baber/WOPTO huggingface dataset:
Patent GB-123173-A (GB)
Title: Improvements in Apparatus for Automatically Taking Samples of Liquids.
Inventor: ROBERTS THOMAS
IPC: B67D1/00
Filed: 1918-02-18
Abstract: 123,173. Roberts, T. Feb. 18, 1918. Sampling liquids.-Apparatus for taking samples automatically comprises a feeding funnel c' and hollow arm b<1> rotating intermittingly over a ring of sampling vessels k mounted in a relatively fixed table h, the rotation of the funnel and arm being effected by ratchet mechanism m driven by electric devices o controlled by clockwork, preferably at a distance. The liquid is supplied to the funnel through a tap d<2> on a fixed pipe d, and the table h may be supported on rollers for occasional manual rotation. The ratchet wheel m may be driven by a spring pawl pivoted to the core o' of a solenoid o carried by a fixed bracket o<5>, or in place of the solenoid, an electro-magnet may be used. The circuit of the solenoid or magnet is controlled by an arm p mounted preferably on the hour wheel or sleeve of a clockwork train and making contact with a contact s, which may be adjusted to vary the duration of the contact. The arrangement may be such that the arm b<1> is moved several times while over a sampling vessel.
Patent GB-305038-A (GB)
Title: Improvements in and relating to single phase transformers
IPC: H01F27/34
Filed: 1929-01-28
Abstract: 305,038. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Jan. 28, 1928, [Convention date]. Addition to 272,525. Regulating transformers.-In a singlephase transformer in which the windings are distributed over three limbs as described in the parent Specification, the sections of the high or low voltage windings or both on two of the limbs are connected in parallel with each other and in series with the section on the third limb. Special advantages are afforded with regard to grading of the insulation when three such transformers are connected in a three-phase system to form a bank of transformers with an earthed neutral. Further, voltage regulation may be effected by means of tappings h on the parallel-connected sections f which are connected to the neutral B, the tap connections being changed in turn while the corresponding limbs are rendered fluxless by operation of a switch k. A tapped winding may also be provided on the centre limb.
Patent GB-325246-A (GB)
Title: Improvements in or relating to apparatus for the production of artificial silk and the like
IPC: D01D10/04
Filed: 1928-08-09
Abstract: 325,246. Borzykowski, B. May 11, 1928, [Convention date]. Divided on 311,391. Spindle apparatus. - To enable the washing, and if desired other liquid treatments, to be carried out on the cakes of artificial silk &c. as obtained when spinning according to the centrifuge method, and particularly for the purpose of carrying out the process described in Specification 311,391, a resilient perforated sleeve v is inserted in the cake in order to protect the inner layers of thread. Further, in order that the cake may be more easily removed from the spinning pot, the latter may be provided with a removable perforated lining n, Figs. 2 and 3, formed of a plurality of parts provided with projecting ears o which engage with slots m formed on the interior of the spinning pot, while the lining is supported by ribs k; alternatively, existing pots may be used, a lining consisting of a multi-part ring n, Fig. 3, or of a resilient ring n<1>, Fig. 4, provided with supporting ribs s, being employed. To protect the threads, the lining or rings may be covered with muslin. During the formation of the cake, washing liquid is supplied through the spinning funnel; after the washing operation is completed, softening liquid is supplied to the spinning pot, the resilient perforated sleeve v having first been inserted in the cake. As an alternative, the spinning pot may be double-walled, as shown in Fig. 6, the space w between the inner perforated wall and the solid outer wall communicating with passages w<1> discharging at points near tne pocket for the spindle; and in this case the pot may be provided with an iner lining n. For the after-treatments the pot is mounted on a seating y, Fig. 6, forming part of a suction system z, and the cake washed or otherwise treated with liquid in the manner described in Specification 239,482, [Class 2 (ii), Cellulose &c.], or the pot may be fitted with a tightly-fitting cover 2, Fig. 7, provided with a connection 3 through which liquid is forced; the resilient perforated sleeve v is preferably fitted in the interior of the cake during these treatments. Reference has been directed by the Comptroller to Specification 297,118 [Class 2 (ii), Cellulose &c.].
Patent GB-1291926-A (GB)
Title: Piezoelectric circuits
IPC: H03H21/00
Filed: 1970-01-21
Abstract: 1291926 Miscellaneous amplifiers; electromechanical filters RCA CORPORATION 21 Jan 1970 [24 Jan 1969] 2877/70 Headings H3B and H3U . An element 16, Fig. 1, having both piezoelectric and ferro-electric properties is mechanically vibrated in response to alternating input signals 24, the ferro-electric remanent charge condition of the element, and hence its piezoelectric output to a utilization circuit 28, being changed selectively by applying a control pulse from a pulse generator 38. The element 16, Fig. 2, consists of a layer of ceramic piezoelectric material such as donor-doped lead zirconate/lead titanate contained between electrodes 40, 42 and is vibrated by a further element 14 consisting of a similar layer contained between electrode 42 and a further electrode 44, the frequency of the input signal corresponding to the natural vibrational frequency of the structure. Maximum output voltage from element 16 is obtained by polarizing the element to the voltage of a biasing source 36 by temporary closure of a switch 34. A lower output voltage is obtained by changing the initial degree of polarization by applying a pulse from pulse generator 38 of opposite polarity to the biasing source, the degree of voltage lowering being determined by the amplitude or deviation of the pulse applied. The elements 14 and 16 may be combined with a further element to form a three element structure 52, 54, 56, Fig. 5, which is used in the circuit of Fig. 4. An integrated chip circuit forming a transistoramplifier 66 applies an alternating input signal to element 54 which drives both elements 52, 56. Element 52 applies feedback to the amplifier to produce oscillation, while element 56 corresponds to the controlled element 16 of Fig. 1 and produces an output voltage which is applied to a voltage doubler 84, 86, 88, 90.
Patent GB-621929-A (GB)
Title: Improvements relating to power transmission clutches
IPC: F16D13/68
Filed: 1947-01-31
Abstract: 621,929. Friction clutches. MACBETH, C. Jan. 31, 1947, No. 3009. [Class 80 (ii)] In a clutch of the kind in which a pair of sheet metal discs 1, 2 are connected by a rubber annulus 3, the disc 1 being secured to the hub 4 and the disc 2 carrying the friction pieces 6, the region between the friction pieces 6 and the rubber annulus 3 is provided with two rings of apertures 9, 10 arranged in staggered formation to flank opposite sides of narrow heat conducting paths 11 between the inner and outer portions of the region. The apertures 9 may connect with radial slots 8 which increase the flexibility of the disc 2. In a modification metal segments carrying the friction pieces are so shaped and secured to the main portion of the disc 2 as to provide two rings of apertures as before.
Patent GB-372745-A (GB)
Title: An improved method of insulating hot or cold objects
IPC: F16L59/02
Filed: 1931-01-30
Abstract: 372,745. Nonconducting coverings for heat. HOFBAUER, G., 19, Edmund- Weisgasse, and TREXLER, A., 4A, Beatrixgasse, both in Vienna. Jan. 30, 1931, No. 3063. [Class 64 (ii).] Heat insulation such as semicylindrical pipe covers 2,3, Fig. 1, or plaits or the like 11, covered by corrugated pasteboard 12, Fig. 2, is provided with an outer covering of shiny foil in the form of sheets 4 or tape 13, secured by clamping rings 7 or 14. Reference has been directed by the Comptroller to Specification 3792/84, [Class 64, Heating].
Patent GB-139572-A (GB)
Title: Improvements in or relating to inclinometers
IPC: G01C9/10
Filed: 1919-09-06
Abstract: 139,572. Grant, W. E. Sept. 6, 1919. Clinometers for aircraft have a number of electric lamps, preferably arranged in cross formation, the circuits to the lamps being controlled by a switch member consisting of a pair of curved tubes 9, 10 arrangedat right-angles to each other and containing a small quantity of mercury 14. The tubes are provided at their ends, which are above the level of their centres, with terminals 11, 12, each pair of which is arranged in one of the lamp circuits. The switch device is embedded in pitch &c. 13 in a casing 7 secured to the aircraft.
Patent GB-565837-A (GB)
Title: Improvements in multi-purpose agricultural machines
IPC: A01B35/14
Filed: 1943-02-25
Abstract: 565,837. Agricultural implements. BETTINSON, P. B. Feb. 25, 1943, No. 3109. [Classes 6 (i) and 6 (iii)] A frame for mounting earthworking tools, hay and like sweeps or other implements for operation ahead of a tractor comprises a pair of bars 1 rigidly secured to the front of the tractor, arms 4 pivoted at their rear to the bars 1 and a transverse tool bar 7 supported by the arms 4. A second cross-bar 13 supports limbs 15 carrying ground wheels 17, the height of which is adjustable by a hand-operated screw 18. Guide bars 23 depending from the bars 1 prevent lateral movement of the bars 4. A cable 24 passing over a pulley 25 is connected to a lever 27 rocked from the tractor gear-box, for raising and lowering the tool assembly.
Patent GB-827509-A (GB)
Title: Improvements in or relating to electric furnaces
Inventor: HAINES ERNEST MARTIN
IPC: H05B3/62
Filed: 1957-01-29
Abstract: 827,509. Electric furnaces. GENERAL ELECTRIC CO. Ltd. Jan. 29, 1958 [Jan. 29, 1957], No. 3179/57. Class 39(3) [Also in Group XII] A resistance furnace for operating at 2500‹C.-3000‹C. and suitable for the graphitization of carbon comprises six heating element parts 44 each consisting of a graphite plate having ends 47 which are secured to the tops of graphite members 9; allowance for the thermal expansion of the heating element is made by pivoting the members 9 at their lower ends 50. A chamber 1 for containing the charge to be graphitized is surrounded by carbon black powder 2 acting as heat insulation and has walls formed of graphite plates 3 held between recesses in graphite posts 4 which are secured to a base ring 6 and a top ring 7. The base ring is adapted to receive a graphite hearth floor 8 on which the charge may stand and has orifices through which the members 9 pass. Hollow graphite pillars 10 support the chamber on cylinders 11 and plates 12 which are let into the mild steel furnace base 13. A cylindrical side casing 16 is provided with a "false" casing 18 formed of distortable steel sheets to take up lateral expansion. A graphite cylinder 26 is bolted to the ring 7 and receives a "plug" 27 containing graphite powder and provided with a tube 29 which fits into a boss 35 in the furnace top 24. The charge may be observed through the tube 29, a window 36, and extension tube and bellows 37, and argon is fed through a pipe 38, provision being made for purifying the gas as it passes round a closed loop; to clean the face of the window the gas may, be riiade to sweep across it. Gas also flows through a pipe (not shown) situated behind a further window through which the interior of the chamber may be observed. Gas outlets may be provided at different parts of the furnace, e.g. through pipes 40 attached to the plates 12. Metal bellows 52 form gas tight seals for the pivoted ends of the members 9 which terminate in water-cooled end pieces 53, water-cooling also being provided on the top of the furnace and on the base 13. The current supply is a six phase delta arrangement derived from a three/six phase step-down transformer operating from a 415 volt, 50 cycle primary supply and having a secondary voltage adjustable between 5 and 20 volts.
Patent GB-703814-A (GB)
Title: Improvements in or relating to the etching of metal objects
IPC: C23F1/42
Filed: 1952-02-07
Abstract: 703,814. Etching. DOW CHEMICAL CO. Feb. 7, 1952 [Feb. 12, 1951], No. 3311/52. Class 100 (2) An etching bath for etching an acid-soluble metal, e.g. in making a printing plate, comprises a mixture of an aqueous solution containing nitric acid, an ester of sulphosuccinic acid and an aliphatic alcohol having from 4 to 12 carbon atoms or an alkali metal compound thereof, and a water-immiscible liquid substantially unreactive with the aqueous nitric acid solution. The aqueous solution may contain from 3 per cent to 50 per cent of nitric acid by weight, preferably 5 per cent to 10 per cent. The amount of the ester or alkali compound thereof may range from 0.003 to 0.004 times the weight of the nitric acid in solution whilst that of the water immiscible liquid may range from 1 per cent to 14 per cent of the weight of the nitric acid solution. Examples of suitable esters are di-isobutyl sulphosuccinate, diamyl sulphosuccinate, dihexyl sulphosuccinate, dioctyl sulphosuccinate and the sodium derivatives thereof. The water immiscible liquid may be a liquid petroleum fraction, e.g. gasoline, benzene, kerosene, coal oil, lubricating oils, turpentine, perchloroethylene, and the diethylbenzenes. The inclusion of the ester and water immiscible liquid increases the ratio of the depth of the etch. to the amount of lateral attack on the metal underlying the parts of the plate coated with a resist. The etching solution may be splashed on the plate.
Patent GB-447302-A (GB)
Title: Improved method of mounting flexible sheet material on a support for printing or other purposes
IPC: B41L29/06
Filed: 1935-02-01
Abstract: 447,302. Printing processes. WHEELWRIGHT, Ltd., J. S., 1, Lower Regent Street, London, and WHEELWRIGHT, J. S., The Corner, Three Elm Lane, Tonbridge, Kent. Feb. 1, 1935, No. 3345. Addition to 416,373. [Class 100 (ii)] The process of printing, stencilling, and otherwise treating sheet material described in the parent Specification is carried out without the application of moisture to the waterproof surfaces of the sheet and its support. The material to be printed is attached to a flexible backing of rubber or other substantially airproof material, and during the printing &c. process this is pressed against an airproof support which may be a glass support, or the support may be a travelling conveyer coated with an airproof substance. The support is attached temporarily to the backing by suction due to the pressing of the two surfaces together by the printing pressure which may be caused by a travelling squeegee.
Patent GB-205419-A (GB)
Title: Pneumatic tyre for vehicle wheels
IPC: B60B9/20
Filed: 1923-02-05
Abstract: 205,419. Tischenbach, L. Feb. 5, 1923. Spring wheels.-In wheels of the kind comprising two metal discs 1, 1<1> the peripheral edges 4 of which are shaped to take the beads of the tyre 5 and which partly enclose an air tube 11, the air tube is moulded in the form of two main annular parts connected by a narrow part 9, the inner part enclosed by the discs being of greater volume than the outer part enclosed by the tyre. The tyre 5 is secured by beaded edges to the flanges 4 of the discs 1, 1<1> which are strengthened by bolts or screwed sleeves 10 accommodated within sleeves 13 formed in the air chamber. A crescentshaped member 6, of canvas or the like, is used to reinforce the tyre 5. The sleeves 13 may be of metal secured in a fluid-tight manner to the walls.
Patent GB-251694-A (GB)
Title: Improvements in or relating to variable resistance devices
IPC: H01C10/32
Filed: 1925-02-06
Abstract: 251,694. Igranic Electric Co., Ltd., and Wright, S. R. Feb. 6, 1925. Resistance coatings; variable resistances. - A filament rheostat is combined in a single unit with a high variable resistance which functions as either a potentiometer or a grid leak and which is of the kind having its resistance in the form of a film of graphite or other soft material. The movable contactor of the high resistance and one end of the resistance element of the filament rheostat are in permanent electrical connection with a common terminal which may be the earth terminal. The filament rheostat may comprise a spiral spring 1 on a drum rotated by a hollow shaft 11 and knob 12 and held in position by a. spring washer 22, the drum comprising an insulat. ing annulus 18 and metal parts 19, 20. One end of the resister 1 is connected to the metal disc 19 and so to a terminal 7 through the metal hub 20, the metal frame 15, and a metal rod 15<a>. The tangential contactor 3 for the resister 1 is mounted on and insulated from the rod 15a, carries a terminal 8, and may be lifted out of contact with the resister 1 by an insulating piece connecting the ends of the resistor 1. The potentio meter comprises a graphite deposit in grooves on a raised circular track in a fixed insulating base 5 secured to the frame 15 by screws 23, and a graphite contactor 6 in a socket 27. A resilient metallic arm 28 carrying the socket 27 is rotated by a central shaft 13 and knob 14 and is connected through this shaft and the frame 15 to the terminal 7. The ends of the graphite deposit are connected to separate terminals 10 through plates 25 and conducting pillars 26 passing through the base 5 and limiting the movement of the arm 28. The knobs 12, 14 are separated by a metallic washer 33, and the knob 14 has a metal core 34. In a unit comprising a filament rheostat and a grid leak, one of the terminals 10 is omitted, an insulating stop being provided to limit the movement of the contactor at this end of the graphite deposit. This deposit is now formed on a nearly plain surface and is burnished to form a hard path by rubbing with metal, the plunger 6 being then of hard metal to continue the burnishing. The Provisional Specification refers to Specification 195,903 and 228,432.
Patent GB-1519736-A (GB)
Title: Photooxidation destruction of organic wastes
IPC: A62D101/20
Filed: 1976-01-28
Abstract: 1519736 Photooxidative destruction of organic wastes CHARLES F KETTERING FOUNDATION 28 Jan 1976 [21 Feb 1975] 3402/76 Heading C1C In a process for the photooxidative destruction of organic waste present in aqueous effluent in the presence of air or oxygen under the action of visible light, the reaction is carried out in the presence of biodegradable gelled metal alginate beads in which the metal is a di- or tri-valent metal, the beads having been stained with a dyestuff selected from cationic acridine, thiazine, triphenylmethane, phenazine and phthalocyanine dyestuffs, the dyestuff being maintained under at least weakly alkaline conditions. The di- or tri-valent metal is preferably barium, calcium, strontium, aluminium, lead, iron or copper. The alginate beads may contain an alkaline reacting filler to provide at least a part of the alkaline conditions, preferred fillers being magnesium oxide, magnesium carbonate, calcium carbonate, strontium carbonate and barium carbonate. The above process is particularly suitable for removing phenolic compounds from aqueous effluents.
Patent GB-1336541-A (GB)
Title: Beta-alkylthio-aldehydes
IPC: A23L27/20
Filed: 1972-01-25
Abstract: 1336541 Odour and flavour compositions L GIVAUDAN & CIE SA 25 Jan 1972 [26 Jan 1971] 3443/72 Heading A2B [Also in Divisions AS C2 and C5] Odorant and/or flavouring compositions (e.g. for foods and beverages) comprise #-alkylthioaldehydes of general formula wherein R<SP>1</SP> is -H or C 1-6  alkyl, R<SP>2</SP> is phenyl or a saturated or olefinically-unsaturated C 2-7  aliphatic hydrocarbon group and R<SP>3</SP> is a C 1-6  alkyl group.
Patent GB-389961-A (GB)
Title: Manufacture and production of vat dyestuffs of the anthraquinone series
IPC: C09B5/00
Filed: 1932-02-05
Abstract: 1.2<1>-Dianthraquinonylsulphide or its halogen substitution products or oxidation products of these compounds of the character of sulpoxides, are heated with zinc chloride to temperatures above 200 DEG  C.  The formation of the dyestuff is promoted by the presence of copper compounds, such as cuprous or copper chloride. In an example, 1.2<1>-dianthraquinonylsulphide is heated with zinc chloride in presence of copper chloride to 305-310 DEG  C.  The product on extraction with chlorbenzene leaves a residue dyeing cotton maroon shades; the solution yields a product which on fractional precipitation from sulphuric acid dyes cotton powerful blue-green shades from the vat; it is assigned the constitution of a 4.10<1> : 10.4<1>-benzdianthronylene-5.3<1>-sulphide.  When the halogenated sulphides are used as starting materials the halogen is more or less completely eliminated; thus 8- or 5-chloro-1.2<1>-dianthraquinonylsulphide yield the same dyestuff as above, as also does 1.2<1>-dianthraquinonylsulphoxide (sulphoxides are obtained by oxidizing by means of ammonium persulphate or nitric acid). The Provisional Specification relates to the treatment of 1.2<1>-dianthraquinonyl sulphide or its derivatives with zinc chloride preferably at temperatures above 200 DEG  C., and the use of alkyl, carboxy, cyano, and alkoxy derivatives is also mentioned.
Patent GB-468083-A (GB)
Title: Improvements in flushing valves
IPC: E03D3/12
Filed: 1936-02-05
Abstract: 468,083. Slow - closing valves. ELDER, D. Feb. 5, 1936, No. 3486. [Class 135] [Also in Group XXXII] A flushing valve g, Fig. 1, is lifted from its seat formed on the valve casing a by an unobstructed tubular member or sleeve n which is immediately returned to its inoperative position when the operating handle k is released, the flushing fluid passing through the member n whilst the closing of the valve is retarded by a dashpot d containing a body of fluid isolated from the flushing fluid. The valve g is connected to the dashport plunger f by a stem f passing through a gland i. The sleeve n is actuated by a crank-pin m controlled by the handle k which may have a return spring l. The upward movement of the plunger f is unimpeded due to the opening of a non-return valve o controlling passages o<1>, but is limited by an adjustable screw p mounted in a cover d and concealed by a removable cap q. This screw controls the duration of the flush. The rate at which liquid leaks back into the cap d depends on the clearance o<2> between the plunger f and its cylinder. A pawl r mounted on the sleeve n is held in engagement with one of the ratchet teeth r<1> to prevent a second actuation of the sleeve n before the flushing cycle is completed. A spring-loaded pawl which is held out of engagement with the teeth by an annular recess in the valve face until the sleeve leaves the valve is also shown. The plunger f may be of rubber or leather. Fig. 4, however, shows a metal plunger in which the clearance o<2> is controlled by a dished plate f<2> expanded by a screw p<1> which controls the duration of the flush. In the modification shown in Fig. 6, the plunger fits without clearance in its cylinder, the timing of the flush being controlled by an adjustable screw s<1> which more or less closes openings s<1>. The dashpot cylinder is isolated by a flexible diaphragm s and may contain oil, glycerine, water etc. Any leakage past the valve is shown by a tell-tale pipe t. During the flushing operation any water which has collected in the annular space between the sleeve n and the valve casing a is removed by a syphon pipe t<1>. The inlet b may be shut off after the flushing operation either manually or automatically by a valve-t<2>. In another form, the valve o is replaced by a spring-loaded ball valve and the timing is controlled by a pivotally mounted needle valve. In place of the needle valve a threaded member with a fixed orifice may be used. The valve g may have an additional cup leather below its face h. A spring- loaded detent may be provided to engage notches between the crank-pin m and the handle k so that definite fractions of the full flush are obtained according to the notch engaged. Specification 441,685 is referred to.