baber/WOPTO huggingface dataset:
Patent GB-1391482-A (GB)
Title: Methods of welding together two metal bodies
IPC: B23K11/14
Filed: 1972-03-23
Abstract: 1391482 Welding by pressure O A BECKER 23 March 1972 13708/72 Heading B3R In a method of welding together two metal bodies 1 and 2 at least one of the surfaces to be welded is formed with sharp or narrow linear projections 5 in Fig. 1, or 10 in Fig. 4 or alternatively a metal insert, e.g. 24 in Fig. 11 having similar projection is placed between the two surfaces, and the bodies are brought together. A welding voltage, e.g. from a charged capacitor, is applied between the bodies while maintaining a face holding them in engagement, the condition being such that the resistance to electric current in the zone of engagement causes resistance welding to take place and similar arcing between the bodies takes place thereby causing arc welding. In the embodiments shown the two bodies have plastic or other insulating coatings which are stripped from the areas where current flow is required. In Fig. 1 marginal portion 1c of body 1 has projections 5 formed by milling parallel, arched recesses 7 into the surface. Insulating tapes or strips 32 may be provided. Current is supplied by clamps 31a, 31b and pressure by block 6. Both bodies may have projections 8a formed which are set perpendicularly to one another (Fig. 3, not shown). In Fig. 2 body 1 has been embossed to provide protruding portions which are milled to form recesses 7 and projections 5, body 2 is stripped of coating 2a in corresponding parallel areas. In Fig. 5 rectangular projections 10 are formed on the embossings and roller electrodes 33, 34 are used. In Fig. 6 parallel slots are initially formed on either side of the subsequently milled recesses 7. The method may be used in butt welding, see Fig. 7, where the workpieces are supported between rollers 23a, 25a. Inserts, such as 24 in Fig. 11, can also be used for butt welding as shown, other forms of insert are insert (26, Fig. 12, not shown) in the form of a H-profile wire and insert 27 of serrated form Fig. 13. The method may also be used to seam weld parts together with electrode rollers or pressure rollers.
Patent GB-592739-A (GB)
Title: Improvements in or relating to automatic switches as used in telephone systems
IPC: H01H63/04
Filed: 1945-06-01
Abstract: 592,739. Automatic exchange switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and WOODLAND, C. R. June 1, 1945, No. 13759. [Class 40 (iv)] [Also in Group XXXVII] A wiper assembly for a rotary switch, particularly of the type used in automatic telephone systems, comprises wiper blades 10, 11 which are separate from and pivotally mounted on the wiper assembly. The blades are respectively supported at V-formed ends on long knife-edges (at the ends of the members 12, 13) which have raised portions 14, 15 at each end to prevent sideways movement of the blades. A pair of springs 16, 17 holds the blades in position by pressing on them at a point between the knife-edge and the spacing stud 18 which projects through a hole in the flat insulator 19 on which the assembly is built up. This stud maintains the wiper tips apart when they are in normal position and they are given a predetermined contact pressure against the stud whose length is such that on engagement with the fixed contacts such as 20, 21, the wiper blades are just lifted clear of the stud, thus minimising contact bounce and maintaining an even contact pressure between the blades and the contacts substantially independently of the degree of wear of the wiper tips. Since the wiper blades are readily replaceable their tips may be of comparatively soft metal to reduce wear on the fixed contacts. Electrical connection to the blades 10, 11 is on a parallel feed basis via springs 12 and 16 in parallel and springs 13 and 17 in parallel, respectively, collars 25, 26 being of metal, and external wiring terminating on tags 29, 30 which are respectively integral with springs 12, 13. In a modification (Figs. 3, 4, not shown), wiper tip vibration during vertical stepping is reduced by the cruciform shape of the blades, the wiper blades have flat pivoting surfaces, and the springs 16, 17 have spoon tips at the point of engagement with the blades 10, 11.
Patent GB-639854-A (GB)
Title: Improvements in or relating to the purification of pteridines
Filed: 1947-05-22
Abstract: A reaction mixture containing a pteridine of the formula< <FORM:0639854/IV (b)/1> wherein OH represents an amide group derived from the amino group of glutamic acid or more than one molecule of glutamic acid joined by peptide linkages, is treated with magnesium carbonate, oxide or hydroxide in the presence of water, and the aqueous solution containing the magnesium salt of the above pteridine is separated from the insoluble matter.  A water-soluble compound of a metal other than magnesium may be first added to the reaction mixture in the presence of water, the aqueous solution of the metal salt is separated from the insoluble matter and is treated with a water-soluble magnesium compound to form the magnesium salt of the above pteridine by double decomposition.  The solution of the magnesium salt may be a hot concentrated solution so that the magnesium salt precipitates out on cooling, e.g. in the case of folic acid itself, the temperature of the solution may be between 75 DEG and 100 DEG  C.  When the solution contains the magnesium salt of folic acid, the free acid may be precipitated by acidifying the solution to about pH 3.  In the examples, magnesium folate is prepared from reaction mixtures containing pteridines, and is converted to folic acid.
Patent GB-1145271-A (GB)
Title: Improvements in chiropodial orthopaedic appliances
IPC: A61F13/06
Filed: 1965-10-01
Abstract: 1,145,271. Orthopaedic appliances for the foot. A. R. FRASER. 28 Dec., 1966 [1 Oct., 1965], No. 13798/65. Heading A5R. A chiropodial orthopaedic appliance (for relieving the discomfort and assisting in the correction of retracted toes) comprises two collapsible flexible pads which are interconnected by at least one flexible duct and which contain, or are capable of containing, sufficient fluid, for example air or a liquid, to provide inflation of one of the pads. The appliance is so constructed that one pad is adapted to be applied to the plantar area of the foot and the other pad is adapted to be applied to the dorsal area of the foot so that, in operative use of the appliance and when walking, fluid is dispelled from one pad to the other pad, the pad which bears on the dorsal area, when inflated, exerting pressure on the retracted toes and thus serving both to protect and to push forward the toes. As illustrated in Figure 1, the appliance comprises inflatable pads 10 and 11 which are interconnected by ducts 12 and 13 to form an opening 14 through which the toes may be introduced to localize the appliance on the foot; Figures 3 and 4 are top and bottom plan views, respectively, of the appliance when applied to the foot. The appliance may be formed by fusing of bonding together the edges of two superimposed sheets of, for example, flexible rubber or plastics material. The edge 15 of the pad adapted to be applied to the dorsal area may be scalloped to conform to the toes. In order to facilitate passage of fluid between the pads, the pad adapted to be applied to the planar area may contain a cellular resilient cushion 16 of, for example, rubber or plastics material; in order to reduce the deflation thereof, the pad adapted to be applied to the dorsal area also may contain a resilient cushion. The pad adapted to be applied to the plantar area may be provided with a vent hole through which air may be drawn from outside the appliance; the pad adapted to be applied to the dorsal area also may include a vent hole to permit leakage of fluid from the appliance if the pressure therein becomes excessive. Either one or each pad may be subdivided. Means other than the duct(s) may attach the pads to each other to ensure proper location of the appliance on the foot, the pads being interconnected by a duct which is adapted to pass between the toes or over the side of the foot in order to provide fluid communication between the pads.
Patent GB-180324-A (GB)
Title: Improvements in means for stripping or unwinding bobbins
IPC: B65H73/00
Filed: 1922-05-16
Abstract: 180,324. Streeter, C. H., (Assignee of Pierce, C. A.). May 16, 1921, [Convention date]. Unwinding - machines.-Bobbins which are to be stripped of unvound are placed in a receptacle 2 and the yarns therefrom are wound on a rotary spindle 3, after passing through a comb 6 which obstructs the movement of any bobbins lifted by reason of the yarn not unwinding freely. The receptacle 2 has a sliding bottom 8 whereby empty bobbins may be allowed to fall into a lower compartment 9.
Patent GB-290293-A (GB)
Title: Improvements in or relating to tipping means for motor lorries and other vehicles
IPC: B60P1/12
Filed: 1928-05-11
Abstract: 290,293. Dorpe, G. van. May 13, 1927, [Convention date]. Tipping-carts.-In lorries and other vehicles for side tipping in which the tipping movement of the body is effected about a number of tipping centres consecutively used during the operation, the displacement of the body during tipping is controlled in a continuous manner by a device having elements secured to the body and chassis frame and operated externally. As shown for a vehicle arranged to tip to one side only transverse members 9 are secured to the underside of the body 1 and are provided with members pivoted at 6 adapted when the body is tipped to pass the edges of the transverse members 4 secured to the chassis. The members 4 are profiled as shown and tipping is performed by a rack 14 or equivalent means. Tipping takes place about pivot 6 until the underframe 2 of the body 1 contacts with the point 7 of the members 4 which then becomes the tipping centre until finally a roller 12 on the members pivoted at 6 contact with the members 4 when the body tips about the roller 12. An abutment member 13 prevents lateral bodily movement of the body. Rests 19 are provided having integrally therewith means 20, 21 adapted to lock and unlock the body when necessary.
Patent GB-897122-A (GB)
Title: Manufacture of large mouldings of synthetic material
IPC: B29C43/00
Filed: 1959-04-23
Abstract: In the production of large mouldings of thermoplastic synthetic materials, a mould made of granular or fibrous material with a binder, is heated above the melting point of the moulding material and completley filled with the material in molten condition, and excess pressure which is less than half the lowest normal injection moulding pressure for the material is applied to the molten material in the mould, and whilst maintaining this pressure on the molten material in the mould and in a reserve cavity, the mould is progressively cooled towards the reserve cavity until the whole moulding has solidified.  The mould may be of sand, wood fibres or asbestos fibres, bonded with cement plaster or a synthetic resin. The inner surface of the mould may be sealed with e.g. zirconium sand or a mixture of sand and water-glass, possibly combined with a heatproof paint, and/or with layers of grease, wax, graphite, metal or synthetic material.  Suitable moulding materials specified are: polyethylene, polypropylene, polystyrene, polyvinylchloride, vinylchloride mixture polymerisation products, polyamides, poleysters, polyesteramides and polycarbonates.
Patent GB-717074-A (GB)
Title: Improvements relating to parachutes
IPC: B64D17/00
Filed: 1952-06-03
Abstract: 717,074. Parachutes. THEBAULT, L. June 3, 1952, No. 13977/52. Class 4 A parachute comprises a canopy provided with a plurality of rings located intermediate the centre O and edge B of the canopy, a set of normal cords BA each having one end attached to the canopy at its edge B, and its other end to means A by which a load is supported, a set of auxiliary cords BCD each of which is joined at one end to the edge B of the canopy and passes through said rings, and a cord releasably connecting the auxiliary cords at their other ends to the load suspension means so that when the parachute opens, the load is taken by the cord EA and the cords DCB, the zone BC of the canopy being collapsed, and means for transferring the load at will to the cords AB, fully opening the canopy. In the embodiment shown in Figs. 3, 4, and 6, the cord EA takes the form (Fig. 4) of a strap 1 fastened to a load bearing hook M and passing over a pulley 2 secured to the auxiliary cords. The other end 3 of the strap passes round a flanged member 4 whose flanges 5 hold a pivot 6 mounting an eccentric 7 and a handle 8, so that the eccentric presses the adjacent portions of strap 1 together preventing movement, and the tendency of the strap to move tends to rotate the eccentric to press the portions tighter. By pulling cord 9, handle 8 rotates the eccentric, allowing cord 1 to pass round the pulley, bringing cord AB into use (Fig. 3). Pulling cord 9 recollapses portion BC of the canopy. In the case of an inert load. the device of Figs. 4 and 6 is used, consisting of a plunger 23 adapted to rotate handle 8, and operated by Bowden cable 11 attached to a rod 18 and a weight 19. Rod 18 is acted upon by a spring 16 . and is restrained by a guide 15 movable in slots 21 in the canister 13, being initially in a notch 20. When weight 19 strikes the ground, canister 13 tends to follow up by inertia, releasing the guide from the notch in slot 21. A predetermined torsional load on spring 16 clears the guide from the notch, and its compressional load operates the Bowden cable and plunger 23, fully deploying the canopy and braking descent before the load hits the ground.
Patent GB-378466-A (GB)
Title: Machine for making envelopes
IPC: B31B19/00
Filed: 1931-05-12
Abstract: 378,466. Making envelopes. MOND, A. L., 19, Southampton Buildings, London.- (Smithe Machine Co. Inc., F. L. ; 633, West 44th Street, New York, U.S.A.) May 12, 1931. No. 14033. [Class 94 (ii).] In an envelope-making machine, blanks from a stack thereof are fanned out and aligned in timed relation to the operating cycle prior to being gummed and fed through a drier in the same timed relation which also governs an individualizing mechanism at the discharge end of the drier. Blanks from a pile 10, Fig. 8, are raised by a suction device such as that described in Specification 375,025, [Group XVI], to feed rollers 13 adapted to pass on the blanks in overlapping relationship to feed rollers 14, 14a, 15, 15a, these latter depositing them on conveyer belts 16. On these conveyers, reciprocating fingers 18 engage the rear re-entrant corners of the blanks and adjust them in the required position for a gummer C to apply gum to the exposed closure flaps as the belts travel over a drum 32. The drum 32, Fig. 4, is recessed at 31 to receive a stripper member 30 adapted to bend up the centres of the blanks and compel the side flaps to rise when rollers 32a are disengaged from them. The lifting of these flaps is ensured by cam-actuated spring pickers 35 which scrape along the blanks and engage beneath the side flaps. At this point, the leading blank is adjacent a pair of conveyer chains 25 moving at a slightly greater speed. Spring fingers 26 on the links of the chains are opened out from the links by the passage of the chains over small rollers 32 and engage the side flaps, clamping them on to the chains as the chains straighten out again. The chains convey the blanks past a drying device 40, Fig. 2, and on around small rollers 43 which again cause the fingers to open out. The rollers 43 lie above a table 44 through which projects a roller 46 co-operating with a mutilated roller 45. This latter roller grips the blank as the fingers release it and draws it away from the chains 25 on to a more rapidly moving conveyer 50 having pins 51 adapted to engage, position and feed forward the blank which is thus wholly separated from the following blanks. Creasers on a roll 56 now crease the blank both longitudinally and transversely, plates J fold over the side flaps, and after a gummer K has applied adhesive to the bottom flap, folders 66, 67 co-operate with rolls 62, 63 to fold it over. Rolls 70, 71 then feed the envelope to a device such as that described in Specification 370,674, which folds down the closure flap and delivers the envelope through conveyer bands 75 to the stack 77. The various mechanisms are driven from a shaft 132 to ensure proper timing thereof and the drive of the rollers 14, 14a, 15, 15a may be varied to pass the blanks more or less quickly and thereby increase or decrease the spacing of them.
Patent GB-1537329-A (GB)
Title: Device for marking electrical wires or cables
IPC: H01B7/36
Filed: 1976-04-07
Abstract: 1537329 Marking electric cables R FEHR 7 April 1976 [8 April 1975] 14120/76 Heading B8F [Also in Division H1] A device for marking electrical wires or cables 3 comprises a sleeve which engages around the wire or cable and is provided with resilient members 6, 7 which project inwardly from the inside wall surface of the sleeve. Label elements 5 are contained within a passageway 4. The device may be made of transparent plastics material.
Patent GB-872088-A (GB)
Title: Steel manufacture
IPC: C21C5/38
Filed: 1958-05-05
Abstract: 872,088. Confining dust generated in industrial processes. DAUBERSY, J. May 5, 1958 [May 17, 1957], No. 14240/58. Class 8(2). The gases issuing from a converter, bottom blown with oxygen containing steam and/or carbon dioxide, are led to a gas holder of the constant pressure type. The bottom blown refining gas, or additional oxygen blown on to the bath from above, may be laden with a dephosphorising agent. Steam or hydrocarbon oil may be added to the gas emerging from the converter. As shown, gas from converter 2 is led to hood 4, a ring of steam jets 3 being used to prevent the ingress of air. More steam or water may be added by rings of nozzles 6 to cool the gases and to produce hydrogen by reaction with carbon monoxide. The gases then pass to heat exchanger 13, dust remover 15, and via valve 17 to gas holder 18 which may be removable with respect to the rest of the apparatus.
Patent GB-1161277-A (GB)
Title: Artists' Paint Box with Palette and Palette Cover
Inventor: BROWN DONALD
IPC: B44D3/04
Filed: 1968-03-25
Abstract: 1,161,277. Paint boxes. D. BROWN. 25 March, 1968, No. 14249/68. Heading B6P. An artist's paint box is made of a plastics material and comprises a box part A divided into compartments E to receive artists' materials, a lid B, and a palette C, the palette C being adapted to fit into the lid B so as to be secured therein and so that paint remaining in the wells of-the palette is enclosed. A liner D fitted into the lid B forms the enclosure or cover for the palette C. The latter is flanged around its edges Land is provided with a thumb hole H, wells J of one size for receiving colour direct from paint tubes, wells I of a larger size for mixing colours, and a still larger well K for larger amounts of white paint.
Patent GB-899317-A (GB)
Title: Improvements in saws
IPC: B23D49/08
Filed: 1960-04-22
Abstract: 899,317. Sawing. JAGERS, L., [trading as TRENNJAGER MASCHINENFABRIK]. April 22, 1960 [April 24, 1959], No. 14285/60. Class 145. A saw blade 9 is mounted at one end in a reciprocating holder 11 and is slidable in a channel 12 in a guiding member 13, the channel being of sufficient width to receive nearly the whole of the blade except for the toothed edge and sufficiently elongated to receive the length of the blade completely or nearly completely. Rails 15 of hardened metal are provided at the mouth of the channel. Additional guiding members having a hardened facing of cemented carbide or the like are carried in a block 16 on the end of the member 13 and are threaded so as to be adjustable to bear on the back and two sides of the blade. A similar block may be provided on the opposite side of the workpiece 3 from the block 16, particularly if the saw cuts on the inward stroke. The reciprocating holder 11 slides in a carriage 8 movable by rack and pinion means, to feed the saw into the workpiece, along a rail 5 braced by members 7 to a lower beam 6. During its downward stroke, the saw dips into a bath 23a of oil emulsion or other liquid coolant and during the non-cutting stroke, which is preferably the upward stroke; the carriage 8 moves back to withdraw the blade from the bottom of the kerf.
Patent GB-1344851-A (GB)
Title: Valving tube subassembly for percussion bit
IPC: E21B17/04
Filed: 1971-05-12
Abstract: 1344851 Percussive tools SUMMA CORP 12 May 1971 [23 Nov 1970] 14375/71 Heading B4C [Also in Division F2] To facilitate flow of a flushing medium through bores 14, 12 in a hammer piston P and a drill bit B and to prevent passage of operating fluid into bore 12 from the space between the impact end of the piston and anvil surface A of the drill bit, the drill bit is provided adjacent surface A with an assembly including a valving tube 18 and a resilient sleeve 32 keyed and/or adhesively secured to the tube and having a circumferential projection received in a groove in the bore 12. The tube may be of metal, e.g. aluminium, and the sleeve may be of rubber or plastics. As shown the sleeve has a plurality of projections 34 each received in a respective groove 26. The sleeve and tube may terminate short of shoulder 29 (Fig. 1A, not shown) or alternatively only the tube terminates short of the shoulder. In a second embodiment (Fig. 2, not shown) the sleeve has a plurality of projections (74) received in a single circumferential groove (68) in the drill bit bore.
Patent GB-246714-A (GB)
Title: Improvements in or relating to means for raising and lowering well-casings, well boring tools and the like
IPC: E21B19/06
Filed: 1925-06-02
Abstract: 246,714. Cuthill, J., and Oil Well Engineering Co., Ltd. June 2, 1925. Borehole apparatus.-In means for lifting &c. well casings, well boring tools &c., comprising a body 6 with a pivoted gate 10 adapted to clamp the casing &c., suspension means 13 being detachably connected to the body, the gate is automatically locked on closing by means of a horizontally pivoted latch 12 pressed by one or more springs 20 into engagement with a projection 23 on the gate, which projection seats on a shoulder 24 on the body; the latch is so balanced as to remain in its locking position if the springs break. The hinge portion of the gate is provided with an extended bearing surface 15. Stops 26, 38 limit movement of the latch. The suspension means 13 engage openings 28 in the body and are locked therein by pins 29 each provided with grooves 33, 36 engaged by a spring pressed pin 32 to hold the pin in locking or raised position; a collar 34 limits upward movement of each pin 29.