baber/WOPTO huggingface dataset:
Patent GB-186705-A (GB)
Title: Improvements in or relating to cop, bobbin or like holders for braiding machines or for winding or like machines
IPC: B65H49/06
Filed: 1921-07-04
Abstract: 186,705. Wade, H., (Universal Winding Co.). July 4, 1921. Braiding -machines .-Cop bobbin or like holders for braiding &c. machines comprise a sleeve 2 which can be inserted in the bore of the cop or bobbin tube, a ratchet disc 3 mounted on one end and an inner sleeve 4 which serves as a bushing to enable the holder to rotate freely on the spindle of the braidercarrier &c. These parts are made of sheet metal united as follows. The head 3 is constructed from a circular blank which is cupped out and slotted to receive lugs 9 of the sleeves 2, which are riveted over. The sleeve 2 is constructed of sheet metal bent into tubular form and slit at 15 to provide outwardly bowed spring members 16 which engage the interior of the cop tube. The upper end of the bush 4 is inserted in the central hole 7 of the head 3 while the lower enlarged end fits closely within the end of the outer sleeve and its ends are swaged or headed over at 20 to secure it in place. Midway between the ends an annular abutment 21 or a wire or ring is provided to form a stop for the members 16. To form the ratchet teeth 11, the cupped rim of the blank 3 is slit at intervals to provide ears 12 which are folded round in horseshoe shape and notched to form lugs 13, the metal of which is crushed cr extruded down through holes 10.
Patent GB-1177393-A (GB)
Title: Slide Adjustment Device for Mechanical Presses, especially Crank Presses
Inventor: ZILKA STANISLAV
IPC: B30B15/00
Filed: 1967-04-20
Abstract: 1,177,393. Mechanical presses. SMERALOVY ZAVODY. 20 April, 1967 [7 May, 1966], No. 18174/67. Heading B5F. [Also in Division B3] A device for releasing a jammed member of a mechanical press comprises a chamber containing a pad 9 of reversible gel, and means through which the gel can escape to release the jammed member. The pad 9 may be moulded from gelatinized polyvinyl chloride. In Fig. 1 the invention is applied to a vertical forging press having a slide 1 connected through an eccentric pin 3 to a connecting rod 2. A two-armed lever 4 keyed to the eccentric pin 3 has one arm provided with a rotatably mounted nut 5 engaging with a screw-threaded adjusting rod 6. The rod 6 has a spherical end portion engaged in a releasable clamp including a chamber 14 containing a pad 9 of a reversible gel. The other arm of lever 4 is formed with an hydraulic cylinder for a piston 11. In the event of jamming, a screw plug 10 is removed, and hydraulic pressure applied to the cylinder containing piston 11 so that an increased pressure is applied to the pad to liquefy it and cause it to escape through the outlet vacated by plug 10. In Figs. 2, 3 (not shown), the invention is applied to a knuckle-joint press and a double crank press respectively.
Patent GB-816625-A (GB)
Title: Improvements in or relating to apparatus for bending tubes
IPC: B21D7/16
Filed: 1957-06-07
Abstract: 816,625. Angular bending. HUET, A. June 7, 1957 [July 3, 1956; July 6, 1956; July 11, 1956], No. 18262/57. Class 83 (4). Apparatus for bending tubes includes a punch for exerting pressure on a tube to be bent kept at a suitable temperature gradient thereacross, a roller to each side of the punch to back the tube being bent, a partitioning member in the tube to divide it into two compartments and a pipe inside one of said compartments to supply coolant thereto. A tube a to be bent is pressed by a piu ch d against backing rollers b, c while heated at that part A which will form the inside of the bend and cooled at that part which will form the outside of the bend. The tube a is divided into two compartments by a longitudinal strip h, is heated at A before bending and is kept hot there by a flame tube inside the tube a, or, as shown, by a flame tube l or hot gas in a bore k in the punch d, and is cooled in the other compartment by atomised water or very humid air from a pipe g in the tube a. The pipe g may be integral with the strip h and hinged at i and j. On completion of the bending the punch and the tube can be cooled by liquid coolant in the bore k. The punch d is wide enough to support the whole of the bend and is formed with a groove to accommodate the tube a which groove bulges at e to allow thickening of the inside of the bend. The tube a is also supported laterally at its cooled part by cheeks f<SP>1</SP>, f<SP>2</SP> on the punch. An ejector m which may comprise several segments, facilitates withdrawal of the bent tube from the punch. The bent tube may be further shaped by a die shaped to the outside bend of the finished elbow, the outer part of the bend being heated and the inner part preferably cooled. This die may include a tube ejector. Specification 792,889 is referred to.
Patent GB-1176163-A (GB)
Title: Improvements in or relating to Aerial Assemblies
Inventor: CHURCH BRIAN ANDREW
IPC: H01Q11/10
Filed: 1966-04-26
Abstract: 1,176,163. Aerials. PLESSEY CO. Ltd. 14 April, 1967 [26 April, 1966], No. 18298/66. Heading H4A. An aerial assembly comprises a rod-shaped body of insulating material, an area or areas of conductive material deposited thereon, and conductive aerial elements extending transversely from the body and making contact with the conductive material thereon. As described, for an aerial of the logarithmically periodic type, a fibre glass tube 1 has on its outer surface two strips 2, 3 of copper, or other conductive metal, which are deposited, for example, by spraying, and are joined at the rear end 4. Dipoles 5, which taper in length towards the front or feed end of the aerial, comprise metal rods or tubes, or fibre glass rods with metal coatings, secured in holes in the tube 1 and in electrical contact with the transmission line formed by the strips 2, 3. The divisions between the strips 2, 3 may be straight (as shown in Fig. 1c), when the halves of each dipole lie in separate parallel planes, or the divisions may be zig-zagged (as shown in Fig. 2) when the halves of the dipoles may be coplanar. The metallic surfaces may have protective coatings of epoxy or polyurethane paint.
Patent GB-1423476-A (GB)
Title: Voltage-dependent resistances
IPC: H01C7/108
Filed: 1974-04-26
Abstract: 1423476 Modified zinc oxide; zinc ferrite; cobaltite and antimonite C CONRADTY 26 April 1974 [28 April 1973] 18323/74 Headings C1A and C1J [Also in Division H1] A voltage-dependent ceramic resistor comprises a semi-conducting mixed oxide ceramic of the general composition AB 2 _ x O 4-1À5x , where A is one or more of the elements Mg, Ca, Sr, Ba, Mn, Zn and Pb and B is one or more of the elements B, Al, Cr, Fe, Co, Sb and Bi and x is between 0 and 1À99. Resistors are made by presintering the composition, grinding and pressing it into the desired shape, and subsequently sintering at 1000-1400‹ C. Contacts are provided by flame spraying with bronze or coating with silver. Various examples of the composition are given, which produce values of the exponent of the I-V characteristic of the resistors of between 1À8 and 54. Specified materials are ZnFe 2 O 4 , ZnCO 2 O 4 , ZnSb 2 O 4 , and ZnO containing small amounts of Fe 2 O 3 , Co 2 O 3 , Sb 2 O 3 , Bi 2 O 3 , CoO and/or MnO.
Patent GB-915744-A (GB)
Title: Improved means for securing permanent way rails
Inventor: PENN ELI
IPC: E01B9/48
Filed: 1958-06-09
Abstract: 915,744. Securing railway rails. TURTON PLATTS & CO. Ltd., GEORGE. June 8, 1959 [June 9, 1958], No. 18402/58. Class 104 (2). A rail 6 is secured to a sleeper 8-either directly or, as shown, to a chair 7 on the sleeper-by means of U-shaped clips 9 each of which has its base and its ends bent out of the plane of the U, the base 9c extending downwardly to engage the sleeper or chair and the free ends 9a, 9b similarly engaging the rail. The links of the U are bridged by a member 13 which co-operates with a nut 14 on a fixed bolt 11 to hold the clip in rail-holding position (firm lines in Fig. 1) but allowing for removal of the clip (to the broken line position) by merely loosening the nut. The ends 9a, 9b of the clip may be bent right back, i.e. tucked under the unbent central part of the U, and in such bending shaped to follow the contour of the rail flange 6a.
Patent GB-1014903-A (GB)
Title: Method of producing gaskets for container closures
IPC: B29C43/00
Filed: 1963-05-09
Abstract: 1,014,903. Container closures. W. R. GRACE & CO. May 9, 1963 [May 9, 1962 (3)], No. 18441/63. Heading B8T. A gasket, which may be in the form of an annulus, for a container closure is made by applying to the closure a liquid gasketing composition comprising an elastomeric polymer dissolved or dispersed in a volatile liquid, expelling the liquid from the composition in not more than ten minutes whereby a cellular gasket is formed, and, when the liquid gasket composition is not a gellable latex having a gas finely dispersed therein, compressing the cellular gasket to collapse the cells and form a substantially solid gasket before a closure is applied to the container. The polymer may be a natural rubber, butadiene-styrene copolymer, a butadiene-acrylonitrile copolymer, butadiene - styrene - acrylonitrile terpolymer, polychloroprene, polysulphide rubber, butyl rubber, a plasticized vinyl chloride polymer or copolymer or a mixture of two or more of these. The composition may comprise a gellable latex with air finely dispersed therein, and with a gelling agent comprising an ammonium soap, a complex zinc ammonium salt or a polyvinyl methyl ether. The polymer may be dispersed or dissolved in an organic liquid which is flashed off as the composition is applied to the closure. The liquid may be expelled at temperatures between 150‹ and 400‹ F.
Patent GB-530477-A (GB)
Title: Method of and apparatus for obtaining cross-sections of bodies by means of x-rays
IPC: A61B6/02
Filed: 1939-06-24
Abstract: 530,477. R÷ntgen-ray kinematograph, and optical projection apparatus. PHILIPS LAMPS, Ltd. June 24, 1939, No. 18484. Convention date, June 27, 1938. [Classes 97 (i) and 98 (i)] To produce an X-ray image of a section of a body, indicated by way of example as a cylinder 3 with a less permeable core 4, a beam of X-rays 10 passing transversely through the body is limited by a slotted diaphragm 5 to a narrow beam in the plane of the section, which forms a narrow strip-like image on a film 7. A number of such partial radiographs are taken from different directions, the X-ray source, screen, and film 7 being rotated round an axis passing through a fixed point in the section without changing the distances between them and the axis of rotation. Each strip-like radiograph is then enlarged laterally to give an image of the kind shown at 9, Fig. 2, and the enlarged images are superposed in the same angular relationship as that which existed between the directions from which they were taken. Fig. 2a shows the effect of combining two images taken from directions with an angle α between them, the result of combining a sufficient number of such images taken from directions extending over an angle of 180 degrees when a substantially parallel beam of rays is employed, or over 360 degrees when the beam is not parallel, being to form the desired image of the section. By continuous relative rotation of the object and the X-ray apparatus a band composed of coalescing strip images may be obtained, Fig. 7 showing an apparatus for this purpose, in which an X-ray tube 38 projects an image through a slot diaphragm 40 of a section of an object supported on a rotary platform 42, the image being received on a film mounted on a roller 41 which is rotated in synchronism with the platform 42. To obtain a picture of the cross-section, the developed film is placed on a cylinder 23, Fig. 6, of the same size as the cylinder 41 and is illuminated by a point source of light 25 within it. The beam passing a slit diaphragm 24 is enlarged in a transverse direction by cylindrical lenses 26, 27 and the image is received on a sensitive plate 9 which is rotated in synchronism with the cylinder 23. A composite image is thereby formed on the plate representing a synthesis of the images formed by the projection of every part of the film through the slit. The Specification as open to inspection under Sect. 91 also refers to a similar method for obtaining a visual image in which a mirror or lens system is employed after the cylindrical lens 27 to rotate the image at the same angular speed as that of the cylinder carrying the film. A modification of the apparatus shown in Fig. 7 is also referred to in which, for the purpose of obtaining images of successive sections, the platform 42 is uniformly raised or lowered as well as rotated, and a continuous band of film replaces the cylindrical film on the roller 41. This subject-matter does not appear in the Specification as accepted.
Patent GB-260036-A (GB)
Title: Improvements in or relating to thermionic amplifiers and the like
IPC: H03F1/16
Filed: 1925-07-20
Abstract: 260,036. Round, H. J. July 20, 1925. Thermionic amplifiers.-In a multi-valve thermionic amplifier of the kind having anti-reaction means for neutralizing the effects of inherent capacity couplings, some of the inductances in the plate circuits of the valves are astatically wound, and some wound in the usual way. As shown, the tuned inter-valve circuits are connected on the one hand to the plate, and on the other through balancing capacities 4 to the grids, an intermediate point on the coils being kept at zero high-frequency potential by a connection to the plate battery 5. Some of the coils, e.g. the plate coil of the second valve, are wound in the usual way, whilst others e.g. the plate coils of the first and third valves are wound in two halves 3a, 3b which are so placed that whilst the desired inductance is presented to currents circulating in series through them, their external field is practically zero. Oscillations, other than those transmitted by the amplifier in the normal way, are prevented.
Patent GB-755059-A (GB)
Title: Improvements in stone breaking or crushing machines
IPC: B02C13/284
Filed: 1954-06-25
Abstract: 755,059. Impact pulverizers. SAZYN, S. June 23, 1955 [June 25, 1954], No. 18623/54. Class 59. A stone breaking or crushing machine comprises a plurality of hammers resiliently mounted on a driven shaft B to rotate within a casing A, each hammer extending between the bars D of a grid to break or crush the stone thereon and subsequently further break or crush the stone to the required size against a sieve composed of longitudinal bars d, d<SP>1</SP>, the bars of the grid passing through the sides of the casing and being supported at their ends by members A<SP>1</SP> secured thereto and to the sides of the casing. Each hammer comprises a hub portion c, Fig. 4, keyed to the shaft B and formed with a circular rib c<SP>1</SP> having a projecting lug c<SP>2</SP> on one side, a striking member c<SP>3</SP> being carried by a pair of plates c<SP>4</SP> mounted on the rib c<SP>1</SP> and connected thereto by springs E extending between the lug c<SP>2</SP> and lugs c<SP>5</SP> formed on the plates c<SP>4</SP>.
Patent GB-692722-A (GB)
Title: Novel copolymers, process for preparing such copolymers and compositions including the same
IPC: C08F212/08
Filed: 1950-07-26
Abstract: Copolymers of styrene with unsaturated aliphatic carboxylic acid esters, which esters may be substituted by halogen atoms, are prepared under such conditions that the fraction of copolymer formed initially has an average molecular weight of less than 3000, an average ratio of aliphatic carbon atoms to esterified carboxylic groups of from 4 to 10, this ratio being obtained by including the carbon atoms of the carboxylic groups with the aliphatic carbon atoms, and an average ratio of esterified carboxylic groups to phenyl nuclei of at least 1.8, and maintaining conditions such that the fraction of copolymer formed in any subsequent small interval of time falls within the above molecular weight and composition limits. Unsaturated esters specified are the vinyl, allyl, isopropenyl and isobutenyl esters of formic, acetic, propionic, and butyric acids, chloroallyl acetate, methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, ethyl chloroacrylate, and diethyl maleate. The copolymers may also include alkenes such as ethylene, those containing 5 to 18 carbon atoms, and alkenes containing more than one unsaturated bond; the alkenes may have hydrogen atoms substituted by halogen atoms.  The molecular weights of the copolymers may be kept within the desired range by means of variations in the polymerization conditions, such as the use of high temperatures, polymerization in dilute solutions, and the use of chain stoppers such as alcohols, aldehydes such as valeraldehyde, diethyl ether, acetone, chlorinated hydrocarbons such as carbon tetrachloride, chlorinated alcohols, aldehydes and ethers, esters of chlorinated organic acids such as propylchloroacetate, amines, nitro compounds, and mercaptans such as dodecyl mercaptan.  Copolymers of the desired composition are obtained by charging the monomers in a ratio such that the copolymer formed initially has the desired composition, and thereafter maintaining the ratio of monomer concentrations either by stopping the reaction when the ratio of the monomers has attained a limit value, or by adding the monomers gradually to the reaction mixture as they are used up; this process may be carried out continuously by adding the monomers and subtracting the copolymer continuously.  The polymerization may be carried out in bulk, solution, or emulsion with the aid of catalysts such as Friedel-Crafts catalysts, ditertiary butyl peroxide, or benzoyl peroxide.  The copolymers produced are generally liquid at room temperature, and the unsaturated bonds therein may be removed by chlorination or hydrogenation.  The copolymers may be used to plasticize vinyl chloride polymers and copolymers, and, mixed with oleaginous vehicles, may be used as lubricants.  Specifications 617,891 and 682,254 are referred to.
Patent GB-166145-A (GB)
Title: Improvements relating to the doors of motor carriages and other vehicles
IPC: B60J1/00
Filed: 1921-07-11
Abstract: 166,145. Salin (nee LÚvy), R. July 10, 1920, [Convention date]. Addition to 159,841. Doors for passenger vehicles.-The anti-rattling device for the doors of motor vehicles described in the parent Specification is modified in that the fittings a<1>, f<1>, Fig. 3, attached to the door and body respectively and carrying the male and female members e, d are arranged on the inside of the door and body. The fitting f<1> preferably embraces one edge of the panels h and is attached thereto by screws u. In a modification, Fig. 9, which shows a forward coupÚ door, the fitting f<2> is arranged on the inner edge of the door post, and has an extension h<1> secured to or bearing against the body t<1>.
Patent GB-743651-A (GB)
Title: Wall plugs and like fixing devices
IPC: F16B13/08
Filed: 1952-07-24
Abstract: 743,651. Wall &c. plugs. DEBRAY, J. E. July 24, 1952, No. 18754/52. Class 89 (1). A fixing device for use on walls &c. comprises a core 3 having a conical or frusto-conical head 4 and a sleeve 1, one end of which has pointed teeth 2, the conicity of the head being between 60 and 90 degrees and the other end of the core projecting beyond the sleeve to act as a guide for a tool A, Fig. 3, used to drive the sleeve over the head to expand the teeth 2. The head 4 may be integral with the core 3, which may be screwed to receive a nut, or may consist of a nail-shank for impaling wood &c., or the head may consist of a nut 10, Fig. 5, with a polygonal exterior, to receive a screwed core.. This core may be a headless pin 11 for guiding the driving tool, and is subsequently removed to allow a headed securing bolt to be inserted. The sleeve may be a thimble 1a, Fig. 6, to be driven into thin material 1b, together with the head 4. The core 7, Fig. 9, may be secured to a wall &c. B by a nut 6 and project through a member C which is fixed thereto by nuts 9. The sleeve 1 may be rolled from a strip having a serrated edge and have an open seam so as to grip the core, and its exterior may be knurled, channelled, coloured &c.
Patent GB-319819-A (GB)
Title: Improvements in or relating to variable capacity electric condensers
IPC: H01G5/06
Filed: 1928-06-28
Abstract: 319,819. Robinson, T. A. W. June 28, 1928. Condensers. - The shaft 2 carrying the moving vanes 1 carries between two dovetailing nuts a thin, resilient, friction-wheel 4, which engages with a friction-wheel 12 on a lay shaft 10. Another friction-wheel 11 on the lay shaft 10 engages a frictionwheel 8 fast on a pin 7 on the end of a shaft 5. The wheels 8, 12 are of identical form, each comprising a part, 8<a> fast on the shaft, and a part, as 8b which is loose on the shaft and urged by a spring to press the co-operating wheel between the two parts. Coarse adjustment is effected by rotating the knob on the shaft 5. The shaft 2 comprises a tube 2a located between end-pieces 2b, 2<c>, threaded parts b of which are screwed onto a tube 2<d>. The end-pieces are tapered to bear in fixed bearings 13 in the endplates 15, the bearings 13 being coned to form a race for balls 14. The mounting of the plates 1 on the tube 2<a>, of the plates 20 on the three tubes 18, and of the tube 19 on the ends of the plates 1, may be done according to the method described in Specification 317,294. Two bolts 16 passing through two of the tubes 18 carry terminals 25 for the fixed vanes, and a third bolt 16 in the third tube 18 carries a terminal 22 for the moving vanes and is connected by a flexible lead 23 to an element 24 on the shaft 2. The provisional Specification also refers to adjustment of the bearing pressure roughening the bearing surfaces to provide a friction drag, and to a modified form of mounting the two end-pieces.
Patent GB-848649-A (GB)
Title: An arrangement for fixing the movable tuning core of a high-frequency coil
IPC: H01F17/04
Filed: 1959-06-02
Abstract: 848,649. Adjusting radio tuning. TESLA NARODNI PODNIK. June 2, 1959 [July 7, 1958], No. 18804/59. Class 40(5). An arrangement for fixing a movable cone of a high frequency coil on a driving cord is characterized in that the cone 1 is provided with a crooked hole 3 through which the cord 2 is run, so that when stretched it becomes fixed in the hole.