baber/WOPTO huggingface dataset:
Patent GB-1266021-A (GB)
IPC: H04N5/781
Filed: 1969-02-12
Abstract: 1,266,021. Automatic speed control. TELEFUNKEN PATENTVERWERTUNGS G. m.b. H. Feb.12, 1969 [Feb.13, 1968], No.7625/69. Heading G3R. [Also in Divisions G4-6] The Specification relates to the recording of picture signals on a disc. In recording the signals the disc 3 is rotated at a substantially constant tangential speed whereby the frame pulses 6 are recorded equally spaced along the spiral track 5 and during playback the frequency of the frame pulses is compared with a standard frequency (e.g. 50Hz mains) and the difference is used to control the rotational speed of the disc, e.g. by an electromagnetic brake 13, to maintain a constant tangential speed at the reproducing head corresponding to the correct frame repetition frequency. Either the disc may be magnetically coated or the spiral track may be magnetic. In recording the speed of the disc may be controlled by a mechanical drive such as a conical friction wheel controlled by the angular position of the reproducing arm. Such a mechanism can also be used to provide coarse speed control during playback.
Patent GB-1266343-A (GB)
IPC: B23K9/028
Filed: 1968-03-19
Abstract: 1,266,343. Welding by fusion. RICHARDSONS, WESTGARTH & CO. Ltd. 21 March, 1969 [19 March, 1968], No. 13351/68. Heading B3R. In deep, multi-run, flux-submerged arc welding, the length of electrode wire 13 protruding from the guide and contact nozzle 12 is kept substantially constant by maintaining the nozzle at a constant distance from the surface on which weld metal is being deposited by manual or automatic control means comprising a follower element which is operatively coupled to the nozzle and is caused to follow the surface on which the weld metal is being deposited or a graduated gauge scale or, as shown, a gauge facsimile 19 representing the section of the weld. As shown, a welding head 11 carrying the nozzle 12 is manually adjustable respectively vertically and horizontally by slides 16, 17. The operator controls the position of the nozzle by observing the position of the tip of a pointer 20, fast with the head 11, in relation to the particular weld run represented in the -weld section facsimile 19. The latter is vertically adjustable. In Fig. 2 (not shown), a follower roller (24) running in the joint preparation groove of a circular workpiece acts through a relay (25) and an hydraulic actuator (26) to adjust the height of the welding head 11.
Patent GB-1266350-A (GB)
IPC: F16B7/04
Filed: 1969-01-25
Abstract: 1,266,350. Structural joints; clamps. J. F. A. HUTCHINGS and M. HOCKTON. 22 Jan., 1970 [25 Jan., 1969], No. 4354/69. Headings E1K and E2B. [Also in Divisions A4 and F2] A means for making connections to tubular members e.g. in building frames comprises a spigot 7 adapted to fit within the tube end 5, said spigot comprising a block 1 of wedge shaped cross section extending in a direction parallel to the axis of the tube end 5 and having screws 3 in holes tapped in a direction perpendicular to the axis of the tube end, one or two wedge plates 2 extending parallel to the wedge block 1 and having a complementary wedge surface, the outer surface of the wedge plates being adapted to fit the interior of the tube end, a flexible binding material 4 to keep the spigot parts together while allowing it to expand into frictional contact with the tube end 5 when screws 3 are rotated to bear against the walls of the tube and thereby move the wedge block relative to the wedge plate or plates, and holes in the tubular member corresponding to the position of the screws. The screws 3 may bear on the inside walls of the tube, being tightened through holes which are small compared to the head of the bolt so that the screws are in compression, or may pass through the holes in the wall to be tightened in the usual way (Fig. 8). The spigot may be secured to another member in a framework by the wedge block or a wedge plate being formed integrally with a framework junction piece. The outer surfaces of the wedge plates may be roughened to increase friction with the tube walls. The binding material (e.g. of plastics or rubber) is formed round the spigot and shaped to make it easily insertable in the tube end, and may be of waterproof material to prevent ingress of moisture to the joint. The holes in the tube walls may be axially elongated to allow for adjustment when butt joining two tubes. In the case where the screws bear on the inside walls of the tube the joint may be loosened by tightening the screws through the wedge block to bear on the opposite inside wall of the tube. Any shape of cross section of tube may be joined.
Patent GB-1290950-A (GB)
IPC: F16D65/097
Filed: 1970-05-29
Abstract: 1290950 Sliding caliper spot-type disc brakes KELSEY-HAYES CO 29 May 1970 [26 June 1969] 8652/72 Divided out of 1290949 Heading F2E The disclosure is the same as that in the Specification 1,290,949, but the claims are concerned with first and second spaced torque arms, the engaging, by a brake pad on one side of the disc, of an abutment on the first torque arm, upon frictional engagement of the pad with the disc, and the transmitting of a portion of the braking torque from the brake pad to the second torque arm upon a predetermined deflection of the first torque arm (for limiting the loading on the first torque arm).
Patent GB-1294815-A (GB)
IPC: H03K5/06
Filed: 1971-04-19
Abstract: 1294815 Pulse generating circuits COMMISSARIAT A L'ENERGIE ATOMIQUE 19 April 1971 [23 Feb 1970] 21773/71 Heading H3P A device for producing rectangular pulses comprises a charged transmission line 18 having a low characteristic impedance connected via a switching arrangement 17, e.g. a triggered spark-gap, to a transmission line constituted by two sections 13, 14 and having a higher characteristic impedance. The two sections 13, 14 may be connected in parallel to the charging line 18 and adjusted to have a difference in transit time equal to the pulse period. Alternatively as in Fig. 3 (not shown), the sections (19, 20) may be connected in series with the pulse period corresponding to the transit time through one of the sections. The load 10, e.g. an image converter tube, Lerr or Pockels cells, may be connected at one of the ends of the two sections as in Fig. 1 or connected in series with the sections (Figs. 2, 5, not shown) or shunt-wise across one of them (Fig. 3, not shown). The charged line 18 may be a coaxial line or a flat transmission line (Figs. 6a, 6b, not shown) and the whole arrangement of charged line 18, spark-gap 17 and load line 13, 14 may be integrated into a unitary structure (Figs. 7, 8, not shown) to prevent parasitic reflections. The load line 13, 14 may be terminated on its characteristic impedance or provided with a further section (21, Fig. 3, not shown) for feeding further loads. A storage capacitor may be connected in front of the charging line 18.
Patent GB-1294865-A (GB)
IPC: C03B9/28
Filed: 1969-12-16
Abstract: 1294865 Blowing glass COMPAGNIE DE SAINT-GOBAIN 16 Dec 1969 [17 Dec 1968 18 June 1969] 61223/69 Heading C1M A hollow glass body is formed by initially forming a preliminary blank furnished with a blowing orifice, holding the blank in a sleeve mould, blowing the blank internally and simultaneously subjecting the major part of its external surface to the repeated actions of localized gaseous counter pressures and thermal control. Square cross-section bottles may be produced by suspending a blank from a rotating sleeve mould 1 and blowing. Two devices 2 for generating gaseous counter pressures and two thermal regulating devices 3 are located at 90 degrees intervals around the mould 1 and oscillate towards and away from the blank as it rotates by virtue of a lever-and-cam system 10, 13, 14. As the moulding proceeds a support 12 is gradually lowered causing the devices 2, 3 to increase their amplitude of oscillation and lowering a jack 4 on which the blank rests, until the jack reaches its maximum depression, at which point the controllers 3 are controlled so that the bottle has sufficient rigidity to retain its shape. Coolers 28 are provided to act on the neck of the bottle. Cylindrical bottles may be produced at high speed on an apparatus (Figs. 3 and 5) which includes a plurality of sleeve moulds 34 mounted on a movable chain 33. The blanks carried by the moulds 34 are blown by blowing tubes 39 controlled by the action of a cam 45 on shafts 40 of the tubes, which shafts are mounted on a chain 42. While being blown the blanks pass along a corridor between two lateral sets of formers comprising devices 47 for generating gaseous counter-pressures and devices 48 for thermal conditioning. A chain 51 is located below this corridor to provide supports 52 for each moulding, the height thereof being controlled by a cam 55. When the bottles have been formed a cam 56 causes the jaws of the corresponding sleeve mould to open, thus releasing the bottles on to a conveyer 57.
Patent GB-1295248-A (GB)
IPC: G05D21/02
Filed: 1969-01-14
Abstract: 1295248 Automatic control ENGLISH CLAYS LOVERING POCHIN & CO Ltd 14 April 1970 [14 Jan 1969] 2258/69 Heading G3R The magnitude of a process variable is compared with a desired value and a correcting process variable is varied at a predetermined rate for a time dependent on the magnitude of the error at the end of that time and then maintained constant for a time which is the same between succeeding error corrections. As applied to controlling the addition of a reagent to a suspension of china clay in water for effecting deflocculation or bleaching, the treated suspension is examined photo-electrically to operate a servosystem which continuously adjusts a potentiometer 1, Fig.15, in accordance with the degree of deflocculation, for example. Potentiometer 1 is arranged in a bridge circuit with a potentiometer 2, which is set manually in accordance with a desired degree of deflocculation, so that an error signal is produced by a differential amplifier 3. According to its sense, the error signal is applied through an amplifier 4 and inverter 5 to trigger, through a gating circuit 6 or 7, a transistor-relay controlled triac 8 or 9 to operate, periodically, a D.C. motor (not shown) in the appropriate direction to correct the error by adjusting the rate of supply of reagent from a pump. The correction is made periodic by a bi-stable transistor circuit 10 controlling gating circuits 6 and 7. A signal dependent on the magnitude of error but independent of sign is derived by a rectifier-amplifier 11 and applied through a variable gain amplifier 12 and limiter 13 to control the voltage to which a condenser charges in a linear transistor timing circuit 14. The charging time, which is thus dependent on the magnitude of error, determines the "on" time of the bi-stable circuit 10 and thus the period of adjustment of the rate of supply of  reagent. The "off" time of the bi-stable circuit 10 is determined by another transistor timing circuit 15 which is manually set by a potentiometer 16 so that the interval between adjustments of the rate of supply of reagent is sufficient to enable the full effect of the adjustment to influence the measurement. Errors which exceed upper or lower limits determined by the setting of potentiometers 17 and 18 respectively cause, through amplifiers 24, 25 having slight positive feedback, triggering of a transistor-relay controlled triac 19 to operate an alarm. Lamps 20-23 indicate the sense of any correction and/or whether the error exceeds either limit. Detailed circuits of suitable timers, multi-vibrator and stabilized supplies employing transistors, thyristors, triacs and Zener diodes are described.
Patent GB-1310354-A (GB)
Title: Electrical barrier devices
IPC: H02H9/00
Filed: 1969-07-03
Abstract: 1310354 Automatic voltage and current regulation R J REDDING 29 June 1970 [3 July 1969] 33504/69 Heading G3X [Also in Division H2] A barrier device generally similar to that described in Specification 977913 comprises serially-opposed Zener diodes Z1, Z2, currentlimiting resistors R1, R2 and an additional Zener diode Z3 connected across the circuit to be protected. This arrangement performs the same duty as a known device having duplicated resistors and Zener diodes, Fig.1, (not shown) and possesses advantages which are discussed in relation to that device. For some applications, the diode Z3 may be replaced by one or more ordinary diodes and an embodiment is described, Fig.3, (not shown), having two such diodes connected in anti-parallel manner across the lines 1, 3 and X, Y. The embodiment shown in Fig.4 adds a resistor R3 to the line 1-3 to enable the value of resistor R1 to be reduced, a diode D1 also being added to prevent diode Z1 being overloaded. The design and operation of this embodiment is explained. Application of the invention to a four wire circuit is described, Fig. 5 (not shown), the additional Zener diode (Z2) being connected between the common wire (4) and respective ones (3A, 3B, 3C) of the other three wires via respective diodes (D1) seriallyopposed thereto. A further resistor (R2) is included in each of the other three wires (3A, 3B, 3C), which are also connected to the common wire (4) through respective diodes (D2) to cater for reversal of supply polarity. Three further embodiments are described in which:- (1) the additional Zener diode is connected between earth and the mid-point of a diode bridge comprising two pairs of serially-opposed diodes connected between the two lines of the circuit, Fig. 6 (not shown). (2) the additional Zener diode is connected between earth and the two lines of the circuit through respective Zener diodes serially opposed thereto, Fig.7 (not shown) (3) the additional Zener diode is connected directly between earth and one line of the circuit, the connection to the other line being via a seriallyopposed Zener diode, Fig. 8 (not shown). This embodiment is used when the two lines are at differing voltages above earth.
Patent GB-1324028-A (GB)
Title: Teleprinters
IPC: B41J1/32
Filed: 1970-10-22
Abstract: 1324028 Selective printing KOMBINAT MEBGERATEWERK ZWONITZ GERATEWERK KARL-MARX-STADT 22 Oct 1970 50201/70 Heading B6F [Also in Division F2] A teleprinter comprises a discontinuously rotating type wheel 1 mounted on a shaft 2, and an inertia body 7 coupled to the shaft 2 to damp oscillations which occur at the termination of fast rotary movement when a projecting member 3 fixed to the shaft strikes against a stop 4. The inertia body is a wheel 7 rotatable on the shaft 2 and coupled to it by a coil spring 8. When the shaft 2 and type wheel 1 are rotating in the direction a torque is transmitted through the spring 8 to the inertia wheel 7, which therefore rotates in the same direction. When the type wheel 1 is stopped suddenly by the stop 4, the inertia wheel 7 continues to rotate in the direction a but the type wheel 1 rebounds in the direction b. The coil spring 8 connecting the two wheels 1, 7 binds on to its coupling cylinders 9, 10 and the frictional energy so produced decelerates both wheels.
Patent GB-1327281-A (GB)
Title: Outboard motors
IPC: B63H23/04
Filed: 1971-04-19
Abstract: 1327281 I. C, engine driving gear F E SHEPPARD 19 April 1971 [17 Feb 1970] 7509/70 Heading F1B [Also in Division B7] In an outboard motor propulsion unit comprising a power unit 10, propeller 12 and an upstanding transmission shaft 17, the power unit is a fourstroke internal combustion engine having a cam shaft 15. The engine is mounted with the cam shaft in an upstanding attitude and coupled directly to the transmission shaft.
Patent GB-1328065-A (GB)
Title: Multi-colour xerographic apparatus
IPC: G03G15/16
Filed: 1972-01-19
Abstract: 1328065 Registered transfer PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 19 Jan 1972 2654/72 Heading G2H In the production of a multicolour image by the successive registered transfer of individual colour images to a single sheet, a selenium drum 17, a sheet supply roll 4 and a sheet withdrawal belt 12 are actuated by a motor 1, Fig.1 (not shown) and xerographic .images produced on the drum are transferred to a sheet 56 held by a rotary gripper arm 37 (having gripper flaps 39 and 40) which is releasably magnetically coupled (together with a programme cylinder) to the drum. Rotation of the programme cylinder effects operation of a presser 53 (to supply a sheet), the sheet gripping action (by means of a pin 45), the sheet releasing action (by means of a pin 46), disengagement of the magnetic coupling, halting of motor 1 and delayed switching off of a transfer electrode 50 and a heat fixing device. The sheet is brought into contact with the drum by the action of a guide lever 49 lifted by means of a cam disc 47. On opening of the gripper mouth to release the sheet, the forward edge of the sheet is blown out of the gripper mouth by air from a nozzle 55. The reproduction system is operated with the aid of a steel band 26 which is drawn onto and from a reel 25 by means of pawl 30 and a stop 54.
Patent GB-1330786-A (GB)
Title: Racks for storing wine bottles
IPC: A47B73/00
Filed: 1972-01-28
Abstract: 1330786 Bottle racks HOUSE OF SEAGRAM Ltd 28 Jan 1972 [28 Jan 1971] 3399/71 Heading A4H A plastics bottle rack is assembled from a plurality of units inter-connected by separate connector pieces 11, each unit supporting a single bottle and being formed from two identical halves. Each half-unit comprises two half rings joined by longitudinal members 10, and the twohalf units are connected by spigots 8 and sockets 9. Projections 14 on pieces 11 are received in slots 13 in the rings, and composite projections 6, 7 in the units are received in recesses 15 in pieces 11. Two pieces 11 are moulded integrally with each half-unit and are connected to the halfrings and to one another by breakable bridges 12, Fig.1, (not shown).
Patent GB-1332022-A (GB)
Title: Magnetic recording media
IPC: G11B5/71
Filed: 1970-01-20
Abstract: 1332022 Magnetic recording tapes BADISCHE ANILIN- & SODA-FABRIK AG 19 Jan 1971 [20 Jan 1970] 2538/71 Addition to 1329116 Heading H1H The surface of a magnetic recording tape remote from the magnetic layer is provided with a pattern of raised dots made of a binder and a non-magnetisable pigment or filler, with a coefficient of friction of more than 0À25 (as defined) when in contact with the magnetic layer and a surface-roughness R t  (as defined) below 0À5Á. No tackiness exists between the pattern of dots and the magnetic coating at the operating temperature of the tape. The dots may be 0À3-5Á high, irregularly- or regularly-shaped e.g. circular or rectangular, and gravure-printed on the substrate. The area of each dot may be 0À001-0À005 mm.<SP>2</SP>, and the shape, position and number of dots is preferably such that no dot can fit into the spaces between other dots. This can be avoided by ensuring that the area covered by the dots is more than the uncovered area. The dots may be made of a pigment e.g. TiO 2  ZnO BaSO 4  or non-magnetic Fe oxide dispersed on a polymeric binder which may be the same as that used in the magnetic layer. Many binders are specified, including vinyl chloride and/or vinylidene chloride copolymers acrylate or methacrylate polymers, polyvinyl formats, polyesters, polyamides, epoxy resins and polyurethanes. Magnetic materials specified are gamma Fe (III) oxide, CrO 2  and alloys of Fe, Ni and Co. In examples, dispersions of TiO 2  in either polyurethane or polyvinyl formal are printed as circular dots by a gravure roll onto a magnetic web, which is then slit into tapes. The pattern of dots ensures that air trapped between layers of tape during rapid winding can escape at the sides of the reel.
Patent GB-1337976-A (GB)
Title: Protective shield for an aerial
IPC: H01Q1/42
Filed: 1971-04-19
Abstract: 1337976 Aerials BRITISH BROADCASTING CORP 19 April 1971 [17 Feb 1970] 7597/70 Heading H4A A radome component consists of a dielectric sheet with an associated parallel grating made up of axial parallel conductive elements of helical or zig-zag shape. The grating is intended to reduce reflection of waves having their electric field vectors parallel to the axes of the elements from the sheet. The conductive elements may be placed on one or on each side of the sheet, or they may be embedded therein. In one embodiment, for use at 650 MHz., a cylindrical sheet of glass-reinforced plastics material about 8 mm. thick and 910 mm. in diameter has 25 helix elements affixed to its inner surface parallel to its axis. Each element consists of a single 23 S.W.G. wire helically wound around a rod made of non-conducting plastics material. Alternate helices may be oppositely handed, and they are made at least one half of the operating wavelength long, the spacing between them being less than a quarter of that wavelength.
Patent GB-1344181-A (GB)
Title: Fastening mechanism for doors
IPC: E05B65/16
Filed: 1972-05-30
Abstract: 1344181 Locks BLOXWICH LOCK & STAMPING CO Ltd 30 May 1972 [1 May 1971] 12611/71 Heading E2A A fastening for a door comprises a rotatable operating bar with at one or on each end a cam 22 with spaced lobes and a head 26 and collar 19; surfaces 12, 13 of the cam are inclined as are the internal surfaces of the head and collar; a keeper 1 has complementarilyinclined internal and external surfaces whereby when the cam is inserted in a notch in the keeper and turned the complementarilyinclined surfaces engage and the fastening is secure.
Patent GB-1346808-A (GB)
Title: Process control systems
IPC: G05B19/04
Filed: 1971-09-14
Abstract: 1346808 Automatic control systems STRUTHERS-DUNN Inc 14 Sept 1971 42800/71 Heading G3R To reduce the effect of noise in a process control system powered by a cyclical power source, the system operates in the time sequenced steps of 1, sensing a control parameter at the time the power voltage is at its maximum amplitude, 2, storing the signals and deriving revised process control commands, and 3, executing said commands at the time of zero voltage. Clock pulses I, II, III are produced at the appropriate instants in both half cycles of an A.C. supply 10, the first being used to enable flip-flop devices 15 which at that instant change over or not according to signals from unspecified sensing devices 14. Memory 23 and control circuits 24 are then enabled by the pulses II to control further flip-flops 26 which are enabled by the pulses III and operate switches 30, 31 controlling correcting devices 32, 33 such as electric motors or solenoids. Gates 19...22 and 27...29 prevent the passage of signals until a "reset" device 25 detects that a minimum voltage has been reached after initial switch-on, before which the flip-flops are in an indeterminate state. The pulses II occur at a sufficient time after I for transients to subside. (For Figures see next page)
Patent ID-29634-A (ID)
Inventor: SCHIRMANN JEAN-PIERRE
IPC: C01B21/16
Filed: 1999-07-09
Abstract: The invention concerns a method for preparing methyl ethyl ketone azine which consists in: (a) reacting ammonia, hydrogen peroxide and methyl ethyl ketone in the presence of a working solution to form an azine; (b) separating the working solution and the azine possibly containing methyl ethyl ketone which has not reacted and butanol-2; (c) recycling the working solution to step (a) after optional treatment; (d) separating the methyl ethyl ketone and the butanol-2 from the azine. The butanol-2 of the flow in step (d) is either purged or dehydrogenated in MEK and recycled at step (a).
Patent ID-27448-A (ID)
Inventor: HEIDEMANN THOMAS
IPC: B01J23/22
Filed: 1999-08-17
Abstract: A coated catalyst for the catalytic gas-phase oxidation of aromatic hydrocarbons comprises, on an inert nonporous support, a catalytically active composition comprising a defined amount of vanadium oxide, titanium dioxide, a cesium compound, a phosphorus compound, and antimony oxide, wherein the catalytically active composition is applied in two or more layers and where relative to the inner layer or inner layers the outer layer has an antimony oxide content which is from 50 to 100% lower and wherein the amount of catalytically active composition of the inner layer or layers is from 10 to 90% by weight of the amount of catalytically active composition, and can be used for preparing carboxylic acids and/or anhydrides, in particular phthalic anhydride; also specified is a production process for such catalysts.