baber/WOPTO huggingface dataset:
Patent GB-541516-A (GB)
Title: Improvements in electric direct current inverting systems
IPC: H02M7/62
Filed: 1940-05-27
Abstract: 541,516. Converting; electromagnetic interrupters. BRITISH THOMSON-HOUSTON CO., Ltd. May 27, 1940, No. 13911/41. Convention date, May 27, 1939. [Class 38 (ii)] [Also in Group XXXVII] In an inverter system comprising a vibratory commutator switch 16 and transformer 13 for supplying from a low voltage D.C. source 11, 12 such as a train lighting battery high voltage A.C. to discharge lamps 46, 53 of the fluorescent type, at least part of the core of the driving magnet 27 of the switch is made of small cross-section so as to saturate on rise of battery voltage and thus avoid increase in amplitude of vibration of the switch blade. The switch comprises two sets of parallel-connected fixed contacts 20-23 and equal division of current therebetween is ensured by the provision of resistances 42-45 connected as shown. The lamp circuits are designed to take leading and lagging current respectively so as to produce regulation of load current in the manner described in Specification 541,490.
Patent GB-128071-A (GB)
Title: Improvements in or relating to Pulverizers.
Inventor: DAVIS ALFRED EDWIN
IPC: B02C13/00
Filed: 1918-08-28
Abstract: 128,071. Davis, A. E. Aug. 28, 1918. Impact pulverizers. - In pulverizers in which the pulverized material is delivered through a screen by suction, the pulverizing-chamber is provided at one or both ends with a compartment which is divided by a screen, and a disk or shield is provided adjacent to the screen for shielding it from the direct impact of the particles; the disk may form the inner wall of the compartment. In the pulverizer shown in Fig. 1, the pulverizing- chamber a is provided at each end with a compartment e, divided by a screen f which is shielded by a disk k on the beater-shaft c. The disk is provided with vanes which pass close to the screen. The material is drawn through axial openings a<1> in the ends of the chamber and oversize particles are, by the action of the vanes, thrown against ribs i and caused to return to the chamber through ports h. The vanes prevent over-size particles from adhering to the screen. The chamber a and the compartments e are provided with a feed-hopper l and suction pipes e<2> respectively. The shield may be stationary, in which case vanes, mounted on a separate disk or ring, may be provided. In the pulverizer shown in Fig. 3, a disk k, on the beater-shaft, forms the inner wall of a compartment a, containing a screen e and connected to a suction pipe p. The pulverizing-chamber a consists of a short cylinder, and the end parts e', c are secured by bolts m which are pivoted to lugs n on the part c<1> and engage slotted lugs o on the part e. The chamber a may be provided at the side or, as shown, at the end with a feed-hopper.
Patent GB-214112-A (GB)
Title: Improvements relating to the dyeing of cellulose acetate fibres
IPC: D06P1/24
Filed: 1923-05-28
Abstract: Cellulose acetate fibres are dyed in an alkaline hydrosulphite vat with amino- or nitro-anthraquinones or their alkyl or halogen derivatives; in examples, the 1- or 2-amino, 1 : 5-dinitro, 1 : 5-diamino, 1-amino-2-methyl, 1-methylamino, 1-amino-2 : 4-dibrom, 1-amino-5-chlor, and 1-nitro-4-chlor derivatives of anthraquinone are employed, giving orange, yellow, red-violet, or pink shades.  Azo dyes, forming on the material.-The dyeings obtained as described above may be diazotized and developed, e.g. with b -naphthol.
Patent GB-1451548-A (GB)
Title: Discharge of metal from casting ladles
IPC: B22D41/50
Filed: 1974-03-29
Abstract: 1451548 Moulding a well block for a metal casting ladle ZIRCONAL PROCESSES Ltd 29 March 1974 14044/74 Heading B5A [Also in Division F4]  A moulded and sintered well block (for insertion into a socket in the base of a casting ladle) defines a through passage (for receiving a molten metal discharge nozzle) and comprises an upper part 1 of rectangular external cross-section and a lower part 2 of circular external cross-section, such parts being formed in one piece from a refractory material. The block may be made by forming a slurry of refractory powder(s), a gellable binder and a gellation accelerator, allowing the slurry to set in a mould into the required shape and sintering the shape. The binder and gelation accelerator may be ethyl silicate and amine(s) (e.g. piperidine and dicyclohexylamine) or may be aluminium hydroxyhalide and an acetate or lactate. The refractory powder may be of mullite plus alumina or of magnesite or magnesite based material. References are made to other specifications for suitable amines, binders and refractory powders and for a suitable valve assembly for the nozzle.
Patent GB-881231-A (GB)
Title: Feeding device, especially for metal stampings
IPC: B21D43/10
Filed: 1960-04-22
Abstract: 881,231. Feeding mechanisms for stamping presses. BUDD CO. April 22, 1960 [April 22, 1959], No. 14142/60. Class 83 (4). A device for feeding preformed articles to a machine comprises gauging mechanism adapted to receive an individual article in a predetermined position and transfer mechanism including means for picking up an article from said gauging means, means to move such article substantially horizontally to the machine to be fed for a predetermined distance, and means for releasing such article so as to deposit it in a predetermined position in the machine. The feeding device 10 is to feed a preformed metal stamping 11 on to the lower stationary die 12 of a forming press 13 which has an upper vertically reciprocating die 14. The device comprises a mobile framework 16 adjustable for height by screws 17. A gauging fixture 20 provided with form pieces 21, Fig. 4, for engaging the margins of the stamping is secured to a table 22 supported by a frame 23 vertically reciprocable in the framework 16 by a fluid pressure cylinder 25. An abutment 29 limits the upward movement of the table and also carries a limit switch for cutting-off the fluid supply to the pressure cylinder 25. The table 22 is longitudinally and transversely adjustable relatively to the frame 23 to enable the table to be accurately positioned relatively to the press. After the stamping has been placed on the fixture 20 it is raised by operation of cylinder 25 into contact with a number of suction cups 48 carried by the head 47 of the transfer and feeding mechanism. The head is adjustably secured to members 50, 51 and 52 forming a first linkage parallelogram, the member 52 of which also forms one side of a second linkage parallelogram comprising links 53 and a stationary member 54 secured to a cantilever 55. One of the members 51 has its mid-portion journalled at 56 to a crank 57 on a shaft 58 which is rotated by a rack 61 driven by a fluid-pressure cylinder 64. An adjustable abutment 65 on the rack operates a limit switch which controls the cylinder 64 and the suction cups 48. The abutment 65 also limits the downstroke of the rack. A second crank 67 on the shaft 58 is connected to a fluid cylinder 69 which acts to dampen the movement of the transfer device at the end of the strokes whilst boosting the initial movement thereof to speed up the feeding stroke. In operation, on downward movement of the rack the stamping 11 is delivered to the press and the suction cups are vented to deposit the stamping on the die 12, Fig. 1, whereupon the rack is raised to return the feeding head to its initial position, Fig. 2. While the upper die is carrying out its working stroke the gauging fixture with a new stamping thereon is raised into contact with the suction cups in readiness for feeding to the press when the stamping 11 has been removed.
Patent GB-569694-A (GB)
Title: Improvements in apparatus for cutting wire and the like
IPC: B65H45/101
Filed: 1943-09-01
Abstract: 569,694. Shearing. IRELAND, W., PASMORE, H. T., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. Sept. 1, 1943, No. 14276. [Class 83 (iv)] [Also in Group VIII] A machine for cutting wire, strip, ribbon, cord, &c. 34 into predetermined lengths comprises a shaft 15 driven at a constant speed, a feeding device 35 driven from the shaft 15 through a clutch 30, means for clutching and de-clutching after a set time interval, and a cutting device operated while the feeding device is declutched. The clutch 30 is normally held in driving engagement by a rod 18 and spring 77, causing the shaft 15 to drive bevels 31, 32, 33 and feed rollers 35, 36. The bevel 32 is on a shaft 51 and drives a shaft 53 and a disc 54 thereon through change-speed gears 52. The disc 54 drives a disc 55 through an adjustable roller 56 to give any speed between two limits. A cam 60 is mounted, with a small free movement controlled by a spring 65, Fig. 2, on the disc 55 and, when the desired length of wire 34 has been fed, it engages a follower 70 to move a lever 71 and arm 73 to the left, a wedge projection 75 of the arm riding over the pointed top of a lever 76 which is pivoted at 76a, pinned to the rod 18 at 76b, and adjusted by a stop 80. The cam 60 is adjusted by a screw 64 to release its follower directly the wedge 75 has passed the top of the lever 76. The lever 71 is arrested at this point by a stop 90 and a spring 81, pulling the arm 73 down, causes the wedge 75 to move the lever 76 to the right, against the action of the spring 77, thus releasing the clutch 30 and closing a clutch 19. This acts, through gearing 20 and a shaft 21, to rotate an eccentric cutter 22 which severs the wire 34. At the same time a cam 23 on the shaft 21, normally held in the position shown by a. light spring 23b, acts on a projection 74 of the arm 73 to move this to the right, the wedge 75 riding over the lever 76 which is moved to the left by the spring 77, thus reversing the clutches 19, 30 and causing the cycle of operations to recommence. The cut pieces of wire are deflected by a guard 44. The rotary cutter 22 may be replaced by one continuously operated and moved into and out of range of the wire at appropriate times or by a spring-operated cutter which is set and latched by a continuously rotating cam and is released, to cut the wire, by the declutching of the feeding means.
Patent GB-884880-A (GB)
Title: A system of automatically controlling road vehicles
IPC: G08G1/0967
Filed: 1960-04-25
Abstract: 884,880. Automatic speed-control systems. GENERAL MOTORS CORPORATION. April 25, 1960 [May 6, 1959], No. 14380/60. Class 38 (4). A system for automatically controlling a road vehicle 12 comprises a generator 14 for developing a command signal voltage, a generator 18 for developing a vehicle speed signal voltage, and two separate conductors 16, 20 in the road connected respectively to the generators. Apparatus on the vehicle is arranged to develop signal pulses corresponding in frequency to the frequencies of the command and speed signal voltages, and to correlate these pulses to produce an output voltage corresponding to the difference between them, a speed control device on the vehicle being adjusted in response to the output voltage. The generator 14 develops a carrier wave keyed or modulated at a frequency corresponding to the command speed, the generator 18 producing an unmodulated carrier wave. The conductor 20 is of criss-cross configuration to afford alternate zones of high and low signal intensities, a winding 24 having a signal voltage induced in it representing the vehicle speed. This signal voltage is transferred through a demodulating circuit 26 to an amplifier 28, differentiator 30, and clipperamplifier 32 producing peaked pulses corresponding in frequency to road speed. These peaked pulses are delivered to counting circuits 34, 36. Signal energy from cable 16 induces in winding 40 a command signal voltage which is applied to demodulator 42 producing squarewave pulses which are increased by amplifier 44 before being impressed on counting circuit 34. An amplifier inverter 46 ensures that the command signal delivered to counting circuit 36 is out of phase with respect to the command signal applied to the circuit 34. A summing circuit 60 adds the outputs from each counting circuit, the combined output voltage being applied to integrator 62 producing a D.C. voltage which is amplified and applied to throttle servo 66, so altering the throttle setting that the road speed is related to the command speed. The counting circuits each comprise a capacitor which is charged by the peaked wave pulses during the off-periods of the square-wave pulses, the charge being erased and the counting circuit reset before any net voltage is developed across the capacitor when the frequencies of the two pulses are equal. If the road speed tends to exceed the command speed, more than one of the peaked wave pulses occur during the interval in which the command signal is off, and the net voltage developed across the capacitor will change the output of a transistor connected to the summing circuit, Fig. 3 (not shown). The throttle opening is then reduced until the vehicle speed corresponds to the command speed. In another arrangement, the throttle setting is adjusted towards a datum value when the road speed either exceeds or is less than the command speed. A stop relay 68 responds when there is a loss of command signal voltage to render the amplifier 64 inoperative and to close the throttle.
Patent GB-247056-A (GB)
Title: Improvement in metal wheels
IPC: B60K17/04
Filed: 1925-06-02
Abstract: 247,056. Marks, E. C. R., (Budd Wheel Co.). June 2, 1925. Wheel-driving attachments; transmision gear of invariable ratio.-A driving gear 35, mounted in the central plane of a disc wheel on the inner side of the discs 10, 11, is carried by a ring 37 attached by bolts to the wheel discs. The driving pinion 57 meshes with internal teeth 36 on the gear 35 and is caried on ball bearings in a sleeve 53, the pinion 57 being splined to the drive shaft 56. To prevent dust and the like entering the interior of the wheel, felt packing-rings 44, 49 are fitted as shown in grooves in the outer part of the gear 35 and in the flange 46 of a non- rotatable cover plate.
Patent GB-373401-A (GB)
Title: Improvements in or relating to culinary utensils
IPC: A47J29/04
Filed: 1931-05-18
Abstract: 373,401. Egg - cooking apparatus. THOMPSON, 1. W., 57, East Park Avenue, Hull. May 18, 1931, No. 14601. [Class 28 (i).] A cooking apparatus, more particularly for cooking eggs, comprises a tank 10, an intermediate chamber 11, a float chamber 12 and a vessel 22 in which the pans 14 for holding the food are positioned. Water from the tank 10 percolates through the pipe 15 into the chamber 11 where it remains until the level is high enough to start the syphon 16, 28 which drains the water suddenly into the chamber 12 and raises the float 13 which is connected to the pans 14 by U-shaped guide wires 18, 19. The pans are thus raised from the water and the cooking ended. The chamber 11 is tubed at 21 to permit the elevation of the wires 18, 19. The time period for the cooking may be varied by altering the bore of the pipe 15 or the effective level of the syphon 16, 28. The vessel 22 may be circular, elliptical or fluted according to the number and arrangement of the pans 14 employed.
Patent GB-611205-A (GB)
Title: Improvements relating to magnetic field responsive devices
IPC: G01R33/02
Filed: 1942-06-17
Abstract: 611,205. Electric control systems. PURVES CORPORATION. June 17, 1942, No. 14657/43. Convention date, March 28, 1941. Divided out of 611,204. [Class 40 (i)] [Also in Group XXXVI] The magnetic core of a flux valve is symmetrical about an axis and has a central part having a member directed along the axis of symmetry carrying a coil that serves as the exciting winding, the core also having at least two elongated parts carrying output windings radiating from the central part in directions equi-angularly spaced and having their outer ends lying in a plane normal to the axis. One arrangement, Figs. 1, 2 and 5 (not shown), is identical with that described in abridgment 611,204. In a modification, Figs. 3 and 4, the core consists of a single plate of magnetically-permeable material with four arms 31, 32, 33, 34, at right angles. At the centre is a core 44 surrounded by an exciting winding 43 and a cup 45 closing the magnetic circuit. A closed magnetic circuit in which the flux due to the exciter is balanced in a portion 48, 49 of each of the pick-up cores is consequently obtained. The windings of oppositelydisposed pick-up coils 39, 41 and 40, 42, are paired as shown in Fig. 6, so that the fields of the transmitting winding are at right-angles to one another. The voltages induced in the coils in the leads 50, 51, 52, are proportional to the corresponding component of the magnetic field in which the transmitter is located, the leads being connected to a receiver having two stator coils 53 at right-angles to one another. The Z-shaped armature 54 is excited by a winding 55 connected to the A.C. source and operating an indicator 56. Fig. 7 shows means for counterbalancing flux leakage in the balanced magnetic circuits of the split pick-up core 20. One part of a screw fastening 57 is secured to a base 60 fastened to the end of the stationary coil 16 and the other part is secured to the spacing connection of the pick-up core, so that the transverse position of the core may be adjusted with respect to its coil. Fig. 8 shows a modification for use with the transmitter shown in Figs. 3 and 4. A hole is provided in the core 49 large relative to the screw 44 and is covered by a plate or washer 61 of magnetically-permeable material held against the hole by the screw so as to allow lateral adjustment of the cup 45. Specifications 599,428 and 611,204 are referred to.
Patent GB-502227-A (GB)
Title: Twine heddle
IPC: D03C9/02
Filed: 1938-05-17
Abstract: 502,227. Loom healds. ANDREWS, I., and CODDINGTON, H. O. May 17, 1938,No. 14672. [Class 142 (i)] The eye members 7 at the ends of a twine heald 5 are slotted at 8 for the supporting bars and have extensions 9 provided with spaced clamping lugs 10 which are clamped round the twine heald, the spaces between the lugs being sufficiently large to accommodate binding material (e.g. varnish) for anchoring the eye members to the twine.
Patent GB-343400-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H1/64
Filed: 1930-05-13
Abstract: 343,400. High-tension switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Mendenhall, V. D.; Baltimore, U.S.A.) May 13, 1930, No. 14743. Convention date, May 13, 1929. [Class 38 (v).] Contacts.-A terminal support 21, particularly for an outdoor insolating switch, carries a pair of members 24 each of which is formed with two sockets 25 to receive lugs 26 on parts 10, 11 forming a housing for fixed contacts. Springs 28 bias the parts 10, 11 about the sockets so that normally the top of the housing is closed. When the contact leader 14 moves to engage its fixed contacts, it engages the surfaces 19 to separate the two parts and at the same time clears itself of ice and snow deposits, the two parts re-engaging one another under the action of their springs 28 when the blade 14 is in contacting position. Surfaces 20 cause the separation of the parts when the blade is removed to open the switch. The fixed contacts comprise opposed parallel plates 12 in an enlargement 30, the plates receiving the blade 14 between them and being biased by springs similar to 28 so as to be self-aligning.
Patent GB-550969-A (GB)
Title: Improvements in or relating to self-tightening chucks
IPC: B23B31/12
Filed: 1941-11-17
Abstract: 550,969. Chucks. JACKSON, L. MELLERSH-. (Jacobs Manufacturing Co.). Nov. 17, 1941, No. 14774. [Class 83 (iii)] Self-tightening chucks of the type in which eccentric jaws are simultaneously rotated by worm gearing for the initial tightening have lost motion in the drive to each jaw to permit selftightening under load. The jaws 20 have ribs on part of their periphery, which overlap when gripping small diameters, and are mounted on pins 14 in the chuck body and provided at 24 with teeth that engage worms 101, 93 on a transverse spindle 40. The worm 41 is of oppositehand to the worms 42, 43 and the worm gear has considerable backlash to permit the selftightening. The spindle is retained in place by a screw 44 in a counterbored recess, and the jaws bear on the pins 14 through rollers 23. The parts 14 of the pins are eccentric with respect to the ends 12 to provide for adjustment. In a modification the worms engage separate worm wheels having a lost-motion connection to the jaws and having some teeth removed to facilitate assembly. The pitch of the worms may be such that they are not self-holding and do not influence the final grip.
Patent GB-424625-A (GB)
Title: Manufacture of dyestuffs containing chromium
IPC: C09B45/16
Filed: 1933-05-22
Abstract: Chromium compounds of azo dyes are made by treating with an agent yielding chromium, the azo dyes: a 4-halogen-, 4-alkyl- or 4-alkoxy - 2 - aminophenol --> a 1 - sulphoaryl-3-methyl-5-pyrazolone which contains no -NHSO2-aryl group in its aryl residue, which o-oxyazo dye contains at least one further SO3H group.  They dye wool in uniform pure red shades and are freely soluble in water.  In examples: (1) the dyestuff 4-chloro-2-aminophenol-5- or 6-sulpho acid --> 1-(3<1>- or 4<1>-sulphophenyl)-3-methyl-5-pyrazolone is treated with chromium sulphate; 4-methyl-2-aminophenol-5- or 6-sulphonic acid may also be used; (2) the dyestuff 4 - chlor - 2 - aminophenol - 6 - sulphonic acid --> 1-(2<1>-or 3<1>-sulpho)-phenyl-3-methyl-5-pyrazolone is treated with a solution of chromium oxide in sulphuric acid; (3) the dyestuffs in (1) are refluxed with chromium sulphate; (4) the dyestuff 4-chloro-2-aminophenol - 6 - sulphonic acid --> 1 - (2<1> : 5<1> dichloro - 4<1> - sulpho) - phenyl - 3 - methyl - 5 - pyrazolone is chromed as above; the 1-(2<1>-methyl-4<1>-sulpho)- or 1-(4<1>-nitro-2<1>-sulpho)- or 1 - (2<1> - oxy - 3<1> - carboxy - 5<1> - sulpho) - phenyl-3 - methyl - 5 - pyrazolones may also be used; (5) 4-chloro- or 4-methyl-2-aminophenol --> 1 - (2<1> : 5<1> - disulpho) - phenyl - 3 - methyl - 5 - pyrazolone is similarly chromed; (6) 4-chloro-2 - aminophenol - 6 - sulphonic acid --> 1 - (4<1>-sulpho) - a  - naphthyl - 3 - methyl - 5 - pyrazolone is chromed as above; (7) an example of the dyeing process.  Other components specified are: 4-methoxy-2-aminophenol-5- or 6-sulpho acid, 4-methoxy-2-aminophenol and the corresponding bromo-, ethyl- and propyl-derivatives of the above; 1-(2<1>-methyl- or 2<1>-ethyl-5<1>-sulpho)- and 1-(2<1>-sulpho-4<1>-ethoxy)-phenyl-3-methyl-5-pyrazolones and further sulphonated or halogenated or nitrated derivatives of 1 - (4<1> - sulpho) - a  - naphthyl - 3 - methyl - 5-pyrazolone.  Specifications 15456/15 and 16916/15, [both in Class 2 (iii)], are referred to.
Patent GB-769055-A (GB)
Title: Improvements in or relating to the discharge of static electricity from textiles etc.
IPC: H05F3/06
Filed: 1955-05-23
Abstract: 769,055. Discharging static electricity. INSTITUT TEXTILE DE FRANCE. May 23, 1955 [July 28, 1954], No. 14809/55. Class 35. Static electricity is removed from a fibre or textile by means of a jet of gas which has been in contact with a radio-active substance. As shown in its simplest form, a jet of gas from nozzle 3 impinges on a radio-active layer 2 and bounces off at 5 to engage the textile surface. The whole apparatus may be inverted and the radio-active surface may be corrugated. Various shapes of jets are described to produce a flat jet, for example, and the ratio-active substance may be an internal coating of the tube. The jet may be pivoted and may combine two gases in mixture, and the rebounded gases may themselves be led through a nozzle, which may be apertured to receive the thread to be discharged. The gas may be air dried with phosphorus anhydride, or a mixture of air and oxygen or ozone. The air may be humidified.