baber/WOPTO huggingface dataset:
Patent GB-935346-A (GB)
Title: Improvements in or relating to metal-extrusion presses
IPC: B21C23/21
Filed: 1960-10-04
Abstract: 935,346. Extruding. LOEWY ENGINEERING CO. Ltd. Jan. 3, 1962 [Oct. 4, 1960], No. 33957/60. Class 83 (4). A metal extrusion press has a plurality of dies 32 carried by a rotatable and axiallymovable turret 17, and a bolster 35 carried by a transverse slide 18. The turret 17 which is rotatable by gearing 19 about one of the press tie-rods 13 and is movable axially by a pair of hydraulic motors 28, houses a pair of opposite dies 32 with backing plates 33, which can be used alternately. Slide 18 is actuated by an hydraulic motor 26 and carries the bolster 35 and a large apertured boss to permit the passage of a rejected billet. Alternatively, the slide may carry two bolsters. After extrusion of a product such as a tube A, Figs. 6, 7 (not shown), the billet container 16 is retracted and the product is severed by transverse movement of the bolster 35, Fig. 8 (not shown), which has a shearing ring 38 co-operating with a similar ring 37 on the backing member 33. Alternatively, a saw 42 may be introduced either in front of or behind the die, Figs. 6, 7 (not shown).
Patent GB-1010820-A (GB)
Title: Transistor switching circuit
IPC: H03K19/084
Filed: 1962-09-05
Abstract: 1,010,820. Transistor switching circuits. SPERRY RAND CORPORATION. Sept. 5, 1962 [Sept. 19, 1961], No. 33970/62. Heading H3T. The bias current which removes minority carries from the base region of a transistor during switching off is transferred to the output circuit when the transistor is fully off. When a - 4 v. signal is applied to one of the logic input terminals 21, 23 of the two-stage circuit shown transistor 13 is conducting. Diodes D1 (or D2) and D3 are conducting with the result that point 37 is at about - 3 v. and as the collector is at 0 v. diode D4 is cut off. When the input terminals are returned to 0 v. the bias current flowing through R 3  and D 3  remove the stored carriers from the base. The potential at point 27 moves positively while the collector potential moves to a value of - 3 v. at which it is caught by a diode D6. Diode D4 is now conductive and D3 non-conductive so that the bias current from R3 is diverted to the output circuit and the input circuit is not loaded by the bias circuit. An inductor L delays the transfer of current until the succeeding stage 25 is on and R1 provides a small reverse bias to maintain the transistor non-conductive in the off state. Diode D5 clamps the input circuit if the input terminals are open-circuited.
Patent GB-1106393-A (GB)
Title: Melting furnace
IPC: C22B9/22
Filed: 1966-07-28
Abstract: 1,106,393. Electric arc furnaces employing plasma torches. CONTINENTAL TITANIUM METALS CORPORATION G.m.b.H. 28 July, 1966 [2 Aug., 1965], No. 34022/66. Heading H5H. [Also in Division F4] A furnace for melting metals has a sealed shell 18, a plasma jet torch 100 (see also Fig. 6) with its barrel 102 inside the shell and a handle arrangement 112 for directing plasma effluent from the torch on to metal to be melted in a selected mould cavity 58 in a hearth 48, and a bleed pipe 140 for venting excess inert gas from the furnace interior via an oil bubbler 142 which prevents any back-flow of outside atmosphere gases into the furnace. Particular cavities (58a), (58b), (58c), (Fig. 2, not shown), are selected by rotation of hearth 48 by operation of a pedal switch 42, operation of a pedal switch 134 turns on power between the electrode in torch 100 and the metal charge in the selected cavity 58, and torch 100 is aligned by handle 112 and pivotal movement of the torch, through ball mounting 104, or vertical movement thereof, through a flexible seal bushing 106 of plastics fluorinated hydrocarbon. The hearth is watercooled, and the furnace has a viewing window 80 (see also Fig. 3), a band-hole tube 82 (see also Figs. 4 and 5), and a loading port 60 and coverplate 62.
Patent GB-1012388-A (GB)
Title: Extrusion apparatus
IPC: B21C23/08
Filed: 1963-08-28
Abstract: 1,012,388. Extruding; billet piercing. BALDWIN - LIMA - HAMILTON CORPORATION. Aug. 28, 1963 [Aug. 28, 1962], No. 34130/63. Headings B3H and B3P. An extrusion die assembly comprises a die body 34 housing a removable die insert 64 made of a ceramic or a cermet, mounted so that the radial forces thereon are equalized towards the end of the extrusion stroke. The die body 34 which may be of metal or a ceramic or a cermet, is mounted within a liner 28 of a billet container 12 and has a well 42 to receive the insert 46 which may be of aluminium oxide fired at 2750 F. The mounting of the insert provides during extrusion a low pressure zone 50 to which is supplied under pressure through check valves 55, 57 and ducts 52, 54 a flowable medium such as grease, flaked graphite, soapstone or mica which acts on the outside of the insert and also facilitates the flow of billet metal 60. This may be steel heated to 2200 F. and is extruded by a dummy block 16 and stem 14 connected to a piston working in an hydraulic cylinder 22, Fig. 1 (not shown). A piercing mandrel 18 may be attached to the stem or actuated separately. The mandrel is shaped to provide a low pressure zone 64 which may be supplied with lubricant through passages 66, 68. Lubricant may also be supplied to a further low pressure zone at the junction of the die body and liner, Fig. 3 (not shown). The fluid in well 42 surrounding the insert 46 is subjected to the pressure in zone 50 which increases towards the end of extrusion causing an increased radial inward pressure on the insert to equalize the outward radial pressure produced by the extruded metal. After extrusion, pressure air is passed through ducts 52, 54. In another embodiment, Figs. 4, 5 (not shown), the insert 46 is mounted for limited axial movement to act as a valve member for interrupting the flow of lubricant into the zone 50 if pressure builds up due to generation of gases produced by contact of lubricant with the extrusion metal.
Patent GB-429930-A (GB)
Title: Improvements relating to pneumatically actuated control mechanism
IPC: F02D9/00
Filed: 1933-12-05
Abstract: 429,930. Pneumatic control mechanism. BROWN, D. F., and WESTING- HOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Dec. 5, 1933, No. 34146. [Class 8 (ii)] [See also Group XXIX] A pneumatically-operated control mechanism has air admitted at adjustable pressure through the port 17 from a master controller, to raise the piston 4 against the action of the spring 15. This movement of the piston is communicated to the clip 11 connected to the throttle or other member to be controlled. The initial compression of the spring 15 is adjusted by the screw plug 20 and the stroke of the piston is limited by the adjustable screw stop 18.
Patent GB-176497-A (GB)
Title: Improvements in nests for poultry and game birds
IPC: A01K31/16
Filed: 1920-12-07
Abstract: 176,497. Peters, W. C. Dec. 7, 1920. Poultry coops.-A coop for enabling a hen to incubate more than the usual number of eggs comprises a base a, forming a nest, and a, cover c having restricted ventilation to conserve the heat of the hen. The nest a is of wood, papier mÔchÚ, metal, &c. surrounded by a flange b within which the eggs are laid upon earth or other non-conducting substance. The cover c is removably secured to the base and has an aperture e covered with gauze and shielded by a hood f.
Patent GB-798674-A (GB)
Title: Improvements in or relating to hair-waving preparations and processes
Inventor: DEADMAN LIONEL LESLIE FREDERIC
IPC: A61K8/46
Filed: 1955-12-02
Abstract: In a "cold" permanent waving process, hair is treated with an aqueous solution of lithium thioglycollate at a pH of 7 to 10. The pH may be adjusted with lithium, sodium or potassium hydroxide and the composition may also contain a non-ionic wetting agent, perfume or thickener or a dispersion or emulsion of polyvinyl acetate or lanolin.  The hair may be after-treated with an oxidizing-agent.  The analogous process of straightening curly hair is also described. Specification 778,308 is referred to.
Patent GB-176158-A (GB)
Title: Improvements relating to spring wheels applicable to vehicles, and to driving pulleys and the like
IPC: B60B9/06
Filed: 1920-12-08
Abstract: 176,158. Lewis, J. J. Dec. 8, 1920. Spring wheels. - A vehicle or other wheel has telescopic spring spokes arranged approximately tangentially to a hub member. Parts c, e, Fig. 1, pivoted to the hub a and the rim b respectively, are arranged to slide one within the other and are maintained in their normal position by opposed compression springs g, h. In a modification, each spoke has two sets of opposed springs. In a further modification, Fig. 2, members r, o, pivoted to the rim and hub respectively slide through holes in a plate m, and compression springs g, h are provided between the plate m and shoulders on the members r, o. The springs may be enclosed in telescopic casings.
Patent GB-429623-A (GB)
Title: Improvements in gas-producer machines or units for supplying heating gas to metallurgical and like furnaces
IPC: F23K3/00
Filed: 1933-12-11
Abstract: 429,623. Gas -producer furnaces. FALLON, J., British Mills, Cornwall Road, Smethwick, near Birmingham. Dec. 11, 1933, No. 34770. [Class 51 (i)] In a gas-producer furnace of the kind described in Specification 211,592, [Class 51 (i)], the fuel feed screw 3, Figs. 1 and 3, grate 26 and ash clearing device 19 are driven by a motor 8 and means are provided for simultaneously controlling the rate of fuel feed, ash discharge and air supply by the blower 37, the ash discharge and air supply being also controllable independently. The motor 8 drives through a link 6 the pawl 5 of the ratchet wheel 4 mounted on the shaft of the screw feeder 3, the rate of feed being varied by a pointer 9 connected through segments 46, 47 to the adjustable mask 48 of the ratchet. The ratchet wheel 4 is interconnected by a link 13 with the pawl 14 of a ratchet wheel 49 which drives through worm and link gearing 17, 21, 22, 23, the ash-discharge device 19. An adjustable mask 50 provided with a pointer 24 may control independently the rate of ash-discharge. Mounted on the same spindle as the pointer 9 of the fuel control is a pointer 33 adapted to be clamped to the pointer 9 so as to be moved therewith but also capable of independent adjustment to vary through gearing and links the position of the valve 35 in the air discharge conduit leading from the blower. The grate 26 is reciprocated about its upper part to and from the rear wall of the furnace by links 32 driven by the motor 8. The furnace is mounted on wheels 45 to render it portable and is provided with a water jacket to generate steam for supply to the furnace.
Patent GB-204251-A (GB)
Title: Improvements in a looper thread controlling mechanism
IPC: D05B63/00
Filed: 1922-12-21
Abstract: 204,251. Thompson, W. P., (Union Special Machine Co.). Dec. 21, 1922. Chain stitching. - Looper thread controlling mechanism for a machine having a looper oscillating in a single horizontal plane comprises an arm 21<1> oscillating between fixed thread-guides 14, 16. The guides are supported by a bracket adjustable on the standard of the machine. The arm 21<1> is carried by a yoke 22 oscillated by an eccentric 35 on the vertical shaft 11 by which the looper 3 is actuated through mechanism including parts 4, 10. A lubricating pad 39 of fibrous material is held in a plate 36 closing the open end of the yoke. The end of the arm 21<1> is reversely bent so as to engage the thread between and outside the guides as shown in Fig. 8. The arm 21<1> is adjustably mounted on the yoke and the eccentric 35 is adjustably mounted on its shaft.
Patent GB-390466-A (GB)
Title: Improvements in and relating to automatic synchronising devices
IPC: H02J3/42
Filed: 1932-12-08
Abstract: 390,466. Synchronous movements. TCHEN, N. K., 79, Rue Emile Banning, Brussels. Dec. 8, 1932, No. 34839. Convention date, Dec. 10, 1931. [Class 40(iii).] A circuit 2, individual to each drum C, C1 to be synchronized, is closed regularly in each revolution and starts a correcting-action unless a circuit 1, common to the drums, is simultaneously closed through the drums being in synchronism. By relaxing spring blades FF, F1 F1, the drums are so adjusted angularly that, at synchronism, projections E, E1 simultaneously strike contact pieces Q .. Q1<SP>1> and close contacts B .. D11. Spring blades S, S1 close contacts B<1>.. D11 in the circuit 1 slightly in advance of the others and excite electromagnets 6, 7 to remove their armatures A, A1 from the path of the projections E and allow the drums to revolve. Contacts B .. D1 close the local correcting-circuit 2 unless this is opened by switches 13, 13<1> operated by electromagnets 11, 11<1> in the circuit 1. If one drum is in advance, its correcting-circuit is closed until the common circuit is closed. During this period an electromagnet 4, 5 and a motor M, M1are excited. The former declutches the drum, and the latter acts on a centrifugal regulator to slacken the speed, Figs. 4 and 5 (not shown). Copying-telegraph signals are transmitted over a circuit 3. The circuits 1, 3 may be combined by interrupting the telegraphy channel during the synchronizing-period by an insulating band on the surface of the drum, Fig. 6 (not shown).
Patent GB-777070-A (GB)
Title: Manufacture of substituted 2-aminomethylindanols
Filed: 1954-12-01
Abstract: The invention comprises indan derivatives of the formula: <FORM:0777070/IV(b)/1> wherein R1 is alkyl or phenyl, R2 is hydrogen or alkyl, R3 and R4 are hydrogen or alkyl or NR3R4 is a heterocyclic radical, for example pyrrolidyl, piperidyl or morpholinyl, and R5 and R6 are hydrogen atoms or alkyl or alkoxy groups, and the preparation of these compounds by reaction of the corresponding 3-keto-compound with an agent capable of reducing keto groups, for example hydrogen in the presence of a noble metal or Raney nickel catalyst.  In examples the corresponding 3-keto compounds are reduced to give 1-phenyl-2-dimethylaminomethyl - indanol - (3); 1 - methyl - 2 - piperidinomethyl - indanol - (3); 1 - phenyl - 2-piperidinomethylindanol - (3); 1 - phenyl - 2-dimethylaminomethyl - 5 - methyl - indanol-(3) and 1 : 1-dimethyl-2-dimethylaminomethylindanol-(3).  Starting materials. Aminomethyl-indanones corresponding to the indanols prepared in the examples are made by the reaction of an indanone with formaldehyde and the appropriate amine, e.g. dimethylamine or piperidine.
Patent GB-895176-A (GB)
Title: Improvements in or relating to visual tuning indication means for television receivers
IPC: H04N5/50
Filed: 1958-10-31
Abstract: 895,176. Tuning indicators; pulse circuits. BLAUPUNKT-WERKE G.m.b.H. Oct. 31, 1958 [Nov. 2, 1957], No. 34935/58. Classes 40(5) and 40(6). A television receiver in which the picture tube is used to provide also visual tuning indication, is characterized in that there is connected to the grid of an amplifier valve 9 connected to the picture tube a series arrangement of a diode 11 and a control potential source 12, and that in parallel with this arrangement there is fed the sum of two signals derived from the line timebase, the first being derived from across a booster diode 3, Fig. 4, and the other from a tuned circuit 6. 7 Fig. 3. The waveform of Fig. 4 results from the charging of capacitor 4. Valve 1, Fig. 1, is the line timebase O/P valve and the two derived waveforms, Figs. 3, 4 are combined to produce a waveform as shown in Fig. 5 which is applied to the control grid of valve 9. This control grid is clamped by diode 11 to negative control potential 12 derived from the I.F. amplifier, the operating conditions of the valve being such when the receiver is correctly tuned, this negative potential holds valve 9 cut off. When the receiver is incorrectly tuned, the bias on valve 9 is reduced, and a negative going puise, Fig. 6 (not shown) is produced at the anode and is fed to a control electrode of the picture tube to produce a black bar, the width of which depends on the degree of mis-tuning. When tuning is completed, valve 9 can be used as an image sharpening amplifier by switching a proportion of the vidio signal to the grid.
Patent GB-282809-A (GB)
Title: Improvements in or relating to electric motor control mechanism for furnaces
IPC: F23N1/02
Filed: 1927-12-29
Abstract: 282,809. British Thomson-Houston Co., Ltd., (Assignees of McLain, R. H.). Dec. 29, 1926, [Convention date]. Regulating combustion.-In a furnace in which the forced and exhaust draught fans and the fuel supplying means are driven bv electric motors, one of the motors drives an electric generator which supplies current to the other motors so that by controlling manually or automatically the motor driving the generator, the other motors are simultaneously controlled. As shown, the motor 7 driving the exhaust draught fan 6 drives the generator 8 which supplies current to the motors 9, 10 of the forced draught fan 5 and fuel supplying means 4 respectively. The motor 7 may be controlled manually at 13 or by automatic means at. 12 subjected to varying pressure in the steam drum 3 of the boiler 2. The motors 9 and 10 may be controlled manually at 18.
Patent GB-428028-A (GB)
Title: Improvements in recording apparatus for use, for example, with fatigue testing apparatus
IPC: G01N3/06
Filed: 1933-12-22
Abstract: 428,028. Recording-apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, JOLLEY, L. B. W., and THOMPSON, J. S., c/o General Electric Co., Wembley, Middlesex. Dec. 22, 1933, No. 35234/34. Divided out of 427,989. [Class 106 (iv)] Comprises a non-linear, for example, a logarithmic drive for a recording-apparatus. In the form shown in the drawings the operated member is a spring rotated drum 21 carrying the chart. The movement of the drum is controlled by an escapement wheel 22 and a reciprocating pallet 23, each movement up or down of which allows the drum to rotate one step. The pallet is reciprocated by a bar 24 moved transversely to its length by one of a series of bell cranks 26 rollers on the ends of which engage pins 25 on the bar. Rollers on the other ends of the bell cranks engage a series of cams 29 each driven from the next preceding it at one-third of its speed. Each cam has five lifts 30, each of which raises and lowers the bar 24. The final lift is made higher and rocks the lever 26 out of engagement with its pin, the next cam taking over the drive.
Patent GB-832174-A (GB)
Title: Check-drum for combine-harvesters
IPC: A01F12/00
Filed: 1958-11-04
Abstract: 832,174. Combine-harvesters. CLAAS, A., and CLAAS, F., [trading as CLAAS GEB.]. Nov. 4, 1958 [Nov. 6, 1957], No. 35307/58. Class 6(3). Relates to a check-drum 4 for reducing seedscatter in passing from the threshing cylinder 2 to the shakers 6 of a combine-harvester. According to the invention the drum has self-erecting pockets which are erected only on the side of the drum facing the threshing cylinder. The pockets are formed by flaps 5 secured to shafts 7 journalled on the drum and rotatable by cranks 9 terminating in rollers 11 which run in a trackway 12 in a hollow member which is secured to the wall of the harvester-body.
Patent GB-1323889-A (GB)
Title: Combination tape cartridge and tape recording and or reproducing  machine
IPC: G11B15/675
Filed: 1970-07-21
Abstract: 1323889 Cartridge players MINNESOTA MINING & MFG CO 21 July 1970 [22 July 1969] 35365/70 Heading G5R A tape cartridge is accurately aligned with the head 58 and capstan 57 of a cartridge player by a locking member 63 which moves normally to the cartridge face 24 and draws it against spaced abutments 60, 61 in the player. The cartridge has coaxial reels between which the tape is guided twice across the face 24. The cartridge is inserted until the lock 63 engages a pin 40 in the cartridge. Lever 80 is moved to the solid line position and acts through rod 77, springs 82, 83 and lever 72 to draw the cartridge inwards so that twin rods 60, 61 engage four notches 42, 44 in the face 24. The cartridge is said to be released by moving the lever 80 to the dotted position to free the pin 40 of the lock 63.
Patent GB-1381740-A (GB)
Title: Compressors
IPC: F04B49/08
Filed: 1972-07-28
Abstract: 1381740 Regulating drive to compressors H BAUER 28 July 1972 [29 Dec 1971] 35366/72 Heading F1N [Also in Division F2] A compressor installation in which an electric  motor 2 drives the compressor 1 via a V-belt drive system 15, 16, 21, comprises means for regulating tension in the V-belt in dependance on the output pressure of the compressor. A cylinder 7 is pivoted at 23 to an arm 22 on motor 2, and a piston 17, reciprocal in cylinder 7, has a rod 18 pivotally connected at 19 to a plate 3 rotatably mounted on a fixed shaft 4, the compressor 1 being mounted on plate 3. A spring 8 is pre-compressed between an adjustable nut 9, threaded on to an extension of cylinder 7, and a part 20 rigid with plate 3. Initially, the spring 8 is pre-stressed to provide a tension in belts 21 which is sufficient for the starting-up of the compressor 1 by motor 3. The output from compressor 1 leads via pipe 24 to an oil separation tank 10 and then to consumers via pipe 25. A conduit 13 joins cylinder 7 to tank 10 via a pressure-reducing valve 11. Thus, during operation, when a higher tension in belts 21 is required compared with that for starting, pressure in cylinder 7 from compressor 1 leads to a further urging apart of plate 3 and arm 22, and thus of pulley 15, 16 which leads to an increase in V-belt tension.  Reference has been directed by the Comptroller to Specification 1004580.
Patent GB-747977-A (GB)
Title: Improvements in or relating to mass spectrometers
IPC: H01J49/02
Filed: 1953-12-23
Abstract: 747,977. Heavy-ion-beam tubes; Geiger counters. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 23, 1953 [Dec. 30, 1952], No. 35754/53. Class 39 (1). [Also in Group XL (b)] In a mass spectrometer the ions strike a fluorescent screen and generate light pulses which are converted into current pulses by a photo - sensitive counter tube which may be inside or outside the envelope of the spectrometer; the window 8 of the counter tube 5 forms part of the envelope wall. The fluorescent screen may consist of a single fluorescent crystal or may comprise fluorescent material. The window 8 may be coated with fluorescent material to form the screen. In an arrangement with the counter tube entirely outside the envelope of the spectrometer, the fluorescent screen is sealed in the envelope wall.
Patent GB-1034986-A (GB)
Title: Improvements in or relating to vent caps, particularly for radiators
IPC: F01P11/02
Filed: 1964-09-01
Abstract: 1,034,986. Radiator caps. DOLE VALVE CO. Sept. 1, 1964 [Sept. 12, 1963], No. 35771/64. Heading B8T. A radiator cap 10 for closuring a conduit 11 comprises a cover plate 20 having a depending stud 21 and a valve bonnet 22 relatively slidably mounted on the stud. A plunger 32 having a head 33 is disposed through a bore in the stud and has a button 35 at its upper end, a spring 36 biasing the plunger to its normal position shown in Fig. 1. A resilient annulus 46 is secured to the base plate 44 of the bonnet and defines a port 48 and a valve head 52 seats against the annulus to close the port 48 to fluid flow from the portion 12 of the conduit, a leaf spring 57 abutting an extension 53 of this valve head urging the valve head 52 to its port closed position. In this normal position, fluid pressure builds up in the portion 12 but no fluid escapes. To remove the cap 10, first the button 35 is depressed to lower the plunger so that its head 33 engages and depresses the extension 53 so that the valve head 52 opens the port 48 and fluid escapes from the portion 12 to the atmosphere via apertures 51 in the bonnet 22, a chamber 17 and a vent tube 16. The plunger is retained in this lower position by a spring lock 39 which permits downward movement of the plunger but prevents it from returning by an end part 41 engaging rings 43 on the plunger head. When the cap is rotated and completely removed from the conduit 11 a spring 23 biases the bonnet 22 relatively away from the plate 20 and the top surface 63 of the bonnet engages a pair of ears 62 extending upwardly from the end 41 to force the end 41 away from the rings 43 and thus automatically return the plunger and the button to the normal position of Fig. 1.