baber/WOPTO huggingface dataset:
Patent GB-1158950-A (GB)
Title: Drill Grinding Machine.
Inventor: LEE RONALD WILLIAM ARTHUR
IPC: B24B3/24
Filed: 1967-05-04
Abstract: 1,158,950. Grinding twist drills. R. W. A. LEE. 26 April, 1968 [4 May, 1967], No. 20760/67. Heading B3D. A drill grinding machine comprises means 58 mounted on a bed 10 for holding a drill 60 to be ground, and a grinding wheel 25 which rotates about an axis inclined to the axis of the drill and effects an orbital movement during the grinding operation about the output shaft 20 of a motor driving the grinding wheel. The motor is mounted on a frame 11 which is adjustable about pivots 12, 13 on the bed 10 by a screw device 17. The output shaft 20 of the motor is connected by a belt drive 22 to a shaft 24 which is mounted in a housing 28 and carries the grinding wheel 25 which may have a conical or curved form. The housing 28 is mounted on a swivel pin 30 in a block 19 secured to the frame 11 with the swivel pin coaxial with the output shaft 20 of the motor. A handle 32 is provided for rocking the grinding wheel about the pin 30. The drill 60 to be ground is mounted in an eight-jaw chuck 58 on a spindle 48 which can be indexed into selected angular positions by engagement of a pin 52 in a block 47 with holes in a collar 50 on the spindle. The block is adjustable axially and transversely of the drill axis by movement of slides 42, 39 on a support block 34 which, in turn, is adjustable about a pivot 35 on a sloping surface 33 of the bed 10. Rocking of the housing 28 may actuate a cylinder to spray liquid on to the grinding wheel.
Patent GB-188377-A (GB)
Title: Improvements in percussion fuses for projectiles
IPC: F42C15/30
Filed: 1921-08-04
Abstract: 188,377. Armstrong, Whitworth, & Co., Sir W. G., and Taylor, H. G. Aug. 4, 1921. Projectile fuzes.-Relates to delay-action percussion base fuzes of the kind in which two pellets, one carrying the needle and the other the detonator, are kept apart during retardation due to impact and penetration, and are brought together to fire the fuse after such retardation. According to the invention, the pellets B, D, Fig. 1, are kept apart by springs F which are attached to the pellet D and are confined behind a shoulder on the pellet B by a bush G screwed into the body A of the fuse. When the projectile is discharged from a gun, the pressure of the propelling gases drives a piston H inwards, releasing plugs B<3>, D<3>, so that during, flight. radial bolts B<1>, D<1> may move under centrifugal force out cf recesses B<2>, D<2>, and thereby unlock the pellets B, D. On impact, the pellets move forward together, compressing a spring I. The return of the pellet D is prevented by a spring catch K snapping into the recess D<2>; the pellet B on the other hand is freed by the springs F opening cut in the space beyond the bush G. When retardation ceases, after the projectile has passed through the armour plate, the compressed spring I throws the pellet B back, thrusting the pin C on to the detonator E, Fig. 3. The flash from the detonator is transmitted through passages L, M to powder pellets N leading to the burster charge O.
Patent GB-153702-A (GB)
Title: Improvements in and relating to the receiving and discharging apparatus of pneumaticconveyors
IPC: B65G53/60
Filed: 1919-08-25
Abstract: 153,702. Hay, W. G. Aug. 25, 1919. Density separators.-Relates to the receiving and discharging apparatus of pneumatic conveyers. The receiver 1 is mounted near the top of a framework (not shown), the grain &c. carried by the stream of air from the conveyer pipe entering the upper part of the receiver through a tangential pipe so that a large part of the suspended material is centrifugally separated from the air as it passes downwards to the open lower end of an inner chamber containing filters 13. The material still in suspension is separated from the air as it passes through the receiver to the exhaust passage 16 by means of filters 13, two sets of which are provided and used alternately. The material passes from the receiver outlet through a valve and' flexible pipe to a discharge chamber.
Patent GB-601319-A (GB)
Title: A closure for a preserving jar
IPC: B65D45/28
Filed: 1945-08-13
Abstract: 601,319. Vacuum closures. BLONDEL, F. L. Aug. 13, 1945, No. 20809. Convention date, July 18, 1944. [Class 125(iii)] A vacuum closure for a preserving jar, of the type in which a yielding packing is compressed against a bearing surface by the lower edge of the lid, is characterised in that the packing comprises a rubber ring 3 other than the conventional flat ring, and preferably of round cross-section, located between two parallel annular surfaces 10, 11 rigid with the jar 1 and lid 5 respectively, at least one of said surfaces being formed with a series of stops 9 whereby the expansion of rings 3 is limited. As shown, surfaces 10 and 11 are plane and may be rough cast, surface 10 alone carries projections 9 around its periphery, and surface 11 constitutes the top face of a flange 2, the lower side of which is engaged by the usual spring clip 6 during sterilisation. The round-section packing ring 3 is provided with an outstanding lug which can be pulled to deform the packing and destroy the vacuum. Surfaces 10, 11 instead of being plane, may be similarly oblique, concave or convex, provided they are milled instead of rough cast. The packing ring may alternatively have an oval or polygonal cross-section.
Patent GB-740417-A (GB)
Title: Improvements in or relating to high stability transistor oscillators
IPC: H03B5/12
Filed: 1953-07-27
Abstract: 740,417. Transistor generating circuits. MOULON, J. M. July 27, 1953 [March 28, 1953], No. 20812/53. Class 40 (6). An oscillator comprising two transformer coupled transistor stages 1, 2 is arranged with a phase-inverting output transformer 13 feeding a series resonant circuit 17, 18 connected to the emitter of the first transistor. A negative feedback circuit 9, 12 couples the collector of transistor 2 to the emitter of transistor 1. The output from phase-inverting transformer 3 is arranged to drive transistor 2 beyond cut-off, a negative bias being built up across resistor 7 and capacitor 8 which tends to stabilize the amplitude of the oscillations fed out over winding 20. Transistor 1 is supplied with power over resistor 7. It is stated that the variation of frequency with temperature may be minimized by employing an inductor 17 having a positive temperature coefficient. The D.C. resistance is made greater than the sum of the resistances of the secondary of transformer 13 and the input resistance of transistor 1.
Patent GB-794638-A (GB)
Title: Improvements in or relating to luminescent materials and screens
IPC: C09K11/74
Filed: 1956-07-05
Abstract: 794,638. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 5, 1956 [July 8, 1955], No. 20862/56. Drawings to Specification. Class 39(1). A red-luminescing material, particularly for a screen for use in a C.R.T. for flying-spot scanning of films and diapositives, comprises bismuth-activated calcium-magnesium silicate in which the ratios in atoms of the individual elements to the sum of the atoms of calcium, magnesium and silicon are, for calcium, between 0À2 and 0À3 for magnesium, between 0À2 and 0À3, for silicon, between 0À5 and 0À6, and for bismuth, between 0À001 and 0À1. The material is made by firing for 2 to 6 hours at a temperature of 1100‹C to 1200‹C in an oxidizing atmosphere, a mixture of the oxides of calcium, magnesium, silicon and bismuth or compounds of these elements, such as carbonates and nitrates, from which the oxides are produced by heating.
Patent GB-943819-A (GB)
Title: A wide dynamic range amplifier and detector system
IPC: G01S7/00
Filed: 1962-05-30
Abstract: 943,819. Amplifier-detector circuits; pulse radar. BENDIX CORPORATION. May 30, 1962 [June 7, 1961], No. 20870/62. Headings H3Q and H4D. A wide amplitude range amplifier and detector, more particularly for a radar system, comprises a cascade of tuned amplifier stages each having its output coupled to a combining unit through a respective detector and video amplifier circuit, the gain of each video amplifier except the last having a value substantially equal to the total gain of the tuned amplifier following the junction point with the detector. Fig. 3 shows a pulse radar receiver in which the radar signal from 31 passes through an I.F. pre-amplifier 33 to a cascade of I.F. amplifiers 35, 36, 37. Amplifier 37 is connected through a detector 38 and a fast time constant circuit 39 to a combining unit 41 while stages 36, 35 and 33 are connected to individual detectors, fast time constant circuits (F.T.C.) and video amplifier stages to the combining circuit 41. The I.F. amplifiers are arranged so that for the weakest received signal detector 48 will operate linearly and provide the output signal from the combining circuit 41. Signals above a predetermined level will cause the I.F. stage 37 to saturate but the signal from stage 36 is sufficient to operate detector 43 and as the video stage 45 has a gain equal to the normal gain of stage 37 this detector now provides the output from the combining unit. For increasing signals, I.F. stages 36 and 35 successively saturate and as video stage 49 has a gain equal to I.F. stages 36 and 37 combined, and video stage 53 has a gain equal to stages 35, 36 and 37 combined, these last two channels successively provide the outputs from the combining unit so that over the very wide range of input signals a linear output is obtained. The combining unit 41 preferably selects the largest of the signals. Fig. 5a shows the signal after detection from a stage saturated by a long " clutter " pulse and b shows the corresponding signal from a non-saturated stage. Figs. 5c and 5d show the corresponding outputs resulting from the action of the fast time constant circuits and Fig. 5e shows the resulting output from the combining circuit. Part of the output from detector 43 is fed to an AND circuit 55 through a video amplifier 54 directly and also through a delay circuit having such a delay that if a pulse exceeds in length the radar pulse the two inputs to the AND circuit overlap and produce an output which interrupts at 63 the delayed signal from the combining unit 41. Thus the pulse due to clutter is removed as shown at 5f. A fast A.G.C. signal is fed back from the output of the circuit to the I.F. pre-amplifier and a sensitivity control circuit 61 decreases the sensitivity of the receiver after each transmitted pulse. In a suitable amplifier and detector circuit arrangement (Fig. 4, not shown), each I.F. amplifier is a two-stage valve circuit, the detectors are diode circuits having a polarity such that the outputs are in phase and the combining circuit is a diode and transistor network.
Patent GB-368190-A (GB)
Title: Improvements in vacuum electric discharge tubes
IPC: H01J5/50
Filed: 1931-07-24
Abstract: 368,190. Thermionic valves. RADIORÍHRENFABRIK GES., 101, Neu Lokstedterstrasse, Hamburg, Germany. July 24, 1931, No. 21170. Convention date, Aug. 21, 1930. Drawings to Specification. [Class 39 (i).] In flat-shaped valves having three contact pins arranged linearly on the cap the anode pin, which may be central or at an end, is made of larger cross section than the two pins connected to the cathode. An external control grid may be used.
Patent GB-127204-A (GB)
Title: Improvements in or relating to Geneva Mechanism.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: G03B1/38
Filed: 1918-12-18
Abstract: 127,204. Jackson, W. J. Mellersh-, (Etablissements Constinsouza Soc. Anon.). Dec. 18, 1918. Intermittent gearing. - In Geneva mechanism for givi n g intermittent motion to kinematographic films &c., the sides of the slots in the cross 1 are inclined to each other to permit the crank-pin 2 to enter and leave them tangentially, and the crank-pin is so shaped as to make contact always with both sides of the slots. This arrangement permits the angle of rotation of the crank-pin to be greater or less than that required for its tangential engagement with an ordinary cross having slots with parallel sides.
Patent GB-1028155-A (GB)
Title: Process for the production of alkenyl-anilines
IPC: C07C209/68
Filed: 1964-05-22
Abstract: In a process for the production of alkenyl anilines a hydroxy-phenyl-aminophenyl alkane is heated over an alkaline catalyst and the alkenyl-aniline formed is distilled off as and when it is formed.  Examples are furnished.
Patent GB-914083-A (GB)
Title: Improvements in or relating to heat exchange coils and method and apparatus for manufacturing the same
IPC: B21D11/06
Filed: 1961-06-13
Abstract: 914,083. Tubular heat-exchange elements. BUNDY TUBING CO. June 13, 1961 [Oct. 13, 1960], No. 21223/61. Class 64 (3). [Also in Group XXII] A heat-exchange element consists of a length of metal, e.g. steel or copper, tube of flattened cross-section bent in the plane of the major dimension of the cross-section of the tube to produce a coil having spaced convolutions 20 which are held secure by one or more clips 28, retained in position by pins 30. Mounting lugs 50 are formed on the clips 28. The coil is oval and the clips are attached to the curved or straight portions of the coil. A welded tube or a brazed laminated tube may be used.
Patent GB-1285742-A (GB)
Title: Voltage detector
IPC: H04L1/00
Filed: 1969-06-26
Abstract: 1285742 Selecting signals according to relative amplitude POST OFFICE 26 June 1969 [28 June 1968] 21265/70 Divided out of 1285741 Heading H3T The circuit shown determines on which of inputs 110, 112, 114 appears the most positive and the second most positive voltages, and supplies these voltages on outputs 134, 172. If, for example, the voltage on 112 is the highest only transistor 122 of the emitter coupled transistors 120, 122, 124 will conduct. As 122 conducts transistor 128 will be on, giving an address signal on output 138. The signal on 138 inhibits gate 144 so that only the voltages on 110, 114 pass to the second stage of the circuit, which, being identical to the first stage, therefore indicates the magnitude and address of the second most positive voltage. To determine the most negative and second most negative voltages the transistors are replaced by transistors of opposite conductivity types.
Patent GB-276329-A (GB)
Title: Improvements in or relating to sheet folding machines
IPC: B65H5/38
Filed: 1927-08-12
Abstract: 276,329. Spiess, G. Aug. 18, 1926, [Convention date]. Folding paper. In a cross-folding machine in which buckling folders are employed and in which each sheet after leaving the first folder 4, Fig. 2, passes between guides to a rule 19 directing the sheet at right-angles to its former path, portions of the guides are pivotally mounted so as to permit of access to sheets which become jammed in the guides. The sheet is delivered from the folder 4 by feed-rollers 6, 7 between guides 8, 9, the latter of which are connected at one end by a bracket 10 and at the other end are attached to a bracket 12, Fig. 3, pivoted at 13 to the machine framing 1. When in their operative positions, the guides 9 are secured by a bolt passing through the bracket 10 and a bracket 11 on the framing 1. The second part of the guides is formed by a fixed plate 22 and a plate 28 pivoted at 24 to a bracket 23 attached to the rule 19. Holes 26 in the bracket 23 and plate 28 respectively, coincide when the plate 28 is in its operative position, and serve to receive a securing bolt.
Patent GB-422633-A (GB)
Title: Improvements in and relating to roller skates
IPC: A63C17/10
Filed: 1933-07-28
Abstract: 422,633. Roller - skates. JAINCZIK, A., 16, Furstenwalderstrasse, Berlin. July 28, 1933, Nos. 21298 and 21299. Convention dates, May 4, 1932 and July 8, 1932. [Class 132 (i)] [See also Group XXXI] A roller-skate comprising an endless-chain track guided by rollers on a fixed travel path is characterized in that the travel path is of U- shaped cross-section and that each of the bolts connecting the links extends through a ball bearing axle carrying a roller. As shown in Figs. 2 and 3, an endless chain 1 is composed of links 5 connected by bolts 9, each of which extends through a ball bearing axle 10 of a roller 6 running on an endless guide 7 and secured against lateral slip by side plates 8. The whole construction is enclosed at the side by coverings and a rubber brake pad is provided at the front end. The outer side of the links has a layer of anti-skidding material 11 secured thereto by screws 12.
Patent GB-200720-A (GB)
Title: Improvements in and relating to electric controllers
IPC: H01H1/44
Filed: 1922-08-04
Abstract: 200,720. Barbour, R. H. Aug. 4, 1922. Contacts.-Resiliently-mounted contact fingers for motor controllers are made of a sheet-metal stamping a, Figs. 1 and 3, of channel form pivoted at one end d to a clamping bracket e and formed with inturned lateral projections y which engage fixed stops limiting the outward and inward movements of the contact finger. The bracket e is clamped to a fixed triangular supporting bar n by means of bolts q, r and a clamping plate p. The bolt q has an enlarged portion u (which may be replaced by a nut) to limit the outward movement of the finger by engagement of two of the projections y therewith. An adjustable nut retained by the spring z serves to limit the inward movement under the action of the pressure spring t. The fingertip h is located in position by a downturned end m of the finger-arm and between the tip and the arm, one end of a connector strap x is directly clamped, the other end being clamped between the enlargement u and the bracket e.
Patent GB-182025-A (GB)
Title: Improvements in inner tubes for wheel tyres
IPC: B60C5/04
Filed: 1921-08-12
Abstract: 182,025. Dehn, F. B., (Noceem Rubber Corporation). Aug. 12, 1921. Air tubes and chambers.-Alternate ridges 5 and depressions 6 are formed on a part or the whole of a pneumatic tube which has been given a permanent elliptical set. In manufacture, the raw rubber tube 4 is compressed in a divided elliptical mould 1 which has ribs 2 and depressions 3 formed on its inner surface. The tube is then vulcanized.
Patent GB-1135200-A (GB)
Title: Improvements in or relating to magnetohydrodynamic electric power generation
Inventor: BONSDORFF MAGNUS GABRIEL VON
IPC: G21D7/02
Filed: 1965-05-20
Abstract: 1,135,200. Gas turbine plant. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 3, 1966 [May 20, 1965], No.21482/65. Heading F1G. [Also in Division H2] In an MHD power plant, the working fluid exhausting from the MHD generator is passed as heating fluid through a heater arranged to heat the working fluid for a turbine which fluid has already been compressed by a compressor driven by the turbine. Hot gas from a gas-cooled nuclear reactor 2 enters an MHD generator 1 at a temperature of say 2000‹K. and leaves it at say 1692‹K. The gas then passes through heat exchangers 3, 4 and a pre-cooler 7 which reduce the temperature successively to say 1230‹K. 414‹K. and then 310‹K. before the gas enters a two-stage compressor 5a, 5b After compression, the gas is heated say from 384‹K. to 1200‹K. in the heat exchanger 4 and, after expansion in a turbine 6, is heated say from 1050‹K. to 1512‹K. in the heat exchanger 3 before returning to the nuclear reactor 2. The precooler 7 and an inter-cooler 8 are cooled by an external medium. The pre-cooler 7 serves as a final cold trap for removing alkali metal used for seeding. If the MHD generator ceases to extract energy from the gas (e.g. if the electrical output is tripped out), a sensing means (not shown) opens valves 9 to bleed off a stream of cold low-pressure gas from the first compressor stage 5a to cool the gas entering the heat exchangers; the excess heat is rejected in the pre-cooler 7. The plant may be of open cycle type, the pre-cooler 7 being omitted, the compressor 5a drawing air from the atomsphere and the heat exchanger 4 discharging into the atmosphere. In this case, the heat source if preferably not a nuclear reactor.
Patent GB-1042084-A (GB)
Title: Combination motor vehicle
IPC: B60R5/04
Filed: 1964-05-25
Abstract: 1,042,084. Fittings on vehicles for loading and unloading. E. LICHTENFELD. May 25, 1964, No. 21520/64. Heading B8E. An estate car with a cargo space which can be extended by folding a rear seat back-rest 10 so that its rear wall 9 is flush with the cargo supporting surface 8 is provided with a loading platform 1 carried by three pairs of rollers 5, 6, 7 to facilitate loading from the rear of the car. The platform 1 has collapsible side walls 3 and a collapsible end 2 towards the front end of the car. A brake engaging one of the roller pairs is provided (Fig. 5, not shown) to prevent undesirable movement of the platform 1.
Patent GB-899238-A (GB)
Title: Metal bridging for joists
IPC: A47B13/06
Filed: 1960-06-20
Abstract: 899,238. Joist bridging members. MACANDREWS & FORBES Ltd. June 20, 1960 [Nov. 9, 1959], No. 21529/60. Class 20(4) A metal bridging member 10, Fig. 1, adapted to extend diagonally between joists 6, 7 comprises at its upper end, teeth 16 lying in a plane passing through the central longitudinal axis of the member and adapted to be driven into one joist adjacent its upper edge until stopped by a central tongue 15 at the upper end of the member, and at its lower end, a flat downwardly extending heel portion 24 terminating in outwardly extending teeth 22 adapted to be driven into the second joist, whereupon the lower end of the member becomes elevated relative to the second joist, from the full line position to the dotted line position shown in Fig. 5, to tightly wedge the member between the joists. Wedging of the member 10 between the joists is facilitated by sharp outwardly facing corners 21 lying in the plane passing through the central longitudinal axis at the point of attachment of the heel portion 24 to the body of the member 10.
Patent GB-1283821-A (GB)
Title: Dyestuff preparations and processes for their manufacture
IPC: D06P1/90
Filed: 1970-05-05
Abstract: 1283821 Dyestuff compositions CIBA GEIGY AG 5 May 1970 [5 May 1969 2 April 1970] 21537/70 Heading D1B Dyestuff preparations comprise a dyestuff dissolved in a solvent which is a phosphorus derivative, optionally dispersing agents and further solvents may be added. Preferably the composition contains more than 20% by weight of the dyestuff the preferred solvent being hexamethylphosphoric acid triamide, nonionic or anionic dispersing agents may be used. Basic, acid, disperse, substantive and reactive dyes may be used in the compositions.
Patent GB-129915-A (GB)
Title: Device for Maintaining Creases in Articles of Wearing Apparel.
Inventor: BRAUN KARL
IPC: A41D1/10
Filed: 1918-12-23
Abstract: 129,915. Braun, K. Sept. 2, 1918, [Convention date]. Collars, coat and like; legs.-To form permanent creases in trousers and other garments, such as for the collars of coats, elastic insertions of angular cross section are used, the insertions being preferably rubber combined or not with fabric. Fig. 6 shows the insertions 1 forming the front and back longitudinal creases of trousers. Figs. 1 and 4 show in section two forms of rubber insertion 1 joined to a strip of fabric 5 ready for attachment by any means to the garment. If rubber is to be stitched in position, holes for the needle may be made beforehand.
Patent GB-276339-A (GB)
Title: Improvements in detergent compositions
IPC: C11D9/30
Filed: 1927-08-16
Abstract: 276,339. Henkel et Cie Ges. Aug. 17, 1926, [Convention date]. Cleaning-compositions for washing delicate textiles comprise urea, an enzyme decomposing urea, tryptic enzymes, a mild alkali, and soap or other known soaking agent. Other enzymatic materials may be added. In an example 70 lb. of soap, 56 lb. of urea, 28 lb. of dry sodium dihydrogen phosphate, 14 lb. of disodium hydrogen phosphate, 42 lb. of urease, and 2 lb. of pancreatin are used in water at about 40‹ C. Ammonia is evolved and assists the cleaning; the urea prevents running or dimming of the colours.