baber/WOPTO huggingface dataset:
Patent GB-787363-A (GB)
Title: Cement treating composition
IPC: C04B41/47
Filed: 1955-06-27
Abstract: A method of curing concrete and of treating concrete forms required for re-use comprises applying to the concrete surface a composition formed by dispersing 0,1-5,0 of a water insoluble soap and 0,1-5,0 of water in a mixture of 10-40 of petrolatum and 50-89,8 of a petroleum distillate of a flash point above 170 DEG F.-all figures being percentages by weight.  Distillates specified are cycle oils (which are defined), synthetic tower bottoms, 170 furfuryl extract, and a mixture of dodecylbenzene intermediate and polydodecylbenzene overhead.  Soaps specified are zinc palmitate, cobalt naphthenate and the stearates of aluminium, lead, iron, copper, zinc, calcium, barium, magnesium and manganese.
Patent GB-812141-A (GB)
Title: Improvements in or relating to air-cooled dynamo-electric couplings, dynamometers and brakes
Inventor: ROSS ERIC GRAHAM
IPC: H02K49/04
Filed: 1955-06-27
Abstract: 812,141. Cooling dynamo-electric brakes, couplings and dynamometers. WELLMAN SMITH OWEN ENGINEERING CORPORATION Ltd. June 27, 1956 [June 27, 1955], No. 18547/56. Drawings to Specification. Class 35. That the slots of the second magnetic member are unwound characterises the air-cooled dynamo-electric coupling, dynamometer or brake disclosed in Specifications 671,314 and 784,099 which are referred to. Reference has been directed by the Comptroller to Specification 586,576.
Patent GB-1206664-A (GB)
Title: A leakage-free sealing arrangement
IPC: G01N27/447
Filed: 1968-04-19
Abstract: 1,206,664. Seals. INCENTIVE RESEARCH & DEVELOPMENT A.B. 19 April, 1968 [20 April, 1967], No. 18571/68. Heading F2B. [Also in Division C7] A seal for providing electrical insulation between two liquids along the outer wall of a rotary tube 14 comprises two sealing rings 27, 28 spaced apart to form a chamber 29a having inlet and outlet ducts 29, 31 connected to a dry gas source for providing dry gas circulation through the chamber. An electrophoresis fluid is circulated through a glass or quartz tube 14 which is rotated by gearing 23-26 in a bath of cooling water, the leakage of electric current from the electrophoresis fluid to the cooling water being prevented by air which is dried by silica gel contained at 34 in the inlet duct. Any leakage of fluid past the sealing ring 27 is absorbed by the air stream.
Patent GB-121462-A (GB)
Title: Improvements in Shafts for Multistage Centrifugal Compressors and Pumps.
Inventor: GRAEMIGER BENJAMIN
IPC: F04D29/04
Filed: 1918-11-13
Abstract: 121,462. Graemiger, B. Dec. 10, 1917, [Convention date]. Shafts and shafting.-The shaft of a centrifugal pump is reduced in diameter between the seats 7, 8 of adjacent impellers 2, 3 and the reduced surface forms part of the inlet channel 10 to the second of the said impellers.
Patent GB-871993-A (GB)
Title: Improvements relating to stereophonic sound recording systems
Inventor: PERCIVAL WILLIAM SPENCER
IPC: H04S1/00
Filed: 1957-06-13
Abstract: 871,993. Stereophonic recording systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 27, 1958 [June 13, 1957], No. 18623/57. Class 40 (4). In a system of the type described in Specification 871,992 a reference signal is recorded in addition to the audio-frequency signal and the control signal, and is employed to modify the reproduced control signal so as to compensate for the effect on the control signal of irregularities in the recording or reproducing process. In the case where the control signal is recorded as an amplitude modulation of a carrier of, say, 15 kc/s., the reference signal may consist of a second carrier wave differing in frequency from the first by 500 c/s. and maintained at constant amplitude. This reference, or pilot, signal is used to control the gain of an amplifier in the reproducing system so as to maintain the main carrier wave at constant amplitude and thus to compensate for the falling off in amplitude from the outside to the inside of a disc record. Alternatively the reference signal may consist of a periodic pulse of peak amplitude and of about 0.5 m.sec. duration impressed upon the control signal at intervals of 500 m.secs. The audiofrequency signal is suppressed for the duration of each pulse and the peak value is employed to control the amplifier gain. If the control signal is recorded as a frequency-modulated carrier wave of mean frequency 15 kc/s., a 1% variation in motor speed of the turntable will result in a variation of 150 c/s. in the control signal carrier frequency. This variation is reduced by recording a reference signal differing from the main carrier mean value by 1 kc/s., and reproducing the control signal as a frequency modulation centred on the frequency difference of 1 kc/s. A 1% variation in motor speed thus produces only a 10 c/s. variation.
Patent GB-1026665-A (GB)
Title: Improvements in or relating to electrical switch mountings
IPC: H01H9/06
Filed: 1963-05-10
Abstract: 1,026,665. Switch cases; retractive switches. BLACK & DECKER Ltd., and N. J. BLIGHT. May 8, 1964 [May 10, 1963], No. 18683/63. Heading H2B. A switch is non-rotatably mounted in a handle, e.g. of a portable tool, by a mechanical plug and socket type coupling. The tool handle comprises a first part (not shown) fixed to the tool body and providing a boss or solid plug on which is mounted the socket 2, having a non-circular transverse section of a frame 1 carrying the switch 4. A detachable second part (not shown) of the handle carries a projection which ensures that the switch is maintained in its correct position (Fig. 4, not shown). The plug and socket parts may be interchanged, i.e. the frame 1 then carries a plug part. The switch is actuated by a lever 6 pivoted at 7 and normally biased " off" by a spring (not shown). A pin 8 may temporarily lock the switch " on," until a second depression of lever 6 permits a spring 9 to return pin 8 to its normal position. An insulating wrapping 13 protects the conductor wires to the switch (Figs. 3, 4, not shown).
Patent GB-676583-A (GB)
Title: Improvements in or relating to pit props
IPC: E21D15/54
Filed: 1950-07-26
Abstract: 676,583. Pit props. DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. July 26, 1950 [July 29, 1949], No. 18686/50. Class 20(ii). The head plate 1 of a pit prop 4 supports a roof girder 13 by means of a bracket 11, in which the girder 13 is longitudinally movable and which bracket can be detached from the head plate while the head plate is clamped against the mine roof. The girder 13 is forced by wedges 14 against the roof. The bracket 11 is attached to the webs 5 by a pin 12. The head plate 1 comprises symmetrically arranged pairs of webs 5 at right-angles to one another. In supporting the roof at the coal face a distance piece 8 is pivoted by a pin 9 between a pair of the webs 5 and a further head is fixed by two pins to the distance piece and swung against the roof where it is supported by inserting a second pin 10 thus leaving a prop-free coal face for mechanical cutting. The second head plate is later supported by a prop when the pins 10 are removed to allow articulation. There is a universal joint 3 between the head plate and the prop 4. Single webs may replace the pairs of webs 5 and the ends of the distance pieces be bifurcated to engage them. Specification 676,582 is referred to.
Patent GB-463846-A (GB)
Title: Improvements in and relating to reciprocating pumps
IPC: F04B53/14
Filed: 1936-07-06
Abstract: 463,846. Non-return valves. BRITISH THOMSON-HOUSTON CO., Ltd. July 6, 1936, No. 18733. Convention date, July 6, 1935. [Class 135] [Also in Group XXVIII] A reciprocating pump comprises a block 10 bored to provide cylinders 14 and valve recesses 16, the latter being spaced further apart than the cylinders. A valve plate 60 is clamped between the block 10 and a recessed cover 61 provided with suction and discharge passages. Each valve assembly comprises a cage 72 having legs 72a and pressed against the valve plate by a bolt 73, and four discs 68 loaded by springs 70 are provided in the cage and control ports 65. The valve seats comprise discs 80 of hard material, such as hardened steel, secured to the plate 60. Alternatively, Fig. 7 shows the valve plate 60 having plates 82, 85 secured by welds 84, 86 and forming the seats for the suction and discharge valves. Specification 461,413, [Group XXVI], is referred to.
Patent GB-702457-A (GB)
Title: Improved means for automatic sampling of coal, grain or like granular materials
Inventor: SEABORNE ALLEVER BURTON
IPC: G01N1/20
Filed: 1950-07-27
Abstract: 702,457. Sampling granular material. MERCER, G. S. July 26, 1951 [July 27, 1950], No. 18747/50. Addition to 588,766. Class 58 An improvement in or modification of the invention claimed in the parent Specification comprises constructing the member adapted to remove a cross section from the stream of material in the form of a deflector plate 3 which is so shaped and directed through the stream that by a wedge action it progressively diverts a cross section of the stream out beyond the main path thereof. As shown a deflector plate 3 shaped like a plough-share having a sloping leading edge 4 is secured to an arm 5 attached to a plate 6 carried by a sleeve 7 freely rotatable on a shaft 8. is rotated to an upper dead centre position on rotation of the shaft causing a projection 36 of an arm 35 mounted on a sleeve 34 secured to the shaft to engage a projection 37 carried by a weighted lever 11 also secured to the rotatable sleeve 7, from which position the deflector plate swings down rapidly with a motion accelerated by the weighted lever 11 and wedges out a complete cross section of the stream of material 2 falling from a conveyer passing around a drum 1 which is deflected into a trough 30 for removal. Means are provided to prevent the deflector swinging back into the stream.
Patent GB-884352-A (GB)
Title: Mould closing devices
IPC: B29C45/67
Filed: 1960-05-27
Abstract: 884,352. Injection moulding machines. KRAUSS-MAFFEI A.G. May 27, 1960 [June 6, 1959], No. 18829/60. Class 87(2). Injection mould halves 7, 12 are brought into engagement by introducing hydraulic pressure fluid into a space 22 in a cylinder 13 so that the cylinder moves away from stationary piston 16 and slides plate 11 along rods 10 towards plate 6. The cylinder 13 is guided in an externally threaded housing 14 and when fully extended is locked in position by crescent-shaped stops 29 which are inserted beneath the end of the cylinder by piston and cylinder units 32, 33 so that the housing takes up the final mould closing pressure. This final pressure is provided by admitting fluid between the piston-shaped end 26 of the cylinder 13 and a cylinder 27 formed on the rear of plate 11. A threaded bush 23 on stationary plate 9 may be motordriven to adjust the axial position of cylinder 13 to accommodate moulds of different size. Cylinder 5 is stated to contain a reciprocable screw.
Patent GB-1502063-A (GB)
Title: Electrode assemblies
IPC: C25B9/19
Filed: 1976-05-07
Abstract: 1502063 Electrode assembly DIAMOND SHAMROCK CORP 7 May 1976 [9 May 1975]  18934/76 Heading C7B An electrode assembly, comprising at least two opposed electrode working faces 12 in substantially parallel relationship defined by substantially planar metal sheet members 13 each face having an electrically conductive connection 22 at least at two spaced locations to one or other side of a common electrode riser 11, the electrically conductive connections having flexability and being arranged to permit the electrode faces to move toward and away from the riser while maintaining a tension force within each face and between the connection points. The electrode riser 11 may have a central copper tube 14 clad with Ti 15 and connected to a Ti flange 17 and a threaded insert member 19 for connection purposes. The V shaped connectors 22 may be spot welded to the riser and to the expanded or perforated titanium sheets 13 which form the working surfaces of the electrode so that the electrode may be compressed Fig. 3 for insertion into a chlor-alkali cell and subsequently expanded therein. Detailed description of electrode assembly methods and apparatus therefor is provided.
Patent GB-354928-A (GB)
Title: Mounting means for the heating elements of electric resistance furnaces
IPC: H05B3/66
Filed: 1930-06-21
Abstract: 354,928. Electric resistance furnaces. HEVI DUTY ELECTRIC CO., 4100, Highland Boulevard, Milwaukee, Wisconsin, U.S.A.-(Assignees of Smalley, E. L.; Whitefish Bay, Wisconsin, U.S.A.) June 21, 1930, No. 19002. Convention date, June 22, 1929. [Class 39 (iii).] The heating element for the bottom of the hearth of an electric furnace consists of a preformed resistance of the return-bend type supported by pedestals apertured for the passage therethrough of the return bends. The resistance is formed by a rod or ribbon 1, Fig. 2, the bends in which pass through apertured refractory supports 3, shown in section in Fig. 8. The apertures are bevelled as shown at 12, 13 so as to permit escape of heat and prevent accumulation of scale. A lug 9 may be provided to engage the bend 10 in the operative position shown in full lines, the support being placed on the resistance by tilting to the position shown in dotted lines. The lug 9 may be omitted, lateral displacement being prevented by piers 5, Fig. 2, which support the charge above the heating element and may be capped with metal. Intermediate supports for the resistance element may be provided. The supports may be spaced apart by refractory ledges, or may be fitted into grooves in the bottom of the furnace.
Patent GB-749499-A (GB)
Title: Improvements in or relating to extractors and drivers for rail spikes and extracting and driving process of the same
IPC: E01B29/26
Filed: 1954-06-29
Abstract: 749,499. Inserting spikes. MATERIAL INDUSTRIEL SOC. ANON. June 29, 1954 [April 5, 1954], No. 19002/54. Class 89 (3). [Also in Group XXIII] The rail spike extractor 1 can be used for driving spikes into sleepers and for this purpose a hand shank 4 which fits into the part 1 of the device is used as a ram-rod for imparting hammer blows above a surface d which follows the contour of the upper part of the spike.
Patent GB-1003474-A (GB)
Title: Tetracycline derivatives
IPC: A61K/
Filed: 1962-05-17
Abstract: The invention relates to 6-deoxy- or 6-deoxy-6-demethyl tetracycline derivatives containing a 7 and/or 9 amino group in which at least one of said amino groups is substituted by one or two radicals of the formula <FORM:1003474/C2/1> in which R3 and R4 are the same or different and are hydrogen atoms, alkyl groups containing up to 6 carbon atoms or aryl or aralkyl groups. These tetracycline derivatives are prepared by an appropriate method from the following (a) condensing the corresponding tetracycline having a 7 and/or 9 amino group, wherein the amino group may be formed in situ by reduction of the corresponding substituted-tetracycline, wherein the substituent is a nitro, nitroso, diazonium halide, benzeneazo or substituted benzeneazo group, with one or two mols. of carbonyl compound per amino group on the tetracycline of the formula <FORM:1003474/C2/2> e.g. formaldehyde, for each mol. of tetracycline and separately or simultaneously reducing the resulting condensate e.g. with hydrogen and a catalyst such as Pd, Rh, Pt on an inert carrier, Ni or copper chromites, or formic acid; (b) reacting the corresponding 7 and/or 9 amino tetracycline with a formylating agent followed by reduction to the 7 and/or 9 methylamino tetracycline; (c) reacting the corresponding 7 and/or 9-amino tetracycline with an appropriate thioacylating agent e.g. with a dithio carboxylic acid ester or acylation followed by reaction with P2S5, followed by reduction with hydrogen/Raney nickel; (d) reacting the corresponding 7 and/or 9 amino tetracycline on the 4-benzyl dimethylamino quaternary salt with one or two mols. of an alkyl or an aralkyl halide, sulphonate or sulphate, the said aralkyl compounds being those containing the group aryl-CH2- as the aralkyl group followed if necessary with catalytic debenzylation; and (e) condensing the corresponding 7 and/or 9-amino tetracycline with formaldehyde and an appropriate aldehyde by a Mannich reaction followed by catalytic reduction and/or hydrogenolysis. The reductions referred to above may also be carried out with Zn, Sn or Fe and HCf and with metal couples. The compounds when administered orally or parenterally are effective against staphylococcus.
Patent GB-676755-A (GB)
Title: Nail coating blank and method of making same
IPC: A45D29/00
Filed: 1950-07-31
Abstract: 676,755. Artificial fingernails. BOGOSLOWSKY, B. July 31, 1950 [Aug. 3, 1949], No. 19055/50. Addition to 661,624. Class 81 (ii). A nail-coating blank of the type described in the parent Specification has a portion 17, at the end remote from the curved end, free from adhesive so as to form a flap that may be grasped to facilitate application of the blank to the nail.
Patent GB-893534-A (GB)
Title: Indexable work holders
IPC: B23Q16/06
Filed: 1960-05-30
Abstract: 893,534. Machine-tool details. LITHIBAR CO. May 30, 1960 [Sept. 24, 1959], No. 19103/60. Class 83 (3). [Also in Group XXIV] A work-holder device such as an indexable table for a drilling machine, comprises a support 1 having a row of teeth 78, a carrier 51 for a pawl 56, co-operating with the teeth, and a limiter 63, movable perpendicular to the row of teeth, a cam 36 adjacent the end of the limiter, and a row of movement-selecting devices 81 adjustable independently parallel to the direction of movement of the limiter. A rack 17 is operated by a pressure fluid cylinder 3 and carries a stop 19 co-operating with a stop 21 adjustable by a knob 23 on a screw 22. The rack engages a segmental gear 26 bearing against a ring 20, the movement of which on a boss 8 is retarded by a spring-pressed braking shoe in a cylinder 25. The cam member 36 is in sliding contact with the ring 20 and carries a roller bearing in a groove in the body part 2. The gear 26 carries at one end a slotted projection 28 in which is engaged a pin on the pawl 56 which is pivoted at 57 on the block 51 secured to the ring 20. The movement-limiting slider 63 is spring-urged towards the cam 36 along a groove in the block 51, and in a position of rest abuts one of the adjustable screws 81 secured on a flange 75 on the table 1. In operation, the rack 17 is moved right until the dog 19 hits the stop 21. The gear 26 has then carried the pawl 56 past one or more teeth 78. When movement of the rack 17 is reversed, the pawl 56 enters between teeth 78 and the table is carried round until the slider 63 engages the cam 36 and is pushed outwardly until it jams against a screw 81. In a modification, the table is movable in a straight line instead of rotatably. Specification 845,170 is referred to.
Patent GB-743476-A (GB)
Title: A jig for assembling the wire spokes in cycle wheels
IPC: B60B31/02
Filed: 1951-08-14
Abstract: 743,476. Vehicle wheels. EMAIN, J. Aug. 14, 1951 [Aug. 23, 1950], No. 19132/51. Class 144 (1). [Also in Group XXII] A jig for holding a wheel during mounting of the wire spokes comprises a frame 2-6, rotatably supporting two aligned hubs 16, 25, each carrying a bevelled-edged,plate 18, 24 to engage under and clamp a wheel rim 40 centred with respect to a wheel axle which is received in sockets 23 and 32 mounted one in each hub, one of the hubs (25) being axially displaceable to effect the clamping of the rim and the sockets (32) in one of the hubs (25) being axially displaceable to accommodate axles of different length. As shown, the frame comprises three vertical tubular supports 2, 3, 4, carrying horizontally aligned bearings 9, 10, 11 respectively, the bearing 9 supporting a fixed shaft 13 carrying the rotatable hub 15, and the bearings 10, 11 slidably supporting a non-rotatable shaft 28 carrying the rotatable hub 25. Axial displacement of the hub 25 is effected by bodily movement of the shaft 28 by a handle 37 or a wing nut 39 screwed on the shaft 28 and bearing against the bearing 11. The sockets 23 and 32 are received in housings in the ends of the shaft 13, 28 respectively, the socket 32 being axially movable within its housing against a spring 33.
Patent GB-445074-A (GB)
Title: Swivel sliding door
IPC: E06B3/50
Filed: 1935-07-04
Abstract: 445,074. Pivoted sliding doors. BELFERMAN, M., 4, Charles Road, and THURSTON, A. V., 8, Wyatt Road, both in Forest Gate, London. July 4, 1935, No. 19178. [Class 20 (iii)] A door is slidably pivoted in channel guides A in the frame. The pivots B are recessed where they engage inturned flanges F of the guides, and have a ball-bearing E, and also integral lateral webs (Fig. 3) for attachment to the door.
Patent GB-314095-A (GB)
IPC: G11B7/241
Filed: 1929-06-22
Abstract: 314,095. Vogt, H. June 23, 1928, [Convention date]. Photographic records; materials for. - Photographic sound records are printed on films or plates made of cellulose impregnated on one side with a light-sensitive solution, such material being non-inflammable. " Cellophane " (registered Trade Mark) is preferably used, and is sensitized by treatment with any suitable chemicals (such as solutions of ammonium ferri-citrate, potassium ferro-cyanide, calcium ferri-cyanide, or iron chloride and silver nitrate). In use, films made in accordance with the invention are continuously fed forward by rollers and are therefore made without perforations. When the material is used in the form of plates, the sound-trace is spirally produced. The Specification as open to inspection under Sect. 91 (3) (a) states also that the sensitized substance may be applied to the cellulose as an emulsion coating. This subject-matter does not appear in the Specification as accepted.
Patent GB-904764-A (GB)
Title: Control systems for electric motors
Inventor: HALLSWORTH ARNOLD
IPC: B66C13/40
Filed: 1959-06-05
Abstract: 904,764. Control of D.C. motors. STEELS ENGINEERING PRODUCTS Ltd. May 31, 1960 [June 5, 1959], No. 19233/59. Class 38 (3). [Also in Group XXXV] A crane is driven by a series motor 24 which is supplied from a shunt-wound generator 1 driven at variable speed by a prime mover 20. An actuator motor 4 for adjusting the throttle of the prime mover is controlled from a remote panel 21 housing spring-loaded push-buttons 2, 3. The engine speed is increased by pressing both buttons, a contactor being energized to operate the motor 4 in a direction which opens the throttle. To decrease the engine speed both buttons are released, and, to hold the speed, one button is pressed whilst the other is released. Thus, if the operator becomes incapable of control and releases both buttons the circuit is completed for closing the throttle which brings the crane to a standstill. Buttons 22, 23 control a reversing contactor 28 for the motor 24. The motor 4 is geared to a screw driving a slide member mounted on a guide bar and coupled by a slot and pin to an armed keyed to a rocking-shaft. This shaft carries an operating lever 15 which is linked to the throttle of the engine. Limit switches are operated by the slide member when the latter reaches either end of its motion.
Patent GB-286959-A (GB)
Title: An improved lubricator
IPC: F16N13/10
Filed: 1927-07-20
Abstract: 286,959. Cock, J. S., and Norbom, H. A. July 20, 1927. Cam-actuated pumps ; buckets; single-acting b u c k e t pumps. - A lubricator comprises a container 1 fitted with a strainer and a pump barrel 7 in which a piston 12 is reciprocated bv a cam 39 on the shaft to be lubricated and a spring 25. Liquid enters the barrel through the inlet valve 26 and passes through ports and a valve 16 in the piston to an axial passage 35 in the piston rod, and then through ports 36 to the bearing &c. to be lubricated. The piston has external slots, one, 13, for priming the pump by opening a screwdown valve 32, another, 14, for engaging a guide pin 14<a>, and others for the attachment of external delivery pipes feeding other points. The piston has a threaded rod 18 provided with nuts 19, 20 by means of which the stroke is adjusted. The driving cam may be external to the bearing 10.