baber/WOPTO huggingface dataset:
Patent GB-1060888-A (GB)
Title: A gimp device in buttonhole sewing and cutting automatic machines
IPC: D05B3/10
Filed: 1965-08-26
Abstract: 1,060,888. Sewing machines. DURKOPPWERKE A. G. Aug. 26, 1965 [Aug. 26, 1964], No. 36708/65. Heading DIG. A buttonhole sewing machine comprises draw-off means for cord, actuated during an initial inoperative part of the movement of a machine-starting member, and a cord clamp situated adjacent the stitching point, said clamp being closed during actuation of the machinestarting member, and being opened after starting of the machine. A lever "17", Fig. 2 not shown, on depression to start the machine, raises a bar "22" disposed under cord "G" passing between a pair of eyes "28", "29", to drawoff a length of cord for incorporation in the neat buttonhole. A plate 33, pivoted to the lower member 3 of the work-feeding clamp, has an arm 36 disposed in a notch 43 in a lever 44 pivoted at 45 to member 3. A lever 49, pivoted at 50 to a fixed member 48, carries on one arm 49"' a pin 58 which projects through member 48 and supports a compression spring 58 biasing the head of a stop screw 53, which is fixed to arm 49"' and passes through member 48, against the latter. The other arms 49" is formed with a cam surface 49' which is engaged by a roller 52 on lever 44, when the machine is stationery, whereby plate 33 is pivoted downwards to clamp the cord G between an arm 35, Fig. 2. on plate 33 and member 3. A spring-biased pin 65, carried by lever 44, thereupon swings a lever 62, pivoted at 63 to member 3, for engaging a nose 64 on lever 62 with a nose 44' on lever 44 to hold plate 33 in the clamping position. Initial movement of lever 17 draws off cord, and final movement engages a clutch "13", Fig. 2, to start the machine. The work feed clamp then moves forwords with the free end of the cord "G" clamped by plate 33, until a roller 60 on lever 62 engages a cam 47 to disengage nose 64 from nose 44' to release the cord. The position of cam 47 is adjustable by manual rotation of a screw 70. The cord clamp can be opened, when the machine is stationary, by pivoting lever 49 by means of a handle 59, when surface 49' moves away from roller 52, and pin 56 pivots lever 62.
Patent GB-819461-A (GB)
Title: Improvements in or relating to timepieces (e.g. motor vehicle clocks)
IPC: G04B5/14
Filed: 1955-12-21
Abstract: 819,461. Clocks. HOF, E., and SASSELLA, C. E. A. Dec. 21, 1955 (Sept. 7, 1955], No. 36710/55. Class 139 A self winding clock is mounted on a vehicle steering wheel. The oscillatory weight 3, Fig. 1, is connected by a screw 6, Fig. 2, to a pin 5 which is mounted by a ball bearing 8 on a plate 2 of the clock frame. An eccentric pin 9 extends from the pin 5 and is connected to a rocker 10, Fig. 4, which by means of a slot 19 embraces a shaft 21 on which is mounted a ratchet wheel 18. The rocker 10 carries two pairs of pawls 11, 12 and 13, 14 spring pressed into engagement with the ratchet 18 so that as the rocker is moved upon rotation of the weight 3 at least one of the pawls 11-14 steps-on the ratchet 18 which is connected to the barrel arbor 25, Fig. 2, through gears 23, 24. To prevent overwinding of the mainspring a friction clutch may be inserted between the ratchet 18 and the gear 23. Specification 819,462 is referred to.
Patent GB-804287-A (GB)
Title: Aeronautical propeller blades and method of making the same
IPC: B64C11/20
Filed: 1955-12-22
Abstract: A nickel-plated aluminium propeller blade comprises a layer of rubber-like material between the body and the nickel plating, the layer consisting of laminations of adhesives, the innermost lamination being an adhesive inhibitive to corrosion, e.g. through containing zinc chromate, the second an adhesive particularly adapted for bonding rubber-like materials, the third a resilient rubber-like adhesive, the fourth a bonding adhesive for rubber-like materials and the outermost a rubber-like adhesive containing an electro-conductive carbon black in colloidal dispersion.  The first adhesive layer, between 0.0001 and 0.001 inch thick, contains about 20 per cent by weight of zinc chromate, the second and fourth consist of a mixture of chlorinated rubber with or without a chloroprene adhesive, their thicknesses being between 0.0002 and 0.002 inch, and the resilient lamination comprises several layers of a chloroprene adhesive-catalyst.  This lamination is not less than 0.0005 inch and not more than 0.005 inch thick.  Between the applications of the laminations, the blade may be dried and after the adhesive-catalyst layer the drying may be accompanied by heating to not more than 190 DEG  F.
Patent GB-882851-A (GB)
Title: Degrees of arc counter
IPC: A01G13/10
Filed: 1959-10-30
Abstract: 882,851. Counting-apparatus; transfer mechanisms. GENERAL PRECISION Inc. Oct. 30, 1959 [Dec. 4, 1958], No. 36881/59. Class 106(1). A mechanical counter for registering in degrees of arc changes directly from an indication of 359 or 359.9 to zero. As described, a counter comprises a hundreds wheel 28, a tens wheel 22, a units wheel 20 and a tenths wheel 17. An input shaft 15 is rotated and drives the tenths wheel 17 via gears 33, 34. Transfer to the units wheel 20 is by a Geneva mechanism comprising a transfer pin 40, Fig. 3, on the tenths wheel 17 and Geneva wheel 37 freely mounted on the shaft 15, the Geneva wheel having six radial slots 39 for co-operation with the transfer pin 40 and driving the units wheel 20 via gears 41, 43. The units wheel 20 drives a transfer pinion 45 which instead of driving the tens wheel 22 directly, drives, via gearing 54, 56, 61, an intermittent locking sleeve 57 freely mounted on the shaft 15. The sleeve 57 controls both the tens and the hundreds denominations and is rotated through 10 degrees after each complete revolution of the units wheel 20. The sleeve 57 carries mutilated gears 62, 67, the gear 62 having a toothed 300 degrees portion and a recessed 60 degrees portion and driving a pinion 65 integral with the tens wheel 22, and the gear 67 having an 80 degrees toothed portion and two single teeth each situated 90 degrees away from the toothed portion, the remaining portions of the wheel being recessed. The gear 67 drives a pinion 66 integral with the hundreds wheel 28 and a 180 degrees tens rim 25 bearing the numerals 1-5 which obscures the tens wheel when the counter registers 310 to 359.9, the hundreds wheel 28 having the digit " 3 " repeated six times. The relative position of the toothed portions of the gears 62, 67 is such that the tens wheel 22 is stationary when the tens rim 25 and hundreds wheel are driven together with the tens rim visible. A modification is described in which the tenths wheel is dispensed with.
Patent GB-445313-A (GB)
Title: Improvements in or relating to short-wave radio systems
IPC: H03F3/28
Filed: 1934-12-24
Abstract: 445,313. Valve amplifying and generating circuits. WHITE, G. W., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Dec. 24, 1934, No. 36943. [Class 40 (v)] A push-pull valve circuit for amplifying or generating short waves has the grid and cathode terminals of the respective valves connected to the grid coil by separate feeder-pairs which are matched to the input impedances of the valves. The coil 5 of the tuned grid circuit 5, 6 is tapped and one pair of taps is connected by a two-wire feeder 7 to the grid and cathode terminals of the valve 1, and another pair of taps is connected by a two-wire feeder 8 to the other valve 2. Block condensers 9 may be connected in series in the feeder wires, and the wires may be bridged by leak resistances. The feeders may be inductively coupled to the coil 5, or to coils connected across the grids and cathodes. The feeders may form Lecher wires giving voltage anti-nodes at the valves. The object of the invention is to maintain accurate balance in the circuit, which is liable to be upset by the inductance of the cathode lead 10 when the grid circuit is returned to an intermediate point of this lead.
Patent GB-1108741-A (GB)
Title: Improvements in and relating to epitaxial layers of semiconductor materials
Inventor: NEWMAN RONALD CHARLES
IPC: C30B19/04
Filed: 1963-09-19
Abstract: <PICT:1108741/C6-C7/1> A method of producing an epitaxial layer of semi-conductor material on a semi-conductor substrate comprises bringing vaporized semi-conductor material into contact with a liquid phase region, produced by alloying the substrate material with a metal on a face of the substrate, so that semi-conductor material is deposited from the region.  Si, Ge or Ge-Si alloy is deposited on one of these materials alloyed with Au, Ag, Cu, Al, or Sb.  In a chamber 3 under a vacuum of e.g. 10-5mm Hg a cleaned Si wafer 1 is heated to 500-600 DEG C. by an electric heater 7 and gold from a boat 6 evaporated to form a 100<\>rA thick layer on the lower face 4 of the wafer, which at this temperature forms a liquid phase alloy.  The wafer is raised to 1208 DEG C. and silicon 5 evaporated by electron beam heating by a gun 8 on to the liquid phase surface.  The Si is incorporated into the region and is deposited therefrom on to the substrate.  The wafer is cooled and the liquid phase region crystallizes and may be removed by lapping or etching with a mixture of nitric and hydrofluoric acids. Alternatively the Si vapour may be thermally precipitated from SiCl2 under a reducing atmosphere. The epitaxial layer may be doped by evaporating an impurity simultaneously with the coating material.ALSO:<PICT:1108741/C1/1> A method of producing an epitaxial layer of silicon on a silicon substrate comprises bringing vaporized silicon or compound thereof into contact with a liquid phase region produced by alloying the silicon substrate with a metal on a face of the substrate, so that silicon is deposited from the region.  The Si, may be alloyed with Au, Ag, Cu, Al, or Sb.  In a chamber 3 under a vacuum of e.g. 10-5 mm. Hg a cleaned Si wafer 1 is heated to 500-600 DEG  C. by an electric heater 7 and gold from boat 6 evaporated to form a 100<\>rA thick layer on the lower face 4 of the wafer, which at this temperature forms a liquid phase alloy.  The wafer is raised to 1208 DEG C. and silicon 5 evaporated by electron beam heating by a gun 8 on to the liquid phase surface.  The Si is incorporated into the region and is deposited therefrom on to the substrate.  The wafer is cooled and the liquid phase region crystallizes and may be removed by lapping or etching with a mixture of nitric and hydrofluoric acids. Alternatively the Si vapour may be thermally precipitated from SiCl2 under a reducing atmosphere.  The epitaxial layer may be doped by evaporating an impurity simultaneously with the coating material.
Patent GB-392857-A (GB)
Title: Improvements in or relating to brushes for vacuum cleaners
IPC: A47L9/06
Filed: 1932-12-31
Abstract: 392,857. Brushes. KULLEN, P. and KULLEN, E., (trading as WœRTT BURSTEN-UND PINSEL-FABRIK KULLEN & CO.), 86, Lederstrasse, Reutlingen, Germany. Dec. 31, 1932, No. 36996. Convention date, Aug. 23. [Class 19.] A brush for the nozzle of a vacuum cleaner consists of an endless band or ring of bristles d secured between opposite flanges of a metal holder b shaped to fit the nozzle, the inner flange being slightly curved and resilient to slip on to a bead on the nozzle, and a resilient packing - ring c being attached to the holder.
Patent GB-869919-A (GB)
Title: Improvements in or relating to road vehicle registration number plates and other sign plates
Inventor: BLUEMEL FRANK WILLIAM
IPC: G09F21/04
Filed: 1956-12-05
Abstract: 869,919. Number plates. BLUEMEL BROS. Ltd. Dec. 4, 1957 [Dec. 5, 1956], No. 37120/56. Addition to 797,691. Class 3(2) In a modification of the invention claimed in the parent Specification the digit carrying members 10 are each secured to the backing plate by screw-threaded studs or bendable lugs 11 as opposed to rivets.
Patent GB-796769-A (GB)
Title: Manufacture of 4-pregnene-17ª‡,21-diol-20-ones
IPC: C12P33/00
Filed: 1955-11-10
Abstract: 4 - Pregnene - 17a ,21 - diol - 3,20 - diones of the general formula: <FORM:0796769/IV (b)/1> wherein Y represents O or H2 and Z represents O, H(OH) or H2, are prepared by subjecting 5 - pregnene - 3,17a ,21 - triol - 20 - ones and lower aliphatic esters thereof of the general formula: <FORM:0796769/IV (b)/2> wherein Y and Z have the above significance and the R's represent hydrogen or the same or different acyl groups containing less than 6 carbon atoms to the action of oxidizing substances produced by growing a culture of Flavobacterium dehydrogenous var. hydrolyticum.  Thus D 4 - pregnene - 17a ,21 - diol - 3,20 - dione may be prepared from a mono-, di- or tri-ester of a 5-pregnene reactant of the above general formula in which Y and Z each represent H2 or from the free triol itself.  Similarly, 4-pregnene - 17a ,21 - diol - 3,11,20 - trione and 4 - pregnene - 17a ,21 - diol - 3,12,20 - trione may be prepared from 5-pregnene-3,17a ,21-triol - 11,20 - dione and 5 - pregnene - 3,17a ,21-triol-12,20-dione respectively or the mono-, di- or tri-esters thereof.  In the examples D 4-pregnene - 11a ,21 - diol - 3,20 - dione is prepared.  Specification 796,768 is referred to.
Patent GB-1414452-A (GB)
Title: Process for the manufacture of cyclohexadienes
IPC: C07C67/00
Filed: 1974-08-23
Abstract: 1414452 Cyclohexadienes F HOFFMANNLA ROCHE & CO AG 23 Aug 1974 [24 Aug 1973] 37140/74 Heading C2C Compounds of the formula where X is COCH 3  or COOR, where R, is a C 1  to C 6  alkyl group and the broken lines denote two double-bonds either in the 1- and 3-positions or in the 2- and 4-positions are prepared by heating a compound of the formula in the presence of an organic solvent.
Patent GB-1243887-A (GB)
Title: A mixing device for mixing two media with greatly different temperatures
Inventor: GASSELT MAX L G VAN
IPC: G21C1/02
Filed: 1969-07-28
Abstract: 1,243,887. Mixing apparatus. NERATDOM N.V. 28 July, 1969 [26 July, 1968], No. 37688/69. Heading B1C. Apparatus for mixing hot and cold streams of liquid sodium together comprises a housing 6, a perforated tube 7 located concentrically within the housing, pipes 2 and 3 for introducing hot and cold streams of liquid sodium into the perforated tube, pipe 2 being provided with a constricted end portion 8 the diameter of which at its widest end is not greater than the diameter of tube 7, and a pipe 4 for discharge of the mixed streams. In use, the hot stream flows axially through tube 7 and the cold stream flows transversely from the annular space 5 through the perforations in tube 7 into the hot stream to be mixed therewith. Tube 7 may be doublewalled and freely supported between flanges 25, 26 to permit limited movement thereof. The end portions of pipes 2, 4 may be surrounded by annular spaces 17, 18 which are in communication with the annular space 5 and the interior of the pipes. The apparatus is designed inter alia to prevent the walls of the housing 6 from being subjected to thermal shock stresses which could arise if they were subjected to rapid variations in temperature through alternate contact with hot and cold liquid sodium.
Patent GB-1175027-A (GB)
Title: Process for the treatment of polyester fibre materials
Inventor: BOEHMKE GUNTER
IPC: D06M101/16
Filed: 1968-08-07
Abstract: 1,175,027. Alkylene oxide/fat reaction products. FARBENFABRIKEN BAYER A.G. 7 Aug., 1968 [10 Aug., 1967], No. 37704/68. Heading C2C. [Also in Divisions C3 and D1] Compounds used in the treatment of polyester fibres are prepared by reacting 17À5 parts of ethylene oxide with 20 parts of coconut oil, 35 parts of ethylene oxide with 20 parts of coconut oil, 9 parts of ethylene oxide with 20 parts of soya bean oil or 29 parts of ethylene oxide with 20 parts of soya bean oil in the presence of potassium tetraethylene glycolate, 23 parts of propylene oxide with 20 parts of coconut oil, or 20 parts of ethylene oxide with 20 parts of soya bean oil in the presence of potassium propylene or ethylene glycolate, or 14À5 parts of propylene oxide with 20 parts of castor oil or 20 parts of ethylene oxide with 20 parts of castor oil in the presence of potassium hydroxide.
Patent GB-1260766-A (GB)
Title: Beverage composition
IPC: H04M1/23
Filed: 1969-11-21
Abstract: 1,260,766. Impulse generators. PLESSEY CO. Ltd. 16 Sept., 1970 [21 Nov., 1969], No. 57097/69. Heading H4K. [Also in Divisions G2-G3] A telephone dial comprises a body of plastics material including a disc 2 with a central boss having a coaxial through bore holding the dial shaft which carries at one end a gear-wheel 20 and finger plate mounting boss 21 and at the other end an interruption cam 24. Co-operating with cam 24 are springsets 48, 49 which are mounted in slits in parallel walls 10, 11 made integral with disc 2. Each springset has a contact socket 50 which is engaged by pins (54) in a cover (52) which is seated on back wall 5. Gear-wheel 20 drives governor 29 through the arrangement shown in Specification 1,173,546 and the governor housing 31 is integral with plate 32 mounted on walls 8, 9 extending from front wall 3. A slider which fits around and can be slid along the arms of the governor allows the return speed of the dial to be adjusted. A number plate (34) is secured to the front wall by plastics pins which pass through holes in the number plate and are a push fit in holes 12, 13 in disc 2. Boss 21 extends through the number plate and has a conventional finger plate attached to it by a screw engaging bore 23. A finger stop 33 is engaged in a buttress 15 in the front wall 3.
Patent GB-1244334-A (GB)
Title: Production of silica sols
Inventor: CUMMINGS WILLIAM
IPC: C01B33/146
Filed: 1968-08-08
Abstract: 1,244,334. Silica sols. MONSANTO CHEMICALS Ltd. 14 July, 1969 [8 Aug., 1968], No. 37837/68. Addition to 1,143,019. Heading C1A. A silica aquasol in which the silica particles have a dissymmetry diameter greater than 500  is made by adding aqueous silicic acid (pH less than 7À0) to a heated vessel containing as a heel an aqueous alkali metal silicate solution having an initial concentration of 2À5-10% by wt. as SiO 2 , the amount of silicic acid added being such that the molar ratio of SiO 2  added as silicic acid to the M 2 O content (M is alkali metal) of the alkali metal silicate is at least 25:1. Water may be evaporated from the vessel during the addition of at least part of the silicic acid. The heel may also contain preformed colloidal silica particles provided that the molar ratio of overall SiO 2  to M 2 0 in the initial heel is less than 5:1 (where M is alkali metal). The molar ratio SiO 2 : M 2 O in the silicate may be e.g. 1:1 to 4À5:1. The contents of the vessel are normally maintained at or near their boiling point, e.g. 90 C. during the silicic acid addition, and the rates of addition and evaporation are preferably such that the content of silicate in solution in the vessel does not fall below 2À5% by wt. (as SiO 2 ) until the molar ratio of SiO 2  added: M 2 0 is at least 20:1. Sols containing up to 65% by wt. of SiO 2  may be made in one stage or in more thanone stage by evaporating water from a dilute sol (e.g. 5-7%) with no further addition of silicic acid. The product may be fractionated by centrifugation or by decanting supernatent sol from a sediment of larger particles deposited on standing.
Patent GB-1497170-A (GB)
Title: Pivotal connections
IPC: E05B65/20
Filed: 1975-09-16
Abstract: 1497170 Pivots WILMOT-BREEDEN Ltd 1 Sept 1976 [16 Sept 1975] 37908/75 Heading E2F [Also in Division F2] To provide an anti-rattle pivotal connection between a motor-vehicle door latch operating lever 10 and the cranked end 18 of a rod 13, the lever 10 is of moulded plastics having a pivotal connecting key-shaped hole 11, 12 which is formed with an integral resilient tang 14 and in which the cranked rod end 18 is pivotally mounted such that the rod 13, 18 is retained i.e. biased by the tang 14 against the opposite wall of the hole 11 in an anti-vibration rattle free manner.
Patent GB-985263-A (GB)
Title: Improvements relating to apparatus for supporting bobbins in textile machinery
IPC: G09B17/00
Filed: 1963-09-26
Abstract: 985, 263. Bobbin cradle for yarn winding machines. THERMIGUIDES S. A., and P. C. EPPENDAHL. Sept. 26,1963 [Sept. 27,1962], No. 37992/63. Heading D1J. A cradle for a bobbin 3 has spaced arms 2a, 2b that extend from a body 2 rotatable on a shaft 5, there being frictional damping means 9 within the body 2. The damping means shown is a spring disc 9 between friction discs 8. A castellated nut 13 in the body 2 compresses the disc 9, the nut 13 being locked in position by a screw 10, Fig. 2, (not shown) coacting with one of the serrations of the nut. To permit the bobbin to be held in a raised inoperative position the arm 2a carries a spring biased pin 16 that enters a slot in a collar 11 when the arm 2a has been raised sufficiently. The collar 11 is secured to the shaft 5 by grub screws 12. A manually operable plate 25, controlling a two armed lever 24, is provided for releasing the pin 16 from the slot in the collar.
Patent GB-863633-A (GB)
Title: Improvements in or relating to mounting arrangements for electrical components
Inventor: READ CHRISTOPHER JOHN
IPC: H05K7/12
Filed: 1958-11-26
Abstract: 863,633. Transistors. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Oct. 28,1959 [Nov. 26, 1958], No. 38027/58. Class 37. A mounting arrangement for enabling an electrical component 13 having its terminal wires 15 emerging from one end only to be mounted perpendicularly with respect to a component mounting plate, e.g. a printed circuit board, comprises a tube 10 of insulating material arranged to house the body of the electrical component with the terminal wires emerging from one end of the tube and provided at the other end with a base formed by an external flange portion 11 which acts as guiding means for the free ends of the terminal wires so that they protrude from the base for perpendicular connection of the arrangement to the component mounting plate. As described, the electrical component 13 is a transistor and the tube 10 is of moulded nylon and is tapered internally to enable transistors of different diameters to be wedged firmly therein, air escaping through a hole 14. The leads 15 pass through holes 17 in the flange 11 and are held in position by a nylon ring 18 wedged on the externally tapered surface of the tube 10. An annular channel 21 in the flange 11 prevents the formation of a moisture trap, and the ring 18 is provided with recesses on its inner surface to prevent the formation of a continuous moisture path.
Patent GB-941549-A (GB)
IPC: B41M5/10
Filed: 1959-11-10
Abstract: 941,549. Synthetic resin compositions. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Ltd. Nov. 10, 1959, No. 38029/59. Heading C3P. [Also in Division D2] A composition for use in making a pressuresensitive transfer sheet (see Division D2) comprises a synthetic resin, a liquid that is non- volatile, non-drying and non-solvent for the synthetic resin and an imaging material in a volatile solvent for the synthetic resin. In the examples, the solvent is always a mixture of toluol and ethyl acetate, and the other components are: (I) vinyl chloride-acetate copolymer, mineral oil and alkali blue; (II) vinyl chlorideacetate copolymer, mineral oil, butyl stearate, carbon black and alkali blue; (III) polyvinyl butyral, lanolin, mineral oil and alkali blue; (IV) polyvinyl butyral, mineral oil, butyl stearate, carbon black and alkali blue; (V) polyvinyl acetate, lanolin, mineral oil and alkali blue; (VI) polyvinylacetate, oleic acid, carbon black and alkali blue; (VII) vinyl chlorideacetate copolymer, petrolatum, refined rapeseed oil and alkali blue; (VIII) vinyl chloride-acetate copolymer, hydrogenated cottonseed oil, mineral oil and alkali blue; and (IX) vinyl chlorideacetate copolymer, lanolin, carbon black and alkali blue.