baber/WOPTO huggingface dataset:
Patent GB-840294-A (GB)
Title: Method of and apparatus for testing a container for gas-tightness
Inventor: MEYER CORNELIS ADRIANUS
IPC: G01M3/32
Filed: 1958-08-07
Abstract: 840,294. Detecting leaks in vessels. METAL CONTAINERS Ltd. Aug. 7, 1958, No. 25349/58. Class 106 (2). A method of testing a container 11 for leaks comprises enclosing it in a chamber 13 having a flexible wall 14 which can be brought into engagement with substantially the entire surface of the container 11, and setting up a higher pressure in the container 11 than in the chamber 13. The chamber 13 is formed by a rubber jacket 14 and a rubber top wall 15 both supported in a rigid shell 16, 17. The assembly 13, 14, 16, 17 can be raised clear of the container 11 for removal thereof, and when in the position shown in Fig. 1, the chamber 13 is sealed by the lower ends of the jacket 14 being held against the base 12 by the shell 17. The wall 14, 15, remains clear of the container around its upper rim 19 due to the shape of the rim, and the jacket is reinforced by a curved stiffening member 22 to prevent it coming into contact with the seam 21 of the container. In use, the chamber 13 is evacuated and air at atmospheric pressure is allowed into the space between the shell 16, 17 and the flexible wall 14, 15, thus pressing the wall against the container 11 apart from the points mentioned above. After a suitable time, it is detected whether gas is leaking from the container 11, e.g. by measuring the pressure in the chamber 13 or by detecting the presence of a "tracer" gas with which the container is initially supplied. Air at atmospheric pressure is then allowed into the chamber 13 and the space outside exhausted, thus removing the flexible wall from the surface of the container. A means of sealing vent holes, bung holes or other openings is also described (Fig. 4, not shown).
Patent GB-1262586-A (GB)
Title: Strip feed guide
Inventor: CRANDALL ROBERT PHILLIP
IPC: G03B1/42
Filed: 1969-05-20
Abstract: 1,262,586. Strip-edge guides. EASTMAN KODAK CO. May 20, 1969 [May 20, 1968], No.25674/69. Heading G2E. One of a pair of opposed strip-edge guides having V-shaped grooves is resiliently biased towards the other to accommodate varying strip widths, is also pivotally mounted and may be adjusted perpendicular to the strip e.g. to ensure accurate focusing in a film gate. As shown, in a microfilm reader, film strip 12 is fed into guide 10 comprising upper and lower parts 20, 22 along path 18 to an entrance ramp 24 and thence between fixed guide-plate 25, having a groove 26, and an adjustable upper guide 28 also having a groove. Guide 28 is flexibly biased towards guide 25 by a spring coupling (springs 48 and 50) to upper part 20 from which it is also pivotally suspended by a U-shaped hanger 40 through end pieces 44, 45, pin 39 and spring washer 42. The position of hanger 40 with respect to an optical system (not shown) is adjustable by means of bolts 72, 74 mounted on fixed part 20 and coupled through clips 60, 62 to the arms 41 of hanger 40. Pivotal movement of guide 28 about the arms 41 results in a relatively small horizontal displacement (A) Fig.4 (not shown) of the strip relative to the lens system. A cooling system is described in which air is directed through ports 84, 85 on both sides of strip 12 and a transparent plate 86 is disposed in front of strip 12 to confine the flow from port 84.
Patent GB-1352786-A (GB)
Title: Wind direction recording system
IPC: G01P13/02
Filed: 1971-04-19
Abstract: 1352786 Average wind direction determination WESTINGHOUSE ELECTRIC CORP 19 April 1971 [27 May 1970] 25717/71 Heading G4H [Also in Division G1] A device for determining average wind direction includes a rotatable wind vane, a means for producing signals indicating when the vane is in, respectively, first and second sectors, a means for producing a signal indicating the wind direction, and a means for recording the signals. As described the wind vane 1 is connected to a slide potentiometer 23 and a rotary wiper 21 having two fixed contacts 15,. and 17. An A.C. source is connected to the rotary wiper 21 and oscillators 27, and 29 generate fixed frequency pulse trains which are. recorded on respectivetracks of a magnetic tape when they are energized by an output from their respective fixed contacts 15, 17 of the wiper. The output of theslide potentiometer 11 consists of a D.C. voltage and an oscillator 31 generates a pulse train whose frequency depends on the D.C. voltage level which is recorded on a further track of the magnetic tape. The pulse generators 27, 29 are cam-actuated switches driven by synchronous motors energized by the A.C. supply passed to the corresponding output 5 or 7. The magnetic tape recorder circuits are described in some detail, Fig. 2 (not shown), and are as described in wiring diagram 42-565 published by Westing- house Electric corporation, June 1967. The pulse generator 31 comprises a sawtooth wave generator biased by the output of the potentiometer and a comparator for comparing the sawtooth wave with a reference voltage, the output of the comparator being used to switch a relay which is connected to a pair of complementary switches. The average wind direction AWD over a given interval may be calculated, e.g. in a computer, by means of the following equation:- where A = number of pulses in the 0-120 degrees sector for the interval; B = number of pulses in the 240-360 degrees sector for the interval; C = number of pulses in the channel supplied by the slide potentiometer for the interval; -and K = maximum number of pulses C for the interval.
Patent GB-791897-A (GB)
Title: Improvements in push rods for the valve actuator mechanism for internal combustion engines
IPC: F01L1/14
Filed: 1956-08-23
Abstract: 791,897. Valvegear; lubricating. GENERAL MOTORS CORPORATION Aug. 23, 1956 [Sept. 15, 1955], No. 25766/56. Classes 7(2) and 7(6) A tubular push rod 24 having integral thrust bearings at each end has its wall thickened at each end 43, the external diameter at the ends being no greater than, and preferably less than the diameter intermediate the ends. The ends of the rod are provided with part-spherical bearing surfaces 41 engaging similar recesses in the valve rocker 19, Fig. 1, and tappet 26, Fig. 2, lubricating oil being fed from the tappet through orifice 29 into the push rod and thence to the rocker 19 and its bearing 23. Lubricating oil may also be fed through a passage 32 to a hollow bolt 21 and the rocker bearing 23 mounted thereon. The valve spring 17 is surrounded by a damping sleeve 18.
Patent GB-240313-A (GB)
Title: Improvements in or relating to steam boiler plant
IPC: F23M5/08
Filed: 1924-10-30
Abstract: 240,313. Cantieny, G. Oct. 30, 1924. Pulverulent-fuel furnaces.-A fire-tube, fluetube or other large water space boiler is heated by an external pulverulent-fuel furnace arranged in front of or below the boiler and surrounded by a large number of vertical water tubes connected with the boiler water space. The vertical water tubes g arranged along the walls of a furnace chamber c at the front of a flue-tube boiler are secured to upper and lower headers h, the upper headers rising towards and opening into the front of the boiler water space. The bottom parts of the tubes are inclined and cross one another to form a screen cooling the bottom of the furnace chamber. The lower headers are in communication with the rear of the boiler through pipes m. The tubes lie in grooves in bricks q held by a continuous joint against the furnace setting. Water may circulate from the tubes through a heat-exchanger in the boiler in a closed circuit.
Patent GB-233982-A (GB)
Title: Improvements in railway rail joints
IPC: E01B11/24
Filed: 1924-10-31
Abstract: 233,982. Morgan, A. J. Oct. 31, 1924. Rail joints, scarf.-Rail ends are cut on a splice five feet long, and flush on the inside. The ends are joined by four bolts without fishplates, and the joints rest on three chairs. Reference has been directed by the Comptroller to Specification 22444/98.
Patent GB-645567-A (GB)
Title: Improvements in or relating to hose pipes
IPC: B29D23/00
Filed: 1948-10-05
Abstract: 645,567. Flexible tubes. AUTOMOTIVE PRODUCTS, CO., Ltd., and GOSLING, C. A. Oct. 5, 1948, No. 25985. [Class 99(ii)] In a flexible hose com prising a lining 10 of rub ber, impregnated fabric &c. which may be rein forced by one or more lay ers 12 of textile fabric or of textile threads braidec together or helically wound about the lining, a helical winding 11 of nylon filament of circular, square or other cross-section is completely embedded within the lining 10. An outer covering 13 of synthetic rubber may be applied, and the warp and weft threads of the fabric 12 may be inclined to the axis of the hose. In modifications, a second fabric layer and an outer rubber covering are applied, Fig. 2 (not shown), and that covering has corrugations made by winding a string helix on to the hose before curing, and subsequently removing the string.
Patent GB-146765-A (GB)
Title: Improvements in and relating to locks
IPC: E05B65/00
Filed: 1919-10-23
Abstract: 146,765. Cochrane, R. Oct. 23, 1919. Sliding bolts; locks, pin-key.-In a looking - device especially applicable to securing a controlwheel or lever to the casing of a rotary shaft, the bolt 2a is formed in one with the bevelled plate of a lock case 2, which slides in an undercut groove in a fixed plate 5, and is retained in the locked position by the engagement of a spring bolt 21, Fig. 4, with a recess in the slide. Release is effected by a piece 7, operated by a pin key which moves a slider 8 engaging a projection 14 on the bolt 21. The whole lock case can then be moved by hand, sliding along the back plate to disengage the part 2a.
Patent GB-1298681-A (GB)
Title: Linear dimension measuring apparatus
Inventor: VAUGHAN GEORGE ALFRED
IPC: G01B7/02
Filed: 1969-05-22
Abstract: 1298681 Measuring external dimensions DAVY-UNITED ENG CO Ltd 18 March 1970 [22 May 1969] 26076/69 Heading G1M An apparatus for measuring an external dimension of an article 12 comprises a horizontal surface 13 for supporting the article, a member 17 positioned above the supporting surface, a pair of probes 20, 21 carried by the member and movable independantly of each other relative to the member along a horizontal path or pair of horizontal parallel paths, separate means 52 for driving each probe means 60 for stopping the drive means when the probe associated therewith abuts an article on the surface, means for determining the position of each probe relative to a datum position and means for computing the separation of the probes. As described, framework 14 of H or I girders comprises uprights 15 and cross-member 16. Horizontal box section beam 17 slides in opposite channels 25 of the uprights, being moved vertically by double acting piston and cylinder unit 30 through chains 36, 37 over sprockets 38. At the middle of the beam, probe 18, for determining vertical dimensions, operates limit switch 42 when the beam, in descending, brings probe 18 into contact with the top surface of an article being measured. Limit switch 42 then stops the supply of fluid to cylinder 30 and thus stops movement of beam 17. Selsyn transmitter unit 40 operated by sprockets 38 transmits to an electrical recorder the vertical movement of the beam 17 which thus gives the height of the article. Probes 20, 21 are mounted on brackets 50 running in slides 51, moved by double acting pistons cylinder units 52. Probes 20, 21 operate limit switches 60 to stop travel of the respective brackets 50 when they contact the article being measured, and again Selsyn transmitter units, operated by pinions 55 running in racks 54, determine the movement of each probe and hence give the width of the article. Further limit switches 43, 61, 61 stop the beam 17 and both probe brackets 50 at the limit of their backward travel.
Patent GB-944746-A (GB)
Title: Improvements in and relating to photographic reflex-copying
IPC: G03C5/10
Filed: 1962-07-06
Abstract: 944,746. Photographic copying of books. SOC. LUMIERE. July 6,1962 [July 6, 1961], No. 26108/62. Headings G2A and G2J. In a method of reflex-copying a page of a bound volume, the illumination of the photographic material placed on the page to be copied is effected by a beam of light substantially parallel to the said page, and reflected on to the page from a surface which is parallel or inclined to it. In the arrangement of Fig. 2, the book is opened at a small angle, about 10 degrees-20 degrees. The photographic paper 2 is placed face down on the top page of the lowermost stack 1a which is to be copied. A transparent sheet may be placed over sheet 2. The opposite page 7 is illuminated by a parallel beam of light 8, and may itself act as a diffusing or reflecting surface directing the light downwards through sheet 2 to effect the exposure. Alternatively, a transparent plate may be applied against the page 7, so that in effect an air-filled wedge is formed. This may be replaced by a solid wedge or prism of transparent material (Fig.7), whose front surface 13a may be curved to form a cylindrical lens for rendering parallel a diverging beam of light 15. A variant of the wedge of Fig. 7 is shown in Fig. 10, being formed of several layers, preferably of increasing thickness starting from the base 18a. In this form, light entering the face 18b of the wedge is totally reflected internally along each layer, until it impinges on the inclined face 18c, which is ground, so that the light is generally directed downwards through the base 18a of the prism, which is in contact with the film sheet lying on the book page to be copied. In Fig. 11 the wedge is formed as an inflatable bag of thin synthetic material, inflated through a valve 22, and may have a cylindrical lens 23 glued thereto. In Fig. 1 a parallel-sided plate 3 is used, of such thickness that total internal reflection occurs when a beam of light falls on its edge. The upper surface of the plate is polished, and the lower surface ground, the extent of the grinding being graded according to the distance from the light entry edge so that uniform illumination of the photographic sheet is obtained. To compensate for unevenness in the page to be copied, a sheet of pliable material, or a pneumatic layer, may be interposed between the page and the photographic sheet. French Specification 1,048,025 is referred to.
Patent GB-1335799-A (GB)
Title: Mouting of rings onto shafts
IPC: F16D1/06
Filed: 1972-06-05
Abstract: 1335799 Making fasteners ZAHNRADFABRIK FRIEDRICHSHAFEN AG 5 June 1972 [5 June 1971] 26157/72 Heading B3A [Also in Division F2] A sleeve 6 having bendable tongues 7, 8 for retaining a divided ring 4 in a groove 3 on a shaft 2 is formed from sheet metal by deep drawing. The ring 4 is bevelled or recessed 9 to receive the tongues.
Patent GB-812445-A (GB)
Title: Apparatus for degasifying liquid metal
IPC: C21C7/10
Filed: 1956-08-27
Abstract: 812,445. Degassing metals. DORTMUNDHORDER HUTTENUNION, A. G. Aug. 27, 1956 [Sept. 5, 1955], No. 26172/56. Class 72 An apparatus for degassing liquid metal comprises a heatable vacuum vessel having inlet and outlet pipes of barometric height and in the form of U- shaped siphons. As shown, a vessel K is divided into three chambers 6, 7 and 8. each connected to a vacuum pump and arranged that the pressure decreases from 6 to 8, by partitions 10 which may be cooled. The inlet pipe to chamber 6 has one end formed as a funnel 1 and the other terminating above the bottom of chamber 6. The outlet O from chamber 8 may be provided with a siphon-like overflow A<SP>1</SP> provided with a connection 15 to a suction line. Both pipes E and A are provided with suction chambers 3 to remove any gases from chambers 5 formed in porous bricks 4. Metal poured into the funnel 1 enters chamber 6 where a deoxidant, e.g. carbon, may be added through a device 11, it then passes under the partition into chamber 7 where it may be heated by glow discharge from electrode 13, and finally under partition 10 to chamber 8 from which it flows out through pipe A. The bottoms of the chambers may slope towards the outlets and that of chamber 8 may also be provided with corrugations which produce thin layers of metal. The vacuum lines and pumps may be protected from heat by the devices 12 and by coolers. The inlet and outlet pipes may be heated by separate heaters.
Patent GB-331133-A (GB)
Title: Process and apparatus for inflating collapsible hollow bodies
IPC: B63B7/08
Filed: 1929-08-29
Abstract: 331,133. Mehrtens, P. W. O., and Winkler, G. Aug. 29, 1929. Pontoons and pontoon rafts.-The inflation of hollow bodies such as collapsable rafts and boats is effected by cartridges 9, containing compressed or liquefied gases or sources thereof such as combustible material ignited by a percussive pin 12 which convey fresh air under pressure into the object to be inflated by way of an injector. The gas passes through an equalizing chamber 8 to a nozzle 5 surrounded by a funnel-shaped casing 6 with apertures 7 through which air is drawn, and by a conical diffuser 4 through which the compressed mixture passes into the inflatable object.
Patent GB-503192-A (GB)
Title: Improvements in supports for observation mirrors of road vehicles
IPC: B60R1/08
Filed: 1937-09-29
Abstract: 503,192. Look - out reflectors for vehicles; brackets; ball joints. NEALE & SONS, Ltd., J., and NEALE, R. W. Sept. 29, 1937, No. 26312. [Class 103 (ii)] [Also in Groups XIV and XXV] In a support for a road-vehicle observationmirror in which the mirror is adjustably secured to one end of a supporting arm comprising a rod 14 slidable in a tube 15 against frictional resistance, the other end of which is connected to a bracket positioned in the vehicle interior above or below the windscreen, the frictional resistance is supplied by a contracting band clip or clips applied externally to the tube to grip the rod. As shown, a double-sided mirror 1 having bright and dull reflecting surfaces 2, 3, is secured in a clip 4 carried by the ball element 7 of a universal joint 8 carried by the rod 14. The tube 15 is pivoted to a bracket 17 and is provided with slots 18, 19 and with tongues 26, 27 forming keys engaging a keyway 28 in the rod. Spring band clips 22, 23 are provided on the tube which have segments 20, 21 and 24, 25 which project through the slots and engage the rod. One clip only may be used and there may be several opposed and longitudinally or transversely spaced gripping segments. The socket for the ball comprises a seating 10 on an annular housing 9, and a disc 12 slidable in the housing and maintained in position by a screw 11 and spring 13. During adjustment of the mirror the screw is 'slackened so that the disc is maintained in engagement with the ball by the spring pressure only, but after adjustment is screwed up to engage positively the disc with the ball.
Patent GB-462280-A (GB)
Title: Improvements in and relating to electric heating elements
IPC: H01B7/16
Filed: 1936-03-16
Abstract: 462,280. Electric resistance heating- elements. BACKER, C. B. March 16, 1936, No. 26314. Convention date, May 21, 1935. Divided out of 462,263. [Class 39 (iii)] In making electric heating-elements of the kind in which a resistance coil 9 is inserted in a metal tube 8 having a lining of magnesium metal which is treated with steam or water under high pressure to convert the magnesium into magnesium hydroxide, the hydroxide is first partially dehydrated and the cross-section of the tube 8 is then reduced to compact the material, the dehydration being then completed. The reduction of the tube 8 is effected by the pressure of dies 11 and 12 and may be carried out in a number of stages, some dehydration being effected between each stage. The central space in the coil 10 may be filled with powdered insulating material before the reduction of the tube is effected. Specifications 18,685/14, 144,767, 336,949, [all in Class 37], and 341,938, [Group XXXVI], are referred to.
Patent GB-1533177-A (GB)
Title: Gas turbine engine
IPC: F04D29/44
Filed: 1976-06-24
Abstract: 1533177 Gas turbine engines DEERE & CO 24 June 1976 [24 June 1975] 26323/76 Heading F1G The description is substantially the same as that in Specification 1533176 but the claims are concerned with aspects of the rotary regenerator in the gas turbine engine. An additional embodiment is also described in which the gases leaving centripetal turbine 604 flow through axial diffuser 638 before reversing to pass through a rotary regenerator 606 driven from its outer circumference. The regenerator pre-heats air flowing through duct 634 from centrifugal compressor 602 to the combustion assembly 640.
Patent GB-975349-A (GB)
Title: Process for manufacturing dials having graduated circles for surveying instruments and surveying instrument having a dial obtained by said process
IPC: G01D13/02
Filed: 1963-07-03
Abstract: 975,349. Marking dials of surveying instruments. FILOTECNICA SALMOIRAGHI S.p.A. July 3, 1963 [July 13, 1962], No. 26352/63. Headings G1J and G1X. In a process for manufacturing dials having graduated circles a, for surveying instruments. simultaneously with marking of each single mark b or zone of marks of the circle a and concentrically with that circle, there is marked at a constant and prefixed angular displacement e.g. 90 degrees a corresponding single small arc d of an index circle c, so that the corresponding arc d may be superimposed on the respective mark or marks b, Fig. 2, by a suitable viewing system when in use. Thus as the mark b corresponding to 0 degrees is marked in the circle a the corresponding arc d is marked at 90 degrees and is indexed with an asterisk. When the dial is in use it must be ensured that these two marks coincide in the field of view e of the microscope used, and thereafter angles to be measured as given by the marks b will be indicated by the corresponding arc d eliminating errors due to unavoidable eccentric mounting of the dial. The arcs d are preferably spaced from each other by a distance less than the height of the marks b.
Patent GB-409674-A (GB)
Title: Improvements in or relating to clutch-operating mechanism for motor vehicles
IPC: B60K23/02
Filed: 1932-10-31
Abstract: 409,674. Operating clutches. POLLAK, J. E., 20, Holborn, London.-(Borg & Beck Co. ; 6558, South Menard Avenue, Chicago, U.S.A.). Oct. 31, 1932, No. 26369/33. Divided on 409,664. Drawings to Specification. [Class 80 (ii).] The Specification describes apparatus identical with that described in Specification 409,664, but the claims relate to the restricted auxiliary connection between the engine intake manifold and the servomotor. This connection may be permanently open.