baber/WOPTO huggingface dataset:
Patent GB-906672-A (GB)
Title: Electric motor control systems
IPC: H02P7/30
Filed: 1960-03-14
Abstract: 906,672. Control of D.C. motors. BROOKHIRST IGRANIC Ltd. March 14, 1960 [April 6, 1959], No. 8888/60. Class 38 (3). [Also in Group XXXV] An electric motor M is started when contacts RR1, RR3 are closed and contacts RR2, RR4 opened so that speed-setting potentiometer SS is connected to the collector electrode of transistor T1 which passes current as determined by the setting of potentiometer 34. Capacitor C1 is charged with constant current through transistors T1, T2, the voltage across the capacitor which increases as a linear function of time, being applied across the emitter and base electrodes of amplifier transistor T3. The resultant voltage developed across resistor R7 renders transistor T4 conductive whereby transistors T6, T7 are caused to conduct and control winding CW of magnetic amplifier MA1 is energized through transistor T8. As a result, armature A is supplied with current to initiate operation of the motor. A feedback voltage representing the armature voltage is developed across resistors DR1, DR2, to oppose the reference voltage applied through comparator circuit CM and power amplifier circuit PAM to control magnetic amplifier MA1. This regulates the armature voltage to a preselected value. As the reference voltage applied to terminals 42, 44 is increased, the armature voltage approaches rated value and the motor accelerates with full field excitation. Diode ZD1 acts as a constant voltage device and maintains the voltage at terminals 48, 50, constant with further increase of the voltage applied to terminals 42, 44. Consequently, the armature voltage is maintained at the rated value. Zener diode ZD2 responds at rated armature voltage to render transistor T5 conductive, the voltage drop across resistor R11 being applied to comparator circuit CM<SP>1</SP>. A field-regulating feedback voltage is developed across resistors R27, R28, for application to the circuit CM<SP>1</SP> whose output is amplified in circuit PAM<SP>1</SP> to energize signal windings S of magnetic amplifier MA2. This accelerates the motor under field-weakening control. The rate of change of field excitation is decreased by the response of diodes ZD3, ZD4, in turn as the reference voltage increases, thus affording a linear change in speed with a linear change in the magnitude of the reference voltage. To stop the motor, contacts RR1, RR3, are opened and contacts RR2, RR4 are closed, the capacitor C1 being discharged at a constant rate for any setting of potentiometer 36. In another arrangement, the speed of the motor is controlled by means of a tachometer generator, Fig. 2 (not shown). In a further embodiment, the motor is supplied from a Ward-Leonard generator, Fig. 3 (not shown). Specifications 906,673, 906,674, 906,675 and 906,676 are referred to.
Patent GB-308265-A (GB)
Title: Improvements in or relating to hot water heating systems
IPC: F24D3/10
Filed: 1929-03-19
Abstract: 308,265. Saupe, R., and Mielke, E., (trading as Saupe & Mielke), and Christians, C. March 20, 1928, [Convention date]. Heating by circulation of fluids. - In a hotwater heating-system embodying a storage tank, the supply and discharge of water to and from the tank is effected by means of the pressure due to the circulating pump. The boiler 1 supplies water through pipe 2 to the heat utilizing devices 4, and the water returns through pipe 6, and pumps 8 to the boiler. The storage tank 13 is connected between the pipe 2 and both sides of the pumps 8. The branches 15, 16 are provided with valves I, II, controlled by a thermostat 21, which also controls a valve 26 in the return pipe. When the temperature in the pipe 2 is normal, the thermostat 21 keeps the valves I, II, closed, but if the temeprature rises, valve II is opened and cold water from the lower part of the tank 13 is drawn into the system by pumps 8 and is replaced by hot water from the pipe 2. If the temperature in the pipe 2 is too low, valve I is opened, cold water is delivered by the pumps into the tank 13, and hot water is displaced into the system. At the same time, valve 26 is closed further. A bye-pass pipe 17 is provided, so that colder water may be mixed with the hot water in the pipe 2, and the temperature of water utilized may then be lower than that of the water produced and stored.
Patent GB-454096-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64C29/00
Filed: 1935-03-23
Abstract: 454,096. Flying-machines. PHILIPPIDES, S., 200, Royal Exchange, Manchester. March 23, 1935, No. 9081. [Class 4] A flying-machine is provided with lifting surfaces and air current producing means so arranged that the said currents flow without mutual interference beneath and parallel to the plane of the surfaces to produce lift without the employment of translation for that purpose. In one form, Figs. 1 and 2, a fuselage or shell 1 carries longitudinal supporting surfaces 2 which form the top of two open fronted and open sided chambers 3 having a longitudinal air shaft 4 arranged between them with air inlets at front and rear. Shell 1 carries airscrews 7 the axis of which are adjustable. Air shaft 4 has pairs of lateral outlets each of which contains a fan 8 which may be of variable pitch. The fans are arranged to create outwardly divergent currents of air across and parallel to the undersides of surfaces 2. Adjustable vanes 6 are provided in chamber 3 whereby the out flowing air may be caused to escape at any desired angle. The action of the fans is stated to enable the machine to hover; whilst with the fans inoperative the machine may be propelled forwardly and derive support from the body and fixed surfaces. Small external wings may be fitted in addition to the aeroplane type control surfaces shown. In the event of failure of the fan driving means, use may be made of compressed air reservoirs to provide the air blasts. According to a modification a fuselage may have thick hollow wings disposed parallel thereto and either above, below or alongside, power driven fans producing blasts of air through these wings.
Patent GB-779984-A (GB)
Title: Improvements in communication system switching networks
IPC: H04Q3/52
Filed: 1956-03-23
Abstract: 779,984. Automatic exchange systems. WESTERN ELECTRIC CO., Inc. March 23, 1956 [March 25, 1955], No. 9131/56. Class 40 (4). In a communication switching network comprising a plurality of gas tubes defining a plurality of paths through the network certain of the tubes are struck by the application of a D.C. marking and the tubes are maintained in an ionized condition by an alternating voltage. In such a system where the marking has to be applied through several switching stages the " fan-out " current (i.e. current through a progressively increasing number of parallel tubes) would normally be so large that the resulting drop in voltage across a lock-out resistance in the source of marking voltage may be such as to prevent the sustaining of the discharges. The above method minimizes this difficulty by permitting the use of much lower D.C. currents through the tubes. As shown, Figs. 1, 2, alternate sets of nodes (e.g. 40, 41; 42, 43) are individually connected to means for providing both a D.C. starting voltage (MARK) and an A.C. sustaining voltage 51. When a first stage tube such as 20 breaks down due to the application of marking voltage from the line selector and to starting voltage over terminal 60, the resulting change of potential at the node 40 causes a pulse to be applied over condenser 52 to fire the tube 50. This connects the A.C. source 51 over condensers 52, 48 to the tube 20 the return path for the A.C. being over the condensers 19 or 70 when a second stage tube 25 is subsequently fired. The frequency of the oscillation must be such that rate of repetition of the discharges so caused is greater than the rate of de-ionization of the gas and might be of the order of 50 kc. In another embodiment, A.C. may be applied to all nodes, different frequencies or phases being used for adjacent nodes. In a further embodiment the A.C. is applied by a relay operated when a tube such as 20 (Fig. 1) breaks down. In a further modification each node is provided with an individual triode oscillator, whose anode potential is obtained via a tube such as 20 (Fig. 1) when the latter breaks down. Specifications 686,427 and 704,108 are referred to.
Patent GB-564539-A (GB)
Title: Improvements in apparatus for forming and filling capsules
IPC: A61J3/07
Filed: 1942-07-02
Abstract: 564,539. Medical and like capsules. SCHERER, R. P. July 2, 1942, No. 9154. [Class 81 (i)] In capsule-forming and filling apparatus of the kind comprising a pair of die members 10 having capsule-forming cavities 20 and co-operating with a filling head for introducing filling material into the capsules, elevated portions 21, outstanding from the surface of the die members, are provided between the cavities, these elevated portions being of such size and so spaced that the sheet material from which the capsules are being formed is prevented from sagging into the spaces between the rim 26 of the die cavities. Specifications 395,546, 564,538, 564,540 and 564,541 are referred to.
Patent GB-366335-A (GB)
Title: A ball throwing, striking and catching device for playing games
IPC: A63B59/02
Filed: 1931-03-26
Abstract: 366,335. Ball games. WINZER, C. B., 63, Sudbrooke Road, Balham, London. March 26, 1931, No. 9259. [Class 132 (ii).] A ball throwing, catching and striking appliance for games, comprises a tubular prism 1 (preferably fourcornered but which may be of any polygonal section) having a suitable handle 3, a ball 2 being ejected from the tube by a suitable movement thereof, allowed to bounce and then caught on a face of the tube whence it may again be thrown.
Patent GB-779196-A (GB)
Title: Improvements in or relating to apparatus for filling containers with liquids
IPC: B67C3/26
Filed: 1954-03-30
Abstract: 779,196. Bottling. CLAYTON, Ltd., G. S. and FARRAR, L. R. March 18, 1955 [March 30, 1954], No. 9263/54. Class 125(2). A head for filling containers with liquid from a reservoir D under counterpressure comprises coaxial gas and liquid supply tubes A, B slidable vertically in a gland housing C as a unit and carrying valve members E, F co-operating with seats I, J, each valve member comprising two inverted cups the space between the bottoms of which communicates with the respective tube through an aperture M or N. The tubes and valve members are urged downwardly by a spring W. The valve seats are carried by a plate K and a bobbin P carried on a lower plate L, plates K, L being slidably mounted on vertical rods R. Plate K is urged upwardly by compression springs T acting between it and stops S<SP>1</SP> on the rods and plate L is urged upwardly by tension springs U joining the two plates. On raising a container, it pushes up the tubes and springs U, T urge the seats upwards, When plate K meets a fixed stop S on rods R, further raising of the container opens gas valve E and when plate L meets stops S<SP>1</SP>, further raising of the container opens liquid valve F. Valve F will, however, not open until the gas pressures in the reservoir and the container are equal because, until this occurs, the liquid pressure will hold the bobbin P against member F irrespective of the position of plate L. A snift aperture a<SP>1</SP> is provided in the liquid tube B.
Patent GB-498963-A (GB)
Title: Device for the protection of the stylus of sound pick-ups
IPC: G11B3/08
Filed: 1938-03-25
Abstract: 498,963. Gramophones. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. March 25, 1938, No. 9284. Convention date, March 25, 1937. [Class 40 (ii)] Relates to pick-ups and sound-boxes having means for protecting the stylus if the pick-up is dropped on a record or other surface, such means consisting of a member normally projecting below the point of the stylus and adapted, when the pick-up is placed on a, record for playing, to be rotated so as to lower the stylus gently. According to the invention, the protecting device consists of a rotatable disc or roller 5, pivoted so that it normally projects below the pick-up casing. The disc may, as shown, be pivoted at its centre 6 and be partially flattened at 7, a spring 8 so acting upon the disc that the circular part normally extends beyond the point of the stylus 3. When the pick-up is placed on a rotating record 4, the latter turns the disc 5 sufficiently to lower the stylus into engagement. A modification is described, Fig. 3 (not shown) in which the protective device consists of an eccentrically pivoted circular disc, weighted near its periphery.
Patent GB-1035332-A (GB)
Title: Mowing machines
IPC: A01D34/63
Filed: 1962-03-12
Abstract: 1,035,332. Rotary-scythe mowers. R. C. ELLIS. May 3, 1963 [March 12, 1962], No. 9391/62. Heading A1F. A rotary-scythe mower comprises a wheeled frame carrying a motor 11 which drives the vertical cutter-shaft 15 through a belt-drive 18 of which the driving pulley 13 is vertical and the driven pulley 17 horizontal, the belt passing around a pair of idlers 19 so arranged that its initial run is vertical and its subsequent run is horizontal. The frame is in three parts, the first being rectangular and composed of bars 2 which carry a platform supporting the vertical bearing 16 of the cutter-shaft. The rear frame-part A consists of legs 6, 9 supporting an upper platform 10 on which the motor 11 is bolted and which carries handlebars 22. The frame-part A is slidably adjustable along the bars 2 by means of screw-threaded members 8. The detachable front frame-part C comprises wheels 40 journalled in cheek-plates 33. Similar cheek-plates 26 depend from the framepart A and carry rear wheels 44. The wheels can be mounted either inside or outside the cheek-plates, as desired, and are vertically adjustable in slots therein. Guards 45 hang down on each side of the cutter 14.
Patent GB-330990-A (GB)
Title: Improvements in compression ignition engines
IPC: F02B19/14
Filed: 1929-03-23
Abstract: 330,990. Darby, M. O., and Sidney, A. A. March 23, 1929. Cylinders receiving liquid fuel - The combustion chamber of a compressionignition engine has a concentric truncated conical extension E<6> of the combustion chamber, an auxiliary combustion chamber C being provided within the extension, into which chamber the fuel is directly injected through a nozzle G. The auxiliary chamber C is provided with openings D communic,ating with the extension E<6>, a deflecting portion A of the chamber being arranged directly opposite the nozzle and in a position where it is subjected to the maximum heat so that the fuel impinging on the deflector may be vaporized or partial combustion may be effected. Alternative forms and constructions of the auxiliary chamber are described; it may be formed by a flat perforated plate which is secured across the upper portion of the cylinder extension, the centre of the plate being unperforated to provide a deflector ; or a flat deflecting-plate may be held in alignment with the injection nozzle by means of a plurality of radial heat-conducting arms formed integral with the deflector, these arms being bolted or otherwise secured to the wall of the extension E<6>. A plurality of injector nozzles with deflecting and vaporizing plates may be employed in each combustion chamber.
Patent GB-1212254-A (GB)
Title: Formaldehyde treated urea-acetaldehyde polycondensate
IPC: C05C9/00
Filed: 1968-02-27
Abstract: 1,212,254. Urea-aldehyde condensate. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 27 Feb., 1968 [2 March, 1967], No. 9457/68. Heading C2C. [Also in Divisions C1 and C3] A urea-acetaldehyde polycondensate, of urea: acetaldehyde ratio 1: 0À 6-2À0 and prepared at a pH of 2À7 to 8À0, is modified by reaction with 2-50% of its weight of formaldehyde at 0-150‹ C. and pH 2À5-10. The formaldehyde may be in the form of solution, vapour, metaformaldehyde or paraformaldehyde. The products are suitable as fertilizers alone, or mixed with other fertilizers. In examples, ureaacetaldehyde polycondensate is prepared and treated with formalin or gaseous formaldehyde or paraformaldehyde.
Patent GB-673636-A (GB)
Title: Improvements in or relating to a toy gun
IPC: A63H5/04
Filed: 1948-04-05
Abstract: 673,636. Toy guns. LANGSON MANUFACTURING CO. April 5, 1948, No. 9461/48. Class 132 (iii). In a toy gun of the piston-operated paper-bursting type as described, for example, in Specification 481,162, a guideway G, which is integral with the gun housing 10 and extends lengthwise of the latter above the piston rod 22, is provided for the expended portion of the paper strip P which is fed rearwardly therethrough by a resilient pawl 72 mounted on a link 38 of the trigger mechanism. One end of the link 38 is pivotally connected at 40 to the trigger 36 and, normally, a pin 46 at the other end of the yoke engages a recess 48 in the lower edge of the rod 22 under the action of a spring 42 associated with said pivot 40; the link 38 also mounts, by a pivot 62, a link 60 which is connected at one end to a pair of arms 52, the latter extending between guide lugs on the muzzle plate 28 and terminating in a clamping ring 50 for sealing the paper against the mouth of the muzzle grommet 30, and is formed at its other end with a cam 64. The arrangement is such that, as the trigger 36 is cocked, the link 38 retracts the piston 20 against the action of a spring 32, the pawl 72 simultaneously pulls the paper strip rearwardly a step, and, towards the end of the stroke of the piston, the clamping ring 50 is pressed against the grommet 30, the cam 64 finally engaging a rivet 11 in the housing 10 to cause the link 38 to pivot and withdraw its pin 46 from the recess 48 and permit release of the piston 20; during the return stroke of the trigger the pin 46 rides along the lower edge of the rod 22 and keeps the pawl 72 away from the paper until the trigger is fully restored and the pin 46 and recess 48 re-engage. A tube 70 extends forwardly from the ring 50 and functions to intensify the noise produced by the bursting paper.
Patent GB-624907-A (GB)
Title: Improvements in grip, clip, or clamp devices
IPC: B61B12/12
Filed: 1947-04-10
Abstract: 624,907. Rope grips. WHITEHOUSE, J. W., and WILD & CO., Ltd., A. G. April 10, 1947, No. 9492. [Class 78 (ii)] A clamping device for coupling loads to haulage members has a pair of relatively movable clamping elements 2, 3 for the rope which are urged to grip the rope by the reaction of the coupled load to the pull of the haulage member and means whereby the clamping element 2 is held stationary while the clamping element 3 is moved to exert said grip on the rope between the two clamps and means whereby the clamp 2 is adapted to be moved away from its stationary position to allow the haulage member to be free of the grip and to permit the member to be moved from or inserted there between. As shown in Fig. 1, the hinged clamp 2 and floating clamp 3 are supported on a bracket 1. The load is applied to a haulage link 5, connected to a bell-crank lever 20 pivoted to the main frame 1 at 21. The lever has an upper part 22 which presses on a plate 16 mounted on the upper clamp 3 and bolted to the main frame by bolts passing through a slot 17 in the plate 16 so that the part 16 can be pressed downwards with the clamp 3 to grip the rope. The clamp 2 is connected to a bracket 13 hinged on the main frame by a pivot pin 9. A handle 4 for permitting movement of the lower clamp 2 to allow removal or admission of the rope between the clamps is pivoted to the bracket 13 which is kept upright by a head 29 on the lever 4 and cam 28 on the frame 1. When the handle is raised the head disengages from the cam and the bracket swings about the hinge 9, moving the clamp 2. The lever 20 carries a lug 23 in which is a set screw 24 pressing on the frame 1, operation of the screw causes the lever 20 to pivot and so causes the rope to be gripped. The device automatically releases the grip on meeting an obstruction or can be released manually or automatically by the handle.
Patent GB-1031666-A (GB)
Title: Underground shelters
IPC: A47C31/08
Filed: 1963-03-11
Abstract: 1,031,666. Underground shelters. G. LUDING. March 11, 1963 [Dec. 14, 1962], No. 9537/63. Heading E1A. An underground shelter consists of a plurality of cylindrical or oval sections 8 which are interconnected by bolted flange connections 7, 9 and therein connected to end sections 2, 3 having offset apertures 5.
Patent GB-286487-A (GB)
Title: Improvements relating to stentering machines
IPC: B65H23/028
Filed: 1927-04-07
Abstract: 286,487. Mather, R. C., and Mather & Platt, Ltd. April 7, 1927. Tentering.-In a machine having a constant and a variable speed chain the wheel a of the latter is driven through epicyclic gearing j, g, p, the adjustable element b carrying the wheels q being itself driven in one or other direction to increase or reduce the speed of the chain by other epicyclic gearing t, u, v, w, x, y, the elements x, y of which are connected to friction drums d, c, the brakes 3, 2 on which are controlled electrically or by hand. The planet wheel carrier o is loosely mounted on the shaft s carrying the sunwheel t and worm r in gear with the element b and is driven by a chain and gearing n, k from the shaft i. Specifications 15488/08 and 20408/08 are referred to.
Patent GB-695057-A (GB)
Title: Pressure roller arrangement for textile speed frames and spinning machines
IPC: D01H5/74
Filed: 1951-04-25
Abstract: 695,057. Textile drawing rollers. CALZONE, F. April 25,1951. No. 9641/51. Class 42 (ii). [Also in Groups IX and XXXIV] A pressure roller for a spinning or like machine comprises an inner sleeve 5 non-rotatable about the roller shaft 1 but oscillatable on a pivot shaft 3 mounted in the shaft 1 with its axis perpendicular to the roller shaft axis and an outer sleeve 8 rotatably mounted on two rows of balls 7 interposed between the sleeves 3, 5. The pivot shaft 3 oscillates in a bush 4 fitted into a hole in the roller shaft 1 which is provided with a central guide pin 2. The balls 7 are retained by washers 9 and split rings 11. Rubber covers may be attached to the outer sleeve 8.
Patent GB-431804-A (GB)
Title: Improvements in and relating to the manufacture of cereal beverage products
IPC: A23F5/44
Filed: 1934-03-28
Abstract: A method of preparing cereals for ready extraction consists in subjecting the roasted cereal tissues mixed with saccharine material to mechanical pressure for rupturing the cells without completely disintegrating them.  The product is thereby converted into the form of firm individual flakes of such uniform thinness as to render the soluble ingredients fairly equally accessible to an extracting solvent.  Thus, roasted wheat, rye, corn, &c., may be mixed with molasses and passed between hot rollers.  The coarsely ground roasted particles may be tempered by a water spray or by tumbling them into a humid container, before hot-rolling, to render the vegetable tissues pliable.  The flakes are about 0,001 inches thick.ALSO:A method of preparing cereals for ready extraction consists in mixing the roasted cereal tissues with saccharine material and subjecting the mass to mechanical pressure to rupture the cells without wholly disintegrating them.  The product is firm individual flakes of such uniform thinness as to render the soluble ingredients fairly equally accessible to an extracting solvent.  Thus, roasted wheat, rye, corn, &c. may be mixed with molasses and passed between hot rollers.  The coarsely ground roasted particles may be tempered by moisture before hot rolling. Thus flakes are about 0,001 inches thick.
Patent GB-801496-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: RICHARDSON PHILIP
IPC: H02K3/24
Filed: 1956-03-28
Abstract: 801,496. Cooling conductors of dynamoelectric machines. PARSONS CO., Ltd., C. A. Feb. 27, 1957 [March 28, 1956], No. 9714/56. Class 35. Spacers between two stacks of slot conductors for providing cooling passages are in the form of intersecting members a disposed in diagonal form with respect to the conductors for which they form continuous supports and insulation may be omitted from the conductors on the sides contacting the spacers.