baber/WOPTO huggingface dataset:
Patent GB-1037244-A (GB)
Title: Improvements in or relating to moving coil transducers
Inventor: GAYFORD MICHAEL LAWRENCE
IPC: H04R9/00
Filed: 1964-02-20
Abstract: 1,037,244. Magnetic structures. STANDARD TELEPHONES & CABLES Ltd. Feb. 19, 1965 [Feb. 20, 1964], No. 7130/64. Heading H1H. [Also in Division H4] In a moving coil microphone, one of the polepieces is made of porous material, e.g. sintered iron of density 6 gms./c.c. A cylindrical permanent magnet 1 is located in an iron, steel or sintered iron cup-shaped yoke 2 and a ring-shaped polepiece 3 is force fitted into a seating 4 in the open end of the cup. A dome-shaped polepiece 12 is secured to the free end of the magnet. The density of the sintered parts may be graduated from one part of the magnetic circuit to another.
Patent GB-1371698-A (GB)
Title: Device for controlling the mixture of two gases
IPC: B01F23/10
Filed: 1972-02-16
Abstract: 1371698 Gas burners LE FOUR INDUSTRIEL BELGE 16 Feb 1972 [17 March 1971] 7130/72 Heading F4T [Also in Division B1] A device for controlling the mixture of two gases supplied through pipes 3, 10 comprises coaxial nozzles 1, 4 the nozzle 1 being located within a stationary sleeve 12 on which a ring 11 is rotatably mounted, slots 14, 15 being provided in the sleeve through each of which extends a driving member 16 which is secured to the nozzle 1 and engages freely the inner surface of ring 11 whereby rotation of ring 11 moves the nozzle 1 towards or away from nozzle 4 to vary the ratio of the two gases in the mixture. The driving members 16 engage in an annular slot on ring 11. The ring 11 has graduations thereon showing the ratio of the gases in terms of the position of the ring on sleeve 12. A second ring 19 extending partially beneath ring 11 is also graduated and defines with ring 11 a vernier scale. The nozzle 1 has a flange 22 at its outlet whereby a stationary gas film is established on the outer wall of nozzle 1. The nozzle 4 directs the gases to a mixing chamber 34 containing helical screws. A pressure regulator 31 controlling a valve 40 in gas supply pipe 10 maintains the pressure in chamber 9 equal to that at the outlet 33 of nozzle 4. In a modification the ring 11 is moved by a servomotor controlled by an analyser of the gas mixture present at the outlet 33, and driving a pinion meshing with grooves on the surface of ring 11. In a further modification the ring 11 is freely threaded on sleeve 12 and the driving members 16 engage the screw threads on the ring.
Patent GB-131093-A (GB)
Title: Improvements in Dopes or Varnishes used in Aeroplane Construction.
Inventor: GROVES SAMUEL ERNEST
IPC: C09D101/18
Filed: 1918-04-29
Abstract: 131,093. Groves, S. E., and Ward, T. W. H. April 29, 1918. Addition to 128,659. Varnishes.-Ammonium chloride is added to varnish containing a hygroscopic chloride or a mixture of hygroscopic chlorides as described in the parent Specification. In an example, to a varnish containing 10 per cent of nitro-cellulose, a mix. ture or compound of zinc chloride, and ammonium chloride in equimolecular proportions is added in such quantity that the varnish contains 1 to 5 per cent of combined chlorine.
Patent GB-379237-A (GB)
Title: Improvements in or relating to furnace grates
IPC: F23K3/14
Filed: 1932-03-10
Abstract: 379,237. Furnace grates. SULZER FR’RES SOC. ANON., Winterthur, Switzerland. March 10, 1932, No. 7199. Convention date, March 12, 1931. [Class 51 (i).] In a furnace grate modified for underfeed stoking air passes to the deep bed of fuel at the centre-of the grate through passages 8 in the firebars and to the thinner layers of fuel at the sides of the grate through angular passages 9 in the firebars under the control of dampers 11, 12 which dampers are so arranged that even when closed air may pass through the grate adjacent the bearers 5 for cooling them.
Patent GB-1287808-A (GB)
Title: Improvements in or relating to electric remote control apparatus for a road vehicle
Inventor: RAY GEORGE ALFRED
IPC: F16H63/30
Filed: 1970-02-14
Abstract: 1287808 Change-speed control ROLLSROYCE Ltd 14 Feb 1970 7214/70 Heading F2D [Also in Division H2] An actuator 34 controlling a motor car's  automatic transmission is moved by a permanent magnet electric motor 32 as different positions of a switch 10 are selected. When the switch 10 is moved to a near position, the motor 32 rotates together with slip ring portions 27, 28 until a selected one of contacts 21-26 lies in a gap 30 between the portions 27, 28, the correct direction of motor rotation being ensured by relays 38, 40. As the motor, 32 reaches the selected position, its armature becomes shortcircuited to apply dynamic braking, and if the motor overruns it will automatically reverse to the correct position. Once a parking brake has been engaged by turning the selector switch 10 to "P", no other actuator position can be engaged unless an ignition switch 52 and at least one of two brake system switches 68, 70 is closed. The motor 32 may alternatively be a shunt motor.
Patent GB-289603-A (GB)
Title: Improvements relating to fruit boxes or baskets, and the like
IPC: B65D5/28
Filed: 1927-03-15
Abstract: 289,603. Agambar, J. R. March 15. 1927. Boxes made from special blanks; draining, facilitating. - A fruit box, basket, &c. e.g. a punnet, is made from a blank having parts 1, 2, 2<a>, 3, 3a arranged in the form of a Maltese cross, the upper edges being bound together by strips 4 and secured e.g. by wire stitches. The side edges of the side-pieces are parallel at the top and inwardly inclined towards the bottom. The bottom is perforated to allow water, e.g. from water-cress, to run off.
Patent GB-563806-A (GB)
Title: Improvements in and in the manufacture of means for filtering air for use in mills and work places
IPC: B01D46/02
Filed: 1943-05-07
Abstract: 563,806. Air filters. BARON & SONS, Ltd., J., and GREENWOOD, H. S. May 7, 1943, No. 7232. [Class 8 (ii)] Air is diffused and distributed in mills and workshops through outlet pipes b to which filter bags care connected, the warp and weft of the material. of the bags being spun with double or multiple yarns of jute and cotton. The outlet pipes b are connected to mains a, and formed with bell-mouthed ends s over which the bags are secured by metal clips d.
Patent GB-625770-A (GB)
Title: Improvements in or relating to pen- and pocket knives
IPC: B26B1/10
Filed: 1947-03-15
Abstract: 625,770. Pocket knives. WRIGHT & SON, Ltd., A., and WRIGHT, A. March 15, 1947, No. 7240. [Class 30] In a pocket knife provided with covering scales 6 moulded in a thermo-setting or thermoplastic material and keyed to foundation scales 3 in the moulding operation, the edges 5 of the foundation scales 3 are bevelled and covered by the covering-scales to lock the two together. The bevels preferably extend round the whole periphery of each of the foundation scales.
Patent GB-384980-A (GB)
Title: Spring arrangement for chair cushions, seats, insert cushions and the like composed of conical springs, double conical springs and the like
IPC: A47C23/053
Filed: 1931-03-09
Abstract: 384,980. Spring upholstery. RENTROP AKT.-GES. ALTENA (WESTFALIA), P. A., Germany. March 9, 1931, No. 7276. Convention date, Nov. 13, 1930. Void [Published under Sect. 91 of the Acts]. [Class 52 (iv).] The upper turns of an assembly of upholstering springs are connected together and to a peripheral frame d by metal clips c and the lower ends are also rigidly secured together, preferably by interlocking the bottom turn f of the spring with intersecting metal bands h the ends of which are fastened to a wooden frame.
Patent GB-547453-A (GB)
Title: Improvement in chair construction
IPC: B64D11/06
Filed: 1941-06-09
Abstract: 547,453. Seats. McARTHUR, W. June 9, 1941, No. 7280. Convention date, June 28, 1940. [Class 52 (ii)] A frame structure for aeroplane and other seats comprises stanchions 10, preferably connected by a U-tube base part 12, supported adjustably on base tracks 11, and a seat supporting frame comprising one piece tubular member 14, 15, 16, Fig. 4, connected by upright sleeves 17 which slide on the stanchions and are adjustable thereon. The blocks 18, Fig. 5, secured by straps 19 to sleeves are rigidly connected to the transverse part 16 and provided with spring pins 21 engageable with notches 22 in the stanchions. The straps may be held from movement relative to the part 16 by pins 20, and the spring pins may be retracted by forked members 29 on a transverse rock shaft 28 actuated by a hand lever 25, link 26 and arm 27. Elastic supports 33 may extend from a top cross member 34 of the stanchion frame to the part 16 of the seat frame to raise the seat frame during adjustment. The seat proper may comprise a bottom and back frame 32, 31.
Patent GB-415962-A (GB)
Title: Improvements in radio receiving sets
IPC: H03J3/06
Filed: 1934-03-07
Abstract: 415,962. Wireless receiving-apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 7, 1934, No. 7293. Convention date, April 29, 1933. [Class 40 (v).] The wave-change switch of a wireless receiver is mechanically coupled with a device for modifying the bias and therefore the amplification of at least one of the valves. The valve is biassed by the potential drop in resistance 11 which is in series with resistances 12, 13 across the potentiometer 17. On closing the wave-change switch 14, 15, the resistance 12 is short-circuited and the bias is increased.
Patent GB-692381-A (GB)
Title: Treatment of textile materials to reduce their tendency to felt and to increase their abrasion resistance
IPC: D06M15/59
Filed: 1951-03-29
Abstract: The tendency of textile materials composed wholly or partly of wool or other animal fibres to shrink is reduced, and their abrasion resistance is increased, by treating them with a solution of a synthetic linear polyamide substituted on the nitrogen atoms with alkoxymethyl or methylol groups in an organic solvent, and with a solution of an alkali-metal hydroxide in an organic solvent, and then with an aqueous solution of a mineral or other acid, e.g. hydrochloric, sulphuric or acetic acid, the function of the acid being to neutralize the alkali and convert the substituted polyamide to the unsubstituted form.  Treatment with the alkali and the polyamide may be effected separately or simultaneously, a suitable solvent for both constituents being ethyl alcohol containing 1-7 per cent water.  The substituted polyamides may be prepared by the methods of Specifications 573,482 and 576,363.  Specification 692,380 also is referred to.
Patent GB-1470881-A (GB)
Title: Holographic data storage systems
IPC: G03H1/26
Filed: 1974-03-29
Abstract: 1470881 Holographic data store array SIEMENS AG 29 March 1974 [29 March 1973] 7454/74 Heading G2J The laser beam 1 is split at 3 into signal and reference beams. The deflector 21 deflects the beam 1 and thus it is reflected at 3 on to a selected one 6 of an array 7 of reflection holograms, acting as mirrors, and focused as shown at a corresponding position 11 on a recording medium 20. The reference beam also reaches this position 11 due to the angles of reflection in prism 13 thus an array of holograms, each of which corresponds to one of the array of reflection holograms can be built up. A matrix of digital information is imposed on the signal beam by a modulator matrix 9 common to all positions. Read-out is accomplished by supressing totally the signal beam and receiving the information from the relevant hologram 11 on a detector 14 common to the array.
Patent GB-647282-A (GB)
Title: Improvements relating to the production of wood flour
IPC: B27L11/06
Filed: 1948-03-11
Abstract: 647,282. Grinding wood. STALINOVY ZAVODY NARODNI PODNIK. March 11, 1948, No. 7469. [Class 59] A process for the production of wood flour by grinding the wood in the dry state, in which the wood is so fed to the rotary grinding disc, drum or like rotary element that the wood fibres lie parallel to the axis of rotation of the grinding element, is characterized by the provision on the surface of the grinding element of grinding sand in the form of long, sharp-edged, needle-like grains, the speed of rotation of the grinding element being at least 2,300 and preferably 3,300 metres per minute. Paper impregnated with a cold bonding material, e.g. casein or a formaldehyde condensation product, is glued onto the surface of a drum and electrostatically oriented grinding sand is embedded in a layer of glue on said paper to form a grinding or abrasive surface. A series I of slats of wood to be ground is carried by a table K and pressed against a grinding drum A by a bar E slidable in guide rails F under the action of, for example, weights D. When the slats I have been ground the bar E is moved back and the next series J of slats to be ground moved forward by a conveyer L so that it can be engaged by the bar E.
Patent GB-1156450-A (GB)
Title: Leaky Waveguide Antenna
Inventor: HOCKHAM GEORGE ALFRED
IPC: H01Q13/22
Filed: 1968-02-15
Abstract: 1,156,450. Aerials. STANDARD TELEPHONES & CABLES Ltd. 15 Feb., 1968, No. 7510/68. Heading H4A. A leaky waveguide aerial comprises a rectangular waveguide 1, Fig. 1, with an offcentred longitudinal slot 3 in one wall, and with a conductive transverse periodic partition structure inside. Said structure has a periodicity which is less than the width of the slotted wall, and it extends towards the slotted wall from the opposite wall, and partly up the side walls, forming a set of identical compartments above which there is a clear space. As described, the waveguide is dimensioned for the dominant mode, and the structure consists of equally spaced webs 4. The waveguide may be excited by a probe (Fig. 5, not shown) which is situated a quarter of a guided wavelength from a shotcircuiting backplate, the far end of the waveguide being terminated by a matching load. The slot may be weather-proofed by a thin sheet of dielectric material. For use at frequencies such as 110 Mc/s. the walls and webs of the aerial may be made of mesh material. It is stated that the aerial provides a main beam of low elevation angle and is suitable, for example, for an airfield instrument landing system.
Patent GB-382859-A (GB)
Title: Device for cutting in daylight any length from a photographic roll film prior to development and without cutting the paper backing
IPC: G03D15/04
Filed: 1932-03-14
Abstract: 382,859. Photographic roll film holders. LIBERMAN, A. J., 118, Kurfurstenstrasse, Berlin. March 14, 1932, No. 7525. Convention date, April 13, 1931. [Class 98 (i).] A device for severing and removing the exposed portion from a photographic roll film without severing the backing strip comprises an auxiliary roller slide furnished with delivery and take-up spools and provided with guides to direct the film and backing strip along separate paths between the spools, a cutter being arranged in the film path. As shown, the partly exposed spool a, fully wound, is placed upon an upper spindle and the backing-strip c is led over a guide d to a lower take-up spool. The slide b is then closed and winding of the spool e continued, and the film is directed by a resilient, comb-like member f through a guide channel g behind the guide d. When the exposed portion of the film is reached, as observed by inspection of the strip numbers through windows i, i<1>, a pivoted flap k is turned and a cutter m is operated to sever the film, the exposed section being directed through a side channel l by the flap k to a light-tight receptacle. The cutter m is again operated when the gummed end of the film reaches the end of the guide d. The-spool is then wound completely and the slide b is opened. The unexposed portion of the film is again connected to the backing strip by a strip of gummed paper ; the spool e is unwound until the end of the film appears and is then held by a clamp n during application of the gummed strip.
Patent GB-256514-A (GB)
Title: Improvements relating to silver plated eating utensils
IPC: A47G21/02
Filed: 1926-03-18
Abstract: 256,514. Bremer Silberwarenfabrik Akt.-Ges., (Assignees of Pasch, H.). Sept. 8, 1925, [Convention date]. Spoons. - Silver plated spoons are reinforced at the points at which they are supported, and where there is, consequently, the greatest amount of wear, by silver plates a let into recesses and soldered in position.
Patent GB-367586-A (GB)
Title: Improvements in brushmaking appliances
IPC: A46D3/04
Filed: 1931-03-11
Abstract: 367,586. Brush - making machines. ZAHORANSKY, A., Todtnau, Baden, Germany. March 11, 1931, No. 7559. Convention date, March 12, 1930. [Class 19.] A device for fixing bristles in brush stocks comprises in combination, means 10, Fig. 7, for driving wire loops, and separate means 3 in the filling device for cutting off and forming wire loops and conveying them, as by a punch 6, into the path of the driver 10. The cutting of the wire, and formation of the loop, may take place while the driver is fixing a previouslyformed loop in the brush stock. The feeder heads may be fixed or reciprocating. A length of wire 11, Figs. 7 and 8, is drawn into the machine, and the loop former 3 is moved forwards, a knife 13 severing the wire, which is bent round a former 5. The punch 6 presses the loop downwards through slots in the frame 2 into the path of the feeder and driver. When the punch ascends, the driver begins its stroke. In a modification, Fig. 10, the bristle fixer reciprocates within a casing 8. A fixed plate 9 is connected to casings 4, 8 separating the movable parts.
Patent GB-256152-A (GB)
Title: Improvements in or relating to presses for fixing press-button parts on fabrics by riveting
IPC: A41H37/04
Filed: 1926-03-18
Abstract: 256,152. Puc, V. March 18, 1926. No Patent granted (Sealing fee not paid). Setting press-buttons.-A press, Fig. 2, for attaching pressbutton members having hollow shanks 16, Fig. 1, to fabrics by setting the shank over a washer 13, against a die 1, has a pivoted pressbutton holder 6 arranged in front of the .delivery end of the feed-shoot 11. Pressbutton members 4 fed to the holder are held in the forked end 10 thereof and are removed by the correspondingly shaped nipple 3 of the setting plunger 2 as it descends to set the shank, the holder 6 being pushed back against the action of a spring 8. The press-button members are held in the feed-shoot 11 by the setting plunger 2 until the holder 6 is returned by the spring 8.
Patent GB-763338-A (GB)
Title: Improvements in or relating to method and machines for making fish hooks
IPC: B21F45/12
Filed: 1953-03-19
Abstract: 763,338. Making fish hooks. RAND, S. E. Jan. 26, 1954 [March 19, 1953], No. 7580/53. Class 83 (2). [Also in Group XXX] A method of making fish hooks from prepared blanks consists in placing each blank in a first transporting means in which it is held by one portion while the remaining portion is presented to be operated upon, moving the blank in the first transporting means towards a second transporting means movable in a path intersecting and transverse to that of the first transporting means from which the second transporting means receives the blank and presents the portion previously gripped by the first transporting means ready to be operated upon. Pointed and barbed fish hook blanks are bent in a machine about an anvil 25 (Fig. 3) and a finger 26 strips the bent blanks from the anvil and transfers them to a vibratory slide 13 (Fig. 2) which delivers them past a guide-plate 27 to a rotary selector plate 14. The blanks are fed one by one in grooves 28 in the selector plate to first transporting means 15 (Fig. 5) vertically slidable in a guide 30 and operated by a cam 35. When the blank reaches the top of the selector plate travel the pointed end of the blank is engaged by a moving blade 29 which tilts it so that its shank lies parallel to the plane of the selector plate. Jaws 31, 32 on the first transporter means 15 (Fig. 8) grip the shank, the pivoted spring-loaded jaw 32 being operated by a cam 51 and a pivoted rocker arm 36. Below the jaws a notched guide-plate 33 engages the shank when the jaws are open to locate the blank in the jaws. The cam 35 has two lifts, the first transfers the blank 20 to spring-loaded swaging dies 16 (Fig. 7) slidable in guides 40 and simultaneously operated by cams 41, said dies flattening the bent portion of the blank. The second lift of the cam 35 raises the blank and inserts the bent portion between a pivoted arm 18 and a spring blade 19 of a second transporting means 17 (Fig. 5) whereupon the jaws of the first transporting means release the blank and return to pick up another blank. The second transporting means is slidable at right angles to the first transporting means in guides 42 under the control of a cam 43. The arm 18 has an extension 44 engaging a cam-plate 46 which, as the second transporting means slides forward, rotates the arm 18 into line with the direction of movement of the second transporting means and presents the blank between gripping means 21 (Fig. 6) which closes about the central portion of the blank. The end of the shank is now flattened to form a line attachment between oblique-faced tools 23, one of which is operated by a cam 48. Alternatively, the shank end may be formed into a loop. Skewing dies on the other side of the gripping means 21 finally incline the plane of the hook away from the axis of the shank and the completed fish hook is ejected from the machine.
Patent GB-284196-A (GB)
Title: Improvements in means for discharging cargo from vessels
IPC: B63B27/22
Filed: 1927-03-18
Abstract: 284,196. Smith, L. D. Jan. 24, 1927, [Convention date]. Vessels, trough and tunnel systems for emptying. - In arrangements for unloading bulk cargo from a ship's hold, particularly a hold provided with sub-cargo tunnels in which operate conveyers, the side inclines directing the flow of material to the tunnels terminate in drop-off walls located between the ends of the inclines and the bottom of the tunnel. The conveyer tunnels are roofed in by inclined members 3 which direct the cargo to the space 4 from which it is directed to the tunnels by a centre slope 5. Both this slope and the lateral inclines 6 terminate in drop-off walls bounding the sides of the tunnels. The scrapers 11 which operate in the tunnels are of the shape shown in Fig. 3. with an open digging-end terminating in deflecting shoes 28, the horse-shoe shaped rear having an upwardly and forwardly inclined portion 32. The scrapers are operated by cables 12, 10 the latter being a back haul cable which is supported by a trolly 8 running on a T-beam track 7. The cables are led over suitable guide pulleys to a winding-engine 13. The forward movement of the trolly is arrested by a bumper 20 comprising buffer heads 39, Fig. 6, with rearwardly extending shanks 40 on which are threaded springs 41. During the lengthening of the return loop 9, the scraper passes up the incline 21, deposits the load into the hopper 22, and, when the cable is drawn in the opposite direction, the return loop is taken up until the scraper approaches the trolly and is lifted over the material to be handled during the return stroke. From the dumping hopper, the material is carried by the endless-belt conveyer 23 to a second conveyer 24.