baber/WOPTO huggingface dataset:
Patent GB-273046-A (GB)
Title: Improvements in or relating to the frosting of glass
IPC: C03C15/00
Filed: 1926-04-16
Abstract: 273,046. Siemens & English Electric Lamp Co., Ltd., Oakley, P. D., and Aldington, J. N. April 16, 1926. Etching.-A frosting-medium for treating the inside surfaces of hollow glass articles such as electric lamp bulbs comprises alkaline fluorides, or other fluorine-containing substances, together with hydrochloric acid or a soluble chloride or both, the object being to strengthen the bulb by producing a surface having a structure of cellular formation. Sulphuric acid. soluble sulphates, or waterglass may also be added to the frosting- medium. In examples, the medium comprises a solution of ammonium bifluoride together with hydrochloric acid, or, instead of the acid, ammonium chloride and either sulphuric acid or waterglass. The bulb is first cleaned with dilute hydrofluoric acid, and is then filled with the frosting medium, which is kept at a temperature of 25‹ C.; alternatively, the bulb is filled with a solution having a temperature of 20‹ C., and is stood in a water bath heated to 45‹ C.
Patent GB-454078-A (GB)
Title: Improvements in aerial floating mines for defence against aeroplanes
IPC: F41H11/04
Filed: 1936-04-04
Abstract: 454,078. Balloons. TINSSONNIER, G., Le Plissay, Olivet, Loiret, France. April 4, 1936, No. 10043. Convention date, April 17, 1935. [Class 4] [See also Group XXI] A balloon for supporting a bomb in the air is provided with a hoop adapted to be expanded by the balloon as it rises and at a given height to release a weight which opens an exhaust valve to cause the balloon to fall. The balloon may comprise a number of lobes 1, Fig. 1, in a known way. The hoop is made up of two cables 3, 4 attached together to the balloon at one end 2 and slidably connected at their other ends to flexible tubes 5, 6 the tubes being clamped to the desired position on the cables by screws 7, 8. The free ends of the tubes pass through guiding rings 9, 10 on the balloon and through an intermediate ring 11 to which is attached a weight 14, Fig. 3, when the balloon dilates sufficiently the tubes are pulled out of the ring 11, the weight 14 falls with the ring and pulls on a cord 12 connected to an exhaust valve 13, which is thereby opened. The bomb 15 is suspended from the balloon by a cable 21 and is provided with a primer 16 urged upwards to a safe position by a spring 17 but drawn down to the armed position in the mine by a weight 19 at the end of a cable 18 when the weight is in the air. The balloon may be provided with a long cable 22, the end of which remains permanently on the ground to facilitate landing.
Patent GB-293781-A (GB)
Title: Manufacture of n-diarylsulphonyl derivatives of arylaminesulphonic acids
IPC: C07C311/37
Filed: 1927-04-12
Abstract: 293,781. British Dyestuffs Corporation, Ltd., and Hailwood, A. J. April 12, 1927. N : N-Diarylsulphonylarylaminesulphonic acids; dye preparations. - N : N-diarylsulphonylarylaminesulphonic acids are produced by condensing arylsulplionic halides (2 mols.) with a sulphonated primary arylamine (1 mol.), or by condensing the N-monoarylsulphonylarylaminesulphonic acid (1 mol.) with an arylsulphonic halide (1 mol.) The products are tanning agents and may be used as assistants in the preparation of dyes and pigments in finely-divided form. On hydrolysis with sulphuric acid both arylsulphonyl groups are removed, whilst with weak sodium hydrate one arylsulphonyl group is removed. According to examples :-(1) sodium sulphanilate (1 mol.) is condensed with p-toluenesulphonic chloride (2 mols.) in the presence of sodium carbonate; (2) sodium metanilate is similarly condensed with ptoluenenelphonic chloride.
Patent GB-600459-A (GB)
Title: Electrical sawtooth wave generating system
IPC: H03K4/86
Filed: 1944-05-24
Abstract: 600,459. Saw-tooth generating circuits. STANDARD TELEPHONES & CABLES, Ltd. May 24, 1944, No. 10102. Convention date, Jan. 23, 1943. [Class 40 (vi)] In a saw-tooth generator, a gas-filled valve, connected in series with a condenser across an A.C. source, is fired by synchronizing pulses to charge the condenser, the condenser discharging while the valve is extinguished. The valve 10, Fig. 1, fed from an A.C. supply over resistance R1, is fired by a synchronizing pulse applied to the grid to charge condenser C1 rapidly, the valve being extinguished as the cathode approaches the anode potential, the condenser discharging over resistance R2 to form the trailing edge. Bias for the valve 10 is furnished by the potential drop over condenser C1 filtered by the resistance-condenser combination R3, C2, the value of bias being adjustable by means of potentiometer R4. In a modification, Fig. 4 (not shown), the valve 10 is fed with A.C. voltages for both anode and grid supply, the voltages being in phase opposition. To obtain push-pull output at terminals D, F, Fig. 3, a valve 45 is connected in a similar manner to that shown in Fig. 1, a second valve 46 being provided with a condenser C5 and resistance R9 in the anode lead. Upon a synchronizing pulse firing valve 45, the valve 46 is caused to fire due to the coupling condenser C6. The circuit 50 is provided to supply a standing bias for valve 46. Specification 593,467 is referred to.
Patent GB-431638-A (GB)
Title: Improvements in and relating to contouring apparatus
IPC: B23Q35/123
Filed: 1935-04-01
Abstract: 431,638. Distant control systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 1, 1935, No. 10130. Convention date, March 31, 1934. [Class 40 (i)] In a contouring apparatus in which a pilot controls a tool through a resultant-field type signalling system, an electrical differential device is included in the circuit between the pilot and the tool to enable a plurality of roughing cuts to be made. As shown in the Figure as the pilot 17 moves over the template 12, the rotor of transmitter 27 is moved relative to the stator so that current is induced in the rotor of receiver 28. One pair of the valves 20, 21 then becomes effective to drive the motor 14, which raises or lowers the tool 11 and rotates the rotor of receiver 28 until balance is restored in the receiver. Hunting is prevented by the saturable core-type reactor device 37. Between the transmitter 27 and receiver 28 is placed the differential device 32. This comprises a poly-circuit rotor and a polycircuit stator controlled by handle 32a. By altering the relative positions of stator and rotor in the differential device, the axis of the magnetic field in the receiver 28 can be shifted and consequently the receiver system will balance with the tool 11 at different heights, thus enabling roughing cuts to be made.
Patent GB-378436-A (GB)
Title: Improvements in apparatus for feeding and packing slivers of fibrous substances intocans or other receptacles
IPC: B65H54/84
Filed: 1931-04-07
Abstract: 378,436. Tramping devices for packing slivers into cans. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd. and SUFFERN, W. S., Wellington Foundry, Leeds. April 7, 1931, Nos. 10172 and 14509. [Class 120 (iii).] In apparatus for packing slivers into cans the reciprocating packing or tramping member 2, Fig. 2, is carried on a rod 3 guided in a supporting sleeve 4, a weighted catch 20, 21, Fig. 4, being pivoted on the sleeve 4 and being adapted to engage the rod 3, when desired, in order to retain the member 2 inactive. The members 2, 3, 4 may also be turned from the normal operative position into the inoperative position shown dotted in Fig. 2, and be there retained by a notch 17w. The rod 3 carrying the member 2 is supported by a chain 5 passing over a pulley 6 and is reciprocated through a chain 9 engaging a quadrant 8 and connected to a crank pin 9b on a disc 10. A hand-lever 17 pivoted at 16 is formed with two notches 17w, 117w, and a catch 17x on the end 24a of the sleeve 4 is adapted to engage either the notch 117w to retain the tramping gear in its operative position, or the notch 17w to hold the members when swung into the inoperative position, Fig. 2. The catch 20 is pivoted at 20c on a bracket 19 secured to the sleeve 4, the weighted member 21 being also pivoted at 20c and having a curved slot 21a which may engage a pin 20a to hold the lower end of the catch 20 against the bracket 19 and its upper end 20a clear of the sleeve 4. When it is desired to retain the tramping member in its highest position the weighted member 21 is thrown over, Fig. 2, and the catch 20 engages a notch 3w in the rod 3. In a machine having two series of cans B, Bl, Fig. 1, the tramping members 2, 2a are carried on rods 3, 3a guided in sleeves 4, 4a and are reciprocated by chains 5, 5a passing over pulleys 6, 6a, the shafts 7, 7a being actuated by chains 9, 9a engaging quadrants, the chain 9a passing round a guiding disc 9c so that the reciprocating members 2, 2a are balanced.
Patent GB-1379473-A (GB)
Title: Inspection methods apparatus and systems
IPC: G01B11/04
Filed: 1972-03-04
Abstract: 1379473 Digital measurement of dimension SENSORS Inc 4 March 1972 10226/72 Heading G1A The dimensions of an object having an undulating shape, such as a threaded screw or bolt, are measured by an array of spaced photoelectric devices as the object passes in front, the photo-electric devices being repeatedly interrogated as to which is shadowed by the object, either simultaneously or consecutively many times during the passage of the object. As shown in Fig. 2 two spaced arrays of photoelectric devices 44, 64 view the boundaries of a fitted screw, values of the diameter of the screw so obtained being compared with threshold diameters 66, 68 for the major and minor diameters of the thread. The detection of a major or minor diameter causes a respective counter to be integrated which on the passage of the screw should attain predetermined counts if the screw is acceptable. Alternatively, the diameter values obtained by the photo-electric arrays can be compared with stored values, a start photo-electric device sensing the arrival of a screw.
Patent GB-723568-A (GB)
Title: Improvement in voltage control in electrostatic precipitators
IPC: B03C3/66
Filed: 1952-04-23
Abstract: 723,568. Supply and switching systems for consumption apparatus. AIR PREHEATER CORPORATION. April 23, 1952 [May 3, 1951], No, 10229/52. Class 38 (4). [Also in Group XL (a)] An electricity supply system for an electrostatic precipitation of the type, described in Specification 684,024, [Group XL (a)], in which separate banks of collecting electrodes are cleaned in succession, by a rotatable pipe 38 above the electrodes, each bank being de-energized during the cleaning period, includes an individual power supply for each electrode bank, and switching and relay gear to reduce partially the voltage on each electrode bank prior to the cleaning period, and after the cleaning period to restore the voltage, first partially, and then fully. The shaft carrying the cleaning pipe 38 carries also rotary switches 67, 68 and 77 for operating the voltage supply circuits. Each power supply circuit includes a rectifier circuit 52 connected to the secondary of a transformer 51 whose primary is connected to the power lines by a circuit including ignitrons 53, 54. The ignitrons are controlled by thyratrons 55, 56 whose grids are normally biased off. An impulse transformer 57 whose primary is connected to an auxiliary power source through a phase-shifting circuit 60, applies starting impulses to the thyratron grids, over-riding the bias voltages. These impulses are supplied when the contacts 711 in the primary of the impulse transformer 57 are opened in response to the energization of a relay 71 through the cam 66 of rotary switch 68 closing contacts 70. Opening of the contacts 711 eliminates shorting of the resistor 61 in circuit 60. The impulses supplied to the thyratron grids are late in phase, and therefore delay the starting phase of the ignitrons. The voltage applied to the primary of transformer 51 is reduced, and thereby reduces the D.C. voltage applied to the precipitator bank. In the cleaning period for the bank, a rotary switch 67 energizes, through cam 69 closing contacts 72, a relay 73 which by opening contacts 731 interrupts the supply of starting impulses to the thyratron grids. The ignitrons become deenergized, and no voltage is applied to the precipitation bank. After the cleaning period first the contacts 72, and then the cam 66 is disengaged from the contacts 70. An overvoltage relay 80 is provided to operate the voltage-reducing relay 71 in the event of a flash-over in the ionizer section of the precipitator. In this event, triode 83 which controls the relay 80, loses its grid bias voltage, since with a reduction in the ionizer voltage, supplied to the ionizer section through resistor 89, glow tube 84 in series with resistor 86 in circuit 87, closes to become conductive. A further circuit associated with the grounded connection to the rectifier bridge 52, operates a relay 92 to cut off all control circuits in the event of a shortcircuit in the precipitator bank. A rotary switch 77 operates to restart the circuits automatically after the cleaning period.
Patent GB-1107148-A (GB)
Title: Improvements in laser devices
IPC: H01S3/213
Filed: 1967-03-06
Abstract: 1,107,148. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. 6 March, 1967 [30 Sept., 1966], No. 10377/67. Heading H1C. A laser includes as the active medium a solution of a fluorescent organic material, the molecules of which have an allowed electric dipole fluorescent transition. The material is disposed in a resonant cavity and is excited by a beam of light. In one embodiment the active medium is a metal porphyrin, e.g. chloroaluminium phthalocyanine, dissolved in an organic solvent such as ethyl alcohol, or an inorganic solvent such as H 2 SO 4 , or in a glassy solid. The medium is side-pumped by means of a Q-switched ruby laser, e.g. of the kind described in Specification 1,036,683. Ground state molecules of the active medium are thereby raised to the first vibrational level of the first excited singlet state to allow a stimulated transition between the latter state and one of the excited vibrational levels of the ground state, at 7560Š Instead of a ruby laser other intense light sources such as a flashlamp may be used, particularly those in which the rise time of the light pulse is short. A second embodiment uses a photo-sensitizing dye such as 3-3<SP>1</SP>-diethylthiatricarbocyanine iodide (DTTC iodide). As shown in Fig. 5 the active medium in cell 26 is end-pumped by Q-switched ruby laser 22, 23, 25, 27, the two lasers having the cavity mirror 27 in common. The Q-switching element 23 contains a bleachable dye such as vanadyl phthalocyanine. The DTTC iodide in cell 26 may be dissolved in dimethyl sulphoxide, ethyl alcohol, methyl alcohol, 1-propanol, dimethyl formamide, acetone, butyl alcohol, glycerine or ethylene glycol. By varying the concentration of DTTC iodide the output frequency can be varied for tuning between 0À78Á and 0À86Á. The output beam divergence of the DTTC iodide laser is stated to be very much less than that of the ruby pumping laser.
Patent GB-164572-A (GB)
Title: Improvements in the construction of sulphuric acid chambers
IPC: C01B17/84
Filed: 1920-04-14
Abstract: 164,572. Dior, R. E. April 14, 1920. Sulphuric acid.-In a series of sulphuricacid chambers, their size and height decrease in order, the tallest being connected with the Glover, and the shortest with the Gay Lussac tower. Each resembles in shape an inverted funnel in which the sides of the upper part are more vertical than the sides of the lower part. The gases, which enter at the bottom and leave at the top, are caused to move spirally by placing the inlet and outlet g<1>, g respectively, Fig. 2, tangentially to the circumference of the chamber. In order to control the flow of the gases, a vertical shaft B placed in the centre of the chamber may be employed. For the same purpose, jets of steam, atomized water, or dilute sulphuric acid may be directed in a downward direction by injectors from the top of the chamber or from the sides as shown at e, Fig. 6. Sulphuric acid of about 53‹ BÚ is poured continuously down the inner surface of the chamber by means of the annular groove c and cap C, or by any other device such as the turbine D. The outer walls are kept cool by means of cold water which flows from the trough F and is collected at F<1>. When four of such chambers are connected in series, the dilute, acid produced in the second is used to supply the first, and that produced in the third and fourth is conveyed to the top of the second. The strong acid formed in the first chamber is partly removed from the system and the remainder is led to the third and fourth chambers. In this way the dilute acids are concentrated in the first two chambers, and the nitrous gases recovered to some extent, in the last two chambers, thereby assisting the working of both the Glover and Gay Lussac towers.
Patent GB-141727-A (GB)
Title: Process for drying wood
IPC: F26B5/04
Filed: 1920-04-14
Abstract: 141,727. Holzbearbeitungsges. Haring, K., and Voit, E. March 28, 1919, [Convention date]. Drying wood.-The wood is uniformly exposed on all sides to the action of radiant heat, and is placed as nearly as possible at the centre of radiation, the temperature being preferably at first low and then raised by stages. The temperature may be from about 30‹ C. to about 90‹ C. The heat may be derived from hot water circulating in pipes within the chamber. It is advantageous to conduct the drying in vacuo.
Patent GB-436162-A (GB)
Title: Improvements relating to seats
IPC: A47C11/00
Filed: 1934-04-06
Abstract: 436,162. Seats. DEANE, H. J., 30, Lytton Grove, Putney, London. April 6, 1934, No. 10462. [Class 52 (ii)] Seats in continuous lengths of the kind used in stands &c. comprise blocks or supports spaced at intervals and seat portions which rest on the blocks and engage with each other and with members carried by the blocks, the arrangement being such that when one seat portion of a series is withdrawn the remainder can easily be withdrawn. In one form, the blocks 1, 2, Fig. 1, are of concrete and spaced about three feet apart. The wider supports 1 are provided with securing members 3 having hooked ends which engage transverse bearing plates 7 to which the slats 6 forming the seats are secured. Each seat section carries at one end one or more pins 8 projecting into the space between the slats of the adjacent section. The end section of a series retained in position by means of a locking bolt 10 which prevents it from being moved sufficiently far to disengage the plate 7 from the hooks 3. The back of the seats may comprise a series of members 40 passed through eyes 42 in uprights 41, and having bevelled ends which overlap within the eyes. The end member is secured by a bolt 44 to the end upright. The backs may alternatively be retained by the seat members, or they may be hinged thereto. In the form shown in Fig. 5, the seat members are arranged in pairs, one member comprising slots 12, 12 and the other comprising slots 13, 13, with separate bearing plates 14, 15 respectively. Spacing pieces 16 are carried by the slots 13 and project between the slots 12. The hooks on the supports are in this case formed with double ends.
Patent GB-454854-A (GB)
Title: Master cylinder for hydraulic power transmission and more particularly for hydraulic brake systems
IPC: B60T11/22
Filed: 1935-04-04
Abstract: 454,854. Brakes. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. April 4, 1935, No. 10476. Convention date, April 5, 1934. [Class 103 (i)] A chamber 3 between a hydraulic master cylinder 1 and the pipe lines 31 is connected with the reservoir by a check valve 21 adapted to open from the reservoir in order that liquid from the reservoir may relieve the vacuum formed in the pipe lines when the brake is released. The Specification as open to inspection under Sect. 91 comprises also a master cylinder operated by a mechanical servo comprising a disc on the vehicle driving shaft adapted to be engaged with the casing and with a disc carrying two cams which operate the master piston, in either direction of rotation of the driving shaft by a link supported by a link pivoted on the casing. The pipe line is connected to a cylinder having a piston connected to the brake pedal and adapted to give a reaction on the driver's foot through a telescopic spring connecting rod which yields at a certain pressure in order that additional foot pressure will not increase the braking pressure above the predetermined limit. An internal brake is shown in which the shoes engage an anchor by links which at the other end engage studs on the shoes and intermediately are clamped to the shoe by a bolt passing through oversize openings in the shoe. In a modified servo device a disc is moved against a revolving disc by a face cam arrangement comprising a ball between conical notches in a stationary disc and a disc rotated by hand. This subject-matter does not appear in the Specification as accepted.
Patent GB-105305-A (GB)
IPC: A61L2/20
Abstract: 105,305. Thornton, A. A., (Central City Chemical Co.). Oct. 12, 1916. Portable oil stoves for disinfecting.-The fuel pan 1, Fig. 2, and tubular perforated wick screen 5 of a fumigator are bayonet-jointed together so as to nip between them projections 4, Fig. 3, on the tubular wick 3. The disinfectant cup 11 is reduced at 10 to fit into the wick screen. and, for packing, is inverted so as to stand inside the pan 1 and house within itself a supporting-ring 19 and asbestos mab 21. The cup 11, when inverted, is sealed by a cord coiled round its lip and saturated with liquid paraffin, which is allowed to congeal.
Patent GB-105463-A (GB)
IPC: D01B3/08
Abstract: 105,463. Kay, W. R. June 23, 1916. Passing loose fibrous materials through fluids. - In wool-washing machines of the type in which wool is passed by reciprocating rakes along a guiding-trough a in a bowl c, the sides 3, as well as the base, of the guiding-trough are perforated. Rakes of the kind described in Specification 28192/10 may be used. When the guiding-trough is formed by an horizontal perforated partition in the bowl c, the upper parts of the sides are perforated, and longitudinal pockets, which receive liquid and communicate with the lower part of the bowl c, are formed on the outside of the upper parts.
Patent GB-125831-A (GB)
Title: Improvements in or relating to Reapers and Binders.
Inventor: WILMOT ARTHUR MULLETT
IPC: A01D75/02
Filed: 1918-06-27
Abstract: 125,831. Wilmot, A. M. June 27, 1918. Harvesting-machines.-Grain-saving apparatus for use below the binding platform of reaping and binding machines comprises a hopper secured by brackets or straps &c. to the platform and provided with a tray to increase its collecting area, and with a discharge aperture about which a delivery bag is secured. The hopper 1 is trough shaped, with ends sloping down to a wide aperture. The collecting-tray 16 directs falling grain into the hopper. The delivery bag 12 is provided with a closing-belt 13 and a draw-string 14. The hopper is fixed below the binding platform 2 and its hinged ledge 9 by straps 3 wrapped around it and fastened to the platform by bolts 4 and a washer plate 5. The straps 3, together with other straps, prevent straw from entering the hopper.