baber/WOPTO huggingface dataset:
Patent GB-562443-A (GB)
Title: Improvements in jolt and draw foundry moulding machines
IPC: B22C15/10
Filed: 1943-03-15
Abstract: 562,443. Machinery guards. HOPKINSONS, Ltd., and BROWN, R. L. March 15, 1943, No. 4203. [Class 80 (iv)] [Also in Group XXII] In a jolt and draw foundry moulding-machine, the air exhausted from the draw cylinder g is passed into the space within the bellows n and frame j used for lifting the mould from the pattern table a, thus preventing dust-laden air from being drawn in during the fall of said frame j. The exhaust passage of the usual distributing valve by which air is supplied at will to the automatic jolt valve or the draw cylinder g, is connected by a flexible pipe s<1> to a pipe s whereby exhaust air enters the guiding cylinder p. Excess air escapes through ports o, q. The annular draw plunger e is connected, by brackets h and rods i, shown in broken lines, to the bottom of the frame j.
Patent GB-101583-A (GB)
Title: Improvements in Kilns.
Inventor: MCARTHUR LACHLAN WALLACE
IPC: F27B13/02
Filed: 1916-03-22
Abstract: 101,583. McArthur, L. W., and McKergow, P. S. March 22, 1916. Brick kilns.-In an opentopped kiln, draught-producing chimneys are provided, forming vertical extensions of the side walls and communicating with the kiln chamber by openings near its top. In the construction shown, the foundation of the kiln is excavated to form two series of parallel furnace chambers b separated from one another by unexcavated portions c. The excavations are made deeper at their outer ends to accommodate the fire-place, and are lined with refractory material. The inner ends of the excavations are inclined as shown at g. Side and end walls are built up on the foundation, and the former are constructed with chimneys 2 extending downwards to within a short distance of the floor and communicating at their lower ends with narrow chambers 3 opening into the kiln chamber through horizontal passages 4. The furnace chambers are roofed over by slabs p supported on the lining, and the spaces between the slabs are covered in turn by slabs r with corner feet s. This arrangement causes the gases to take a tortuous path before reaching the goods in the kiln. The slabs r are so dimensioned that the bricks can be stacked without obstructing the passages between them. The top courses of the bricks in the kiln are set tight, and the heating is controlled entirely by manipulation of the chimney dampers, and regulation of the furnaces. The kiln may be fired either by solid fuel burnt on grates t, or by liquid or gaseous fuel supplied through pipes u, v. A long kiln chamber may be divided by a hollow wall 10, through which a portion of the gases is exhausted under control of dampers 31 and led to a drier.
Patent GB-228360-A (GB)
Title: Improvements in the construction of beams or joists for building or like purposes
IPC: E04C3/20
Filed: 1924-02-19
Abstract: 228,360. Loyeau, P. B. Feb. 19. 1924. Reinforced - concrete girders a n d beams ; floors of reinforced - concrete girders side by side. -Reinforced - concrete beams s are made with the lower flange substantially wider than the upper flange, a reinforcement comprising longitudinal bars 5, 6, 9 tied together at intervals, and openings 4 of substantial size in the web to reduce weight and allow for the passage of pipes &c. Floors may consist of a number of such beams laid close together, and the ends 8 of the main bars may project for anchoring the beams.
Patent GB-1424392-A (GB)
Title: Pulsed doppler radar
IPC: G01S13/64
Filed: 1973-01-29
Abstract: 1424392 Pulse radar SIEMENS AG 29 Jan 1973 [28 Jan 1972] 4358/73 Heading H4D A pulsed Doppler radar has n range channels each connected to the radar receiver for a time t 1  during a first mode of operation and each having a Doppler filter for suppression of stationary target echoes and means for switching to a second mode of operation in which the range channels are connected for a longer period t 2 , the transmitter pulse length is increased and each range channel is modified to include a plurality of narrow band-pass filters whose adjacent pass-bands together cover the overall Doppler pass-band. Echoes from rotating or phased array antenna 1 are coherently detected and passed to A-D converter 7. Switch SE connects the converter output to range channels K1-Kn each for a period t 1 , approximately the length of the transmitter pulse. Each channel contain a digital filter D1 initially passing the whole Doppler frequency band, followed by a threshold detector W1-Wn. After further detection integration and threshold detection the range channels are sequentially interrogated by switch SA and the data fed to indicator 9. Thresholds W1-Wn have two thresholds, one just above noise level and a higher value. Signals between these amplitudes cause control 10 to switch to the second mode of operation. Here sync. generator 3 causes the transmitter pulses to be lengthened g times (in this case g = 2) simultaneously a second digital filter HD1 is connected into the range channel and the band-passes of D1 and HD1 are arranged to split the Doppler passband equally. The filter outputs are compared and if one is greater this indicates a target, if they are substantially equal no target is present. In an alternative arrangement (Fig. 2, not shown) instead of the further filter HD1, the adjacent range channel is used, switch SE being used to connect the two channels simultaneously for the longer period. Usually the longer connection time will equal the longer transmitter pulse length. However when the transmitter signal comprises a group of pulses which undergo pulse compression before the Doppler filtering the burst length is maintained the same but the number of pulses is reduced, thus producing lengthened sub-pulses. Preferably the A-D converter 7 retains the same sampling frequency during both modes and when the second mode is operating the echo signals are stored and repeated g times.
Patent GB-1011586-A (GB)
Title: Improvements in and relating to electrical contactors
IPC: H01H1/06
Filed: 1963-02-04
Abstract: 1,011,586. Two-part couplings. COMPAGNIE ELECTRO-MECANIQUE. Feb. 4, 1963 [March 15, 1962], No.4419/63. Heading H2E. An electromagnetic contactor, which is mounted on an insulating support readily removable from a base, has at least one contact 13 for co-operation with a contact carried by the base, the contact 13 being subdivided by parallel slits into three distinct strips 13b, 13c, 13d and the central strip 13c being bent as shown. The contact 13 is U-shaped and is attached to the contactor support by means of ribs on the latter and a spring catch engaging the contact. The base contact is mounted resiliently either by a helical spring, Fig. 1 (not shown), or a leaf spring, Fig. 3, held in position by a spring detent, or a blade held by a screw passing through the body into an oval shaped hole in the blade, Fig. 5 (not shown). Specification 951,326 is referred to.
Patent GB-1414572-A (GB)
Title: Rabodzei n v x-ray diffraction topography of monocrystals
IPC: G01N23/207
Filed: 1973-01-29
Abstract: 1414572 Local viewing; X-ray diffraction apparatus V P EFANOV N I KOMYAK V G LJUTTSAU and N V RABODZEI 29 Jan 1973 [28 Jan 1972 (2)] 4420/73 Headings H4F and H5R The X-ray topogram of a monocrystal 3, e.g. of silicon, is obtained by directing thereon a beam of X-rays 19 and selectively transmitting the Bragg diffracted beam 20 via a multichannel collimator 4, e.g. a matrix of capillary tubes 7, to a detecting and recording arrangement 5, 6. As shown, a cathode-ray tube (CRT)1 with a target anode 9 coated on a beryllium window 10 co-operates with an optional multi-channel collimator 2 to provide a scanning collimated beam 19 incident on crystal 3 at the Bragg angle #, and the beam 20 is detected on a CRT 5 controlling a display CRT 6. If collimator 2 is omitted, crystal 3 acts as its own collimator, but the contrast of the display is reduced. The electron beam of tube 1 and the channels of collimator 7 are each 20 Á in diameter. The tubes 5 and 6 may be replaced by a photographic film, and tube 1 may be replaced by a broad beam X-ray source. Initially the apparatus is set up with collimator 2 absent, by rotating crystal 3 or collimator 7 until an image appears at 6, whereupon collimator 2 may be added for increased contrast. The aligned collimator assembly 2, 7 may then be retained for examining a series of crystals 3 of the same type, and be replaced by a different assembly when the type of crystal 3 is altered. It is said that the arrangement allows changes in the crystal structure, e.g. flow growth, manufacture of P-N junctions, to be followed with the crystal in situ and subjected for example to external mechanical and thermal constraints. The distance between the X-ray source and detector may be 2-10 mm.
Patent GB-426518-A (GB)
Title: A new or improved method of and means for ventilating and extracting fumes from garages and like enclosures
IPC: B08B15/00
Filed: 1934-02-10
Abstract: 426,518. Ventilating garages. HALL & KAY, Ltd., HALL, S., and KAY, P., Stockport Road, Ashton-under-Lyne. Feb. 10, 1934, No. 4438. [Class 137] Fumes are extracted from garages by leading the exhaust gases from the engines of the vehicles directly into extraction ducts in which suction is created by a fan which discharges the fumes to the outside atmosphere. A main extraction duct which includes a fan is connected by branch ducts 7 under the floor 5 with extraction boxes 11 having grids 12 communicating with the inside atmosphere and receiving flexible hoses 13 which may be pushed on to the exhaust pipes 15 of the engines. Flanges 14 are formed on the ends of the hoses to prevent their inner ends from being withdrawn from the boxes. The hoses when not in use are coiled inside the extraction boxes.
Patent GB-208053-A (GB)
Title: Improvements in receptacles for betting slips
IPC: G07C13/02
Filed: 1923-02-15
Abstract: 208,053. Payne, G. C., and Parish, T. J. Feb. 15, 1923. Collecting-boxes.-Relates to a receptacle, resembling in appearance an attache case, for receiving betting slips. The case is partitioned into compartments which are surmounted by a metal plate 7, Fig. 4, which rests on shoulders formed in the wooden end-pieces 4, 5. This plate has a series of openings 9, Fig. 2, and above them a corresponding number of panels 10 of frosted glass &c. upon which a desired code-word can be written. Above the plate 7 is placed a second plate 12, Fig. 1, having openings 17 and clear glass panels 18 adapted to overlie the parts 9, 10 of the lower plate, and also frosted glass or other panels 19 on which is written the time of a race. Plate 12 has at one edge pins 14 adapted to take into slots in the end-piece 5, and at the other edge a hasp adapted to be engaged by the bolt of a lock 16 mounted on end-piece 4. On its underside plate 12 has a series of undercut wooden edgings 13 between which shutters 20 having operating knobs 21 projecting to the front of the plate are adapted to slide, mounted on the shutters being spring-controlled pawls adapted to engage notches in the edgings and permitting movement of the shutters in a downward direction only. Manipulation of the operating knobs of the shutters from the left-hand position of Fig. 1 (in which the slots 9, 17 are co-incident and slips may be placed in the .compartment) produces firstly closing of the slots and secondly disclosure of the code word.
Patent GB-954229-A (GB)
Title: Iris diaphragms
IPC: G03B9/08
Filed: 1961-02-07
Abstract: 954,229. Iris diaphragms. M. C. SCHNEIDER. Feb. 7, 1961 [April 13, 1960], No. 4509/61. Heading G2J. An iris diaphragm comprises arcuate blades 1 each pivoted at a point 3 remote from the blade ends on pivoted links 2 and arranged so that as the aperture of the diaphragm varies its circumference remains free of salient portions between the blades and the links serve to prevent light passing through gaps between the blades. The diaphragm may be of the presetting type. Specification 794, 596 is referred to.
Patent GB-272977-A (GB)
Title: Improvements in electrical time switches
IPC: H01H29/22
Filed: 1926-02-17
Abstract: 272,977. Bernd, A. von. Feb. 17, 1926. Mercury and other conducting liquid switches have two chambers x, y connected by a large passage and by a throttled passage 2 so as to give a quick make and slow break when tilted, the throttled passage having conducting liquid in and on both sides of it in all positions of the switch. Fig. 1 shows a form having contacts 1, 2 in insulating tubes 9, 8. Tilting of the apparatus through 90‹ allows liquid to flow rapidly from y to x through the space 12 and to connect the contacts 1, 2. When the apparatus is tilted back the liquid flows slowly from the tube 8 through the passage 2 till it falls below the level of the tube 9 when connection between the contacts 1 and 2 is broken. Fig. 6 shows a form in which the throttle 2 has chambers 31. 32 on each side of it, and Fig. 18 shows a switch with nuts 122, 126 for adjusting the extreme positions of the switch.
Patent GB-1011455-A (GB)
Title: Improvements in or relating to storage tubes
IPC: H04N3/26
Filed: 1964-02-04
Abstract: 1,011,455. Television; cathode-ray tube circuits. M. GRUNDIG. Feb. 4, 1964 [Feb. 26, 1963], No. 4661/64. Headings H4F and H4T. A method of producing a storage pattern image on a storage screen in a direct vision storage tube by means of a writing electron beam which is controlled by image signals and scans the screen, comprises inhibiting the electron beam from writing for a part of the time it takes in scanning each elemental area (picture point) of the screen in order to obtain more effective distinctiveness between intermediate tone gradations in the pattern written on the screen. This method relies on the fact that the shorter the time t for the flow of the current I per elemental area, the greater can I become in order to bring the same amount of charge on to each elemental area of the storage screen. As shown, Fig. 1, a video television signal from point 3 is supplied to the control grid 2 of the direct vision storage tube 1 through video amplifier 4 and thus the electron beam emitted by cathode 7 is modulated with the video signal. The control grid 2 is also coupled to an electronic switch 5 to the input 6 of which keying pulses a (Fig. 2) are applied which each consist of a long pulse interval c and a short pulse interval b. During pulse interval c the electronic switch is open and its output blocks the control grid 2 so that no electron beam flows. During pulse interval b the electronic switch is blocked and only the video signal appears at the control grid 2 and thus the electron beam can pass through the control grid 2 to an extent corresponding to the amplitude of the video signal and produce a pulse train such as d, Fig. 2, which is produced when the electron beam is interrupted six times per elemental area. Generally the beam is interrupted only twice.
Patent GB-495637-A (GB)
Title: Method and apparatus for separating a liquid from solid matters suspended therein
IPC: B03B5/32
Filed: 1937-02-16
Abstract: 495,637. Gravity-separation apparatus. AN. TESCH AKTIEBOLAG, T. Feb. 16, 1937, No. 4669, Convention date, Feb. 17, 1936. [Class 46] Liquid containing solid matter is supplied to chambers 3, formed between conical members 2, by pipes 1, the ends of which are turned horizontally so that the liquid has a rotary movement in the chamber. Clear liquid rises and overflows into peripheral channels 8 for discharge through pipes 9. Solid matter settling falls down the inclined members and is discharged through pipes 5. There may be apertures 2 at the apices of the conical members. In a modified form of apparatus, the chambers are closed at the periphery and each is provided at the upper end with a pipe for the discharge of clear liquid and a pipe for the discharge of matter lighter than the liquid.
Patent GB-966397-A (GB)
Title: Pneumatic tool
IPC: B08B7/02
Filed: 1962-02-07
Abstract: 966,397. Percussive drills. REED ROLLER BIT CO. Feb. 7, 1962 [Feb. 20, 1961], No. 4716/62. Heading B4C. [Also in Division F2] A pneumatic tool comprises at least one piston 6 mounted in a cylinder 3, one end of the cylinder being closed and sealed by a resilient cylinder head 8. As shown in Fig. 1 applied to a percussion scaling tool having a number of pistons 6, the resilient cylinder heads 8, which may be of synthetic rubber, are held in position by a pin 11 having a larger diameter than holes 9 in the heads. In operation, compressed air is fed via a valve 14, through a hollow handle 12, port 17 and passages 21, to act on top of the pistons. Upon movement of the pistons, the passages 21 are closed and exhaust outlets 22 opened thereby permitting the return of the pistons. The resilient heads 8 act as buffers and are also easily removed for replacement of the pistons. The handle may be screwed into an alternative socket 15.
Patent GB-756589-A (GB)
Title: Protective insole or sock
IPC: A43B17/04
Filed: 1954-02-18
Abstract: 756,589. Boots &c. NORDAHL, E. J. Feb. 18, 1954 [March 4, 1953], No. 4846/54. Class 17 (2). A protective insole resistant to nails and the like penetrating the sole comprises a thin, resilient, flexible and imperforate metal plate 1, preferably of spring steel, which is flat except for a recess 2 at the heel end and is covered, at least on one side, with a layer of non-metallic material 3, such as rubber, plastic or fabric. The plate may be embedded in the material or may be inserted through an opening along the side. A protective toe cover 4 may be provided having flanges 4a between which the plate fits.
Patent GB-131017-A (GB)
Title: Improvements in and relating to the Production of Ammonium Nitrate.
Inventor: BAILEY CLEMENT WILLIAM
IPC: C01C1/18
Filed: 1918-03-20
Abstract: 131,017. Bailey, C. W., Denny, H. S., and Jefferis, A. T. March 20, 1918. Ammonium nitrate; sodium sulphate.-Suitable proportions of ammonium sulphate and sodium nitrate interact in the presence of a bisulphate, for example sodium bisulphate. Sodium sulphate separates from the hot solution and is removed. When the solution has cooled, without dilution, ammonium nitrate separates. Ammonium sulphate and sodium nitrate, in proper quantities, are added to the final solution, and the process is made continuous. Nitre-cake mav be used as the source of the sodium bisulphate employed.
Patent GB-371089-A (GB)
Title: Improvements in apparatus for use in the development of photographic negatives
IPC: G03D3/10
Filed: 1931-02-16
Abstract: 371,089. Step - by - step conveyers. BARKER, W. G., Birch Cottage, Diax Avenue, Wimbledon, London. Feb. 16, 1931, No. 4883. [Class 78 (i).] A conveying apparatus adapted to advance groups of photographic plates &c. through a sequence of developing, fixing &c. baths, comprises a pair of lifter bars c suspended by pins d<11> from pairs of endless chains d passing around upper chain wheels d<1>, d2 supported from a framing f and around lower wheels d3, d<4> the shafts of which are adjustable in slots f<2> in members f<1> adjustable vertically by cams f<5>. A series of laths a<1> .. a<9> are adapted to receive the groups of plates &c. which are suspended by rods b from frames b<2> located upon the bars c by pins b<3>. The chains d are driven from a motor e through chains e<2>, e<7>. The bars c are braced by cross members c<3>. In operation, the frames b<2> are successively placed in position on the bars c which are then raised, moved forward and lowered ; in the lower part of the movement, the frames rest upon funnels a<10> or other supports and are detached from the bars c which continue downwards, then move backwards and rise to engage the following groups of the series. The time of immersion in the baths mav be controlled bv an electric time switch for the motor actuated by the movement of the conveyer.
Patent GB-1145729-A (GB)
Title: Improvements in severing devices for the threads of lock stitch sewing machines
IPC: D05B65/00
Filed: 1968-01-31
Abstract: 1,145,729. Sewing machines. UNION SPECIAL MASCHINENFABRIK G.m.b.H. 31 Jan., 1968 [4 Feb., 1967], No. 4920/68. Addition to 1142729. Heading D1G. The fixed severing blade of the parent Specification 1,142,729 is replaced by an electrically heatable wire 11 to sever the drawn out threads. The wire is intermittently heated by discharge from a condenser triggered by movement of the thread catcher 1.
Patent GB-266719-A (GB)
IPC: B01D29/00
Filed: 1927-02-22
Abstract: 266,719. Vernay, J. B. Feb. 24, 1926. [Convention date]. Filters having sheet filtering materials. - A filter for the preliminary removal of liquid from a mixture of liquid and solid material prior to complete separation in a drum or other filter, is composed of hollow elements, each of which is connected at the bottom to suction means and is provided at the top with an inlet for compressed air for detaching deposit from the elements. A suitable filter element comprises a perforated cylinder 1, Fig. 1, over which a filter cloth 2 is bound by a wire coil 3, and which is mounted on a tube 7 connected at the lower end 9 to a suction pump and at the upper end 8 to a source of compressed air. Four rows each comprising four of these elements are mounted in a casing 13, Fig. 3, to which material is supplied through an inlet 25. The elements are connected by branches 14, 15 to a main suction pipe 19 and a compressed air pipe 18. The thickened material is stirred and delivered to an outlet 24 by a helical blade 22. The Specification as open to inspection under Sect. 91 (3) (a) describes also a filter element, Fig. 2 (Cancelled), with a tube 4 passing upwardly from the element and serving both for the discharge of filtrate under suction and the supply of compressed air, and also a further modification with two upwardly-extending tubes. This subject-matter does not appear in the Specification as accepted.
Patent GB-783199-A (GB)
Title: Improvements relating to means for ventilating vehicles
IPC: B60H1/26
Filed: 1955-02-21
Abstract: 783,199. Sliding windows. WINDSHIELDS OF WORCESTER, Ltd., and JONES. A. V. Feb. 9, 1956 [Feb. 21, 1955],. No. 5044/55 Classes 20(3) and 137 A vehicle window assembly of the kind comprising a pair of sliding glazed ventilation panels A, B movable away from,. and toward, one another on horizontal guides, not shown, each of the vertical H- sectioned frame members at the opposed ends of the two panels, having ventilation openings 12, 13 respectively in their outer and inner walls and carrying a fixed outwardly-projecting air deflector vane 4 for extracting air from the vehicle when the panels A, B are closed, is characterized in that the outlet openings in each frame member 1 are concealed by the root portion 14 of the respective vane 4 which is spaced from the frame member 1 to form a restricted air outlet passage 15 The outer channel member of each frame member 1 is closed by a grooved bar 7 to form .a ventilation duct 11, the series of outlet openings 12 from which are in staggered relation to the series of inlet openings 13. Each bar 7 is provided with a vane 16 so as to overlie and conceal the respective openings 13 and form, with the frame member, a narrow air inlet channel 17. The grooved bar 7 of one frame member has a vertical dovetail groove on its outer face to receive a rubber buffer strip 9 for co-operating with a recess 10 in the opposed grooved bar 7 of the other frame member. Specification 633,321 is referred to.