baber/WOPTO huggingface dataset:
Patent GB-202956-A (GB)
Title: Improvements in and relating to electric vibratory devices
IPC: H02M7/36
Filed: 1923-04-24
Abstract: 202,956. British Thomson - Houston Co., Ltd., (Assignees of Cheeseman, R. T., and Amsden, R. 1).). Aug. 24, 1922, [Convention date]. Commutator switching-arrangements.- A vibrating switch for use as a rectifier comprises a rectangular magnet 1 with poles 5, 6 separated by a gap, and a T-shaped armature adjacent and slightly overlapping the gap. in the form shown in Figs. 1 and 3, the head 9 is carried by blades 8 of magnetic material which are secured to light leaf springs 10 mounted on a support 7. The blades 8 are surrounded by a solenoid 14 carried by a stem 15 which is adjustably secured to the support 7 by screws 17. In operation, the armature is caused to in synchronism with the alternating current to be rectified by energizing the solenoid 14 from that source of alternating current, the rectified-current circuit being completed at the desired intervals by the engagement of a contact 18, mounted on a leaf spring 24 secured to the vibrating member, with an adjustably-mounted fixed contact 19. Additional leaf springs 26, 27 bear on the spring 24 to prevent enatttering or undesired vibrations of the contact 18. The duration of closure of the contacts 18, 19 can be varied in order to rectify any desired portion of the alternating-current wave by tilting the magnet 1. This is done by loosening the screws 21, 22 and turning tho screw 39, the head of which is eccentrically mounted on its stem. The moment of make and break may be adjusted by a longitudinal adjustment of the magnet 1 by means of another cam screw 40, or by adjusting the position of the solenoid 14. In a modification, a predetermined period of contact. is obtained by inclining the armature head 9 with respect to the poles 5, 6. In another arrangement the armature is placed outside the magnet 1, and is set in vibration by alternating-current magnets placed adjacent to, but not surrounding, the stem of the armature. In another modification, Fig. 5, the contact 58 on the armature is brought into make,and-break relation with a contact 60, carried by a resilienty-mounted magnetic element 61 which is adjacent the poles 5, 6 and under magnetic tension.
Patent GB-373353-A (GB)
Title: Improvements in or relating to systems of ship propulsion
IPC: F01K7/02
Filed: 1931-04-15
Abstract: 373,353. Propelling ships. CARR, L. H. A., Oakleigh, Cambridge Road, Hale, Cheshire, WALKER, G. W. HIGGS-, Whitehall, Kingswinford, near Dudley, Staffordshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 15, 1931, No. 11198. [Class 114.] In a plant comprising a reciprocating engine 1 which drives a propeller shaft 2 and an exhaust or mixed pressure turbine 3 driving a shaft 5 which is geared by double-reduction gearing 6 .. 9 to the shaft 2, an electromagnetic coupling 10, 11 connects the first and second stages of the gears. The gear wheel 9 is secured on a hollow shaft 12 and connected to the shaft 2 by means of a torsionally resilient coupling 13. Exhaust steam from the engine 1 passes either to the turbine 3 through a valve 18, or during reverse drive to a condenser 4 through a valve 17. These valves are interlocked so that valve 18 cannot be closed until valve 17 is open and vice versa. The member 10 of the coupling is wound with coils supplied with direct current controlled by a switch which is operated from the valve 17, so that the latter is opened before the current is cut off to disconnect the coupling. Member 11 of the coupling comprises a rotor wound with phase windings connected through slip rings to external variable resistances. The rotor may be of the squirrel cage type. Direct current may be supplied to the windings of the rotor 11 as soon as the speed of member 10 is nearly synchronous with that of 11. Valves 17, 18 are interlocked with the reversing gear of the engine 1.
Patent GB-1109813-A (GB)
Title: Method of moulding and attaching structures to film material
Inventor: CALVERT WILLIAM LAMONT
IPC: B29C43/00
Filed: 1966-03-15
Abstract: 1,109,813. Moulding structures on to film material. UNION CARBIDE CORPORATION. 15 March, 1966, No. 11229/66. Heading B5A. Structures are attached to thermoplastic film material, e.g. spouts to film bags for packaging milk, &c., by a process comprising the following steps; (a) clamping an area of the film between an upper annular member 16 and a lower member 10 having a cavity 12, the base of which is formed by a ram 14, (b) introducing a heated plastic mass 24, through the aperture in the upper member, on to the film, the temperature of the mass being sufficient to melt the film and allow the mass to fall into cavity 12, (c) compression moulding the mass to the required shape and at the same time fusing it to the film by an upper plunger 20, and (d) retracting the plunger 20 and the member 16 and raising ram 14 to eject the finished article. The working material is preferably a polyolefine e.g. polythene, polypropylene or a copolymer or mixture thereof.
Patent GB-418069-A (GB)
Title: Improvements in or relating to the manufacture of rubber derivatives
IPC: C08C19/14
Filed: 1933-04-18
Abstract: A solution of chlorinated rubber is brought into contact with water heated to a temperature sufficient to evaporate the solvent, and the precipitate is removed from the place of its precipitation as quickly as possible.  The solution may be flowed on to the surface of moving water, or it may be introduced into the bottom of vessel, whereupon the chlorinated rubber rises to the surface, or it may be led below the surface of the water which is agitated. The solvent may be recovered.  Wetting or emulsifying agents may be added to the precipitating liquid, or the solution may be emulsified prior to precipitation.  The chlorinated rubber may be stabilized by treatment with alkali.  If hydroxides are employed, ordinary temperatures are sufficient; with weaker alkalies, a temperature of 40-45 DEG  C. up to the boiling point of the solution is necessary.  The stabilization may be performed prior to precipitation, or the alkali may be added to the precipitation, or the alkali may be added to the precipitating bath.  Numerous examples are given of which the following is typical-2 litres of 18,8 per cent solution of chlorinated rubber are emulsified with 30 gms. calcined soda in 1/2 litre of water, and stirred for 6-8 hours at 80 DEG  C.  The stabilized chlorinated rubber is precipitated in flowing water at 90-95 DEG  C., washed and dried at 60 DEG  C.
Patent GB-807437-A (GB)
Title: Magnetic sound recording and reproducing apparatus
Inventor: MILTON ARTHUR JOHN
IPC: G11B15/43
Filed: 1954-04-20
Abstract: 807,437. Operating clutches. WALTER INSTRUMENTS Ltd. April 20, 1955 [April 20, 1954], No. 11393/54. Class 80 (2). [Also in Group XXXVIII] The power transmission to the take-up reel of a magnetic tape or wire sound recording and reproducing apparatus embodies a clutch which comprises a driving pulley 16, a driven disc 22 secured to the reel spindle 14, and an intermediate resilient disc 26 to the top surface of which are secured equispaced cork studs 30 and a cork ring 31 of less axial length than the studs, and to the bottom surface of which is secured a felt ring 32, the discs 22, 26 being capable of limited axial movement relative to the pulley 16. By means of a control lever 41 which slides longitudinally a clutch arm 35 bearing a cam 33, the reel spindle may be disposed in three positions of vertical adjustment in which the clutch is disengaged, or transmits light load due to engagement of studs 30 with the pulley 16, or transmits full load, Fig. 6, by flexing of the intermediate resilient disc 26 so that ring 31 also engages the pulley 16. Specifications 807,435 and 807,436, [Group XXXVIII], are referred to.
Patent GB-842911-A (GB)
Title: Improvements in or relating to radiant heating ovens
Inventor: HOGARTH GRAEME MASON
IPC: D06C7/00
Filed: 1957-04-08
Abstract: 842,911. Electric ovens. GENERAL ELECTRIC CO. Ltd. April 2, 1958 [April 8, 1957], No. 11429/57. Class 39(3). [Also in Group XII] An oven for the heat treatment of a continuously moving material 2 has radiant heating means, e.g. electric elements 1, with reflectors 3, a screen 4 being provided between the material and the elements to shield the material should its movement stop. The screen 4 comprises a number of slats 5, e.g. of aluminium, stainless steel or the like, mounted on a supporting frame so that they can pivot about longitudinal axes from the position shown in the left hand side of Fig. 2, to a position transverse to the direction of radiation as shown in the right hand side of Fig. 2, where the slats overlap and form a continuous screen, being operated by small crank arms 8 connected to a common operating rod 9 the longitudinal movement of which enables the slats to be rotated through 90 degrees. The rod 9 may be operated by a falling weight (not shown), held in position by an electromagnet 10 which is de-energised when the drive to the material stops.
Patent GB-1219184-A (GB)
Title: Process for the preparation of catalysts
IPC: B01J37/00
Filed: 1968-03-08
Abstract: 1,219,184. Shaped catalyst particles. RUHRCHEMIE AG. 8 March, 1968 [1 April, 1967], No. 11443/68. Heading B1E. Shaped catalystic compositions are made by mixing a particulate catalyst comprising a metal and/or metal oxide with graphite and a polymer of an aliphatic compound, the polymer having a molecular weight in the range 3,000- 2,000,000 a melting point in the range 40- 150C. and a particle size of not less than 1Á with not more than 1% of the polymer particles being of a size larger than 1000Á, and thereafter forming the mixture into shaped bodies. Specified polymers are polyolefins and polyethyleneglycols. Examples describe the preparation of catalysts containing Ni, MgO, SiO 2 , graphite and polyethylone glycol.
Patent GB-1118077-A (GB)
Title: Process of reducing metal oxide to metal
IPC: C21B13/04
Filed: 1967-03-10
Abstract: 1,118,077. Reducing metal oxides. FIERRO ESPONJA S.A. March 10, 1967 [March 18, 1966], No.11448/67. Heading C7D.  In a process for the gaseous reduction of metal oxides in a plurality of reactors the reducing gas is passed through a body of metal-bearing material in a reactor to cool the material and is then passed through one or more reactors to reduce further bodies of the material. The cooling stage is carried out in two sequential steps in the first of which the gas feedrate to the cooler is essentially the same as that to the reducing stage and in the second of which a portion of the gas leaving the cooler is cooled and recirculated to accelerate the cooling process. The process is exemplified by the production of iron sponge from ferrous ores. In the Fig. steam and natural gas are reacted in a reformer furnace 18 to form a reducing gas containing Co and H 2  and sensible heat which is used in waste heat boiler 42. The gas is then quenched in tower 56 and led from the top thereof to the cooler reactor 10 where, in the first cooling step, it is partially cracked to deposit carbon on the iron sponge product before passing through a quench tower 66, in which water is removed therefrom, and a furnace 74 to the second reducing reactor 12. In the second cooling step a part of the gaseous product of the cooler after passing through the quench tower is led via conduit 130, compressor 128 and conduit 134 back to the feed conduit 62 to cooler 10. Some pre-heated air is introduced into the feed for reducing reactor 10 as described in Specification 2, 900, 247. After passing through reactor 12 the gas is again water quenched and heated prior to passing into the first reducing stage reactor 14 whence it is again quenched in tower 122 and then used as a furnace fuel in conduit 38.
Patent GB-1071878-A (GB)
Title: An automatic machine tool
IPC: B23G1/02
Filed: 1965-03-18
Abstract: 1,071,878. Screw-cutting lathe. WARNER & SWASEY CO. March 18, 1965 [June 4, 1964], No. 11525/65. Heading B3T. A screwing lathe 10, Fig. 1, comprises a bed 11, a head stock 12, a cross-slide tool turret 16, and a tool holder 21 guided by a bar 54b, and secured to a bar 23 which is slidable axially, and pivotable about its axis, in bearings 39, (26), secured to the bed. The bar, and therefore the tool, is moved axially during a screwing operation by a lead screw 42 which co-operates with a follower (43) carried by an arm 44, secured to bar 23. Arm 44 can be pivoted about bar (54b) to disengage the lead screw and follower, by a handle 48, Fig. 3 (not shown). Bar 23 is urged towards a stop 55, by a rod and spring (51), (52), Fig. 2 (not shown). A spring- urged roller (70), Figs. 3 and 5 (not shown), is carried in arm 44 and engages with a cam path 71, Figs. 2 and 4 (not shown), so that arm 44 is pivoted at the end of the screwing operation, to disengage lead screw and follower 42, 43, and allow the arm to be moved axially of the workpiece by spring (52). Spring (61) is compressed during the screwing operation and held in this position until the pivoting of arm 44 at the end of the operation by a latching means (81), (82).
Patent GB-253672-A (GB)
Title: Improvements relating to alarm apparatus for self-propelled vehicles
IPC: H01H21/26
Filed: 1925-05-05
Abstract: 253,672. Vigo, G. May 5, 1925. Retractive switches.-An alarm-circuit switch, adapted to be operated by sidewise movement of the foot upon one of the ordinary control pedals of a car, comprises a plate 2 attached to the pedal 1 by a bolt 8 and block 9, and a contactactuating member 3 which projects above the plate 2 so as to be readily movable by the driver's foot. In the construction shown in Figs. 2 and 3, the member 3 is fixed to an earthed metal spring 4 adapted to engage a fixed insulated contact 6 and so complete the alarm-circuit. In the form shown in Fig. 5, the member 3 is fixed to a pivoted lever 4<1> which has a contact arm movable between the forked parts of an insulated contact-piece 6<11> so that movement of the member 3 in either direction completes the circuit. The arm 4<1> is held in its central position by a spring 12. One of the forks of the contact 6<11> may be dispensed with.
Patent GB-551951-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H04Q1/446
Filed: 1941-09-15
Abstract: 551,951. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., FAIRLEY, F., and WALSH, R. Sept. 15, 1941, No. 11782. [Class 40 (iv)] [Also in Group XL] An A.C. signal receiver particularly for ringing and dialling signals in a telephone system comprises means for comparing the received energy in a predetermined range or ranges with that in other ranges and for causing or preventing the generation of local oscillations for operating the receiving device when the energy ratio is above or below certain values. A Wheatstone bridge in the feed-back circuit of a normally quiescent valve-oscillator is used for the comparison, the energy being applied to resistances slowly responsive to temperature variations. The arrangement shown in Fig. 3 comprises an amplifying valve VI and a normally quiescent oscillator V2 coupled by a network comprising frequency discriminators N1, N2 and a bridge W forming the feedback circuit of oscillator V2 the output circuit of which is tuned by condenser C1 and feeds the receiving device R. The bridge comprises ordinary resistances R1, R2 and resistances T1, T2 dependent on temperature and heated by the outputs of N1, N2. The bridge is adjusted so that normally the feedback is negative or not sufficiently positive for V2 to oscillate. The desired signal band passing N1 changes the resistance of T1 to swing the feedback sufficiently positive for V2 to oscillate ; the undesired band passing N2 has the opposite effect and reduces the possibility of V2 being brought into an oscillating condition. Valve V2 may also be backcoupled to V1 and networks N1, N2 arranged to pass the frequency of the oscillator to such extents that (1) the circuit locks in a state of oscillation, or (2) the tendency to oscillation is reduced so that the circuit oscillates intermittently due to the slow action of the resistance T1, T2, or (3) the feedback is unaffected but the period of restoration of the circuit to normal, when the signal ceases, is prolonged. In a modification, the resistances T1, T2 may be directly heated by the output of valve V1, the resistances being shunted by suitable discriminating networks. A modification, Fig. 4 (not shown) comprises a single valve circuit functioning in a similar manner. Specification 489,204 is referred to.
Patent GB-1356461-A (GB)
Title: Method of forming structures from microcrystalline collagen
IPC: C08H1/06
Filed: 1971-04-28
Abstract: 1356461 Collagen fibres and films FMC CORP 28 April 1971 [5 June 1970] 11925/71 Heading B5B [Also in Division C3]  Extruded or moulded bodies are obtained by extruding or moulding an aqueous composition comprising 10-90% by weight of a waterinsoluble, ionizable partial salt of collagen having a bound acid content of 50-90% of the theoretical stoichiometric value, at least 1% by weight of the partial salt having a particle size under 1 micron optionally comprising a plasticizer such as glycerine and a reinforcing material, e.g. natural or synthetic fibres, microcrystalline cellulose, mineral silicates, polyamides, polyesters, and/or collagen cross-linking agents. Filaments, tubes, sheets and films may be obtained, e.g. by passing the composition through heated zones and extruding and then stretching the extrudate by about 100% after leaving the extrusion orifices by virtue of which increased tensile strengths are obtained.
Patent GB-713586-A (GB)
Title: Improvements in tabs for the printing plates of address-printing machines
Inventor: OSTWALDT ERICH
IPC: B41L47/02
Filed: 1952-05-12
Abstract: 713,586. Index tabs. ADREMA MASCHINENBAU GES. May 12, 1952; No. 11950/52. Class 16 [Also in Group XVI] A tab for an address printing plate comprises two limbs 1, 2, formed by folding a resilient sheet metal strip about an edge fold, united at the head portion 3 of the tab, one limb 2 being arched at the foot portion 4 and bearing with its free end resiliently on the other limb 1 so as to form an opening-out spring flattenable by lateral pressure. The foot portion of the arched limb is provided, at the junction with the head portion, on both sides with a notch 5 the lower border of each of which is outwardly bent to provide a plate gripping hook 7 releasable by pressing the two limbs 1, 2 together. Alternatively, both limbs. may be arched at their foot portions only, Fig. 5 (not shown).
Patent GB-350653-A (GB)
Title: Spring base or filling for mattresses, cushions, upholstered furniture, or the like
IPC: A47C27/07
Filed: 1930-04-16
Abstract: 350,653. Spring upholstery. HœSER, A., 13, Ringelstrasse, Barmen, Wuppertal, Germany. April 16, 1930, No. 12018. Convention date, April 20, 1929. [Class 52 (iv).] A spring assembly is formed by engaging the coils of adjacent vertical upholstery springs with one another and connecting the end coils by wire links or bridges i, preferably S-shaped in plan and arched in elevation, the joints f, f<1> with the springs being thus kept below the plane of the surface.
Patent GB-393064-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/30
Filed: 1932-04-27
Abstract: 393,064. Vacuum cleaners. HOOVER, Ltd., Perivale, Greenford, Middlesex.- (Hoover Co. ; North Canton, Ohio, U.S.A.) April 27, 1932, No. 12062. [Class 8 (i).] The nozzle of a vacuum cleaner is provided with a tunnel 6, the interior of which is supplied with atmospheric air. The edges 7 of the tunnel are adapted to enter the pile of the carpet and the tunnel is reciprocated in the direction of motion by the crank pin 19 through the links 22, 24, 25, the crank being driven by the fan motor through gearing. In a modification the tunnel is reciprocated vertically. In a further modification the tunnel is reciprocated by electromagnetic means.
Patent GB-645686-A (GB)
Title: Improvements in or relating to apparatus (or devices) for producing compressional waves of high frequency, particularly for sub-aqueous signalling
IPC: G01S1/72
Filed: 1946-04-03
Abstract: 645,686. Audible and like signalling apparatus. STEVENS, A. H. (Submarine Signal Co.). April 3, 1946, No. 10275. [Class 118 (ii)] [Also in Group XXXIX] In a device for transmitting a beam of compressional waves, comprising a plate and elements projecting from the back of the plate to form a vibratory system in which the nodes of vibration in said elements are near the plate and lie in the same plane, the rear portion of the plate is extended to form a flange which lies in the nodal plane and supports the plate. As shown in Fig. 1, the plate 1 which preferably has a thickness less than one-eighth of the wave length of the transmitted frequency carries tubular members 3, 4, 5 having their end portions located in cylindrical magnetic gaps formed by members 10, 11, 12, 13, 15 and energizing coils 16, 17, 18. Alternating current corresponding to the frequency to be transmitted is fed to coils 20, 21, 22 located on the inner surfaces of the outer polepieces forming the gaps which may be arranged to extend over half the length of the tubes. The coils may be fixed to the outer surfaces of the inner polepieces or, as described in connection with Fig. 5 (not shown), two fixed coils may be located in each gap. The plate 1 has a rearwardly extending shoulder 8 and a flange 7 whose central axis C-C coincides with the plane 6 of the nodal points of the tubes 3, 4, 5 in association with the plates. In a modification, Fig. 2 (not shown), the plate may be undercut adjoining its junction with the tubes so that the nodal plane lies slightly within the rear surface of the plate which is coplanar with the rear surface of the supporting flange. The device may be actuated magnetostrictively, Figs. 3, 4 (not shown). Specification 641,640, [Group XXXIX], is referred to.
Patent GB-278614-A (GB)
Title: Improvements in coat hangers
IPC: A47G25/40
Filed: 1927-05-06
Abstract: 278,614. Nymberg, G. W. May 6, 1927. Coat-hangers. - A folding coat-hanger is provided with springs for retaining the arms in the extended or folded positions, or both. Fig. 6 shows a form in which telescopic arms 5, pivoted to a central part 3 are acted upon by a spring- pressed member 19, the arms being retained both in their operative and inoperative positions. In the form shown in Fig. 9, a blade spring 27 acts directly on the ends of the arms and engages the pivot pins 4 which ride in slots 22 in the middle part 3. In another form, springs are arranged transversely of the arms and their ends engage projections or recesses in the member 3. Fig. 12 shows a form in which a spring 12 is mounted on the shank 2 of the hook and engages the ends of the arms 5. When the arms are collapsed, projections thereon engage a recess in the hook, the spring 12 permitting relative movement between the hook and arms. The arms may be undivided, or telescopic as shown, comprising sections 5 - - - 8, Fig. 6, sliding one within the other and provided with interengaging projections 10 and recesses 9 to hold them in their extended positions.
Patent GB-644837-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C99/00
Filed: 1948-05-03
Abstract: 644,837. Reels. FEST, A. May 3, 1948. No. 12154. [Class 99(ii)] [Also in Group XXI] A cylinder 2 containing fire-extinguishing chemicals and having enlarged ends 3 to form a hose-reel is mounted on shafts 5 journalled in angularlybent arms 7 whereby the cylinder may be guided over the ground or rotatably supported therefrom. For fire-extinguishing details see Group XXI.
Patent GB-109084-A (GB)
Title: Improvements in and relating to the Manufacture of Beverage Extracts.
Inventor: KELLOGG JOHN LEONARD
IPC: A23F5/44
Filed: 1916-08-28
Abstract: 109,084. Kellogg, J. L. Aug. 28, 1916. Coffee substitutes.-Grain or starch-bearing material, such as wheat and rye, is cooked by direct steam until the starches are well dextrinized, and is then dried, roasted, mixed with a roasted mixture of cooked caramelized sugar and bran, and extracted with water, the extract being dried in vacuo.