baber/WOPTO huggingface dataset:
Patent GB-906149-A (GB)
Title: Improvements in or relating to hydraulic servo-mechanism with electric control
IPC: B23H7/28
Filed: 1958-10-09
Abstract: 906,149. Fluid-pressure servomotor-control systems. ATELIERS DES CHARMILLES S.A. Oct. 9, 1958 [Oct. 11, 1957], No. 32224/58. Class 135. The electrode of an electro erosion machine is positioned by a differential piston 19 having pressure from the pump 2 acting directly on the small piston area and governed by the by pass relief valve 10, this pressure also acting via a fixed throttle 4 and an adjustable throttle 26 on the large area of the piston and being controlled by a leak off needle or ball valve 7 electromagnetically actuated in response to variation of the current between the electrode and the surface being eroded due to e.g. the presence of an impurity. The plunger 6 of the electromagnetic device 5 is lightly centred by a supporting diaphragm and carries a coil moving in a gap in a permanent magnet so that the electromagnetic force applied to the valve is practically independent of the position of the valve so that the pressure variation produced by actuation of the valve is substantially proportional to the electric signal fed to the device 5.
Patent GB-211249-A (GB)
Title: Improvements in or relating to circular shuttle-boxes of looms for weaving
IPC: D03D43/00
Filed: 1922-11-25
Abstract: 211,249. Marsden, T., and Marsden, G. H. Nov. 25, 1922. Shuttle - boxes; change-box motions.-The slots a of a rotary shuttle box A are recessed or countersunk as shown and are lined with steel or other metal linings B, the edges of which come flush with the adjacent portions of the walls of the slots. The linings are held between the iron end plates of the box or, when they do not extend quite to the outer ends of the slots, by one end plate.
Patent GB-971693-A (GB)
Title: Improvements in or relating to concrete floors and structures incorporating such floors
Inventor: BLATCHFORD RALPH
IPC: E04B5/04
Filed: 1959-09-22
Abstract: 971,693. Floors for stables &c. RALPH BLATCHFORD & CO. Ltd. Dec. 22, 1960 [Sept. 22, 1959], No. 32279/59. Heading E1V. A floor structure for stables comprises a series of flat-based concrete beams or slats 1, Fig. 3, freely resting at their ends upon cross bearers 2 and spacer elements 3 interposed between the beams to maintain them in spaced relation to form a grid structure, the beams having a substantially T-shape cross-section, preferably with rounded top edges. The spacer elements may be removable and may consist of blocks which can be inserted several ways to provide different degrees of spacing. The spacer elements may each consist of a plate 6, Fig. 5, coacting with inclined surfaces on the beams, which is adjustable vertically, for example by a bolt and nut to vary the spacing between the beams. Plate-like insert members, which may be perforated, may be supported upon the beams to provide a continuous load-bearing surface.
Patent GB-324315-A (GB)
Abstract: 324,315. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 16, 1928. Dye preparations; oxyalkylamines. - Alkali metal compounds of oxyalkylamines (including oxyalkylcycloalkylamines) are used in making preparations of vat or sulphur dyes for dyeing and printing, with or without the addition of organic solvents, thickening agents or protective colloids, but in the absence of a hydrosulphite or other strong reducing agent. The alkali metal compounds are the products of the action of alkaline agents on the oxyalkylamines, and may be prepared either before or simultaneously with the preparation of the printing pastes or dye baths. In examples. (1) Indanthrene blue GC paste is mixed with dipropanolamine, potash and starch- British gum thickening, (2) Indanthrene violet 2R extra is mixed with cyclohexylethanolamine, potash and starch-British gum thickening, (3) Indanthrene olive G powder is mixed with triethanolamine dextrose, and caustic soda, (4) Kryogene direct blue B is mixed with glycerine, triethanolamine and an alkali thickening, and (5) ethanolamine is added to a bath containing Indanthrene yellow G paste, caustic soda and dextrose.
Patent GB-210912-A (GB)
Title: An improved gas compressor
IPC: F01B3/06
Filed: 1922-11-28
Abstract: 210,912. Grills, C. H. Nov. 28, 1922. Pump - actuating mechanism.-A gas compressor comprises a series of parallel pairs' of cylinders disposed around a rotating shaft having a boss formed with a groove D formed with bevelled sides, which causes conical rollers E engaging the groove and carried from the piston pairs, to reciprocate the pistons. As shown, guide blocks F are formed on the piston pairs, and carry shafts H on which the rollers revolve; washers i are interposed between the guide blocks and the rollers.
Patent GB-172950-A (GB)
Title: Improvements in or relating to leather packings for hydraulic presses, pumps and the like
IPC: F16J15/18
Filed: 1921-12-03
Abstract: 172,950. K÷hler, R. Dec. 20, 1920, [Convention date]. Cup-leather packing; packing, inserting and extracting; bushes.-Cup-leather packing A for hydraulic presses, pumps, &c. is secured in position by a segmental ring E formed with a flange entering a groove D<2>. The last-inserted segment of the ring E has a tapped hole to receive a handle for facilitating the insertion of the segment. The cup-leather A is secured in the known manner between rings C, R, the latter having perforations B<1> for admitting fluid pressure to the interior of the packing-ring, which has square surfaces engaging the ring B.
Patent GB-293057-A (GB)
Title: Improved type-bar action for typewriters
IPC: B41J3/36
Filed: 1926-12-23
Abstract: 293,057. Merz, F. Dec. 23, 1926. Portable type-lever machines.-An action, particularly for portable machines, of the kind comprising type-levers pivoted on a vertical segment and having pin-and-slot engagement with intermediate levers pivoted on a concentric segment is arranged in the following manner, chiefly for the purpose of reducing the vertical and frontto-rear dimensions of the machine :-Short typelevers g, Figs. 1 and 3, are pivoted on a vertical segment f and have slots g<1> engaging pins m<1> on radial intermediate-levers m pivoted on a concentric segment k and connected by links t to bell-cranks o having forwardly-extending arms o<1> carrying key-stems r which are guided vertically by apertures in a stepped plate s. The bell-cranks are pivoted on a rod n' at the bottom of the machine, and are arranged beneath the type-lever rest i. The arms o<1 >are arranged in sets of four which are of graded lengths corresponding to the positions of the four banks of keys. The arms o<2> to which are connected the links t are, as shown in Fig. 3, arranged in sets of four graded lengths corresponding to the lengths of the arms o<1>; moreover, to compensate for the arcuate arrangement of the levers m, the sets of arms o<2> are graded in length from the centre to the sides of the machine. To provide room for the type-levers, the distance between them increases from the centre to the sides of the segment, and the travel of the outer type-levers is greater than that of the central type-levers, the outer levers m being arranged to travel further than the inner levers m so as to increase the travel of the outer levers. To render uniform the initial angles between the levers m and the slots g<1>, the slots are formed at the bottom with steep parts g<2> which receive the pins m<1> of the outer levers m. Returning-springs p, Fig. 1, are connected to lugs o<3> on the arms o<2> and lugs n<3> on the support n of the rod n'. The support r and segment k are connected at the middle by a stay u. Specification 244,095 is referred to.
Patent GB-776010-A (GB)
Title: Improvements in or relating to hydrostatic gears, more particularly for vehicles
IPC: F16H61/46
Filed: 1954-11-10
Abstract: 776,010. Hydrostatic gears. EBERT, H. Nov. 10, 1954 [Dec. 19, 1953], No. 32595/54. Class 69 (2). An hydrostatic gear, comprises a pump 1 driven by the engine of a vehicle, a motor 2 driving the road wheels, and a valve 7 which functions as a clutch and permits slip between the pump and motor until the gear can transmit the full engine torque. When the engine is idling, a centrifugal governor 12 driven at a speed proportional to the engine speed allows the delivery of a pump 11 to return to a sump 17 via pipes 19, 16, and the pressure in a space 9 at one end of the valve 7 is reduced. A piston 8 in the valve is moved by a spring 10 and connects the delivery line 5 of the pump to the return line 6. As the engine speed increases, the governor 12 moves a valve 12<SP>1</SP> and thereby reduces the flow back to the sump 17 and the pressure in the pipe 19 and in the space 9 increases. The piston 8 is thereby moved to compress the spring 10 and cut off the connection between the pipes 5, 6 and the motor 2 is driven. The pressure in the pipe 19 and in the space 9 is limited by a spring-loaded valve 13. With a further increase in engine speed, a governor 27 moves a valve 23 controlling the piston drum 20 of the motor via a piston 21. The valve 23 is also operated by the accelerator pedal 31. A reversing device 33 is provided between the pump 1 and the motor 2, and selectively connects the pressure pipe 5 or return pipe 6 to the inlet and return pipes 5<SP>1</SP>, 61 of the pump.
Patent GB-749251-A (GB)
Title: Improvements in or relating to d.c. amplifiers
IPC: H03F3/40
Filed: 1952-12-23
Abstract: 749,251. Valve amplifier circuits. SANGAMO WESTON, Ltd. Dec. 23, 1952 [Jan. 21, 1952], No. 32641/52 Class 40 (6). In a D.C. amplifier, the flow of input current causes the moving system of a D.C./A.C. converter to be deflected thereby shifting the frequency of an oscillator feeding a frequency discriminator giving a polarized D.C. output, part of which is fed back degeneratively to the input. The circuit is described for measuring or control purposes. The coil 15, Fig. 3 is arranged to add an A.C. flux to the magnetic path of a moving coil instrument, so that when it is deflected by an input D.C., a corresponding A.C. voltage is fed out over transformer 17 or 22, Fig. 4. The valve 21 is maintained in oscillation by the tuned anode circuit 15, C4 feeding back through a triode to the grid of the valve 21. It is shown that the A.C. resulting from the D.C. input and fed over the valve 20 to the oscillating circuit causes it to increase or decrease in frequency so that the output from the diode discriminator 25 is a polarized D.C. A thermocouple 31 may be provided in the input circuit and a meter 32 in the output circuit with a resistor 30 to provide negative feed-back. The tuned circuits 15, C4 and 24, C3 are slightly overcoupled so that with the single peaked circuit 22, C1 a flat response results, Fig. 5C (not shown), the phase angle varying only slightly with frequency near the centre frequency. By the use of a suitable resistance provided by the tuning of the load on the moving coil, an in-phase component of current may be introduced into the coil to overcome the restoring torque of the leads. The feed-back circuit may be designed for differentiation or integration, current being integrated by feed-back through a capacitor and potential integrated by feed-back through a mutual inductor. Specifications 604,312 and 669,715, [Group XXXV], are referred to.
Patent GB-445953-A (GB)
Title: Improvements in or relating to ground-marking machines
IPC: E01C23/24
Filed: 1934-11-14
Abstract: 445,953. Line-markers for roads &c. TILKE, G. F., 131, Faveraham Road, Kennington, near Ashford, and BIGGLESTON, H., The Foundry, High Street, Canterbury, both in Kent. Nov. 14, 1934, No. 32819. [Class 132 (ii)] In a ground - marking machine suitable for marking broken lines on roads &c. and of the kind wherein a brush smooths the paint on the ground as it is delivered by a distributer, the brush is so mounted on the machine that it may be caused (for example, by a rotary movement) to move transversely in order to give a sharply defined end to the line. The machine is mounted on four ground wheels and carries a paint tank 28 connected by a flexible tube 32 to the perforated distributer 34 of inverted T - shape supported by a bracket 48 forming part of an auxiliary frame 36 which is pivoted to the main frame by a shaft 38. The flow of paint is controlled by a rotary valve actuated by a linkage 54, 56, 58, rod 66 and knob 68. Depression of the knob opens the valve, a stop 80 limiting the downward movement. The rod 66 is connected bv a screw-thread to the link 56 so that by rotating the rod the initial distance from the stop 80, that is the maximum opening of the valve may be adjusted. The auxiliary frame carries two sprocket wheels 82, 83 connected by a chain. A universal joint 100 connects the sprocket wheel 83 to a rod 96 terminating in a hand wheel 99 so that the sprocket wheels may he rotated by turning the hand wheel. The sprocket wheel 82, which is of ring-like shape carries, on bars 95 two vertical brushes 91 situated within the ring-like sprocket wheel slightly out of centre. The brushes brush the paint into the ground as it falls from the distributer 34. The bars 95 are mounted on a pivot 89 so that the brushes may move up and down to accommodate uneven ground. When the end of a line is reached the brushes may be given a rotation by turning the hand-wheel 99 so as to mark out a sharply defined end to the line. Two parallel adjustable plates 103 flank the brushes to determine the width of the line, and two parallel skate-like plates 105 support the pivoted auxiliary frame on the ground. The auxiliary frame may be rocked about its pivot 38 to raise the brushes from the ground, either by depressing a treadle 107 secured to the auxiliary frame or by turning a hand lever 110 connected by a wire 114 to the front of the auxiliary frame. When raised by the treadle, the auxiliary frame may be retained in the raised position by a catch 120. Instead of feeding the paint by gravity, it may be supplied under pressure by using the feed-regulating means described in Specification 427,049. A reserve tank 28<1> of paint may be carried on the apparatus. Specification 437,200 also is referred to.
Patent GB-895092-A (GB)
Title: Improvements in or relating to discharge slide valves
Inventor: KOCH UDO
IPC: F16K31/122
Filed: 1960-09-23
Abstract: 895,092. Valves. SCHWERMASCHINENBAU KARL LIEBKNECHT MAGEDEBURG VEB. Sept. 23, 1960, No. 32823/60. Class 135. [Also in Group XIII]  A rotatable container, such as a digester, having a discharge opening 1 controlled by a slide valve 2, and in which the axis of rotation is at right-angles to the direction of discharge, has a disengageable coupling 4 between the valve stem 3 and the rod 5 of a double-acting actuating piston 7. A switch 8 breaks the circuit of the motor that rotates the container when the coupling 4 is engaged and a switch 9 permits the motor to be switched on only when the piston 7 is fully withdrawn to the right.
Patent GB-263847-A (GB)
Title: Improvements in a method of manufacturing raw plate glass
IPC: C03B13/02
Filed: 1926-12-29
Abstract: 263,847. Bicheroux, M. Dec. 30, 1925, [Convention date]. Addition to 182,551. Rolling.-The receiving-table d of the rolling- apparatus described in the parent Specification is heated in order that the mass of glass b, which rests on the table, may be kept sufficiently fluid to be rolled out. The table may be heated by solid fuel i, as shown, or by suitable electric heaters, gas or oil burners, or by fluid circulated through pipes. Alternatively, hot fuel may be placed on the table and removed before a pot of glass is poured on the table.
Patent GB-184413-A (GB)
Title: Improvements in haulage clips for use in connection with colliery tubs and the like
IPC: B61B12/12
Filed: 1921-12-08
Abstract: 184,413. Griffiths, W., and Aldred, J. B. Dec. 8, 1921. Rope grips.-Comprises a rope grip in which the movable jaw d is pivoted at c<2> to a hand-lever c pivoted at c' to the fixed jaw a, and is retained in the gripping position by a pivoted catch h which engages a surface a<4> on the fixed: jaw, the engaging surfaces h<2>, a<4> being eccentric. The load is attached to the hook c pivoted to the movable jaw, so that the pull of the load tends to tighten the grip. If the grip pushes the load, the hook, when raised, bears against a part a<3> cf the fixed jaw, and this tends to tighten the grip. Either the fixed or the movable jaw orboth may be fitted with renewable liners.
Patent GB-1520263-A (GB)
Title: Pneumatic conveying systems
IPC: B65G53/40
Filed: 1975-08-07
Abstract: 1520263 Automatic weighing machine F J GATTYS VERFAHRENSTECHNIK GmbH 7 Aug 1975 [12 Aug 1974] 32955/75 Heading G1W An arrangement for metering material from a  pneumatic conveyer into a weighing means 2 comprises a pneumatic feed tube 1 for providing a coarse feed of material to the weighing means until a first predetermined weight is reached, a chamber 3 situated below the tube 2 and separated therefrom by a perforated wall 8 so that part of the material enters the chamber 3, and means in chamber 3 for providing a fine flow of material to the weighing means until a second predetermined weight is reached. Means 3 may include a screw conveyer, optionally provided with an outlet valve, or a vibratory conveyer. Valve 7 is closed when the first predetermined weight is reached.
Patent GB-1123927-A (GB)
Title: Box for building bricks
IPC: A63H33/04
Filed: 1966-07-22
Abstract: 1,123,927. Box for building bricks. A. FISCHER. 22 July, 1966 [9 Aug., 1965], No. 33098/66. Heading A6S. [Also in Division B8] Part of a box for storing building bricks, e.g. the lid, is adapted for interlocking engagement with the bricks which are themselves provided with grooves and tongues for interengagement, whereby said part may be used as a base-plate for the assembly of structures. Fig. 2 is an under plan view of a lid 2 having, on the inner surface of its flange, tongues 3 which engage grooves 4 of bricks 5, 6 and 7, and groove 12 of bar 9. Bar 9 has bores 11 into which spindles and rods can be plugged, and a longitudinal groove 15 into which connecting elements 8 may be inserted to form a rail as shown in Fig. 4.
Patent GB-411123-A (GB)
Title: Improvements in and relating to centrifugal machines for the separation of powdered or granular material or dust from gases
IPC: B04C5/12
Filed: 1932-11-30
Abstract: 411,123. Centrifugal dust-extractors. ALLEN, R. H., 19, Makepeace Avenue, Highgate, London. Nov. 30, 1932, No. 33198/33. Divided on 411,121. [Class 23.] The outlet of a dust extractor of the cyclone type is combined with one or more concentric curtains of sheet metal or the like, to subdivide the area from which discharging gas is withdrawn. The separator 1 has a tangential inlet duct 2 and the lower end of the clean gas outlet pipe 6 terminates in a sleeve 7 adjustably supported by bolts 18 and nuts 10. An inner sheet metal curtain 16 has a sleeve 17 adjustably supported by bolts 18 and nuts 20. In the example shown, the gas streams are discharged separately to pipes 22, 21. The additional curtain may be outside the outlet 6 and may be provided with adjustable slots. A fan may be used to create the gas flow, and the dust laden gas from the separator may be passed through a filter to the atmosphere, or to the suction of the fan. In a modification, the outlet and the curtain are bell-mouthed at their lower ends, and the gas streams passing through them are combined for discharge.
Patent GB-883776-A (GB)
Title: Improvements in or relating to the ornamentation of sheet materials
Inventor: WRENNALL LESLIE MYERS
IPC: D21G9/00
Filed: 1959-10-01
Abstract: 883,776. Ornamenting. BLEACHERS' ASSOCIATION Ltd., and BRADFORD DYERS' ASSOCIATION Ltd. Sept. 26, 1960 [Oct. 1, 1959], No. 33265/59. Class 93 Extensible sheet material is ornamented by forcible extension over its whole area, fixing in one or more selected regions only, and allowing or causing the material to relax, whereby the fixed regions pucker and become displaced from the normal surface to form into ruffles, ribs, frills, or the like. A continuous web, e.g. of polyvinyl chloride or polyethylene, may be fed between pairs of rollers defining two spaced nips, the rollers forming the first nip rotating at a slower speed than those defining the second nip to effect stretching. The stretched web between the nips may be led or held against a heated profiled shoe, plate or roller to fix the contacted stretched parts of the web. The relaxation after the second nip may be encouraged by immersion in a liquid, by subjection to steam treatment, or by contacting with a cold cylinder. Fixation of the selected stretched regions may also be effected by application of a fixing agent, e.g. a resin. Before, during, or after the treatment, the material may be printed or coloured. The process may also be applied to separate sheets. As shown, regions W1 and W2 are fixed regions, while W3 are unfixed regions.
Patent GB-1150202-A (GB)
Title: Improvements in or relating to Lactones
Inventor: MERIJAN ASHOT
IPC: C07D307/33
Filed: 1966-07-25
Abstract: 1,150,202. Halogen - containing lactones. GENERAL ANILINE & FILM CORP. 25 July, 1966 [25 Aug., 1965], No. 33408/66. Heading C2C. [Also in Division C4] Novel halogen-containing lactones of the formula wherein n is an integer from 1 to 3, R 1  is a C 2-6  haloalkyl or polyhaloalkyl radical and each of R 2  and R 3  is a hydrogen atom or a C 1-4  alkyl radical, except that when R 2  and R 3  are both alkyl, the alkyl radicals are methyl or ethyl radicals, are prepared by heating in sealed containers, in the presence of organic peroxides, the corresponding α-unsubstituted lactones and the appropriate halo-α-olefins or polyhalo-α- olefins in molar ratios of 5 to 20: 1. The compounds are useful as solvents for polymeric and other materials, as nematocides, as polymerization initiators and as polymerization inhibitors.
Patent GB-885152-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01P1/10
Filed: 1959-10-02
Abstract: 885,152. Cooling cylinders and fuel injection pumps. LINDE'S EISMACHINEN A.G. GES. FUR, [trading as ZWEIGNIEDERLASSUNG GULDNER-MOTOREN-WERKE, ASCHAFFENBURG]. Oct. 2, 1959 [Oct. 2, 1958], No. 33528/59. Classes 7(2) and 7(3). A cased flywheel fan 3 delivers cooling air to three in-line cylinders 17 through a cover 4 enclosing the injector supply pipes 8 of a fuel-injection pump 7 located in a compartment 12 from which the fan draws its air via a partannular opening 10 and which has an entry 13 coveredby a mesh or grid. A resilient seal 18 is provided. The wall 11 may be cast with or secured to the crankcase 1. An axial blower may replace the flywheel fan 3.
Patent GB-452975-A (GB)
Title: Improvements in and relating to hurdles for use on dog racing tracks
IPC: A63K3/04
Filed: 1935-11-25
Abstract: 452,975. Hurdles. SMITH, J. R., 35, Thornhill Road, Leyton, London. Nov. 25, 1935, No. 33661/34. [Class 45] A yielding hurdle for use on dog-racing tracks comprises a number of hinged boards A arranged side by side, each board being maintained in substantially upright normal position by a rubber tensioning member G. The boards A are provided with bristles E at their upper ends and are hinged to a board B secured by wedges F in supports C. A screen I is mounted below the board B. The boards are cut away at J to clear blocks D over which the rubber tensioning members G pass. The boards A may swing only in one direction, or double-action reversible hinges may be employed so that the boards may swing in both directions, in which case rubber tensioning devices are fitted on both faces of each board A.