baber/WOPTO huggingface dataset:
Patent GB-1492902-A (GB)
Title: Apparatus for the preparation of semiconductor compounds
IPC: G01K1/14
Filed: 1975-03-17
Abstract: 1492902 Marking semi-conductors SIEMENS AG 17 March 1975 [27 March 1974] 11089/75 Heading ClA [Also in Division Bl] Apparatus for use in the preparation of a semiconductor compound, e.g. gallium phosphide, comprises a closed heating vessel 2, for containing component elements of the compound, with heating means 20 to bring about formation of the compound from the elements, the heating vessel having a re-entrant wall portion 24 for a temperature sensor 28 for providing a measure of the temperature of the material in the vessel (see Division Bl).
Patent GB-323438-A (GB)
Title: Improvements in building motions for spinning and analogous machines
IPC: D01H1/36
Filed: 1929-04-10
Abstract: 323,438. Smith, W. Prince-, and Waterhouse, D. April 10, 1929. Building-motions. - In spinning or like machines provided with a Scaife building-motion, means are provided whereby an increased traverse may be obtained without lengthening the levers and, consequently, the height of the machine. The chain rod H is detachably connected to the rod end iron G, and between an extension of the rod end iron and the chain rod a multiplying mechanism is arranged so that either a normal or increased traverse may be obtained. As shown, a bar P is bolted to the rod end iron and a chain R attached thereto is connected to the smaller of integral pulleys S, U. the chain rod being detachably connected to the larger pulley by a chain X.
Patent GB-274951-A (GB)
Title: Improvements in or relating to spoons
IPC: A47G21/04
Filed: 1926-04-28
Abstract: 274,951. Dancy, A. J. April 28, 1926. Hand domestic appliances.-A. spoon suitable for stirring, cleaning out utensils, &c., resembles an ordinary spoon except that its bowl 2 is truncated by the removal of the small end of the bowl along a line 3 oblique to the longitudinal axis of the spoon. The truncation is best defined by assuming that the bowl is lowered into still water for. say, one third of the length of its major axis with the handle vertical, and then, without further immersion of the centre line of the bowl, the handle is inclined towards the observer for thirty degrees and simultaneously to the right for thirty degrees. The portion now immersed is that absent from the bowl of the spoon. The angles where the line 3 meets the sides 4, 5 are rounded off and the bowl is deeper near the side 4 than at the side 5, which may form a cutting edge for chopping vegetables. Specification 12801/08 is referred to.
Patent GB-1094782-A (GB)
Title: Preparation of dimethyl disulfide
IPC: C07C321/14
Filed: 1965-03-16
Abstract: Dimethyl disulphide is prepared by reacting dimethyl trisulphide with methyl mercaptan in the presence of a basic catalyst and heating the reaction mixture, e.g. to 80-110 DEG  C. to drive off the H2S formed. The catalyst may be an alkali metal hydroxide, and alkaline earth metal oxide or an aliphatic amine; dimethylamine, trimethylamine, and triethylamine being preferred.  Amine catalysts may be activated by the addition of H2S.  The reaction may be carried out continuously in a process in which the dimethyl trisulphide is prepared in situ by sulphurizing dimethyl disulphide obtained by recycling a portion of the product.
Patent GB-728334-A (GB)
Title: Improvements in hot gas engines and refrigerating engines or heat pumps operating onthe reversed hot gas engine cycle
IPC: F02G1/044
Filed: 1953-04-23
Abstract: 728,334. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 23, 1953 [April 26, 1952], No. 11214/53. Class 7(1). [Also in Group XIII] In a hot gas engine as claimed in claim 1 of Specification 708,199 (referred to) the cylinders and the regenerators and coolers, the latter forming independent units, are arranged substantially in the form of an annulus, each cylinder being situated between two regenerator and cooler units one of which is associated with the hot space in this cylinder through a heater comprising a plurality of juxtaposed elements grouped together. In Fig. 1 the cylinder 2 is shown in section and encloses a piston 13. Also shown in section are the regenerator 15 and cooler 16 in the casing 6. The space 14 above the piston 13 is connected through the heater pipes 10 to the regenerator 15 and the cooler 16 is connected through a passage 17 to the space below the piston in the cylinder 3. The space 18 below the piston 13 is connected through a passage 19 with the regenerator in the casing 5 associated with the heater pipes 9. Other cylinders are indicated at 1 and 4 and other regenerators and coolers are enclosed in the casings 7 and 8. The pistons operate either a swash plate or a crankshaft. Baffle plates 22 are fitted in association with the heater pipes. Gases from a burner 21 leave through apertures 24. The Specification refers to use of flame guides internally and/or externally of groups of pipes.
Patent GB-183233-A (GB)
Title: Improvements in or connected with electric lamps particularly adapted to be carried or supported on the person
IPC: F21L14/00
Filed: 1921-04-18
Abstract: 183,233. Oldham, G., and Oldham, J. April 18, 1921. Head and like lamps, personal.-In lamps intended to be, carried upon the person in which the contacts are carried by the reflector and can be withdrawn with this from the lamp as a unit, the conductors pass through an elbow-piece or tubular extension on the lamp-body. In the construction shown in Fig. 1, a metal holder 22 for a screw-cap bulb is clamped by a nut 23 to, but is insulated from, a boss on the reflector 13. A cap 29 containing the spring-pressed centre contact for the bulb is clamped by a nut 34 upon, but is insulated from the holder 22. The leads 27 are connected directly to the cap 29 and the holder 22. In the construction shown in Fig. 6, an insulating-block 36 is screwed to the reflector 13, and a metal bulb-holder 20 is screwed to the block 36, so that the whole can be withdrawn as a unit from the lamp casing. A spring finger 31<a> aided by a spring 30<a> serves as a contact for the centre contact of the bulb, and an insulating cover 35 for the bulb is provided. The leads are connected directly to the finger 31a and to the bulb-holder. The elbow or tubular extension 42 in which the cable 26 is anchored is made flush with the top of the casing to avoid projections liable to foul colliery roofs &c. Wedges 44, which may have serrated faces, are forced into a hollow block 45, separate from the lamp casing, by means of a screw plug 43 and serve to anchor the cable to the block 45, which is made non-circular to prevent rotation of the cable. Similar means may be used to secure the cable to the battery casing. A metal coil 49 protects the cable. Either a hook 51, Fig. 1, or a loop 50, Fig. 6, is fitted to the lamp casing for its attachment to the hat or clothing.
Patent GB-681891-A (GB)
Title: Improvements in discharge valves for pressure-tight containers
IPC: B65D83/14
Filed: 1951-05-15
Abstract: 681,891. Valves. CONNECTICUT CHEMICAL RESEARCH CORPORATION. May 15, 1951 [May 13, 1950], No. 11317/51. Class 135. A discharge valve for a pressure fluid container 10 comprises a body 14 overlaying an opening 13 in the container end wall 11, and having a part 15 and an integral flange 33 extending through the opening into the container, the flange being bent over to secure the body to the container. A washer 32 prevents leakage through opening 13. A closure member 18 is urged by a spring 21 to engage a seat 17 in a bore 16 in the body and is unseated by depressing a diaphragm 28 which engages the member through a rod 24, slidable with clearance in a bore 16a. A chamber 25 beneath the diaphragm has an outlet nozzle 27 in its wall and forms an expansion chamber for atomising the fluid from the container. A flange 29 integral with the body is bent over to secure and seal the diaphragm thereto.
Patent GB-808629-A (GB)
Title: Photographic material
IPC: G03C1/93
Filed: 1956-04-13
Abstract: A polycarbonate resin contains securing units of the formula <FORM:0808629/IV (a)/1> wherein each R1 (which may be the same or different) represents an hydrogen atom, an alkyl group of up to 5 carbon atoms or a cycloalkyl or aryl group, n is an integer greater than 20 and X is the group <FORM:0808629/IV (a)/2> or a cycloalkyl group (including decahydronaphthalene), where R1 and R2 are hydrogen atoms, alkyl groups of up to 10 carbon atoms, cycloalkyl groups, aralkyl or alkaryl groups with up to 4 carbon atoms in the side chain, or phenyl or furyl groups. The polycarbonates are derived from one or more di-(monohydroxaryl)-alkanes (many examples are given), and these may be mixed with other dihydroxy compounds such as ethylene or polyethylene glycols, specified alkane diols, xylylene glycols, cyclohexane diols, 2:2 - (4:41 - dihydroxy - dicyclohexyl)-propane, 2:6-dihydroxydecahydronaphthalene, hydroquinone, resorcinol, pyrocatechol, dihydroxydiphenyls, dihydroxynaphthalenes, dihydroxyanthracene, 2:21 - dihydroxydinaphthyl or the hydroxybenzyl alcohols.  The ends of the polycarbonate chains may be terminated by the residues of phenols such as t-butylphenol, cyclohexyl-phenol or 2:2-(4-hydroxyphenyl - 41 - methoxyphenyl) - propane or by amines such as aniline or methylaniline.  In Example 2, a polycarbonate film is treated on one side with a solution comprising a mixed acetal of polyvinyl alcohol, benzaldehyde and the sodium salt of benzaldehyde-2; 4-disulphonic acid, a partially saponified vinyl chloride/vinyl acetate copolymer, methanol, dimethyl formamide and methylene chloride.  In Example 7, a polycarbonate film is treated on one side with a solution comprising a partially saponified vinyl chloride/vinyl acetate copolymer, gelatine, ethylene chlorohydrin, phthalic anhydride, acetone, glyoxal, methylene chloride, methanol and tetrachloroethane. Specifications 772,627, 808,485 and German Specification 958,715 is referred to.
Patent GB-805161-A (GB)
Title: Improvements in or relating to woodworking tools
IPC: B23D57/00
Filed: 1956-04-14
Abstract: 805,161. Tenoning. WRIGGLESWORTH, S. April 15, 1957 [April 14, 1956], No. 11419/56 Class 145. A tenon forming device for use with a circular saw 14 comprises a setting member 19 and a guide member 20 adapted to be mounted adjacent to the saw with the member disposed between the setting member and the saw and movable towards and away from it whilst being maintained parallel with it, the spacing between the saw and the member being determined by interposing a setting piece between the setting and guide members. The members 19, 20 are connected by a pair of parallel links 21 pivoted on a base plate 23 which is adjustably mounted on a bar 25 fixed to one end of a work table 15. The table 15 is carried by a pillar 17 adjustably mounted on a rod 13 projecting from a support 12 on which an electric drill 10 mounting the saw 14 is carried. When making the tenon, the guide member 20 is first set by interposing a setting piece, such as the drill bit 32 used for forming the corresponding mortice, between the members 19, 20 so as to displace the guide member 20 a distance from its normal spring- retracted position equal to half the diameter of the drill. The workpiece is then positioned with the centre line of the tenon to be cut aligned with the saw and the guide 20 brought into contact with the workpiece by adjusting the base plate 23 along the bar 25 ; the drill 32 is then removed, allowing the guide 20 to return to its retracted position and the saw is used to cut one side of the tenon while the workpiece is held against the guide. The second side of the tenon is cut by inserting the drill between the guide 20 and a suitably-positioned stop 27, as shown in Fig. 2, so that the guide is then displaced the full width of the tenon. The shoulders of the tenon may be formed by moving the workpiece over a plate 35 which is pivoted on the bar 25 and can be clamped in the correct position relative to the saw. To facilitate the marking of a centre-line on the workpiece, the members 19, 20 are rebated to receive the workpiece and a scriber 43 is mounted on the base plate 23. A tailstock 41 may be fitted on the cutter end of the rod 13 to carry a centre 42 for supporting the outer end of the saw spindle. The device is intended to be used as a complement to the morticing attachment described in Specification 805,162.
Patent GB-219412-A (GB)
Title: Improvements in or relating to typewriting machines
IPC: B41J29/18
Filed: 1923-04-27
Abstract: 219,412. Laguionie, J. April 27, 1923. Copy-holders.-To facilitate copying, a typewriter is provided with a hollow, transparent or translucent platen A containing illuminating means, such as electric lamps 2, or illuminated from the rear, the original sheet and the sheet for receiving the copy being superposed on the platen. The platen may be provided with a sheath A<1> of rubber, celluloid, or the like. When it is required to produce a number of copies, the original sheet. is placed on an auxiliary opaque or transparent roller, and the copy sheets and interleaved carbons are placed on the platen. The auxiliary roller B, Fig. 4, is mounted in a frame 8 on the carriage C, and is driven from the platen A by means of a belt 9. The auxiliary roller can be turned independently by means of a knob 11. A feed-roller 12 co-operating with the auxiliary roller, is carried by spring-urged levers 13 which can be rocked by means of a releasing- lever 14. The original sheet passes over guides 8<1>, 16, the space between the platen and auxiliary roller enabling a large surface to be displayed. The original sheet may be read by light transmitted from a lamp 19.
Patent GB-308497-A (GB)
Title: Improvements in cases for electric condensers and other electrical components
IPC: H01G4/236
Filed: 1928-04-18
Abstract: 308,497. Sterling Telephone & Electric Co., Ltd., and Miles, R. E. April 18,1928. Condensers.-A box or casing, particularly for electric condensers and other components requiring external terminals, such as resistances, is built of an insulating strip forming three sides and of metal plates having in curved edges confining the edges of the strip and having tongues entering the strip at right angles to secure the plates in position. Figs 1 and 2 show in median sections at right angles a casing for a condenser 11 embedded in insulators 12'. The insulating strip 1 is bent twice at right angles to form three sides of the casing (Fig. 1), and is slotted at 2 (Fig. 2) to receive inturned tongues 5, which are formed on two of three inturned edges 4 of two metal plates 3 forming two other sides, and which hold those plates in position on the edges of the strip 1. A third metal plate 6, in this case forming the base, is formed longer than the width of the plates 3, so as to receive fixing holes, and has two opposite upturned edges 7 secured to the bottom of the plates 3 as by soldering. Insulating levers 8 for the plates 3 serve also to support the edges of the strip 1 against crushing, and a similar liner 9 may be provided for the plate 6. The plates 3 may be stamped from sheet steel and may be used with strips 1 and plates 6 of various thicknesses to provide different sizes of casings. The part of the casing shown as the top may be curved, with no defined edges between it and the other sides of the strip. The Provisional Specification also states that the strip and liners may be of impregnated millboard.
Patent GB-693820-A (GB)
Title: Improvements in and relating to apparatus for use in the manufacture of frozen sweetmeats
IPC: A23G9/22
Filed: 1952-05-07
Abstract: 693,820. Stackabletrays. BROOKS. E., and BROOKS, E. July 8, 1952 [May 7, 1952], No. 11499/52. Classes 52(iii) and 128 [Also in Groups XIII and XVII] Stackable wire-work trays for supporting the moulds used in the manufacture of frozen sweetments have U-shaped legs 4 at each corner, the base of each leg being angular as shown at 4a and the upright members of the legs being joined by tie bars cranked at 7a to accommodate the handles 6 of the tray below. Each tray comprises a wire frame 3 to which the legs 4 and handles 6 are secured, and diagonal cross wires 5 or rings to support the flanges of the moulds.
Patent GB-1471054-A (GB)
Title: Stretched-wrapped package process and apparatus
IPC: B65B11/58
Filed: 1974-03-14
Abstract: 1471054 Bundling articles in stretched wrappers LANTECH Inc 14 March 1974 [4 April 1973] 11532/74 Heading B8C A stretched wrapper is applied around a load by applying a first length under substantially no tension, applying a further length under tension, and securing the wrapper thus formed in place. Apparatus for carrying out this operation comprises a platform 22 upon which a palleted load 12 to be wrapped is located, the platform being rotated about its central axis by a motor 26 carried by a base 25, and a roll 15 of sheet material, for example polythene, from which wrapping material is drawn on to the load by rotation of the platform. The roll is vertically supported upon a shaft 27 provided at its base with a brake drum 30. Located within the drum is a brake shoe 31 mounted upon a lever 32 and the lever is biased away from the drum by a spring 33 against the action of an adjustable spring 36 which acts through a first wire 38, a pivoted operating arm 35, and a brake cable 34. The spring 36 is adjusted to be stronger than spring 33 to cause the brake shoe to be normally urged on to the brake drum. A pivoted lever 40 is provided to engage the operating arm 35 against the action of spring 36 to enable the brake shoe to be pulled away from the brake drum by the spring 33. A guide roller 41 is freely rotatably mounted upon the free end of the arm 35 and guides the wrapping material from the roll 15 on to the load to be wrapped. In operation, the leading end of the wrapping material is secured to the load and lever 40 actuated to a position (see Fig. 4) in which the brake shoe is clear of the drum. Motor 26 is then started to rotate platform 22 to draw a first length of untensioned material from the roll on to the load. After sufficient material has been applied, lever 40 is withdrawn to allow the brake shoe to be biased by spring 36 into contact with the drum thus stopping rotation of the roll. As rotation of the load continues, the length of material between the roll and the load is stretched and applied to the load, the tension and thus the pull of the material gradually increasing during this time. Eventually a point is reached where the action of spring 36 is overcome by the combined action of spring 33 and the pull of the material on roller 41 and thus an arm 35 and the pressure of the brake shoe on the drum is diminished to allow a braked rotation of the roll 15. At this point the pull on the material begins to diminish because of rotation of the roll and a final equilibrium condition is reached when the pull on the material equals the frictional resistance of the brake, this in turn being determined by the action of springs 33 and 36 and the pull of the material on arm 35. When sufficient material has been wrapped around the load, rotation of the load is stopped, the material cut and the free end thus formed welded, bonded, or even stapled to the underlying material. A plastics cover 43 may be applied to the top surface of the load.
Patent GB-352109-A (GB)
Title: Improvements in or relating to the electrolytic purification of aqueous solutions
IPC: B01D61/42
Filed: 1930-04-11
Abstract: 352,109. Electrolysis. BILLITER, J., 12, Reithlegasse, Vienna. April 11, 1930, No. 11563. Convention date, April 12. Drawings to Specification. [Class 41.] In the purification of water or other liquids by electrolytic removal of dissolved salts, electroosmotic flow through the diaphragms is prevented as far as possible by the use of a mean potential difference of less than 20 volts, preferably 6-18 volts, per liquid compartment. Permeable diaphragms of low membrane potential are employed, and charging of these by the current is neutralized by maintaining a higher hydrostatic pressure in the centre chamber than in the electrode chambers, thus producing a flow of liquid towards the electrodes. The liquid may be passed in parallel streams through a number of cells electrically connected in series. Bipolar electrodes may be employed. Specifications 14195/03, 11823/14 and 211,562, [all in Class 41, Electrolysis], are referred to.
Patent GB-635716-A (GB)
Title: Improvements in or relating to electric explosion initiators
IPC: F42B3/103
Filed: 1947-04-30
Abstract: 635,716. Blasting-devices. ATLAS POWDER CO. April 30, 1947, No. 11569. Convention date, May 10, 1946. [Class 9 (i)] [Also in Group XXXVI] A neoprene plug 11, .255 inch in diameter, and leg wires 31, 33 of an initiating device for a detonator are assembled by placing the plug on hollow needles 17, 19 so that the points of the needles enter bores 13, 15, diameter .022 inch, and forcing the plug down until it reaches a support 25 from which pins 27, 29 extend into the needles. The support is then removed and leg wires 31, 33 having insulation 35, 37, inserted into the needles. The needles having indented gripping portions 39, 41 are then pulled out of the plug to allow it to contract on to the leg wires. A match-head 55, Fig. 5, is soldered to the leg wires and the whole assembly inserted in a metal shell containing a base charge 49, primary charge 51 and flash charge 53. The shell 43 is then crimped to the plug 11. The needles have external and internal diameters of .072 inch and 0.054 inch, respectively. The leg wires are .025 inch in diameter and when covered by insulation are .049 inch in diameter. Alternative materials for the plug and insulation are given. The plug assembly is stated to be water-proof under 250 lbs. per sq. inch water pressure for 16 hours at 125 F., and under 50 lbs. per sq. inch for 4 hours at 32 F. The wires may be dipped in sealing material before insertion in the plugs to seal the joint between the insulation and the wire. The plug material may be extruded and cut to the desired length after the needles have been partially inserted.
Patent GB-934828-A (GB)
Title: Improvements relating to motor scythes and mowing harvesting and like machines
Inventor: CAUDWELL PHILIP GORDON
IPC: A01D34/17
Filed: 1961-03-29
Abstract: 934,828. Mowing machines. J. ALLEN & SONS (OXFORD) Ltd. March 29, 1962 [March 29, 1961], No. 11596/61. Class 6(3). [Also in Group XXII] A pressure-pad for maintaining contact between the reciprocating and fixed blades of a mowing machine is made from sheet metal and has two strips 5 bent downwardly from the plane of the pad to form a fulcrum about which the pad may be rocked by an adjusting screw passing through hole 11 to alter the pressure exerted. The tips of the strips are arranged to lie in the plane of a cranked foot 7 which bears against the blades. A fixing bolt 10 is provided. Both the cranked foot 7 and the bent strips 5 are formed in a single stamping or pressing operation. Specification 709,232 is referred to.
Patent GB-287345-A (GB)
Title: Improvements in or relating to warp dressing and beaming machines
IPC: D02H13/00
Filed: 1927-04-30
Abstract: 287,345. Sucker, A. April 30, 1927. Tensioning yarns in warp form. - In a warp dressing, drying and beaming machine, the yarns after being dried by air pass over a roller @e thence over and under two or more floating rollers a, a<1> and on to the beaming mechanism. The bearings b of the rollers a, a<1> are controlled by springs or weights and are slidable in guides d, so that when the tension increases, as when the machine is stopped, the rollers a, a<1> move to shorten the yarn path. Means may be provided for putting the floating rollers out of action. Each roller is by its spring or weight urged in a contrary direction to the preceding roller.