baber/WOPTO huggingface dataset:
Patent GB-669372-A (GB)
Title: Feeding sheets from a pile to a printing machine
IPC: B65H3/08
Filed: 1949-07-13
Abstract: 669,372. Feeding sheets. STAMMINGER, P. July 13, 1949 [July 20, 1948], No. 18461/49. Class 100 (i). Sheet-separators.-Sheets 2 of paper, cardboard &c. are separated from the top of a pile 1 by suckers 3, 4 which seize the middle portion only of the front edge of each sheet, and are assisted by supporting means, such as plates 5, 6, arranged beneath the front edge of the sheet and at each side of the suckers, these plates supporting the end portions of the front of the sheet and being moved with the sheet and suckers to feed the sheet on to a conveyer table A. As shown in Fig. 2, the front end of the sheet 2 has been lifted by the suckers, and air is blowing from nozzles 7. The suckers move the sheet towards the table A, and the plate 5 and plate 6 (not shown) swing upwardly under the sheet until they are substantially horizontal and assist the suckers in placing the front edge of the sheet on the table A. Two sets of nozzles 7 may be used, one for loosening the pile near the top, and the other for separating the top sheet. In the form shown in Fig. 8 the plates 5, 6 do not contact the sheet until a later stage since they are supplied with blowing nozzles, to which air is supplied, to support the sheet pneumatically at the front ends; a guide grid 11 is arranged above the sheet to guide the latter. In the form shown in Fig. 13, the swing- ing plates 5, 6 are mounted on brackets 12 operated by linkages from a cam in co-operation with the suckers. The suckers 3, 4 are fixed to a short tube 16 carried by a block 17 which is reciprocated on guide rods 18 by links 20a connected to arms fixed to a rocking hollow shaft 23. The block 17 is also given an up and down movement by a fork 20 fixed to a second rocking hollow shaft 22. The suckers are connected to a suction means through jointed tubes connected to a conduit 24. In Fig. 17, the plate 5, and 6 (not shown), are first brought into a vertical position at the front edge of the pile to prevent displacement of the sheets during the separation of the top sheet therefrom, and are then swung towards the bracket 12 to support the sheet carried by the suckers 3.
Patent GB-293042-A (GB)
Title: Improved device for coating objects with plastic material
IPC: B29C41/36
Filed: 1928-06-27
Abstract: 293,042. Fuller Lehigh Co., (Assignees of Hardgrove, R. M.). July 1, 1927, [Convention date]. Extrusion machines.-A machine for coating objects with plastic, material comprises a container for the material having an exit opening past which the objects are adapted to be moved. The invention is illustrated as applied to the coating of metal blocks 20, used in furnace walls, with a heat-conducting composition. Plastic material is delivered by gravity or compressed air from a container 26 through exit openings 38 having elongated, curved mouths 39 corresponding to the curved sides 21 of the blocks 20. The blocks are traversed beneath the mouths 39 by lugs 15 on a sprocket chain 14 and are supported by guides 16, 17, 18. The container 26 is slidably supported on guides 25 and is adjustable, to regulate the thickness of the coating, by a cam 29 pivoted on a pin 28 adapted to be located in one of a series of holes in a guide 25. The container is furnished with a hinged lid adapted to be clamped in position by a yoke, and is fitted with an air supply pipe furnished with a reducing-valve.
Patent GB-1081192-A (GB)
Title: Improvements in or relating to the mounting of high frequency piezoelectric crystals
Inventor: HAFNER ERICH
IPC: H03H9/05
Filed: 1965-05-04
Abstract: 1,081,192. Piezoelectric resonators. SECRETARY OF THE ARMY, UNITED STATES OF AMERICA. May 4, 1965 [May 4, 1964], No. 18687/65. Heading H1E. A piezoelectric resonator, e.g. a circular quartz AT or BT-cut thickness-shear resonator, is attached to annealed gold supporting leads 32 by means of gold rivets 24, 28. Holes are drilled for the rivets near the periphery of the crystal and a plated area 20 of e.g. gold applied around each hole on opposite major faces. The heads of the rivets lie against the plated areas, the shanks being provided with gold washers 26 having radial grooves 31. The gold wire 32 is attached to the shanks of the rivets by heat and pressure which distorts the end of the shanks and compresses the washers. Air escapes from the holes through grooves 31. The remote ends of the gold wires are attached to a pair of molybdenum pins extending through the base of a crystal holder. The crystal plate is provided with central electrodes having radial extensions which cover the heads of the rivets.
Patent GB-940163-A (GB)
Title: Method of preparing substantially cobalt-free ferrite material
IPC: C04B35/26
Filed: 1961-05-24
Abstract: 940,163. Magnetic compositions. AMPEX CORPORATION. May 24, 1961 [June 10, 1960], No. 18705/61. Heading H1H. A method of preparing cobalt free ferrites includes the steps of (a) sintering a mixture of constituent materials, (b) performing a further heat treatment step to increase the oxygen content, (c) magnetically annealing the material by heating to a temperature between 200 C. and the Curie temperature, applying a magnetic field and cooling the material in the field. Manganese ferrous and nickel ferrous ferrites with square hysteresis loops may be formed, and the sintering may take place between 1150 C. and 1450 C. in an inert atmosphere, e.g. N, A, He or CO 2 . The further heat treatment step may take several forms, viz. (a) slow cooling of the material to a temperature 200-500  C. below the sintering temperature (at 200 C./ hour) optionally holding this temperature and quenching to room temperature all in the inert atmosphere, (b) quickly quenching to room temperature, reheating to a temperature between 200 C. and 500 C. below the sintering temperature and requenching all in an inert atmosphere, (c) quenching after sintering in an inert atmosphere, reheating in air to a temperature between 500 C. and 900 C. for about 15 minutes and cooling. Magnetic cores exhibiting square hysteresis loops may be formed, the magnetic field being applied by a threading wire, a solenoid or a magnet. The inert atmosphere may be N 3 , A, He or CO 2 . Specific ferrites, temperatures and field strengths are mentioned.
Patent GB-883829-A (GB)
Title: Improvements relating to machine wrapping of articles
IPC: B65B11/54
Filed: 1958-06-12
Abstract: 883,829. Cutting-out presses. DOBSON, W. F. Sept. 14, 1959 [June 12, 1958; Feb. 25, 1959], Nos. 18759/58 and 6478/59. Class 31 (1). [Also in Group XVII] A device for severing circular blanks from a web comprises an annulus 55 over which the web passes and which has a series of short slots 56 extending adjacent its inner rim, and an annulus 58 yieldingly supported from a vertically reciprocating member 61 and having a circle of downwardly directed pins 57 corresponding to the slots. As the member 61 descends, a pressure plate 59 holds the web against the annulus 55 and the pins enter the slots to perforate the web. Further movement causes the annulus 58 to be rotated slightly so that the pins partially sever the blank which is finally pressed out on to a convener 1 beneath by a plate 64 moving with the member 61. The annulus 58 is supported from a bar 60 sliding in slots 61a in the member 61 against a spring 66.
Patent GB-774511-A (GB)
Title: Improvements in and relating to the lubrication of textile fibres and textile processing machinery and the manufacture of lubricants suitable therefor
IPC: D06M15/53
Filed: 1952-07-24
Abstract: A composition for lubricating textile fibres and textile machinery comprises refined mineral oil having a Cleveland Open Cup flashpoint above 250 DEG F. and up to 50 per cent by weight, based on the mineral oil, of one or more polyethylene glycol mono-ethers or mono-esters chosen from (a) mono-ethers (other than those specified in sub-paragraph (a) of Chain 1 of Specification 750,122) of monohydric alkyl phenols or alkyl naphthols, the alkyl phenols or alkyl naphthols containing 6-30 carbon atoms in one or more and at most 4 alkyl radicles and the mono-ethers having a polyethylene oxide chain of 2-25 mols of ethylene oxide, (b) mono-ethers of saturated or unsaturated monohydric fatty alcohols containing more than 8 carbon atoms in the molecule and having their OH group on an a, b  or g carbon atom, or of sterols, or of alcholic material obtained by hydrolysing wool wax, the mono-ethers having a polyethylene oxide chain of 13-25 mols of ethylene oxide and (c) mono-esters of saturated or unsaturated fatty acids containing at least 8 carbon atoms in the molecule, or of monobasic acids occurring in wool wax or in distilled wool grease stearines or oleines and containing at least 10 carbon atoms in the molecule, or of alkyl benzoic acids containing 8-20 carbon atoms in one or at most 2 alkyl radicles, or of naphthenic acids, or of alkylated monobasic cyclic acids (or hydrogenated derivatives thereof) which occur in wood, gum and liquid rosins, the mono-esters having a polyethylene oxide chain of 13-25 mols of ethylene oxide.  The lubricating composition may also contain other specified classes of (i) polyethylene glycol mono-ethers and mono-esters, (ii) polyhydric aliphatic alcohol partial esters, (iii) alcoholic materials and (iv) fatty acids; furthermore it may contain fatty oils (which may be blown), wool fat, silica sol, coupling agents, emulsifying agents, detergents, solvents, antioxidants and emulsion stabilizers.  The lubricating composition may be applied as an aqueous emulsion, particularly when silica sol is an ingredient, and may be scoured from textile materials.  Solvents specified are cyclohexanol, methylcyclohexanol, water, methyl cyclohexanones and chlorinated hydrocarbons, while antioxidants mentioned are phenols, arylamines and quinones.  Emulsion stabilizers referred to are stearamide, sodium alginate and sodium cellulose oxyacetate. Other specified substances which may be ingredients of the lubricating composition are ammonia, soda ash, fatty soaps (e.g. triethanolamine or sodium oleate), neutral salts of sulphonated fatty oils, sulphated alcohols, alkaryl sulphonic acids, dialkyl sulphosuccinic acids or petroleum sulphonates, cellulose ethers and sodium cellulose carboxylates.  Twentyfive examples of suitable lubricating compositions are given.  Specification 743,641 also is referred to.
Patent GB-145995-A (GB)
Title: A new apparatus for the testing of magnetos, and sparking plugs, as used for the ignition of internal combustion engines
IPC: H01T13/58
Filed: 1919-07-30
Abstract: 145,995. Tumbelty, J. M. July 30, 1919. Testing and indicating.-A sparking-plug to be tested is screwed into a tubular device 1 fitted with a window 3 and connected to a small handpump 8. In using the arrangement for testing a magneto the ordinary plug is replaced by one having a rotatable and eccentrically-placed electrode.
Patent GB-282845-A (GB)
Title: Improvements in, and relating to, conveyors
IPC: B65G17/06
Filed: 1926-07-29
Abstract: 282,845. Redler, A. July 29, 1926. Endless-chain push-plate conveyers; pushplates, construction of; driving-gear; cleaning and clearing, modified for.-In an endless chain conveyer the marginal surfaces of the links and the cross-bars are chamfered to prevent material reposing thereon. The edges of each link a are chamfered as at n, Fig. 4, and one end b of the links is forked, Fig. 2. Circular holes e, g are formed in each end of the link and are cut away to form key-hole slots f, h at right angles to each other. Each cross-bar comprises a bar i, Fig. 6, preferably of the cross-section shown in Fig. 7, and cylindrical ends k of the same diameter as the holes e, g. In each end is mounted a stud l having a square head m which can enter the slots f, h. The chain is assambled by placing the solid end of a link within the forked end of another link, turning the .links until the slots are in alignment, inserting an end k until the head m is within the solid end, and then moving the links into alignment in which position the bar cannot be withdrawn. As the cross-bar can be reversed, it may be used either for digging into the material or floating on it. Alternate crossbars may be arranged with the bevels forward and rearward. The driving sprocket has two sets of teeth o, Fig. 11, each tooth of which is bifurcated at p and has front and rear faces of unequal lengths. The contact surfaces of the teeth may be recessed at q. Specifications 159,236, [Class 59, Grinding, crushing, &c.] 169.262, 225,028; 243,552. [Class 59, Grinding, crushing, &c.] ; 243,770, 244,693 and 263,501 are referred to.
Patent GB-1222576-A (GB)
Title: Method and apparatus for producing a bonded web
IPC: D04H1/45
Filed: 1968-04-22
Abstract: 1,222,576. Non woven fabric. GLASWERK SCHULLER G.m.b.H. 22 April, 1968 [22 April, 1967], No. 18948/68. Heading D1R. A web is made by moving, a plurality of warp "threads" 3, 5 in the longitudinal direction, moving two rows of holding means 18 on opposite sides of the warps in same direction, laying a transverse thread 38 in loops about pairs of holding means and bonding the warps and transverse thread together. The term "thread" covers yarns, ropes or bands which may or may not be twisted. As shown, two sets of warps are drawn from a creel 1 or warp beam, passed over rollers and grooved guides 9, 14, and over the central portion of drum 15 to transporting and adhesive-applying rollers 54, 55. The weft 35 is drawn from package 39, through rotating tube 41 and along thread guide 43. This guide 43 rotates and thereby loops thread 38 around pairs of pins 18 forming the holding means, see also Figs. 6-9 not shown. As illustrated the thread guide 43 is counterbalanced at 46, but the counterbalance may be a second rotating thread guide (not shown) for supplying additional wefts to pins 18. The pins 18 are mounted in drum 15 so that they project from the surface only between positions A and B (Fig. 1). The pins 18 are retracted and projected to their operative position by an eccentric cam and spring acting on the pins, see Figs. 4 and 5 not shown. The pins may be kept in a retracted position by a pin guide 35. Alternatively, the retractable pins 18 may interchangable with other drum end portions which have other sets of fixed spaced pins. The warps and transverse threads are lifted off drum 15 by a plate (53), (see Fig. 5 not shown). Rollers 54, 55, drum 15, thread guide 23 and tube 15 may be driven by a variable transmission from a motor 47, 48. A photosensitive stop motion may be provided to supervise the threads. Bonding agent may be applied by spraying nozzles following roller 55. After bonding the web is dried and wound.
Patent GB-703194-A (GB)
Title: Improvements in excavating machines
IPC: E21B27/00
Filed: 1951-08-13
Abstract: 703,194. Loading ; load-handling machines. ALLARD, P. J. M. T. Aug. 13, 1951 [Oct 3, 1950], No. 19005/51. Classes 78 (3) and 78 (4) [Also in Group XXI] To reduce the time of the cycle of operations of an excavator, particularly a grab bucket excavator, when the tool or grab 29 is withdrawn from the excavation 42 a tray 39 is swung beneath it to receive its contents, said tray thus being swung clear of the grab to discharge said contents clear of and to one side of the machine whilst the grab is being returned into the excavation. The tray is adjustably mounted to turn about a horizontal axis 41a on a substantially horizontal arm 37, provided with a knee joint, the arm turning about a substantially vertically disposed pivot on the chassis. The tray may be duplicated on both sides of the chassis.
Patent GB-1448295-A (GB)
Title: Thiosemicarbazones
IPC: C07D213/53
Filed: 1974-05-01
Abstract: 1448295 Thiosemicarbazones SOC FARMACEUTICAL ITALIA SpA 28 April 1975 [1 May 1974] 19049/74 Heading C2C Novel compounds (I) where A is an organic or inorganic residue, preferably HSO 4 , Cl, Br, I, H 2 PO 4 , CH 3 CO 2  or PhCO 2 , are made by reacting 2-formylpyridinethiosemicarbazone or its alkali metal salt in aqueous solution with an appropriate zinc salt. Pharmaceutical preparations having antitumour action contain (I) as active ingredient and are administered orally or parenterally.
Patent GB-1041566-A (GB)
Title: Improvements in or relating to hollow metal tubes or pipes
Inventor: TAYLOR GEORGE OSWALD
IPC: F16B12/40
Filed: 1962-05-17
Abstract: 1,041,566. Furniture joints. BRITISH ALUMINIUM CO. Ltd. May 15, 1963 [May 17, 1962], No. 19111/62. Heading A4H. [Also in Divisions B3 and F2] In a method of providing a threaded end to a tube or pipe of commercially bendable metal, e.g. aluminium or alloys thereof, one end of the tube 1 is located around the tapered shank 2 of a hollow tubular member 3 to abut against an external shoulder 4a formed between the shank and a threaded portion 4, of a greater wall thickness than that of the shank, the tube being secured by deforming it into engagement with a roughened portion 7 of the shank. One or more slits 6 may be formed in the shank. A jig 8 used to facilitate assembly comprises a cylindrical body 9, location spigot 11, resilient washer 13 and a pair of dimpling screws 14. After loosely assembling the shank into the tube in the jig the base of the body 9 is hammered to force the members together and dimpling of the tube to the shank carried out by means of the screws 14. When the screws are in engagement with the tube the assembly may be rotated to produce an annular groove therein. A preferred substantially constant circular cross-section tubular member, Fig. 3 (not shown), comprises a screwed portion 33, shank 31 and a pair of spaced annular serrated or split portions 36, 37. The tube is forced on to the shank to abut a shoulder 35 and the tube wall is deformed into the groove 38 which may be filled with a sealing paint or ring.
Patent GB-1354328-A (GB)
Title: Apparatus for the production of cast metal strip
IPC: B22D11/06
Filed: 1971-06-04
Abstract: 1354328 Continuous casting JONES & LAUGHLIN STEEL CORP 4 June 1971 [30 June 1970] 19115/71 Heading B3F Molten metal is poured into a chamber formed in a downward loop 15 of a moving endless metal belt 10 and between two end pieces 68, 73, to cast a strip 22 which is continuously withdrawn, e.g. by pinch rolls (49, 50), through an upper opening of the chamber, as it solidifies against the belt 10 which is cooled by fluid (from sprays 59). The upper opening is formed by two upper rolls 11, 12 (of a number of rolls guiding the belt) from which the loop 15 depends. The plane of the axes of the rolls 11, 12 may be above the axis of curvature of the loop 15, Figs. 1, 4 (not shown). It may be inclined, Fig. 2 (not shown). The cast strip in Fig. 1 (not shown) turns back over the chamber and the melt inlet to it. The strip may however be bent over a fulcrum roll (81), Fig. 4 (not shown). It is sheared or rolled. Instead of stationary segmental end pieces 68, 73 (made of refractory material or the same metal as that cast and backed by rings 69, 70 rotated by the belt 10) there may be rotated discs comprising metal shells with refractory lining (57). Each disc (33, 34) may be supported by a rotatable shaft (37) and heated. Alternatively, one disc (65) may have a central aperture (66) for the introduction of a melt inlet launder or pipe (67) and be heated by a burner (84), protruding through a similar aperture in the other disc, to conserve the melt bath heat. The belt (10) in this case is driven by one or more rolls which support the apertured discs (65) and have grooves (77) which engage disc flanges (78) (confining the belt) or by at least one roll which merely guides the belt. In the embodiment shown, the belt 10 is driven by one or both supporting rolls 11, 12. The loop 15 may be supported from beneath by auxiliary rolls. There is a movable roll (31) for maintaining belt tension and another (30) for moving the belt transversely to establish its track.
Patent GB-266608-A (GB)
Title: Improved method and apparatus for testing electrical insulators
IPC: G01R31/12
Filed: 1926-07-31
Abstract: 266,608. Austin, A. O. July 31, 1926. Detecting faults.- The dielectric strength of an insulator is tested at a potential difference greater than that at which a flashover would normally occur by supplying charging-current at intermediate potentials to points spaced apart between the points of application of the test voltage. Fig. 1 shows an insulator having a metal flange 1 attached to the insulating body 2 by which it is normally attached to the cover of a transformer or oil switch, the end 5 being immersed in oil. When tested in air, therefore, flashing- over takes place at a lower pressure than under working conditions. In order to permit a higher test pressure in air to be applied between the flange 1 and the insulated conductor 3, rings 8, 9, 10 are spaced along the portion 5 and are supplied with intermediate voltages regulated by means of condensers 12 in series across the secondary winding of the testing transformer 6. The condensers 12 may be shunted by resistances 11. Alternatively the rings 12 may be connected to tappings on the secondary winding of the transformer, either directly or through condensers. Alternatively the rings may be connected through condensers to one terminal only of the transformer secondary winding. Fig. 6 shows an arrangement for testing an insulating shell 20, to which the test pressure is applied by means of electrodes 21, 22. Rings or sleeves 23 - - 27 are maintained at intermediate pressures either by their own relative points of a series of condensers 28 connected across the transformer secondary winding 29, or to tappings on the secondary winding, or to points on a potentiometer. The sleeves 23 - - 27 are spaced apart by insulators 30, and may be of wire screen to facilitate observation at all points. In a modification, Fig. 7, the control sleeves 36, 37 are separated by insulating members 28, 39 so proportioned as to set up the desired intermediate pressures in the sleeves due to their capacity. The members 38. 39 have metal coats 40 connected by leads 41 to the control sleeves and electrode. The control sleeves and insulating members may be connected by cement layers 42, or otherwise, and mav be adjustable. The control sleeves 45, 46. 47 below the insulator 44 under test are covered by insulating material 48, which may be in sections. The electrostatic field and the relative voltage gradient of the control sleeves 36, 37 may be affected by insulated control members 43. A similar arrangement may be employed for controlling the field below the test insulator.
Patent GB-870416-A (GB)
Title: Coating glass with metals
IPC: C03C17/10
Filed: 1959-06-04
Abstract: A metal coating is produced on flat glass (i.e. sheet glass or plate glass) by applying metal or a decomposable metal compound to the glass while it is still hot from its manufacture.  The metal or metal compound may be applied by spraying, sprinkling, roller coating or brushing.  The process is particularly applicable to the production of mirrors or reflectors by coating float glass with e.g. Al, Ag, Cu, Au or Cr, while the glass is in movement. The application of metals such as Ag and base metals may need to be effected in an inert or reducing atmosphere e.g. N2, H2 or CH4, in order to prevent oxidation.  According to the Provisional Specification, coatings may be deposited on glass of any shape e.g. a tube.