baber/WOPTO huggingface dataset:
Patent GB-1125231-A (GB)
Title: Improvements in or relating to subhalide distillation process for the recovery of aluminium
Inventor: SOUTHAM FREDERICK WILLIAM
IPC: C01F7/56
Filed: 1966-05-06
Abstract: 1,125,231. Aluminium production. ALUMINIUM LABORATORIES Ltd. May 6, 1966 [May 19, 1965], No.20283/66. Heading C7D. In a subhalide distillation process for the production of A1, A1 fog droplets are removed from the decomposer exit gases by coalescing them at a temperature above the melting point of Al. As shown in elevation in Fig. 1 and plan in Fig. 2, the decomposer 10 consists of two chambers 14, 15 interconnected at 17 and filled with A1 to a common level 20. A1 from the pool is sprayed in the chambers 14, 15 by screw lifts 25a, 25b, 26a, 26b, 38 to decompose the AlCl fed in at 22. The exit gases pass via a tangential passage 68 to a cyclone chamber 67, where the A1 droplets coalesce. The coalesced Al is returned, via a passage 79, to the chamber 15 and the purified AlCl 3  removed for reuse at 24. Al from the chambers 14, 15 is removed through ports 44, 47, cooled and returned through ports 44, 46 respectively. Product A1 is tapped at 83. In an alternative embodiment, Fig. 4 (not shown), the cyclone is replaced by an impingement scrubber of the Doyle type. Other arrangements in which the exit gases are bubbled through molten A1 are also described.
Patent GB-641219-A (GB)
Title: Improvements in electronic scanning methods and apparatus, suitable for colour television and other purposes
IPC: H04N9/20
Filed: 1946-07-08
Abstract: 641,219. Television. RADIO CORPORA. TION OF AMERICA. July 8, 1946, No. 20346. Convention date, July 7, 1945. [Class 40 (iii)] [Also in Group XL (a)] In a television system in which a target area is scanned by a plurality of electron beam points (e.g. colour television), precise registration of the rasters is effected by developing electrostatic control charges at the target coincidently with the development of the said beam points. As applied to a three-colour television receiving system in which electron beams 41, 42, 43 modulated respectively by different colour component signals trace similar and approximately overlapping rasters on the face 63 of target 45 precise registration of these rasters is brought about by means of a positive electrostatic charge raster which is set up on face 83 of the target under the control of an unmodulated high velocity electron beam 79, the scanning deflection of which occurs synchronously with that of the modulated beams. Face 63 of the target may be formed as a series of elements of pyramidal or tetrahedral form, the faces of each element being coated with compounds which luminesce, respectively, in the (different) component colours and so arranged that each beam is normal to the face of each element which luminesces in the colour represented by the beam modulation, the point of registration of the beams being in the plane of the base of the elements. Alternatively, the face 63 may consist of separate areas which luminesce in the different component colours a grid-like masking member being arranged relatively close to the target and between it and the beam sources so as to shield the target from impact of scanning beams which, otherwise, would reach target areas which luminesce in colours other than that represented by the beam modulation.
Patent GB-1280104-A (GB)
Title: Circuit for regulating the mean frequency of an oscillating system
IPC: H03B19/14
Filed: 1970-04-28
Abstract: 1280104 Automatic frequency control; controlled oscillators COMPAGNIE DES MONTRES LONGINES FRANCILLON SA and BERNARD GOLAY SA 28 April 1970 [8 May 1969] 20359/70 Headings H3A and H3R A circuit for regulating the frequency of an oscillator comprises a switch T1, T2 which periodically connects a capacitor C1 to the resonant circuit LC of the oscillator. The oscillator produces output pulses at the collector of transistor T3, which are compared with a reference signal f 0  in a phase comparator T4, T5. The output from the comparator is amplified by T6 and used to periodically switch the circuit T1, T2.
Patent GB-1016484-A (GB)
Title: Improvements in or relating to machines for producing plush fabric
Inventor: WUENSCH WOLFGANG
IPC: D04B23/08
Filed: 1964-05-15
Abstract: 1,016,484. Tufting machines, knitting, .fabrics. NAHWIRKMASCHINENBAU MALIMO KARL MARXSTADT:VEB. May 15, 1964, No.20363/64. Headings D1C, D1G and D1K. In a machine for producing tufted fabric and comprising eyed needles and holders adapted to retain the thrown loops as the needles withdraw from the base fabric, each needle is formed between the point and said eye with a hook into which a second thread is introduced to be drawn through the base fabric oppositely to the threads passing through the needle eyes. As shown, a needle 1 having a point 9 is formed with an eye 7 and a hook 8 which is closable by a slide 10 and which faces in the direction opposite to the feed direction X of the base fabric 6. The tuft loops 13 thrown by the threads 11 passing through the needle eyes are held by members 4 which move by ariel motion into said loops, and which may also receive lateral motion to determine the heights of the loops. Second threade 12 are laid in the hooks 8 by guides 5, the hooks being closed by the slides 10 as the needles withdraw, and the threads 12 forming rows of chain stitches 16 to secure the loops 13 in position. The guides 5 may alternatively be jogged to lay the threads 12 in alternate adjacent rows of needles for producing a knitted formation. The base fabric may either be woven or consist of weft threads. In a modification, the hooks 8 face in the feed direction X, whereby tuft loops, similar to the loops 13, are formed on the reverse side of the base fabric.
Patent GB-1090453-A (GB)
Title: Improvements in and relating to stands comprising a board for supporting a drawing or other document in an inclined raised position
Inventor: BENNETT JACK
IPC: B43L5/02
Filed: 1964-05-15
Abstract: 1,090,453. Drawing-boards. E. N. MASON & SONS Ltd. April 29, 1965 [May 15, 1964], No. 20427/64. Heading B6P. A stand for a drawing-board comprises parallel rails 2 to which are pivoted at 8a two support elements 8 each comprising rails 10 having pivoted thereto on pins 14 a telescopic stay 12 pivoted to the rails 2 at 13. A board 9 is frictionally slidable on the rails 10 by means of nylon blocks 16 to an extent limited by stops 11, 11a. In the horizontal position of the board and elements 8, the board can be pulled forwards and then tilted to the position shown, being held in tilted position by springs in the stays 12. The angle of tilt is limited by pawls 15. In the horizontal position, the pins 14 and pins carrying the pawls are accommodated in slots 6, 7 in the rails 2. An angle member 19 can be moved to the interrupted line position to support a document.
Patent GB-365013-A (GB)
Title: Improvements in or relating to preparing machines for spinning
IPC: D01H5/62
Filed: 1931-07-16
Abstract: 365,013. Cleaning-arrangements for gill-bars. SOC. TEXTILE ACCESSOIRES and FIEVET, E., 57, Rue Esquermoise, Lille, France. July 16, 1931, No. 20439. Convention date, July 8, 1930. Addition to 308,338, [Class 120 (i), Spinning, Preparation &c. for]. [Class 120 (i).] A modified form of the cleaning member described in the parent Specification com - prises a rubber blade, plate, or band 9 which is mounted so as to remain stationary its outer edge clearing the faller bars and gill pins as they drop from the upper to the lower slide. The blade 9 is clamped by a stirrup 10, 11 against the lower edge of the conductor 4.
Patent GB-822246-A (GB)
Title: Hook block assembly
IPC: B66C1/34
Filed: 1957-06-28
Abstract: 822,246. Travelling pulley blocks. NATIONAL SUPPLY CO., and OIL WELL ENGINEERING CO. Ltd. June 28, 1957 [Feb. 5, 1957], No. 20452/57. Class 78 (5). Travelling pulley block 10 carries spring hook 20 by means of universal joint 100. Thus, block 10 carries member 22 by means of trunnions 23 (not shown), the member 22 carrying skirt 38 by means of pivot pin 25 to complete the universal joint. Skirt 38 carries housing 36 resiliently by means of springs 33, 34 which, at one end, engage shoulder 35 of the housing and, at the other end, engage assembly 32 supported by nut 31 fast with shank 26 fast with said skirt 38. In turn, housing 36 carries hook 20, the latter being threaded on to the housing at 40 and locked thereto manually by the engagement of spring-loaded pawl 65 with the ring 42 connected by pin and vertical groove to shank 26. The hook carries tongue 49, the tongue being pivoted thereto at 50 and secured in closed position by manually-operated latch 56. Specification 740,750, [Group XXV], is referred to.
Patent GB-136253-A (GB)
Title: Improvements in Artificial Hands.
Inventor: ANDERSON WILLIAM PURVES
IPC: A61F2/58
Filed: 1918-12-10
Abstract: 136,253. Anderson, W. P., Clarke, N. C., Whitelaw, J. F., and Read, R. H. Dec. 10, 1918. Limbs, artificial.-Comprises a construction of hand of the type in which the fingers are spring- closed and are opened by a reciprocating slide arranged so that the hand cannot be opened by pressure applied between the fingers and, thumb. The invention consists in the general arrangement and construction of the operating-mechanism, one of the main features of which is the provision of one or more inclined slots in the slide engaging with cranks forming extensions of the fingers or fingers and thumb. The first and second fingers 24, 25 are pivoted on a, shaft 5a fitted with two crank-arms 6, 7. The crank 6 engages the slot in the slide 10, so that when the slide is drawn rearwardly by the cord 11 against the action of the spring 19, the fingers are opened. This movement results in the simultaneous rotation of the crank 7, which opens the thumb through the medium of the slotted tail-piece 15. The angle of the slot in the slide is arranged! so that pressure applied between the thumb and fingers cannot force the slide rearwardly to open the hand. The slide is restored by the spring 19 when released, to enable the fingers and thumb to take a three-point grip on an object. The whole of the operating-mechanism can be built up as a complete unit on a plate 3 before the plate is fixed in the body of the hand. In some case, the slide may be furnished with a second slot for direct actuation of the thumb. The third and fcurth fingers may be spring-controlled in any convenient manner.
Patent GB-1090303-A (GB)
Title: Improvements in or relating to continuous metal casting apparatus
IPC: B22D11/12
Filed: 1966-05-09
Abstract: 1,090,303. Automatic attitude control. KOPPERS CO. Inc. May 9, 1966 [June 18, 1965], No.20527/66. Heading G3R. A metal casting continuously withdrawn from a mould by pinch rolls, travels in a curved path to straightener rolls, and deviations from a desired curved path are self-corrected by automatic control of the speed of the straightener rolls. As shown, a metal casting 19, continuously withdrawn from a water-cooled mould 17 by pinch rolls 25 and further cooled at 23, is bent in the form of an arc before entering straightener rolls 29. Metal is supplied to mould 17 from a tun dish 13 and the rate of withdrawal of the casting is made dependent on the level in the mould by a radiation type level detector automatically controlling at 28 the speed of a motor 27 driving the pinch rolls. Variations in the attitude of the casting are detected by a weighted lever 43 which adjusts the core of a transformer 66 so that, if the movement exceeds a predetermined minimum, the voltage applied from a potentiometer 39 controls, through an amplifier 36, the speed of a motor 35 driving the straightener rolls and the casting is restored to a desired attitude. Feedback dependent on the speed of motor 35 is applied to the input of amplifier 36 from a tachogenerator 38 driven by motor 35. A changeover switch 46 is provided so that the basic speed of motor 35 may be adjusted manually by a potentiometer 43 or automatically in dependence on the speed of the pinch rolls by the output of a tachogenerator 42 driven by motor 27. Excessive movement of lever 43 causes operation of limit switches 77, 79 so that an alarm 103 is sounded and, if the casting is pulled too straight, motor 35 is temporarily stopped. Alarm 103 may be silenced by operation of a push button 105. Use of a radiation device instead of a feeler to detect changes in attitude of the casting is referred to.
Patent GB-1109677-A (GB)
Title: Regenerating arrangement for bipolar signals
IPC: H04L25/06
Filed: 1965-05-14
Abstract: 1,109,677. Binary pulse clipping circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. 14 May, 1965 [14 May, 1964], No. 20597/65. Heading H3T. The D.C. level for the input of a bi-polar signal clipper is derived through a low-pass filter from the output of the clipper and means are provided which in the embodiment prevent false operation due to the drift of the D.C. level during a sustained " O " level while the signal is interrupted. In Fig. 5 the input signal is applied to a clipper B the output of which is fed through a low-pass filter F to the input so as to determine the clipping level. The output pulses also pass through a polarity change detector circuit N to render a transistor T3 momentarily conductive and thus to maintain a capacitor C2 discharged. If, however, the signal is interrupted the capacitor charges sufficiently to change over a Schmitt trigger T1 T2 to operate a relay W1. The contact of this relay connects in parallel with the output of the filter F a transformer Tr which shunts the output of the filter and so reduces the D.C. applied to the clipper. When the signals restart the Schmitt trigger is restored and the relay contact is opened. The transformer Tr acts as a high-pass filter and the interruption of the signal produces a decaying waveform at its output. This is added to the gradually returning D.C. level from the filter to provide the correct D.C. level during this transitional period. The interruption of the signal may alternatively be recognized by the interruption of a pilot or of a voicefrequency data signal. In an alternative circuit (Fig. 4, not shown) the D.C. and the transient correcting signals are added to the input signals in separate mixing circuits (S, Z) and the circuit for providing the transient correcting signal comprises a separate high-pass filter, amplifier and polarity inverter (HP, A, PV).
Patent GB-594760-A (GB)
Title: Improvements in or relating to synthetic resin composition for impregnating fibrous material
IPC: C08J5/24
Filed: 1943-12-09
Abstract: An aqueous emulsion, suitable for use as a coating composition, comprises an aqueous solution or dispersion of a phenolic resin admixed with an aqueous emulsion of pine wood pitch, sold as "Vinsol."  The pine wood pitch comprises a residue low in abietic acid remaining after the separation of refined resin high in abietic acid from resinous material obtained by extraction of pine wood with a solvent and is characterised by its insolubility in cold petroleum hydrocarbons, it may be used in ammoniacal solution or after modification by condensation with formaldehyde. The emulsion may be used to impregnate glass wool, asbestos, rock wool, paper, pulp.  A solution of casein, ammonia and water is heated for 30 mins. with the extracted pine wood pitch and to the paste thus formed are added 10 parts water-soluble phenol-aldehyde condensate in 10 parts ammonia. The diluted varnish is sprayed on to glass wool which is then dried at 110 DEG  C.; (2) 100 parts pine wood pitch reacted with 5 parts paraformaldehyde and the product mixed with 90 parts phenol-aldehyde resin.  The product was added to an emulsion comprising 50 parts casein, 100 parts 28 per cent ammonia, 200 parts water and 1000 parts pine wood pitch.  The phenol-aldehyde condensates may be prepared from (a) phenol, cresol, xylenol, 2,2-bishydroxy propane and (b) formaldehyde, acetaldehyde, furfural.  An emulsion of pine wood pitch prepared as described in Specification 582,986, [Group III], may be used. Specification 594,759, [Group V], also is referred to.
Patent GB-723702-A (GB)
Title: Improvements in and relating to heat interchangers and refrigeration or cooling systems
IPC: F25D11/00
Filed: 1952-08-18
Abstract: 723,702. Refrigerating. DOLE REFRIGERTING CO. Aug. 18, 1952 [July 23, 1952], No. 20724/52. Class 29. A heat-exchange plate for evaporating liquid refrigerant formed in an evaporator during defrosting, comprises a sealed evacuated housing containing heat storage material and two conduits, one a heating conduit and the other for the passage of refrigerant, each having an inlet and an outlet to the housing exterior. As shown in Fig. 3, the housing comprises two walls 1, 10 sealed together around their peripheries and the refrigerant conduit AI is defined by the wall 1 and an embossed intermediate wall 2. The space BI between the wall 2 and the wall 10 is filled with the heat storage material such as glycerine or alcohol and water, or an eutectic. The heating conduit comprises a tube 50 containing insulation 52 and an electric resistance heater 51. As shown in Fig. 5, the lower wall 20 is not in contact with the wall 2 but is in heat exchange relation therewith by means of partitions 22 held together by rods 23 and apertured at 26. The heating conduit 115b passes through the apertures 26. As shown in Fig. 7, the refrigerant conduit comprises a pipe 73 and the heating conduit comprises a pipe 74 for fluid located around the periphery of the plate. According to Fig. 8 (not shown), the refrigerant conduit is a pipe held between the two walls of the housing and the heating conduit is an electric heater within a tube of the same diameter as the refrigerant conduit. As shown in Fig. 9, an evaporator 107 is defrosted by hot gas flowing through pipe 103a and liquid refrigerant is re-evaporated in the conduit 116 of the plate A by heat from the heating conduit 115. Between the plate A and the compressor 100 is located a refrigerant trap 117 from which a lubricant return 117a leads to the suction pipe 118. The defrosting is initiated by a timing device B which opens valve 120 in pipe 103a, energises a fan 123 adjacent evaporator 107 and energises the heating conduit 115. A refrigerant dryer 109 and a flow indicator 108 are included in the circuit. Specification 707,102 is referred to.
Patent GB-975983-A (GB)
Title: Improvements in and relating to sound transmitting instruments
IPC: H04R9/02
Filed: 1962-05-30
Abstract: 975,983. Transducers. BLAUPUNKTWERKE G.m.b.H. May 30, 1962 [July 1, 1961], No. 20727/62. Heading H4J. In a method of constructing the magnet system of a moving coil-type transducer, a mild steel core 2 (Fig. 1), is attached to a mild steel plate 1 and a centering ring 3 is then slid on to the end of the core, thereafter an annular, permanent magnet 4 is secured to plate 1 and an apertured mild steel plate 6 is secured to the magnet, finally ring 3 is pushed along the core to leave an air gap between the core and the plate 6 (Fig. 2, not shown). The ring is retained in the system by means of a bead and groove 11 and 10 or by means of an increased diameter of core at the lower end thereof which results in a forced fit. The plates 1 and 6 are secured to the magnet by an adhesive, e.g. an ethoxylene resin and the ring is made of synthetic resin such as a polypropylene or a polycarbonate. The centering ring may be of channel section (Fig. 5) in which case the inner edge 12 thereof is pushed down the core after plate 6 has been properly orientated with respect to the core, the outer edge remaining wedged between the magnet and plate 6.
Patent GB-756628-A (GB)
Title: Improvements in or relating to coin freed mechanism
Inventor: HALL FREDERICK WILLIAM
IPC: G07F5/02
Filed: 1954-07-16
Abstract: 756,628 Coin-freed delivery apparatus. HALL TELEPHONE ACCESSORIES, Ltd. June 30, 1955 [July 16, 1954], No. 20771/54. Class 27. The inserted coin (or coins) 6 rests on the floor 7 of a fixed holder 5 and, on rotation of a driving disc 1, one of several pins 3 on the disc moves the coin against the longer arm of a U-shaped lever 12 and withdraws the other arm 14 from a heel 15 on a pawl 11, thus allowing a spring 13 to enagage the pawl with a ratchet wheel 8 so that the driving disc is coupled to a shaft 2 and driven member 9. A pawl 17 prevents rotation in the wrong direction and, when the disc 1 has completed a full revolution, the heel 15 of the pawl 11 strikes the arm 14 so that the pawl is moved out of engagement with the ratchet wheel. The shaft or driven member controls slight rotation of the magazine of a bottle-vending machine.
Patent GB-839632-A (GB)
Title: Improvements in bevel cutting shearing machines for metal sheets
IPC: B23D15/10
Filed: 1956-07-04
Abstract: 839,632. Shearing. CORPET, LOUVET & CIE. July 4, 1956 [July 12, 1955], No. 20778/56, Class 83 (4). A sheet metal shear has two moving blades which co-operate in succession with a a fixed blade to first make a vertical cut and then a bevel cut, e.g. to prepare the edge of a sheet for welding. The bevel cutting blade 5, Fig. 1, is carried in a cradle 1 rotatably mounted on a pivot 2 in the frame 3. The vertically cutting blade 8 is secured to a carrier 7 slidable in the cradle 1. Actuation of a fluid pressure ram 9 moves the blade 8 to make the vertical cut until a projection 12 on the carrier 7 engages the cradle 1 whereupon the blade 5 makes a bevel cut. The cradle is retracted by a fluid pressure device 10 and the carrier 7 is raised by the ram 9 or by a device such as a spring. In a modification, the carrier 7 which is directly actuated by the ram 9 is pivotally mounted on the cradle 1. As shown in Figs. 6 and 8, the two movable blades 25, 26 are secured to a cradle 24 rotatable about a pivot 27 on a rocking member 28 pivotally mounted on the frame. The rocking member 28 is retained by a detent 32. When the blade 25 has made the vertical cut, a projection 33 on the cradle 24 depresses the detent 32 and an abutment 30 on the cradle 24 engages an abutment 31 on the rocking member which together with the cradle rotates about a pivot 29 while the blade 26 makes the bevel cut. A manually preset stop may be provided which actuates a valve when the vertical cut has been made to stop the ram before the bevel cut is commenced.
Patent GB-207839-A (GB)
Abstract: 207,839. Jackson, W. J. Mellersh-, (International Callophone Corporation). July 5, 1922. Drawings to Specification. Electromagnetic interrupters. - The armature of a buzzer used in a telephone system shunts the winding through a resistance so chosen that a weak current vibrates the armature whilst a strong current .keeps it in its attracted position.
Patent GB-1312733-A (GB)
Title: Photoelectrophoretic imaging system
IPC: G03G17/04
Filed: 1970-04-30
Abstract: 1312733 Photo-electrophoretic imaging XEROX CORP 30 April 1970 [2 May 1969] 20905/70 Heading G2H A photo-electrophoretic imaging system comprises an injecting electrode 10, a blocking electrode web 20, an electrically biased electrode roller 24 and web guide rollers 22, 26 held at the same potential as electrode 10. This arrangement is intended to prevent arcing between the electrodes, The electrode roller 24 may be replaced by a corona generator (68; Fig. 2, not shown) or a plate (88; Fig.3, not shown).
Patent GB-427710-A (GB)
Title: Cultivator
IPC: B62D51/06
Filed: 1933-07-25
Abstract: 427,710. Machines for working land. BLANCHARD, E., 9, Avenue Isola-Bella, Cannes, France. July 25, 1933, No. 20916. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 26, 1934]. [Class 6 (i)] A rotary cultivator comprises a frame having front wheels 10 and guiding handles 9, a transverse rear horizontal shaft 5, one or more inclined disc tools mounted on the shaft to be rotated by it, and means for rotating the shaft 5 independently of the progression of the implement. Two disc tools 1 may be inclined towards one another and provided with spring shock absorbers 3 acting on their hubs. The shaft 5 may be driven in either direction from a motor 14 through change gearing &c. The depth of work is regulated by means of a quadrant 8. The discs 1 may be reversed, and may be circular, oval, toothed, smooth, dished, &c.