baber/WOPTO huggingface dataset:
Patent GB-902270-A (GB)
Title: Control mechanism
Inventor: HOWELL HUGH ALFONSE
IPC: H01H36/00
Filed: 1960-06-07
Abstract: 902,270. Magnetic switches. OAK MFG. CO. June 7, 1960, No. 19944/60. Class 38 (5). [Also in Group XXXV] A control mechanism comprises a permanent magnetic assembly which, when rotated, causes one, or a second, ferromagnetic path to be completed causing a rockable armature to operate a switch. Mounted axially on a bolt 35 are two axially-magnetized permanent magnet discs 10, 11 sandwiching a magnetic disc 15, with toothed magnetic discs 18, 20 sandwiching them, the teeth of 18 being aligned with the intertooth gaps of 20. Housing 41, containing this assembly, has a partition 28 of non-magnetic material with ferromagnetic inserts 29-31 co-operating with discs 18, 15, 20 respectively, mounted above which, in auxiliary housing 62, is armature 45, of generally cruciform shape (Fig. 9, not shown), with underchamfered arms 46, 47 parallel to the rotatable assembly axis, rockable about a pivot, e.g. transverse arms, such as 48. Rotation of knob 42 causes a tooth of either disc 18 or disc 20 to approach, with a very small air gap, either insert 29 or 31 completing, with disc 15 which is always close to insert 30, a ferromagnetic path attracting either end 46 or 47 of armature 45, respectively, to make electrical contact with terminal element 65. Armatures, and accompanying inserts, contacts, terminals, housings, &c. may be multiplicated about the other faces of casing 41, which may be polygonal or cylindrical in form, the latter being shown in Fig. 10, wherein non-magnetic housing 70 encloses magnet discs 84, 85 and magnetic discs 81-83 co-operating with inserts 76, 75, 77 respectively, with rockable armature 79 in an auxiliary housing, disc 82 having tooth 87 aligned with indentation 88 in disc 83. Teeth, indentations and armatures may be multiplicated, auxiliary housings may be interchangeable and main and/or auxiliary housings may be hermetically sealed.
Patent GB-625375-A (GB)
Title: Improvements in or relating to apparatus for preparing rubber coagulum
IPC: B29C65/00
Filed: 1947-07-24
Abstract: 625,375. Tanks. PLANTERS ENGINEERING CO., Ltd., and SCHOFIELD, J. July 24, 1947, No. 19977. [Class 69 (i)] A locating device for the division plates in a coagulating tank comprises a comb-like structure 10, 11, adapted to lie in the tank with the teeth 11 inclined downwardly and inwardly with the free ends resting on the bottom of the tank and the longitudinal connecting member or back 10 located above and outwardly of the upper edge of the side of the tank. Two devices are placed as shown, the division plates 14 being inserted to fit between the teeth 11. Separate top locating means comprise bars 15 extending along the tank and resting between positioning members 16 on the end walls of the latter, the said bars carrying spacers 17 which pass between the division plates and hold their upper edges in position when the comb-like structures 10, 11 are withdrawn, so that the plates are properly located. The back may be of metal, e.g. aluminium, and of angle or channel section, or moulded of plastic in tubular form, or of wood. The teeth 11 comprise strips of substantially rigid material such as a moulded plastic material, wood or metal, each strip having a width equal to the desired spacing of the division plates, and are screwed to the back or secured thereto by an adhesive.
Patent GB-404657-A (GB)
Title: Improvements in or relating to connecting devices
IPC: B60R13/10
Filed: 1933-07-14
Abstract: 404,657. Signs ; fastenings. SOC. ANON. DES USINES CHAUSSON, 35, Rue Malakoff, Asnieres, Seine, France. July 14, 1933, No. 19990. Convention date, July 21, 1932. [Class 44.] Means applicable generally for detachably securing together two or more plates, or a plate and a casing, or like uses, and described as securing a transparency vehicle-number-plate 1 to a lamp casing 2, comprises a grooved rubber &c. ring or band 6 adapted to be sprung into place round the adjacent peripheries of the members to be connected, the peripheries being received in the groove. As shown, casing 2 has a flanged periphery 4 with the outer portion 5 bent back parallel to the wall of the casing, and the groove is of corresponding L-form. To increase the grip the entrance to the groove is made restricted. The invention is applicable to plates &c. of circular or non-circular form, and the member 6 may be reinforced and ornamented by a rigid frame 8 of required form attached by claws 9, or by an undercut rib embedded in member 6.
Patent GB-592945-A (GB)
Title: Improvements in or relating to the surface treatment of steel
IPC: C23C8/26
Filed: 1944-10-16
Abstract: Spring steel or a component made of spring steel is treated to enable it to withstand high temperature without substantial loss of resilience by hardening and tempering in the usual manner and subsequently hardening the surface by gas or liquid nitriding. The nitriding may be carried out by heating to 475 DEG  to 550 DEG  C. in ammonia or in a bath containing a mixture of potassium and sodium cyanides for 10 to 24 hours.  As an example, a spring made of a chrome vanadium steel of the following composition: carbon, .4 to .5 per cent; silicon, not more than .3 per cent; manganese, .5 to .7 per cent; sulphur, not more than .04 per cent; phosphorus, not more than .04 per cent; chromium, 1.0 to 1.5 per cent; vanadium, .15 to .3 per cent; copper, not more than .15 per cent; nickel, trace, may be hardened by heating to 860 DEG  to 890 DEG  C. and quenching in oil, tempered at 400 DEG  to 430 DEG  C. and then nitrided as above.
Patent GB-1087657-A (GB)
Title: Manufacture of a textile fabric
IPC: D03D15/567
Filed: 1965-05-12
Abstract: A crepe fabric is produced by wearing a textile fabric from linear polyester yarns having less than 18 turns per inch of twist with both the warp and the weft containing heat stabilized yarns having non-heat stabilized yarns uniformly distributed among them, less than six successive yarns being non-heat stabilized, and subjecting the textile fabric to the action of heat at a temperature above 100 DEG C and below the softening point of the yarn to develop the crepe effect.  Preferably, polyethylene terephthalate yarns having a twist of 4-15 turns per inch are used and alternate pairs of heat-stabilized and non-heat stabilized yarns are contained in both the warp and weft of the fabric.  The fabric may contain 20 - 80%, preferably 35-65%, of non-heat stabilized yarn.  The polyester yarn may be prepared by melt spinning and the filaments obtained are stretched, e.g. by winding from one roller to another with the second roller rotating at a higher speed than the first roller to stretch the filaments from 2-8 times, preferably 3 - 5 times, their original length.  During the drawing operation, the temperature of the filaments can range from the second order transition temperature to about 80 DEG C above this temperature.  Heat stabilization is preferably carried out in the range 100 - 220 DEG C for a time sufficient to provide a relaxed yarn, i.e. a yarn which will not shrink more than 5%, preferably less than 2%, of its length when subsequently heated. The length of time is proportional to the temperature used.  The heat stabilization can be effected by steam, infra-red heat, dielectric heat, or passing the yarn through hot air, inert gas or hot fluids, e.g. boiling water or an inert organic liquid.  The twist can be placed in the yarn before or after heat stabilization.  The non-heat stabilized yarn shrinks by more than 5%, preferably more than 10%, of its length when heated.  The fabric is heated at a temperature in the range 100 - 150 DEG C by steam, infra-red heat, hot air, hot inert gas or hot fluids, e.g. boiling water or an inert organic liquid.  The length of time of the treatment is proportional to the temperature used.
Patent GB-153958-A (GB)
Title: Improvements in universal surface gauges
IPC: G01B5/02
Filed: 1919-08-15
Abstract: 153,958. Getgood, R. F. Aug. 15, 1919. Tools for setting-out work.-A scribing-block is made with the base in two parts insulated from one another and is electrically equipped to give an audible or visible signal when contact of the scriber with the work is established. The two parts a, a<1>, Figs. 1, 2 of the base are insulated by a layer b of non-conducting material, and the battery is housed in the part a<1>. One terminal of the battery bears against a spring connected to the part a<1>, the other terminal bearing against a pivot d of the switch d<1>. The terminal c, insulated from the top part a, is connected to the central contact of a lamp e<1>, the other lamp contact being connected through the lamp protector e<2> to the top a. The circuit is from the battery through the pivot d, switch d<1>, lamp e<1>, top a, pillar g, scriber g<1> and work, surface plate, and base a<1>, to the battery. Instead of housing the battery in the base, it may be contained in a separate box, to the bottom of which a metal plate is fixed to which are brought one outside contact and one lamp contact, the battery being connected to the other outside and lamp contacts. Fig. 15 shows a false base into which the base of an ordinary block may be slipped and held by spring-pressed balls m.
Patent GB-880275-A (GB)
Title: Improvements relating to gas-filled electric bushing insulators
Inventor: AMER DONALD FOSTER
IPC: H01B17/36
Filed: 1959-06-11
Abstract: 880,275. Transformers. REYROLLE & CO. Ltd., A. June 9, 1960 [June 11, 1959], No. 20111/59. Class 38 (2). [Also in Group XXXVI] A tabular conductor 14 passing through a hollow, gas-filled bushing insulator is surrounded by an elastic sleeve membrane 20, for example, of Neoprene, with gas normally at the same pressure inside and outside it, so that if the outside gas pressure falls the membrane is expanded to the position 26 and the bushing remains filled with gas at a lower pressure. The bushing comprises a central earthed metal section surrounded by current transformer winding 25 and two insulating end sections 10. The bushing is filled through tube 23 with gas which passes through non-return valve 24 into the interior of the conductor and through holes 22 in the conductor where membrane 20 expands. The conductor ends are sealed by terminal plugs 15.
Patent GB-317957-A (GB)
Title: Improvements in or relating to hoists and other lifting apparatus
IPC: B66D5/12
Filed: 1928-07-13
Abstract: 317,957. Howard, Ltd., J. & F., and Ashby, W. H. July 13, 1928. Clutches, friction and ratchet.- Hoists and other lifting-apparatus are actuated and controlled by a rotatable member A geared to the lifting- apparatus and forming one element of a friction clutch, the other element B of the clutch, and an actuating member C which is adapted to impart rotary movement to the member B through the medium of a friction drive, and to move it into and out of engagement with the member A. The members A, B, C are arranged coaxially about a shaft D mounted at one end in a combined journal and thrust bearing E secured to the framework F and having at its other end a threaded portion D<1> which engages a threaded portion C' of the member C. The member C is mounted in a bearing I secured to the framework F, and a flange C<11> on its inner end engages between an annular plate K secured to the member B and a series of friction discs L mounted in a recess in the end of that member. A spring O is placed between the outer end of the shaft D and a flanged member P disposed within the member C. A wheel J attached to the member C is rotated by hand or power. Unintentional reverse rotation of the member B is prevented by a pawl which engages ratchet teeth H.
Patent GB-516085-A (GB)
Title: Improvements in coin testing devices
Filed: 1938-07-11
Abstract: 516,085. Testing coins in coin-freed, apparatus. BRECKNELL, MUNRO & ROGERS (1928), Ltd., and DOLMAN, H. J. July 11, 1938, No. 20446. [Class 27] In coin-testing and gauging devices a coin fed to a movable carrier is engaged by coin-gauging means thereon that control coin-retaining means distinct from said gauging means, whereby coins of certain dimensions only are retained in the carrier and such a coin is released subsequently after being carried a substantial distance in the carrier. The coin is delivered to a casing 8 where it rests on a carrier 3 pivoted at' 2 and is located by a slot 80. In passing it trips the nose 13 of the lever 11 and reaches a position between the fixed point 17 and the point 12 on the lever.' The casing 8 and the pivot 10 of the lever are slightly inclined so that the coin is biassed towards the points 17, 19 and the lever 11 is biassed towards the coin. The weight of the coin causes the carrier to tilt. Coins of correct thickness are gauged by the points 12, 17 which permit the nose 13 of the lever 11 to retain the coin until the lever strikes a fixed cam 27. The coin then rolls off into a chute. An overthick coin will not be retained by the lever 11 and will roll off at an earlier stage into a separate chute. In a modified construction the nose-piece 13 of the lever is pivoted thereto so that pressure of the coin tending to escape from the pocket tends to rotate the nose-piece farther into the casing.
Patent GB-599216-A (GB)
Title: Intermittent driving mechanism
IPC: H03J5/22
Filed: 1945-08-09
Abstract: 599,216. Intermittent driving mechanism BENDIX AVIATION CORPORATION. Aug. 9, 1945, No. 20450. Convention date, Aug. 30, 1944. [Class 80(i)] [Also in Group XXXVIII] Intermittent driving mechanism, particularly for the remote control of variable condensers in radio apparatus comprises a continuous drive shaft 14, Figs. 2, 3, carrying a number of axially and circumferentially spaced pins 26-31 which co-operate successively with corresponding arm s 26a-31a on a driven shaft 15 to impart a step-by-step rotation thereto. The engaging surfaces of the arms 26a-31a are arcuate and of a curvature corresponding to the path of the pins 26-31 so that over a substantial angle of movement of the engaging pin 26 as shown no movement is transmitted to the corresponding arm 26a and shaft 15. During this period of no drive the arm is kept in contact with the pin by a spring detent 44, 45 operated by the preceding pin 31. The mechanism may be operated by an electric motor 17 under remote control through a circuit shown in Fig. 6. A manually operable switch 63 for selecting a desired position to which the mechanism is to be operated completes the motor circuit through one of a number of contacts engaging a conducting disc 64 secured to the driving shaft 14, and the motor is rotated until a notch 72 in the disc reaches the operative contact and breaks the circuit to stop the motor. The step-by-step mechanism allows for a certain amount of over-run of the motor without further operation of shaft 15 and the tuning mechanism driven thereby. The pins 26 - 31 are shown equally spaced but any other suitable spacing may be provided so long as there is no interference between successive arms and that one arm is always in a position to be engaged. A driving motor having a permanent magnetic field may be braked by shortcircuiting the brushes by a relay actuated when the current is switched off.
Patent GB-148521-A (GB)
Title: Improvements in aeroplanes
IPC: B64D7/02
Filed: 1920-07-10
Abstract: 148,521. Ago Flugzeugwerke Ges. Oct. 6, 1915, [Convention date]. Planes, connecting together; guns, disposition of.-Relates to aeroplanes in which the propeller is in front and a machine gun is in rear of the pilot, and consists in employing supporting- frames b, c which cross one another at an angle, and in confining the struts, stays, and similar parts to the planes of the rear frames c, so that a wide field of fire is secured for the machine gun g mounted at the junction of these.
Patent GB-957802-A (GB)
Title: Improvements in or relating to ultrasonic transducers
IPC: B06B1/06
Filed: 1960-06-10
Abstract: 957,802. Piezo-electric elements. BRANSON INSTRUMENTS Inc. June 10, 1960 [June 12, 1959], No. 20511/60. Heading H1E. [Also in Division H4] An ultrasonic transducer comprises two piezo-electric discs 12, 14, Fig. 3, disposed between a front member 24, Fig. 1, and a back member 20 and subjected to substantially uniform pressure (e.g. 2,000 to 5,000 lbs./sq. in.) applied by said members 20, 24. The discs are of barium zirconate titanate. Metal films 16a, 19a, 23a, 26a between the opposing faces of the discs 12, 14 and members 20, 24 are of metal not more readily oxidizable in air than silver and are such that, under the action of the applied pressure, they can flow to fill up imperfections and voids in the opposing faces. The films are of silver, gold or platinum. Front member 24 is a frusto-conical aluminium horn and back member 20 is a steel plate. A nickel disc 32 separates discs 12, 14. Screws 34 clamp the parts together. Member 20 and discs 12, 32, 14, together form a unit of  wavelength thickness at an operating frequency of 20 kilocycles/second. Horn 24 is also of  wavelength thickness at this frequency. Input electrical signals are applied across disc 32 and terminal 36.
Patent GB-320622-A (GB)
Title: Improvements relating to electric cut-outs
IPC: H02G3/08
Filed: 1928-07-16
Abstract: 320,622. Henley's Telegraph Works Co., Ltd., W. T., and Nichols, W. H. July 16, 1928. Fuse boxes, cases, and covers; junction boxes.-An enclosure for a cut-out or fuse is provided with a metal base plate covered with a layer of flame-proof material, and a removable fame-proof insulating cover. The metal base plate may be formed by a part of another device such as a sealing chamber attached to the cut-out. Figs. 1 and 2 show a fuse enclosed in a chamber comprising a metal base plate 5 covered with a layer of flame-proof material 4 and having a cover 3. The layer 4 may consist of asbestos board attached to the plate 5 by shellac, or the screws 6 which hold the fuse base 1 in position may be used for this purpose. The cover 3 is held in position by flanges 8, 9 which engage under tongues 13, 14 formed on two flanged back plates 11<a>. 11 which engage the plate 5. The cover can be removed by a tilting movement, but can be secured against removal by a bar 15 of semi-circular shape which passes through holes in the plate 11<a> and under the tongues 13 and is secured by a seal 16. When the bar 15 is rotated through a right angle from the position shown in Fig. 2 the cover can bo removed. Cables enter the fuse box through openings 17<a>, 17, and a sealing chamber 20 may be connected to either end of the box by means of nuts and bolts. Fig. 4 shows a modification in which the metal base plate of the fuse box is formed by a wall 25 of a sealing chamber attached to the box. Connection between the cable 35 and the fuse is made by means of a metal ferrule 32 which embraces the bared end of the cable and has an extension 33 passing through a rubber plug 28. The cover 3 is fastened to the flameproof layer 4 by catch plates 36 pivoted at 37 as shown in Fig. 3 and engaging flanges 38, 39 on the cover as shown in Fig. 4.
Patent GB-148828-A (GB)
Title: Process for the better distribution of light of electric lamps
IPC: H01K1/28
Filed: 1920-07-10
Abstract: 148,828. Westfõlische Gasgl³hlicht- Fabrik F. W. & Dr. C. Killing. Dec. 4, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Reflector-holders.-The Specification describes an electric lamp wherein a hollow conical reflector is arranged below the light source, and may rest on the lower part of the bulb. Fig. 4 shows an incandescent lamp in which the reflector a, b, c, d is cemented or fused to the bulb. The invention is also applicable to arc-lamps, particularly those with inclined electrodes.
Patent GB-258062-A (GB)
Title: Improvements in or relating to roads and ways
IPC: E01F9/08
Filed: 1925-08-18
Abstract: 258,062. Brown, R. F. Aug. 18, 1925. Surface markings and signs.-A road marking device visible both' by night and day comprises a long narrow trough A embedded in the road B and fitted with pieces of white or distinctively coloured material D disposed alternately with transparent or translucent pieces C. Lamps E, connected together, are inserted into the lower part of the trough A, preferably so as to lie each beneath a transparent piece C. The pieces C, D are supported at their ends only.
Patent GB-638088-A (GB)
Title: Improvements in or relating to spinners for variable pitch propellers
IPC: B64C11/14
Filed: 1947-07-30
Abstract: 638,088. Screw propellers. ROTOL, Ltd., and DANVERS, E. July 30, 1947, No. 20687. [Class 114] The hole 10 in the spinner through which the blade 9 of a V.P. screw passes is closed by a plate 14 of part spherical shape mounted to move on bearing 12 parallel to the spinner surface. The plate is rotated by plates 15 contacting the blade surface. In a modification the plate is rotated by links connected to a collar on the blade root.
Patent GB-733042-A (GB)
Title: Improvements in and relating to the weaving of textile fabrics
Inventor: LENTON AYLMER INGRAM
IPC: D03D49/62
Filed: 1953-07-27
Abstract: 733,042. Reeds for looms. HAWORTH & CO. (MANUFACTURING), Ltd., R. Jan. 14, 1954 [July 27, 1953], No. 20725/53. Drawings to Specification. Class 142(2). In a reed there are provided groups of dents, the density of each group increasing successively from each end to a maximum at the centre, the successive groups of increasing density from each end being first of decreasing width, followed by groups of increasing width until the central portion of maximum density is reached. Specification 733,041 is referred to.
Patent GB-951621-A (GB)
Title: An apparatus for opening, carding and cleaning fibrous materials
Inventor: AOKI KUNIO
IPC: D01G9/10
Filed: 1960-06-13
Abstract: 951,621. Carding engines. DAIWA BOSEKI KABUSHIKI KAISHA. June 13,1960, No.20755/60. Heading D1N. Apparatus for producing and regulating an air current so as to effect separation of fibres and remove short fibres and impurities in a carding machine comprises, in proximity to both a takerin and a main cylinder, a worker roller or a cage roller formed with perforations on its exterior and a suction tube mounted therewithin so that its opening is directed towards the position of contact of the taker-in with the cylinder. In the apparatus shown in Fig. 1, air drawn through a suction tube 7 by a fan 9 causes low pressure (in the spaces enclosed by taker-in 3, cylinder 5 and worker roller 6, and between the taker-in and its cover 12) which, in co-operation with the air current produced by rotation of cylinder 5, causes still lower air pressure under the point of contact of taker-in 3 with cylinder 5 so that air current under the taker-in in the direction of rotation thereof is regulated and objectionable eddy currents in the region of such contact are eliminated. Another embodiment, Fig. 2, comprises taker-in 3, cylinder 5, cage roller 6, suction tube 7 leading by a duct 10 to fan 9, worker roller 11, division sheet 12, covers 13,14 and 15,back sheet 16 and undercasing 17.
Patent GB-1532614-A (GB)
Title: Printer
IPC: B41J29/18
Filed: 1977-05-18
Abstract: 1532614 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 18 May 1977 [25 June 1976] 20895/77 Heading B6F To facilitate viewing of the print line, print head carriage 41 is movable transversely to the print line to adjust the print line position on the curved platen surface 15. The surface is curved about at least one axis, however the distance between the carriage and the surface is maintained during the transverse movement. As shown cams 69, 71 rock end plates 63, 65 supporting guide rails 57, 59; the spacing between the carriage and platen surface being maintained by pins and curved slots in the printer frame and plates 63, 65 respectively.