baber/WOPTO huggingface dataset:
Patent GB-1435354-A (GB)
Title: Springs
IPC: F16F9/30
Filed: 1973-04-10
Abstract: 1435354 Elastomeric springs SOC D'EXPLOITATION DES RESSORTS AUTOAMORTISSEURS JARRET 10 April 1973 [19 April 1972] 17020/73 Heading F2S In a piston-cylinder fluid spring of the type which uses an elastomer as the fluid, differential contraction of the cylinder 2 and the elastomer 1 as the temperature falls is compensated for by providing in the elastomer a body 4 whose volume increases as the temperature falls, within a certain temperature range. The body 4 is water in a sealed deformable bag, its volume increasing from 4 C. down. The presence of the water ensures that the cylinder is kept full of fluid over this range, and so the spring characteristic does not alter with temperature.
Patent GB-632723-A (GB)
Title: Improvements in or relating to electrically driven power transmission systems
IPC: H02K7/102
Filed: 1947-06-27
Abstract: 632,723. Control of motors. WATSON, C. D., and READ, F. W. June 27, 1947, No. 17030. [Class 38 (iii)] [Also in Group XXXIV] An electricallydriven power transmission system comprises an electric motor, centrifugallyoperated braking means sensitive to and adapted to limit the speed of the motor, and electromagnetic means adapted to oppose the centrifugal action of such braking means with a force proportional to the current being taken by the motor. A reversible electric motor 1 drives a non-magnetic shaft 2 upon which is mounted a member 11 carrying centrifugal brake plungers 3. An armature 9, which is slidable along the shaft but non- rotatable therewith, is coupled to the members 3 by means of bell-crank levers 14 which are pivotally mounted on the member 11. Compression springs 18 exert a force through an armature 10, a sleeve 20, the armature 9, and levers 14 to the brake plungers 3 so as normally to apply the brake. The simultaneous application of voltage to the motor and to a coil 13 causes the armature 10 to move and overcome the effect of the compression springs. During rotation the centrifugal force upon the members 3 is opposed by a force which is substantially proportional to the motor current. This force is provided by means of a coil 12 which is connected in series with the motor and which acts upon the armature 9. When the motor-voltage is removed the springs 18 are effective to provide full braking-torque. The shaft 2 is coupled to a load-shaft 22 which carries a member 23 receiving the end of the shaft 2 and having bifurcations 25 which embrace the member 11. Drive between the members 11 and 23 is effected through surfaces 26 on the former which alternatively cooperate with inclined surfaces 27 and 28 on the latter according to the direction of rotation. The inclined surfaces of the member 23 provide a desired degree of lost-motion between the shafts 2 and 22. The member 23 carries centrifugal brake shoes 37 which are slidable between pins 32 and 33, and are urged to a braking-position by leaf-springs 38 opposed by tension springs 29. Additional braking- effect is afforded by the brake shoes 37 pivoting about the leading guide-pin in the direction of motor-rotation. When the shafts 2 and 22 rotate together the braking-force exerted by the shoes 37 aids that of the members 3 but the springs 29 prevent full application of the braking-force of the shoes 37. If the alignment of the shafts is altered due to a following load, for example, the springs 29 offer minimum resistance against application of braking by the shoes 37 and excessive speed of the shaft 22 is prevented. The reduction of motor-load reduces the motor-current and increases the braking-effect of the members 3.
Patent GB-1399443-A (GB)
Title: Clock devices
IPC: G04G5/00
Filed: 1973-04-10
Abstract: 1399443 Electronic timepieces CASIO COMPUTER CO Ltd 10 April 1973 [13 April 1972] 17035/73 Heading G3T Relates to a time setting or correcting arrangement in an electronic timepiece. In normal operation timing pulses from a generator 16 Fig. 2 are counted by a counter 18 which produces a carry pulse every second to a seconds counter 21. The latter sends a carry pulse every minute to minute counter 23 which sends a carry pulse every hour to hours counter 24. The outputs of counters 23, 24 are applied via respective decoders 25, 26 and drivers 27, 28 to operate a digital or analogue display. To correct the time indicated, a key 14 is depressed causing the resetting of the counter 18 and clearing the seconds counter 21. At the same time a signal from key 14 acts as a minutes stepping signal to step the minutes counter 23 by one step. AND gates 17, 20 are blocked, the counting operation of counter 18 is stopped and input to seconds counter 21 interrupted. The key 14 is released and counting recommenced when the time displayed agrees with a standard time. To correct for more than one minute the key is repeatedly depressed and released. Fig. 3 (not shown), illustrates a signal generating circuit which is used in conjunction with the key 14 to supply a stepping signal to the minutes counter a predetermined interval after the key 14 is depressed. Fig. 4 (not shown), illustrates a delay circuit for stepping the minutes counter a predetermined interval after the key 14 is released. The display may be digital and employ liquid crystal elements or alternatively may be analogue and comprise sixty "minute" display elements and twelve "hours" elements arranged around the periphery of a circle.
Patent GB-403380-A (GB)
Title: Improvements in or relating to means for controlling the fuel and air for supercharged internal-combustion engines
IPC: F02D9/00
Filed: 1932-06-16
Abstract: 403,380. Regulating. FEDDEN, A. H. R., and BRISTOL AEROPLANE CO., Ltd., Filton House, Bristol. June 16, 1932, No. 17077. [Class 7 (vi).] In engines with supercharging or with a high compression-ratio, and having separate regulating-valves for fuel and air, manual means are provided in connection with both valves, means actuated by the pressure in the induction pipe also operate on both valves, while an altitude control operates on the fuel valve only. The invention is especially applicable to engines in which liquid fuel is injected into the cylinders or into the induction pipes. A lever 10, Fig. 2, connected to the pilot's control is also connected by an arm 11 and toggle links 12, 13 to an arm 14 on a shaft 15 which operates the air-regulating valves, and which also carries another arm 14, Fig. 3, which is connected by toggle links 16, 17, bell crank 18, 19, and a rod 20, to the fuel-pump control 21. The automatic device 34 actuated by induction-pipe pressure is connected by a rod 36, arms 25, 26, and rod 24 to the centre of the toggle links 12, 13, so that the shaft 15 is actuated at low altitude to reduce the permissible opening of the air valve and also the fuel adjustment. In addition to this, a barometric device 35 is connected by rods 37, 38, arms 28, 29, and a rod 27 to the centre of the toggle links 16, 17, so as to adjust the fuel pumps automatically at all altitudes in accordance with the barometric pressure.
Patent GB-723423-A (GB)
Title: Improvements in or relating to packages for ferrous objects
IPC: B65D83/10
Filed: 1951-07-18
Abstract: A method of preventing corrosion of a packaged ferrous article, e.g. a razor blade, by an acidic atmosphere, comprises incorporating in the package in spaced relationship to the article a sodium salt of an aromatic acid, e.g. sodium benzoate, salicylate or phthalate, which in such atmosphere yields an acid providing a corrosioninhibiting film on the article.  The amount of the salt present may vary from 0.05 to 0.25 grms.  An acid adapted to convert 25-75 per cent of the sodium salt to active acid may also be incorporated, e.g. 0.1 grm. of sodium benzoate and 0.021 grms. of acetic acid may be used.  The active acid may also be incorporated, in which case the amount of sodium salt is reduced, e.g. 0.005-0.1 grms. of benzoic acid and 0.025-0.125 grms. of sodium benzoate may be used.  The razor blade may be treated before packaging, as described in Specification 720,276.
Patent GB-631035-A (GB)
Title: Improvements in footwear knitted or made of knitted fabric
IPC: D04B11/28
Filed: 1947-06-28
Abstract: 631,035. Stockings. DOUGHTY, J. C. June 28, 1947, No. 17106. [Class 141] [Also in Group VIII] The toe 7 and heel 8 of a stocking or sock, and if desired, the sole 6, have the knitted loops drawn in the opposite direction as compared with the loop formation of the remainder of the stocking or sock. The toe and heel, and sole, may be knitted integrally with the remainder of the article, or may be knitted separately and inserted therein. In the case of a broad rib stocking or sock, the toe, heel and foot are knitted with the loops drawn in the reverse direction as compared with the broad rib. The portion 9 of the stocking or sock immediately above the heel may also be knitted in the same way as the heel and toe.
Patent GB-257378-A (GB)
Title: Improvements in or relating to apparatus for cleaning boiler tubes
IPC: F28G1/12
Filed: 1925-07-03
Abstract: 257,378. Stenning, H. A. July 3, 1925. Cleaning, fluid-pressure processes for.-A sandblast apparatus for cleaning the fire-tubes of locomotive and other boilers, whether or not they are under steam, is mounted e.g. on the backplate or fire-door of the locomotive boiler so as to project through the back water space 1, 2, Fig. 1, and comprises a casing 4, Figs. 1 and 3, sand-hopper 5, ejector 6, steam-supply pipe 7, air-admission openings 8 or 8<a>, discharge nozzle 9, handle 10, and sand-control valve 11 or 11<a>, the apparatus being mounted on a suitable bracket 12 in such a way that its direction can be varied by operating the handle 10. In the form shown in Fig. 1, rotation of the handle 10 opens both the sand valve 11 and a steam valve 21, while in the device shown in Fig. 3, the sand valve 11<a> and the steam valve are separately operated.
Patent GB-822095-A (GB)
Title: Improvements in computing devices
Inventor: JR JOHN PRESPER ECKERT
IPC: G06F7/38
Filed: 1957-05-30
Abstract: 822,095. Circuits employing bi-stable magnetic cores. SPERRY RAND CORPORATION. May 30, 1957, No. 17145/57. Class 40 (9). An exclusive OR gate comprises a core with a power winding 21 energized by a train of pulses in one sense and energized in the other sense by a source of D.C. in the intervals between pulses so as to switch the core to and fro between its remanent saturated states, two input windings, 22 and 23, being such that an input to either inhibits switching of the core in one sense so that the consequent low impedance of the winding 21 causes the generation of an output but the coincidence of inputs produces no inhibition and no output. As shown, an alternating source of square waveform seen at A in Fig. 3 is applied to terminal 24 so that positive half-cycles energize winding 21 over diode D3 and resistor R2 to negative D.C. source- V and, if only magnetizing current flows, this does not appear across R2 due to an equal reverse current from -V to earth over rectifier D4. During half-cycles when terminal 24 is disconnected, the source - V switches the core back over rectifier D4, winding 21 and resistor R1. The input windings comprise the halves 22, 23 of a centre-tapped winding and the sources of input signals are of low impedance and deliver inputs to terminals 26 and 27 coincident with negative half-cycles of the square wave source as seen at B and C, Fig. 3. Either input finds an earth with the other source so that if both inputs are present at once neither input winding is energized. If one input is present the flux due to D.C. source -V in winding 21 is neutralized so that the subsequent positive half-cycle of the square wave source finds low impedance in winding 21 and develops an output across resistor R2 which is extracted over rectifier D5 from terminal 25 as seen at D in Fig. 3.
Patent GB-989577-A (GB)
Title: Improvements in or relating to purification of antibiotics
IPC: C07D493/04
Filed: 1963-05-01
Abstract: A process for the recovery and purification of a basic antibiotic comprises incorporating a water-soluble fluoride into an aqueous solution containing the basic antibiotic and polyvalent metal ions and removing the insoluble polyvalent metal fluorides prior to contacting the solution with a cation-exchange resin. The antibiotic may be actinospectacin, neomycin or streptomycin, the water-soluble fluoride may be sodium fluoride and the aqueous solution containing the basic antibiotic and polyvalent metal ions may be a fermentation beer.
Patent GB-1142623-A (GB)
Title: Improvements in or relating to cyclotrons
IPC: H05H7/02
Filed: 1966-04-20
Abstract: 1,142,623. Cyclic particle accelerators. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 20 April, 1966 [22 April, 1965], No. 17324/66. Heading H1D. In a cyclotron provided with three or more dee electrodes, e.g. six or as shown nine, each dee, 1 say, is coupled to two other dees 3, 8, or possibly, adjacent dees 2, 9, relatively symmetrically located, the whole system acting as a closed delay line supporting H.F. energy circulating either in the same or the opposite direction to the particles. The delay line is coupled to the generator 37 via a directional coupler 33 comprising coaxial line 34, 35 and the hole 36 or at two points which do not diametrically oppose one another. In another embodiment, Fig. 4 (not shown), the delay line is coupled at three symmetrically located points to three generators via capacitors within the envelope. The coupler 33 may be entirely outside the envelope, the metal wall 32 being provided as a copper coating, e.g. in part on the magnet polepieces and the hole being provided with a window of insulating material. Each dee is symmetrically coupled, e.g. dee 1 at two points 28, 30, to the other dees and the dimensions of the dees may approximate a quarter of a wavelength. A single central connection may be made to each dee. The coupling connections, e.g. 23, may be rods or hollow tubes through which cooling water is circulated. Each dee comprises upper and lower sector plates connected together throughout their peripheries or by connecting strips to which the connections 23 are connected. The connections 23 are alternately above and below the level of the dees. A connection may also extend from adjacent the lower sector plate of one dee to adjacent the upper sector plate of another dee. The cyclotron may be conventional or isochronous with the geometry of the polepieces such that the mean value of the flux increases in the radial direction in proportion with the increase in mass of the particles so that the period of circulation of the particles remains constant. The cyclotron may be a frequencymodulated synchrocyclotron.
Patent GB-573998-A (GB)
Title: Improvements in heat exchangers for liquids
IPC: F28D9/00
Filed: 1943-10-21
Abstract: 573,998. Heat-exchangers. AUSTIN, G. F., and WOOD, D. G. Oct. 2], 1943, No. 17326. [Class 64 (iii)] In heat-exchange apparatus for liquids comprising a number of superposed chambers 1-8, alternate chambers 1-4 being connected in series for the zig-zag flow of one liquid from an inlet 18 to an outlet 19 and the others 5-8 being similarly connected and with an inlet 20 and outlet 21 for the flow of the second liquid, the chambers are defined by single spaced plates of sheet metal and communication between each two alternate chambers, e.g., 2, 3, is effected by one or more connectors or tubular member 26 each of which extends across the intermediate chamber. As shown, the connector 26 is in two parts 25, 27 which are in screwthreaded engagement and seat in circular depressions 22 formed in the opposed plates of the chamber 7 to clamp together abutting flanges 23 of the said depressions, preferably with the interposition of a packing ring. The inlets and outlets 18-21 are also in two parts and fitted in a similar manner to the connectors 26. The exchanger is made by first assembling the plates and connectors, then welding distance pieces 9 hi between adjacent plates preferably along three edges of the latter, and finally closing the fourth edge by a hinged cleaning door 10.
Patent GB-981611-A (GB)
Title: A method of controlling screw-type injection moulding machines
IPC: B29C45/50
Filed: 1961-05-12
Abstract: 981,611. Injection moulding. H. GOLLER, and N. CHATELET, [trading as ANKERWERK GEB. GOLLER]. May 12, 1961 [May 12, 1960; April 7, 1961], No. 17412/61. Heading B5A. An injection-moulding machine comprises a screw 6<SP>1</SP> arranged for rotary and rectilinear motion in an injection cylinder 4<SP>1</SP> fed with thermoplastic material from a hopper 7<SP>1</SP>, the rotational speed and/or the counter-pressure exerted on the screw being greater during the last part, or the first and last parts, of the retration stroke of the screw as compared with the remainder of said stroke whereby corresponding temperature variations occur in the charge of material throughout the length of cylinder 4<SP>1</SP> due to heat generated by friction. As shown in Fig. 7, the screw 6<SP>1</SP> has a shank 20 attached to a piston 17 slidably housed in a cylinder 16 and axially displaced by pressure-fluid supplied by a pump 19 through a valve 26 actuated by a control device 24. The shank is provided with splines in sliding engagement with a gear 50 meshing with gears 15 rotated by a motor 14 which is connected to device 24. The counterpressure on the piston and/or the speed of motor 14 is controlled by switches 22 connected to device 24 and actuated by a disc 21 attached to shank 20. Alternatively, as shown in Fig. 8, the shank 37 of the screw engages with a thrust bearing 47 in one end of an axially-slidable member 37<SP>1</SP> which is displaced by a worm 31 and worm-wheel 32 coupled by linkages 33, 34 to a plate 38 fixed to the other end of said member, the plate being coupled by tension springs 39 to pins 40 slidably mounted in a fixed plate 42 and having screw-threads 43 engaging with nuts 44. When the screw is retracted nuts 44 abut plate 42 before the end of the stroke such that the screw is subjected to a counter-pressure by springs 39. The screw is rotatable by a motor 29 coupled to shank 37 through gearing similar to that shown in Fig. 7.
Patent GB-905647-A (GB)
Title: Improvements in or relating to journal and bearing assemblies
Inventor: BARKER ALLAN
IPC: F16C33/74
Filed: 1959-05-22
Abstract: 905,647. Gas lubricated bearings. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 10, 1960 [May 22, 1959], No. 17495/59. Classes 12 (1) and 12 (3). A gas-lubricated bearing assembly comprises a rotatable shaft 1, Fig. 1, having a sleeve 9 bonded thereto by a rubber-sealing band 10, a non-rotating bush 2 secured and sealed to a casing 8 by a ring 3, a pipe 13 which supplies gas to the bearings via pipes 12 and jets 21, and a pipe 16 which supplies sealing gas to the bearing, the gas pressure in the bearing being controlled by apertures 22 in the bush 2. The sleeve 9 is assembled on the shaft 1 prior to introducing it into casing 8, and is held by collets. Rubber is then injected into passageway 17 to fill the groove 11 in the shaft, the rubber is cured, and the collets are removed. In a modification, the sealing band 10 is in the form of a rubber ring forced over the shaft into a groove in the latter, or it may be replaced by rings such as 0-rings, at each end of the sleeve 9. In operation, when lubrication fails and the sleeve and bush 2 seize, slip occurs at the band 10 without creating a large leakage path, and the increased torque produced can be utilized to operate an alarm. The ring 3 may be replaced by a bellows or diaphragm, and the bush 2 may have stops, so that when seizing occurs the diaphragm or bellows deflects until the stops engage a fixed part of the housing, and relative rotation between the sleeve 9 and the shaft 1 then occurs by slip at the band 10. In a further modification, Fig. 3, the shaft 31 has a sleeve 36 fixed thereto by rubber rings 37, a non-rotating bush 32 secured to a casing 35 by a bellows 34, and stops 39 on the bush which engage housings 40 supported by casing 35. The gas lubricant is generated between the sleeve 36 and bush 32 when the shaft is rotated and if seizing should occur, a small rotary deflection is applied to bellows 34 to bring stops 39 against the housing 40 and then relative rotation between the shaft 31 and sleeve 36 occurs by slip at the rings 37. In a still further modification, Fig. 4, a shaft 51 driving a compressor rotor 65 is driven by an electric motor 63, 64 and is supported in bearings 52. Each bearing comprises a non- rotating bush 54 secured to the casing 53 by a diaphragm 55, and has a sleeve 58 secured thereto by rubber rings 59, stops 61 being provided on the bush which engage stop plates 62. Gas is generated between the relative rotating parts and initial deflection after seizing is taken by the diaphragm.
Patent GB-482993-A (GB)
Title: Improvements in and connected with table sewing machines for treadle operating means
IPC: D05B75/06
Filed: 1937-06-23
Abstract: 482,993. Sewing-machines. TORINES, T. C. June 23, 1937, No. 17496. [Class 112] A treadle-operated sewing-machine 2 on a table 1 is turned into a recess in the table when not in use, and the treadle 4 is turned vertically alongside one of the sides 1a. The machine is lifted slightly to raise a flap 35, then allowed to sink into the recess about hinges on the table top. A hinged plate 6 is pressed downwards by the machine, against the action of springs 26. A rod 8 is pressed down by the baseplate 7 of the machine and turns a shaft 9 to cause an arm 11 to rotate. A roller 12 on the end of the arm bears on the horizontal part of an inverted- U-shaped member 13 which slides downwards in guides 14 and forces downwards a rod 15. Contacting wedges 16, 17, guide the rod 15 outwards to bear against bars 18. These are fixed to the treadle which is turned about hinges 23 to the position shown in Fig. 3. The hinges 23 are carried by a plate 19 supported on a bearing 21. In operative position the treadle and plate 19 oscillate together. A panel 24 obscures the driving wheel mechanism 3, 5, when the machine is not in use, and is connected by springs 25 to the flap 35. When the latter is raised, the panel 24 is lifted, and a rope 34, secured to the flap, pulled to slide a forked member 28 laterally and release the end of the treadle. Two springs normally urge the member 28 to grip the treadle and connect the latter to an oscillatable plate 20 supported in a bearing 22. In a modification, Fig. 11, the U-shaped member 13 is connected by links 38, having square holes 39, with the square ends 40 on a transverse shaft 41 on the treadle 4. The links 38 are connected to the lower ends of arms 43 which are pivoted at their upper ends to lugs fixed to a side 1a. The lower ends of these arms slide upon a horizontal tube against pressure of springs 47, when the rope 34 is pulled by the raising of the flap 35. The rope is secured in an eye 50 and passes round a pulley 48. When the rope is pulled, the links 38 are pressed towards each other to cause the ends 40 to enter holes 39. The machine 2 is then lowered into the table, the baseplate 7 forces down the fork 13 and the links 38 swing the treadle into a vertical position. Abutments 51 hold the links 38 in position when the fork 13 is lowered.