baber/WOPTO huggingface dataset:
Patent GB-329722-A (GB)
Title: Positively driven traversing windscreen wiper
IPC: B60S1/34
Filed: 1929-03-04
Abstract: 329,722. Wilson, M. S. Campbell-. March 4, 1929. Windows, cleaning. - A wiper connected to a rod 12 is moved across a wind screen by means of a pair of nuts R, L engaging right- and left - handed threads on a shaft 1 which is rotated by any convenient source of power. A slide 7 engaging cam projections 11 on the nuts and guided in a frame 10 is moved endwise at each end of the travel of the wiper by a projection 8 engaging a stop 13, thus causing one nut to be held against rotation and the other to be released, so that the motion is reversed. Bearing balls 6 may be inserted between the nuts and on the inner sides of the frame 10.
Patent GB-576960-A (GB)
Title: Improvements in or relating to screw-down steam stop and like valves of the lift type
IPC: F16K1/42
Filed: 1944-04-14
Abstract: 576,960. -Valve accessories. BURROWS, C. April 14, 1944, No. 6908. [Class 135] In a screw-down steam stop or like valve of lift type having a hollow removable seat member with a flange 10 at its upper end which is clamped around an aperture in the usual web 4 in the valve casing by a nut 14 threaded on to a screwed portion 13 of the seat member extending through an aperture 12 in the lower wall of the casing against which the nut reacts, apertures in the seat member for the free flow of fluid through the valve are constituted by bars 18, conveniently two diametrically arranged, which extend from the web 4 to the lower wall of the valve casing. The valve seat member is preferably solid at its lower end, as shown, with its upper face flush with the inside surface of the lower wall of the valve casing. The seat member may, however, be tubular. The bore 19 in the valve seat member is of square or other non-circular section to permit of it being held by a tool whilst the cap nut 14 is removed. A gasket 16 may be arranged between the nut 14 and a machined annular surface 15. The valve seat proper is formed by a rib 11 above the flange 10, the underside of which is machined.
Patent GB-144401-A (GB)
Title: Improvements in or relating to machines for boarding, softening, and graining leather
IPC: C14B1/40
Filed: 1919-03-20
Abstract: 144,401. Farrar, J. H. March 20, 1919. Machines for boarding, staking, and the like.- The machine described in Specification 23337/10 is provided with an automatically controlled auxiliary work-holding bar or roller A carried by a pair of levers C pivoted to adjustable brackets D on the machine and connected 'by rods H to extensions of the treadle levers I. When the treadle P is depressed, the table L is first moved up into position between the machine rollers B, Q, further movement of the treadle bringing down the roller A into contact with the work and also raising the lower machine roller Q into position as described in the said prior Specification. The roller A may be smooth or grooved spirally from the centre towards each end in order to spread out the work, its action being rendered resilient by adjustable springs N.
Patent GB-787405-A (GB)
Title: Improvements in or relating to magnetic tape recorders
Inventor: NAMENYI-KATZ LASZLO
IPC: G11B15/28
Filed: 1955-03-09
Abstract: 787,405. Driving sound film or tape. EPSYLON RESEARCH & DEVELOPMENT CO., Ltd. March 2, 1956 [March 9, 1955], No. 6940/55. Class 40(2). In a tape record apparatus, the drive of the tape past a magnetic head 26 may be instantly reversed by means of two capstan heads 3 which are each associated with inertia wheels 4 and are driven continuously in opposite directions by means of a spring-loaded resilient tyred jockey-pulley 21a, the direction of the drive of the tape being determined by the engagement of one or other of a pair of pinch rollers 10 with the tape and the respective capstan head 3. The right-hand capstan 3, as viewed in the Figures, is driven through a flexible coupling 5, overrun clutch 6, gear-box 7 and motor 8. The pinch rollers 10, mounted on arms 11 on pivotal shafts 12, are brought into operation by one or other of solenoids 16 acting on armatures 15 coupled to wire arms 14 connected to the shafts 12.
Patent GB-638465-A (GB)
Title: Improvements in or relating to rings, hooks and similar suspension or attachment devices for curtains and the like
IPC: A47H13/02
Filed: 1948-03-05
Abstract: 638,465. Suspending curtains. MANN, R. F., and MANN, H. R. March 5, 1948, No. 6943. [Class 52 (v)] A suspension or attachment device for curtains comprises a strip of wire bent into a loop 1 as in Fig. 1 or a hook 1a as in Fig. 2. The outer portions 2 of the strip are flattened and bent at right angles to form prongs 2a which lie in a plane perpendicular to the plane of the loop 1 or hook 1a. The prongs may be inserted through the curtain material and bent over against the portion 2.
Patent GB-802858-A (GB)
Title: Improvements relating to turbo-propeller aircraft engines coupled to drive variable-pitch propellers
IPC: B64C11/32
Filed: 1957-03-04
Abstract: 802,858. Variable pitch propellers. GENERAL MOTORS CORPORATION. March 4, 1957 [March 5, 1956], No. 7030/57. Class 114. In a turbo-propeller aircraft engine coupled to a variable pitch propeller, limited movement of the rotating propeller shaft axially of itself caused by the occurrence of negative or a reduction of positive thrust thereon actuates the pitch changing mechanism to set the propeller blades in feathered position. A propeller shaft 10 mounted in a reduction gear housing 8, Fig. 2, by adjacent ball and roller bearings 20, 18 has limited axial movement between a shoulder 28 on the shaft engaging the inner race of the ball-bearing 20 when the engine is driving the propeller and a point 48 where the outer race of the roller bearing 18 engages the housing 8. A pair of Belleville springs 22, 24 normally urges the races 20, 18 apart but are held in compression by the propeller thrust. If this falls below a predetermined amount the springs 22, 24 separate the races and rock a lever 36 to close a contact 46 and effect feathering of the propeller blades. A pilot's control lever 79, Fig. 1, actuates a fuel control 120 and also, at a predetermined engine speed closes a switch 80 in circuit with a battery BAT and the switch 46. Closure of the switch 46 energizes three solenoids 106, 116 and 128. The solenoid 116, through links 110, 112, actuates a blade pitch control lever 14 ; the solenoid 116 closes a fuel valve 119 between the fuel control 120 and the engine 2 and also closes a switch 122 to bring in a holding circuit which disables the switch 46 ; the solenoid 128 opens corresponding circuits in the other power units of a multi-engine aircraft so that only the one propeller can be feathered. To de-feather, a manual switch 84 in the holding circuit is opened. The device may operate on the occurrence of negative torque only either by the use of the device described in Specification 798,273 applied to a rod 142 pivoted to the link 110 or by the use of a single Belleville spring between the ball race 20 and a stationary part of the housing, the spring being normally unstressed.
Patent GB-559644-A (GB)
Title: Improvements in systems of electric motor control
IPC: H02P7/18
Filed: 1942-05-23
Abstract: 559,644. Controllers; thermal switches. DELCO-REMY & HYATT, Ltd., SUN-VIC CONTROLS, Ltd., BLAZEY, S. H., and DAVIS, N. R. May 23, 1942, No. 7503. [Class (iii) and 38 (v)] A motor M driving a pump is run in spasms, and its output is regulated by adjusting the ratio of running to rest periods so as to obtain a variable average output. Closure of switch 1, or contacts of devise D if switch 10 is closed, causes a quick acting thermal relay 2 to close, whereupon the motor starts. After an initial period determined by an adjustable bimetallic relay 3, contacts 7 close, and then an adjustable bimetallic relay 3<SP>1</SP> is heated and eventually opens its snap action contacts 7<SP>1</SP>, thereby deenergizing the relay 2 and stopping the motor. Consequent upon the relay 2 opening, the relay 3<SP>1</SP> cools, recloses its snap contacts and re-energizes the relay 2, causing restarting of the motor and repetition of the cycle of operations. Adjustment of the knob 6' alters the excess above ambient temperature at which the contacts 7<SP>1</SP> operate, and hence the ratio of times required for heating and cooling and consequently the ratio of periods of running and rest of the motor. Closure of a switch 11 causes continuous running of the motor and lamps 12, 13 indicate the state of operation.
Patent GB-381087-A (GB)
Title: Improvements in or relating to methods of generating high frequency electrical energy
IPC: H03B13/00
Filed: 1932-03-09
Abstract: 381,087. Converting. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. March 9, 1932, No. 7129. Convention date, March 9, 1931. [Class 38 (ii).] In arrangements for producing high frequency oscillations of substantially constant frequency, a photo-electric cell is subjected to rays which are modulated at high frequency by means under the control of a master oscillator generating oscillations of a relatively low and substantially constant frequency. In the arrangement shown, 'low frequency oscillations produced by a.temperature-compensated tuning fork oscillator 2 are employed to drive a synchronous motor 3 rotating a slotted or apertured disc 4 serving to interrupt rays from a light source 1 falling upon a photo-electric cell 5. High frequency oscillations thus produced in the circuit of the latter are led to an amplifier 7 which may comprise one or more frequency-doubling stages. The output from the latter may be employed directly in a load circuit or may be fed to an alternative form of frequency increasing arrangement, as shown. The latter comprises a cathode ray tube 8 having two pairs of electrodes to which the input oscillations are fed, a phase displacing device 9 being introduced as shown to cause the electrodes to be excited in quadrature. Thus the cathode ray is caused to sweep over an apertured screen 10 and by the use of an appropriate optical system to cause a photoelectric cell 11 to be activated at high frequency. The pulsating current thus produced may be utilized for controlling power amplifiers feeding radio transmitters. The light interrupting disc 4 may be replaced by a cylinder engraved with parallel lines forming a diffraction screen in the first-described arrangement. The Specification as open to inspection under Sect. 91 (3) (a) comprises a modification of the second arrangement in which the photo-electric cell 11 is dispensed with, the high frequency output being taken directly between the screen 10 and the cathode of the tube. This subjectmatter does not appear in the Specification as accepted.
Patent GB-760145-A (GB)
Title: Improvements in or relating to methods of and means for obtaining a precision fit between members
IPC: F16C35/077
Filed: 1954-03-12
Abstract: 760,145. Making bearings. L'ALUMINIUM FRANCAIS. March 12, 1954 [March 13, 1953; Feb. 9, 1954], No. 7216/54. Classes 83 (2) and 83 (4). [Also in Group XXXIV] A method of obtaining a precision fit which is but little affected by variations in temperature, between two members which are made of materials having different coefficients of thermal expansion, e.g. one member of steel and the other of aluminium or magnesium alloys, and which are fitted one within the other, comprises interposing between the members a liner, e.g. of ebonite, hard rubber or synthetic plastics which has a coefficient of thermal expansion higher than the coefficients of expansion of the materials out of which the said members are made. In an embodiment a ball-bearing assembly 1 is provided with a plastic lining 2 in a recess formed in the outer race and when the bearing is inserted in a housing 4 the precision fit is maintained over wide variations in temperature. Alternatively, the plastic lining may be attached, e.g. by casting, cementing in place or force-fitting to the internal bore of the housing 4. In another embodiment a steel shaft 6 may be fitted within a bore in a light alloy housing 4 with the interposition of a plastic ring 2. When using liners of polyamide base plastics, which lose their elastic resistance properties proportionally with rise in temperature, the lining is cast or injected into a recess 12 (Fig. 5) the bottom of which is joined with circumferential grooves 14 arranged with opposed abutment surfaces 15 and 16. At working temperatures the lining material expands circumferentially and axially, the latter being limited by reason of its attachment to the supporting surfaces 15 and 16 of the inner member. This double expansion produces a proportional deformation in a radial direction, which is added to the linear expansion of the material in this direction, and due to the high coefficient of expansion of the lining the increased clearance between the members, which would otherwise occur due to the coefficient of expansion of the outer member being higher than that of the inner member, is taken up and the precision fit is maintained within allowable tolerances within a temperature range of - 20‹ to 80‹ C.
Patent GB-434533-A (GB)
Title: Improvements in golf clubs
IPC: A63B59/00
Filed: 1934-03-07
Abstract: 434,533. Golf clubs. MACALLUM, F., and BAIN, M. S., 307, Washwood Heath Road, Birmingham. March 7, 1934, No. 7218. [Class 132 (ii)] A golf club having a tubular metal shaft 14 secured to the socket 11 of the club head is provided with a torsion member 12 extending longitudinally within the shaft and secured at two spaced positions to the socket and shaft respectively. The torsion member is formed as a solid rod of a light resilient alloy and is screwed into the lower end of the socket 11 and locked by a rivet 13. The reduced upper end of the torsion member enters a plug 15 of wood or metal and is secured to the plug and shaft by a rivet 18. The shaft is secured within the socket by brazing and/or rivets. Contact between the shaft and torsion member is prevented by a packing of aerated rubber 22, or by rubber or other rings spaced within the shaft.
Patent GB-785236-A (GB)
Title: Method of and apparatus for producing coatings of hard carbides
IPC: C23C16/448
Filed: 1955-03-11
Abstract: In a method of producing coatings of hard carbides of the metals of the 3rd-6th groups, e.g. Ti, V, W, on metallic or non-metallic objects by reaction of halides of the metals with hydrogen and hydrocarbons, a gas mixture is used which contains hydrogen, an amount of volatile hydrocarbons not greater than that corresponding to equilibrium between carbon and hydrogen and the volatile hydrocarbons at the deposition temperature of 800-1200 DEG C., and an amount of metal halide which is no more than, but preferably is as much as, will react to form the metal carbide.  The gas mixture may be produced (a) by the action of hydrogen halide and/or halogen, with or without hydrogen, on the carbide of the carbide-forming metal with or without free carbon, or (b) by passing hydrogen halide and/or halogen, with or without hydrogen, over the metal the carbide of which is to be formed and mixing the resultant hydrogen and metal halide with hydrogen and hydrocarbon, e.g. methane, (produced by passing hydrogen over carbon) in the coating zone.  Coatings which consist of mixtures of carbides may be produced; nitrides may be incorporated in the coatings, e.g. by adding nitrogen and/or compounds giving up nitrogen or a gas containing nitrogen, such as ammonia, in the coating zone to the carbide-producing mixture. Various alloy steels are mentioned as base materials.  After application of the coatings, the base materials may be hardened by heat-treatment in a protective atmosphere, preferably pure nitrogen, and quenching.  The coatings may be used for the surface protection of tools, machine parts &c., such as files, rasps, bearings, valves, thread guides of spinning and drawing tools.
Patent GB-478465-A (GB)
Title: Improvements in attachments for milling and like machine tools
IPC: B23C1/02
Filed: 1937-03-12
Abstract: 478,465. Milling - machines. BROWN & SHARPE MANUFACTURING CO. March 12, 1937, No. 7290. Convention date, March 17. 1936. [Class 83 (iii)] [also in Group XXIV] A milling &c. machine provided with overarms comprises a standard 21, Fig. 1, a main spindle 27 mounted for rotation in the standard, an attachment 40 having a housing carrying a drive spindle, means on the side of the standard for supporting the attachment housing whereby this may be adjusted longitudinally, and driving means between the main spindle and the attachment spindle for maintaining continual driving engagement with the latter in any of its positions of adjustment while leaving the main spindle free to function in its normal manner. The attachment housing sleeve is supported in a split bracket 42, Fig. 12, carried at the side of the standard wherein the sleeve is rotatably and axially adjustable ; the forward end of the sleeve carries a rotatable head 140, Fig. 9, which houses the vertically adjustable attachment spindle 150. This spindle is driven by bevel gearing from a central spindle 53 which runs the length of the attachment sleeve and is rotatably mounted therein. A long gear 60 integral with the spindle is driven in all positions of axial adjustment of the spindle by gearing connecting the gear 60 with the main spindle of the machine. The gearing for this purpose is housed in a casing 65, Fig. 12, rotatable about the axis of the main spindle and held, with the last wheel of the driving train in alignment with either one of the openings for the overarms, or with the attachment bracket, by a stud 75. This enables the attachment housing to be positioned in the place of either of the overarms with the drive to the main spindle in engagement. One of the wheels of the train may be slid out of engagement to disconnect the drive to the attachment. A hinged bracket 120, Fig. 4, is clamped around the overarms and a part of the attachment to obtain rigidity, and graduations 129-131 indicate the inclination of the attachment spindle to the horizontal. The end of the attachment driving spindle 60, Fig. 8, is supported in a bearing 105 at the rear end in the sleeve 41, a telescopic guard 90 encloses the end of the sleeve, the parts of the guard being forced into the collapsed position by a tension spring 101 and the outer end of the sleeve drawing these apart when the attachment is moved axially rearwardly such as when positioning the attachment in the inoperative position, Fig. 1. A lubricator 109, Fig. 8, is connected to a pipe 108 which passes into the hollow end of the spindle 60 for distribution.
Patent GB-579473-A (GB)
Title: Improvements relating to fluid pressure power supply systems
IPC: B60T15/48
Filed: 1944-04-20
Abstract: 579,473. Pneumatic power transmission. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. (Bendix-Westinghouse Automotive Air Brake Co.). April 20, 1944, No. 7321. [Class 8 (ii)] A compressor 10 initially charges the high and low pressure reservoirs of a pneumatic circuit in parallel till a certain pressure is reached; the compressor normally forms part of the closed circuit; automatic pressure regulating means are provided. Fig. 1 shows a circuit including low- and high-pressure reservoirs 6, 7 initially charged in parallel by the compressor delivering through a pipe 15 and a control valve 17, and a pipe 18 with a check valve, and drawing from atmosphere through a check valve 13. The valve mechanism 17 comprises diaphragms which respectively carry the stem of a valve 26 and a rod 39; the reservoirs are each connected with one side of the diaphragm by pipes such as pipe 44 having valve 42 which opens pipe 44 to atmosphere so long as pressure in reservoir 6 is less than a set value. At filling below this pressure reservoir 6 is supplied through the open lower valve seat until its pressure acts on the diaphragm causing the valve 26 to close this seat and open the upper seat through which the reservoir pressure feeds the compressor to feed the highpressure reservoir. The pressure in reservoir 6 thus falls again reversing valve 26 causing the compressor to draw again from atmosphere to fill the reservoirs. This continues till pressure in high-pressure reservoir 7 acts on the lower diaphragm to cause its rod to hold the valve off the lower seat, the compressor then circulating air idly. Fall of pressure due to leakage in either reservoir automatically actuates the valve mechanism to restore the pressure. The system operates a brake, the cylinder 48 of which is connected to a valve device 51 actuated by a lever so that the brake may be actuated by air from the high-pressure reservoir 6 and may exhaust into the low-pressure reservoir. In another form the rod 39 and the high-pressure diaphragm and its associated valve 42 are omitted; the highpressure reservoir is connected with the lowpressure reservoir through a pipe which joins the exhaust pipe from the brake valve and contains air adjustable relief valve permitting flow of air between the reservoirs only when their pressure difference is sufficient.
Patent GB-110714-A (GB)
Title: Improvements in and connected with Percussion Fuses for Projectiles.
Inventor: STUART EDWIN ROY
IPC: F42C15/22
Filed: 1917-05-21
Abstract: 110,714. Stuart, E. R. May 21, 1917. Projectile fuses.- Relates to percussion fuses in which the detonator or other suitable igniting-means is carried by a member slidably mounted transversely with respect to the firing-pin and normally held in engagement therewith. Accord. ing to the invention, the carrier of the igniter, when freed from engagement with the firing-pin, is moved into the operative position by centrifugal force. In the construction shown, a slidable member, carrying a pellet of fulminate 24, and unsymmetrically weighted, is normally locked in the position shown in Fig. 2 by the end 21 of the firing-pin 16 passing through it. The pin 16 is itself locked by centrifugal bolts 40. When the projectile is in flight, the firing-pin is freed and is thrust forward by a spring 19 so that its head 17 protrudes beyond the nose of the fuse-body. The fulminate-carrier, being released, is moved by centrifugal force so that the fulminate is brought into line with the firing-pin, the fuse being thus armed. A sealing cap 50 is soldered or otherwise secured over the head of the firing- pin, and removed just before the projectile is placed in the gun.
Patent GB-242733-A (GB)
Title: A new or improved process for the manufacture of confectionery
IPC: A21C15/00
Filed: 1924-03-22
Abstract: 242,733. Carsons, Ltd., and Smith, G. A. March 22, 1924. Confectionery or sweetmeats.-In the manufacture of confectionery, a filling substance is insulated from the covering substance by a receptacle, or receptacles, of wafer material in which the filling substance is enclosed, the production of " bloom, " normally due to the direct contact of the filling and covering substances, being thereby prevented. Examples of filling substances, suitable for use singly or in combination, are caramel, praline nougat, noisette, creams or pates, almond, marzipan or fruit pastes, jams, jellies and soft boiled toffee. The covering substance, which may be chocolate, is applied mechanically or by hand. The receptacles are of baked batter and may be of conical, partial conical, or hemispherical form, the wafer lid being either flat or slightly concaved in order that it may be sprung into position. Two receptacles may be placed mouth to mouth and closed by a common lid or two lids may be used.