baber/WOPTO huggingface dataset:
Patent GB-743565-A (GB)
Title: Improvements in remotely controlled bore mining machine-automatic course controller
IPC: E21D9/00
Filed: 1953-08-27
Abstract: 743,565. Automatic steering control systems- UNION CARBIDE & CARBON CORPORATION. Aug. 27, 1953 [Aug. 30, 1952], No. 23660/53. Class 38 (4). As shown in Fig. 3 an automatically guided bore mining machine comprises a power-driven tractor 13 carrying power-driven cutter heads 35 on a front section 12 which may be pivoted about a transverse horizontal axis and/or a longitudinal axis to control the course of the machine through the earth. The angle of elevation of the front portion 12 is detected by a liquid-damped pendulum 42, Fig. 4, which is actually mounted in a casing 37 on the front portion 12 so as to swing about a transverse axis 14. Pendulum 42 operates a potentiometer 46 which is arranged with a potentiometer 53 in an A.C. bridge circuit so that deviation in the angle of elevation from a value determined by the setting of potentiometer 53 results in a bridge output between leads 51, 91 being applied to an electronic relay unit 54. Within unit 54 the appropriate one of two thyratron valves is energized to operate a corresponding relay so that a lead 57 or 58 is energized and solenoidoperated valves 22 operate a hydraulic servomotor 15 in the direction necessary to correct the attitude of the front portion 12 by moving it about axis 14. Similarly tilt of the front portion about a longitudinal axis 23 is detected by a second damped pendulum 41 which is also actually mounted in the appropriate position within casing 37. Pendulum 41 operates a potentiometer 45 which is combined with a potentiometer 56 in an A.C. bridge circuit the output of which, between leads 112, 127 is also applied to unit 54 within which a further pair of thyratron operated relays control, through leads 59, 60 and controller 32, an electric servomotor 28 operating to maintain the front portion 12 at a desired angle (usually horizontal) about longitudinal axis 23. Other Figures (not shown) feature switches for disengaging automatic control, push buttons for manual operation of the servomotors, and meters and lamps to indicate various conditions of the control.
Patent GB-640998-A (GB)
Title: Improvements in or relating to machines for the production of bottle capsules
IPC: B21D51/48
Filed: 1947-08-27
Abstract: 640,998. Shaping capsules. BRUUN, O. J. Aug. 27, 1947, No. 23695. [Class 100 (ii)] A machine for the production of cup-shaped bottle capsules and the like of thin pliable metal foil comprises a ring portion 4 having a smooth convergingly coned bore p through which the capsule is adapted to be passed to partially compress the folds in the capsule which are afterwards fully compressed by passage into a matrix 5 so that a capsule with a relatively smooth surface is formed. An annular support 1 having inner and outer parts 1a and 1b is provided with serrations m and k which engage similar serrations n on a support 2. A blank is fed between supports 1 and 2 which are then moved relatively together while a punch 6 moves axially to carry the blank through the support 2, the serrations m of which are continued along the bore O. The blank then forms a conical cup having a series of folds around its periphery. The folds are flattened by engagement with the bore p of the ring-portion 4, after which the cup is then passed on the end of the punch 6 into the matrix 5 having a conical bore q which compresses the folds so that they lie flat in overlapping relationship. The cup is removed from the matrix between a plunger 7 and the punch 6 which are both moved axially to the right. The cup is stripped from the punch 6 by the edge of the ring-portion 4. Alternatively, the punch 6 may be provided with an ejector rod or compressed air passed axially through the punch may be used to strip the capsule from the punch 6, or a U-shaped extractor member may engage the punch 6 and remove the cup to a position opposite a reciprocating plunger which nests the cups in a storage compartment. The matrix 5, ring-portion 4, and the support 2, may'be formed integrally.
Patent GB-650801-A (GB)
Title: Improvements in and relating to excitation system for alternating current dynamo-electric machines
IPC: H02P9/22
Filed: 1947-08-27
Abstract: 650,801. Automatic voltage control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 27, 1947, No. 23722. Convention date, Aug. 27, 1946. [Class 38 (iv)] The voltage of an alternator which is selfexcited by a rectifier supplied from current transformers and a potential transformer, is further regulated by D.C. saturating windings on the current transformers, the saturating current being controlled by a carbon pile regulator according to the generated voltage. The field 2 of the alternator 3 is supplied by a rectifier 5 which is fed by the star-connected current transformer 9 and by the potential transformer 6 which has a high reactance. The secondary windings of these two transformers are so connected that when the power factor of the alternator output is unity, their voltages are displaced by 90 degrees, therefore at lagging power factors there is a component of voltage additive to the voltage of the potential transformer to increase the field excitation, and conversely for leading power factors, the current transformers 9 also have saturating windings 12 supplied with D.C. by a battery 14 in series with a carbon pile regulator 13 actuated in response to generator voltage so as to reduce the A.C. fed to the rectifier as the output voltage tends to rise. In a modification, Fig. 3 (not shown), the potential transformer and current transformers feed separate rectifiers which are connected'in parallel to supply the field, power factor compensation being accomplished by means of three coupling transformers each having one winding in series with one phase of the potential transformer secondary and the other in series with the secondary of current transformer.
Patent GB-1426589-A (GB)
Title: Circuit breaker with barrier
IPC: H01H9/34
Filed: 1973-05-18
Abstract: 1426589 Circuit breakers WESTINGHOUSE ELECTRIC CORP 18 May 1973 [1 June 1972] 23734/73 Heading H1N In a circuit breaker having within its housing a trip device with adjusting means 53 there is an adjusting tool access opening in the wall 9 of the housing adjacent the adjusting means 53, in which opening there is a barrier supported by the housing and comprising a fixed part 101 and a part 103 movable to close the opening. Both parts are retained in a groove 93 in the wall of the housing and initially the movable part of the barrier is in the open position so that adjustment of the trip device can be carried out. When adjustment is complete, this movable part is slid shut and a tang 105 snaps into interlocking engagement with the upper surface 106 of the fixed part of the barrier and retains the moving part in the shut position so that it cannot be opened from outside the housing. Vent openings 107, 109 are provided in the barrier parts. The circuit breaker is described as having thermal tripping means in the form of a bimetal strip 51 and also electromagnetic tripping means, the adjusting means 53 of the trip device being an adjustable belt through the bimetal strip which acts on a trip bar (49), Fig. 2, not shown. The movable contacts of all poles are pivoted on a common bar and rotate to make or break contact with a fixed contact in an arc extinguishing unit. The tripping means is connected via a toggle and overcentre spring to the movable contact, and a handle is provided for manual operation and resetting.
Patent GB-477787-A (GB)
Title: Electric discharge tube
IPC: H01J1/18
Filed: 1936-08-31
Abstract: 477,787. Thermionic valves. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG. Aug. 31, 1936, No. 23789. Convention date, Aug. 31, 1935. [Class 39 (i)] A cathode 3 is supported at the ends by mica or other insulating plates 1a and spaced intermediately by two or more similar plates 1b, all the plates being mounted on one or more metal frame members 2, and provided with holes 6 which surround or nearly surround the cathode ; the cathode consists of a coated filament, or of a coated wire wound on a filament. The holes in the intermediate plates may consist of slots extending from the edges, and the diameter of the holes is not more than 0À3 mm. The frame members 2 are of U- section pressed to secure the plates. Two filament sections are tensioned by a spring 11, and are connected at the other end with a U-shaped member 5, which is subsequently cut at the centre to form connections. The frame may be mounted within the grid 8 so as to bear against the grid wires, or the grid may be wound on the frame.
Patent GB-1300928-A (GB)
Title: 0-aza-9-oxafluorenes
Inventor: JOHN DEREK COCKER
IPC: C07D213/643
Filed: 1969-05-09
Abstract: 1300928 1-Aza-9-oxafluorenes GLAXO LABORATORIES Ltd 30 April 1970 [9 May 1969] 23840/69 Heading C2C [Also in Division A5] Novel 1-aza-9-oxafluorenes are prepared (a) by cyclization of a 2-phenoxy-pyridine-3- diazonium salt (which is unsubstituted in an o-position of the phenoxy group) using a catalyst or by photolysis; (b) by photolysis of a 2-(2<SP>1</SP>-halophenoxy)-pyridine or a 2-phenoxypyridine-2<SP>1</SP>-diazonium salt (which is unsubstituted in the 3-position of the pyridine ring); (c) when a nucleophilic residue is present at the 2- and/or 4-position, by reaction of a 2- and/or 4-halo-1-aza-9-oxafluorene with a nucleophilic reagent; (d) when a nucleophilic residue is present at the 2-position, by reaction of a 2- unsubstituted 1-OR<SP>3</SP>-1-aza-9-oxafluorene quaternary salt, wherein R<SP>3</SP> is an aliphatic or araliphatic group, with a nucleophilic reagent; (e) when an oxygen atom is attached to the ring nitrogen atom, by reaction of a 1-aza-9-oxafluorene with an organic or inorganic peracid; (f) when a 6-substituent is present, by direct electrophilic substitution of the corresponding 6-unsubstituted compound; (g) when the starting material for process (d) above is required, by reaction of the corresponding N-oxide with an aliphatic or araliphatic reactive ester; and (h) when a 4-halo substituent is present, by reaction of a 4-unsubstituted 1-aza-9-oxafluorene-1- oxide with a phosphorus oxyhalide. 2 - Phenoxy - pyridine - 3 - diazonium salts (which are unsubstituted in an o-position of the phenoxy group) are prepared by condensation of a phenol having a free o-position with a 2- halo-3-nitropyridine, reduction of the resulting 2-phenoxy-3-nitropyridine and diazotization of the 2 - phenoxy - 3 - aminopyridine so obtained. 2-(o-Chlorophenoxy)-pyridine is prepared by reaction of o-chlorophenol with 2-chloropyridine in the presence of potassium hydroxide.
Patent GB-702495-A (GB)
Title: Cash registers and similar accounting machines
IPC: B01D21/00
Filed: 1951-10-15
Abstract: 702,495. Cash-registers. NATIONAL REGISTRIER KASSEN GES. Oct. 15, 1951 [Oct. 21, 1950], No. 23935/51. Class 106 (1) The latch mechanism of a Shipley-type differential for a cash register, or similar machine, comprises a pair of inter-acting spring- connected pawls mounted on the differential arm 20, with their pivots on the same radial axis, one pawl 18 normally locking the other 22 in engagement with a transordinal rod 27, or other driving element, engagement of the pawl 18 with an operated amount key 1 causing relative movement of the pawls and disengagement of the pawl 22 from the rod 27, the pawl 22 then locking the pawl 18 in adjusted position. In the mechanism shown, the spring 200 interconnecting the pawls normally maintains a locking surface 24 on the pawl 18 in engagement with a surface 25 on the pawl 22 so that the latter is locked to the driving rod 27. Engagement of a finger 17 on the pawl 18 with a pin 2 of a depressed key, or a pin 16 of a zero-stop arm 11, rocks the pawl 18 counterclockwise to release the member 22 for counterclockwise movement to break its driving connection with the rod 27. The spring 200 then holds the pawl 22 under a step 66 in the pawl 18 to lock it in adjusted position with a pin 19 in engagement with an aligning notch 67 of the key frame 4. When the rod 27 returns, it re-engages and restores the pawl 22, so releasing the member 18 to allow the differential arm 20 to be returned. Differentially-adjusted indicator.-A minimum-movement beam 44 is pivoted at 45 to the differential arm 20, and is rocked up to a sleeve 47 on the main shaft 150 by an arm 62 driven by a cam 58. The beam 44 is connected by a link 42 to a sector 41 which adjusts an indicator drum 149. Zero-stop mechanism.-A depressed key 1 cams a notched detent plate 7 upwardly and an ear 9 on the plate releases the zero-stop arm 11 for counterclockwise spring movement to ineffective position. A step 69 in the arm 11 then engages under the ear 9 to lock the detent plate 7 and hold the key depressed until completion of the machine cycle, when a release arm 14 restores the zero-stop arm 11 releasing the detent plate and key.
Patent GB-358189-A (GB)
Title: An improved bunghole bush for casks and the like
IPC: B65D39/08
Filed: 1930-08-11
Abstract: 358,189. Bushes for bungholes. McLAREN, J. D., 18, Stewart Terrace, Gorgie, Edinburgh. Aug. 11, 1930, No. 23944. [Class 21.] A bunghole bush comprises a tubular member 6 threaded at 7, 8 to two different diameters and a ring 3 of L-section, threaded internally and with webs 4 adapted to be driven into the wood of the cask &c. More than two ribs may be used which may all be parallel so that they may have the direction of the grain of the wood. Recesses 11 facilitate rotation of the member 6.
Patent GB-227157-A (GB)
Title: Improvements in or connected with fluid pressure engines, compressors and the like
IPC: F01B9/02
Filed: 1923-09-26
Abstract: 227,157. Spence, W. L. Sept. 26, 1923. Crank-actuated pumps; counterbalances. - In radial-cylinder pumps with cylinders at 90‹ and opposed pistons connected by slotted crossheads which engage a common crank with counterweight, the balance is effected by arranging an additional weight on the counterweight which will be equivalent to the weight of a single piston line, including the two pistons and the connecting- crosshead, concentrated at the crank radius. In the air engine shown each piston B, B<1> is an aluminium casting or a thin steel-plate, cupped pressing lightened by tooling or grinding. The lower piston may be closed by a welded-on disc. The piston-rods C, C<1> are thinly webbed and staved to the slotted T-section crossheads and are each made in one piece therewith by drop forging, pressing, or welding. The rod ends are tapered within the pistons, screwed, and secured by nuts. The piston lines have equal weight, but coaxial pistons may be of different diameters or weights. The admission is effected by a rotary valve having two sets of ports for forward and reverse running which is driven by helical gearing F<2> on the main shaft, and which is moved longitudinally by air pressure for reversal. The exhaust is controlled by the piston and passes to an annular exhaust box or silencer K<4> shown with the cover removed. Specification 193,245, [Class 80 (i), Gearing, Belt &c.], is referred to.
Patent GB-439481-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/20
Filed: 1935-08-28
Abstract: 439,481. Exciting dynamos. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 28, 1935, No. 24077. Convention date, Aug. 29, 1934. [Class 35] An auxiliary brush generator has two sets of field poles, one shunt excited from constant potential brushes and the other wholly or partly excited in shunt from the load brushes. In the form shown, the windings on the saturated poles 6 and the coil 16 on one unsaturated pole 7 are across a main brush 3 and a third brush 5 and are so excited at constant voltage while the winding 9 is in parallel with the load brushes 3, 4 and with coil 16 produces a cross field in the direction of the arrows on poles 7. The windings 9, 16 may be wound on both poles 7 or alternatively coil 16 may be omitted. Interpoles may be provided. The generator may be driven by a synchronous or other motor. Specification 159,374, [Class 35], is referred to.
Patent GB-1525446-A (GB)
Title: Conveyor comprising a driven flexible belt for stepwise advancing moulds
IPC: B22D33/00
Filed: 1977-06-09
Abstract: 1525446 Intermittently driving a conveyer belt DANSK INDUSTRI SYNDIKAT AS 9 June 1977 [24 Sept 1976] 24162/77 Heading B8A A conveyer belt 7 is moved intermittently by having its longitudinal edges transported between members 10 and 15 which are urged into gripping engagement with the belt by the action of an inflated tube section 14. The members 10 and 15 extend parallel with the belt and are rigid with a member 9 which is mounted on bearings 12. The belt carries moulds having pouring cavities at vertical joint faces between successive mould parts.
Patent GB-507136-A (GB)
Title: Improved method of and means for polishing the surface of precision ground articles
IPC: B24B5/04
Filed: 1937-09-07
Abstract: 507,136. Polishing rolls &c. WALLS, A. G. Sept. 7, 1837, No. 24374. [Class 60] Rolling mill rolls, &c. are polished by means of a rotating buff, the operative surface of which moves across the scratches formed by grinding or previous buffing. As shown in Fig. 1, on the wheel head 6 of a machine employed for grinding the work, shown as a roll 4, which may be cambered, is mounted an adjustable bracket 15 to which is secured a housing 14 in which runs a vertical spindle carrying a buff 12. The periphery of the buff is shaped to fit the surface of the roll 4 and the buff spindle is driven from a pulley 7, attached to the grinding-wheel spindle, by a belt 8 passing over guide pulleys 9, 10 on the housing 14; during polishing the buff follows exactly the same path as did the grinding-wheel during the grinding of the roll. In a modification, the buff acts with its flat end face, its spindle lying horizontal or nearly so and being supported in a housing carried by a plate secured to the wheel guard the plate is adjustable so that the buff may make point contact or line contact with the work. The buffs may be driven by electric motors in place of the belt drive. The buffs may be machined true by a tool carried by a bar mounted between the centres of the grinding- machine, and the work may be finished by a cloth lap supported on a shaped face of a casting mounted on the housing 14. Specification 420,441 is referred to.
Patent GB-440904-A (GB)
Title: Improvements in or relating to sun-bathing cabins
IPC: E04B1/346
Filed: 1934-08-24
Abstract: 440,904. Sun-bathing cabins. BAKER, J. R., 619, Liverpool Road, Ainsdale, near Southport, Lancashire. Aug. 24, 1934, No. 24395. [Class 20 (i)] [See also Group VI] A sun-bathing cabin is made with a side wall 8 hinged on an horizontal axis, so as to open out to admit the sun, in combination with a screen 31 forming an extension of the side 8 when this is in the open position and with end screens 12 extending over the triangular spaces between the cabin and the ends of the side 8. The part 6 of the roof on the same side may be hinged to open up, and may be fitted with a bracket 14, 16 to hold the roof in the open position shown in dotted lines. Trough-shaped ventilators 22, 23 may be fitted in walls of the cabin and in the door 21. The cabin may be mounted on a pivot 4 and rollers 2 on a base 3.
Patent GB-714860-A (GB)
Title: Improvements relating to turning and planing machining processes
Inventor: WILLIAMSON DAVID THEODORE NELS
IPC: B23B29/12
Filed: 1951-10-19
Abstract: 714,860. Turning; planing. FERRANTI, Ltd. Oct. 20, 1952 [Oct. 19, 1951], No. 24396/51. Class 83 (3). In a turning or planing process of the kind in which work is operated on by a single-edged cutting-tool, a method of performing the cutting operation comprises vibrating the cutting edge of the tool alternatively into a relatively greater and lesser extent of cutting engagement with said work-piece at a high audio or supersonic frequency. Apparatus for carrying out the process in a turning operation comprises.a tool 13 secured to a tapered member 15 of non-magnetic material, the base of which is brazed or welded to a magnetostrictive or other vibrator 16. As shown, this consists of a stack of ferromagnetic laminations 17 forming a transformer-like core consisting of two limbs 19, Fig. 2, joined by two yokes 20, the limbs carrying coils 22. The vibrator is secured between clamps 24 to a tool-rest 25 by means of bolts 26, the clamps are arranged at the centres of the limbs 19 where there is a vibrational antinode. The tool is vibrated during cutting in a direction 28 normal to the axis of the work 10, but the vibrator may be arranged at rightangles to the direction shown so that the tool vibrates tangentially to the point of cutting. In a further modification two vibrators arranged in the two ways referred to above may be connected at the tool-carrying ends to produce a combined movement. The frequency is chosen not to coincide with the natural resonance of the work and by this means it is stated that with slender work the work is not bowed or displaced by the cutting and accuracy of machining is improved.
Patent GB-839616-A (GB)
Title: Disconnects for aircraft
Inventor: OLIVEAU JOHN V
IPC: F16L37/42
Filed: 1958-07-29
Abstract: 839,616. Quickly-disconnectible couplings. AEROTEC CORPORATION. July 29, 1958, No. 24430/58. Class 99(1). A disconnectible coupling for the electric connections and oxygen supply to aircraft personnel, comprises an upper block 33 seated on a horizontal plate 11 and having a transverse slot extending upwardly from its lower surface and a vertical bore extending downwardly to the slot, a lower block 27 held to the under surface of the plate and having a transverse slot extending downwardly from its upper surface and a bore extending upwardly to the slot, each slot having therein a pair of horizontally-spaced, detent-holding elements 34, 35 and 28, 29 and a detent element 17 consisting of a flat plate bifurcated above and below a widened mid-portion 18 thereof, which rests on the plate 11, to form a pair of spaced, upwardly-extending legs 23, 24 to enter the slot in the upper block 33, and a pair of downwardlyextending legs 19, 20 to enter the slot in the lower block 27. The upper and lower ends, respectively, of the upper and lower legs are widened sidewise outwardly so that upon inward springing of the legs those ends pass between the detent-holding elements of the respective blocks and are engaged by the elements upon passing the latter. There is an upper detentlocking and release rod 50 slidable vertically in the bore of the upper block and spring pressed to enter between the legs 23, 24 when the upper ends of the legs are above the elements 34, 35, and a lower locking and release rod 44 slidable vertically in the bore of the lower block and spring pressed to enter between the legs 19, 20 when the ends of the legs are below the elements 28, 29. As shown, the blocks 27, 33 are secured to a bracket 11 attached to the ejector seat of an aircraft and terminal blocks 71, 76 for the connection of electric wires, the lower block 27 being provided with a spring-loaded valve 88 which is displaced from the seating thereof by a conduit secured in the upper block 33. The rod 44 is fastened by a lanyard 49 to the aircraft so that upon ejection of the seat the rod is pulled downwardly to allow withdrawal of the detent legs 19, 20 from between the elements 28, 29 and to free the block 27 from the bracket 11. The block 33, attached to an airman's suit, is manually releasable by the locking rod 50 slidable vertically in the block and biassed downwardly by a spring 53 to enter between the detent legs 23, 24 ; means is provided for allowing the rod to be set in different angular locking positions and to prevent accidental withdrawal of the rod, the latter being rotatable to and from the locking position in which it cannot be drawn upwardly.