baber/WOPTO huggingface dataset:
Patent GB-806665-A (GB)
Title: Improvements in and relating to counter circuits
Inventor: BACON KENNETH FRANK
IPC: H03K23/76
Filed: 1956-07-05
Abstract: 806,665. Electronic counting - apparatus. MULLARD RADIO VALVE CO. Ltd. July 5, 1956, No. 20863/56. Class 106 (1). [Also in Group XXXIX] A counter comprises a ring of bi-stable state reactive circuits inter-coupled by diodes and arranged so that one stage only is in the higher (large current) stable state. Each of ten circuits in a decimal counter comprises a winding 6 on a core, e.g. of Permalloy, in series with a condenser C3. A 200 Kc./sec. supply is applied across all stages over a condenser C1 which permits only one stage at a time to be in its higher state. A stage may be triggered from its lower to its higher state by a trigger winding having two phase-opposed sections 4, 5. One end of this winding is connected to a lead A1 to which a 10 v. bias is applied while the other end is connected over a diode D3 to which is applied the potential of the point connecting the inductor and capacitor of the previous stage, after rectification by a diode D2 and smoothing by a resistor R2. When the lower stage is in its lower state, this latter potential is 2 v. and consequently, an 8 v. input pulse on a lead A3 applied over condenser C4 will not pass the gating diode D3 which is biased to 10 v. However, when the lower stage is in its higher state, the potential of its mid-point is 10 v. and the diode D3 passes an input pulse on lead A3 so that the next stage is triggered into its higher state, the lower stage reverting to its lower state. An R.F. choke 7 provides a D.C. return path for the diodes.
Patent GB-1343868-A (GB)
Title: Apparatus for the construction of electric circuits
IPC: H02B15/04
Filed: 1972-05-05
Abstract: 1343868 Electric couplings G SONCINI 5 May 1972 [5 May 1971] 21001/72 Heading H2E [Also in Divisions H1 and G5] Hollow cubical plastics blocks 14 containing electronic components are fitted into seats 13 in a plastics frame 10 to make up a circuit for experimental or teaching purposes. The components are connected to flexible metal tongues 19. The tongues 19 of adjacent blocks are forced into contact by tapered slots 20, a wiping action on insertion of the second tongue 19 cleaning the contacting surfaces. The top faces 15 of the blocks 14 carry the standard component symbols, and have notches 21 to allow the tongues 19 of adjacent blocks 14 to pass. Blocks 14 are removed by pressing upwards from below. Blocks 14 containing batteries or other components needing frequent replacement have removable sides. Sockets are provided for connection to components, such as loud-speakers, too large to fit into blocks 14. The blocks 14 may have shapes other than cubes.
Patent GB-422618-A (GB)
Title: Improvements in or relating to flat knitting machines
IPC: D04B11/20
Filed: 1934-07-18
Abstract: 422,618. Knitting-machines. STOLL, H., and STOLL, R., (trading as REUTLINGER STRICKMASCHINENFABRIK H. STOLL & CO.), Reutlingen, Wurtemberg, Germany. July 18, 1934, No. 21034. Convention date, July 19, 1933. [Class 74 (ii)] To enable certain parts of a pattern made on a flat knitting-machine to be repeated as often as desired, the card chain can be advanced or retired by variable amounts in accordance with the prearranged setting of certain cards. This movement is started and stopped by a pattern wheel 32. A jacquard cylinder 1 rotatable on an horizontal slide 3 is connected by clutch plates 5-7 to a shaft 8 carrying a sprocket 9. This arrangement permits the cylinder 1 to make a stroke while being in driving connection with shaft 12, chain 10 and chain wheels 11, 9. On the shaft 12 are mounted two ratchets 13, 14 with teeth pointing in opposite directions and two loose bluffing discs 15, 16 moving in unison. The disc 16 is connected by pinion and rack gear 18 to a slide 19. The card brought into operation displaces the slide 19 to the extent determined by the pattern-wheel 32. The discs 15, 16 are thus rotated and their gaps 15<1> placed in position for determining which ratchet 13 or 14 shall be operated. The ratchets are driven by pawls such as 23, 25 mounted on a member 21 operated by a cam 20 on a shaft 22. The extent and direction of the rotational movement is thus determined by the preceding card. Should a repeat of the pattern require, for example, ten cards, the cards are perforated in such a way as to come into action in the serial order 1, 3, 5, 7, 9, 10, 8, 6, 4, 2. The card chain is moved forward two cards at a time, as far as card 9 and then by one card to card 10. Card 10 reverses the movement, by two cards at a time, as far as card 2, which reversing by one card, brings card 1 again into action and so on. If it is required for the chain to go on to card 11 after, say, 8 repeats, a pin is placed in the eighth hole 331 of the pattern wheel 32. When card 10 comes up for the eighth time this pin lifts a lever 47 and, by connections 50-53, sets the slide 19 so that the chain is moved forward one step to the eleventh card. When the entire pattern is nearing completion the last card causes pawls 40, 44 to release the drum 32, which is returned to original position by a spring.
Patent GB-1148726-A (GB)
Title: Improvements relating to compositions exhibiting an antiferro-ferromagnetic transition
IPC: C01B31/30
Filed: 1966-05-06
Abstract: 1,148,726. Carbides; borides. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 6 May, 1966 [6 May, 1965], No. 20182/66. Heading C1A. [Also in Divisions C7, H1 and H2] A magnetic composition of perovskite structure has the general formula Mn 3-z M<SP>(1)</SP> z Ga 1-y M<SP>(2)</SP>C 1-x Z x  wherein M<SP>(1)</SP> is at least one transition metal, (i.e. Sc-Ni, Y-Pd and La-Pr and the lanthanium and actinium series) preferably Cr, Fe, Co, Ni or Pd; M<SP>(2)</SP> is at least one metal of the transition metals, M<SP>(1)</SP>, and Groups IB, II B , IIA, III A  and IVA, preferably Mg, Al, Cu, Zn, Ge, Ag, In or Sn; Z is nitrogen and/or boron or is absent; and x, y and z have respective upper limits 0À20, 0À10 and 0À15. The compound has an anti-ferro-ferromagnetic transition point or an anti-ferro-ferri-ferromagnetic transition in the range between -180 and - 97 C. Specified compositions are: Mn 3 GaC Mn 3 GaC 0À9 N 0À1  Mn 3 GaC 0 . 98  Mn 3 GaC 0À8 N 0À2  Mn 3 GaC 0À97  Mn 3 GaC 0À9 B 0À1  Mn 3 Ga 0À95 Ge 0À05 C Mn 2À94 Fe 0À06 GaC Mn 2À925 Fe 0À075 GaC Mn 2À85 Cr 0À15 GaC 0À95 N 0À05  Mn 3 Ga 0À9 Zn 0À1 C 0À9 N 0À1  The compositions are made by a series of heatings and grindings performed on a mixture of the elements or binary or ternary compounds thereof at temperatures between 300 and 900 C., the last heating being at 800-900 C. in a quartz container and lasting 200 hrs.
Patent GB-762762-A (GB)
Title: Improvements in or relating to optical projection screens
Inventor: PEARCE RALPH REGINALD
IPC: G03B21/62
Filed: 1953-07-30
Abstract: 762,762. Projection screens. ELECTRIC  & MUSICAL INDUSTRIES, Ltd. July 30, 1954 [July 30, 1953], No. 21114/53. Class 97(1) A projection screen such as shown in elevation in Fig. 4 and in horizontal section in Fig. 5 is covered, on the side facing the projector, with spherical. lenticulations 1 while the margins of the opposite face carry sets of inclined facets 6, 8 in register with the lenticulations, this face being substantially covered with an opaque coating. This coating may be reflecting, apart from the part on the steps between the facets, which are blackened. Alternatively a transmitting screen is produced by providing apertures in the opaque coating in the vicinity of the foci of the lenticular elements. The inclinations of the facets may increase towards the screen edges.
Patent GB-135977-A (GB)
Title: Improvements in or connected with Rear Axle Structures for Motor Road-vehicles.
Inventor: SCOTT ALBERT COMMON
IPC: B60B35/16
Filed: 1918-12-18
Abstract: 135,977. Scott, A. C. Dec. 18 1918. Axles.-In the method of producing axle casings consisting in slitting the middle portion of a hollow tube and swaging apart the divided portions to produce the central frame with its in wardly projecting flanges, a tube of the form shown is used, having an enlarged middle portion. The ends may be reduced by forging to take spring brac kets and wheel bearings.
Patent GB-531416-A (GB)
Title: An improved system for controlling radio receivers
IPC: H03J5/14
Filed: 1939-07-21
Abstract: 531,416. Control systems. RADIO GRAMOPHONE DEVELOPMENTCO., Ltd., and PARKINSON, W. R. July 21, 1939, No. 21211. [Class 40 (i)] A remote control for an automatic pressbutton tuning wireless receiver comprises, in addition to the usual buttons 1-8 for selected stations a button R which, when depressed connects in the power circuit a switch 21 energizing a motor driving a selector disc of known type for selecting the wave length, and a coupled switch 22 energizing a second motor operating selector switches for the particular station circuit desired, all being shunted across those in the receiver. The rotation of these switches is effected on a common shaft 28 by means of impulses on a ratchet wheel 29 delivered by an armature 30 of an electromagnet 31. At the remote position a hand operated shaft 40 bears a ratchet wheel 41, having a similar number of teeth to wheel 29. Which, on rotation, makes and breaks a switch 44 in the circuit of the magnet 31 to cause the shaft 28 to move in step with the shaft 40. At the same time, through switch 46, indicator lamps 47-54 corresponding to the push buttons 1-8 are illuminated. In one position of the shaft 28 a switch 27 breaks the mains circuit to the set but not that to the transformer supplying the impulses.
Patent GB-422217-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/34
Filed: 1933-07-28
Abstract: 422,217. Windscreen-cleaners. HOUDAILLE HYDRAULIC SUSPENSION CO., Ltd., and KING, A. W., 69, Drayton Gardens, Fulham Road, London, MIDLAND MOTOR BODY CO., Ltd., and HALLWOOD, R., Aldbourne Works, Coventry. July 28,1933, No. 21294. [Class 138 (i)] A windscreen - cleaner system for vehicles comprises a movable window adapted to swing about a horizontal axis at the top of the windscreen, and more than one wiper arm and a driving motor which are mounted on the bodywork of the vehicle, each arm being adapted to be moved at will by the driver of the vehicle into a position in which it is clear of the screen. In the construction shown in Figs. 1 and 3, a casing 14 housing a motor and transmission mechanism for oscillating a wiper 18, is secured to a cross-member near the scuttle 11. The member also carries a shaft 16 for a second wiper 17. A sprocket wheel 25 is fixed to the shaft 19 carrying the wiper 18, and a sprocket wheel 26 is connected through a clutch 27 with the shaft 16. The shaft 19 is connected through a clutch 28 with the motor and transmission mechanism. The clutches 27, 28 are operated by handles 30, 31, respectively, whereby the wipers may be declutched and turned into positions clear of the screen. The sprocket wheels 25, 26 are engaged by short lengths of chain connected by wire 34, a tension spring being provided to maintain the chain drive taut. In a modification shown in Fig.4, the driving motor is disposed away from the wiper shafts 16, 19, being adapted to drive the shaft 16 by means of pulleys 37, 49 and chains 47, 50, connected by flexible wires 51. The shaft 19 is driven from the shaft 16 by means of pulleys 36, 52, and chains 46, 53, connected by wires 54. Clutches are provided through which the wipers are operatively connected to the transmission mechanism. As shown in Fig. 6, the wiper 17 is fixed to the shaft 16, to which is also fixed the pulley 36 connected through a chain 46 to the pulley associated with the wiper 18. The pulley 37 for transmitting the drive from the motor is rotatably mounted on a bearing member 39 having a hollow extension 40 surrounding the shaft 16. A spring 43 acts to press the pulley 36 towards the pulley 37. The adjacent faces of the pulleys are formed to provide a dog clutch. To disconnect the wiper 17 from the transmission mechanism, the shaft 16 is moved axially to separate the pulleys, and then turned through a right-angle so that the wiper is clear of the screen. According to the Provisional Specification, the motor and transmission mechanism may be mounted on a fixed part of the vehicle above the movable windscreen.
Patent GB-517289-A (GB)
Title: Method and arrangement for suppressing high voltage peaks which become superimposed upon a transmission through disturbances in wireless reception
IPC: H03G11/00
Filed: 1938-07-18
Abstract: 517,289. Wireless receiving systems. MEIER, K. H. July 18, 1938, No. 21301. [Class 40 (v)] Static and like disturbances are suppressed or limited by passing the signals through a compressor device of known type in which a valve with an expotential characteristic reduces the varying signalsounds to a constant mean amplitude. The output is then rectified and passed through a limiter valve, where the disturbing voltages are smoothed out, the resulting currents being passed through an expanding stage so as to offset the compression and restore the signals to their original form. As shown, the incoming signals are fed to an amplifier 15 which is supplied with A.V.C. voltage from a diode 16 in the plate circuit. A second diode 24, in parallel with the first, supplies grid-control voltages to the compressor stage 33 and the expander stage 34. Between 33 and 34 is a screened-grid amplitude " filter " or limiter stage 39, with a diode 38 shunted across the input circuit. The compression may be effected on the low-frequency instead of the high-frequency side of the receiver.
Patent GB-1431197-A (GB)
Title: Film pull-down mechanism for motion picture apparatus
IPC: G03B1/22
Filed: 1973-05-04
Abstract: 1431197 Intermittent film feed EASTMAN KODAK CO 4 May 1973 [4 May 1972] 21314/73 Heading G2E An intermittent film feed mechanism comprises a film claw 22, which is moved in and out by a follower 42 engaging a cam 37 mounted on a shaft 36, a shaft 106 which is driven synchronously with shaft 36 e.g. by gearing 102, 104, a ratchet 108 secured to shaft 106 and a pawl 114 engageable with the ratchet 108 and operatively coupled to a cam 110 rotatably mounted on shaft 106, the arrangement being such that when the pawl engages the ratchet it drives the cam 110 which operates means e.g. plate 126, for restraining the claw from movement in a direction for engaging the film. The cam 110 engages a cam follower 124 mounted on plate 126. For approximately two thirds of a revolution of the cam the plate 126 is pivoted clockwise against the bias of spring 125 so that a pin 128 mounted on the plate engages a tab 131 on the claw to pivot the claw about 26 and out of engagement with the film and cam 37. The ratio of gears 102, 104 is 1 to 3 thus the minimum feed speed is reduced from 6 frames/sec. (corresponding to six revolutions/sec. to cam 37) to 2 (in which claw 22 engages cam 37 on every third revolution). The pawl 114 is held in engagement with the ratchet by a spring 115, and is disengaged by a tab 120 mounted on a slide 51.
Patent GB-766256-A (GB)
Title: Improvements in or relating to brazing or like operations
Inventor: WHITEHEAD ERIC JAMES
IPC: B23K1/19
Filed: 1953-07-31
Abstract: The following metals in percentage composition may be brazed by flux dip brazing (see Group XXII). <TABS:0766256/II/1>
Patent GB-239222-A (GB)
IPC: H05B3/62
Filed: 1925-08-27
Abstract: 239,222. Studienges fiir Wirtschaft & Industrie. Aug. 28, 1924, [Convention date]. Resistance materials.-A high temperature heating body for a furnace nonsists of a mixture of silicates, a flux and finely divided metals placed in an open fireproof channel e in which it is heated to render it conductive. Heating and fusing may be effected by passage of current from electrodes b through a layer of conductive materials c!, such as granular carbon, spread over the mixture. Carbides may be added to the mixture. Suitable metals are lead, aluminium and chromium and the flux used is fluorspar. The Specification, as open to inspection under Sect. 91 (3) (a) describes an inlet and outlet h for varying the cross-section of the resistance. This subject-matter does not appear in the Specification as accepted but forms the subject-matter of Specification 254,756.
Patent GB-868069-A (GB)
Title: Improvements in and relating to flame cutting burner machines
Inventor: HANCOCK LESLIE JOHN
IPC: B23K37/02
Filed: 1956-07-12
Abstract: 868,069. Cutting by fusion. HANCOCK & CO. (ENGINEERS) Ltd. Oct. 1, 1957 [July 12, 1956; June 4, 1957], Nos. 21523/56 and 17693/57. Class 83 (4). In a flame cutting-machine having its burner or burners 1 carried by a floating mechanism 3 supported by a wheel 4 adapted to run on the surface X of the plate to be cut and maintain the burner at a constant height, a second running wheel 13 is mounted so that it can drop over the edge of the plate when it reaches the edge and actuate means to support the burner and/or cut off the oxygen and fuel gas supply thereto. The running-wheel 4 is carried by a bracket 5 adjustable for burner height by a screw 7. The second wheel 13 is mounted on a lever 10 pivoted at 11 to the burner holder 2 and having a pawl 14 engageable, when the wheel drops, with a fixed rack 15 thereby to support the burner. In another embodiment, Fig. 3, two oppositely-inclined burners 20, 22 and a vertical burner 21, for cutting double-bevelled edges to a plate are adjustably mounted on a holder 23 secured to a bar 24 carried by a bracket 26. The latter is mounted on tne yoke 29 of a floating mechanism consisting of parallel pivoted links 30 pivoted at 32, 78 to a vertical bar 33 depending from a cantilever 34 of a carriage 35 running along a track 36. Bracket 26 also carries another bracket 27 carrying the running-wneel 25 which supports the floating mechanism. The second running-wheel 37 7 is carried by a vertically-movable rod 38 mounting a pivoted rocker arm 40 for actuating a microswitch 45. When the wheel 37 drops over the edge of a plate, the rocker arm 40 closes the switch 45 which opens through a relay 47, Fig. 5 (not shown), a solenoid valve controlling the supply of compressed air to a clamp 69, 76 Fig. 6 (not shown), which locks the arm 30 and hence prevents the burners from falling. Simultaneously a timing mechanism 84, Fig. 7 (not shown), is energized and this opens a solenoid-operated valve 90, Fig. 8 (not shown), which admits air to a cylinder 83 to raise a piston-rod 82 and arm 70 locked to the link 30 whereby the burners are raised. The timing mechanism also controls solenoid valves 107, 110, 111, Figs. 9, 10 (not shown), for shutting off the supply of oxygen and fuel gas and it also stops the carriage driving motor. This apparatus is preferably used for cutting large rectangular plates and may comprise a longitudinallymovable gantry carrying two heads for cutting the longitudinal edges of the plates and two other gantries with transversely movable carriages supporting cutting-heads for the transverse edges of the plates.
Patent GB-1142906-A (GB)
Title: Improvements in methods of making gratings
IPC: E04C2/42
Filed: 1967-05-09
Abstract: 1,142,906. Making gratings. A. MENTIS. 9 May, 1967 [20 May, 1966], No. 21571/67. Heading B3A. [Also in Division D1] A metal grating comprises bearer bars 1 interconnected by cross stays in the form of rods 2 which are threaded through openings 3 near the top edge of the bars 1 and are secured in position by subsequently flattening the portions of the rods 2 extending between the bars into a rectangular cross-section. After positioning the rods within the openings in the bars 1 the grating is forwarded by feed roll 9 to cause the rods to pass between rollers 8 to effect the flattening. Subsequently the cross stays are turned through 90 degrees to cause the narrower edges to project uppermost.
Patent GB-1345023-A (GB)
Title: Automatic telephone answering apparatus
IPC: H04M1/654
Filed: 1971-04-19
Abstract: 1345023 Telephone answering machines, distinguishing speech signals PIONEER ELECTRONIC CORP 19 April 1971 [10 Feb 1970] 21653/71 Headings H4Kand H4R A telephone answering machine includes circuitry for switching it to a standby condition after a predetermined time set on a first timer circuit or after a period of time, set on a second timer circuit, shorter than the predetermined time in the absence of voice signals or in the presence of operating tones. Ringing current on the line L 1  L 2  is detected in full wave rectifier 2 and charges capacitor C2 up to the supply voltage when transistor Tr1 becomes non- conducting and transistor Tr2 conducts to operate relay Y1. Operation of relay Y1 causes operation of the answering machine to reproduce the answering message and prepare to record the caller's message. Capacitor C3 in the first timer circuit 3 starts to discharge when Y12 closes and when its voltage reaches a predetermined level transistor Tr1 will conduct to de-energize relay Y1 and return the machine to the standby condition shown. Part of the incoming message signal after amplification passes to discriminator circuit 6 where tones having a duration of less than 0À4 seconds, e.g. voice signals operate transistor Tr3 causing capacitor C9 to be charged and discharged. The Schmitt trigger circuit Tr4, Tr5 also changes its state to prevent capacitor C8 in the second timer circuit 7 from charging. In the absence of signals capacitor C8 will charge up to provide a signal, after about 10 seconds, to transistor Tr1 causing relay Y1 to drop. Similarly continuous tone signals or signals having a duration of more than 0À4 seconds pass through the circuit formed by R4, R5, C7 and cause transistor Tr5 to be turned off so that capacitor C8 is charged.
Patent GB-837078-A (GB)
Title: Improvements in or relating to toy guns and ammunition therefor
IPC: F42B8/06
Filed: 1958-07-07
Abstract: 837,078. Ammunition DIE CASTING MACHINE TOOLS Ltd., and MILLS, A. R. Oct. 31, 1958 [July 7, 1958], No. 21732/58. Class 9(1) [Also in Group XV] Ammunition for a toy gun comprises a cartridge case 10, e.g. of brass, having a circular aperture 12 in the base 11 and a removable bullet 13 which holds a percussion cap 15 against the base 11. The bullet which may be hollow and formed from zinc alloy by die casting has a circumferential rib 14 which abuts the mouth of the case 10 and engages abutments 17 in the bore of the gun to prevent ejection of the bullet. The trigger-operated hammer of the gun has a small boss which enters the opening 12 to fire the cap 15. Gas passages may be formed around the bullet as in Specification 834,743.
Patent GB-1431487-A (GB)
Title: Hand cleaner of rotary brush type
IPC: A47L11/22
Filed: 1973-05-08
Abstract: 1431487 Surface cleaning appliance J HAYASHI 8 May 1973 [19 May 1972]  21786/73 Headings A4F and A4K A surface cleaner comprises a body 10 which is constructed for manual gripping and has an elongate opening (18), Fig.3 (not shown), in bottom surface 17, and substantially parallel pressure rollers 21 and rotary brush 24, the brush 24 projecting through the opening 17 and, when instressed, beyond the surface engaging plane of the rollers 21. Means including drive transmission wheels transmit rotary drive from the pressure rollers 21 to the brush 24. The drive transmission wheels may, as shown, comprise two wheels 22 one on each roller 21, and a driven wheel 25 on the brush, the wheels 22 driving wheel 25 via friction wheels, gear-wheels or (as shown) via an endless belt. The rollers may be of rubber and have substantially the same axial extent as the brush and rotate the brush in the opposite sense to that of the rollers 21 so that the brush 24 removes dust momentarily adhered to a roller 21 by frictional contact therewith, the dust falling into compartments formed in the lower half of the body 10. Brushes or rubber, plastics or cloth squeegees 31 in the path of the endless belt 28 sweep dust toward the rotary brush 24.