baber/WOPTO huggingface dataset:
Patent GB-735028-A (GB)
Title: Improvements in or relating to method and apparatus for handling and melting nylon to be used in molding articles
Inventor: MONTROSS EUGENE E
IPC: B29C31/04
Filed: 1952-04-02
Abstract: 735,028. Moulding polyamides. POLYMER CORPORATION. April 2, 1952, No. 8380/52. Class 87 (2). Molten nylon is fed to moulding equipment comprising a number of containers by delivery means which substantially exclude the nylon from contact with air and enable the containers to be filled in succession without interruption of the flow. Flaked or granular nylon fed from a hopper 7 is melted in a feed-screw 9 and advanced through passages 12, 12 in a massive transverse bar of metal 11 which is heated by elements 15. Each of the passages 12 communicate with a nozzle 13 with which is associated a heating coil 16 and a regulating valve 14. The nozzles fit closely in apertures 20 in the top closures 19 of a pair of containers 17. Each container comprises a tubular metal body and two closures 18, 19 which are made of a metal whose coefficient of thermal expansion is greater than that of the tube. By this means the closures may be easily removed and inserted at room temperature but when heated form a close fit within the tube. Before charging, the containers are flushed out with an inert gas and are then mounted in heating chambers 23 by means of screws 22 which rest on the upper edges of the heating chambers. Jacks 25 enable the containers to be adjusted with respect to the nozzles 13. The containers are filled alternately by suitable manipulation of valves 14. The containers may be used in the moulding operations described in Specifications 641,647 and 705,607 in which the material is either moulded directly in the container or transferred from the container to a separate mould. According to the modification of Fig. 5 the molten nylon from two screw-feeders 27 is fed through passages 30 in a massive heated metal bar 29 to a single nozzle 32. The nozzle 32 incorporates a screening device 33. In a further modification, Figs. 6 and 7 (not shown), use is made of a single nozzle having a control valve. The extruder is in this case mounted upon a pivot which enables the nozzle to be brought into engagement in turn with a number of containers 17 mounted in a common heating chamber. Specification 735,029 also is referred to.
Patent GB-694987-A (GB)
Title: Process for making transducer devices having bonded elements
IPC: H01B3/44
Filed: 1951-04-11
Abstract: A transducer device has an electromechanically sensitive element one surface of which is secured to another similarly shaped surface by applying to at least one of said two surfaces a partially polymerized bonding material dispersed in a polymerizable liquid solvent material, placing the two surfaces one against the other with the introduction therebetween of a polymerization catalyst, and polymerizing at a temperature below 90 DEG  C.  The bonding material may be a partially polymerized ethylene glycol or diethylene glycol maleate, with which may be associated a proportion of a glycol ester of a saturated polybasic acid, e.g. sebacic acid.  The polymerizable liquid solvent may be styrene or diallyl phthalate.  The catalyst may be benzoyl or lauroyl peroxide, preferably used in combination with an accelerator such as cobalt naphthenate, and in a preferred process the bonding material is applied to one of the two surfaces to be bonded together and the catalyst to the other. Specification 318,934, [Class 40 (v)], is referred to.
Patent GB-1409989-A (GB)
Title: Fluidic assembly incorporating a thermal expansion and contraction compensator device
IPC: F15C1/06
Filed: 1974-02-25
Abstract: 1409989 Temperature responsive elements AUTOMATIC SWITCH CO 25 Feb 1974 [30 July 1973] 8406/74 Heading G1D [Also in Division G3] A thermal element, e.g. for use in fluidic apparatus (see Division G3), for compensating for thermal expansions and contractions of assembled layers of dissimilar materials, comprises a frustoconical bi-metallic washer having its concave wall defined by the metal having the higher coefficient of thermal expansion, whereby the washer tends to flatten with increases in ambient temperature. A stack of these washers may be used. The low coefficient layer may be nickel and iron and the high coefficient layer may be nickel chromium steel. The thermal element may instead be of rectangular form and arcuate.
Patent GB-1207898-A (GB)
Title: A device for connection in a drill string
Inventor: NEWMAN JAMES LEE
IPC: E21B31/107
Filed: 1968-02-21
Abstract: 1,207,898. Drilling. DYNAMIC DRILLING TOOLS Inc. 21 Feb., 1968, No. 8453/68 Heading E1F. A mechanical device - e.g. a jar for connection in a drill string has a mandrel 12 with portions 30 and 42 of the same diameter slidably and sealingly fitting within portions 54 and 76 of housing 10 so that an annular chamber is formed therebetween of constant volume as the mandrel slides within the housing. The chamber is filled with oil and sealed from both the bore of the mandrel and the outside of the housing. In the chamber the mandrel has a sleeve 34 which is keyed thereto and has circumferentially extending lugs 106-109 and longitudinally extending lugs which mate with circumferentially extending grooves 124-129 and longitudinally extending grooves in the housing arranged so that the mandrel may rotate relative to the housing between two positions in each of which torsion can be transmitted between the mandrel and housing, and in one position the mandrel and housing can be moved longitudinally relative to one another. If the drill collars become stuck the mandrel is, rotated into the other position, the drill string is tensioned or compressed and is then rotated in the opposite direction to allow the mandrel to move longitudinally relative to the housing to strike an upwardly or downwardly directed impact force respectively to the drill collars by the end of the mandrel sleeve 34 or skirt 28 of the mandrel respectively striking collar 54 of the housing. Metal rings are positioned on each side of O-ring seals 62 and 142.
Patent GB-600347-A (GB)
Title: Improvements in or relating to spring actuated mechanism
IPC: E05F1/10
Filed: 1946-03-19
Abstract: 600,347. Door closers. WEBBERLEY, D. J. March 19, 1.946, No. 8468. [Class 65 (i)] [Also in Group XXXII] A door closer comprises two helical torsion springs disposed one within the other, and one end of each spring is connected to an actuating member while the other ends are connected together, rigidly or flexibly. The springs f and h are anchored at their lower ends to a disc g. The upper end of spring f is anchored to a sleeve b which passes through a cover a and carries at its upper end a disc c. The upper end of spring h is anchored to an inner sleeve i carrying at its upper end a disc k. The cover is provided with a projection against opposite sides of which projections on the discs c and k normally abut. The latter projections are adapted to be engaged alternatively by a downward projection on an arm carried by a spindle which rotates in the holes o in the inner sleeve and the disc g. In a modification, means are provided for adjusting the initial tension of the springs. The inner spring may be replaced by a spiral spring or by a rubber member functioning as a spring. Specification 382,760 is referred to.
Patent GB-972496-A (GB)
Title: Handle mounting plates for metal-framed doors and windows
Inventor: SOLE GEORGE STANLEY
IPC: E05C3/04
Filed: 1961-03-08
Abstract: 972,496. Turn-bolt fastenings. WILLIAMS & WILLIAMS Ltd. March 29, 1962 [March 8, 1961], No. 8503/61. Heading E2A. A handle mounting plate for a metal-framed door, window or like closure comprises a part 3 having approximately parallel edges from which project in opposite directions at right angles to the plane of the part flanges 4, 5 by one of which the plate can be secured to the door, window or the like, while the other is provided with an aperture 14 to receive a locating boss 13 on a pivot mounting of the handle, the aperture being in the form of a slot, the length of which in a direction parallel to two parallel sides 14a of the slot 14 is substantially greater than the corresponding dimension of the boss 13 of the pivot mounting to be located therein. In another arrangement, Fig. 3 (not shown) the slot 14 extends into the free edge of the flange 5 and in a modification, Fig. 4 (not shown), applicable to both arrangements, a washer located between the nut 16 and the flange 5 has corrugations on one side which co-operate with corrugations on the flange. Alternatively or additionally, corrugations may be provided between the other face of the flange and adjacent pivot mounting part.
Patent GB-1166595-A (GB)
Title: Improvements in or relating to Piperazinyl Derivatives
IPC: C07D295/15
Filed: 1968-02-21
Abstract: 1,166,595. Aryl-substituted piperazinyl-carboxylic acid anilides. BYK-GULDEN LOMBERG CHEMISCHE FABRIK G.m.b.H. 21 Feb., 1968 [22 March, 1967], No. 8503/68. Heading C2C. Novel aryl-substituted piperazinyl-carboxylic acid anilides having the general Formula (I) in which R 1 , R 2  and R 3 are H, alkyl of up to 5 carbon atoms inclusive, alkoxy of up to 5 carbon atoms inclusive, allyloxy, an aralkoxy or cyanoalkyl radical whose alkyl radical has up to 6 carbon atoms inclusive, or R 1  and R 2  together are -O-Alkylene-O-,A is an unbranched or branched, saturated or unsaturated divalent aliphatic radical of up to 7 carbon atoms inclusive which is unsubstituted or substituted by hydroxy, alkoxy of up to 3 carbon atoms inclusive, alkyl of up to 3 carbon atoms inclusive, aryl or aralkyl, Y is H, an alkyl radical of up to 5 carbon atoms inclusive or an aryl radical substituted by alkoxy or halogen, Z is an alkyl or alkoxy radical of up to 5 carbon atoms inclusive, halogen, nitrilo or trifluoroalkyl, and X is halogen, nitro, trifluoroalkyl, nitrilo, sulphonic acid, sulphonamido, carboxy, carbalkoxy, carboxamido, N-carboxylanilino or the 4 - carboxylamino - benzosulphonamido (1) group are prepared in a process which comprises reacting a carboxylic acid anilide of the general Formula (II) wherein R 1 , R 2 , R 3 , X and A have the meanings indicated above and Hal is halogen at a temperature from 10‹ to 150‹ C. with an aryl substituted piperazine having the general Formula (III) in which Y and Z have the meanings indicated above, in the presence or absence of an auxiliary base which does not react with either reactant, and separating the resultant aryl-substituted piperazinyl-carboxylic acid anilide. 3 - Chioropropionic acid - (2 - suiphamyl - 4,5- dimethoxy) anilide is obtained from 6-amino- 3,4-dimethoxybenzene sulphonamide and 3- chloropropionyl chloride. 6 - Amino - 3,4 - dimethoxybenzene sulphonamide is obtained by reduction of 6-nitro-3,4-dimethoxybenzenesulphonamide with Raney nickel/hydrazine hydrate in a methanol-tetrahydrofuran mixture. Intermediates of Formula (II) where X is halogen are prepared by treating the corresponding compound where X is H with sulphenyl chloride or bromine and glacial acetic acid. Intermediates of Formula (II) where X is H are prepared by treating the corresponding aniline with a halo-acid chloride. Intermediates of Formula (II) where X is a nitro group are prepared by nitration of the corresponding compound where X is H with nitric acid and glacial acetic acid.  Pharmaceutical compositions having sedative, neuroleptic, anticonvulsive, analgesic, antihistaminic, antiiserotonic and bloodpressure-lowering effects and containing arylsubstituted piperazinyl-carboxylic acid anilides defined above, are administered orally, intraperitoneally, intravenously, or intramuscularly in association with a pharmaceutically acceptable carrier.
Patent GB-595085-A (GB)
Title: Box for face-powder
IPC: A45D40/18
Filed: 1945-04-06
Abstract: 595,085. Boxes. RADO, L. April 6, 1945, No. 8509. [Class 18] A face powder box has a hinged lid 4 provided-with a mirror 6, the lid having a double wall and forming a compartment in which the mirror slides. The mirror is cleaned by a piece of felt or velvet arranged at the outlet to the compartment. In its extreme outward position, the mirror can be turned angularly with respect to the lid.
Patent GB-910363-A (GB)
Title: Attachment guiding device for sewing machines
IPC: D05B3/24
Filed: 1961-03-08
Abstract: 910,363. Sewing-machines. SINGER MANUFACTURING CO. March 8, 1961 [March 11, 1960], No. 8517/61. Class 112. A sewing-machine throat plate, raised above the work-supporting surface, is surrounded by an annular member the bottom surface of which rests upon the work-supporting surface, and the top surface of which is curved upwardly from the bottom surface to the level of the throat plate. The annular member is employed in conjunction with an arrangement similar to that described in Specification 808,356, in which a throat-plate 24 is engaged with respective slots 36 formed in a pair of plungers 32. Pins 38, slidable in the plungers, are adapted to raise the latter and the throat plate from the level of the work-supporting surface 17 for ordinary stitching, to a position in which the feed dog 22 is masked for darning or embroidery. In its raised position the throat plate may be surrounded by an annular member 51 which rests on surface 17 and has a curved outer edge 59. To fit member 51, a sliding plate 43, affording access to the looptaker 46, is drawn outwardly to the dotted line position and member 51 is placed on the throat plate in the dotted line position and is slid forwardly to the full line position when lugs 56 on member 51 enter a recess 57 in the throat plate. Plate 43 is then pushed inwardly till its inner edge 66 engages a corresponding shoulder 67 on member 51 to force the lugs 56 into the recess 57.
Patent GB-511802-A (GB)
Title: Improvements in or relating to bearings for shafts of grinding machines
IPC: F16C35/10
Filed: 1938-03-19
Abstract: 511,802. Grinding. BLACK & DECKER, Ltd., and McCARTNEY, F. W. March 19, 1938, No. 8534. [Class 60] [Also in Group XXXIV] A bearing for a shaft of a grinding-machine comprises, for the grinding-head, a cradle 10 supporting a cylindrical housing 11, clamped in position by bolts 14, each end of the housing having therein a groove 15 receiving a split ring 16 acting as a shoulder. The grinding- wheel shaft 17 runs in two plain bearings 18, formed of self-lubricating metal compound, and provided with a cylindrical external surface 19 and part-spherical surfaces 20 at its ends. Each bearing is supported in a mounting, which may be integral with the housing, or, as shown, separate and formed in two parts 21 slidable axially in the housing and provided with a partspherical or conical surface 23 on which the surfaces 20 seat, whereby movement of the bearings due to lack of alignment of the shaft. 17 is permitted. The parts 21 are urged against the shoulders 16 by a spring 24, and axial movement of the shaft is prevented by a flange 25 thereon, which bears against one of the bearings, a washer 26 being interposed between the other end of the bearing and a pulley 27 on the shaft. The grinding-wheel is carried by a flanged bush 29 mounted on the shaft. In a modification, for the chuck spindle, the bearings have partspherical surfaces at their outer ends engaging with conical surfaces in the housing, the bearings being urged apart axially by a spring. A spring also is provided between the rear bearing and a thrust bearing engaging a collar on the spindle.
Patent GB-642799-A (GB)
Title: Polymerization of 4-vinylcyclohexene dioxide
IPC: C08G59/24
Filed: 1948-03-24
Abstract: Hard, clear, colourless, thermosetting solids are obtained by polymerizing 4-vinyl cyclohexene dioxide in the presence of boric acid.  Polymerization, which proceeds through the gel stage, is effected at 20-150 DEG  C. and the concentration of boric acid should be at least 0.0002 per cent, preferably 0.0005-0.001 per cent of the monomer.  The polymer may be coloured by adding a dye to the monomer before polymerization.  Specification 642,800 is referred to.
Patent GB-185147-A (GB)
Title: Improvements in or relating to punching apparatus for use in connection with the coupling and splicing of driving and other belts, belting and the like
IPC: F16G3/00
Filed: 1921-03-23
Abstract: 185,147. Cowburn, S. E., Chadwick, C., and Cowburn, O. March 23, 1921. Reciprocating-punch machines.- Relates to machines for punching the ends of leather belting to be joined by a wire spiral, and consists in means for punching the holes at an angle in order to allow fcr the lead of the spiral. Punches 14 are carried in a lead 8 vertically reciprocated in guides 9 from a hand-lever 12. A stationary block 16 forms the die-plate and is provided with an inclined aperture 17 into which a belt 18 is inserted and holes successively made by the punches 14. Beneath the die-plate a block 20, depressed against springs 21 by projections 22 engaging the head 8, co-operates with a grid 27 for flattening the wire spirals after the belt-ends are joined. An adjustable edge-stop is provided for positioning the belt.
Patent GB-951588-A (GB)
Title: Improvements in electrical contactors and circuit breakers
IPC: H01H9/44
Filed: 1959-03-14
Abstract: 951,588. Air-break switches. H. T. BALDWIN. June 14, 1960 [March 14, 1959], No. 8907/59. Heading H2B. In a circuit-breaker or contactor having the or each set of contacts in a separate substantially closed arcing-chamber, the walls of the chamber consist, at least partly, of magnetic material insulated from the contacts and closely surround the path of the arc. The term " closely surround " is used to set out that a compromise is achieved between the desired limitation of the volume of air enclosed and the proximity of the walls to the arc path. In Figs. 1 and 3, a three-phase circuit-breaker has moving contact bridges 4 with ends carrying contacts 3 in D-section arcing chambers into which fixed contacts 1 project. Each chamber is formed by a magnetic U-shaped member 15 having its outside exposed to the atmosphere, retained between top and bottom plates 18, 17 which are parts of insulating casings 25 or 26 which are bolted together and retain between them slidable members 5 carrying the movable contact bridges 4 and having walls 16 which. substantially close the arcing chambers. The fixed contact 1 is surrounded by magnetic ring 19 to assist the blow-out effect. The arcing chambers of one phase may be interconnected through the space in the member 5 enclosing the contact biasing spring 7. For higher current ratings an alternative arcing-chamber shown in Figs. 5 and 6 has an additional magnetic member 37 which is inside the chamber but is shorter than the member 15 so that it is spaced from the contact 1 and does not form a current path on arcing thereto. In Fig. 7, a chamber, for still higher current ratings, has its fixed walls formed by alternate plates 42, 43 of insulating and material respectively, the latter plates projecting closer to the arc path so as to form air pockets 45.
Patent GB-885564-A (GB)
Title: Improvements in or relating to signal receiving circuit arrangements
IPC: H04J1/14
Filed: 1959-03-16
Abstract: 885,564. Electric signal transmission circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 16, 1959 [March 21, 1958], No. 9069/59. Class 40 (4). In an arrangement in which the same amplifier is used for speech signals and higher frequency supervisory signals, arrangements are provided for reducing the amplitude of the supervisory signals applied to the amplifier to avoid distortion of the speech signals. As shown, amplifier I amplifies both speech signals applied at terminals 2, 3 and high-frequency supervisory signals applied via a narrow band pass filter 6 including a tapped down inductance 7. Speech signals emerge from the amplifier,at 11, 12 and the signalling frequencies are accepted by the series resonant circuit 9, 10 and applied via the parallel resonant circuit 14, 15 to the rectifier 16 whose output operates the signalling relay 17. The D.C. output from the rectifier 16 overcomes the back-bias on the diodes 19, 20 which thus shunt the output of the filter circuit so reducing the signal input to the amplifier 1 to avoid overloading the latter and so distorting the speech signals. The consequent reduction in D.C. to the relay 17 is delayed by the presence of the inductance 18, so as to avoid impulse distortion. However, in order to avoid overload of the amplifier 1 during this delay period a biased diode 23 is arranged to conduct on alternate half-cycles to damp the output of the filter circuit.
Patent GB-1222525-A (GB)
Title: Formed articles providing a decorative effect
Inventor: HENGSTENBERG WERNER RUDOLF
IPC: C08F283/01
Filed: 1968-02-26
Abstract: 1,222,525. Moulding decorative articles. W. R. HENGSTENBERG. 26 Feb., 1968, No. 9100/68. Heading B5A. Decorative articles of transparent synthetic resin having a plurality of irregularly oriented internal cracks are produced by admixing a curable resin mixture with a catalyst and optionally with an accelerator and curing the mixture at elevated temperatures in a mould. The catalyst and the accelerator are added in excess amounts and the formed article on reaching a gel state permitting handling thereof is at least partially freed from the moulds whereby the resulting cracks which are initially open toward the outer surface, close themselves at least on the outer surface upon cooling of the article. The article in the gel state may be partially freed from the mould by partially removing the formed article or alternatively an elastically yielding mould adapted to contact continuously the formed article and which becomes permeable to gases when heated may be used. The curable synthetic resin mixture may be a mixture of polymerizable unsaturated polyester and at least one copolymerizable monomer e.g. styrene, a cobalt salt and accelerator, the mixture being cured by adding an excess amount of unorganic peroxide or hydro peroxide as the catalyst. Finely divided crystalline material may be suspended in the curable resin mixture, and may be inorganic or organic e.g. citric acid. Pigments preferably aniline dyes may also be added. When using rigid moulds the removal of the formed article may be facilitated by lining the inner walls of the mould with a resinrepelling foil or film e.g. aluminium foil or plastics foil. The surface of the formed article may be finished by coating after removal from a first mould with an additional moulded layer of preferably identical resin in a second mould also lined with a resin-repelling foil or film. The articles may be mechanically machined or processed e.g. by boring, turning, milling or polishing and used for e.g. letter-weights, candlesticks, lamp or clock housings, bases of table lighters, jewel-boxes and cigarette, tobacco containers or parts thereof.
Patent GB-1042713-A (GB)
Title: Method and apparatus for the protection of a centrifugal compressor
IPC: F04D27/02
Filed: 1964-03-04
Abstract: 1,042,713. Centrifugal compressors. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. March 4, 1964 [March 6, 1963], No. 9220/64. Heading F1C. [Also in Division G3] A method or apparatus preventing surge in a centrifugal compressor comprises a compressor 1 which delivers through a cooler 4 and condensate trap 5 to an outlet pipe 8 and a valve 10 controlling a by-pass 9. The pressure at the outlet (or inlet) is measured at 13 and the flow in the outlet (or inlet) is measured as the pressure drop across an orifice or Venturi 11. The flow and pressure signals are fed to and compared in a proportional controller 15a having a narrow band and a proportional-integral controller 15b having a wider band. The output of the two controllers are fed to a relay 16 which provides an output to control the by-pass valve 10. The relay 16 transmits a signal which represents the larger signal of the controllers 15a or 15b in the sense of opening the valve 10.