baber/WOPTO huggingface dataset:
Patent GB-1219970-A (GB)
Title: Improvements in or relating to printing machines
Inventor: ZUBER GERHARD
IPC: F16C25/06
Filed: 1968-11-14
Abstract: 1,219,970. Printing machines. PLAMAG PLAUENER DRUCKMASCHINENWERK VEB. 14 Nov., 1968, No. 54013/68. Heading B6C. [Also in in Division F2] Cylinders of a printing machine are journalled in rolling bearings which are mounted within a bush 4 which comprises two sleeves 5, 6 shrunk on to one another, there being provided in the inner wall of the outer sleeve chambers 10 and 11 which may be charged with fluid under pressure to press the bush against the bore in the printing machine. The chambers are disposed at 120 degrees to each other and also at 120 degrees to the resultant of the forces acting on the cylinder. The pressure in the chamber is periodically briefly relieved and recharged so as to take up any play caused by vibration of the cylinders.
Patent GB-1417136-A (GB)
Title: Sheet conveyor mechanism
IPC: B41F21/08
Filed: 1972-11-23
Abstract: 1417136 Sheet conveyer ROLAND OFFSETMACHINENFABRIK FABER & SCHLEICHER AG 23 Nov 1972 [23 Nov 1971] 54214/72 Heading B8R In a sheet delivery apparatus the gripper carriages 13 each comprise a series of laterally spaced gripper pads 22 co-operating with a series of gripper arms 23, the heights of the pads varying from a minimum in the middle of the carriage to a maximum at both ends. This compensates for the tendency of the shaft 21 supporting the pads, to bow when the carriage is rapidly moved during delivery. The carriages are supported between endless chains running between a printing press and a delivery board.
Patent GB-1244856-A (GB)
Title: An improved dog clutch
Inventor: CORTONA ALLESSANDRO
IPC: F16D11/06
Filed: 1968-11-15
Abstract: 1,244,856. Positive clutches. ING. C. OLIVETTI & C., S.p.A. 15 Nov., 1968 [19 Dec., 1967], No. 54396/68. Heading F2C. A dog clutch suitable for office machines comprises a driven member 10 which supports a substantially semi-circular annular slider 16 guided between portions 22, 28, 30 on the member 10. The slider has an extension 36 which is located between two projections 24, 26 also provided on the driven member 10. A dog 42 on the slider may be engaged between adjacent dogs 19 on a toothed ring 20 mounted for rotation on a shaft 14 to which the driven member 10 is secured. A spring 18 urges the slider to the left in Fig. 2 but a pin 50, in the position shown, checks leftward movement by engagement with a lug 38 on the slider extension 36. For preventing rotation of the shaft 14 when the pin 50 engages the lug 38, a pawl 56 engages a tooth 54 on a disc 52 keyed to the shaft 14. When the clutch is to be engaged, the pin 50 having been disengaged from the lug 38, the spring 18, aided by centrifugal force, causes the dog 42 on the slider 16 to move between two adjacent dogs 19. For disengagement, the lug 38 is arrested by downward movement of the pin 50 and the slider 16 is moved to the right.
Patent GB-1393680-A (GB)
Title: Porous plastics materials
IPC: C08J5/18
Filed: 1971-11-23
Abstract: 1393680 Extruding porous pipe UNITED KINGDOM ATOMIC ENERGY AUTHORITY 8 Nov 1972 [23 Nov 1971] 54432/71 Heading B5A [Also in Divisions C3 and B1] Extruded articles, e.g. tubes, consist of porous rigid ployvinylchloride, a copolymer of at least 90 molar per cent of vinyl chloride with a copolymerizable ethylenically unsaturated monomer or a blend of polyvinyl chloride with a vinyl chloride copolymer which blend contains at least 90 molar per cent of vinyl chloride units, the polymer being unplasticized, having an apparent density of 0À5-1À3 g./cc., an average pore diameter of 5-500 Á and at least 50% of the pores being interconnected. The porous polymers are made by extruding a mixture of the powdered polymer with 0À5 -3À0% by wt. of a chemical blowing agent, less than 10% by wt. of a stabilizer for the polymer and not more than 12% by wt. of a filler. The tube may be axially drawn when hot so as to reduce its diameter or may be drawn hot over a mechanical former so as to increase its porosity by radial expansion of the tube.
Patent GB-1432220-A (GB)
Title: Apparatus for separating fluids
IPC: B01D63/08
Filed: 1973-11-23
Abstract: 1432220 Diffusion apparatus RHONEPOULENC SA 23 Nov 1973 [24 Nov 1972] 54599/73 Heading B1L The gas mixture for separation by diffusion of one of its constitutents is passed under pressure via duct 6 and auxiliary baffle 19 towards the cylindrical wall of jacket 2. The gas then passes through a sinuous path through baffles 9 and along membrane faces on the porous supports which constitute the elementary cells 10. As shown by the arrows the treated gas is discharged via duct 5 while the permeate is obtained, generally under reduced pressure in tube 23 having passed through the membrane 13 (Fig. 5) porous support 12 and orifice 15. The baffles, cells and gaslets 11 are detachably stacked on rod conduit 7. The porous support, which need not be unitary, can be made of stainless steel, bronze polyethylene polyvinyl chloride or paper coated with phenolic resin and can be of decreasing thickness towards the periphery. The membrane can be coated on the support or may be a separate layer. The different means for maintaining the stack in fluid tight relationship with the conduit is described. Fig. 13 (not shown) illustrates the baffles being held in the stack at their edges rather than centrally.
Patent GB-1334083-A (GB)
Title: Rolling mills
IPC: B21B37/62
Filed: 1970-11-18
Abstract: 1334083 Rolling mills MITSUBISHI JUKOGYO KK 18 Nov 1970 [18 Nov 1969] 54839/70 Heading B3M A rolling mill employs tension rods which extend between the top of the stand and an hydraulic screwdown at the base, the rods serving to monitor changes in the roll gap of the stand and to produce output signals for maintaining the gap constant. The rods act in tension and are coupled to an hydraulic plunger 105, which adjusts the lower work roll 53<SP>1</SP>, and to upper rods 113. Each rod 113 (Fig. 6) is urged upwardly by fluid pressure acting on a piston 56 attached to the rod, the piston and associated cylinder 123 acting as a load limiter for preventing excessive tension from acting on the rod 111. The position of the rod 111 is adjustable axially by a sleeve 120 using a worm and worm-wheel assembly. The output signals from the rods are processed, together with signals from load cells 117 (Fig. 5), and with an input signal corresponding to a desired roll gap, in a computer. An output signal from the computer controls the fluid supply to a screwdown 4 to keep the gap constant. The tension rods can take different forms (Figs. 2 and 3, not shown), and a mechanical screwdown 116 is used for coarse adjustment of the roll-gap.
Patent GB-1217488-A (GB)
Title: Treatment of ligno-cellulosic materials to produce a stable colour
Inventor: DOMBAY STEPHEN
IPC: B27K5/02
Filed: 1966-12-08
Abstract: 1,217,488. Treating lignocellulosic materials. FURNITURE INDUSTRY RESEARCH ASSOCIATION. 8 Dec., 1967 [8 Dec., 1966], No. 55026/66. Heading DIP. Wood and other ligno-cellulosic materials, e.g. jute, ramie, sisal and flax, are given a stable colour resistant to changes due to photochemical action, by treating them with a persulphate to oxidise natural substances present in the materials so that there are produced oxidation products which are substantially stable to light. The persulphate which may be an ammonium or alkali metal persulphate may be used in admixture with one or more other oxidizing agents, e.g. a hypochlorite, and may be applied to the material treated in the form of a solution by immersion or swabbing or may be produced in situ in the material. The treating solution may contain an oxidation catalyst, e.g. one containing permanganate or cupric ions, and a surface active agent and may be a solution in water or mixture thereof with an alcohol having up to 6 carbon atoms in the molecule. Alternatively the oxidation catalyst may be applied as a separate solution. The material may be treated in a second stage with another oxidising agent, e.g. a hypochlorite or hydrogen, peroxide which may contain ammonium acetate, the treatment with hypochlorite optionally being followed by treatment with hydrogen peroxide, drying preferably being effected between the treatments. A pH adjusting agent, e.g. sodium carbonate, ammonia or hydrochloric acid may be applied to the material with the oxidising agents or as a separate solution, the required pH optionally being maintained by means of a pH buffer, e.g. a phosphate or acetate buffer. Specified woods which may be treated are African mahogany, African walnut, European walnut, European beech, afrormosia, teak, gaboon, sycamore, Douglas fir, oak, sapele, muninga, utile, iroko, tola, birch, ash or maple. Differently coloured samples of the same species of wood may be brought into greater colour uniformity by the treatment. The wood may be used in the manufacture of furniture.
Patent GB-1128048-A (GB)
Title: Cyclic trisiloxanes and polymers thereof
Inventor: WU TSE CHENG
IPC: C07F7/21
Filed: 1965-12-30
Abstract: 1,128,048. Cyclic trisiloxanes and polymers thereof. GENERAL ELECTRIC CO. 30 Dec., 1965, No. 55279/65. Headings C3S and C3T. Cyclic trisiloxanes of the formula wherein each R and each R<SP>111</SP> is a monovalent aromatic hydrocarbon radical, may be obtained by reacting a diorganosiloxane of the formula with a diorgano-silane diol of the formula in the presence of a solvent and an acid acceptor. The above cyclic trisiloxane may then be subjected to controlled hydrolysis in an aqueous medium with pH maintained at approximately 7 by means of a buffer or salt such as sodium bicarbonate, to form the corresponding hydroxyl-substituted trimer, and the latter may be dehydrated to form a polymer containing at least 5 successive units of the formula The diorganosiloxane starting material may be obtained by the partial hydrolysis of an organotrichloro silane of the formula RSiCl 3 , preferably in the presence of a solvent, e.g. a hydrocarbon, and catalytic amounts of an acid acceptor, e.g. a tertiary amine.
Patent GB-1220223-A (GB)
Title: A liquid cooled rocket combustion chamber with thrust nozzle
IPC: F02K9/64
Filed: 1967-12-05
Abstract: 1,220,223. Rocket propulsion - cooling nozzles. MESSERSCHMITT BOLKOW - BLOHM G.m.b.H. Dec.5, 1967 [Jan.16, 1967], No.55363/67. Heading F1J. The constructional assembly of a rocket combustion chamber and thrust nozzle is provided with a number of mutually independent liquid cooling circuits. As shown, the assembly consists of a component 1 which comprises the combustion chamber 2 and a convergent part 3 of the thrust nozzle, and a component 4 which comprises the divergent part 5 of the thrust nozzle. The components 1, 4 are detachably inter-connected by means of flanges 6 on their adjacent ends. A number of conduits 7 extend along the walls of the components 1, 4, and liquid oxygen flows through them in the direction of the arrow A. An insert 8 is provided in the nozzle throat, the external contour of which is part-conical and tapering in the downstream direction. The insert 8 consists mainly of a downstream annular feed circuit 9, a double wall structure 11 forming a cooling conduit 10, and an upstream annular conduit 12. The conduits 9, 12 are connected by a wall 13 which accommodates two gaskets 14, one on each side of the joint 15 between the two flanges 6. Feed conduits 16 connected to one common annular feed conduit 17 lead tangentially into the annular feed conduit 9. The upstream conduit 12 leads to a free end bent in the downstream direction and forming, with the wall 11 of the conduit 10, an annular slot 19 for the outlet of cooling liquid for the nozzle throat in the form of a fog. This cooling fog can serve as the sole cooling means, or it may be provided merely as an adjunct to a regenerative cooling system. Owing to the intrinsic spiral movement of the flow, the cooling liquid issuing from the slot 19 will also form a protective film on the inner side of the double wall 11, where it will be stabilized by centrifugal action for a longer time than would be the case with an axial throughflow. The insert 8 is asymmetrical, the portion extending upstream from its narrowest crosssection being longer than that extending downstream, thus allowing for the higher temperature prevailing in front of the narrowest cross-section. The insert 8 may consist of a material other than that of the components 1, 4 and can consist, for example, of a material of high thermal and chemical resistance or be provided with a coating of such material. Special coolants of high evaporation heat, e.g. water, alcohol or ammonia, can be used in the separate cooling circuit of the insert 8.
Patent GB-1204339-A (GB)
Title: Apparatus for melt spinning composite filaments
Inventor: KERN HELMUT
IPC: D01D1/06
Filed: 1967-12-06
Abstract: 1,204,339. Apparatus for melt-spinning composite filaments. CHEMIEFASERWERK SCHWARZA "WILHELM PIECK" VEB. 6 Dec., 1967, No. 55431/67. Heading B5B. An apparatus for melt spinning composite filaments, i.e. filaments which are formed by simultaneously extruding through the or each orifice of a spinneret two or more molten polymers differing from one another in chemical composition and/or in physical properties in such a manner that the filaments formed consist of two or more components bonded together along their length in either side-by-side or sheath-core arrangement, comprises two or more separate combined polymer melting and pump feed units, for example, one for one polymer to be formed into a component of a two-component composite filament and the other unit for the other component polymer. The units are adapted to be heated independently of one another and the two polymers may thus be heated to different temperatures. The feed pumps of the units are driven independently of one another and may be driven at different speeds. The melts from the two units are fed through separate heated feed pipes simultaneously to one or more exchangeable spinning heads each provided with its own pair of spinning pumps, one for each melt. As shown in Figs. 1 to 3 of the drawings, two different polymers in granular form are fed respectively to melting units 5 and 6, respectively. The polymer melts collected in sumps 7 and 8, respectively, are then fed to the two separate spinning head and spinning pump assemblies 19 and 20 via the melt supply pipes 15 and 16 by means of the individually driven gear feed pumps 13 and 14. The melts pass through the inlet ducts 21 and 22, respectively, to the independently driven spinning pumps 25 and 26 which meter the melts to the spinneret assembly 38 through the ducts 27, 36 and 28, 37, respectively. The pump units have separate heating jackets 29 and 30 and the melt supply pipes have separate heating jackets 17 and 18, an organic liquid heating medium being circulated through these jackets and through the heating jacket 39 of the spinning head 35.
Patent GB-1157080-A (GB)
Title: Effervescent Compounds
IPC: C01B15/00
Filed: 1966-12-12
Abstract: 1,157,080. Peroxy compounds. FMC CORP. 12 Dec., 1966 [14 Dec., 1965], No. 55455/66. Heading C1A. A material that gives off gaseous oxygen when in contact with water is made by heating a compound which contains peroxygen values at a temperature of 40-300 C., but below the melting points of the compound and of the product material, whilst suspended in a stream of inert gas, e.g. air, nitrogen or argon, with the average distance between the suspended particles being at least 0À07 times the diameter of the particles and the water content of the inert gas being maintained below that which would degrade the product. The peroxygen starting compounds listed fall into three groups:-(a) monoperoxy and diperoxy salts having alkali metal, alkaline earth metal or ammonium cations and persulphate, perphosphate or percarbonate anions; (b) alkali metal, alkaline earth metal or ammonium salts of inorganic polybasic acids, or of oxalic acid, containing hydrogen peroxide in the crystal structure; and (c) amines, amides, and imides having hydrogen peroxide hydrogen-bonded thereto.
Patent GB-1328820-A (GB)
Title: Toilet flush valve assembly
IPC: E03D1/30
Filed: 1970-11-24
Abstract: 1328820 Flushing cysterns TWENTIETH CENTURY PRODUCTS CORP 24 Nov 1970 [25 Nov 1969] 55844/70 Heading E1C In a flushing cystern for a W.C. of the kind wherein discharge is effected by lifting a buoyant valve member 10 from a hollow body 1, which provides a discharge passage 6 and is secured within an aperture in the bottom 3 of the cystern, the buoyant valve member which is preferably formed by upper and lower parts 11, 15 of plastics material snapped together by interengaging lips 14, 16, is provided with flanges 13, 17 between which is gripped an annular rubber seal 18 adapted to engage a seat (7, Fig. 2, not shown) formed by the upper end of the hollow body 1, the valve member being guided for movement to and from the seat by a depending rod 25 which is guided in a guide positioned within the discharge passage 6. A flange 12 is preferably arranged on the valve member so as to be slightly spaced from the seal 18 when the valve member is in raised position, but which under the hydrostatic pressure of water when the cystern is full is urged downwardly so that the seal 18 is then gripped between the flange 12 and the seat 7, as shown. The guide for the depending rod 25 preferably comprises an aperture in a hub 26 of a spider 27 formed within the discharge passage 6. The valve member 10 is lifted by a flexible cord 21 which extends through an aperture in a stop member 23 the height of which is adjusted such that, when a boss 19 on the upper part 11 of the member 10 engages the stop, the rod 25 is just retained within the aperture in the hub 26, this aperture being sufficiently large to allow the valve member to be tilted manually when in its uppermost position whereby it can be removed for replacement purposes.
Patent GB-1243970-A (GB)
Title: Improvements in or relating to the bonding of workpieces and apparatus for use therein
Inventor: MOORE KENNETH LAWRENCE
IPC: A43D25/18
Filed: 1967-12-09
Abstract: 1,243,970. Boots &c. BRITISH UNITED SHOE MACHINERY CO. Ltd. 9 Dec., 1968 [9 Dec., 1967], No. 56120/67. Addition to 1,202,357. Heading A3B. [Also in Division B5] The method of the parent specification of coating a piece of sheet material, e.g., a shoe upper component, with heat-softenable adhesive in which the piece is sandwiched between a layer of adhesive and a carrier layer, heat and pressure are applied to bond the adhesive to the piece and carrier layer and the piece is separated leaving surplus adhesive on the carrier layer is modified by (a) directing a stream of hot air between the piece and the carrier layer as they are being separated, whereby to facilitate separation and (b) passing the coated pieces over a cooling surface to render the adhesive non-tacky so that successive coated pieces may be stacked on the top of another. As described a layer of adhesive on a backing layer 193, e.g. of paper coated with a release agent, together with the pieces to be coated and a carrier layer 310 are passed between heated pressure rollers 118, 120. A stream of hot air from a nozzle 354a is directed at the point where the carrier layer 310 is separated from the pieces and the backing layer 193 to facilitate the separation and to minimise stringing of the adhesive. The backing layer and pieces then pass over a cooling surface (Fig. 3) consisting of a tank 382 filled with liquid which is cooled by the refrigerating coil of a refrigerating unit 366. The cooled pieces are stripped from the backing layer 193 by a roller 388 and are stacked in a container 394.
Patent GB-1268366-A (GB)
Title: Telecommunication switching centre
Inventor: THORNCROFT ROY CHARLES
IPC: H04L1/02
Filed: 1968-11-27
Abstract: 1,268,366. Digital transmission systems. STANDARD TELEPHONES & CABLES Ltd. 20 Nov., 1969 [27 Nov., 1968], No. 56391/68. Heading H4P. In a telecommunication system which includes a switching centre having incoming and outgoing TDM highways in which speech and other signals are conveyed by a relatively high rate bit stream, and in which telegraph signals are also conveyed at a rate lower than the high bit rate, so that each telegraph element embraces several bits of the stream, the sign of each telegraph element is detected by a device which samples each element a number of times N and passes the results of said sampling to a store where a majority decision circuit determines the sign of each element when more than N/2 samplings are of the same sign. The system may handle telegraph traffic having a number of different element rates. The results of the sampling may be passed to an N bit shift register and if N = 8 then if 5 or more samplings indicate say a " 1 " condition the result is passed to a store. This arrangement can therefore tolerate three errors in eight. The channels are interconnected by coordinate matrix switches and telegraph signals are demodulated and stored until an outlet is available when they are modulated at bit rate in conventional manner. Each TDM channel may have a basic repetition rate of 19À2K baud which is de-multiplexed via the cross point device of the switch CS and passed to a de-modulator DE connectible to each switch vertical and a modulator MO having access to a switch horizontal, both demodulator and modulator working into a storage processor device SP having a means to identify the bit rate. For other repetition rates the clock pulses are also adjusted to run at eight times the information rate. The requirements of modulator MO are simpler than that for the demodulator as information reaching it from the store is assumed to be correct. Information may be transferred to or from the store either one character at a time or in blocks.
Patent GB-1376299-A (GB)
Title: Chain conveyors with interchangeable elements
IPC: B65G21/06
Filed: 1971-12-09
Abstract: 1376299 Chain conveyer SOC DES ACIERS FINS DE L'EST 9 Dec 1971 [11 Dec 1970] 57324/71 Heading B8A A chain conveyer has a central body carrying a motor and reduction gearing to which is coupled a driving shaft which supports a driving sprocket; a frame structure supporting the shaft, motor and reduction gearing; idler sprockets and chain tensioning devices mounted symmetrically on either side of the shaft; interchangeable chain support elements and an adjustable support for the assembly. In Fig. 1, tripod T is adjustable in height and supports a central body C and a motor and reduction gearing unit M, arms B 1  and B 2  of selected lengths being mounted on the body C. A conveyer chain 7a, 7b, driven by a sprocket mounted on the driving shaft coupled to the motor, extends round idler sprockets at the extreme ends of arms B 1 , B 2 . The chain tensioning devices each comprise a bellcrank lever 56 having unequal arms, the short arm being connected to a tension spring 67 and the far end of the long arm being mounted for movement in a vertical notch 64, see Fig. 4, as the lever 56 pivots. The chain is supported on a sprocket mounted on this far end of the long arm, and the lever 56 pivots to take up the slack and tension the chain (see Fig. 4).