baber/WOPTO huggingface dataset:
Patent GB-1345766-A (GB)
Title: Magnetic bearings
IPC: F16C39/06
Filed: 1971-05-25
Abstract: 1345766 Bearings H HABERMANN R LOYEN and P JOLY 25 May 1971 [17 June 1970] 17042/71 Heading F2A [Also in Division G3] A magnetic bearing has two relatively rotatable members 1, 2, one comprising magnetic material and the other having at least one pair of opposing electromagnets 3, 4 acting on the magnetic material, the electromagnets being controlled by a pair of detectors 5, 6 sensitive to displacement of the members so as to counteract any displacement. Preferably there are two pairs of electromagnets 3a, 4a, 3b, 4b and two pairs of electromagnetic detectors 5a, 6a, 5b, 6b. The detectors are connected via amplifiers 7 in a bridge circuit ABA<SP>1</SP>B<SP>1</SP>, the opposing corners of which are connected through amplifiers 8A, 8B to measuring networks whose outputs control power amplifiers 14, 15 which control the electromagnets. Each measuring network comprises a demodulator 9, a selective amplifier 10 having a high sensitivity to low frequencies, a damping cell 11 acting by phase advance, a linearizing amplifier 12 and a directional device 13 comprising diodes. The two pairs of electromagnets are arranged at right angles to one another, and the detecting devices are offset relative to the electromagnets. The two relatively rotatable members may be concentric cylinders or they may have opposed surfaces between which the electromagnets act perpendicularly to the axis of rotation, or they may have complementary frusto-conical or spherical surfaces.
Patent GB-1075491-A (GB)
Title: An improved device for lifting and overturning bins for emptying the same into refuse collection vehicles
IPC: B65F3/04
Filed: 1965-04-22
Abstract: 1,075,491. Tipping dustbins and other containers. A. TALENTI. April 22, 1965 [Jan. 22, 1965], No. 17109/65. Heading B8E. A supporting slide 5, 7 for a refuse can 10 to be tipped is slid along an arm 1 as the latter turns about a horizontal axis 16 by a linkage 4, Fig. 1 (not shown), following the contour of a cam 3. The side members 5 are provided with bowed arms 8 in the form of brackets with outwardly turned hooks 9 to engage the can handles 11. The arms 8 have cut-out zones 13 near notches 14 serving to support a different sort of can provided with a pair of side plates 15 connected by a cross rod which engages the notches 14.
Patent GB-1109492-A (GB)
Title: Improvements in or relating to hydraulic reciprocating pumps
IPC: F04B7/02
Filed: 1965-04-22
Abstract: 1,109,492. Reciprocating pumps. SNAM S. p. A. April 22, 1965 [April 29, 1964], No.17124/65. Heading F1A . A pump for accurately metering volatile, viscous or corrosive liquids comprises a piston 1 actuated by compressed air against a spring 4 and a shuttle valve 5, e. g. P. T. F. E., moved by compressed air to connect the pumping chamber 9 to outlet 12 and by spring 7 to connect chamber 9 to inlet 11. The piston stroke is determined by an adjustable stop 3. The compressed air is supplied so that the pump piston and valve reciprocate in synchronism and with a desired phase difference.
Patent GB-476961-A (GB)
Title: Improvements in or relating to hydraulic die-stamping presses and pistons therefor
IPC: B30B15/00
Filed: 1936-06-19
Abstract: 476,961. Pistons. VOMAG-BETRIEBSAKT.-GES. June 19, 1936, No. 17137. Convention date, June 26, 1935. [Class 122 (i)] The piston of a hydraulic die - stamping press, having a crosshead 9 integral with a press cylinder 1, is constructed of a plurality of parts 2, 3, 4 combined by a screw bolt 5 to form a unit, the height of each part being less than the working gap available for taking the piston out of the press sideways. To remove the piston, the table 6, press-plates 7, 11 and the bolt 5 are first removed. The parts 2, 3, 4 are then removed by a screw spindle provided with a pin which is inserted crosswise in the piston parts, and is connected to a lifting-nut mounted on the cross-head.
Patent GB-471775-A (GB)
Title: Improvements in coke oven doors
IPC: C10B25/14
Filed: 1936-06-20
Abstract: 471,775. Coke-oven doors. WILPUTTE, L. N. June 20, 1936, Nos. 17224 and 17225. Convention dates, June 25, 1935 and June 11, 1936. [Class 123 (i)] A coke-oven door is pressed against its seating by springs PO, Fig. 2, between the door and the cross locking-bars M. The door is of the self-sealing type and has a flexible sealing plate K between the plug J. and the framing I as described in Specification 468,412. The cross-bars engage with hooks H on.the frame E around the door opening and they are pivotally mounted on plungers O<3> which are pressed outwards by the springs PO, each being held between a collar O<2> on a plunger O<3> and a fixed part P<3> of the door. The door is lifted and removed by the machinery described in Specification 471,849, [Group XII]. The lifting lever S, Fig. 4, of the machine engages a crossbar I<3> on the door and simultaneously the plungers O<3> are pressed inwards and cam surfaces engage the cross-bars to rotate them free from engagement with the hooks. The hooks may all point upwards, the cross-bars being then lifted free from them without rotation. The spring PO, Fig. 12, pressing the cross-bar MB against its hooks, is arranged to pull down a lever I<22> and an arm I<26> connected to the cross-bar by a link I<27>. When the cam surface SB<2> on the lifting lever SB engages the lever I<22> to relieve the pull of the spring, a projection on the lever engages the cross-bar and lifts it free from its hooks.
Patent GB-1431873-A (GB)
Title: Condensation resins of phenols and alpha,alpha,-dihydroxy- diisopropyl benzenes
IPC: C08G8/12
Filed: 1974-04-19
Abstract: 1431873 Hydroxybenzene derivatives BAYER AG 19 April 1974 [19 April 1973] 17252/74 Heading C2C [Also in Division C3] An isomoric mixture of α,α<SP>1</SP>-bis-(hydroxyphenyl)-diisopropyl benzenes is prepared by reacting α,α<SP>1</SP>-dihydroxy-m- and -p-diisopropylbenzene with phenol in the presence of phosphoric acid or hydrazine dihydrogen phosphate as catalyst, then adding NaOH and distilling off the excess phenol, and after a suitable purification treatment, evaporating a solution of the product in an organic solvent, followed by fractional distillation.
Patent GB-1344339-A (GB)
Title: Method and apparatus for analyzing and controlling the cleaning operation of an electrochemical grinding device
IPC: B23H5/08
Filed: 1971-05-26
Abstract: 1344339 Automatic control of electrochemical grinding HAMMOND MACHINERY BUILDERS Inc 26 May 1971 [29 June 1970] 17288/71 Heading G3R [Also in Division C7] Waste material is removed from an electrochemical grinding wheel 11 by a cleaning electrode 22. A sensing circuit 51 detects the resistance between a sensing electrode 29 and the matrix of the grinding wheel, compares this with a standard signal and controls the time of application of the cleaning electrode voltage. A second sensing circuit may detect the conductivity of the electrolyte as it passes through a conductivity cell, Fig. 15 (not shown).
Patent GB-721004-A (GB)
Title: Process for the production of bactericidal clear ice
IPC: A23B4/08
Filed: 1953-06-22
Abstract: 721,004. Ice-making. GOLDSCHMIDT AKT.-GES., T. June 22, 1953 [July 31, 1952], No. 17295/53. Class 29. Bactericidal ice contains 0.001 per cent. to 1 per cent. of an amphoteric surface active substance having the general formula wherein R 1  is an alkly group with a carbon chain of at least 6 carbon atoms possibly interrupted by NH, CONH, COO, 0 or S 1 , R 2 , a group of the same kind as R and or hydrogen ; and R 3'  a low molecular weight bridging group which is aliphatic, aromatic or mixed aliphaticaromatic. Mixtures of such substances may be added to the water. The Specification gives many examples of suitable substances.
Patent GB-596461-A (GB)
Title: Substituted polyhydric phenols
IPC: C07C37/18
Filed: 1945-07-06
Abstract: Nuclearly substituted phenols are made by reacting a halide, in which the halogen is aliphatically bound, with a polyhydric phenol in the presence of anhydrous zinc chloride and a lower aliphatic alcohol containing less than six carbon atoms.  Of particular advantage is the introduction of two substituent groups into hydroquinone or catechol or monosubstituted derivatives thereof such as the chlorohydroquinones, toluhydroquinones and phenylcatechols, but other dihydric phenols such as resorcinol, naphthohydroquinones, phenylhydroquinones and the trihydric phenols may be used. Aliphatically bound halogen compounds which may be used include the straight and branched chain primary, secondary and tertiary halides and the aralkyl halides.  In examples: (1) 2,5-bis-(dichlorophenylethyl)-hydroquinone is made by refluxing hydroquinone and a chloroethyl-dichlorobenzene with zinc chloride and alcohol; (2) 2,5-di-tert.-butylhydroquinone is similarly obtained from hydroquinone and tertiary butyl chloride; (3) 2,4-di-tert.-butylcatechol is made from catechol and tertiary butyl chloride; (4) 2,4-di-tert.-amylhydroquinone is obtained from hydroquinone and tertiary amyl chloride; (5) 2,5-diphenylethylhydroquinone is obtained from hydroquinone and beta-phenylethyl chloride; (6) 2,5-di-tert.-butyl-3-chlorohydroquinone is obtained from chlorohydroquinone and tertiary butyl chloride; (7) 2,5-dibenzylhydroquinone is obtained from hydroquinone and benzyl chloride; (8) a benzylhydroquinone is obtained from hydroquinone and benzyl chloride in the presence of zinc chloride and methyl alcohol; (9) 2,5-dibenzylhydroquinone is obtained from hydroquinone and benzyl chloride in presence of zinc chloride and absolute alcohol; (10) dibenzylhydroquinone is similarly obtained using iso-propyl alcohol as solvent; and (11) a semi-solid product is obtained by refluxing hydroquinone and ethylene chlorohydrin in presence of zinc chloride and absolute alcohol.
Patent GB-175527-A (GB)
Abstract: 175,527. Cracknell, J. C. Feb. 8, 1921. Fuel - economizers. - A fuel-economizer comprises a hollow cast-metal sphere which is placed in the firebed, and is formed with holes a at opposite polar points and a series of slits b leaving limbs c between them. Specification 28029/12 is referred to.
Patent GB-1508233-A (GB)
Title: Frequency converters
IPC: H03B19/14
Filed: 1975-04-28
Abstract: 1508233 Semiconductor frequency multiplier circuit SONY CORP 28 April 1975 [9 May 1974] 17559/75 Heading H3T A frequency converter comprises a semiconductor device (Fig. 3, not shown) of three regions of alternating conductivity type, fitted with terminals, with a fourth terminal separated from the first region by an insulating layer, the three regions functioning respectively as the emitter E, base B and collector C of a transistor Q with the fourth terminal G acting as an IGFET gate controlling the common-emitter current amplification factor h FE , which when plotted against gate-emitter voltage shows a symmetrical valley between regions of high level: with bias supply - B 2  to the gate maintaining the working point swinging about the centre of the valley and the transistor conducting, a waveform applied via a capacitor 12 to the gate produces output from a secondary winding 19 coupled to an inductor 18 in a tuned circuit 15 as collector load at double the input frequency. The conductivity types of the regions of the device may be reversed. The first region may contain a subregion of higher impurity concentration within the diffusion distance of minority carriers from the junction of first and second regions.
Patent GB-716747-A (GB)
Title: Improvements relating to the securing of electrical wiring terminals in insulating blocks
Inventor: SMITH SIDNEY CHARLES
IPC: H01R9/24
Filed: 1952-04-11
Abstract: 716,747. Mounting terminals. SIEMENS BROS., & CO., Ltd. July 10, 1953, [April 11, 1952.]. No. 17586/52. Class 38(1). Terminals 5 are secured in turn in holes in an insulating block i by deforming them within cavities 3 intersecting the holes by a blow delivered through the open ends of the cavities. The cavities may be closed at one end, as shown, or open at both ends. Fig. 2 shows an electromagnet winding spool formed integrally with two such terminal blocks 1, 11, having grooves 13 to accommodate the connecting wires for the terminals. A similar spool is used in a relay constructed as described in Specification 716,503, [Group XXXVII], Fig. 3, (not shown).
Patent GB-256591-A (GB)
Title: Improvements in the damping of measuring instruments
IPC: G01V7/10
Filed: 1926-07-14
Abstract: 256,591. Koenigsberger, J. Aug. 10, 1925, [Convention date]. Damping arrangements for indicating- apparatus.-In an in strument such as the E÷tv÷s torsion balance provided with thread suspensions for the movable element a damping device is suspended from the movable element by a short thin wire which passes through the centre of the surface of the damping liquid. By this. means surface tension is reduced to a minimum and variation of the zero point of the instrument is avoided. The damping device as shown comprises a casing 10 filled with damping liquid and a number of discs 12 on a central spindle 13 arranged preferably under the centre of gravity of the suspended element 4. The spindle 13 is attached to the lower part 14 of the element 4 by means of a short thin wire 15 passing through the centre of the liquid surface.
Patent GB-1338341-A (GB)
Title: Apparatus for anaesthesia and artificial respiration
IPC: A61M16/22
Filed: 1972-04-13
Abstract: 1338341 Valves INDUSTRIA TEHNICOMEDICALA 13 April 1972 [15 April 1971] 17750/72 Heading F2V [Also in Division A5] A valve adapted for alternative flow of gas from the left hand feed line of a main tube to the vertical branch or a branch 21 comprises a cylindrical body 19 with a valve member 39 rotatable by lever 40 so as to bring an orifice in the end face into register with branch 20 or an orifice (not shown) in the cylindrical portion into register with said vertical branch.
Patent GB-250073-A (GB)
Title: Improvements in gas-meters
IPC: G01F15/07
Filed: 1925-07-10
Abstract: 250,073. Wilson, W. July 10, 1925. Associated counters, trip and total; zeroizing- mechanism.-In a gas meter provided with a second counter for registering the gas consumed since the meter was last inspected, this counter consists of rotary discs 1 bearing numbers visible singly through ports in the casing. The discs may be zeroized by mean of heart cams 5 and a vertically movable plate 9 depressed by a knob 10 accessible only to an authorized person.
Patent GB-300570-A (GB)
Title: Improvements in molybdenum alloy iron
IPC: A45D2/36
Filed: 1928-06-19
Abstract: 300,570. Climax Molybdenum Co., (Assignees of Kissock, A.). Nov. 15, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Alloys.-Relates to molybdenum-bearing pigiron which may be used as an alloying agent in a solid or molten state for admixture with iron or steel, or as part of the charge of a steel-making furnace, for the production of grey, white, malleable, or semi-steel castings. The material may be made by the process described in Specification 299,800.
Patent GB-542825-A (GB)
Title: Improvements relating to abrasive bodies and to bond mixtures therefor
IPC: C08K3/00
Filed: 1940-12-18
Abstract: 542,825. Abrasives. NORTON GRINDING WHEEL CO., Ltd. Dec. 18, 1940, No. 17850. Convention date, Jan. 22. [Class 70] Abrasive grains are coated with rubber and a filler in proportions to yield a product which is dry and can be screened and poured, and the mixture is pressed in a mould and vulcanized to obtain a porous article. Rubber, for example smoked sheet, is rendered plastic in a mill, small proportions of a rubber liquefier such as methyl-#-mercaptan, or organic compounds or oxides of copper or manganese being added at intervals until the product has the consistency of molasses. The product is mixed with abrasive grit in a kneader so as to wet each grain, sulphur and clay magnesia, carbon black, cryolite, fine alumina, silica gel, magnesium carbonate, powdered hard phenolformaldehyde resin, hard rubber dust or other inert filler is kneaded in and the mixture is screened, if necessary, to separate the particles. Specification 469,299 is referred to.
Patent GB-713382-A (GB)
Title: Improved spinning pot
IPC: G05D23/275
Filed: 1952-07-15
Abstract: 713,382. Spinning pots. INDUSTRIEWERKE KARLSRUHE AKT.-GES. July 15, 1952 [July 19, 1951; June 10, 1952], No. 17858/52. Class 120(2) A spinning pot for rayon comprises an outer shell made of light metal (aluminium or aluminium alloys) and a lining made of synthetic resin for protecting the internal surface of said shell against chemical and mechanical action wherein the lining is readily removable from the outer shell without damage to the latter or to itself. As shown the pot consists of an outer shell 1 and a lining 3 having smooth, tightly interengaging walls 2 of frusto-conical shape. The top 5 of the lining is shaped to cover the upper edge 4 of the shell and a cover 10 is secured on the pot in conventional manner. In a second embodiment the top of the lining extends upwardly above the upper edge of the shell and receives the cover directly. The lining is also provided at the bottom with a spigot which engages. a hole in the shell and is held therein by a spring ring. In a further embodiment the lining is elastic and is provided with projections on its outer surface which can be sprung into corresponding recesses in theinner wall of the shell.
Patent GB-453300-A (GB)
Title: Improvements in or relating to discontinuous wire stitching or stapling machines
IPC: B42B2/02
Filed: 1935-06-21
Abstract: 453,300. Stapling. CAMCO (MACHINERY), Ltd., 63, Farringdon Street, London, and PRATT, W. A., 162A, High Street, Watford, Hertfordshire. June 21, 1935, No. 17926. [Class 89 (iii)] A stapling or discontinuous wire - stitching machine, for operating on book signatures, folded sheets, &c., of the kind having a travelling work carrier, for collecting and forwarding the work, which is adjustable towards or from the stitching saddle in accordance with the size of the work, is provided with an extensible bridging device for bridging the gap formed when the carrier is adjusted away from the saddle. As shown, the machine comprises a stitcher head S with stitching saddle 11, a bridging device B, and a travelling work carrier C. The latter consists of fixed saddle plates 33 carried by arms 23 vertically adjustable on standards 22, and a chain of roof-shaped links 15 passing over sprocket wheels 16-18, the wheel 17 being driven. The wheels are journalled in bearings 19, 20 which are interconnected by bars 27, 28 and are adjustable along guide rods 21 supported by the arms 23. Adjustment is effected by a lever 30, and the chain is tensioned by screws 31. The bar 28 guides the upper run of the chain, and the lower run is guided by the bar 27 and a bracing bar 26 and rollers 38. The links 15 are fitted at intervals with pusher fingers 35 which cooperate, at laying-on stations 36, 39 with arms 40 supported above the chain, with freedom for upward pivotal movement only, on brackets 41. The means for bridging any gap formed between the chain and the saddle 11, consists of a cable 42, which is secured to a bridgeshaped nose piece 43 in front of the chain, passes over a pulley 44 arranged between, and at the apex of, the plates of the saddle 11, and is wound on a drum 46. The latter is turned, to tighten the cable, by a handle 50 and a ratchet wheel 47 held against clockwise rotation by a pawl. The cable may be wound on the pulley 44, or the drum 46 may be spring- loaded so that the cable is wound or unwound as the chain 15 is adjusted. Movement of the work along the bridging cable 42 and on the saddle 11 is effected by a driven roller 51 and a co-operating roller, not shown, mounted to be moved into and out of engagement with the roll 51 in time with the operations of the stitcher head. In a modification, the bridging device consists of several telescoping roofshaped members, which may be extended or contracted by hand or spring means. The end members, or only one of them, may be secured rigidly to the member 43 and /or to a bracket on the saddle 11.
Patent GB-1280744-A (GB)
Title: Improvements in, and relating to a method of operating a suction dredge and to a suction dredge for performing such method
IPC: E02F3/88
Filed: 1970-04-15
Abstract: 1280744 'Suction dredgers, floating structures' KONINKLIJKE MAATSCHAPPIJ TOT HET UITVOEREN VAN OPENBARE WERKEN ADRIAAN VOLKER NV 15 April 1970 [17 April 1969] 18040/70 Headings E1F and E1H Rolling or pitching of a floating, anchored suction dredger is kept to a minimum by constructing the dredger so as to have a working deck supported at all times above the water in which the dredger is operating by slender columns mounted on a hull or hulls submerged to a depth at which the water is undisturbed by any wave formations at the surface of the water. The double-acting pump operating the suction apparatus of the dredger may be mounted on the deck or on or in the hull or hulls. The depth to which the hull or hulls are submerged can be varied by appropriate ballasting of the dredger. When working in shallow water the dredger is so ballasted that the hull or hulls are located in a trench formed by the suction apparatus.
Patent GB-569548-A (GB)
Title: Improvements relating to hydraulic presses
IPC: B30B7/02
Filed: 1943-11-01
Abstract: 569,548. Compound sheet materials. SHAW & SONS (SALFORD), Ltd., J., and FERN, J. F. Nov. 1, 1943, No. 18055. [Class 140] [Also in Group XXIX] A hydraulic press e.g. for applying axial and edgewise pressure in the manufacture of laminated sheets, comprises hotplates 6 resting on supports 13 when the press is open and each carrying edge pressing plates 16 detachably connected to the hotplate and to edge plates 19. The pressing plates 16 may be detachably and slidably secured to the hotplates by brackets 15. and have projections 17 retained in grooves in the edge platens by plates 18. Alternatively the plates 18 may be omitted and horizontal slats provided to intersect the grooves in the platens whereby the pressing plates 16 may be disconnected therefrom. Thickness stops 20 on the hotplates project slightly above the edge pressing plates. The supports 13 are in the form of members detachably secured to the press frame 12 and stepped for engagement by projections 14 on the hotplates.
Patent GB-223843-A (GB)
Title: Improvements in rotary tooth brushes
IPC: A61C17/24
Filed: 1924-07-29
Abstract: 223,843. Edey, W. H., and Beale, A. J. July 29, 1924. Brushes, hand-supported, driving by hand; brush sheaths.-A rotary toothbrush comprises bristles 1 secured in the strands of a twisted wire spindle 2 which is bent to form a cranked handle 4. The spindle is enclosed in a tubular handle 3 moulded in one piece with a shield 5.
Patent GB-519413-A (GB)
Title: Improvements relating to flush-fitting electrical devices
IPC: H02G3/12
Filed: 1939-06-21
Abstract: 519,413. Switch cases. BELL, C. F. June 21, 1939, No. 18132. [Class 38 (v)] In order to enable a sunk switch 11 or the like to lie flush on the wall 5 or other support notwithstanding inaccuracy in the mounting of its housing 1, the switch is inserted together with an abutment plate 6 in the housing and loosely fixed by screws 12 passing through apertures 8 into the housing. A jig 9 with lugs 10, Fig. 4, is then placed over the recess, and screws 7 in the plate 6 are adjusted so that the jig bears evenly on the wall, whereupon the screws 12 are rotated until the switch is drawn up to the plate 6. The switch-cover is then clamped in place.