baber/WOPTO huggingface dataset:
Patent GB-578458-A (GB)
Title: Improvements in or relating to the mounting of electric terminals on metal plates
IPC: H01G4/224
Filed: 1944-05-08
Abstract: 578,458. Terminal mountings. SPORING, P. A., JOHNSON, C. P., and TELEGRAPH CONDENSER CO., Ltd. May 8, 1944, No. 8685. [Class 38 (i)] [Also in Group XXII] A terminal comprising a conductor 10 in an insulating bush 7, i mounted in an aperture 2 pierced in a plate 1, by turning upwardly the mat gin 3 of the apertur and spinning it outwardly over an internal flange of a tube 4 to form an annular projection, where on a flange 8 of th bush 7 rests, with th interposition of a gaske 12, the bush 7 being secured in place by turning over the edge 13 of the tube 4 to bear on the flange 8. Before insertion of the terminal 10, 7 the tube 4 may be soldered at 6 to the margin 3 and plate 1. When two or more terminals are mounted on the plate, one or more of the bushes may be marked or coloured to indicate polarity.
Patent GB-727037-A (GB)
Title: Improvements in or relating to sheet delivery mechanism for rotary printing machines
IPC: B41F21/10
Filed: 1952-04-04
Abstract: 727,037. Sheet-delivery apparatus. ABELL, G. E. B., TILLEY, D. W., and WINGROVE, A. G. March 31, 1953 [April 4, 1952], No. 8740/52. Class 100 (1). In a delivery device for rotary printing machines, sheets are taken from the impression cylinder 12 by a cylindrical or part cylindrical carrier 26 provided with grippers 29 which delivered the sheets on to an endless conveyer 44 printed side up. As shown, the machine comprises a printing cylinder 10 carrying plates 11 and an impression cylinder 12 between which sheets, e.g. bank notes, are fed in the direction of the arrow 16, the cylinder 12 being provided with grippers 19 operated by means of cam followers 21 and cam surfaces 20. Mounted on a carriage 25 behind the impression cylinder 12 is a sheet carrier having knife edges 26 and mounted on a shaft 27 driven by the machine driving mechanism. The members 26 have a radius equal to a half that of the impression cylinder, the peripheral speeds of the cylinder 12 and the carrier 26 being equal. Each of the members 26 . has an associated gripper 29 operated by an arm 31 having a roller 32 bearing against a fixed cam 33, bias being provided by a spring 34. The sheets are held in position around the members 26 by spring biased rollers 36. A cam 40 co-operating with a roller 41 serves to move the rollers 36 away from the carrier to permit the grippers 29 to move thereunder. The sheets are released from the grippers 39 by means of a projection 35 on the cam 33 and are stripped from the members 26 by curved guides 59, assisted by air blowers 43 so as to be deposited on a belt conveyer 44 which is provided with side lays 45. The carriage 25 can be moved towards and away from the impression cylinder 12 by the action of a handle 48 and rack and pinion arrangement 46, 47. Correct synchronization between the grippers 19 and the grippers 29 is achieved by a registering device (Fig. 8) comprising a detent 52 pivoted on a fixed part 53 of the carriage 25 for engaging a disc member 54 secured to the carrier shaft 27. The other end of the detent arm is adapted to engage a part of the printing machine so that the detent is lifted out of the member 54. When the carriage is to be moved away from the impression cylinder the machine is stopped in a position such that the detent finger 52 is immediately over the co-operating recess in the member 54. The inertia of the impression cylinder prevents accidental rotation thereof, whilst the detent member 52 locates the carrier members 26 in correct position.
Patent GB-568358-A (GB)
Title: Improvements in or relating to step-by-step motion transmitting mechanism
IPC: B41F31/12
Filed: 1941-08-01
Abstract: 568,358. 358. Converting reciprocating into step - by - step rotary motion. MILLER PRINTING MACHINERY CO. Aug. 1, 1941, No. 8850/43. Convention date, Aug. 3, 1940. Divided out of 568,346, [Group XVI]. [Classes 80 (i) and 80 (iii)] Reciprocation of a rod 70, Fig. 1, is converted into step-by-step rotation of a shaft 85 actuating, e.g. the roll of a printing press inker, as described in Specification 568,346, the shaft being moved during each forward and backward stroke of the rod. At its upper end, this rod carries a bracket 81 to which are secured by bolts 82 a pair of racks 83, 84, the teeth of which face one another, the racks being laterally offset as in Fig. 2, so that the pawls operate in the same plane. Loosely mounted on the shaft 85 are a pair of members 86, 87, Figs. 2, 3, each comprising a toothed segment 88 and a spring-pressed pawl 89. The segment of member 86 meshes with rack 84 and that of member 87 with rack 83. The pawls 89 are adapted to co-operate with the teeth of a ratchet-wheel 90 fixed to the shaft 85 between the members 86, 87. When the rod 70 moves downwardly, the members 86, 87 are swung in a generally upward direction, the pawl 89 of the member 87 moving the ratchetwheel in a counter-clockwise direction, the other pawl riding over the teeth. Upon upward movement of rod 70, the pawl of member 86 moves the ratchet-wheel in the same direction.
Patent GB-744596-A (GB)
Title: Improvements in the manufacture of iron in low shaft furnaces
Inventor: KOPPENBERG HEINRICH
IPC: C21B5/00
Filed: 1952-04-08
Abstract: Iron ore is smelted in a low shaft furnace using air or air slightly enriched with oxygen for the blast, the ore and fuel of the charge are mixed before charging, contain no more than 5 per cent of particles larger than 25 mm., and the charge is added either continuously or in small batches.  The iron produced may be tapped in small quantities at a time or may be tapped continuously into a forehearth heated by gases issuing from the tap-hole and in which the iron may be converted to steel.  The air may be enriched with oxygen up to 24 per cent.
Patent GB-1365658-A (GB)
Title: Semiconductor device
IPC: H01L23/31
Filed: 1973-02-23
Abstract: 1365658 Semi-conductor devices GENERAL ELECTRIC CO 23 Feb 1973 [1 March 1972] 8947/73 Heading H1K A semi-conductor device, e.g. a rectifier, triac, or power transistor comprises a continued mounting and heat sink 2, external leads 4, 6, 8, and a plastic encapsulation 10; the mounting being a thick plate of thermally conductive material, e.g. copper plated with nickel as a segment of a strip comprising plural similar interlinked plates, and secured by a bolt or the like through aperture 16. An extended part 18 of the plate having diminished width is ribbed at 20 to engage the encapsulant 10, and an insulant thermally conductive wafer 26 of, e.g. alumina, aluminium nitride, or beryllium oxide overlies the upper face of the plate; with a central metallized region 28 thereon, e.g. of fired molybdenum-manganese nickel plated and silver solder coated flanked by two similar side regions 30, 32. The bottom face of the wafer is also metallized for soldering to the extended part of the plate. Inner ends of leads 4, 6, 8 of, e.g. copper plated with nickel and coated with gold and are soldered to the respective metallized regions with the end of lead 6 flattened and the ends of the side leads 4, 8 cranked to engage the encapsulant. An edge passivated semi-conductor plate (Fig. 2, not shown) with electrodes thereon overlies flattened region 40 over a thermally conductive metal slug of, e.g. nickel plated copper soldered to region 40 and to the underlying semi-conductor collector electrode, the overlying gate and emitter electrodes being soldered to leads 4, 8 over nickel plated sheet copper gate leads 62, 64. The side walls of the semi-conductor are coated with inert material, e.g. RTV silicone and mould encapsulated in, e.g. silicone GRP; plural such devices may be formed in a strip conjoined by links (Fig. 6, not shown) which are later severed.
Patent GB-1006461-A (GB)
Title: Improvements in and relating to driving mirrors
IPC: B60R1/04
Filed: 1963-03-07
Abstract: 1,006,461. Vehicle mirrors. GEBR. HAPPICH G.m.b.H. March 7, 1963 [April 9, 1962], No. 9040/63. Heading B7J. A vehicle rear view mirror, Figs. 1, 2 and 3, comprises a mirror head 1 connectible to a mounting arm (not shown) through a ball joint including a part-spherical seat 3, the head being made from yieldable synthetic plastic foam material covered by a non-porous outer skin 13 of soft synthetic plastic sheet, The mirror glass 7 is held in grooves 5 in arms 4 of a sheet metal holder 2 embedded in the foam plastic which holder includes the seat 3. The glass 7 is also held in a peripheral groove in the head by means of a clamping strip 9 of synthetic plastic and rests with the greater part of its rear surface on a support free 15 of the head. In another embodiment described with reference to Figs. 4 to 7 (not shown) the head is formed with a large cavity provided with a supporting rib to engage the rear of the mirror glass and the metal holder 2, 3, 4 is insertable into the head. According to another embodiment the head is in two parts, one carrying the mirror glass and the other carrying the metal holder, the two parts having engaging chamfered faces and being secured together by a clamping strip. The rear surface of the mirror glass may be covered with a synthetic plastic layer to prevent damage from splintering in event of breakage.
Patent GB-664771-A (GB)
Title: A new or improved machine for stripping the bark from logs
IPC: B27L1/00
Filed: 1949-04-04
Abstract: 664,771. Removing tree bark. BRITISH BASKET & BESTO CO., Ltd., and PIGGOT, G. D. March 22, 1950 [April 4, 1949], No. 9064/49. Class 145 (ii) A machine for removing bark from logs consists of two series of knives. i in staggered relationship pivoted to a circular frame a. Springs n press the arms e inwards to engage the log q which is pressed through the device, the blades i, stripping the bark from the log. The guards j determine the depth of cut and a plunger o is used to press the log through the machine.
Patent GB-1028427-A (GB)
Title: Means for preventing contamination of the igniting means of internal combustion engines
IPC: F02F1/24
Filed: 1963-03-07
Abstract: 1,028,427. Sparking plugs; casings. WORTHINGTON CORPORATION. March 7, 1963 [Oct. 10, 1962], No. 9075/63. Heading FIB. A chamber 24 is arranged around the or each sparking plug. 34. Air or nitrogen or other inert fluids may be supplied to the chamber 24. It is stated that the chamber may be integral with the head 12. A modified chamber 24 and method of mounting the sparking plug are described with reference to Fig. 2 (not shown).
Patent GB-832097-A (GB)
Title: Improvements in or relating to window or door structures
IPC: E06B7/23
Filed: 1957-03-20
Abstract: 832,097. Draught excluders. BAGGESGAARD, H. E. March 20, 1957 [March 21, 1956], No. 9077/57. Class 20(3) A continuous elastically deformable sealing strip 1, made e.g. of thermoplastic material, is secured in a recess 3b formed in the inner face of a fixed window frame 3 and has a dished central section 1a which receives a correspondingly shaped part cylindrical outer surface 2a of a movable tubular frame 2 to clamp and seal it when it is closed. The movable frame 2, made e.g. of thermoplastic material, has an eccentric bore 2b which serves to secure pivots 5 which project through aligned holes in the movable frame and the sealing strip and into bushings 6 mounted in the adjacent upper and lower transverse fixed frame members. Double panes 4, with an intermediate strip 4a, are secured in the movable frame 2 by a clamping strip 2c. In a modification, Fig. 4, an M-shaped sealing strip, secured -around the outer edge of the movable frame, engages a button 3a secured around the corresponding inner face of the fixed frame. An M-shaped sealing strip may, alternatively, be screwed in a recess in the inner face of the fixed frame to co-act with the outer face of the movable frame. The sealing strip may also be used in conjunction with pivoted doors.
Patent GB-526691-A (GB)
Title: Improvements relating to fan systems for steam generating plant
Filed: 1939-03-22
Abstract: 526,691. Automatic control systems. JENNINGS, H. W. K. (Sturtevant Co., B. F.). March 22, 1939, No. 9091. [Class 38 (iv)] . Fluid pressure.-The forced draught fan 5 and induced draught fan 6 for the furnace of a steam generator are driven by' a common motor 8. The speed of the motor is regulated in accordance with the pressure in the header 20 by a pressure chamber 23, variable resistance 28 and regulator 37 acting in the manner of a contactmaking voltmeter. This simultaneous regulation of the speed of both fans does not give the best conditions in the combustion chamber, so the effect of the fan 6 is adjusted by a reversible pilot motor 16 under the control of a regulator 19 sensitive to the pressure in the combustion chamber and biased by the current through the resistance 28 and regulator 37. The fans 5 and 6 are respectively of the type disclosed in Specifications 295,018, [Class 110 (i)], and 358,154, [Group XXVI], and the regulator 9 may be similar to that disclosed in U.S.A. Specification 1,870,984.
Patent GB-708068-A (GB)
Title: Improvements relating to vehicle springing systems
IPC: B60G9/00
Filed: 1951-04-18
Abstract: 708,068. Vehicle frames. BARENYI, B. April 18, 1951 [Oct. 1, 1948], No. 9095151. Class 79(4) [Also in Group XXXII] In a vehicle springing system, a vehicle axle is arranged between metal springs or rubber cushions which abut on the one hand against the frame or body of the vehicle and on the other hand against an auxiliary frame which is connected to the axle and is adapted for swinging not only about an axis located transversely of the vehicle in the space between the springs or cushions, but also about an axis located transversely of the vehicle and outside the space between the springs or cushions. In the arrangement shewn, an auxiliary rigid frame consisting of transversely extending bowed struts 6a, 6a connected by a pair of members 6b 6b, is pivotally suspended on hangers 8 depending from a rigid axle 9 and is sprung transverse main frame members 2, 3 by coil springs 5. Rollers 12 mounted on an axle casing 10 engage guides 11 mounted on the main frame longitudinals 1, 1. The axle assembly and auxiliary frame are connected to a main frame member 4 through a so called trumpet 15 and ball joint 16. In a modification, Fig. 3 (not shown) vertical movements of the auxiliary frame may be guided by a single guide member and roller arranged centrally of the bowed member 6a and member 2. A plurality of springs 5 may be used at each end of the members 2, 3 arranged one beside or one inside another. The springs may be replaced by rubber cushions and the guides replaced by " scissors"  or link-guides. In another arrangement, Fig. 4, (not shown) the auxiliary frame consists of a single bowed transverse member connected to a single central longitudinal member and sprung against the main frame by three coil springs. In other arrangements, Figs. 5 to 10, the pivotal attachment of the auxiliary frame is arranged concentrically of, forwardly, rearwardly, below and above the axle casing, respectively. In each case the pivotal connection of the trumpet may be horizontal or above or below the horizontal. In further arrangements, Figs. 11-15, (not shown) the auxiliary frame, and axle casing are rigidly connected, and are pivotally connected to the main frame through a reaction rod, connected either concentrically of, forwardly of, rearwardly of, below or above the axle casing.
Patent GB-883591-A (GB)
Title: Improvements in or relating to circuit arrangements comprising a bistable trigger device
IPC: H03K23/76
Filed: 1958-03-21
Abstract: 883,591. Circuits employing bi-stable magnetic and dielectric elements. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 21, 1958 [March 22, 1957], No. 9143/58. Class 40 (9). [Also in Group XL (c)] In a circuit comprising an impedance bridge 2, 3, 4 and 5, in which one arm includes a variable impedance controlled by a trigger device 1 between two conditions, a pulse input is applied to one diagonal of the bridge and the trigger device is connected across the other so that consecutive pulses of the same polarity applied at the input produce pulses of alternate polarity at the trigger device to switch it on and off alternately. In the arrangement of Fig. 3, employing the saturable core 8 as the variable impedance, resistor 2 is of such a value that the point contact transistor or other transistor having an alpha greater than unity is caused to take up one or other of two states in which the transistor is either cut-off or fully conducting. A current from the supply 7 passes through winding 21 on saturable core 8 and resistor 22 to bias the operating point at 0, Fig. 5. A negative pulse applied over winding 5<SP>1</SP> to the emitter of transistor 1 causes the operating point to move to 1 and since the curve I is steep the impedance presented to the pulse is high so that the base potential is lowered more than the emitter and the transistor 1 switches on, the flow of current through winding 6<SP>1</SP> carrying the operating point to 2. When the pulse ceases the operating point passes back to the point 1. The next input pulse drives the operating point towards 2 and since the winding 5<SP>1</SP> prevents a small impedance the input is more effective at the emitter than the base and causes transistor 1 to switch off so that the operating potential falls to 1 and at the end of the pulse along the curve II to its original point 0. In a modification, Fig. 4, a single winding 4<SP>1</SP> is used biased by a battery 24 over a resistor 23. The current in winding 4<SP>1</SP> is reversed when the transistor 1 conducts to cause base current to flow through 4<SP>1</SP>. In a further modification, Fig. 6, a ferro-electric capacitor 5<SP>1</SP> is employed biased to the operating point 0. A positive-going input is effective to drive the capacitor to the point 1 and since it presents a low impedance the input raises the emitter potential more than the base so the transistor 1 is switched on, the operating point passing to 2 and falling back to 1 when the input pulse ceases. The next input pulse drives the capacitor further into saturation and is therefore more effective at the base than the emitter and the transistor I is switched off, falling back to point 1 and when the pulse ceases to its original operating point 0. In order to reduce the effect of the base potential being fed to the upper side of the capacitor when the transistor is on the input may be supplied from a low impedance source or alternatively a high-valued resistor may be included in the base lead. Specification 822,340 is referred to.
Patent GB-278600-A (GB)
Title: Improvements in laundry machines for washing or otherwise treating goods with liquids or gases
IPC: D06F37/30
Filed: 1927-04-05
Abstract: 278,600. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). April 5, 1927. Washing - machines with rotary receptacles.-The casing 1 which contains the receptacle 2 and heating coils is provided with windows 5 so that the progress of the operations can be seen and the receptacle stopped in the position in which its door registers with the casing door 3. A device for preventing the operating motor from being switched in until the casing door has been closed, and for preventing opening of the door whilst the motor is running, comprises a crank arm 16, Fig. 6, mounted on a shaft 17 and having a notched free end engaged by a latch 14 secured to the inside of the casing door. On closing the door the shaft 17 is rotated against a spring 18 and a contact 31 carried bv the shaft is caused to bridge a pair of contacts 30 in the motor circuit. The latch and crank arm are held by the engagement of a roller 24 in a stepped segment 25 on the shaft 17, the roller being carried by an extension of an armature 21 biassed counterclockwise by a spring 22. The coil 20 and the motor are in parallel circuits controlled by a main double-throw switch, so that the armature is not attracted to the coil against the spring 22 to release the segment 25 and crank and latch 16, 14 to permit the casing door to be opened until the double-throw switch is operated to open the motor circuit and to close the circuit to the coil.
Patent GB-146641-A (GB)
Title: Improvements in gear trains
IPC: F16H57/02
Filed: 1919-04-14
Abstract: 146,641. Parsons, Sir C. A., Cook, S. S., and Douglas, L. M. April 14, 1919. Toothed gearing.-In helical double-reduction gearing of the double helical type in which a driving-pinion drives two gears wheels on separate intermediate shafts each or which carries a pinion driving a common gear wheel, both of the separate helices of one of the two toothed elements on one of the intermediate shafts are circumferentially or axially adjustable on their shaft to equalise the drive through the two trains. In the form shown in Figs. 2 and 3, the parts are assembled, the first or last member of the train is locked, torque is then applied, and the parts 1, 2 of a gear wheel c are bolted to webs 3, 4 secured to the intermediate shaft e, dowel pins or the like being fitted to retain the parts permanently in position. The drive may be further equalised by cushioning-means. In one form, one or both gear wheels are connected to the intermediate shafts by spring means such as is described in Specification 13019/06, or one set of springs may be omitted, so that the drive in one direction is non-resilient. The helices 19, Fig. 12, may be bolted separately to the rim 20, which is connected to its boss by spring spores 18. In a modification, the prime mover shaft is carried in bearings 11, Fig. 8, which are so supported by springs 13 that the shaft can adjust itself in a plane at right angles to that joining the primary and intermediate shafts. Dash-pots may be provided to limit oscillation.
Patent GB-639966-A (GB)
Title: Improvements in superheterodyne radio-receiving apparatus
IPC: H04B1/26
Filed: 1948-04-05
Abstract: 639,966. Valve circuits for radio reception. PHILIPS ELECTRICAL, Ltd. April 5, 1948, No. 9507. Convention date, April 8, 1947. [Class 40 (vi)] A superheterodyne receiver has means (not shown) dependent on an output voltage for giving an alarm or effecting a change-over to spare apparatus on failure of the receiving apparatus. In order that the alarm or change-over shall not operate due to a cessation of the received signal, an additional oscillator 7 is provided which supplies to the input stage 2 a signal of the same frequency as the incoming signal but at a smaller amplitude. During normal reception, oscillator 7 is inhibited by intermediate frequency energy rectified at 9. On cessation of the incoming signal, reduction of the I.F. output allows oscillator 7 to supply a replacement signal sufficient to prevent operation of the alarm. If, however, the receiver is faulty, there will still be no I.F. output and the alarm will operate or new apparatus will be substituted.