baber/WOPTO huggingface dataset:
Patent GB-183833-A (GB)
Title: Improvements in cylinder and piston heads of internal combustion engines
IPC: F02B3/06
Filed: 1922-07-25
Abstract: 183,833. Worthington Pump & Machinery Corporation, (Assignees of Lucke, C. E.). July 25, 1921, [Convention date]. Pistons; pistons, cooling. - In a water-cooled piston for an internal-combustion engine, the crown D' is made of a thin sheet of wrought metal, reinforced by thin wrought metal bracing member, such as the perforated tubes P<1>, p<2>, P<3>, which are spaced by the members Q, Q<1>.
Patent GB-1529046-A (GB)
Title: Polyether polyureides
IPC: C08G65/32
Filed: 1977-05-16
Abstract: Novel polyether polyureides containing polyoxyalkylene connected to the ureide units are prepared by reacting polyoxyalkylene containing a terminal primary amino group with a compound which forms ureide groups at temperatures in the range from 50 - 200 DEG C in a molar ratio of about 1 mol of urea per terminal primary amino group. The compounds are excellent additives for epoxy resins.
Patent GB-787863-A (GB)
Title: An indexing and clamping mechanism for a turret of a machine tool
IPC: B23Q16/10
Filed: 1955-07-15
Abstract: 787,863. Lathe details. SOC. ANON. DES ANCIENS ETABLISSEMENTS C. BERTHIEZ. July 15,1955 [May 23, 1955], No. 20532/55. Class 83 (3). An indexing and clamping mechanism for a tool-turret comprises' gearing having a manually-controllable rotatable input member engaging a first freely-rotatable output member and adapted to rotate planetary gears supported by the turret, the planetary gears engaging a second output member, means responsive to limited rotation of said second output member serving to clamp or release the turret from its seating. The turret 1, Fig. 5, when clamped, bears against a flat surface 5 on the support 3 and is held central by a taper 4 on a stationary member 2 secured by bolts 23 to the support. When raised in the unclamped position, the turret rotates about a plain end 6 on the member 4. A member 7 with a flanged end 8 is non- rotatably but slidably mounted in a bore in the member 2, and has secured at one end a block 10. The latter carries an offset hand-lever 35 secured to the spindle 34 of a pinion 43. This pinion is in mesh with an internally-toothed ring 44 fully rotatable within the block 10. The ring 44 also meshes with planetary pinions 46 having spindles 46a mounted in the turret 1. These planetary pinions engage a sun-wheel 45 forming part of a sleeve 17. A bearing ring 16, Fig. 5, is secured to the lower end of the sleeve 17, and wedges 14 in the form of short needle rollers are carried between this ring and a similar bearing ring 15 secured to the inner face of the flange 8. Operation. On rotation of the hand lever 35, Fig. 3, the sun wheel 45 and sleeve 17 are rotated to collapse the wedges 14 and allow springs 11, acting through balls 13, to push the turret off its seating and free locking pins 60, Fig. 5. Further rotation of the hand-lever brings the sleeve 17, Fig. 3, against a pin 48 which brakes it, the planet pinions 46 then move around the sun-wheel 45 and carry with them the turret 1. The balls 13 move into and out of conical recesses in the turret to enable the index positions to be " felt " during rotation and a ratchet device 50, Fig. 5, holds the turret in its indexed positions during clamping and unclamping.
Patent GB-428985-A (GB)
Title: Improvements relating to eye shades
IPC: G02C7/16
Filed: 1934-11-12
Abstract: 428,985. Eye - shades. MITCHELL, F. G., 15, Elmfield Road, Chingford, Essex. Nov. 12, 1934, No. 20562. [Class 97 (i)] The part of an eye-shade a that normally bears against the wearer's head is fitted with a strip b of pliable absorbent material such as cork and a protective strip c of leather is attached to the strip of absorbent material and to the shade. The latter may be made of coloured celluloid and provided with an elastic band passing round the back of the wearer's head.
Patent GB-224305-A (GB)
Title: Improvements in or relating to the distillation of tar
IPC: C10C1/04
Filed: 1923-08-13
Abstract: 224,305. Chemical Engineering & Wilton's Patent Furnace Co., Ltd., and Shadbolt, S. M. Aug. 13, 1923. Hydrocarbons, distilling. - Tar is dehydrated by heating under pressure and passing into a vapour separator, and the dehydrated tar is led to a storage tank from which a pot still is supplied. Tar is forced by a pump a through a coil b in the storage tank c, and through a heater d and is delivered through jets into a vapour separator e. Water and light oils pass as vapours through a pipe f to a condenser g. The tar passes to the storage vessel c in which it accumulates until a charge is required for the still h. The vapours from the still h on the way to a condenser p may be passed through a coil k in the storage tank and serve to drive off a second fraction, which passes through a pipe m to a condenser n.
Patent GB-1490128-A (GB)
Title: Hydrophilic polymeric materials and method of making them
IPC: C08F261/04
Filed: 1976-05-14
Abstract: 1490128 Production of hydrophilic polymers REVERTEX Ltd 14 May 1976 [15 May 1975] 20675/75 Headings C3P and C3G A hydrophilic polymer is produced by polymerizing in aqueous medium a free radical polymerizable monomer whose homopolymer is water-soluble (optionally with up to 80 wt. per cent of one or more comonomers) and also 0À1 to 10 wt. per cent, based on the other monomer(s) of a copolymerizable cross-linking monomer, in the presence of a natural or synthetic polymer of average molecular weight at least 5000 and which contains 1 chemical equivalent weight of -OH groups per 200 parts by wt., the total of all said monomers amounting to at least 10% by wt. of said natural or synthetic polymer. In the examples, said natural or synthetic polymer is wheat starch, polyvinyl alcohol, starch, shredded blotting paper, or cotton wool. Monomer combinations polymerized in the presence of these are acrylamide/ethylene glycol dimethacrylate, acrylic acid/ethylene glycol dimethacrylate, and acrylamide/2-ethyl hexyl acrylate/ ethylene glycol dimethacrylate. Normally, substantial amounts of graft polymer are formed, especially when using redox initiator systems using eerie salts as oxidizing agents, as in Examples 1 and 7 to 9.
Patent GB-745846-A (GB)
Title: Improvements in cocks or taps
Inventor: JONES WILLIAM
IPC: F16K35/04
Filed: 1953-07-25
Abstract: 745,846. Plug cocks. UNITED GAS INDUSTRIES, Ltd. July 23, 1954 [July 25, 1953], No. 20694/53. Class 135. I a plug cock angular movement of the plug 11 relative to its shell or casing 10 is limited by an abutment member, such as the metal ball 14, or a kidney-shaped member, housed partly. in a recess or groove 11c formed in the curved exterior wall of the plug and partly in a cooperating recess or groove 10b formed in the curved interior wall of the casing 10, the arrangement being such that angular displacement in one direction or the other is prevented when the abutment member becomes locked or trapped between the opposed ends of the respective recesses or grooves. In Fig. 2, the two grooves 10b, 11c are of equal length and their combined length is such as to enable the plug to be moved from the fully open to the fully closed position, i.e. to be turned through 90 degrees in form shown. In the case of a kidneyshaped abutment member, the grooves are correspondingly lengthened to compensate for the wider abutment member. The grooves may be of unequal length and one of them may be of just sufficient length to receive the adjacent part of the abutment member. The plug is closed at the top and has a screw-threaded part 11b carrying a securing nut 13, which closes the tops of the grooves 10b, 11c, and a locking nut 13a. The plug has a port 11a adapted to register with a bore in the pipe part 10a when the cock is open. The bottom of the plug is open and is fitted with a rotatable sleeve 15 for receiving the end of a hose pipe.
Patent GB-378623-A (GB)
Title: Improvements in and relating to double seaming machines for applying the ends of metal containers
IPC: B21D51/34
Filed: 1931-07-20
Abstract: 378,623. Assembling and seaming can heads and bodies. DUNLOP, W., COLMAN, Ltd., J. & J., and RHODES & SONS, Ltd., J., Grove Iron Works, Wakefield, Yorkshire. July 20, 1931, No. 20759. [Class 83 (iv).] A machine for securing ends to can bodies by double-seaming comprises a number of mandrels 10 radially disposed on an intermittently rotated polygonal body 9, each mandrel being moved successively to body-receiving, end-receiving, seaming, and ejecting stations. The body 9 is rotatable on a bush 8 also forming a bearing for a rotating shaft 7, an arm 14 on a constantly driven shaft 11 carrying a roller 14a which engages recesses on the periphery of a plate rotatable with the member 9 to produce the step-by-step rotation. A locking member 59 reciprocated by an eccentric 56 prevents rotation during disengagement of the roller 14a. Bodies are fed from a forming-machine 17 on to the mandrels 10, and are moved to receive an end from a sleeve 21 reciprocated by arms 29, 30 from a cam- 25a. At each reciprocation a cam 53 raises a rod 39 to retract a spring-held rod 42b and to rotate a ratchet wheel which actuates a toothed roller 51 projecting into the magazine 34 for the ends, one of which is thus released ready to fall into a slot in the forward end of member 21 on backward movement. Dies 61a, 62a reciprocated from the shaft 7, act successively on the can to form the double seam. The ejector comprises a tubular body 69 reciprocated by an eccentric 73 and carrying spring fingers 70 to engage over the end of a can and withdraw it on the-outward movement, when it is engaged by detents 71 and stripped therefrom on the next outward movement of the body 69 by pawls thereon. The.mandrels 10 are mounted on studs 77, Fig. 13, by nuts 78, pins and recesses 82, 83 preventing rotation. A spring 77b is housed under compression in the bore of the mandrel. The base of the studs normally bear on the member 8a, but when die 61a is operating, the stud engages the head of a spring-pressed member 85, springs 77b, 86 permitting a movement sufficient to ensure a necessary clearance for curling over the edges of the can bodies. Provision may also be made for rolling or flanging the outer end of the can body. The dies 61a, 62a comprise a central resiliently held pressure plate surrounded by the annular forming surface.
Patent GB-1078344-A (GB)
Title: Electromagnetic relays
IPC: H01H50/22
Filed: 1965-05-17
Abstract: 1,078,344. Electromagnetic relays. H. L. NAIMER. May 17, 1965 [June 3, 1964], No. 20804/65. Heading H2B. The laminations of both the yoke 3 and armature 4 are secured together by synthetic resin coverings 32 and 28 respectively in the manner described in Specification 819,403, and the yoke is capable of limited movement, to prevent armature rebound, between a stop 52 and a stiff resilient stop 48, and both the armature and yoke are guided with slight play by the energizing winding 18 which is coated with a synthetic resin moulding 42. The moulding 32 of the yoke includes pins 35 which co-operate with the resilient stop 48 which although shown as part of the housing may be in the form of a stiff spring between the yoke and the winding. The armature is pivotally connected by pins 22 of moulding 28, to a bellcrank lever 6 which actuates auxiliary contact devices 60 and main contacts 50. The relay shown is generally similar to that described in Specification 1,078,343.
Patent GB-851316-A (GB)
Title: Improvements in or relating to electric heating elements
Inventor: STOKES KENNETH ROLAND
IPC: H05B3/82
Filed: 1958-06-30
Abstract: 851,316. Electric heating resistances. GENERAL ELECTRIC CO. Ltd. May 26, 1959 [June 30, 1958], No. 20863/58. Drawings to Specification. Class 39(3). An electric heating element comprising a wire contained within a metallic sheath filled with a refractory insulating material is subjected during manufacture to a greater degree of drawing and/or swaging at points along its length than at the remainders in order to provide different specific electric loadings at such points. In an application to an electric kettle, a length of element having a higher specific electric loading is solidly attached to the terminal head to facilitate instant actuation of the cut-out on over-heating of the element.
Patent GB-141408-A (GB)
Title: Improvements in or relating to air pumps
IPC: F04B39/00
Filed: 1918-12-16
Abstract: 141,408. Dunlop Rubber Co., and Milward, H. F. Dec. 16, 1918. Portable hand pumps. - A double-acting pump is provided at one end of the barrel with a delivery or suction chamber connected with the adjacent working space directly, past a ball valve, and with the remote working space by a passage similarly controlled. A ball valve in the hollow piston-rod, and a packing-leather surrounding the rod and acting as a valve control communication with the external air. As shown, the pump is provided with a delivery chamber 1 connected through valves 7, 8 and a passage 4 with the spaces on opposite sides of the piston, which comprises cup-leathers 12, 13 and is formed with a valve 10 admitting air to the lower space through the hollow rod. The inlet valve for the upper space comprises a cupleather 15, which may be retained in place in the cup of the barrel by a flange or by screws.
Patent GB-1129566-A (GB)
Title: Improvements in or relating to cushioning cylinders
IPC: B23Q16/06
Filed: 1966-05-12
Abstract: 1,129,566. Air dashpots. ERICKSON TOOL CO. 12 May, 1966 [14 Feb., 1966], No. 21086/66. Heading F2S. A pneumatic piston and cylinder shockabsorber for cushioning, or decelerating, the indexing movement of an index plate of an index fixture immediately prior to it reaching the final indexed position, comprises a piston 16 which is sealed in a working cylinder and which has a rod 17 which extends through openings 18, 19 respectively in a cylinder head 20 and the housing 2 of the index fixture 3 to be reciprocated by the latter, air ports 21, 26 leading to atmosphere being provided in the heads 20, 25 of the cylinder 15 which is also provided with one or more longitudinally extending-grooves 34. The bore 26 leads to a transverse bore 27 which is controlled by a needle valve 29 and which communicates with central opening 28 connected to the atmosphere through a nozzle 33 and to the interior of the cylinder by means of a one-way flap valve 31. The piston 16 can move relatively freely as the rod 17 is withdrawn from the cylinder 34 air passing out of the cylinder through the point 21, and into it at the opposite end through the opening 28 and the one way valve 31, air also passing from one side of the piston to the other through the grooves 34. Contraction of the shock-absorber is relatively free until the piston 16 passes the corresponding ends of the grooves 34 after which the final movement of the piston 16 is cushioned since air is only able to escape from the cylinder through the port 26, the bores 27, 28 and the nozzle 33, the valve 31 being closed.
Patent GB-1500605-A (GB)
Title: Aqueous compositions of polyimides
IPC: C08J3/05
Filed: 1975-05-19
Abstract: 1500605 Laminates RHONE-POULENC INDUSTRIES 19 May 1975 [20 May 1974] 21203/75 Heading B5N [Also in Division C3] Pseudoplastic aqueous suspensions of a prepolymer powder prepared from (A) a bis-imide or mixture thereof with a mono-imide and (B) a polyamine contains 2 to 5 primary or secondary amine groups, at least one being primary, or a mixture thereof with one or more primary and/or secondary monoamines and/or secondary polyamines contains 0À01 to 8% by wt. of the powder of (C) heteropolysaccharide of M.W. at least one million. In (A) D is Y is H, CH 3  or Cl, m is 0 or 1, A is a C 2-30  divalent radical and R is H or a C 1-20  monovalent radical. Extensive lists for reactants (A) and (B) are given; reference is made to U.S. patent 3,349,077 and Canadian patents 681,525 and 746,000 in respect of (C). The composition may contain 5 to 60 wt. per cent of prepolymer and the aqueous phase may include 5 to 15% of an organic solvent. The compositions are useful for forming prepregs from fibrous reinforcement which can be shaped prior to or during curing. Example 1 describes the impregnation of woven glass fabric and the formation of an 18-ply alternating weft and warp laminate therefrom.
Patent GB-460281-A (GB)
Title: Improvements in or relating to the production of potassium sulphate
IPC: C01D5/08
Filed: 1935-07-25
Abstract: Potassium sulphate is obtained from potassium chloride in a cyclic process comprising the following steps: (1) the reaction of potassium chloride with sodium sulphate and glaserite in the presence of water and at a temperature not exceeding 55 DEG  C., with the separation of solid potassium sulphate; (2) the addition of sodium sulphate to the mother liquor from step (1) to precipitate glaserite which is separated and returned to step (1); (3) the treatment of the mother liquor from step (2) combined with the end liquor returned from the end of step (3) by evaporation to deposit sodium chloride (which is removed) followed or preceded by cooling to deposit a mixture of potassium chloride and glaserite which is returned to step (1), the end liquor being returned to the beginning of step (3).  The process may be modified by adding some or all of the potassium chloride in step (2), solid potassium chloride passing with the glaserite to step (1), or by combining steps (1) and (2) as a single step in which potassium chloride, sodium sulphate and glaserite recycled from step (3) are mixed in a single stage.  Some water may be removed by evaporation from the liquor from step (1) prior to the glaserite separation of step (2) and the liquor from step (2), or the combined steps (1) and (2), may be similarly treated before combining it with the end liquor from step (3).  The glaserite returned to step (1) may be dissolved in the water to be added to the process.  The sodium sulphate may be employed in the hydrated form.  The separation of the potassium sulphate is preferably effected at a temperature of about 0 DEG  C.  The cooling may be effected by utilizing the endothermic effect produced by adding the reacting salts to water.  Specification 410,830 is referred to.
Patent GB-678172-A (GB)
Title: Manufacture of new pyrene condensation products
Filed: 1949-08-16
Abstract: The invention comprises 3 : 8-, and 3 : 10-di-(o-carboxybenzoyl)-pyrene and a mixture of these two acids. These compounds and their derivatives substituted in the benzoyl nuclei by halogens are produced by heating pyrene with at least two molecular proportions of phthalic anhydride or halogen substituted phthalic anhydride, respectively, in an inert solvent and in the presence of aluminium chloride (preferably in excess) at a temperature between 50 DEG  and 100 DEG  C.  The products on ring-closure with acid condensing agents yield the diquinones 3 : 4-8 : 9-diphthaloyl pyrene and 3 : 4-9 : 10-diphthalolyl pyrene. Tetrachlorethane and trichlorobenzene are suitable solvents.  The mixture of isomers is separated by crystallization of the sodium salts of the acids from sodium hydroxide solution.  Examples describe the reaction of pyrene, phthalic anhydride and aluminium chloride in (1) tetrachlorethane and (2) trichlorbenzene. Monocarboxylic acid is removed with hot acetic acid and the two dicarboxylic acids may be separated by crystallization of their sodium salts.  The mixed or separated acids are then converted to the diquinones by heating with concentrated sulphuric acid or with benzoyl chloride and sulphuric acid.  Both diquinones give a brown vat in alkaline sodium hydrosulphite.  Reference is made to Specification 366,472.ALSO:3 : 4-8 : 9- and 3 : 4-9 : 10-Diphthalolylpyrenes are prepared by ring closure with acid condensing agents of 3 : 8- and 3 : 10-di-(o-carboxybenzoyl) pyrenes, the preparation of which is described (see Group IV (b)).  The benzoyl groups may be halogen-substituted.  The products are vat dyestuffs giving a brownish vat in alkaline sodium hydrosulphite.  The ring closure may be effected by heating the dicarboxylic acid at 150 DEG  C. with 10 times its weight of sulphuric acid or with benzoyl chloride and a trace of sulphuric acid.  Reference is made to Specification 366,472.
Patent GB-1113333-A (GB)
Title: Process for production of industrial gases
Inventor: KLOSE ERHARD
IPC: C10J3/00
Filed: 1965-05-20
Abstract: Combustible gases made by the gasification of solid fuels under pressure are subjected to a two-stage process.  The gases are supplied with a gasification agent in the absence of a catalyst to oxidize solid and liquid constituents in the gases to form further gas, and water is then added to the gas mixture to cool it, suppress soot, and to provide steam for subsequent catalytic conversion.
Patent GB-1387145-A (GB)
Title: Electronic ignition control circuit
IPC: F02P3/045
Filed: 1972-05-08
Abstract: 1387145 Ignition systems CHRYSLER CORP 8 May 1972 [1 June 1971] 21430/72 Heading F1B [Also in Division H3] A circuit for initiating and controlling the duration of the anti-dwell firing period of the ignition cycle of an I.C. engine comprises a capacitor 77 connected between the collector of transistor 60 and the base of transistor 64, the capacitor 77 having a charging path comprising resistor 70 and the base-emitter path of transistor 64, and a discharge path comprising resistor 82 and an element 62 which is actuated when the capacitor charge attains a predetermined value. In the quiescent state, transistors 60, 66, 68 are on and transistors 62, 64 are off. As a tooth on wheel 40 approaches coil 44, current is drawn through diode D1 to cut off transistor 60 and capacitor 77 charges to turn on transistor 64 which is regeneratively coupled to transistor 60. Transistors 66, 68 also cut off to generate an ignition pulse. When the voltage across capacitor 77 exceeds the voltage on the gate of PUT or anode gate thyristor 62 this conducts discharging capacitor 77 until 64 again goes off and 66, 68 again become conductive. As the tooth leaves coil 44, transistor 60 again turns on to extinguish 62 and the circuit is again in its initial stage, ready for the passage of the next tooth past coil 44. As the input pulse rate increases, capacitor 77 has progressively less time to discharge, and the output pulse width is thus progressively shortened, reducing the length of the anti-dwell firing period. Protection of the transistor 68 against excess collector voltage which might appear during an unloaded or open circuit condition of the ignition coil secondary is given by Zener diode Z94.
Patent GB-1027072-A (GB)
Title: An adjustable scoop
Inventor: DYKE EDWARD
IPC: G01F19/00
Filed: 1963-05-29
Abstract: 1,027,072. Scoops. GASCOIGNES (READING) Ltd. May 13, 1964 [May 29, 1963], No. 21451/63. Heading A1B. An adjustable scoop comprises a container 1 of substantially uniform crosssectional area and having an axially movable floor 3 so that the volume of the scoop may be varied, the floor 3 being moved by means of a rotatable screw threaded bolt 9 carried by a handle 7 attached to the container. The bolt may engage a screw-threaded boss 10 on the floor, as shown, or a threaded sleeve carried by the floor. To facilitate its use, the scoop has a flat marginal portion at its open end which may have a strengthened rim 5. Flutes or corrugations 6 may be provided parallel to rim 5.
Patent GB-1490856-A (GB)
Title: Escape apparatus
IPC: A62B1/20
Filed: 1974-10-31
Abstract: 1490856 Emergency escape apparatus FUJIKURA RUBBER WORKS Ltd 31 Oct 1974 [7 Nov 1973 (4) 8 Nov 1973 12 Nov 1973 (2) 13 Nov 1973 27 Dec 1973 27 March 1974 (2)] 21465/77 Divided out of 1490855 Heading B7J The subject matter of this Specification is substantially the same as that described in parent Specification 1,490,855, but the claims are concerned with a foldable escape apparatus comprising a tubular shoot of zig-zag configuration.