baber/WOPTO huggingface dataset:
Patent GB-117468-A (GB)
Title: Improvements in and relating to Valves for Distributing Steam or other Fluid in Pumping and other Engines.
IPC: F15B13/04
Filed: 1917-04-11
Abstract: 117,468. Simpson & Co., J., and Marsland, J. April 11, 1917. Combined fluidactuated and mechanical gears.-The main distribution of the steam in steam pumps is effected by the longitudinal movement of a quadrant valve, working in a liner and. which is held to its seat by fluidpressure. The movement is effected by fluidpressure supplied to and exhausted from the ends of the valve chamber by ports r, q in the valve n. registering with auxiliary steam and exhaust ports l, m in the liner d on the oscillation of the main valve which is effected by tappet mechanism in the usual way. The supply of steam through port b to the chest holds the valve to its seat. Compression and starting ports h, i controlled by hand-operated lift valves are provided. The auxiliary exhaust ports m are closed before the valve reaches the end of its stroke to cushion the valve.
Patent GB-1038681-A (GB)
Title: Improvements in methods and apparatus for decorating cakes and like confections withwhipped material
IPC: A23G3/28
Filed: 1964-02-06
Abstract: 1,038,681. Decorating cakes and like confections. J. MACMANUS. Feb. 6, 1964 [Feb. 18, 1963], No. 5113764. Heading A2A. In an apparatus for decorating cakes and like confections whipped decorating material is made in a whipping apparatus 26 (such as that described in Specification 978,979) by introducing stable fine air bubbles into the material with a small proportion of unstable larger bubbles, the whipped material is delivered in a stream into a hopper 25 having vertical side walls 27 and its upper end communicating with the atmosphere through perforations 31 in a cover plate 29 through which the larger air bubbles are allowed to escape from the stream as it enters the hopper 25, and the remaining whipped material is pumped from the lower end of the hopper 25 under a pressure just above atmospheric pressure into a decorating head 23 from which the material is distributed through one or more outlet nozzles on to the cake or like confection below. A pump cylinder 24 has a cylinder base block 35 welded at its bottom end and, together with a sealing sleeve 36, guides a piston rod 37. On the initiation of the upstroke of the piston rod 37, a valve 38 secured to the top of the rod 37 rises relatively to a piston 41 uncovering one or more ports 40 in the piston 41, as shown in Fig. 3. When an annular shoulder 42 on the piston rod 37 engages the underside of the piston 41, the latter rises and the whipped product in the pump cylinder 24 flows through and below the piston 41. On a subsequent downstroke of the piston rod 37, the valve 38 closes and carries the piston 41 downwardly thus pumping the whipped product through a pipe 61 which includes a non-return valve 65 (Fig. 10, not shown) to the decorating head 23. The piston rod 37 is actuated by a conventional, adjustable stroke, air cylinder. The decorating head 23, shown in Fig. 1 with multiple nozzles, may be replaced by one or more hoses for manual cake decoration.
Patent GB-667477-A (GB)
Title: Improvements in electrolytic cells
IPC: C25B9/14
Filed: 1950-03-01
Abstract: 667,477. Electrolytic cells. BADISCHE ANILIN- & SODA-FABRIK. March 1, 1950 [March 7, 1949], No. 5164/50. Class 41. An electrolytic cell provided with a liquid metal electrode, for example, a mercury cathode 5, is provided on the side walls and the bottom with a lining 2 of chemically resistant, insulating material, for example, rubber, the lining being perforated to accommodate the stems of bolts 8<SP>1</SP> carrying current to the cathode 5. The inner end 8 of each bolt is of mushroom shape and seals the bottom of the cell against passage of the liquid metal. The bolt, which may be held in place by a nut 9 or by welding to the iron case 4, is provided underneath with concentric projections to engage the lining 2. The head 8 of each bolt is arranged in a depression on the cell bottom so that its upper surface is covered by the mercury cathode 5.
Patent GB-1041741-A (GB)
Title: Improvements in or relating to the formation of a copper layer on an electrically non-conducting support
IPC: C23C18/22
Filed: 1962-02-09
Abstract: Electrically non-conducting surfaces are coated with copper by (1) cleaning the surface and treating with an activating bath containing a noble metal e.g. an acid solution of PdCl2, (2) thoroughly rinsing the surface and immersing in an alkaline plating bath containing a copper salt, a complexing agent and a reducing agent, the ratio of the area to be plated to the volume of the bath being less than 250 sq. cms. per litre of bath.  A suitable bath contains Cu804 (5 g. per 1.), sodium potassium tartrate 25 g.), NaOH (7 g.), and formaldehyde (10 cc, per litre). The low concentration of copper and low ratio of plating area to bath volume, gives a bath which is stable for a long period.  In an example, a laminated paper bonded with synthetic resin is cleaned by vapour blasting with five alumina, and the roughened surface treated with a "seeding" solution of a tin or titanium salt before being treated with PdCl2 solution.  The coated sheet is thoroughly rinsed under running water, and then immersed in the copper plating bath in which it is held vertically to plate both sides.  The copper coating may be thickened by electro plating with copper.
Patent GB-196251-A (GB)
Title: Improvements in feed and other rollers for textile machinery
IPC: D01G9/06
Filed: 1923-02-22
Abstract: 196,251. Soc. P. Dubrule & Co. April 15, 1922, [Convention date]. Rollers. - A feed or other roller for textile machinery is composed of a series of centrally perforated metal discs 2 having serrated or equivalent or other peripheral edges spaced on a shaft 1 by annular spacing members 3 of smaller diameter e.g. of steel or bronze and clamped between a collar 6 and a screwed clamping-ring 7. If required, the discs or the spacing- rings or both may have tenons 5 to engage with a groove 4 in the shaft.
Patent GB-911200-A (GB)
Title: Improvements in or relating to restraint bands for graphite assemblies of nuclear reactors
IPC: G21C5/08
Filed: 1958-02-18
Abstract: 911,200. Links. ATOMIC POWER CONSTRUCTIONS Ltd., ASHLEY, J. W., and KNIGHT, L. J. Feb. 18, 1959 [Feb. 18, 1958], No. 5316/58. Class 80 (3). [Also in Groups XXV and XXXII] A resilient band for restraining the graphite structure of a nuclear reactor is formed of a number of links pivoted together, each link comprising a nest of coaxial tubes 1, 2, 3 and rods 4 . . . 13, the rods and tubes being held between pairs of end-plates 14... 20 which transmit the load successively between rods in tension and tubes in compression to give the resilient effect of a long link. As shown the nine rods 4... 12 are arranged in groups of three around the three nested tubes 1, 2, 3 and central rod 13. The tensile load is transmitted from coupling 24 as tension along central tie-rod 13 to end-plate 20, as compression in tube 1 to end-plate 14, as tension in three tie rods 6, 9, 12 (12 shown in Fig. 3) to end-plate 18, as compression in tube 2 to end-plate 15, as tension in tie rods 5, 11, 8 (8 shown in Fig. 1) to end-plate 17, as compression in tube 3 to end-plate 16, as tension in tie rods 7, 10, 4 (4 shown in Fig. 1) to end-plate 19 on coupling 21. The wall of each tube is thicker than that of the tube surrounding it so that each tube is better able to withstand corrosion than the tube surrounding it. The tubes may be of stainless steel and the rods of mild steel for temperature compensation. As shown, tube 1 is of mild steel and tubes 2, 3 of stainless steel. In the event of failure of one or more of the tubes the tensile stress is transmitted directly between the couplings 21, 24 by the central rod 13. In a modification the link comprises a single tube held between two endplates, one of which is coupled to a set of tie rods and the other of which is coupled either to a single central rod or a further set of rods. Specification 782,922 is referred to.
Patent GB-721368-A (GB)
Title: Improvements relating to fluid pressure governors
Inventor: WILSON ARCHIBALD HAMMOND
IPC: G05D16/06
Filed: 1952-02-29
Abstract: 721,368. Pressure - regulating valves. EVERED & CO., Ltd. March 2, 1953 [Feb. 29, 1952], No. 5320/52. Class 135. In a pressure-regulating valve in which the valve seat is ordinarily formed on a shallow apertured saucer-like unit 7 of springy metal, held between a fixed seating 6c in the casing 6 and the periphery of the usual valve actuating diaphragm 8, the lower annular part 7b of the unit has attached thereto a disc or washer-like member 9 of slightly pliable material which forms the valve seat proper. The seat member 9 which is pressed directly against the seating 6c by the unit 7 may be moulded from a thermoplastic material such as polyvinyl chloride and during the moulding operations is formed with projections 9b which fit corresponding apertures in the annular part 76 and are subsequently deformed by pressing to produce a rivet-like attachment. The member 9 is also moulded with a slightly protruding rib 9c which fits the aperture in the annular part 7b. The aperture 9a in the disc 9 has its edge chamfered or radiussed to co-operate with the valve head 10. Specification 451,780 is referred to.
Patent GB-1249472-A (GB)
Title: Dynamo electric machines
Inventor: STEWART CHARLES GEOFFREY
IPC: G01P3/488
Filed: 1968-02-02
Abstract: 1,249,472. Machines with permanent magnets. GIRLING Ltd. 20 Jan., 1969 [2 Feb., 1968], No. 5371/68. Heading H2A. A tachogenerator comprises a rotor 17 secured to a shaft 11, the speed of which is to be measured, said rotor carrying a bearing sleeve 23 in which is journalled a spigot 24 supporting a stator having a pin and slot connection 31, 34 with a stationary casing part 33. The rotor is recessed at 19 to receive a toothed, annular permanent magnet 20 anchored by washers 22 on bolts 20 and inside which is located a stator core surrounding a coil 28. The slater core and coil are mounted on a cup-shaped member 27 which is secured to the spigot 24 together with an arm 26 carrying the pin 31 through which extend the leads 30 to the coil. A leaf spring 35 bears on the stator to maintain a flange 25 on the spigot in contact with a thrust face on the bearing sleeve.
Patent GB-789124-A (GB)
Title: Improvements in and relating to fluid flow temperature í¡í¡rs or recorders
Inventor: CHARLES JOHN ARTHUR
IPC: G01K1/14
Filed: 1955-02-23
Abstract: 789,124. Indicating- and recording-apparatus. UNITED GAS INDUSTRIES, Ltd. Feb. 23, 1956 [Feb. 23, 1955], No. 5415/55. Class 106 (4). [Also in Groups XV and XX] In a recording thermometer a coiled bimetallic . element 24, which is exposed to a fluid stream is anchored at its outer end and coupled at its inner end to a spindle which carries a magnet 14 close to a non-magnetic diaphragm in the wall 1. A similar magnet 13 outside the wall is mounted on a spindle 11 which carries a U-shaped member 31 which supports, on knife edges, a transverse bar from which projects a capillary tube 34 having a stylus head 35 moving over a rotating recording chart 40. The bar carries counterweights 36. The inner end of the capillary tube dips into an ink reservoir 29 carried by the bridge member 28. A clock mechanism 37 rotates a spindle carrying a circular head 38 on which rests the chart 40 being retained by a sleeve 39 secured by a nut 41. A pin projects from the lower surface of the sleeve 39 through the chart into a recess provided in the head 38. The chart is supported, below the stylus, by a table 42. A guide 44 is provided for the edge of the chart. The spindle 11 may be coupled to the recorder or a pointer through multiplying gearing or rack-and-pinion mechanism to produce a linear movement. The recording chart may move linearly instead of rotating. Specification 661,102 is referred to.
Patent GB-736530-A (GB)
Title: Improvements connected with electro-servo motors and systems
IPC: G05D3/14
Filed: 1953-02-26
Abstract: 736,530. Commutator windings for dynamoelectric machines. LAURENCE, SCOTT & ELECTROMOTORS, Ltd., and LANGHAM, E. M. May 14, 1954 [Feb. 26, 1953], No. 5436/53. Class 35. The armature winding of a reversible servomotor is fed alternatively through brushes B, B<SP>1</SP> from valves V, Vl, and is provided with tappings connected to a centre point C through resistances, transformers or chokes T. For convenience, the armature is stationary while the brushes and permanent magnet field rotate in a direction depending on which brush is fed, i.e. on which of the valves V, V<SP>1</SP> is biased to conduct. As shown, the centre point C is connected to the anode supply, but it may be connected to earth if desired. If smooth operation is required, a tapping may be made to each commutator segment or the transformers T may be replaced by a star-connected winding lying in the winding slots. The transformers may be tapped to feed a squirrel cage or synchronous motor. The valves may be replaced by magnetic amplifiers.
Patent GB-103577-A (GB)
Title: Improvements in and relating to Coffin Fittings.
Inventor: LEWIS JONAH
IPC: A61G17/04
Filed: 1916-04-14
Abstract: 103,577. Lewis, J. April 14, 1916. Coffins. - The attachment plates a and bars d of handles for coffins are made of wood, the hinged members c and first members b, b<1> being formed of metal. The parts b, b<1> may have split shanks, which are opened out over wooden washers arranged inside the coffins. The wreathholders are made of wood, each comprising a peg f, which is screwed into a flat base-piece e secured to the coffin by screws &c.
Patent GB-1417032-A (GB)
Title: Cold cathode field electron emitting devices
IPC: H01J9/02
Filed: 1973-02-05
Abstract: 1417032 Cathode material and processing; cathode-ray tubes WESTINGHOUSE ELECTRIC CORP 5 Feb 1973 [11 Feb 1972] 5533/73 Heading H1D Cathode structure and preparation.-A uniform large area field emitter array of a single crystal material, Fig. 9, the projections 13 of which are crystallographically continuous with the body portion 11, and which may respond to the incidence of light, infra-red, X-rays, and electrons, and be of semi-conductor material having a lifetime greater than a microsecond, is made by forming on one surface of a wafer of electron emissive material a coating of more etch resistant material 41 in a mosaic pattern of islands; etching the wafer to remove a portion of the electron emissive material from between and beneath the islands, Fig. 8; and removing the coating forming the islands. As described, a mosaic array of silicon dioxide islands is formed on a wafer of P-type silicon by oxidizing, coating with resist, and exposing to ultra-violet, whereafter a P+ diffused layer 15 is formed on the rear surface of the wafer, to act as a contact, and reduce loss of radiation generated carriers at that surface if the device is used as a photo-cathode. Finally, the structure of Fig. 8 is produced by rotary etching, and that of Fig. 9 by removal of the silicon dioxide islands 41. Optionally, the surface, except for the emitter tip cores, may be provided with a 50 to 75 angstrom passivating coating of silicon dioxide (Figs. 10 to 13, not shown) which coating may itself be coated with a reflective layer of gold (58, Fig. 14, not shown). By initially etching out a silicon wafer from a thicker slab to leave a surrounding ring, and forming a point array as above, a self-supporting transmission-type electron multiplier may be made, incident electronsbeing directed on to its rear surface in use. Other materials referred to are metal, germanium, gallium arsenide, gallium - indium - arsenide, and indiumarsenide-phosphide, of (111) or (110) crystal orientation. Examples of etchants, and times and temperatures of treatment are given,  together with the dimensions of the resulting structures. Cathode-ray tubes.-In an image intensifier, Fig. 1, a field emission photo-cathode 12, as described above, is mounted, with cooling means 19 (otherwise undescribed) on the inner surface of input window 18, opposite an extractor electrode mesh 27, and a phosphor output screen 20 coated with an opaque aluminium layer 22. Output brightness may be varied by adjustment of the acceleration voltage between mesh 27 and layer 22. Extraction electrode 27 may be dispensed with. In the pick-up tube of Fig. 2, electrons from the photo-cathode 12, similar to that of Fig. 1, are multiplied by the electrode 33, also of similar structure, before impinging on a charge storage screen 39, the opposite face of which is scanned by the gun 36, to provide an output across resistor 38.
Patent GB-703891-A (GB)
Title: Improvements in or relating to conveyors
Inventor: THOMSON CHARLES
IPC: B65G17/02
Filed: 1952-03-03
Abstract: 703,891. Conveyers. CABLE BELT, Ltd. Feb. 16, 1953 [March 3, 1952], No. 5550/53. Class 78 (1) In a conveyer comprising an endless belt or an endless loop formed from a plurality of spaced belt sections connected by cables, and driven by one or more cable circuits extending along the whole length of the conveyer, the belt engaging the cables by means of shoes which engage downwardly with the cables and are readily separable therefrom, driving means applying power to the cable circuits are provided at a point intermediate the head and tail ends of the conveyer. As shown the belt 25, Fig. 5, is driven by two parallel cable circuits 24, 24 with which it engages by means of disengageable shoe members 65 and at a point intermediate their upper runs, each cable circuit is guided in a local circuit away from the run by pulleys 56, 55 thence rearwardly to a pulley 58 and from thence forwardly over a pulley 57 to rejoin the upper run with a small lateral gap between the departure point from and the return point to that run, the lateral offset being effected by inclination of the pulley 58, and driving power being applied to the cable from the pulley 55. The belt 25 is provided at spaced intervals with flexible steel cross straps 64, Fig. 10, shoes 65 being mounted for limited sliding movement on each projecting end of the straps. Each shoe 65 comprises a steel tube 66, two metal side plates 67, 68 and a reinforcing bar 72, the shoe being retained on the steel strap 64 by a split pin 73. A pair of rubber blocks 69 is located between the side plates 67, 68 one on each side of the tube 66 and each of which is formed on one side with two grooves 76, 77 and on the other side with a single groove 78. Initially the grooves 77 engage the cable circuits but as each strap 64 reaches the pulleys 56, 57 the cables are led away from the grooves 77 and the grooves 76 pick up the parts of the cables running over pulleys 57. The driving pulleys 55 are driven from a motor 52 through reduction gearing 53 and a differential gear 54 may'be mounted between the two driving pulleys. If desired a plurality of driving units may be inserted in the conveyer run. The pulley arrangements and means for leading the cable circuits from the belt at the head and tail portions of the conveyer and the means for tensioning the belt and cables are generally similar to those described in Specifications 641,817 and 641,854. Specification 664,947 also is referred to.
Patent GB-100315-A (GB)
Title: Improvements in or relating to Storage Batteries.
Inventor: CROWDUS WALTER AMBROSE
IPC: H01M10/12
Filed: 1916-04-15
Abstract: 100,315. Crowdus, W. A. April 22, 1915, [Convention date]. Couplings. - A terminal for an acccumulator has slots 14<b> for engagement with upstanding lugs on the accumulator plates which are wound spirally.
Patent GB-869212-A (GB)
Title: Improvements in or relating to change-speed gearing
IPC: B23D25/02
Filed: 1959-02-18
Abstract: 869,212. Change-speed control. UNGERER, F. Feb. 18, 1959 [Feb. 18, 1958], No. 5594/59. Class 80 (2). [Also in Group XXII] In " pick-off " change-speed gearing for flying shears cutting continuously running material, wherein one of two parallel trains between a motor-driven input shaft 2 and an output shaft 3, e.g. a first train including pick-off wheels 8, 9, transmits power whilst the other train, e.g. a second train including pick-off wheels 8a, 9a, is stationary for ratio change, the changeover between the two trains is effected by clutches 6, 13, 6a, 13a engaged initially frictionally and subsequently positively and disengaged in the reverse manner, the clutch control means being interlocked so that when the positive and then the friction elements of the clutches of one train are disengaged the friction and then the positive elements of the clutches of the other train are engaged. The two trains branch at a wheel 5 driven by a wheel 4 on the input shaft 2, the first train comprising the said wheel 5, clutch 6, wheel 7, pick-off wheels 8, 9, wheels 12, clutch 13 and wheels 14, 15, and the second train comprising the said wheel 5, bevels 16, 16a, wheel 5a, clutch 6a, wheel 7a, pick-off wheels 8a, 9a, wheels 12a, clutch 13a and wheels 14a, 15a and 15. The clutches 6, 13, 6a, 13a comprise members 25, respectively integral with the wheels 5, 14, 5a, and 14a, co-operating with sliding members 18 which clutch the members 25 to their respective shafts initially by friction discs 30 acted on by bell-crank levers 29, and subsequently by dogs 31, 32. To obviate idle drag thereby facilitating pick-off wheel change, the sliding members 18 engage spring-loaded brake cones 19 which have limited circumferential play. in fixed blocks 36. The clutches are actuated by an hydraulic servomotor 20 through meshing geared levers 22, 24, 22a, 24a arranged to engage clutches 6, 13 whilst disengaging clutches 6a, 13a and vice versa. The pick-off wheels are mounted on swingable supports 10, 11 manually adjusted through worm gearing. Specifications 763,221 and 763,222 are referred to.
Patent GB-285653-A (GB)
Title: Improvements relating to pulleys
IPC: F16H55/44
Filed: 1927-02-28
Abstract: 285,653. Appleby, E., and Appleby, Ltd., J. Feb. 28, 1927. Axle pulleys.-A sheet-metal pulley comprises a pair of dished metal plates spot-welded at i and formed with abutting rolled-edge flanges a to form the rim. The plates, which may be corrugated as shown have discs c spot-welded to them at their centres and are spaced by a tube e, the serrated ends of which are forced into the metal. A liner f, which fits into the tube e, has a projection g engaging a recess h in the tube and is spun over at the ends to complete the assemblage of parts.