baber/WOPTO huggingface dataset:
Patent GB-1398580-A (GB)
Title: Process for preparing biphenyl compounds
IPC: C09B43/00
Filed: 1972-10-12
Abstract: 1398580 Preparation of disazo dyes DAIN. ICHISEIKA COLOR & CHEMICALS MFG CO Ltd 12 Oct 1972 [17 April 1972] (3)] 47045/72 Heading C4P [Also in Division C2] Disazo dyes of formula wherein Y is A represets the atoms necessary to complete a benzene, naphthalene, anthracene, dibenzofuran, carbazole or benzocarbazole ring which may be substituted, R 1 , R 4  and R 5  are aryl groups which may be substituted, R 2  and R 3  are H or halogen atoms or nitro, alkyl, alkoxy, carboxyl, carboxamide, sulphone or sulphonamide groups and R 6  is a CH 3 , COOH or alkoxycarbonyl group are prepared by diazotizing an amine of formula and decomposing the diazonium compound in the presence of a reducing agent. Specified reducing agents are salts, oxides and sulphides of the metals Cu, Al, Ti, Cr, Fe, Co, Ni and Sn having a valency in the compound lower than its maximum valency or an alkali metal salt of a reducing inorganic acid containing S or P.
Patent GB-1499659-A (GB)
Title: Band-saw swaging tool
IPC: B23D63/06
Filed: 1975-05-13
Abstract: 1499659 Swaging sawteeth ORTON SAWS Ltd 13 May 1975 [31 Oct 1974] 47191/74 Heading B5L A bandsaw swaging tool comprises a block 12 having a slot 36 for receiving a bandsaw tooth, an anvil (not shown) mounted in the block for engaging over the tip of the tooth, a die bar 2 extending transversely of the slot for engaging the tooth beneath the tip and mounted for rotation about its axis to swage a tooth between the anvil and a surface 42 on the bar, a mechanism for clamping the block in fixed position relative to the saw and including first and second clamp slugs 4, 6 in a plain bore 53 extending transversely of the slot from one side of the block and terminating before the opposite side of the block, the first slug 4 seating against the end of the bore and the second slug being engageable by an actuator 52 so as to be urged towards the first slug to clamp the blade. The block 12 is cylindrical and formed with the slot 36 in which is located the anvil (not shown) for engaging the tip of a tooth of the saw, the anvil being adjustable in a bore in the plane of the slot by a screw and clamped by a screw extending transversely of the slot. A guide member is aligned with the slot and rides on the saw teeth to align the tool with the saw blade. The die bar 2 is of high speed steel and formed with driving flats 41 and a swaging surface 42, the bar being supported for rotation in the block by a bearing 7 and a die holding member 18 mounted in needle bearings 1 in the block, a key 15 retaining the member 18 in the block. The die bar is clamped to the member 18 by a conical wedge 22 urged into a complementary recess in the member by a screw 19 and engaging the flat 41. The first slug 4 is retained in the bore 53 by a clamping screw (not shown) and the second slug 6 is axially slidable in the bore to clamp the tool to the blade of the saw by rotation of a screw 52 secured to a handle 20b, the screw engaging threads 54 of a body 48 mounted by screws 21 on the block 12. Handles 20a, 20b are secured to the die holding member 18 and screw 52, respectively. A headed member 50 passes through the screw and is a push fit in the slug 6 to ensure withdrawal thereof when the screw is withdrawn to release the saw blade. A grease nipple closes the end of the screw for supply of grease along the bore in the screw for lubricating the threads thereof. In operation, the tool is clamped on the saw blade by operation of the handle 20b so that the slugs 4, 6 clamp the blade therebetween with the anvil engaging the top of a tooth and the die bar 2 beneath the tooth, and the handle 20a is actuated to rotate the die bar to swage the tooth between the anvil and swaging surface 42. Alternatively, the clamping screw may be replaced by an hydraulic cylinder and the handle 20a operating the die bar replaced by a pneumatic cylinder.
Patent GB-1532405-A (GB)
Title: Television systems
IPC: H04N17/00
Filed: 1974-11-01
Abstract: 1532405 Television INDEPENDENT BROADCASTING AUTHORITY 30 Oct 1975 [1 Nov 1974] 47330/74 Heading H4F A test line signal, Fig. 2, inserted during field blanking periods (e.g. during odd fields in line 19) of a television signal is sampled at different positions thereon during successive occurrences thereof to provide digital amplitude signals representing the instantaneous amplitudes of the test line under the control of a programmed computer and in response to horizontal sync pulses in the television signal. From these digital amplitude signals a parameter (e.g. linearity) is calculated by the computer which signifies the quality of the television signal. As shown the test line includes a staircase with each step having a duration of 4Ás and carrying a colour subcarrier burst. For a PAL signal each step is sampled during its middle third at eight equally spaced sampling positions with four samples being taken at each position. These four samples are taken during four successive occurrences (i.e. in four successive frames) of the test line and thus during 32 frame periods one step is sampled and during the next 32 frame periods the next step is sampled &c. The sampling positions are separated by intervals slightly less than the subcarrier period. From the four amplitude values for each sampling position a luminance and two colour component values are calculated and stored on punched paper tape and used by a technician for making adjustments to the equipment. Reference is also made to sampling the 2T (i.e. 2ns pulse) of the test line signal, and to sampling the test line signal at the black level after the burst 30 and at two spaced apart positions on the white bar 31. Instead of sampling the test line with pulses derived in response to the horizontal sync pulses the leading edge of the white bar in the test line may be used. A plurality of samples may be taken during a single occurrence of a test line provided that the average rate of sampling is kept low.
Patent GB-1515979-A (GB)
Title: Method of operating a tissue paper machine and such a machine for carrying out the method
IPC: D21F5/02
Filed: 1976-11-15
Abstract: 1515979 Making tissue paper VALMET OY 15 Nov 1976 [18 Nov 1975] 47502/76 Heading D2A A machine suitable for the manufacture of either dry-creped or wet-creped tissue paper comprises after its press section a dryer (e.g. a Yankee cylinder 10), an after-dryer (e.g. a multiple-cylinder dryer 21, 22) and a reeling apparatus 30. When the machine is used to produce dry-creped paper, web W is conducted from the dryer. 10 directly to the reeling apparatus 30 in the path W 2  and by-passing the after-dryer. Rolls 13, 14 may be displaceable and the web can be made to pass through the after-dryer following the path W 1 . The reeling apparatus 30 may be placed above or, as shown, below the afterdryer. In another embodiment (Fig. 2, not shown) the after-dryer comprises a largediameter flow-through drying cylinder.
Patent GB-1448983-A (GB)
Title: Flexible skirt members for gas-cushion supported apparatus and devices
IPC: B60V1/16
Filed: 1972-10-14
Abstract: 1448983 Air cushion vehicles AIR CUSHION EQUIPMENT Ltd 12 Oct 1972 [14 Oct 1972] 47515/72 Heading B7K A U-section finger forming part of the flexible skirt of an air cushion vehicle has its outermost portion (as assembled on a vehicle) formed with a folded tuck 10 so as to give the outermost wall 5 an angled profile as seen in side elevation thereby increasing the effective lift area of the cushion. In the embodiment shown in the Figures six fingers are folded from a single shaped sheet of material (Fig. 1, not shown) and adjoining folds are stitched to form a pocket into which a rod 24 is inserted to form a bead in the form of a sail bolt rope. This is inserted into a longitudinally slotted tube 30 to provide the main support for each finger. A tongue created by the fold 10 is trapped between a steel strip 32 and a neoprene foam strip 33 secured at 34 to the vehicle platform 8. A folding arrangement for a single finger is described (Fig. 4, not shown) and in an alternative arrangement the outer, upper portion of wall 5 is angled inwardly and upwardly instead of vertically as shown in Fig. 3 thereby increasing further the area of the cushion.
Patent GB-999225-A (GB)
Title: Process for the reductive splitting of an oxido ring in keto-steroids and compounds obtained thereby
IPC: C07J75/00
Filed: 1963-12-03
Abstract: The invention comprises androstanes of the formula <FORM:0999225/C2/1> wherein R represents a hydrogen atom or an acyl radical, R1 represents a hydrogen atom or an alkyl or cycloalkyl radical of up to 6 carbon atoms or an acyl radical, R2 represents a hydrogen atom or a hydroxyl radical, R3 represents a hydrogen or fluorine atom and R4 represents a hydrogen atom or an alkyl, alkenyl, or alkynyl radical of up to 3 carbon atoms, and a process for the preparation of 1a -hydroxy-3-keto-androstanes by the reductive splitting of the oxido ring in 1a ,2a -oxido-3-keto-androstenes by an alkali or alkaline-earth metal in liquid ammonia or in a primary or secondary amine.  The process may be carried out in the presence of alcohols or other inert solvents, suitably between - 100 DEG  and 100 DEG  C.  Compounds containing free hydroxy groups may be esterified or etherified.  1a ,2a  - Oxido - 3 - keto - androstanes may be prepared from the corresponding D 1-steroids by treatment with a per-acid.  Therapeutic compositions with anabolic, androgenic and antioestrogenic properties, which may take the form of tablets, dragees, ointments, creams, solutions; suspensions and emulsions for enteral, topical and parenteral application; comprise androstanes of the formula I and suitable carriers.
Patent GB-1485449-A (GB)
Title: Method and apparatus for examining surface characteristics employing a scanning electron beam
IPC: G01N23/225
Filed: 1974-11-05
Abstract: 1485449 Measuring contours CALSPAN CORP 5 Nov 1974 [9 Nov 1973] 47837/74 Headings G1A and G1N [ Also in Division H1] In an apparatus which investigates the contour of a surface, the surface 18 is placed in an evacuated housing 10, Fig. 1, and scanned with an electron beam 16; a detector views part of the scanned surface, the other surface portions being obscured by a plate 28 or a positive field. In Fig. 3 the electron beam scans from left to right, causing the emission of electrons from surface 18; these latter electrons are received by detector D until the scanning beam reaches point P when receipt of electrons at D is blocked by plate 28. The distance X of point P below the plane defined by the plate is S tan # where S and # are as shown in Fig. 3. The angle # is a constant determined by the positions of D and plate 28, while S can be found by determining the deflection of the scanning beam at the instant D ceases to receive electrons. In Fig. 1 the deflection and the detector signal are fed to device 34 where the value of x is calcuated and displayed or recorded. The beam is stepped across the surface in direction B, and the surface is moved in direction A, which is also the scanning direction, by motor 22 so as to measure the profile of all parts of the surface. In a preferred arrangement of Fig. 3 the detector views the surface normally, that is # = 90 degrees, while the scanning beam is at an acute angle, Fig. 4 (not shown).
Patent GB-1175355-A (GB)
Title: Improvements in or relating to the Surface Treatment of Titanium and like Metals.
Inventor: COTTON JOSEPH BERNARD
IPC: G04D3/00
Filed: 1966-10-25
Abstract: 1,175,355. Heat-treating refractory metals; titanium alloys; anodizing; cleaning. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. Oct.20, 1967 [Oct. 25, 1966] , No. 47856/66. Addition to C7B, C7E and C7N. Heading C7A. A refractory metal which forms a protective oxide layer in air, namely Ti, Zr, Hf, V, Nb, Ta, Mo, W or alloy containing at least 50% thereof, is heated in vacuo or an inert atmosphere e. g. of A or He at a temperature and for a time to cause grain enlargement to a size visible as a facetted surface effect without magnification and subsequently anodized to impose a coloured anodized finish on the facetted surface. The vacuum or inert atmosphere preferably contains sufficient oxygen to allow an oxide film to form. For treating Ti or alloy, e.g. Ti-4% A1-4% Mn, the heating is at between 900 and 1200‹ C. for at least 5 minutes, e.g. at 1150‹ C. for ¢ hour under a vacuum of 10<SP>-5</SP>mm Hg, to obtain grains 0À1-2mm in size; brown to blue colouring may be obtained by anodizing at up to 150 volts in 1 ÀOM aqueous KF, or an electrolyte consisting by volume of 80% H 3 PO 4 , 10% H 2 SO 4  and 10% water, or 5% ammonium sulphate in water. The refractory metal may be mechanically buffed and/or chemically or electro-chemically polished, e.g. by immersion in a hot solution consisting by volume of 40% HNO 3  (S G.1À42), 30% H 2 SO 4  (S. G. 1À84) and 30% HF (40%), before heat-treatment and preferably again before anodizing.
Patent GB-1391531-A (GB)
Title: Video signal recording and reproducing apparatus
IPC: G11B15/467
Filed: 1972-10-19
Abstract: 1391531 Automatic control of speed SONY CORP 19 Oct 1972 [29 Oct 1971] 48258/72 Heading G3R The speed of the magnetic tape in a video recorder is controlled to keep a reference and a reproduced waveform in a particular phase relationship with each other thus maintaining the tracking accuracy of the rotating magnetic head. The incoming reference signal So on terminal 1 consists of a square wave whose polarity alters for each frame and this signal is applied to a first trigger circuit 2 and to monostable circuit 15. The incoming reproduced signal Sc from magnetic head 3 consists of alternate positive and negative pulses defining the start of each frame and these are supplied to trigger circuit 4 and monostable circuit 16. These monostable circuits 15, 16 both respond to negative going signals to produce pulse outputs which, if the signals So, Sc are approximately in phase produces an enabling signal S 3  from AND gate 17 to hold transistor 19 non-conductive. Trigger circuit 2 produces pulses S 4  for the start of each frame and these are used to trigger a waveform generator circuit So to produce a ramp signal S 6 . Trigger circuit 4 also produces pulses S 5  which are used in monostable circuits 52, 53 to produce a sampling signal comprising short pulses S 8  which are used to gate the ramp signal to give an output signal S 9 . The amplitude of this signal S 9  is used to control a variable frequency oscillator 55 whose output controls A.C. motor 57 which drives the capstan of the recorder. If the speed is outside the controllable range defined by the length of the ramp signal the oscillator output frequency is high and no control is possible because the AND gate 17 is not enabled and transistor 19 conducts to cause the arriving pulses So, Sc to trigger the circuits 2 and 4 independently so the pulses S 3  and S 4  alternate.
Patent GB-1105006-A (GB)
Title: Device for the automatic cutting-open and emptying of packages
Inventor: GRUN GUSTAV
IPC: B65B69/00
Filed: 1966-10-27
Abstract: 1,105,006. Unpackaging; endless conveyers. GEB. GRUN K.G. (FIRMA). 27 Oct., 1966 No. 48310/66. Headings B8A and B8C. An apparatus for slitting filled bags and discharging the contents comprises a conveyer which feeds the bags over a rotating knife to slit one side from top to bottom, pressure being applied from above to open the slit and beaters or vibrators assisting the discharge. The bags are engaged at opposite sides by spikes 2 on spaced conveyer chains 1 and drawn along rails 7 over the knife 8. A rail 12 bends the bag to open the slit and beaters 16 ensure release of the contents. Finally, wheels 19 projecting above the spikes remove the empty bags for discharge down a shoot 21. The material is received in a hopper 20. The knife and rails may be adjustable for various bag sizes.
Patent GB-1213250-A (GB)
Title: Rectifier roll support
IPC: D21F1/02
Filed: 1969-10-02
Abstract: 1,213,250. Rollers. BELOIT CORP. 2 Oct., 1969 [6 Nov., 1968], No. 48479/69. Heading F2U. The hub 80 of a rectifier roll 23 is connected to a drive shaft 40 by a compound yielding coupling, the first element of which comprises a radial pin 47 engaging a longitudinal slot 48 in shaft 40 to provide a yielding connection except in the rotational direction, the second element comprising a bush 35 with a central sharp ridge 69 and secured to the end of shaft 40 and to hub 80 by resilient rings 36, 36a. A grease cap 31 is secured to hub 80 and longitudinal grooves (70, 74) are formed in the outer peripheral surfaces of bush 35 and rings 36, 36a for the passage of lubricant, Figs. 3 and 4 (not shown).
Patent GB-1037669-A (GB)
Title: Method of producing plates, particularly for offset printing, apparatus for carryingout this process, and plates obtained in this manner
IPC: H04N1/207
Filed: 1963-12-11
Abstract: <PICT:1037669/C6-C7/1> An apparatus for producing printing plates in accordance with an original, involving point-by-point photo-electric analysis of the original by scanning, is characterized by the use of a stream of powder which is scanned over a base plate in synchronism with the analysis of the original and is controlled in respect of flow in accordance with the photo-electric signal, the deposited powder being fixed to the plate so as to build up a printing surface in accordance with the original. The base plate is metal, preferably stainless steel or a chromium-plated metal, whilst the powder may be a metal (copper and nickel are referred to) a metal alloy, a mixture of a metal and thermoplastic resins or an organic material. The stream of powder is produced by the arrangement shown in Fig. 5, where powder from a hopper 27 is given an electric charge and then propelled by grids 27, 28, 29, 30 which are held at suitable potentials, through a storage chamber 36 to a pulsating chamber 31. An electrode in chamber 31 is controlled by electric impulses so as to cause the ejection of the powder in pulses through further electrode chambers 32, 33, 34 from which the powder is eventually propelled via outlet aperture 35. An electrode at the end of the assembly is controlled by the photo-electric signal to regulate the quantity of powder which flows in accordance with the details of the original. The projected powder passes to the base plate 14 between a pair of deflection plates 38 supplied with signals, whereby the powder stream is deflected so as to scan a line on the plate, and also through a furnace 43 heated by resistance coil 44, whereby the powder is fused so that it welds to the plate. The frequency of the impulses applied to chamber 31 is controlled by the photo-electric signal so as to cause the plate to be formed without a regular pattern due to the pulses of powder.
Patent GB-1147070-A (GB)
Title: Coated capsules, particularly for use in photographic processes
Inventor: MCCUNE WILLIAM JAMES
IPC: G03C1/00
Filed: 1966-08-01
Abstract: 1,147,070. Micro-capsules. INTERNATIONAL POLAROID CORP. 1 Aug., 1966 No. 48908/68. Divided out of 1,146,748. Heading B8C. [Also in Division G2] Film developing processes, preferably singlestep colour processes, employ micro-capsules having polymeric shells coated with optically sensitized silver halide for developing purposes, the capsules containing a colour providing substance, e.g. a dye developer. The capsules may also be used in black and white processing. In one embodiment comprising a photosensitive element 150 and a print receiving element 156, a film strip is formed by coating a support 152 with a capsule layer 154, the capsules containing a colour providing substance. Superposed on the strip is the print receiving strip 156 having a developing sachet 162 attached to it. The element 156 includes a dyeable material and comprises an image receiving layer 158 and support 160. The developer sachet is burst by rollers &c., to spread a film of liquid between the strips in known manner, the capsules also breaking under pressure. Fig. 2 shows a multi-colour film unit. A screen, Fig. 10 (not shown), having a surface formed of capsules containing different colour providing substances for subtractive colour arranged in strips may be formed, for developing in the usual manner. In applying the silver halide coating, the salt may be deposited from solution or coated on with a binder such as gelatine. Silver may be deposited on the capsules as described above and the silver subjected to halogen vapours. The silver halide is then sensitized by vacuum deposition techniques &c.
Patent GB-1158013-A (GB)
Title: Perfluoropropylene Epoxide Derivatives
IPC: C07C51/09
Filed: 1966-07-05
Abstract: 1,158,013. Fluorinated α-imino-amides. MONTECATINI EDISON S.p.A. 5 July, 1966 [19 July, 1965], No. 48950/68. Divided out of 1,158,012. Heading C2C. The invention comprises compounds of the general formula wherein R is a linear or branched aliphatic or cycloaliphatic radical containing 1-12 carbon atoms and optionally substituted by F or Cl, or is an ortho-substituted phenyl radical containing 6-10 carbon atoms. The compounds are prepared by reacting hexafluoropropylene epoxide with an amine of the formula R-NH 2  at a temperature between- 80 C. and + 250 C. and at a pressure between 0À1 and 100 atmospheres absolute.
Patent GB-1359875-A (GB)
Title: Contact nozzles for welding machines
IPC: B23K9/12
Filed: 1971-10-22
Abstract: 1359875 Sintered welding contact nozzles HD KLEES 22 Oct 1971 49237/71 Heading C7D [Also in Division B3] A welding machine contact nozzle with an elongated central bore is made by compacting a metal powder 3 in a die 1 with a long core pin 6 attached to bottom punch 5 and extending into the bore 7 of upper punch 4. The core pin is long enough to extend into the bore 7 before the punch enters the die cavity and before the metal powder is charged into the cavity. The small diameter core pin e.g. 0À8-5 mm. is thus supported throughout the pressing operation. The compacted nozzle may be sintered in the die or after removal from the die. The metal powder is preferably a dispersion hardened Cu alloy. The nozzle of Fig.2 is compacted to the finished shape except for the screw thread 14.
Patent GB-1357464-A (GB)
Title: Plastics ring spinning sleeve
IPC: B65H75/10
Filed: 1972-10-25
Abstract: 1357464 Plastics yarn tubes W HAMBURGER 25 Oct 1972 [25 Oct 1971] 49239/72 Heading B8M  A plastics yarn tube, particularly for use in ring spinning, comprises a frusto-conical body having a wall composed of longitudinal ridges 1 and annular ribs 2 extending transverse to the ridges, and is characterized in that at least in the region 3 of the base, that flank of each rib 2 which faces the base is inclined at a flank angle α of less than 45 degrees to the tube axis at a point of contact P, centrally between two ridges, with a tangent to two adjacent ridges and the rib, which tangent extends at right-angles to the tube axis. The angle # shown in Fig. 2 is preferably less than 30 degrees, most preferably less than 20 degrees. The ribs 2 have a symmetrical cross-section which may include a flat top and a portion substantially radial at the position nearest the axis. The longitudinal extent of each rib is preferably greater than the spacing between the ribs. The yarn tube is preferably provided with apertures 6 for use in fluid treatments of yarn wound on the tube. The configuration of the ribs 2 at the base of the tube enable remnants of yarn to be easily stripped from the tube while not allowing slipping of windings during unwinding. The preferred configuration of ribs 2 may be provided throughout the length of the tube or only at the base or at the base and the apex. In a preferred embodiment, the ridges at the base of the tube project radially beyond the ribs, the extent of projection gradually being reduced towards the apex of the tube.