baber/WOPTO huggingface dataset:
Patent GB-1090980-A (GB)
Title: Razor blade
IPC: B05D3/02
Filed: 1965-01-26
Abstract: A safety razor blade has on its cutting edge an adherent coating consisting essentially of a fluorocarbon polymer melting between 310 DEG C and 332 DEG C and having at 350 DEG C a melt flow rate from 0.005 to 600 grams per ten minutes (as determined by a modified A.S.T.M. method which is described), the coating being in situ by heating above its melting range and having a thickness from 0.1 to 0.3 micron throughout at least a major part of the zone extending from the ultimate edge for a distance of about 50 microns.  The blade may be of carbon steel or stainless steel.  The curing step may be performed in an inert or reducing atmosphere or in vacuo. The polymer may be applied as an aqueous or non-aqueous dispersion by dipping or spraying, preferably by electrostatic spraying.
Patent GB-130280-A (GB)
Title: Improvements in Soles for Boots, Shoes or Sandals.
Inventor: BUCKLAND VIRGOE
IPC: A43B13/12
Filed: 1919-02-12
Abstract: 130,280. Buckland, V. Feb. 12, 1919. Soles.-A boot sole comprises top and bottom layers A, D of wood, and one or more intermediate layers B, C of canvas, rubber, leather, or like flexible material, the top layer being provided with a number of oblique saw-cuts E. Specification 110,518 is referred to.
Patent GB-668497-A (GB)
Title: Improvements in or relating to a straightening mechanism for attachment to a cold header or like machine
IPC: B21D3/05
Filed: 1950-02-10
Abstract: 668,497. Straightening; forging. NATIONAL MACHINERY CO. Feb. 10, 1950 [March 15, 1949], No. 3459/50. Class 83 (iv). A rod straightening mechanism for use in conjunction with a cold header or similar machine operates out of phase with the feeding mechanism to equalize the load on the machine. The rod 17 is fed from a reel 16 through starting rolls 26, 27 rotated by an electromotor 28-over a grooved anvil 31 and through intermittentlyrotated feed rolls 20, 21 against an adjustable abutment. It is then sheared to length and transferred to the cold header. The rod gripped between the rolls 20, 21, 26, 27 is straightened by a roll 37 on a lever 33 swung anticlockwise by a shaft 44 driven from the cold header when the header slide is moving rearwardly.
Patent GB-138648-A (GB)
Title: Improved process of vacuum melting and refining metals and alloys
IPC: H01J19/30
Filed: 1920-02-05
Abstract: 138,648. Heraeus Ges., W. C. Jan. 11, 1918, [Convention date]. Molten metals, removing occluded gas and other impurities from by exhaustion.-Metals and alloys are melted in a gas-tight electric furnace under a high degree of vacuum and constant temperature until no increase of pressure is observed, and the metal is free from gas. The treatment may be effected in two or more stages, in which case the respective temperatures in all the stages are maintained constant. Spongy and powdered metals may be converted to a coherent state, and metallic impurities such as sodium and zinc may be removed from copper, nickel, and other metals.
Patent GB-513391-A (GB)
Title: Improvements in and relating to salt-bath furnaces
IPC: C21D1/46
Filed: 1939-02-03
Abstract: 513,391. Electrode furnaces. SOC. ANON. DES MANUFACTURES DES GLACES. ET PRODUITS CHIMIQUES DE ST. GOBAIN, CHAUNY, ET CIREY. Feb. 3 1939, No. 3609. Convention date, April 14, 1938. [Class, 39 (iii)] A salt-bath furnace is provided with long, horizontal, parallel electrodes 1 and 2, and the article to be treated 3 is arranged parallel to the electrodes but is placed in the bath outside them. Convection currents circulate between the horizontally elongated hot zone between the electrodes and a similar parallel zone which is occupied by the article 3. The configuration of the electrodes in Fig. 1 is such that the convection currents are directed upon the heated article. Various forms of electrode are used, but in each instance both the electrode zone and heated zone are parallel and horizontally elongated. In the modification illustrated in Fig. 8, the electrode 2 is formed so that the end portions 2a, 2c are closer to the electrode 1 than the central portion 2b, the central portion of the hot zone is therefore colder than the end portions thereof, and the article 3 likewise is less intensely heated at its centre than at its ends. Differential heating of the parts of the zones may also be effected by forming the internal electrode by different lengths, insulated from each other, and supplied at different potentials, additional insulating screens being used for guiding the convection currents. An electrode may consist of a plurality of rod-like elements, arranged either horizontally or vertically, in such a manner as to provide a continuous, horizontally elongated, hot zone.
Patent GB-1193831-A (GB)
Title: Improved Method of and Apparatus for Deforming Sheet Material
Inventor: PUGH GORDON HAROLD
IPC: B21D53/04
Filed: 1967-01-25
Abstract: 1,193,831. Corrugating sheets. JOSHUA BIGWOOD & SON Ltd. 20 March, 1968 [25 Jan., 1967], No. 3643/67. Headings B3E and B3W. An apparatus for producing deformed portions in sheet material includes means adapted to continuously move the sheet longitudinally past a deforming station at which there are provided co-operating rotatable deforming elements and means to intermittently move said elements in position to act on said sheet at said station to deform the sheet to form therein a desired configuration of deformation which is elongated in the direction of movement of the sheet. An apparatus for carrying out the method comprises two rollers 13 and 14 supported in bearings 12 in the side members 10 of a roll stand. The lower roller 13 is driven by a motor 11 and the upper roller 14 is movable vertically in the frame towards and away from the lower roller. The lower roller comprises a shaft 15 to which the roller 13 is keyed, the roller having circumferential grooves 18 corresponding in shape to the corrugations required. The upper roller comprises an outer tubular member keyed to a shaft 19 and having deep parallel-sided grooves, in each of which is an annular member 21, the bore of the annular member being larger than the diameter of the roller at the bottom of the recesses. Above the roller 14 are brackets 26 which support rollers 24, the brackets being attached to a beam 27, connected by rods 28 to a second beam 29 which is guided for vertical movement by posts 34. Above the second beam 29, a fluid cylinder 31 is fixed on a cross-member joining the side members 10 and the piston-rod 30 of this cylinder is pivotally attached to two links 29a. Each link 29a is pivoted to the lower end of one of two short vertical links 36, the upper end of each link 36 being pivoted to the roll stand. The common pivot pin of each pair of links 29a, 36 is mounted in a block 29b which is constrained to slide along the beam 29, so that the connection between the beam 29 and the cylinder 31 is a form of toggle linkage. Operation.-A sheet to be corrugated is passed between the rolls 13 and 14 and is firmly gripped by the cylindrical surface of the rolls. The brackets 26 are then lowered so that the annular members are forced to protrude into the recesses 18 and shape the sheet by stretch-forming. The parts of the sheet between the corrugating members are held flat by the grip of the rollers. The brackets 26 and backing rollers 24 are raised periodically as the sheet passes through the machine to provide alternate corrugated and plain sections of the sheet. The forming members may be replaced by cutting discs which slit the sheet. In a modification, Figs. 5 and 6 (not shown) the upper roller comprises a tubular outer member having raised annular portions on its surface which co-operate with circumferential recesses in the lower roller.
Patent GB-975826-A (GB)
Title: Improvements relating to fluid flow control valves
Inventor: MORRIS ARTHUR KENNETH
IPC: E21D15/51
Filed: 1961-01-31
Abstract: 975,826. Valves. DOWTY MINING EQUIPMENT Ltd. Jan. 18, 1962 [Jan. 31, 1961], No. 3662/61. Heading F2V. A fluid control valve comprises fixed and movable valve members 11, 12, Figs. 1 and 2, each including an annular element of rigid material of which one element has an annular seating face 11 and the other has an annular sealing edge 42 which is engageable with the seating face to isolate a fluid outlet opening 20 from a fluid inlet opening 5 and resilient means 37 urging one annular element 38 against an abutment 39, the element 38 being tiltable on the abutment against the restoring force of the resilient means to ensure uniform engagement with the other annular element and being movable from the abutment to reduce closing shock of the valve. In the preferred embodiment, the valve is secured to the ram tube 3 of a telescopic pit-prop and the inlet 5 communicates through a tube with a pressure chamber at the base of the prop. Inlet pressure acts on a piston 19 having a diameter greater than that of the edge 42 to hold the valve closed and also acts on the rear face of the element 38 to hold it against the abutment 39. The valve is opened by manual operation of a cam 22 and includes a spring-loaded relief valve 30. In Fig. 3, the seat is provided with the movable element 138 and the closure member 112 is fluid actuated by a piston 119. A third construction similar to that of Figs. 1 and 2 is described in which the valve 30 is omitted, the cam is mounted inside the valve housing and the diameter of the sealing edge is greater than that of the balancing piston so that the valve is held closed by a loading spring until the inlet pressure reaches a predetermined value or the cam is manually operated.
Patent GB-796111-A (GB)
Title: Improvements in or relating to mechanicallyoperated electrical switch devices
IPC: H01H21/28
Filed: 1956-02-07
Abstract: 796,111. Retractive switches; snap-action switches. SQUARE D CO. Feb. 7, 1956 [Feb. 10, 1955], No. 3725/56. Class 38 (5). A mechanically-operated switch has an operating member pivoted within its casing, a spring operatively interposed between the operating member and the movable contacts, a cam pivoted on the casing and movable in either direction to engage one or other of two lobes on the cam with the operating member, and a plate member having at least one pair of opposed recesses for engagement with fixed posts, the disposition of the plate member determining the initial position of the movable contacts. As shown applied to a limit switch, the movable contact member 24 comprises an insulating piece 28 carrying bridging contacts 34, 36 and a bracket 32 which is attached to a bush 41 mounted on a stud 26. A spring 42 surrounds the bush 41 and its ends 44 extend on opposite sides of the bracket 32 and of a roller 52 carried by an operating lever 46 pivoted at 48. The lever 46 also has a roller 50 engaged by the ends 69, 70 of a return spring 39. surrounding a part of a plate 57. The bracket 32 has lugs 47, 49 engageable by latches 60, 64 pivoted at 62, 66 so that tilting of lever 46 in either direction causes stressing of spring 42 by roller 52 until one or other latch is released by the end of the lever 46, the contacts thereupon moving with a snap action to engage fixed contacts 12 or 14. The latches are each formed with a one-step surface 63 or 67 and a two-step surface 61 or 65, so that the latches can be interchanged to vary the switch characteristics. The latches may also be omitted altogether so that the switch acts without quick-action; the return spring 39 may also be omitted. The plate 57 has notched edges so that it may be placed in any one of three positions with opposite notches engaging pivots 62, 66 so as to hold or bias the contacts in any one of three positions. The lever 46 in one form has two rollers 54, 56 engageable by a cam 25 operable by external arm 23 engageable by a part of a machine, so that the lever is movable in opposite directions by the cam. In a modification, Fig. 6, the roller 52 is omitted and a larger roller 72 engages a cam 25M so that the lever is tiltable in one direction only regardless of the direction of movement of the cam; in this modification also, the plate 57M has only one position. The cam 25 or 25M is carried by a spindle 27 surrounded by a return spring 29 having ends 31, 33 on either side of a part 73 of the cam and engageable with shoulders 35, 37 on the casing 2.
Patent GB-662865-A (GB)
Title: An improved blade holder device for use in sharpening safety razor blades
IPC: B24D15/10
Filed: 1949-02-11
Abstract: 662,865. Sharpening safety-razor blades. HEATH, J. E. Feb. 2, 1950 [Feb. 11, 1949], No. 3766/49. Class 60 A holder, for sharpening safety-razor blades of the double-edged type, having a handle I, a flat portion 2 and studs 6, 7 to receive the blade and a slotted retaining member 8 is characterized by the back or outer face of the flat portion being rounded or bevelled along its longitudinal edges to provide a correct and small stropping angle when the holder is held against a stropping surface. The handle is formed from a strip of metal and the studs 6, 7, which engage the holes or slot in the blade, have annular grooves to receive the member 8 which clamps the blade against the flat portion 2. To avoid interference with the stropping action, the total thickness of the portion 2 and the member 8 is kept to a minimum while the studs 6, 7 may have rounded heads. The strop consists of a strip of leather secured to a block.
Patent GB-400051-A (GB)
Title: Improvements in or relating to brushes, particularly for shaving and like purposes
IPC: A46B15/00
Filed: 1933-02-08
Abstract: 400,051. Brushes; hand-tool handles. BACCIARELLI, P., 10, William Street, Hampstead Road, London. Feb. 8, 1933, Nos. 3882 and 14853. [Classes 19 and 61 (i).] In a brush in which the bristle holder C, Fig. 1, with a stud C<1> is retracted into a hollow handle A provided with a slotted sleeve B and a quick helical thread A<1>, a cap or nut D is provided at the lower end attached to the sleeve B and threaded with a quick pitch to the handle A. Due to the difference in pitch, the bristle head can be fully projected or retracted by not more than a complete turn. A locking effect is produced by forcing the pin C<1> against the upper end of the groove A<1>. An increased effect may be provided by an inclined offset B<2>, Fig. 5, at the upper end of the slot B<1> in the sleeve B. The cap or nut D may be fixed to the sleeve B by a pin, but preferably, an adjustable coupling is made. A boss B<3> is furnished with notches B<4> and a ball G, Fig. 1, can be inserted in any one notch to engage a corresponding notch in D<3> in the cap. A stud H with an enlarged head holds the ball Clocked. In a modification, Fig. 10, the head C is made conical to fit a conical part A<4> on the handle.
Patent GB-529235-A (GB)
Title: Improvements relating to liquid measuring and dispensing apparatus
IPC: B67D7/30
Filed: 1939-02-07
Abstract: 529,235. Dispensing liquids. AVERYHARDOLL, Ltd., and FRASER, J. Feb. 7, 1939, No. 3920. [Class 116] In liquid-measuring and dispensing apparatus of the flow-meter type in which delivery takes place through a valve-controlled nozzle by which, when the major portion of the predetermined quantity has been delivered, a check can be imposed on delivery thereby bringing into operation a mechanism which results in the automatic cessation of flow as soon as the whole of the predetermined quantity has been delivered, there is provided in or adjacent the nozzle an auxiliary metering device actuated by the liquid flow and associated with means which automatically impose the required check on delivery. In one form of nozzle, Fig. 1, the casing 6 houses a meter drum 7 which drives a shaft 13 on which is frictionally mounted a setting disc 19 with a pin 18. A shaft 13a carries a pointer 16a co-operating with a graduated scale 17 and a finger 13h adapted to engage the pin 18 to rotate the setting disc. In operation, the pointer 16a is set to the quantity required and the lever 28 operated to open the delivery valve of known construction. The disc 19 is driven by the drum 7 until one end of a rod 21 enters a peripheral notch in the disc, thereby allowing a valve 21b to close and cut off the supply except for a dribble delivery through a hole 21c. This reduction in flow brings into operation the cut-off device controlled by the indicator of the main meter as described, for instance, with reference to Fig. 4 of Specification 478,129, so that as soon as the predetermined quantity has been delivered the supply is cut off. In a modified form, the valve 21b is without the hole 21c and closing of the valve causes a complete cessation of flow until the pressure in the inlet 6a of the casing 6 operates a piston valve 32, Fig. 5, to open apertures 31a. The complete cessation of flow enables the nozzle to operate with a control mechanism as described in Specification 529,252.
Patent GB-232535-A (GB)
Title: Improvements in and relating to electrical valve amplifiers
IPC: H03F1/54
Filed: 1923-11-14
Abstract: 232,535. Priess, W. H. Nov. 14, 1923. Thermionic amplifiers.-Audio-frequency valve amplifiers for use in line telephony or in radio reception are provided with jack switches by which the telephones may be connected in the primary or input circuit or in the plate circuit of any one of the valves. The diagram shows the input terminals I connected to the first jack P<1> and to the primary coil of a transformer X. The secondary coil is connected to the grid and filament of the first valve 1, which has the second jack P<2> in its plate circuit in series with the primary coil of a transformer Y. A third jack P<3> is provided in the plate circuit of the second valve 2. The plates are supplied from the hightension terminals b. The filaments are fed in parallel from low-tension terminals a through separate rheostats FR. The transformer secondaries are connected to the negative low-tension terminal, and the normal grid potential and consequent damping of the transformers are determined by resistances H in the filament circuits. The jacks are arranged in line on a vertical panel above the three pairs of terminals, and below 'the two rheostats. A door in the upper portion of the panel provides access to the valves. The transformers X, Y may be constructed as described in Specification 234,023.
Patent GB-469722-A (GB)
Title: Improvements in rollers for endless track vehicles
IPC: B62D55/096
Filed: 1937-02-11
Abstract: 469,722. Endless - track vehicles. MOGLIA, E. Feb. 11, 1937, No. 4102. [Class 79 (i)] A resilient roller for engaging the endless track of a vehicle, is of the kind in which a rubber band 4 is inter posed between the hul rim 2 and an outer metal tyre 6, and com prises a hub 1 with lat eral cheeks 10 over lapping the rubber and extending nearly to the periphery of the tyre 6, play being provided between the cheeks and the tyre so that the latter can move vertic ally between the cheeks as guides, the outer faces of the cheeks serving also as lateral guides for upstanding members 8 on the links 7 of the endless track. The rim 2 may be integral with the hub, the cheeks 10 being bolted thereto as shown. The tyre 6, rubber 4 and a false rim 3 form a readily detachable and replaceable unit.
Patent GB-1371146-A (GB)
Title: Work-changing devices for machine tools
IPC: B23Q7/04
Filed: 1972-01-28
Abstract: 1371146 Workpiece transferring WERKZEUGMASCHINENKOMBINAT 7 OKTOBER BERLIN VEB 28 Jan 1972 4104/72 Heading B3B  A workpiece transporting device for transporting rotationally symmetrical workpieces 19 from a workpiece store, e.g. pallet 9 to a machine tool 14 or back, comprises ahorizontal transporttrack 2 which is adjustable in height on a frame 1 and which has guides 6 on which a transport slide 3 is horizontally movable, the slide 3 having vertical guides 7 on which a transport head 4 is mounted for vertical movement. The head 4 has a horizontal fixing surface (10, Fig. 2, not shown) and a vertical fixing surface (11, Fig. 3, not shown) on one of which a gripper head 12 is mounted, depending on whether the work spindle 13 of the machine tool 14 is vertical or horizontal respectively. A shaft 15 is mounted rotatably and axially slidably displaceably in the head 12 and carries a swivel arm 5 which carries at least one shaft 18 each for receiving a workpiece gripper 17, the or each shaft 18 being rotatable about and displaceable in the direction of its own axis.
Patent GB-541069-A (GB)
Title: Improvements in and relating to snap fasteners
IPC: F16B2/24
Filed: 1940-03-06
Abstract: 541,069. Snap fasteners. UNITED - CARR FASTENER CORPORATION. March 6, 1940, No. 4198. Convention date, March 11, 1939. [Class 44] A snap fastener for securing an article to an apertured support, for example securing a carpet 2 to a floor 1, comprises a semi-circular base 12 integral with a plate-like portion 11 having a stamped-out spring tongue 13 shaped to provide a shoulder making snap engagement with an edge of a rectangular aperture or slot in the floor. The free end 18 of the tongue is bent outwards to prevent it from passing through the aperture to the rear or under face of the floor. The edges 19 of the part 11 are inclined to provide a nose 20 facilitating entry of part 11 and tongue 13 if there is limited lack of registry. The device is secured to the carpet by a dished member 5 which receives the base 12 and has attachment prongs 10 passed through the carpet and clinched over. The member 5 has a central circular aperture with radial slot extensions 8 to accommodate the marginal portions of part 11.
Patent GB-470613-A (GB)
Title: Improvements in and relating to trim panels particularly for use in vehicle bodies
IPC: B60R13/02
Filed: 1937-02-12
Abstract: 470,613. Vehicle bodies; panels. BRIGGS MANUFACTURING CO. Feb. 12, 1937, No. 4215. Convention date, Feb. 15, 1936. [Class 108 (i)] [Also in Groups X and XIV] Trim panels for vehicle bodies are provided with fasteners for connecting them to a support the fasteners comprising retainer members adapted to be secured to the panel and a fastener member connected to each retainer member and arranged in a plane parallel to the face of the panel. Fig. 3 shows a fastener comprising a retainer member 42 having prongs 43 for securing it to the panel A and a channel portion 41 within which the fastener member is retained, the fastener member being shaped as shown in Fig. 4 with abutments 35, 36 and a curved portion 37. The fastener members are arranged facing outwardly on the side and bottom edges, Fig. 8, and the panel A is engaged with the side supports and subsequently slid downwardly to engage the bottom support. The top edge 33 of the trim fabric is bent over the flange 18, Fig. 5, and secured by a moulding 47 and screws 48. In a modification the fastener members point all in the same direction, say towards the bottom, and the two side series of fasteners are adapted to enter apertures 60, Fig. 12, in the side supports while the bottom series of fasteners engage the flange of the bottom support. Fig. 13 shows a combined retainer and fastener member R.
Patent GB-232728-A (GB)
Title: Improvements in or relating to flooring
IPC: E04F15/14
Filed: 1924-02-19
Abstract: 232,728. Marus, R. Feb. 19, 1924. Concrete flooring which may have a mosaic or tile facing is formed by levelling the existing foundation a and applying a waterproof paper or fabric c directly thereto or on a levelled bed of sand b, then laying an open framework of bars to divide the area into compartments which are filled with concrete to the top of the bars, or nearly so if the surface is to be faced with mosaic or tiles k. Expanded metal or other reinforcement j is embedded in the concrete. The lower part of the bars may be wood or resilient bent sheet-metal, and the top part is grooved to receive an inset e of lead or other material which will wear at the same rate as the surface. The waterproof sheet c prevents moisture from escaping while the concrete is setting. The material in anv cell mav be renewed without disturbing the remainder.