baber/WOPTO huggingface dataset:
Patent GB-1049936-A (GB)
Title: Production of porous articles
IPC: B29C44/44
Filed: 1964-02-25
Abstract: 1,049,936. Moulding porous articles. SOCIETA EDISON. Feb. 25, 1964 [March 2, 1963], No. 7761/64. Heading B5A. A process for producing shaped porous articles of thermoplastic resin consists in (a) heating expandible particles of thermoplastic material containing at least one expanding agent homogeneously dispersed, by a hot gas or vapour stream under such conditions that the particles become fully expanded but do not agglomerate; (b) allowing a tempering period; (c) introducing the expanded particles (substantially free from expanding agent) into closed moulds, heating the particles with hot gases or vapours in order to bring them to their incipient softening point while applying to them a mechanical compression simultaneously with said heating in order to agglomerate the single particles into a single porous body. The thermoplastic material may be a polymer of styrene and/or a copolymer of styrene, vinyl chloride, acrylonitrile or methylmethacrylate.
Patent GB-630485-A (GB)
Title: Improvements in or relating to miniature machine tools and the like
IPC: G04D3/00
Filed: 1946-03-12
Abstract: 630,485. Portable machine tools. GATES, P. March 12, 1946, No. 7763. [Classes 60 and 61(ii)] [Also in Group XXII] A kit of miniature machine tools comprises a supporting member 10 and an electric motor 3 having a pulley, the member and motor being mounted on a work bench or an equivalent surface 1 and a number of interchangeable tools, each of which includes a driving pulley 5 and supporting means 9 capable of being engaged by the supporting member, the driving pulley and supporting means of each rod being so located relative to one another that, when the tool is in use, the driving pulley may be coupled with the pulley of the electric motor by means of a driving belt 4. The latter passes over two pulleys 12 carried on a slotted arm 13 adjustably secured to a bracket on the surface 1 to enable the belt tension to be adjusted. The kit includes a drilling machine, a grinding machine and a lathe in addition to a vice 18, various hand tools, cutters, drills and taps. An anvil 16 may also be provided on the supporting member. The surface 1 may form part of a container the lid of which is fitted with clamps for securing the tools during transport.
Patent GB-116147-A (GB)
Title: Improvements in Power Transmission Gear Wheels.
Inventor: PARSONS CHARLES ALGERNON
IPC: F16H55/08
Filed: 1917-05-31
Abstract: 116,147. Parsons, Sir C. A., and Cook, S. S. May 31, 1917. Toothed wheels and pinions. - Toothed wheels and pinions for high-speed helical reduction gearing &c. are provided with teeth of such a form as to give a uniform distribution of pressure at a given load and to compensate for torsional flexure and bending between the bearings. Fig. 1 shows the corrections to be applied to the tooth-form of two pinions to which torque is transmitted from the end x. The curves a, b, c and c, d, e represent the torsional flexure, and the curves f, g, h and h, j, the bending between the bearings x, y, z. The sum of the deflexions is represented by the curves l, m, c and c, n, c, an approximation to which is obtained by two inclined straight lines. In cutting the teeth, the slide on which the tooth-generating hob moves is inclined at the required angle so that the radial penetration of the hob increases across the face of the gear blank, the greatest penetration being at the end at which the torque is applied. The correction may be made on either or both wheels which gear together.
Patent GB-1453036-A (GB)
Title: Delay lines
IPC: H03H7/34
Filed: 1973-02-16
Abstract: 1453036 Delay lines PLESSEY CO Ltd 14 Feb 1974 [16 Feb 1973] 7834/73 Heading H3U A delay line comprises a former consisting of an insulating, e.g. polyester tube 1 having a helical metal foil strip 2 embedded in the outer surface thereof,with a plurality of turns of an insulated wire 3 wound thereon with turns in each layer being axially spaced, and those in successive layers being circumferentially spaced, there preferably being two turns in each layer. The ends of the winding 3 are electrically connected, e.g. by soldering to terminals 4, 5 and a further terminal 8 is soldered to strip 2. Winding 3 is wrapped with self-adhesive insulating tape 9 and plastics end-caps 10, 11 are then heatshrunk on to the ends of the delay line.
Patent GB-1076659-A (GB)
Title: Improvements in or relating to wrapped electrical connections
Inventor: JACKSON EDWARD
IPC: H01R4/14
Filed: 1965-02-23
Abstract: 1,076,659. Attaching connectors to conductors. GENERAL ELECTRIC CO. Ltd. Feb. 8, 1966 [Feb. 23, 1965], No. 7851/65. Heading B3A. [Also in Division H2] A wrapped connection is formed between a terminal 3 and a wire 1, by means of a further wire 6, the wire 1 being bent to bring the overall width of its end portion to approximately the same width as the terminal 6. The wire may be bent to an undulating form, or the end may be bent back upon itself to increase its apparent width (Figs. 3 and 4, not shown). The sharp edge corners of the terminal member 3 cut into the wire 6 and the two wires 1 and 6 indent each other where they engage.
Patent GB-855895-A (GB)
Title: Improvements in or relating to colour printing
Inventor: ALLEN GORDON STANLEY JAMES
IPC: G03F3/08
Filed: 1957-03-11
Abstract: 855,895. Photographic reproduction. CROSFIELD Ltd., J. F. Feb. 27, 1958 [March 11, 1957], No. 7954/57. Class 40(3). In a method of photographic reproduction which produces coloured positives from which printing plates or cylinders are prepared, correction is applied to overcome the colour distortion introduced by the printing inks which absorb light outside their nominal colour range. Fig. 2 indicates an arrangement for printing a magenta positive in which three uncorrected negatives 14 (cyan, magenta and yellow) are scanned synchronously by light beams from the flying spot scanner 10, and the emulsion 20 to be exposed is positioned behind the magenta negative. Light passing through the negatives (negative and emulsion in magenta case) illuminates the cathodes of the three photomultipliers 16 which produce signals which are a function of the transmittance of their respective colour negatives. The outputs of the photomultipliers are applied to the terminals a via the logarithmic amplifiers 24 and the output of the logarithmic amplifiers is also inserted in circuits 28 and applied to the terminals c. A signal derived in the scanning circuit 30 from the difference between the signals representing the density of the correcting colour (in this case cyan only) and those of the colour to be corrected is passed through the mixer circuit 32, which receives a drive voltage from the circuit 33 by which the reference level of the signal is determined, to the antilog-circuit 34. The signal is then applied via the non-linear circuit 36, which attenuates the signal as its value increases, to the intensity central electrode of the CRT 10. The positive emulsion is thus exposed via the uncorrected magenta negative from a light source which is modulated by a colour correction signal. In a simpler arrangement, Fig. 3 (not shown), the logarithmic and antilog-circuits are dispensed with and the summation is performed with signals proportional to the transparency values of the negatives. Specification 835,111 is referred to.
Patent GB-140438-A (GB)
Title: A non-slipping or safety device for ladders
IPC: E06C7/42
Filed: 1920-03-17
Abstract: 140,438. Maxwell, J. July 15, 1918, [Convention date]. Ladders.-A device for preventing the end of a ladder from slipping comprises a half-tubular member 4 secured to the lowest rung by segmental sockets 6 and having a tubular stem for an adjustable stay 10 with rubber-faced shoe 11 to rest on the ground. Set-screws 9, 13, are provided to clamp the members 10, 4 in correct positions. In a modification, the stay consists of two slotted links 14, 19 adjustably fixed to the ladder and to each other by screws 15, 17.
Patent GB-512809-A (GB)
Title: Improvements in or relating to the heat treatment of work pieces of profiled cross-section
IPC: C21D9/34
Filed: 1938-03-17
Abstract: 512,809. Heat-treating metal articles. BOCHUMER VEREIN FUR GUSSSTAHLFABRIKATION AKT.-GES. March 17, 1938, No. 8221. Convention date, April 21, 1937. [Class 72] Heat-treatment of articles of irregular crosssection comprises heating the article to hardening temperature, quenching the part to be hardened, and tempering the required parts by supplying heat thereto in such a way that more heat is supplied to the parts of the surface to be hardened which are farthest from the centre of gravity of the cross-section and less to the parts which are nearest the centre of gravity. In the apparatus shown, for treating wheels, the wheel a after being heated throughout is quenched on a rotary table b by sprays d, after which burners f are lowered into position to heat the wheel more strongly at the flange and the portions of the tread adjacent thereto than at the remainder of the tread. The burners may be adjustable relatively to each other, and may be replaced by electric heaters.
Patent GB-141334-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1920-03-19
Abstract: 141,334. Soc. Anon. pour l'Exploitation des ProcÚdÚs Westinghouse- Leblanc. April 5, 1919, [Convention date]. Straight tubes between headers.-In a surface condenser having a partition or screen G causing the steam to pass downwards from the inlet A and enter the tube nest at the lower part, the partitions P<1> in the headers so divide the tubes into a number of crescent-shaped groups that the paths taken by the steam from the different inlet points to the air outlet channels F are all equal.
Patent GB-121079-A (GB)
Title: Improvements in Typewriting Machines.
Inventor: FAIRWEATHER WALLACE CRANSTON
IPC: B41J17/00
Filed: 1918-05-17
Abstract: 121,079. Fairweather, W. C. May 17, 1918. Web and sheet feeding, guiding, and clamping arrangements; ink-ribbon mechanism.-Relates to web-manifolding arrangements of the kind described in Specification 23349/14, in which carbon sheets, interleaved with the webs and connected to a trolly, are fed with the webs during writing and are retracted by the trolly when the platen is lifted away from the usual feed-rollers. (1). A condensed-record sheet or web 18 is employed, and clamps are provided for holding the record sheet stationary when the platen is lifted to the position shown in Fig. 5 for permitting the carbon sheets 15, 16, 17 to be retracted and the copy webs 8, 9, 10 to be drawn up to the usual stop 20. As shown, the record-sheet passes through a slot 23 in the paper-table 24, the slot being formed by a bar 25 which serves also as a guide. The clamps consist of fingers 68 which are normally raised above the paper-table and are caused to clamp the recordsheet when the platen and the paper-table are moved into the position shown in Fig. 5. Each finger is laterally adjustable on a plate 70 secured to a rock-shaft 71, and is formed with a part 80 for guiding the record-sheet through the slot 23 and also with a bend 84 which is adapted to enter a slot 69 and is roughened at the sheet-engaging part. The bends serve also as gauges for the end of the record-sheet when it is first inserted. The fingers are controlled by the locking-lever 19 for the frame 6 that carries the platen and the table 24. The lever carries a pin 73 normally engaging a cam 74 on a lever 77 which is pivoted at 75 to one of the plates 70 and is formed with a. boss bearing on the table 24. On moving the lever 19 backwards, a spring 78 on the shaft 71 causes the fingers 68 to grip the record-sheet. A lug 90 on the plate 70 limits the movement of the lever 77. (2). The trolly 29 is pushed backwards by means of a handle 36 and is arrested by an adjustable stop 42, which is positively secured to the rail 44. The stop is provided with a cap 46 bearing two pins 45, Fig. 2, which are held in engagement with holes 51 in the rail by a spring 47. The stop is released by depressing a lever 52 which engages the cap 46. (3). The trolly may be provided with a guide, such as two V-shaped flanged plates 55, for preventing the record-sheet from obstructing the trolly. As shown, the plates 55 are laterally adjustable for different sizes of sheets and can be turned out of the way to render accessible the carbon sheets. Each plate is hinged on a flanged bracket 56 which is secured to the trolly bv screws 58 passing through slots 57. The hinge-pins 63 are inclined and engage ears 62, 64 on the plates and the brackets respectively, the plates being formed with lugs 65 which abut on the brackets.
Patent GB-536513-A (GB)
Title: Improvements in or relating to electric induction motor systems
IPC: H02K17/08
Filed: 1940-05-09
Abstract: 536,513. Zinc alloys. SCOPHONY, Ltd., JONES, P. L. F., WALOFF, D., and WIKKENHAUSER, G. May 9, 1940, No. 8338. [Class 82 (i)] [Also in Group XXXV] The windings and end-rings of a single-phase induction motor may be of an alloy of 96 per cent. of zinc and 4 per cent. of aluminium.
Patent GB-540265-A (GB)
Title: Improvements in and relating to electrical water heaters
IPC: F24H9/20
Filed: 1940-05-09
Abstract: 540,265. Actuation of switches. SHEPHERD, A. R. May 9, 1940, No. 8353. [Class 38(v)] In a water heater wherein one, two or more heating elements are switched in according to how far the water supply is turned on, water enters a chamber 14 through an inlet 15 and presses against a vane 12 mounted on a spindle 1 0 and leaves the chamber through an outlet 16 leading to the heating chamber 6. If the water is only turned on slightly its pressure will only be sufficient to rotate the vane 12 through a small angle against a return spring 30 and the water will pass to the outlet 16 round the edges of the vane and through a valve in the vane. If the water is fully turned on, the vane will be rotated its maximum distance so as to uncover the outlet 16. The rotation of the spindle successively introduces resistances into circuit, an extension of the spindle carrying contact arms which successively engage fixed contacts.
Patent GB-312429-A (GB)
Title: Improvements in and relating to liquid heaters
IPC: F24H1/20
Filed: 1928-03-20
Abstract: 312,429. White, A. E., (Bastian-Morley Co.). March 20, 1928. Internally-fired boilers. - A spreader 10, for mounting above the gas burner in boilers, comprises conical upper and lower walls 10<a>, 10<b> forming a. liquid heating and circulating chamber through which flue passages 24 extend. Circulation through the spreader is effected by cold liquid entering by the annulus being directed by two passages 20 to the outer edge of the spreader, delivery of heated water taking place by way of the central pipe 25.
Patent GB-718541-A (GB)
Title: Improvements in portable coverings for plants
IPC: A01G13/04
Filed: 1952-04-03
Abstract: 718,541. Plant-protectors. MARSHALL, G. H., and JOHNSON, A. R. April 2, 1953 [April 3, 1952], No. 8513/52. Class 6 (2). [Also in Group X] A portable covering for plants comprises a sheet-support member 4, e.g. a wooden block as shown, or a metal plate, having at least two mutually-inclined plane surfaces 4a on which the sheets 3, e.g. of wood or metal, are supported, a member or members 5, e.g. a metal plate for clamping the sheets 3 in contact with the faces 4a, and a rubber pad 6 interposed between the sheets 3 and member 5. A threaded bolt 7 and wingnut 8 secure the parts 4, 5, 6 together. The upper abutting edges 3a of the sheets 3 are cut away at 3b to accommodate a handle 9 pivotable in the ends 4c of the block 4.
Patent GB-1338340-A (GB)
Title: Radiation apparatus
IPC: A61N5/06
Filed: 1972-02-24
Abstract: 1338340 Radiation treatment PHILIPS GLOEILAMPENFABRIEKEN NV 24 Feb 1972 [27 Feb 1971] 8625/72 Heading A5R In apparatus for therapeutic or cosmetic use, and incorporating an infra-red lamp 5 or 7, an ultra-violet lamp 3, and an adjustable timeswitching mechanism 17 for controlling their period of energization, the timer control knob 35 may be rotated to provide a duration of radiation prescribed by tables defining a programme of daily treatments for different skin sensitivities by moving the mechanically coupled pointer 25 to that mark appropriate to the day of treatment of that one of a plurality of scales which corresponds to the table entries for the appropriate skin sensitivity, whereby the need for reference to the tables is dispensed with. Scales corresponding to each skin sensitivity catered for are marked on the periphery of a rotor 21, the desired scale being selected by rotation of the rotor by an adjustment wheel 24.
Patent GB-471602-A (GB)
Title: Improvements in and relating to mountings for instruments such as photographic cameras
IPC: F16M11/04
Filed: 1936-03-23
Abstract: 471,602. Hinges. WILLIAMSON, C. M. March 23, 1936, No. 8634. [Class 65 (ii)] [Also in Group XIV] A mounting for adjusting instruments, such as photographic cameras, in azimuth and altitude and having a single clamping member for both adjustments comprises a member 5 rotatably seated at 3, 4 in one side of an aperture in a base 1, an instrument mounting 7 having an arc-shaped under part 7 which is guided for rotation in a groove 8, Fig. 2, in the member 5, and a clamping bar 9 which causes the mounting 7 and the member 5 to clamp the base between them. The bar 9 engaging a curved slot 10 in the mounting 7, is held by screws 11 on rods 12 carried by the member 5 so that tightening of the screws holds the member 5 against its seating in the base and holds the curved surface 6 of the mounting against a surface 15 of the base. A socket 18 may adapt the mounting for use with the camera described in Specification 456,225, [Group XX], and a cover 19 may be provided.
Patent GB-1457188-A (GB)
Title: Gas burner
IPC: F23D14/62
Filed: 1974-02-26
Abstract: 1457188 Gas burners VENNOOTSCHAP ONDER FIRMA RODIAC 26 Feb 1974 [26 Feb 1973] 8648/74 Heading F4T A gas burner comprises a cast iron body 1 having an open upper side covered by one or more burner caps 3 of perforated metal plate and of arcuate cross-section. The caps are clamped to the body with a sealing element 6 therebetween by fixing elements. In the embodiment shown the elements are C-shaped clamps 8. The co-operating clamping edges and surfaces of the clamps, caps and body diverge in the direction P of fixing whereby the body and caps are clamped against each other by wedge action. A tongue 12 at one end of each clamp engages in a respective notch 13 in the body to lock the clamps. Transverse ridges 4 of the body support the opposed ends of the caps. The caps may be of stainless steel or inchromated steel. In an alternative embodiment, Figs. 4 to 6 (not shown), the open upper side of the body is covered by a single cap having flat longitudinal edges bolted to flat longitudinal faces on the body, the bolt holes through the cap being elongate to facilitate relative thermal expansions. The cap may comprise a number of longitudinally-spaced groups of transverse rows  of perforations connected by one row or a group of rows of perforations extending along the longitudinal centre line of the cap, Fig. 7 (not shown).
Patent GB-329434-A (GB)
Title: Improvements in cloth expanders, cloth guiders and the like
IPC: D06C3/06
Filed: 1929-03-18
Abstract: 329,434. Farrell, E. March 18, 1929. Feeding webs.-A curved cloth-expanding roller comprises a core, a rubber sleeve around the core, and trunnions secured to the ends of the sleeve and rotatably mounted in bearings. In one form, Fig. 1, the core consists of a coil spring a which, together with the rubber sleeve b, is secured at its ends to enlarged portions c<1> of trunnions c rotatable in bearings d. The trunnions rotate on ball bearings in sleeves e, Fig. 2, having a central bulbous portion which can be clamped in various angular positions by the cap of the bearing d, the arrangement being such that upon release of the bearing caps the curvature of the roller can be adjusted by moving the bearings towards or from each other, after which the sleeves e are again clamped in position. Fig. 2 also shows a modification of the roller in which a floating curved core bar g is employed, the trunnion members c' being mounted on ball bearings on the ends of the bar g. The core spring h is in sections separated by and secured to bearing rings i mounted on ball bearings on the bar g. These bearings are spaced apart by lengths of tube j. Instead of springs h, rubber sleeves may be employed. The trunnions c may be in two parts connected by a universal joint.
Patent GB-561203-A (GB)
Title: Improvements in and relating to photographic developers and methods of producing photographic images by development
IPC: G03C5/305
Filed: 1942-06-25
Abstract: 561,203. Photographic developers. KODAK, Ltd. (Eastman Kodak Co., Dearing, L. M., and Guell, C. H.). June 25, 1942, No. 8753. [Class 98 (ii)] A photographic developer contains a developing agent and an aliphatic amine having an unsubstituted alkyl, alkenyl, or alkylene group which has from 3 to 7 carbon atoms in its molecule, the pH of the developer and the concentration of the aliphatic amine being so adjusted together as not to cause detrimental fogging of unexposed silver salt in the time required for development of a latent image therein. The pH of the developer should be from 10 to 11.5. The developer may be a black-and-white developer, and may be used in the first development in the reversal process, or may contain a colour coupler. The developer gives rise to less change of colour balance, and gives improved resolving power and definition. Amines specified are allylamine, diallylamine, propylenediamine, n-propylamine, iso-propylamine, n-butylamine, di-n-butylamine, n-amylamine, and di-n-amylamine. Mixtures of amines (e.g. iso-propylamine and n-butylamine) and mixtures of an amine with other silver halide solvents (e.g. thiocyanate or ammonia) may be used. In example 1, a first developer for the reversal process comprises metol, hydroquinone, sodium sulphite, sodium carbonate, potassium bromide, 5-nitroindazole, and n-butylamine, the pH being adjusted to 10.5 by addition of sodium hydroxide solution. In example 2, the developer comprises metol, hydroquinone, sodium sulphite, sodium carbonate, potassium bromide, and iso-propylamine. In example 3, a colour developer comprises diethyl-p-phenylenediamine hydrochloride, sodium sulphite, sodium carbonate, propylene diamine, o-phenylphenol, and sodium hydroxide.
Patent GB-277611-A (GB)
Title: Improvements in printed plywood sheets
IPC: B41M1/38
Filed: 1927-03-30
Abstract: 277,611. Marks, E. C. R., (Br³ning & Sohn, Akt.-Ges., J.). March 30, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 21, 1927]. Veneers.-Ornamental designs are printed in a continuous series on thin sheets of veneer as they leave the machine producing them, and the printed veneers are then glued to other veneers to produce a compound or plywood veneer suitable as a wall covering and ornamented on one or both sides. The printing is effected in a known manner such as by continuous rotary lithographic printing in one or more colours.