baber/WOPTO huggingface dataset:
Patent GB-291151-A (GB)
Title: Improvements in mounting arrangements for automatic switches and the like
IPC: H04Q1/02
Filed: 1927-02-04
Abstract: 291,151. automatic Telephone Manufacturing Co., Ltd., Kessler, F., Woodland, C. R., and McCrindle, J. C. Feb. 24, 1927. Automatic exchange selectors.-Switch units are mounted on a channel-shaped shelf 1 of sheet steel by means of a mounting base 6, which is also channel-shaped of sheet steel and has a top portion 7, by means of bayonet-slots, the projections 9 of which fit into slots 4 on the shelf. Notches 5 enable the base to be easily located in position. The apparatus box 10, which as shown contains the condensers 12, is pivoted to the back of the mounting base 6 and fits between the flanges of the shelf and is locked in position by a raised portion 13 which engages a depression 14 in the flange of the mounting base, while projections 15 limit the turning movement. The condensers may be held by means of angle-pieces 16, Figs. 2 and 3, or by means of a spring-plate 32, Fig. 4, which fits round locking pins inserted through holes 33 at the top and bottom of the box 10. The mounting base 6 carries the relays 26, the switch mechanism 27, the bank supports 28 and the banks 29, and the cover 20 is independently supported in the same slots 4 on the shelf. The switch jack 8 engages the shelf jack 25, and extends the connections to the cables 24, which are carried by a bracket 23. Fig. 3, or by arms 34, Fig. 4, strengthened by a longitudinal member 41. A further shelf jack may be mounted on the lower flange. Additional apparatus may be mounted on the back of the shelf 1, as at 21, or on a bracket above the switch. A dust cover 30, Fig. 3, or 38, Fig. 4, is also provided. The switches are locked in position on the shelf for transport by means of a lever 18, Fig. 3, or pin 36, Fig. 4, engaging bayonet-slots on the mounting base and cover. In the arrangement of Fig. 4, the mounting base has notches 35 in its flanges such that if it raised just sufficiently to disengage the jacks 8, 25, the lower part may be pushed inwardly to bring the notches 35 into engagement with the portion of the shelf between the slots 4 and notches 5, and thus hold the switch firmly in position to enable certain tests to be made.
Patent GB-768185-A (GB)
Title: Improvements in centrifugal separators
IPC: B04B1/18
Filed: 1955-02-22
Abstract: 768,185. Centrifugal separators. WESTFALIA SEPARATOR AKT.-GES. Feb. 22, 1955 [June 1, 1954], No. 5319/55. Class 23 In a separator having sludge outlets 8 closed by a slide 5, the slide is guided during axial movement by the surface 16 of a partition 23 forming the bottom of the separating chamber 7. The slide is integral with a piston 5<SP>1</SP> which is reciprocated by a control liquid supplied to cham hers 9, 12. Control liquid draining from the chamber 12 through passages 13 flushes sludge from the annulus 17 and control liquid passing through passages 18,-,20, may supplement the flushing of the sludge. The passages 18,-,20 may be blocked by a plug 21 or nozzles may be fitted to control flow through the passages 18,-20. Jamming of the slide is prevented by so dimensioning the slide and the cooperating part of the partition that they have the same deformations under working conditions. To facilitate cleaning of the separator the distributer 4 is made integral with the partition. Two separated components are continuously discharged over weirs 28, 29.
Patent GB-660614-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: H04B3/06
Filed: 1949-02-28
Abstract: 660,614. Voltmeters. GENERAL ELECTRIC CO., Ltd., BRYDEN, J. E., and EASTER, B. Feb. 28, 1950 [Feb. 28, 1949], No. 5407/49. Class 37. An instrument for measuring the power level of oscillatory signals in a telecommunication circuit comprises means for rectifying the input signal, a valve voltmeter having an input circuit with appreciable time constant, a circuit for applying the rectified signal to the input of the valve voltmeter, this circuit including switch contacts and a non-linear impedance, and means for closing the switch contacts during the application of oscillatory signals to the instrument so that the circuit is closed for a predetermined time after the cessation of this application. The instrument comprises a twostage negative-feedback amplifier 1, a full-wave rectifier 2, a direct-current amplifier 3, a valve voltmeter 4, and a disabling circuit 5. The input terminals 6 are connected to the telephone line at the position where the level of signals is to be determined. A fraction of the signal is amplified by the amplifier 1 and rectified by the rectifier 2, a small portion of the signal also being rectified in the circuit 5, where the resultant reduction in anode current in a pentode 49 causes a relay 41 to close contacts 40. The rectified voltage developed across the load resistance 22 of the rectifier 2 is integrated by a condenser 24 and resistance 23 and produces a signal in the cathode load resistance 28 of the amplifier 3 tending to make the cathode 27 of the pentode 26 positive and thereby rendering a diode 39 conducting so that a condenser 33 in the valve voltmeter 4 is charged and a milliammeter 30 reads the mean level of the signal. The relay 41 has an appreciable operating time, so that during brief periods of no-signal such as between sentences, the relay contacts 40 remain closed. During such periods the diode 39 is non-conducting and the condenser 33 discharges through the resistances 28, 38. The resistance 38 is of higher resistance than the diode 39 when conducting, so that the time constant for the charging circuit of the condenser 33 is much less than that for the discharge when the relay contacts 40 remain closed. If the signal ceases for a time greater than the operating time of the relay 41 the contacts 40 are opened and the discharge path for the condenser 33 is then through a resistance 34 and has a greater time constant than that of the other discharge circuit. The milliammeter 30 continues to give an indication which is substantially equal to the mean level of the last signal and which decays very slowly. At the end of a conversation a switch 56 is automatically closed by restoration of the receiver, earthing the screen grid 55 of the disabling valve 49 so that the relay 41 is de-energized and the contacts 40 closed. This permits the condenser 33 to discharge through the resistance 38 so that the milliammeter indication falls to zero. Specification 660,613 is referred to.
Patent GB-572955-A (GB)
Title: Improvements in portable radio equipment employing thermionic valves
IPC: H04B1/08
Filed: 1942-04-27
Abstract: 572,955. Wireless apparatus. JACKSON, H. April 27, 1942, No. 5599. [Class 40 (v)] Portable wireless apparatus is designed so that the user's body is employed as an aerial, and the supply batteries are used as a counterpoise. The apparatus is arranged in an elongated casing having a telephone 4 at one end, next, the chief components such as a valve 1, tuning elements 2, 3, 11 and supply switch 9, while at the remote end are the supply batteries 6, 8. Connection to the operator's body is made by an electrode 12 on the telephone and a screening casing 17 held in the hand, both of which are connected to the input tuned circuit. The batteries 6, 8, forming the counterpoise, are remote from the body. Various methods of supporting the apparatus on the body by straps, clips or frames are described. Also the apparatus may be in detachable sections. When the apparatus is used as a transmitter, keying may be effected by the operator's tongue co-operating with a suitably positioned electrode, or by interrupting the H.T. supply. A flash-lamp may be fed from the L.T. source.
Patent GB-970716-A (GB)
Title: Device for correcting the position of railway tracks
IPC: E01B27/17
Filed: 1961-02-15
Abstract: 970,716. Correcting position of railway track. F. PLASSER, [trading as FRANZ PLASSER BAHNBAUMASCHINEN]. Feb. 15, 1961 [March 7, 1960], No. 5672/61. Heading B7N. Apparatus for correcting the position of a railway track comprises a track aligning and packing machine 9, 1, a wire 5 which extends forwardly of the machine to an hydraulically operated self-propelled anchoring device 10 which tensions the wire by its forward drive and a measuring device 8 on the aligning machine which co-operates with the tensioned wire. A motor 13 on the aligning machine acts simultaneously on the machine drive 14 and the cable winding roller 6 when the machine is advanced towards the anchoring device and also operates an electrical generator 15 from which current is supplied via cable 5 to operate a pump 12 for the hydraulic drive on the anchoring device. When the aligning machine reaches the anchoring device a ratchet gear on the winding roller is released and the device proceeds forwardly under its own drive until brought to a halt by the tension in the wire.
Patent GB-766666-A (GB)
Title: Improvements in the production of unsaturated polyesters
IPC: C08G63/553
Filed: 1954-02-26
Abstract: An unsaturated polyester is made by reacting (a) an unsaturated dicarboxylic acid (e.g. maleic or fumaric) with (b) a dicyclic or tricyclic diol obtainable from dicyclopentadiene or a Diels-Alder adduct of cyclopentadiene and an unsaturated alcohol by treatment with carbon monoxide and hydrogen according to the oxo synthesis and subsequent hydrogenation.  The reaction mixture may also include a saturated dicarboxylic acid (e.g. succinic, adipic, sebacic, tetrahydrophthalic or phthalic) or another diol (e.g. ethylene, 1,2-propylene, 1,3-butylene, 1,4-butylene or 1,6-hexylenene glycol). The unsaturated polyester may be copolymerized with vinyl compounds (e.g. styrene, alkylstyrenes, chlorostyrenes or vinyl acetate) preferably in presence of peroxides, Redox systems or siccatives.  In examples: (1)-(6) maleic anhydride, phthalic anhydride, the diol obtained by treatment of dicyclopentadiene with carbon monoxide and hydrogen and subsequent hydrogenation, and, if desired, ethylene or diethylene glycol are polycondensed in presence of hydroquinone and trichlorethylphosphorus acid ester or trioctylphosphorous acid ester. Coating compositions are then made comprising the resulting polyester, styrene, cyclohexane or cyclohexanone peroxide, cobalt naphthenate and, if desired, another unsaturated polyester derived from maleic acid, phthalic acid and ethylene or diethylene glycol. (5) Maleic anhydride, phthalic anhydride and the diol obtained from the adduct of cyclopentadiene and allyl alcohol by treatment with carbon monoxide and hydrogen and subsequent hydrogenation, are polycondensed in presence of hydroquinone and trichlorethyl phosphorous acid ester to give a polyester which is then mixed with styrene.
Patent GB-657837-A (GB)
Title: Improvements in and relating to linear sweep wave generators
IPC: H03K4/24
Filed: 1949-03-02
Abstract: 657,837. Saw-tooth generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. March 2, 1949, No. 5723. Convention date, March 6, 1948. [Class 40 (vi)] In a saw-tooth generator of the type in which. on energy storage device 1 is charged through a valve 2 having a screen grid and discharged in the absence of a negative input pulse at terminal 14 through a normally conducting valve 3, the output from the energy storage device is applied to the grid of a valve 4 arranged in a cathode follower circuit, the cathode voltage being applied to the screen grid of valve 2. By this means the screen-grid to cathode voltage of valve 2 can be maintained constant so that valve 2 acts as a constant current device. A potentiometer comprising a resistor 25 and either a constant voltage device 28 or a further resistor may be provided to supply the desired mean value of screen voltage.
Patent GB-1304113-A (GB)
IPC: B29C48/06
Filed: 1970-02-06
Abstract: 1304113 Broaching BAYER AG 6 Feb 1970 [7 Feb 1969] 5738/70 Addition to 1169502 Heading B3L [Also in Division B5] A continuously extruded profile 3, of polyamide acetal resin, or polycarbonate, is drawn through a sizing die 2 and a cooling device 4 by two pairs of clamping jaws 8a, 8b and 9a, 9b which alternately reciprocate at a constant speed away from, and then towards the extruder 1 respectively in and out of clamping engagement with the profile 3, which is machined to its required dimension by the multi-stage shaving tool 18 of the parent Specification which reciprocates downstream of the profile engaging clamp pair. Each clamp pair is mounted for its reciprocating movement to slide along a pair of guides 7 provided on opposite sides of the profile 3, which movement is effected pneumatically, mechanically, electromagnetically, or by double acting hydraulic power cylinders 16 or 17, the clamping and unclamping action of each clamp pair being effected by a pair of hydraulic power cylinders, 10a, 10b or 11a, 11b and the open jaws of one pair, e.g. 9a, 9b, Fig. 3, passing outside the closed jaws 8a, 8b of the other during their reciprocating movements. The synchronous operations of the clamping jaws are effected through an hydraulic circuit including limiting switches, Fig. 5 (not printed) the cylinders 16 and 17 being supplied with pressure fluid on both sides of their pistons during movement of the jaws away from the die. The cutter 18 may be reciprocated along the guides 7 by alternate automatic coupling to each jaw pair, the transfer from the open jawed to the closed jaw pair being effected when the former pair moves outside the latter. It is stated that the clamping jaws carrying the cutter 18 towards the die may move at a faster speed than the jaws engaging the profile 3, or may perform several reciprocations before transferring the cutter 18. Alternatively, the reciprocation of the cutter 18 may be effected independently of the jaw pairs. The speed of movement and withdrawal force of the profile engaging clamp pair may be varied.
Patent GB-755652-A (GB)
Title: Improved method in making a wheel
Inventor: SYLVESTER EDMUND QUINCY
IPC: B22D18/04
Filed: 1954-02-26
Abstract: 755,652. Costing-processes; making wheels. GRIFFIN WHEEL CO. Feb. 26, 1954, No. 5770/54. Addition to 721,091. Drawings to Specification. Classes 83 (1), 83 (2) and 83 (4). A method of making a wheel comprises producing a wheel casting having a stopper embedded coaxially in its hub and then cutting an axle-hole through the casting by passing a flame through the stopper and then cutting in a path circumscribing the stopper. The subject-matter of the Specification is substantially the same as that of Specification 726,355, which is referred to. Specification 718,744 also is referred to.
Patent GB-489119-A (GB)
Title: Improvements relating to controlling mechanisms for electric motors
IPC: H02P25/26
Filed: 1937-02-26
Abstract: 489,119. Control of motors and change speed gearing. SMITHSON & CO., Ltd., J. G., and SMITHSON, J. G. Feb. 26, 1937, No. 5789. [Class 38 (iii)] [Also in Group XXIV] Controlling mechanism for motors driving cranes, machine tools, lifts, or locomotives comprises an electromagnetically controlled epicyclic or other variable transmission mechanism c between the motor a and the driven shaft, resistances h<1>-h<4> adapted to control the supply of current to the motor windings, a controller k operated by the attendant for varying in a predetermined manner the action of the resistances and transmission mechanism, and means whereby reversion of the transmission mechanism from a high-speed ratio to a low-speed ratio is prevented until the controller has been returned to its '' off " position. The controller k which may be of the drum or camoperated contactor type has contactors n, n<1>, n<2>, o<1>, o<2>, controlling the reverse connections of the motor a to the supply, contactors p<1>-p<4> controlling the rotor resistances h<1>-h<4>, and contactors f<1>, g<1>, controlling electromagnets f, g, which release brakes d, e controlling the two-speed epicyclic gearing c. Upon operation of the controller, contactors n, n<1>, n<2>, o<1>, o<2>, effect connection of the motor for operation in one direction or the other. Resistances h<1>, h2 are then cut out followed by the removal of resistances h<3>, h<4>. Contactor f<1> remains closed so that the brake d is released by energization of the electromagnet f and the acceleration takes place with the low-speed gear in operation. Upon further movement of the controller k the resistances h<1>-h<4> are reinserted, the contactor fl opens and the contactor g<1> closes. Thus the brake e is released and the brake d operated so that with removal of the resistances h<1>-h<4> the motor is again accelerated but with the high speed gearing effective. An interlock contact r<1> operated by the electromagnet g prevents reversion to low-speed operation until the controller has been returned to its "off " position. An interlock r opens the circuit to the electromagnet f when the electromagnet y is energized, and interlock contacts r<2>, r<3>, deenergize an electromagnet j to apply a holding brake i if the brakes d and e are applied simultaneously due to a fault.
Patent GB-209981-A (GB)
Title: Improvements in toothed gearing
IPC: F16H1/28
Filed: 1923-03-01
Abstract: 209,981. Gray, W. March 1, 1923. Toothed gearing.-In epicyclic reducing gearing, a bevel wheel 1 secured to the driving-shaft C gears with two planet-wheels 7 secured to wheels 8 gearing with a stationary sun-wheel 9. The planet-wheels are carried in a fly-wheel 3 secured to the driven shaft D, which is preferably driven at half speed by making the wheels 1, 7 and 8, 9, respectively, of equal diameters.
Patent GB-460393-A (GB)
Title: Improvements in sliding block bearings
IPC: F16C17/06
Filed: 1936-02-28
Abstract: 460,393. Bearings. AKTIEBOLAGET NOMY. Feb. 28, 1936, No. 6022. Convention date, March 2, 1935. [Class 12 (i)] A sliding-block thrust bearing comprises blocks 5 each tiltably supported on an element 6 carried by a separate resilient member 7, the latter members being given an initial tension greater than the maximum load to be sustained by each block with even distribution of load over all the blocks. As shown, the resilient members 7 are formed of spring washers and the parts are supported by screw bolts 8, and are carried in an U-shaped annular casing 4. The blocks 5 co-operate with a bearing surface 21 on a collar 33 carried by a member 20 clamped to the shaft 16. In addition a radial bearing member 25 may co-operate with the member 20. The bearing 25 is centred by spring controlled pins 29 and it may have a thrust bearing surface to engage the upper face of the collar 33 to take thrust directed upwardly. The bearing 25 has a curved or spherical outer surface 27. Lubricating passages 34, 35, may be made in the radial bearing, and passages 12 to facilitate assembly of the blocks 5 and for the passage of lubricant may be provided in the casing 4. In a modification for horizontal shafts spring supported tilting thrust blocks are arranged on both sides of a collar on the shaft, and all annular parts of the bearing are divided axially to facilitate assembly.
Patent GB-969663-A (GB)
Title: Threaded anchorage and method of making same
IPC: B23P11/00
Filed: 1962-02-16
Abstract: 969,663. Screw-sockets. GENERAL AMERICAN TRANSPORTATION CORPORATION. Feb. 16, 1962 [March 24, 1961], No. 6022/62. Heading F2H. [Also in Division B3] The method of producing a strong threaded anchorage in a workpiece 10 formed of relatively hard solid material, comprises providing an internal thread-like structure 12a on said workpiece interiorly of a bore 11 formed therein, providing a ferrule 20a formed of relatively soft metal capable of plastic flow under swaging pressure, securing said ferrule in place in said bore, and subjecting the interior surface of said ferrule to swaging pressure with an extremely hard thread-swaging member, a fluteless tap 30, so as simultaneously to swage an internal thread 22 upon the interior surface of said ferrule 20a and to swage an external thread-like structure 23 on the exterior surface of the ferrule, wherein said thread-like structures 12a, 23 are complementary and disposed in interlocked frictional engagement with each other so as securely to anchor the ferrule in place in the bore, said internal thread being adapted to receive a screw, Fig. 5 (not shown). The tap 30 has threaded radially relieved portions spaced at 120 degrees. In a modification, Fig. 6, a ferrule 70a having a lip 72 and a thread 73b is used. The material of the workpiece 10 may be cast iron, steel, aluminium, bronze, die cast zinc, phenolformaldehyde or methyl methacrylate resin and the ferrule may be of steel, low carbon or stainless, brass or bronze. A damaged internal thread in the workpiece may be repaired by boring out at least part of the damaged thread, retapping and inserting and swaging a ferrule.
Patent GB-627538-A (GB)
Title: An improved cabinet or table structure and ironing equipment combined therewith
IPC: A47B35/00
Filed: 1947-03-03
Abstract: 627,538. Ironing-boards. HOTPOINT ELECTRIC APPLIANCE CO., Ltd., and WRAY, F. R. March 3, 1947, No. 6051. [Class 138 (ii)] [Also in Group XIV] In an ironing-board arrangement, of the kind including a reversible part comprising a table top or the like unitarily combined with an ironing-board and a fixed supporting frame or cabinet, the reversible part is pivoted on the frame on an axis fixed with relation to the frame. As shown, the unit comprising the ironing-board 3 and cabinet top 2 is reversible on trunnions 6 and may be locked in either position. An iron stand 7 may be pivotally connected at one of its corners to the heel of the ironing-board so that it may. be swung into position by movement in its own plane and a guide 8 for the flexible load may be provided. Specification 212,356, [Class 52 (iii)], is referred to.
Patent GB-995463-A (GB)
Title: Improvements in or relating to fabric hems
IPC: A41D27/24
Filed: 1963-02-14
Abstract: An adhesive tape for use in hemming fabrics &c. has laterally offset adhesive layers on its opposite faces which layers may be continuous or in spot formation.  The tape can be formed of fabric, "Cellophane" (Registered Trade Mark), a polyester, paper, fur, leather &c., and the adhesive can be any known glue or thermoplastic adhesive, e.g. products based on polyesters, polyacylonitrile, polyamides, synthetic rubbers, polyolefines, especially polyethylene, epoxy resins, vinyl resins, acetate, acetochloride, acetal or butyral, cellulose derivatives, elastomers of butadiene-acrylonitrile, butadienestyrene or polyisobutene, polyurethanes &c.
Patent GB-169125-A (GB)
Title: Improvements in or relating to corsets, waistbelts or the like, and stocking suspenders attached thereto
IPC: A41F11/14
Filed: 1921-02-23
Abstract: 169,125. Shorrock, T. Feb. 23, 1921. Corsets; belts; stocking suspenders. - A stocking - suspending device comprises suspending elements d having pulleys mounted on a cord c or the like passing round the body in a succession of loops and running over pulleys in supports b attached to a corset, waist-belt, or the the like.