baber/WOPTO huggingface dataset:
Patent GB-646699-A (GB)
Title: Improvements in radio signal recording system
IPC: H03J7/32
Filed: 1944-07-11
Abstract: 646,699. Wireless receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 11, 1944, No. 13287. Convention date, July 31, 1942. [Class 40 (v)] A signal recording system comprises a receiver, whose tuning is cyclically varied over a predetermined range in response to the control voltage of a control-wave generator, combined with a facsimile recorder actuated by the output of the receiver. A cathode-ray tube may be employed, one set of plates being connected to the control voltage and the other set to the receiver output. In Fig. 1, the receiver 1 contains a reactance tube or other means for varying its tuning in response to the control voltage from the sweep voltage generator 5. The receiver output is connected across the horizontal deflecting plates of cathode-ray tube 7 and through compressor amplifier 9 and amplifier 11 to the printing bar 13 of the facsimile recorder 15. The recorder drum carries a helix and its shaft 17 has a cam 19 arranged to operate a switch 21 in the synchronizing circuit of the generator 5. The vertical plates of the tube 7 are connected to the output of generator 5. Rotation of shaft 17 causes the operation of switch 21 once each revolution, initiating a sweep voltage cycle in the generator 5. The beam of tube 7 is thereby deflected to produce a vertical track on the screen. Simultaneously the tuning of the receiver is swept through a predetermined band of frequencies, and any signals within this band are picked up by an antenna 3, detected by receiver 1 and thereby produce a horizontal deflection of the beam of the tube 7 at a point on the vertical track corresponding to the frequency of the signal. The output pulses from the receiver are applied through amplifiers 9, 11 to the printer bar 13 producing a mark on the paper 23 at a point along its width corresponding to the signal frequency.
Patent GB-706124-A (GB)
Title: Improvements in or relating to process of producing shaped articles from polymeric spinning solution
IPC: F16K1/52
Filed: 1951-06-05
Abstract: Shaped articles such as fibres, ribbons and films are obtained from a solution of an acrylonitrile polymer (containing at least 80 per cent. by weight of acrylonitrile in the polymer molecule) in ethylene carbonate by extruding the solution into a liquid coagulating medium comprising ethylene carbonate and a water-soluble, liquid, polyhydric aliphatic alcoholic compound; a portion of the liquid coagulating medium is removed from the operating coagulating bath and is cooled to a temperature below that at which ethylene carbonate precipitates therefrom but above the congealing point of the polyhydric compound, and when some or all of the ethylene carbonate has precipitated the latter is separated from the liquid, at least a portion of which is returned to the operating coagulating bath, and the cycle is repeated. This treatment prevents undesirable increase in the concentration of ethylene carbonate in the coagulating bath during the spinning operation.  The concentration of ethylene carbonate in the bath may be maintained at 10-30 per cent. by weight.  The polyhydric component of the coagulating medium may be an alkylene glycol such as ethylene-, propylene-, or 1.4-butylene glycol, or 2-methylpentanediol-2.4 or a polyalkylene glycol ether such as di-, tri-, or tetraethylene or -propylene glycol, or it may be glycerol or thiodiethylene glycol.  For the precipitation of ethylene carbonate, the used bath liquid may be cooled to a temperature between +10 and -20 DEG C.  The precipitated ethylene carbonate may be removed by filtering or centrifuging, and in order to reduce the proportion of adherent liquid to less than 10 per cent. the centrifuge may be rotated at such a speed that the centrifugal force is more than 200 times the force of gravity. The separated ethylene carbonate may be used to prepare additional quantities of the polymer spinning solution.  If desired it may be purified prior to re-use, e.g. by rinsing with ice-cold water or carbon tetrachloride, by crystallization from ice-cold water, by distillation under reduced pressure, or by treatment with charcoal.  Decolorizing by means of charcoal may be effected prior to cooling the portion of the coagulating bath which is removed for the recovery treatment.  The polymer may be a copolymer of acrylonitrile with a vinyl ester or ether, a vinyl ketone, acrylic or methacrylic acid or an ester or amide thereof, allyl alcohol or an allyl ester, styrene, vinyl pyridine, vinyl chloride, vinyl fluoride or N-vinyl carbazole.  The filaments and other articles obtained may be subjected to stretching in steam or other medium and may subsequently be subjected to a heat setting treatment while in relaxed condition.
Patent GB-561215-A (GB)
Title: Improvements in or relating to fastening devices
IPC: F16B5/06
Filed: 1942-09-22
Abstract: 561,215. Bolting - devices. RAPP, R. LA F., and SULLIVAN, G. C. Sept. 22, 1942, Nos. 13337 and 13338. Convention dates, Nov. 12, 1941 and May 7, 1942. [Classes 44 and 89 (i)] A bolting - device has a rotating element passed through an opening or slot in the material to be connected and a sleeve positioned in the slot and carrying the bolt,which so engages the rotating element that on screwing up the bolt, the rotating element is turned into locking position. Fig. I shows such a device in the inserting position, while Fig. II shows the device in the locking position, the bifurcated rotating element 18 having been turned so that the limbs can pass the part 16 of the sleeve and the ends 20, 21 are brought into clamping contact with the sheets &c. to be connected. The bolt 10 is housed in the head 14 of the sleeve and engages a tapped bore in the part 18. The sleeve is formed at 17, Figs. I and V, to limit the rotation of the member 18 to about ninety degrees and an aperture 137 may serve to indicate whether the parts are in the insertion or the locking position. The nut part of the member 18 is preferably fitted with a fibre or like insert to ensure sufficient friction for turning the part 18 into the looking position. Modifications are illustrated applied to flush work both with countersunk and dimpled plates. Some of the elements may be interchanged between the sleeve and rotating members and various means are illustrated for limiting the rotation. Packing may be introduced between the edge of the bolt 10 and the recess in the head 14 of the sleeve and between the underside of the head 14 and the plates to be clamped to make the joint fluid tight. Spring, rubber, leather, fibre &c. washers, collars &c. may be fitted between the bolt and the sleeve to restrict the tendency of the parts to move' accidentally from the insertion position. Various ways of attaching the device to structural elements are illustrated.
Patent GB-133854-A (GB)
IPC: B60B5/04
Abstract: 133,854. Brampton, F. W. Jan. 4, 1919. Compression-spoke wheels; disk wheels. -Wheels for vehicles, consist of a combination of wooden or like spokes 1 and a metal disk acting as a strut between the hub shell 14 and the rim. A second metal disk 3 may be disposed on the other side of the spokes, and the two disks may be secured together at the rim by a band 11 with channelled sides embracing flanges on the disks. The disk 8 is dished as shown and formed with a shoulder bearing on a flange on the hub shell, which has a central sleeve flanged over the disk 3. To accommodate the valve stem, a chamber 17 pressed from sheet metal is let into the disk 3 between two spokes.
Patent GB-650398-A (GB)
Title: Improvements in or relating to door latching mechanisms
IPC: E05B65/32
Filed: 1948-05-18
Abstract: 650,398. Door latches. HOUDAILLE-HERSHEY CORPORATION. May 18, 1948, No. 13411. Convention date, Oct. 21, 1947. [Class 44] A door latch mechanism comprises a pivoted bolt, retracting means for the bolt, outside operating means for actuating the retracting means and key operated locking means adapted to shift the retracting means to render the actuating means ineffective. The parts of the mechanism are mounted on two plates, one parallel to the door edge, the other parallel to the inside door wall and in one form, Fig. 1 shows the first plate 10 and Fig. 4 the second plate 11. In this form the bolt 32 is carried on a plate B pivoted at 31 and having a finger 41 co-operating with an arm 40 on the retracting lever 36. A lever 45 actuated, e.g. by an outside push button has an arm 44 guided in a slot 43 in the plate 11 and adapted to bear down on the arm 42 of the retracting lever 36, to retract the bolt. By means of a, lever 51 controlled by a lock spindle in the hole 52 and having arms 53, 54 embracing a lug 58 on the lever 36, the arm 42 may be lifted so as to be disposed out of the path of the arm 44 thus rendering the outside push button ineffective. The locking lever 51 may also be moved to and from the locking position by means of an inside push button or the like acting through a rod 59 and a lever 39 connected by a pin 60 and slot 61 with the locking lever. The latch is unlocked by the inside handle linked through a pin and slot connection 48, 49 with the retracting lever. Rotation of the inside handle first returns the lever 36 to the normal position and further rotation releases the latch bolt 32. The locking lever 51 is retained in either position by a spring 56 co-operating with a projection 55 The locking lever is always returned to the unlocked position by the closing of the door which displaces the latch bolt 32 causing engagement between the finger 41 and the lug 58. A rotor bolt A of the kind turned, by the closing contact with the keeper plate, into the latching position is retained by a lever 23 having a tooth 34 for engagement with the wavy surface 35 of a lever 26, the free end 29 of which is. supported on a flat 30 in the plate B. Retraction of the bolt 32 turns the plate B to allow the lever 26 to fall and therefore releases the rotor bolt A. In another form the second plate 11 of which is shown in Fig. 13 with retracting lever 87 in the locked position clear of the path of the outside operating lever 84, thelocking lever 99 andsecondary control lever 89 are pivoted together at 101 and the retraction lever 87 and 'the lever 89 are pivoted on a shiftable pin 88. As the locking lever is moved to and from the locking position by the outside key lock or inside means acting through rods 102, 106 the pin 88 slides from one end of the slot 90 to theother, and by the contact at 92 with the plate B the retracting lever 87 tilts so that the arm 91 moves into and out of the path of the lever 84.
Patent GB-1340599-A (GB)
Title: Apparatus for providing equalized signals
IPC: H04L25/04
Filed: 1971-05-07
Abstract: 1340599 Active filters INTERNATIONAL BUSINESS MACHINES CORP 7 May 1971 [11 June 1970] 13621/71 Heading H3U In a data processing system, data is converted from a first to a second domain by a transformation device, is processed and is fed back to a second input of the transformation device which then reconverts it back to the first domain. Sampled or digital data x(k) in the time domain and fedback data x 1 (k) in the frequency domain are applied as real and imaginary components of a signal z(k) to a Fast Fourier Transformation device 1. The transformed output z(j) is then fed to a device 13 which extracts the real component x(j) transformed into the frequency domain and the imaginary component x 1 (j) transformed into the time domain. The signal x(j) is the processed, e.g. equalized or filtered, by 15, 16 to give the required feedback signal x 1 (k) and the signal x 1 (j) provides the required processed output in the time domain.
Patent GB-326702-A (GB)
Title: Apparatus for feeding cut tobacco uniformly to the rodforming mechanism of cigarette machines
IPC: A24C5/39
Filed: 1929-05-02
Abstract: 326,702. Schunemann, H., and Neuerburg'sche Verwaltungsges. May 2, 1929. Cigarette - making machines.-The feeding-device for delivering cut tobacco to the rod-forming mechanism of a cigarette machine is driven through change-speed gearing which is automatically adjusted to maintain a uniform feed of tobacco. The feeding-device shown comprises a pin cylinder 57 arranged over a tobaccodelivering channel 58 and rotated through speed gearing 52, 53, the belt 54 of which is shifted automatically by a coupling-device arranged between the driving-shaft 34 and the shaft 35 of the filling-cylinder 31. A pinion 32 on the shaft 34 gears with a wheel 33, which is loose on the shaft 35 but is connected by a friction clutch 39 to a drum 38 connected by a spiral spring 49 to a disc 42 fixed on the shaft 35. The disc 42 carries planet pinions 43 gearing with internal teeth 37 on the drum 38 and with a sun pinion 44. The hub of the sun pinion has screw-threaded engagement with a member 46 slidable along the shaft and gearing with a quadrant 48, a lever extension 50 of which actuates the belt-shifter 51. When owing to the supply of too much tobacco, the filling-cylinder 31 meets with greater resistance to its rotation, the disc 42 is rotated relatively to the drum 38 against the action of the spring 49, causing the sun pinion to rotate and adjust the belt-shifter to reduce the speed of the feeding- device.
Patent GB-108931-A (GB)
Title: Improvements in or relating to Machines for the Production of Photographic Prints.
Inventor: FOX EDWIN FRANK
IPC: G03B27/02
Filed: 1916-09-27
Abstract: 108,931. Fox, E. F., and Parker, W. J. Sept. 27, 191G Printing-apparatus with intermittent step-bystep movement of sensitive surface.-In a photographic printing-machine for producing a series of prints on a strip of sensitized material, the strip is clipped to one end of a rack-bar F which may be intermittently moved forward by the continuous rotation of a shaft J. This shaft carries (1) an arm J<2> to which is attached a pawl J<3> for engaging with the rack teeth F', (2) a cam L for depressing a pressure block H which presses the film &c. against the negative, and (3) a cam J<4> which operates a plunger switch B controlling the lamp; or, alternatively, a shade may be adapted to cover the lamp. At the end of the forward movement, the pawl J<3> is automatically lifted by a pin O<2> on a bell-crank lever O, which is moved into the operative and inoperative positions respectively by pins projecting from each end of the rack-bar. The gripping-device comprises plates k<2>, K<3> between which the film may be held by means of a spring-pressed bell-crank lever K. The switch may be held in the closed position by a hook N. The negative is placed in an aperture in the top of the light-box, and fitting over it is a frame D which carries a mask.
Patent GB-1028076-A (GB)
Title: Improvements relating to devices for cutting thin slices
Inventor: STEAD FREDERICK EDEN
IPC: G01N1/06
Filed: 1964-04-02
Abstract: 1,028,076. Splitting. SOUTH LONDON ELECTRICAL EQUIPMENT CO. Ltd. March 31, 1965 [April 2, 1964], No. 13705/64. Heading B4B. A guide plate holder for use with a device for cutting thin slices, e.g. of biological tissue specimens comprises a glass sheet 1 mounted in a holder consisting of a base 2, side channels 3, a cross-piece 4 and springs 5, the base adjustably secured, by screws 13 with fine threads, to a plate 8 rotatably mounted on a pillar 9 clamped on the base of the cutting device. Relative angular movement between plate 8 and pillar 9 is limited by an arm 10 fast on the pillar and having a downturned lip engaging with play in a notch in the middle of the front edge of plate 8. Thin paper guide strips 6 are stuck to the edges of sheet 1.
Patent GB-144870-A (GB)
Title: Improvements in the manufacture of radiators for motors and the like tubular apparatus
IPC: B21D53/06
Filed: 1919-05-30
Abstract: 144,870. Tritsch, D. T., Booth, C. F., and Gillison, T. May 30, 1919. Plate apparatus.- Relates to surfaceapparatus for the transference of heat. of the t y p e comprising a number of corrugated sheet - metal plates assembled to form tubes for the passage of air with narrow spaces between for the flow of water or the like. According to the invention, the apparatus is built up of a number of pairs of plates having rounded corrugations 1 with short interspaces 2 between: the corrugations arranged in staggered relation, the convex face of the corrugations being provided with transverse channels 6, longitudinal channels 7, or both, except at the marginal portions so as to provide passages 5 for the water without the necessity of enlarging or expanding the ends of the tubes 4. Small V or like shaped projections 3 are pressed out of the interspaces 2 between the corrugations so as to interengage when the plates are assembled and prevent their relative movement. Projections 8 are also stamped' out of the corrugations or the interspaces near the edges of the plates to fill up the interstices between the rows of tubes and to retain the solder 9 when the apparatus is dipped.
Patent GB-713257-A (GB)
Title: Process for treatment of alkali soaps of unsaturated fatty acids
IPC: C11C3/00
Filed: 1951-06-11
Abstract: Unsaturated fatty acids are converted into soaps of saturated fatty acids containing fewer carbon atoms in the molecule by a modification of the Varrentrapp reaction in which the alkali metal soaps of the unsaturated acids are heated with aqueous caustic alkali at temperatures above 300 DEG  C., preferably 350-450 DEG  C., in the presence of at least 20 per cent. of water, based on the weight of fatty acid in the original soaps.  The soaps of the unsaturated fatty acids may be formed by neutralization of the acids with alkaline-reacting salts, such as sodium carbonate, in which case only one mole of caustic alkali is required theoretically for the reaction per double bond per mole of soap, but if the free fatty acids are used as starting material two moles of alkali are required theoretically per mole of an unsaturated fatty acid containing one double bond.  In either case, it is preferred to use 0.25 moles excess of caustic alkali, which may be caustic soda, caustic potash or a mixture of the two. Examples are given of the treatment of a technical olein, fish blubber fatty acids and soya oil fatty acids.
Patent GB-636044-A (GB)
Title: Improvements relating to thermionic valve amplifying circuits
IPC: H03G5/08
Filed: 1947-05-22
Abstract: 636,044. Valve amplifying circuits. SCOLES, G. J., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. May 22, 1947, No. 13794. [Class 40 (vi)] A " see-saw " amplifying circuit in which the impedance connecting the input to the anode of the valve has both resistive and reactive components is provided with means for varying the relative proportions of reactance on either side of the tapping point connected to the grid in a complementary manner to give tone control. The anode of valve V is connected to the input through a series resistor condenser combination R1, C2, R3. The signal is applied to the grid from a tapping point Y on a resistor R2 shunting the condenser C2. The bass response of the circuit is varied by adjusting the position of Y. In a modification. Fig. 3 (not shown), giving variable top response, the input is connected to the valve anode through a series condenserresistor -condenser arrangement and the sections on either side of the variable grid tapping on the resistor are shunted by resistors.
Patent GB-800609-A (GB)
Title: Preparation of alkyls of lead and aluminium
Inventor: LATHAM KENNETH GEOFFREY
IPC: C07F5/06
Filed: 1956-05-04
Abstract: Aluminium and lead alkyls are prepared by reacting aluminium or lead with free radicals produced by the action of an initiator metal on either an aliphatic per-acid containing from 2 to 4 carbon atoms, or an alkyl chloride, bromide or iodide, the initiator metal being lithium, copper, calcium, zinc, iron or chromium.  The process may be carried out at superatmospheric (up to 72 atmospheres), atmospheric or reduced pressure, at a temperature below the melting point of the metal, initiator metal or mixture of metal and initiator used, i.e. between 20 DEG  C. and 365 DEG  C.  The free radical source should be free from nitrocompounds, free halogens, sulphur and reactive sulphur compounds.  It may be used as a vapour and diluted with hydrogen, steam, nitrogen or carbon dioxide.  Mixtures of free radical sources may be used.  The metal initiator should be in finely divided or spongy form, and it may be dispersed on a catalyst support.  The aluminium or lead should be in intimate contact with the initiator metal, e.g. such as by electro-chemical and electrolytic deposition one on the other.  It is preferred to use alkyl chlorides as a free radical source and copper as initiator when preparing lead alkyls.
Patent GB-384181-A (GB)
Title: Improvements in carburettors for internal-combustion engines
IPC: F02M17/44
Filed: 1932-05-13
Abstract: 384,181. Spray carburetters. WILDI, T. and GAISER, C., 65, Z³rcherstrasse, Baden, Switzerland. May 13, 1932, No. 13831. [Class 7 (iii).] An axially arranged fuel nozzle 22 discharges downwardly into a Venturi tube 7 which is heated by contact with the engine, and transmits the heat to a casing 16 through apertures in which the main air supply is admitted. The upper end of the nozzle is surrounded by a casing 3 to which fuel is supplied through a duct 13, and air through a tube 14. Above the casing is a chamber 4 which communicates with the chamber 3 bv a tube 9 and with the induction pipe on the engine side of the throttle valve 6 through a tube 5. Small air inlets 10, 11 are provided in chamber 4 and on pipe 5. When the throttle is closed, fuel is drawn from the chamber 4, but on the throttle being opened the fuel in chamber 4 flows to the casing 3 and thence through the nozzle thus facilitating acceleration.
Patent GB-896624-A (GB)
Title: Improvements in or relating to apparatus for lifting and transporting cars and like vehicles
IPC: E04H6/18
Filed: 1959-04-23
Abstract: 896,624. Trolleys for moving vehicles. MITCHELL, F. G. April 25, 1960 [April 23, 1959], No. 13845/59. Class 78 (4).  A trolley 10 for moving cars comprises rollers 22 mounted on arms 20, 21 which are movable by power means to a position fore and aft of a wheel 23 in which position the rollers engage the tyre and lift the wheel off the ground. As described, the arms 20, 21 are pivoted to cross-heads 24 which are moved to and fro by electrically operated actuators 28. Cam-blocks 29, 30 co-operate with rollers 31 on the arms 20, 21 to move the arms between their operative and inoperative positions. The front wheels 36 of the car are turned to the straight ahead position and held there by bars 40 which carry a row of balls 41 on their tyreengaging surfaces. The bars 40 are moved outwards by rods 45 attached to one cross-head 24, these rods move rods 47 to the left, thus causing sliding- blocks 48 to be urged to the left by springs 51. The sliding blocks 48 are connected to the bars 40 by links 49, 50. When the bars 40 abut the wheels 36 the lost-motion is absorbed by the springs 51 which are compressed further. In a second embodiment one actuator supplies power for all the above movements, a system of pivoting links connecting the two cross-heads 24 so that they move in opposite directions when power is applied to one of them. Both the above embodiments may alternatively carry swinging arms arranged to lift both front and rear wheels of a vehicle. In this case one pair of arms may be adjustable to accommodate cars of different wheel bases.