baber/WOPTO huggingface dataset:
Patent GB-1107478-A (GB)
Title: Improvements in or relating to the production of unsaturated aliphatic acids
Inventor: GASSON EDWARD JAMES
IPC: C07C57/055
Filed: 1965-11-10
Abstract: Acrylic or methacrylic acids are prepared by reacting acrolein or methacrolein at elevated temperature in the vapour phase with molecular oxygen over an oxide composition containing antimony, molybdenum, vanadium and iron as catalyst.  The composition is prepared by heating components excluding molybdenum in a molecular oxygen containing gas at between 700 DEG  and 900 DEG  C., adding the molybdenum and heating the resultant composition in a molecular oxygen-containing gas at between 500 DEG  and 900 DEG  C.  The molybdenum may be added as oxide or as ammonium molybdate or molybdic acid. Additional metals such as tin, nickel, cobalt, chromium, manganese or titanium may also be present and the composition may be upon supports such as alumina, pumice, silica, or titania.ALSO:Catalyst compositions for the oxidation of acrolein a methacrolein to acrylic or methacrylic acids, comprise antimony, molybdenum, vanadium and iron and are prepared by forming a primary composition containing all the components except molybdenum, heating the primary composition in a molecular oxygen containing gas at a temperature between 700 and 900 DEG C., adding the molybdenum and heating the resulting composition in a molecular oxygen containing gas at between 500 and 900 DEG C.  The molybdenum may be added in the form of an oxide or heat decomposable compound such as ammonium molybdate a molybdic acid.  Preferred atomic ratios are antimony to vanadium, 2:1 to 5:1; antimony to molybdenum, 1:1 to 1:5; and antimony to iron 2:1 to 16:1 and additional metal components are tin, nickel, cobalt, chromium, manganese or titanium.  Supports of the catalysts may be alumina, pumice, silica or titania.
Patent GB-1326389-A (GB)
Title: Process for inscribed metal images
IPC: H05K3/18
Filed: 1970-08-28
Abstract: 1326389 Printing plates ITEK CORP 28 Aug 1970 [12 Jan 1970] 41625/70 Heading B6C A process of producing a metal image having varying tones and shadows on a substrate comprises the steps of (a) inscribing on a substrate a continuous tone image having such varying tones and shadows said image comprising nucleating imaging material; and (b) contacting the inscribed substrate with metal imageforming material to form a continuous tone metal image on the inscribed areas. The substrate may be plastic or metal, e.g. silver or copper, the image-forming material may comprise a metal-plating bath, a metal ion-containing solution or an electroless plating bath and the nucleating material may comprise carbon or printing ink and be conductive. The electroless bath may comprise cupric anionic complexes.
Patent GB-1242061-A (GB)
Title: Process and apparatus for impregnating timber
IPC: B27K3/10
Filed: 1967-09-12
Abstract: 1,242,061. Impregnation of timber. HICKSON'S TIMBER IMPREGNATION CO. (G.B.) Ltd. 4 Sept., 1968 [12 Sept., l967], No. 41643/67. Heading DIP. Timber is placed in a chamber connected to one or more reservoirs which contain a given quantity of liquid available for impregnation of the timber and to which unabsorbed desorbed liquid may be returned, the chamber is partially evacuated, the timber is covered by the liquid, the pressure in the chamber is increased to cause a greater degree of impregnation than required, unabsorbed liquid is removed from around the timber, and the pressure in the chamber is reduced to desorb the unrequired excess of absorbed liquid from the timber, the quantity of absorbed liquid, after (a) the increase in pressure and (b) the subsequent reduction in pressure, being measured by observing a weight or volume change in the liquid available for impregnation. Fig. 2 shows one embodiment of apparatus at the beginning of operation. More than sufficient liquid to fill the space around timber T in a partially evacuated chamber 1 is supplied from a full reservoir 2, liquid then being supplied under an increased pressure from an overflow and measuring reservoir 3 (Fig. 5). Unabsorbed liquid is returned to fill reservoir 2 and overflow to reservoir 3, the drop in the level of liquid in reservoir 3 indicating the total quantity of liquid absorbed (Fig. 6). The chamber is again partially evacuated and the excess absorbed liquid recovered from the timber is returned to reservoir 2, causing an overflow to reservoir 3, the rise in the level of liquid in reservoir 3 indicating the excess quantity of liquid absorbed (Fig. 7).
Patent GB-1357899-A (GB)
Title: Shoe upper conforming machines
IPC: A43D13/00
Filed: 1970-08-29
Abstract: 1357899 Boots &c BRITISH UNITED SHOE MACHINERY CO Ltd 31 Aug 1971 [29 Aug 1970] 41878/70 Heading A3B A forepart lasting machine includes grippers which initially grip the lasting margin under relatively light pressure, so that, on relative movement between the grippers and the last, the lasting margin slips through the jaws until detecting means detect when a predetermined width of lasting margin remains within the jaws and cause the grippers to exert firm gripping pressure to tension the upper over the last. The grippers are constructed as described in Specification 1,010,149 and include upper jaws 14 and lower jaws 16 which are closed by piston and cylinder devices (not shown). A headed pin 20 is slidable in a bore 18 in the lower jaw 16 and is urged inwardly by a leaf spring 22. When the jaws 14, 16 close under light pressure the pin 20 is forced outwardly by contact with the lasting margin, causing the spring 22 to depress the plunger 26 of a microswitch 28. On relative movement between the gripper and the last the lasting margin slips through the jaws 14, 16 until it clears the pin 20, thus allowing the pin 20 to enter recess 32 in the upper jaw 14 under the action of spring 22. Movement of spring 22 releases the plunger 26 of microswitch 28 which actuates a valve to by-pass a pressure regulator which controls the closing of the jaws 14, 16. The jaws then exert full gripping pressure to tension the upper over the last. If the upper is cut with a uniform lasting margin this arrangement automaticaly positions the upper correctly on the last. The grippers may be incorporated in a lasting machine having a fixed last support and a platform carrying the grippers which is lowered to tension the upper, or in a machine having fixed grippers and a last support which is raised to tension the upper.
Patent GB-1387189-A (GB)
Title: Method and apparatus for cleaning heated surfaces
IPC: F23J3/00
Filed: 1972-09-08
Abstract: 1387189 Liquid jet cleaning of heated surfaces DIAMOND POWER SPECIALTY CORP 8 Sept 1972 [21 Oct 1971] 41900/72 Heading F2N When dislodging deposits from heated surfaces by projecting a liquid jet against the deposits, three factors-the speed of the jet, the diameter of the jet and the rate of travel of the point where the jet strikes the deposits-are so chosen that the deposits are dislodged but, at the same time, the surfaces are not chilled by more than a predetermined amount. Thermal shocks which may damage the surfaces, e.g. water tube boilers, are thus avoided. The three factors may be chosen such that, although the temperature in the region of the surfaces is well in excess of the boiling point of the liquid (which may be water), the liquid will nevertheless strike the surface in the form of droplets and the droplets will tend to bounce off the surfaces without either appreciable wetting of or boiling in contact with the surfaces. The angle between the jet and the surface may be 20 degrees. Two such jets may issue from nozzles-carried by a rotating lance whose longitudinal position is also shifted and whose longitudinal axis is perpendicular to the surface. The jets then strike the surface along spiral paths. The rotational and translational speeds of the lance may be adjusted so that the rate of travel of the jet along this spiral path is constant. Means for continuously varying the rotational speed of the lance over a certain speed range may be provided.
Patent GB-1247872-A (GB)
Title: Ammunition rounds and cartridge cases for open chamber breech mechanism
Inventor: DARDICK DAVID
IPC: F42B5/045
Filed: 1968-09-03
Abstract: 1,247,872. Cartridges. TRW Inc. 3 Sept., 1968 [1 Sept., 1967], No. 41904/68. Heading F3A. A cartridge for use in weapons; nail, stud or stake drivers; slaughter guns; cable splicers; oil well perforators; and open chamber solid or liquid propellant pulse engines for space ship attitude control; comprises a cartridge case body 12 of yieldable, non-combustible material, e.g. synthetic plastics, having as cross-section an equilateral curvilinear triangle with convex sides, and side openings 14 between the longitudinal apex edges 44. The body is filled with a solid propellant which fills the side openings and is flush with the outer surfaces of the case, or with a loose grain propellant which is retained by a sheet of propellant. An end wall of the case is provided with a primer 16, Fig. 6. When the cartridge is intended for use in weapons, the other end wall is formed with an opening 50 in which the nose of a bullet 18 is positioned. A plastics obturating sleeve 52, Fig. 6, surrounds the bullet and has its forward end secured in the opening 50.
Patent GB-1248784-A (GB)
Title: Hypervelocity gun
Inventor: DARDICK DAVID
IPC: F41A9/37
Filed: 1968-09-03
Abstract: 1,248,784. Hypervelocity guns; cartridges. TRW Inc. 3 Sept., 1968 [31 Aug., 1967], No. 41911/68. Headings F3A and F3C. A hypervelocity gun for firing primary ammunition rounds 32 each containing a propellant 38 and a piston 36 and secondary ammunition rounds 40 each containing only a projectile, comprises a barrel 12 having a bore 14 and breech means, e.g. two breech mechanisms 16, 18, for transporting the primary rounds 32 in succession to a primary firing position at the breech end of the barrel 12 and the secondary ammunition rounds 40 in succession to a secondary firing position forwardly of the breech end of the barrel, the rounds 32, 40 in their respective firing positions being co-axial with the bore of the barrel. A pressurizing means, e.g. a pressure vessel 68, is provided for introducing gas under pressure into the bore 14 between the firing positions. When the gun is loaded the projectile 44 of the secondary ammunition round is yieldably restrained by a sleeve 46 which abuts the barrel at the forward end of the secondary breech mechanism 18 so that, on firing of the primary ammunition round 32 by an electrical firing means 50, the gas introduced between the firing positions is further compressed by passage of the piston 36 through the bore of the barrel until the projectile is squeezed through the bore of the sleeve 46 to be urged outwardly of the barrel, the piston being then retained in the secondary firing position. Although the weapon may have any kind of primary and secondary breech mechanisms, i.e. that is both the same kind or they may be different, the breech mechanisms 16, 18 shown are rotatable cylinders having open chambers, the open chambers passing through infeed, firing and ejection stations. The chambers are fed from hoppers (Fig. 1, not shown) and the cylinders are driven by a motor 58 through a Geneva mechanism so that the chambers are halted in their stations (Fig. 5, not shown). Cam operated switches control the gas release into the bore of the barrel and the firing of the primary ammunition round (Fig. 5). The gun shown has a single, fixed barrel, but a group of rotatable barrels may be used. Different ammunition as disclosed in Specifications 1,247,871 and 1,247,872 may be used as the primary ammunition.
Patent GB-1521276-A (GB)
Title: Demand cardiac pacemaker
IPC: A61N1/365
Filed: 1975-10-14
Abstract: 1521276 A cardiac demand pacemaker MEDTRONIC INC 14 Oct 1975 42016/75 Heading A5R In a demand cardiac pacemaker of the type having a resettable pulse generator 12 (Fig. 2) which can be reset or inhibited from producing a stimulating pulse by a reset signal generator 74 (Fig. 3), when electrodes 13 and 14 (Fig. 2) sense appropriate heart electrical activity, an interference discriminator 16 is included to mitigate the effect of repetitive interference signals (mains hum etc.) which give false signals that may be mistaken for heart signals. The signals picked up by the electrodes that may contain repetitive interference signals 28 as well as the heart electrical signal 29 and are fed via an amplifier 24 combined with a high pass filter and a low pass filter 22, 23 and 25, 26 to a differential amplier system 36, 48, 42 which rectifies the signals. The rectified signal 30 charges a capacitor 51 having a large time constant compared with the repetetive interference signal. The voltage across the capacitor is fed to one input of a further differential amplifier comprising transistors 59, 65 and 71, and the other input is provided by the voltage at the junction of resistors 53 and 54. A capacitor 57 provides a delaying effect to the signal applied to the transistor 59 so that when a cardiac signal of sufficient magnitude appears, the voltage at the base of the transistor 65 is initially greater than the voltage of the base of transistor 59. This results in an output turning a transistor 72 which provides a trigger signal to the reset signal generator to inhibit a stimulating pulse from the pacemaker.
Patent GB-1270640-A (GB)
Title: Improvements in or relating to propulsion arrangements
IPC: F16H37/00
Filed: 1970-09-03
Abstract: 1,270,640. Gearing for driving two or more machines. LOHMANN & STOLTERFOHT A.G. 3 Sept., 1970 [5 Sept., 1969], No. 42160/70. Heading F2X. In a marine propulsion unit the engine, 1, is coupled to the propeller shaft 6 through the resilient clutch coupling 2 and a generator is driven from the countershaft 3b, connected to 1 through the resilient coupling 4. The hollow shaft 3d, driven by 4, carries the gear 3e which meshes with the pinion 3f. The coupling 2 is a double core friction clutch with pneumatic operation.
Patent GB-1063073-A (GB)
Title: Disc brakes
Inventor: RIDDY FREDERICK THOMAS
IPC: F16D65/18
Filed: 1962-11-08
Abstract: 1,063,073. Disc brakes. GIRLING Ltd. Feb. 4, 1964 [Nov. 8, 1962; Dec. 8, 1962], Nos. 42201/62 and 46417/62. Heading F2E. A disc brake having a caliper embracing the periphery of a rotating disc and friction pads which can engage opposite faces of the disc is given a self-servo action by permitting one friction pad a limited circumferential movement and arranging the drag force on that pad to be transmitted to the other pad by members pivoting in the caliper. A fixed caliper 10 guides the backing plate 19 of a friction pad and carries a piston and cylinder 13, 14 of an hydraulic actuator acting on a second pad 15, 16 which has limited movement in a circumferential direction accommodated by a flat roller cage 17 as shown or by a plate of low coefficient of friction or by a tilting strut connection between piston and pad. On circumferential movement of the pad on actuation of the brake the pad abuts at 27 with a ring 22 to pivot the latter about the appropriate pivot 23 or 24 and cause abutment 25 to apply the pad 19 through the automatic wear adjuster 25, 33. The latter is actuated by a pawl 35 fixed to the ring 22 and engaging teeth on the periphery of nut 26. A second embodiment described is that disclosed in Specification 1,063,074. Materials having different friction coefficients may be used for the pads on the two sides of the disc.
Patent GB-934101-A (GB)
Title: A method of and apparatus for affixing a nut to a panel
Inventor: STEWARD JERRY HANLAN
IPC: B23P19/06
Filed: 1959-12-11
Abstract: 934,101. Punching; jointing by forging. MULTIFASTENER CORPORATION. Dec. 11, 1959, No. 42225/59. Class 83 (4). [Also in Group XXV] In apparatus comprising a punch 126 and a die 9 between which a nut 6-7, Fig. 12, pierces a panel 8 and the panel is swaged over securing the nut in a single operation, non- magnet means 140, 101 within the punch-housing 16, 26 position the nut beneath the punch.  The nut-flanges co-operate with the die in swaging the panel; which may also be formed with a depression by the housing and the die. Alternatively, the depression may be preformed. The lower part 26 of the housing is carried by a post 20 slidable in the upper part 16, which is mounted on the press-slide 12. A spring 88 biases part 26 downwardly and a key 34 prevents its rotation. The punch is fixed to a screw 124 to a plate 68 between the housing 16 and slide 12. Nuts from a hopper 110 are delivered to a shoot 102 located in a slot in the end of post 20 by a plunger 82. A feed finger 152 for pushing the foremost nut beneath the punch 126 is carried by a slide 148 mounted on the shoot 102 and biased by a spring 119 against a cam 40 on the part 16. A clamp-and-stop plunger 56 for the nuts has a side projection 54 and is biased downwardly by a spring 64. Operation.-A depression D is formed as the housing 26 forces the panel against the die 9. In Fig. 1, the nut 7 beneath the punch is held in a sizing passage 132 between pivoted catches 140, Fig. 2, which release the nut when this is moved by the punch, rotation of the nut being prevented by a spring-pressed ball 130. Oversize nuts are reduced to size in the passage 132. Relative movement between the housing parts 16, 26 also causes the plunger 56 to press the next nut 6 out of shoot 102 and towards the floor of passage 27 when the feed finger 152 has been withdrawn, Fig. 7, by cam 40. During withdrawal of the punch, the finger moves nut 6 against the punch while movement of the rest of the nuts in the shoot is prevented by plunger 56. Nut 6 is delivered beneath the punch and the column of nuts in the shoot moves forward when the press returns to the position depicted in Fig. 1. A projection on the punch (Fig. 3, not shown) may deform the top threads in the nut, producing locking threads. The apparatus may have a number of heads for fixing a plurality of nuts simultaneously.
Patent GB-877479-A (GB)
Title: Centre mechanism for bagless cure tyre presses
IPC: B29D30/06
Filed: 1959-12-14
Abstract: 877,479. Tyre moulding machines. Mc- NEIL MACHINE & ENGINEERING CO. Dec. 14, 1959 [Jan. 7, 1959], No. 42379/59. Class 87(2). A tyre band B is shaped and cured by direct fluid pressure in a press by placing it on the lower mould half 21 with the lower bead in a seat 23, and then closing an upper mould half 20 to shape the band. Upper and lower bead clamping assemblies, 24, 25 comprising folding resilient " petal " members 70, 115 are held in folded position during the closing of the mould halves by the weight of a ring 80, Fig. 8, and a spring (150)-urged ring 135, respectively. When the halves are fully closed, members 94, 95 force the " petals " into moulding engagement with the beads. This arrangement allows the beads to roll upon themselves during shaping of the band, before they are clamped by the petals. Non pressure fluid may be supplied through inlet 106 and passages 113, during closing of the press. During curing high pressure fluid is supplied through the inlet 106, and additional high pressure fluid may be supplied through an inlet 26 to circulate the curing fluid. Before opening the mould air may be blown through inlet 26 to blow condensate out through the passages 113. After opening the mould, the tyre is stripped by moving a piston 140 upwardly to lift the lower bead ring 110 upwardly. A stem 138 is also lifted to fold the lower petals 115. The petals may have rubber pads 125, Fig. 13, or for heavy tyres, resilient metal elements (see Fig. 15, not shown).
Patent GB-998259-A (GB)
Title: Improvements in or relating to constructional units
IPC: E04C2/32
Filed: 1960-12-09
Abstract: 998,259. Suspended ceiling panels. J. R. BLAKE. Dec. 6, 1961 [Dec. 9, 1960], No. 42388/60. Heading E1V. [Also in Divisions A4 and F4] A constructional unit which may be used in suspending ceilings, temporary walls or partitions in exhibition stands is formed of synthetic plastics sheet material and comprises three or more sections secured to each other, each section being of dish-like shape and comprising an inner wall adjoining two end walls and two side walls and being secured directly to two others of said sections with each end wall of a section lying in contact with the end wall of another section. The material of the units is preferably polyvinyl chloride or polyvinyl chloride co-polymer sheet and may be formed into sections by vacuum or pressure moulding, matched die or resilient plunger moulding or by means of shaped rotating rollers. Fig. 1 shows a strip of material formed into a plurality of sections each comprising end walls 10, side walls 11 and an inner wall 12 and provided with edge flanges 14. A portion consisting of four sections is cut from the strip and the material bent at the junctions between the sections, the adjacent end walls being united by adhesive. The resulting units may be assembled into larger units, by forming the flanges 14 and these may be provided with edge flanges 17, Fig. 7, interconnected by closure strips 18 along the sides, the back and front being covered by transparent foils 19 to exclude dust. Pieces of opaque, translucent or transparent sheet material of various shapes and/or colours may also be located between the flanges of any of the units. The sections may also be assembled to form oblong, triangular or polyagonal shapes.
Patent GB-1065240-A (GB)
Title: Convertible serving window
IPC: E06B7/32
Filed: 1965-10-06
Abstract: 1,065,240. Serving windows. C. W. VAN WORMER. Oct. 6, 1965, No. 42428/65. Heading E1J. A serving window in a partition or door 10 comprises a panel 12 pivotally connected by hinges 13 to the door 10 adjacent the lower edge of an opening to move through 180‹ between the closed position and an open position in which the panel 12 is parallel to but spaced from the door below the opening (as shown in Fig. 5) and a removable server platform 14 locatable in the opening across the door 10 and inverted panel 12 by means of two pairs of support members 15a, 15c which engage the door and the inverted panel with parallel surfaces 16a, 16c which are lined with felt, cork &c. Strips 47, 48 are provided below the opening for contact by the support members 15a, and adjustable screw spacer 18a retains the panel 12 in firm engagement with the platform supports 15c. The platform has bearing plates 20 for raising the platform to clear the hinges 13 and for forming the contact points between the platform and the door and panel, and the plates 20 may be lined with cushioning material. The top peripheral edge of the window opening is provided with a groove formed by molding strips, such as 45, 46 attached to the door on both sides each strip having one edge extending (as shown on the panel 12) beyond the peripheral edge of the opening and a facing member such as 42 is held in the groove by friction to extend therefrom and can be renewed when necessary. Such strip on the door also functions as a shop for the panel 12 in the closed position.
Patent GB-1224127-A (GB)
Title: Battery-operated domestic appliance
IPC: G06M1/04
Filed: 1969-08-26
Abstract: 1,224,127. Switch indicators. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 Aug., 1969 [29 Aug., 1968], No. 42473/69. Heading HlN. [Also in Division G4D] Each time the switch 2 of a battery-operated domestic appliance is moved to the on position a counter wheel 7 is advanced. Assuming that the appliance is used for approximately the same duration each time then the count indicates the state of discharge of the battery. The counter can be zeroized by a screwdriver applied to slot 4.