baber/WOPTO huggingface dataset:
Patent GB-1233234-A (GB)
IPC: G01B7/00
Filed: 1968-10-23
Abstract: 1,233,234. Measuring displacements electrically. SIGMA INSTRUMENT CO. Ltd. Oct.23, 1969 [Oct.23, 1968], No.50426/68. Heading G1N. The notional radius of a rotating, fluted, cylindrical body P (Fig. 1) is sensed by a stylus 1 and converted by transducer 2 into a corresponding voltage whose peak value is stored on a first capacitor 6 and switched periodically at 9 to charge a second capacitor 8, followed by discharge of first capacitor 6 by switch 11. The switches are operated cyclically by field effect transistors controlled by a multi-vibrator whose frequency allows capacitor 6 to become fully charged from the transducer 2 in accordance with points on the notional radius 5 before switch 9 is closed. The peak valve is indicated at 14 and used at 15 to control further operations on body P. The transducer 2 may comprise a differential inductor.
Patent GB-1233893-A (GB)
IPC: B41F27/12
Filed: 1967-04-01
Abstract: 1,233,893. Mounting printing plates. LINOTYPE & MACHINERY Ltd. 20 June, 1968 [1 April, 1967], No. 15032/67. Heading B6C. Flexible printing plates 41, 4<SP>2</SP>, are secured to a printing cylinder 3 by wedging the leading and trailing edges 110, 210 and 111, 211 into simple inclined slots 1, 2<SP>1</SP> formed in the cylinder. A peg 6, 7, 8 or 9 bridges each slot for plate location purposes each leading or trailing edge being provided with a peg-engaging slot. Additional slots 2, 1<SP>1</SP> are formed in the cylinder to allow for plate mounting independent of the direction of operative rotation of the cylinder.
Patent GB-1239454-A (GB)
IPC: F04C2/107
Filed: 1968-10-18
Abstract: 1,239,454. Universal joints. NETZSCH MASCHINENFABRIK GEB. 18 Oct., 1968 [21 Oct., 1967], No. 49571/68. Heading F2U. [Also in Division F1] A toothed coupling comprises two members rotating about axes which intersect but are inclined at an angle to one another, the two members respectively having external and internal interengaging teeth 40, 38, Fig. 2, and thrust faces 52, 58, the thrust face of one member being of conical form and that of the other being such as to engage it along a generatrix. Hub 32, Fig. 2, which has conical thrust faces 50, 52, and external teeth 38 is splined to shaft 30. The mating teeth 40 are connected to a rotor 12 by springs 44. If the axial force is directed to the right in Fig. 2 the hub 32 rolls round the thrust plate 46 so that in any position of rotation contact is made along a different generatrix thereby permitting the penetration of lubricant between the thrust faces. In other embodiments the housing thrust faces are conical and the hub thrust faces are flat or all thrust faces are conical. The couplings may drive a rotor (12), Fig. 1 (not shown), in a pump in which the rotor rotates about its axis whilst the axis orbits about the axis of the pump.
Patent GB-1239761-A (GB)
IPC: C07C39/06
Filed: 1967-08-14
Abstract: 1,239,761. Preparation of alkyl phenols. MIDLAND-YORKSHIRE TAR DISTILLERS Ltd. 26 July, 1968 [14 Aug., 1967], No. 37199/67. Heading C2C. A process for the production of a second alkyl phenol by transalkylation of an alkyl phenyl ether or a first alkyl phenol comprises passing a mixture of the first alkyl phenol or of the alkyl phenyl ether with phenol itself in the vapour phase over a catalyst of alumina. The most preferred temperature in the first case is 510‹ C. and in the second case 380‹ C. The molar ratios of alkyl phenol or alkyl phenyl ether to phenol itself in the feed are preferably from 1:3 to 2:1. The examples describe the preparation of o, m, and p-cresols from xylenols; cresols and xylenols from 2,3,5,6-tetramethyl phenol; o-cresol from anisole; and 2-ethyl phenol from phenetoles.
Patent GB-1252769-A (GB)
IPC: G01N33/543
Filed: 1968-12-24
Abstract: 1,252,769. Immunological reagents. MILES LABORATORIES Inc. 24 Dec., 1968 [28 Dec., 1967], No. 61454/68.'Heading B1X. [Also in Divisions C3 and C6] Particles capable of chemical bonding to biological material, for example antigens, including enzymes, or antibodies or haptenes comprise the reaction product of protein surfaced water-insoluble carrier particles with an alpha-beta-olefinically unsaturated aldehyde. The carrier particles may be microbial cells, virus particles, red blood cells, or proteinsurfaced polymer particles and may have maximum size 0.2 to 10 microns. Cellular carrier particles retain their natural immunological activity. The aldehyde may be acrolein (exemplified), methacrolein, 2 butenal (crotonaldehyde). The reactive particles can be recovered and dried by lyophilization or reacted with the biological material to form reagents for use in immunological testing or in enzymic conversion processes. The reagents themselves can be dried for storage.
Patent GB-1257393-A (GB)
IPC: G01L9/00
Filed: 1969-03-18
Abstract: 1,257,393. Electric transducers. KISTLER INSTRUMENTE A.G. March 18, 1969 [March 25, 1968], No. 14188/69. Heading G1N. In a measuring transducer (e.g. for measuring pressure, force or acceleration) a corresponding force is applied to a transducing element 25 (e.g. Piezo-resistive, Piezo-electric or strain gauge element) via an element 28 which is provided with a seating and sealing member 23 which pre-stresses the transducing element, the element 28 having a shape such that it is able to rock to suit the opposed bearing surfaces of the elements 25, 28. As shown, the element 28 is semispherical and the seating member 23 is a ring- diaphragm, the inner diameter of which is varied depending on the properties of the transducing element. The seating member may alternatively be a tubular spring having a shaped-flanged end providing a seating for the element 28, Fig. 5 (not shown). The transducing element is cylindrical and may be provided with a force-transmitting element and a respective seating member at each end, Fig. 7 (not shown). One of the forcetransmitting elements may act as a bearing element in a similarly shaped cavity in the transducer casing and electrical connection to the transducing element may be along surface grooves Fig. 6 (not shown).
Patent GB-1257537-A (GB)
IPC: H01F38/42
Filed: 1969-12-10
Abstract: 1,257,537. Transformers. MATSUSHITA ELECTRIC INDUSTRIAL CO., Ltd. 10 Dec., 1969 [12 Dec., 1968; 18 June, 1969], No. 60388/69. Heading H1T. A flyback transformer having a ferrite core 1 with an air gap 2 has a member 5 made of temperature sensitive ferrite inserted in the air gap. As the temperature increases and reaches a predetermined level (e.g. due to overload &c.) the member 5 becomes paramagnetic so giving the effect of an increased gap 2. The member 5 may be secured in a hole or slot in a gap face.
Patent GB-1257778-A (GB)
IPC: G01M11/02
Filed: 1967-12-07
Abstract: 1,257,778. Fourier analysis apparatus. NATIONAL RESEARCH DEVELOPMENT CORP. March 7, 1969 [Dec. 7, 1967], No. 55779/67. Heading G1A. [Also in Division G2] Fourier analysis apparatus for measuring the one-dimensional spatial frequency spectrum of an image produced for example in radioagraphy (using a fluorescent screen) or by means of a lens or other optical element or system to be tested, utilizes means to produce the sum of the squares of the sine and cosine transforms of the image. In the arrangement shown, a mirror tunnel formed by two parallel plane mirrors forms virtual images VI, of an image OI to be analysed. Lens L forms images in front of three spaced masks S1 S2, S3 behind each of which is positioned a photo-sensitive device such as a photo-multiplier P1, P2, P3. Masks S1 and S3 are of sinusoidally varying transmission or have a sinusoidal variation in transparent area against an opaque background, in one direction. These masks are displaced through 90 degrees relative to one another, and as a result the outputs of detectors P1 and P3 represent the sine and cosine transforms of the image. Mask S3 has a transmission characteristic whereby the mean luminance of the image is detected, which enables, the analyser to make band-pass rather than simply low-pass measurements and to generate a D. C. output signal facilitating processing. This mean luminance signal is subtracted from each of the transform signal in difference circuits 10, 11 and the difference signals squared and summed in circuit 12. In an alternative image duplication system, a prismatic beam-splitter or a large collimating lens and a number of smaller imaging lenses may replace mirror tunnel M1, M2. In another embodiment four masks are used, one pair containing alternate half cycles of sine wave and another pair, those of a cosine wave. The output signals of each pair are respectively subtracted to give the transform signals. The system can analyse any image including those formed by a scanning process. The bandwidth of the measurement can be varied as required, since it is related to the mask dimensions. When a dynamic image is analysed, a servo mechanism is used to maximize the output from the cosine transform filter.
Patent GB-1258479-A (GB)
IPC: B29D30/06
Filed: 1969-03-21
Abstract: 1,258,479. Moulding tyres. FRIED KRUPP G.m.b.H. 21 March, 1969 [23 March, 1968], No. 15035/69. Heading B5A. A tyre curing press includes mould parts 2, 4, a shaping bladder 5 connected between rings 6, 7, the beads of a tyre blank 18 being received by the ring 7 and a further ring 10, both rings 7, 10 being movable from the mould parts 2, 4 to centre the blank, and control means which maintains the spacing between the blank and the said mould parts equal during mould closure. The part 2 is stationary and the part 4 vertically movable; the rings 6, 7 and 10 are vertically movable hydraulically by pistons 8, 9 and 11 within cylinders. When a blank is placed over the bladder and on to the ring 7, Fig. 1, the ring 10 is driven downwards to engage the ring 6 and centre the blank, Fig. 2 (not shown). The mould part 4 and the ring 10 are then moved downwards together until the ring 6 and a control rod 16 simultaneously engage the ring 7 and stop 17 respectively. The control rod depends from a piston 14 within a cylinder 13, the outlet of which connects via lines 15, 23 with the cylinder 12 of piston 11. The mould is finally closed by further downward movement of the mould part 4 which forces the piston 14 upwardly within its cylinder causing hydraulic fluid to pass into cylinder 12 below its piston 11; the pistons 11, 14 are so related that piston 11 is forced upwardly at half the speed of piston 14, and since the ring 7 is also forced downwards, the blank remains centred between the mould parts 2, 4.
Patent GB-1259358-A (GB)
IPC: H05B33/08
Filed: 1969-04-18
Abstract: 1,259,358. Transistor switching circuits; non-contact-making relays. G.T.E. LABORATORIES Inc. 18 April, 1969 [19 April, 1968], No. 20035/69. Headings H3B and H3T. [Also in Division H2] The impedance of the primary winding 11 of a transformer 10 is lowered, so that an electroluminescent device 15 is operated by an A.C. source 16 by rendering conductive a transistor 23 which then connects the junction of two diodes 20, 21 connected across the secondary winding 12 to a tapping thereon so as to short circuit the secondary. Control signals are applied at 14 to the transistor, and when it is non- conductive, the secondary is open circuited and the primary impedance is sufficiently high to prevent the operation of the device 15. The electroluminescent device 15 may have an impedance of 50 k#; the source 16 may be 90 V. at 2 kc/s.; and the extreme values of primary impedance maybe 2k# and 150k#. The device 15 may form part of a display array.
Patent GB-1265402-A (GB)
IPC: G11B20/14
Filed: 1969-03-28
Abstract: 1,265,402. Self-clocking memory system. R.C.A. CORPORATION. 28 March, 1969 [19 April, 1968], No. 16277/69. Heading G4C. The invention relates to a generating system producing clock pulses synchronized with data recorded in a self-clocking code on a magnetic tape or drum. Data recorded on a drum having a transition in either direction in the middle of a bit cell to represent a " 1 " and a transition between bit cells containing successive " 0's " (Fig. 2a) is applied in true and inverted form to a digital differentiator 10, supplied also with a train of clock pulses (Fig. 2b). The differentiator produces output pulses commencing with every transition of the input signal and terminating at the first following negative-going transition of the clock pulse. The output pulses are applied to a flip-flop 20 reset by a signal e. The flip-flop output is applied to a voltage controlled delay circuit producing a pulse delayed by a desired period from the start of the pulse, the delayed pulse also resetting the flip-flop. The output pulses synchronize the oscillator 30. The oscillator control voltage is fed back to control the length of delay. The oscillator feeds a flipflop clock oscillator 34 which produces clock pulses (Fig. 2f ) having a negative excursion centred on the " 1 " transitions and a positive excursion centred on the transitions between successive " 0's." A variation in speed of the drum or tape causing the transitions to be more closely or more widely spaced and thus causing the clock pulses to be not centred correctly is corrected by the variation in the delay. A circuit 50 is used to correct the polarity of the clock pulses. If the circuit detects a transition between adjacent " 0's " when the clock pulse is at a negative excursion a signal is sent on line 55 to insert the clock pulses to a correct polarity. Circuit 40 and flip-flop 44 generate non-return to zero information signals where a " 1 " is represented by a first voltage level and a " 0 " by a second voltage level (Fig. 2i).
Patent GB-1265637-A (GB)
IPC: B02C17/06
Filed: 1970-12-08
Abstract: 1,265,637. Tube mills. ALLIS-CHALMERS MFG. CO. 8 Dec., 1970 [11 Dec., 1969], No. 58228/70. Heading B2A. A shielding device 40, Fig. 1, in a division head assembly 25 of a tube mill prevents migration of media from a fine to a coarse compartment. The tube mill comprises a rotatably-mounted cylindrical shell 1, having a compartment 4 containing media (rods 6) for coarse grinding and a compartment 5 containing media (balls 7) for fine grinding, the two compartments being separated by the division head assembly 25 perpendicular to the rotational axis of the shell, the assembly comprising a pair of spaced-apart annular transverse bulkheads 26, 27, Fig. 2, each having a central opening 37, 38. The openings are connected by an axiallyextending truncated cone-shaped passage whose central axis coincides with the central axis of the shell, the taper of the cone being directed towards the coarse grinding compartment. The shielding device 40 is mounted in the cone-shaped passage and presents a surface which blocks a central portion of the passage and thus prevents reverse passage of the balls. The shielding device has a channel through it to permit passage of material from the coarse to the fine grinding compartment. As described, the shielding device is a disc supported by mounting blocks, 41 Fig. 2, arcuately spaced around its periphery and having a diameter larger than the smaller end of the conical passage. The mounting blocks may be integrally-formed with the disc. The coneshaped passage may comprise a replaceable liner. As shown the bulkheads include liners 28, 29, and liners 30, 35 define the passage, Fig. 2. The mill includes a feeder 15, a discharge screen 19, lifter vanes 20, a discharge trunnion 12 and discharge cone 21, and is driven by a gear 13 secured (as shown) around the inlet end of the casing, or around the feed trunnion 11.
Patent GB-1265806-A (GB)
IPC: G02B7/182
Filed: 1968-05-31
Abstract: 1,265,806. Telescope mirror support. SIR HOWARD GRUBB PARSONS & CO. Ltd. May 30, 1969 [May 31, 1968], No. 26146/68. Heading G2J. A telescope mirror 2 has a major proportion of its weight supported by a pressurized pneumatic bag system and the remainder by three lever systems acting on members 14 attached to the side of the mirror. Each system comprises a spring-loaded lever 8 which may be rotated about a hinge bracket 9 by advancing or retracting a stop 10, either manually or by a motor 12, to change the thrust of a rod 7 on the member 14. In a modification Fig. 3 (not shown) a micro-switch (15) is attached to the lever 8 and operated by the stop 10 so that if the pressure in the system rises above the desired level the switch will operate means to reduce the pressure. The pneumatic bag system may be a simple air bag supporting a fibre glass sheet 4 mounting the mirror through vertical tubular spacers, or a membrane (18), Fig. 4 (not shown) may be stretched over a recess in the support framework and air pumped into the gas tight space (19) formed thereby. A similar gas tight space may be formed Fig. 5 (not shown) between member 4 and the framework 1 by using flexible seals.
Patent GB-1266779-A (GB)
IPC: C08F4/30
Filed: 1969-07-18
Abstract: 1,266,779. Polymerization process. BADISCHE ANILIN- & SODA-FABRIK A.G. 18 July, 1969 [20 July, 1968], No. 36232/69. Heading C3P.  One or more olefinically unsaturated organic compounds are polymerized in an organic solvent with a salt of peroxydisulphuric acid which is soluble in the organic solvent as a polymerization initiator. In the examples acrylonitrile, methyl acrylate and sodium methacryloyloxypropyl sulphonate are copolymerized in dimethyl formamide using one of the following as initiator:-bis - (n - butylammonium)-, bis-(benzylammonium)-, bis-(dimethylammonium)-, bis-(n-propylammonium)-, bis- (N - methyl - N - cyclohexylammonium)-, bis- (tert. - butylammonium)-, bis - (tri - 2 - hydroxyethylammonium)-, bis - (morpholino)-, bis - (pyridinium)-, bis - (pyrrolidinium)-, and bis - (N - methyl - N - benzylammonium) - peroxydisulphate.
Patent GB-1207739-A (GB)
Title: Electrolytic cells
Inventor: DEY ARABINDA NARAYAN
IPC: H01M2/16
Filed: 1968-06-14
Abstract: 1,207,739. Electrolytic cells. P. R. MALLORY & CO. Inc. 5 May, 1969 [14 June, 1968], No. 28598/68. Heading H1B. A rechargeable electrolytic cell comprises a cathode containing Group I B  or VIII metal compound, preferably the chlorides and bromides of Cu, Ag or Ni, an anode of an alkali metal, preferably Li, and an electrolyte comprising an hydrous solution of a lithium aluminium complex compound, preferably LiAlCl 4 , in an aprotic organic solvent, preferably propylene carbonate, 8-butyrolactone, dimethylsulphoxide, and dimethylformamide. A cationexchange membrane or filter is provided which hinders or prevents the self discharge of the cathode. Preferably the cation exchange membrane is made with modified polystyrenes, cross-linked with divinylbenzene or polyacrylates and contains sulphonaic, carboxylic, phosphonic, phosphinic arsonic or selenonic functional groups. Suitable backing materials for the membrane include polyethylene, polypropylene and cellulose.
Patent GB-1288072-A (GB)
IPC: H02P7/292
Filed: 1969-02-12
Abstract: 1288072 Drawing curtains GORILLA ENG & MACHINERY Ltd 13 Jan 1970 [12 Feb 1969] 7528/69 Heading A4B [Also in Divisions F2, G1, H2 and H1] Cords 20, 21 for operating curtains are pressed against a wheel 16 driven by a reversible electric motor 8 by means of spring-pressed grooved pulleys 17, 18. A casing 14 has slots 22, 23 so that the cords can be pressed into position between the wheels 16, 17, 18. Each cord carries a stop 26a, 26b respectively co-operating with limit switches 10, 11 controlling the motor 8. In a modification, the cords are wrapped around a double-grooved wheel (116) and over several single grooved pulleys (46.. 51), Fig.4 (not shown).
Patent GB-1290325-A (GB)
IPC: F16K1/226
Filed: 1968-10-15
Abstract: 1290325 Valves SERCK INDUSTRIES Ltd 8 Oct 1969 [15 Oct 1968] 48847/68 Heading F2V A butterfly valve comprises a seat ring 16 free to move in a plane perpendicular to the axis of the passage 11 through the valve, and a closure member 17 mounted for pivotal movement about an axis 18 offset both from the plane of the seat ring and from the axis of the passage, the closure member having a partspherical peripheral surface the centre of which lies on the axis of the passage at a position offset from the plane of the seat ring by the same distance as the axis 18 when the closure member is  perpendicular to the axis of the passage. The seat ring 16 and a sealing element 15 are resiliently deformable and mounted in a ring 14. The position of the axis 18 causes the peripheral surface of the closure member to lift away from the seat ring when the valve is opened.
Patent GB-1290647-A (GB)
IPC: F02P5/10
Filed: 1971-04-19
Abstract: 1290647 Timing ignition FORD MOTOR CO Ltd 19 April 1971 [3 March 1970 (2)] 22499/71 Heading F1B A diaphram vacuum servo comprises a housing 54, a pair of flexible annular diaphram members 66, 82 each mounted in the housing for independent movement relatively to each other and each defining with the housing a different vacuum chamber 80, 84 means 81, 42 connecting each of the chambers to a separate source of fluid at a pressure varying from a maximum essentially atmospheric pressure level to a minimum sub atmospheric pressure or vacuum level for reciprocating movement of each of the diaphram members as a result of the changes in pressure acting thereon, movable actuating means 86 operatively connected to a first one 82 of the diaphram members for movement therewith, first spring means 74 biasing a second one 66 of the diaphram members towards the other second spring means including a spring 106 operatively positioned between the members whereby movement of either of the members in one direction effects an increasing biasing force by the second spring means on the other of the members to effect a movement of the other of the members in the one direction and force transfer means 72 on the second diaphram member operatively engaged at times by the first member upon movement of the first member in one direction for limiting the movement of the first member in the one direction in a variable manner as a function of the position of the second member. As shown the actuating means 86 is connected to a spark timing control rod 24 of an ignition distributor 10.
Patent GB-1290996-A (GB)
IPC: G03F9/00
Filed: 1971-04-19
Abstract: 1290996 Photographic apparatus AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE and CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS 19 April 1971 [6 March 1970] 23298/71 Heading G2A In apparatus for forming an image of a pattern mask M on a U.V. sensitive layer S of a wafer P utilizing U.V. radiation from a source 7, there is provided a visible light source 6 which, together with a semi-reflector 2 is used to align the mask M and the wafer P, the wafer being mounted on an adjustable holder 5, and a microscope 10 being  positionable to view the mask M and superimposed wafer image. After alignment has been made, the microscope 10 is replaced by the U.V. source 7, the semi-reflector is removed and the exposure is made. The projection lens is formed of two elements 11, 12 having a gap therebetween, the semi-reflector being positioned in this gap. A condenser is provided in association with each source 6, 7. Alternatively a television screen may be provided to view the alignment step. In another embodiment Fig. 4 (not shown), the parts 12, P and 5 are at right angles with respect to their orientation in Fig. 2 and an additional concave mirror (3) utilized in the exposing step, is provided. The semi-reflector is also used in the exposure step. The semi-reflector strip shown may be replaced by two prisms.