baber/WOPTO huggingface dataset:
Patent GB-636757-A (GB)
Title: Filter assembly for coffee makers
IPC: A47J31/043
Filed: 1947-07-10
Abstract: 636,757. Filter assemblies for coffee-makers. SUNBEAM CORPORATION. July 10, 1947, No. 18283. Convention date, Dec. 6, 1940. [Class 46] [Also in Group VI] A filter assembly for a coffee-maker of the vacuum type comprises a rod 26 having axially-spaced abutments 32, 33, a sleeve 39 freely slidable and rotatable on the rod between the abutments, an upper frame 41 fixed to the sleeve, a lower frame 34, a filter element 44 between the frames, and means whereby the lower frame may be detachably connected to the sleeve to clamp the filter element in position. The lower end of the sleeve may be threaded externally, and the lower frame may be attached to an internallythreaded nut member 38 engageable with the sleeve. In a modification, Fig. 5, the lower frame is provided with a resilient clip 53, downwardly-bowed at the centre, which may be slid along the spoke 54 so that the smaller end of the keyhole slot 59 engages a circumferential groove in the sleeve, thereby clamping the filter element in position. The rod 26 also serves to connect the coffee bowl 12 to the heater pot 11. Thrust washers 45, 46 are interposed between the upper end of the sleeve and the upper abutments 32. Specification 636,756, [Group VI], is referred to.
Patent GB-115384-A (GB)
Title: Improvements in Braking Devices for Winches and the like.
Inventor: WILD MATTHEW BROWN
IPC: B63B21/16
Filed: 1917-04-20
Abstract: 115,384. Wild, M. B. April 20, 1917. Brakes; driving-gear for winding and paying-out apparatus.-A band brake l for winches &c. comprises two steel strips l<1>, l<2>, Fig. 6, separated by a cooling space l<3> and connected at one end to a single strip l<5>. The brake rim f is separated from the drum by an air space in which vanes s, Fig. 7, are arranged to increase the cooling effect. The rim f is attached to the drum by bolts and nuts r and can readily be detached. Excessive speed in lowering a load by gravity is prevented by an automatic clutch, Fig. 1, which connects the barrel k to the shaft b and driving motor when the desired speed limit is exceeded. The clutch comprises a brake band l which is brought into action by centrifugal force acting on the weighted levers n. The speed limit is varied by adjusting the springs o.
Patent GB-816215-A (GB)
Title: Improvements in or relating to the production of polymeric esters by ester-interchange reactions
Inventor: SCHOUTEDEN FERDINAND LEONARD
IPC: B01J31/04
Filed: 1955-06-24
Abstract: A process for the production of polymeric esters involving ester-interchange reactions comprises heating an alkyl ester of an aromatic dicarboxylic acid having 1-4 carbon atoms in the alkyl group with a diol in the presence of a catalyst consisting of a lead, zinc, cadmium or manganese salt of the monoalkyl ester of a phenylene dicarboxylic acid in which the alkyl group contains 1-4 carbon atoms. A polycondensation catalyst, e.g. a glycolate such as antimony or boron glycolate, may be added to the reaction mixture.  In examples: A polyethyleneterephthalate is obtained by heating dimethyl terephthalate with glycol in the presence of zinc monomethylterephthalate until evolution of methanol ceases, and cooling the product under nitrogen (1); in a similar process antimony glycolate is employed as an additional catalyst (2); a polymer is obtained by similarly treating dimethylisophthalate and glycol in the presence of manganese monomethylterephthalate and boron glycolate (3); in a process similar to (1) dimethylisophthalate and glycol are reacted in the presence of zinc monomethyl isophthalate (4); and a polymer is obtained by heating the dimethyl ester of di-(p-carboxyphenyl)-sulphone with glycol and di-glycol in the presence of cadmium monomethylterephthalate and lead oxide.  In Example (2) the process is carried out under steadily increasing vacuum or under vacuum and in the presence of a nitrogen current alternately. Specification 805,534 is referred to.ALSO:Lead, zinc, cadmium or manganese salts of monoalkyl esters of phenylene dicarboxylic acids in which the alkyl groups contain 1-4 carbon atoms for use in polymer-forming ester-interchange reactions (see Group IV (a)) are prepared by reacting the respective ammonium mono-alkyl phenylene dicarboxylates with water-soluble salts of lead, zinc, cadmium or manganese.  In an example the monomethyl ester of terephthalic acid is dissolved in ammonium hydroxide solution and an aqueous solution of zinc acetate, cadmium nitrate, lead acetate, or manganese sulphate is added to the solution.  Zinc monomethyl isophthalate is similarly prepared.  Specification 805,534 is referred to.
Patent GB-276122-A (GB)
Title: Improvements in or relating to wicker casings for enclosing glass and other bottles containing liquids
IPC: B65D85/30
Filed: 1926-07-23
Abstract: 276,122. Hobson, A. July 23, 1926. Baskets.-Wicker casings for bottles or the like are provided with cushioning means of vulcanized rubber or like resilient-material adapted to protect the actual bottom of the bottle as well as the bottom of the casing. Fig. 5 shows the means employed, comprising either a hemispherical lower bearing surface 4<a> or a flat surface 4<b>, surmounted by a reduced neck portion 5 around which strands of the wicker bottom are laced and having a hole 8 through which one or more strands 3<x>, Fig. 3, are threaded or in which a metal securing pin is inserted. The bottle or the like 1 rests on the flanged upper surfaces 6 which project above the bottom of the casing.
Patent GB-1437864-A (GB)
Title: Moulding head for foundry flasks or core boxes of the blown sand
IPC: B22C15/24
Filed: 1974-04-26
Abstract: 1437864 Foundry moulding MEC-FOND SpA 26 April 1974 [9 May 1973] 18407/74 Heading B3F A head for blowing sand into a foundry flask or core box 1 includes a closed frame 6 in which a member 7 slides axially and has slots 8 through which sand is blown. The slots separate ramming bodies 10 each housing a filter 11 in their ramming surfaces, whereby the sand-conveying air may escape from the assembly via transverse ducts 12 which exhaust the air to atmosphere at the duct ends. Air also exhausts through passages 13 to a transverse duct 14. Sand is delivered from a hopper 21 to a container 16 having a slide valve 20; when a valve 18 is opened compressed air is fed to a chamber 17 and passes through slots 19 to deliver the sand via a chamber 15 to the flask or core box. After filling, a ram 3 is raised and the sand compressed between a plate 2 and the bodies 10. Filter support struts 24 are located in the ducts 12, and ducts 23 in the bodies 10 contain electric heaters or are traversed by hot fluid.
Patent GB-375999-A (GB)
Title: A packing for photographic plates, papers and films
IPC: G03C3/00
Filed: 1931-06-25
Abstract: 375,999. Packing sheet material. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. June 25, 1931, No. 18419. Convention date, July 23, 1930. [Class 94 (i).] A light-proof pack ing of stiff material for plates, cut films, or papers, comprises in combination two closely - interfitting trays constituting respectively the bottom and lid of the box, and an outer thin envelope as of paper pasted in light - tight manner thereon, part of the stiff material being left uncovered by the envelope to serve as a gripping member for tearing off the envelope. The packing may comprise a cardboard box consisting of two interfitting halves 1, 2, with an outer loose double-bottom 3, secured at one end to the box and having a tongue 4 at the other end which is folded against the side of the box and is left uncovered at its end 4<1> by the envelope 5 when this is pasted on. The stiff container may also be made of wood, metal foil, or stiffened tissue.
Patent GB-667128-A (GB)
Title: Improvements relating to the separation of solid materials of different specific gravities
IPC: B04C9/00
Filed: 1949-07-14
Abstract: 667,128. Centrifugal machines; washing granular materials. VOGEL, W. March 14, 1950 [July 14, 1949], No. 18596/49. Classes 23 and 82(ii) [Also in Group I] A method of separating solid materials of differing specific gravities comprises: mixing the materials with a liquid of intermediate specific gravity and feeding the mixture tangentially at one end, and discharging it tangentially at the other end, of a curved path, the outlet stream being divided into two parts along a line at all points of which the resultant forces produced by the combined forces of gravity and motion in the curved path are equal, each part containing one of the materials to be separated. As shown in the sector diagram, Fig. 3, if AB represents the horizontally disposed centrifugal force and BC represents the force of gravity, the blade 5 is arranged at right angles to the resultant AC. In one form of apparatus for carrying out the above method, Fig. 2, the mixture of the materials to be separated and the heavy liquid is fed through a nozzle 3 into a channel-sectioned trough 1. The mixture leaving the trough 1 is divided into light and heavy fractions by the blade 5, the fractions, together with the heavy liquid, being directed into sieves or filters 6, 7. Each generally cone-shaped filter comprises a helical vertical filter wall 8, the radius of the helix decreasing towards the apex of the cone. The separated fractions are discharged at the apices of the filters whilst the heavy liquid is collected by a casing 10. In another form, Fig. 8, the channel is formed by a belt 22, which moves in the same direction as the mixture, and a pair of discs 27 (not shown Fig. 8), the edges of which co-act with the belt. The mixture is fed in tangentially at 20 and is divided by the blade 5 and fed to filters 6, 7. In either form the mixture inflow pressure may be obtained by feeding the mixture to the top of a vertical pipe, the height of which is sufficient to cause the desired head, or by means of a centrifugal pump. When using a centrifugal pump, the trough of the first form may be a continuation of the pump casing, and in the second form, blades may be fixed to the discs 21, thus forming the pump.
Patent GB-1179184-A (GB)
Title: A method of Operating Two-Stroke Engines and a Gasoline for such Engines
Inventor: LEEUWAARDEN JAN VAN
IPC: C10L1/24
Filed: 1967-04-24
Abstract: 1,179,184. Lubricants; fuels. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 24 April, 1967 [26 April, 1966], No. 18688/67. Heading C5F and C5G. A two-stroke gasoline composition comprises gasoline, 20-60 vol. per cent of C 5  or C 6  branched, saturated aliphatic hydrocarbons, 0-15 vol. per cent of olefins and a lubricant; the composition containing not more than 0À1 g. (calculated as metal) of ash-forming anti-knock additives/3À78 litres of gasoline. The lubricant may be a mineral oil and may contain the amide mixture formed from C 16 -C 32  fatty acids and polyalkylene polyamines, the succimide derivative of a C 30 -C 200  alkyl or alkenyl succinic acid or anhydride and a polyalkylene polyamine, and alkaline earth metal salts of sulphonic acids.
Patent GB-1159730-A (GB)
Title: Improvements relating to Electric Rotary Switches.
Inventor: HAWORTH ROBERT
IPC: H01H21/50
Filed: 1966-04-28
Abstract: 1,159,730. Snap-action switches. SANTON Ltd. 28 April, 1967 [28 April, 1966], No. 18689/66. Heading H1N. A rotary switch includes an indexing spring 3 of which the ends 4 abut against a plurality of fixed stops or projections 9 formed on the underside of the end cover 7 or on a separate detachable ring member 6 as shown in the drawing and as described and claimed in Specification 1,159,729, to provide the required number of switch positions per revolution of the switch handle 11, and the spring 3 has secured thereto a plate member 5 mounted on the switch spindle 10 and presenting an inclined surface at 12 to the underside of cover 7 such that a minimum amount of wear is caused to the track on member 6 or cover 7 over which the indexing spring assembly moves. Plate member 5 provides lugs engaging projections on the cover for the torsion springs such that indexing spring 3 is held by a projection 9 between, its ends 4 until a torsion spring is stressed sufficiently to cause quick movement of the spring 3 between its positions defined by the projection 9, as in Specification 1,159,729.
Patent GB-1033189-A (GB)
Title: Gelatin derivatives
IPC: G03C1/047
Filed: 1965-05-04
Abstract: Sulphopropyl and sulphobutyl gelatins are prepared by reacting gelatin in aqueous alkaline media with propane sultone and butane sultone respectively.  The product is recovered by acidfying.  The process may be carried out in the cold (45 DEG  F.) for several days, or in the warm (50 DEG  C.) for 30 minutes.  The sulphoalkyl gelatins have less desensitizing action than untreated gelatins when used for photographic purposes.
Patent GB-993122-A (GB)
Title: Linear block-type copolyesters
Inventor: KIBLER CHARLES JACOB
IPC: C08G63/60
Filed: 1961-05-25
Abstract: A process for the solid phase polymerization of initial prepolymer copolyester particles having sizes substantially passing a 20 U.S. mesh screen with less than 25% passing a 200 mesh screen and having an inherent viscosity not exceeding 0.5, comprises (I) heating the particles at 170 DEG  to 300 DEG  C. for at least 1 1/2 hours to produce a product having an inherent viscosity not more than 0.1 units higher than the initial prepolymer, and (II) heating this product at a temperature of at least 20 DEG  C. below the melting-point of the final product until a copolyester is produced having a melting point at least 10 DEG  C. higher than the same copolyester produced by a single-stage process.  The process is stated to produce block-type copolyesters. The copolyester is that of (a) at least one glycol at least 75 mole per cent of which is the cis- or trans-isomer of 1: 4-cyclohexanedimethanol, (b) at least one dibasic acid of which at least 60 mole per cent is a dicarboxylic acid in which each carboxyl group is attached to a single carboxylic nucleus or different carbocyclic nuclei.  The modifying glycol may be ethylene glycol, 1: 5-pentandiol, 1: 10-decanediol, diethylene glycol, triethylene glycol, 2: 2-dimethyl - 1: 3 - propanediol, 2 - methyl - 1: 5 - pentanediol or 1: 4-di(hydroxyethyl)benzene. The carboxylic dicarboxylic acid may be terephthalic, trans-hexahydroterephthalic, p: p1-sulphonyldibenzoic, 4: 41-diphenic, 4: 41-benzophenonedicarboxylic or 1: 4- or 1: 5-naphthalene dicarboxylic acids, or may be 1: 2-di(p-carboxyphenyl)ethane, 1: 2-di(p-carboxyphenoxy)-ethane or 4: 41-dicarboxydiphenyl ether.  Up to 40 mole per cent of these acids may be replaced by carbonic, oxalic, succinic, adipic, sebacic, azelaic, alpha, ethylsuberic, alpha, alpha-diethyladipic, dimethylmalonic, orthophthalic, itaphthalic or hexahydro-orthophthalic acids or by dicarboxyl diethyl ether. The polyesters may also be modified by hydroxypivalic, hydroxybutyric or hydroxycaproic acid.  Both stages of the solid phase polymerization may be effected in a horizontal or vertical polymerization zone and in a vacuum or a current of an inert gas. The particles may be stirred or a fluidized technique may be used.  Examples describe the solid phase polymerization of polyesters of: (1)-(11) and (15) terephthalic acid, succinic acid or glutaric acid or sebacic acid or azelaic acid, and a mixture of trans- and cis-cyclohexane -1: 4-dimethanol; (12) terephthalic acid, glutaric acid, succinic acid, and a mixture of trans- and cis-cyclohexane-1: 4-dimethanol; (13) terephthalic acid, and a mixture of trans- and cis-cyclohexane-1: 4-dimethanol.  Uses.-Fibres and films.  Specifications 818,157 and 993,121 are referred to.
Patent GB-1060221-A (GB)
Title: Improvements in or relating to machines suitable for use in forming boxes
IPC: B31B3/44
Filed: 1964-05-07
Abstract: 1,060,221. Erecting boxes from blanks. BRITISH UNITED SHOE MACHINERY CO. Ltd. May 7, 1964 [May 10, 1963], No. 18989/64. Heading B5D. A machine for forming boxes from blanks has means for delivering blanks from a stack on to support means having two parallel outer edges over which the corner laps of the blank are bent and means for feeding the blank along the edges after the corner laps have been bent. The blanks 10 (Fig. 2, not shown) are fed from adjustable guide rails 70 (Fig. 1, not shown) of a magazine 30 by a separating device 32 having a transfer arm 80 with intermittently operating suction cups 82 (Fig. 3, not shown) on to a pair of parallel rails 90 with the trailing edge of the blank positioned against a pair of curved rails 130. Four bending arms 132, 134 on shafts 136 descend to the position in Fig. 1 to bend the blank corner laps 14 over and outside the rails 90, after which the blank is moved along the rails 90 by reciprocating feed slides 160 to an adhesive station 36 where end wings 16 pass between rollers 60, 190 and that adhesive in trays 192 is applied at a thickness controlled by a doctor blade. The blank is then transferred by lugs 211 to a station 38 where end wings 16 are flexed and extensions 18 are folded over rails by means of folding members and guide surfaces 212, 213. The blank is then fed to a forming station 40 and placed on a forming plate 230 (Fig. 9, not shown) corresponding to the bottom portion 11 of the blank and secured to the upper end of a rod 232 which moves to raise and lower the plate 230 between four forming rails 260, 261 which have curved extensions at their lower ends to engage and fold down side wings 12 of the blank during the upward movement, while a pair of presser plates 290 move inwardly to press both ends 16 of the blank against the glued corner laps 14 to secure the box, the presser plates 290 being secured by ball nut units 320 to move along screw shafts 321, 322. Finally, a box form 320 similar in size to the interior of the box is advanced on the upper end of a shaft 236 to fold the bent extensions 18 upwardly over the corner laps 14. The machine is powered by a motor M with a variable speed drive, rotating cam-shaft 50 and chain-and-sprocket -arrangement 52, while there are various provisions for adjustment to take different size blanks.
Patent GB-216828-A (GB)
Title: Process for the production of viscose
IPC: D01F2/08
Filed: 1923-07-24
Abstract: The process of the parent case is modified by conducting the step of dissolving the xanthate either wholly or partly at a temperature between 2 DEG  and 6 DEG  C.  The treatment with carbon disulphide may be carried out at room temperature or higher; or alternatively this and the solution steps may be conducted at temperatures between 2 DEG  and 6 DEG  C.  The parent material may be cellulose, or a conversion product of cellulose such as cellulose hydrates, hydrocelluloses or oxycelluloses; and it may be first converted into alkali-cellulose, or the reaction may be allowed to proceed simply by mixing the cellulose with alkali solution and carbon disulphide.  The solutions obtained may be worked up into artificial filaments, films, plastic masses, coatings, dressings, sizes, &c.  In one example, the starting material is either finely divided sulphate cellulose or mercerized cellulose that has been washed with water and optionally treated with dilute acid and again washed, or sulphite-cellulose that has been stirred with water, then pressed or centrifuged, and finally ground, or sulphite-cellulose that has been treated with dilute mineral acids, for example, by boiling with 0.5 per cent hydrochloric acid.
Patent GB-1070271-A (GB)
Title: Circuit arrangement for the measurement of parameters of networks or elements
Inventor: FRANKE UWE BUHN OTFRID
IPC: G01R27/28
Filed: 1964-05-07
Abstract: 1, 070, 271. Impedance measurement. FUNKWERK DRESDEN VEB. May 7, 1964, No. 19061/64. Heading G1U. A circuit arrangement for determining the complex impedance or transmission characteristics of a network 12 comprises six inductive loops 5.1, 6.1, 5.2, 6.2, 5.3, 6.3, arranged in three pairs, each loop being independently rotatable, one loop of each pair being arranged in relation to one of three coaxial lines 3.1, 3.2, 3.3 fed by a generator 1 and having arrangements 4.1, 4.2  4.3 for short circuiting the lines, so that energy is supplied to each loop with equal amplitude and phase. The other loop of each pair is arranged to produce a current in a respective one of three further lines 7, 8, 9, two of these lines being terminated by known impedances 10, 11, while the other is terminated by the network 12 being measured. Currents induced in the lines are proportional to the known impedances and to the parameters of the network being measured. The positions of the loops and of the short circuiting arrangements are adjusted until the voltage at the junction point 14 (as indicated on the instrument 13) is a null. These positions are then indicative of the resistive and reactive components of the parameter being measured.
Patent GB-256615-A (GB)
Title: Improvements in thrust collars for valve spring, adapted to cover the valve guide
IPC: F01L3/10
Filed: 1926-08-03
Abstract: 256,615. Bugatti, E. Aug. 10, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Dirt and the like, excluding. - To prevent the entrance of oil through the guide 3 for the stem of an internal - combustion engine or other valve 6, the thrust collar 1 for the valve spring is provided with a cylindrical extension 2 which covers the upper end 3 of the guide.
Patent GB-1345399-A (GB)
Title: Tubular heat exchangers
IPC: B60H1/00
Filed: 1971-06-07
Abstract: 1345399 Tubular heat exchangers SOC ANON FRANCAISE FERODO 7 June 1971 [8 June 1970] 19246/71 Heading F4S A heat exchanger comprises a stack of fins 10 through which tubes (not shown) extend between tube plates 11, 12, the tube plates being secured by the folding-over of marginal lugs 15 to the flanges 16 of header chambers 13, 14 (see Fig. 4), the plan profile of the fin stack being at least coextensive with the plan profile of the header flange 16, and the individual fins of the stack at least in the vicinity of the headers having notches formed therein. These may as shown have rounded ends. e.g. 29, 30. Alternatively the notches may be trapezoidal in shape (Fig. 3). The notches are to enable the insertion of anvils 31 used to provide support under the tube plates and header flanges whilst the lugs 15 are being folded over said flanges.
Patent GB-1463026-A (GB)
Title: Force equalized external stripper for tubular articles
IPC: B21D45/08
Filed: 1975-05-08
Abstract: 1463026 Cupping STANDUN Inc 8 May 1975 [19 June 1974] 19300/75 Heading B3Q Tubular articles 46 are stripped from a moving ram 42 by fingers 78 urged into a pre-set maximum forward position, engagement by an irregular edge 48 of an article 46 causing individual rearward movement of the fingers until substantially all of the fingers have been contacted when movement of the fingers is stopped to effect stripping. After stopping the fingers they may be urged forwardly to assist stripping. As shown the stripper is applied to removing aluminium or tin-plate can bodies after redrawing and wall ironing. The fingers 78 are biased into the forward position by pistons 66 backed by springs 70 and by a constant volume of liquid from a closed reservoir 88. A piston 92 in the reservoir is backed by a spring 96 and/or gas (e.g. air) pressure. Liquid displaced by the different rearward movements of the finger pistons 66 returns to the reservoir 88 moving the reservoir piston 92 until it encounters a stop 98 which thus stops the finger pistons in their adjusted positions. As the piston 92 engages the stop 98, or immediately thereafter, a pulse of high-pressure air is directed against the piston to assist stripping. Liquid is supplied and leakage replenished automatically through a check valve 110; the liquid may be the water-oil emulsion used for the diepack. Stop mechanism.-An electrical probe 100 actuated by the piston 92 may emit a signal matched electronically against ram movement to indicate can length so that in the event of malfunction the machine may be immediately stopped. The same operation may be performed using a signal from a pressure detector 104. Lack of any signal, indicating a missing can, may be used to automatically stop the production line. In a modification, Fig. 12, spherical finger pistons 114 are secured to the fingers 112 and have seats 116.