baber/WOPTO huggingface dataset:
Patent GB-596619-A (GB)
Title: Catalytic cracking of hydrocarbons
IPC: C10G11/18
Filed: 1945-07-30
Abstract: <PICT:0596619/III/1> In dense phase catalytic cracking processes of the kind in which the catalyst is cycled continuously through reaction and regeneration zones, regeneration gases used to fluidise the catalyst passing from the regenerator to the reactor through a catastat (i.e., a vertically-disposed standpipe of sufficient length to afford the desired head pressure to circulate the catalyst) are removed by introducing into the catastat a normally gaseous hydrocarbon product of the process in an amount which is sufficient to displace the regeneration gas and maintain the catalyst in fluidised condition but is insufficient to cause said hydrocarbon gas to pass up through the catastat into the regeneration zone.  The gases used are preferably hydrocarbons containing less than four carbon atoms in the molecule separated from the other hydrocarbon reaction products by compression and cooling.  In a plant comprising reactor 5, regenerator 8, fractionator 11, and associated cooling, compression and separation stages 14, 15, 20, 21, 22, 23, 24, 25 the gases from separators 22, 25 are collected by pipes 28, 29 and injected through manifold lines 30, 30a into the catastats 3, 6, associated with the reactor and regenerators 5, 8.  Specification 578,962 is referred to.
Patent GB-689157-A (GB)
Title: Improvements in or relating to a conveyor
IPC: B21D43/14
Filed: 1949-08-16
Abstract: 689,157. Feeding to a rotary table. STEVENS, A. H. (Zinn, J. A.). Aug. 16, 1949. No. 19558/51. Divided out of 689,094 [Group XVII[ Class 78 (i). Carton blanks are delivered by endless conveyer 214, Fig. 3 to rotating table 44, a blank being taken from the conveyer by a pusher 219 and deposited in front of ram 59 and being pressed into shape between ram 59 and mandrel 56. The endless conveyer 214 pushes blanks along rails beneath, its chains carrying bars which are slotted so that the bars contact and engage the blanks but do not contact the rails. Pusher 219, Fig. 4, is fixed in table 44 and has contacting element 230 pivoted thereto at 234 and resiliently held by spring 237  so that as it sweeps round with the table, the contacting element vields when it strikes the said conveyer but is stiff to engage and push forward a blank. Figs. 5 and 6. The blank is pushed forward by pusher 219  so that it falls on rails 201 and 202 and between guides 204 and 203, the ram pressing the blank forward till it is held between stops 77, 206, 207, and the mandrel 56 then descending till the blank is forced into the well 55 against stops 77, 206, 207, 208, 209 so that it assumes the correct shape.
Patent GB-620161-A (GB)
Title: Improvements in or relating to apparatus for metering the fuel supplied to a prime mover
IPC: G01F9/00
Filed: 1946-07-01
Abstract: 620,161. Fluid-pressure servomotor-control systems ; valves. NAPIER & SON, Ltd., D., CHAMBERLIN, R. H. D., WYNNE, C. H. L., and SKELLERN, J. July 1, 1946, No. 19609. [Class 135] [Also in Group XXVI] The fuel metering device of Specification 620,052, is modified in that the turbine drives an airscrew, a servomotor operating on an airscrew governor is interposed between the metering unit and the governor, a third movable member e is provided for the metering orifice, and means is also provided, whereby this member is moved in accordance with speed changes in the prime mover, both actual and as selected by the control. The invention is described with reference to a metering device similar to that described in Specification 620,052, but in which capsule C is replaced by a piston. The third movable member e of the metering orifice is actuated by a lever a movable between stops d, d<SP>1</SP>, this lever being connected to servo-piston P through a link f and a floating lever g. The other end of the latter lever is connected through a cam slot h to a lever h<SP>1</SP>, h<SP>3</SP>, which actuates the pistoncontrol valve j of a servo-piston k<SP>1</SP> acting on the airscrew governor l. Due to restrictions in the supply and exhaust passages to the servomotor cylinder there will be a slight delay in the response of the servomotor. There is a repeat-back connection from the servo-piston k<SP>1</SP> through an eccentrically-pivoted lever m on to a sliding sleeve seat n for the control valve j. The speed is set or selected by manual actuation of lever h<SP>3</SP>. In a modification, lever a is replaced by a bell-crank so that sleeve e will rotate instead of slide. The lower edge of the sleeve is of stepped form and the single, triangular port H in sleeve H<SP>1</SP> is replaced by two spaced triangular ports.
Patent GB-961683-A (GB)
Title: Improvements in or relating to interior building structures
IPC: E04B2/82
Filed: 1961-05-31
Abstract: 961,683. Partitions. HOLLAND & HANNEN AND CUBITTS (GREAT BRITAIN) Ltd., and R. NICHOLSON. May 15, 1962 [May 31, 1961], No. 19664/61. Heading E1V. A partition structure as described and claimed in Specification 875,704 is modified by the provision of a nut 8 on the screw threaded pin 2 having its top face abutting the bottom end of the hollow post member 1 so that the projection of the pin from the hollow member may be adjusted by turning the nut. The pin 2 and the bore 10 of the post member 1 are made of corresponding flattened cross-section to prevent rotation of the pin in the hollow member. The projecting part of the pin 2 below the bottom of the post 1 is covered by a short length 1<SP>1</SP> of a hollow member having a crosssection similar to the post member 1 but modified in that one of the longitudinal channels extends inwardly, Fig. 4, to include the central bore so that the length 1<SP>1</SP> can be moved laterally to embrace the projecting part of the pin 2. Skirting panels 26 are engaged and retained by the channels 12<SP>1</SP> of the members 1<SP>1</SP>. The gap between the partition panels 16 and the skirting panels is covered by facing plate panels 18. The edges of the partition and skirting panels have metal nosings such as shown at 27, Fig. 4.
Patent GB-177747-A (GB)
Title: Improvements in or relating to locks
IPC: E05B63/06
Filed: 1921-07-21
Abstract: 177,747. Zimmermann, H. July 21, 1921. Addition to 177,652. Locks, attaching and adjusting; bolts.-In a modification of the parent Specification the lock mechanism is secured to the rods e of the bolt by clamping-plates, connected to the lock mechanism. Two plates, such as r, riveted together at n are fitted with screws h, i for clamping them on the rods e. The rods or the clamps or both may have serrated engaging surfaces.
Patent GB-1430969-A (GB)
Title: Lifting devices
IPC: B66C19/00
Filed: 1974-05-04
Abstract: 1430969 Overhead cranes on vehicles PTH (CLITHEROE) Ltd 4 June 1974 [7 July 1973 4 May 1974] 32479/73 and 19676/74 Heading B8E The vehicle mounted overhead crane lifting device of patent 936,208 is modified by the provision of a drive unit 4, Fig. 1, which by chains 5 drives sprockets 6 which engage roller chains mounted on the vehicle platform so as to move the device along the vehicle platform. The lifting means of the prior patent may also be driven by the unit 4. In a modified construction, Fig. 5, a supporting framwork la which runs on the vehicle platform has a pivotally mounted beam 6a from which raisable and lowerably lifting means including a lifting fork is suspended and is operable by an hydraulic system as in Specification 936,208. The lifting means are movable along the beam 6a which can be swung between positions 7a extending from the side of the vehicle. The latter embodiment may be driven by a petrol engine having a starting battery charged by the engine and movable for other electrical devices such as floodlights and warning lights.
Patent GB-729398-A (GB)
Title: Improvements in sheet separating and feeding apparatus
IPC: B65H7/12
Filed: 1953-07-17
Abstract: 729,398. Feeding sheets. PITNEY-BOWES, Inc. July 17, 1953 [Jan. 2, 1953], No. 19920/53. Class 100 (1). Sheet-separators; faulty-feed control devices.- In sheet-separating and feeding apparatus, particularly for use with a counting machine, means for detecting the presence of two superposed sheets and stopping the feed is arranged. so that folded-over edges of sheets do not actuate the stop means, and the detector comprises a rotary member which is partially rotated by two superposed sheets or by the folded edge of a sheet and then returns to normal position. As shown, sheets, such as used banknotes, are stacked on a sloping plate 13 and urged by a plate 15 towards driven rollers 17, 19 which both help to draw the foremost sheet downwardly through a gap 20 formed between the adjustable ends 21a of slide bars 21 on the plate 13, and the surface of the roller 19. A roll 23, rotatable on a shaft 25 carried by a slide bar 27 which can be adjusted by a screw clamp 30 and is urged to the left (Fig. 1) by a spring 29, co-operates with the roller 19 to form a calliper device which detects the presence of two superposed sheets. The roll 23 is normally held against rotation by a torsion spring 35 in a starting position determined by a stop pin, so that when single sheets pass between the rollers 19, 23, the roller 23 will not be rotated. When, however, two superposed sheets or a folded sheet pass between the rollers and the roller 23 is thus rotated through a predetermined angle, a striking surface 41 on the roller 23 engages and moves a finger 43 to cause cessation of the drive to the rollers 17, 19. If a single sheet which is merely mutilated or folded at the ends passes between the rollers 19, 23, the latter will not be rotated through a sufficient angle to cause the finger 43 to be moved. The finger 43 rocks a shaft 47 on which it is secured, and this causes, through link 71 and cranks 70, 73, the rocking of a further shaft 75 on which is a tappet 77. The tappet moves the end of a lever 79 integral with a latch finger, the latter releases a spring- urged brake finger rotatable on the drive shaft 53, and causes a floating brake member 89 to be tilted so that the walls of a notch 99 therein bind securely on the faces of a disc 101 secured to the shaft 53, and thus stop rotation of the shaft. The shaft 53 is driven through a friction clutch 131 and a one-way roller clutch 137 which allows over-running of the feed rollers. The stop means can readily be released by means of a finger latch. Sheet separation is assisted by two further rollers 49, 51 of the same diameter as the roller 19 and secured to the same driving shaft 53, which co-operate with two presser rollers 55, 57 of the same diameter as the roller 23, but mounted loosely on a shaft 59 carried by a bar 61. The bar 61 is pivoted to links 63, 65 such that the bar is urged by a spring 67 in a line coincident with its longitudinal axis.
Patent GB-397290-A (GB)
Title: Improved manufacture of sodium nitrate and ammonium chloride
IPC: C01D9/10
Filed: 1932-07-14
Abstract: Sodium nitrate and ammonium chloride are separated from a solution containing the salts by cooling the solution to crystallize sodium nitrate, diluting the mother liquor and crystallizing ammonium chloride by cooling the diluted mother liquor below the temperature to which the solution has been cooled in the previous step. Solutions prepared by the reaction of ammonium nitrate and sodium chloride in aqueous solution may be so treated.  The first cooling to separate sodium nitrate may be to 15 DEG  C., the subsequent cooling being to -24 DEG  C.  Sodium nitrate and ammonium chloride may be obtained from ammonium nitrate and sodium chloride while operating in a closed cycle, sodium chloride with or without a portion of the ammonium nitrate being added to the liquor after the separation of the sodium nitrate but prior to the separation of the ammonium chloride, the balance of salts required being added after the separation of the ammonium chloride and finally water being evaporated to restore the solution to its original composition and original temperature of say 100 DEG  C.  The added salts may be dissolved in the water used for diluting the liquor.  The method may be started at any stage in the cycle of operations and the salts added to the liquors may be replaced to an extent dependent upon the molecular quantities desired by by-product mixtures or solutions of sodium nitrate and ammonium chloride.
Patent GB-585484-A (GB)
Title: Improvements connected with containers or tanks
IPC: B65D6/00
Filed: 1944-10-17
Abstract: 585,484. Containers or tanks. ROBBINS, H. G. Oct. 17, 1944, No. 20024. [Classes 18 and 66] [Also in Group XXIX] In a container of the type built of sections with marginal flanges disposed at or about 45‹ to the body portion, the flanges overlapping and being secured together, the sides are formed of plates 12 with inclined flanges 13, 14, the flange 14 being deeper than the flanges 13 and being arranged outside a flange 13 of the adjacent side; the top and bottom of the container may be formed of plates 17 with deep flanges 16 to overlap the flanges 13 of the sides, or the top edge of the upper flanges of the side plates may be turned over at right angles to the body of the plates and a top secured thereto. The flanges of the plates 17-and the ends of the flanges 14 are cut away as at 15 to facilitate jointing. Packing strips may be placed between the flanges, which are bolted together.
Patent GB-1056487-A (GB)
Title: Improvements in or relating to piston valves
IPC: F15B13/04
Filed: 1964-05-14
Abstract: 1,056,487. Valves. L. REXROTH. May 14, 1964 [May 21, 1963], No. 20040/64. Heading F2V. A piston valve 41, not shown, is moved axially in a bore 2 by fluid pressure acting in the chambers 28 and 29 controlled by a valve 25. The valve 41 controls flow through a pump port 16, reservoir port 17, and consumer ports 14 and 15 and has a centring piston 61 and 67 mounted for axial movement in each end, each piston 61 and 67 having a flange 62 projecting radially beyond the valve 41 and co-operating with a stop surface 63 in the housing 1, the flange 62 having at least one through passage 64 in the region of the end face of the valve 41. In operation, fluid from the pump 32, is directed by the valve 25, in its central position, to both chambers 28 and 29 to centre the valve. Movement of the valve 25 to the left connects chamber 29 to the pump 32 to move the valve 41 to the left, whereupon fluid-pressure acts first on the piston 67 until it abuts the stop surface 63 and then on the end face of the valve 41 through the passages 14, the chamber 28 being connected to the reservoir 11. Movement of the valve 25 to the right connects chamber 28 to the pump 32 and chamber 29 to the reservoir 11 and moves the valve 41 and piston 61 to the right. Lines 22 and 23, connected to chambers 28 and 29 respectively, have adjustable throttle valves 37 and 38, respectively, connected into them. Springs 65 and 68 centre the valve 41 when fluid-pressure is not acting.
Patent GB-865631-A (GB)
Title: Improvements in or relating to airflow control means
Inventor: MILNE ALFRED JAMES GRAHAM
IPC: F23N5/18
Filed: 1956-06-28
Abstract: 865,631. Make-and-break switches, mechanical; pressure actuation of switches; thermal switches. KELVIN & HUGHES Ltd. June 18, 1957 [June 28, 1956], No. 20043/56. Class 38 (5). ]Also in Group XXXV] The flow of air in duct 9 to a boiler combustion furnace is controlled in response to signals received at 25 representing " boiler demand " by a damper 8 linked to a reversible electric motor 7 so that the differential pressure produced by a restriction 10 in the duct and sensed by a diaphragm 12 is balanced against the input signal translated into a force by motor 20, cam arrangement 22, 23 and spring 13, any lack of balance acting through mercury tilting switch 6 to adjust the damper. When the signals received at 25 are in pulse form, the on-off ratio representing demand, as from the controller described in Specification 865,632, the motor shaft may be rotated alternately in each direction in " pulse " and " no pulse " periods, any difference from unity in the ratio being thus integrated to adjust the flow rate. The Provisional Specification describes and illustrates a similar arrangement having a bimetallic element in place of motor 20 and cam 22.
Patent GB-170088-A (GB)
Title: Improvements in or relating to collapsible brackets
IPC: A47B19/00
Filed: 1920-07-09
Abstract: 170,088. Kent-Mitchell, Ltd., and Galley, F. G. July 9, 1920. Collapsable brackets.-A collapsable bracket comprises two lattice-trusses C, the upper end of the end member Q of each truss being pivotally connected by a pin P to the centre of an L-shaped bracket S provided one on each side of the wooden support E, and the ends of the other end member V of the truss having pins X, W, for sliding engagement with the arms of the brackets S. Each truss is attached to the support B by L- shaped brackets A, the upper end of each truss member H being pivotally connected by a pin K to the brackets A, while the lower end of each truss member J is provided with a pin L engaging a slot M provided with retaining notches N, O. Intermediate notches between N, 0 may be provided.
Patent GB-280626-A (GB)
Title: Improvements in cutters for cigarette machines
IPC: A24C5/30
Filed: 1926-08-16
Abstract: 280,626. Universelle Cigaretten-mas chinen-Fabrik J. C. M³ller & Co., and Hohn, M. Aug. 16, 1926. Cigarette-making machines.-Mechanism is provided for grinding the cutter in a continuousrod machine. An oil-tight casing 1 encloses the main driving-shaft 6, toothed gearing 3, 4, 5, and a vertical spindle 10 for transmitting motion to the shaft 13 on which the cutter-carrier is mounted. The shaft 13 rotates in bearings in a casing-cover 14 the base of which is seated in a circular recess in the main casing 1. To retain the cover 14 and the shaft 13 in position, bolts pass through slots in the cover. The end of the shaft 13 is forked, a pivot pin 22 passing through the two ends and through a lug projecting from the back of the cutter carrier 20. Brackets 24 also project from the carrier; in them are fixed set-screws 23 designed to engage the shaft-end and determine the inclination of the carrier 20 relatively to the shaft 13. The cutter 25 is slidably mounted in a recess in the carrier, setscrews being again used for retention purposes. The tube 26 is reciprocated by crank and connecting-rod from the pinion 3. A bracket 27 is secured to a cross-member 30 which is carried by two parallel rods 28 working in guide bushes 29. A second cross-member 30<1> connects the rods to the connecting-rod 31. The grinding roller 35 rotates in a bearing 38 and is adjustable therein by means of nuts 39, 39'. Disc-like members 40, 41 on the support of the bearing 38 and the rock-lever 43 are secured to each other by a bolt-and-slot arrangement permitting adjustment. In order to bring the grinder 35 into the required position relative to the cutter, it is reciprocated by a crank and connecting-rod drive from the pinion 5 to the rocker 43. The fulcrum 44 of the rocker is carried on a bearing- bracket 45 mounted in a slide 46 which may be replaced by a screw-threaded spindle 50 having a handle 52. The grinding roller 35 is not rotated positively but only by contact with the passing cutter.
Patent GB-997566-A (GB)
Title: Equipment for the introduction of aluminium or alloys thereof into steel melts
IPC: C21C7/06
Filed: 1964-05-21
Abstract: <PICT:0997566/C6-C7/1> A method of introducing refining aluminium into steel comprises placing a hollow aluminium cylinder 3 about the lowest section of a refractory clad ladle stopper.  The aluminium cylinder is made up of three sections a, b, and c, the upper end being urged, by a wedge 5, against a collar 4 provided on the cladding. Specification 997,565 is referred to.
Patent GB-576820-A (GB)
Title: Improvements in power transmission mechanism
IPC: F16H63/30
Filed: 1943-11-10
Abstract: 576,820. Variable-speed gearing HINDMARCH, T. Nov. 10, 1943, No. 20252/44. Divided out of Complete Specification of 566,029. [Class 80 (ii)] A variable speed and reverse gear box a has an output shaft c in alignment with an input shaft b and a layshaft shaft h parallel thereto driven by gears h<1>. Constantly meshing gears d, d<1>, i, e, e<1>, i<1>, on the layshaft and output shaft provide for forward and reverse driving. The layshaft gears are loosely mounted and have within them pressure fluid operated clutches f, f<1>, k to render them operative. The gears on the output shaft are fixed thereto. Alternatively the layshaft gears may be fixed and the clutches arranged within the gears on the output shaft. Reference has been directed by the Comptroller to Specification 22,443/09, [Class 80 (ii)].
Patent GB-1162509-A (GB)
Title: Reconstituted Tobacco Sheet
IPC: A24B15/12
Filed: 1968-04-30
Abstract: 1,162,509. Reconstituted tobacco. AMERICAN MACHINE & FOUNDRY CO. 30 April, 1968 [17 May, 1967], No. 20441/68. Heading A2C. In the manufacture of reconstituted tobacco, in order to reduce the darkening of the tobacco when it is exposed to heat, the tobacco is extracted with water and at least a portion of the polyphenols present in the resulting aqueous solution are chemically neutralized or are removed by precipitation with a chemical agent prior to recombining the aqueous solution with the extracted tobacco. Sodium sulphite may be used as a neutralizing agent, and heavy metal salts, such as lead or barium acetates, may be used as precipitants. In the neutralization method, an aqueous slurry is formed and the neutralizing agent is added direct to the slurry, whereas in the precipitation method the precipitating agent is added to the aqueous extract after its separation from the slurry and the extract is then centrifuged to remove the precipitate before recombining the extract and the extracted tobacco. The treated slurry is cooked under pressure prior to forming into a reconstituted tobacco sheet.
Patent GB-1108284-A (GB)
Title: Improvements in siloxane polymers
IPC: C08G77/50
Filed: 1965-05-14
Abstract: An ultraviolet light-absorbing compound comprising a resinous, cross-linked polymer having a plurality of cyclotetrasiloxane units joined together with <FORM:1108284/C3/1> linkages, with from 5 to 50% of the Si atoms of the polymer linked directly to radicals of the formula <FORM:1108284/C3/2> (derived from allyl cinnamate), can be made by reacting the cyclic tetramer (RHSiO)4 with the cyclic tetramer [R(CH2=CH)SiO]4, wherein R is a monovalent hydrocarbon radical free of aliphatic unsaturation, and allylcinnamate, e.g. at 80 DEG  to 120 DEG  C., and preferably in the presence of a Pt catalyst.  Examples are given describing this method of preparation. Uses: for coating wood and plastics; as an interlayer between or as a coating on glass; for incorporation in textile finishes and polishes; and for making sun-glass lenses.ALSO:Certain organosilicon polymers having ultraviolet light-absorbing properties (see Division C3) are used for coating wood, plastics steel and tin plate, and glass.
Patent GB-1423212-A (GB)
Title: Stock inlet for a paper-making machine
IPC: D21F1/02
Filed: 1973-04-30
Abstract: 1423212 Paper-making machines J M VOITH GmbH 30 April 1973 [2 May 1972] 20481/73 Heading D2A A stock inlet for a paper-making machine comprises a stock discharge nozzle fed by a plurality of parallel flow ducts 1, the ducts being of substantially rectangular cross-section and being separated by thin webs 3, the ducts being formed exclusively by prefabricated members 2 each having two thick flanges 4, 5 interconnected by one or more of the thin webs 3, at least the part of the web(s) adjacent the flanges being integrally formed in onepiece with the respective flange, and top and bottom support plates 6" to which the flanges 4, 5 are detachably connected, e.g. by bolts 6'. As shown each member 2 may be of I- section. Alternatively, as in Figs. 2 and 3 (not shown), each member may comprise two T- section parts welded together, perhaps with the interposition of a web part (13). The ends of the webs 3 adjacent the nozzle may be chamfered (Figs. 4 and 5-not shown) or serrated (Figs. 6 and 7-not shown) in order to combine the flow from the separate ducts evenly. Expansion joints can be put between the flanges of the members 2 to relieve thermal stresses.