baber/WOPTO huggingface dataset:
Patent GB-959787-A (GB)
Title: Apparatus for determining the projected area of objects
Inventor: MISRAHI JACOB
IPC: B07C5/14
Filed: 1960-11-07
Abstract: 959, 787. Electric selective signalling systems. NEW ELECTRONIC PRODUCTS Ltd. Nov. 7, 1960, No. 38181/60. Heading G4H. Apparatus for measuring the area of objects such as planks of wood P comprises a plurility of micro-switches 21 or photo-electric devices arranged along the length of P, perpendicular to the direction of travel of conveyer belt 4, and each controlling a relay 22 so that the number of switches 19 which are closed depends on the length of P, and width sensing means, e.g. photo-cell 31 and lamp 30, controlling relay 32, opens a switch 33 in the common channel 18 so as to allow signals, applied in succession to the individual channels 17, to step on counter 40 for a time dependent on the width of P. In this way bursts of signals are applied to counter 40, the number of signals in each burst being determined by the length of P, and the number of bursts being determined by the width of P. Counter 40 may accumulate the total area of a number of planks and its contents may be read out into a printer 50 at any time desired. The printer may also be arranged to print, on the plank itself if desired, the length and width of each plank. Length registering relays 22 may have a set of contacts controlling the printer 50 and another set controlling a visual indicator such as a multi cathode discharge tube. The width of P may be registered by connecting one of channels 17 to a counter 53 through a switch 52 controlled by relay 32, the output of the counter 53 being applied to the printer. The signals applied to channels 17 may be derived from a rotating disc 11 and photo-cell 13 or from an oscillator. The frequency of the oscillator may be varied in accordance with the speed of the conveyer, and it may also be varied independently in accordance with the thickness of the planks in order to measure their volume as well as their area.
Patent GB-889322-A (GB)
Title: Improvements relating to the chromating of zinc and cadmium
IPC: C23C22/24
Filed: 1960-11-07
Abstract: Chromate coatings are produced on surfaces of zinc or cadmium or of alloys consisting predominantly of one or both of these metals by treating the surfaces with a solution containing hexavalent chromium and a selenium compound, the concentration of selenium (as SeO2) being less than the concentration of chromium (as CrO3).  The solution may also contain activating or other additions e.g. magnesium ions and radicals of nitrate, sulphate, chloride, fluoride, complex fluoride, formate and boric acid.  The selenium compound may be selenium dioxide, selenious acid, selenic acid or a salt and its concentration is preferably 0,3g/1 (as SeO2).
Patent GB-990694-A (GB)
Title: Double axial air gap motor
IPC: H02K17/16
Filed: 1962-10-09
Abstract: 990,694. Electric motors. GENERAL DYNAMICS CORPORATION. Oct. 9, 1962 [Oct. 9, 1961], No. 38219/62. Heading H2A. A planar-air-gap induction motor comprises an eddy-current disc 130 running between two stators 70, 70<SP>1</SP> each carrying a shortchorded polyphase winding. The rotor comprises a thin web between the stators and thicker peripheral parts lying inside and outside the stator for the accommodation of the rotor currents over the inactive circumferential parts of their paths. The web part may have radial slots extending at least partly through the web, and these may be skewed as shown in Fig. 9, and may be filled with an insulating strengthening material bonded to the sides of the slots. The outer or inner rim of the rotor may carry integral or bolted-on fan blades 138, 138<SP>1</SP> which circulate air along the paths shown, and in particular, radially of the rotor disc and along the open ends of the winding slots. The rotor disc may be of hard drawn copper, chrome copper, aluminium, brass or titanium. The stator cores 72 are of spirally wound steel tape secured by restraining rings 74, and welded or otherwise secured to the casing. Radial slots are milled in the cores to carry the windings. The flux waveform is improved by slight mutual rotation of the stators so that their slots are out of register (Figs. 6 and 8, not shown). Alternatively a similar effect may be produced by dividing the winding of each stator into two mutually angularly displaced parts to produce grading of the slot-conductors (Fig. 4, not shown). It is stated that attraction between the stator and rotor, which could deflect the rotor to one stator and cause sticking, is avoided by making the rotor wholly or mainly of non- magnetic material. The induced rotor currents produce a repulsion effect towards each stator.
Patent GB-1118593-A (GB)
Title: Preparation of hydroxyalkyl mercaptans and sulphides
Inventor: RANDALL DAVID IRWIN
Filed: 1965-09-01
Abstract: Cellulose is cross-linked by treatment with 3,31 - dichloro - 2,21 - dihydroxypropyl sulphide using the method of Specification 696,282.ALSO:Compounds of the formula <FORM:1118593/C2/1> wherein R, R1, R2 and R3 when taken alone represent H, aliphatic, cycloaliphatic or aromatic radicals, or R and R1, R2 and R3, R and R2 or R1 and R3 when taken together, represent cycloaliphatic or aromatic radicals with the proviso that at least one of R, R1, R2 or R3 is not hydrogen, are made by reacting an epoxide containing at least 3 C atoms with H2S in the presence of 2,21-thiodiethanol.  The mercaptans predominate when the molar ratio of epoxide to H2S is 1:1 and the sulphides predominate when the ratio is at least 2:1. Reaction may be effected at 50-250 DEG  C. under reduced, normal or increased pressure.
Patent GB-1462491-A (GB)
Title: Process for preparing prilled porous ammonium nitrate
IPC: C06B31/28
Filed: 1974-09-03
Abstract: 1462491 Prilled ammonium nitrate; fuel oil explosive MITSUBISHI CHEMICAL INDUSTRIES Ltd 3 Sept 1974 [25 Sept 1973] 38483/74 Headings C1A and C1D Prilled ammonium nitrate having a water content of 2-5%, obtained by prilling 93-98% ammonium nitrate solution, is dried in such a manner that: (a) the temperature is lowered below the III-IV transition temperature at least once when the water content is in the range 0À3-1À5%, and (b) the drying is then continued at a temperature higher than the III-IV transition temperature. An anticaking agent, preferably a straight chain aliphatic monoamine or salt, may be added after drying, the product being used in fuel oil explosives.
Patent GB-975700-A (GB)
Title: Device for punching of cards and other record carriers
IPC: G06K/
Filed: 1963-10-01
Abstract: 975,700. Selective punching. SPERRY RAND CORPORATION. Oct. 1, 1963 [Oct. 12, 1962], No. 38644/63. Heading B4B. A mechanism for punching record carriers, e.g. cards, comprises a number of continuouslyrotating cam discs 3 each formed with a punch cam 4 which when engaged by a pivotallymounted punch lever 8 causes the lever 8 to actuate a punch 26, and an electromagnet 17 to move each lever 8 from an initial position into one in which it is engaged by the cam 4. Each cam disc is also formed with a return cam 5 adapted to engage the lever 8 after actuation and to retract it. The lever 8 engages, with clearance, a slot in the punch so that the initial movement of the lever by the electromagnet does not produce any movement of the punch. The lever 8 is held in its initial position by a spring 14. In operation, when an electromagnet is energized, the armature 16 thereof moves the end 9a of the corresponding lever 8 downwardly until a projection 10 on the lever engages the cam 4 and is entrained in the passage 6 between the cams 4, 5. When the projection 10 passes beyond the passage 6, i.e. at the end of the punch operation, the cam 5 engages the lever 8.
Patent GB-1319273-A (GB)
Title: Knitting machines
IPC: D04B15/54
Filed: 1970-08-12
Abstract: 1319273 Knitting machines G BILLI & C SpA 12 Aug 1970 [14 Aug 1969] 38829/70 Heading D1C A knitting machine has a resilient yarn feed system comprising a lever 29 carried by and biassed against a yarn guide 21 20 that the yarn can slide between the lever 29 and the guide 21 in the normal feed direction but is clamped by the lever if it moves in the opposite direction. As shown a rotary cylinder knitting machine with a welt dial has a pneumatic device 11 for holding yarn ends and yarn guides 21 operated by cam drum 19. Guides 21 each consist of aligned eyelets 23A, 23B and a surface 21C against which the yarn is pressed by the end 29A of lever 21 which is biassed by a weight 29B.
Patent GB-1282863-A (GB)
Title: Improvements in or relating to gaseous fuel burners
Inventor: HEATH DENNIS JOHN
IPC: F23D14/10
Filed: 1968-08-16
Abstract: 1282863 Gas burners RADIATION Ltd 14 Nov 1969 [16 Aug 1968] 39276/68 Heading F4T A gaseous fuel burner includes burner port supply zones 12, 19, two fuel supply passageways 5 and 20 and a fuel supply separation boundary 3 positioned to separate the two passageways 5, 20 so that at least one of the zones is in communication with one passageway and the remaining zones are in communication with the other passageway. The burner may comprise two body members 1, 2, each defining with a separation boundary plate 3 a supply passageway, and including a ledge 8, 15 positioned to support a burner supply port and recess which with corresponding recesses on the other member define the supply zones. Each fuel supply passageway includes a fuel inlet 6, 27 which includes a Venturi which may be formed by a shaped portion of a body member and the separation boundary or may be formed by a discrete assembly separable from the body members. The inlets may both be at one end of a rectilinear burner, or one at each end thereof. In a modification, the separation boundary includes a portion shaped to define a fuel supply zone between itself and one body member while a second portion defines a second supply zone between the boundary and the other body member. In a further modification, the burner is formed from a single metal casting and includes baffles to deflect fuel entering the zone from the supply passageway. The burner may be fitted with burner port assemblies as described in Specification 1,282,864 and crosslighting nozzles as described in Specification 1,282,865.
Patent GB-342476-A (GB)
Title: Improvements in loud speaking telephones
IPC: H04R9/04
Filed: 1929-12-24
Abstract: 342,476. Loud-speakers. LISSEN, Ltd. and RICHARDSON, R. P., Worple Road, Isleworth, Middlesex. Dec. 24, 1929, No. 39465. [Class 40 (iv).] A supporting and centring device for the moving coil of a loudspeaker comprises a narrow flat strip 4 of resilient material and zig-zag shape secured by a screw 5 to the centre pole 3 of the magnet and having its ends passed into slots in the former 1. The latter may consist either of a short cylinder of synthetic resin or like material connected directly to a conical diaphragm, or it may be moulded to the shape shown, that is, with a cylindrical portion united to two conical, portions 6, 7, the conical diaphragm bedding into the inner cone 7.
Patent GB-836726-A (GB)
Title: Process for the manufacture of gramicidin s
IPC: C07K7/66
Filed: 1957-12-19
Abstract: In a process for the manufacture of gramicidin S a salt of an L-valyl-L-ornithyl-L-leucyl-D-phenylalanyl-L-proline ester in which the d -amino group of the ornithine radical is protected by the introduction of a substituent on the N-atom of the d -amino group, and which contains in the residue of the hydroxy compound from which the ester is derived an electron-attracting substituent, that is to say, a substituent which is meta-directing in aromatic rings or a halogen atom, is treated with a basic agent and the protected d -amino groups are then converted into the free amino groups. Protecting groups mentioned are those which are capable of being split off without opening the ring, e.g. the tosyl, trityl, carbobenzyloxy and trifluoracetyl radicals.  Electron-attracting substituents mentioned are cyano, nitro, sulpho or methanesulphonyl groups and examples of hydroxy components specified are cyanomethyl alcohol, p-nitrophenol and p-methane sulphonyl-phenyl.  Suitable salts for use in the process are those of hydrohalic acids, e.g. hydrochloric acid or halogenated fatty acids, e.g. trifluoracetic acid.  Alkaline agents mentioned include alkali metal hydroxides or carbonates and organic bases such as tertiary amines.  Organic solvents may be employed such as dimethyl-formamide, acetonitrile, dioxane or tetrahydrofurane and mixtures thereof.  Water may also be present and an acid catalyst, e.g. acetic or sulphuric acid may be employed.  In an example L-valyl-Nd  - tosyl - L - ornithyl - L - leucyl - D - phenylalanyl-L-proline nitrophenyl ester trifluoroacetate dissolved in dimethyl-formamide and glacial acetic acid are dropped into pyridine, the solvent is evaporated and the mixture dissolved in methanol, isopropanol and water and the solution filtered through columns of basic and acidic ion-exchangers.  The residue is crystallized from methanol and water to obtain the dihydrate of di-d -tosyl-gramicidin S which is chromatographed on aluminium oxide, eluted with chloroform and ethyl acetate and recrystallized from methanol and water.  The dihydrochloride of gramicidin S is obtained by treating the di-tosyl derivative in liquid ammonia with sodium and subsequently ammonium chloride.  L - valyl - Nd  - tosyl - L - ornithyl - L - leucyl - D - phenylalanyl - L - proline para - nitrophenyl ester trifluoroacetate is obtained by reacting N - trityl - L - valyl - (Nd  - tosyl) - L - ornithyl - L - leucyl - D - phenylalanyl - L - proline with di-(para-nitrophenyl)-sulphite in pyridine, isolating the nitrophenyl ester and reacting it with trifluoracetic acid.  Salts of peptide carboxylic acid esters which contain an electron attracting substituent in the alcohol component can be prepared by reacting the N-triphenylmethyl-pentapeptide with a hydrohalic acid ester of the corresponding alcohol in the presence of a tertiary organic base followed by splitting off the triphenyl methyl radical by treatment with a dilute acid or by catalytic hydrogenation of a corresponding ester of the N-carbobenzoyloxy-penta-peptide.
Patent GB-1163625-A (GB)
Title: An Electrical Connector.
IPC: H01R31/00
Filed: 1967-08-30
Abstract: 1,163,625. Electric couplings. COMPAGNIE GENERALE D'ENTREPRISES ELECTRIQUES. 30 Aug., 1967 [5 Sept., 1966], No. 39693/67. Heading H2E. A connector comprises a unitary insulating body 1 and a metal contact 4, which is held with its extension probe 5 out of the body by a spring 7. The spring is retained by a stop 9 which is held in position by the resilient projection 10 in the body. A socket 8 is provided in the contact 4 to receive a plug. Ribs 3 are provided on the outside of the wide part of the body to make it easy to hold, and other deformable ribs 2 are provided on the narrow part, from which the probe extends, to hold the body in position in an aperture, e.g. in a terminal block, Figs. 1 and 2 (not shown), so that a screwclamp terminal therein may be resiliently contacted by the probe 5.
Patent GB-844314-A (GB)
Title: Process for the preparation of pickled eggs
IPC: A23L15/00
Filed: 1957-12-20
Abstract: In preserving and colouring eggs, eggs which have been cooked hard in boiling water or steam are immersed in vinegar containing vegetable colouring matter, e.g. the colouring matter of red cabbage, beetroot, red currants or walnuts.  The vinegar may previously have been boiled with pickling spice.  Eggs which have been so immersed for 2-3 days may be wrapped and frozen.
Patent GB-992444-A (GB)
Title: A drive mechanism including a motor having an axially movable rotor
Inventor: MULLER ALOIS
IPC: H02K7/12
Filed: 1963-10-09
Abstract: 992,444. Adjustable cores. OPAL MANUFACTURING CO. Ltd. Oct. 9, 1963, No. 39744/63. Heading H2A. The engagement of a load by axial movement of the rotor of an induction motor is ensured, even under conditions of reduced voltage, by the provision of a spring which aids the movement of the rotor. When the motor is energized, rotor 13 moves axially to engage pin 16 with elongated teeth 17a on pinion 17 and this drives shaft 21 through gearing 18. When the motor is switched off rotor 16 falls to disengage the drive and compress spring 23 which reduces the upward force necessary for engagement. If the rotor is horizontally mounted an additional spring 24 is required to move rotor 13 out of engagement with gear 17 when the motor is switched off.
Patent GB-892279-A (GB)
Title: Improvements in, or relating to push buttons for operating electric switches
IPC: H01H13/06
Filed: 1958-12-10
Abstract: 892,279. Press-button retractive switches. CRABTREE & CO. Ltd., J. A., and MIDDLETON, E. Oct. 13, 1959 [Dec. 10, 1958], No. 39781/58. Drawings to Specification. Class 38 (5).  The operating plunger of a press-button switch is rendered waterproof by a thimbleshaped flexible cover which is moulded to a shape which corresponds to that assumed by it in an intermediate position between the " on " and " off " positions. This ensures that the cover is never flexed more than an amount corresponding to half the travel of the button. In one embodiment (Fig. 5, not shown), a spring-loaded plunger fitted with the flexible cover is separate from the switch operating member.
Patent GB-1280543-A (GB)
Title: Intumescent paints
Inventor: BALLARD NORMAN EDMUND
IPC: C09D5/18
Filed: 1969-08-12
Abstract: 1280543 Intumescent coating ROLLSROYCE Ltd and INTERNATIONAL PAINT CO Ltd 12 Aug 1969 40242/69 Heading B2E [Also in Division C3] Surfaces of wood, glass, ceramics and in particular plastics and metal used in jet engines are coated with an intumescent paint comprising: (I) a non-aqueous solvent, (II) an epoxy resin ester, (III) a curing agent for II, (IV) a blowing agent, (V) a polyammonium phosphate carbonising initiator, (VI) a readily carbonisable material and (VIII) an inorganic pigment filler stable up to at least 130‹C. I may be xylene optionally containing a minor amount of n-butanol. II may be prepared by esterifying an epoxy resin with dehydrated castor oil. III may be a melamine-formaldehyde resin and IV dicyandiamide. Suitable V are disclosed in Specification 1074243. VI may be pentaerythritol and/or melamine. Examples of VIII are titanium dioxide, zinc oxide, carbon black, iron oxide, lead chromate or chromium dioxide. The coatings remain solid at 130‹C and intuanesce at about 300‹C.
Patent GB-1065002-A (GB)
Title: Improved furnace roofs
Inventor: MANN ALFRED JOHN
IPC: F27D1/18
Filed: 1962-10-24
Abstract: 1,065,002. Furnace roofs. M. H. DETRICK CO. Oct. 23, 1983 [Oct. 24, 1962], No. 40334/62. Heading F4B. A circular furnace roof comprises a water-cooled outer circular ring 40 connected to an inner frame by radial I-beams 41 at 60 degrees angular intervals, and pipes 45 supported by the I-beams and defining a plurality of concentric hexagons the joins between adjacent sides of said hexagons being located at the I-beams 41. Refractory bricks are suspended from the pipes 45 and include a radial row of hexagonal bricks beneath each I- beam 41, the intervals between said radial rows being filled in with rows of rectangular or trapezoidal bricks. Six additional I-beams 41 are arranged between the 60 degrees spaced members 41. The inner frame comprises an inner ring 42 and beams 44 which may be electrically insulated from the inner ring. Each hexagonal brick, Fig. 2 (not shown), comprises a cluster of four trapezoidal bricks and is formed with a recess for engaging a hanger, Fig. 3 (not shown). The relative dimensions of the bricks utilized in the roof construction are given. Two sizes of rectangular bricks are used together with the trapezoidal and hexagonal bricks to form dodecagonal and rectangular openings such as 60 and 72 respectively. Electrodes (not shown) passing into the furnace through the dodecagonal openings are surrounded by suitably shaped water boxes to make a satisfactory seal. Steel sections 48, located between the upper face of the bricks and the underside of the supporting structure, prevent movement of the bricks when the furnace is tipped &c. In a modification, Figs. 5 and 6 (not shown), two additional brick shapes, each having one arcuate face, are utilized to form circular openings.
Patent GB-928179-A (GB)
Title: Method of washing effluent gases from chlorination of acetic acid
IPC: C07C51/48
Filed: 1960-11-25
Abstract: <PICT:0928179/III/1> Gas, which contains HCl and which may contain acetic acid, acetyl chloride and acetic anhydride originating from the chlorination of acetic acid (e.g. by Cl2 at 100 DEG -150 DEG C.) in 1 is passed through 2 countercurrently to a flow of acetic acid in sections 8b and 8a of an absorption column 3 which may be packed or contain plates.  The gas is cooled in the lower section 8b by withdrawing part of the acetic acid, which is introduced at 4, through 10 and pumped by 11 through a cooler 12 higher up the column 8b.  Part of the gas which has been treated by acetic acid but which still contains HCl is withdrawn through 7, the remainder of the gas is passed to 5 countercurrently to a flow of acetic acid in 6 which is simultaneously cooled, e.g. by a liquid film cooler, the quantity of gas remaining is controlled to give a substantially saturated solution of HCl in acetic acid which may be withdrawn at either 9, an outlet leading to the reaction vessel 1, or at 10 as above. Alternatively the cooling and saturation of the acetic acid may be carried out in a liquid film cooler separate from sections 8a and 8b of column 3.  The chlorination of the acetic acid, usually to form mono-chloracetic acid, may be performed in the presence of acetic anhydride or acetyl chloride as promoters, or S, P or I as catalysts.
Patent GB-1003285-A (GB)
Title: Improvements in rotary-piston internal combustion engines
IPC: F02B53/00
Filed: 1961-11-14
Abstract: 1,003,285. Rotary I.C. engines. REGIE NATIONALE DES USINES RENAULT. Nov. 14, 1961 [Nov. 21, 1960; Dec. 27, 1960], No. 40737/61. Heading F1F. [Also in Division B3] In a rotary-piston internal combustion engine wherein the stator is constituted by a peripheral ring 1 surrounding the rotor 3, and two end plates, the combustion chambers 2 are formed in the stator ring 1 and are given a shape in the form of a wedge. The chambers may be formed by broaching as shown in Fig. 12, the broach having a circular or straight sided section, or by milling as shown in Figs. 11, 13 and 14. Poppet valves may be located in the chambers, which may alternatively each be formed as two intersecting truncated cones, each coaxial with a valve (Fig. 16). A spark plug may be located in the stator ring or in the adjacent end cover.
Patent GB-1223447-A (GB)
Title: Process for the separation of bands of lace or warp knit fabric
Inventor: ORCHARD MICHAEL
IPC: D06H7/22
Filed: 1968-08-27
Abstract: 1,223,447. Removing auxiliary threads from lace or warp knitted fabric. M. ORCHARD. 21 Aug., 1969 [27 Aug., 1968], No. 40808/68. Headings D1K and D1S Lace or warp knit thermoplastic fabric formed of bands joined by electrically conducting draw threads, e.g. metallic wire, are separated by passing an electric current through the draw threads until they are heated sufficiently to melt the thermoplastic material at the edges of the bands. The fabric may be passed between two pairs of rollers one roller of each pair having an electrically conducting peripheral surface and being connected respectively to the two terminals of an electric power supply. The wires may be recovered for reuse.