baber/WOPTO huggingface dataset:
Patent GB-142951-A (GB)
Title: Improvements in and relating to pulverulent-fuel reservoirs
IPC: F23K3/00
Filed: 1919-02-24
Abstract: 142,951. Muhlfeld, J. E., and Caracristi, V. Z. Feb. 24, 1919. Shoots.-A storage hopper adapted for supplying pulverulent fuel to locomotive tenders, ships' bunkers, or the like is provided, as shown, with an oulet pipe 13 depending from the lower tapering part of the hopper 10, in which is arranged a feeding-screw 33 mounted on a vertical shaft 27 driven by a motor arranged on top of the hopper. Below the screw is arranged a sliding valve 15 and a tubular extension 41 upon which is mounted a telescopic sleeve 42, the lower end of which is adapted to engage with a tapering opening 44 on the top of the tender 19. A vent 59 is provided at tEe top of the tender for the escape of air and dust which is carried back to the hopper 10 by a flexible hose 56 connected to a pipe attached to top of the hopper and provided with a flange 58 of rubber or other material adapted to form an airtight connexion with the opening 59. The sliding valve 15 may be replaced by a disk valve adapted to rotate about a diameter.
Patent GB-1047893-A (GB)
Title: Improvements in and relating to pressed glass articles
IPC: C03B11/10
Filed: 1964-02-04
Abstract: <PICT:1047893/C1/1> A glass article, such as the base-plate of a cathode-ray tube envelope having a base portion and an annular flange portion, is press moulded by introducing a glass charge into a mould having a base surface, a peripheral flange surface and a radially inwardly extending lip defining the upper edge of the flange portion of the glass article, moving a plunger downwardly into the mould to press the glass charge and closing the peripheral area between the plunger and the lip of the mould before the plunger has reached its final pressing position.  The article may be rectangular in shape thus having a flange portion with opposed long and opposed short sides.  A mould has a concave base surface 16, flange forming surface 17, and a shell ring 18 supported on base part 15 which defines a further flange forming surface 19 and a sealing edge forming surface 20 extending radially inwardly. A plunger 21 includes a convex base surface 22, peripheral flange surface 23 and a substantially straight flat portion 26.  The flat portion 26 extends parallel to the axis of the plunger towards the base of the plunger for a distance sufficient to ensure that any gap between plunger and mould ring 18 is closed before any glass is pressed up to that position, as is illustrated in Fig. 8 (not shown), in which a prior art mould and die is shown in heavy lines and a plunger of the present invention shown in chain dotted lines.  It is more essential for the flat surface 26 to extend further down the long faces of the plunger than the short faces. The article thus formed has at least some portions of the inner surface 35 of its flange extending substantially straight and parallel to an axis extending through the centre of the base portion for a substantial distance along the flange portion.
Patent GB-326952-A (GB)
Title: Improved manufacture of plastic masses from cellulose derivatives
IPC: C08L1/10
Filed: 1929-02-12
Abstract: 326,952. Imray, 0. Y., (I. G. Farbenindustrie Akt.-Ges.). Feb. 12, 1929. Compositons containing cellulose esters.- Plastic masses are made from a cellulose derivative which contains a radical of a saturated fatty acid containing at least 8 atoms of carbon in the molecule, a solvent, and a resin. Fillers, colouring matters, &c. may be added if desired. Example, 12 parts of cellulose laurate in 23.8 parts of chlorobenzene is mixed with 2.8 parts Dammar resin in 1.9 parts benzene; 29 parts slate dust, 17.8 parts talc and 127 parts lithopone are then stirred in.
Patent GB-510076-A (GB)
Title: Improvements in automatic firearms having a rocking breech-block
IPC: F41A3/32
Filed: 1939-02-13
Abstract: 510,076. Automatic firearms. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. Feb. 13, 1939, No. 4739. Convention date, Feb. 16, 1938. [Classes 92 (ii) and 119] An automatic firearm having a breech-block 3 which is actuated by a carrier 4, the breechblock being rocked into engagement with a locking abutment when the breech-block is in closed position, has the locking abutment formed by providing a cylindrical body 5 with an abutment face 7 and a face 8 which aligns with the face on the casing 9 along which the breech-block slides during recoil. The body is formed with an eccentrically disposed head 6 which engages a corresponding seating in the breech casing to ensure accurate assembly of the body and casing.
Patent GB-355189-A (GB)
Title: Improvements in and relating to methods of making connection in electrical conductors and cables
IPC: H01R43/02
Filed: 1930-02-12
Abstract: 355,189. Welding. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine EJektricitõts Ges.; 2, Friedrich Karl-Ufer, Berlin.) Feb. 12, 1930, No. 4743. Convention date, Feb. 12, 1929. Void [Published under Sect. 91 of the Acts]. [Class 83 (iv).] The conductors 3 of cables I are welded together by employing the principle of the induction furnace, a coil 5 connected to a high frequency resonant circuit being placed around the joint which is thus heated by eddy currents. The circuit may comprise a source of current 8, a spark gap 7, and series condensers 6, or a high-frequency generator and a condenser in parallel with the coil.
Patent GB-575392-A (GB)
Title: Improvements in airframe structures
IPC: B64C3/00
Filed: 1944-03-14
Abstract: 575,392. Aircraft structures. VICKERS -ARMSTRONGS, Ltd., and WALLIS.B.N. March 14, 1944, Nos. 4774/44 and 1754/45. [Class 4] A geodetic airframe structure is so constructed that the axial, shear and torsional loads to which it is subjected are supported entirely by the geodetic bracing members, the structure having no longitudinal booms or spars. The wing structure shown in Figs. 1 and 2 comprises upper and lower frames, each formed from two oppositelyhanded series of geodetic bracing members 10, 10, 10 . . . and 11, 11, 11 ... , the members near the wing root, where the greatest flexural loads occur, being inclined to the generators of the surface at acute angles substantially less than 45 degrees, while those near the tip, where torsional loading due to aileron action is a maximum, are inclined to the generators at less acute angles which may exceed 45 degrees. Distortion of the panels is prevented by diagonal chord members 13. The intersections 12 of the geodesics 10, 11 may be in the form of inter-fitting half-joints as described in Specification 452,726. For the purpose of connecting the upper and lower wing frames, the marginal nodes of each frame are constituted by.brackets 121, Fig. 2, to which the members 10, 11 are attached, the pairs of adjacent brackets being connected to thin vertical plates 14, the ends of which are pivotally connected at 15. Alternatively, the linked plates 14 may be replaced by a continuous vertical plate, the resistance to flexure of which is negligible. The structure described is intended for use in conjunction with a covering material of poor compressive stability, but in the case of a stressed-skin construction, the geodesics 10, 11 are all inclined at the same angle to the surface generators. In the case of a fuselage or tailboom structure, the geodesics extend spirally about the complete periphery of the structure, and except for the joints connecting the ends of abutting lengths of material, extend continuously from end to end of the structure. Specifications 388,438 and 412,232 also are referred to.
Patent GB-780568-A (GB)
Title: Improvements in or relating to diaphragm pumps
IPC: F04B43/067
Filed: 1956-02-16
Abstract: 780,568. Deep well diaphragm pump. PLEUGER, F. W., [trading as PLEUGER & CO.]. Feb. 16, 1956 [Feb. 17, 1955], No. 4903/56. Class 102(1). A deep well pump has a plurality of pistons 7, 71 and cylinder devices each associated with a pressure chamber 13, 13<SP>1</SP> filled with pressure transfer liquid. Each pressure chamber has an associated pumping chamber 15, 15<SP>1</SP> separated from it by a diaphragm 14, 14<SP>1</SP>. Each pumping chamber 15, 15<SP>1</SP> is adapted to draw from the well through a one-way inlet valve 16, 16<SP>1</SP> and deliver to the well riser 18 through a one-way outlet valve 17, 171. The pistons 7, 7<SP>1</SP> are driven in phase opposition by a cam or eccentric 6. The pump may incorporate a liquid filled pressure compensation chamber 19 connected to the pressure chambers 13, 13<SP>1</SP> through non- return valves 21, 21<SP>1</SP>.
Patent GB-1437494-A (GB)
Title: Rotatable peristaltic pump assembly
IPC: A61M1/16
Filed: 1973-09-11
Abstract: 1437494 Peristaltic pumps RHONEPOULENCSA 11 Sept 1973 [12 Sept 1972] 4933/75 Divided out of 1437493 Heading F1F [Also in Division A5] A statorless blood-pump assembly comprises a motor 12 with first and second rotors driving respectively pump "bodies" 6 and 10, the useful internal volume and hence flow-rate of each body varying between minimum and maximum limits proportionally to its inlet blood pressure, the useful volume of body 6 reaching a maximum within the range of atmospheric pressure 0 to -20 mm of mercury and that of body 10 reaching a minimum within the range of atmospheric pressure 0 to +20 mm of mercury. Body 10, with an elliptical crosssection at rest, has a higher useful maximum flowrate and a lower useful minimum flow-rate than body 6, the latter body having a circular crosssection at rest of shorter internal perimeter than body 10.
Patent GB-312336-A (GB)
Title: Improvement in protective circuit for vacuum tubes
IPC: H03F1/54
Filed: 1929-02-14
Abstract: 312,336. Standard Telephones & Cables, Ltd., (Assignees of Schelleng, J. C.). May 26, 1928, [Convention date]. Thermionic amplifiers. - In a high-powered generating installation a protective switch in the plate supply is opened by a relatively inexpensive relay located in the low-voltage filament circuit, and a visual indication is simultaneously given of any particular amplifier which is being over-run. The drawing shows two amplifiers 1, 2 fed in push-pull from a high-frequency source 5. Grid bias is supplied from a source 21 through parallel resistances 22, 23 and filter circuits 24. The safeguarding relays 60, 61 are inserted in the filament-supply circuit fed from a source 16, the windings of the relays being so arranged that they are insensitive to changes in the actual filament current, through any excess in the normal plate current (which flows through the windings in parallel) breaks one or other of the contacts 43, 43<1> and so opens a circuit-breaker 33 on the primary side of a transformer 66 feeding the rectifier 30 which supplies high-tension to the plates of the amplifiers 1, 2. The holding-relay for the circuitbreaker 33 is normally energized from a source 34 through relays 35, 35<1>, which are in series with -the filament relays 60, 61, and are therefore operated when any dangerous increase in plate current takes place. As one or other of the relays 35, 35<1> falls, it energizes a lamp 51, 51<1> to indicate the particular amplifier at fault. The relays 35, 35' are re-set through a push-button 37, source 36, and relay 38.
Patent GB-688480-A (GB)
Title: Navigational radio beacons
IPC: G01S1/02
Filed: 1950-02-27
Abstract: 688,480. Frequency measurement. HOGBEN, H. E., SHEARSTON, C. R., and BUCKING- HAM, J. Feb. 21, 1951 [Feb. 27, 1950], No. 4952/50. Class 37. [Also in Groups XXXV and XL (c)] A frequency discriminator for use in a device maintaining the frequency of a local beacon transmitter at a given small frequency from a received signal (see Group XL (c)) is required to operate over the range 15 c/sec. to 25 c/sec. The input signal is fed to a low-frequency amplifier V4 tuned to 27.5 c/sec. and also to amplifier V5 having negative feedback due to a capacity between grid and anode which produces a rising gain characteristic from 20 c/sec. downwards. Signals from the outputs of amplifier V4 and V5 are fed respectively to one of the diodes of balanced double diode arrangement D3, D4 whose rate of balance signal may be used to control the frequency of oscillator V7 by means of reactance valve V6. Specification 644,637, [Group XL (c)], is referred to.
Patent GB-713526-A (GB)
Title: Improved appliance for securing sweeping brush or broom heads to their stales
IPC: B25G3/24
Filed: 1951-03-01
Abstract: 713,526. Broom handle fixings. WAINWRIGHT, F. March 28, 1952 [March 1, 1951], No. 4969/51. Class 61 A device for securing a broom head 8 to a stale 4 comprises a pair of substantially U- shaped members 1, 2 formed from rod or wire and adjustably clamped together by threaded bolts 9 and wing nuts 10. The closed ends 3 of the U-shaped members are curved to fit the stale, the open ends being bent to form claws which grip the head 8. Each arm 5 is bent round upon itself to form a ring, the bolts 9 being passed through registering rings on the two members. The inner face of the claws may be roughened. The ends 3 may be located in an annular groove or recesses provided in the stale.
Patent GB-202951-A (GB)
Title: Air heaters
IPC: F26B21/00
Filed: 1923-02-20
Abstract: 202,951. Harrison, B. S. Aug. 24, 1922, [Convention date]. Air and gas heating furnaces. - An air heater adapted to maintain a constant flow of fuel gases from the inlet to outlet comprises a furnace portion 2 built up of cast metal plates and fittings, a surrounding oven wall or air flue casing 12, and an outer wall or insulating casing 11. The furnace sections are formed with inner baffles 6 and outer pins 33 and comprise side plates 13, and plates 14 and top and bottom plates 15 and 16 respectively: in order to maintain a constant flow from the inlet 1 to the outlet 7 the sides are joined to converge towards the outlet, diminishing the cross section as the vapours cool. The sections are bolted together, refractory packing material being used between the joints. The surrounding air chamber is provided with an upper inlet 8 and a lower outlet 10, the side passages 9 joining these outlets at the top and bottom. The whole is enclosed in an outer non-conducting casing 11. The inner furnace is lined with refractory plates 18 formed with bevelled abutting edges. Hand holes are provided in the end plate 14 these being normally filled by plugs 23 and cover plates 26 in the outer casing. The furnaces may be provided with two inlet tuyeres and centrally perforated baffles.
Patent GB-932396-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1960-02-12
Abstract: Alloys of the following compositions by weight are used in the manufacture of semi-conductor devices (see Group XXXVI): 50% indium, 50% tin; 10% silver, 90% indium; 5% indium, 95% tin; 99% gold, 1% antimony; 5% gold, 95% lead; 10% silver, 90% tin; 99% tin, 1% arsenic.  Specification 886,725 is referred to.
Patent GB-510970-A (GB)
Title: Improvements in the anti-friction metallising of bearings
IPC: C23C2/08
Filed: 1938-02-18
Abstract: 510,970. Coating with metals. BARBAROU, M. J. B. Feb. 18, 1938, No. 5084. Convention date, Feb. 19, 1937. [Class 82 (ii)] [Also in Group XXII] A process for applying an antifriction metal surface to iron or iron alloys comprises subjecting the surface to a cementation with ferrosilicon so that silicon combines with the surface, subsequently tinning it and finally applying the antifriction metal thereto. The tinning may be effected by immersion or depositing. In an example a bearing is cemented with ferro-silicon for 5-20 hours or more at a temperature about 900C., immersed in hydrochloric acid and then in hydrofluoric acid to remove the silica, immersed in zinc chloride solution, tinned by dipping at 350C. ; and finally anti-friction metal is applied.
Patent GB-1336543-A (GB)
Title: Model railway switch assembly
IPC: A63H19/32
Filed: 1972-02-03
Abstract: 1336543 Model railway points C K EDWARDS and L D EDWARDS 3 Feb 1972 [29 July 1971] 5145/72 Heading A6S  To ensure electrical connection between the movable rails 24, 26, Fig. 2, of model railway points and the main lines 16, 20; 18, 23, respectively, according to the direction in which they are set by turning about a fixed pivot 30, either the movable rails 24, 26 are themselves resilient and yield as their ends engage the main lines, or alternatively the pivot connection 62, &c, Fig. 6, embodies a spring 82 to bias the rails 24a, 26a, which are relatively movable, towards each other. The points are operated by selective energization of solenoids 36, 38, Fig. 2, to slide an armature rod 40 and turn a bellcrank 44 about its pivot 46, thus sliding a link 54 having a pivot connection 56 to an H-member 32 secured to the ends of the movable rails 24, 26; an over-centre tension spring (58), Fig. 3 (not shown), below the bellcrank 44 and connected between one end 50 of the latter and a fixed point, biasses the bellcrank and the rails 24, 26 one way or the other, into firm electrical connection with the main lines 16, &c. In the alternative embodiment, the spring 82, Figs. 6, 7, engages over two fingers 78, 80 of similar plates 70, 72 secured to the two movable rails 24a, 26a, and biasses these rails towards each other. A fixed pivot 62, secured by a screw 64 to the main frame of the points, passes through slots 66, 68 in the plates 70, 72, allowing relative movement between the rails 24a, 26a.
Patent GB-742662-A (GB)
Title: Extrusion apparatus
Inventor: MAGERKURTH WILHELM ADOLPH
IPC: B29C48/395
Filed: 1953-02-24
Abstract: 742,662. Mixing appliances. NATIONAL RUBBER MACHINERY CO. Feb. 24, 1953, No. 5195/53. Class 86. [Also in Group V] Within a stationary extrusion cylinder 3, Fig. 1, which is internally helically ribbed, rotates an externally continuously ribbed feed screw 2. The ribs on the cylinder are, over at least a major portion of the total ribbing of the cylinder, of the same hand as the ribs on the screw : as shown the whole of both sets of ribs is right-hand. The cylinder is formed, for a minor portion of its length, with ribless grooves 21. The screw urges material to the left, but the material tends to travel to the right between the ribs of the cylinder, whereby a mixing effect is obtained, and the grooves 21 constitute mixing chambers. As shown, the cylinder ribs are formed on a liner 3a bolted to the cylinder 3, but 3 and 3a may be integral. The cylinder is heated or cooled by medium in a helical groove 10 which is closed by a sleeve 9. The temperature of the hopper 6 is controlled by medium in chamber 7. At the forward end of the screw the ribs 18 are duplicated. In modifications : (1), Fig. 4 (not shown), the liner 3a is in two abutting sections, one or both having grooves 21. (2), Fig. 5, the liner is in two abutting sections 27, 36, section 27 having right hand ribs and section 36 right-hand (or left-hand) ribs 40 and left-hand (or right-hand) ribs 39. Two grooves 37, 38 are formed in section 36. (3), Fig. 6 (not shown). This is similar to the Fig. 5 modification except that both lots of ribbing 39 are shown as left-hand: but they may be right-hand. The groove 38 may be in section 27. The grooved parts may be in the form of separate pieces keyed to ribbed sections. (4), Fig. 7, the liner is in three sections, 56, 58, 57, section 58 being keyed to 56 at 60. Sections 56 and 57 are right-hand and section 58 is right-hand or, as shown, left-hand. Grooves 59 are provided as shown in section 58 but may be in one or both of the other sections.
Patent GB-596443-A (GB)
Title: Improvements in cloth guiding devices
IPC: B65H23/038
Filed: 1945-03-02
Abstract: 596,443. Feeding webs. TOOTAL BROADHURST LEE CO., Ltd., and NIELD, L. C. March 2, 1945, No. 5206. [Class 100 (i)] A device for guiding webs transversely to a stentering or like machine of the kind described in Specification 542,323 in which narrow guide rollers 8, Fig, 3, engaging the edges of the web 1 are mounted in bearings carried by a vertical pivot 12 which is caused to rotate in order to correct web deviations under control of a feeler 25 arranged to engage the edge of.the web just prior to passing around a guide roller 8, is so constructed that the rollers 8 engage the web by friction only. The surface 9 of the rollers may may be of metal such as used for carding cloth, fibre bristles, felt, rubber, emery cloth, synthetic resin or moulded plastic. The web may be pressed against the rollers 8 by a series of small rollers or as shown in Fig. 6, the rollers 8 may be replaced by a friction band 37 mounted on rollers 38 carried by a frame 41 which is swivelled about a.pivot 42 controlled similarly to the pivot 12. A friction band 39 presses the web into contact with the band 37. The web is finally fed by a wheel 31 with pins which are projected by a cam to transfer the web to the stentering chains, which may be driven at a slower speed than the feed of the web.
Patent GB-739944-A (GB)
Title: New derivatives of colchicoside and process for their preparation
Filed: 1954-02-23
Abstract: The invention comprises colchicoside amides of the formula <FORM:0739944/IV (b)/1> where R is hydrogen, alkyl, hydroxyalkyl or aralkyl and R1 is hydrogen, alkyl, hydroxyalkyl, aralkyl, amino or arylamino, or R and R1 together form a saturated ring with the nitrogen atom.  These are made by treating colchicoside with HNRR1, preferably in a solvent such as water, anhydrous or aqueous alcohol, or an excess of the amine reactant.  In the examples the following are prepared: colchicosamide (R = R1 = H in above formula), N - methylcolchicosamide, N - ethyl - colchicosamide, N-propyl - colchicosamide, N - n - butyl - colchicosamide, N - n - amyl - colchicosamide, N - n - hexyl - colchicosamide, N : N - dimethylcolchicosamide, N : N - diethyl - colchicosamide, N - (b  - hydroxyethyl) - colchicosamide, N : N - di - (b  - hydroxyethyl) - colchicosamide, colchicoside hydrazide, colchicoside b  - phenylhydrazide, N - benzyl - colchicosamide, N-benzhydryl - colchicosamide, N - (b  - phenylisopropyl) - colchicosamide and colchicoside piperidide.  Specification 732,265 is referred to. p ALSO:Compositions for the modification of mitosis and the creation of polyploids comprise colchicoside amides of the formula <FORM:0739944/I/1> in a solvent or on a carrier; R is hydrogen, alkyl, hydroxyalkyl or aralkyl and R1 is hydrogen, alkyl, hydroxyalkyl, aralkyl, amino or arylamino, or R and R1 together form a saturated ring with the nitrogen atom.
Patent GB-114432-A (GB)
Title: Improvements in or relating to Lamp Holders for Incandescent Electric Lamps.
Inventor: DELANNE LOUIS CONSTANT DESIRE
IPC: H01R33/955
Filed: 1918-03-26
Abstract: 114,432. Delanne, L. C. D. March 19, 1917, [Convention date]. Holders with switches. A screw f, which may be provided with an external milled head f<1>, carries a non-conducting disk fitted with a metal rim f<3>. A flat edge of the rim can engage non- elastic contacts, consisting nf a terminal post b and a plain post d, connected below the insulating base a by a metal strip with one contact-plunger. The other plunger-carrier is integral with the second terminal c.