baber/WOPTO huggingface dataset:
Patent GB-453716-A (GB)
Title: Improvements in and connected with clocks
IPC: G04B41/00
Filed: 1935-05-07
Abstract: 453,716. Clocks. SCHATZ ROMBACH, Ltd., 5, Glasshouse Yard, Aldersgate Street, London.-(Schatz, C. ; Villa Hilda, Triberg, Baden, Germany) May 7, 1935, No. 13478. [Class 139] To prevent displacement of the hammers and, or, gongs of the chiming mechanism; particularly during transport, means, independent of the chiming mechanism, are provided for locking the hammers and, or gongs in their normal position. As applied to a clock movement as described in Specification 421,434, the hammers 5, pivoted in a bracket 4, are locked against the tubular gongs 7 pivoted in a block 8, by rotating a plate 13 from the dotted position shown in Fig. 1 to the full-line position, where notches 12 in the plate engage the hammers. A similar plate 15 notched at 16 is rotated through a handle 18, about pivot 19 to the position shown in Fig. 1 to engage beneath the gongs 7. Locking screws 14, 19 may be provided to lock plates 13, 15, in their locking and off positions but friction is normally sufficient to hold the plates. The locking plates 13, 17 may be actuated, for example, through cranks and a connecting-rod by a common control member which may be coupled with the usual on-off control and/or, the selector for the different chimes. The locking plates may be notched along both edges for use with different types of chimes.
Patent GB-596336-A (GB)
Title: Improvements in or relating to clutches and brakes
IPC: F16D27/11
Filed: 1945-05-30
Abstract: 596,336. Electromagnetically - operated friction clutches. LEAR, Inc. May 30, 1945, No. 13522. Convention date, June 5, 1944. [Class 80(ii)] [Also in Group XXXIV] The driven member of an electromagnetically-engaged friction clutch extends radially outwards substantially farther than the driving member so as to approach closely a housing of magnetic material and form with it a low reluctance air gap for the magnetic flux generated by a winding supported within the housing. As shown, the clutch is incorporated in a drive from a reversible electric motor 10 to gearing 25 driving a flexible shaft 20, the magnetising winding 38 being connected in the motor circuit to operate therewith. The driving disc 23, secured on the motor shaft 11, is of smaller diameter than the centrally recessed slidable driven disc 26, whose periphery nearly touches the stationary housing 35. The latter encloses the winding 38 and supports it on a cylindrical portion 37 closely surrounding the hub 13 of the driving disc 23 to complete the magnetic flux path indicated by the arrows. On disengaging the clutch, the driven disc 26 is biassed by a spring 41 on the remote end of its shaft 27 to engage through concentric circular grooves 53 on its rear face a cork or other deformable braking surface 52 on the housing. In Fig. 2 (not shown) the discs are formed with conical clutching surfaces. Specifications 549,552 and 594,739 are referred to.
Patent GB-968805-A (GB)
Title: Benzene-sulphonyl semicarbazides
IPC: C07C311/54
Filed: 1963-04-05
Abstract: The invention comprises benzenesulphonyl semicarbazides of the formula: <FORM:0968805/C1/1> and salts thereof, wherein X is a halogen atom or an alkyl or alkoxy radical (e.g. methyl or methoxy) and R1 and R2 are alkyl, alkenyl, cycloalkyl or cycloalkyl-alkyl radicals or R1 and R2 together with the nitrogen atom form a heterocyclic ring containing 3-8 cyclic carbon atoms, optionally bearing alkyl substituents and optionally containing a further hetero atom (e.g. pyperidine and pyrrolidine); together with processes for their preparation by reacting a benzenesulphonyl compound of the formula: <FORM:0968805/C1/2> with a compound of the formula B-N(R1)R2 wherein W is an amino group or a group convertible to amine by reduction or hydrolysis, one of the residues A and B is an amino group and the other is an isocyanate group or a group which is converted to isocyanate under the reaction conditions, followed if necessary by conversion of W into an amino group.  The products are used pharmaceutically as oral anti-diabetic agents.
Patent GB-214110-A (GB)
Title: Support bracket for auxiliary brakes for "ford" motor gars
IPC: F16D65/10
Filed: 1923-05-24
Abstract: 214,110. Jackson, R. R. May 24, 1923. Brakes, arrangement and disposition of. - A support bracket for an external band brake for use as an auxiliary to the usual internal expanding brake on motor vehicles of the Ford type comprises a member 2 through which passes at its middle part the pivot bolt 13 of the shoes of the internal brake whilst one end is recessed to engage the boss 12 on the disc 3 of the axle casing and the other end engages the periphery of the disc itself. The member is further provided with a central part having a recess for one of the usual ribs 16 on the disc 3. The band 10 is supported bv spring-urged pins 9 passing through longitudinal slots in the member 2 and is anchored at its middle part by a pin passing through an eye in the extension 14. The tightening means for the band may comprise a two-armed lever connected to the ends of the band and situated at the front edge of the disc 3 near the existing control lever. The boss 12 is that provided for the perch 12* to which the bearing spring is connected.
Patent GB-406253-A (GB)
Title: Coin testing device for coin-freed vending machines
Filed: 1932-05-14
Abstract: 406,253. Coin -freed apparatus. WISTOFT, S., Frederiksberg, near Copenhagen. May 14, 1932, No. 13925. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 5, 1933]. [Class 27.] Testing coins.-A testing device to distinguish between coins of elastic metal and leaden discs comprises a shoot having a vertical part 1, Fig. 1, and an inclined portion 5. At the bottom of part 1 is a plate 3 from the inclined surface 4 of which proper coins rebound over a gap or opening 6 to continue their way down the shoot 5. Non-elastic discs roll down the surface 4 and through the opening 6. In the form shown in Fig. 2, coins pass down a vertical shoot 1, and an inclined shoot 21 to hit a vertical elastic wall 11. Proper coins rebound from the wall through an opening 13 while leaden and like discs drop straight downwards. In the modification shown in Fig. 3, proper coins after leaving the inclined shoot portion 21 rebound from an anvil 20 and continue their path through an opening 19. Non-elastic discs roll back through an opening 22, the anvil being oppositely inclined to the shoot 21.
Patent GB-1146501-A (GB)
Title: Method and apparatus for automatic electric corrosion proofing
IPC: C23F13/04
Filed: 1966-03-29
Abstract: 1,146,501. Automatic control of corrosion prevention. MITSUBISHI JUKOGYO K. K. March 29, 1966 [March 30, 1965; May 31, 1965], No.13931/66. Heading G3R. [Also in Division C7] A cathodic corrosion prevention system comprises (1) a regulatable D. C. voltage source, e.g. supplied through Si-controlled rectifiers 12 and a slide rheostat-type transformer 11 from an A.C. source, for connecting to a metallic structure 13 (e. g. of mild steel) to be corrosion proofed as the cathode and a non-consumable anode 14 (e. g. of Pt, Pt alloy, Fe 3 O 4 , Pb-Ag alloy or Pt-plated Ti plate), both being immersed in an electrolyte e. g. NaCl solution, (2) means for measuring the difference between the P. D. and the (solution) resistance voltage drop between the electrodes 13, 14, such as voltmeters V 1  and V 2  respectively, the latter (V 2 ) indicating the voltage generated by a proofing current circuit (comprising a potential circuit 17 supplied through a Si-controlled rectifier 16 from a transformer 15 operatively connected to the main voltage source) to compensate for the voltage drop, and (3) means operable responsive to the measured difference e.g. voltage setting means 18 to regulate the current flow from the anode to the structure so as to maintain the difference constant. In a modification Fig. 7 (not shown) the difference is maintained within a predetermined range corresponding to the proofing potential of the structure. A current flow at a first constant value is supplied in response to any drop of the P. D. below a first predetermined value, to be interrupted when the P.D. attains this value; and, in response to the P.D. increasing above the first and above a second higher predetermined value, a current flow at a reduced second constant value is supplied. The silicon controlled rectifiers may be replaced by saturable reactors, transistors or relays. The latter are also used in the abovementioned modification for switching the current between its two values, but may be replaced Fig.8 (not shown) by a photo-transistor controlled by a moving pointer and having an output which is amplified to control silicon controlled rectifiers in the main current circuit.
Patent GB-1173398-A (GB)
Title: Apparatus for Ultrasonic Echo-Encephalography
IPC: A61B8/00
Filed: 1968-03-22
Abstract: 1,173,398. Ultrasonic inspection devices. LKB MEDICAL AB. 22 March, 1968 [5 April, 1967], No. 14090/68. Heading H4D. An ultrasonic encephalographic system wherein two probes are positioned one on each side of the skull operates such that during a sequence of four consecutive time periods each probe acts as a receiver during one period at the beginning of which the probe has itself emitted an ultrasonic pulse, and also during one period at the beginning of which the other probe has emitted an ultrasonic pulse, received echo signals providing Y-deflection in a cathode-ray tube (C.R.T.) whose X-deflection waveform is a linear sweep which is positive-going in one period and negative-going in the next. In the Fig. 1 embodiment the four periods are established by an astable circuit V1 driving two bi-stable circuits V2, V3. Probes A and B are coupled to transmitter circuits SA, SB and via gates G2, G4 to receiving circuits MA, MB. Gates G2 to G5 are controlled by V2, V3 and a delay monostable circuit V4 such that (a) in the first period A acts as both transmitter and receiver to detect the brain midline by a pulseecho method; in the second period B acts similarly as transmitter and as receiver, in the third period A acts as transmitter and B as receiver to measure skull width by a throughtransmission method; in the fourth period B acts as transmitter and A as receiver to measure skull width, and (b) receiving circuits MA, MB are blanked during the acoustic pulse transmission and when echo pulses reflected several times within the skull arrive. Further gates G6 to G9 control amplifiers FA, FB feeding the two Y-deflection plates of C.R.T. K such that FA amplifies during the first period only and FB amplifies during the second period only (i.e. the through-transmission signals are not displayed). The X-deflection sweep generator SG is controlled by V1 to synchronize the sweep with the acoustic transmission and to reverse the sweep direction every period. A feedback system including zero-crossing detector FO, gates G10 and G11 and bi-stable circuits V5, V6, automatically adjusts the sweep time to be twice the through-transmission time measured in the third and fourth periods, whereby the centre of the sweep will correspond to the centre of the skull. The midline echoes will thus be displayed as two pips one above the other, of opposite polarity, and displaced from the sweep centre according to any displacement of the midline in the skull. To measure this displacement, a bright-up marker which can be moved along the sweep by means of a calibrated control MM is provided by intensity-control circuit LP comprising differentiating circuits DF1, DF2, DF3 (for detecting zero-crossings of the output of FO) and variable delay circuits T2, T3. LP also provides beam blanking in the third and fourth periods and a fixed bright-up marker at the sweep centre in the first and second periods.
Patent GB-271893-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M9/127
Filed: 1927-05-26
Abstract: 271,893. Ken-Crip Corporation, (Assignees of Kennedy, G. L.). May 26, 1926, [Convention date]. Spray carburettors. - A floatless spray carburettor comprises a hand-actuated, axiallymoving, combined air and fuel valve 7 having orifices 8 which regulate the air supply by association with orifices 9 in the carburettor casing and an orifice 11 which regulates the fuel supply by assocation with a fixed needle 14, the arrangement being such that the ratio of fuel to air is constant. The, valve is lifted bv a rack and pinion. A union 16 is connected to the fuel supply pipe and a spring-pressed valve 28 may be opened to admit fuel by a passages 32 at starting. The needle 14 may be replaced by a tapering slot in an extension of a, part 10 which regulates the fuel supply by association with an orifice 19. The part 10 may screw into the bass of the valve 7, so that relative adjustment between the slot and the orifice 19 is provided for. A block of fibrous or porous material, e.g. balsa wood, may be fitted inside the cup of the valve 7; this block has a concave base to form a dome-shaped chamber over the orifice 11 and is set back from the orifice 8 and its upper part. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a further modification. as shown in Fig. 8 (Cancelled), in which the valve 7 carries an inverted cup member 40 having a fuel nozzle, 42. A pair of thin resilient flaps 44 are mounted as shown and the orifices 8 are replaced by orifices 50 in two sector-shaped packing pieces which form a parallel-walled chamber for the flaps 44 to move across under great suction by the engine. The needle 14 is mounted in a screwed sleeve 51 which has a radial arm for angular adjustment. This subject-matter does not appear in the Specification as accepted.
Patent GB-1168567-A (GB)
Title: Improvements in or relating to Electric Switches
Inventor: GOSSLING CLEMENT ELPHICK
IPC: H01H23/16
Filed: 1967-03-29
Abstract: 1,168,567. Snap-action switches. HONEYWELL Ltd. 21 Dec., 1967 [29 March, 1967], No. 14205/67. Heading H1N. A three-position switch comprises a pair of conductive levers 9, 10 pivoted at 11, 12 and permanently in contact with a fixed terminal 5, the levers having contacts 14, 15 movable into and out of contact with respective fixed contacts 7, 8 on pivoting of the levers 9, 10 by means of a spring biased roller 18 carried by an operating lever 16 pivoted at 17 on the switch casing 1. The contacts 8, 15 of the lever not engaged by the roller 18 are biased open by springs, or roller 18 may engage an extension (10c) of the non-operated lever to hold said contacts open (see Figs. 4, 5). Forked arm 9b of lever 9 straddles the arm 10a of lever 10 so as to provide a mechanical bearing surface for roller 18 and a central "off" position (Fig. 2). If roller 18 is biased towards levers 9, 10 by a spring in the lever 16, should contacts 7, 14 weld, when roller 18 reaches position 18c and lever 9 does not pivot, the curved end of arm 9b causes boss 20 to abut against a stop 19, and further movement of lever 16 breaks the weld and opens contacts 7, 14. Alternatively, roller 18 may be biased towards levers 9, 10 by a spring-loaded horizontal plate in contact with the top of roller 18 and provided with a slot to accommodate the full range of movement of lever 16. Movement of collar 18 against its bias is limited by abutments above the plate.
Patent GB-125651-A (GB)
Title: An Automatic Fuze Setter.
Inventor: ROTTENBURG LOUIS
IPC: F42C17/00
Filed: 1916-10-07
Abstract: 125,651. Rottenburg, L. Oct. 7, 1916. Ordnance fuse-setting devices combined with parts of guns.-Relates to apparatus of the kind in which the time rings of projectile fuses are set by means of two pawl carriers R<3>, L<3>, Fig. 6, which are rotated in opposite directions by a stem S<1> formed with right and left-handed spiral grooves. According to the invention, the setting is determined by pushing the projectile into the bell mouth B<3> of the apparatus and limiting the backward movement of the stem or fixing the stem and tripping the pa.wl R<4> of the carrier R<3> by means of a cam C<1>, Fig. 1. which its adjusted vertically or obliquely according to the elevation of the gun, for example by a Bowden wire B<8>, Fig 10, connected to a crank B<6> on the gun trunnion, and is adjusted laterally according to the height of the target or the error of the day. The cam trips the pawl through the intermediary of a longitudinal rod S<15> and a spring-controlled arm R<11> hinged to the spindle R<9> of the pawl.
Patent GB-424458-A (GB)
Title: Improvements in or relating to bed plate and like shock absorbers, resilient shaft couplings, and like mechanical cushioning elements
IPC: F16F1/38
Filed: 1934-05-11
Abstract: 424,458. Universal joints. SOC. ITALIANA PIRELLI, 21, Via Fabio Filzi, Milan, Italy. May 11, 1934, No. 14286. Convention date, May 11, 1933. [Class 80 (ii)] [See also Groups XXXII and XXV] A resilient coupling for coaxial shafts 11, 12 comprises a resilient intermediary of rubber permanently bonded between an outer ebonite sleeve 15 and two ebonite sleeves 13, 14, which are rigidly secured to the ends of the shafts. Each end of each shaft may be grooved, cleaned, e.g. by sand-blasting, and coated with rubber solution on which when dry is laid a strip 13, 14 of ebonite-forming rubber composition. These strips are then surrounded by a strip of soft-rubber composition 16 and this intermediate strip is enclosed by another strip 15 of ebonite-forming composition. The whole is then vulcanized in a mould. The central space 17 may be left empty or filled with resilient rubber, &c. The elements of the unit may be formed separately in their final state and united by vulcanization with the aid of rubber solution &c., or may be assembled in unvulcanized or partly vulcanized condition and then completely vulcanized or the eboniterubber layers may be in semi-vulcanized condition when assembled with the resilient rubber layer in crude condition and the unit then completely vulcanized. Layers of resilient rubber of varying degrees of hardness and elasticity may alternate with ebonite layers.
Patent GB-1461329-A (GB)
Title: Motor vehicle cluth discs
IPC: F16F15/129
Filed: 1974-04-01
Abstract: 1461329 Resilient couplings DAIMLERBENZ AG 1 April 1974 [14 April 1973] 14322/74 Heading F2U A clutch disc comprises a plate 10 supporting the friction linings, a side plate 12 rigidly connected to the plate 10, and springs 13 in apertures of a hub flange 14 and apertures of plates 10 and 12, different springs, or sets of springs 13 having different stiffness characteristics, the apertures in flange 14 being urged differently to obtain a stepped torsional resilience of the clutch plate 10 on the hub 11, a first frictional coupling 17 between the hub flange 14 and a control plate 19 having limited free play on the hub acting during the rotational movement allowed by the lowest rate spring 13a to dampen the movement and a second frictional coupling 18 acting during the rest of the rotary movement, allowed by springs 13b, 13c and 13d in turn.
Patent GB-478934-A (GB)
Title: Improvements in and relating to colour forming developers and processes of colour development
IPC: G03C7/32
Filed: 1936-04-23
Abstract: Ethyl b -(1-benzthiazolylhydrazone)-butyrate is prepared by the reaction of 1-benzthiazolylhydrazine and ethyl acetoacetate in acetic acid solution.  Dihydro-2-hydroxyquinoxaline is prepared by reacting o-phenylenediamine, chloracetic acid and zinc dust, heating on a steam bath for 1 hour after the reaction has subsided and extracting with boiling water.
Patent GB-1452875-A (GB)
Title: Method for manufacturing cyanorbornene
IPC: C07C255/45
Filed: 1975-04-08
Abstract: 1452875 Cyanonorbornene SHOWA DENKO KK 8 April 1975 [9 April 1974] 14421/75 Heading C2C Cyanonorbornene is prepared by reacting acrylonitrile at 0 to 150 C. with the C 5  fraction resulting from the cracking of a petroleum fraction, said C 5  fraction boiling over a range of from 15 to 55 C. and containing at least 5% by weight of cyclopentadiene, the molar ratio of the acrylonitrile to the cyclopentadiene being from 0À3 : 1 to 3 : 1.
Patent GB-1209462-A (GB)
Title: An expanded magnesia cement
Inventor: EDWARDS JOHN LEE
IPC: C04B24/42
Filed: 1967-03-30
Abstract: 1,209,462. Expanded magnesia cement. B.P. CHEMICALS (U.K.) Ltd. 22 Feb., 1968 [30 March, 1967], No. 14449/67. Headings C3C and C3N.  Expanded magnesia cement is made by mixing magnesium oxide, magnesium chloride and water in the presence of a surface active agent and a water-soluble silicone and entraining a gas e.g. air, into the mixture to form a flowable foam which is allowed to set. The surface active agent may be dodecyl benzene sodium sulphonate, a sodium alkylnaphthalene sulphonate or a nonylphenol/ethylene oxide condensate. The silicone may be an ethylene glycol/siloxane block polymer. A thickening agent, e.g. sodium alginate or methyl cellulose, may be present to facilitate air entrainment. The cement may also contain a filler e.g. asbestos, perlite, vermiculite, pulverized fuel ash, silica or glass fibre. The filler may be present in an amount from 1-15% by weight of the cement.
Patent GB-592914-A (GB)
Title: Improvements in or connected with hydraulic testing machines
IPC: G01N3/10
Filed: 1945-07-08
Abstract: 592,914. Testing physical qualities of materials. AVERY, Ltd., W. &'T., and HINDE, P. B. July 8,1945, No. 14475. [Class 106 (ii)] A hydraulic testing machine has a straining cross-head a resiliently mounted (by means of flexure plates b) on a traversable base c. which is supported on parallel rail tracks d and g by means incorporating a plurality of continuous roller chains el, e<2> arranged in two perpendicular sets of planes. As shown, four vertically disposed chains engage the flanges of two side rails d and two horizontal chains'engage the flanges of a centre rail g, all of the chains being disposed around blocks c<1> secured to the traversable base. The rails are secured to a. girder structure forming part of the bed of the machine.
Patent GB-143923-A (GB)
Title: Improvements in clasps for bracelets
IPC: A44C5/24
Filed: 1920-05-28
Abstract: 143,923. Cornu et Cie. May 28, 1919, [Convention date]. Bracelets; watch bracelets.-A bracelet is provided with an extensible link comprising three members, the outer ends of the members b, c being pivoted to the ends of the bracelet, and the intermediate link a being formed with semicylindrical pivots a<1>, a<2> with which engage hooked springs b<1>, c<1> riveted to the members b, c respectively. The nature of this joint provides an elastic resistance to the extension of the link, owing to the cylindrical part of the pivots a<1>, a<2> pressing back the springs b<1>, c<1>, Fig. 4, during the operation of opening. When closed, the ends of the spring hooks take into recesses b<3>, c<3> in the members b, c. When the device is applied to a watch bracelet, the inner end of the member b is enlarged to fit the loop on the watch. In a modification, the member a is replaced by a pair of parallel links a, Fig. 7, having longitudinal grooves a<4>, and the members b, c pivoted to the link at a<1>, a<2>, fold between the links a and engage in the grooves with a snap action provided by helical springs threaded on the pivots a<1>, a<2>.
Patent GB-664101-A (GB)
Title: Improvements in and relating to lifting mechanism for ploughs, harrows and the like agricultural implements
IPC: A01B63/26
Filed: 1949-06-01
Abstract: 664,101. Agricultural implements. BRADFORD, R. June 1, 1949, No. 14755/49. Class 6(i) An implement comprises a toolframe 16 suspended from a main frame 1 by parallel links 20, 21, both frames being coupled by further links 32, 35, to a limber which comprises land wheels 3 and a draw-bar 7 carrying a hand-lever 26, connected to the main frame by a bell-crank 31 and a link 31a. Operation of the lever causes the main and tool-frames to move longitudinally in opposite directions and raises or lowers the toolframe on its links 20, 21. The main frame is supported by a rear castorwheel 4. The link 32 is secured rigidly to the land-wheel axle 5, the wheels 3 being free thereon. A short arm 34, also rigid with the axle, is pivoted to the link 35. A seat 10 on the limber carries an operator and a clevis 9 permits the draw-bar to be coupled to a tractor. Fig. 2 shows the raised, and Fig. 3 the lowered position of the tools 19.