baber/WOPTO huggingface dataset:
Patent GB-1159683-A (GB)
Title: Dyeing of Synthetic Polyamides.
Inventor: BENNETT GEORGE ARTHUR
IPC: C09B62/80
Filed: 1965-11-29
Abstract: 1,159,683. Anthraquinone dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 Nov., 1966 [29 Nov., 1965], No. 50538/65. Heading C4P. [Also in Division D1] Half sulphuric esters or salts of half sulphuric esters of anthraquinone dyes of Formula I in which R is cycloalkyl, alkyloycloalkyi or an aryl group which may be optionally substituted by one or more alkyl groups and A is a saturated hydrocarbon group are prepared by treating the compound above with concentrated sulphuric acid or oleum and then with oxide or hydroxide or a salt of a weak acid of the metal or with ammonia, an amine or quaternary ammonium hydroxide.
Patent GB-1345065-A (GB)
IPC: G03B15/04
Filed: 1971-11-03
Abstract: 1345065 Photographic apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Nov 1971 [6 Nov 1970] 51112/71 Heading G2A A photographic camera includes a connection device for a flash bulb unit, the device comprising two electrical contact members, one formed by the poles 2, 3 of a magnetic system in the camera, the poles emerging in the camera upper surface 4, and the device also comprising two positioning apertures 5, 6. The second electrical contact 7 is resilient. The base plate 9 of the flash bulb unit has a ferro-magnetic plate 14 mounted thereon, which plate 14 can just fully cover the poles 2, 3 when the unit is attached to the camera. Conical locating guides 16, 17 will fit into the apertures 5, 6 when the unit is attached, and one of two electrical contacts 18, 19 (depending on the orientation of the unit, which comprises two nesting parallel rows of bulbs and reflectors) will engage the camera contact 7.
Patent GB-1493298-A (GB)
Title: Reconstituted mica acoustic diaphragm
IPC: H04R31/00
Filed: 1975-12-17
Abstract: 1493298 Mica diaphragms OKABE MICA CO Ltd 17 Dec 1975 [17 Dec 1974] 51603/75 Heading H4J A diaphragm (e.g. for a loud-speaker) having a flat or curved (e.g. dome or cone shaped) surface is made of mica sheet composed essentially of scaly mica flakes, size 8 to 400 mesh, having their cleavage planes (001 plane) oriented parallel to the flat or curved surface of the sheet, and an organic polymeric binder bonding the mica flakes together at their cleavage planes. The mica is natural mica, partially dehydrated mica or synthetic mica of composition The diaphragm has a density of 1À3 to 2À3 g/cm.<SP>3</SP> and a Young's modulus of 6Î10<SP>10</SP> dyne/cm<SP>2</SP> to 3 Î 10<SP>12</SP> dyne/cm<SP>2</SP>. Preferably the binder is 5 to 50% by weight based on the total weight of the mica sheet. Suitable binders are phenol-formaldehyde resin, urea formaldehyde resin, polymethyl methacrylate resin, polyacrylate ester resin, epoxy resin, silicone resin, silicone rubber, A.B.S., styrenebutadiene copolymer rubber, an unsatured polyester resin or polyurethane resin. In manufacture, a mass of mica is subjected to the action of a water jet to delaminate the mica into fine scaly flakes and thus to form a dispersion of mica flakes in water. The flakes in the dispersion are sieved and a suspension is collected having flakes of size 8 to 400 mesh. The mica flakes in suspension are deposited on to a screen having a flat or curved surface to form a reconstituted mica paper. This is impregnated with liquid organic polymeric binder and then hot pressed to harden the binder. The resultant diaphragm has a higher Young's modulus, lower moisture absorption and a fundamental resonance frequency higher than that of an equivalent paper diaphragm.
Patent GB-1253395-A (GB)
Title: Pressure sensitive semiconductor device
IPC: H01L29/00
Filed: 1969-10-22
Abstract: 1,253,395. Pressure sensitive transistor. MATSUSHITA ELECTRONICS CORP. 22 Oct., 1969 [28 Oct., 1968 (2)], No. 51720/69. Heading H1K. The electrical connection to the base, emitter or collector region of a transistor forms a Schottky barrier therewith and is associated with means for applying a pressure to be sensed to the barrier. The transistor can be formed by conventional planar techniques involving the diffusion of boron and phosphorus into an oxidecoated wafer, the Schottky contact being provided for example by sputtering molybdenum on to an area of the base or emitter having a surface doping of 3-5 Î 10<SP>16</SP> cm.<SP>-3</SP>.
Patent GB-1136288-A (GB)
Title: Improvements in sectional stands
Inventor: FRY HUGH RAYMOND
IPC: A47B55/02
Filed: 1966-11-18
Abstract: 1,136,288. Screens or partitions. VONO Ltd. 24 Nov., 1967 [18 Nov., 1966], No. 51770/66. Heading A4U. A stand, screen or partition comprises a plurality of rectangular frames connected one above another by spigots 15 on the upper ends of the vertical side members 12 engaging sockets 16 in the lower ends of the vertical side member 12 and connected in side by side relationship by means of metal or nylon discs 17, Fig. 2, having a plurality of holes through which the spigots 15 of adjacent frames pass. The upper and lower ends of the vertical side members 12 engage in blind holes 20, 22 in top and foot connector members 19, 21. The horizontal side members 12 are of channel section and may have clips mounted thereon to enable display panels to be carried within the frame.
Patent GB-1279471-A (GB)
Title: Thermoelectric generators
IPC: G21H1/10
Filed: 1969-10-23
Abstract: 1279471 Thermoelectric devices SIEMENS AG 23 Oct 1969 [24 Oct 1968] 52073/69 Heading H1K A nuclear powered thermoelectric generator is enclosed within a container which acts both as a heat sink and as a radiation shield. As shown, a casing 7 containing a radioactive fuel forms the heat source for an assembly of pairs of thermoelectric elements 8 enclosed in a cup 1 surrounded by a sleeve 2 both of which are secured to a cap 3 by means of screws 4 and 5. The cup 1, sleeve 2 and cap 3 form a radiation tight shield and may be of uranium, lead or steel. Several alternative forms of the thermocouples and their mountings are illustrated in the figure. Each of the P and N type elements 8a are formed of two sections connected in series by silver braids 15. The inner hot sections may be of Ge-Si alloy and the outer cold sections may be of PbTe or Bi 2 Te 3 . The hot ends are connected by Mo-Si alloy bridges 9 which are in direct contact with the casing 7. The cold ends are contacted by silver plates 10 which are secured to mounting pins 13 by means of a layer of insulating material which may be of alumina or beryllia metallized and soldered to the plates 10 and pin 13. Each of the P and N type elements 8b comprises a single section secured to bridges 9a which are spaced from the casing 7 to reduce thermal stress the heat transfer being achieved by radiation across the gap. Pins 13a are provided with threaded studs which are inserted in bores 14 in the cup 1 and secured by nuts 16, pins 13b are additionally provided with tapered sections which fit into corresponding recesses in the cup, and pins 13c are provided with tapered sections and are secured by studs screwed into threaded bores in the cup 1. In all these constructions adjacent thermocouple pairs are connected in series by silver braids 11 secured to the silver plates 10. Pin 13d is conically tapered and fits into a hole in cup 1 in such a manner that the thermocouple assembly may be inserted from the outside and secured by an externally threaded nut 16. Pin 13d also has a bore through which extend terminals 18 connected to the ends of the thermoelements, and adjacent thermocouple pairs are connected in series by silver braids extending between terminals 12 in grooves in the outside face of cup 1. Resilient members may be provided between silver plates 10 and the associated pins 13. The links of the thermoelements are surrounded with thermally insulating material 19.
Patent GB-1268039-A (GB)
Title: Joint for plastics pipe
IPC: F16L19/06
Filed: 1970-11-03
Abstract: 1,268,039. Pipe coupling. MUELLER CO. 3 Nov., 1970 [5 Nov., 1969], No. 52233/70. Heading F2G.  A plastics pipe P is connected to a metal pipe or fitting by a coupling 10 in which a tubular member 12 and a nut 14 are tightened to deform a gasket seal 18 against the plastics pipe wall, forcing the wall into a groove 46 in a sleeve insert 20 attached to the body member 12. The axial length of the. relaxed gasket, which may be of elastomeric material, is greater than that of the groove but at the limit of deformation, when the nut 14 abuts a shoulder 24, a projection of the frusto-conical surfaces 68 intersects the walls 48, 50 of the groove 46. The surfaces 68 preferably subtend an angle of 30 degrees and the groove walls an angle of 45 degrees with a radial plane. The sleeve 20, which may be of stainless or carbon steel, is attached to the body member 12 by welding, soldering, a force fit or by screw-threaded engagement. The surface of the groove 46 is knurled (K) or ribbed (R<SP>1</SP>) (Figs. 5, 6, not shown) and the groove walls 48, 50 join the adjacent surfaces with a smooth radius (R) (Fig. 7, not shown). The groove depth is preferably 1/32 inch when the plastics material of the pipe P is polyethylene, P.V.C., polybutylene &c. Frictional resistance to tightening the coupling is reduced by the application of a dry film lubricant. In another embodiment, a semi-rigid washer (100) (Figs. 3, 4, not shown) of low friction plastics material, L-shape in axial cross-section, is interposed between the gasket and the surface 68 of the nut 14. The washer deforms to further urge the pipe wall into the sleeve groove 46. In a further embodiment the groove 46 is replaced by a pair of narrow grooves cut from the sleeve wall. The nut, which may have either an interior or exterior screw thread (39), (39<SP>111</SP>), (Figs. 14, 15, 16, not shown) urges a metal ring (49) to deform the gasket. The body member 12 may form part of a valve body or stop, or a tank fitting.
Patent GB-1209545-A (GB)
Title: A multicolor sheet-fed offset printing press
Inventor: BULK R A
IPC: B41F33/08
Filed: 1968-11-05
Abstract: 1,209,545. Multi-colour rotary offset presses. HARRIS-INTERTYPE CORP. 5 Nov., 1968 [15 Nov., 1967]. No. 52310/68. Heading B6C. In the machine shown and described in Specification 1,117,973, the control panel 160 and associated means for effecting the printing of progressive proofs is replaced by photo-electric and solenoid mechanism which detects holes in punched tape or holes in punched cards and initiates operation of the printing units accordingly. Counter means are built into the machine in order that predetermined numbers of proofs are printed automatically at any one or plurality of units.
Patent GB-1332138-A (GB)
Title: Transport installation
IPC: B61K1/00
Filed: 1970-11-04
Abstract: 1332138 Loading and unloading ENGINS MATRA SA 4 Nov 1970 [4 Nov 1969 9 Oct 1970] 52516/70 Heading B8E [Also in Divisions B7 E1 and H4]  In a transportation system for goods, see Division B7, the goods 96 are transferred from fork lift truck 97 to a platform roller unit 93 which can be moved outwardly by rollers 95 and lever 94 to a position adjacent vehicle 90 and the rollers of unit 93 and those 92 on the vehicle are driven to move the goods to position 96<SP>11</SP> where they engage stop 100 which shuts off the motors driving the rollers. The reverse process is used for unloading.
Patent GB-1282550-A (GB)
Title: A rotary cutter and strip feeding arrangement
IPC: B31B1/90
Filed: 1970-11-05
Abstract: 1282550 Wrappers incorporating tear strips MASCHINENFABRIK ALFRED SCHMERMUND 5 Nov 1970 [11 Nov 1969] 52672/70 Heading B8C [Also in Division B4] A cellophane wrapper 30 having a tear-strip welded thereto has a pull tab 31 to which a strip 32 of coloured material is adhered. To manufacture the wrapper, a web 1 of wrapping material having the tear strip welded thereto is fed between two rollers 3, 4, the roller 3 carrying a U-shaped cutter 2 in which a rubber pad 112 which projects above the cutter 2 is mounted. On rotation of the roller 3, the rubber pad 112 periodically contacts a thread 6 of the coloured material to press the thread 6 against the web 1 and the cutter 2 severs the strip 32 from the thread 6 and cuts out a tongue in the web 1. The thread 6 is fed from a roll 5 by means of a roller 47 carried by a double armed lever 46, 43 which is oscillated by a cam 40 mounted on the same drive shaft as the roller 3. The thread 6 is prevented from slipping back by a spring urged lever 10 which is raised by a cam 16 to permit the pad 112 to pull the thread 6 between the rollers 3, 4. Alternatively (Figs. 1-3), the thread 6 is pulled from the roll 5 by an intermittently driven roller (8).
Patent GB-1438999-A (GB)
Title: Blast furnace operating methods
IPC: C21B5/00
Filed: 1973-11-16
Abstract: 1438999 Production of iron in a blast furnace NIPPON KOKAN K K and W WENZEL 16 Nov 1973 [25 Nov 1972 8 March 1973] 53178/73 Heading C7D In a blast furnace process for producing molten iron in which ore coke and flux are charged in alternate horizontal layers, molten iron and slag being tapped from the hearth, a portion of the withdrawn gas is regenerated with fossil fuel to enrich it with carbon monoxide and hydrogen and is introduced into the hearth with technically pure oxygen and a second portion provides at least part of the heat for the regeneration and preheating of agents, e.g. oil and oxygen, introduced into the hearth. The blast to the hearth is thus substantially free from nitrogen and the carbon monoxide and hydrogen provide a peak combustion temperature of about 2000‹C, and provide sufficient gases for transfer of heat up the stack. A portion of the regenerated gas may also be introduced into the stack, the blast accounting for 55-63% of the total regenerated gas introduced into the furnace. The regenerated gas may be subjected to a cycloreaction to produce two types of gas, one containing carbon particles which is added to the blast and the other, from the  central region of the cyclone which is introduced into the stack.
Patent GB-1300979-A (GB)
Title: Process for preparing thiobisphenols
IPC: C09K15/14
Filed: 1970-11-11
Abstract: 1300979 Thiobisphenols SAGAMI CHEMICAL RESEARCH CENTER 11 Nov 1970 [12 Nov 1969] 53532/70 Heading C2C 4,4<SP>1</SP>-Mono- and/or poly-thiobis-(2,6-dialkylphenol), having the general formula in which R and R<SP>1</SP> are respectively aliphatic hydrocarbon radicals, x is an integer from 1 to 4 are prepared by reacting a 2, 6-dialkylphenol with sulphur powder by heating in the presence of a basic material, e.g. alkali metal hydroxide or an alkali metal in a solvent, e.g. alkyl such as methanol, ethanol, propanol or glycol or an aprotic solvent such as pyridine, dimethyl formamide or dimethyl acetamide.
Patent GB-1488912-A (GB)
Title: Method and apparatus for encoding an information signal and compressing the transmission bandwidth
IPC: H04N7/30
Filed: 1974-12-11
Abstract: 1488912 Data transmission; facsimile systems RCA CORPORATION 11 Dec 1974 [26 Dec 1973] 53542/74 Heading H4P A method of coding a two-dimensional image comprises generating a first matrix of n Î n signals representing an information signal and from this generating a second matrix derived from the first comprising 2n x 2n signals having even symmetry with respect to X-Y axes, i.e the first matrix forming one of four quadrants each of which is a mirror image with the adjacent quadrant in each direction, and two dimensional transform coding the second matrix to provide a plurality of signals corresponding to the transform coefficients which represent the information signal. A Fourier transform may be used equivalent to a series expansion so that each sub picture is represented as though it was a period of a two dimensional periodic function. An n x n (i.e. 4 Î 4) matrix produces 16 complex coefficients which require 16 numbers to specify, also there may be discontinuities in period functions. Reforming a 4 x 4 matrix into an 8 x 8 matrix, each 4 Î 4 edge section being a mirror image of the adjacent 4 Î 4 along each quadrant defining axis, avoids this as the 8 Î 8 matrix has even symmetry, requires only 16 numbers to specify the sub picture of 64 Fourier coefficients, also avoids discontinuities (see Figs. 5 and 7, not shown). The apparatus comprises scanner 20 of any type, e.g. vidicon tube, laser, facsimile scanner or scanned matrix array, discharging digital signals representing 4 rows alternately into buffers 22, 24 read out also alternately into data expander 26 which converts 4 Î 4 arrays into 8 Î 8 even symmetric matrices. In FFT network 28, an appropriate two dimensional Fourier transform is computed and passed to block 30 which thins and quantizes input signals before transmission by any line or radio medium. At the receiver (Fig. 9, not shown) incoming signals are decoded to reconstruct the Fourier transforms which are then passed to FFT network (44) performing an inverse transform to provide an 8 x 8 matrix to 46 where it is reformed into a 4 x 4 matrix for display. The arrangement provides steadily rising and falling representation of the information which avoids discontinuities hence reducing dissipation of high-frequency energy. Haelamand or Karhunen-LoÚve transforms may be alternatively used.
Patent GB-1170057-A (GB)
Title: Method of Processing Steel Sheet or Strip prior to Surface Treatment
Inventor: BRITTAIN CHARLES PETER
IPC: C21D9/56
Filed: 1966-12-01
Abstract: 1,170,057. Annealing steel sheet; coating with metals. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov.29, 1967 [Dec.1, 1966], No. 53875/66. Headings C7F and C7N. Steel sheet or strip which is to be surface treated by hot dip coating is passed firstly through a direct-fired furnace in which the fuel-air ratio is controlled to produce an atmosphere such that there is formed on the steel an oxide layer not greater than 10<SP>-5</SP> inches thick in addition to any surface layer that may previously have been present; the steel is then passed through a second furnace having a mildly reducing atmosphere wherein the oxide layer is reduced. The atmosphere in the first furnace may contain oxygen in an amount corresponding to not more than 10<SP>-9</SP> atmosphere pressure in contact with the steel, while the furnace may operate at 1100‹ -1500‹C. to give a steel exit temperature in the range 400‹ - 950‹C. The second furnace may be heated electrically or by radiant tubes and the atmosphere therein may consist of nitrogen or inert gas containing not more than 15% of hydrogen. The steel may subsequently pass through a cooling zone and one or more holding or heat-treatment furnaces before entering a galvanizing tank.
Patent GB-1414658-A (GB)
Title: Optical alignment of objects
IPC: G01B11/00
Filed: 1972-11-22
Abstract: 1414658 Photo-electric positioning INTERNATIONAL BUSINESS MACHINES CORP 22 Nov 1972 [1 Dec 1971] 54046/72 Heading G1A In a method and apparatus for positioning one planar object in a desired position on another, patterns comprising at least one pair of non- parallel lines are provided in at least two spaced regions on each object, the pattern on each object for each region is scanned in a single direction as each object is placed approximately in its desired position to produce by means of a computer signals indicative of the position of the objects with respect to one another, and the relative positions of the objects are changed in response to the signals to achieve the desired alignment. The lines on regions 62, 64 are investigated by sensors 79A, 79B, 79C, 79D each having a slit parallel to one of the lines to produce in the computer 100 input pulses corresponding to the incidence of a respective line on a respective slit. Light for example from a helium laser is directed on to the lined region of the object and the path of the reflected light includes lenses 67A, B which image a Fraunhofer diffraction pattern at plane 69 where half-silvered mirrors include spatial band-stop filters to eliminate unwanted lines from other patterns on the objects, and rotating mirrors 77A, 77B which scan the images across the sensor. Signals resulting from the first object, a semi-conductor wafer 61 coated with photo-resist, are stored in the computer, and the difference between signals derived subsequently from the pattern mask 101 and those stored is used to position the wafer by means of servomotors 115, 117, 119. The principle whereby the times of intercepting non-parallel lines by a scanning line indicate by their sum and difference the co-ordinates of a point is explained with reference to Fig. 2 (not shown).
Patent GB-1168629-A (GB)
Title: Improvements in or relating to Box Conveying and Surface Wrapping Machines.
Inventor: WILLIAMS JOHN HENRY
IPC: B65B43/48
Filed: 1965-12-21
Abstract: 1,168,629. Making boxes. CALEDEX MACHINE CO. Ltd. 15 Dec., 1966 [21 Dec., 1965], No. 54224/65. Heading B5D. [Also in Division B8] In a box conveying and surface wrapping machine, a transfer mechanism movable between a transfer station on the conveyer and the wrapping machine, has limit stops 12, 13 for locating the front FW of a box and latch devices 23, 24 which are movable to engage the rear of the box. Each latch device 23, 24 comprises a latch 26<SP>1</SP>, Fig. 8, pivoted at 29<SP>1</SP> beneath a bracket base 25<SP>1</SP> adjustably mounted on a side transfer arm 9 which reciprocates longitudinally of the conveyer. On return of the transfer mechanism from the wrapping machine to the transfer station, the outer surface of a guide rail 40, 40 is engaged by an outer roller 37, 37<SP>1</SP> on the latch 26, 26<SP>1</SP> which is thereby moved outwardly against the action of a spring 32, 32<SP>1</SP>. During a dwell in the movement of the transfer mechanism, an inverted box and lid with associated wrapper is advanced to the transfer station along the conveyer, the forward lap of which is temporarily lowered as disclosed in Specification 1,005,189 to prevent fouling of the wrapper flaps by the transfer mechanism. The movement of the transfer mechanism is then restarted until the roller 37, 37<SP>1</SP> reaches an aperture 43a, 43a<SP>1</SP> in the guide rail 40, 40<SP>1</SP> whereupon the latch 26, 26<SP>1</SP> is swung laterally inwards by the spring 32, 32<SP>1</SP> so that the rear wall of the box is engaged by a roller 39, 39<SP>1</SP> on the latch 26, 26<SP>1</SP>. The wrapper flaps may be held by suction elements.
Patent GB-1207030-A (GB)
Title: Improvements in or relating to a net for wrapping sausages and meat products
IPC: A22C13/00
Filed: 1968-11-20
Abstract: 1,207,030. Knitted net. ESTAB. PAL. 20 Nov., 1968 [27 Nov., 1967], No. 55031/68. Heading D1K. A seamless knitted tubular net for wrapping meat products comprises warp chains of inelastic yarn coupled by an unknit covered rubber or synthetic elastic yarn.
Patent GB-1175128-A (GB)
Title: Rotary Hydraulic Pumps or Motors
Inventor: STRANDBERG LENNART
IPC: F01C21/08
Filed: 1967-12-05
Abstract: 1,175,128. Jib cranes; load handling; grabs. HIAB-FOCO A.B. 5 Dec., 1967 [13 Dec., 1966], No. 55262/67. Headings B8B and B8H. [Also in Division F1] A jib crane 30, Fig. 10, includes a mast 31 rotatable by an hydraulic piston-and-cylinder unit 34, 35 through rack-and-pinion gearing, a grab 41 being rotatable about a vertical axis by a rotary positive-displacement hydraulicmotor 43, which is attached to the free end of an arm 33 pivotally connected to a lifting arm 32 on said mast. The arms aforesaid are actuated by hydraulic piston-and-cylinder units 37, 38 and 39, 40 controlled by valves 46, 47 in an hydraulic system containing pumps 27, 28 and further valves 48-51 for controlling a piston-and-cylinder unit 60, 61, Fig. 7, which actuates the jaws 42 of the grab, a capstan 44 (see Division F1) for a towline 45, the motor 43 and the unit 34, 35, respectively. The grab is fixed to the lower end 62 of the output shaft of the motor 43, which in the arrangement shown in Fig. 7 is constituted by a motor 64 illustrated in detail in Figs. 8 and 9 (not shown), (see Division F1).