baber/WOPTO huggingface dataset:
Patent GB-188682-A (GB)
Title: Improvements in or relating to magnetic clutches and the like
IPC: F16D27/06
Filed: 1921-05-13
Abstract: 188,682. Hall, J. W. May 13, 1921. Clutches, friction. - In electromagneticallyoperated plate friction clutches, one or more paramagnetic plates engaging in the Weston clutch manner are arranged between two electromagnetic coils. In the clutch shown the driving-member 1 carries a magnetic coil 42 and rods 6, on which slide an armature member 5, also carrying a coil 52, and plates 9 formed of rings of paramagnetic material separated by a perforated diamagnetic plate 10 of bronze or the like. Intermediate plates 82, in which the paramagnetic rings may be replaced by circular rows of plugs 8, slide on pins 31 carried by flanges 32 on the driven shaft 3. Preliminary contact between the plates may be effected by toggle-links 17 operated by electromagnets 18 or other means. For disengagement, the coils are fully excited in opposite directions, or the current in one coil may be gradually increased to the maximum. In a modification, one intermediate plate only is used. In the application to brakes, the member 1 is stationary. One or more clutches may be used in conjunction with gearing.
Patent GB-961468-A (GB)
Title: Production of acrylic and methacrylic acid
Inventor: GASSEN EDWARD JAMES
IPC: C07C57/055
Filed: 1962-04-10
Abstract: Acrylic or methacrylic acids are prepared from acrolein or methacrolein and/or a compound which gives rise to acrolein or methacrolein under the reaction conditions, by reacting them at elevated temperature in the vapour phase with molecular oxygen in the presence of arsenic or an arsenic oxide, over an oxidation catalyst comprising a molybdate of antimony, cobalt, or tin. Propylene and isobutene give rise to the acrolein and methacrolein respectively, and from 1 to 20% of olefines or aldehydes may be present in the feed and oxygen may be diluted with inert gases e.g. as in air, or with steam.  The arsenic in the catalyst may be by admixture, or by coprecipitation followed by thermal decomposition.ALSO:An oxidation catalyst comprising a molybdate of antimony, cobalt or tin, together with arsenic or arsenic oxide, is used for the preparation of acrylic or methacrylic acid by reacting with molecular oxygen at an elevated temperature in the vapour phase, acrolein or methacrolein and/or a compound which gives use to acrolein or methacrolein under the reaction conditions.  The catalyst may be prepared by admixture or by co-precipitation from mixed solutions of arsenic salt and metal molybdate, followed by thermal decomposition.  In examples; (1) aqueous solutions of cobalt nitrate, ammonium arsenate, and ammonium molybdate were mixed, ammonia added and the precipitate filtered dried, and heated in two stages at 400  DEG C. and at 600  DEG C. with graphite as a lubricant to give a Co: As ratio of 10:1, (2) cobalt malybdate as above was used and arsenious oxide introduced to the inlet gases (3) a tin molybdate catlayst prepared by dissolving tin in nitric acid followed by the addition of molybdenum trioxide, filtration, the addition of graphite on a two stage heating at 750 DEG C. and 1000  DEG C., was used with arsenic pentoxide and (4) antimony pentoxide and molybdenum trioxide, mixed pelleted and heat treated at 500  DEG C., were mechanically mixed with arsenic pentoxide.
Patent GB-561432-A (GB)
Title: Improvements in or relating to apparatus for the propulsion of ships
IPC: B63H23/00
Filed: 1942-09-30
Abstract: 561,432. Propelling ships. SULZER FRERES SOC. ANON. Sept. 30, 1942, No. 13713. Convention date, Oct. 30, 1941. [Class 114] To avoid dangerous resonance phenomena of torsional vibrations which are produced as soon as the number of periods of the variations of the force in the tangential pressure diagram of a multi-cylinder engine becomes equal to the number of the natural vibrations of the whole systems which occur at various critical speeds, termed critical speeds of the first, second or higher order, according as the system vibrates with one, two or more nodes, the propeller shaft 6 is driven from the engine 1, which is of the kind having six or more cylinders, by means of reduction gears 3, 4 positioned at B nearer to the propeller 5 than the usual position A of the reduction gearing.
Patent GB-1391907-A (GB)
Title: Method of and apparatus for moving a span or section of a bridge
IPC: E01D19/04
Filed: 1971-05-07
Abstract: 1391907 Appliances for moving loads REDPATH DORMAN LONG Ltd 24 March 1972 [7 May 1971] 13731/71 Heading B8B [Also in Division E1] Apparatus facilitating the movement of bridge spans, comprises a pair of endless belts 42 each passing around and in contact with a support shoe 40, the belt and the shoe presenting anti-frictive surfaces to each other such that the span, supported by the belt and shoe is movable by relative sliding between the belt and shoe. The shoes 40 are pivotally mounted in a frame which may be either mounted on the ground, whereby the span moves with the belts passing over the shoes, or mounted on the span, whereby the belt engages a smooth track on the ground for movement therealong. The frame comprises a pair of channel members between which the shoes are pivotally and adjustably mounted, and a fulcrum support for the frame, permitting pivoting of the frame about an axis parallel to the shoe pivot axes. Each shoe includes a groove in its upper surface, through which the belt 42 moves, the contact surface of which is faced with polytetrafluoroethylene or polished stainless steel and belt guides 44, 46 are provided at the ends of the grooves. The shoe contacting face of the belts are faced with polytetrafluoroethylene which may be reinforced with glass fibres. Rollers 48, 450 guide the belt at each end of the groove on each shoe. In the embodiment of Fig. 1 (not shown) a single belt passes around two aligned shoes.
Patent GB-548623-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B11/02
Filed: 1941-10-25
Abstract: 548,623. Centrifugal separators. STEVENS. A. H. (Sharples Corporation). Oct, 25, 1941, No. 13756. [Class 23] In a centrifugal separator for separating two liquids, circular weirs 27, 28 are provided over which are discharged the light and heavy liquids respectively ; the heavy liquid on its way to the weir 28 passes through a chamber 32 which has a larger diameter than the main chamber 29 of the separator. The head 22 of the rotor is provided with a number of slots or channels 30 communicating with the main chamber 29 and connected by drilled holes 31 with the chamber 32 of large diameter. The separated heavy liquid flows from this chamber through discharge passages 26 and over the weir 28. The weirs 27, 28 are detachable and diameters are chosen having regard to the specific gravities of the liquids, so that the face between the separated liquids lies within the drilled holes 31 and is thus of greater diameter than the maximum internal diameter of the main chamber 29. The feed and bearing arrangements of the lower end of the rotor may be of any desired type, but the type shown in Specification 330,158, [Class 23], is referred to.
Patent GB-716666-A (GB)
Title: Production of coated monocalcium phosphate and products containing the same
IPC: A21D2/02
Filed: 1952-05-30
Abstract: Coated monocalcium phosphate is produced by a process which comprises producing crystalline anhydrous monocalcium phosphate, coating the said crystals with a hot aqueous monoaluminium orthophosphate solution of such concentration that hydration of the anhydrous monocalcium orthophosphate does not occur, treating the coated compound with an oxide or hydroxide of calcium, magnesium or aluminium in such amount as to form a coating of dialuminium orthophosphate and a calcium, magnesium or aluminium hydrogen orthophosphate and heating the coated product in the presence of an inert atmosphere containing 3 to 30 per cent. by volume of water vapour to convert the di-aluminium ortho-phosphate to tetra-aluminium pyro-phosphate without substantially converting the monocalcium phosphate to the corresponding pyro-phosphate.  Proportions of alumina, and other constituents of the coating, other conditions of humidity and preferred temperatures are specified.  Particle sizes are also given; oversized particles may be crushed and recycled to the reaction or mixing step.  The production may be mixed with 0.5 to 2 per cent. of tricalcium phosphate and be a constituent of baking powder or self-raising flour.  Preparation of mono-aluminium orthophosphate from alumina and phosphoric acid is described.ALSO:A self-raising flour or baking powder comprises coated monocalcium phosphate prepared as indicated in Group III.
Patent GB-572734-A (GB)
Title: Adjustable mounting for shell firing and other guns for aircraft
IPC: F41A27/10
Filed: 1941-10-28
Abstract: 572,734. Hinges. MARTIN, J. and MARTIN-BAKER AIRCRAFT CO., Ltd. Oct. 28, 1941, No. 13831. [Class 65 (ii)] [Also in Group XXI] In an adjustable mounting for aircraft guns comprising front and rear supports, the front support is carried by a tubular housing connected between the supports to the aircraft by a joint affording limited angular universal adjustment of the housing and adapted to be locked in a selected setting whereby the gun may be removed for cleaning &c. and replaced without disturbing the setting. As shown, the front support comprises a part spherical number 7 held by a screwed radiused ring 10 against a radiused annular seating 8 in the front-end of a housing 4 and preferably formed with a cylindrical extension 11 to receive an enlargement 12 on the gun barrel 3 to act as a damper against the recoil spring 13. The ring 10 is locked in position by a spring-pressed plunger cooperating with notches in the edge of the housing and is slackened before adjusting the gun. The rear support 2 is formed with guides along which the gun can slide during recoil and affords limited angular adjustment about vertical and horizontal axes. The housing 4 is connected to a fixture 14 on a spar &c. of an aeroplane wing 6 by a joint comprising two rotatable rings 16, 17, with opposed inclined abutting faces clamped by bolts 19 between flanges 4a, 14a, bolts 24 with compression springs 25 being also provided to take the weight of the barrel and housing when the bolts 19 are slackened for rotating the rings to adjust the setting. The opposed faces of the rings and flanges may be radially serrated to provide a position lock. A slightly flexible fairing may enclose the bolts 24 and the fixture 14.
Patent GB-1102515-A (GB)
Title: Improvements in or relating to organic aluminates
IPC: C07F5/06
Filed: 1965-04-01
Abstract: Oxyalkylene or polyoxyalkylene aluminates of formula <FORM:1102515/C3/1> where x is 1-3, y is 0, 1 or 2 and x + y = 3 are prepared by reacting 1 mole of an aryl aluminate of formula [R6O]3-Al wherein R6 is aryl or substituted aryl with from 1 to 3 moles of the same or different oxyalkylene or polyoxyalkylene ethers of formula [RO(R1O)m- 1(CH2CH2O)m]H wherein R is a radical containing from 1 to 43 carbon atoms inclusive and is chosen from alkyl radicals, aryl radicals, alkylaryl radicals, arylmethyl radicals, alkylarylmethyl radicals, acyl radicals derived from monocarboxylic acids and any of the above radicals containing from 1 to 5 substituents inclusive chosen from halogen, nitro and cyano, R1 is a divalent residue of a vicinal epoxide containing from 2 to 12 carbon atoms inclusive, m is an integer of from 1 to 150 inclusive, n is an integer of from 1 to 150 inclusive and the sum of m - 1 and n is from 1 to 150, and removing the hydroxylic derivative of the aryl radical, displaced from the aryl aluminate, by vaporization under anhydrous conditions at temperatures from 110 DEG  C. to 300 DEG  C. and reduced pressures of 0.1 to 50 mm. inclusive.  The compounds where m is 2 to 150 and the sum of m - 1 and n is 2 to 150 are claimed per se.ALSO:Oxyalkylene or polyoxyalkylene aluminates of formula <FORM:1102515/C2/1> wherein x is 1 to 3, y is 0, 1 or 2 and x+y=3 are prepared by reacting 1 mole of an aryl aluminate of formula <FORM:1102515/C2/2> wherein R6 is aryl or substituted aryl with from 1 to 3 moles of the same or different oxyalkylene or polyoxyalkylene ethers of formula [RO(R1O)m- 1(CH2CH2O)m]H wherein R is a radical containing from 1 to 43 carbon atoms inclusive and is chosen from alkyl radicals, aryl radicals, alkylaryl radicals, arylmethyl radicals, alkylarylmethyl radicals, acyl radicals derived from monocarboxylic acids and any of the above radicals containing from 1 to 5 substituents inclusive chosen from halogen, nitro and cyano, R1 is a divalent residue of a vicinal epoxide containing from 2 to 12 carbon atoms inclusive, m is an integer of from 1 to 150 inclusive, n is an integer of from 1 to 150 inclusive and the sum of m - 1 and n is from 1 to 150, and removing the hydroxylic derivative of the aryl radical, displaced from the aryl aluminate, by vaporization under anhydrous conditions at temperatures from 110 DEG  to 300 DEG  C. and reduced pressures of 0.1 to 50 mm. inclusive. The compounds wherein m is 2 to 150 and the sum of m - 1 and n is 2 to 150 are claimed per se.
Patent GB-201305-A (GB)
Title: Improvements in railway vehicle brakes
IPC: B61H13/02
Filed: 1922-05-17
Abstract: 201,305. Cunningham, J., and Dickson & Mann, Ltd. May 17, 1922. Hand actuation; applied by springs; forcetransmitting mechanism.-Relates to improvements in the railway wagon brake mechanism described in Specification 144,793. A spring-influenced lever has a cam-wiper coacting with a cam on one of the actuating shafts so that when the brake is released the main spring 20 will not cause the hand levers to rise suddenly when its crank 13 passes the dead centre. The action of the spring-influenced lever on the cam also assists in the application of the brake. When the brakes are arranged to be actuated by fluid-pressure as well as by hand levers, a lost motion device is provided to prevent the hand levers being moved. The hand levers are arranged close to the wheels so as to be clear of dock hoists &c. Fig. 2 shows an arrangement in which power actuation is not provided for. The hand levers 11 actuate a rock-shaft 8 through rods 58, rockshafts 59, levers 60, 61 and rods 10. The brakes are actuated by the shaft 8 through a lever 13, toggles 14, 15, main spring 20, bar 17, automatic wear compensator 21, and rods 3 as in Specification 144,793. On one of the rock-shafts 59 is mounted a cam 39 contacting with a roller 62 on a lever 38 pivoted at 40, Fig. 6. A spring 41 is arranged to act on the lever 38 so that it opposes the action of the spring 20 when the brakes are being released, and assists the action of the hand levers when the brakes are being applied. Fig. 7 shows a modification in which the cam 39 is mounted on the rock-shaft 8. The crank 13 for operating the main spring 20 is integral with the cam 39. In this modification the toggles 14, 15 may be operated by a connection 56 to a vacuum cylinder piston, or by the hand levers. The toggles are connected by a rod 49 and crank 48 to a rock-shaft 46. A lever 51<a> is pivoted to a crank 54 on the rock-shaft at 53 and has a roller 55 engaging the shaft. When power is employed, the rod 56 turns the lever 51<a> about the point 57 and rocks the shaft to actuate the brakes through the connection 49 to the toggles 14, 15. When the hand-levers are used to rock the shaft 8, the lever 51a is rocked about the point 55 through the main-spring 20 to apply the brakes through the same connections 49, 14, 15. Fig. 8 shows a modified lost-motion device in which the rock-shaft 46 carrying the arm 48 connected with the toggle-operating rod 49 has tappets 51 adapted to be engaged by the pivoted links 47 by which the slide of the spring 20 is suspended.
Patent GB-1499966-A (GB)
Title: Hay stook disintegrating apparatus
IPC: B02C4/02
Filed: 1976-04-06
Abstract: 1499966 Cutting hay BLAIR Mfg CO 6 April 1976 [8 Aug 1975] 13908/76 Heading A4C Apparatus for cutting stooks of hay to lengths of 2-4 inches comprises a bed 10 with a conveyer 11 for delivering a stook 12 to a vertical array of rolls 14 which disintegrate the stook, the hay then being moved first one way and then the other way across the bed by respective augers 18, 20 before delivery by paddles 22 on auger 20 to a cutter roll 21, the cut hay being discharged through an outlet 35 by propellers 27 on one end of the cutter roll which form a blower. The rolls 14 have teeth 15 and roll 21 have teeth 24 arranged in slanting rows and which co-operate with baffle plates 25 to pass the hay to the outlet. An auger 26 reintroduces hay to roll 21 so that a number of cuts may be made.
Patent GB-1457492-A (GB)
Title: Hydraulic control vavle
IPC: F15B13/04
Filed: 1975-04-04
Abstract: 1457492 Valves DEERE & CO 4 April 1975 [4 April 1974] 13970/75 Heading F2V In a control valve 86 for actuating a pistoncylinder 54, a valve member 112 controls the flow between an inlet 30 and a work port 40 and a valve member 146 controls the flow between a work port 36 and a reservoir chamber 16, both valve members being slidable on a hollow valve stem 90 and biased into contact with its respective seat 114, 150. A piston 98 integral with the valve member 112 separates the inlet 30 from the closed chamber 108 apart from a restricted communication through the piston slot 106 and a gap in a split sealing ring 102. The chamber 108 communicates with the reservoir chamber 16 via the hollow stem 90 and a valve having a spring loaded closure member 160 actuated by an arm 166 on a rotary shaft 164. When the shaft 164 is operated so that closure member 160 opens communication between the chambers 16, 108 the pressure imbalance across the piston 98 causes it to move away from its seat to allow flow from the inlet to the work port 40 via check valve 118. The valve stem is also moved by the piston 98 to move the valve member 146 off its seat to communicate the work port 36 with the reservoir chamber 16. The amount of movement of piston 98 required before the valve member 146 is moved by the ring 154 on the stem 90 is adjusted by shims 96. An adjustable conical-headed screw 172 co-operates with the bore 156 in the stem 90 to throttle the communication between the chambers 108, 16 and thus determine the maximum open position of the valve. A valve sleeve 136 which is actuated by the difference in pressure between the work ports acts to throttle the flow to work port 40 prior to the valve member 146 opening, a restricted flow into the chamber 140 acting to clamp the movement of the valve member. A second similar valve 88 controls the flow of fluid from inlet 30 to the work port 36 and the flow from work port 40 to the reservoir chamber 16.
Patent GB-437309-A (GB)
Title: Improvements in or relating to combined electric switches and plug couplings
IPC: H01R13/707
Filed: 1934-05-09
Abstract: 437,309. Snap-action switches. WALSALL CONDUITS, Ltd., and PERKINS, E., Excelsior Works, West Bromwich, Staffordshire. May 9, 1934, No. 13980. [Class 38 (v)] [See also Group XXXVI] A switch associated with a wall socket fixture is operated by a rotatable boss 17, Fig. 2, that is turned by a projecting spindle 52, Fig. 3, attached to a knob 50 on the plug member 46. The earthing-pin 48 moves a spring- pressed catch 55 out of engagement with a notch 58 in the boss 17. The boss is connected to a two-bladed switch arm 22, Figs. 5, 7, by a roller 39 mounted eccentrically on the boss and co-operating with a forked lever 34 pivoted at 35 and having a lug 36 that engages a recess 37 in a bifurcated lever 26 pivoted on a pin 23 concentrically with the switch arm 22 and connected thereto by a snap action device comprising a rod 28 pivoted to the lever 26 at 30 and passing through a crosspiece 32 on the switch arm, a compression spring 33 being interposed between the crosspiece and a head 29 on the rod 28. An insulating plate 44 lies between the two fixed contacts 40.
Patent GB-1280076-A (GB)
Title: Mounting devices for modules in terminal junction systems
Inventor: STAUFFER LARRY RONALD
IPC: H05K7/02
Filed: 1970-03-23
Abstract: 1280076 Releasable fastenings AMP Inc 23 March 1970 [11 April 1969] 13988/70 Heading E2A [Also in Division H2] A mounting device for electrical connector assemblies 6, comprises a channel member 4 for receiving the assemblies and a retaining member 44 including a web portion 46 arranged within and attached to the channel member, the retaining member including a row of resilient spaced-apart latching arms 56 extending from one side of the web portion and away from the base of the channel member, each latching arm being adapted to engage releasably a co-operating part 70 (or shoulder as shown) of an electrical assembly when received in the channel member in a direction perpendicular to the base of the channel member, each latching arm being individually disengageable from its respective co-operating part of the respective connector assembly. In the construction shown one side wall 12 of the channel member is higher than the other side wall 10; the side wall 10 has an inwardly directed flange and the side wall 12 an inwardly directed part 16 these being engaged by tabs 58 of the member 44 to locate the member 44 in the channel member. The wall 12 extends outwardly above the part 16 and it terminates in an outwardly directed flange 18. The member 44 has a plurality of spaced apart arms 48 extending in a row from the opposite side of its base 46 from which the latching arms extend there being one arm 48 for each latching arm; each arm 48 has an inwardly directed part 50 which is engageable in a recess 54 in the electrical connector assembly to hold one side of the assembly in place the other side of the assembly being held by the latching arm which has an inwardly directed part 58 which is engageable with the part 70 of the assembly. Each latching arm also has a boss 62 which in use extends into a recess 68 of the assembly to prevent movement of the assembly longitudinally of the channel in conjunction with the arm 48. Slidably mounted on the upper edge portion of the side wall 12 is a locking bar 72 which is provided with a plurality of spaced apart bosses 76 one for each of the latching arms and which when engaged with the latching arms prevent movement of the arms out of the latching positions. The bar can be moved longitudinally to dispose the bosses between the latching arms to enable the arms to be moved. A modification is described in which the latching arms instead of being cranked to provide the part 58 are straight and are provided with an elongated slot; the arm is intended for use with an assembly which instead of having the shoulder 70 for engagement by the latching arm has a projection which can be received in the slot. Means can be provided in either construction for holding the locking bar either in its locking position or its releasing position.
Patent GB-1124884-A (GB)
Title: Improvements in and relating to transport systems for tunnel kiln trucks
IPC: B61J3/08
Filed: 1966-03-30
Abstract: 1,124,884. Hydraulically operable transport systems. O. K. JOHANSEN. 30 March, 1966 [31 March, 1965], No. 14015/66. Heading B7L. An hydraulically operable transport system for transport of tunnel kiln trucks outside a kiln comprises a floor-mounted draw-bar 4 reciprocable in the transport direction by a double-acting hydraulic piston-and-cylinder (not shown), and comprising an inverted channelsection iron or steel rail on which are welded cleats 3 engageable with pawls 2 pivoted in yokes 1 on the trucks, the inverted channelsection rail 4 overlying an iron or steel channel section rail 6 grouted into the floor of the track and supporting rollers 5 being freely disposed between the rails 4, 6. Each pawl 2 is suspended on a shaft 7 in the yoke 1 and comprises a weight 9 which maintains the rear face of the pawl vertical and further acts against the yoke 1 on the truck to prevent anticlockwise movement beyond that position. The pawl is thus rotated into an inoperative position during retraction of the draw-bar, and may be held in such a position by a dowel 8 in the yoke 1.