baber/WOPTO huggingface dataset:
Patent GB-361450-A (GB)
Title: Improvements in or relating to circuit-arrangements for the detection of high-frequency oscillations with subsequent amplification
IPC: H03D1/10
Filed: 1930-08-30
Abstract: 361,450. Valve detecting and amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 30, 1930, No. 25979. Convention date, Oct. 4, 1929. [Classes 39 (i) and 40 (v).] The input circuit of a thermionic rectifier comprises an impedance and a condenser, the latter being connected to the rectifier cathode and also between grid and cathode of the subsequent amplifier; the condenser is shunted by a resistance and its capacity is such that no high-frequency potential exists between the rectifier cathode and either of the condenser electrodes. Fig. 2 shows a detector-amplifier DA comprising a triode with an auxiliary anode 3, the input from the circuit 1 being applied across the anode 3 and cathode 6 through a condenser 4, having negligible impedance for high frequencies, and shunted by a leak resistance 5. Rectification only takes place in the circuit 1, 3, 6, 4, the triode 6, 7, 8 acting as a lowfrequency amplifier suitably biased by resistance 10 and battery 11. A pentode, with a small auxiliary anode, may be used instead of a triode, Fig. 3 (not shown). A construction of the valve electrode system is shown in Fig. 4. The cathode 6 projects from the normal electrode system 7, 8, the projecting portion being associated with the auxiliary anode 3 whose leading-in wire also serves as a support.
Patent GB-1160188-A (GB)
Title: Low Shrinkage Welt Yarn
Inventor: STROUD ROBERT WAYNE
IPC: D01F6/60
Filed: 1968-05-30
Abstract: 1,160,188. Low-shrinkage welt yarn. E. I. DU PONT DE NEMOURS & CO. 30 May, 1968, No. 26020/68. Heading B5B. [Also in Division D1] A continuous filament yarn spun from polyhexamethylene adipamide has a shrinkage in boiling water in the range of 2% to 7% and is characterized by an initial modulus no greater than 24 grams per denier, and a retraction to modulus ratio greater than 3À5. The process for producing this low-shrinkage yarn comprises feeding a continuous filament polyhexamethylene adipamide yarn from a supply zone to a draw zone where it is drawn in at least one stage at a draw ratio no greater than 2À6, forwarding the yarn from the draw zone to a heating zone where it is heat-treated and then forwarding the yarn to a tension zone where a tension is applied in at least one stage prior to winding, and winding the yarn into a package while applying tension thereto, the application of tension to the yarn in the tension zone yielding a yarn tension factor of at least 1À6 gpd. The yarns produce better welts in hosiery knitting.
Patent GB-1184016-A (GB)
Title: Improvements in or relating to Mixing Chambers for Mixing Liquids
IPC: B01F7/00
Filed: 1968-05-30
Abstract: 1,184,016. Mixing device. R. ZIPPEL [trading as RICHARD ZIPPEL & CO. K.G.] and F. M. MAYER. 30 May, 1968 [12 Aug., 1967], No. 26044/68. Heading B1C. A mixing device comprises a chamber 1 provided with a stirrer 2 having a helical flight or thread 11 located adjacent the outlet 12 of the chamber, the helix angle relative to a plane perpendicular to the axis of the chamber being not greater than 10, in order to prevent or reduce dripping of liquid from the stirrer. The stirrer may comprise discs 7, 8 having rods 9, 10 spaced therebetween, disc 7 being secured to rotatable shaft 6. Metered amounts of materials to be mixed may be supplied to the mixing chamber via inlets controlled by valves 3, 4. The device may be used for mixing liquid resinous materials, or one or more liquids with one or more powders.
Patent GB-198951-A (GB)
Title: Expansible airtight cover for bottles, jars and the like
IPC: B65D41/22
Filed: 1922-09-27
Abstract: 198,951. Allen, R. Sept. 27, 1922. Indiarubber stoppers. -An airtight cover for a jar, bottle, &c. is made of indiarubbar with a cylindrical flange having a beaded edge and with a corrugated top as shown to enable the cover to be used on vessels of various sizes without undue stretching of the indiarubber.
Patent GB-985789-A (GB)
Title: Means for rapping the electrodes of an electrostatic precipitator
IPC: B03C3/76
Filed: 1962-07-06
Abstract: 985,789. Electrostatic precipitators. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. July 6, 1962 [July 12, 1961], No. 26092/62. Heading B2J. Means for rapping the electrodes of an electrostatic precipitator comprises a rotatable, preferably horizontal shaft 3, provided with one or more hammers 2, and actuated by a driving means, e.g. a motor 7 mounted on the wall 1 of the precipitator, which is electrically insulated from the shaft 3 by an intermediate insulating element 4, the insulating element being enclosed in a separate chamber 8 connected to the precipitator casing, the chamber being connected to a unit (not shown) for supplying scavenging air under pressure, and a branch pipe 9 being provided around the shaft 3 to project into the precipitator for discharging the scavenging air laden with dust from the chamber 8. The scavenging air is delivered through an inlet 12 into a manifold 11 and enters the chamber 8 radially through a perforated cylinder 10 mounted coaxially in the chamber. Alternatively the air may be given a rotary motion by supplying it tangentially to the chamber 8 at the end remote from the precipitator. The scavenging air prevents dust from settling on the element 4 or in the chamber 8 thus eliminating the risk of a flashover.
Patent GB-602021-A (GB)
Title: A carrying receptacle or transport box for use with tractors
IPC: B66F9/065
Filed: 1945-10-08
Abstract: 602,021. Boxes. FERGUSON, H. G., Oct. 8, 1945, No. 26118. [Class 18] [Also in Groups XXV and XXXIII] A carrying receptacle adapted to be suspended from the connecting means at the rear of the two laterally spaced lifting and lowering links on tractors similarly to that described in Specification 510,352, [Group I], comprises a box having laterally spaced members for detachable pivotable engagement with the draft links and means for restraining tipping movement of the box. The box comprises a steel sheet bent to form a base 1 and side walls 3 and reinforced by channel members 4 welded to' the outside of the box and also by angle section members 6 and a U-shaped member 5 of semi-circular cross-section. The forward members 4 extend above the sloping top edges of the box and carry pins 9 engageable with the connecting means 11 at the rear of the lifting links 12, the pins 9 being forward of the centre of gravity of the box. Releasable hook fastenings 16 on the box (see Group XXV) may engage the link 12 to restrain tipping. A front wall 2 and a removable rear wall 18 may be provided.
Patent GB-1220845-A (GB)
Title: Method of producing steel products from scraps
Inventor: TOKUSHIMA SATARO
IPC: B22F5/08
Filed: 1968-05-31
Abstract: 1,220,845. Consolidating scrap; making gears. S. TOKUSHIMA. 31 May, 1968, No. 26120/68. Headings B3A and B3H. A steel product is made from steel scrap by compressing the scrap into a bale B and hot pressing the bale to form the product. The scrap may be cleaned before compressing and the bale extruded through a tapered die C, C<SP>1</SP> which is electrically heated. The temperature of the die increases gradually towards the exit from 300‹ to between 1000‹ C. and 1200‹ C. so that the scrap is not melted during the extrusion. The extruded bar is then shaped by rolling, forging &c. Alternatively the bale is heated to 1000‹ to 1200‹ C. in a furnace C, Fig. 2 (not shown), and extruded in a heated extruder (d), before being finally shaped. The heating in the furnace is preferably high-frequency induction heating. The furnace is in a vacuum enclosure to effect degassing of the steel. The final shaping is preferably performed between dies 2, 3, which form a completely enclosed chamber so that a punch 5 can be passed through the upper die to force the heated billet 7 to flow outwards and assume the shape of the chamber. The dies shape the billet into a gear, Figs. 5 and 6 (not shown), which may have a shaft hole formed by the punch.
Patent GB-644883-A (GB)
Title: Manufacture of meta iliferous azo-dyestuffs
IPC: C09B45/01
Filed: 1947-09-29
Abstract: Metalliferous azo dyestuffs are manufactured by treating an o-alkoxy-o1-hydroxyazo dyestuff, which contains at least one sulphonic acid group and at least two azo groups, in the presence of an aliphatic amine containing a hydroxy group (e.g. mono-, di- or tri-ethanolamine), with an agent yielding metal (preferably of atomic number 24-30, especially 27-29) until the alkoxy group or groups is or are split up.  Suitable starting materials are obtainable by coupling a tetrazotized 4 : 41-diamino - 3 : 31 - dialkoxydiphenyl (especially tetrazotized diamisidine) with a coupling component or components coupling in o-position to a hydroxy group, e.g. with 2 molecular proportions (identical or different) of a naphthol-or aminonaphthol-, mono- or di-sulphonic acid or acids (of which many are specified), or with one molecular proportion of such a component and one of a different type of component coupling in o-position to a hydroxy group (e.g. a 1 - sulphophenyl - 3 - methyl - 5-pyrazolone), or by coupling any diazo compound with a middle component coupling in p-position to an amine group and having an alkoxy group in o-position thereto (e.g. 2-methoxy-5-methylaniline), diazotizing the product and coupling with an end component coupling in o-position to a hydroxy group. The products are suitable for the substantive dyeing of cellulosic fibres such as cotton, linen, and artificial silk and staple fibres of regenerated cellulose.  The zinc compounds can be converted to metal-free o : o1-dihydroxyazo dyestuffs. Examples describe the preparation of copper and nickel compounds of dyestuffs of the types mentioned above, and the dyeing of cotton in greenish-blue tints with the copper compound of the dyestuff dianisidine \sQ H-acid (2 mols.) from a bath containing sodium carbonate and sodium sulphate.  Specification 575,437 is referred to.
Patent GB-260286-A (GB)
Title: Improvements in electro-magnetic units for operating the diaphragm of sound reproducing devices
IPC: H04R11/00
Filed: 1926-10-21
Abstract: 260,286. De Forest, Ltd., L., (Assignees of Forest, L. de.). Oct. 24, 1925, [Convention date]. Magnetic instruments. - An electromagnetic unit for vibrating the diaphragm of sound-reproducing devices has a permanent magnet 1, and an armature 8 resiliently suspended from a reed fulcrum is mounted between the poles of the magnet, or between pole-pieces 2 provided on the magnet. The armature is mounted on two resilient reeds 7 mounted across the open end of a U-shaped non-magnetic support or anchor casting 5, 6 provided on a cap bolted to the transverse pole-pieces. The armature is encircled by coils 12.
Patent GB-634146-A (GB)
Title: Methods and processes of carbonating sugar factory juices
IPC: C13B20/06
Filed: 1945-10-09
Abstract: Previously limed sugar juice and carbon dioxide are simultaneously introduced into a compartment or each of several compartments in proportions that neither is ever in excess, and so that carbonation is progressively continued in the presence of products which have just been carbonated, the juice being agitated during the operation. A dense, easily filterable precipitate of calcium carbonate is thereby obtained.  The process may be started in the presence of calcium carbonate nuclei either prepared independently or resulting from a previous carbonation.  The operation may be effected discontinuously, using a single tank, or continuously, the juice flowing sequentially through a number of tanks, the carbon dioxide and juice being fed to each of the tanks.  A fraction of the precipitate in the last tank is returned to the first tank as a primer.
Patent GB-965201-A (GB)
Title: Improvements in centrifugal driers
IPC: D06F95/00
Filed: 1963-07-03
Abstract: 965,201. Spin driers. KRUPP-DOLBERG G.m.b.H. July 3, 1963 [July 4, 1962], No. 26415/63. Heading F4G. A spin drier comprises a horizontally mounted perforated drum 2 containing a reciprocating pusher plate 3 mounted for rotation therewith, to which drum the material to be dried is fed by a device comprising a tube 9 extending into the drum and a blower 11 which forces a stream of air thereinto to entrain the material. The material, e.g. cakes of wool 13, are thrown against the plate 3 by the air flow and from thence against the drum wall to advance intermittently into a discharge housing 6 under the reciprocation of the plate 3. Centrifuged liquid is collected in a housing 4 and discharged at 5. A stream of liquid may replace the air flow from the blower 11.
Patent GB-963734-A (GB)
Title: Incubators
IPC: B01L7/00
Filed: 1959-08-01
Abstract: 963,734. Incubators. E. GAILIS. Nov. 1, 1960 [Aug. 1, 1959], No. 26471/59. Heading A1M. [Also in Division H5] In an incubator having an inner and outer box structure, a thermostatically controlled electric heating element 12 extends in zig-zag manner over the outer surfaces of panels 3-7 of the inner structure, the pitch of the folds being closer towards the hinged door to give greater concentration of heat adjacent the door to compensate for the absence of a heating element in the door. The element 12 is preferably a metal covered cable.
Patent GB-751199-A (GB)
Title: Nail for plasterboard
IPC: F16B5/00
Filed: 1954-09-14
Abstract: 751,199. Nails. DUNLAP, A. H. Sept. 14, 1954, No. 26586/54. Class 89 (2). A nail for plasterboard &c. comprises a shank 10 pointed at one end 11 and having at its other end a head 12 at rightangles to the shank and provided, with openings 22. The face 13 of the head is flat and the thickness decreases radially from the centre to the periphery. In use, the board bulges into the openings 22 to relieve compression when the head is driven below the surface of the board.
Patent GB-1211327-A (GB)
Title: Electrical tab connector
IPC: H01R13/432
Filed: 1969-05-27
Abstract: 1,211,327. Two-part couplings. AMP Inc 27 May, 1969 [14 June, 1968], No. 26649/69 Heading H2E. A connector comprises a ferrule 3 and a tab contact portion 1 at opposite ends of an intermediate portion 2 having a struck-out tongue 9 having a free end directed towards the ferrule 3, longitudinal depressions 7 and, adjacent the tab portion, a normal projection. The projection may be formed from two bent lateral wings 5, 6 which may either abut or extend away from portion 2, on the same side or on opposite sides (Figs. 6-8, not shown). The depressions 7, which have corresponding projections (8) on the opposite side of portion 2 (Fig. 2, not shown), may underlie the normal projections. The connector, which may be of brass or bronze, is received in a passage in an insulating housing having a shoulder behind which the tongue 9 engages, and a surface at one end, against which the projections (or projections and depressions) abut on both sides and side walls which extend forwardly of said one end and have slots to receive the tab portion.
Patent GB-904878-A (GB)
Title: Single phase crystalline compounds and thermoelectric devices embodying the same
IPC: H01L35/16
Filed: 1960-08-02
Abstract: The invention comprises a crystalline compound having the general formula Ge1-xAxTe1 to 1,06, where A is one or more of the elements bismuth, gallium, indium, iron, scandium, lanthanum, lead, yttruim, ruthenium and thallium, and x is from 0,001 to 0,15.  The compounds are prepared by mixing appropriate amounts of germanium, tellurium and one or more of the elements A, and melting the mixture at above 800 DEG C. in a sealed, evacuated quartz vessel with agitation, slowly cooling it to 650 DEG C., allowing it to remain for several hours at this temperature, and then cooling to room temperature.  In examples compounds of formulae Ge0-9Bi0-1Te, Ge0-9Bi0-1Te1-01, Ge0-9Ga0-1Te, Ge0,85In0,15Te, Ge0,9Ru0,1Te, Ge0,9La0,1Te and Ge0,9Bi0,05Te, are prepared.  A body of the compound may be prepared in which the proportion of the component A varies along the length of the body.
Patent GB-860519-A (GB)
Title: Improvements relating to rotary swaging or forging machines
Inventor: SMITH SAMUEL
IPC: B21J7/14
Filed: 1958-08-20
Abstract: 860,519. Swaging-machines. STEVENS & BULLIVANT Ltd. Aug. 17, 1959 [Aug. 20, 1958], No. 26716/58. Class 83 (4). A swaging machine has a stationary head c with radially moving hammer-blocks d having at their outer ends enlargements d<SP>2</SP> on which act compression springs e at their inner ends. The blocks are driven by a rotary flywheel a carrying interposed rollers b. Alternate rollers are grooved and the plain and grooved rollers each actuate only one pair of blocks whereby the pairs are moved alternately. The inclined faces d<SP>5</SP> of the hammers d<SP>1</SP> assist in retracting the hammers. The machine is of particular use in shaping chisel ends.
Patent GB-729580-A (GB)
Title: Reducing the plastic extensibility of textile yarns, filaments, threads, cords or fabrics
IPC: D02J1/22
Filed: 1952-10-24
Abstract: <PICT:0729580/IV (a)/1> <PICT:0729580/IV (a)/2> <PICT:0729580/IV (a)/3> In a process for reducing the plastic extensibility of yarns, filaments, threads or fabrics consisting of a synthetic linear polymer, especially a polyamide, an already cold-drawn yarn, filament, thread or fabric formed therefrom is stretched again at an elevated temperature, and the stretching tension is maintained for at least five minutes while the yarn &c. or fabric is kept at a temperature from about 30 DEG  to about 60 DEG  C. below the melting point of the polymer.  As shown, Fig. 1, fabric 5 made from cold-drawn yarns of polycaprolactam is fed from roller 1 and then wound on roller 2, successive lengths of fabric being gripped and stretched between clamps 3 and 4 at about 100 DEG  C., and then heated to about 180 DEG  C. under the stretching tension for about 1 hour. In another arrangement, Fig. 2, the fabric 5 is stretched between a roller 11 and a braking system 7, 8, 9, 10 by applying tension to a housing 12 in the direction of arrow 6; the apparatus operates intermittently, each part of the fabric being subjected to stretching for 30 minutes at 165-185 DEG  C. at a tension slightly below the breaking tension.  A cold-drawn yarn or cord made from polycaprolactam is, in one example, stretched at 100 DEG  C. by 38 per cent, heated in the stretched condition to 160-175 DEG  C. for 45 minutes, and cooled while the tension is maintained.  In another example the cord is drawn continuously through a bath heated to 175 DEG  C., each part of the cord remaining in the bath for 7 minutes and being stretched therein by 40.5 per cent.  In a further example, the stretching is performed at 100 DEG  C. in steam; the stretching is effected by winding the cord around two rollers 16, 17 (Fig. 3) and applying tension in the direction of arrow 6, the rollers being kept apart by a rod 18 to maintain tension during the subsequent heating and cooling.
Patent GB-189297-A (GB)
Title: Improvements in honeycomb and the like members
IPC: B21D53/02
Filed: 1921-10-11
Abstract: 189,297. Robins, T. H. Oct. 11, 1921. Milling. - Milling- cutters for slitting corrugated sheet metal are mounted as a gang and act on the work 10 while the latter is held by a similarly corrugated block 9. The block is provided with recesses to allow for the passage of the milling- cutters.
Patent GB-213850-A (GB)
Title: Improvements in and relating to wind screens for vehicles
IPC: B60J1/00
Filed: 1923-10-27
Abstract: 213,850. Drabble, H., and Kyle, D. W. E. Oct. 27, 1923. Windscreens.-A windscreen for the rear seats of motor vehicles of the kind mounted on crossed pivoted arms is hinged at its centre and is supported at three points on the arms. The screen is carried in sockets 6, 7 on the arm 1 and a socket on the arm 2, the arms being pivoted at 3, 4 to the back of the front seat. The distance between the pivots 3, 4 may be varied. One arm is secured to a bracket 5, the other passing through it. The screen is clamped in position by a screw 9 on the socket 8 which is connected to a bracket 11 on the arm 1 by a rod 10.
Patent GB-297466-A (GB)
IPC: B23K11/00
Filed: 1928-09-20
Abstract: 297,466. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Sept. 23, 1927, [Convention date]. Direct connections between conductors.-In electric butt-welding fine wire cables to massive metal parts such as terminal blocks, the end of the cable is first embraced by a sleeve consisting of a relativelv thick wire wound in close helical form on the end of the cable which is then welded together with the cable to the massive part. Subsequent breaking away of the outer wires when subjected to bending stresses is thus avoided. The Specification as open to inspection under Sect. 91 (3) (a) states that the joint may be formed by brazing. This subject-matter does not appear in the Specification as accepted.
Patent GB-459318-A (GB)
Title: Improvements in or relating to seed disinfectant compositions
IPC: C25B1/14
Filed: 1935-09-30
Abstract: Seed disinfectants comprise, in conjunction with a diluent, an organo-mercury compound of the formula <FORM:0459318/VI/1> wherein R represents CCl3 or CBr3, R1 either hydrogen or a hydrocarbon radicle, R11 either hydrogen or hydrocarbon radicles which may form part of a ring, and Y a negative radicle such as acetoxy or halogen.  The said mercury compounds are prepared according to Specification 459,462, [Group IV].  Diluents specified are finely-divided clay, chalk, talcum, kaolin and kieselguhr.  Other fungicides, stimulating agents, compounds capable of increasing the adhesiveness and agents to prevent dusting may also be present in the compositions.  A table is given showing the effect on Fusarium-infected seeds of compositions containing 98-99 parts of kaolin and 1-2 parts of the following mercury compounds of the above formula: a -trichloro-b -ethoxy (methoxy, isopropyloxy, n-butoxy or isoamyloxy)-b -acetoxymercuri-ethoxyethane, a -trichloro-b -methoxy-b -acetoxymercuri-cyclohexyloxyethane and -a  trichloro - b  - ethoxy - b  - acetoxymercuri - isopropyloxyethane.  The table also compares the effect of the above compositions with compositions containing known mercury compounds.  The Specification as open to inspection under Sect. 91 also refers to organo - mercury compounds of the above formula in which R represents a substituted or unsubstituted hydrocarbon radicle such as an alkyl, aryl or alicyclic radicle, R1 is a substituted or unsubstituted hydrocarbon radicle, such as an alkyl, aryl, aralkyl or alicyclic radicle, and in which the hydrogen atom shown in the formula is replaced by R1.  These compounds may be prepared by reacting a mercury salt with an unsaturated organic compound having an ethylene linkage in the presence both of the diluent and of an organic oxo compound.  Reference is also made to bromal-ethyl-acetomercuri-ethylacetal and chloral-ethyl-chloromercuri-propylacetal as constituents of the compositions.  This subject-matter does not appear in the Specification as accepted.
Patent GB-505358-A (GB)
Title: A new or improved process for the formation of patterns on sheet metal
IPC: B44B5/00
Filed: 1938-10-06
Abstract: 505,358. Embossing metal. LONDON ALUMINIUM CO., Ltd., and ROLLINS, S. W. Oct. 6, 1938, No. 27036/37. [Classes 83 (ii) and 83 (iv)] Stamping ; spinning.-Sheet metal is patterned by placing a pattern sheet, e.g. wire mesh between two metal sheets and then stamping or spinning the layers. The sheets may be of different hardness, e.g. one aluminium and one brass so that the pattern may be formed on the softer sheet.