baber/WOPTO huggingface dataset:
Patent GB-974482-A (GB)
Title: Remote controls
IPC: H01H19/62
Filed: 1963-05-13
Abstract: 974,482. Electric selective signalling. CATERPILLAR TRACTOR CO. May 13,1963 [June 15,1962],No. 18812/63. Heading G4H. [Also in Division G3] In a remote control system for master and slave transmissions of a vehicle e.g. an earth moving machine, a cam 51 in the slave transmission control maintains all but an adjacent pair 54d, e of a plurality of series-connected switches 54a.. 54f closed, a master control 26 places an electrical signal on one of a plurality of conductors 86a.. 86e each of which is connected to a series connection between a pair of the switches 54a.. 54f, and an electrically-actuated servo 62 is arranged to move the cam 51 in one direction or the other if it receives a signal from the first or the last respectively of the series of switches 54a.. 54f. In Fig. 3A, master control 26 comprises a cam 31 which is set in one of five angular positions when the vehicle driver sets the master transmission gear ratio (three forward and one reverse ratio and neutral are possible). Cam 31 thus closes one of five switches 34a.. 34e to energize one of lines 86a.. 86e. If the position of cam 51 does not correspond to that of cam 31, the potential on the selected line 86a. . 86e is communicated to one of two lines 88, 91 thus actuating one of two solenoidoperated valves 106, 107 of a hydraulic servo 62 to bring cam 51 into correspondence and change the gear ratio of the slave transmission to that of the master transmission. The master and slave transmissions may be associated with main and auxiliary engines in a tractor and a scraper connected to it respectively. A pressure switch 82 is provided to cut off the power supply if the main engine stops unexpectedly, thus preventing the slave control overriding the master control. A switch 83 enables the slave gearing to be put into neutral whatever the state of the master gearing. Fig. 4 (not shown) shows a fail-safe modification in which an extra set of switches and an extra cam both identical to those of the master control 26 are provided in the slave control 27 to energize a signal line if the master and slave transmissions are in the same state. If the slave control 27 ceases to follow the master control 26, this line is de-energized thus extinguishing a lamp and deenergizing a solenoid-operated hydraulic valve to pass fluid to set the slave transmission in low gear. A fluid-actuated switch is also provided which sets the slave in low gear whenever the master is so set. In other applications, the servo 62 could be electrical or pneumatic. Specification 974,481 is referred to.
Patent GB-714548-A (GB)
Title: Improvements in radio receiving circuits with silent tuning
IPC: H03G3/26
Filed: 1952-07-25
Abstract: 714,548. Radio receiving circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1952 [July 28, 1951], No. 18861/52. Class 40 (5) In a receiver with automatic volume control (A.V.C.) and which is muted by applying a negative bias to a low-frequency amplifier, there is applied to the A.V.C. controlled stages, a further voltage in opposition to the A.V.C. voltage, which is reduced in value when the valve to which muting is apllied is cut off. I.F. amplifier 1 feeds the detector 10 over a pair of inductively-coupled tuned circuit 6, 7 and demodulated signals are fed to an audio amplifier 16 over volume control 11 and blocking condenser 15. A.V.C. is obtained from the signal detector 10 over resistances 12, 31, delay being introduced by means of a diode 13 which is given a positive bias via resistance 30. The muting circuit comprises a diode 18 fed from a tuned circuit 8 which is inductively coupled to the circuit 7 and also coupled by condenser 9 to the circuit 6, the arrangement being such that no voltage appears on the diode 18 if the receiver is correctly tuned. Upon detuning, a negative potential is produced across the diode load 20 and is applied, over resistances 21, 25 and 22 to bias back the valve 16 : in the absence of a signal this bias is provided by rectification of noise voltages at the diode 18. The cathodes of the diodes 10, 13 are returned to the cathode of the valve 16 so that there is also applied to the valve 1 the voltage appearing across the cathode resistances 26, 27, in opposition to the A.V.C. voltage. The potential across resistance 27 is prevented from falling below a predetermined value by means of a diode 34 with its anode connected to a suitable point of positive potential. To counterbalance the positive potential derived from resistances 26, 27 when the valve 16 is operative, the valve 1 is provided with a corresponding cathode bias by means of resistances 3, 4 ; this bias is stabilized by connection of a resistance 38 to the positive supply line. In an alternative embodiment, Fig. 2 (not shown), the A.V.C. voltage is derived from a separate diode, delay being introduced by returning its load resistance to a point on the cathode path of the valve 16.
Patent GB-613671-A (GB)
Title: Improvements relating to keys for locks
IPC: E05B19/00
Filed: 1946-06-24
Abstract: 613,671. Making keys for locks. WILCOX, J. T. June 24, 1946, No. 18899. [Class 83 (ii)] [Also in Group XXV] In a key, Fig. 1, having a shank 1 of greater thickness than the bit 2, that portion of the shank adjacent the root of the bit is reduced, or that part of the bit adjacent the shank is increased to the thickness of the shank, so that inwardly directed intersecting surfaces are avoided and finishing is facilitated. In the form shown in Fig. 1, in which the bit 2 is parallel sided, the shank 1 behind the bit is reduced to the same thickness. In a similar form the sides of the bit converge slightly towards the shank. In the form of Fig. 4, the shank 1 is reduced by converging surfaces 1d. Fig. 5 shows a modification in which the shank 1 is reduced by divergent curved surfaces 2d. In another form the sides of the bit are tangential to the shank and converge towards the free edge of the bit. The invention is applicable to pin or pipe keys.
Patent GB-724235-A (GB)
Title: Improvements in and relating to the handling of biscuits
Inventor: PAGE ALFRED CORNELIUS
IPC: B65B57/14
Filed: 1952-07-28
Abstract: 724,235. Packaging biscuits. WRIGHTS BISCUITS, Ltd. June 26, 1953 [July 28, 1952], No. 18978/52. Class 94 (1). [Also in Group XXX] A device,for preventing charges of biscuits 10 from running forward during step-by-step feeding across a surface 12 towards a tin etc. 13 comprises pivoted shutters 16, spaced corresponding to the step-by-step movement and checking the charges until pivoted clear by positive force applied to the biscuits by the pusher 14, The shutters are loosely held by magnets 17.
Patent GB-1384025-A (GB)
Title: Corner adaptors for duct expansion joints
IPC: F16L5/00
Filed: 1973-04-19
Abstract: 1384025 Duct expansion joints JOHNSMANYILLE CORP 19 April 1973 [24 April 1972] 19014/73 Heading F2G A seamed or seamless corner of a flexible junction piece 28, interconnecting two rigid ducts is reinforced, internally and externally, by interconnected corner plates 42 and 40, respectively. The plates are clamped by means of bolts (86) to duct flanges 34. A metal baffle 96 (Fig. 4, not shown) necessitates the use of an additional gasket 98.
Patent GB-444873-A (GB)
Title: Improvements in and connected with lighting installations for dirigible vehicles
IPC: B60Q1/12
Filed: 1934-06-27
Abstract: 444,873. Systems of lighting for road vehicles. MATHA, H., 4, Chemin de la Solidarite, Algiers. June 27, 1934, Nos. 19036 and 19037. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 7, 1935]. [Class 38 (iv)] [See also Group XI] In a system of lighting for road vehicles, either of a pair of auxiliary lamps fixed with their axes directed towards the sides of the road are switched on automatically by the steering gear as the vehicle makes a turn to either side. In the form shown., a split collar 16 clamped on the tie-rod 17 is formed integrally with an arm 10 which is connected to a finger 9 slidably mounted in a slot 8 in a lever 7 carrying a switch arm 6, the latter co-operating with contact plates 2, 3 connected respectively to the auxiliary lamps 4, 5. The arm 6 is connected to the rear light AR and is connected to a battery 12 upon the closing of any one of three contacts 11, 14, 15 which switch on respectively the ordinary headlights, anti-dazzle lights, and the side lights. In a modification, the finger 9 is carried by a part which is fixed to and oscillated by means of the spindle of the steering-gear.
Patent GB-959017-A (GB)
Title: Improvements in or relating to devices for use with coaxial lines
IPC: H01P5/08
Filed: 1960-05-30
Abstract: 959,017. High-frequency impedance networks. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 30, 1960 [June 2, 1959], No. 19043/60. Heading H1W. The inner or outer conductor of a coaxial line is provided with helical or spiral portions whereby an axial magnetic field is generated. As shown in Fig. 1, the outer conductor 1 of a co al line 1, 2 is slotted to provide a number of parallel conductor portions 11, 12 &c., each of length equal to one quarter wavelength (#/4) at the signal frequency. The ends of the portions 11 are connected to the inner conductor 2 by means of portions 11<SP>1</SP>, 12<SP>1</SP> &c. which follow a spiral path in a radial plane. The rotational component of the current in the portions 11<SP>1</SP> produce an axial magnetic field which may be linked with a winding 19 forming the termination of a symmetrical transmission line. Alternatively, the coaxial cable 1, 2 may be coupled to a further coaxial cable which is terminated in the same manner as the cable 1, 2, the cables being arranged coaxially with their ends near each other. In a modification (Fig. 2), the second coaxial cable 30, 31 is terminated by a Hall disc 20 of e.g. indium antimonide. This is arranged in a radial plane between electrodes formed by the inner conductor 31 and parallel portions 22<SP>1</SP>, 23<SP>1</SP> &c. of the outer conductor 30 each of length #/4. If the plate is arranged in the alternating field of the device of Fig. 1 and a magnetic field applied at rightangles to the plate, a Hall voltage is produced between the electrodes. In a modification (Fig. 4), a Hall cylinder 50 is arranged between the ends of radial portions 62<SP>1</SP> of an inner conductor 61 and parallel axial portions 52 of an outer conductor 51. A radial magnetic field is applied to the cylinder. The device of Fig. 1 may be modified by imparting a helical formation to the ends of the conductor portions 11 and forming the radial portions 11<SP>1</SP> as straightsided segments (Fig. 3, not shown). As shown in Fig. 5, the inner conductor 2 of line 1, 2 is directly connected to the inner conductor of a further line, and the outer conductors are connected by parallel conductor portions 71 having an intermediate part of helical formation. The straight parts of conductors 71 have a length equal to #/4. The axial field produced by the helix is linked with the terminal winding of a symmetrical two-conductor line 40. The inner conductors may be provided with helical portions instead of the outer conductors. In this case, the coupling winding is situated between the inner and the outer conductors. Where both conductors have helical portions, these have different senses of rotation. In all the modifications the spiral or helical parts of the line may be used to provide local inductance, terminal or otherwise. Specification 953,331 is referred to.
Patent GB-1017681-A (GB)
Title: Improvements in xerography
IPC: G03G15/04
Filed: 1962-06-12
Abstract: 1,017,681. Electrophotographic developers. RANK XEROX Ltd. 12, Jun. 1962 [June 12, 1961], No. 19048/62. Heading G2H. A xerographic developer composition comprises a single species of divided toner particles and two different species of substantially larger carrier particles the toner being electrostatically adherent upon and positively charged by one of the carriers and electrostatically adherent upon and negatively charged by the other carrier. The developer composition may be formed by mixing Xerox (Registered Trade mark) Type 10 developer with Xerox reversal developer Type 10 which both include a common toner material but different carriers to produce opposite polarities. Alternatively, a mixture of Copyflo (Registered Trade Mark) P1 and Copyflo N1 developers may be used The composition can be applied at a single development step, such that negatively charged particles deposit in the areas indicated in Fig. 2B and the positively charged particles deposit in the areas indicated in Fig. 2C on a plate 10 carrying a halftone charge pattern. The use of such a composition for producing half-tone images is described in Specification 1,017,682. The developed image formed with the composition provides a development of solid areas uniform in visual appearance yet consisting of image areas of positively and negatively charged toner particles. A half-tone charge pattern may be applied to plate 10 in the manner described in Specification 1017683.
Patent GB-422063-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/26
Filed: 1933-07-05
Abstract: 422,063. Knitting-machines. STANDARD - TRUMP BROS. MACHINE CO., Laconia, New Hampshire, U.S.A.-(Assignees of Houseman, H. E. ; Laconia, New Hampshire, U.S.A.) July 5, 1933, Nos. 19116 and 19117. Convention dates, Jan. 24 and May 2. [Class 74 (ii)] Relates to the production of wrap patterns from wrap guides or fingers 38. The invention is described as applied to a rotary needle cylinder machine. Mechanism for shogging the carrier under tension is provided such that accurate alignment of the fingers and needles is secured, irrespective of inaccuracies in the height of the pattern chain lugs. The fingers are mounted in a head 36 carried on a tubular member 34 attached to the bobbin plate 28 and journalled in a bracket 32. The plate 28 is driven by an epicyclic gear train 26, 24, 14, 12 in which is included a two part splined shaft 22 with universal joints 20. The shogging is performed by imparting step-by-step movements to an element of the train. The top end of the shaft 22 is mounted in a carrier 40 joumalled concentric to the gear 26 in the bracket 32. An extension 42 of the carrier 40 is provided with ratchets 46, 48, 50, the teeth of ratchets 46, 50 being opposed to the teeth of ratchet 48. The ratchet 46 is driven by a pawl 62 on a lever 54. The ratchets 48, 50 are retained by detents 78, 86 and 88 carried on a pin 80. The detent 78 is tripped by a rod 74 on the lever 54 while the detents 86, 88 which are of different lengths are tripped by rods 94, 96 on levers 56, 58. The teeth on ratchet 50 are coarser than those of ratchet 46. By alternate tripping of the detents 86, 88, through members 94, 96 which move when levers such as 77 are selected, the carrier 40 can be given step-by-step movement in reverse direction under control of a weight or spring. The arrangement shown requires the provision of a panel of substantial size in which no wrapping may occur. By providing the detent 78 with a cam piece and the rod 74 with a spear-shaped head it is possible to reduce the width of the panel considerably. The levers 54, 56, 58 are engaged by three levers 65 arranged side-by-side and these again by levers such as 77 pivoted at 81 to an oscillating pawl carrying arm 79. The position of the levers 77 is determined by the pattern chain 107, the lugs on which swing a bell-crank lever 91 to various positions across the line of levers 77. A member 89 pivoted on the lever 91 permits the levers 77 to pass in one direction without being operated. Specification 422,059 is referred to.
Patent GB-757213-A (GB)
Title: An improved hydraulic drive for machine tools
IPC: B23Q5/033
Filed: 1953-07-09
Abstract: 757,213. Rotary pumps. WALDRICH, O., and KAPP, B. July 9, 1953 [July 10, 1952], No. 19116/53. Class 110(2) '[Also in Group XXIX] A machine tool table is actuated by rams 1<SP>1</SP>, 2<SP>1</SP> secured thereto and operating in fixed cylinders 1, 2 which are connected to the inlet/outlet of a reversible continuously variable output pump 4 and through a valve 7 with the inlet/outlet of a reversibly continuously variable output pump 3, both pumps being of the vane type, in which the casings are jointly movable to control the displacement and direction of output. The valve 7 and the control mechansm of the pumps 3, 4 are controlled through common linkage 14, 15 and gear 16 by the machine tool table so that during the forward stroke the pump 3 is wholly by-passed outlet to inlet and during the reverse stroke both pumps 3, 4 operate in parallel. In a modification the linkage connecting the valve 7 and the pump control mechanism may be disconnected so that both pumps operate in parallel. The control mechanism may be controlled by a, hydraulic piston supplied by a pump adjusted by the,table.
Patent GB-1062003-A (GB)
Title: Reading stored information
IPC: G11C11/02
Filed: 1965-05-06
Abstract: 1,062,003. Magnetic storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 6, 1965 [May 22, 1964], No. 19133/65. Heading H3B. An elongated magnetic storage element has longitudinal anisotropic properties, information being stored in one direction or the other along the hard magnetic axis and non-destructively read-out by switching towards the easy axis. The elongated element may be in the form of a hollow cylinder, Fig. 1 (not shown), the stored information being read-out by applying a pulse to a coaxial conductor. The longitudinal magnetization may be established by current in an encircling winding 14 or by an adjacent permanent or electromagnetic field. A matrix of such storage elements may be formed, Fig. 4 (not shown).
Patent GB-1299827-A (GB)
Title: Conveyor mechanism for handling blanks
Inventor: MUNCH WERNER
IPC: B21D43/02
Filed: 1971-06-07
Abstract: 1299827 Converting rotary motion to reciprocating motion L SCHULER GmbH 7 June 1971 [5 June 1970 8 May 1971] 19197/71 Heading F2Q [Also in Division B8] Blanks 19 from an element 25 of a press (not shown) are conveyed by a reciprocating carrier 1 towards a stripping pawl 24 where the blanks are deposited ready for further forming. The motion of the carrier 1 is produced by a main crank drive 10 and an auxiliary crank drive 17. Main crank 9 is connected by links 7, 8 to a shaft 5 which reciprocates parallel to a stationary rack 6. A further rack 3 forming part of the carrier 1 is engaged by a gear 4 which, together with a gear 5 engaging the rack 6, is secured to the shaft 5. The main crank 10 is slidably supported in guides 11 and is reciprocated by a link 12 connected to a pin 18 of the crank 17. This crank is driven at half the speed of the crank 10 and the throw of the crank 17 is adjustable while the crank is rotating. The combination of the two crank motions provides that the carrier 1 moves to the left by differing amounts on alternate strokes and, by synchronizing the main crank drive 10 with a reciprocating drive for the press, it is ensured that the blanks 19 fall from the element 25 into the same position on the carrier 1, i.e. adjacent a shoulder 22. Magnets 23 restrict undesired movement of the blanks while supported on the carrier. In Fig. 2 (not shown) the auxiliary drive comprises a lever (26) which is reciprocated by the press element (25).
Patent GB-659995-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B27/22
Filed: 1947-07-18
Abstract: 659,995. Eccentrics. FAIRWEATHER, W. C. (Singer Manufacturing Co.). July 18, 1947, No. 19225. [Class 122(i)] [Also in Group VII] An adjustable eccentric for use in sewing-machines, particularly for varying the feed, comprises inner and outer eccentrically-apertured cylindrical members on a shaft, with adjusting means comprising a motion-modifying linkage connecting the shaft with one of the members or connecting the members; the linkage causes greater relative movement between the two members than between either member and the shaft and thus reduces or eliminates the shift of the high point of the eccentric relative to the shaft. In the form shown in exploded view, the shaft (not shown) has fixed to it members 50, 44 and carries between these members the inner eccentric member 56, on which the outer eccentric member 59 is mounted. The member 50 has a transverse channel to receive a slidable member 53 with forks 67. 68 to engage respectively a part 66 integral with the member 59 and a shoe 64 mounted on a pivot pin 62 on the member 56; these parts constitute the motion-modifying connection hetween the shaft and the outer member 59, by which any movement of the shaft relative to the inner member 56 results in greater movement of the member 59. The members are normally locked together by a detent 71 slidable in a guide on a disc 69 integral with the member 56 to engage a toothed ring 75 housed in flanges 70 of the disc and locked to the member 44; to adjust the eccentric a plunger (not shown) is depressed to engage a notch 82 in the detent 71, thus locking the disc 69, and force its teeth clear of the ring 75, rotation of the shaft then producing relative movement between the members 59, 56 as stated. A modification is referred to in which the locking device is applied to the outer eccentric member 59 instead of the inner one.
Patent GB-1122103-A (GB)
Title: Production of hydroxylamine sulphate
IPC: C01B21/082
Filed: 1966-05-02
Abstract: Hydroxylamine sulphate is produced by reduction, in aqueous sulphuric acid solution, of nitric oxide by hydrogen, with a Pt metal containing catalyst.  The reaction temperature (35-85 DEG  C.) is chosen in relation to the molar ratio (0.3-1.5) of sulphuric acid to hydroxylamine sulphate plus ammonium sulphate (by-product), using a lower temperature for a lower ration and a higher temperature for a higher ratio. The process may be multi-stage, with a lower ration and temperature in each succeeding stage. The reaction may be continuous and each stage take place in a separate vessel, or may be discontinuous and in a single vessel with the temperature adjusted as the molar ratio alters with time as the reaction proceeds.  According to an example, 75 DEG  C. corresponded to a molar ratio of 1.5, 65 DEG  C. to 0.7, 55 DEG  C. to 0.4 and 45 DEG  C. to 0.3.
Patent GB-244808-A (GB)
Title: Improvements in or relating to electrical heating apparatus
IPC: H05B1/02
Filed: 1924-08-14
Abstract: 244,808. Law, J. A., (Hudson, W. E.). Aug. 14, 1924. Controlling heating systems. - In a heating system comprising separate coils or sets of coils 59a, 59b and 59c and thermostatic means for connecting the coils in different mutual relationships, the coils or heaters are fitted to a boiler connected to a hot-water radiator system and are supplied with current by a source S of constant voltage. The control is effected by three thermostats 23, 33, 43 which are responsive to the temperatures of the room, the water in the boiler, and the outside atmosphere respectively. The thermostats 23, 33, 43 control the circuits of solenoids 26, 36, 46 through the medium of motors 21, 31, 41 and snap-switches 22, 32, 42. The solenoid 26 controls a switch 27 in the main circuit and the solenoids 36, 46 are fitted to the arms of a rotary switch to which the heaters are connected. The solenoid 46 is also adapted to operate a circuit-breaker 37 so that the boiler thermostat is ineffective when the solenoid 46 is energized. The rotary switch is provided with contacts 56. 60, 61, 62, and brushes 57. 58, and is normally held in the mid-position with brushes 58 engaging contacts 60. In this position the heaters 59a. 59<b>, are in series with one another and in parallel with the heater 59c. When energized the solenoids 36, 46 operate the switch to bring the contacts 61 or 62 into engagement with the brushes with a consequent connection of the heaters in series or parallel.