baber/WOPTO huggingface dataset:
Patent GB-771685-A (GB)
Title: Improvements in music-typewriters
IPC: B41J3/34
Filed: 1954-05-06
Abstract: 771,685. Typewriters. SALMON, L. March 25, 1955 [May 6, 1954], No. 13237/54. Class 100(4) Music typewriters, case shift action. In a music typewriter its platen carriage or alternatively its type-basket is shifted so that the characters on the type-levers strike the paper at different heights, means is provided for sensitively raising and lowering the carriage on the typebasket through a total range equivalent to one octave in steps each equal to #th of the octave. As shown in Fig. 5, a shift key m is coupled by a link q to an arm n pivoted to a side plate t at O. Rigid with the link q is a hollow pin P containing a spring pressed ball engaging in indentations V in the side plate so that the key m can be positioned in any one of eight positions. The key is released by sideways pressure and key restored by means of a return spring bent about the pivot O. Printing-line indicators. The position of the shift key m is indicated by a slotted plate Y, Fig. 7, sliding over a series of staggered marks 50. Paper support. The roller platen a, Fig. 4, has a flat patten extension k covered with a skin of rubber or the like. Special platen rotation, line spacing. A hand-lever b, by means of a ratchet and pawl mechanism rotates the platen a distance equivalent to one octave. A similar lever at the other end of the platen rotates the platen one octave in the reverse direction. Ruling.. Stave lines are formed by the operation of keys 24-32 and traversing the carriage while they are still depressed. Keyboard. A standard keyboard arrangement with musical notation is used (see Fig. 1, not shown).
Patent GB-919006-A (GB)
Title: Improvements in or relating to the control of a pulsed beam of charged particles
IPC: H01J37/24
Filed: 1961-04-13
Abstract: 919,006. Cathode-ray tube circuits. ZEISSSTIFTUNG, CARL, [trading as ZEISS, C. [Firm of]]. April 13, 1961 [April 14, 1960], No. 13248/61. Class 40 (7). [Also in Group XL (a)] In an electron beam generator, the anode 4, Fig. 1, is grounded, a bias is established between the cathode 2 and control electrode 3 to prevent beam generation, intermittent acceleration pulses are applied to both the cathode and the control electrode, and intermittent control pulses are applied between the cathode and control electrode to overcome the bias during a selected portion of each acceleration pulse. The control pulses are keyed to the frequency of the acceleration pulses and are shorter than the acceleration pulses. As shown, bias source 8 and control pulse generator 10 are serially coupled between cathode 2 and control electrode 3 and are energized through isolating transformers 9, 11. Generator 10 is coupled to acceleration pulse generator 7 through a delay line 12 and capacitor 13. In an alternative arrangement, the acceleration pulse generator 17, Fig. 2, is coupled to the primary winding 16 of a transformer having first or second bifilar secondary windings 18, 19. Winding 19 has one terminal coupled to control electrode 3 and the other to ground, and winding 18 has one terminal coupled to cathode 2, the control pulse generator 21 and bias source 20 being serially connected between the other terminal and ground. Generator 21 is coupled to generator 17 through delay line 22. The beam generator may be employed for electron microscopes or for boring, drilling, soldering, welding or other heat treatment of materials.
Patent GB-780925-A (GB)
Title: Apparatus for heating air
IPC: F24H3/08
Filed: 1956-05-01
Abstract: 780,925. Air heating stores. HOCHHEIM, L., [trading as HOCHHEIM MASCHINEFABRIK, F.]. May 1, 1956, No. 13444/56. Class 64(1) An air heating apparatus comprises a recuperator mounted on a combustion shaft 1 and having an annular chamber 7 formed by two casings 6, 8, the inner casing 6 being divided by a partition 9 into a flue gas chamber 2 and a cold air chamber 4 having an opening K for cold air, means whereby the cold air may pass from the chamber 4 through, the chamber 2 to the chamber 7, and an outlet W from the chamber 7 for the escape of heated air. Combustion of a solid, liquid or gaseous fuel takes place in the shaft 1 and the flue gases pass through the chamber 2 and pipes 5, 10 into the chimney. The cold air is preheated b contact with the pipes 5 and partition 9 before passing through pipes 3 to the chamber 7. On the preferred embodiment three outlets W, which may be fitted with adjustable discharge grids or be connected to hot air supply pipes, are provided. The opening K may be constructed to receive air from a motor-driven fan. An insulating jacket 11 may be provided.
Patent GB-528373-A (GB)
Title: Rotary machines of the sliding vane type
IPC: F01C21/08
Filed: 1939-05-05
Abstract: 528,373. Rotary engines. SORGE, O. May 5. 1939, No. 13464. Convention date, May 5, 1938. [Class 110 (ii)]. Fixed abutment type with outwardly sliding vanes. - The separate opposite vanes a, a' have each a counterweight b, b<1> and each is connected to its counterweight by rods c which pass through and guide the counterweight of the other.
Patent GB-693795-A (GB)
Title: Improvements in or relating to detonator shields
Inventor: LOWE ARTHUR JAMES
IPC: F42B3/26
Filed: 1951-06-08
Abstract: 693,795. Blasting detonators. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 11, 1952 [June 8, 1951], No. 13613/51. Class 9(i) A shield 1 to position an electric detonator in an explosive charge and to protect it from accidental initiation has an upper body portion 2 and a lower threaded portion 3 of reduced diameter. Formed in the shield is a through passage 4 for a detonator and extending from the passage 4 across the concave top 6 of the shield is a slot 5 continued diagonally across the shield to the lower end of the passage 4. The upper part of the slot is sufficiently wide and deep to accommodate two insulated leading wires, while the lower part of the slot will hold from leading wires without any of the wires projecting beyond the contour of the shield. The shield is screwed into a recessed portion 8 of a primer canister provided with a detonator-receiving tube 9. The opposite end of the canister has an externally threaded projection 10 adapted to engage a recessed threaded portion 11 of a canister 12 containing blasting explosive. Several canisters 12 may be screwed together to form a column of explosive. With larger charges the shield may be screwed into an adapter similar to the recessed part 8, a detonator tube being screwed into the adapter. To use the shield an electric detonator is passed upwards through the hole 4 taking part of the lead wires with it. The wires are then pressed into the slot 5 and their free ends brought upwards along the diagonal part of the slot while the detonator is inserted in the tube 9 and the shield is screwed into the recess 8. The shield is preferably of non-metallic and non-electrically conducting material, e.g. wood, hard rubber or synthetic resins.
Patent GB-250050-A (GB)
Title: Improvements in and relating to drinking vessels for animals
IPC: A01K39/02
Filed: 1925-05-25
Abstract: 250,050. Maskell, F. T. May 25, 1925. Drinking - appliances for animals.- A drinking-vessel for animals, of the kind with a depending or re-entrant part 2, is made also with a second aperture 5, by means of which the vessel may be cleaned. The aperture is normally closed by a stopper &c. The top of the vessel may be detachable ; if the vessel is of sheet metal, the top may resemble a lever lid.
Patent GB-148671-A (GB)
Title: Improvements in and relating to torpedo guards
IPC: B63G9/00
Filed: 1919-05-29
Abstract: 148,671. Rinaldi, G. May 29, 1919. Torpedo screens. - A torpedo guard for ships comprises a piece 3 having an axial point and radial spikes 5 with intervening globular portions 7. The pieces have enlarged bases 8 and threaded shanks which screw into recesses tapped in the hull. The pieces are disposed in longitudinal rows adjacent to the waterline of the ship, and this protection is stated to cause the explosion of the torpedo exteriorly of the hull. When not required, the pieces can be removed and the sockets in the hull closed by screw plugs.
Patent GB-707749-A (GB)
Title: Improvements in or relating to electrical control devices
Inventor: REID KENNETH ERIC
IPC: B60J7/057
Filed: 1951-06-08
Abstract: 707,749. Controllers. SMITHS JACKING SYSTEMS, Ltd. May 16, 1952 [June 8, 1951], No. 13647/51. Class 38(3) [Also in Groups XXIX and XXXV] An electrical control system for the control of hydraulic circuits comprising a pump 20 operated by a direct current electric motor wherein a solenoid winding 24 operating an electric switch which controls the motor is connected in series with a pair of solenoid windings 26, 27 which are connected in parallel and which operate valves controlling the supply of fluid from a common source of pressure to means for operating a device-such as a motor car hood-in opposite directions, has a pair of switches 34, 35 provided for selectively connecting either of the valve operating windings together with the solenoid winding which operates the motor control switch to a source 10 of electrical energy.
Patent GB-514520-A (GB)
Title: Improvements in or relating to alternating current signalling systems
IPC: H04Q1/446
Filed: 1938-05-07
Abstract: 514,520. Automatic exchange systems. HADFIELD, B. M. May 7, 1938, No. 13664. [Class 40 (iv)] [Also in Group XL] In a system in which signals are sent in the form of impulses of alternating current which are translated into direct current impulses at the receiving end, the signals pass through a frequency multiplying circuit before translation. In the arrangement shown, which is particularly suitable for single or multi-channel voice frequency telegraph systems or for the reception of 750 cycle dialling impulses in.telephony, the signals pass through two frequency doublers in cascade, the first comprising a pair of valves V1 and the second a full-wave rectifier RD, to a transformer T3 tuned by a condenser C3 to the quadrupled frequency, and thence to a valve V2 which controls a rectifying arrangement of the kind described in Specification 505,500, [Group XL]. The direct current component derived from the rectifier RD is applied across a resistance R and by means of a condenser C and rectifier R1, R2 provides a negative bias which builds up quickly but decays slowly to render the valve V2 inoperative until the signals in the tuned circuit T3, C3, reach one-half the peak voltage. Since all incoming frequencies contribute to the biassing effect, the arrangement automatically prevents operation by speech containing a proportion of the signalling- frequency.
Patent GB-342223-A (GB)
Title: Improvements in electrical resistances
IPC: H01C1/148
Filed: 1930-05-05
Abstract: 342,223. Wire resistances. GILL, H, A., 51, Chancery Lane, London.-(Steatit-Magnesia Akt.-Ges. ; 18, Breite Strasse, Pankow, Berlin.) May 5, 1930, No. 13782. [Classes 37 and 38 (i).] Between a resistance wire b wound on an insulating core a and a cap f forming a terminal is disposed a metal casing c which may be slit or formed in two parts and is provided with an end wall d which prevents it from sliding over the wire when the cap f is placed in position. The wire is wound on the core and the casing c placed over its end. Varnish &c. may then be sprayed on to the wire to form a coating, or it may be covered with enamel or glaze. The caps f are then placed in position. When varnish is employed it may overlap the edge of the casing c and be forced back by the cap and trimmed off. When the core a is of synthetic resin pieces of metal may be moulded into it against which the wire is pressed by the casing c so as to ensure good contact.
Patent GB-271881-A (GB)
Title: Improvements in or relating to methods of producing volatile inorganic acids
IPC: C01B7/03
Filed: 1927-05-25
Abstract: 271,881. Frischer, H. May 27, 1926, [Convention date]. Acetic acid.-The Specification as open to inspection under Sect. 91 (3) (a) describes a process for the production of acetic acid bv decomposing an acetate with a strong acid such as sulphuric acid, wherein a quantity of the acid to be produced is added to the reacting mixture. The temperature required may be reduced by working under reduced pressure. This subject-matter does not appear in the Specification as accepted.
Patent GB-1009361-A (GB)
Title: Organic polymeric semiconductors
Inventor: SLOUGH WARWICK
IPC: C08F8/00
Filed: 1961-04-19
Abstract: Solid polymeric organic semi-conductors comprise a polymeric donor species containing multiple p  electron systems and an electron acceptor species.  Specified polymers are polystyrene, isotactic or atactic polyvinyl naphthalene, polyacenaphthylene, or polyvinyl mesitylene. As acceptors are specified silver perchlorate, hexafluorobenzene, trinitrobenzene, quinone, naphthoquinone, anthraquinone, quinones substituted with halogen groups and cyano groups, tetracyanoquinodimethane, tetrafluoroethylene, tetracyanoethylene, pyromellitic anhydride and maleic anhydride.  The compositions are made by mixing the ingredients in solution and flashing off the solvent.
Patent GB-928075-A (GB)
Title: Improvements in or relating to rotary internal combustion engines
IPC: F02B53/00
Filed: 1960-04-22
Abstract: 928,075. Rotary l.C. engines. N.S.U. MOTORENWERKE A.G. April 22, 1960 [April 23, 1959], No. 14177/60. Class 110 (2). In a rotary I.C. engine of the n and n+ 1 lobe type at least one of the casing end walls is provided with an inlet port 18 which is shaped as shown, is subdivided by a web 20 and cooperates with recesses 19 in the inner rotor.
Patent GB-254290-A (GB)
Title: Improvements in reversing prisms affording parallel vision
IPC: G02B5/04
Filed: 1926-06-07
Abstract: 254,290. Zeiss, C. [Firm of]. June 24, 1925, [Convention date]. Prisms.-In reversing prisms, affording parallel vision, five reflections take place in one and the same plane one reflection taking place at a roof surface. One of the reflecting surfaces c also acts as a ray traversing surface, and the roof surface a is arranged to constitute either the second, third or last reflecting surface. The complete prism is built up of two parts cemented together.
Patent GB-1219395-A (GB)
Title: Beaming process and apparatus
IPC: D02H3/00
Filed: 1969-03-18
Abstract: 1,219,395. Beaming machines. E. I. DU PONT DE NEMOURS & CO. 18 March, 1969 [19 March, 1968], No. 14292/69. Heading D1M. A beaming process for elastomeric yarns comprises unwinding one of a number of substantially identical yarn packages and measuring the elongation of the yarn at a number of places on the package, computing a programme from this information and superimposing this programme upon a beaming machine wherein the yarn packages are driven in proportion to the drive of the beam. In Figure 1 packages 13 are driven by peripheral contact with rollers 17 driven from a common motor 22 and a beam 31 is driven by a motor 33, a roller 32 measuring the peripheral speed of the beam and the signals therefrom being fed into a control unit to vary either the speed of the motor 22 or the motor 33. This does not produce a uniformly wound beam because of the uneven tension of the yarn throughout the length of the original packages. Accordingly, from the computed programme, a cam 48 is cut and this cam is driven from a roller 17, the cam controlling a potentiometer 40 whose output is superimposed upon one of the motor drives to produce the necessary uniform beam tension.
Patent GB-719828-A (GB)
Title: Improvements in push buttons for electric switches
IPC: H01H13/14
Filed: 1952-06-06
Abstract: 719,828. Hand actuating devices for switches. CRABTREE & CO., Ltd., J. A., and WINTLE, T. D. G. June 8, 1953 [June 6, 1952], No. 14293/52. Class 38(5) The push-button 1 of an electric switch is urged outwardly of a cup-shaped casing 2 by a spring 3 and has an offset plunger 4 of arcuate crosssection for actuating the contacts. Outward movement of the button is limited by a pin 7 and the casing 2 is secured in a plate 9 by a screwed ring 6.
Patent GB-372562-A (GB)
Title: Process for the manufacture of azo dyestuffs
Filed: 1931-05-14
Abstract: Monoazo dyes are made by diazotizing the sulphuric esters of b -sulphaminoanthrahydroquinones or their nuclear substitution products and coupling with components free from sulphonic or carboxylic groups.  The parent materials are obtained by esterifying b -aminoanthrahydroquinone or its nuclear substition products with chlorsulphonic acid; they can be diazotized without saponification of the sulphuric ester groups.  The products dye wool from an acid bath or cotton from an alkaline bath, the dyeings being developed by treating with acid oxidizing agents such as sodium nitrite in hydrochloric acid or sodium dichromate in dilute sulphuric acid. Textiles may also be printed with pastes containing the dyestuffs, sodium chlorate and ammonium thiocyanate, the prints being developed by steaming.  In examples, (1) the potassium salt of the sulphamic acid of 2-aminoanthrahydroquinone-9 : 10-disulphuric acid ester is diazotized and coupled with the o-anisidide of 2 : 3-oxynaphthoic acid; the product dyes in violet shades, changed to red on acid oxidation: a similar dyestuff is obtained from the sulphamic acid of 2-amino-3-bromanthrahydroquinone-9 : 10-disulphuric acid ester, and (2) the sulphamic acid of 2-aminoanthrahydroquinone-9 : 10-disulphuric acid ester is diazotized and coupled with (a) b -naphthol, to yield a product dyeing in brownish-red shades which change to orange on acid oxidation, or (b) 1-phenyl-3-methyl-5-pyrazolone, to give a product which dyes wool from an acid bath red shades, changing to reddish-yellow on acid oxidation.
Patent GB-259508-A (GB)
Title: Improvements in electric lamp holders
IPC: F21V23/00
Filed: 1926-06-08
Abstract: 259,508. Heath & Sons, Ltd., S., Tongue, A., and Mason, A.. E. June 8, 1926. Binding-posts.-In an electric-lamp holder. a spring 12 located between each terminal pin 5 and the corresponding contact pin 11 serves the three functions of binding a supply lead in a perforation 13 in the terminal, pressing the contact pin on to a contact of the bulb 15, and conducting current from the terminal to the contact pin. Holes 31, Fig. 4, in the spring allow it to be passed over the terminal pin, the edge of which is then expanded to retain the spring. The terminals are mounted on an insulating plate 3, and the contact pins 11 are located in holes in an insulating sheet 10 to retain the springs in position.
Patent GB-148030-A (GB)
Title: An improved machine for cutting oranges or other fruit or vegetables
IPC: A23N4/18
Filed: 1919-06-06
Abstract: 148,030. Maconochie, A. W. June 6, 1919 Cutting and slicing vegetables &c.-A machine for cutting oranges or other fruits or vegetables comprises vertically and horizontally reciprocating blades or saws to which the fruit &c. is fed by an horizontally reciprocating table. The table 6 is formed with angular recesses 30, each of which receives one fruit fed from a hopper or by hand. The vertical cutters 16 are spaced to correspond, and are mounted in a frame 17 which is reciprocated by means of an eccentric 18 on the main shaft 8. A single horizontal cutter 20 is carried bv slides 21 and reciprocated by a crank 24 and a slotted lever 23 pivoted at 34. A spring 27 and lever 28 assist the movement. Vertical slots 31 and a horizontal slot are formed in the table 6 to accommodate the blades when the table approaches the end of its stroke. The table is operated by an eccentric 7 and levers 9, 14.
Patent GB-501437-A (GB)
Title: Improvements in or relating to electron focussing systems
IPC: H01J29/52
Filed: 1937-05-24
Abstract: 501,437. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. (Radio Corporation of America) May 24,1937, No. 14442. [Class 39 (i)] A divergent electron beam in a hard cathode-ray tube starts from a convex, electron-emitting area of a cathode 15, Fig. 4, which may be an indirectly heated, convex plate or directly heated, and the beam is made nearly parallel, without any cross-over, by a first anode 27 separated from the cathode by a control electrode 23 which is biassed positively relatively to the cathode and receives the modulating voltages. The beam is subsequently converged to form a sharp spot on a fluorescent screen or other surface by means such as the field between the anode 27 and a second anode 13, Fig. 3. A cathode shield 17, Fig. 3 or 4, at cathode potential may be provided around or overlapping the cathode to reduce spherical aberration by making the surrounding field conical and may have a flange projecting towards the electrode 23. The screening electrode 31 and the cylindrical part of the electrode 23 shown in Fig. 3 may be omitted. The first anode 27 has diaphragms at or near one end and near its centre and may also have a third diaphragm 35. The second anode 13 is a conducting coating on the wall of the tube. Dimensional details are specified. The voltages on the electrodes 27, 13 may be in the ratio of 1 to 4 or 5.
Patent GB-277404-A (GB)
Title: Improvements in or relating to apparatus for cracking, catalysing, and hydrogenating carbonaceous materials
IPC: C10G1/06
Filed: 1926-06-08
Abstract: 277,404. Bianchi, A. E., and Guardabassi, G. June 8, 1926. Retorts.-In apparatus comprising a series of heated troughs with rotary agitators for the carbonaceous material passing therethrough, the troughs are provided with reticulated screens from which depend chains &c. capable of being vibrated by the agitators. The apparatus is particularly adapted for carrying out the process described in Specification 278,041. The material is supplied to the trough A, Fig. 2, by a hopper B and automatic rotary valve b'. A pair of shafts N, N<1>, Fig. 3, with inclined agitators P act on the material during its passage through the trough A to a smaller trough C located below it, the latter trough being provided with an agitator S. The treated material is discharged through an outlet E controlled by a rotary valve e<1>. A gas chamber F communicating with the trough A is provided with a reticulated screen t' from which hang a large number of small metal chains T of such length as to be vibrated by the agitators P. The chains T and other parts contacting with the vapours may be coated with a catalytic agent. or metallic oxide mixed with silicate jelly. The vapours given off from the material treated pass through the chain screen to twin longitudinal pipes H provided with filters and thence by means of pipes K<1> to a main offtake pipe.
Patent GB-647482-A (GB)
Title: Improvements relating to high frequency amplifiers
IPC: H03F1/36
Filed: 1947-06-02
Abstract: 647,482. Valve amplifying circuits. RADIO CORPORATION OF AMERICA. June 2, 1947, No. 14517. Convention date, May 31, 1946. [Class 40 (v)l In an I.F. amplifier in which the cathode is earthed, change of input impedance as the grid bias is varied for the purpose of gain control is minimized by feed-back produced by returning the grid and anode decoupling condensers, 5, 12, respectively, to earth over a common resistance 6. The screen of the valve is decoupled to earth over condenser 22. In an alternative arrangement, Fig. 2 (not shown), the resistance 6 is omitted and the join of condensers 5, 12 earthed directly, the desired compensatory feed-back being obtained by connection of a resistance, in series with a blocking condenser, across the outer terminals of the condensers 5, 12. Specification 415,009 is referred to.
Patent GB-1144766-A (GB)
Title: Xerographic development electrode apparatus
IPC: G03G15/08
Filed: 1966-04-01
Abstract: 1,144,766. Electro -photographic apparatus. RANK XEROX Ltd. April 1, 1966 [April 2, 1965], No. 14610/66. Heading G2H. In a xerographic copying machine having charging, exposure, developing, transfer and clearing stations a development electrode (23 Fig. 1 not shown) is provided to correct the electrical field in the centre of solid image areas to be developed and thereby produce developed images corresponding to the original being copied. The development electrode may comprise chains 72 Fig. 2 of conducting material attached to a rod 70 which rest on developer as it is cascaded from shoot 31. The electrode may be earthed or biased to a fixed potential.