baber/WOPTO huggingface dataset:
Patent GB-573635-A (GB)
Title: Improvements relating to electroplating the inner or concave surfaces of segments ofcylindrical and like structures
IPC: C25D7/10
Filed: 1943-12-13
Abstract: 573,635. Electroplating apparatus. VANDERVELL PRODUCTS, Ltd., and SALMON, J. E. Dec. 13, 1943, No. 20862. [Class 41] Apparatus for plating the inner surfaces of partcylindrical or like articles, such as half-bearings for engine shafts, comprises an elongated trough A, along the bottom of which run a pair of eathodic rails B supporting a number of the articles E end-to-end. An insulating, anode-supporting block C rests on the edges of the latter so as to, cut off the backs and edges of the articles from the anode-rod D. To economize electrolyte, insulating or conducting blocks may fill most of the space at the back of the articles, Fig. 3 (not shown), or, where several pairs of rails B are located side-by-side in one tank, Fig. 6 (not shown), the blocks may occupy the spaces between the rows of articles, clearance being left between the blocks and articles and anode-support C in both cases. The anode may be spaced away from its support C so as not to lie axially of the articles, Fig. 4 (not shown). Insulation covers the securing screws G and extensions of the rails B. In use, the drains H may be left open so as to provide continuous circulation of electrolyte through the apertures J. The arrangement enables accurate pre-fixing of the quantity of electricity required to obtain very thin deposits and no machining of the backs of the articles is necessary. One application is to the formation of a uniform leadindium composition by successive coating with lead and indium.
Patent GB-257613-A (GB)
Title: Improvements in and relating to motor fuels
IPC: C10L1/14
Filed: 1926-08-25
Abstract: 257,613. La RiboisiÞre, J. Aug. 26, 1925, [Convention date]. Motor spirit consists of liquid hydrocarbon or hydrogenated naphthol, and small proportions of an aromatic amine and an alkyl ether or ketone. Hydrocarbons specified are gasolene, benzol, naphthenes, and hydrogenated hydrocarbons. Ethers and ketones specified are diethyl ether, dimethyl ether, acetone, and diethyl ketone. Amines specified are aniline, the ethyl and methyl anilines, and diphenyl amine. In an example 100 litres of benzol. 3 litres of aniline, and 1-1.5 litres of ether or acetone are used, with or without gasolene. Specification 140,041 is referred to. The Specification as open to inspection under Sect 91 (3) (a) comprises the use of liquid hydrocarbon, aniline or its derivatives, and a blending agent, e.g. an ether or a ketone. Ethyl-methylketone is included in the examples of ketones. This subject-matter does not appear in the Specification as accepted.
Patent GB-844181-A (GB)
Title: An improved helicopter prime mover speed control
Inventor: CHILLSON CHARLES WHITE
IPC: B64C27/54
Filed: 1957-10-21
Abstract: 844,181. Controlling helicopter engines. CURTISS-WRIGHT CORPORATION. Oct. 21, 1957, No. 20948/59. Divided out of 844,180. Class 4. The rotor of a helicopter is driven by a prime mover, the throttle of which is connectable by selector means either to a manual control element or to a governor. In the Fig. the pilots' collective pitch lever 16 has a twist grip 17a which is rotatable, and engages a spline 100 on the lever 16 to rotate with the lever which is connected through bevel gears 76, 77 and link 18 to the throttle (not shown). Twist grip 17a is slidable between upward and downward positions on lever 16, defined by two detents 82, 84, and is connected by a cable 79 to a manual/automatic changeover lever 58 on the governor mechanism 20. In the upward position (detent 84 engaged), lever 58 is placed by cable 79 in one position, whereby the governor output signal appears on an output lever 19 connected to control link 18, the throttle, and the twist grip. In the downward position (detent 82 engaged) lever 58 is moved to another position, whereby the governor output signal is removed from lever 19 and link 18, the twist grip being adjusted manually to control the throttle. The twist grip may be moved beyond the normal upward position by compressing a spring 88. The grip then leaves spline 100, and is connected to a rod 92 through dog clutch members 86, 90. Rotation of the grip then rotates bevelgears 94, 95 and moves link 98 and lever 54a, which sets the datum speed at which the governor maintains the engine. In a modification, Fig. 5 (not shown), the governor datum setting arrangement 86, 88, 90, 92, 94, 98, and 54a is omitted, and the manual /automatic changeover lever 58 acts on the governor mechanism so that on changeover to automatic throttle control, the governor maintains the engine speed at that prevailing when automatic control was initiated. In an electrical version of this embodiment, Fig. 2 (not shown) the changeover lever 58 is actuated by a'solenoid controlled by a push button switch on the twist grip. A further switch is operable by the governor so that if overspeeding occurs, during manual control, the solenoid is actuated to select governor control. A master switch can, however, be operated by the pilot to disable the solenoid and maintain manual control at all times. The governor mechansim 20 is described in Specification 844,180 [Group XXVI].
Patent GB-1342914-A (GB)
Title: Defect detecting apparatus
IPC: G01N21/89
Filed: 1971-04-19
Abstract: 1342914 Counting apparatus EASTMAN KODAK CO 19 April 1971 [11 Feb 1970] 21022/71 Heading G4D [Also in Division G1] In an apparatus for detecting defects in a running web 12, in which a scanning optical system enables longitudinally extending portions 1-12 of the web to be examined sequentially and repetitively by corresponding detector circuits, a count of small-scale defects, which are themselves unobjectionable, is maintained, and if this count indicates that the concentration of such defects is greater than a predetermined level an alarm signal is generated. The scanning optical system may be either of those described in Specification 1,307,397 and copending Application 22042/71 respectively. As the scanning beam crosses the edge of the web to begin the scanning cycle, a clock pulse generator 70 is actuated. The beam scanning rate is synchronized with the clock pulses so that each channel 1-12 is defined by six pulses, after which time a counter 74 overflows to reset a flip-flop 76 to its ZERO state until the next passage of the beam across the corresponding channel. Considering a single channel during its operative period, two conditions may obtain at the end of the period: (a) At least one pulse, caused by a web defect, is received. The first stage of binary counter 94 stores a ONE, and this counter is not cleared. (b) No defect pulse is received. The first stage of counter 94, which may include a ONE from the previous scan across this channel, is cleared, and the ONE is registered in one stage of a twelve stage shift register 104. If there was no fault in the previous scan, a ZERO is entered in the shift register. If two successive scans by a single channel register a defect then a ONE is entered in the second stage of counter 94, signifying a web fault. The location is recorded (48) as described in Specification 1,307,397, and counter 94 is reset. Hence isolated faults only are registered (104), and at the end of each web scan the contents of the shift register are transferred to an accumulator 118. For each ONE read out from the register through AND-gate S112, the accumulation is increased, whereas each ZERO decreases the accumulation. This accumulation is compared (S120) with a reference accumulation (S122) to provide an alarm when this reference level is exceeded.  By altering the respective amounts by which the accumulator S118 increases and decreases in response to the register read out of a ONE and ZERO respectively the alarm is actuated in response to different concentrations of single defects.
Patent GB-154337-A (GB)
Title: Improvements in or relating to galvanized iron washing tubs
IPC: D06F1/00
Filed: 1919-08-28
Abstract: 154,337. Watson, G. R., and Watson, E. Aug. 28, 1919. No Patent granted (Sealing fee not paid). Wash-tubs of iron are provided with separate rims of angular cross-section, one member 6 of which is secured to the inside of the tub while the other member 8 projects over the edge to form an external beading. Reference has been directed by the Comptroller to Specifications 4230/81, [Class 66, Hollowware], 5070/87, 12180/91, and 22372/99, [all in Class 120, Spinning], and 117,017, [Class 66, Hollow-ware] .
Patent GB-168744-A (GB)
Title: Improvements in and relating to machines for moulding concrete building blocks
IPC: B28B7/00
Filed: 1920-07-13
Abstract: 168,744. Harvey, J. B. July 13, 1920. Moulds.-A moulding-machine for concrete building-blocks has two parts 10<a>, 10<b>, each consisting of two adjacent sides and fitting together at diagonally opposite corners so that the longitudinal axis of the mould is at an angle to that of the framework. The sides are moved outwards and upwards to release the cast block by means of two pairs of levers 5<a>, 5<b>, and 6<a>, 6<b>, each pair being pivotally connected by a common centre-pin mounted on the side frame 1, and actuated by depressing horizontal bars 8 which move on the legs of mounted U-shaped rods 9 and engage the levers by means of projections 7 working in slots 6'. The mould may be locked in the closed or open position by engaging projections 16 by means of recesses 17 in the levers 13, 14 operated by a connecting-rod 15. Simultaneous movement and correct registration are ensured by subsidiary levers 11, 12, and short levers 18 connected to the bars 8 by rods 19, and by a small pin on one part corner of the mould which engages a corresponding recess on the opposite corner.
Patent GB-923423-A (GB)
Title: An improved fluid flow control valve
IPC: F16K3/14
Filed: 1961-06-13
Abstract: 923,423. Valves. CHIKSAN CO. June 13, 1961 [June 15, 1960], No. 21229/61. Class 135. A valve comprises two axially aligned pipe sections 34, 35 connected together to form a space between them. An apertured valve plate 86 is manually movable in an arcuate plane to control flow through the pipe. An apertured wedge member 62 is movable transversely of the pipe through a screw mechanism to press the valve plate into contact with one of the pipes. 0-rings 70, 71 and 72 are preferably provided for sealing the flow passage.
Patent GB-641344-A (GB)
Title: Improvements in or relating to devices for generating electrical oscillations
IPC: H03B21/02
Filed: 1945-08-20
Abstract: 641,344. Valve generating circuits. MERLES, A. J. Aug. 20, 1945, No. 21242. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 30, 1946.] [Class 40 (vi)] In an oscillation generator providing a number of discrete frequencies by mixing two frequencies from each of two basic series, the following ratios are of the same order and not smaller than 0.04: (a) frequency spacing to the mean frequency in each series ; (b) mean frequency in the lower to the mean frequency in the upper series; (c) twice the lowest frequency in the lower series to the highest frequency in the upper series. A crystal-controlled oscillator 02 generating 100 kc/s. controls a second generator 01 generating 10 kc/s., harmonics of each generator being produced and fed to filter 03, 04. By depressing suitable switches C3, C4 frequencies from each series are fed to a mixer M1, tile sum frequency only being passed by the highpass filter F selected by the appropriate switch CF which may be ganged to the corresponding switch C4. The difference frequencies may also be utilized, Fig. 2 (not shown), thus reducing the number of filters 04 required. The harmonic generator 1 may take the form shown in Fig. 3, suitable harmonics from the 100 kc/s. oscillator 02 being selected by filters 06 and applied together with a fixed harmonic selected by filter 05 to the mixer M2, the output being fed to the filters 04. In a modification, Fig. 5 (not shown), both low-pass and high-pass output fillers are employed, and in a further modification, Fig. 6 (not shown), using a third basic generator of 1 kc/s. the output frequency is determined to I kc/s.
Patent GB-302202-A (GB)
Title: Improvements in electrical conductors and cables
IPC: H01B9/02
Filed: 1927-08-12
Abstract: 302,202. Bolton, M. A., and Walker, J. W. Aug. 12, 1927. Conductors are coated with cadmium and provided with a lead sheathing, either separate or formed integral with the wire as a thick coating. The cadmium-coated wire may serve as a bond wire in lead sheathed cables. A cadmium-coated wire may be insulated by vulcanized rubber, bitumen &c. The cadmium may be applied by passing the conductor (preferably copper or silver) through a bath of metallic cadmium or by electrolysis. The conductor forming the cathode may be run rapidly through a bath containing double cadmium cyanide with anodes of metallic cadmium. A plurality of coatings may be used, e.g. tin or cadmium; or the cadmium may be deposited on a copper conductor coated with tin by immersion in a bath of metallic tin.
Patent GB-462114-A (GB)
Title: Improvements in or relating to the manufacture of casein products
IPC: D21H17/22
Filed: 1935-07-26
Abstract: In the preparation of dispersions or solutions of casein, e.g for use as glues, paints or coating compositions, an alkali metal or ammonium metaphosphate is used.  The metaphosphate, which may be a hexametaphosphate, may include small amounts of pyrophosphate and other alkaline materials such as tri-sodium phosphate, sodium carbonate, bicarbonate, borate or metasilicate.  The composition may be used, e.g. with the addition of lime or caustic soda and fillers, for sizing paper or paper pulp, or textiles, or as a paint or glue. Heavy metal salts, other than those of iron, may be added.  The composition will emulsify oil in water.ALSO:In the preparation of dispersions or solutions of casein, e.g for use as glues, paints or coating compositions, an alkali metal or ammonium metaphosphate is used.  The metaphosphate, which may be a hexametaphosphate, may include small amounts of pyrophosphate and other alkaline materials such as tri-sodium phosphate, sodium carbonate, bicarbonate, borate or metasilicate. The composition may be used, e.g. with the addition of lime or caustic soda and fillers, for sizing paper or paper pulp, or textiles, or as a paint or glue.  Heavy metal salts, other than those of iron, may be added.  The composition will emulsify oil in water.ALSO:In the preparation of dispersions or solutions of casein, e.g for use as glues, paints or coating compositions, an alkali metal or ammonium metaphosphate is used.  The metaphosphate, which may be a hexametaphosphate, may include small amounts of pyrophosphate and other alkaline materials such as tri-sodium phosphate, sodium carbonate, bicarbonate, borate or metasilicate.  The composition may be used, e.g. with the addition of lime or caustic soda and fillers, for sizing paper or paper pulp, or textiles, or as a paint or glue. Heavy metal salts, other than those of iron, may be added.  The composition will emulsify oil in water.
Patent GB-1392647-A (GB)
Title: Photographic projectors
IPC: G03B27/72
Filed: 1972-05-08
Abstract: 1392647 Projection printing HOH & HAHNE HOHLUX GmbH 8 May 1972 [19 May 1971]  21315/72 Heading G2A A projection printing apparatus for producing colour separation negatives of equal density range includes a projector head 1 having a light source (e.g. xenon lamps 2), a transparency holder and lens 4, a light conduit 5 permitting light from the lamps 2 to by-pass the transparency and a filter unit able to insert identical filters in the light paths 18, 19 which are directed on to a predetermined area, a light sensing device being laid on the area so that the relative intensities of the light via both paths can be adjusted to a predetermined reading. As shown the filter unit includes a magazine 8 rotated by motor 9 through gears 10 and having limit switches 27. There are associated pairs of filter holders 11, 17 associated with the paths 18, 19 respectively. A rotary magnet 14 operates levers 13, 15 to advance/retract the filter 11 into the path 19. The light regulator 6 includes a plane mirror and a lens to direct and focus the light from the conduit 5 on to the predetermined area. A control 26 and flexible shaft 25 operate an iris shutter in the regulator, a second shutter may also be provided to completely obscure the light path 18. The light sensing device has an aperture located on the predetermined area and directs the incident light by means of a light conduit to the cathode of a photo-multiplier. The anode current is supplied to logarithmic amplifiers. The device also includes a multiple contact switch which simultaneously controls selection of the filters and switches in resistors to adjust the anode voltage and the performance of the amplifiers. To limit the range over which the sensing device has to operate its aperture is adjustable so that in conjunction with the other adjustable aperture the range of illumination over which the photomultiplier need give a linear response is reduced.
Patent GB-364516-A (GB)
Title: Process of and apparatus for thickening wood oil
Filed: 1931-07-27
Abstract: <PICT:0364516/III/1> In thickening wood oil by heat the oil is pumped continuously through a heater 3 to a collecting vessel 5 from which it falls continuously at the same rate to a cooler, the conditions being such that it leaves the heater at 260-280 DEG  C. and is in the vessel 5 just sufficiently long to raise its temperature about 20 DEG C. by polymerization.  A pump 1, meter 2, mineral oil bath 4, gauge-glass 8, cooling jacket 7, a stirrer 6, and an outlet valve 10 are provided.
Patent GB-678008-A (GB)
Title: Improvements in mining machines
IPC: E21C35/20
Filed: 1949-08-18
Abstract: 678,008. Mineral planers. MAVOR & COULSON, Ltd., and SPROUL, J. C. Dec. 5, 1950. [Aug. 18, 1949] No. 21467/49. Class 68 (i). In a wedge head planer, of the type described in Specification 674,028, a bevelled edge disc cutter 19 is mounted to rotate about a boss on a holder 18, it being held in position thereon by a plate 24 and bolts 25. On the disc are formed obliquely positioned teeth 26 which have a flat leading face 27 so that, as the disc is thrust against the buttock of the seam, it is caused to rotate by the resulting reaction thereon so that it removes the dust from the cutting zone. Specification 678,071 also is referred to.
Patent GB-402709-A (GB)
Title: Improved arrangements for controlling motors in electric traction systems
IPC: B60L15/04
Filed: 1933-01-09
Abstract: 402,709. Control of D.C. motors. BACQUEYRISSE, L., 4, Villa Maillot, Ncuillysur-Seine, France. Jan. 9, 1933, No. 21492. Convention date, Jan. 30, 1932. Divided on 398,383. Drawings to Specification. [Class 38 (iii).] During the transition of compound-wound traction motors from series to parallel and vice versa, a part of the total number of motors, one half for example, is short-circuited, and the shunt excitation of all the motors is reduced to a suitable value. Speed control and regenerative braking are effected by control of the shunt and series fields.
Patent GB-142014-A (GB)
Title: Rubber heel
IPC: A43B21/06
Filed: 1919-09-02
Abstract: 142,014. Granger, D. D. Sept. 2, 1919. Protectors, construction of.-Rubber heels are provided with continuous grooves 3, Fig. 1, on upper and lower surfaces which cause a suction effect. The edges of the lower grooves are undercut as shown at 3, Fig. 2. The upper surface has a central concavity 20 with inclined edges and a groove 11 with straight edges. A central washer 13 is incorporated in the protector to afford a hold for nails &c. In a modification, Fig. 5, the upper surface has not a suction effect but has air passages 23 as shown.
Patent GB-406576-A (GB)
Title: Improvements in or relating to cord or chain-operated electric switches
IPC: H01H17/00
Filed: 1933-08-01
Abstract: 406,576. Snap-action switches. PARSONS, Ltd., C. H., and HANDLEY, G. B., Wharfdale Road, Tyseley, Birmingham. Aug. 1, 1933, No. 21575. [Class 38 (v).] A switch adapted to be moved alternately " on " and "off" by successive pulls of a chain comprises a contact arm d connected by ordinary spring toggle quick-action mechanism to an operating arm g, and a link pivoted at its centre to the arm g and pivoted at n to a link l to which the chain s is attached. The link j is preferably U-shaped, the open end of the U being at the top and therefore able to pass over from one side to the other of the arm g. The closed end of the # is adapted to bear against one or other of two cam-shaped arms p fixed to the arm g. When the chain s is pulled, a pivot stud m on the link l which engages an elongated slot n in the link j first slides to the end of the slot. The link j is then pulled down and round and as it bears against an arm p the lever g is forced into the other position of the switch. When the chain 8 is released, a return spring t pushes up the link l and a wing q on the latter by sliding up the cam surface of the left arm p pushes the link j into its alternate position with respect to the arm g. The link l now lies to the right of the arm g so that the next actuation of the chain will move the switch back again.
Patent GB-1438602-A (GB)
Title: Method of preparing ceramic substances by sintering
IPC: H01L41/43
Filed: 1974-05-15
Abstract: 1438602 Sintered oxide bodies GROUPEMENT POUR LES ACTIVITES ATOMIQUES ET ADVANCEES 15 May 1974 [18 May 1973 30 Nov 1973] 21587/74 Heading C1A Insulating ceramic substances having controlled porosity and passive with respect to corrosive molten metals (e.g. steel, aluminium) are prepared by (a) selecting a fine powder of an oxide of an element from groups III and IV (both A and B subgroups) (b) sintering part of the fine powder under high pressure and at a high temperature, (c) crushing the sintered product thus obtained (d) mixing the crushed product with the remaining part of the fine powder to which has been added 0À1-8% (based on the total weight of the mixture) of an alkali metal fluoride, and (e) sintering the resulting composition at a temperature between 850 and 1350 C. Oxides of zirconium, hafnium, lanthanum yttrium and aluminium are preferably used; lithium fluoride is preferably used as the additive. Mixtures of these Group III and IV oxides may be employed. The mixture of crushed product and fine powder may be vibrated before the final sintering operation.
Patent GB-928404-A (GB)
Title: A process for producing sintered bodies of semi-conductor material
IPC: B22F3/00
Filed: 1960-06-20
Abstract: 928,404. Semi-conductor materials. SIEMENS-SCHUCKERTWERKE A.G. June 20, 1960 [June 23, 1959], No. 21634/60. Class 37. A semi-conductor material suitable for use in thermocouples is fragmented by crushing between plates, or by pounding or impact and the powder thus produced sintered to form a coherent shaped body. The fragmentation is such that the new surfaces exposed in the process have little opportunity to contact the fragmenting tools and thus become contaminated. Bismuth telluride containing from 45 to 60% by weight of bismuth is fragmented by crushing between polished steel plates. The fine fraction is then sifted off, plastically deformed by hot pressing at 450 C., and afterwards sintered for an hour at 380  C. in an evacuated vessel to produce a P-type material with thermoelectric properties close to those of a material of similar composition produced by crystallization from a melt. By doping the initial alloy with 0.15% by weight of silver iodide an N- type material may be obtained.