baber/WOPTO huggingface dataset:
Patent GB-755704-A (GB)
Title: Improvements in safety valves
IPC: F16K17/10
Filed: 1954-10-11
Abstract: 755,704. Fluid-pressure servomotor-control systems. DEWRANCE & CO., Ltd. Oct. 11, 1954 [Oct. 9, 1953], No. 29216/54. Class 135. A spring-loaded safety valve is opened by the pressure within a space coaxial with the valve spindle 18 and sealed at its ends by flexible parts connected with the valve spindle, the pressure within the space being controlled by a pressure-actuated auxiliary valve 41 and being limited to a maximum value which is low compared with the pressure of the controlled fluid. As shown the space comprises two chambers 6, 7 communicating with each other through an apertured web 10 in a hollow distance piece 16 separating the valve casing from the spring housing 14. The chamber 7 is sealed by a bellows 17 to the spindle 18 and the chamber 6 is similarly sealed by a diaphragm 4 clamped centrally between plates 5, 12 and peripherally between the housing 14 and the distance piece 16. The valve disc 2 co-operates with an inlet piece 1 and carries a piston-like member 30 working in a guide 3. The chambers 6, 7 are formed with ports 32, 33 closed by removable plugs. The compression of the loading spring 13 may be adjusted by a threaded member 22. The chambers 6, 7 are filled with liquid through a pipe 31 from an annular chamber 15 surrounding the spring 13. A pressure regulated by the auxiliary valve 41 is applied to the chamber 15 through a pipe 40. The outlet of the auxiliary valve 41 is also connected through an adjustable throttle 25 with a low-pressure discharge branch 24. The auxiliary valve which is loaded by a spring 27 and a weight 26 both acting through a lever is connected with the boiler drum or other source of pressure to be controlled by a line 23 containing a stop valve 28. The spring 13 is adjusted to exert a closing force somewhat in excess of the normal operating pressure of the valve but not above the safety limits of the apparatus to be protected. The throttle 25 is adjusted so that the pressure rise which takes place in the pipe 40 and therefore in the chambers 6, 7 when the normal operating pressure is reached and the auxiliary valve opens supplements the fluid pressure acting directly on the valve disc and so overcomes the spring 13.
Patent GB-767352-A (GB)
Title: A lighting unit for illuminating surgical operations
IPC: F21S8/00
Filed: 1954-10-11
Abstract: 767,352. Lighting fittings. QUARZLAMPEN GES. Oct. 11, 1954 [Oct. 14, 1953], No. 29234/54. Class 75(4) In a lighting unit for illuminating surgical operations an incandescent lamp is displaceably arranged within a reflector to vary the size of the illuminated area and means are provided for varying the terminal voltage of the lamp automatically with the displacement of the lamp in the reflector so that the light output from the lamp increases with increase in illuminated area. The terminal voltage is varied so that either the intensity of ilumination remains substantially constant or does not vary more than thirty per cent for all areas of illumination or the light output of the lamp increases at a smaller rate than the illuminated area. In the lighting unit shown seven light projectors, comprising incandescent lamps axially movable in reflectors 2, are mounted in a single casing 1. The displacement of the incandescent lamps of the six projectors arranged in a circle is effected by mechanisms actuated by an endless rope 3 moved by a knob 4. The rope also moves an eccentric 5 connected by a rod 8 to the sliding contact 7 of a variable resistance connected in series with the incandescent lamps. The terminal voltage may be varied by means of a stepped transformer. The projectors can be tilted by means of a further knob 10 to alter the distance between the projectors and the point of convergence of their axes.
Patent GB-393834-A (GB)
Title: A cover for protecting the pipes, top and grill on a gas cooking stove from being saturated with fat and boiling liquids
IPC: F24C15/14
Filed: 1932-10-19
Abstract: 393,834. Gas cooking-stoves. O'BERST, C. E., 64, Market Street, Watford, Hertfordshire. Oct. 19, 1932, No. 29278. [Class 126.] A device for protecting the hot-plate burners &c. of a gas stove from spilled fat and liquids comprises a plate adapted to cover or replace the ordinary hot-plate bars or grids, and formed with apertures 1 over the boiling burners and an aperture 2 with a hinged or removable cover over the grill, there being slots 3 above the grill burners to prevent heating of the plate. In another form the plate is made in three sections which fit in the hot-plate frame after removal of the bars.
Patent GB-1425491-A (GB)
Title: Gutter couplings
IPC: E04D13/068
Filed: 1973-06-20
Abstract: 1425491 Guttering DUROPENTA HOLDINGS (PROPRIETARY) Ltd 20 June 1973 [3 July 1972] 29389/73 Heading E1B A gutter connecting or terminating assembly comprises a stiffening member 4 shaped to embrace the end of gutter 1 and be received therewith in a cradle support 3, which in the case shown forms a connector. The stiffened end of the gutter abuts against a rib 12 and the outer face of the stiffener has a groove 8 receiving a rubber sealing gasket 9. Alternatively the inner face of the cradle may have a groove for receiving a sealing gasket. The members are all made of plastics. The stiffening member is adhered, welded or resiliently engaged on the end of the gutter.
Patent GB-233620-A (GB)
Title: Improvements in and relating to trolley or feed wire anchors for mines
IPC: E21F17/02
Filed: 1924-12-08
Abstract: 233,620. Mechling, M. J. Dec. 8, 1924. Hooks fixed to flat surfaces; eyes. - A hookheaded device for anchoring a trolly or feed wire for use in mines &c., comprises a shouldered shank 10 which is inserted into a prepared hole and has a spur 11, which embeds itself into the wall of the hole when the load is applied, and a divergent bracing-member 15 which abuts in the same plane as the shoulder and gives additional support to the hook. In a modification, an eye is substituted for the hook member 13.
Patent GB-504737-A (GB)
Title: Improvements in means for preventing ice formation on aircraft propellers
IPC: B64D15/02
Filed: 1937-10-29
Abstract: 504,737. Screw propellers. HEADEN, L. A. Oct. 29, 1937, Nos. 29603 and 34567. [Class 114] For preventing ice formation on an aircraft propeller, hot air or exhaust gases from the engine are led to the propeller boss and thence by external pipes to ducts in or along the leading edge of each blade. A fixed pipe B leading from the engine opens into a casing A secured to the propeller boss and gases passing therethrough proceed by way of a pipe A<4> to a tube or to a space E<2> in the leading edge of the blade E. The space is covered by a sheet metal piece G. In one construction, the outlet at the tip leads by way of a pipe E<5> to a Venturi opening E<3> across the tip. Alternatively, the Venturi opening may be contained in a separate piece fastened to the tip.
Patent GB-375177-A (GB)
Title: Improvements in or relating to siphon actuating mechanism for flushing tanks or cisterns
IPC: E03D5/092
Filed: 1931-10-26
Abstract: 375,177. Siphon-discharge waterwaste preventers. TATTON, E., Fountain Place Works, Liverpool Road, Burslem, Stoke-on-Trent. Oct. 26, 1931, No. 29615. [Class 26.] Siphon-actuating mechanism for flnshing cisterns comprises an actuating-rod member a connected by means of a ball-and-socket joint to a lever j which is capable of oscillation in a vertical plane about a pin m in a bearing l mounted in the wall of the cistern, the oscillatory movement of the lever j being limited by cam faces j<1> therein contacting with the edges of the bearing. An externally extending part of the lever j is provided with a handle s or is perforated to receive a chain or the like. In the form shown in Fig. 1 the ball-and-socket joint consists of a spherical ball d which rests on a seating g in a U-shaped member c attached to the lever by a pin i. In the form shown in Fig. 4, the ball d fits in a seating g<1> formed between the U-shaped member, which is in this case a casting and a nut h screwed to the lower part thereof.
Patent GB-409216-A (GB)
Title: Improvements in or relating to recording speedometers
IPC: G01P1/12
Filed: 1933-10-25
Abstract: 409,216. Recording - speedometers. HASLER AKT.-GES. VORM. TELEGRAPHENWERKSTATTE VON G. HASLER, Berne, Switzerland. Oct. 25, 1933, No. 29622. Convention date, Oct. 26, 1932. [Class 106 (iii).] In a recording speedometer having a toothed rack carrying a stylus and also driving an indicating pointer, the rack being coupled through a lost-motion device to a slide controlled by the speedmeasuring mechanism, the slide carries a lever projecting at one end within reach of a stationary stop and at the other end within reach of a stop on the rack, so that when the slide moves into its zero position the lever engages the two stops and moves the rack into its lowest or true-zero position with respect to the slide. The slide 4 is moved vertically in a slot 3 by the speed-measuring mechanism (not shown) and is coupled to a rack 6 by a pin 5 engaging a slot in the rack, whereby the vibratory movement of the slide 4 is not communicated to the rack. The rack gears with a pointer 11 and carries a stylus 7 writing on a record strip moved over a surface 1. A lever 16 is pivoted at 15 to the slide 4. When the slide moves to its zero position the lever 16 is rocked by a fixed stop 17 to engage a pin 18 on the rack 6 and push the rack downwards to its true zero position until the pin 5 is engaged by the top of its co-operating slot.
Patent GB-1468199-A (GB)
Title: Semi submersible dredging
IPC: E21C45/00
Filed: 1974-07-04
Abstract: 1468199 Suction dredging T SHIMIZU 4 July 1974 29644/74 Heading E1F A suction dredging method involves disposing the end 14 of an intake pipe 15 at sufficient depth below the water level to enable hydrostatic pressure to force water and solids through the pipe into the interior of a shell 12 where the solids can settle out in a tank 16. After settling the water and solids are conveyed separately to tha surface (the water by means of pump 17). An apparatus disclosed for carrying out the method (Fig. 2 not shown) employs a bucket chain to lift the settled solids and carries at the inlet end of the pipe a cutter device which is driven by the flow of fluid sucked in.
Patent GB-364168-A (GB)
Title: A variable speed drive for road rollers, tractors and the like
IPC: E01C19/26
Filed: 1930-10-03
Abstract: 364,168. Road rollers. AVELING & PORTER, Ltd. and PERKINS, F. A., Invicta Works, Rochester, Kent. Oct. 3, 1930, No. 29647. [Class 6 (i).] Comprises the combination of a frame 1a, a. slow or medium speed internal-combustion engine 1 mounted thereon, a gear-box 4 also mounted on the frame and driving the road wheels, and an endless flexible member such as 5 transmitting the drive from the engine shaft 2 to the primary shaft 3 of the gear-box, the said primary shaft being driven at or above the speed of the engine. In the construction shown the shaft 3 is driven by the chain 5 at engine speed, but the sprockets 6, 7 can be readily changed so that the shaft 3 may be driven at a higher speed. The chain passes over a jockey pinion 8<1>, and it may be enclosed. The last shaft 8 of a change-speed gear in the gear-box drives a shaft 13 through reducing gear 12 and the shaft 13 drives the road wheels through a single reducing train 14, 15.
Patent GB-779412-A (GB)
Title: Improvements in the manufacture of footwear
IPC: A43B13/28
Filed: 1954-10-16
Abstract: 779,412. Boots &c. GOULDBOURN, J. E. Oct. 17, 1955 [Oct. 16, 1954], No. 29840/54. Class 17 (2). A sole A of rubber, sponge rubber, or leather is formed or moulded with a recess a bounded by a flange a<SP>2</SP>. A strip B of rubber or plastic is inserted in the recess and the sole is applied to an upper on a heated last which causes vulcanization or curing of the strip to bond the sole and upper together as they are held in contact in an air press.
Patent GB-1068808-A (GB)
Title: Traverser
Inventor: RODEHUESER ARNO
IPC: B61J1/10
Filed: 1964-07-27
Abstract: 1,068,808. Traversers. DEMAG A.G. July 27, 1964, No. 29922/64. Heading B7J. [Also in Division B8] A traverser is moved along rails 1 by a motor 6 driving axle 8 through chain 7 and carries drive units 9a, 9b pivoted to the traverser at A, B, these units having friction wheels 10a, 10b driven by motors equipped with mechanical brakes. A tub runs from track 5a on to the traverser and is brought to rest by units 9a, 9b which have their brakes applied, the motor 6 then moves the traverser to the required track 5b or 5c and the units 9a, 9b are automatically operated to move the tub in the required direction on to the new track. A speed-reduction gear is used to slow down the traverser for accurate positioning at tracks 5a, 5b or 5c.
Patent GB-923220-A (GB)
Title: Method of manufacturing valve seats
IPC: F16K1/42
Filed: 1960-08-31
Abstract: 923,220. Making valve seats. ACF INDUSTRIES Inc. Aug. 31, 1960 [Sept. 11, 1959], No. 29981/60. Class 83 (2). [Also in Group XXIX] The method of making a valve seat 18 having an insert 30 of a synthetic plastic material such as tetrafluoroethylene comprises machining a groove 28 in the face seat to receive the insert, providing the groove with an insert-holding cross-section 29, placing the insert about a mandrel 40 located on the valve seat, applying a gradual pressure to the insert until it is bottomed in the groove, increasing the pressure on the insert to induced cold flow characteristics in the plastic material causing the resilient material to flow into the insert holding crosssection, and retaining the pressure a sufficient length of time to cause the plastic material to become interengaged with the insert holding cross-section of the groove. As shown in Figs. 3 and 6, the insert, which may be cut from a tube of polytetrafluoroethylene, or moulded to size, is inserted into the groove, which is formed with a buttress-like thread 29, by applying hydraulic pressure via a sleeve 46, plastic material flowing into the thread 29. In order to further secure the insert of a seat, a tapered punch is forced under pressure into the bore 27 of the seat, thereby pressing the metal of the bore towards the groove and so grip the insert ; alternatively, the metal of the seat may be swaged towards the groove by the use of rollers, or a hollow punch may be used which presses on the outer periphery of the seat, Fig. 9 (not shown), in order to deform the metal.
Patent GB-1185110-A (GB)
Title: A Setting Device for Resettable Counters
IPC: G06M3/02
Filed: 1967-06-29
Abstract: 1,185,110. Predetermined count. H. MULLER, and S. MULLER, [trading as J. HENGSTLER K. G. ZAHLERFABRIK]. 29 June, 1967 [30 July, 1966], No. 29982/67. Heading G4D. A presettable counter can be adjusted only when it is in zero condition. The numeral wheels 15 with conventional zeroizing mechanism comprising a hammer 13 and cam 14 are secured frictionally to associated gears meshing with adjusting gears 12. In normal operation a U-shaped bar 3 embracing all the gears 12 is spring-pressed clockwise (Figs. 1, 4) to prevent downward movement of any adjusting key 8 and its associated pawl 10. At the end of a count, however, depression of a resetting key 1, via projection 1a, depresses lever 5 to rock lever 3a and bar 3 counterclockwise. Subsequent depression of a setting key 8a acts through pawl 10 to step adjusting gear 12 and so alter the associated numeral wheel by one. Several steps may be made successively by locking the resetting key in depressed position through latch 19, Fig. 5. Normal resetting may be done electrically.
Patent GB-1156007-A (GB)
Title: Resin-Starch Composition and Paperboard Treatment.
IPC: D21H17/48
Filed: 1966-07-05
Abstract: 1,156,007. Coated materials. WEYERHAEUSER CO. 5 July, 1966 [5 Aug., 1965], No. 30080/66. Heading B2E.[Also in Divisions C3 and D2] A method of increasing the rigidity of cellulosic fibre materials, e.g. paperboard, comprises mixing a phenol-formaldehyde resin derived from formaldehyde and. phenol in a molar ratio of 1:1 to 3:1 and containing less than 5 wt % of free alkali expressed as NaOH relative to resin solids with cooked starch in a weight ratio of resin solids to starch of 1:2 to 10:1, to give a composition forming a colloidal precipitate on dilution with water at 25‹C to a level not above 30% solids by weight, diluting the composition until the colloidal precipitate is formed, applying the diluted composition to the surface of the material and curing it. Preferably 3-10 parts of composition solids are applied to 100 parts of material. In Examples such compositions are applied to a corrugating medium and a linerboard.
Patent GB-220527-A (GB)
Title: Improvements in and connected with pipe joints
IPC: F16L37/54
Filed: 1923-11-29
Abstract: 220,527. Lanninger, K. L. Nov. 29, 1923. Cup-leather joints; sleeve joints; hinge joints. -Pipes are coupled together in a flexible manner by means of a rigid sleeve a wherein there is disposed a hat-shaped packing b, the cylindrical portion of which tightly embraces the pipe, while the flange part is held securely in the sleeve and means formed on the pipe end and on the sleeve are adapted to connect those parts externally of the sleeve. The sleeves may be formed with a conical neck at each end, and the connection between the sleeve and pipe may be by a bayonet joint i, f as shown in Fig. 3. The flange of the packing may be disposed in a groove e in the sleeve a, and the end of the pipe may be hinged as at c<1> in the neck a' of the sleeve as shown in Fig. 4. The neck and the sleeve may be separately formed as in Fig. 6, and the packing flange may be secured between the screwed parts. In the modification shown in Fig. 7, a split clamping- collar m is fixed on the pipe end and is provided with a projection c<1> by means of which it can be connected with a projection a<1> on the sleeve neck.
Patent GB-392077-A (GB)
Title: Improvements in lighting devices for microscopes
IPC: G02B21/06
Filed: 1932-10-27
Abstract: 392,077. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlam pen; 11, Ehrenbergstrasse, Berlin). Oct. 27, 1932, No. 30126. Convention date, Dec. 8, 1931. [Class 39 (i).] An illuminating device for a microscope comprises a luminous electric discharge tube arranged to surround the optical axis of the microscope partially or entirely, and placed substantially at the level of the objective. In the form shown the lamp 11 is carried by supports 8 on the base of the microscope so as partially to surround the stage 7 and is provided with a covering plate 12, silvered on the inner surface. Alternatively, the tube may be carried by the movable part 4 of the support of the microscope. For use in photomicrography a tube having a filling of mercury giving an emission rich in blue and ultra-violet rays may. be used.
Patent GB-383395-A (GB)
Title: A felt hat press
IPC: A42B1/00
Filed: 1931-10-31
Abstract: 383,395. Hats. GWILLIAM, F. G., 69, Heywood Street, Alexandra Park, Manchester. Oct. 31, 1931, No. 30178. [Class 63.] Renovating.-A hat brim press for general use, particularly when a hat has been exposed to rain, comprises a pair of annular members between which the brim is pressed by metal grips secured to the outer edge. The members may be flat or may be moulded to conform to the shape of " snap-brim " soft felt hats. To enable the members to be engaged over the brim, the grips 2, 2a are slotted slidably to engage studs fixed to one of the members. When in the press, the hat may be hung up as usual.
Patent GB-601640-A (GB)
Title: Improvements in or relating to multiple position rotary electric switches
IPC: H01H19/58
Filed: 1945-11-12
Abstract: 601,640. Snap-action switches. TAYLOR ELECTRICAL INSTRUMENTS, Ltd., and RICH, D. Nov. 12, 1945, No. 30191. [Class 38 (v)] The fixed contacts 2 and a ring contact 3 of each deck of a multi-position rotary switch are carried on a plate 1, and bridged selectively by a cantilever leaf spring 4 carried on an insulating disc 5 rotatable with a shaft 8. The discs 5 are mounted on bosses 11 secured to the shaft and are held in place by ring discs 18, 19, the end one of which discs 19 has a spring extension 7 co-operating with positioning humps 6a on a fixed plate 6, and a stop 23 engaging lugs 24, 25 to limit the shaft-rotation. The fixed contacts are preferably of light metal having portions bent over through fixing holes 27, 29 in the plate 1. The bridging contact 4 has two arms 4a, 4b, the ends of which may either directly engage the contacts 2, 3 or be joined by a plate 35 bearing thereon, Fig. 8. Longitudinal movement of the shaft 8 is prevented by a clip 22b sprung into grooves in the shaft and its boss 9, Fig. 2, and rotation of the plates 1, 6 is prevented by a lug 14 on the latter engaging a recess in a mounting panel 10.
Patent GB-634539-A (GB)
Title: A multi-contact switch in particular for machine-tool carriers
IPC: H01H13/18
Filed: 1947-11-13
Abstract: 634,539. Control of several motors; controllers ; mechanical switches. REGIE NATIONALE DES USINES RENAULT. Nov. 13, 1947, No. 30241. Convention date, Jan. 16, 1947. [Classes 38 (iii) and 38 (v)] A multi-contact switch, in particular for machine-tool carriers, controlling electric motors effecting various drives of the machine is subjected to the action of a cam supported by the movable frame of the machine which depresses, against a spring, a switch-rod carrying contact rings which are so disposed relative to fixed contacts that a predetermined sequence and timing of making and breaking contacts can be arranged, whereby a tool head can automatically make various working cycles. Fig. 1 shows a frame 1 carrying at its extremities trunnions 2, 3 on which a rod 6 is mounted by the air of cylindrical members 4, 5. A bell-crank lever 8 pivoted in the upper part of the frame 1 is actuated by a cam (not shown) carried by a movable spindle-supporting frame of the machine. One of the arms 8 of the cam 8 is always in contact with an end piece 7 projecting outside the frame 1. Sliding freely on the rod 6 are distance-pieces 9 separated by abutment rings 10, which support the contact rings 11 mounted on insulating rings 12. The latter slide freely on distancepieces 9, the last of which bears against an end ring 13 which in turn bears against a spring 14. The frame 1 supports through insulating material two series of contact members 15 comprising lugs 16 which make or break contact with the rings 11 according to the position of the latter. The multi-contact switch can serve to operate sequentially one or more tool heads, also a succession of operations can be made. Fig. 2 shows a circuit diagram for controlling motors by means of the multi-contact switch, the contact rings of which are represented by 1P, 2P, 3P, 4P. The contacts shown correspond to the disconnected position of the machine. The multi-contact switch can be arranged to be movable and the actuating cam fixed.
Patent GB-895998-A (GB)
Title: Improvements in or relating to the testing of gear wheels
Inventor: BARBER CLIFFORD CHARLES
IPC: G01B5/20
Filed: 1959-09-04
Abstract: 895,998. Gear-testing apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 31, 1960 [Sept. 4, 1959], No. 30309/59. Class 106(2). Apparatus for checking the tooth pitch, pitch circle and bore of a gear-wheel comprises a stylus 26 fixed to a table 11 mounted on slides 4, 9 for movement in two perpendicular directions. The table has a transparent plate 15 bearing marks A, B, C related to a standard bore, pitch circle and tooth pitch and these marks are moved with the stylus and projected on to a screen 67, Fig. 1, bearing a fixed datum mark x. The stylus can also move vertically by means of a slide 17 held by a U-spring 20. The gear-wheel is mounted so that its initial position may be adjusted in two perpendicular directions and is urged by a spring-pressed plunger 39 acting on a lug 38, to turn when a stop 60 is released by flexing spring 55.