baber/WOPTO huggingface dataset:
Patent GB-757549-A (GB)
Title: A multi-speed gear change mechanism
IPC: F16H3/10
Filed: 1954-03-25
Abstract: 757,549. Variable-speed gearing. RAMBUSEK, H. March 25, 1954 [April 30, 1953], No. 8767/54. Class 80(2) Gearing giving six forward ratios comprises two friction clutches A, B for transmitting the drive from a driving shaft 10 and a common casing 12 to either a shaft 19 direct on a countershaft 25 through a hollow shaft 20 and gears 23, 24. Secured to shaft 19 is another gear 30 meshing with a gear 29 free on shaft 25 and adapted to be clutched to an output shaft 31 through a dog clutch 5. A sleeve 27 free on shaft 25 carries a gear 28 meshing with a gear 32 free on shaft 31 and is adapted to be clutched by dog clutch 1 to the gear 29 or by dog clutch 2 to the shaft 25. A further gear 26 secured to the shaft 25 meshes with a gear 33 free on shaft 31. Dog clutches 3 and 4 are adapted to clutch the gears 33, 32 respectively to the shaft 31. This arrangement of clutches allows the engagement of the dog clutches of a new speed whilst one speed is operative through one of the friction clutches A, B, this clutch then being disengaged whilst the other is engaged to bring in the new speed without any substantial interruption .of the drive. The clutches A, B are of the over-running type, having the inner plates carried on members 15 in screw-threaded engagement with sleeves 17, 18 secured to shafts 19 and 20 respectively, to facilitate this operation. The engagement of the dog clutches for a new speed is also facilitated by two friction synchronizing clutches 51 and 52, the inner plates of which are secured to shaft 25 whilst the outer plates are secured respectively to a gear 45 meshing with a gear 46 on shaft 19 and to gear 29. Alternate operation of these clutches effect the necessary synchronization of the gear parts and dog clutches for the next speed selection. Two reverse speeds corresponding to the first two forward speeds are obtained by a gear 50 on shaft 25 engaging a gear 51 on a shaft 52 which is clutchable at 6 to a free gear 53 in mesh with a gear 54 on a shaft 31, the clutch 6 being engaged instead of clutch 3. The actuation of the clutches A, B and the dog clutches 1-6 can be effected by a single camshaft which is rotated to select and engage any desired speed and may be operated by auxiliary power such as an electric motor or pneumatic means. The ratios of the gear are preferable graduated according to a geometrical progression.
Patent GB-728622-A (GB)
Title: Improvements in or relating to cable retaining device
Inventor: VOGEL ALVIN RAYMOND
IPC: B64C13/02
Filed: 1953-03-31
Abstract: 728,622. Cable-retaining devices. NORTHROP AIRCRAFT, Inc. March 31, 1953, No. 8879/53. Class 78 (5). A cable-retaining device includes a roller 17 slidably mounted on fixed post 14 and resiliently pressed into position by spring 19, the device being positioned close to pulley 11 so that the cable roved around the pulley may be removed against the spring.
Patent GB-810800-A (GB)
Title: Improvements in spades
IPC: A01B1/02
Filed: 1954-03-26
Abstract: 810,800. Spades. WILKINSON SWORD Ltd., and RANDOLPH, H. B. June 22. 1955 [March 26, 1954], No.8896/56. Class 6(2). A spade blade 12 comprises a working edge 12d inclined to the sides of the blade and is integral with the stirrup 12a whereby foot pressure may be executed at the centre of the upper edge 12c of the blade. The portion 12e of the spade is hollow ground and the working edge may be made self sharpening by treating the blade so that its front face is harder than the rear one.
Patent GB-385584-A (GB)
Title: Process for the production of phosphor-steels
IPC: C22C38/00
Filed: 1931-03-23
Abstract: Rails, tyres, sheets, structural members, and other articles made from high-phosphorus carbon steel which may contain also other metals such as copper, nickel, and aluminium, are rapidly cooled from over 650 DEG  C. after casting or after an intermediate heat treatment, or after the hot shaping.  The cooling may be effected by means of air or water under pressure, or by quenching outright in water or oil.
Patent GB-957959-A (GB)
Title: New type of wax and petroleum resin mixed emulsions
IPC: C09K23/00
Filed: 1962-03-08
Abstract: Mixed dispersions of paraffins with resins derived from steam cracked petroleum fractions are prepared by mixing the resin with the paraffin at a temperature above the softening point of the resin/paraffin mixture, a carboxylic acid or carboxylic acid containing material added, the mixture cooled and a base then added to form with the acid an anionic emulsifier, followed by the gradual addition of water with agitation until the resulting emulsion changes from water in oil emulsion to an oil in water emulsion. The petroleum resins are those obtained by polymerisation in the presence of Friedel-Craft catalysts of steam cracked petroleum distillates boiling in the range 300 to 280 DEG C. and contain a ratio of olefins to diolefins sufficient to give a resin. The paraffin is one obtained by dewaxing a heaving petroleum oil distillate of melting point 48 to 54 DEG C. or crude or refined petroleum wax or petroleum jelly. The emulsifiering the potassium or sodium oleate, or a soap formed by the reaction of potassium or sodium hydroxide with colophony or a potassium or sodium soap of a vegetable fatty acid together with an amine.
Patent GB-805642-A (GB)
Title: Improvements in or relating to the mounting of spinning and twisting spindles in the spindle rails of textile machines
IPC: D01H7/10
Filed: 1956-03-22
Abstract: 805,642. Mounting spindles. SKF KUGELLAGER FABRIKEN G.m.b.H. March 22, 1956 [March 23, 1955], No. 9008/56. Class 120(2) [Also in Group XXXII] A spindle base 3 is mounted in a spindle rail by means of a flange 4 and resilient washer 5, which may be of plastic, and a resilient sleeve 6, one end 8 of which engages a groove 9 in the rail 1 while the other end 7 embraces the spindle base 3, a nut 10 on the base 3 serving to compress the sleeve 6 and secure it on the base 3. In a second embodiment, resilient sleeves similar to 6 are placed around the spindle base 3 on both sides of the spindle rail 1. In two further embodiments, the resilient sleeve 6 is replaced by a cylindrical sleeve with an end-piece or a double-walled sleeve. Specification 586,608 [Group XXXII] is referred to.
Patent GB-1142962-A (GB)
Title: Improvements in and relating to angular rate sensers
IPC: G01C19/66
Filed: 1966-03-01
Abstract: 1,142,962. Photo-electric rotation sensors. HONEYWELL Inc. March 1, 1966 [March 1, 1965], No.9017/66. Heading G1A. [Also in Division H1] A laser angular rate sensor comprises a block provided with channels therein in which laser action takes place arranged to form a polygonal lasing path. A quartz block 10 is provided with three tunnels 12, 14, 16 bored therethrough which meet at the corners of the triangular block 10, mirrors 24, 20, 26 being bonded at the corners to reflect light from one tunnel into the next. A cavity 28 in the block is connected by hole 36 to the tunnel 12 and the exterior of the block and acts as a reservoir for the gas laser active medium. In operation a D.C. discharge is produced between cathode 32 inserted in the cavity 28 and anode 40 inserted in the end of tunnel 14 and between cathode 32 and anode 38 inserted in the end of tunnel 16. By causing the laser gyroscope to discharge in two opposite directions to two anodes this cancels out the effects of the Fresnel drag effect, adjustment being provided by potentiometers 59, 63. The discharge in the laser gas causes two beams to be generated along a path 82 in opposite directions which beams will be of the same frequency unless the block 10 is rotating about an axis perpendicular to the triangle of tubes. In order to sense any difference in frequency a prism 90 is handed to mirror 26 so as to combine the two laser beams and project them on to a detector with a slight angle # between them. The angle # causes a fringe pattern to be generated on the surface of a detector array 91 the fringes moving in one direction or the other depending on which light beam has the greater frequency, the direction and rate of movement of the fringe pattern being indicative of the rate and direction of rotation of block 10. Mirror 20 may have a slightly curved surface 100.
Patent GB-1388385-A (GB)
Title: Distance measuring equipment
IPC: G01B3/12
Filed: 1971-04-08
Abstract: 1388385 Gauging SMITHS INDUSTRIES Ltd 7 April 1972 [8 April 1971] 9134/71 Heading B3B [Also in Division G1] A known transducer 13 having a rotatable shaft 12 is fixed to a slidable lathe saddle and provides a metal roller 11 which runs along the top of a steel rod 10 mounted at its ends on a fixed part of the lathe. A casing 15 attached to the transducer houses a slidable circular block 18 which rotatably journals a grooved wheel 14 and presses it by means of a spring of bellville washers 22 against the underside of the rod 10. As the lathe saddle moves along the lathe bed, the distance moved is indicated by the transducer. Errors due to deformation of the roller 11 are corrected.
Patent GB-402312-A (GB)
Title: Improvements in driving gear for rolling mills
IPC: B21B35/12
Filed: 1933-03-27
Abstract: 402,312. Skew rolling. VEREINIGTE STAHLWERKE AKT.-GES., 69, Breitestrasse, D³sseldorf, Germany. March 27, 1933, No. 9231. Convention date, Feb. 2. [Class 83 (iv).] In a skew rolling mill Figs. 1 and 2, the gears f of each roll are driven by a surrounding internally toothed ring e and by a central gear b<2>. A motor c drives the ring f and motor d drives the gear b<2>. Thus each roll gear is supported by gear drives on each side to negative the thrust. The gears may also be hyperbolic or conical.
Patent GB-689830-A (GB)
Title: Improvements in aerial constructions
IPC: H01Q19/30
Filed: 1949-12-08
Abstract: 689,830. Aerials. RICHARDSON, J., and FRUIN, W., (trading as TELECRAFT). Dec. 8, 1950 [Dec. 8, 1949], No. 9232/52. Divided out of 689,783. Drawings to Specification. Class 40 (vii) . The Specification relates to a television H-type aerial as disclosed in Specification 689,783 and the claims relate to the clamp arrangement for attaching the horizontal member to the top of the vertical post.
Patent GB-526701-A (GB)
Title: Improvements in or relating to the separation of minerals
IPC: B03B5/44
Filed: 1939-03-23
Abstract: 526,701. Separating solid materials. DU PONT DE NEMOURS & CO., E. I. March 23, 1939, No. 9233. Convention date, April 5, 1938. [Class 82 (ii)] In processes of separating minerals, e.g. coal, by means of organic liquids of intermediate specific gravities, adhesion of the separating liquid to the minerals is prevented by applying to the surface of the minerals an equeous solution, true or colloidal, of a first substance of a kind which reacts with a second substance to form a water-insoluble product, washing the minerals as by water sprays, and then applying thereto the second substance. Both the first and second substances may be, and the second substance must be, "active agents" in the sense defined in Specifications 501,655 and 521,883, such agents being listed therein. The first substance, when not " active may be, for example, iron or other heavy metal salts, azo dyes, phosphomolybdic acid, potassium bichromate &c. The separating liquid may be any of those listed in the above Specifications, the treatment in the separating liquid following the treatment with the two substances above described.
Patent GB-1034787-A (GB)
Title: Polymers derived from alicyclic ketones
Inventor: VEITCH JAMES
IPC: C08G69/00
Filed: 1964-03-05
Abstract: Polymers are obtained by reacting together formaldehyde, water and an alicyclic ketone containing five or six carbon atoms in the ring and having at least one cyanoalkyl group on each of the carbon atoms adjacent to the carbonyl group, the reaction taking place in a medium containing sulphuric acid.  Preferred polymers have the formula <FORM:1034787/C3/1> where n is an integer, A is di- or tri-methylene group, which may be substituted, and R1 and R2 are hydrogen atoms, alkyl groups or the same group as the other substituent on the same carbon atom.  In examples polymers are obtained by reacting 2:2:6:6-tetracyanoethyl-cyclohexanone, 2:6-dicyanoethylcyclohexanone and di(cyanoethyl)dihydroisophoron with formaldehyde in aqueous sulphuric acid solutions which in some instances contain acetic acid and formic acid.
Patent GB-140230-A (GB)
Title: Improvements in shelves and the like
IPC: A47B65/00
Filed: 1919-04-12
Abstract: 140,230. Gilbert, A. April 12, 1919. Shelves and shelf fittings.-A shelf for preventing wear of books or loose-leaf binders is provided with one or more travelling bands passing completely round the shelf and adapted to slip readily so that the band moves with the book when this is placed on the shelf. The bands 1 may have one or more non-slipping bands 2 on the outer side, and may be prevented from lateral displacement along the shelf by cords 4 travelling in grooves in the shelf, or by slots at the front and rear edges of the shelf of the same width as the bands. Rollers may be fitted at the edges of the shelf to facilitate movement of the band.
Patent GB-1446538-A (GB)
Title: Process for the preparation of a bisphenol bischlorocarbonic acid ester
IPC: C07C315/04
Filed: 1975-03-06
Abstract: 1446538 Preparation of bisphenol bischlorocarbonic acid esters BAYER AG 6 March 1975 [6 March 1974] 9339/75 Heading C2C A continuous process for the preparation of bisphenol bischlorocarbonic acid esters wherein an aqueous dialkali metal salt solution of a hydroquinone or of an aromatic dihydroxy compound of the general Formula I in which X represents an alkylene or alkylidene with 1 to 6 carbon atoms, a cycloalkylene or cycloalkylidene with 5 to 15 carbon atoms, O, S, SO 2  or and R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, represent an alkyl group with 1 to 4 carbon atoms or chlorine or bromine atom, together with an alkali metal hydroxide solution is reacted with 2À5-5À0 mol per mole of dihydroxy compound of phosgene dissolved in a suitable solvent for the bischlorocarbonic ester formed, in a pump circulation reactor under the addition of an alkali metal hydroxide solution to keep the pH value between 9À0 and 12À0 the organic phase is separated from the reaction mixture and therefrom the bisphenol bischlorocarbonic acid ester isolated by distillation and/or crystallization. Examples are described with reference to a diagrammatic apparatus. One Example describes the preparation of polyurethane from bischlorocarbonic acid ester of 2,2-bis-(phydroxyphenyl) propane obtained by the method of the invention by adding to a mixture of a solution of 2,2-bis(p-methyl-aminophenyl)- propane in methylene chloride and a solution of sodium hydroxide in water after addition of triethylamine as catalyst. The product can be used to produce the fed articles such as fibres, films and foils.
Patent GB-676972-A (GB)
Title: Improvements in and relating to document holders for use with photographic copying cameras
IPC: G03B27/62
Filed: 1949-04-06
Abstract: 676,972. Photographic copying apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. April 6, 1949 [April 7, 1948], No. 9394/49. Class 98 (i). In a document holder for use with a photographic copying camera wherein a book or document to be photographed is placed upon an entablature comprising two separate document-support plates in side by side relation, the said support plates are capable of vertical movement toward a transparent planar surface between the entablature and the camera, this movement is effected by a pedal and the mode of movement is selective in that the documentsupport plates can be moved either by means in direct contact with the pedal or by a balance arm, the pivot of which can be raised or lowered by mechanism associated with the pedal. The document holder shown comprises a frame 1 on which columns 4, 5 carrying document support plates 6, 7 are slidable in guides 3. Pegs 8, 9 on the columns engage vertical guides 10 so that the columns cannot rotate. Axles 20 on the columns are engaged by arms 19 pivoted on the same axis as a pedal 13, which is provided with arms 15. Through each arm 15 passes a screw 16 and this screw engages a lug on the corresponding arm 19. Thus, by operating the screws the plates 6, 7 may be independently raised or lowered, and by actuating the pedal 13 the plates can be simultaneously raised through the same distance. There is also provided a bar 21 which is slidable vertically in guides 22 and is prevented from rotation by an arm 23 which engages the guides 10. This arm carries a rod 24 and also has pivoted thereto at 29 a balance arm 28 which engages under the pegs 8 and 9 ; the pivot 29 can be raised or lowered by a screw 27. Arm 24 engages above the arms 15 on the pedal 13 and so by operating the screws 16 to remove the arms 19 from axles 20, and then operating the pedal 13 the plates 6, 7 can be moved under the control of the balance arm 28. Bar 21 carries an arm 25 which is adapted to interfit with the binding of a book and the pedal 13 is operated to press the book against a transparent platen 2 between the plates 6, 7 and the copying camera. Specifications 487,997 and 688,158 are referred to.
Patent GB-236671-A (GB)
Title: Improvements in release mechanism for dropping bombs and other articles from aircraft
IPC: B64D1/04
Filed: 1924-04-14
Abstract: 236,671. Holland, H. W., and Mansfield, W. April 14, 1924. Dropping bombs from a height.-Two jaws 3. 4 are pivoted on a single horizontal pin 2, and a single locking lever 10 influenced by a spring 15 is pivoted at 11 and adapted to hold both jaws in the closed position by means of inter. engaging parts 7, 9 and 12, 13, and also to hold one or both jaws in the open position; for example, the jaw 3 by the engagement of a, part 8 with the part 9. The jaws are adapted to grip the shackle 5 of a bomb; one or both of the jaws have secured thereto a lug 6 which causes the jaws to close when a shackle is inserted between them. An actuating cable, not shown, is attached to the lever 10 by a clip 16. Specification 212,036 is referred to.
Patent GB-1424800-A (GB)
Title: Structural members and supportin frameworks
IPC: E04B9/08
Filed: 1972-06-26
Abstract: 1424800 Framing members for suspended ceilings ELECTRONIC COMPONENTS Ltd 24 Sept 1973 [26 June 1972] 9524/74 Divided out of 1424799 Heading E1W An elongate structural member 11 for a suspended ceiling framework comprises a vertical web with a horizontal flange extending along the lower edge in which the web has a projecting tab 22 at at least one end for interlocking with a slot in a transverse member 10. The tab 22 has first and second longitudinally spaced locating formations 23 and 25 respectively, the first being adjacent the end of the tab and projecting laterally from the tab providing an inclined front face and a generally perpendicular rear face while the second similarly projects but provides inclined or rounded front and rear aspects so that it resists further insertion of the tab in the slot in the normal way but allows further insertion in the event of fire causing thermal expansion. The disclosure is substantially identical with that of the parent. The subject matter of Specifications 1424798, 1424799, and 1380574 is referred to.
Patent GB-192963-A (GB)
Title: An improvement in the carburation system on the ford motor car
IPC: F02M1/00
Filed: 1922-04-04
Abstract: 192,963. Whall, W. J. April 4, 1922. Spray carburettors. -A device for heating and controlling the air supply to a Holley carburettor as used on the Ford car, comprises a nozzle piece A adapted to fit over the air inlet pipe close to the air valve and connected by a flange and screws to an elbow piece D connected by flexible tubing J to a sheet steel casing L on the exhaust manifold. A groove M at the rear of the nozzle piece accommodates a sliding shutter F actuated by a screwed rod G passing through a piece E fitting over the flanges of nozzle and elbow pieces. Brown paper packing is inserted at the joints X and between the air inlet pipe and nozzle piece which is secured by screws A<2>. The parts A, D, E, F are of aluminium.
Patent GB-952011-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: STANNERS WALTER FORRESTER
IPC: G21C15/04
Filed: 1962-03-13
Abstract: 952,011. Nuclear reactors. GENERAL ELECTRIC CO. Ltd. Jan. 25, 1963 [March 13, 1962], No. 9633/62. Heading G6C. In the core 1 of a gas-cooled, graphite-moderated nuclear reactor, fuel elements 3 are located in passages 2 through which the cooling gas flows upwards and neutron absorbing rods 5, e.g. of iron, are positioned within passages 4 for controlling the neutron flux within the core so as to maintain a power rating distribution which is assymetrical in the direction of coolant flow and generally decreasing in this direction. The rods 5 are suspended by wires 6 from hoists 7 whereby their axial position can be adjusted. Without the rods 5 the neutron flux, and hence the power rating, would tend to be symmetrical in the axial direction following a cosine distribution. If the rods 5 are 0. 65L in length (L = length of the passages 4) and are positioned so that their centres are at a distance of 0. 6L from the lower face of the core, then the power rating is suitably assymetrically distributed. In this way the total power output can be increased by about 7% for a constant coolant mass flow. In an alternative arrangement the rods 5 have non-uniform neutron absorbing properties along their length, either being of varying crosssection or composed of sections of different materials, it not being necessary in this case for the rods 5 to be shorter than the channels 4.
Patent GB-535754-A (GB)
Title: Improved flashlight synchronising device for a photographic shutter
IPC: G03B9/70
Filed: 1940-06-03
Abstract: 535,754. Cameras combined with flashlamps. KODAK, Ltd. June 3, 1940, No. 9687. Convention date, Sept. 22, 1939. [Class 98 (i)] In means for synchronizing a flashlight with a photographic shutter, a part of the shutter mechanism carries or forms an electric contact which engages a second contact which is automatically moved into the path of the first when connections are made to the flashlight circuit, but is at other times out of the path of the first contact so as not to interfere with the timing of the shutter for ordinary exposures. As shown applied to a shutter similar to that described in Specification 491,885, a contact pin 4 on the blade-operating ring engages a spring contact 7 when the shutter is released and completes the circuit of the flashlamp 17 through leads attached to a plug 14 screwed into the side of the shutter, connection to the contact 4 being by way of the body of the plug and the shutter parts, and connection to the spring contact 7 being made by a central pin 21 in the plug. The spring contact 21 is normally out of the path of movement of the pin 4, but is forced into the operative position shown by the pin 21 when the plug is inserted.
Patent GB-251419-A (GB)
Title: Improvements in and relating to flying machines
IPC: B64C27/04
Filed: 1925-04-14
Abstract: 251,419. Hoback, J. H., and Nendel, r. April 14, 1925. Screw and like propellers.-Lifting and driving propellers for aircraft comprise two substantially semi-circular blades 11, Fig. 3, pivoted on pins 14, Figs. 4 and 5, on the shaft and rocked to vary the pitch by a pin-and-slot arrangement 19, 20 controlled by a rod 17 passing down the centre of the shaft.