baber/WOPTO huggingface dataset:
Patent GB-1415966-A (GB)
Title: Crimped polyester fibres
IPC: D02J13/00
Filed: 1973-11-05
Abstract: 1415966 Crimped polyester fibres TEIJIN Ltd 5 Nov 1973 [6 Nov 1972] 51323/73 Heading B5B Crimped polyester fibres are made by (1) drawing an undrawn tow of an ethylene terephthalate containing at least 85 mole per cent ethylene terephthalate units to 1À15-1À45 times the natural draw ratio (2) heat treating the drawn tow under tension at temperature T 1 (‹C) (3) feeding the heat-treated tow into a stuffer crimper to crimp the tow at a temperature of 80-130‹ C. and (4) heat-treating the crimped tow at a temperature T 2 (‹C) while allowing free shrinkiage of the tow and maintaining the packing density of the tow at at least 200 kg./m.<SP>3</SP>, T 1  and T 2  satisfying the relations T 1  is preferably > 180‹ C. and the tow has a total denier of 50,000-4,000,000. In step (1) drawing is effected at 60-100‹ C. in a steam or water bath or in one stage in water at 60-80‹ C. then in a second stage in water or steam at 80-100‹ C. optionally with the heat treatment step (2).
Patent GB-1068487-A (GB)
Title: Film manufacture
Inventor: LEMOINE JEAN EDOUARD
IPC: B29C55/14
Filed: 1965-12-03
Abstract: 1,068,487. Stretching films. EASTMAN KODAK CO. Dec. 3, 1965, No. 51500/65. Heading B5B. A film is transversely stretched by a method wherein the edges of the film are gripped by two sets of pinion gear-wheels each located around the periphery of a driving gear-wheel having a toothed periphery while the driving gear-wheels are rotated at the same speed but with their axes at an oblique angle whereby a transverse stretching force is exerted across the film as its edges are carried forward by the driving gear-wheels. In apparatus as shown a film 1 supplied from reel 11 passes through the nip of entry cylinders 2, 2<SP>1</SP>, which run the whole width of the film, and so reaches the vicinity of crimper pinions 4, 4<SP>1</SP>. These crimper pinions under the continuous urging of their associated coilspring (14), (see Fig. 3, not reproduced), force the film into the teeth of the associated driving gear-wheels 3, 3<SP>1</SP> to form embossed top and bottom surfaces thereon comprising alternating indentations (15) along the margins of the film (Figs. 4 and 5, not reproduced). As the film is continuously urged along by rotation of the driving gear-wheels 3, 3<SP>1</SP>, it is gradually stretched due to the inclination of the driving gear-wheels with respect to one another and the frictional engagement of the embossed surfaces by the successive pinions 5a, 5<SP>1</SP>a, 5b, 5<SP>1</SP>b, 5c, 5<SP>1</SP>c, 5d, 5<SP>1</SP>d, 5e, 5<SP>1</SP>e, 5f, 5<SP>1</SP>f, which firmly hold the edges of the film while being stretched. As the stretched film reaches the vicinity of pinions 5f, 5<SP>1</SP>f, it passes therefrom to the nip of exit rollers 6, 6<SP>1</SP>, and is then taken up on reel 7. Driving gear-wheels 3, 3<SP>1</SP> are linked together by a universal or Cardan joint 22, 22<SP>1</SP> and may be driven by motor 21. Heating of the film during stretching may be affected by the provision of hollow chambers (17), the central chambers thereof being electrically heated and thus effectively heating a cylindrical film supporting surface 16, disposed between gear 3, 3<SP>1</SP>. The outer surface of support 16 is smooth and may be of polished metal but is preferably constructed of a thin fibre glass fabric. The outer film carrying surface of support 16 must be of such a shape as to conform to the general outline of driving gear-wheels 3, 3<SP>1</SP> which results in a slightly elliptical cross-section thereof due to the angle of divergence of the two driving gear wheels with respect to one another. The hollow chambers 17A, 17B, 17C, 17D are suitably constructed of brass or other heat conducting metal plates. The teeth of the driving gear-wheels and the associated pinions may be of any shape, including straight, helicoidal or chevron shaped. Means may also be provided for varying the angle α formed by driving gear-wheels 3, 3<SP>1</SP> and their supporting frames, so that the film may be stretched to different thicknesses as desired.
Patent GB-518270-A (GB)
Abstract: 518,270. Retarding controllers. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 17, 1938, No. 24245. Convention date, Aug. 17, 1937. [Class 38 (iii)] Upon depression of a pedal 12, a controller shaft 17 is urged to the on position, but a pawl 29 permits only a small movement of the shaft, sufficient to rock the pawl about a pivot to close contacts 37, and short-circuit a coil 40 opposing coil 41 of an electromagnet. Thereupon an armature 33 rocks an arm 25 to a position in which the pawl 29 is disengaged from its ratchet wheel and the contact 37 is opened, also contacts 36 are closed to pick up a relay 39. The opening of the contact 37 causes the pawl to reengage the ratchet wheel and stop the shaft 17. The contacts 39 only re-close after contacts 36 open and the motor current subsides, thereupon the shaft 17 makes a further step. The contacts 39 are closed by a spring 49 the tension in which is increased as the pedal is depressed.
Patent GB-1386889-A (GB)
Title: Time-division-multiplex telecommunication network system
IPC: H04Q11/04
Filed: 1972-11-11
Abstract: 1386889 Multiplex pulse code signalling; automatic exchange systems SIEMENS-ALBIS AG 11 Nov 1972 52171/72 Headings H4L and H4K The slowest p.c.m.-t.d.m. exchange of an interconnected network I thereof is arranged to be faster than the fastest exchange of another network II, so that synchronism can be maintained by guaranteeing a minimum number of stuffing ("blind") bits per frame for the network I. The network II is said to be superior in the hierarchical arrangement of networks II, I in Fig. 1, and three levels may be used (Fig. 2, not shown). The minimum number of stuffing bits per frame which must be available in any subordinate network such as II is the difference between the maximum bit rate of the fastest exchange of the subordinate network I and the minimum bit rate of the slowest exchange of the superior network II, multiplied by the quotient produced from dividing the number of actual information carrying bits per frame by the minimum bit-rate in network II. In the three tier system, network II is superior to network I as in Fig. 1, but acts as the subordinate network to network III which is the slowest. A link not shown between two networks II, IIb of the second tier enables the slowest exchange in either to take over as "clock", in the case of failure of the highest ranking network III. The stuffing bits are inserted, and the need for them detected, by use of buffer stores on each input/output line.
Patent GB-1277823-A (GB)
Title: A unit for the collection and transfer of articles between machines forming a packaging line
IPC: B65G47/51
Filed: 1969-10-24
Abstract: 1277823 Transferring articles between endless conveyers ALFA FARMACEUTICI SpA 24 Oct 1969 [26 Oct 1968] 52240/69 Heading B8A A unit for the collection and transfer of articles between machines in a packaging line, comprises first and a second conveyer (5 and 17, respectively) which are arranged to travel continuously in opposite parallel directions, a stepping conveyer 8 arranged to travel between the outlet of said first conveyer 5 and the inlet of said second conveyer 17, means 13-15 adjacent the first conveyer 5 for forming rows of a pre-established number of articles, first transfer means 6 for successively transferring the rows on to the stepping conveyer 8, second transfer means 21 for successively transferring the rows from the stepping conveyer 8 to the second conveyer 17, the steps of the stepping conveyer 8 being greater than the width of the articles, and the first and second transfer means 6, 21, being arranged to operate in timed relationship with the stepping conveyer 8. A cage 7 is arranged along the edge of said first conveyer adjacent the stepping conveyer 8 and is raisable in order to allow the transfer of the rows on to the stepping conveyer 8 by the first transfer means 6. The means for forming the rows on the conveyer 5 comprises switches 13, 14, and 15. An hydraulically operated gripping arrangement 27, 29 is actuated in response to the capacity of a  downstream section of the conveyed stream of articles as indicated by switches 24, 25, so as to grip an article and prevent further discharge of the conveyer. The conveyer 8 functions as a magazine so as to absorb fluctuations in demand of both a packaging machine (not shown) being fed by the conveyer 17, and a machine (not shown) supplying articles to the conveyer 5. An auxiliary conveyer belt 20 is disposed along one side of the conveyer 8. A shouldered surface 12 of the transfer pusher 6, functions as a stop to the flow of articles to the conveyer 5 during transfer. A switch 19 is arranged to sense the capacity of articles as they tend to back-up at the downstream end of the conveyer 8. If the flow density drops below a predetermined amount, the switch 19 stops the conveyer 8. A dead plate 18 between the conveyers 8 and 17 has an inverted V-shaped cross-section. Each row of articles is allowed to slide down the downstream slope of the inverted V on to the conveyer 17 as a shouldered transfer member 21 is retracted.
Patent GB-1072769-A (GB)
Title: Method and apparatus for washing clothes
IPC: D06F17/06
Filed: 1965-12-09
Abstract: A washing-machine has a rotary impeller mounted in the bottom of the wash tub which forces water radially and tangentially outwards into recesses in the base of the tub which recesses are so designed as to generally reverse the direction of of the water flow relative to the direction of impeller rotation and also produce an upward flow of water.  The base of the washtub is inclined downwardly towards the centrally mounted impeller. Several modifications of impeller and base configuration are shown.
Patent GB-1523019-A (GB)
Title: Containers
Inventor: LOFBERG G G
IPC: B65D88/16
Filed: 1976-12-15
Abstract: 1523019 Flexible skips SUPRA AB 15 Dec 1976 [13 Jan 1976] 52274/76 Heading B8K In a container comprising a casing 10 and a flexible elongate member 11 which is attached at its ends to the top and bottom of the casing and has a central portion 15 extending through the container space and through an opening 14 in the top of the casing to form a lifting loop 16, a protective device, e.g. a pipe 24, extends through the container space so as to shield in a liquid-tight manner the container space from the portion of the member 11 passing therethrough. As described the ends of the member 11 are wedged in apertures in intermediate members 20, 21 around which the ends of the casing 10 are gathered by ropes, e.g. 19. Prior to filling part of the top of the casing may be gathered by a rope or clip 26 to leave a filling opening 27. After filling the rest of the casing top is gathered around the member 20 and secured by a rope, and the upper end 28 of the pipe 24 is folded down about the gathered end.
Patent GB-1276631-A (GB)
Title: A vee-belt angle drive for driving cooling fans of an internal combustion engine
IPC: F01P5/04
Filed: 1970-11-06
Abstract: 1276631 Belt tensioning means DR ING hcF PORSCHE KG 6 Nov 1970 [11 Dec 1969] 52893/70 Heading F2Q [Also in Division F1] A V-belt angle drive for driving the cooling blower 2 of an air-cooled internal-combustion engine comprises differently sized V-belt pulleys 6, 7 on the engine crank-shaft 5, differently sized V-belt pulleys 9, 10 on the shaft 11 of the blower 2, and two sets of differently sized deflecting pulleys 12, 13 mounted on an axis extending transversely to the axes of rotation of the crank-shaft 5 and drive spindle 11, the pulleys of each set of deflecting pulleys being rotatable independently of each other on a common spindle. The blower 2 is driven from the crank-shaft 5 through two V-belts 3, 4. The deflecting pulleys 12, 13 are mounted on shafts 14, 15 of dynamos 16, 17, the pulleys 13 being keyed to the shafts and the pulleys 12 being rotatably mounted by means of ball bearings 18. The dynamos 16, 17 are mounted on a block 22 which is diagonally displaceable on a bracket 21 in order to vary the tension of the belts 3, 4. Fine adjustment of the tension of belt 3 may be effected by the adjustment of the effective diameter of the pulleys 12 by the insertion of spacers 23 between the flanges.
Patent GB-1377568-A (GB)
Title: Process for preparing 6-azapyrimidine ribonucleosides
IPC: C07H19/12
Filed: 1972-11-16
Abstract: 1377568 6-Azapyrimidine ribonucleosides CESKOSLOVENSKA AKADEMIE VED 16 Nov 1972 [18 Nov 1971 23 Nov 1971] 53067/72 Heading C2C Compounds I in which R<SP>1</SP> is hydrogen or acyl and R<SP>2</SP> is hydrogen or C 1-6  alkyl are prepared by treating a 1,2,4-triazine II in which R 3  is C 1-6  alkyl or benzyl, at room temperature with an equimolar amount of an alkali metal alkoxide in a C 1-6  alkanol or benzyl alcohol to form a compound III treating the latter with an excess of an alkali metal alkoxide in an alcohol (as defined above) in the presence of alkylating agents or anhydrous salts of heavy metals (preferably mercuric salts) at an elevated temperature to form compound IV condensing either compound III or IV in an inert solvent at between 60-150‹ C. or in the presence of mercuric salts with a triacylribofuranozyl halide to form a compound V in which A is -CO-N=C(SR 3 )- or and R 1  is acyl, selectively hydrolysing a compound V with hydrogen peroxide in acetic acid or dialkylating a compound V with a hydrogen halide at room temperature in an aprotic solvent if need be in the presence of acetyl chloride or acetic anhydride to form a compound I in which R 1  is acyl and if desired diacylating by a known procedure to form Compounds I in which R 1  is hydrogen. R 1  is hydrogen, acetyl or benzoyl, R 2  is hydrogen or acetyl and R 3  is methyl.
Patent GB-1375375-A (GB)
IPC: F16K11/074
Filed: 1971-11-17
Abstract: 1375375 Valves G ERLICH and M LERNER 17 Nov 1971 [3 Dec 1970] 53417/71 Heading F2V A multiport valve for use in fluid transporting systems in such areas as the chemical process industry, water treatment facilities, and swimming pool water circulation systems comprises a valve body 1 preferably injection moulded of plastics material having a plurality of fluid ports 11-15 and corresponding flow chambers 11a-15a, a rotatable cover 2 also preferably formed of plastics material having at least one flow passage as 21, 22 to selectively interconnect at least two flow chambers, and a resilient unitary sealing ring 4, preferably of neoprene, for sealing the cover and disposed as a valve seat between the cover and the valve body. The cover is mounted to permit axial movement and is locked by a threaded post 7 with a knob 5 or alternatively a cammed lever pivoted to the post 7 is provided to lock the cover which is biased towards the open position by a spring. The sealing ring is provided with a peripheral lip 45 to effect the sealing between the cover and body which may be augmented by an "O" ring.
Patent GB-1530720-A (GB)
Title: Actuators for operating control devices
IPC: F16K31/124
Filed: 1976-12-21
Abstract: 1530720 Hydraulic actuator SIEMENS AG 21 Dec 1976 [29 Dec 1975] 53418/76 Heading F1D An hydraulic actuator comprises a housing 2, piston 4, coupling member 7 which may be connected to the closure member 9 of a valve, dished springs 12, and a spring 13. A locking pin 27 may be biased by a spring 26 into a bore 25 to lock the piston 4 in a forward position and may be retracted by fluid-pressure in a chamber III. The piston may be moved to its forward position by fluid-pressure in a chamber II or by a mechanical arrangement Fig. 2 (not shown) comprising a hand operated screw threaded member engaging a screw threaded bush (21). Prior to locking, the piston may be held by fluid-pressure in a chamber I. When the pressure in chamber I is released and the locking pin 27 or bush (21) retracted, the piston is initially catapulted upwards allowing fluid from chamber 1 to be discharged through a port 16 by the springs 12, the motion towards the end of upward travel of the piston being damped by hydraulic damping means 18, after which the spring 13 moves the coupling member 7 to open the valve. An hydraulic circuit Fig. 4 (not shown) for controlling fluid-flow to the chambers I, II, III, of the actuator and arrange ments whereby the actuator controlled valve may be incorporated in a steam turbine assembly Figs. 5 and 6 (not shown) are disclosed.
Patent GB-1532409-A (GB)
Title: Centrifugal separator
IPC: B04B3/00
Filed: 1975-12-11
Abstract: 1532409 Centrifuge-filter G L A C I E R METAL CO Ltd 11 Dec 1975 [11 Dec 19741 53504/74 Headings B1D and B2P Lubricating oil or fuel for an I.C. engine flows up hollow, fixed shaft 12 and through holes 21, 22 into chambers 17 and 18 inside a casing 15 rotatably mounted at 19 on shaft 12, the liquid flowing from chamber 17 inwards through a gauze strainer 23 to outlet 24 and thence to the engine via outlet 14 at the top of the shaft. If the delivery pressure is sufficient, spring-loaded valve 33 is forced open, and some liquid then flows from chamber 18 through tangential nozzles 32, causing the casing 15 to rotate so that centrifugal separation of solids 41 occurs in both chambers. This latter liquid flows from outer housing 11 back to the oil sump or fuel tank via an outlet 51. A second valve 36 opens to by-pass strainer 23 if the pressure across it rises sufficiently. Strainer 23 and the cylindrical wall of casing 15 are removable and replaceable when clogged or loaded with solids.
Patent GB-1361259-A (GB)
Title: Gas conduits systems for engines
IPC: F02M35/16
Filed: 1971-11-18
Abstract: 1361259 Motor vehicle exhaust systems INTERNATIONAL HARVESTER CO OF GREAT BRITAIN Ltd 23 Oct 1972 [18 Nov 1971] 53594/71 Heading B7H [Also in Division F1] A gas conduit system for an engine 1 in a compartment 2 closable by a hood 3 comprises an air inlet pipe 12 and an exhaust pipe 20 mounted on the engine and separate pipes 13, 22 mounted on the hood 3 so as to be brought into operative juxtaposition with the air inlet pipe 12 and exhaust pipe 20 when the hood is closed. Each of the pipes 12, 20 may be partly inside the associated pipe 13 or 22 in the closed position of the hood or may be fitted with a resilient member (17), Fig. 3 (not shown), which abuts a flange (18) on the associated pipe. Exhaust pipe 20 includes a silencer 21 and the air inlet includes a main filter 15 and a primary filter 14.
Patent GB-1471719-A (GB)
Title: Simulated woven fabrics
IPC: D04H3/04
Filed: 1974-12-12
Abstract: 1471719 Non-woven net fabric QUICK SERVICE TEXTILES INC 12 Dec 1974 [26 Dec 1973] 53722/74 Heading DIR A non-woven fabric comprises parallel "warp" threads 17 including selvage threads 17a, and parallel plastics "weft" filaments 16 which intersect the warp threads, e.g. at 90‹, and are joined to them at their points of intersection, the weft filaments being joined end on to the selvage threads 17a. As disclosed the joining is by autogeneous bonding. Preferably two selvage threads are fed through two grooves in a die and carried beneath an extrusion slit whose length is less than the distance between the selvage threads. A set of grooves transverse to the selvage thread containing grooves is moved past the slit and plastics material is extruded from the slit as each groove passes it to form a weft filament 16. The pressure applied to the plastics during extrusion forces it to expand towards the selvage threads and form end on joints. The remaining warp threads 17b are then laid across the still plastic weft filaments 16 and roller pressure is applied to ensure autogeneous bonding at the intersections. Heat or ultrasonic energy may be applied and the warp filaments preheated to supplement coherence produced by the plasticity of the extruded material. The material of the weft filaments may extend partially round the selvage, Fig. 11, or completely, Fig. 12. The material from adjacent weft filaments may coalesce to form a continuous coating (25, Fig. 10, not shown) along the length of each selvage thread. The weft filaments may be of round, rectangular triangular or U-shaped cross-section. They may be composed of a polymer or copolymer of vinyl chloride, vinylidene chloride or vinyl acetate, polyethylene, polystyrene and its copolymers with butadiene, polyacrylonitrile, acrylic resins, natural rubber, neoprene, polyamide, polyester, cellulose acetate, viscose, cupramonium cellulose, regenerated protein or a condensate of an aldehyde with phenol, melamine or urea. The warp threads may be selected from the materials specified for the weft or they may be of a non plastics material. The warp threads may be mono filament or multifilament yarns. The yarn may be twisted. All the warp threads, or alternate warp threads may be elastomeric and may be wrapped with a non elastomeric yarn.
Patent GB-1271626-A (GB)
Title: Electric timepiece
IPC: G04C3/06
Filed: 1970-11-12
Abstract: 1,271,626. Watches. DAINI SEIKOSHA K. K. Nov.12, 1970 [Dec. 8, 1969], No.53948/70. Heading G3T. In an electric timepiece, a pallet 15 carries a permanent magnet 16 which is fixed coaxially with pallet staff 17 and co-operates with a magnetic system comprising a triangular yoke 28 and a driving coil 29, the pallet 15 thus driving a stepping wheel 25 and impulsing a balance mechanism 1 through a pallet fork 15c and a first roller jewel 6. The driving coil 29 is energized through a transistor (36), Fig. 4 (not shown) when a second roller jewel 7 deflects a spring contact 9 so that it touches a fixed contact pin 11. The contact 9 is damped by a resilient wire 9a having a natural frequency three to five times higher than that of the contact 9. The damper may alternatively be a blade (9b), Fig. 6 (not shown). The transistor may be a M.O.S. transistor (49), Fig. 7 (not shown), the contacts 9, 11 being in the transistor base or gate circuit to minimize the switched current. The spring contact 9 is carried by a holder pin 10, the pins 10, 11 being fixed to a printed circuit board 12 which is attached to a base-plate 23 of the timepiece. Arms 26, 27 of the magnetic yoke 28 define a circular aperture in which the magnet 16 oscillates, the yoke 28 being fixed to the base-plate 23 by screws 30a, 30b, 33, 34.
Patent GB-544223-A (GB)
Abstract: 544,223. Magnetos BERNARD, J. June 3, 1940, No. 9643. Convention date, July 4,1939. [Class 35] In a multi-armature ignition magneto having two or more armatures acted on by a common rotating magnet, the distributers of the several armatures have their axes perpendicular to and driven by a common bevel gear on the magnet axis. The distributers may be given the same or different directions of rotation and may be arranged to maintain a given direction independently of that of the magnet. The angular setting of the armatures is preferably the same as that of the magnet poles. In the form shown in Fig. 2, the two armatures 2a, 3a on opposite sides of the axis of the magnet 1 are coupled to the distributors 12, 11 by resilient contacts 18, 19 and conductors 16, 17 embedded in the insulating covers 14, 15 of the distributer compartments. An intermediate onductor 40 is used with an unsymmetrical armature disposition, as shown, but is omitted if the armatures are in the same plane. A bevel gear 7a drives in opposite directions the two distributer shafts 36, 37. To maintain these directions independently of the direction of the rotation of the magnet the magnet shaft is extended between the shafts 36, 37 so that the bevel 7a may be moved from the left-hand position shown to the right-hand end of the shaft. In an alternative form the two distributers are mounted on a common shaft and a single bevel wheel on this shaft gears with the bevel 7a to rotate them in the same direction. A fluid-tight separation may be arranged between the distributor and gear compartments. Fig. 4 shows a 2-armatures each with poles 50, 51 co-operating with a symmetrical 4-pole magnet. Instead of the poles 50, 51 of each armature being exactly and respectively 180 degrees from the corresponding poles of the other, they are angularly displaced so that the two spark trains are displaced in time.