baber/WOPTO huggingface dataset:
Patent GB-1254481-A (GB)
Title: Method of copolymerizing unhindered conjugated dienes with maleic anhydride
IPC: C08F236/04
Filed: 1969-03-26
Abstract: 1,254,481. Diene-maleic anhydride copolymers. BORG-WARNER CORP. 26 March, 1969 [26 April, 1968], No. 15940/69. Heading C3P. A conjugated diene and maleic 'anhydride are copolymerized by adding catalyst, polymerization solvent and approximately equimolar ratios of conjugated diene and maleic anhydride continuously to a reactor. The reactor preferably already contains some catalyst and some solvent. By continuously withdrawing polymer and unreacted monomer from the reactor, a continuous process of polymerization can be performed. In a two-stage process, the maleic anhydride can be in a slight excess in the first stage and then in the second stage the concentration of catalyst and conjugated diene can be kept at a level to polymerize the maleic anhydride fully.
Patent GB-383570-A (GB)
Title: Still for substances of high boiling point
IPC: B01D1/00
Filed: 1932-06-06
Abstract: <PICT:0383570/III/1> In a still a for distilling liquids of high boiling-point e.g. fatty acids condensate is prevented from flowing back down the walls by the provision of two bell-shaped members k, h mounted to form a space l which is in communication with the still and is filled with stagnant gas thus insulating the member h from the heat of the still.  Condensate is collected on the upper side of the member h and removed through a duct i.  The liquid is distilled by a heating coil c and distillation is aided by introducing steam through a perforated coil m and also through a pipe e into an up-cast member d co-operating with a baffle f, thus providing circulation of the liquid by air lift in the known manner.
Patent GB-314652-A (GB)
Title: Improvements in the manufacture and production of nitrogenous dyestuffs
IPC: C09B3/48
Filed: 1928-05-31
Abstract: 314,652. I. G. Farbenindustrie Akt.- Ges. May 31, 1928. Addition to 285,502. Pyranthrone derivatives.-The process of the parent Specification is modified by heating polyhalogenpyranthrones with nitrogen-containing carbocyclic compounds in which at least one reactive hydrogen atom is connected to the nitrogen atom, in the presence of copper in the metallic or combined form as catalyst in comparatively large amounts, i.e. about 5 per cent or more, calculated as metal, of the theoretically possible yield of reaction product, whereby several or all of the halogen atoms are substituted by nitrogenous carbocyclic residues. In examples, tri- and tetrabromopyranthrone are boiled with alpha-aminoanthraquinone, sodium acetate and copper oxide in nitrobenzene. The use of penta-, hexa-, and heptahalogenpyranthrones and of aminoanthrones and aminopyranthrones is mentioned. Halogen pyranathrones are obtained by treating pyranthrone in chlorsulphonic acid with halogen.
Patent GB-333938-A (GB)
Title: Improvements in or relating to apparatus for sorting apples, eggs or other suitable articles
IPC: B07C5/24
Filed: 1929-05-23
Abstract: 333,938. Hodgins, R. D. Scoble-. May 23, 1929. Sorting by weighing. -In an apparatus for sorting apples, eggs, or other suitable articles, the articles are fed on to a plurality of pivotally mounted weighing trays or the like adapted to be rotated in a predetermined path, the trays co-acting with a plurality of gates pivotally mounted on a stationary platform co-axial with the axis about which the traps rotate, the gates being permitted to open to allow the trays to turn about their pivots to release or deflect the articles when they overcome or balance a force tending to maintain the gates in a closed position. The articles to be sorted are carried from a hopper 9, Fig. 1, by means of an endless belt 10, perforated to reject undersized articles, and are deposited on rotating screw-shaped rollers arranged longitudinally on a table 12. The rollers whilst feeding the articles formed cause them to rotate and facilitate the inspection of their surfaces. The articles are delivered by the rollers to a pair of conveyers 13, 14 each delivering to a constantlydriven compartmented drum 19, Fig. 3, which in turn delivers to the compartments of a loose placing drum 20. Below the placing drum is a series of pivoted trays 24 carried by a constantlyrotating vertical shaft. As each tray passes the placing drum 20 a lug 22 on the tray rotates the drum and receives an articles therefrom. A finger 26, Fig. 4, projecting from the tray slides along the surface of a stationary disc 27 provided with a series of pivoted gates 30. The gates are counterbalanced by levers 31 carrying weights 33 or samples of the articles being tested. If the article on the tray 24 is sufficiently heavy the gate descends under the pressure of the finger 26 and the article is tipped into a compartment below, the tipping action being retarded by a cam surface 41. Lighter articles are carried to the succeeding gates for further testing and the lightest articles are tipped off when the finger 26 arrives at a gap 35. A cam surface restores the trays to their upper positions. In a modification, the gates 30 open upwardly and the fingers on the trays are arranged to press upwardly against the under side of the disc 27. Instead of the duplicate arrangement of trays shown in Fig. 1, a single arrangement may be provided, or the two sets of rotating trays may be arranged concentrically of one another and two such arrangements may be arranged side by side after the manner shown in Fig. 1. Specification 328,512 is referred to.
Patent GB-511388-A (GB)
Title: Improvements in or connected with cutter-chain machines for use in mining coal and other minerals
IPC: E21C35/20
Filed: 1938-05-30
Abstract: 511,388. Mining machines. MAVOR & COULSON, Ltd., and MAVOR, J. B. May 30, 1938, No. 16043. [Class 68 (i)] For removing cuttings which emerge with the cutter-chain of a mining machine, a helical conveyer is provided operating in a transverse direction at and adjacent to the leading side of the cutter-chain near where the cutter-chain passes round its driving sprocket. The conveyer comprises a helix 3 in a cylindrical housing 2 on a carrier 6 with transmission gearing 7 adapted to be connected with either of two driving couplings on the mining machine according to the side on which the cutter-chain is cutting, the conveyer being on the side of the machine remote from the coal face. As shown, the conveyer is tangential to the cutter-chain, cuttings entering a side opening in the housing, and leaving through the end of the housing. In another form, the conveyer is at right angles to the line of advance of the mining machine. The device may be applied to overcutting machines. Specification 329,837, [Class 68 (i)], is referred to. The Provisional Specification states that a tubular extension may be attached to the discharge opening to carry the cuttings to a face conveyer &c., and also that a scraper conveyer may be used.
Patent GB-162953-A (GB)
Title: Improvements in and relating to railway rail joints
IPC: E01B11/10
Filed: 1920-06-14
Abstract: 162,953. Dedik, Y. June 14, 1920. Rail joints.-Rail ends are grooved at 16, 16<1> and have a recessed web 14 to receive fish-plates 13 which are bolted in position. A fish-plate or chair 22 is also secured on the joint by bolts 25, the plates 13 extending beyond the chair 22 to receive one or two bolts 25<1> on each side of the chair. The plates 13 have angular upper edges 19 with the apex opposite the rail ends.
Patent GB-905150-A (GB)
Title: Bricklayer's hammer
IPC: B25D1/02
Filed: 1961-05-03
Abstract: 905,150. Bricklayers' hammers. WESTBROOK, F. R. June 28, 1961 [May 3, 1961], No. 16105/61. Class 61. One of the striking faces of a bricklayer's hammer 1 is provided with transverse parallel slots 2 each of which accommodates a reversible steel comb 3 or chisel. The slots are inwardly tapered to frictionally grip the combs or chisels.
Patent GB-330747-A (GB)
Title: Improvements in mangling and wringing machines
IPC: D06F45/00
Filed: 1929-05-25
Abstract: 330,747. Schultz, A. May 25, 1929. Mangles and wringers.- The whole of the rollers of a mangle or wringer and the driving gear and pressure arrangements therefor are arranged not to project above the top of the end frames of the machine so that a table cover may be placed thereover without having to lower the mangle &c. to an inoperative position. The end frames a are provided with vertical recesses c in which the fixed bearings g of the upper roller shaft d and the movable bearings h of the lower roller shaft d' are carried. Bolts j, j<1> pass through the bearing plates and springs k, k<1> are compressed between the plates h and pressure plates m which are acted on by screws i. The table cover consists of two hinged leaves o.
Patent GB-558651-A (GB)
Title: Improvements relating to the setting devices of mechanical clockwork time fuzes for ammunition
IPC: F42C19/02
Filed: 1941-12-15
Abstract: 558,651. Projectile fuzes. MEFINA SOC. ANON. Dec. 15,.1941, No. 16157. Convention date, Dec. 13, 1940. [Class 9 (i)] A clock work fuze for projectiles having a rotatable member on the fuze body for setting the fuze is provided with both centrifugal and momentum-actuated friction means to restrain the rotatable member from rotation after setting. The upper end of the fuze body is provided with a tapered surface 11 to coact with a corresponding tapered surface 10 provided on the internal surface of the rotatable setting member 16, and tapered ring segments 12 are adapted to engage a groove 13 in the fuze body and a tapered groove 15 in the rotatable adjusting member. The segments are adjusted to regulate the friction by means of screws 14 accessible from the exterior of the rotatable member, the apertures in which may be subsequently closed by screws 17. An elastic packing ring 18 is provided between the lower end of the rotatable member 16 and the fuze casing.
Patent GB-810674-A (GB)
Title: Driving device for sound-record carrier in recording machines
IPC: G11B15/29
Filed: 1956-05-24
Abstract: 810,674. Driving recording tapes &c. BAR, S. May 24, 1956 [May 24, 1955], No. 16169/56. Class 40 (2). A sound-record carrier feeding mechanism has a supply-spool 1 freely mounted on one arm of an electrically or otherwise actuated spring-returned swinging lever 14 the other arm of which carries a roller 15 to transmit a drive from a driving roller 3 to a take-up spool 2; a second similarly-controlled swinging lever 17 carries on one arm a pressure roller 11 to urge the carrier 10 against a capstan 12, and on the other arm a pair of brakes 19, 18, one strong and one weak, adapted to act selectively on the supply spool 1. The levers 14, 17 are swung about their pivots 13, 16, against return-springs 7, 8, either mechanically (by a single button acting through cams, linkages or levers, or by an individual button for each lever) or electrically by magnets or solenoids, one of which is indicated at 6; in addition, the lever 17 may be moved to an intermediate' position (wherein the roller 11 and both brakes 18, 19 are withdrawn) by a spring-loaded button 26 having a conical surface 28 which engages the side of the lever 17. For normal travel of the carrier 10 past the sound head 9, the magnet 6 pulls the pressure roller 11 towards the capstan 12 and applies the weak brake 18 to the supply spool 1, while spring 7 maintains the roller 15 in engagement with the driving roller 3 and the take-up spool 2 (both spools have the usual frictional mounting); for stopping, de-energization of the magnet 6 allows the spring 8 to withdraw the pressure roller 11 and brake 18, and to apply the strong brake 19. For fast forward travel, depression of the knob 26 first opens contacts 31 to deenergize the magnet 6 as for stopping, but when the conical surface 28 engages the lever 17 the strong brake 19 is withdrawn and the take-up spool 2 winds at full speed without slip. For re-winding, the magnet 6 is de-energized and the magnet coupled to the lever 14 is energized to move the latter anti-clockwise to disengage the roller 15 and to bring the spool 1 out of range of the brakes 18, 19 and into engagement with a driving roller 4. The spool 2 may be permanently braked by a fixed brake (not shown), or a brake may be mounted on the lever 17 near the roller 11, so as to be operative on the spool 2 only when the lever 17 is at its anti-clockwise limit; during re-winding, this latter brake is withdrawn by a lug on an extension of the lever 14 (Fig. 2, not shown).
Patent GB-371201-A (GB)
Title: Improvements relating to spring suspension devices for motor road vehicles
IPC: B60G11/58
Filed: 1931-06-04
Abstract: 371,201. Vehicle suspensions ; dashpots. TULLIS, D. R., Somerfield, Manor Hill, Sutton Coldfield. June 4, 1931, No. 16177. [Classes 108 (ii) and 108 (iii).] In motor vehicle spring suspension devices combined with steering swivels, a double-ended cylindrical plunger 1 carrying a stub axle 2, on which the wheel rotates, is mounted so as to slide and rotate within upper and lower cylinders 7, 3 rigidly secured to the frame 6 of the vehicle, the upper cylinders enclosing helical supporting springs 9 while the lower cylinders co-operate to form a pneumatic damping device. The end of the lower cylinder 1 is closed by a disc fitted with a cup leather 10. A one-way valve 11 connects the dash pot with the atmosphere. Lubricant may be supplied to the interior of the lower cylinder 1 from which it passes through holes 13 to the working surfaces. The stub axle 2 is operated for steering in the usual manner.
Patent GB-986927-A (GB)
Title: Production of crystalline semiconducting material
IPC: C01B33/02
Filed: 1961-05-04
Abstract: Crystals of semi-conductor material having a lamellar or blade-like habit with a length of at least 10 mm., a width of at least 3 mm. and a thickness 0.001 mm. to 0.2 mm. and substantially planar upper and lower surfaces have the general formula (AxB1-x)III(CyD1-y)V where A and B are different elements but both of Group III and C and D are different elements but both of Group V and the subscripts x and y denote atom proportions whose values are zero to unity inclusive and are prepared in this crystal habit by charging a reaction chamber with reactants comprising a halogen, and the material or the elements of the material of which the crystals are to be made, or the halides of such elements, heating the reactants, in the absence of other materials, to a temperature adequate to transform them to the vapour phase in the chamber, and cooling at least a portion, or only a portion, of the reaction chamber at a rate such that the slope of the temperature/time curve at the point where crystallization occurs is from 7.5 DEG  to 70 DEG  C. per minute to give the desired crystals. The preferred cooling rate is 7.5 DEG  to 15 DEG  C. per minute and in a preferred embodiment the reactants are gallium, arsenic and halogen, the halogen being iodine crystals.  The elements of the specific compound to be formed are preferably charged in equal atomic proportions into the reaction chamber, and the crystals formed have a length to width ratio of at least 3.
Patent GB-529527-A (GB)
Title: Improved edging strip or beading for connecting parts, such as panels in edge-to-edge relation
IPC: E06B3/62
Filed: 1939-06-02
Abstract: 529,527. Beading strips for mounting window and other panels; prizing tools. YELLOW TRUCK & COACH MANUFACTURING CO. June 2, 1939, No. 16255. Convention date, June 3, 1938. [Classes 20 (iii) and 20 (iv)] [Also in Group XXIII] A beading strip for joining two panels or the like in edge-to-edge relation, e.g., a metal panel 4 and glass pane 3, comprises a rubber strip 1 having a pair of grooves 5, 10 to receive the adjoining edges of the parts 3, .4, respectively, and a wedge-receiving recess 13, for a wedging strip 2, which is inserted in the recess to clamp the sides of the grooves against the two joined parts. The recess and strip 2 are provided with interlocking means 15, 16. The sides of the grooves 5, 10 originally diverge inwardly, to ensure a snug fit when the panels 3, 4, are inserted. In a modified form, of the strip, one side of one of the grooves is moulded originally in displaced position relative to the other side to facilitate fitting of the pane when it is being inserted into a frame round the edges of which the joining strip has already been attached. The strip is then forced into the shape shown in Fig. 2 when the wedging strip 2 is inserted. A continuous strip may be used for' fitting a window in a frame if the corners of the frame be curved. A prizing tool for inserting the strip 2 into the groove 13 has a hollow handle 19 which carries an arm 18 terminating in an eye 17, shaped as shown in Fig. 4 to carry the strip 2 without twisting. To fit the strip 2 into the groove, it is first threaded through the handle 19 and the eye 17. The eye is then forced into the groove and drawn along it.
Patent GB-475145-A (GB)
Title: Improvements in or relating to presses for tennis and like rackets, trousers and ties
IPC: A63B60/44
Filed: 1936-06-11
Abstract: 475,145. Trouser &c. presses. SLADE, R. G. June 11, 1936, No. 16285. [Class 141] [Also in Group XV] In a trouser or like press, particularly described as applied to racket presses, a pair of operating levers E, E<1>, slidably interengage with each other in such a manner that pressure on the lever E<1> causes movement of the lever E. The levers are rigidly connected to bars F, F<1>, preferably of U-section and carrying cams G which coact on the corners of the press with studs B which are secured in the lower frame member A<1> and carry springs D which normally keep the frame members apart. A locking pin K<11> is adapted to engage a lip K in the closed position and therefore, owing to the pressure of the springs D, the press is automatically opened by a single movement of the member K<11>. When applied to a triangular press, one lever E<111>, Fig. 3, may be formed to engage round a stud B<1>, or the stud may be split to take on a pivot pin B<111>. The lever may be formed with a cam G, Fig. 6, or the pin may be integral with the lever and carry a cam or cams.
Patent GB-236542-A (GB)
Title: Improvements in or relating to joint fittings for thin walled tubes and the like
IPC: F16B7/04
Filed: 1925-06-24
Abstract: 236,542. Hall, C. W. July 2, 1924, [Convention date]. Joints with yielding inner part expanded; joints with yielding outer parts compressed.-A joint fitting for thin-walled tubes &c. comprises two co-operating members A', B<1>, Fig. 3, between which the tube C' is positioned, the member A' being formed with a circumferential depression a' having either a continuously curved or angular bottom with filleted edges and corners, and the member B, which is a band of less width than the width of said depression and provided with filleted edges, being capable of being deformed thereby to press the tube wall into and to hold it seated in the depression. Alternatively the members are interchanged. When the ends of two tubes C, D are to be joined, the jointing members A, B are arranged as shown in Fig. 1. In the application to a joint adapted to resist torsional stresses, the depression is formed polygonal in cross-section, and where considerable bending is to be resisted the member A should be elongated and interiorly tapered at one end b. The members A, A' may, if desired, be formed with a plurality of circumferential depressions.
Patent GB-1341098-A (GB)
Title: Hold down mechanism for the ramp of a dockboard
IPC: B65G69/28
Filed: 1971-05-21
Abstract: 1341098 Dock-levellers KELLEY CO Inc 21 May 1971 [1 June 1970] 16330/71 Heading B8E A dock-board 7, Fig. 2, which is counterbalanced by a spring 18 so that it inclines upwards as shown, has means 24 for preventing the upward movement comprising a tube 25, pivoted to a fixed support, within which is a resiliently supported tube 30, Fig. 4, provided with pawls 36, 37 which engage a ratchet 33 pivoted to the dock-board. To raise the dock-board a pawlrelease lever is pulled by means of a cable 66 with a handle 69. This causes the pawls to be withdrawn by a projection 41, Fig. 4, connected to the handle by a lost motion device which comprises a pin 53, Fig. 5, a slot 65 and a spring 56. When the dock-board is fully raised the handle 69 is released and an operator walks along the board to bring it down into engagement with a vehicle platform. The released pawls hold the board in this position and the spring 32 enables the board to rise slightly as the vehicle is unloaded. Only one pawl is fully engaged at a time thus providing finer adjustment.
Patent GB-480502-A (GB)
Title: Improvements in jib cranes
IPC: B66C23/36
Filed: 1937-06-12
Abstract: 480,502. Jib cranes. FORGES & ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. June 12, 1937, No. 16365. Convention'date, June 13, 1936. [Class 78 (iv)] To fold a portable jib crane for transport, rigid struts. 11 are used to connect the rear legs 4 of the frames to the part 6 of the jib extending to the rear of the pivot 5. The front legs 3 are then detached from the wheeled base 1 and the rear legs and hauled up towards the jib by the load rope, pivoting about the point 5 during the process. Pulley-tackle 9 or a single rope is then operated by hand or a motor 8 to lower the triangular structure 4, 6, 11 by pivoting about the point 12 until the jib is lowered into the desired position for transport. By winding up the rope 9 the jib can be raised again into the acting position.
Patent GB-965309-A (GB)
Title: New polyesters
IPC: C08G63/19
Filed: 1962-04-30
Abstract: New polyesters and polycarbonates are made by reacting dicarboxylic acids (or their ester-forming derivatives) or ester-forming derivatives of carbonic acid with dihydric phenols having the formula: <FORM:0965309/C3/1> where R is an unsubstituted acylene (e.g. phenylene or naphthylene) radical.  Specified substituents for [Ar] are methyl, ethyl, isopropyl, methoxy, cyclohexyl, phenyl, benzyl, p-tolyl, carboxyl, carboxylic ester, chlorine and bromine. Specified dicarboxylic acids are succinic, adipic, sebacic, maleic, fumaric, itaconic, citraconic, phthalic, isophthalic, terephthalic, naphthalene-1: 4-dicarboxylic; and diphenyl-sulphide, -sulphoxide, -sulphone and -propane-4:41-dicarboxylic acids.  As ester-forming derivatives, there may be used the esters, anhydrides, polyanhydrides or acid halides.  Specified ester-forming derivatives of carbonic acid are diesters, bishydrocarbyl carbonates of dihydroxy compounds, phosgene, bis-halogenoformates, phosgene or trichloromethyl-chlorocarbonic ester.  In addition to the above specified dihydric phenols, there may be used hydroxycarboxylic acids or aliphatic, cycloaliphatic or aromatic dihydroxy compounds (e.g. dihydroxydiphenyl-alkanes, -ethers, -sulphides, -sulphonides or -sulphones). Polyestercarbonates may be made by the process of Specification 958,798.  The polymers are soluble in pyridine, dimethyl formamide, methylene chloride, chloroform, chlorobenzene, phenols, dioxane, benzene and toluene and may be used in the manufacture of fibres, films and other shaped articles. Examples describe reacting a , a , a 1, a 1-tetramethyl-a , a 1-(di-p-hydroxyphenyl) -pxylene with (1) and (5) diphenyl carbonate; (2) dricresyl carbonate; (3) diphenyl isophthalate; (4) diphenyl sebacate; (6) phosgene; (7) the bis-chlorocarbonate of bis-phenol A. Specification 955,061 also is referred to.
Patent GB-1080857-A (GB)
Title: Metallurgical vessels
IPC: F27D3/15
Filed: 1966-04-14
Abstract: 1,080,857. Furnace tapholes. HARBISONWALKER REFRACTORIES CO. April 14, 1966 [April 29, 1965], No. 16404/66. Heading F4B. In the taphole for a basic open hearth furnace disclosed in Specification 1,084,089, the segments are of inverted U-shape so that the bottom of the taphole is defined by the surrounding monolithic refractory mass.