baber/WOPTO huggingface dataset:
Patent GB-869570-A (GB)
Title: Improvements relating to burners for oil firing
IPC: F23D11/46
Filed: 1958-01-15
Abstract: 869,570. Valves. CARTLIDGE, E., and VANES, H. Jan. 15, 1959 [Jan. 15, 1958], No. 1382/58. Class 135. [Also in Group XI] A burner for oil firing incorporates a turnable valve 11 controlling the main air supply, and turnable valve 16 for controlling the fuel supply mounted for rotation about the same axis as the main air supply valve, an auxiliary valve 20 in operative association with the fuel supply valve the angular setting of which relatively to the setting of the fuel supply valve can be adjusted to suit starting conditions and to provide an infinity of settings between minimum and maxirunning conditions, a common means, lever 13, for actuating the main air supply valve, and the fuel supply valve so that these valves move in unison and separate means, a lever 28, for actuating the auxiliary valve. A spindle 12 mounts the butterfly valve 11, in an air inlet tube 10, and a frusto-conical fuel valve 16, the spindle being rotated by the lever 13. An inlet 17 leading to passage 171 in the valve housing supplies fuel to a groove 161 in the fuel valve 16, the groove being of increasing depth and communicates with one of two passages 201 in the choke valve 20 communicating with an oil chamber 22 and outlet 30, connected by a hatch to the burner housing, and annular spacer 108 leading to a jet tube 34. The lever 28, mounted on a member 24 bolted to the valve 20 and sliding in a frusto-conical recess in a plug 25 screwed in the valve housing, regulates the valve, the lever being spaced from the valve by a spring 26 to provide the oil chamber 22. The butterfly valve has a lost motion by moving in recesses in the wall of the inlet tube which cuts off the air supply during initial firing of the burner. The valve is initially rotated by the lever 28 to bring one passage 201 in communication with the groove 161 and port 311 to supply steam or compressed air to scavenge the fuel passages. The lever 13 is then moved to " min." position to supply fuel and atomizing air, through pipe 41 and ports 371, to the burner. After firing, the lever 28 is moved to " run " position and the lever 13 to " max." position to bring the passage 201 to the part of the groove 161 of greatest depth to increase the fuel supply. At the end of firing moving the lever 13 to " off " position disconnects the fuel supply valve from the oil chamber and connects the other passage 201 with the air or steam supply for scavenging the fuel passages.
Patent GB-1525521-A (GB)
Title: Package having resealable wrapping tape
IPC: B65D75/38
Filed: 1976-01-14
Abstract: 1525521 Resealable packages SVENSKA KNACKE AB 14 Jan 1976 [15 Jan 1975] 01433/76 Heading B8C A resealable parallelepiped package comprises an inner tubular package 3 having a longitudinal seal and transverse seals at each end thereof, (shown with the top seal opened at 6), and an outer wrapping in the form of a tape 1 encircling the inner package and covering the longitudinal and transverse seals; the tape 1 being fixed to the inner package at 5, e.g. by glueing or by impressing, being provided with a transverse tear guide, e.g. a tear strip (2) (shown torn open), and being provided on what becomes the free end of the tape after tearing of the tear guide (2) with releasable closure means 4, e.g. provided by sticky tape, whereby the free end of the tape may be releasably attached to the inner package to effect resealing thereof.
Patent GB-433701-A (GB)
Title: Device for determining density differences of photographic negatives
IPC: G01J1/42
Filed: 1934-01-15
Abstract: 433,701. Exposure meters. WEISSE, E., 1, Ludwig-Hupfeldstrasse, Leipsic, Germany. Jan. 15, 1934, No. 1459. Convention date, Jan. 13, 1933. [Class 98 (i)] The apparatus comprises a disc 2 adapted to be rotated over a disc 9 by a knob 14 the edge of the disc 9 being bent over the edge of the disc 2 to form a guide flange. The device is placed on the projected image of the negative at the printing level so that a gap 13 in the flange lies on the lightest part of the picture. By turning the disc 2, one of several screens of graduated density 3, 4, 5 and 6 is brought to the aperture which makes the combined density viewed by translucent or reflected light equivalent to the darkest part of the negative. The correct kind of paper to be used then appears in the aperture 10. The average intensity of the light on the printing level is now determined by comparing exposure measuring fields 7, 71. If, for example the necessary light value lies at 7<1>, the correct exposure in seconds is read off at 81, such being computed with reference to the sensitivity of the kind of paper. Specification 416,026 is referred to.
Patent GB-1333903-A (GB)
Title: Pressure transducer
IPC: A61B5/0215
Filed: 1972-01-12
Abstract: 1333903 Measuring fluid pressure electrically MILLAR INSTRUMENTS Inc 12 Jan 1972 [11 Feb 1971] 1466/72 Heading G1N [Also in Division A5] An electro-mechanical transducer for measuring pressure in fluids, particularly intra-arterial blood, relative to a reference pressure, comprises a housing 15 in which is an opening; a flexible, elongated, strain-responsive member 22 mounted within the opening and free to bend in response to applied fluid pressure; an elastic material 26 sealing the flexible member 22 to the housing 15, and a pair of conductors 46, 48 in electrical connection with the member 22; whereby the pressure to be measured, and the reference pressure, may be applied to opposite sides of the flexible member 22. Deformation of the member 22 is preferably measured by a strain gauge 34 affixed thereto. Alternatively the member 22 may be Piezo-electric. The flexible member 22 is rigidly affixed at one end to the housing 15, e.g. by an epoxy cement 60, and has a transverse notch 33. The strain gauge 34 is formed from two blocks (34a), (34b), Fig. 2 (not shown), secured on either side of the notch 33 and connected by a neck (34c). The electrical impedance (34') of the strain gauge 34 is measured by a Wheatstone bridge circuit, Fig. 7 (not shown), connected to the wires 46, 48. To compensate changes in resistance (34') arising from temperature changes, a second strain gauge 36 is provided and included in the bridge circuit. The flexible member 22 may be of ceramic material such as alumina, with electrically-conductive coatings (42), (44), Fig. 2 (not shown), on its upper and lower surfaces. The elastic material 26 may be silicone rubber. As shown, the housing is a tubular probe 15 from which a section has been removed. The reference pressure is the ambient atmospheric pressure, which is communicated to the interior of the probe 15 by a flexible cable 18. The probe may be inserted in an artery. Alternatively, the probe may be sealed in a chamber (84), Fig. 10 (not shown), communicating with the source of fluid pressure via tubing (86). In an alternative embodiment for measuring pressure differentials, Figs. 8 and 9 (not shown), the flexible member is mounted in a slot in a partition (114) separating two halves (100a), (100b) of a housing (100). In a further alternative embodiment, Figs. 11 and 12 (not shown), the flexible member is mounted in a slot in a conduit (90) through which the fluid flows.
Patent GB-136345-A (GB)
Title: Casement Window Door & Fanlight Stay or Fastener.
Inventor: AUDRIC JOHN EDWARD MAURICE
IPC: E05C17/26
Filed: 1919-01-21
Abstract: 136,345. Audric, J. E. M. Jan. 21, 1919. Pivot adjustments.-A casement or like stay comprising an arm g engaging by means of a stud i at one end with a slotted plate j on the window &c. n is pivoted at the other end on a bolt d secured to the sill or floor p by a plate a. The opposed surfaces b of the plate a and the arm g are serrated, and the arm is clamped in the desired angular relation by means of a nut e on the bolt d, against the action of an interposed spring f.
Patent GB-606616-A (GB)
Title: Improvements in and connected with scissors
IPC: B26B13/22
Filed: 1946-01-16
Abstract: 606,616. Making scissors; file cutting. EDWARDS, I. R. C. Jan. 16, 1946, No. 1565. [Classes 83 (ii) and 83 (iv)] [Also in Group XIV] A scissors blade with a file surface on its inner face, as described in U.S.A. Specification 2,361,387 and Canadian Specification 427,466, is made by forming the blank B with projections 3 by means of which it is held while the file surface 2 is cut, these projections being subsequently removed by filing or machining. The blank is preferably clamped against an anvil A. Guide lines 4, 5, Fig. 2, to indicate the limits of the file surface, may first be cut by a chisel and then this is used to cut the file markings.
Patent GB-1118044-A (GB)
Title: Improvements in flexible ducting
Inventor: SEAR DEREK WILLIAM
IPC: F16L31/00
Filed: 1965-01-14
Abstract: 1,118,044. Flexible ducting; joints for ducting. DUNLOP CO. Ltd. 7 Jan., 1966 [14 Jan., 1965], No. 1606/65. Headings F2G and F2P. Flexible ducting 1, e.g. of rayon fabric coated with polyvinyl chloride and having a longitudinal seam incorporating a rib 3, has at least at one end thereof a hoop 5 within a pocket of the ducting material and a flexible skirt 7 ending in a hoop 9. The hoop 5 is deformed and after insertion through the hoop 6 of ducting 2 is allowed to recover the normal circular shape thereof, after which the skirt is unfolded and disposed over the joint. In a modification the skirt is disposed within the ducting. The hoops each comprise a continuous length of wire formed into a hoop, the turns of the wire being bound at intervals with strips of adhesive tape.
Patent GB-581164-A (GB)
Title: Improvements in or relating to electrical bridge arrangements
IPC: G01R17/00
Filed: 1940-01-10
Abstract: 581,164. Inductance and capacitance measurements. BLUMLEIN, A. D. Jan. 10, 1940, No. 1629/41. Divided out of 581,161. [Class 37] The ratio arms of an A.C. bridge comprise two tightly coupled inductances and are supplied with voltages of the same frequency but different amplitudes so that when the bridge is balanced the unknown impedance is a calculable fraction or multiple of the known impedance. The closely coupled inductance 20, 21 forming the ratio arms are wound in bifilar fashion on a high permeability core and are provided with a number of tapping points to give a choice of ratios. The common point 22 of these inductances is connected to the end 23 of an inductance 24 which provides the measuring voltage to the two arms of the bridge and has tappings for adjusting the ratio of the voltages applied to the two arms of the bridge. Leads 25, 26 connected to the impedance to be measured are connected to tappings on the inductances 20, 24. The balancing condenser 27 and the zero-adjusting condenser 28 are both connected to the same tapping on the inductance 24 and are also connected to tappings on the inductances 21, 20. A potentiometer 29 and resistance 30 provide a resistance balance. The measuring voltage is provided by an oscillator 31 having a valve output stage with negative feed-back to give a low impedance output, so that the sensitivity of the bridge is independent of the valve of the impedance being measured. The oscillator has a frequency of about 1,600 cycles per second and is coupled to the inductance 24 by a step-down transformer 32, balanced low impedance-line 33 and step-up transformer 34. Telephones 35 are coupled to the inductances 20, 21 by transformers 36, 38 connected by a balanced low impedance line 37. An amplifier 39 may be included between the transformer 36 and telephones 35 and may have negative feedback. The bridge is enclosed in a screening box 40 enclosed within an earthed screening box 45. Screens 41, 42 surround the leads 25, 26 and are connected to the screening box 40 as also are screens 43, 44 between the windings of the transformers 34, 38. These transformers are also provided with second screens 47, 46 connected to the outer screening box 45. Additional screens 48, 49 may also be provided for the leads 25, 26.
Patent GB-700432-A (GB)
Title: Improvements in or relating to high pressure fluid containers
IPC: F17C1/06
Filed: 1952-01-21
Abstract: 700,432. Storing gases under pressure. SPECIALTIES DEVELOPMENT CORPORATION. Jan. 21, 1952 [Jan. 24, 1951], No. 1667/52. Class8(2). The cylindrical portion 12, Fig. 1, of a high pressure fluid container 10 has a removable protective assembly engageably surrounding it comprising a cylindrical sheath 20 wound with piano wire or nylon yarn 21 so as to minimize and localize the area of rupture of the container 10 and prevent ripping of the same when pierced by a projectile. The sheath 20 which may be split longitudinally may be of plastic or metal. A readily oxidizable metal is preferred to form a protective coating and thus confine burning of the container to the vicinity of the point of entry of the projectile. Apertured flanges 25, Fig. 3, secure the ends of the winding 21 and a coating 29 of solder protects it from corrosion. Nylon yarn winding is protected by a flexible sleeve of rubber or metal held at the ends by the turned over edges of the flanges 25. In both constructions the wound sheath is pressed on to the container body and is frictionally maintained by a gasket 25 in a recess 24. Specification 556,801 is referred to.
Patent GB-568409-A (GB)
Title: Improvements in and relating to electro-magnetic clutches or brakes
IPC: F16D27/06
Filed: 1944-03-01
Abstract: 568,409. Friction clutches and brakes. SELF-CHANGING GEAR CO., Ltd., WILSON, A. G., and MILLER. A. A. March 1, 1944, No. 1669/43. [Class 80 (ii)] [Also in Groups II and XXXIV] In an electromagnetic clutch or brake in which an electromagnet attracts its armature, the 'frictional grip between these two parts providing a driving or braking torque, the whole or part of the magnet c or armature d is of cast iron, having a graphitic carbon content of at least 1.75 per cent and a combined carbon content of not more than 0.83 per cent. The material may be sprayed on to the rubbing surfaces. Alloying agents such as nickel may be' combined with the iron. Thus, wear on the rubbing surfaces is reduced. Wear-resisting inserts of non-magnetic material, such as phosphor bronze or non-magnetic iron, may be inlaid flush in the rubbing surfaces. Such inserts may be rings h, h<2>. Alternatively, the rings h<2> may be replaced by plugs. To assist the separation of the surfaces, a resilient ring, e.g. of corrugated form, may be mounted between the armature and pole faces. Specification 521,351, [Group XXXIV]. is referred to.
Patent GB-1136601-A (GB)
Title: Improvements in and relating to gramophone pickups
Inventor: FOOT GEORGE OWEN
IPC: H04R17/06
Filed: 1965-01-14
Abstract: 1,136,601. Gramophone pickups. COSMOCORD Ltd. 14 Jan., 1966 [14 Jan., 1965], No. 1677/65. Heading H4J. In a gramophone pick-up, a stylus carrier 15 having two styli 16, 17 for alternate use is carried in a holder 24 by being attached to a removable attachment member 27 through a compliant member 28, the attachment member 27 being adapted to be received and retained in a receptacle in the holder by a friction fit or by being sprung in. The pick-up includes a two-part casing (10, 11), Fig. 2 (not shown), inside which a piezo-electric twister element 12 is clamped by two pads 13, 14. The pad 14 has upper side portions 14a, lower side portions 14b and a projection 14c which extends through the casing (10, 11). The pad 14 imposes a restraint on the element 12 against torsional movement. The pad 13 has an upward projection (13b), Fig. 3 (not shown), upper side portions 13a, and a lower grooved portion (13d) to receive the stylus carrier 15. In use, when a stylus moves laterally a twisting strain is imposed on the element 12 through the pad 13. The holder 24 is of generally circular cross-section and has a turn-over lever (25), Fig. 2 (not shown). It is trapped between the two parts (10, 11) of the casing and is retained in either of two positions by a spring 26 engaging one of two flats 24a, 24b. The attachment member 27 is a tubular plug and the compliant member 28 is of foamed plastics damping material. The carrier 15 is held in the attachment member 27 by a cross pin 29. The rear end of the attachment member 27 has an integral extension 27a. At the front end an extension 27b is engageable by a small tool or finger nail whereby the attachment member 27 can be sprung out of the holder 24.
Patent GB-885932-A (GB)
Title: Gas blast circuit interrupters
IPC: H01H33/56
Filed: 1960-01-18
Abstract: 885,932. Gas-blast switches. WESTINGHOUSE ELECTRIC CORPORATION. Jan. 18, 1960 [Jan. 23, 1959], No. 1683/60. Class 38 (5). A gas-blast switch has a plurality of serially connected contacts 34, 35 and associated arc-extinguishing units 18, 20, 21, a high-pressure gas reservoir 22, a blast valve 46 and separate passages 42 ... 44 leading from the valve to each of the arc-extinguishing units. This assembly is supported by lead-in bushings 12, 13 in a tank 5 filled with gas at a low pressure, e.g. sulphur hexafluoride or selenium hexafluoride at 30 lbs./sq. inch. Each fixed contact 34 comprises an arcing contact rod 40 surrounded by resilient spring contact fingers 41 and a split tubular extension with contact fingers 34b which make permanent sliding contact with the moving contact 35 of the next unit. Each moving contact 35 engages within the fingers 41 of the co-operating fixed contact and is bored at 35a to receive the arcing contact rod 40, gas exit passages 35b being provided. The moving contacts are secured to cross-members 38 of a ladder-like operating member having guided side rods 37 connected by links 70, Fig. 5, to arms 63c (one shown) of a lever 63 which is connected by links 26, 25 to external operating mechanism. When the contacts are opened by operation of the linkage, a thrust member 65 on the lever 63 pushes a latch 66 to the right causing the clockwise rotation of a lever 83 on which the latch is pivoted. This causes a roller 86, carried by the lever 83, to open a pilot valve 58 to vent the region at the rear of a blast-valve operating- piston 51 to the tank so that the high pressure gas in the reservoir 22 acting on the piston 51 opens the blast valve 46. After a predetermined separation of the contacts, the latch 66 is brought into abutting engagement with a stop 107 and disengaged from the thrust member 65. A spring 78 now re-closes the pilot valve 58 to cause the reclosure of the blast valve 46. A further shorter latch 67, Fig. 7, may be provided to ensure operation of the blast valve should the switch be re-opened after an incomplete reclosure. The reservoir 22 is connected to an external high-pressure reservoir which is supplied by a compressor from the tank 5, Fig. 18 (not shown).
Patent GB-641686-A (GB)
Title: Improvements in or relating to method of making a nut blank
IPC: B21K1/64
Filed: 1948-01-21
Abstract: 641,686. Forging nuts ; dies. WATERBURY FARREL FOUNDRY & MACHINE CO. Jan. 21, 1948, No. 1827. Convention date, July 31, 1947. [Class 83 (iv)] A method of making a nut blank includes the steps of cutting a blank from solid stock, cupping one end of the blank to form a relatively thin peripheral edge and then applying pressure to the blank to form at the cupped face, an outwardly inclined area surrounding a central flat area. The machine for carrying out the invention is generally similar to that described in Specification 641,685, but with different shaped dies at stations 3 and 4. The blank 36 leaving station 2 is formed with a recess or cup leaving a relatively thin peripheral edge round the cupped area and is carried by known transfer means to station 3. Here it is pressed between a die 41 having a knock-out pin 43 and an insert 44 and a die or punch 47 with a pin 49. The pin 43 forms a shallow flat depression while the insert 44 forms the peripheral edge into a downwardly and outwardly sloping surface 57. At this station also the side wall of the blank is formed into flats 55 joined by rounded corners 56, as shown in Fig. 8. At the fourth station the blank is inserted in a die comprising parts 64 and 65 into which projects the shaped end of a knockout pin 66 and is pressed between these elements and a polygonal punch 71 with a projection 72 which partially pierces the blank. The blank leaves this station completed as in Fig. 9, except for punching the hole completely through, which is carried out at station 5 as described in Specification 641,685.
Patent GB-793130-A (GB)
Title: Improvements in or relating to hand coverings for sporting use
IPC: A41D19/015
Filed: 1956-01-19
Abstract: 793,130. Gloves &c. HOOD, G.. and COX, M. S. Jan. 17, 1957 fJan. 19, 1956]. No. 1829/56. Drawings to Specification. Class 141. Pieces of tape in which at least some of the warp threads are of rubber are secured to the palm of a complete glove or palm grip for sporting use.
Patent GB-999532-A (GB)
Title: Warp knitted fabrics
IPC: D06M23/00
Filed: 1961-08-04
Abstract: 999,532. Finishing fabrics. M. FARGAT. Aug. 4, 1961 [Aug. 4, 1960; Oct. 19, 1960; March 10, 1961], No. 28363/61. Heading D1S. A fabric is warp knitted on a warp knitting machine whose guide bars are each not shogged more than one wale to the right or to the left, and is then teazled, pressed and given a finishing treatment to give a nap which is such that the threads of the fabric can no longer be distinguished. The fabric may be knitted as shown diagrammatically of wool yarn. After knitting, the fabric is removed from the machine, cleaned, carbonised in sulphuric acid and milled, treated with a warm solution of sodium carbonate and sodium hydroxide to remove the acid, fulled using fulling soap in tepid water, treated with water containing sodium carbonate to remove the soap, dried under widthwise tension, teazled using worn teazles with several passes through the gigging machine, pressed by a rotary press with a steam heated bed, brushed using steam, cropped, and pressed.
Patent GB-816767-A (GB)
Title: The manufacture of spigot-and-socket concrete pipe joints
IPC: F16L25/00
Filed: 1958-01-20
Abstract: 816,767. Concrete pipes; pipe Joints. HUME PIPE CO. (SOUTH AFRICA) Ltd. Jan. 20, 1958 [July 1, 1957], No. 1900/58. Classes 99(1) and 99(2). In a spigot and socket joint for concrete pipes at least the outer surface of the spigot has a coating 16 of synthetic resin which may be continued around the end face of the pipe and into the pipe bore to form a lining 24. The internal surfaces of the socket may be lined with synthetic resin which may also extend around the end face and into the bore of the pipe. As shown, the pipes are prestressed by helically wound and tensioned wires 12, 40 which are covered by layers of cementitious material 14, 42; the wires are embedded in the coatings of synthetic resin. The joint is made by means of a toroidal rubber ring 46 disposed within the annular space 48; alternatively the joint is made by caulking. The polyesters or epoxy resin employed may be moulded, sprayed or otherwise applied to the pipes and resinforced by fibre glass. The pipe linings may be of fibre glass.
Patent GB-822372-A (GB)
Title: Improvements in or relating to casks
IPC: B65D45/32
Filed: 1957-12-13
Abstract: 822,372. Barrel heads. DYSON, E., HARRISON, H., and IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 13, 1957 [Jan. 18, 1957], No. 1903/57. Class 21. [Also in Group XVIII] The lid G of a cask B comprises a metal disc H, a rubber gasket I and a plywood liner J, and is held in place by a locking ring L securing the metal disc H to a beaded edge of a top hoop D secured to the cask.
Patent GB-1413952-A (GB)
Title: Exerciser for the hands, wirsts and or arms
IPC: A63B23/035
Filed: 1974-01-16
Abstract: 1413952 Hand, wrist and arm exercises J F G ROOKS 16 Jan 1974 [2 Feb 1973] 01952/74 Heading A6M An exerciser for the hands, wrists and arms comprises hollow hand grips 11, 12A of cylindrical or, as shown, frusto-conical shape, and a central connector 13, all held together by a headed bolt 22 with a nut 19 on its end, to allow adjustment of the friction grip between the parts which can be twisted relatively to each other. To provide larger diameter hand grips, tubes 32 have their tapered ends 34 telescoped into the ends of the hand grips 11.