baber/WOPTO huggingface dataset:
Patent GB-291340-A (GB)
Abstract: 291,340. I. G. Farbenindustrie Akt.- Ges. May 28, 1927, [Convention date]. 7-Acylamino-1 : 4-naphthoquinones which are valuable intermediates for dyestuff manufacture are prepared by oxidation of a 7-acylamino-1- hydroxynaphthalene or a. substitution product thereof. In examples, 7-acetamino-1: 4-naphthoquinone is obtained from 7-acetamino-1-naphthol and 7-benzoylamino-1 : 4-naphthoquinone from 7- benzoylamino-1-naphthol; in these examples the oxidation is effected by means of chromic anhydride in acetic acid solution. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the preparation of 7 - N - p - toluenesulphonylaminc - 1 : 1 - naphthaquinone from 7-N-p-toluenesulphonylamino-1- hydroxynaphthalene and the sodium salt of 7- benzoylamino - 1 : 4 - naphthaquinone-3-sulphonic acid from the sodium salt cf 7-benzoylamino-1- hydroxynaphthalene - 3 - sulphonic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-246626-A (GB)
Title: Improvements in or relating to concrete or like building blocks or slabs
IPC: E04B2/30
Filed: 1924-12-05
Abstract: 246,626. Jones, D., and Creak, G. Dec. 5, 1924. Blocks, special shapes of.-Relates to slabs for building walls, of the type in which two parallel blocks are spaced apart by metal connecting-ties having bent ends. According to the invention the ties have a main portion extending from slab to slab and entering each slab, and the bent ends lie wholly embedded in the slabs, some being parallel to the longitudinal axis of the block and some at right-angles thereto. In the preferred arrangement, two ties c, d are arranged practically flush with the ends of the block and at different levels, while a third tie e is arranged centrally of the long side of the block. In some cases, ties may also be used on the fourth side of the block.
Patent GB-533398-A (GB)
Title: Improvements in or relating to tripping arrangements for operating mechanism of electric circuit breakers
IPC: H01H3/32
Filed: 1939-11-02
Abstract: 533,398. Automatic circuit-breakers. GENERAL ELECTRIC CO., Ltd., and KEELEY, F. J. Nov. 2, 1939, No. 29229. [Class 38 (v)] A loose-handle circuit-breaker is closed by depressing a handle 5 and driving, through the rack 3 and pinion 4, a shaft 2 on which is the centre carrier 6 of a differential gear. The carrier 6 has two bevel wheels 7 engaging a pair of crown wheels 8, 9 free on the shaft 2. During closure, and provided the closing operation proceeds unobstructed, the crown wheel 8 is held by the link 11 and crank 12 on the trip shaft 13, so that wheel 9 and its attached flywheel 10 rotate at twice the speed of shaft 2. If, however, the speed of shaft 2 falls off, the inertia of the flywheel drives the wheel 8 resversely and, after the lost motion between 11, 12 is taken up, the shaft 13 is operated to interrupt the transmission of the closing force. When the handle normally reaches the end of its closing stroke, a stop 14 on the rack engages a pin 15 on wheel 8 to prevent reverse rotation of the latter, and the lost motion allows the handle to come to rest without producing tripping. Instead of the toothed gearing, friction gearing may be employed.
Patent GB-1395356-A (GB)
Title: Direction finder
IPC: G01W1/16
Filed: 1972-06-22
Abstract: 1395356 Electromagnetic wave-energy direction-finders GENERAL ELECTRIC CO 22 June 1972 [30 June 1971] 29276/72 Heading H4D A direction-finder comprises orthogonal first and second electromagnetic wave-energy sensors, means for detecting the polarities of signals from said sensors to indicate the quadrant in which a wave-energy source is disposed, means for comparing the amplitudes of said signals to indicate the octant within said quadrant in which the source is disposed and means for determining the ratio of the magnitudes of said signals to indicate the angle within said octant at which the source is disposed. The apparatus is arranged so that the smaller of the signals X, Y is always the numerator of their ratio to prevent the ratio approaching infinity. In Fig. 2, it is shown that the polarities and relative amplitudes of the signals from the sensors, e.g. loops 11, 13, define the octants of the compass. The embodiment described is used to determine the source location of an electromagnetic pulse (Fig. 1, not shown), resulting from a nuclear detonation. An omindirectional sensor 15 gives a time pulse 1 when the received signal is above a threshold. Sensor 15 also feeds a detector 41 which controls normalizers 37, 39, the normalizers alternating the signals X, Y in accordance with the signal amplitude from sensor.15. This limits the dynamic amplitude range of the signals fed to the subsequent circuitry. Time pulse 1 enables polarity detectors 27, 29 and signals indicating the polarity of signals X, Y are thus fed to octant selector 31. The X, Y signals are also fed via amplifiers 33, 35 to magnitude comparator 43 which also provides a signal to octant selector 31 when time pulse No. 2 occurs. Octant selector 31 is therefore provided with the information indicated in Fig. 2, and programs counter 47 to count up or down from an initial angle. For example, if the source is in the octant 0 to 45 degrees counter 47 counts from 0 upwards and if the source is in octant 45 to 90 degrees the counter counts down from 90 degrees. At the occurrence of time pulse 2 reversing switch 51 is operated to send the larger or smaller of X or Y always along the same lines to ratio detector 53, i.e. the smaller of X, Y always constitutes the ratio numerator. Provided the mean value of signals X, Y is above a threshold a clock 59 is enabled to transfer the digitized ratio in detector 53 to the counter which thus gives the source azimuth. If the mean value does not reach the threshold, the clock is still enabled by time pulse No. 3 to ensure a read-out.
Patent GB-661739-A (GB)
Title: Electric circuit assembly and method of making same
IPC: H02G3/32
Filed: 1949-11-16
Abstract: 661,739. Making electric components; soldering. ERIE RESISTOR CORPORATION. Nov. 16, 1949 [Feb. 5, 1949], No. 29304/49. Classes 83 (ii) and 83 (iv). [Also in Group XXXVI] An electric circuit assembly comprises an insulating base 3 having a circuit component 1 clamped to one face thereof by a lead 4 soldered to, and overlying, a terminal 2 of the component, the lead 4 passing through an aperture 5 in the base and being soldered to a metal coating 6 on the other face thereof. The insulating base 3 and the body of the circuit component 1 are of material which is non-adherent to solder so that after the component 1 has been temporarily clamped to the base 3 by bending the lead 4 over the terminal 2, the soldered connections may be effected by immersion in molten solder. By this method, solder fills the aperture 5 around the lead 4 and securely anchors the components. Fig. 5 shows an arrangement of metal coatings 6a, 6bci, 6de, 6fg and 6hk on a base 3a to give the circuit shown in Fig. 7, each end of terminal-ended components (resistors and condensers) 1af, lbg, 1ch, 1di and lek being secured to the base by a lead 4 as above, the edges only of the base 3a being immersed in molten solder. The unwanted leads 4 are subsequently cut back to the metal coating and the assembly dipped in an insulating compound.
Patent GB-1124185-A (GB)
Title: A method of preventing adherence of marine life to a structure in sea water
IPC: B63B59/04
Filed: 1966-06-29
Abstract: <PICT:1124185/C6-C7/1> In preventing marine incrustations by locally effecting electrolysis of the sea water using an insoluble anode, cathodic deposition of calcium and magnesium compounds is reduced by passing a current at a cathode current density of at least 3 amps/sq. dm.  Typically the anode may be a rod of silver plated with platinum or a platinum alloy, titanium plated with platinum, or magnetic iron oxide surrounded by a cathode of parallel round rods, a net-like spiral or a perforated cylidrical member.  As shown a magnetic iron oxide rod anode 1 is supported by a short polyvinyl chloride sleeves 4 within mild steel supporting members 3, 3' joined by mild steel rod cathodes 2, the upper supporting member 3 having an outer flange. Such an assembly may be located in a pipe carrying sea water Fig.4 (not shown) or several such assemblies may be suspended by their flanged upper rims from an earthed cylindrical steel support having perforated sides to admit sea water disposed about a sea water inlet pipe provided with a strainer Fig.3 (not shown). Other geometrical patterns of cathods surrounding anodes are also disclosed Fig.5, 6, 7 (not shown).
Patent GB-282544-A (GB)
Title: Improvements relating to steam power installations
IPC: F01K9/00
Filed: 1926-11-22
Abstract: 282,544. McCallum, J., and Anderson, H. P. H. Nov. 22, 1926. Engines working on special systems or cycles. -In a steam power plant in which exhaust steam from an engine 3 is partially condensed in a condenser 5 and a pump 6 returns a mixture of steam and water from the condenser to the water space of the boiler 7, the mixture is heated on its way to the boiler in a heater 1 by the exhaust steam in its passage to the condenser. The U-shaped steam tubes 12 in the condenser open into chambers separated by a partition 13 having a by-pass aperture controlled by a valve 25 which is operated by a diaphragm acted upon by the pressure in the exhaust pipe. Air for the boiler furnace is drawn by a fan 19 around U-shaped tubes 11 in a preheater 4. Specification 271,928 is referred to.
Patent GB-771130-A (GB)
Title: Improvements in or relating to cord-operated electric ceiling switches
IPC: H01H17/08
Filed: 1954-10-13
Abstract: 771,130. Connecting cords to switches. PARSONS, Ltd., C. H., and HANDLEY, G. B. Oct. 13, 1955 [Oct. 13, 1954], No. 29453/54. Class 109. [Also in Group XXXVII] A cord connector for cordoperated electric switches comprises a cup member 9 having a small opening 10 in. the base and a larger opening 12 in the side wall, the mouth of the cup 14 being closed over to form a second small opening 13. A knot on the cord 15 or an anchorage ring 16 will pass through the larger opening but not through the smaller ones. Figs. 3, 4 and 5 (not shown) show connectors manufactured from solid rod, sheet metal and tubular metal respectively.
Patent GB-847323-A (GB)
Title: An acoustic-optical alarm system for motor vehicles and the like
IPC: B60R25/10
Filed: 1958-09-15
Abstract: 847,323. Preventing unauthorised use. TAPPERT, H. J., and GERLACH, H. Sept. 15,1958, No. 29491/58. Class 7(2). [Also in Group XXXVIII] In a car theft alarm (see Group XXXVIII) unauthorised opening of one of the car closures (e.g. doors, luggage compartment &c.) causes one of the switches 4 to close, energizing relay 3. Operation of the relay closes contact 5 to operate an ignition interruption switch 9 which comprises a bi-metalic strip.
Patent GB-751941-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J7/18
Filed: 1954-10-13
Abstract: 751,941. Thermionic cathode tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 13, 1954 [Oct. 16, 1953], No. 29527/54. Addition to 723,264. Drawings to Specification. Class 39 (1). The gas-replenishing disc of the cathode of the parent Specification is made of zirconium instead of tantalum.
Patent GB-159325-A (GB)
Title: Apparatus for grinding-in engine valves
IPC: B24B15/08
Filed: 1919-11-27
Abstract: 159,325. Davis, W. A. Nov. 27, 1919. Grinding interfitting parts together. - In a valve-grinder of the kind comprising toothed wheel secured to the valve-engaging spindle, which toothed wheel is engaged and oscillated by a continuously rotated driving-member, the latter consists of a cam or cam-like member, one part of which is of opposite pitch to the other, and said cam-member may be shaped so as to give the valve a progressive oscillatory movement on its seat. As shown, the valveengaging spindle c is secured to a toothed wheel m engaged by the cam-member g carried by a shaft h adapted to be rotated continuously by a handle n or by power. The member g has a portion i of right-hand pitch, see Fig. 4, another equal portion k of left-hand pitch, and an additional part to give the progressive movement, .the cam-member being double at the point r (see also Fig. 3), so that it is continually in mesh with the toothed wheel m. The handle a is formed with a recess o to accommodate the thumb.
Patent GB-484103-A (GB)
Title: Improvements in or relating to methods of treating material electro plated with tin
IPC: C25D5/48
Filed: 1936-10-30
Abstract: 484,103. Electroplating. BRITISH THOMSON-HOUSTON CO., Ltd., DUMAS, R., and MARSTON, H. Oct.. 30, 1936, No. 29561. [Class 41] Material electroplated with tin is treated to consolidate the crystalline structure of the tin coating by rumbling in a barrel containing steel balls and a lubricant such as soap suds. Oxidation during storage, which is detrimental to the subsequent application of solder is thereby prevented.
Patent GB-1420728-A (GB)
Title: Cephalosporins
IPC: A61K31/545
Filed: 1974-07-04
Abstract: 1420728 7 - Mandelamido - 3 - (1 - oxido - 2 - pyridylthiomethyl) - 3 - cephem - 4 - carboxylic acid derivatives SMITHKLINE CORP 4 July 1974 [5 July 1973] 29598/74 Heading C2C The invention comprises compounds of formula where R is hydrogen, halogen (other than iodine), C 1-4  alkyl, C 1-4  alkoxy, NO 2  or CF 3  or their non-toxic pharmaceutically acceptable salts, their preparation by reacting a mandelamidocephalosporanic acid with a mercaptopyridine-N-oxide or a salt thereof or by the displacement of the 3-acetoxy group of 7-aminocephalosporanic acid with the above mercapto compound and then acylating with the desired mandelic acid, the hydroxy group of the mandelic acid being protected by known means, and therapeutic compositions comprising the compounds of the invention and a suitable carrier.
Patent GB-280233-A (GB)
Title: Improvements in machines for cutting substances into slices
IPC: B26D1/14
Filed: 1927-11-05
Abstract: 280,233. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, (Assignees of Berkel, C. F. M. van). Nov. 5, 1926, [Convention date]. Cutting slices in succession. - In a slicing- machine having a disc knife, means are provided whereby the knife can automatically decrease its angular velocity on meeting a hard substance, and after having cut through the hard substance, to accelerate to its normal cutting velocity. As shown in Figs. 1 and 2, the knife 11 is carried on a shaft 12 journaled in the hub 22 of the chain wheel 10, and a torsion spring 24, connecting the chain wheel and the knife, forms a flexible coupling. When a bone is encountered, the knife speed is reduced, the spring 24 being highly stressed; and when the bone is severed the spring will accelerate the knife quickly to the normal speed. The machine is driven by a motor connected to a sprocket 3 by reduction gearing, and the knife is journaled at the end of an arm 13, pivoted at 7, which is raised by a rotary cam 16 and allowed to fall freely to produce a chopping action, a stop 19 limiting the downward motion. The arm 13 carries a roller 15, on a bracket 14, which bears on the cam 16. The feed is effected by a projection 31 on the cam 16 operating a pawl mechanism 30. A counterweight 33 is provided and the arm 13 is held stationary for grinding by a pivoted member 28, which is retained in either of its extreme positions by a spring 29, engaging a forked projection 26 on the arm 13.
Patent GB-406796-A (GB)
Title: Improvements in and relating to high-voltage bushings
IPC: H01B17/28
Filed: 1932-10-24
Abstract: 406,796. Insulators. MASLIN, A. J., 1136, Ridge Avenue, Sharpsville, Pennsylvania, U.S.A. Oct. 24, 1932, No. 29661. Convention date, Dec. 4, 1931. [Class 36.] A condenser type bushing comprises alternate conducting and dielectric cylinders 2, 4 respectively, the lengths of the conducting cylinders varying substantially in geometric progression. The spacing between the conducting cylinders is preferably such as to give a uniform potential drop across all the dielectric cylinders, the spacing being greatest at the radial centre X of the bushing and gradually decreasing toward each of the bushing walls Y, Z. In a modified construction, certain conducting cylinders vary in length in geometric progression and between these are grouped other conducting cylinders which vary in length in arithmetic progression.
Patent GB-1352077-A (GB)
Title: Method of separating broad and narrow lines of a frequency spectrum
IPC: G01R33/46
Filed: 1971-06-24
Abstract: 1352077 Frequency analysis G LAUKIEN 24 June 1971 [30 July 1970] 29711/71 Heading G1U A method of separating overlapping wide and narrow spectral lines in a complex electric signal formed by mixing the outputs of two momentarily excited generators, one being highly damped and being responsible for the wide line and the other being lightly damped and being responsible for the narrow line, for example as in pulsed nuclear magnetic resonance systems in which a very narrow pulse is applied to a sample so as to excite, simultaneously, all possible resonances in the sample, the method comprising the steps of momentarily exciting the generators, recording the decaying signal produced, and fourier analyzing the record of the signal, and being characterized in that the period over which the fourier analysis is performed starts either immediately after the excitation when it is desired to detect the presence of wide lines, or a sufficiently long interval after the excitation for the wide lines to have decayed to an unsignificantly low level when it is desired to detect narrow lines, and in that when wide lines are being detected the period over which the fourier analysis is performed is made sufficiently short for the energy contained in them effectively to be spread over a large part of the spectrum. In the preferred embodiment, the signal resulting from the momentary excitation is sampled and recorded at equally spaced instants, the spacing being variable so as to allow the largest frequency that is to be detected to be varied.
Patent GB-602678-A (GB)
Title: Improvements in or relating to diamond cutting tools
IPC: B24B53/12
Filed: 1945-11-08
Abstract: 602,678. Diamond tools. ENGINEERING DIAMONDS, Ltd., ALLEN, R., and ALLEN, J. Nov. 8, 1945, No. 29843. [Class 124] A diamond tool comprises three or more diamond studs 4, 5, 6 secured within a holder 7 parallel to the axis thereof by means of two or more grub screws 8, 9, each of which engages two studs. The studs may be disposed across the diameter of the holder.
Patent GB-436921-A (GB)
Title: Improvements in electric lighting installations
IPC: H05B39/06
Filed: 1934-10-18
Abstract: 436,921. Distant control systems; systems of wiring. COLLEY, A., Charmouth, Hackbridge Road, and BRYCE, Ltd., Kelvin Works, both in Hackbridge, Surrey. Oct. 18, 1934, No. 29868. [Class 38 (iv)] [See also Group XXXVII] In a lighting installation one or more of the lamp circuits A, B, C is connected directly to a distribution board 1 without the interposition of a manual switch, an electromagnetic switch 10, 11 or 12 being mounted on the distribution board and connected in the lamp circuit, and low voltage energization circuit of the switch being controlled from one or more points by push-button switches 28, 29. Each relay switch such as 10 comprises a single magnet winding 20 co-operating with a latching mechanism which winding causes tilting of the mercury switch 10 alternately in opposite direction on repeated energization thereof. In order to prevent waste of current due to prolonged closure of the push-button switch, a construction of switch is employed whereby depression of the button 44 which is surrounded loosely by a conducting collar 45 causes momentary completion of the circuit through a spring 47, a conducting face 46 on the button 44, the metal collar 45 and a brush contact 49 in the switch casing. The circuit is broken when the collar 45 is moved away from the brush 49 by depression of the button 43. The circuit is not reclosed during release. The switch 10 is mounted on one end of a shaft 16, the other end of which carries a cam disc 61 which is shaped to form an apex curving down to two abutments 59, 60. The cam co-operates with a finger 55 which is carried on the spring- controlled armature 53 of the relay and is arranged to be moved towards the shaft axis 16 by the armature 53, but is allowed restrained tilting movement relatively thereto. Energization of the coil 51 causes the finger 55 to slide down one side of the apex cam 62 and engage one of the abutments 59, 60 so as to rock the shaft 16. Release of the armature raises the finger 55 so that it is suspended above the apex cam in a position in which the next energization of the winding 51 will cause it to co-operate with the other face and abutment of the cam to rock the shaft 16 in the opposite direction. The distribution board may be divided into a high voltage and a low voltage part by a partition 17 through which the shafts 16 of the mercury switches 10, 11, 12 pass to their operating armatures 18. The low voltage circuits may be energized from a flash lamp type battery or from a step down transformer 15 on the distribution board. The push buttons may be duplicated for operating lamps from a number of points and may be arranged to be operated by doors &c. A master switch for the whole lighting system may also be controlled by a push-button switch and relay. Specification 390,022 is referred to.
Patent GB-966964-A (GB)
Title: Process and apparatus for the production of thin-walled hollow thermoplastic articles having a beaded edge
IPC: B29C51/18
Filed: 1960-08-30
Abstract: 966,964. Moulding hollow articles. A. W. THIEL. Aug. 30, 1960 [Aug. 31, 1959; Nov. 3, 1959], No. 29890/60. Heading B5A. In a process for the production of thin-walled hollow thermoplastic articles having a beaded rim of rounded contour, each article is shaped from a thermoplastic sheet to have an unbeaded and outwardly flared skirt at its rim portion, and then cut from the sheet and finished at its rim portion by engaging the skirt with a first heated die ring zone so that the skirt extends substantially perpendicular to the plane of the run of the article, and thereafter curling the skirt by engaging it with a curved surface of a second heated die ring zone. A thermoplastic strip 121, Fig. 2, is heated and passed beneath a shaping tool 122 comprising moulds 123 having projections 126 for forming the skirts on the articles. The tool 122 is lowered to engage the strip, and a chamber 125 therein communicating via ducts 127 with the mould cavities is evacuated to draw the strip into the cavities. Alternatively plungers 165, Fig. 5, operated pneumatically or hydraulically, raise the strip into the mould cavities 153 to be forced against the mould surfaces by suction applied above it and by compressed air applied beneath it. Each shaped article is cut from the strip by a punching device comprising knives 202, Fig. 6, secured by elements 203 to a carrier-plate 204. Aligning sleeves 205 engage the skirts 2 of the articles. The punched-out articles are ejected out of the sleeves 205 by bellows 207 which are contracted before and during punching and expanded by compressed air after punching. A plate 402, Fig. 10, carries the articles 201 by means of trestles 403 from a position below the punching device stepwise to a position below the bead forming device 422 comprising electrically heated moulds 423 each having an operative surface comprising an introductory zone 424, a deflecting and guiding zone 425, and a rounded shaping zone 426. The beaded articles are released by ejector bellows 428 and carried by the plate 402 to a transfer device (not shown) and thence to a packing station. Specification 966,965 is referred to.
Patent GB-1499212-A (GB)
Title: Gas burners
IPC: F23D14/68
Filed: 1976-01-22
Abstract: 1499212 Atmospheric burners C C TRAPP 22 Jan 1976 [24 Jan 1975] 29916/76 Divided out of 1499211 Heading F4T The description is the same as that of parent Specification, but the claims relate to a burner in which a gauze having antifriction properties to discourage lint from adhering thereto extends across a plurality of burner parts. Specification 1,499,213 is also referred to.