baber/WOPTO huggingface dataset:
Patent GB-603526-A (GB)
Title: Improvements in or relating to hair curlers
IPC: A45D2/24
Filed: 1945-10-23
Abstract: 603,526. Hair-curling appliances. KIASCHEK, G. Oct. 23, 1945, No. 27905. [Class 131] A hair curler comprises a frame with side limbs 11, 12 and with shoulders 1<4>, 15 formed at one end, a twolimbed hair gripping member 2 hinged at 2<1> to the other end 13 of the frame and an open-end retaining cap 3 slidably mounted at the shouldered end of the frame and provided with recesses 31, 3<2> with which the shoulders of the frame engage by spring latch action when the cap is slidden over the free ends of the gripping member to lock the latter in position between the frame members. The frame members are gapped at the shouldered end of the frame so that finger pressure on the members 1<1>, 1<2> can release the shoulders 1<4>, 1<5> from the recesses 3<1>, 3<2>. The internal corners of the cap 3 are flared at 5 to facilitate engagement of the cap with the ends of the hair gripping member. In modifications the frame members may or may not be joined at the shouldered end of the frame and the sliding cap is made as a spring clip.
Patent GB-1157486-A (GB)
Title: Material Handling Machine.
IPC: E02F3/32
Filed: 1966-11-25
Abstract: 1,157,486. Shovelling machines. WARNER & SWASEY CO. 25 Nov., 1966 [4 April, 1966], No. 52801/66. Heading E1F. In a material-handling machine, e.g. a back hoe shovel excavator, a dipper stick - carrying boom can be swung vertically either at a high speed through a relatively large angular displacement by a low torque or at a slow speed through a smaller angular displacement by a greater torque by a hydraulic ram according to the powered positioning of the positioning of the pivot axis 32 of the ram 15 on the boom-supporting structure 12 of the machine. The ram cylinder 28 is pivotally connected at 32 to a block 35 pivotable by a ram 30 about an axis 36 on the structure 12. Specifications 1157487 and 1157488 are referred to.
Patent GB-151850-A (GB)
Title: Improvements in and connected with portable devices for removing pulleys, wheels, couplings, cams, and the like from their shafts
IPC: B25B27/02
Filed: 1919-11-12
Abstract: 151,850. Leonard, W. J. Nov. 12, 1919. Wheel-removing and like tools.-A device for removing pulleys, wheels, couplings, cams, &c. from shafts comprises a cross-member a of box form open at top and bottom and provided with notches d to receive pins i on chains or other connexions g which engage diametrically opposite points on the pulley &c. f. End recesses e in the enlarged extremities of the member a are provided for the passage of the pins i. The pulley &c. is removed by turning a screw k threaded through a boss c of the member a and engaging the end of the shaft j. In a modification, instead of providing the screwed boss c, the member a may have vertical slots engaging pins projecting from a nut upon the screw k.
Patent GB-1039509-A (GB)
Title: Digital amplifier
Inventor: FRANKS JOSEPH
IPC: H01C7/10
Filed: 1965-07-02
Abstract: 1,039,509. Semi-conductor devices; circuit assemblies. STANDARD TELEPHONES & CABLES Ltd. July 2, 1965, No. 28069/65. Headings H1K and H1R. [Also in Division H3] A digital amplifier consists of a layer of semiconductor material with a plurality of pairs of injection contacts of high and low work function respectively, defining double injection negative resistance diodes. The diodes are connected in series with the intermediate points each joined through an impedance to a common terminal and with the free terminal of the first diode connected via an impedance to a second terminal. The terminals and impedance are insulated from the semi-conductor layer. In a preferred arrangement, Fig. 5, the contacts 4a-4d are of vapour deposited aluminium and are spaced 0À1 mm. from associated evaporated gold contacts 2a-2c on a 10<SP>8</SP> ohm cm. gallium arsenide layer. The remainder of the layer surface is covered with an insulating layer bearing impedances 8a-8c and 9 and terminals 6, 7 all made of vapour deposited chromium-nickel. In operation a standing bias less than the threshold voltage is applied between terminals 6, 7 and width-modulated pulses raise the instantaneous bias to the threshold, to switch on the first diode 4a-2a. This primes the second diode and so on. As the switching time is finite the width of the pulse determines the number of diodes turned on and hence the current amplitude in the output circuit. A negative pulse is used to restore the diodes to the high resistance state.
Patent GB-810623-A (GB)
Title: Improvements in housings for electrical connections
Inventor: PRESTIGE HARRY THOMAS
IPC: H01R13/595
Filed: 1956-09-14
Abstract: 810,623. Two-part couplings. BELLING & LEE Ltd. July 26, 1957 [Sept. 14, 1956], No. 28107/56. Class 38 (1). A socket connector comprising an opensided box 1 has a recess 17 formed in a peripherial wall of the open face in which fits a clamping member 24, the act of mounting the connector on a support 15, by screws 13, 14 passing through longitudinal-holes in said peripheral wall, urging the clamping member into said recess to grip a cable 39 passing into the connector and connected to socket contacts 32, 33 push-fitted into the opposite wall of the box. The box is formed of resilient insulating material and the clamping member formed integrally therewith being connected thereto by a web 23. Specifications 676,144 and 676,172 are referred to.
Patent GB-425372-A (GB)
Title: Trigger mechanism for automatic fire arms
IPC: F41A19/33
Filed: 1933-10-12
Abstract: 425,372. Automatic firearms. LAHTI, A. J., 1, Kansakoulukatu, Jyvõskylõ, Finland. Oct. 12, 1933, No. 28207. [Classes 92 (ii) and 119] Automatic firearms are fitted with a control to enable the weapon to fire single shots or continuously, a separate control being provided to actuate a safety-device. The sear 3 is pivoted at 2 and has a tooth 3b for locking engagement with the forward face of an abutment 18<a> on the breech-block carrier and actuator 18. The sear is urged upwards by a spring 5 seated in a trigger-operated lever 4 which is pivoted at 19 and carries a pawl 12 urged forward by a spring 13. Safety is provided by a cut-away rotatable pin 15 which may be turned to prevent actuation of the sear. Firing is controlled by a spindle 8 linked to a rod 10 so as to regulate the elevation of an abutment 10<a> on the rod. In the position shown, for single firing, the abutment 10<a> is engaged by a face 21 on the actuator, on its recoil, and a lump 10<b> on the rod 10 thereupon trips the pawl 12 from the sear, allowing the latter to rise into the path of the abutment 18<a>. For continuous firing, the spindle 8 is turned by an external hand lever, to withdraw the abutment 10<a> from the path of the actuator, the sear thus being withdrawn as long as the trigger is held. Specification 424,565 is referred to.
Patent GB-407751-A (GB)
Title: Improvements in and relating to ink-wells
IPC: B43L25/04
Filed: 1932-10-11
Abstract: 407,751. Piston apparatus for discharging receptacles. GIBSON, W., Maxwell House, St. Paul's Square, Liverpool. Oct. 11, 1932, No. 28249. [Class 102 (ii).] An inkwell comprises an ink reservoir 2 having a plain cylindrical bore, a plug 3 movable therein and adapted to form a fluid-tight joint with the bore by means of a resilient packing ring 9, and a duct 8 in the body of the plug leading from the reservoir to an open recess in the top of the plug, whereby as the plug is moved into the bore ink is displaced from the reservoir into the recess and flows back on the retraction of the plug, this movement being produced by rotating the plug and a tubular skirt 10 attached thereto, which engages by one or more screw-threads with the member 12 embedded in the base 1 and forming the reservoir. The device may be formed of hard wood, earthenware, glass, or preferably of the material known under the Registered Trade Mark " Bakelite." The periphery of the rubber ring 9 may be formed with a series of finc annular ridges to ensure an efficient fluid-tight joint.
Patent GB-1512255-A (GB)
Title: Hydraulic machine control
IPC: F15B13/04
Filed: 1975-07-04
Abstract: 1512255 Valves SCHWELM & TOWLER HYDRAULICS GmbH 4 July 1975 28308/75 Heading F2V Each segment 1 of a series of stacked segments forming a multi-way valve block comprises main valves 10 to 14 mounted in transverse bores within the segment and controlled by pilot valves 20, 21 secured to the outer walls of the segment. Each main valve 10 to 14 comprises a closure member 16 biased by spring 17 towards a seat on sleeve 15, pilot fluid being supplied to or vented from chamber 22 under the control of valves 20, 21. Adjustable limit stops 18, 19 are provided for main valves 10, 11. The segment 1 includes passages 5, 8 connected with tank and a pressure source respectively. Main valve 14 acts to reduce the pressure from source 8 under the control of pilot valve 21. The segments may be secured together by screws or pull armatures to form the complete block.
Patent GB-1394927-A (GB)
Title: Hydraulic cylinder carry hook
IPC: A01B63/10
Filed: 1973-06-14
Abstract: 1394927 Hooks for storage on tractors INTERNATIONAL HARVESTER CO 14 June 1973 [21 June 1972] 28365/73 Heading A1P [Also in Division E2] A tractor has a hook 30 for storing a hydraulic cylinder periodically used in hydraulically actuated trail-behind implements, the hook being mounted on a pivot pin 26 threaded into the end of the rock shaft 22. The hook has a guide surface 42 intersecting a curved recess 44 to receive the support pin 50 of the hydraulic cylinder 52.
Patent GB-452282-A (GB)
Title: Torsional vibration absorber
IPC: F16F15/10
Filed: 1935-10-01
Abstract: 452,282. Air-screws. WEIR, Ltd., G. & J., Holm Foundry, Cathcart, Glasgow, and BENNETT, J. A. J., Genista, Newton Mearns, Renfrewshire. Oct. 1, 1935, No. 28392. [Classes 4 and 114] [See also Groups XXXII, XXIV, and XXV] In a method of decreasing the amplitude of torsional oscillation of a rotary system subjected to fluctuating torque by means of a flexible shaft coupling, the inertia of a massive coupling - element mounted to operate as a centrifugal pendulum is utilized, the axis of oscillation of the element being skewed relatively to the axis of rotation in order to receive and restore the fluctuating energy of the system. The invention is also applicable to a screw propeller in which case the coupling-element referred to above is replaced by a blade of the propeller which is pivoted on the skewed axis to link means pivoted to the propeller shaft about an axis at rightangles to the shaft axis. Fig. 1 shows a shaft coupling, the shafts 10, 19 being subjected respectively to a fluctuating and constant torque. Arms 14 carrying masses 15 are pivoted at 13 on a link 12 rotatably mounted on a pivot 11 fixed on the end of the shaft 10 at right-angles to the axis of the shaft. The axes of the pivots 13 are inclined to the shaft axis and to the plane of rotation of the masses. The other shaft 19 carries a spider 18 or the like having guiding-slots 17 through which pass the arms 14, the centres of inertia of the arms preferably being adjacent the slots. Fig. 7 shows a screw propeller having blades 14<x> rotatable on the inclined pivots 13 which are carried by links 12, 12<x> pivotally mounted on the shaft 10, the pivot pin 20 extending between the jaws of the forked end of the shaft and carrying by means of a needle race 21, Fig. 5, a floating bush 22 on which are rotatably mounted by means of needle races 23, 24 the plain and bifurcated apertured ends respectively of the links 12<x>, 12. Alternatively, either of the races 23, 24 may be omitted and one of the links 12, 12<x> made fast on the bush 22 and the other link rotatably mounted thereon. The arms 13, Fig. 1, may be connected to the shaft 10 by the device 12, 12<x>, 20, Fig. 7, and the blades 14, 14<x>, Fig. 7, may be connected to the shaft 10 by the link 12, Fig. 1.
Patent GB-1117891-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F9/24
Filed: 1964-07-09
Abstract: 1,117,891. Fuel elements. D. E. HARTLEY. 5 July, 1965 [9 July, 1964], No. 28425/64. Heading G6C. [Also in Division F4] At least two rows of fins 4 are disposed in a fluid flow path 2 bounded by a heat transfer surface 1, each fin being inclined to the fluid flow direction at an angle of less than 25 degrees, and the rows being spaced apart in the direction of fluid flow by a distance of from 1 to 50 times the height of the fin, the arrangement being such as to generate in the fluid a trailing vortex 5 having its axis parallel to the general flow direction of the fluid over the surface. Each fin may be bonded or held by friction to the surface. Alternatively, the leading edge of the surface may be deformed to provide a row of the fins and in one such arrangement one edge of a strip 43, Fig. 10, is so deformed, the strip then being bent into the shape of an annulus which can be wrapped circumferentially around the outer surface of a nuclear fuel element and there held in position by brazing or spot welding. An apparatus is also described (Figs. 13 to 15) for testing the effect on the heat exchange surface of various shapes of baffle, typical examples being illustrated (Figs. 16 to 19).
Patent GB-425954-A (GB)
Title: Improvements in or relating to gyroscopic apparatus
IPC: G01C19/38
Filed: 1934-10-04
Abstract: 425,954. Ball bearings. SPERRY GYROSCOPE CO., Inc., Manhattan Bridge Plaza, Brooklyn, New York, U.S.A.-(Assignees of Bates, M. F.) Oct. 4, 1934, No. 28442. Convention date, Oct. 4, 1933. [Class 12 (i)] To avoid binding of the bearings due to extremes of temperature, the ball bearing between a gyro rotor spindle and the rotor bearing ring has a tapered ball race received within a tapered opening in a housing of metal having a different coefficient of expansion so that the different thermal contractions of the housing and ball race cause the latter to be pushed in a direction to prevent binding. As shown, the hardened steel rotor spindle 4 has conical ends each engaging ball bearings in a hardened steel ball race 6. The periphery of the latter has a conical taper 10 seating against a complementary tapered opening 13 in an aluminium alloy thimble 12 screwed into an aperture 11 in the aluminium alloy gimbal ring 7. The race 6 is held lightly against its seat by a number of springs 15 seating at their outer ends in bores in a cap 16 held in the thimble 12 by a pin 22. A slot in the ring 7 enables the latter to be clamped round the thimble 12 by a screw 21. 17 is an oil wick.
Patent GB-672745-A (GB)
Title: Improvements in or relating to spinning and twisting machines
IPC: D01H13/16
Filed: 1949-11-07
Abstract: 672,745. Spinning-machines. MEINERS, C. O. Nov. 7, 1949, No. 28446/49. Class 120(ii) In a spinning or twisting frame or mule, means are provided to cast a parallel beam of light 2 along the threads 1 passing between the front rollers and thread guide, to facilitate observation of broken ends. The light projector 3 is adjustable on the machine frame and may include light deflecting means such as a mirror to render it easier to accommodate. The beam is projected onto a mirror 12 at the other end of the machine, the mirror having a glarepreventing shade 14. Specification 586,338 is referred to.
Patent GB-225694-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes particularly for wireless signalling
IPC: H01J7/18
Filed: 1923-11-12
Abstract: 225,694. Levy, L. A. Nov. 12, 1923. Vacuum tubes.-A quantity of highly activated charcoal or other absorbent material, such as silica gel, is placed in communication with the space within the bulb of a valve in order to obtain a hard valve, and to keep it hard, by absorbing any traces of residual gases remaining in the bulb after evacuation. The charcoal is heated to a high temperature and absorbs any traces of gas as it cools down. It may be impregnated with magnesium, lithium, red phosphorus or other reducing agents to assist in removing any traces of water vapour, oxygen, or nitrogen. The material may be placed in a small chamber or extension connected with the bulb.
Patent GB-360582-A (GB)
Title: Improvements in machines for milling metals or other substances
IPC: B23C1/027
Filed: 1930-09-24
Abstract: 360,582. Milling. WALLS, A. G. and WALLS, R. N., 7, Westbourne Grove, Ashton-on-Mersey. Sept. 24, 1930, No. 28522. [Class 83 (iii).] Milling-machines of the constant height table type, or knee type not fitted with a secondary vertical guide, are braced during cutting by a pillar which telescopes downwards into bosses in the table support. A knee type machine is shown in end view in Fig. II provided with a bracing column 11 vertically adjustable by a rack and pinion 21 in a boss 12 integral with the knee; an overarm 7 terminates in a boss 19 on which is sindably mounted an end arbor support and boss 20. The bracing column is raised to pass through the three bosses 12, 19, 20 which are then clamped around the brace prior to the cutting operation. Fig. I shows a similar arrangement for a constant height table machine.
Patent GB-865961-A (GB)
Title: Installation for hydraulic conduit transport of containers
IPC: G21F7/01
Filed: 1959-08-21
Abstract: 865,961. Handling nuclear fuel elements. COMMISSARIAT. A L'ENERGIE ATOMIQUE. Aug. 21, 1959 [Aug. 30, 1958], No. 28640/59. Class 39(4). Spent fuel elements, introduced into a lock 1, are hydraulically conveyed through a conduit 3 into a pool 8 by water drawn from the pool through a conduit 7 and directed to the lock through a conduit 9 by a motor pump 6. Each fuel element, upon removal from the reactor, is placed in a metal sheath 11, the ends of which are then welded, and the sheath conveyed to a supply ramp 12 of the lock, all these operations being performed automatically. The lock 1, Fig. 3, comprises a rotatable throttle 15 having a longitudinal cavity 16 formed at the bottom by spaced partitions 16a, the cavity, when facing in the upward direction as shown, being positioned to receive a sheath 11 from the ramp 12. Pipes 2 permit evacuation of the water which is displaced from the cavity upon reception of a sheath. The throttle 15 is then rotated by a motor (not shown) so that the sheath is deposited in a lower portion 13b of the lock which is coaxial with the conduits 9, 3, operation of the pump 6 then driving the sheath to the end of the conduit 3. The conduit 3, Fig. 5, is terminated by a fixed horizontal trough 18 and a trough 19 pivotal about a shaft 20 and the sheath is brought to rest by frictional forces and by a water jet from a nozzle 26 so as to lie partly within both troughs. A flexible finger 21 driven in the direction F by a chain 22 is set in motion so as to bring the sheath wholly within the trough 19, the latter then being rotated in direction G or H according to whether the sheath is in good or bad condition and the sheath is deposited on an inclined plane (not shown) whence it rolls into the pool 8. The sheaths are counted by a differential manometer 10 having membranes connected respectively to the basin 4 and conduit 3.
Patent GB-1431500-A (GB)
Title: Apparatus and method for producing filament tow filter rod having a foamed theremoplastic sheath
IPC: B29C48/09
Filed: 1973-06-15
Abstract: 1431500 Cigarette filters PHILIP MORRIS INC 15 June 1973 [21 Aug 1972] 28658/73 Heading A2C [Also in Divisions B4 and B5] A cigarette filter rod comprises a filament tow around which has been extruded and drawn down onto (see Divisions B4-5), a tubular sheath of expanded plastics. The examples relate to a crimped cellulose acetate tow of 3.3 denier/35000 total denier which, upstream of the extrusion die is spread, bloomed and plasticised with a solution of 10% triacetin, and, in Example 1, is sheathed by the extruder with 0.924 density polyethylene tumble blended with 0.3 parts by weight of paraffin oil and 0.5 parts 1, 1'-azobisformamide, the sheath tow being cooled in passage through two circular sizing plate openings in a cooling trough maintained under vacuum. In further Examples, (2), the sheath comprises polypropylene of 0.90 density, blended as in example (1), but with the addition of 0.52 parts of zinc oxide powder; (3), the polyethylene of example (1) was additionally blended with 1 part titanium dioxide; (4), the polyethylene of example (1) was additionally blended with 114 parts talcum powder, and 0.35 parts zinc oxide. Dimensions of the sheathed tow are specified. Upstream of the extrusion die, the tow is formed from cellulose acetate filaments 18 which, in being drawn by rolls 22 through a blooming and ooating chamber, are coated with a plasticiser e.g. a solution of 9 weight per cent triacetin, to promote inter-fibre bonding. The tow 24 is permitted to relax intermediate rolls 22 upstream of the extrusion die.
Patent GB-218551-A (GB)
Title: Improvements in removable truck bodies
IPC: B62B1/12
Filed: 1923-11-14
Abstract: 218,551. O'Brien, J. H., Hyatt, W. M., Garnsey, L. F., Carpenter, J. M., and Spies, A. E. Nov. 14, 1923. Vehicles with removable bodies.-A removable body for hand-trucks comprises two frame members S bent as shown and in spaced relation to each other and provided with load supporting boards 11 and an angled fulcrum piece 12 secured in the position shown. The frame members 8 are preferably of angle iron spaced so as to fit over the side members 5 of the truck. The removable body is adapted to stand upright and to be tipped into position on to the truck by means of the usual lip on the truck and of the fulcrum piece 12.
Patent GB-1103461-A (GB)
Title: Producing bulked synthetic yarns
Inventor: CHECKLAND PETER BERNARD
IPC: D02G1/10
Filed: 1964-07-13
Abstract: Bulked synthetic yarns are produced by passing a bundle of filaments of a thermoplastic synthetic linear polymer, each filament having a non-circular cross-section, across and in contact with a narrow surface heated to a temperature above the melting point of the filaments so as to heat the bundle of filaments on one side only continuously along their length and then relaxing the filaments by subjecting them to a shrinkage treatment under reduced tension.  The bundle of filaments may be passed successively across and in contact with two or more narrow surfaces each heated to a temperature above the melting point of the filaments.  The filaments may be passed twice across a single heated surface or may be passed once across each of two heated narrow surfaces.  The tension of the filaments passing across the narrow surface is sufficient to hold the filaments in contact with the surface, but may be low enough to cause a stretch of less than 10%.  When the filaments are passed successively across two or more narrow heated surfaces each surface may be at the same temperature or their temperatures may differ from one another. The cross-section of the filaments is preferably trilobal or cruciform. It is preferred to use yarns which have a potential shrinkage before passage across the narrow heated surface of at least 7%, preferably 10-20% when subjected to the shrinkage step. In an example, a 540 denier 48 filament polyethylene terephthalate melt spun yarn having filaments of trilobal cross-section is drawn to 3.6 times its original length and then passed across and in contact with the surface of a tungsten strip 0.025 inch wide maintained at a temperature of 365 DEG C by thermal contact with a metal block containing a 50 watt heater.  The yarn is passed over a curved ribbon-forming guide making a 90 DEG  arc of contact with it before passing across the tungsten strip where the filaments are deflected by about 5 DEG  and are under sufficient tension to ensure good contact with the strip, but to cause a stretch of less than 10%.  The filaments are then relaxed in hot air at 205 DEG C by being overfed into a tube through which hot air is circulated, the ratio of the final speed to take-up speed (i.e. the relax ratio) being 1.43 to 1.0.  The process may be applied to yarns of other polyesters or of polyamides or polyolefines.  For a given polymer, narrow surface temperature, and speed of traverse of the filaments, the width of the narrow surface should not be so great as to cause the filaments to melt on the surface, and should not be so small as to cause mechanical deformation or damage to the filaments.