baber/WOPTO huggingface dataset:
Patent GB-705991-A (GB)
Title: Improvements in or relating to time pieces
IPC: G04B18/02
Filed: 1952-07-05
Abstract: 705,991. Clocks and watches. ATKINSON, G. H. K., and FRANCIS, Ltd., J. D. July 5, 1952, No. 16944/52. Class 139 A timepiece mechanism having a lever escapement is characterized in that the regulator arm, which is provided with an open-ended curb slot for engagement with the outermost coil of the balance spring, comprises a one-piece metal stamping which includes an apertured central enlargement wherein are provided inwardly - directed resilient tongues adapted to grip an extension or shank of one of the bearings of the balance wheel arbor. The cut or stamped sheet metal regulator i, Figs. 2 and 3, has a central part i' and a head i<SP>5</SP> with an open ended curb slot i<SP>6</SP>. The part i' is apertured at i<SP>2</SP> and has oppositely directed resilient tongues i<SP>3</SP> which grip the extension h<SP>1</SP> of the balance staff bearing h to which the regulator is attached.
Patent GB-111173-A (GB)
Title: Improvements in Suction Nozzles for Pneumatic Apparatus for Transporting Grain and Granular Materials.
IPC: B65G53/42
Filed: 1916-11-27
Abstract: 111,173. Simon, E. D., and Simon, Ltd., H. Nov. 27, 1916. Conveyer apparatus, ejector; nozzles and combining-tubes; regulating action. - A suction nozzle for pneumatic apparatus for transporting grain &c. comprises a series of air tubes d opening into the nozzle a beyond the inlet b through which the grain enters, a series of annular cones f of gradually reducing internal diameter arranged in the nozzle between the inlet b and tubes d, a series of apertures n, and a longitudinally - adjustable sleeve g.
Patent GB-1001031-A (GB)
Title: Trough mixers
Inventor: BROWNLIE ISAAC ALAN
IPC: B01F15/00
Filed: 1963-04-30
Abstract: 1,001,031. Granulating ammonium salts. SCOTTISH AGRICULTURAL INDUSTRIES Ltd. April 20, 1964 [April 30, 1963], No. 16960/63. Heading B5A. [Also in Division B1] Granulating apparatus comprises a trough divided longitudinally at least for most of its length by a baffle 31 into sections 39, 38 fitted with shafts 32, 33 respectively, each provided with helically-arranged pins 34, 35 or blades (not shown), the shafts being counter-rotatable at a peripheral speed of at least 80 feet/min. to propel non-gaseous material in opposite direction in the two sections. At each end of the trough is provided means permitting transfer of the material from one section to the other, and means to permit charging and discharging are provided. At one end of the baffle 31 is an orifice controlled by an adjustable slide 40. A gas off-take duct may be provided and the trough, which may be of rubber, may have a heating or cooling jacket. A lid 37 is removable and product is discharged through a port 43. In the embodiment shown in Figs. 4, 6, a bed of solid ammonium phosphate is put into the trough and the shafts rotated. Phosphoric acid and ammonia are added through pipes 41, 42 on to the bed and react to form substantially dry ammonium phosphate, water originally in the acid evaporating because of the heat of reaction and escaping through the gas take-off duct. In a modification (Figs. 1-3, not shown), for agglomerating powdered single phosphate, ground ammonium sulphate and crystalline potassium chloride, the baffle extends the whole length of the trough and has an adjustable orifice at each end, and there is a port in the lid for charging.
Patent GB-187284-A (GB)
Title: Improvements in the manufacture of socks for boots, shoes and the like
IPC: A43B17/10
Filed: 1921-06-21
Abstract: 187,284. Turner, C. W. June 21, 1921. Drawings to Specification. Pulp, adding special substances to; antiseptic paper.-A material for use in making socks for boots is made from asbestos millboard having incorporated with it before rolling starch powder and an antiseptic such as boracic powder, or a deodorizer, with or without a filling material such as china clay.
Patent GB-472075-A (GB)
Title: Improvements in and relating to tubular heat transmitting bodies suitable for smoke-tube boilers
IPC: F22B37/06
Filed: 1936-06-18
Abstract: 472,075. Making heat - exchangers. VARGA, A. June 18, 1936, No. 16975. Convention date, June 19, 1935. [Class 83 (ii)] [Also in Groups XIII and XXVIII] Internally-ribbed tubes suitable for smoketube boilers are formed of two rolled plates having integral ribs and welded together at their edges 6. The plates may be outwardly curved between adjacent ribs, and the ribs slotted to permit of expansion. In a modification, the plates may be welded to connecting pieces 8, Fig. 4. The Specification as open to inspection under Sect. 91 comprises also tubes having separate ribs 2, Fig. 5 (Cancelled), welded to the plates. This subject-matter does not appear in the Specification as accepted.
Patent GB-348903-A (GB)
Title: An improved electric snap switch
IPC: H01H15/18
Filed: 1930-06-02
Abstract: 348,903. Snap-action switches. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Cutler- Hammer Manufacturing Co.; Milwaukee, Wisconsin, U.S.A.) June 2, 1930, No. 17008. [Class 38 (v).] In a pushbutton snap-action switch, the rectilinearly-moving operating member, the movable contact-member and quick-action spring are adapted for assembly together as a unit prior to being housed in the insulating casing. The operating member, Fig. 7, comprises a single moulded piece of insulating material having pushbuttons 49, 50 at the ends and a bent middle portion 51. The movable contact-member comprises a loopshaped metal stamping having a bottom portion 64 and a pair of upwardly-extending arms 66 which are bent over at the top to form a downwardlyprojecting abutment. This abutment engages one end of a dead-centre compression spring 62, the lower end of which engages a projection 61 on the operating member. A U-shaped pivot pin having arms 75, 76 is threaded between the operating member and the base of the contact-member to complete the unit, which is fitted into a central recess in the base 21, Fig. 3, so that the operating member lies in the semi-circular grooves 48 and the arms of the pivot pin are held in recesses 79, 80. Terminal plates 37, which are held by binding posts 35 have bent round portions 38 to serve as the fixed contacts co-operating with the extensions 71, 72 on the movable contact-member. The lead-in wires enter holes 23 in the ends of the casing, one wire passing without interruption through channels 24, 25. An upper cover portion of similar shape is secured to the base to hold the mechanism in position and complete the switch. The movement of the operating member is limited by projections 54 engaging the lower part 64 of the movable contact member.
Patent GB-642544-A (GB)
Title: Improvements in or relating to machines for sealing canisters or the like with adhesive tape
Inventor: HUDSON GEORGE REGINALD
IPC: B65B7/28
Filed: 1947-06-28
Abstract: 642,544. Sealing cans by adhesive tape. DU MONT, Ltd., C. S., and HUDSON, G. R. June 28, 1947, No. 17092. [Class 73] A machine for applying sealing tape around the tops of containers &c. comprises a stationary adjustable table on which the container is mounted and a rotatable member carrying the tape around the container and serving by means of a cam and stop to operate a cutter when the container is taped. The table 4 is adjustably mounted on the base 1 of the machine and a member 11 is rotatably mounted on a shaft 10 and turned by a handle 12, Fig. 2. A flat lever 13 is pivotally mounted at 48 on the member 11 and biased upwardly by means of a leaf spring 34. A tape-holder 14 is also mounted on the pivot 48, the tape passing over guide pins 18, 19 fixed on the lever 13 and in front of a pressure applying roller 17 pivoted at 16 on the lever 13. Fixed to the pivot 16 is an arm 23 which carries a knife 24 and an applying pad 26. A further arm 28 is pivoted at 27 on the arm 23 and is attached to the end of a rod 29 slidably mounted in a bracket 30 and loaded by a spring 32. The shaft 10 of the member 11 is supported in a side plate 8 fixed to the base 1 and pivoted on this plate 8 are a cam 40 and a spring pressed stop lever 45. A roller mounted on a shaft 37 on the lever 13 engages the cam 40 to operate the cutter. Fig. 2 shows the machine set ready to operate. A container such as a can is placed on the table 4 against a stop plate 51. The tape is then trapped between the can and the roller 17 held in engagement with the can by the spring 34. The handle is rotated, moving the member 11 in an anticlockwise direction in Fig. 2 and the pressure roller 17 round the can to apply the tape. Just before the member 11 has completed its cycle the roller on the shaft 37 engages the back of the cam 40 which moves the stop lever 45 into the path of a stop 44 on the member 11, and locks the cam 40 in position. Continued rotation of the member 11 therefore forces the roller down on the cam and so forces the lever 13 to pivot anticlockwise about 48, thus withdrawing the roller 17 into the position shown in Fig. 3. This brings the knife 24, guided by the rod 29, up to the tape and severs it, further rotation bringing the pad 26 up, to wipe the end of the tape into place. In this position the stop 44 engages the stop lever 45 and further rotation is prevented. To reset the machine, the handle is turned back a little, which movement causes the roller on the shaft 37 to push the tail of the cam 40 clockwise, when the roller rises under the action of the spring 34 on the lever 13. Similarly, the roller 17 is returned to its operative position by the pivoting of the lever 13. Movement of the cam 40 also allows the stop lever 45 to pivot under the action of its spring out of the way of the stop 44. A finger 22, and the irreversible guide pin 18, ensure that the tape is presented to the next can when put in position.
Patent GB-740644-A (GB)
Title: A device for housing a lead for electric irons and other electric appliances
IPC: H02G11/02
Filed: 1953-06-20
Abstract: 740,644. Self-winding drums. COUPLAND, R. E. March 18, 1954 [June 20, 1953], No. 17155/53. Class 78 (2). A device for housing the lead for an electric iron or other electric appliance, comprises a casing 1 carrying a means 26 adapted to be connected to a source of electric supply, a spring-controlled rotary drum 4 rotatably mounted within said casing and upon which the electric lead is wound, rotary contact discs 15, 16 carried by the drum and to which the respective wires 18 of the lead are electrically connected and co-acting wheels 15A, 16A which are adapted to coact with said rotary contacts and which are electrically connected to said means on the casing, whereby electric current is supplied through said means to the iron. As shown, contact wheels 15A, 16A are carried by bracket 22 biased by spring 24 to pivot about 23, and press upon said contact discs 15, 16 mounted upon rotatable insulating sleeve 13. The earthing pin 28 is connected to the end wall 2, and the connection therefrom to the earth wire of the lead is made via disc 7.
Patent GB-254109-A (GB)
Title: Improvements in and relating to amplifying horns of talking machines
IPC: G10K13/00
Filed: 1925-07-04
Abstract: 254,109. Gramophone Co., Ltd., and Buckle, H. L. T. July 4, 1925. Sound magnifying and directing appliances.-An internal gramophone horn designed to have a maximum length within the space available is formed with two semi-circular or double bends which lie substantially in planes at right angles to one another. The horn shown has straight portions a, b, a vertical bend c, a straight portion d and a horizontal bend e. Alternately the first bend may be horizontal and the second vertical.
Patent GB-620591-A (GB)
Title: Frequency modulation system
IPC: H03D3/16
Filed: 1946-06-06
Abstract: 620,591. Automatic control systems for a frequency modulator. STANDARD TELEPHONES & CABLES, Ltd. June 6,1946, No. 17266. Convention date, June 9, 1945. [Class 38 (iv)] [Also in Group XL (c)] The invention employs the crystal control of a Foster-Seeley frequency discriminator or a modified form of this circuit to affect stabilization of the centre-frequency of an F.M. transmitter. As shown, the tank circuits of an oscillator and a discriminator, L5, C2, C3 and L6, C6, respectively, the latter being of low " Q," are inductively coupled; and the oscillator is tuned by a thermionic. reactance valve V<SP>1</SP>, in parallel with its tank circuit, which is controlled by an A.F. modulating voltage at its suppressor grid 14, and an automatic D.C. bias at its control grid 12, derived from the discriminator output in a known manner across resistor R<SP>2</SP>, R<SP>3</SP>. The stabilizing crystal Cr is connected in the earth lead to the centre tap of the discriminator coil L6 and causes unbalance of the A.C. voltages across the separate halves of the double diode rectifier V3 upon the drift of the centre frequency away from the resonant frequency of the crystal, an unbalance D.C. voltage being thereby produced at x. In a further embodiment, Fig. 6 (not shown), the anode of the valve V<SP>3</SP> are connected directly to earth and to the crystal and a 90 degree phase shifting network is connected between the oscillator output and the cathodes.
Patent GB-444012-A (GB)
Title: Improvements in and relating to the production or manufacture of shirts
IPC: A41B1/00
Filed: 1934-06-11
Abstract: 444,012. Shirts. SHEPHERD, T. L., 7, Park Lane, London. June 11, 1934, No. 17268. [Class 141] Shirts are made by treating the adjoining edges of its parts with an adhesive which on drying is unaffected by water, applying the parts together and allowing them to set. Preferred adhesives are a colloidal suspension of rubber or rubber latex, or a solution of a synthetic resin, preferably a glycerol-phthalic anhydride resin. A shirt with seams A according to the invention is shown, whereby all stitching is eliminated. Buttonholes may be simply punched out of the treated material.
Patent GB-1464766-A (GB)
Title: Motor-driven pump
IPC: H02K9/22
Filed: 1974-04-19
Abstract: 1464766 Cooling dynamoelectric machines ITT INDUSTRIES Inc 19 April 1974 [19 April 1973] 17271/74 Heading H2A In a motor-driven pump, the motor is cooled by heat transfer between a number of axially extending annular elements 4 arranged coaxially on a rotor member 1 of the motor and a co-operating set of non-contacting, interleaving annular elements 5 extending from a stationary member 3, heat flowing along the arrowed paths 6 between the members 1, 3 being removed from the latter by constraining the medium pumped by the pump to flow over the member 3. The stationary member 3 may form a part of either the motor casing or the pump casing (neither illustrated), and the motor may have a heat exchange arrangement such as described above at each end of the rotor. The spaces between the elements 4, 5 may be occupied by air or by a liquid. In the submersible pump shown, the elements 4 are 1-10 mm. thick and are spaced 0À1-3 mm. from the elements 5, the elements 4, 5 being of aluminium or copper and having blackened surfaces. The elements may also contain heat pipes wherein a liquid evaporates at one end of a pipe and condenses at the other.
Patent GB-1190847-A (GB)
Title: Electric Inverting Apparatus
Inventor: WARRINGTON JAMES MORGAN
IPC: H02M7/527
Filed: 1967-04-14
Abstract: 1,190,847. Inverting; synthesizing sine waves; control of A.C. motors. ENGLISH ELECTRIC CO. Ltd. 10 April, 1968 [14 April, 1967], No. 17353/67. Headings H2F and H2J. Control signals are derived by comparing the instantaneous value of a sine wave with that of a higher frequency triangular wave and operating switching devices where the instantaneous value of one wave exceeds that of the other. The invention is applicable to control of speed of a reluctance type synchronous motor by variation of the frequency of the sine wave, referred to above, and corresponding variation of the frequency of an inverter (Fig. 1, not shown) comprising a three-phase bridge of thyristors having inverse diodes and commutating circuits comprising centre-tapped inductors, bridged thyristors and commutating capacitors. The output of the inverter is pulsewidth modulated in such a way that the effective output is proportional to the frequency. Triggering thyristor inverters.-Fig. 2 shows the generation of trigger pulses for the inverter thyristors. Trigger devices 43 are switched each time the instantaneous value of a constantfrequency triangular waveform 71, Fig. 6, from generator 41 exceeds that of a variable frequency sine wave 72 from generator 38, giving a resulting waveform 73 which is inverted at 46 to give waveform 74, the two waveforms being fed to thyristor control units 45, 47 which provide a train of thyristor firing pulses at each step. The resulting output from the inverter is shown at 75. The motor speed is reduced by reducing the frequency and amplitude of the sine wave 72 from generator 38. This has the effect of altering waveform 73 in such a way that the negative and positive half-cycles of the pulse-width modulated output become more nearly symmetrical so as to reduce the output current as the frequency is reduced. Synthesizing sine waves.-Fig. 3 shows a system suitable for use as generator 38 for providing a variable frequency three-phase sine wave from a variable frequency pulse generator 61. Pulses from 61 are fed to an 18-stage ring counter and to a frequency/voltage converter 63 which biases limiting diodes so that the outputs from the ring counter are proportional to frequency. The outputs of the ring counter are coupled via summing resistors 69 to three integrating amplifiers 66, resistors 69 being weighted so that the outputs from amplifiers 66 are substantially sinusoidal and displaced in phase by 120 degrees and at a frequency determined by a control signal 62 which determines the frequency of the pulse generator 61.
Patent GB-512178-A (GB)
Title: Improvements in appliances for seed sowing
IPC: A01C7/04
Filed: 1939-04-01
Abstract: 512,178. Distributers for seeds. COALES, J. D., and PARTRIDGE, E. April 1, 1939, No. 17387/38. [Class 6 (i)] Seeds are picked up by suction applied to channels in a star-shaped wheel, pressure being applied through the same channels at appropriate moments to expel the seeds to a coulter tube leading to the ground. The coulter tube is shaped approximately to the curved path taken by the seed while falling under gravity. As shown in the figures a star-shaped wheel I is mounted on a hollow shaft 2 rotatable on a fixed shaft 3. The wheel is provided with radial channels 4 leading from the shaft 2 to the periphery of the wheel. During the rotation of the wheel the channels communicate alternately with two ports 6, 7 or two sets of ports formed in the surface of the fixed shaft 3. The port 6 communicates with the suction side of a pump, the port 7 being in communication with a source of air under pressure. The wheel rotates in a seed container 8 and each channel picks up a single seed and expels it through a coulter tube 11. The shaft 2 is rotated from the land wheels of the machine. The end of each channel 4 is chamfered to ensure that only a single seed is retained thereon. As shown in Fig. 2 the wheel may be made in two parts A, B, the part A being integral with the shaft 2. The part B is made in two parts which are clamped to the part A by screws. The part B carrying the peripheral parts of the channels 4 can thus be removed and replaced by another similar part having channels of a different size for a different kind of seed. A number of wheels may be mounted side by side on the shaft 2.
Patent GB-798478-A (GB)
Title: Improvements in or relating to the hydrometallurgical production of cobalt and nickel
IPC: C01G53/00
Filed: 1955-06-16
Abstract: Nickel and cobalt sulphides are precipitated from liquors containing these metals together with either or both of iron and aluminium, by adjusting the liquor to a free acid content of not more than 30 grams/litre and not less than that equivalent to pH 3.5, clarifying the liquor and then treating it at 60 DEG  to 150 DEG  C. with hydrogen sulphide under pressure.  If temperatures in the range of 60 DEG  to 90 DEG  C. are employed the pH must be in the range of 1-3 and preferably 2-2.5 and a catalyst consisting of powdered iron, nickel, cobalt or mixtures of nickel and cobalt metal must be present.  The initial liquors may be obtained by the sulphuric acid leaching of ores, generally non-sulphide ores. Finely-divided solids such as the oxides or sulphides of nickel, or infusorial earth, talc or graphite may be added in amounts from 0.1 to 5 grams/litre of solution treated in order to prevent wall deposits.  According to examples: (1) liquor obtained by sulphuric acid leaching of lateritic ore, containing 14 to 15 grams/litre of free sulphuric acid was first neutralized to pH 2.5, for example with limestone, and then heated to about 100 DEG  C. in an autoclave and subjected to an overpressure of 50 p.s.i.g. whilst being agitated.  The bulk of the precipitate formed a soft plating on the wall.  If 0.1 grams of finelydivided infusorial earth is added the sulphides of nickel and cobalt settle rapidly.  (6) A similar liquor was neutralized to pH 1.5 with soda ash, heated to 65 DEG  C. and hydrogen sulphide bubbled through under a partial pressure of 25 p.s.i.g. and in the presence of fine iron particles.  The latter were obtained by reduction with hydrogen of the residual tailing solids from the sulphuric acid leaching of lateritic ores.  Nickel and cobalt sulphides were precipitated, contaminated with iron, which could be avoided by replacing the iron catalyst by cobalt or nickel.
Patent GB-1501113-A (GB)
Title: Tunnelling machines
IPC: E21D9/10
Filed: 1974-04-20
Abstract: 1501113 Automatic control of tunnelling machines ANDERSON MAVER Ltd 11 April 1975 [20 April 1974] 17420/74 Heading E1F [Also in Division G3]  Pivotal movement of the cutter-carrying boom of a tunnelling machine is regulated by a control system that involves two generator systems that can generate signals representative of the displacement of the cutter along a substantially horizontal axis and along a substantially vertical axis from a datum position, two comparison means for respectively comparing the first signals to reference horizontal and vertical signals and generating on the basis of differences between the first and the second sets of signals a horizontal and a vertical control signal, and means responsive to the control signals to pivot the boom about a vertical axis and a horizontal axis so that the cutter does cut outside a locus determined by an appropriately established relationship between the reference signals. Preferably the generators involve electrical transducers 31, 32 and the means responsive to the control signals comprise solenoids regulating valves controlling the supply of pressurised hydraulic fluid to rams acting on the boom. The signalling system can be designed for automatic stepwise traversal of a face.