baber/WOPTO huggingface dataset:
Patent GB-872822-A (GB)
Title: Shuttle mechanism for sewing machines
IPC: D05B57/14
Filed: 1958-12-29
Abstract: 872,822. Sewing machines. SINGER MANUFACTURING CO. Dec. 29, 1958 [Jan. 9, 1958], No. 41818/58. Class 112 A sewing machine shuttle body comprises a beak, a heel, a back wall having a curved edge, and a side wall the internal surface of which is part-cylindrical, which has one of its boundaries co-extensive with said curved edge, and which merges adjacent said heel into a rear, loopexpanding wall. The body is designed to be produced by moulding or casting from plastic or metal. The shuttle body has a part-circular bearing rib 34 which terminates at its leading end in a looptaking beak 68 and at its trailing end in a heel 71. Rib 34 is joined to a side wall 72 by a sloped, continuous front loop-expanding wall 67 and a sloped, rear loop-expanding wall 58 formed with a pair of cavities 91 and 92. The inner edge 56 of wall 58 is co-extensive with a flat back wall 51, from which extends forwardly a post 52 for journalling the bobbin case. The leading end of wall 72 is cylindrical and is concentric with rib 34 and post 52. The trailing end of wall 72 continues as a cut-away or bevelled portion 74 which merges with wall 58 adjacent the heel 71. At the junction of walls 67 and 72 is a flat, thread-controlling surface 75 which forms a lip 76 overhanging wall 72. Forward of the back wall 51 is a needle-clearance flat 64 formed with a cavity 93. The side wall 72 extends forwardly to form a needle guard wall 73 which slopes back to a throat 69 under the beak 68. The post 52 may be attached to the body. The throat 69 may be provided with a metallic insert.
Patent GB-1155577-A (GB)
Title: Shaft Position Encoders
IPC: H03M1/00
Filed: 1966-09-20
Abstract: 1,155,577. Shaft-encoders. UNIMATION Inc. 20 Sept., 1966 [11 Oct., 1965], No. 42009/66. Heading G4H. A shaft encoder comprises low-speed and highspeed code discs 12, Figs. 7 and 14, Fig. 6, suitably geared together so that the high-speed disc 14 makes a complete revolution during a unit change of the low speed disc 12, sensing devices for the discs providing a shaft-position code, the sensing of the low-speed tracks being controlled by single-turn spirals 14a-1 to 14a-8 on the high-speed disc 14 so that the signal changes abruptly from one code bit to the next. The two discs overlap as shown in Fig. 3, and the eight spirals 14a-1 to 14a-8 cross the eight tracks of disc 12 at eight openings 16a in a mask 16. The ends of each spiral are off-set from each other so that at the moment when only half a bit aperture registers with the mask aperture, the passing of the ends of the spiral gives a sudden transition between "0" and "1" by covering or exposing the half bit registering with the mask aperture. The code is cyclic binary and there may be a clock pulse track 14c, Fig. 6, co-operating with a mask aperture 16c to provide gating pulses for reading out the sensed bits only at the centre of the discrete positions to be encoded. The gearing between the discs is biased by a low-torque motor to prevent errors due to back-lash. A light-level photo-cell provides a threshold signal with which all the bit signals are compared so that if more than half a bit aperture is exposed a "1" bit output is given. The driving gears for the two discs each have a series of circular apertures arranged on a circle to coincide at certain positions and a gauge rod with different sized shoulders can be engaged in the registering apertures. The rod has markings, indicating from the amount of the engagement the value of the disc settings.
Patent GB-996945-A (GB)
Title: Fluid filter provided with a column of filter rings
IPC: B01D29/37
Filed: 1963-10-25
Abstract: 996,945. Filters. J. MULLER. Oct. 25, 1963 [Oct. 30, 1962], No. 42183/63. Headings B1D and B1T. Fluid is filtered by passing first through one or more porous, resilient, tubular filter elements 14, then through a filter column 1 of flat rings 2 having radial grooves of triangular section, narrowest at the inlet ends, in one or both faces, the arrangement being cleaned by reversing the fluid flow, element(s) 14 being stretched thereby so that the pores enlarge to release solid matter. In Fig. 1, rings 2 are supported round a perforated tube 9. During normal flow (side A), element 14 is pressed against column 1, and during reverse flow for cleaning (side B) element 14 stretches into contact with retaining sheath 15. In an alternative embodiment, Figs. 6, 7 (not shown), and Fig. 8, the resilient element 14 is inside the column of rings, normal flow being from inside to out. Reverse flow causes element 14 to be stretched around a support 17 of cruciform section, whose perimeter exceeds the normal circumference of element 14. A plurality of concentric resilient elements may be provided having similar or progressively smaller pore sizes. Resilient elements may be of fabric, or porous rubber or plastics. Rings 2 are pressed resiliently together by spring 8, and, if grooves are provided on both sides, are stacked with alternate smooth rings, Figs. 2-5 (not shown).
Patent GB-850458-A (GB)
Title: Improvements in gum plastics
IPC: C08L51/00
Filed: 1958-12-31
Abstract: A composition characterized by the transmission of at least 50% of the incident radiation of about 7000   through a layer 1/16 " thick comprises a blend of a resinous component which is polymethyl methacrylate or a copolymer of methyl methacrylate and styrene containing at least 40% by weight of the former, and a graft polymer which is the polymerization product of styrene, methyl methacrylate or a mixture thereof in a latex of polybutadiene or a rubbery copolymer of butadiene with up to 40% by weight of a mono-olefinic monomer, the ratio of the monomeric material to the butadiene polymer being at least 0,1:1 and the relative amounts of the graft polymer and the resinous component being such that the butadiene polymer comprises from 15 to 35% by weight of the mixture.  Rubbery copolymers specified are those of butadiene with styrene, alpha-methyl styrene, vinyl toluene, chloro-styrenes, acrylonitrile, ethyl acrylate, methyl methacrylate and diethyl maleate and fumarate. A method is described by means of which various specified graft copolymers are prepared.  Specifications 726,583, 744,455 and 749,494 are referred to.
Patent GB-1527894-A (GB)
Title: Methods of manufacturing electronic devices
IPC: H01L21/3213
Filed: 1975-10-15
Abstract: 1527894 Semi-conductor devices MULLARD Ltd 15 Oct 1975 42223/75 Heading H1K In a method for forming closely spaced conductive layers on a semi-conductor substrate 1, apertures 7 are formed through a polycrystalline semi-conductor layer 5 formed on the substrate 1, Figs. 1a, 1b; a material treatment is effected on the layer 5 at a side wall of the aperture 7 in the presence of a masking layer 6 to convert a strip portion 8 of layer 5 into material insoluble in an etchant specific for the remainder of layer 5, Fig. 1c; the masking layer is removed by using the specific etchant to remove the remainder of layer 5 to leave strip of material 9 on the substrate 1, Fig. 1d; a conductive material 11, 12 is deposited on strips 9 and on the substrate 1, Fig. le. The strips 9 and conductive layers 11 may then be removed to leave conductive material 12 as spaced surface electrodes, Fig. If. Also, an insulating layer comprising either a SiO layer (23), Fig. 2a (not shown), or a SiO layer 3 and a Si 3 N 4  layer 4 may be provided on the substrate surface. Suitable material treatments to apply for converting layer 5 to strip portions 8 are oxidation, impurity diffusion, or inclined beam ion-implantation. Examples of the application of the method are to the formation of electrodes in a two-phase or four-phase CCD, or to the formation of interdigitated electrodes in planar transistors and IGFETs.
Patent GB-887444-A (GB)
Title: Improvements relating to dartboards
Inventor: ROBINSON HERBERT OSWALD
IPC: F41J3/00
Filed: 1959-12-11
Abstract: 887,444. Dartboards. SALTER Ltd., THOMAS. Aug. 8, 1960 [Dec. 11, 1959], No. 42265/59. Class 132(3) A dartboard comprises a metal rim 1 integral with which are two eyelets formed by raising portions 3 of the rim between parallel slits, the two ends of a wire handle or hanger 4 being secured to the rim by passing an approximately circular portion 5 at each free end of the handle through the eyelets and closing the portions.
Patent GB-923363-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/08
Filed: 1960-12-08
Abstract: 923,363. Sets. TELEFONAKTIEBOLAGET L.M. ERICSSON. Dec. 8, 1960 [Dec. 8, 1959], No. 42365/60. Class 40 (4). In a telephone sub-set in which a pivoted cradle operates a set of contact springs when the handset is offhook, the spring for restoring the cradle also serves to hold the contact spring assembly in position. The invention is described as applied to a sub-set, as disclosed in Specification 921,292 in which the components are fixed to a base-plate without the need for nuts, bolts, screws &c. The spring assembly 8 (Fig. 5) has a lower lug 11 which co-operates with a slot 7a in the base-plate 2 and screws 10 (for holding the assembly together) co-operate with the sides of a recess 6 (Fig. 1) in the cradle frame to prevent relative movement therebetween. Spring contacts operating arm 12 passes through recess 4 (Fig. 1) and engages a suitably shaped slot 23 (Fig. 8) in the cradle lever 22. A spiral spring 20 (Fig. 10) is then hooked on to lever 22 at notch 27 and to spring assembly 8 at notches 16, 17. Thus, when the handset is on hook, lever 22 is depressed, spring 20 is tensioned and operating arm 12 does not affect the contact springs. In the off-hook position, lever 22 rotates upwards under the influence of spring 20 and at the same time it pulls with it arm 12 to operate the contact springs. The spring assembly may be protected by a plastic box 29.
Patent GB-1160084-A (GB)
Title: Improvements in or relating to Fluorocarbon Polymeric Matrices
IPC: H01M50/426
Filed: 1966-09-23
Abstract: 1,160,084. Fuel cells. LEESONA CORP. 23 Sept., 1966 [30 Sept., 1965], No. 42462/66. Heading H1B. [Also in Division C3] A hydrophobic polymeric matrix having preselected wettable characteristics comprising a continuous phase of sintered fluorocarbon polymeric material having a series of integral interconnecting pores and a discontinuous colloidal mineral phase deposited in said pores, said mineral phase being uniformly arranged from major surface to major surface of said matrix can be used in a fuel cell for retaining an aqueous electrolyte or as a support in electrode construction. In the electrode construction, one surface of a thin sheet of the matrix is coated with an activating material, such as platinum black, and the polymeric material surface is maintained in contact with the fuel gas, with the activated surface being in contact with the electrolyte.
Patent GB-1022095-A (GB)
Title: A process for rendering organic fibrous material water-repellent
IPC: D06M13/513
Filed: 1964-10-21
Abstract: Fibrous organic material is rendered waterproof by treatment with a vaporous alkyl or fluoroalkyl dimethylamino silane at a temperature of 50-175 DEG C.  The organic material may be cotton, wood, paper, rayon, linen, wool, silk, polyamide, polyester, polyacrylonitrile, vinylchloride-vinylidene chloride, or polypropylene.  The silane may be methyl tris-dimethylamino, vinyl tris-dimethylamino, decyl tris-dimethylamino, hexenyl tris-dimethylamino, di ethyl bis-dimethylamino, dimethyl bis-dimethylamino, dibutyl bis-dimethylamino, decylmethyl bis-dimethylamino, trifluoropropyl tris-dimethylamino, 3, 3, 3-trifluoropropylmethyl bis-dimethylamino, heptafluorononyl tris-dimethylamino, or bis-trifluoropropyl bis-dimethylamino silane.  It may be vaporized in nitrogen.
Patent GB-1240512-A (GB)
Title: A machine having at least two revolving rollers preferably embossing calenders
IPC: B26F1/44
Filed: 1968-09-12
Abstract: 1,240,512. Embossing; printing. JEAN HIEDEMANN. 12 Sept., 1968 [27 Nov., 1967], No. 43353/68. Headings B6C and B6J. [Also in Division F1] A machine provided with at least two rotatable rollers pressed against each other, at least one of the rollers being mounted in displaceable bearings co-operating with hydraulic cylinders is characterized by the presence, in the control circuit for the hydraulic cylinders, of a control cylinder comprised of two sections of different diameter having a piston operative in each section but linked together to displace fluid simultaneously from each section into conduits leading to the corresponding hydraulic cylinders. The piston dimensions and control cylinder diameters are chosen to provide equal volumes of fluid to each hydraulic cylinder. The main circuit preferably contains an hydraulic/pneumatic double piston pressure translator, one piston surface being connected to a source of compressed air, the other piston surface being connected to the hydraulic cylinders co-operating with the rollers. The rollers may form part of an embossing or printing machine.
Patent GB-981807-A (GB)
Title: Improvements in and relating to electrical resistance elements and the like
Inventor: HOLLISTER RALPH GEORGE
IPC: H05B3/00
Filed: 1962-11-16
Abstract: 981,807. Making electrical resistances. JOHNSON MATTHEY & CO. Ltd. Oct. 17, 1963 [Nov. 16, 1962], No. 43421/62. Drawings to Specification. Heading B3A. [Also in Divisions H1 and H5] A resistance wire for a high temperature heater or an element of a thermocouple has a ceramic core. The wire is manufactured from a 3/8-inch O.D. tube of 10% rhodium-platinum alloy and having an 1/8-inch bore filled with dried powdered alumina under pressure. The ends of the tube are sealed, and it is rolled to -inch square and drawn into a wire of 0.020 diameter.
Patent GB-1077278-A (GB)
Title: A heating apparatus
Inventor: MAIOROV VITALY IVANOVICH
IPC: C07C4/04
Filed: 1964-02-21
Abstract: <PICT:1077278/C4-C5/1> Hydrocarbons are pyrolysed in an annular cracking zone defined by two concentric tubes 3 and 4 heated by radiant bodies 5b from the outside and a radiant body 6 from the inside, heated respectively by burners 5 and 5a and the hydrocarbons are preheated in a convection zone heated by the combustion gases from the burners.
Patent GB-1287264-A (GB)
Title: Improvements in or relating to hinges
Inventor: HUMPHRIES ROBERT EDWARD
IPC: E05F1/12
Filed: 1968-09-17
Abstract: 1287264 Torsion-spring hinge WILMOTBREEDEN Ltd 16 Sept 1969 [17 Sept 1968] 44159/68 Headings E2F E2M and E2A  A hinge comprises a hinge arm pivotally mounted on a bracket which, at an intermediate position, supports a torsion bar adjacent a bar end portion which forms a reaction leg engaging the arm, the bar being bent back on itself and having its other end supported in the bracket to engage the bar and retain it in engagement with the bracket at the intermediate position. The hinge described comprises, Fig. 2, an arm 5 pivoted by pin 7 to bracket flanges 4, 6. The flange 6 supports bar 8 in edge-slot 12, the bar leg 13 engaging an abutment, e.g. roller 14, on arm 5. The bar leg 18 passes through a hole in bracket lug 22 and through bracket hook 20 to retain bar 8 in slot 12. The bar leg 13 may be cranked to provide a desired torque characteristic, e.g. torque decreasing with opening hinge movement. Two such handed hinges may be used to support a vehicle boot lid, the looped bar portion 15, 16, 17 of each hinge being overlapped and held together by a resilient, e.g. rubber, bush 23, Fig. 4, through whose slots 24, 25 the respective looped portions pass.
Patent GB-1327893-A (GB)
Title: Air cushion vehicular device
IPC: B60V3/02
Filed: 1971-09-22
Abstract: 1327893 Air-cushion load-supporting device J F VAUGHEN 22 Sept 1971 [28 Sept 1970 16 Aug 1971] 44191/71 Heading B7K An air-cushion load supporting device has a base 10 and a cushion-containing assembly comprising an annular looped skirt 16 of flexible sheet material, a rigid ring-shaped plate 40 attached to the underside of the looped skirt and a resiliently deformable sealing means 18 projecting downwards from the plate. The aircushion 12 and the skirt 16 are supplied independently with compressed air through ducts 14, 54 controlled by adjustable valves 15, 55 respectively, and air is allowed to escape from the skirt via an adjustable throttling valve 58. The skirt is surrounded by an annular guard consisting of vertical walls 22, 25 carrying horizontal flanges 24, 26 which define an opening 28 through which the sealing means 18 extends and allow it to retract upwards to permit the device to be supported on the flanges when the skirt is deflated. The sealing means 18 may consist of a stack of thick rings 48 of foamed elastomer, with a wear strip 46 on the underside and with stretch resistant reinforcement rings 50, 52 between them. The edges of the wear strip are chamfered, and the outer edge is set radially inwards of the edge of the sealing means, thus reducing the noise due to vertical vibration. The plate 40 is attached to the skirt in a central region only by being bolted to a relatively narrow ring 42 on the opposite side of the skirt, so that the skirt may peel away from the plate upon increased inflation, Fig. 2A (not shown). The sealing means 18 is bonded to an annular flexible sheet 45 which has one or both of its edges bonded to the plate 40 with sufficient slackness to allow the stack of rings 48 to tilt, Fig. 5 (not shown). Alternatively, Fig. 6, sealing means 18a may consist of a stack of flexible rings 64 inflatable under the control of a valve 66. In the embodiment of Fig. 7 the skirt 16 is attached to the base 10a at its radially outside edge by means of vertical guard wall 22a, but at its inner edge it is attached to the lower edge of vertical wall 81, which together with a further wall 80 and base-plate 82 defines an annular chamber 83 which is in communication with the interior 85 of the looped skirt and receives air through orifice 87 from the cushion 12; the flow to the chamber 83 may be controlled by a feed valve (88), Fig. 7a (not shown). The plate 40 may be bonded to a sheet 94 of cloth which is stitched to the skirt 16; as the skirt is inflated it peels away from the sheet 94 in its peripheral areas and air bleed holes 89 are uncovered. When the skirt is deflated the base-plate 82 is on the ground and the annular plate 40 is pressed towards the base 10a. Therefore channels 91 are provided in the base to allow passage of air to generate the cushion, and annular ridges 92 prevent the plate 40 from being pressed flat against the base, and so allow the skirt to be inflated.
Patent GB-974892-A (GB)
Title: Polyester compositions
Inventor: JENKINS VICTOR FREDERICK
IPC: C08F283/01
Filed: 1959-12-30
Abstract: A surface coating composition comprises (A) a linear unsaturated polyester resin obtained by condensation of a glycol with both an unsaturated and a saturated dicarboxylic acid or anhydride and (B) not less than 35% by weight of the composition of a normally liquid polyallyl ether having a boiling point not less than 150 DEG C. and a viscosity not above 5 poises at 20 DEG C. and which is either (i) a partial or complete polyallyl ether of a polyhydric alcohol or (ii) a carboxylic ester of a partial polyallyl ether of a polyhydric alcohol; the composition being otherwise free of vinyl monomers. Specified polyallyl ethers (i) are triallyl glycerol, tetra-allyl pentaerythritol or sorbitol and hexa-allyl sorbitol, and specified ether esters, (ii) are the esters of diallyl glycerol with crotonic, phthalic, pyromellitic, citric and adipic acids. The compositions may also contain a peroxide catalyst, an accelerator or drier e.g. cobalt naphthenate, and an inhibitor, preferably an oxime of a C6 or lower aldehyde or ketone e.g. acetaldoxine, butyraldoxine, acetoxime, methyl ethyl hetoxime and cyclohexanone oxime. In the examples the polyester is derived from propylene glycol, maleic or fumaric acid, and phthalic anhydride or isophthalic acid and the peroxide catalyst is MEK peroxide except in Example 3 wherein cobalt naphthenate alone is used to cure the composition.  According to the Provisional Specifications (B) may be any compound containing at least two beta-gamma unsaturated ether groups which is neither too volatile or too viscous, several examples of such being given.  Specifications 928,801 and 939,939 are referred to.
Patent GB-1342976-A (GB)
Title: Automonochromatization method of x-rays
IPC: G01N23/205
Filed: 1971-09-23
Abstract: 1342976 X-ray apparatus POLSKA AKADEMIA NAUK INSTYTUT FIZYKI 23 Sept 1971 [26 Sept 1970] 44363/71 Heading H5R In a method of testing a crystal K for lattice defects, using a polychromatic X-ray beam diverging from a point or line source S 1 , a diaphragm with slit S 2  is positioned between S 1  and the crystal, and both the diaphragm and the crystal are rotationally oscillated with the same angular velocity, the diaphragm about an axis passing through S 1 , whereby Bragg's Law is obeyed throughout the oscillation for a selected wavelength, a photographic plate F being placed in the path of the beam reflected from the crystal.
Patent GB-949109-A (GB)
Title: Improvements relating to bite indicators for anglers
Inventor: HOLLOWAY FREDERICK JOHN
IPC: A01K97/12
Filed: 1961-12-12
Abstract: 949,109. Anglers bite indicators. F. J HOLLOWAY, L. F. HODGES, and B. A. A. SMYE-RUMSEY. Dec. 12, 1962 [Dec. 12, 1961], No. 44460/61. Heading A1A. A fish bite indicator having clips 2 for attachment to a fishing rod comprises a casing 1 containing two dry cells arranged in series, an electromagnetic buzzer, an electric bulb and a micro switch actuated by a bell crank lever 21 influenced by the fishing line 5. The bell crank lever 21 is pivoted on a bracket integral with one of the clips 2 and is urged away from the switch by a spring 22 adjustable by a screw stop 23. The fishing line is looped around a tapered roller 26 frictionally mounted on one end of the bell crank lever.
Patent GB-1330935-A (GB)
Title: Mixer
IPC: B02C/
Filed: 1971-09-23
Abstract: 1330935 Mixing apparatus ENTERPRISE RENE ET JEAN MORITZ 23 Sept 1971 [23 Sept 1970] 44485/71 Heading B1C Apparatus for mixing liquid and powder comprises a cylindrical body 1 into which discharges a powder supply shoot 12 and above which is a funnel-shaped part 2 wherein is a ring manifold 9 having perforations 10 which discharge liquid air to the well of the upper part. The materials are mixed by rotating helically-arranged blades 4 which may have various angles of inclination to the shaft 3, and the mixture is discharged through an annular opening 15, the width of which may be altered by exchangeable discs 13 of different sizes, to vary the residence time.