baber/WOPTO huggingface dataset:
Patent GB-847396-A (GB)
Title: Improvements in or relating to marking or centre punches
Inventor: HUTTON-WILLIAMS DEREK ALFRED
IPC: B25D5/02
Filed: 1957-08-30
Abstract: 847,396. Percussion tools. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 28, 1958 [Aug. 30, 1957], No. 27359/57. Class 124. A fluid operated tool for marking or centre punching comprises a cylinder 1 having mounted at one end the marking punch 15, Fig. 1, or centre punch 37, Fig. 6, and at its other end a valve mechanism 18 which is operated by the relative sliding movement between the cylinder 1 and an outer sleeve member 7 when the punch is pressed against the workpiece, the valve mechanism 18 controlling the inflow and exhaust of pressurised fluid to and from the interior of the cylinder to operate a piston 5 which delivers the blow to the punch. The valve mechanism is in the form of a piston valve 18 slidably mounted within a plug assembly 3 which closes one end of the cylinder 1. The piston valve 18 is formed with a pair of annular grooves 25, 26. The groove 25 forms together with ports 27, 28, 30, 31, Fig. 1, the communication between a pipe line 29 which supplies pressurised air and the interior 4 of the cylinder 1 when the valve 18 is moved into its forward position against the action of a spring 22 by the forward sliding movement of the sleeve 7 relative to the cylinder 1. The groove 26 forms together with ports 32-35, Fig. 4, the communication between the interior 4 of the cylinder and atmosphere when the valve is allowed to return to its retracted position by the spring 22. The forward end of the cylinder 1 is closed by a plug assembly 2 having a tubular part 9 which receives the shank 11 of the punch. The shank 11 extends into the path of movement of the cylinder piston 5. A return spring 16 is provided between the piston 5 and the plug 2. The marking punch 15, Fig. 1, has a distance piece 13 between a shoulder 12 on the shank 11 and the inside of a hollow nut 14 screwed on to the part 9. In the centre punch 37, Fig. 6, the shoulder 12 rests against the inside of the hollow nut 14 and a spring 39 is inserted between the part 9 and the shoulder 12.
Patent GB-1426483-A (GB)
Title: Vincamine derivatives and process for the preparation of vincamine and derivatives thereof
IPC: C07D471/14
Filed: 1973-06-08
Abstract: 1426483 Vincamine derivatives AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 8 June 1973 [19 June 1972] 27391/73 Heading C2C The invention comprises 20-diethyl-vincamine in its racemic and optically active forms and having the Formula I or II and its dehydro derivative 20-diethyl-apovincamine of Formula III The 20-diethylvincamine and vincamine of Formula IV in which R is hydrogen or ethyl respectively may be prepared by treating an enamine of Formula V with methyl α-bromomethylacrylate, reducing the resulting ammonium salt and oxidizing this with simultaneous cyclization. The ammonium salt may be reduced with sodium borohydride and the subsequent oxidation with simultaneous cyclization by treatment with osmium tetraoxide or potassium. The dehydro derivative is prepared by dehydrating 20-diethylvincamine, e.g. in acidic medium.
Patent GB-521492-A (GB)
Title: Improvements in the production of diazotype light-sensitive layers
IPC: G03C1/54
Filed: 1938-09-20
Abstract: 521,492. Photographic diazotype processes. HARDING, Ltd., S. C. & P., and LEUCH, W. P. Sept. 20, 1938, No. 27398. [Class 98 (ii)] [Also in Group IV] Diazo compounds derived from amines of the general formula where X is an isopropyl radical or a radical containing four or more carbon atoms and Y is an aliphatic acyl group, are used in the diazotype process. Y is preferably an acetyl group. X may also be a n-butyl group. Paper may be coated with an aqueous solution of the zinc chloride double salt of the diazo compound from 4- amino - 1 - acetylamino - hydroquinone - dibutyl ether, tartaric acid, and aluminium sulphate, and after exposure developed with an aqueous solution of phloroglucinol, resorcinol, tartaric acid, sodium tartrate, sodium formate, and sodium benzoate. Amines of the above general formula are prepared from the appropriate hydroquinone ether by nitrating, reducing and acetylating, and either nitrating and reducing or coupling with a diazo compound such as diazotised sulphanilic acid and splitting the dyestuff obtained. The amines may be diazotised and the diazo compounds precipitated with zinc chloride and sodium chloride. Specifications 347,430 and 425,235 are referred to.
Patent GB-223063-A (GB)
Title: Improvements relating to beer extractors, siphons and the like
IPC: B67D1/04
Filed: 1923-11-16
Abstract: 223,063. Burden, P. S., and Colverson, H. L. Nov. 16, 1923. Strainers fitted at end of pipes. - A fitting adapted to be mounted at the bottom of beer supply pipes and the like comprises an upper neck or collar 1, a base-plate 2, rods 3 or other supporting-means to space the collar from the baseplate, and a gauze wall 4. The plate 2 has an internal flange 6, which screws on to a collar 9 secured to the rods 3, and is provided with perforations 13 and an internal screw thread 7 to receive the end of the beer pipe. A gauze disc 12 may be placed as shown within the part 6.
Patent GB-488974-A (GB)
Title: An improved preparation for killing germs and parasites in human system
IPC: A61K36/00
Filed: 1937-10-11
Abstract: Medicinal preparations for killing parasites or germs in the human system are obtained by extracting plants of the gentian family known as chiraetta by treatment with alcohol in the presence of aspirin in a sealed container and with heating, e.g. to a temperature of 80-120 DEG  F.  The extraction treatment may continue from 2 hours up to four days.
Patent GB-1367232-A (GB)
Title: Antenna means
IPC: H01Q9/06
Filed: 1972-06-13
Abstract: 1367232 Aerials MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 13 June 1972 [14 June 1971 (3)] 27588/72 Heading H4A An aerial means of monopole or dipole type (Figs. 2 to 5, not shown) comprises one or two aerial conductors each consisting of a plurality of radiating linear conductors aligned serially, and each having an overall length not exceeding #/4 (#=wavelength at the lowest operating frequency). There are also provided substantially non-radiating parallel linear two-wire distributed constants transmission lines or stubs of lengths not exceeding #/4, each having one end thereof short-circuited and the other end thereof connected across adjacent ends of a pair of said radiating linear conductors, said stubs being disposed perpendicularly to the axis of the aerial conductor. The capacitive component of the aerial conductor impedance is compensated by inductive impedance components of the stubs, so that efficiency and bandwidth are improved. The stubs may be straight or folded or curved, and their lengths, or the spacings between their constituent conductors, may vary. Also, the lengths of the radiating linear conductors of an aerial conductor may vary (Figs. 7 to 9, not shown). In one embodiment, radiating elements 13, Fig. 10(c), and stubs 14 are formed by a printed circuit technique upon an elastic sheet 12 of insulating material, which is then inserted within a cylinder 11 of insulating material. The sheet 12 is retained within the cylinder 11 by reason of the elasticity of said sheet. A hole 15 in the cylinder provides an outlet for feeders. In another embodiment, an aerial means 20 comprises radiating elements 23, Fig. 11, and stubs 22, which are provided on the outside of a square bar 21 of insulating material. A conductive rod 24 is inserted in an axial hole in the bar 21, and is connected in parallel with the aerial means 20, so providing a dual frequency arrangement.
Patent GB-1491265-A (GB)
Title: Fluid flow device
IPC: F15D1/00
Filed: 1975-06-30
Abstract: 1491265 Flow modifying device; junction pieces SIEMENS AG 30 June 1975 [4 Aug 1974] 27590/75 Headings F2P and F2G [Also in Division Bl] A fluid flow device comprises a frustoconical tubular casing 1 having ends opening in apertures 2, 3 of differing cross-section and the larger aperture 3 being closed by a sealing plate 7 having a plurality of parallel ducts 6 extending therethrough and at least one plate as at 14 or 15 disposed inside the casing 1 perpendicular to the casing axis, also having a plurality of ducts 16 or 17, a passage 18 or 19 being defined between the edge of the plate 14 or 15 and the inner wall of the casing 1. The plates 7, 14, 15 of the preferred embodiment are sintered perforated bricks of aluminium oxide or magnesium oxide or alternatively metal plates could be used. Plates 14, 15 are mounted in pipe members 8, 9 themselves secured at one end thereof to the casing 1 by spring rings 10, 11 slots 18, 19 in pipe members 8, 9 serving as the aforementioned passages.
Patent GB-482904-A (GB)
Title: Improvements in or connected with economisers or feed water heaters for steam boilers
IPC: F22D1/02
Filed: 1936-10-12
Abstract: 482,904. Heating feedwater. TANSLEY, G. E. Oct. 12, 1936, No. 27656. [Class 64 (i)] To prevent condensation of flue gases on the cold tubes of a feedwater heater 6 when starting up, the gases being then directed into the chimney without passing over the heater, hot water is drawn by a pump from the boiler drum 5 through a pipe 3 and supplied through a pipe 7 into the feed at the heater inlet 6a, and when the temperature of the tubes has been raised, a cock 10 in the pipe 3 is closed and a cock l in a pipe 9 is opened to allow the pump to draw hot water from the outlet of the heater for supply to the inlet. The gases are directed over the heater by opening a damper 16 and closing a damper 15 beyond the heater.
Patent GB-155094-A (GB)
Title: Improvements in means for operating horns of motor cycles or the like
IPC: G10K9/18
Filed: 1919-11-10
Abstract: 155,094. Alexander, G. C., and McLay, W. J. Nov. 10, 1919. Fluid supply for horns.-Knee grips for a motor-cycle comprise air-pads 4 preferably enclosed in hemispherical leather or like cases fixed to a leather base or strap 1. Compression of the pads 4 operates a pneumatic horn as shown. For working mechanical horns, the pads may contain a lever acting against a spring and suitably connected by a cable to the horn. For electric horns the pads 4 may contain switches.
Patent GB-780396-A (GB)
Title: Improvements relating to electric irons
IPC: D06F75/14
Filed: 1955-09-29
Abstract: 780,396. Steam irons. HOOVER, Ltd. Sept. 29, 1955 [Oct. 6, 1954], No. 27785/55. Class 138 (2). An electric steam iron comprises an electrically heated sole-plate 10 (Fig. 3), a thermostat having an adjustable control dial 27, a reservoir 16 for water having a filling opening 25 with a movable closure member 32 arranged to be opened and closed by movement of the dial 27. The closure member 32 is in the form of a U-shaped bracket pivoted at 33 to a filler tube 17 and operatively connected to a pair of levers 34 pivoted at 35. A coil spring 36 biases the closure member 32 to its closed position. When the dial 27 is moved to the " fill " position, a cam 38 on the underside of the dial engages an extension 37 of the arms 34 to open the closure member 32. The size and position of the cam 38 are such that the closure member 32 will remain closed at all positions of the dial except the " fill " position. Figs. 5 and 6 show a second embodiment in which the handle 80 of the iron has a single supporting pillar and the opening 40 for the reservoir 16<SP>1</SP> faces upwardly and is provided with a rectangular coverplate 42 hinged at 43. The thermostat control dial 27<SP>1</SP> has two cams 38<SP>1</SP> (Fig. 5) and 70 (Fig. 6), the cam 38<SP>1</SP> being adapted to open the closure plate 42 and the cam 70 to operate a valve controlling the supply of water from the reservoir 16<SP>1</SP> to a flash boiler cavity 21<SP>1</SP>. At the " fill " position of the dial 27<SP>1</SP>, the cam 381 engages and depresses a vertically slidable pin 56, the lower end of which bears on one end of a lever 51 pivoted at 52 to a bracket 53 and connected at its other end to a link 48 pivotally connected to the cover-plate 42. A spring 54 biases the plate 42 to its closed position. At the " steam " position of the dial 27<SP>1</SP> the cam 70 engages and depresses a vertically slidable pin 67, the lower end of which engages one end of a lever 62 pivoted at 63 and pivotally connected at 61 to a valve stem 60. A spring 65 biases the valve stem 60 to its closed position. The cams 38<SP>1</SP> and 70 are spaced apart radially and circumferentially, and the water flow valve cannot be opened when the closure plate 42 is open for filling the iron.
Patent GB-190584-A (GB)
Title: Improvements relating to the traversing mechanism of the grinding rollers of carding engines
IPC: B24B47/12
Filed: 1921-10-20
Abstract: 190,584. Horsfall & Bickham, Ltd., and Shaw, T. R, Oct. 20, 1921. Wire cards, grinding.-The speed of traverse of the grinding-roller of a Horsfall type grinder for carding-engines is varied by imparting to the double-threaded traversing-screw different rotational speeds. The screw shaft c has secured upon it two pinions a, b having different numbers of teeth and meshing with pinions d, e, respectively, mounted on a spindle f rotatably and slidably carried by the gear casing g. The shaft c also has mounted rotatably thereon a sleeve h carrying a pinion i, which meshes with a pinion j keyed to the spindle f; the sleeve h is driven by the, sleeve k carrying the grinding-roller. The spindle f has mounted in a recess therein a key l urged outwardly by springs; by axial movement of the spindle, the key l enters into driving connection with either of the pinions d, e, thus giving two rotational speeds to the screw shaft. The spindle f is retained in either axial position by grooves o, p and a catch pivoted on the casing. More than two speeds may be provided for by increasing the number of pinions a, b, d, e. According to the Provisional Specification, the pinions d, e may be connected to the shaft f by a key moved by an element sliding in a slot in the casing g.
Patent GB-652861-A (GB)
Title: Improvements in or relating to magnetrons and magnetron circuit arrangements
IPC: H01J25/52
Filed: 1946-09-17
Abstract: 652,861. Magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Sept. 17, 1946, No. 27905. Convention date, Dec. 17, 1940. [Class 39 (i)] In a magnetron having an indirectly-heated cathode and a concentric anode consisting of segments which are parallel to the cathode and connected alternately to one or other of two end pieces spaced along the cathode axis, the cathode diameter is not negligible with respect to that of the anode and is for example equal to about a third of the anode diameter. The anode segments B1 A1, B2 A2 are mounted on annular discs D1 D2 of outer diameter larger than, and inner diameter equal to, the anode diameter. Two screens E1 E2 connected to the cathode protect the discs D1 D2 from electron bombardment, and may have modulating potentials applied to them. The discs D1 D2 are connected together by a short connection L. The discs D1 D2 may be imperforate and located outside the screens E1 E2.
Patent GB-208844-A (GB)
Title: Improvements in and relating to loose-leaf files, binders and the like
IPC: B42F13/12
Filed: 1922-10-14
Abstract: 208,844. Accounting & Tabulating Corporation of Great Britain, Ltd., and Best, F. Oct. 14, 1922. Post files; looks; covers.-In a loose-leaf binder of the kind having posts provided with heads K which coact with slots L in the binder-cover, and, when partially rotated, lock the sheets in the binder, the posts E engage in oppositely disposed notches in the sheets, and the heads K are looked from rotation by key-operated means. The latter comprises a plate Q which is pivoted to the cover by hinges P and secured thereto by a lock R, and holds the heads K in the locked position in slots S placed transversely to the slots L. The heads K are T shaped and have one arm longer than the other, and the posts E are telescopic or comprise interengaging screwthreaded sections N. The back B is flexible and has upper and lower flanges D, C to which the covers A are hinged. The edges of the slots L may be reinforced with metal.
Patent GB-1472761-A (GB)
Title: Drafting machine
IPC: B43L13/00
Filed: 1974-06-24
Abstract: 1472761 Drafting apparatus M KAITATZIDIS 24 June 1974 [25 June 1973 14 May 1974] 28074/74 Heading G1X A drafting machine comprises a frame 12, a continuous guide extending around the entire periphery of the frame, a slide element 2 slidable along the guide and bearing an upstanding projection 24, and a drawing instrument, such as a template, setsquare, protractor or ruler 1, having a longitudinal recess or slot 6 to receive the projection such that the instrument can be moved rotationally and translationally relative to the slide element 2. As shown, the guide is a groove 5 engaged by a part of the slide element 2 having a flat and a rounded surface, a magnetic rod 5 retaining the slide element in the groove. The groove may be undercut as in Figs. 6 and 7 (not shown). Alternatively the guide may be constituted by a rib, and the slide element formed with a groove. In other embodiments (not shown) a slide member, has two slide elements formed as pins, (21, 21'), connected by a bridge (22) and engaging the groove, Figs. 12 and 13 (not shown), the slide element is a single pin engaging the groove and two bearing surfaces (23, 23') sliding along an abutment edge of the frame, Figs. 16 and 17 (not shown), and the slide element has an elongate member with rounded ends engaging the groove, Figs. 18 and 19 (not shown). A protractor 8 mounted on the slide element 2 may be used to indicate the inclination of the instrument. Another aspect of the drafting machine is claimed in Specification 1472762.
Patent GB-499485-A (GB)
Title: Improvements in and relating to cartons
IPC: B65D5/26
Filed: 1938-09-29
Abstract: 499,485. Cartons. FOLEY, C. Sept. 29, 1938, No. 28302. [Class 18] The sides of a carton are provided with extensions which can be folded, concertinafashion, against the sides for display purposes or opened out to constitute handles for carrying the carton. As shown, the carton is made up from a single blank comprising a base 1, ends 2 with extensions 3 which are bent round and stapled together to constitute the sides, and extensions 4 to form the handles, the end sections of these extensions being provided with hand-holes 5. In a modification, the sides are constituted by flaps 4a to which short extensions 3 on the ends are stapled, and the handles 4 are separate members stapled to the upper edges of the sides. The carton may be provided with a transparent or other cover.
Patent GB-1508423-A (GB)
Title: Control circuit for power supply
IPC: H02M3/337
Filed: 1974-06-27
Abstract: 1508423 Inverting STANDARD TELEPHONES & CABLES Ltd 19 June 1975 [27 June 1974] 28511/74 Heading H2F A power supply circuit comprises a pair of transistors connected in push-pull with an output transformer, an astable multivibrator applying drive signals alternately to the transistors to generate an alternating output, means to detect current unbalance between the transistors and an amplifier coupling the detector to the multivibrator so as to control the relative duration of the drive signals and thereby equalize substantially the mean current through each transistor. The current unbalance may be detected by using the D.C. voltage across the transformer primary winding or the phase and magnitude of a fundamental A.C. in the current from the D.C. power source. In Fig. 2 a transformer T2 is connected in the D.C. supply to the inverter circuit T1, TR3, TR4 and its output is applied to circuit R7, R8, C3 to produce a signal which modifies the charging current of the capacitor C1 in multivibrator TR1, TR2, R1-R5, C1, C2, whereby the width of the drive signals applied to transistor TR4 is reduced if this transistor takes a current greater than that of transistor TR3, Figs. 3 and 4 (not shown).
Patent GB-804910-A (GB)
Title: Improvements in or relating to antenna systems
Inventor: MORENO CHARLES A
IPC: H01Q15/06
Filed: 1953-10-15
Abstract: 804,910. Directive radio systems. SPERRY CORPORATION. Oct. 15, 1953, No. 28544/53. Class 40 (7). A radar searcher and tracker are combined so as to transmit and receive through a single metal cellular lens. The tracker causes the device to follow a target while the searcher provides an image of the target on a CRT. The search signals are vertically polarized and are brought to a focus at a horizontal line by the lens. The track signals are horizontally polarized and are brought to a focus at a point. The search device consists of a conventional line scanner 42 which periodically varies the angle at which the vertically polarized wavefronts emerge along a line to provide lateral movement of the beam. A polarization sensitive grating reflector 14, which is oscillated sinusoidally in synchronism with the scan frequency, directs the scan signals between the lens 10 and the scanner to provide vertical movement of the beam. The track device consists of a conventional rotator and feed horn 28 for the horizontally polarized tracking signals, which is rotated conically and located near a lens focus point. The reflector is transparent to the tracking signals. The lens consists of two sets of metal plates set at right angles, each set acting as spacers for the other, the sets being conventionally shaped to give the line and point focus respectively. Reference has been directed by the Comptroller to Specification 705,209.
Patent GB-976582-A (GB)
Title: Helicopter landing gear
Inventor: MARTIN PHILIP RAYMOND
IPC: B64C25/50
Filed: 1962-07-25
Abstract: 976,582. Helicopter undercarriages. MINISTER OF AVIATION. Oct. 9, 1963 [July 25, 1962], No. 28562/62. Heading B7G. A helicopter undercarriage has four wheels arranged in diamond formation, two diagonally opposed wheels 15, 16 being on the fore and aft axis and fully castoring, and the other two 11, 12, which are the primary load-carrying wheels, being on a common transverse axis. As shown, the axis of the wheels 11, 12 passes directly under the centre of gravity CG. The wheels 15, 16 are steerable, their common turning centre lying under the centre of gravity, and are connected to each other and to a control wheel 16 by a chain 25. The front wheel may be connected to a towbar (Fig. 3, not shown) for ground manoeuvring, the steering control being disconnected. Alternatively, only one of the wheels 15, 16 is steerable, the other castoring freely.