baber/WOPTO huggingface dataset:
Patent GB-525057-A (GB)
Title: Hydraulic control mechanism for the variable speed gear of machine tools
IPC: B23B47/08
Filed: 1939-02-13
Abstract: 525,057. Controlling change-speed gearing. SCHOENING, P., SCHOENING, A., and SHOENING, B. Feb. 13, 1939, No. 4691. Convention date, March 3, 1938. [Class 80 (ii)] In a hydraulic control of one or more gearshifter rods 9 wherein a pre-selective distributervalve 6 is put into communication with a pressure-pump 1 or accumulator through an executive-valve 4, which is normally open and is closed through a rack 15 by movement of a lever 12 to disengage a main-clutch 11, an additional valve 16 is arranged in the pressure-conduit 5 between the executive-valve 4 and the distributer-valve 6, the additional valve 16 being automatically closed by the clutch-control at the completion of a change. During normal running, Fig. 4, the valve 16 vents the input-line 17 of the distributer-valve 6 to exhaust 19, relieving it of any pressure so that the distributer-valve can easily be turned for pre-selective operation without having to stop the machine. During a change, the operation of the lever 12 to disengage the main-clutch 11 closes the executivevalve 4 thereby venting the main feeder-line 5 and relieving the pressure previously acting through a branch-line 18 on a piston-face 32 of the valve 16. A spring 21 thereupon moves the valve 16 to its extreme upper position, cutting off the branch-line 18 and vent-line 19 and connecting the feeder-line 5 with the distributervalve line 17. During re-engagement of the main-clutch 11 by return movement of the lever 12, the executive valve 4 is re-opened, putting the feeder-line 5, and with it the distributervalve line 17 under pressure, whereby the preselected change is effected. Towards the completion of clutch re-engagement, a projection 28 moving with the clutch-control presses the valve 16 downwardly to a position, Fig. 3, in which the pressure in the branch-line 18 can act on the piston-face 32, whereupon the valve 16 is rapidly moved to and held in its lower running position, Fig. 4, venting the distributer-valve 6.
Patent GB-1140365-A (GB)
Title: Improvements relating to shadow mask cathode ray tubes
IPC: F01K17/02
Filed: 1966-02-02
Abstract: 1,140,365. Colour television tubes. RADIO CORPORATION OF AMERICA. 2 Feb., 1966 [1 March, 1965], No. 4695/66. Heading H1D. A curved shadow mask electrode 28 in a shadow mask colour cathode ray tube comprises a multiapertured thin sheet metal masking member 30 attached to a rigid metal frame 32 at not less than eight and not more than fourteen points distributed around its edge portion 52. The edge portion 52 may be telescoped with but spaced slightly from the flange 50 of the L- shaped frame 32 and welded to it preferably at twelve points 54. The shadow mask electrode may be cap-shaped and rectangular to conform generally to the shape of the faceplate 14 which has a mosaic phosphor screen 26 deposited on its internal surface and support studs 36 extending from its sidewalls 22 which co-operate with support straps 40 to locate the shadow mask electrode adjacent the phosphor screen. Fig. 7 (not show) illustrates an arrangement of twelve weld points which avoid the corners of the mask. The frame 32 may be at least ten times the thickness of the masking member 30 and both may be of the same metal, e.g. cold rolled steel. The arrangement gives a unidirectional distortion during warming up, for which satisfactory correction may be made.
Patent GB-555406-A (GB)
Title: Improvements in or relating to half-tubular reinforced concrete beams for use in building construction
IPC: E04B5/04
Filed: 1940-03-13
Abstract: 555,406. Concrete beams. ABELES, P. W. March 13, 1940, No. 4714. [Class 20 (iv)] A reinforced concrete beam having interengaging transverse and longitudinal reinforcing members and made by centrifugal moulding is of substantially semicylindrical cross section and has a flattened upper surface provided with shoulders or recesses. In building a floor or ceiling, the lower edges of adjacent beams, which may be flanged, may be in contact or the spaces between them may be covered by slabs such as r. Slabs d may cover the cavities in the beams. On the upper side, the spaces between beams may be filled with concrete or covered by slabs. Extensions of the transverse reinforcing members or metal strips which engage the longitudinal members may be brought out at the lower part of the beam to provide an anchorage for covering slabs.
Patent GB-149017-A (GB)
Title: Improvements in connection with match boxes
IPC: A24F29/00
Filed: 1918-03-19
Abstract: 149,017. Dawson, J. W. L., and Dunkerley, J. March 19, 1918. Drawings to Specification. Matches, boxes specially designed for.-The outer casing of a match-box is, for match-striking purposes, provided all round with a sand paper or emery-paper covering, or with a roughened surface of a similar kind directly applied.
Patent GB-1129973-A (GB)
Title: Suspended roof construction for tents
IPC: E04H15/04
Filed: 1966-02-04
Abstract: 1,129,973. Tents. L. STROMEYER & CO. G.m.b.H. 4 Feb., 1966 [5 Feb., 1965], No. 4947/66. Heading E1A. In a tent, Fig. 1, comprising a cover 1 mounted at its corners on uprights as shown, the cover is provided with a central opening 5 which is bounded by a looped anchorage rope 4 for cover tensioning purposes. In a modification, Fig. 6, the apertured cover 9 is provided with loops 14a, 14b suspended from a mast 8. For a like construction having a single loop suspended from a mast, Fig. 5 (not shown) should be referred to.
Patent GB-396132-A (GB)
Title: An improved strap for wristlet watches
IPC: A44C5/24
Filed: 1932-02-19
Abstract: 396,132. Attaching watches to the wrist. PEARSON, A. E. and PEARSON & SONS, Ltd., E. J., Emerald Street, Theobald's Road, London. Feb. 19, 1932, No. 4988. [Class 43.] A wrist strap 1 is adapted to have one end passed through the loops 6, 7 of a watch ; the strap is then folded at the loops and a stud 2 of a snap fastening is passed through the strap and through one of a number of perforations in the one end of the strap and is snapped into a snap button 4 carried on the other end so as to secure the strap on a wrist. The button 4 is such as to enclose the outer or free end of the stud and it may also be of such a size that it will not pass through the loop 6 so as to prevent disengagement of this end of the strap.
Patent GB-470823-A (GB)
Title: Method of making plywood
IPC: C09J161/06
Filed: 1936-02-20
Abstract: A process of making plywood comprises coating wood lamin  with the aqueous reaction mixture from a phenol and aldehyde reacted in the presence of a catalyst below 100 DEG C. to form a partial condensate, drying the lamin , and hot-pressing.  The solution, which may contain ethanol or methanol, may be coated on both sides of the core, or on the inside or both sides of the surface lamin , or the latter may be impregnated therewith.  The partial condensate may be prepared from cresylic acid and formaldehyde as follows: in the presence of caustic soda, with or without ammonia, and triethanolamine, with or without oleic acid; in the presence of sodium sulphite, triethanolamine, and oleic acid.  Specifications 413,628; and 414,632, [Group VIII], are referred to.
Patent GB-1035681-A (GB)
Title: Coin-operated machine
IPC: G07F17/32
Filed: 1963-02-08
Abstract: 1,035,681. Separating coins and tokens. MAR-MATIC SALES Ltd. Feb. 8, 1963, No. 5344/63 Headings G4V and G4X. In a fruit machine operable by both coins and tokens the tokens, which are of ferrous material, are dispensed as prizes and the coin mechanism separates the coins and tokens into separate receptacles. Coins or tokens inserted into the machine are caught by teeth 5 on an endless chain 6 driven by a ratchet 9 connected to an operating handle 7. Transported by the chain the coins fall into a shoot 11 whereas the ferrous tokens are held up by magnets 12 until they have crossed the shoot 11 and are then delivered to a shoot 14.
Patent GB-621208-A (GB)
Title: Improvements in or relating to continuous injection syringe apparatus
IPC: A61M5/145
Filed: 1946-02-20
Abstract: 621,208. Continuous injection syringe apparatus. BOWIE, J. H. Feb. 20, 1946, No. 5368 [Class 81(ii)] [Also in Group XXXVII] An injection syringe apparatus, adapted to be secured to a patient, is provided with means for mechanically advancing the piston of the syringe at a slow and constant speed so that liquid may be continuously injected into the patient over a prolonged period, e.g. 24 hours. The .apparatus comprises a plate 1 to which is detachably secured a base plate 3 on which is mounted a syringe 4 by means of clamps 5. An enlarged head 8 of the piston rod rests in a saddle 9 which is adapted to be moved longitudinally by rotation of a lead screw 11 detachably connected to a flexible cable 14 driven by a suitable form of mechanism (see Group XXXVII), which may drive several syringe devices simultaneously. The forward end of the syringe is provided with a two-way cock 17 to which an injecton needle is resiliently connected. Specification 621,283 is referred to.
Patent GB-944616-A (GB)
Title: Improvements relating to the moulding of synthetic plastic containers
IPC: B29C49/48
Filed: 1961-02-15
Abstract: 944,616. Cooling blow moulds. BARAND Ltd., and W. A. MASLEN. May 15, 1962 [Feb. 15, 1961], No. 5580/61. Heading B5A. A two - part blow mould for synthetic plastics containers has a profile shell 2 of thin beryllium or beryllium alloy held in spaced relationship to cast alumium casing 1 by attachment plates 3, end plate 5 and end plate 6 with flared extension 8. Cooling water circulates through the enclosed space from inlet 10 to outlet 11. A calibrating blowing mandrel (Figs. 6 and 7, not shown) is also water cooled. Specification 944,615 is referred to.
Patent GB-1500986-A (GB)
Title: Binding machine
IPC: B42B5/00
Filed: 1975-02-10
Abstract: 1500986 Bookbinding MINNESOTA MINING & MFG CO 10 Feb 1975 [11 Feb 1974] 5596/75 Heading B6A A bookbinding machine is described, for applying to a set of edge perforated sheets 22 a binding element comprising a first backing member 17 bearing a plurality of ratchettoothed studs 27 and a second backing member 19 having a plurality of holes 39 with blocking members 43 for receiving the studs. The machine has a first platen support 16 with fingers 32 for supporting the second backing member between the holes. An elongate ram 34 compresses the backing members together causing the studs to pass through the holes and the blocking members to engage spaced projections 38 on a second, lower support 36 as the first support 16 is forced down by the ram against a spring 42 so that the blocking members are forced into the holes. A cutter 68 cuts off the protruding ends of the studs. The machine includes a further platen support 14 having punches 30 for perforating sheets. The punches are operated by a hand lever which also drives pinions 62 which mate with racks 48 attached to arms 46 which mount the ram 34. The arms are biased backwardly by springs 54 but move forwardly and downwardly as the lever 14 is moved. A centre portion of the ram may be mounted so as to be movable relative to the arms 46 unless a lip 80 is manually urged beneath a member 86. Thus the ram can be operated firstly upon the outer portions and then upon the centre portion of the backing members. The cutter 68 is operated by a second hand lever and includes a plurality of spaced cutting edges (44), Fig. 9 (not shown).
Patent GB-652648-A (GB)
Title: Power recovery circuit for cathode ray apparatus deflection system
IPC: H03K4/28
Filed: 1948-02-25
Abstract: 652,648. Power recovery circuits. RADIO CORPORATION OF AMERICA. Feb. 25, 1948, No. 5628. Convention date, Feb. 25, 1947. [Class 40 (vi)] In a magnetic deflection circuit for a cathoderay tube in which undesired H.F. oscillations are removed by a damping valve, a D.C. potential developed across a capacitor in series with the valve is connected effectively in series with the D.C. supply to the power output valve of the scanning circuit by connecting one plate of the capacitor to the cathode of the power valve. The Figure shows a power recovery system for the line scanning circuit of a television receiver in which the linearity of the scanning current in the deflecting coils 14 is improved by varying the impedance of the damping valve 36 in accordance with a voltage 36 in accordance with a voltage fed to its grid via the wave shaping circuit 44, 46. The D.C. potential developed across capacitor 38 is connected effectively in series with the power supply B+, B - to the power output valve 10, thus increasing the efficiency of the circuit. The D.C. voltage at lead 62 may be used for other purposes in the receiver and the E.H.T. for the final anode of the cathode-ray tube is derived via the rectifier 30 from the voltage developed across the output transformer during the fly-back period. Adjustment of potentiometer 23 enables the centering of the scanning beam to be adjusted. Specifications 613,053, 622,847, [both in Group XXXV], and 632,365, are referred to.
Patent GB-703492-A (GB)
Title: Improvements in and relating to the sorting of seeds and other small articles
IPC: B07C5/02
Filed: 1951-03-09
Abstract: 703,492. Jigging conveyers. OKOLICSANYI, F., and GUNSON (SEEDS), Ltd., R. W. March 10, 1852 [March 9, 1951], No. 5711/51. Class 78 (1) [Also in Group XL (b)] To ensure that articles, e.g. seeds being fed to a sorting position by a vibrating conveyer, arrive at the sorting position singly, a second conveyer is provided which feeds the articles to the first conveyer, more quickly than they are delivered, means, e.g., photo-electric cells, being provided to stop the second conveyer if articles accumulate on the first. This conveyer is restarted if the supply falls. As shown seeds pass from a hopper 10 on to a vibrating conveyer 11 (the second conveyer) from which they pass to the surface of a conveyer 14 and then fall singly past a sorting mechanism 18. In the face of conveyer 14 is a channel by which seeds are led singly to the sensing position and a series of apertures 19 are provided in the bottom of the channel. Light from a source 20 passes to a photoelectric cell 21 beneath the conveyer. Unless all the apertures are covered by seeds the photo-cell operates to switch on the electromagnet 13 vibrating the conveyer. In a modification, Fig. 3 (not shown), a feeler moved by seeds piling up against it closes the switch of the second conveyer. An arrangement is described, Fig. 4 (not shown), in which a conveyer is mounted . on substantially vertical blade springs one of which is attracted by an electromagnet and another of which is detected by an electric pick up. The output of the pick-up is amplified and applied to the magnet to keep the conveyer vibrating at its natural oscillation frequency. Specifications 617,276, [Group XL (b)], 642,283 ; 642,284, 652,782, [both in Group XL (b)], and 667,669 are referred to.
Patent GB-471067-A (GB)
Title: Improvements in or relating to fertilizers
IPC: C05F3/00
Filed: 1936-02-26
Abstract: A fertilizer is obtained by crushing quicklime into intimate contact with poultry manure e.g. in a pan mill, and intermixing with the product bone meal, granular bone, or like material having a high phosphate content.  A further grinding operation may follow the addition of the bone meal &c.  A small quantity of water may be added in the first step to expedite the action of the lime.
Patent GB-329693-A (GB)
Title: Improvements in and relating to apparatus for building up words, letters, and other indications from fields of lamps
IPC: G09G3/00
Filed: 1929-02-21
Abstract: 329,693. Woodley, W. E. Feb. 21, 1929. Illumination, changing advertisements by controlling; actuating.-In apparatus for building up words, letters, &c. from fields or groups of electric lamps, magnetically operated switches for the lamps are controlled by electrically operated time-lag devices so that an appreciable interval of time elapses between the lighting or extinguishing of each lamp or group of lamps. Fig. 1 shows magnetic switches A, A<1>, A<2>, L, of solenoid or other type, so connected that when switch L is not excited contacts D<1> are closed and contacts D opened, thus allowing current to pass across D<1> to switch A through a time-lag device. When the period expires switch A is excited and both contacts C, C<1> are closed against the action of a spring, thus both lighting a lamp E and allowing current to pass to switch A<1> through a time-lag device. The switch A<2> is similarly energized, and the closing of its contacts C<1> allows current to pass through a timelag device to the switch L, causing illumination of the fourth lamp E and de-energizing of all the switches The time-lag device may comprise a thermal switch arranged as shown in Figs. 4 or 5. Fig. 6 shows an arrangement of thermal switches 10 which have their elements heated by the making of the circuit therethrough by the closing of the contacts 5<a> of the previous solenoid switch 6, the full current through the following solenoid switch and its lamps occurring when the heating elements have closed the contacts 11. In Fig. 6 is depicted a modification in which the plungers 12 of the solenoids 6 are each provided with a conductor 18 so arranged that when no current flows through the solenoid a pair of contacts 18a is bridged to permit the circuits to be so wired that only two thermal switches 10<a>, 10<b> are necessary for anv number of solenoid switches. In a further arrangement one thermal switch only is provided. When the lamps take more current than can be passed through the thermal switches the contacts may be arranged so that the lamp current does not pass through the thermal and solenoid switches. A commutator may be combined with any of the above forms whereby at the end of each cycle of operations it is rotated to employ a different set of lamps for the next cycle.
Patent GB-1475669-A (GB)
Title: Water-soluble polyester wire-enamel composition
IPC: C09D5/25
Filed: 1976-02-17
Abstract: 1475669 Coated copper and silver wires SCHENECTADY-MIDLAND Ltd 17 Feb 1976 06079/76 Heading B2E [Also in Division C3] Ag or Cu wires are coated with an aqueous solution of a composition comprising a watersoluble polyester, hydroxymethylated diacetone acrylamide (H), and a water-soluble organic titanate; where (P) is derived from (a), optionally a tricatboxylic acid or anhydride, together with a tetracarboxylic acid or anhydride, (b) an aromatic dicarboxylic acid or anhydride optionally together with a smaller quantity of an aliphatic or cycloaliphatic acid or anhydride, and (c) a dihydric alcohol (H) is hydroxymethylated N-(2-methyl-pentan-4-on-2- yl)acrylamide in which there are hydroxymethyl groups attached to the C atoms.
Patent GB-856629-A (GB)
Title: Drives for transmitting rotary motion
IPC: F16H55/18
Filed: 1957-02-25
Abstract: 856,629. Toothed gearing; coupling gears to shafts. SCHWEIZERISCHE LOKOMOTIV UND MASCHINENFABRIK. Feb. 25, 1957 [March 1, 1956], No. 6194/57. Classes 80 (1) and 80 (2).  In order to prevent backlash between meshing gear-wheels 2, 4 on shafts 1, 3, an auxiliary gear-wheel 5 is keyed to the shaft 1 and meshes with an auxiliary wheel 6 which is mounted on the shaft 3 and is rotatably biased relatively thereto by hydraulic pressure which can be varied during operation of the gearing. As shown the wheel 6 is rotatable on a hub 9 keyed to the shaft 3 and is fixed to a cover 8 shaped to form an annular space 10 into which protrude alternately lugs 12, Fig. 3, on the cover 8 and lugs 13 on the hub 9. A gear pump 23 supplies oil through an adjustable valve 22 to the chambers 14 formed between the lugs 12, 13 to impart a rotational bias to the wheel 6 on its hub 9. The valve 22 may be adjusted to provide adequate, but not excessive, backlash-preventing pressure and if the gearing is running smoothly may be completely closed. The auxiliary wheels have the same gear ratio as the main wheels but may have a different pitch. Instead of being accommodated in the interior of the wheel 6, an hydraulic pressureapplying device may be arranged outside the gear case. In a modification, the backlashpreventing device is applied to reverse gearing wherein an output shaft loosely carries forwardrunning and reverse-running wheels and is coupled to one or the other by oil-actuated friction clutches. The reverse-running wheel is driven through a reverse wheel on whose shaft is mounted an auxiliary wheel similar to the wheel 6, said auxiliary wheel gearing 35 with an extension of the reverse-running wheel.
Patent GB-105964-A (GB)
Title: Improvements in and connected with Wheels.
Inventor: HOUNSFIELD LESLIE HAYWOOD
IPC: B60B3/08
Filed: 1916-05-03
Abstract: 105,964. Hounsfield, L. H. May 3, 1916. Detachable-rim attachments to wheels.-In wheels of the kind having the disks made of comparatively thin conical metal sheets strained radially when in use. the peripheries of the two disks A are attached permanently to a single ring X, Figs. 1 and 2, or they are attached directly to one another, as shown in Fig. 3. The radial strain is obtained means of conical surfaces N, Figs. 1 and 2, and bolts M; or by means of taper pins O, Fig. 3, and bolts P; or by means of radial bolts Q, Fig. 4, and taper pins.
Patent GB-834796-A (GB)
Title: Apparatus for automatically binding packages with binding material
IPC: B65B13/02
Filed: 1956-02-08
Abstract: 834,796. Bundling machines. ERAPA. Feb. 8, 1956 [Feb. 21, 1955], No. 6386/59. Divided out of 834,795. Drawings to Specification. Class 94(1). The subject-matter of this Specification is substantially the same as that described in Specifications 834,795 and 834,797 but the claims differ.
Patent GB-680710-A (GB)
Title: Production of manganous chloride
Inventor: HOCK ALFRED LOUIS
IPC: C01G45/06
Filed: 1949-03-09
Abstract: Manganous chloride is produced by reacting manganese or ferromanganese and chlorine in a refractory-lined container having a base so inclined that the fused chlorine drains away from the metal or alloy as it is produced.  The process may be carried out in an inclined rotary tube furnace which is rotated continuously or intermittently during the process, the lower part of the charge being initially heated to redness by a gas burner.  Chlorine is admitted at the upper end.  Temperature limits of 600 DEG C. and 1,000 DEG C. are specified.  A substantial amount of the iron present in the ferromanganese is removed as volatile ferric chloride; ferrous chloride in the manganous chloride may be removed by a subsidiary stream of chlorine introduced near to the outlet and/or in a separate apparatus.  Carbon on the residual metal may be removed by water and the unreacted metal returned for further chlorination.  The Provisional Specification includes the production of fusible metal halides generally.
Patent GB-525730-A (GB)
Title: Method of producing sulphur from gases containing sulphur-dioxide
IPC: C01B17/04
Filed: 1939-02-27
Abstract: 525,730. Sulphur. A. G. EXPLORATION CO., Ltd., and HILL, C. T. Feb. 27, 1939, No. 6441. [Class 90] Sulphur is obtained by passing gases containing sulphur dioxide through a mass or column comprising carbonaceous material in such manner that the gases do not contact with the support for the mass or column, material being added at the top and withdrawn at the bottom. The carbonaceous material may be lump charcoal, coal, or coke, and the mass may also comprise lump refractory material; finely divided carbonaceous material may be allowed to fall on to the mass of refractory material or may be injected with the gas stream. The gases may be obtained by burning finely divided sulphides suspended in air and may be freed from dust by a refractory cyclone extractor. As shown, a plant comprises a chamber A, lined with refractory material, containing a mass B comprising carbonaceous material, supported on a table C. Material is pushed off the table C by the rake or rakes D by a chain or rotating grate and removed via the slides J, the mass being replenished by additions through the hopper G. The gases pass, preferably upwards, between the ports K. The gases may be freed from dust and any sulphur dioxide, carbon oxysulphide, and carbon disulphide may be catalytically reacted, before the sulphur is condensed.