baber/WOPTO huggingface dataset:
Patent GB-203830-A (GB)
Title: Improvements in electric resistance switches
IPC: H01C10/48
Filed: 1922-07-05
Abstract: 203,830. Ward Leonard Electric Co., and Kebler, L. July 5, 1922. Regulating switches; bases; contacts. - A rheostat switch comprises the following detail improvements :- (1) A circular sheet-iron plate 1, Figs. 1 and 2, which supports a ring of stationary contacts 2 and a movable contact spindle 4, has a flanged rim fitted with screws 29 for attachment to correspondingly spaced legs 30 projecting behind a panel 31. By means of intervening iron cylinders 36, a number of such rheostat units can be mounted one behind another on the same panel. The outermost unit is covered by an iron box 37 provided with lugs 42 by which a single unit can, if desired, be mounted on the front of a panel. (6) The spindle of each unit is coupled to the next by a bendable sheet iron arm 39 having a turned out end lying in the path of the contact arm of the adjacent unit. (2) The spindle bearing-block 3 is attached to bendable sheet iron tongues 1<11>, Fig. 5, so that the spindle can be aligned at right angles to the contact surfaces. (3) The insulating contact arm 17 is attached to the spindle 4 by moulding it round a knurled end 4<1>. (4) The contact shoe 18 is of strip metal bent to fit into recesses of the arm 17 and seated on a double coiled spring 9. (5) The leading-in terminal block 22 is disposed to form a stop for the contact arm.
Patent GB-313625-A (GB)
IPC: H02K1/18
Filed: 1929-06-15
Abstract: 313,625. Associated Electrical Industries, Ltd., (Assignees of Noden, T. M.). June 16, 1928, [Convention date]. Cores.-Each lamination of the stator core of a dynamo engages with two bars attached to the frame by means of recesses in the edge of the lamination so shaped that when the lamination is sprung into place the corners of the recesses engage the bars and hold the lamination in place. In the form shown the outer corners 9 of the recesses 7 are rounded off so that the lamination can be easily placed in position when slightly bent. The inner corners 10 of the recesses pass the bars 3 when the lamination is bent but engage them as shown when it straightens. In a modification the recesses are formed in projections on the edge of the lamination.
Patent GB-293039-A (GB)
Title: Improvements in and relating to the manufacture of commutators
IPC: H01R43/06
Filed: 1928-06-26
Abstract: 293,039. International General Electric Co., Inc., (Assignees of A. E. G.-Union Elektrizicitõts Ges.). June 30, 1927, [Convention date]. Commutators are made by embedding the segments in a mould in an insulating compound consisting of fragments of paper and a resinous condensation product, such as that known under the registered Trade Mark " Bakelite," and the n subjecting the assemblage to pressure and heat. The paper is preferably in the form of narrow strips and in place of being made by special immersion in or spraying with the compound it may consist of fragments cut from the Bakelite paper waste which occurs in the manufacture of laminated varnish paper products. Fig. 1 shows the method prior to and after the closure of the pressing members on the left and right-hand sides respectively. The segments 1 and micas are assembled round a bolt 3 by means of a shrink-ring 2 and the compound is introduced between mould rings 4 and the pressing members 5. The press may be arranged so as to leave the compound projecting just beyond the end of the finished commutator, as shown on the right hand side, or so as to cover the whole of the end faces of the commutator as shown in Fig. 4. This Figure also shows the provision of dovetail grooves in the end faces to key the compound to the faces.
Patent GB-1103242-A (GB)
Title: Injection valve pressure regulator
IPC: B29C45/23
Filed: 1965-05-03
Abstract: 1,103,242. Injection nozzles. INVENTIONS FINANCE CORPORATION. 3 May, 1965 [4 May, 1964], No. 18503/65. Heading B5A. An injection nozzle 1 with associated chambers 4, 6 and a valve 9 is substantially as described in Specification 1,010,008, but is provided with a fluid-pressure operated piston 21 which holds rod 19 and hence valve 9, via linkage 14, 16, against increasing back-pressure of moulding material in chamber 4 as the injection mould is filled, and thereby prevents premature closing of nozzle passageway 13. Hydraulic fluid is admitted to cylinder 23 via coupling 31 and duct 32 at a pressure greater than the maximum back-pressure, the throw of piston 21, and hence the size of passageway 13, being determined by a ring 28 screwed on to cylinder 23 and accurately positionable by means of vernier scale 30. Cylinder 23 is provided with a curved surface 24 so that it may rock on a support 25. As the filling of the mould is completed, pressure on piston 21 is automatically released by switch mechanism associated with an injection piston (not shown) within cylinder 8, see Specification 1,075,801, and valve 9 consequently moves to close passageway 13. When the injection mould is removed a further piston 20 attached to rod 19 and situated within cylinder 21 is moved relative thereto, Fig. 3 (not shown), by admitting hydraulic fluid via coupling (33) and duct (34) to chamber (35). This movement causes projection (36) of valve 9 to close nozzle orifice 3. Fluid pressure circuits are also described, Figs. 4-6 (not shown). The application of fluid via coupling (33) may be effected by actuation of contact switches when the mould and nozzle are separated or by the increase of pressure within the nozzle due to back pressure from the filled mould.
Patent GB-530487-A (GB)
Title: Improved process and apparatus for making helical tension springs having particularly great preliminary tension
IPC: B21F3/06
Filed: 1939-06-26
Abstract: 530,487. Coiling. SCHMID, O. June 26, 1939, No. 18537. [Class 83 (iv)] Close coiled springs having initial tension are coiled in two stages. In the first stage the wire d is fed by rollers b and is bent by guides d to a larger radius than required. The wire passes directly to other abutments e that shunt the wire into a different plane as shown in Fig. 3 according to the amount of initial tension required. A shearing adjunct r, s is preferably provided. The tools d and e are adjustably mounted in slides as shown in Fig. 1 the adjustment taking place along lines passing through the point A. The tools d are mounted on a common base adjustable about trunnions l situated in the line of feed of the wire, to vary the amount of shunt. Set screws n lock the base after the adjustment. The tools e are adjustable in the direction of the axis of the coil by a screw q.
Patent GB-562512-A (GB)
Title: Improvements in or relating to multi-range high frequency systems
IPC: H03J5/24
Filed: 1942-12-30
Abstract: 562,512. Transformers. JOHNSON LABORATORIES, Inc. Dec. 30, 1942, No.' 18538. Convention date, Jan. 5, 1942. [Class 38 (ii)] [Also in Group XL] A multi-range high frequency tunable resonant circuit having an inductive winding coupled thereto and with the windings concentrically arranged is associated with a switch so that on the lower wave range the larger inductance L1 is included in the tuned circuit and the other L2 comprises a coupling coil, while on the higher wave range the inductances are connected in parallel while a tapping T1 on the inductance L2 provides the inductive coupling. Fig. 3 shows the arrangement of windings and the ferro-magnetic core F. Fig. 1 shows the application to an oscillator using separate condensers C1, C2 for the two wave-ranges. In a modification, Figs. 4 and 5 (not shown), the inductive winding is included in an aerial circuit and the resonant circuit forms an input coupling. Alternatively, the circuit may be used as an interstage coupling in which the resonant circuit forms the secondary winding and the inductive coupling the primary winding.
Patent GB-696681-A (GB)
Title: Improvements relating to electric motor control systems
Inventor: ASBURY ALLAN
IPC: B65H23/198
Filed: 1950-07-25
Abstract: 696,681. Automatic control systems. ENGLISH ELECTRIC CO., Ltd. Oct. 24, 1051 [July 25, 1950], No. 18587/50. Class 38(iv). [Also in Group XXXVII] The power input to a separately excited D.C. coiler motor, for winding material under tension, is maintained substantially constant. The coiler-motor armature 1 is connected in series with a constant speed booster 3, and the fields of the motor and. booster are regulated simultaneously by a rolling-sector type regulator 5 to maintain the product of the motor armature current and voltage substantially constant. The moving coil 5c of the regulator (responsive to motor current) is connected across a resistor 2 in the armature circuit, while the fixed coils 5d, 5e are connected across the armature and resistor 2 to give a resultant field proportional to the B.E.M.F. (volts-IR drop), the torque produced by the coils operating the regulator against an astatic spring arrangement compensating resistors 8, 10 are ganged to the supply voltage (strip speed) controller. In an alternative regulator arrangement the regulator control springs are replaced by an additional fixed and moving coil system producing a torque proportional to strip speed. In this case the compensating resistor 8 is not required. The Provisional Specification states that when the coiler motor is supplied by an individual generator, the booster effect may be incorporate in the generator by, e.g., an additional field winding.
Patent GB-402176-A (GB)
Title: A printers blanketing
IPC: B41N10/04
Filed: 1932-07-02
Abstract: 402,176. Woven fabrics containing wool and linen &c. GREAVES, G., Beechwood, Heyrod, Stalybridge, and FARRAND, T., Castle View, Staley Road, Mossley, both near Manchester. July 2, 1932, Nos. 18728 and 25754. [Class 142 (iv).] A fabric for a printer's blanket is woven from warp threads of flax, linen, or hemp, or flax or linen and hemp, and weft threads of wool, the weight of the weft being about twice the weight of the warp.
Patent GB-510755-A (GB)
Title: Improvements in travelling cases
IPC: A45C5/02
Filed: 1938-06-24
Abstract: 510,755. Travelling-cases. BROOKS & CO., Ltd., J. B., and TIPPING, W. E. June 24, 1938, No. 18728 [Class 18] [Also in Group XVI] A travelling-case the body of which is formed from plywood, fibreboard &c. lengths, and the lid of which is hinged below the back edge has the corners 8, Fig. 4, and the adjacent portions 4 of the upper margin of the body blocked under pressure with or without heat and moisture, to an inwardly sloping configuration to form a surface of contact for the edge of the lid. Endless or other metal reinforcing frames may be secured around the inner surface of the body at the top and/or bottom edge. The ends and corners of the body may be formed from two lengths of plywood &c. and these may be joined by two more lengths which overlap them. The body may be formed from a single length. A lining and a covering for the body are provided. The margin of a flat strip is first bent by two dies 2, 3, Fig. 7, the line of bending being determined by an adjustable stop 5, whereafter dies 6, 7, Fig. 9, bend the strip at right angles and press the corners inwards,
Patent GB-1224561-A (GB)
Title: Electric motor control arrangement
Inventor: GODFREY ROGER HENRY
IPC: H02P7/292
Filed: 1968-04-22
Abstract: 1,224,561. Control of D.C. motors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 April, 1968, No. 18825/68. Heading H2J. When a split-field series motor 10 is operating in the forward direction, switch 100 is closed and trigger module 60 supplies trains of pulses to a bridge comprising thyristors Th1 Th2 so as to render them alternately conductive. The speed of the motor is controlled by a pressuresensitive potentiometer 90 which has a neutral position for stopping the motor. Rectification of the supply is provided by diodes D1, D2, whilst diode D3 acts as a flywheel diode. When the motor is in reverse, the thyristors Th3, Th4, are effective. The diodes D1, D2 again act as rectifiers, whilst diode D4 becomes the freewheel diode. The potentiometer 90 may be replaced by a pressure-sensitive resistor, deceleration being effected by reversal of power. The power supply to the trigger modules 60, 70 is obtained from diode bridge 80 which also supplies a magnetic brake.
Patent GB-898390-A (GB)
Title: Racking mechanism for earth boring equipment
Inventor: KNIGHTS RICHARD NORTHAM
IPC: E21B19/15
Filed: 1959-06-02
Abstract: 898,390. Boring earth. DOWTY ROTOL Ltd. May 30, 1960 [June 2, 1959], No. 18861/59. Class 85. Pipe racking mechanism comprises a poweroperated transport arm 38 pivoted at 39 near the base of a drilling derrick 10 and having pipe gripping jaws 43 at the outer end, the arm having a vertical position in which it can accept pipe from, or deliver pipe to, the derrick, and a horizontal position in which it can deliver pipe to, or accept pipe from a station associated with storage means 92, 93. The derrick carries hydraulically operated lifts 13, 14 each working over slightly more than half the length of a pipe, and moving together for a short distance for transfer of pipe string load from one lift to the other The upper lift has a pipe joint making and breaking mechanism 16, and a spinner mechanism 19 which is axially adjustable relative the lift to remove a pipe from the string. After the pipe is removed from the string, the spinner is swung to the side, and lowered relative to the lift 13 so that the pipe takes up the position 24<SP>1</SP> to be gripped by the jaws 43. The arm is lowered to the position 38<SP>1</SP> shown in Fig. 2 where the pipe is seized by the gripping mechanism 72 of a racking linkage 61, 67 which deposits the pipe in the storage means. The racking mechanism is operated automatically in sequence with the drilling derrick mechanism, both when pulling a string and when running it in.
Patent GB-1073096-A (GB)
Title: Gripping device for lifting or hauling loads
Inventor: CROSS JOSEPH ROBERT
IPC: B66C1/62
Filed: 1965-05-05
Abstract: 1,073,096. Devices for gripping and lifting rods. W. & E. MOORE Ltd. March 1, 1966 [May 5, 1965], No. 18920/65. Heading B8H. To lift a load W, a bar 6 attached thereto is inserted through aligned holes 11 in the arms A, B of a lifting device and a pull is exerted on a ring 4. This causes the arms to pivot about a pin 1 and grip the bar. The arms comprise flat plates 7, 8 with vertical stiffeners 9, 10. Shackles are pivoted to the ends of the arms. A compression spring may be inserted between the arms to urge them about and ensure an initial grip.
Patent GB-1096943-A (GB)
Title: Solvent assisted dyeing
Inventor: LYONS JAMES RALPH
IPC: D06P1/649
Filed: 1964-05-06
Abstract: Dyeing compositions comprise an aqueous solution suspension or dispersion of a dye and a liquid organic solvent for the dye plus a solid aromatic compound dissolved therein which acts to improve the rate of uptake of dye by keratinous fibres (i.e. the compounds dissolved have melting points above the dyeing temperature).  The above compositions are employed to dye materials particularly keratinous materials by contacting the material with the composition. The solid aromatic compound is preferably present an 1-5% of the composition and contains an aromatic ring and at least one of the groups carboxylic acid, amide, or substituted amide, hydroxyl and esters thereof, nitrile, aldehyde, ketone, halogen, amine, alkoxy, cerido or an aliphatic group which is substituted by at least one hydroxy or carboxy group carboxylic acids, mono or polyhydric phenols and chlorobenzene are particularly preferred. Many liquid organic solvents are specified as ore acid, premetallised, mordant, direct, disperse, solvent and reactive dyes.
Patent GB-1023683-A (GB)
Title: A device for use in producing a block of thermo-electric elements
IPC: H01L35/06
Filed: 1963-05-13
Abstract: 1,023,683. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. May 13, 1963 [May 12, 1962], No. 18944/63. Heading H1K. A jig for the assembly of a block of seriesconnected thermo-electric elements comprises a frame which supports a lattice formed of two sets of crossed members one set being notched to engage the other set, a wall closing one face of the frame, and spaces provided between the frame and the lattice for receiving the connecting bridges of the block. As shown, Fig. 2, the lattice 8 comprises members 17 provided with notches in theirupper and lower edges to locate cross-members 15 and 16. The ends of the members engage slots in the frame 7 which is closed on the underside by a base wall 9, Fig. 3 (not shown). Conductive bridges 6 and associated solder strips 5 are placed on wall 9 between members 16 and 17 and passing under certain members 15. Thermo-electric elements 3, 4 of opposite conductivity types have their ends coated with bismuth to facilitate soldering, are placed in the openings of the lattice and are topped by solder strips 2 and conductive bridges 1. A lid 12 is attached to the frame and is provided with spring-loaded pins 11 which press the bridges 1 on to the elements 3, 4. The whole arrangement is then heated to solder the bridges to the elements. The jig is then dismantled, members 16 being formed in two parts to facilitate this, and the thermo-electric block is provided at its edges, and/or in the gaps between the elements, with an envelope of transparent plastic.
Patent GB-1071914-A (GB)
Title: Improvements in or relating to a window having a rotatable casement frame
IPC: E06B3/34
Filed: 1964-05-07
Abstract: 1,071,914. Reversible windows. GRETSCH-UNITAS G.m.b.H. May 7, 1964 [May 22, 1963; Nov. 23, 1963], No. 19015/64. Addition to 1.067.301. Heading E1J. A window with a sash 1 reversible through 180‹ into alternative closed positions in the frame 7 resilient sealing strip 4 is provided in the median plane containing the axis X of rotation, around the periphery of the sash and a stiffer strip 5, (e.g. an aluminium strip with teeth on its stem and hammered into a groove) around the inner periphery of the frame 7, so that in either of the alternative closed positions of the sash, the strips 4 and 5 abut each other and are pressed together by a window locking mechanism which comprises locking members 12 having wedge-shaped edges 21, Fig. 6 mounted on a linkage rod 16 accommodated in a rabbet in the frame 7, and located correspondingly to be opposite grooves 14 in the sash, so that when the membrs 12 protrude from the frame 7, they enter the corresponding groove 14 and urge the sash in a direction to press the strip 4 against the strip 5. The members 12 drive horizontal slots 22, cooperating with pins 23 on the mounting strips 10 and slanting slots 24 cooperating with pins 25 on the rod 16 so as this latter is pulled downwardly, the locking member is moved transversely to enter the grooves 14 which have rounded corners 15 to guide the wedge shaped ends of the members 12 thereinto. The linkage 16 may be operated by a handle on the lower horizontal bar of the sash, and the linkage is covered by a cover 11. The pivot bearing of the sash is in two parts and is described and claimed in Specification 1,071,915.
Patent GB-243285-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F39/00
Filed: 1925-07-27
Abstract: 243,285. Thompson, J. W. July 27,1925. W a s h i n g - machines with axially-moving plungers; washing-dollies.-Comprises a container 10 having a removable reticulated plate 18 spaced from the bottom and a reticulated plunger plate 19 carried by rods 25, 26 pivotally secured to a cross-member 21 connecting a pair of spaced parallel rods 14 that are pivoted at 13 to the container. The parallel rods are extended forwardly and are connected by a handle.
Patent GB-354929-A (GB)
Title: Improvements in prepayment meters
IPC: G07F15/08
Filed: 1930-06-23
Abstract: 354,929. Prepayment mechanism for meters. BRITISH INSULATED CABLES, Ltd. and WILSON, L. B., Redgate, Eccleston Park, both in Prescot, Lancashire. June 23, 1930, No. 19101. [Class 27.] Price-changing mechanism.-Wheels 17, 18, 19, in the gear train between a meter-counting spindle 4, Fig. 1, and the spindle 15 of the differential gear constitute price-change wheels and are mounted in a detachable carriage 16, which is withdrawn by a handle 26 through an aperture in the meter casing to be replaced by another carriage with a different set of wheels when the price per unit is to be changed. The carriage 16 comprises plates 22, 23 connected by pillars 24, Fig. 3, the plate 22 having a keyhole slot 27 fitting, over a screw 28 which is screwed into a back-plate 7, between which and a bar 8 the main train of wheels is carried. The screw 28 has a tapered end 30 and a threaded portion of smaller diameter than the rest to fit into the narrow portion of the slot 27. A carriage is placed in position with the screw 28 loosened, and drops until stops 31 thereon engage the top of the plate 7, the carriage being guided into position by pins 32. The screw 28 is then tightened to secure the carriage in position.
Patent GB-688857-A (GB)
Title: Improvements relating to the control of cathode ray tubes
Inventor: WHITE ROBERT CYRIL
IPC: H04N3/18
Filed: 1950-08-01
Abstract: 688,857. Cathode-ray tubes. WHITE-IBBOTSON, Ltd. July 26, 1951 (Aug. 1, 1950; Sept. 13, 1950], Nos. 19223/50 and 22556/50. Class 39(i) [Also in Group XXXV] A circuit arrangement for stabilising the focus of the electron beam of a cathode-ray tube comprises an E.H.T. generating unit of the saw tooth oscillatory type wherein potential variations in the value of the E.H.T. due to variations in the beam current of the tube are fed back from a winding S4 on the output transformer to the control grid 2 of the generating valve DV, the variations appear ing in an amplified form at the screen grid 3 of the valve DV and fed to the screen grid 4 of the focus valve FV, which has the focus coil FC in its anode circuit, thereby altering the current in the focus coil, the combination of the two feed back components being such as to keep the focus of the tube constant irrespective of variations in the beam current. Various other methods of deriving the potential applied to the valve FV are described in one of which compensation is effected for variations in the temperature-and thus the resistance-of the focus coil FC.
Patent GB-1220331-A (GB)
Title: Improvements in and relating to the electro-deposition of composite coatings
Inventor: KEDWARD ERIC CHARLES
IPC: C25D15/02
Filed: 1967-04-27
Abstract: 1,220,331. Electro-depositing chromium composite. BRISTOL AEROJET Ltd. July 29, 1968 April 27, 1967], No.19379/67. Heading C7B. A composite coating of a matrix of Cr or Cr alloy with ceramic, cermet or metal particles is electro-deposited, e.g. on to metal or graphite, from a Cr plating bath containing the particles, e.g. of ZrB 2 , which has been worked for more than 8 hours. The bath may contain 250 g/1 CrO 3 , 2.5 g/1 concentrated H 2 SO 4  and 100 g/1 ZrB 2  (e.g. 3-5 micron particle size). Preferably the article to be treated, e.g. to provide abrasion and oxidation resistance, already has a Cr flash deposited on it from a Cr plating bath without particles. Further articles may be plated from the same bath on a continuous basis without further "dummying-in". The particles are preferably maintained in suspension by admitting air to the bath as described in Specification 1,218,179.
Patent GB-962493-A (GB)
Title: Envelope-sealing apparatus
Inventor: LAWES HARRY EDWARD
IPC: B43M5/02
Filed: 1962-05-21
Abstract: 962,493. Closing envelopes. M. MYERS & SON Ltd. May 15, 1963 [May 21, 1962], No. 19406/62. Heading B8C. An apparatus for moistening the gum on the flap of an envelope and pressing it down to secure it comprises rollers 12 supplying water to the flap when passed beneath a guide surface 13 and clamping plates 15, 16 between which the envelope is pressed. The plates are hinged together at 17 and spring biased apart. Hand pressure on an extension 20 of the plate 16 pivots it about a rib 21 and a projection 23 causes the plate 15 to swing down towards it. A resilient pad 18 is provided.