baber/WOPTO huggingface dataset:
Patent GB-384971-A (GB)
Title: Tactical tracer of ships' courses
IPC: G01C21/14
Filed: 1931-03-06
Abstract: 384,971. Course-recording apparatus. SOC. ANON. OFFICINE GALILEO, 24, Via Carlo Bini, Florence, Italy. March 6, 1931, No. 7025. Convention date, March 18, 1930. Void [Published under Sect. 91 of the Acts]. [Class 97 (ii).] Course-recording apparatus comprises means for decomposing a ship's motion into cartesian coordinates and moving a tracer over a chart accordingly and also means for tracing the path of one or more observed ships by utilizing the polar co-ordinates of the observed motions. In the form shown, the ship's log is adapted to drive two friction discs i, k, which drive small wheels l, m respectively. The distances of the small wheels from the centres of the friction discs are determined by two frames o, n moved by a stud p which rotates about the axis in accordance with the sum of the compass indication of the ship's course and the angle of the path along which the chart has been arranged to move. The rotation of the wheels l, m is thus proportional to the components of the ship's speed resolved in two directions at rightangles. The wheel m drives through gearing a roller for winding the chart whilst the wheel l is geared to means for causing a cursor d carrying a point b to move in a direction transverse to the movement of the chart. The course of an observed ship is indicated by the point c on the alidade a pivoted to the cursor d. The angular movement of the alidade a is controlled through gearing e, f by a sighting telescope, whilst the point c is moved along the bar a by gearing g in accordance with the telemetrical indications. For indicating the courses of two or more observed ships, two or more radial bars may be provided or a single bar may be used to give indications of the courses in sequence. To prevent the courses traced from swerving off the chart the latter may be rotated in its plane thus displacing through gearing h the axes to which the ship's motion is referred. The chart may be arranged so that the cursor d moves only to a slight extent. Indications of the N.S. direction and the time may be periodically marked on the chart.
Patent GB-1423424-A (GB)
Title: Picture scanning and recording system
IPC: H04N1/393
Filed: 1973-02-13
Abstract: 1423424 Facsimile DAINIPPON SCREEN SEIZO KK 13 Feb 1973 7105/73 Heading H4F In a facsimile system in which the duplicate at 1, Fig. 1, can be made smaller or larger than the original at 2, the magnification or dimutation is affected by a corresponding ratio in the speeds of rotation of the respective drums and possibly in their diameters. In order that the duplicate should not exhibit distorsion due to successive lines not being in synchronism, each line of the original video signal is stored and then read out to the duplicating means when said means commences its meet line. Thus, in the case of a reduction in size, and same diameter drums, the original drum 2 rotates faster than the duplicate drum and exhibits the short line periods C1b, C2b, C3b, Fig. 2 as against the longer line periods C1, C2, at the duplicate drum. The line outputs (b) of the original scanner 10 are successively stored and readout at the next duplicate time period, to be fed to the duplicate recording head as signal (C). It is thus possible that some original lines-e.g. C4b may not be duplicated. To ensure that the drums rotate at their correct speeds a sampling pulse and line sync. pulse generator 15, 16 is coupled to the drive shafts of the drums, each generator comprising Fig. 3, a light source 102 transmitting a beam through two rotating drums 100, 101, the former scribed with lines giving the sampling pulses in photodetector 110 and the latter scribed with a single line giving the line sync. pulse in photodetector 111. Drum 1 is driven at constant speed by synchronous motor 3 such that constant frequency sampling pulses 21a are fed to magnification conversion unit 23, Fig. 4. These are frequency multiplied at 24 by the desired size ratio, using voltage setter control 25, to give constant higher frequency pulses 26. The sampling pulses 22a from the original generator 16 are compared for phase and frequency at 27 with pulses 26 and any error is used to correct the pulsed motor 4 driving the original drum. (For Figures see next page.)
Patent GB-1222394-A (GB)
Title: Improvements in and relating to filtering
Inventor: GUILLERD JEAN
IPC: B01D35/12
Filed: 1968-02-13
Abstract: 1,222,394. Upward flow filtering beds. COMPAGNIE DES EAUX ET DE L'OZONE. 13 Feb., 1968 [16 Feb., 1967], No. 7122/68. Heading BID. Water is filtered by upward flow through a bed comprising layers of gravel and sand of upwardly decreasing particle size (exemplified), and the bed is periodically backwashed by a body of filtered water maintained above the bed and of approximately equal volume thereto. During filtration, the pressure drop across the bed is kept constant, and the volumetric flow rate declines as the bed clogs. To maintain a constant overall flow rate, several beds in different stages of clogging may operate in parallel. The prior art refers to upward flow filtration wherein the pressure is increased to maintain constant flow rate until the retained solids are suddenly released from the bed into the filtrate stream.
Patent GB-767557-A (GB)
Title: Method and apparatus for the continuous drainage of liquid from wet pulverulent material
Inventor: BLANKEVOORT DIRK
IPC: B22C5/08
Filed: 1955-03-11
Abstract: 767,557. Filters. BLANKEVOORT & ZOON, N.V., D. March 11, 1955, No. 7207/55. Class 46. Wet sand or the like 2 is fed from a hopper 1 by a shovel wheel 4, rotated e.g. by the weight of falling material, onto an endless conveyer belt 8 the conveying portion 5 of which is constrained to assume a channel section by rollers (not shown) and has water extracted from it by a filter member 10 comprising cotton wool, silicate cotton or the like confined between two coaxial gauze-covered perforated tubes 10 extending over the length of the portion 5. The extraction is effected by a suction pump 16 connected to a container 14 having also a suction pump 18 for accumulated water. The level of water and degree of vacuum are controlled by a device 19 controlling a contact for operating the pump 18.
Patent GB-107997-A (GB)
Title: Improvements in or relating to Artificial Feet.
Inventor: THOMAS HENRY HARRIS
IPC: A61F2/66
Filed: 1916-05-20
Abstract: 107,997. Thomas, H. H., and Bollans, R. W. May 20, 1916. Limbs, artificial.-A resilient buffer c between the toe-piece a and the remainder of the foot is of approximately semicircular section to form a hinge in combination with leather strips d, e. A similarly shaped buffer i is placed in front of the ankle, and at the back the buffer takes the form of an inclined rod n engaging recesses m, m<1>. The hingepin k bears against the foot by a strip r<1> of leather and is held in position by an eye s, the threaded stems s<1>, s<2> of which carry nuts bearing through a plate u upon the foot.
Patent GB-253222-A (GB)
Title: Improvements relating to casting concrete walls
IPC: E04G11/20
Filed: 1925-03-18
Abstract: 253,222. Stent, D. H. March 18, 1925. Moulding walls in situ.-Shutters G are supported between uprights A disposed on each side of the wall to be cast, the uprights being spaced apart by a sliding braced spacing B which can be clamped by clamps H to the uprights and is adapted to support the cores N on a winding shaft M and also a scaffold bracket P by a pulley R. The uprights on one side may be positioned by stays D and horizontals E, or the uprights on both sides may be supported by an horizontal. The pairs of uprights are also aligned longitudinally by extending the braced spacing member in a longitudinal direction. The shutters are of steel plate with stiffened edges and trussed on their back surfaces, and may be held to the uprights by pivoted latches.
Patent GB-1505222-A (GB)
Title: Remote reading magnetic compass assembly
IPC: G01C17/36
Filed: 1976-02-25
Abstract: 1505222 Magnetic compass display LAITRAM CORP 25 Feb 1976 [6 March 1975]  07425/76 Heading G1A A magnetic compass is provided with a digital compass display for remote indication coupled via a flexible cable to the compass. The compass of the type whose output comprises a pulse train the number of pulses of which is representative of compass heading is coupled via a flexible cable 12  to an encapsulated display driving circuit 30. The driving circuit 30 output is coupled via flexible cable 16 to a multidigit LED display unit 22 arranged in a housing, Fig. 1 (not shown) and of cross-section approximate that of cable 16. Unit 22 is provided with a fastener for releasable attachment to a required mounting e.g. inside a Radar dome, Fig. 3 (not shown). Ground conductors 32, 34 provide a mechanical connection as well as an electrical connection to relieve stress.
Patent GB-453491-A (GB)
Title: Lettering applicable for showcards, signs and the like
IPC: G09F7/08
Filed: 1935-03-11
Abstract: 453,491. Signs. DAVIS, H. T. C., and DAVIES, T. A., 59A, Carlton Hill, St. John's Wood, London. March 11, 1935, No. 7469. [Class 3 (ii)] The characters of a loose-letter sign are formed with dovetail grooves A for engagement with projections C on cylindrical members B engaging in grooves E in a support b for the characters. Each member B is formed with a tongue D which may engage in any one of a number of channels F extending along the grooves E, whereby the inclination of the character with respect to its support may be adjusted. Members B, with or without the dovetails C, may be used for spacing the characters.
Patent GB-415824-A (GB)
Title: Improvements in thermostatic electric switches
IPC: H01H37/56
Filed: 1933-03-13
Abstract: 415,824. Thermal switches. GROVER, R. V., Hollybank, Uxbridge Common, and DRAYTON REGULATOR & INSTRUMENT CO., Ltd., West Drayton, both in Middlesex. March 13, 1933, No. 7523. [Class 38 (v).] A thermostatic switch for controlling the temperature of a room and adapted to be mounted on the wall in the same manner as a tumbler or rotary switch, comprises a base 16 carrying terminals 15, a housing 1 for the switch adapted to be fastened to the base by two or more screws with insulated heads electrically and mechanically connecting brackets on the base and housing respectively, and a removable cover 13. The housing 1 contains a partition on opposite sides of which are arranged a mercury switch 5 and a bimetallic spiral 2 for rotating the switch. The spiral is fixed at its inner end to a shaft 3 passing through the partition and carrying the mercury switch 5 and at its outer end to an arm 6 connected by a pin-and-slot arrangement to a setting arm 10. Adjustment of the arm 10 determines the temperature of operation. The pin of the pin-and-slot arrangement is eccentric and may be rotated to enable the members 6, 10 to be relatively adjusted.
Patent GB-131346-A (GB)
IPC: B01D1/02
Filed: 1918-05-04
Abstract: 131,346. Cunningham, E. A. May 4, 1918. Strainers having sheet straining-materials.-The bottom d<3> of a crystallizing tank D (shown in plan), is divided into segments, alternately perforated, and is covered by a segmental plate d<4> connected to a lever d<5>. After crystallization has taken place, the plate d<4> is rotated to uncover the perforated segments and to allow drainage to take place. Duplicate tanks are used to provide for continuous working.
Patent GB-896023-A (GB)
Title: Method for preparing bis-(dimethylamino)-borane
IPC: C07F5/02
Filed: 1961-03-01
Abstract: Bis-(dimethylamino) borane is made by heating tetra(dimethylamino)diboron at 225 DEG C.-500 DEG C. in an atmosphere substantially free of oxygen and water.  The process can be carried out in an evacuated closed system or in the presence of an inert gas such as nitrogen, argon or helium, and with or without an inert solvent, for example a mineral oil or other hydrocarbon solvent.  The volatile products can be fractionally distilled to separate the bis-(dimethylamino) borane.  In an example, tetra (dimethylamino) diboron is heated for 48 hours at 300 DEG C. in a sealed tube, and the product fractionated to give bis(dimethylamino) borane.
Patent GB-1100793-A (GB)
Title: Friction device operating mechanism and system
IPC: B60T17/08
Filed: 1966-02-21
Abstract: 1,100,793. Fluid-pressure brakes. WAGNER ELECTRIC CORPORATION. 21 Feb., 1966 [11 March, 1965], No. 7576/66. Heading F2F. In a compressed-air braking system of the kind including an actuator 11 which is provided with a compressed spring 38 acting in the brakeapplying direction on a piston 34 whose rod 36 is connected to a brake linkage 21, 22, chambers 39, 40 on opposite sides of the piston are connected, via conduits 10 and 16, respectively, with a protected reservoir 5 and with a main reservoir 3, so that a service brake application is effected by supplying air simultaneously to both chambers, a supply of air for brake release being maintained in the reservoir 5 which is protected by a check valve 7. The connection of chamber 39 with reservoir 5 includes a pressure-reducing valve 9, a manually operable valve 12, and an optional expansion reservoir 102 whose purpose is to reduce the amount of pressure rise in the conduit 10 when the piston moves under the preponderance of force in the brake-applying direction caused by the spring, pressure in chamber 40 being higher and acting over a greater piston area than that in chamber 39. A check valve 113 prevents this pressure rise from exceeding the supply pressure. A conventional driver's valve 19 supplies chamber 40 from reservoir 3, while a double check valve 15 enables chamber 40 to be supplied alternatively from the reservoir 5 via a manually operable emergency valve 20 which, like the driver's valve, connects chamber 40 selectively with either its associated pressure source or with the atmosphere. Valve 12 also operates in this way so that, if additional braking force is desired, chamber 39 may be vented to atmosphere. Valve 12 is primarily intended, however, to be used for parking, when chamber 40 is also vented, the force applied by the spring 38 alone then being adequate to maintain the vehicle stationary.
Patent GB-1139424-A (GB)
Title: Expansion shell for rock bolts
IPC: F16B13/08
Filed: 1966-02-21
Abstract: 1,139,424. Anchoring bolts. J. D. CUMMING. 21 Feb., 1966 [2 March, 1965], No. 7580/66. Heading F2H. An anchoring shell for rock bolts comprises a cage member 10 screwed on to the end of a bolt 13. Apertures equispaced about the periphery of the cage receive lugs 15 formed with pivots 17 which are received in sockets 25 of the cage and retained by a ring 21. The lugs have a portion 35 engageable with a stop 34 of the cage to limit inward movement and a portion 37 engageable with the end 36 of the ring to limit outward movement. The lugs are pivoted into engagement with the hole by a cam shaped plunger 19, which is normally retained in the position shown by a pin 33 which pin is deformed when the plunger is moved by a rod 38. In a modification, the plunger 19 is above the lugs and the pin is deformed by striking the end of the bore. In a further modification, the plunger is retained by a cotter pin and is spring loaded whereby the lugs are moved outwards when the pin is sheared.
Patent GB-1152103-A (GB)
Title: 2-Lower Alkyl-2,3-Dihydrothieno[3,2-c]Quinolines
IPC: C07D495/04
Filed: 1967-02-17
Abstract: 1,152,103. Dihydrothienoquinolines. SHIONOGI & CO. Ltd. 17 Feb., 1967 [17 Feb., 1966 (4)], No. 7694/67. Heading C2C. Novel compounds of the general formula wherein R is a C 1 -C 4  alkyl group and non-toxic salts thereof are prepared by one of the following routes wherein X is a halogen atom; the first method comprising heating the allylthioquinoline III to effect ring closure, the second method comprising heating the allylhydroxyquinoline IV with a mercapto-group-introducing agent or by treating the allylhalogenoquinoline V similarly, and the third method comprising heating the mercapto compound VI. The halogenoquinoline V may be prepared by treating the corresponding hydroxy compound IV with, for example, phosphorus oxyhalide. The allylthioquinoline III starting material is prepared by treating the mercaptoquinoline II with a suitable allyl halide. The mercaptoquinoline VI intermediate is prepared by reacting the halogenoquinoline V with a mercapto-group-introducing agent. The by-product bis(4-quinolyl)-sulphide is obtained when 4-allylthioquinoline is heated. Pharmaceutical compositions comprise, as active ingredient, a compound of the first general formula above and a carrier or diluent. The compounds are stated to have antipyretic and analgesic activity.
Patent GB-818464-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: BOSWELL DAVID
IPC: H01L23/045
Filed: 1956-03-12
Abstract: 818,464. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. Feb. 26, 1957 [March 12, 1956], No. 7734/56. Class 37. A semi-conductor device comprises a semiconductor body secured in good thermal and electrical contact to a metallic member, through which is sealed an insulated lead to the body, a second metallic member being cold welded to the first to provide a sealed envelope. The Figure shows a rectifier comprising a silicon wafer 8. The wafer 8 is initially treated as des. cribed in Specification 797,304, to provide a wafer with a PN junction with a bead 9 of tin and aluminium, and a bead 10 of tin in contact with opposite surfaces. The bead 10 is bonded to copper cup 3 containing a lead-through wire 7 insulated by a bead 6 of glass composition such as that described in Specification 817,636 [Group XXIII]. Wire 11 is then bonded to bead 9 and wire 7 by means of heat provided partly by heating the assembly and partly by passing current through wire 11. Excess tin is then removed by a masking and etching process with for example a solution of glacial acetic acid nitric acid, hydrofluoric acid and bromine. Masking may be effected by means of cured polyvinyl chloride. The assembly is enclosed in a sealed envelope by cold welding cup 3 to a copper cap 2 in dry nitrogen.
Patent GB-908685-A (GB)
Title: Improvements in or relating to arrangements embodying radiation sensitive devices
Inventor: JAMES IVANHOE JOHN PENFOUND
IPC: H04N5/228
Filed: 1958-03-11
Abstract: 908,685. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 26, 1959 [March 11, 1958], No. 7735/58. Class 40 (3). The effect of lag in a television pick-up tube 1 is reduced by applying the output signal to produce an image on a cathode-ray tube 4, viewing the image by a second pick-up tube 5 which also exhibits lag so as to produce a signal having a lag component of greater amplitude (i.e. a component due to tube 1 plus that due to tube 5), and subtracting in a stage 8 the signal from tube 5 from that due to tube 1 which is applied to stage 8 via an amplifier 7. Preferably the luminance of the image produced by tube 4 and the optical transmission of lens 6 are chosen so that the lag of tube 5 equals the lag of tube 1. It is shown that under these conditions, if the signal from tube 1 is amplified to twice the amplitude of that from tube 5, the lag components substantially cancel in the output of subtractor 8. Reference is made to photo-conductive, photoemissive and image-type pick-up tubes, and also tubes responsive to infra-red and X-rays. The invention may be applied to framesequential or simultaneous colour television by the provision of a display tube 4 and pick-up tube 5 combination for each colour component. Alternatively a single combination may be provided for a luminance signal formed by appropriate combination of the component colour signals. By attenuating the high frequency components produced by pick-up tube the high frequency components appearing at the output of subtractor 8 may be accentuated to introduce aperture correction.
Patent GB-467355-A (GB)
Title: Improvements relating to the lubrication of pulley or other like bearings
IPC: F16N9/02
Filed: 1936-03-14
Abstract: 467,355. Bearings. BARKER, W. H. March 14, 1936, No. 7746. [Class 12 (i)] The rollers a are mounted on fixed hollow spindles b by ball-bearings e. These are lubricated from grease or oil supplied through the nipple j to the hollow spindle, and lead by passages k to the collars f mounted on the spindle adjacent the bearings. The lubricant passes through passages i to an annular groove h in its end face.
Patent GB-315388-A (GB)
Title: Improvements relating to glass blowing machines
IPC: C03B9/20
Filed: 1929-03-11
Abstract: 315,388. Bullman Machine Co., Ltd., (Assignees of Hiilmann, H.). July 13, 1928, [Convention date]. Gathering.-Relates to a glassblowing machine of the kind in which parison moulds 1, carried by a rotating frame, dip into a mass of molteu glass contained in a fixed trough or forehearth. The mould, or a stripping-blade which precedes it, causes the glass in the trough to pile up towards one end, so that the surface of the glass becomes inclined to the horizontal. The invention consists in arranging that the moulds, m their passage through the trough, follow a path which rises gradually until the moulds are lifted out of the glass. The moulds are raised and lowered by a cam track consisting of a fixed portion 7 and an adjustable section 8 which is constructed as described in Specification 315,347. The central part 16 of the cranked section is not cylindrical, however, but is made partly conical and partly cylindrical. Thus a mould support 2, as it passes from the point 14 to the point 15, rises gradually, and the mould adapts itself to the slanting surface of the glass in the trough.
Patent GB-404494-A (GB)
Title: Automatic firearms in particular machine guns
IPC: F41A5/30
Filed: 1933-03-15
Abstract: 404,494. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V. BRNE, and HOLEK, V., 7, U. Lazaretu, Brunn, Czecho-Slovahia. March 15, 1933, No. 7895. [Classes 92 (ii) and 119.] To prevent recoil shocks being communicated to the gun support when firing gas-operated guns, the barrel and breech - block casing are permitted to recoil as a unit with respect to the firing handle or stock. In the machine gun shown the breech-block casing 2 with barrel 1 and gas-pressure motor 4, 5 form one unit which can recoil a distance limited by a pin and slot 28, 29 with respect to a second unit formed by the casing 20 carrying the firing mechanism 17 and stock 32. The casing 20 forms a closure for the open bottom and rear end of the casing 2. On discharge, abutments on the casing 2 engage a plunger 48 to compress a spring 43 the recoil movement being damped by an inclined split friction-ring 44. When the bullet has left the barrel, the gun gases act upon the piston 5 to force the slide 6 rearwards against the action of a spring 33, thereby tilting the breech-block 7 away from an abutment 9 to unlock and afterwards open the breech, the plunger 48 then acting as a buffer for the breech-block. The breech-block is retained in its rear position by a sear 12 controlled by a trigger 17, the firing mechanism being adjustable for single shots, continuous fire, or safety, by rotating a pin 16. The butt-plate is spring mounted at the rear end of the stock. On removing the pin 28 the gun is readily disassembled.