baber/WOPTO huggingface dataset:
Patent GB-766173-A (GB)
Title: Air-depolarized electric cell
IPC: H01M12/06
Filed: 1954-09-15
Abstract: 766,173. Batteries. UNION CARBIDE & CARBON CORPORATION. Sept. 15, 1954 [Sept. 21, 1953], No. 26704/54. Class 53. An air-depolarized cell is provided with a replaceable cathode and anode unit comprising a carbonaceous cathode 25 consisting of activated charcoal or other form of carbon mixed with a vinyl or other resin and a plasticizer and moulded on two steel or other plates 24. The carbon mixture also contains a waterproofing substance such as petroleum or rubber solution and may contain a small quantity of acetylene black. The steel plates are cemented to a frame 26 which extends round the edges of the plates to form a liquid-tight air passage between the plates. The passage may be divided into two compartments by a partition 41 so that the cell can continue to function if one compartment becomes flooded with electrolyte. A zinc plate 22 is situated on each side of the cathode, the two plates being connected together and supported from the frame 26 by a bolt 28 to which a lead 31 is attached. The steel plates 24 extend upwardly into the open end of the frame 26 and carry a terminal 32. The complete unit is suspended from the cover of a jar containing a solution of potassium hydroxide. Instead of the two carbon plates a single block may be used in which the steel plates are embedded, holes for the admission of air extending from the top to the interior of the block U.S.A. Specification 2,213,429 is referred to.
Patent GB-1505380-A (GB)
Title: Subaqueous pile driving apparatus and method
IPC: E02D5/36
Filed: 1975-06-24
Abstract: 1505380 Subaqueous pile driver HOLLANDSCHE BETON GROEP NV 24 June 1975 [27 June 1974 14 Aug 1974] 26808/75 Heading E1H In a subaqueous pile-driving assembly the pile 1 is suspended on one or more cables such that at least two cable sections 2 run upwards from the top of the pile parallel to one another towards supports above water-level. The pile is lowered by the cables to the sea-bed and for the process of lowering, the pile hammer 12 is positioned in the top of the pile and lowered simultaneously with it. The hammer is guided on the cable sections by guide eyes 10.
Patent GB-332801-A (GB)
Title: A box casing for portable kinematograph projectors
IPC: G03B29/00
Filed: 1929-09-04
Abstract: 332,801. Groves, W. W., (I. G. Farbenindustrie Akt.-Ges.). Sept. 4, 1929. Kinematograph apparatus.-A box casing for kinematograph projectors provided with optical compensation for continuously moving films consists of a central base portion 6, Fig. 4, on which the projector is mounted and two side members 1 hinged to the base and enclosing the projector when shut, one of the members 1 carrying a slide 5 which, when raised, provides the aperture 4, Fig. 5, through which the picture is projected. In the closed position of the casing as shown in Fig. 1 the slide 5 is flush with the edge of the member 1. A hand strap 3 fastened to one side and hooked to the other is provided.
Patent GB-1236643-A (GB)
Title: Improvements relating to electrical bridge circuits
Inventor: ABRAHAMSON EDMUND
IPC: G01R17/10
Filed: 1968-06-06
Abstract: 1,236,643. 643. Bridge measuring circuits. E. ABRAHAMSON. June 6, 1968, No.26896/68. Heading G1U. In an impedance measuring bridge in which one arm is adjustable to balance the bridge and another arm is adjustable to change the range or scale of measurement, the balance adjuster is mechanically coupled to the scale selector such that when the balance arm is brought to a limit of its adjustment the scale is automatically changed. The invention is described in relation to a number of Wheatstone bridge configurations. In that of Fig. 8 the scale selector comprises a rotary multiposition switch 28 arranged to connect into one arm of the bridge any one of a plurality of resistors 28a to 28# and the balance adjuster comprises a rotatable contact arm 13 sweeping over a resistive coil 15, the contact being the junction between the arms of the bridge. A Geneva motion 31a, 35a or a pair of intermittently meshing gear wheels Fig. 1 (not shown) connects the operating shafts of contact arm 13 and switch arm 23 to change the position of the latter whenever the contact arm 13 reaches an end of resistor 15. In another embodiment Fig. 4 (not shown) a four-decade resistance box constitutes the balance arm and the ratio of the resistance in two other arms is automatically changed whenever the highest decade of the resistance box reaches "0" or 10". A Kelvin bridge is also described Figs. 6, 7 (not shown) in which a straight slide wire and the unknown resistor form the low resistance arms of the bridge. A pawl (161) is attached to the (platinum) slider and engages a ratchet wheel (153) when the slider reaches an end of the slide wire thereby changing the resistances in the two pairs of ratio arms. Automatic balancing. Out-of-balance is detected by a double-pole relay 209, Fig. 8, which controls a motor 207 driving contact 13. Scale changing is effected whenever contact 13 reaches a limit of resistor 15, thereby ensuring that a correct balance is automatically achieved. The motor may be the universal type or of the compound wound D.C. type having a dynamic brake to prevent overshoot.
Patent GB-913254-A (GB)
Title: Improvements in or relating to chains for use in conveyor systems
IPC: B65G17/38
Filed: 1960-08-03
Abstract: 913,254. Chains. KING, D. M. July 26, 1961 [Aug. 3, 1960], No. 26927/60. Drawings to Specification. Class 24. [Also in Group XXII] The shaped blanks from which the inner links of the chain described in Specification 869,746 are formed, are produced by the application of pressure to selected regions of the surface of a rectangular metal strip, thereby producing a localised outward flow of metal into bulbous projections from the strip's longitudinal edges, so that when the strip is bent and joined as described in the Specification referred to, the bulbous projections form the widened ends of the link. The blank may comprise a half link as in that Specification or a whole link.
Patent GB-1522055-A (GB)
Title: Extrusion process
IPC: B29C48/40
Filed: 1976-06-29
Abstract: 1522055 Extrusion apparatus JOHNSON & JOHNSON 29 June 1976 [30 June 1975] 26995/76 Heading B5A A mixture of particles of thermoplastic elastomer and of particles of resin, which are respectively of higher and lower molecular weight, are extruded into a film of not greater than 50 mils. thickness by a heated single screw extruder, and preferential adhesion of agglomerating particles to the screw 29 in its feed section adjacent an inlet 36 to the extruder barrel 46, and consequent restriction of axial displacement of the particles by the screw, is prevented by a threaded member 41 which is in mating engagement with the screw in its feed section and is freely rotatable by the screw 1, the particles being fed to the inlet 36 at a constant metered rate, Fig. 1 (not shown), which is less than, e.g. not above 75% of, the maximum conveying capacity of the transition section of the screw. The screw 29 comprises flights 44 in engagement with the member 41, which may differ from those downstream thereof. The member 41 is prevented from axial displacement by a hardened bearing 43, and is located in a section 31 of the extruder barrel, at a bolted access plate 48. The development of excess pressure of material within the section 31, is prevented by a safety tube 50 which extends through the plate 43, to terminate at a rupturable membrane 51 within an annular groove 52 extending around the member 41. The screw 29 is provided with a helical groove 39 to seal against upstream displacement of the particles and is driven by engagement within a hollow shaft extending from a gear box. The inlet 36 and section 31 are water cooled. Air entrained with the particle is expelled via the inlet 36, or at other locations in the extruder. The particles comprise 20-300 weight parts of resin, per 100 parts of elastomer, and the elastomer particles are preferably of a molecular weight of at least 75,000, and the resin particles of a molecular weight of not greater than 3,000. The composition of numerous mixtures and the applications of the film are specified. Liquid components may be added, by pumping, into the barrel downstream of the screw transition section. A powdered anti-adhesion agent may be applied to the elastomer particles.
Patent GB-775833-A (GB)
Title: Improvements in or relating to apparatus for feeding paper sheets
IPC: B65H3/42
Filed: 1955-09-23
Abstract: 775,833. Feeding sheets. HEPP, R. Sept. 23, 1955 [Sept. 25, 1954], No. 27207/55. Class 100(1) In appararatus for separating folded or unfolded sheets from a pile and forwarding them to a machine, the sheet pile 1 rests on a known kind of rotatable carrier 2 comprising three sets of rollers 3 and three suction rollers 4 which all rotate about their own axes and their axes rotate about a common shaft 5. Adjustable abutments 6, 7 register the pile on the carrier 2. Each suction roller 4 extracts the bottom sheet of the pile by engaging the front edge thereof and drawing it within the carrier 2. The front edge of each sheet is delivered by a roller 4 between the jaws of a gripper device 8, 9, fixed on the fixed frame of the apparatus, where it is gripped between a cam-controlled gripper 9 and an adjustable resiliently-mounted pad 8. The sheet edge is thus arrested and the body of the sheet is moved by known means to lie between the rotating carrier 2 and a set of brushes 20; the sheet is therefore reversed, since what was the front edge is now the rear edge and gripped by the fixed device 8, 9. The sheet is then released by the grippers and is pushed past the brushes 20 by one of three hook members 16 mounted on the carrier 2. The brushes 20 resist the movement of the sheet and the latter is thus registered by the hook 16 which pushes the sheet into the bight of a pair of feed rollers 28, 29 mounted on the frame of the apparatus. The hooks 16 are each mounted on a shaft. 17 which is rockable by cam means to retract each hook 'within the carrier when the hook passes beneath the pile 1. The set brushes 20 are carried in an adjustable frame urged resiliently towards the carrier 2. The sheets are deflected from the carrier to the feed rollers 28, 29 by a device 23 which is pivotally mounted on the frame, urged resiliently towards the carrier, and provided with an operating handle. The rollers 28, 29 carry suction means which open sheets, if they were folded, and then drop them on to a conveyer member 65. The frames W of the apparatus are pivoted at S on a base ST, and can therefore be swung away from the conveyer 65.
Patent GB-668888-A (GB)
Title: Improvements in darning machines
IPC: D04B39/02
Filed: 1949-10-25
Abstract: 668,888. Darning. O'DWYER, D. M. July 17, 1950 [Oct. 25, 1949], No. 27406/49. Class 112. In a darning device comprising a rotatable helical needle e having an eyed point, a die b having a semi-cylindrical face furnished with projections c, and a die a having a complementary face having projections d, the material to be darned is clamped between the die faces and the needle rotated to carry thread through corrugations formed in the material by the projections. The die a is provided with a cover m to give access to the needle, and a hole is provided in the cover or die to introduce the thread. The needle is carried by a screwed rod h rotated by a handle n and is guided by grooves and rollers o on the die a: After the thread has been carried through one row of corrugations the cover is opened to allow the thread to be held, the needle is withdrawn from the material by reversing its rotation, and the helices of thread are cut to leave parallel rows of running stitch in the material covered by the faces of the dies. The material is turned through 90 degrees and the operations repeated to complete the darn.
Patent GB-1331681-A (GB)
Title: Teaching and learning game
IPC: A63F3/04
Filed: 1971-06-11
Abstract: 1331681 Educational device EUROCOM ESTABLISHMENT 11 June 1971 [11 June 1970] 27548/71 Heading G5G An educational device comprises a plate 10, and a plurality of blocks adapted to be securely positioned on the plate, each block comprising a first part 24 enabling it to be fitted to the plate, a second part 21 bearing a symbol such as a letter, word, or picture, and a third part 23 adapted to fix the said first and second parts together, the portion of the block overlying the symbol being of transparent material. A flange and groove arrangement may secure the first and third parts together (Fig. 10, not shown), or interengaging pins and sockets may be provided (Fig. 6, not shown). Alternatively, the second part may be trapped within the cavity of the first part by the third part (Fig. 3, not shown). In further embodiments, the said first parts are provided with one or more pegs which engage in co-operating sockets in the plate.
Patent GB-249434-A (GB)
Title: Means for automatically controlling and maintaining the tension of cloth or fabric between rollers, rods or the like about which said cloth or fabric passes
IPC: D06C13/08
Filed: 1925-11-03
Abstract: 249,434. Havannah Mills Co., Ltd., and Roger, G. Nov. 3, 1925. Feeding webs.-For controlling and maintaining the tension of cloth or fabric passing between rollers, rods, &c., e.g. in a pile-cutting machine as described in Specification 213,723, [Class 42 (i), Fabrics, Finishing &c.], the cloth d, after passing round the drag roller b, passes round a spring or weight held roller e, then along with a band 1 over the roller c and the driving-roller g, and is delivered between the driving-roller g and a brush roller h on to a moving scray, whence it passes over a roller k to the drag roller b again. The band l also passes round a roller z in a carriage y which is connected by rods &c. t, o, n to the roller e. When the tension of the fabric increases the roller e and carriage y move to the right, thus slackening the band l and reducing the pressure between the fabric d and the driving roller g, and allowing the fabric to slip more. When the fabric tension decreases the pressure of the fabric on the roller g is increased and the slip in consequence reduced. The spindle of the roller e is limited in its motion by slots e<1> in the framework. The roller y may be the whole width of the fabric, or it may be narrower and its carriage y traversed across the fabric. The roller c also may be-driven.
Patent GB-260999-A (GB)
Title: Improved arrangement of movable jaws or claws for vices and the like
IPC: B25B1/24
Filed: 1926-11-03
Abstract: 260,999. Silvestre, A. E. Nov. 4, 1925, [Convention date]. Work-holders. - A vice adjustably secured to a machine tool table by nuts 2, 3 and 4, has the movement of its screw operated jaw 5 limited by a pin 18 on the jaw holder 6 projecting into a short groove 19 in the jaw 5, so that overhang of the jaw 5 in its holder 6 is limited and further use necessitates re-adjustment of the jaw holder 6 on the base 1 by operating and sliding T-headed bolts 12 in slots in the base. The screw 20 works partly in a greasefilled housing 20<1> and has a notched disc 23 to fit into similar notches on the handle 26 to release the handle. Fig. 3 is an arrangement of three movable jaws used on a machine table, the fixed jaws being dispensed with.
Patent GB-1466299-A (GB)
Title: Tetrakisazo pigments and a process for their manufacture
IPC: C08L21/00
Filed: 1974-06-21
Abstract: 1466299 Tetrakisazo pigments CIBA-GEIGY AG 21 June 1974 [21 June 1973] 27601/74 Heading C4P Novel pigment dyestuffs of the formula (wherein A is naphthylene or X is H, halogen, C 1-4  alkyl or alkoxy, NO 2  or esterified carboxyl; Y is H, halogen or C 1-4  alkyl or alkoxy; X 1  is H, halogen, C 1-4  alkyl, alkoxy or alkanoylamino, NO 2 , CN, CF 3 , esterified carboxyl, or optionally substituted phenoxy or aroylamino the substitution being selected from halogen and 1-4 C alkyl and alkoxy;. X 2  and X 3  are each H, halogen, C 1-4  alkyl or alkoxy, NO 2 , CF 3  or esterified carboxyl, and Y 1 , Y 2 , Y 3  and Y 4  are each H, halogen, C 1-4  alkyl or alkoxy, NO 2 , CN, CF 3  or C 2-6  alkoxy carbonyl) are prepared by coupling a. diazo or diazoamino compound of an amine of the formula with a compound of the formula Coupling may for example be effected by combining an acid solution of the diazonium salt (one example of which contains N-benzyl-Á- heptadecyl benzimidazole disulphonic acid and acetic acid) with an alkaline solution of the coupling component in a mixing jet; or by a normal coupling procedure effected in the presence of a wetting agent such as n-butyl sulphoricinoleate; or by coupling in a solution prepared using t-butyl nitrite in glacial acetic acid and dichlorobenzene. The dyestuffs are used for pigmenting high molecular weight organic material, e.g. PVC, and may be used for example in printing inks and varnishes, e.g. linseed oil varnishes, generally following aftertreatment by heating with organic solvents, e.g. orthodichlorobenzene.
Patent GB-854779-A (GB)
Title: Improvements relating to perambulator and like bodies
IPC: B62B9/12
Filed: 1959-06-16
Abstract: 854,779. Perambulator bodies. WILSON, L. N. June 16, 1959, No. 27642/60. Divided out of and addition to 854,778. Class 108(1). The side or end panel 10 of a perambulator body is turned outwardly at 10x and secured to a metal runner 2x, the lining material 6a being carried round the runner and being secured to its underside.
Patent GB-387040-A (GB)
Title: Improvements in and relating to dust guards or dust packings for axle boxes
IPC: B61F15/22
Filed: 1931-10-05
Abstract: 387,040. Axle - box sealing devices. MATTHEWS, E. F., Elm Cottage, Watford Road, Wembley, Middlesex. Oct. 5, 1931, No. 27649. Convention date, Oct. 6, 1930. [Class 12 (i).] An axle-box 1 has an oil-retaining ring 15 to prevent excessive lubricant from reaching the dust packing which is in two parts 6, 7, clamped round the journal by a spring 9. A packing plate 13 of leather, rubber, or the like and preferably in one piece is inserted between the dust packing and the outer wall of the dust chamber and covers the joints in the dust packing 6, 7. Leaf springs 16, 17 press the packing and the plate 13 against the wall 4 of the dust pocket. The wall 4 is detachable from the axle-box 1 and the hole therein is sufficiently large in one direction to allow it to be passed over the ring 15 when tilted. When the plate 13 is in one piece and is not elastic it has a partial slit to enable it to pass over the ring 15.
Patent GB-882490-A (GB)
Title: Improvements relating to the ejection of workpieces from machine tools
IPC: B23Q39/04
Filed: 1958-08-28
Abstract: 882,490. Work-ejector devices. GAUTHIER G.m.b.H., ALFRED. Aug. 28, 1958 [Sept. 14, 1957], No. 27678/58. Class 83 (3). In a machine-tool having a turret indexable through 360 degrees for carrying workpieces in succession to a number of tool-heads, each finished workpiece is ejected during indexing of the turret. The turret 1 rotatable in a bearing 3 has a number of work-locating members 7 slidable in bushes 8 to feed the work to a number of tool units 5 arranged around the turret 1. A projection 9 is secured on the turret adjacent each member 7, and a lever 12 is pivoted at 14 on a post 13 between two working positions of the turret. During indexing, the pin 9 adjacent the workpiece which has just been completed, engages a cam surface 12c on the lever to rock it against a spring 15 and cause a dog 12d thereon to raise a plunger 10 to eject the finished work. As the next machining position of the turret, the empty member 7 is ready to receive a new workpiece.
Patent GB-960720-A (GB)
Title: Refractory metal compounds
Inventor: KRAMERS WILLIAM JULIAN
IPC: C04B35/48
Filed: 1958-08-28
Abstract: A refractory compound having an hydrogen dissociation pressure comprises a metal, a non-metal comprising nitrogen, oxygen, or carbon, and hydrogen in an amount not less than 0.25 atoms of hydrogen per atom of metal, the non-metal being combined with the metal to form a crystal lattice, and the hydrogen being chemically bound in the lattice and being displaceable as free hydrogen without disrupting the lattice. The metal is preferably zirconium, titanium, or a rare earth metal, including yttrium; these metals may be present together with calcium, or with lithium or plutonium in an amount up to 20% of the total metal ions. The compounds may be prepared by heating a metal hydride with a refractory metal oxide, carbide, or nitride in the presence of hydrogen to form a single phase product; reaction normally takes place at above 1000 DEG  C. but in the case of lithium compounds may be as low as 500 DEG  C. Compounds containing sulphur, carbon, or nitrogen in addition to oxygen are prepared by heating a metal hydride with a refractory metal oxide and a metal sulphide, carbide, or nitride in the presence of hydrogen. Metal compounds (e.g. lithium hydroxide) which produce the desired oxide &c. at reaction temperature may be used.  In examples (1)-(3) cerium oxide and cerium hydride are heated in hydrogen at 1250 DEG C. to form CeO0.75H1.5; (4) zirconium nitride is heated with zirconium metal powder at 1500 DEG  C. in hydrogen to form ZrN 1/3 H1.2; (5) a mixture of zirconium metal powder and graphite is heated in hydrogen to 1600 DEG  C. forming ZrC 2/3 H\ba1/4 ; (6) a mixture of cerium hydride, cerium monosulphide, and cerium oxide is heated in hydrogen to 1200 DEG  C. forming Ce2OSH2; (7) lithium hydroxide, lithium hydride, and zirconium metal powder are heated in hydrogen to 700 DEG  C. to form LiZr0,2O0.5H 2/3 ; (8) calcium hydride and zirconium oxide are heated in hydrogen at 1500 DEG  C. yielding CaZrO2H1,0; (9) zirconium oxide, zirconium metal, and graphite are heated in hydrogen at 1600 DEG  C. yielding ZrO0.6C0.2H0.8; (10) a mixture of alumina and cerium hydride heated in hydrogen at 1250 DEG C. yields cerium aluminium hydro-oxide; (11) a mixture of zirconium disulphide, zirconium oxide, and zirconium metal is heated in hydrogen at 1300 DEG  C. forming Zr2OSH; (12) a mixture of cerium sulphide, cerium hydride, and lithium hydroxide heated at 1250 DEG C. in hydrogen forms cerium lithium hydro-oxysulphide; (13) lithium hydroxide and titanium anhydride heated at 900 DEG  C. in hydrogen form lithium titanium hydro-oxide; (14) titanium dioxide and titanium dihydride heated to 1200 DEG  C. in hydrogen from titanium hydro-oxide.  The materials formed are useful as solid moderators in high temperature nuclear reactors; their neutronic properties may be altered by adding a small quantity of uranium or by isotopic replacement of hydrogen.  The third Provisional Specification refers to the preparation of ceramic materials containing beryllium or uranium.
Patent GB-820127-A (GB)
Title: The method of butt joining a pair of metallic tubes
IPC: B23K11/00
Filed: 1956-09-11
Abstract: 820,127. Welding by pressure. COMBUSTION ENGINEERING Inc. Sept. 11, 1956 [Sept. 19, 1955; Aug. 24, 1956], No. 27736/56. Class 83 (4). In butt joining a pair of tubes 10, 12 of wall thickness between 1 ¢ and 3 inches, the wall thickness A of each tube is reduced adjacent the end to be joined to about half thickness, the reduced ends are pressure welded and wire having a coefficient of thermal expansion the same as that of the tubes is wound under tension about the reduced portions to offset the weakening in hoop strength brought about by the reduction in wall thickness. A pair of tubes 10, 12, e.g. for use in high temperature and high pressure boilers, are reduced from their outer diameter to about half thickness and are pressure welded using an induction coil about the ends to effect heating. After welding wire 14 is wrapped helically about the reduced portions, more layers being provided than necessary to offset the loss of hoop strength.