baber/WOPTO huggingface dataset:
Patent FR-1112734-A (FR)
IPC: C04B37/02
Filed: 1954-08-04
Granted: 1956-03-19
Abstract: 761,662. Soldering and brazing. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 4, 1954 [Aug. 4, 1953], No. 21531/53. Class 83 (4). In joining a metal part to a part of dielectric material, e.g. of glass, porcelain or semi-conductive material, the latter is coated with nickel-chromium alloy by thermal evaporation in vacuo and the coating or further metal applied thereto is soldered or brazed to the metal part. The parts should preferably have similar temperature co-efficients of expansion and thus may be of a 28 per cent nickel, 54 per cent iron, 18 per cent cobalt alloy and a borosilicate glass or an aluminous porcelain formed of a mixture corresponding to 3Al 2 O 3 2SiO 2  bonded by a fusible glass. When soft soldering is used the freshly deposited coating may be tinned without flux or a further coating, e.g. of copper or tin may be deposited on the alloy by sputtering, electrodeposition, spraying or thermal evaporation in vacuo. In an example, an 80 per cent nickel 20 per cent chromium alloy is deposited on a glass plate and a copper film is deposited thereon by thermal evaporation, the surface to be coated being kept at 300-450‹ C., and a copper wire is soft-soldered to the copper film by a resin-cored solder. When hard soldering is to be used a thick further coating may be electrodeposited on the alloy coating or on to a further coating deposited on the alloy coating by thermal evaporation. In an example a first film of 80 per cent nickel, 20 per cent chromium and a second film of copper are deposited by thermal evaporation on an alumina ceramic base and the copper is built up to 0.005 inch thickness by electrodeposition. A metal disc is then soldered to the copper with a solder of composition silver 49-51 per cent, copper 14-16 per cent, zinc 15-17 per cent, and cadmium 18-20 per cent. In one embodiment the end of a glass or ceramic tube 2, Fig. 2, is coated as described in the examples and a metal tube 1 is soldered thereto, a ring of solder 6a being melted by an induction coil 7 to form a solder fillet. In a modification, Fig. 5, both the end face and a circumferential surface of a glass or ceramic tube 2 are coated and the tube is soldered into a recess in a metal tube 1 by induction heating. In a further modification the coated end of a glass or ceramic tube 2, Fig. 7, is soldered into a groove 11 in a metal tube 1a, solder being provided as a ring in the groove or as a coating on the grooves surfaces and melted by induction heating. Two ceramic tubes are secured in this manner into perpendicular faces in a metal block.
Patent GB-1015291-A (GB)
IPC: D02G3/28
Abstract: 1,015,291. Forming twisted strands of silvers, yarns &c. -COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION. Oct. 16,1962 [Oct. 19, 1961; Jan. 16,1962], No. 39136/62. Headings D1D,D1F and D1W. A process for forming stable twisted "threads" from at least two "strands" comprises twisting a strand so that it has repeated along its length alternate zones of opposite twist, and stabilizing the twist by converging the strand with another strand and allowing it partly to untwist and thereby to twist around that other strand. The process may be be applied to consolidate rovings or slivers of wool, cotton, jute, flax or synthetic fibres after drafting gilling or combing, or to form yarns of stable fibres or of mono-or multi-filament strands. One or more twisted strands may be combined with an untwisted strand to form a core yarn-for example a core of nylon filaments and a covering of cotton or wool fibres-two twisted strands may be combined to form a novel plied yarn, Figs. 11A, 12A, 13A (not shown), or more than two twisted strands may be combined either directly or perhaps by splitting two strand threads and recombining the strands. The intensity of twist, or length of twist zone, may vary from strand to strand, while the strands may be of different colours. In Fig. 2 (not shown) two rovings 1 are passed through an apron drafting mechanism 3, and optionally through a twist length compensating device 6, to a twisting device 8, and then to takeup rollers 14 which comprise a pair of plastics impregnated fabric spur gears each having a vshaped groove 15, Fig. 6 (not shown), cut to about their pitch circle diameter. The twisting device comprises a central disc 9 having on each side a part annular rubber surface, and side discs 10 each having on the surface adjacent disc 9 a complete rubber annulus, each roving only being twisted when the appropriate part annular ring is in contact with the corresponding side disc, but the back twist in the roving being allowed to pass through device 8 when the part annular ring is out of contact with the side disc. The part annular rings on the two sides of disc 9 may be completely out of phase, or only partly so. In a second embodiment, the Figs. 8 and 9 (not shown) the drafting unit is of the roller type, the twisting unit comprises two tubes 20, Fig.10, and the strand converging device a series of rollers. Each tube 20 comprises jaws 21 pivoted to rotating tube 24 and having adjustable weights 26 which through centrifugal forces cause the jaws to grip and twist the strand 5. Periodically, through cam device 22, 27 non-rotating inner tube 23 moves to the right (Fig. 10) to open the jaws and allow the back twisted roving to pass through unhampered. Other twisting devices, which may be used, include intermittent or reversing tubes; or tapes or hyperboloidal rollers suitable modified to give an intermittent twist; or vortex twisting tubes.
Patent GB-1032306-A (GB)
IPC: H02M7/06
Abstract: 1,032,306. Rectifying. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 26, 1964 [Aug. 29, 1963], No. 34911/64. Heading H2F. In a high-voltage D.C. supply (e.g. for X-ray apparatus) comprising a three-phase transformer 1 feeding a bridge rectifier 8, switch-on voltage surges in the rectified output are prevented by using a relay contactor 10 to connect all three phases of the transformer 1 to a threephase supply at the instant the voltage on one phase passes through zero and by including in one phase a damping resistor 21 which is shorted out after a delay (of e.g. 3 to 7 milliseconds for a 50 c/s. supply). A known circuit arrangement Sy detects the said voltage zero on one phase (T) and operates the contactor 10, and the resistor 21 is connected in the phase (R) whose voltage lags by 120 degrees with respect to the phase T. An auxiliary contact 24 on contactor 10 operates an auxiliary relay 23 which shorts out resistor 21 after a delay. In a modification (Fig. 3, not shown) the auxiliary relay 23 may be omitted and the contact 24 itself then operates with a delay to short out the resistor 21. In a further modification (not shown) the relay contactor 10 may be replaced by gas-discharge tubes.
Patent GB-1065230-A (GB)
Abstract: 1,065,230. Calculating-apparatus. NATIONAL CASH REGISTER CO; Ltd. Dec. 17, 1965, No. 53611/65. Heading G4B. A check number evaluating device adapted to evaluate a check number x for use with any multi-digit number up to a predetermined number m of digits such that the check number obeys where n is the number of digits in the given number, n being #m, Di is the value of the i<SP>th</SP> digit of the number and Wi is a weighting factor assigned to the i<SP>th</SP> digit; comprises a casing (10), a plurality of slides (12) mounted in the casing and corresponding to the weighting factors, each slide having marked thereon a first series of integers (1 to 9) and a second series of integers which are respectively related to the integers of said first series by the rule AiW + Bi# O MOD P where Ai is the  i <SP>th</SP> integer of said first series, W is the weighting factor and Bi is the  i <SP>th</SP> integer of said second series, the casing having formed therein a series of slots (16) associated with slides (12) and a series of windows (18), said first series of integers of each slide appearing through a respective slot when the slide is in the rest position and the arrangement being such that upon actuating a slide by moving it such that a selected integer of said first series is adjacent a reference point (24) on the casing, the related integer of said second series will appear in the respective window (18). The device further includes a MOD P counter comprising a dialling member (26) rotatably mounted on casing (10), Figs. 1 and 3 (not shown), a portion (30) of the member (26) being masked by the casing and having marked on it at least one series of integers 0 to (P - 1). The casing is provided with a window (36) which is so positioned that with the counter set to any selected count, there appears in the window the appropriate integer. The casing surrounding the circular central portion (32) of the member (26) is also provided with reference integers 1 to (P- 1), dialling holes in the central portion (32) being positioned adjacent these integers as illustrated in Fig. 1 when the counter is set to a count. A stop arm (40) is provided having a stop surface (42). Figs. 4, 5 and 6 (not shown) illustrate a device which is adopted to operate with either MOD 10 or MOD 11. Operation.-If the check number for the number 7340 is to be evaluated, firstly the appropriate slides are moved according to their respective digits (Fig. 1) and the integers 9, 10, 10, 0 will respectively appear in windows (18). Next, before the dialling of these numbers takes place the counter is first set to count 0 by engaging the actuating pin in the dialling hole (38) adjacent reference mark (44) and rotating member (26) in a clockwise direction until the pin engages with surface (42). The integers 9, 10 and 10 are then dialled and the integer finally appearing in window (36) is the required check number.
Patent GB-1226682-A (GB)
IPC: B41J31/00
Filed: 1968-04-11
Abstract: 1,226,682. Carbon paper &c. INTERNATIONAL BUSINESS MACHINES CORP. 11 April, 1968 [3 May, 1967], No. 41416/68. Divided out of 1,226,681. Heading D2B. The disclosure is substantially the same as that of Specification 1,226,681, but the claims relate to a method for preparing a pressuresensitive transfer medium that includes forming on a temporary supporting substrate a transfer layer consisting of a porous plastics material with an ink composition in its pores, in which the plastics material and the supporting substrate have different capabilities for absorbing moisture, treating the transfer layer and its supporting substrate so that absorption of moisture weakens the bond between them and then stripping the transfer layer from its supporting substrate.
Patent GB-1228211-A (GB)
IPC: C07J5/00
Filed: 1968-03-19
Abstract: 1,228,211. #<SP>9</SP>(<SP>11</SP>)-Steroids. ROUSSELUCLAT. 19 March, 1968 [20 March, 1967], No. 13140/68. Heading C2U. The invention comprises (A) 13#-alkyl-5Ochydroxy - 10# - (optionally substituted hydrocarbyl) - 9(11) - dehydro - steroids, excluding compounds containing a substituent attached by a carbon-carbon bond to the 17#-position; (B) 3,3 - ethylenedioxy - 5# - estra - 1(10),9(11)- diene - 5,17# - diol (X); and (C) the preparation of 13#-alkyl-5-hydroxy-10-(optionally substituted hydrocarbyl)-9(11) -dehydro-steroids from 13# - alkyl - 5,10 - epoxy - 9(11) - dehydrosteroids (in which any ceto groups are protected) (XI) by reaction with an optionally substituted hydrocarbyl magnesium bromide, chloride or iodide. A 3-hydroxy product may subsequently be oxidized to the corresponding 3- one. A product having an oxo, ketalized oxo, hydroxylimino or alkoxyimino group in the 3- position may subsequently be treated with acid to yield the corresponding 4,9(11)-bisdehydro-3- one. Compound X is isolated as a by-product from the reaetion of 3,3-ethylenedioxy-5,10-epoxy-5#- estr-9(11)-en- 17#-ol benzoate with MeMgBr according to (C) above (Example (III). 10a - Pregna - 4,9(11 - diene - 3,20 - dione is prepared from 17# - hydroxy - 10α - androsta- 4,19(11) - dien - 3 - one by successive protection of the 3-oxo group, Oppenauer oxidation of the 17#-hydroxy group and a Wittig reaction (Example III). Compounds XI are prepared as described in Specification 1,228,212. The present Specification additionally discloses the preparation of 3,20 - bis{ethylenedioxy) - 5α,10α - epoxy - 19- norpregn - 9(11) - ene and the corresponding 5#,10# - epoxide from 19 - norpregna - 5(10),- 9(11) - diene - 3,20 - dione via 3,20 - bis(ethylenedioxy) - 19 - norpregna - 5(10),9/11)- diene.
Patent GB-1228869-A (GB)
IPC: G03C5/305
Filed: 1968-08-15
Abstract: 1,228,869. High contrast silver halide photographic material containing a cadmium salt. EASTMAN KODAK CO. Aug. 15, 1968 [Aug. 18, 1967], No. 39111/68. Heading G2C. A high contrast photographic material comprising a support bearing a layer of a high contrast silver halide emulsion (i.e. one in which the halide comprises at least 50 mole per cent chloride and less than 5 mole per cent iodide, the remainder being bromide, said emulsion when exposed on a sensitometer and developed for 2 minutes at 20‹C. in the developer of the composition: sodium sulphite (anhy,) 30 g., paraformaldehyde 7À5 g., potassium metabisulphite 2À6 g., boric acid (cryst.) 7À5 g., hydroquinone 22À5 g., potassium bromide 1À6 g., and water to 1000 ml has a gamma of at least 4 measured between a density of 0À3 and 3À0) contains in the emulsion layer or a layer contiguous thereto at least 10 grams per mole of silver halide of a cadmium salt, preferably cadmium chloride. The silver halide emulsion preferably comprises at least 90 mole per cent chloride and preferably 1 mole per cent iodide and 9 mole per cent bromide. The presence of the cadmium salt in these emulsions increases the speed and effective contrast and reduces the occurrence of drag lines in the materials when imagewise exposed and developed in a continuous transport processing machine. In the example the developer is one capable of infectious development and contains a sodium formaldehyde bisulphite condensation product with 2, 21-iminodiethanol and hydroquinone as the developing agent. The concentration of the developing agent is preferably from 0À05 to 0À50 mole per litre and the concentration of the carbonyl bisulphite-amine condensation product is preferably from 0À10 to 1À0 mole per litre of developer.
Patent GB-1229560-A (GB)
IPC: A23L5/20
Filed: 1969-09-22
Abstract: 1,229,560. Treating vegetables. PRODUCTS FINDUS S.A. 22 Sept., 1969 [2 Oct., 1968], No. 46479/69. Heading A2E. Undesirable anions, for example nitrate and oxalate, are at least partially removed from vegetables, for example spinach, by treating the vegetables with water in a preliminary cycle, separating and recovering the vegetables and the water, and in subsequent cycles reducing the anion content of the recovered water, for example with an anion-exchange resin, and treating further untreated vegetables with the thus treated recovered water.
Patent GB-1233826-A (GB)
IPC: B65D71/52
Filed: 1969-07-31
Abstract: 1,233,826. Bottle carriers. ILLINOIS TOOL WORKS Inc. 31 July, 1969 [31 July, 1968], No. 38529/69. Heading B8C. A flexible carrier 10 for holding a group of containers (e.g. six bottles 60) in a pair of adjacent rows is folded about the bottles 60 so that a central member 14 engages the bottles adjacent their upper ends, a section 32 engages the outer sides of the bottles, base members 46 support the bottoms of the bottles, strips 52 are disposed between the rows, and a handle 54 projects through and above the central member 14. The section 32 comprises parallel pockets 34, each engaging a bottle. In a modification (Fig. 7, not shown), the strips 52 are replaced by further pockets (80), in which case the pockets 34 may be replaced by strips.
Patent GB-1239446-A (GB)
IPC: B01D35/00
Filed: 1968-06-17
Abstract: 1,239,446. Filtering column. BIO. RAD LABORATORIES and D. L. BITTNER. 17 June, 1968 [19 June, 1967], No. 28798/68. Heading B1D. [Also in Divisions B8 and F2] A container comprising axially adjacent wide and narrow tubular sections is closed by a cover which makes respective seals with the tops of the wide and narrow sections (Fig. 4) and possibly with a central part of the wide section as well (Fig. 5). Fig. 6 (not shown) illustrates another construction. The container may be open at the lower end and form the top of a stack of interfitting tubes containing filter media, the covers protecting the media during transit. Fig. 2 illustrates how two adjacent tubes may fit together, socket 18 being integral with the lower tube and co-acting cap 20 being removable from the upper tube. The tube section 118 in Fig. 4 is separable from its tube 116 and may act as a socket to receive a correspondingly shaped removable cap on the lower end of a tube above (Fig. 3, not shown). Different tubes may have different media such as glass wool, cellulose derivative and ion exchange resins, and tubes are stacked to form a set of filters in series.
Patent GB-1250584-A (GB)
IPC: H01L21/225
Filed: 1969-12-19
Abstract: 1,250,584. Semi-conductor devices. SIEMENS A.G. 19 Dec., 1969 [20 Dec., 1968], No. 61910/69. Heading H1K. A method of manufacturing a semi-conductor device with at least two diffused zones of different conductivity types comprises depositing a first layer of a doping material of opposite conductivity type on to a surface of a silicon wafer of one conductivity type, etching all but a portion of the layer, depositing a nickel layer containing a dopant of the one conductivity type on the etched areas, and diffusing in the dopants from the first and nickel layers. In an embodiment, a phosphorus layer is deposited on both surfaces of a P-type silicon wafer, the layer being oxidized to form a " glass," diffusion to a depth of 3Á simultaneously taking place. Masking of one surface, and etching of the first layer and diffused region forms a mesa structure. The nickel layer which contains 5% boron is chemically formed on the etched area and diffusion takes place at a temperature of 1000‹ C. to 1200‹ C. during which the mesa portion diffuses to form the emitter, the nickel layer the base, and the phosphorus layer on the other surface the collector. The base region forms a P<SP>+</SP> region and is a non-blocking contact for electrodes. The nickel layer may be doped with a 3 to 10% concentration of boron or phosphorus. Specification 1,250,585 is referred to.
Patent GB-1252486-A (GB)
IPC: H02K3/487
Filed: 1969-05-07
Abstract: 1,252,486. Securing coils for dynamo-electric machines. V. S. KILDISHEV, and V. B. KAPLUNOV. 7 May, 1969, No. 23218/69. Heading H2A. In an electrical machine stator comprising winding bars 4 mounted in slots 3 adjacent an internal bore of the stator core 1, the bars have a combined height at least equal to the depth of the slots and are held in position by components 9 located between the bars and an insulating cylinder disposed in the bore. The cylinder 6 has slots co-operating with the core slots and may be built up of rings of insulating material, the component 9 in each slot in the cylinder being either a single wedge, as shown, or two wedges, Figs. 5, 6 (not shown). In a modification, Figs. 2, 4 (not shown), the cylinder 6 is continuous and is formed with threaded holes (10) through which pass non-magnetic screws which press on gaskets (11) to secure the winding bars in position.
Patent GB-1257132-A (GB)
IPC: G03B21/16
Filed: 1969-11-21
Abstract: 1,257,132. Supply systems for projectors. ERNSTLEITZ - G.m.b.H. 21 Nov., 1969 [12 Dec., 1968], No. 57132/69. Heading H2H [Also in Divisions G2-G3] A projector has a main switch 3 for connecting lamp 5 across supply 1, and a subsidiary switch 6 with a movable contact 6c operable by a time delay unit 9 to switch off fan motor 8 when a pre-determined time has passed after opening switch 3. Unit 9 may comprise a temperature-sensitive actuator, a pulse generator with mechanical, pneumatic, hydraulic or electrical delay means. Switch 3 may be a double pole switch.
Patent GB-1265007-A (GB)
IPC: H01L23/36
Filed: 1968-12-09
Abstract: 1,265,007. Semi-conductor devices. ASSOCIATED ENG. Ltd. 18 Nov., 1969 [9 Dec., 1968], No. 58456/68. Heading H1K. An assembly comprises a semi-conductor device 1, a heat sink 2, and a plasma or flame sprayed layer 3 of an electrically insulating and thermally conducting material provided between adjacent surfaces of the device and heat sink. The layer 3, which may be formed on the heat sink or the device, may be of alumina, titania, magnesia, chromium nitride, aluminium nitride or a mixture of alumina and titania. A metal layer 4, e.g. of copper, may also be provided, by plasma spraying, on the layer 3, and the device may be soldered to it. Alternatively the layer 4 may be an epoxy resin which is secured to 3 by melting, and finally cured in contact with the device. In a further alternative the layer 4 may be dispensed with, and the device may be in contact with the layer 3.
Patent GB-1265038-A (GB)
IPC: C01B33/12
Filed: 1969-11-21
Abstract: 1,265,038. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 21 Nov., 1969 [30 Dec., 1968], No. 57181/69. Heading H1K. [Also in Division B6] A process for etching composite layered structures including a layer of silicon nitride and a layer of silicon dioxide comprises applying an aqueous etching solution containing hydrogen and fluoride ions, with a fluoride ion concentration equivalent to that of an aqueous solution of hydrogen fluoride with a concentration less than 2% by weight. The solution may comprise hydrofluoric acid, ammonium fluoride, ammonium bifluoride, or fluosilic acid. In one form, a silicon substrate having a layer of silicon dioxide and an outer layer of silicon nitride is further coated with molybdenum, platinum or nichrome and with a photosensitive resist which is formed photolithographically into a mask through which the metal layer is removed as with a ferricyanide solution. The remaining metal and photoresist are used as a mask through which the silicon nitride and silicon dioxide are etched at equal rates with the main etchant.