baber/WOPTO huggingface dataset:
Patent GB-307832-A (GB)
Title: Blade ring for radial steam- or gas-turbines and method of manufacturing the same
IPC: F01D5/04
Filed: 1929-03-05
Abstract: 307,832.. Aktiebolaget Ljungstr÷ms Angturbin. March 14, 1928, [Convention date]. Addition to 298,900. Blades, fixing. In radial-flow steam &c. turbines in which the dovetailed roots 13 of the blades 10 are inserted in transverse slots 14 in the blade rings 15, as in the parent Specification, the slots 14 pass across the face of the rings. The slots may be at an angle to a radius, and may be tapered. The blade roots may be secured by upsetting the lips 18. In the application to diverging blades, Figs. 9 and 10, the roots are assembled in the slots of the inner ring 16, and the outer ring 15 is then brought into position. The slots in the ring 15 in this case are larger than the blade roots, and locking is effected by driving in wedges 30. The slots may be inclined or tapered and the wedges may be inserted from the inside.
Patent GB-557393-A (GB)
Title: Improvements relating to filters
IPC: B01D29/41
Filed: 1942-05-28
Abstract: 557,393. Filters. LOWE, W. H. May 28, 1942, No. 7267. [Class 46] In a filter in which the filtering elements consist of sheets of wire gauze supported on perforated plates, the outer surface of each plate is formed with a number of curved ribs alternating with grooves and a relatively small number of comparatively large apertures extend through the plate in the grooves. The ribs may be of volute, wave or other form. The dished plate shown, for use in a filter as described in Specification 553,169 is formed with volute ribs 44 of rounded cross-section alternating with grooves, increasing in depth and decreasing in width towards the centre of the plate, and apertures 46 opening into the grooves. Alternate ribs stop short of the hub 26. One plate of each pair is made with right-hand, and the other with left-hand, volutes so tha t the grooves follow the direction of flow of the liquid. The wiregauze discs 24 are soldered to the hub and periphery of the plates. Aluminium or aluminium alloy plates are coated, as by spraying, with zinc or copper to. facilitate the soldering or brass rings 48, 50 are embedded in the plates during casting, The plates are strengthened by four radial ribs 52 merging into an annular flange 54 with apertures 56 between the ribs.
Patent GB-782290-A (GB)
Title: Improvements relating to the testing of electric insulated cables and wires and to apparatus therefor
Inventor: GOODING FRANCIS HERBERT
IPC: G01R31/02
Filed: 1955-03-11
Abstract: 782,290. Electric tests. BRITISH INSULATED CALLENDER'S CABLES, Ltd. March 11, 1955, No. 7270/55. Class 37. A method of testing for imperfections in the insulation of an electric cable comprises moving the cable through a tubular electrode at a high voltage, an imperfection in the insulation resulting in high-frequency currents in an oscillatory circuit causing a response in a highfrequency detector, wherein the cable is moved through liquid having an electrical conductivity small compared with that of metals and large compared with that of dielectric materials, and the electrode, which is in conductive connection with the liquid adjacent thereto, is disposed away from the places at which the cable enters and leaves the liquid, whereby each portion of the insulation is subjected to an increasing potential difference as the portion moves from the place of entry to the electrode, the potential difference at the place of entry being such as to avoid corona thereat. In Fig. 1, the cable is drawn from a drum 24 through a tube comprising two insulating portions 2 and the tubular electrode 4 and is wound on to a. drum 26. Earthed reservoirs 6 are fitted at each end of the tube, and together with the tube are filled with tap water. The cable core is earthed at 28. A low voltage power supply 12 is connected to a transformer 10 through a regulator 18, and the high voltage secondary is connected to the electrode 4, a voltmeter 20, and through a filter 16, 17 to a detector 14. A potential gradient in the water is set up along the tube from the electrode 4 to either end, and thus the potential difference across the cable insulation increases from the point of entry to the electrode 4. Any highfrequency oscillations due to an imperfection are rendered audible by the detector 14. Once an imperfection has been detected, the high voltage supply is connected to a search loop, Fig. 2 (not shown), which is passed over the cable to locate the imperfection more accurately, both longitudinally and circumferentially.
Patent GB-1496037-A (GB)
Title: Fuser apparatus for electrostatic reproducing machine
IPC: G03G21/00
Filed: 1975-02-21
Abstract: 1496037 Controlling electro-photographic  copying machines XEROX CORP 21 Feb 1975 [22 Feb 1974] 7339/75 Heading G2H The heat fixing device of the machine comprises a heatable fuser roller and a pressure roller which latter is urged into and out of contact with the former in response to control signals at the start and completion respectively of a copying cycle, and are urged out of contact in response to a signal indicating a fault condition; the control means including synchronous and asynchronous logic sections for providing said control signals, said synchronous logic section being responsive to signals provided in timed relation to successive imaging cycles of the machine and said asynchronous logic section being responsive to signals which are not in timed relation with imaging cycles of the machine. The power supplied to a heating element within the fuser roll is also controlled. A suitable logic circuit is disclosed.
Patent GB-979046-A (GB)
Title: Improvements in or relating to fluid pressure regulators
Inventor: SINNOCK HARRY JAMES
IPC: G05D16/06
Filed: 1960-03-02
Abstract: 979,046. Valves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 23, 1961 [March 2, 1960], No. 7366/60. Heading F2V. A pressure regulator comprises a fluid chamber 7 having inlet and outlet ports 5, 10, a reference pressure bellows 3 secured in the chamber, and a valve 9 to close the outlet port under the control of the bellows, the valve and bellows having equal effective areas subjected to fluid pressure whereby the sensitivity of the regulator is independent of changes in pressure at the inlet port after the valve 9 has been closed by the bellows. The bellows is provided with an internal spring 3D and guides 11 and is connected by a rod 8 to the valve 9 which is damped by a piston 15 in an oil-filled chamber 17. Adjustment of the controlled pressure is effected by a screw 1. If the port 5 is connected to a vacuum pump, pressure falls in the chamber 7 to expand the bellows 3 and close the valve 9; further pressure changes in the chamber now act equally on the valve and bellows so that the valve is lifted only when an increase in pressure occurs in the port 10. The upper surface of the valve 9 may be arranged to engage the seat.
Patent GB-1492664-A (GB)
Title: Method of testing a steel composition
IPC: G01N33/20
Filed: 1975-02-21
Abstract: 1492664 Testing steel composition SUMITOMO METAL INDUSTRIES Ltd 21 Feb 1975 [21 Feb 1974 (2)] 7387/75 Heading G1B In the manufacture of steel plate at least 15 mm thick, the suitability of the melt for use is determined by measuring the manganese and phosphorus concentration in the molten steel to be cast, calculating the product of the manganese and phosphorus concentrations and comparing the figure obtained with 0.60/f, where f is the previously determined segregation factor for the casting practice concerned, the melt being considered suitable if the concentration product figure is not larger than 0.60/f. Apparatus for automatically carrying out the determination comprises analyzing means for determining the manganese and phosphorus concentration in the molten steel, a multiplier for calculating the product of the concentrations determined, a comparator for comparing the product so obtained with 0.60/f and adapted to emit a warning signal when the product is larger than 0.60/f, and warning means adapted to be put into operation on receipt of the warning signal.
Patent GB-491434-A (GB)
Title: Improved process for rendering materials moth-proof, and materials treated thereby
IPC: A01N41/04
Filed: 1938-03-10
Abstract: Material such as wool, hair, fur, and feathers is rendered mothproof by treatment with a substituted aryl sulphonic acid ester of the general formula R1-SO2-OR2 where R1 is a halogen substituted benzene radical and R2 is an aryl radical which may be substituted by halogen or alkyl groups.  The compounds may be made from the corresponding acid chlorides, e.g. chlorobenzene- and dichloro-benzene sulphonic acid chlorides, and aromatic hydroxy compounds, e.g. cresols, chlorophenols, naphthols, dihydroxy-diaryl-sulphones, dihydroxy-diphenyl-sulphoxides, hydroxy and dihydroxy-diphenyls. The esters may be applied in solution in organic solvents such as alcohol and acetone.  The following esters are particularly specified: the p-chlorobenzene sulphonic acid ester of p-chlorophenol, p-cresol, o-chlorophenol, p-amyl-phenol, or b -naphthol; the di-(p-chlorobenzene sulphonic acid ester) of dihydroxy-diphenyl, dihydroxy-diphenyl-sulphone, or diphenol-isatin; 3, 4-dichlorobenzene sulphonic acid ester of o-chlorophenol; 2, 5-dichlorobenzene sulphonic acid ester of p-chlorophenol.
Patent GB-469199-A (GB)
Title: Surgical appliance for lancing boils or the like
IPC: A61B17/34
Filed: 1936-03-13
Abstract: 469,199. Lancing-appliances. RUTHERFORD, S. March 13, 1936, No. 7583. [Class 81 (ii)] A surgical lancing-appliance has the character of a surgical stitching needle of semicircular or bow shape, but has a cutting edge a formed along its inner curve from the point. The cutting edge extends to a point c near the butt end d which is flattened or otherwise shaped to enable it to be grasped by forceps or other conventional form of needle holder. The back edge e of the appliance is for the most part of uniform thickness.
Patent GB-453514-A (GB)
Title: Improvements in or relating to printing ink especially suitable for identifying laundry articles
IPC: C09K11/06
Filed: 1935-03-12
Abstract: Colourless substances, which become fluorescent when exposed to radiant energy such as ultra-violet light, and which are used in inks for marking fabrics to be subjected to laundering-operations, are prepared by (a) heating dehydrothio - toluidine with steam under pressure; (b) heating together tetrachorethane, naphthalene, and anhydrous aluminium chloride, and purifying by vacuum distillation.
Patent GB-1524493-A (GB)
Title: Ntriiodobenzoylaminoacyl polyhydroxy amines
IPC: A61K31/165
Filed: 1977-02-24
Abstract: 1524493 X-ray contrast compositions MALLINCKRODT INC 24 Feb 1977 [12 March 1976] 7845/77 Heading A5B [Also in Division C2] X-ray contrast compositions contain a compound of formula wherein X and Y are each a lower alkoxy, hydroxy-(lower alkoxy), lower alkoxy-(lower alkoxy), lower acylamino, lower acylamino- (lower alkyl), lower acylamino-(lower acylamino), hydroxy-lower acylamino, N-(lower alkyl)-lower acylamino, lower alkylsulfonamido, N-(lower alkyl)-lower alkylsulfonamido, 3, 3-bis (lower alkyl)-ureido, lower perfluoroacylamino, carbamyl, N-(lower alkyl) carbamyl, N-(hydroxy lower alkyl) carbamyl, N-(polyhydroxy lower alkyl) carbamyl, N, N- bis-(hydroxy lower alkyl) carbamyl, N, N-bis- (polyhydroxy lower alkyl) carbamyl, N, N- di-(lower alkyl) carbamyl, lower alkoxy-(lower acylamino), lower alkoxy-alkoxy (lower acylamino), hydroxy or hydroxy lower alkyl groups, A is an amino substituted lower alkanoic acid coupler and is a monovalent residue of a polyhydroxy amine, wherein N is a nitrogen atom, R is a hydrogen atom, a lower alkyl, hydroxylower alkyl or polyhydroxy lower alkyl group and Z is a polyhydroxy lower alkyl or oxopolyhydroxy lower alkyl and a suitable carrier structure.
Patent GB-113209-A (GB)
Title: Improvements in the Art of Heating Wood, and other Cellulose-containing Materials.
Inventor: HERBEIN GEORGE WINTERS
IPC: B27K5/00
Filed: 1917-06-01
Abstract: 113,209. Herbein, G. W. June 1, 1917. Pencils.-In order to enable pencils to be readily sharpened, the wood used is treated in a bath of paraffin or paraffin and resin at a temperature between 340‹ and 400‹ F. The wood may be stained by an alcoholic solution of an aniline dye prior to treatment.
Patent GB-649283-A (GB)
Title: Switch mechanism for use on gramophones
IPC: G11B17/02
Filed: 1948-03-16
Abstract: 649,283. Switches held set and freed mechanically. BOER, J. J. DE. March 16, 1948, No. 7916. [Class 38(v)] [Also in Group XXXVIII] In an electrically driven gramophone, a motor switch, operated by the movement of the pick-up arm 1, has a toggle-switch lever 12 pivoted about a fixed point 13 and connected to a torsional biassing spring 19 anchored to a bracket 16 at a point such that when the switch is closed the switch lever 12 is at or near its position of unstable equilibrium, so that very little pressure by an actuating member 11 on the pick-up arm shaft 8 is required to trip it.
Patent GB-766521-A (GB)
Title: Improvements in the packing of rolled products
IPC: B65D75/68
Filed: 1955-03-18
Abstract: 766,521. Packages. STEFFEN, M., STEFFEN, O., and STEFFEN, C., MAEDER-, [trading as STEFFEN & CIE, O.]. March 18, 1955 [March 19, 1954], No. 7934/55. Class 94(1). A roll of paper or other material 1, Fig. 1, is provided with a transparent wrapper 2 of less width, and a strip 3 is inserted beneath the wrapper and projects therefrom at one or both ends, but not beyond the ends of the roll, to provide a tongue or tongues 3a which may be gripped and pulled to tear the wrapper. In a modification, Fig. 5, the wrapper extends to the ends of the roll and is formed with a recess 4 at either end to expose the end 3a of the strip.
Patent GB-195382-A (GB)
Title: An improved process and apparatus for the manufacture of zinc
IPC: C22B19/00
Filed: 1923-03-20
Abstract: 195,382. Dunford & Elliott (Sheffield), Ltd., and Pehrson, A. H. March 21, 1922, [Convention date]. Distilling zinc. - In the extraction of zinc by means of an electric furnace of the kind described in Specification 178,443 and comprising a preliminary treatment chamber, a reducing chamber, and a condenser, the preliminary treatment chamber being situated at a higher level than the reducing chamber and communicating therewith through an intermediate stationary chamber, the charge passes from the tapered rotary preliminary heating chamber 2 to the stationary chamber 4 the bottom of which is approximately on a level with the bottom of the opening leading to the rotary reducing chamber 10, the charge being fed from the chamber 4 to the reducing chamber 10 by a feed screw 7 or other gas-tight means. Any unsmelted residues such as lead or iron may be withdrawn from the reducing chamber 10 through an opening 11. The zinc vapour and carbon monoxide formed pass into a rotary condenser 13, from which the liquid zinc is tapped off. The condenser 13 has a watercooled tapering extension, zinc collected therein being led back to the condenser. In a modification the reducing chamber is made stationary. The Specification as open to inspection under Sect. 91 (3) (a) describes also modifications in which the reducing chamber is provided with an extension, which is also heated by electrodes to enable the reducing action to be prolonged; the carbon-monoxide from the chamber 10 may be conveyed by a water-sealed system cf pipes 14, 15 to burners 5 for wholly or partially heating the drum 2; and gas-tight packing is provided between a stationary reducing chamber and a rotary condenser. This subject-matter does not appear in the Specification as accepted.
Patent GB-728101-A (GB)
Title: Means for feeding a tool
IPC: B24B47/04
Filed: 1953-03-24
Abstract: 728,101. Grinding - machines ; trueing. DAVIS, Ltd., S., and DARBY, W. Feb. 1 1954 [March 24, 1953], No. 8019/53. Class 60' Means for feeding a tool, such as a trueing diamond or crushing roller 10, Fig. 1, in one direction across a work-piece and in operative contact therewith and for returning it clear of the work-piece in readiness for repeating the operative traverse includes a pivoted cam member 29 and a cam member 38 slidable parallel thereto, the member 29 being supported from a stationary part 36 so as to be engaged between the member 38 and a follower 25 connected to the tool whereby the latter will be fed dependently on the integration of the engaged surfaces of the two cam members. The tool 10 is journalled on a shaft 11 held by blocks 12 in V-grooves on a lever 13 pivoted at 16 on a slide 15 which is reciprocated on a slideway 17 by the mechanism described in Specification 727,534. Two springs 27 bias the lever 13 and thus hold the follower, which is pivotally mounted at 26, in engagement with the cam member 29. During the operative traverse from left to right the tool is first fed into engagement with the work-piece by an inclined surface 43 and then held in engagement by a surface 45 until a second inclined surface 46 is reached. At this point, one of a pair of adjustable screws 41 on the slide 15 displaces the slidable cam member 38 to the right as shown in Fig. 4 and thus permits a heel 29a on the pivoted cam member 29 to be urged by the springs 27 into a recess 47 so that the tool makes its return traverse clear of the work-piece, the member 38 being returned to its original position at the end of this traverse by the other screw 41. Surfaces 48 and 49 enable the member 29 to be pushed back to its original position by the member 38 and also co-operate with the surface 46 to retract the tool from the work-piece at a faster rate than they were fed into engagement. In the application to crush dressing, the feed of the roller 10 is delayed until it overlaps the wheel 44 so as to avoid crumbling of the wheel edge.
Patent GB-213757-A (GB)
Title: Device for preventing splashing of mud or such like from motor wheels while in motion
IPC: B60B7/00
Filed: 1923-03-21
Abstract: 213,757. Coia, J. A., and Donati, L. March 21, 1923. Mud-guards rotating with wheels.-A disc B of aluminium or other light material is bolted to the hub and carries a rubber splash guard A which is secured by bolts between the disc and a stiffening strap B'. Reference has been directed by the Comptroller to Specifications 6994/14, 159,320, 163,738, 169,124, and 181,045.
Patent GB-466369-A (GB)
Title: Improvements in or relating to electrical systems of remote control
IPC: H04Q9/04
Filed: 1936-03-17
Abstract: 466,369. Master control of motors. GENERAL ELECTRIC CO., Ltd., ALLSOP, G., and SMART, N. C. March 17, 1936, No. 8034. [Class 38 (iii)] [Also in Group XXXVIII] In a haulage system for mines wherein the driving motor may be stopped and restarted by signals transmitted from different sections of the haulage shaft, means are provided for preventing restarting of the motor from any section other than that from which it has previously been stopped. As shown, the haulage shaft is provided with a pair of signalling wires which include resistances at different sections SEC1 ... SEC4 and marginal relays W .. Z at the control point of the driving motor. If it is desired to stop the haulage rope at a particular section, the signalling wires at that section are brought together and a number of relays in the group W .. Z depending on the amount of resistance included in the circuit is energized. Corresponding relays AW .. AZ, having progressively retarded operating times, pull up but only that relay adjusted to the particular current value remains operated, A corresponding relay in the group BW .. BZ is operated and motor control relay MC is operated to its " stop " position over a circuit including contacts b<2>, c<2>, the motor circuit being opened at contact mc<2>. Relay MC also prepares relay F which pulls up in series with the operated relay in the group BW ... BZ when the signalling wires are separated, the operated relays in the groups W .. Z, AW .. AZ also being released. Relay F at contacts f prepares the relays A, B which are operated upon the receipt of two impulses for restarting the motor. At the termination of the first impulse relay B pulls up in series with relay A and prepares the circuit of the second winding of relay MC. Upon the receipt of the second impulse, the relay is operated to its second position and the motor is restarted. The contacts of the relay groups AW .. AZ, BW .. BZ are so arranged that restarting of the motor from a section other than that from which the motor is stopped is prevented. A push button DS is provided at the controlled point to facilitate the restarting from any section after the motor is stopped from a particular section. A thermostat TH is provided to prevent incorrect operations of the relays by incorrect signalling. If, after a " stop " signal, a single pulse only is received, the thermostat is energized and after a predetermined period causes release of the relays pulled up by the single pulse. Lamps M . . . P are provided for indicating the location of the signalling section. A relay ST also effects stoppage of the motor and prevents restarting in the event that the signalling wires are permanently connected. An alarm bell AL is rung irrespective of the section transmitting signals.
Patent GB-706457-A (GB)
Title: Improvements in electric adding and subtracting devices
IPC: G06F7/50
Filed: 1952-03-28
Abstract: 706,457. Digital electric calculating-apparatus. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. March 28. 1952 [March 29, 1951], No. 8046/52. Class 106 (1) In an electric adding and subtracting device for binary numbers A, B represented by seriesmode pulse trains, the trains are applied via terminals 11, 12 in phase-displaced relationship, e.g. owing to delay networks 7, 8, to the input 5 of the first of two cascade-connected bi-stable trigger stages I, II forming a pulse counter to which resetting pulses T<SP>3</SP> are periodically applied, reading pulses T<SP>1</SP> are applied to gating means 14 which is opened by stage I, if actuated (representing " 1 "), to deliver a pulse to the output (sum or difference) channel 23, and to gating means 17 similarly controlled by stage II to deliver "carry" pulses R to channel 13 which pass through delay means 9 and are applied to the input of stage I during the following digit period, and reading pulses T' are applied (during subtraction) to gating means 24 similarly controlled by stage I and delivering a triggering pulse to stage II. As shown, the pulses T<SP>2</SP> are first passed through gate 28 which is opened for subtraction by switching means such as sign-control trigger stage 30. A digit period # is divided into six intervals, the delay networks 7, 8, 9 having e.g. values 3#/6, #/6, 2#/6, respectively, and pulses being applied to the trigger stages and gates in the following order : R, B, T<SP>2</SP> A, T<SP>1</SP> and T<SP>3</SP>. A detailed circuit diagram is given. The present invention may convert an adding device as described in Specification 706,436 into an adder and subtractor.
Patent GB-361238-A (GB)
Title: Improvements in or relating to revolving stages
IPC: A63J1/00
Filed: 1931-03-17
Abstract: 361,238. Revolving stages. WINTERFELD, E., 8, Marbacher Strasse, Wilmersdorf, Berlin. March 17, 1931, No. 8177. [Class 132 (i).] Revolving stages are made in sections which can be readily assembled and taken apart and when assembled are adapted for fixing to a permanent stage. A plate 2, Fig. 2, is bolted to the permanent stage and carries a hollow vertical shaft forming a bearing for a rotating element 5 formed of two circular plates between which are bolted sectorshaped frames 11. The frames are formed of angle iron bars and one radial edge carries projections 14 engaging metal straps 15 on the adjacent edge of the neighbouring sector. A central strengthening bar 12, Fig. 3, is provided on each frame which is supported on rollers 16 running on segmental rails 18. The stage is driven by a pinion engaging a circular rack formed by the outer edges of the assembled sectors. Additional segmental frames may be provided for varying the size of the stage.