baber/WOPTO huggingface dataset:
Patent GB-1385427-A (GB)
Title: Acoustic emission welding controller
IPC: B23K11/11
Filed: 1972-05-24
Abstract: 1385427 Circuits for controlling spot welding machines TRODYNE CORP 24 May 1972 [10 May 1972] 24549/72 Heading H2H A system for controlling a spot welding machine 14 comprises a piezo electric transducer 10 for detecting stresses in the welding zone during a welding operation and a circuit connected to the transducer for terminating the weld operation when a predetermined stress level is sensed. The transducer 10 is mounted on one of the welding electrodes 12 and is connected via a variable gain amplifier 20 and a band pass filter 22 to threshold detectors 24, 26, 28. Each threshold detector comprises a differential amplifier to one input of which the stress signal is fed whilst the other input is connected to a selected one of a bank of resistors. At the instant of starting the weld operation, clock pulses derived from the A.C. mains and a counter 34 are fed to a comparator 36 and, after a delay, to counters 52, 54 via respective gates 50, 51. The counters 52, 54 are connected to comparators 58, 64 each of which receives as its other input a preset binary coded decimal signal supplied by a respective device 56, 66. Since the magnitude of the transducer signal depends on the weld volume, when the weld volume exceeds the preset value, the comparator 58 provides a signal for a welder control 46, via a logic circuit 40 and a driver circuit 42, which switches off the welding machine. The comparator 36 monitors the duration of the weld cycle by comparing the weld time with a preset time supplied by a circuit 38 so that when the elapsed time exceeds the preset time the machine 14 is switched off via the circuits 40, 42. If the output of the counter 52 does not reach the preset value supplied to the comparator 58 an alarm 60 is operated. The detectors 26 and 28 monitor the expulsion of metal from the weld and post-weld cracking respectively, a delay circuit 70 enabling the opening of a gate 74 after the opening of the gates 50, 51. If the metal expulsion and post weld cracking signals from the transducer exceed the preset binary coded decimal signals supplied by the devices 66, 80, a respective alarm 68 or 82 is operated. The contents of each counter are fed to a respective read out device 84, 86, 88 and to a display device 96 via a switch 92. The display may comprise a printer or light emitting diodes.
Patent GB-673621-A (GB)
Title: Selective flotation of zinc sulphide
Inventor: HENDRICKSON LUTHER GLENN
IPC: B03D1/06
Filed: 1950-10-09
Abstract: Zinc sulphide is separated from other metallic sulphides or non-sulphides by deactivating the particles by aeration at high temperature (between 80 DEG C. and the boiling point of the pulp) with violent agitation, selectively reactivating the zinc sulphide at medium temperature (60-80 DEG C.) with gentle agitation, and floating the zinc sulphide with gentle agitation.  The deactivation may be carried out at 90-95 DEG C. for 30 minutes and, after cooling to 70 DEG C., by the addition of water, sufficient lime may be added to give a pH value of 10 to 11 while agitating gently.  Copper sulphate may be added with gentle agitation and sodium aerofloat added.  The reactivated pulp may then be cooled to 5-50 DEG C. and the zinc sulphide floated off with gentle agitation.
Patent GB-246830-A (GB)
Abstract: 246,830. Deutsche Industrie-Werke Akt.-Ges., (Assignees of Deutsche Werke Akt.-Ges.). Feb. 2, 1925, [Convention date]. Seat adjustments.-A vehicle seat comprises a fixed seat member a and an adjustable back b which may be mounted on supports d pivoted at e to the floor, or may be carried by a pair of pivoted links n. Members 9, pivoted to the back at f, and carrying pins h to engage slots i on the sides of the vehicle, may be provided. By this arrangement the effective depth of the seat can be adjusted, without greatly altering the angle between the surfaces of the back and the seat portions.
Patent GB-1033045-A (GB)
Title: Device for producing coagulations in the fundus of the human eye
IPC: B23K26/02
Filed: 1964-06-15
Abstract: 1,033,045. Lasers. CARL ZEISS-STIFTUNG, [trading as CARL ZEISS]. June 15, 1964 [June 14, 1963], No. 24715/64. Heading H3B. [Also in Divisions A5 and G2] In a device for producing coagulation in the fundus of the eye in which a highly intensive radiation source having a small aperture, such as a laser, is used, a lens system is arranged between the source and the eye to allow for ametropia of the latter. A simple collective lens, Fig. 2 (not shown), may be arranged at a distance from a laser approximately equal to its focal length the eye being so spaced from the focus that the diverging rays are substantially all within the aperture of the pupil. In a modification two lenses 2b, 2c are used, the lens 2c having the longer focal length being spaced at distances approximately equal to its focal length from both the eye 12 to be treated and the shorter focal length lens 2b. The latter is associated witb a diaphragm 2b<SP>1</SP> which is adjustable by ring 17 for varying the size of the spot produced on the fundus, and lens 2b and diaphragm 26<SP>1</SP> are slidable together to accommodate any ametropia of eye 12. The whole apparatus, including laser 1, is mounted on an arm 8 supported by a linkage for universal movement from a tripod, a weak light source and apertured mirror 11 allowing the opthalmologist 13 to focus the device.
Patent GB-278523-A (GB)
Title: Automatic safety lock for railway passenger carriages or the like
IPC: E05C19/16
Filed: 1926-10-06
Abstract: 278,523. Witts, H. T. Oct. 6, 1926. Electromagnets for railway-carriage door locks comprise a coil B in an ebonite tube A and case D mounted in a brass casing E. The soft iron core F is loose and has a copper plug G to prevent the bolt I from sticking. The bolt I is mounted in a brass case H and is tapered at each end, and falls out with the core F should the carriage overturn.
Patent GB-1276988-A (GB)
Title: Improvements in thermoelectric ignition safety devices
IPC: F23Q9/14
Filed: 1971-04-19
Abstract: 1276988 Thermoelectric ignition safety device JUNKERS & CO GmbH 19 April 1971 [20 March 1970 24828/71 Headings F4F and F4T [Also in Division H2] A thermo-electric ignition safety device for a gas burner comprises an ignition safety valve to cut off gas supply on flame failure, which valve is opened by axial depression of a control knob 13 and actuating rod 14, and a piezo-electric ignition device 11 to supply a spark which is operated by rotation of the knob 13 in its depressed position. The piezo-electric device 11 comprises an anvil 17, a holder 18 containing piezo-electric elements and a striker pin 21 arranged coaxially in a housing 16 and a hammer 22 slidably guided in the housing and urged towards the striker pin by a striker spring 25. The hammer 22 has a pin 23 which extends through guide slots 161 in the housing 16 and is acted on by cams 27 formed on the inner wall of a cylindrical sleeve 24 rotatably mounted around the housing. The sleeve 24 is coupled to the depressed knob 13 by a gear arrangement via idler gear 26 so that upon rotation of the knob and sleeve, the hammer 22 is cocked by leading edge 271 and fired. A locking mechanism may be incorporated to prevent reactuation of the piezo-electric ignition device when the ignition safety valve is open.
Patent GB-504022-A (GB)
Title: Improvements in or relating to the electrical control of tuning mechanism for radio apparatus
IPC: H03J5/14
Filed: 1937-09-13
Abstract: 504,022. Wireless receiving-apparatus. MITCHELL, F. A. Sept. 13,- 1937, No. 24839. [Class 40 (v)] [Also in Group XXXVIII] Upon a press-button 18 being depressed, a circuit from rectifier 21 is. completed over a contact 17, e.g. E, to energize a solenoid 10 which rotates, through a sector 9, the shaft 6 of the tuning element, the circuit being broken when. the contact passes on to the insulation between contact plates 13, 14 mounted on the shaft. In order to effect a change in the wave range, a button 28 or 32 is depressed to rotate the shaft to one of its extreme positions, projections 29, 31 engaging a pin 30 to actuate through a'linkage, the shaft 27 of a wave range switch. It may be arranged that in further positions of the shaft 24, the apparatus may be set for playing gramophone records and television reception. In a modification, Fig. 6 (not shown), the wave range changing pressbuttons control a polarized relay and the station selecting buttons may operate the wave range changing buttons, if necessary. Specifications 416,435, 416,775 and 501,370, [Group XXXVIII], are referred to.
Patent GB-1043275-A (GB)
Title: Automatic feed device for feeding carton blanks one by one to a machine
Inventor: JORGENSEN ARNE
IPC: B65H3/08
Filed: 1963-06-21
Abstract: 1,043,275. Feeding sheets. PAKKO-TRYK A.S. June 21, 1963, No. 24857/63. Heading B6B. Carton blanks 2 are separated sequentially from the bottom of a magazine 1 by a reciprocating sucker 5 which places the separated blank 2<SP>1</SP> opposite the bite of a pair of feed rollers 6, 7, the blank is then pushed between the rollers by a pusher 8, and the rollers feed the blank to engage an adjustable stop 12 in a blank processing machine, the arrangement being such that the length of the pusher 8 can be adjusted to suit blanks of different sizes. As shown, the rollers, magazine, sucker and pusher are carried in a frame 3 slidably mounted on guides 10 on the machine, and can be adjusted relatively to the machine by a rack or other means. The pusher 8 can be cam-operated or, as shown, operated by a piston and compressed air cylinder 9, and can be adjusted to suit different sizes of blanks, for example, by providing an adjustable finger 8<SP>1</SP> thereon. When the blank engages the stop 12 on the work-table 11, it may initiate a stroke by a piston 13 to operate on the blank. The distance between the rollers 6, 7 and the sucker 5 may be made adjustable.
Patent GB-462315-A (GB)
Title: Improvements in or relating to claw feed mechanisms for motion picture apparatus
IPC: G03B1/22
Filed: 1935-09-06
Abstract: 462,315. Kinematograph apparatus. KODAK, Ltd. (Eastman Kodak Co.) Sept. 6, 1935, No. 24864. [Class 97 (i)] In claw feed mechanism, the film-engaging surface of the claw is curved to an arc having its centre, during the feed stroke, in or adjacent to the plane containing the part of the film engaged by the claw ; the centre of the arc may coincide with the axis of the crank pin operating the claw, and the arc made by the movement of the crank pin during the feed stroke may intersect the plane. As shown in Fig. 1, the edge 15 of the claw is curved about the axis of the crank pin 4..The claw has a protuberance 16 and an inclined edge 18. A weak spring 5 may urge the claw into the perforation, or the inherent friction between the claw and the crank pin may be relied upon, the spring being omitted. The spring-pressed gate member 9 may be formed with a recess 17 limiting the inward movement of the claw.
Patent GB-441295-A (GB)
Title: Improvements in and relating to hair curling or waving irons
IPC: A45D1/06
Filed: 1934-08-29
Abstract: 441,295. Hair-curling appliances. MEHLES, L., 56, Derinton -Road, Upper Tooting, London. Aug. 29, 1934, No. 24866. [Class 131] The rod member 2 of a pair of curling-tongs is provided with a removable protective sleeve 3 of thin perforated metal. The sleeve is preferably closed at the end 5 which fits over the point of the rod member and is provided with a small handle 6 of heat insulating material, which handle may be pivoted to the sleeve. The channel member 1 of the tongs may be perforated as described in Specification - 408,449. The sleeve may be made of steel, aluminium, brass, copper or plated metal. Sleeves may be provided in the case of tongs having two or more sets of rod and channelled members.
Patent GB-1301602-A (GB)
IPC: C08G59/50
Filed: 1971-04-19
Abstract: 1301602 Piperidines CIBA-GEIGY AG 19 April 1971 [23 March 1970] 24874/71 Heading C2C [Also in Division C3] The 1 - methyl-, 1 - n - butyl-, 1 - isopropyl-, 1 - cyclohexyl - and 1 - benzyl - 4 - amino - 3- aminomethylpiperidine compounds are prepared by a two-stage process in which e.g. N, N<SP>1</SP>-bis-(#-cyanoethyl) -n-butylamine is added to Na dissolved in tert-butanol and eventually crystallized from toluene to yield 1-n-butyl-3- cyano-1,2,5,6-tetrahydropyridine. The latter is reduced by Raney nickel (in ethanol and ammonia) to yield 1-n-butyl-4-amino-3-aminomethylpiperidine
Patent GB-359619-A (GB)
Title: Improvements relating to turbo blowers and compressors
IPC: F04D29/46
Filed: 1930-08-20
Abstract: 359,619. Centrifugal blowers and compressers. ADAMSON & CO., Ltd., D. and McLEAN, S., Engineering Works, Dukinfield, Cheshire. Aug. 20, 1930, No. 24882. [Class 110 (i).] In a turbo blower or compresser, the output is controlled by a regulating disc d mounted on screwed spindles e so that it may be adjusted in the passage c leading to the suction eye of the first impeller a. The spindles e are rotatable in the packing ring g and carry pinions h which mesh with a spur wheel i so that, when one spindle is rotated by a handwheel j, all the spindles turn in unison. A regulating disc d may be provided at the eye of any or all of the impellers after the first.
Patent GB-174666-A (GB)
Title: Improvements in and relating to derails
IPC: B61K5/06
Filed: 1920-08-28
Abstract: 174,666. Hayes, S. W. Aug. 28, 1920. De-railing devices.-In a sliding hand-operated de-railer the block 6 is mounted in bearings on the base, the coacting bearings on the block being displaced substantially horizontally to compel railward movement of the block first to a position above and in contact with the side of the rail head and then vertically downwards until the block seats on the rail head. The forward bearing on the base has an abutment 16 which prevents withdrawal of the derailer by an horizcntal force. The forward bearing-surfaces comprise two lateral studs 13 on the block which slide in grooves 14 in the inner faces of the base walls. The rear bearing surfaces comprise a curved rib 8 on the block which slides on a rounded surface 9 on a cross-wall 3 and is confined thereto by two upstanding lugs 11 on the wall 3, one of the lugs being undercut to engage a rail 12 on the block. The block has a hand-hold 7, and also recesses 18, 19 which co-operate with an ear on the base to receive a padlock. The block operates a target stand by means of the lug 20 and rod 21. Specification 172,100 is referred to.
Patent GB-424978-A (GB)
Title: An improved device for playing a game of skill
IPC: A63F5/04
Filed: 1933-09-08
Abstract: 424,978. Roulette apparatus. BARKER, J., Larchfield, Roundhay, Leeds. Sept. 8, 1933, No. 24965. [Class 132 (ii)] Roulette apparatus comprises a disc or wheel like rotary member and a driving rotary member pressed into direct frictional engagement therewith by a resilient device adapted to be wound by hand and released to effect rotation of the wheel like rotary member. As shown, a metal or other disc 5 is rotatably mounted in a frame 3 provided with a handle 2, and is frictionally engaged by a sphere or roller 6 threaded by a doubled rubber band 7 anchored to projections 8 on the frame 3. Rotation of the disc 5 through a knob 4 twists the rubber band, so that on release, the band drives the disc through the member 6. The disc has markings 9 on one or both sides, coacting with a notch or arrow mark 10 on one or both sides of the frame 3 to indicate a score. The disc 5 may have a rubber rim and the member 6 a rubber periphery.
Patent GB-233241-A (GB)
Title: Paper making machines
IPC: D21F1/46
Filed: 1924-10-22
Abstract: 233,241. Seaborne, C. R. Oct. 22, 1924. Dandy rolls. - In a paper machine marking roll, the roll body H is covered with a hard rubber layer h vulcanized thereon. Superposed on this is a layer h<1> of soft rubber vulcanized on the layer h, and on the layer h<1> is vulcanized a layer h<2> of hard rubber on which the designs, type, or the like are formed. The roll is preferably slightly crowned to compensate for springing. The outer layer may be covered with one or more layers of textile fabric K. Instead of covering the roll body entirely, the three layers may be vulcanized on marking plates L, Fig. 6, which may be secured to the roll body H by screws M.
Patent GB-448314-A (GB)
Title: Improvements in and relating to the construction of floors and roofs
IPC: E04B5/18
Filed: 1935-09-11
Abstract: 448,314. Floors and ceilings. BOLTON & HAYES, Ltd., and BOLTON, J. F., Viking Works, Bolton. Sept. 11, 1935, No. 25209. [Class 20 (iv)] In order to prevent the formation of shadow lines on ceilings, a floor or roof comprises hollow tiles 2 separated by reinforced-concrete webs 3, of substantially narrower width than the tiles 2, on the bases of which are mounted small hollow tiles 5 to provide a flat surface on which plaster 6 is applied. Specification 114,984, [Class 20 (iv)], is referred to.
Patent GB-633195-A (GB)
Title: Improvements in electric selector switches or receiving devices for remote-control installations
IPC: H02J13/00
Filed: 1947-09-15
Abstract: 633,195. Actuation of switches; control of motors. LANDIS & GYR SOC. ANON. Sept. 15, 1947, No. 25223. Convention date, Sept. 9, 1946. [Classes 38 (iii) and 38 (v)] A switching device for a remote control installation has a synchronous motor which when started by a relay, rotates a shaft through one revolution, the shaft being also subjected to periodic axial movement during its rotation. This periodic axial movement is limited by a latching member which is moved aside on the further energization of the relay so permitting the full axial movement of the shaft to operate selected switch members. An audio-frequency voltage superimposed on the lines a, b momentarily energizes relay coil 2 to turn the relay armature 3, which closes contacts 9, 10 to energize the synchronous motor 11. The motor then drives the shaft 14, through gears 12, 13 through one revolution, the contacts 9, 10 being held closed by a cam 32, as the armature 3 returns to its original position. As the shaft 14 turns, a periodic axial motion is imparted to it by the engagement of a saw-toothed wheel 15 with a fixed abutment 20, the shaft 14 being biassed upwardly by a blade-spring 35. This axial movement is normally limited by a latchplate 4 attached to the armature 3, but on the energization of the relay coil 2 by a further impulse, the armature 3 moves the plate 4 aside so that the full axial movement, as determined by the depth of the teeth 19, may move an arm 22 a sufficient distance in a vertical plane to open or close the contacts 27, 30 of a selected switch unit 25, by lifting an insulating button 29 or 28. The audio-frequency impulse for this second energization of the relay is timed to occur at an instant when the shaft 14 is not bearing against the plate 4, that is, when the top of a tooth 19 is engaging the abutment 20. The switch arm 22 is adjustably attached to the shaft 14 by means of a slotted plate 21 fixed to the shaft 14, the arm 22 having a pin 23 engaging in one of the slots 24. This enables the position of the arm to be set so that when its upward movement occurs it is directly below one of the buttons 28, 29 of the switch units 25, which are arranged in a circle above the circular path in which the end of the arm 22 moves during its rotation with the shaft. The plate 21 may carry more than one arm 22 or alternatively several plates 21 may be used, each plate having an arm or arms co-operating with a bank of switch units 25. In a modification (Fig. 2, not shown), the teeth 19 of the wheel 15 may be of sinusoidal shape and engage with a roller carried by the fixed abutment. In a further modification (Fig. 3, not shown), the relay armature releases the contact 10, which is normally latched, to close the contacts 9, 10, and the cam 32 then moves the contact 9 to hold the contacts closed and at the same time relatch the contact 10 so that the contacts are opened when the cam has completed its revolution. Specification 494,792, [Group XXXVIII], is referred to.
Patent GB-1389335-A (GB)
Title: Inductive radio transmission lines
IPC: B61L3/22
Filed: 1972-05-30
Abstract: 1389335 Electrical installations SUMITOMO ELECTRIC INDUSTRIES Ltd 30 May 1972 [12 June 1971] 25277/72 Heading H2C An inductive radiotransmission line comprises at least two transmission pairs 1, 2 with a succession of crossover transpositions at, e.g. 4, 5, with equal transposition distance P, but at different locations for each transmission pair. Conductor supports 3 are located between crossing points 4, 5 at intervals P/2 and comprises a pair of metal frames 6 having a channel portion in which is placed an insulator spacer 7 of synthetic material, e.g. polyethylene, have parallel grooves which support conductors 11, 12, 11<SP>1</SP>, 12<SP>1</SP>. The frames 6 are joined by portion 9 which is supported by rod 10 and maintained at ground potential. In a further embodiment, (Fig. 4, not shown), the frame (6) completely encloses the conductors of the two wire lines. In another embodiment (Fig. 5, not shown), the metal frame has several parallel grooves (13) and each conductor is individually insulated.
Patent GB-253288-A (GB)
Abstract: 253,288. Brendle, J. April 14, 1925. Factory and like time records, card type.-In apparatus wherein the elapsed time is recorded the recording type elements are driven by the clock train and to give a direct record of such time allowance for pauses in the working time is made either in the scale of time divisions on the type elements or in the spacing of the teeth of a ratchet wheel driving the type elements. In the simplest form shown in Fig. 1, the day type wheels 1 are exchangeably mounted on the clock driven spindle 7 and are provided with type commencing at the starting time I and continuing until the II position followed by an' interval II-III and continuing from III to the end of the working period IV. Each hour may be divided into 100 divisions with type 00, 05, 10, 15, &c. Type for overtime may be provided in the interval IV-I. The type may be provided on arcuate portions exchangeably secured to a disc secured to the spindle 7. The individual type elements may be removable as shown in Figs. 4, and 6, wherein the type wheel is formed of two parts 8, 9 secured by screws 10 and provided with flanges 12 and 13, 14 respectively, the flange 13 being notched to receive headed type elements 16. In a modification shown in Fig. 9 the clock spindle 25 carries a ratchet wheel 23 with spaces corresponding to the non-working periods and teeth 26 adapted to actuate a lever 19 carrying a pawl 20 co-operating with pins 22 on a wheel 1 with a set of type elements arranged in a continuous manner thereon. In another form as shown in Fig. 10 the type wheel 1 is advanced every six minutes and has type for recording the hours and tenths of an hour. To the wheel 1 is attached a ratchet wheel 26 with teeth the pitch of which corresponds to the unit of time of the type wheel 1. This ratchet wheel 26 controls a type member 28 for recording hundreds of an hour by means of an arm 31 and a stepped cam 34 driven by the clock and rotated through a revolution in six minutes, the arm 31 being raised by each tooth 26 to permit the projection 33 on the arm 31 to co-operate with the steps of the cam 34. In a further modification the type elements for the morning, afternoon, and overtime periods may be arranged on separate wheels secured to the clock driven shaft but relatively adjustable thereon. The printing hammer is made laterally movable to co-operate with the particualr wheel for the time being in use.