baber/WOPTO huggingface dataset:
Patent GB-1384700-A (GB)
Title: Dyestuff compositions
IPC: C09B1/515
Filed: 1971-11-02
Abstract: 1384700 Dyestuff compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 25 Sept 1972 [2 Nov 1971] 50834/71 Addition to 1284932 Heading C4P The invention comprises dyestuff compositions containing as the dyestuff a mixture of (a) a disperse anthraquinone dye free from acidic water-solubilizing groups and of formula where Z is H or an optionally substituted aliphatic or aryl radical; (b) at least one disperse dye of formula where X is OH or -NHY<SP>2</SP> and Y<SP>1</SP> and Y<SP>2</SP> each represent an optionally substituted aryl radical and (c) from 0-10% by weight based on the total weight of dyestuffs present of a yellow disperse dye and (d) optionally a diluent. The dye of the first formula above may contain a small' amount of a dyestuff of formula The dye of (b) above may be a mixture of dyes wherein X is OH or NHY<SP>1</SP>. The compositions may be prepared by mixing the dyes together in the required proportions optionally in the presence of an inert diluent, and give navy blue shades on polyester textile materials.
Patent GB-508589-A (GB)
Abstract: 508,589. Apparatus for sorting tally cards. COPELAND-CHATTERSON CO., Ltd., and MANN, A. R. Jan. 19, 1938, No. 1822. [Class 106 (i)] Cards having at their upper and lower edges holes which may be slotted out to the edges for manual sorting by means of a needle, are sorted in an appliance comprising a base 1 divided into sections, a removable tray 2 in one section 1b for receiving cards to be sorted, separator elements 5 which are mounted spaced apart in a second section 1c and are movable individually into the tray 2 to divide the cards into groups, means on the first section for assisting the correct insertion of the sorting needle 12 through the upper holes of the cards and of a retaining needle 13 through the lower holes of the cards, and means for holding the retaining needle in position whilst cards are lifted by the sorting needle. Each tally card 6, Fig. 10, has certain holes 8 slotted out to its top edge and all the non-corresponding holes 9 cut out to the bottom edge. The front section 1a of the base is for convenience in placing cards which have been sorted. The cards to be sorted are placed in the tray 2 and pushed towards one end by a slider 3. The rear section 1c has pairs of transverse walls 4 and between each pair slides a separator 5 consisting of a base 19 and two side walls. 18. Desired separators 5 are slid forward by their lugs 20 to separate the cards in tray 2 into convenient groups, each separator passing through a corresponding slot 23 in the rear wall 22 of tray 2 and having a spring 33 which catches in a recess 34. The sorting rod 12 is passed through a desired row of holes and slots in the top edges of the card; a plate 28 upstanding from the base 1 carrying a flange 29 with guide markings for use with rod 12. Retaining rod 13 is passed through the corresponding lower row of holes, also passing through one of the holes 29a in the plate 28 and under those separators 5 which have been advanced. To assist the rod 12 in lifting the cards not slotted out to the edge, a member 14a has hooks 15 of the same spacing as the separators 5. These hooks lift the rod 12 and cards not slotted out in the upper row corresponding to the position of rod 12 and all the other cards are held down since parts 19 and 29a hold the rod 13 down. The member 14a may be hollow to house the rods 12 and 13. To hold the tray 2 in position its right hand end, Fig. 1, is slid into recess 31, Fig. 11, of the base and its left end is held by two turn buttons 30.
Patent GB-1484179-A (GB)
Title: Helicopter rotor blade
IPC: B64C27/473
Filed: 1974-11-26
Abstract: 1484179 Helicopter rotor blades SOC NATIONALE INDUSTRIELLE AEROSPATIALE 26 Nov 1974 [30 Nov 1973] 51213/74 Heading B7W A helicopter rotor blade comprises, throughout its spanwise extent, a leading edge member 5 and a trailing edge member 6, both formed from bonded spanwise extending filaments, separated by a honeycomb or foamed polyurethane core 7 enclosed by a laminated fabric skin 8. The member 5 has chordwise portions 5b and 5c extending from a leading portion 5a and adjacent the root end of the blade these portions are separated to form portions 9 and 11 and 10a and 12a of a loop surrounding a pivot 14. The trailing edge member 6 is similarly separated to form other portions 10b and 12b of the loop, the portions 10a, 10b, being integral with portion 9 with portions 12a, 12b being integral with portion 11. The pivot 14 is bushed at 15 and is integral with a tapered metal fitting 13 formed by horizontal and vertical webs 16, 18, the cavities between the loop portions and the skin 8, and the fitting 13 being filled with a filler 21 capable of resisting compression and shear. Sheets of synthetic resin impregnated glass fabric 20 separate the loops from the metal fitting 13. The web 16 is formed with an arm 22 having a pivot 4 which may be connected to the rotor hub to prevent lag-lead movements, or connected to a lag-lead damper.
Patent GB-514023-A (GB)
Abstract: 514,023. Alkali silicates. GOSSLER H. Sept. 6, 1938, No. 26022. Convention date, Sept. 7, 1937. [Class 1 (iii)] [Also in.Group IV] Commercial water glass is converted to a form suitable for use in the preparation and thickening of textile printing pastes by evaporating off from one-third to one-half of the water contained therein after addition of sufficient solid caustic alkali to prevent separation of solids from the solution. The alkalinity of the product may be reduced by adding, while it is still hot, a metallic hydroxide such as aluminium or ferric hydroxide. The product may be mixed with known organic thickening agents.
Patent GB-1167194-A (GB)
Title: Filters for Gases.
IPC: F24F13/28
Filed: 1966-11-18
Abstract: 1,167,194. Gas filter. AMERICAN AIR FILTER CO. Inc. 18 Nov., 1966, No. 51875/66. Heading BIT. In a roll type air filter incorporating an electrostatic precipitator, ramps 32 extend from the loading bay to the roll spindle bearings 28 so that a filter roll can be rolled from the loading bay up the ramps to bearings 28. The filter material is drawn across the filtration area between vertical bars (6, 8) (Fig. I not shown).
Patent GB-1163963-A (GB)
Title: An Improved Pipe Joint
Inventor: MEIER-SCHENK ARTHUR
IPC: F16L59/14
Filed: 1966-11-21
Abstract: 1,163,963. Pipe joint. A. MEIER-SCHENK. 21 Nov., 1966 [8 Dec., 1965], No. 51963/66. Heading F2G. Penetration of moisture between a pipe having a synthetic resin jacket and a sand cement sleeve surrounding the pipe is prevented by the provision of a ring positioned on the pipe, the ring being of synthetic resin or rubber and having grooved or ribbed interior and exterior faces and encased by the sleeve. The arrangement permits relative displacement of the pipe and sleeve. As applied to a pipe joint, two insulated pipes each comprising a pipe member 1, 3 an outer sleeve 4 and insulation 5 have theparts 1, 3 welded together at 6, preformed insulation 7, 8 covering the weld being held in place by tape 10. Rings 14, ribbed at 15, 16 are positioned on the pipe and the sand-cement sleeve 12 formed therearound. The Specification also describes an arrangement, employing a single ring 14, for a pipe passing through a wall aperture.
Patent GB-1082988-A (GB)
Title: Moulds
Inventor: MARR HARRY SIDNEY
IPC: B22D11/055
Filed: 1964-12-22
Abstract: 1,082,988. Moulds. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Jan. 7, 1966 [Dec. 22, 1964], No. 52014/64. Heading B3F. A mould for continuous casting is provided with cooling means in the mould wall 1 which comprises passages 3 positioned in close proximity to the mould inner casting face 2. In each passage there is located a restrictor rod member 4 which is shaped so that the greater portion of its periphery is in abutment with the co-operating surface of the passage wall. The restrictor member provides a channel 5 for the passage of coolant, parallel to the casting force 2 of the mould. Conduits 6, 7 in the mould body communicate with passages 8 in the restrictor to permit circulation of coolant from an external source. The restrictors 4 may be secured in open-ended mould passages by nuts and washers or by tapered screws and O rings. In alternative embodiments the restrictor members are arranged to communicate at their ends with a common chamber in the mould wall, or the restrictor member ends may be provided with a necked portion forming an annular passage for the flow of coolant from the conduits 6, 7 to the cooling channel 5.
Patent GB-1443250-A (GB)
Title: Machines having load-supporting booms
IPC: E02F9/18
Filed: 1974-12-13
Abstract: 1443250 Shovel excavators J I CASE CO 13 Dec 1974 [22 April 1974] 53933/74 Heading E1F A machine having a load-supporting boom, e.g. a back hoe excavator, comprises a rotatable platform 14 with a boom 16 pivotally supported thereon for movement about a horizontal pivot 18, a counterweight 30 having a recess 44 therein and a permanent pin 100 extending across the recess 44, means 90 mounted on the platform 14 for engaging the pin 100, a bearing hanger 38 on the platform 11 to be received in the recess 44 and having an opening 40 therein, the counterweight 30 having a bore 46 extending from a side wall 48 thereof across the recess 44, which bore has an enlarged portion 50 adjacent the side wall 48 and a reduced portion 52 extending across the recess, and a removable pin 52 received in the bore 50 and extending through the opening 40 in the hanger 38 for supporting the counterweight on the platform 14, the removable pin 52 including a pin portion 56 which fits the reduced portion 52 of the bore 46 and a handle portion 58 of smaller diameter than the portion 52 and connected to said portion. The bore 46 and the pin 52 are located on the counterweight 30 between the platform 14 and the centre of gravity of the counterweight so that the counterweight will tend towards the platform when supported by the pin. A releasable fastening device 60 may be provided for holding the counterweight in a fixed position with respect to the platform. Adjustable positions means 80 may be provided on the platform to facilitate alignment of the bore 46 and the opening when the counterweight is presented to the platform.
Patent GB-1406896-A (GB)
Title: Production of cross-linked pvc articles
IPC: H01B3/44
Filed: 1972-11-24
Abstract: 1406896 Cross-linking graft polymer/vinyl chloride polymer compositions SOLVAY ET CIE SA 24 Nov 1972 [30 Nov 1971] 54377/72 Heading C3G An article made from a composition containing a resin mixture of at least one vinyl chloride polymer and at least one graft polymer of vinyl chloride grafted on to an ethylene trunk polymer, the ungrafted vinyl chloride polymer content in the resin mixture being between 5 and 60% by weight, is cross-linked by heating it to a temperature of 140‹ to 200‹ C. and/or subjecting it to ionizing irradiation. When the composition is cross-linked by heating alone, it includes a cross-linking agent, e.g. an organic peroxide alone or together with a di- or polyfunctional compound, which is incorporated before or during manufacture of the article. Such compositions are claimed. Examples are given in which blends of polyethylene grafted with vinyl chloride, polyvinyl chloride and stabilizers are milled at 150‹ to 180‹ C., cooled, mixed with 2,5-dimethyl-2,5- di-(tert.butyl peroxy)-hexane, or -hexyne-3, and triallyl cyanurate, and milled at 110‹ C. and cross-linked by pressing at 180‹ C. In other examples, the graft polymer/polyvinyl chloride/ stabilizer blend is subjected, after milling, to irradiation from an electron accelerator.
Patent GB-1378295-A (GB)
Title: Metal detecting apparatus
IPC: G01V3/10
Filed: 1971-11-24
Abstract: 1378295 Electromagnetic metal detectors H BOEKELS [trading as DR HANS BOEKELS & CO] 24 Nov 1971 [30 Nov 1970] 54584/71 Heading G1N The sensitivity of an electromagnetic metal detector is monitored continuously by generating pulses which cause the main electromagnetic field of the detector to be modulated and indicating whether the resultant output of the detector receiver exceeds a predetermined limit. A receiver coil 3 is positioned in the electromagnetic field of transmitter coil 2 and the presence in the field of metallic bodies in goods conveyed by a conveyer, buried in the ground, or hidden on persons causes disturbances in the field. The resultant signal at the output of receiver 4 is applied via threshold switch 5 and integrating circuit delay element 6 to trigger monostable circuit 7 and activate relay 8. In order to monitor the sensitivity of the receiver a train of short duration pulses is applied continuously to switch 10 from generator 9 so that each pulse causes the test coil 12 to be shorted and the receiver coil 3 to detect field perturbations due thereto. If the sensitivity of the detector is insufficient the pulses at the output of receiver 4 are of insufficient amplitude to switch the switch 5 and no test pulses are applied to delay circuit 6 and bi-stable circuits 13 and 15. Thus only one input 13a of bi-stable 13 is energized from generator 9 and it changes state to provide an output at 13(c). The next pulse in the pulse train from generator 9 enables AND gate 14 to be activated and a signal to be applied to bi-stable 15 to change its state. The output signal from 15(c) switches stage 16 to energize fault relay 17. If the sensitivity of the receiver is sufficient test pulses appear at the output of receiver 4 which although of sufficient amplitude to activate threshold switch 5 are of insufficient duration to cause monostable circuit 7 to operate relay 8 due to the delay 6. Since the test pulses are also applied to bi-stables 13 and 15 these remain in their unswitched states and relay 17 remains unenergized.
Patent GB-1118529-A (GB)
Title: Improvements in or relating to the manufacture of soap tablets
Inventor: ROSSITER HANS
IPC: C11D17/04
Filed: 1966-12-06
Abstract: A soap tablet comprises a core of soap irreversibly encapsulated in a shell of water-permeable, water resistant, compressible, cellular plastics material such as polyvinyl chloride, a polyester or a polyether.  A folded sheet of cellular plastics material, or two opposed sheets, may be wrapped around the soap core and the sheet(s) welded together by electrodes having a shape appropriate to the soap tablet.  Alternatively, a "pocket" of the material may be formed having three sealed edges, the soap core being inserted through the open edge and the said edge sealed.  Adhesive may also be employed to fasten the edges.
Patent GB-1387357-A (GB)
Title: Liquid level control valve
IPC: F16K31/18
Filed: 1972-11-29
Abstract: 1387357 Valves M SHARMAN 27 Nov 1973 [29 Nov 1972] 55064/72 Heading F2V In a float-operated valve for maintaining a constant level of liquid in a container the float operates a safety cut-off pinch-cock if the liquid level rises above a predetermined level. The float 21 rotates a cylindrical cam member 18 having a transverse bore 19 which engages the bent end of a pin 16 to which is connected a valve member 15, controlling the outlet of a rubber of plastics tube 14, loaded to the closed position by a spring 17. The safety cut-off pinch-cock comprises the tube 14 which is collapsed by a plunger 23, loaded by a spring 26, when the cam 18 engages the bent end of a pin 29 which engages in a groove 24 in the plunger when the plunger is withdrawn by a ring 28 attached to it. In a modified arrangement the valve member 15 is replaced by a lever operated by the cam 18 which acts on the side of the tube 14 to control the flow. In an alternative embodiment, Fig. 2 (not shown), the float lever (37) is connected to the ends of a valve operating stem (36) and a pin (45) which engages the groove in the pinch-cock plunger. In normal operation the lever pivots on the end of the pin (45) to operate the valve but should the liquid level continue to rise when the valve is seated the lever then pivots about the end of the valve stem to withdraw the pin 45 thus operating the pinch-cock. The valve includes an adapter (47) and clamping ring (48) for mounting the valve.
Patent GB-1132600-A (GB)
Title: Flavouring agent
IPC: A23L27/20
Filed: 1965-12-29
Abstract: 1,132,600. 2,3-Dihydrofuran derivatives. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH, and F. H. FIRMENICH, [trading as FIRMENICH & CIE1]. 29 Dec., 1965 [31 Dec., 1964], No. 55137/65. Heading C2C. [Also in Division A2] Compounds of the formula where R is hydrogen or an alkyl group of 1 or 2 carbon atoms, the latter compounds being novel, or precursors of such a compound where R is hydrogen, for example the lower fatty acid esters, such as the formate and novel acetate, which are readily saponifiable to the free compound, are employed to provide a strawberry flavour. 2,5 - Dimethyl - 4 - hydroxy - 2,3 - dihydrofuran-3-one is prepared by heating a mixture of rhamnose monohydrate, piperidine and acetic acid, in absolute ethanol. The methyl ether is obtained by treating a solution of 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3- one in methanol with diazomethane. The acetate of 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one is obtained by reaction with acetic anhydride in pyridine.
Patent GB-1441248-A (GB)
Title: Methods of recording and/or play back
IPC: G11B15/43
Filed: 1972-12-02
Abstract: 1441248 Magnetic tape recording/playback PLESSEY CO Ltd 19 Nov 1973 [2 Dec 1972] 55751/72 Heading G5R A magnetic tape recording and/or playback apparatus has a magnetic transducer head assembly 15 located so that magnetic tape 10 drawn from supply spool 11 by a capstan 13 and pinch wheel 14 is drawn from the capstan across the head assembly 15 by a take-up spool 9 driven via a clutch 6,7,8. Wow and flutter is said to be minimised because the tape 10 passes assembly 15 under substantially constant tension. The clutch comprises an arm 6 hinged at 7 and actuated by a solenoid 8 to engage a spindle 5 with a drive pulley 3 driven via a belt 4 and motor 2. Tape spools 9, 11 may form part of a cassette, and the head assembly 15 is used for record, erase and playback and may comprise separate heads. The apparatus may be incorporated in a cassette tape recorder of the type dislosed in Specification 1,429,316.
Patent GB-1202416-A (GB)
Title: Chemical milling process
Inventor: WHITE ROBERT MUNDY
IPC: C23F1/00
Filed: 1967-12-08
Abstract: 1,202,416. Etching. EASTMAN KODAK CO. 8 Dec., 1967 [8 Dec., 1966], No. 55884/67. Heading B6J. An article, e.g. metal, plastic or glass, having patterns of mist on the top and bottom surfaces, is moved longitudinally between upper and lower etchant sprays and etched to near breakthrough, removed from the etchant, placed on a mesh screen and etched again until breakthrough occurs. The screen supporting the etched-through articles is then placed in a tray and again passed below upper sprays, the lower sprays being omitted, so that the tray becomes filled with etchant to submerge the articles just below the surface, and then the bath is agitated by the sprays in the vicinity of the articles, this final etchant improving the previously chevronshaped lateral profile by rounding off the point.
Patent GB-1378004-A (GB)
Title: Molten steel extrusion
IPC: B22D11/00
Filed: 1971-12-02
Abstract: 1378004 Continuous casting MONSANTO CO 2 Dec 1971 [3 Dec 1970] 56049/71 Heading B3F Molten steel 11 is extruded through an orifice 12, from a crucible assembly 10 of refractory metal oxide, e.g. Al 2 O 3  or BeO, and the reversible chemical action, which occurs between carbon in the steel and the crucible material produces CO and tends either to erode refractory oxide at the orifice 12 or deposit it there; by regulating the partial pressure of the CO, e.g. by purging with Ar, equilibrium between the erosion and deposition is maintained. The CO pressure may be changed to increase or decrease the orifice size. The Ar may be passed across the steel surface as at 15, or bubbled through the metal. The steel stream 14, e.g. from an orifice 12 of less than 200 microns, and which may contain Al to assist stabilization, passes into an oxidizing atmosphere such as air, CO 2  or CO in a chamber 13.
Patent GB-1336624-A (GB)
Title: Method and apparatus for making measurements on the equilibrium  state of a disperse system
IPC: G01N27/04
Filed: 1971-12-03
Abstract: 1336624 Electro-physical measurements HERFURTH GmbH and H DOEVENSPECK 3 Dec 1971 [5 Dec 1970] 56326/71 Heading GIN Measurements on the equilibrium state of a disperse system are made by discharging a capacitor C2 through the disperse medium via electrodes 12a, 12b to obtain a pulse indicative of the impedance of the disperse system between the electrodes. Thyratron RO1 is switched to a conducting state by control element 18 to enable C2 to charge. When the voltage across C2 reaches about twice that across filter capacitor C1 thyratron RO1 becomes non-conducting and control element 18 causes thyratron RO2 to fire and discharge capacitor C2 through electrodes 12a, 12b. An aperiodic exponential pulse 16 is produced across resistor R4 which after amplification at 13 is applied to Schmitt trigger 14. The square wave output 17 of the trigger 14 has a duration dependent upon the duration for which pulse 16 exceeds the threshold of the Schmitt trigger 14. Timer 15 converts the pulse length into a digital signal which may be used to control a treatment process acting on the disperse system.
Patent GB-1108729-A (GB)
Title: Conveying system
IPC: A24C1/38
Filed: 1966-12-20
Abstract: 1,108,729. Endless conveyers. AMERICAN MACHINE & FOUNDRY CO. 20 Dec., 1966 [13 Jan., 1966], No. 56952/66. Heading B8A. Apparatus for feeding cigars to an endless conveyer belt 15 comprises a plurality of pneumatic ducts 11 supplying said cigars to aligned shoots vertically disposed above the endless belt. Each shoot comprises a pair of opposed vertical walls 28, each formed of one arm of a pair of inverted U-shaped members 27 mounted to a framework 21 at the end opposite the ducts 11 and wherein the free ends of the walls 29 diverge to form a mouth M to receive the cigars. The ends of the shoots opposite the ducts 11 are closed by wall members 30 having a resilient low density impact surface 34 and are adjustable mounted on the framework 21, whereby the length of the shoot may be varied. The outlet of each shoot is controlled by a pair of rollers 35 with an outer surface 37 of resilient low density material and are spaced apart a distance less than the thickness of the cigars. The rollers are adjustably mounted in a cantilever manner to vary their spacing S and the rollers of each pair are driven in opposed direction by a pulley and belt arrangement 39, 48, 49. A pivotal gate 51 is mounted below the roller 35 located on that side of the shoot in the direction of travel of the conveyer belt to guide the cigars into the pockets 16 of the endless belt. In an alternative embodiment (Fig. 5, not shown), the vertical walls (128) of each shoot are formed by the arms of a U-shaped member (127) slidably mounted on U-shaped bars (129) extending between the ends of the framework (121). The bight of the U-shaped member (127) forms the end wall (130) and the length of the shoot is varied by sliding said U- shaped member (127) along the bars (129) and retaining the same in the desired position by lock rings (131). The rollers (135) are supported at each end by the framework (121), but only one of a pair is adjustable whereby to vary the spacing (SS).