baber/WOPTO huggingface dataset:
Patent GB-490709-A (GB)
Title: Improvements in rotary cutters for machining wood and like materials
IPC: B27G13/10
Filed: 1937-07-27
Abstract: 490,709. Cutters for wood - working machines. DUCKE, C. July 27, 1937, No. 20820. Convention date, July 28, 1936. [Class 145 (i)] In a rotary surfacing cutter having inclined hollow cylindrical knives a mounted in cavities f in a rotatable body g, as described in Specification 214,115, [Class 145 (i)], a spring - pressed ball c, Fig. 4, engages in equally - spaced depressions b formed in a circular groove extending round the cutter. These enable the knives to be rotated through definite and equal amounts when turning them to bring new portions of the cutting-edge to operative position, so that all knives will be used to the same extent. To provide different cutting speeds appropriate for machining blocks of wood, paper, pressed board, and fibre, knife cavities f are provided at different radial distances in the rotary body g. In the cutter shown, pairs of cavities are arranged on two diameters D, d, the knives being inserted in the outer or inner cavities according as a greater or lesser cutting speed is desired. The knives are secured by clamping bolts h each passing through one side of two adjacent cavities and having recesses forming a continuation of the cavity wall, so that endlong movement of the bolt clamps the knife. A plate n secured to or integral with the bottom of the cutter body prevents cuttings passing through the knives from falling back on to the work, and a fan disc with blades r delivers them, together with cuttings passing through a gap q between the plate n and an annular disc o at the bottom of the housing t, to an outlet p.
Patent GB-639511-A (GB)
Title: Improvements in closures for jars and like containers
IPC: B65D45/28
Filed: 1948-08-09
Abstract: 639,511. Vacuum closures. ROGERS, Ltd., H. B., and PARKER, B. V. Aug. 9, 1948, No. 20978. [Class 125(iii)] A vacuum closure for a standard jamjar 7 with beaded rim 7a at its mouth, comprises a glass disc 4 with a peripheral flange 4b having an annular groove, conforming with the rim of the jar mouth, and having a depending portion 4a fitting within the mouth of the jar. A sealing ring 5 is received in the annular groove. During sterilizing, the disc is held in position by a spring clip 6 or the like. The under surface of the disc may be recessed as shown, or may be flat to reduce the air space in the jar in which case the upper surface is correspondingly recessed, and may be provided with a central raised portion which is engaged by the spring clip.
Patent GB-1490157-A (GB)
Title: Synchronous electric machine stator windings
IPC: H02K17/14
Filed: 1975-05-16
Abstract: 1490157 Windings for dynamo-electric machines BBC BROWN BOVERI & CO Ltd 16 May 1975 [20 May 1974] 21007/75 Heading H2A A change pole polyphase synchronous electric machine including a stator comprising two interleaved, multi-layer windings 1, 2, wound for different pole numbers, both windings being formed of bar conductors 3, 4 which are mounted in slots in the stator core and have circumferentially cranked portions extending axially beyond the ends of the core, wherein the winding pitches w 1  and w 2  of the two windings differ by an even number C of slot pitches, both windings being either wave windings in which case C=w 1 -w 2  has any of the values 2, 4, 6, &c., or lap windings, in which case C has any of the values 0, 2, 4, 6, &c., connecting members being provided at both ends of the stator for interconnecting the axially extending portions of coil sides in different layers of each winding, some of the connecting members, 5, being radially disposed and others, 6, being non- radially disposed. The windings 1 and 2 shown are respectively 8 and 10 pole windings and the non-radial connecting members 6 interconnect conductor ends spaced apart by two slot pitches. As shown, the winding pitches w 1  and w 2  differ by two slot pitches. In a further winding, Figs. 8, 9 (not shown), in which the winding pitches differ by four slot pitches, the non-radial connecting members 6 interconnect conductor ends spaced apart by four slot pitches. The winding layouts disclosed are said to allow a wider choice of different pole numbers than is available in the prior art, a free choice in the selection of spread values for the two windings and suppression of undesirable harmonics.
Patent GB-668142-A (GB)
Title: Bridge for electrical measurement and indication
IPC: G05B1/02
Filed: 1950-08-25
Abstract: 668,142. Bridge circuits. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 25, 1950 [Sept. 1, 1949], No. 21048/50. Class 37. A bridge circuit for measuring quantities which can be reproduced as a varying impedance element, with indication or initiation of certain events at a certain adjustable value, has this impedance element arranged as a common arm of two bridge connections, the diagonal branch of one of the bridges being arranged for measuring the primary quantity, and the diagonal indicator branch of the other bridge for indicating the difference from a value adjusted in advance of the primary quantity achieved, so that each bridge is fed by different parts of the same voltage, connected to the bridges by means of current separating means in the bridges. In the temperature regulator shown in Fig. 2, a temperature dependent resistor 1 located at a site where the temperature is to be measured forms a common arm of two Wheatstone bridges of which the other arms are formed by fixed resistors 2, 3 and 4, 5 and adjustable resistors 6 and 7. The bridges are connected in parallel and are supplied from an A.C. source 8. Rectifiers 9, 10 are connected in the arms of the two bridges, with the exception of the common arm, those in one bridge being connected oppositely to those in the other. One bridge, consisting of the arms 1, 2, 3, 6 is traversed by one half-period of the alternating current while the other bridge, consisting of the arms 1, 7, 5, 4, is traversed by the other half-period. In the diagonal of the first bridge is an instrument 11, the reading of which depends on the resistor 1 and may have its zero adjusted by the resistor 6. The other bridge has, in its corresponding diagonal, a pair of terminals 12 which are intended for connection to an indicating or initiating member. The current in this diagonal may be adjusted by the resistor 7, which may be provided with a scale graduated according to the reading of the instrument 11. In a modification the two bridges have two arms in common. Fig. 4 shows an arrangement adapted to be fed by D.C. at terminals 16. The two bridges consist of arms 1, 2, 13, 14 and 1, 14, 15, 4 and have an instrument 11 and terminals 12 in corresponding diagonals. A vibrator contact 17 connects the bridges alternately to the D.C. voltage whilst a vibrator 18 is arranged at the common connection point of the diagonals, the contacts 17, 18 being synchronously controlled. In the modification shown in Fig. 6, the two bridges comprise the elements 1, 2, 13, 14, 11 and 1, 14, 15, 4, 12. In series with the resistors 2, 13 are thermionic valves 21, 22 connected to cooperate. Thermionic valves 23, 24 are connected in series with the resistors 4, 15 and counteract the valves 21, 22. The control grids of the valves are connected to the cathodes through the secondary windings of transformers 27, 28, the primary windings of which are fed in parallel from an A.C. source 25. The anode voltage is supplied from a D.C. source 26. Differential transformers may alternatively be employed.
Patent GB-947872-A (GB)
Title: Cartons
IPC: B65D5/50
Filed: 1960-06-15
Abstract: 947,872. Cartons. D. TEUKOFF. June 15, 1960, No. 21054/60. Heading B8P. A carton is folded up from a blank 1 as in Fig. 1, to form a bottom 2, end walls 16 to side walls each comprising two plies 8, 9, the latter innermost ply terminating short of the lower juncture of the side wall with the bottom and having an extension strip 12 with a free edge 18 overlying the bottom, the two strips 12 co-operating to form a flexible false bottom, Fig. 5. The plies 8 and 9 of each side wall are stuck together, after which the blank 1 is folded along scores 4 and 5 to bring end flaps 19 and 20 in overlapping adhesive relationship; the carton is transportable in this state and is erected by folding its opposite ends upright along scores 15. The bottom 2 of the box has an aperture 3 for inspection of the goods.
Patent GB-796021-A (GB)
Title: A method and device for washing fibrous material
IPC: D06B5/00
Filed: 1955-07-21
Abstract: <PICT:0796021/IV (b)/1> <PICT:0796021/IV (b)/2> Apparatus for washing wool fibres in paraffin, or water containing a washing agent such as alkali alkyl sulphate, comprises a housing 1 in which a wire or nylon brush 2 rotates in an anticlockwise direction.  The fibres are fed through a feed funnel 3 where they are sprayed, into a housing 1, and may be subjected to a kind of carding effect by ribs formed by solid protuberances, pins or elastic wires on the inside wall of the housing extending parallel with or at a small angle to the brush axis.  In Fig. 4 the ribs are constituted by a corrugated plate 9, and the washing liquid is caused to pass through perforations in the corrugated plate so as to flow in a radial direction.  Examples of wool fibre and washing liquid quantities, together with brush speeds are given, and the washed fibre may be led across a vibrating strainer (not shown) and may be sprayed or given an additional wash.
Patent GB-1402236-A (GB)
Title: Tape loading device for magnetic recording and or reproducing apparatus
IPC: G11B15/665
Filed: 1973-05-03
Abstract: 1402236 Auto-threading device for a helicalscan tape recorder SONY CORP 3 May 1973 [4 May 1972] 21166/73 Heading G5R An auto-threading device for a helical-scan recorder, in which a tape loop L is pulled from a cassette 4 and wound round a head drum 1 by a pin 29 mounted on a rotatable ring 21, includes a guide pin 44 which is pivotally connected to the ring 21 and is moved outwardly thereof by a fixed actuator 52 as the loop L approaches its operative position to hold the tape run L 2  away from the drum 1. The guide pin 44 is mounted on one of two pivotally connected arms 45, 49, the other of which is pivoted to the ring 21 at 46. Initially (chaindotted lines), the arms 45, 49 are extended along the ring 21 with the pin 44 leading and a depending pin 50 on the arm 49 retained in a recess 51 in the ring 21. The ring 21 extends beneath cassette front opening 10 and pins 29, 33, 42, 44 are all behind the tape run T 1 . Upon counterclockwise rotation of the ring 21 by a motor 24, the depending pin 50 eventually runs into a slot 53 of the actuator 52, deflecting the pin 44 outwardly. Continued rotation of the ring 21 causes the arms 45, 49 to jack-knife so that pin 44 adopts a trailing position as shown. Latches (155, 254), Figs. 6, 8 (not shown), may be provided for locking the pin 44 in its outer position, and are actuated by a cam device (164, 165) or by the arm (149). Finally, guide pin 33 on pivoted arm 34 is pulled away from the cassette 4 through a striker 41 on the ring 21 engaging a bell-crank 38, to hold tape run L 1  against drum 1 and an erase head 16. An arm 26 supporting both the pin 29 and a pinch roller 28 is pivoted by a solenoid 32 to engage the pinch roller 28 with a capstan 14.
Patent GB-1110773-A (GB)
Title: Glass working machines
IPC: C03B23/11
Filed: 1965-05-19
Abstract: <PICT:1110773/C1/1> <PICT:1110773/C1/2> In glass working machines in which glass tubes are further processed as by being made into bottles, the glass tubes 16 are fed to an empty chuck 11 from a rotatable magazine 15 through an apertured plate 18 by feed apparatus including a switching device as in Specification 855,887 and each magazine 15 has a locking device which normally prevents the magazine from rotation but releases it when operated by the switching device, the locking device holding the magazine in correct position for a glass tube to be fed to a chuck.  The locking device includes a pin 42 on the underside of magazine 15 corresponding to each tube 16 held upright in a holder 17.  The switching device includes a slider 19 mounted on a frame 20 operated by a control roller 22 and the locking mechanism 46 mounted on an arm 37 on the slider 19 together with the switching mechanism 38, the lock 46 normally spring pressed to engage a pin 42 being on one end of lever 45, 47 and lever 47 having a roller 48 to engage a cam 43 for disengagement of pin 42 as slider 19 is moved inwardly to rotate the magazine.
Patent GB-892818-A (GB)
Title: Low adhesion coatings
IPC: C09J7/38
Filed: 1958-07-03
Abstract: 892,818. Low adhesion coatings; laminates. MINNESOTA MINING & MANUFACTURING CO. July 3, 1958 [July 3, 1957], No. 21348/58. Class 140. A normally tacky pressure-sensitive adhesive sheet or tape, which may be in roll form, comprises a flexible backing having a coating of pressure-sensitive adhesive on one face, and on the other face a low adhesion backsize formed of a solid oleophobic fluorocarbon polymer which does not have a tack temperature, which is defined as the lowest temperature at which the polymer exhibits tack, below 60 C. and which has a molecular structure including non- fluorinated organic groups which bind to the flexible backing. A liner having a low adhesive coating comprising the solid oleophobic fluorocarbon polymer on one or both sides may be wound into rolls of double-coated pressuresensitive adhesive tapes, used as spacers, or applied to articles having an adhesive surface. The backing may be non-fibrous, e.g. films of regenerated cellulose, cellulose acetate or polyester, such as the polyester of ethylene glycol and terephthalic acid, or fibrous, e.g. dense highly calendered paper, felted or woven backings made from textile fibres which may be sized, or paper which may be sized with glue, casein which may be insolubilized with formaldehyde, shellac, alkyd resin, or a cellulose derivative such as ethyl cellulose or cellulose acetate. The adhesive may comprise a natural or synthetic rubber blended with a tackifier resin, e.g. a terpene resin. Suitable fluorocarbon polymers, which may be cross-linked or vulcanized, are fluoropolymethacrylates, e.g. 1,1-dihydroperfluoro alkylate methacrylate polymers such as poly (1,1-dihydroperfluoro hexyl methacrylate), fluoro-polyvinyl carbamates (urethanes), e.g. the reaction product of polyvinyl alcohol (partially hydrolysed polyvinyl acetate) with 1,1-dihydro perfluoro alkyl isocyanate wherein the perfluoroalkyl chain contains 3 to 12 carbon atoms, thermosetting polymers such as fluorotriazine-formaldehyde, e.g. condensation product of N-methyl perfluoro octane sulphonamido diamino triazine and formaldehyde, homo-polymers or copolymers of a fluorovinyl monomer and a comonomer which may or may not be fluorinated, e.g. polymers of vinyl esters of perfluoroalkane sulphonamido alkylene monocarboxylic acids such as the vinyl ester of N-methyl, N-perfluoro-octane sulphonyl glycine, and polymers of the methacrylate esters of N-alkyl, N-alkanol perfluoro alkane sulphonamides, e.g. methacrylate ester of N-ethyl N-ethanol perfluoro-octane sulphonamide.
Patent GB-586597-A (GB)
Title: Manufacture of dyestuffs capable of being chromed
IPC: C09B45/16
Filed: 1943-12-22
Abstract: Monoazo dyes, capable of dyeing wool with or without chroming by the after-chroming method, are made by coupling diazotized 2-aminophenol-4-phenylketone-31-sulphonic acid, or a substitution product thereof not containing a nitro group, with 2-aminonaphthalene-3-carboxylic acid.  Substitution products specified are the 41-chloro, 41-methoxy and 41-methyl derivatives of 2-aminophenol-4-phenylketone-31-sulphonic acid.  The diazo components are obtainable from sulphonated 3-nitro-4-chlorodiphenyl ketones by replacing the chlorine atom by a hydroxy group by heating with soda lye, and reduction of the nitro group.  Specification 324,090, [Class 2 (iii)], is referred to.  The Specification as open to inspection under Sect. 91 is not limited as regards the substituents which may be present in the diazo components.  It refers also to the application of the dyestuffs to wool by the single bath chroming process.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1164325-A (GB)
Title: Preparation of Cyclodecanone
Inventor: HOWELL FREDERICK HAROLD
IPC: C07C51/31
Filed: 1966-11-24
Abstract: 1,164,325. Cyclodecanone. GEIGY (U.K.) Ltd. 23 Nov., 1967 [24 Nov., 1966], No. 21516/68. Divided out of 1,164,324. Heading C2C. Cyclodecanone is prepared by reacting a carboxylic acid ester of 6-hydroxycyclodecanone with hydrogen in the presence of a Raney nickel catalyst at a temperature of at least 200‹ C.
Patent GB-1423104-A (GB)
Title: Method for producing coke in a coke oven
Inventor: ROHDE WOLFGANG DR ING
IPC: C10B37/00
Filed: 1974-05-15
Abstract: 1423104 Charging coke ovens BERGWERKSVERBAND GmbH and DIDIER ENG GmbH 15 May 1974 [19 May 1973] 21517/74 Heading F4B  In a method for producing coke in a coke oven, the oven is charged with moist or preheated coal from continuous systems which extend along the longitudinal axis of the oven battery and are provided with connections which lead to the charging apertures of the ovens, the coal is charged directly into the oven from a supply bunker, dispensing with a measuring bunker or a measuring device on the supply line, and limiting the amount of coal supplied to each oven by level measurement. The level measuring device according to Specification 1,423,103 is suitable for measuring and regulating the charge level of the coal in the oven.
Patent GB-660646-A (GB)
Title: Improvements in and relating to mechanical clutch devices
Inventor: WEBSTER ALEXANDER HYDE
IPC: F16D43/202
Filed: 1948-08-03
Abstract: 660,646. Overload-release clutches. WEBSTER & CO., Ltd., R. W. Aug. 11, 1949 [Aug. 3, 1948], No. 21633/50. Divided out of 660,586, Class 80 (ii) An overload-release clutch comprises a roller 123 on an arm 121 eccentrically pivoted on a driving disc 120 and pressed by a spring, not shown, into a peripheral clutch-recess in a disc 125, fast with a freely-mounted bevel-geared driven sleeve 109; and a mask-plate 126 which is freely-mounted adjacent the driven disc 125 and has a peripheral recess which, in the driving position aligns with the driven-disc recess to permit entry of the clutch roller 123. A spring, not shown, urges the mask-plate 126 circumferentially forwardly towards a limit-stop on the driven disc 125, so that when overload causes the roller 123 to ride forwardly out of the aligned recesses in the discs 125, 126, the maskplate 126 is rotated forwardly by its spring in the same relative sense, disaligning the recesses to allow the roller 123 to ride freely on the periphery of the discs, thus breaking the drive. The mask-plate 126 is retained against its limitstop by a pawl-lever 134 acting on a freelymounted ratchet-disc 132 geared to the maskplate 126 through a bevel idler 128 which reverses the sense, so that, to re-set the maskplate 126 backwards for clutch re-engagement, the pawl-lever 134 must be operated to turn the ratchet disc 132 in the forward direction. Release of the clutch may break the circuit of a driving motor. Specification 660,586 is referred to.
Patent GB-1186232-A (GB)
Title: Improvements in or relating to Semiconductor Diode Devices.
Inventor: LOACH BERNARD COLLINS DE JR
IPC: H03B9/12
Filed: 1967-05-10
Abstract: 1,186,232. Diode oscillator and amplifier circuits. WESTERN ELECTRIC CO. Inc. 10 May, 1967 [16 May, 1966], No. 21743/67. Heading H3T. [Also in Division H1] An oscillator or an amplifier incorporates a PININ or NIPIP diode which when suitably energized forms an impact ionization transittime device exhibiting a dynamic resonance characteristic. The oscillator incorporates the diode 10 between the conductive post 22 and the resonant cavity 21. Voltage tuning is achieved by variable resistor 24 or by mechanical means. The oscillator may be locked by injecting control power at 27. Alternatively iris 26 can be used for simultaneous injection of control power and for output. As an amplifier, the input signal is injected at 27 and abstracted at 26. Alternatively a single port may be used together with a circulator to separate input and output signals.
Patent GB-456025-A (GB)
Title: Improvements in or relating to wheel-carrying frame structures for cycles and other road vehicles
IPC: B62K25/28
Filed: 1935-07-31
Abstract: 456,025. Spring frames for cycles. VINCENT H. R. D. CO., Ltd., and VINCENT, P. C., Great North Road, Stevenage, Hertfordshire. July 31, 1935, No. 21774. Addition to 290,375, [Class 136 (iii)]. [Class 136 (iii)] In a spring frame for cycles &c., as described in the parent Specification one or more of the individual members of the triangular side frames of the wheel - carrying frame are detachably but rigidly connected to the appropriate transverse connecting- member at positions' lying away from the longitudinal axis of the latter member. As shown, the members 11, 12, 13 of the triangular frames are detachably secured by bolts in split sockets 18 formed on and projecting angularly from the transverse connecting-members 15, 16. In a modification, the ends of the members 11, 12, 13 are flattened and bolted to lugs projecting from members which are plugged and welded into the ends of the transverse connecting-tubes.
Patent GB-597733-A (GB)
Title: Improvements in dyeing
IPC: D06B5/12
Filed: 1945-08-24
Abstract: Textile materials in package form are dyed with the aid of an aqueous dispersion of water-insoluble dyestuffs or dyestuff components which has been filtered before it reaches the package by means of a filter capable of preventing <PICT:0597733/IV/1> the passage of particles having a dimension in excess of 0.0005 mms.  An apparatus in accordance with the present invention comprises a reservoir 1 for the dye liquor, a feed line 12 leading to a dyeing vessel arranged to accommodate a bobbin or other package, a conduit 12 leading from the dyeing vessel back to the reservoir, and, included in the circuit, preferably between the reservoir and the dyeing vessel in the direction of flow, a pump 4 and also a filter 3 which is preferably located in the dye reservoir at the head of the feed line. Preferably the circuit includes conduits and valves and/or a reversing valve 5 which enable the direction of flow of the dye liquor through the package to be reversed without reversing the flow either through the pump or through the filter.  In addition, preferably, the pump is reversible or there is provided a reversing valve so that the dye liquor may be passed in the reverse direction through the filter, with the object of displacing particles of dyestuff adhering to the filter.  Finally the return conduit for returning dye liquor from the dyeing vessel to the reservoir is preferably so arranged that the returning dye liquor washes the feed surface of the filter thereby securing a mechanical removal of adhering dye particles.  Specifications 219,349, 224,925, 242,393, 242,711, 269,960, 273,819 and 273,820, [all in Class 15 (ii)], are referred to.