baber/WOPTO huggingface dataset:
Patent GB-909158-A (GB)
Title: Storage electrode
IPC: H01J29/41
Filed: 1959-03-09
Abstract: 909,158. Charge storage electrodes. RADIO CORPORATION OF AMERICA. March 9, 1959 [March 17, 1958], No. 8129/59. Class 39 (1). A storage electrode is made by forming an insulating oxide film 12 on a sheet of a first metal 10, forming a substantially uniformly apertured protective coating 14 over the film 12, dissolving away portions of the oxide film which are exposed by the apertures 16 to uncover corresponding portions of the sheet 10, filling in these dissolved-away portions with a second metal 20 and removing the sheet 10. The protective coating 14 may also be removed. The first metal may be titanium manganese zirconium or aluminium and the second, copper silver, iron, gold or nickel. The coating 14 may be formed by using a photo-sensitive resist or by depositing a metallic sulphide through a wire grill.
Patent GB-576428-A (GB)
Title: Improvements in and relating to bearings for shafts, spindles and the like
IPC: B23Q1/26
Filed: 1944-05-01
Abstract: 576,428. Shaft couplings. JEARUM, F. C. May 1, 1944, No. 8166. [Class 80 (ii)] [Also in Groups XXII and XXXIV] A shaft bearing; such as for a shaft 4 on which is mounted the quill of a precision diamond-tool boring machine, comprises a thin distortable sleeve 17 surrounding the shaft and enclosed by a contractable member 14 which has a taper exterior engaging a correspondingly internally tapered housing 10 whereby on relative displacement of the housing 10 over the contractable member 14, this latter having its inner bore shaped to provide three longitudinal shallow crescent section grooves, the distortable sleeve 17 is caused to bear on the shaft along three longitudinal contact lines and so to provide therebetween shallow crescent-section grooves for oil-film lubrication. Two such bearings with contractable members 14, 14a and distortable sleeves 17, 17a and spaced by a distance sleeve 24 are housed in a liner 5 inserted in the main support casting 1. The shaft is driven from a sleeve pulley 31 mounted on a detachable end cap 29 of the main support casting 1, the pulley sleeve 30'being mounted by a similar distortable sleeve 17b and contractable member 14b on an extension from the end cap and being connected by a key with an inner spindle 27 which drives the shaft 4 through a clutch comprising a rubber annulus 34 which is expanded into engagement with a member 37 on the shaft 4; the expansion of the rubber annulus 34 which is mounted in a cylindrical member 32 secured to the spindle 27 is effected by adjustment of a cup member 35 within such cylindrical member 32 by means of a plunger 38 extending through the spindle 27 and screw threaded at its outer end 39. This drive arrangement prevents belt pulley vibration being transmitted to the boring quill. Specification 458,194, [Group XXII], is referred to.
Patent GB-543143-A (GB)
Title: A new or improved mixture for the manufacture of hard rubber and articles made therefrom
IPC: A42B3/06
Filed: 1940-05-07
Abstract: 543,143. Indiarubber compositions helmets. WALKER, R., OWEN, E. W. B., and MILES, Ltd., H. G. May 7, 1940, Nos. 8184 and 11546. [Class 70] [Also in Group VII] Hard rubber articles such as protective helmets are formed by moulding and vulcanizing obtained by masticating smoked rubber sheet with a woven or textile fabric which may be that contained in rubberized tyre cord or hose trimmings. The mastication reduces the fabric to fibres. Fillers, softening, compounding and vulcanizing ingredients may be incorporated. The helmets may have cushions of sponge rubber secured to the outer and inner surfaces adjacent to the edge to reduce concussion. According to the second Provisional Specification the composition may consist of rubber mixed with fibres of wool, cotton, sisal or asbestos or with synthetic fibres.
Patent GB-260482-A (GB)
Title: Improvements in or relating to apparatus for abstracting air by suction and for purifying such air
IPC: B60S1/62
Filed: 1926-03-25
Abstract: 260,482. B³hler, G. March 25, 1926. [Convention date]. Dust, preventing rising and spreading oJ. - Vacuum clean. ing - apparatus, particularly applicable for removing dust in air behind motorvehicles has a suction nozzle comprising two outwardly flared con. centric tubes b, g, air being discharged through the outer tube g so as to form a zone of compressed air of outwardly diverging conical form surrounding the entrance to the suction tube b. Air is withdrawn through the filter e by a fan a and pure air is discharged through the pipe f to a pipe r in the form of a ring whence it passes to the tube g through pipes q which enter the tube tangentially. The pipe r may be situated below the tube. the pipe q being arranged in an upward and radial direction.
Patent GB-1254596-A (GB)
Title: Cyanine dyes and photographic silver halide emulsions containing them
Inventor: MEE JOHN DAVID
IPC: G03C1/485
Filed: 1969-02-14
Abstract: 1,254,596. Cyanine dyes. EASTMAN KODAK CO. 14 Feb., 1969 [15 Feb., 1968], No. 8205/69. Heading C4P. [Also in Divisions C2 and G2] A cyanine dye comprises two N-containing heterocyclic nuclei joined by a dimethine or trimethine linkage in which the first nucleus is a pyrrolo[2,3-b]pyrazine or a pyrrolo[2,3-b]quinoxaline nucleus joined at the 3-position to the linkage and the second nucleus is (a) a heterocyclic N-containing nucleus having 5 or 6 atoms in the heterocyclic ring joined in the 2- or 4- position relative to the N atom when the linkage is a dimethine linkage or (b) a 2-arylindole, pyrrolo[2,3-6]pyrazine or pyrrolo[2,3-b]quinoxaline nucleus joined at the 3-position when the linkage is a trimethine linkage. The cyanine dye may have a dimethine linkage and the second nucleus may be a desensitizing nucleus. The dye preferably has the formula wherein L is a methine linkage, R 1  is alkyl, substituted alkyl; cycloalkyl, aralkyl, alkenyl or aryl, R 2  is alkyl or aryl, R 3  and R 4  are each H, alkyl, cycloalkyl or aryl, or, taken together, the atoms necessary to form a fused benzene ring which may bear substituents, R 5  is H or aryl, R 6  is alkyl, cycloalkyl, or aryl or a heterocyclic radical containing 5 or 6 atoms in the heterocyclic ring, the hetero atom being N, O or S, Z represents the atoms necessary to complete a heterocyclic nucleus having 5 or 6 atoms in the heterocyclic ring, D represents the atoms necessary to complete an indole, pyrrolo[2,3-b]- pyrazine or pyrrolo[2,3-b]quinoxaline nucleus, R 7  is aryl when D completes an indole nucleus or, otherwise, H or aryl, n is 0 or 1 and X is an acid anion. Z preferably represents the atoms necessary to complete a desensitizing nucleus which may be a nitrobenzothiazole, nitrobenzoxazole, nitrobenzoselenazole, nitroindole, imidazo[4,5-b]quinoxaline or 1,3,3-trialkyl-3H-pyrrolo[2,3-b]pyridine nucleus. Many examples of these dyes are given and they may be prepared in the normal manner by refluxing the reactants in acetic anhydride.
Patent GB-1502602-A (GB)
Title: Cam assembly having an adjustable control cam
IPC: F16H53/04
Filed: 1974-02-23
Abstract: 1502602 Cams CECIL INSTRUMENTS MFG Ltd 20 Feb 1975 [23 Feb 1974] 8331/74 Heading F2K  An adjustable contour face cam, for use in an error correcting system in a twin-beam spectrophotometer 1, comprises a cam track 28 formed by a flexible conduit which is constructed as a close-wound helix of spring steel wire or strip, the flexible cam track 28 being supported at intermediate points between its ends, along its peripheral length, by carriers 30, 31 adjustably positioned on screws 32 on a cam plate 29 to vary the contour of the cam track 28. The cam track 28 is engaged by a cam follower 26, having a square profile with rounded corners, carried at one end of a lever 20 pivoted at 15 and operating at its other end a potentiometer 17 which balances the two outputs of the spectrophotometer.
Patent GB-492664-A (GB)
Title: Improvements relating to the application of microphones to masks for protection against gases
IPC: A62B18/08
Filed: 1937-03-23
Abstract: 492,664. Supporting telephone transmitters. SOC. D'ETUDES ET D'APPLICATIONS INDUSTRIELLES ET COMMERCIALES. March 23, 1937, No. 8506. Convention date, March 23, 1936. [Class 40 (iv)] [Also in Group VI] A microphone is adapted to be readily applicable to or detachable from a mask for protection against gases by means of spring clips c or equivalent rapid clamping means attached to the microphone b and adapted to engage with a valve a of the mask, the microphone being also provided with a socket d, d<1> for electrical connection.
Patent GB-232579-A (GB)
Title: Improvements in or relating to service restoring systems
IPC: H02H3/06
Filed: 1925-03-31
Abstract: 232,579. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Wensley, R. J.). April 21, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Cut-out arrangements.-Where a direct-current stub-end circuit, such as 5, is disconnected from its supply, such as 1, on overload conditions occurring, restoration is effected when the resistance of the circuit 5 has reached a predetermined value or when its resistance has a given ratio to the voltage of the supply. On overload, the coil 3 breaks at 7 the circuit of the coil 6 of the circuit-breaker 2, which then opens, but, the coil 10 then being de-energized, a fresh circuit for the coil 6 is prepared, after a time-lag due to the dash-pot 13, over the contacts 12. The circuit 5 is the fourth arm of a Wheatstone bridge, the other three being 20, 21 and 22, with the result that when the resistance of 5 becomes normal again, a current will flow between the points 17, 18 of the bridge, i.e. through the coil 16, and complete at 14 the circuit for the closing coil 6 for the breaker 2. If desired, a coil 23 can be provided subject to the voltage of the source and so coupled with the core of the coil 16 as to prevent the contacts 14 being bridged till there is the desired ratio between the supply voltage and the distribution resistance.
Patent GB-703368-A (GB)
Title: Improvements in or relating to copying machines employing a master and guide to control relative movements of a workpiece and tool
Inventor: WHITEHEAD FREDERICK WILLIAM
IPC: B44B1/02
Filed: 1951-04-12
Abstract: 703,368. Copy-milling or planing. BRISTOL AEROPLANE CO., Ltd. April 2, 1952 [April 12, 1951 ; Nov. 16, 1951], Nos. 8587/51 and 27002/51. Class 83 (3). [Also in Group XXIII] In a copy-milling, - planing or -grinding machine, particularly for forming turbine or compressor blades, the pattern 14 and work 15 are mounted for simultaneous oscillation about parallel axes y in a member 13 which is traversable on the machine base 10 in the direction of the axes y and is pivoted about an axis x normal to the axes y, a spring or springs 43 causing the pattern and work to be maintained in contact with a tracer 20 and tool 26 on the base 10. The workholder and pattern-holder shafts 30 are oscillated by a pneumatic or other fluid-operated jack 36 coupled to them by levers 34 and an adjustable rod, and the lever on the pattern-holder shaft carries a pair, of adjustable dogs 38 which operate a switch 42 controlling a solenoidoperated valve for reversing the air supply to the jack. Depth of cut is determined by adjusting the tracer 20 laterally so that the tool engages the work before the tracer engages the pattern. During setting-up of the machine, the member 13 may be tilted to disengage the tool and work by releasing the tension on the spring 43 oi by a spring plunger which tilts the member downwardly. For cutting convex surfaces with a milling cutter, the cutter has an external radius not greater than the minimum radius of curvature of the surface and, for convex surfaces, the cutter may be an annular ring with internal teeth having a cutting radius not less than the maximum radius of curvature of the convex surface. If the annular cutter is used, the tracer is a similar annular ring. In a modification shown in Fig. 7, the member 13 is pivotable by springs about a horizontal axis h and is mounted on a counter-balanced frame 67 which is raised or lowered to provide the traverse. A set of three workholders is provided on each side of a central pattern 55 and corresponding tools 85 are driven by belts from a motor 61. A common shaft oscillated by an adjustable crank from a motor 74 is connected by bevel gearing to the pattern-holder and workholder shafts. For disengaging the tools and work, a pneumatic jack 87 is provided and is controlled by a lever 91 and valve 90.
Patent GB-991773-A (GB)
Title: Machine for producing armoured hoses, particularly high-pressure hoses
IPC: B65H81/08
Filed: 1962-03-06
Abstract: 991,773. Reinforced hoses. C. OSTERMANN, and M. OSTERMANN, [trading as W. & M. OSTERMANN [firm of]]. March 6, 1962 [March 14, 1961], No. 8657/62. Heading F2P. [Also in Division B3] A machine for producing armoured hoses, particularly high-pressure hoses, the armouring of which consists of continuous windings of permanently deformable strands, such as wires and tapes, comprises an extractor for non- rotatingly guiding and extracting a hose to be armoured, at least one rotatable member for winding the strands around said hose, and a deforming device for each armoured layer associated with said rotatable member and having at least two adjustably spaced ring- shaped deforming members, said deforming device being adapted to permanently deform the strands just before having been wound on to the hose while passing over said ring-shaped deforming members. A rubber hose to be armoured is drawn, on a mandrel through rotating winding heads 30 by endlels belt means 31. Each winding head 30 includes a plate 41 carrying sets of bobbins 37 from which wires 36 pass over rollers 38 and ring-shaped deforming members 40, 40<SP>1</SP> carried by the plate 41 and then through holes 60 arranged in two concentric circles in a disc 39, carried by the plate 41, to be wound on to the hose as the latter passes through the winding head. In a modification, Fig. 3 (not shown), the ring members 40, 40<SP>1</SP> are mounted so as not to rotate and the disc 39 is rotated by the wires passing therethrough or by belt and pulley means. In another modification, Fig. 4 (not shown), the rings 40, 40<SP>1</SP> do not rotate and the disc 39 is carried by the plate 41 so that the wires pass through the holes 60 therein before engaging the rings 40, 40<SP>1</SP>. In a further modification, Fig. 5, wires 23 from bobbins on a winding plate 18 pass through holes 22 in a rotary guide disc 21 over the end 26 of a tube 19 and end 27 of a tubular member 16 to be wound on a hose 24 pulled through these members, a tube 28 guiding the wires and the hose. Wires or tapes of synthetic plastic material or metal may be wound. The edges of the deforming members may be electrically heated for use with thermoplastic material. Specification 848,524 is referred to.
Patent GB-419195-A (GB)
Title: A new or improved thermometer or thermal electric switch
IPC: G01K5/16
Filed: 1934-03-20
Abstract: 419,195. Mercury switches ; thermometers. DENNIS, J. A. G., 225, Birchfield Road, and ALGAR, J., 24, Towcester Road, both in Northampton. March 20, 1934, No. 8697. [Class 38 (v).] A temperature indicator which may also constitute a thermal switch comprises a closed tube containing at one end a small quantity of control liquid or substance 6 which vaporizes when a predetermined temperature is reached and displaces a column 4 of mercury or other liquid towards the other end of the tube. Air or gas 7 contained in this other end serves as a buffer to this movement and the initial pressure of this air or gas which may be atmospheric or above or below atmospheric determines the pressure exerted on the liquid 6 and therefore the temperature at which it becomes converted into vapour. In the form shown contacts normally dip into the mercury column, circuit between them being broken when the column is displaced, and a mass 5 of wax is arranged between the mercury and the liquid 6. This wax melts before the predetermined temperature is reached and serves both to prevent accidental displacement of the liquid 6 and to quench the spark at break. In modifications, the tube is of metal and there is only one contact 8, and circuit may be made instead of broken, by placing the contact or contacts in the space 7.
Patent GB-576887-A (GB)
Title: Improvements in riveting machines
IPC: B21J15/20
Filed: 1944-05-08
Abstract: 576,887. Riveting. FORD MOTOR CO., Ltd. May 8, 1944, No. 8718. Convention date, March 29, 1943. [Class 83 (iv)] A riveting-machine has two spaced riveting- heads, the distance between which is adjusted automatically according to the width of work between them. The machine is particularly suitable for use on aeroplane wing spars in which a web plate 11 of varying width has angle bars 12, 13 riveted along each edge. The parts with rivets inserted are guided by a fixed anvil 59 in conjunction with a roller 37. A roller 36 on a switch 35 contacts the other edge and controls a motor driving screws 27, 28 to traverse a movable riveting-head and anvil 29 in accordance with the width of the. spar. Lugs 42 on the riveting-heads are guided on bars 43 carried by the frame and the heads are actuated by hydraulic rams 58. The work is supported on rollers 44 to permit movement over the riveting-punches 45. Clamping plates 21 held in advance of the punches by springs 48 also act through rods 49 to operate stroke limit switches carried by plates 53 adjustably mounted on the punch heads.
Patent GB-118582-A (GB)
Title: Improvements in Talking Machines.
IPC: G11B33/02
Filed: 1918-05-27
Abstract: 118,582. Samuel, F., and Barnett, Samuel, & Sons. May 27,1918. Cases.-A gramophone has a downwardlydirected enclosed horn B opening opposite a soundreflector F formed in a drawer E sliding in the base of the cabinet. The drawer E carries a curved reflecting-plate F bounded by tapering side walls G, and is fitted with rollers H which slide on fixed rails C when the drawer is actuated by a lever I or other means. The front of the cabinet A may be provided with doors N. The full volume of sound is obtained by sliding out the drawer to the position shown in Fig. 3.
Patent GB-564779-A (GB)
Title: Improvements in and connected with electric tumbler switches for alternating currentcircuits
IPC: H01H23/16
Filed: 1943-06-01
Abstract: 564,779. Tumbler switches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., HARRISON, B. G., and MORGAN, R. W. June 1, 1943, No. 8744. [Class 38 (v)] In order to provide a slow initial movement to a short gap followed by a rapid enlargement of the gap for isolating purposes, the bridge p of a tumbler switch having abutting contacts has abutments n adapted to .co-operate with cam surfaces i<1> on a U-shaped member 'i forming part of'the spring-toggle mechanism. The contact rocker b is pivoted to the dollypivot c and a telescopic plunger g is pivoted to a pin f between the depending arms of the dolly and surrounded by a spring h. The plunger g passes through a guide kin the member i which has stubs extending laterally into pear-shaped slots m in the limbs of the rocker. In moving from position 1 to position 2, the cam i<1> engages abutment n and remains in engagement until position 3 is reached, during which time the small gap x is slowly produced. After the dead-centre is passed, movement to position 4 causes a rapid fly-over to the chain-line position where, according to the Provisional Specification, other contacts may be engaged. A disc contact p with conical flange makes abutting contact with fixed contact q so as to avoid rubbing contacts.
Patent GB-1121636-A (GB)
Title: Improved wound healing compositions
IPC: A61K35/32
Filed: 1966-02-28
Abstract: Cartilage powder of about 40 microns average particle size or finer (for promoting healing is sterilized and/or reactivated by heating to at least 110 DEG C. (preferably 125 DEG -132 DEG ) for at least 3 hours in the absence of oxygen.  The powder may be ground or otherwise comminuted prior to heating or the grinding and heating may take place simultaneously.  Numerous types of cartilage are specified, including immature mammalian cartilage, foetal skeleton, bird, fish, crocodile and salamander cartilage and shark jaw-bone.
Patent GB-166314-A (GB)
Title: Improvements in the construction of magnetos for ignition purposes
IPC: H02K21/32
Filed: 1920-03-25
Abstract: 166,314. Smith, E. A. Layton-. March 25, 1920. Magneto-electric machines.-In a magneto the rotor of which comprises a wound armature around which are arranged arms alternately magnetically connected to the armature core, the radial portions of at least one pair of arms are formed integrally with the core, and the core and rotor arms are laminated. Fig. 6 shows a rotor core B<3> formed as an E-shaped member having arms B, B<2> and A<3>, A<4>. The latter may form part of a U-shaped member, or may be separately formed and embedded, together with the E- shaped member, in a non-magnetic casting C to which a separate end piece E<2> is fitted after the winding is inserted to complete the magnetic circuit. The circumferential spaces between the rotor arms may also be filled after the winding is inserted to complete the magnetic circuit. The circumferential spaces between the rotor arms may also be filled with moulded insulating material C, Fig. 9, strengthened by non-magnetic bars D.
Patent GB-1398956-A (GB)
Title: Ultrasonic bond controlling method and apparatus
IPC: H01L21/607
Filed: 1973-02-22
Abstract: 1398956 Welding by pressure MOTOROLA Inc 22 Feb 1973 [3 April 1972 (2)] 8771/73 Heading B3R A method of controlling a process of ultra sonic welding comprises monitoring either the voltage applied to a transducer for producing the ultrasonic vibrations or the resistance between the bonding head and the workpiece to which it is applied, the welding process being terminated upon detection of a predetermined change in one of these parameters. Ultrasonic welding apparatus for welding a wire 12 to a pad 14 on a semi-conductor chip 16 comprises a transducer 25 fed from a power supply 30 and coupled to a horn 20 which supports a bonding head in the form of a wedge 10. The voltage envelope applied to the transducer at inputs 26, 27 is monitored by a detection circuit, the dip 54, Fig. 2, which occurs when a bond is made being detected by amplitude sensor 40 and used to switch off the power supply 30. If the dip 54 is to be clearly defined the horn 20 is preferably of the form shown having successive cylindrical portions of differing radius. In an alternative embodiment (Fig. 4, not shown) a resistance measuring circuit detects an increase in resistance between the bonding head wedge and the wire when the latter is bonded to the semiconductor pad. Reference is made in connection with the prior art to bonding wires of Al or Au to bonding pads of Al or Au.