baber/WOPTO huggingface dataset:
Patent GB-1353620-A (GB)
Title: Catalyst systems
IPC: C07C45/35
Filed: 1971-07-02
Abstract: 1353620 Acrolein SUMITOMO CHEMICAL CO Ltd 2 July 1971 [3 July 1970 6 July 1970 8 July 1970 15 Aug 1970 11 Sept 1970] 31113/71 Heading C2C [Also in Division B1] Acrolein is produced by gas phase reaction of propylene and oxygen in the presence of a catalyst of empirical formula wherein X is one or more of manganese, magnesium and cobalt, a is 12, b is 0 to 5, c is greater than 0 but not more than 1, d is 0À1 to 5, e is 0À1 to 5, f is 0 to 12, g is 36 to 89 and h is 0À1 to 12. The oxidation is carried out at 250-500‹ C. at a pressure of 0À7 to 5 atmos, a space velocity of 200-6000 litre gas/litre catalyst/hr. a molar ratio propylene : oxygen of 1 : 0À4 to 1 : 3 and in the presence of 1 to 15 moles of steam per mole of propylene. A diluent gas may be present, e.g. nitrogen, carbon dioxide or argon. Acrylic acid is obtained as by-product.
Patent GB-661744-A (GB)
Title: Improvements in baking ovens
IPC: A21B1/48
Filed: 1949-12-05
Abstract: 661,744. Bakers' ovens. VICARS, Ltd., T. & T. (Vicars, T. H. M. L., and Gross, A. B.). April 24, 1950 [Dec. 5, 1949], No. 31135/49. Class 51 (ii). In a baker's oven in which articles are progressively conveyed through the baking chamber on a heated support, additional heat is supplied to the support at the oven entrance in inverse proportion to the loss ,of heat from said support to the articles conveyed thereon. As shown, Fig. 1, dough for loaves, biscuits, &c. is placed upon an endless conveyer 1 for transmission through the oven 2 which is normally heated by gas burners 14. Burners 3 preheat the conveyer 1 before it enters the oven 2 whilst the additional heat is supplied by an endless moving belt 5 heated by the burners 4. These burners are so controlled that heat therefrom will be supplied in greatest quantity where the cold articles come upon the conveyer and the additional heat may be reduced in quantity progressively as the conveyer passes into the oven, i.e. the burners 4 adjacent the pulley 6 give out more heat than the burners 4 adjacent the pulley 7. In the arrangement shown in Fig. 2, the belt 5 is lapped around a jockey pulley 9 and displaceable roller 10, thus allowing adjustment of the point at which the additional heat commences to be transferred to the conveyer 1. As shown, Fig. 4, the additional heat is supplied by a refractory or metallic body 11 heated by burners 12. Instead of gas, electric or oil heating means may be employed.
Patent GB-1175609-A (GB)
Title: Improvements in or relating to Carriages for Drawing Machines
IPC: B21C1/28
Filed: 1967-07-06
Abstract: 1,175,609. Drawing. MANNESMANNMEER A.G. 6 July, 1967 [27 Sept., 1966], No. 31154/67. Heading B3P. A drawing carriage has jaws 3 held in the work engaging position by a lever 1 pivoted at 2 to an arm 4 which is releasably secured to the carriage by a spring biased displaceable latch 7. The jaws may be replaced by moving the latch 7 against the action of a spring 9 and holding it in the retracted position by passing a pin through a bore 10 in the latch 7 and a bore 12 in the carriage thus enabling the arm 4 to be pivoted upwards about a pivot 5.
Patent GB-1046386-A (GB)
Title: Multiple electrical connector
IPC: H01R13/11
Filed: 1965-07-22
Abstract: 1,046,386. Two-part couplings. AMP Inc. July 22, 1965 [Aug. 7, 1964], No. 31202/65. Heading H2E. An electrical connector CB for use with a multi-bank stepping switch SS comprises an arcuate insulating block in which contacts 14 are arranged to engage with contacts 1 on a complementarily-shaped lower plate of the stepping switch. The block is formed by a series of stacked plates having radial recesses in their sides into which bifurcated contacts, Fig. 8 (not shown), are locked by spring detents pressed out from the contacts. A substantially semi-circular aluminium plate 10, 11 is arranged on either side of the block. The lower part of the stepping switch has a guide arm 4a which engages in a groove, the entrance to which is tapered, in the plate 10. As the two parts are brought together some of the contacts of the stepping switch engage the mating contacts and the others are brought into engagement on rotation of a lever 17 pivoted on the plate 10 and arranged to engage a screw 7. The lever 17 may be clamped by a set-screw 21. An aluminium cable clamp 22 is provided.
Patent GB-234010-A (GB)
Title: Improvements in or connected with adjustable resistances for use in connection with wireless and other electrical apparatus
IPC: H01C10/40
Filed: 1924-12-30
Abstract: 234,010. Chase, F. C. B., and Pethick, V. Dec. 30, 1924. Variable resistances. - A variable resistance for electrical circuits comprises a container a, preferably non-metallic provided on opposite flat inner walls d with two or more lines of, or grooves loaded with, graphite or other suitable resistance material. A sliding block b, preferably non-metallic, actuated by a screwed or sliding control c carries two contacts g of carbon or the like electrically connected by a compression spring h. Fixed terminal connections e, e are arranged at the lower end of each trace. Adjustment of the block b varies the resistance. The container is fitted with a lid, not shown, so that the element is entirely enclosed. In a modification, the container a may be of cylindrical form and the resistance lines or grooves may be arranged in spiral form..
Patent GB-652344-A (GB)
Title: Shaft seals for low temperature expansion engine
IPC: F01D11/04
Filed: 1948-12-03
Abstract: 652,344. Stuffing-box substitutes. LINDE AIR PRODUCTS CO. Dec. 3, 1948, No. 31306. Convention date, Dec. 3, 1947. [Class 122(v)] In an expansion turbine apparatus including an impulse wheel disposed within a casing and mounted on a long shaft, and a shaft bearing mounted in an extension of said casing, the space between the shaft and casing extension containing expanded fluid under super-atmospheric pressure, escape of such expanded fluid along the shaft is prevented by a film-retaining surface completely surrounding a portion of the shaft being supplied with lubricant under a pressure greater than said super-atmospheric pressure, excess lubricant escaping along the shaft being drained from either side of the film-retaining surface. As shown in Fig. 2, the film-retaining surface 60 surrounding the shaft 18 may be formed in a sleeve 28 mounted on the casing extension 24. Annular channels 61, 63 connect to the lubricant supply line 39 and the drainage pipe 42 respectively. Small annular grooves 62 may be provided. Creepage of lubricant is prevented by sealing rings 65, 66 housed within a counterbore 64. The pipe 42 leads to a chamber having a valve controlling the flow of lubricant backto a lubricant receiver. Circulation of the lubricating fluid maintains the desired temperature.
Patent GB-911279-A (GB)
Title: A new or improved roller and ring mill
Inventor: ENGLER OTTO
IPC: B02C15/00
Filed: 1961-08-31
Abstract: 911,279. Edge-runner mills. VEREINIGTE KESSELWERKE A.G. Aug. 31, 1961, No. 31403/61. Class 59. In a mill in which milling rollers 6 run between a rotary ring 2 and a spring-loaded pressure ring 7, the rollers are axle-less and are maintained at the required distance from one another by means of the arms 12, 14 of a freelyrotatable guide spider. The arm 12 is rigidly fastened to spider hub 13 to which the arms 14 are movably fastened. Specification 672,009 is referred to.
Patent GB-212609-A (GB)
Title: Improvements in and connected with wheel tyres
IPC: B60C11/02
Filed: 1922-11-17
Abstract: 212,609. Ogilvie, J. S. Nov. 17, 1922. Tread bands.-Tyre covers are formed with one or more V-shaped grooves in which are detachably fitted tread bands e of reinforced rubber &c., each having one or more wire cores f. The bands e may be continuous, or as shown in Fig. 2 they may be in sections with the wires f hooked together. To prevent creeping, the bands and the bottoms of the grooves may be formed with interengaging projections.
Patent GB-255305-A (GB)
Title: Improved automatic boot cleaning machine
IPC: A47L23/02
Filed: 1925-12-14
Abstract: 255,305. Schmalfuss, P. Dec. 14, 1925. Boots and shoes, cleaning. -The boot or shoe, with the foot inside, is placed upon a stationary stand 62 and is acted on by five vertical brushes 31 and a horizontal brush 44 all of which are carried by a truck 4 which is reciprocated along rails 2. The brushes are positively rotated, and means are provided to raise the horizontal brush so that it can act upon boots or shoes.
Patent GB-221133-A (GB)
Title: An improved variable electric resistance
IPC: H01C10/32
Filed: 1923-12-18
Abstract: 221,133. Shortt, B. F. Dec. 18, 1923. No Patent granted (Sealing fee not paid). Regulating switches.-A variable electric resistance comprises a strip 3 of high-resistance material secured to a circular insulating core 1 and having terminals 4. An annular coil of wire 5 cut through at the parts 5' has its ends also secured to the terminals 4, and is temporarily immersed in a bath of molten insulating material, such as Chatterton's compound, being withdrawn when the material is in the plastic state. A handle 10 rotates the contact arm 8 to vary the length of the resistance between the wires 4', 8'. The strip 3 may be cartridge paper coated on the outer surface with a mixture of graphite powder, French chalk, and' gum mixed in proportion according to the resistance required.
Patent GB-884947-A (GB)
Title: Improvements in and relating to the welding of structures
IPC: B23K9/02
Filed: 1959-09-17
Abstract: 884,947. Welding by fusion. UNION CARBIDE CORPORATION. Sept. 17, 1959 [Sept. 18, 1958], No. 31677/59. Class 83 (4). In gas-shielded metal arc welding of a horizontal seam between upright plates, a magnetic flux carried by the shielding gas forms an adherent coating on the electrode. Welding heads 20 staggered relatively to the seam are supported on a carriage 22 straddling and running along the top of the plates P being welded. The side frames 10 of the carriage are vertically adjustable.
Patent GB-267591-A (GB)
Title: Improvements in and relating to controllers for electric motors
IPC: B66C13/24
Filed: 1925-12-15
Abstract: 267,591. West & Co., Ltd., A., and West, A. Dec. 15, 1925. Master control systems; electric braking.-In controlling a motor A for lowering loads in electrically operated hoists and the like, a push switch C<1> is connected so that, when the master controller C is in the" off " position shown, the closure of the switch energizes the coil of a relay R<1> which opens contactors 1, 2, 7 previously establishing potentiometer and rheostatic braking circuits, and closes contactors 3, 4, 5, 6 establishing a resistance circuit for the motor across the mains.
Patent GB-291122-A (GB)
Title: Improvements in automatically variable speed gearing for power transmission
IPC: F16H61/02
Filed: 1927-09-17
Abstract: 291,122. Bentley, J. Sept. 17, 1927. Systems for transmitting mechanical power.- To vary the speed and torque of an electric motor automatically according to variations of resisting torque, the driving shaft a, Fig. 1, is coupled to the driven shaft through an epicyclic gear having an outer reaction member c which carries a dynamo-electric generator electrically connected to the motor so that the generated voltage always acts to retard the drive. The dynamo-electric generator may, as shown, consist of a solid or laminated iron armature g revolving under salient poles h of a stationary yoke. When the driving power is taken from a direct-current electric motor, the motor j, Fig. 3, may be electrically connected to brushes of the braking dynamo l so that increased speed of the dynamo reduces the effective voltage at the motor terminals. When a three-phase driving motor is employed, the dynamo has a three-phase rotor p, Fig. 4, connected through slip-rings to the rotor windings q of the motor, so as to increase the electrical slip of the motor with increasing speed of the dynamo.
Patent GB-484931-A (GB)
Title: Improvements in sealing rings for sleeve valves or pistons of internal-combustion engines
IPC: F16J9/24
Filed: 1936-11-23
Abstract: 484,931. Piston-rings. ROWLEDGE, A. J. Nov. 23, 1936, No. 31988. [Class 122 (i)] In a piston or junk head of an internal-combustion engine in which the ring groove is provided with a recess or recesses G<1> for co-operation with a projection or projections on the ring to prevent relative rotation, the ends of the recess are provided with wear resisting inserts H.
Patent GB-358744-A (GB)
Title: Improvements in lighting apparatus
IPC: F21V5/00
Filed: 1930-10-24
Abstract: 358,744. Street and like overhead lamps. ANCIENS ETABLISSEMENTS BARBIER, B•NARD, ET TURENNE, SOC. ANON., 82, Rue Curial, Paris. Oct. 24, 1930, No. 32025. Convention date, March 21. [Classes 75 (ii) and 75 (iv).] In an overhead lamp for street or other outdoor or indoor r lighting, a source of light is surrounded by Fresnel dioptric lenses which are curved on the outside to form a spherical cap, the dimensions, profile, and number of the lenses being so determined that the refracted rays produce a substantially uniform illumination of a given surface in a plane perpendicular to the axis of the lamp. In the form shown, the lenses 3, 4, 5 are supported below a source of light 1 by a metal frame 6, which carries a plug 7 for the reception of a piece of coloured glass, and are surmounted by a reflector 2. For the illumination of a rectangular surface, parts of the upper portions of the lenses are covered by metallic or glass reflectors, whilst, for indirect or semi-indirect lighting, the lenses are supported above and a reflector or diffusing screen is arranged below the source of light. The lenses may be made of cut, cast, or cut and pressed glass, and a number of such lamps may be so arranged as to illuminate a relatively large surface. The Specification as open to inspection under Sect. 91 (3) (a), states also that catadioptric lenses may be used in combination with, or in place of, the dioptric lenses. This subject-matter does not appear in the Specification as accepted.
Patent GB-202568-A (GB)
Title: Improvements in or relating to garments for personal wear
IPC: A41D27/10
Filed: 1922-11-23
Abstract: 202,568. Dodd, L. S. Nov. 23, 1922. Drawings to Specification. Sleeves for overalls are cut about half an inch longer than usual along the inner seam and a V-shaped vent is formed by cutting away a wedgeshaped portion at the lower end on each side of the seam. The length of the vent is reduced to about four and a half inches by sewing up the upper portion, and the cuff ends of the vent are provided with a fastening device so that the end of the sleeve may fit closely around the wrist.
Patent GB-494930-A (GB)
Title: Improvements in apparatus for mixing pulverulent materials
IPC: B01F5/00
Filed: 1937-11-22
Abstract: 494,930. Mixing - mills ; disc mills. GENTILLI, P. Nov. 22, 1937, No. 32138. [Classes 59 and 86] Mixing-apparatus for dry or moist pulverulent materials comprises a pair of smooth discs which are free from grinding roughnesses and rotate in contact in the same direction about axes out of alignment within a steepwalled hopper leading to the discharge outlet. The upper disc 2 is mounted on a ball joint 14 carried by a feeding shoot 10 which can be adjusted to vary the displacement between the axes of the discs by means of screws 11. The lower disc 1 is driven by a shaft 3 within a sleeve 9 fitted with a rack and weighted pinion 5 by means of which the discs are pressed together. The material discharged at the edges of the discs falls into a steep-walled hopper 12 with a discharge 13. Specification 16511/15, [Class 59], is referred to.
Patent GB-485762-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal cyanides
IPC: C01C3/00
Filed: 1936-11-24
Abstract: Alkali metal cyanides are obtained by reacting an alkali metal amide, or alkali metal and ammonia, with carbon prepared by carbonizing coal at temperatures between 450 and 650 DEG  C.  The coal is preferably one of low ash and sulphur and of high vitrain and durain content and the preferable carbonization temperature is 500-600 DEG  C.  Before carbonization the coal may be subjected to a heat treatment at 100 DEG  C.  The duration of the carbonization may be 1-4 hours.  The carbonization may be effected slowly to avoid cracking oils in the coal.  Tarry vapours should be removed as speedily as possible and for this purpose steam may be introduced. Preferably, the coal is treated in shallow layers on trays in a horizontal retort.  The cyanides may be produced by the known methods previously applied to wood charcoal, e.g. sodium may be fed in at the top of a column of carbon maintained at red heat while dry ammonia is passed in from below, or molten sodium amide may be run on to an excess of red hot carbon.
Patent GB-1043423-A (GB)
Title: Tyre building and shaping former
IPC: B29D30/24
Filed: 1963-08-15
Abstract: 1,043,423. Tyre building former. DUNLOP RUBBER CO. Ltd. Aug. 15, 1963 [Aug. 21, 1962], No. 32234/63. Heading B7C. The building surface of a tyre building former is formed by an inflatable member 40, which is supported in its cylindrical state by a plurality of segments 11, each segment comprising at least two portions 11a, 20, normally axially adjacent but relatively radially movable so that one portion 20 may be disposed radially within the other 11a when the former is axially collapsed (Fig. 1, lower half). As shown, each segment comprises a central portion' 11a and two end portions 20. Portions 11a are -moved radially by an inflatable tube 5 against the inward pull of rubber bands 12. Similarly portions 20 are moved by tubes 22 and rings 24. The member 40 is shown as an inflatable diaphragm, but may be an annular inflatable bag. The former has at each end a ply supporting and turnover member 41, which comprises an inflatable bag 57, supported by segments 49 and movable by tubes 45, 46 (Fig. 5, not shown) to effect turnover. The axially inner end of each bag 57 affords a bead recess 61, expandable by a tube 29. In use, tubes 5, 22, 29 are all deflated, to support diaphragm 40 in a cylindrical state while tyre plies are applied and bead cores positioned (Figs. 2, 3, not shown). Tubes 5, 22, 29 are all inflated expanding the plies within the bead cores, and ply turnover effected (Figs. 4, 5, not shown), followed by consolidation of the plies by rollers (Fig. 6, not shown). Tubes 22 are deflated to move segment portions 20 radially inwards, and when diaphragm 40 is inflated (Fig. 7, not shown), and end members 14 of the former moved axially inwards to shape the tyre carcase, portions 20 lie radially within portions 11a. The tyre tread and sidewall may be applied to the plies before expanding the carcase (Fig. 7), or the carcase may be expanded within a tread ring supporting a preformed tread and breaker.
Patent GB-488351-A (GB)
Title: Improvements in electrically heated soldering irons
IPC: B23K3/03
Filed: 1937-11-24
Abstract: 488,351. Soldering-irons. SACHS, E. Nov. 24, 1937, No. 32405. [Class 83 (iv)] [Also in Group XI] An electric soldering-iron may be provided with two or more bits. The bit 31 may be connected rigidly to a housing for the heating coils ; the bit 32 is formed with a cavity 34 to fit a conical projection 33, and the two parts are connected by a screw 35.
Patent GB-1152228-A (GB)
Title: Hydraulic Power Actuator System
IPC: F15B21/0423
Filed: 1967-07-14
Abstract: 1,152,228. Fluid-pressure servomotor systems. BENDIX CORP. July 14, 1967 [July 29, 1966], No. 32475/67. Heading G3P. A hydraulic actuator, particularly for positioning the nozzle gates of a gas turbine, comprises a variable stroke piston pump 24 drawing fluid from one of a pair of conduits 142, 144 and delivering it to the other depending upon the angular position of a wobble plate 46 actuated by a servomotor 48, 50 responsive to an error signal, and remotely located hydraulic actuator means, such as 12, the piston 134 of which is responsive to the differential pressure between two chambers 138, 140 connected to the conduits 142, 144, the chambers 138, 140 being connected to a reservoir chamber 22 through flow limiting means 146, 148 providing a controlled bleed flow to the reservoir chamber which is maintained a low superatmospheric pressure by a regulating accumulator 88. In the preferred embodiment, three actuators 12, 14 and 16 are connected by a feedback cable 214, a cam 216, an over travel link 252 and links 266, 270, 282, 284, 86 and 84 to the control valve 56 of the servomotor which may also be actuated by a manual input signal from a second over travel link 270. The valve 56 connects conduits 52, 54 for the servomotor 48, 50 with the reservoir 22 or with a delivery line 66 from a boost pump driven by a shaft 34 and supplying fluid at a pressure intermediate that in the reservoir 22 and the maximum pressure from the pump 24. Losses in the system are made up from the line 66 to the lower pressure conduit of the pair 142, 144 through a shuttle valve 180. A sleeve 120 connected by a passage 104 in a rod 100 with the passage 66 takes up a position dependent on the amount of fluid in the system. A pressure regulator valve 126 subject to the pressure acting on the accumulator piston 96 and to the pressure in the line 66 maintains the reservoir and boost pump pressures at the required values. The flow limiting means 146, 148 provide a controlled amount of leakage to prevent fluid remaining static and decomposing near hot engine areas and each contains a spring-loaded valve 154 regulated by the pressure drop across a restriction 164 leading through lines 166, 168 to the reservoir 122. Excess pressure in the latter may be relieved manually or automatically by a valve 196. To effect compensation for temperature changes on the feedback cable 214, a temperature reference cable 234 is arranged to shift the position of a spring-loaded pulley 224. An indicator 242 of actual gate position is also connected to the feedback cable 214. A feedback signal is also provided by a cam 82 forming part of the wobble plate 46 and improves the system response by increasing the gain near the null position. Null setting and calibration of the system are provided by adjustment of the link 282.
Patent GB-172630-A (GB)
Title: Method of increasing the speed of water courses for the production of motive power
IPC: F03B13/14
Filed: 1921-12-05
Abstract: 172,630. LiÚnard, L. A. P., and LiÚnard, H. A. E. Dec. 7. 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Machines and apparatus.-Means for generating power from watercourses comprises bent pipes having their inlet ends submerged and facing upstream, while their outlets are above the water and discharge to hydraulic motors. The pipes b may be carried by floats a and may discharge into a reservoir g. The floats, which may be spaced apart, or placed in contact, are held in position by fixed beams c engaging extensions of the pipes b, and cables d passing round pulleys c and attached to weights f, and two series of pipes with their inlets at different levels may be employed. Gratings j provided with a footbridge m are placed up-stream to intercept floating objects and guide them to pass clear of the floats.