baber/WOPTO huggingface dataset:
Patent GB-700176-A (GB)
Title: Improvements relating to methods of stretching threads and filaments composed of synthetic linear polymers and apparatus therefor
IPC: D02J1/22
Filed: 1950-08-23
Abstract: Threads or filaments of synthetic linear polymers are stretched by passing them under tension at least once round a snubbing member, which may or may not be rotated, in such a way that the position of the draw point is restricted to a fixed zone of limited extent in the path of the threads or filaments round the member.  For this purpose, the latter has a number of spaced peripheral projections, so that the threads or filaments come into contact only with the projections and are spaced from the surface of the snubbing member intermediate the projections.  The member may consist of a cylinder of good heat conducting material into the surface of which are sunk, at spaced intervals around its periphery, a number of pins, e.g. 6 or 10, parallel with the axis of the cylinder, only a sufficient portion of each pin being above the surface of the cylinder periphery to permit a small part of the surface of each pin to come into contact with the thread or filament and exert friction thereon, the thread or filament not contacting the cylinder itself.  The cylinder may be of sufficiently large diameter to enable heating or cooling means, e.g. tubes through which a heating or cooling liquid is passed, to be arranged within it.  The pins may be of abrasion-resistant material such as agate, corundum, hard porcelain, quartz, glass, silver steel or tungsten.  They are preferably of circular cross section but may be elliptical.  The cylinder may be mechanically rotated in the same direction as or the opposite direction to the direction of travel of the thread or filament round the cylinder. The pins may all be of the same diameter or may decrease in diameter in the direction in which the thread or filament travels round the cylinder.  They may be fixed in the cylinder in such a manner that when required they can be turned or longitudinally displaced, so that worn places can be moved out of the path of the thread or filament.  In an example a poly-e -caprolactam yarn is delivered at a speed of 50 metres per minute from a pair of rollers, passed once round a snubbing member 18 mm. in diameter having six equal sized frictional pins and drawn off the member at a speed of 175 metres per minute.  The denier of the yarn is thereby reduced from 105 to 30 with an average deviation of titre of only + 1 per cent.  Specification 543,466 is referred to.
Patent GB-499409-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/00
Filed: 1937-07-29
Abstract: 499,409. Parachutes. HART, R. P. July 29, 1937, No. 20950. [Class 4] A parachute comprises a chamber or chambers attached to or incorporated in the canopy, the chamber or chambers being capable of inflation by the air under pressure contained in the canopy during descent and of remaining inflated after descent. As shown, the canopy C is provided with a chamber A surrounding the air vent D. The chamber has waterproof fabric walls and is in communication with the interior of the canopy by means of one-way valves B which may be flap valves, treated to be impervious to water, or mushroom valves, the spring loading of which is such as to allow them to open under air pressure during the initial period of the descent but to keep them closed during the rest of the descent.
Patent GB-677385-A (GB)
Title: Control of wave length in wave guide and coaxial lines
IPC: H01Q3/44
Filed: 1950-08-25
Abstract: 677,385. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. (Federal Telecommunication Laboratories, Inc.). Aug. 25, 1950, No. 21038/50. Class 39 (i). [Also in Groups XL (b) and XL (c)] A radiating system comprises a transmission line 2 bearing a number of radiator elements 3 and 4, and containing a medium whose dielectric constant can be varied by setting up a controllable electronic charge density therein. This enables the wave length in the line to be maintained constant, even though the frequency of the transmitted waves is changed. As shown, an envelope 9 containing a rare gas, such as krypton or xenon, is inserted in a coaxial line 6 and'a discharged is maintained between electrodes 12 and 13 therein. Part of the output of the line is branched to a frequency discriminator 16, which controls a valve 17 forming a variable resistance in a circuit including electrodes 12 and 13. By arranging a suitable magnitude of the resistance in this. circuit, the arrangement will automatically maintain the wave length in line 6 constant, despite frequency variation of the transmitted energy.
Patent GB-936881-A (GB)
Title: Improvements in and relating to inward radial flow turbines
Inventor: BRIDDLE EDGAR ALFRED
IPC: F01D17/16
Filed: 1961-06-12
Abstract: 936,881. Elastic-fluid turbines. BRITISH SHIP RESEARCH ASSOCIATION. April 3, 1962 [June 12, 1961], No. 21094/61. Class 110 (3). A two-stage reversing inward radial flow turbine has a common operating mechanism for 'two rows of adjustable nozzles associated respectively with the two turbine stages. Each operating mechanism has a drive shaft 21 carrying at one end a gear-wheel 23 engaging a driving ring 24 and at the other end a disc 20. Nozzle sets, comprising the first and second stage nozzles 2 and 8 respectively mounted on shafts 16, are each connected to an operating mechanism by pins 19 engaging radial slots in the discs 20. This allows the vane settings to remain unaffected by differential expansion of the diaphragm 14 and casing 15. The drive for the mechanisms comprises a worm 26 driving a worm-wheel 27 and pinion 29 which engages one of the gear-wheels 23.
Patent GB-709448-A (GB)
Title: Improvements in or relating to smoothing irons
Inventor: WILKINSON GEORGE HENRY
IPC: D06F75/36
Filed: 1951-09-07
Abstract: 709,448. Electric smoothing-irons. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 8, 1952 [Sept. 7, 1951], No. 21121/51. Class 39 (3) [Also in Group VIII] In a smoothing iron of the kind comprising handle and body portions 1, 2 moulded or otherwise formed as a unitary structure which is secured to a sole plate 6, a metal screen 37 is secured within the body portion so as to form an air-spaced partition between the lower and upper regions of the body whereby heating of the handle by convection and/or radiation is reduced. The screen 37 may be a thin sheet of mild steel or aluminium, and preferably has its lower surface made reflective by plating or polishing. It is secured by screws 44, 45 to a shoulder 42 and depending stud 43. Heating of the handle is further reduced by providing slots or apertures in the unitary structure, e.g. as at 46, and further slots (not shown) may be provided beneath thumb rests provided on the handle. Direct heat conduction is reduced by providing a gap 30 between the sole plate 6 and body portion 2. The unitary structure may be moulded from a thermosetting resin such as phenol formaldehyde and is secured to a clamping plate 11 for an electric heating element (not shown) by a stud 31a, spacing collar 33 and nut 31. In addition, a member 34 mounted at the rear of the sole plate is bolted to the rear of the body 2. A removable cover plate 9 encloses electric connections and an indicator lamp 28. Specification 452,562 is referred to.
Patent GB-837497-A (GB)
Title: Air intakes in aircraft engines
Inventor: MORRIS RONALD EDWARD
IPC: F02K9/78
Filed: 1957-07-03
Abstract: 837,497. Jet-propulsion plant. NAPIER & SON Ltd., D. May 28, 1958 [July 3, 1957], No. 21209/57. Class 110 (3). [Also in Groups XXIX and XXXIII] An annular air intake 13, Fig. 1A, for an aircraft engine has has two series of circumferentially spaced flaps arranged in its outer wall to open outwards, the upstream series of flaps 41 being pivoted at their downstream ends and the downstream series 44 at their upstream ends. Hydrogen peroxide is catalytically decomposed in chambers 31, Fig. 1B, to form oxygen-rich steam, and passed to rocket combustion chambers 32 in which paraffin is burnt with some of the oxygen. The combustion gases, still oxygen-rich, drive a turbine 30 and enter an annular combustion chamber 17 together with air taken in through the intake 13 and through the flaps 41. When the flight speed, sensed by pitot orifices 156, 158, Fig. 2, reaches Mach 0.95, an hydraulic servomotor 43 (see Group XXIX), closes the flaps 41. At the same time, the supply of hydrogen peroxide and paraffin to the rocket system is cut off either automatically by means of a Mach meter 34 or manually, and flap valves 36 are opened by means of hydraulic servomotors 38 to allow the air from the intake 13 to pass through a by-pass 35 surrounding the air compressor 15. The engine then operates as a ram jet, and the compressor 15 windmills, a free-wheel 28 allowing it to overrun the stationary turbine 30. Stator blades 39 are adjusted by the servomotors 38 to reduce losses in the compressor during windmilling. During ram-jet operation, the position of a shock wave 182 sensed by means of orifices 150, 152, is stabilized by the flaps 44 which are opened to a varying extent by means of an hydraulic servomotor 47 (see Group XXIX). A bullet 20 is movable by an hydraulic ram 21 controlled by a follow-up servo valve 23.
Patent GB-1420693-A (GB)
Title: Cylinder assembly for hot-rolling of metal wire
IPC: B21B27/02
Filed: 1973-05-04
Abstract: 1420693 Rolling mills UGINE CARBONE 4 May 1973 [4 May 1972] 21267/73 Heading B3M [Also in Division F2] A roller for hot-rolling metal rod or strip comprises a first ring 5, 27 of sintered metal (e.g. a WC-Co alloy with 85% by weight of WC) mounted with a small clearance (e.g. 0À02 mm.) on a second ring 6, 22 (e.g. of a WC-Co-alloy with 75% WC) having a similar co-efficient of thermal expansion to the first ring, the second ring being mounted in an undercut circumferential groove in a support shaft so that the overhanging lips 7, 8, 25, 30 of the grooves clamp the second ring radially at all working temperatures, there being a clearance radially inwardly of the second ring. The support shaft may comprise either two parts 42, connected to a shrink fit with nuts 3, 4 of stainless steel to clamp the first ring, or a sleeve 21 with a tapered bore and on which the second ring and a ring 28 to clamp the first ring, are bolted by bolts 24, 29, the bolts 24 passing through stainless steel sleeves 23 to increase the bolt tension with increasing temperature.
Patent GB-668876-A (GB)
Title: Improvements in or relating to the manufacture of inflatable conduit cores
IPC: B29D23/00
Filed: 1949-08-16
Abstract: 668,876. Flexible conduit cores. DUCTUBE CO., Ltd. Aug. 16, 1949, No. 21323/49. Class 99 (ii). [Also in Group V] A cord sheath 3 is braided over an uncured or tacky rubber layer.2 applied on a mandrel 1 of selected size, and the sheath is wetted by a layer of rubber cement over which is applied an outer rubber sheath 4 that may be in the form of a helically-wound strip. The core, which may have a removable wrapping of canvas or the like, is steam cured and removed from the mandrel, and a closure is secured at one end and a valve at the other end of the core The sheath strands may be at an angle of at least 42 degrees to the axis of the core when inflated, the angle changing upon deflation so that the core in twisting is freed from a surrounding mass of concrete.
Patent GB-1281620-A (GB)
Title: Umbrella handle
Inventor: ZIMMERMANN R
IPC: A45B25/00
Filed: 1970-05-04
Abstract: 1281620 Umbrella handles W BAUERMANN & SÍHNE GmbH 4 May 1970 [6 May 1969] 21351/70 Heading A4P An umbrella handle has a plastics body portion 11, Fig.6 secured to a separately fabricated cap 17 by means of projections 14 on the body periphery which engage or snap under an inwardly directed bead 18 on the resiliently deformable cap 17. A lug 15 maybe provided to attach a strap and may form one of the projections. Alternatively a strap 23, Fig. 8 may pass through holes in the cap and be secured in a hole 21 in the body portion by a pin 24. The body portion 13 may be set in between the projections 14 to allow the cap to deform during fitting. The cap is preferably metal. The body portion may be hollow as shown to receive the end of the umbrella stick or may have a stud to engage a hole in the stick. The stick may alternatively be attached by a nut (34), Fig. 9 (not shown). The handle may be of circular or oblong plan shape. The lug for attaching a strap may alternatively be attached to the cap or may have hook shaped resilient bifurcations adapted to be pushed through a hole in the cap and anchored in a recess in the body.
Patent GB-144929-A (GB)
Title: Improvements in and connected with cotton waste willows or the like openers
IPC: D01G23/08
Filed: 1919-09-01
Abstract: 144,929. Field, F., and Field, H. Sept. 1, 1919. Feeding openers &c.-Cotton waste from the bale is placed in a hopper e and is passed therefrom by a fan g through pipes f, i, k, l into receiving-chambers c situated on a floor above the willows or waste openers d to be fed. It is transferred from these chambers by hand to holes o in the floor of the room, which lead to shoots p situated above the feed lattices q of the willows &c. d. The pipe f is provided with a trunk h into which heavy matter can fall. The pipes k, l leading to the chambers c are provided with valves n to direct the flow of the material into either chamber. The chambers are provided with doors to facilitate the extraction of the material. A number of rollers r are placed at the inner end of the feed lattice q to ensure an even feed of the material.
Patent GB-393787-A (GB)
Title: Improvements in and relating to pistons
IPC: F16J15/48
Filed: 1932-07-29
Abstract: 393,787. Piston packing. MICHELIN ET CIE, Clermont Ferrand, Puy de Dome, France. July 29, 1932, No. 21468. Convention date, Aug. 8, 1931. [Class 122 (i).] A piston or piston valve is packed by a metal sleeve C secured at its ends to the piston and expanded by the pressure of the working fluid which has access to a groove B in the piston through passages D.
Patent GB-1264367-A (GB)
IPC: C07D207/323
Filed: 1969-04-28
Abstract: 1,264,367. 4 - [p - (1 - Pyrryl) phenyl] butyric and 3 - [p - (1 - pyrryl) benzoyl] propionic acids. J. R. GEIGY A.G. 28 April, 1969 [29 April, 1968; 20 Nov., 1968], No. 21523/69. Heading C2C. The invention comprises compounds of formula wherein Z is CH 2  or CO and R 1  is H, F or Cl, and their pharmaceutically acceptable salts. These compounds may be prepared by (1) reacting succinaldehyde or its derivative with a p-aminophenylbutyric or p-aminobenzoylpropionic acid; (2) decarboxylating the corresponding malonic acid; (3) hydrolysing the corresponding nitrile, alkyl ester or imido-ether; (4) reacting an alkyl 2 - acetyl - 4 - [p - (1 - pyrryl) phenyl] butyrate with alkali metal hydroxide (for Z = CH 2 ); (5) reducing the compound where Z = CO to that where Z = CH 2 . Details are given for the preparation of the following starting materials and intermediates: 4 - (4 - acetamino - 3 - chlorophenyl) butyric acid; ethyl 3-(p-aminophenyl) propionate; RCO 2 Et, RCH 2 OH, RCH 2 Cl, RCH 2 OTs-(p), RCH(CO 2 Et) 2  and BCH(CO 2 H) 2  [where R = p - (1 - pyrryl) phenethyl]; and R<SP>1</SP>CH(CO 2 Et) 2 , R<SP>1</SP>CH(CO 2 H) 2  and R<SP>1</SP>CH 2 CO 2 Et [where R<SP>1</SP>= 3 - chloro - 4 - (1 - pyrryl) phenethyl]. Also prepared is the 2,4-dinitrophenylhydrazone of 3-[p-(1-pyrryl) benzoyl] propionic acid. Therapeutic compositions for oral, rectal, local or parenteral administration comprise compounds of the above general formula, which have analgesic, antiphlogistic and antipyretic activity.
Patent GB-759650-A (GB)
Title: Wiring tool for interconnecting electrical terminals
IPC: H01R43/033
Filed: 1954-07-23
Abstract: 759,650. Stripping conductors. WESTERN ELECTRIC CO., Inc. July 23, 1954 [July 24, 1953], No. 21563/54. Class 36. [Also in Group XXII] A wiring tool for interconnecting terminals is adapted, when the tool is applied to the first of two spaced terminals, to strip the end of a length of insulated wire inserted into the tool from a supply of such wire and wrap this end around the terminal, and, when the tool has been drawn along the length of insulated wire and applied to the second terminal, to cut off the length of insulated wire from the supply thereof, strip the end of such length and wrap the end around the second terminal. The tool includes, Fig. 6, a housing 10, with a motor 11 mounted on its rear wall driving, through gearing 100, 101, 84, 82 and 81, a cam-shaft 80. A wire feedtube 50 and a sleeve 20 are reciprocated in the housing 10 by cam-operated levers 52 and 22 respectively, a stripper rod 31 is reciprocated in a groove 25 of the sleeve 20 by a cam-operated lever 32, and a pivoted wire cutting and gripper blade 62, Fig. 22, of cutter clamp 60 mounted above the groove 25 in the sleeve 20, is actuated by a cam-operated lever 67 (not shown) through linkage 66, 65, 64. A spindle 40, rotatable and slidable in the sleeve 20 and formed with a wiring head 42, is rotated from the gear 101 through a clutch 90 under control of a camactuated lever 95. In operation, the tool, with the wire guide 50 and stripper 30 forward, Fig. 12, sleeve 20 retracted, cutter blade 62 open and insulated wire 160 laid in a notch 44 in the wiring-head 42 and between the jaws of the stripper 30, is applied to a terminal A so that the terminal is received in a recess 43 in the head 42 and the motor 11 switched on. The sleeve 20 then moves forward to close the jaws of the stripper 30, the stripper 30 is then withdrawn to strip the insulation from the end of the wire, the head 42 is rotated to wrap the stripped wire end around the terminal A, the sleeve 20 is then moved back and the stripper 30 forward and the motor 11 is then switched off. The tool is then applied to the terminal B, the wire 160 being paid out through the feed tube 50. The motor 11 is then switched on and feed tube 50 retracted, Fig. 17, so that a spring finger 70 presses the wire in the winding head notch 44 and between the jaws of the stripper and a spring finger 75 presses the wire in the cutterclamp means 60. The blade 62 then closes to cut the wire 160 and clamp the supply end, the sleeve 20 moves forward to close the jaws of the stripper 30, the stripper 30 then moves back to strip the insulation from the end of the wire. The head 42 is then rotated to wrap the end about the terminal B. The feed tube 50 then moves forward, the stripper 30 moves forward, the sleeve 20 back, the blade 62 opens to release the supply end of the wire and the motor 11 is switched off. The tool is now in the state shown in Fig. 12 ready for a new cycle of operation. Specifications 674,709, 716,526 and 759,651, [Group XXII], are referred to.
Patent GB-697704-A (GB)
Title: Improvements in sheet delivery mechanism of stop-cylinder printing machines
IPC: B65H29/08
Filed: 1951-09-14
Abstract: 697,704. Sheet-delivery apparatus. LAKEMAN, A. H. Sept. 14, 1951, No. 21671/51. Class 100(i) [Also in Group XXIV] In a sheet-delivery mechanism of a stop-cylinder printing machine of the kind in which an oscillatory sucker-bar has suction fingers for engagement with a printed sheet to initiate its removal from the impression cylinder and present the sheet to mechanical grippers of a delivery conveyer which conveys the sheet to a piling table, the sucker-bar has oscillating means which arrest the sucker-bar in the required position for engaging the tail end of the printed sheet on the impression cylinder. As shown, the sucker-bar 13 is mounted for oscillation about its own axis on a lever 12 mounted to oscillate about the axis of the impression cylinder 8. The sucker-bar is rocked about its axis 13 by a roller 15 and a rotary cam 16 fixed to a gear wheel 9, the roller 15 being held in engagement with the cam 16 by a spring 19. A cam 33 secured to a crown wheel 28 is freely mounted on a shaft 1 by a bush 29, the crown wheel 28 being driven by pinions 27 of a freely rotatable carrier 26. The pinions 27 are driven by a crown wheel 20 secured to a sprocket 4 adjustably secured to the shaft 1 by a plate 24 and screw 25 which force the wheel 20 against a collar 23 fixed to the shaft 1. The cam 33 co-operates with a roller 35 on a pivoted lever 34, which through a link 37, oscillates a lever 38 engaging the lever 12, about a shaft 59 co-axial with the impression cylinder shaft. The carrier 26 has a radial arm 66 oscillated by a cam 40, roller 46, and rod 39, the cam 40 being timed and formed such that when the suckerbar is-about to engage the tail end of a sheet on the impression cylinder, the cam'33, and thus the lever 38, are stationary. Specifications 582,102 and 697,703 are referred to.
Patent GB-1219826-A (GB)
Title: Fuel injection valves for internal combustion engines
IPC: F02M61/16
Filed: 1968-05-08
Abstract: 1,219,826. I.C. engine fuel injectors. CATERPILLAR TRACTOR CO. May 8, 1968 [June 20, 1967], No.21783/68. Heading F1B. The inner end of a valve element 68 is engageable with a seat 76 at the inner end of a valve chamber 48 and the greatest diameter peripheral surface 78 of the element has diagonal grooves 80. The chamber 48 has a cylindrical wall portion 60 adjacent to the seat 76 and a cylindrical wall portion 62 of greater diameter further outwardly from the seat. In the partially-open position of the element 68 the wall portion 60 directs fuel into the grooves 80 to provide a wide spray pattern A of fine fuel droplets and in the more fully-open position fuel may by-pass the grooves to provide a narrower spray pattern B of larger fuel droplets. Fuel is supplied to the chamber 48 through a fuel line engaging nut 92 locating a filter screen 94. The injector sprays into a pre-combustion chamber 20 with a starting glow plug 36.
Patent GB-614715-A (GB)
Title: Improvements in or relating to negative holders for photographic enlarging apparatus
IPC: G03B27/62
Filed: 1946-07-22
Abstract: 614,715. Photographic enlarging apparatus. GOSS, H. W. July 22, 1946, No. 21784. [Class 98 (i)] The frame of a negative carrier in an enlarger has a plate with a window opening rectilinearly movable facewise by spring means to press the margins of the negative against the frame. In one form, particularly for strip film, plates 3, 4 shaped as minor segments are fastened to an annular plate 1 with their chordal edges parallel. The straight edges have rabbets 6, 7 co-operating with the plate 1 to form guides for a film strip and to hold a metal strip having a straight portion 9 with a rectangular window 11 for framing the negative and curved ends 10. The portion 9 has pins 13, 14, each having a frusto-conical cam portion 15 and a prolongation 16 extending into recesses 17 in the plate 1. A U-shaped spring 21 lying in grooves 18, 19, 20 formed in the segments 3, 4 and closed by the plate 1 is tensioned outwards to bear against the cam surfaces 15 and push the strip 9 against the rabbets in the segments 3, 4, clamping the film strip marginally. When the ends of th ring 21 are pressed inwards, the strip drops to release the film. Part of the strip 9 may be channelled. According to the Provisional Specification, the spring 21 and the pins 13, 14 may be replaced by a pair of wires bent in their mid-portions to form cranks. The projecting ends have cross-pieces, two legs being connected by a spring to turn the wires about their longitudinal axes so that the cranks press the strip 9 against the rabbets 6, 7, the other two legs forming finger grips to turn the wires in the opposite direction to release the film.
Patent GB-1073429-A (GB)
Title: Composite marine dock bumper
IPC: E02B3/26
Filed: 1966-05-17
Abstract: 1,073,429. Dock fenders. DURABLE MATCO. May 17, 1966 [May 19, 1965], No. 21810/60. Heading B7S. A marine dock fender or bumper comprises first and second sections (V and H, Fig. 1, not shown) each including stacked resilient strips (1,5) with means spaced from the strip edges and extending through said strips for binding them together, and means securing together the two sections with strip edges in adjacent crossing relationship. In the embodiment described the strips (1) of one section (V) are vertical and those (5) of the other (H) are horizontal, the two sections being secured to the dock wall (D) by plates (2, 9) fillet welded thereto.