baber/WOPTO huggingface dataset:
Patent GB-691074-A (GB)
Title: Improvements in or relating to seam fusion-welding machines
Inventor: PARKER FREDERICK HERBERT
IPC: B23K9/028
Filed: 1950-11-14
Abstract: 691,074. Welding by fusion. BRISTOL AEROPLANE CO., Ltd. Nov. 12, 1951 [Nov. 14, 1950], No. 27852/50. Class 83 (iv). In a welding-machine having a welding head and means for feeding filler wire to the weld, a driving member movable along a straight track has a traction or propulsive connection with a welding head assembly, adapted to run or slide on the work, which permits movement of the assembly towards or away from the straight track to allow for curvature of the work. In an embodiment for use in welding the skins 29 of an aircraft wing 28 a fourwheeled trolley 17 is moved along a track 18 by a chain 19 driven by a stationary variablespeed motor or by a stationary motor through variable-speed gearing and is connected by a link 16 to a welding head assembly 10. The link 16 has a simple pivoted connection 24 with the trolley 17 and a rotatable pivoted connection with the assembly 10 but both connections may have two or three axes of free movement. The assembly 10 comprises an argon-shielded tungsten electrode 26 in a head 11 adjustably connected to a framework 12 on which is mounted a filler wire feed and cleaning device as described in Specification 689,117 and a filler wire support 41. The assembly 10 is slidable on the work by means of rollers 38 adjustably mounted on the frame 12 and members 31 on either side of the electrode 26. The members 31 engage by rubbing members 32 and 33, guide strips 34 placed on the work to clamp the work. The trolley 17 may carry its driving motor which may drive on a stationary chain.
Patent GB-824510-A (GB)
Title: Improvements in or relating to liquid meters
IPC: G01F3/20
Filed: 1957-09-04
Abstract: 824,510. Liquid meters. LJUNGMANS VERKSTADER A.B. Sept. 4, 1957 [Sept. 15, 1956], No. 27884/57. Class 69 (2). A liquid meter has a piston or diaphragm whose rod 5 actuates a slide valve 12 which connects one side of the piston or diaphragm to supply and the other to exhaust, and at the end of each stroke reverses the connections. An arm 16 is pivoted at 17 and a slit in its lower end moves on a pivot 15 on the rod 5. Shoulders 19, 20 on the arm 16 co-operate with pins 21, 22 on spring-loaded pawls 23, 24. A plate 28, pivoted at 27, is connected by a spring 34 to the rod 15 but is retained in position by one or other of the pawls 23, 24 until, at the end of the stroke, the pawl is moved by shoulder 19 or 20 and the plate 28 moves over to its other position. Pins 31, 32 are so arranged on plate 28 that valve 12 is pushed over by them only after the plate has gained momentum. The length of stroke of the piston or diaphragm can be altered by moving the position of pivot 17.
Patent GB-773357-A (GB)
Title: Improved apparatus for collecting liquid samples
Inventor: ALM RASMUS STRANDE
IPC: G01N1/18
Filed: 1955-09-30
Abstract: 773,357. Filling containers with liquid. LKB-PRODUKTER FABRIKSAKTIEBOLAG. Sept. 30, 1955, No. 27908/55. Class 125(2). [Also in Group XVIII] An automatic liquid sample collector comprises test tubes 8 arranged in a plurality of adjacent rows R1, R2, R3 and R4, a delivery device 11, 12 for delivering sample liquid into the test tubes, and a driving mechanism for moving the device 11, 12 and the test tubes 8 relatively to each other step by step, the test tubes being arranged in a plurality of separate holders 6 and the driving mechanism being arranged to deliver sample liquid into all the test tubes of one holder in consecutive order before delivering sample liquid into the test tubes of an adjacent holder. In the preferred embodiment, liquid from a pipe 13 which may be connected to a filter column drips into a cup 11 until it has risen to the level of the upper bend of a siphon 12 when the contents of the cup are automatically discharged into a test tube. The cup 11 is mounted on a balance 14, 15 which is caused to pivot by the filling and emptying of the cup 11 to operate a switch 24 controlling a motor 29 through a control unit 43 so that the motor shaft 27 stops after rotating through an angle of 45 degrees. A cam 26 mounted on this shaft turns a shaft 18 carrying the balance 14, 15 so that the delivery device 11, 12 is positioned over a test tube in the next row. When row R1 or R4 has been reached a cam 28 closes a switch 36 which enables a motor 5 to be energized the next time the switch 24 is closed so that a table 2 carrying the holders 6 is rotated under control of a unit 14 until the next radial row of test tubes is below the delivery device 11, 12. The test tube holders may be arranged in a straight line with relative movement in two perpendicular directions between them and the delivery device. The latter may also be replaced by an electronic drop counter or the movements may take place at equal time intervals with a continuous drip feed from the tube 13.
Patent GB-1091490-A (GB)
Title: Improvements in or relating to headsets
Inventor: GAYFORD MICHAEL LAWRENCE
IPC: H04R1/10
Filed: 1966-06-22
Abstract: 1,091,490. Headsets. STANDARD TELEPHONES & CABLES Ltd. June 22, 1966. No. 27936/66. Heading H4J. A headset comprises a resilient neckband 14 (Fig. 1) having at each end earphone housing members 2 which extend outwardly from the outer face thereof and earphones 8 (see also Fig. 5) mounted within the members 2 such that limited universal movement is provided for the earphones 8. Each housing member 2, which may or may not have an end cap, has a concave spherical seating 4 divided into four sectors by slots 5. The earphones 8 have matching convex spherical seatings 6 and each such seating has four projections 7. In fitting the earphones 8, the projections 7 are aligned with the slots 5, the earphones 8 are inserted into the members 2 until the concave and convex seatings 4 and 6 touch and the earphones are then turned through an angle of approx. 45 degrees. When fitted, the earphones 8 are each retained by a pin (not shown) at each end of one of the four sectors. Thus limited universal adjustment is provided fitting the headset to various head sizes. The front faces of the earphones 8 have high density P.V.C. foam earpads 13 having a thin outer skin. Pads 11A and 12A of similar material provide protection when the headset is in use. One form of headband 27 (Fig. 3) is arcuate and has an enlarged end 28 with a P.V.C. pad 29. The other end has raised serrations 33 which engage female serrations in a cover 24 at the middle of the neckband 14. The neckband is then preferably divided into two halves 15, 16 which are retained in a bracket 54 and urged together by a spring 22. Alternatively, holes 10 at each end of the neckband 14 permit fitting a U-shaped headband (33), Fig. 2 (not shown), having a protective P.V.C. foam pad (35) at its widened base. Each end of the U has raised serrations (36) and the ends fit into mounting brackets (31) having female serrations permitting adjustment of the headband. A boom microphone attachment comprises a boom microphone (37), Fig. 4 (not shown), and a bracket (38), the latter having raised serrations and fitting into an aperture (58) in the boom. Female serrations in the boom provide adjustment of the microphone (37). The boom microphone attachment is fitted to the headset 14 by locating a hole (40) over a tubular member 3 and securing it by a spring clip fitted into a hole 3A. A pin (41) on the bracket (38) locates in one of two dimple holes 52 in the headset 14, one dimple hole 52 being used to locate the boom microphone (37) in the operating position and the other being used for location in the non-operating position. The tubular members 3 may alternatively be used for attaching an oxygen mask unit including a microphone. Each earphone 8 (Fig. 5) has a perforated front plate 45 fitting an annular groove 59 in the earpad 13. Plate 45 is covered with removable chamois leather 47. The receiver unit 42 is secured to plate 45 and centred by a P.V.C. foam ring 50. The free space around the unit 42 is filled with sound-absorbent fibreglass.
Patent GB-1355971-A (GB)
Title: Pulp fibreizing grinding plate
IPC: D21D1/30
Filed: 1971-06-15
Abstract: 1355971 Disc mills R B REINHALL 15 June 1971 [30 July 1970] 27973/71 Heading B2A A sector-shaped plate 10, for constructing a grinding disc for a disc refiner, comprises ribs 15 arranged on the segment face which are flatter towards the centre, i.e. are bevelled as at 40 and have steeper sides towards the circumference 22, and form between them channels 29 which become narrower towards the outside, ie. in the downstream direction of stock flow. The channels 29 are blocked by dam ridges 37. The ribs are arranged along arcs whose centres lie on a circle 27 between the notional centre of curvature 18 of the disc (of which the segment forms a part) and the circumference 22 of the segment; the circle has a radius between 50% and 90% of the radius of the arc 20 which defines the beginning of the working area of the segment. Each rib has an angle to radii as would be drawn from the centre of a disc made of the plates increasing from between 0 and 60 adjacent the inner edge to between 65 and 90 adjacent the outer edge.
Patent GB-1403743-A (GB)
Title: Antioxidant composition
IPC: C10M169/00
Filed: 1972-06-15
Abstract: 1403743 Lubricant BRITISH PETROLEUM CO Ltd 22 May 1973 [15 June 1972] 28061/72 Heading C5F An antioxidant composition comprises (a) a diaryl secondary monoamine in which at least one of the aryl groups is alkyl aromatic, and (b) a sodium or potassium oxide, hydroxide, halide or alkoxide. The invention also comprises a lubricant base oil containing up to 10 wt. per cent of the antioxidant composition. The base oil may be mineral or synthetic, e.g. an ester containing at least 2 ester linkages. The amine may be a mono- or di-alkyl substituted diphenylamine or phenylnaphthylamine, e.g. p,p<SP>1</SP> 8 dioctyldiphenylamine or p - octylphenyl naphthylamines. Specified ester bases are neopentyl dipelargonate, di-(2<SP>1</SP>,2<SP>1</SP>,4- trimethylpentyl)sebacate, 2,2,4 - trimethylpentyl - 2,2,7,7 - tetramethyl suberate, caprylic acid/trimethylol propane/sebacic acid complex ester, and esters of pentaerythritol with a mixture of C 5 -C 11  monocarboxylic acids. In one example, bis-benztriazole is also incorporated.
Patent GB-852229-A (GB)
Title: Summing network
IPC: G06G7/14
Filed: 1958-09-02
Abstract: 852,229. Electric analog calculating systems. LEAR Inc. Sept. 2, 1958 [Oct. 11, 1957], No. 28098/58. Class 37 A summing network for separate signals comprises first and second electronic switching devices, means for applying voltages to render the switching devices alternately conducting, the switching devices having respective input circuits to which the separate signals are applied and also respective output circuits; capacitative apparatus in the respective output circuits connected to a point of reference potential, third and fourth electronic switching devices respectively coupled to the first and second switching devices; means for applying voltages to render the third switching device alternately conducting with respect to the first switching device and to render the fourth switching device alternately conducting with respect to the second switching device, the third and fourth switching devices having output connections to a common junction; and output circuit means coupled to such common junction. In Fig. 1, cyclical input signals S 1 , S 2  are applied between reference or earth potential and the collectors of transistors 10, 12 whose emitters are respectively connected to the emitters of transistors 22, 28; the junctions 30, 32 being earthed over capacitors 34, 36 and the collectors of transistors 22, 28 being connected from point 42 to earth over the primary of output transformer 46. The primary of A.C. energized transformer 50 is shunted by a double anode Zener diode 54, 56 for square wave energization, and secondaries 58, 60 are connected between the base and collector electrodes of transistors 10, 12 over limiting resistors 62, 64 while the centre tap of secondary 70 is returned to point 42 and the ends are connected over limiting resistors 74, 76, to the base electrodes of transistors 22, 28. The latter are alternately conducting, while transistors 10, 12 are also alternately conducting with respect to each other and also with respect to transistors 22, 28. It is shown (Fig. 2a-2c not shown) that on positive reference half-cycles capacitance 34 is charged to the average potential value of the concurrent positive half cycle of S  1 , and on negative reference half-cycles capacitance 36 is charged to the average potential value of the concurrent negative half-cycle of S 2 ; and such charges are switched on alternate reference half-cycles to point 42 so that transformer 46 develops an output squarewave representing in peak-to-peak amplitude the sum of S  1  and S 2  if cophased and the difference is antiphased. In a modification (Fig. 3 not shown) deriving an output signal representing in amplitude the sum of the first derivatives of S  1  and S 2 , differentiating capacitors are inserted between capacitances 34, 36 and the emitters of transistors 22,28. Rectifying diode bridges may replace transistors switching in response to the alternating reference voltage.
Patent GB-973760-A (GB)
Title: Improvements relating to coin-exchanging apparatus
Inventor: NIXON DAVID
IPC: G07F5/24
Filed: 1962-07-23
Abstract: 973,760. Change-giving apparatus. MANIX DEVELOPMENTS Ltd. Oct. 22,1963 [July 23, 1962], No. 28260/62. Heading G4X. A change dispensing machine has a coin track 11,12,13,14, coins inserted into the machine being admitted to the track at points according to denomination so that each coin passes that number of the sensing elements 17,18,19, 20, 21, corresponding to its value.The sensing elements may be photo-cells but are shown as microswitches connected in parallel between a battery 30 and a coin ejecting solenoid 26. The arrangement illustrated dispenses sixpences from the inclined storage tube 23 as change for half-crowns, florins and shillings. A single coin slot may be provided, a sorting rail 2 guiding half-crowns to testing device 9 beyond which they travel the length of the track to operate all five switches. Florins, after testing at 8 are injected into section 12 of the track to operate four switches. Shillings are tested at 7 and enter the track in section 13 to operate the last two switches. The coin sorting rail is not necessary if a coin slot is provided for each coin. Change may be made up of shillings, sixpences, threepenny bits, and pennies, given in exchange for half-crowns down to threepenny bits. A relay circuit is described (Fig. 3 not shown) whereby a series of six microswitches along the track govern such a dispensing scheme. It is stated that the composition of the change received may be chosen by the position of selector switches set by the user.
Patent GB-938047-A (GB)
Title: Improvements in or relating to yellow monoazo pigments
Inventor: CONLEY JOSEPH WILLIAM
IPC: C09B29/32
Filed: 1961-08-04
Abstract: The invention comprises the yellow monoazo pigments of formula <FORM:0938047/IV(a)/1> wherein R is a <FORM:0938047/IV(a)/2> radical or an <FORM:0938047/IV(a)/3> radical.  They are prepared by coupling diazotized 4-chloro-2-nitro-aniline with acetoaceto-p-phenitidide or -o-anisidide.  The pigments are used to colour paints, inks and pencil leads.  Examples describe the preparation of the pigments and also the preparation of the known pigments 4-chloro-2-nitro-aniline--->acetoacetanilide and m-nitro-p-toluidine-->acetoacetanilide.
Patent GB-1457219-A (GB)
Title: Refractory bricks
IPC: F27D1/06
Filed: 1975-07-05
Abstract: 1457219 Refractory bricks WILLIAMSON CLIFF Ltd 5 July 1975 28441/75 Addition to 1419026 Heading F4B  A refractory brick as in Specification 1,419,026 in which two opposed side walls of the recess have projections 20 to reduce the possibility of the infill falling out, and the portions 22 of the side walls which adjoin the base 24 of the recess are arcuate. Instead of projections the side walls may have cavities.
Patent GB-1058345-A (GB)
Title: Anti-knock-back vehicle brake mechanism
IPC: F16D55/24
Filed: 1965-07-06
Abstract: 1,058,345. Disc brakes. AIRHEART PRODUCTS Inc. July 6, 1965 [Dec. 21, 1964], No. 28527/65. Heading F2E. To maintain a predetermined clearance which will not be affected by " knock-back " a brake-actuating device similar to that shown in Fig. 1 of Specification 984,246 is provided with a greater clearance between the face 40 of piston 17 and the end 31 of the adjusting member 19. A light spring 42 is provided to return the piston after the knock-back. The spring is unnecessary in brake systems employing a residual hydraulic pressure. The shank 21 of the actuating member 19 provides a visual indication of the position of that member. The effective area of the part 19 is such that if initially the clearance between pad 11 and disc 12 does not exist the part is moved rightwards by the fluid pressure to re-establish the clearance when the fluid pressure is released.
Patent GB-982227-A (GB)
Title: Improvements relating to radial seals for rotary-piston internal combustion engines
IPC: F01C19/10
Filed: 1963-07-18
Abstract: 982,227. Rotary-piston internal combustion engines. DAIMLER-BENZ A.G. July 18, 1963 [July 24, 1962], No. 28546/63. Heading F1F. A radial seal for a rotary-piston I.C. engine of trochoidal type comprises a one-piece U-section sealing strip 6 disposed in a groove 5 in which is secured a guide part 14 having a tongue 13 located between the limbs 12, 12<SP>1</SP> of the sealing strip. The sealing strip is urged radially outwards into contact with the inner surface 8 of the engine housing 9 by springs 15 and by gas pressure which is reduced to about half that normally acting. Assuming the gas pressure in the working chamber 10 to be higher than that in the working chamber 11, the strip is pressed so that its limb 12 is in sealing contact with the tongue 13 thus isolating the under face of the limb 12<SP>1</SP> from gas pressure. Pressure-relieving grooves 20 on the outer surfaces of the limbs permit pressure equalisation on that limb not bearing against the tongue 13. The total clearance 16 between the tongue 13 and the inner faces of the limbs 12, 12<SP>1</SP> is made one half the total clearance 17 between the flanks of the groove 5 and the outer faces of the limbs 12, 12<SP>1</SP>.
Patent GB-965076-A (GB)
Title: Improvements in lighting systems for road vehicles
IPC: B60Q1/14
Filed: 1959-08-21
Abstract: 965,076. Vehicle headlamp systems. R. P. H. HINDS. Nov. 21, 1960 [Aug. 21, 1959], No. 28642/59. Heading F4R. A lighting system for road vehicles comprises two pairs of headlamps, each having two filaments which can be energized alternatively, and switching means for selectively controlling the energization of the filaments. Each headlamp comprises a main filament at the focus and an auxiliary filament in an out of focus position. The switching means may put in circuit (1) the main filaments of one pair of headlamps and the auxiliary filaments of the other pair; (2) the main filaments of the latter pair only; or (3) the auxiliary filaments of the first mentioned pair only. These auxiliary filaments may be located on the optical axis of the lamps in front of the main filaments, a cup-shaped shield being arranged below them to screen the lower half of the reflector. Alternatively, transverse filaments arranged above the level of the main filaments may be used.
Patent GB-221116-A (GB)
Title: Improvements in or relating to bowing mechanism for self playing stringed instruments
IPC: G10F1/18
Filed: 1923-11-13
Abstract: 221,116. Wade, H., (Mills Novelty Co.). Nov. 13, 1923. Stringed instruments.-In an automatic violin or the like sounded by rotary discs on shafts 8 driven by a. worm 10 from a motor 18, a clutch 15, 14 is interposed between the worm and the motor, and additional gearing 28, 27, operated by a ratchet 25 and pawl connected to the core of an electromagnet 19 energized by a key or from the tune-sheet, is provided whereby an accelerated movement may be given to the bowing-discs. A mechanical or pneumatic device may be substituted for the electromagnet 19. 'Specification 28093/06 is referred to.
Patent GB-946812-A (GB)
Title: A disinfecting or deodorising device for flushing cisterns
Inventor: THORNTON RALPH
IPC: E03D9/03
Filed: 1961-08-09
Abstract: 946,812. Disinfecting-apparatus for waterwaste preventers. THORNTON & ROSS Ltd. Nov. 9, 1962 [Aug. 6, 1961], No. 28718/61. Heading E1C. A disinfecting device for use in a flushing cistern 1 has a discharging member 4 which is buoyant in water, adapted to receive a charge of liquid disinfectant from a reservoir 3, and tilts to a position where the said charge will flow out of it, when the water level in the cistern 1 falls below the minimum level required to support the member 4, because a cord 15 is of such a length that it is then pulled tight. The reservoir 3 is flexible, has an outlet into the member 4 and weighting means 6 to hold itself below water level, so that a disinfectant of lower specific gravity than water will tend to flow upward out of it when in its working position to partly fill the discharging member 4, formed of a cup 8 with a feed tube 10 and having a float 13. To the lower end of tube 10 is attached the reservoir 3, e.g. of synthetic plastics sheet. A cord 15 connects the member 4 to the cistern wall.
Patent GB-792343-A (GB)
Title: Improvements in or relating to multi-stage aerofoil-bladed compressors
Inventor: FORSHAW JAMES ROBERT
IPC: F04D27/02
Filed: 1954-10-06
Abstract: 792,343. Axial-flow compressors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Sept. 30,1955 [Oct. 6, 1954], No. 28756/54. Class 110 (1). In a multi-stage axial-flow compressor, inlet means in a wall structure bounding the flow path is arranged to inject fluid into the flow path with a component of motion directed upstream against the flow, the inlet means extending circumferentially of the wall structure at a region upstream of a row of blades. In the compressor shown in Fig. 2, air is bled from the working passage through circumferentiallyspaced holes 14 upstream of the penultimate row of stator blades 10, and passes through holes 17 and pipes 22 to a manifold 23. The air is returned to the working passage at a point approximately midway between the inlet and outlet planes of the second-stage rotor blades 5 through circumferentially spaced holes 24. The holes 24 are inclined, as shown, so that the bleed air cloaks the blades 5 from the working fluid over a significant portion of the length of the blades extending radially inward from the leading edge of the blade tips. The resultant reduction in the effective length of the blades 5, and hence of the flow area, increases the axial component of velocity of the working fluid and thereby reduces the tendency towards stalling. In addition, the quantity of working fluid between the rotor blades 5 and 9 is augmented by the bleed air, again tending to increase the axial velocity component. A fluid pump driven from or with the compressor shaft delivers fluid at a pressure rising with the compressor speed to a cylinder 32 to move a piston 31 against the action of a spring 33. The piston 31 is connected by a connecting-rod 30 and crank 28 to a worm 26 meshing with a toothed sector on a valve ring 19. When the compressor reaches a speed corresponding to 60-70 per cent of the design load of the compressor, the valve ring 19 reaches a position at which holes 20 cease to overlap the holes 17, thereby cutting off the bleed. The bleed air may be introduced at more than one compressor stage, and may be used to match the stages by variably influencing the flow in one or more stages at different loads. Fig. 5 shows an embodiment in which the air bled through the holes 14 passes through holes 46 in intervening diaphragms to a circumferential slit 43 adjacent the tips of the rotor blades 5. The bleed is controlled by a valve in the form of a rubber tube 47 which is gradually inflated, as the compressor load increases, by air supplied through a pipe 49 and a hole 51 adjacent the last row of rotor blades 13.