baber/WOPTO huggingface dataset:
Patent GB-254088-A (GB)
Title: Telephone receivers or transmitters
IPC: H04R13/02
Filed: 1925-06-12
Abstract: 254,088. British Thomson-Houston Co., Ltd., and Morton, C. J. June 12, 1925. Magnetic instruments.-A sound-reproducing or transmitting instrument, such as a telephone receiver or loud-speaker, of the kind comprising a pot-shaped magnet, a plunger vibratable with the diaphragm in a longitudinal air-gap of the magnet and an operating coil arranged, in the case of reproducing, to produce changes of flux in the air gap corresponding to received electric oscillations, has the, coil located on the pole-face of the central limb of the magnet. A magnetic shunt field between the central and outer limbs of the magnet, preferably formed by an annular extension of the central limb, is provided around the coil. The pot-shaped magnet comprises an annular member 21 connected at its lower end to a magnetic disc 22 and at its upper end to an annular member 23 of magnetic material, the central limb 24 being secured to the disc 22 by a threaded bolt 19. The limb 24 is enlarged at 25 and provided with an annular rim 26 which forms the magnetic shunt between the central and outer limbs, the operating coil 27 being located within the rim 26. The magnet assembly is mounted in a cup-shaped member 28 which can be moved towards and away from the diaphragm 14 carrying the magnetic plunger 32 by means of a nut 17 co-operating with the threaded bolt 19.
Patent GB-515067-A (GB)
Title: Improvements in or relating to the control of heat exchange apparatus
IPC: F22G5/04
Filed: 1938-05-23
Abstract: 515,067. Fluid-pressure servomotor-control systems. GORDON & CO., Ltd., J., O'BREEN, J. E., and GENT, J. VAN. May 23, 1938, No. 15330. [Class 135] The temperature at which fluid is delivered by a heat exchanger is controlled by subjecting a factor or factors influencing that temperature to a permanent control in accordance with that temperature and to a temporary control which is operative upon changes in the heat requirement imposed upon the heat exchanger or in a condition influenced by such changes, the effect of the temporary control being gradually reduced as the permanent control becomes effective. Fig. 1 shows a boiler 1 with a superheater 2 in which the temperature of the superheated steam is controlled by a thermostat 9 in the steam outlet pipe 10 and by a device 17. The latter is actuated, for example, by the rate of flow of primary air, which may be supplied to the furnace by a forced-draught fan 18 automatically controlled in accordance with the pressure or rate of.flow in the steam pipe 10, and consequently the heat requirement, and both the device 17 and thermostat 9 are associated with a power cylinder 4, the piston of which is connected to dampers 3 controlling the flow of flue gases through the superheater and is subjected to a fluid pressure under the control of a pilot valve 7 actuated by a link 8. The link 8 is connected by a spindle 15 to a bellows 14 in a chamber 13 and by a spindle 26 to bellows 25, 27 in chambers 24. 28 connected by a passage 29 locating an adjustable leak valve 30, and the chambers 13, 24 respectively are connected by pressure lines 12, 23 to pilot valves associated with the devices 9, 17. In operation, upon a change in the rate of flow of the primary air, the bellows 25 pivots the link 8 to effect actuation of the dampers 3, but after a time, determined by the adjustment of the valve '30, the pressures in the chambers 24, 28 becomes equalized and the link 8 returns to a position determined by the pressure obtaining in the chamber 13. In a modification, applied to a hot water heating system, Fig. 2, in which water is heated in a boiler 40 and circulates through a closed circuit comprising outlet and inlet pipes 41, 42 and a pump 48, the piston of the power cylinder 45 controls a chimney damper 46 and also the motor 47 of a mechanical stoker and is itself controlled by thermostats 51, 54 in the said outlet and inlet pipes through a device 49 which comprises the link 8 and bellows 14, 25, 27 &c. of Fig. 1. Specification 170,683, [Class 51 (i)], is referred to.
Patent GB-263675-A (GB)
Title: An improved appliance for extricating the bogged wheel of a motor vehicle
IPC: B60S9/10
Filed: 1926-06-18
Abstract: 263,675. Cizek, J. June 18, 1926. Appliances for extricating bogged motor vehicles.-A plate 1 having an enlarged end 6 is clamped as shown to a wheel. Rigidity is imparted by means of a hinged stay 2 engaging with the hub.
Patent GB-120080-A (GB)
Title: An Improved Hand-truck or Trolley.
Inventor: LISTER RONALD
IPC: B62B1/14
Filed: 1917-10-23
Abstract: 120,080. Lister, R. Oct. 23, 1917. Hand-trucks of the kind bv means of which a box containing the load may be readily taken up and deposited comprise a frame A adapted to turn as a lever upon the axles of the wheels B and provided with slots C for engagement with projections E upon the box D.
Patent GB-697413-A (GB)
Title: Improvements in and relating to the driving mechanism for the weft inserters in shuttleless looms
IPC: D03D47/00
Filed: 1951-06-29
Abstract: 697,413. Loom picker motions. DEWAS, R. June 29, 1951 [July 13, 1950], No. 15493/51. Class 142(ii) Picking arms for shuttleless looms are each mounted in a casing having an oil bath, the casing being pivoted to permit movement of the arm with the batten. Each casing 9 is carried on a shaft 6 on which are pivoted the swords 5. Picking motion is derived from a cam 13, the picking arm 3 being carried on a stub shaft 20. A strut 10 connects the casings to the swords.
Patent GB-1431791-A (GB)
Title: Material for use in the preparation of a drink
IPC: A23L2/38
Filed: 1973-03-30
Abstract: 1431791 Medicinal extract from water oats H ONODERA and K IWASAKI 30 March 1973 15548/73 Heading A5B [Also in Division C6] A medicinal extract is obtained when wateroat leaves are partially dried, water-washed, steamed, cooled, fermented in a silo, dried, and finally used in drink preparations. Steaming may be at 100‹C for about 30 mins, followed by cooling to 5-10‹C and storage in a silo for about 15 days. The partially dried leaves may be out into pieces before washing. The steamed leaves may be allowed to cool on a straw mat and the dried product may be out or milled.
Patent GB-682440-A (GB)
Title: Improvements in and relating to remote control systems for electric motors
IPC: H01H51/20
Filed: 1951-05-23
Abstract: 682,440. Electromagnetic switches. BROOKE, W., and BALDWIN, H. T. May 23,1951, No. 15699/52. Divided out of 682,434. Class 38 (v) In a system for controlling electric motors, complete closure of the contactor A is ensured in spite of a quick release of the starting button D by an automatic momentary short-circuiting of the switch D by means of an auxiliary armature Q which has little inertia and is actuated quickly by stray flux to close contacts U, V. When the main armature P<SP>2</SP> is fully attracted the leakage flux disappears and the armature Q is released. Additional contacts may also be provided short-circuiting contacts adapted to be opened by overload coils so that the contactor completely closes in spite of operation of the latter.
Patent GB-766434-A (GB)
Title: Improvements in and relating to electrical recording and reproducing apparatus
IPC: G09B5/04
Filed: 1953-06-09
Abstract: 766,434. Magnetic recording and reproducing apparatus. JOHNSON, A. E., and CONWAY, T. D. Sept. 3, 1954 [June 9, 1953], No. 15834/53. Class 40 (2). In a magnetic recording and reproducing apparatus for language instruction a record tape has two tracks, means being provided to reproduce from both tracks, but to record on only one of the tracks. One track on the tape carries a permanent recording of words or phrases interspersed with a control signal, while the other is able to receive and reproduce a recording made by a person imitating the speech heard on the permanent record. Reproduction of the permanent, record is effected by a head 18, amplifiers 22 and 24, and loudspeaker 25. Erasing and recording or reproducing on the other track is effected by erazing head 19 and transducer 20, but the circuit of the latter is only completed when contacts 23b of a relay 23 are closed by the rectified current from the control signal on the permanent record track. A pair of contacts in parallel with contacts 23b energize a signal lamp to indicate that a recording may be made.
Patent GB-612490-A (GB)
Title: Improvements in shuttering for use in the manufacture of concrete structures
IPC: E04G11/18
Filed: 1946-05-27
Abstract: 612,490. Casting concrete walls. MACKIE, R. May 27, 1946, No. 15945. [Class 20(ii)] Shuttering for the manufacture of concrete cavity walls comprises panels 1 flanged at 2 along their vertical edges, uprights 3, 3A adapted to receive the flanged edges of the panels, means, e.g. keys 4, to hold the panels in place, separators 5 in the concrete receiving space to hold the uprights apart, and distance pieces 6 to hold apart the uprights 3A supporting the panels which form the faces of the cavity. Each panel consists of a wooden frame with sheet metal plating which projects on one face to form the flanges 2. The uprights 3 supporting the outer and inner panels are of T-section, presenting vertical flanges to the panels 1 and the keys 4. They may be linked together outside the shuttering during erection by metal strips. At the outer corners two T-section uprights at right angles are joined by angle pieces. At the inner corners the uprights are of angular crosssection. The uprights 3A are of rectangular section longitudinally grooved, and are erected in pairs with the grooves opposite and separated by the cruciform section distance pieces 6, the arms of which press the flanges 2 of the cavity panels against the uprights 3A. The distance pieces may be split longitudinally to facilitate withdrawal. The separators 5 may be pre-cast truncated cones of.concrete axially pierced for the tie-bolts 8. They are left embedded in the wall, and the tie-bolts replaced by bolts which engage wall ties inserted in the cavity. Recesses are cast for the heads of these bolts by placing blocks of wood between the separators 5 and the uprights 3. For a wall to be cast in one piece the cavity panels must be the full height of the wall to enable them to be withdrawn, but the inner and outer panels may be of any convenient height. A door or window opening may be made by a hollow rectangular core in the concrete receiving space. A string course or an ornamental dado may be formed by using panels configured as desired. The Provisional Specification mentions cams mounted on spindles for holding the panels in place, and cavity panels with rebated edges held together by hooks.
Patent GB-366399-A (GB)
Title: Improved pipe fitting and method of its manufacture
IPC: F16L41/02
Filed: 1931-06-01
Abstract: 366,399. Elbows, tees, and crosses. REIFURTH, O., Hardt, Germany. June 1, 1931, No. 15947. Convention date, July 29, 1930. Drawings to Specification. [Class 99 (i).] Pipe fittings formed by flash welding two halves divided in the plane of their axes are formed with upset ends either prior to assembly or after welding. It is stated that it has been found that simultaneously with the upsetting a compression of the texture of the entire workpiece is effected and so the wall thickness is increased.
Patent GB-146944-A (GB)
Title: Method of manufacturing cylinders for internal combustion engines and cylinders madethereby
IPC: F02F1/08
Filed: 1920-06-12
Abstract: 146,944. Dayton-Wright Co., (Assignees of Midgley, T.). June 30, 1919, [Convention date]. Moulds; mould materials; patterns.-In a method of making cylinders for internal combustion engines with fins of highly heat-conducting metal such as copper, the fins are first heated in a mould and the cylinder formed by casting ferrous metal in contact with the heated fins. The fins 12 are placed in grooves in an aluminium or steel pattern block 10 and are then placed in a box 15 and a mixture such as sand and linseed oil tamped into place round the fins. The pattern block is removed and the mould 20 thus formed is surrounded with a layer of paper or like 21 coated with a mixture of water glass and graphite and is then incorporated in a sand mould 27 provided with a number of recesses 26 and a core 28 is then inserted. Molten iron is then poured into the recesses to preheat the copper fins to a temperature approximating to that of the molten iron, the coated paper preventing union of the iron with the copper. After about five or ten minutes, molten iron is run into the space 29 to cast the cylinder on to the fins. The finished article is removed by breaking-down the mould. The mould and core may be baked before casting to prevent brittleness of the copper. In a modification, the preheating may be effected by incorporating electric heating units within the mould.
Patent GB-797600-A (GB)
Title: Method and machine for the manufacture of adhered double sheets which can be repeatedly separated and re-adhered
IPC: B42C7/00
Filed: 1955-06-03
Abstract: 797,600. Locally bonded flexible laminates. CADARIO, Z. R. V., and VEZZANI, S. R. June 3, 1955, No. 15978/55. Class 140. [Also in Group XV] A laminate comprising locally bonded, repeatably separable and re-adherable sheets of which at least one is transparent for use as a protective cover or album page protecting photographs, pictures, postage stamps, documents or like objects inserted between the component sheets, is formed by drawing a web from a supply reel across a table where spaced parallel continuous or discontinuous lines of adhesive are applied from a funnel by spaced distributing nozzles and, when the adhesive has set to a pressure-sensitive state, pressing by means of rollers a second web of slightly different width drawn from a second supply reel on to the adhesively striped web, whereafter the laminate is either cut into required lengths or rolled up for subsequent cutting. As shown, an opaque non-absorbent, preferably calendered, paper or paperboard web 2<SP>1</SP> is striped from nozzles 4<SP>1</SP> on a funnel 4 with a solution of a pressure-sensitive adhesive comprising nitrocellulose dissolved in a mixture of solvents including benzene, toluene, butyl alcohol, butyl phthalate, and amyl acetate, and a slightly wider transparent web 3<SP>1</SP> as of cellulose acetate is applied to the paper by a roller 9 after the adhesive has set, drying means (not shown) being provided if necessary. The two sheets are pressed into contact by driven mangle rollers 10 prior to being cut by a guillotine 14.
Patent GB-762701-A (GB)
Title: Improvements in or relating to breast pumps
Inventor: KUPFER ALFRED
IPC: A61M1/06
Filed: 1954-05-31
Abstract: 762,701. Breast pumps. VEB ELEKTROGERATEWERK SUHL. May 31, 1954, No. 16051/54. Class 81(2) A breast pump has the motor, pump, suction cup and receiving bottle combined as a unitary arrangement so that it may be self-applied by the patient. The electric motor 1 drives a crank 12 and thus actuates a piston 13 to provide pressure pulsations in a duct 18 leading to the glass suction cup 3. A side tube 21 in the wall of the cup 3 supports the bottle 4 but communication between the two is limited by a one-way flap valve formed by a rubber sleeve 23 covering a lateral orifice 22. This valve allows milk to flow into the bottle but, by closing during the suction phase, it reduces the volume which has to be evacuated and thus permits the use of a small capacity pump. The bore 18 extends through a plug member 17 which is rotatable in a sleeve 15 so that the bottle can always hang vertically irrespective of the angle at which the motor is held.
Patent GB-185838-A (GB)
Title: Improved composition for and method of production of hard tennis courts, skating rinks, paths, and the like
IPC: E01C13/06
Filed: 1921-06-10
Abstract: 185,838. Thompson, A. D., and Bird, H. A. June 10, 1921. Concrete paving; tar paving.-An elastic compound for the upper surface of hard tennis courts, skating-rinks, and like grounds, consists of ground cork, finely-cut rubber, and copper dust or filings mixed witfh cement and sand or with bitumen, tar, &c. and stone chippings. Chromium oxide viride may be added. The preferred proportions for the cement compound are:-Sand 28 gal., cement 12 gal., granulated cork 6 gal.,. shredded rubber “ gal., chromium oxide ¢ gal., and copper dust or filings 1/32 gal.; and for the bituminous compound :-sand 28 gal., stone chippins 3 gal., granulated cork 8 gal., shredded rubber ¢ gal., chromium oxide “ gal., copper dust or filings 1/32 gal., with sufficient tar or bitumen to bind the mass. The compound is laid on a foundation of clinkers or other rubble, or reinforced concrete, and is preferably in two layers, the lower coarse and the upper fine. For skating- rinks the court has raised edges and is flooded with water. According to one Provisional Specification, the compound consists of powdered slate, preferably green, mixed with crushed stone and brick, treated with dilute sulphuric acid or ammonium sulphate to prevent vegetable growth, and the desired shade of green is obtained by adding sulphate of iron or other iron salt before or after laying the compound. For harder courts, cement, powdered cork, leather, finely-cut rubber, or coco-nut fibre may be added. The lines may be marked by nailing white tape to laths embedded in the surface, or by inlaying a white mixture of the slate compound and whiting orplaster of Paris.
Patent GB-403888-A (GB)
Title: Process for the production of powder from ductile metals, especially magnesium
IPC: B22F9/04
Filed: 1933-06-07
Abstract: 403,888. Making metal powder. I. G. FARBENINDUSTRIE AKT.-GES., Frankforton-Main, Germany. June 7, 1933, No. 16366. Convention date, July 22, 1932. [Classes 83 (ii) and 83 (iii).] Filing-machines, rotary.- Ductile metals such as magnesium are reduced to powder by the use of strips of cotton, leather, rubber, or like material with projecting steel pins coiled on rollers. The metal in the form of a plate d is fastened to a slide rest and is moved by hand or automatically against a carding roller a, crank and lever mechanism n, o reciprocating the plate parallel to the roller axis.
Patent GB-1087377-A (GB)
Title: Device for separating nuts and fibres from a mixture thereof
IPC: B07B4/02
Filed: 1966-04-14
Abstract: 1,087,377. Pneumatic separators. GEBR. STORK & CO's APPARTENFABRIEK N.V. April 14, 1966 [March 8, 1966], No. 16384/66. Heading B2H. In an apparatus for separating palm nuts and fibres from a mixture thereof and comprising a substantially vertical drum 1 through which an air current flows from the bottom upwards and into which the mixture is introduced through an inlet at or, as shown at 3, adjacent the upper end of the drum, spaced apart vortex tubes 6 are arranged in the drum at a distance below the inlet 3 with their interior in communication, via a channel 7 and a regulating valve 8, with an air compressor (not shown), the tubes 6 having upwardly outflow apertures 9 for the escape of the compressed air in the direction of the arrows 12, and a multi-layered grid 13 being disposed under the vortex tubes. Air is sucked through the drum 1 by means of a fan (not shown). Each vortex tube has a streamline cross-section and lies with its longitudinal axis perpendicular to the longitudinal axis of the drum. The tubes are closed at one end and at the other end open into the channel 7. A slide 4 moveable in the direction of the arrow 5 serves to regulate the air velocity by varying the cross-section of the portion of the drum interior above the vortex tubes. The grid 13 may be composed of a number of bars which may rest with their ends in interchangeable plates on either side of the drum; the bars may be twisted. The drum is supported by legs 1a, 1b. In operation, the mixture entering through the inlet 3 is exposed to the upward air current which carries with it the loose fibres. The remainder of the mixture moving downwardly lands between the vortex tubes 6 which are so spaced as to permit passage of the biggest nuts. The air currents issuing from the tube outlets 9 loosen fibres still adhering to the nuts and permit them to be carried upwardly within the upwardly moving air current. Finally the nuts with any fibres still adhering thereto descend between the bars of the grid 13 colliding therewith so that the last remaining fibres get separated and are entrained in the air current, the cleaned nuts being finally discharged into a receptacle 14.
Patent GB-558380-A (GB)
Title: Improvements in or relating to lathes for profiling the interior of hollow bodies
IPC: B23Q35/18
Filed: 1942-11-19
Abstract: 558,380. Lathes. AKT.-GES. DER EISENUND STAHLWERKE VORM G. FISCHER. Nov. 19, 1942. Nos. 16398 and 16399. Convention dates, Nov. 15, 1941, and March 4, 1942. [Class 83 (iii)] A lathe for profile turning the interior of hollow bodies has a longitudinally - movable tool-holding bar, guided at opposite ends of the blank the relative transverse movements between tool bar and blank being controlled by a templet. In one form, Fig. 1, the blank 5 is rotated on a fixed axis by a motor 7 and the tool bar is guided at 4 in brackets secured to a vertical transverse slide 2 which carries a longitudinal slide 8 having an arm 9 to which the tool bar 17 is secured. The slide 8 also carries a templet 15 coacting with a fixed follower 16. As the slide 8 is traversed longitudinally by worm and rack gearing 12 operated by a motor 11 the tool is moved through the work and transverse movement corresponding to the templet is imparted to both slides 2, 8. In a modification, Fig. 3, a cross slide 18 carries guides 20 for the tool-bar 21 one end of which is formed as a rack so that it may be traversed by gearing 29, 27, change-speed gear box 31, and telescopic universal shaft 30 from the motor 24 driving the chuck 23. A longitudinal slide 32 moving on the frame has a slot 34 and is entrained by the tool bar, transverse movement being imparted to the bar through a templet 36 on the longitudinal slide coacting with a roller 37 on the transverse slide. In a further modification, a feeler moving over a fixed templet operates a valve in a hydraulic circuit to control the admission of fluid beneath a piston to impart movement to the transverse slide. In another modification, Fig. 5, the templet is mounted on a longitudinal slide 62 operated by a screw driven from the motor 64, the slide being connected at 72 to the tool bar which is guided at 75, 76 in fixed guides. In this case the chuck 77 is carried by the cross-slide 63 so that the transverse movement under templet control is imparted to the work through a bearing member 79, 80, enclosing the chuck. In a modification of this form the tool bar has a rack portion through which the longitudinal movement is imparted by gearing driven from the motor which also drives the chuck. In a further modification, Fig. 9, the templet is carried on a longitudinal screw-driven slide 102 secured through an arm 111 to the tool bar which is guided in fixed bearings 113, 114. The templet actuates a tracer 107 which operates a valve 106 in a hydraulic circuit including a pump 119, cylinder 122 actuating the piston of transverse slide 103 carrying the work through bearing members 118. A line 121 leads to the space below the piston and thence to valve 106 which controls the flow into the return conduit 123 in accordance with the position of the tracer controlled by the templet. A jockey roller may be included in the belt drive to the chuck to accommodate the changes in position of the work axis.