baber/WOPTO huggingface dataset:
Patent GB-1140583-A (GB)
Title: Fluid-pressure servomechanism
Inventor: THAYER WILLIAM JOHN
IPC: F15B9/17
Filed: 1966-01-18
Abstract: 1,140,583. Fluid-pressure servomotor systems. MOOG Inc. Jan.18, 1966, No.35191/68. Divided out of 1,140,582. Heading G3P. A servomechanism comprises a valve 1A controlling an actuator 17 in response to electrical signals fed to a solenoid 18. The solenoid actuates a flapper 21 controlling the leak from nozzles 19, 20 to provide a pressure differential in chambers 43, 48 at the ends of a spool valve 28. The spool valve controls the flow of fluid to and from chambers 56, 58 of the actuator 17 and a feedback is provided between the actuator and flapper by spring 66 and between the spool and flapper by spring 68. Positive and negative pressure feedback is also provided in respect of the load as measured by the pressures in the passages 60, 62 leading to the actuator. The pressure in passage 60 is connected through passage 91, 84 to chamber 81 and through restrictor 92 to chamber 86 which is connected to chamber 73. Similarly the passage 62 is connected to chambers 80, 88 and 74. A summation piston 72 has areas subjected to the pressures in the chambers 73, 74, 80, 81. The restrictions 92, 94 and piston 86 provide a low pass filter and the areas 71, 78 of the summation piston 72 are preferably larger than the areas 79, 79' thus the piston 72 provides a positive feedback to the flapper through the spring 96 in response to the mass or inertia of the load moved by the actuator. The Specification also describes other methods of action of the pressure feedbacks which are described and claimed in Specifications 1,140,582, 1,140, 584 and 1,140, 585.
Patent GB-1434045-A (GB)
Title: Liquid droplet recording apparatus
IPC: B41J2/10
Filed: 1973-07-24
Abstract: 1434045 Ink droplet printers INTERNATIONAL BUSINESS MACHINES CORP 24 July 1973 [30 Aug 1972] 35199/73 Heading B6F [Also in Divisions G4-G6] An ink droplet printer uses ferrofluid ink, i.e. a colloidal suspension of submicron-sized ferrite particles in a carrier fluid such as kerosene, water or silicone based fluid, which is deflected to the required degree by magnetic fields. Polepieces producing a magnetic field gradient, e.g. defining a wedge shaped gap 34 are employed. A plurality of deflecting fields may be placed in series to deflect the droplets to the required degree.
Patent GB-522034-A (GB)
Title: Improvements in or relating to dry electrolytic condensers
IPC: H01G9/10
Filed: 1938-12-02
Abstract: 522,034. Electrolytic condensers. HUNT, Ltd., A. H., and FISHER, J. H. (Schnoll, N.). Dec. 2, 1938, No. 35225. [Class 37] Leads from the plates of an electrolytic condenser pass through a closure means for the container, which includes a lid, a resilient gasket pressed into leak-proof contact with the container, and with the lid by flanges on the leads, there also being a locating plate for stiffening the leads. In the example, Fig. 1, the flanging over of the top part of the upper shouldered part of the container 10 forces together an assembly comprising a rubber sheet 19, an insulating locating plate 20, spacer ring 21 and cover 22, so as to close the joints between the cover and container and between metallic connectors 15 surmounting terminal rods 13 and the plate 20. Connector lugs 23 are riveted to the pins 18 on top of the'connectors 15. In the modification, Fig. 4, the lugs 50 are directly attached to the terminal posts 44, the joint being sealed by insulating sleeves 51, each with a flange 52. In this case the closure comprises a metal locating plate 46, spacer 47 and cover 49 associated with a rubber sheet 48. In a further modification the spacer ring 47 is integral with the rubber sheet, and in another, the container has a two-step shoulder on the lower of which the locator rests and on the upper the rubber sheet and cover plate, the spacer being dispensed with.
Patent GB-343912-A (GB)
Title: Improvements in or relating to devices for recording periods of rest or motion of internal combustion engines
IPC: G07C5/06
Filed: 1929-11-19
Abstract: 343,912. Recording rest or motion. HIBBERT, H., 144, Victoria Street, Newton, Hyde, Cheshire, and HOWITT, F., 51, Moreton Street, Chadderton, Oldham. Nov. 19, 1929, No. 35278. [Classes 106 (iii) and 106 (iv).] Device for recording rest or motion of internalcombustion engines comprises a diaphragm 17 acted on through the pipe 25 by pressure variations in the induction pipe, oil supply or exhaust of the engine and by a spring 20 and having a rod 19 fixed to it which engages a rod 22 pivoted on the upper part of a bracket 21 and carrying the spring- urged stylus 23 for marking on the paper disc 15, resting on the non-resilient plate 16 and mounted on clockwork mechanism 14, when the pressure on the diaphragm falls due to the engine running. Modifications are described in which the diaphragm 17 is actuated by increased pressure from the oil pump of the engine and in which the stylus 23 is connected to a Bourdon tube actuated by decrease or increase of pressure and in which outer and inner lines corresponding to rest or motion of the engine are marked on the disc 15 by the stylus 23 being connected to a piston or Bourdon tube actuated by the fluctuations in pressure. The above apparatus can be combined with means for recording motion of the vehicle, Fig. 4, comprising a swinging rocker arm 26 pivoted at 27 and adjustably carrying by means of the screw 29 the stylus arm 28 adjustable angularly and carrying a light spring 30 carrying the stylus 31 so that this stylus and the stylus 23, guided by member 23a, for recording rest or motion of the engine can be brought close together for recording on the disc 15. Various methods of mounting the stylus are shown in Figs. 5, 6, and 7.
Patent GB-1505618-A (GB)
Title: Memory arrays
IPC: G11C11/404
Filed: 1976-08-25
Abstract: 1505618 Memory array INTERNATIONAL BUSINESS MACHINES CORP 25 Aug 1976 [22 Sept 1975] 35296/76 Heading H3T [Also in Division H 1 A memory array has at each intersection of word and bit lines a JUGFET of the type having a gate surrounding the channel, at least some of which are coupled between the word and bit lines. In a Read- Only Memory, fig. 10 used in grounded gate mode, bit lines 80, 90 contact buried N layers 86, 87, have circular N channels 88a-d, each forming a JUGFET channel, the surrounding P material forming the gate, the upper and lower ends of a channel 88 comprising the source and drain terminals. Programming is by selectively etching apertures in the overlying oxide layer 93 to contact a word line, e.g. 91. In a Read/Write memory fig. 1, capacitive coupling is used between the JUGFET channel and the word line, a capacitor comprising having a thin layer of oxide 56, fig. 5, between the word line 29 and the channel 55, logic levels being indicated by the presence or absence of charge on a capacitor. The contents of a word are read by sensing the flow of current along a bit line 10, 20, fig. 1 into a capacitor using sense amplifiers 27, 28 when the JUGFET is enabled by grounding 33 or 34. Reading is destructive and the sense amplifiers must have means for re-writing the word if a non- destructive memory is necessary.
Patent GB-1082259-A (GB)
Title: Lathe tailstock
IPC: B23B23/00
Filed: 1964-08-28
Abstract: 1,082,259. Tailstocks. ESCHER WYSS A.G. Aug. 28, 1964 [Oct. 14, 1963], No. 35355/64. Heading B3T. [Also in Division F2] A lathe tailstock comprises a rotatable sleeve 1, and a centre 2 secured in a body 3, non rotatable, but axially slidable in the sleeve. Body 3 is resiliently supported in a cap 5 secured to the sleeve by sets of cup springs 7. Sleeve 1 is rotatably supported in hydrostatic bearings 9, 10 and bearing 9 is pivotable about a pivot 12. A piston 14 is secured to sleeve 1, and pressure fluid is supplied from a continuous supply pump 18 to cylinder 17. A spindle 21 is screwed into a cap 16, by a worm and wheel drive 26, so that the pressure in cylinder 17 can be varied, a base 29 in the spindle being provided for bleeding the fluid. Piston 14 has a plate 31 which slidably carries a piston 33, and is normally urged to the right by fluid which passes through a passage 34.
Patent GB-1220698-A (GB)
Title: A machine tool with a mechanism for driving the spindle
Inventor: OLLEARO GIORGIO
IPC: D02J13/00
Filed: 1968-07-24
Abstract: 1,220,698. Machine tool details. ING. C. OLIVETTI & C., S.p.A. 24 July, 1968 [29 July, 1967], No. 35417/68. Heading B3B. A machine tool comprises a base in which is slidably mounted a headstock 16 that comprises a tool magazine drum 17, a slidable sleeve 39 and a rotatable spindle 23 having a chuck 20 for receiving tools in tool carriers 19 from the drum 17. The sleeve 39 is advanced to accept a tool carrier 19 and to perform a machining operation by means of a lead screw 41 rotating within a re-circulating ball nut 42 that is fixed to the moving parts that support the spindle. The spindle 23 is rotated by a motor driven splined shaft (33) (Fig. 4, not shown) parallel to the said spindle 23 axis and the axis of lead screw 41. A gear train (35), (36), 37 connects the shaft (33) to the splines 38 of the spindle 23, the said gear train being movable axially as the sleeve 39 is advanced and retracted to keep the torsional deflections of the spindle drive constant. When extra long tools are held in the drum 17 the headstock 16 may be retracted a fixed amount by an hydraulic cylinder and guide arrangement (101), (102), (106) so that the tool does not strike a workpiece on a work-table (15) (Fig. 1, not shown). The position of the headstock may be manually adjusted by a screw threaded shaft (113) and hand wheel (114) connected to the cylinder (101). The chuck is operated by an hydraulic device (Fig. 3, not shown) that acts on a cap 66 to move a rod 64 against a return spring 67. The chuck comprises locking balls 83 that either seat in recesses in a reduced portion 78 of the rod 64, or are pushed outwards as the portion 78 is moved relative to a bush 81. In operation the spindle 23 is advanced on to a taper shank 85 of a tool carrier 19, the bush 81 passing into a recess in the end thereof, the chuck is operated to lock the balls 83 into dimples 86 in the recess, and the tool carrier is pulled into the chuck socket 20 by the spring 67 after it has been released from the drum 17. Positive driving keys 46 are provided in the end of the chuck. The headstock may include a graduated scale and pointer (130), (131) to indicate the position of the sleeve 39. The machine tool may be programme controlled by perforated or magnetic tape.
Patent GB-465293-A (GB)
Title: Improvements in or relating to tobacco manipulating machines
IPC: A24C5/18
Filed: 1935-12-21
Abstract: 465,293. Cigarette-making and like machines. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. Dec. 21, 1935, No. 35452. [Class 130] A continuous tobacco filler, either for making cigarettes or for cutting into sections for insertion into packages, has portions of greater mass at predetermined intervals along its length ; it is formed by feeding a stream of tobacco through a confining passage which determines the cross-sectional area of the filler and removing the tobacco from the opposite end of the passage at a slower speed than that at which tobacco is fed into the passage. As shown in the Figure, tobacco falling from one end of a feed shoot on to a belt 7 is spaced into heaps by a distributing element 9, as described in Specification 460,245 before passing beneath vanes 8 which impart a forward movement to tobacco falling down the remainder of the shoot. The tobacco on the belt 7 is compacted, as described in Specification 440,182, while passing through a confining passage 13 on to a paper web 11 which moves slower than the belt 7. The portions of greater mass are spaced so as to produce cigarettes having denser portions at one or both ends. In modified constructions, spaced heaps of tobacco are deposited on the belt 7 before or after it passes beneath a hopper. Specification 249,575, [Class 130], also is referred to.
Patent GB-412209-A (GB)
Title: Improved process for the preparation of activated or absorbent carbon or decolourising carbon
IPC: C01B32/336
Filed: 1932-12-16
Abstract: In the preparation of active carbon, a naturally occurring carbonaceous material such as coal, cannel, lignite, peat or wood is first chlorinated, then briquetted by pressure alone, carbonized, and finally activated.  Chlorination may be effected while the coal &c. is suspended in a non-reactive liquid, e.g. carbon tetrachloride or by passing the chlorine through the finely divided coal, or by letting the coal fall repeatedly through the chlorine: the temperature of chlorination should not normally exceed 100 DEG  C., cooling being effected if necessary. The suspending liquid is recovered from the chlorinated product by distillation.  Hydrogen chloride and chlorine and any residual suspending liquid are removed by reducing the pressure, by heating at atmospheric or reduced pressure, or by washing with water; inorganic matter is also removed by washing with water.  In an example, air-dried bituminous coal is chlorinated while suspended in carbon tetrachloride and, after removal of the tetrachloride, is heated to 80 DEG  C. under a pressure of 15 millimetres of mercury; the product is briquetted, carbonized at 900 DEG  C., and activated.  In a second example, gas coal is ground in a tube mill through which chlorine is passed, the temperature being kept at 60 DEG  C. by water cooling.  The product is pressed into tablets, carbonized at 850 DEG  C., and activated at 800 DEG  C. by steam, preceded or not by treatment at 90 DEG  C. with nitrogen saturated with p  moisture.  According to the Provisional Specification the chlorine may be produced in the suspending liquid.
Patent GB-512742-A (GB)
Title: Improvements in laboratory platinum crucibles and methods of producing same
IPC: B01L3/04
Filed: 1938-12-08
Abstract: 512,742. Alloys; heat treatment. STREICHER, J. S., and AMERICAN PLATINUM WORKS. Dec. 8, 1938, No. 35866. [Classes 72 and 82 (i)] [Also in Groups III and XXII] A platinum laboratory crucible of not more than 60 c.c. content has a thickness of between 0.5 and 1.5 mm. and is preferably 0.62 mm. thick. It is formed by rolling a platinum sheet down 75 per cent., soft annealing it at 800‹C., pressing or spinning the sheet cold over a steel form and annealing the shell at 800‹C. It is then hammered to the finished crucible and is heated to 1,000-1,600‹C. for about 15 minutes, gently hammered and heated to 1,200-1,600‹C. for about 1-2 hours to promote a crystal structure in which the crystals are as thick as the crucible walls. The platinum may be alloyed with 0.3 per cent. of iridium or up to 4 per cent. rhodium.
Patent GB-468212-A (GB)
Title: Improvements in and relating to the classification of materials
IPC: B07B4/04
Filed: 1935-12-27
Abstract: 468,212. Pneumatic separating. CAREY, W. F., BOSANQUET, C. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 27, 1935, No. 35877. [Classes 82 (ii) and 117] Powdered or granular material is separated by permitting it to fall through a duct up which fluid is passed, the duct being composed of a series of limbs relatively inclined and each provided on its lower surface near the junction of the limbs with a projection for rendering uniform the cross-section of the duct. In the form shown, the material entering at 1 encounters a rising stream of air entering at 4 and is thrown into the centre of the duct by the baffle 3 at the junctions of the limbs 2.
Patent GB-843281-A (GB)
Title: Improvements in or relating to internal combustion engine fuel injection nozzles andmountings therefor
Inventor: HAAS HERBERT H
IPC: F02M61/10
Filed: 1957-11-19
Abstract: 843,281. Fuel injection nozzles. CONTINENTAL MOTORS CORPORATION. Nov. 19, 1957, No. 35973/57. Class 7(3). A;fuel injection nozzle 19a is held in position in an insert 26 in a bore 25 in the cylinder head by a sleeve 40, the end of the insert being reduced at 25a and flanged at 26a to lock the insert in position. The insert is cast in position into an aluminium cylinder head and is of a material of smaller coefficient of expansion than the cylinder head so that at operating temperatures the flanged end of the insert holds a portion of the cylinder head material under compression. The injection nozzle construction is identical with that described in Specification 832,578.
Patent GB-367064-A (GB)
Title: Improvements in ventilators for automobiles and other vehicles
IPC: B60H1/34
Filed: 1930-11-29
Abstract: 367,064. Ventilators for vehicles. PRICE, W. H., of Shepshed Lace Manufacturing Co., Great Central Road, Loughborough, Leicestershire. Nov. 29, 1930, No. 35980. [Class 137.] A ventilator for vehicles comprises an elongated body portion provided with slotlike air passages which in section radiate from a longitudinal centre line and extend the whole length of the body portion. As shown in Fig. 1, the ventilator is positioned at the base of the windscreen 2 and has a crescent-shaped body portion 3 formed with radiating air passages 4. Alternatively the ventilator may be positioned above the windscreen. In a modification the ventilator is approximately semicircular in section with parallel air passages extending inwardly to join the inlets of the radiating passages 4. In another modification, Fig. 4, the air passages are formed by a number of spaced plates 5 of cranked or angular formation. In a further modification, Fig. 5. the ventilator comprises a series of radiating flat plates 8 adjustably mounted in slotted brackets 10, the air passages-being formed between the plates. Shutter means may be provided for controlling the air openings and the ventilator may be associated with an air inlet duct installed, for example, on the vehicle roof.
Patent GB-872924-A (GB)
Title: Improvements in or relating to resilient padding for laundry and textile finishing machinery
Inventor: WILSON ROBERT
IPC: D06F83/00
Filed: 1956-11-26
Abstract: 872,924. Ironing-machines. TULLIS Ltd., D. & J. Feb. 26, 1958 [Nov. 26, 1956], No. 36023/56. Classes 42 (2) and 138 (2). A roller for use in a laundry machine or a textile finishing machine incorporates resilient padding 4 consisting of moulded flexible tubing coiled closely upon its perforated hollow cylindrical surface and arranged to be internally pressurized. Preferably the tubing has checkedout openings and the roller contacts a heated concave bed 2 and is built up of a calico covering 3 around the padding 4 of e.g. silicon rubber, neoprene or like synthetic plastic, having an inlet valve 6 and a release valve 7 to admit pressure fluid thereto. Spacer-forming studs afford the checked-out openings, which can be otherwise formed, and the cylinder 8 is attached to a heated drum 9 by struts. Articles are fed between the bed 2 and the roller 1 held in contact by pressure at a bearing 13, on which is rotatably mounted a gudgeon 12 supported by plates 10 and 11, to which is attached a dished member 14 (by a bracket 15), on which are mounted a felt sealing ring 16, felt disc 17 and suction conduit 18, whereby moisture is withdrawn. Specifications 374,749, 378,820 and 455,941 are referred to.
Patent GB-983609-A (GB)
Title: Di-imidazoles and process for their manufacture and use
IPC: C08K5/3447
Filed: 1962-09-21
Abstract: The invention comprises diimidazoles of the formula <FORM:0983609/C2/1> in which Y1 and Y3 each represent a hydrogen atom or an alkyl group with 1 to 4 carbon atoms, Y2 and Y4 each represent a hydrogen or chlorine atom or an alkyl or alkoxy group with 1 to 4 carbon atoms, X is an oxygen or sulphur atom. The compounds are prepared by reacting a compound of formula <FORM:0983609/C2/2> with acrylonitrile (at its boiling-point) in the presence of a basic catalyst.  The preferred catalysts are amines.  Numerous examples are given and the products are useful as optical brightening agents.ALSO:Natural and synthetic fibres are optically brightened by use of a compound of the formula:-  <FORM:0983609/D1-D2/1> in which Y1 and Y3 each represent a hydrogen atom or an alkyl group with 1 to 4 carbon atoms, Y2 and Y4 each represent a hydrogen or chlorine atom or an alkyl or alkoxy group with 1 to 4 carbon atoms, X is an oxygen or sulphur atom. The compounds may be used in admixture with dyestuffs, bleaches, dressing agents, e.g. starch or synthetic dressing agents, or with detergents, and in amounts of from 0.01% to 3%.  Fibres which may p  be treated are native or regenerated cellulose, e.g. cotton, especially in the presence of acids or viscose rayon, semi- or fully synthetic fibres, e.g. cellulose acetates, polyamides (nylon), polyacrylonitrile, polyvinyl chloride, polyolefines.
Patent GB-888317-A (GB)
Title: Improvements in television cameras
Inventor: JACKSON DONALD
Filed: 1959-10-26
Abstract: 888,317. Stereoscopic television. PYE Ltd. Oct. 26, 1960 [Oct. 26, 1959], No. 36173/59. Class 40(3). In a stereoscopic television camera comprising two cameras, means are provided for adjusting the squint angle of the two cameras in dependence upon the setting of the focus control. In Fig. 2, two cameras 1 and 2 include pick-up tubes mounted on carriages 5 for sliding movement towards and away from lenses under the control of a camera focus mechanism 3. In addition, each camera is mounted for rotation about an axis normal to the common plane of the optical axes, the axis bearing located approximately mid-way along the lens, at one end of the lens or through the face-plate of the tube. A spacing bar 7 having a roller-follower 8 at each end is fixed to the camera support assembly and engages a wedge-shaped cam 8 on each carriage. When the carriages are located closest to their respective lenses so as to focus at infinity, the two cameras, and hence their optical axes, are substantially parallel as shown in Fig. 2. As the carriages are moved rearwardly to bring the focus nearer, 'the action of the spacing bar is to rotate each camera about its axis as shown in Fig. 3, thus adjusting the angle of squint. In another arrangement (not illustrated) the two cameras are mounted with their optical axes parallel and the lenses are mounted for movement transversely of these axes towards and away from each other.
Patent GB-1164570-A (GB)
Title: Improvements in or relating to Covers for the Slideways of Machine Tools
IPC: B23Q11/08
Filed: 1968-07-30
Abstract: 1,164,570. Protecting machine tool slides. KABELSCHLEPP G.m.b.H. 30 July, 1968 [21 Dec., 1967], No. 36289/68. Heading B3B. A protective cover for a machine tool slideway comprises several telescopic cover boxes each having externally of its rear wall 7 a collector groove 15 arranged to catch and drain away any liquid and/or dust penetrating beyond a lip seal 12 and wiper strip 11. The groove may be formed, as shown, by a spacer strip 13 and splash wall 14 or by an L-shaped strip which abuts or projects close to the underside of the next largest cover or by a crease or groove machined in the cover walls (Fig. 4, not shown).
Patent GB-1064919-A (GB)
Title: Brake
IPC: B60T1/06
Filed: 1965-08-25
Abstract: 1,064,919. Drum brake. CLARK EQUIPMENT CO. Aug. 25, 1965 [Nov. 3, 1964], No. 36517/65. Heading F2E. A lift truck is provided with a brake operated by the lowering of the handle 24. The brake comprises a drum 34 secured to an intermediate shaft 32 of the drive to wheel 18, pivotally mounted brake shoe levers 38, 40, a bell-crank lever 64, 66 pivoted at 62 to lever 40, the arm 64 extending towards the brake drum being connected to the lever 38 by a link 68 and so arranged that release of the brake first moves the lever 38 away from the drum until the lever abuts a stop 52, the other lever 40 then moving from the drum. During brake application the reverse sequence occurs. Movement of the bell-crank lever to release the brake, on moving the handle clockwise from the position shown, is accomplished by the engagement of a follower 76 on lever arm 66 by a cam 78 rotated by the handle 24. After full release of the brake the end 80 of the lever arm 66 actuates a microswitch to energize a driving motor. If the handle is moved to a fully horizontal position cam 78 no longer engages the follower 76 and the spring 50 re-applies the brake.