baber/WOPTO huggingface dataset:
Patent GB-535580-A (GB)
Title: Improvements in or relating to rotary printing presses
IPC: B41F9/06
Filed: 1939-10-11
Abstract: 535,580. Printing-machines. GOSS, PRINTING PRESS CO., Ltd. Oct. 11, 1939, No. 27685. Convention date, Dec. 21, 1928. [Class 100 (ii)] Inking apparatus.-In a rotary printing press, particularly a rotogravure press, having the printing cylinder mounted in an ink fountain having side walls in sealing engagement with the cylinder and end walls spaced from the ends of the cylinder, these spacers are sealed by resilient plates 25 overlapping the ends of the cylinder, means being provided to hold 'the plates down in flexed position to engage the cylinder and form a seal or to release them to allow them to spring up to provide free access for the insertion or removal of the cylinder. Each plate 25 is fixed at one end by a bar 26 to an arcuate support 21 fixed to the end wall of the fountain and at the other end is provided with holes to engage over notched pins 30 carried by the support, a sliding latch plate 33 being provided on the plate to engage the pins 30 to hold the plate down. The Specification, as open to inspection under Sec. 91, states also that the reciprocating doctor blade 12 is backed by a resilient plate 16 the pressure of which on the blade is controlled by the engagement therewith of the ends 41 of the supports 21 which are angularly adjustable by means of slots 42 through which the fixing bolts for the supports pass. This subject-matter does not appear in the Specification as accepted.
Patent GB-1081034-A (GB)
Title: Viewing system
IPC: G02B27/01
Filed: 1965-06-30
Abstract: 1,081,034. Cathode-ray tube displays. UNITED AIRCRAFT CORPORATION. June 30, 1965 [July 29, 1964], No. 27696/65. Heading H4T. [Also in Divisions B7 and G2] An aircraft head-up indicator arrangement comprises an aspheric semi-reflector 26 having its optical axis Z-Z<SP>1</SP> parallel to, and below, the line of sight. As shown, Fig. 2, the semi-reflector 26, which forms part of the windscreen, is of paraboloidal shape with a partially reflecting film 28 of aluminium on its inner surface and an anti-reflection coating 30 of magnesium fluoride on its outer surface. The instrument may be a C.R.T. 24 (see also Fig. 1) having its axis along the optical axis Z-Z<SP>1</SP> its deflection centre at the vertex V of semi-reflector 26 and its screen 32 at the focus F thereof, the screen 32 having a metal target 34 with its phosphor coating 36 on the inner surface and being slightly aspheric in form. In a modification, Fig. 3 (not shown), the image to be viewed is passed through a lens (46) to a fibre optic device (44) whose remote end (48) is positioned in the focal plane of the semi-reflector (26).
Patent GB-298895-A (GB)
Title: Improvements in the methods of manufacturing shoes
IPC: A43B23/02
Filed: 1928-09-27
Abstract: 298,895. Defossez, L. E. C. Oct. 15, 1927, [Convention date]. Uppers.-The quarter 2 and vamp 3 of a boot or shoe is split as at 1 to house the edges of the stiffener and blocked toe.
Patent GB-706165-A (GB)
Title: Machine gun
IPC: F41A17/46
Filed: 1952-11-04
Abstract: 706,165. Machine guns. DANSK INDUSTRI SYNDIKAT, COMPAGNIE MADSEN AKTIESELSKAB. Nov. 4, 1952 [Nov. 17, 1951], No. 27734/52. Class 92(2) Relates to machine guns of the kind in which the reciprocating breech body comprises a breechblock 11, striker 14, firing pin 12, and pawls 15 adapted to move outwards into engagement with supporting surfaces 16 of the receiver in order to lock the breech-block in its closed position. According to the invention the breech-block is encased by a tubular device 6 affixed to the striker and having apertures for the passage of the pawls into the locking position when the breech is closed, the pawls being held inwards by the walls of the device 6 when the striker is withdrawn. In the construction shown, the device 6 terminates in a head 7 into which the head 8 of the striker is inserted and secured. In the annular space around the head 8 is a spring-urged bushing 20 which, by the spring, is forced over lugs 18 on the pawls 15 when the latter are in the retracted position. The firing mechanism includes a trigger 23, a sear 28 on a bar 27 pivoted at 26, a safety device, and a two-armed lever 30 co-operating with the trigger and with a lug 21 on the bushing 20. Operation. With the parts in the cocked position a pull on the trigger depresses the bar 27 withits sear 28 to release the breech body and also depresses the rear end of the lever 30 to bring a nose 31 on its front end into the path of the lug 21 on the bushing 20. The lever is held locked in this position by a spring-controlled latch 34. The released breech body now moves forwards under the action of a spring 5, and in the course of its travel the nose on lever 30 engages the lug 21, thus moving the bushing 20 against the action of the spring 22 to release the pawls 15. When the breech-block reaches its closed position, the device 6 continues its forward movement until the enlarged head 8 of the striker moves the pawls outwardly to the locking position shown. In the meantime the latch 34 has been moved by a stop 10 depending from the head 7. On firing, the device 6 is moved to the rear by a gas piston and inclined faces 19 on the forward edges of its apertures engage and retract the pawls 15 to their inner position where they re-engage the bushing 20. The safety device consists of a slidable plate 37 which when moved to the rear tilts the latch 34 to the unlatching position shown and which, by a flange 40, engages beneath the lever 30 thus preventing movement of the trigger.
Patent GB-1321641-A (GB)
Title: Coating for polysulphones
IPC: C08J7/046
Filed: 1970-06-09
Abstract: 1321641 Organopolysiloxane coated polysulphane surfaces OWENS-ILLINOIS Inc 9 June 1970 [9 June 1969] 27736/70 Heading B2E [Also in division C3] An article having a polysulphane surface is coated by (A) applying a solution of a solventsoluble, further curable organo-polysiloxane in an organic solvent to the polysulphane surface, the organopolysiloxane being a hydrolysis and condensation product of a methyltrialkoxysilane optionally in admixture with a phenyltrialkoxysilane, the alkoxy groups in each silane containing not more than six carbon atoms, prepared by (i) heating the silane and water for 1-10 hours at a temperature between ambient and reflux to produce a siloxane partial condensation product and (ii) concentrating the siloxane partial condensation product to remove 50-90 mole percent alkanol by-product and water, and (B) evaporating the solvent for the organo polysiloxane and remaining water, if any, and curing the organopolysiloxane. The concentrated siloxane partial condensation product may be precured at a temperature below the gel point and solidified by techniques which may include flaking or spray drying, and then dissolved in a solvent at a concentration of 5-85% by weight. The polysulphane surface may comprise a polyacrylsulphane or aliphatic sulphane. In the examples further curable organopolysiloxanes prepared from methyl triethoxysilane, optionally in admixture with phenoyltriethoxysilane, dissolved in a mixture of n-butanol and methyl isobutylketone, nbutanol or acetone and optionally containing gamma-aminopropyl triethoxysilane are applied to flame treated transparent rigid polyarylsulphane substrates by dipping, spraying, roller or flow coating and heated in an oven to evaporate the solvent and cure the organopolysiloxane resin.
Patent GB-264613-A (GB)
Title: Improvements in or relating to wagon tipping apparatus
IPC: B65G67/00
Filed: 1925-11-05
Abstract: 264,613. General Electric Co., Ltd., and Marshall, C. H. Nov. 5,1925. Rotary tipplers.-The tippler comprises one or more annular frames, each consisting of two sections 1, 2 hinged together at 3. The section 2 rests upon a roller 13, or upon a guide, 16, until the tippler has turned sufficiently to allow the cross-bar 14 to rest upon the top of the wagon. Further movement brings the hinge 3 past, the supporting roller 4 so that the weight of the wagon is transmitted to the support 4 through the section 2. The wagon rests upon a platform 7, hinged to the tippler at 8, which is supported on the cradle at 11 until the wagon is tilted sufficiently to cause it to swing over against the side support 12. The parts resume their normal position under gravity on righting the tippler.
Patent GB-887001-A (GB)
Title: Improvements in and relating to laminated structural elements and apparatus for making such elements
IPC: B32B27/00
Filed: 1957-09-03
Abstract: 887,001. Laminates. ADIE, G. M. Sept. 3, 1958 [Sept. 3, 1957], No. 27840/57. Class 140. [Also in Groups X and XXII] A slab, panel or the like comprises two or more layers of closed cells, adjacent cells in each layer being connected together by a web or the like, all the cells in each layer being arranged in a symmetrical pattern so that straight lands, provided by the webs and extending across the layer, are present between the cells, the density of the layers being graded progressively, so that the slab or the like has a density which is at a maximum in the neighbourhood of one or both faces and a minimum in the neighbourhood of the opposite face, or the median plane as the case may be. The variation in density may be produced by varying the size or shape of the cells, the thickness of the cell walls, or the material of the layers. As shown in Fig. 3, rolls A 1 , A 2 , A 3 , &c. carry foils F 1 , F 2 , F 3 , &c. of thermoplastic material, e.g. polyvinyl chloride. Alternate foils F 1 , F 3 , &c. are passed between dimpling rollers B 1 , B 3 , &c. which produce a pattern of dimples or cups 16 (Fig. 4) with straight lands L 1  and L 2  therebetween. The dimples may be hemispherical, as shown, or may be truncated cones or pyramids. The foils F 2 , F 6 , &c. are passed between sprays S 1 , which spray adhesive on to them. Each group of three foils, F 1 , F 2  and F 3 ; F 5 , F 6  and F 7 ; &c. then passes through a pressing roller assembly C 1  to laminate the foils together. The foils F 5  and F 7  have larger dimples than the foils F 1  and F 3 ; the dimples in foils F 9  and F 11  are still larger. The laminated assemblies D are passed between further pressing roller assemblies C 2  where they are interleaved with foils F 4 , F 8 , &c. provided with adhesive from the sprays S 2 . Skins E of greater thickness than the foils are also coated with adhesive and fed to the rolls. Thermoplastic foils can be welded instead of being stuck, the sprays S 1  and S 2  being replaced by radiant heaters. The skins may be rigidified by the provision of thin ribs. In a modification, Fig. 6, a cellular mass 10 with protective skins 12 has applied to one side a dimpled foil with the dimples open upwards. These are covered by a foil 20 which can be stripped off as shown. Concrete or plaster 22 can then be applied, the slab acting as a shutter or form which remains attached to the cast mass. Alternatively, the skin 12 can be omitted, or the dimpled foil 18 replaced by a ribbed skin of the kind described in Specification 836,009. Foils of metal or pressed fibre may be used in place of thermoplastic material. According to the Provisional Specification, slabs can be produced from slices of foamed plastics of different densities interleaved with adhesive strips, preferably of synthetic resin. Specification 842,937 also is referred to.
Patent GB-1312037-A (GB)
Title: Bag closure clips
IPC: B65D33/16
Filed: 1971-06-15
Abstract: 1312037 Bag closure clips F G PAXTON 15 June 1971 [5 April 1971] 27865/71 Heading E2B A bag neck closing clip 10 comprises a body of flat, rigid but springy sheet plastics material and having a bag neck confining aperture 16 there being a narrow access opening 15 which communicates with the aperture and divides the body on opposite sides thereof into a pair of jaws 17 and a tongue A integral with the body and projecting towards the jaws, the latter and the tongue being symmetrically disposed about a common axis. As shown, tongues B and C are provided.
Patent GB-702396-A (GB)
Title: Improvements relating to typewriters
IPC: B41J5/20
Filed: 1950-11-15
Abstract: 702,396. Typewriters. JARDINE, Ltd., J., and HARDY, F. S. Jan. 17, 1952 (Nov. 15, 1950], No. 27877/50. Class 100 (4) Case-shift mechanism.-In a type bar segment shift mechanism the two shift keys A (not shown) and B are rigidly connected together by a cross member E and the inner ends of the keys are connected to the ends of intermediate levers H (not shown) and J the other ends of which arc connected to arms M on the type bar segment N by a pin and slot connection O, P, the segment being held in its normal position by spring Q connected between the frame and the levers H (not shown), J. At the connection between the keys A, B pivoted at D and levers H, J pivoted at L pins F on the keys engage in slots G on the levers. When either key A, B is depressed levers H, J are rotated and the segment lowered. One or both keys A, B has a subsidiary lever R for locking the segment in the lower shift position. Lost motion, provided by making slots P wider than pins O is normally taken up by springs Q, but when the segment N is in the lower position it permits either shift key being depressed a short distance sufficient to enable the lever R to disengage from the abutment R'. The segment N is locked in its upper position by a pivoted locking arm S formed at its lower end with a lateral extension S' which is engaged by an adjustable screw U on an extension T of the shift key B. Thus when either shift key is depressed the arm S is immediately turned about its pivot to release the segment N, lost motion, provided by the slots G being wider than the pins F, permitting the keys A, B to swing the arm S to the release position before swinging the arms H, J to lower the segment.
Patent GB-661256-A (GB)
Title: Improvements in or relating to roller cages for roller bearings
IPC: F16C33/54
Filed: 1949-10-31
Abstract: 661,256. Bearings. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. Oct. 31, 1949 [Nov. 4, 1948], No. 27890/49. Class 12 (i). In a cage of the window-type for double-row, barrel-shaped roller bearings 3a, 3b, comprising a pair of independent annular body members 7a, 7b rotatable relative to the bearing races 1, 4, and each of the members 7a, 7b having closed pockets for a row of rollers, the side surfaces of the roller pocket that contact with the rolling surfaces of the roller in each pocket are formed geometrically by straight parallel generatrices following the contour of the roller, and are tangential to the rolling surface of the roller. The outer surface of each cage member may be substantially spherical as in Fig. 1 or the central portion 18 may be cylindrical and the end portion 19 conical, Fig. 6. The external diameter of the cage is equal to or less than the diameter of the edge opening 13 of the outer ring 1. Inwardly-directed flanges 8a, 8b are provided outside the rows of rollers, which bear on extensions of the inner races. Similar outwardly-directed flanges may be provided between the rows of rollers, which bear on the outer race of the bearing. Notches 15 may be provided in the flanges 8a, 8b for the insertion of a dismantling tool. At the middle of the outer edges of each cross-bar 9, local projections 12 are provided for retaining the rollers in the pockets. The central portion of the cage is carried on a free guide ring 6 which is centred on the inner race ring 4 between the rows of rollers.
Patent GB-1063124-A (GB)
Title: Improvements in or relating to methods for use in the production of cast iron
Inventor: HOYER JOSEF
IPC: C21B11/02
Filed: 1964-07-08
Abstract: Silicon is introduced into cast iron by adding briquettes of a silicon-containing compound, e.g. SiO2, and carbon to the cold charge for the cupola.  The briquettes may also contain MnO or FeO.
Patent GB-957609-A (GB)
Title: Process for the electrolytic recovery of chlorine from hydrochloric acid
IPC: C25B1/26
Filed: 1960-08-12
Abstract: Mercuric chloride is made by reacting aqueous hydrochloric acid with oxygen and metallic mercury at a temperature from 40 DEG  C. to the boiling point of the HCl solution in the presence of a catalyst.  The catalyst may be a salt of a metal exerting at least two valencies such as FeCl3 or CuCl2 used alone or in admixture with one another or with another metal compound such as PdCl2, CoCl2, Na2MoO4 or NaVO3. Other possible catalysts are TiCl4 or KReO4. MnSO4 may be added to FeCl3. The preparation of dissolved mercuric chloride comprises a step in the recovery of Cl2 from HCl by electrolysis (see Division C7).  U.S.A. Specification 2,468,766 is referred to.ALSO:Clorine is recovered from aqueous rydrocloric acid by reacting the acid with oxygen and metallic mercury at a temperature from 40 DEG C. upto boiling point of the HCl solution in the presence of a catalyst to form dissolved mercuric chloride and then electrolysing the HCl solution containing mercuric chloride at a current density below the current density at which evolution of hydrogen at the cathode occurs to form Cl2 and Hg.  The resulting Hg is returned to react with more HCl and O2 whereas the electrolyte resulting from the electrolysis, which has a low content of HgCl2 is returned to the process and may be used as an absorbent for HCl gas to form HCl solution.  Water formed during the oxidation of the Hg is withdrawn from the system, e.g. by evaporation at the oxidation stage or by evaporation using heat produced in the electrolytic cell.  The catalyst may be a salt of a metal exerting at least two valencies such as FeCl3 or CuCl2 used alone or in admixture with one another or with another metal compound such as PdCl2, CoCl2, Na2MoO4 or NaVO3.  Other possible catalysts are TiCl4 or KReO4. MnSO4 may be added to FeCl3.  For the electrolysis, a graphite anode and a cathode of graphite, mercury or a metal wettable by mercury such as Cu, Ni or "Morel" (Registered Trade Mark) metal may be used. The Hg may trickle down an inclined or vertical surface.  The cathode may comprise metal discs or a metallic band moved through the electrolyte and a mercury sump.  U.S.A. Specification 2,468,766 is referred to.
Patent GB-336376-A (GB)
Title: Improvements in and relating to root-harvesting machines
IPC: A01D17/04
Filed: 1929-09-17
Abstract: 336,376. Massart, J. Sept. 17. 1929. Crops, roof, digging and topping.-Potatoes or similar root crops are lifted by a sock 1 and swept along a grid 2 by forks 4 extending from a wheel 5 or similar device. The grid 2 has an upwardly extending portion 2<1> along which the potatoes are moved by projections 10 carried by an endless band conveyer. The portion 2<1> of the grid leads to a downwardly extending part 12 that passes below a transverse grid 11 on which the haulm, leaves, &c. of the roots are deposited and subsequently ejected laterally. The roots pass down the grid 12, the openings in which widen downwardly either continuously or intermittently so that the smaller roots fall through at the higher end of the grid.
Patent GB-603607-A (GB)
Title: Improvements relating to moulds for casting metals
Filed: 1945-10-25
Abstract: 603,607. Moulding processes; mould materials. MOND NICKEL CO., Ltd., and HUDSON, F. Oct. 25, 1945, No. 28215. [Class 83 (i)] Moulds.-In making a refractory mould for casting nickel-chromium and nickel-chromiumiron alloy, &c. by the " lost wax process, the wax pattern is first coated with a mixture consisting of a refractory zirconium compound and an organic silicate solution hydrolysable to precipitate a silica gel and which has a pH less than 1.4. 100 grams of zircon, which has been heated to 1300‹ C. for 30 mins. and ground to pass a 200-mesh sieve, is mixed with 35 to 55 c.c. of a binder comprising 25 parts by volume of an organic silicate, containing 40 per cent of silica, 2 of water, 72 of alcohol, and 1 of hydrochloric acid, sp. : : gr.: 1.16. This binder has a pH of 0.95. The mixture is sprayed on the pattern which is then allowed to rest 2 to 4 hours and invested. The mould is then dried at 45‹ C., and fired at 800‹ to 1000‹ C., and the metal poured. The Provisional Specification refers to Specification 580,058.
Patent GB-1194204-A (GB)
Title: Improvements relating to Internal Combustion Engine Charge Forming Apparatus.
IPC: F02M27/08
Filed: 1967-06-20
Abstract: 1,194,204. Spray carburetters; treating charge. ARMTEX PRODUCTS S.A. June 20, 1967 [June 21, 1966], No. 28400/67. Heading F1B. The air entering a carburetter is passed through apparatus producing an electrostatic discharge 2 Fig. 1 the carburetter comprises a light fuel nozzle 5 and a heavy fuel nozzle 5a, the carburetter body being lined with di-electric material 9. The air enters through ports 14, 23, in collector members 13, 22 of di-electric material supported on an insulating collar 10. Member 22 carries a glass member 30 with protrusions 31, the flow of air over which produces electrostatic charges which are fed through leads 32 to a cap 28 with pointed discharge members 29 directed towards the carburetter inlet. The air entering through ports 13 also produces charges on radially arranged glass partitions 19, which charges are fed to pointed discharge members 21. A deflector 15 is positioned within the member 13. The ports 14, 23, are covered by screens which may be formed of glass fibre material, the charges collecting on which may also be fed to the pointed members 21, 29. In Fig. 4 the charges produced by the air flow may be supplemented by charges produced on an engine driven belt 37, collected by a brush 39 and fed through switch 41 to the conducting leads of members 29.
Patent GB-301612-A (GB)
Title: Improvements connected with trailers for motor cars and the like
IPC: B60P3/34
Filed: 1927-10-26
Abstract: 301,612. Sykes, J. J. Oct. 26, 1927. Caravans; collapsable vehicles. - Trailers adapted for use as caravans comprise a body part mounted on an axle and springs, sockets and brackets secured to the ends of the body, vertical uprights adapted to support a covering, brackets on the sides supporting side extensions and members pivotally mounted to increase head room. As shown the side members 11 forming mattresses 12 are hinged to the body sides and supported by brackets 13. The members have pivoted end pieces 15 adapted to be connected by bars 17 which uprights 8 connected by a bar 9 are erected in sockets 6 and brackets 7. An awning 18 is mounted as shown.
Patent GB-209696-A (GB)
Title: Improvements in sewing machines
IPC: D05B13/00
Filed: 1922-12-02
Abstract: 209,696. Thompson, W. P., (Union Special Machine Co.). Dec. 2, 1922. Operating clutches.-In a filled-sack sewing-machine having a sewing head adjustable vertically a device is provided to enable the starting lever on the head to be actuated from a treadle on the base, such device automatically compensating for varying positions of the sewing-head. The machine is driven, by a motor mounted on the head, through a drive including a clutch operated by a lever 8 to which is connected a flexible member 19 which is wound and secured in a slot 21 of a wheel 20 having two slots 21, 22. Another cord 23 carrying a weight 24 is wound and secured in the slot 22. A lever 27 pivoted on the shaft of the wheel 20 has on one face teeth 33 adapted to engage teeth 34 on the wheel and on the other face a cam-tooth 35 normally spring-pressed into engagement with a recess in a collar 37. The lever may be depressed by pressure on a treadle 31 connected to an operating cord 28, the tooth 35 then riding out of the recess and engaging the teeth 33 with the teeth 34. The weight 24 compensates for slack or allows extension of the connection between the wheel 20 and the sewing-head.