baber/WOPTO huggingface dataset:
Patent GB-667806-A (GB)
Title: Improvements relating to copying milling machines
IPC: B23Q35/10
Filed: 1949-11-30
Abstract: 667,806. Copy-milling. BRYNILDSRUD, F. Nov. 30, 1949 [Dec. 2, 1948], No. 30733/49. Class 83 (iii). A three-dimensional copy-milling machine comprises a work-table 33 carrying the pattern 19 and work-piece 15, or work-pieces, a tracer 18 and cutting-tool 13, or tools, and supporting means 1 freely movable to and from the table in response to the tracer movements and carrying at least one sliding member 2 on which the tracer and tools are mounted, the sliding member being movable at an angle with respect to the direction of movement of the supporting means. A support member 1 is suspended on links 21, 22 from a member 20 vertically and horizontally adjustable on the machine frame and carries two horizontal slides 2, 3 on one of which is mounted the tracer 18 and tool 13 and on the other, a tool 14. The support member is partially sustained by a spring 24 which is adjustable by a rotatable arm 25 and screw 27 to vary the working pressure of the tracer and tools. After rough adjustment of the member 20 and fine horizontal and vertical adjustment of the tracer on the slide 2, the member 1 is lowered so that the tracer and tools are at a level somewhat below the highest points of the pattern and work, as determined by an adjustable stop 23, and by reciprocating the slides 2 and 3 by a hand lever 6 having rollers engaging grooves 11, 12, during simultaneous transverse feed of the table 33, the surface of the pattern above the set level is scanned and copied in the work-pieces 15 and 16. The stop 23 is then adjusted several times so that the process may be repeated beginning from different lower levels until the lowest level of the pattern is reached. On abrupt portions of the pattern, the upward movement of the member 1 may be assisted by a handle 32 formed by an extension of the link 22. Since the slides 2, 3 are reciprocated in opposite directions, the work-piece 16 formed by the slide 3 is a mirror image of the other work-piece 15 and by making the arms of the lever 6 of unequal length, the work-piece 16 can be distorted in one dimension to form, for example, an ellipse from a circular pattern.
Patent GB-1399456-A (GB)
Title: Cavity closure for cavity walls
IPC: E06B1/00
Filed: 1971-06-30
Abstract: 1399456 Cavity wall closer J E S GLOVER and T N GLOVER 23 June 1972 [30 June 1971 21 July 1971] 30752/71 and 34280/71 Heading E1B A cavity wall closer 1 extruded in dampproof material is shaped on the side facing the cavity to prevent moisture passing from the outer leaf 4 to the inner leaf 3 and incorporates a layer 2 of insulating material. Wall ties 9 which may also be extended as shown in dashed lines have hooks 9a to engage internal lips 8a. The wall ties have a projection 9b forming a water bar. Channels 12 and 13 assist in keying plaster. In a major modification the closer inculdes a hollow air space which replaces the insulating material. Many minor modifications of the detail shape of the extruded section forming the closer are described. A flange similar to flange 6 may be provided to bear in the inner leaf 3. A sleeve is provided for connecting two extrusions end to end.
Patent GB-1157325-A (GB)
Title: alpha-Halogen-substituted alpha,beta Ethylenic Aldehydes and Processes for the Preparation thereof
IPC: C07D295/073
Filed: 1966-07-08
Abstract: 1,157,325. α-Halogen substituted α,#-ethylene aldehydes. SOC. NATIONALE DES PETROLES D'AQUITAINE, and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 8 July, 1966 [9 July, 1965], No. 30830/66. Heading C2C. Compounds of the formula wherein R is an alkyl, aryl, aralkyl or cycloalkyl hydrocarbon radical and X is halogen and preparation thereof by reacting an enamine of the formula where R has the above significance and R 1  and R 2  are identical or different alkyl radicals and may be combined to form a single cyclic hydrocarbon radical with a dihalocarbene and hydrolysing the resulting substituted dihalocyclopropylamine, e.g. with sulphuric acid at ambient temperature. The first step in the reaction is preferably effected with stirring at a temperature between 5‹ and 50‹ C. for from 60 to 180 minutes. The enamine of the second general formula above is preferably prepared from a saturated aldehyde of the formula R.CH 2 .CHO, e.g. butyraldehyde, heptaldehyde, hexaldehyde or phenylacetaldehyde, and the appropriate secondary amine, e.g. dimethylamine, diethylamine, piperidine, morpholine or pyrrolidine. The preferred dihalo. carbene is dichlorocarbene and is prepared by reacting chloroform with t-amyl-sodium. The preparation of α-chlorocinnamaldehyde and of 2-chloro-substituted 2-octenal, 2-heptenal and 2-pentenal and the 2,4-dinitrophenylhydrozones thereof is described.
Patent GB-1278442-A (GB)
Title: Semiconductor devices
IPC: H01L27/06
Filed: 1969-06-18
Abstract: 1278442 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 June 1969 [21 June 1968] 30848/69 Heading H1K Emitter contact is made to a semi-conductor body by means of several fingers extruding through holes in passivation, the fingers each being connected to a common electrode portion also lying on the passivation by a respective resistor, the various resistors being defined by paths in a common layer. This layer may be a layer of metal (Ti, Ta, Al or Ni-Cr) lying on the passivation or it may be a diffused layer formed in the surface of the semi-conductor body. The passivation may be silicon oxide or silicon nitride and the semi-conductor may be silicon, germanium or an A<SP>III</SP>B<SP>#</SP> compound. Electrode metallization may be of Al, Au or Ni. Fig. 6 shows a section through a multiple emitter transistor wherein emitter regions 54 are formed in a base region 53b provided with a grid 53a of enhanced conductivity. The emitter regions 54 are connected through resistive layers 60 to the spines 57 of an emitter electrode which is interdigitated with the base electrode 56. Fig. 3 shows two double-emitter transistors which form part of an integrated circuit of the junction isolated type. The emitter contact fingers 5 connect the emitter regions 9 to a diffused resistor layer 21 the other side of which is connected to a common contact 22 for the emitter regions of both transistors. The desired equal current distribution between the two transistors is obtained despite the voltage drop along the common contact 22 by varying the spacings of the ends of fingers 5 from the common contact so that the resistance from the common lead (not shown) to each emitter region is the same. In variants the magnitude of the resistor may be varied by varying the width of the finger where it contacts the resistive layer. Alternatively the resistive layer may be tapered (in plan view) with all contacts equally spaced from its edges. The structures are designed such that the resistance between adjacent fingers is higher than that between each finger and the common contact. Though the fingers are connected to individual regions, many fingers may instead be used to contact a single region at spaced points.
Patent GB-1199288-A (GB)
Title: Apparatus for the Recording or Reproduction of Sounds on or from a Tape stored in a Cassette
IPC: G11B15/18
Filed: 1967-07-05
Abstract: 1,199,288. Cassette-type recorder. STAAR S.A. 5 July, 1967 [8 July, 1966], No. 30889/67. Heading G5R. In a tape recorder of the type described in Specification 1,080,082 in which a movable plate 2 is moved to the right against the action of spring 108 on insertion of a cassette into the recorder and is held with the cassette in its operative position by latch 3, circuit means are provided for releasing the plate and ejecting the cassette from its operative position when the tape drive ceases. As shown the recorder drive, amplifier &c. circuits are connected to the positive terminal of the supply via a car ignition switch 46 and a radio/recorder switch 50 and to the negative terminal via switch 31 which is closed when a cassette is inserted. A latch release solenoid is connected via tape motion stop detector 10 to the positive terminal and via switch 31 to the negative terminal. When one of switches 46, 50 is open the stop detector activates its switch, the latch 3 is released and the plate and the cassette are moved from their operating position by spring 108. On moving from this position switch 31 is opened de-energizing the stop detector and the solenoid.
Patent GB-895685-A (GB)
Title: Improvements in or relating to synthetic plastic structures
Inventor: LICKLEY ROBERT LANG
IPC: B60N3/08
Filed: 1957-10-02
Abstract: 895,685. Vehicle bodies. AEROPLASTICS Ltd. Oct. 2, 1958 [Oct. 2, 1957], No. 30894/57. Class 108(1). [Also in Group XVII] An impregnated glass fibre roof of a car body h a s abrasion resisting members 50 of nylon, polyvinyl chloride or aluminium secured thereto by non-metallic means. In one form, a member 50 is cemented in a recess moulded in the body. In another form (Fig. 4), a split tube 5 of aluminium is packed with glass fibre impregnated with liquid synthetic resin and subsequent curing unites the tube and fibre in the recess. In a further embodiment, an extruded I-section of aluminium is partly embedded in the body and is secured by a thermosetting resin. The members 50 may be nylon ropes secured at their ends by fixing plates.
Patent GB-983638-A (GB)
Title: Method and apparatus for spinning artificial filaments
IPC: B29C48/05
Filed: 1961-08-28
Abstract: 983,638. Making artificial filaments. FMC CORPORATION. Aug. 28, 1961 [May 11, 1961] No. 30954/61. Heading B5B. Artificial filaments are made by dividing a stream of polymeric material in liquid form into a number of individual streams, directing the individual streams along independent but intersecting paths, whereby portions of the different individual streams are blended together as their paths intersect each other, and combining the individual blended streams of polymeric material into a single stream which is then shaped into the filaments. As shown in Fig. 1, a thermoplastic filamentforming material, such as polypropylene, is fed in the form of chips or pellets into the barrel 25 of an extrusion apparatus 15 of known construction and is advanced through the barrel by a rotatable screw conveyer 27. The polymer is heated to the desired melt temperature, e.g. 225 to 250 C., by heaters 29 encasing the barrel. The melt is forced through a passage 31 in the extrusion block 19 and is delivered by the metering pump 17 into the passage 37 from which it flows through a passage 39 and the helical grooves on the surface of the blending unit 21 and thereafter through the holes in a breaker plate 47 and finally through the extrusion orifices of the spinneret 43. Flow differences within the stream of polymer melt are eliminated by the cylindrical blending unit 21 which fits snugly within the aligned cylindrical passages 39 and 57 and is supported above the breaker plate 47 by the pin 59. The unit 21 is provided on its surface with a number of helical grooves 61 and 63 (Fig. 2) which intersect similar helical grooves 65 and 67 of equal but opposite pitch. The polymeric material may be in the form of a spinning solution, in which case the single stream is shaped into filaments by wet or dry spinning. One or more streams of a polymer melt containing a dispersed pigment may be injected into the main polymer melt stream through a conduit 69, when it is desired to make coloured filaments. Differences between the flow rates of the filament forming material through different orifices of the spinneret are reduced and consequent differences between the diameters of the filaments of multi-filament yarns are reduced by the procedure of the invention.
Patent GB-1020859-A (GB)
Title: Improvements in and relating to packages and containers
Inventor: RATNER BENJAMIN MAX
IPC: B65D27/00
Filed: 1963-08-06
Abstract: 1,020,859. Bags. SPICERS Ltd. Aug. 6, 1964 [Aug. 6, 1963], No. 30979/63. Heading B8K. [Also in Division B6]  A re-sealable envelope, bag or container comprises a tubular body 2, having closure flaps 3, 4 at the respective ends of the tubular body, wherein the flap 4 is provided with a coating of remoisterable adhesive 7 and adapted on insertion of contents through an opening 8 to form a permanent closure. The other flap 3 is provided with a coating of pressure-sensitive adhesive 5 such as a film of a polymer-tackifier combination or a rubber-latex based adhesive to form a re-sealable closure with an impervious surface 6 formed or provided on said tubular body. In another embodiment the impervious surface 6 may be provided or formed on the flap 3 and the adhesive applied to the body 2. The surface 6 may comprise a film forming emulsion or solution, e.g. polyvinylidine chloride or may simply be the normal surface if the body is of suitable material.
Patent GB-992584-A (GB)
Title: Electrolytic recovery of metals from aqueous sulphate solutions
IPC: C25C1/08
Filed: 1961-08-28
Abstract: In a process for recovering metals which have an electrochemical potential from that of H to and including that of Mn and which form water soluble sulphates, an aqueous solution of the metal sulphate is electrolysed using as anode a box plate of the type used in the manufacture of acid storage batteries containing Pb powder, this electrode being able to take part reversibly in the sulphate-forming anodic process so that PbSO4 formed at the anode can be electrolytically converted to H2SO4.  Examples are the recovery of (1) Ni, (2) Fe, (3) Fe/Cd/Ni and (4) Mn.  The pH of the electrolyte for electrolysis of sulphates of the elements in the stated range is critical and the Pb anode acts to keep the pH constant.  If the solution becomes too acid PbSO4 is formed and if too alkaline Pb(OH)2 is formed.  The solubility product of Pb(OH)2 is considerably lower than that of PbSO4 therefore the pH value can be controlled by the current density. After deposition of the metals the Pb electrode containing PbSO4 is connected as cathode and Pb is regenerated and H2SO4 recovered.  The Pb powder of the anode may be mixed with BaSo4 powder to reduce agglomeration of the granules and may be enclosed in a textile shielding lining of glass and nylon fibres.  In producing Ni, and optionally in producing the other metals in the stated range, the metal sulphate electrolyte also contains a sulphate of one or more other metals forming water soluble hydroxides and having an electrode potential greater than and of the same charge as that of the metal to be deposited, e.g. Na2SO4.  Electrolytic recovery of the H2SO4 may be by arranging the Pb electrode, which may comprise Pb powder between perforated Pb foils, so as to act as a diaphragm, the electrode dividing a cell into two separate parts, metal sulphate being in one part and Pb powder and H2SO4 being regenerated in the other.  The metal sulphate solution and H2SO4 may be separated by a microporous polyvinyl chloride diaphragm.
Patent GB-365595-A (GB)
Title: An improved protective casing for installation apparatus, for example electricity meters
IPC: G01R11/04
Filed: 1930-10-16
Abstract: 365,595. Switch bases. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Oct. 16, 1930, No. 31002. Convention date, Oct. 19, 1929. [Class 38 (v).] A cover for affording protection to persons against touching time switches, comprises a baseplate of insulation mounted on a switchboard &c., and a cap secured to the baseplate and enclosing the switch from which it is insulated, means being provided for preventing easy removal, or indicating unauthorized removal of the cap from the baseplate. As shown, applied to a meter, the meter a is suspended on a baseplate b by bolts bl which engage slotted lugs on the meter casing, the recess in the baseplate being filled with insulation g. Holes h are provided for fixing the baseplate and these holes may be located within the cap d'which is preferably of sheet metal and is provided with an inspection window e. The cap d has side lugs engaged by clamping screws which may be wired to posts on the baseplate, the wire being leadsealed.
Patent GB-918290-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop lying on theground
IPC: A01D78/00
Filed: 1960-09-08
Abstract: 918,290. Haymaking machines. VAN DER LELY N.V., C. Sept. 8, 1960 [Sept. 18, 1959], No. 31003/60. Class 6(3). A side-delivery rake comprises a main frame 1 movable over the ground .and a beam 9 carrying a row of rake-wheels 14-17, the beam being linked to the frame in at least two places by means which include lever-arms 18, 19 at least one of the arms being coupled indirectly to the frame or to the beam by an intermediate member 22 allowing translational relative movement in addition to pivotal movement when the beam is moved vertically by rotation of the lever-arms. As shown, the frame 1 is mounted on swivel-wheels 2, 3, 7 of which the foremost 7 is coupled to a drawbar 8 and the rearmost has a lockable swivel-axis. The lever-arms 18, 19, form part of bellcranks, pivoted on the main frame-beam 4, of which the other arms 25, 26 are connected by springs 31, 32 and cables 29, 30 to a screwadjustment device 39 by means of which the beam 9 can be lifted or lowered bodily. The member 22 is a pivoted link but it could comprise a slotted lug, Fig. 5 (not shown). Both lever arms may have such links, Fig. 3 (not shown).
Patent GB-1466515-A (GB)
Title: Continuous latex stripping method
IPC: C08F6/00
Filed: 1975-07-24
Abstract: 1466515 Evaporating volatiles from a poly mer latex PARKSON CORP 24 July 1975 [16 Aug 1974] 31058/75 Heading B1B [Also in Division C3]  Volatiles are stripped from a shear- and heat-sensitive latex polymer mixture by contacting with steam at 115-180‹F and 1.5-7.5 psia. in a contactor (shown as 13 in the Fig.) which has a length to diameter ratio of at least 20:1, and has at least one bend 18, 19 of at least 45‹, and separating the latex from steam and volatiles at at least 0.5 p.s.i. lower than the pressure specified above, in a separator 22. A second stripping stage may be added. Introduction of the latex is effected via the annular groove 17 of injecting fid 12.
Patent GB-484813-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/224
Filed: 1936-11-14
Abstract: 484,813. Condensers. BRITISH IN. SULATED CABLES, Ltd., and HIGHAM, H. Nov. 14, 1936, No. 31155. [Class 37] A condenser unit 1 is enclosed in a stiff-walled tube 4 with end pieces, one or both of these end pieces being constituted by a disc 5 of rubber or rubber compound pierced with a hole for the passage of a lead-in wire 3 in a moistureproof manner. The ends of the tube 4 may be bent over as at 6 to hold the disc 5 in place and a reinforcing disc as of fibre with a larger central hole may fit outside the rubber one.
Patent GB-231831-A (GB)
Title: Improvements in or relating to electric discharge tubes for positive light
IPC: H01J61/18
Filed: 1924-12-30
Abstract: 231,831. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. April 1, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Low-pressure metallic-vapour apparatus giving illumination from the positive column has a gaseous filling consisting of one or more of the gases argon, krypton, and xenon and one or both of the metal vapours mercury and cadmium. A preferable filling consists of argon at a pressure between 4 and 8 mm. and mercury vapour.
Patent GB-1509955-A (GB)
Title: Open-end spinning machine with a travelling maintenance unit
IPC: D01H13/16
Filed: 1975-07-25
Abstract: 1509955 Travelling maintenance units which respond to a signal in open-end machines F STAHLECKER and H STAHLECKER 25 July 1975 [8 Aug 1974] 31290/75 Headings DID D1F and DIN In an open end spinning machine each spinning unit has a thread sensing stopmotion 17 which stops the supply of sliver e.g. by stopping drive to the feed roller 6 or clamping the sliver, a component of the sliver supply device when in an inoperative state being sensed by a detector on a travelling maintenance unit. The function which is sensed may comprise the rotation or non- rotation of the feed rollers or of a member associated therewith. Such an associated member may have magnets disposed about its periphery to give a pulse signal. Alternatively a part located on a sliver clamp or feed roll mount moves into the field of the sensor on the maintenance unit. Also the magnetic field of a clutch in the feed roller drive or a separate magnet in the same circuit may be sensed by the detector. The signal can also be mechanical or optical or e.g. an infra red light emitting diode. The maintenance unit 2 travels on a rail 19 which may be indexed with notches adjacent each spinning station to indicate the position at which a signal should be sought.
Patent GB-521796-A (GB)
Title: Improvements in and relating to luminescent materials for electric discharge lamps
IPC: C09K11/59
Filed: 1938-10-29
Abstract: 521,796. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 29, 1938, No. 31331. Convention date, Oct. 30, 1937. [Class 39 (i)] A luminescent coating for an electric discharge lamp containing mercury vapour comprises a mixture of 60 parts zinc oxide, 40 parts silica, 1.5 to 2.5 parts beryllium oxide, 3 to 5 parts manganese dioxide and ¢ part of lithium chloride by weight which has been fired at 1000‹C. for three hours or at 1100‹C. for half an hour and preferably quenched in water. The fluorescent colour varies from yellow to pink and green with variation of proportions. The preferred proportion of beryllium oxide is 2 parts and of manganese dioxide 4 parts. The zinc oxide,' silica, beryllium oxide and manganese dioxide may be added in the form of zinc nitrate, silicic acid, beryllium hydroxide and manganese nitrate respectively. The material may be mixed with cadmium borate either alone or with magnesium tungstate in order to yield a white luminescent light. a tubular lamp is described having a filling of argon at a pressure of 4 mm. of mercury, and a small quantity of mercury. Its electrodes 11 are thermionic cathodes of the activated type heated to emission by the discharge, and the lamp is preferably operated at a pressure corresponding to a temperature of 40‹C. The luminescent coating 12 is on the inside of the envelope 10. Reference has been directed by the Comptroller to Specifications 478,302 and 492,296, [both in Group XX].
Patent GB-341938-A (GB)
Title: Improvements relating to electric heating elements
IPC: H01B7/16
Filed: 1929-10-15
Abstract: 341,938. Wire resistances. SYKES, C., 12, Derbyshire Lane, NEEDHAM, W., 80, Victoria Road, both in Stretford, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London. Oct. 15, 1929, No. 31338. [Class 37.] A heating element is formed by placing a spirallywound resistance wire within a metal tube, placing a layer of magnesium inside the coil, or between the coil and the tube, or both, treating the magnesium with steam under pressure to convert it into magnesium hydroxide, and subsequently flattening the tube by pressing, rolling &c. so as to reduce its cross-section without increasing its length. Before pressing, the tube is plugged at the ends with steatite &c., through which the resistance wire passes. The tube, particularly if of nickel, may be heated during the pressing operation. The tube may be bent to any shape either during or after the pressing operation. Specifications 18685/14, 144,767, [both in Class 37, Electricity, Measuring &c.], 173,742, [Class 36, Electricity, Conducting &c.], and 273,939, [Class 37, Electricity, Measuring &c.], are referred to.