baber/WOPTO huggingface dataset:
Patent GB-593726-A (GB)
Title: Improvements in or relating to gloves for personal wear
IPC: A41D19/02
Filed: 1945-06-18
Abstract: 593,726. Gloves. GOULD, J. H. June 18, 1945, No. 15449. [Class 141] A glove in which there are no side seams is made from two hand blanks and a thumbpiece, the two seams being located at the back of the hand. As shown in Fig. 1a, one blank comprises, in the following order, the back 2 of the first finger, the fronts 3, 4, 5, 6 of all the fingers and the back 7 of the little finger. The second blank, Fig. 1b, comprises the backs 8, 9 of the second and third fingers. The first blank is, folded along the lines 11, 18 and the second blank secured to it so that the seams extend from the inner ends of the backs of the first and little fingers to the end of the back of the glove. An opening 10, preferably of the type described in Specification 504,981, is, provided for the thumb, and gussets are provided between the fingers. The Provisional Specification also describes an arrangement in which the glove, apart from the thumbpiece, is formed from a single piece of material, the seam extending from the inner end of the first finger to the end of the back of the glove.
Patent GB-951061-A (GB)
Title: Substituted í¸-pyrrolines and í¸-tetrahydropyridines and process for their manufacture
Filed: 1960-05-02
Abstract: The invention comprises substituted pyrrolines and tetrahydropyridines of the general formula: <FORM:0951061/C2/1> in which Z represents an alkylene radical and which contains a chain of 3 or 4 carbon atoms and which may be substituted by an alkyl group containing at most 4 carbon atoms, and R represents a substituted phenyl or naphthyl radical of the formula: <FORM:0951061/C2/2> <FORM:0951061/C2/3> in which R1 represents a hydroxyl group or an alkoxy, alkyl-mercapto or halogen-alkoxy group containing at most 4 carbon atoms, R2 and R3 each represents a hydrogen atom, a hydroxyl group or an alkyl or alkoxy group containing at most 4 carbon atoms, a carbalkoxy group containing at most 3 carbon atoms, or a halogen atom, R4 represents a hydrogen atom, a hydroxyl group or an alkyl or alkoxy group containing at most 4 carbon atoms, or R1 and R4 together represent an ethylene-dioxy group, or, when R represents a substituted phenyl radical and R3 represents a hydrogen atom, R1 may also represent a hydrogen atom and R4 represent a radical -X-R5, in which X represents an oxygen or sulphur atom, and R5 represents a group of the formula: <FORM:0951061/C2/4> in which Z, R2 and X have the meanings given above, and Y is a whole number from 2 to 6, and salts thereof. They are prepared by condensing a compound of type RH with a primary g  or d -aminocarboxylic acid or a salt or reactive functional derivative thereof, e.g. an ester, in polyphosphoric acid medium. The products may be used as optical brighteners and ultraviolet absorbers for textiles (Division D1) or as vasopressor drugs.ALSO:Optical brighteners and ultraviolet absorbers for textile fibres, specifically polyacrylonitrile comprise substituted pyrrolines and tetrahydropyridines of the general formula: <FORM:0951061/D1-D2/1> in which Z represents an alkylene radical and which contains a chain of 3 or 4 carbon atoms and which may be substituted by an alkyl group containing at most 4 carbon atoms, and R represents a substituted phenyl or naphthyl radical of the formula: <FORM:0951061/D1-D2/2> in which R1 represents a hydroxyl group or an alkoxy, alkyl-mercapto or halogen-alkoxy group containing at most 4 carbon atoms, R2 and R3 each represents a hydrogen atom, a hydroxyl group or an alkyl or alkoxy group containing at most 4 carbon atoms, a carbalkoxy group containing at most 3 carbon atoms, or a halogen atom, R4 represents a hydrogen atom, a hydroxyl group or an alkyl or alkoxy group containing at most 4 carbon atoms, or R1 and R4 together represent an ethylenedioxy group, or, when R represents a substituted phenyl radical and R3 represents a hydrogen atom, R1 may also represent a hydrogen atom and R4 represent a radical -X-R5, in which X represents an oxygen or sulphur atom, and R5 represents a group of the formula:  <FORM:0951061/D1-D2/3> in which Z, R2 and X have the meanings given above, and Y is a whole number from 2 to 6 and salts thereof.  They may be applied from hot aqueous baths.
Patent GB-687055-A (GB)
Title: Polyisocyanate compositions and method of preparing the same
IPC: C08G12/08
Filed: 1951-06-29
Abstract: The invention comprises a mixture of isocyanates of the formula <FORM:0687055/IV (b)/1> where R and R1 are arylene radicals, Y is hydrogen, alkyl or aryl and X is hydrogen or a radical of the formula <FORM:0687055/IV (b)/2> not more than 40 per cent by weight of the mixture is di-isocyanate.  The compounds are made by condensing primary monoarylamines with aldehydes or ketones in a ratio from 4 : 2.5 to 4 : 3.5, rearranging the resultant secondary diamine to a bis-(aminoaryl)-alkane with mineral acid, and repeating the condensation and rearrangement until sufficient aminoaryl groups are present; final reaction with phosgene converts the amino groups into isocyanate groups.  Under normal conditions the condensations and rearrangements occur simultaneously if mineral acid is present from the start.  Di-isocyanates may be removed from the product by distillation.  Formul  are given of the various products obtainable from aniline and formaldehyde and the experimental details are shown in an example.  Other specified reactants are the chloroanilines, toluidines, phenetidines, anisidines, xylidines, xenylamines, naphthylamines, acetaldehyde, propionaldehyde, butyraldehyde, nonylaldehyde, benzaldehyde, acetone, butanone, pentanones, hexanones, acetophenone, propiophenone and benzophenone.  Mixtures may be used.  The products are useful for cross-linking polymeric compounds.
Patent GB-1416974-A (GB)
Title: Variable speed drive transmission
IPC: F16H13/10
Filed: 1973-03-30
Abstract: 1416974 Variable speed friction gear ROLLER GEAR AG 30 March 1973 [18 April 1972] 15520/73 Heading F2D Contact pressure between friction drive transmitting elements is varied in accordance with torque and oil viscosity by fluid pressure generating means comprising a pump discharging into a chamber from which oil is continuously bled through a nozzle. The described embodiment has, e.g. three, balls 100 uniformly spaced by fixed rollers 110 around an output shaft 60, coaxial with an input shaft 30, and coacting with a race 140 fixed to the output shaft, a race 150 axially slidable on and rotatable relatively to the output shaft, and races 120, 130 driven by the input shaft. The race 120 is carried by a flange 72A of a bush 72 which is keyed to the input shaft to be slidable thereon, and the race 130 bears against an abutment 131 in a carrier 71 driven by the flange 72A through a pin 73. A spring 75 acts between the bush 72 and carrier 71 in a sense to diminish the volume of a chamber C, and ratio change is effected by variation by hydraulic pressure in this chamber by a valve 90 actuated by a ratio-selector cam 81 and having a housing 92 movable with the bush 72. A pump 40 driven by the input shaft feeds the valve 90 and, through passageways in the input and output shafts, the means 200 for regulating the contact pressure between the balls and races. This means consists of a barrel 210 rotatable on the output shaft and containing eight plungers 220 with rollers 222 engaging an undulating edge cam 250 fixed to the output shaft. Oil delivered by the plungers acts in a chamber P, with a restricted bleed nozzle 230, to apply pressure to the race 150 through a piston 202. Thus, contact pressure between the drive transmitting elements is increased in response to both increased oil viscosity and increased torque at the output shaft which gives rise to increased relative rotation between the barrel 210 and the cam 250. A relief valve (not shown) limits maximum pressure in the chamber P.
Patent GB-1154425-A (GB)
Title: Combination Locks with Concealed Control Means for Permitting Changing the Combination
IPC: E05B37/02
Filed: 1967-04-05
Abstract: 1,154,425. Combination padlocks. COATS & CLARK Inc. 5 April, 1967 [13 Dec., 1966], No. 15523/67. Heading E2A. In a combination lock having a shaft 16 carrying numbered wheels 24 which when properly set allow the passage of projections 31 on the shaft when the latter is moved axially, such movement is normally limited by the end 37 of a slide 36 but by inserting a key 51, a control member 40, 45 may be moved to the left (as seen in Fig. 1) to allow downward movement of the slide 36 and further outward movement of the shaft 16 so that the wheels may be rotated and set to a new combination. The wheels have internal grooves 30 for cooperation with the projections 31, and frictionally mounted within each wheel is a split ring 29, the break in which provides the passage for the corresponding projection 31 when the wheel is properly set. When the shaft 16 is moved to its extreme leftward position, the projections 31 remain engaged with the split rings 29 but are disengaged from the grooves 30 so that the wheels 24 can be moved, for re-setting purposes, relatively to the split rings 29. Springs 33 frictionally engage the wheels 24. As shown, the lock is incorporated in a padlock, the shaft 16 being part of the shackle 17. The components which may be of plastics are mounted in a two-part casing, one part of which has rivet-like projections 11 by which it is secured to the other part.
Patent GB-357204-A (GB)
Title: Improvements in or relating to panels or backings for oil paintings
IPC: B44D3/18
Filed: 1930-05-20
Abstract: 357,204. Pictures. WADE, H., 111, Hatton Garden, London.-(Bakelite Corporation ; 247, Park Avenue, New York, U.S.A.) May 20, 1930, No. 15546. [Class 11.] Oil paintings are made on panels or backings of fibrous sheet material, such as paper or fabric, impregnated with phenol-formaldehyde or other artificial resins applied in the liquid state and subsequently converted into the insoluble state by heat. Layers of impregnated material may be superimposed and submitted to heat and pressure. A frame of similar or different composition may be formed on the panel in the moulding operation. The working surface may be roughened by grinding, sand-papering, &c., or a rough surface may be formed in the moulding operation, or an outer layer of rougher texture may be used. Specifications 28155/10, 157,415, 220,043, 227,216, 300,836, and 319,901. [all in Class 96, Paper &c.], are referred to.
Patent GB-473781-A (GB)
Title: Improvements in the manufacture of lead alloys
IPC: C22C11/08
Filed: 1936-06-04
Abstract: A casting, for example a cast battery grid, is made from a lead alloy containing 2-4 per cent of antimony and 0,01-0,25 per cent of tellurium.  The casting may be tempered or aged or reheated to 240-248 DEG  C. and aged.  Specifications 309,629, [Class 82 (i)], and 411,524 are referred to.  The Provisional Specification describes an alloy having up to 5 per cent of antimony and refers also to Specification 392,585.
Patent GB-1023562-A (GB)
Title: Polyesters with inhibited tendency to colour formation
Inventor: TAYLOR GEORGE WRIGHT
IPC: D01F6/62
Filed: 1961-05-01
Abstract: Heated fibre-forming polyesters (e.g. polyethylene terephthalate) are inhibited from degrading by maintaining them in contact with at least 0.2% by weight of particles of Ni, Cu, Al, Mn or iron or alloys thereof.  Preferably relative motion is maintained between the particles and the polyester.
Patent GB-593924-A (GB)
Title: Process of forming granulated aminoplast resin compositions and products so produced
IPC: B29B9/04
Filed: 1945-06-20
Abstract: <PICT:0593924/IV/1> A granulated amine-aldehyde resin moulding composition is prepared by a continuous process comprising preheating powdered amine-aldehyde resin moulding composition, passing the preheated powder through a set of differential rolls at a temperature less than the preheating temperature to form a loosely compacted sheet and granulating the sheet material.  Preferably, the amine-aldehyde resin powder is treated continuously by passing it through two sets of differential pressure rolls, the temperature of the first set being below that required to form a self-sustaining sheet.  The sheet is then formed as the material passes through the second set of hotter rolls.  The material is then stripped off, granulated and screened, the rejected "fines" and "lumps" being reprocessed.  The amine-aldehyde resin may be aminotriazine - aldehyde such as melamine - formaldehyde, dicyandiamide - aldehyde, melamine - modified dicyandiamide - formaldehyde, urea-aldehyde, thiourea-urea-aldehyde, melamine - urea formaldehyde, urea - aldehyde - alcohol, melamine - aldehyde - alcohol and mixtures of the separate resins or condensates in the presence of ammonia or ammonium hydroxide. Latent curing catalysts, mould lubricants such as zinc stearate, colouring matter and fillers such as wood flour, alpha cellulose, paper, cotton, canvas, asbestos, mica flakes, pearl shell chips, synthetic or natural filaments, glass fibres and fabrics may be added.  In Fig. 1, powder from the pebble mill is charged through the hopper 12 to the nip of differential hot rolls 14, which may be corrugated, or the preheating may be effected on an endless belt in a heating chamber, in an inclined kiln or by induction heating.  The preheated material is then passed through heated differential pressure sheeting rolls 18, preferably one roller only being heated and the sheet material stripped from the hot roll, granulated in a cutter equipped with a screen 28 through which the granules pass to the triple-decked sifter, the fines being recirculated and the lumps regranulated.  A modification of the rolls comprises a three-roll calendar having two nips.  In the examples: (1) a mixture of urea-formaldehyde condensate and paper pulp as filler, prepared as disclosed in U.S.A.  Specification 2,338,464, was dried, ground in a ball-mill, preheated on differential rolls in which the fast roll was at 240-250 DEG  F. and the slower roll at 220 DEG  F., and sheeted on a second set of differential rolls closer together and at 140 DEG  F. when the material was granulated and screened; (2) a melamine-formaldehyde resin with wood flour filler was dried, ball-milled, preheated in a chamber at 230 DEG  F. and sheeted on differential hot rolls at 150 DEG  F., when the material was granulated and screened.
Patent GB-1053145-A (GB)
IPC: C08G69/20
Filed: 1964-04-16
Abstract: 1,053,145. Polymerizing lactams. BADISCHE ANILIN- & SODA-FABRIK A.G. April 16, 1964 [May 4, 1963]. No. 15744/64. Heading C3R. In a process for the anionic polymerization of lactams, adipoyl dicapryllactam is used as an activator. Specified lactams are caprolactam, capryllactam, oenantholactam, capric lactam, laurolactam, #-ethyl-#-caprolactam, #-ethyl-#- oenantholactam, methylene - bis - caprolactam and mixtures thereof. Specified catalysts are sodium, potassium, calcium, the amides, alcoholates and hydroxides thereof and sodium lactamate. Fillers e.g. glass fibres asbestos, ceramics, graphite, gypsum, chalk, molybdenum sulphide, wood flour, natural fibres or cellulose acetate fibres may be present in the reaction mixtures.
Patent GB-873862-A (GB)
Title: Improvements in the dyeing properties of polyethylene terephthalate
Inventor: HORN CHRISTIAN FRIEDRICH
IPC: C08G63/82
Filed: 1959-05-08
Abstract: Linear polyethylene terephthalate containing in its molecule 1-20 mol per cent of structural units -OOCRSO2R1-SO2RCOO- where R and R1 are divalent hydrocarbon radicals containing 2-10 carbon atoms are prepared by including in the ester-interchange reaction between ethylene glycol and a lower alkyl terephthalate the appropriate amount of R1(SO2RCOOR11)2 wher R11 is the residue of an alcohol boiling below 200 DEG C.  Suitable disulphones are dimethyl 6, 61-(tetramethylene disulphonyl) dicaproate; dimethyl 4, 41-(tetramethylene disulphonyl) dibutyrate; dimethyl 6, 61-(p-xylylene-disulphonyl) dicaproate; dimethyl 4, 41-(tetramethylene disulphonyl) dibenzoate; dimethyl 6, 61- (ethylene disulphonyl) dicaproate; dimethyl, 4, 41-(trimethylenedisulphonyl) ditoluate; dimethyl 6, 61-(pentamethylene disulphonyl) dicaproate; dimethyl 6, 61-(hexamethylene disulphonyl) dicaproate; dimethyl 6, 61-(decamethylene disulphonyl) dicaproate; dimethyl 4, 41-(3-methyl pentamethylene disulphonyl) ditoluate; dimethyl 4, 41-(decamethylene disulphonyl) ditoluate; dimethyl 6, 61-(3-methylpentamethylene disulphonyl) dicaproate; dimethyl 4, 41-(p-xylylene disulphonyl) dibutyrate; dimethyl 5, 51-(p-xylylene disulphonyl) divalerate; dimethyl 6, 61-(trimethylene disulphonyl) dicaproate.  Usual ester interchange catalysts e.g. sodium, calcium, dibutyl tin oxide, tributyl tin hydroxide, dilauryl tin oxide, dibutyl tin chloride, or lead borate, salicylate, benzoate, carbonate or acetate may be used in the first stage of reaction.  Polycondensation is continued until filaments or films formed from the melt can be cold-drawn.  The products have improved dyeing properties.  U.S.A. Specification 2,465,319 is referred to.ALSO:Disulphones of formula R1(SO2RCOOR11)2 where R and R1 are divalent hydrocarbon radicals with 2-10 carbon atoms and R11 is H or a residue of an alcohol boiling below 200 DEG C. may be prepared by reacting R1Cl2 with HSRCOOH, oxidising the dithio acid to the disulphone acid and esterifying the latter, or by reacting R1(SH)2 with a butyro, valero or caprolactone or the corresponding o -halogen acids to form a dithiodicarboxylic acid which is then oxidised and esterified.  In an example, 1,4-dichlorobutane is reacted with 6-mercaptocaproic acid or its methyl ester to form 6,61-(tetramethylenedithio)-dicaproic acid or its dimethyl ester.  Oxidation, e.g. with peracetic acid yields the corresponding disulphone diester or diacid, which latter may be esterified to form the methyl ester.
Patent GB-1466482-A (GB)
Title: Circuit arrangement of an electronic relay with changeover  function
IPC: H04L25/26
Filed: 1975-04-17
Abstract: 1466482 Transistor switching circuits; telegraphy INTERNATIONAL STANDARD ELECTRIC CORP 17 April 1975 [27 April 1974] 15871/75 Headings H3T and H4P A relay circuit comprises transistors T1, T2 arranged such that they are alternately driven into conduction by a control voltage via an optocoupler OK whose light receiving element has electrodes connected in series with a zener diode Z between the bases of the two transistors such that when the coupler is disabled the zener diode conducts to turn on transistor T1 and when the coupler is enabled the zener diode is rendered non-conductive and transistor T2 turns on. The input signal applied to the relay at SE1, SE2 is a telegraphy signal, and during the interval between telegraphy pulses transistor T2 is held on due to the charge on capacitor C1. Should the initial charge on capacitor C1 be insufficient to hold T2 on, a monostable circuit formed by the components T4, T6, T7, T8 and time constant circuit R8, R9, C2 is also provided. During a transmit condition of the circuit switch SK is closed to turn on transistor T3, thus reducing the sensitivity of the light sensitive element in the optocoupler such that it does not respond to input signals. At the end of transmission switch SK opens and capacitor C discharges, returning the coupler OK to its full sensitivity after a delay period longer than the dying out time of the transmission line carrying the telegraphy signals.
Patent GB-439178-A (GB)
Title: Improvements in or relating to telegraphones and like magnetic recording devices
IPC: G10K15/10
Filed: 1934-05-28
Abstract: 439,178. Transmitting music &c. MAR CONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and RUST, N. M., 109, London Road, Chelmsford. May 28, 1934, No. 15875. [Class 40 (iv)] [See also Group XXXVIII] Apparatus for producing artificial echoeffects in a broadcasting &c. studio comprises a recorder RC by which signals from a microphone M are recorded on a magnetic tape T and a plurality of spaced pick-up devices RP1 .. RP3 having different frequency-response characteristics and individual adjustable amplifiers A1 .. A3, whereby currents representing echoes of any desired characteristic may be combined with the original currents in the input circuit of the transmitter &c. AO. Alternatively, a plurality of spaced recorders and a single pick-up device may be used. The different frequency-response characteristics may be obtained by the use of filters or by varying the " stagger " of the polepieces of the pick-up devices. With windings on both polepieces connected in series, a maximum response is obtained by making the " stagger " an odd multiple of a half-wave-length. For example, to produce a maximum at 2000 cycles, and a cut-off at 3000, the " stagger " is made equal to a half of the wave-length corresponding to 2000 cycles and a further maximum at 6000 is prevented by giving the polepieces big losses at this frequency or by a filter. Maximum responses at low frequencies can also be obtained by connecting the windings in opposition or by increasing the width of the polepieces. Specification 439,179, [Group XXXVIII], is referred to.
Patent GB-645261-A (GB)
Title: An improved tree trimming appliance
IPC: A01G3/08
Filed: 1948-06-16
Abstract: 645,261. Sawing. WENDORFF, B. June 16, 1948, No. 15881. [Class 145(ii)]. [Also in - Group I] In a tree trimming appliance of the kind in which a circular saw 5 is carried at one end of manipulating. handle 11, the saw being housed in a guard casing 10 having projecting fingers 19 for properly locating the saw with respect to the material being trimmed, the saw guard is adjustably rotatable about the axis of the saw and is provided with manually controlled locking means 25 for releasably locking the guard in any one of a selected number of positions relative to the manipulating handle. As shown the saw is actuated through a flexible drive 13 enclosed in the manipulating handle 11, the sleeve 8 in which is mounted the saw arbor 6 and which is attached to the tube 11 being mounted inside a boss 9 carried by the flanged guard 10 rotatably attached to the sleeve 8 by a locking ring 12. A locking pin or plunger 25 secured to the end of a finger grip 29 passes through a hole in the boss 9 for engagement with one of a series of circumferentially spaced holes 26 in the sleeve 8 and is retained therein by means of a spring 27. An auxiliary handle 24 may be provided on the guard, whilst the fingers 19 have detachable serrated inserts 30 adapted to contact the tree trunk and serve as spacing members. The flexible drive shaft may be replaced by a rigid shaft in a straight tubular manipulating handle and the saw be driven therefrom by bevel &c. gearing.
Patent GB-473119-A (GB)
Title: Improvements in and relating to price and like tickets
IPC: G09F3/12
Filed: 1937-06-08
Abstract: 473,119. Price tickets. STAGG, S. R. June 8, 1937, No. 15913. [Class 73] A spiked price ticket has the spike 5, Fig. 2, embedded in a block of material 6 formed in one with the ticket 4 or stuck thereto by cement. In another form a plate 8, Fig. 3, shaped to the back of the ticket, is cemented thereto.