baber/WOPTO huggingface dataset:
Patent GB-947623-A (GB)
Title: Improvements relating to grinding or like machines
Inventor: CALDWELL ROBERT MENZIES
IPC: B24B37/10
Filed: 1961-12-07
Abstract: 947,623. Grinding machines. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 6, 1962 [Dec. 7, 1961], No. 43834/61. Heading B3D. A grinding or polishing machine for preparing specimens for metallographic examination comprises a rotary carrier 14 for an abrasive faced disc 15, an arm 19 pivoted about an axis 20 for swinging the specimen 25 across the surface of the disc, and means for converting a rotary input drive into rotation of the carrier and oscillation of the arm 19. The drive comprises an electric motor 30 and a two-stage reduction gearing in a gear-box 31, the output shaft 32 from the first reduction stage having a pin connection to a drive coupling 13 for the carrier 14 and the output shaft 33 from the second reduction stage being arranged to drive, through a coupling 34, gearing 35, crank-shaft 28 and link 26, the arm 19 which is in the form of a bell-crank. The disc 15 has a pin 16 serving to co-operate with a radial pin 18 on the carrier 14 to provide a driven connection. The inner end of the arm 19 is bored to receive a rod 23 which is loaded by a weight 24 and has the specimen 25 attached to its lower end. The carrier is mounted within a bowl 10.
Patent GB-1518850-A (GB)
Title: Process for producing thermally-developable light-sensitive compositions and elements
IPC: G03C1/498
Filed: 1975-10-24
Abstract: 1518850 Thermally developable materials FUJI PHOTO FILM CO Ltd 24 Oct 1975 [24 Oct 1974 13 Dec 1974 31 Jan 1975 15 April 1975 1 July 1975] 43924/75 Heading G2C Thermally developable light-sensitive compositions are prepared by a process which comprises (i) heating at 30‹ to 70‹C a mixture comprising (a) an organic silver salt, (b) a light-sensitive silver halide or a precursor thereof, and (c) a sulphurcontaining compound which comprises at least one labile sulphur atom and is capable of forming silver sulphide upon reaction with the organic silver salt or the silver halide and is represented by one of the general formulae: M<SP>I</SP> 2 S 2 O 3  or M<SP>II</SP>S 2 O 3  wherein M<SP>I</SP> represents a monovalent cation and M<SP>II</SP> represents a divalent cation; wherein Z<SP>1</SP> represents the atoms necessary to complete a 5- or 6- membered heterocyclic ring, which heterocyclic ring may be fused with an aromatic ring and R<SP>15</SP> represents a hydrogen atom or a substituent having up to 12 carbon atoms: wherein R<SP>16</SP>, R<SP>17</SP>, R<SP>18</SP> and R<SP>19</SP> each represents a hydrogen atom or a substituent containing 12 or less carbon atoms, or the sulphur-containing compound is an organic compound which contains a moiety of formula OCS-NR<SP>1</SP> wherein R<SP>1</SP> represents a hydrogen atom or a substituent containing up to 12 carbon atoms, and (ii) adding a reducing agent capable of reducing the organic silver salt. The sulphur-containing compound can also be a compound of the formula R<SP>2</SP>-CS-NR<SP>1</SP> R<SP>3</SP> where R<SP>3</SP> is as defined for R<SP>1</SP> and R<SP>2</SP> is a substituent containing 24 or less carbon atoms, e.g. R<SP>4</SP>R<SP>5</SP> N-, R<SP>6</SP>R<SP>7</SP>N-CS-NR<SP>8</SP>-NR<SP>9</SP>-, R<SP>10</SP>R<SP>11</SP>N-CS-(S) n - or R<SP>12</SP>R<SP>13</SP>C=N-NR<SP>14</SP>- where R<SP>4</SP> to R<SP>14</SP> inclusive are as defined for R<SP>1</SP> and n is an integer from 1 to 3. The mixture that is heated can also contain a lithium salt of a carboxylic acid. A compound containing a moiety of the formula -CONH- selected from compounds of the general Formulae  R<SP>24</SP>COÀNHÀR<SP>23</SP> and R<SP>23</SP>CONHÀCOR<SP>24</SP> wherein w represents the atoms necessary to complete a 4- to 8-membered ring, R<SP>21</SP> and R<SP>22</SP> each represents a hydrogen atom or an alkyl, aryl or alkoxy group and R<SP>23</SP> and R<SP>24</SP> each represents an alkyl or aryl group can also be present in the heated mixture. Improvement also results if the heating is effected in the presence of an oxidizing agent e.g. halogen, chloric acid, chlorate, bromic acid, bromate, ozone, organic or inorganic peroxides, peroxoacids, peroxoacid salts. The N- halogeno compounds also act as oxidizing agents. Component (c) is preferably added after the heating with oxidizing agent.
Patent GB-1479163-A (GB)
Title: Grating tuned photoemitter
IPC: H01J1/34
Filed: 1974-10-10
Abstract: 1479163 Cathode materials and processing R C A CORPORATION 10 Oct 1974 [15 Oct 1973] 43938/74 Heading H1D To enhance electron emission from a photocathode 10 in specific parts of the spectrum, a glass or other substrate 12, with alternate depressed etched strips 16 on its surface between unetched strips 18, formed preferably by exposing a photoresist to the interference fringe from two laser beams, is coated with a uniform film 15 of a metal-like reflective photoemitter, e.g. Ag-O-Cs or other material based on Ag, Au, Al, Mg or alkali metals, or alternatively a reflective, e.g. Al, layer with superimposed 5-50 nm layer of semiconductor photoemitter transparent over the wave length range to be enhanced, such as CsSb. With grating depth h in the range 0À5-50 nm and with light incident normally, the component polarized parallel (electric vector) to the X axis launches surface electromagnetic waves across the grating over distances of less than 20 micron, allowing high resolution, their wavelength being 0À88 nm for a free space wavelength of 0À93 nm. If the grating pitch b is made to match the wavelength H of the surface waves, electron emission under vacuum is enhanced (Fig. 4 not shown). The peak wavelength can be split into two satellites by changing the angle of incidence away from the normal. An alternative grating comprising a chequerboard pattern of three levels, made by etching strips orthogonally, is not sensitive to polarization. The periodicity may itself be non-constant to enhance emission over a range of wavelengths.
Patent GB-944073-A (GB)
Title: Improvements relating to grilles
Inventor: WHITMARSH HERBERT FREDERICK
IPC: F21V11/06
Filed: 1961-12-11
Abstract: 944,073. Louvres for light fittings. INITIAL PLASTICS Ltd. Oct. 30, 1962 [Dec. 11, 1961], No. 44247/61. Heading F4R. A grille section for use with light fittings is formed by a number of thin plastic strips arranged in two directions at right angles, the strips 1 running parallel to the edges of the section and the four edges being bounded by intermittent strips 2 extending across alternate gaps between the ends of the strips running in the other direction. The outside corners 3 where the intermittent strips join the strips running in the other direction are chamfered so that when two similar sections are stuck together with the intermittent strips of one section fitting in the gaps of the other section, the edge strips and the strips at right angles thereto form continuous straight strips.
Patent GB-973057-A (GB)
Title: A system of control signals for deposit boxes
Inventor: ALM BERTIL
IPC: G08B13/22
Filed: 1962-11-23
Abstract: 973, 057. Electric selective signalling. SPARFRAMJANDET FORLAGSAKTIEBOLAG. Nov. 23, 1962, No. 44342/62. Heading G4H. In a system for supervising access to a coordinated array of safe deposit boxes Al, A2, A3, B1, B2, B3 each box when unlocked earths two contacts 13,14-one in each of two circuits 1, 2, 3 and A, B, -to energize an associated pair of red lamps S and buzzers 21. However, if, before a box is unlocked an operator actuates the appropriate push button combination (e.g. B and 2 for box B2) then two amber lights K come on immediately and when the box is unlocked only the red lights and not the buzzers come on. When the box is relocked the red lights go out and the operator can unlatch the depressed push-buttons.
Patent GB-1516778-A (GB)
Title: Band brake and control linkage
IPC: B62D11/08
Filed: 1976-10-26
Abstract: 1516778 Band brakes CATERPILLAR TRACTOR CO 26 Oct 1976 [11 March 1976] 44393/76 Heading F2E The brake has an actuating lever 50, Fig. 1, provided with a pair of anchor pins 20, 34, a brake band 10 which is arranged to be trained around a rotary element 12 to be braked in either direction of rotation and which has its opposite ends connected to respective ones of the anchor pins 20, 34, an anchor bracket 80 having slots 82, 84, opening respectively upwardly and downwardly, each slot loosely receiving a respective one of the pins to provide a fulcrum, when appropriate, for the actuating lever 50, and means, e.g. spring 94, resiliently biasing directly the pin 34 into engagement with the bottom of its associated slot 84.
Patent GB-970323-A (GB)
Title: Improvements in punching devices
IPC: B21D31/02
Filed: 1961-12-12
Abstract: 970,323. Punching machines. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 12, 1961 [Dec. 15, 1960], No. 44444/61. Heading B4B. A device for punching closely-spaced small holes in mica 10 comprises a punching head 2 provided with a collet chuck 45 which centres a punch 47, a guide member 57, 65 and a pressure pad 49 movably centred within the guide member. The collet chuck 45 is carried in a sleeve 35 depending from a slide 24 which runs between balls in guide rails 28 and is arranged to be actuated by a hand-operated cam 15 bearing on a ball race 21 journalled in the slide. As shown in Fig. 4, the punch and the portion 57 of the guide member are held on the chuck 45 by a screw cap 41 and the pressure pad 49 is yieldably held by a spring 67 within the sleeve portion 65. Alternatively, the portion 57 and sleeve 65 may constitute a single unit. In operation, when the cam 15 is turned, it lowers the punching head 2 quickly at first and then slowly as the pressure pad 49 reaches the workpiece 10. On contact with the workpiece, the pressure pad is pushed back against the action of the spring 67 and, after the punch has penetrated the workpiece resting on a die 8, a spring (not shown) returns the slide.
Patent GB-1522269-A (GB)
Title: Method of forming a semiconductor device
IPC: H01L21/22
Filed: 1976-10-27
Abstract: 1522269 Semiconductor devices NCR CORP 27 Oct 1976 [10 Nov 1975] 44551/76 Heading H1K To isolate semiconductor circuit devices in a common P(N) type substrate 10, N(P) type ions are implanted in the substrate 10, a P(N) type dopant is diffused into selected areas of the substrate 10 to a greater concentration than the implanted ions, and the substrate 10 is heated to drive the dopants further in so that the diffused dopant, being present in a greater concentration, penetrates deeper into the substrate 10 and forms deep isolation wells 28 which isolate device areas 34, 36, 38 formed in the regions 26 containing the driven-in implanted ions. The devices may be IGFETs and a CMOS device may be formed by masking part of the substrate against ion implantation. The substrate 10 may be silicon and the implanted ions phosphorus. The diffused dopant may be boron deposited from BBr 3  gas. The gas forms boron glass in apertures in an oxide layer and boron atoms in the substrate under the apertures.
Patent GB-1407648-A (GB)
Title: Slider assembling device for slide fastener chain
IPC: A44B19/62
Filed: 1973-09-25
Abstract: 1407648 Slider assembly device for sliding- clasp fasteners YOSHIDA KOGYO KK 25 Sept 1973 [3 Oct 1972] 44875/73 Heading E2S A device 10 for assembling on a fastener chain slider of the type including a pull tab S 4  pivotally supported on a lug S 6  on the slide comprises a vertically elongated casing 11 having an opening 18 therein for accommodating a series of sliders S that are transported by their own gravity, a guiding means 19 disposed in said opening and guiding the movement of said series of sliders, a holding means 23 integral with said guiding means 19 and holding a leading one of said sliders in position for assembly on the slide fastener chain F, resilient means 27 for releasably holding said leading slider, and means 28 for arresting and preventing said series of sliders from moving 'backward during the assembly operation. As shown in Fig 1 the device comprises a rectangular casing 10 which acts as a slider chute and is formed of side walls 12, 13, a rear wall 14, and inwardly-directed protruberances 15 which define a slit 17 in the front edge. Each of a train of sliders S 1  accommodated in the chute, comprises a top S 1  and a bottom wing S 2  which wings are connected at one end by a neck S and each carry a lug S 6 , S 7  to which a pull tab S 4 , S 5  is pivoted. The sliders as they descend by gravity. are guided by a pair of spaced-apart rails 20, 21 which define a slit of a width to slidingly receive a lug S 6 , and each have a thickness equal to the spacing between the top surface of the wing S 6  and the pivotal end S 8  of the pull tab S 4  such that these. parts of the slider ride astride the opposed rails 20, 21 as they descend in the chute. Each slider proceeds, in turn, to the slider holding means 23, which extends from the guiding means 19 and consists of a pair of tapered tongues 24, 25, the, leading slider S' in the train being resiliently maintained in place at the free ends of the tongues 24, 25, which are curved slightly upwardly, by spring members 26, 27. The latter, having their ends 26', 27' biased toward each other, are shaped to fit the sideflanges S 9  of the slider S' to hold the latter in position as it is assembled, by an operator, on a fastener chain F. The interior face of the rear wall has a series of ledges 28 which are engaged by the tabs S 5  to hold the sliders against backward movement while the chain F is being drawn through a slider S. In a modification, Fig 4 not shown, backward movement of the sliders S is prevented by spring- loaded levers (30) which are pivoted within the guide rails (20, 21).
Patent GB-1406200-A (GB)
Title: Dividing rolled lengths of stock into merchant lengths
IPC: B21B37/70
Filed: 1973-09-26
Abstract: 1406200 Dividing rolled lengths SCHLOEMANN AG 26 Sept 1973 [30 Sept 1972] 45067/73 Heading B3W To divide rolled lengths of stock into saleable lengths, each rolled length is divided, e.g. by shears, into a number of multiple lengths, at least the last one of which is equal to an integral multiple of a saleable length plus a discard length and the remainder of which are equal to an integral multiple of a saleable length, the or each length which includes the discard length being longer than any of the integral multiple lengths and all the multiple lengths being respectively not greater than nor less than the maximum or minimum length permitted by a subsequent cooling bed in which the multiple lengths are cooled, the multiple lengths from a number of rolled lengths are collected into batches and the batches are divided, by a saw or shears, into saleable lengths and at least one discard length. As shown, the optimum saleable length VL and prospective discard length RL of a rolled bar is calculated in a computer 9 before the bar is fed to a flying shear 3 from the charge weight and by taking into account the preceding and following bars, the specified saleable length and the cooling bed length. A photocell 8 signals the passage of the leading end of a bar and a tachometer 12 signals the bar velocity to the computer 9 which controls the operation of the shear 3 via a pulse transmitter 11. To allow for deviations from the pre-calculated total rolled length when the bar is divided, the multiple lengths are precalculated so that the last one before the multiple length including the discard length on the last two will be cut shorter by at least one saleable length than the maximum multiple length. Detectors 10 preceding the last roller pair 1 measure variations from the total length and feed the data to the computer which causes this or these shorter lengths to be cut longer or shorter than the precalculated length. The multiple lengths are decelerated on roller table 4, and passed through cooling bed 5 to be assembled in batches on a roller table 6 for simultaneous cutting by a saw or shear 7, the discard length being removed laterally manually or using a driven pusher. The precalculations ensure that if there is more than one multiple length which includes a discard length RL in a batch, the multiple lengths are the same so that the discard lengths are left on the table by the same severing stroke of cutter 7.
Patent GB-957116-A (GB)
Title: Improvements in or relating to the treatment of wool
IPC: D01B3/04
Filed: 1961-12-15
Abstract: Landin is separated from wool by separately submitting the wool to a treatment with water and with a hydrocarbon solvent, e.g. hexane, in either order and between the two treatments subjecting it to a treatment with an alcohol, e.g. isopropyl alcohol.
Patent GB-1221169-A (GB)
Title: Method and apparatus for trimming trawl nets
IPC: A01K73/02
Filed: 1969-09-12
Abstract: 1,221,169. Trawling. FRIED. KRUPP G.m.b.H. 12 Sept., 1969 [13 Sept., 1968], No. 45196/69. Heading A1A. [Also in Division H4] A method of controlling the trim of a trawl net by adjusting the length of the trawl warps employs an acoustic method for determining the symmetry of the net. By measuring distances c and c<SP>1</SP> between reference points A, B and A, B<SP>1</SP> respectively using acoustic transducers, information on the spatial arrangement of the net is obtained. To help in the interpretation of this information a triangular calculating device, Fig. 2 (not shown), may be provided. An alternative arrangement employs 4 transducers B B<SP>1</SP>, C C<SP>1</SP>, Fig. 3 (not shown).
Patent GB-1426776-A (GB)
Title: Footwear
IPC: A43B1/14
Filed: 1973-09-27
Abstract: 1426776 Boots &c T FUKUOKA 27 Sept 1973 45302/73 Heading A3B A shoe 1 has an upper 3 consisting of two or more upper sections which are connected to one another by a shape retaining and connecting member 10 moulded from resinous material. As described the upper is formed from a toe cap section 6, counter sections 7, side vamp sections 8 and an upper vamp section 9 which are joined together by a moulded strip 10 of plastics material, the toe cap section 6 and counter sections 7 being moulded integrally with the connecting member as shown in Fig. 6. The vamp sections 8 and 9 are formed from air permeable, woven or non-woven natural or synthetic fibrous material. The upper sections to be joined may be formed with openings 11, 11' (Fig. 5) into which the material of the connecting member 10 flows during the moulding thereof, but these openings may be omitted if the upper section is formed of a material having interstices into which the plastics material may flow. The connecting member 10 may be formed integral with the sole 2 (Fig. 1), the sole 2 and member 10 being formed in a single moulding step. Alternatively the upper 3' and sole 2' may be formed separately (Fig. 9), the edge of the upper 3' being secured to an upstanding rib 25 formed on the sole 2' by stitching and/or adhesive.
Patent GB-1208807-A (GB)
Title: Improvements in television picture sources
Inventor: CHAMBERS JOHN PHILIP
IPC: H04N5/217
Filed: 1968-09-25
Abstract: 1,208,807. Television. BRITISH BROADCASTING CORP. 7 July, 1969 [25 Sept., 1968], No. 45606/68. Heading H4F. To compensate for light scattered within the picture source and unwanted light generated within the source which results in a false distribution of light in the reproduced image, i.e. flare, a signal proportional to the video signal integrated over a field or picture period is added to the video signal. When a film is scanned by a flying-spot scanner the distortion due to flare is caused by stray light appearing on the phosphor of the tube displaying the raster which is imaged in the plane of the scanned film. This uniformly distributed flare results in a displacement of the true black level in the video signal. Flare caused by abrupt changes of picture content due to editing the filmed material is also compensated. As shown, the input video signal is blacklevel clamped 13 and fed to integrator 14 which is reset during every or every other field blanking interval. The resulting integrated field or picture is retained in a sample and hold circuit 15 and applied to a switch 16. Preferably, switch 16 is closed once during each line blanking interval, the resulting pulses being added 17 to the input video signal to produce the output 18 on which subsequent black-level clamps will act to restore true black level and hence eliminate or at least reduce flare. As shown, the correction formed during one integration period is applied to the next following integration period. To avoid this " overshoot " the input video signal applied to adder 17 may be delayed for one integration period. Switch 16 may be closed during the line period instead of the line blanking period, the resulting pulses being inverted. When compensating a colour picture source each colour camera output may be independently compensated or a common correction signal may be utilized.
Patent GB-1244012-A (GB)
Title: Process for the preparation of electrically conductive film
IPC: C01G3/04
Filed: 1968-09-26
Abstract: 1,244,012. Transparent cuprous iodide films. RANK XEROX Ltd. 26 Sept., 1968 [2 Oct., 1967], No. 45826/68. Heading C1A. [Also in Division C7] Electrically conductive, transparent cuprous iodide film is prepared by evaporating copper on to a clean, dry substrate material in the absence of substantially all oxygen and moisture to form a copper film, removing any oxide formed on the surface and exposing said film to an iodine-hydrophobic solvent solution. The substrate, which is preferably substantially transparent may be cleaned, preferably with trisodium phosphate and water, and dried. During the evaporation of the copper on to the substrate, the copper is preferably at a distance of 14 to 18 inches from the substrate. Suitable materials for removing oxide from the copper fibre are monobasic organic acids and inorganic acids. Traces of the deoxidizing agent are removed by exposure to a hydrophobic solvent, preferably trichloroethylene or toluene. During exposure of the film to the iodine-hydrophobic solvent solution temperatures of 70‹ to 80‹ F. are maintained.
Patent GB-1320439-A (GB)
Title: Valves
IPC: F16K17/04
Filed: 1971-10-04
Abstract: 1320439 Valves BENNES MARREL 4 Oct 1971 [9 Oct 1970] 46008/71 Heading F2V A safety valve for an hydraulic circuit, especially for hydraulic pit props comprises a hollow rigid body 1 provided with input port 2 leading to a chamber 4, 6 with shoulders 3, 5 which accommodates a resilient cut-off member 21, made of, for example, rubber or plastics material, a rigid washer 11, and a rigid antiextrusion ring 14, such that, in normal working, the cut-off member is urged into a closed position, the sides of the member bearing against the wall of the chamber cutting off flow to the outlet pipe 20. The washer 11 and ring 14 are provided with radial notches to facilitate the leakage of fluid and are made of, for example, metal. The loading is effected by means of gas, e.g. nitrogen, under pressure in the axial bore 28 of the member 21 and the region 6 of the chamber. The gas is introduced through an aperture 36 and reaches the chamber by temporarily lifting the lip 27 of the member 21 as indicated in Fig. 5. The chamber 6 is closed by a screw-threaded member 30 and sealed by means of a gasket 8. The member 30 is provided with a fixed abutment 32 which limits movement of the member 21. In the case of excess pressure in the port 2, the fluid pressure prevails over that of the gas pressure and the member 21 contracts to allow fluid to flow to the outlet pipe 20.