baber/WOPTO huggingface dataset:
Patent GB-1123062-A (GB)
Title: A method of and apparatus for manufacturing latex foam rubber articles
Filed: 1965-07-30
Abstract: 1,123,062. Moulding foam rubber. PIRELLI S.p.A. 30 July, 1965 [31 July, 1964], No. 32585/65. Heading B5A. A method of moulding articles of latex foam, e.g. pillows, mattresses &c. having recesses, comprises the feeding of latex foam into a closed mould in the walls of which heated fluid at various temperatures is circulated in order to heat treat the foam. The fluid temperature is lowest during the feeding in of the foam, and when the mould is filled a higher temperature fluid is circulated to cause gelling, and finally the foam is cured by fluid at a still higher temperature. In Fig. 3, the mould comprises a fixed lower half 3 on a base 1, and a relatively movable upper half 4 with downwardly extending projections, each half having cavities 27 in their walls to which heated fluid, e.g. water, is fed by ducts 29, 31 and removed by ducts 30, 32. The upper half is carried by a support 5 which is raised to open the mould by a drive mechanism including driven sprockets 9 at the opposed ends of the base which drive levers 7 pivoted at 8 to the sprockets and to pins extending from opposed ends of the support. Rollers 10 on the pins and rollers 12 at each end of the support engage guide surfaces 15, 16 provided by plates fixed to the opposed ends of the base, so that as the support is raised by the links 7 it is turned to give access to the underside of the mould half, thereby to allow the moulded article to be removed therefrom. After removal of the article the inner surfaces of the half moulds are sprayed with an antiadhesive. During closure of the mould, its two halves are cooled by fluid supplied at about room temperature. The latex foam is supplied to the mould cavity through a hole in the top half, and air is expelled through a separate hole therein. In the machine of Fig. 11 (not shown), the upper half 104 of the mould is lifted upwardly and then moved downwardly and clear of the lower half by a mechanism which includes drive chains 118 at the opposed ends of the base 101 to which the ends 117 of a shaft 106 connected to the upper mould half are attached. The shaft ends engage guides 115. Additional guiding of the upper half is provided by arms 112 extending upwardly from the opposed ends of the mould half which carry rollers 113 sliding in guides 116 provided on the base. The drive to the chains is via a clutch operated through a piston and cylinder device and a pivoted linkage, and microswitches adjacent the chains at appropriate locations and which are engaged by the ends 117 of the shaft 106 control the chain drive and hence movement of the upper half of the mould.
Patent GB-818570-A (GB)
Title: Improvements relating to a.c. electrical generating sets
Inventor: HALLETT LOUIS BERTRAM HENRY
IPC: H02J9/08
Filed: 1956-10-25
Abstract: 818,570. Standby supply systems. AUSTINLITE Ltd. Oct. 8, 1957 [Oct. 25, 1956], No. 32600/56. Class 38 (4). In a " no break " generating set of the type comprising an A.C. motor 6, flywheel 5, A.C. generator 3 and. a standby engine 1 coupled by a clutch 2, the motor is of the synchronous type to give a generated frequency equal to the supply and a further clutch 4 is provided whereby the motor may be isolated from the generator to facilitate re-synchronization of the motor on resumption of the supply. A controller for the set is also described which may be combined with an automatic starting panel for the motor, and which may automatically perform the switching operations to start, connect, and stop, the engine, also to resynchronize the motor. Specification 779,416 is referred to.
Patent GB-450310-A (GB)
Title: Improvements in the piston construction of internal combustion engines
IPC: F02F3/22
Filed: 1934-11-13
Abstract: 450,310. Pistons. NATIONAL GAS & OIL ENGINE CO., Ltd., and BALMFORD, A. B., Ashton-under-Lyne, and BURN, W. S., Laurel Lodge, Hart Station, Hartlepool. Nov. 13, 1934, No. 32656. [Class 122 (i)] A gudgeon-carrying member 3 is secured inside a piston shell in contact with shoulders 4, 5 between which a space 18 is provided to and from which oil is conducted via the gudgeon pin. The parts may be secured by a central bolt 10 whereby the shell can be removed without disturbing the gudgeon pin. A heat resisting steel cover plate 14 may be provided for the bolt head.
Patent GB-1195708-A (GB)
Title: Coloured Polycarbonates and Process for Preparing the Same
IPC: C08J3/20
Filed: 1967-07-17
Abstract: 1,195,708. Colouring polycarbonate resins. MOBAY CHEMICAL CO. 17 July, 1967 [19 July, 1966], No. 32727/67. Heading C3R. Coloured polycarbonates are made by feeding a pigment or dye and pellets of a polycarbonate resin into a screw extruder which has a feed zone temperature of 260-350‹ C., an extrusion zone temperature of 160-250‹ C., a temperature gradient of 80-120‹ C., and a screw of a uniform flight depth whereby a low shear is exerted on the polycarbonate resin and a high shear on the pigment or dye. The extruder may have a length to diameter ratio of from 10 : 1 to 30: 1. Prior to being fed to the extruder, the pigment or dye and the polycarbonate resin may be preblended (e.g. in an extruder, ribbon mixer, tumbling barrel mixer, double cone mixer, V-cone mixer or mushroom mixer). The preblending may be such as to produce a homogeneous mixture or a pigment or dye coated with the polycarbonate resin. Also the preblending may produce a master batch containing a large quantity of pigment or dye which is then fed to the extruder with additional polycarbonate resin. Many pigments or dyes are mentioned but those used in the examples were (4), (10) and (11) titanium dioxide; (5) a mixture of titanium dioxide, heliogen blue, diluted black and solvent violet; (6) scarlet red; (7) a mixture of croton fast green toner, titanium dioxide and amaplast yellow; (8) and (9) a mixture of thermas blue-black, marine blue, titanium dioxide and cadmium red; (12) a mixture of ultramarine violet and ultramarine blue. The polycarbonates used were those derived by reacting bisphenol-A, phosgene and p -tert. -butylphenol.
Patent GB-791564-A (GB)
Title: Mixing and refining machine
IPC: A23G1/12
Filed: 1955-11-16
Abstract: 791,564. Mixing-machines. PONISCH. M. Nov. 16 1955 [Jan. 15, 1955; May 17, 1955], No. 32763/55. Class 86 A mixing-machine, particularly for chocolate masses having a low fat content, comprises a heatable or coolable circular container 1, a stripper 5 adapted to sweep over the inner wall of the container and a curved mixing arm 2, mounted on a central rotary shaft 9, and carrying a centrifugal plate 4 which projects at an angle partly below and partly above the surface 11 of the mass being mixed. The inclination of the plate 4 is adjusted by a lever 8. In a modification, two mixing arms 2, 16 carry cutting blades 15, 17, and separation plates 13 are provided on the centrifugal plate 4.
Patent GB-756302-A (GB)
Title: Improvements in or relating to harvesting machines
Inventor: WARD PETER THOMAS
IPC: A01D57/04
Filed: 1954-11-12
Abstract: 756,302. Reaping machines. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. Nov. 12, 1954, No. 32825/54. Class 6 (3). A reaping machine, of the type having a reel 3 ahead of the cutter-bar 2 on a framework 5 pivoted to the main frame, is provided with a transverse lifting shaft 6 coupled by a cabledrum 14 and cable 15 to the framework whereby rotation of the shaft lifts or lowers the framework, and includes a controllable friction clutch associated with a continuously-rotating shaft 4 of the machine for imparting a power-drive to the lifting shaft or for applying a braking resistance to lowering movement of the reel under gravity and a ratchet device for holding the transverse shaft in an adjusted position. The friction-clutch comprises a cable 22, 23 wound loosely around a pulley 12 on the reelaxle 4 which is driven continuously by a chain 8 from a sprocket 10. The cable 22 is fixed at one end to a pulley 13 on the shaft 6 which is journalled freely between the runs of the cropconveyer 1. A spring-loaded lever 25 with an eyelet 24 embracing the cable is pivoted on the framework 5 and carries a pawl which normally engages -a ratchet 29 fixed to the shaft 6, but which can be disengaged by a light pull on the free end 23 of the cable, this end being accessible to the driver of the towing tractor. A heavy pull on the cable 23 tightens the cable around the pulley 12 and thereby couples the shafts 4 and 6 through the cable-part 22, thus effecting power-lifting of the reel.
Patent GB-501726-A (GB)
Title: Improvements in and relating to electron multipliers
IPC: H01J43/18
Filed: 1937-10-01
Abstract: 501,726. Electron multipliers. STANDARD TELEPHONES & CABLES, Ltd. Oct. 1, 1937, No. 32867 /38. Convention date, Oct. 24, 1936. Divided out of 502,976. [Class 39 (i)] A concentrating electron lens for an electron multiplier consists of two frusta of cones, or like tapering surfaces, with their bases towards each other. The Figure shows an arrangement in which the emissive surfaces 1, 5, 8, &c. are carried on conducting rods 12 connected by insulating rods which also support the conical surfaces 3, 4, 6, 7, &c. constituting the electron lenses. Adjacent conical surfaces are carried on the same rod 12 as the emissive surface between them and may be united along a generator, as shown. Pyramids or surfaces with concave flanks. may be substituted for cones. In a modification the emissive surfaces are mounted on a helical strip of high-resistance material which provides the necessary potential gradient.
Patent GB-1008459-A (GB)
Title: Hollow box-shaped toy building elements
IPC: A63H33/08
Filed: 1964-08-12
Abstract: 1,008,459. Toy building elements. H. HASEL. Aug. 12, 1964 [March 25, 1963], No. 32881/64. Addition to 996,811. Heading A6S. A toy building element as in the parent Specification has an internal rib or ribs which are saw toothed in section. The saw teeth may be of staggered height as in Fig. 5, or there may be only one tooth per stud as in Fig. 8.
Patent GB-309478-A (GB)
Title: Improvements in rock drills
IPC: B25D17/26
Filed: 1928-11-12
Abstract: 309,478. Ingersoll-Rand Co., (Assignees of Smith, W. A.). April 11, 1926, [Convention date]. Percussive drills.-A percussive rock drill comprises a bush F receiving an extension R from the piston C and having an extension G receiving a chuck H which, with the tool J, is caused to rotate therein by ribs U in the chuck engaging flutes T on the extension R of the piston which is fitted with a nut 0 cooperating with a rifle bar L carrying spring-pressed pawls P engaging a ratchet Q. Pressure fluid is supplied to the valve chamber y through a passage k from a throttle valve f. Water is conveyed to the tool through a tube 12, its pressure being augmented by the access of pressure fluid to the interior of the chuck through the flutes T and a passage 13 from the valve f.
Patent GB-326789-A (GB)
Title: Process for the manufacture of therapeutical media
IPC: C07F9/74
Filed: 1928-11-13
Abstract: 326,789. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Nov. 13, 1928. Samples furnished. Organo-arsenic compounds are prepared by treating an aromatic arsinic acid containing amino and/or hydroxy groups with aminoalkyl or alkylaminoalkyl halides, or with such substitution products thereof as bromethylphthalimide with subsequent splitting off of phthalic acid. Alternatively, the said arsinic acids may be treated with ethylene oxide or a halogenated alcohol and the products converted first into the halides and then into the amino or alkylamino compounds. The resulting arsinic acids may be reduced to the arseno stage, either alone or with the addition of a different arsinic acid to produce unsymmetrical compounds'. The introduced residues may be straight or branched, and the final products may contain nuclear-substituted amino or hydroxy groups in addition. According to the example, arsanilic acid is treated with diethylaminoethyl chloride and the N-diethylaminoethyl-p-aminophenylarsinic acid produced then reduced to the arseno compound with hydrosulphite.
Patent GB-190141-A (GB)
Title: Improvements in or relating to bobbin carriers for braiding machines
IPC: D04C3/14
Filed: 1922-12-05
Abstract: 190,141. Demuth, C. Dec. 6, 1921, [Convention date]. Braiding-machines.-The bobbin carriers of a machine in which there are upper and lower serpentine guide paths are formed each from a tube 1 which is compressed at 2 and is provided with a bent strip 5 supporting the bobbin and held in place by the shoulders of the part 2. Vertical triangular prisms 3, a disc 6 and a flat shoe 4 are soldered or welded on at the places shown. The parts 2 are guided between the upturned rims 13 of centre-discs 11 and curved guides 15 of square section mounted on the upper plate 9. The shoes 4 work between similar discs 12 and guides 16. The drivers 17, 18 are mounted in pairs on hubs 19 and the driving notches are recessed as shown at 20, 21. The driving gears 22 are secured by screws 23 to the hubs 19 and rest on thrust members 25. The tension weights 26 are supported on a wire which passes through the part 2.
Patent GB-684564-A (GB)
Title: Improvements in cooling units
IPC: H01J19/36
Filed: 1949-12-29
Abstract: 684,564. Cooling discharge apparatus. RADIO CORPORATION OF AMERICA. Dec. 29, 1949 [Dec. 30, 1948], No. 33239/49. Class 39(i) The spaced fins of a cooling unit each comprise a body member 13, with a mounting flange 15 and a spacing flange 16 and a plurality of ribs 17 struck up by slitting the strip metal and pressing out alternate rib portions or by welding rib elements across slots formed in the fins. The fins which may be of copper are assembled together round a piece of copper tubing 12 forming a core and brazed thereto. The ribs in each fin may be pressed out unequal distances so as to be in staggered relationship and the fins may be displaced axially. The Specification as open to inspection under Sect. 91, also comprises a modification in which the fins are of annular disc-shape with slots and ribs of different lengths and with differing distances between ribs and slots, the discs being assembled axially on a discharge device. This subject-matter does not appear in the Specification as accepted.
Patent GB-618656-A (GB)
Title: Improved manufacture of optical glass
IPC: C03C3/089
Filed: 1946-11-08
Abstract: 618,656. Optical glass. CORNING GLASS WORKS. Nov. 8, 1946, No. 33276. Convention date, May 27. Drawings to Specification. [Class 56] An optical glass having an nD of at least 1.635 and a dispersive index greater than 431-229 nD contains SiO 2  5-40 per cent weight (especially 10-20 per cent); B 2 O 3  5-40 (10-20); BeO 2-15 (3-8); CaO and/or SrO 10-60 and may contain ZrO 2  0-11 (3-8). The total BeO+CaO+SrO is between 55-80 per cent (especially 57-77). Up to 11 per cent of TiO 2 , Hf02 and ThO 2  may be used in place of the ZrO 2 . Other substances present may be up to 60 per cent BaO, ZnO and CdO ; 30 per cent MgO ; 20 per cent PbO, Sb 2 O 3  and Bi 2 O 3 . Alumina and the alkali metal oxides except lithia are generally omitted but may be used for particular reasons. Specification 613,718 is referred to.
Patent GB-170507-A (GB)
Title: Improvements in loose leaf ledgers and the like
IPC: B42F13/04
Filed: 1920-11-25
Abstract: 170,507. Knight & Co., Ltd., C., and King, J. S. Nov. 25, 1920. Flexible-band files; covers: - In loose-leaf binders of the type having straps united by a cross-bar, the straps being secured to one cover and adapted to be drawn tight within the other cover, an actuating-strap H attached to the crossbar F passes around a bar I fixed in the cover and can be adjusted in any position. After passing around the bar I, the strap is threaded beneath another cross-bar J covered with leather &c. K having a flap K<1>, the second cross-bar being parallel with and above the bar I. The strap is then bent back upon itself and wedged by tucking its free end between the two bars, or it may oe tucked beneath the flap K<1>, or into a slit in the cover. A tongue L is provided on the free end of the strap to effect its ready withdrawal.
Patent GB-1263100-A (GB)
Title: Shading dyed acrylonitrile polymers
IPC: D06P3/76
Filed: 1969-07-02
Abstract: 1,263,100. Shading dyed acrylonitrile polymers. BADISCHE ANILIN-& SODA-FABRIK A.G. 2 July, 1969 [3 July, 1968], No. 33326/69. Heading D1B. The amount of dye necessary for shade matching a dyed acrylonitrile polymer using cationic dyes is given by the equation in which T N  is the shading temperature, TF is the dyeing temperature and a is a fibrespecific constant indicating the temperature variation which halves or doubles tgα(100‹C), p is the relative amount of dye necessary for N x 100, shading and given by p= - N is the 10 replenishing addition of dye expressed as an amount of thermoregulator having the same liquor exhaustion rate, b is the amount of thermoregulator which corresponds to the amount of dye of the dyeing recipe in terms of the liquor exhaustion rate, tF is the liquor exhaustion time for dyeing at the dyeing temperature and tN is the liquor exhaustion time for the additional feed at the shading temperature TN, alternatively the value of p may be fixed by the additional use of a thermoregulator so that TN is equal to TF the additional amount of thermoregulator being given by The thermoregulators are colourless cationic compounds some of which are retarders.
Patent GB-938537-A (GB)
Title: Coathanger
IPC: A47G25/30
Filed: 1962-08-31
Abstract: 938,537. Coat hangers. J. NIEHENKE, [trading as SINRAM & WENDT.]. Aug. 31, 1962 [Sept. 8, 1961], No. 33434/62. Class 52 (5). A coat hanger with a cross-bar having a frictional covering 2 consisting of an adhesively acting synthetic material cover whose diameter in the unstressed condition is smaller than the diameter of the cross-bar.
Patent GB-488649-A (GB)
Title: Clothes and dish washing appliance
IPC: D06F17/00
Filed: 1936-12-07
Abstract: 488,649. Clothes and dish washing- appliances. BURSLEM, R. Dec. 7, 1936, No. 33468. [Class 138 (i)] [Also in Group VIII] An appliance of the kind which is immersed in a liquid and supplied with air under pressure which issues as jets, comprises an elongated, tapering chamber C, Fig. 1, from which project lateral conduits D formed with apertures 4. The conduits are fitted with sleeves E connected to a rock-shaft F by which they may be simultaneously moved to bring sets of holes 6, 7 therein of different sizes over the holes in the conduits to vary the size of the jets. The holes in the sleeves and conduits may be countersunk. The parts are mounted on a hollow base fitted with apertures B on the top and further apertures a<2>, Fig. 2, which are covered with gauze, the base acting as a collector for refuse.
Patent GB-986511-A (GB)
Title: Improvements relating to electrolytic capacitors
IPC: H01G9/04
Filed: 1963-08-23
Abstract: 986,511. Capacitors. ALUMINIUM-WALZWERKE SINGEN G.m.b.H. Aug. 23, 1963 [Aug. 24, 1962], No. 33500/63. Heading HIM. A solid electrolytic capacitor is produced by forming an oxide dielectric layer on a valve metal anode, coating with an anhydrous metal salt decomposible by pyrolysis to a semi-conductive superoxide layer, pyrolysing the layer of salt, and depositing a second electrode thereon. The anode may be of aluminium, tantalum or niobium anodically formed in boric acid solution, and may be coated with anhydroxy manganese nitrate from solution in ethyl alcohol, isopropyl alcohol, or acetone, or with hydrated manganese nitrate subsequently dehydrated by heating in vacuo over phosphoric pentoxide. The second electrode may be graphite. Lead or nickel salts may be used in formation of the semi-conductor layer.
Patent GB-644621-A (GB)
Title: Improvements relating to short path fractionating centrifugal stills
IPC: B01D3/12
Filed: 1947-12-19
Abstract: <PICT:0644621/III/1> A short-path fractionating still comprising several nested evaporating-bowls concentrically-arranged and mounted for rotation about a central, vertical distillate-receiver, inclined annular condensing surfaces arranged concentrically above the bowls with the lower edge of each surface projecting slightly over the next inner bowl, annular baffles mounted above the rims of the bowls, and an annular trough for distillation-residue associated with the outermost bowl.  The distilland is thrown outwards by centrifugal action, and is guided from bowl to bowl by the baffles, while the liquid evaporated from any bowl is condensed on its associated condensing surface, and the condensate drips from the edge of that surface into the next inner bowl or, in the case of the innermost condensing surface, into the central receiver.  The still shown has four bowls 2, 3, 4, 5, associated with four condensing surfaces 7, 8, 9, 10 which have channels 61 for the circulation of cooling liquid. Two alternative arrangements for rotating the bowls are shown.  The bowls shown in the left-hand half-section are separate and are arranged for rotation at different speeds by means of individual gearwheels and shaft 36; while the bowls in the right-hand half-section are connected together and to a hollow shaft 28 for rotation at the same speed. In the first arrangement each bowl is provided with an individual electric heater 37; but in the second arrangement there is a single electric heater 30.  The distilland is introduced into the still through pipe 14 and flows down conical surface 16 into bowl 2.  Distilland thrown out of bowl 2 by centrifugal action is deflected by baffle 17 into bowl 3; while the vapours evolved in bowl 2 are condensed on surface 7, and the condensate drips into receiver 11.  The function of the other bowls and condensing surfaces is similar.  The residual-distilland thrown out of bowl 5 is deflected by baffle 20 into trough 21 from which a proportion of it may be withdrawn through pipe 22, the remainder being recirculated into bowl 3 through pipe 23 and over conical surface 26.  The distillate is withdrawn from the still through pipe 12, but by controlling valve 13 it may be caused to accumulate in the receiver and eventually spill over into bowl 2.  Any desired degree of reflux may thus be obtained.
Patent GB-780187-A (GB)
Title: Improvements in and relating to the construction of bay windows
IPC: E06B1/06
Filed: 1953-12-04
Abstract: 780,187. Bay windows. CROWE, W. A. P.. and DINAN &. SONS. Ltd. Dec.4, 1953 [March 3, 1953], No. 33738/53. Class 20(3) A bay window construction comprises convexly curved wooden corner posts 1, fitted between wooden frames 5 whose stiles 6, 7, to be secured to the posts 1 are formed with concave curved surfaces 8 of somewhat smaller radius of curvature than the smallest radius of curvature of the cross section of the posts. As shown each post 1 is of approximately elliptical cross section, with the major axis 4 coinciding with the bisector of the angle between adjacent frames. Screws 9. which secure the frames to the posts are passed through counterbored holes 10 in the frames, the  holes being subsequently filled with putty, the screws 9 being midway between the surfaces of the frames which contact the post and being substantially normal to the curvature of the post at the .point of entry. Each post may be secured to aframe before leaving the factory. In a modification the posts are of circular cross section.