baber/WOPTO huggingface dataset:
Patent GB-563142-A (GB)
Title: Production of hydrocarbon alkylation products
IPC: C07C2/70
Filed: 1943-01-27
Abstract: Hydrocarbons for use in motor fuels are prepared by alkylating lower boiling hydrocarbons in the presence of sulphuric acid of alkylating strength and contacting the product in the liquid phase under superatmospheric pressure with an aqueous basic solution at above 100 DEG  C. to remove sulphur compounds.  2-10 per cent aqueous solutions of alkali or alkaline earth hydroxides, preferably sodium, calcium or ammonium hydroxide, or other strong bases such as quaternary ammonium bases, may be used.  Cyclic hydrocarbons, such as benzene, toluene, xylene or naphthalene or hydrogenation products thereof, or isoparaffins such as isobutane or isopentane or mixtures thereof or containing them may be alkylated with propylene, butylenes, amylenes, olefinic polymers such as di- and tri-isobutylenes, alcohols such as propyl, isopropyl, primary, secondary and tertiary butyl alcohols, ethers such as di-isopropyl and methyl tertiary butyl ethers, inorganic and organic esters of such alcohols, e.g. the mono- or di-sulphates or phosphates, alkyl halides or mixtures of or containing any of these.  Cumene may be produced, for example, by alkylating benzene, preferably purified from sulphur by agitating with an equal volume of 98 per cent sulphuric acid at 40-50 DEG  C. for 20-30 mins. and then washing with aqueous caustic soda. Alkylation is effected with propylene using at least 3 mols. of benzene, preferably 5-10 mols. per mol. of olefine, and 80-95 per cent sulphuric acid, for example, 86 per cent acid at 50 DEG  C. or 88 per cent at 40 DEG  C. with contact times of 10-40, preferably 20-30 mins.  An emulsion of hydrocarbon and acid may be circulated while fresh reactants are continuously fed and products removed to a separator.  Acid is returned and the crude hydrocarbon phase treated with about 10-50 per cent by volume of 2-10 per cent caustic soda solution at about 100-180 DEG  C., preferably 140-160 DEG  C. for at least 5, preferably 10-30 mins. Hydrocarbons lower boiling than benzene and, if desired, benzene also, may be separated from the alkylation product during or before the alkali treatment.  The treated product may be further fractionated or otherwise treated. Sulphur figures for treated cumene are compared with those for the untreated and ordinary alkali-washed product, and the results of engine tests on blends of 20 per cent cumene and 80 per cent 100 octane aviation gasoline containing 4 c.c. T.E.L. per U.S.A. gallon are given.
Patent GB-563143-A (GB)
Title: Improvements in safety razor blade magazine holders
IPC: B26B21/24
Filed: 1943-01-27
Abstract: 563,143. Safety razors. BENJAMIN, S. H. Jan. 27, 1943; No. 1395. [Class 30] A holder for a safety razor blade magazine has two side members co-operating with the magazine, a forward member or members inserted between the razor guard and a used blade, and means to receive the guard. The side members 55, Fig. 16, have runways 56 for the'magazine 70 and lower runways 57 receiving the razor guard, whilst the forward members 62 release the used blade from the guard. Members 55 may be connected by a plate which may be in two parts 50A, 50B and have blade-removing lugs 54, one member having a spring catch 63 to retain the magazine 70, which has flanged sides 71 engaging the runways 56. The top plate may be omitted and the lugs 54 formed on the magazine. The guard has vertically-movable studs, as described in U.S.A. Specification 2,226,964, which engage slots 82, Fig. 7, in the blade 81, the blade having also abutment slots 84 and a - central slot 83 to clear the razor stem. The holder may be modified for single-edged blades 81A, Fig. 21, having stud-slots 82A and a stemslot 83A. With long narrow double-edged blades 221, Fig. 44, the magazine has members 313 which hold the studs depressed to enable the used blade to ride into chamber 333 formed by the holder top 203 and a cover 200 which may be removable.
Patent GB-1089861-A (GB)
Title: Quinone cure of rubbery polymers
IPC: C08K5/08
Filed: 1965-01-12
Abstract: A curable rubbery composition comprises a blend of a vulcanizable low unsaturated halogenated rubber with an unvulcanized high unsaturated rubber, the low unsaturated halogenated rubber having been compounded with 1 to 50 parts of zinc oxide, zinc peroxide or cuprous oxide and 0.1 to 15 parts of a quinone, both parts being per 100 parts rubber. By "quinone" is meant (1) p-benzoquinone, (2) 1,4-naphthoquinone, (3) 9,10-anthraquinone and products of these compounds in which the carbonyl group remains intact and unchanged.  Specified low unsaturated rubbers are butyl rubber and ethylenepropylene-diene terpolymers while natural rubber, polyisoprene, butadiene-styrene rubber, butadiene-acrylonitrile rubber and polybutadiene are specified high unsaturated rubbers; a blend of 50/50 natural rubber/butadiene-styrene rubber may also be used.  There may be present in the compounded rubbers a filler, e.g. clay, silica, silica-alumina or carbon black as well as other usual compounding and vulcanizing agents.  The compositions when used as cements will also contain solvents.
Patent GB-854340-A (GB)
Title: Process for printing and dyeing polyester fibres
IPC: D06P5/02
Filed: 1958-01-15
Abstract: The printing and dyeing of textile fibres and materials made from high molecular weight polyesters of aromatic dicarboxylic acids is effected by printing or padding with printing pastes or padding liquors containing vat or dispersion dyestuffs and alkali salts of sulphonated castor oil or of sulphonated olive oil, the sulphonated oil being present in amounts of at least 80g. of a 50% by weight solution per kg. of printing paste or per litre of padding solution, and subsequently subjecting the materials to temperatures of about 190-220 DEG C. for 30-120 secs.  In a modification, the printing pastes or padding liquors contain, instead of the sulphonated oil, the same quantities of other wetting agents, e.g. sodium ricinoleate, alkyl sulphonates, alkylnaphthalene sulphonates, alkylphenylpolyglycol ethers, alkyl-pyridine hydrochloride derivatives or sulphonated oleic acid amides.  Preferably, the dyestuffs are yat dyestuffs in the form of their vat acids (leuco compounds), and the high molecular weight polyester is a polyethylene glycol terephthalate.  A thickening agent or agents may be added to the printing paste or padding liquor, and an intermediate drying process may be carried out after the printing or padding.  Examples are given.
Patent GB-494323-A (GB)
Title: Improvements in and relating to rotary printing machines
IPC: B41F7/10
Filed: 1937-01-18
Abstract: 494,323. Rollers. RIVEAU, G. E. Jan. 18, 1937, No. 1498. Void. Convention date, Jan. 18, 1936. [Class 42 (ii)] [Also in Group XVI] The impression cylinder 1 of a printing- machine is constructed of a core 2 formed with dovetail recesses into which fit projections on sections 4 formed with recesses 6 in which are arranged the nuts and heads of bolts 5 securng the sections together. Impression surfaces 7 are secured to the cylinder by means of wedges 8.
Patent GB-1028387-A (GB)
Title: Step motor
IPC: H02K37/04
Filed: 1965-01-13
Abstract: 1,028,387. Electric motors. MOVIT INDUSTRIEANSTALT. Jan. 13, 1965 [Jan. 22. 1964], No. 1524/65. Heading H2A. A stepping motor has two wound field cores 7a, 7b lying laterally of the rotor 1 and exciting pole-shoes 4a, 5a, the flux circuit beng completed by further arms Sa, 8b (Fig. 3) lying at either end of the machine and making contact with a pole-shoe 46, 56 through a longitudinal yoke 10 extending between the free ends of the arms, 8a, 8b. The rotor, bearings and laminated pole-shoes 4a, 4b, 5a, 5b form a detachable unit (Fig. 5) which is inserted under pressure of a spring 16 between the ends of cores 7a, 7b and the yoke 10. The assembly is further secured by a clamping band 14 of magnetic material whose free ends are bolted through the bottom yoke of the flux-completing member 8 (which has the arms 8a, 8b) at 15. This clamp, together with arms 8a, 8b, completely enclose the machine thus providing magnetic screening. The detachable rotor-pole unit (Fig. 5) consists of lamination stacks forming the pole-shoes secured by longitudinal rivets 22 to flanges 19a on the bearing housing and an intermediate bracing ring 23. The spaces between the pole-shoes are filled with plastic blocks, and rotor end-play is adjusted by plastic washers 25, 26.
Patent GB-304593-A (GB)
Title: Improvements in ball joints for endless tracks and driving chains
IPC: B62D55/28
Filed: 1929-01-16
Abstract: 304,593. Venzlaff, R., Agahd, W., and Buck, O. Jan. 21, 1928, [Convention date]. Endless-track vehicles. - A ball joint for the links of endless-tracks and driving chains comprises a pivot pin 3 having a spherical enlargement 5, a transversely-divided bearing 2 at one end of a link engaging the ball 5, the bearing being arranged in an elevated position for engagement with the driving wheel, and fork members 8<1> at the end of the adjacent link holding the ends of the pin. The ends of the bearing 2 abut against the fork members 8<1> by means of spherical surfaces 7, and the bore of the bearing is flared outwardly at 6 to allow universal movement. Each link comprises a plate 13, a rubber tread 14, and lateral supporting rails 4 secured to the plate 13 by means of flanges 15. The links are formed with overlapping cheeks 8 having interengaging spherical surfaces 10 concentric with the ball 5. The track or chain is provided with spherical collars 11 which are mounted on the bearing 2 and act as teeth for engagement by corresponding surfaces on the driving wheel 12.
Patent GB-871558-A (GB)
Title: Improvements in observation screens for electron-optical devices
Inventor: DELONG ARMIN
IPC: H01J37/22
Filed: 1960-01-15
Abstract: 871,558. Screens for electron-optical devices. TESLA NARODNI PODNIK. Jan. 15, 1960, No. 1564/60. Class 39(1). An electron optical device such an an electron miscroscope or a diffraction apparatus has an observation screen comprising two parts, the inner auxiliary screen 4 lying, in its closed position, in the plane of the second main screen 3 and is provided with a common pivoting mechanism, whereby, during an opening movement, the auxiliary screen 4 moves first, Fig. 2, and the angular movement of the main screen 3 begins only after the auxiliary screen 4 has reached its open position. The pivoting mechanism comprises a shaft 9 bearing a cam 8 operating a shaped lever 6.
Patent GB-586000-A (GB)
Title: Improvements in or relating to secondary electron emitting electrodes, and to electron discharge devices embodying such electrodes
IPC: H01J1/32
Filed: 1944-01-27
Abstract: 586,000. Cathode materials; electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 27, 1944, No. 1588. Convention date, Jan. 27, 1943. [Class 39 (i)] A secondary-electron emitting material comprises a layer of chromic oxide covered with a suitable activating material such as caesium or rubidium. The layer may be thick enough to show the typical green colour or, preferably, is made so thin (10-<4>-10-<3> cms.) that interference colours appear. It is prepared by heating degassed pure chromium, plated on iron, or an alloy with iron, nickel or cobalt, in oxygen to produce the thin layer, or in moist hydrogen to produce the thick layer. Subsequently, the activating metal is vaporized on to the layer, baked at 250 C., heated in oxygen and again baked. The emission is stable up to 500 or 600 C., and makes the material suitable for use in a beam mixer tube having two secondary emitting electrodes 16, 18 and collector 17.
Patent GB-1110731-A (GB)
Title: Improvements in or relating to the preparation of food-stuffs
IPC: A23L11/00
Filed: 1966-01-13
Abstract: A dry food concentrate, in the form of lumps miscible with liquids upon agitation therewith, is prepared from a mixture of ready prepared ingredients by working up the ingredients to a pasty mass with water, which mass is formed into a pliable, thin uniform rippled film, which film is arranged in zig-zag folds, pressed if necessary, and dried, the folded film being cut into pieces either before or after the drying stage.  The drying may be effected by blowing a stream of hot dry air over the product. Large numbers of suitable constituents are specified, including animal and vegetable protein, carbohydrates, fats, vegetables, spices, binding and swelling agents, vitamins, and liquid bases.
Patent GB-489107-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1937-01-19
Abstract: 489,107. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO.. Ltd., and PEARCE, O. A. Jan. 19, 1937, No. 1629. [Class 40 (iv)] Bidirectional finder switches are controlled by a chain start circuit to which periodic impulses are delivered as long as a common start relay is energized, the latter being connected in a bridge circuit in such a way that in the event of simultaneous calls by subscribers wired to different levels the bridge becomes balanced when a corresponding number of finders have been successively started. Line relay L by its operation marks the position of the calling line in the marking bank and vertical bank multiples M, VW and connects battery over resistance YA, which is common to the lines occupying a level, to the common start wire PSL, whereupon relay PS energizes and connects up a sluggish selfinterrupting relay SL which delivers impulses to a chain start circuit as long as PS remains up. Assuming that no other finder is in use, relay A energizes before SR and holds over B (lower winding), which pulls up after SR has removed a short-circuit, connects battery over resistance YB to common wire X, and extends the chain start circuit. The finder hunts vertically to the marked level, whereupon VT energizes, disconnects A and makes a fresh circuit for B (upper winding). Rotary hunting then takes place and switching relay HA or HB energizes and short-circuits B. Cut-off relay K operates to ground in the group selector and L falls back. Relay PS is bridged across wires PSL, X and the pairs of resistances YA, YB and YC, YD are equal. In the case of a single call, the bridge is balanced when B operates and PS falls back, so that only one finder is started. In the case of simultaneous calls on different levels, battery is connected to wire PSL over several resistances YA in parallel, and PS remains operative until a corresponding number of finders have been started by the successive operations of SR. In the case of simultaneous calls on the same level, a second finder is not started until the first one switches through. Any finder may be artificially busied by shifting link T to the lower position. In a system arranged as in Specification 366,143 in which first choice primary finders are connected directly to group selectors, while last choice primary finders are connected thereto via secondary finders, all the finders are identical, and a distributing frame IDF is provided for making connections either to a group selector or to the banks of secondary finders. The secondary finders are controlled over a chain start circuit by relay SS, which is connected in a bridge circuit similar to that of PS. Specification 450,019 also is referred to.
Patent GB-487511-A (GB)
Title: Improvements in or relating to railway permanent way
IPC: E01B9/50
Filed: 1937-01-19
Abstract: 487,511. Permanent way of railways. MIDGLEY, J. C. TOY-. Jan. 19, 1937, No. 1637. [Class 104 (ii)] A rail chair is formed with integral jaws 5, 6, the jaw 5 being turned up out of the base leaving two lugs 8, 9 through which fixing bolts 10, 11 are passed into the sleeper. Other bolts 12, 13 are arranged in countersunk holes in the chair base under the rail. A key 15 is driven between the jaw 6 and the rail flange and is formed with a recess 17 in which is mounted a spring bar 18 formed at the end with a gib 19 adapted to enter one of a series of recesses 20-22 in the jaw 6 to prevent movement of the key. The key may be released by a screw bolt adapted to enter a hole 23 in the jaw 6 and mounted in a clamp attachable to the rail head. Rail warp is prevented by a pin 30 fitting a hole 31 in the base and engaging bevelled portions 32, 33 of abutting rail ends. In another form, the chair is formed integral with the sleeper by turning up two tongues 6 at one side of the rail and one 5 at the other side. In another form, the chairs are formed integral with pot sleepers, which are connected by a T-shaped tie-bar engaging T-shaped slots in the sleepers. A hole is formed in the top of the sleeper under the rail base to receive a block formed on the underside with a series of ribs adapted to engage similar ribs on the portion of the tie-bar under the hole, thus locking the tie-bar in position. The block is reversible end for end in the hole and terminates at one end in a half rib, enabling an adjustment of the tie-bar to the degree of half the width of a rib to be made. In laying the track the sleepers are arranged so that the ribs 5 engage the outer edge of one rail and the inner edge of the other rail, and the keys 15 are placed alternately on the outer edges of the two rails to facilitate replacement of sleepers.
Patent GB-513358-A (GB)
Title: Reflective surfaces for roadside kerbs and the like
IPC: E01F9/053
Filed: 1939-01-18
Abstract: 513,358. Road kerbs. MITCHELL, G. E. Jan. 18, 1939, No. 1671. Addition to 485,940. [Class 107] [Also in Group XVIII] The surface contour of the kerb described in the parent Specification is in the form of a concave or convex or inclined plane extending over about half or more of the exposed face of the kerb. Figs. 5, 6, 7 show sections in which tiles having respectively a plane, a convex and a concave exposed surface are employed, the exposed surface having light-reflecting corrugations &c.
Patent GB-568881-A (GB)
Title: Improvements in or relating to sound-record cutters
IPC: H04R17/04
Filed: 1941-02-07
Abstract: 568,881. Phonographs. BRUSH DEVELOPMENT CO. Feb. 7, 1941, No. 1677. Convention date, Feb. 7, 1940. [Class 40 (ii)] [Also in Groups XXXIX and XL] In a sound record cutter having a vibrating member 1, Fig. 4, an edge of which oscillates about an axis transverse thereto, a stylus holder 9 is rigidly attached to the vibrating edge and includes a pair of stylus-contacting parts 12, 12 spaced along said edge, against which parts the stylus 11 is clamped, for example by a screw 13. As shown in Figs. 1-3, the vibrating member 1 is a bi-terminal torque-type Rochelle salt-bimorph unit disposed in a frame 2 between side plates 3, 4 closed by a bottom plate 22. A strip of resilient material 15 is placed between the longitudinal top edge of the unit 1 and the upper wall of the frame 2, and a strip of insulating material 16 between the inner end of the unit and the end wall 17 of the frame, through which insulated leads 18 pass from the nuit to terminals 20. Resilient pads 6, 5 are inserted between the unit and the side walls, the pads 6 at the inner end of the unit and the pads 5 along the upper edge. The stylus holder 9 attached to the vibrating edge of the unit is a solid piece formed with a V-shaped groove curved to provide the spaced stylus-contacting points 12. In a modification, the longitudinal clamping of the unit is along its centre line ; and in another arrangement, a square-shaped unit is clamped along its diagonals. Instead of forming the stylus-contacting parts 12 by means of a curved groove in a solid piece, these contacting parts may be formed by lugs 100, 101, Fig. 11, bent out of a metal sheet from which two other lugs 96 are bent out backwards to embrace the unit 93. In this case, the clamping screw 98 may bear on the stylus at a point outside the lugs 100, 101 if the outer lug 101 is formed with a hole having a V-shaped contacting point in the opposite direction to the open V-notch of lug 100 as shown in Fig. 12. The clamping screw may screw into an end wall 14 of the frame or in a plug attached to the end of the unit. The Specification as open to inspection under Sect. 91 describes also an arrangement in which the vibrating member is an armature attached to a torsion shaft and damped at its end by pads. The face of the armature opposite the torsion shaft is formed with a curved V-shaped groove into which the stylus is clamped by a side screw. The armature vibrates like a reed between the poles of a coil energized magnet. This subject-matter does not appear in the Specification as accepted.
Patent GB-695395-A (GB)
Title: Improvements in and relating to the production of artificial fibres
Inventor: RENDALL PHILIP STANLEY
IPC: D01D7/02
Filed: 1951-01-23
Abstract: 695,395. Spinning yarns; bobbins. COURTAULDS. Ltd. Jan. 22, 1952 [Jan. 23, 1951], No. 1696/51. Drawings to Specification. Classes 120(ii) and 120(iii) In a box spinning process for the Production of artificial fibre thread, a moisture impermeable elastic sleeve of natural or synthetic rubber of the same depth as the cake to be formed and with a circumference slightly less than that of the inner wall of the box is inserted in the box: when the cake has been formed within the sleeve, it is removed from the box and with the sleeve still surrounding it is subjected to liquid treatment and to drying. The cake in its sleeve may be encased in the usual moisture permeable protective wrapping of paper or a textile material which may be inserted in the box with the sleeve; in this case there is employed a box with a recess covered by a false bottom and a double lid having a recess so that the surplus wrapping material may be accommodated in the recesses. Specification 347,160 and U.S.A. Specification 2,098,620 are referred to.
Patent GB-328252-A (GB)
Title: Improvements in gramophone records and in the manufacture thereof
Filed: 1929-01-18
Abstract: 328,252. Thornton. J. E. Jan. 18, 1929. Addition to 326,765. Compound sheet materials. - Gramophone record blanks are made by coating both sides of a support made of paper, pulp board, metal, wood, or other rigid or flexible substance, with a yielding or compressible layer of substance such as glue, rubber or any suitable plastic composition, and then applying face layers consisting of sheets of regenerated cellulose derived from cellulose xanthate as described in the parent Specification, the cellulose sheets being expanded by wetting before application to the coated support, on which they are allowed to dry and shrink. Sound grooves are finally impressed in the usual manner, and may penetrate below the cellulose face layers to the intermediate layers of yielding material. Any suitable mineral matter dyes or pigments, or resins &c. may be incorporated with the cellulose. The following processes of manufacture are described as examples. Discs, of paper are coated with a fairly concentrated solution of glue, and dried in warm, dust-free air. Each paper disc is placed between two sheets of cellulose which have been expanded by immersion in water (to which alcohol, an alkali or acid, or a flexing agent such as glycerine or a hardening agent such as formalin or alum may be added), and the triple sheet is then subjected to pressure for some time and finally allowed to dry, preferably very gradually, in warm filtered air. When continuous webs are used the three webs are pressed together as they are. drawn from separate spools, the two webs of cellulose being damped (for example by being guided between rollers immersed in a suitable liquid) before reaching the pressure rolls. The united triple web passes into a drying room, where it may be hung in loops or where it. may pass around heated cylinders. Instead of preliminary treatment of the cellulose with a hardening agent, a solution of formalin &c. may be applied to the cellulose after it has been shrunk and dried on to the supporting material. Specifications 326,766, 327,134 and 327,135 are referred to.