baber/WOPTO huggingface dataset:
Patent GB-1184339-A (GB)
Title: Attenuator
Inventor: BUTTON STANLEY GORDON
IPC: H01P1/22
Filed: 1967-04-13
Abstract: 1,184,339. Attenuators. G. & E. BRADLEY Ltd. 13 April, 1967, No. 17075/67. Heading H1W. A wide-band attenuator comprises series and shunt resistors in the form of thin films which together make up the live conductor of a constant impedance strip line. The series resistors R<SP>1</SP> 1 , R<SP>1</SP> 2 , R<SP>1</SP> 3 , R<SP>1</SP> 4  and shunt resistors R<SP>1</SP> 5 , R<SP>1</SP> 6 , R<SP>1</SP> 7 , R<SP>1</SP> 8 , R<SP>1</SP> 9  are made by depositing thin films of Ni-Co alloy on a glass substrate. Junctions between resistors are made by areas 31, 19, 20, 21, 22 of high conductivity of, e.g. chromium covered with gold. The shunt resistors are terminated by high-conductivity areas 33, 25, 26, 27, 28 which are connected to a groundplane (not shown) by conductive clips (not shown). The shunt and series resistances may be adjusted by altering the length of conductive tongues such as those shown at 29, 30. The glass substrate is spaced parallel to the base of a metal box which forms a ground plane, the spacing being adjustable. An abrupt change in impedance occurs at the output end of the section R<SP>1</SP> 1 , R<SP>1</SP> 5  which has a comparatively high loss. This is compensated by a transverse ridge in the ground conductor at the junction between section R<SP>1</SP> 1 , R<SP>1</SP> 5  and section R<SP>1</SP> 2 , R<SP>1</SP> 6 . Since most of the power is absorbed by R<SP>1</SP> 5 , the substrate is provided with a heat sink in the form of a sheet of alumina in the neighbourhood of this resistor. The substrate is carried upon a member made of plastics material which is supported above the base of the metal box by screws at either end. One of these screws serves to earth the conductive area 33. The attenuator is provided with tappings 10<SP>1</SP>, 11<SP>1</SP>.
Patent GB-1148812-A (GB)
Title: Process for automatically performing length measurements and self-calibrating measuring and sorting apparatus for carrying out the process
IPC: B07C5/08
Filed: 1966-04-19
Abstract: 1,148,812. Measuring dimensions. CENSOR, PATENT-UND VERSUCHSANSTALT. 19 April, 1966 [22 April, 1965], No. 17134/66. Heading G4H. In apparatus for measuring dimensions of the type in which each object to be measured on entering a gauge displaces a sensing head, the displacement of the sensing head being converted into an electrical signal, master specimens are periodically introduced into the gauge, the electrical signals then generated being used to correct errors in the measuring apparatus due to changes of, for example, temperature. In the embodiment described (Fig. 2) the objects are fed from a hopper 1 to a turntable 3 on which they are carried to the gauge 9. A sensing head 8 which is displaced upwardly by the object moves a core 11 so that the self inductance of two coils 12, 13 is altered and consequently the amplitude of the A.C. voltage applied to an amplifier 23. This voltage after rectification controls an indicating instrument 26 and bi-stable devices 27-32, each bi-stable device corresponding to a predetermined value of the voltage. One of the solenoids 34-39 is then actuated to move its associated deflector blade 134-139 so that the object in the gauge falls into the right container. When a master specimen is measured a switch 154 is altered so that the electrical signal generated is applied to bi-stable devices 327-331. If the bi-stable device 329 is energized indicating that the apparatus is functioning normally additional test specimens are fed to the turntable 3. If either of the bi-stable elements 328 or 330 are energized a pulse is applied to stepping motor 57 to move the slide of a potentiometer 16 through one step. The master specimen is then again measured and the process repeated until the meter registers the required norm. If however either of the bi-stable devices 327 or 331 are energized the drive of the testing apparatus is de-energized. Intermediate containers may be included (Fig. 3, not shown) so that if the measuring apparatus is incorrect the specimens which have been measured since the previous master specimen was fed to the machine may be re-tested.
Patent GB-954099-A (GB)
Title: Improvements in or relating to the manufacture of fine grids
Inventor: ELLIS JOHN EDWARD
IPC: H01J29/39
Filed: 1962-05-04
Abstract: 954,099. Cathode-ray storage tubes. MULLARD Ltd. May 4, 1962, No. 17244/62. Heading H1D. In a method of manufacturing a chargestorage grid, a radiation-hardenable material containing a dielectric is deposited on one side of an apertured, conductive matrix, so that the apertures receive material T but are not filled thereby. The matrix is then exposed to radiation from the opposite side so as to harden the material T within the apertures while leaving material shielded by the matrix unaffected, this material then being removed. According to a preferred method, an electroformed nickel sheet is sprayed on one side with a suspension of talc in a solution of polyvinyl alcohol in a mixture of methyl alcohol, ethyl alcohol and water, together with a sensitizer made up as a solution of ammonium dichromate in water. After exposure from the opposite side with ultra-violet light, the unexposed material is removed by use of a water jet. To obtain thicker deposits within the apertures, the whole process may be repeated from the same side or from the opposite side. Finally, the hardened resist is baked away to leave the talc deposit. The grid may be used in a charge storage tube of the kind described in Specification 954,098.
Patent GB-438703-A (GB)
Title: Improvements in or relating to milking machines
IPC: A01J5/04
Filed: 1935-06-17
Abstract: 438,703. Cow - milkers. AKTIE- 130LAGET SEPARATOR, 8, Fleminggatan, Stockholm. June 17, 1935, No. 17373. Convention date, July 14, 1934. [Class 84] A releaser for milking-machines comprises a chamber 1 for constant pressure and a chamber 11 on a lower level for pulsating vacuum and atmospheric pressure, a valve having a liquid seal for preventing air flowing from one chamber to the other being provided between the chambers and opening into the lower chamber 11. In one form, the chamber 1, Fig. 1, has a vacuum connection 3 and a milk connection 2, and the chamber 11 a connection 13 for pulsating vacuum and atmospheric pressure. The valve consists of a disc 6 which makes a joint against a rubber seat 7 and has a flange 8 extending down into an annular pocket 9 forming the liquid seal. A rubber, celluloid, &c. float 10 closes vacuum connection 3 when chamber 1 is filled with milk. The chamber 11 has at its lower end a flap valve 14 enclosed in a housing 15 ending in a spout. Chamber 11 and housing 15 are connected to chamber 1 by detachable clamps 16. In a modification, Fig. 2, chamber 1 ends in a tube 17 opening into a bowl 18. A horizontal wall 20 extends between the tube 17 and the bowl 18 and has apertures 21 which are covered by an annulus 22 forming a valve member the upper movement of which is limited by a shoulder 23.
Patent GB-1128335-A (GB)
Title: Vehicle cooling systems
IPC: B60K11/06
Filed: 1965-04-24
Abstract: 1,128,335. Engine cooling arrangements. N. KERSHAW. 7 April, 1966 [24 April, 1965], No. 17379/65. Heading B7H. A shield 22, for use in a vehicle with a transverse engine 10 and a water-cooling radiator 19 adjacent a vehicle wheel but within an engine enclosure 17, comprises a generally rectangular main panel having a main cold air opening 31 near one end and a lateral deflector plate 27 projecting perpendicularly from the main panel at the side of the opening 31 remote from the adjacent end and disposed parallel to this end, adapted for location within the engine enclosure with the plate 27 projecting between the radiator 19 and the engine where it directs cooling air entering the enclosure to the radiator 19 and away from the engine 10. The shield comprises a projecting panel 27, 28 at each side of the engine 10, a lower flange 25 and openings 31, 35 adjacent the ends 14, 15 of the enclosure. The openings may be partially or wholly closed to adjust the cooling to the ambient conditions by movable shutters 32, 36 which are slidable manually from inside or outside the vehicle or automatically by a thermostat sensitive to the radiator water temperature. The shutters may be replaced by series of pivotable slats.
Patent GB-1086051-A (GB)
Title: A method of assembling the core of a nuclear reactor
Inventor: HOSKINS LEONARD MAXWELL
IPC: G21C1/30
Filed: 1963-05-02
Abstract: 1,086,051. Reactors. FAIREY ENGINEERING Ltd. July 24, 1964 [May 2, 1963], No. 17397/63. Heading G6C. A zero power reactor comprises a core 10 of two parts, i.e. an outer annular part 12 and a removable inner part 13 of octagonal crosssection. A thermal shield 14 as disclosed in Specification 1,086,056 forms the inner surface of the core part 12 and owing to the small clearance between the shield and core part 13 the inner part 13 is lowered into the part 12 by first installing a guide pole 32, this pole co-operating with a central passage extending through the part 13. The lower end of pole 32 is secured to a cover 19 of the pressure vessel 11 by a bearing 34 and an intermediate portion of the pole is secured by a frame 38, a shackle 35 at the upper end of the pole extending above a gantry 30 temporarily mounted on the pressure vessel cover 28. The core part 13 is initially lowered by suspension eyes 47 to the chain-line position 13<SP>1</SP>. A support 36 for the upper end of the pole is bolted into place and the frame 38 is removed, lowering of the core part then being continued until it rests on an annular support 23. The tube 32 and gantry 30 are now removed. In normal use the central passage through the core part 13 receives a removable sample tube (Fig. 1, not shown) as disclosed in Specification 1,086,057 in which tests on samples may be performed.
Patent GB-1424656-A (GB)
Title: De-clutch mechanism for a rotatable shaft
IPC: F16D21/00
Filed: 1974-04-22
Abstract: 1424656 Clutch control; cams PHILADELPHIA GEAR CORP 22 April 1974 [24 Aug 1973] 17454/74 Headings F2L and F2K A positive clutch arrangement between a powered driving shaft 30 or a manually rotated shaft 51 and an output shaft 36 comprises a sliding sleeve 33 splined to sleeve 36 via a sleeve 34 and biased by a spring 29 to engage teeth with teeth of a clutch element 37 on the driving shaft 30, cam means 21a, 21b, 21c operating on rotation of manually rotated shaft 57 to move sleeve 33 to disengage it from clutch element 37  and engage teeth 35 with teeth 65 of a gear on manual input shaft 51, and latch means 64, 53 (Fig. 3) holding the clutch in this position until the powered shaft 30 is rotated. On rotation of shaft 51 a pin 22 on the shaft engages the cam elements (rotatably mounted on shaft 51) 21a, 21b, 21c and rotates them till the nose of cam 21a engages a roller 23 of a lever 66 which pivots a shifter cartridge 79 (Fig. 3). The cartridge 79 is connected by a spring biased pin (71) (Fig. 5, not shown) to a fork cartridge 60 (Fig. 3) which, when pivoted, pivots a fork 62 having rollers 52 which engage a groove of the sliding sleeve 33, so that the clutch between sleeve 33 and element 32 is disengaged and teeth 35 engage teeth 65 for transmission of manual drive. The clutch is held in this position by means of a latch 64 which pivots with fork 62 and a spring-pressed member 53 (Figs. 5 and 6, not shown) which springs up behind latch 64 to hold the teeth 35, 65 engaged. On rotation of power input shaft 30 a cam 14 on clutch member 32 engages a lever 12 which, against bias of a spring 54, pivots with latching member 53 about a shaft 10 to release latch 64 and allow spring 29 to pivot, through rollers 52, the lever 62 and reengage the clutch between members 32, 33, disengaging teeth 35 from teeth 65. This pivoting of lever 12 also disengages the pin interconnecting levers 66 and 62 (through a lever 72, Fig. 1, not shown) to allow the reengagement of the clutch between members 32, 33, to transmit the power drive, even if the nose of cam 21a prevents a full return of follower 23. The driven shaft 36 may drive the worm of a valve operating mechanism. A cam assembly, shown in Fig. 7, comprises three members, 21a, 21b, 21c, rotation of member 21c by a pin 22 causing axial separation with cam member 21a held against rotation by a follower roller 23, which roller is moved axially, to pivot lever 66. Apertures AR, BR and CR co-operate with abutments as shown to limit the camming action.
Patent GB-184948-A (GB)
Title: Process of treating titanium ores containing iron
IPC: C22B1/08
Filed: 1921-06-27
Abstract: 184,948. Carteret, G., and Devaux, M. June 27, 1921. Titanium chloride. nxide, and sulphate. - Titanium ores containing iron are reduced and chlorinated in such a manner that the titanium chloride is obtained separately from the other products of the process. For the preliminary reduction, the ore, which may be briquetted by means of a fatty or tarry material, is heated in a retort at 800‹ C. for one or two hours in presence of a slow current of reducing gas. Carbon may be added in addition to the fatty or tarry mate. rial, and it is then sufficient to commence the reduction in a reducing-atmosphere without maintaining a current of gas through the retort. The reduced charge is allowed to cool, and a current of dry chlorine introduced. The furnace, of whatever form, is provided with two opposed openings A, B. Chlorine is first passed, for example, in the direction A, B, the furnace being heated to 350‹ C. At this temperature, the iron only is attacked, and the ferric chloride formed passes out through the opening B and is collected. The direction of the chlorine current is then reversed and the temperature raised to 550-600‹ C. The titanium is attacked, and titanium chloride, contaminated with traces of iron, silicon, &c. passes out through A. The titanium chloride is purified by distillation, and may be used for the preparation of titanium sulphate and oxide. For example, it may be dissolved gradually in dilute sulphuric acid, yielding the sulphate, or the solution so obtained may be diluted and boiled to yield the hydrated oxide. The hydrochloric acid evolved in this last process is collected in an alkaline solution, which is then electrolyzed to regenerate chlorine and alkaline solution for re-use. The sulphuric acid resulting from the sulphate may be used to treat a further quantity of chloride, thus rendering the process cyclic. Alternatively the titanium chloride may be dissolved in cold water, and the solution neutralized, for example with caustic soda, whereby a precipitate of titanium oxide is obtained, together with a solution of alkali chloride which is electrolyzed, as before. The ferric chloride obtained may be heated to recover chlorine for re-use, or it may be dissolved and reduced by means of iron sulphide, the sulphur separated by filtration, and the solution electrolyzed to recover a further quantity of chlorine.
Patent GB-1371427-A (GB)
Title: Gas fuelled lighter
IPC: F23Q2/16
Filed: 1972-04-17
Abstract: 1371427 Gas-fuelled lighters FLAMAGAS SA 17 April 1972 [11 Dec 1971] 17535/72 Heading F4F  A gas-fuelled lighter comprises a hollow main body 1, Fig. 7, forming a fuel reservoir 2, a lower end of the body 1 having a stopper 32 friction-welded thereto and provided with a fuel-refill valve 80, 81, a pocket in the upper end of the body 1 containing a fuel-release valve which is operable by a lever 55 urged by a spring 65 to close the release valve, a lever stop 10 preventing over-travel of lever 55, and an ignition mechanism 93, 95 removably located in a recess in the exterior of body 1 adjacent the release valve. The body 1 is of transparent or translucent plastics material. The refill valve comprises a valve member 80 having a grooved upper part 81 and urged by a spring 79 to close the valve by exerting pressure on a sealing gasket 86, the valve being opened by urging a rod part 84 of member 80 upwards. Liquifiedgas fuel in reservoir 2 passes via a wick 72 through groove 69 in a member 66 to the gasrelease valve which comprises a burner tube 43 movable in a cylindrical part 38 sealed in said pocket by an 0-ring 49 and compressing a foamed polyurethane disc 71, members 44, 45 allowing adjustment of the compression of disc 71 to vary the flame size. The gas-release valve is opened by moving tube 43 upwards by a lever 55 engaging in a groove in tube 43 and urged by a leaf spring 65 to the closed position in which tube 43 acts on a resilient sealing member 41. A hollow wedge-shaped projection 10 on body 1 acts as said lever-stop, the lever 55 being pivoted between two upward projections (17), 16, Fig. 2 (not shown) and Fig. 1, on the top of body 1. Projections 16, (17) have vertical guide grooves leading to recesses 28 in which inward projections on a removable top cap 29, Fig. 1, normally engage. The igniter comprises a cylindrical member 87 having a projecting rib (9a), Fig. 12 (not shown), locating in a groove in said recess. Member 87 houses a spring 94 urging a flint 93 against a knurled rotatable sparkproducing wheel 95.
Patent GB-1172844-A (GB)
Title: Improvements in or relating to Calculating Machines
Inventor: DRAGE JAMES JOHN
IPC: G06F7/498
Filed: 1966-04-22
Abstract: 1,172,844. Calculators; decimal point position control. BELL PUNCH CO. Ltd. 19 April, 1967 [22 April, 1966], No. 17641/66. Heading G4A. In an electric digital calculating machine comprising two multistage registers, each of which includes a decimal point counter and one of which has means for visually indicating the number stored therein together with the position of the decimal point, means are provided for deriving the decimal point position corresponding to the result during arithmetic calculations involving the contents of said registers. The invention is a development of the electronic keyboard calculator disclosed in Specifications 1,042,785 and 1,172,842 to allow for variable decimal point positions in the calculations. The calculator comprises one visual register (the contents of which are displayed by means of number tubes) and two store registers. Each register comprises a plurality of decimal counting stages and includes a further stage for counting the position of the decimal point in the associated register. The keyboard preferably comprises a single set of 10 digit keys and a number of function keys whereby the four rules of arithmetic and left and right shifts may be selected. In addition calculations, a number of pulses equal to the complement of the value in decimal point counter (D.P.C.) of a selected one of the store registers is added into the D.P.C. of the visual register whereby this counter stores the complement of the difference in the decimal point positions. This result is then used to advance the timing circuit associated with the visual register a number of steps whilst the timing circuit associated with the store register is inhibited so that in the subsequent addition process stages of corresponding significance will be added together. The number with the most digits before the decimal point must initially be in the store register. The sum is stored in the store register the D.P.C. of which remains unaltered to indicate the decimal point position of the sum. Subtraction takes place in a similar manner. In multiplication, the contents of the D.P.C. of the selected store register is added into the D.P.C. of the visual register (effectively shifting it to the right) to indicate the resultant decimal point position of the product which is stored in the visual register. In division, the complement of the number in the D.P.C. of the store register is added to effectively shift the decimal point position to the left; the process being otherwise similar to multiplication. Shift-left is achieved by adding 9 pulses into the relevant D.P.C. and shift-right by adding only one pulse. The visual register comprises thirteen stages and the store registers each comprise eleven stages. The most significant stages are only used in case of overflow. The ten states of the D.P.C. in the visual register define the ten possible decimal point positions between stages R12 and R2, the count increasing as the decimal point moves to the right.
Patent GB-813536-A (GB)
Title: Electric torque motors
Inventor: JONES SYDNEY
IPC: G01C19/30
Filed: 1955-06-17
Abstract: 813,536. Induction motors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 15, 1956 [June 17, 1955], No. 17645/55. Class 35. A torque motor for precessing a gyroscope with a torque whose direction and magnitude are dependent on phase and magnitude of a single-phase signal current comprises a thin magnetic part-sphere 1 pivoted about 1a and a stationary wound member 2 producing rotating and pulsating fields. The rotating flux is produced by a strip-wound annular member 4 carrying a two-phase winding 9 in radial slots, the gyroscope gimbals preventing rotation of the part-sphere about the axis of the stator. The single-phase flux is produced radially between annular poles 5, 6 of a strip magnetic circuit 3. The magnetic part-sphere is coated with copper or aluminium.
Patent GB-418124-A (GB)
Title: Improvements in paper bags
IPC: B65D33/10
Filed: 1934-06-14
Abstract: 418,124. Paper bags. FRIEDMAN, W., 7, Chilworth Street, Paddington, London. June 14, 1934, No. 17654. [Classes 94 (ii) and 133.] A paper bag, which may be lined, for coal &c., of quadrangular cross section, is provided with two handles B attached to opposite side walls, which may be reinforced, sufficiently far below the top edge of the bag as to leave, above the places of attachment, an adequate width of paper for closing the bag by folding the top parts inwards, the paper above the handles being unslit with joints at all four corners. The bag may be sealed by a seal C. Specifications 645 /06 and 11084/08, [both in Class 94], are referred to.
Patent GB-582695-A (GB)
Title: Improvements in or connected with fishing reels
IPC: A01K89/01
Filed: 1944-10-16
Abstract: 582,695. Fishing reels. YOUNG, J. R, YOUNG, H, and YOUNG, E. E., (trading as YOUNG & SONS, J. W.). Oct. 16, 1944, No. 17739. [Class 48] For winding in the line of a fishing rod; a spindle c' is rotated by hand, to revolve a drum a, carrying a flyer a<2>, gearing c', c<1>, and simultaneously reciprocating a line reel b through an eccentric c<5> and bell-crank f<1>, f<3>. A handle may be attached to either end of the spindle c', for right or left-handed winding. The drum a is mounted on a sleeve c to which the worm c<1> is connected. A spring g' co-acts with the eccentric c<5> and a pin d' on the spindle d, to take up any slack. A thrust bearing a<1> is provided for the drum a.
Patent GB-1581433-A (GB)
Title: Scouring cleansers
IPC: B24D3/00
Filed: 1976-04-30
Abstract: The novel scouring composition contains a surface-active agent and an abrasive powder. In this, less than 10 per cent by weight of the particles in the abrasive powder have a particle size above 150  mu m and less than 20 per cent by weight have a particle size below 10  mu m. The abrasive powder has, in particular, a hardness of from 1 to 4 on the Mohs' scale of hardness; it is preferably calcite. The abrasive powder advantageously has a particle size distribution curve within the region between the curves X in the figure, and even better within the region between the curves Y in the figure. The scouring composition is in the form of a free-flowing powder or liquid composition. <IMAGE>