baber/WOPTO huggingface dataset:
Patent GB-1214037-A (GB)
Title: Apparatus for stabilizing the roll of a ship
Inventor: CANE PETER DU
IPC: B63B39/02
Filed: 1968-05-15
Abstract: 1,214,037. Ship stabilizers. VOSPER Ltd. 15 May, 1968, No. 23049/68. Heading B7M. The parent invention is improved or modified in that a rigid body 31, Fig. 2, with wheels 3 is mounted on an athwartships track 32 and has buffers 17 carried by pistons 15, 16, Fig. 1, the wheels being coupled to an hydraulic machine 1, which can operate as a pump or motor and is controlled by a computer 2 in response to signals from a roll-sensing device 3 that also detects the position of the body when it is close to either of stops 34. As the ship rolls the body reciprocates along the track and is retarded as it approaches either stop by the machine 1 pumping liquid from cylinders 13, 14 into an accumulator 6, valves 5, 11, 12 to protect the machine from pressure pulses being opened by the computer. When the body has been arrested by the machine, the latter acts as a motor to drive the body in the opposite direction and re-charge the cylinders. The stops alone can, if necessary, arrest the body, the computer closing the valves 5, 11, 12 shortly before the buffers make contact. When pressure-relief valve 46 opens, surplus energy is dissipated in a heatexchanger 10. A non-return valve 47 prevents pressure pulses from the cylinders travelling through the system when the buffers strike the stops. Another accumulator 21 renders the pressure at the cylinders substantially constant. Alternatively, the body is coupled to the machine by cables, Fig. 3 (not shown). There may be a separate machine for each of the wheels 3.
Patent GB-1502940-A (GB)
Title: Sliver opener roller
IPC: D01G15/92
Filed: 1976-06-04
Abstract: 1502940 Rollers SCHUBERT & SALZER MASCHINENFABRIK AG 4 June 1976 [26 June 1975] 23134/76 Heading F2U [Also in Division D1] A sliver opening roller has a replaceable clothing sleeve 3 which is retained on the roller body 12 by a resilient element 4, 40 which when. compressed axially by a clamping ring 5 spreads radially to grip the sleeve. Fig. 1 shows a spring ring 4 which is pushed up a flared portion 103 and Fig. 3 a pair of cup springs 40. Alternatively an elastic ring may be employed, Fig. 2 (not shown), or the clamping ring 5 may have an axially split end which expands when pushed over a flared portion of roller body 12. The clamping ring 5 may be held by screws 52, Fig. 1, or be itself screwed, Fig. 3, when a locking ring 6 is provided. A recess or threaded hole 22 can be provided in the end of the roller shaft to receive an extraction tool 23.
Patent GB-501139-A (GB)
Title: Controlling devices in weft replenishing mechanism for looms
IPC: D03D45/34
Filed: 1937-08-24
Abstract: 501,139. Looms with automatic weft replenishment. SMITH, R. H., and SHACKLETON, G. W. Aug. 24, 1937, No. 23148. [Classes 142 (i) and 142 (iii)] In a loom in which, on indication of weft failure, the main parts of the loom are stopped and a shaft 3 rotated a complete revolution to effect change of shuttle and finally by means of the cam'21, lever' 18a, and rod 19 to restart the loom, restarting is prevented unless the exhausted shuttle 9 and a full shuttle arrive in the box B at their proper times. A lever 7 pivoted on a second lever 11 and capable, by means of its foot 7a and a projection 10, only of lifting the lever 11 is pressed against a. swell 8 in the box by a spring 6. The lever 11 is connected by a rod 12 with a lever 13 slotted at 13b to engage a pin 23a on one 4 of a pair of catches 4 4a pivoted on an arm 15 mounted on a shaft 16. The catch 4a has a slotted connection with the arm 15 and its hook part is undercut as shown in Fig. 10 to lock with a projection as shown in Fig. 10 to lock with a projection c<1> on a lever 5 operated by a cam 2 on the shaft 3. The catches 4, 4a are connected by a spring 4x which tends to keep them together. When the shaft 3 has rotated from its starting position shown in Fig. 1 to a position in which the part a of the cam partly depresses the lever 5, the exhausted shuttle 9 should have arrived in the box B. If it has arrived both catches 4, 4a are drawn out of the path of the end c of the lever 5, but if the shuttle has not arrived the projection c<1> engages the catch 4a. When the part b of the cam 2 completes the depression of the lever 5 the full shuttle should have arrived in the box and drawn the catch 4 (or both catches. 4, 4a) clear of the end c of the lever. If the new shuttle has not arrived the catches will not be withdrawn. Thus, if either shuttle was not in the box B at the proper time, one or other or both catches 4, 4a will be engaged by the rising end c of the lever 5 and the shaft 16 turned. At the other end of this shaft 16 an arm 17 would move the rod 19 out of the path of the lever 18 operated by the cam 21 and the loom would not be restarted. Specification 10142/03, [Class 143], and 6473/11, [Class 143 (ii)], are referred to.
Patent GB-588929-A (GB)
Title: Improvements in or relating to automatic control systems for dirigible craft
IPC: G05D1/02
Filed: 1944-11-22
Abstract: 588,929. Automatic control systems. GLENNY, A. P., and SPERRY GYROSCOPE CO., Ltd. Nov. 22, 1944, No. 23167. [Class 38 (iv)] [Also in Group XXIX] Attitude; steering.-In an automatic steering system for a craft, the position of a control surface is under the influence of two or more control components, one of which is dependent on the angular acceleration of the craft and is under the control of one or more of the remaining control components so that it opposes angular acceleration of the craft away from the desired direction of motion, but does not oppose angular acceleration during the later stages of correction. In Fig. 2, inductive pick-offs A1. A3, A2, associated with a directional gyro, a rate-of-turn gyro and an angular accelerometer (not shown), respectively, are supplied from an A.C. source and produce signals, corresponding to the displacement, velocity and acceleration of a craft about a vertical axis, which are applied through transformers T1, T2, T3 to triode amplifiers V1, V4, V2, V3, respectively. Three control components are thus available from the secondaries of output transformers T4, T6, T5, the relative magnitudes of which may be preset by potentiometers P1, P3, P2. The outputs of these potentiometers are combined and constitute the input to an amplifier M supplying one phase of a two-phase induction servomotor operating the rudder, the other phase being supplied in quadrature from the A.C. source. Each control component influences the servomotor so as to oppose the effect producing it, To eliminate the acceleration component when the craft is being returned to course additional secondary windings on transformers T4 and T6 are connected in series and the resultant voltage applied to a voltage limiting circuit V6, V7 and the voltage across an additional secondary winding on transformer T3 is amplified by a triode V5 and applied to a voltage limiting circuit V8, V9. The arrangement is such that if the acceleration signal is opposite in phase to the resultant of the displacement and velocity signals, the voltages across the voltage limiting circuits are equal and opposite and a voltage is applied to a transformer T7 so that triodes V2, V3 are biassed to cut-off by the voltage developed across resistor R3 through rectifier V10. If the acceleration signal is in the same sense as the resultant of the displacement and velocity signals, no such bias is developed and the acceleration component is operative. Instead of eliminating the acceleration component under the above-mentioned conditions, its phase may be reversed, Fig. 3 (not shown). This is effected by transformer T7 controlling the bias of two pairs of push-pull triodes between transformers T3 and T5 so that one pair or the other is biassed to cut-off according to conditions.
Patent GB-600493-A (GB)
Title: Improvements in or relating to electron discharge amplifiers employing hollow resonators
IPC: H01J25/12
Filed: 1945-09-10
Abstract: 600,493. Velocity-modulated tubes. BARFORD, N. C. Sept. 10, 1945, No. 23333. [Class 39 (i)] In a velocity-modulation amplifier wherein the signal is fed into the buncher resonator 3 and wherein the amplified signal is taken from the catcher resonator 4, one or more further resonators is or are arranged between the buncher 3 and the catcher 4 in the path of the electron beam and are tuned to a frequency or frequencies different from the buncher and catcher frequency so as to increase the passband of the amplifier. Preferably, two such further resonators 10, 11 are used, one being tuned to a frequency slightly higher than and the other to a frequency slightly lower than the buncher and catcher frequency. The resonators 10, 11 may or may not have a common wall. Reference has been directed by the Comptroller to Specifications 530,251 and 553,266.
Patent GB-533577-A (GB)
Title: Improvements in and relating to electric gas blast switches
IPC: H01H33/70
Filed: 1939-08-14
Abstract: 533,577. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 14, 1939, No. 23404. Convention date, Aug. 12, 1938. Addition to 504,556. [Class 38 (v)] A gas-blast switch in which the gas-supply is controlled through a valve 8 which, during switching-on, can be coupled to the contact- . drive in stages, as in the parent Specification, has as couping means a cam 6 provided with a number of cam surfaces 5, each of which is engageable by one or other of the steps of a pawl 3, which is driven by a lever 2 from the driving shaft 1 of, or otherwise coupled to, the movable contact. The cam is free on the shaft but rotatable by the pawl on anti-clockwise rotation of the shaft 1 on switching-off. A plate 9 engages the pawl 3 to free it from the cam after the valve has operated, and carries a catch 10 which, when the lever 2 is rotated clockwise to switch on, prevents reverse rotation of the cam. By stopping the pawl 3, operation of the valve occurs regardless of whether the switch is closed or in an intermediate position.
Patent GB-354054-A (GB)
Title: Fountain penholder
IPC: B43K5/04
Filed: 1930-08-05
Abstract: 354,054. Reservoir pens. REICHENBACH, A., 7, Kaiser Friedrichstrasse, Pforzheim, Germany. Aug. 5, 1930, No. 23406. [Class 146 (iii).] In a collapsable-sac self-filling fountain pen, the sac e and an outflow tube g are carried by a sleeve f adapted to be removed from the barrel for filling purposes, the tube g projecting from the end of the sleeve f and entering an aperture in the end of the feed-bar b in communication with the duct leading to the nib. Leakage of ink into the barrel is prevented by a packing- ring k on the sleeve f and a spring m in the removable head d of the barrel. The end of the sac is clamped between the outflow tube g and the tapered end of the sleeve f. The sleeve is formed with a cut-out section f<1> to expose the pressure-bar h and spring i.
Patent GB-858308-A (GB)
Title: Improvements in or relating to detectors
Inventor: SMITH BERNARD OWEN
IPC: G01N27/20
Filed: 1956-07-30
Abstract: 858,308. Testing conductors for flaws. BRITISH IRON & STEEL RESEARCH ASSOCIATION. July 30, 1957 [July 30, 1956], No. 23434/56. Class 37 In testing for flaws, closely adjacent electrodes e g 16, 17 Fig 3 are brought into contact with opposite sides of the material tested, corresponding electrodes being connected to a source of current and to a measuring instrument respectively. The electrodes may be, as shown in Fig. 3, (fixed and carried by portable tongs or may be in the form of rotatable discs 35, Figs. 6 and 7 mounted on carriages 26 so that they can be traversed in contact with a travelling strip. The discs are held against the strip by pneumatic means and may be released automatically on reaching the end or side of a strip. During the traverse by reciprocating a frame comprising channel member 30 and a plate 44, extending above and below the strip, the carriages with the electrodes caster about their pivots 27 to avoid scratching the strip. Although shown at some distance from each other, the electrodes of a pair are only separated by the thickness of insulating material 20, 36.
Patent GB-295653-A (GB)
Title: Process and device for the televisual reproduction of stationary or moving pictures and objects by electrical means
IPC: H04N3/04
Filed: 1928-08-14
Abstract: 295,653. Szenyovszky, L., and Schulz- 'sche Akt.-Ges. f³r Feuerungstechnik und Bauunternehmung. Aug. 16, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Television. - The object or image a is explored by concentrically moving surfaces A with slots or rows of holes 1, 2 crossing each other at a constant angle. As shown, the surfaces consist of two discs and the slots 1 are in the form of the involute of a circle and the slots 2 in the form of the straight line describing the involutes. The slots are in similar relative positions at a number of positions a - - d on the discs, so that a corresponding number of identical objects or images can be simultaneously explored to obtain colour (Figs. 5-8, not shown), or stereoscopic reproduction (Figs. 9-12, not shown). The lightsurface at the receiver may be in the form of a ring (Figs. 13 and 14, not shown). The exploring surfaces may be cylinders (Figs. 15 and 16, not shown), or endless bands (Figs. 17 and 18, not shown).
Patent GB-1506598-A (GB)
Title: Needleloom for weaving a narrow fabric including single picks and method thereof
IPC: D03D47/04
Filed: 1975-05-29
Abstract: 1506598 Shuttleless looms W C ARNOLD 25 May 1976 [29 May 1975] 23509/75 Heading DIE The disclosure is similar to that of Specification 1506597 the claims relate to the embodiment wherein one set of half healds 19 remain stationary and the other set perform elliptical beat-up path, weft loops 30 being inserted in the upper shed, single wefts 27 being laid in the lower shed and beat-up being effected by the half healds after every upper shed is formed.
Patent GB-934961-A (GB)
Title: Improvements in or relating to methods for producing designs in an injection mold
IPC: B44C1/22
Filed: 1961-06-29
Abstract: 934,961. Etching. ROLL-DIE & MOLD DECORATORS Inc. June 29, 1961 [Nov. 28, 1960], No. 23514/61. Drawings to Specification. Class 100 (2). A process of producing a design on the surface of the cavity of an injection mould consists in roughening the surface by etching, engraving the design on a flat metal plate, filling the depressions in the plate with an acid resist, transferring the resist to a sheet of tissue, placing the tissue with the resist against the roughened surface, wetting the tissue with an aqueous solution, removing the tissue, leaving the resist on the surface, etching the uncovered parts of the surface to leave the reversed design in relief, removing the resist, and etching the surface to round off the corners of the design. The design may simulate leather. The resist may be a waxy bituminous material. The solution may be alcohol and water.
Patent GB-1135600-A (GB)
Title: Interchangeable workpiece centering device for machine tools
IPC: B23B23/00
Filed: 1966-05-26
Abstract: 1,135,600. Centres. H. WOHLENBERG K.G. 26 May, 1966 [11 June, 1965], No. 23638/66. Headings B3B and B3T. A tailstock centre comprises a conical nose 5 projecting from a flange 8 and a shank 7 connected to the collar by a frusto-conical neck 6. The centre is ejected by screws 10.
Patent GB-716366-A (GB)
Title: Improvements in or relating to the production of cellular polyvinyl plastics
Inventor: COOPER ALFRED
IPC: C08J9/10
Filed: 1950-09-27
Abstract: A dough is formed by heating a paste of a polymer consisting of polyvinyl chloride or copolymers of vinyl chloride with vinylidene chloride and/or vinyl acetate or mixtures of any of these or mixtures thereof with butadiene-acrylonitrile copolymer, and a temporary plasticizer consisting of a polymerizable solvent and after gassing and completion of the expansion, heating the cellular product until the residual solvent is polymerized. Specified polymerizable solvents are styrene, a -methyl styrene, o, m and p methyl and other alkyl styrenes, methoxy styrene, methyl or butyl methacrylate, and mixtures of styrene with acrylic esters and nitriles.  A non-polymerizing solvent such as acetone may also be present.  Azoisobutyric acid, dinitrile benzosulpho-hydrazide and diazo-aminobenzene are specified gassing agents, lead stearate a resin stabilizer, and hydroquinone, catechol, and tertiary butyl catechol as polymerization inhibitors. Specifications 572,588, 580,743 and 657,338 are referred to.
Patent GB-256077-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J21/02
Filed: 1925-09-23
Abstract: 256,077. Wade, H., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Sept. 23, 1925. No Patent granted (Sealing fee not paid). Vacuum tubes. - Electron emission from at least one electrode to a single anode is influenced by the space charge due to electron emission from at least one other electrode. The anode may be in the form of a helical wire 2 or the like, between an axial filament 1 and an outer cathode 3, which may consist of a helical filament or of a cylinder coated internally with oxide or the like and heated by an external resistance helix 9. Increase in the potential of the anode 2 causes an increase in the space charge effect due to the outer cathode and decrease in the current between the inner cathode and anode, especially if the saturation valve of this current has been attained.
Patent GB-506476-A (GB)
Title: Improvements in and relating to electric measuring instruments
IPC: G01R11/36
Filed: 1938-08-11
Abstract: 506,476. Supply meters. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 11, 1938, No. 23738. Convention date, Aug. 13, 1937. [Class 37] In order to minimize overload errors in an induction type energy meter by shunting a decreasing percentage of the current flux as the load rises, the current magnet comprises a U-shaped yoke 17, each leg of which is cut out in U - shape with slightly rounded enlargements 18, 19 so that the dimension d is slightly smaller than the dimension d<SP>1</SP>. Non- magnetic spacers 22, 23 fit over the end portions 18, 19. Prewound coils 27, 28, which may be formed of varnished copper strip, are placed over the magnet limbs and then T-shaped polepieces 20, 21 are forced into the U-shaped openings. The core limbs have sufficient resilience to spring apart and to lock the polepieces in place when these are pushed home. The spacers 22, 23 provide a slight gap in the magnetic circuit between the limbs and the polepieces and also ensure a tight fit. The yoke 17 and polepieces 20, 21 are formed of laminations held together by rivets or bolts, the upper rivets of the polepieces also serving to secure the magnetic shunt 32, which is spaced from the polepieces by non- magnetic washers 33. The magnetic shunt 32 is so dimensioned as to become saturated before the load limit of the meter is reached.
Patent GB-1516269-A (GB)
Title: Shelf structures
IPC: B62B3/00
Filed: 1976-06-09
Abstract: 1516269 Linen cart A H GRAVES 9 June 1976 [17 July 1975] 23818/76 Heading B7B In a linen cart, shelves 14 have flanges 42 captively retained between upper and lower ribs 38, 40 on the inner flanges 36 of inverted U-shaped rails 26, which include notches so that the outer flanges 30 may be secured around four vertical posts 24. Tubes 46, passing through holes in the rails 26 and welded thereto, are arranged around two or three sides of the cart. In an alternative embodiment, rail portions 64 along the open side of the cart 56 are pivoted at each end to the posts 24 and the middle and upper shelves 62, 60, which are secured to these rail portions, can be optionally pivoted downwardly to form a bin cart. The rails 26 are formed with notches 88 (Fig. 10) and the outer flanges 30 are bent around and welded to the posts 24. The shelves are slid between the ribs 38, 40 before the ends of the rails are finally bent round to meet each other and are welded together.
Patent GB-406360-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R15/00
Filed: 1932-08-26
Abstract: 406,360. Cut-outs protecting testing- instruments. STANDARD TELEPHONES & CABLES, Ltd., and TREVET, E. J., Connaught House, Aldwych, London. Aug. 26, 1932, No. 23877. [Class 37.] Measuring-apparatus comprises a multi. range meter M in circuit with a number of make-before-break relays R1-R3 operating at pre-determined current values to change the range of measurement, and an overload relay, which may be one of the relays R1-R3, for cutting the meter out of circuit. The overload relay may alternatively maintain current through one or more of the remaining relays, and it may operate an alarm signal.
Patent GB-204497-A (GB)
Title: Improvements in or relating to wire fabric reinforcements for the concrete foundations of roadways, tramways and the like
IPC: E04C5/04
Filed: 1922-09-05
Abstract: 204,497. British Reinforced Concrete Engineering Co., Ltd., and Hall, E. B. Sept. 5, 1922. Reinforced concrete.- Concrete road foundations are reinforced bv sheets of electrically - welded wire fabric in which the longitudinal wires near each edge are more widely spaced than the others, so that adjacent sheets may be overlapped with their longitudinal wires alternating to produce a continuous uniform mesh. In the form shown, the second and fourth wires are omitted from each edge of both sheets; in a modification, the third and sixth wires are omitted from the edges of one sheet, and the second, third, fifth and sixth wires from the edges of the overlapping sheet.
Patent GB-943467-A (GB)
Title: Coil springs
Inventor: FOSTER EDWIN EARL
IPC: G01B3/10
Filed: 1959-11-19
Abstract: 943,467. Coil springs. J. B. TIGRETT. Nov. 19, 1959, No. 23994/63. Divided out of 940,982. Heading F2S. A coil spring is made by prestressing a band of material transversely so that it tends to assume a transversely arcuate form having a convex and concave face and also by prestressing the band longitudinally so that it tends to form a coil, the inner surface of which is the convex face. In one coil spring made by this method, the transversely arcuate form precisely counteracts a natural cross-curvature imparted by the longitudinal stressing so that the band is flat. In another coil spring made by this method, the band is prestressed longitudinally and transversely in the same operation by pulling it over a die with a cross-curvature so that the marginal portions of the ribbon 78 are stretched more than the centre portion. As a result the coil 76 assumes the transversely arcuate form shown both when coiled and extended.
Patent GB-1437890-A (GB)
IPC: A47F3/10
Filed: 1974-05-31
Abstract: 1437890 Display cabinets UNCAS Mfg CO 31 May 1974 [23 Jan 1974] 24189/74 Heading A4B A display cabinet with transparent sides 11-14, a top 17 and a bottom 10 includes a turn-table platform 28 mounted for rotation about a vertical axis on the bottom 10 and carrying display fittings, e.g. shelves 45, 46, the platform 28 having parts protruding through slots 35-38 in the side 11-14 adjacent the bottom 10 to facilitate rotation of the platform, and one of the sides 14 being formed as a door to give access to the display fittings. The platform 28 is rotatable on a circular ball race 33 disposed between upper and lower plates 29, 30 secured respectively to the platform 28 and bottom 10. The cabinet has feet 62 with end recesses engageable with spherical formations 64 on the cabinet top 17 to facilitate stacking of similar cabinets.
Patent GB-626825-A (GB)
Title: Improvements in pivoted joints
IPC: A45C13/26
Filed: 1947-09-03
Abstract: 626,825. Door knockers ; hinges, PHILLIPS & CROSS, Ltd., and HOLLIS, W. J. Sept. 3, 1947, No, 24263. [Classes 65 (i) and 65 (ii)] [Also in Group XIV] A door knocker 11, provided with a cylindrical or part-cylindrical head 12, is pivotally attached to an attachment plate 13 provided with a part-cylindrical seat 16, the ends of which serve to prevent axial movement of the head. The latter is retained in the seat by means of a screw 21 or the like which is inserted through a circumferential slot 22 provided in the seat and engages in the head. An alternative tapped hole 23 for the screws is provided in the head.