baber/WOPTO huggingface dataset:
Patent GB-444117-A (GB)
Title: Improvements in the separation of propyl ether from mixtures of the same with propyl alcohol
Filed: 1934-10-01
Abstract: Propyl ether is separated by distillation from its mixtures with propyl alcohol by maintaining such a water content in the mixture to be distilled that the propyl ether is driven over with the water as a constant boiling minimum mixture, the ether separating from the water in the receiver.  The reaction water formed during the formation of the ether by dehydration of the alcohol may be sufficient for the process.  In an example, a mixture of 20 per cent propyl ether, 4 per cent water and 76 per cent unchanged propyl alcohol was obtained by passing the vapour of the alcohol at 270 DEG  C. over powdered aluminium oxide, and was distilled in a column.  The first distillate at 73--74 DEG  C. comprises a mixture of propyl ether and water which separated in the receiver, the lower layer consisting of pure water, being continuously returned to the still.  The latter was stopped when the yield of ether dropped, an azeotropic mixture of propyl alcohol and water then passing over at 87 DEG  C.  Pure alcohol remained in the still.ALSO:Propyl ether is separated by distillation from its mixtures with propyl alcohol by maintaining such a water content in the mixture to be distilled that the propyl ether is driven over with the water as a constant boiling minimum mixture, the ether separating from the water in the receiver.  The reaction water formed during the formation of the ether by dehydration of the alcohol may be sufficient for the process.  In an example, a mixture of 20 per cent propyl ether, 4 per cent water and 76 per cent unchanged propyl alcohol was obtained by passing the vapour of the alcohol at 270 DEG  C., over powdered aluminium oxide, and was distilled in a column.  The first distillate at 73--74 DEG  C., comprised a mixture of propyl ether and water which separated in the receiver, the lower layer, consisting of pure water, being continuously returned to the still.  The latter was stopped when the yield of ether dropped, an azeotropic mixture of propyl alcohol and water then passing over at 87 DEG  C.  Pure alcohol remained in the still.
Patent GB-936002-A (GB)
Title: Combined hay rack, manger and fencing unit
Inventor: POTTER DAVID JOHN
IPC: A01K1/10
Filed: 1959-08-17
Abstract: 936,002. Animal feeding appliances. LODDON ENGINEERING CO. Ltd. Nov. 10, 1960 [Aug. 17, 1959], No. 28088/59. Class 5(2). A combined hay rack, manger and fencing unit comprises a rack H and manger M supported between uprights adapted for securing to the ground, so as to be capable of use as part of the fencing enclosing for example, a stockyard, the rack and trough being disposed so as to be readily accessible for filling from the outside of the enclosure. As shown in Fig. 1, the rack and trough are supported by pairs of uprights 1, so as to be accessible for filling from the far side of the unit as illustrated in the figure, the space between the rack and trough being sub-divided by bars 15 which may be positioned diagonally as shown in dotted lines to deter the animals from withdrawing their heads from the trough whilst feeding. The rack and trough are each adjustable independently relative to the uprights 1. As shown in Fig. 6, the rack and trough are supported by a single line of uprights 20 so as to be accessible for filling from the near side of the unit as illustrated in the Figure, and are adjustable as a single unit relative to the uprights.
Patent GB-444906-A (GB)
Title: Improvements in brakes for cycles
IPC: B62L3/02
Filed: 1934-10-02
Abstract: 444,906. Cycle brakes. RAMAGE, R., 7, Whytehouse Mansions, Kirkcaldy, Fifeshire. Oct. 2, 1934, No. 28146. [Class 136 (i)] A foot-operated cycle brake comprises in combination a usual rear-wheel brake 7 with spring release, a single bell-crank lever 4 having a pedal 5 on one end, a clamp 2 adapted to be removably secured to the down tube 1, a pivot 3 for the lever on the clamp, and a cable, rod, &c. connection 6 between the other end of the lever and the brake, the pedal-carrying arm of the lever projecting close to the path of one of the propelling-pedals and being adapted to be pressed downwards to apply the brake. The spring release of the brake comprises a lever 10 pivoted at its upper end to a clip 8 and acted upon by a spring 11. The pedal-lever 4 may be connected by a clip &c. to the usual rod or cable of a hand-applied brake.
Patent GB-717938-A (GB)
Title: Improvements in or relating to the manufacture of red iron oxides
Inventor: MARSH BENJAMIN HARRISON
IPC: C01G49/06
Filed: 1951-11-30
Abstract: In the manufacture of red iron oxide pigment, an initial precipitate is formed in an aqueous medium by mixing a base with a soluble iron salt in stages so that the medium is alternately acid and alkaline while undergoing oxidation with an oxidizing agent supplied in sufficient quantity to oxidize the ferrous content of the precipitate at each stage to the ferric state and thereafter metallic iron is added and heat supplied to maintain an elevated temperature in the presence of oxygen containing gases with the subsequent formation of red iron oxide.  In a preferred embodiment of the invention, sodium hydroxide is added to ferrous sulphate solution and oxygen-containing gases are passed through for 15-20 minutes at a temperature of about 16 DEG C. so that the precipitate is oxidized to the ferric state and the solution becomes acid. Additional sodium hydroxide is added to raise the pH to 8 followed by the addition of more ferrous sulphate to bring the pH to 6. During both these processes, oxidation of the ferrous content of the precipitate is effected.  Metallic iron is then added and the temperature of the solution raised to about 80 DEG C.; oxygen-containing gas is then passed into the solution until the desired shade of ferric oxide precipitate is obtained.  Other oxidizing agents, i.e. chlorate, perchlorate, chromate, permanganate or chlorine may be used.
Patent GB-192141-A (GB)
Title: Improvements in and relating to radio transmitting systems
IPC: H01Q21/12
Filed: 1921-10-24
Abstract: 192,141. British Thomson - Houston Co., Ltd., (General Electric Co.). Oct. 24, 1921. Magnetic modulating systems and apparatus; directive signalling.-In wireless transmission systems of the kind in which oscillations are continuously supplied to a divided aerial system, and signalling is effected by varying the relative phase of the oscillations supplied to the aerials or aerial sections, such phase variations are produced by magnetic controlling devices. The aerials are set apart so that the phase variation pioduces a displacement of the direction of maximum propagation and consequently a variation of the strength of radiation in any given direction. As shown in the Figure, two horizontal aerials 1, 2, grounded at each end at intermediate points through variable inductances 4, are supplied by an alternator 5. The phase in each aerial is controlled by circuits coupled to the supply leads of the aerials at 11, 12 and including magnetic controlling-devices 9, 10 of the kind described in Specification 103,842. The degree of saturation of the cores of the devices 9, 10 is ccntrolled by windings 13, 14 which are connected alternately across the battery 15 by front and back contacts 18, 17 on the sending-key 16. When the aerial centres are half a wave length apart, operation of the key 16 is arranged to put the oscillations alternately in phase and in opposition. For telephony, the current in a microphone circuit is superposed on the battery current so as to assist in one winding when opposing in the other.
Patent GB-285133-A (GB)
Title: Improvements in or relating to apparatus for development or other chemical treatment of photographic prints
IPC: G03D5/04
Filed: 1926-11-10
Abstract: 285,133. Halden & Co., Ltd., J., and Halden, J. B. Nov. 10, 1926. Continuous apparatus for developing and like treatment; liquid spraying apparatus.-In apparatus for developing, washing, or otherwise treating prints with jets of liquid or vapour, the points are treated whilst on an endless band 13 which passes over rollers 9, 11, 12 along a circuitous path from one side of the machine to the other. In passing round bends, auxiliary endless bands 14, 15 are used. The jets 22 are positioned at intervals, being supplied through feed pipes 20, 21 from a pumping apparatus 18, and are of sufficient force to keep the print on the band on those runs of the endless band on which the print is underneath the band. A squeegee roller 41 may be used to remove any surplus moisture prior to the film leaving the machine. Where two or more treating mediums are used, separate pumps and pipe lines are provided.
Patent GB-1184614-A (GB)
Title: Method of Sharpening Twist Drills, and Machine Therefor.
IPC: B24B3/30
Filed: 1967-06-19
Abstract: 1,184,614. Grinding twist drills; twist drills. REGIE NATIONALE DES USINES RENAULT. 19 June, 1967 [19 July, 1966], No. 28280/67. Headings B3C and B3D. A method of sharpening a twist drill having on each of its symmetrical surface portions a conical surface 8 which is tangent to a partspherical or part-toroidal surface 9, comprises sharpening the conical portion 8 against the plane of a grinding wheel 4 by rotating the drill about an axis # other than its longitudinal axis XY, and sharpening the portion 9 by adding to the preceding movement of rotation, a first relative rotation between the grinding wheel and the drill about an axis MP containing a centre of the part-spherical or toroidal surface as well as, in the case of a part-spherical surface, a second simultaneous rotation of the drill about its longitudinal axis. In apparatus for carrying out the method, an arm 11 is mounted for rotation by a handwheel 20 about an axis # in a frame 12 and at its end carries a bracket 13a for rotation about an axis MP by a handwheel 19. The bracket supports a drill holder 13 which is rotatable about the axis XY of a drill held in a chuck 13 by a toothed gear in a casing 15 engaging a rack 16 movable by a follower 17 engaging a cam 18 as the drill holder is rotated about the axis MP. The grinding wheel 4 is mounted in a block 22 vertically adjustable on a bracket in turn adjustable horizontally in two perpendicular directions on a support 24 pivoted about an axis TV on a sector 26. The sector is adjustable in two perpendicular directions on a base plate 28 pivotable about an axis SV in alignment with the axis MP. In operation, the conical surfaces 8 are ground by movement of the arm 11 so that the drill is rocked about the axis #. If the surface 9 is to the part-spherical, the axis TV is adjusted to be in alignment with the axis MP and as the drill holder is rotated about the axis MP the drill is simultaneously rotated about its axis XY. If the surface 9 is to be part-toroidal, the axis TV is displaced from axis MP and the grinding wheel is moved about axis PV as the drill is rotated about the axis #. The perpendicular distance between the axis # and the axis XY of the drill is adjustable by vertical movement of the holder 13 on its support 13a.
Patent GB-1399781-A (GB)
Title: Headset
IPC: H04R1/10
Filed: 1973-06-14
Abstract: 1399781 Headsets INTERNATIONAL STANDARD ELECTRIC CORP 14 June 1973 [22 June 1972] 28290/73 Heading H4J A headset comprises an annular polyurethane foam body 1 enclosing a support 8 (not shown) on which are mounted a bone conduction microphone 3, an amplifier 4 and a receiver 2 to which is coupled a bent exponentially shaped horn 4 which in use is positioned adjacent the ear entrance. The receiver 2 is a moving-coil pressure-chamber system and the microphone 3 is of the moving-coil pressure-gradient microphone type. The amplifier may be formed as a printed circuit.
Patent GB-600874-A (GB)
Title: Improvements connected with can openers
IPC: B67B7/46
Filed: 1945-10-26
Abstract: 600,874. Canopeners. WILCOX, F. E. Oct. 26, 1945, No. 28315. [Class 66] The cutter-blade 12 of a traction-wheel can-opener is screwed to a slide 6 guided in a hollow frame 4 and forced downwardly into the can by turning a screw-head 11, the bead of the can being gripped between a roller 15, also on the slide 6 &c., and the traction-wheel 17.
Patent GB-1190819-A (GB)
Title: Webs and Non-Woven Fabrics Of Chromed Collagen Fibres
IPC: D04H1/42
Filed: 1967-06-20
Abstract: 1,190,819. Laminates. FUJI SPINNING CO. Ltd., H. SATO, and K. WAKABAYASHI. 20 June, 1967 [1 March, 1967], No. 28444/67. Heading B5N. [Also in Division D1] A web or non-woven fabric comprises chromed collagen fibres obtained by a process comprising impregnating the chromed leather with water to loosen the collagen fibrous bundle, neutralizing the impregnated leather with dilute alkali, adding sulphate oil to the resultant semi-dried leather, and beating and opening the leather to form fine fibres with a mean diameter of 0À05 mm. and a length of less than 5 cm. The non- woven fabric is preferably laminated with at least one other web which may also comprise chromed collagen fibre or may be composed of natural and/or synthetic fibre, e.g. cotton, hemp, wool, nylon or polyethylene terephthalate. The web may be needle-punched to improve the entwining of the fibres, and the resultant fabric has improved hygroscopic characteristics.
Patent GB-1469346-A (GB)
Title: Vacuum interrupter
IPC: H01H33/664
Filed: 1974-06-27
Abstract: 1469346 Vacuum switches TOKYO SHIBAURA ELECTRIC CO Ltd 27 June 1974 [30 June 1973] 28494/74 Heading H1N To control arcing between two contacts of a vacuum switch, one or each contact 30 is associated with a respective coil 34 which is mounted on the rod 22 carrying the contact, adjacent the non-contact making face of the contact, which coil is excitable by arc current to produce an arc stabilizing magnetic field, wherein each coil comprises a plurality of sub-coils arranged in a stack and each sub-coil is in the form of a number of first separate arcuate sections 54 joined to a first central ring 48 by first radial spokes 50 and a number of second separate arcuate sections 62 joined to a second central ring 56 by second radial spokes 58 the first radial spokes extending adjacent and in parallel overlapping relation with the second radial spokes and the first arcuate sections 54 extending in one direction from the outer ends of respective first spokes adjacent and in overlapping relation with the second arcuate sections 62 which extend in the other direction from respective second spokes, each first arcuate section being connected to the corresponding second arcuate section by a connecting conductor 46. With this arrangement fields due to currents in the first radial spokes are cancelled by fields due to currents in the second radial spokes. A contact face piece, Fig. 2, not shown, is provided on each contact and is made of a ternary alloy of Cu, Te and Se. A central through bore may be provided in each contact to prevent overheating at the central portion, Fig. 7, not shown, and spiral slits may be cut in each electrode and any contact face piece on it, Figs. 5 and 7, not shown.
Patent GB-464262-A (GB)
Title: An improvement in or relating to extensible props or stanchions
IPC: E04G25/04
Filed: 1936-10-20
Abstract: 464,262. Extensible props. VIGIER, W. DE, and LANDAUER, W. Oct. 20, 1936, No. 28521. [Class 20 (ii)] An extensible prop for use in supporting shuttering comprises telescoping members 1, 2, one member having apertures to receive a cross-pin 3 which passes through a slot in the other member and rests on a screwed sleeve carried by the other member. The upper member has welded to it a flat bearing-plate 4 which is supported by welded struts 5 and is provided with apertures 6 by which the plate can be secured to shuttering. The plate and struts may be carried by a separate sleeve which can be welded to the upper end of the prop.
Patent GB-888202-A (GB)
Title: Improvements relating to means and methods of forming anchoring cavities in cast materials and to anchoring bolts for use therein
IPC: E04G15/06
Filed: 1959-08-20
Abstract: 888,202. Forming cavities in concrete. FELDMANN, A. Aug. 19, 1960 [Aug. 20, 1959], No. 28564/59. Class 20(2) A reinforced cavity is formed in concrete by means of a frusto-conical member 2 in a sleeve I secured to the shuttering 5 by a bolt 4. The bolt 4 is eccentrically positioned in the member 2 which is movable in the sleeve 1, so that when the shuttering has been removed, leaving the parts 1, 2 in the concrete the position of the bolt 4 may be altered to line up with the attachments or false ceilings &c. it is desired to support. The end faces of the member 2 have watertight layers of rubber. In a modification the frusto-conical member 2, Fig. 3, is mounted in a cavity in a rubber &c. frusto-conical member 9 in the sleeve 1. The bolt 4 engages a nut 10 in the member 9 and an eccentrically positioned threaded hole 3 in the member 2. The member 9 is removed from the sleeve 1 by distortion after the bolt 4 has been disengaged from the hole 3. The member 2 then drops into the bottom of the sleeve 1 and is re-engaged by the bolt 4 the position of which can be adjusted by turning the member 2. In a further modification the sleeve 1 or the member 9 has a cylindrical extension at the smaller end to form a socket for a concealing plug.
Patent GB-285879-A (GB)
Abstract: 285,879. Melamid, M. Feb. 24, 1927, [Convention date]. Hydrogenation, destructive.- Liquid products are obtained from carbonaceous materials, e.g. carbon, oils, tars &c. by injecting the finely divided materials intimately mixed with a catalyst into a heated retort under pressure by means of a current of hydrogen or gases containing hydrogen. The catalyst may be a metal, an alloy or a metallic oxide. Specification 256,965 is referred to.
Patent GB-298208-A (GB)
Title: Improvements in or relating to identity stamps
IPC: G09F3/02
Filed: 1928-10-05
Abstract: 298,208. Theodorescu, A. Oct. 5, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Stamps.-An identity stamp consists of a small piece of paper, cardboard &c. having imprinted or reproduced on one side the photograph, signature, &c. of the holder of the stamp, or other data, the other side being gummed to enable the stamp to be applied to the deeds, articles, products &c. to be identified.
Patent GB-416754-A (GB)
Title: A combined cinder-sifter and dust bin lid
IPC: F24B15/00
Filed: 1933-10-17
Abstract: 416,754. Sanitary bins. DICKINSON, A. C., 29, Barlow Street, Preston, Lancashire. Oct. 17, 1933, No. 28690. [Class 26.] A combined dust-bin cover and cinder-sifter, comprising a piece of wirenetting A mounted within the cover, is provided with a hinged flap D, which automatically falls to uncover an aperture B<1> when the cover is reversed to serve as a sifter. The wire-netting is held in position by wires A<1> hooked over the edges of the aperture B<1>.
Patent GB-1348859-A (GB)
Title: Flock settling duct
IPC: D01G23/02
Filed: 1972-06-20
Abstract: 1348859 Fibre feeding duct TRUTZSCHLER & CO 20 June 1972 [29 July 1971] 28835/72 Heading DIN  A hopper type duct for feeding fibres to a textile machine which receives airborne fibres from a pipe 8 has a slot 7 provided for exhausting the carrier air which is formed by a lower wall section externally overlapping an upper wall section. The slot width may be adjustable and a second similar slot may be provided in the opposite duct wall.
Patent GB-503470-A (GB)
Title: A steering device for automobile torpedoes
IPC: F42B19/01
Filed: 1938-10-05
Abstract: 503,470. Steering device for automobile torpedoes; fluid-pressure servomotor systems. SILURIFICIO WHITEHEAD DI FIUME SOC. ANON. Oct. 5,1938, No. 28895. Convention date, Oct. 5, 1937. [Class 135] Relates to a control device for connection between the gyroscope and rudder or rudders of a torpedo which, at predetermined points in the travel of the torpedo, changes the duration or amplitude of the deviations which the torpedo can carry out on either side of its normal path. The invention is shown applied to steering apparatus of the kind described in Specification 234,419, [Class 9 (ii)], two distributing valves 13, 14 being employed, the former for normal running and the latter, with somewhat longer collars 14<1>, 1411 for providing wider deviations, being brought into use at a predetermined point by interrupting the flow of fluid from valve 13 by means of spring- loaded piston valve member 22 arranged in cylinder 19 and normally held in the open position by disc 26 rotatably mounted on its shaft. Disc 28, connected to the torpedo engine through shaft 29, serves to drive disc 26, which latter may be adjusted, with the aid of pointer 31, so that at the desired point in the course of travel the rod of piston 22 may drop into hole 32, thus closing pipes 15 and' 17 and at the same time forcing disc 28 out of engagement with disc 26. Shaft 29 may be uncoupled from disc 28 if desired, thus allowing piston 22 to remain permanently in the open position. More than two distributing valves may be provided with different lengths of collar, to be brought into action successively and different control means, for example a time device, may be employed.
Patent GB-968188-A (GB)
Title: Devices for measuring nuclear radiation energies
IPC: G01T1/202
Filed: 1960-08-22
Abstract: A device for measuring nuclear radiation energies comprises a first luminophore 1 having a second or reference luminophore 2 optically coupled thereto by a light transparent epoxy or silicone resin coating 3 of a thickness sufficient to stop alpha particles, the reference luminophore 2 having substantially uniformly dispersed therein material constituting a source of alpha particle radiation, and a photomultiplier tube 9 optically coupled with the first luminophore by a glass window 7 and optical coupling 10. The alpha particle radiating material can be Pu239, Ac227, Ra226, Th230, or preferably Pb210. <PICT:0968188/C4-C5/1> <PICT:0968188/C4-C5/2> The luminophores 1 and 2 may be of the same material and can be of organic or inorganic crystalline form or can be chips of organic or inorganic crystals bound together by light conductive organic polymeric material.  The preferred luminophore 2 is a thallium activated sodium iodide crystal.  The luminophores 1 and 2 are enclosed in a metal, e.g. aluminium, housing 4 having a reflective coating 5 comprising a packed oxide coating or a vapour deposited oxide coating of magnesium or aluminium.  A housing 8 contains the photomultiplier tube 9. In a modification two photo-multiplier tubes are coupled to the luminophores 1, 2.  In the construction shown in Fig. 3 the reflective coating 15 between the luminophores 11, 12 and the housing 14 extends along the wall of the photo-multiplier tube 17 and a coating 19 of potting material is disposed between the tube 17 and the housing 18.
Patent GB-1107417-A (GB)
Title: Soles for sports shoes
IPC: A43B13/22
Filed: 1965-07-08
Abstract: A sole for a sports shoe has a longitudinal groove 10 (Fig. 1, Figs. not shown) of substantially rectangular cross-section terminating short of the edge of the sole, and transverse grooves 11 of substantially the same cross-section extending laterally from the longitudinal groove and terminating short of the sole edges.  The longitudinal groove may extend from toe to heel with the transverse grooves staggered, as in Fig. 1, may have separate heel and forepart portions, as in Fig. 3, or may have separate heel and forepart portions and additionally be divided longitudinally as in Fig. 4. Alternatively the grooves may take the form of a series of staggered U-shaped grooves, as in Fig. 5. The longitudinal groove may be curved and follow the orthopaedic axis, and the transverse grooves may be perpendicular to the walking direction or to the longitudinal groove. The ratio of width to depth of the grooves is about 3 : 1, and the side walls are rounded as they merge with the bottom surfaces of the grooves and sole.  The outer surface of the sole may be finely patterned to improve the grip.