baber/WOPTO huggingface dataset:
Patent GB-290010-A (GB)
Title: Improvements in loud-speakers and similarly operating acoustic apparatus
IPC: H04R11/00
Filed: 1927-03-24
Abstract: 290,010. Menkens, C. March 24, 1927. Magnetic instruments -The reed of an electromagnetic movement is fixed at both ends to a rigid carrier 2 and the magnet and reed carriers 1, 2 are formed of a single casting or of two separate castings connected rigidly near one end and by an adjustable connection at the other, the pole pieces 6 being located between the points of connection, and the carriers have a degree of flexibility relatively to each other. As shown the carriers are connected together by two flexible bowed pieces 9, and relative adjustment is obtained by a screw 3. When the carriers are made in two castings, they may be screwed together or an air-gap at the rear may be adjusted by connecting two inflexible castings by two screws having two different thread pitches or by a pair of U-shaped springs rigidly connected to both carriers. According to other modifications : the free ends of the magnet carrier 1 are connected by a transverse member bridging the reed carrier 2; the relative flexibility resides in the side members of the magnet carrier.
Patent GB-986557-A (GB)
Title: Dehydrogenation of hydrocarbons
Inventor: TIMMS DONALD GEORGE
IPC: C07C5/48
Filed: 1963-02-28
Abstract: Diolefins are formed from mono-olefins by passing in the gaseous phase through a first zone at 350-600 DEG  C. with oxygen, steam and a fluidized or moving plug bed of a basic halide of iron, cobalt or manganese and then through a second zone at a temperature low enough to allow the basic halide to reform from the metal oxide and halogen produced but above the dew point of the gas mixture, withdrawing dehydrogenated gases and recycling the basic halide.  A butene, pentene or hexene may be dehydrogenated.  The basic halide may be introduced as a mixture of the oxide of the metal and a halide of an alkaline earth metal and may be supported on silica gel, activated alumina or pumice. If desired, the reactants may be passed through a succession of alternate hot and cool zones, halide preferably being recycled to the immediately preceding hot zone.  The cool zone may be at 100-400 DEG  C.
Patent GB-119013-A (GB)
Title: Improvements in Punching Machines, or Apparatus.
Inventor: JOHNSON JAMES YATE
IPC: B26F1/02
Filed: 1918-05-16
Abstract: 119,013. Johnson, J. Y., (Commercial Truck Co. of America). May 16, 1918. Reciprocating-punch machines.-Consists of a machine for punching rows of slots in sheet material, such as vulcanized rubber for use as separators in secondary batteries. The punch-carrier 13 is supported at the ends of spaced spring blades 14, fixed to the part 7 of the machine frame, and is forced towards the dies by eccentrics on a shaft 10 acting upon rollers 15; a helical spring 17 assists in the return movement. The carrier is recessed to receive a block 18, in which the punches, formed of steel strip, are clamped by bars 21, 22; each punch is adjustable vertically by a screw 25, and the bars have bevelled extensions which grip the punches close to their ends. The die consists of two bars 29, 30 clamped face to face in a holder 26 that is secured to the crossbars 2 of the frame; the face of one bar is plain, that of the other has slots corresponding to the punches. The stripper plate 35, slotted to, allow of the passage of the punches and the extensions of their clamping-bars, is supported by side-plates from the block 26. The material is fed by two pairs of rollers intermittingly rotated in timed relation to the movement of the punches, from the eccentric shaft 10, by means of a Geneva-stop mechanism and worm gear.
Patent GB-766093-A (GB)
Title: Improvements in propellers for ships
IPC: B63H1/20
Filed: 1955-03-22
Abstract: 766,093. Screw propellers. AKTIESELSKABET STROMMENS VAERKSTED. March 22, 1955 [March 27, 1954], No. 8249/55. Class 114. In a ship's propeller having replaceable blades the flanges for securing the blades to the boss of the propeller are so shaped that they cover the boss. Fig. 3 is a section on the line III-III of Fig. 1 of a four-bladed propeller, the position of one blade on its flange being indicated at 1. The four flanges 4, 5, 6, 7 of the blades are secured to the square section boss 2 by bolts 3 and each flange covers the adjacent side of the boss and projects it against the corrosive action of the sea water. The bolts 3 are grouped in those areas of the flanges where it is known that the largest forces will arise. A narrow slot 8 is arranged between adjacent flanges to permit a fine adjustment of the blades.
Patent GB-766234-A (GB)
Title: Air cooling and heating apparatus
IPC: F24F5/00
Filed: 1955-03-22
Abstract: 766,234. Ventilating. FLYNN, E. E. March 22, 1955, No. 8265/55. Class 137 [Also in Group XIII] Ventilating apparatus comprises a housing 10 with an open top across which a screen 17 and filter 16 extend. A pair of radiators 20 are supported vertically above a centrally-apertured platform 18 and are connected via a thermostatically-controlled electrically-operated pump, to a hot or cold water supply. Beneaeth the platform is a shelf 48, also centrally-apertured, and a fan 49 driven by an electric motor 56 controlled by the thermostat is housed in the compartment between the shelf and platform. Air is drawn by the fan through the filter and between the ribs of the radiators and it then passes, through the aperture in the shelf, e.g. into passages in the floor of the building. A plate 46 between the radiators prevents the air from passing otherwise than between the ribs of the radiator. The whole apparatus can function in an inverted position and in this case the inverted apparatus is stood on a framework 67 as in Fig. 6.
Patent GB-622561-A (GB)
Title: Manufacture of di(alkoxyphenyl)haloethanes
Filed: 1947-03-27
Abstract: Di-(alkoxyphenyl) - haloethanes are prepared from an alkyl phenyl ether and a halogenated acetaldehyde in a homogeneous liquid reaction mixture in the presence of a condensing agent selected from aluminium chloride, bromide, or iodide, boron trifluoride, or hydrogen fluoride.  Preferably, the alkyl group of the ether contains not more than 12 carbon atoms, e.g. it may be methyl, ethyl, propyl, isopropyl, butyl, or amyl, or the corresponding alkoxy groups. Suitable halogenated acetaldehydes are mono-, di- and trihaloacetaldehydes, e.g. bromal, and mono-, di- and tri-chloroacetaldehydes; the latter compound is preferred. A diluent may be used in the reaction, such as nitrobenzene, nitrotoluenes or ether, but it is preferred to use an excess of the ether constituent, i.e. 3 to 4 mols. of the ether to 1 mol. of the aldehyde.  The aldehyde is added gradually with cooling to 30-60 DEG  C. to a mixture of the ether and condensing agent, and at least 0.25 mols. (i.e. about 0.25-1 mol.) of the latter are used per 1 mol. of aldehyde.  A preferred application of the invention is the reaction between chloral and anisole in the presence of aluminium chloride (0.4-0.6 mols.).  In examples 2, 4, 7, 8, 9, 10, anisole and chloral are condensed under various conditions, in the presence of aluminium bromide and chloride, boron trifluoride and hydrogen fluoride as condensing agents, to give 2 : 2-bis-(41-methoxyphenyl)-1 : 1 : 1-tri-chloroethane; in example 3, chloral is replaced by dichloroacetaldehyde to give 2 : 2-bis-(41-methoxyphenyl)-1 : 1-dichloroethane; and in examples 1, 5 and 5, chloral is condensed in the presence of aluminium chloride with phenetole, dodecyl phenyl ether, and 1 : 4-dimethoxybenzene to give respectively 2 : 2-bis-(41-ethoxyphenyl)-, 2 : 2-bis-(41-dodecyloxyphenyl)- and 2 : 2-bis-(dimethoxyphenyl)-1 : 1 : 1-trichloro-ethane.
Patent GB-316208-A (GB)
Title: Process of improving the resistance to corrosion of magnesium alloys
IPC: C23F11/18
Filed: 1929-03-14
Abstract: 316,208. I. G. Farbenindustrie Akt.- Ges. July 25, 1928, [Convention date]. Addition to 287,450 and 305,197, [both in Class 82 (ii), Washing granular &c.j. Corrosion, preventing.-The process for improving the resistance to corrosion of magnesium and its alloys described in the parent Specification can be dispensed with in cases where the metal or alloy is afterwards to be subject to temporary action of water only, a satisfactory protective coating being then obtained by adding to any water with which the metal is to come in contact a small amount, for example, 1 per cent, of bichromate.
Patent GB-786879-A (GB)
Title: Improvements in or relating to wire connectors
IPC: H01R11/11
Filed: 1954-03-23
Abstract: 786,879. Screwing. MINNESOTA MINING & MANUFACTURING CO. March 23, 1954 [March 23, 1953], No. 8455/54. Class 83 (3). [Also in Group XXXVI] A tool for screwing a coiled-wire bush 160, Fig. 16, on to a cable-connection has a cylindrical body 170, Fig. 17, with internal ratchetteeth 171 to engage the end coil 161 and expand the bush during screwing up. Alternatively, the tool body 180, Fig. 18, may be split and hinged at 1801 and have an internal shoulder 181. In another form, a radial projection 231, Fig. 23, on the bush engages an axial slot 241, Fig. 24, in the tool 240, or a lip 252 in the tool 250, Fig. 25. The bush 131, Fig. 13, may be screwed up by a tool 132 which frictionally engages the expanded end-coil 133, and the tool may also engage the coil 135 to unscrew the bush. In another form, the bush may have a radial extension 145, Fig. 14, engaging an axial slot 150 in the tool 141, the extension 145 being broken off at a weakened point 147 after insertion. The tools 132, 141 may be of metal or insulating material. Specifications 715,872 and 786,880, [both in Group XXXVI], are referred to.
Patent GB-691573-A (GB)
Title: Improvements in or relating to apparatus for shaping or softening waxes or the like materials
IPC: A61C13/00
Filed: 1951-04-11
Abstract: 691,573. Heaters for softening wax. JACKSON, B. W. G., and SKINNER, C. July 11, 1951 [April 11, 1951], No. 8457/51. Class 64 (ii) [Also in Group XI] Apparatus for softening waxes and like materials, applicable to shaping the wax on dental bite blocks, comprises an electrically-heated plate 15 to which the body of wax to be shaped can be readily applied, the plate being positioned so that the molten wax can drain to a tray 34. The plate shown, formed of aluminium or alloy, comprises a plain portion 25 and a V-ribbed portion 26 supported in an inclined position by integral side portions 14 on a cabinet 12. The side ribs provide channels extending downwardly at 33 to conduct the melted wax to the tray. An insulated heating element is fastened to the back of the plate and a thermostatic switch in series with the element is provided to control plate temperature. A mains switch 52 and signal lamps 54 are provided on the cabinet. One lamp (red) shows that the current is on and the other lamp (amber) is on except when the thermostat acts to open the circuit through the heating element.
Patent GB-622580-A (GB)
Title: Thermostatic plug connector for electrical appliances
IPC: H01R13/713
Filed: 1947-03-28
Abstract: 622,580. Two-part couplings combined with switches. HUGHES, C. L. (Blair, G., and Comings, H. E.). March 28, 1947, No. 8526. [Class 38 (i)] [Also in Group XXXVII] A plug connector comprises a hollow compartmented body 10 in which are mounted sockets 21, 22, each connected to one element of a two-pole switch 15, 16, 17, 18 which is actuated by a snap-action movement 31, 32, 33 operated by a thermal element 25. The thermal element is secured at one end to the socket 22 and at the other to a lever 27 pivoted on the connector body. The lever is attached to a spindle 31 upon which slides a stirrup 32 loaded by a spring 40 and pivotally mounted on a bracket 35 in the body. The stirrup 32 carries an insulating cross-bar 33 which upon the operation of the switch mechanism causes the contacts 15, 16 to snap away from the contacts 17, 18, thereby breaking the connection between the plug and the supply. A knob 39 is provided for adjustment and screws into the bracket 35 which slides in slots 36 in the connector body.
Patent GB-341339-A (GB)
Title: Improvements in or relating to printing devices or printing device frames
IPC: B41L47/02
Filed: 1930-03-17
Abstract: 341,339. Printing. MOHLER, V. J., 563, Ashland Avenue, River Forrest, Illinois, U.S.A. March 17, 1930, No. 8588. [Class 100 (ii).] Addressing and like machines; printing- surfaces. In printing- devices or printing-device frames which are stored in classified order and are run through addressing &c. machines, and in which a keeper panel or a series of keepers is struck up from the device or frame to receive an index tab, an additional support, such as a projection or lip, is provided at the upper edge of each keeper to extend along the tab, the object being to prevent accidental displacement of the tab. As shown, a raised panel 8 is pressed up from the body of a metal address-plate 4 and is connected thereto by spaced integral connections 9, 10. Between the parts 9, lips 11, formed by slitting and bending the plate, co-operate with the top edge 20 of the plate to form slots 18 adapted to receive, with a close fit, the stems 15 of index tabs 14, aligned slots 19 being provided between the lower edge of the panel 8 and lips 12 formed between the connections 10. Openings 16 in the tabs engage studs 13 pressed up from the plate, the openings being slightly smaller than the studs so that the end of a tab is sprung outwards and removal thereof is facilitated. The tab is strengthened by a rib 17 which assists in providing clamping engagement with the keepers, the panel 8 being curved transversely for the same purpose.
Patent GB-883404-A (GB)
Title: Self-cleaning filter
IPC: B01D50/00
Filed: 1960-03-11
Abstract: 883,404. Air filters. ROCKWELL-STANDARD CORPORATION. March 11, 1960 [March 30, 1959], No. 8611/60. Class 8(2). An oil bath filter comprises a rectangular filter 10 surrounded on four sides by a frame 11 to limit the incoming air to the filter surface perpendicular to the air flow, the frame 11 being welded to the shell of an oil bath reservoir 12 positioned in front, upstream and adjacent the lower portion of the filter 10 such that the oil penetrates the lower part of the filter 10 and enables oil and dirt draining back from the filter 10 to be caught in the reservoir 12. A triangular section housing 13 having an inlet opening 14 stretching across the lower third of its upstream face 13a rests as flanges 12e of the reservoir 12, channels 13d welded to the sides 13b providing the vertical support, the transverse downwardly turned flange 31 of the face 13a engaging its counterpart 32 formed along the top frame member 11; the locking process being completed by the clamps 33 mounted on the reservoir face 12b and their associated dogs 37 which clamp on to the channels 13d of the housing 13. Behind the opening 14 is mounted a baffle means 23 in contact with the upper edge of the opening 14a at zero and bar air velocities to force the meaning air through the oil and thence at low velocity as oil carrying spray on to the filter 10, the baffle means 23 being connected to the lower part of the baffle 26, mounted on a transverse rod 27, by a resilient strip 25 such that when the flow increases the baffle 23 begins to open and by-pass a proportion of the incoming air direct to the filter 10, the baffle 23 continuing to open, under increasing air pressure, until the stop pins 29 are reached. Mounted within the reservoir 12 and extending across its width is an oil trough 17 and skirt 18, whose front edge extends up to the level of the front edge of the reservoir 12 and thus is turned over the reservoir edge 12b in a downwardly extending flange 22, the trough 17 being of semicircular section and welded to the skirt 18 along its four edges. The trough 17 has a number of holes 24 to replenish the oil therein from below when the air velocity is such as to remove the greater part therein as spray on to the surface of the filter 10. At the higher air velocities, oil travels up the rear surface of the trough 17 and is flicked off the tip 21 on to the filter 10. The reservoir 12 has an oil level indicating window 38 and an oil sludge drain plug 39. The leaf springs 30 prevent chattering of the baffle 23 at low air velocities and the opening 14 is covered in by an expanded metal gauge 15.
Patent GB-199478-A (GB)
Title: Improvements in apparatus for heating by the combustion of gas
IPC: F24C15/34
Filed: 1922-03-25
Abstract: 199,478. Alexander, C. J. March 25, 1922. Gas-stoves comprise a heat-absorbiug plate h of fire-brick or other refractory material on which the flames from one or more inverted bunsen burners j, j<1> impinge. The stove casing may be fenestrated at top, front, and sides, or in one or more of these positions, to expose the flames to view, the stove shown having a hinged front c with an opening d covered with gauze e. A second fire-brick o having apertures for the burners may be arranged above the first to retain the heat. Utensils may be heated over an opening p in the stove top. The burners and regulators m are preferably of the kind described in Specifications 21152/12 and 181,081, [both in Class 75 (i), Burners &c.] respectively.
Patent GB-593498-A (GB)
Title: Improvements in wiping down motions of spinning mules
IPC: D01H3/08
Filed: 1945-04-07
Abstract: 593,498. Spinning-mules. FINE COTTON SPINNERS & DOUBLERS ASSOCIATION, Ltd., and COLLISON, W. K. April 7, 1945, No. 8655. [Class 120 (iii)] In a wiping-down motion for the carriage and roller beam of a spinning mule of the type in which a carrier supporting the wiping device is traversed by an endless band, a simple carrier is employed mounted on the front of the mule carriage and carrying means for cleaning the top of the carriage and the front and top of the roller beam at the end of the inward run of the carriage. As shown, carrier A is traversed intermittently across the mule carriage E by an endless rope as described in Specification 273,437, [Class 120 (iii)]. A flannel pad G on a plate F hinged to carrier A wipes the carriage top. An arm H hinged to plate F carries a bush H<1> which at the end of the inward run of the carriage sweeps up and over the front of roller beam E<1>. Downward movement of arm H is limited by an adjustable stop L. A brush H<2> passes under beam E<1> at the end of the inward run and contacts weights e.
Patent GB-810824-A (GB)
Title: Improvements relating to aircraft
Inventor: BENGE BASIL GORDON
IPC: B64C3/56
Filed: 1955-03-24
Abstract: 810,824. Controlling aircraft. FAIREY AVIATION CO. Ltd. June 21, 1956 [March 24, 1955], No. 8663/55. Class 4. [Also in Group XXI] In an aircraft, which may be a guided missile, the wings 1 are folded about a common fore- and-aft axis 2 in the fuselage in order that the aircraft or missile may be housed within the bomb bay of a larger aircraft. Each wing carries spars 3 each pivoted to a frame member 6 of the fuselage by a hollow pivot comprising a sleeve 7 passing through apertures in member 6 and spar 3 to form a hinge with a coaxial bore. Through these bores there extends a control rod 8 for operating a control surface 9 pivoted at 11 to the trailing edge of the aerofoil 1. Control rod 8 is formed in two portions connected together at 14 by a joint which prevents relative axial movement but permits relative rotational movement when the wings and control surfaces are folded about axis 2. Pins 5 are provided to co-operate with slots 4 in spars 3 to retain the wings in their extended positions.
Patent GB-1454842-A (GB)
Title: Vulcanization of polymer blends
IPC: C08L23/16
Filed: 1974-02-26
Abstract: 1454842 Curing rubber mixtures with dithiocarbamates MONTEDISON SpA 26 Feb 1974 [26 Feb 1973] 8725/74 Heading C3E A composition comprising (1) an ethylenehigher alpha-olefin-polyene polymer, (2) a highly unsaturated diene rubber, (3) sulphur or a sulphur donor and (4) a symmetrical metal dithiocarbamate of the formula wherein M is a metal, "n" is the valency of the metal and each R is a C 6 -C 24 -hydrocarbon radical is cured. Examples are given in which the polymer (i) is ethylene-propylene-ethylidene norbornene rubber, (2) is butadiene-styrene rubber, polyisoprene, butadiene-acrylonitrile rubber, natural rubber or a mixture of butadiene-styrene rubber and polyisoprene, (3) is sulphur and (4) is zinc di(didecyl, di-2-ethylhexyl, didodecyl or dicicosyl)dithiocarbamate.
Patent GB-328393-A (GB)
Title: Improvements relating to cooking utensils for roasting and baking purposes
IPC: A21B3/13
Filed: 1929-03-19
Abstract: 328,393. Morris & Wilkinson, Ltd., and Wilkinson, G. March 19, 1929. Lids and covers.-The detachable domed covers of roasting or baking vessels of rectangular form are produced by slitting the metad along each corner, the cut edges being turned outwardly and engaged by curved strips B formed with channelled edges A. The method necessitates the formation of gaps at the upper parts of the corners, but these are covered by the strips B. The lower ends of the strips B may be bent over the bare portions D of the beading wire, or may be enclosed by extensions of the metal of the cover.
Patent GB-287576-A (GB)
Title: Improvements in or relating to clocks
IPC: G04B19/16
Filed: 1928-03-23
Abstract: 287,576. Schwanke, E. March 25, 1927, [Convention date]. Dials and scales, illuminating; index hands and pointers : -In a twenty-four hour dial b the hour numerals 13-24 are superposed on the numerals 1-12 and are formed by filaments of gas-filled lamps or luminous vapour lamps a, a<1>. The lamps of the two series are in parallel circuits closed by a switch governed by a clockwork motor so that only the required numbers say "14 " and not " 2," are illuminated. The hands e, f and minute indications g may be formed in the same way. In a modification, Fig. 4, the filaments i of incandecent lamps h are shaped to form the two alternative numbers.
Patent GB-932382-A (GB)
Title: Process for the polymerisation of lactides
IPC: C08G63/08
Filed: 1960-03-14
Abstract: In the preparation of polyesters by the polymerization of a cyclic ester of lactic acid in the absence of molecular oxygen and initiator, there is used as a catalyst an organo-tin compound. Substances containing alcoholic hydroxyl groups, e.g. methyl lactite, may be used as chain-breakers.  In the examples, lactide was polymerized in the presence of tin tetraphenyl to produce polyesters soluble in benzene, chloroform and acetone.