygen, sulphur or nitrogen.  X is hydrogen or a substituent obtained by reacting the acid with an organic or an inorganic base, and the sulphonic acid or salt is not one which contains, as in Specification 762,257 [Group XXXVI] a carbon atom linked exclusively to three other atoms of the elements oxygen, sulphur and nitrogen.  Numerous suitable compounds are specified. Typically, a firmly adhering glossy copper coating is formed on a cleaned iron or steel sheet by immersion in a bath containing 20 to 30 g/l copper sulphate and 40 to 80 g/l sulphuric acid to which has been added 10 to 20 g/l phenyl thiopropylether-o -sodium sulphonate.
Patent GB-1458064-A (GB)
Title: Stabilized polyolefin moulding materials
IPC: C08K5/21
Filed: 1974-02-22
Abstract: 1458064 Stabilizing polyolefins BASF AG 22 Feb 1974 [24 Feb 1973] 8116/74 Addition to 1458063 Heading C3P Polyolefin moulding materials are stabilized with 0À05 to 3 weight per cent of a stabilizer of formula in which R<SP>1</SP> is H or C 1-4  alkyl, R<SP>2</SP> is -OCO.R<SP>3</SP>, -NHCO.R<SP>3</SP> where R<SP>3</SP> is H or a C 1-18  hydrocarbon radical, R<SP>4</SP> and R<SP>5</SP> are C 1-18  hydrocarbon radicals and n is 0 or 1. The polymer may be derived from a C 2-6  α-olefin, particularly ethylene or propylene. The compositions may also contain conventional stabilizers and other additives. Examples describe the stabilizing of polypropylene with the (1) palmitic, (2) ethylhexanoic, (3) lauric and (4) stearic acid amides of 4 - (m,m - di - t.butyl - p - hydroxyphenyl) - 2- amino butane.
Patent GB-1034252-A (GB)
Title: Cine projector winding device
Inventor: BODROV ALEXADR DMITRIEVICH
IPC: G03B21/32
Filed: 1964-02-27
Abstract: 1,034,252. Cine film-winding apparatus. NAUCHNO-ISSLEDOVATELSKY KINOFOTOINSTITUTE. Feb. 27, 1964, No. 8132/64. Heading G2E. A film-winding device for a cine projector comprises a horizontal disc 2 which carries a supply film roll 1, and which is freely rotatable about a central stationary part 3 whose periphery supports rollers 4 to guide the film as it is unwound from the inside of roll 1, and means to impart rotation to the disc 2 as the film unwinds and is transported through the projector. This means comprises tapered rollers 8 pivoting is vertical radial planes about the pivot pins of rollers 4 and so pressing the innermost film turn against disc 2 to provide a frictional driving torque. The film is wound on to the split-ring core 28 at take-up disc 7. Re-winding is avoided as the film on its core 28 is next removed from disc 7 and placed on disc 2 for further projection; the core is then removed and rollers 8 are lowered on to the film. To prevent compression of the inner film turns when the projector is started, driving torque may be applied directly to the inner edge of disc 2 when the initial rise in film tension is used to turn spring-locked lever 10 about pivot 11 to bring roller 14 into driving contact with disc 2, roller 13 being vertically higher than roller 14. This initial drive may alternatively be supplied by a solenoid acting momentarily on a free-wheel ratchet through a spring- loaded armature. An electromagnetically operated friction brake operates when the motor is cut.
Patent GB-732596-A (GB)
Title: Improvements in or relating to pulse amplifier
Inventor: HAGEN GLENN EDWARD
IPC: H03K17/52
Filed: 1953-03-25
Abstract: 732,596. Multi-gap cold-cathode tubes. NORTHROP AIRCRAFT, Inc. March 25, 1953, No. 8222/53. Class 39 (1). [Also in Group XL (c)] In a circuit employing a cold-cathode gas tube, the potentials of the input electrode 6 and anode 5 are arranged just below the striking voltage so that an input pulse causes the input electrode-cathode gap 6, 4 to fire and thus the anode-cathode gap, a voltage drop causing the two gaps to extinguish at the end of the pulse. A main gap 2, 3 fires to maintain a running potential, the added potential of the battery 10 being insufficient to cause the auxiliary gap 4, 5 to strike, the input electrode 6 being primed to a potential near the striking voltage of the intermediate electrode-cathode gap by a battery 17. A positive-going input pulse applied over capacitor 15 causes the intermediate electrodecathode gap to fire, thus striking the anodecathode gap to produce a negative-going output pulse at the anode. The drop in potential due to the current flowing in resistors 12, 16 extinguishes the gaps 4, 5 and 4, 6. Specification 659,808, [Group XL (c)], is referred to.
Patent GB-380376-A (GB)
Title: Improvements in or relating to automatic compressed air brakes for railway vehicles
IPC: B60T15/48
Filed: 1932-03-19
Abstract: 380,376. Fluid-pressure brakes. SOC. ITALIANA E. BREDA PER COSTRUZIONI MECCANICHE, 9, Via Bordoni, Milan, Italy. March 19, 1932, No. 8247. Convention date, April 30, 1931. Addition to 379,416. [Class 103 (i).] The throttled passage 16 between the trainpipe passage 22 and the chamber B of the triple valve device described in the parent Specification is replaced by a valve device 55 adapted to vary the rate of flow of air to the chamber and thus to the auxiliary reservoir, during charging according to the pressure difference on the two sides of the valve. As shown, the device comprises a piston 52 slidable in a cylinder 55 against the action of a spring 53. If the rate of supply to the train-pipe passage 22 is low, feed is ejected to the chamber B, thence by passage 29 to the auxiliary reservoir both through a passage 50 in the piston 52 and also through a lateral port 51 in the cylinder 55 and passage 58, but if the supply to the passage 22 is rapid, the piston 52 is depressed and closes the port 51. Overcharging of the auxiliary reservoirs at the head of a train is thus prevented.
Patent GB-177393-A (GB)
Title: A device for enabling a person to test the odour of his own breath
IPC: A61B5/097
Filed: 1921-03-16
Abstract: 177,393. Diener, K. March 16, 1921. Breath-testing appliances.-In an appliance for testing the odour of the breath, a chamber 1 encloses the nose, the edges making a tight joint with the face, a cotton wool pad on a carrier 5 being provided for the bridge of the nose. From the base of the chamber immediately below the nose runs a connecting-channel 2, terminating in a mouthpiece 3. This channel may be open or closed, and in modifications valves may be employed as shown in Figs. 4 and 6. The article is preferably made of a ceramic material, but an alternative construction of metal, opening for cleaning purposes is shown in Fig. 6.
Patent GB-687075-A (GB)
Title: Improvements in detergent briquettes and in method of and apparatus for making same
IPC: C11D17/00
Filed: 1950-04-03
Abstract: A detergent briquette has a longitudinal channel extending therethrough whereby dissolving liquid may flow in contact with the inner surface of the channel and with the outer surface of the briquette in either order, the diameter of the channel being between one-tenth and one-quarter of the diameter of the briquette.  A cylindrical briquette with a central longitudinal channel of the dimensions aforesaid may be <PICT:0687075/III/1> <PICT:0687075/III/2> used in washing machines, where it is placed in a dispenser and water caused to flow through the channel and over the outer surface thereof to produce the washing solution.  The rate of dissolution of such a briquette can be shown to be roughly constant and hence a uniform concentration of the detergent in the solution is maintained.  A suitable cylindrical briquette has a height of 8 inches by 4 inches diameter with a 3/4 inch channel.  The briquette is placed in a dispenser of such design that the water passes through the central channel and then returns over the outer surface of the block or vice-versa.  In the form shown, the cylindrical briquette 10 is supported by an apertured plate 13 within a dispenser 12.  An inlet pipe 14 is fitted communicating with the channel 16 in the briquette, and an outlet pipe 15 is fitted communicating with a compartment 17 below the plate 13.  The briquettes are preferably moulded in a mould with a core both made from a resilient material, e.g. rubber, a resilient plastic or a similar rubber-like material, to accommodate the expansion of the liquid or semi-liquid detergent mass used during its solidification.  In a suitable apparatus, the flexible cylindrical mould 20, Fig. 5, divided longitudinally at 21, is mounted in a case 22 formed of two parts hinged together.  The mould rests on a rubber &c. disc 23 provided with a central hole in which the flexible core 25 is mounted, the other end of which is held in a clamp 26 mounted on the case.  After the briquette has solidified, the mould is peeled off and the core removed by stretching it.
Patent GB-1453688-A (GB)
Title: Support frames for roadways in underground working tunnels or the like
IPC: E21D11/20
Filed: 1974-02-25
Abstract: 1453688 Mine support sections BERGBAUSTAHL GmbH & CO 25 Feb 1974 [3 March 1973] 8365/74 Heading E1E In a mine arch support iron of channel section having a base portion and a flange 12 separated by a web portion, the latter portion is subdivided into transition three zones 1, 2, 3 each having inner and outer boundary lines defined by parabolas, the parabolas of one zone being different from and merging into the parabolas of the adjacent zone or zones. For full mathematical desiderata, nesting characteristics and advantages over the prior the Specification should be referred to.
Patent GB-671098-A (GB)
Title: Improvements in closures for pressure vessels
IPC: F16J13/02
Filed: 1950-04-04
Abstract: 671,098. Covers for resisting fluid pressure. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. April 4, 1950 [April 9, 1949], No. 8399/50. Class 123(i) A cover 2 is secured within the mouth of a high pressure synthesis column &c. 4 by a plurality of ring sectors 1 which are normally housed in an annular channel in the cover and are adapted to be displaced radially outwards, e.g. by keys 5 insertable through openings 10 in the mouth, to engage also a channel within said mouth. The openings 10 are closed by blank flanges 11. The cover is first inserted into the mouth to a position determined by a shoulder 3 on the former, right-hand half of Fig. 1. whereupon the sectors are displaced; the cover is then raised, until seating surfaces formed respectively on the outer upper margin and inner lower margin of each sector engage corresponding seats on the vessel and cover, left-hand half, by the adjustment of nuts 6 which engage studs 7 anchored in the cover and bear upon a gland ring 8, the latter having an associated gasket 9 housed in co-operating recesses in the outer edge of the cover and inner edge of the mouth of the column. The transverse plain seating surfaces of the sectors, vessel mouth and cover may be replaced by chamfered surfaces.
Patent GB-724319-A (GB)
Title: Improvements in and relating to nozzle structures for elastic fluid turbines
IPC: F01D9/04
Filed: 1953-03-26
Abstract: 724,319. Elastic-fluid turbines. GENERAL ELECTRIC CO. March 26, 1953 [April 3, 1952], No. 8406/53. Class 110 (3). An elastic-fluid turbine comprises a casing 1 divided into two sections along a longitudinal plane through the axis, the inlet portion of the casing having radially-spaced concentric grooves 2, 3 to receive outer and inner peripheral flange portions of a nozzle plate member 4 also formed in two halves, the arcuate nozzle members being rotated into position in the grooves. The invention resides in means for sealing the clearance spaces between the nozzle members and casing parts. The arcuate nozzle member 4 comprises four groups of nozzles 4a, 4b, 4c, 4d and the groups are separated at the points 9, 10, .11. Axially-extending keys 12 are secured by peening in the outer peripheral wall of the nozzle member, thereby sealing the peripheral clearance space 8. Radially-disposed keys 14 are mounted in slots formed in the upstream face of the nozzle member, thereby sealing the axial clearance 7 between the nozzle member and casing. The keys 14 are retained in position and the peripheral clearance 8a between the inner periphery of the nozzle member and casing is sealed by means of axially-disposed dowel pins 17 inserted in holes 18 drilled through the casing and partly through the nozzle member 4 and keys 14. The dowel pins are retained in position by means of radially-disposed pins 19. Holes 16 are provided to give access to the keys 14, and the pins and keys 14, 17, 19 are drilled to facilitate removal. The working fluid inlet chamber is indicated at 1a. The first-described sealing keys 12 are not essential features of the invention.
Patent GB-312732-A (GB)
Title: Process of making alkali hydroxides
IPC: C01D1/20
Filed: 1928-03-20
Abstract: 312,732. Curtin, L. P. March 20, 1928. Alkali hydroxides.-In a process for the manufacture of alkali hydroxides, litharge or other form of lead monoxide is suspended in water or an aqueous solution of caustic alkali and strongly agitated, while a solution of sodium sulphide is added at such a rate that the particles of oxide do not become externally coated with sulphide. This reaction is made the basis of a cyclic process for the manufacture of caustic soda, the raw materials being sodium chloride and coke, or other form of carbon. Thus :- (1) 4NaCl + 2H2SO4 = 2Na2SO4 + 4HCl. (2) Na2SO4 + 2PbS = Na2S + 2SO2 + 2Pb. (2a) Na2SO4 + 2C = Na,S + 2CO2. (3) 2Pb + 0, = 2PbO. (4) 2SO2 + O2 + 2H2O = 2H2SO4. (5) 2PbO + 2Na2S + 2H2O = 2PbS + 4NaOH. The final products are caustic soda and hydrochloric acid. The stages enumerated may be altered in any way desired, e.g. in the production of potassium hydroxide, stage (1) is unnecessary, as potassium sulphate is available as raw material, yielding sulphuric acid as a by-product.
Patent GB-703354-A (GB)
Title: Device moved by evaporation and condensation of fluid
IPC: A63H23/10
Filed: 1950-04-04
Abstract: 703,354 Temperature-responsive actuating-elements. WILKINS, E. G. April 3, 1951 [April 4, 1950], No. 8489/50. Class 64(2) [Also in Group XXIX] A device moved by evaporation and condensation of low boiling-point fluid comprises interconnected chambers containing the fluid which are carried by a float or floatable vessel, the chambers being so arranged on the float that one of the chambers may be exposed alternately to a temperature above and below the boiling point of the fluid and the device so moved. The fluid may be monofluorotrichloro-methane. In one embodiment, Fig. 2, the device is in the form of a toy duck which is floated in a hot bath; the vapour pressure of the low boiling-point liquid in the tank 15 forces some liquid up the tube 16 into the tank 14. When sufficient liquid has collected in the upper tank the duck overbalances, the liquid in the tank 14 thus evaporating and forcing the liquid back into the tank 15 so that the duck's head rises again. In another embodiment, Fig. 3, the device comprises a hollow metal sphere 17, having one or more small openings in its lower part, and an upper chamber 20, containing low boiling-point liquid, connected by a pipe 21 to a rubber bag 19. When the device is placed in a hot bath the water passes into the sphere through its small bottom openings and the device sinks. The low boiling-point liquid in the chamber 20 then evaporates and the vapour passes down the pipe 21 and expands the bag 19 which expels the water from the sphere through a large opening 18. The device then rises until the chamber 20 is out of the water when the vapour in the bag passes up the pipe 21, condenses in the chamber 20 and the device again sinks. An inverted cap 22 having a one-way valve 23 allows rapid descent and slow ascent.
Patent GB-254376-A (GB)
Title: Improvements in electric coil holders, variable inductances, variable condensers andthe like
IPC: H01F27/00
Filed: 1925-03-30
Abstract: 254,376. Kent, Ltd., G., Honnor, H. T., and Pistor, D. R. A. March 30, 1925. No Patent granted (Sealing fee not paid). Wireless tuning-apparatus, adjustment devices for. - Coarse and fine adjustment mechanisms for electric coil holders, condensers &c. wherein the movable members are adjusted in planes parallel to the fixed members are effected by a single operating- handle which is rotated circumfenrentially about a point for the coarse adjustment and twisted about its own axis for the fine adjustment. In one construction, Fig. 1, the movable member 4 is carried on a spindle 5 journaled in the fixed member 1, the operating- handle 7 being provided with a loose grip 9 for effecting the coarse adjustment and with a fixed grip 10 for effecting the fine adustment by means of the friction wheel 8 which may engage a separate friction plate. The grips 9, 10 may be dispensed with and the handle slightly rocked to disengage the friction wheel. In another construction, Fig. 2, the operating-handle 7 is screw-threaded to engage the spindle 5 and the movable member 4 is provided with a slot 11 to permit the fine adjustment. Specification 255,146 is referred to.