baber/WOPTO huggingface dataset:
Patent GB-1435379-A (GB)
Title: Extruders
IPC: B29C48/52
Filed: 1973-06-14
Abstract: 1435379 Shearing extruder USM CORP 14 June 1973 [15 June 1972] 28274/73 Heading B5A [Also in Division B1] An extruder which delivers rubber or plastics material into the nip 36 of sheet calendering rolls 32, comprises feed 40, compression 45, mixing 50, shear 70, and discharge 60, sections throughout which extends a helical flight 18 of a screw 16. In the feed section 40, the flight slices-off material from a mass from hopper 22. In the compression section 45, the volume of channel 19 between flight 18 progressively reduce in a tapering section 46 of the bore of extruder barrel 12 or, alternatively, the extruder bore may be constant with the volume of channel 19 reduced by changing pitch of the flight 18. One, or more, secondary screw flights 55 of similar or different pitch, commences in the compression section 45, and extends through the mixing section 50 and is of greater pitch and clearance from the barrel wall 52 than the flight 18, to define with the flight 18 downstream and upstream portions of the channel 19 respectively of progressively decreasing and increasing volume, in which the material is subject to some low intensity mixing shear and turbulence in being progressively forced over the flight 55 from the decreasing volume downstream position into the increasing volume upstream portion of channel 19. The mixing effect is enhanced by the contour of flight 55 being more rounded than that of flight 18. The material is subjected to a more intensive shear action in the shear section 70 defined between the barrel bore 73 and the cylindrical land 72 of a screw collar 71, which is detachably secured to the screw and along which the flight 18 may extend. For variation of the shear effect obtained by the diameter and axial extent of the land 72, the collar 71 is detachably mounted on the screw 16 as a pair of semiannular rings fixed by screws 74. The replacement is effected by the portion 61 of the barrel, defining the discharge section 60, being detectably secured to the upstream barrel portion 59 by bolts 62, and slidable along the screw away from the portion 59 upon supporting ways or guides. In the Fig. 3 embodiment (not shown) the feed and compression sections of the barrel bore are provided with axially, or helically extending grooves. The dimensions of the various sections are specified.
Patent GB-1374168-A (GB)
Title: Source-holders and their manufacture
IPC: G21G4/06
Filed: 1972-06-16
Abstract: 1374168 Brazing OOMMISSZRIAT A L' ENERGIE ATOMIQUE 16 June 1972 [18 June 1971] 28308/72 Heading B3R [Also in Divisions B4 and G1] A radioactive source-holder, e.g. an alphasource-holder, comprises a cover 11, a body 13 and a membrane 15, all of stainless steel, the membrane 15 which has a thickness of approx. 6 microns extending across aligned openings 17, 19 in the cover 11 and the body 13, respectively, the latter having annular lips 21, 23, respectively, between which the membrane 15 is clamped, the membrane 15 being brazed to portions of the cover 11 and the body 13 situated outwardly of the lips. Fusible packings 29, 31 consisting for example, of rings cut out of a sheet of eutectic alloy of 72% Ag and 28% Cu (mp. 779‹ C.) are placed before brazing in annular grooves 25, 27 in the cover 11 and the body 13, respectively. Some ten source-holders 9 are then stacked together with intermediate and end spacer units 39, 41 and 43, which serve to increase the thermal inertia of the membranes and prevent adjacent source-holders from fusing together, between the checkplates 35, 37 of a clamp formed of a material, e.g. molybdenum, having a coefficient of thermal expansion lower than that of the source-holders. Brazing is carried out under a vacuum of 10<SP>-4</SP> Pascal with a rate of rise and fall of temperature of 15‹ C./ minute and a brazing stage of 15 mins., the complete thermal brazing cycle being from 4 to 5 hours. Finally, the external diameter of the source-holders is machined to the line 33, and the source-holders are then checked forgastightness under helium test in a device such as that of Fig. 8 (not shown).
Patent GB-267434-A (GB)
Title: An improved billiard-cue tip
IPC: A63D15/12
Filed: 1926-11-12
Abstract: 267,434. Guthrie, T. W., and Guthrie, C. Nov. 12, 1926. Billiards, cues for.-The tip 1 of a billiard cue is attached to the cue 8 by means of two tubes 4, 5 that are adapted to fit one within the other and are both inwardly flanged to engage the tip. The inner tube 4 fits over the reduced end 7 of the cue and is held in place by the outer tube 5 which is internally threaded to engage a screw 6 fixed to the cue. A leather washer 2 and a felt washer 3 are disposed between the tip and the end of the cue.
Patent GB-364539-A (GB)
Title: Improvements in or relating to liquid measuring apparatus
IPC: B67D7/08
Filed: 1930-09-23
Abstract: 364,539. Liquid meters. KENT, Ltd., G., 199, High Holborn, London, and HANDFORD, R. E., Biscot Road Works, Luton. Sept. 23, 1930, No. 28499. [Classes 69 (i) and 135.] In apparatus for delivering measured quantities of liquids a cut-off device biased to move' to its cut-off position is retained in its non- cut-off position by two detents controlled by a liquid meter one of which is rendered inoperative just before the required quantity of liquid has been delivered while the other is rendered inoperative when the exact quantity has been delivered. The first detent is preset for the required number of units and the other detent is operated once for each unit. The cock 1 for cutting off the supply of liquid is controlled by a lever 2 pivoted at 3 and engaged at its hardened end 4 by two detents 5, 6 when the lever is moved to open the cock. Adjustable tappets 8, 9 on the detents engage .cams 10, 11 driven by a spindle 14 and skew gears 12, 13 from a liquid meter such as is shown in Specification 213,061, [Class 110 (ii), Rotary engines &c.]. The cam 10 makes one revolution for each half-gallon delivered and drives through reduction gearing 15, 16 a sleeve 21 carrying a ratchet wheel 18, which rotates once for forty revolutions of the cam 10. Engaging the ratchet wheel is a pawl 19 on an arm 20 fixed to a spindle 17 which carries the cam 11 and a presetting pointer 22 operated by a handle 24 and moving over a scale 23. The pointer 22 is returned to zero as the liquid is delivered, the number of halfgallons delivered being determined by the number of ratchet teeth slipped over when presetting the pointer. The spindle 14 also drives through worm and worm wheel 25, 26 and a slipping clutch a shaft 27 carrying pointers 29 moving over dials 30. These pointers are zeroized by a shaft 31 operated by a handle 32 and driving the shaft 27 through skew gears 33, 34 and a slipping clutch. Movement of the pointers 29 past the zero position is prevented by a spring 29<1>. The spindle 17 has a projection 37 abutting a disc 38 on the spindle 27 to prevent the spindle 17 being turned until the pointers 29 have been zeroized, when a cut-away portion on the disc 38 registers with the projection. A lug 40 on the operating lever 2 abuts a detent lever 41 pivoted at 7 and urged by a spring 42 into a recess in a disc 43 secured to the spindle 17, the recess registering with the detent 41 to lock the operating lever 2 when the presetting pointer 22 is in its zero position. The gearing between the meter shaft 45 and the spindle 14 may be variable.. To prevent lost motion between the pawl 19 and the ratchet wheel 18 a blade spring 59, Fig. 12, on the arm 20 abuts a spring 60 in an annular recess 61 in the ratchet wheel so that the pawl is forced into engagement with a tooth on release of the handle 24. A counter 48 is driven from the meter shaft 45.
Patent GB-476202-A (GB)
Title: Improvements in safety catches for pin stems and the like
IPC: A44B9/18
Filed: 1936-10-20
Abstract: 476,202. Making safety-pins. WELLS MANUFACTURING CO. Oct. 20, 1936, No. 28546. Convention date, Nov. 7, 1935. [Classes 83 (ii) and 83 (iv)] [Also in Group VII] Soldering.-A retaining catch for pin stems and the like comprises a slotted keeper 7 having a cam portion 18 extending into the pin slot of the keeper support 14-15 so that insertion of the pin 16 causes the hook end 20 of the keeper to be moved round to close the entrance. A further rotary movement may be imparted to the keeper by means of a thumb piece 21 to lock the stem in the catch. On reversal of the keeper the cam portion 18 ejects the pin. The keeper and hinge supports. which are formed by folding a strip of metal upon itself to form flanges 5 and 9, are secured to the base member by soldering. U.S.A. Specification 1,980,124 is referred to. In the Specification as open to inspection under Sect. 91, the keeper support is formed, during the pressing operation by a tool 46, with a cupped bottom portion 47, Figs. IX and XII (both Cancelled), to which solder 49 is applied by an electrical heating unit. This subject-matter does not appear in the Specification as accepted.
Patent GB-269431-A (GB)
Title: Improvements in umbrellas, parasols and the like
IPC: A45B7/00
Filed: 1926-11-16
Abstract: 269,431. Cobon, J. L. Nov. 16, 1926. Sticks.-In an umbrella &c. having a stick with jointed sections to enable the umbrella to be held centrally over the head, the middle section 3 is furnished with spring-influenced plungers 13 having flat surfaces and projections 15 engaging mating flats and depressions on the outer stick sections 1, 2, the plungers being operated by trigger portions 14 riding in bayonet slots in the wall of the section 3. In a modification the plungers are longer and have inwardly projecting tongues adapted to enter slots in a central ring if the latter is rotated to a suitable position. In any other position of the ring the plungers are locked and the. stick sections are held in either their straight or cranked positions.
Patent GB-1082014-A (GB)
Title: Improvements in or relating to pumps
IPC: F04B15/02
Filed: 1964-07-14
Abstract: 1,082,014. Filter for pump inlet. W. BOETTNER and P. BOETTNER. July 14, 1964, No. 28982/64. Heading B1D. [Also in Division Fl] A grating 12 for attachment to the inlet end of a liquid pump (see Division Fl) comprises a series of alternate long and short prongs 26 and the long prongs define a central circular passageway 27.
Patent GB-384745-A (GB)
Title: Improvements in reciprocating internal combustion or other fluid pressure engines or pumps having pistons which also oscillate or rotate
IPC: F01B9/02
Filed: 1931-10-19
Abstract: 384,745. Four-stroke engines ; pumps. RIGOTTI, F., 132, Stamford Street, London. Oct. 19, 1931, No. 29017. [Class 7 (ii).] In an engine or pump wherein the piston rotates relatively to the cylinder during its reciprocation therein the ports 38 are formed in sliding blocks 36 which occupy a large surface and bear on the piston to prevent leakage around the ports ; alternatively the piston may have surfaces pressed outwardly into contact with the cylinder for the same purpose. As applied to a four-stroke-cycle engine the piston is connected to the rod 15 by a universal joint 26 the rod being turned by worm gear 12, 17 from the crank-pin. The piston has two grooves 34 which register with two sets of inlet and exhaust ports 38 ; the worm gear makes the piston turn once for every eight strokes. In a modification the connecting-rod is built up of a sleeve 54 driven by worm and pinion gear 12, 17 and 53, 53<1>, and a control rod 59 for taking the thrust. The fuel and lubricant pumps may be actuated by the varying pressure within the cylinder influencing a spring-pressed piston connected to the pump plunger.
Patent GB-1397771-A (GB)
Title: Manufacture of moulds for the production of moulded pile materials
IPC: B29C33/38
Filed: 1972-06-21
Abstract: 1397771 Moulded pile fabric BRUNSWICK CORP 21 June 1972 [5 Jan 1972] 29106/72 Heading B3A [Also in Divisions B5 and D1] A process of making a mould for moulding pile fabric, e.g. an automobile carpet, comprises sintering together metal tubes having copper cores and then removing the copper cores to leave cavities for the pile. The metal tubes may be of stainless steel and sizes and densities of tubes are given. The tubes may be of cross-sectional shapes other than circular and the cores may be removed by electroless or nitric acid.
Patent GB-507726-A (GB)
Title: Improvements in and relating to machines for making bags from tube lengths
IPC: B31B160/10
Filed: 1938-10-07
Abstract: 507,726. Making bags. RAWE, M. Oct. 7, 1938, No. 29175. Convention date, Oct. 7, 1937. [Class 94 (ii)] Bag tubes continuously fed transversely, are creased by wheels a, b, the bottom-forming portion being turned downwardly by a plough d. A pair of spring-biassed articulated arms m, carried by diverging drains n, enter the tube bottoms, partly opened by spring-biassed prongs on faster moving discs e, and, during feed, automatically open to spread same, the bottoms being rolled out at q, gummed at s, t, v and single or multi-ply valve tubes are applied at 2, 3. The valve tubes are partly severed from stock at x, separated off by quickly-moving rollers at z and fed by a needle-roller 2 to the open and gummed bag bottoms, being packed thereagainst by roller 3. Creasing rollers 4 define the side flaps.
Patent GB-981413-A (GB)
Title: Improvements in bearing lubrication systems for fluid-flow engines
Inventor: KOFINK SIEGFRIED
IPC: F01D25/16
Filed: 1964-06-30
Abstract: 981,413. Lubricating systems. W. EBERSPACHER, and H. EBERSPACHER, [trading as J. EBERSPACHER]. June 30, 1964, No. 39237/60. Heading F2A. An exhaust-gas supercharger comprises a casing 3, connecting the turbine housing 1 and the compressor housing 2, and a shaft 4 carrying the turbine and compressor rotors. Bearings 3c, 3d are free floating with respect to the shaft and casing 3, and are bounded by spring washers 3e. An oil feed pipe 5 mounted in the lubricating system of the engine to be supercharged, supplies oil through an oil baffle 8 to a chamber 5a, from whence it passes through the clearance in the bearings to a sump 5b. A pipe 5c, which is normally sealed by an adjustable ball valve 6, supplies oil to a pipe 7, when a predetermined lubricating pressure is reached, and the oil flows on to the shaft to cool the latter before falling into the sump.
Patent GB-179504-A (GB)
Title: Needle guard for sewing machines
IPC: D05B55/06
Filed: 1921-11-03
Abstract: 179,504. Singer Manufacturing Co., (Assignees of Ringe, J. C.). April 80, 1921, [Convention date]. Sewing-machines; needle guides; needdes vibrating laterally.-In hem-stitching and like machines a needle-guide is provided the movements of which are so timed relatively to the lateral movements of the needle in the work that the constant position of the needle relative to the loop-taker at the moment when the latter engages the loop is ensured. The guide 49 is mounted on a stud 51 eccentrically journaled in a lug 52 and secured therein in adjusted position by a set-screw. The lower end of the guide 49 is connected by a pitman 56 and straps 57 to an eccentric 58 on the shaft 46 of the loop-taker 47. The guide is arranged so as to allow a certain clearance to the needle 17 as the latter enters the work, Fig. 4, but subsequently the lateral movement of the guide is greater than that of the needle to the extent that the guide is in a position to support the needle when in the looptaking position on the up-stroke to prevent deflexion and misplacement of the loop. In the machine shown, the needle is vibrated laterally by mechanism of known type comprising mechanism 20, 21, 22, 27, 28, 31.
Patent GB-171985-A (GB)
Title: Improvements in and connected with apparatus for testing the position of the centre of gravity of rapidly rotating parts of machinery
Filed: 1921-11-03
Abstract: 171,985. Krupp Akt.-Ges., F. Nov. 22, 1920, [Convention date]. Testing balance of rotary apparatus. - The body E to be balanced is mounted on a sleeve D which is itself mounted bv ball bearings C on a carrier A comprising a shaft the ends of which are cut awav to form knife-edges a<1>, a<2>, the plane of which passes as near as possible to the axis of the carrier. The latter is supported on V-blocks b<1>, b<2> in a frame B. A pointer (not shown) on the carrier moves over a scale on the frame B. The body E is rocked until the pointer shows no deflexion, the unbalanced mass being then vertically below the knife-edges. A compensating-mass is applied diametrically opposite in the well-known manner.
Patent GB-1040144-A (GB)
Title: Improved means for hanging curtains
Inventor: WYLDE JOSEPH ROWLAND
IPC: A47H13/00
Filed: 1963-07-24
Abstract: 1,040,144. Suspending curtains. SELECTUS Ltd. July 14, 1964 [July 24, 1963], No. 29287/63. Heading A4B. A curtain is secured to runners on a rail by means of a tape of the hooked pile fabric kind, a first tape 1 with hooks 3 having spaced holes 5 or loops to receive curtain hooks and a second tape 2 having loops 4 to be engaged by the hooks 3 being secured to the curtain.
Patent GB-1337655-A (GB)
Title: Decoding system for a television receiver
IPC: H04N9/44
Filed: 1971-06-22
Abstract: 1337655 Colour television SONY CORP 22 June 1971 [17 Oct 1970 17 Nov 1970] 29312/71 Heading H4F A decoder for PAL colour television signals utilizes only every second line of chrominance information by use of a one line delay line 2 and switch 4 operated at the end of each line period. As a result all the signals fed to the demodulators 7 and 8 have the same modulation axes, demodulator 8 being fed with a sub-carrier frequency reference signal of B-Y phase, and demodulator 7 being fed with a reference signal coinciding in phase with the burst signals from switch 6 gated out by gate 10. The resulting demodulated signals are matrixed at 18 with the luminance component applied at 19 to produce red, green and blue component signals. The B-Y reference signal is produced by averaging the burst phases in the incoming signal to give a signal of -(B-Y) phase which is inverted at 17. In an alternative embodiment the delay 2 is provided after the switch 4, the switch passing every second line and burst gate 10 and each demodulator being connected to the switch output directly and via the delay line. Alternatively, switch 4 may be replaced by a diode witch (22, Fig. 7, not shown) which has two outputs one producing chrominance signals with positive B-Y and R-Y modulation axes and the other signals having positive B-Y and negative R-Y modulation axes. Burst gate 10 and demodulator 7 are then fed from one of these outputs and demodulator 8 from the other output. In a further embodiment the chrominance signals are demodulated along the R-Y and B-Y axes by adding the outputs from continuous wave generators 11 and 15 in the correct proportions to give a signal along the R-Y axis, which is then used to control the oscillator 12. Delay line 2 may have a delay of an odd multiple of one line period.
Patent GB-1476123-A (GB)
Title: Method of manufacturing a section by extrusion
IPC: B21C35/04
Filed: 1974-07-02
Abstract: 1476123 Extruding MANNESMANNROHREN WERKE AG 2 July 1974 [17 Aug 1973] 29364/74 Heading B3P A method of extruding a section in an extrusion press comprising a container, a die and a ram, from a billet coated with a lubricant includes inserting a moulded mica disc, the mica having had at least 90% of its water of crystallization removed, between the billet and ram, extruding the billet so that a residue of the disc remains at the die after completion of each extrusion operation, the residue being completely pressed out by the next billet as it is extruded and the parts of the press coated with lubricant being cleaned by the mica disc. The mica can have at most 10-15% metal salts mixed with it and the disc is shaped to scrape lubricant, e.g. glass from the wall of the container and the die and also the mandrel when used.
Patent GB-192763-A (GB)
Title: Improvements in or relating to lathes or the like
IPC: B23Q35/10
Filed: 1921-11-07
Abstract: 192,763. Richardson, F. A. Nov. 7, 1921. Lathes.-Copying mechanism for lathes which may be arranged to give an alarm, comprises a bracket 15 secured to the tail-stock and carrying the part 25 to be copied. A bracket 18 secured to the tool-slide carries a finger 20 which is adjusted so that, when the work has been reduced to the desired diameter, it makes contact with the pattern. When the pattern is a metal one, it may be arranged in an electrical circuit so that when the finger 20 touches it an audible or visible signal is given, as shown in Fig. 2.
Patent GB-1185746-A (GB)
Title: Lock Device
Inventor: NIILOLA ARMAS KALORVO
IPC: E05B67/36
Filed: 1968-06-21
Abstract: 1,185,746. Locks. A. K. NIILOLA. 21 June, 1968 [22 June, 1967], No. 29639/68. Heading E2A. A lock adapted to be removable from operative position, in which it locks two brackets 1, 2 together, in the manner of a padlock, consists of a cylindrical lock case 3, having a reduced-diameter portion 4 adapted to pass through aligned openings in the brackets 1, 2, and a locking arrangement consisting of a plug 7 which is rotatable within the lock case upon the insertion of a key through opening 11 into engagement with key-operated mechanism, e.g. a revolving barrel lock (not shown), and a ball or other locking piece 10 which is trapped between a conical transverse bore 6 in the case and a cam groove formed in the plug, whereby upon rotation of the plug the ball is moved radially outwardly to prevent withdrawal of the lock case. Brackets 1, 2 may be respectively fitted to a door and a door post. The arrangement may be modified (Fig. 4, not shown) to make it more weatherproof, by fitting a cylindrical cup member (19) in an enlarged opening in one of the brackets, the cup member having an internal annular groove (20) with which the ball (10) co-operates in its locking position. In this modification, the brackets are composite, consisting of pairs of plates (12, 13, 14, 15), to provide further weatherproofing.