baber/WOPTO huggingface dataset:
Patent GB-1426031-A (GB)
Title: Production of bags and sacks
IPC: B31B23/00
Filed: 1973-06-26
Abstract: 1426031 Seaming non-metallic sheet material; making bags HOECHST AG 26 June 1973 [29 June 1972] 30192/73 Headings B5K and B5D Bags or sacks are produced from seamless stretched tubular thermoplastic film by clamping the tubular film in flattened form with one end projecting beyond a clamp 5 and heating the projecting material sufficiently to fuse it without degradation into a seam adjacent to the edge of the clamp, the extent of the projection being such as to give a seam thickness of 2 to 10 times, preferably 2 to 6, that of the total thickness of the superposed film layers. Preferably, the film is polyester, e.g. polyethylene terephthalate, polyamide or polypropylene, is biaxially oriented, has a wall thickness of 6-100 Á, preferably 20- 50 Á, and is heat shrinkable. Before fusion, the film is brought to a predetermined temperature by the circulation of a heating or cooling medium through the clamp. Fusion is effected by infrared radiation, a laser beam, or a hot gas. Preferably, a hot gas flame is moved along the projecting material from one edge to the other. The seam may be curved. After seaming, the seam and the area adjacent thereto may be subjected to stretching at elevated temperatures e.g. by calender rolls. Multiaxial stretching may be effected by inflating the formed bag whilst applying a certain pressure. In one embodiment, Fig. 1, gripper tongs 9 intermittently feed flattened tubular film from a roll 1 through one bag length, the tension being kept constant by a compensating roller 2. Static electricity is discharged by a corona discharge device 4 and the lateral edges of the film are guided by optical control means 13. Upper and lower plates 5a, 5b of the clamp 5 are opened and closed by pneumatic, hydraulic, magnetic, electrical or mechanical devices 6a, 6b. After closing of the clamp 5, a cutting device 7 is moved along the edge thereof to leave a predetermined film projection which is fused by the movement of a heat source 8 therealong. After opening of the clamp 5, resilient plates 15 hold the fused film until the tongs 9 are inserted into the clamp and grasp the film to feed it through a bag length. Static electricity is again discharged by a corona discharge device 10. The finished bag is deposited on a stack ST by the co-opertion of the tongs 9 with a swinging arm 14. In a modification, Fig. 3, the upper plate 5a of the clamp is fixed. Channels 12 are provided for a heating or cooling medium.
Patent GB-774661-A (GB)
Title: Devices for supporting containers to be loaded on to and unloaded from vehicles
IPC: B65D90/14
Filed: 1955-10-21
Abstract: 774,661. Removable load containers for vehicles. RASMUSSEN, B. S. H. Oct. 21, 1955, No. 30201/55. Classes 78 (3) and 78 (4). A frame 2 for supporting a container 1 so that it can readily be removed from a vehicle is supported alternatively by adjustable or telescopic legs 5 or by jacks 3, the piston-rods 10 of which bear on abutments 9 adjustably secured on vertically sliding legs 7. A sillustrated, the legs 5 comprise two telescoping portions and can be both pivoted and slid on an axis 4 so that they may be housed in the position shown to the right-hand side of Fig. 1 in which they rest on brackets 6. In an alternative construction, however, the legs 5 comprise three relatively telescoping portions and do not pivot. Further vertically sliding legs 14 are also provided and may terminate in skids or castors. The frame 2 carries rail wheels 13, whose track may be adjustable, so that the container may be loaded and unloaded between a rail vehicle and its track by a ramp and suitable cables.
Patent GB-358724-A (GB)
Title: Improvements in dry-pipe valves for fire-extinguishing sprinkler systems
IPC: A62C35/64
Filed: 1930-10-10
Abstract: 358,724. Fire-extinguishing sprinklers. GRIFFITH, W. B., 263, Whitehorse Pike, Audubon, New Jersey, U.S.A. Oct. 10, 1930, No. 30407. [Class 47 (ii).] In a dry-pipe valve for fire-extinguishing sprinkler systems, an arm 15 is pivoted to the casing 1 at 16 between the water and air-valve seats 4, 6. The arm carries, intermediate its ends, the water clapper 8 by means of a screw 24 adjustable in a split bearing 22. At its free end, the arm is pivoted at 20 to one side of the air clapper 10. At this side, the air clapper has a shoulder 36 arranged to engage beneath an adjustable abutment 35 when the valves are in closed position, as shown. The air clapper includes a flexible valve ring 30 that engages the seat 6. When pressure in the air chamber 13 of the valve is released, the air clapper first tilts about the pivot 20 until the shoulder 36 is disengaged from the abutment. The arm 15 can then turn about its pivot 16, carrying both clappers to the position shown in dotted lines. Tilting of the clapper 10 about its pivot 20 is limited by the engagement of a finger 40 with the bearing 22. When the valves are in closed position, the finger 40 holds open a drain valve 43. Should the valves tend to reseat after partial opening, the shoulder 36 will prevent such reseating by engaging the end face of the abutment 35.
Patent GB-684529-A (GB)
Title: Improvements in the manufacture of capacitors
Inventor: GROUSE RICHARD ALFRED
IPC: H01G13/00
Filed: 1950-12-13
Abstract: 684,529. Making electric condensers; soldering. HUNT, Ltd., A. H. Sept. 10, 1951 [Dec. 13, 1950], No. 30431/50. Classes 83 (ii) and 83 (iv). [Also in Group XXXVI] Strip dielectric having separated metallized areas on one face is assembled in a plurality of layers so that the metallized areas are in register, and the assembly is sub-divided by transverse cuts through the unmetallized areas into a plurality of separate condensers. Metallized paper or polystyrene strip is led from spool 10, Fig. 1, via rolls 12, 13, 17 to a demetallizing drum 20 which is profiled to leave metallic areas 25, 26 as shown in Fig. 2, the strip is then wound in a plurality of layers on a wheel 21, the metallic areas of one layer registering with those of the next, but being displaced transversely. To correct for misalignment due to the increasing diameter of the roll 24, a jockey roller 29 moves arm 27 which carries pivoted arm 18 on which is pivoted roller 17, so that the roller 17 is displaced as the diameter increases. When the assembly is complete, the annulus of condensers is removed, copper is sprayed on the end faces through masks on small areas 33, Fig. 3, terminal wires 34, 35 are soldered to the copper faces, and the assembly vacuum dried and impregnated with, e.g. materials known under the Registered Trade Marks Marco (SB-28C) " and " Araldite (Resin B)". The annulus is then divided, the division being preferably associated with a testing machine which tests each section of the annulus in turn, the unsatisfactory units being ejected into a reject bin. The annulus may be tested as a whole. The individual condensers may be flattened by pressure. Specification 647,573, [Group XXXVI], is referred to.
Patent GB-225383-A (GB)
Title: Improvements in or relating to lawn mowers
IPC: A01D34/84
Filed: 1923-12-04
Abstract: 225,383. Poyser, G. W. Dec. 4, 1923. Addition to 217,127. Lawn-mowers.-An auxiliary roller 1 mounted in a forked member 5 is secured to a downwardly extending lug 3 formed on the cross stay of a lawn-mower instead of to the side frame as described in the parent Specification. The lug 3 is slotted for the securing bolt 4 which passes through a slot formed in the member 5 the interengaging surfaces of the lug and the member being transversely corrugated.
Patent GB-672652-A (GB)
Title: Improvements in alternating current dynamo-electric machines
IPC: H02K19/38
Filed: 1948-11-24
Abstract: 672,652. Synchronous machines. NEVILLE, S., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 20, 1949 [Nov. 24, 1948], No. 30546/48. Class 35. An alternator is excited by a main exciter which in turn is excited by an auxiliary exciter consisting of a permanent magnet alternator, part of the output of which is rectified, the other part being used to feed control gear for the prime mover, the auxiliary exciter being mounted on the main alternator shaft. Fig. 1 shows an alternator 1 having its field winding 2 energized by an exciter 3, the field winding 4 of which is energized by a permanent magnet alternator 6 acting as an auxiliary through a rectifier bridge 7 and regulator 5. A synchronous motor driving speed governing mechanism 8 is supplied with A.C. from the auxiliary exciter 6, the frequency of which depends upon the speed of the alternator 1 and therefore this mechanism 8 can check an eventual overspeed of the alternator 1. Preferably, a condenser 9 is included as shown, in order to compensate the inductive reactance of the auxiliary exciter. Specification 672,637 is referred to.
Patent GB-324346-A (GB)
Title: Furnace walls
IPC: F27D1/00
Filed: 1928-10-22
Abstract: 324,346. Reppman, A. Oct. 22, 1928. Walls.-The firebrick lining is directly supported by horizontal metallic members detachably carried on their supports, thus permitting heat movement of the metallic members. Rows of refractory blocks may be carried by metallic members of channel form, and wall sections built thereon are arranged to rest partly on the channel members and partly on the refractory blocks. The supporting means for the wall comprises channel members 1 hooked on to brackets 7 carried up uprights 10 and positioned correctly in relation thereto by heel portions 9. The inwardly extending flanges 2, 3 of the member 1 provide a dovetail groove for the reception of the complementarily-formed ends of blocks 12, some or all of which may be divided into two parts 12<a>, 12<b> along a plane parallel to the inner face of the lower flange 3. The blocks are correctly positioned in the grooves by ribs 19, and are shaped to provide, together with horizontal portions of the flanges 2, 3, supporting surfaces for courses of ordinary firebrick 22. The base portions 4 of the channel members are cut away at intervals to allow the half brick portions 12b to be knocked cut when it is desired to make a replacement. The brackets 7 intermediate the ends of the wall support the ends of two channel members 1<a>, 1<b>, and also a small brick carrier 11, removal of which allows he undivided bricks to be slipped into the grooves of the members 1<a>, 1<b>. An air space 21 may be left between the wall described and an outer wall or casing carried by the uprights 10.
Patent GB-1384751-A (GB)
Title: Arrangement in centrifugal brakes for fishing reels
IPC: A01K89/0155
Filed: 1972-06-29
Abstract: 1384751 Centrifugal brakes for fishing reels ABU AB 29 June 1972 [5 July 1971] 30568/72 Heading A1A [Also in Division F2] A centrifugal brake for a fishing reel comprises a sleeve 13 which is non rotatably mounted on a spool's spindle 3 and which carries a plurality of radially extending pins 15 carrying outwardly slidable centrifugal weights 17 which engage a brake drum (not shown). The sleeve 13 is formed from plastics material and comprises an outer and an inner cylindrical element 25, 19 interconnected by an integral annular part 23. A pin 11 passes through the spindle 3 and engages a slot 27 in the parts 19 and 23, the slot 27 having a restriction 29 to retain the pin after the sleeve 13 has been slid axially onto the spindle. The pin 11 is engaged by notches 9 in a clutch plate 7 of the spool's driving mechanism 5. A flange 25 shields the brake drum from oil thrown up by the clutch 7 or driving mechanism.
Patent GB-851913-A (GB)
Title: Microgram balance
IPC: G01G3/10
Filed: 1957-09-30
Abstract: 851,913. Weighing apparatus. RODDER, J. A. Sept. 30, 1957, No. 30603/57. Class 143 In a balance of the kind in which the beam 86 is mounted on a quartz fibre 108, which is twisted to return the beam to a horizontal position when the pans 20 are unbalanced, the amount of twist being measured to determine the weight of the unbalanced load; the pans are suspended from auxiliary truss constructed beams 90 which are coupled to the beam 86 by quartz fibres 98, 100. The beam 86 carries an index fibre 118 which is illuminated solely by light passing into the housing 10 (Fig. 1) through apertures 34 and which moves across the axes of a pair of lenses 152 arranged to project images of the associated portions of fibre 118 into an eye-piece 18 in such a manner that when the beam is horizontal the images of the fibre portions are aligned. The lenses are individually focussed by knobs 28 and are vertically adjusted by a knob 30. Coarse adjustment of the torsion fibre 108 is effected by direct rotation of a wheel 14 by means of a knob 16 whilst fine adjustment is effected through a friction clutch and gearing (Fig. 6, not shown) under the control of knobs 32 extending from each side of housing 10. The amount of twist is indicated by a dial 192, which is geared to wheel 14, and by a vernier co-operating with indicia on the periphery of the wheel 14. The pans 20 extend below the housing 10 inside pairs of rotatable tubes 22 having apertures 24 which allow access to the pans only when the apertures are aligned.
Patent GB-940773-A (GB)
Title: Improvements in or relating to a method of encapsulating an electrical roll-type condenser
IPC: H01G13/00
Filed: 1960-09-05
Abstract: 940,773. Moisture &c. protection for roll-type capacitors. TELEFONAKTIEBOLAGET L. M. ERICSSON. Sept. 5, 1960 [Sept. 4, 1959], No. 30609/60. Heading H1M. A separator 5 of non-hygroscopic material, e.g. mica, glass, ceramic, soft aluminium or copper foil, foil sandwiched between insulating layers or anodized aluminium foil, is placed between a condenser assembly 2 and the bottom or side walls of a mould 1 before the encapsulating resin 6 is poured in. The mould of polyethylene, teflon, rubber, silicone or siliconeoil-coated metal may be left on the condenser as a permanent outer coating.
Patent GB-857970-A (GB)
Title: Liquid fuel pumps for internal combustion engines
Inventor: KEMP KENNETH ALBERT WALTERS
IPC: F02M59/26
Filed: 1958-09-25
Abstract: 857,970. Fuel injection pumps. C.A.V. Ltd. Sept. 23, 1959 [Sept. 25, 1958], No. 30633/58. Class 102(1). The rotor 5 of a fuel injection pump is supported by rollers 9 which coact with members 8 engaging the piston 7, or directly with the end of the piston, to reciprocate the piston in the cylinder 6 which is supplied with fuel by a feed pump 11 through a passage 13 and ducts 14, 15 in the rotary distributer 4. The rollers 9 are mounted in recesses in an annulus 10 angularly adjustable to vary the timing of injection. The piston discharges through the passage 15 and a valve 16 to the distributing duct 17 ; a helical shoulder 23 coacts with a return duct 24 and the piston is angularly adjustable by means of a rack 20 to vary the quantity of fuel discharged. In an alternative construction the pump is fed through a throttle valve.
Patent GB-159970-A (GB)
Title: Improvements in devices for pressing and stretching garments
IPC: A47G25/72
Filed: 1919-12-08
Abstract: 159,970. Williams, N. F., and Williams, C. H. Dec. 8, 1919. Combined presses and stretchers.-A press of ordinary construction carries on its under side guide brackets 2, 3 for headed bolts 4, which pass through eyes 11 at the end of a bar 10 carried by the lower of two boards 8, comprising a stretching-device; the bolts are adjustably secured to the bar by nuts 7. The stretching of the garment is effected by movement of a lever 20 centrally and adjustably pivoted to the stretching device and engaging at its lower end with a channel formed by plates 18, 19 on the underside of the press; the lower end of the lever may be pointed to engage a recess 22 in the plate 18.
Patent GB-989347-A (GB)
Title: Improvements in or relating to rotary valves for feeding fibrous and like materials
IPC: F16K11/085
Filed: 1961-08-25
Abstract: 989,347. Rotary feeding-valves. BLACK-CLAWSON CO. Aug. 25, 1961 [Aug. 26,1960], No. 30729/61. Heading B8A. In a rotary vane type valve for feeding fibrous material into high pressure digesters &c. the rotor 50, Fig. 2, has alternate shallow and deep pockets 47, 48 so that a high proportion of the rotor material is distributed radially outwardly to resist bending under pressure. The rotor 50 is also mounted with a slight eccentricity within the cylindrical opening 13 of the valve body to compensate for bending of the rotor 50. The roller bearings 72, Fig. 3, of the rotor 50 are eccentrically mounted within bolted end caps 80 in which rotatably adjustable eccentric sleeves 70 permit the direction of maximum eccentricity to be varied. The valve body 10 has a cylindrical wear liner 25 located in alternative positions by radial pins 35 engaged with openings 28 in the liner 25. The arrangement permits the liner to be rotated when worn so as to present new wearing surfaces. The unused pair of openings 28 in the liner 25 is arranged opposite steam vent ports 31, one of which may be plugged according to the direction of rotation of the rotor 50. Alternative steam inlets 56 are arranged at the outlet port 15 and co-operate with deflection plates 57 which direct the steam into the rotor pockets 47, 48 for scavenging material.
Patent GB-884862-A (GB)
Title: Drifting or broaching device for horizontal lathes
IPC: B23D37/00
Filed: 1959-09-09
Abstract: 884,862. Slip couplings. JEANNERET, J. L. Sept. 9, 1959 [Sept. 11, 1958; March 11, 1959], No. 30780/59. Class 80 (2). [Also in Group XXII] A slip coupling in a broaching attachment for a lathe comprises a socket 6, which carries a disc 28 having recesses 33 in which balls 34 are held by spring-pressed pistons 36. The pistons are carried by an annulus 29 secured to a plate 8 fastened to the chuck. Not only can the torque be varied by adjusting the pressure of the springs by nuts 38, but also, two or more pistons can be individually rendered ineffective by eccentrics 42 which are rotated manually to free the associated balls 34.
Patent GB-1263928-A (GB)
Title: Improvements in or relating to frequency synthesisers
Inventor: MARTIN DAVID JOHN
IPC: H03L7/23
Filed: 1968-06-27
Abstract: 1,263,928. Frequency synthesizers. PLESSEY CO. Ltd. 18 June, 1969 [27 June, 1968], No. 30796/68. Heading H3A. The invention relates to a frequency synthesizer of the type in which the desired frequency is obtained over a line 2 from a slave oscillator 1 of variable frequency. The output from oscillator 1 is divided down an appropriate number of times in a variable divider 3 and compared in a frequency comparator 4 with the frequency derived from a reference frequency source 5 via a fixed ratio divider 6, the output from comparator 4 being used to control the frequency of oscillator 1. If, in such an arrangement, the steps which can be set up on variable divider 3 are made very small, so as to obtain a very fine control of the frequency of the oscillator 1, the short time stability of the arrangement is low. The invention avoids this by using a variable divider 3 providing only coarse steps, the division ratio incorporating the fine steps being set up on a second variable divider 10. The output from divider 10 is compared in a second frequency comparator 8 with the output from a fixed master oscillator 9, the output from comparator 8 being used to pull the frequency of reference frequency source the requisite amount to bring the frequency of slave oscillator 1 to the desired frequency. In an example oscillator 1 is to be set to 45À4511 MHz, reference frequency source 5 operates at approximately 5 MHz, fixed divider divides by x 500 and variable divider 3 is set to x 4545 so that comparator 4 obtains two inputs each approximately 10 KHz. The variable divider 10 is set to x 454511 and master oscillator 9 operates at 100 Hz, comparator 8 having two inputs at this frequency.
Patent GB-923637-A (GB)
Title: A device for the variation of the spatial position of an article to be treated under thermally-insulating conditions
IPC: C23C14/50
Filed: 1959-09-09
Abstract: 923,637. Coating by vapour deposition. S. GESSNER, and F. GRASENICK. Sept. 9, 1959 [Sept. 9, 1958], No. 30820/59. Class 82. [Also in Group XX] In apparatus for coating metals or non-metals by vapour deposition or for treating articles with electrons, X-rays or ultraviolet rays, the position of the article to be treated is varied in a device comprising a mounting capable of " up and down " movement, a support capable of rotation about at least two axes and movably connected to the mounting and a mechanism for effecting the continuous movement and rotation, the device being at least partly enclosed in a thermally insulating jacket. Inside a double-walled insulating jacket E a rotatable support A carried on a mounting B is rotatably mounted in stirrup 11 by an axle 10 and stub axles 12, 12<SP>1</SP> are rotatably mounted in mounting B. A pinion 15 secured to axle 12 engages worm gear 16 secured to driving spindle D and a pinion 17 and pulley 18 are secured to axle 12<SP>1</SP>, the pinion 17 engaging with a worm gear 22 secured to driving spindle D<SP>1</SP>. A belt 19 passes over idler pulleys 20 and driving pulley 21 secured to support A. Spindles D, D<SP>1</SP> make sliding contact with mounting B via bushes 23, 23<SP>1</SP> and spindles C, D and D<SP>1</SP> rotatably mounted in holders 24, 25 are driven by motors M1, M2, M3. The spindles C have spiral threads meshing with threaded bushings 26 secured to B for raising and lowering B and the device permits movement of the support A in directions shown by arrows 1, 2 and 3. The insulating jacket E may be placed in an evacuated vessel and the annular space between the walls of jacket E may be evacuated or filled with a heating or cooling medium.
Patent GB-1514999-A (GB)
Title: Respiratory valve especially for anaesthetic circuits
IPC: A61M16/20
Filed: 1975-07-24
Abstract: 1514999 Respiratory valves INSTITUTUL ONCOLOGIC BUCURESTI 24 July 1975 30943/75 Heading A5T A respiratory valve for anaesthetic circuits in resusatation and anaesthetic apparatus, comprises a V-shaped arrangement of intersecting arms b, d, a short tube a connected to the intersecting ends of the arms, a pair of connection pieces 2, 5 connected to other ends of arms b, d respectively, and a pair of shutters 3, 4 at the said other ends of arm b, d, each shutter comprising a fixing ring and a membrane partially attached thereto, the shutters being arranged so that shutter 3 permits flow towards tube a whereas shutter 4 permits flow away from tube a. The tube a may be directed at right angles to arms b, d or be in the same plane but directed away from arms b, d, Fig. 3 (not shown). The shutters are formed from silicone rubber while the arms and connection pieces may be formed from metal or plastics.
Patent GB-1080940-A (GB)
Title: Analysing apparatus
Inventor: CHAWNER PHILIP MEREDITH HAMPDE
IPC: G01N27/34
Filed: 1965-07-21
Abstract: 1,080,940. Electro-physical measurement. HAMPDEN TEST EQUIPMENT Ltd. June 24, 1966 [July 21, 1965], No. 30987/65. Heading G1N. In apparatus for analyzing ozonized air by bubbling it through a buffered solution of potassium iodide in which are immersed a platinum and a mercury electrode, and in which the iodine ions liberated by the action of the ozone on the electrolyte then react with the mercury to form mercurous iodide, the quantity of electricity thus produced being measured by coulometry, the surface area of mercury is increased by making the electrode of copper gauze (16) thinly coated with mercury.