baber/WOPTO huggingface dataset:
Patent GB-1163283-A (GB)
Title: Magnetic Head
IPC: G11B5/49
Filed: 1966-09-21
Abstract: 1,163,283. Magnetic heads. NIPPON COLUMBIA K.K. 21 Sept., 1966 [22 Sept., 1965], No. 42150/66. Heading G5R. A multiple magnetic head assembly comprising head elements 3-5 laminated together with spaces 6, 7 and carrying a common signal winding 8, has a different reluctance in each element whereby a single selected element may be rendered operational by saturating all but the desired one. The selection may be effected by magnets and/or windings. As shown, head elements 3, 4, 5 have apertures 11-13 formed in each leg, the central aperture 12, and preferably also the apertures 11, 13, increasing in width through the head unit. Windings 18, 19 are arranged round the apertures and the former energized to produce a flux encircling the central aperture 12 sufficient to saturate the vertical flux paths 14, 15 in each element. Winding 19, being in opposition to winding 18, is selectively energized to a degree sufficient to neutralize the effect of winding 18 in the desired element and to saturate those of less reluctance in the opposite direction, but unsufficient to overcome the saturation of the remainder. The widths of the lateral flux paths 16, 17 may be progressively increased to enhance the effect. In a modification, the saturating winding 18 is replaced by permanent magnets (Fig. 5, not shown) arranged in each element and of progressive pole strength.
Patent GB-1514557-A (GB)
Title: Colour television signal converter and process of conversion
IPC: H04N11/22
Filed: 1975-10-15
Abstract: 1514557 Television THOMSON-BRANDT 15 Oct 1975 [15 Oct 1974] 42342/75 Heading H4F A line sequential chrominance input signal is converted into a PAL type chrominance signal by supplying the input signal to a suppressed carrier modulator 18 which receives a sub-carrier wave from oscillator 12 directly and via a 90 degree phase shifter 11 line sequentially (switch 6). The resulting line sequential chrominance modulated (in phase quadrature) sub-carrier is then fed via a one line period delay 21 and via a line sequential sign-changing circuit 17 to a mixer circuit 26 (which also receives the luminance signal Y), to thereby derive at ouput 28 a PAL type chroma signal. Amplifier-adder 3 receives colour burst envelope pulses I which may have different amplitudes in consecutive lines. The input signal at 1 may be derived from HF or IF decoding circuits receiving SECAM (RTM) type signals, and the output signal at 28 may be fed via HF or IF coding circuits to an unmodified PAL receiver. Amplitude weighting circuits 9 and 10 which calibrate the relative levels of the two subcarrier waves may be connected as shown, or at input 1 to amplifier-adder 3 (Fig. 5, not shown) or before or after modulator 18 (Fig. 6, not shown).
Patent GB-1485969-A (GB)
Title: Connector elements
IPC: F16B7/04
Filed: 1974-10-01
Abstract: 1485969 Connecting tubes J GLANZER 1 Oct 1974 42503/74 Heading E2B An element for connecting together tubes, rods &c. comprises a block-like member 1, Fig. 1, having formed therein three grooves 4, 5, 6 of U-shaped section, the axes of which extend in mutually different directions and the walls of the block-like member defining the arms of each groove being of unequal length and releasable means e.g. grub screws 7, 8, 9 to prevent a tube, rod, &c. in the groove from disengaging therefrom. The grooves are preferably mutually perpendicular and the base of the grooves semi-circular. The block-like member 1 may have one corner chamfered off to provide a truncated portion having a face 12, Fig. 5, with a threaded bore 13 therein so that it may be joined to a similar truncated block member for connecting three mutually perpendicular pairs of parallel rods or tubes (Fig. 7, not shown).
Patent GB-1199304-A (GB)
Title: Apparatus for the Production of Chenille Yarn
Inventor: MCCARTHY DONAL EDWARD
IPC: D02G3/42
Filed: 1967-09-19
Abstract: 1,199,304. Covering cores by winding. D. E. McCARTHY. 19 Sept., 1967 [20 Sept., 1966], No. 42523/67. Heading B8G. [Also in Divisions D1-D2] In apparatus for the production of chenille yarn, at each station weft thread 11 is derived from a supply 88 on a single tubular spindle 80 mounted within a rotating housing 75 which extends completely over and around the surface area of the spindle so as to restrict the outward travel of the thread being unwound and minimize " ballooning." Weft thread passing through guide and brake ring 96 is wound as a helix 13 upon a travelling continuous composite tape 15 formed by two endless bands 18 and 20 passing axially through spindle 80 and carrying a warp thread (22, 24) along each side. The weft thread is cut lengthwise by a cutter, as at 36, a binder warp thread 25, 28 is supplied to each side of the weft and the foundation and binder warp threads are twisted together so as to produce simultaneously two lengths of identical chenille yarns 39 and 42.
Patent GB-1436739-A (GB)
Title: Apparatus for the collection of petroleum from deep water wells
IPC: E21B43/01
Filed: 1973-09-11
Abstract: 1436739 Liquid transfer apparatus COFLEXIP 11 Sept 1973 [13 Sept 1972] 42572/73 Heading B8E [Also in Division F2] Apparatus for transferring liquid from a well in deep water to a ship or other surface point comprises a lower bundle of flexible tubes 7-12 connected to a base 2 of the well and maintained in tension by floats 4-6 and independent upper flexible tubes 7a-12a connected between the tubes of the bundle and the delivery points. The upper end of the bundle is maintained below the zone of surface swell. To set up the apparatus a barge 18 is used having a cut-out part 19 and reels 20-24 on which the tubes are wound and from which they pass through drive devices 25 having caterpillar tracks to maintain a controlled feed. After securing the tubes 7-12 to a counter-base connection 3 it is lowered until the joint for attachment of the float 6 is reached to which while it is supported by a crane 27 the tubes are secured in recesses in spaced relation by collars 16. Lowering is continued until it is necessary to attach subsequent floats 5, 4 according to the water depth. The connection 3 is then secured to the base 2 in known manner and the buoyancy of the floats is adjusted to maintain the bundle of tubes in tension. The independent tubes 7a-12a are now connected between the top of the tubes 7-12 and the delivery points. The bundle may include flexible means for carrying electricity or compressed fluid. (For Figure 4 see next page.)
Patent GB-1402026-A (GB)
Title: Photographic cameras
IPC: G03B7/00
Filed: 1972-09-13
Abstract: 1402026 Exposure control circuit EASTMAN KODAK CO 13 Sept 1972 [13 Sept 1971] 42593/72 Heading G2A An exposure control circuit includes a lamp 222 which is lit if subject brightness is such that a flash or tripod exposure is required and is extinguished when the shutter closes to indicate the termination of exposure. On closing switch S' 1 a trigger circuit 218 is switched on to light lamp 222 if the illumination of a photo-conductor 202 is low. When a shutter opening blade (44), Fig.1 (not shown) is released a timing switch S' 2  is opened, a timing capacitor 200 charges up, and switches off a trigger circuit 192 which de-energizes a coil 194 to release a shutter closing blade (46), and switches off trigger circuit 218 to extinguish lamp 222. The charging of timing capacitor 200 is controlled by a photo-conductor 198 and, if flash is used, by resistors 226 and 230 selected according to object distance. In Fig.2 (not shown), a photo-conductor (102) corresponding to photo-conductor 202 automatically sets a diaphragm aperture (25), Fig.1, via a differential amplifier (110) and an electromagnet (36) and correspondingly adjusts an aperture (29) located before the photo-conductor (102) and a shutter timing photo-conductor (98). At the end of exposure the apertures (25, 29) are automatically reduced to their minimum values.
Patent GB-1339428-A (GB)
Title: Thrust reversing of spoiling in a jet propulsion engine
IPC: F02K1/58
Filed: 1970-09-07
Abstract: 1339428 Deflecting propulsion jets GENERAL ELECTRIC CO 7 Sept 1970 [2 March 1970] 42748/70 Heading B7G  The disclosure is identical with that of Specification 1,258,148, but the claims differ. Reference has been directed by the Comptroller to Specification 1,258,148.
Patent GB-1318368-A (GB)
Title: Magnetic igniters
IPC: F23Q2/28
Filed: 1970-09-08
Abstract: 1318368 Magnetic igniter R HALM 8 Sept 1970 [11 Sept 1969] 42855/70 Heading F4F [Also in Divisions H1 and H2] To obtain increased armature breaking speed with long life contacts of hard material in an igniter, especially for use in a pocket lighter, which produces a spark by means of an induction coil 4, 5, the pressure exerted by the spring 15 to hold tungsten contacts 16, 17, together is reduced before the contacts are opened by the engagement of the movable armature 3 with the spring. As shown in Fig. 1, the spring 15 is joined to the armature 3 so that when the operating member 14 is moved the armature pivots in a clockwise direction, and the pressure exerted by the spring 15 on the contact 16 is reduced until contact is broken by the armature striking the stop member 25 as shown in Fig. 2. In a second embodiment, Fig. 3 (not shown), the spring (15a) is mounted on a frame (18a) supporting a stop 19, instead of on the armature, and in a third embodiment, Fig. 4, (not shown), the armature is placed at an angle to the magnetic polepiece of the coils.
Patent GB-947703-A (GB)
Title: Improvements in or relating to knives
Inventor: HAYES FRED HERBERT
IPC: B26B11/00
Filed: 1959-12-17
Abstract: 947,703. Knives; spanners. JOSEPH RODGERS & SONS Ltd. Dec. 19, 1960 [Dec. 17, 1959], No. 42981/59. Headings B4B and B4W. A slot of gradually tapering form, for engagement with different sizes of head or nut of a screw-threaded pin or bolt, is provided in the handle or other part of a pocket, clasp or sheath knife. As shown, a knife, having scales 10, 11, 12 spaced by distance pieces 13, 14 and secured together by pins 15, passing through the distance pieces, and by a pin 16, securing a back spring 18, has a blade 17 hinged on one of the pins 15 between the scales 11, 12 and the scales 10, 11 have coinciding slots 19 which, taken from one end to the other and which, with the space between the scales, provide adequate depth for reception of the head or nut. In a clasp knife having a blade or other tool of adequate thickness, the slot is provided therein and in a sheath knife having a fixed blade a slot is provided in the handle or blade or in both.
Patent GB-433766-A (GB)
Abstract: 433,766. yielding shaft couplings. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Towne, C. C. ; 9, Blackburn Place, Summit, New Jersey, U.S.A.) April 16, 1935, No. 11693. Convention date, April 20, 1934. [Class 80 (ii)] [See also Group XL] A picture cylinder 10 or other rotatable body is connected to the drive 14 through a spring or similar coupling 37 which stores energy while the cylinder is speeding up and then gives up the stored energy to bring the cylinder to correct phase in which it is maintained by stops 24, 33 or the like. The apparatus is started by a key 65 which operates a relay 44, the armature 46 of which is removed from the path of arms 58, 54. The release of the arm 58 permits a spring-pressed claw 17 to engage a claw gear 16 on the shaft of a driving motor 11, driven from a constantfrequency source 12 through correcting arrangements 13, 60. The rotary movement is communicated through a shaft 57 to the yoke 33 and thence through the spring 37 to a shaft 18 driving the cylinder. At first the cylinder lags behind the motor, but when it has reached the same speed it is further accelerated by the tension of the spring. On reaching the phase at which the cylinder was started, a stop 24 on a member 22 secured to the shaft 18 engages the yoke 33 to prevent further acceleration of the cylinder. The stop is held in this position by initial tension in the spring. To prevent the stop striking the yoke too sharply, an escapement 27 oscillates when the cylinder is running faster than the motor, thus retarding the rotation of the cylinder. When the motor is running faster than the cylinder, a pawl 42 slides over a ratchet gear 31, and the escapement is inoperative. Specification 336,684, [Class 80 (ii)], is referred to.
Patent GB-905641-A (GB)
Title: Improvements in electric circuit breakers
Inventor: COLEMAN EDWARD
IPC: H01H73/38
Filed: 1959-06-16
Abstract: 905,641. Automatic circuit-breakers. CRABTREE & CO. Ltd., J. A. May 25, 1960 [June 16, 1959], No. 43427/61. Divided out of 905,639. Drawings to Specification. Class 38 (5). A moulded case circuit-breaker has electromagnetically-operated tripping means including an armature floatably located on a rivet projecting from a magnet frame. The circuitbreaker is that described in Specification 905,639. Specifications 905,640 and 905,642 also are referred to.
Patent GB-969242-A (GB)
Title: Improvements in and relating to optical measuring and gauging equipment
Inventor: COOKE CONRAD REGINALD
IPC: G01D5/38
Filed: 1961-12-05
Abstract: 969,242. Diffraction gratings. WATSON, MANASTY & CO. Ltd. Nov. 21, 1962 [Dec. 5, 1961], No. 43546/61. Heading G2J. [Also in Division G1] A measuring device, wherein the position of a feeler 10 is indicated by fringes produced by passing light through two gratings 9, 21, one fixed and the other movable with the feeler, has gratings ruled so that the resulting fringes comprise light bands of width, at least at one point, different from the width at the same point, of the adjacent dark band. The lines on the grating may be wedge shaped (Fig. 5) or be parallel but of different width from the intervening spaces. The fringes so produced, Figs. 2 and 4, are read against a scale. The gratings may be crossed or, if of different pitch, uncrossed or alternatively reflecting gratings can be used
Patent GB-1414359-A (GB)
Title: Battery charger control
IPC: H02J7/10
Filed: 1973-09-18
Abstract: 1414359 Battery chargers LESTER ELECTRICAL OF NEBRASKA Inc 18 Sept 1973 [17 Oct 1972] 43724/73 Heading H2H A method of controlling the charging of a battery comprises generating a number of digital signals each corresponding to a different energy level of the battery and terminating or reducing to a trickle the charging of the battery when the time interval between certain of the digital signals exceeds a predetermined maximum time interval. A circuit 16 generates the digital signals and includes a multi-vibrator (62), Fig. 4 (not shown), controlled by a comparator amplifier (55) which receives as one input the analogue battery voltage and as the other input, the output of a digital to analogue converter (58). The converter is fed by a counter (60) which receives pulses from the multivibrator and the output 26 of the amplifier provides a signal for each 0À012 volt increment of the battery 14. A detector circuit 18 includes a counter (73), Fig. 5 (not shown) which counts pulses produced by a timer control circuit (86), Fig. 6 (not shown) in a logic circuit 20 when the number of pulses counted by the counter (73) between successive signals on the output 26 exceds a predetermined number, thereby indicating that the battery is fully charged, the detector circuit 18 supplies a signal to a switching circuit 22. The circuit 22 comprises a transistor controlled relay switching circuit which de-energizes a battery charger 12. The charger 12 may be of the type which rectifies alternating current and may have a transformer which includes a saturable reactor. The circuit 20 also includes an over-voltage protection circuit (84) which provides an output 35 to deenergize the battery charger if the battery voltage exceeds a predetermined maximum. The battery charger is automatically de-energized after a period of 5 minutes if the battery 14 was initially in a nearly charged state and after a period of 40 minutes if the battery was initially in a discharged state. The circuit 20 also includes a maintenance circuit which, during long periods of storage of the battery, energizes the battery charger whenever the battery potential falls below a predetermined level.
Patent GB-1454667-A (GB)
Title: Degradable polymers and production of the same
IPC: C08K5/01
Filed: 1974-10-10
Abstract: 1454667 Degradable polymers SNAMPROGETTI SpA 10 Oct 1974 [24 Oct 1973] 44040/74 Heading C3P Degradable polymer compositions comprise (i) a thermoplastic polymer and (ii) where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are aromatic radicals provided that one or two thereof may be hydrogen, alkyl, cycloalkyl or aralkyl. An example describes degradable films comprising polyethylene and tetraphenylethylene.
Patent GB-895256-A (GB)
Title: Improvements in and relating to submersible pumps
Inventor: HALLERBACK STIG LENNART
IPC: F04D13/08
Filed: 1959-12-30
Abstract: 895,256. Centrifugal pumps. DAN BERGMAN A.G., W. Dec. 30, 1959, No. 44329/59. Class 110 (1). [Also in Group XXXV] A submersible pump comprises a passage for the upward flow of fluid formed between an outer casing and an inner casing enclosing the driving motor, the depending shaft of which motor carries a pump impeller, and a lower portion of the outer casing forms an impeller housing and is provided with inlet and outlet guide vanes for the impeller, the lower portion and the impeller being exchangeable to adapt the pump for different operation conditions. The lower member 7 of the outer easing 1 affords a housing for the impeller 4 which is attached to a shaft 3 of an electric motor disposed within an inner casing 2. The impeller 4 draws fluid through a strainer 10 fixed to the impeller housing 7 by means of a bottom plate 11. The fluid passes between inlet and outlet guide vanes 8, 9 and along an annular passage between the casings 1, 2 and is discharged at the upper end of the pump. Axial guide ribs 13 integral with the inner casing 2 and disposed along the annular passage improve the fluid flow. They are hollow with the inner surfaces in contact with the air cooling the stator windings disposed within the inner casing 2. To adapt the pump to altered operating conditions the impeller housing 7 and impeller 4 may be exchanged for a different impeller and impeller housing having characteristics more suited to the altered operating conditions without disturbing the pump above the intermediate member 6. One such arrangement comprises a two-stage impeller and a two-part impeller housing.
Patent GB-1138044-A (GB)
Title: Method of preparing halo-substituted polyhydroalkanonaphthalenedicarboxylic anhydrides
IPC: C08K5/12
Filed: 1967-09-29
Abstract: 1,138,044. Halo-substituted polyhydroalkanonaphthalenedicarboxylic anhydrides. GOODYEAR TIRE & RUBBER CO. 29 Sept., 1967 [16 Nov., 1966], No. 44371/67. Heading C2C. Halo - substituted polyhydroalkanonaphthalenedicarboxylic anhydrides are prepared by reacting a mixture comprising at least one unsaturated dicarboxylic anhydride, at least one conjugated aliphatic diene, and at least one conjugated halocycloalkaliene in which the halogen is chlorine or bromine. Suitable conjugated aliphatic dienes are particularly trans- 1,3 - pentadiene and 2 - methyl - 1,3 - pentadiene. Suitable dicarboxylic anhydrides are, e.g., maleic anhydride, itaconic anhydride, citraconic anhydride, pyrocinchonic anhydride, vinylsuccinic anhydride, allylsuccinic anhydride and teraconic anhydride. Suitable conjugated halocycloalkalienes are mono- and polyhalocycloalkadienes having 5-8 carbon atoms. In an example, maleic anhydride, a mixture of trans - 1,3 - pentadiene and cis - 1,3 - pentadiene, and hexachlorocyclopentadiene are reacted to give 2,3,4,5,11,11-hexachloro-7- methyl - 8,9 - dicarboxyl - 4,4,0,1<SP>2</SP>'<SP>5</SP> - tri - cycloundecene-3-anhydride.
Patent GB-1246648-A (GB)
Title: Woven stringer tapes for sliding clasp fasteners
IPC: A44B19/54
Filed: 1968-09-18
Abstract: 1,246,648. Zip fastener tapes. YOSHIDA KOGYO K.K. 18 Sept., 1968 [28 Sept., 1967; 21 Dec., 1967; 23 July, 1968], No. 44437/68. Heading D1K. [Also in Division E2] A zip fastener tape has woven into the selvedge a helical fastening member 110 which is flattened so that both legs 111 of a loop are in the same shed of warp threads Wa which always pass around the exterior of both legs 111 and never between the legs. In Figures 1, 2 and 3 the tape is at a plain weave with continuous loops of weft thread We which form a knitted selvedge at one edge of the tape and both legs of which are in the sheds Wp occupied by the helical fastener 111 and the warp threads cross between picks and between adjacent loops of the fastener. Twill and rib weaves may be utilised. In Figure 6 one set of warp threads in the fastener zone are shed to be always on one face of the fabric and the other set on the second face. In Figure 10 the fabric is woven with the fastening member having its engaging "teeth" in ward of the selvedge and the tape is then folded to bring the teeth on the outer edge to provide a concealed fastener. The fastener may also be sewn to the tape and not all of the weft loops may extend into the fastener zone.
Patent GB-949955-A (GB)
Title: New lactams and their use in the production of ª -amino-ª -caprolactam
IPC: C07D223/12
Filed: 1960-12-29
Abstract: The invention comprises (a) 2-substituted 6-aminohex -2- enoic acid lactams of the general formula: <FORM:0949955/C2/1> wherein R represents an alkyl, cycloalkyl, aralkyl or alkenyl group (b) a hydrazino compound having one of the following alternative structures: <FORM:0949955/C2/2> <FORM:0949955/C2/3> <FORM:0949955/C2/4> and (c) the conversion of the hydrazino compound, by catalytic hydrogenation, into a -amino -e - caprolactam and salts thereof. The invention also comprises the preparation of the 2-substituted, unsaturated lactams by reacting at raised temperature a , a -dichloro-e -caprolactam with 2 to 5 times the molar amount of an alkali metal alcoholate derived from an alcohol ROH wherein R has the meaning stated above.  The invention further comprises the preparation of the hydrazino compound by reacting at elevated temperature the 2-substituted lactams with substantially half the molar amount of a mineral acid salt of hydrazine at a pH between 0.8 and 3.0, preferably in aqueous or aqueous-alcoholic solution or by melting the reactants together. Hydrogenation of the hydrazino compound can be performed with nickel or palladium catalysts and if acid is present the a -amino -e - caprolactam is obtained in the form of an acid addition salt.  Such salts are also obtained by subsequent addition of acid to the basic hydrogenation product.  In examples, 2-methoxy-and 2-ethoxy -6- aminohex -2- enoic acid lactams are prepared from a , a -dichloro-e -caprolactam and the appropriate sodium alcoholate, converted to the hydrazino compound by reaction with N2H4.2HCl, and the latter reaction product is hydrogenated to form a -amino -e -caprolactam and the hydrochloride, sulphate, acetate and reineckate salts thereof.