baber/WOPTO huggingface dataset:
Patent GB-334256-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J19/38
Filed: 1929-05-31
Abstract: 334,256. Robinson, E. Y., and Associated Electrical Industries, Ltd. May 31, 1929. Vacuum tubes. - Shields for reducing the capacity between the anode and the lead to the control grid of screened grid valves, comprise a transverse part 6 carrying a skirt 8 capable, of fitting closely within, and so adjusting itself to inequalities in, a tubular or other part of the bulb. The part 6 may be made rigid by a flange 7 or by ribs or grooves pressed therein and the skirt may be of thin nickel sheet. To facilitate the insertion of the electrode structure and to reduce induced currents, the skirt may be slit as at 4 with a tie 10 initially crossing the slit. After mounting the electrodes and evacuating the tube but prior to sealing off, the link 10 is cut through, or is fused or volatilized by high-frequency currents induced in the skirt and tie, and the skirt then expands outwards, by its own resilience or by a molybdenum spring, towards or against the tubular part 15 of the bulb. The tie 10 may be a nickel wire or may be of " gettering " material such a.s magnesium or aluminium. The corners 9 of the skirt are folded to prevent touching. The skirt may have one slit and be secured to the part 6 at one point diametrically opposite the slit, and the part 6 may have a bulbous projection at this point. In other forms, a skirt in the form of a complete tube is secured to the part 6 at three equidistant points, or three separate pieces are secured to the part 6 to form a, sliirt with three slits. The anode 2 surrounds the screening grid 3 above the part 6.
Patent GB-293191-A (GB)
Title: Improvements in or relating to screws
IPC: F16B25/00
Filed: 1927-06-24
Abstract: 293,191. Arenz, J. A. June 24, 1927. Turning wood-screws.-In a lathe for cutting double threads in wood-screws the point is first cut by a cutter 35 mounted on a carriage 34, cutting dies 33 mounted on levers 40 pivoted to the carriage being held away from the work by a spring 39. On withdrawal of the carriage the dies 33, which make progressively deeper cuts, are brought into contact with the work by inclined surfaces 42. The threads are continued to the point by means of further inclined surfaces 44.
Patent GB-815494-A (GB)
Title: Improvements in two stroke cycle internal combustion engines
IPC: F02B37/00
Filed: 1956-06-01
Abstract: 815,494. Air compressors. CROSSLEY BROS. Ltd., and CARTER, H. D. June 25, 1957 [June 1, 1956], No. 16957/56. Class 8(1). [Also in Group XXVII] Exhaust gases from the or each cylinder b, Fig. 4, of a two-stroke I.C. engine directly actuate a piston or pistons h, o pumping air to the cylinder b directly or via an inlet manifold. A mechanically actuated valve e temporarily interrupts communication with the exhaust manifold at the time of discharge from the cylinder b to cause the exhaust gases to drive back a piston extension g, a further piston extension k in a "bounce" cylinder m returning the piston or pistons h, o, possibly to assist supercharging by returning to the cylinder b compressed air which has passed out of the exhaust port d. In modifications, (1) the piston extension g is dispensed with, the exhaust gases acting directly on a single-acting piston h, which may have a double-acting piston o associated therewith, (2) the piston extension k is dispensed with, the piston h, or o if provided, being single-acting and itself working in a "bounce" cylinder, (3) the valve e is dispensed with, the extension g controlling communication with the exhaust manifold f and (4) the "bounce" cylinder is dispensed with, single pistons h, with or without extensions g and operated from alternately exhausting cylinders b, being connected to opposite ends of a centrally pivoted lever.
Patent GB-110437-A (GB)
Title: Improvements in Nose Bags and Coal Sacks.
Inventor: GAME ALBERT
IPC: A01K5/00
Filed: 1916-11-28
Abstract: 110,437. Game, A. Nov. 28, 1916. Nosebags.-The bottom of the bag is formed by an oval piece of galvanized iron b which is secured to the material a of the bag by bifurcated rivets c which pass also through an inside disk of leather. Coal sacks may be similarly formed.
Patent GB-1380649-A (GB)
Title: Apparatus for distance measurement
IPC: G01S17/14
Filed: 1972-04-13
Abstract: 1380649 Range-finding IMMATRA AG 13 April 1972 [28 April 1971] 17038/72 Heading H4D A method of range finding involves varying the transmitted pulse to bring the received pulse amplitude to a predetermined level and thereafter measuring the time interval between the instant of transmission and the instant that the received pulse amplitude achieves a reference level. Generator TIG produces a timing pulse T 1 which triggers an amplitude controlled generator SIG. This pulses GaAs laser LD to emit a pulse which is reflected by object O on to avalanche diode detector PD. The resultant pulse is amplified at AV and passes to a timing unit ZM which is also triggered by the timing pulse generator. The amplitude of the received pulse is detected by AM and compared to the predetermined magnitude. The output of comparator V controls unit R to pass a D.C. voltage to transmitter generator SIG to adjust the transmitted pulse amplitude such that the received pulse will be of the required amplitude. If the transmitter reaches maximum output without producing a large enough received pulse R also provides a voltage to increase the detector sensitivity. An adjustment to the range measurement is formed by correction unit KE when the received pulse is below the required amplitude. Output A is used for automatic focusing and output OA is derived from the initial received pulse amplitude and target range to indicate reflectivity of the object.
Patent GB-301885-A (GB)
Title: Improvements in and connected with joint-making packings
IPC: F16J15/12
Filed: 1928-06-13
Abstract: 301,885. Tschakert, R. Dec. 8, 1927, [Convention date]. Joint-making packing. - Packing of the type comprising a washer of plastic material, such as asbestos paste, with a metallic reinforcement, is made from cord, formed in an extruding machine and comprising plastic material 1, Fig. 1, braided or otherwise covered with wire 3 and having a wire core 2, which may have a non- metallic covering. A length of the cord is bent into ring form and the ends of the core 2 and also the ends of the covering 3 are spliced together. The ring is then flattened in a press, Fig. 1 (Cancelled), comprising male and female dies 4, 1. The Specification as open to inspection under Sec. 91 (3) (a) states that the core of the packing may consist of asbestos, jute or cotton threads, with or without fine wire, and describes a modification in which a washer is formed by winding a composite thread into a spiral 8, Fig. 5 (Cancelled), and compressing it between plastic washers 9, 10. This subject-matter does not appear in the Specification as accepted.
Patent GB-819764-A (GB)
Title: Improvements in compression ignition engines
Inventor: HALLEWELL GEORGE
IPC: F02B7/06
Filed: 1957-05-29
Abstract: 819,764. Dual fuel engines. BLACKSTONE & CO. Ltd. May 29, 1958 [May 29, 1957], No. 17099/57. Classes 7(2) and 7(6) A dual-fuel compression ignition engine comprises a first camshaft 1, Fig. 1, operating the inlet and exhaust valves and the main fuel injection pumps 5 for operation on liquid fuel, a second camshaft 9 for operating subsidiary inlet valves 13, Fig. 2, and pilot fuel injection pumps 12 for operation on gas with pilot fuel injection, and changeover means by which the manifold 14 leading to the valves 13 is alternatively supplied with compressed air for starting or with gaseous fuel and the fuel is supplied either from the main pumps 5 or the pilot pumps 12. At starting the manifold 14 is supplied with compressed air, a valve 21 being opened, and the control means are set for operation on fuel-injection from the pumps 5 controlled by the engine governor. On changeover to gaseous fuel a control valve 20 is opened to supply gaseous fuel to the manifold 14, the control racks of the pumps 5 are set to cut-off, the pilot pumps 12 are brought into operation and butterfly control valves 18, 19, in the air intake and gas manifolds 17, 14, are connected to the engine governor. The changeover may be effected by servomotors from a control unit 23. The camshaft 9 is driven through an intermediate shaft 8 from the camshaft 1.
Patent GB-1006509-A (GB)
Title: Improvements in or relating to screw threaded fasteners and drivers for use therewith
IPC: B25B15/00
Filed: 1962-05-04
Abstract: 1,006,509. Making screws. G.K.N. SCREW & FASTENERS Ltd. May 4, 1962 [May 26, 1961], No. 17122/62. Heading B3H. [Also in Divisions B4 and F2] To form a screwhead (see Division F2), by a cold heading operation on wire material, a first punch enlarges the wire end and then a heading punch 34 forms the head and its cruciform recess. A nib projecting from the headforming cavity 36 has four wings 39 for forming the grooves of the screwhead, and the side faces of the wings (when the nib is vertical) are vertical or the faces 46 are undercut as shown making an angle of 20 minutes to the vertical and the faces 47 are oppositely sloped up to 3 degrees to the vertical. To counteract the falling away, from the punch faces, of the screwhead metal, V-sectioned ribs 40 with ridge-extensions 41 are formed on the nib between the wings 39 and these displace the screwhead metal towards the grooves formed by the wings. Instead of ridge-extensions 41, the nib may have projections of annulussegment form, describing a broken annulus, concentric with the nib axis and extending between the wings 39 beyond the ribs 40 but not contacting either.
Patent GB-1036438-A (GB)
Title: Improvements in underground mining machines
Inventor: SHUTTLEWORTH PETER
IPC: E21D9/10
Filed: 1962-05-04
Abstract: 1,036,438. Underground heading machine; mine arch-setting apparatus. COAL INDUSTRY (PATENTS) Ltd. May 3, 1963 [May 4, 1962], No. 17283/62. Headings E1E and E1F. In an underground heading machine having a rotary cutter head mounted at the free end of a boom 10 so mounted on a supporting carriage 6 as to be movable about two axes at right angles there is provided in the carriage a longitudinally extending passage 22 through which a roadway conveyer 2 may extend if required during heading operations. The arm is mounted in a yoke 14 by trunnions 9a disposed at right angles to the axis of rotation of the yoke on a plate transversely slidable in the framework 5 of the crawler mounted carriage. Pivotally mounted at the front of the carriage is a wedge shaped loading ramp on the inclined surface of which is mounted an endless loader and cutter chain by which mined mineral is carried across the ramp to be transferred by a paddle wheel 20 to a rearwardly extending conveyer positioned at the side of the carriage. For handling of mine arches there is provided on the boom 10 a fixed ring 23 and an axially movable ring 24. The facing sides of the ring provided with interengageable projections that can grip an I-section girder when brought together by jacks 25 acting on the ring 24.
Patent GB-1495323-A (GB)
Title: Ball bearings
IPC: F16C27/06
Filed: 1975-04-25
Abstract: 1495323 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 25 April 1975 [26 April 1974] 17322/75 Heading F2A A ball bearing comprises inner and outer races 2, 3, each being provided with a pair of axially spaced raceway wires 4, 5, and a resilient pad 9 mounted on that surface of at least one of the races which is remote from the raceway, the or each pad being provided with a series of circumferentially spaced radial projections 18 which engage in corresponding apertures 17 provided in the race to locate the pad thereon and axially space the pair of wires of that race. The pad is of rubber or plastics, and one end 14 may be extended radially to form a seal (Fig. 2, not shown). The pad may be provided with a series of circumferentially spaced axially extending recesses 10, closed at each end by annular lips 11, 12.
Patent GB-642286-A (GB)
Title: Improvements in and relating to the manufacture of isoquinoline derivatives
IPC: C07D217/20
Filed: 1948-06-28
Abstract: Isoquinoline derivatives of the formula <FORM:0642286/IV (b)/1> are obtained by heating an amidine of the formula <FORM:0642286/IV (b)/2> or a salt thereof with an oxide, oxyhalide or halide of phosphorus; R represents an alkyl, aryl, aralkyl or heterocyclic group which may be substituted by a group or groups not deleteriously affected under the conditions of the reaction by the condensing agent; X and X1 denote that the aromatic rings may be substituted by a group or groups, similarly not affected, in positions 5, 6, 7, 8 and 2, 3, 4, 5 (but not 6) respectively. The reaction is preferably carried out in an inert solvent such as nitrobenzene or xylene.  The products may be converted into salts and quaternary salts, and are therapeutic agents or intermediates therefor.  Examples show the production 1 - phenyl-, 1 - benzyl-, 1 - p - methylsulphonyl-phenyl-, 1 - p - methoxyphenyl, 1 - (3 - pyridyl)-, 1 - phenyl - 6 : 7-dimethoxy- and 1-n-amyl-3 : 4-dihydro-isoquinolines and their salts.  Amidines of the above formula and their salts are obtained from amines of the formula <FORM:0642286/IV (b)/3> and nitriles RCN in the presence of aluminium chloride.  The following are thus prepared: N - (b  - phenylethyl)-, N - (b  - phenylethyl) - p-methylsulphonyl-, N - (b  - phenylethyl) - p - methoxy- and N - (b -(3 : 4-dimethoxyphenyl) - ethyl) benzamidinium chlorides, N-(b -phenylethyl)-phenylacetamidinium chloride, N - (b  - phenyl - ethyl)-nicotinamidine and N-(b -phenylethyl)-capramidinium benzene sulphonate.
Patent GB-514929-A (GB)
Title: Process for the production of mono-vinyl acetylene
IPC: C07C2/38
Filed: 1938-06-11
Abstract: 514,929. Vinylacetylene. POTTS, H. E. (Consortium fur Elektrochemische Industrie Ges.). June 11, 1938, No. 17363. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 12, 1938.] [Class 2 (iii)] Monovinylacetylene is produced by contacting acetylene, pure or together with inert diluent gases, with a catalyst containing alkali metal hydroxide. It may also contain alkaline earth, rare earth or iron oxides, carbides of the alkali or alkaline earth metals or substances with large effective surfaces. Reaction temperatures are generally below 300‹ C. The catalyst may be activated by a preliminary heating. The reaction may be effected in a liquid medium such as paraffin, petroleum fractions, acetols and ethers, excess heat being removed, for example, by cooling or addition of steam or inert gases. The product can be separated from residual acetylene by cooling or washing with selective solvents. In examples : (1) acetylene is led over soda-lime at 250‹C.; (2) calcium oxide, iron hydroxide, sodium hydroxide, and water are mixed to a paste, dried at 500-800‹ C., dispersed in paraffin oil, and acetylene led through at 180-280‹ C. ; (3) magnesium 'oxide is mixed with iron hydroxide, ignited at 700‹ C., made into a paste with sodium and potassium hydroxides and water, moulded, and dried at 700‹ C. The product is heated to 200‹ C. and acetylene led thereover. Specification 359,421 is referred to. The Specification as open to inspection under Sect. 91 comprises the use of any of the following substances as catalyst :-caustic alkalis, alkaline earths, their carbides, rare earths, and iron or aluminium or their oxides. Increased or reduced pressures may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-472931-A (GB)
Title: Improved portable canopy or tent constructions
IPC: E04H15/38
Filed: 1936-06-23
Abstract: 472,931. Mounting posts in sockets. FISHER, E. H. June 23, 1936, No. 17373. Convention date, July 10, 1935. [Class 45] [Also in Group X] The Specification as open to inspection under Sect. 91 describes a tent-pole socket 66 which has a pointed end and wings 69 whereby it may be driven into the ground by foot pressure. This subjectmatter does not appear in the Specification as accepted.
Patent GB-146212-A (GB)
Title: Improvements in or relating to cellulose ester compositions
IPC: C08L1/12
Filed: 1920-06-26
Abstract: A composition for use as a coating-material, or in the manufacture of artificial silk or of films, or as a varnish, and which can be cast or moulded, consists of cellulose acetate and the aggregate of fatty acids extracted from coconut oil.  A volatile solvent such as chloroform, acetone, acetylene tetrachloride, or chloroform and alcohol, is used in the manufacture of the composition; and the proportions of solvent and of fatty acid are varied according to the purpose for which the composition is to be employed.
Patent GB-259305-A (GB)
Title: Improvements in apparatus for the automatic charging, conveying, and discharging of materials
IPC: B66B17/26
Filed: 1925-07-08
Abstract: 259,305. Ellson, B. E. July 8, 1925. Rope railways ; systems ; buffer stops. - A power-driven conveying skip K which moves to and fro on the track X is stopped at the loading station Y and is started automatically by the weight of the load which depresses a pivoted track section, or a pivoted frame on the skip carriage, and moves a switch or a lever controlling the driving gear. The movement may also be reversed automatically at the discharging station. As shown in Fig. 3, a pivoted track-section A<2> is supported by a spring U, or the spring may be replaced by a counterweighted lever. The carriage is moved to and fro by a motordriven winch controlled by a switch L<2> or by the gearing described in Specification 254,025. An auxiliary switch may be provided to stop the skip at the loading position until reversal is effected by the weight of the load. The skip is filled from a hopper Q, the door R being opened by the engagement of the skip with a lever S, and closed by a weight T. Gravity railways ; buffer stops. - The Provisional Specification describes a. gravity runway, above or below ground level, on which the movements of the skip are controlled by means of a pivoted track section or carriage frame, the skip being retained at the loading station by a stop, and moving downwards under the weight of the load so as to escape from the stop when loaded.
Patent GB-680851-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/30
Filed: 1950-07-14
Abstract: 680,851. Friction type shock absorbers. ADAMS, G. W. July 18, 1951 [July 14, 1950], No. 17630/50. Class 108(iii). A friction-type shock-absorber comprises a cylindrical rotor L within a cylindrical chamber C and a plastic non-corrosive filling O of doughlike consistency whereby pressure is applied to friction faces H, H<1> on the chamber and rotor. The filling 0 may contain calcium carbonate, calcium hydroxide, calcium stearate, and glycerine. Pressure of the filling O may be adjusted by means of a grub-screw N acting on a plug V. Alternatively (Fig. 1 not shown), plug V may be dispensed with, the grub-screw N acting directly on the composition. A fibre or other friction disc R may be disposed between the faces H, H<1>. Friction may also be developed between the filling O and the peripheral surfaces of the rotor L and/or the body A. The latter surfaces may be smooth or may be formed with right- or left-handed helical grooves of part-circular cross-section. On assembly of the shock-absorber, the filling may be applied manually (with an end-plate D removed), or by means of a grease gun and nipple (not shown). Air pockets may be removed by relative rotation of the chamber C and rotor L by mounting the shock-absorber in a lathe. Suitable dimensions of the shockabsorber are given.
Patent GB-644033-A (GB)
Title: Improvements in driving gear for machines
IPC: G05G15/04
Filed: 1947-07-04
Abstract: 644,033. One-revolution clutches. FORD R. M. July 4, 1947, No.. 17640. [Class 80(ii)] A machine, such as a duplicator or other office appliance, is driven through a onerevolution clutch 17,.arranged as a separate self-contained unit in a casing having aligned input and output shafts 13, 14, coupled respectively to a driving motor and to the driven shaft of the machine, as by a pulley 15 and sprocket 16. The clutch comprises facially-toothed members, one, 17, pinned to the input shaft 13, the other 21, axially slidable and freely mounted on the input or output shaft and connected for rotation with the output shaft 14 by a pair of facial teeth 20, permanently and slidably engaging slots in a collar 18 pinned to the shaft 14. The clutch is automatically disengaged at the end of a revolution, against a spring 31 by a pivoted stop-member 42 having two-fingers, one of which has a cam-incline 45, which rides up an incline 25 on the driver clutch-member 21 to slide it axially out of engagement with the driving member 17 whilst the other finger 44, at the same time, positively stops the driven shaft 14 by abutment on a radial shoulder 27 on the driven-shaft collar 18. The machine is started by operating a hand- or foot-lever which, through a cable, turns a lever 47, Fig. 5, which, through an arm 50, turns a spindle 41 rigidly carrying the stop-member 42, which is thereby lifted away from the clutch-member 21 to allow the spring 31 to engage the clutch 17, 21 through a fork 29 fast on a sliding spindle 30. A spring-loaded nose 49 on the lever 47 permits the return movement of the lever 47, by a spring 51, to be without effect. The clutch is permanently disengaged by operating a lever 52 to thrown a spring- connected lever 38 over its dead-centre, to strike one end of a lever 37, the opposite end of which depresses the clutch-fork spindle to disengage the clutch.
Patent GB-202466-A (GB)
Title: Improvements in and relating to appliances for use in drying garments
IPC: D06F59/02
Filed: 1922-06-28
Abstract: 202,466. Strathern, A. G., and Neilson, R. M. June 28, 1922. Shaping and stretching garments upon internal frames.-A collapsable clothes drying frame comprises a body part formed of hinged or telescopically connected sections b, g, and extensible arms l formed with eyes k adapted to slide upon members d, j carried by the body part.
Patent GB-595977-A (GB)
Title: Improvements in or relating to gas heated steam and hot water vessels
IPC: F24H1/18
Filed: 1945-07-12
Abstract: 595,977. Water boilers. ATKINSON, C. W., and ECLIPSE COPPER CO. OF YORK, Ltd. July 12, 1945, No. 17797. [Class 64 (i)] [Also in Group XVII] Gas-heated hot-water vessels are made with a hole 4 in the bottom, covered by a plate 5 which may be dished, and is readily replaceable when corroded through by the gas flame &c. and which is tightened by bolts 6 against an asbestos washer 8. The ring 7 may be welded on.
Patent GB-561600-A (GB)
Title: Improvements in or relating to cleaners for tobacco pipes
IPC: A24F3/02
Filed: 1942-12-15
Abstract: 561,600. Tobacco. pipes. ANGER, G. Dec. 15, 1942, No. 17844. [Class 130] A cleaner adapted to lie in the bore of a pipe during smoking is formed as a loop with bowed sides la made from spring wire bent on itself, the free ends being joined at 3 by twisting and an eye 4 being formed within the twisted length, which lies axially of the cleaner. The eye is adapted to receive a length of wool for cleaning purposes.