baber/WOPTO huggingface dataset:
Patent GB-904368-A (GB)
Title: Means for matching the characteristic impedance or some other impedance of a coaxial conductor
IPC: H03H7/38
Filed: 1959-02-23
Abstract: 904,368. Impedance matching. ALFORD, A. Feb. 23, 1959, No. 6224/59. Class 40 (8). A coaxial line has means for adjustably matching, and, if desired, compensating for, the characteristic impedance or some other impedance thereof, comprising a plurality of conductive stubs, 6, 7 radially arranged about the inner conductor 1, slot 8 and screw means 9 adjustably securing the stubs to the outer conductor 2 whereby the effective dielectric spacing between the inner and outer conductors can be adjusted, and series resistive 12 and inductive means 13, 14 interconnecting the alternate stubs 7 with the inner conductor 1 whereby adjustable inductive elements are provided, the other stubs 6 providing adjustable capacitive elements. Each stub is adjustably positioned in a radially-extending slot cut partially into the upper surface of the flange 4 on the outer conductor 2. The inner and outer conductors 1, 2 can be spaced by the dielectric disc 3, and the inner conductor is bevelled at the end 5 sufficiently to make the capacitance between the ends of the conductors 1 and 2 too low, in the absence of compensating means. The stubs 6, 7 are all tapered at their inner end toward a blunt tip 11. The inductive means 13, 14 comprise wire sections, the section 14 being connected to the bevelled end 5 of the inner conductor 1 by a screw. In the arrangement shown in Fig. 4 both a resistance and a capacitance is incorporated between each stub 6<SP>1</SP> and the inner conductor 1. Each stub 6<SP>1</SP> is provided with a dielectric plate 15 covering its inner end and facing a conductive plate 16 slidable on the plate 15, a band 17 of dielectric material providing guide means. The inner end of the plate 16 is connected to a resistor 18 connected to the end of the inner conductor 1. The individual inductances, capacitances and resistances can be equal or nearly equal, the relation R<SP>2</SP>=L/C holding or holding for the average values.
Patent GB-1023400-A (GB)
Title: Adjustable supports for high-sensitivity apparatus
Inventor: PAYNE FREDERICK EDWIN
IPC: G01B5/00
Filed: 1965-02-12
Abstract: 1,023,400. Dial gauges. ENGINEERING PRODUCTS Ltd. Feb. 12, 1965, No. 6268/65. Heading G1M. An adjustable support for high-sensitivity apparatus, comprises a bar 1 which is necked over a length 2 thereof, a rigid sleeve member 6 integral or integrated with said bar adjacent one end of said necked length and extending over and beyond the other end of the latter with play between the member 6 and the bar beyond said other end, and means 12 for acting on said bar beyond said other end to flex the same about said necked length, the bar or sleeve member being adapted for fitment thereto of high sensitivity apparatus. The necked length 2 has opposed substantially plane parallel faces 4, 5. The sleeve 6 is of annular cross-section and fits closely round the end 3 of the bar and is connected thereto by a screw 9. In the embodiment shown the end closure 7 of the sleeve has a screw thread 11 for mounting the high sensitivity apparatus. The means for flexing the bar 2 includes a tapped hole in the bar and an opening 13 in the sleeve through which extends an adjusting screw 12. The bar is initially deformed so that it contacts the opposite wall of the sleeve to the opening 13 to give maximum play.
Patent GB-451436-A (GB)
Title: Improvements in and relating to water heating apparatus
IPC: F24H1/20
Filed: 1935-02-27
Abstract: 451,436. Heating water. BERRY, G. J., and PAINTON, C. A., 85, Newman Street, Oxford Street, London. Feb. 27, 1935, No. 6237. [Class 64 (i)] [See also Group XI] A domestic water-heater comprises an electric heater 2 complete in itself in which water is heated to a given temperature and with a discharge pipe 4, in combination with a second and considerably smaller electric heater comprising a water receptacle 7 with an electric heating element and a float 10 controlling a mercury switch 18 in circuit with the element, the pipe 4 delivering warm water from the heater 2 selectively to atmosphere straight through the pipe 4 and outlet valve 5, or when the latter is closed, delivering water to the receptacle 7 through apertures 6 in the pipe 4, whereby the float is operated to close the switch and boil the small quantity of water in the receptacle. Warm water is discharged from the heater 2 by inflow of cold water through a pipe 9. The pipe 4 may terminate in the receptacle 7, and a valve-controlled outflow pipe with a mouth larger than the pipe 4 may be arranged coaxially therewith so that water passes straight through when the valve is open or into the receptacle when the valve is closed. The receptacle 7 has an overflow or vent pipe 22 and a steam whistle 23. A pivoted arm 11 on the float 10 extends into a chamber 14 adjacent the receptacle and operates a lever 15 carrying the switch 18 and extending through a slot in the front of the chamber to indicate on a scale 20 the level in the receptacle. A lamp connected in parallel with the heating element indicates when the latter is in use.
Patent GB-376210-A (GB)
Title: Improvements in hydraulic telemotor systems
IPC: B63H25/22
Filed: 1932-03-02
Abstract: 376,210. Telemotor apparatus. BROWN BROS. & CO., Ltd. and WALLACE W., Rosebank Iron Works, Edinburgh. March 2, 1932, No. 6291. [Class 69 (ii).] Telemotor apparatus is charged by means of a pump 4 having its inlet open to a replenishing tank 3 forming part of or adjacent to the transmitter, and its outlet connected to the transmitter cylinders through equalizing valves 8 ; a relief valve 9 and isolating valve 10 are also provided.
Patent GB-1281611-A (GB)
Title: Apochromatic microscope objectives
Inventor: O'CONNOR ANTHONY
IPC: G02B21/02
Filed: 1970-02-10
Abstract: 1281611 Microscope objectives VICKERS Ltd 19 April 1971 [10 Feb 1970] 6385/70 Heading G2J An apochromatic microscope objective comprises a first lens assembly L 1 , L 2 , L 3  of converging lens elements, a second lens assembly L 4  of correcting lens elements, for reducing aberrations produced by the first lens assembly, and a field-flattering lens assembly L 5 , L 6 , L 7  which includes positive lens L 5 , and a negative lens element spaced from the positive lens, the negative lens element being one component of a compound lens L 6  of high negative power, a further component of which is a positive-power lens element made of anomalous glass that is anomalous in the same sense as fluorite. The positive-power lens L 5  may be a doublet as shown, the biconvex part being of an anomalous glass which is anomalous in the same sense as fluorite, the negative-power meniscus being anomalous in the opposite sense as fluorite e.g. of borate flint. The second lens assembly, a doublet as shown, the negative power component being of anomalous glass which is anomalous in the opposite sense to fluorite, the positive-power component being of anomalous glass which is anomalous in the same sense as fluorite. Optical data are given for two examples.
Patent GB-168562-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A3/52
Filed: 1920-06-24
Abstract: 168,562. Walther, F., and Walther, G. June 24, 1920. Breech actions, sliding barrel and breech-block. -Relates to automatic guns of the short barrelrecoil and toggle-action type. According to the invention, (1) the bending of the toggle and the opening of the breech is effected during the return of the barrel by a cam on the rear toggle engaging a detent, (2) a crank-handle is provided for opening and closing the breech by hand, and (3) mechanism, operated by the trigger, is provided for ensuring that the toggle is completely stretched before the gun is fired. In the construction shown, the breech-block 2 is locked by a toggle-joint 3, 4, the rear link of which is pivoted by a pin 63 to the breech-body B, which recoils with the barrel. The rear toggle-link 4 is formed with a laterally projecting cam 64 which, at the end of the recoil of the barrel, engages a spring detent 65 mounted on the fixed frame, so that, as the barrel and body B move forwards, the toggle is bent and the breech-block opened. The detent 65 is released towards the end of the return movement of the barrel by a projection 70 on the connecting-link 71 of the barrel return spring. The rear toggle-link can be turned by hand to open the breech by an external lever 82, Figs. 8 and 11, projecting from the pivot pin 63, which is formed with a lip 91, Fig. 10, engaging one end of a semicircular groove 89 in the hub of the rear toggle. When it is desired to close the breech by hand, a pin 98 is inserted through a hole in the hub of the lever 82 to engage the other end of the groove 89 in the hub of the toggle. The stretching of the toggle is completed, when the trigger is pulled, by a lever 107, Fig. 17, having a projection 111 engaged by a tooth 106 on the trigger 102.
Patent GB-290772-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K13/04
Filed: 1927-03-08
Abstract: 290,772. Townend, R., and Metropolitan-Vickers Electrical Co., Ltd. March 8, 1927. Coils; commutators; windings.-For a winding made of strap and having more than two conductors per slot, each coil consists of an uninterrupted length of strap wound into a number of turns and associated with more than two commutator bars, with the coil. to-coil connections at one end of the armature, and the connections of the individual coil turns to the commutator bars at the other end. Figs. 1 and 2 show the arrangement in a 4-turn coil for a lap winding wherein the start 13 and finish 14 of the coil extend at one end beyond the spaced bends 17 of the strap conductor 10 and the bends 15 at the other end are inserted in slots 16 in the commutator segments. The start and finish 13, 14 are connected to the correspondingly projecting members of the adjoining coils. They may, alternatively, be of the same length as the bends 17, Fig. 3, which, in this case, are bunched together to leave space for the clips or the like which connect the coil ends. Instead of entering slots in the segments directly, the bends 16 may be connected to the commutator by light conr.ecting links which are sweated or brazed to the bends and into slots in the commutator segments or risers. If the machine has slip-rings or equalizers, these may be connected to the start and finish junctions.
Patent GB-129601-A (GB)
Title: Improvements in Photographic Camera and like Stands.
Inventor: ASHFORD JAMES
IPC: F16B7/10
Filed: 1919-03-15
Abstract: 129,601. Ashford, J. March 15, 1919. Tripod stands. - A photographic and like tripod stand with telescopic legs has the upper sections of the legs of open-sided channel form. The inner sections have projections 5, 9 which slide in the slots and when the legs are extended engage slots in fittings 7, 11 on the lower ends of the upper sections of the legs. A clamping screw and nut 16 may be provided on each middle section, and a spring catch on each bottom section of the legs.
Patent GB-951001-A (GB)
Title: Method of preparing and packaging a water solution for freezing into an ice confection
Inventor: ALDRIDGE BARRY
IPC: B65B9/213
Filed: 1962-02-20
Abstract: A water solution of sugar, saccharin, and citric acid, with flavouring and colouring matter added, is sterilised at about 80 DEG C. before packaging (see Division B8), the ingredients being capable of freezing at -5 DEG C. in a domestic refrigerator to form an iced lolly.  The total quantity of soluble solids held in solution does not exceed 12 1/2 % of the total weight of the solution.
Patent GB-209631-A (GB)
Title: Improvements in winches
IPC: B66D1/06
Filed: 1923-03-07
Abstract: 209,631. McLachlan, C. D. March 7, 1923. Winches.-A winch comprises the arrangement and combination of all the parts hereinafter described. Two drums on parallel shafts are geared to a common spur wheel 4 on a shaft carrying a worm wheel 3 driven from a non-reactive worm shaft 5. The worm shaft is revolved directly by one handle 7 or through mitre gearing from a through shaft 10 carrying handles 8, 9. The worm shaft also carries a combined fly-wheel and brake disc 6, the brake strap being controlled by the adjustably-weighted hand-lever 14. Pawl-andratchet mechanism is fitted between the worm wheel and its shaft to enable the shaft 2 to be rotated directly for raising light loads by a handle attached to the part 19. The winch is adapted for paying out two cables at equal rates, as for example in boat-lowering apparatus.
Patent GB-1098501-A (GB)
Title: The method for purifying concentrated aqueous zinc chloride system solution
IPC: D01F6/18
Filed: 1965-02-16
Abstract: Compounds which adversely affect acrylonitrile polymerization and present in an at least 50% wt. ZnCl2 solution are rendered inactive by adding 0.1 to 1.0% wt. of one or more of ZnO, NH4OH, (NH4)2CO3, NaOH, Na3CO3, CaO, Ca(OH)2, MgO, Mg(OH)2 and adding H2O2 and heating to 90 DEG  to 100 DEG  C., e.g. for at least 20 min. 0.3 to 1.0% wt. of the solution, of H2O2 may be used.  Excess H2O2\t may be removed by adding Zn powder, e.g. in the amount, 0.1 to 0.3% wt. of the solution. The solution may be further purified by adding 0.1 to 0.2% wt. of active charcoal.  The pH of the solution during inactivation of the compounds may be between 0 and 2.
Patent GB-1479872-A (GB)
Title: Rotary cutter head for removing external circular fins from welded pipe joints
IPC: B23B5/00
Filed: 1976-02-19
Abstract: 1479872 Rotary cutter heads VSES N I INST POSTROITEL STVU MAGIST RALNYKH TRUBOPROVODOV VNILST and ELEKTROSTAL ZAVOD TYAZHELOGO MASHINOSTROENIA 19 Feb 1976 06633/76 Heading B3T A rotary cutter head for use in removing the fins produced on welded pipe joints comprises an annular rotor 3 which surrounds the pipe to be machined, the rotor having a flange-plate on which tool carriages 5 are mounted, each carriage being adapted to receive a cutting tool 6 and has a roller 8 which in use is adapted to traverse over the external surface of the pipe to be machined, means is provided to effect radial feed of the tool carriages during rotation of the rotor whilst the roller confines the movement of the cutting tool to the external shape of the pipe. The rotor 3 is supported for rotation in a housing 1 and the means for effecting radial in-feed of the cutting tool is achieved by controlled differential movement between the rotor 3 and a holder 10 on which the rotor is mounted. The tool carriages 5 are articulated by levers 9 to the holder 10 one end of each lever being attached to a spring biassed plunger 11 which permits relative movement between the lever and carrier which permits the roller to follow and remain in contact with the surface of the pipe during operation thereon. The infeed of the carrier is produced by causing relative angular rotary movement between the rotor 3 and the holder 10 which are simultaneously rotated in the housing from a common drive means 19, 22. Through two shafts 20, 13 and 21, 16. The difference in relative movement between the rotor and housing is effected by a gear differential unit Fig. 4 (not shown) in the gear box unit 19, the differential movement produced causing pivoting of the lever 9 which causes infeed of the cutting tool carrier 5. The differential movement is imparted to a planetary gear system in the box 19 by the action of a fluid actuated rock member 32 Fig. 5 (not shown).
Patent GB-1454472-A (GB)
Title: Piston
IPC: F16J1/14
Filed: 1975-02-17
Abstract: 1454472 Pistons KARL SCHMIDT GmbH 17 Feb 1975 [19 Feb 1974] 6666/75 Heading F2T In a cast piston, connecting rod 5 is pivoted on a protuberance 3, integral with the piston skirt 2. The surface of the protuberance is machined through gap 6. The piston is intended for a light duty I.C. engine, such as that of a lawn mower.
Patent GB-970953-A (GB)
Title: ª‡,ª‡-disubstituted 1-naphthylacetic acids
Inventor: CASADIO SILVANO
IPC: C07C57/40
Filed: 1962-02-21
Abstract: The invention comprises compounds of general formula <FORM:0970953/C1/1> where R1 and R2 are alkyl groups together possessing at least three carbon atoms; physiologically compatible salts thereof; and their preparation by reacting an amide of formula <FORM:0970953/C1/2> with nitrous anhydride or with an organic nitrite in the presence of acid, the amide optionally being obtained by hydrolysis in the presence of a mineral acid and a liquid carboxylic acid of a nitrile of formula <FORM:0970953/C1/3> which may itself be obtained by reaction of 1-naphthylacetonitrile with an alkyl halide (or two alkyl halides in succession) in a cyclic or acyclic ether solvent in the presence of an alkaline substance.ALSO:Pharmaceutical compositions comprise one or more choleretic and spasmolytic compounds of general formula <FORM:0970953/A5-A6/1> in which R1 and R2 are alkyl groups, or physiologically compatible and salts thereof, together with a pharmaceutical carrier or excipient.  Forms (tablets, dragees, capsules, ampoules, suppositories, syrups, elixirs, emulsions, powders) for oral, rectal and parenteral administration are described.  Other substances useful in hepatic-biliary disease (e.g. liver extract, B Vitamins, choline salts, methionine, inositol, laxative and cholagogic vegetable extracts) may be incorporated.
Patent GB-462420-A (GB)
Title: Improvements in or relating to registration of paper in printing operations
IPC: B41F13/02
Filed: 1936-04-06
Abstract: 462,420. Automatic control systems. CHAMBERLAIN, S. B. April 6, 1936, No. 6785 /35. [Class 38 (iv)] Registration.-In order to print a watermarked paper web 10, in register with the watermarks a light ray and a photoresponsive device 46 are arranged on opposite faces of the web to scan watermarks on its edge. A plunger 99 connected by an electrical relay with the device is reciprocated at a frequency dependent on the speed of passage of the watermarks. The plunger co-operates with a carrier rotating at constant speed and makes selective mechanical or electrical contact with two members on the carrier if the feeding speed of the web is fast or slow. As shown in Fig. 1, the plunger is adapted to energize alternative circuits for electromagnets 58, 59 actuating a pin 63 controlling a pawl 64 co-operating with a constantly moving toothed disc 65 to move a roller 70 in a direction to reduce the web tension and correct the registration. As shown in Fig. 2, the plunger strikes a member 102 or 103 when the tolerance is exceeded and these mechanically actuate arms which may control the pin 63 or vary resistance in series with an electric motor controlling the web speed.
Patent GB-740766-A (GB)
Title: Improvements in fountain pens with positioning means for the ink sacs thereof
Inventor: KLAGGES HENRY CLEMENS
IPC: B43K5/04
Filed: 1953-03-12
Abstract: 740,766. Reservoir pens. ESTERBROOK PEN CO. March 12, 1953. No. 6806/53. Class 146(3) A reservoir pen is provided with a support 15 for a collapsible sac 13 attached to a nib section 11. The support 15 is preferably of synthetic plastic material and is of U-shaped cross section so as to be disposed between the sac 13 and a barrel 12 to position the sac 13 concentrically with the barrel 12. The support 15 is located axialiy of the barrel 12 by a projection 15a engaging an annular groove 12a in the barrel. The groove 12a also houses a ring 19 carrying a lever 18 co-operating with a presser bar 16 which effects collapsing of the sac. The bar 16 is attached to a spring 17 having a lip 17b to limit movement of the lever 18 and a curved part 17a extended into a recess 15b in the support 15 to underlie the sac.
Patent GB-1507582-A (GB)
Title: Video display apparatus
IPC: H04N9/64
Filed: 1976-02-20
Abstract: 1507582 Television display apparatus INDUSTRIE A ZANUSSI SpA 20 Feb 1976 [27 Feb 1975] 06840/76 Heading H4T  The apparatus is designed so that it can be switched between operation as a conventional colour television receiver and operation in which symbols from a symbol generator, e.g. a television game-playing unit, are displayed. The apparatus includes a tuning unit 7 which passes signals from an aerial 6 to a detector unit 8. The detector feeds the received audio signal via a switch 12 to a loudspeaker 14. It also feeds chroma signals via a switch 15 to a chroma processor 16 which includes a sub-carrier generator 17. The processor passes colour difference and luminance signals to a decoder 22 which feeds colour signals to the display 26. Time base signals from the detector 8 pass via a switch 27 to sync separator 28 which feeds line and frame sync signals to oscillators 29, 30 connected to deflection circuits 31, 32. The symbol generator 34 is associated with a manual control unit 35. It receives the sub-carrier from generator 17 and emits sync and audio signals and also three colour signals which are fed to the display 26 via decoupling units 44-46. When a switch 33' is manually moved from contact a, in which the apparatus operates as a conventional receiver, to contact b the tuning unit 7 is disabled, the symbol generator enabled and switch 27 reversed. The sync output from the symbol generator now passes to sync separator 28. This output also causes switch 12 to be reversed, so that the audio output of the symbol generator passes to the loudspeaker, and switch 15 to apply a reference black level signal to the processor 16. The generated symbols now appear on the display. The generator may be built in to the apparatus or may be in the form of a plug-in card unit. Switch 12 may be omitted. Switches 15 and 27 and the decoupling units may be constituted by transistor circuits, Figs. 2-4 (not shown).
Patent GB-1029425-A (GB)
Title: Improvements in error checking arrangements for digital calculators and the like
Inventor: PUGMIRE JOHN MATTHEW
IPC: G06F11/10
Filed: 1963-02-20
Abstract: 1,029,425. Electric digital calculating. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 19, 1964 [Feb. 20, 1963], No. 6843/63. Heading G4A. Two operands from registers A, B (Fig. 1, not shown) are addressed to a storage device 1 which develops a result for recording in the register B together with any change of parity P resulting from the operation on the operand B. The operands are expressed in excess-3 code in registers A, B together with their parity bits and an operation is performed on the extreme right digit. The digits in the registers are shifted to the right by control unit 5 simultaneously with recording of the result at the extreme left of register B. The fixed store is preferably a number of transformers corresponding to the number of digits in the stored result. The store 1 is addressed via an addresser 2 and a decoder 3 in which the excess-3 code is expressed in two groups X, Y of one out of ten coding.
Patent GB-1449318-A (GB)
Title: Routing apparatus
IPC: B27C5/10
Filed: 1974-02-14
Abstract: 1449318 Routing apparatus B D SELFE 13 Feb 1975 [14 Feb 1974] 6861/74 Heading B5L Routing apparatus, which may be an attachment for an electric drill or alternatively (Fig. 4 not shown) include an integral electric drive motor, comprises an elongate frame 12 adapted to be attached or attached at one end to drive means for a rotary shaft 16 having a rotating cutter 17, and an arm 10 extending from the other end of the frame to provide an outer bearing for the shaft 16, the arm 10 having side surfaces 26, 27 which lie parallel to the shaft and have an included angle of 90 degrees or less and at least part of the frame adjacent the arm is confined between the planes of these surfaces. This allows the device to be used closely into the corners of, e.g. a window frame. A slotted plate 30 attached to the arm 10 provides for adjustment of the depth of cut while adjustable rollers 23 position the cutter relative to the edge of a workpiece. Spring-biased arcuately shaped guards 39, 40 are provided.