baber/WOPTO huggingface dataset:
Patent GB-373181-A (GB)
Title: Improvements in or relating to warp letting-off arrangements in looms for weaving
IPC: D03D49/06
Filed: 1930-11-14
Abstract: 373,181. Letting-off warps in looms. MELLODEW & CO., Ltd., T., Moorside Mills, Moorside, Oldham, and MELLODEW, M. P., Parkfield House, Moorside, Oldham, and MELLODEW, J. A., Overdale, Bradgate Road, Dunham Massey, Cheshire, (Representatives of MELLODEW, J. H.). Nov. 14, 1930, No. 34265. [Class 142 (ii).] In looms provided with friction let-off mechanism, the brake bands, that encircle the ruffles of the warp beam, are connected to a movable back rest roller in such a way that the tension on the warp threads, incidental to shedding and beating up, causes the braking force on the beam to be reduced. The brakes take the form of spring bands d lined with Ferodo or other frictional material, one end of each band being connected to the frame b and the other end to chains h which are led around pulleys i and connected to an elliptical spring j. The back rest roller e is supported by pivotally mounted levers s the lower ends of which are connected to the spring j by means of links w. The spring j is supported at the centre by a member e which can be moved along a screw n, by rotation of a handle p at the front of the loom, in order to impart the desired tension to the brake bands d. The arrangement is such that the anticlockwise movement of the levers s, that results from the shedding and beating-up operations, causes a pull to be exerted on the ends of the spring j and the grip of the bands d on the beam ruffles to be released. Gear wheels 3, 4, 5 and a shaft 8 are provided to facilitate rotation of the beam by hand.
Patent GB-282445-A (GB)
Title: Radio signalling system
IPC: H04B1/26
Filed: 1927-12-19
Abstract: 282,445. Loewe, S. Dec. 18, 1926, [Convention date]. Thermionic heterodyne receivers.-The higher of the two frequencies resulting from the combination of a received wave and a locally-generated wave is fed to an amplifier through a piezoelectric crystal. The sum frequency is preferred to the difference frequency, as the sharp selection afforded by the crystal is then less detrimental to the quality of the reception. As shown, a tuned loop aerial 1 is connected to the grid circuit of a valve 3, and the local oscillator 4 is .coupled to its plate circuit, which also includes a circuit 5 tuned to the sum frequency. This frequency is selectively transmitted to resistancecoupled amplifiers 7, 8 by the piezo-electric crystal 6. Resistance-coupled radio-frequency, resultant-frequency and audio-frequency stages may be used, preferably in the form of multiplestage valves.
Patent GB-513038-A (GB)
Title: Improvements in or relating to the purification of cellulose ethers
IPC: C08B11/20
Filed: 1937-12-13
Abstract: 513,038. Purifying cellulose ethers. DOW CHEMICAL CO. Dec. 13, 1937, No. 34509. Void. Convention date, Jan. 18. [Class 2 (ii)] Cellulose ethers are purified to improve the colour without materially changing the viscosity, by preparing a solution of the same in a non-aqueous solvent for the ether and bubbling gaseous chlorine thereinto at room temperature. Alternatively, the chlorine may be dissolved in an inert non-aqueous solvent and the solution added to the solution of the cellulose ether. Suitable non-aqueous solvents are carbon tetrachloride, chloroform, methylene chloride, ethylene chloride, vinylidene chloride, propylene chloride, methyl chloroform, 1, 1, 2-trichloroethane, benzene, toluene, xylene, chlorobenzene, o-dichlorobenzene, methyl-, ethyl-, propyl- and isopropylalcohols and their esters with acetic, formic, propionic, glycollic and lactic acids. Solvents having a boiling point below that of water may be recovered by contacting the solution of the cellulose ether with hot water.
Patent GB-339449-A (GB)
Title: Improvements in or relating to game apparatus
IPC: A63G31/14
Filed: 1929-11-12
Abstract: 339,449. Goldsmith, C., and Goldsmith, W. Nov. 12, 1929. Outdoor games.- Apparatus for use in playing a stepping game comprises a surface formed of a plurality of elements, some or all of which are depressible, and adapted upon depression to close the circuits of visible and/or audible indicators. As shown, the depressible elements 1 are provided with contact element 10 normally maintained above similar elements 11 on a supporting platform 2 by means of springs 3. The elements may be retained against lateral movement by central members 5, Fig. 2, or 16, Fig. 3, or by means of bolts 18, Fig. 4. Switching means may be employed whereby certain of the elements may be rendered operative or inoperative, the switching means serving also to operate illuminating means when transparent elements are used. Paths may be marked on the surface, or the elements may form stepping stones crossing the representation of a stream. The surface may be inclined or stepped and the elements may, if desired, be depressed by hand.
Patent GB-605482-A (GB)
Title: Improvements in or relating to range finders
IPC: G01C3/12
Filed: 1945-12-20
Abstract: 605,482. Range-finders. KODAK, Ltd. Dec. 20, 1945, No. 34561. Convention date, Jan. 19, 1943. [Class 97 (i)] In a coincidence finder having two windows each with a reflector unit reflecting light to an objective forming two images in a comparison plane and means for effecting coincidence the ranging scale comprises two elements, e.g. scale and index, an image of one of which is formed adjacent the other by light which has passed through the objective and been reflected by each reflector unit and by auxiliary reflectors thereat. Errors of adjustment are thereby automatically corrected. As shown in Fig. 10, light from the object is reflected by mirror 20 and transparent mirror 21 to an objective 22 forming two images in the plane 24 viewed through eyepiece 26, mirror 20 being rotated to effect coincidence. The index in the plane 24 is illuminated by lamp 41 light from which passes via reflectors 61, 20 to prisms 56 and thence via reflector 21 to be focussed by the objective 22 adjacent a scale on the plane 24. The index image is moved on range adjusting. The mirror 61 may be omitted and observation made directly through mirror 21. In the modification shown in Fig. 11 coincidence of the object images is observed through eyepiece 26 while light from the lamp 64 illuminates the index an image of which is formed adjacent the scale 69 by lens 63, prism 66, the reflecting surface of a prism 33 on the reflector 20 and the reflector 21. Alternatively the eyepiece 26 may be omitted and scale and object images observed in the same eyepiece. Alternatively the mirror 21 may carry a dove prism for reflection as described in Specifications 605,481 and 605,486 and the spiral scale and fiducial mark therein described be employed. Specifications 605,483, 605,484 and 605,485 also are referred to.
Patent GB-1013695-A (GB)
Title: Apparatus for eliminating liquid particles from gases
IPC: B01D53/26
Filed: 1962-09-10
Abstract: 1,013,695. Separating liquids from gases. FRIGOSCANDIA Ltd. Sept. 10, 1962 [Sept. 22, 1961], No. 34566/62. Heading BIT. At least one generally horizontal filter of corrugated form is interposed in the path of an upward flowing stream of liquid particle-laden gas and a vertical plate 5 hangs from each trough and serves to discharge separated liquid particles. As shown, three corrugation filter elements 1-3 of increasing density are arranged in series within a casing 4 and comprise layers of expanded metal having rhombic apertures having their acute angles directed towards the crests 6 and troughs of the elements. Specification 995,742 is referred to.
Patent GB-317691-A (GB)
Title: Automatic device for effecting rapid tanning of hides or skins
IPC: C14B1/00
Filed: 1928-11-24
Abstract: 317,691. Valle, G., and Podesta, A. Nov. 24, 1928. Treating hides and skins with liquids.-A device for employment in the rapid tanning of skins comprises an automatic mechanism for dipping the skins' into and withdrawing them from a vat and for stirring the contents of the vat while the skins are removed. The skins are suspended from rods 36 to which the requisite movement is imparted by mechanism driven from a shaft 11 which is rotated in a forward or reverse direction by belts, movable by beltshifters 5, 6 to run on fast pulleys 1, 2 or a loose pulley 4, so as to drive a shaft 3 geared to the shaft 11. The shaft 11 is formed with a screw which engages a screwed sleeve 12 which is thereby traversed and engages at the right hand end of its path a jaw-clutch 16 normally pressed to the left by a spring-controlled lever 19. When the clutch is engaged by the sleeve it is moved into engagement with teeth 24 on a shaft 11<1> geared to a shaft 26 which drives, through bevel and chain gearing 27 - - 33, vertical shafts 34 having threads which engage sleeves 35 on the rod 36. The sleeve 12 actuates the belt-shifter rod 7 by engaging stops 39 on a rod 40, which is carried by levers provided with balance weights 43, to cause the sudden movement of the belts. The stirring device is actuated from the shaft 26 through gearing comprising universal joints 46, 48 through which a screwed rod 49 is rotated. The rod 49 engages a threaded block 55 the ends of which enter slots in a fixed casing 51. A piston 56 slides in the casing 51 and between its end and a cross piece 60 fast on the rod 49 is interposed a spring 62. When the shafts 11<1> and and 26, 49 begin to rotate the block 55 moves downward and engaging the end of the piston causes it to rotate and at the same time depresses it until a notch 64 engages a counterpart on the stirring apparatus, which is thus set in motion only when the skins are withdrawn from the bath.
Patent GB-1281011-A (GB)
Title: Photographic exposure control mechanism
Inventor: EASTERLY DONALD OSCAR
IPC: G03B7/00
Filed: 1969-07-10
Abstract: 1281011 Photographic exposure control EASTMAN KODAK CO 10 July 1969 [22 July 1968] 34727/69 Heading G2A A camera comprises feelers 60, 85 which detect tactile codings on a film cartridge indicating spectral sensitivity and film speed and adjust a filter 81 for an objective 10 and filters 61, 71 for a photo-cell 11 of an automatic exposure control system; the arrangement being such that, when the coding indicates the maximum film speed for which the control system is designed, both filters 61, 71 are moved out of the light path of the photo-cell 11. The control system varies either shutter speed or aperture size. When film designed for daylight exposure is used, sensor 85 is rotated to remove filter 81, and sensor 60 enters a notch in the cartridge whose depth indicates film speed to adjust filter 61 accordingly. If maximum speed film is used filter 61 is moved right out of the photo-cell light path and in so moving, also removes filter 71 by means of a cam surface 60b. When film designed for artificial light exposure is used, sensor 85 enters a notch to leave filter 81 in the light path, and filter 61 is again adjusted according to film speed. This sets the artificial light film for daylight exposure. If artificial light exposure is required a key 35 is inserted and contacts a lug 76 to remove lens filter 81 and to remove filter 71 to compensate for this. If key 35 is inserted when daylight film is present it has no effect, since rotation of sensor 85 has shifted a lever 70 a distance sufficient to prevent key 35 engaging lug 76. Fig. 1 (not shown) depicts a similar situation but no means is provided for rendering key 35 ineffective when daylight film is used.
Patent GB-1109274-A (GB)
Title: Slide valve for controlling the flow of liquids
IPC: F16K11/065
Filed: 1965-08-13
Abstract: 1,109,274. Valves. MARTIN NENCKI A.G 13 Aug., 1965 [14 Aug., 1964], No. 34797/65. Heading F2V. A valve housing comprises four rectangular sections 15-18 held together by bolts 22 and providing, respectively, a leakage port 32, an inlet 29, an outlet 30 and a leakage port 33. The sections are spaced apart by annular plates 19 defining grooves 26 in each of which is located a rubber ring 26 and a metal ring 28, the latter bearing against an axially movable cylindrical valve member 11 having a relieved central portion providing through - flow recesses 31 (Fig. 2, not shown). A number of sections such as 16, 17 may be arranged to provide a multiway valve having three or more flow passages.
Patent GB-350876-A (GB)
Title: Improvements in and relating to ingot moulds
IPC: B22D21/02
Filed: 1930-11-20
Abstract: 350,876. Mould materials ; moulds. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., M³lheim, Cologne, Germany. Nov. 20, 1930, No. 35018. Convention date, Dec. 23, 1929. [Class 83 (i).] Ingot moulds, especially for alloys of zinc and aluminium, &c., in the casting of which rapid cooling is undesirable, are formed of an alloy of low conductivity such as the iron-nickel alloy sold under the registered Trade Mark " Invar," and containing about 35 per cent of nickel, with a jacket of a material such as copper, having a high specific heat and a low radiation of heat from the surface.
Patent GB-1384729-A (GB)
Title: Method of measuring speed changes of roating or linearly moving bodies
IPC: G01P3/48
Filed: 1972-07-27
Abstract: 1384729 Measuring speed INTERNATIONAL STANDARD ELECTRIC CORP 27 July 1972 [2 Aug 1971] 35087/72 Headings G1A and G1N Changes in speed of a rotating or linearly moving body, eg a toothed disc 1, are detected within a time interval less than the time between successive teeth passing a detector, by two magnetic or optical detectors 2, 3 which produce sinusoidal voltages in phase quadrature which are mixed in respective multiplicative mixers 5, 4 with a carrier frequency generated at 6 and the resulting signals are added at 8, the frequency of the single sideband signal thus formed corresponding to said speed. This signal may be transmitted over a path 10, limiters 9 and 12 removing noise, and fed to a discriminator 13.
Patent GB-173526-A (GB)
Title: Method and apparatus for the electrical transmission of messages along conductors
IPC: H04J1/14
Filed: 1921-12-30
Abstract: 173,526. Huth Ges., Dr. E. F., and Schwarz, C. Dec. 30, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Wired wireless systems; calling apparatus.-A special calling-up receiver is used, permanently adjusted to the calling up wave peculiar to the station, and of less sensitiveness than the message receiver, which can be tuned to any wave, as also can the message transmitter associated therewith. Fig. 1 shows a transmitter s, a receiver e, and a special calling-up receiver r. The switch u, if thrown to the right, disconnects the transmitter s and receiver e, and connects the receiver r to the receiving line p. A single calling-up receiver may be connected in multiple to several transmission lines, or it may be switched over at intervals to these lines in turn. Such arrangements may be employed in wireless telephony and telegraphy. A special calling up transmitter may also be used. Fig. 2 shows two conductor sections A, B, with two calling-up keys t<A>, t<B> actuating the electromagnetic switches m, n to connect the selected line o to the calling-up transmitter. A transmitter or receiver may be so constructed that, according to the position of a change-over switch, different connections in the transmitters and receivers may be effected. The receiver may be tuned automatically to the calling-up wave in one position of the switch, and in another position calling-up apparatus such as a buzzer may be connected to the respective transmitter. A special aerial may be used for call reception and for calling-up transmission.
Patent GB-785223-A (GB)
Title: Improvements in or relating to apparatus for detecting the presence of foreign bodies on the bottoms of transparent vessels
Inventor: STOATE NORMAN PARKER
IPC: G01N33/00
Filed: 1954-12-03
Abstract: 785,223. Photo-electric indicating arrangements. U.D. ENGINEERING CO., Ltd. Nov. 30, 1955 [Dec. 3, 1954], No. 35136/54. Class 40 (3). An apparatus for detecting the presence of a foreign body in the bottom of a transparent vessel such as a milk bottle comprises a cathode-ray tube located so that a scanning light beam therefrom is directed to explore the vessel bottom, a light-responsive device receiving the light transmitted therethrough, and means giving a response when the light received drops below a predetermined value. Support means for the vessel are necessary which avoid significant obstruction to the passage of the light and it is necessary to be able to adjust the area explored in order to examine different sized vessels. In one embodiment bottles 1 fed along a conveyer 2 are transferred across a knife-edged grid support 4 to a second conveyer 5. Below the grid is positioned a cathode-ray tube 7 the beam of the light from the scan of which is directed through the bottle to lightsensitive device 8 controlling an indicator and/or a device deflecting reject bottles. Various scan patterns may be used, notably a spiral pattern obtained by the use of a rotating electromagnetic deflecting field. It is essential that the scan does not extend beyond the inner edges of the bottom of the vessel being examined. In a preferred form the scanning mechanism is operated continuously and the light-sensitive system rendered effective only when a bottle is correctly positioned by switch means co-operating with the movement of the bottles. As the scanning can be effected very rapidly it is possible to move the bottles uninterruptedly through the test position without bringing them to rest if desired. In a modification the bottles may be supported by parallel rails fitting below their neck rings instead of on a grid. The cathode-ray tube may be positioned above or below the vessel as is most convenient and lenses, such as those shown at 12 and 13, may be necessary. Mirrors may be introduced into the light path so as to enable the cathode-ray tube and light-sensitive device to be mounted together above or below the test position (Fig. 5, not shown).
Patent GB-1473369-A (GB)
Title: Polyalkylene terephthalate resin compositions
IPC: C08K7/12
Filed: 1974-08-09
Abstract: 1473369 Polyalkylene terephthalate compositions CELANESE CORP 9 Aug 1974 [10 Aug 1973] 35184/74 Heading C3R A polyalkylene terephthalate moulding resin composition comprises an intimate blend of polypropylene terephthalate or polybutylene terephthalate each having an intrinsic viscosity of from 0À75-1À5 decilitres per gram as measured with an 8% solution in orthochlorophenol at 25 C., at least 2% wt. of the said terephthalate being present as a powder sufficiently small to pass through a 30 mesh screen of the Tyler Standard Sieve series; at least one flame retardant; asbestos and optionally a reinforcing filler and/or a substituted or unsubstituted alkylene bis fatty acid amide. Suitable flame retardants are mixtures of an aromatic halogen (particularly bromine) containing compound and a compound, particularly the oxide, of arsenic, antimony, bismuth or phosphorus. Suitable fillers are glass fibres, talc, acicular calcium metasilicate, cellulosic fibres, cotton fabric, paper, synthetic fibres and/or metallic powders. Preferred fatty acid amides are ethylene bis-stearamide, hexene bis-lauramide and ethylene bis-3-(3,5-ditertiarybutyl, 4-hydroxy phenol) propanamide. In the examples compositions are prepared from polybutylene or polypropylene terephthalate chips and powder, asbestos, glass fibre, antimony trioxide and either decabromodiphenylether, pentabromotoluene or tetrabromophthalic anhydride.
Patent GB-1097681-A (GB)
Title: Apparatus for forming metal tube from helically rolled strip
Inventor: BYARD WALTER SIDNEY
IPC: B21C37/12
Filed: 1963-09-06
Abstract: 1,097,681. Making tubes; helically coiling strip. MOTHERWELL BYARD Ltd. Oct. 1, 1964 [Sept. 6, 1963], No. 35232/63. Headings B3A and B3E. In forming a helically welded tube from strip material, strip is fed between three adjustable roller assemblies 11, 12 and 13, each assembly including a number of rollers mounted on a beam which is disposed in, and is adjustable along a line parallel to the axis of the formed tube, the beam 17 of roller assembly 12 being additionally adjustable substantially radially of the tube in order to accommodate tubes of different diameters. Each roller 14 can be clamped relative to its base in any desired angular position. A coil of strip is supported on rollers 31 and 32, Fig. 1, of a table 2 and is fed between a pair of driven rollers 35, straightening rollers (not shown) and to the bending roller assemblies. The strip is submerged arc welded on the inside at 51 and the outside at 52. A carriage 53 is movable with the tube and cuts it to desired lengths by a motor-driven slitting cutter 54. The table 2 is pivoted at 38 and movable along arcuate rails 40 in order to provide for different tube helix angles.
Patent GB-1414876-A (GB)
Title: Weighing machine
IPC: G01G23/20
Filed: 1973-07-25
Abstract: 1414876 Indicating weight W & T AVERY Ltd 17 July 1974 [25 July 1973] 35506/73 Headings G1J and G1W An indicating chart assembly for a weighing - machine comprises a main chart plate 11 provided on its front face with a metric scale and price indicia, and on its rear face with an avoirdupois scale, and a subsidiary chart plate 20 dimensioned and adapted to overlie either of the weight scales on the main chart plate, the subsidiary scale plate carrying an avoirdupois scale and a metric scale on its front and back faces respectively so that according to whether the subsidiary scale plate is mounted on the front or back of the main scale plate, the weighing machine displays either avoirdupois or metric scales on both sides. The price per unit weight markings 16 on pointer 10 may be changed from metric to avoirdupois by means of a self adhesive paper strip. In a modification the pointer is fixed and the chart assembly moves relative thereto.
Patent GB-738964-A (GB)
Title: Improvements in or relating to water jet pumps
IPC: F04F5/46
Filed: 1953-12-22
Abstract: 738,964. Injectors. LEVIT, A. Dec. 22, 1953, No. 35572/53. Class 71. In a water-jet pump of the type comprising a centrifugal pump situated at the top of a well and drawing liquid from a rising main in the well and wherein a nozzle in the rising main is supplied with pressure liquid from the pump by means of a pressure pipe, the pressure pipe 2 is located inside the rising main 1. The main 1 has an extension 3 and a suction pipe 4 is connected to the extension 3. The injector device is mounted on the pipe 4 and is connected to the main 1 by a diffusion pipe 7 and to the pressure pipe 2 by a funnel portion 13 and a pipe 12 which merge from a crescent-shape cross-section at the top to an elliptical or circular cross-section at the bottom.
Patent GB-781093-A (GB)
Title: Improvements in or relating to side pieces for spectacles
IPC: G02C5/16
Filed: 1954-12-09
Abstract: 781,093. Spectacles. BRESSY, S. H., and DUPLOYER, M. Dec. 9, 1954. No. 35651/54. Glass 97(1) In a spectacle frame in which the side arms are made of a metallic core embedded in an outer non-metallic part of the covering of the side arms near the hinge is replaced by a metallic or non-metallic ring or rings free on the core and retained thereon by an end-piece riveted to the end of the core by means of the rivets which attach the side arm to the temple hinge. Preferably, the end piece is in the form of a cap fitting over the end of the core. The separate rings 3, 4, 11, can be open or closed or, a single ring can be constituted by a piece of wire wound round the core (Figs. 9 and 10, not shown). The rings may be decorative and their relatively loose engagement with the core enables the side piece to retain the flexibility of the core. The flexibility depends on the distance a in Fig. 2 and this may be greater on the outside of the side arm than on the inside so that the side arm is more flexible in the inward direction than in the outward direction and viceversa. The distance a and thus the flexibility, can also be varied along the length of the side arm. The form shown in Fig. 5 in which rings 11 are joined by links. 14 is stated to be more flexible than that shown in Fig. 2.