baber/WOPTO huggingface dataset:
Patent GB-811807-A (GB)
Title: Improvements in or relating to electromagnetic wave guide transformers
IPC: H01P1/04
Filed: 1957-01-25
Abstract: 811,807. Waveguide impedance matching. WESTERN ELECTRIC CO. Inc. Jan. 25, 1957 [Jan. 26, 1956], No. 2784/57. Class 40 (8). A waveguide transformer for matching two guides 11, 12 of different dimensions and characteristic impedances K1, K2 comprises an intermediate quarter-wave section with a characteristic impedance KO lying between K1 and K2 whose narrow dimension is larger or smaller than the narrow dimension of the guide 11 to produce a capacitive shunt susceptance and whose wide dimension is smaller or larger than the wide dimension of the guide 11 to produce an inductive shunt susceptance equal in magnitude to the capacitive shunt susceptance. The impedance of the intermediate section is chosen according to the relation K0=#K1K2 and, using known equations, a range of ratios of a0/a1 and b0/b1 (see Fig. 1), which will give the desired value of KO is determined. A further equation of an empirical nature (given in the Specification) sets forth the relation between the above dimensional ratios necessary to produce a non-susceptive junction between guides 11 and 13. This equation is combined, using a graphical method, with the known equations connecting the dimensional ratios with the characteristic impedance ratios to give unique values for a0/a1 and b0/b1 whereby a transition section having the desired impedance and forming anon-susceptive junction with the guide 11 may be constructed. These proportions also determine the dimensions of the discontinuities between the transition section 13 and the guide 12. If these are not negligible they may be compensated by known methods or by a second quarter-wave section having the same characteristic impedance as the guide 12 inserted between the section 13 and the guide 12. It is shown in-the Specification that the dimensions of the second quarter-wave section may be chosen such that it forms non-susceptive junctions at either end. Alternatively, one or more quarter-wave sections designed in a similar manner to the section 13 to have an intermediate impedance may be inserted between the section 13 and the guide 12. The impedance steps between the successive soctions may follow a linear, exponential, binomial or other desired distribution. The transformer may be used to couple rectangular guides to circular or oval guides.
Patent GB-941256-A (GB)
Title: Improvements in or relating to regulating devices of free-piston internal combustion engines
IPC: F02B71/00
Filed: 1960-01-26
Abstract: 941,256. Free piston engines. REGIE NATIONALE DES USINES RENAULT. Jan. 26, 1960 [Feb. 2, 1959], No. 2814/60. Headings F1B and F1Q. An internal-combustion operated free piston engine is regulated by means of a control of the amount of air in the cushion spaces and the pressure in the cushion spaces is employed to control the fuel injection. The invention is described as applied to a free piston gas generator. Referring to the Figure the pressure is increased by moving the control slide valve 3 in the direction of the arrow 43. The ports 24 uncover the ports 25 and the chamber 18 and consequently the scavenging case C are allowed to communicate with the chamber 23. Thus by way of the non-return valve 26 the cushions M 1  M 2  which communicate with the space 27 are supplied with air. The consequent increase in pressure in the chamber 9 causes the slide 4 to move in the same direction as the slide 3. Due to this movement of the slide 4 the inflation ceases immediately and the supply of fuel is increased by the link 15 which controls the rack of the injection pump (not shown). The operating pressure may be reduced by displacing the slide valve 3 in the opposite direction. Thus the ports 29 uncover the ports 30 and the cushions are discharged into the chamber 19 and thus to the atmosphere through the port 22. The cushions M 1  and M 2  are vented to atmosphere preferably through a filter which may be connected to the orifice 22. During operation under moderate load conditions the recirculation is obtained as follows. The ports 33 of the slide 3 are so positioned in relation to the orifices 32 as to throttle the air from the scavenging case which is to flow through the chambers 18 and 31 to the inlet duct of the compressors. This can take place only if the ports 34 of the slide 4 register at least partially with the ports 33 and 32. The regulator may be adapted to a double engine having a single scavenging case by dividing each annular chamber (23 and 27) into two separate chambers each chamber 23 communicating with the corresponding chamber 27 through the medium of a non-return valve. It is stated that the throttle or accelerator control linkage in the case of a vehicle may be simplified considerably.
Patent GB-510249-A (GB)
Title: Improvements in means for guarding wrench actuatable faucets and like valves
IPC: F16K35/10
Filed: 1938-01-28
Abstract: 510,249. Valves.WHEATON, A. W. Jan. 28, 1938, No. 2832. [Class 135] A faucet or like valve adapted to be actuated by the application of a wrench to the end of an actuating spindle has the end of the spindle protected by a pivoted cover fitted with a catch for holding it in the open position and locking means for securing it in the closed position. In the form shown in the Figures the cover 24 is pivotably mounted on a pin 23 and is formed with a radial boss 31 housing a spring-loaded ball catch 33 adapted to co-operate with a recess 37 in the pin 23. Diametrically opposite the pin 23 the cover is provided with an arm 27 extending at right angles to the plane of the cover, which arm is adapted to engage a lug on the casing both arm and lug being provided with a hole to receive the hasp of a padlock. The cover between the boss 31 and arm 27 is flanged so as to cover the gland 13 through which the actuating spindle extends.
Patent GB-262709-A (GB)
Title: Improvements in or relating to brake controls for power propelled vehicles
IPC: F16D57/06
Filed: 1926-02-01
Abstract: 262,709. Staude, E. G. Dec. 11, 1925, Fluid-pressure; indicators, applications of.-A brake control for powerpropelled vehicles comprises a movable valve seat and movable valve one of which members is operable by a pedal or lever to co-operate with the other member, which is connected with the brakes, to obstruct the flow of fluid in the circulating system of a pump to cause the building up of fluid pressure directly against the seat and valve. A pressure proportionate to the built-up pressure reacts on the pedal. The circulating system comprises a gearpump 8 carried by the transmission case 2 and operated by the transmission shaft 12. Fluid is drawn into the pump from the case 2 and is forced through a channel in a closure plate 25 of the case 2 into a passage 30 in a manifold 29 connected to the valve chamber 33 from whence it passes through the passage 42 and returns to the case 2. A hollow cylindrical valve seat 35 mounted to slide in the valve chamber is carried by a rod 45 which is slotted at 46 to engage the end 47 of an arm 48 fixed to the bearing sleeve 50 of the pedal 49. The valve 39 is formed on a sleeve 61 which slides on the rod 45 and carries at its outer end a member 60 bearing against a fork 59 fixed to the bearing sleeve 51 of the brake actuating lever 52. The sleeves 51, 52 are mounted on the shaft 58 and the brake lever 52 is connected to the pedal 49 by a bolt 54 sliding in a bearing 55 on the pedal under the control of a spring 56. The valve seat 35 is formed with a flared flange 38 which is normally separated from the valve 39 to permit circulation of fluid, but when pressure is applied to the pedal 49, the seat 35 is moved into contact with the valve 39 to obstruct the flow and cause pressure to be built up in the valve chamber 33. This pressure acts on the valve 39 and moves it to apply the brakes. The relative areas of the flange 38 and opposite end 68 of the valve seat are such that a resultant pressure acts on the seat against the pressure exerted on the pedal 49. The pedal pressure required for a given amount of braking action depends on the pressure of the spring 56 and if failure occurs in the fluid-pressure system, the brakes are applied directly by the pedal 49 through its connections to the valve seat bv which mechanical pressure is applied to valve 39 and transmitted to the brake lever 52. The valve chamber is in communication with a fluid-pressure gauge the dial of which has a marked portion to indicate when the pressure during brake application becomes abnormal owing to the brakes requiring adjustment.
Patent GB-1096994-A (GB)
Title: Yarn package support
Inventor: BARRATT HAROLD
IPC: B65H75/24
Filed: 1964-01-23
Abstract: 1,096,994. Package support. COURTAULDS Ltd. Jan. 22, 1965 [Jan. 23, 1964], No. 2895/64. Heading B8M. A yarn package support, particularly for supporting a centrifugally spun cake 6 while being washed, comprises at least three flexible resilient flaps 2, each projecting from a tubular body 1 at an angle to an associated tangent to the body and running parallel to or at an angle of less than 10 degrees to the axis of the tubular body. The tubular body may have a circular, hexagonal or other cross-section and is flexible and perforated. The flaps and body portion may be moulded integrally from a plastics material or the flaps can be assembled on annular end pieces. For washing a number of packages the supports carrying the packages are mounted on a cylindrical sleeve between flanges; the packages may remain so mounted for a subsequent hot air drying process. A method of compressing the flaps for insertion in a package is described.
Patent GB-588214-A (GB)
Title: Improvements in tray-type evaporators
IPC: B01D1/06
Filed: 1945-02-05
Abstract: In an evaporator comprising several shallow trays 4 disposed vertically above each other in a shell 6 with vertical heating tubes 2 extending through all the trays, the joints between the tubes and the bottoms of the trays are made fluid-tight, and staggered overflow weirs 5 are provided for feeding the liquid from one tray to another. A cover 9 is bolted to the under surface of tube sheet 1 and this has a horizontal partition 10 which serves as tube sheet for a series of tubes 11 of smaller diameter than tubes 2, and extending therethrough; the tubes 11 serve to feed heating medium, introduced through port 12, to the tubes 2, which are closed at their upper ends by removable plugs 3.  The liquid to be evaporated is fed through line 8 and vapours are <PICT:0588214/III/1> withdrawn through outlet 7.  The evaporator is primarily intended for the production of pure water for boiler feed purposes.
Patent GB-1537152-A (GB)
Title: Fabrication of panel structures having thin skin plate in vehicles water craft buildings and the like
IPC: B61D17/04
Filed: 1976-01-27
Abstract: 1537152 Making panels; stretching KAWASAKI JUKOGYO KK 27 Jan 1976 [27 Jan 1975 (2)] 02985/76 Headings B3A and B3E A method of making a panel (for vehicle tops, sides, &c.) comprising a skin plate 1 over a framework 3, comprises tensile stressing plate 1 by stretching and local heating, welding it to framework 3 whilst so stressed, and then releasing plate 1 from the stretching and heating to leave a residual tensile stress. The skin plate 1 may comprise a number of sheets (1a), Fig. 1 (not shown) welded together before stretching. It may be stretched on the apparatus shown in Fig. 3, which comprises fixed holding means 8b and a moving tension-producing assembly consisting of an anchoring structure 15a and an hydraulic cylinder 11 pulling through piston 11a, chuck-plate 10a and chuck 9a the end of the plate 1. The ends of the plate are heated by heaters 14. In a second embodiment, Figs 8, 9 (not shown) the panel comprises individual plates (23) which are each heated by a heater (27) or hotplate pressed by a press (28) on to a heat-resisting layer (26) of, e.g. asbestos, on a table (25), then whilst expanded under heat, welded to the framework. The skin plate may be of, e.g. aluminium or stainless steel.
Patent GB-564067-A (GB)
Title: Improvements in or relating to road rims for the wheels of agricultural tractors or the like
IPC: B60B15/26
Filed: 1943-02-23
Abstract: 564,067. Vehicle wheels. BEST, H. Feb. 23, 1943, No. 2994. [Class 144 (i)] To enable agricultural tractors to be driven on roads the driving wheels are encircled by steel rings 1 supported on the wheel rims 8 by T-angles 6 having their bases shaped to project in opposite directions into recesses 10 in the spuds 9. The rings 1 may each consist of two sections hinged together at one end and bolted together at the other.
Patent GB-476355-A (GB)
Title: An improved screwdriver embodying a clamping device for holding the screw solidly whilst it is being driven
IPC: B25B23/10
Filed: 1937-02-03
Abstract: 476,355. Screwdrivers. CARRIER, G. L. Feb. 3, 1937, No. 3149. [Class 61 (iii)] A screw-holding screwdriver comprises a rod c, the end of which is adapted to engage the head or nick of the screw a and a thimble b provided with a pair of jaws to engage under the screw head, and having a screw threaded bore to engage a threaded part near the end of the' rod. In the modification, Fig. 6, the threaded part of the rod c engages a nut d slidably guided in a bore in the thimble b by a set screw e whereby after the screw has been started the point of the blade may be projected through the thimble jaws to complete the operation.
Patent GB-104038-A (GB)
Title: A New or Improved Travelling Kitchen.
Inventor: SCOFIELD HARRY CHARLES
IPC: F24B1/20
Filed: 1916-03-02
Abstract: 104,038. Scofield, H. C. March 2, 1916. Cooking-stoves.-A travelling kitchen consists of a wheeled stove comprising numerous compartments b each of which contains a removable boiler or cooker c, together with a water-heater o, a grill o<1>, ovens 1, fuel stores n, &c. The inlet to each oven flue or chamber b is controlled by a vertical sliding damper f, and the gases pass through it to the side flues d<1> leading to a chimney e. The fuel stores n are surrounded by air spaces n' which may be used for storing dishes and cutlery. Air spaces n<2> prevent the axles and wheels from becoming overheated. At the front is a platform with stores for condiments &c., a draught pole and hooks, and chopping-boards &c.
Patent GB-138621-A (GB)
Title: An improved rotary razor strop
IPC: B24D15/08
Filed: 1920-02-02
Abstract: 138,621. Cooke, W. J. March 19, 1918. [Convention date]. Stropping - apparatus.-A device for stropping razor blades on both sides simultaneously comprises a frame 8, in which is journaled a spindle 4 carrying a roller 1 having an abrading- surface 3 and provided at one end with an operating-handle. A spindle 5, carrying a roller 2 gearing by means of spur-wheels 6, 7 with the roller 1, is mounted, with its ends projecting into curved slots 12 in the frame, at the upper end of a frame 10 pivoted on a pin 11 and attached at its lower end to one end of a tension spring 13, the other end of which is attached to a screw 14 provided with a nut 15. The blade 16 is mounted in a holder, Fig. 5, comprising a bar 17 with a keeper 19 pivoted thereto at one end and adapted to be retained at the other end by a catch 21; pins 18 engage the notches in the blade. In operation, the roller 2. Fig. 3, is drawn back and the bladeholder is placed on leather bearing-surfaces 22 in the frame; the roller 2 is then released to press against the blade, and the operating-handle is rotated. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of a ratchet-wheel, on the spindle 4, engaged by a pawl to prevent rotation in the wrong direction. This. subject-matter does not appear in the Specification as accepted.
Patent GB-1455082-A (GB)
Title: Needle bonding process
IPC: D04H18/00
Filed: 1974-01-23
Abstract: 1455082 Laminating fabrics by needling STANDARD OIL CO 23 Jan 1974 [24 Jan 1973] 03208/74 Heading B5N [Also in Divisions D1-2] A layer of staple fibres is needled to a woven or nonwoven polyolefin fabric by needles having at least one blade edge per needle and at least one barb located on a blade edge, all the barbs of a given needle which penetrate the fabric being located on a blade edge of said needle and each of these barbed blade edges being orientated so as to form an angle of 35 to 55 degrees to the line of travel of the fabric through the needling machine. For comparison purposes triangular and correction needles having 1 and 3 barbs on each edge are used. They are less effective than needles of triangular. cross-section having 2 or 3 barbs on a single edge orientated at 45 or 135 degrees to the direction of travel of the fabric. Other needles specified are of diamond crosssection having barbs on two edges that are 180 degrees with respect to each other and square and rectangular cross-section needles having a barb on each of the 4 edges. The staple fibres are preferably a 1 to 5 oz./yd<SP>2</SP> corded layer of nylon, acrylic, polyester, polyvinyl or polyolefin fibres of length 0À5 to 6 inches and denier 2 to 15. The polyolefin fabric may be made from polypropylene, polyethylene, copolymers thereof or with other mono-olefins having up to 8 carbon atoms per molecule. Its weight is 1 to 6 oz./yd.<SP>2</SP>. Where a woven polypropylene scrim is used it is fed through the needle loom with the warp parallel to the direction of motion. A 45 degree orientation of the barbed edges of the needles provides sufficient adhesion of the corded fibres to the backing fabric without a great reduction in the transverse tensile strength.
Patent GB-117891-A (GB)
Title: Improvements relating to Hose Couplings.
Inventor: CARR THOMAS JOHN
IPC: F16L31/00
Filed: 1918-02-25
Abstract: 117,891. Carr, T. J. Feb. 25, 1918. Cup-leather joints.-In a hose coupling of the male and female type, the female member is provided with a cone-shaped packing c held in place within the female member by a screw-threaded ring d having a chamfered hole d' and slightly projecting rim e to take over the packing. The male member passes through the packing, a screwthreaded sleeve being employed to hold the male and female parts together. A hose clip, Fig. 4, may also be employed, consisting of two hinged parts l, m, tightened by a screw nut m<1>, and provided with a hook &c. n for engaging the coupling.
Patent GB-601591-A (GB)
Title: Method of protecting metals and their alloys during heat treating and fabricating operations
IPC: C21D1/70
Filed: 1944-02-24
Abstract: Metal alloys are protected from corrosion during a succession of one or more heat-treating operations and one or more fabricating operations by applying to the surface of the metal or alloy a protective film of another metal having a melting point higher than the temperatures employed in the heat-treating, such as copper, and then removing the film by dissolving or by reverse electrolysis after the completion of all the operations referred to above.  When applied to the treatment of stainless steels, the annealings are carried out in a controlled atmosphere furnace at temperatures ranging from 1,400 degrees F. to 2,200 degrees F. Specification 565,709 is referred to.
Patent GB-788400-A (GB)
Title: New or improved apparatus for finishing ampoules
Inventor: CHALLONER HARRY
IPC: B65B7/16
Filed: 1955-02-05
Abstract: 788,400. Sealing ampoules. CUXSON, GERRARD & CO., Ltd. April 12, 1956 [Feb. 5, 1955], No. 3485/55. Class 56. A method of and apparatus for sealing the glass or other thermoplastic tops of ampoules, comprises carrying the ampoules past a stationary source of heat within a closed casing, containing sterile air, air at a predetermined pressure, or an inert gas, there being no contact between the atmosphere and the interior of the casing. As shown, filled ampoules are fed on to a notched drum 11, rotated by a ratchet and pawl assembly 46, 47 one eighth of a turn on each upward stroke of a rod 43, and held by springs 15 against the top of a casing 1 having a slot 17 through which the ampoules pass, Fig. 5, on to a notched wheel 18, the gear wheel 51 of which is rotated via wheels 48, 49, 50 by the downward stroke of the rod 43. If the casing 1 is under pressure, air enters the ampoules as they are carried round to the wheel 26, at which point each ampoule is rapidly rotated by a rubbertyred roller 27, whilst the heat of an arc between electrodes 60 softens and seals its tip. The electrodes 60 are automatically advanced as they burn away by ratchet wheels 65 which are advanced one tooth on each rotation of the gear wheel 51 by the action of an arm 73 engaging a boss 74 on the wheel and connected to the ratchet wheels 65 by a shaft 71, cranks 75, links 77 and 78 (not shown) and pawls 76 (not shown). The electrodes 60 can be tilted by knurled rings 66 or by the handle 67 of a disc 68 pivotally connected to the carrier 62. From the wheel 26 the ampoules are dropped through a slot in the bottom of the casing 1 on to the drum 34 and fall clear without the atmosphere within the casing contacting the external atmosphere. The supply of ampoules to the shoot. 10 is regulated by a slide 53 moved upwards to release one ampoule each time the ratchet wheel 46 is indexed round. The power may be supplied by a motor through a gear box 35 and the drums and wheels may be rotated continuously or by Geneva stop means.
Patent GB-446544-A (GB)
Title: Improvements in containers for explosive charges in harpoon shells
IPC: F42B30/14
Filed: 1935-02-04
Abstract: 446,544. Harpoon shells. NORSK SPRAENGSTOFINDUSTRI AKTIESELSKAP, 21, Ovre Slottsgate, Oslo, Norway. Feb. 4, 1935, No. 3541. Convention date, Feb. 7, 1934. [Class 9 (i)] The watertight container 5 for the explosive charge 3 of a harpoon shell has its rear wall so shaped and weakened that it is easily penetrated by a projection 6 on the harpoon head when the container sets back on firing the harpoon. The projection 6 preferably contains the time fuze of the shell.
Patent GB-116303-A (GB)
Title: Improvements in and connected with Means for Vapourizing and Atomizing Liquid Fuel and for the Production of Combustible Mixtures for Motive Power Purposes.
Inventor: CARTER HERBERT CHARLES
IPC: F02M1/00
Filed: 1917-03-10
Abstract: 116,303. Carter, H. C., Vint, W. T., and Alexander, H. March 10, 1917. Vaporizers, external.-Carburetted air is heated and its constituents mixed in passing through an enlargement oi the induction pipe which contains an electric or a multitubular heater u. The charge in its passage meets in succession the baffling surfaces l, u<1>, r, and m<1>, some of which are ribbed or roughened. Extra air may be admitted by a hand-actuated ring valve it or the baffle v may serve as an automatic air valve, being provided with vanes upon which the stream of combustible mixture acts and turns the ring against the pull of a spring. The heater may be provided with relief valves t for the escape of gases produced by back ignition.