baber/WOPTO huggingface dataset:
Patent GB-781613-A (GB)
Title: Improvements in or relating to perpetual calendars
IPC: G04C17/00
Filed: 1955-02-23
Abstract: 781,613. Electric clocks. SIMMONDS, L. P. Feb. 22, 1956 [Feb. 23, 1955], No. 5462/55. Class 139 [Also in Group XIX] An electrical system for registering time and date comprises time and date symbol indicators (not shown) each advanced by an associated electro-magnetically operated stepping mechanism which also advances an associated selector switch each mechanism being energized by a pulse derived from a clock pulse generator C having one set of time change contacts t and another set of four date change contacts d, the latter being sequentially made and broken at regular intervals whilst the time change set t is synchronized with the last of the date change sets of contacts d, the circuit to all the electromagnets except that associated with the lowest order symbols, being controlled by at least one of the other selector switches. Time-keeping. Once a minute the generator C passes a pulse through contacts t to the units of minutes magnet U.M. to advance a units indicator and the contact arms of double bank selector switch U.M.S. Every tenth pulse passes through the then closed outer contacts 20 to the tens of minutes magnet T.M. to advance a tens indicator and selector switch T.M.S. Normally, every sixtieth pulse passes through T.M.S. contacts 21, via contacts 22 or 23 of summer time selector switch S.T.S. to the hour magnet H, every twelve hours the pulse passes through H.S outer contacts 30 to the a.m.-p.m. magnet A.P. and every twenty four hours through A.P.S. contacts 31 to the day magnet D. Alarm circuit. Four manually operated single bank selector switches may be provided with twelve, six, ten and two contacts respectively tied to corresponding contacts of the hour, tens and units of minutes and a.m.-p.m. selector switches. The contact arms of first and last and of the middle two are ganged together to complete positive and negative supply leads to the alarm when the set time is reached.
Patent GB-538921-A (GB)
Title: Improvements in tuned circuits
IPC: H01P7/02
Filed: 1940-03-26
Abstract: 538,921. Lecher wires. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 26, 1940, No. 5472. Convention date, March 22, 1939. [Class 40 (iii)] The voltage nodal point of a Lecher wire system formed from parallel strips A, B or A<SP>111</SP>, B<SP>111</SP> is adjusted by means of a rotary member C or C<SP>111</SP> acting on the system capacitively. In a modification, Fig. 2 (not shown), the strips are curved to a cylindrical surface and the adjusting member is part of a co-axial cylinder. In another arrangement, Fig. 3 (not shown), the strips are straight and face each other and the adjusting member moves between them.
Patent GB-536710-A (GB)
Title: Sound transmission system
IPC: H03G9/00
Filed: 1940-03-28
Abstract: 536,710. Electric filters. ELECTRICAL RESEARCH PRODUCTS, Inc. March 28, 1940, No. 5557. Convention date, April 13, 1939. [Class 40 (iii)] [Also in Group XXXIX] In a reproducing, or recording, system, speech originating at one energy level and having the energy-frequency distribution of that level is reproduced or recorded at an apparently different level by "equalization" of the speech currents so that they have the energy-frequency distribution peculiar to the different level. The system is particularly applicable to studio recording where the actors tend to speak with subdued voices rich in upper and lower frequencies and lacking in the middle frequencies. It is however applicable to reproducing speech at an apparently subdued level when it is delivered at declamatory level rich in the middle frequencies. The arrangement shown in Fig. 9 provides for normal reproduction over pad 38 in addition to changes' from loud to soft levels and vice-versa, the circuits being selected by switches 35, 36. Filter 37 for making loud speech appear subdued reduces the middle frequencies relatively to the upper and lower frequencies and has adjustable resistance elements for controlling the output. Filter 39 has the opposite effect on speech. Equalization over selected portions of the frequency range may be affected at different points in the system e.g. the lower frequencies may be dealt with at one point and the higher frequencies at another.
Patent GB-572353-A (GB)
Title: Improvements in hook bolts
IPC: E04D3/36
Filed: 1944-03-27
Abstract: 572,353. Bolts. CARTER, G. M., and MILLER, F. March 27, 1944, No. 5618. [Class 89 (i)] To enable a hook bolt, such as those used in glazing a roof, to be inserted from the exterior of the building the end of the hook is splayed outwardly at 3 and tapered.
Patent GB-198068-A (GB)
Title: Improvements in and relating to hair curlers and wavers
IPC: A45D2/32
Filed: 1922-02-25
Abstract: 198,068. Sartory, P. Feb. 25, 1922. Hair-curling appliances. - In a curler for permanent hair waving comprising a sleeve or mandrel rotatable on a fixed axis member, the projecting end of the latter carries an adjustable clamping device to grip the hair near the roots. In the form shown in Figs. 1 and 3, the axis member 1 is cylindrical and is provided at its inner end with a boss 2, perforated at 3 and 4. On the member 1 is arranged to rotate a sleeve 5. Within the outer end of the member 1 is a sleeve 8, internally threaded to engage a rod 9 which extends through the member 1 and projects through the aperture 4 in the boss 2. The projecting end of the rod 9 is formed into a hook 10 which engages in the hole 3 of the boss and forms a loop within which the hair is clamped. The sleeve 8 is externally threaded to engage with a thread inside the member 1, this thread being opposite-handed to that on the rod 9. Alternatively, the sleeve 8 may have a plain exterior, with a collar 11<a> bearing against the end of the member 1. In the form shown in Fig. 5, a flexible member 13 of material such as cat-gut or wire is connected to a screwed rod 9 which engages in the sleeve 8 and is provided with a flattened part 9<a> working through a guide 1<a> which prevents it from turning. The flex 13 passes through a hole in the side of the boss 2 and is attached to a plug 14 which seats in a recess in the end of the boss, a lateral slot 15 being formed for the flex 13, which thus forms a loop which can be contracted on the hair by rotating the sleeve 8. The plug 14 may be conical. Specification 183,502 is referred to.
Patent GB-285258-A (GB)
Title: Improvements in apparatus for the colloidal dispersion of material in fluids
IPC: B02C19/06
Filed: 1927-03-01
Abstract: 285,258. Bourdais, J. March 1, 1927. Emulsions, making.-The colloidal dispersion of material in a suitable fluid is effected by a grid or circular ring through which the material is forced under pressure, the grid or ring being built up of a number of plates 61 provided with spacing shoulders 62 to leave a predetermined distance 63 between the surfaces of adjacent plates. The plates are mounted in a frame 64 provided with securing screws 65. In Fig. 6 a centrifugal mill is shown for forcing the fluid and material through nozzles 32, 33, 34 of the rotor ducts 30 on to grid surfaces 25 carried by a member 21, which may be stationary or adapted to be rotated in either direction. The ducts 30 of the impeller 27 are fed through an inlet pipe 17, the members 21, 27 being mounted on coaxial shafts 13, 14. The material discharged from the nozzles impinges upon the grid surfaces and passes into a chamber 16 through passages 45. The grids may be mounted directly on the inner wall of the outer casing.
Patent GB-708874-A (GB)
Title: A process for the production of vulcanised microporous separators of raw rubber
IPC: H01M50/491
Filed: 1952-03-04
Abstract: A microporous hard or soft rubber composition is made by rubbing together a substance of high boiling point which raises the evaporation point of water and facilitates adsorption of water by rubber, e.g. glycerol or ethylene glycol, concentrated aqueous ammonia, sulphur, an accelerator of vulcanization, a filler such as kaolin, and then waterglass, until the gel which forms on incorporation of the waterglass is reduced to crumbs, mixing these crumbs on rollers with raw rubber, treating the mixture as by calendering or extending, and finally vulcanizing.  The weight of gel, including the filler, may be five times that of the rubber. For increasing the porosity, substances such as starch and ammonium carbonate may be incorporated.  When the product is to be used for separators for electric accumulators a metal-free accelerator such as tetramethylthiuramdisulphide is used.
Patent GB-1247827-A (GB)
Title: Cassette-type magnetic tape recording and reproducing apparatus
IPC: G11B15/10
Filed: 1968-12-10
Abstract: 1,247,827. Cassette players. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 10 Dec., 1968 [12 Feb., 1968], No. 5839/70. Divided out of 1,246,470. Heading G5R. A cassette is only able to be lifted for removal when a mode selector control is in a predetermined position. As shown, depression of a button 123 causes a member 132 to pivot about an axis 134 and lift a cassette 122 while a rod 135 enters an aperture 140 in a drive control element 138 in the inoperative position.
Patent GB-954282-A (GB)
Title: Improvements in or relating to the securing of plastic ornamental strips
IPC: B29C65/04
Filed: 1963-02-13
Abstract: 954,282. Seaming non-metallic sheet material. REHAU-PLASTIKS GESELLSCHAFT MIT BESCHRANKTER HAFTUNG. Feb. 13, 1963 [Dec. 17, 1962], No. 5883/63. Heading B5K. In a method of applying a plastic ornamental strip 1 with a metallized surface 2 to a plastic or plastic containing base, the ends of the strip are obliquely undercut as at 3 on the surface remote from the metallized surface 2 whereafter the strip is welded to said base by high-frequency welding, the end or ends being bent over and pressed against the base surface during the welding operation. The strip is preferably supported in an electrode adapted to receive it and having at one or each end an arcuate surface defining the final contour of the end of the strip when secured on the base surface.
Patent GB-564911-A (GB)
Title: Improvements in radio receivers of the superheterodyne type
IPC: H03D7/10
Filed: 1943-04-14
Abstract: 564,911. Electric converters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 14, 1943, No. 5954. Convention date, April 14, 1942. [Class 38 (ii)] [Also in Group XL] The frequency converter in a superheterodyne receiver comprises a coil having a ferro-magnetic core, the permeability of which varies in a non- linear manner with the magnetizing current, fed from a source of local oscillations and the signal so as to cause variations in the magnetizing current whereby signals of intermediate frequency are generated in the converter. The Figure shows a signal amplifier 11 of, say, 1,700 kc. and a local oscillator 12 of, say 2,500 kc. feeding the coil L1. The coil L1 may be closely wound on a powdered magnetized core SC having a length of one inch and a diameter of .160 inch. In this way the large ratio of length to diameter produces considerable flux concentration so that the non-linearity effects, the frequency conversion. The second harmonic of the local oscillator combines with the signal to give an intermediate frequency of 3,300 kc. The signal intermediate frequency circuits may be tuned by conventional iron cores M1, M3.
Patent GB-1377804-A (GB)
Title: Silica glass elements
IPC: C03B32/02
Filed: 1972-02-09
Abstract: 1377804 Silica glass element QUARTZ & SILICE 9 Feb 1972 [25 Feb 1971] 5962/72 Heading Cl A silicon glass element has on at least two mutually opposed surfaces thereof a coating of cristobalite. The element is produced by depositing on the surfaces at least one nucleating agent and subjecting the thus treated surface to a heat treatment. The nucleating agent may be Al, Mg, Ca, Cs or mixtures thereof. A protective coating of fused silica may be provided upon the cristobalite surfaces.
Patent GB-1536951-A (GB)
Title: Hinge and link device for doors partitions and the like
IPC: E05D3/06
Filed: 1976-02-16
Abstract: 1536951 Hinges A C WORRALLO 16 Feb 1976 [21 Feb 1975] 06028/76 Heading E2F In a hinge structure, a first gear segment 14 in one hinge component 10 of the structure meshes with a second gear segment 14 in the other hinge component 10 and a link 20 is pivotally connected to each gear segment, the axes of the gear segments co-inciding with the axes of the pivotal connections 22 between the link and the gear segments 14. As shown in Figure 1, each hinge component 10 comprises a pair of axially spaced, co-axial gear segments 14 with a spacer member 42 therebetween, the gear segments 14 and the spacer member 42 all being mounted on base elements 12.
Patent GB-881331-A (GB)
Title: Manufacture of nodular iron
IPC: C21C1/10
Filed: 1958-02-25
Abstract: A preliminary treatment of cast iron containing graphitic carbon to render it susceptible to subsequent nodularising treatment, consists in adding to the molten iron a calcium slag comprising one or more calcium compounds and carbon with or without a fluxing agent, and then adding the nodularising agent, and casting the melt.  Calcium compounds used include, limestone; calcium silicide, oxide, carbide or fluoride, or mixtures thereof. Chloride, sulphate, and nitrate of calcium are excluded.  Calcium fluoride is used as a flux.  The carbon may be in the form of coke, graphite, or calcium carbide.  The preferred mixture is 3% limestone, 0,75% fluorspar and 1% coke by weight of the melt. The slag may be added to the top of the melt, and after 10 to 20 mins. tapped into a ladle when the nodularising agent is added. For example, 80% of pig iron containing Si, S, P, Mn and over 4% of carbon is mixed with 20% of "silvery iron" containing Si, and the preferred calcium slag mixture added.  After 10 to 20 mins. 0,8% of an alloy containing 5% Misch metal, 20% Mg and 75% Cu are added as nodularising agent.  Specifications 727,401 and 732,312 are referred to.
Patent GB-115421-A (GB)
Filed: 1918-04-09
Abstract: 115,421. Bennert, C. April 30, 1917, [Convention date]. Albumens &c.-Products of the type of protalbinic and hysalbinic acid are obtained by hydrobyris of waste chrome leather shavings or cuttings by dilute alkalis. According to examples : -Chrome leather shavings are treated with hot dilute caustic soda lye, the liquor is cooled, filtered, neutralized with formic or acetic acid, and concentrated in vacuo to a syrupy consistency; chrome leather cuttings are boiled in water, treated with very dilute caustic alkali lye, then stirred with water and sand or pumice to remove varnish and colouring matter, again boiled with water, finally decolourized by bleaching agents, and then hydrolyzed as described above. The products are intended for use in the textile industries. Specification 6103/89, [Class 76, Leather], is referred to. The Specification, as open to inspection under Sect. 91 (3) (a), refers also to the treatment of waste leather in general, including vegetable tanned leather, by the process described above. This subject-matter does not appear in the Specification as accepted.
Patent GB-1065231-A (GB)
Title: Safety hooks
Inventor: SHAND THOMAS GEORGE
IPC: F16B45/02
Filed: 1964-02-13
Abstract: 1,065,231. Hooks. BARROW HEPBURN & GALE Ltd. Feb. 2, 1965 [Feb. 13, 1964], No. 6066/64. Heading F2H. A hook 1 for a personal safety belt or harness has a pivoted mousing-piece 2, loaded by a spring (not shown), to its closed position and locked in that position by a surrounding sleeve 4 which is rotatable against the action of a spring (9) in the sleeve to an unlocking position permitting the mousing- piece to be opened. The sleeve spring could be a compression spring. In Fig. 1 the mouse 2 is pivoted at 3 and an extension 5 of the sleeve 4 engages the nose 6 of the hook to lock the mouse until the sleeve is rotated through 180 degrees to contact the other side of a stop 12. In a modification, Figs. 3, 4 (not shown), when the mouse (2) is open, the sleeve (4) is held in the unlocked position by a notch (16) on an extension of the sleeve straddling a nose (13a) on the lug (13) of the hook (1) on which the mouse (2) is pivoted. A similar notch (29), Figs. 5-7 (not shown), and a lug (30) co-act for the same purpose in another embodiment in which a mouse (17) pivoted at (18) is locked closed by a sleeve (19a, 19b) having an inturned end (27), with opposed notches 26, for engaging on the T-shaped end (28) of the hook nose. The end of the sleeve is a separate piece (19a) secured to the main piece (19b) by a pin (22) and providing two quadrant slots (24) for the ends of a pin (23) protruding from the mouse (17) so that the sleeve can be moved only by turning against a spring (25) through 90 degrees about the mouse, for permitting release from the hook end (28).
Patent GB-326005-A (GB)
Title: Improvements in trucks
IPC: B61F15/04
Filed: 1929-02-26
Abstract: 326,005. Skerrett, H. N., (Timken Roller Bearing Co.). Feb. 26, 1929. Axle-bearing guiding-arrangements; axles; axletrucks.-In railway &c. trucks of the kind in which guide members on the frame pedestals cooperate with parts on the axle or axle housing, a tilting movement of the axle relatively to the pedestals being permitted by means of members pivotally mounted on the axles &c. and slidably engaging the pedestals, guide blocks are pivotally mounted on the axle or axle housing and have on their outer faces parallel guide ribs or flanges for sliding engagement with the pedestals. As shown the live axle 2 is mounted in a housing 3 which is guided in the pedestals 9 by guides 12 comprising blocks 14 with bearing holes 15 and ribs 16, the blocks being rotatable on trunnions 13 integral with the housing 3. The frame 7 is mounted on springs 8 carried by equalizing bars 6 which bear on the tops 5 of the housing 3. The frame carries the pedestals 9 which are connected together and to adjacent pedestals by bars 10. The guides may be mounted on the journal boxes if such are used or on the axles themselves in the case of stationary axles.
Patent GB-1140492-A (GB)
Title: Aerosol metallic coating formulations with improved resistance to deleafing
IPC: C09D133/08
Filed: 1967-02-09
Abstract: 1,140,492. Aerosol coating compositions containing acrylic binders. ALLIED CHEMICAL CORP. 9 Feb., 1967 [17 Feb., 1966], No. 6311/67. Heading C3P. [Also in Divisions B2 and C4] An aerosol metallic coating formulation with improved resistance to de-leafing comprises (a) a pigment comprising finely divided metal particles, (b) a propellant comprising difluorodichloromethane and vinyl chloride, (c) a binder comprising an acrylic resin and a solvent therefor, and (d) as de-leafing inhibitor, nitromethane, phenol, monomethyl ether of hydroquinone, α-methyl styrene, 2,2<SP>1</SP>-methylene - bis - (4 - methyl - 6 - tert - butyl - phenol), 4,4<SP>1 </SP>- methylene - bis - (2,6 - di - tert - butylphenol), 2,5 - di - tert - butyl - hydroquinone, isostearic acid (a liquid, methyl-branched isomer of stearic acid), an epichlorohydrin-bisphenol A condensate or a mixture of any of these. The acrylic resin may be a homo- or co-polymer of methyl or ethyl acrylate, or of ethyl, n-propyl, n-butyl or iso-butyl methacrylate. The solvent may be toluene, xylene, ethylene dichloride, dichlorobenzene, acetone, hexane, ethyl acetate, butyl lactate, dibutyl phthalate, ethoxyethyl acetate or carbitol acetate and may additionally contain methanol or ethanol. The pigment may be aluminium, copper, gold, silver, zinc, magnesium, stainless steel, Cu-Zn alloy, Al-Sr alloy or brass. In tests, the compositions were stored for a time then applied to wood and metal panels from aerosol containers.
Patent GB-558075-A (GB)
Title: Improvements in or relating to control gear for electric motor driven mechanisms
IPC: H02K7/12
Filed: 1942-05-11
Abstract: 558,075. Rotor driving arrangements. MESSIER AIRCRAFT EQUIPMENT, Ltd. (formerly RUBERY OWEN MESSIER, Ltd.), and ARNOT, A. May 11. 1942, No. 6373. [Class 35] [Also in Group XXXVII] A light weight motor used for adjusting apparatus such as described in Specification 553,789, [Group XXXVIII], is stopped quickly upon de-energization by a brake or detent device. The motor drives its load shaft 46 through a friction clutch 25, 26 and a double worm reduction gear. A pivoted armature 36 completes the magnetic circuit of the field when the coils 21 are energized, but when the coils are de-energized, a spring retracts the armature and moves a stop member 31 into a notch in the clutch disc 26 thereby arresting the motion of the shaft 46. The friction clutch slips so as to allow the motor armature to come to rest without excessive shock.
Patent GB-801210-A (GB)
Title: Improvements in or relating to enclosures for electric discharge tubes and the like
Inventor: EDWARDS STANLEY JOHN FREDERICK
IPC: H01J5/12
Filed: 1956-03-01
Abstract: 801,210. Holders for thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 1, 1956, No. 6462/56. Class 38 (1). [Also in Group XL (a)] A dust-proof enclosure for an electric discharge tube having at least one contact at each end comprises at least two sections made of insulating material which can be assembled together in an adjustable manner, and having sockets or contacts for engaging the tube contacts. The two sections 1 and 4 shown are made of polythene; they may be formed so as to screw together, but preferably an annular rib 7 is pushed into one of the annular grooves 8, according to the size of the enclosed tube. The upper section 1 carries a contact 2 for engagement with the top connection of the tube. The lower section 4 is moulded round a valve base 5 the pins of which are surrounded by a corona shield 16; this may be connected to one of the pins, if desired. An ancillary cap 11 may be used to close the bottom of section 4. Fig. 2 (not shown) is a modification in which the socket 5 and contact 2 are both in the same section of the enclosure, the cap 11 in this case forming the adjustable second section.
Patent GB-432528-A (GB)
Title: Improvements in and relating to mounting arrangements for the chucks or the like of machine tools such as lathes and the like
IPC: B23Q3/12
Filed: 1935-03-01
Abstract: 432,528. Mounting chucks &c. on spindles. LANG & SONS, Ltd., J., Mary Street, LANG, W. B., The Grange, and SHACKLETON, E., Marrel Dene, all in Johnstone, Renfrewshire. March 1, 1935, No. 6474. [Class 83 (iii)] In mounting chucks, face-plates, &c. on lathe and like spindles, the spindle 1 terminates in a flange 3 having circular holes 7 through which pass studs 6 on the chuck 2. A ring 4 is rotatably mounted on the spindle adjacent the flange 3 and is provided with key-hole slots 5 to receive the studs. When the wider ends of the slots 5 are in line with the holes 7, nuts and washers 8, 9 on the studs may be passed through to the position shown in Fig. 1, whereupon rotation of the ring 4 brings the narrow ends of the slots under the washers and the chuck is secured by tightening up the nuts 8. The chuck is centred by a conical spigot 10 on the flange 3 and is driven by a key 12 on the flange engaging a slot 13 therein. Tommy bar holes 14 are provided in the ring 4 and its rotation is limited by a pin 15 on the flange 3 engaging an arcuate slot 16 in the ring. Springs 17 maintain the washers 9 in contact with the nuts 8 to facilitate insertion through the slots 5.