baber/WOPTO huggingface dataset:
Patent GB-721916-A (GB)
Title: Improvements in or relating to process for making periclase
Inventor: AUSTIN LESLIE WENTWORTH
Filed: 1952-07-01
Abstract: Periclase, containing not more than 2 per cent. calcia, is obtained by firing a mixture of a magnesium compound (which, if fired by itself, would form periclase containing at least 95 per cent. magnesia) with up to 2 per cent. of chromium material as Cr2O3, and up to 5 per cent. silica having a specific surface of at least 6,000 sq. cms. per gram.  Specified magnesium compounds are magnesite, brucite, active magnesia, hydroxide, carbonate, basic carbonate, bicarbonate, and the alcoholates. Specifications 370,013, [Group V], 482,340, 583,009, [Group V], 698,797, 711,907 and 711,908 are referred to.ALSO:Periclase containing not more than 2 per cent calcia is obtained by firing a mixture of a magnesium compound (which if fired by itself would form periclase containing at least 95 per cent magnesia) with up to 2 per cent of chromium material as Cr2O3, and up to 5 per cent of silica having a specific surface of at least 6,000 sq. cms. per gram.  Specified magnesium compounds are magnesite, brucite, active magnesia, magnesium hydroxide (obtained by reacting a magnesium salt solution e.g. brine, with an alkali), magnesium carbonate or bicarbonate, the basic carbonate and the alcoholates, e.g. magnesium methylate, and they can be used singly or in admixture. Chromium metal or its salts, e.g. the flouride or chromates or chrome ore provide the chromium constituent, and the silica can be diatomaceous earth, silica fume, fired silica gel, or condensates from the oxidation of volatile silicon halides.  The components can be dry mixed in powder form, but the chromium is preferably added as a solution in water or alcohol.  Specifications 370,013, 482,340, 583,009, 698,797, 711,907, and 711,908 are referred to.
Patent GB-456168-A (GB)
Title: Edge runner mills
IPC: B02C15/14
Filed: 1935-06-07
Abstract: 456,168. Edge -runner mills. COX, H. E., 131, City Road, Bristol. June 7, 1935, No. 16544. [Class 59] In an edge-runner mill in which the roll is driven by pin-tooth gears during rotation around the pan, the toothed wheel on the roll is positively constrained during its up-and-down movement relatively to the other gear-wheel in a path parallel to the axis of the latter wheel to maintain constant depth of tooth engagement and angular relationship. As shown, the head 1 is attached to the driving shaft 3 and the roller 4 is mounted on an arm 10 pivoted at 5 to a short link 7, the pivot 8 of which is carried by the head 1. A pin wheel 12 attached to the roller gears with a wheel 19 fixed to the non-rotatable pan 14, the shaft 6 of the roller sliding in guides or slots 11 in the casing whereby the gear-wheels 19, 12 are maintained in true central alignment and constant angular relationship during the up-and-down movement of the roll. The thrust of the roll may be taken up by a curved pad on the link 10 bearing on the wall of the casing 1.
Patent GB-796694-A (GB)
Title: Improvements in or relating to roller felting machines
IPC: D06C17/02
Filed: 1955-06-09
Abstract: 796,694. Felting. BYWATER, Ltd., W., and O'BYRNE, B. Jan. 26, 1956 [June 9, 1955], No. 16547/55. Classes 42 (1) and 42 (2). In a roller felting machine of the kind used for felting, or for fulling felt or cloth, having two sets of rollers, each roller of at least one set having an axial reciprocating or circumferential oscillating movement, or both, in addition to the normal continuous rotation, one set of rollers 21, which are vertically adjustable, are mounted in groups on side frame members 19 which are supported on platforms 16 arranged to be raised and lowered by fluidoperated mechanism or other means. As shown, the felting machine comprises upper rollers 6, which are given rotary and axiallyreciprocating motion, and lower rollers 21. Platforms 16 are suspended by links 19 from bell cranks 12 connected to compressed air cylinders 18. A common valve controls supply of air to cylinders 18, whereby rollers 21 can be raised and lowered towards and away from rollers 6. The groups of rollers 21 are arranged on separate pairs of members 19, platforms 16 at the adjacent ends of adjacent roller groups being associated with a common bell-crank. The bell-crank spindles 11 pass, where necessary, through slots 23 in members 19. Rollers 21 are driven by a common chain 22 from one roller driven by a chain 24 from a motor 25 mounted below one member 19.
Patent GB-113250-A (GB)
Title: Improvements in or relating to Closets.
Inventor: DUBASH PESHOTON SORABJI GOOLBA
IPC: A47K13/00
Filed: 1917-11-12
Abstract: 113,250. Dubash, P. S. G. Nov. 12,1917. Non-contact closets; seats; supporting person.-The seat a of a closet is provided with hinged footplates b so that the user can crouch, or by turning the footplates back, sit on the seat. Supporting arms c, preferably spring- mounted, may be provided. The arms c may form part of standards, on a member fixed between which the pan f rests.
Patent GB-760805-A (GB)
Title: Improvements in and relating to mobile cranes
Inventor: VINCENT JOHN WILLIAM
IPC: B66C23/36
Filed: 1953-06-16
Abstract: 760,805. Mobile jib cranes. ENGINEERING SUPPLIES (CLYDESIDE), Ltd. June 16, 1954 [June 16, 1953], No. 16591/53. Class 78 (4). The slewing motion and the luffing and hoisting drums of a mobile crane are driven through three manuallycontrolled clutches and chain-andsprocket drives 14 ... 16, 14a ... 16a, 14b ... 16b, driven through a horizontal shaft 13, a vertical shaft 10 on the slewing axis, and a rearwardly extending power take-off 7 driven from the vehicle engine 6. The transmission may include the reversing gear of the vehicle, but in the construction illustrated a separate reversing gear is mounted at 13 on the slewing table 2a. It is driven through bevel gearing 11 from the shaft 10 which is joined by a universal coupling 9 to a shaft 8a connected by bevel gearing 8 to the propeller shaft 7 which is driven through the usual gear-box 1a from the engine 6. The manually-operated clutches 14d, 15c, 16c respectively drive a pinion 14e meshing with the slewing ring 2, a worm driving the joisting drum 5, and a worm driving the luffing drum 4. The clutches are controlled through linkages from hand levers 17f, 18c, 19c or alternatively by single acting spring biased pneumatic or hydraulic cylinders supplied with operating fluid from an accumulator 22 and pump 21 driven by the engine 6 through conduits passing through the interior of the shafts 8a, 10 under the control of valves 23, 24, 25. The reversing gear 13 is controlled by a linkage from a hand lever 20. Either a mechanical or a fluid-pressure control system may be used alone.
Patent GB-966169-A (GB)
Title: Improvements in or relating to quick release tow hooks
Inventor: MUNDAY WILLIAM GEORGE
IPC: B63B21/56
Filed: 1963-04-26
Abstract: 966,169. Hooks. BROWN LENNOX & CO. Ltd. April 26, 1963, No. 16620/63. Addition to 950,589. Heading F2H. The hook of the parent Specification is modified so that the two-armed hook member 3 is pivoted at 4, the arm 5 having an arcuate shoulder 6 for engagement with a hook-retaining roller 7, mounted on a spindle 8 between two radius arms 9 pivotally secured to side plates 1, 2 at 10. One arm 9 forms part of a bell-crank lever 11, the other arm 12 of which carries a roller 13 which co-operates with a slot 14 in a release lever 15 pivoted to plate 1 at 16. Lever 15 is actuated by an operating lever 17 pivoted to lever 15 at 18 and a latch 19 is also actuated by lever 17 controlled by a Bowden cable 26, In operation, hook member 3 is held against release by roller 7, Fig. 1. Cable 26 is pulled, lever 17 pivots about pivot 18 and releases latch 19 from pin 25. Face 28 on lever 17 engages face 29 on lever 15 and the latter is pivoted about pivot 16. Roller 13 moves out of the short leg into the long leg of slot 14 and roller 7 releases shoulder 6 of hook member 3 which then pivots about pivot 4, the forces acting on the hook member assisting this release. The hook is pivoted at 31 to a coupling 32 having legs 34, a guard 33 is provided for the release mechanism and a buffer pad 35 covered with resilient material is provided.
Patent GB-1180127-A (GB)
Title: Gear Tooth Form Analyzer.
IPC: G01B5/20
Filed: 1967-04-12
Abstract: 1,180,127. Testing gear teeth. FORD MOTOR CO. Ltd. April 12, 1967 [April 25, 1966], No. 16674/67. Heading G1M. Apparatus for checking gear tooth forms of bevel gears which are adapted to be rotated in mesh about mutually perpendicular axes comprise a first rotatable spindle 14 for supporting a first gear 10, a second rotatable spindle 20 for supporting a second gear (12, Fig. 1, not shown), or a simulated gear tooth portion 90, a friction drive disc 58 fixed to and rotatable with the spindle 14, a slide base 62 frictionally engaged with the disc 58, a probe 84 mounted on a carriage 76 and apparatus for detecting relative movement between the probe and the carriage. The detecting apparatus indicates variations from a constant velocity ratio between the gears and is set to give a zero reading at the correct velocity ratio, the reading deviating from zero when the velocity ratio departs from the correct value. The simulated gear tooth portion 90 is in the form of a gear tooth which is adjustable to a position where it corresponds to a gear tooth of the gear which it represents. The tooth portion 90 is mounted on a cylindrical portion 22 and thence to a common base 30 which is slidably mounted on a platform 32. The platform 32 is mounted on a table 48 which table is movable in the direction of arrow 54. Movement of the slide base 62 rotates the disc 58 and pinion gear 10 and simultaneously causes movement of extension 74 and the carriage 76 by means of sine bar 72. An arm like member 80 is fixed on to the spindle 20 and has a surface 82 which bears against the movable probe 84 of an electrical differential motion detecting apparatus. When the slide base 62 rotates spindle 14 and the teeth of the two gears are meshed correctly, the pinion gear rotates the tooth 88 of the gear (12) and cam-surface 82 causing the probe to move to the right at a predetermined rate and simultaneously the carriage 76 is moved laterally by the sine bar 72. If the meshing teeth are conjugate the carriage 76 and housing 86 move at the same speed and there is then no relative movement. If there is conjugate error relative movement will occur.
Patent GB-317934-A (GB)
Title: Improvements in or relating to carding engines
IPC: D01G15/36
Filed: 1928-06-08
Abstract: 317,934. Dunlop Cotton Mills, Ltd., Andrew, T. E., Howard & Bullough, Ltd., Wilson, W., Townson, F. R., Renold, Ltd., H., Barratt. J. R., and Hoyle, H. June 8, 1928. Carding - engines. -A driving arrangement for a carding- engine comprises a separate motor transmitting motion to the main cylinder shaft through a chain and a centrifugal clutch or other resilient coupling. The motor 1, Fig. 2, controlled by a suitable switch 2 transmits motion to the cylinder shaft 6 through a chain 3 and a centrifugal &c. clutch 4. The sprocket 5 is loose on the shaft 6, being secured thereto bv a dog clutch 8, keyed to the shaft. and operated by a lever 20, which may be connected to the front plate. The sprocket 5 carries grooved pulleys 9, 12 to operate the various parts of the carding-ungine. The front plate 17, Fig. 4, when opened operates a link 27 and slides a plate 26 which is provided with an inclined slot to engage an extension 24 on the lever 20. The clutch control can be dissociated from the front plate by moving the pivot pin connecting the plate to the link 27 from its normal position 42 into a second hole 43. The normal drive for carding is through the chain 3 and clutch 8. For stripping the clutch 8 is opened, the stripping- brushes are driven from the pulley 9 and the cylinder and doffer are rotated manually. For fast grinding the clutch 8 is closed and the motor reversed by the switch 2. The barrow pinion is lowered and the doffer driven by a belt from the cylinder shaft. For slow grinding the clutch 8 is opened, the doffer is driven through the usual gearing by a crossed rope from the pulley 12, and the cylinder is driven from the doffer.
Patent GB-1455981-A (GB)
Title: O-triazolyl-phosphoric -phosphonic- acid esters and ester-amides and their use as insecticides and acaricides
IPC: C07D249/12
Filed: 1975-04-23
Abstract: 1455981 Phosphorus-containing 1,2,4-[triazole derivatives and intermediates therefor BAYER AG 23 April 1975 [16 May 197]4 16836/75 Headings C2P and C2C The invention comprises compounds of the formula in which R is C 1 -C 6  alkyl, R<SP>1</SP> is alkyl, alkoxy, monoalkylamino or dialkylamino each with up to 6 carbon atoms, or is phenyl, R<SP>11</SP> is cyano C 1 -C 4  alkyl or C 2 -C 6  alkenyl or where R<SP>1</SP> is alkylamino may also be C 1 -C 4  alkyl and R<SP>111</SP> is C 1 -C 4  alkyl. They may be obtained by reacting a halide (RO)(R<SP>1</SP>)P(O)Hal where Hal is halogen with a triazolyl derivative in the presence of an acid acceptor or in the form of its alkali metal-, alkaline earth metal- or ammonium salt. The products have insecticidal and acaricidal properties and are also effective against pests of stored products and against animal ectoparasites. They may be used as active ingredients in conventional pesticidal compositions. The compound is prepared by reacting methylthiosemicarbazide and pyrocarbonic acid diethyl ester and is cyclized by heating with sodium methylate in methanol to form the compound (III) which is then reacted with dimethyl sulphate in the presence of KOH and water to form the compound  The compounds are obtained in a manner analogous to that used for compound III. The compound is obtained by reacting compound III with 2- cyanoethyl bromide in the presence of sodium methylate and the compounds are obtained analogously by reaction with allyl bromide and 1-bromo-butene-(2) respectively. The compound is obtained by reacting the compound (X) with allyl bromide (in the presence of NaOCH 3 ) and the compound is obtained by reacting compound X with chloroacetonitrile in the presence of K 2 CO 3 .
Patent GB-1215876-A (GB)
Title: Improvements in plastics cladding frames for the external cladding of carrier frames, especially window frames
Inventor: BRAND HERMANN
IPC: E06B3/58
Filed: 1968-04-08
Abstract: 1,215,876. Cladding frames for windows &c. H. BRAND. 8 April, 1968 [7 April, 1967], No. 16874/68. Heading E1J. A P.V.C. plastics cladding frame for the external cladding of a metal or wood carrier window frame, comprises lengths of extended profiles containing a cavity 14 closed or substantially closed with drain holes behind the outer weather face with (Figs. 2 and 3) or without (Fig. 1) rabbets on the longitudinal sides, as required and having two spaced inwardly directed lateral tongues 13 adapted to be clamped down on the planar bearing surface of the carrier frame 12 by means of a olamping stud consisting of an annular slidable member 2 with inwardly directed flanges 6 and downwardly inclined external flanges 8, arranged to bear upon the tongues 13 and fixed to the carrier frame by a securing member 1 having annular flange 4 and web 3, the flange 4 bearing upon the flanges 6 when the member 1 is screwed down on the bearing surface of the carrier frame 12, the bore 9 in the member 2 allowing relative movement between the members 1 and 2 and the space between tongues 13 and member 2 allowing relative movement 'between the members 2 and 13 due to varying temperatures and the differences in expansion coefficients of the different materials. As shown an open chamber 15 may be provided behind the closed chamber 14 and grooves 17 are provided for packing material. The cladding forms stops on the carrier frame for the glazing.
Patent GB-314202-A (GB)
Title: Improvements in or relating to slicing machines
IPC: B26D7/02
Filed: 1928-06-12
Abstract: 314,202. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). June 12, 1928. Cutting slices in succession.-In a substance clamp of the kind having a clamping-member mounted on a single upright, the clamping- member is pivoted on a support slidable on the upright and provided with two automatic clutchdevices co-operating with the upright and clamping-member, one clutch-device holding the support in position and the other clutch-device holding the clamping-member in the required angular position after it has been pressed into contact with the meat &c. In the clamp shown in the Figure, a clamping-member 3, consisting of a hollow bar provided with a serrated part 4, is pivoted to a support 7 consisting of two spaced plates provided with rollers 11, a block 8, and a pin 10 engaging an upright 2. A clutch-pawl 12, pivoted at 16 and urged by a spring 15 into engagement with the upright, locks the support against upwards movement and exerts a braking action to resist downward movement of the support. A clutch-ring 13 for holding the clamping-member rests in a recess 21 in the support, and is urged by a spring 22 into engagement with a pin 14 on the clamping-member. To permit of the clamping-bar and support being raised, the pawl and ring are releasable by means of a hand-lever 17 connected to a link 18 for rocking the pawl, a stud 23 on the pawl being adapted to depress the ring. To clamp a piece of meat &c. on the feed-table 1, the clamping-bar is pressed downwards into engagement with the meat, the pawl and ring giving during the downward movement and automatically becoming operative on release of the clamping-bar. To prevent the support from turning on the upright, the upright may have a flat or key engaging the support, or the support may have an arm embracing a second upright and provided with a spring-pressed block engaging that upright. Specification 138,121 is referred to.
Patent GB-423707-A (GB)
Title: Improvements in weighing machines
IPC: G01G1/24
Filed: 1934-06-08
Abstract: 423,707. Weighing-apparatus. WENDENBURG, E., (trading as METZNER, GEB.), Annaberg, Erzebirge, Germany. June 8, 1934, No. 16994. Convention date, June 9, 1933. [Class 143] Compound-lever apparatus.-A platform weighing-machine comprises a sliding- poise beam 25 extending in the longitudinal direction of the machine, a platform lever 2, a plurality of intermediate levers 10, 19 adapted to reduce the load on the poise beam, knife-edges for supporting the platform lever, poise beam and intermediate levers, and knife-edges for transmitting the load imposed on the platform lever to the poise beam, the knife-edges above the platform lever being all positioned in a common vertical plane, for example, the central vertical plane of symmetry of the machine. Relieving and locking mechanism.-The platform may be locked in inoperative position by means of a locking lever 26 engageable with catches 28 on the platform and operated by means of a handle 27.
Patent GB-646892-A (GB)
Title: Device for adjusting the relative angular position of two members of recording or other apparatus
IPC: G01D15/24
Filed: 1948-06-24
Abstract: 646,892. Linkwood; coupling rotary elements. FOXBORO CO. June 24, 1948, No. 17037. Convention date, June 24, 1947. [Classes 80(ii) and 80(iii)] [Also in Group XIX]  Mechanism for angularly adjusting two parts of an apparatus normally movable as a unit comprises a gear segment and a lever and means for effecting relative angular adjustment therebetween provided by a worm rotatably held in a journal in the lever and flexed outwardly by its threaded engagement with the teeth of the gear segment, a collar on the worm holding the latter against axial movement. The gear segment 23 is fixed to a stud 24 and upon which is pivoted the driven lever 22 which is formed with ears 27 forming bearing for a flexible worm 26 which resiliently forces the stud 24 in a V-notch in the lever 22. The flexing of the worm also forces a collar 29 thereon into engagement with one of the ears 27 to prevent axial movement between the worm and segment so that manual rotation of the worm causes relative movement between the segment 23 and the lever 22. A tongue 28 is cut out in the lever 22 and bent back against the segment 23, clearing the worm to press the segment 23 resiliently against the lever 22.
Patent GB-1110122-A (GB)
Title: Improved method of and means for producing and developing electrical images on surfaces
IPC: G03G5/147
Filed: 1965-04-22
Abstract: 1,110,122. Electro-photography. COMMONWEALTH OF AUSTRALIA. April 22, 1965 [April 23, 1964], No.17129/65. Heading G2H. Developed photographic images are formed on a surface by allowing localized charges to be dissipated (e.g. by dark adaption), imagewise exposing to form image-forming electrical fields thereon, and developing these fields by applying particulate marking means from an electrically insulating carrier liquid, there being maintained on the surface during development a thin layer of a material which is absorbed, adsorbed or chemisorbed by the surface and which extends the image-forming fields by transmitting the charges from the surface to a higher level above the surface. The surface may be that of a layer of photoconductive particles in a binder, of metal (e.g. Ag, Pb or Zn) or of Se. The field-extending layer may be 0À1 to 1 Á thick and may consist of a liquid hydrocarbon, ketone, aldehyde, acid or ester applied before or after exposure by deposition from a solution by evaporation of solvent or by application to the surface followed by removal of excess liquid by a roller. The surface may optionally be uniformly electrostatically charged before exposure, and/or the developed image rinsed with carrier liquid.
Patent GB-1176840-A (GB)
Title: Improvements in or relating to Reciprocating Pump Spraying Devices.
Inventor: YUNG CHOW KWOK
IPC: F04B53/10
Filed: 1967-04-14
Abstract: 1,176,840. Reciprocating pumps. KWOK YUNG CHOW. April 14, 1967, No. 17159/67. Heading F1A. A spray pump comprises a piston 4 connected by a rod 9 to an eccentric pin on a gear 10 meshing with a gear 11 on a motor 12. The piston 4 covers and uncovers an inlet provided with a suction valve 16 and a filter and discharges through a valve 14 and a groove in an element 15.
Patent GB-663974-A (GB)
Title: Improvements in or relating to instrument recording pens
IPC: G01D15/16
Filed: 1949-06-29
Abstract: 663,974. Recording-apparatus. CAMBRIDGE INSTRUMENT CO., Ltd., SANDERSON, L. G., and MARSH, M. C. May 4, 1950 [June 29, 1949], No. 17170/49. Class 106 (iv). In apparatus for obtaining multiple records by connecting a pen-operating mechanism to several different measuring elements in turn, different coloured records are produced by incorporating in a pen head a a plurality of fixed points g for engaging a chart i successively after the head has been turned intermittently to present a new point to a corresponding pad e of a multicoloured ink pad unit d also turned intermittently. The head a is geared by bevelwheels b, c to the unit d which is held in position by a spring catch f. A registering device h is provided and the points g preferably have shoulders for compressing the ink pads e. Preferably, when one pen is in recording position, to avoid restraint, none of the others is in contact with its ink pad.
Patent GB-561877-A (GB)
Title: Improvements in or relating to calcium pantothenate and methods of preparing same
IPC: C07C233/46
Filed: 1942-12-03
Abstract: Calcium pantothenate is prepared by reacting metallic calcium with b -alanine and a -hydroxy-b b -dimethyl-g -butyrolactone in an alcoholic medium.  A large number of hydroxy compounds are specified as suitable solvents, they include aliphatic, aromatic and heterocyclic alcohols such as the monohydroxy alcohols methanol isopropanol and butanol, the polyhydroxy aliphatic alcohols such as ethylene glycol, glycerine, and propylene glycol, ether alcohols such as cellosolve and ethylene glycol monomethyl ether, carbitols such as diethylene glycol monomethyl ether, alicyclic alcohols such as cyclopentanol and methyl alcohol and other alcohols such as benzyl alcohol, and furfurol.  Three examples are given in each of which b -alanine is first treated with metallic calcium and the product reacted with a -hydroxy-b b -dimethyl-g -butyrolactone, the solvents being respectively methanol, propanol and n-butanol.