baber/WOPTO huggingface dataset:
Patent GB-629944-A (GB)
Title: Improvements in and relating to apparatus for placing articles on trays
IPC: B65G47/14
Filed: 1944-02-18
Abstract: 629,944. Feeding-devices. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 18, 1944, No. 3032. Convention date, Feb. 22, 1943. [Class 117] [Also in Group XXX] Articles such as the bulbs of incandescent lamps are delivered to spaced openings in trays from an irregular mass assemblage by a device which first arranges them in rows corresponding in number to the rows of apertures in the trays, and subsequently delivers one at a time from each row to the apertures of the tray as the latter passes the delivery station. The bulbs 20 are carried to the delivery station in ten rows by belts 52 between which they hang, and are delivered one at a time by an escapement wheel, 78, a cover plate 79 preventing the accumulated bulbs from riding over one another. As each bulb leaves the escapement wheel, its movement is controlled by fingers 175 of a rotating wheel 177, guides 185 and air blasts 178, 189 so as to drop vertically into the holes of trays 23 which are fed in timed relation with the bulb delivery mechanism. The tray delivery device consists of a chain 119 carrying dogs 117, 118 between which the front and rear edges of adjacent trays are engaged; the apertures in the trays and those in the last and first rows of adjacent trays are equally spaced, and the detent wheel 78, delivery wheel 177, and sprocket 121 for driving the chain 119 are all driven by gearing from the same shaft by the motor 123. To accommodate bulbs of different sizes and shapes, the height of the shafts of the escapement and delivery wheel is adjustable, and also their angular timing position. The bulbs are supplied to the belts 52 from loose and irregular arrangement on a conveyer belt by rubber discs [see Group XXX]. The blades 134 of the escapement wheel 78 are pivoted and moved under the action of springs and a stationary cam so as to feather and prevent interference with the delivery of a released bulb. Similarly the fingers 175 of the delivery wheel are pivoted and hang loose after delivering the bulbs to the trays, being then under the control of a cam which holds them rigid during the rest of the cycle.
Patent GB-411787-A (GB)
Title: Improvements in gas turbine plant
IPC: F02C9/18
Filed: 1934-01-30
Abstract: 411,787. Gas-turbine plant. AKTIEBOLAGET MILO, 32, Kungsgatan, Stockholm. Jan. 30, 1934, No. 3143. Convention date, Feb. 1, 1933. [Class 110 (iii).] In a gas-turbine plant in which a powergenerating turbine 1 exhausts into a turbine 6 driving compressors 12, 14, for the charge air, a further compressor 16 is arranged to be driven by the power turbine. Conduits and valves are arranged so that at low-load or noload on the turbine 1, the compressor-driving turbine 6 may be cut out, the work of compression then being done by the compressor 16 acting alone. During normal working the compressor 16 may be in series or in parallel with the compressors 12, 14, or may be rendered inoperative by a clutch 39. The plant comprises a cooler 18 in the compressed air pipe into which water is sprayed, a regenerator 8 heated by exhaust gases, and a combustion chamber 23. In a modification the exhaust of the turbine 1 is reheated on its passage to the turbine 6.
Patent GB-153502-A (GB)
Title: Improvements in accommodation ladders for marine vessels
IPC: B63B27/14
Filed: 1920-02-02
Abstract: 153,502. Sims, E. J. Feb. 2, 1920. Ladders.-The stairway of an accommodation ladder for marine vessels is supported normally edgeways on one side of the deck 19 of a vessel by means of a swinging arm 32, Fig. 1, having an angular rest 34 supporting one of the stringers 11, 12, which swing on a pivot 14 attached to one side of the platform 15. When the ladder is not in use, the platform 15 extends vertically above a pivot 16. When the ladder is to be used, the platform 15 is swung out into an horizontal position, carrying the stairway 10 with it. The stairway can then be lowered to an inclined position by a chain &c. 40. Co-axial with the pivot 16 is a segmental gear 25 in mesh with a pinion 26 on a long shaft 27 turned by means of a second pinion in mesh with a segmental gear 31 mounted on a pivot 33 of the framing 28. The gear 31 is secured to the arm 32 which carries the stairway 10 edgeways on the bracket 34. The chain &c. 40 is attached to the bracket 34 and extends over guide-pulleys 41, 42 and is wound on and off a drum 50 mounted loosely on a shaft 51. The shaft can be rotated by means of a handle 68 on a worm shaft 65 or by means of a winch, the worm 64 being connected by gearing 63, 61, 60 to the shaft 51, which has a coneclutch 52, 53 through which the drum 50 may be driven. The gear-wheel 61 is also in mesh with a gear 70 mounted to slide on and to turn with the shaft 27. The position of the gear 70 is regulated by a hand-lever 73, to connect or disconnect the shafts 27 and 51. In lowering the ladder from its position against the side of the vessel, the shafts 27, 51 are at first connected through the sliding gear 70. The stairway 10 and platform 15 can then be lowered together. When the platform reaches the horizontal position, the shaft 27 is disconnected from the shaft 51 and the movement of the latter is stopped leaving the stairway 10 suspended from the chain 40. The clutch parts 52, 53 are then disconnected, leaving the drum 50 loose on the shaft 51 and free to unwind. The weight of the stairway 10 then causes it to descend to the inclined position ready for use. Further movement of the stairway can be checked by re-engaging the clutch parts 52, 53. The hinged landing platform 80 and the hand-rail 81 are folded up when not in use. The stair treads 13 may be attached each to brackets 90 pivoted at 91 to the stringers 11, 12 and attached by pivots 92 and a link 93 to a bracket under the platform 15. When the stairway is drawn up into horizontal position, the treads lie all in the same horizontal plane.
Patent GB-1222441-A (GB)
Title: Improvements in or relating to alternating current potentiometers
Inventor: YORKE ROBERT
IPC: H03H7/18
Filed: 1968-01-22
Abstract: 1,222,441. Phase changing. J. J. LLOYD INSTRUMENTS Ltd. 15 Jan., 1969 [22 Jan., 1968], No. 3255/68. Heading H2F. [Also in Division G1] A circuit for establishing in a voltage divider R 4  an adjustable current in quadrature with that in another voltage divider R 3  supplied from a source V comprises a variable mutual inductor L1, L2 having one winding in series with each voltage divider, and capacitance C connected across R 3  to compensate for the phase error caused by the inductance of the winding L 2 . An expression is given for the value of C, which is independent of frequency and of the current in R 4 .
Patent GB-1475827-A (GB)
Title: Load supports
IPC: B66C1/12
Filed: 1975-01-24
Abstract: 1475827 Bulk material bag; slings F NATTRASS 1 May 1975 [24 Jan 1975] 3309/75 Headings B8K and B8H A support for a load to be lifted comprises a fabric support member on or in which the load may be placed, the member having edges which are folded to a shape which is concave away from the body of the member, the folded over part of each folded edge being stiched to the main body of the member to form a tunnel, a lifting sling extending through each tunnel to form a lifting loop. A sling, Fig. 3, comprises a length of woven polypropylene 7 having cuts 14, 15 at each end to form flaps 16, 17, 18 which are folded back along a concave curve and stitched at 19 to define tunnels 12, 13 through which lifting loops 20, 21 extend. The sides of the sling may be joined by straps 9, 10 and a buckle 11. A bulk material bag, Fig. 4, which may be cylindrical or, as shown, square, has walls 23-26 divided at their upper edges by cuts 31. The free edges of the walls are folded back along concave curves and stitched to define tunnels 27-30 through which a drawstring 33 is passed to define lifting loops 34-37 at each corner of the bag.
Patent GB-832606-A (GB)
Title: Improvements in aeroplanes
Inventor: WALLIS BARNES NEVILLE
IPC: B64C3/40
Filed: 1954-02-04
Abstract: 832,606. Aircraft. VICKERS-ARMSTRONGS (AIRCRAFT) Ltd. Jan. 6, 1955 [Feb. 4, 1954], No. 3388/54. Class 4. An aeroplane has a body/wing combination stabilized and controlled as claimed in Specification 595,464 and has an after part in two sections, each carrying a wing and movable about an axis parallel to the OY axis. The sections B and Care pivotally connected at 33 to a fore-part A and are free to move to different extents as much as links 35 on universal bearings 36 and as gaps 38 allow, under the control of jacks 48B, 48C. On each section a wing D is pivoted at 37 and is traversed in sweep by driving a pinion 44 engaging a rack 45. The craft is propelled by jetpropulsion units E, to which are mounted on each section B, C, to pivot with it and thereby assist control. Intakes for the units E are indicated at e. When the wings are swept aft they are shrouded by pockets in the after part. By control of the pitching movement with the pivoting of the after part relatively heavy expendable loads can be disposed remote from the centre of gravity. Specification 832,180 also is referred to.
Patent GB-983428-A (GB)
Title: Apparatus for scattering material from aircraft
IPC: A01C17/00
Filed: 1964-01-27
Abstract: 983,428. Fertilizer distributers. VYZKUMNY A. ZKUSEBNI LETECKY USTAV. Jan. 27, 1964 [Jan, 25, 1963], No. 3418/64. Heading A1D. A fertilizer distributer for aircraft comprises an adjustable part cylindrical opening at the bottom of a hopper from which material is fed to a centrifugal disc 5 by means of a quantity regulating disc 4 provided with fins 19, the disc 4 being rotatable and vertically adjustable, to vary the amount of material discharged, by means of a control cylinder 12 operating through a bell-crank lever 13. The lower position of the disc 4 is determined by a stop 16 which is adjusted by means of a set-screw 14. The opening comprises a fixed part 2 and a displaceable part 3. The disc 5 is driven by bevel gearing from a drive shaft 9 and the disc 4 is driven by a differential planetary gear.
Patent GB-126736-A (GB)
Title: Improvements in and relating to Mounts or Stands for Machine Guns.
IPC: F41A23/08
Filed: 1917-03-09
Abstract: 126,736. Birmingham Small Arms Co., and Norman, G. March 9, 1917. Tripod and like mounts for machine guns. - Consists in a folding and portable two-legged stand for a Lewis or other machine gun, in which the gun can be trained to a limited extent without moving the legs, and can be rotated to keep the sights in the vertical plane. In the construction shown in Figs. 1 and 2, the gun 3 is mounted, so as to be capable of part rotation about its axis and of a limited training movement, in two swivelling clamping-pieces 7, 8 mounted in upper and lower yoke pieces 1, 2 which surround the gun. The legs 12 are mounted on the upper yoke piece by inclined pivots so that, when lowered, they splay outwards, but, when raised, they lie parallel close together along the gun. The legs are secured on their pivots by nuts 16, and the joint boss 15 of each leg is formed with teeth engaging corresponding teeth on the upper yoke piece so that the legs can be adjusted and locked in any desired position. Handles 17 are provided for carrying the gun and stand, the handles being preferably mounted on the clamping-nuts 16.
Patent GB-208046-A (GB)
Title: Improvements in and relating to disintegrators for grinding or powdering grain, coal, bricks and the like
IPC: B02C13/00
Filed: 1923-02-06
Abstract: 208,046. Harrison, Carter, Ltd., J., May C., and Barradell, L. Feb. 6, 1923. Impact pulverizers.-The casing of a disintegrator for grinding or powdering grain, coal, bricks, &c. is made in halves A, C, Fig. 1, bolted together and provided with four equal grinding-sections B which slide into the casing endwise and can be withdrawn without dismantling the casing, the interior of the grinding-chamber being free from bolts, nuts, or pins. Each half of the casing houses two sections B, and the two sections in the lower half C are fitted with cross-bars to serve as screens, the two upper sections being plain or corrugated. Or all four sections may have crossbars to serve as screens. The four end-doors G of the casing are secured by swing bolts, and each door carries a set-screw to adjust and hold in place the sections B. The beater-disc carried by the shaft D comprises a portion J, Fig. 5, keyed to the shaft and having recesses to receive the beaters which are held in place by a piece K screwing on the boss L of the piece J. The beaters may have T-heads and plain or clumpheaded tips.
Patent GB-1496576-A (GB)
Title: Method for controlling an optical characteristic of a material and to an analogue imager for carrying out said method
IPC: G02F1/133
Filed: 1975-01-27
Abstract: 1496576 Matrix displays COMMISSARIAT A L'ENERGIE ATOMIQUE 27 Jan 1975 [6 Feb 1974] 3483/75 Heading G5C [Also in Division G2] To control an optical characteristic of a material between two electrodes, signals of the same frequency and with the same arithmetic mean value are applied to each electrode and the relative phase thereof is varied and assumes a value between 0 and # for at least part of the. time. The preferred embodiments relate to control of the birefringence of a nematic liquid layer (MBBA), which is proportional to the square of the applied potential difference, using rectangular or sinusoidal signals, but the optical characteristic may also be opacity, refractive index, transparency, absorption, diffusion, diffraction, rotatory power, or intensity of reflection, and may be varied in response to magnetic, thermal or electronic constraints, produced in response to the electrical signals. Also particularly referred to is the use of electrical heating to displace the absorption band of CdS, and the electrostatic deformation of a reflecting membrane. The relative phase may be varied in steps, or continuously, such that the optical characteristic is generally proportional to the amplitude of an input control signal. In a coincidence addressed X-Y array, column electrodes are scanned with a reference alternating signal, and the line electrodes are addressed in parallel with signals derived from the reference signal by phase shifting.
Patent GB-1001948-A (GB)
Title: Process for the preparation of dispersions of olefine homo-and copolymers containingpositively charged polymer particles, and dispersions prepared by this process
IPC: C08J3/07
Filed: 1963-01-28
Abstract: An aqueous dispersion of a homopolymer of an a -olefine or a copolymer of an a -olefine with an a -olefine or vinyl acetate, in which the solid particles are positively charged, is manufactured by emulsifying a solution of the polymer in an organic solvent, immiscible with water, with an aqueous solution containing as emulsifying agent 4-20% of a salt of a weak acid with a tertiary amine of formula <FORM:1001948/C3/1> where R is a C8- 22 alkyl and n is 1-30, or wit a quaternary ammonium hydroxide of formula <FORM:1001948/C3/2> where R and n are before, and then distilling off the organic solvent.  The a -olefine may be ethylene or propylene. 0.0005-10% of a polyacrylamide may be incorporated with the aqueous solution as a creaming agent and after removing the solvent for the polymer the dispersion may be concentrated.  The emulsifying agent may be the salt of acetic acid with the condensation product of stearyl or oleyl amine and ethylene oxide (molar ratio 1 : 2-60). The organic solvent may be hexane or benzene.
Patent GB-647418-A (GB)
Title: Apparatus for use in planting
IPC: A01C11/02
Filed: 1948-02-09
Abstract: 647,418. Agricultural implements. WEARNE, P. A. Feb. 9, 1948, No. 3740. [Class 6(i)] A planting attachment for a tractor comprises a pair of parallel tool-bars 1 on which are mounted longitudinal bars 2a, 2b, 2c, carrying furrow-opening tools and closing tools 7 and 8 and rollers 9, the longitudinal bars being laterally adjustable. Operators, sitting on seats 15 at the rear ends of further bars 16, manually set the plants. The rear ends of all the longitudinal bars are secured to a transverse bar 3. Wheels 5 mounted on the frame are adjustable by screw devices 6. The machine may incorporate mechanical means for feeding plants to the furrows.
Patent GB-852652-A (GB)
Title: Improvements in or relating to electric lamps particularly for aircraft
IPC: B60Q1/05
Filed: 1958-02-05
Abstract: 852,652. Lamps for aircraft. HARLEY, M. C. Jan. 30, 1959 [Feb. 5, 1958], No. 3776/58. Class 75(4). An electric lamp, particularly for use on aircraft, comprises an outer casing d, a reflector e.g. a parabolic reflector mounted in spaced relation to the casing by distance pieces h so that air from in front of the reflector can circulate behind the reflector and an electric light source a carried on and in close thermal contact with a metallic supporting member b mounted on the casing behind the reflector. The supporting member may have a part c of relatively large area supported by distance pieces l from the casing d.
Patent GB-1593132-A (GB)
Title: Treatment of waste water or waste water-containing liquid
IPC: C02F9/00
Filed: 1978-01-31
Abstract: In the process, the waste water is cleaned by, before an aerobic biological treatment, carrying out a physico-chemical pretreatment, the impurities being floated using finely disperse gas bubbles and then skimmed off. The excess sludge from the aerobic biological treatment is fed back into the physico-chemical treatment stage. The resulting floated layer to be discharged from this physico-chemical treatment stage forms the only separation product.
Patent GB-104728-A (GB)
Title: Improvements in or relating to Sole-levelling Machines.
IPC: A43D89/00
Filed: 1916-03-14
Abstract: 104,728. British United Shoe Machinery Co., (United Shoe Machinery Co.). March 14,1916. Sole-levelling.-In a sole-levelling machine of the type in which a jack is oscillated relatively to a levelling-tool, means are provided for varying the travel of the jack in accordance with the relative adjustment of the toe and heel posts towards and from one another for the size of shoe; additional means are provided initially to adjust the mechanism for operating the jack according to the stvle of shoe. The invention is described as applied to a twin leveller of the vibrating-roll type, and preferably one in which the toolvibrating means is of the kind described in Specification 104,714, while the jack is provided with a toe post 15 and heel post 16 fulcrumed upon the toe post at 17 and adjustable relative thereto through a threaded member 18, as described in Specification 103,849. The jacks are oscillated from a path cam through connexions with a single lever 21 pivoted on the machine frame at 25 and connected to a pair of slotted arms 45, which are also pivoted to the frame at 25; each arm 45 is connected through an actuating-lever 37, a second slotted arm 40, and an arm 41 with its respective jack, so that the size adjustments of the jacks may be effected independently of each other. An arm 30 extends from the heel post 16 and is connected through a link 35 to one arm of a bell-crank 31 fulcrumed at 32 on the toe post. The other arm of the bell-crank is pivoted to a head 56 forming part of an adjustable connexion 38 to the lever 37, so that when the member 18 is actuated to adjust the size of the jack, the lever 37 is set automatically to vary the travel of the jack. The initial adjustment of the mechanism to the style of the range of shoes to be treated is effected by adjustment of the connexion 38, which comprises a member 50 journaled in a head 51 connected to the upper end of the lever 37, and provided at one end with a hand-wheel 55, and at its other end with a thread to engage the head 56; the member 50 is secured against longitudinal movement by collars 53.
Patent GB-1132231-A (GB)
Title: Improvements in or relating to transistor drive circuit arrangements
Inventor: PICKSTOCK BARRY THOMAS
IPC: H03K4/64
Filed: 1965-01-28
Abstract: 1,132,231. Transistor switching circuits. MARCONI CO. Ltd. 8 Dec., 1965 [28 Jan., 1965], No. 3822/65. Heading H3T. A driving circuit for a transistor comprises a transformer having its secondary in the baseemitter circuit of the transistor, a switch device in the primary circuit, a constant voltage device across the primary, effective when the switch is made and a constant voltage device in series with the secondary, effective when the switch is open. Transistor VT, when conducting supplies a constant current at its emitter, biasing diode DZ to its Zener voltage so that a linearly rising current flows in the primary winding of the transformer. Resistor RV1 is adjusted so that the resulting secondary current saturates transistor VT1. When the input transistor is cut off the primary becomes open circuited, D2 blocking forward current in DZ. The back e.m.f. in the secondary biases VT1 to cut off and provides reverse current to remove stored charge carriers. Zener diode D<SP>1</SP>Z is chosen such that the decay time exceeds the charge removal time and ensures a linearly decaying reverse current. When the charge has been removed, diode D1 carries the decaying current. Diode D3 short-circuits RV1 during the reverse current period. The circuit may be used to supply a sawtooth current to deflection coils or in a pulse-type current regulator.
Patent GB-1425541-A (GB)
Title: Dc motor and power supply therefor
IPC: H02M7/217
Filed: 1974-01-28
Abstract: 1425541 Control of D.C. motors SPERRY RAND CORP 28 Jan 1974 [12 March 1973] 03823/74 Heading H2J A permanent magnet D.C. motor 10 is operated at a reduced voltage from an A.C. supply 16 by the circuit arrangement shown, wherein for alternate half-cycles of the supply current is supplied to the motor through diodes 22, 29 and a capacitor 18 which is consequently charged and for the other half-cycles of the supply a transistor T1 is switched on to discharge the capacitor through the series circuit comprising the motor and a diode 44. When first switching on, the discharged state of the capacitor produces a high motor starting torque. Application of the invention to an electric shaver is envisaged and a modified circuit is described, Fig. 4 (not shown), wherein the diode 44 is shunted by a lamp which indicates connection to the A.C. supply and illuminates an area adjacent to the cutters of the shaver. In this modification a PNP transistor is used.
Patent GB-524728-A (GB)
Title: Improvements in liquid emulsifying apparatus
IPC: B01F3/08
Filed: 1939-02-06
Abstract: 524,728. Emulsifying apparatus. BRITISH EMULSIFIERS, Ltd., and CURZON, T. Feb. 6, 1939, No. 3865. [Class 1 (i)] In an emulsifying apparatus of the kind in which a reciprocating pump is operated by a rotary handle, the pump plunger, or an extension g thereof, carries at its upper end a pin f eccentrically mounted in a pinion e which meshes internally with the rotatable gear wheel d, the pinion being maintained in proper location relatively to the gear wheel by a spring h. Specification 448,775 is referred to.
Patent GB-870647-A (GB)
Title: Purification of phthalonitriles
Inventor: GASSON EDWARD JAMES
Filed: 1959-02-04
Abstract: Phthalonitriles produced by the catalytic vapour phase reaction of xylenes with ammonia and oxygen are purified by the process of the parent Specification with the modification of washing the crude product with hot water.  In an example crude isophthalonitrile is dispersed in water in the presence of a surfaceactive agent, superheated steam is blown in and water distilled off, the mixture filtered hot and the residue of isophthalonitrile washed with boiling water.