baber/WOPTO huggingface dataset:
Patent GB-348518-A (GB)
Title: Improvements in mechanically actuated reciprocating tools
IPC: B25D11/12
Filed: 1930-02-04
Abstract: 348,518. Percussive tools. VIDAL, C. H., Heathcote, Marsham Way, Gerrards Cross, Buckinghamshire. Feb. 4, 1930, No. 3754. [Class 124.] A power storage system for mechanical hammers includes a yielding toggle adapted to resist retraction of the tup member and give way under a predetermined pressure to let the tup advance freely. Fig. 1 shows a portable hammer comprising a continuously rotating worm W<1> driving a worm wheel W pivoted in the tup D and having its rotation retarded by a toggle system comprising a spring S<1> carried in the tup and acting on the connecting rod C<3>. This retardation causes the tup and wheel W to move to the right, simultaneously compressing the mainspring S and toggle-spring S<1>, until the wheel W has turned through 180‹ from the position shown. The springs then act together to assist rotation of the wheel W and force the tup to the left. A buffer spring S<2> absorbs excess energy. In a modification the toggle-spring is housed in a separate part of the casing, the worm wheel W rotates about a fixed axis, and the worm W<1> carries the tup and reciprocates on a splined driving shaft against the action of the mainspring. Means are also provided for varying compression of the togglespring and hence the length of stroke of the tup. As applied to a forging hammer, Fig. 3, the wheel W rotates about a fixed pivot and the continuously rotating worm W<1> reciprocates with the tup D under the action of the mainspring S. Compression of the toggle-spring S<1> may be varied by means of the hand-lever H<3> and gearing H<1>, H<2>. Fig. 4 shows a further modification in which a continuously rotating spur-wheel W<1> drives a wheel W, pivoted on a swinging frame D<0> carrying the tup D, against the action of the toggle-spring S<1> and mainspring S. When the wheel W has turned through 180‹ from the position shown, both springs act together to bring the tup back against the tool holder T.
Patent GB-1176692-A (GB)
Title: Continuous Processes for the production of Ethylene Polymers and Catalysts suitable therefor
Inventor: MANYIK ROBERT MICHAEL
IPC: C07F5/06
Filed: 1967-01-25
Abstract: 1,176,692. Polymerisation catalysts. UNION CARBIDE CORP. 25 Jan., 1967, No. 3812/67. Heading B1E. [Also in Division C3] A catalyst complex is formed by a process comprising:-(1) introducing a first stream of a dry, inert, liquid hydrocarbon solvent to a first contact zone containing water to wet said first stream; (2) introducing the watercontaining first stream and a second stream which is a solution of a (C 1-12 ) hydrocarbyl aluminium compound in a dry, inert, liquid hydrocarbon solvent to a second reaction zone, wherein the hydrocarbyl aluminium compound and water react to form a solution of poly (hydrocarbyl aluminium oxide) in the hydrocarbon solvent, and (3) after aging said solution, adding thereto a Group IVA, VA or VIA transition metal compound to complete the formation of the catalyst complex. A flow diagram of the process is provided. Exemplified catalysts are mixtures of poly (isobutyl aluminium oxide) and chromic 2-ethylhexanoate or chromium acetylacetonate.
Patent GB-162816-A (GB)
Title: Improvements in and relating to doors for safes or the like
IPC: E05G1/024
Filed: 1920-02-09
Abstract: 162,816. Dick, R. H., and Wigginton, P. W. Feb. 9, 1920. Safes and strongrooms. - A safe door is constructed with front and rear sheet-metal casings 13, 14 each filled in with slabs of non-conducting material 22, and spaced apart to enclose a dead air chamber 23 which interrupts all lines of metallic heat-conduction from the exterior to the interior. The two members are held together by catches 17, which will break apart if the door is subjected to a. shock such as falling The joint 19 is made so that projections from the door fit into corresponding recesses in the jamb in order to obstruct the conduction of heat at the hinged edge.
Patent GB-385131-A (GB)
Title: Machine for the shaping and smoothing of soles
IPC: A43D35/00
Filed: 1932-02-10
Abstract: 385,131. Boot - making machines. SCHON ET CIE AKT.-GES., Pirmasens, Germany. Feb. 10, 1932, No. 3964. Convention date, Sept. 30, 1931. [Class 17 (i).] In a machine for shaping and smoothing soles, before or after attachment to shoes, wherein the sole is pressed, by hydraulic pressure, between fixed and movable dies, cylinders B, B<1> mounted in a frame A<1> are connected by pipes J, K to a change-over valve L, which is further connected, by pipes M, O respectively, to a pump N and a chamber P filled with oil or water. The valve L is so constructed that the pipes M, O can be connected to each other, or to the pipes J, K alternatively. Pistons C, C<1> arranged in the cylinders B, B<1> and slidable through packing E carry die-holding members R. Each of these comprises a die chuck S which is universally mounted on the member R by means of spherical surfaces and bolts U and slots. The chuck is held normally in a central position by a spring ring T, Fig. 3. The upper dies W, W<1> are removably held in the chucks by screws V. Lower dies Y, Y<1> are held similarly on posts X. The cylinders are connected at their lower ends by a passage G, so that one piston, as it descends, forces fluid into the other cylinder to raise the piston therein.
Patent GB-972845-A (GB)
Title: Improvements in or relating to magnetic data-stores
Inventor: BARNET PETER ALAN
IPC: G11C11/06
Filed: 1962-02-01
Abstract: 972,845. Magnetic storage apparatus. GENERAL ELECTRIC CO. Ltd. Feb. 1, 1963 [Feb. 1, 1962], No. 3968/62. Heading H3B. [Also in Division H1] The insulated coordinate conductors 1, 2 of a magnetic matrix store are bonded together by an epoxy resin and encircled by a magnetic storage unit at each of their crosspoints, each storage unit being formed by two similar ferromagnetic strip elements 3 united at their ends 4 by welding or by a magnetically-loaded bonding resin. The storage units are formed by positioning two sets of long ferromagnetic strips diagonally and on either side of the conductor matrix with one set coated at intervals with the loaded resin. The long strips are then united between each crossing point by pressing together. The strips may be left intact after curing of the resin or may be cut within the interstices of the array so as to form separate and distinct storage units. Each long strip has a preferred axis of magnetization along its length, and may comprise an 80% Ni, 12% and 8% Mo sintered alloy in which the preferred axis is produced by grain orientation during manufacture. Alternatively, the long strips may be an electrically deposited film of 95% Ni, 5% Fe alloy having its preferred axis produced by polarisation during the deposition process. The magnetically-loaded bonding resin comprises an epoxy resin adhesive loaded with an 82% Ni, 18% Fe powder or powdered mumetal, and is polarised during the uniting process of the magnetic strips by an extreme field applied vertically to the matrix plane. Alternatively, the loaded resin may be polarised by energizing the conductors 1 and 2 in either case the vertical polarisation forming a complete axis of preferred magnetisation around each pair of elements 3. The matrix can include additional sets of conductors. If a thin film is not self-supporting it may be deposited on a flexible non-magnetic tape of polyethylene terephthalate. Specification 972,846 is referred to.
Patent GB-162818-A (GB)
Title: An improved device or appliance for cutting soap and like substances
IPC: C11D13/22
Filed: 1920-02-10
Abstract: 162,818. Jones, C. A. Feb. 10, 1920. Butter and cheese cutters; cutting-apparatus.- Relates to devices for cutting soap and like substances, of the kind in which is employed a wire or like flexible cutting-element connected at one end to a lever and at the other to a spring-controlled arm pivoted to a fixed vertical pillar, and consists in attaching the controlling-spring at one end to the pillar adjacent to the pivot of the arm, and at the other end to any point of the arm between its pivot and the end carrying the cutting- tlement. In the form shown, the soap is placed on an inclined support 10 on a base plate 1 to which is pivoted a lever 2 carrying one end of a cutting-wire 6 the other end of which is attached to an arm 4 pivoted to a slotted upright 3 rigid with the base 1 and carrying a pair of guide strips 8. The arm is controlled by a spring 5 secured to the pillar 3 near the pivot of the arm. Movement of the lever 2 in the sense indicated by the arrow causes the wire to pass through the soap with an endlong sliding action. The arm 4 may be anchored to the upright 3 by depressing it until it is vertical and securing it by a stop-pin. A modification is described in which the lever 2 is pivoted to the base of the upright 3, and the arm 4 is L-shaped.
Patent GB-1272185-A (GB)
Title: A process for the catalytic detoxication of aqueous cyanide solution
IPC: C02F9/00
Filed: 1970-01-28
Abstract: 1,272,185. Treating cyanides. ZELLWEGER Ltd. 28 Jan., 1970 [12 Sept., 1969], No. 4043/70. Heading C1C. A column of active carbon loaded with a heavy metal compound is used to oxidize cyanide solutions using pure oxygen or oxygen enriched air.
Patent GB-585304-A (GB)
Title: Process for the extraction of oil from liver
IPC: C11B1/02
Filed: 1945-02-17
Abstract: In the solvent extraction of dried minced liver to remove the oil, the liver is preliminarily treated by heating it to a temperature sufficient to cause coagulation of the albuminoid matter therein before it is subjected to the drying process.  The latter and the solvent extraction are facilitated by thus inhibiting the "balling" of the small pieces of liver.  A temperature of 65 DEG -80 DEG C. is specified for whale liver generally and 65 DEG -75 DEG C. for blue whale liver.  The material is preferably stirred during the heating and sufficient water may be added to facilitate the stirring.  The heated liver, without loss of heat, is then subjected to drying under a vacuum such that the temperature of the liver is above the boiling point of water corresponding to the pressure in the drier.  The dried minced liver is then ready for solvent extraction, trichlorethylene being specified.  Before the heating step, an antioxidant may be added to the liver to prevent loss of vitamin A by oxidation.
Patent GB-158878-A (GB)
IPC: F16B39/12
Filed: 1921-02-03
Abstract: 158,878. Badois, L., and Kahn, D. Feb. 3, 1920, [Convention date]. Locking nuts and set screws.-The opposed faces of a nut 5 and check-nut 6 are provided with conical extensions 7, 8 adapted to be engaged by a ring 9 of soft steel &c. As the nut 6 is screwed down towards the nut 5, the ring 9 is expanded and, in the locking position, serves as a binder to prevent relative movement of the nuts. The extensions 7, 8 may be cylindrical with a chamfered portion to permit engagement with the ring. As applied to locking a set-screw, the part with which the screw engages is furnished with an extension to register with a corresponding extension on a check-nut.
Patent GB-418061-A (GB)
Title: Improvements in the manufacture and production of weed-killing preparations
IPC: A01N59/16
Filed: 1933-02-10
Abstract: A combined fertilizer and weed-killer, for use as a powder or in aqueous solution, consists of a water soluble salt of a heavy metal in admixture with ammonium chloride with or without other ingredients, the ammonium chloride constituting at least 20 per cent of the preparation.  Heavy metal salts are, for example, salts of copper, iron, nickel, cobalt, mercury, and zinc; but complex organic mercury compounds are excluded.  These salts may be the usual crystalline salts, or may be in a wholly or partly dehydrated condition.  Additional ingredients specified are kieselguhr, active carbon, finely ground brown coal, china clay, burnt gypsum, dried mud, ammonium sulphate, sodium nitrate, calcium carbonate, and vermin-destroying substances.  The ingredients may be admixed in the dry form, or aqueous solutions containing the mixed ingredients may be evaporated, or the salts may be prepared in admixture by chemical reaction.  Various examples are given in all of which either copper sulphate or ferrous sulphate forms one ingredient.  Specifications 8078/00, 12964/88, [both in Class 5], and 403,781 are referred to. According to the Provisional Specification heavy metal hydroxides or oxides may be used in place of, or in addition to, the heavy metal salts.ALSO:A combined fertilizer and weed-killing preparation, for use as a powder or in aqueous solution, consists of a water-soluble heavy metal salt in admixture with ammonium chloride and with or without other ingredients; the ammonium chloride constituting at least 20 per cent of the preparation.  Heavy metal salts are, for example, salts of copper, iron, nickel, cobalt, mercury and zinc; but complex organic mercury compounds are excluded.  These salts may be the usual crystalline salts or may be wholly or partly dehydrated. Additional ingredients specified are kieselguhr, active carbon, finely ground brown coal, china clay, burnt gypsum, dried mud, ammonium sulphate, calcium carbonate, sodium nitrate, and vermin destroying substances.  The ingredients may be admixed in the dry form, or aqueous solutions containing the mixed ingredients may be evaporated, or the salts may be prepared in admixture by chemical reaction.  Various examples are given in all of which either copper sulphate or ferrous sulphate forms one ingredient.  Specifications 12964/88 and 8078/00, [both in Class 5], and 403,781, [Group I], are referred to.  According to the Provisional Specification heavy metal hydroxides or oxides may be used instead of, or in addition to, the heavy metal salts.
Patent GB-1156413-A (GB)
Title: Electrophotographic Material
Inventor: OLSON JAMES ROGER
IPC: G03G5/05
Filed: 1966-08-04
Abstract: 1,156,413. Electrophotography. EASTMAN KODAK CO. 4 Aug., 1966 [4 Aug., 1965], No. 4132/69. Divided out of 1,156,412. Heading H1K. An electrophotographic material comprises a support carrying a layer of particulate photoconductor dispersed in a bisphenol of formula wherein X is a divalent single bond, a divalent single atom or a divalent organic radical, and R 1  and R 2  are radicals or hydrogen. In an embodiment 2,2 - bis - (4 - hydroxyphenyl) - pentane, ZnO, Bromophenol blue, and anhydro-3,3<SP>1</SP>-di- #-carboxyethyloxacarbocyanine hydroxide are suspended in acetone and coated on paper. Many other examples of bisphenols are given.
Patent GB-400473-A (GB)
Title: Improvements in or relating to electrical oscillation generators
IPC: H03B5/34
Filed: 1933-02-10
Abstract: 400,473. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Franklin, R. E. ; Rocky Point, Long Island, New York, U.S.A.) Feb. 10, 1933, No. 4144. Convention date, Feb. 10, 1932. [Classes 40 (iii) and 40 (v).] An oscillation generator comprises a parallel tuned circuit 18, 20 connected between two electrodes of a valve 2, a piezo-electric crystal 16 being connected between the coil 18 and condenser 20. Spurious oscillations due to the crystal acting as a simple dielectric are avoided, the crystal acting as a series-tuned circuit for the desired frequency and the grid-tuned circuit acting as a byepass for the spurious frequencies. The tuned circuit 18, 16, 20 is preferably connected between grid and cathode of the valve, and the feed-back coil 24 is reversed relative to coil 18 so that the circuit fails to oscillate without the crystal. An earthed screen 26 between the coils 24, 18 prevents capacitive coupling. In a modification, a screen grid valve is used and one plate of the crystal is earthed, Fig. 2 (not shown).
Patent GB-818999-A (GB)
Title: Improvements relating to electric lampholders
IPC: H01R33/46
Filed: 1957-02-07
Abstract: 818,999. Lamp caps and holders. NETTLE ACCESSORIES Ltd., and TAYLOR, G. Jan. 28, 1958 [Feb. 7, 1957], No. 4208/57. Class 38(1). A batten-type lamp holder comprises a body, fitted with terminals and lamp contacts, which is inserted in a back plate, turned to engage the back plate and held in position by a ring threaded on the body. The body 9 has at one end bayonet slots 10 for the lamp and at the other end two wings 13. The cylindrical part 3 of the base-plate has an internal flange 4 with two recesses to admit the wings 13 of the body. Two lugs 5 prevent the body 9 being inserted too far, the body 9 is turned clockwise until stopped by the rib 7 and is then drawn forward so that the small ribs 8 engage recesses 14 in the wings 13. The ring 15 is then screwed on to the body to lock it in position. Another ring 16 may be provided to retain a lampshade.
Patent GB-750203-A (GB)
Title: Striking tool
IPC: B25D11/06
Filed: 1954-02-12
Abstract: 750,203. Percussive drills. BRIGEL, J. Feb. 12, 1954 [April 10, 1953], No. 4262/54. Class 124 A striking tool for riveting, rock drilling, pile driving or demolishing having a hammer guided in a straight path and reciprocated by eccentric masses rotated by a motor is characterized in that a main working spring is stressed during the return stroke of the hammer and is then completely relaxed to push the hammer during the working stroke in such manner that, at the end of the working stroke, it passes through the region of the dead centre uninfluenced by the spring. The hammer comprising an upper splined guide rod 14 and a lower smooth guide rod 15 is rotatably connected to eccentric masses 13 rigidly mounted on a shaft 12 which is rotated by an electric motor 2 through gearing and vee-belt drives to a crank arm 11 rigidly mounted on the shaft. The upper guide rod 14 of the hammer works in a grooved bush 16 and the lower rod in a bush 17. A main spring 19 is inserted between the upper end of the bush 16 and a plate 18 on the guide rod 14 said plate being supported by a weaker auxiliary spring 20. Spring- loaded bolts 22 connect the holder 23 for the work tool 21 to the casing 24. The hammer may have a bore for supplying air or water to clear the drilled hole. Alternatively, the main spring may be supported by a stationary lug on the casing and the drive from the electric motor may consist of gear wheels provided with shock damping means. In operation when the hammer moves upwards the weak auxiliary spring 20 is first compressed and then the main spring 19. After the hammer passes top dead centre the fully stressed spring and the eccentric masses drive the hammer downwards on its working stroke. Before the hammer reaches bottom dead centre the springs 19 and 20 are' fully relaxed so that the hammer is not affected by the stress force of the main spring as it commences its upward movement. The auxiliary spring 20 also prevents the main spring 19 from vibrating during the working stroke.
Patent GB-729681-A (GB)
Title: Improvements in door stops
IPC: E05C19/00
Filed: 1953-02-17
Abstract: 729,681. Door stops and holders. GRAND, S. E. Feb. 12,1954 [Feb. 17, 1953], No. 4401/53. Class 65(1). A device for limiting the opening of a door D comprises a member 1 fixed to the floor and an arm 3 pivoted to the member 1 so that it normally lies close to the floor and can be raised to the position shown to provide an abutment for the door, releasable means being provided for holding the arm in its raised position. Means may be provided for yieldably holding the door against the stop. In the arrangement shown the arm is raised by foot pressure on the end projecting beyond the pivot 7, and is held up by a strut 4b pivoted to the arm at 8 and having an extension 4a ; when the arm is lying flat the strut is received in a recess in the arm, and when the latter is raised the strut falls to the operative position, from which it can be moved by foot pressure against the extension 4a. The door is preferably provided with a rubber abutment member 16, as shown, and with a member 13 to prevent the arm from being forced upwards by pressure on the door : in the form shown the member 13 is constituted by a spring catch so formed and placed that the end of the arm springs under it and the door is thus held against the arm. The door may carry a press switch for engagement by the arm to actuate a bell or other signal. According to the Provisional Specification the arm may be raised by a foot-pedal connected to it or by a lever actuating a cam engaging it; it may be held raised by a pivoted gravity or spring catch carried by the base member ; the base member may have serrations to be engaged by the strut in several positions; the holding device carried by the door may consist of a cam or wedge-shaped projection which trips under the free end of the stop arm when the latter is a little below its highest position, to be released by raising the arm slightly ; and the upward movement of the arm may be limited by an abutment screw beneath its rear end.
Patent GB-1244793-A (GB)
Title: Polyester catalyst recovery
Inventor: HEAD GORDON EDWIN
IPC: C08G63/86
Filed: 1969-01-27
Abstract: 1,244,793. Germanium dioxide. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Jan., 1970 [27 Jan., 1969], No. 4447/69. Heading C1A. Germanium dioxide is recovered from an ethylene glycol solution of at least one germanium compound (less than 2% as GeO 2 , w./w. solution) by vaporizing ethylene glycol until a solution containing at least 2% germanium compound is obtained (as GeO 2 , w./w. solution), adding water to the concentrated solution (at least 34% w./w. of Ge as GeO 2 ), heating (e.g. at 150 C. for 1 hour) to hydrolyse the germanium compounds in the aqueous mixture, cooling to separate or to complete separation of the GeO 2 . in the solid state, and isolating GeO 2 . Before addition of water, any solid that separates from the concentrated ethylene glycol solution may be removed. The isolated GeO 2  may be washed with, e.g., acetone, methanol or ethylene glycol. The initial polyethylene glycol solution may be a condensate of vapour evolved during the poly-condensation stage in manufacture of ethylene-glycolbased polyesters using a germanium catalyst. The GeO 2  is re-usable, dried or wet as catalyst in such polycondensation reactions.
Patent GB-312105-A (GB)
Title: Devices relating to the utilizing of coloured and opaque liquids in illumination
IPC: F21V7/00
Filed: 1928-02-13
Abstract: 312,105. Sharma, D. N. Feb. 13, 1928. Anti-dazzle screens.-A light screening device for use on a vehicle windscreen comprises a chamber adapted to be filled with and emptied of a coloured or opaque liquid by means of a source of pressure or vacuum under the control of a four-way tap. In the form shown in the Figure, liquid from a container w is injected into and withdrawn from a chamber b by means of a pressure or suction source v, such as the intake manifold of the engine, under the control of a four-way tap t. The source v is fitted with a cut-off tap i and the chamber b is fitted with cut-off valves a, c and is joined by a tube d to the container w. The tap t has four connections 1 - - 4 arranged so that when one pair (1, 3) is open, the other pair (2, 4) is closed, and in a neutral position all four connections are closed. Tubes e, h from the source v pass through connections 1, 4 to the chamber b and container w. Tubes f, g, open to the atmosphere, pass through connections 2, 3 to the tubes e, h, or directly to the chamber b and container w. The tubes d, h, may be fitted with removable flexible connections x to allow of the substitution of other containers with differently coloured or opaque liquids. The tap t may be of the rotatable body type, or one in which the body part is pushed in against the action of a spring. The chamber b may be formed by two flat or curved glass, or other transparent, plates separated by thin peripheral washers, it may be cast as a single unit, or it may be formed by bending thin glass tubes into any desired shape. Large chambers may be sub-divided into plurality of smaller chambers with separate inlets and outlets joined to the tubes leading to the four-way tap. The Provisional Specification also states that the source v may be a vacuum pump, and that the smaller chambers, into which a large chamber may be subdivided, may be fitted with a common inlet and outlet.