baber/WOPTO huggingface dataset:
Patent GB-1310461-A (GB)
Title: Polyester polymerization compositions
IPC: C08G63/58
Filed: 1971-04-27
Abstract: 1310461 Resin-fibre composites GENERAL TIRE & RUBBER CO 27 April 1971 [24 Nov 1970] 11703/71 Heading D1R [Also in Division C3] Glass fibre mats silane sized are impregnated and bonded with a polymerizable composition free of unreactive solvent and capable of polymerizing upon addition of a free radical polymerization catalyst, e.g. benzoyl peroxide, dicumyl peroxide or tertiary butyl hydroperoxide into a solid thermoset resin and comprising (A) at least one unsaturated polyester having an average molecular weight of about 1,000-25,000 and an average of about 6-110 double bond unsaturations per molecule in the main chain at least 50% of the double bond unsaturations being moleate unsaturations and (B) at least one liquid unsaturated monomeric ester in which the polyester is soluble and which is triallyl cyanurate or isocyanurate, vinyl acetate or an aromatic ester of the formula in which Ar is an aryl, aralkyl or alkaryl group containing 6-12 carbon atoms, R 1  is hydrogen or R 2  is hydrogen or methyl and n is 0 or 1, e.g. 4-methylvinyl benzoate, 2,4-dimethyl vinyl benzoate, 2- or 5-vinyl naphthoate, diallyl phthalate or isophthalate or vinyl p-hexyl benzoate, the monomeric ester being incapable of appreciable copolymerization with maleic anhydride at temperatures below 100C in the absence of a free radical catalyst, and produced by reacting together maleic anhydride with an alkylene oxide containing 2-18 carbon atoms dissolved in the liquid unsaturated monomeric ester at 108-100C in the presence of a double metal cyanide complex catalyst comprising a metal cation and a complex of a transition metal with a plurality of cyanide liquids. The alkylene oxide may be ethylene, 1,2-propylene, 1,2-butene, 1,2-hexen, 1,2-dodecane, isobutylene, 1,2-pentene, 1,2-pentadecene, 1,2-isopentene, 1,2-heptene, 1,2-isoheptene or 1,2-octene oxide, butadiene or isoprene monoxide, oxetane or 3,3-dimethyl, 3,allyl-3-methyl, 3-vinyl-3-methyl or 3-butyl-3-decene oxetane. The reaction mixture may also contain ethylene, propylene, diethylene or dipropylene glycol, 1,4-butanediol, 1,2,6-hexane triol, pentaerythritol, adipic, succinic, 4-chloroadipic, 1,2,6- hexane triol, pentaerythritol, adipic, succinic, 4-chloroadipic, fumaric, maleic, pimelic, suberic, azelaic, malonic, glutaric or polyazelaic acid, 8-hydroxy 1,2- naphthalene dicarboxylic acid, or phthalic, succinic, 3,4-dichlorophthalic, tetrahydrophthalic, chloredic, 2,3 dimethyl maleic, 4,5-dimethyl phthalic, 2-phenylethyl maleic or 2-tolyl maleic anhydride. The catalyst may be zinc hexa cyano cobaltate, chromate (III), ferrate (III) or ferrate (II) or nickel (II) hexacyanoferrate (II). The free radical polymerization catalyst may be added to the composition prior to impregnation of the glass fibre mat. The impregnated webs may be hot moulded into shaped products.
Patent GB-122393-A (GB)
Title: Improvements in and relating to Submarine Salvage.
Inventor: VITO JOHN ANTHONY DE
IPC: B63C7/06
Filed: 1918-07-17
Abstract: 122,393. Vito, J. A. de. Jan. 15, 1918, [Convention date]. Sunken ships, raising.-Pontoons 1 are connected to each other by pivoted arms 31 beyond the bow and stern of the sunken vessel and are moved together to positions on opposite sides of the sunken vessel a. The pontoons carry series of jaws 5, which are closed towards each other, so as to engage the bottom of the vessel a, by the partial rotation of the pontoons. To effect this rotation, links 35 are pivoted at one end on the arms 31 and at the other on a pin 39 which is mounted on the piston-rod 49 of a fluid-pressure cylinder 41 carried on the shaft 33 to which the arms 31 are pivoted. The admission of pressure fluid to the cylinder 41 is controlled from surface salvage vessels, and when the pistonrod has been driven outwardly from the cylinder to close the jaws under the vessel a, they are locked in this position by spring pawls 59 engaging a rack 45 on the piston-rod. The pontoons are preferably moved obliquely, as shown in Figs. 17, 18, and 19, during the lowering and raising operation, and this may be effected by controlling the admission and expulsion of water into and from the compartments into which the pontoons are divided, so as to vary their buoyancy, or by suitably operating lifting tackle 81 connected with the pontoons. In each case the obliquity is controlled from the surface of the water. The buoyancy of the pontoons may be controlled by air compressors carried by the salvage vessels B, and compressed air may be employed for operating the link 35 to close the jaws, which may be arranged so that if any one of them is obstructed it may be released, so that the movement of approach of the other jaws is not interfered with.
Patent GB-1307571-A (GB)
Title: Cable clamp
IPC: H02G7/02
Filed: 1970-03-11
Abstract: 1307571 Clamps ANDERSON ELECTRIC CORP 11 March 1970 [11 March 1969] 11747/70 Heading E2B A cable clamp comprises an elongate body 1 having a lengthwise groove 7 for receiving the lower side of a suspended cable 9 tensioned with a selected force F 2 ; an elongate keeper 15 having a second lengthwise groove 17 whose major axis is coplanar with the major axis of the first groove for application to the upper side of said cable, the lengthwise profile of at least one of said grooves being at least in part convex towards the other groove for deformation of the cable when clamped in place between the body and keeper; means 21, 23 for clamping the body and keeper to compress, deform and hold said cable therebetween with a total clamping force F 1 ; the lengthwise profiles of the grooves being such that under said forces F 1  and F 2  there will be produced along the clamped length of the cable material compressive and tensile stresses S 1  and S 2  respectively which when combined according to the formula S 3 =S 1 +S 2  will produce throughout the clamped length of the cable a value of shear stress S 3  which does not substantially exceed one-half the tensile stress produced by the selected force F 2  in the cable outside the clamped length and which is substantially constant along the entire clamped length of the cable. As shown in Fig. 4 the clamp is a suspension clamp which is symmetrical about its centre cross sectioned plane the clamp being supported in use by a bolt 5 which passes between the legs of the body above the cable; the groove of the keeper has the convex lengthwise profile, the groove of the body having a central section which lengthwise is straight with curved end sections to provide lead-in portions of the groove, the sections following the catenary shapes of the cable when suspended between pairs of said clamps or adjacent towers. The groove 7 is arcuate as shown in cross section, the arc extending over less than a semicircle and the body has walls spaced further apart than the edges of the groove which extend upwardly and provide eyes for the reception of the bolt 5. The groove 17 in the keeper is also arcuate in cross section extending over less than a semicircle. A dead-end clamp for supporting the end portion of the cable is shown in Fig. 13 and this has a body 33 with a groove for engaging the lower side of the cable which longitudinally is straight and which is of arcuate shape in cross section similar to the groove of the suspension clamp. The keeper 47 for engaging the upper side of the cable has a groove with a curved longitudinal profile conforming to the formula, extending from one end this being followed by a groove which is straight longitudinally; the groove is also arcuate in cross section as previously described. The keeper and body are held together by U- bolts 49 and nuts 51. The body has extensions 35 for securing the body by means of a cross pin 37 to an insulator.
Patent GB-1422536-A (GB)
Title: Unstretched polyethylene terephthalate yarn in continuous stretching and false twist texturizing processes
IPC: D02G1/02
Filed: 1973-03-12
Abstract: 1422536 Stretching and texturizing polyester filaments HOECHST AG 12 March 1973 [11 March 1972] 11775/73 Heading B5B [Also in Division D1] A continuous process for stretching and texturizing filaments of a polyester comprising structural units derivable from terephthalic acid and ethylene glycol comprises feeding to a stretching and false twisting device, and winding up the so texturized yarns, pre-oriented filaments having a natural stretching ratio in the range of 1 : 2À7 to 1 : 1À1. Such filaments have correspondingly a sound velocity in the range of 1420 to 3000 m./sec., a double refraction in the range of 0À015 to 0À125, and a shrinking tension in the range of 12 to 300 mm./dtex. The filaments may have been prepared by spinning from the melt with such a draw-off rate to give the above properties. Fig. 1 shows a suitable apparatus, stretching being effected between the roller sets 2 and 4 and false twisting by device 6. In another form, false twisting and stretching may be effected simultaneously by omitting roller set 2, and employing appropriate relative speeds of roller sets 4 and 7.
Patent GB-1532515-A (GB)
Title: Method for producing cobalt-phosphorus particles
IPC: B22F3/00
Filed: 1976-03-24
Abstract: 1532515 Producing Co-P particles INTERNATIONAL BUSINESS MACHINES CORP 24 March 1976 [30 April 1975] 11809/76 Heading C7D  Finely divided amorphous magnetic Co-P alloy particles of up to 300A diameter with average size of about 150A are produced by an oxidation reduction reaction. The reaction is carried out in a solution comprising a salt promoting reducible cobalt cations, a salt providing hydroxyl ions as a reducing agent, a non complexing base providing OH anions and a source of reducible palladium cations. The solution is maintained at 15 to 35C and excludes cobalt cation complexing agents and is not subject to external magnetic fields. The coercivity of the resultant Co-P particles is dependent on the palladium ion concentration in the solution and the particles may be incorporated in a polyurethane binder to form a magnetic recording medium.
Patent GB-347468-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04N5/06
Filed: 1930-04-14
Abstract: 347,468. Synchronous movements. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. April 14, 1930, No. 11825. Convention date, April 13, 1929. [Class 40 (iii).] Synchronizing signals are transmitted by using, as a carrier frequency, the slot frequency of an electric commutator or other motor 7. The slot frequency is filtered out from the armature current by a transformer 9, or by a resistance or choke in combination with a condenser (Figs. 1b and 2b, not shown), and transmitted to a line or used to modulate a high-frequency carrier current. The synchronizing signals are produced by a contact disc coupled to the motor and periodically short-circuiting the slot-frequency current. In copying-telegraphy the contact disc or other switch operates once in each revolution of the drum for start-stop synchronization. According to a modification, a relay excited by a control frequency, independent of the motor, controls the motor and also modulates the slot frequency to produce the synchronizing signals (Fig. 3, not shown).
Patent GB-134174-A (GB)
Title: Improved Stop Motion for Doubling Frames.
Inventor: STOTT WILLIAM
IPC: D01H13/16
Filed: 1919-05-12
Abstract: 134,174. Stott, W. May 12, 1919. Stop-apparatus, non-automatic; anti-ballooning arrangements.-In doubling-frames in which the bobbin in ring frames, or the flyer in flyer frames, is driven by a cone clutch, and handoperated means is provided to separate the parts of the clutch and to lift the top roller, an arrangement is provided whereby a Rabbeth or self-contained spindle is permitted to rotate after the bobbin or flyer-carrying spindle has been stopped. The handle operating the stop-device serves as an antiballooning plate. The bobbin B in a ring frame is mounted on the driven self-contained spindle A and is driven through a cone clutch a, b. A sliding rod F carries at its upper end a bracket e in which the top roller E' is mounted, and at its lower end an arm G adapted to engage and lift the clutch part b. The rod F is raised by a handle K pivoted in a bracket on the rod and engaging by a part k an incline m on a fixed bracket. In a flyer frame, the flyer is carried by a spindle clutched by cone parts, such as a, b, to a self-contained driven spindle.
Patent GB-961322-A (GB)
Title: Device for folding paper box board blank
Inventor: BLUMER HANS
IPC: B31B50/48
Filed: 1961-04-04
Abstract: 961,322. Making boxes. STEIGER A.G. LITHOGRAPHIE DRUCKEREI CARTONNAGEFABRIK. July 4, 1962 [April 4, 1961], No. 11882/61. Heading B5D. A machine for folding paper board blanks comprises a forming die beneath a ram 11 and forming head 14, which folds the walls of the blank perpendicular to the base, a pair of folding elements 13 pivotally mounted in the die and operated by a solenoid 12, and means for causing the ram to dwell for a period of time between the elements 13. The blank has a base and four upstanding walls with corner flaps joined to the walls and flaps on two opposed walls to embrace the corner flaps and lock the walls in planes perpendicular to the plane of the base. In operation the blank 16 is placed on the die and operates a switch to start the motor and cause the ram 11 to descend, and the forming head 14 engage and fold the blank between the bending bars 10. A rod 17 and plate 18 (Fig. 2) locate the blank between the elements 13, a timer switch is operated to stop the motor for a period of time and energize the solenoid 12 so that elements 13 are rotated by means of a rod 22 and tapes 21 to engage and fold the flaps into locking engagement with the corner flaps. When the time switch de-energizes the solenoid, spring means 23 pulls the elements 13 clear of the box, the ram moves upwardly and the rod 17 is restrained to strip the box from the die. In another embodiment, Fig. 2, the elements 13 are mounted on a pivot shaft 25 with a pinion 26 on each shaft meshing with a rack 27. Four corner plates 15 are provided to engage the corners of the base portion of the blank and have a screw-threaded part in mesh with a screw in the ram to move them inwardly to be clear of the folding elements 13. The ram 11 is provided with a rack engaged with a pinion on a shaft connected to the motor and also connected to a second shaft with a cam plate having lobes engaging switches controlling the sequence of operations. A device, Fig. 3 (not shown), for prefolding the blank 16 before it reaches the die comprising blade members positioned either side of and below the head 14, may be attached to pillars 29 (Fig. 2) and connected to the head by a tension spring (not shown).
Patent GB-1537229-A (GB)
Title: Scaffolding clamps
IPC: E04G7/24
Filed: 1976-07-21
Abstract: 1537229 Scaffold clamp G K N MILLS BUILDING SERVICES Ltd 21 July 1976 [28 June 1975] 12002/78 Divided out of 1535326 Heading E2B In a pivoted jaw scaffolding clamp, the pivot pin 70 is located in a slot 69 so that the clamp can accommodate, two different sizes of scaffold tubes, the pivot pin being retained in its appropriate position Fig. 1 or Fig. 2 e.g. by one limb 72 of a parallelarmed hinge member 71, the pivot pin 70 forming the other arm.
Patent GB-1218301-A (GB)
Title: Method of making secondary holograms
IPC: G03H1/26
Filed: 1969-03-06
Abstract: 1,218,301. Holography. INTERNATIONAL BUSINESS MACHINES CORP. March 6, 1969 [March13, 1968], No.12032/69. HeadingG2J. A method of making a secondary hologram comprises forming a first hologram 10 of an object, reconstructing image bearing wavefronts from the first hologram, interfering the reconstructed wavefronts with a reference beam 18, and recording the interference pattern on a medium 20 located in the Fourier Transform plane associated with the medium plane 16 of one image (e. g. Virtual Image 14) of the object to form the secondary hologram, the recording medium being exposed a plurality of times while effecting relative movement between the medium 20 in the Transform Plane and the exposing system. The reference beam may be a point laser source. The first hologram may be a multiplexed hologram or an integral photograph. On reconstruction these give rise to a grid effect which is not located in the medium plane 16 and therefore has a different Fourier Transform plane to the image of the object being used. Thus the multi-exposure smears out the grid effect on the secondary hologram. The recording medium is mounted on means 26, 28 for movement in either the X or Y direction or a combination of both. Alternatively a lens may be used to form the secondary hologram in which case the virtual image is located in the object plane of the lens and the recording medium in its transform plane. The reference beam need not then originate from the medium plane. The real image of the object may be used in place of the virtual image.
Patent GB-763180-A (GB)
Title: Improvements in or relating to preparation of m- and p-diisopropylbenzene
IPC: C07C5/27
Filed: 1954-04-26
Abstract: A diisopropylbenzene, including mixtures of the isomers thereof, is converted into a mixture of m- and p-diisopropylbenzenes from which the m-diisopropylbenzene is separable in a substantially pure state by distillation, by contacting the diisopropylbenzene with 0.1 to 2.0 mols. per cent based on the reaction mixture of aluminium chloride at a temperature of 65-115 DEG  C. until the mixture is isomerized and is substantially free from o-diisopropylbenzene.  After removal of the catalyst by treatment with mineral acid or caustic the reaction mixture may be fractionally distilled to separate m-diisopropylbenzene from the benzene, cumene, p-diisopropylbenzene, triisopropylbenzene and tetraisopropylbenzene.  Specification 763,179 is referred to.
Patent GB-822973-A (GB)
Title: New herbicidal compositions
Inventor: LORD JOHN GILBERT
IPC: C07C51/41
Filed: 1957-04-12
Abstract: The potassium salt of alpha-(4-chloro-2-methylphenoxy) propionic acid is prepared by reacting alpha - (4 - chloro - 2 - methylphenoxy) propionic acid and aqueous potassium hydroxide, heating for one hour, partially drying separated solid, suspending in acetone and evaporating to dryness and finally drying in vacuo.ALSO:A weed killing composition in solid or liquid form comprises as active ingredient alpha-(4-chloro-2-methylphenoxy) propionic acid in the form of its potassium salt preferably application of at least 32% W/V calculated free acid.
Patent GB-1375910-A (GB)
Title: Handling of flexible sacks bags and like containers
IPC: B65B43/34
Filed: 1973-06-13
Abstract: 1375910 Apparatus for opening bags REED INTERNATIONAL Ltd 13 June 1973 [15 March 1972] 12078/72 Heading B8C Apparatus for opening the mouth of a sack or bag formed of non-woven material comprises a pair of suction devices 2, 3 arranged to be applied to opposite sides of a sack or bag S at or adjacent its mouth and both movable to open the mouth by drawing the opposite sides apart, and spreader means 9 arranged to be automatically inserted in the mouth of the sack or bag S when the latter has been opened sufficiently by the suction devices 2, 3 and thereafter to move in concert with the suction devices to assist in opening the mouth of the sack or bag the spreader means being freely mounted for spreading movement. As shown, the suction devices comprise pairs of suction cups 5-7 mounted on a flexible plate 8 and movable by jacks 4. The spreader means 9 comprises a pair of plates mounted on arms 10 fixed to shaft 11 which are slidable on plates 13 pivotably supported at 14, 14 on a frame 1, the arrangement being such that as the pairs of suction cups 5-7 are moved apart by the jacks 4, abutments 16 engage members 17 on the arms 10 to swing the plates 13 outwardly as the shafts are moved downwardly by jacks 15 and the spreader plates enter the mouth of the bag S. A filling spout 18 is moved into the open mouth of the bag by a control arm 19 and a pivoted arm 21 senses the presence of the bag at the spout 18. The apparatus may form part of a bag filling and sealing apparatus according to Specification 1,224,317.
Patent GB-576996-A (GB)
Title: Improvements in or relating to filter presses
IPC: B01D25/19
Filed: 1944-06-26
Abstract: 576,996. Filter presses. BLUMENFELD, R. June 26, 1944, No. 12093. [Class 46] In a filter press comprising plates and cloths pressed together by a loose filter head the pressure exerted by a central member such as a screw to close the press is applied at two or more points at or near the periphery of the filter head through pivotal mountings on the head. In the construction shown in Figs. 1 and 3, arms D are pivotally mounted in lugs E at the sides of the filter head B, and the arms at their outer ends are adapted to engage recesses in a dial F mounted on the-end of the rod C which transmits pressure to the press. In modifications four arms are provided which are pivoted at the four corners of the loose filter head or midway along the sides. In a further modification shown in Fig. 4, two pairs of arms D are pivoted at the corners of the head B, one pair being adjusted to engage the upper part of a lever G and the other part to engage the lower part. The lever is pivotally mounted on the end of the rod C. In another construction the pressure of the rod is transmitted through V-shaped arms pivoted on spindles which are mounted in bearings at the corners of the filter head.
Patent GB-668249-A (GB)
Title: Handle grips
Inventor: LAMKIN ELVER BERNARD
IPC: A63B49/08
Filed: 1950-05-16
Abstract: 668,249. Hand-tool &c. handles. LAMKIN LEATHER CO. May 16, 1950, No. 12195/50. Class 61 (i). [Also in Group XV] A hand-grip for handles of implements comprises a strip 8 of leather wound in a close spiral and, before application, bevelled off on its under edges 14 after which the edges are burnished to cause them to curl down to give a plane undersurface and curved upper edges 16 which form a spiral groove, closely-spaced transverse partial cuts 20 being made on the top surface. Longitudinal grooves 18 may be formed by rolls at the edges of the undersurface to improve the grip of an adhesive.
Patent GB-667969-A (GB)
Title: High temperature castable refractories
IPC: C04B35/42
Filed: 1949-05-06
Abstract: 667,969. Chrome - alumina refractory. MORGAN CRUCIBLE CO., Ltd. (Babcock & Wilcox Co. of America). May 6, 1949. No. 12196/49. Class 22. A refractory comprising chrome ore, corundum of a corundum forming material, and a pure calcium aluminate cement. Plastic fire clay may also be present, the refractories having the following range of composition. Chrome ore 50-90 per cent, corundum material 5-25 per cent, calcium aluminate cement 5-20 per cent. plastic fire or ball clay 0-5 per cent. Ingredients are mixed dry and water, e.g. 10-15 per cent by weight, added to give the required consistency. The cement may be 3 Cao, 5 Al 2 O 3  or 5 Cao, 3 Al 2 O 3 .
Patent GB-439276-A (GB)
Title: Improvements in optical colour-matching apparatus
IPC: G01J4/02
Filed: 1935-04-23
Abstract: 439,276. Colorimeters. NAGEL, W., 26, Merianstrasse, Freiburg, Breisgau, Germany. April 23, 1935, No. 12227. Convention date, April 21, 1934. [Class 97 (i)] In apparatus for estimating the colour of a solution &c. by matching it with a comparison colour, the comparison colour is obtained by passing light through a polarizer and an analyzer between which is disposed a plate of doubly-refracting material which can be adjusted about an axis at right-angles to the light beam. Light from a single source is received by two mirrors h<1>, h<2>, and one of the reflected beams passes through a container d<2> for the test solution &c. The other beam passes through a polarizer a and a rotatable analyzer b, the plate c of quartz &c., being disposed between them and being angularly adjustable by means of a screw having a graduated head s<1>. The two beams are received by a prism e by which they are directed into a single eyepiece f.