baber/WOPTO huggingface dataset:
Patent GB-281993-A (GB)
Title: An improved process for the production of artificial materials and/or articles made therefrom, from the condensation products of urea or urea derivatives with formaldehyde or substances yielding formaldehyde
Inventor: SCHMIDT FRITZ
IPC: C08L61/24
Filed: 1927-06-16
Abstract: 281,993. Schmidt, F. Dec. 8, 1926, [Convention date]. Samples furnished. Albumen &c. compositions; amorphous cellulose &c. compositions.-Candensatian products of formaldehyde with urea or its derivatives are formed in the presence of carrier substances, or mixed with such substances prior to dehydration, and are then dehydrated while being kept in motion. It is preferred to mix urea with the carrier and then to add formaldehyde, but the reagents may also be mixed with the carrier simultaneously or after the reaction has begun. Other substances forming resinous products with formaldehyde, such as urethane, aniline, benzanilide and other anilides, p-toluenesulphonamide and other amides, and phenol may be added with the urea. Suitable carrier substances are casein, cellulose, and its derivatives, natural and artificial resins, polymerized vinyl esters and fibrous or amorphous fillers such as wood meal, peat meal, or alumina; mixtures of carriers also may be used, such as casein and wood meal or methyl cellulose and peat meal. When casein, cellulose, or a cellulose derivative is used, softening agents, gelatinizing agents, and/or volatile solvents may be incorporated therewith. The dehydration of the condensation products may be effected in kneading or rolling apparatus under ordinary or diminished pressure. In one example, casein is kneaded with water, with or without a volatile solvent such as ethylene chlorhydrin, and the mass is mixed with urea and ethyl urethane. Formaldehyde is then added and the mixture is kneaded or rolled, at ordinary or diminished pressure. at 40-50‹ C. while dehydration proceeds. The product may be moulded directly or after pulverization. In another example, the same procedure is followed except that wood meal and a black colouring matter are included in the mass to which the formaldehyde is added. Specifications 171,094. 181,014, 238,904, 246,126, and 249,101, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-732010-A (GB)
Title: Process for the treatment of damaged skins, hides and leather
IPC: C14B1/56
Filed: 1953-06-11
Abstract: 732,010. improving damaged hides. LAIMBOCK, J. B. June 11; 1953 [Jan. 5, 1953; June 4, 1953], No. 16137/53. Class 76. Skins, hides and leather damaged, e.g. by barbed wire, or when skinning, or by salt-stains, are abraded before or after dyeing through openings in a stencil, said openings being chosen to form a pattern and expose the damaged places in the skin. Abrasion may be by means of a jet of hard fine particles such as of sand, steel, glass or carborundum, or by means of cards or brushes or emery paper, steel wool, shark or watersnake skins. If desired, counterpressure may be applied to the skin opposite the openings in the stencil. The treatment may be applied to either side of the skin. In the case of an undyed skin, dyeing produces a design in which the abraded portions are darker: with dyed skins, the abraded portion is lighter. Colours may subsequently be applied through the same stencil by brushing or spraying. Abrasion may if desired be continued until a perforated pattern is obtained.
Patent GB-729104-A (GB)
Title: Metal extrusion presses
IPC: B21C29/04
Filed: 1953-06-12
Abstract: 729,104. Extruding. HYDROPRESS, Inc. June 12, 1953 [June 21, 1952], No. 16201/53. Class 83 (4). An extrusion press has a mandrel 18 reciprocable within a bore 19 of the extrusion plunger 17, and cooling fluid is admitted to the bore 19 for cooling the mandrel. The latter is connected to a ram 21 movable in a hydraulic cylinder 22 secured to the main ram 13. A valve 31 on the ram 21 engages a seat 30 when the mandrel is withdrawn rearwardly and the cooling fluid is then supplied through a conduit 29 to a chamber 28 which communicates with the bore 19. Longitudinal grooves may be provided in the periphery of the mandrel or in the wall of the bore 19 to facilitate the passage of cooling fluid. An air vent 40 is provided. In another embodiment the mandrel passes through the main ram and is actuated by a hydraulic ram separate from and disposed to the rear of the main ram.
Patent GB-401777-A (GB)
Title: Improvements relating to pipe joints
IPC: F16L21/04
Filed: 1932-06-08
Abstract: 401,777. Pipe joints. WILSON, P. H., 21, Trevose Gardens, Sherwood, Nottingham, and STANTON IRONWORKS CO., Ltd., Stanton-by-Dale, near Nottingham. June 8, 1932, No. 16215. Addition to 282,160, [Class 99 (i), Pipes and tubes, Joints &c. for]. [Class 99 (i).] In a pipe joint according to the parent Specification the packing g is partly compressed by an axial movement of a ring r independently of the rotational movement of the encircling ring f. The ring r is loosely keyed to the ring f by lugs r<2>, s and is actuated by studs t screwing into the ring f. Specifications 343,217 and 374,493 are referred to.
Patent GB-1526558-A (GB)
Title: Phenylalanine derivatives and processes for their production
IPC: C07C67/00
Filed: 1975-09-08
Abstract: 1526558 p-Guanidino phenylalanine derivatives CHOAY SA and YISSUM RESEARCH DEVELOPMENT CO 8 Sept 1975 [9 Sept 1974] 16303/78 Divided out of 1526557 Heading C2C The invention comprises compounds represented by the general Formula III wherein R 1  represents either hydrogen or a tert-butyloxycarbonyl group which are prepared by reduction of tert-butoxycarbonyl-pnitrophenylalanine to form tertbutoxycarbonyl p-aminophenylalanine followed by guanidation with 1 - guanidino - 3,5 - dimethyl - pyrazole nitrate or optionally hydrolysis to remove the tert-butoxycarbonyl moiety.
Patent GB-1279343-A (GB)
Title: Machine for stacking layers of objects on a loading surface
IPC: B65G57/00
Filed: 1970-04-07
Abstract: 1279343 Stacking articles SVENSK INDUSTRIS KONSTRUKTIONS-OCH BERAKNINGSKONTOR SIKAB AB 7 April 1970 [8 April 1969] 16324/70 Heading B8C A machine for stacking layers of objects, e.g. bags 22 on a loading surface, e.g. a container 7, comprises an open-bottomed cap 8 having a top 16 provided with suction openings 17 communicating with a suction pipe 10 means 24 for feeding the objects from a conveyer surface 21, 26 into the cap 8 and forming a layer pressed against side walls 12, 13, 14 of the cap, valve means 19 for applying suction for engaging the layer against the top 16 by suction means 28 for displacement of the conveyer surface relative to the cap 8 to a position in which the bottom of the cap is exposed, and means 11 for positioning the cap relative to the loading surface for delivery of the layer of objects in the cap in which position the suction at the suction openings is interrupted by the valve means 19. As shown, the position of a container 7 is adjustable vertically downwardly step-by-step in synchronism with the delivery of layers from the cap into which the bags are pushed by a ram 24 along a slidable surface 26 forming part of the conveyer surface 21, 26. In a modification, Fig. 3 (not shown), the walls 12, 14 of the cap are displaceable towards each other against spring means (30) by a pneumatic cylinder (31). An additional wall opposite to wall 13 may be provided and operated similarly for compacting the layer in which case the surface 26 and the ram 24 are dispensed with, the cap being lowered over the bags 22 on the surface 21. A pneumatic cylinder 33 is operative through a lever 35 to disconnect a clutch on the drive mechanism of the machine, if there is a leakage of the vacuum at the cap due to a missing object in the cap. In alternative arrangements the surface 26 may be fixed, with the loading surface positioned beside the surface 26 or the bags may be moved directly into the cap by the surface 21.
Patent GB-1342311-A (GB)
Title: Process for the production of citric acid by submerged fer mentation
IPC: C12P7/48
Filed: 1971-05-21
Abstract: 1342311 Citric acid JUNGBUNZLAUER SPIRITUSUND CHEMISCHE FABRIK AG 21 May 1971 [1 June 1970] 16332/71 Heading C2C Citric acid is prepared by submerged fermentation of carbohydrate-containing material by means of Aspergillus niger in the presence of potassium ferrocyanide K 4 [Fe(CN) 6 ].3H 2 O as inhibitor in an amount less than 500 p.p.m., and in which the inhibitor is added in doses of up to 0.05 to 10 p.p.m. in relation to the total amount of solution. Sugar, partially purified by decationization may be used as the carbohydrate, and the additions may start at the time of inoculation or during the process.
Patent GB-347922-A (GB)
Title: Multiple pole compressed air blow-out electric switch
IPC: H01H33/02
Filed: 1930-05-27
Abstract: 347,922. High-tension switches. SIEMENS-SCHUCKERTWERKE A K T. - GES., Siemensstadt, Berlin. May 27, 1930, No. 16368. Convention date, Dec. 20, 1929. [Class 38 (v).] Pneumatic actuation; pneumatic blow-outs. - An intermediate container 10 for compressed air carries blast pipes 11 of paperboard or solid woven material and a cylinder 20 in which is the driving piston 23. The movable contact rods 14 slide in guides 17 and are connected by insulating tubes 15 with a cross-piece comprising two iron plates, as 26, to which the piston-rod 16 is connected. Terminals 18, 19 and a travelling frame 25 are provided.
Patent GB-717570-A (GB)
Title: Electrical connectors for making a tapping from a linear conductor
Inventor: O'BRIEN JOSEPH FRANCIS
IPC: H01R25/16
Filed: 1951-04-20
Abstract: 717,570. Two part couplings. PIERCE FOUNDATION, J. B. April 20, 1951, No. 16376/54. Divided out of 716,315. Class 38(1). A contact intended for use in a socket-outlet box and to be engaged by a plug for making a tapping from a continuous linear conductor 15, comprises an angle element 16, 27, limb 16 being threaded to receive screws 28 which, when tightened, clamp the element 16, 27 to the conductor 15. A lug 25 on the limb 16 carries plug-engaging contacts 18. Fig. 3 shows a different contact 18a. Specification 630,096 is referred to.
Patent GB-242912-A (GB)
Title: Improvements in or in connection with toy projectors
IPC: F41B7/00
Filed: 1925-04-17
Abstract: 242,912. Newbon, H. A. April 17, 1925. Addition to 237,029. Projectors and projectiles.-The toy pistol or projector described in the parent Specification is modified by the provision, in lieu of the distensible propelling agent, of a compression spring f disposed in a rearward extension b of the pistol. The invention also consists in forming the trigger device g in such a manner that it engages a stop or groove c<1> in the projectile c pending discharge-
Patent GB-938968-A (GB)
Title: Improvements in or relating to apparatus for making mouthpiece cigarettes
IPC: A24C5/47
Filed: 1961-05-05
Abstract: 938,968. Cigarette making machines. T. ROWLANDS, and MOLINS MACHINE CO. Ltd. May 4, 1962 [May 5, 1961], No. 16382/61. Class 130. Apparatus for making mouthpiece cigarettes in which components consisting of cigarette lengths C and mouthpiece portions M, to be united together are carried lengthwise on a conveying surface 1, from which they are pushed in a sideways direction, comprises a stop 25 to arrest lengthwise movement of the leading component and suction means 24 to assist urging at least one other component to continue its lengthwise movement while the components are being pushed sideways so that they are abutted endwise. The surface 1 consists of an endless airpervious conveyer which runs over an elongated suction port 6. Cigarette lengths C are fed on to the conveyer 1 and double length mouthpiece portions M are fed between alternate cigarette lengths as described in Specification 876,732. A braking device 9, as described in Specification 917,701, ensures that the mouthpiece portion M abuts the end of the leading cigarette length C. The assemblies of cigarette length, mouthpiece portion, and cigarette length are delivered sideways after the leading cigarette length has abutted against the stop 25 by a reciprocating pusher 16 similar to that described in Specification 917,701. Large suction ports 24 extending nearly across the full width of the surface 1 ensure that the trailing cigarette length C continues to move lengthwise after sideways movement has commenced so as to abut the double mouthpiece portion M.
Patent GB-594182-A (GB)
Title: Improvements in or relating to the manufacture of condensation products from substances containing reactive methylene or methine groups
IPC: C07B37/00
Filed: 1945-06-27
Abstract: The complex of caustic potash with an acetal, ketal or dialkyl ether of ethylene glycol, described in Specifications 580,922 and 582,191 is used to catalyse the condensation of substances containing a reactive methylene or methine group, namely diesters of malonic or mono-alkyl malonic acids, esters of aceto-acetic or mono-alkyl aceto-acetic acids, benzyl cyanide and aceto-nitrile, with an a ,b -unsaturated aldehyde, ketone or ester.  The a ,b -unsaturated compounds include diesters of maleic and fumaric acids, benzal-acetone, benzal-acetophenone and butylidene-butanol.  The complex is prepared as described in the Specifications referred to and the reactants added thereto when an exothermic reaction occurs which is completed by heating to not more than 120 DEG  C.  The mixture is hydrolysed with water or dilute acid.  In the former case, the caustic potash may be recovered by evaporation with organic liquids as described in Specification 595,128.  In examples, the complex of KOH with acetaldehyde-dipropylacetal is used to condense diethyl malonate with diethyl maleate to yield ethyl propane-1,1,2,3-tetracarboxylate; diethyl malonate with benzal-acetophenone or benzal-acetone giving ethyl a -carbethoxy-b -phenyl-g -benzoyl (or acetyl)-butyrate; ethyl aceto-acetate with diethyl maleate to yield triethyl - a  - acetyl - tricarballylate; benzyl cyanide with diethyl maleate giving diethyl-3-phenyl - 3 - cyano - propane - 1,2 - dicarboxylate; aceto-nitrile with benzal-acetone yielding b -phenyl-g -acetyl-butyro nitrile; and ethyl acetoacetate with butylidene-butanol yielding 2-ethyl-3-propyl-4-acetyl-4-carbethoxy-butane-1-al.
Patent GB-745167-A (GB)
Title: Improvements in tools for inserting wire hook fasteners in transmission belts
IPC: F16G3/00
Filed: 1953-06-16
Abstract: 745,167. Belt fastening appliances. MASTABAR BELT FASTENER CO., Ltd., and TEBB, B. June 15, 1954 [June 16, 1953], No. 16488/53. Class 80(1) In a belt fastening appliance for securing wire hook type fasteners in a belt end, and comprising two mechanically operated jaws 5, 6 and a slotted bar 4 for supporting a row of fastener hooks, an additional deeper slot 4c is provided at the end of the bar 4 to accommodate and align the end fastener of a length of fasteners in a wide belt whilst a further length is applied and to allow for the change in distance between the points and the loops of the hooks when they are forced into the belt. Specification 508,198 is referred to.
Patent GB-420831-A (GB)
Title: Improvements in or relating to a method and apparatus for controlling processes of evaporation or crystallisation
IPC: G01N33/14
Filed: 1933-06-08
Abstract: The concentration and crystallization of solutions e.g. of sugar, undergoing evaporation is controlled by recording continuously on a diagram sheet the actual boiling point of the solution and the corresponding boiling point of <PICT:0420831/III/1> <PICT:0420831/III/2> the pure solvent under the same conditions, determining from a scale supported by the latter recording means the concentration of solid in, and the degree of supersaturation of, the solution and modifying the temperature and vacuum conditions correspondingly to secure optimum conditions for crystallization. The recording device for measuring the boiling point of the pure solvent under temperature and pressure conditions corresponding to those of the massecuite comprises three tubes 1, 2, 3, connected at their lower ends by tubes 6, 7 and mounted on the massecuite pan which also supports a recording drum 13.  The tubes 1, 2 are also connected at their upper ends, the tube 1 being made of glass and serving as a vacuum indicator, while the tube 2 contains an inner metallic tube 5 communicating at its lower end with the vacuum connections of the boiling pan through a cock 8.  The tube 3 comprises two sections 3<a>, 3<b> the upper section 3<a> containing a float 10 which follows the level of the mercury in the tube and carries on a rod 11 a pen 12 which records readings on the drum 13. The dimensions of the tubes 1, 2, 3, 5, are calculated so that when the surface of the mercury moves in the tubes 1, 2 according to variations in the vacuum the pen 12 records corresponding variations in the boiling temperature of the solvent.  A second pen 14 records simultaneously on the drum 13 the actual boiling point of the massecuite and is operated by a double branched reservoir 15, Fig. 9, containing mercury situated in the evaporating pan 16 and communicating at its upper end 18 with a steel tube 22 containing float apparatus supporting the recording pen 14 and at its lower end with a filling plug and check valve 17<a> details of which are given. Details are also given of the construction of the transparent scale attached to the upper pen 12 from which readings are obtained directly of the concentration and supersaturation of the solution.
Patent GB-410977-A (GB)
Title: Improvements in or relating to rubber upholstery
Filed: 1933-06-09
Abstract: Sponge rubber upholstery padding consists of an upper structure of sponge rubber produced from a foamed aqueous dispersion and a lower supporting structure of microporous soft vulcanized rubber in cohesive combination therewith.  Either or both the upper and lower structures may be formed from assembled layers of different density and the upper layer may be associated with a layer of rubberized hair or of ordinary horsehair; further, one of the faces of the structure can be formed with open air cells.
Patent GB-292467-A (GB)
Title: Sewing machine for hosiery
IPC: D05B7/00
Filed: 1928-06-07
Abstract: 292,467. Soc. Les Fils de Valton et Cie. June 18, 1927, [Convention date]. Knitted-fabric sewing- machines are provided with a reciprocating needle 17 entering the spaces between the pins 5 of the intermittently rotated comb 4 from the rear of the pins, and a continuously rotating looper 18. The looper is mounted on the shaft 8 driven by a pulley 9 from an electric motor 12. The shaft 8 reciprocates the needle through the eccentric strap 21, link 22, crank 23 shaft 24, lever 26, slide 20 and stirrups 19. The shaft 8 also moves the comb 4 step by step by a pawl 15 operated by a link 14 and eccentric strap 13. The rotating looper co-operates with the needle to form chain stitches.
Patent GB-999235-A (GB)
Title: Improved drying oils and process for preparing them
IPC: C07D263/14
Filed: 1963-04-26
Abstract: Oxazoline derivatives stated to have the formula <FORM:0999235/C2/1> where R is <FORM:0999235/C2/2> or hydrogen or hydroxyl; R1 is alkyl and x is 1, 2 or 3, may be prepared by the reaction of tri-hydroxymethyl aminomethane, an organic carboxylic acid and an aldehyde at temperatures above 150 DEG  C.  In the examples oxazolines are obtained by (a) reacting tall oil fatty acids with tris(hydroxymethyl)-aminomethane and then treating the product with paraformaldehyde; (b) reacting linseed oil fatty acids with tris(hydroxymethyl)-aminomethane and then treating the product with paraformaldehyde and (c) reacting linseed oil fatty acids with isophthalic acid and tris-(hydroxymethyl)-aminomethane and treating the product with paraformaldehyde.ALSO:Modified drying oils are prepared by reacting a drying oil having the formula <FORM:0999235/C3/1> where R is <FORM:0999235/C3/2> hydrogen or hydroxyl; R1 is alkyl and X is 1, 2 or 3, with an ethylenically unsaturated monomer having a terminal CH2=C< group, in the presence of a peroxide catalyst at a temperature from 20 DEG  to 200 DEG  C. Preferably, the amount of ethylenically unsaturated monomer is from 5 to 50% by weight based on the weight of the unmodified drying oil and the amount of peroxide catalyst is from 1 to 10% by weight of the unmodified drying oil and the amount of peroxide catalyst is from 1 to 10% by weight based on the weight of the ethylenically unsaturated monomer.  Lists of ethylenically unsaturated monomers are given including olefines, acrylyl and alkacrylyl compounds, vinyl and vinylidene halides, vinyl carboxylates, N-vinyl imides, N-vinyl lactams, vinyl aryls and vinyl derivatives such as methyl vinyl ketone, vinyl pyridine, vinyl isobutyl ether and vinyl ethyl ether. Peroxide catalysts mentioned are ditertiary bityl peroxide, cumene peroxide and benzoyl peroxide.  In the examples modified drying oils are obtained by reacting drying oil A, B or C with styrene, ethyl acrylate, vinyl acetate, vinyl toluene or acrylonitrile.  Drying oil A is obtained from tall oil fatty acids, tris-(hydroxymethyl) aminomethane and paraformaldehyde; drying oil B is obtained from linseed oil fatty acids, tris-(hydroxymethyl) aminomethane and paraformaldehyde and drying oil C is obtained from linseed oil fatty acids, isophthalic acid, tris-(hydroxymethyl) aminomethane and paraformaldehyde.  The modified drying oils may be incorporated into coating compositions, the other ingredients of which are titanium dioxide, phthalocyanine blue, methylethylketoxime, lead and cobalt naphthanates and mineral spirits.
Patent GB-804078-A (GB)
Title: Gas-blast electric circuit breaker
IPC: H01H33/70
Filed: 1956-05-29
Abstract: 804,078. Gas-blast switches. ALLISCHALMERS MANUFACTURING CO. May 29, 1956 [June 9, 1955], No. 16634/56. Class 38 (5). A gas-blast switch has the movable contact passage provided with sealing means so as to effectively prevent the loss of gas during the current-interrupting operation. As applied to a switch generally similar to that of Specification 718,065, slots 35 in the side walls of the contact passage 29 have sloping surfaces 36 and contain movable rods 37 so that when the contact 8 is being withdrawn the gas pressure forces rods 37 into the position shown in Fig. 2 to seal the gap between the contacts 8 and the insulating structure' 19. During circuit closing the rods are pushed to the other end of the slots 35. In Fig. 4 the packing 42 has a surface 43 engaging the sloping ends 44 of the slots 45 but in Fig. 3 (not shown) rods 37 are used with slots of that configuration.
Patent GB-954201-A (GB)
Title: Process for the preparation of stabilised linear polyureas
IPC: C08L75/02
Filed: 1960-05-11
Abstract: A process for the preparation of stabilized linear polyalkylene ureas, comprises adding before or during the polycondensation of a half-polymer having a molecular weight of between 1,200 and 5,000 and of the general formula XNH-[-R-NH-CO-NX-]-R-NH2, where R is a linear or cyclic radical having at least four carbon atoms, X is hydrogen or an aliphatic radical having from 1 to 4 carbon atoms, and Y represents the degree of polymerization, urea, cyanuric acid or a ureide having two free-NH2 groups in a quantity of between 0.3 and 1.7 mol per mol of half-polymer and the mixture is heated at a temperature of from 10 to 30 degrees C. above the melting point until a polyalkylene urea of relative viscosity of at least 0.40 is obtained. In a modification of the process from 0.5 to 1.5 mols, per mol of the half-polymer of an alkyl monoamine having from 7 to 20 carbon atoms is also present in the reaction mixture.  In the examples, half-polymers derived from: (1) carbonoxysulphide and monomethylene diamine; (2) and (3) carbonoxysulphide and decamethylene diamine; and (4) (5), and (6) hexamethylene diamine, decamethylene diamine and urea are reacted with:-(1) to (3) urea; (4) urea and decyl urea; (5) urea and decylamine; (6) urea and octadecylurea and (7) hexamethylene diurea and decylurea.