baber/WOPTO huggingface dataset:
Patent GB-204227-A (GB)
Title: Improvements in or relating to mops and the like
IPC: A47L13/24
Filed: 1922-10-24
Abstract: 204,227. Dixon, J., and Dixon, T. Oct. 24, 1922. Handles with clamping retaining devices for mops; fixing by axial holding-devices.-A mop-handle 5 is provided at one' end with a flanged sleeve 7 having holes 8 through which pass the limbs 11 of a U-shaped member 12 adapted to embrace pieces of cloth or other material to form the mop-head. A helical spring 15 is mounted on the sleeve 7 and adapted to engage the extremities 14 of the limbs 11 and act as a nut to tighten up the member 12 and clamp the mop-head against the end of the handle. The sleeve 7 is formed on its interior surface with tapered ribs 9 which cut into the handle when the sleeve is driven thereon. The limbs 11 lie in longitudinal grooves 13 in the sleeve 7. The spring nut 15 may be replaced by an ordinary nut coacting with a screw thread on the sleeve 7 and bearing against the extremities 14 of the limbs 11, or by a nut which bears against the flange of the sleeve 7 and coacts with partial screw threads formed on the limbs 11.
Patent GB-442038-A (GB)
Title: Improvements in or relating to cigarettes or cigars
IPC: A24D1/04
Filed: 1934-10-09
Abstract: 442,038. Cigars ; cigarettes cigar and cigarette holders. RAWLINGS, A. D., 46, Westmoreland Road, Barnes, London. Oct. 9, 1934, No. 28892. [Class 130] In a cigarette or cigar holder comprising a strip 1 of waxed paper wound into a roll and adapted to be drawn out at will by the user to form a tapered smoke passage, a separate tubular element 3 is secured within the innermost turn of the roll with its end projecting to constitute a mouthpiece and to afford the means by which the roll is drawn out. As shown, the holder is permanently affixed to the end of a cigarette 2, its outside turn being gummed to the inner surface of the cigarette wrapper, and a washer or nicotine filter 4 is interposed between the holder and the tobacco. A cork tip 2b may be provided. The roll may be constituted by a single strip, two or more strips wound in opposite directions upon one another, or a strip doubled back on itself and wound half in one direction and half in the other. The holder may be separate from the cigarette, the outer turn being secured within a short tube for the reception of a cigarette ; the tube may be internally gummed to assist in retaining a cigarette.
Patent GB-653549-A (GB)
Title: Improvements in windows of metal profiles
IPC: E06B3/26
Filed: 1948-11-08
Abstract: 653,549. Reversible windows. PERSSON, E. S. Nov. 8, 1948, No. 28961. [Class 20(iii)] 20(iii) In a reversible window of the type comprising a frame in which two coupled sashes can pivot through 180 degrees about a horizontal axis and can then be disengaged to allow the inner sides of the glass in each sash to be cleaned, each sash has a rectangular frame formed of metal profiled section bar and having jointless, rounded corners between all four sides of the rectangle. In the form shown, a window frame 1 has two sashes 2 and 3 hinged together along their lower edges and reversible as a unit about horizontal pivots. Each sash frame is formed in two halves from metal profiles of the section shown in Fig. 2, the profiles being bent to U-form with rounded corners and the two halves being joined in the region of the pivots. Each frame 2 or 3 has a channel 4 or 8 to hold a pane 5 or 9 and a channel 6 or 10 to hold junction pieces such as 13 which hold the halves together. The inner frame 2 also has two internal channels 7 which accommodate' movable curtain holders and guides. Draught between the sashes and frame is prevented by a rubber sealing strip 21a carried by the inner sash and a strip 21 carried by the frame 1 and engaging a flange 19 formed on the inner sash frame.
Patent GB-1520741-A (GB)
Title: Actuators
IPC: F01L27/04
Filed: 1974-06-29
Abstract: 1520741 Stroke speed varying DOBSON PARK INDUSTRIES Ltd 1 July 1975 [29 June 1974] 28964/74 Heading F1D [Also in Division F2] An actuator, for example for a valve 15, comprises a piston 2 moving in a bore 3 under the influences of fluid-pressure admitted to a chamber 5 via passageways 10, 9 and a groove 4a in a spring- loaded plate 4. When the piston has moved sufficiently to open an annular port 11 the con-  trolling fluid is substantially unrestricted and the piston is accelerated. On the reverse movement of the piston the plate 4 lifts against the spring 6 to allow rapid exhausting of the chamber 5. In an alternative embodiment, Fig. 3 (not shown) a needle valve (12) adjusts the flow through a bore (13) leading into the chamber 5 in place of the groove 4a. The degree of opening of the needle valve may be remotely controlled. In a further alternative, Fig. 5 (not shown) control fluid flows into the chamber 5 via spring- loaded ball-chuck valves which restrict the flow through the passages 9 into the chamber 5. Bleed channels (18) in the end of the piston 2 communicate with the annular port 11 at the end of the return stroke of the piston.
Patent GB-225855-A (GB)
Title: Improvements in or relating to machines for making filament supports for electric lamps, and the like
IPC: H01K3/10
Filed: 1924-12-03
Abstract: 225,855. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 5, 1923, [Convention date]. Filaments, supports for.-In a machine for bending wire hooks and inserting them into glass stems, and of the kind wherein the hooks are simultaneously inserted by radially moving devices, annular dies movable vertically in relation to each other for cutting off and bending the hooks are combined with means for moving the glass rods laterally in relation to the dies. A machine is described for inserting hooks first into a button formed on the stem and then into the top of the stem. The stems are mounted in holders 32 carried by rods 27 slidable vertically in a spider 29 adapted to be rotated intermittently by a cam and star-wheel. Rollers 36 on the rods 27 run on a horizontal disc 37 while the stems are being heated, and at each hook-inserting position they pass into leadways 40, 41, which then travel downwards to insert the stems into the hook-inserting devices. Each of these comprises a fixed circular table 60 or 100, around which are arranged a number of wire-inserting needles 65 or 104 adapted to be moved radially simultaneously by an annular cam-plate 66 oscillated by a lever 80 and a cam 81. The inserted wires are severed, and the hooks are formed on their ends by annular dies 70, 71 operated by levers and cams. The enlarged parts of the stem into which the wires are inserted are formed just before the inserting operation by vertically moving rods 93, 130 compressing the heated rods axially. The dies have gaps to enable the stems to leave them laterally.
Patent GB-1357379-A (GB)
Title: Television receiver tuning system
IPC: H03J5/02
Filed: 1971-06-21
Abstract: 1357379 Tuning arrangements MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 21 June 1971 [25 June 1970 (2)] 29041/71 Heading H3Q A television receiver tuning system has the channel tuning voltage from a tuning voltage switching circuit 22 applied to a first terminal of a first resistor circuit 26, an automatic fine tuning (A.F.T.) voltage signal is applied to a first terminal of a second resistor circuit 29 and the second terminals of the first and second resistor circuits 26, 29 are connected to one another and to a terminal of a variable capacitance diode in a tuning circuit 30 such that the voltage across the first resistor circuit 22 is combined with that across the second resistor circuit 29 so that the combined signal is applied to the terminal of the variable capacitance diode. The resistor 26 maybe a fixed resistor (10, Fig. 1, not shown) of lower value than a fixed resistor (11) corresponding to 29. However by using the variable A.F.T. sensitivity switch arrangement 26, 27 ganged to the tuning voltage switch the sensitivity of the A.F.T. voltage can be suitably adjusted for each position of the tuning switch 24 to avoid under or over pulling effect on the tuning by the A.F.T. voltage. The resistor sections 23 may be individually variable for preset tuning or may be a variable resistor. In a modification (Fig. 5, not shown) the variable resistor 26 is replaced by a fixed resistor (36) and the resistor 29 is made variable as an A.F.T. sensitivity switch (37) and is ganged to the tuning switch 24 (34). In a further modification of this (Fig. 6, not shown) the output to the varactor diode of the tuning circuit 30 is taken from the movable contact of the A.F.T. sensitivity switch (37). The input 28<SP>1</SP> to the A.F.T. circuit 28 is obtained from the video IF carrier of a television receiver and a frequency discriminator in the A.F.T. circuit produces the A.F.T. voltage.
Patent GB-782878-A (GB)
Title: Improvements in or relating to automatically controlled variable frequency oscillators
IPC: H03C3/09
Filed: 1955-10-12
Abstract: 782,878. Automatic frequency-control systems. SOC. FRANCAISE RADIO-ELECTRIQUE. Oct. 12, 1955 [Nov. 12, 1954], No. 29057/55. Class 38 (4). A frequency sweep oscillator 1 has its frequency sweep stabilized by a control loop, including a frequency discriminator 3 whose output is additively combined with the sweep voltage in a comparator circuit 4 as negative feed-back. Also, during intervals when the frequency sweep is inoperative, the discriminator output is corrected for each of two different voltages alternately applied at the control voltage input 15 so that the discriminator zero output and characteristic slop are both corrected as necessary. The oscillator output may first be transposed down in frequency by a stable heterodyne oscillator 7 and applied to each of two circuits having frequency discriminators 11, 20 tuned to centre frequencies fn, fm alternately with reference frequencies of these values fn, fm, from stable oscillators 10, 19, the change-over for each circuit being controlled by an electronic or other switch 26 at a frequency, e.g. 50 c/s. The outputs of discriminators 11, 20 will thus be rectangular pulses of amplitude and polarity depending on drift of the transposed frequency from the values fn, fm. The pulses are applied through gated amplifiers 12, 21 opened alternately by a gating control circuit 27 only during constant reference voltages Un, Um being applied at 15 (while the frequency sweep of oscillator 1 is inoperative), to one phase of two phase motors 13, 22 whose other phase inputs are the switching frequencies (50 c/s) of switch 26. The motor 13 opertaes a potentiometer slider 24 to vary a bias additively combined with the output of discriminator 3 to correct this output to the required value producing frequency fn at the output 16. Moreover, motor 22 drives the tapping point of the output potentiometer 28 fed by discriminator 3 so that the characteristic slope is controlled to give an output of correct value also at the frequency fm.
Patent GB-398657-A (GB)
Title: Improvements in or relating to supports for the foundations of machines
IPC: F16F3/093
Filed: 1932-10-18
Abstract: 398,657. Resilient mountings. STOSSEL, H., 91, Ringstrasse, Lichterfelde, Berlin. Oct. 18, 1932, No. 29060. Convention date, Oct. 27, 1931. [Class 108 (iii).] An insulating support for machines comprises a number of blocks or the like a, b, c of materials e.g. natural cork, cork meal, indiarubber, and rubber substitute, such as factis, having different degrees of elasticity and different heights or thicknesses, the material of highest elasticity having the greatest height or thickness. In a support for small machines the blocks are combined by a peripheral frame of bar iron or by pasting over them cardboard, paper, linencloth, textile fabrics, or the like. For supporting large machines, the blocks are placed loosely on a baseplate f. In a modification the blocks are placed between sheets of cardboard and the resulting spaces loosely filled with granular elastic material, e.g. cork meal.
Patent GB-187973-A (GB)
Title: Improvements in clips or fastenings for garments
IPC: A41F11/04
Filed: 1922-10-25
Abstract: 187,973. Aebi, A., and Jeantet, F. Oct. 26, 1921, [Convention date]. Dress-suspender grips. - Relates to fastening devices of the button-and-loop type especially intended for suspending drawers from the waist-band of trousers and comprises a lever f hinged at e to a member d carrying the loop a, the buttoncarrying member i being hinged togglefashion to the lever f at h so that the concave shank of the button is forced against the convex rim of the loop to grip the garment x when the toggle is straightened by pressing the parts together. The members d, f, i are preferably formed of stamped metal, the member d having a hook b which passes over the waist-band.
Patent GB-152606-A (GB)
Title: Improvements in or relating to a method of and means for grinding rollers or the like
IPC: B24B11/00
Filed: 1920-10-15
Abstract: 152,606. Aktiebolaget Svenska Kullagerfabriken. Oct. 16, 1919, [Convention date]. Rollers, treating. - The lateral surface of a roller &c. having an arc-shaped generatrix, the centre of which does not lie on the axis of the roller, is ground by rotating the roller about its own axis and at the same time effecting relative swinging movement between the roller and the grinding-surface about an axis inclined to that of the grinding-surface, passing through the centre of the generating-arc, and parallel to the axis of the roller. The grinding-disk 1 is rotated by a shaft 2 and has a spherical concave grinding- surface having its centre at 0 and a radius equal to that of the generating-arc of the roller. The roller 3 is rotated during grinding about its axis 6 and is also swung about an axis 5, 0 passing through the centre 0 and parallel to the axis 6. The speed of rotation about the axis 6 is preferably greater than that about the axis 5, 0, and the movement about this axis may be oscillatory or a continuous rotation. The movements described ensure utilization and uniform wear of the entire grinding-surface. In a modification, the grinding-disk may be stationary and the roller rotated about its own axis and the axis 5, 0 as well as about the axis of the grinding-disk.
Patent GB-1514217-A (GB)
Title: Method of making tobacco smoke filter rod from fibrillated fibres
IPC: A24D3/08
Filed: 1975-07-11
Abstract: 1514217 Cigarette filter rod BRITISHAMERICAN TOBACCO CO Ltd 29 June 1976 [11 July 1975] 29261/75 Heading A2C In a method of manufacturing cigarette filter rods from a tow of fibrillated polyethylene fibres, the fibres are treated with a bonding agent comprising a non-volatile polymeric ester dispersed in a liquid carrier, the dispersion having a viscosity of 10 to 500 centipoises and a solid content between 10 and 60% by weight.
Patent GB-1124742-A (GB)
Title: Process for the production of modified styrene homo- or co-polymer
Inventor: AGOURI ELIAS
IPC: C08F8/30
Filed: 1965-07-09
Abstract: Amido groups are introduced into styrene polymers by treatment with a carbamoyl halide complex with a metallic halide Friedel-Crafts catalyst, e.g. AlCl3, AlBr3, AlI3, FeCl3 o ZnCl2, in the presence of an inert solvent, e.g. benzene.  The complex may be derived from carbamoyl chloride and AICI3 using 1 mol. of the complex per 208 g. of polystyrene, which may be prepared by bulk polymerization.
Patent GB-924226-A (GB)
Title: Improvements in nuts
IPC: F16B33/00
Filed: 1960-08-24
Abstract: 924,226. Nuts. F. C. HARRISON. Oct. 17, 1961 [Aug. 24, 1960], No. 29301/60. Class 89 (1). A nut 1 of synthetic resin comprises an integral flange 3 projecting from one end and acting as a washer. The nut may have wings for manual operation.
Patent GB-263275-A (GB)
Title: Process of and apparatus for cleansing articles which are coated with or contaminated by oil, grease, paint, or the like
IPC: B08B3/10
Filed: 1925-11-20
Abstract: 263,275. Biggart, J. L. Nov. 20, 1925. Cleansing and abrading compositions.-Articles spotted or coated with grease, paint, or the like are cleaned by immersion in a mixture of sodium silicate, calcium carbonate, and water in a bath 1 maintained at about 170‹ F. by a steam or waterjacket 2 supplied from a boiler 3. On removal they are washed with water. For cleaning hollow articles a pump may be provided for circulating the heated cleansing composition through the interiors. Preferred proportions are 34 lb. of sodium silicate, 51 lb. of calcium carbonate, and 12 lb. of water. Specifications 147,799 and 243,220, [both in Class 95, Paints &c.], and 247,047 are referred to.
Patent GB-293871-A (GB)
IPC: D01D7/02
Abstract: 293,871. Hensing, J. C., (Assignee of Naamlooze Vennootschap Nederlandsche Kunstzijdefabriek). July 15, 1927, [Convention date]. Spindle apparatus.-In spinning bowls or boxes for artificial silk constructed of two or more parts including a foot and a shell of drawn aluminium, the shell 1 is provided with an inwardly turned portion 3 which forms at least a part of the interior bottom of the box. The shell fits on a boss 6 on the foot 5 and abuts against the edges 8, 9, the contact surfaces being, preferably, autogeneously welded and depressions 10 made to ensure a positive connection, or the upper surface of the foot is fiat and a plate of acid-resisting material secured thereto to form a boss the upper surface of which is flush with the interior of the shell. The usual ebonite covering of the shell may be dispensed with, and the foot may be made of an acid-resisting alloy of silicon and aluminium. The shells being separate from the foot may be nested for transit purposes. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction wherein the base portion of the shell engages with the lower surface of an extended flange of the foot. This subject-matter does not appear in the Specification as accepted.
Patent GB-748824-A (GB)
Title: Cyclopentanophenanthrene derivatives and process for the preparation thereof
IPC: C07J1/00
Filed: 1952-11-21
Abstract: The invention comprises D 4-19-norandrostenes of the formula <FORM:0748824/IV(a)/1> where X is -C­CH or -CH3, and a process for their preparation by reducing a lower alkyl ether of estrone (of which the alkyl group contains not more than six carbon atoms) with an alkali metal in liquid ammonia, followed by hydrolysis with a mineral acid and oxidation with chromic acid to form D 4-19-norandrostene-3:17-dione, which is then converted to its 3-enol ether or thioenol ether and treated with either a methyl Grignard reagent, or acetylene and an alkali metal alkoxide, followed by acid hydrolysis.  In examples: (1) 3 - methoxy estrone in dioxane is treated with lithium or sodium in liquid ammonia, the product refluxed with hydrochloride acid and then oxidized with chromic acid in acetic acid to D 4-19-norandosten-3:17-dione.  The 3:17-dione is refluxed with ethyl orthoformate and pyridine hydrochloride to yield D 3:5-19-nor-3-ethoxy-androstadien-17-one, which is treated with ethereal methyl magnesium bromide and then acid to give D 4 - 19 - nor 17a  - methyl - androsten - 17b  - ol - 3 - one.  (2) D 3:5 - 19 - nor - 3 - ethoxy-androstadien-17-one prepared as in (1) is treated with potassium in tertiary amyl alcohol under nitrogen, and then with acetylene to give D 4 - 19 - nor - 17a  - ethynyl - androsten - 17b - ol-3-one on acid hydrolysis.  Specifications 662,400, 745,636, 748,860 and U.S.A. Specification 2,363,338 are referred to.
Patent GB-636638-A (GB)
Title: Improvements in or relating to telecommunication and radar systems
IPC: G01S7/285
Filed: 1947-11-05
Abstract: 636,638. Radio receiving circuits ; radiolocation. BANWELL, C. J. Nov. 5, 1947, No. 29502. [Classes 40 (v) and 40 (vii)] In a double or multiple superheterodyne receiver, continuous variation of the overall band width is effected by varying the frequency by one or more of the local oscillators. The first intermediate frequency f2 is fed to a highpass filter A2 having a sharp out-off at fH below f2, and a falling amplitude above f max. The output from A2 is converted at X2 into a second intermediate frequency f3 which is fed to a low-pass filter A3 having a characteristic shown in full line above A3, giving a sharp cut-off above fL and a falling amplitude below f min. The pass band of filter A2 is thus transposed so as to overlap in part the pass band of filter A3, the degree of overlap being determined by the setting of the second local oscillator LO2. Thus the effective pass band of the receiver is controlled by varying the frequency of the second local oscillator, and can be varied from zero up to the bandwidth f max-fH of filter A2. The output from A3 passes to a detector D and subsequent stages. The above arrangement may be preceded by an additional frequency changer and a wide band filter centred about the first intermediate frequency. Also the final local oscillator is ganged so as to vary at twice the rate of the second local oscillator. This may be done by using as the final oscillator the second harmonic from the second oscillator. The variation of frequency of the local oscillators may be produced by mechanical means, or by varying a control potential applied to a reactor valve forming part of a frequency determining circuit. In the latter case the potential may be derived from rectified noise obtained from an auxiliary amplifier, and used to narrow the bandwidth in the presence of noise. If the ordinary A.V.C. potential is applied to the auxiliary amplifier, the arrangement may be made to maintain a constant signal-to-noise ratio. In radar systems the bandwidth may be made to vary with time so as to give the greatest bandwidth for the reception of the more distant echoes. This is done by applying a suitable voltage wave form synchronized with the transmitter pulse to the frequency determining reactor valve of the local oscillator. To give the same signal-to-noise ratio for all signals it would be necessary for the band width to vary inversely as the fourth power of the time for free space targets such as aircraft, and inversely as the eighth power of the time for targets such as ships. The gain of the receiver may also be variable with time. The circuit may also be arranged to narrow the bandwidth by means of rectified noise voltages. The above arrangements may be combined with means for varving the pulse length inversely with the bandwidth.
Patent GB-192196-A (GB)
Title: Improved construction of liquid fuel burners for starting internal combustion engines
IPC: F23D11/00
Filed: 1921-11-07
Abstract: 192,196. Bell, W. T., and Castle, A. S. Nov. 7, 1921. Spray burners; flame protectors; burners, attaching.-A liquid fuel burner comprises a body portion 1 and a partly conical and partly cylindrical tube 8 fitting over the body portion, the body portion being fitted with a central compressed air nipple 6 and a relatively inclined fuel nipple 7. The tube 8 is formed with radial webs 10, 12 in its cylindrical part 9 and nozzle portion 11<a> respectively. The fuel issuing under pressure from the nipple 7 is atomized by the compressed air jet and the mixture with air induced through perforations 11, 13 in the tube 8 burns at the nozzle 11<a>. The burner is suitable for heating the hot caps of semi-Diesel oil engines and external tubes or parts of other oil engine combustion chambers. The burner is attached to the engine by means of a screw stem 14 and bracket 15.
Patent GB-409305-A (GB)
Title: Improvements in and relating to tables
IPC: A47B1/03
Filed: 1932-10-24
Abstract: 409,305. Tables. WINKLER, K., (trading as FI TI WI FINSTERWALDER TISCHFABRIK K. WINKLER), Finsterwalde, Niederlausitz, Germany. Oct. 24, 1932, No. 29762. Convention date, Oct. 24, 1931. [Class 52 (iii).] An expanding table top comprises a fixed central part b and two leaves c mounted on swinging bows d, and movable as shown. Spring or like devices press the leaves against one another or against the part b.