baber/WOPTO huggingface dataset:
Patent GB-654955-A (GB)
Title: Improvements in or relating to coating or impregnating fibrous cellulosic material with organic coating or impregnating agents
IPC: C08L97/02
Filed: 1948-12-16
Abstract: Fibres, e.g. of kraft, rag, soda, sulphate, ground wood, sulphite or alpha-cellulose pulp, cotton, jute, hemp, sisal, chopped canvas, asbestos or glass fibres or filaments are suspended in water and a partially polymerized hydrophilic, cationic urea-formaldehyde polyfunctional organic nitrogen base resin added, followed by an aqueous dispersion containing a deflocculated organic substance which is flocculated by the resin and deposited uniformly on the fibres which are felted to form paper, paperboard, cartons, laminating paper, abrasive-coated paper, filter paper, heat or electric insulation, moulded or pre-moulded articles, or air- or dust-filtering masses &c. The organic nitrogen bases may be of the formula H2N(CnH2n.HN)xH, where n and x are one or more, e.g. ethylenediamine, or tetraethylenepentamine &c., or their condensation products with halohydrins such as a -dichlorhydrin &c., or guanidines etc.; they are condensed with monomeric urea- or thiourea-formaldehyde at pH=1 to 4. The deflocculated organic substance may be an oil or a wax, amorphous, or chlorinated wax, asphalt or bitumen, wood-, gum- or treated rosin, a natural or synthetic rubber latex, or phenol-, urea-, melamine-, or furfural-formaldehyde resin or a modification thereof or alkyd, or poly-vinyl, -styrene, -acrylic, or -indene resins, or a styrene-containing polymer, or acetyl gum &c. Anionic emulsifying agents or wetting agents may be incorporated, e.g. potassium oleate or naphthenate, sodium lauryl sulphate, or sulphonated castor oil &c. 1 to 15 per cent of the cationic urea resin may be added and the suspension allowed to stand for over 30 minutes, and up to 100 per cent (on the weight of the fibres), of the impregnating substance added.
Patent GB-1428187-A (GB)
Title: 6-aminopenicillanic acid derivatives and process for the  preparation of the same
IPC: C07F9/6541
Filed: 1973-07-09
Abstract: 1428187 6-Aminopenicillanic acid derivatives POLITECHNIKA GDANSKA 9 July 1973 [21 July 1972] 32706/73 Heading C2P Novel 6-aminopenicillanic acid derivatives of the general formula where each of R<SP>1</SP> and R<SP>2</SP> is independently a hydrogen atom, or substituted or non-substituted alkyl group, aryl group, aralkyl or a heterocyclic group or together R<SP>1</SP> and R<SP>2</SP> form the O,O<SP>1</SP>-diphenyl group, Me is a cation, e.g. a hydrogen or metal atom or a tertiary amino cation and P is a substituted phosphoric acid radical having the formula where each of X and Y is independently a hydroxy, alkoxy, aryloxy, alkyl, aryl, aralkyl, heterocyclic or a substituted or non-substituted amino group, and Z is an oxygen or sulphur atom, with the provision that, when Z is oxygen and R<SP>2</SP> is hydrogen, R<SP>1</SP> shall not be hydrogen, C 1 -C 3  alkyl, phenyl or substituted phenyl in which the substituent is chlorine, bromine, fluorine, C 1 -C 3  alkyl, C 1 -C 3  alkoxy or trifluoromethyl, may be prepared by acylating 6-amino-penicillanic acid or a salt thereof with a phosphonocarboxylic acid derivative having the formula where R<SP>1</SP>, R<SP>2</SP>, P, X, Y, Z and Me are as defined above and Akt is any group which can be replaced by the radical of 6-amino-penicillanic acid or a salt thereof. The acylation reaction may be carried out under the influence of an activating agent, e.g. ethyl or isopropyl chloroformate and optionally an activation catalyst, e.g. a tertiary amine, and at a temperature in the region of - 20‹ C., and the acylation reaction proceeds at - 60‹ C. rising to ambient temperature.
Patent GB-760895-A (GB)
Title: Improvements in or relating to chain welding machines
IPC: B21L3/02
Filed: 1954-11-11
Abstract: 760,895. Welding chains by pressure. ESSER, P., [trading as MEYER, ROTH & PASTOR]. Nov. 11, 1954 [July 23, 1954], No. 32709/54. Class 83 (4). In an electric are chain-welding machine two jaws 1, 2 are applied to each abutting chain link end, the jaw 1 being of material of high electrical conductivity, e.g. electrolytic copper and forming an electrode and the jaw 2 being of strong material, e.g. steel and forming a clamping jaw for upsetting. Each jaw may be separately controlled and the pressure applied to the electrode may be less than that applied to the clamping jaw.
Patent GB-1441072-A (GB)
Title: Process for air evacuation of foods under ultra-low pressure
IPC: A23B7/148
Filed: 1974-07-24
Abstract: 1441072 Vacuum treatment of food FEHMERLING ASSOCIATES 24 July 1974 32714/74 Heading A2D A treatment of foods comprises submerging the food in an aqueous solution, subjecting the submerged food to a reduction in pressure down to 200-300mm Hg (absolute) at a rate of pressure decrease not greater than 125mm. Hg. per min., followed by a further decrease in pressure to a pressure not greater than 13mm. Hg. (absolute) at a rate of pressure decrease not greater than 12mm. Hg. per min., both the pressure decrease steps together occupying at least 28 mins, maintaining an absolute pressure of not greater than 13 mm. Hg. for a dwell time of at least 1 hour to remove gases from the cells and tissues of the food; then increasing the pressure to fill the voids in the cells and tissues (which have been formed by evacuation of the gases) with the aqueous solution, the pressure increase being at a rate not greater than 12mm. Hg. per min., up to 55-65mm. Hg. (absolute), followed by a further increase in pressure up to atmospheric at a rate not greater than 35mm. Hg. (absolute) per min., both the pressure increase steps together occupying at least 28 mins., whereby the voids in the foods are filled with the solution, and thereafter removing the foods from the vessel. The treatment is applicable to the processing of fruits, vegetables, crustacea and mushrooms. The aqueous solution is preferably a salt or sugar solution.
Patent GB-894172-A (GB)
Title: Improvements in or relating to apparatus for controlling record feeding devices
IPC: B41J11/46
Filed: 1960-09-23
Abstract: 894,172. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 23, 1960 [Oct. 22, 1959], No. 32716/60. Drawings to Specification. Class 100(4) Apparatus for controlling record feeding devices in typewriters or like machines comprises signal storage devices for comparison with counter devices to effect feeds at fast or slow speeds and to ensure that the feed is at slow speed when a stop signal is received. When a line of printing is completed a data buffer storage will contain a signal indicating the next line at which printing is required. This signal will set a live feed stopping position register and a subtractive speed control counter which through a time delay circuit will have six positions subtracted from its setting by a six position ring. A commutator fixed to the feed shaft will advance a line position indicating counter as each line is freed after a start signal has started the feed. If the subtraction from the speed control counter still leaves it set with a valve feeding will start and continue at a high speed until the value set by the commutator in the line position control counter reaches that remaining set in the speed control counter at which point circuitry effecting comparison of these values indicates identity of values and a pulse generated is effective to stop the high speed feed. Slow feed continues until circuitry com -  parting the line feed stopping position register setting with the line position indicating counter indicates identity of setting and generates a pulse to stop the slow feed. This pulse will also re-set the speed control counter while the line position indicating counter is re-set by the sensing of a mark on the forms being fed which mark is at the start of each form. Should the subtraction from the speed control counter effected by the six position ring eliminate a signal therein the feed will start at a slow speed. The high and low speed start and stop signals operate magnets which operate valve means controlling a hydraulic motor effecting the feed as described in Specification 821,685. .
Patent GB-445020-A (GB)
Title: Improvements in method and device for automatically adjusting top thread to lower thread tension in sewing-machines
IPC: D05B47/04
Filed: 1935-11-26
Abstract: 445,020. Sewing machines. SCHWEIGER, C. W., 8, Kaufingerstrasse, Munich, Germany. Nov. 26, 1935, No. 32722. [Class 112] The tension of the lower thread of a sewing machine is used as a means for auto - matically adjusting the tension of the upper thread to a corresponding degree. The lower thread a passes up through a hole b in the throat plate and is passed round the eye c of a lever e pivoted at d. According to the amount of tension on the thread a, the lever is swung about its pivot d against a plate f causing compression of the spring g. The compression of this spring governs the tension of the upper thread i between the discs h, h<1>. The swing of the lever e can be read on a scale m. The lever can be clamped in any position by the nut k. A nut o is provided for varying the tension of the upper thread independently of that of the lower thread. An additional tension spring may be placed between the nut o and disc h. The tension discs h, h<1> may have the usual automatic release, e.g. when the presser foot is raised.
Patent GB-491579-A (GB)
Title: Method of hardening objects made of artificial horn (casein) and objects made by this method
Filed: 1936-11-30
Abstract: Casein mouldings such as blanks for buttons or rods, tubes, plates, press-buttons, or combs are hardened by being given relative motion in a hardening bath such as formaldehyde.  Thus the articles may be whirled in the bath or may be given a to-and-fro motion with reference to the bath, or may be kept in motion relatively to one another and also to the bath; or the liquid may be whirled or reciprocated.  The articles may be placed in a horizontal or vertical rotary drum, which may be mounted eccentrically or the axis of rotation may be inclined to the geometrical axis, or the articles <PICT:0491579/IV/1> <PICT:0491579/IV/2> may be moved up and down in reciprocating baskets.  The articles may be given their final shape before hardening.  In the apparatus shown, Fig. 1, baskets C, D are reciprocated by means of cables E, F attached to a crank H.  In Fig. 2, the bath liquid is given a reciprocating motion by means of a piston S in a cylinder R connected with the tank A.  Besides the motions described above, the liquor in the bath may be circulated in a known manner.
Patent GB-490887-A (GB)
Title: Improvements in or relating to piano casings
IPC: G10C3/02
Filed: 1937-11-26
Abstract: 490,887. Pianofortes. TRIUMPH AUTO PIANOS (1930), Ltd., SKERRATT, H. H. G., and SKERRATT, D. L. Nov. 26, 1937, No. 32741. [Class 88 (ii)] The fall of a pianoforte slides on runners being guided by a linkage connected to the casing. In the construction shown in Fig. 1, after turning up the concaved front ledge 17 about its hinge, the fall F may be pushed rearwardly along runners 20 secured to the ends of the casing, being guided to prevent jamming, by a pair of links 22, 25 at each end of the fall, connected by pivots 21, 28 to the fall and the casing respectively, and by a longitudinal bar 24 to each other. If the ledge 17 is made integral, the front edge of the fall must be lifted and held raised during the rearward movement, the board 16a being hinged to swing inwards when engaged. In the construction shown in Fig. 6, the fall F is held in closed position on a block 20a at each end by the weight of a hinged flap 34 which overcomes the force of springs 31 acting between pins 33 on the casing and pins 32 on the arms 25. On lifting the front edge of the fall, the springs lift the rear edge (in turn lifting the flap 34) maintaining the fall substantially horizontal whilst it is moved rearwardly on to the elevated ramped runners 20b. In grand pianofortes, the linkages may be arranged below the level of the fall.
Patent GB-1089943-A (GB)
Title: Production of composite blanks
IPC: B31B105/00
Filed: 1965-07-30
Abstract: 1,089,943. Making multi-ply bags. W. ERNST, [trading as WILHELM ERNST]. July 30, 1965 [July 30, 1964], No. 32764/65. Heading B5D. Multilayer blanks, with one layer smaller than another, are cut from superimposed moving webs, of which one web 13, forming the larger layer, has previously had transverse folds 17 made in it at blank length intervals, and another web 11, forming the smaller layer has corresponding transverse weakening lines in it. Tension is applied to the superimposed webs to open up the folds in the web 13 and separate lengths of the web 11. This web is then cut into blanks. In the embodiment, the web 11 is fed continuously or intermittently through a device 12 for producing the weakening lines. In the former case the device moves with the web and in the latter case the device may be combined with a compensating device to allow the continuous feeding of the web through the rest of the apparatus. Simultaneously folds are produced in the web 13 by device 15 and held in place by guide 16. A gluing device 18 applies glue to the inner surface of the web 13 which is then combined with the web 11 by feeding rollers 19. Rollers 20, rotating at a higher speed than rollers 19, causes the web 11 to be split at the weakened lines and the fold 17 in the web 13 to be opened out. A third web 23, adhesived on 'its inner surface by gluing device 22, may subsequently be applied to the exposed surface of the web 11 by roller 24. The composite web is then cut into blanks by device 25. The web 11 may be a padding layer, and may have smaller width than the other layers which may be of paper. The stamping device 25, as well as cutting the combined web in the region of the fold 17, may also determine the outline shape of the blanks.
Patent GB-1096529-A (GB)
Title: Method of and apparatus for heating particulate material
IPC: C22B1/24
Filed: 1965-07-30
Abstract: 1,096,529. Heat treating particulate materials; rotary tilting furnaces. SPEMAG A.G. July 30, 1965 [July 31, 19641, No. 32829/65. Headings F4B and F4G. In apparatus for heating particulate material e.g. sintering, roasting or calcining pellets or manufacturing expanded clay grains, the material is heated by a burner 28 in a horizontally mounted drum 17 rotated at a speed at which the centrifugal and gravitational forces are equal, and the interior of the drum has means (not shown) for agitation of the material whilst being rotated and a rough inner surface to assist in co-rotation of the particles and drum. The speed of rotation is intermittently varied marginally above and below the critical speed and the agitation means comprise rod- or bladelike elements reciprocally mounted at or adjacent the top of the drum or gas jets. The drum is rotated on wheels 19 by motors 20 and is pivoted by an hydraulic or pneumatic cylinder 22 about a point 23 for unloading through an end cover 24 mounted on a lever 25 which is pivotable by a cylinder 26 about a point 27. The heating gases from the burner 28 pass through a conduit 29 to an identical drying and preheating drum 6 from which in turn the gases pass through a conduit 30 to a storage hopper 1 for predrying under the influence of a suction fan 31.
Patent GB-363668-A (GB)
Title: Improvements in and relating to dyes and dyeing
IPC: C09B9/02
Filed: 1930-06-13
Abstract: Anthraquinoneazine derivatives.--The sulphuric esters of anthraquinone-anthranol-dihydroazine and its substitution products are made by treating the disulphuric esters of anthraquinone-anthrahydroquinone-dihydroazine and its substitution products with reducing agents, or by treating trisulphuric esters of anthrahydroquinone-anthranol-azin<\>ge or its substitution products with acids.  In examples (1) the tetrasulphuric ester of tetrahydrodianthraquinoneazine is reduced with alkaline hydrosulphite; the resulting trisulphuric ester of anthrahydroquinone-anthranol-azine, on treatment with acids in the cold, yields the sulphuric ester of anthraquinone-anthranol-dihydroazine, (2) the same product is obtained by treating the disulphuric ester of anthraquinone-anthrahydroquinone-dihydroazine (the known disulphuric ester of leuco-indanthrone) with hydrosulphite and caustic soda, and (3) cotton is impregnated with a solution of the product of the preceding examples and the dyeings are developed by heating with dilute hydrochloric acid, with or without the addition of copper sulphate.  Specifications 334,902, 334,921, [both in Class 2 (iii), Dyes &c.], and 359,889 are referred to.
Patent GB-602915-A (GB)
Title: Improvements in warp knitting machines
IPC: D04B27/00
Filed: 1945-12-05
Abstract: 602,915. Knitting-machines. AMERICAN VISCOSE CORPORATION. Dec. 5, 1945, No. 32866. Convention date, March 27. [Class 74(ii)] To maintain a constant tension on the yarns being supplied from a warp beam to the needles of a warp knitting-machine, the path of the yarn is decreased or increased in length depending on the demand of the knitting operation. As described, yarns from two frictionally driven warp beams 2, pass over tensioning bars 11, carried by pivotally mounted and spring biassed levers 12 and thence to the warp guides G<1>, G<2>. Rods 19 are connected at one end, by a pin and slot connection, to the levers 12 and at the other end, by pivoted arms 18, to followers 17 operated by cams 16 on the main cam shaft 15. The operation of the tension bars 11 is such that when the yarn is being fed to the needles or the needles are drawing loops through the previous course loops, the bars 11 are lowered by the action of the cams 16 effecting an appropriate movement of the rods 19 to shorten the path of the yarns and to allow the yarn tension to remain constant for the increased demand. After the knitting operation the bars return to their normal positions under the action of the springs 14. Alternatively the yarn may pass over an eccentric roller which is timed to raise and lower the warps at the appropriate knitting operation. The warp beams may be driven by a single roller or by two rollers or by a belt passing between two rollers, and the ends of the beam may be disposed in guide slots.
Patent GB-1279199-A (GB)
Title: Control valve for elastic pressure fluid
IPC: F16K31/365
Filed: 1970-07-07
Abstract: 1279199 Valves ATLAS COPCO AB 7 July 1970 [16 July 1969] 32924/70 Heading F2V In a control valve, a working port 7 is selectively connectible to either an inlet port 6 or, via a chamber 12, to a vent port 8, the control being effected by means of a double valve member 9, 10. The valve member is biased by a spring 32 in a direction to close the connection between ports 6 and 7 and is movable in opposition to the spring 32, so closing the connection between ports 7 and 8, by applying a fluid pressure via a port 5 to a chamber 11, such pressure acting in conjunction with a spring 15 to move a resilient disc, and hence also a spring retainer 14, downwardly. The resilient disc is sealed at its inner and outer peripheries and is capable of moving laterally. The spring force of both the springs 15 and 32 is adjustable.
Patent GB-506644-A (GB)
Title: Improvements in resistance-welding apparatus
IPC: B23K11/24
Filed: 1937-11-29
Abstract: 506,644. Supply systems for resistance welding. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 29, 1937, No. 32942. Convention date, Dec. 14, 1936. [Class 38 (iv)] In a spot-welding supply arrangement the welding time is controlled by the charging time of a condenser which is charged through a resistance from a second condenser. When charged, the first condenser sets up a blocking voltage at the control electrode of a discharge tube controlling the welding current. The primary of a welding transformer 2 is connected in series with the primary of a transformer 4 across alternating current supply mains 3. The secondary of transformer 4 is connected between the anode and cathode of a discharge valve 5 which is rendered conductive to produce welding impulses by the over-riding effect of an alternating potential in the negatively biassed grid circuit of the valve. This alternating potential is supplied by transformer 15 which is, in turn, supplied in series with discharge valve 6 from transformer 11 connected to the supply mains 3. The discharge valve 6 is rendered conductive by the reduction in the negative bias on control grid 7 brought about when the welding switch 14 is changed over from the position shown, to start the weld. Peaked impulses of mains frequency from a source 9 are then capable of producing, in the anode circuit of valve 6, current impulses, the intensity of which can be controlled by adjustment of the phase of source 9. Simultaneously with the production of these impulses condenser 18 is charged through a rectifier 17 from a further secondary winding 16 on transformer 15. A variable condenser 19 is then charged from condenser 18 through a variable resistance 20 and the potential of condenser 19 is communicated to a second control grid 8 on valve 6 so that after a predetermined time this valve is blocked and the weld ceases. The duration of the weld is controlled by adjustment of capacity 19 and resistance 20. The welding switch 14 must be moved back to the position shown to discharge the condensers before another weld can be started. The Specification as open to inspection under Sect. 91 described a spot-seam welding apparatus in which a discharge tube controlling the welding current was so controlled that the duration of welding time and welding interval were independently adjustable. An additional winding on the transformer 15 of this arrangement charged another variable condenser through a rectifier at the beginning of the weld thereby setting up a blocking voltage at the control electrode of another discharge tube and rendering it non-conductive during the weld. At the end of the welding period the condenser discharged through a variable resistance so that after a predetermined welding interval the discharge tube became conductive to short circuit the condenser 18. This subject-matter does not appear in the Specification as accepted.