baber/WOPTO huggingface dataset:
Patent GB-1060276-A (GB)
Title: Side chain chlorination of alkyl pyridines
IPC: C07D213/26
Filed: 1964-03-16
Abstract: Mixtures of side chain chlorinated C1-C4 alkyl pyridines are prepared by treating a C1-C4 alkyl pyridine with atomic chlorine, or with chlorine in the presence of a free radical initiator containing an azo group, in a substantially anhydrous reaction medium comprising at least one mole of sulphuric acid, fuming sulphuric acid, sulphur trioxide, chlorosulphonic acid, pyrosulphuric acid, or a mixture of two or more such materials, per mole of C1-C4 alkyl pyridine.  The atomic chlorine may be produced in situ by exposing the reaction mass into which chlorine gas is passed to actinic radiation, e.g. U.V. light, visible blue light or X-rays.  It is preferred to effect the chlorination of the invention in the presence of a trichloride or pentachloride of phosphorus, arsenic or antimony.
Patent GB-1281113-A (GB)
Title: Cermet product and method and apparatus for the manufacture thereof
Inventor: NEMETH B J
IPC: B23P15/28
Filed: 1970-03-09
Abstract: 1281113 Very high pressure apparatus KENNAMETAL Inc 9 March 1970 [19 March 1969] 11076/70 Heading B1X [Also in Divisions B3 B5 and C1] An apparatus suitable for e.g. diamond manufacture, comprises a ring 10 of cemented tungsten carbide press fitted into a heavy surrounding steel ring with pressure pistons 12 entering from each end. Fitted into the ring is a cell comprising an inner alumina sleeve 16 surrounded by a graphite tube 18 and further surrounded by an alumina tube 20. The charge 22 being placed within tube 16. The ends of tube 16 are closed by a pair of alumina discs 26 over which is a metal disc 28 extending the whole diameter of tube 20 and in electrical contact with graphite tube 18 resting on disc 28 is a metal ring 29 having an alumina plug 29 within it. Between the cell and ring 10 are sealing sleeves 30 of electrical insulating material having the characteristics of pyrophyllite or talc, and having disposed between them a metal sleeve 32. In operation the cell is inserted in the apparatus and pressure is applied by means of pistons 12 while tube 18 is heated by passing electric current through it via pistons 12 discs 28 and rings 29 enabling conditions of e.g. 50,000-70,000 atmospheres pressure and 1200-2000‹C to be obtained. When the charge 22 is carbon, holes 25 may be drilled into it to receive metal rods or wires 24. In another embodiment (Fig. 11) the cell has an outer alumina tube 200 a graphite sleeve 204 and inner alumina sleeve 206 fitted inside. The inside of the cell is divided into a number of compartments by means of alumina dividing members 210 into which compartments are placed the charges. Although the outer tube of the cell is conveniently of circular external cross-section, its internal crosssection may conveniently be of e.g. square, triangular or elliptical cross-section to enable the manufacture of members comprising diamond disposed in a matrix metal (see Division C1) of convenient shape making cutting tool inserts without first separating the diamond from the matrix metal (see Division B3).
Patent GB-610588-A (GB)
Title: Improvements relating to the manufacture of heat-exchangers
IPC: C23C18/31
Filed: 1946-04-11
Abstract: A method of tinning the internal copper or copper-containing surfaces of heat-exchangers of brazed or partly-brazed construction comprises three consecutive steps -(1) pickling the surfaces, e.g. in 50 per cent cold hydrochloric acid, (2) treating with sodium cyanide solution in the cold, e.g. 20 per cent, and (3) exposing to the galvanic action of a tin-plating solution. The plating solution may be one containing 25 to 50 gm. per litre of sodium cyanide and should contain a stannous salt, an example having the composition-sodium cyanide 50 gm. per litre, sodium hydroxide 5.6 gm. per litre, stannous chloride 5.0 gm. per litre. In a modified method, the exchangers are baked and tinned by immersion in two stages, one before and the other after baking.
Patent GB-164582-A (GB)
Title: Improvements in and relating to signalling apparatus
IPC: B60Q1/34
Filed: 1920-04-22
Abstract: 164,582. Rolph, W. M. April 22, 1920. Road-traffic signals on vehicles; mechanical telegraphs. - Relates to apparatus of the kind described in Specification 3141/13 and comprises means for multiplying the movement of the indicators. Brake and clutch levers p, q or levers r provided for the purpose are connected through Bowden wires to blocks a sliding on adjustable guides c and provided with tongues b engaging a pivoted arm f in a casing e. The arm f is connected by a link h to a segment or arm i from which the indicator k is directly operated. The screw threads n are provided to adjust the guides and also serve as stops for the blocks.
Patent GB-129429-A (GB)
Title: Improvements in Coin Freed Amusement Apparatus.
Inventor: JOFEH JOHN
IPC: G07F17/32
Filed: 1918-07-08
Abstract: 129,429. Jofeh, J. July 8, 1918. Exhibiting moving figures; fortunc-telling apparatus; dash-pot mechanism. - A coin-freed amusement apparatus having timed operation, - as in the arrangement shown, where a machine provides an illusion that a delivered card is extracted from a pack by a hand, comprises a lever 11 coupled by the action of a coin to t h e operating- handle 3 and connected by a link 14 to a bracket 15 on a rod 16 which carries a weight 17 at one end and operates in a dash-pot 18 at the other. The bracket also carries a rack 19 engaged by a pawl 20 which prevents the return of the weight until a full stroke has been completed. When the weight reaches its top position, a cam or projection 21 on the rack raises the pawl 20 and causes a pin 20<c> thereon to engage behind a tooth 22 on a pivoted arm 23, thereby holding the pawl 20 out of action. When the weight reaches its bottom position, a projection on the bracket 15 trips the arm 23 and disengages the tooth 22 from the pin 20<c>. The mechanism for moving the card is of known form, and is actuated by a crank 30 to which is pivoted a rod 31 sliding in a pin 32 on the lever 11. The pin 32 engages a stop 33 on the rod 31 when the lever reaches a given position in its stroke, and moves the mechanism. The motion of the hand is produced by the effect of a current of air from the dash-pot directed on to a cup 36 on the palm of the hand. Coin action, mechanical-connexion.-A coin inserted into the shoot 4 passes into a movable coin shoot 10 integral with the lever 11, and comes to rest against a pin 8 projecting from a pawl 6 pivoted on the part 10. On moving the handle 3, a projection 3<a> thereon engages the coin, the pressure of which on the pin 8 turns the pawl 6 so that it is moved into position to be engaged by the handle 3, which is thus coupled to the lever 11. Towards the completion of the forward stroke, the coin shoot engages a projection 28 on a pivoted strut 27 and disengages the strut from a pivoted spring-pressed pawl 24, which rises into a position to engage a projection 6<b> on the pawl 6. On the return strolte, the pawl 6 is first returned into set position by the pawl 24, and is then disengaged therefrom by the engagement of the lever 11 with a pin 24b projecting from a strut 24<c> integral with the pawl 24
Patent GB-819917-A (GB)
Title: Means for facilitating the introduction or removal of the cylinder of a printing, embossing or waxing machine
IPC: B41F9/18
Filed: 1956-04-13
Abstract: 819,917. Printing and embossing machines. HALLEY & SONS Ltd., J. and HALLEY, A. M. April 12, 1957 [April 13, 1956], No. 11251/56. Class 100(2) [Also in Group XXX] Means for facilitating the introduction or removal of the printing or embossing cylinder 3 of a printing or embossing machine comprises a carriage 8 adapted to support the cylinder when removed from the machine and incorporating a pair of rails 10 which extend forwards therefrom and are attachable to the framework 6 of the machine to constitute substantially horizontal supports disposed below the position of the spindle 3a of the cylinder when in the machine, whereby after lowering of a bearing cradle 5 which supports the cylinder when in the machine, the cylinder may be rolled along the rails from the carriage to the machine or vice versa. The cradle 5 is pivoted to the machine frame 6 at 5a and may be rocked about the pivots by means of a pair of pneumatically or hydraulically operated jacks 7. When the cylinder 3 is to be removed from the machine the carriage 8 which runs on castors 9 is moved close to that side of the machine which is remote , from the pivots 5a, the cradle 5 is raised to its uppermost position, and the rails 10 are attached to the carriage by pin and slot connections 10a so that the upper edges of the rails are continuous with the upper edges of side members 8a of the carriage, and to the machine frame at 6a. The cradle is then lowered until the spindle 3a is lifted off the bearings 4, on which it normally rests in the cradle, by the rails 10. The cylinder is then rolled along the rails until the spindle abuts against upright portions 8b of the side members 8a. The rails 10 may then be detached from the carriage and machine and U-shaped retaining catches 11 pivoted to the portions 8b are swung over the spindle and engaged on the pins 10a so as to secure the cylinder 3 on the carriage 8. The operation is reversed to introduce the cylinder to the printing and embossing machine.
Patent GB-1273262-A (GB)
Title: An alkaline galvanic cell
Inventor: KOCHERGINSKY M D
IPC: H01M50/107
Filed: 1969-04-28
Abstract: 1,273,262. Alkaline galvanic cell. M. D. KOCHERGINSKY, S. L. KALACHEV, L. F. PENKOVA, V. A. NAUMENKO, and K. N. GILMANOV. 28 April, 1969 [29 April, 1968], No. 11361/69. Heading H1B. An alkaline galvanic cell, e.g. a Mn-Zn cell, comprising two negative electrodes 2 separated from a common positive electrode 9 by diaphragms 8, has two plastics envelopes 1 with the portions 3 adjoining the negative electrodes 2 being semicylindrical, and the cell is provided with clamping means for holding the envelopes together. The envelopes may be provided with annular grooves 4 for accommodating straps for clamping them together. The envelopes can also be clamped together by means of a surrounding paper sheath.
Patent GB-686558-A (GB)
Title: Folding bedstead
IPC: A47C17/62
Filed: 1950-05-08
Abstract: 686,558. Tables convertible into bedsteads. DENT. O. K. May 2. 1951 [May 8, 1950], No. 11369/50. Class 52(iii) In a convertible table of the kind wherein the top is in two sections 7 each carried by a pair of legs 6 swingable outwardly from the base frame the latter consists of horizontal side members 1 supported by U-shaped runners 2 and interconnected by transverse bars 4. The top sections may be secured, in the table position, by a removable drawer 14 or by latches or a bolt and the frame members are preferably tubular. Specification 188,276, [Class 52(ii)], is referred to.
Patent GB-457085-A (GB)
Title: Improvements in or connected with slide-rule cursors
IPC: G06G1/06
Filed: 1936-04-21
Abstract: 457,085. Slide-rules. FABER CASTELLBLEISTIFT-FABRIK AKT.-GES., A. W., Stein, near Nuremberg, Germany. April 21, 1936, No. 11387. Convention date, April 30, 1935. [Class 106 (i)] A cursor for use with slide-rules having graduations on the upper and lower side edges as well as on the face comprises a frame or guide members carrying transparent plates with hair line indexes for co-operating with the respective graduated scales. As shown in Figs. 1 and 3, a transparent face plate 1 is supported in guide strips 2, 3, formed with lugs 4 ... 7 in any convenient manner for supporting transparent plates 8, 9. The strips are provided with fillets 10, 11 for guiding the cursor along the stock, a spring 17 being provided to hold the cursor in adjusted position. As shown in Figs. 5 and 7, the face plate 1 is supported in a frame 2 and the side plates 8, 9 are pressed against the lugs 4 ... 7 by spring elements 12, 13. In another form as shown in Figs. 12 and 13, the plates 1, 8, 9 are formed integrally and the fillets 10, 11 are directly attached thereto, the whole being protected by metal end strips 2,3.
Patent GB-495957-A (GB)
Title: Improvements in or relating to variable stroke engines
IPC: B65G27/14
Filed: 1937-04-21
Abstract: 495,957. Fluid pressure reciprocating engines. USKSIDE ENGINEERING CO., Ltd., and WOOD, J. W. April 21, 1937, No. 11413. [Classes 122 (ii) and 122 (iii)] A variable stroke engine for a jigging coal conveyer is normally double-acting, and has a fluidactuated, differential piston valve 6 controlling the distribution. The engine comprises opposed pistons 51, 511 which oscillate a central shaft which by outside rocking-lever means 35 reciprocates the conveyer. The valve is pressed up by fluid-pressure compression and is reversed when the piston 5<1> overruns one of the ports 24-26. The cylinder ends exhaust to a manifold 23. The piston 5<1> is connected to the end of a lever 32 on a central, rectangular, rocking-shaft 33. The rod 30 and lever 32 make angles of 12¢ and 130‹ to the axis of the cylinder, reckoning anticlockwise at the beginning of the stroke to give a large turning-moment. The lever 35 is at an angle of 20‹ to the lever 32. The piston 511 is connected to the lever 32 at an intermediate point and effects a slower return stroke. Both ends of the shaft 33 may carry levers of variable leverage. The engine may be made single-acting by a valve 38. On the forward stroke to the right, the troughing is moved quickly and gradually reduced in speed. On the return stroke, the troughing starts rather slowly and increases in speed. A chamber 22 with a wick supplies oil to the inlet port 18. Specification 255,245, [Class 122 (iii)], is referred to.
Patent GB-647100-A (GB)
Title: Pencil sharpener
IPC: B43L23/08
Filed: 1948-04-26
Abstract: 647,100. Pencil sharpeners. BAGGETT, L. R. April 26, 1948, No. 11433. [Class 146 (iii)] A pencil sharpener comprises a hollow-conical shell 26 formed of an abrasive stone. The stone is removably held inside a metallic shell 17 by a shouldered ferrule 21 and the shell assembly is rotated by a stud 15 bearing in a cap 13 of a tubular handle 10 containing a driving spindle 11. The stone 26, made from carborundum or aluminium silicate, is formed with a number of longitudinal slots 27 which align with a number of slots 18 in the shell 17 to allow removal of chippings from the pencil as sharpening proceeds.
Patent GB-976786-A (GB)
Title: Improvements in or relating to developing apparatus
IPC: G03D3/06
Filed: 1963-03-22
Abstract: 976,786. Priming circumferential-flow pumps. W. ZINDLER, [trading as LUMOPRINT ZINDLER KOMM.-GES.]. March 22, 1963 [April 3, 1962], No. 11496/63. Heading F1C. [Also in Division G2] A developing apparatus includes a liquid treatment bath and a reserve container connected together by a supply duct having a non-self-priming pump, such duct serving as a return conduit to the reservoir beneath the tank on stopping of the pump; the pump is located outside the reserve container and higher than the bottom thereof, and has a housing, the lower region of which form in the supply duct a downwardly closed container for the treatment liquid. In the embodiment shown a liquid treatment bath 6 is provided above a reservoir 29 and is connected thereto by pump means 20, 18 and ducts 23, 27, 24, 25. The lower part 3 of pump and bath housing 1 closes the container 28 for the reservoir 29 and has a latching device 31. During use, a hollow bulb of resilient material is put over pipe 25 and squeezed to draw liquid up from reservoir 29 into pump housing 18. The bulb is then removed and impeller 20 rotated by motor 17 to pump liquid from reservoir 29 to bath 6. A float-operated switch may be provided to stop the motor when the liquid in bath 6 has reached a required height. On stopping of the motor the liquid is siphoned out of tank 6 back to housing 18 and reservoir 29.
Patent GB-115130-A (GB)
IPC: B63C9/00
Abstract: 115,130. Schermuly, A. W. L. June 13, 1917. Receptacles for apparatus. - A container for lines used with lifesaving rocket apparatus &c. is made of waterproof fabric &c. with the main portion b of the lid fitting within turned-over portions a<2> of the sides a. Strips c of fabric &c. are cemented over the parts, to complete the closure, and can be pulled off, to open the container, by grasping their free ends. A cardboard or other sheet h immediately under the cover serves as a support. The lines may be enclosed in paper, &c., or placed between plates or sheets, &c., and may sometimes be inserted through a side opening, afterwards closed and cemented. The line ends may be left protruding so that, in use, the lines themselves tear their envelopes.
Patent GB-101780-A (GB)
Title: Improvements in or relating to Machines for Casting Flat Stereotype Printing Plates.
Inventor: WALKER ARTHUR HENRY
IPC: B41D3/02
Filed: 1915-10-19
Abstract: 101,780. Walker, A. H., (Wood, H. A. W.), Oct. 19, 1915. Stereotype.-A mould for casting flat stereotype printing - plates comprises a lower part provided with a pair of gauges to receive a matrix, and a superposed part provided with a pair of gauges at right-angles to the lower gauges, and adapted to shape the edges of the plate and guide them during the removal of the plate from the mould. The parts of the mould are held resiliently in contact with the pump nozzle, and the upper part is adjustable for casting plates of different thicknesses. The lower mould-part 93, Fig. 2, is reciprocated vertically by means of a cam (not shown) operating through a link 108, lever arms 109, 111 on a rockshaft 110, and connecting-rod 112. An adjustable stop 114 limits the upward movement of the part 93. The upper part 95 is bolted to plates 323, Figs. 1 and 2, mounted on rods 322, 332 engaging slotted bearings in fixed brackets 321. The plates 323 are connected to the brackets 321 by bolts 330, Fig. 3, passing through thimbles 329 engaging slots 323a in the plates 323 and extending slightly below the bottom of the plates, and distancepieces 321<a> are provided between the brackets 321 and the lower ends of the thimbles. This arrangement permits a limited movement of the upper mould part 95, and the zone of this movement may be varied by using distance-pieces 321<a> of different thicknesses, so that the mould cavity can be caused to register with the pump nozzle for all thicknesses of plates. The lower mould part 93 is provided with a pair of gauges 103, 104, Fig. 5, forming guides to receive a matrix. The gauge 103 is formed with a dovetail guide-part 103<a> and is fixed at one end and free at the other to allow for expansion. The gauge 104 is secured at one end to a bracket 104<a>, Fig. 9, adjustable for plates of different widths, and at the other end is provided with a dovetail part slidably engaging a bracket 104<b>, Fig. 6, to allow for expansion. The upper mould part 95 is provided with a pair of gauges 100, 99, Fig. 2, at right-angles to the gauges 103, 104 and formed with bevelled portions 101 to shape the ends of the plate and hold it when the mould is opened. One of the gauges 99, 100 is preferably adjustable to suit plates of different widths. The gauges 99, 100, 103, 104 are replaced by others when casting plates of different thicknesses. The mould part 95 is resiliently held in contact with the nozzle 149 of the metal-supply pump by springs 324 on the rods 322, 332, bearing against the plate 323 adjacent to the nozzle, and also against collars 325 secured to the rods. The lower mould part 95 is held against the nozzle by a spring-pressed bell-crank lever.
Patent GB-234083-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B10/06
Filed: 1925-05-11
Abstract: 234,083. Bethlehem Steel Co., (Assignees of Essen, P. D. van). May 15, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Projectiles for smooth-bore trench mortars and like guns are made with a part K of maximum diameter near the forward end acting as a gas check, and a long hollow-body E tapering towards the rear and ending in a conical tail-part G provided with four ribs H having small projections J of larger diameter than the bore of the gun. These projections are compressed when the gun is loaded, whereby the projectile is accurately centred and guided even after the part K has passed out of the muzzle on discharge. The projectile is built up of three pieces A, E, G screwed together.
Patent GB-399579-A (GB)
Title: Improvements in or relating to high frequency oscillators
IPC: H03B9/10
Filed: 1932-04-22
Abstract: 399,579. Valve-generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Hansell, C. W.; Port Jefferson, Long Island, New York, U.S.A.) April 22, 1932, No. 11675. Convention date, May 8, 1931. [Classes 39 (i) and 40 (v).] An oscillation generator having a cathode, two or more anodes and means for applying a magnetic field, is made self-starting by (a) using a source of potential of poor voltage regulation for supplying the anodes, so that the potential on the anodes is greater at starting than during operation or (b) providing means for automatically increasing the strength of the magnetic field after starting. As shown in Fig. 1, two anodes 6, 8, mounted around a cathode 2, are connected with a tuned circuit consisting of a condenser 12 and an inductance 14 coupled to an antenna in the form of a half wavelength radiator 30. A field winding 4 is energized from a source 5 through a rheostat 7. A generator 16, having a poor voltage regulation characteristic, is connected through a resistance 22 with the mid-point of the inductance 14, and with the cathode. At starting, the effect of the magnetic field on the electrons is overcome by the potential supplied by the generator 16, and the electrons take the path B instead of the path A. After oscillations have been built up, the potential of the generator falls. The anodes are made thicker at the parts 18 struck by electrons. The anode of a modulating valve 26 is connected with the resistance 22. In order to increase the frequency stability, the inductance 14 may be coupled through a coil 34 with a line 32 which is adjustable by means of a slider 36. In a modification, the anodes are connected directly with the radiator. In the generator shown in Fig. 2, an auxiliary winding 4<1> is connected in the circuit of the generator 16 so that the magnetic field is increased to its normal strength after oscillations have built up. The two methods of control may be combined. The tuned circuit is connected by blocking condensers 40 with the radiator 30.
Patent GB-262717-A (GB)
Title: Improvements in or relating to variable speed gears
IPC: F16H3/44
Filed: 1926-05-04
Abstract: 262,717. Ferrari, J. M. L., Lesprit, A. V., and Martin, E. M., (trading as Soc. F. L. M.). Dec. 11, 1925, [Convention date]. Variable-speed gearing is adapted to yield a continuously variable positive drive by the use of a toothed element comprising packed plates p, p<2>, p<3>, p<5> carried by a circular openwork frame or wheel a., Fig. 3, which plates move so as to accommodate themselves to the varying pitch of teeth upon coacting members such as q, Fig. 7, while presenting an unbroken band of such movable teeth. In order that the gear band may not be interrupted by the spokes b of the wheel a, such spokes are not straight so that some of the plates p, p<2>, Fig. 4, can be cut away to accommodate portions of the spokes, and yet present an unbroken surface with their edges, which are rounded as shown in Fig. 7. The assembled plates are held in place by screwed-on cover plates n, Fig. 3. Such a built-up wheel a is shown in Fig. 6 as part of an auxiliary variablespeed gear controlling an epicyclic train. Stepped bevel planet wheels 3, 16 carried by a, driving- shaft i mesh respectively with a gear 4 fast on a driven shaft y and with a gear ring 17 upon the wheel a which is loose. The shaft y is driven at different speeds in both directions as a pinion 2 is moved over the gear ring of plates p, p<2>, p', p<5> to points at different distances from the axis of the composite wheel. The pinion 2 is always connected to a planet-carrying driving frame 14 by a long pinion 2<1>, and control is effected by turning a screwed spindle 6.