baber/WOPTO huggingface dataset:
Patent GB-216829-A (GB)
Title: Improvements in hand operated mowing machines
IPC: A01D69/00
Filed: 1923-07-26
Abstract: 216,829. Bleret, L. J. May, 30, 1923. [Convention date]. Lawn-mowers.-A hand-operated machine for cutting grass comprises a light frame with a circular rotary blade 10 having radial cutting ribs and mounted adjustably by a spider frame 9 on a vertical shaft 5, the device running on ground wheels 4 and the blade being rotated by bevelgearing 13, 14 and a hand-operated chain drive 17 - - 19. The vertical shaft 5 is fixed to a cross-frame member 3 supported on the wheels 4 and the knife 10 carries a sleeve 7 adjustably secured to a sleeve 6 loose on the shaft 5. The upper part of the sleeve 6 is provided with a bevel wheel 13 in gear with a wheel 14 on a shaft 15 provided with a chain wheel 16, manual operation of the crank 18 by the operator effecting the rotation of the cutting blade. The blade is provided with radial projections on its upper surface to throw off the cut grass. The cutting edge may be smooth or serrated. A flexible arm 1 is attached to the base of the forward part of the machine and extends to the rear, where it is secured to an upper bar 16'.
Patent GB-644541-A (GB)
Title: Improvements in insulated electric power cables
IPC: H01B9/06
Filed: 1948-07-16
Abstract: 644,541. Oil-filled cables. GENERAL CABLE CORPORATION. July 16, 1948, No. 19209. Convention date, July 23, 1947. [Class 36] An impregnated paper insulated cable is provided with impermeable and non-absorbent wrappings to prevent drainage of oil from the insulation and to prevent the entrance of moisture. The cable is provided with skid wires to enable it to be pulled through a pipe which is then filled with insulating fluid under pressure. The Figure shows a cable consisting of a conductor 11 surrounded by oil-impregnated paper 12 which may be wound over metallized paper tapes or other conducting or semiconducting tapes covering the conductor 11. An electrostatic shielding screen 13 which may consist of a helically wrapped metal tape covers the insulation 12. The wrappings which prevent drainage of oil from the paper insulation 12 comprise in the construction shown in the figure overlapping tapes 15, 16 of copper or aluminium and polyethylene respectively, and two further metal tapes 17, 18. The tapes 15, 16 may be replaced by a single polyethylene tape, or two tapes, both of synthetic material, for example nylon or polytetrafluoroethylene, may be used. The tapes 17, 18 are of metal or other material which stretches less easily than the material of the underlying tapes 15, 16. Before the cable is installed in a pipe it may be kept under internal pressure by connection to a reservoir containing oil or an inert gas such as nitrogen under pressure. The skid wires 19 are approximately semi-elliptical in crosssection. Specifications 393,292 and 471,590, [Group IV], are referred to.
Patent GB-663497-A (GB)
Title: Improvements in or relating to ladders
Inventor: BERNER CORREZE AAGE OSCAR
IPC: E06C7/08
Filed: 1949-07-21
Abstract: 663,497. Ladders. LOFT LADDERS, Ltd. June 15, 1950 [July 21, 1949], No. 19259/49. Class 20(ii) Tubular metal rungs 2 of a ladder are reinforced internally by metal webs or fins which may comprise flat plates 1 or have sections in the form of a star, X or V.
Patent GB-621217-A (GB)
Title: Improvements in copper-tin alloy plating
IPC: C25D3/58
Filed: 1946-06-27
Abstract: 621,217. Electro-plating. METAL & THERMIT CORPORATION. June 27, 1946, No. 19300. Convention date, Jan. 5. [Class 41] A method of regenerating a copper-tin alloy plating bath comprises adding to the bath a substance containing copper stannate either alone or as a major component. One or more of the compounds, copper carbonate, copper cyanide or copper hydroxide may be added to the copper stannate. The mixture may be prepared from the dry salts or by precipitation from solution, by adding for example copper sulphate to a solution containing an alkali metal stannate and one or more soluble salts, the anions of which form a precipitate with the copper of the copper sulphate. The mixture is then dissolved in an aqueous solution of alkali metal cyanide and an alkali metal hydroxide. The tin content of the mixture may be increased by the addition of hydrous tin oxide. The anodes are usually insoluble, but soluble copper or tin anodes may be used to provide some of the copper or tin content to the bath. Specification 571,641 is referred to.
Patent GB-875859-A (GB)
Title: Number scale conversion
Inventor: BENJAMIN RUDOLF
IPC: H03M7/08
Filed: 1957-06-20
Abstract: 875,859. Electrical radix conversion. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 18, 1958 [June 20, 1957], No. 19427/57. Class 40 (1). Electrical representations of a number in one numerical scale are translated with representations of the same number in another scale by arithmetic addition in an analogue accumulator having inputs through conductances of value proportional to the weighting in terms of the new scale of the digits of the old scale. For the conversion of binary scale numbers to decimal notation, Fig. 3, there are connections from each binary scale to appropriate ones of the decimal stages, and each connection consists of a conductance as shown in Fig. 4. A binary number is represented by signals present or absent in each denominational stage 1, 2, 4, 8, &c., Fig. 3. Where a binary number has a " 1 " in the 256 stage, for example, the connections to the denominational stages of the decimal accumulator enter six in the units stage, five in the tens stage and two in the hundreds stage. The values corresponding to successive binary scale digits are entered into the decimal accumulator and carry takes place between the decimal stages as necessary. In Fig. 4 an analogue summing circuit for the first four binary digits 1, 2, 4, 8 is shown, the binary signals being applied to conductances 19, 29, 49 and 89 respectively. The combined inputs are applied to the grid of a valve which is connected to a trigger acting as a threshold circuit responding to an input of ten or more. When the trigger operates it passes a carry pulse to the next higher stage and subtracts ten from the input by the application of a negative signal to conductance 109. A carry input from a lower stage is applied to a further conductance 19. For the conversion shown in Fig. 3 conductances of values 1, 2, 4, 8, 6, 2, 4, 8, 6 and 2 connect successive stages to the units denomination of the decimal accumulator, conductances of values 1, 3, 6, 2, 5 and 1 connect the fifth to tenth stages to the tens denomination and conductances of values 1, 2 and 5 connect the last three stages to the hundreds denomination. Counters are provided to store the number of carries necessary between each pair of stages. Conversions from ternary to binary and vice versa are also mentioned.
Patent GB-1458864-A (GB)
Title: Recovery of anhydrous dioxane
IPC: C07D319/12
Filed: 1974-05-03
Abstract: 1458864 Dioxane BASF AG 3 May 1974 [5 May 1973] 19438/74 Heading C2C Substantially anhydrous dioxane is recovered from a reaction mixture which contains minor amounts of water, 2-methyldioxolane and acetaldehyde as impurities as well as dioxane by subjecting the mixture to an extractive distillation with a solvent which is miscible in all proportions with water, does not form an azeotrope either with water or dioxane, has a higher boiling point than water and can be separated therefrom by distillation. Specified solvents are ethylene and propylene glycol and their oligomers, and alkanolamines. A distillation apparatus for carrying out the extraction is described.
Patent GB-664502-A (GB)
Title: Improvements in methods of and apparatus for cleaning soiled articles
IPC: D06F19/00
Filed: 1948-07-21
Abstract: Soiled textile articles are cleaned by contacting a cleaning liquid and the article in the presence of compressional wave energy and providing relative movement between said articles and the nodes and anti-nodes of the standing wave formed by said energy.  As shown in Fig. 2, the cleaning liquid 15 which may be p  water or a dry-cleaning solvent in contained in a tank 58 the lower end of which protrudes into a second tank 31 so that it is immersed in an oil 57. The tank 31 contains a piezo-electric crystal vibrator 32 and the oil acts as an insulator.  The bottom of the tank 58 is made of material such as methyl-methacrylate which has a good acoustic coupling coefficient to the high audio or supersonic frequencies produced by the crystal.  The tank 58 contains a motor-driven endless <PICT:0664502/III/1> <PICT:0664502/III/2> belt 64 which moves articles 16 relative to the crystal vibrator. In another construction the articles are moved by a conventional washing machine agitator. In furthere constructions the articles are hung on racks in the tank 58 and the crystal is frequency modulated or is moved vertically or two crystals are used which are mounted side by side and switched to vibrate alternately to avoid the effects of standing waves. Specifications 628,415, [Group VIII], and 648,609 are referred to. The Specification as open to inspection under Sect. 91 describes a vibrator for use as an alternative to a crystal comprising a vaned impeller 96, Fig. 10 (Cancelled), which rotates inside a casing 88. An orifice 93 under a diaphragm 92 in the bottom of a tank 84 containing the cleaning liquid, is connected to a slot 95 in the impeller casing and the blocking of this slot by the impeller vanes causes a liquid 87 in the impeller casing to vibrate the diaphragm at a frequency determined by the impeller speed.  The pressure on both sides of the diaphragm is equalized by a screw-adjusted piston 87 connected to the impeller casing.  The use of magnetostriction vibrators is also described.  This subject-matter does not appear in the Specification as accepted.
Patent GB-939155-A (GB)
Title: Improvements in or relating to the protection of cellulose materials from attack by fungi and insects
IPC: A01N31/08
Filed: 1962-05-21
Abstract: Wood, textile material, or paper is proofed against fungi and insects by treatment with a composition comprising alkylated meta-cresols and/or alkylated para-cresols.  The composition may comprise one or more of mono-t-butyl-, di-t-butyl-, and iso-octylmeta and para-cresols.  The composition may comprise 10-40% of monoalkylated cresol and 2-80% of di-alkylated cresol. A saturated or unsaturated aromatic or aliphatic hydrocarbon, alcohol, or ester may be present as solvent.  Examples are given.
Patent GB-750482-A (GB)
Title: Improvements relating to electrical pin and socket connectors
Inventor: WHALE THOMAS HARPER
IPC: H01R13/453
Filed: 1953-07-14
Abstract: 750,482. Two-part couplings. TELEPHONE MANUFACTURING CO., Ltd. Aug. 23, 1954 [July 14, 1953], No. 19525/53. Class 38 (1). A pair of shutters 8, 9 for a socket connector 21 are rotatable about a common pivot 12 and are actuated from the operative position, in which they bear against stops 19, by a link 13 formed of springy wire bent to U -shape with the ends 17 of the limbs crossed and connected to heel portions 18 of the shutters. A leaf-spring 20 formed with a ramp 23 bears against the base 14 of the link so that when the earth pin of a plug engages the ramp, the link is moved to rotate the shutters, the ends 17 at the same time being separated to stress the link and thereby provide the spring bias for returning the shutters on removal of the plug. Fig. 4 shows a modification wherein the link is L-shaped and actuates a single shutter 55. One limb 53b of the link rests against a pair of ramps 62, 63 secured to the socket body, the end of said limb being pivoted on an anchor pin 60 and having a tail 61 bearing against a fixed part of the socket. Thus, when the earth pin bears against the portion of the link between the ramps, the link is pressed down the ramps to actuate the shutter and is stressed at the same time. The ramps may be replaced by inclined slots in parallel plates (Fig. 6, not shown), the link in this case being U-shaped and actuating a pair of shutters. A locking device for a pair of shutters 8, 9, Figs. 8 and 9, may be provided, comprising a sliding member 36 having a portion 37 normally entering between and locking the shutters. Member 36 is secured to the base 14b of U-shaped link 13b and has a ramp 35 for engagement by the earth pin 32. The ends of the link engage slots 39 in the shutters which provide sufficient lost-motion on the initial engagement of the ramp by the earth pin to permit removal of the lock from the shutters. Fig. 10 shows a single sliding shutter 40 actuated by a U-shaped link 13c, the base 14c of which co-operates with ramps 30, 31 similarly to the Fig. 4 embodiment. The ends of the link engage longitudinal slots 45 in the shutter and are moved along them, on operation of the shutter, by a wedge 44 fixed to the socket, thereby stressing the link. Specification 749,633 is referred to.
Patent GB-909093-A (GB)
Title: Improvements in or relating to hollow bodies produced from synthetic plastic tubing
IPC: B29C49/60
Filed: 1959-06-08
Abstract: 909,093. Moulding hollow articles. RODER, G. June 8, 1959 [June 6, 1958], No. 19555/59. Class 87(2). Hollow articles, e.g. conical containers, are produced by clamping adjacent sections of extruded synthetic thermoplastic tubing 2 between the halves of moulds 3 and 4, which open and close alternately and reciprocate in the direction of extrusion, and inflating the sections in the closed moulds. The halves 6, 7 and 8, 9 of the moulds 3 and 4 respectively are connected by pairs of levers 16 to slide members 10, 11 respectively which are adapted to reciprocate on guide rods 12, 13 via a drive through spindles 14, 15. The outer ends of pairs of levers 16 are connected by links 17 to the piston of a pneumatic cylinder which is actuated to pivot the levers about guides 12 or 13 to open the moulds. Halves 6, 7 of mould 3 enclose a section of tubing adjacent the extruder, 1, and the mould moves away at a greater speed than that at which the tube is extruded. The enclosed tubing is inflated through a clamp having jaws 18, 19 engaging the tube at a waste piece 5b. The opened mould 4 moves back over mould 3 to a position in front of the extrusion orifice and then closes around the tubing which is suitably stretched to provide uniform thickness in the finished container. The clamp of each mould includes a spring-loaded piston, Fig. 3 (not shown), and is closed by actuation of cylinders 31 connected to levers 30 and the contianer is removed by releasing the air, opening the mould, and then releasing the clamp. The apparatus produces a chain of conical containers and if necessary the tubing may be expanded by an external vacuum.
Patent GB-724626-A (GB)
Title: Improvements in and relating to snap fastener sockets
IPC: A44B17/00
Filed: 1953-07-14
Abstract: 724,626. Snap fasteners. UNITED-CARR FASTENER CORPORATION. July 14, 1953 [Aug. 2, 1952], No. 19582/53. Class 44. A " three-side-lock " snap fastener socket 10 comprises a hollow body having an opening 20 to receive a shouldered stud 14, spring means 32 disposed about the exterior of the body and having a portion 34 extending across an edge of the opening on the exterior of one side of the socket for snapping engagement with the stud 14, and means (40) on the opposite side of the socket for engaging the inserted stud so as to prevent disengagement of the stud from the socket by a separating force applied on the other side. The portion 34 of the spring is supported by a lip 28 formed on a cut-away portion of the peripheral wall 18 of the socket. The rest of the wall has on its upper edge a peripheral flange 30 provided with a tongue 38 which is curled round the end portions 36 of the spring. The stud 14 is engaged in the socket 10 as shown in Fig. 4 by first inserting the stud shoulder behind an embossed detent 40 in the socket.
Patent GB-1312472-A (GB)
Title: Device for interrupting a stream of sheets
IPC: B65H29/60
Filed: 1970-04-23
Abstract: 1312472 Delivering sheets BONNIERFORETAGEN AB 23 April 1970 [24 April 1969] 19657/70 Heading B8R A stream of overlapped newspapers being conveyed by endless belts from an infeed section 16 to one of two outfeed sections 18, 19 by a pivoted intermediate conveyer section 17 movable between two positions about a shaft 35 by an air cylinder 34a is temporarily interrupted when upper and lower clamp members 22, 21 carried on pairs of arms 25, 23 are brought together, the lower members being raised from below to above the conveying means of the conveyer 17 so as to raise the stream into contact with the upper members, which move downwards. The clamp members are brought together by the operation of an air cylinder 33 and a link 31, the cylinder 33 being co-ordinated with the cylinder 34a and with a counter for the newspapers. The clamping device is mounted on side members 28 carried on the section 17. The stream is thus momentarily interrupted to create a gap therein, when the section 17 is to be moved to its alternative position. The upper clamping members 22 may be stationary. The section 17 may alternatively be stationary and there may be only one outfeed section, in which case the clamping members are operated after the passage of a predetermined number of newspapers.
Patent GB-966321-A (GB)
Title: Carving fork and guard
Inventor: AKERS HARRY
IPC: A47J43/28
Filed: 1961-06-01
Abstract: 966,321. Carving fork guards; fork rests. AKERS & DICKINSON Ltd. May 31, 1962 [June 1, 1961], No. 19872/61. Headings A4A and A4V. Splayed limbs 14 of a finger guard 12 are resiliently retained in aligned apertures 11 in the shank 10 of a carving fork to form a rest for the pronged end of the fork. The guard is bent up from wire or metal strip and the loop 13 may be utilized to retain a carving knife when not in use. The limbs 14 may be notched to resiliently engage the edges of the apertures.
Patent GB-654536-A (GB)
Title: Improvements relating to valves for controlling the supply of a liquid to an animal drinking trough
IPC: A01K7/06
Filed: 1948-07-26
Abstract: 654,536. Drinking troughs. TIXHON, M. T.. and LAGUESSE, E. July 26, 1948, No. 19881. Convention date, June 30. [A Specification was laid open to inspection under Sect. 91 of the Acts on Jan. 29, 1949.] [Class 5(ii)] '[Also in Group XXIX] A drinking trough 71 for animals is provided with a self-closing supply valve opened by the action of a nose plate 70 on a push rod 49 connected to the valve member. Various forms of self-closing valve are described (see Group XXIX) in all of which the valve member 2 has a mechanical connection with a diaphragm 40 so that the inlet pressure acting through a transverse passage 53 tends to maintain the valve on its seat. The mechanical connection may comprise transverse members 38, 39 bearing the push rod 37 and valve member 2 respectively and joined by the rods 65, 66, or it may comprise a single spindle passing with clearance through the passage 53 and an outlet nozzle 55 aligned therewith. The outlet passage 56 may be extended by a pipe 61. In Fig. 7, the diaphragm chamber and the outlet nozzle are screwed into opposite sides of the supply pipe 64. Where the latter is fed from a conduit 72 beneath the trough, the pipe 64 is closed by cap 68 to form an air chamber 73. Alternatively the pipe 64 may be fed from a conduit 69 above the trough.
Patent GB-1391709-A (GB)
Title: Machines for producing or further treating rod-like tobacco articles
IPC: G05B19/06
Filed: 1972-04-28
Abstract: 1391709 Cigarette delivery control system HAUNI-WERKE KORBER & CO KG 28 April 1972 [29 April 1971 11 Dec 1971] 19886/72 Heading A2C [Also in Division G3] A combination comprising a cigarette rod machine, and a filter attachment machine, is controlled during starting and stopping by a programme control device synchronously or asychronously coupled to the machines drive. In the cigarette rod making machine, Fig. la, tobacco passes from a distributor 1 to a tobacco duct 2 by a belt 3. The tobacco rod being formed is moved by a wheel 7 beneath a device 8 for removing surplus tobacco and transferred to a conveyor 13. The tobacco rod is fed into a forming device 14 and combined with a paper 17 from a reel 16. A device 4 gums the ream which is closed by the device 14 and dried by a heating device 6. The cigarette rod is fed to the tubes 19 of a device 21 which cuts it into cigarette lengths which are transferred by a drum 26 to a filter attachment machine. In the filter attachment machine, Fig. 1b six-fold filter rods F from a magazine 35 are fed to a drum 36 and separated by cutters 34 into double length filter plugs which are spaced on a rearranging drum 37 and delivered in staggered rows to a shifter drum 37 and delivered in single file to a magazine drum 39. An accelerator drum 40 lays the double filters between cigarettes on an assembly drum 28 from which they are transferred by a drum 29. On the drum 29 gummed tipping papers, prepared from a strip 41a by a gumming device associated with a cutter roll 44, are attached to the filter plugs on the drum 29. The double cigarettes are finally rolled by a drum 48 and checked by a device associated with a drum 49. The double cigarettes are cut by a drum 50 and transferred to a takeoff belt 56 feeding a tray-filling machine, not shown. Those elements of the machine which are in operation throughout the production cycle are permanently synchronised to the drive mechanism of the machine. Other elements which are brought into operation before or during the starting of the machines or closedown during or after the stopping of the machines are controlled by a conditional logic circuit responsive to the actuation of switches by a programme cylinder synchronised to the machines through an electromagnetic clutch or driven asynchronously in response to signals from a counter responsive to a clock pulse generator. It is stated that the programme cylinder can be replaced by magnetic tapes perforated cards or trace carriers which are scanned photo-electrically.
Patent GB-353656-A (GB)
Title: Improvements in or relating to the manufacture of goods of or containing rubber or similar material
IPC: C08J5/02
Filed: 1930-07-01
Abstract: Perforated sheets of rubber or similar material are obtained by applying an aqueous dispersion to a backing partially or completely setting the dispersion and then producing the perforations.  In an example latex is applied to a backing as of lead, or zinc, a coagulant applied partially sets it, and the coated backing is then placed cold in a hot press and a hot patterned plate is pressed on it.  Vulcanization may occur before, during or after pressing. Specifications 219,635, 290,313, 307,315, and 324,375, [all in Class 70, Indiarubber &c.], are referred to.
Patent GB-1500108-A (GB)
Title: Method of producing highly densified ceramic articles
IPC: B22F3/14
Filed: 1976-05-14
Abstract: 1500108 Hot pressed ceramic articles TOKYO SHIBAURA ELECTRIC CO Ltd 14 May 1976 [14 May 1975] 19931/76 Heading C7D Dense sintered ceramic articles are made by injection moulding the powder to a compact having a porosity of 30-70%, presintering to a porosity < 30% and then embedding the compact in a non fusible non reactive powder which acts as a pressure transmitting powder during hot pressing of the compact. The ceramic material may be carbides, oxides and nitrides of W, Zr, Si, Al, Ti, Ta, Nb, B, V, Hf, Mo and Cr. The preferred ceramic is Si 3 N 4  to which may be added 0À05-30% oxides of yttrium or lanthanum series oxides and up to 20% Al 2 O 3 . The presintering temperature may be 1600- 1900‹C and the pressure transmitting powder may be BN, SiC, AlN or C. Turbine vanes may be produced by the process.