baber/WOPTO huggingface dataset:
Patent GB-366548-A (GB)
Title: Improvements in or relating to centerless grinders
IPC: B24B49/18
Filed: 1930-09-24
Abstract: 366,548. Centreless grinding. CINCINNATI GRINDERS, Inc., 3058, South Street, Cincinnati, Ohio, U.S.A.-(Assignees of Harrison, R. E. W.; 5860, Wayside Avenue, and Hopkins, C. W. ; 4339, Rose Hill Lane, both in Cincinnati, Ohio. U.S.A.) Sept. 24, 1930, No. 28599. Convention date, Sept. 27, 1929. Addition to 366,005. [Class 60.] Gauges; guides and rests.-In a centreless grinding-machine of the "infeed" type, means are provided for gauging the work-pieces whilst they are in the grinding throat, and in cases where the work is over size, for actuating means to give additional infeed to the regulating- wheel. The machine comprises a bed 15 upon which are mounted a grinding-wheel 16 and a slide 17 carrying a work-rest bracket 18 and a second slide 19 supporting a regulating-wheel 21 ; the slides may be clamped together by a clamp 30. In order to advance the regulating- wheel to position it relatively to the work, a nut 23 is mounted rotatably in the slide 19 to engage a screw 24 rotatable by a hand-wheel 29 and mounted rotatably in a block 25 slidable in a housing 27 supported by the bed. The block is movable to feed the regulating-wheel, to grind the work to size, by a bell-crank lever 32 moved by a cam 35 driven by a motor 37; a fine adjustment of the regulating-wheel is brought about by worm-gearing 38 on the nut 23 operated by a hand-wheel 43 on a spindle 40. The spindle 40 also carries a ratchet wheel 44 operated by a pawl 45 carried by a gear 46, which is moved by rack teeth on a piston 52 in a fluid pressure cylinder 53 and movable under the control of a valve 57 operated in one direction by a solenoid 58, and in the other direction by a spring 59. The work is supported by a rest 22 on the bracket 18, and secured to the bracket 18 is a housing 62 having pivoted therein a lever 63 with a feeler 64 bevelled at 65 and pressed by a spring 66 to engage the work ; the lever carries an electrical contact 68 adapted to engage a contact 70 in the circuit of the solenoid 58. The cam 35 also is adapted to actuate a circuit-breaker 75 in the same circuit when the regulating-wheel is being given a dwell by the cam for finish grinding. If the work is to size, the feeler 64 falls sufficiently to open the contacts 68, 70, so that the solenoid is not energized ; if, however, the work is over size owing to wear of the wheels, the solenoid is energized and actuates the valve 57 to cause the piston 52 to give an additional feed to the regulating-wheel. The stroke of the piston is adjusted by screws 60 ; the pawl 45 is lifted, on the reverse stroke of the piston, by a screw 49 which engages a bevel 50 on the pawl.
Patent GB-241504-A (GB)
Title: Improvements in or relating to means for connecting electric cables to carbon brushes or the like
IPC: H01R43/12
Filed: 1924-11-29
Abstract: 241,504. Soc. Anon. le Carbone. Oct. 18, 1924, [Convention date]. Couplings.-An electric cable f is connected to a carbon brush a by means of a tubular rivet h and a metal washer i which is shaped as shown and has a projecting cylindrical portion k. The strands of the cable are placed round both sides of the rivet h and a tool is then employed to expand the rivet and at the same time exert pressure on the washer i.
Patent GB-465770-A (GB)
Title: Improvements in connection with the supply of water in percussive rock drilling machines
IPC: E21B21/01
Filed: 1936-10-22
Abstract: 465,770. Percussive drills. POTTER, H. S. Oct. 22, 1936, No. 28739. Convention date, Dec. 14, 1935. [Class 124] The front head of a percussive drill has a water box 14 inserted in it so as to be capable of slight axial movement. Water enters from a spigot 18 carried on a radial arm 15 and passes through holes 28 in the drill steel, the end of the axial bore of which is plugged by a plug 27. Leakage is prevented by packings 22 which are kept apart by a perforated stainless steel ring 24. The drill steel is supported by collars 8, 11 and 12, the latter being lubricated by wicks 40 from a lubricant reservoir 39. The plain collar 12 may be substituted by roller bearings.
Patent GB-412083-A (GB)
Title: Improvements in or relating to bottle holders for serving and distributing beverages
IPC: B67D3/00
Filed: 1933-10-17
Abstract: 412,083. Bottle-holders. PICARD, J. R., 3, Rue de la Republique, Marseilles, France. Oct. 17, 1933, No. 28757. Convention date, Oct. 21, 1932. [Class 116.] A bottle stand for a bar or like counter has a supporting member for the bottle, which is rotatable about discs carried by feet fixed to the counter, and which is automatically held on the discs in the positions for placing the bottles in position in the supporting member and for reversing the bottles for the dispensing operation. The bottles 24 are held in clamping members 23 secured to shafts 13, 14, 15 mounted in bosses 12 of two plates secured to members 11 which rotate on conical surfaces 10 formed on discs 9 integral with sleeves 8 mounted on tubular pillars 1 secured by base members 3 to the table or counter 4. Each sleeve 8 is adjustably mounted relative to the top of the counter 4 by a spindle 6 which engages a nut 5 screwed into the top end of the tubular pillar 1. When the bottles have been clamped in the holders 23 and the measuring devices 22 adjusted, the supporting member and the bottles are reversed for dispensing by actuating a lever which rotates a shaft 16 mounted in the bosses 12. Levers 27 mounted on the shaft 16 engage the heads 29 of spring pressed locking rods 19 and on the withdrawal of the ends of these rods from recesses 20 in the fixed sleeve 9, the supporting frame can be rotated by the handles 25, 26 to the opposite position in which the ends of the rods 19 snap into diametrically opposed recesses 20 to retain the bottles in the position for drawing off liquid.
Patent GB-228290-A (GB)
Title: Improvements in card-board and the like display boxes
IPC: B65D5/42
Filed: 1923-11-16
Abstract: 228,290. Barker & Dobson, Ltd., and Town, W. R. Nov. 16, 1923. Contents, viewing lids.-A display box is provided with an auxiliary detachable transparent lid C having flanges b<2> on three sides which fit the inside of the walls of the box and on the other side a hinge flap b<3> which is held against the inside of the rear wall either by the contents or by cardboard' strips which are secured to the side walls. In a modification the transparent cover is hinged about a side adjacent that which bears the main lid a<1>. The main lid a<1> may be supported in the open position by a metal arm a<3> which is pivoted about an eyelet a<4> in the lid and engages with the rear wall. As described in the Provisonal Specification the flanges b<2> may fit either within or on the outside of the walls of the box.
Patent GB-1511363-A (GB)
Title: Ultrasonic transmitter with electrostatic ultrasonic transducer
IPC: H03J9/04
Filed: 1975-07-09
Abstract: 1511363 Remote control of radio and T.V. receivers; semiconductor pulse generators INTERNATIONAL STANDARD ELECTRIC CORP 9 July 1975 [16 July 1974] 28902/75 Addition to 1472451 Headings H3Q and H3T [Also in Division G4] In an ultrasonic transmitter having a source of DC voltage in series with an impedance to provide a polarizing DC voltage at the capacitance of an ultrasonic transducer W and a controlled electronic switch T1 connected in parallel with the transducer, a variable pulse repetition frequency square wave generator OSZ controls the electronic switch via a pulse modifying circuit IF so as to derive a short-circuiting control pulse of constant duration for the electronic switch at any of the selectable frequencies. As shown the transducer has a D.C. polarizing voltage supplied by L1 and D 1. The pulse modifying circuit can be a monostable circuit or in Fig. 2a a differentiating circuit producing a waveform (Fig. 2b, not shown) from the pulse output of the oscillator and a resistor R2 and a zener diode D3 which clamp the positive phase of the oscillator output pulse (A) to level (B, Fig. 2c, not shown) so as to supply a closing pulse (A') of constant duration to the electronic switch at all repetition frequencies of the oscillator. The oscillator can be switched to different frequencies as by a switchable divider. The unwanted negative components of the pulses from the oscillator are clamped to a level (C) by the zener diode D3 and a diode D2. The desired pulse shape can also be derived directly from a divider circuit and if required with additional AND or NOT AND circuits. The electronic switch T1 can be a transistor, thyristor or ovonic type. The transmitter arrangement is applicable to the arrangements described in Specification No. 1,472,451 in which an oscillator is switched to different frequencies by a touch responsive circuit and the arrangement described in Specification No. 1,485,839 in which there is provided an energy recuperation circuit.
Patent GB-539105-A (GB)
Title: Improvements in carrier frequency relay communication systems
IPC: H03J7/04
Filed: 1939-10-28
Abstract: 539,105. Wireless and wired-wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 28, 1939, No. 28919. Convention date, Oct. 29, 1938. [Class 40 (v)] [Also in Groups XXXV and XXXVI] A relay station for a frequency modulated carrier comprising an amplifier oscillating at the frequency of the incoming signals, is provided with means for deriving the modulating frequencies and for modulating the carrier by a local modulating frequency. The relay station may be part of a wireless or wiredwireless chain. At each relay station three stages of amplification 10, Fig. 4 are used of which the second is shown in full. The primary coil of an input transformer feeds two tuned secondaries 12 coupled to push-pull oscillating valves 11. One circuit 12 is flatly tuned slightly, above and the other below the mean frequency of the input. The frequency modulated output is passed through a transformer 14 to the next stage. Feed back from the output circuit to the input circuit, indicated by dotted lines b, causes oscillation of the amplifier, the frequency being controlled by the incoming signals. The variations in anode current fed to the valves 11 represent modulation frequency and this is made use of for modulating or demodulating at the relay station. The anodes of the valves 11 are connected through the transformer 14 to a centre-tapped primary winding of a transformer 15, the anode current being supplied to the centre connection. The secondary of the transformer 15 is connected to windings 17 of a further transformer 16. A modulation output amplifier 19 is connected to centre tappings of the two windings 17. Modulation input, after passing through an amplifying stage 21 is supplied to a further winding 20 of the transformer 16. A balancing network 18 is connected to the winding 17. In a modified arrangement the input and output circuits of an oscillating amplifier and two-way repeater c, Fig. 5, are coupled to a bi-directional antenna system 9 and balancing network 23 through a balancing transformer 22. Specification 533,147 is referred to. The Specification as open to inspection under Sect. 91 describes (1) modified arrangements of the antenna system and (2) means for automatically keeping several oscillators @ed at different relay stations in synchronism. For the latter purpose, the push-pull oscillator 50, 52 tunable by motor 63 is coupled by a loop 71 to the transmission line leading to the antenna system and to concentric conductor lines 59, 60 (one above and the other below a quarter wave-length) associated through elements 73 with the grid circuits of valves 61, 62, the anode circuits of which cause relay 64 to energize the reversible motor 63 to retune the oscillator 50, 52. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1431067-A (GB)
Title: Apparatus for measuring a property of movement
IPC: G01D5/38
Filed: 1973-06-19
Abstract: 1431067 Monitoring movement using blazed diffraction gratings ERNST LEITZ GmbH 19 June 1973 [20 June 1972] 28980/73 Heading G1A In an apparatus (an incremental transducer), Fig. 1, for monitoring movement of a blazed diffraction grating 1 relative to an incident light beam the two preferentially diffracted light beams (corresponding to diffraction orders  m) are directed on to one another with the aid of a mirror 4 and a semi transparent mirror 5, so that they interfere with each other and the resulting interference pattern is received by a detector 8 which can sense or measure movement by the variations in the brightness of the interference pattern. Several types of blazed diffraction grating are disclosed including a two dimensional grating consisting of pyramid elements or two similar gratings parallel to one another but having different preferred diffraction orders, or a diffraction grating, Fig. 2c, consisting of a number of parts 9' 9'', 9''',10' arranged as shown.
Patent GB-1182776-A (GB)
Title: Additives for Lubricating Compositions
Inventor: ELLIOTT JOHN SCOTCHFORD
IPC: C08F8/36
Filed: 1966-06-28
Abstract: 1,182,776. Polyolefin derivatives. CASTROL Ltd. 22 June, 1967 [28 June, 1966], No. 29050/66. Addition to 1,121,641. Heading C3P. [Also in Division C5] Oil-soluble polymer derivatives having a long saturated or unsaturated aliphatic chain linked through an amide or imide group to a group of formula -R 2 B(Q) 3 where B is a straight or branched group of alternating NH and R 2  groups containing 1 to 20 nitrogen atoms, Q is H or S0 3 H, the ratio of nitrogen atoms to SO 3 H groups being not less than 1 to 1, and R 2  is a group of formula -CR 2 CR 2 -, where R is hydrogen or an alkyl, aryl, aralkyl, alkaryl or alicyclic group, may be prepared by the corresponding long chain carboxylic acid with a sulphonic acid or internal salt prepared by polymerizing an aziridine compound in the presence of sulphurous acid. The acid may be prepared by reacting a polyolefin, preferably polyisobutylene of molecular weight 700 to 3000, with maleic anhydride, or by condensing a chlorinated polyolefin with acrylic or methacrylic acid. The aziridine compound may be ethylene, propylene, C - ethyl ethylene, C- hexadecyl ethylene, 2,3 - diethyl ethylene or 2,3-diethyl propylene imine. The products are useful as dispersant additives in lubricating oils. Examples describe (I) the reaction of poly-isobutylene with maleic anhydride, the polymerization of propylene imine in the presence of sulphurous acid and the reaction of the products; reaction products of polyisobutenylene succinic anhydrides with (II-V, VII and IX polypropylene imine sulphonic acids and (VI, VIII and X) polyethylene imine sulphonic acids; and the reaction of chlorinated polyisobutylene with acrylic acid and of the resulting polyisobutenyl propionic acid with (XI) a polypropylene imine sulphonic acid.
Patent GB-486394-A (GB)
Title: High pressure metallic vapour electric discharge lamp
IPC: H01J61/86
Filed: 1937-10-26
Abstract: 486,394. Discharge lamps. VEREINIGTE GLUHLAMPEN UND ELEKTRICITATS AKT.-GES. Oct. 26, 1937, No. 29223. Convention date, Oct. 26, 1936. [Class 39 (i)] In a high-pressure metallic vapour lamp, the bulb has its greatest internal dimension less than 20 mms. and its smallest dimension greater than the distance between the electrodes, and at least one electrode has two parts, one of which is activated and is heated by the other part which is not activated but is heated by thermal conduction or radiation from the discharge. In the form shown, the spherical refractory glass bulb 1 has a diameter of 5-6 mms. and contains two electrodes spaced 2 mms. apart and each consisting of an activated tungsten rod 4 surrounded by a helix 3. The filling is a rare gas at 25 mms. pressure and mercury and the lamp dissipates 10 watts on 110 volts supply with an efficiency of 35-40 lumens / watt. In other forms of electrode, the activating material may be coated at the bottom of a metal cap, or on a rod surrounded by a metal cylinder or by a helix 11, Fig. 4, wound on a second coil 12 directly surrounding the rod 10.
Patent GB-1385429-A (GB)
Title: Vulcanisable mixtures
IPC: C08L21/00
Filed: 1972-06-22
Abstract: 1385429 Vulcanizable elastomer mixtures CHEMISCHE WERKE HULS AG 22 June 1972 [24 June 1971] 29241/72 Headings C3P and C3Q Vulcanizable mixtures comprise (1) an elastomer and (2) 2 to 20% by weight of the elastomer of polyoctenamer and/or polydodecenamer in which the proportion of double bonds in the transconfiguration is greater than 60%. Preferred polyalkenamers have a reduced specific viscosity of 0À2 to 3À0 dl./g. in decalin at 135‹ C. and a trans content of 75 to 95%. The elastomer may be natural rubber, polyisoprene, a butadiene polymer or copolymer, e.g. with styrene or acrylonitrile, polychloroprene, or an olefin copolymer or olefin/diene terpolymer rubber. In examples polyoctenamer and polydodecenamer are compounded with natural rubber, polyisoprene, SBR or polybutadiene in the presence of carbon black, aromatic plasticizer oil, zinc oxide, stearic acid and vulcanizing ingredients, and the compositions vulcanized.
Patent GB-469602-A (GB)
Title: Production of metallic magnesium
IPC: C22B26/22
Filed: 1935-10-23
Abstract: Before the vaporous and gaseous products are cooled and diluted in the manner specified in the parent Specification, they are cooled to a temperature which is such as to produce a mixture of magnesium, magnesium oxide, and carbon, and after the cooling and dilution the resulting dust is compacted and the magnesium distilled therefrom in an electric resistance furnace.  The proportion of magnesium to the other constituents depends upon the exact temperature to which the products are cooled.  The mixture is then compacted with hydrocarbon oils, and brought into the form of porous granules by heating to temperatures at which the oils are cracked.  The granules are heated by direct resistance heating and the magnesium condensed.  In an example, cooling from 1900 DEG  C. to 1780 DEG  C., which may be effected by adjustment of the furnace temperature or by allowing the temperature of the gaseous products to fall gradually, produces an equimolecular mixture of magnesium and carbon and magnesium oxide.
Patent GB-280219-A (GB)
Title: Production of manure from spent molasses waste
IPC: C05D3/02
Filed: 1927-11-03
Abstract: 280,219. Bauer, E. and Szold, L., (trading as Eisler & Szold). Nov. 5, 1926, [Convention date]. Manures.-A manure is made by mixing spent molasses waste, concentrated, but not beyond 35‹ BÚ, and cooled to 60‹ C, with the lime sludge obtained in refining sugar or with lime saturated with carbon dioxide from any other source, the mixture being dried at a temperature of 100‹ to 105‹ C.
Patent GB-909547-A (GB)
IPC: F25D31/00
Filed: 1960-08-26
Abstract: Salts or mixtures thereof which absorb heat on dissolving in water comprise: ammonium nitrate and ammonium chloride; potassium nitrate, sodium nitrate and ammonium nitrate; potassium nitrate and ammonium chloride; potassium sulphocyanate; calcium chloride; and ammonium nitrate (preferably 35 parts by weight to 50 parts of water); ammonium chloride (preferably 15 parts), potassium nitrate (prefeably 10 parts) and sodium sulphate (preferably 25 parts). In the latter mixture, the sodium sulphate may be mixed with from 4 to 5% starch to prevent agglomeration.
Patent GB-1409963-A (GB)
Title: Methods of measuring parameters of complex electric circuit  components and devices for effecting same
IPC: G01R27/02
Filed: 1973-06-21
Abstract: 1409963 Measuring capacitance inductance and resistance PENZENSKY POLITEKHNICHESKY INSTITUT 21 June 1973 29575/73 Heading G1U Either the resistance 28, Fig.1, and inductance 27 of a parallel connected pair of components, or the resistance (37), Fig.3, and the capacitance (38) of a parallel connected pair of components, are measured by applying a particular sequency of voltages to the combination and comparing the resulting current with that through a reference component. For the LR combination 27, 28 Fig.1, a reference inductance L o , 24 is provided and the net current flowing through all three components is converted to a corresponding voltage U 3 , Fig.3c, by a high gain amplifier 25, 26. In operation two counters 34, 35 are initially set to zero, a reference voltage -E o , Fig.3a, is applied from a source 36 via a gate 2 to the components under test, and a reference voltage +E o , Fig.3(b), is applied to the reference inductance L o  from a source 12 via a gate 5. Assuming that L o  is smaller than L, this causes a linearly rising current to be applied to the input of the amplifier 25 and hence a linearly falling output voltage U3 to be produced. When this voltage passes through zero, a single shot monostable 19 of duration T o  is turned on, and a gate 32 is opened so that counter 34 can start to count clockpulses from a source 31. At the end of the single shot pulse of duration T o , the reference voltage +E o  is removed from the reference inductance L o  and replaced by earth. This causes the output voltage U3 from the amplifier to rise, and when it again reaches zero gate 32 is closed, a gate 33 is opened, and the reference voltage -E o  is removed from the components under test and applied to the reference inductance L o . This causes an abrupt drop in the amplifier output voltage U3 after which it again rises, and finally when it again reaches zero the gate 33 is closed. Thus, at the end of sequence two numbers ti and t2 are registered in counters 34 and 35 respectively, and it can be shown that:- and A similar sequence of voltages is applied to the unknown RC combination, Fig.3, and to a reference resistor (39).
Patent GB-445707-A (GB)
Title: Improvements in or relating to miniature upright pianos
IPC: G10C1/00
Filed: 1934-10-16
Abstract: 445,707. Pianofortes. EAVESTAFF & SONS, Ltd., W. G., and DOWNING, G. H., Ashfield Road, Finsbury Park, London. Oct. 16, 1934, No. 29590. [Class 88 (ii)] In a miniature upright pianoforte, i.e. with the action 17, 19 below the keyboard 14, the action carried by the standards 2 together with the keyboard may be swung on pivots 4 away from the frame 7 to facilitate access to the strings. The top of the piano case and the back are removable to permit this. In normal position the keybed is secured by screws 12, 12a to the top edge of the wrestplank 13 and a rail 21 respectively. In a modification, the action is arranged in front of the frame, and with the keyboard swings forwardly. Specification 377,641 is referred to.