baber/WOPTO huggingface dataset:
Patent GB-1381492-A (GB)
Title: Menufacture of springs
IPC: B21F35/02
Filed: 1971-02-26
Abstract: 1381492 Bending spring ends BRITISH UNITED SHOE MACHINERY CO Ltd 25 Feb 1972 [26 Feb 1971] 5503/71 Divided out of 1290322 Heading B3E In a machine for forming a loop at an end of a coil spring as in parent Specification 1,290,322, the end coil(s) 742 of the spring is first separated by an edged or pointed tool 702, the coil is then engaged, and preferably further bent up, by a second tool 716 sliding in a groove in tool 702, finally a bifurcated tool 722 (one leg 728 shown), is advanced to engage the coil and pass either side of tool 718. The surface 736 of leg 728 is arcuate as seen in plan, so as to engage the coil in hooklike fashion, see Fig. 5 (not shown). The leading face of tool 716 may be inclined to form an acute angle with its base, see Fig. 6 (not shown).
Patent GB-763144-A (GB)
Title: Cooling milling cutters with carbon dioxide
Inventor: PHILIP THOMAS BRUCE
IPC: B23Q11/10
Filed: 1954-02-25
Abstract: 763,144. Milling-cutters; cooling cutting- tools. DISTILLERS CO., Ltd. Feb. 2, 1955 [Feb. 25, 1954], No. 5528/54. Class 83 (3). A method of cooling a milling-cutter A comprises directing a stream of carbon dioxide in the form of gas, liquid or snow, or in any combination of these states. at the cutting edge of the tooth where most heat is being generated, through a perforation C in the cutting-edge support of an adjacent tooth. More than one perforation C may be provided in each tooth, and the coolant may be directed through perforations in both the preceding and succeeding teeth, at the cutting edge in the cutting position. Carbon dioxide snow may partially coat the teeth before they enter the cutting zone. Additional streams of carbon dioxide may be used to further cool the cutter or the work B. The carbon dioxide may be supplied from capillary tubes, as in Specification 749,457, and may be in the form of snow suspended in a light-oil or other liquid, as in Specification 762,775.
Patent GB-1284647-A (GB)
Title: Decoder for binary signals
Inventor: UNGERBOECK GOTTFRIED JESEF
IPC: H04L25/03
Filed: 1970-02-05
Abstract: 1284647 Telegraphy INTERNATIONAL BUSINESS MACHINES CORP 5 Feb 1970 [18 March 1969] 5556/70 Heading H4P In a receiver for polar binary signals which reduces noise and interbit-interference, the incoming signal of bit repetition frequency 1/T after passing through a matched filter 1 enters a delay line 2 to which are tapped at intervals of T non-linear transducer circuits 3, except at the centre tapping where there is connected a linear transducer circuit 3A. The outputs of the transducer circuits are summed (4) and the sum sampled (5) at a rate 1/T; the sign of the sample defines the binary value of a received signal bit which is regenerated by a pulse former 6. A mathematical derivation of the coefficients of the amplifiers is provided. Each amplifier consists of two oppositely poled diodes, both connected to the junction of two series connected resistances (Fig. 3, not shown).
Patent GB-952254-A (GB)
Title: Improvements in or relating to the manufacture of ornaments
Inventor: HUXLEY HENRY BRIAN
IPC: A44C1/00
Filed: 1962-02-14
Abstract: 952,254. Attaching articles to wearing apparel. H. HAWKINS (CHAINS) Ltd. Jan. 31, 1963 [Feb. 14, 1962], No. 5613/62. Heading A3H. A tassel bar assembly comprises a bar provided on one side with a pair of integrally formed projections adapted to enter into a pair of corresponding apertures formed in an attachment strip and to be riveted thereto and a plurality of further integrally formed projections adapted to enter into corresponding apertures formed in a mounting plate and riveted thereto, the mounting plate having a plurality of hook portions to which ball and chain assemblies are connected. The bar 10 has a pair of projections 13 which engage in holes in the attachment strip 12 and are riveted over and a series of projections 14 which engage in holes in the mounting plate 15. The mounting plate has a series of hook portions 15a to which ball and chain assemblies as used in masonic regalia are attached. Each of the projections 13 is formed with a shoulder to space the attachment strip from the bar.
Patent GB-396470-A (GB)
Title: Heating water or other heat absorbing and conducting medium for use in process plants
IPC: F01K9/00
Filed: 1932-02-25
Abstract: 396,470. Factory liquid-heating installations. BABCOCK & WILCOX, Ltd. and DAVY, C. H., Babcock House, Farringdon Street, London. Feb. 25, 1932, No. 5620. [Class 64 (i).] Liquid for use in process plants is led from a tank 12 and heated, first in surface heat exchangers 6, 8 by the exhaust steam of a turbine 3 and then electrically heated in chamber 14 by a heater which may be supplied with power by an auxiliary electric generator 5 driven by the turbine.
Patent GB-1106800-A (GB)
Title: Controller
IPC: H02P25/14
Filed: 1967-02-07
Abstract: 1,106,800. Control of D.C. motors. NEW YORK AIR BRAKE CO. 7 Feb., 1967 [3 March, 1966], No. 5698/67. Heading H2J. A series motor 11 is supplied from A.C. mains L1, L2, through triac 13 which is triggered by diac 15 associated with timing circuit 16. Voltage pulses in synchronism with the A.C. power are supplied to the timing circuit from generator 17 through a resistor 18<SP>1</SP> across which is developed a variable control voltage. The speed of the motor and its direction of rotation are determined by the magnitude and polarity of the control voltage. The motor is adapted to vibrate about a null position when the control voltage is zero. A pair of Zener diodes 24 and current-limiting resistor 24a are connected across leads L1, L2, to render the voltage of generator 17 independent of fluctuations in the power lines. The triac 13 may be replaced by a pair of silicon controlled rectifiers in a bridge circuit which also comprises diodes. The silicon controlled rectifiers are gated by pulses from a transformer having the diac 15 in its primary circuit. A step-down transformer may be used to reduce the voltage applied to the pulse generator, the secondary circuit of this transformer comprising a limiting resistor associated with a Zener diode which forms part of a bridge rectifier network.
Patent GB-1089667-A (GB)
Title: Improvements in or relating to anti-water hammer devices
IPC: F16L55/053
Filed: 1965-02-10
Abstract: 1,089,667. Pressure relieving devices. REGIE NATIONALE DES USINES RENAULT. Feb.10, 1965 [Feb. 11, 1964], No.5761/65. Heading F1P. [Also in Division F2] An anti-water-hammer device comprises a rigid chamber 1, 2 completely occupied by a rubber cushion 5 having air-filled cells 6, the arrangement being such that when an excess pressure exists in an hydraulic circuit connected to the chamber by a pipe 4, the rubber cushion deforms and the air is compressed in the cells to temporarily admit liquid into the chamber. The cells 6 may inter-communicate.
Patent GB-433929-A (GB)
Title: Improvements in sheet fed two-colour rotary printing machines
IPC: B41F11/00
Filed: 1935-02-22
Abstract: 433,929. Printing-machines. DRESDENLEIPZIGER SCHNELLPRESSENFABRIK AKT.-GES., Coswig Bez, and HORN, H., 48, Eisenstuckstrasse, both in Dresden, Germany. Feb. 22, 1935, No. 5784. [Class 100 (ii)] A sheet-fed two-colour rotary machine is constructed with one impression cylinder b co-operating with two plate cylinders a, a<1> of equal diameter, which may be arranged either for direct lithographic or for intaglio printing, or both, and the first plate cylinder a, together with its inking and damping or scraping apparatus, lies above the horizontal plane through the centre of the impression cylinder b, and within the space bounded by the vertical planes x, y, respectively through the edge f of the delivery pile, and the crown point h of the plate cylinder a facing the feed table. A feed cylinder i is arranged between the table g and the cylinder b ; in another arrangement the cylinder b takes the sheets direct from the table g and the path of the delivery chains is modified accordingly.
Patent GB-765413-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1955-02-28
Abstract: 765,413. Photographic objectives. PAILLARD SOC. ANON. Feb. 28, 1955 [May 5, 1954], No. 5835/55. Class 97(1) In an objective comprising two divergent meniscus doublets between two simple convergent components the radius of curvature of the cemented surface of the second component is greater than twelve times the focal length F of the objective, the radii of the cemented surface of the third component is between .55F and .75F. the refractive index of the divergent element of the third component is greater than that of the convergent element thereof which is greater than or equal to that of the fourth component which is greater than 1.70, the arithmetic mean of these three refractive indices being at least 1.72 of the thickness of the convergent element of the second component being at least .18F. Numerical data are given for one example of the objective shown.
Patent GB-608520-A (GB)
Title: Production of azo dyestuff images from asymmetrical n-aryl hydrazine photographic developers
IPC: G03C7/26
Filed: 1946-02-25
Abstract: N-Acyl-N-arylhydrazines are prepared by reacting aryl hydrazines with phthalic anhydride, acylating to replace the a -hydrogen atom by an acyl group, and splitting-off the phthalyl group. N-Benzoyl-N-phenylhydrazine is prepared by fusing together phenyl hydrazine and phthalic anhydride to give N-anilino-phthalimide, removing the N-phenylphthalhydrazide also formed, acylating with benzoyl chloride in the presence of sodium hydroxide, and splitting-off the phthalyl group by treating with hydrazine and hydrogen chloride.  a -Carbamyl and substituted a -carbamyl aryl hydrazines are prepared by reacting N-anilinophthalimide with isocyanic acid or an ester (alkyl, aralkyl, or aryl) thereof and removing the phthalyl group as above.  2- and 2 : 4-substituted semicarbazides are prepared by reacting acetone phenylhydrazone with isocyanic acid or an ester thereof followed by hydrolysing off the acetone group. Thiosemicarbazides may be similarly prepared by using isothiocyanic acid or esters thereof.  2 : 4-Diphenylthiosemicarbazide may be prepared by reacting phenylhydrazine with phenyl isothiocyanate.  a -Sulphonyl aryl hydrazines are prepared by reacting N-anilino-phthalimide with an alkyl or aryl sulphonyl chloride and splitting-off the phthalyl group.  N-Aryl-N-aminoguanidines are prepared by reacting aryl hydrazines with cyanamide.  a -Cyano aryl hydrazines are prepared by reacting N-anilino-phthalimide with cyanogen halide (bromide) and splitting-off the phthalyl group.
Patent GB-625767-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L17/035
Filed: 1947-02-28
Abstract: 625,767. Joint-making packing. EVANS, W. N,. BRITISH TYRE & RUBBER CO., Ltd., and BIRKBECK, J. Feb. 28, 1947, No, 5897. [Class 122(iii)] [Also in Group XXVIII] A rubber or rubberlike ring 13 is bonded to the inner and outer cylindrical surfaces of connection pieces' 10 forming a pipe coupling (see Group XXVIII). The ring has central or offset grooves 16 at the ends. A thin diaphragm 27 of polyvinyl chloride and fabric may be applied to the groove at one end. The ring may be tapered.
Patent GB-384291-A (GB)
Title: Nickel alloys and method for the production of same
IPC: C22C19/00
Filed: 1931-02-25
Abstract: Nickel alloys containing up to 10 per cent of an alkaline - earth metal or magnesium or lithium with or without up to 1 per cent of carbon are improved by rapid cooling from high temperatures followed by a tempering at lower temperatures.  Up to 45 per cent of one or more of the following elements may be present in the alloys: Copper, chromium, cobalt, iron, manganese, vanadium, titanium, tantalum, molybdenum, tungsten, silicon, boron, tin, cerium, aluminium, and zinc.
Patent GB-481866-A (GB)
Title: Method of and means for preparing a web roll for use in web renewing mechanism for printing machines
IPC: B65H19/10
Filed: 1936-09-16
Abstract: 481,866. Feeding webs. HOE & CO., Ltd., R. (Hoe & Co., Inc., R.) Sept. 16, 1936, No. 6073/38. Divided out of 481,743. [Class 100 (i)] In a web-renewing mechanism of the kind in which a new roll is brought up to the speed of the old web by a driving-belt and the expiring web is pressed against a pasted part on the replacement roll, the replacement roll 18 is prepared for pasting by applying to the web end 22 lines of paste 24 which are applied close to the pointed ends and extend parallel to the ends with a gap 25 for registration with the driving-belt. The end 22 is imperforate and is secured to the body of the roll by means of spots 38 of adhesive material which are spaced from the pasted parts 24 in such a manner as to leave a zone, or zones, C, through which the web tears when it commences to be drawn off by the expiring web. The arrows x indicate the lines of tear, and reinforcing strips 44, Fig. 2, or 42, Fig. 3, are applied to the web end near the spots 38 so as to direct the tear through the zones C. The strips 44 preferably extend beyond the web end, and are coated with adhesive to strengthen the attachment of the web end to the expiring web.
Patent GB-824601-A (GB)
Title: Improvements in or relating to the separation of metal salts
IPC: C22B3/26
Filed: 1958-02-25
Abstract: Polymeric hydrocyanic acid or hydrolysed polymeric hydrocyanic acid having gold salts absorbed thereon, from aqueous solutions of such salts with, or without, a salt or salts of other metals having a standard potential more negative than + 0.4 and an atomic number of not less than 29, is eluted with an eluant comprising aqueous hydrochloric acid and one or more hydrophilic organic liquids to selectively recover gold.  The organic solvent is at least 50% of the eluant and may be methanol, ethanol, acetone, methyl ethyl ketone, diethyl ketone, acetic acid, or ethyl acetate.  Up to 90% organic solvent may be used, but a preferred mixture is 60-80% acetone, 25-15% H2O, and 15-5% HCl, which may be used with elution temperatures up to 50 DEG  C.  Gold absorbed from chlorauric acid solutions may be selectively eluted from HCN containing absorbed salts of platinum, palladium, and/or rhodium.
Patent GB-267147-A (GB)
Title: Improvements in or relating to suction boxes for paper making, cardboard making, cellulose dehydrating and similar machines
IPC: D21F1/50
Filed: 1927-03-04
Abstract: 267,147. Hroch, J. March 4, 1926, [Convention date]. Suction apparatus.-In suction boxes for paper, cardboard, cellulose, and similar machines, wherein three rollers 1, 2. 3 are used together with adjustable end pieces 6 to accommodate the machines to different widths of paper &c. being made, the suction box is made more air-tight by using end pieces formed of a number of plates 7 alternating with similar smaller plates 8, the latter leaving spaces 9 communicating by holes 17 with spaces 15 to which fluid under pressure is supplied by pipes 16. The suction is effected through pipes 11. The end pieces 6 are mounted in supports 12 in the frame 13 and are adjusted by hand wheels 14.
Patent GB-536189-A (GB)
Title: Improvements relating to the testing of engines and airscrews
IPC: G01M9/02
Filed: 1940-04-06
Abstract: 536,189. Testing engines and airscrews. ARMSTRONG SIDDELEY MOTORS, Ltd., YOUNG, H. R., PARAVICINI, T. P. DE., and WALKER, G. E. L. April 6, 1940, No. 6239. [Class 4] For testing an engine and airscrew, the unit, with the engine properly, cowled is mounted in a closed circuit wind-tunnel having means for exhausting the engine exhaust gases and some of the cooling air and for replacing the air thus lost, the cross section of the tunnel being circular in the plane of the airscrew which circulates the air at a speed comparable to that obtaining in flight. An engine nacelle 2 and airscrew 3 are axially adjustable in a tapered circular part 5 of a chamber having guide vanes 9 at the corners. Cooling air and exhaust gases are discharged through a divergent funnel 6, coaxial with the engine, and the air thus lost is replaced through gills 7 arranged at a position of low pressure. The return passage 10 is of larger area than.the working passage 5 and may be of rectangular cross section.
Patent GB-486155-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/72
Filed: 1937-03-03
Abstract: 486,155. Gas producers. STEIN & ATKINSON, Ltd. (Cooper Bessemer Corporation) March 3, 1937, No. 6381. [Class 51 (ii)] [Also in Group XXXV] In a gas-producer plant a heat-sensitive element 12 located adjacent to the fuel bed or in the gas stream controls the fuel supply. As shown a rotary fuel feeder 2 driven by pawl- and-ratchet 8 and 9 from an electricmotor 3 embodies a slipper 10 whose position is adjusted by a reversible electric motor 11 and determines the strokes of the pawl. The motor 11 is controlled from the element 12, and may be replaced by reversible pneumatic or fluid-operated means.
Patent GB-962441-A (GB)
Title: A magnetic recording and reproducing device
IPC: G11B15/52
Filed: 1961-02-21
Abstract: 962,441. Recording television signals. SONY CORPORATION. Feb. 21, 1961 [March 7, 1960], No. 6390/61. Heading G5R. [Also in Division G3] Video information signals are recorded by rotary head assembly 5 associated with magnetic tape 1, whose speed is, by servo means (see Division G3), related to the vertical synch. pulses, a related longitudinal synch. signal being recorded on track 49 by head 44. On play-back, the video signals are passed in known manner to switch 22 where overlapping portions of the two signals are cut off and the signals demodulated at 23. A servo control system is provided for rotating the head assembly in synchronizm with the synchronizing signals played back from track 49 which are compared with signals derived from device 34 which detects the speed of rotation of the head assembly. The switch 22 is also operated in accordance with the device 34. Both for recording and playback, the tape is driven at a speed independent of the recorded information.
Patent GB-493281-A (GB)
Title: Improvements in or relating to packing cases or containers
IPC: B65D5/50
Filed: 1937-03-04
Abstract: 493,281. Packing-cases. ACME CORRUGATED PAPER & BOX CO., Ltd., and HOWARD, E. C. March 4, 1937, No. 6445. [Class 18] A packing-case is provided with an interior resilient or buffer-like enclosure for the contents, such enclosure comprising two strips D, F of corrugated board folded into channel shape and provided with buffers E, G of corrugated board. Unit D fits against one side and the top and bottom closure flaps of the outer cardboard &c. case, and unit F lines the remaining three sides. The buffer strips may be covered with flannel &c. and buffers may also be provided on the exterior faces of the units. Holes D<5> facilitate lifting of the top and bottom flaps of unit D.
Patent GB-374088-A (GB)
Title: Improvements in or relating to fenders for watercraft
IPC: B63B3/14
Filed: 1931-03-02
Abstract: 374,088. Boat fenders. PAINE, H. SCOTT-, of British Power Boat Co., Shipyard, Hythe, Southampton. March 2, 1931 No. 6504. [Class 113 (i).] Cushion fenders comprising alternate layers of rubber 12, 11, 10 and canvas 15, 14, 13 are mounted on the craft with a portion of the fender projecting above the gunwale to present a surface which protects the craft from impact with overhanging objects in addition to the usual broadside blows. The tapered edges of the fender facilitate its attachment by means of nails 17 to the hull.
Patent GB-698389-A (GB)
Title: Expanded clutch or brake
IPC: F16D65/22
Filed: 1952-03-13
Abstract: 698,389. Friction clutches. GENERAL TIRE & RUBBER CO. March 13, 1952 [March 23, 1951], No. 6544/52. Class 80 (ii). [Also in Group XXXIV] Clutches and brakes of the kind having an inflatable rubber tube 15 for moving friction blocks 27 on an inner member 3 radially outwards into frictional engagement with an outer drum 1, have additional solid or hollow rubber rings 24 of round or oval section, initially compressed, with or without cement bonding, between overlapped axial flanges 29 on the inner member 3 and 23 on block-carrying saddles 22, which rings 24 assist retraction of the blocks in opposition to centrifugal force and also transmit appreciable torque during engagement. The remaining torque is transmitted entirely through the inflatable tube 15, and combined transmission through rubber bodies 15, 24 of different natural frequencies reduces surge. The inflatable tube 15 is mounted under initial tension by first inflating it, and may be freed of vulcanised, bonded or cemented either directly to the inner member 3 or to an inner steel band 21 riveted or bolted to the inner member or wedged thereon by the axial bolting together of its coned halves 9, 10 during assembly. The tube 15 may also be bonded to the block saddles 22 or may be free thereof so that when disengaged a cylindrical or oval sectioned air space is formed between the outer surface of the inflatable tube 15 and the saddles 22 to retard heat-transfer and circulate cooling air. In Figs. 8-12 (not shown), the flanges 23, 29 have staggered radial depressions interlocking with notches in the rubber side-rings 24. The friction-blocks 27 may be of moulded asbestos or steel-backed sintered metal mounted on a heat-insulating asbestos layer. Air, gas or hydraulic fluid may be used for inflation, which is through a shaft-bore and stationary gland.
Patent GB-1451835-A (GB)
Title: Enzymatic hydrolysis of ribonecleic acid
IPC: C07H1/00
Filed: 1974-02-13
Abstract: 1451835 Enzymatic hydrolysis of RNA KYOWA HAKKO KOGYO CO Ltd 13 Feb 1974 [14 Feb 1973 24 March 1973] 6571/74 Heading C2P Nucleoside 2<SP>1</SP>,3<SP>1</SP>-cyclic phosphates and nucleoside 3<SP>1</SP>,5<SP>1</SP>-cyclic phosphates are obtained by enzymatic hydrolysis of ribonucleic acid by reacting it with intact cells of a microorganism having a ribonuclease activity in an aqueous reaction medium in the presence of a chelating agent. The reaction medium may also contain a source of phosphate ion, the amount of phosphate ion influencing the product formed. In the presence of 0 to 0À15 M phosphate ion the 2<SP>1</SP>,3<SP>1</SP>-cyclic phosphate is selectively produced and in the presence of at least 0À17 M phosphate ion the 3<SP>1</SP>,5<SP>1</SP>-cyclic phosphate is selectively produced. The microorganism may be a bacterium of one of the genera Escherichia, Salmonella, Aerobacter or Pseudomonas, such as Escherochia coli, Aerobacter aerogenes, Salmonella typhosa or Pseudomonas aeruginosa or a yeast of one of the genera Hansenula, Kloeckera or Torulopsis, such as Hansenula anomala, Kloeckera apiculata or Torulopsis sphaerica. The chelating agent may be ethylenediaminetetraacetic acid, cyclohexanediaminetetraacetic acid or hydroxyethylenediaminetriacetic acid. The pH of the medium is preferably maintained at 4 to 9, more preferably about 5 for the production of the 2<SP>1</SP>,3<SP>1</SP>-cyclic phosphate and about 8 for the production of the 3<SP>1</SP>,5<SP>1</SP>-cyclic phosphate.
Patent GB-213407-A (GB)
Title: Improvements in and relating to pattern and the like cards
IPC: G09F5/04
Filed: 1923-03-07
Abstract: 213,407. Brown, J. March 7, 1923. Sheets and cards; clamping-devices.-A number of pattern or other cards c are secured together in a cover a by a strap d constructed in one piece or, as shown in Fig. 3, in two parts secured at their ends h to the cover. Recesses f in which the strap engages ensure that the cards are held in register. A bending crease g ensures that each card when turned back shall lie flat.