baber/WOPTO huggingface dataset:
Patent GB-952758-A (GB)
Title: Surfacing sheet and method and apparatus for processing same
Inventor: REES WILLIS MORRIES
IPC: B05C1/02
Filed: 1960-11-29
Abstract: 952,758. Coating surfaces; coating-apparatus. OWENS-CORNING FIBERGLAS CORPORATION. Nov. 29, 1960, No. 41026/60. Heading B2B. [Also in Division B6] A method of applying a coating to a planar surface of a body comprises the steps of advancing the body to an applicator station, delivering coating material to a support in fluid transferring relation to the surface of the body at a regulated rate, transferring coating material from the support to the surface of the body to form a discontinuous coating thereon and allowing the coating material to set on the said surface, the rate at which the coating material is delivered to the support in fluid transferring relationship to the said surface being insufficient to provide, on transfer, a continuous coating on the surface of the body, and thereby forming randomly distributed coated zones of random size and shape over the planar surface of the body. Preferably the support is a roller which rotates relative to the surface and thereby wipes coating material on to the surface. The method may be applied to the production of an acoustical tile comprising a porous body of compressed glass fibres having a surface of which not more than 93 % of the area is sealed by paint, the paint being disposed in zones of random shape and area, having a coating of non-bridging paint disposed over the whole area of the surface. As shown, paint is delivered from a tube 130 into the nip between the applying roll 62 and a paint metering roll 26 both of which are driven so as to rotate in the same direction. The coating material is applied to a substrate such as a tile passing underneath the coating roller 62. A doctor blade 156 is spring-urged against the metering roll 96 to prevent paint being carried around the periphery of that roll. The gap between the rolls 62 and the roll 96 may be varied by the adjusting nut 120. The adjustment 180 is provided to vary the vertical position of the coating roll 62. To carry out the method of the invention the metering roll is adjusted to restrict the amount of coating material delivered on to the substrate so as to coat it incompletely. In that way blotches or spots of various sizes in random arrangement are provided leaving voids or uncoated portions therebetween.
Patent GB-945639-A (GB)
Title: Improvements in circular saws
IPC: B23D61/02
Filed: 1962-11-01
Abstract: 945,639. Making saws. AD. LEIMGRUBER & CIE A.G. Nov. 1, 1962 [Nov. 6, 1961], No. 41316/62. Heading B3A. [Also in Division B5] Toothed or crown segments 3 are fixed to a base disc 1 by cementing. Each segment is also cemented to its adjacent segment and the use of an epoxy resin adhesive is preferred. The segments are seated on a rib 7 on the periphery of the disc as shown in Fig. 2; alternatively they can be so shaped as to lap or project into a groove in the disc.
Patent GB-1586791-A (GB)
Title: Di-etherified 2,5-dihydroxy-3-aminoethyl-tetrahydrofurans and their manufacture
IPC: C07D307/20
Filed: 1977-10-06
Abstract: Novel 2,5-dialkoxy-3-aminomethyltetrahydrofurans of the formula I are prepared by reacting 2,5-dialkoxy-3-formyltetrahydrofurans with ammonia or secondary amines and hydrogen in the presence of hydrogenation catalysts. The symbols in formula I have the meaning given in the patent claim. The novel compounds of the formula I are valuable intermediates for the preparation of pharmaceuticals, dyestuffs, textile aids and plant-protection agents. <IMAGE>
Patent GB-1246718-A (GB)
Title: Assembly jigs
Inventor: SCAMINACI JAMES
IPC: H01R43/033
Filed: 1969-08-20
Abstract: 1,246,718. Making electrical connections. LITTON INDUSTRIES Inc. 20 Aug., 1969 [18 Sept., 1968], No. 41625/69. Heading B3A. An assembly jig for securing a plurality of units, which may be electrical connecting devices 12 having posts 16 for co-operation with a wirewrapping machine (not shown), to a frame 41 in positions in which each of the units assumes a precise, predetermined, spatial relationship with respect to the support comprises a flat plate 26 having a master reference pin 28 corresponding to an analogous pin located in the wire-wrapping machine. The pin 28 is used to accurately position a series of paired positioning pins 32 in which one of each pair has a circular cross-section while the other has a flattened circular cross-section. The pairs of pins 32 co-operate with openings 29 and 31 in the body 14 of the units 12 so as to accurately position any of the connecting devices relative to the master reference pin 28. The frame 41 has openings 48 and 50 which receive pins 28 and 30 so as to position precisely the frame with respect to the base 26. Machine screws 46 having smaller diameters than apertures 44 are screwed into holes 20 in ears 18 of the connectors 12. Thus the positions of the connecting devices in relation to the frame 41 is determined only by the alignment pin 32 on the base element 26 after which the frame with its connecting devices may be removed from the base 26 and transferred to the wire-wrapping machine.
Patent GB-1364477-A (GB)
Title: Method of heating a product in an electro-magnetic field eg microwave field
IPC: A23L3/32
Filed: 1971-09-07
Abstract: 1364477 Microwave heating ALFA LAVAL AB 7 Sept 1971 [8 Sept 1970] 41645/71 Heading H5H [Also in Division A2] Separate units of a solid food product 26, packed in microwave transparent casings, are surrounded by a medium during their passage through a sterilizing microwave field, in order to prevent excessive surface heating above the temperature required to sterilize the centre of the product. The dielectric constant of the medium, at the heating frequency, is at least half that of the product at the said frequency. The medium may be suitably pre-heated or cooled such that after passing through the field, its temperature is the same as the final temperature of the centre of the product. Preferably the edges of the product, i.e. the surfaces parallel to the direction of application of the field 1, 2 are surrounded by the medium to a thickness of between one to three times the height of the product. The upper and lower surfaces of the product may be contacted directly by the field applying means, the medium being excluded therefrom. Sheet of plastics, e.g. polysulphone, polypropylene or polytetrafluoroethylene having low microwave absorbtion may be inserted between the applying means and the product. Alternatively or in addition a rigid or semi-rigid membrane 16 (Fig. 4) in co-operation with adjustable bellows 17 may be used and arranged to provide automatic weight adjustment so that the membrane is close but not touching the product surface. Solid bodies 24, Fig. 3 (not shown) or 25, may be included in the medium surrounding the edge so as to adjust the dielectric constant and spaced or shaped so as to produce a uniform field in that region. The medium may be such, that, at the operational frequencies, its dielectric constant decreases for increasing temperature, thus acting as a temperature servo. An example using water as the medium is given.
Patent GB-1366420-A (GB)
Title: Space adjusting device for articles on a conveyor
IPC: B65G47/29
Filed: 1972-09-07
Abstract: 1366420 Regulating the spacing of articles on endless conveyers T HAYASHI 7 Sept 1972 [7 Sept 1971] 41646/72 Heading B8A The end of a downstream conveyer belt 3 when in a raised position (shown), acts as a stop for articles arriving at the downstream end of an upstream conveyer belt 2. When the belt 3 is lowered to the level of the belt 2, articles are allowed to proceed. By periodically raising and lowering the belt 3 by the action of a cam 8, the articles are allowed to proceed on the belt 3 at a spacing corresponding to the speed of the cam 8. The stop 5 is provided when soft articles such as sweets are being conveyed.
Patent GB-1331357-A (GB)
Title: Method of producing top plates for use in ranges
IPC: H05B3/74
Filed: 1971-09-07
Abstract: 1331357 Coating crystallizable glass FUJI PHOTO FILM CO 7 Sept 1971 [9 Sept 1970] 41738/71 Heading C1M A top plate for use in an electric or gas range is produced by coating a surface of a crystallizable glass plate with a suspension comprising (a) a powder of a crystallizable glass, on low expansion glass or a ceramic having substantially the same coefficient of thermal expansion as the glass plate and (b) a binding clay, drying and heating to simultaneously bake the coating and crystallize the coated glass plate, the suspension being applied to produce a coating not more than 0À5 mm thick. The low expansion glass may be crystallized glass or quartz glass and the ceramic may be #-spodumone or petalite. When in use on a range the coated surface of the plate faces the heat source. Preferably the plate is of a crystallizable glass consisting in weight per cent of SiO 2  70À0; Al 2 O 3  19À0; ZiO 2  2À6; TiO 2  1À7; ZrO 2  2À0; Sb 2 O 3  0À5; As 2 O 3  0À5; MgO 2À0 and ZnO 1À7. A slurry is prepared from powdered glass of the same composition and sprayed on to the plate. After drying the plate is heated to 900‹ C. at a rate of 30‹ C./hour, held at that temperature for 6 hours, and finally cooled.
Patent GB-868625-A (GB)
Title: Liquid fuel pumps for internal combustion engines
Inventor: EVANS FRASER MACKIE
IPC: F02M41/14
Filed: 1958-12-24
Abstract: 868,625. Fuel injection pumps. C. A. V. Ltd. Dec. 18, 1959 [Dec. 24, 1958], No. 41765/58. Class 102(1). In a fuel injection pump comprising a rotary head 15 having at least one transverse piston 17 actuated by an eccentric 19, a rotary distributer 20 rotating with the head and, a pasage 22 communicating at one end with the cylinder bore 16 and at the other with a passage 23 which distributes fuel to the injection outlets 24, a shuttle 35 is disposed intermediate the ends of the bore 22 between stops 36. Fuel fed by a pump 12 passes to one side of the shuttle by a chamber 25, adjustable throttle 29, and passages 27 and 28 with which ports 30 communicate during rotation ; fuel is also fed to the other side of the shuttle from chamber 25 by a passage 31 with which ports 32 communicate during rotation. Fuel from the port 30 forces the shuttle to the left until the port is closed stopping further movement; the ports 32 open and fuel forces out the pistons 17 ; the ports 32 close and inward movement of the pistons 17 forces the shuttle to the right discharging fuel to one of the outlets 24 until the shuttle 35 opens spill ports 33. Injection commences at the same point on each discharge stroke. In a modification the shuttle is disposed in a transverse bore in the distribution.
Patent GB-1294201-A (GB)
Title: Improvements in and relating to the casting of deoxidized copper
Inventor: BIE EDOUARD DE
IPC: G01N27/06
Filed: 1970-09-04
Abstract: 1294201 Automatic concentration control METALLURGIE HOBOKEN-OVERPELT 4 Sept 1970 42448/70 Heading G3R The concentration of deoxidizer e.g. phosphorous in a copper billet 4 is controlled automatically by continuously measuring the conductivity of the billet 4 as it slides past an eddy current conductivity probe 9. If the conductivity deviates from a reference value set by measuring apparatus a signal is passed to regulator 15 after being temperature corrected by amplifier 29 in accordance with the temperature of the billet 4 by temperature probe 30. The regulator 15 is also fed with a signal representative of oxygen content from probe 16, one from weighing apparatus 12 representing the weight of holding furnace 3 and one from probe 8 representing casting speed. On the basis of these measurements the regulator 15 controls the apparatus 19 which delivers the deoxidizer to the molten copper in holding furnace 3 so as to alter the conductivity of the copper billet to the required value.
Patent GB-1449664-A (GB)
Title: Walking beam rolling mill
IPC: E21B19/086
Filed: 1973-09-10
Abstract: 1449664 Propulsion systems ALLIED STEEL & TRACTOR PRODUCTS Inc 10 Sept 1973 [11 Sept 1972] 42484/73 Heading B7H [Also in Division E1] A walking beam for moving a machine supported on rails 16 comprises a base 22, rigid members 72 pivotally mounted on the base for engaging the rails to prevent movement of the base along the rails, and stops 104, 106 for selectively constraining the rigid members 72 from disengagement with the rails when force is applied to the base in one direction along the rails and for selectively permitting the members to disengage when force is applied to the base in the opposite direction. The members 72 are resiliently biased and take the form of dogs which engage in slots 20 in the rails. The stops comprise elongate blocks 104, 106 set perpendicularly to one another on a rotatable shaft 108, such that one or the other, or both of the blocks can be positioned to interfere with an extension 102 of the dog and prevent the disengagement of the dog from its respective slot. A double-acting hydraulic cylinder 18 is provided between the walking beam and the machine. The cylinder is driven by a variable volume pump (128), Fig. 1 (not shown), and a control device 136 controls the volume and direction of flow of the pump. The control device is constructed to provide oscillations of the walking beam through the pump and cylinder without manual interference, and includes a lever arm 136 of sufficient mass to carry the pump into a reversed-flow mode when the cylinder reaches the end of its stroke. A member (138), Fig. 8 (not shown), can be adjusted to prevent this automatic reversal of the cylinder.
Patent GB-1218070-A (GB)
Title: Improvements in or relating to travelling wave tubes
Inventor: WILLIAMS ARFON DANIEL
IPC: H01J23/11
Filed: 1968-09-06
Abstract: 1,218,070. Travelling-wave tubes. M-O VALVE CO. Ltd. 8 Dec., 1969 [6 Sept., 1968], No. 42661/68. Heading H1D. A travelling-wave tube includes an electron gun having a cathode 9 with an emissive surface in a plane perpendicular to the beam path, and a tubular beam-forming electrode structure 10, 11 extending from behind the emissive surface to a slow-wave structure 6, the electrode structure having a uniform internal cross-section equal to that of the slow-wave structure, and being formed by at least two closely adjacent coaxial sections to which different potentials may be applied, and the rearmost section 10 of which extends to a plane forward of the emissive surface. As shown, the tube includes a helix or ring-bar slow-wave structure having end portions of coarser pitch, to form both a drift tube for the electron beam and input and output couplers with the contrawound helices 7 and 8. Alternatively, the drift tube at the gun end may be formed by a third coaxial tubular section similar to sections 10 and 11 and extending from adjacent the end of section 11 to the end of the interaction portion of the slow-wave structure. The cathode has an annular emissive surface to produce a hollow beam, but it is stated that, with the arrangement shown, a hollow beam is produced even with an emissive surface of disc form.
Patent GB-1483210-A (GB)
Title: Process for purifying water by precipitating the heavy metal ion complexes of polycarboxylates
IPC: C02F1/52
Filed: 1974-10-03
Abstract: 1483210 Purifying water DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 3 Oct 1974 [15 Nov 1973] 42891/74 Heading C1C Waste water containing heavy metal complexes of polycarboxylates, is treated to precipitate the heavy metal, by adding an aluminium salt in the proportion of 0À9 to 1À8 mols of aluminium ion to one equivalent of polycarboxylate, the anion of the Al salt not forming complexes with the metals unless they have a stability constant, expressed logarithmically, of less than 2, and then adjusting the pH with an alkali metal carbonate to 6À5-9À5. The polycarboxylate is precipitated as an Al complex and the heavy metals (e.g. Zn, Cd, Cu, Ni, Co, Fe and Cr from plating baths) as hydroxides or carbonates. Stability constant is defined as the equilibrium constant of the reaction for the formation of the complex between the Al ion and the complex-forming anion.
Patent GB-1403225-A (GB)
Title: Welding torch
IPC: B23K9/32
Filed: 1972-09-15
Abstract: 1403225 Welding by fusion MESSER GRIESHEIM GmbH 15 Sept 1972 [16 Sept 1971 7 Sept 1972] 42900/72 Heading B3R In a MIG torch, a releasable and rotatable coolant supply duct coupling is provided between a torch handle and a torch head curved along its length. In Figs. 1, 3, co-operating, flat-faced, coupling parts 17, 7 respectively disposed on a torch handle and a head have respective co-operating ducts 11, 1 for electrode wire, 14, 15 and 4, 5 for shielding gas, and 12, 13 and (2), (3) for cooling water. The ducts 14, 15 are connected to a gas supply pipe and the ducts 4, 5 may be connected together in the head. The ducts are sealed by rings 19-21. Locating pins 6 on the part 7 engage holes 16 in the part 17 and provide for 180 degrees spaced alternative head/handle locations, particularly for use with a curved head. A cap nut 18 retained on the part 7 engages a screw thread on the part 17. The handle mounts a push-button switch 10 and optionally, a welding current varying potentiometer. In Figs. 5, 7, a head 24 centeringly engages in a bore 42 of a handle 23. A central bore 80 is provided for electrode wire and shielding gas. Coolant (e.g. water) supply and return ducts 35, 36 in the handle communicate with a coolant duct 37 in the head via diametrically opposed ports 40 in the handle and groups of radial apertures 38a-38e, 39a-39e in the head, O- ring seals 43, 44 being provided. The duct 37 comprises two duct halves 37a, 37b which are connected to the gas nozzle end of the head and as shown, are separated by two webs formed by soldered-in wires (54, 55, Fig. 6, not shown). Pins 57 in the head engage arcuate grooves 58 in the handle to limit relative head/handle rotation. The head and handle are secured together by a cap nut 51 which threadingly engages the handle and acts to press a conical sleeve 46 (preferably longitudinally slit) into a conical recess of the handle and into engagement with the head. The sleeve 46 is non- rotatably held with respect to the handle by a pin 48. In Figs. 8-10 (not shown), slots or sets of radial ports (38), (39) for coolant are axially spaced in the head and communicate with annular ducts (60), (61) in the handle. In Figs. 11-14 (not shown), communication between the coolant ducts in the handle and head is via a plate 76 which is soldered to the head and is provided with arcuate slots and groups of apertures. The head, handle and cap nut are provided with insulative plastics casings. A non-preferred form of coupling may be of bayonet form.
Patent GB-888919-A (GB)
Title: Improvements in or relating to ph meters
Inventor: SLATER FRANK
IPC: G01N27/416
Filed: 1959-12-18
Abstract: 888,919. Electrolytic testing apparatus. MARCONI INSTRUMENTS Ltd. July 21, 1960 [Dec. 18, 1959], No. 43069/59. Class 37. In a pH meter including full temperature compensation (both slope and initial) and provision for switching from a wide range end zero meter to an expanded-scale, narrowrange, centre-zero meter, the scale changing means is arranged to alter the compensation to make it appropriate to the range being employed and the narrow-range is made adjustable so that its centre zero can occupy any point or one of a selected number of points in the pH scale. The potential on the glass electrode G is applied to a differential amplifier arrangement comprising valves 2, 3 and 4, the output at the anode 20 of valve 4 being dependent on the difference between the inputs on the grids 1 and 5. A further amplifier 6, with a millivoltmeter 8 from which the pH may be read, forms part of a feed-back circuit to grid 5. The ranges are selected by switches A, B included in in various parts of the circuit, contacts CS6 changing the range, contacts CS1 and CS2 determining the slope of the compensation effected by thermistor T1, and contacts CS3-CS6 determining the initial compensation by the thermistor T2. The position of the range in the pH scale is determined by variable resistors 33, 32, providing coarse and fine control respectively, and the variation drive of resistor 32 is ganged to that of a variable resistor 28 in the temperature compensation network. The resistor 30 included in the A position serves to transfer the zero from the centre scale position to the B range, and resistor 26 provides for an adjustment to suit the iso-potential point of any particular glass electrode in use. Switch S and power source 29 are provided for calibration purposes.
Patent GB-1205243-A (GB)
Title: Oil compositions
IPC: C10N40/25
Filed: 1967-09-22
Abstract: 1,205,243. Lubricants. E.I. DU PONT DE NEMOURS & CO. 22 Sept., 1967 [23 Sept., 1966], No. 43181/67. Heading C5F. Lubricants and hydraulic fluids comprise a neutral mineral oil and, as a VI improver, an oil-soluble copolymer containing 25-75 wt. per cent of ethylene units and 75-25% of units derived from at least one of (i) C 3 -C 14  terminally unsaturated straight chain monoolefins or C 9  or C 10  #-phenyl-1-alkenes; (ii) norbornene; (iii) C 5 -C 8  terminally unsaturated non - conjugated diolefins; (iv) dicyclopentadiene; and (v) 5 - methylene - 2 - norbornene, not more than one comonomer from (i) being present, the polymer having a pendant index of 4-33, an average pendant size not exceeding 10 carbon atoms, an average chain length of 2700-8800 carbon atoms and an inherent viscosity of 0À7-1À8. The composition may also contain a polyaminoalkenylsuccinimide, zinc dialkyldithiophosphate and a basic calcium sulphonate.
Patent GB-1148380-A (GB)
Title: Improvements in or relating to electromechanical delay-lines
IPC: H03H9/02
Filed: 1966-09-28
Abstract: 1,148,380. Electromechanical delay lines. SIEMENS A.G. 28 Sept., 1966 [29 Sept., 1965], No. 43208/66. Heading H3U. In a delay line in which magnetostrictive arms 2, 3 are welded to a torsion wire 1 the other ends of the arms being clamped between three elastic strips 6 serving to attenuate reflected vibrations, the strips are constructed such that their clamping coefficient increases in the direction of their length away from the wire. The strips 6 may be of cold vulcanized rubber and are cut from a moulded laminated block (8), Fig. 2 (not shown), the several laminations (7) of the block containing different amounts of a silicate filler to vary their hardness, thus enabling the strips to have their variable clamping qualities.
Patent GB-1342009-A (GB)
Title: Acetylenic derivatives of zinc
IPC: C07F7/02
Filed: 1971-09-16
Abstract: 1342009 Zinc-acetylene compounds RHONEPOULENC SA 16 Sept 1971 [16 Sept 1970] 43247/71 Heading C1A [Also in Division C3] An organic liquid contains in solution the zinc acetylene compounds of Formula (I) X-Zn- C#CH, and (II) X-Zn-C#C-Zn-X, wherein X is I, Br or Cl. The solution may contain a proportion of the material of Formula (I) that over 90% of the total zinc atoms present are present as the mono-zinc compound. Alternatively the solution may contain a proportion of the material of Formula (II) such that over 90% of the total zinc atoms are present as the di-zinc compound. The above solutions may be prepared by reacting acetylene at a temperature of 30 to 100 C. with a solution of an alkyl zinc halide R-Zn-X in an organic liquid wherein R has 1 to 4 carbon atoms, X is a halogen as defined above and the organic liquid is one in which the alkyl zinc halide may be prepared by reacting zinc and an alkyl halide. The solution containing the major amount of the mono-zinc compound is obtained by saturating the solution of the mixture first obtained with acetylene at a temperature of 0 to 30 C. and the solution containing the major amount of di-zinc compound is obtained by heating at a temperature of 70 to 150 C. the solution of mixed zinc compounds first obtained, the acetylene so produced being removed as it is formed.