baber/WOPTO huggingface dataset:
Patent GB-225006-A (GB)
Title: Improvements in or relating to power driven saws
IPC: B27B11/00
Filed: 1923-09-26
Abstract: 225,006. Drummond, A. Sept. 26, 1923. Reciprocating-saw machines.-A reciprocating- saw such as a log-cutting saw is driven through mechanism by means of which the stroke can be varied during the sawing operation. For this purpose the saw is driven by a lever F pivoted at f and connected by a link J with a block k mounted on an arm K which rocks about a pivot k<1> and is constantly oscillated by the driving motor (not shown) through a belt d, crank-disc L and connecting-rod l. The block k slides along the arm K and is adjusted thereon by a hand lever M to alter the stroke from the maximum, in the position shown, to zero or a predetermined minimum. The saw frame mav be of tubular construction, as described in Specification 199,303.
Patent GB-317372-A (GB)
Title: Improvements in controlling coal-dust furnaces
IPC: F23K3/00
Filed: 1929-08-07
Abstract: 317,372. Roosen, R., (Assignee of Hayn, G.). Aug. 14, 1928, [Convention date]. Fuel and air supply, regulating.-A device for controlling the fuel and air supply to coal dust burning furnaces comprises means for interlocking the starting and stopping devices for the fuel and air so as to prevent the supply of coal dust until the air supply is started and to prevent stopping of the air supply until the fuel supply is stopped. As shown the valve stem 1 admitting steam to the turbine (not shown) driving a blower for the air supply actuates a lever 2, rod 3 and locking lever 4 which is moved into or out of the path of a nut 5 on the threaded portion of a rod 6 adapted to control the supply of coal dust. Upon starting up, the valve stem 1 is turned to admit steam to the turbine and the locking lever 4 is moved out of the path of the nut 5 to permit movement of the rod 6 to start the fuel supply. When fuel is being supplied the nut 5 is in the path of the lever 4 which cannot be moved until the fuel supply is shut off. The Specification as open to inspection under Sect. 91 (3) (a) comprises a modification shown in Fig. 3, (Cancelled) adapted for locking as many coal dust supplying devices as exist. The valve stem 1 actuates a lever 2, rod 3, lever 16 and rod 17 which operates one or more locking devices such as 4<1> co-operating with the nut 5 on the shaft 6 controlling the clutch 19 connecting the drive 20, 21 of the fuel conveyer 22. This subject-matter does not appear in the Specification as accepted.
Patent GB-1420697-A (GB)
Title: Load-sharing control means
IPC: H02P5/69
Filed: 1973-05-22
Abstract: 1420697 Clutch control; hydraulic transmissions; toothed gearing PHILADELPHIA GEAR CORP 22 May 1973 [7 June 1972] 24274/73 Headings F2L F2Q and F2W A load-sharing drive to two, three or other number of pinions 31, 32 driving a bull gear 30 of a cement grinding mill, and driven by individual motors 10, 20, includes in the drive path of at least one pinion a clutch 22 the torque capacity of which is varied by a signal from a differential amplifier 41 comparing signals from transducers 16, 26 sensing the power input to the motors 10, 20, as by voltage and current transformers 14, 15. The clutch 22 may be of electromagnetic, hysteresis, eddy current, hydrodynamic, hydroviscous or centrifugal clutch type, and is permanently slipping, for which purpose speed reducers (or increasers) 13, 23, arranged in each power path, have different ratios; the pinions 31, 32 have slightly different numbers of teeth; or the drive motors may operate at slightly different fixed speeds. In Fig. 1 the clutch 22 is hydroviscous controlled by clamping force by a servo valve 45 controlled through a summing junction 42 and power amplifier 44 by the combined output of the differential amplifier and a pre-set potentiometer 43. The power path to the other pinion 31 may include a fixed capacity clutch and control 11 used for starting. Where three pinions are used the variable clutch of the third pinion may be controlled by comparison of its motor supply with that of either the second or first pinion.
Patent GB-178383-A (GB)
Title: Improvements in or relating to valve gear for steam distribution in duplex pumps
IPC: F01L21/04
Filed: 1921-09-13
Abstract: 178,383. Carruthers & Co., Ltd., Gourlay, J., Johnstone, G. K., and Young, J. Sept. 13,1921. Linkage gears.-In duplex valve mechanism of the kind described in Specification 177,115, wherein the valves of the adjacent cylinders are operated by connections 11, 12 on levers 1, 2 operated by the pistonrods, and pivoted respectively on opposite sides of the connections, the levers are carried in a housing 3 bored transversely at 5, 6 for the fulcrum pins 7, 8. The levers 1. 2 are fitted with bushes 9, 10, 9<a>, 10<a> respectively. When the bushes shown in use are worn, the pins are shifted to occupy the bushes 10, 9<a>, the valve slides and associated parts being correspondingly altered. In a modification. Fig. 4, pairs of bushes 9<x>, 10<x>, 9<y>, 10<y> are provided in the levers 1<a>, 2<a> respectively, and removable fulcrum pins 7<a>, 8<a> are screwed into the housing 3<a> as shown, or into the bores 5<b>, 6<b> after wear.
Patent GB-1388089-A (GB)
Title: Information storage apparatus
IPC: G11B17/032
Filed: 1973-05-22
Abstract: 1388089 Mounting discs on shafts INTERNATIONAL BUSINESS MACHINES CORP 22 May 1973 [21 June 1972] 24320/73 Heading F2U [Also in Division E2] An information storage disc 20, 25 is secured at a central hole to a rotatable hub 30 by means of an expandable collet 60 having a rim for gripping the disc against the end 31 of the hub and a cylindrical portion 65 which fits the hole in the disc and the bore 32 of the hub when expanded by a core 50 on closure of lid 16. The core is rotatable on shaft 40 to allow rotation of the disc.
Patent GB-584085-A (GB)
Title: An improved push button structure for electric motor starters
IPC: H01H13/02
Filed: 1944-12-06
Abstract: 584,085. Press - button retractive switches. SLEEPER, C. E. Dec. 6, 1944, No. 24386. [Class 38 (v)] An electric starter push-button control comprises an annular flange A through which a mushroom-headed guard B, surrounding a "start" button C, projects. The button C operates a rod E which engages one end of a spring F to close a normally-open contact N. The spring F is secured by a pin G in a side-slot in a moulding M which is fixed to and moves with the guard B. A spring D acting on the guard B normally maintains a part of the spring F in a position wherein it bridges fixed contacts 0, P. Reference has been directed by the Comptroller to Specification 495,643 and U.S.A. Specification 1,884,569.
Patent GB-351802-A (GB)
IPC: D06F93/00
Filed: 1930-08-14
Abstract: 351,802. Ink -ribbon mechanism. NATIONAL MARKING MACHINE CO., 4022, Cherry Street, Cincinnati, Ohio, U.S.A. - (Assignees of Constable, C. E. ; 4022, Cherry Street, Cincinnati, Ohio, U.S.A.) Aug. 14,1930, No. 24394. Convention date, May 16. [Class 100 (iv).] Guides ; feeds. - In machine scomprising a movable type-head for marking laundry tags and the like, ink-ribbon guides are raised and depressed by means of the type-head and normally hold the ink-ribbon out of contact with the types and platen, the arrangement permitting of insertion of a tag and adjustment of the types without interference from the ink-ribbon. The type-head may actuate feeding-means for the ink-ribbon. In the machine shown in the Figure, type-wheels 19 are mounted in a rocking head 16 carried by a base 12 provided with a platen 22. Spools 24, 25 for a ribbon 34 are mounted on pins 23 on a plate 20, the ribbon passing over guides 32, 33 on slides 26, 30 normally held in raised position by springs 29, 35. A ratchetwheel 36 on the spool 25 engages a pawl 44 on a rocking plate 38 co-operating with pins 42, 43 on the slide 30. When the type-head is depressed for impression, the side plates thereof engage the slides, and the ribbon is fed and depressed on to the tag.
Patent GB-204508-A (GB)
Title: Improvements in or connected with road watering or sprinkling vehicles
IPC: E01H3/02
Filed: 1922-09-09
Abstract: 204,508. Eagle Engineering Co., Ltd., and Cox, C. H. Sept. 9, 1922. Spraying-machines; nozzles with cut-off devices; roses.-A mechanically-propelled road-sprinkling vehicle is provided with gravity and pressure sprayers, the gravity sprayer 9 ejecting the liquid over a given area and the pressure sprayer 10 ejecting liquid over an extended area on either side of and beyond that of the spray ejected from the gravity sprayer. In the case of a steam-driven vehicle, the pressure is obtained by means of an ejector 11 while in the case of a petrol or electric driven vehicle it may be obtained from a pump. The spraying-members comprise two independent cylinders 9, 10 connected in the gravity, and pressure supply respectively, the cylinder 9 being perforated on the under, and the cylinder 10 on the upper side. The outlets are controlled by means of pistons 17, 18 mounted on a common pistonrod 19 so that they mav be simultaneously operated by a rod 30 connected to a lever 20. Additional control is provided by means of connected slides 24, 25 engaging undercut grooves 26, on the outer peripheries of the cylinders and provided with arms 27 which are connected to rods 29, 31 by which they are operated from the driver's seat.
Patent GB-1038537-A (GB)
Title: Process for the production of heterocyclic nitrogen compounds
Inventor: HALL REGINALD HAROLD
IPC: C07D213/09
Filed: 1964-06-12
Abstract: The catalytic production at an elevated temperature of pyridine and alkyl pyridines from a gaseous reaction mixture comprising formaldehyde, crotonaldehyde and ammonia is effected in the presence of molecular oxygen. The process is preferably effected by pre-heating a mixture of formaldehyde and crotonaldehyde, optionally with steam, and adding thereto the oxygen and ammonia, preferably preheated, immediately before contact with the catalyst. A reaction temperature of 300 DEG  to 550 DEG  C. is preferred and the formaldehyde can be provided as paraformaldehyde, trioxane or a precursor of formaldehyde, e.g. an acetal.  The catalyst employed may be any of those used for converting mixtures of aldehydes and ammonia into pyridine bases, being preferably mixtures of silica and alumina, optionally containing titania, zirconia, ceria or thoria, in a fluidized bed.
Patent GB-1045686-A (GB)
Title: Charged particle beam machining
IPC: B23K15/02
Filed: 1963-06-20
Abstract: 1,045,686. Electron beam machining. UNITED AIRCRAFT CORPORATION. June 20, 1963 [June 20, 1962], No. 24554/63. Heading B3V. [Also in Divisions G3 and H4] In an electron-beam machining apparatus a workpiece 14 is placed within a machining tube 10 and a template 16, comprising a photographic negative having opaque and transparent arcs, is scanned through an optical system 18, 20 by a photo-tube 22 co-operating with a cathoderay tube 12. The X and Y deflections of the tubes 10, 12 are synchronized and the intensity of tube 12 is so adjusted as to cause an illuminated spot to appear on the tube face. The output of a 100 kc./s. oscillator 30 drives a generator 32 providing pulses of 1 microsecond length to an input of an AND gate 34. The output of gate 34 drives a sequence generator 56 and is fed through an 8 microsecond delay network 36 to an input of an AND gate 24. The output of photo-tube 22 when the scan falls on a transparent area of the template is fed to another input of AND gate 24 and the arrival of the delayed pulse triggers a monostable multivibrator 26 actuating the intensity input of tube 10 to drill a hole or vaporize a portion of workpiece 14. The output of the multivibrator inhibits gate 34 so that it does not respond to the pulses from the generator 32. After a delay, determined by an adjustable circuit 28, multivibrator 26 reverts to its normal state turning off the electron beam of tube 10 and permitting gate 34 to respond to the pulses from generator 32. The spot of tube 12 is then moved by signals from the sequence generator 56 until another transparent portion of the template is reached.
Patent GB-361841-A (GB)
Title: Improvements in mechanism for the reproduction of sound
IPC: G10K13/00
Filed: 1930-08-18
Abstract: 361,841. Gramophones. LANCHESTER, F. W., Dyott End, Oxford Road, Moseley, Birmingham. Aug. 18, 1930, No. 24627. [Class 40 (ii).] A gramophone sound-box for use with soundreproducing apparatus embodying a horn comprises a piston diaphragm 3 connected with the needle 12 by a member which is so disposed that the lateral vibrations of the needle are transmitted to the diaphragm by longitudinal movements of the said member 5 alone, while longitudinal movements of the needle effect merely a slight angular displacement of the diaphragm. The diaphragm 3 is preferably of conical form furnished with a cylindrical rim adapted to work in'conjunction with a packing ring 4 arranged either internally or externally on a conical member 1 having a passage 1a communicating with the tone arm. The ring 4 may be of soft rubber, felt, &c., and the core 3 may be reinforced by a smaller cone 3a. The cones may be formed of paper with the component parts connected together by dissolved celluloid. The member 5 enters an inclined hole in the needle holder 6 and is heldin position by a grub screw, or a thumbscrew 8 may serve the double purpose of securing the needle12 and the member 5. The shank 6a of the needle holder 6 is provided with a rubber bush 10 and disposed in a housing 9. The upper end of the shank is adapted to serve as a fulcrum for the needle holder either by the formation of a knob at the upper end of the shank so as to compress the rubber sleeve locally or a thread is wound around the upper end of the rubber sleeve 10 so as to form an enlargement which will fit tightly in the housing 9. A set screw 17 at the upper end of the housing provides for adjustment. A conical metal guard 14 consisting of perforated metal or a series of bars is mounted in a bracket 13 carrying the housing 9 and is secured by soldering or otherwise to a ring 15 adapted to be screwed on to the conical member 1. A horn 20 is connected with the tone arm 2 by a tube 19 of substantially constant diameter arranged as shown in Fig. 4.
Patent GB-401846-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/42
Filed: 1932-09-05
Abstract: 401,846. Electric discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and RYDE, J. W., c/o General Electric Co., Wembley, Middlesex. Sept. 5, 1932, No. 24713. [Class 75 (ii).] For correcting the deficiency in light of relatively long wave-length in the light emitted by a high pressure metal vapour electric discharge lamp running at a temperature greatly above atmospheric, the lamp is used in combination with a reflector or other separate surface which is coated with an inorganic substance that phosphoresces with the emission of light of relatively long wave-length. A suitable substance is zinc-cadmium sulphide containing a small admixture of copper.
Patent GB-1144909-A (GB)
Title: Improvements in or relating to frequency dividing means
Inventor: SHARDLOW PETER ROBERT DIGBY
IPC: H03B19/00
Filed: 1967-05-26
Abstract: 1,144,909. Musical instruments. ARBITER ELECTRONICS Ltd. 26 May, 1967, No. 24737/67. Heading G5J. [Also in Division H3] In a frequency halving arrangement the waveform to be divided is applied to a phasesplitter 10, Fig. 1, to lines 11, 12 respectively. These are applied to gates 24, 25 respectively via level-setting means 22, 23 which respectively add positive and negative biases to the signals on lines 11, 12 respectively. The output on line 12 is also applied to a filter 19 which delays the wave a quarter of a cycle d, Fig. 3, and passes it to a squarer 20 whose output e triggers a bistable circuit 21 to produce a square wave f of half frequency. Square wave f is applied directly to control gate 25, the positive portions A, B and C opening the gate to pass the corresponding portions of waveform b; it is also applied to control gate 24 via capacitor 26 and rectifier 28 whereby the negative portions C, D &c. open the gate to pass the corresponding portions of waveform a. The outputs of the two gates are combined to give waveform g in an additive mixer 29. The arrangement is intended more particularly for amplifying and modifying the output from a musical instrument, e.g. a saxophone, and includes a further mixer 30 and switches 18, 30, 32 whereby the final output on line 34 may comprise, either alone or in combination (1) signal at the input frequency from amplifier 10 via line 31, (2) signal at half frequency from mixer 29, and/or (3) signal at double frequency, produced by means of filters 13, 14 half-wave rectifiers 15, 16 and an additive mixer 17.
Patent GB-833917-A (GB)
Title: Improvements in or relating to magnetic contacts in sealed protective tubes
IPC: H01H51/28
Filed: 1958-07-31
Abstract: 833,917. Electromagnetic switches; contact members for switches. SIEMENS & HALSKE A.G. July 31, 1958 [Aug. 13, 1957], No. 24768/58. Class 38 (5). Magnetic contact springs F1, F2 in a sealed protective tube (not shown) each have a region L1, L2 in the centre of their contact area which has a higher electrical conductivity than the rest of the spring. When the contacts are closed by a magnetic field produced around the tube the current concentrated in the regions L1, L2 produces a magnetic field, shown by a dashed line in Fig. 3, which tends to hold the contacts together. The inserts of higher conductivity material may be connected to terminals such as D and insulated from the remainder of the spring by an oxide film. The springs may be of iron and the inserts of silver. The inserts may be raised slightly above the surface of the springs so that there are two small air gaps in the magnetic path shown in Fig. 3.
Patent GB-352779-A (GB)
Title: Improvements in or relating to aerial systems
IPC: H01Q21/20
Filed: 1930-08-19
Abstract: 352,779. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE 12, Hallesches Ufer, Berlin. Aug. 19, 1930, No. 24810. Convention date, Aug. 27, 1929. [Class 40 (v).] In order to ensure a uniform horizontal distribution of the radiated field, with little or no vertical component, so as to be suitable for broadcasting, a number of individual aerials are energized in phase and arranged in triangular, polygonal, or circular formation, as shown in Figs. 1, 3 and 4. Each formation comprises opposed pairs of aerials or aerial structures separated by half a wave-length or a multiple of that distance. The vertical component may be still further reduced by arranging a number of such systems one above the other. The actual transmitter or receiver is preferably located at the centre of the aerial formation, and is connected to the outer members by feed-lines. Specification 347,525 is referred to.
Patent GB-155409-A (GB)
Title: Apparatus with variable self inductance
IPC: H01F21/12
Filed: 1919-10-10
Abstract: 155,409. Marks, E. C. R., (Vlug, A. E. J.) Oct. 10, 1919. Inductances.-A variable inductance is made in sections movable on a common axis or on individual axes so as to bring them into or out of mutual inductive relation, being at the same time cut into or out of the circuit. In the form shown in Fig. 1, the sections 1, 2, 3, 4 are slidable but not rotatable on an insulating tube bearing contacts 12, 13 connected as shown. Section 1 may be fixed. Each section has a pair of spring contacts 9 connected to the ends of the winding, and a diametrically opposite pair of contacts 10 connected together. In the position shown, the sections 1, 2, 3, 4 are in series. On sliding a section to the right,'the winding is cut out of circuit by disengagement of the contacts 9, 12, the break in the circuit being bridged by engagement of the contacts 10, 13. In the modification shown in Fig. 2, the sections carry spring contacts 17 which make connexion with a strip 16 or are lifted out of contact therewith by a wedge contact 18 at the beginning of the next section when this is pushed into engagement. In the construction shown in Fig. 3, the sections 2, 3 are wound on separate formers and may be turned by knobs 21. Each axle 20 carries a commutator having two pairs of segments, one pair 22, 23 being connected to the ends of the winding, and the other pairs 24, 25 being connected together, so that the coil is cut into or out of the circuit according as its axis coincides with or is perpendicular to the common axis 26. The invention is applicable to tuning-inductances for wireless receiving-circuits.
Patent GB-692467-A (GB)
Title: Improved mooring device
IPC: E02B3/24
Filed: 1951-10-24
Abstract: 692,467. Bollards. OHLSSON, A. G. Oct. 24, 1951. [Nov. 18, 1950] No. 24864/51. Class 113 (i). In a device for mooring vessels to quays or the like adapted to be moulded into a concrete structure 4, comprising a bow 1 and at least one bollard 2 situated therebehind, the bow and bollards prior to their being moulded into said structure are rigidly interconnected to form a unit by means of one or more connecting members 3 which from the beginning maintain the bow and the bollard or bollards in their desired mutual position in such manner that the parts of the mooring device may be mounted as a prefabricated unit at the place of use for moulding into concrete.
Patent GB-804539-A (GB)
Title: Improvements in or relating to footwear
IPC: A43B23/02
Filed: 1957-08-07
Abstract: 804,539. Boots &e. HERLIHY, W. F, and HERLIHY, J. J. Aug. 7, 1957 [Aug. 15, 1956], No. 24868/57. Class 17(2) In a shoe comprising an upper lining 30, Fig. 7, an insole 36 stitched to the upper lining only, and an upper assembly 10, Fig. 9, the upper and inner lining are stitched together along the throat opening 42 only, and that portion of the upper forward of the heel breast line is turned out and stitched down to the outsole. Before the sole is attached a counterstiffener 44, Fig. 11, may be inserted and the assembly subjected to a die moulding pressure to unite the quarters with the counter stiffener and shape the heel end of the shoe. The lasting margins of the heel end of the upper 35, Fig. 9, are turned in to form a heel attaching flange. A last is inserted and heel piece 46, Figs. 10a, 11, is placed in the heel seat area to the rear of the insole and attached to the upper, upper lining, and counter stiffener by tacks or staples 48, Fig. 11. Outsole 50, Fig. 12, is attached by stitching 52 to the out-turned edge of upper 12 forward of the heel breast line, and by staples 56, Fig. 11, to heel piece 46 in the heel seat area. A welt-strip 54, Fig. 12, may be used to cover the out-turned edge of the upper.
Patent GB-921045-A (GB)
Title: Production of rifamycin b
Inventor: MARGALITH PINHAS
IPC: C07D498/08
Filed: 1959-07-20
Abstract: Rifamycin B, which is described in Specification 877,732, is produced by fermenting a rifamycin-producing strain of Streptomyces mediterranei under submerged aerobic conditions in a nutrient medium containing a source of organic nitrogen, an assimilable carbon source, mineral salts and a barbituric acid of the formula: <FORM:0921045/IV(a)/1> wherein R and R1 are hydrogen, lower alkyl, lower alkenyl or a mononuclear carbocyclic aryl radical, and X is oxygen or sulphur, or an alkali metal salt thereof, such as sodium barbiturate, diethylbarbiturate, or phenylethylbarbiturate, or dimethyl, phenylethyl, diethyl or ethylmethyl barbituric acid.