baber/WOPTO huggingface dataset:
Patent GB-459953-A (GB)
Title: Improvements in or relating to reflectors
IPC: F21V7/09
Filed: 1935-08-02
Abstract: 459,953. Reflectors for lamps illuminating large surfaces. WENDEL, R., Roslyn Heights, Long Island, Nassau, New York, U.S.A. Aug. 2, 1935, No. 21985. [Class 75 (ii)] A lamp adapted to substantially uniformly illuminate a comparatively large surface, such as a ceiling, wall, floor or roadway, having a length which is several times the distance from the lamp to the surface, is at least partially open towards the surface to enable direct light to illuminate the surface in the vicinity of the lamp, and comprises two curved reflectors on opposite sides of an incandescent electric light bulb, one reflector projecting light beyond and to one side of the vicinal area whilst the other reflects light falling thereon substantially wholly upon that portion of the first reflector which projects light to the more remote areas of the surface. The reflectors are approximately the same height as the bulb, and they are arranged substantially symmetrically and concentrically therewith, the first reflector being shielded from view when in position and projecting a beam of light which just clears the upper edge of the second reflector. The first reflector may be substantially ellipsoidal and the second substantially spherical, but the former is preferably of such a shape that it has an inclined major axis, is substantially elliptical in vertical sections through its proximate focus coinciding with the light source, and substantially circular in horizontal sections oblique to the major axis. By this means the remote focus is in the form of a circular band extending over about 180‹ and the light is spread over a relatively wide area. The reflectors may be made of silvered glass, or of metal coated with rhodium, chromium, silver, or nickel. In the form shown the reflectors 15, 16 are carried by a holder 10 formed with ventilation apertures 26, and are fitted at the top with a semicircular conical cover plate 17 having a reflecting or non-reflecting inner surface, and with a semicircular conical reflector 21. The latter is embossed or stamped to give it an irregular reflecting surface 46, and its upper edge 47 is preferably in horizontal alignment with the upper edge 27<1> of the cover plate 17. The reflector 15 is built up from circular arcs 34-35, 35-36, 36-37, 37-38 having centres at the points 42, 41, 40, and 39 respectively, whilst the reflector 16 is built up from circular arcs 27-43 and 43-44 having centres at the centre point 25 of the filament of the bulb 23 and at the point 45 respectively. The Specification contains directions as to how the positions of these various points may be determined. The horizontal sections of the reflector 15 may be circular or parabolic. If the reflector 15 is substantially ellipsoidal its proximate focus coincides with the point 25 whilst its remote focus is at a point 48 slightly above the extreme outer edge 47 of the conical reflector 21. In a modification, the reflector 15 is extended up to the level of the point 27<1> and the cover plate 17 is flat.
Patent GB-986218-A (GB)
Title: Improvements in or relating to a method and apparatus for electrolytically removing material from a workpiece
IPC: B23H3/10
Filed: 1963-06-04
Abstract: In the anodic erosion, using D.C., of material from an electrically conductive workpiece wherein an electrolyte is pumped to and through a work gap between the workpiece and a cathode, the used electrolyte containing insoluble particles formed from eroded workpiece material is recovered for re-use by causing gas to bubble through a body of the used electrolyte to float flocs of the eroded material to the surface of the electrolyte and at least periodically skimming the scum from the surface. As shown, electrolyte such as a common salt solution is pumped at a pressure of 40-250 p.s.i. controlled by valves V2, V1 from a tank 46 along a fixed pipe 42 through a filter F for dirt to a feed hose 30 connected to an injector conduit 28 in an insulating block 22 which is clamped to the workpiece W to define a working area and through which projects a hollow cathode 10 insulated except at its working tip and carried by a ram 12.  The electrolyte, eroded material and evolved gas (mainly hydrogen) is removed through the cathode, hose 34 and pipe 62 and passed through a valve V3 so that the stream enters a flotation well 44 open to the air through a perforated T-junction pipe 64 at about 1/3 of the working pressure, say 50-75 p.s.i.  This results in flocculant material being carried to the surface while other insoluble material sinks to the bottom of the well.  Scum may be raked or blown by air jets from nozzles 70 into a gutter 55 from which its is withdrawn through a valve.  If required scum formation may be assisted by bubbling air from line 76 and header 74 through the electrolyte in the well to which household detergents or pine oil may be added.  Clear electrolyte between the scum and the bottom settlements passes through pipe 52 into the supply tank 46 to which make-up solution is added from reservoir 66. <PICT:0986218/C6-C7/1>
Patent GB-1483278-A (GB)
Title: Roller blinds
IPC: E06B9/322
Filed: 1975-05-22
Abstract: 1483278 Roller blinds S P S STAHL  PROFILIER UND SCHNEIDEBETRIEB MORHARD O H G 22 May 1975 [10 June 1974] Heading A4B A roller blind shaft formed from bendable sheet material comprises a tube 1 of polygonal crosssection provided along its length with spaced apart pairs of slots 2a serving to receive and anchor the ends of straps 3 intended to be secured to a blind, the slots 2a of each pair being disposed on opposite sides of a longitudinal edge of the tube 1 and extending substantially parallel to the tube axis, the portion of the tube wall between the slots being inwardly deformable. The portion of tube between the slots of a pair may be deformed by a hammer blow to clamp the strap end. Alternatively, the strap end may be looped around the tube portion between the slots of a pair. The longitudinal edges 11, 12 of the sheet from which the tube is formed comprise interfitting dovetail formations. The slots 2a may be rectangular or may have rounded or pointed ends.
Patent GB-1292949-A (GB)
Title: Improvements in or relating to the production of low-temperature coke
IPC: C01B32/384
Filed: 1971-04-19
Abstract: 1292949 Activated coke BERGWERKSVERBAND GmbH 19 April 1971 [21 March 1970] 22106/71 Heading C1A [Also in Division C5] Hollow cylindrical articles made of coke are activated by gas, e.g. in a rotary pipe furnace or in a fluidized bed. The articles are made by extruding a mixture of a pulverulent carbonaceous material, e.g. coal, coke, charcoal or peat, and a liquid or plastic binder, e.g. hard or soft pitch, tar or anthracene oil, at a temperature in the range 50‹ to 95‹ C., and coking the hollow articles, see Division C5.
Patent GB-731381-A (GB)
Title: Improvements in or relating to apparatus for producing strand material utilizable astextile yarns
IPC: D02G3/40
Filed: 1952-09-03
Abstract: 731,381. Yarns of fibres bonded by adhesive. ABERFOYLE MANUFACTURING CO. Sept. 3, 1952 [Sept. 11, 1951 ; Oct. 2, 1951], No. 22164/52. Class 120(3). Apparatus for producing fibrous strands utilisible as textile yarns comprises means for continuously applying fluent adhesive in strip or sheet form to a supporting surface, means for applying an excess of fibres to the strip or sheet, means for setting the adhesive and means for removing the excess non-adhering fibres. The apparatus may be as described in Specification 731,380 or the rotating drum employed in these prior disclosures may be modified by the provision of spaced shallow circumferential grooves that pick up adhesive from a trough and, after excess adhesive has been scraped away, have fibres pressed into them. Another form of apparatus consists of an endless belt 15e driven by pulleys 55, 56 and on which a mat M<SP>1</SP> of fibres is delivered. Laterally-spaced nozzles 17e deposit strips of adhesive on the mat M<SP>1</SP>, a further mat M of fibres is desposited on the mat M<SP>1</SP> and pressure is applied by a roller 23e. Setting of the adhesive is carried out by means 25e and excess fibres are removed by brushes 26e, 58 and suction members 28e, 60.
Patent GB-788931-A (GB)
Title: Improvements in or relating to the separation of organic mixtures
Inventor: PACOUD ANDRE
IPC: C07C51/46
Filed: 1954-07-29
Abstract: The components of a mixture of one or more aliphatic carboxylic acids, water and formaldehyde are separated by rectifying the mixture in a distillation column in the presence of an auxiliary organic liquid which is insoluble in water and, which forms with water and formaldehyde, but not with the acid or acids, an azeotropic mixture having a boiling-point below that of the acid or acids, recovering anhydrous acid or acids from the base of the column and separating formaldehyde as an aqueous solution from a heterogeneous liquid phase condensed from the vapour phase of the column.  The auxiliary organic liquid may be di-isopropyl ether, di-butyl ether, isopropyl or butyl formates or acetates, methyl isopropyl ketone, or methyl isobutyl ketone, when the acids are formic acid and acetic acid.  A mixture also containing a ketone having a boiling-point below that of the acid or acids, such as acetone, may also be separated using an auxiliary organic liquid incapable of forming a binary azeotrope with the ketone or a ternary azeotrope with the ketone and water, and the boiling-point of the azeotropic mixture which it forms with formaldehyde and water must be between that of the ketone and the acid or acids; examples are isopropyl formate and isopropyl acetate. The ketone may be removed with the aqueous formaldehyde solution, or, using fractional distillation, pure ketone vapour may be withdrawn at the top of the column, and the azeotropic mixture vapour lower down. In examples: (1) isopropyl ether is used in the separation of a mixture of acetic and formic acids, formaldehyde and water, and (2) isopropyl acetate is used with a mixture also containing acetone.
Patent GB-1316407-A (GB)
Title: Photographic apparatus for the production of copies
IPC: G03G15/26
Filed: 1971-04-19
Abstract: 1316407 Photo-copying apparatus GESTETNER Ltd 19 April 1971 [19 Feb 1970] 22205/71 Heading G2A Photo-copying apparatus, as shown for electrophotographic projection printing, having an exposure window 12 of a size suitable for copying an A4 sheet original is arranged so that a double size (i.e. A3) original can be copied in two stages, the two images being positioned side by side on the same copysheet. For A4 originals, the copy paper is withdrawn from a roll 16 and advanced until its leading end operates a switch 33, which operates a device 18 to cut the web. The cut sheet 15 is then advanced to a suction box 23 where an exposure is made via a lens and mirror system. A pivotal auxiliary lens may be provided to give a reduced size image, in which case a second supply roll of narrower width is provided for use therewith. For A3 originals, having a central zone with no writing thereon, the switch 33 does not operate the device 18. A first half of the original is placed with one edge against an abutment 35. The copy web is advanced until stopped on the suction box 23 as before, and the first exposure is made. Then the other half of the original is placed over the window 12 with the opposite edge against abutment 36. The web is advanced again, the leading edge causing a switch 37 to operate the cutting device 18. A switch 38 halts the sheet advance when the second part thereof is positioned for exposure. After the second exposure, the sheet is developed. Two stacks of pre-cut sheets, each stack a different size may be provided instead of the roll and cutting device. The appropriate stack is then selected for sheet feeding when an original is placed on the window 12.
Patent GB-824672-A (GB)
Title: Means for attaching articles to the edges of smooth sheets
Inventor: FERNBERG ERIC BERGER
IPC: F16B5/12
Filed: 1956-07-18
Abstract: 824,672. Sash lift. F.T. PRODUCTS Ltd. Aug. 22, 1957 [July 18, 1956], No. 22266/56. Class 20(3) [Also in Group XIV] An article, e.g. a finger grip 11, is attached to the edge of a smooth sheet 10, e.g. of glass, by means of a U-shaped spring clip 16 having internally and rearwardly directed prongs 17, 19, and which is forced over an adhesive strip 20 stuck to the corresponding edge of the sheet 10, the finger grip 11 then being sprung over the clip 16 with shoulders 14, 15 on the grip 11 snapping over the out-turned ends of the two limbs of the clip 16. Instead of using an adhesive strip, a rubbery paint may be applied to the edge of the sheet before the clip is fitted. Alternatively, an adhesive material may be applied, respectively to the inside of, or forced under, the clip before, or after, it has been forced over the edge of the glass. The edge of the glass may be etched and then dipped into a solution of adhesive before the application of the clip. Side flanges 21, 22 on the grip 11 hide the clip 16 and the adhesive strip 20.
Patent GB-999853-A (GB)
Title: Apparatus for treating metal strip
Inventor: ELSDON MICHAEL BISHOP
IPC: B23D25/04
Filed: 1962-06-08
Abstract: 999,853. Cutting by fusion. BRITISH OXYGEN CO. Ltd. June 7, 1963 [June 8, 1962], No. 22295/62. Heading B3V. An apparatus for treating, particularly flame cutting, a longitudinally moving metal strip 2, has a carriage 1 adapted to be clamped to the moving strip by coupling means comprising engaging members 8 movable into and out of non-slipping engagement with the strip and retarding means 12, 13, 14 to enable the carriage to accelerate smoothly to the speed of the strip. In operation, engaging members 4 with arcuate faces 8 are moved transversely into engagement with the strip by piston 9 in hydraulic cylinders 10. The members 4 pivot about pins 5 between stops 6, 7 and this pivotal movement is retarded by pistons 12 in hydraulic dashpot cylinders 13 whose ends are interconnected by bleed passages 14. Thus, the carriage is accelerated smoothly to the speed of the strip, whereupon a number of gas-cutting torches mounted on the carriage are ignited automatically to sever the strip and are then extinguished. The acceleration of the carriage is adjusted by a control in the bleed passages 14. In another embodiment, Fig. 2 (not shown), a single cylinder 10 and a single dashpot cylinder 13 are coupled by linkage to a pair of engaging members 4.
Patent GB-860596-A (GB)
Title: Improvements in diaphragm for fluid spring and methods of making same
IPC: B29D22/00
Filed: 1959-06-30
Abstract: 860,596. Pneumatic springs. UNITED STATES RUBBER CO. June 30, 1959 [Aug. 4, 1958], No. 22402/59. Class 108(3). A flexible tubular diaphragm D Fig. 2 for a pneumatic spring comprises two superimposed layers 13, 14 of cord fabric coated with a flexible fluid-impermeable composition such as rubber and folded at an inwardly flared and beaded end portion 12. The cord fabric may be weftless or have a weakened weft andis wrapped to give a chord angle B of between 15 degrees and 75 degrees. The material may be nylon, rayon, cotton, steel or glass. The reduced end portion 12 is located and seated between flanges 16, 17 of an end plate 15 and the large end is beaded as at 11 for attachment to the cylinder (not shown) of the fluid spring. In a method of making the diaphragm D, impregnated cord fabric 23 Fig. 4 is wrapped over a pair of mandrels 19, 20 and held by clips 24, the end plate 15 being yieldingly mounted on the end of one mandrel 20. The cords are brought into engagement with the flanges of the plate 15 either by relatively rotating the mandrels 19, 20 or by winding wire or cord 25 (not shown) about the centre of the tube 23 to gather the fabric on to the plate 15. One end of the tube 23 is then folded over the other end to give a fold line at the plate 15. The other end of the diaphragm is then enlarged and wrapped with bead wires and the assembly is then moulded and cured under heat and pressure to its final form. Specification 773,069 is referred to.
Patent GB-779425-A (GB)
Title: Improvements in or relating to methods of and apparatus for removing lint from roll doctor
IPC: D21G3/00
Filed: 1955-08-04
Abstract: 779,425. Doctors of paper-making machines &c. LODDING ENGINEERING CORPORATION. Aug. 4, 1955 [Aug. 6, 1954], No. 22450/55. Class 96. Fibre &c. scraped from a roll 12 by a doctor blade 22 is cleared by one or more air jets 34 directed towards one end of the blade and enclosed in a hood 24 which is hinged at 26 on the blade holder 20. The free edge 28 of the hood 24 just clears the roll 12, the clearance being variable by adjusting riders 30 secured in brackets 32. The compressed-air supply pipe 38 for the jets 34 is connected with a shut-off valve, a filter and a solenoid valve with an automatic timer so that the air jets are supplied intermittently. Air and fibre &c. from the hood may be received by a cowl which may be connected with a suction pump, and which may have air jets and/or water sprays to aid in removing the fibre &c. In a modification, a felt or rubber strip at the free edge of the hood contacts the roll 12.
Patent GB-1399312-A (GB)
Title: Door hinge
IPC: E05F1/06
Filed: 1973-05-10
Abstract: 1399312 Hinges KASON HARDWARE CORP 10 May 1973 22457/73 Heading E2F A rising hinge comprises a frame mounted part 17 formed with a barrel 18 having a blind bore to receive a sleeve 23 which is prevented from rotating and has a bore 29 terminating in an inclined base cam face 30. The door mounted part 13 has a hexagonal bore, closed by a cap 47, within which is secured by circlip 52 a hexagonal section shaft extension 50 of a hinge pin 55 which is formed at its base with an inclined cam face 57 intended to seat on face 30. Upon opening movement of the door relative rotation between pin 55 and sleeve 23 creates a rising motion.
Patent GB-258295-A (GB)
Title: Improvements in and relating to heat-resisting metallic articles
IPC: C23C10/30
Filed: 1926-09-14
Abstract: 258,295. British Thomson-Houston Co., Ltd., (Assignees of Ruder, W. E.). Sept. 14, 1925, [Convention date]. Coating. - To protect articles made of an alloy of iron and chromium, the article is coated with aluminium and then heated to cause the aluminium to alloy with the surface metal of the article. An article of a malleable alloy of iron and chromium is coated with aluminium by the process described in Specification 3752/12 or by mixing powdered aluminium with a solution of nitrocellulose and amyl acetate or wood alcohol and applying the mixture to the article by spraying or brushing or if in the form of wire by the well-known dipping process and the coated article is then heated at a suitable temperature, e.g. 750-950‹ C. to cause the aluminium to alloy with the article to form a protective layer of an alloy of iron, chromium and aluminium. Specification 179,306, [Class 82 (i), Metals. Extract. ing &c.], is also referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the articles may be made of an alloy of iron and nickel or iron, chromium and nickel. This subject-matter does not appear in the Specification as accepted.
Patent GB-889769-A (GB)
Title: Slowly acting insulin preparation in crystalline form
IPC: A61K38/28
Filed: 1958-07-15
Abstract: Insulin crystals of uniform size and containing from 0.25 to 0.52 mg. of protamine and from 0.030 to 0.085 mg. of zinc per 40 International Units of insulin, the molar ratio of protamine to zinc being preferably between 3.67 : 1 and 5 : 1 are produced by adding zinc and protamine in the form of their salts or by adding a suspension of zinc and protamine which has been previously precipitated with phosphate buffer to a suspension of protamine insulin crystals in the presence of a phosphate buffer.  The relative amounts of zinc, protamine and phosphate buffer in the final mixture is such that the suspension is approximately free from zinc and protamine in solution after the reaction and the molarity of the preparation with respect to phosphate may be between M/37.5 and M/150.  The reaction takes place at room temperature at pH values of about 6 to 8. Specification 643,268 is referred to.
Patent GB-614816-A (GB)
Title: Improvements in or relating to vices
IPC: B25B1/24
Filed: 1946-08-01
Abstract: 614,816. Vices. AIR DUCTS, Ltd., and STAPLES, H. J. A. Aug. 1, 1946, No. 22938. [Class 61 (ii)] Tn a power-operated vice, the movable jaw consists of, or is moved by, a wedge sliding on a base member. The base member 1 has an inclined face 2 on which a wedge 3 slides, held in position by an undercut groove and tongue. The wedge is moved by means of a fluidpressure cylinder and piston, or electrically, by means of a solenoid and plunger. The fixed jaw 7 of the vice is mounted above the wedge 3 on an upstanding arm 5 and may be provided with holes 11 to act as a drilling jig. In a modification, the arm 5 is made U-shaped and is attached to both sides of the body 1. In a further modification a plate forms the movable jaw and slides vertically on the arm 5, the wedge acting on its undersurface. A stop may be provided on the wedge to limit its release movement. Ratchet and pawl mechanism may be provided to lock the wedge 3 in gripping position, and an end-plate 10 also acting as a drilling jig may be secured to the arm 5.
Patent GB-210118-A (GB)
Title: Improved manufacture of gray iron
IPC: C22C33/08
Filed: 1922-09-26
Abstract: 210,118. Meehan, A. F. Sept. 26, 1922. Purifying and refining.-To convert white iron into gray iron, a carbon precipitating silicide other than a carbon silicide, substantially free from iron, such as calcium silicide, is added to molten white iron either in a ladle or in a bath within the furnace.
Patent GB-1175724-A (GB)
Title: Character Display Systems
IPC: G06F3/153
Filed: 1967-05-18
Abstract: 1,175,724. Cathode-ray tube displays. INTERNATIONAL BUSINESS MACHINES CORP. 18 May, 1967 [27 May, 1966], No. 23006/67. Heading H4T. A character display system comprises two or more repeatedly scanned cathode-ray tubes supplied with character generating control signals from a recirculating store in which the control signals for characters to be displayed on one tube are interleaved with those controlling the display on the other tubes, the arrangement being such that each tube displays spaced characters during the scanning of the actual spaces on the other tubes. In the described embodiment which utilizes two display tubes termed EVEN and ODD (Figs. 5a and 5b), information appertaining to each character and comprising binary coded decimal signals (BDC) identifying the character, together with video information V 1 -V 5 , forming the control signals for generating the character by selective bright-up of dots in a 7 + 5 matrix on a vertically scanned line raster are stored in the recirculating store, which comprises two delay line buffers, with the signals appertaining to characters to be displayed on one tube interleaved with those appertaining to characters to be displayed on the other tube. Additionally the BCD and V 2 , V 4  signals for the EVEN display tube stored in one line interleaved with the V 1 , V 3 , V 5  signals for the ODD display tube the remaining signals being stored in similar fashion in the other line, so that the two displays have the form shown in Figs. 5a and 5b. By adjustment of the vertical shift circuits the two displays may be made to appear on the same horizontal line. The operation of the recirculating store to regenerate the stored data, to allow data to be "written-in" and the control the display is described in connection with Figs. 1 and 2 (not shown), the various operations being illustrated in terms of timing, switching and other waveforms in Fig. 4 (not shown). In the operation of the system the binary coded information is gated out and supplied via a serial-to-parallel converter to a common buffer register. The display lines designated BCD are not modulated by the BCD data and thus provide horizontal spaces between characters. The data "writtenin" to the store may be derived from a keyboard or from a computer which may also supply command signals controlling the display production.