baber/WOPTO huggingface dataset:
Patent GB-243629-A (GB)
Title: Screening system and screens
IPC: B07B1/42
Filed: 1925-06-12
Abstract: 243,629. Cross, W., (Roberts & Schaefer Co.). June 12, 1925. Sieves with compound motion. - Screening apparatus comprises one or more pairs of superposed screens held by flexible, supports at their discharge ends and by means at their feed ends which imparts a gyratory movement to both. In the construction described a number of pairs of screens B, D, H, H<1>, J, J<1> are mounted on a. frame A, and are preferably arranged so that the lower screen of each pair has the same size of mesh while the mesh of the upper screens is of decreasing size. The screens are supported at their discharge ends by flexible straps or plates G, G', and at their feed ends are mounted on oppositely disposed eccentrics on a shaft C. The screen frames comprise side members B<3>, cross-bars B<4> - - B<6>, bars B<8> for clamping one end of the screen, and screen-tensioning means consisting of bolts B<10> and clampingbars B<13>, B<15>. The members B<3> are provided on the inner sides with longitudinal bars B<16> and adjustable inclined cover plates B<17> to support and cover the edges of the screen. The tension adjusting devices are covered by plates B<14>. The upper screen, of each pair is provided with a lateral discharge shoot E, and the lower screen with a collecting plate D<6> which delivers the fines ,to a shoot D<12>, the tailing from the lower screen of each pair being delivered to the next pair of the series.
Patent GB-1504563-A (GB)
Title: Ghost signal erasing system
IPC: H04B1/10
Filed: 1975-04-14
Abstract: 1504563 Erasing ghost signals; surface wave delay lines MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 14 April 1975 [18 April 1974] 15314/75 Headings H3U and H4L In a ghost signal erasing system, wherein the i.f. signal as detected in unit 24, is combined in circuit 25 with a delayed version of itself, the delay time, and amplitude of the delayed version being adjusted so that the ghost component of the original signal is cancelled, the variable delay arrangement, Fig. 2, comprises an acoustic surface wave delay line, switch elements 5-1, 5-2 being set in accordance with the required delay time. Selection of one of the electrodes 7-1 to 7-m, and 4-1 to 4-n in each of the input, output transducers respectively provides fine and coarse respective divisions in the possible delay times. Alternatively, Fig. 1 (not shown), there may be a single input transducer switch (5) enabling selection of one of output transducer electrodes (3-1) to (3-n) in number as many as the number of desired possible delay times. Damping material 6 is provided on the piezo substrate 1. Typical dimensions, materials, and delay times are disclosed. Amplifier 11, or 22 compensates the delay arrangement insertion loss. The cancelling circuit 25 comprises a phase splitting arrangement (28, R 1 , R 2 ) Fig. 5 (not shown) receiving the delayed, detected signal (e) Fig. 4 (not shown), the polarity and amplitude of the delayed version, being set using potentiometer (29), amplified by transistor 30, and combined with the direct signal (f, Fig. 4) fed to terminal 34, in circuit (31, 32, R 7 , R 8 , R 5 ) to provide signal (h, Fig. 4) at terminal (35) with the ghost removed, but having a small residuum, of second order of smallness as compared with the original ghost.
Patent GB-1482215-A (GB)
Title: Phase sensitive detector circuits
IPC: H03D1/22
Filed: 1974-04-08
Abstract: 1482215 Phase sensitive detector BROOKDEAL ELECTRONICS Ltd 8 April 1975 [8 April 1974] 15468/74 Heading H3A A phase-sensitive detector comprises a pair of switching devices 2, 3 joined together at a point 1 and arranged to be controlled by reference signals in antiphase, an A.C. coupling between a signal input terminal 7 and the point 1, a feed-back amplifier 5 having an input connected to an output of one of the devices 2, 3, with the output of the other device connected to ground potential or to an input of a further amplifier 15, a circuit 21 for compensating any input offset voltage of the amplifier 5 being coupled between the point 1 and the A.C. coupling. The detector shown may provide at 6 a half wave rectified version of an input signal Vs at 7 if terminal 9 is earthed (as in Fig. 2, not shown) or a full wave rectified signal with a differential output at 6, 16. In further arrangements (Figs. 4-7, not shown), an inverted input signal Vs is applied via a further pair of switching devices to one or both of amplifiers 5, 15. The inverted input signal path may be associated with its own compensation circuit supplied from the common point of the second pair of switching devices (Figs. 4, 5). Alternatively the compensation circuits of each signal may be supplied from the common point of the other pair of switching devices (Figs. 6, 7).
Patent GB-1044893-A (GB)
Title: Improvements in or relating to means for clearing droppings from poultry cage batteries
IPC: A01K31/04
Filed: 1964-04-15
Abstract: 1,044,893. Cleaning battery cages. T. INCLES. April 9, 1965 [April 15, 1964], No. 15587/64. Heading A1M. A scraper unit for cleaning the droppings platforms 5 beneath battery cages comprises channel section side members 1 connected by cross members 2, 16 and supporting scraper blades 4 extending obliquely across platforms, each blade 4 being secured to a pivot rod 6 journalled in lugs 17, 18. A line-anchorage member 8 is secured to cross rod 7 which also supports a striker 9 below which is a sleeve 19 within which is a finger 10 extending from each pivot rod 6. The unit is moved by means of an endless line 11 one run of which is attached to member 8, initial movement of the line pivoting member 8 and lowering sleeve 19 which bears on the fingers 10 thereby bringing blades 4 into scraping contact with the platforms. In the reverse direction of travel the blades ride over, or are lifted clear of, the droppings. The droppings may fall on to a conveyer. Deflector plates 3 and guide plates 3a on the unit travel in fixed guide channels 3b on the battery.
Patent GB-218321-A (GB)
Title: Improvements in centrifugal separator baskets
IPC: B04B7/18
Filed: 1924-06-28
Abstract: 218,321. Roberts, E. June 30, 1923. [Convention date]. Strainer separators. - A centrifugal separator basket has an outer perforated wall 1 with interior shallow pockets communicating with the perforations 12 in the wall. A closely-perforated filter screen 23 rests in the usual way upon a wire mesh 22 and is supported by a bridge-plate 21 with closely-arranged relatively coarse perforations. The shallow pockets of the outer wall are formed by large perforations in a grid 20 and the inner ends of the discharge openings 12 are flared as indicated at 15. This arrangement prevents the screen from bulging at the discharge openings. The bottom 9 of the outer veseel is secured to the cylindrical part by an annular extension 10, the parts being pinned together and a tight band 11 applied. Annular ledges 13 project inside the bottom 9 and a coansely-perforated bridge-plate 30 is secured to the ledges and carries the filtering screens 31. Discharge openings are formed beneath the ledges and the filtering screens 31 overlap the screens 23. The screens may be made in vertical sections which overlap slightly. A circular deflector plate is secured to the shaft. The apparatus may be used for the refining of sugar.
Patent GB-498385-A (GB)
Title: Improvements relating to flexible metal sleeves, pipes, or the like
IPC: H02G15/14
Filed: 1937-06-04
Abstract: 498,385. Cables. ALLGEMEINE ELEKTRICITATS-GES. June 4, 1937, No. 15598. Convention date, June 5, 1936. [Class 36] [Also in Group XXVIII] A flexible tube, sleeve, &c. suitable for enclosing a Pupin coil &c. associated with a submarine cable, is made by winding helically a Z-shaped metal strip into tubular form, and then cutting helical grooves 3 in the wall of the tube 1 for the reception of armouring wires. An insertion 2, such as a flat wire, is located in the inner channel of the tube to support the latter during the groove-cutting operation, the grooves being cut to such a depth that they pass through the tube wall and into said insertion.
Patent GB-1164737-A (GB)
Title: Improvements in Fuel Flow Controls
IPC: F24C3/12
Filed: 1967-04-05
Abstract: 1,164,737. Valves. CONTROLS CO. OF AMERICA. 5 April, 1967 [22 July, 1966], No. 15628/67. Heading F2V. A single control knob 12 is arranged to first open a main fuel control valve 28 after which it is free to adjust the setting lever 56, 60 of a thermostatically actuated supplementary valve 68. During the initial movement of the knob an abutment thereon engages the upper end of a lever 30 pivoted to a member 16 which has a slot 24 in driving connection with valve 28. The lower end of this lever engages a cam 34 which pivots the lever out of engagement with the knob abutment when the valve reaches its fully open position. Further rotation of the knob then moves lever 56 through an eccentric cam 54 to adjust the tension in spring 64. A pair of further abutments (not shown) effect movement of valve 28 to the closed position during which period lever 31 is returned into engagement with the knob abutment by cam 34. The knob is free to move axially when in the " pilot " position so that arm 44 can operate a re-set device (not shown).
Patent GB-1068149-A (GB)
Title: Catalysts
Inventor: FOLL GEORGE EDWARD
IPC: C08G59/70
Filed: 1966-04-07
Abstract: Epoxides are polymerized in the presence of a combination of (1) a b -diketone chelate of zirconium and (2) an aluminium trialkyl or aluminium dialkyl halide such that there is provided at least 1 but less than 4 atoms of Al per atom of Zr. Polymerization may be effected in the presence of inert solvents e.g. n-heptane. Examples describe the preparation of polymers from propylene oxide and epichlorohydrin, where the chelate is zirconium acetyl- or benzoyl acetonate.ALSO:The catalysts of the Parent Specification which comprise a combination of (i) zirconium b -diketone acetonate and (ii) aluminium trialkyl or aluminium dialkyl halide preferably such that (i) and (ii) are present to provide 4 to 6 atoms of Al per atom of Zr are modified in that (i) and (ii) are in such proportion as to provide at least 1 but less than 4 atoms of Al per atom of Zr.
Patent GB-577804-A (GB)
Title: Improvements in and relating to the production and processing of photographic materials
IPC: G03C7/32
Filed: 1943-09-27
Abstract: 6-Benzoylacetamidoindazole is prepared by reacting together 6-aminoindazole and ethyl benzoylacetate. 5-Benzoylacetamidobenzimidazole, indazole - 5 - malonamide, 2 - mercapto - 5 - acetylacetamidobenzimidazole, 6 - (a  - hydroxy - b  - naphthoylamino) - indazole (using 6-aminoindazole and phenyl a -hydroxy-b -naphthoate), and 6 - (o - hydroxybenzoylamino) - indazole (using 6 - aminoindazole and phenyl salicylate) are similarly prepared.  5-(41-Benzoylacetamidobenzenesulphonamido) - 2-mercaptobenzimidazole is prepared by the reaction of 2-mercapto-5-aminobenzimidazole and 4 - benzoylacetaminobenzenesulphonyl chloride in the presence of anhydrous sodium acetate and glacial acetic acid. 2-Mercapto-6-(11-naphthol-51-sulphonamido) - benzthiazole (using 1-acetoxynaphthalene-5-sulphonyl chloride and hydrolysing the product with dilute alkali), 2-mercapto-5-(21-cyanacetylcoumaronyl-5-sulphonamido) -benzimidazole, and 6-(21-cyanacetylnaphthalene - 61 - sulphonamido) - indazole are similarly prepared.
Patent GB-260518-A (GB)
Title: Improvements in clips for facing-point lock-bars, clearance and train-protection bars, and the like
IPC: B61L11/04
Filed: 1926-06-24
Abstract: 260,518. Tyer & Co., Ltd., and Punter, J. W. June 24, 1926. Safety, fouling, and locking bars.-A clip for supporting the rocking-levers of safety bars is fitted with stops which make contact with and support the bar in its extreme positions. Fig. 4 shows a clip comprising a plate 1 having an offset lug 4 by which it is secured to the rail, and two arms carrying stops 6 which are mounted on pins 13 and rest on lugs 14. In a modification, the clip is built up of two parallel plates clamped by bolts with distance pieces between the plates. Two of the distance pieces serve as the stops on which the bar rests. The stops are of square or other form which permits resetting to present different faces to the bar.
Patent GB-168444-A (GB)
Title: Improvements in looms for weaving coir mats and the like
IPC: D03D41/00
Filed: 1920-06-14
Abstract: 168,444. Green, A. W., Green, J. R., and French, P. June 14,1920. Reeds; beat-up motions.-In a vertical shuttleless pile-fabric loom for weaving coir mats, face to face, hooks 4 operating in the .coir yarns, engage, when in the highest position, with sockets 60 in the reed dents. It is stated that any or all of the parts may be operated either pneumatically, hydraulically, or mechanically, or by a combination of these methods, and particular reference is made to the operation of the batten pneumatically or hydraulically.
Patent GB-953058-A (GB)
Title: Semiconductor device and method of making same
IPC: H01L23/522
Filed: 1960-05-06
Abstract: 953,058. Semi-conductor devices. TEXAS INSTRUMENTS Inc. May 6, 1960 [May 6, 1959], No. 16072/60. Headings H1K and H1R. A passive circuit element is mounted on an insulating layer on the surface of a semiconductor body to which a PN junction extends. One embodiment consists of a compact arrangement (Fig. 1) of the circuit shown schematically in Fig. 2 made by printed circuit and allied techniques. Acceptor and donor impurities are successively diffused into the entire surface of an N-type semi-conductor wafer to form overlying P and N zones after which the surface is etched to remove the zones except from the area 14 in Fig. 1. The resulting wafer is entirely coated with insulation 20 and the upper surface overcoated with a photo-resist and exposed to light except for masked regions at the desired locations of electrodes 11, 12 and 13. The unexposed regions of the photo-resist are washed off and the wafer etched through the insulating layer at the regions thus exposed to form pits of the desired depth. Antimony doped gold is then evaporated through a mask to form emitter and collector contacts 11, 12, and aluminium to form base contact 13. After heating to alloy these contacts to the body thick highly conductive films of copper or gold are applied to areas 2, 3, 5, 15, 23, 8 and 17 by vacuum deposition through a mask, and thin films of the resistive alloy " Nichrome " (Registered Trade Mark) similarly applied to areas 9,16, 24 to form resistors R 2 ,R 1 ,R 3 . The entire surface is next covered with a film of silicon dioxide which forms the dielectric of capacitor C and serves as a protective coating for the other circuit elements. A highly conductive film is finally deposited on areas 4, 6 to form the upper plate of the capacitor. Specification 945,734 is referred to.
Patent GB-151110-A (GB)
Title: Improvements relating to sparking plugs
IPC: H01T13/16
Filed: 1919-12-29
Abstract: 151,110. Geddes, W. J. Dec. 29, 1919. Sparking-plugs. - Consists in making these with an annular space 4 extending along the whole length of the casing 1 between it and the central electrode 2 and its insulator 3, through which space a, cooling-fluid may circulate. As shown in Fig. 2, inlets and outlets 16 are screwed to the casing 1 for connexion to a source of supply of cooling-fluid. The central electrode has an enlarged sparking-terminal 9 bearing against a flange 7 on the insulator, which flange is tightened against a collar 8 within the casing by means of nuts 13 screwed to the outer end of the central conductor over a washer 15, an insulating-bush 12, and an insulating-cap 11. The sparking-terminal 9 is cam-shaped, as shown in Fig. 5, and fits in an eccentric recess 10 in the end of the casing, so that the length of the sparkgap may be adjusted by turning the central conductor about its axis. In a modification, instead of connexions 16 for the cooling-medium, the casing and the insulator 3 are perforated with many holes which allow free circulation of air.
Patent GB-335593-A (GB)
IPC: G07D9/06
Filed: 1929-05-24
Abstract: 335,593. Chiger, S. Nov. 7, 1928, [Convention date]. Counters for checks, coins, &c.-In an apparatus for sorting, counting, and packing coins, the tubular containers into which the coins are fed are manufactured from a strip of paper, wired on both edges, before or simultaneously with the counting and sorting operations, all the operations taking place in the same machine. The filled containers are automatically closed and the distance, of the container conveyer from the closure devices may be regulated, while a device for simultaneously advancing an empty container and uncovering the zeroizing mechanism is also provided. The by a pusher 5 to a test hole 8 and a coins are conveyed from the stack 1 discharge hole 7 which are situated in a detachable slide 6 by changing which the machine may be used for different kinds of coins. A magnet 9a is provided at the hole 8. In passing to a shoot 12 from which they enter a container, the coins actuate the wheel 18 and a pinion 17 which are mounted on the same shaft 78; counting wheels 14 and 15 are thus rotated and one of two fingers 25 and 26, the positions of which determine the number of coins to be counted, rotates a pinion 16. The finger 25 may be brought into or out of engagement as required by levers 27, 28. To ensure that no irregular operation of the counting mechanism may take place, the slots 76 and 77 through which the counting mechanism is zeroized are covered by a cap 73, which may only be removed by means of the pivoted lever 69. The lever 69 is operated by means of the recess 67 in the lever 63, which is adapted to rotate the plate 34 to bring a fresh container beneath the filling shoot.
Patent GB-971023-A (GB)
Title: Improvements in clamps for semiconductor or other heatdissipating devices
Inventor: WEAVER JOHN JAMES LAWRENCE
IPC: H01L23/40
Filed: 1961-05-04
Abstract: 971,023. Clamps. ENGLISH ELECTRIC CO. Ltd. April 26, 1962 [May 4, 1961], No. 16270/61. Heading E2B. A clamp for securing to a heat sink or other member 12, a heat dissipating device having a body part 11 which extends above a flanged part I 1a, comprises two lengths of strip material 13 adapted to be disposed on opposite sides of the body part, each having an edge adapted to bear against the flanged part to press the device into contact with the member 12, with the opposite faces of the strip material extending substantially perpendicular to the surface of the member engaged by the device, the lengths of strip material extending in opposite directions beyond the device and being adapted to be secured to the member. As shown, the strips form part of an endless band secured by screws 14, the lower edge of the band lying in two planes inclined at a small angle to the base 11a. In a modification, Figs. 3-5 (not shown) the band is distorted to make the length of the minor axis at the top edge of the band greater than the lengths of the minor axis at the bottom of the band.
Patent GB-657995-A (GB)
Title: Improvements in or relating to combined end doors and loading ramps for vehicles
IPC: B61D47/00
Filed: 1949-06-20
Abstract: 657,995. Loading-ramps on vehicles; balancing devices. GIBSON, G. T., and RAMSEY, W. W. June 20, 1949, No. 16288. [Classes 78 (ii) and 78 (iv)] A combined end door and ramp for a vehicle having upper and lower decks comprises an upright main frame for attachment to the rear end of the vehicle body, said main frame incorporating vertical guides disposed one at each side of and within the main frame, inner and outer ramp sections hinged together and having the inner section pivotally attached to means movable in said vertical guides, and counter-balancing means at each side of the main frame and interconnected with the inner section of the ramp, the counter-balancing means at one side of the frame being a duplicate of that at the other side. The two-deck animal-carrying vehicle shown has a ramp (Fig. 2) formed in two parts 17, 20 joined by a rule joint and serving as an end door for the vehicle. The inner part 17 of the ramp carries rollers 14, engaging guides 13 at the sides of the vehicle so that the ramp may serve either of the decks, and adapted to be locked at the upper or lower ends of the guides. Counterbalancing spring devices 26 are connected between brackets 23 on the sides of the vehicle and levers 33 pivoted to brackets 24. Each lever 33 bears by means of a forked end or roller 38 on a lever 35 pivoted at the sides of the vehicle and provided with a slot 36 engaging a pin 37 at the side of the inner part 17 of the ramp. The spring devices 26 may engage any of several holes 34 in the lever 33. When the parts 17, 20 of the ramp have been raised one after the other to close the end of the vehicle they may be locked by bolts at the sides of the vehicle which engage members on the outer part 20 of the ramp. The ramp and its guides 13 are formed as a unit for attachment to any vehicle. The unit has a frame (Fig. 8) which includes verticals 10 comprising timbers 10a carrying the guides 13, rear plates 10b and side plates 10c adapted to be secured over the cleading of the vehicle, the verticals being joined at their lower ends by a transverse member comprising angle irons 11a joined by a shaped back plate 11b.
Patent GB-380056-A (GB)
Title: Improvements in settees, and the like, convertible into beds
IPC: A47C17/20
Filed: 1931-06-04
Abstract: 380,056. Bed settees. STEPHANY, M., 8, Coronet Street, and BEILIN, L., 64, Menelik Road, Hampstead, both in London. June 4, 1931, No. 16294. [Class 52 (ii).] A bed settee has the seat component 1 attached to the bed frame by links 7, 8 and to sliding members 2 by bridge members 3 but free of the fixed settee frame. The bed frame comprises a foot section 4, coupling members 9, an intermediate section 5 and a head section 6, and the latter section with its end sliding in guides 16 is connected to the sliding rods 2 by pivoted links 15. The members 2 extend through slots 14 in the brackets 13a and have rollers 20 working on the runways 13. The intermediate section 5 is pivoted to links 10 which have slots 12, which work on pin 11 attached to the bracket runways 13. In the folding to the settee position the members 2 have a reciprocating motion, the head section 6 moves to a position parallel with the back and the seat is finally supported by seat rests 17.