baber/WOPTO huggingface dataset:
Patent GB-1310369-A (GB)
Title: Radiation-sensitive polysulphonates
IPC: C08G75/24
Filed: 1970-09-17
Abstract: 1310369 Polysulphonate coating EASTMAN KODAK CO 17 Sept 1970 [22 Sept 1969] 44454/70 Heading B2E [Also in Divisions C3 and G2] A radiation-sensitive linear film-forming polysulphonate comprises recurring units derived from an aromatic disulphonyl chloride and recurring units derived from a radiationsensitive bisphenol containing a styryl ketone group, i.e. a group of the formula:- A non-radiation-sensitive bisphenol may be present, e.g. bisphenol A. The following compounds are used in the Examples; radiationsensitive bisphenols-2,5 divanillal-cyclopentan 1-one and divanillalacetone, other phenols -bisphenol A and 1,5-bis(4-hydroxy-3-methoxyphenyl) pentan-3-one and 1,3-benzenedisulphonyl chloride, 1-methyl-2,4-benzenedisulphonyl chloride and 1,3-dimethyl-4,6 benzene disulphonyl chloride. The radiation-sensitive polysulphonates in a solvent may be used as coating compositions which may contain other additives, e.g. sensitizers and phenolic resins. Such compositions may be coated on to paper, polyethylene-and polypropylene-coated paper, parchment, cloth, aluminium, copper, magnesium, zinc, glass and glass coated with chromium alloys, steel, silver, gold and platinum, polymethylmethacrylate, polyethylene terephthalate, polyvinyl acetals, polyamides and cellulose-esters. Photomechanical images can be prepared with such coated products by exposure to a source of radiation, e.g. U.V. radiation, to harden the polymer in exposed areas, and developing with a solvent for the unexposed uncrosslinked polymer and which is a non-solvent for the exposed hardened polymer. Examples describe photoresists on copper and aluminium and a lithographic plate.
Patent GB-1020483-A (GB)
Title: Process and apparatus for contacting liquids and gases in counter-current
Inventor: DOUGLAS HAROLD ROY
IPC: F28C1/00
Filed: 1961-12-14
Abstract: 1,020,483. Contacting gases with liquids. DOMINION TAR & CHEMICAL CO. Ltd. Nov. 2, 1962 [Dec. 14, 1961], No. 44773/61. Heading B1R. In a process for contacting a gas with a liquid, the gas and liquid are passed in countercurrent through a column I containing between grids 4 and 5 a multiplicity of light-weight bodies 6 maintained in random motion by the upward flow of the gas. The gas may be passed through a plurality of such contact zones in series and the bodies are preferably spherical with a specific gravity in the range between 0À01-0À9. The bodies in a contact zone may have a random variety of specific gravities and occupy not more than 50% of the volume of the zone. The bodies may be hollow or solid and made of plastic or foamed plastic material.
Patent GB-1189497-A (GB)
Title: Catamenial Appliances
Inventor: GERRARD JOHN
IPC: A61F13/15
Filed: 1967-10-03
Abstract: 1,189,497. Sanitary towels. COXSON, GERRARD & CO. Ltd. 2 Oct., 1968 [3 Oct., 1967], No. 44866/67. Heading A5R. A sanitary towel comprises a pad of absorbent material I enclosed in a tubular covering 2 of loosely knitted net extending beyond the pad at both ends and having each end flattened with one face secured in facial contact with a flat flexible body of reinforcing material 5 such as cotton wool, a hole 7 being punched through each of the end tabs so formed. A further flat body 6, preferably made of an open weave material such as scrim, may be secured to the other face of each end tab. The preferred method of securing members 5 and 6 to the cover 2 is by a needle-punching or felting process. In an apparatus for automatically forming the end tabs two rolls of scrim (6') are spaced apart on a common axis by a distance equal to the length of the body of a sanitary towel. The ends of the scrim strips pass onto a wide belt (8) guided over rollers. Sanitary towels in the form of absorbent pads 1 in tubular covers 2 are passed down a guide (9) in a direction perpendicular to their length to fall onto the conveyer belt (8) with the two ends of the covering 2 overlying the strips of scrim. Two strips of cotton wool 5 are guided by belts (10) from rolls (5') so that they lie on top of the end portions of the covering. The two belts (8 and 10) carry the towels and strips of scrim and cotton wool to a point between upper (11) and lower (12) guides where the sandwiched ends are subjected to a needle-punching operation by tools (13) that carry an array of barbed needles. The conveyor belts are stopped while the needle-punching takes place and are then restarted to carry the towels, now joined together at their ends by the strips of cotton wool and scrim, to punches (14) where the belts are again stopped and the punches simultaneously separate the towels from one another, trim the ends to the desired shape, and punch the holes 7 in the tabs.
Patent GB-1434311-A (GB)
Title: Coaxial connector
IPC: H01R24/20
Filed: 1973-09-27
Abstract: 1434311 Two part coupling BUNKER RAMO CORP 27 Sept 1973 [28 Sept 1972] 45211/73 Heading H2E To couple two coaxial cables with small impedance mismatch in the range 0À1-6 GHz, mating connectors on their ends have PTFE insulating inserts making up 60% of axial gap (<¢ inch) between cable dielectrics, with air making 40%. Plug connector 10 has male centre contact 18 with tapered slotted nose entering female centre contact 58 in jack connector 52. Both centre contacts have barbs 49, 74 to prevent backward movement. The outer shell 22 of plug 10 fits over the shell 62 of the jack, with flare and taper to assist entry and two inward springing tines on the jack to ensure contact. PFTE inserts 14, 56 fit in counterbores in shells, staked by four depressions 16, 70, and retain centre contacts. On engagement the rim of jack 62 abuts shoulder 42. Centre conductors may be soldered or crimped into centre contacts before insertion from rear; outer conductors fit over tapered ends of shells 28, 64, with dielectric snugly inside, where crimping ferrules 44, 60 retain them. In an alternative embodiment (Fig. 6, not shown) the female centre contact 58 on the jack is slotted and the male centre contact 18 on the plug is tapered but solid.
Patent GB-1329729-A (GB)
Title: Sintered hard material alloy containing auxiliary metal and process for its production
IPC: C22C29/02
Filed: 1970-09-28
Abstract: 1329729 Sintered carbonitride bodies UGINECARBONE 28 Sept 1970 [30 Sept 1969] 46076/70 Headings C7A and C7D Sintered alloy consists of 65-97% of a hard phase of which at least 35% is at least one carbonitride of transition metals of groups IVa and Va of the Periodic Table containing less than 0À15% oxygen any balance being one or more metal carbides in free state or as solid solution, and 3-35% of a binding agent consisting predominantly of at least one of the metals Fe, Co and Ni and at least one of the metals Cr, Mo and W. The carbonitride may be deoxidized by annealing a powder mixture thereof with 0À5-5% of Cr, Mo or W powder at 1500-1800C. under N 2  at reduced pressure (e.g. 50-300 mm Hg). Exemplary binder alloys preferably contain 5-40% of Cr, Mo or W and may contain Ti or Al. Decomposition of the carbonitride during heating (e.g. during refining or sintering) may be counteracted by increasing the nitrogen pressure to 1-30 atmospheres towards the end of the heating.
Patent GB-1198746-A (GB)
Title: Conduit Cleaning Apparatus.
Inventor: CARLSON ARTHUR BERTIL
IPC: E03F9/00
Filed: 1968-09-27
Abstract: 1,198,746. Cleaning pipes and tubes. CONCO Inc. 27 Sept., 1968 [6 Nov., 1967 (2)], No. 46096/68. Heading F2N. A conduit cleaning apparatus, e.g. for sewer pipes, comprises a tool 20 adapted to be rotatably and longitudinally moved through a pipe to clean the same, a rotatable drum 16, a length of cable 18 connected to the tool 20 and carried by the drum to rotate therewith about its longitudinal axis and a mechanism 24 for feeding the cable 18 to and from the drum during rotation thereof, comprising at least one roller drivingly engaging, when operable, the periphery of the cable 18 and with the axis of rotation of the roller and the longitudinal axis of the cable disposed in different planes. As shown, the drum 16, driven by a motor 22, and the feeding mechanism 24, are carried on a yoke 14 mounted on a base 10 the feeding mechanism comprising a tube 32 with end caps 34, 34 and accommodating a pair of cable-engaging rollers 42, 54 mounted-, respectively on axes 44, 56 in bifurcated 40, 52 on the inner ends of a pair of cylindrical rollers 36, 46 located, one at each side, of the cable 18. The latter passes between the nip of the rollers 42, 54, being located by upper and lower guides 86 and accommodated in the horizontal portions 84 of a double bayonet slot 82 in the tube 32. The cylindrical roller 46 is urged toward the cable 18 by a spring 70 the force of which is adjustable by means of a thumbscrew 66 threaded into an end plate 34. The cylindrical roller 46 is rotatable to a limited extent by a handle 62 which passes through a slot 58 in the tube 32, the rotation of the roller 42 being imparted to the other roller 36 in the opposite sense by means of an endless cable 76 which passes through apertures 74 in a handle 72 and which is secured to the cylindrical roller 46 at 80. In use, with the handle 60 upright the axes of the rollers 42, 54 are parallel and the cable, 18, continuously rotated by the motor 22, has no axial feed. Tilting the handle 60 either one way, or the other, alters the relative inclinations of the axes (90), (92) of the rollers (42), (54) to feed out the cable (18), Fig. 6 (not shown), or feed in the cable (18), Fig. 7 (not shown). The cable 18 can be introduced into the keyhole slots 82 by slackening off the thumbscrew 66. In a modification, Figs. 9, 10 (not shown), the cable (118) is nipped between rollers (144), (148) one roller (148) being rotatable on a boss (150) fixed to the yoke (114) and the other (144) on a boss (140) on a pivotal lever (136) which can be lowered to engage the cable (118). With the lever (136) lowered the cable (118) is fed in or out depending upon the direction of the motor (122) no feed being obtained when the roller (144) is raised off the cable (118).
Patent GB-1463568-A (GB)
Title: Machine for reproducing an article from a pattern
IPC: B24B13/06
Filed: 1974-10-25
Abstract: 1463568 Grinding lenses SOC CMV 25 Oct 1974 [26 Oct 1973] 46214/74 Heading B3D A machine for reproducing an article, such as a lens 78, from a pattern 74 comprises parallel supporting shafts 38, 40 on which the pattern and article are mounted and which are driven by drive means at the same rotational speed, the pattern and article being in contact respectively with a feeler 84 and tool 82 in a constant space relationship equal to the interval between the pattern and article, the feeler and tool being in a determined position and the supporting shafts being mounted on a table 28 capable of making two perpendicular movements, an advance movement in a direction perpendicular to the shafts and a contact movement in a direction parallel to the shafts. The machine has a base 10 having adjustable feet 12 and to which is secured a section 20 having guides for movement of a displaceable section 26 in the advance direction. The section 26 has crossed roller guides 30, 32 for movement of the table 28 in the contact direction. The supporting shafts 38, 40 are mounted in bearings 34, 36 on the table 28, bearing 34 being adjustable along slots 64, 66 in the table. The shafts 38, 40 are constrained to rotate at the same speed by a toothed belt 46, and shaft 40 is connected by a belt 62 to a gear box 50 driven by a belt 56 from a motor 48. The end of shaft 38 has a support 72 for the pattern 74, and the end of shaft 40 has a support 76 for the lens 78 to be ground. The tool 82 consists of a grinding wheel driven by a motor 80 which is angularly adjustable by means of an arcuate slot 98. The feeler 84 is identical in size and shape with the grinding wheel and is freely rotatable about an axis 86 which is angularly adjustable by an arcuate slot 88 and can be moved parallel to the shafts by a hand wheel 92. The contact movement parallel to the shafts to engage the pattern 74 and lens 78 with the feeler 84 and grinding wheel, respectively, is effected by a pneumatic jack 136. The advance movement perpendicular to the shafts is effected by a pneumatic jack which advances the table at a rapid rate until the feeler and grinding wheel contact points 110, 112, respectively, of the pattern and lens, the jack then acting against a damper to effect a slow feed.
Patent GB-948252-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
IPC: F02F3/00
Filed: 1962-12-10
Abstract: 948,252. Casting composite articles. M. G. WHITFIELD, and H. WESLAKE. Dec. 10, 1962 [Aug. 16, 1962], No. 46568/62. Heading B3F. [Also in Divisions F1 and F2] A light metal piston comprises a protection cap 2 of titanium or titanium alloy which surrounds the head of the piston and is secured thereto by casting. As shown in Fig. 4, a mechanical interlock is provided between the cap and the piston body by mushroom-shaped projections 23 on the underside of the cap and spaced tapering extensions 20 in the skirt portion of the cap terminating in enlargements 22. The cap may be electrically coated with tin or dip coated in a molten aluminium bath before the light metal is cast against it. U.S.A. Specification 2,785,451 is referred to.
Patent GB-991748-A (GB)
Title: Improvements in devices for wiping surfaces and distillation apparatus including such devices
Inventor: WATT PETER RIDGWAY
IPC: B01D1/22
Filed: 1961-12-29
Abstract: 991,748. Wiper assembly for a film evaporator; molecular stills. VITAMINS Ltd. Nov. 28, 1962 [Dec. 29, 1961], No. 46680/61. Heading B1B. In a film evaporator, wherein the film of liquid to be evaporated is spread and agitated upon a heated surface by means of a plurality of wiper members resiliently mounted upon a support arm, the wiper assembly and the surface are maintained in relative motion, and the wiper members are simultaneously vibrated on the surface in a direction at right angles to the direction of relative motion between the wiper assembly and the surface. In the evaporator shown, the liquid to be evaporated is distributed as a film upon the upper surface 10 of a horizontal annular plate by three wiper assemblies mounted on radial arms 68, which rotate over the surface around the vertical arms of the plate. Each wiper member consists of a block 84 of rhomboidal shape, at the end of a flexible arm 78, the other end of which is a sphere 80. The spherical ends of the arms are contained in tube 72 so that arms 78 protrude from the slot 82. Tube 72 is mounted upon support arm 68 via the flexible blade springs 70 ; and it also carries an arm 74, cranked to extend beneath the feed gutter 40, which carries a soft iron piece 76 on its inner end, positioned such that piece 76 lies in the magnetic field generated by an electromagnet 44. Energization of the electromagnet with an alternating current of electricty causes tube 72 and the associated wiper members to oscillate radially to the surface. Thus the blocks 84 produce agitation in the liquid film on the surface as the wiper assemblies rotate. The liquid to be evaporated is fed on to surface 10 from the inner feed gutter 40 and gradually progresses across the surface during evaporation. The unevaporated residual liquid obtained at the periphery of the plate is removed via the outer gutter 18<SP>1</SP>. The wiper blocks 84 are preferably of material having a low coefficient of friction with the surface, such as polytetrafluoroethylene. A downwardly-facing, horizontal condenser surface may be mounted above the evaporation surface, thereby forming a molecular still. The distillate obtained in such a still may be submitted to distillation in a second molecular still. Specification 991,747 is referred to.
Patent GB-1273368-A (GB)
Title: Continuous production of axerophthol
IPC: C07C403/00
Filed: 1969-09-23
Abstract: 1,273,368. Production of axerophthol. BADISCHE ANILIN- & SODA-FABRIK A.G. 23 Sept., 1969 [24 Sept., 1968], No. 46742/69. Heading C2V. In a process for the production of axerophthol by transesterification of axerophthyl acetate with an alcohol, axerophthyl acetate together with an alcohol and guanidine as a catalyst are supplied continuously to a first column in which transesterification takes place at 40 to 110 C., some excess alcohol and the alkyl acetate formed being removed by distillation, the mixture of axerophthol, alcohol and guanidine formed as bottom product is supplied to a second column in which the alcohol is removed by azeotropic distillation with a hydrocarbon whose boiling point is from 50 to 120 C., and the mixture of axerophthol, hydrocarbon and guanidine formed as bottom product is worked up into axerophthol or used for further reactions. Examples are given in which the alcohols used are methanol and isopropanol and the hydrocarbons are hexane and heptane.
Patent GB-1248444-A (GB)
Title: Memory backspace device for printing apparatus
IPC: B41J19/62
Filed: 1968-10-03
Abstract: 1,248,444. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 3 Oct., 1968 [15 Nov., 1967], No. 47030/68. Heading B6F. Backspacing; width unit counting.-A memory backspace device for a typewriter includes a latch 50 biased towards its activated position in which it can retain a backspace key lever 26 in its fully depressed position for automatic repeat backspace operations, and a control means coupled to the latch 50 by a cable 52, which control means deactivates the latch 50 to release the backspace key lever after a selected amount of backspacing has occurred. The backspacing key lever 26 is depressible by two amounts, the initial amount giving single backspacing, and the full amount, in which position it may be latched, giving repeat backspacing. The control device, Fig. 1, includes a memory bracket (11) having a memory lever 12 universally mounted thereon by pins 21 and 22. The lever 12 has a friction pad 14 for engaging the bottom of a movable member 10 attached, for example, to the platen of the typewriter. A spring 23 biases the lever 26 upwardly and to the left so that it engages a stop 17 and the friction pad 14 engages the movable member 10. In this position the latch 50 is held in its non-retaining position by the cable 52. Movement of the platen and therefore the movable member 10 due to a typing operation, results in movement of the memory lever 12 away from the stop 17, and activation of the latch 50. Movement of the memory lever will be a direct measurement of the width units allotted to a character or a word, depending on the type of typewriter. A cable 58, when operated, pivots the lever 12 about pin 22, thereby moving pad 14 away from the movable member 10 to allow the lever 12 to return to stop 17. If the memory backspace device is to be utilized on a proportional spacing typewriter, the cable 58 is connected to a portion of the typewriter actuated during each actuation of a character key, e.g. the ribbon lift mechanism. If the selective amount of movement of the memory lever is the typed word, the cable 58 is connected to an interword function mechanism, e.g., the space bar mechanism of the typewriter. A cable 62 which operates in a similar manner to cable 58, is connected to means responsive to the various function operations, e.g., the carriage return or tabulation levers. In an alternative embodiment (Fig. 4), a latch (89) similar to the latch 50, Fig. 1, is provided for the backspacing key lever 26. However, the control means includes a wheel 70 spring biased into contact with the movable member 10. Mounted on the axle of the wheel (70) is a pulley (78) for driving an endless band (79) spring biased to a reference position at which the latch (89) is deactivated. The axle of the wheel (70) has one end journalled in one arm of a bell crank lever, the other arm of which is connected to a control link 77. This link 77 is actuated to tilt the bell crank lever and move the wheel (70) away from the movable member by cables connected to similar parts of the typewriter as cables 58 and 62 of Fig. 1.
Patent GB-1221908-A (GB)
Title: Improvements in and relating to viewfinders
IPC: G03B19/12
Filed: 1969-09-24
Abstract: 1,221,908. Camera view-finders. RICOH K.K. Sept.24, 1969 [Oct. 3, 1968; Dec.6, 1968], No. 47031/69. Heading G2A. A reflex view-finder comprising a penta-roof reflecting mirror has means for locating and holding it in a mounting member which can be attached to a camera. In Fig. 1 the view-finder has four studs 1a projecting from the underside, which enter into corresponding holes 2a in the mounting member 2. An eye-piece holder 1b extends rearwardly of the finder, and a securing screw 3 extends through a hole 1c in the floor of the holder into a tapped hole 2b in member 2. In the modification of Fig. 5, the lower edges 54a of the penta-roof view-finder 54 seat into a recess 53c in the mounting member 53, and is held there by springs 57.
Patent GB-1064700-A (GB)
Title: Improvements in elastic mountings of guide links or arms in vehicle road wheel suspensions
IPC: F16C11/06
Filed: 1964-11-20
Abstract: 1,064,700. Mounting suspension links. DAIMLER-BENZ A.G. Nov. 20, 1964 [Nov. 22, 1963], No. 47382/64. Heading B7D. A wheel support arm 11 in a motor vehicle suspension is mounted on the body 10 by means of a ball pin 14 which is connected to a housing 13 held by bolts 12 on the body, the ball 15 being engaged by plastic bearing members 16 and 17 located within a housing 18 which is mounted in a cup member 22 with the interposition of rubber rings 20 and 21 which are separated by a flange 19 on the housing 18 and are held in place by a cap member 23. The ball joint includes a dust cover 28 and a spring 31. In a modified assembly (Fig. 2, not shown) the spring is omitted and a close-fitting cap is used, and in another modification (Fig. 3, not shown) the ball joint is completed by the bearing members (16b, 17b) and the rubber rings (20 and 21), the housing being omitted and a U-section ring (35) reinforcing the bearing members (16b and 17b) serving to separate the rubber rings (20 and 21).