baber/WOPTO huggingface dataset:
Patent GB-983403-A (GB)
Title: Forging hammer
IPC: B21J7/24
Filed: 1961-06-12
Abstract: 983,403. Forging. EUMUCO A.G. FUR MASCHINENBAU. June 12, 1961 [June 11, 1960], No. 21195/61. Heading B3H. An hydraulic forging hammer driven by a constant delivery pump 8 has a pressure liquid container 7 interposed between the pump and the working cylinder 5 and forming an oscillating system. The tup 2 is connected to a working piston 4 whose annular under surface 21b is open continuously to the container 7 filled exclusively with pressure liquid and which is charged by pump 8 through check valve 10, pipe 9 and pressure controller 22a. The pump draws from an oil tank 18 and has a safety valve 31 and a by-pass 11, 12 for use when the hammer is idling. A larger diameter free piston 23 with a throttle opening 24 is disposed above piston 4, and moves between fixed abutments. When the pressure in container 7 reaches a predetermined value, the pressure controller 22a actuates valve unit 14, 19 which admits pressure to chambers 28, 15, whereby the tup 2 descends to strike a blow. Shortly before impact the tup operates electric contacts which act through electro-hydraulic or electro-pneumatic means to reverse valve 14, 19. This places chamber 28 and pipe 25 in communication with exhaust pipe 17 and the tup rises due to rebound energy and the pressure on face 21b. Some of the liquid in chamber 15 is released through throttle aperture 24 but the pressure in this chamber causes piston 23 to move upwardly until it closes the outlet to pipe 25 and this piston then acts as a brake for the upward movement of the tup. It is stated that the length of the upstroke remains constant irrespective of the amount of rebound. In another embodiment, Fig. 1 (not shown), the piston 23 is omitted and separate inlet and exhaust valves control the pressure in chamber 15; excess pressure is prevented by a relief valve. A throttle valve may be fitted in the exhaust pipe.
Patent GB-686341-A (GB)
Title: Metal cover pieces for earthenware teapots, coffee pots, hot water jugs or other receptacles
Inventor: CORNBERG TONY
IPC: A47G19/14
Filed: 1950-08-28
Abstract: 686,341. Teapot cosies and stands. STAFFORD TRADING CO. (BIRMINGHAM), Ltd. Aug. 3, 1951 [Aug. 28, 1950], No. 21200/50. Class 128. A teapot has a felt lined metal cosy a held in position by a clip h engaging the lid of the pot. An insulating base i is held to a lower rim on the pot by clips j.
Patent GB-422963-A (GB)
Title: Improvements relating to television
IPC: H04N3/237
Filed: 1933-07-29
Abstract: 422,963. Television. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshageh, both in Berlin. July 29, 1933, No. 21333. Convention date, July 30, 1932. [Classes 40 (iii) and 40 (v)] In a generator of saw-tooth oscillations for scanning, the image-control circuit and the line-control circuit both contain two potentiometers, one 15, 17 for varying the shape of the image and the other 16, 18 for varying the position. The potentiometer 15, 17 has such a resistance that the current through it is always less than 1 per cent of the current charging the condenser 3, 4. The other potentiometer has a very low resistance. A condenser 19 in the line-control circuit prevents leakage current from the cathode-ray tube terminal 28 affecting the current charging the condenser 4. The imagecontrol and line-control circuits are earthed at such points 20, 21 that no compensating current flows in the earth leads, and are fed from the same source 31. The condensers 3, 4 are discharged by hot-cathode glowdischarge valves 5, 6 of similar characteristics. Decoupling 22, 23, 24, prevents reaction between the line-control and image-control potentials, or the image-change circuit is fed through a filter which prevents the passage of frequencies higher than the image-change frequency. A resistance 13, 14, in the cathode lead of the valves 1, 2 through which the condensers 3, 4 are charged, neutralizes the effect of fluctuations in the supply voltage. The anode circuits of the charging-valves are surrounded by screens 11, 12. The circuits may be fed through neon-tube potentiometers, iron-wire hydrogen resistances provided in the heating circuit of the charging-valves, and the discharging-valves 5, 6 heated from individual secondaries, Fig. 6 (not shown).
Patent GB-1475435-A (GB)
Title: Vehicle bogie assembly with power transmission
IPC: B60B35/14
Filed: 1975-05-20
Abstract: 1475435 Driving tandem axles VALMET OY 20 May 1975 21396/75 Heading B7H A vehicle bogie comprises a housing 1 pivotally mounted at 20, 21 on an axle casing 6 from which arms of the housing extend fore and aft respectively to a pair of wheels 2, drive being transmitted from a drive shaft 5 in the axle casing 6 to shafts 18 of the wheels 2 by a solar gear 7 carried by the drive shaft 5 and connected via planet gears 9 to a circumferential gear 10 which meshes with respective gear trains 15, 17 in each arm of the housing, the last gear 17 being secured to a respective shaft 18. Each gear train contains an odd number (one as shown) of the gears 15. As shown, gear 15 meshes directly with an external toothed rim 14a of the circumferential gear 10 but in a modification, Figs. 3 and 4 (not shown), a further gear (14) is pivotally mounted on the end of the axle casing 6 co-axially with the solar gear 7 and meshes with both gears 10 and 15. For this purpose, gear 10 has two internally toothed portions for engaging the planet gears 9 and gear (14) respectively, and the further gear (14) has two externally toothed portions for engaging the circumferential gear and gear 15 respectively. A brake for the bogie may be provided in the axle casing 6 to engage the shaft 5.
Patent GB-1385206-A (GB)
Title: Frequency responsive apparatus
IPC: G01R23/10
Filed: 1972-05-08
Abstract: 1385206 Velocity measurement BBC BROWN BOVERI & CO Ltd 8 May 1972 [10 May 1971] 21420/72 Heading H4D Although relating generally to apparatus for responding to the frequency of a cyclic signal, the Specification particularly relates to apparatus for determining the average frequency of a Doppler signal which may occur in a series of discontinuous bursts. One burst is shown at U E , Fig. 3, and is processed in device 18, Fig. 1, in the manner described in Specification 1,349,366 to give a time marker signal U16 comprising a pulse for each negative going cross-over of a cycle having an amplitude greater than a predetermined threshold and a signal U17 which has the duration T17 of the total of said large amplitude cycles. Each signal U17 enables gate 21 to gate through a number T17.f TAKT  of timing pulses from generators 22 (frequency f TAKT ). When enabled by a "1" start signal at input E<SP>1</SP> 23  and a "1" signal at control input E 23 , gate 23 passes the bursts of timing pulses to a counter 24 which produces a "1" signal at A24 when the total count reaches a value N, i.e. for #T17.f TAKT =N thus defines the total integrated period which is considered will give a true average frequency. The "1" signal at A24 is converted to a "0", "control signal removed" signal U25 by inverter 25 such  that gate 23 is inhibited and the count stops. Counter 20 meantime has been counting the total number C of time marker pulses i.e. f E .#T17 where f E  is the desired average frequency. As the count of 20 stops simultaneously with that of 24 (use of control signal U25) then,  The values of N and f TAKT  can be adjusted so that f E  is directly readable as the equivalent velocity.
Patent GB-653978-A (GB)
Title: Improvements in or relating to hay-rakes, hay-sweeps, pike-lifters and the like
IPC: A01D87/08
Filed: 1948-08-14
Abstract: 653,978. Load-handling apparatus. TAYLOR, J. H. Aug. 14, 1948, No. 21492. [Class 78 (iii)] [Also in Group I] The individual tines of a hay sweep or the like are mounted in the tool-bar to have angular movement therein so that each tine follows the contour of the ground. At the end of the draw-bar 1 of a tractor forward of the rear axle 2 is mounted at each side a bracket 3 on which is pivoted a toolbar supporting arm 4 carrying a channel-section tool-bar 5. Links 6, 7 connect the arms 4 to power-lift arms 8 of known form. Through holes in the flanges of the tool-bar pass tines 9 of smaller diameter than the holes. The tines are tubes containing vertical strengthening webs. Bolts 10 welded to the supported ends of the tines project through the tool-bar and carry springs 11 compressed by nuts 12. Instead of using the bolts 10, the tines may be carried through front and rear flanges of the tool-bar, springs 14 being arranged between the flanges with transverse pins 13 anchoring the tines in position. Two other methods of mounting the tines are described. Extensions of the tool-bar may be provided to give a wider sweep. Shorter tines may be used for grass-sweeping. In the construction shown in Fig. 5, the tool-bar is a tube 19 supported by a frame 20. Tubes 21 pass transversely through the tool-bar and are rigidly held therein. The tines 9 loosely fit in these tubes and are anchored by transverse pins 22, Fig. 6, which allow up-and-down movement of the tines.. The frame 20 is pivotally mounted on a frame 24 pivoted on a bracket 25 corresponding to bracket 3 of Fig. 1. On the upper frame member 24a of the frame 24 is a bracket 26 on which pivots a lever 27 adapted to co-operate with a locking arm 28 on the frame 20. Extension frames 29, 30 are bolted to the frame 20 and carry short tool-bar lengths 31, 32 each supporting additional tines. In use the lever 27 is raised and allows the locking arm 28 to rise under the pull of the frame 20 which then swings outwards so that the tines contact the ground. To raise the tines the lifting gear is operated to lower the frame 24 until its upper end abuts the upper end of the frame 20, whereupon the locking arm slides over the frame 24 where it is held by the lever 27. The lifting gear is then operated to raise the two frames into the inoperative position (Fig. 5). Alternative means for attaching the tool-bar to the tractor are described. The tool-bar may also be mounted at the front of the tractor.
Patent GB-732322-A (GB)
Title: Jogging machine
Inventor: DANEKE DIETRICH
IPC: B65H31/40
Filed: 1953-08-04
Abstract: 732,322. Sheet delivery apparatus. BRACKETT, F. M. Aug. 4, 1953, No. 21512/53. Class 100 (1). A jogging machine for straightening sheets of paper or the like in a stack includes a jogging table mounted on a base for up and down movement relative thereto, a connection between the table and base whereby upward movement of the table effects levelling thereof, and a motor for vibrating the jogging table. The machine comprises a base 2 on which are mounted sleeve members having bores 8 in which are slidably mounted posts 9. The posts 9 have screw-threaded bars 16 co-operating with screws 17 so that by revolving the screws 17 by means of a reversible motor 26 the posts 9 may be raised or lowered. The upper ends of the posts 9 are connected by trunnions 29 to a sub-table 30 of thick cast metal connected to the jogging table by means of leaf-springs 52, the orientation of the table and sub-table 30 being such that a bisector of the corner 44 of the table extends at right angles to the tilting axis defined by the trunnion 29. Vibration of the table is effected by a motor 61 which operates on eccentric strap 64. Spaced rocker arms 65 mounted on stub shaft 66 are provided with weighted end portions 67. Leaf-springs 71 connect the eccentric with the arms 65 and leafsprings 74 connect the arms 65 with bar members 38, 39 which form part of the jogging table. Mounted on a bracket 88 of the sub-frame 30 is a rod 87 carrying spaced arms 89 adapted to slide on a rod 91 fixed to the base 2. Extending from one of the posts 9 is an arm 97 including a switch finger 96 adapted to co-operate with the laterally-extending fingers 98, 99 on collars 93, 94 which limit the movement of the arms 89. When the table is in its lowermost tilted position and the switch 96 is operated the initial upward movement of the posts 9 causes the table to assume a less degree of tilt owing to the action of springs 85, 86. Further upward movement of the posts 9 causes upward movement of the table until the upper arm 89 contacts the collar 93. The posts then continue the upward movement so that the table is levelled out against the action of the springs 85, 86, a level position being assumed by the table at the instant the finger 98 operates the switch 96 to stop the motor. Reversal of the motor 26 causes a corresponding lowering and tilting of the table. Handles 111 are provided whereby the sides 48 of the table may be swung downwardly for sliding sheets on the table when it is in its level position.
Patent GB-1281657-A (GB)
Title: Fluid-pressure-responsive logical elements
IPC: F15C3/04
Filed: 1971-04-19
Abstract: 1281657 Valves PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [19 Feb 1970] 21901/71 Heading F2V [Also in Division G4] A bi-stable fluidic element includes a fluid flow path from one inlet to an outlet via a first valve, and a second flow path from a second inlet to the same outlet via a second valve. The first valve stops flow in the first flow path when fluid flows from the first inlet to the outlet. The second valve stops flow in the second flow path when fluid flows towards the second inlet. The element comprises first and second inlets 39, 41 and an outlet 43, Fig. 1. Diaphragms 9, 11 having apertures 13, 15 lie in the positions shown when both inlets are at high pressure (1) or at low pressure (0). If the pressure at input 41 changes from 1 to 0, diaphragm 11 flexes downwards to seat against stop 33: the pressure at the outlet remains at 1, Fig. 2 (not shown). If the pressure at input 39 is now briefly reduced to 0, diaphragm 11 will unseat from stop 15, and on reappearance of pressure 1 at input 39 diaphragm 9 will seat against stop 31: pressure at outlet 43 becomes 0, Fig. 3 (not shown). If the pressure at inlet 41 returns to 1 the state shown in Fig. 1 will be resumed.  The apertures 13, 15 may be to one side of the stops 31, 33, apertures 35, 37, Fig. 1, then being replaced by apertures (35, 37) through the stops (31, 33), Fig. 4 (not shown). The element may use spring-loaded balls or pistons instead of diaphragms.
Patent GB-896256-A (GB)
Title: Improvements in or relating to a position indicator
IPC: B66B1/50
Filed: 1958-07-08
Abstract: 896,256. Electric selective signalling systems. SCHWEIZERISCHE WAGONS-UND AUFZUGEFABRIK A.G. July 8, 1958 [July 22, 1957], No. 21920/58. Class 40 (1). [Also in Group XXX] A device for indicating the position of a moved object with one degree of freedom. e.g. a. lift car (see Group XXX), comprises a magnetic storage element having two stable states of magnetization determined by magnetic actuating elements moved relatively to the storage element so that, according to the direction  of passage of an actuating element, one of said states is produced in the storage element and this state is detected and converted to an electrical signal. As applied to a lift system, on passing a magnet 9 in the shaft a magnetic element 1, mounted on the car, has its polarity changed thereby reinforcing or opposing the magnetic flux in an element 5, and so varying the inductance of a coil 8 which is connected in a control circuit where the variation of current flowing through coil 8 indicates the position of the car. In a modification, Fig. 2 (not shown), the element 5 is replaced by a semi-conductor which registers a change in potential when the magnetic field between magnets 1 and 4 changes. In a further modification, Fig. 5 (not shown), the magnetic element is in the form of a loop, the element 5 is in the form of a toroid and to render the element 5.more sensitive to the direction of the magnetic flux between the ends of the element 1, an additional magnetic element is provided.
Patent GB-149354-A (GB)
Title: Improvements in or relating to azo dyes and their process of manufacture
IPC: C09B29/00
Filed: 1920-07-22
Abstract: Azo dyes are obtained by coupling diazotized aminoretene or aminoretenequinone or aminoretene sulphonic acid with azo dye components.  According to examples:-retene is nitrated by means of fuming nitric acid, the nitroretene is dissolved in alcoholic caustic soda and reduced with hydrosulphite, and the aminoretene is diazotized and coupled with R- salt, G- salt, Andersen's salt (sodium salt of 1-oxynaphthalene-3 : 8-disulphonic acid), H- acid, or a -naphthol; retenequinone is nitrated with fuming nitric acid, the nitroretenequinone is reduced as described above, the amino compound is diazotized and coupled with R- salt, G- salt, Andersen's salt, H- acid, b -naphthol, or a -naphthylamine; retene is sulphonated by fuming sulphuric acid, the product nitrated by concentrated nitric acid, reduced by means of iron powder, and diazotized and coupled with R- salt, G- salt, Andersen's salt, or H- acid.
Patent GB-949187-A (GB)
Title: Procedure for secondary recrystallization
IPC: C21D8/12
Filed: 1960-06-23
Abstract: In a process for the production of iron-silicon sheet in which the crystal orientation is such that a majority of the cube faces are within 5 degrees of parallelism with the surfaces of the sheet, a part at least of the final cold rolling is carried out using rolls giving a profilometer reading not greater than 10 micro inches, and the sheet is then given a secondary recrystallization treatment, e.g. in the range 1900-2300  DEG F.. The alloy may contain 2.5-4% silicon and less than 0.005% carbon, and the secondary recrystallization may be carried out in an atmosphere of non-oxidizing gas containing 20-250 p.p.m. of a polar compound selected from the oxides of carbon and sulphur and hydrogen sulphide.  The final crystal structure may also be such that at least 70% of the cube edges are aligned within 20 degrees of the rolling direction.  Specification 942,399 is referred to.
Patent GB-489207-A (GB)
Title: Electric furnace for the melting of glass
IPC: C03B5/03
Filed: 1937-08-11
Abstract: 489,207. Electric furnaces. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, ET CIREY. Aug. 11, 1937, No. 22090. Convention date, Aug. 14, 1936. [Class 39 (iii)] A tank furnace wherein the glass flows longitudinally from one end B to the other is provided with transverse electrodes C arranged below the surface of the glass and extending across substantially the whole width of the glass flow. The electrodes may be of circular or rectangular cross-section. The furnace walls may have internal bosses G around the electrodes. Specification 262,535, [Class 39 (iii)], is referred to.
Patent GB-1311999-A (GB)
Title: Apparatus for forming holograms employing beam equalisation for  object movement
IPC: G01B9/021
Filed: 1970-05-07
Abstract: 1311999 Photo-electric measurement of displacement GCO INc 7 May 1970 [28 Aug 1969] 22116/70 Heading G1A [Also in Division G2] Apparatus for forming a hologram of an object 10 comprises a laser 12 and a beam splitter 14 producing a reference beam which is reflected by mirrors 24 and 26 and passed through a spatial filter 28, comprising a pinhole and lens assembly, to fall in a photographic plate 22, and an object beam reflected by mirror 18 to pass through spatial filter 20 and, after reflection from the object 10, fall on the plate 22. Part of the reference beam and a part of the object beam which is reflected by a mirror 52 mounted on the object, after respectively reflection from or passage through semi-reflector 40 are detected by photo-detector 32, and by examining these beams using half-silvered mirror cube 54 and adjusting the reflector 40 by means of screws 46 and 48 the beams can be rendered coincident. Any movement or vibration of the object 10, which would cause the hologram to be blurred, will cause the phase difference of the two beams falling on the detector 32 to vary, and the output from the detector controls, via circuitry 34, 36 and 38a the position of the mirror 26 by means of Piezo-electric driver 30, thereby altering the patch length of the reference beam so as to keep constant the path length difference between the object and reference beams.
Patent GB-1507108-A (GB)
Title: Centrifugal liquid pump
IPC: F04D29/42
Filed: 1976-05-27
Abstract: 1507108 Centrifugal liquid pumps BORGWARNER CORP 27 May 1976 [15 Dec 1975] 22123/76 Heading F1C A centrifugal pump for liquids comprises an outer case in the form of a one piece annular barrel 11, Fig. 1, with end cover plates 14, 16, Fig. 2, the impeller being rotatable within a bore 39 in a volute 37 comprising spiral partitions 128, 129 defining respective volute passages 44, 43, passage 44 guiding liquid directly into discharge chamber 127 which connects with discharge pipe 29, and passage 43 directing liquid into discharge chamber 127 via bifurcated passage 137 divided by splitter (148), Fig. 4 (not shown), into two passages (138), (139), Fig. 7 (not shown), which lead into chamber 127. The impeller 115, which is driven via shaft 72 is of the double suction type having inlet eyes 117 and outlet eyes 118, inlet pipe 26 communicating with eyes 117 via passages 46, 47 in volute 37 and passages 123, 124 in plugs 53, 66 welded respectively to cover-plates 14, 16. Shaft 72 is sealed by throttle bushings 84, 86, liquid (which may be the same as that being pumped) delivered via conduits 103 and annular chamber 101 (indicated on the right of Fig. 2 only) at a pressure higher than that within the impeller chamber, being impelled via ports 102 and grooves 92 inwardly towards the impeller chamber, and outwardly between shaft and throttle bushing into annular chamber 104 from which most of it is discharged via conduit 107, a portion flowing outwardly into a bearing bracket 76 and draining via port 112.
Patent GB-625553-A (GB)
Title: Positioning mechanism for radio tuning and the like
IPC: H03J5/06
Filed: 1947-08-08
Abstract: 625,553. Intermittent toothed gearing. BENDIX AVIATION CORPORATION. Aug. 8, 1947, No. 22134. Convention date, May 29, 1945. [Class 80 (i)] [Also in Group XL (c)] In a mechanism for adjusting a member to any one of a number of predetermined positions, the stop means have a plurality of adjustable portions which are successively engaged by a follower attached to a compensating element mounted on the driving member for limited movement with respect thereto. A different portion of the stop means independently dertermines the position of the driving member and means jointly responsive to the position of the drivng member and that of the compensating element adjust the driven member to any of the predetermined positions. As shown in Figs. 1 and 4 the condensers 15 and 16 are simultaneously adjusted to predetermined positions by identical mechanisms 30 and 31 respectively, driven through a common shaft 21, but the exact setting of each condenser is adjustable independently. A cam 34 provided with a pin 35 is driven by bevel gear 29 and co-operates with a rocker 41, urged counter-clockwise by a spring and carrying a pin 40, to lock the slotted disc 37 and move it on to the next position alternately. The disc has a hollow shaft and is rotatably supported in a bearing in the housing 32 A rack member 51 urged clockwise by a spring 57 is pivotally supported on the disc 37 at a point displaced from the centre, and drives the condenser through a pinion 52. A shoulder 60 on the rack is forced against an adjusting screw 53 and by this means the shaft 50 is adjustable at each position. When the disc 37 moves to the next position, the rack is snapped clockwise and comes against the end of the next adjusting screw. Alternative arrangements of the mechanisms 30, 31 are given in Figs. 5 to 10 (not shown). In Figs. 5 and 9 adjustment is by means of a flexible cam supported by radially adjustable screws, and the arrangement shown in Fig. 9 has the additional advantage that it can be rotated in either direction.