baber/WOPTO huggingface dataset:
Patent GB-782080-A (GB)
Title: Improvements in or relating to multiple terminal blocks for use in telephone systems
IPC: H01R9/24
Filed: 1955-05-27
Abstract: 782,080. Terminal boards. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 27, 1955 [May 31, 1954], No. 15376/55. Class 38 (1). [Also in Group XXXIX] A multiple terminal block 2-5 which is of translucent resinous material and is grooved as at 8, Fig. 3, to seat on a common supporting- bar 9, Fig. 4, has embedded and anchored therein in staggered relationships the bent middle portions of two parallel rows of identically formed terminal strips 6a, 6b, the plane of the strips being at right-angles to the row and the bends in them extending in a direction towards the other row. The blocks may be secured to the bar by screws 7 or rivets.
Patent GB-612627-A (GB)
Title: Automatic gain-control arrangement
IPC: G01S13/78
Filed: 1946-05-21
Abstract: 612,627. Automatic gain control. HAZELTINE CORPORATION. May 21, 1946, No. 15406. Convention date, June 1, 1945. [Class 40 (v)] To reduce the effect of interference pulses in a pulse modulated system, fast A.G.C. is employed, the control potential having a duration approximately equal to the desired pulse train, but being terminated rapidly thereafter. A super-regenerative receiver 12, Fig. 1, feeds a noise-gain stabilization circuit 15 of the type described'in Specification 592,271, having a long time constant circuit 16, 17. The receiver also feeds a peak rectifier 21 feeding amplifying valves 22, 23 which produce a control potential for application to the receiver 12. The received signal, Fig. 2, curve A, may comprise a pilot-pulse P1 and associated signal pulses P2, P3 and an interference pulse P4. Due to the peak rectifier 21 the pilot-pulse appears as a pulse P5, curve C, causing the gain of the receiver to fall, curve D. As the peak rectifier is only effective on pulses above a certain amplitude, only the early part of the pilot-pulse is used, the gain of the receiver decreasing the input to the peak rectifier 21 below the requisite level. The anode load of valve 23 includes a delay line 31 shorted at its further end and terminated by the characteristic impedance at the anode end. The pulse P5 is reflected at a pulse P6 after a time equal to the greatest length of the pulse signal, thus restoring the gain of the system, curve D. The signal fed to the limiter 13, curve E, is clipped at levels F, G to produce an output signal H. In a modification, Fig. 3 (not shown), a superheterodyne receiver is employed with A.G.C. units corresponding to units 15, 20. In order to dispense with the pilot-pulse, the signal is fed directly to an auxiliary channel and through a delay line to the main channel. Specification 612,371 also is referred to.
Patent GB-239631-A (GB)
Title: Coin freed apparatus
Filed: 1924-06-26
Abstract: 239,631. Wistoft, S. June 26, 1924. Testing coins.-A device for detecting the use in coin-freed apparatus of coins having a hole therein comprises a three-armed lever g, h, j pivoted at k in a bracket l carried by one plate b of a shoot b, c which slopes downwardly and is inclined laterally. The arm h projects across the shoot and is struck by a coin to move the arm g into the shoot thereby impaling a coin having a hole in it. If the coin has not got a hole, the arm g abuts against it and the lever is slid away from the shoot to allow the coin to pass, the pivot k working in a slot o in the bracket l. The weight of the arm j, assisted by a weight or a spring if desired, returns the lever to its normal position. A stop n, Fig. 3, engageable by the arm h is provided to limit the rocking movement of the lever when acted on by a coin, so that the arm g positively stops a coin with a hole in it. Instead of working in a slot the pivot k of the lever may be carried by a spring. To rerelease a coin that has been stopped, the plates b, c are hinged together by spring hinges, and one leaf may be opened from the exterior of the machine by a chain or otherwise so that the coin is returned.
Patent GB-625721-A (GB)
Title: Use of phosphorus oxides in producing quartz coatings in a vacuum
IPC: C03C17/245
Filed: 1947-06-12
Abstract: 625,721. Vaporization coating. LIBBEYOWENS-FORD GLASS CO. June 12, 1947, No. 15548. Convention date, Nov. 15, 1946. Draw-, ings to Specification. [Class 93] [Also in Group XX] Surfaces are coated with quartz by heating the quartz in intimate contact with a phosphorous oxide on a heat radiating support body in a high vacuum and depositing the evaporated quartz on the surface. The quartz is intimately mixed with or coated by tumbling with P 2 O 3 , P 2 O 4 , P 2 O 6  or with compounds which form these oxides on heating e.g. hypophosphorous, phosphorous, phosphoric, phosphormolybdic, or phosphotungstic acids, ammonium salts of phosphorous and phosphoric acids, NaH 2 PO 4  &c. The oxide is preferably fused to the quartz by a preliminary heating. In one example the oxide is enclosed in small diameter quartz tubes. The treated quartz is then heated above 1500‹ C. in a vacuum of e.g. 10<SP>5</SP> mms. in an electrically heated core or crucible which supports the quartz, and the evaporated quartz is deposited on a glass, plastic &c. surface, e.g. a mirror, which is supported in the evacuated container. A coated mirror may be produced by supporting a glass sheet, a coil enclosing silver, and a coil enclosing treated quartz in an evacuated container, heating the first coil so that silver is deposited on the glass, then heating the second coil so that a quartz coating is deposited on the silvered glass. The quartz may provide a protective or a low reflection surface.
Patent GB-724358-A (GB)
Title: Bearing and method of making same
Inventor: STEARNS FRANK HENRY
IPC: F16C33/60
Filed: 1953-06-05
Abstract: 724,358. Ball bearings. SPLIT BALLBEARING CORPORATION. June 5, 1953, No. 15599/53. Class 12 (1) The outer race 15 of a ball bearing is axially fractured at one point only to facilitate the assemblage of the balls. After being machined and hardened, an axial groove 22 is formed in the outer surface of the ring. An expansion device comprising semi-cylindrical members 23, 24 is then inserted in the ring, with a rib 29 on the member 23 located opposite the groove 22. The. members 23, 24 are then forced apart by means of a wedge 26, and the ring becomes fractured at the groove 22. Cylindrical lands on each side of the bearing groove are made of different diameters, so that when the balls are inserted from one side they do not fall out the other side. In a double row ball bearing the diameters A, B and C, Fig. 2, of the cylindrical lands 18, 19, 20 are made progressively larger. The outer race is provided with a peripheral groove 39 to receive a flange 41 of a locking disc 40, Fig. 8. A split annular disc 43 forms a seal on the opposite side of the bearing. The balls may be carried in a cage made of a material comprising a laminated moulded plastic of fabric base.
Patent GB-909374-A (GB)
Title: Railway traffic control systems
IPC: B61L25/08
Filed: 1960-05-04
Abstract: 909,374. Central traffic control systems. GENERAL RAILWAY SIGNAL CO. May 4, 1960 [June 3, 1959], No. 15732/60. Class 105. In a traffic control system, two indicating means are associated with each track intersection on a track diagram, the first indicating means showing the actual setting of track switches and signals at the intersection and the second indicating coincidence or non-coincidence between certain of the actual settings and the desired settings as indicated by the position of the track switch and signal setting levers. Assuming the track switch and signal of field station No. 1 on the track layout (not shown) are to be set to normal and clear left respectively, track diagram levers WL, Fig. 1A, and GL, associated with station No. 1 on the track diagram are moved to N and W respectively and the command is transmitted to the field station by code communication apparatus. In this apparatus the return indication code from the field station comprises first an identification code signal which is applied via step relay contacts to registration relays R1-R4 and RX, in the example chosen, the code is such that relays R1-R3 remain de-energized and relays R4 and RX are picked up, whereby station No. 1 relay 1ST is energized via an obvious circuit which includes lead 70. This is followed by an indication code signal which is applied to indication relays NK (track switch normal), RK (track switch reverse), RGK (signal clear right) and LGK (signal clear left) and these relays are picked up, or remain released, in accordance with the actual state of the track elements at the field station, in addition relay WKP is energized when either relay NK or RK is picked up. At the end of the code tranmission relay LV is picked up and common buses 1-5 are energized in accordance with the state of the indicating relays, in this example, as shown in Fig. 4, a positive potential is applied to buses 2, 3 and 5. Buses 1-5 are connected via diodes 1D-5D and buses a-e to display unit 1KU in which a motor M is driven by the coded signal via front contact 12, relay 1ST until the display unit assumes the required indication as shown in Fig. 4 and motor-driven switch contacts 2B, 3B and 5B associated with energized buses 2, 3 and 5 are open and contacts 1B and 4B associated with de-energized buses 1 and 4 are closed. When the communication system enters a period of rest the code registration relays and relay LU release releasing relay IST, whereby lamp LGE is energized via back contact 10 relay IST, switch contact 26, motordriven contact 4B and back contact 11 relay IST, indicating coincidence between the actual and required signal setting. Similarly, lamp RGE is energized when the actual and required settings are clear right. When the desired signal is at stop lamp WE is energized when the desired and indicated setting of the points are not coincident.
Patent GB-1493564-A (GB)
Title: Loading means for distributors for fertilisers
IPC: A01C15/00
Filed: 1976-04-15
Abstract: 1493564 Luffing arm apparatus AGRICULTURAL DISTRIBUTORS Ltd 15 April 1976 [16 April 1975] 15747/76 Heading B8H [Also in Division Al] A hopper 5 and a spreader 4 are supported on an arm assembly 6, 7, 8 from the hydraulically operated lift links 2, 3 of a tractor; also mounted on the links 2, 3 and pivotally connected to the arm 8 at 12 is a ram-operated mast 9, 10 which is used to lift fertilizer sack 13 &c. over the hopper. The sack 13 is lifted on a line 15 by means of the mast 9, 10 with the lift links 2, 3 lowered; then with the line engaged by a hook 16 the lift links are raised so that the sack 13, when lowered by the mast 9, 10 is over the hopper.
Patent GB-448298-A (GB)
Title: Improvements in and relating to bearings for shafts
IPC: F16C32/06
Filed: 1935-05-30
Abstract: 448,298. Bearings. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. May 30, 1935, No. 15787. Convention date, May 31, 1934. [Class 12 (i)] A bearing sleeve 25 is provided with circumferentially spaced recesses 27 to which mercury, water, or other fluid under pressure is conducted through orifice plugs 29, whereby the shaft is supported in floating manner by the fluid. When the bearing is applied to a mercury pump the pressure fluid is supplied at 33 from the pump discharge. Leakage from the bearing is discharged at 31. Two or more sets of such recesses spaced axially apart may be employed for high loads, the orifices in the lowermost plugs being larger than those at the top of the bearing. Specification 267,947, [Class 12 (i)], is referred to.
Patent GB-224829-A (GB)
Title: Improvements in cleaning and polishing rollers for tin plates
IPC: B24D9/04
Filed: 1924-07-01
Abstract: 224,829. Rees, D. J., and Cole, J. H. July 1, 1924. Cleaning.-A roller for cleaning or polishing tin plates comprises a hollow steel cylinder b provided with a longitudinal slot and mounted on metal collars c notched at f to correspond with the slot in the cylinder b and keyed to the spindle a. The cylinder is secured to the collars c by dowels e and a wooden strip g is fitted in the slots formed by the collars and the cylinder so as to fit flush with the latter. The ends of the strip g are rebated to fit the stepped parts of the notches f of the end collars c and the strip is also notched to straddle the step in the notch f of the intermediate collar d. The strip g is secured bv screws h and the usual sheepskin covering is stretched round the roller and secured to the strip g.
Patent GB-551139-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G2/12
Filed: 1941-12-08
Abstract: 551,139. Condensers. INGRAM, Sir H. Dec. 8, 1941, No. 15810. [Class 37] The component parts of a condenser are made of materials such as will stand high temperatures and the condenser is embodied within an outer covering of a micaceous vitreous insulating material. The electrodes, which project from both ends may be curled up and secured together as shown at g, h, and terminals attached by drilling through the covering and inserting screws i. Alternatively terminal strips secured to the electrode ends may project at each end. The process of covering under heat and pressure may be simultaneous with that of the formation of the micaceous material from its ingredients. Specifications 333,240, [Class 87 (ii)], 432,424 and 532,824, [both in Group V], are referred to.
Patent GB-433570-A (GB)
Title: Improvements in and relating to electric gas-detecting lamps
IPC: F21V33/00
Filed: 1934-05-28
Abstract: <PICT:0433570/III/1> In gas-detecting miners' lamps of the kind described in Specification 399,978, which comprise a translucent photometric screen the two halves of which are illuminated respectively by an open and a sealed filament, an adjustable resistance is provided in series with one filament for calibration purposes.  The general arrangement of the parts resembles that described in the Specification referred to, but the head of the lamp is rotatable relatively to the battery case into three positions for switching on either the illuminating or the testing circuit.  The Figure is a partial vertical cross-section showing the preferred form of calibrating device.  A resistance wire 30 is helically wound on a former 31 and is continuously contacted by a finger 34 attached to the head 33 of a screw 32, which has a pitch corresponding to that of the coils of resistance wire and is screwed to a variable extent into the former 31.  The adjustment is effected by turning a rod 39 which is splined to the screw-head 33 and is carried in a flame-tight bearing 42 in the top of the lamp casing 4.  A squared head 45 is provided at its outer end to engage an operating key.
Patent GB-1470130-A (GB)
Title: Heald frame
IPC: D03C13/00
Filed: 1975-04-17
Abstract: 1470130 Heald frames GROB & CO AG 17 April 1975 [18 April 1974] 15858/75 Heading D1E  Guides and driving elements 6 are hooked to clamp over ribs 12, 13 on the frame staves 1. The elements 6 are clamped to the staves 1 by screws 22 and springs 21 and may have wearing surfaces 14, 15.
Patent GB-759495-A (GB)
Title: Improvements in or relating to a.c. electric motors
Inventor: WIKKENHAUSER GUSTAV
IPC: H01H35/10
Filed: 1953-06-10
Abstract: 759,495. Centrifugal switches; magnetic switches. KELVIN & HUGHES, Ltd. June 10, 1954 [June 10, 1953], No. 15954/53. Class 38(5) An alternating current electric motor has an electric switch associated therewith which comprises contacts which are separated by centrifugally acting means assisted or counteracted by a magnetic force. A rotor member 15 is attached to a shaft 13 of an electric motor to which member 15 is secured an L- shaped switch member 19, 20 by means of two leaf springs 16, 21 arranged at right angles to one another. To the end of the arm 19 is attached a weight 38 which, by centrifugal force thereon, causes the L-shaped switch member 19, 20 to rotate about a virtual axis 25 formed by the intersection of the leaf springs 16, 21, thus removing the bridge 28 across the contacts 29, 30. The arm 20 of the L- shaped switch member carries a permanent magnet 70 arranged in mutual magnetic repulsion relationship with another fixed permanent magnet 33 so that the centrifugal and magnetic forces acting on the switch are in opposition. The distance apart of the magnets 33, 70 is adjustable by means of a screw 34 thereby to control the speed of the shaft 13. The switch member 19, 20 may be spring biased towards the position where the contact member 28 bridges the contacts 29, 30. In another embodiment the centrifugal force tends to cause a bowed leaf spring to straighten thus causing separation of a pair of contacts. The leaf spring is of magnetic material and is also influenced attractively by a permanent magnet. Auxiliary contacts opened by centrifugal force only may be arranged in parallel with the contact members 28, 29, 30. Specification 718,631 [Group XXXV], is referred to.
Patent GB-282465-A (GB)
Title: Improvements in and relating to printing plates, and the method of and means for producing same
IPC: B41C1/06
Filed: 1926-06-25
Abstract: 282,465. Ogilvie, C. H. E. June 25, 1926. Etching.-Printing-plates of celluloid are made by applying the design to the surface of a sheet of celluloid in casein or other substance which will resist the action of celluloid solvent, and then treating the plate with acetone or other solvent so as to dissolve the parts surrounding the design, leaving the latter in relief. The design may be applied to the sheet by first forming it in the resist upon a thin celluloid film, securing the latter to the, sheet by, the adhesiveness of the resist or by heat and pressure. The solvent is then applied to dissolve the film completely and to dissolve the sheet to the desired extent.
Patent GB-145025-A (GB)
Title: Improvements in rotary refrigerating apparatus for cooling of fatty substances, emulsions and the like
IPC: A23D9/02
Filed: 1920-06-14
Abstract: 145,025. Bigum, H. J. J. June 14, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Rollers or cylinders, hollow.-In rotary cooling apparatus for solidifying emulsions, fatty substances, and the like, a tortuous channel for the cooling-liquid is provided within the working surface of the rotary member, so that the velocity of flow of the cooling-liquid is maintained and the transfer of heat is thereby facilitated. The invention may be applied to cylindrical or conical drums or to plane surfaces. Fig. 2 shows a helical channel 9 within the working surface 6 of a drum 10. The cooling-liquid enters at one end 14 of the axis and leaves at the other end 15. Figs. 4 and 5 show a continuous zigzag passage 9 formed by ribs 8 parallel to the axis of the drum. An inner cylinder 7 is provided in each case, and the ribs forming the channel may extend from either the outer or the inner drum, or partly from each. In the case of a plane rotary surface, a spiral channel is disposed on its lower side.
Patent GB-946334-A (GB)
Title: Improvements relating to circuits for measuring the "q" or magnification factor of coils
Inventor: OXLEY CYRIL
IPC: G01R27/26
Filed: 1961-05-03
Abstract: 946,334. Measuring the Q of coils. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 30,1962 [May 3,1961], No. 16056/61. Heading G1U. As shown diagrammatically, a circuit for measuring the Q-factor of a coil L x  comprises two identical ganged variable capacitors C 1 , C 2 , a variable attenuator A, and terminals T 1 -T 4  to which voltage detection means D e.g. a voltmeter, can be selectively connected, the circuit being connected to an A.C. supply O e.g. an oscillator. The detector D is first connected to terminals T 1 , T 2  and the capacitors C 1 , C 2  adjusted to produce minimum p.d. across terminals T 1 , T 2 . The detector D is later connected to the terminals T 3 , T 4  and the attenuator adjusted to produce an output voltage V equal to the p.d. across terminals T 1 , T 2 , the Q-factor of the coil being then calculated from the expression 10<SP>a/20</SP> in which a is the voltage loss produced by the attenuator expressed in decibels. A practical form of the circuit is illustrated in Fig. 2 (not shown), in which a switching arrangement is provided for the detector, and socket connections are included for connecting the circuit to an oscillator and to the detector. The variable capacitors may have fixed capacitors connected in parallel with them to alter the capacitance range.
Patent GB-1144768-A (GB)
Title: Improvements in or relating to the manufacture of electrical components
Inventor: ROGGENBUCK WILLY
IPC: H05K13/00
Filed: 1966-04-12
Abstract: 1,144,768. Conveyers. KERAMISCHE WERKE HERMSDORF VEB. 12 April, 1966 No. 16058/66. Addition to 1,017,433. Heading B8A. [Also in Divisions B3 and F2] In apparatus for processing and balancing electrical components from substrate workpieces in a vacuum by means of a charge carrier beam by the method claimed in Specification 1,107,433, wherein the workpieces 4 are moved through pressure locks into a vacuum working chamber on a closed circuit conveyer comprising pallets 1, the workpiece or its pallet is positively located at processing and checking stations, and means are provided to compensate for differences in length of the pallets within the circuit which occur due to heat. The charge carrier beam may be an electron beam. The pallets which may be of ceramic, are moved along rails 2 by an electromagnet 23, Fig. 5, or by a cam disc, pneumatic or hydraulic drives. The outer rail has a spring-biased portion 19 adjacent the actuating means. In one embodiment the pallet is located at the working position by a lifting member 5, Fig. 1, which raises the pallet into engagement with locating surfaces 7 in the rails 2. The workpiece 4 may also be centred in its pallet. A detector 31 actuates a switch 32 to stop the conveyer if the workpiece is not in its correct position in the pallet. In another embodiment, Fig. 4A (not shown), the pallet (9) in its working position where it is vapour coated is located by a pin (13) and the pallet 9 at the workpiece entrance point of the conveyer circuit is also located by a claw 18 whilst it receives a workpiece by means of a spring-operated pusher (16), Fig. 4B (not shown). In a further embodiment, Fig. 3 (not shown), the workpiece (4) is itself raised from its pallet at the working position and located by pins (15). The driving and centring means for the pallets may be controlled according to a desired programme by means including a switch drum. Means including a magnetic clutch are provided to prevent movement of the pallets whilst a processing step is taking place. For lubricating the pallets (9), they are caused to engage a spring-loaded block (26) of molybdenum or tungsten disulphide, Fig. 6 (not shown). Lubricant blocks may act on four sides of the pallets.
Patent GB-803328-A (GB)
Title: Apparatus for performing metal working operations by electrical discharge
IPC: B23H1/02
Filed: 1955-06-06
Abstract: 803,328. Automatic control systems. QUALITEX-SOCIETE DUNOD & CIE. June 6, 1955 [June 5, 1954], No. 16097/55; Drawings to Specification. Class 38 (4). [Also in Group XXII] In spark machining apparatus the spark is produced from the secondary of an iron-cored transformer the primary of which is supplied with constant-amplitude rectangular pulses by an electronic generator. To supply spark erosion apparatus for metal working, e.g. drilling, the output of a double triode valve square-wave generator is applied to a limiter pentode valve the output of which is differentiated and the resulting pulses utilized to trigger a flip-flop valve circuit which, in consequence, produces pulses which are amplified by a Class C valve amplifier and applied between an electrode and the work through a step-down pulse transformer. A voltage, dependent on the primary current of the pulse transformer, is applied through a cathode-follower valve to control the flip-flop so that its pulse width varies inversely as the current to maintain the output to the work constant. The output of the flip-flop is also differentiated and applied to a valveoperated relay causing a reversible motor feeding the electrode to run in one direction or the other, according to whether pulse width is above or below a predetermined value, to maintain the energy content of the spark constant.