baber/WOPTO huggingface dataset:
Patent GB-167222-A (GB)
Title: Improvements in and relating to mercury vapor arc devices
IPC: H01J13/02
Filed: 1920-04-22
Abstract: 167,222. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). April 22, 1920. Vapour apparatus, arrangements of.-In a rectifier having a mercury cathode covered with a finely-divided coating of highly refractory material, the arc may be started and maintained at different values of the impressed potential wave by means of an auxiliary anode, so as to produce rectified current impulses of different shapes. The auxiliary anode 4, Fig. 1, is connected with the cathode 2 through a condenser 7 and the secondary winding of a step-up transformer, the primary of which is connected across the supply mains L with the main anode 3, and through a battery 6 representing the load with the cathode. Curves are shown to illustrate the variations produced in the rectified impulses by including capacity, inductance or resistance in the circuit of the auxiliary anode. In the arrangement shown in Fig. 7, the starting potential is applied between the auxiliary anode 20 and the main anode 19 by means of a transformer T. The full-wave rectifier shown in Fig. 8 comprises two main anodes 27, 28 connected across an autotransformer T<1>, and an auxiliary anode 29 in series with a condenser or resistance 32 and the secondary of a step-up transformer T<2>, which may be cut out after starting. The battery 31, representing the load, is connected between the cathode 26 and the auto-transformer. In the arrangement shown in Fig. 9 for controlling a motor A, the potentials applied between the main anodes 54, 55 and auxiliary anodes 56, 57 of two rectifiers 35, 36 are controlled by thermionic valves 39, 40 and a tachometer driven by the motor. The anodes 47, 48 of the valves are connected with the main anodes 57, 58, and the valve cathodes 43, 44 are connected with the auxiliary anodes 56, 57 through condensers 41, 42 and the secondary windings of transformers T<4>, T<5>, the primaries of which are connected across supply mains through a resistance. The control grids 49, 50 are connected through a battery 51 and the armature of the tachometer 52 with a resistance 53 between the cathode-heating batteries 45, 46. The tachometer is driven by the motor so that the potential on the grids, and consequently the potential supplied by the valves to the anodes of the rectifiers, vary with the speed of the motor, with the result that the speed is maintained constant.
Patent GB-1408673-A (GB)
Title: Apparatus for the display of advertisements
IPC: G09F1/12
Filed: 1973-03-08
Abstract: 1408673 Picture and like frames RUDGE HOLDINGS Ltd 11 July 1973 [8 March 1973]  11285/73 Heading A4X [Also in Divisions G4 -G6] Advertisement sheets or cards are attached to a backing board which is removably held in a frame 4 in spaced relationship from a board 1. The backing board rests on rebates 8 of sub-frame members 2 and is pressed upwardly against frame 4 by springs 3. To remove the board, frame 4 is removed by taking out screws 6.
Patent GB-346166-A (GB)
Title: An improved multiple rubbing, grinding and mixing rolling mill for chocolate, soap, paint and the like
IPC: B02C4/04
Filed: 1930-04-09
Abstract: 346,166. Roller mills for grinding or crushing. SIMON AKT.-GES., Nossen, Saxony, Germany. April 9, 1930, No. 11315. Convention date, April 10, 1929. [Class 59.] In a mill for grinding, mixing and rubbing chocolate, paint, &c. comprising a plurality of rolls in contact with one another, each successive roller in each row of low-speed rolls I .. IX and of the highspeed rolls II .. X gradually increases in speed in accordance with the passage of material through the mill. Each high-speed roll II, for example, has twice the speed of the lower, slow roller I and the rollers are arranged so that one high-speed roller engages with two slow rollers, or vice-versa. The speed of each succeeding high- or low-speed roller is gradually increased. The chocolate &c. enters the nip between the rolls I, II and accumulates at the nip between the rolls II, III where it is rubbed down and is removed from the roller II by a scraper m. This scraper delivers the material to the nip of the rollers III, IV where it is ground by the rolls III, IV, V in a similar manner to that of the rolls I, II, III. A scraper m removes the material from the roll IV and the process is repeated in the following rolls. The rollers may be arranged vertically or with a downward inclination.
Patent GB-114746-A (GB)
IPC: A47G25/48
Abstract: 114,746. Boulter, E. July 26, 1917. Coat and like hangers.-Two pairs of wires a<1>, a<2>, bent to a curved shape, as shown in Fig. 2, are connected by sleeves c at one end, while at the other they are coiled, as shown at b<2>, and the free ends connected by other sleeves d. The ends of each pair are arranged to slide within the coils of the other pair. A third pair of wires e, arranged between the wires a<1>, a<2>, is connected to the sleeves c, d respectively. Two pairs of links f have loops at one end to connect to the sleeves d. The free ends of each pair of links are pivoted together at the top, where one end is formed into a hook h. Sliding links are carried from the central wires and support wooden spring clips k. In use, the wire arms are drawn apart to the desired extent. When not required for use, the arms are slid over one another, whereby the hanging links f are brought down to the arms a, while the clips may be supported, as shown, by links m carried on the wires e.
Patent GB-527588-A (GB)
Title: Improvements in self-contained belt drives for machines
IPC: F16H7/02
Filed: 1939-04-15
Abstract: 527,588. Belt gearing. HOPKINSONS, Ltd., BROWN, R. L., and METCALFE, T. April 15, 1939, No. 11524. [Class 80 (i)] In a self-contained belt drive for machines of the type comprising a column on which an electric motor and cone pulleys are mounted, the column a supports a frame c carrying a spindle c<1> about which are pivoted two frames d, e. The frame d carries the electric motor g and the frame e the cone pulleys i which drive the machine. Between the free edges of the frames is an adjustable abutment j, k. From the frames d, e project two arms m, n respectively, of which m has a handgrip and n is pivoted to a link o which passes through a sleeve p and has a handwheel r threaded over its other end. Between the wheel r and sleeve is a springs. Turning the wheel r moves both frames simultaneously and varies the tension in the belt from the cone pulleys i to the machine. By pulling on the handle m the belt leading to the machine can be slackened for shifting purposes. By adjusting the abutment j, k the tension of the belt between the motor g and pulleys i can be varied.
Patent GB-744351-A (GB)
Title: Improvements relating to veterinary surgical instruments
IPC: A61D1/06
Filed: 1950-05-11
Abstract: 744,351. Surgical clamps. McLINTOCK, D. M. March 11, 1952 [May 11, 1950], No. 11736/50. Class 81(2). [Also in Group XXIII] A veterinary surgical instrument for use in rumenotomy comprises gripping components interconnected near their opposite ends by couplings co-operating with the gripping components to enclose a long narrow rumen-receiving space, the couplings being mutually adjustable so that the components can be arranged parallel or at any required angle to each other. Two tubes 10, 11 are held side by side in the same plane by a U-shaped member 12. Screwthreaded bolts 13, 18 are pivoted to each end of one tube 11, one of the bolts 13 passing through a hole 16 in one end of the other tube 10 and the other bolt 18 passing through a slot 19 in the other end of the latter tube 10 so that it may be pivoted clear of the end of the tube 10. The bolts 13, 18 are each secured by thumb nuts 17 so that the tubes 10, 11 may be held in any desired position relative to one another. For gripping a protruding part of the rumen during rumenotomy each tube 10, 11 is provided with resilient gripping means in the form of a sheet 23, Fig. 3, of relatively soft or sponge-like rubber folded round a length of rubber tubing 24 and secured to the tube by clamp strips 20, 21 and thumb screws 25. During rumenotomy a part 8 of the rumen protruding through the side 9 of an animal is held between the gripping means 23, part of the gripping means 23 pressing against'the side 9 of the animal. According to the Provisional Specification alL the parts of the apparatus except the gripping means are made of stainless steel.
Patent GB-497465-A (GB)
Title: Improvements in window regulating mechanism
IPC: E05F11/44
Filed: 1938-04-19
Abstract: 497,465. Straight-line motions. SOC. ANON. BOYRIVEN. April 19, 1938, No. 11743. Convention date, April 20, 1937. [Class 80 (iii)] [Also in Group X] A straight-line motion window-regulator mechanism comprises two arms 4a, 7, of equal length pivotally connected together at one end, the free end of the arm 7 carrying a roller 8 engaging with the window, and the arm 4a being capable of rotation about a pin 11. The arms are so interconnected that the arm 7 rotates through an angle, relative to the arm 4a, twice that through which the latter moves. The pivotally mounted end of the arm 4a is formed with a toothed sector 4 which is engaged by a pinion 2 rotated by the operating handle of the mechanism. A second toothed sector 9 is fixedly mounted on a squared end of the pin 11 and meshes with a pinion 5 on the arm 4a, which pinion meshes with a toothed sector 6. to which the arm 7 is secured, the pitch circle diameter of the sector 6 being half that of the sector 9. By replacing the sectors 7, 9 by complete pinions, the raising and lowering of the window may be effected by continuous rotation in one direction of the actuating handle. The arms 4a, 7 may be duplicated to provide a twin lever arrangement, operable by a common pinion and crank handle.
Patent GB-1382081-A (GB)
Title: Transmission spectra
IPC: G01N21/86
Filed: 1972-03-14
Abstract: 1382081 Spectrophotometers IMPERIAL CHEMICAL INDUSTRIES Ltd 9 March 1973 [14 March 1972] 11767/72 Heading G1A In a method of measuring a transmission spectrum of a film having a thickness of a similar order of magnitude to the wavelengths of the radiation used, the interference fringes caused by internal reflections in the film are cancelled by measuring the total intensity of substantially all of or substantially equal parts of the transmitted and reflected beams produced when the radiation is directed on to the film. In the first arrangement, Fig.1 (not shown), a converging beam from an IR source is reflected by a first mirror (1) on to the film the transmitted radiation being received by a first detector (3) and the reflected radiation being directed by a second mirror to a second detector 4. The outputs of the detectors are added to produce a measure of the total intensity of the transmitted and reflected beams. If the film is mounted on a transparent substrate the effect on the amplitude of the interference fringes in the transmitted spectrum causes incomplete cancellation of the fringes when the signals are added. This can be overcome by attenuating the reflected beam by a corresponding amount e.g. by inserting a piece of the substrate material into the reflected beam path at a point in which the beam has a crosssection equal to that where the transmitted beam passes through the film substrate. Spectral analysis may be preferred using a broad bandwidth source and monochronators placed in front of the detectors. Alternatively a rotating filter disc can be used in front of the source to make measurements at wavelengths one of which is absorbed by the film material and the other of which forms a reference. This method may be utilized to measure the thickness of the film.  In a modification, Fig.2 (not shown), a reflector is positioned so that the transmitted beam is returned back through the film combining with the reflected beam so that the total intensity can be measured using a single detector. In the arrangement in Fig.5 (not shown) a commercially available spectrometer intended for measurement of moisture content by reflection and comprising a source 34 a filter wheel 35, mirrors 39, 310 and a detector 311 is used in conjunction with a polished reflective roller 32 over which the sample film 31 is passed, the roller being rotated with the film to prevent damage to the surface. The radiation transmitted through the film is reflected from the surface of the roller back through the film where it combines with the directly reflected radiation for application to detector 311. The use of a tungsten-halogen lamp for the IR source and interference filters for wavelength selection are mentioned. On line measurements (e.g. of thickness) a film may be utilized to control the production of the film.
Patent GB-733432-A (GB)
Title: Improvements relating to conveyor systems
IPC: B65G47/48
Filed: 1952-05-09
Abstract: 733,432. Conveyers. FREEMAN (ENGINEERS), Ltd., A., and FREEMAN, A. April 29, 1953 [May 9, 1952; Jan. 12, 1953], Nos. 11799/52 and 873/53. Drawings to Specification. Class 78 (1). In a conveyer system by which articles are delivered or dealt with at desired points along the system, and comprising a plurality of index devices secured to the conveyer in association with carriers for the articles, each index device comprising a set of elements adapted to be set in particular combinations of projections and retractions, and a plurality of reader mechanisms sited at the desired points each responsive to a particular index setting to select a particular index device and to trip means acting on the associated article, the conveyer has mounting members positioned along its length each adapted for the detachable seating thereon of a support for a carrier, and each reader mechanism includes a trip arm adapted to be moved. by an appropriately set index device into the path of the support or the mounting member associated with the selected index device, or of a part connected to either member, thereby to abut the same and cause relative movement between the support and mounting member to eject the carrier from the conveyer. The embodiment described is identical with that of Specification 733,431. According to the earlier Provisional Specification, in place of a roller on each mounting member for the detachable seating thereon of the supports, a rotatable sleeve is provided which has a forwardly projecting arm adapted to contact the nose of the trip arm when the latter is moved to tripping position, the mounting member and index device being attached to a block grooved on its underside to rest on the sleeve and being dislodged therefrom upon rotation of the sleeve resulting from contact of the projecting arm on the latter with the nose of the trip arm. Specifications 723,420, 723,421, 733,419 and 733,420 also are referred to.
Patent GB-216136-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01K7/34
Filed: 1924-05-14
Abstract: 216,136. British Thomson-Houston Co., Ltd., (Assignees of Richardson, E. L.). May 15, 1923, [Convention date]. Regulating.-In a turbine, from which steam is extracted for heating purposes, the valves regulating the passage of steam from the extraction stage to the next stage of the turbine are controlled by a device responsive to the pressure in the extraction stage and, it may be, by the temperature of the heated system also. The device is also used to secure quick complimentary movements of the main turbine valve. Several balanced valves pass steam from the extraction stage to groups of nozzles for the next stage and the valves are successively operated by cams on a ring 34 actuated by a pressure piston 40, Fig. 1. Pressure fluid is admitted above or below the piston 40 by a valve 44 connected to a lever 45 pivoted on a fixed bar 46 and actuated from a pressure, responsive diaphragm 48 which is subjected to the action of a spring 52 and, on one side, to the pressure in the extraction stage. One end of the spring 52 is threaded upon a nut 53, Fig. 2, and by rotating the part 55 the tension of the spring and the consequent 55 the tension of the spring and the consequent relation of the movement of the valve 44 to the extraction pressure are varied. The part 55 is integral with a worm wheel 56 and the worm 57 may be operated by hand or, as shown, by reversing the electric motor 58 one or other of the circuits of which is closed when a limiting temperature is reached in the heated system. The switch 61 for this purpose may be actuated by means of an expansible chamber 62 in a fluidfilled thermometric device 63. The main valve 12 of the turbine is controlled in a known way by a centrifugal governor 21 and a fluid-pressure motor 14 with follow-up gear 18. Additional pistons 65 on the stem of the valve 44 control the admission to and exhaust of pressure fluid from the main valve motor 14 independently of the speed-governor control and thereby secure quickly movement of the main valve to meet the adjustment of the inter-stage valves.
Patent GB-1385355-A (GB)
Title: Multi-cylinder hot-gas engine
IPC: F02G1/047
Filed: 1972-03-15
Abstract: 1385355 Burner controllers PHILIPS GLOEILAMPENFABRIEKEN NV 15 March 1972 [18 March 1971] 11998/72 Heading F4T [Also in Division F1] The invention relates to a multi-cylinder hot gas engine 1 and to the control of the air supply 4 to the burners 2 of the engine according to the quantity of fuel being supplied. Each heater comprises a temperature-sensitive element 11 which controls a fuel control mechanism 13 in the fuel supply pipe 3 of the associated burner. Each fuel supply pipe comprises a flow restricting element 14 across which during operation a pressure differential exists which is proportional to the rate of supply of fuel. A selecting device 15 is provided which has a plurality of inlets each communicating with a corresponding one of the fuel supply pipes 3 of the burners on the outlet side of the flow restricting element therein and this device is arranged automatically to select the lowest of the pressures prevailing in the fuel supply pipes on the outlet sides of the flow restricting elements and transmit this lowest pressure to a control member 17 which is responsive to the pressure differential between the lowest pressure and a constant pressure in a common fuel supply pipe 5 and which member is arranged to control in accordance with this pressure differential a flow control mechanism 20 in a common air supply duct 10. As shown, the valve 20 is controlled electrically by the member 17 but it is stated that an hydraulically controlled valve may be used. A number of modifications are described and embodiments in which the air flow and fuel flow are both employed to operate the combustion air control valve are described.
Patent GB-552131-A (GB)
Title: Improvements in or relating to composite yarns
IPC: D02G3/36
Filed: 1941-09-19
Abstract: 552,131. Yarns. BRITISH CELANESE, Ltd. Sept. 19, 1941, No. 12078. Convention date, April 2 [Class 120 (iii)] A composite yarn is obtained by associating a continuous staple fibre roving 4 containing fibres of an organic derivative of cellulose with a fine coherent yarn 11 I carrying a material which is a solvent or softening agent for the organic derivative of cellulose but not for the substance of the yarn 11. By twisting the roving 4 with the yarn 11 substantially all of the staple fibres may be caused to contact with the solvent-carrying yarn and to be anchored firmly to the yarn. The fine yarn 11 may be of cotton, regenerated cellulose, silk, wool, stretched or saponfied organic derivatives of cellulose, or organic ethers or esters of cellulose, and the solvent or softening agent may be acetone, ethyl alcohol, chloroform, ethylene dichloride or methyl alcohol. The organic derivative of cellulose staple fibres may be organic esters or organic ethers of cellulose. The roving and yarn 11 may be twisted together in a false twister head 6 or in a balloon guide above a ring spindle. The solvent may be applied to the yarn 11 by a wick 12 in its passage to the twisting device.
Patent GB-926414-A (GB)
IPC: C08J9/14
Filed: 1960-04-06
Abstract: 926,414. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 17, 1961 [April 6, 1960], No. 12166/60. Addition to 924,111. Class 140. [Also in Groups IV (a) and V] Panels and laminates can be filled with a polyurethane prepared by a modification of the process of the parent Specification in which the interaction between the organic polyisocyanate and the hydroxyl group-containing polyether is carried out in the presence of an organic liquid which contains no isocyanate-reactive groups and has a boiling-point of not greater than 75‹ C. In Example (2) a blend of (A) oxypropylated triethanolamine, tri-(#-chlorethyl) phosphate, triethanolamine, water and an ethylene oxide/propylene oxide block copolymer and (B) diphenylmethane diisocyanate (containing polyisocyanates) and monofluorotrichloromethane is discharged into a cavity between two sheets of hardboard. The mixture expands to give a foam (2.8 lbs./cu. ft.) with hardboard facing panels.
Patent GB-743502-A (GB)
Title: Polarizer for producing uniformly polarized light with aid of interference polarizers and phase retarders
IPC: G02B27/28
Filed: 1953-05-04
Abstract: 743,502. Polarization apparatus. ZEISSSTIFTUNG, C., [trading as JENAER GLASWERK SCHOTT & GEN.]. May 4, 1953 [May 17, 1952], No. 12249/53. Class 97 (1). To produce uniformly polarized light, particularly for headlights and stereoprojectors, a polarizer is provided comprising lighttransmitting bodies in the form of a plate having parallel light-entrance and exit surfaces with bands impervious to light arranged between the light entrance surfaces, the bodies carrying interference polarizing layers inclined to the entrance surfaces so that collimated light is incident thereon at angles larger than 45 degrees, reflecting layers directing the light reflected by the interference layers back to its original direction and phase-retarding foils so arranged that all light leaving the polarizer is in the same polarization condition. As shown in Fig. 2, the polarizer comprises glass prisms 23, 24, 25 formed into a plate having light entrance surfaces 21, surfaces 22 impervious to light and interference polarizing layers 26, 27 and 28 arranged as shown, the rays polarized perpendicular to the plane of the drawing being indicated by dots and those polarized parallel to that plane by small horizontal lines. The planes 26 may alternatively be simple reflecting planes. The phase-retarding foils 29 may be arranged behind the layer 28 as shown or be arranged on the exit surface opposite the corresponding entrance surface. The layer 27 may be omitted and the layer 28 inclined to extend beyond the projection of the surface 21 on the exit surface. In the modification shown in Fig. 4 the interference layers 43, 44 and 45 are arranged on two prismatic bodies shaped and assembled as shown to provide light entrance surfaces 48 and impervious portions 49, polarization foils 50 being provided in the paths of the reflected rays which are as shown. The surfaces 46 and the portions of the layers 45 between A and B may be reflecting. Alternatively the foils 50 may be placed in the directly transmitted beam. Fig. 6 shows a further modification in which a plate 51 having prismatic portions forming isosceles triangles in section and carrying the interference polarizing layers 56 is joined to a plate 52 having recesses forming the lightimpervious bands and having surfaces 59a bearing the polarizing foils 59 being made reflecting or so arranged as to act as total reflectors for light reflected by the layers 56. Specification 707,060 is referred to.