baber/WOPTO huggingface dataset:
Patent GB-705774-A (GB)
Title: Rotary pump adapted for use as a pump or motor for the delivery of liquids, plastic masses and the like
IPC: F04C2/08
Filed: 1952-02-06
Abstract: 705,774. Rotary pumps and motors. HACK, E. Feb. 6, 1952 [Feb. 9, 1951], No. 3090/52. Class 110 (2) Meshing helical rotors are each built up of a number of discs a<SP>1</SP> ... a<SP>4</SP>, b<SP>1</SP> ... b<SP>s</SP> which may vary in thickness along the length of a shaft c. The shaft may be splined, each successive disc being turned by one or more notches ; the discs may be arranged in steps to vary the pitch of the thread. Fig. 4 shows a shaft g having a helical groove 2 containing a spring which presses outwards against slots in the discs.
Patent GB-755213-A (GB)
Title: Improvements in or relating to cathode structures for electron discharge devices
Inventor: COLBORNE RONALD HENRY
IPC: H01J29/48
Filed: 1953-02-04
Abstract: 755,213. Thermionic cathode constructions. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 25, 1954 [Feb. 4, 1953], No. 3112/53. Class 39 (1). Cathode support insulator 1 has a central hole in which is fastened a metal sleeve 3. The cathode is fastened at the bottom end 4 to the sleeve but is spaced from it by a small clearance of, say, 0.005 inch, the emissive end surface being at the top surface of the insulator. The arrangement minimizes effects of evaporation of conductive material on the insulator, and of thermal expansion. The outer rim of the insulator carries a sleeve 6 projecting beyond its bottom surface so that the assembly can be inserted in electrode 7, its distance from aperture 8 adjusted by shims inserted in side holes 9, and fixed by welding the projecting part of 6 to electrode 7. The end surface carrying aperture 8 may be conical as shown or flat. The emissive end surface may be corrugated as at 5 to minimize heat distortion.
Patent GB-179248-A (GB)
Title: Improvements in internal and external combustion engines
IPC: F02B75/22
Filed: 1921-01-26
Abstract: 179,248. Carter, B. C. Jan. 26, 1921. Driving-gear. - An internalcombustion or other engine or pump comprising cylinders disposed at an angle to one another and arranged in two or more planes, each cylinder hav. ing opposed pistons connected to separate parallel crank-shafts, and the crank-shafts are connected to a crank on the main shaft by a triangular or other frame or by connecting-rods. In the engine shown in Fig. 2 opposed pistons work in cylinders 44 arranged in four pairs in planes perpendicular to the main shaft axis. The pistons drive parallel shafts 37, 38, 39 formed with cranks 40, 41, which are connected to a crank of similar position and throw on the main shaft 27 by a triangular frame 31. The frame may also drive an air-compressor 47. The angles between the cylinders may be 60‹ or 45‹. The engine shown in Fig. 9 has pairs of cylinders arranged on the sides of equilateral triangles in three planes perpendicular to the crank-shaft, the cylinders of the several pairs being at a and b. b and c. and a and c respectively. The cranks at the ends of each V are connected by rods such as 54, and connecting- rods 56, 57 transmit motion to the main shaft 27. In a further modification, four crank-shafts at the corners of a square transmit motion by means of a link-plate to a central shaft. In all cases, the number of cylinders and setting of the cranks are adjusted to give impulses to the main shaft at regular intervals. The link-plate 31, Fig. 12, may be geared to the main shaft 27 by a pinion 59 rigidly fixed to the plate 31 and engaging in a toothed annulus 60 on the main shaft 27. Or the positions of the pinion and annulus may bereversed. When the invention is applied to pumps, the main shaft is driven. The Provisional Specification describes a single-cylinder engine having opposed pistons connected to cranks on separate crank-shafts which are connected to a crank on the main shaft by a triangular link-plate.
Patent GB-464225-A (GB)
Title: Improvements in power transmission devices
IPC: F16H61/02
Filed: 1936-02-03
Abstract: 464,225. Hydro-mechanical combined gear devices. LAVAUD, D. S. DE. Feb. 3, 1936, No. 3234. Convention date, Feb. 5, 1935. [Class 80 (ii)] A power transmission comprises in series a "fluid" transmitter and planetary reversing, or change-speed and reversing mechanical gearing controlled by at least one electromagnetic clutch and one like brake. Fig. 1 shows an hydraulic coupling C in series with a planetary reversing- gear R having an electromagnetic clutch 80 for solid driving and an electromagnetic brake 79 for reversed drive accompanied by a speed reduction. In Fig. 2 (not shown), a torque converter is substituted for the hydraulic coupling. An arrangement according to Fig. 3 (not shown), is derived from that of Fig. 1 by substituting a clutch using granular substances such as shot, or metallic powders, for the hydraulic coupling C. Fig. 4 shows an arrangement having a torque converter T in series with a change - speed and reversing planetary gearing P controlled by two electromagnetic clutches 26, 29 and two electromagnetic brakes 27, 28 applied in combinations of two at a time by a suitable distributer switch. This gearing is similar to that described in Specification 444,899. The reaction element 15 of the converter carries a detent pawl 7 to allow the element to overrun forwardly while preventing it from running backwardly. The turbine element 14 of the converter carries a centrifugal clutch 24 which engages the driving or pump element 1 to effect a solid drive of the converter when the speed has risen sufficiently.
Patent GB-335262-A (GB)
Title: Improvements in or relating to apparatus or devices for issuing tickets
IPC: B41L5/06
Filed: 1929-10-09
Abstract: 335,262. Alldred, J., Lythgoe, F., Cussons, G. W., and Edwardes, E. H. Oct. 9, 1929. Tickets, issuing.-Device for issuing tickets is of the type in which the tickets are written by hand on a strip drawn off from a drum and a copy is made on a strip below by duplicating cloth, the record strip being wound on a receiving reel. A roll of tickets, together with thin paper to form the record strip, is wound on the drum 8, the rotation of which is checked by the spring 9 having a brake block on the end, and is led over the platform 30 and between the rollers 23 and 24, the ticket strip being led outside the device above the tripping device 34 and the thin paper strip being led on to the drum 13 rotating with the spindle 10. A piece of carbon cloth attached to the thin rod 32 lies between the ticket strip and record strip on the platform 30 where the writing of the ticket occurs, the carbon cloth preferably being in two colours. The spindle 10 is fitted inside the short hollow spindle 14 which carries on the inside face a ratchet wheel 15, co-operating with a spring actuated pawl 16, and on the outside face a double grooved pulley 17 having a free wheel mechanism. The pulley 17 has a chain or cord 18 anchored in one groove and connected to a spring 19, and has anchored in the other groove a chain or cord 20 which is connected at its other end to a groove in one edge of a double quadrant 21 pivotally mounted on a spindle 22. One quadrant of the double quadrant 21 has a toothed edge engaging a pinion on the roller 23 which engages a pinion on the roller 24 both pinions being provided with free wheel mechanism. On the spindle 22 is a drum 25 to which one end of a spring 26 is attached, the spring being anchored at its other end to a cross rod 6a and tending to turn the double quadrant until held by a stop. Motion of the double quadrant in the other direction by means of the handle 28 to push the ticket strip out of the apparatus and to wind the record strip on the drum 13 is limited to a fixed amount, determined by the length of ticket strip to be issued, by means of the adjustable stop 29. The tickets are perforated at suitable intervals to facilitate their detachment.
Patent GB-698165-A (GB)
Title: Improvements in the production of gases containing sulphur trioxide
IPC: C01B17/765
Filed: 1952-02-08
Abstract: In a process for the production of gases containing sulphur trioxide by catalytic oxidation of roaster gases in a plurality of stages with intermediate cooling of the reaction gases by the addition of colder gas a part of the roaster gas is preheated and introduced into the first stage, and cooling is effected between the earlier stages by addition of further amounts of roaster gas, and between the later stages by addition to an increasing extent of cold oxygen-containing gases, e.g. air, the latter gases being used alone at least for the last intermediate cooling.  The roaster gas preferably has a sulphur dioxide content of more than 10 per cent, and air or oxygen may be added to initiate the catalyst reaction.  Preheating of the roaster gas may be effected by indirect heat-exchange with hot unpurified roaster gas or with hot solid roasted material within or outside the roasting apparatus, by mixing with hot gas obtained by burning sulphur, or by heat-exchange with the reaction gas between the first and second stages, or with the gas leaving the last reaction stage. The walls of the reaction vessel may be cooled.
Patent GB-111022-A (GB)
Title: Presser Mechanism for Sewing Machines.
Inventor: FAIRWEATHER WALLACE
IPC: D05B29/00
Filed: 1917-03-07
Abstract: 111,022. Fairweather, W., (Singer Manufacturing Co.). March 7, 1917. Sewing-machines; presser-bar devices. - The presser-bar of a sewing- machine which is used for sewing heavy materials is actuated by a spring lever 40 supported at the rear end by a cam-actuated plunger to relieve the pressure during the feeding movements of the work, and fulcrumed intermediate its ends in a yoke 58 which i s connected by a link to a crank on a shaft 65. The shaft is rocked by a handle 68 to raise or lower the presser-foot and is held in either position by stops 70 set near to but beyond the dead-centre positions of the crank. An apertured lug 44 on the presser-bar works on a headed bolt 45 to limit the movements of the presser.
Patent GB-253030-A (GB)
Title: Improvements in money boxes
IPC: A45C1/12
Filed: 1926-02-05
Abstract: 253,030. Bergersen, T. W. Feb. 5, 1926. Money boxes, specially designed for.-In a money box having a member 3 resting on the coins and provided with an outwardly projecting extension 4 which indicates the height of the coins, the extension 4 is arranged closely behind the coin slot 2 and normally covers it so that the slot is only uncovered sufficiently to permit the introduction of a. coin, when the member 3 is raised and insertion of coins above the member 3 is thus prevented. A background 5 carrying illustrations may be arranged behind the extension 4 to cooperate with inscriptions or decorations thereon.
Patent GB-554370-A (GB)
Title: Improvements in the metallic coating of articles
IPC: C25D5/42
Filed: 1941-11-28
Abstract: 554,370. Coating with metals. PROTECTIVE METAL FINISHES, LTD., and BERGSTEIN. G. K. Nov. 28, 1941, No. 3398/43. Divided out of 554,341. [Class 82 (ii)] [Also in Group XXXVI] Non-conductive surfaces are given a copper coating suitable for the electrodeposition thereon of metals such as nickel, chromium, or silver by providing them preferably after roughening, with a layer of conductive, e.g. graphite or copper particles either contained in or adhered to the surface by means of a varnish layer, and then depositing from an alkaline bath a copper layer of sufficient thickness to stand scratch brushing, followed by the deposition of a further layer from an alkaline bath. If the conductive particles are of a metal more electro-positive than copper, the surfaces may be given a preliminary treatment with an acid solution of a copper salt without the application of electric current. Specification 493,485, [Group XXXVI], is referred to.
Patent GB-675798-A (GB)
Title: Improvements in or relating to the production of guanidine values
IPC: D06M13/432
Filed: 1950-02-10
Abstract: Guanidine sulphate is prepared by heating urea with diammonium imidodisulphonate and/or triammonium imidodisulphonate, if desired in the presence of added ammonia.  Suitable solvents and/or diluents may be used.  The preferred temperature for the reaction is in the range 190-300 DEG  C. and it may be carried out at superatmospheric pressure.  In the examples urea is heated with different proportions of diammonium imido-disulphonate; in some cases additional ammonia is added and as a result sone triammonium imidodisulphonate is formed as an intermediate product.  The diammonium and triammonium imidodisulphonate may be prepared from ammonia and sulphur trioxide. The triammonium imido-disulphonate when heated under pressure yields guanidine sulphate.  German Specification 562,738 is referred to.
Patent GB-657368-A (GB)
Title: An improved tine for agricultural implements
IPC: A01B23/02
Filed: 1949-02-09
Abstract: 657,368. Harrow tines. PARRY, W. Feb. 9, 1949, No. 3552. [Class 6(i)] A harrow tine is T- shaped, with an upper portion 15 of channel section provided with bolt holes 16 for attachment of the tine to the harrow frame, and a stem 10 of triangular cross-section having a cutting edge 11 at the front. A longitudinal channel 13 is formed at the back of the stem which is tapered to form a point 12.
Patent GB-343300-A (GB)
Title: Improvements in or relating to rotary pumps of the gear-wheel type
IPC: F04C2/08
Filed: 1930-02-04
Abstract: 343,300. Gear-wheel pumps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Ross, A. A.; 28, Brookhouse Drive, Marblehead, Massachusetts, U.S.A.) Feb. 4, 1930, No. 3758. Convention date, Feb. 4, 1929. [Class 110 (ii).] A gear - wheel pump 10-11 for supplying lubricant to a forcefeed system is mounted on the end of a driving shaft 7 of the apparatus being lubricated in a casing 6 which is also supported by the driving shaft 7. A small clearance 9 is left between the periphery of casing 6 and the outer, rigid, pump casing 5, to allow the gear-wheels and inner casing 6 to follow the driving shaft 7 during any change of position of the latter due to load or wear. Inlet and delivery passages 13 and 14 in the casing 6 line up with inlet and delivery passages 15 and 16 in casing 5. The delivery pressure in space 9 forces casing 6 against the suction passage 15 and prevents the oil leaking back. Oil left in the pump, due to the vertical arrangement of gears, serves for priming purposes on starting up.
Patent GB-937581-A (GB)
Title: Improvements in and relating to processes and apparatus for the manufacture of beverages and the like
Inventor: EVERINGTON WILLIAM TOM
IPC: A23L2/06
Filed: 1961-02-01
Abstract: 937,581. Preparing citrus fruit beverages. J. LYONS & CO. Ltd. Feb. 1, 1962 [Feb. 1, 1961], No. 3785/61. Classes 14 (2) and 28 (2). [Also in Group I] A citrus fruit product, suitable for making a beverage, is produced by comminuting whole fruit by a cutting operation, and passing the comminuted fruit to a separating device wherein the more liquid part is separated from the more solid part by imposing a generally gradually increasing pressure upon the comminuted fruit. Enzymatic action in the more liquid part is inhibited by dilution, heat treatment or adjustment to a pH value of 2.5 or less by the addition of citric, tartaric or phosphoric acid soon after the pressure is imposed (usually within 30 minutes). The whole fruit is heated just prior to comminution. Apparatus consists of a unitary structure including an inlet 13 (Fig. 3), for whole citrus fruit, a cutter 11 operated by an electric motor 12, a receptacle 14 for the comminuted fruit, a feed-screw 15, Fig. 1, within an enclosure 16 having openings to permit liquid expressed from the comminuted fruit to pass into a collector 27, and an outlet 30 for the solid residue; the decrease in the pitch of the screw and external diameter of the enclosure towards the outlet provide that a gradually increasing pressure substantially free of pulsations is imposed on the comminuted fruit. The screw 15 is driven by a hub extension 18 mounted in a bearing 20 keyed to a driving sprocket 21. Shims 24, in conjunction with the thrust pin 17 enable the screw 15 to be located in the endwise direction relative to the fixed enclosure 16. The screw may be removed for cleaning by first releasing an end-plate 25 held by wing nuts 26, and withdrawing the screw; the hub extension 18 is slidably mounted in the end bearing so that this can be done.
Patent GB-844388-A (GB)
Title: Improvements in and relating to frames for carrying loads on the back of a person
IPC: A45F3/04
Filed: 1957-02-04
Abstract: 844,388. Body harness. KAMPMANN, H. Feb. 4, 1957 [Feb. 4, 1956], No. 3836/57. Class 141 In a harness for carrying loads on the back of the person, flexible metal struts 10, 12 covered by strips 15, 13 are temporarily curved by means of adjustable straps 16, 17 which provide a cushion between the frame and the wearer's back. The frame includes also an upper strut 11 covered by a strip 14. Shoulder straps 30, 31 are secured at their upper ends to a ring 29 on the strut 11 and at their lower ends to straps 21. fixed to a horizontal support plate 23 which is also secured to extensions 22 of the strips 13. A load is retained on the support plate by straps engaged with hooks 26 at the upper part of the frame and with buckles 25 on the straps 21 and by a strap 27 carried by the strips 13. The strap 17 and the strip 15 are connected to the strut 12 by metal loops 20, 19 (not shown) engaging the slotted ends 18 of the strut.
Patent GB-436705-A (GB)
Title: An improved method for the production of bearings
IPC: B22D19/00
Filed: 1935-02-06
Abstract: 436,705. Making bearings. LOE, DEGENHART, BARON VON, 5, Bugenhagenstrasse, Hamburg, Germany. Feb. 6, 1935, No. 3853. Convention date, Feb. 6, 1934. [Classes 83 (i), 83 (ii), and 83 (iv)] Casting composite articles.-A copper-coated bearing-shell, of iron which is not hardenable by chilling, is heated in borax to 1050-1085‹ C. and inserted in a mould which is then filled with molten copper-lead alloy and plunged into cold water. The copper coating may be 1À5-2À5 mm. thick and the iron may contain 0À3 per cent of carbon, 0À3 of silicon, and 0À6 of manganese. Two halves 10 of a shell with lugs 11 are welded at 9, leaving a gap between them and after heating &c. are placed in a conical cast-iron mould 1 with a radiallygrooved base 6 of graphite. Clamps 5 are then fitted over the lugs 11 and others 4 on the mould. The bearing metal may comprise copper with 20 to 40 per cent of lead, deoxidized with phosphor copper and is poured until one half overflows at 8. Perforating by forging.-After boring, a hard ball, i.e. of chrome-nickel-steel is forced through a number of times to compress the metal.
Patent GB-211496-A (GB)
Title: Improvements in the method of making toothed wheels, toothed racks and the like
IPC: B23F17/00
Filed: 1924-02-14
Abstract: 211,496. Kowarski, G. Feb. 15, 1923, [Convention date]. Toothed wheels; racks.-In making toothea wheels, racks, and similar gear members, parallel teeth 2 are produced by passing broad straight blanks 1, preferably hot, through a series of rolls, and the teeth are given their final shape by a drawing-operation, preferably cold, during which the work is bent to its desired curve, if required for making wheels. The blank is then cut transversely to the direction of rolling to produce segments with teeth of the required width. The segments 3, Fig. 4, are then fixed to the wheel 5 or to a straight bar by screwing or by flanges 7, 9 on the bolted wheel parts 6, 10 engaging grooves in the sides of the segments. The joints between successive segments arranged around a wheel or along a rack may lie parallel or oblique to the length of the teeth.
Patent GB-1416236-A (GB)
Title: High dc voltage generating circuits
IPC: H01M2/08
Filed: 1973-01-25
Abstract: 1416236 Cathode-ray tube circuits SONY CORP 25 Jan 1973 [27 Jan 1972] 3884/73 Heading H4T [Also in Division H2] An EHT generating circuit for TV equipment, comprises a switching transistor 11 arranged to provide intermittent current in the primary of a transformer 14, tuned to the repetition frequency of current in transistor 11 so as to produce a sine wave output which is rectified, e.g. by a voltage multiplier 16<SP>1</SP>. An inductance 18 or series resonant circuit 18, 29 is interposed between transistor 11 and the primary of transformer 14 so as to prevent damage to transistor 11 in the event of sparking across the output 17. As described, transistor 11 is driven by a square wave at line frequency, series resonant circuit 18, 29 is tuned to 40-50 kHz and parallel resonant circuit 20, 14 is tuned approximately to the line frequency, e.g. 15-20 kHz (preferably to 19 kHz). Low voltage flyback pulses are produced by transformer 34 and rectified at 27 and 28 to provide auxiliary supplies. A saturable inductor 28 is included to guard against CRT flashover. A dynamic focus is provided by adding the line frequency sine wave obtained via capacitor 30 from the primary of transformer 14 to a static focus voltage from potentiometer 31. Static convergence is obtained from potentiometer 32.
Patent GB-563261-A (GB)
Title: Improvements in or relating to wood profiling machines
IPC: B23Q35/10
Filed: 1943-03-10
Abstract: 563,261. Profiling machines. SYKES, Ltd., W., and BRIGGS, C. B. March 10, 1943, No. 3903. [Class 145 (i)] [Also in Group XXII] A machine for profiling articles of wood, such as hand guards for rifles, comprises means for carrying workpieces continuously past one or more rotating cutting tools which are mounted in slides so that they can be moved to and from the line of feed of the workpieces, the movement being effected by means of cams. The invention may be applied also to a machine for shaping non-ferrous metals or plastics. The workpieces 11, Fig. 3, may be carried through the machine by a conveyer of the kind described in Specification 563,260. The rotating cutters 16, which may be set at an angle of about 45 degrees to the vertical, are journalled in slides 17 which are movable along guides 26 towards the workpieces by cams 19 secured to rotating shafts 20. The cams operate through pivoted levers 21 which press the slides 17 inwards against the action of a spring 22. The movement of the tools inwards enables an article to be produced that tapers, has longitudinal curvature, or an undulating profile. The articles may be fluted or groovep along their sides by passing them between a pair of cutters which have vertical axes. While passing the cutters, the workpieces are held down on the carriers by spring-loaded plungers having resilient fingers mounted above the supporting rails 4. The machine may be provided also with finishing tools or sanding devices.
Patent GB-1154291-A (GB)
Title: Improvements in or relating to a Photoelectric Keyboard
IPC: H03K17/78
Filed: 1968-01-26
Abstract: 1,154,291. Photo-electric keyboard. EX-CELL-O CORP. 26 Jan., 1968 [6 Feb., 1967], No. 4178/68. Heading G4H. A photo-electric keyboard includes for each key a coded plate 13 (Fig. 2) moved when the associated key is operated to allow light from a source 10 to pass to selective light transmitting elements, e.g. light fibres, connected to a photoelectric element from which coded electrical output signals are obtained. Each key of the keyboard operates a switch 20 enabling a gate so that the output from the photo-electric element 11 may be read out.
Patent GB-184424-A (GB)
Title: Improved mooring device
IPC: B63B21/50
Filed: 1922-02-13
Abstract: 184,424. Store, J. Feb. 13, 1922. Mooring.-One or more auxiliary floats E alterr.ating with one or more auxiliary weights or anchors D are attached to an anchoring or mooring chain A to increase its elasticity against sudden strains. The ends of the chain may. be attached to the main mooring anchor B and buoy C or to two mooring weights and the auxiliary floats E arranged' to be clear of shipping in the normal position.