baber/WOPTO huggingface dataset:
Patent GB-1425837-A (GB)
Title: Plastic mouldings
IPC: B29C61/00
Filed: 1973-05-09
Abstract: 1425837 Injection moulding apparatus GKN SANKEY Ltd and ARO PLASTICS DEVELOPMENT Ltd 3 May 1974 [9 May 1973] 22039/73 Heading B5A The invention relates to apparatus for moulding plastics material about a rigid reinforcement, the-apparatus being of the kind compris. ing projections 21 which are movable between operative positions in which they project into a mould cavity 23 to locate the reinforcement therein and inoperative positions in which they are retracted from the cavity, first means to control transfer of heat through the walls of the cavity, and second means to effect transfer of heat along the projections in a direction opposite to the former transfer. According to the invention the second means comprises a first element 27 arranged to receive energy from an external source and mounted in a fixed position on one mould part, and a second element 25 constituting, or carried by, the projection, the elements 25, 27 being such that transfer of energy can take place from the first element to the second element to heat the projection without any direct physical connection between the elements. As shown in Fig. 2 the projection 21 is slidable in mould part 20 and provided with an internal electric resistance heater 24 connected to the secondary 25 of a transformer whose primary 27 is mounted in a bore 28 in mould part 20. In Fig. 1 (not shown) the projection (11) is heated by an induction winding (18) in a bore (17) in the mould part. In a modification of the Fig. 1 arrangement a heat pipe may be provided within the projection so that one end is heated by the coil (18). The coil (18) may be replaced by an electric resistance coil or a coil through which hot fluid is passed. In Fig. 3 (not shown) the projection (29) contains a heat pipe (30) containing a wick (31). One end of the heat pipe is heated by a coil (33) connected to the secondary (34) of a transformer.
Patent GB-729015-A (GB)
Title: Improvements in non-reversing internal combustion engines
IPC: F01B25/18
Filed: 1953-08-10
Abstract: 729,015. Lost-motion couplings. HUMBER, Ltd., and COY, E. W. Aug. 10, 1953, No. 22074/53. Class 80 (2). [Also in Group XXVIII] In a non-reversing internal-combustion engine, the fuel-injection pump is driven by a lost-motion coupling so that if the engine should rotate in the reverse direction, the time of injection is delayed to a position in the cycle that it is ineffective to the running of the engine. Figs. 2 and 3 show a dog clutch comprising two coaxial parts 11, 13 pressed together by a spring and in the normal direction of rotation, the dog or dogs 17 engage the surfaces 19. Upon reverse rotation, the dog or dogs 17 slide up the ramps 20 to disengage the coupling and relative rotation occurs to bring the dog 22 into contact with the abutment 21. Specification 648,117. [Group XXXI], is referred to.
Patent GB-695173-A (GB)
Title: Power operated mechanism for moving the tool slide and tool slide carriage of a lathe or like machine tool
Inventor: SMITH EDWIN ROY
IPC: B23Q5/34
Filed: 1951-09-20
Abstract: 695,173. Lathe details. SENECA FALLS MACHINE CO. Sept. 20, 1951, No. 22093/51. Class 83 (iii). Power-operated mechanism for moving a lathe or like carriage axially with respect to the work, a tool slide being movable transversely on said carriage, comprises a rotatable drum parallel to the work axis, follower means on the carriage, cam means on the drum having first and second cam portions respectively coacting with the follower to move the carriage alternately forward and reversely by rotation of the drum in the same direction, means to rotate the drum forwardly or reversely, said cams being arranged to give a dwell to the carriage on reversal of the drum and means operable during the dwell to withdraw the tool slide away from the work. The carriage C is fed longitudinally by a cam drum 22 which has cam surfaces 24, 25 for feeding and returning the carriage respectively. The drum is driven by toothed gearing from a motor M through a clutch 60, 61 and a reversing gear 50, 51 engaged by a clutch 40. One of the drive shafts 36 also rotates, through bevel gearing 90, 91, and pinion 93, a gear 88 having a splined connection with a shaft 87. The latter moves with the carriage and drives, through further bevel gearing 85, 86, a vertical shaft 8a in the carriage and having at its upper end an adjustable plate 79 with a pair of toothed members 77, 78. These members engage a pinion 76 on a shaft 71 which carries an eccentric 70 engaging a slot 74 in the cross slide 16. Each toothed member rotates the eccentric one half a revolution and the arrangement is such that the tool is withdrawn at the end of a longitudinal feed movement during the cam-drum dwell, and is returned to the operating position at the end of the carriage return ready for a fresh cutting operation. If the feed is reversed at an intermediate point by shifting the reversing clutch 41, the cam drum does not immediately reverse the carriage feed but there is again a dwell which allows the toothed member 78 to withdraw the tool, thus preventing it from becoming damaged by the reversal.
Patent GB-479908-A (GB)
Title: Improvements in or relating to drum magazines for machine guns
IPC: F41A9/74
Filed: 1936-08-11
Abstract: 479,908. Cartridge magazines for machine guns. VICKERS - ARMSTRONGS, Ltd., and HIGSON, P. R. Aug. 11, 1936, No. 22104. [Class 92 (ii)] Drum magazines of the Lewis type in which the cartridge rims engage a guide 23 on the inner circumference of the fixed pan 2 have a resilient member 14 pressing on the bullet ends of the rounds R to expel them progressively through the feed channel 6, 5 in the floor of the pan. The usual helical bullet guide is thus dispensed with. The cartridges are fed round the pan by a clock spring 12 acting on a plate 1 fitted with spacer members 3. Arranged within the spacer members 3, Fig. 3, and following behind the last cartridge is a radial arm 17 carried by the member 14. The radial arm is of box form at its outer end and is so shaped that, after forcing the last cartridge through the feed channel, it engages a projection 22 of the fixed guide 23 to arrest the spacer plate. To prevent the member 14 pressing two superposed bullets into the feed channel, a shaped spacing strip 24 in the form of an open ring is secured to the floor of the pan to guide the bullets into the bottom layer.
Patent GB-1245514-A (GB)
Title: Improvements in or relating to bogie structures
Inventor: MOHL STEFFEN
IPC: B60G5/047
Filed: 1969-04-30
Abstract: 1,245,514. Multiple axle suspensions. S. MOHL. 30 April, 1969 [8 May, 1968] No. 22128/69. Heading B7D. The distribution of load on a vehicle's axles is maintained substantially constant on uneven surfaces by a spring suspension arrangement in which (Fig. 1) a primary spring 3 extending beyond two axles is pivoted to the frame at 6 and slidably mounted at 8, and is directly supported on one axle 11. The second axle 11 supports a secondary spring 4 pivoted to the frame at 4 and slidably supporting the end of spring 3 at 18. A three-axle arrangement (Fig. 2) has a central axle directly supporting the primary spring 3 which is rotatably fixed to the frame at 13 and slidably supports it at 15. Secondary springs 4 carried by the outer axles are pivoted to the frame at 16 and slidably support the ends of spring 3 at 18. The loads on the springs may be distributed by shaped rigid blocks or additional leaves 5, 5<SP>1</SP>.
Patent GB-1475146-A (GB)
Title: Grinding machine control systems
IPC: B24B47/20
Filed: 1974-05-17
Abstract: 1475146 Automatic control of grinding LANDIS TOOL CO 17 May 1974 [22 May 1973] 22225/74 Heading G3N [Also in Division B3] In a grinding machine, the wheel 15 being normally advanced by motor 23, an absolute multi-turn bcd encoder 63 then producing a digital indication of wheel movement, there is additionally provided a wheel wear, or dressing compensating motor 95 for advancing the wheel without disturbing the settings of motor 23, and encoder 63. As shown, the motor 95 drives leadscrew 21 at the output of a differential arrangement, see also Fig. 2 (not shown), in which case the input 99, coupled to the encoder 63 and motor 23 remains stationary. In normal use, the desired size of a workpiece is set using switch 55, a set of feed ranges to attain the desired size being set using switches 51, there being corresponding feedrate switches 49 controlling pulse rate multiplier 71 defining the rate of pulses gated to control drive 77 of the stepping motor 23. The sum of all the feed ranges, and the desired size is produced in adder 65, and is fed to comparator 67 receiving the encoder output. When, during a grinding sequence controlled by unit 64, one of the feed ranges and rates is initiated, such range is subtracted from the adder 65, drive of motor 23 being enabled until the encoder output corresponds to the new adder content. A display panel shows the amount yet to be removed from the workpiece, and the desired workpiece size. Offset 93 allows for calibration by changing an offset, introduced at 69, and corresponding to the difference in the setting of switch 55, and the actual size of a finished workpiece. Timers 53 allow for delay periods between the different feedrates and ranges of the sequence, and for "spark-out" grinding. When the wheel is dressed, dresser 111 provides a signal representing the reduced size of the wheel to control compensating movement of the leadscrew driven by stepping motor 95, which may alternatively be manually controlled via unit 121.  An hydraulic rapid feed 17 is provided, there being a forward stop 41 for the leadscrew, and limit switches 59, 79.
Patent GB-928117-A (GB)
Title: Curing phenolic resins
IPC: C08G2/06
Filed: 1961-06-20
Abstract: A phenol-resorcinol-formaldehyde resin is cured by mixing with an alphapolyoxymethylene and an alkali metal hydroxide to give a pH of 7,1-9 and holding at room temperature or above.  A composition of such a resin, an alkali, an alphapolyoxymethylene, having a pH 7,1-9 is used as an adhesive, e.g. for plywood, with or without the addition of fillers, e.g. walnut or other nut shell flour, ground Douglas fir bark, wood flour, fine asbestos or powdered clay. Methanol or ethanol may be used to replace part of the water as solvent.  The resin is prepared from 25-75 parts by weight of phenol per 100 of total phenol and resorcinol, or 0,5-0,9, preferably 0,55-0,7 mole of formaldehyde per mole of total phenol and resorcinol, in the presence of alkali. Specification 928,118 is referred to.
Patent GB-1438145-A (GB)
Title: Molecular weight control of polyurethane elastomers
IPC: C08G18/10
Filed: 1973-05-10
Abstract: 1438145 Polyurethane elastomers BAYCHEM CORP and BAYER AG 10 May 1973 [12 May 1972] 22299/73 Heading C3R Polyurethane elastomers are prepared by reacting (a) an organic polyisocyanate, (b) an organic polyhydroxy compound having a M.W. of from 800 to 5000 and containing 2 or more primary or secondary isocyanate reactive OH- groups, optionaly (c) a diol having a molecular weight of 62 to 400 and (d) from 0À1 to 3 mols per cent, based on the molecular equivalent of all available OH groups, of a chain terminator of the general formula wherein R and R<SP>1</SP> each represent an α- and/or #-branched alkyl group containing at least 3 carbon atoms, which may contain one or more hetero-atoms, which chain terminator is less reactive with the NCO groups in (a) than the OH-groups in (b), but is more reactive with the NCO groups than are the urethane groups produced by the reaction of (a) and (b) and (c), if used, such that the NCO : OH ratio of (a) : (b) and (c), if used, is 0À9 : 1 to 1À1 : 1, and when the reactants are reacted together in a one-shot process, the chain terminator (d) is present in (b) and/or (c) and when (a) and (b) are first reacted to give a prepolymer the compound (c) contains the chain terminator (d), with the proviso that, when (b) contains at least 2 secondary OH groups, (a) and (b) are first reacted to give a prepolymer. Compounds (a), (b) and (c) are those used conventionally in the polyurethane art. The chain terminator (d) is preferably diisobutylcarbinol, diisopropylcarbinol or 2,6,8-trimethylnonanol-4.
Patent GB-1411072-A (GB)
Title: Pellet systems
IPC: H01G9/00
Filed: 1974-05-20
Abstract: 1411072 Anodizing tantalum SPRAGUE ELECTRIC CO 20 May 1974 [18 May 1973 (2)] 22339/74 Heading C7B [Also in Division H1] In a batch process for manufacturing tantalum solid electrolytic capacitors a plurality of sintered tantalum pellets 14 each provided with a tantalum lead 12 and lap or butt welded to a carrier bar made of an alloy consisting of aluminium and 1 to 6 wt per cent magnesium, or of a composition consisting of 2 to 15% by volume of alumina dispersed in aluminium, an anodic oxide layer is deposited on the Ta using as electrolyte a 0.1% aq. solution of NH 4 .H 2 PO 4 . Since the bar has valve metal properties it does not matter if it dips in the forming bath for dielectric oxide and accordingly the lead wires may be <SP>3</SP>/8 inch or less.
Patent GB-508340-A (GB)
Title: Method and apparatus for liquid treatment of rayon
IPC: D01D10/00
Filed: 1938-07-27
Abstract: 508,340. Liquid treatment of rayon. AMERICAN VISCOSE CORPORATION. July 27, 1938, No. 22363. Convention date, Sept. 27, 1937. [Class 15 (i)] Rayon in the form of cakes or hanks is supported for< >liquid treatment on hollowtubes with a substantially flat longitudinally extending surface through perforations in which nearer to the side edges than to the centre the treating liquid is forced under pressure. The tubes may be intermittently rotated and the direction of rotation from time to time may be reversed to ensure even treatment. As shown, the cakes 10, which may be encased in permeable wrapping preferably of knitted tubular rayon material 12, 13, secured by ties or fastenings 14, are placed on upper and lower series of tubular supporting arms 35 of triangular, flattened tubular section or of the section shown in Fig. 7, the arms of the upper and lower series being staggered in relation. to one another. Weighting rods - 39 -are placed inside the cakes. The cakes. 10 rest on the corners of the flat surfaces 40 of the arms and form seals to pockets between the underside of the cake and the surface 40, into which treating liquor is forced through perforations 42 nearer the corners 41 than the centre. Discs 37, 38 serve to limit the expansion of the cakes under liquid treatment. The arms 35 which are closed at their outer ends are each coupled at their inner ends by flanges 36 to corresponding upper and tower series of tubes 24 which are carried by a carriage frame 20 adapted to be moved by wheels-21 on rails 22. The tubes 24 are geared together by gears 25 and are rotated, as the carriage is moved over the rails, by engagement of wheel 48 with a lower rack 27 or by engagement of wheel 26 direct with an upper rack 49 first in one direction and then in'the other. Liquid is supplied from a succession of troughs 34 in any desired number and sequence containing desired treating liquors to the pipes 24 through T-unions 28 communication between them being either continuous, or intermittent by cutting off the through connection by rotation of the pipes 24 due to movement of the carriage 20. Hanks may be treated in a similar manner.
Patent GB-389374-A (GB)
Title: Improvements in means for automatically mounting and dismounting mirror script originals in manifolding apparatus
IPC: B41L11/00
Filed: 1932-08-10
Abstract: 389,374. Copying documents &c. ; printing-surfaces. RITZERFELD, W., 107, L³tzowstrasse, Berlin. Aug. 10, 1932, No. 22385. Convention date, Aug. 11, 1931, [Class 100 (ii).] In a machine for copying documents &c. by means of a mirror-copy original carried by a rotary cylinder 1 wherein the original is adapted to be replaced by a fresh original while the machine is running, the original being laid on a table whereby it may be presented to a clamp on the cylinder 1, and the clamp being opened and closed to receive the original during the rotation of the cylinder, the clamp opens in the direction of rotation of the cylinder, and the fresh original is presented thereto in a direction opposed to said rotation. As shown, the clamp comprises a pivoted member 2 to which is fixed a lever 3. When an original is to be replaced, a cam 4 is turned by a handwheel 7 into the position shown, whereby the member 2 is rocked to release the used original and subsequently engages a lever 12 connected to a table 5 which is rocked about a pivot 14 and raises the front edge of a fresh original 6 into position to be taken by the clamp. The lever 3 afterwards releases a catch 8 which retained the cam in operative position. A stationary front stop 15 is so situated that the front edge of the original 6 overhangs the end of the table 5.
Patent GB-225627-A (GB)
Title: Improvements in or relating to the electrical heating of buildings
IPC: H05B3/28
Filed: 1923-09-06
Abstract: 225,627. Musgrave, J. L., and Grierson, Ltd. Sept. 5, 1925. Wire and ribbon resistance fabrics; wire and ribbon resistances, embedded.-Electric conductors B, preferably made from an alloy, are interwoven with strands of asbestos d' and then incorporated with a supporting material A such as paper pulp, vulcanite, fibrous plaster, glass or the like while the material is in a plastic or semiplastic condition. Sections of the material are used as a structural part of the floors, walls, or ceilings of rooms, and are then covered with plaster or other substance forming the finished surface from which the beat radiates.
Patent GB-660519-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/32
Filed: 1949-08-30
Abstract: 660,519. Hand-tool handles. HOOVER, Ltd. Aug. 30, 1949 [Sept. 4, 1948], No. 22466/49. Class 61 (i) [Also in Group XXVIII] A handle control mechanism for a suction cleaner comprises a handle socket 19, Fig. 2, pivoted on a pin 18 between body brackets 16, 17 a handle 24 received by the socket and capable of twisting movement relative thereto and limited by abutment of a pin 35 with the ends of a slot 36, Fig. 3, and a control sector 25 mounted on the bracket 17 and having shoulders 26, 27 which when engaged by a detent 34 at the base of the handle 24 lock the latter in an upright storage position and provide a lower limit of the normal working range. On slight rotation of the handle 24 the shoulder 27 is overcome and the handle assumes its lower working range which is limited by a shoulder 28. The detent 34 is biassed towards the sector and the handle as a whole is biassed upwards by a spring 38 secured at one end to the pin 35 and at its other end to the bracket 16.
Patent GB-1040493-A (GB)
Title: Bags
Inventor: LAFLEUR ARTHUR EUGENE
IPC: B65D30/20
Filed: 1964-06-01
Abstract: 1,040,493. Block-bottom plastics bags. A. E. LAFLEUR and W. J. SONSARA. June 1, 1964, No. 22518/64. Heading B8K. A bag made of tubular heat sealable plastics material has rectilinear side panels 2 with inwardly extending gussets 3, there being diagonal heat seals 4, 5 each uniting a side panel with the connected piece of gusset, and transverse seals 11, 13 uniting the lower margins of the panels to each other and extending through and closing the lower extremities of the gussets; other seals 7 extend upwardly from the inner ends of the seals 4 and unite the panels to define sides of a filling opening 6. Further seals 8, 9 extend through the four layers of material of the two side panels 2 and gussets 3 and join with the seals 7. Closure is effected by a hot knife seal 10.
Patent GB-1184546-A (GB)
Title: Electro-Magnetic Devices for Controlling Flow of Fluid.
Inventor: FREEMAN FRANK GEORGE
IPC: F15B13/044
Filed: 1966-05-20
Abstract: 1,184,546. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. 19 May, 1967 [20 May, 1966], No. 22550/66. Heading F2V. [Also in Division G3] A valve has an electromagnetically controlled piston 15 between the inlet 11 and outlet 12 in a passage 16 which has non-aligned ports 17, 18. Movement of the piston is facilitated by a bore 20 connecting its two ends to equalize the fluid pressure. An armature 14b of the electromagnetic device 14a is biased by a spring 19 so that the piston 15 covers aperture 18 until the device is activated when the piston retracts and uncovers it. The valve can be utilized in a servomotor-system (see Division G3) controlling the output of a swash plate pump P.
Patent GB-799953-A (GB)
Title: Improved pastes of polyvinyl chloride and softening agents
IPC: C08K3/36
Filed: 1955-08-05
Abstract: Pastes of polyvinyl chloride and plasticizers contain up to 1 per cent of the polyvinyl chloride of a silicic acid produced by burning a mixture of silicon tetrachloride and hydrogen. Plasticizers specified are dioctyl and diethylhexyl phthalate and tricresyl phosphate.  Calcium, strontium or barium stearate may be added to the pastes.  The pastes may be spread or brushed on to textiles or moulded articles may be made by the hot, or cold, dipping process, followed by gelatinization.  Specification 695,276 is referred to.
Patent GB-868343-A (GB)
Title: Improvements relating to end unions for corrugated metallic tubing having an outer braided covering
Inventor: MARTIN LEONARD CHARLES HENRY
IPC: F16L33/26
Filed: 1959-07-01
Abstract: 868,343. Tube couplings. POWER FLEXIBLE TUBING CO. Ltd. March 9, 1960 [July 1, 1959], No. 22585/59. Class 99(1). An end fitting for corrugated metallic tubing having an outer braided covering comprises a sleeve 1 permanently secured to the end corrugation of the tubing, a ring 4 surrounding the sleeve and embracing the end of the braid and also permanently attached to the sleeve, and a nipple 3 carrying a union nut 2 slidable and rotatable thereon but non-removable from the nipple after the latter has been permanently secured to the sleeve. As shown, the sleeve' has a flange which abuts the end corrugation of the tubing, and a spigot portion inserted into the tubing.
Patent GB-1475521-A (GB)
Title: Shower cubicles
IPC: A47K3/28
Filed: 1975-03-19
Abstract: 1475521 Shower enclosures D BURGESS and G F G MOSS 19 March 1975 [21 May 1974] 22636/74 Heading E1A [Also in Division F2] Panels for forming a shower enclosure are joined by means of channelled members 16, 18 having an internal width greater than the thickness of the panel material at the panel edge and at least part of the panel edge being displaced out of the major plane of the edge to form an edge portion of greater overall thickness than the channels so that the edge portion is a force fit in the channelled member. The panels may be of plastics and the channelled members aluminium extrusions.
Patent GB-383322-A (GB)
Title: Improvements in and relating to devices for indicating wind direction
IPC: F42B12/48
Filed: 1931-08-11
Abstract: 383,322. Smoke-producing bombs and compositions. MITCHELL, V. E. S., War Oflice, London. Aug. 11, 1931, No. 22722. [Class 81 (i).] A bomb for producing smoke on striking the ground after dropping from an aircraft to indicate the direction of the wind contains two or more glass vessels d containing chemicals and means such as a heavy disc in the rear or a front plunger i for breaking these vessels on impact whereupon the chemicals react and produce smoke. Alternatively, one vessel is placed above the other to cause the break-up on impact. The vessels may be packed in cotton wool or held in place by tongues bent from the enclosing casing a, which may be formed with perforations b in various places and may be provided with a winged tail c. One vessel mav contain ammonia and the other titanium tetrachloride or stannic chloride or silicon tetrachloride.