baber/WOPTO huggingface dataset:
Patent GB-824997-A (GB)
Title: Improvements in hollow moulded articles
Inventor: PRIOR JOHN
IPC: B29C33/52
Filed: 1957-04-17
Abstract: 824,997. Moulding hollow articles. PRIOR ENGINEERING Ltd., J., and PRIOR, J. April 16, 1958 [April 17, 1957], No. 12485/57. Addition to 817,270. Class 87(2). [Also in Group VII] In a method of moulding a hollow article as in the parent Specification, after removal of the core, a shoe heel is filled with foamed polystyrene or polyurethane a<SP>3</SP>.
Patent GB-860286-A (GB)
Title: Lubricating composition and method of preparing the same
Filed: 1958-04-21
Abstract: A liquid lubricating composition, particularly suitable for use in internal-combustion engines operating on fuels of high sulphur content, comprises a major proportion of lubricating oil, a minor proportion of magnesium carbonate and sufficient magnesium stearate to maintain the magnesium carbonate uniformly suspended in the oil. The lubricating oil may be mineral oil, or a synthetic oil such as a polymerized olefin or an ester (e.g. di-2-ethylhexyl sebacatate or azelate).  The magnesium stearate may be the normal or basic salt. The composition may contain additional ingredients such as pour-point depressants, anti-rust agents, oiliness improvers, extreme pressure agents and viscosity index improvers.  In the examples, mineral lubricating oil compositions are described containing magnesium carbonate and normal or basic magnesium stearate.
Patent GB-680156-A (GB)
Title: Improvemenets relating to folding doors
IPC: E06B3/48
Filed: 1950-05-18
Abstract: 680,156. Folding doors. ROBERTS, J. A., and HENDY QUARRY CO., Ltd. April 16, 1951 [May 18, 1950], No. 12519/50. Class 20(iii) A folding door or like comprising two or more leaves having a light-framed body panelled in sheet metal, composition board or the like has the inner or innermost leaf A reinforced by a strut 7 extending from a point in the plane of the door leaf at the bottom left-hand corner to a point diagonally opposite which lies in a plane outside the plane of the door leaf and is remote from the side towards which the other leaf or leaves swing during their opening movement. The strut is welded or otherwise secured to the door leaf at its lower end and at its upper end is secured to a plate 8 by a nut 9 which may be used to tension the strut. A bar 10 cooperating with a latch 12 may be provided to lock the leaves against relative hingeing-movement.
Patent GB-819017-A (GB)
Title: Digital memory system
IPC: G11C11/20
Filed: 1956-04-24
Abstract: 819,017. Electric digital-data-storage apparatus. GOTO, E. April 24, 1956 [April 28, 1955 (3)], No. 12542/56. Class 106 (1). [Also in Group XXXIX] Digital information is written into a bi-stable magnetic core (or a ferro-electric element) of a matrix store by simultaneously applying two or more frequencies f and f/2 (or f1, f2 and f3, where #1= #2 -#3). The polarity of the residual magnetism in the core is determined by the phase of one frequency f (or f1) which is used in two phases differing by 180 degrees. Parametrically excited resonators (parametrons) are used. Reading is non-destructive and tends to intensify the record. Writing.-Parametrons 9, Fig. 3, excited by a frequency 2f are used in a register 8 to signal a number, say 00101, by suitably phased currents of frequency f on column conductors 61 to 65. The currents shown in lines (b) and (c), Fig. 5, represent the digits 0 and 1. A circuit selector 7 feeds conductor 53 of the row in which the number is to be stored with a current of frequency f/2 shown in line (a). The circuit selector 7 may include parametrons. The unsymmetrical currents, lines (d) and (e), resulting from combinations of the currents of lines (a) and (b) and lines (a) and (c) leave the cores magnetized to store the digits 0 and 1. Reading.-When the stored number is to be read, the circuit selector applies a reading current of frequency f/2 to row conductor 53 and the parametrons in register 8 are excited as before with frequency 2f. The residual magnetism in the cores distorts the currents induced in column conductors 61 to 65 and produce second harmonics f of the reading current f/2 phased as in the original signal from register 8. These components set the parametrons to oscillate as before and the number can be read from terminals 12. Modification, Fig. 9.-Two circuit selectors 22, 23 provide frequencies of f2, f3 in the row and column conductors identifying the magnetic core in which a digit is to be stored. The two currents together produce an alternating field beating at a frequency f1 = f2 -f3 as shown at (c), Fig. 10. The digit to be stored is signalled by a parametron 24 as a frequency f1 in one of two opposite phases as in (a) or (b). The conductor 25 links the parametron 24 to all the cores. The signal current (a) or (b) produces a magnetic field (d) or (e) and leaves a residual magnetic flux which is positive or negative. Successive digits are transmitted by parametron 24 as the cores are marked by frequencies f2, f3 from circuit selectors 22, 23. To read the digit stored in a core, the corresponding row and column conductors are supplied with frequencies f2, f3 as in writing. The component of frequency f1 in the induced voltage. sets the parametron 24 and the phase of the f1 component signals the digit. Storage matrix comprising ferro-electric elements 21, Fig. 12.-Frequencies f2, f3 are provided by circuit selectors 28, 29 like 22, 23, Fig. 9, and the digital signals from parametron 30 are superposed on the currents f2, f3. Specification 778,883 is referred to.
Patent GB-693262-A (GB)
Title: Improvements in or relating to the manufacture of monocyclic polycarboxylic acids
IPC: C07C51/27
Filed: 1951-05-29
Abstract: Benzene polycarboxylic acids are prepared by treating fossilized or more recent combustible deposits or their residues of carbonization, e.g. flame coals rich in gas or low temperature cokes derived from them, with nitric acid at an elevated temperature, distilling off the residual nitric acid, digesting with water, separating the insoluble matter and evaporating the remaining aqueous solution.  The aqueous solution may be decolourized prior to evaporation by treatment with absoring agents such as active carbon or by treating with bleaching agents, preferably those such as chlorine or hydrogen peroxide which leave no non-volatile residue.  Aromatic nitro compounds such as picric acid may be removed from the aqueous solution by extraction with an organic solvent in which the polycarboxylic acids are not soluble, e.g. benzene or chloroform.  The residue after evaporation may be further digested with organic solvents such as low boiling ketones which leave impurities, especially mineral constituents, undissolved.  The selective action of these solvents may be increased by the addition of low boiling chlorinated hydrocarbons such as chloroform or carbon tetrachloride.  The polycarboxylic acids may be further purified by esterifying with low-boiling alcohols and distilling.  When the starting material is a hard coal containing about 19 per cent or more of volatile matter it is suitably subjected prior to nitric acid oxidation to a preliminary oxidizing treatment with air or other oxidizing gases at about 200-300 DEG  C.  Examples describe the oxidation of coals and separation of the products according to the invention to give mixtures of acids including trimellitic, pyromellitic, mellophanic, benzene pentacarboxylic, hemimellitic, phthalic and succinic acids which are characterized by their methyl esters.
Patent GB-760426-A (GB)
Title: Machine for closing the ends of flexible tubes of thermoplastic material
IPC: B29C65/10
Filed: 1954-04-30
Abstract: 760,426. Seaming non-metallic sheet material. UNI-TUBO SOC. ANON. April 30,1954 [May 1, 1953], No. 12610/54. Class 42 (1). A machine for closing the ends of flexible tubes of thermoplastic material comprises jaws for gripping and flattening a tube adjacent the end thereof, means for heating the layers of material projecting beyond the jaws to weld them together and further means for compressing and cooling the weld. As shown, a tube 17 is flattened between a fixed jaw 4 and a movable jaw 5 which is carried by bolts 7 slidable in the fixed jaw and connected to a cross-member 8 which is coupled by a spring 10 and bolt 11 to a casing 9 slidable on a spigot 14 and acted on by a spring 64. The casing is grooved for the reception of the arms of an operating fork 15 carried by a transverse spindle 16. An adjustable, perforated burner pipe 19 arranged to direct flame jets 21 on to the projecting portion of the flattened end of the tube, is supplied with gas through pipes 22, 23 controlled by a spring- loaded valve 27 actuated by a lever 31, a pilot jet 33 being supplied through a by-pass 34. Further jaws 36, 37, Fig. 4, formed with recesses 49 for the reception of the bead formed on the end of the tube, are pivoted on a spindle 40 carried by arms 39 secured to the spindle 16 and are normally held open by a spring 46. The apindte is movable axially by a lever 53 and carries a peg 51 which engages tapered recesses in the jaws to effect closing movement thereof. When the arms 39 are swung downwardly by the operator, the fork 15 closes the jaws 4, 5 and the lever 31 is then operated to open the valve 27 by a cam 57 on a spring-loaded catch 55 pivoted to an arm 56 on the spindle 16. During further downward movement to bring the jaws 36, 37 into their operative position, the cam rides over the follower 58 to allow the valve to close and cut off the supply to the jets 21. The lever 53 is then operated to close the jaws. On the subsequent retraction of the arms, the spring-loading of the catch allows the cam to ride over the follower without opening the valve. The jaws are formed with passages 61 for the circulation of cooling water. The jets 21 may be replaced by jets of hot gas or air.
Patent GB-1535041-A (GB)
Title: Night latch
IPC: E05B9/02
Filed: 1976-03-11
Abstract: 1535041 Lock casings J LEGGE & CO Ltd 11 March 1976 [26 March 1975] 12618/75 Heading E2A A casing housing a night-latch mechanism has its side and end walls and base together with guides for the lath of a sliding bolt and necessary apertures formed by pressing from an initially flat metal blank. A back plate, intended to fix to a door, is attached to said base and is also formed by pressing a flat metal blank as is also a cover plate to cover the open front which is, in addition, provided with means for operating the sliding bolt. The casing is covered with a metal cover and is formed of a metal pressing or a plastics moulding.
Patent GB-861372-A (GB)
Title: Process for the production of bis-(p-hydroxyaryl)-aryl acetonitriles
IPC: C07C255/53
Filed: 1959-04-14
Abstract: Bis - (p - hydroxyaryl) - aryl - acetonitriles are prepared by reacting about 1 mol. of an aroyl cyanide with about 2 mols. of a phenolic compound in an acidic medium.  The reaction is preferably carried out at 0-40 DEG  C. in a sulphuric acid medium in the presence of a minor amount of an ionizable organic sulphur compound, e.g. thioglycollic acid or dodecyl mercaptan.  The aroyl cyanide may be benzoyl or a chloro, methyl, methoxy or nitro-substituted benzoyl cyanide or a cyanide derived from a diphenyl, naphthalene, anthracene or phenanthrene carboxylic acid. The phenolic compound may be phenol, a halo, nitro, alkyl or aryl substituted phenol, a bis-phenol or a naphthol.  The examples describe the preparation of (1) bis-(p-hydroxyphenyl)-phenyl-; (2) bis - (p - hydroxyphenyl) - p - chlorophenyl-; (3) bis - (p - hydroxyphenyl) - p - methoxyphenyl-; (4) bis-(4-hydroxy-3-methylphenyl)-phenyl; (5) bis-(4-hydroxy-2-methylphenyl)-phenyl-; and (6) bis-(b -hydroxy-naphthyl)-phenyl-acetonitrile.
Patent GB-118672-A (GB)
Title: Improvements relating to Thread Cutting Mechanism for Sewing Machines.
Inventor: FAIRWEATHER WALLACE
IPC: D05B65/00
Filed: 1917-09-05
Abstract: 118,672. Fairweather, W., (Singer Manufacturing Co.). Sept. 5, 1917. Thread-cutters; sewing-machines.- Relates to sewing-machines having devices for severing the threads, and is described as applied to a button-sewing machine having a button-holder of the kind described in Specification 114,389. Separate pull-off and severing devices are provided for the upper and lower threads, and these are actuated at the end of a stitching operation by the treadle-actuated mechanism by which the button-holder is lifted. The pull-off finger 86, Fig. 10, for acting on the upper thread is adjustably secured to a plate 80 pivoted on a bracket 82 secured to the head of the machine. The plate 80 is swung about its pivot by a pm on the bar ot the buttonholder engaging a slot 88, when the button-holder is lifted. The upper-thread severing device comprises a plate 66, Fig. 11, with a knife-edge 67 sliding in a guide 65, Fig. 7, in the presser-foot and retained by a plate 68 having a cutting-edge 71. The plate 66 has a loose pivotal connexion with an arm 74 of a sleeve 75 mounted on a pin 76 screwed into an aperture 77 on the presserbar. A lug 78 in the sleeva 75 is engaged by a pin 79 on the plate 80 to sever the thread at the end of the pull-off movement of the arm 86. The plate 66 is retracted by a spring 91. The presserbar 51 slides in a guide fixed to the machine frame and is normally pressed on the work by a spring and lifted by a plate spring in the bar of the work-holder engaging the underside of the pin 92. The lower-thread pull-off and severing device consists of a bar 109, Fig. 6, having a pulloff edge 110, and rearwardly thereof a knife-edge 112, and coacting with a fixed plate under the work-support. The bar 109 is actuated by a link and bell-crank connexion with the treadle gear for lifting the button-holder.
Patent GB-939105-A (GB)
Title: Improvements in or relating to dynamos for vehicles
IPC: H02J7/16
Filed: 1960-04-11
Abstract: 939,105. Semi-conductor devices. ROBERT BOSCH G.m.b.H. April 11, 1960 [April 11, 1959], No. 12747/60. Class 37. [Also in Group XXXV] A semi-conductor device, Fig. 2, for use in a vehicle lighting system (see Group XXXV) comprises a cup-shaped member 40, manufactured from copper plate by deep-drawing, to a base 41 of which is soldered a semi-conductor disc 43 by a tin-disc 42. The semi-conductor disc is manufactured from high purity germanium melted with an addition of antimony in a crucible and a single cylindrical crystal is drawn from the melt having a specific resistance of 0.1 ohm per cm.<SP>3</SP> and the disc is obtained by saw cuts transversely to the longitudinal axis of the crystal. A copper wire 46 is soldered to the disc by a pill of indium and passes through an insulating disc 45 and a sealing composition 47. The semi-conductor is soldered together in one operation by heating at 520‹ to 530‹ C. under a gas or in vacuo. The graph, Fig. 3, shows the relationship between the voltage U AK , effective cup-shaped member 40 and wire 46, and the current J flowing through the semiconductor, the sharp bend in the characteristic being obtained by the considerable portion of copper in the solder pill. Specification 839,591 is referred to.
Patent GB-384312-A (GB)
Title: Process for the production of coloured photographs
IPC: G03C7/46
Filed: 1931-04-30
Abstract: 384,312. Colour photography. LEJEUNE, F., 19, Auerspergstrasse, Vienna. April 30, 1931, No. 12805. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 4, 1931.] [Class 98 (ii).] Relates to the production of photographs in natural colours by forming component relief images, treating such images with appropriate salt solutions, and bringing them successively into contact with a colloid layer and, after each imbibition, treating with a precipitant to produce an insoluble coloured precipitate; and consists in forming the yellow, blue, and red component images respectively of lead chromate, Turnbull's or Prussian blue, and nickel dimethylglyoxime. To produce sharp images and avoid spreading, the precipitants may be incorporated in the colloid layer in waterinsoluble form, e.g. the colloid layer contains a white precipitate of lead carbonate or hydrocarbonate, dimethylglyoxime is incorporated in the colloid layer during coating, and the coating is treated with a solution of ferric chloride.
Patent GB-632595-A (GB)
Title: Process for the preparation of azo dyestuffs on the fibre
IPC: C09B43/128
Filed: 1947-05-13
Abstract: An azo dyestuff of the formula <FORM:0632595/IV (c)/1> or <FORM:0632595/IV (c)/2> , where R is a hydrocarbon radical, A, B and X are benzene, indazole, benzimidazole or benztriazole nuclei free from solubilizing groups, one at least being heterocyclic, or X may be a different aromatic nucleus, e.g. anthraquinone, is prepared on the fibre by diazotizing a compound of the formula X-NH2 and coupling it with a compound of the formula <FORM:0632595/IV (c)/3> or <FORM:0632595/IV (c)/4> The heterocyclic nuclei may be distributed as follows in the dyestuff molecule: (1) none in the coupling component and one in the diazo compound; (2) one or two in the coupling component and none in the diazo compound; (3) one or two in the coupling component and one in the diazo compound.  The acylacetylamino group can be ortho or para to the azo linkage of the coupling component.  When there is only one heterocyclic nucleus in the coupling component, the acylacetylamino group can be on this nucleus or on the one attached to it by the azo linkage.  The dyestuffs may be after-treated to yield metal derivatives (e.g. copper), especially if there is a heterocyclic nuclear nitrogen ortho to the azo linkage and an alkoxy group ortho to the same linkage. The dyestuffs may be fixed on the fibre by dyeing, foularding or printing, directly or via the Schiff's base.  The coupling components may be obtained from amino-azo compounds of the formula NH2-A-N=N-B or NH2-A-N=N-B-NH2 by acylacetylation, e.g. with an acylacetic ester, the amines compounds being prepared by reduction of nitro compounds or hydrolysis of acylamino compounds.  Examples are given of the preparation of typical dyestuffs according to the invention, and a list is included of suitable diazo and coupling components.  The Specification as open to inspection under Sect. 91 comprises also the preparation of the dyestuffs in substance, and the use of a tetrazotised diamine is mentioned.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1340429-A (GB)
Title: Fluid flow control valves
IPC: F16K27/06
Filed: 1971-05-04
Abstract: 1340429 Valves UNION PUMP CO 4 May 1971 [6 May 1970] 12966/71 Heading F2V [Also in Division B5] The body of a rotary conical plug valve has a corrosion-resistant liner formed in situ in the body. The body is lined by inserting a multipart mandrel 122, 124, 126 and a flexible forming element 110 into the body and bolting end and top fixtures 70, 90 to the flanges 22, 24, (34). The ends of the element 110 are secured by elastic bands 112 to the respective fixtures. Vacuum is applied via cocks 86 to the space between the body and the element 110 to facilitate the insertion of the mandrel. After the element 110 has been all owed to collapse on to the mandrel, part 94 of the top fixture is removed to allow the pouring of granular P.T.F.E. into the space between the body and element 110, the body being simultaneously vibrated. Bolts 98 draw the part 94 down to partially compress the liner material which is further compressed by applying vacuum to cocks 86 to expand the element 110. Mandrel 122, 124, 126 may then be withdrawn and the assembly is immersed into an isostatic moulding or compression tank. The element 110 is thereafter removed and the liner is heated to 700 C. to cure and sinter the P.T.F.E. The liner 40 is sized by the insertion of a heated dummy plug into chamber 14 which causes the liner material to expand along flow passages 20, 18, after which the projecting ends of the liner are flared to form flanges 42. On cooling of the liner to room temperature a tension is formed in the liner which helps, in use of the valve, to compensate for thermal expansion of the liner. The walls of the passages 20, 18 are also formed with diametrically opposed recesses 60 into which portions of the liner may project on greater thermal expansion. The liner 40 at the bottom of the chamber 14 is located by a body shoulder 45 and forms an annular bearing surface 50 for the plug 26. A cylindrical portion of the plug which projects out of chamber 40 is engaged by spaced portions 58, 59 of the liner which are biased on to the liner by the engagement of conical surfaces 55, 47 on a dishshaped retainer 54 and the liner.
Patent GB-693758-A (GB)
Title: Improvements in wheeled carriers, particularly for golf clubs
IPC: B62B1/04
Filed: 1950-05-24
Abstract: 693,758. Wheeled carriers. PETER PAN MANUFACTURING CO., Ltd., and WHITTINGHAM, J. May 24, 1951 [May 24, 1950], No. 12968/50. Class 108 (i). A carrier for golf bags &c. has a longitudinal chassis tube 1 to which is pivoted a cranked handle 13 connected by toggle links 11 and 12 to a sleeve 6 sliding on the tube. The sleeve is connected by hinged parallel links 5, 5a to wheel supports 4, and pivoted links 7 also connected to the supports are hinged at their other ends to the tube 1. Arms 10 pivoted to the supports mount wheels 3, and links 16 are pivoted as shown to the arms 10 and a cross member 15 on the tube 1. The carrier may be collapsed from the Fig. 1 operative position by moving the handle 13 upwardly over the tube 1, as in Fig. 2, to actuate the links 11, 12 to move the sleeve 6 and draw the wheels inwardly. The links 16 are adapted to move the wheels upwardly simultaneously with the inward movement, and a handle locking pin 14 is provided.
Patent GB-1494070-A (GB)
Title: Method for making a scroll-type housing for a centrifugal blower
IPC: F04D29/42
Filed: 1976-03-31
Abstract: 1494070 Making centrifugal blower housings TORIN CORP 31 March 1976 [17 June 1975] 12980/76 Heading B3A A method for making a scroll type housing for a centrifugal blower comprises providing a discharge plate 10, a flat scroll member 12 and two similar side plates 14, 16 and assembling them by bending scroll member 12 into generally arcuate form and attaching flanges (30), Fig. 4 (not shown), on the ends of member 12 to attachment means 29 on opposite edges of the opening in the discharge plate so that member 12 is retained by its own resilience, inserting a side plate 14 through the opening in the assembled scroll plate, attaching the discharge end of plate 14 to attachment means 24, 26 on discharge plate 10 and attaching attachment means 44 on the scroll edge of plate 14 to attachment means 36 on scroll member 12 to retain plate 14 in position and assembling plate 16 the same way. Attachment means 29 are upset portions of plate 10, attachment means 24, 26 are flanges and lugs respectively, and attachment means 34, 36 are lugs and openings. The parts may not be of metal.