baber/WOPTO huggingface dataset:
Patent GB-1343381-A (GB)
Title: Electric motors
IPC: H02K5/14
Filed: 1972-07-17
Abstract: 1343381 Brushgear for dynamo-electric machines METABOWERKE KG CLOSS RAUCH & SCHNIZLER 17 July 1972 [9 Aug 1971] 33306/72 Heading H2A An electric motor having a housing 1 of synthetic plastics material comprises brush holders 2 each including a brush guide 4 surrounded by a jacket 7 of heatproof synthetic plastics material, the housing being injection-moulded around the brush holders. The housing 1 and jacket 7 are respectively of thermoplastic and thermosetting material. The jacket has raised portions 8, 9, to improve anchorage in the housing. The brush guide 4 is of sheet brass. A cover 11 for the brush holder is held in position by screws.
Patent GB-386094-A (GB)
Title: Improvements in air and like filters
IPC: B01D46/26
Filed: 1931-12-02
Abstract: 386,094. Dust-filters. WHITEHEAD & SONS, Ltd., G. and WHITEHEAD, C., Salford Works, Todmorden, Lancashire. Dec. 2, 1931, No. 33365. [Class 8 (ii).] A filter comprises a set of perforated cylinders i lying loosely and eccentrically one within another and rotatable either continuously or when required to be cleaned within a casing having inlet and outlet orifices, the cylinders dipping into or being sprayed with oil. A reel on a shaft e carries the cylinders by a shoulder h on one of its endplates, felt or other packing j being provided. The cylinders may be of expanded metal, and two or more sets of cylinders may be disposed in one casing.
Patent GB-366576-A (GB)
Title: A combined dark-room lamp and clock, for photographic purposes
IPC: G03D17/00
Filed: 1930-11-06
Abstract: 366,576. Clock combined with darkroom lamp. FARRER, W. J. G. and ILFORD, Ltd., Ilford Works, Ilford, Essex. Nov. 6, 1930, No. 33438. [Class 139.] In a darkroom lamp combined in a single unit with a clock, the time-indicating device of the latter is a rotatable disc located in front of the illuminating means, whereby the latter illuminates the time indications. An opaque dial 9 of celluloid or glass, mounted adjustably on the minute spindle 7 of the clock 6 by means of nut 8, has minute and half-minute lines and minute numerals on it which are translucent and are illuminated by the dial overlapping the coloured screen 4 of the lamp. A shield 11 between the lamp and dial has a rectangular opening 13 and an indicating slot 12 (or translucent arrow) so that three numerals are lit up at once. Dial 9 rotates clockwise and to time an operation of, say, five minutes the dial is adjusted on the spindle 7 by loosening nut 8 and the number five is set opposite slot 12. The clock is then started and the numbers rotate past slot 12 in the order 5, 4, 3, &c. When zero is reached an alarm may be given such as ringing a bell. The minute numerals may be in the reverse order to above, the dial being set at zero to commence. The dial may be translucent and the indications opaque.
Patent GB-996313-A (GB)
Title: Circuit arrangement of the end-stage of a frequency modulated voice frequency telegraphy or remote control receiver
IPC: H04L27/14
Filed: 1963-08-23
Abstract: 996,313. Telegraphy; multiplex systems. TESLA, NARODNI PODNIK. Aug. 23, 1963 [Sept. 20, 1962], No. 33441/63. Headings H4P and H4R. The output stage of a voice-frequency f.s.k. telegraph receiver is arranged so that, in the event of absence of signal, the output relay takes up the " Start " position. A faultindicating relay common to all channels of a multiplex system operates if any channel receives no frequency. A conventional output arrangement following the discriminator DS comprises transistors T1, T2, and polarized relay P1, P2. This stage forms one arm of a bridge whose other arms are R1, R2, and R3. A third winding P3 of the relay is in series with a diode D, i.e. forms the diagonal of the bridge. If there is no output from the discriminator both transistors are cut off and diode D therefore conducts, energizing P3 so that the polarized relay is brought to the " Start " position. If there is a number of incoming channels the presence of a fault in one or more of them can be indicated by a second bridge circuit, Fig. 4. In this two arms are formed by resistors R4, R5 and the third and fourth arms are formed by resistors R1 and the output stage of each channel. The diagonal includes an error indicating relay S which is connected to each third and fourth arms by isolating diodes OD.
Patent GB-247236-A (GB)
Title: Improvements in or relating to closing arrangements of dental flasks for the injecting process
IPC: A61C13/16
Filed: 1922-12-08
Abstract: 247,236. Joannides, C. Dec. 8, 1922. Dental flasks.-A dental flash of the kind described in Specifications 165,879 and 247.237, carries a movable member with an opening adapted to register or not with an opening in plaster leading to the interior of the mould. The member is preferably in the form of a disc g encased in the wall of the flask and formed with an eccentric opening h. The part i of the opening is tapered to connect with the nozzle of an injection cylinder. Specification 199,746 also is referred to. Reference has been directed by the Comptroller to Specification 165,879.
Patent GB-1508924-A (GB)
Title: Process for the manufacture of methylglyoxal dimethyl acetal
IPC: C07C67/00
Filed: 1976-08-12
Abstract: 1508924 Methylglyoxal dimethyl acetal F HOFFMANN - LA ROCHE & CO AG 12 Aug 1976 [13 Aug 1975] 33614/76 Heading C2C Methylglyoxal dimethyl acetal is prepared by reacting acetone with a nitrosating agent, isolating the resultant isonitrosoacetone and acetalizing this in the presence of a nitrosating agent and methyl alcohol. The nitrosating agent in the first step may be an alkali metal nitrate (Na) and an acid (HCl); in the second step methyl nitrite and an acid, e.g. HCl, may be used.
Patent GB-521563-A (GB)
Title: Apparatus for starting an electric spark
IPC: H01T2/02
Filed: 1938-11-18
Abstract: 521,563. Cathode-ray tubes ; spark apparatus. KENKYUJO, Z. H. R., SHIMIZU, T., and HIRATA. M. Nov. 18, 1938, No. 33625. [Class 39 (i)] In an apparatus for starting an electric spark a beam of electrons generated in a triode 3, Fig. 1, is accelerated by a highly charged spark electrode 1, arranged at the plate side of the triode ; the electrode 1 is provided with a passage 8 through which the electron beam, or X-rays generated in the electrode may emerge and which is closed gas-tight by a thin metal plate 8<SP>1</SP> penetrable by the beam or X-rays. Another spark-electrode 2 is arranged opposite the opening in the electrode 1, so that the emergent beam ionizes the gas in the sparkgap and thus initiates a spark. The electrode 2 and cathode 4 are earthed, the electrode 1 which is integral with the plate 6 is given a high potential, and the grid 5 is so connected with sources 12, 13 of unequal E.M.F. and with a switch 15 ; when the switch is closed the grid is negative and inhibits a discharge to the plate, while when it is opened the grid is made positive and a discharge at once passes and starts the spark. The circuit may be arranged so that the spark is started when the switch is closed. The plate 8<SP>1</SP>, which may be of nickel or aluminium, is sunk beneath the surface of the electrode 1, so as to protect it from the effect of the discharge. The electrode 1 may be a mere projection on a metal end wall to the triode, or may, as shown in Fig. 4 be secured over the end of a copper tube 16, which is welded in the wall of the triode, and which is fixed to the tubular extension 6<SP>1</SP> of the anode 6. The passage 8 need not be continuous, but may be interrupted by an evacuated space ; the electrode 1 and plate 6 may be connected to independent sources of potential. The circuit controlling the grid potential may be made or broken by a high-speed body, or by any electrical or optical stimulus, so that the device may be used for measuring the velocity of projectiles, or for high speed spark photography.
Patent GB-307773-A (GB)
Title: An improved machine for washing and drying bottles
IPC: B08B9/30
Filed: 1927-12-13
Abstract: 307,773. Powley & Sons, Ltd., R., and Powley, M. Dec. 13, 1927. Bottles, washing and drying. - Bottles are placed head downwards in apertures 10 in a rinsing section A, Fig. 1, over tubes 13, Fig. 3, carried by bars 12 on a conveyer 1 operated stepwise by a crank 4 at the other end of the machine. During each pause of the conveyer, headers 16, 16<a>, Figs, 3 and 4, ascend under the action of springs 20 so that hot water tubes 15 are raised and jets 14 enter the flared ends of the tubes 13 and jet the interior of the bottles while they are sealed by washers 14a. The bottles are jetted externally by tubes 22. The tubes 15 then descend under the action of cams 17 and the bottles are moved a step forward. On leaving the rinsing section, the bottles travel through the draining section B, Fig. 1, to the drying section C, in which hot air issuing from boxes 24 by perforated tops 24b passes round the bottles and is also conducted by the flared ends of the tubes 13 into the bottles. Leaving the section C, the bottles travel half way round the shaft 6<a> and are then released by a plate 29 so they drop into upright position on to a platform from which they are removed by a push bar 32 on to another conveyer. Arranged across the machine above the bottles at the rear end of the draining section B is a pipe 58 communicating at on end with a fan delivery 27 and provided on its underside with jets so that hot air is blown on to the points of the bottles to drive away the water. The drying section is preferably of the construction described in Specification 21801/14.
Patent GB-427202-A (GB)
Title: Improvements in or relating to coupling devices for rods, bars, tubes and the like
IPC: E04G7/14
Filed: 1933-12-01
Abstract: 427,202. Scaffold clamps. SCAFFOLDING (GREAT BRITAIN), Ltd., 344, South Lambeth Road, London ; and JONES, E. G. PALMER-, 3, Plough Lane, Purley, Surrey, ELIOT, E. G., 165, Fenchurch Street, London, BENNETT, W. T., 6, de Montfort Road, Streatham, London, and JONES, W. C., 39, Lansdowne Road, Stockwell, London, (Representatives of JONES, D. PALMER-). Dec. 1, 1933, No. 33767. Addition to 269,995, [Class 20 (ii)]. [Class 20 (ii)] Relates to the scaffolding couplings described in the parent Specification, and consists in providing clamping bolts 50, 51, respectively, on the clamps 20, 21, the bolts screwing into threaded recesses in the co-operating parts 10, 11, and being provided with detachable retaining devices such as a washer 71 and cotter 61, or a screw-threaded washer.
Patent GB-1035039-A (GB)
Title: Rotary selector electric switch
Inventor: SMITH LESLIE HAYNES
IPC: H01H19/58
Filed: 1963-08-27
Abstract: 1,035,039. Switches held set and freed mechanically. CARR FASTENER CO. Ltd. May 15, 1964 [Aug. 27. 19631. No. 33928/63. Heading H2B. An insulating plate 12 bearing one or more pairs of resilient bridging contacts 17a, 17b, is pivoted to a rotor member 6 rotatable with respect to a base 3 carrying fixed contacts, which may be printed circuit contacts, and after the rotor member has been rotated to a selected position a pivoted arm 8 is raised manually to press the plate 12 downwards and cause the contacts 17a, 17b to bridge the base contacts. A click stop device is provided on the rotor plate 6 comprising spring-urged balls 20 engageable in notches 5a corresponding to contacts on the base 3 (Fig. 3, not shown). A domeshaped top 6a on the rotor plate 6 has portions 6c formed with channel-shaped recesses 11 in which engage lateral pins 9 on a lug 10 of the arm 8 when the arm 8 is mounted on the plate 6 (Figs. 6, 7, not shown). Lug 10 normally sits in recess 10a of plate 12, but when arm 8 is raised the lug cams plate 12 downwardly against the restoring spring 15 and is held set in the position shown until arm 8 is lowered again. Ears 16 depending from the rotor member 6 constrain the plate 12 to rotate with the rotor member.
Patent GB-988537-A (GB)
Title: Improvements in or relating to a machine tool
IPC: B24B47/10
Filed: 1961-09-21
Abstract: 988,537. Grinding. H. DECKEL, and F. W. DECKEL. Sept. 21, 1961 [Sept. 23, 1960], No. 33925/61. Addition to 834,016. Heading B3D. A grinding machine constructed as in the parent Specification has compensating spring means arranged to urge the bearing of the cranked lever 27, 27a in a direction opposing the lateral bearing thrust generated by the pressure which maintains the cranked lever in contact with the master cam 31. One end of a tension spring 62 is attached to a lug 64 inside the cover 66, and the other end is attached to a stud passed transversely through an axial extension 60 of the pivot pin 29.
Patent GB-1394858-A (GB)
Title: Integrated circuit synthesis and bright wave organ system
IPC: G10H1/08
Filed: 1972-07-20
Abstract: 1394858 Electrophonic musical instruments HAMMOND CORP 20 July 1972 [29 Sept 1971] 34085/72 Heading G5J In an electronic organ the frequency-dividing and keying circuits for a set of octavely-related notes are in a single i.e. package. A given note is synthesized from a fundamental (f), harmonics 2, 3, 4, 5, 6 and 8, a sub-fundamental (f/2) and a sub-third (3f/2). A single i.e. (Figs. 1A and 1B), supplies all the frequencies for synthesizing the C notes of five octaves, a second i.e. (not shown), supplies the frequencies for the C # notes, and so on. In other embodiments (Figs. 4-6, not shown), there are fewer i.c.s and each provides two or more notes in each octave. The proportions of the different frequencies to give the desired tone colour are determined by drawbars 152 (Fig. 3), which set the voltages on nine rails connected to terminals 170-184 of all the i.c.s. In operation, pressing, for example, the playing key for C 2  closes contacts 171 (Fig. 3), whereupon a keying voltage, having an envelope determined by circuit 169, is fed to one of the terminals 168 of the C i.e. and thence to a block 136 (Fig. 1A), of nine keying circuits. There is one such block 136-144 for each C note. Each keying circuit comprises a pair of FETs (146, 148, Fig. 2, not shown). The keying voltage turns on all the transistors (148) of the block 136. Each keying circuit receives a square wave of appropriate frequency (the particular harmonic of the particular note), and a D.C. input from the appropriate 152 to set the level of this harmonic. The outputs of the keying circuits are fed via terminals 190-204 (Fig. 1B), to band-pass filters which convert the square waves to sine waves, and are then combined to give the synthesized note. The required frequencies for all the components of all the C notes are derived from three divider chains 16-40, 60-74 and 106-126 which are included in the C i.e. The input terminals of the divider chains are fed from clock generators. There may be twelve clock generators, giving frequencies C 8  to B 8 , in which case the harmonics are not exact, other tones in the scale being borrowed. Alternatively, there may be thirty-six clock generators, to give exact harmonics, in which case the fundamental and harmonic clock generators may be modulated differently to produce special vibrato effects. Where two or more divider chains are fed from the same clock they are synchronized by means of reset inputs 52, 94, 134 and synchronizing outputs 48, in order to avoid cancellation when notes are played together. The i.e. may include additional circuits (Figs. 7 and 8, not shown), to provide an auxiliary "bright wave" system. The square waves on lines 14-42 (Fig. 1A), for example, are combined to produce staircase waveforms which are then passed to external formant, control and output circuits.
Patent GB-1174727-A (GB)
Title: A Method of Fabricating a Memory Device
IPC: G11C17/00
Filed: 1968-07-17
Abstract: 1,174,727. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORP. 17 July, 1968 [17 Aug., 1967], No. 34106/68. Heading G4A. [Also in Division H1] A method of making a memory device comprises the steps of depositing a first plurality of substantially parallel metallic lines on a substrate, applying an insulating coating over the lines, removing portions of the coating at selected points over selected ones of the lines so as to define a pattern of stored information, and applying a second plurality of substantially parallel metallic lines over the coating, the second plurality of lines crossing the first and being connected to them at the points where the coating was removed. A matrix read-only data store having conductive connections between selected row and column lines is made by the following steps: (1) a one-micron metal layer (e.g. aluminium) is evaporated on to a quartz, silicon or ceramic substrate, then covered with a half-micron layer of (positive or negative) photoresist (insulator) using spinning to distribute the photoresist, (2) the photoresist is exposed photographically through a mask or using an electron beam instead of light, then developed, (3) etching using NaOH solution leaves parallel metallic column lines on the substrate, (4) a layer of positive photoresist is coated over the side of the substrate bearing the column lines including over the column lines, exposed at selected points over the column lines using light or an electron beam, developed and etched to have holes at the exposed points, (5) another metal layer is evaporated all over the last layer of photoresist, inter alia filling the holes left by the etching of that layer, (6) another coating of photoresist is applied, exposed through a mask, and etched to leave parallel metallic row lines perpendicular to the column lines and connected to them by metal at selected rowcolumn cross-overs. The connections between row and column lines may be of a different higher-resistivity metal (e.g. chromium) than the lines themselves. In this case, step (5) uses the higherresistivity metal and is followed by etching to remove all this metal except that in the holes, then another layer of the first metal is deposited, followed by step (6).
Patent GB-395708-A (GB)
Title: Improvements in or relating to die casting or moulding
IPC: B29D5/00
Filed: 1931-12-09
Abstract: 395,708. Moulding sliding-clasp fasteners. CORNER, G. H. C., 507, Walsall Road, Perry Barr, and LIGHTNING FASTENERS, Ltd., Kynoch Works, Witton, both in Birmingham. Dec. 9, 1931, No. 34200. [Class 87 (ii).] A succession of fastener members of wax, artificial resin, &c. is cast on to a tape projecting into a mould of which at least one member comprises a plurality of dies connected by a flexible member. The Figure shows a mould, for casting members 6 of a sliding-clasp fastener on a band 5 of fabric, which consists of three flexible members 2, 3, 4 fed, with the band 5, intermittently through a multipart tunnel 1. The feed is arrested and the parts clamped during the injection of the fluid or plastic material. The members 2, 3, 4 are separated along the lines 20, 30, 40 and may be continuous as at 30. The device may be used for covering a fastener with indiarubber.
Patent GB-387301-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C37/42
Filed: 1932-02-24
Abstract: 387,301. Fire-extinguishing. FOAMITE FIREFOAM, Ltd., 55, Great Marlborough Street, London.-(Assignees of Smith, C. F. ; Elmira, New York, U.S.A.) Feb. 24, 1932, No. 34223. Convention date, Feb. 28, 1931. Divided on 382,840. Drawings to Specification. [Class 47 (ii).] The fire-extinguishing apparatus is the same as that described in Specification 382,840. The means for weighing the containers without the necessity for disconnecting them from the delivery pipe is claimed generally in apparatus comprising a plurality of containers each connected by a flexible pipe to a common delivery conduit.
Patent GB-1166007-A (GB)
Title: Improvements relating to Hydraulically Operated Mine Roof Supports
Inventor: ELSE JOHN DEREK
IPC: E21D15/54
Filed: 1966-07-30
Abstract: 1,166,007. Bases for hydraulic pit props. FLETCHER & STEWART Ltd. 28 July, 1967 [30 July, 1966 <2>], Nos. 34313/66 and 34314/66. Heading E1E. An hydraulic mine roof support 12, Fig. 3, is mounted for rocking movement on a base 10, 11 and is provided with spring-biassing means 20 which is secured between a bush 15 and a plate 21 by a bolt 17 in order to compensate for vertical misalignment. In a modification, the coiled spring is disposed within a base which again may be somewhat modified to receive a series of disc-type springs, see Figs. 4 and 5 (not shown), respectively. The spring arrangement of Figs.. 1-5 may be replaced by a block of rubber:
Patent GB-295538-A (GB)
Title: Improved lock to be operated by means of a double key
IPC: E05B35/12
Filed: 1927-12-19
Abstract: 295,538. Peter, R. Dec. 19, 1927. Locks, controlling operation of.-A lock operated by a double key comprises a disc 24 having a lateral bolt extension 2 and rotatable by a key-operated clutch member 3 rotatable and slidable. within the casing 1. Normally, tappet projections 19 of member 3 are held out of engagement with tappet projections 26 of disc 24 by springs 10 and in this disengaged position member 3 is held against rotation by projections 22 thereon engaging corresponding recesses in the casing 1. Movement of member 3 into engagement with disc 24 is normally prevented by pins 5 (round which the springs 10 are disposed) carried by a rotatable plate 4. Member 3 has arcuate grooves terminating in longitudinal holes 20, and normally the free ends of the pins rest in the grooves, plate 4 being biassed to the requisite position by springs 8. The key is in two parts 11, 12 telescopically connected. Part 11 has a portion 30 adapted to engage a keyreceiving head 29 on member 3, and the end of part 12 is adapted to engage a key-receiving head 28 on plate 4. To operate the lock, plate 4 is first rotated by the part 12 to bring the pins 5 into register with the holes 20, so that member- 3 may be moved inwards by pressure on part 11, projections 19, 26 being thereby engaged so that subsequent rotation of member 3 by key part 30 rotates the disc 24 and bolt 2.
Patent GB-771135-A (GB)
Title: Improvements relating to supports for collapsible tubes
Inventor: RYRIE ANDREW
IPC: B65D77/04
Filed: 1954-11-26
Abstract: 771,135. Packaging. RECKITT & COLMAN, Ltd. Nov. 28, 1955 [Nov. 26, 1954], No. 34360/54. Class 94(1). A supporting surround for a collapsible tube comprises a strip of card 2 shaped as in Fig. 1 and applied to the tube 6 as in Fig. 2. The front and back of the tube 6 remains visible and a number of the tubes and their surrounds can be packed in ordinary boxes or cartons.
Patent GB-365699-A (GB)
Title: Improved means for producing arcuate indentations and projections on lid rims, or similar bodies, of sheet-metal
IPC: B21D5/08
Filed: 1930-11-15
Abstract: 365,699. Making hollow-ware. KLIKKBOX CO., Ltd., 125, Pall Mall, London. Nov. 15, 1930, No. 34467. Convention date, Sept. 18, 1930. [Classes 83 (ii) and 83 (iv).] Corrugating.-A machine for rolling arcuate projections or depressions on sheet-metal boxes or other bodies has a roller 7, on which the work fits without play, arranged on its shaft 13 with play but with rubber 17 or other means tending to maintain concentricity and dies 8a, 9a movable radially in the roller 7 and pressed on to the shaft 13 by springs 10. The roller 7 is connected to the shaft 13 by bolts 20 which clamp a ring 21 against a distance sleeve 22 so as to enclose a flange 18 of the shaft, the bolts passing through slots in the flange. When the roller 7 is concentric with its shaft the dies 8a, 9a are withdrawn so that they do not hinder the insertion or removal of the work but when a roller 23 with rigid formations 8b, 9b is moved into working position a flange 28 thereon pushes the roller 7 into an eccentric position so that the adjacent die 8a or 9a is advanced, relative to its roller 7, into working position. Corrugating, dies.-The face die 9a in which the depression is formed must extend so far to the right b, Fig. 7, that when withdrawn the face c of the roller 7 still more to the right will not prevent the withdrawal of the work by obstructing the formation produced by said die. Shearing.-The roller 7 may also carry a ring 38 which is then used, in co-operation with a circular cutter not shown to trim the work. This trimming falls into a groove 37 and is severed by the movement of a stripper 34.