baber/WOPTO huggingface dataset:
Patent GB-308559-A (GB)
Title: Improvements in or relating to hydraulic couplings or gears
IPC: F16D33/10
Filed: 1928-05-22
Abstract: 308,559. Bauer, G. March 24, 1928, [Convention date]. Hydraulic transmission of power.-A coupling of the F÷ttinger type subdivided into two or more units has separate outlets, the inlets being either separate or in common. The driving sections 3<a>, 3b of all the units 5<a>, 5b are rigidly connected to the driving shaft 2 and the driven sections 4a, 4b to the driven shaft 7. The inlet channels 16, 18 and the outlet channels 22, 24 of all the units may be controlled in common, and the arrangement may be such that the units are brought into action successively. The Specification as open to inspection under Sect. 91 (3) (a) describes also the arrangement shown in Fig. 2 (Cancelled), in which a lever 28 operates inlet valves 30, 31 through a rod 29 and outlet valves 21, 23 through a rod 32. This subject-matter does not appear in the Specification as accepted.
Patent GB-797008-A (GB)
Title: Improvements in or relating to magnetic heads and method of making the same
IPC: G11B5/29
Filed: 1955-05-26
Abstract: 797,008. Making magnetic heads. ARMOUR RESEARCH FOUNDATION OF ILLINOIS INSTITUTE OF TECHNOLOGY. May 26, 1955 [June 3, 1954], No. 15200/55. Class 83 (2). [Also in Group XXXVIII] A method of making a plurality of magnetic recording, reproducing or erasing heads, i.e. either a plurality of single channel heads or a single multi-channel head, comprises securing a pair of magnetic sheets 10, 11 to a non-magnetic member 34 with adjacent ends of the sheets in accurately spaced relation from each other to define a precise non-magnetic gap 35, and dividing this assembly into a plurality of heads 31, each comprising two magnetic strips 32, 33 separated by the gap 35 and secured to the non-magnetic member 34. The gap may be formed by a spacer of e.g. beryllium copper, copper or platinum or these materals may be an electroplated or vacuum evaporated film deposited on ends of the sheets. The sheet edges may be bevelled at 12 and polished. The sheets while subjected to pressure at their outer ends are spot-welded at 25 to the member 34 and may be subjected to subsequent peening at the gap to further reduce the width of the gap. The sheets are divided by cuts 30 into the strips 32, 33 which are in line Fig. 4, or not shown of V-disposition, and are coplaner, Fig. 4, or welded to the sides of a V-shaped member 104, Fig. 15. To the member 34 may be welded at 37 a supporting plate 36 having fixing apertures by which the head is mounted in a shielding housing 54, Fig. 10, provided with adjustable guides 58, 59 which locate one channel of a tape 61 over the head. The heads may be divided either by cuts between the welds or by milling out the sheets to the depth of the member 34. The legs may be bent down, Fig. 12, to extend parallel to each other and the entire head is then annealed. For supporting the tape and isolating adjacent gaps non-magnetic spacers 77 may be welded between the heads, and alternate heads may not be used but have their legs cut off or carry compensating coils 73c or crossed over to compensate cross talk. Specifications 693,347 and 723,386, [both in Group XXXVIII], are referred to.
Patent GB-1500149-A (GB)
Title: Alternating current control circuits
IPC: H02P23/04
Filed: 1975-04-14
Abstract: 1500149 Control of AC motors SONY CORP 14 April 1975 [16 April 1974] 15242/75 Heading H2J A load 14, such as an AC motor, is controlled by a bidirectional, low emitter concentration (LEC), transistor 13 of the type described and claimed in Specifications 1,455,260 and 1,460,037, the impedance of the transistor being varied to vary the amplitude of current from an A.C. source 15 in accordance with a variable current source 12, which controls the base-emitter current of transistor 13 and consists of conventional transistors 18, 21, resistors 17, 19, 20 and a variable voltage source 22. Typical examples of the transistor 13 are described, Figs. 1 and 2 (not shown) and its operation is compared with that of a conventional variable impedance transistor, Fig. 4 (not shown), it being explained how the symmetrical impedance of transistor 13, for the alternate polarities of the source 15, provides a symmetrical sine wave load current in contrast to the asymmetrical current produced by the conventional transistor. Other advantages of transistor 13 are a high uniform gain, an improved overload resistance and a reduction of motor noise compared with the known control using a diode bridge with unidirectional current through a transistor. For higher voltates of source 15, the transistor 13 is replaced by two similar LEC transistors (24, 25) connected in series and having their bases connected to the source 12 through a potentiometer (23) adjustable to balance the transistor base currents, Fig. 5 (not shown).
Patent GB-277433-A (GB)
Title: Improvements connected with hydraulic turbines
IPC: F03B15/18
Filed: 1926-06-18
Abstract: 277,433. English Electric Co., Ltd., and Seewer, P. W. June 18, 1926. Regulating.-A braking device for an hydraulic reaction turbine 1 comprises a free jet or jets 13 of water adapted to be directed against the runner blades 2 so as to oppose, its rotation in the normal direction. Fig. 3 shows an axial braking jet 13 which strikes the conical centre 17 of the runner and is deflected laterally on to the blades. A hand valve 8 controls the supply to the nozzle 10, Fig. 1, which screws into a part 9. A second nozzle 10 interchangeable with the first may be provided, having it internal circular bore slightly offset to the axis 15 so as to alter the jet direction according to the angular setting of the nozzle 10. Before applying the hydraulic brake the part of the draught tube 6 above the nozzle is emptied of water by opening a valve 12 in an air ventilating pipe 11.
Patent GB-667783-A (GB)
Title: Appliance in railway installations, for transmitting signal indications from line signals to a moving train
IPC: B61L3/04
Filed: 1949-06-10
Abstract: 667,783. Track apparatus for train control. KOFLER-AUTOMATIC TRAIN-STOP, Ltd. June 10, 1949. No. 15548/49. Class 105. In train control apparatus in which an inclined longitudinally extending roof-carried contact provided with fixed and movable contact members is actuated by a wayside contact brought into actuating position when the wayside signal is at danger, the roof-carried contact is adjustable relatively to the roof and the transmission members are correspondingly adjustable in length. The roof contact shown in Fig. 4 comprises as the fixed member a rod or pipe bent to provide a slope 21 with depending limbs 10 at each end which are received in support sleeves 12 bolted on the roof 14 and after adjusting the contact for height the limbs are clamped in position by screwing up an internally coned sleeve 18 on to an inner cone piece 16 axially slit to provide gripping fingers. The movable member 26 of the contact is attached by parallel links 24 pivoting on hollow pins 24 filled with lubricant. Rods 29, 31 universally jointed to the movable member 26 and provided with turnbuckles 30 for adjustment serve to apply the brakes and shut off the steam. The fixed member 21 of the roof contact presses the wayside contact out of the loading gauge profile into a latched up position until released by the passage of the last coach whereupon the wayside contact returns into active position in readiness for any following train. When the wayside signal is put at clear the wayside contact is withdrawn from the active position. Fig. 6 shows the fixed member of the roof contact as a stream-lined casing 40 carrying the movable member 26 and having a cylindrical lower portion 42 adjustably supported within the roof aperture 47 by brackets 43.
Patent GB-1040051-A (GB)
Title: Amine-formaldehyde-ketone resins
Inventor: ADOLPH COLIN WILLIAM
IPC: C08G12/00
Filed: 1963-04-19
Abstract: An etherified resin is prepared by condensing formaldehyde with a cycloaliphatic ketone in an aqueous alkaline medium, adding an aminoplast-forming "amine" and an alkanol and continuing the condensation under acidic conditions to yield a solution of the resin in the alkanol.  The preferred "amines" are melamine, urea and benzoguanamine, providing at least 0.6, preferably 2.5 to 20, amino groups per keto group.  The preferred ketones are cyclohexanone and alkylhexanones.  The preferred alkanols contain 2-6 C atoms.  The product resin solution may be used in conjunction with thermosetting resins, e.g. alkyd, epoxy, or thermosetting acrylic resins to provide bases for stoving enamels. In examples, butyl ethers of cyclohexanone - formaldehyde - melamine condensates are prepared and combined with an alkyd resin, and optionally TiO2 and xylene, to give stoving enamels.
Patent GB-561275-A (GB)
Title: Improvements in or relating to landing gear for aircraft
IPC: B64C25/60
Filed: 1942-11-05
Abstract: 561,275. Landing-gear for aircraft.. ARMANDIAS, L. S., and ASSOCIATED MESSIER INVESTMENTS, Ltd. Nov. 5, 1942, No. 15639. [Class 4] In landing gear, comprising front and rear landing-elements, such as wheel's 1a, 1b shown in Fig. 1, and yielding connections between each wheel and 'the aircraft, each yielding connection comprises a resilient support 4a responding adequately to taxying shocks and a hydraulic landing shock-absorber 19a in series with the resilient support. 4a, there being a connection such as the pipe 24 between the hydraulic shock-absorber 19a of the front wheel 1a and the hydraulic shock-absorber 19b of the rear wheel 1b to balance the front and rear landing loads and there also being a hydropneumatic accumulator 25 connected through damping orifices to the pipe 24 so as to provide resistance to contraction for both sets of shockabsorbers. Locking devices 40a, 41a are provided to immobilise the landing shock-absorbers in the contracted position attained during landing. Besides the quadricycle landing gear shown in Fig. 1, two examples of tricycle gears are described. Specification 519,275 is referred to.
Patent GB-476238-A (GB)
Title: Improvements relating to the manufacture of red lead
IPC: C01G21/10
Filed: 1936-06-04
Abstract: Red lead is produced from lower lead oxides, carbonate of lead, or white lead by passing the initial material through a rotary furnace in countercurrent to the heating gases.  Longitudinal ribs may be provided in the furnace to effect agitation of the p  material, and the heating gases may be brought into direct contact with the material, or be passed through separate closed flues within the furnace.  In the latter case, the flues may comprise longitudinal channels in the furnace lining or a pipe running longitudinally through the centre of the furnace.  A slowly rotating furnace of considerable length, say 60 feet, is preferably used.  Air openings are provided at its lower end, but feeding and discharge are effected through housings connected in an air-tight manner with the furnace. The furnace draught serves to convey any dust or fumes to a dust collector.
Patent GB-544852-A (GB)
Title: An improved nut locking device
IPC: F16B39/04
Filed: 1940-10-29
Abstract: 544,852. Locking nuts. ILBERY, J. E. Oct. 29, 1940, No. 15821. [Class 89 (i)] The ends of bolts are drilled axially at 11, the holes preferably being countersunk. Holes, odd in number, are drilled radially through the annular wall to co-operate with slots or castellations in the nut. The number of slots is one more than the number of holes to give a vernier effect. Split pins 12 are used to give the lock, the legs being unequal to facilitate opening. Radial notches 15 above the holes enable a registering pair to be found when the bolt is not visible.
Patent GB-1459386-A (GB)
Title: Radiant energy tracking systems
IPC: G01S3/786
Filed: 1965-04-13
Abstract: 1459386 Infra-red tracking PHILCO-FORD CORP 13 April 1965 15863/65 Heading H4D The infra-red radiation from the target is focused to form an image on the photo-electric cathode 14 of an image converter 15, from which an electron beam emanates. The beam is focused and nutated by a magnetic field produced by programmed deflection coils 17, 18 so that a further image traces a circular path on the fluorescent output screen 16. The optical image so formed is focused on to a quadrature type radiant energy sensitive device 25 which is divided into separate zones, the relative durations of the signals from which indicate the angular position of the target about the optical axis. The target radiation is modulated and both yaw and pitch information is provided.
Patent GB-258641-A (GB)
Title: Improvements in or relating to the manufacture of organic compounds of bismuth for therapeutic purposes
IPC: C07F9/94
Filed: 1925-06-19
Abstract: 258,641. Stickings, R. W. E., and May & Baker, Ltd. June 19, 1925. Medicines for internal use. - Double salts of aliphatic hydroxy polybasic acids with bismuth and an organic base are prepared by bringing one molecular proportion of the acid into contact with an aqueous solution of a bismuth compound containing one atomic proportion of bismuth and sufficient organic base to produce a soluble product, which may then be precipitated by addition of a non-solvent such as alcohol. Tartaric, citric, and malic acids are specified as examples of aliphatic hydroxy polybasic acids; whilst the bases employed are an aliphatic amine such as diethylamine, an alkylaminoalcohol such 'as diethylaminoethanol, hexamethylenetetramine, or piperazine. The double salts may be made up into solutions, if desired with the addition of a reducing sugar such as glucose, for immediate therapeutic use. Examples of the preparations of solutions are given according to which glucose is added to a neutral aqueous solution of dietaylamine bismuthyl tartrate and the product is then filtered and sterilized.
Patent GB-1524591-A (GB)
Title: Method for the application of material to the ends of long objects
IPC: B05D/
Filed: 1976-04-20
Abstract: 1524591 Coating ends of long objects TUDOR AB 20 April 1976 [24 April 1975] 15970/76 Heading B2L The end only of a long object is passed at two different places into a body of liquid or powder placed on a constantly moving surface, the direction of movement of said end with respect to the direction of movement of the body of material being different at the two places, and the two said directions being at an acute angle to each other where the object passes into the body of material. Electrode sheaths 1 for accumulators pass along path 2; each sheath contacts an annular body of powder 8 carried on a disc rotating about axle 4, first at 1b then again at 1c. As the disc rotates, disturbances 9a, b, c in the powder body are removed by adding more powder at 6 and scraping smooth at 7.
Patent GB-389065-A (GB)
Title: Improvements in vibration damping devices
IPC: F16F15/129
Filed: 1931-06-01
Abstract: 389,065. Torsional-oscillation dampers. REICHSVERBAND DER AUTOMOBILINDUSTRIE E. V., 8, Hardenbergstrasse, Charlottenburg, Berlin. June 1, 1931, No. 16000. Convention date, June 5, 1930. Void [Published under Sect. 91 of the Acts]. [Class 108 (iii).] In means for damping torsional oscillations of shafts, a rotating weight is elastically connected to the shaft by a material such as rubber capable of exerting a damping action due to its internal friction, while a friction brake also acts on the weight. In the construction shown in Fig. 2, a ring-shaped weight c is connected to the shaft f by a rubber disc b which allows a small amount of relative rotation between the shaft and the weight. Such movements are also damped by friction plates d forced against the weight by springs e, which are, however, rigid as regards rotation of the shaft and therefore serve to drive the plates. In a modification, shown in Fig. 3, the springs are dispensed with and the rubber disc b is utilized to obtain the necessary pressure between the friction member d and the weight c. The rubber disc b which was originally flat, is strained by connecting it to the cross-bar e bolted to the ring d.
Patent GB-558405-A (GB)
Title: Improved method of making spark plugs
IPC: H01T21/02
Filed: 1942-11-13
Abstract: 558,405. Sparking plugs. GENERAL MOTORS CORPORATION. Nov. 13, 1942, No. 16053. Convention date, Feb. 9. [Class 7 (iv)] In a method of making a sparking plug a hollow electrode 6 containing a bonding material 12 and a heat conducting core 10 is placed with sealing material and a terminal 18 in an insulator 2 and the loose assembly is heated to soften the bonding and sealing materials. The sealing material 14 comprises a pellet of borosilicate glass and finely divided conducting material which is crushed in situ. A pellet 16 of lead borosilicate glass and finely divided conducting material is forced when melted by pressure on the terminal into recesses 4 in the insulator and around the screwthread 4 of the terminal.
Patent GB-778628-A (GB)
Title: Improvements in or relating to display stands for garments or the like
IPC: A47F7/24
Filed: 1954-05-31
Abstract: 778,628. Garment stands. WEINSTEIN, L., WEINSTEIN, D:, and CARLTON FURNITURE CO., Ltd. May 31, 1955 [May 31, 1954], No. 16078/54. Class 52 (5). A garment stand comprises a central supporting post 1 with a horizontal cross bar 6 at the ends of which are pivotally mounted arms 7 on which garments may be hung. Each arm 7 may be unitary or may comprise a pair of arms angularly adjustable relative to each other. Each arm 7 is secured by a knurl headed screw 8 in a slot in a spigot member 10 fitting into the hollow end of the crossbar 6, a thumbscrew 11 being provided to clamp the arm in an adjusted position. Notches 7a are provided in the normally uppermost edge of the bar while stops 7b are provided at the lower ends so that alternatively the bar may be rotated through 180 degrees to accommodate more garments. The arms may be fixed to the crossbar in which case the crossbar is rotatably fitted in a sleeve at the end of the post 1. An alternative support is shown in Fig. 3. More than one crossbar may be vertically adjustable on a common post.
Patent GB-314656-A (GB)
Title: Improvements in or relating to fault indicators for overhead transmission lines
IPC: H02H1/00
Filed: 1928-06-01
Abstract: 314,656. Cluley, G., and Associated Electrical Indurtries, Ltd. June 1, 1928. Indicating and locating faults. - A fault. indicator for overhead transmission lines comprises a coil 10 carried in a housing 8 on a line insulator 1, the coil being connected in series with the line 6, 7 by leads 13, 14, and energized by fault currents to operate a gravity drop indicator 22. The indicator is latched manually behind one arm of a bell-crank lever 20 which is tripped by the iron core 11 of the coil 10.
Patent GB-272941-A (GB)
Title: Improvements in dyeing textile goods
IPC: D06P1/651
Filed: 1927-06-16
Abstract: 272,941. I. G. Farbenindustrie Akt.- Ges. June 18, 1926, [Convention date]. Addition to 270,307. Circulating or passing fluids through materials. -In dyeing with vat dyestuffs in a hydrosulphite vat, by the process described in the parent Specification, an aldehyde or ketone is added to the dye-bath, and the. dyeing is effected at or near the boiling point. In examples, bead-yarn is dyed (1) in a vat prepared by reducing a dyestuff obtained by the process described in Specification 7931/09, [Class 2 (iii), Dyes &c.], with hydrosulphite and caustic soda lye, and adding formaldehyde, and (2) in a vat prepared by reducing the dyestuff obtained by the process described In Specification 8295/11, (Class 2 (iii), Dyes &c.], with hydrosulphite and caustic soda solution and adding monopol soap and acetone.
Patent GB-197845-A (GB)
Title: An improved method of and apparatus for burning sulphur
IPC: C01B17/54
Filed: 1922-06-09
Abstract: 197,845. Prentice, A. T. June 9, 1922. Sulphur burners. -In a sulphur-burning furnace the primary combustion chamber 3, is surrounded by a flue 4 in which the combustion of the sulphurous gases is completed, and this in turn is surrounded by flues 7, 9 for heating the primary and secondary air supplies. The primary combustion chamber is fitted with superposed hearths 2, and the air supply is delivered thereto through the ports 11. The sulphurous gases and the secondary air pass into the flue 4 through the ports 12, 13 respectively. Valves are provided for regulating the primary and secondary supplies of air.
Patent GB-835603-A (GB)
Title: Improvements in or relating to oxytetracycline salt containing compositions
IPC: A61K31/65
Filed: 1957-05-21
Abstract: A stable solution of an oxytetracycline salt is prepared by dissolving the salt in one or a mixture of more than one lactic acid esters of 1 to 4 carbon aliphatic alcohols especially methyl and/or ethyl lactate.  Specified oxytetracycline salts are the hydrochloride, tartrate, benzoate and salicylate.  The solutions may be formulated into preparations for therapeutic use (see Group VI).ALSO:Therapeutic preparations for oral, parenteral or topical (paints and sprays) administration comprises a solution of an oxytetracycline salt in one or a mixture of more than one lactic acid esters of 1 to 4 carbon aliphatic alcohols, especially methyl and/or ethyl lactates.  Specified oxytetracycline salts are the hydrochloride, tartrate, benzoate and salicylate.  For internal use, ethyl lactate is the preferred solvent.
Patent GB-145065-A (GB)
Title: Improvements in steel propellers
IPC: B21D53/78
Filed: 1920-06-16
Abstract: 145,065. Ruppel Metallwarenfabrik, Geb. Oct. 1, 1918, [Convention date]. Screw propellers.-The blades of screw propellers are formed of a number of overlapping steel plates of different lengths and with forked ends so that the thickness diminishes from root to tip. The blade is secured in a cylindrical socket as shown in Fig. 1.
Patent GB-947758-A (GB)
Title: Ac-dc converter
IPC: H02M1/08
Filed: 1962-04-30
Abstract: 947,758. Rectifying. WESTINGHOUSE ELECTRIC CORPORATION. April 30,1962 [May 19, 1961], No. 16316/62. Heading H2F. A rectifying circuit comprising a series circuit of an A.C. source 16, a load 20 and a semi-conductor controlled rectifier element 18 of the kind that is triggered into conduction by a pulse on its control electrode and remains conductive until the anode voltage goes negative, includes a control circuit which provides pulses at the frequency of the A.C. supply and which comprises a transformer 10 whose secondary winding 14 is in series with a saturable reactor 26 and a diode 22 to provide pulses across a resistor 40, these pulses being applied to the control electrode 44 through a capacitor 34 and resistor 36 to initiate conduction, the control circuit including a diode 42 so that the capacitor-which becomes charged during the application of the pulse-may discharge during the non-conductive half-cycle to maintain a negative voltage across the gate-cathode path. The diode 42 may be a Zener diode to limit the pulse voltage, and the saturable reactor may be a magnetic amplifier having biasing and control windings 46, 48.