baber/WOPTO huggingface dataset:
Patent GB-1094409-A (GB)
Title: Free-machining austenitic stainless steels
IPC: C22C38/42
Filed: 1966-04-27
Abstract: The machinability of an austenite stainless steel containing 0.25 - 0.45% S is enhanced by including 2 - 7% Mn, the contents of Mn and S falling below the graph M in Fig. 7.  The steel preferably has the following percentage composition: .C.up to 0.5 .S.0.25 - 0.45 .Mn.2 - 7 .Cr.16 - 30 .Ni.5 - 26 .Si.0 - 3 .Mo.0 - 4 .Zr.0 - 1 .Cu.0 - 4 .Se, Te, Pb, Nb.0 - 0.5 each .Ta, Ti.0 - 2 in total .N.0 - 0.35 .P.0 - 0.5 .Fe.the remainder
Patent GB-597533-A (GB)
Title: Improvements relating to autographic registers
IPC: B41L5/08
Filed: 1945-07-18
Abstract: 597,533. Memorandum appliances. WILLIAMS, W. P. (Standard Register Co.). July 18, 1945, No. 18452. [Class 16] In an autographic register, the continuous strip provided with longitudinally spaced perforations or like formations, is fed by a pin on a reciprocating carrier and is held by a stationary pin on the apparatus, the pins being so formed that the strip can be fed only in one direction. As shown in Figs. 1, 4, and 6, the base 2 resting in a recess in the top of a table 1 or the like has a tracker board 4 over which a frame 14 connected to two side slides 10 and connected by a bar 16 can be reciprocated. Each slide 10 moves in a grooved track 9 at the side of the tracker board 4 and carries at its forward end a forwardly inclined feeding pin 13 adapted to engage a perforation in the margin of a web of connected record sheets 5 which is supplied through a slot at the back of the base 2. At its front end the tracker board 4 has two forwardly inclined pins 18 adapted to engage a second pair of perforations in the sheet 5 and hold it while the frame 14 is moved to the rear. Ledges depending from the frame 14 near the pins 13 press the sheet into engagement with the pins. In a modification, Figs. 8, and 11, a cross-bar 24 connecting the slides 10 at their front ends has a recess 26 with two forwardly inclined half pins 13a at the sides thereof adapted to engage perforations in the top of a sheet. A bar 22 at the front of the tracker board 4 has two forwardly inclined half pins 8a mounted on a projection 27 and adapted to engage in the same perforations as the pins 13a when the frame has been moved forward, each half pin 18a co-operating with a half pin 13a to form a whole pin in this position.
Patent GB-182329-A (GB)
Title: Improvements in india-rubber soles or pads for application to boots and shoes
IPC: A43C13/04
Filed: 1921-07-08
Abstract: 182,329. Simpson, M. July 8, 1921. Protectors, construction of.-In an indiarubber sole pad of the kind in which thick wearing pads extending across the sole are connected by thin portions which may be cut for adjustment, the thick pads have formed in each, or in each except the rearmost pad, a thin portion or groove 15, 17 to permit transverse adjustment, and at the toe end of the groove a circular recess 9 is provided, to facilitate the opening out of the pad after cutting. A canvas or other textile fabric backing may be provided at the thick portions only.
Patent GB-256942-A (GB)
Title: Improvement in method of and apparatus for carbonizing coal
IPC: C10B7/02
Filed: 1926-07-26
Abstract: 256,942. Puening, F. Aug. 13, 1925, [Convention date]. Retort furnaces; charging and discharging; applying heat of combustion, methods of.-In a process of carbonizing carbonaceous material such as coal, the charge is supplied in a continuous stream in excess of the amount utilized and the excess coal is returned to be again fed to the carbonizing means. The apparatus comprises an internally heated casting 20 having inclined shelves 21 and surrounded by a rotary casing 22 on which is mounted a hopper 28 and shoot 29, the casing being supported on framework 30 and rotated by gearing 33. Sand or water seals 24, 25 prevent escape of distillates. As the casing rotates the coal flows to the various shelves 21, the surplus passing into a trough 27 from which it is removed by a scraper 41 into a shoot 37. The shoot 29 is pressed by spring plungers 38 against the shelves 21 and is partitioned to form supplementary shoots 40, Fig. 4. A series of scrapers 46 secured to the casing clear the coke, which is formed during one revolution of the casing, from the shelves into a stationary trough 49 from which it is removed by ploughs 50 secured to the casing. The distillates are removed through an outlet 53. To prevent the gas obtained entering the coal trough 27, dry coal gas is admitted to this trough through a pipe 54 to raise the pressure therein. The cylinder 20 is heated by hot gases from an inlet 12. A piston 18, Fig. 1, working in conjunction with valves 65, 66, Fig. 2, sets up when moving in one direction a flow through conduit 15, chamber 13, and passages 67 - - 73 to chamber 14 and conduit 16, a pressure and vacuum effect being produced in the conduits 15, 16 respectively and a small amount of gas being evacuated through pipe 64 to permit of entry of hot gas through conduit 12 this hot gas entering the chamber 14 through perforations 77 in one wall of the conduit 12. On its return stroke the piston forces the gases in an opposite direction. In a modification the coal is fed to the shelves by a series of rotary discs. Specifications 208,170 and 210,062 are referred to.
Patent GB-516369-A (GB)
Title: Improvements in or relating to the manufacture of titanium pigments
IPC: C09C1/36
Filed: 1938-06-23
Abstract: 516,369. Titanium pigments. BRITISH TITAN PRODUCTS CO., Ltd., OPPEGAARD, A. G., and STOPFORD, C. J. June 23, 1938, No. 18645. [Classes 1 (iii) and 95] In the production of titanium pigments by calcination of the product of hydrolysis of a titanium salt solution, there is caused to be present in the product subjected to calcination niobium or tantalum or a mixture of the two in an amount equivalent to not more than 2 per cent. of the weight of the titanium present calculated as TiO 2.The invention may be applied to straight titanium pigments and to composite titanium pigments containing an extender such as barium or calcium sulphate. In carrying out the process niobium oxide or potassium niobate may be added to the titanium ore, to the solution to be hydrolysed, or to the hydrolysis product; or a niobium ore may be added to the titanium ore to provide the desired quantity of niobium ; or a titanium ore free from niobium and/or tantalum may be blended with a titanium ore containing these metals in such proportions that the product subjected to calcination has the desired content of niobium and/or tantalum. Calcination may be effected in the presence also of additive agents hitherto used, such as phosphoric-acid and phosphates, fluorine compounds, soluble alkali metal compounds, for instance, potassium carbonate, antimony compounds, or boric acid and borates. Temperatures above 925‹C. and even up to 1,100 ‹C. may be used for the calcinations. Examples of operation are given.
Patent GB-340227-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/26
Filed: 1929-06-18
Abstract: 340,227. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, CLOUGH, F. H., Kilsby, near Rugby, and MAYO, C. G., 17, Alexandra Road, Rugby. June 18, 1929, Nos. 18702 and 19336. [Class 38 (ii).] In a potential transformer for use on high voltage circuits the high voltage winding 6 is formed of concentric layers of turns so arranged that the insulation between radially adjacent turns is proportional to the number of turns and therefore the voltage between them and the axial length of the layers progressively decreases as the distance from the axis increases. The high tension conductor may be connected to the outermost layer of turns, in which case the secondary winding 2 is placed next to the core, and a metallic cylinder 8 connected to the high tension line is placed over the outside of the winding in order that voltage stresses due to surges are distributed equally through the winding. For the same reason, the core is connected to the high tension line if the innermost layer is made the high voltage end, the secondary winding in this case being placed externally of the high voltage winding. Paper with oil impregnation is used for the internal insulation. The transformer may be housed in a bushing-type insulator, the winding being arranged on a straightthrough core provided with end rings serving as polepieces, the return flux path being in air. Specifications 173,606 and 145,675, [both in Class 38 (ii), Electric currents, Converting &c.], are referred to.
Patent GB-1139918-A (GB)
Title: Dialkylamine derivatives, polymers produced therefrom and their use as flocculating agents
IPC: C02F1/54
Filed: 1966-04-28
Abstract: 1,139,918. Diallylamine derivatives. CALGON CORP. 28 April, 1966 [25 May, 1965], No. 18732/66. Heading C2C. [Also in Divisions C1 and C3] The invention comprises diallylamines and hydrohalide salts thereof and quaternized diallyl amines of Formulµ (I) and (II) respectively where R is a group derived by condensing a compound of the formula through a Michael addition reaction with diallylamine, R<SP>1</SP> is a group derived by condensing a compound CH 2 =CR-R 3  through a Michael addition reaction with diallylamine, R<SP>11</SP> is -CH 3 , -CH 2 CH 3 , -CH 2 OH, -CH 2 CH 2 OH or -CH 2 -C(O)OM, M is hydrogen or alkali or alkaline earth metal, A- is a non-interfering anion, R 1  is hydrogen or -CH 3 , R 2  is hydrogen or C 1-4  alkyl and R 3  is an electron-withdrawing (activating) group. Compounds of Formula (I) may be obtained by condensing an ester or amide, or a salt thereof, of acrylic or methacrylic acid with diallylamine, compounds of Formula (II) may be obtained by reacting compounds of Formula (I) with a quaternizing agent, e.g. a dialkyl sulphate, ethylene oxide or an alkyl halide, or they may be obtained by reacting an aqueous solution of a disubstituted amine with two moles of allyl chloride.
Patent GB-532668-A (GB)
Title: Improvements relating to governers for wind driven propellers
IPC: F03D7/02
Filed: 1939-06-28
Abstract: 532,668. Wind motors. ALBERS, J. R.. and ALBERS, G. H. June 28, 1939, No. 18770. [Class 110 (iii)] A wind-motor with screw propeller blades 10 is provided with wind-brake surfaces 21 that normally lie in the circle of their rotation, but, at high speeds, are moved by centrifugal force into positions such as 35, 37. The surfaces 21 are pivoted, away from their centres of gravity, to an arm 16 fast on the propeller boss and a.re linked by rods 26 to a. pivoted lever 22. Springs 31 oppose the action of centrifugal force.
Patent GB-909448-A (GB)
Title: Improvements in or relating to railway buffers
IPC: B61G11/08
Filed: 1960-05-27
Abstract: 909,448. Railway stops. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. May 27, 1960 [May 29, 1959], No. 18820/60. Class 104 (2). [Also in Group XXXII] A railway stop comprises a casing 10 and a telescopic plunger 14, a rubber-metal spring 33, 34 between the head 15 and a piston 25, a skirted piston 26 telescopically mounted within the piston 25, a rubber-metal spring 35, and a synthetic nitrile rubber ring 32 which after an initial compression of the stop is expanded into frictional engagement with the plunger 14. In the unloaded condition of the stop the rubbermetal springs are pre-compressed by a bolt 23 and nut 24. In operation, a buffing load first compresses the rubber-metal springs in series until the skirt 31 of the piston 26 abuts the plate 12, thereafter the load is taken by the spring 33, 34 and by the flexible ring 32 which expands radially to exert a frictional force on the plunger 14. The rubber-metal springs are so matched that over their range of operation the spring 35 has never a greater flexibility than half that of the spring 33, 34, Fig. 2 (not shown).
Patent GB-1425828-A (GB)
Title: Electron beam tube protection circuit
IPC: H01J31/58
Filed: 1972-04-24
Abstract: 1425828 Cathode-ray tube circuits RCA CORPORATION 24 April 1973 [24 April 1972] 19017/72 Heading H4T The beam of a cathode-ray tube (which may be a display tube, a pick-up tube or a storage tube) is cut-off on failure of either (or both) of the horizontal and vertical deflection signals. As shown in Fig. 1, when, in normal operation, horizontal deflection rate signals H and vertical deflection rate signals V are present at respective input terminals 10, 46 respective transistors 12, 40 are maintained conducting and prevent the voltage across respective capacitors 28, 54 from rising to a level such as to cause respective transistors 14, 44 to conduct. The collector of transistor 14 is thus held positive and forms one input to terminal 10 of an NAND gate 80 whilst the emitter of transistor 44 is held negative and via an inverter circuit 70, forms a second, positive, input to terminal 11 of NAND gate 80. Under these conditions gate 80 operates to pass mixed horizontal and vertical blanking signals (supplied to terminal 9) via an inverter 90 to a blanking amplifier 110 which controls beam blanking of tube 120 in the usual manner. When however, either or both of the inputs to terminals 10 and/or 46 is/are missing transistors 12 and/or 40 become(s) non-conductive allowing the voltage across capacitors 28, 54 to rise to such a value that the base voltage on transistor(s) 14, 44 rises sufficiently for these to conduct so that the collector voltage of transistor 14 and thus terminal 10 of NAND gate 80 drops to zero and/or the emitter voltage of transistor 44 rises to drive terminal 13 of inverter 70 positive and thus terminal 11 of NAND gate 80 also falls to zero. In this condition output terminal 8 of the NAND gate goes positive and produces zero volt output at terminal 6 of inverter 90 which causes amplifier 110 to produce a blanking pulse for the tube beam.  The values of resistor 22 and capacitor 28 are such that the base of transistor 14 goes sufficiently positively within 100 microseconds for it to conduct and the time constant provided by resistor 62 and capacitor 48 is such that if the amplitude of the vertical sweep input to terminal 46 is less than half its normal value transistor 40 will not be rendered conductive and beam blanking will result so that burning of the tube target when less than half its surface is scanned is prevented. When the tube is a storage tube and is employed in a system employing an audio frequency communication link (e.g. a video telephone) operation is required at the standard 60 cycle field rate and also at a rate of 60/16 or 60/8 cycles and to prevent the voltage across capacitor 54 from causing transistor 44 to conduct during the slower scan(s) the rate of charging of this capacitor is reduced by means of a shunt circuit (Fig. 2, not shown). The inverters 70, 90 and the NAND gate 80 may all form part of a commercially available integrated circuit.
Patent GB-573100-A (GB)
Title: Improvements in or relating to hand punches for statistical records
Filed: 1943-11-15
Abstract: 573,100. Hand punches. GAUSDEN, A. H. Nov. 15, 1943, No. 19030. [Class 31 (ii)] [Also in Group XXIII] A hand punch for perforating record holes in statistical cards comprises side plates 1 on which is mounted a bridge 12 disposed across a stepwise moving slide 8 supporting the card, a punch 23 on a slider 18 adjustable along the bridge to a position corresponding to any index point in a column of holes, a fixed stripper plate 4, with a column of holes located above the slide 8 which has a number of columns of holes corresponding with the number of columns on the cards, and means for depressing the punch associated with step-by-step mechanism for moving the slide under the bridge. The slider 18 carrying the punch 23 is locked in adjusted position along the bridge by means of spring pressed detents 26 engaging teeth 22 on the side plates 12 of the bridge and is released to make the transverse adjustment of the slider by tilting a handle 28 having a cam end 24 which rocks on the bed 17 thus lifting the pins 25 passing through holes in the detents 26 and raising the latter out of engagement with the teeth 22. Punching is effected by gripping of the fixed and moving lever handles 35, 36 which latter is pivoted at 38 and actuates side toggle links 41 carrying a cross bar 33 the ends of which are connected by side links 31 to the ends of the bridge 12, springs 29 raising the latter after the handles are released. As the punch rises a link 42 connected to the joint 39 of the toggle actuates a pawl 45 engaging ratchet teeth 46 on the slide and moves the slide and card to the next punching position. The slide 8 may be graduated according to the number of columns of record holes on the cards and is arrested in exact position at each stepwise movement by a spring presser ball 49 coacting with a row of holes in the slide. A stop 55 may be set in adjustable position along the slide coacting with the side plates 1 to reset the slide for punching to start at the same column on a succession of cards.
Patent GB-1215405-A (GB)
Title: Drive circuit
IPC: H01F7/18
Filed: 1968-04-23
Abstract: 1,215,405. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 23 April, 1968 [15 May, 1967], No. 19062/68. Heading H3T. [Also in Division H2] Alternative inductances are energized by means including a capacitor in parallel with the energizing supply and which is charged by energy derived from another of the inductances when it is switched off. Fig. 4 shows a stepping motor circuit in which the motor coils are energized in pairs in the sequence 12, 14: 14, 13: 13, 15: 15: 12 or individually. When 12 is switched off the stored inductive energy discharges through winding 13, reversely through transistor 20 and through diode 29 to capacitor 40. When subsequently winding 13 is energized by rendering transistor 20 conducting the capacitor provides a high voltage initial surge to cause the current to build up rapidly, the maintaining current being supplied through a diode 48. The other windings are energized in a similar manner. Supply 44 maintains the capacitors charged when the motor dwells longer than the storage time. If only one coil is to be energized at a time a single capacitor will suffice.
Patent GB-639941-A (GB)
Title: Improvements in or relating to the refining of fatty acids
IPC: C11C1/08
Filed: 1947-07-17
Abstract: Fatty acids are purified from the resinous, tarry materials also present in the crude fatty acids by dissolving the latter in a liquefied, normally gaseous hydrocarbon followed by heating the solution under pressure to precipitate a second liquid phase containing impurities.  The resinous tarry materials are only slightly soluble in the solvent and may be preliminarily separated off.  The solvents specified comprise liquid ethane, liquid propane, and liquid butane, and the fatty acids treated comprise stearic, oleic, palmitic and linoleic.  The lower second liquid phase containing most of the colour concentrated therein also contains further impurities, solvent and a small amount of fatty acid, and may be separated off.  The purer upper layer is heated under pressure through another temperature increment and the procedure repeated.  A colourless solution of the fatty acid in the hydrocarbon is finally obtained from which water-white fatty acid may be recovered by distilling off the solvent.  The fatty acid may also be recovered from the second liquid phase by washing with the solvent, preferably in counter-current.
Patent GB-510109-A (GB)
Title: Improvements relating to the acoustic treatment of rooms or halls
IPC: E04B1/84
Filed: 1938-06-28
Abstract: 510,109. Acoustic treatment of rooms. STANDARD TELEPHONES & CABLES, Ltd. June 28, 1938, No. 19145. Convention date, Aug. 19, 1937. [Class 13] A thin flat sound-absorbing unit containing rock wool, spun glass, or gypsum 19 between perforated metal sheets 11, is slung on edge from a ceiling. The mass of the casing is sufficient to make the unit substantially inert under the pressure of the sound waves. Wooden spacers 13 may be used to keep the material 19 out of contact with the perforated sides. Sifting-out of the absorbing material under vibration may be prevented by employing a spring suspension 18, of such nature that the resonant frequency of the unit is below that of the more important disturbing vibrations, e.g. when mounted over machines.
Patent GB-1502099-A (GB)
Title: Food slicing apparatus
IPC: B26D7/32
Filed: 1975-05-02
Abstract: 1502099 Delivering sheets BERKEL & PARNALL Ltd 2 May 1975 [2 May 1974] 19233/74 Heading B8R A two-speed conveyer 10 for batching food from a slicing machine is driven by two motors 31, 33 which, via electrically operated clutches 21, 22, are selectively engaged with drive shaft 18 to thereby form shingled batches. Switch 24 actuates clutch 22 to produce slow drive from motor 31 and after a preselected number of turns of slice 45 a detector 42 produces a signal which actuates switch 23 to engage the faster drive from motor 33 thus causing a gap between batches of sliced food. In another embodiment clutch 22 may be replaced by an over-running clutch.
Patent GB-734554-A (GB)
Title: Improvements in or relating to pit props
IPC: E21D15/28
Filed: 1953-07-10
Abstract: 734,554. Pit-props. EISENWERK WANHEIM GES. July 10, 1953 [July 11, 1952], No. 19247/53. Class 20 (2). The inner member 3 of a telescopic pit-prop is clamped in the outer member 1 by a lock 2 comprising a double-armed lever 7 pivoted in the lock on a pivot-pin 6 and engaging the inner member by one arm 9, a wedge 5 being driven between the other arm 7 and the mould member. A member 4 is interposed between the inner member 1 and the arm 9 and the wedge 5. The inner member may widen upwardly to increase the clamping pressure as the prop collapses. An eccentric may replace the wedge 5.
Patent GB-911403-A (GB)
Title: Self-sealing couplings for fluid lines
IPC: F16L29/04
Filed: 1961-05-29
Abstract: 911,403. Pipe couplings. DUFFIELD, F. R. May 29, 1961, No. 19247/61. Class 99(1). In a self-sealing coupling for high-pressure hydraulic or pneumatic pipe lines and which comprises first and second coupling members adapted to screw one into the other and to open valves in each member against the action of springs respectively tending to hold the valve members on to the seats thereof, the first member includes a coupling part 12 and a fixed valve member 17, constituting a valve seat, surrounded by an annular sliding part 19, constituting a valve member upon which one of the springs 21 acts, the member 17 and part 19 having normally-aligned, truncated, conical faces which engage upon the displaceable valve member 38 and a coupling part 39 respectively of the second coupling member during coupling to force the displaceable valve member and the part 19 from the seats thereof. As shown, the coupling part 12 is provided with a tubular valve member 17 having a head portion 18 and fluid ports 29, and an annular part 19 incorporating a sealing ring 25 slidable on the member is urged by a spring 21 on to an annular shoulder 24 of the portion 18; a bleed hole 27 is provided in the member 17. The cooperating coupling part comprises three tubular members 30, 33 and 40, the member 40 having an inner frustoconical surface 39, on which seats the sealing ring 44 of a spring-loaded valve 38, and a screwthreaded portion 42 which is engageable with a screw-threaded part 14 of the part 12. Relative rotation between the members 30 and 40 is prevented by a grub-screw 48, and the member 30 has a vent hole 59. In coupling the parts, the forward end of the member 40 abuts the member 19 to displace the latter and uncover the ports 29, and the valve 38 is displaced axially by the member 17; fluid pressure also assists in opening the valve 38. A shoulder 47 coincides with the end of the member 30 to indicate when the members 12 and 30 are fully screwed together. A handwheel 60 on the member 30 facilitates tightening of the coupling member; alternatively, the member carries a protective shroud which may be rotatably mounted on the member. In modifications, (a) the valve in the part 12 includes a stem 50 fixed in a web 51 having fluid ports 58, and (b) the valve in the cooperating coupling part is a spring-loaded poppet valve and a leather washer is located in front of the 0-ring 26 in the ridge 23 of the part 19.