baber/WOPTO huggingface dataset:
Patent GB-988277-A (GB)
Title: Improvements in or relating to magnetic tape recording and playback machines
IPC: G11B15/28
Filed: 1963-01-01
Abstract: 988,277. Feeding record tapes. AMPEX CORPORATION. Jan. 1, 1963 [Feb. 5, 1962], No. 142/63. Heading G5R. A magnetic tape is fed by a resilient sounddrum type of arrangement, characterised by a rubber capstan tread 57 chosen to yield, rather than the spring-engaged heads 21-24,when an abrupt variation in tape-thickness occurs. The long tape-lap also reduces flutter due to longitudinal elastic tape vibrations. The tape-regions 27 are pre-tensioned by spool-driving means (not detailed). The (multi-track) heads trail from interchangeable mounting blocks 74 on blades 73 and are urged against the tape by adjustable pressure means 92. A ring of pins 66 is urged by a solenoid (Fig. 2, not shown) out of engagement with the heads, so that a return means (not detailed) provides a fail-safe head-lifter for threading or for when the apparatus is out of use. The head-blocks are identical wedges radially located on a ring (Fig. 3 not shown) and held in circumferential engagement before clamping by means 83. The ring is concentric with a flange (Fig. 2 not shown) concentric with a bearing assembly for the capstan which has a demountable structure.
Patent GB-436115-A (GB)
Title: Improved jacking system for vehicles
IPC: B60S9/04
Filed: 1935-01-02
Abstract: 436,115. Gearing for converting continuous rotary into intermittent rotary motion. CAPELLO, A., 138, Calle Mariano Acosta, E. Echeverria, Buenos Aires, Argentine. Jan. 2, 1935, No. 145. Convention date, Jan. 3, 1934. [Class 80 (i)] [See also Group XXXI] The lower portions 10 of telescopic jacks A, positioned on a vehicle adjacent the wheels, are drawn out of the upper portions 6 against springs 12 by means of cables 2 passing over pulleys and connected to a common screw member 4 which is rotated in the appropriate direction by a nut 24 driven by the engine shaft 19 through pawl mechanism under the control of the driver. The engine shaft carries a cam 21 which contacts with one of the limbs of a bifurcated member 27 when the latter is swung against a restoring spring 37 about the axis of the nut by the operator through manually actuated cables 34 from a control lever adjacent the driver's seat. The operation of the cables 34 simultaneously rocks a lever 33 to render the appropriate set of oppositely directed pawls 25, 251 operative. The pawls are resiliently held by springs 29 in the space betwen the periphery of the nut 24 and the face of a circular aperture in the bifurcated member wherein the nut is housed. The appropriate pawls are moved into operative position-wherein their outer arcuate portions are operatively engaged by the face of the aperture in the bifurcated member and their pointed ends engage ratchet teeth on the periphery of the nut 24-by pins 30 projecting from a rotatably mounted annular member 31 which is moved in the appropriate direction by the rocking lever 33 connected thereto at 32. By the time that the telescopic portions 10 have been fully withdrawn from or returned into the upper tubes 6, one of a pair of lugs 41 on the screw 4 has contacted with a lug 42 on the bifurcated member 27 to swing the latter to the neutral position wherein the cam 21 rotates without contacting therewith so as to stop the drive to the screw 4.
Patent GB-268444-A (GB)
Title: Improvements in revolving doors
IPC: E06B3/90
Filed: 1926-01-04
Abstract: 268,444. Colman, T. B. Jan. 4, 1926. Revolving doors. - The radial wings are separated by struts, each hinged at one end to a plate and the other end is hinged to a member adapted to slide in a guideway e on an adjacent wing, locking means such as a spring-pressed bolt being provided to retain the struts in position so that the wings may rotate together. When the locking means are released and the wings collapsed, the slippers f of the struts d move towards the axis of the door and the slippers i of the arms g move outwardly away from the door axis. The slippers i are engaged by the spring- pressed pin j, which is adapted to be depressed by a pin o on the pivoted handle n when it is desired to collapse the door members. By turning the head q through 90‹ it is held in the non- locking position against the action of the spring l.
Patent GB-1382438-A (GB)
Title: Adamantane and substituted adamantane carboxylic acid esters of chloramphenicol
IPC: C07C53/44
Filed: 1972-01-03
Abstract: 1382438 Chloramphenicol esters E R SQUIBB & SONS Inc 3 Jan 1972 [6 Jan 1971] 179/72 Heading C2C Novel chloramphenicol esters of the general formula  wherein X is a single bond or an optionally C 1-8  alkyl-substituted C 1-6 n-alkylene or alkenylene group and is attached at the 1- or 2-position of the adamantane ring, R is a halogen atom or a C 1-8  alkyl, C 1-8  alkoxy or phenyl group and n is 0, 1 or 2, are prepared by reacting chloramphenicol with an acid halide of the general formula  wherein Hal is a fluorine, chlorine, bromine or iodine atom, in the presence of a basic catalyst. Acid halides of the second general formula above are prepared by treating the corresponding acid with a thionyl or oxalyl halide. 1- Adamantaneacrylic acid is prepared by reduction of 1-adamantane-carboxylic acid with lithium aluminium hydride, oxidation of the resulting 1-adamantane methanol using Jones Reagent, treatment of the resulting 1-adamantaldehyde with triethylphosphonoacetate in the presence of sodium hydride and 1,2-dimethoxyethane and alkaline hydrolysis of the resulting 1-adamantaneacrylic acid ethyl ester. #<SP>2</SP>,α- Adamantaneacetic acid is prepared by treatment of 1-hydroxyadamantane with concentrated sulphuric acid, treatment of the resulting adamantanone with triethylphosphonoacetate in the presence of sodium hydride and 1,2- dimethoxyethane and alkaline hydrolysis of the resulting #<SP>2</SP>,α-adamantaneacetic acid ethyl ester. 2-Adamantane-acetic acid is prepared by treatment of adamantanone with diethylcyanomethylphosphate in the presence of sodium hydride and 1,2-dimethoxyethane, catalytic hydrogenation of the resulting #<SP>2</SP>,α-adamantaneacetonitrile and alkaline hydrolysis of the resulting 2-adamantaneacetonitrile. Pharmaceutical and disinfectant compositions having antimicrobial activity comprise, as active ingredient, a chloramphenicol ester of the first general formula above, together with a suitable carrier.
Patent GB-554021-A (GB)
Title: Improvements in strips for draught excluding and like sealing purposes
IPC: E06B7/22
Filed: 1942-01-06
Abstract: 554,021. Draught excluders. FLORES, S. L. Jan. 6, 1942, No. 190. [Class 20 (iii)] A strip for draught exclusion has a resilient body portion 1 consisting of asbestos yarn 2 enclosed in a tubular pocket 3 formed by folding over and securing to itself a strip of flexible fabric which forms a web 4 by which the device is secured to a door or structure. The fabric is coated with an adhesive, folded over the asbestos yarn, and the portions 4 united together to form a web of double thickness.
Patent GB-344124-A (GB)
Title: Improvements in grinding mills
IPC: B02C15/12
Filed: 1930-01-02
Abstract: 344,124. Ball-andring grinding or crushing mills. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London. - (Babcock & Wilcox Co.: 85, Liberty Street, New York, U. S. A.) Jan. 2, 1930, No. 200. Addition to 334,058, [Class 59, Grinding, crushing, &c.]. [Class 59.] In the mill described in the parent Specification air is passed upwards at high velocity inside the lower row of balls 23 and at a lower velocity through a space near the outside of the upper row of balls 24, and during its passage the air passes through a driving ring 20 and across the stream of material passing from the upper to the lower row of balls. The vertical shaft 4 is driven by a motor through reduction gearing 6 and carries a flanged driving plate 8 which is recessed to receive lugs of the perforated driving ring 20 the centre of which is enclosed by a disc 21. The ring 20 drives grinding balls 23. 24 running on fixed tracks 7, 25 respectively, the track 25 being weighted by a ring 26 which is also in contact with the spring-pressed plungers 29. An air chamber 14 surrounds the grinding mechanism and by means of a conical partition 15 the air is directed through a passage 17 to the inside of the lower ring of balls 23. An L-shaped ring 27 depends from the ring 26 and encloses the outside of the upper ring of balls except for a narrow passage 27<1> through which the material ground by the upper ring of balls passes to the outside of the lower ring. The air from the passage 17 passes through the perforations 22 in the driving ring 20 to the outside of the ring 27 and thence to the sifting cone 41 to the outlet 40. The material is fed in through a spout 39 and falls on to the plate 21 from which it is thrown to the first ring of balls 24, where it is ground and discharged through the passage 27<1> into the ascending air current, the fines being carried away in suspension in the air whilst the heavier particles fall to the outside of the ring of balls 23 and are ground thereby, the fines being carried away by the air current in the passage 17. The spring plunger 29 is housed in a casing 31 which is movable longitudinally by a hand-wheel 32, the compression of the springs 30 being adjusted by a nut 38.
Patent GB-1112226-A (GB)
Title: An arrangement for low frequency processing of high frequency voltages
IPC: H03K17/60
Filed: 1967-01-03
Abstract: 1,112,226. Colour television. HAZELTINEAGA LABORATORIUM G.m.b.H. 3 Jan., 1967 [11 Jan., 1966 (2)], No. 216/67. Heading H4F. The Specification describes a system for the synchronous demodulation of the chrominance signals in a PAL type receiver and also some preliminary circuitry. Such preliminary circuitry provides for the production of a reference demodulating carrier, having its phase switched through 180 degrees on alternate lines. A prior art method of doing this is shown in Fig. 1 wherein the carrier Ue is applied to the input winding of a transformer T1, having two secondaries W1 and W2 connected in parallel antiphase to an output transformer T2, via switching diodes D1 and D2. Each diode is opened on alternate lines by pulses from a bi-stable multivibrator comprising active elements R÷1, R÷2 and passive elements M1. The basic invention is to incorporate the diode D1 and D2 into the multivibrator active elements. One method is shown in Fig 2a in which the active elements become pentodes with the control and screen grids performing the respective functions of the control grids and anodes of the triodes and the suppressor grids and anodes performing the functions of the diodes, the carrier Ue being applied in antiphase to the suppressor grids via centre earthed transformer T3. The centre tapped transformer is transferred to the output of the pentodes in the circuit of Fig. 2b (not shown) and the suppressors may be earthed, with the carrier applied between the centre tap of the output transformer and earth in Fig. 2c (not shown). The triodes of Fig. 1 may be made to carry the carrier frequency in reflex amplifier fashion, and Figs. 3a-3d (not shown) show various methods of connecting input windings W3/W4 and output windings W5/W6, using the transformer connections of Fig. 4a or 4b (not shown) to obtain the phase inversion. A transistorized version of the circuit of Fig. 3a is shown in Fig. 5 (not shown). The synchronous demodulator shown in Fig. 6 uses the circuit of Fig. 2a, the chrominance signal Uc being applied via capacitor C13 to the mixer/detector sections of the pentodes R÷5 and R÷6 and the detected chrominance signal Dc being taken off via carrier eliminating low pass filter R14/C14.
Patent GB-416546-A (GB)
Title: Improvements relating to regulating devices for immersed electrode-type electric water heaters
IPC: F24H1/10
Filed: 1934-01-04
Abstract: 416,546. Automatic regulation. SHEVLIN, J. T., 15, South Street, Finsbury, London. -(Siemens - Schuckertwerke Akt. - Ges. ; Siemensstadt, Berlin.) Jan. 4, 1934, No. 346. [Class 38 (iv).] A reversible motor 6 controlling the consumption of current in an electrode boiler by adjusting the position of tubes 5 covering the electrodes is under the control of a single armature 24 and three magnet coils 23, 25, 26. The first of these coils is energized by a circuit contairing a time switch 11, thermostats 12, 13 and a contact 17 closed when the main switch 14 closes. This magnet 23 holds the armature 24 in a median position against the bias of a weight 29. Relays 27, 28 responsive to normal and excess current in the boiler circuit control respectively the magnets 25, 26 to cause the armature 24 to tilt mercury reversing switches 30 appropriately to cause the motor 6 to increase or decrease the boiler loading. When the time or other switch opens the circuit of the coil 23 the weight 29 causes the motor 6 to be driven to minimum load setting of the boiler, upon reaching which switches 20, 21, 31 are operated. The first de-energizes the no-volt coil 15 to allow the main switch to open and then remakes the no-volt coil circuit, the second de-energizes the magnet 26 and prepares a circuit for the motor 19 actuating the main switch, and the third stops the motor 6 in the minimum load position. The contacts of the switch 20 are bridged by the contact 33 when the time switch recloses and has effected the closure of the main switch by energizing the motor 19.
Patent GB-852647-A (GB)
Title: Steroid compounds and preparation thereof
IPC: C12P33/00
Filed: 1958-01-06
Abstract: The invention comprises a compound having the formula: <FORM:0852647/IV(b)/1> wherein X is a fluorine, chlorine or bromine atom and R is b -hydroxyl or keto, or a 21-ester thereof with a mono- or di-carboxylic acid, said mono- or di-carboxylic acids containing only carbon, hydrogen and oxygen up to a total of ten carbon atoms or an alkali or alkaline earth metal salt of said dicarboxylic acid esters, and a process for the preparation of a compound having the formula I which comprises contacting a compound having the formula: <FORM:0852647/IV(b)/2> wherein R and X are as defined above and R1 is hydrogen or an acyl hydrocarbon containing up to 10 carbon atoms, to the oxidising enzymes of a micro-organism known in the literature to introduce a double bond in the 1-position of steroids.  As micro-organisms there may be employed species of the genus Mycobacterium, e.g.  Mycobacterium species 607, M. berolinese, M. lacticola, M. thamnopheos, M. smegmatis and M. phlei, or of the genus Protaminobacter.  Illustrative products of the invention are D 1,4-pregnadiene-9a -fluoro-11b ,14a ,17a ,21-tetrol-3, 20-dione, D 1,4-pregnadiene-9a -fluoro-14a ,17a ,21-triol-3,11, 20-trione, D 1,4-pregnadiene-9a -fluoro-11b ,14a ,17a ,21-tetrol - 3,20 - dione21 - acetate,D 1,4 - pregnadiene-9a -fluoro-14a ,17a ,21 - triol - 3,11,20-trione 21-acetate and D 1,4-9a -fluoro-11b ,14a ,17a ,21-tetrol-3,20-dione 21-propionate.  Specification 800,644 is referred to.ALSO:A pharmaceutical composition comprises a compound having the formula:  <FORM:0852647/VI/1> wherein X is a fluorine, chlorine or bromine atom and R is b -hydroxyl or keto or a 21-ester thereof with a mono- or di-carboxylic acid containing only carbon hydrogen and oxygen up to a total of 10 carbon atoms or an alkali or alkaline earth metal salt of said dicarboxylic acid esters, together with a pharmaceutically acceptable carrier.  Such compositions for oral administration are in the forms of tablets, suspensions and elixirs; for topical application in the forms of ointments and salves, and for intra-articular injection aqueous suspensions may be employed.  Specification 800,644 is referred to.
Patent GB-275075-A (GB)
Title: Improvements in and relating to ironing machines
IPC: D06F65/02
Filed: 1926-07-06
Abstract: 275,075. White, A. E., (Potter, Inc., L.). July 6, 1926. Drawings to Specification. Ironing-machines.-The machine is the same as that described in Specification 275,007, but the claims relate chiefly to the placing within the periphery of the roller of the bearings and drive for the roller, and to the means for returning the work to the front of the machine.
Patent GB-468449-A (GB)
Title: Improvements in or relating to the manufacture of double or multiple helical tungsten incandescent bodies
IPC: H01K3/02
Filed: 1936-01-06
Abstract: In a process for manufacturing double or multiple helical tungsten incandescent bodies for use in gas-filled vessels containing nitrogen, particularly gas-filled electric incandescent lamps, by subjecting to at least one heating a tungsten wire wound on at least two cores made of metal of high wetting point, and subsequently removing the cores, the incandescent body, before being mounted in the vessel which receives the gas filling, is heated to such a temperature between 1450 DEG  C. and the re-crystallization temperature of tungsten, and for such a time that, not only are the internal stresses eliminated but, under continued heating or re-heating, the content in the incandescent body of material taken up from the core, is less than 0,4 per cent, and preferably less than 0,2 per cent, of the weight of the incandescent body.  The heat treatment to which the incandescent body, with the core, is subjected may be such that it takes up less than 0,4 per cent of core material, or it may take up material in excess of 0,4 per cent of its weight, whereupon, after the removal of the core, the body is heated to a white heat in a space free from nitrogen, for instance in a vacuum or in a hydrogen atmosphere to reduce its content of core material to less than 0,4 per cent.  In an example, a tungsten wire which assumes a macro-crystalline structure during heat treatment is wound upon primary and secondary cores of molybdenum and drawn for a few seconds through a hydrogen atmosphere in a furnace at a temperature of 1500 DEG  C.  The secondary helix is then cut into pieces of the required length which are incandesced for one minute at a temperature of 1600 DEG  C. in a tungsten tube furnace through which a mixture of 25 per cent hydrogen and 75 per cent nitrogen is passed.  The cores are then dissolved out.  In another example using a heavier wire which is wound upon primary and secondary cores of molybdenum, the coiled coil is passed for a few seconds through hydrogen in a furnace at 1500 DEG C., cut into lengths, and then incandesced for three minutes at 1700 DEG  C. in a tungsten tube furnace through which hydrogen is passed.
Patent GB-727142-A (GB)
Title: Improvements in and relating to the pressure butt-welding of metal articles
IPC: B23K11/04
Filed: 1952-01-07
Abstract: 727,142. Transformer systems; welding supply systems. DEUTSCHE EDELSTAHLWERKE AKT.-GES., and WUPPERMANN GES., T. Jan. 7, 1952 [Jan. 11, 1951], No. 467/52. Class 38 (4). [Also in Group XXII] In pressure butt welding metal articles, the articles are preheated by an inductor fed by higher frequency current and are then welded when current of lower frequency is passed directly through them, the currents of both frequencies being supplied by a single common transformer. In an embodiment, two articles, e.g. rods, tubes or rails, are preheated by an inductor 26. The inductor and clamps 10, 10<SP>1</SP> connected in parallel are supplied from a transformer secondary 25. Current at 2000 cycles/ sec. single phase is supplied, from one of two generators rigidly connected together and driven by a common motor, to the primary 23 for preheating and current at 50 cycles/sec. three phase is supplied from the other generator to the primary for welding, a change-over switch 20<SP>1</SP> is first moved to the right to energize a relay 22 from a 220 volt source to close its switch contacts and supply the higher frequency current to the primary when preheating is complete the inductor is hinged out from between the articles, the switch 20<SP>1</SP> is moved to the left to energize relay 27 and close its contacts so that low-frequency current is fed to the primary, the articles then being brought together for welding. The high and low frequencies may be 100-20,000 cycles/sec. and 5-50 cycles/sec.
Patent GB-862279-A (GB)
Title: An improved trimming device for finger nails
Inventor: WEBBER ALFRED DISRAELI
IPC: A45D29/05
Filed: 1959-01-06
Abstract: 862,279. Manicuring appliances. PIFCO Ltd. Dec. 10, 1959 [Jan. 6, 1959], No. 476/59. Class 81 (2). A trimming device for finger-nails comprises a handpiece a, preferably of plastics material and of tapered form, housing an electric motor b with its spindle c projecting from one end of the handpiece a to receive a grinding wheel d or disc e, the electric lead f to the motor extending from the other end. The motor may be powered by batteries j, k housed in a box h separated from the trimming device by a partition a on which a switch n is mounted. The batteries may be replaced by a transformer (not shown) to enable the device to be operated from the mains. A brass cuticle cutter s and a rubber cuticle tip t may be mounted on the spindle c.
Patent GB-292432-A (GB)
Title: Improvements in railway or like wagons
IPC: B61D7/06
Filed: 1928-01-06
Abstract: 292,432. Bailey, A. S., and Leeds Forge Co., Ltd. Jan. 6, 1928. Hopper wagons.-In railway and like hopper wagons of the kind in which the material is discharged through doors disposed longitudinally in the wagon bottom, the discharge openings or deflecting plates or shoots associated therewith are so arranged in each wagon or in a train of wagons that the material, when discharged while the wagon or train is in motion, forms a continuous pile having a transverse width greater than the width of the pile which would be obtained with the wagons stationary. Preferably, the discharge openings or deflecting attachments fitted thereto are disposed asymmetrically with respect to the longitudinal vertical centre plane of the wagon. In the arrangement shown in Fig. 2 each wagon has two discharge openings 1, 2, the doors of which are preferably operated by a common operating mechanism, displaced towards opposite sides of the central longitudinal axis. Where only one opening is provided, this may be similarly displaced alternate wagons in the train having the doors displaced in opposite directions. In another construction, Fig. 6, the discharge opening 1 is inclined slightly to the longitudinal axis. In further modifications, the discharge opening may be fitted with a deflecting plate 6 of varying inclination at different points as shown in Fig. 8, or having an inclined edge. Similarly deflecting plates may additionally be fitted to discharge openings in the sides of the wagon, where such are provided. Specification 5008/10 is referred to.
Patent GB-837925-A (GB)
Title: Dispensing closure
IPC: B65D47/08
Filed: 1958-01-07
Abstract: 837,925. Container closures. MORTON SALT CO. Jan. 7, 1958 [Jan. 28, 1957], No. 622/58. Class 125(3). A dispensing closure for a container for salt has a moulded plastic body member 10 with a groove 13a to receive the edge 12a of the container wall around the orifice therein, an inwardly directed bead 17 and a foraminous wall 19 across the inner end of the member, a lid 14 having a rib 16 to engage under bead 17 being hinged to the member 10 by hinges 15.