baber/WOPTO huggingface dataset:
Patent GB-148235-A (GB)
Title: Improvements in practice-key boards
IPC: G09B13/02
Filed: 1920-07-09
Abstract: 148,235. Butler, W. A., and Cooper, A. V. May 8, 1919, [Convention date]. Practising-keyboards.-(1) In a keyboard for practising the " touch " system, each bank of keys 2 is associated with a bank 26 of stationary characters 8, and each key operates an indicator 9 for the corresponding character. As shown in Figs. 2 and 3, the keys 2 are on levers 3 and are connected to links 10 formed with the indicators 9, which normally cover stationary pointers 27, Fig. 5, for the characters, the pointers being exposed momentarily when the keys are operated. The key-levers are connected to springs 6, and are arranged to engage the head 20a of a T-spring 20, stops 25 being provided for engaging the ends of the head 20a. The keys are preferably blank. (2) A bell 19, Fig. 3, is rung periodically by the space-bar 11, the hammer 18 of the bell being carried by a member 17, which is raised and released by means of a pin 16 on a ratchet-wheel 15 operated by a pawl 14 in connexion with the spacebar. The space-bar may be secured to a U-frame 12 which is mounted on pins 13, and is formed with an extension 12a carrying the pawl. (3) A slide 21, Fig. 2, representing the paper-carriage is pushed towards the right by means of a knob 24 when the bell is rung. The slide is mounted on a guide 22, and is connected to a returning- spring.
Patent GB-141592-A (GB)
Title: Improvements relating to jacquard machines
IPC: D03C3/24
Filed: 1919-08-16
Abstract: 141,592. Lavery, W., and Carter, C. S. Aug. 16, 1919. Jacquards.-Each pair of hooks a, a<1> in a doublelift jacquard is connected to the corresponding harness cord c by a double - necked or threeended chain b, the end links b<1>, b<2> of which slide alternately up the loops of the jacquard hooks, whilst the end link b<3> is connected to the cord c.
Patent GB-1276805-A (GB)
Title: Improvements in or relating to web drive and reversing means
IPC: B65H20/36
Filed: 1971-04-19
Abstract: 1276805 Ink-ribbon mechanisms BURROUGHS CORP 19 April 1971 [6 Feb 1970] 20263/71 Heading B6F An automatic ink-ribbon reversing mechanism has a cross-threaded worm 28 and a co-operating pivotal translator 34 for completing the translation of a unidirectionally driven ribbon drive shaft 20 between its two spool driving positions. The exhaustion of the ribbon prevents rotation of worm wheels 12 and 14 so that the drive to shaft 20 causes it to move axially and disengage the operative worm 22 or 24 from the appropriate worm wheel 12 or 14. Translation is thereafter completed by the cross-threaded worm 28. Detent 36 retains shaft 20 in one or other of its positions. The free-running spool is retarded to tension the ribbon with a compression ring (46, Fig. 3).
Patent GB-695609-A (GB)
Title: 4-4-diamino-stilbene compounds
Filed: 1951-08-28
Abstract: The invention comprises 4,41-diamino-stilbene compounds of the general formula: <FORM:0695609/IV (b)/1> wherein at least one X stands for a solubilizing group; one Y stands for the monovalent radical of the reaction product of 1 mol. of 4,41 - diamino - stilbene - disulphonic acid and 2 mols. of cyanuric chloride corresponding to the general formula: <FORM:0695609/IV (b)/2> and the other Y stands for hydrogen, or an alkyl, aryl, or acyl radical, or the monovalent radical of the reaction product of 1 mol. of 4,41 - diamino - stilbene-disulphonic acid and 2 mols. of cyanuric chloride; Z1, Z2 and Z3 standing for chlorine, a hydroxy group, an amino group, or an amino group substituted by an alkyl, oxyalkyl or aryl radical. The invention also includes the preparation of said compounds by reacting 1 mol. of 4,41-diaminostilbene or one of its derivatives containing solubilizing groups with 2 mols of cyanuric chloride and an aromatic amine carrying at least two aromatic nuclei linked carbonamide groups.  In examples: (1) 4,41-diamino-stilbene-2,21-disulphonic acid is reacted as its sodium salt with cyanuric chloride and subsequently with aniline to produce 4-[(2-chloro-4-phenylamino - 1,3,5 - triazyl - (6)] - 41 - [2,4-dichloro - 1,3,5 - triazyl - (6)] - diamino - stilbene-2,21-disulphonic acid.  This product is reacted with the sodium salt of 2-(41-aminobenzoyl - amino) - 5 - acetyl - amino - benzenesulphonic acid and ammonia to obtain a yellow powder; (2) as in (1) but replacing the sodium salt of 2 - (41 - amino - benzoyl - amino) - 5-acetyl - amino - benzene - sulphonic acid with the sodium salt of 2-(41-amino-benzoyl-amino)-5-amino-benzene-sulphonic acid.ALSO:4,41-Diamino-stilbenes of the general formula <FORM:0695609/IV (c)/1> wherein at least one X stands for a solubilizing group; one Y stands for the monovalent radical of the reaction product of 1 mol. of 4,41-diamino-stilbene-disulphonic acid and 2 mols. of cyanuric chloride corresponding to the general formula <FORM:0695609/IV (c)/2> and the other Y stands for hydrogen, or an alkyl, aryl or acyl radical, or the monovalent radical of the reaction product 1 mol. of 4,41-diamino-stilbene and 2 mols. of cyanuric chloride; Z1, Z2 and Z3 standing for chlorine, a hydroxy group, an amino group or an amino group substituted by an alkyl, oxyalkyl or aryl radical are useful for increasing the whiteness of undyed materials, e.g. textiles, paper, straw, leather, woods and soaps and for brightening dyed materials, when they may be incorporated in the dyestuff.
Patent GB-1507923-A (GB)
Title: Woven sliding clasp fastener method and apparatus for its manufacture
IPC: A44B19/54
Filed: 1975-05-14
Abstract: 1507923 Woven zip fasteners C MOTTA 14 May 1975 [14 May 1974 6 Dec 1974] 20404/75 Headings DIE and D1K A woven zip fastener tape 1 with a wovenin meander monofil fastener element 5 has covers 13, 15 that are woven over the loops of the meander and which leave exposed the loop ends 7 so that passage of the slide 8 is not obstructed. The weft 11 is inserted from the meander edge of the tape by an eyed needle and may weave each cover alternately and the body tape every pick so that the weft extends between both covers at the edge of the meander as shown in Fig. 1, or may be woven with two eyed needles each weaving its own cover and both weaving the body and not having weft extending between covers as shown in Figure 13, in which case cover warps may extend between both covers. or the tape may be woven with two forked needles and two wefts which are inserted simultaneously and alternately by each needle so that each weave alternately with both covers and produce a configuration similar to Figure 1. The meander monofil 26 is precrimped and is woven in a straight condition in the warpwise direction in conjunction with a flexible mandrel 28 around which the monofil is wrapped, the action of shedding the monofil, shedding the mandrel and beating-up causing the monofil to resume its pre-crimped shape. Figures 5 to 10a (not shown) illustrate the weaving cycle. Stuffer warps may extend through the monofil and the far selvedge is knitted.
Patent GB-409535-A (GB)
Title: An improved straining device for vacuum drying apparatus
IPC: F26B11/04
Filed: 1933-07-19
Abstract: 409,535. Filtering air &c. JONSSON, A. E., Liding÷, near Stockholm. July 19, 1933, No. 20430. Convention date, Aug. 31, 1932. [Class 8 (ii).] A vacuum drying apparatus comprising a rotating or oscillating drying drum has a straining device provided with cleansing means, such as projections needles or teeth, arranged on a weight-loaded holder automatically operated during the rotation of the drum and so guided or journalled that it is brought into position for a falling motion during which the cleansing is effected. In one form, the strainer 1, which is attached to an end wall of the drum, is provided with straight straining slots 2, into which extend teeth 3 arranged on a holder 4, which is slidingly mounted on a straight bar 5 secured to the drum parallel to the slots. Thus the weighted holder falls once in each direction during the rotation of the drum. The slotted part of the strainer projects from the remainder, so that the cleansing teeth can remove impurities from the slots. Resilient stops 8 are provided. In another form, the strainer plate has perforations which are cleaned by a brush of resilient needles. In a further form, the weight carrying the brush is mounted on an arm having a pivot attached to the end wall of the drum, so that the weight swings to and fro between stops as the drum rotates. These cleansing devices may be applied to cylindrical strainers. Specification 288,341, [Class 8 (ii)], is referred to.
Patent GB-223350-A (GB)
Title: Improvements in or relating to the balancing of reciprocating engines
IPC: F16F15/26
Filed: 1923-08-11
Abstract: 223,350. Rowell, H. S. Aug. 11, 1923. Engines with two or More parallel cylinders with axes perpendicular to main shaft.-In a reciprocating engine, in addition to the primary and secondary forces, forces of higher orders are balanced by reciprocating masses having a motion other than simple harmonic and driven at a multiple of the engine speed. In the case of a four-cylinder engine, a balancing mass may be driven by a connecting-rod from a crank driven at twice the engine speed by chain or spur gearing, the ratio of the length of the connecting-rod to its crank being such as to give the required modification of simple harmonic motion. The balancing-mechanism may be arranged in the crank case, or a balancing-mass may be driven from each end of the crank shaft, or two balancing-masses D<6>, D<7>, Fig. 5, or unequal weight may be driven from cranks A outside the crank case. The auxiliary connecting-rod may be dispensed with, the auxiliary crank A, Fig. 4, engaging a suitably curved slot D<4> in the balance weight D, or in a cross head connected, to the balance weight. The balance weight may be formed with a reduced portion D<5> to permit adjustment of the weight. In the case of an eight cylinder engine, the balancing masses are driven at four times the engine speed.
Patent GB-1145402-A (GB)
Title: Method of forming high temperature resistant structures and structures formed thereby
IPC: C04B35/622
Filed: 1966-05-09
Abstract: 1,145,402. Refractory materials; carbides. FMC CORP. 9 May, 1966 [23 Oct., 1965], No. 20480/66. Headings C1A and C1J. High-temperature-resistant materials, in the form of films, fibres, plates for example, are made by shaping and heating at least one glassforming oxide (i.e. B 2 O 3 , SiO 2 , Al 2 O 3 , ZrO 2 ) and a cellulosic substance in a ratio of 0À2: 1 to 2: 1 to a temperature of 200-250‹ C., preferably in an oxygen-bearing atmosphere until structurally held water is released; then heating in an inert atmosphere to 400-450‹ C. until the cellulose substance is decomposed and finally heating in the presence of a pyrolysable carbonaceous substance (e.g. CH 4 ) to 900-1200‹ C. to add carbon thereto and then cooling. The corresponding carbides may be formed by heating rapidly to 1300-2000‹ C. for a short time in an inert or reducing atmosphere. In forming the filaments of the invention the glass-forming oxide is preferably introduced in an alkali solution of the cellulose compound as a soluble compound, e.g. silicate, aluminate or borate. Insoluble hydroxide forming elements such as Zr may be introduced as a water-soluble Zr salt, e.g. Zr(SO 4 ) 2  by the injection spinning method.
Patent GB-1042444-A (GB)
Title: Improvements in and relating to the hydrogenation of organic compounds
IPC: B01J23/70
Filed: 1965-05-14
Abstract: Hydrocarbons are reduced with gaseous hydrogen in the presence of nickel obtained by reduction of nickel chloride with triethylsilane. In examples the reductions of cis-cis-cyclo-octa-1:5-diene, toluene, hept-1-ene, cyclohexene, allylbenzene and limonene to, respectively, cyclooctane, methylcyclohexane, heptane, cyclohexane, propylbenzene and paramenthane are described.  Comparative data describe such reductions using Raney nickel.ALSO:Organic compounds are reduced with gaseous hydrogen in the presence of nickel obtained by reduction of nickel chloride with trimethyl-silane. Reduction may take place at -C = C-, = C = O or -N = O linkages.  Examples describe the reduction of benzyl alcohol to hexa-hydrobenzyl alcohol, methyl terephthalate to methyl hexahydrophthalate, 3 : 3 - dimethylbutan - 2 - one to 3 : 3 dimethyl - butan - 2 - ol and phenol to cyclohexanol.ALSO:In a process for the reduction of an organic compound with gaseous hydrogen there is used a nickel catalyst which has been prepared by reducing nickel chloride with thiethylsilane. Additionally the catalyst may contain a minor proportion of an alkaline compound e.g. NaOt/solution.
Patent GB-662903-A (GB)
Title: Process of preparing phenothiazine derivatives
Filed: 1949-08-08
Abstract: Phenothiazine or a derivative thereof unsubstituted at the N-atom is reacted with a halo-acyl halide to give a 10-halo-acyl-phenothiazine; the latter may be reacted with a primary or secondary amine (which may be cyclic) to form a 10-aminoacyl-phenothiazine.  Both steps may be carried out in the presence of a solvent.  Examples show the preparation of 10-chloracetyl-, 10-(a -bromopropionyl)-, 10-diethylaminoacetyl, 10 - (a  - diethylaminopropionyl)-, 10 - (b  - cyclohexylaminopropionyl)-, 10 - (a  - isopropylaminobutyryl)- and 10 - N - piperidinoacetyl - phenothiazines.  3 - methyl -, 3 : 7-dimethyl-, 3-acetylamino- and 3 : 7 -dinitrophenothiazines may also be used as starting materials.  Specified haloacyl halides are chloracetyl chloride, a -bromopropionyl bromide, a  - bromobutyryl bromide, b  - chloropropionyl chloride and b -bromopivalyl chloride. Specified amines are diethylamine, cyclohexylamine, isopropylamine, piperidine, 2-methyl-piperidine, 2-ethyl-piperidine and morpholine. The Specification as open to inspection under Sect. 91 refers also to the haloacylation of phenothiazine sulphoxide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-662020-A (GB)
Title: Improved method of making pigmented polystyrene
IPC: C08F257/02
Filed: 1949-08-08
Abstract: Coloured polystyrene is prepared by polymerizing a mixture of a liquid styrene or solution of polystyrene in styrene with a colour concentrate comprising polystyrene and a styrene-insoluble, heat-stable pigment.  10-25 per cent of pigment, e.g. titanium dioxide, copper phthalocyanine, zinc sulphide, mixtures of barium sulphate and zinc sulphide, cadmium sulphide, carbon black and ferric ferrocyanide, is milled on hot rolls into plasticized polystyrene and the concentrate is dissolved in the styrene to give a liquid composition of a viscosity of at least 35 centipoises at 25 DEG  C. Plasticizers, e.g. dioctyl phthalate, tricresyl phosphate and dibutyl phthalate, mould-releasing agents, e.g. butyl stearate, and soya bean oil may be added and the product employed directly or ground as a moulding powder for articles such as combs.
Patent GB-333699-A (GB)
Title: Improvements in or relating to means or appliances for automatically supplying disinfectants or an antiseptic to flushing cisterns and other tanks
IPC: E03D9/03
Filed: 1929-07-05
Abstract: 333,699. Swallow, W., Thomas, H. J., and Doyle, B. July 5, 1929. No Patent granted (Sealing fee not paid). Water-waste preventers, disinfecting-apparatus for. - An appliance for automatically supplying disinfectant &c. to a flushing cistern or other tanks comprises a detachable chamber 1, the side walls of which are prolonged to form an open compression chamber 3, the air pressure in which controls the supply of disinfectant. The disinfectant is contained in the chamber 1 which is provided with a hole 5 fitted with a threaded tubular nozzle 6 closed by means of a threaded flanged stopper 7 and a leather washer 9. The chambers 1 and 3 communicate by means of a U-shaped pipe 11, one end 13 thereof being situated in a recess 10 in the stopper 7. The device is placed within the cistern etc.; when the latter is filled, the compression in the chamber 3 forces air through the pipe 11 into the chamber 1 so that disinfectant is discharged when the pressure is relieved by flushing. Modified stoppers for the hole 5 are shown in Figs. 12 and 21. In the former case, communication between the chambers is established by means of a passage 14 and the nozzle may be dispensed with. the projections 16 entering suitable slots and coacting with inclines in the bottom wall 4 of the container to make a tight joint by means of the washer 9. The form shown in Fig. 21 is adapted for use when the hole 5 is situated in the side wall of the container 1.
Patent GB-416878-A (GB)
Title: The manufacture of vat dyestuff preparations in powder form particularly suitable for printing
IPC: C09B67/28
Filed: 1933-07-21
Abstract: A finely divided paste of a vat dyestuff or of a leuco compound thereof is incorporated with a wetting and/or a dispersing agent and/or an accelerator of fixation used in Specification 364,052, and the resulting mixture is rapidly dried by finely distributing it in a current of hot air or other gas.  In examples: (1) 6 : 6<1>-dichlor-4 : 4<1>-dimethylthioindigo in the form of an aqueous suspension is mixed with benzylsulphanilic acid and dried by finely distributing it in a current of heated air; (2) 6 : 6<1>-dichlor-4 : 4<1>-dimethylthioindigo is mixed with benzylsulphanilic acid, iron sulphate and the sulphuric ester of oleic acid ethylanilide and dried as in the previous example. Specification 248,811, [Class 2 (iii)], also is referred to.  The Specification as open to inspection under Sect. 91 comprises also examples in which 6 : 6 - diethoxythioindigo, 5 : 5<1> - dichlor - 4 : 4 : 4<1> : 7 : 7<1> - tetramethylthioindigo and dibromanthanthrone are employed.  The use of dimethylsulphanilic acid, naphthalene a -sulphonic acid and stannous chloride is mentioned.  This subject - matter does not appear in the Specification as accepted.
Patent GB-482641-A (GB)
Title: Annular valve
IPC: F16K15/08
Filed: 1937-07-26
Abstract: 482,641. Check valves. HOERBIGER, J. R., and HOERBIGER, A., (trading as HOERBIGER & CO.). July 26, 1937, No. 20658. Convention date, Aug. 26, 1936. [Class 135] In an automatic annular valve in which a flat valve-plate f moves between a seat a and a guard i, the staggered ports b, k in the seat and guard are inclined and set in alignment so that the medium crosses the gap without change of direction therein. The ports are preferably of nozzle-shape.
Patent GB-698253-A (GB)
Title: Improvements in or relating to pyrazoline sulphonic acids
Inventor: KENDALL JOHN DAVID
Filed: 1950-08-23
Abstract: A process for the production of aryl-substituted pyrazoline compounds of the general formula <FORM:0698253/IV (b)/1> where Ar1 is an aromatic radical containing a sulphonic acid group, R1 is a hydrogen atom or a substituted or unsubstituted hydrocarbon group, and R2 is a substituted or unsubstituted hydrocarbon group, comprises condensing a ketone of the general formula R2COCH= CH-R1 with an aryl hydrazine sulphonic acid Ar1NH.NH2 in an acid medium. The acid medium may be inorganic or organic, e.g. it may contain acetic and other carboxylic acids containing up to 4 carbon atoms. Ar1 may be a phenyl, diphenyl, diphenyl ether, naphthalene or other aromatic residue containing a sulphonic acid group.  As hydrocarbon radicals at R1 and R2, alkyl, aryl or aralkyl groups which may be substituted are mentioned, e.g. methyl, ethyl or other alkyl, phenyl, naphthyl or benzyl.  In an example: (1) 1-p-sulphophenyl 3 : 5-diphenylpyrazoline is obtained by reacting phenyl hydrazine p-sulphonic acid and benzalacetophenone in a medium acidified with sulphuric or hydrochloric acid.  Similarly prepared (in aqueous acetic acid medium) are (2) 1-m-sulphophenyl 3 : 5-diphenyl pyrazoline from phenyl hydrazine m-sulphonic acid and benzolacetophenone; (3) 1-p-sulphophenyl-3-methyl-5-phenyl pyrazoline from phenyl hydrazine p-sulphonic acid and benzal acetone; (4) 1-p-sulphophenyl - 3 - p - chlorophenyl - 5 - phenyl pyrazoline from phenyl hydrazine-p-sulphonic acid and 4-chlorochalkone; (5) 1-m-sulphophenyl - 3 - phenyl - 5 - p - acetaminophenyl pyrazoline from phenyl hydrazine m-sulphonic acid and 4-acetylaminochalkone; (6) 1 : 3-di-p-sulphophenyl - 5 - phenyl pyrazoline from phenyl hydrazine p-sulphonic acid and 4-sulphochalkone (prepared from benzaldehyde and acetophenone p-sulphonic acid).  The products are of use as whitening and brightening agents for wool.  Specification 670,857 is referred to.
Patent GB-1519126-A (GB)
Title: Composition and method for the hydrolysis of glycerol esters
IPC: C07C27/02
Filed: 1977-05-18
Abstract: 1519126 Lipases DOW CHEMICAL CO 18 May 1977 [1 June 1976] 20985/77 Heading C3H A composition useful for the hydrolysis of a glycerol ester in an aqueous medium comprises a mixture of from 15-95 units of Rhizopus arrhigus lipase and from 5-85 units of Candida cylindnacea lipase per 100 units of lipase present. If desired other enzymes which enhance the synergistic effect may also be present. Examples describe the hydrolysis of triglycerides and the subsequent estimation of the glycerol present in the serum by a colourincident method.
Patent GB-880702-A (GB)
Title: Improvements in non-woven fabrics comprising bonded fibres
IPC: D04H1/54
Filed: 1958-07-02
Abstract: 880,702. Agglutinated fibrous fabrics. LIPACO S.A. July 2, 1958 [July 3, 1957 ; Oct. 17, 1957], No. 21161/58. Class 140. Non-woven textile fabric comprises regenerated cellulose fibres cross-linked to bring their water-imbibition to between 35 and 90%, a substantial portion of the fibres being bonded to one another by coalescence over short lengths of the fibres. Coalescence is effected by treatment with aqueous caustic soda solution. Fibres made by the viscose or cuprammonium processes may be used. Suitable reagents for effecting cross-linking are formaldehyde, glutaraldehyde, glyoxal, urea-formaldehyde, dicyandiamide-formaldehyde, melamine-formaldehyde, guanidine-formaldehyde and methylol-amino-epihalohydrin compounds; also resins formed by reaction of formaldehyde and acrolein or acetone and formaldehyde; polyepoxy resins such as condensation products of epichlorohydrin with ethylene glycols. The fibres may be treated with the cross-linking reagent while in the gel state following their production the cross-linking reagent may be applied in substantially precondensed monomeric or low polymer state, as an aqueous solution or dispersion and may contain a catalyst and finishing agent. The caustic soda solution may be applied to the cross-linked fibres by spraying the fibres on a porous moving belt, after which the fibres may be compressed between rolls, neutralized, washed and dried. As shown (Fig. 1), a layer of cross-linked regenerated cellulose fibres 1, is laid in porous moving belt 2 and passed between pairs of rollers 3, 3<SP>1</SP>; 4, 4<SP>1</SP> and 5, 5<SP>1</SP>. Aqueous caustic soda solution is run from tank 6 through pipe 7 and nozzles 8, 9 and 10 on to the layer of fibres. Excess caustic soda solution is collected in basin 11 and returned to tank 6 through pipe 12. The fibrous layer then passes between squeeze rolls 13,13<SP>1</SP>, through bath 14 containing a solution of acetic acid for neutralization, bath 15 containing neutral wash water and drier 16. Fig. 2 shows a cross-section of non-woven fabric according to the invention, wherein the fibres retain their identity and there are areas (as at 17) of coalescence with adjacent fibres. Specifications 796,815 and 872,656 are referred to.
Patent GB-1476842-A (GB)
Title: Linear period thermistor temperature oscillator
IPC: H03K3/023
Filed: 1975-05-19
Abstract: 1476842 Measuring temperature  WESTINGHOUSE ELECTRIC CORP 19 May 1975 [14 June 1974] 21155/75 Heading G1N A linear period thermistor oscillator comprises an amplifier 10 having at least a first and a second input, first and second feedback paths respectively connecting the amplified output with the first and second inputs, the first path including an integrator R 3 C and the second path including a voltage divide network R 1 , R 2  in which a thermistor R t  having a resistance which varies non-linearly with temperature is connected.