baber/WOPTO huggingface dataset:
Patent GB-140563-A (GB)
Title: Electrolytic cell
IPC: C25B9/19
Filed: 1919-02-21
Abstract: 140,563. Harris, J. Feb. 21, 1919. Cells; diaphragms; electrodes; supporting; connexions; oxygen and hydrogen, obtaining.-Electrodes 6 are situated within openings in the sides of gas-collecting casings 4 and are spaced from the edges of the openings. The openings may be covered by diaphragms 7. As shown, the casings 4, which may be of cast iron or fibre, are supported by rabbeted insulating-bars 3 along opposite sides of the bottom of a tank 1. Each casing 4 is open below and closed at its upper end. Around the opening in each side of the casing is a flange 5, from which the electrode 6 is spaced by insulating-lugs. Fitting over the flanges of adjacent casings is a ring 8 perforated at its upper part to allow free escape of any gas which may be forced through the diaphragms by abnormal pressure. The edges of the diaphragms are clamped between the rings 8 and flanges 5. The electrodes 6, which, like the openings, may be of oval form. are provided on their operative faces with rounded bosses 6<a> arranged at different levels in adjacent vertical rows. The two electrodes in each casing are connected by a bar 14 to a conductor 13 which passes through an insulating- stopper 4b in the top of the casing. A gas exit is provided in each casing. A screw 10 and plate 11 clamp the series of casing and rings 8 together. The end openings of the series may be covered by caps 12. As electrolyte, a ten per cent solution of caustic soda may be used.
Patent GB-706418-A (GB)
Title: Improvements in or relating to electric signal amplifying or converting apparatus
IPC: G01S1/02
Filed: 1951-02-23
Abstract: 706,418. Electric amplifiers. SPERRY CORPORATTON. Feb. 23, 1951 [Feb. 23, 1950], No. 4441/51. Class 40 (4) [Also in Group XL (c)] In an electric amplifier, the stator 101 of a variometer 60 is energized by a constant A.C. exciting current and the rotor 102 which provides the output is controlled by the moving coil of a galvanometer and by stops which set a limit to the deflexion of the coil and to the amplification of the signal. In an A.C. amplifier, a spring-biased moving coil 38 carries a pointer 58, the movement of which is limited by adjustable stops 55. The magnetic core 43 carries an exciting coil 46. The stops may be fixed and the output is then adjusted by means of a potentiometer 67, Fig. 2, in the supply for either the exciting coil 46 or the variometer stator. If the input is D.C. the core 43 is a permanent magnet. The amplifier is employed as part of an aircraft navigation aid (see Group XL (c)).
Patent GB-544295-A (GB)
Title: Improvements in and relating to sheeps-foot rollers
IPC: E02D3/026
Filed: 1941-04-03
Abstract: 544,295. Rollers. JENNINGS, H. W. K. (Le Tourneau, Inc., R. G.). April 3, 1941, No. 4477. [Class 6 (i)] Each foot of a sheeps-foot roller 1 consists of a hollow member formed by four plates 3 welded at the edges to form a frustum of a pyramid which is capped by a square plate 4 welded to the plates. The feet are arranged in staggered relation.
Patent GB-782504-A (GB)
Title: Improvements in or relating to articles for hygiene and medicine
IPC: A61F13/00
Filed: 1954-02-16
Abstract: 782,504. Surgical dressings. SOC. ANON. DE L'ANCIENNE MAISON DEVAUD, KUNSTLE & CIE. Feb. 16, 1954 [Dec. 24, 1953], No. 4492/54. Class 81 (2). A surgical dressing comprises, on at least a portion of its surface which is adapted to contact the skin, a layer of synthetic non-absorbent fabric and in contact with this layer, at least one layer of absorbent material. The non- absorbent fabric 1 is knitted or woven svnthetic material, e.g. nylon or polyvinyl chloride, which is placed in contact with the body. The absorbent material 2 is cellulose, a cellulose compound or cotton. An impermeable backing 3 which may extend beyond the dressing and be provided with adhesive 5 for securing the dressing to the body, may be provided. The dressing may be in the form of a catamenial appliance (Fig. 4), absorbent material 2 being contained within a tubular layer of non-absorbent fabric 1 or a tube (not shown) formed partly from non-absorbent material 1 and partly from absorbent or impermeable material. Alternatively an impermeable layer may be enclosed with the absorbent material 2 in a knitted or woven tube of non-absorbent material (not shown).
Patent GB-215127-A (GB)
Title: Improvements in and relating to horticultural and agricultural crop-spraying apparatus
IPC: A01G25/14
Filed: 1923-02-16
Abstract: 215,127. Milward & Sons, Ltd., H., and Mole, S. N. Feb. 16, 1923. Lever-actuated pumps ; air vessels; waste liquid, returning ; delivery pipes. - A knapsack sprayer comprises a receptacle, a pump cylinder, an operating-lever connected through a rod and a lever with the piston rod of the pump, a valvecontrolled overflow pipe connecting the pump cylinder and the receptacle, an air cylinder having valve connection with the pump cylinder, and a multiple-jet spraying nozzle having connection through a flexible pipe with the air cylinder, the jets of the spraying nozzle being adjustable to different angles or distances apart. The operating-lever 18 is connected by a rod 16 with a lever 10 pivotally connected to the piston-rod 8 and to a link 12 jointed to a bracket 14 on the pump cylinder 7. The overflow pipe from the cylinder 7 extends to the top part of the tank 5 and is provided with a one-way valve 36. The spraying liquid enters the pump through a spring-controlled valve 24 and is forced through a pipe 25 and spring-controlled valve 27 into the air cylinder 26 from which it passes through a flexible pipe 28 to the nozzle body 31. Two or more outlet pipes or nozzles 29 are rotatably mounted in the body 31, the discharge being controlled by a tap 32. According to the Provisional Specification, air for expelling the liquid is compressed in the pump cylinder.
Patent GB-525016-A (GB)
Title: An improved arrester gear for aircraft
IPC: B64C25/68
Filed: 1939-02-11
Abstract: 525,016. Arrester devices for aircraft. BLACKBURN AIRCRAFT, Ltd., and TRUYENS, C.P.J. Feb. 11, 1939, No. 4544. [Class 4] Relates to devices of the kind in which a hook carried on an arm 11 is adapted to be lowered beneath the aircraft to engage a wire rope for arresting the progress of the aircraft. The arm is freely movable in a downward direction, but upward movement is resisted until a predetermined load has been applied thereto. The tendency of the hook arm to bounce is thereby eliminated. The arm 11, shown in its raised position in Fig. 2, is pivoted at 12 to a member 13 of the aircraft and carries a lever 14 pivoted to the rod 16 of a piston movable in an hydraulic cylinder 17. The cylinder has a damper valve 18 which allows liquid to pass, on the downward movement of the arm, from an inlet 23 past a spring- loaded ball 20 resting on an apertured seating 22. When the hook arm is moved upwardly, the ball 20 is raised against an upper seating 24. When the pressure is sufficiently great, the liquid is forced through a bye-pass 19 against a spring-pressed ball 25. The arm 11 may be moved slowly upwardly, the liquid flow then being insufficient to cause the ball 20 to move to its upper seating 24.
Patent GB-394281-A (GB)
Title: Improvements in vehicle bodies
IPC: B60N2/30
Filed: 1932-01-21
Abstract: 394,281. Road vehicles. SMITH, F. P., 264, Broad Street, Birmingham. Jan. 21, 1932, No. 4556/33. Divided on 391,551. [Classes 103 (ii) and 108 (i).] Seat backs, arrangement of.-A road vehicle is convertible from a four-seater to a twoseater by covering the rear seat space by a cover which also comprises the seat back of the rear seat. The seat back having the usual upholstery 15 is provided with side ,wings which are linked to the body sides by links 19, 20 so that it may swing up from the position shown in Fig. 3 to that shown in Fig. 4, wherein the seat back forms a cover 14 which conforms to the line of the vehicle, as shown in Fig. 1. To lower the cover to form a seat back the cover is first moved slightly, then the rear edge is moved downwardly, and its front edge rearwardly.
Patent GB-682571-A (GB)
Title: Zigzag sewing machine
IPC: D05B57/00
Filed: 1951-02-26
Abstract: 682,571. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Feb. 26, 1951, No 4566/51. Class 112. In a zig-zag sewing-machine having a needle-bar 28 reciprocated in a pivoted vibratory frame 31 by a crank 45 on a rotary shaft 15, the link 41 connecting the bar and the crank is located on the side of the pivot 32 of the frame opposite to the side approached by the beak 24 of a rotary loop-taker 23. The arrangement causes the needle penetration to be greater in the left hand position of the needle than in its right hand position, and compensates for the lateral shift of the needle relative to the axis of the loop-taker. Specification 676,942 is referred to.
Patent GB-415116-A (GB)
Title: Improvements in and relating to self-lubricating metallic surfaces
IPC: F16C33/20
Filed: 1933-02-15
Abstract: A resinous ester of a polyhydric alcohol and a polycarboxylic acid with or without a drying oil fatty acid is used as an adhesive for securing a paste of graphite or other lubricating powdery substance such as talc to metallic surfaces for the manufacture of self lubricating metallic bodies.
Patent GB-1418395-A (GB)
Title: Dual fluid pressure motor mechanism or unit
IPC: B60T13/563
Filed: 1973-01-30
Abstract: 1418395 Boosters MIDLAND-ROSS CORP 30 Jan 1973 [29 March 1972] 4679/73 Headings F2F A tandem booster has two pressure responsive movable walls each in a housing and having control means of the application of pressure to the walls and an output member, one wall and its output member being movable independently by fluid pressure with respect to the other wall. An actuating rod 38 from a brake pedal pushes a plunger 182 leftwardly allowing an annular valve 172 to engage a seat 175 to block communication between chambers 44, 42 on both sides of a diaphragm, via passages 158, 162, 164, 160 (the passage 158 being in permanent communication with the chamber 44). At this stage, the chambers 42, 44 are in vacuum. Further plunger movement lifts a seat 184 therewith from the valve 172 to allow atmospheric air passing through a filter 180 to the chamber 42 via passages 164, 160 thus moving the diaphragm; consequentially a cup member 98 causes two radial levers 192 to pivot about positions 201, the inner ends abutting the plunger 182. Further plunger and diaphragm movement acts through the levers 192 on to an output member 96 to actuate a similar plunger 214 associated with a second diaphragm for similar diaphragm operation. The atmospheric air is received through a sleeve 120 via channels 124 and via passages 222, 216, 218 to the associated valve seats. A second output member 116 actuates an hydraulic dual master cylinder control rod 32. Upon failure of either diaphragm, the associated plunger moves the corresponding output member mechanically.
Patent GB-939685-A (GB)
Title: Improvements in or relating to expansible broaching tools
IPC: B23D41/04
Filed: 1959-02-11
Abstract: 939,685. Broaching. SYKES & HEPWORTH (ENGINEERS) Ltd., C. L. SYKES, and J. C. HEPWORTH. May 11, 1960 [Feb. 11, 1959], No. 4718/59. Class 83 (3). A broaching tool comprises a blade 1 adjustable radially and axially of a body part 2. The axial position of the blade is determined by the angular position of a slotted sleeve 10 secured by a screw cap 13. The blade, which is loose, may be formed to be retained in the slot 7 in the body. The sleeve may be axially adjustable.
Patent GB-799957-A (GB)
Title: Variable range marking circuit with signal modulation for display identification
IPC: G01S7/22
Filed: 1956-02-15
Abstract: 799,957. Pulse radar; pulse generating circuits. GILFILLAN BROS., Inc. Feb. 15, 1956 [Feb. 21, 1955], No. 4781/56. Classes 40 (b) and 40 (7). In a pulse radar with an intensity modulated C.R.T., e.g. P.P.I. or type B, displaying selectively one of a plurality of ranges, range marker pulses are applied to the C.R.T. and the time interval between adjacent marker pulses is selected by a switch to correspond to one of a plurality of discrete range intervals, e.g. 1 mile and 5 inches, the relative amplitudes of the applied pulses being characteristic of the range increment. In the embodiment described 5-mile marker pulses C3, Fig. 1a, of equal amplitude are applied when the displayed range is 40 miles, and when the displayed range is 10 or 20 miles 1-mile marker pulses C1 and C2, Fig. 1a, are employed, the amplitude of the even pulses being greater than that of the odd pulses. As shown in Fig. 2, the marker pulses are derived from a Hartley oscillator 120 whose recurrence period is selected to correspond to 1 or 5 miles by means of a switch 122, the oscillator being gated on by applying a negative range gate A of selectable duration to cut off a doubletriode damping valve T121, T122. The output B from the oscillator 120 is applied through an amplifier 125 to trigger a blocking oscillator 200 and one pulse output C<SP>1</SP> triggers a monostable multivibrator 310 to produce a series of positive pulses each of duration slightly less than a period corresponding to a 2-mile increment, said pulses being inverted by an amplifier 320 giving a waveform D which is applied to the anode of the blocking oscillator so that when the switch 122 is set for 1-mile markers the amplitude of adjacent output pulses C (C1 or C2, Fig. 1a) is different but when the switch 122 is set for 5-mile markers the output pulses C (C3, Fig. 1a) are of equal amplitude. The output pulses C may be combined in a mixer 400 with cursor signals before application to the display. The trigger circuit 310 may be replaced by other forms of pulse counting circuits such as disclosed in Specification 682,910 and U.S.A. Specification 2,686,008.
Patent GB-897025-A (GB)
Title: Improvements in and relating to the suspension and tensioning of guide and rubbing ropes in vertical pit shafts
IPC: B66B7/06
Filed: 1959-02-11
Abstract: 897,025. Wire tensioning. DAVIES, E. A. Feb. 11, 1960 [Feb. 11, 1959], No. 4785/59. Class 45. [Also in Group XXX]. A guide rope 15 is tensioned and supported from girders 4 of pit headgear by springs 17, 18, having abutments adjustable by nuts 27 on a respective spindle 24. The lower end of each spring rests on a respective abutment 14 carried by a girder 8 bearing on the girders 4. The lower end of each spindle 24 has a projection 28 formed with a knife edge which engages an aperture in a bridge member 30 through a hole in which the rope 15 freely passes. The member 30 carries a wedging mechanism for gripping the rope 15. The adjustment of each spring is indicated by the position of a flange 41 against a scale 40. As shown, there are two guide ropes 15, 16, and two respective pairs of springs 17, 18.
Patent GB-212080-A (GB)
Title: Improvements in trolley harps
IPC: F16N7/12
Filed: 1923-02-19
Abstract: 212,080. Freeman, M. Feb. 19, 1923. Capillary-action lubricating.-The journal 13 of a trolly wheel 11 is lubricated by a wick 16 passing through a bore in the journal and dripping into an oil reservoir 12 formed in one or both of the jaws 15 of the harp, the nick being retained in contact with the bearing surface of the wheel by means of a coiled spring 17 wound on the wick. A pin 18 is inserted in the spring, the head of the pin resting against a cap 19. If both jaws 15 are formed with oil chambers, they are connected by a pipe 23.
Patent GB-1409381-A (GB)
Title: Thyristor circuit
IPC: H03K17/73
Filed: 1973-01-31
Abstract: 1409381 Triggering thyristors ALLMANNA SVENSKA ELEKTRISKA AB 31 Jan 1973 [1 Feb 1972] 4804/73 Heading H2F [Also in Division H3] The voltage supply for the control circuit of a thyristor is obtained from a potential divider connected across the thyristor comprising a resistor 4 in series with the parallel arrangement of a Zener diode 8, a varistor 6 and a capacitor 7. As described, capacitor 7 is charged through a diode 9 when the anode of the thyristor is negative and when it is positive it discharges via a rectifier 10 into a storage capacitor 7 supplying the power for pulse amplifier circuits 14, 17, 12 for the gate pulses of the thyristor. The Zener diode stabilizes the voltage across the capacitor. This diode, together with a varistor, also serves to reduce the transmission of pulses from the thyristor anode circuit to the pulse amplifier thus reducing spurious triggering. A further reduction may be obtained by connecting a capacitor 15 as shown, to offset the transmission of spurious pulses to the input terminal 13 via the collector-base capacitance of transistor 14. Additional protection from spurious triggering pulses may be obtained (Figs. 2 and 3, not shown) by short-circuiting the input to the gating pulse circuit via a transistor (20) controlled by a differentiating circuit connected across the supply line to the triggering pulse circuit. The thyristor shown may be one of a number in series, elements 2 and 3 serving to equalize the voltage thereacross.
Patent GB-1245500-A (GB)
Title: Production of lactones having from six to thirteen ring members and isobutyric acid
IPC: C07C51/235
Filed: 1969-01-29
Abstract: 1,245,500. Lactones. BADISCHE ANILIN- & SODA-FABRIK A.G. 29 Jan., 1969 [30 Jan., 1968], No. 4818/69. Heading C2C. Lactones having from 6 to 13 ring members and isobutyric acid are prepared by reaction of a cyclic ketone having from 5 to 12 ring members and isobutyraldehyde with molecular oxygen or a gas containing molecular oxygen at a temperature of 20 to 50 C. in the absence of a catalyst.
Patent GB-1127771-A (GB)
Title: Rolling mills
Inventor: STURDY CLIFFORD
IPC: B21B1/18
Filed: 1965-02-04
Abstract: 1,127,771. Rolling wire. DAVY & UNITED ENG. CO. Ltd. 31 Jan., 1966 [4 Feb., 1965], No. 4823/65. Heading B3M. A rolling mill train for rolling four strands of wire simultaneously, includes a number of mill stands in tandem, each stand including four roll pairs 21-24 in a common plane and positioned at the corners of a square. The roll pairs 21-24 are driven from a central gear-box 25 through shafts 22-29, while the roll pairs 11-14 of an adjacent stand are driven from two gear-boxes 15 and 18 through shafts 16 and 17, and 19 and 20 respectively. Alternate stands are driven by one, and by two gear-boxes, the central gear 32 in each gear-box being driven by a line shaft. The line shafts can be driven by meshing gears or by individual electrically synchronised motors. The roll pairs for given strand of wire are offset at 90 degrees to each other in adjacent stands. The gear-boxes 15, 25, and 18 are slightly offset from a vertical plane in order to allow all the shafts 16-20 and 22-29 to be of equal length.
Patent GB-563318-A (GB)
Title: Improvements in drawing instruments
IPC: B43L13/14
Filed: 1943-03-25
Abstract: 563,318. Mathematical drawing- appliances. SIMPSON, J. P., STEWART, J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 25, 1943, No. 4871. [Class 97 (iii)] An appliance for use in the drawing of trimetric projections comprises a flat member provided with at least one edge at right angles to a reference edge, the edges being sets of scale graduations of unit length, at least two other edges inclined at different acute angles in opposite directions and marked with scale graduations which differ from one another and are fractional parts of the said unit length and two further straight edges preferably formed as slots oppositely inclined at acute angles to the reference edge and marked with scale graduations which differ from one another and from the other inclined edges and are fractional parts of the unit length. Fig. 1 shows an appliance having a reference edge 10 and edges 11, 12 at right angles thereto, all of which edges are marked with scales of unit length, e.g. inches, two edges 13, 14 inclined oppositely at different acute angles and marked with scale graduations of different fractional parts of the unit length and four further edges 15 ... 18 formed as two slots and marked with scale graduations which differ from one another and from those of edges 13, 14 and are fractional parts of the unit length. In use, the horizontal and vertical lines of the drawing are drawn along the edges 10, 11 or 10, 12 and to unit scale, the other lines being drawn along pairs of edges 17, 15 or 18, 13 or 16, 14 according to the point from which the object is supposed to be viewed. To obtain other projections the appliance may be used with edge 11 as the horizontal reference edge and also with the appliance reversed, that is, with the normal upper face used against the paper. The Specification also mentions formulµ whereby the scales other than unit ones may be determined.
Patent GB-198030-A (GB)
Title: Improvements in methods of, and means for immobilising the lungs, or portions thereof
IPC: A61F5/30
Filed: 1922-02-20
Abstract: 198,030. Stewart, S. H., and Salt & Son, Ltd. Feb. 20, 1922. Respiration, appliances for promoting; body supports. -An appliance for restraining the action of parts of the lungs and serving also as a spinal support comprises non- rigid supporting and compressing means taking its required support and counter pressure from the pelvic bone. The appliance consists of front and back levers 1, 2 which are pivotally connected to the upper parts 3<b> of a U-shaped member 3 secured to a hip pad 4 and are provided at their lower ends with flexible, adjustable connections 5 to the member 3. Belts 6 and shoulder straps 7, 7a are connected to the levers 1, 2 to compress the lungs. Counter pressure is taken from a hip pad 9 on the opposite side of the body. The pad 9 is held in place by straps 10, 11, 16, 17 and by a leg band 15 connected to a lever 14 pivotally connected to the pad 9. The pad 9 encloses a V-shaped steel stiffener. In place of the strap 7a a number of straps may be employed in conjunction with a pad to put pressure on the apex of the lung. The provisional Specification describes also the use of hip pads of leather or aluminium with padded projections to engage the pelvic bone and attached to a garment shaped to the hips and legs. the use of a number of springs to spread the pressure of the pad 4, and apparatus held in place by a single hip pad in conjunction with a shoulder pad.
Patent GB-1351405-A (GB)
Title: Process and apparatus for the separation of gaseous mixture
IPC: B01D59/18
Filed: 1972-02-02
Abstract: 1351405 Separation of isotopes COMMISSARIAT A L'ENERGIE ATOMIQUE 2 Feb 1972 [3 Feb 1971 (2) 25 Feb 1971] 4888/72 Heading B1L Gases fractions, particularly isotopes, are separated by continuously introducing the mixture into a tube or tubes in which a standing wave pattern is established and removing the lighter MW fraction at the other end to the introduction. The means of introducing the standing wave may be independant of the introduction of the mixture.
Patent GB-1380572-A (GB)
Title: Separators
IPC: G01N30/72
Filed: 1971-02-18
Abstract: 1380572 Gas diffusion separation ASSOCIATED ELECTRICAL INDUSTRIES Ltd 18 Feb 1972 [18 Feb 1971] 4931/71 Heading B1L A gas separation membrane 10 for separating permanent from non-permanent gases has the gas mixture flowing in a circular path 20 across the surface of the membrane. The path is of small cross-sectional area but of such length that there is no impedence of gas flow.
Patent GB-432525-A (GB)
Title: Improvements in or relating to clutch plates
IPC: F16D69/02
Filed: 1935-02-15
Abstract: 432,525. Friction clutches. BORGWARNER CORPORATION, 310, South Michigan Avenue, Chicago, U.S.A. Feb. 15, 1935, No. 4993. Convention date, Oct. 8, 1934. [Class 80 (ii)] The driven plate of a friction clutch comprises a disc 8 having its peripheral portion divided into sectors by radial slots 9, adjacent sectors 10, 11 being bent outwards in opposite directions. The sectors may also be bent transversely or have their side edges bent laterally. Friction facings 13 and 15 are fastened to the sectors 10 and 11 respectively by rivets 14 and 16 engaging tongues 17 formed in the disc 8 by U-shaped slots 18. The spacing of the facings is limited by pins 26 extending through the sectors 11 and having a head 20 engaging the facing 13 and a head 21 engaging the sector 11 or the facing 15. Similar pins 19 may extend through the sectors 10. The pins may pass freely through the sectors or be secured thereto.