baber/WOPTO huggingface dataset:
Patent GB-1459434-A (GB)
IPC: H02K37/12
Filed: 1973-04-06
Abstract: 1459434 Electric motors SMITHS INDUSTRIES Ltd 8 April 1974 [6 April 1973] 16569/73 Heading H2A In an electric stepping motor having a p.m. rotor and a detent element arranged to hold the rotor stationary between pulses of the current fed to the stator coils, the detent element is located within the radius of sweep of the rotor about the rotor axis. The planar air gap motor shown is intended for use in a watch and includes axially magnetized bar magnets 10 on both axial sides of four stator coils 7, the coils being adhesively secured to plastics blocks 12 bolted to a brass base-plate 4. The detent element comprises a stainless steel strip 19 secured to one of the coils. The rotor drives output gearing 20. The location of strip 19 and its low permeability prevent magnetization of the strip by an external field, e.g. the earth's field, and thus ensure reliable detent action without interference with the stepping movement of the rotor.
Patent GB-382583-A (GB)
Title: Anchoring device for coke and chamber ovens
IPC: C10B29/08
Filed: 1932-06-11
Abstract: 382,583. C o k e ovens. STILL, C., Recklinghausen, Westphalia, Germany. June 11, 1932, No. 16599. Convention date, June 13, 1931. [Class 51 (ii).] The anchoring for coke and chamber ovens according to Specification 362,544 is modified by the provision of inclined struts 8 embedded in concrete blocks 11 and serving to transmit the load on the horizontal girders 6, 7 to the ground. The struts 8 are connected to the booms 16 of the girders 6, 7 by gusset plates 12 to which are riveted vertical tension members 9, the latter being secured at their lower ends to beams 17 inserted in the projecting ends 5 of the foundation plate 4. The girders 6, 7 are made of iron lattice-work and are rigidly connected to one end of the oven battery by a tie-bar. The connections between the buckstays 1 and the booms 16 comprise springs 19, each of which, in the form shown in Fig. 4, is secured at one end to a bracket 25 on a buck-stay and bears, at the other end, against a nut 22 on a screwed spindle 21, the latter being attached to the boom 16 by a nut 23. A modification is described in which a single spring 19 is provided for a pair of adjacent buck-stays 1. The compression of the springs 19 is adjusted by the nuts 22, 23, and the arrangement is such that, to compensate for the greater horizontal thrust on the coke-bench side of the battery, due to operation of the discharge ram 10, the springs 19 on this side are under greater compression. The same result may also be obtained by providing stronger springs on the coke-bench side. On account of the unsymmetrical loads on the girders 6, 7 due to the difference in compression of the springs, the girders 7 are either of weaker construction or their load-transmitting supports 8, 9 are spaced farther apart.
Patent GB-467300-A (GB)
Title: Improvements in furnace construction
IPC: F27D1/00
Filed: 1936-06-15
Abstract: 467,300. Furnace walls. DETRICK CO., M. H. June 15, 1936, No. 16674. Convention date, June 15, 1935. [Classes 51 (i) and 51 (ii)] In a furnace wall comprising a number of independently-supported superposed sections the lowermost' tile courses in each section are anchored against inward displacement to the brackets 16 supporting that section, one of the uppermost courses is anchored to the brackets of the superjacent section, while intermediate courses are anchored by the intermeshing engagement of the tiles, which as shown, are of the form described in Specification 432,526. The brackets 16 are hooked on to horizontal members 11 of the framework and are correctly positioned by abutment between the shoulder 16c and the flange 11c. Shelf portions 16d take the weight of the wall sections, and laterally projecting lugs 16e, 16f engage the shoulder portion of the tiles to prevent inward displacement. Tilting of the lower course tiles is prevented by rear lugs 16g. In building a section base tiles 17 of less width than the wall are first laid on the shelf portions 16d and on these are supported the courses of tile forming the sections, the uppermost course consisting of narrow tiles extending from the base tiles 17 of the next section to the face of the wall. As shown, the three lowermost courses and an upper course R are interlocked with the lugs 16e, 16f of the brackets 16. The gaps between the sections are sealed by a compressible refractory material 18.
Patent GB-930918-A (GB)
Title: A process for protecting natural and synthetic rubber
IPC: C08K5/405
Filed: 1961-05-08
Abstract: Natural and synthetic rubbers are protected against ageing by incorporating therein the monomeric reaction product of an N,N1-dihydrocarbon-substituted p-phenylenediamine with an isocyanate or isothiocyanate.  Many examples of such additives, which are generally diaminodiureides, diureides or monoaminomonoureides, or the corresponding thio-ureido compounds, are given, and the tris-(aminoureide) from N,N1-di-sec-butyl-p-phenylenediamine and tris-(4-isocyanatophenyl)-thiophosphate is also described.  The additives may be incorporated in the rubber as a solution in an inert solvent such as benzene, toluene, xylene, chlorobenzene, chloroform, carbon tetrachloride, ethanol or acetone (for isothiocyanate products).ALSO:The invention comprises the monomeric reaction product of an N,N1-di-hydrocarbon-substituted p-phenylenediamine with an isocyanate or isothiocyanate.  Many examples of such products are listed, which are presumably (a) diaminodiureides, from reaction of 2 mols of the phenylenediamine with 1 mol diisocyanate, (b) diureides, from reaction of 1 mol phenylenediamine with 2 mols monoisocyanate or (c) monoaminomonoureides, from reaction of 1 mol phenylenediamine with 1 mol monoisocyanate, or the corresponding thio-ureido compounds when isothiocyanates are used.  The trio-(amino-ureido)-thiophosphate is also prepared from 3 mols N,N1-di-sec-butyl-p-phenylenediamine and 1 mol tris-(4-isocyanatophenyl)-thiophosphate.  In general the N:N1-substituents may be aryl, alkyl or cycloalkyl and the other reactants may have the formula R(N=C=X)y in which R is arylene, aryl, cycloalkylene, cycloalkyl, alkylene, alkyl, arylphosphate or arylthiophosphate, X is O or S and g is an integer 1, 2 or 3; in some examples the isocyanates and isothiocyanates are substituted additionally by alkoxy groups.
Patent GB-312997-A (GB)
Title: Centrifugal sludge separator
IPC: B04B1/18
Filed: 1929-05-31
Abstract: 312,997. Nyrop, A. June 4, 1928, [Convention date]. Density separators, discharging.-A centrifugal separator drum has coniform walls provided at the maximum diameter with one or more sludge outlets, the opening and closing of which are controlled by the differential action between the hydrostatic pressure produced in a cushion of liquid formed between relatively movable parts of the drum, and an oppositely directed pressure produced by springs, or by fluid in a pressure chamber. The shaft 1, Fig. 1, supports a hub 2 attached to the outer bottom bowl 3; an inner bowl part 8 with a hub 7 is firmly attached to the upper part 13 of the bowl by a nut 33, and this can move axially relatively to the bowl 4 to which it is connected by springs 21. A discharge opening 30 in the upper part 13 is normally closed by the projecting ring 26 of the lower part 3, and the springs 21 tend to keep the parts in this position. The liquid to be treated is directed into the opening 32 and separated liquids are discharged from the openings 15, 16, while the sludge remains in the space 23. When sufficient sludge has accumulated a small quantity of liquid is passed into the opening 31 from which it travels to the space 11, where the pressure it exerts lifts the inner bowl 8 and. the part 13 thereby allowing the sludge to be discharged through the opening 30. This action is assisted by liquid which flows from the bowl through the bye-pass 56 as the sludge deposit increases. The lifting of the part 8 uncovers the opening 5 so that the liquid is discharged from the space 11, and the bowl 8 drops for the operation to be repeated. In a modification a filter is employed instead of the discs 29. In the modification shown in Figs. 3 and 4 the lower bowl part 3 can move axially .relatively to the other parts to open the joint 30 for the sludge discharge. The compression chamber 11 is filled with liquid from the pipe 55 and this lifts the part 3 to hold the joint 30 closed. A spring- pressed piston 47 is arranged at the end of a channel 39 which is supplied with liquid from the bowl through the passage 58 as the sludge deposit increases. The pressure of this liquid eventually lifts the piston 47 to uncover the port 48, and the liquid from the chamber 11 then lifts the piston beyond the port 49. 'The liquid in the chamber 11 and the pipe 39 then escapes, the bowl part 3 drops and the sludge discharges through the open joint 30. The escaping liquid from the port 49 rocks the shield 50 to operate an electric switch 52 to close the circuit of a time relay 54 which operates to close the supply pipes 40, 55 and to open them again after a given time interval. A gutter may be provided near the centre of the hub, so that the rising liquid in the drum will overflow into it and then pass to the pipe 39.
Patent GB-402495-A (GB)
Title: Improvements in ink ribbon mechanism
IPC: B41J35/30
Filed: 1932-06-14
Abstract: 402,495. Ink-ribbon mechanism. ROYAL TYPEWRITER CO., Inc., 2, Park Avenue, New York, U.S.A.-(Assignees of Dowd B. J. ; 385, North Quaker Lane, West Hartford, Connecticut, U.S.A.) June 14, 1932, No. 16838. Convention date, Sept. 14, 1931. [Class 100 (iv).] Ink-ribbon mechanism particularly for use in duplicating- arrangements for typewriters, of the kind described in Specification 402,484, comprises ribbon spools mounted on a horizontal shaft secured to a frame travelling with the carriage, the spools being normally retarded lightly by brakes which are arranged outside the hubs of the end spools, and are adapted on operation of the ribbon-feeding mechanism to retard further and, preferably, lock the spools. When only one spool is employed, the brakes are arranged on opposite sides of the hub. In the arrangement shown in Figs. 3 and 4, the spools L have hubs 17 revoluble on a shaft 13 secured to a frame K which is connected to the carriage B and runs on a rail 8. The spools are separated by spacing-discs 14 having key-hole slots engaging flats on the shaft. The outer spacing-disc engages a brakecollar 22 abutting on a spring 23 provided with an adjusting-screw 21. The inner spacing-disc engages a brake-disc 24 abutting on a lever 30 which is fulcrummed on the frame K and engages a cam 32 on a shaft 33 connected to linkage 36, 37 operated by the line-spacing and ribbon-feeding lever. Before completion of the ribbon-feeding movement, the cam is rocked and the disc 24 is displaced to increase the braking- pressure and, preferably, lock the spools, thereby causing the ribbons to be tightened during the final part of the feed-movement.
Patent GB-126896-A (GB)
Title: Improvements in Process for producing an Extract of Proteolytic Enzymes.
IPC: A61K35/63
Filed: 1918-10-15
Abstract: 126,896. Kanegafuchi Boseki Kabushiki Kwaisha. Oct. 15, 1918. Addition to 106,504. Medicines for internal use.-The process of preparing an extract of proteolytic enzymes from silkworms &c. described in the parent Specification is modified by immersing the insect material in a glycerine solution or salt solution, the subsequent operations being as described in the parent Specification; other antiseptics may be added to the solution prior to evaporation.
Patent GB-1372829-A (GB)
Title: Machines for cleaning floor coverings
IPC: A47L11/34
Filed: 1973-04-09
Abstract: 1372829 Floor cleaning machines FILTER QUEEN CORP Ltd 9 April 1973 [25 May 1972] 16863/73 Heading A4F [Also in Division F2] In a carpet cleaning machine a drive coupling between a drive shaft 126 and a rotary brush 14 comprises inner and outer coaxial and axially spaced elements 140, 144, connected together by generally axial straps 150 and to the drive shaft 126 and the brush 14, respectively, and a spring 152 biases the element 148 away from the element 140. In use when there is a high frictional resistance to rotation the straps 150 move towards horizontal positions compressing the spring 152 so that a skirt 34 surrounding the brush 14 engages the carpet and reduces the frictional resistance to obviate stalling of the brush. The lower edge of the skirt 34 is convexly curved about two diametrically opposite points so that the machine can be rocked to assist the freeing of the brush 14 from obstacles on the carpet preventing its movement. The shaft 126 is driven via reduction gearing 110, 112, 114, 116 by a turbine 62 operated by suction applied by a vacuum cleaner to an outlet 72 of the turbine chamber 68. The element 140 is coupled to the shaft 126 by a spring 160 carried by a pin 134 and extending through slots 162 in the hollow shaft 126 into a recess 161 in the element 140. The drive coupling 140, 144 may thus be removed by pulling it off the shaft 126 against the action of the spring 160. The brush 144 is attached by screws 159 to the element 144. A foamable carpet cleaning liquid 56 stored in a reservoir 54 is fed to the back of the brush 14 via a cable operated valve 52 and flows over ribs 166 to sponges 170 secured to the peripheral portion 163. The sponges 170 are alternately compressed and expanded by movement over steps 168 on the inner wall of the machine housing whereby the cleaning liquid is foamed before being applied to the carpet.
Patent GB-604271-A (GB)
Title: Improvements in and relating to vibrators for hoppers, bins and the like
IPC: B06B3/00
Filed: 1943-10-14
Abstract: 604,271. Oscillating machines. LOCKERS (ENGINEERS), Ltd., and LOCKER, J. R. Oct. 14, 1943, No. 16868. [Class 35] [Also in Groups II and XVII] An electromagnetic vibrator applicable to bins, hoppers and like containers for the purpose of promoting the flow of powdered or granular materials or of causing them to pack down in packing operations, comprises a U- shaped frame 1 which is capable of resonance and is secured at widely-spaced points 5 to the bin, &c. to be vibrated. The two-coil electromagnet 8 is secured to the base and the armature 21 is carried by springs 18 secured across the open end of the frame. 24 is a counterweight. The vibration of the armature is transmitted by the springs 24 and frame I to the bin &c. to which the frame is secured. The vibrator preferably is attached to the bin &c. at an angle both to the vertical and the horizontal. Attachment is effected by the channel members 5 which are bolted directly to a table or a flat-sided bin, &c., or to shaped brackets attached to a curved bin, &c. Specification 566,493 is referred to.
Patent GB-230341-A (GB)
Title: Improvements in or relating to means for preventing slipping of driving wheels of tractors
IPC: B60B15/10
Filed: 1924-07-15
Abstract: 230,341. Sillery, J. July 15, 1924. Slipping, attachments to wheels for preventing. -The ordinary road wheel carries a series of radially movable ground grippers 1 which are adapted, when required, to project into the ground beyond the ordinary ground gripping devices on the wheel. The grippers 1 are movable radially in bearings in rings 13, 17 secured to the side of the road wheel 8. The inner ends of the grippers are provided with rollers 16 or with shaped ends adapted to engage a cam 4 which is adjustable from operative to inoperative positions by a lever 25 and screw gearing. The grippers are pulled inwards out of action by springs.
Patent GB-582689-A (GB)
Title: Improved construction of apparatus for washing crockery and other domestic utensils
IPC: A47L15/16
Filed: 1944-09-05
Abstract: 582,689. Washing crockery &c. KOCHMANN, F. Sept. 5, 1944, No. 16922. [Class 138 (i)] A machine for washing crockery &c., has a base divided into three compartments 2, 4, 3 containing respectively washing and rinsing liquids and a pump 7 with its driving electric motor 5. The pump outlet pipe 13 leads into an upper washing chamber 14 where it is connected to an oval endless pipe 10 having upstanding perforated pipes 11 between which the plates &c. are placed. To each of the tanks 2, 4 are connected two pipes, one near the top and one near the bottom, the lower ones 25, 26 leading to the pump through a three-way valve 23, operated from outside the box, and the upper ones. 21, 22 leading through a second three-way valve 18 to a drain 17 in the floor of the washing chamber. Electric heaters in the compartments 2, 4 are operated by the same switch as the motors. In a modification, the valves are operated by the spindle of a rotary switch adapted, as the valves are actuated, to control the operation of the motor and heaters in a proper sequence.
Patent GB-822498-A (GB)
Title: Polyethylene films
Inventor: MACPHERSON JOHN FARQUHARSON
IPC: C08K3/00
Filed: 1956-06-01
Abstract: A process for making non-blocking films of polythene comprises embodying in the polythene, before it is formed into film, between 0.10 and 5% of one or more finely-divided inert and water-insoluble materials, chosen from inorganic oxides, carbonates, silicates, aluminates and silico-aluminates.  Suitable materials are silica, alumina, triferric tetroxide, calcium and magnesium silicates, calcium and magnesium carbonates and natural earths, e.g. kaolin, and these may be incorporated into the polythene mechanically, e.g. by rolls, kneaders or extruders, or by introduction during the polymerization of ethylene, e.g. as a slurry or gel in an inert liquid such as white spirit.  The particle size is preferably between 20 millimicrons and 50 microns.  Specification 676,559 is referred to.
Patent GB-515590-A (GB)
Title: A device for cutting metal work-pieces of any surface by a burner
IPC: B23K7/00
Filed: 1938-06-07
Abstract: 515,590. Dividing by fusion. I. G. FARBENINDUSTRIE AKT.-GES. June 7, 1938, No. 16966. Convention date, June 5, 1937. [Class 83 (iv)] In cutting metal work pieces of any surface shape to any form by a burner guided horizontally along the outline of the cut, a cam plate for adjusting the elevation of the burner is arranged to move together with the burner in a direction-perpendicular to the longitudinal direction of the cam plate so that the vertical position of the burner is adjusted according to the thickness of the work at any point. The burner 5, which may be mounted in a slewing bracket or, as shown, on a compound carriage 2, 3, traversed in a horizontal plane by a pair of rollers 8 or a magnetic roller engaging a cam plate 6, is secured to a support 18 vertically movable in a guide and counterbalanced by a weight 20 and having a roller 16 guided along the edge of a plane cam plate 14, which is secured to a carriage 13 transversely movable on a longitudinally adjustable carriage 12. The edge of the cam plate 14 corresponds to the projection of the upper surface of the work piece 10 to be cut. Rollers 17 on the carriage 3 engage opposite sides of the cam plate 14. The burner support 18 may be connected to a lever 21 operating a rheostat resistance 22 for controlling the speed of the motor according to the elevation of the burner. If the surfaces of the work at opposite sides of the cut are in different horizontal planes, a different cam plate 14 may be used for the return movement of the burner such plate being moved' automatically into position by a device actuated by impact with the carriage 13. If the cam plate 14 is sufficiently lorig the carriage 12 may be omitted. In a modification one or more cam plates 14 may be arranged parallel with the carriage 3 and fixed to the carriage 12, the carriage 13 being omitted.
Patent GB-985488-A (GB)
Title: Improvements in electrical scanning circuits
Inventor: RUSSELL ALEXANDER
IPC: G08C15/06
Filed: 1962-05-03
Abstract: 985,488. Electric selective signalling systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 1, 1963 [May 3, 1962], No. 17026/62. Heading G4H. A plurality of thermocouples A, B. . . , Fig. 2, are sequentially connected to a recorder by a chain of relays A, B. . . arranged to become energized singly in succession in response to clock pulses "sync", "drive" and "latch" applied to terminals A, B and C. The arrangement is such that each complete scan of the thermocouples is initiated by depression of a key PB1 and by making appropriate plug connections the cycle can be reduced by any number less than 50. Two rotary switches RS1 RS2 are provided whereby any selected one of relays A, B. . . can be energized to connect the associated thermocouple to the recorder.
Patent GB-900309-A (GB)
Title: Roof-support for mine workings and the like
Inventor: DUNCAN ANGUS WELLESLEY
IPC: E21D15/44
Filed: 1958-05-29
Abstract: 900,309. Mine roof supports. MINING ENGINEERING CO. Ltd. May 22, 1959 [May 29, 1958], No. 17120/58. Class 20 (2). A mine roof support comprises an hydraulic reservoir 10 and an hydraulic accumulator 13 separated by two axially-yieldable tyres 11, 12 and a piston 25 and cylinder 26, connected by valves and so arranged that yielding of the support under roof pressures charges the accumulator 13 and compresses an air-filled tyre 14 therein. The tyres 11, 12 are clamped to a ring 17 and to annuli 18, 19 on the reservoir and accumulator respectively. The tyres 11, 12 may be replaced by flexible bellows. The support is provided with a water inlet valve 21 and an air inlet valve 35. Excess roof pressure causes the tyres 11, 12 to yield, contracting the piston 25 and forcing water from its cylinder 26 into the tyres 11, 12 via a spring-valve 27. At the same time water is forced from the tyres 11, 12 into the accumulator 13 via a valve 29 compressing the air in the tyre 14. An overload relief valve 23 is provided which is also operated manually to collapse the prop. To reset the prop, a valve 28 is operated manually to release the water under pressure in the accumulator 13 into the cylinder 26 to extend the piston 25 and thus the support. The support is preset by operating a valve 31 to release water from the accumulator 13 into the tyres 11, 12. Reference has been directed by the Comptroller to Specification 835,142.
Patent GB-570221-A (GB)
Title: Improvements in the mountings of tanks on tank vehicles
IPC: B60P3/22
Filed: 1943-10-19
Abstract: 570,221. Tank vehicles. THOMPSON BROS. (BILSTON), Ltd., and MEREDITH, J. W. Oct. 19, 1943, No. 17143. [Class 108 (i)] In tank vehicles, the tanks A are secured on the chassis frame member B by a sheet metal band C passing round the tank and under and over longitudinal tubes e<1>, e<2> and e, a triangular section wooden block F being placed between the tank and the band c, The band passes under the middle tube e and over the others ; plates E carry the tubes, and the lower tube e is secured to chassis B by a V-bolt G engaging in a groove at the end of the tube. The band c is in two parts and lugs d at their ends are drawn together by bolts D. A wooden block is placed between the chassis frame member B and the band c where it passes under the tube e. In a modification, the tube e contains a rubber bush mounting for a pin carried by a bracket bolted to the chassis.