baber/WOPTO huggingface dataset:
Patent GB-1414141-A (GB)
Title: Peg boards
IPC: G09F7/06
Filed: 1972-04-26
Abstract: 1414141 Peg boards SIGNCO Ltd 26 April 1973 [26 April 1972] 19459/72 Heading G5C A peg board 10 having apertures 12 formed at least partially therethrough, is characterized in that the face or one of the two faces of the board which include mouths of the apertures is at least partially covered with flocking 16. Discrete particles are electrically charged and blown on to a layer of glue or solvent on said face 14, within the electrostatic field. The flocking may extend over the adjacent portions of the aperture walls. The apertures are of circular or cruciform section. When the apertures extend completely through the peg board, a backing plate 22 may be provided. A plurality of apertured panels may be clipped together to form the peg board, the flocking being applied subsequently.
Patent GB-915210-A (GB)
Title: Improvements in or relating to variable size paper folding machines
Inventor: AYRE COMLEY MILBURN
IPC: B65H45/16
Filed: 1960-06-01
Abstract: 915,210. Folding paper. STRACHAN & HENSHAW Ltd. May 31, 1961 [June 1, 1960], No. 19460/60. Class 100 (1). A rotary paper folding machine comprises a pair of co-operating folding cylinders the circumferential length of each of which can be varied. A web 20 of paper is delivered from a rotary printing-machine and is fed into the nip of cylinders 11, 12 which may be constructed in the way described in Specification 741,130 so as to allow variation of their circumferential lengths and which are adjusted so that their peripheral speeds are equal to the peripheral speed of the printing cylinder. Cylinder 11 carries three tucker blades 13, three knife slots 14 and three retractable rows of pins 16. Cylinder 12 carries three gripper jaws 18 and three knives 17. The printing cylinder prints two sheet lengths per revolution; the circumference of each of the cylinders 11, 12 is equivalent to three sheet lengths. Once the circumferential length of the cylinders 11, 12 has been adjusted the cylinders are locked and function in the normal way, cutting sheets from the web 20, collecting sheets on the cylinder 11, folding the collected sheets into the grippers 18 by means of the tucker blades 13 and transferring the folded sheets to a transfer cylinder 31. The transfer cylinder 31 may transfer the sheets to a second such cylinder 35 which deposits them on delivery tapes 36, or may transfer successive sets of folded sheets alternately to the cylinder 35 and delivery tapes 32. The cylinder 31 may have tucker blades 38 which co-operate with gripper jaws 39 on the cylinder 35 to produce a second fold, parallel to the first, in the folded sheets. Cut sheets need not be collected on the cylinder 11, in which case each sheet is folded singly after being cut. The folded sheets may then be collected, in twos, for example, on the cylinder 35 for delivery to the tapes 36. A further fold may be made in the sheets at right-angles to the other fold(s) by means of a chopper fold unit 33 or 37. Such a unit comprises means for forming a slot such as a pair of spaced rollers 40, Fig. 13, and a blade 41 which folds the sheets down into the slot as they are passing over it. Specification 741,130 is referred to.
Patent GB-969202-A (GB)
Title: Improvements in or relating to electronic amplifiers
Inventor: WYNNE THOMAS ERIC
IPC: H03G1/00
Filed: 1960-06-02
Abstract: 969,202. Gain Control. MINISTER OF AVIATION. Aug. 21, 1961 [June 2, 1960], No. 19522/60. Headings H3T and H4R. In order to control the gain of a transistor amplifier there is included in its signal path an attenuator in the form of a Wheatstone bridge having in at least one of its arms a variable capacitance, comprising a back-biased, semiconductor diode,- the effective value of which is dependent upon the amount of an applied D.C. bias derived.from the output of the amplifier. As described;. the arrangement is applied to, transistor amplifier comprising cascode stages SS1, SS2 in which the stage gain is controlled automatically by means of a gain control diode rectifier D3 feeding back a D.C. control.. voltage to these stages. In addition, a further cascode stage SS3 is provided feeding a diode rectified the D.C. output of which is smoothed by filter network R3, C5 and applied to vary the effective capacity of back-biased diodes D1, D2. The diodes D1, D2 comprise two arms of a capacity bridge network, the other arms of which comprise respectively a fixed capacitor CF and an adjustable capacitor CT by which the bridge balance may be adjusted. The bridge is fed with signal across one diagonal, by means of transformer T1 and the other diagonal feeds the signal to the amplifier input via transformer TO. The D.C. bias is applied to the diodes over resistor R2 and D.C. blocking condenser C4, a similar resistor R1 in series with corresponding condenser C3 being connected to the opposite corner of the bridge to maintain the balance.
Patent GB-1165444-A (GB)
Title: Improvements in Transmitting Aerials
IPC: H01Q15/02
Filed: 1967-04-27
Abstract: 1,165,444. Aerials. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISS BRANDT. 27 April, 1967 [28 April, 1966], No. 19551/67. Heading H4A. A transmitting aerial A is protected by a radome R which comprises a plurality of mutually parallel conductive elements C to compensate for reflections from its surfaces. The elements C form flat curves around the aerial which are parallel to the electric field vector produced by said aerial, and which are separated from one another by a distance substantially equal to a half-wavelength at the central useful frequency of the aerial. As described, the aerial A is made up of stacked panels of horizontal dipoles D arranged in square formation for omnidirectional radiation, and the radome R is a circular cylinder of fibreglass. The elements C are circular cross-section horizontal wire rings fixed to the inner surface of the radome R. Alternatively, the elements C may be fixed on the external surface of the radome, or may be embedded therein Fig. 4 (not shown). In other arrangements the elements C each consist of two wires paralleled and joined together, Figs. 2, 3 (not shown), or of rectangular cross-section metallic bands, Figs. 5, 6, 7 (not shown).
Patent GB-623724-A (GB)
Title: Artificial estrogenic substances
IPC: C07C45/74
Filed: 1944-10-11
Abstract: Oestrogenic agents are prepared by condensing <FORM:0623724/IV (b)/1> wherein X is alkyl, e.g. in the para-position and R1 is selected from the class consisting of H and alkyl in the presence of a condensing agent, selected from the class consisting of inorganic mineral acids and inorganic bases, thereby forming a compound of the formula <FORM:0623724/IV (b)/2> reacting the latter at room temperatures with R2MgX1, wherein R2 is alkyl and X1 is any halide except fluorine, thereby forming solid and liquid isomers of diphenyl propanone represented by the formula <FORM:0623724/IV (b)/3> separating the solid from the liquid isomers thereof, treating the solid isomers under refluxing conditions with R3MgX1, where R3 is an alkyl group and X1 is the same as before, thereby producing a compound of the formula <FORM:0623724/IV (b)/4> hydrogenating the latter in the presence of a hydrogenating catalyst to a compound of the formula <FORM:0623724/IV (b)/5> and de-etherifying this compound in presence of a material selected from the group consisting of inorganic mineral acids and inorganic bases, thereby forming a compound of the formula. The <FORM:0623724/IV (b)/6> solid and liquid isomers of diphenyl propanone may be separated into racemic pairs and each pair subjected to the treatment given to the solid isomers described above.  The product may be esterified or etherified in the usual manner. Detailed examples are given.ALSO:Compounds having the structure: <FORM:0623724/VI/1> in which each X is H, alkyl, acyl of aliphatic or aromatic type, or an inorganic ester radical such as SO3H or PO3H2 which may be obtained by condensing one of these compounds having a terminal OH group with an inorganic acid; and R is H or alkyl, at least one R being alkyl; in which the OX groups may be symmetrical or not, and may be the same or different and in which each alkyl R may be the same or different, are utilized as estrogenic and bactericidal compounds.
Patent GB-531622-A (GB)
Title: Improvements in or relating to insulated electrical conductors
IPC: H01B11/18
Filed: 1939-07-06
Abstract: 531,622. Electric cables. PIRELLIGENERAL CABLE WORKS, Ltd., and BARRON, H. July 6, 1939, No. 19669. [Class 36] In cables especially of the concentric type for high frequency currents, to keep the permittivity low, the insulation is a thermo-plastic material having a cellular structure of a kind in which closed gas-filled cells are separated from each other. The thermo-plastic material may be of one of the following types : polymerized vinyl, polymerized substituted vinyl, polymerized divinyl, polymerized olefine, polymerized isobutylenes and unvulcanized rubber. To the material may be added such plasticizers as triphenyl phosphate, dibutyl phthalate, amyl phthalate or chlorinated naphthalenes. The cellular structure may be produced by passing a gas such as air, nitrogen or oxygen into the material when warm and fluid, with simultaneous churning or mixing. Specification 334,840, [Class 36], is referred to.
Patent GB-689674-A (GB)
Title: Improved abrasive impregnated cutting and polishing wheels, buffs, bobs and sticks and method of manufacturing same
IPC: B24D3/34
Filed: 1951-08-21
Abstract: 689,674. Polishing tools. DUDGEON, R. F., and TYZZER, G. H. Aug. 21, 1951 [Aug. 30, 1950; Jan. 26, 1951], No. 19698/51. Class 60. A polishing member in the form of a wheel, stick or bob comprises an unfabricated fibrous base mixed with abrasive particles bonded to the fibres in the base by a thermo-setting resin. The member is made by assembling the materials in a rotary mixer to obtain a uniform distribution of the abrasive particles and then placing the mixture together with any necessary metal inserts in a mould which has previously been heated to a temperature of 300‹ to 350‹ F. The mould is subject to a pressure of 1 to 4 tons per square inch. The moulded member is cured under pressure until polymerisation of the resin is complete whereupon it may be finally finished in a lathe with a diamond tool. The following proportions may be used for the mixture:- Commercial cotton filled phenol-formaldehyde moulding powder (containing 40 to 45 per cent phenol-formaldehyde resin)-40 to 50 parts, aluminium oxide grit-40 to 50 parts, free phenolformaldehyde resin-5 to 10 parts, metallic soap lubricant, such as zinc stearate-0.4 to 0.8 parts. The polishing wheels may be coloured in a distinct manner to correspond with the grade of abrasive used by the addition of a small amount of wood-filled phenol-formaldehyde resin to the mixture. The finished article then has a spotted or mottled appearance.
Patent GB-177108-A (GB)
Title: Improvements in or relating to cones or sticks of menthol or other similar substances
IPC: A61K9/02
Filed: 1921-07-25
Abstract: 177,108. Webb, H. E., and Evans, Sons, Lescher, & Webb, Ltd. July 25, 1921. Holders for menthol &c.-A menthol cone is perfumed by saturating the strengthening core of feathers, wool &c. with the perfume and dipping the perfumed core into molten menthol contained in a mould and allowing the same to solidify.
Patent GB-375567-A (GB)
Title: Improvements in or relating to implements for lifting and transporting crops
IPC: A01D76/00
Filed: 1931-07-10
Abstract: 375,567. Hay bogies; vehicle draught appliances. PROCTOR, A., The Haugh, Blairgowrie, Perthshire. July 10, 1931, Nos. 19909 and 33575. [Classes 108 (i) and 108 (ii).] A hay bogey. comprises two parallel cross bars A, B carrying a number of long tines C .. H and draught means for horse or tractor whereby the bogey can be backed to cause the tines to enter beneath the assembled crop. The tines are of varied length, the longest being towards the centre and the tines are disposed in an inclined direction. The bogey is mounted on a pair of wheels J, K adjustable vertically with respect to the bogey. Draught shafts for a horse are adapted to be entered into brackets a<1>, a<2> while for a tractor a pivoted member . Q having an integral segment is pivoted to the draught pole P at p<1> so that during traction the coupling is free to swivel but during backing it is made rigid by means of a pin entered in one of the holes t2, t<3>. A modification is shown in Fig. 3 showing the coupling free to swivel by means of the spherical head Y and cup W but during backing held rigidly by means of a squared end of shaft X entering the squared part p<3> of the shaft pole P. A pair of rear doors or gates R are provided pivoted by pins r<2> in apertures r<1> and adapted to be engaged together by pin r<3>. Extra tines may be provided when the bogey is used as a hay or grass sweep.. Specifications 312,102 and 337,827, [both in Class 6 (iii), Harvesting- appliances], are referred to.
Patent GB-750609-A (GB)
Title: Process for the preparation of organic sulphates
IPC: C07C303/24
Filed: 1952-08-07
Abstract: Sulphate ester salts having the general formula R1R2R3.C-O-SO3Me, wherein the R' may be the same or different alkyl, aralkyl, aryl, cycloalkyl or cycloalkyl-alkyl groups, which may contain substituents such as hydroxyl, carboxyl or ester groups, or one or two of the R's may instead be hydrogen atoms, and Me represents an alkali metal, are prepared by reacting the corresponding hydroperoxides R1R2R3.C-OOH with alkali bisulphite in aqueous solution, using less than one mol. of bisulphite per mol. of hydroperoxide whereby the product formed consists predominantly of the desired organic acid sulphate salt.  A small amount of sulphonic acid of the formula R1R2R3.C-SO3H, the R's being as defined above, is formed as by-product and may be separated from the main product, if desired.  The hydroperoxide is preferably reacted in solution in a hydrocarbon or in the corresponding non-peroxidized starting material.  The hydroperoxides employed are preferably derived from petroleum fractions in the C10-C35 range, fatty acids and vegetable oils having an iodine value below 150 such as olive oil; these hydroperoxides yield surface-active acid sulphate salts.  The hydroperoxides may be prepared by passing oxygen or air through the hydrocarbon, e.g. a petroleum fraction B.R. 150-450 DEG C., or other starting material at elevated temperature and, if desired, in the presence of metallic soaps, e.g. the stearates or naphthenates of alkali, alkaline-earth or polyvalent metals, as accelerators.  In an example, a petroleum fraction B.R. 250-300 DEG C. free from reactive sulphur compounds and having an aromatic content of below 10 per cent is partially peroxidized with finely-divided air at 100-105 DEG  C. and is then reacted with 0.5-0.7 mols. sodium bisulphite in aqueous solution per mol. of hydroperoxide, with cooling to maintain a temperature not above 30-35 DEG  C.  The mixture is then settled, and there form a bottom aqueous layer, a median layer of ester-sulphate salts containing by-product sulphonate and hydrocarbons and a top layer of hydrocarbons which can be used again in the process.  The sulphate salt layer is washed with benzene or light naphtha and then stripped of solvent, yielding a mixture of ester-sulphate salts (80 per cent) and sulphonates. Specifications 695,547 and 728,504 are referred to.
Patent GB-443334-A (GB)
Title: Improvements in or relating to insulating material
IPC: C04B28/02
Filed: 1935-07-12
Abstract: A sound- and heat-insulating composition consists of cement, granulated cork which has been expanded by being heated until the resin in the cork exudes to the surface, water, and barium, strontium or calcium chloride.  This composition may be spread on a concrete floor and, after hardening, covered with a layer of cement mortar, gypsum, or xylolit.
Patent GB-858398-A (GB)
Title: Improvements relating to adjustable wrenches
IPC: B25B13/18
Filed: 1959-06-11
Abstract: 858,398. Wrenches. AEGERTER, A. S. June 11, 1959, No. 20043 /59. Class 61. An adjustable wrench is provided with quickadjusting means comprising a slide 27, Fig. 1, moveable longitudinally of the handle 201 by at least one cam 29, 3C and interengaged with the slidable jaw 4 through a groove and projection 27<SP>1</SP>, 27<SP>11</SP> The cams 29, 30 are rotated by a disc 32 projecting from the handle and the jaw may be locked in the adjusted position by a thumb screw 25<SP>11</SP>. In a modifi cation the cam 30 may be replaced by a returr spring and the cam 29 is rotated through a rack and pinion device, the rack being slidable longitudinally of the handle.
Patent GB-205865-A (GB)
Title: Improvements in the manufacture of fuel briquettes
IPC: C10L5/10
Filed: 1922-07-21
Abstract: 205,865. Ormandy, W. R., and Board, A. V. July 21, 1922. Composition fuel.-A binder for anthracite, lignite, or other fuel dust comprises Cassava starch piepared by a dry milling process together with at least an equal amount of pitch, bitumen, resin &c. A small quantity of sodium sulphate, chloride, orcarbonate or like salt or mixture of salts mav be added to improve the hardness and quality of the briquette, and copper sulphate amounting to about ¢ per cent of the starch used is preferably added during the milling to prevent mould growth. In an example, 100 parts by weight of duff are intimately mixed in the cold with 2 to 3 parts of Cassava starch, at least an equal amount of finely powdered pitch and .3 to .4 per cent of anhydrous sodium sulphate, calculated on the weight of the anthracite. Steam is blown into the mixture to ccok the starch and soften the pitch, and the hot mass is then briquetted.
Patent GB-135960-A (GB)
Title: Improved Machine for Grinding Cylindrical Lenses.
Inventor: WOLINSKI BENZION
IPC: B24B13/02
Filed: 1918-12-09
Abstract: 135,960. Wolinski, B. Dec. 9, 1918. Lenses, grinding and polishing.-A machine for grinding and polishing cylindrical lenses comprises two spindles j, k driven at the same speed and in the same direction through gearing p, q, r from a shaft s, and having similarly-placed crank-pins g, h at their lower ends adapted to.engage freely in recesses e, f in a member a. This member, which may be either the tool or the work, has a cylindrical surface adapted to engage the corresponding surface of the fixed member d, which may be the work or the tool: the member a is thus moved bodily round in relation to the member d.
Patent GB-739794-A (GB)
Title: Improvements in anti-mist centrifugal screens
IPC: B63B19/00
Filed: 1954-07-13
Abstract: 739,794. Windows.  SPEICH, C. July 13, 1954, No. 20428/54. Class 20 (3).  An anti-misting centrifugal screen comprises a fixed transparent plate 2, an electric motor 1 mounted in an aperture in the plate, and a transparent disc 5 carried by the motor shaft outwardly of the plate 2. The disc 5 carries a rim 8 forming with a ring 9 on the outside of the plate 2 a tortuous passage leading into the space S. An electric heater 22 may be positioned in this space and vanes within this space are formed on the bell-like member 4 by which, in conjunction with a flange 204 and cap 6, the disc 5 is secured to the motor shaft.
Patent GB-387594-A (GB)
Title: Improvements in belts for personal wear
IPC: A41F9/00
Filed: 1932-09-22
Abstract: 387,594. Belts for personal wear. TULLETT, H., 10, Brownhill Road, Catford, London. Sept. 22, 1932, No. 20437. [Class 141.] A belt 1 for motor cyclists comprises a pair of hand grips 3 permanently secured in position by means of securing tabs 4 formed therewith, the hand grips, which are disposed transversely of the belt, i.e. vertically in normal use, projecting at right-angles to the belt's exterior face. Specification 26378/13, [Class 141, Wearing-apparel], is referred to.
Patent GB-962184-A (GB)
Title: Hinges for gates
IPC: E06B11/04
Filed: 1962-05-29
Abstract: 962,184. Hinges. A. H. QUICK, and R. C. WARNER, [trading as WALSALL GAUGE & TOOL CO.]. May 28, 1963 [May 29, 1962], No. 20530/62. Addition to 892,299. Heading E2F. A hinge as claimed in the parent Specification includes a separate member 28 adapted to be disposed between the strap 21 and the fixing plate 20 and having upper and lower flanges 281 recessed at 282 so that the member and the strap apply pressure around the complete periphery of the style or post to which they are attached, the flanges overlying at least one end of the portion of the strap embracing the style or post. The member may be provided with a slot for the passage of the abutment piece 206 and neck 205 of the strap or may, as shown, terminate short of the neck.
Patent GB-358490-A (GB)
Title: Improvements in and relating to the manufacture of railway and like sleepers
IPC: B21K9/00
Filed: 1930-07-07
Abstract: 358,490. Stamping railway sleepers. EBBW VALE STEEL, IRON & COAL CO., Ltd. and HARVEY, A. H., 5, Bad. minton Grove, both in Ebbw Vale, Monmouthshire. July 7, 1930, No. 20539. [Classes 83 (ii) and 83 (iv).] Corrugating.-A metal railway sleeper and chairs combined, Fig. 63 and as in Specification 341,965, [Group XXX], is gradually pressed from a flat or slightly arched section, Fig. 1, the pressing operations comprising (1) waving as in Fig. 2 in which the metal is gathered from the length of the bar, (2) corrugating as in Fig. 3 in which the sleeper is further shortened to provide metal for the outside of the chair, the inner chair sides being formed from the middle waves of metal, (3) roughing the shape of the chair as in Fig. 4, (4) forming the chairs as in Fig. 5 and (5) indenting the chair sides to suit bull-headed rails as in Fig. 6 if desired. The first waving is done in a hydraulic press, Fig. 12, in which a staggered series of dies k are adjusted by their flanges on the ram and press bed to give the required waves and side and end stops o are provided for locating the plate. The corrugating dies may be in halves bolted together and then secured by their flanges and bolts in a similar press. Shims may be placed between the bolted halves for fine spacing and gauging stops are provided. These dies have clearances to allow the metal to be drawn from the waves and so avoid thinning. In roughing the chairs &c. the top dies are bolted in halves with shims as before, and the lower dies are in 5 parts, so that the middle and two ends may be used again for the finishing operation and clearances are provided to allow of gathering the metal as before. The nosing dies for indenting the chair side to suit bull-head rails secured by wood blocks are shown in Fig. 55, in which pairs of pivoted dies 7 bear on the chair sides one die having a projection to form the indent and a mandrel 8 located inside the chair. The indenting die 7 has a slotted hole located over a pivot but the stress is taken by end abutments 14, Fig. 55, with packing shims 17. The mandrels 8 are then pushed out sideways from their chairs by auxiliary rams 21, Fig. 53.