baber/WOPTO huggingface dataset:
Patent GB-1122081-A (GB)
Title: Improvements in strip flattening
Inventor: LAWSON KENNETH THOMAS
IPC: B21D1/05
Filed: 1966-01-12
Abstract: 1,122,081. Straightening. HEAD WRIGHTSON & CO. Ltd. 12 April, 1967 [12 Jan., 1966], No. 1458/66. Heading B3E. Levelling apparatus for continuous metal strip comprises a first series of bridle rolls 1, 2, 3, 4, some at least of which are driven, which series is adapted to positively drive the strip, a second series of bridle rolls 5, 6, 7, 8, some at least of which are driven, which series is adapted to positively drive the strip at a rate exceeding the rate of drive by the first series by a preselected proportion up to 2%, and a three roll system between said series defining a path for the strip in the course of which the strip passes through a gap between the last bridle roll 4 of the first series and the middle roll 10 of the three roll system, around the first roll 9 of the three roll system, back through the gap and around said middle roll 10, through a gap between said middle roll 10 and the first roll 5 of said second series of bridle rolls, around the third roll 11 of the three roll system and back through said second gap, the spacing of the various rolls being such that they are maintained in nesting relationship by the tension in the strip to be handled, the ratio of the thickness of the strip to be handled to the diameter of said first and third rolls 9, 11 of the three roll system not exceeding 0À04, whilst the radius of these rolls is such that bending of the strip to be handled to this radius in combination with the tension to which it is subjected will cause plastic deformation thereof, said first and third rolls 9, 11 being located by the strip itself and the remaining rolls being positively located. The position of the roll 10, which may be of larger diameter than the rolls 9, 11, is adjustable by a jack. For threading the strip through the apparatus initially the rolls 9, 10, 11 are withdrawn to positions 9a, 10a, 11a. The strip is then fed in conjunction with pinch rolls 12, 33 and guided by cylindrical guides 31, 32 and a plate 34. After threading, the pinch rolls 33 are retracted, the plate 34 removed and the roll 10 is lifted, taking with it the loop of strip formed in the guides 32 and the rolls 9, 11. In alternative arrangements for threading, Figs. 6, 7 (not shown), the rolls 9, 10, 11 are moved to position in which a straight threading path is defined between the rolls 4, 5, the bridle rolls being moved apart to allow passage of the rolls 9, 10, 11. Five rolls bridle units may be used, Fig. 7 (not shown). Two or more three roll systems may be provided between the first and second series of bridle rolls, the systems being separated by additional bridle or deflector rolls.
Patent GB-587814-A (GB)
Title: Improvements in domestic firegrates
IPC: F24B1/18
Filed: 1945-01-18
Abstract: 587,814. Domestic firegrates. HUNT & SON, Ltd., R. J., and PUSEY, H. O. Jan. 18, 1945, No. 1473. [Class 126] In a firegrate for a combination gas and solid fuel fire a gas fire is pivotally mounted across the front of the solid fuel grate so that it can be turned forwardly and downwardly to allow an ashpan placed beneath the grate to be withdrawn when required. Below the solid fuel grate 10 is a supplementary gas ignition burner 16 while in front of and below the grate is the gas fire 18 mounted in a hollow metal casing 21, and below which is a horizontal gas supply pipe 22 having burner nozzles 23. When in use the fire stands erect in front of the solid fuel grate, but in order to remove the ashpan 15, it may be pivoted forwardly about the burner tube 22 until it occupies a substantially horizontal position in front of the grate. Metal dogs 25, provided on each side of the gas fire, are connected by an angle section plate 26, which is held firmly into the hearth by rag bolts 29, and the forward edge of which forms an abutment 28 against which rests the bottom of an angular plate 24 covering the front of the gas fire. When the cover plate 24 is in a closed position, its edges extend into rabbetted flanges 33 on each of the dogs and downwardly projecting lugs 35 engage semicircular grooves 34 on the upper part of the dogs. The dogs are of box like construction and the regulating members for the gas supply may be mounted inside them. To permit a supply of air reaching the solid fuel fire when the cover plate is in position, a screw 36 is provided which passes through the plate and engages an abutment on the front of the grate, so that when the screw is turned, the cover plate swings away from the abutment 28. Damage to the gas fire, through being too violently erected or dropped, is prevented by plate springs fixed to the dogs which act against pins formed on the gas fire casing.
Patent GB-157768-A (GB)
Title: Improvements in steam, gas or like engines
IPC: F01B17/04
Filed: 1921-01-10
Abstract: 157,768. Groenewegen, G. Jan. 10, 1921. Cam gears; beat or lift valves; slide valves, cylindrical and piston.-In order that the pressure of the initial steam supply shall have an effective turning movement on the crank, the steam is supplied to the cylinder after the dead centres have been passed. To avoid dead spaces greater than the normal clearance, the cylinder 2 is reciprocated by eccentrics on the shaft in such a manner as to increase the normal compression to the pressure of the steam supply. The admission is controlled by lift valves 7, 8 operated by oscillating cams 10, and the exhaust, which passes through a ported, stationary, surrounding casing 1, by the piston 14 in conjunction with the reciprocating cylinder 2.
Patent GB-763770-A (GB)
Title: Improvements in cartons
IPC: B65D5/42
Filed: 1955-01-18
Abstract: 763,770. Cartons. JONAS, L. Jan. 18, 1955, No. 1525/55. Class 18. A carton has part of a wall weakened for tearing out tc form a display opening, the opening being carried by transparent sheet permanently secured internally.
Patent GB-1521781-A (GB)
Title: Apparatus for producing two reelable flat continuous sheets of film from tubular blown thermoplastic films
IPC: B26D3/00
Filed: 1977-03-03
Abstract: 1521781 Cutting apparatus PAKCEL CONVERTERS Ltd 3 March 1977 [15 Jan 1976) 01530/76 Heading B4B Apparatus for producing two reelable flat continuous sheets from a flat tube of thermoplastics material comprises a pair of guide wheels 3 supported to extend into the tube so as to engage and maintain the longitudinal edge creases of the tube in contact with coacting slitting blades 5 whereby the tube is slit and divided at the creases into two flat sheets. Each wheel 3 and co-acting blade 5 are mounted on a respective bracket 6 connected to a rod 8 which is rotatable in a carrier 11; the carrier is slidably mounted on a shaft 18 and loaded by a spring 12 and in order to cause the wheels to engage with the creases of the tube. The shaft is fixed to a support 14 adjustably mounted on a bar 1.
Patent GB-564202-A (GB)
Title: Improved adjustable comparator gauge for measuring taper or parallel-sided holes or bores
IPC: G01B5/12
Filed: 1943-01-30
Abstract: 564,202. Hole gauges. SHARDLOW & CO., Ltd., A., and PUGH, S. Jan. 30, 1943, No. 1598. [Class 106 (ii)] The interior of the hole to be measured is engaged by two pins 7a adjustably fixed in a boss 2c on a plate 1, and by a pin 4 mounted on a lever 3 pivoted at its centre 3a and having its inner end in contact with the plunger of a dial indicator 6. The pin 4 is removed from contact with the hole by pressing a plunger 11 which rocks the lever 3 against the pressure of the dial indicator spring: Means are provided for correctly aligning the device in the hole and for determining the distance to which it is inserted. These means comprise fingers 8, so pivoted to the plate 1 that they can be turned to engage the outer face of the workpiece. Three sets of fingers are provided, the fingers in each set being of different lengths, a corresponding finger from each set being turned into the operative position 8a. In a modification, pins corresponding to the pins 7a are secured directly to the plate 1 and are not adjustable, the depth of insertion being fixed by the contact of the workpiece with the plate 1. In a further modification, each set of fingers 8 is replaced by a single pin slidably adjustable in the plate.
Patent GB-1412733-A (GB)
Title: Optical systems
IPC: G03B3/02
Filed: 1972-01-13
Abstract: 1412733 Optical systems REDIFON Ltd 25 Aug 1972 [7 Sept 1971 13 Jan 1972 18 Aug 1972] 41648/71 1638/72 and 38571/72 Heading G2J  An optical arrangement for compensating for the tilt in an object surface 12 or for producing a tilt in an in-focus image surface, e.g. in flight simulating apparatus, comprises two optical systems 11, 13, the first 11 adapted to form an image 14 of the object surface 12, and the second 13 adapted to receive radiation from 14 and form an image 15, one or both of the image surfaces 14, 15 being tilted with respect to the optical axis of the system 11, 13 producing it. A device 10 is provided for deflecting radiation with respect to one or both axes so that the surfaces 14, 15 have different angles of tilt, this angle being adjustable by movement of the device 10, or of one or more elements of the device 10, relative to one or both systems 11, 13. The axes may be coaxial or mutually inclined, and the device 10 may be a lens, as shown, or a plane mirror, a lens-mirror combination or a prism or a lens-prism combination and movement of the device or element may be in its own plane, i.e. normal to the plane of the paper in Fig.2, or about an axis normal to the paper, e.g. the axis (24) of the plane mirror (20) in Fig.3 (not shown), or in its own plane about an axis in the plane of the paper, e.g. where the device is a prism. Such systems permit image tilting to be achieved without substantially deflecting the light beam, see e.g. Figs.8 and 9 (not shown). The relative motion of the device 90, Fig.10, with respect to the systems 91, 94 may be achieved by movement of elements, e.g. plane mirrors 92, 93, forming part of the systems. The mirrors are tilted in opposite directions at the same speed so that the optical axes 95, 96 appear to rotate about points 97, 98, the lens 90 acting as a field lens and focusing 97 on 98.
Patent GB-574643-A (GB)
Title: Improvements in or relating to apparatus for controlling the supply of fuel to internal-combustion engines
IPC: F02D1/00
Filed: 1942-02-09
Abstract: 574,643. Carburetters. UNITED AIRCRAFT CORPORATION. Feb. 9, 1942, No. 1706. Convention date, Dec. 14, 1940. [Class 7 (iii)] In order to control the fuel supply in accordance with the density of the intake air, a sample of this air is drawn by a pump 62, Fig. 2, -through a restricted orifice 72 in a byepass 66, 76 on the intake pipe 18, and the pressures at opposite sides of the orifice 72 are conveyed by pipes 30, 32 to the opposite sides of a diaphragm 38, Fig. 1, adjusting the position of the rotor casing 49 of a variable. displacement fuel pump 50 supplying fuel to an injection nozzle 26. The area of the orifice 72 is varied in accordance with engine speed by a governor 82 adjusting a spring-pressed plug 78 in the orifice. The contour of the plug may be designed to compensate for changes in the volumetric efficiency of the engine, and also to enrich the mixture at higher powers. A restriction 98 may be provided in the pipe 32, and hand control of the fuel may be obtained by a valve 96 adapted to connect the two sides of the diaphragm 38. The pressure head across the orifice 72 may be indicated at 100. The density detecting device may be as described in Specification 549,957, [Group XX].
Patent GB-955983-A (GB)
Title: Improved toy gun
IPC: F41C3/08
Filed: 1960-07-29
Abstract: 955,983. Toy guns. LOUIS MARX & CO. Ltd. July 29, 1960 [April 15, 1960], No. 1715/62. Divided out of 955,982. Heading A6S. A toy gun has a movable part to produce a percussive firing noise, means for producing after sound, linkage connecting the movable part to the sound producing means for storing energy therein and means whereby the stored energy is automatically released following the percussive firing noise. A trigger 20 has a branch 116 which lies beneath one end 114 of a lever 108 pivoted at 110, the other end bearing upon the top wall 104 of a bellows. Pulling the trigger compresses the bellows, releasing the trigger allows the bellows to expand and emits a sound through a reed 102. The finger tab 18 carries a hammer for firing percussion caps. The other branch 122 of the trigger holds the hammer in cocked position. The branch 116 co-operates with a stop 118 to limit the restoring movement of a spring 120. Lost-motion between the branch 116 and end 114 may allow firing the gun without sound.
Patent GB-364357-A (GB)
Title: Improvements relating to fluid operated metal cutting and like machine tools
IPC: B23Q5/26
Filed: 1931-01-19
Abstract: 364,357. Hydraulic transmission of power. ARCHDALE & CO., Ltd., J. and WRIGHT, I. H., Ledsam Street, Birming- ham. Jan. 19, 1931, No. 1756. [Classes 69 (ii) and 135.] In hydraulically operated machine tools, comprising a cylinder b, a pump c of constant capacity, and a pump d of variable capacity, the output of the pump d is regulated, within limits determined by stops i, by means of a piston f in a cylinder g ; liquid passes to or from the cylinder g at a rate determined by a throttle valve under the control of a valve m operated by some moving part of the machine. The throttle valve comprises pairs of adjustable screw plugs l and non-return valves k. Pressure relief valves n are provided.
Patent GB-1445107-A (GB)
Title: Pitch varying mechanisms for a variable pitch fan
IPC: F02K3/04
Filed: 1973-01-12
Abstract: 1445107 Toothed gearing ROLLS-ROYCE (1971) Ltd 21 Dec 1973 [12 Jan 1973] 1776/73 Heading F2Q [Also in Division F1] In the mechanism for varying the pitch of fan rotor blades described in Specification 1,375,988, means selectively operable for feathering the fan blades when the drive to the rotor stops comprises a clutch having two parts which are normally disengaged and which are adapted to be engaged and to disconnect the output of the differential gear of the mechanism from the pitch-changing reduction gear to static structure. Each fan blade of a ducted fan gas turbine engine is rotatable about its longitudinal axis to vary its pitch by means of a torque tube 15, the torque tubes being rotatable for this purpose by means of an actuator shaft 23 through the mechanism described in Specication 1,375,988. The mechanism is modified in that sun wheels 37, 38 are not permanently connected to one another but are instead connected by means of splines 41 on a plate 42 which are maintained in engagement with splines 39, 40 of the sun wheels by means of a spring 45 which presses the plate 42 against a flange 47 on the fan rotor. Normally there is no relative motion between the plate 42 and the flange 47, but a small amount of relative rotation occurs when the actuator shaft 23 is rotated to change the fan blade pitch. The plate 42 forms one plate of a clutch and is normally out of engagement with the other plate 90 of the clutch. If it becomes necessary to shut down the engine during flight, a second actuator (not shown) is used to rotate a gear 48 which is connected to the plate 90 by a shaft 49. During this rotation, a screw-threaded engagement 91 with static structure causes the plate 90 to advance axially to engage the plate 42 and then displace the plate 42 until the splines 41 are disengaged from the splines 40, the axial movement and the rotation both ceasing when a stop 92 engages a stop 93. Sun wheel 38 then slows down rapidly while the clutch plates 42, 90 slip. Continued rotation of the shut-down engine due to its inertia and the windmilling effect of the forward air speed of the aircraft causes relative rotation between the planet carrier 57 and the sun wheel 38 whereby the planet wheels 52 are rotated about their own axes to change the fan blade pitch. When the fan blades pass into reverse pitch, the windmilling forces acting on the fan likewise become reversed, so that the fan slows down. Eventually, the fan blades settle in a feathered position in which the windmilling torques on the fan and the turbine are in balance and the fan rotor is substantially at rest. A stop may be provided to prevent the fan blades from being turned much beyond the normal reverse thrust position, whereby the blades are held in a reverse third position on the stop to give maximum slowing down torque. Once the fan blades have stopped, the windmilling effect feathers them as before. Bobweights may be provided to oppose the centrifugal turning moments on the fan blades.
Patent GB-1083527-A (GB)
Title: Fluid-flow controlling apparatus
IPC: F16K3/312
Filed: 1966-01-14
Abstract: 1,083,527. Valves; pipe stoppers. FMC CORPORATION. Jan. 14, 1966 [Feb. 12, 1965], No. 1788/66. Headings F2P and F2V. The adjacent pipe ends 14 which co-operate with a rectilinearly-movable spectacle-plate 60 have convex portions 14 on which two-part collars 25 are swivelled. The plate 60 has blind and open sections 62, 64 interconnected by a stem 66; each section has opposed and oblique annular faces 68, 72 which diverge from the stem 66. Manual rotation of a nut causes movement of a threaded shaft 82 and hence plate 60 in one direction on the other two faces 68 or 72 coacting with collar edges 38 to swivel the collars 25 into a position where they sealingly engage either pair of faces 68 or 72 depending upon which section of the plate is aligned with the pipe ends 14. The edges have camming lips 40 to facilitate initial entry of either section 62, 64 into the gap 20 between the pipe ends. The operating mechanism is carried by a frame clamped to the pipe ends which may be angularly adjusted with respect thereto through 360 degrees.
Patent GB-122503-A (GB)
Title: Gramophone Sound-box.
Inventor: PUGH FREDERICK GEORGE
IPC: A44B17/00
Filed: 1918-02-01
Abstract: 122,503. Pugh, F. G. Feb. 1, 1918. Sound-box cases ; diaphragms; tool arms and mountings. - The uase, diaphragm, and stylus bar of a sound-box are made entirely of wood. The case is of hard wood, preferably lignum vitµ, the back 1 being in one piece, and the front 4 divided along a vertical diameter and provided with bow-shaped apertures. The front and back are secured by screws 2. The diaphragm G also is of hard wood, preferably lignum vitµ, and is cut with the grain at right angles to its surface. It is dished as shown, and is thinned towards its rim which is held in rubber gaskets 7. The stylus bar 8 is of the same material and is held between rubber washers placed between two lugs 5 formed on the front 4 of the sound-box. A steel pin 9 passes through the lugs 5, rubber washers, and stylus-bar. The stylus bar is fastened to the diaphragm by a small screw sealed in wax.
Patent GB-694567-A (GB)
Title: Improvements relating to headrests for chairs, settees and like furniture
IPC: A47C16/00
Filed: 1950-01-24
Abstract: 694,567. Head-rests for furniture. FLEET, C. B. March 2, 1951 [Jan. 24, 1950], No. 1848/50. Classes 52(i) and 52(ii) A head-rest for a chair, settee or bedstead, comprises a cushion or pillow 2 detachably supported by the running nooses 4 of straps 3 which are fixed to the chair back and can be adjusted in length by buckles 5. Alternatively, the buckles are dispensed with and the point of attachment of the straps to the furniture can be altered by a plurality of press-stud connections, Fig. 4 (not shown). The cushion 2 can be swung over the chair back to act as a protecting pad for the furniture. In a modification, the straps 3 are not fixed to the furniture and are fitted with counterweights.
Patent GB-1114712-A (GB)
Title: Improvements in or relating to apparatus for inducing periodic stress and strain in an elongate elastic element
IPC: E02D7/18
Filed: 1964-06-02
Abstract: 1,114,712. Pile driving. J. C. ORKNEY. 21 May, 1965 [2 June, 1964], No. 1855/68. Divided out of 1114711. Heading E1H. [Also in Division B4] The subject-matter of this Specification is substantially identical with that described in Specification 1114711, but the claims are concerned with either apparatus for use in inducing periodic stress and strain in an elongate elastic element or apparatus for driving or extracting an elongate elastic element into or from the ground.
Patent GB-894225-A (GB)
Title: Improvements in and relating to saws
IPC: B23D47/04
Filed: 1961-01-17
Abstract: 894,225. Sawing. GERLACH, H. Jan. 17, 1961, No. 1859/61. Class 145. Sheets 25 are cut to length and edge-trimmed in a machine comprising a chain conveyer 1, a switch 24a actuated by the leading edge of the sheet to stop the conveyer with the sheet in cutting position and set in operation side clamps 10 for aligning the sheets longitudinally, pressure rollers 17 which clamp the sheet on the conveyer and initiate the transverse cuts by the adjustablyspaced saws 20 and means for releasing the pressure rollers and re-starting the conveyer after completion of the cuts so that the sheet is moved past edging saws 21. The conveyer may have cross-strips 3 extending over the whole width of the sheets and a switch 24 is arranged to initiate the feed movement only when spaces between the strips are in the cutting area; also, control cams on the conveyer ensure that it stops only when a space is at an appropriate distance from the switch 24. Alternatively, the cross strips may be omitted and resilient cushions fitted on angle plates on the chains or the strips may extend only between the adjacent inner sides of the chains; these alternative chains can be led downwards and up again over sprockets in the region of the saws 20 and suction slots can be arranged under the saws to withdraw sawdust. Feed rollers 23 operating at the same speed as the conveyer ensure uniform speed. The aligning clamps 10 and rollers 17 can be operated by gearing, cams, cranks or electromagnets but, as shown, hydraulic or pneumatic pistons 5 act on the clamps 10 through levers 4 and pistons 14 act on the rollers 17 through linkages 16, 16a. A valve 19 firstly directs pressure to the cylinders 6 but, when aligning is complete, a pressure switch 18 or a switch 18<SP>1</SP> operated by the lever 4 or a time switch changes-over the valve 19 to direct pressure to the pistons 14 and, when the clamping by the rollers 17 is effected, a switch 24b starts the traverse of the saws 20. The clamps 10 on one side are arranged to lead those on the other side by making the crosssection of the pipes 7 on one side larger or the piston cross-section smaller. The cut sheet runs between a pair of rollers of which the distance apart is variable and is pushed over the end of a bracket support whose rear edge effects alignment of the sheets on a lifting table.
Patent GB-1082176-A (GB)
Title: Static counter with preselection
IPC: H03K23/66
Filed: 1965-01-15
Abstract: 1,082,176. Electronic counters. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Jan. 15, 1965 [Jan. 16, 1964], No. 1893/65. Heading B4A. Each stage of a gated counter of type described in Specification 1,072,553 has a main store S A  and an auxiliary store S H  controlled respectively by a main counting pulse t 1  and an auxiliary counting pulse t 2 , these pulses being out of phase. The counter may have one stage only in operated condition (Fig. 1b, not shown) or may be binary, Fig. 1a. Each store has a number of AND gate inputs and an OR-NOTNOT output, the output arrangement thus providing real and inverted read-outs. An initial value can be set into the main stages by the combination of an f signal with selected marking of leads K 0 -K 3 . The outputs A 0- A 3  may be compared with markings on selected leads (Fig. 7, not shown) to produce a signal at coincidence. This signal may set lead z 2  to 0 to stop the count. Provision is made for repeating the process or for resuming the count and issuing a signal at a further point.