baber/WOPTO huggingface dataset:
Patent FI-991144-A (FI)
Inventor: LUUKKO JULIUS
IPC: H02P21/34
Filed: 1999-05-19
Abstract: A method for starting an open-loop vector control of a synchronous machine by determining a stator inductance model of the machine; measuring the stator iductance in a plurality of directions; arranging the measured inductances in the model to form model parameters resulting in minimum error; checking the polarity of rotor magnetization to verify the direction thereof; initializing flux linkages of the open-loop vector control according to the model parameters and the direction of rotor magnetization; and starting the machine by the open-loop vector control method.
Patent FR-1276107-A (FR)
IPC: E06B9/06
Filed: 1960-10-05
Granted: 1961-11-17
Abstract: 908,140. Window &c. blinds. ATELIERS DE CONSTRUCTION SCHWARTZ-HAUTMONT S.A. DES. Dec. 12, 1960 [Oct. 5, 1960], No. 42744/60. Class 20 (3). The casing 9 housing a blind 10 in its withdrawn condition is movable from one face of the window or door to the other so that the blind may be drawn over the exterior or interior face of the window or door. As shown the casing 9 is pivoted on the axis 11 of the rounded top of the casing and the swing movement is limited by stops 13, 13a. Guide channels 16, 16a guide the blind slats 10 on the internal and external lateral stiles of the main frame and receive the slats in flared upper ends. Weather strips 5, 5a, 14, 14a and 15, 15a are provided as shown.
Patent FR-1306438-A (FR)
IPC: D06F37/22
Filed: 1961-11-17
Granted: 1962-10-13
Abstract: 915,244. Change-speed gear and control. GENERAL MOTORS CORPORATION. Oct. 27, 1961 [Nov. 18, 1960], No. 38521/61. Class 80 (2). [Also in Groups VIII and XIII] A washing-machine drum is rotatable about a non-vertical axis by a motor 84 through a trans. mission including a spring clutch 180 and a device for preventing engagement of the clutch by any reverse rotation of the drum such as may occur due to unbalance of the clothes when the drum comes to rest after rotation. This device comprises a solenoid operated pin 186 biased by a spring 200 into engagement with one of several notches 198 in a plate 166 to which one end 182 of the spring 180 is secured. When the plate 166 is held by the pin 186 against rotation, the spring 180 tends to unwind and low-speed rotation is transmitted through a pinion 116 on the motor shaft 112, a gear 146 meshing with the pinion 116, a spring clutch 174, and a gear hub 152 keyed to a shaft 130 carrying a pulley 140 connected by belt drive to the clothes drum. When the solenoid 188 is energized pin 186 is withdrawn and high-speed drive is transmitted to the drum through a clutch hub 160 keyed to shaft 112, clutch spring 180, a gear hub 158, gears 156, 150 and shaft 130. After a spindrying period, a timer de-energizes the motor 84 and solenoid 188, and the plate 166 is arrested by the pin 186 before the clothes drum comes to rest. Any reverse rotation of the drum is therefore prevented by the pin 186 from causing reverse rotation of plate 166 which would tighten the spring 180; subsequent clothes tumbling starts at low speed. Energizing of solenoid 188 to withdraw pin 186 (for spinning) does not take place until the drum has rotated for a period at low speed.
Patent GB-561422-A (GB)
Title: Feeding means for typewriting or the like machines
IPC: B41J11/68
Filed: 1943-01-21
Abstract: 561,422. Typewriters; cutting-apparatus; record sheets. AUTOGRAPHIC BUSINESS FORMS, Ltd. (Autographic Register Co.). Jan. 21, 1943, No. 1060. [Class 100 (iv)] [Also in Groups VIII and XV] In a feeding mechanism for typewriters and like machines, which is especially applicable to a machine as in Specification 555,797 having an attachment for transforming a machine having a friction feed into one having a positive pinwheel feed, and which can deal with multiple stationery having leaves secured together, cutting or severing means are provided for removing the apertured margins and also the means which secure the leaves of the stationery together, and in some cases the securing means may be severed without the apertured margins. In Figs. 1 and 3, the invention is shown applied to a tabulating machine, and the attachment 26 is fitted with two adjustable feed wheel and cutting attachments 31 which are laterally adjustable on a shaft 30 for dealing with sheets of different widths. Each attachment 31 comprises a pin-feed roller 34 which feeds the sheets away from the platen roller 21, and the roller 34 is formed with a groove 40 for co-operation with a cutting or tearing disc 58 which can slit the sheets or tear them along weakened lines 59, Fig. 1, arranged inside of the feed perforations 22a. The disc 58 is formed on a roller 53 formed with parts 53c, 53a which engage the roller 34 frictionally on either side of the groove 40, or the part 53c may be omitted. The roller 53 is mounted in a spring-pressed pivoted arm 50 mounted in an adjustable bracket 46 held in adjusted position by a screw 47. A combined guide and sheet guard 60 is attached to the arm 50. The roller 53 is formed with a recess 53b in register with the pins 35, and with a part 53c which engages the pin roller 34 frictionally for driving purposes. As shown in Fig. 8, the slitting disc is set so as to sever the means 63 which secure the edges of one side of a block of multiple stationery leaving the feed holes uncut. The device can be arranged to sever only one line of perforations, in which case the other line is advanced by a conventional feed wheel 64.
Patent GB-1214101-A (GB)
Title: Thermoplastic material pressing apparatus
IPC: C03B11/12
Filed: 1969-01-08
Abstract: 1,214,101. Moulding dies and plungers. CORNING GLASS WORKS. 8 Jan., 1969 [8 Jan., 1968], No. 1178/69. Heading B5A. [Also in Division C1] In apparatus for the compression moulding of corrosive or abrasive thermoplastics, e.g. polystyrene or glass, between opposed mould assemblies, the cavity defining surface 11a of a mould assembly 10 is provided by a relatively thin member 11, of resistant alloy, having an opposed surface 11c which is supported, during the pressing operation, by an identically contoured surface 14c of a relatively massive support member 14, from which it is thereafter urged apart, whereby heating or cooling fluid, e.g. air, may be supplied to between the surfaces 11c, 14c through holes 14d in the member 14. In the Figs. 1 and 3 embodiment, the pressing operation is accomplished by the male plunger 15 of an assembly 15 provided with aligning dowels 15c. The member 11 is supported on member 14 by a plurality of bolts 22 which each threadingly engage a member 19 of a plurality of assemblies 19, 20 clamping around a flange 11b of the member 11. The member 11 is urged apart from member 14 by springs 18, each of which are located between a member 19 and one side of a slot 14g, in member 14, against the other side of which the head of the bolt locates and along which the bolt 22 may move to permit aligning movement of members 11 and 14 when these are pressed together by the plunger 15a. A similar arrangement may be provided on the male plunger assembly, Fig. 2 (not shown), for supporting similar arrangements of a thin cavity defining member and relatively massive support member. The member 11 may also be supported on member 14 by a plurality of fluid pressure piston cylinder means, Fig. 4 (not shown), permitting similar aligning movement of each cylinder thereof within member 14. The piston cylinder means may be supplied with fluid pressure to urge the members 11 and 14 apart and which fluid is compressed and/or part thereof forced to return to its source during the pressing operation. Such piston cylinder means may also be positively actuated by pressure and/or vacuum for movement of the member 11 in either direction independently of the pressing operation, and may also include a compressible coil spring, Fig. 5 (not shown), acting to move member 11 apart from or towards member 14 in conjunction therewith. In an alternative embodiment, Fig. 6 (not shown), which does not provide for aligning movement of members 11 and 14 as these are moved together, member 11 is moved apart from member 14 by cam means acting against a compressible coil spring. The Figs. 4, 5 and 6 embodiments may also be applied to male mould assemblies.
Patent GB-963017-A (GB)
Title: Machine for preparing screw-threaded pipes
IPC: B23G1/32
Filed: 1961-01-12
Abstract: 963,017. Machine tool details. RHEINSTAHL HUTTENWERKE A.G. Jan. 12, 1961 [Jan. 13, 1960], No. 1347/61. Addition to 920,204. Headings B3K and B3T. [Also in Division B5] In a modification of the machine for preparing a threaded pipe 1 of the parent Specification a selector is provided to cater for different thread diameters and different saw blade diameters. Tool spindle 35 carrying a thread cutter 37, and a circular saw 36 is moved transversely and longitudinally relative to the pipe by slides 39, 40. The selector comprises a graduated stepped drum 204 rotatable in a crosshead 209 and three screws 104, one of which engages one of the steps 207 according to the screw thread diameter to be cut. Crosshead 209 is urged to the right, Fig. 1, by a spring 106 and is adjustable by a screwed spindle 210. A slide 213 integral with the crosshead has pins 214, 215, which engage cams 227, 228, carried on a shaft 226 which also carries helical end cams 223, 224. In operation, with the mechanism as in Fig. 1, ram 98 is moved to the left, thus moving slide 213 and slide 39 to the left to allow saw 36 to part off the pipe. Saw 36 and ram 98 return to the positions of Fig. 1 and lever 131 is moved to the chain line position for screwing. Cam 227 is rotated so that face 232 contacts ram 98, and face 233 engages pin 214, and cam 228 is moved away from pin 215. Slide 39 is moved by crosshead 209 to the left so that cutter 37 just contacts pipe 1, and as shaft 226 is rotated cams 223, 224 approach each other thus retracting finger 229, and allows wedge surface 138 to contact ram 136. The machine is now actuated and ram 98 moves cutter 37 to the required thread depth, roller 135 and ram 136 are lifted and move slide 40 a distance S corresponding to the pitch of the thread. If a pipe of smaller diameter is to be cut, drum 204 is rotated to allow a screw 104 to engage a different step 207. An adjusting screw 208 is provided to cater for re-grinding of saw 36.
Patent GB-612104-A (GB)
Title: An improved spring insertion for cushions and the like
IPC: A47C27/07
Filed: 1941-02-03
Abstract: 612,104. Mattresses &c. HUNGARIAN RUBBER GOODS FACTORY, Ltd. Feb. 3, 1941, No. 1386. Convention date, July 25, 1939. Addition to 515,588. [Class 52(iv)] The connecting wire portions of the springs described in the parent Specification are formed as loops a, a<1>, a<2>, to afford better seating for the load and a firmer fastening for the connecting element b.
Patent GB-386443-A (GB)
Title: Improvements in tapes for distinguishing and insulating the cores of multi-core electric cables
IPC: H01B7/36
Filed: 1932-01-19
Abstract: 386,443. Identifying-tapes for cables. ROTUNDA, Ltd. and HANDS, H., Man. chester Road, Denton, Lancashire. Jan. 19, 1932, No. 1539. [Class 36.] An insulating distinguishing tape for the cores of a multicore cable is proofed or coated on one or both sides with coloured rubber and bears distinguishing characters printed on the proofed or coated surface in a rubberink consisting of an ink or colouring matter mixed in a rubber solution which will incorporate itself in the rubber coating or proofing.
Patent GB-580750-A (GB)
Title: Improvements in or relating to radio antennae
IPC: H01Q9/44
Filed: 1944-01-27
Abstract: 580,750. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 27, 1944, No. 1587. Convention date, Jan. 27, 1943. [Class 40 (v)] The operating frequency band of V or diamond long wire aerials is broadened by utilizing two aerials erected in perpendicular planes so that substantially no mutual coupling exists and connecting them through an impedance inverting quarter wave line so that variations of impedance at the input of one aerial are balanced by the variations due to the other aerial. A pair of V aerials 10, 11 and 12, 13 lying in perpendicular planes are supported by insulators I from posts 15, 16 and 17, the line of intersection of the planes coinciding with the direction of maximum response indicated by the arrow S. Two wire lines 20, 21 and 22, 23, of lengths equal, or differing by an integral number of half waves at the mean frequency, connect the aerials to impedance matching units M, M<1> which are connected together by a transmission line TL having an effective length of one quarter of the mean operating wavelength. To one end of line TL is connected the main transmission line TL<1> to the associated receiving or transmitting equipment. The variations of impedance with frequency across the junction of lines TL and TL<1> due to both aerials are in opposite sense and substantially balance out and since there is negligible coupling except through the feeder system, each aerial radiates independently in the desired direction. The V aerials may be extended to form diamonds, Fig. 2 (not shown), the convergent ends of the conductors of each aerial at the ends remote from the feeding points being either insulated or joined together.
Patent GB-675536-A (GB)
Title: Improvements in the driving of rotatable shafts
Inventor: AMBLER GEOFFREY HILL
IPC: D01H5/74
Filed: 1950-01-21
Abstract: 675,536. Gearing for conveying rotary motion. AMBLER SUPERDRAFT, Ltd. Dec. 8, 1950, No. 1644/50. Class 80 (i). [Also in Group IX] To reduce the bearing load on a shaft 47, such as the shaft of a textile drafting apparatus as described in Specification 671,633, [Group IX], substantially equal drives are applied at diametrically opposed points of the shaft by a pair of parallel chains 57, 58 in combination with a differential gear. The chains 57, 58 are driven in opposite directions by a double sprocket 64, 66, Fig. 7, and gearing 67, 68, 69 from a suitable source of power and in turn drive sprockets 78, 79, Figs. 3 and 6, which are freely mounted on the shaft 47 and are integral with or secured to the side bevels 86, 87 respectively of a differential gear 84, 86, 87. Bevel pinions 84 of the differential are mounted on radial shafts 83 on a carrier member 82 secured to the shaft 47. Thus the lower run of chain 57 and the upper run of chain 58 moving in opposite directions drive the sprockets 78, 79, in the same direction of rotation so that apart from equalising the torque transmitted from each chain the differential gear rotates solid to drive the shaft 47. This arrangement also allows of transverse adjustment of the shaft 47 without affecting its speed of rotation. In a. modified arrangement the differential gear is included in the drive to the two chains which drive sprockets secured direct to the shaft 47 or if the gearing is suitably arranged with the chains operating in the same plane the chains may engage one and the same sprocket on shaft 47.
Patent GB-307581-A (GB)
Title: Improvements in or relating to stuffing boxes and the like for preventing the escapeof fluid under pressure
IPC: B01F15/00
Filed: 1928-01-18
Abstract: 307,581. Schering-Kahlbaum Akt.- Ges., and Baensch, W. Jan. 18, 1928. Joint-making packing. - In apparatus for treating materials with gases the packing gasket 15 of the cover 8 is sealed by liquid, introduced into an annular space 17 through a passage 18, which is subsequently closed by a screw.
Patent GB-251010-A (GB)
Title: Improvements relating to the electro-deposition of nickel
IPC: C25D3/12
Filed: 1925-01-21
Abstract: 251,010. Ollard, E. A., and Metropolitan-Vickers Electrical Co., Ltd. Jan. 21, 1925. Nickel, depositing. - Ozonized air or ozonized oxygen is supplied. to the electrolyte before or during deposition. When air is used the ozonizing apparatus should be designed to give a fairly high percentage of ozone and practically no oxides of nitrogen. In an example, the electrolyte contains ¢ 1b. crystalline nickel ammonium sulphate, 1 Ib. crystalline nickel sulphate and “ oz. common salt per gallon. 50 c.c. per minute of ozonized air are passed through a vat containing 3 gallons of electrolyte for 2 or 3 hours before starting deposition. The anode surface is 0.2 sq. ft., the cathode surface 0.1 sq. ft., the current density 10 amps. per sq. ft. of cathode surface, and the temperature about 20‹ C. For thick deposits the plating operation may last several days. The ozone supply is renewed about once a week.
Patent GB-766207-A (GB)
Title: Improvements in or relating to an apparatus for generating gases for operation of an engine
IPC: F02C7/22
Filed: 1955-01-21
Abstract: 766,207. Gas turbine plant. GARRETT CORPORATION. Jan. 21, 1955 [Feb. 3, 1954], No. 1883/55. Class 110 (3). [Also in Group XII] A fuel supply apparatus for use with a combustion product engine 15 comprises a container 10 having a movable wall or partition 13 which divides the container into a fuel storage chamber 12 and a gas storage chamber 11, a combustion chamber 14 being so disposed in relation to the gas storage chamber that heat from the combustion chamber is transferred to the gas to cause thermal expansion thereof. Means are provided for supplying fuel from the storage chamber to the combustion chamber, also for conducting combustion products from the combustion chamber to the engine. The fuel chamber 12 is connected by ducts 28, 30, 32 and valves 29, 31 to the combustion chamber 14 which is disposed within the gas chamber 11. Fuel issues into the combustion chamber and into the flame tube 41 disposed therein through bores 39, and combustion is initiated by means of an electric spark or heater device 43 projecting into the flame tube. Combustion gases issue through the duct 53 to drive the engine 15 which in the embodiment shown is a turbine 57. The turbine 57 drives the load 16 through a clutch 17. The operation is started by closing the switch 47 which causes current to flow from the battery 44 to the igniter 43, also through the solenoid 51. Movement of the solenoid causes the fuel control valve 29 also the gas control valve 52 to open, the pressure of the gas acting on the diaphragm 13 causing fuel in the chamber 12 to flow through the valve 29 into the combustion chamber, the valve 31 being normally held open by the spring 81. The combustion gases produced drive the turbine 57. At the same time, gas under pressure passes from the chamber 11 through the duct 73, valve 52 and duct 74 to the annulus 68 in the clutch housing. The pressure of the gas causes the spring-loaded annular piston 67 also the thrust bearing 65 and clutch. plate 62 to move to the left, the clutch plates 61, 62 engaging to transmit power from the turbine to the load 16. A governor device 19 is driven from the shaft 63, outward movement of the flyweights 78 under excessive speed causing the conical member 79 to rise thereby closing the secondary fuel control valve 31. A small bore 72 is provided from the annulus 68 to permit a flow of gas therethrough. The combustion chamber is provided with fins 42 whereby the gas in the chamber 11 is heated so that the pressure thereof remains substantially constant despite the increase in volume as fuel is discharged from the chamber 12. The fuel may be a monofuel (such as ethylene oxide) or fuel which requires a supply of air for its combustion. The gas in the chamber 11 may be nitrogen. A braking disc 71 is provided to bring the clutch disc 62 and shaft 63 to rest when the gas supply to the annulus 68 is cut off.
Patent GB-1143913-A (GB)
Title: Liquid phase isomerisation and/or disproportionation of alkyl aromatic hydrocarbons
Inventor: WISE JOHN JAMES
IPC: B01J29/18
Filed: 1968-01-12
Abstract: 1,143,913. Isomerization; disproportionation. MOBIL OIL CORP. 12 Jan., 1968, No. 1996/68. Heading C5E. Alkyl aromatic hydrocarbons are isomerized and/or disproportionated in the liquid phase at less than 600 F. in the presence of a crystalline aluminosilicate catalyst having a sodium content of less than 4% by wt. The feedstock may comprise mono- or polyalkyl benzenes or alkylnaphthalenes. The catalyst may include cations of the metals Ca, Mg, Mn, Cr, Al, Zr, V, Ni, Co, Fe, and/or rare earth metals and non- metallic cations H+, NH4+, N(Me) 4 + and N(Et) 4 +. Examples describe the isomerization of o-xylene to give mainly m and p-xylenes and the disproportionation of toluene to give benzene and xylenes.
Patent GB-972691-A (GB)
Title: Improvements in or relating to semi-automatic firearms
Inventor: VESELY JOSEF
IPC: F41A19/32
Filed: 1960-01-20
Abstract: 972,691. Small arms. BIRMINGHAM SMALL ARMS CO. Ltd. March 13, 1961 [Jan. 20, 1960], No. 2005/60. Heading F3C. Relates to a fixed barrel semi-automatic firearm in which the longitudinally slidable bolt 2 has a striker 4 slidably mounted therein for movement independent of the bolt. According to the invention the bolt 2 and striker 4 are individually held in their retracted or cocked positions by a sear 7 and a co-operating plate member 9, the arrangement being such that on release of the trigger 6 after firing, the plate member 9 allows the bolt to move forwardly under the action of its spring 3 to feed a cartridge into the breech while the striker 4 is held against its spring 5 by engagement with the sear 7 (see Fig. 1) until the trigger is again pulled. The plate member 9 is of U-form which straddles the sear 7 and is pivoted on the sear pivot pin 10 with the web 11 uppermost. A compression spring 12 is mounted between the sear 7 and member 9 and urges the forward parts of the sear and plate member into contact. Starting with the gun cocked and a cartridge fed into the breech (see Fig. 1), on pulling the trigger 6, the sear 7 is pivoted downwardly out of engagement with a bent 8 on the striker 4 which moves forwardly to fire the cartridge. This depression of the forwardend of the sear permits the forward end of the member 9 to fall, so that the rearward end is raised into the path of the bolt 2 which recoils after firing, taking with it the striker 4 by means of an abutment (not shown) on the bolt which engages the striker. The member 9 thus engages a bent 13 on the bolt 2 to retain it and thus the striker in the retracted position (see Fig. 2). On releasing the trigger the forward end of the sear 7 is raised carrying with it the forward end of the member 9 so that its rear end is released from the bent 13 of the bolt 2. The bolt 2 thus moves forward to feed the next cartridge and the bent 8 of the striker 4 is engaged by the sear 7 so that the gun is again cocked.
Patent GB-620794-A (GB)
Title: Improvements in package with cover or support therefor
IPC: B65D75/38
Filed: 1947-01-22
Abstract: 620,794. Wrapping-up. SALFISBERG, L. L. Jan. 22, 1947, No. 2006. Convention date, Feb. 6, 1946. [Class 94(i)] A package comprises superposed layers of material 1, 2 sealed together to provide one or more compartments 4 between them, a marginal portion 6 of one of said layers projecting beyond the margin of the other layer and carrying on its surface facing the other layer a coating of a sealing substance to seal the portion 6 to another object. The layers 1, 2 may be sealed by a coating of the sealing substance. A package may be made from a cover strip having a flap 12 foldable inwardly over the main part of the strip to the inner side of which the projecting marginal portion 6 is sealed at the free end as at 7, the other end 12 being removably insertable between the free end and the package for closing. A tear-line 10 may be provided. Two or more packages may be attached at the free end 7. In a modification the cover includes two connected sections 22 and 23. The free edge portion of the envelope is folded inwardly at 24 and the free edge of the section 23 is inserted into the fold 24 to hold the envelope 25 between said fold and the point of connection of the envelope at 19. The section 22 is inserted between the envelope 25 and the free marginal portion of the flap 19. The sheet material of the envelopes may be the material known under the Registered Trade Mark " Cellophane," metal foil or sheet material with a thermoplastic or adhesive coating, which may be made to adhere by heat and pressure, or pressure alone. Specification 554,965 is referred to.