baber/WOPTO huggingface dataset:
Patent GB-649689-A (GB)
Title: Improvements in or relating to inhalation apparatus
IPC: A61M16/06
Filed: 1948-10-12
Abstract: 649,689. Respiratory appliances. COLLISON, W. E. Oct. 12, 1948, No. 26583. [Class 81(ii)] In order to prevent exhaled air mixing with incoming gas or vapour inhalation apparatus comprises a valve in the conduit to the patient's nose which is automatically opened or closed by the varying pressure in a tube leading to the mouth. In one embodiment a mask is formed with two chambers 2, 4, fitting over the nose and mouth respectively. Gas entering by a tube 1 passes to the nosepiece through a chamber 3 containing a ball valve 5 and' having an orifice 6 communicating with the mouthpiece. When the patient breathes in, the reduction in pressure in the mouthpiece causes the ball 5 to move to the left and block the orifice 6 and outlet tube 7, leaving the inlet tube unobstructed. When the patient breathes out the ball moves 'back to the position shown in full lines, so blocking the inlet tube and leaving a free passage for exhalation through the tube 7, which may be fitted with a non-return valve 9. In a modification a segmental flap valve is used in place of the ball type. (see Fig. 4 (not shown)).
Patent GB-799802-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04L27/06
Filed: 1955-09-16
Abstract: 799,802. Transformers and inductors. GENERAL ELECTRIC CO., Ltd., READ, C. W. M., SHELMERDINE, R., and WILLIAMS, 1. D. Sept. 17, 1956 [Sept. 16, 1955], No. 26603/55. Class 38 (2). [Also in Groups XXXVI and XL (c)] In an I.F. transformer assembly for a radio receiver (see Group XXXVI) the secondary tuned circuit is balanced, the inductance comprising a pair of equal and symmetrical wavewound coils 21, 22 mounted on a fixed dust-iron core 39 which is held in place by pegs 40, 41 passing through the former 36. The primary tuned circuit includes a series-connected coupling coil 12 which is provided with a number of taps and is located between the secondary coils 21, 22. The arrangement is used in. a receiver in which beat-frequency oscillations are introduced without affecting the A.V.C. circuit (see Group XL (c)).
Patent GB-651773-A (GB)
Title: Improvements in or relating to electrical apparatus
Inventor: LOVEGROVE HENRY JOSEPH
IPC: H03F13/00
Filed: 1946-09-04
Abstract: 651,773. Current and voltage measurement. SANGAMO WESTON, Ltd. Sept. 4,1946, No. 26630. [Class 37] [Also in Groups XXXVIII and XXXIX] A direct current amplifier for currents and voltages to be measured comprises a relay in which a moving coil R controls the pressure between contacts RC and an arrangement giving negative feed-back. As shown, increase of current in R due to an increase in the voltage E to be measured increases the contact-pressure and the increased voltage drop across a resistor A common to both circuits due to the resulting increase in the output current balances the increased input voltage. A similar system, Fig. 2 (not shown), is adapted for current rather than voltage measurement. To minimize the effect of external vibration, the moving system is heavily damped, e.g. by oil, or is mounted in an evacuated vessel. Separate coils may be provided for the respective contacts.
Patent GB-731509-A (GB)
Title: Printed electric circuits
IPC: H05K3/12
Filed: 1953-09-29
Abstract: 731,509. Ohmic resistors. ERIE RESISTOR CORPORATION. Sept. 29, 1953 [Oct. 29, 1952], No. 26702/53. Class 37. [Also in Group V] A " printed " circuit is made from a resistance material, which may be a carbon - carrying paint, e.g. a paint comprising carbon black, a varnish binder, a filler and a solvent, by moulding the material on an insulating base (see Group V) and hardening it. Fig. 1 shows such a circuit, comprising an insulating base 2 having moulded thereon three resistors 1 carrying leads 3 joined to terminals 4.
Patent GB-650948-A (GB)
Title: Improvements in or relating to the production of moistureproof sheet or film wrapping material
IPC: C08J7/052
Filed: 1947-10-03
Abstract: Melamine-formaldehyde resins are modified by reaction during or after formation of the resin with a multi-substituted aliphatic hydrocarbon whereof one of the substituent groups is capable of condensing with methylol melamine and the remaining group or groups are such as would confer a dipole moment of more than 1.0 Debye unit upon the compound that would be obtained by substituting a hydrogen atom for the condensible substituent group.  The moment-conferring group may be the nitro-, cyano-, halogen-, aryloxy-, carbonyl-, furoyl-, amido-, or amino-group. Specified multi-substituted hydrocarbons are hydroxypropionitrile, 2 - nitro - 2 - methyl - 1,3 - propanediol, and cyanacetamide.  In examples: (1) a mixture of melamine, formalin, aqueous ammonia, and sodium hydroxide solution is refluxed for ten minutes, hydroxypropionitrile is added, and the mixture refluxed for another fifteen minutes, the pH value of the mixture being 7 during the reaction; (2) a melamine-formaldehyde resin is reacted with hydroxypropionitrile.  The resin solution obtained in each case is mixed with glycollic acid, glycerol, and water, applied to gel regenerated cellulose film, and heated to cure the resin.  Cellulose derivative compositions for coating hydrophilic films comprise an organic solvent solution of a melamine-formaldehyde resin modified by the process described above, or an organic solvent solution of a partly-condensed resin or the ingredients thereof together with a resin-modifying compound as indicated above, containing a cellulose derivative such as nitrocellulose.  An example of such a solution contains nitrocellulose, trimethylolmelamine, 2-nitro-2-methyl-1,3-propanediol, maleic acid, ethyl alcohol, and acetone; another example contains nitrocellulose, a melamine-formaldehyde resin modified with cyanacetamide, maleic acid, and ethyl acetate.  The coating is heated to 100 DEG  or 110 DEG  C. for 10 seconds to harden the resin.  Specifications 590,698, [Group VIII], 622,481 and 626,536, [Group VIII], are referred to.
Patent GB-274683-A (GB)
Title: Improvements in optical systems
IPC: G02B27/12
Filed: 1926-10-26
Abstract: 274,683. Cox, H. N. Oct. 26, 1926. Three-colour and like systems.-Comprises an optical system for the production of multiple images for colour photography, each of the images being formed by a separate objective. The separate objective lenses 10 are placed behind a positive auxiliary lens 12 having a focal length equal to its distance from the object 20. In order to provide for varying distances of the object from the camera the auxiliary lens 12 may be replaced by a compound lens 17, 18, 19 comprising several elements mounted in sleeves 25, 26 so that the distances between them may be varied to alter the focal length of the compound lens to equal the distance of the object. The rays incident on the lenses 10 are thus always parallel rays ensuring a fixed position of the images 21. In a modification the auxiliary lens consists of a single positive lens combined with a single negative lens. Appropriate colour filters 27 may be fitted at the back of each of the objectives 10.
Patent GB-978582-A (GB)
Title: Draughting unit
Inventor: BLAKE LESLIE REGINALD
IPC: B43L13/00
Filed: 1962-07-12
Abstract: 978, 582. Drawing apparatus. L. R. BLAKE. July 10, 1963 [July 12, 1962], No. 26764/62. Heading G1X. A draughting unit has a base 3 on which is mounted a rotating table 1 with a graduated scale around its periphery to indicate its angular position with respect to a mark on the base, and a scaled straight-edge b attached to a slide unit 5 which permits the straight-edge to move to different parallel positions along the table and to be lifted off the table during this movement, and which by means of a lever 7 on the unit 5 permits the straight edge to be'precisely located and to be moved by precisely fixed intervals. The rotation of the table 1 is controlled by a lever 2 which has three positions enabling the table to be rotated freely, or to be rotated so that at certain locations a roller presses in indentations in the periphery of the table or of a concentric disc, or to be locked at any desired position. The table may be overlaid with graduated markings, and a number of replaceable tables with different markings may be provided. The unit 5 slides and is pivotable on a bar 4, and downward pressure on the lever 7 moves the unit 5 in the direction of the arrow A by a distance which can be adjusted to rotating a scaled disc 8. A further disc 9 has the function that if it is rotated anti-clockwise the unit 5 cannot be moved unless pressure is put on the disc 9. If it is rotated clockwise the unit 5 is free to slide on the bar 4. The straight-edge 6 is in the form of a rule with markings on both sides, and the rule is held in sliding relationship with a support 11 to enable a scale with the desired markings to be used. Recesses 10 for drawing aids are provided, and a permanent magnet may also be provided as a support for razor blades.
Patent GB-1277380-A (GB)
Title: Shuttleless loom for two superimposed fabrics
IPC: D03D39/16
Filed: 1970-06-03
Abstract: 1277380 Double plush looms LINDOUER DORNIER GmbH 3 June 1970 [30 July 1969] 26833/70 Heading D1E A loom for weaving two superposed fabrics, has two weft inserting gripper needles 10, 20 on opposite sides of the loom and driven in opposite directions for inserting weft in the upper and lower sheds respectively. The needles 10, 20 are reciprocated by pinions 7 and guided by rollers 8, 9 and the grippers 11, 21 comprise spring loaded pivotable jaw elements 16, 26 which are lowered and released to release an inserted weft end and grip a newly presented end, by fingers 13, 15 and 23, 25. The grippers 11, 21 rest on guides 14, 24 when they are open during weft presentation, which guides may be pivotable away from the grippers (Fig. 5, not shown). The pinions 7 are driven through gear trains (5) Fig. 1 (not shown) by a common shaft (4) connected through a belt (3) to a motor (2).
Patent GB-687603-A (GB)
Title: Improvements in the driving and pulling of piles, pile-planks, tubing and the like
IPC: E02D11/00
Filed: 1950-11-03
Abstract: 687,603. Piles. DESVAUX, J., and BERTHET, F. Nov. 3, 1950 [Nov. 4, 1949], No. 26944/50. Class 68(ii) Comprises several arrangements for driving or withdrawing piles by imparting thereto, in addition to a succession of impulses along the axis of the pile, a series of alternating impulses in a direction perpendicular to the axis from a source unitary with the pile. Fig. 1, for exampde, shows two horizontal flywheels 11, 12, having eccentric weights 13, 14 and rotated in the same direction thereby imparting oscillations G<SP>1</SP>, G<SP>2</SP> at right angles to the axis of the pile 1. Fig. 2, shows such flywheels combined with eccentrically weighted vertical flywheels 3, 4 which impart vertical oscillations F<SP>1</SP>, F<SP>2</SP>, combinations and developments of these arrangements are described with reference to other Figures.
Patent GB-271326-A (GB)
Title: Electromagnetic sound reproducer or loud speaker
IPC: H04R9/06
Filed: 1926-10-28
Abstract: 271,326. Brandes Laboratories, Inc., (Assignees of Brigham, C. A.). Sept. 13, 1926, [Convention date]. Loud-speakers; magnetic instruments; diaphragms.-A loud-speaker comprises an electromagnetic operating system including a plurality of pole-pieces directed towards each other and separated by a gap, a pair of flat conductive members positioned over the pole-pieces to form substantially parallel walls, a flat coil member resiliently suspended between these parallel walls and a sound reproducing diaphragm mechanically connected with the coil member which is energized bv the speech currents for setting up mechanical vibrations in a direction substantially normal to the direction of the polepieces. Other features of the-invention reside in a particular construction of the flat. coil member and in the means for resiliently mounting the coil in the magnetic gap. In the construction of loud - speaker shown, the electromagnetic operating mechanism is formed as a frame structure suspended by brackets 3 from the top 1 of a cabinet. This frame structure is made up of plates 4, 5 clamped by bolts 9, 10 on opposite sides of the laminated magnetic core structure 11 with spacer members 6 in between. Windings 16, 17 surround the core members 11, the pole pieces 14, 15 of which are clamped by strips 18. 19 and bolts 18<a>, 19<a>, Fig. 2. The flat coil support 12 carrying flat coils 22 23 on opposite sides thereof is flexibly supported in the narrow gap between the pole pieces 14, 15 by means of spider members 8, Fig. 11, the arms 8<c>, 8<d> of which are suspended from plates 7 secured in recesses or cut away portions 4<a>, 5<a> in the plates 4, 5. Aluminium members 25<a>, 25b, 25<c> and 25<e> on the arms 8<a>, 8b of the spiders 8 are secured over studs 12<a>, 12<b>, 12<c> and 12<e> of the coil support 12, whilst an aluminium member 25d secured over the stud 12d of the support is connected by a rod 26, passing through a hole 8<e> in the front spider, to the apex 27 of the diaphragm 28. The coils 22, 23, which are formed from aluminium wire, are secured to each other at 24 beyond the limits of the support 12, the signalling current passing through the two coils in parallel. The windings 16, 17 are conneeted in series so that opposite poles are directed towards each other. In order to change the reactance of the driving coils at the higher frequencies the pole pieces 14, 15 are encased in conductive cap members 20, 21. The conical diaphragm 28 has an elliptical outline and is supported by a flexible suspension 29 in an aperture 31 in a plate 32 supported by brackets 33 from the electromagnetic frame structure.
Patent GB-1542697-A (GB)
Title: Liquid detergent composition
IPC: C11D3/43
Filed: 1976-06-29
Abstract: Clear, single-phase, heavy-duty liquid detergent compositions are formulated using alkaline earth cations to replace a substantial portion of the alkanolamines commonly used in such compositions, thereby avoiding precipitation of bis(styrylsulfonate)biphenyl brightener.
Patent GB-987380-A (GB)
Title: Improvements in or relating to electron beam furnaces
IPC: H01J37/305
Filed: 1963-07-09
Abstract: 987,380. Automatic position control. STAUFFER CHEMICAL CO. July 9, 1963 [July 9, 1962], No. 27055/63. Heading G3R. [Also in Division H1] A circuit for automatically keeping constant the path of the beam in an electron beam melting furnace includes a variable transformer 56, a transformer 58 and a rectifier 32 for supplying a direct current to the electromagnet 16 directing the beam path, the direct current varying with the beam voltage. The changes in beam voltage are due to changes in the impedance of the beam path due to ions produced in the path of the beam. The electron gun 14 is energized by a constant current network 42 via step-up transformer 48 and rectifier 50, variable transformer 24 supplying the cathode filament current.
Patent GB-827031-A (GB)
Title: Improvements relating to tape transport
Inventor: GROOM ROBERT GEORGE
IPC: G11B15/60
Filed: 1957-08-29
Abstract: 827,031. Feeding webs. BURROUGHS CORPORATION. Aug. 29, 1957, No. 27191/57. Class 100(1) A tape transport apparatus comprises means for supporting plurality of tapes along a set of paths such that the tapes lie in parallel side-by-side relationship, a duct extending transversely to the paths so as to contact tapes therealong, the duct having openings adjacent each tape path whereby reduction of pressure in the duct causes friction between the tapes and duct, means for selectively pulling one of the tapes along its path across the duct, and at least one transducer disposed between the duct and pulling means for detecting and/or recording information on the tape with which the pulling means is selectively associated. A shown, magnetic tape 18 is fed by feed rollers 26 or 28, driven in opposite directions past transducers 40, 42. The tape is tensioned by passage past suction ducts 64, 66 having openings 68, 70. The rollers 26 and 28 are rendered operative to feed the tape by actuation of cooperating pressure rollers 44 and 46 into engagement with the tape. The rollers 44, 46 are carried by levers actuated by a solenoid 54 having two coils which are energized selectively to determine the direction of tape feed. The position of an electric switch, not shown in circuit with the coils determines which coil is energized; this switch may be actuated by a relay not shown, operated by closure of a pressure responsive switch in one of the ducts 66, 68. The pressure responsive switch is actuated upon a sudden increase in pressure in one of the ducts due to a slot in the end of the tape passing over the ducts, thereby reversing the direction of the tape feed. Several tapes may be arranged side, by side along the feed rollers 26, 28, a particular tape being selected for feeding by movement axially of a carriage 30 supporting the rollers 44, 46 and transducers 40, 42 along a support 32 into alignment with the selected tape. Specifications 825,587 [Group XXXVIII] and 825,588 [Group XIX] are referred to.
Patent GB-254578-A (GB)
Title: Process for the production of new insoluble azodyestuffs in substance or on the fibre
IPC: C09B29/20
Filed: 1925-10-29
Abstract: 254,578. Carpmael, W., (Farbenfabriken vorm. F. Bayer & Co.). Oct. 29, 1925. Azo dyes.-The diazo compounds of as-m-xylidine and its substitution products are coupled with 2: 3-oxynaphthoyl-as-m-xylidines, either in substance to form pigment dyes, or on the fibre to yield fast red shades. The following components are specified :-as-m-xylidine, 6-nitro- or 6-chlor- 4-amino-1 : 3-dimetbylbenzene, 2 : 3 - oxynaphthoyl-m-xylidine, 2 : 3-oxynaphthoyl-1<1> : 3<1>-dimethyl-6<1>-nitro-4<1>-aminobenezene. Specifications 6379/12 and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to.
Patent GB-328895-A (GB)
Title: Improvements in mixing drums for concrete and similar purposes
IPC: B28C5/20
Filed: 1929-09-07
Abstract: 328,895. Fowler, C. H., and Hobson, G. Sept. 7, 1929. Rotary mixers.-A rotating drum for a concrete mixer comprises a sheet-metal annulus A made in one or more parts, and ends B, B<1> of cast metal. The mixing blades G are slightly offset from the central plane of the drum and deflector blades K are provided so that the material is confined to the central part of the drum. The blades G, K are spaced slightly from the drum wall.
Patent GB-1476197-A (GB)
Title: Animated toy
IPC: A63H3/18
Filed: 1974-06-19
Abstract: 1476197 Toy figures S KURAMOCHI 19 June 1974 [23 Aug 1973] 27292/74 Heading A6S A toy figure simulating a monkey, &c comprises a fixed frame 12 on a base 2, supporting a frame 13 and trunk 14 movable up-anddown, with controls 154a, &c operated to cause the figure's arms 37 to swing in-and-out, its head 17 to nod back-and-forth, its eyes 22 to protrude and retract, its ears 25 to flap, its lips to move, and a sounder 106 to operate. An electric motor 135 drives through gearing 136 to a shaft 137 fast with a crank 138, which reciprocates the frame 13 relatively to the fixed frame 12, &c. The controls consist of press-buttons 154a, 154b, 154c each operated to raise a link in the stationary frame 12 so that an abutment is introduced into the path of a drive lever moving bodily up and down with the reciprocating frame 13. The respective lever is thus restrained, and pivots relatively to the movable frame 13. Each lever then operates its connected body part. The arms 37 pivot about pins 36. The eyes 22 are mounted in a frame 20 which pivots back and forth about a shaft 19. Lip actuating elements 28, 29 are opened and shut via links 32, 33 as the head frame 16 pivots. The sounder 106 includes a resilient strip engageable with a gearwheel of the drive mechanism. Actuation of a fourth press button 154d disconnects the reciprocatory drive to the movable frame 13, &c and instead causes the frame, &c to rock from side to side.
Patent GB-1049869-A (GB)
Title: Improvements in or relating to polyamides
IPC: C08K13/02
Filed: 1963-07-10
Abstract: A method for heat stabilizing a polyamide comprises adding to the polyamide or to the precursors thereof a stabilizer comprising a simple or complex salt of divalent iron, an alkali metal iodide and an alkli or alkaline earth phosphate or an organic phosphate having a boiling point above 200 DEG  C.  Specified polyamides are poly-e -caprolactam and polyhexamethylene adipamide.  Specified stabilizers are iron-II-diethanolamine sulphate, iron-II-naphthenate, ferrous sulphate, triphenyl phosphate, the condensation product of 2:2-bis(p-hydroxy phenyl)propane with phosphorous acid, sodium dihydrogen phosphate and potassium iodide.
Patent GB-654079-A (GB)
Title: Method of and device for processing wool textile materials, especially felts
IPC: D06M15/39
Filed: 1947-10-13
Abstract: 654,079. Agglutinated fibrous materials. ORR FELT & BLANKET CO. Oct. 13, 1947, No. 27415. Convention date, Feb. 3. [Class 140] [Also in Group XIII] An endless belt of synthetic resin. impregnated wool felt is dried and the resin cured, as soon as the felt has reached a predetermined degree of dryness, within a chamber 10 by stretching the belt 11 between a movably supported roller 13 and a rotatably mounted foraminous hollow roller 12 and moving the belt around the rollers, simultaneously subjecting the belt to hot circulating air, drawing a portion of this air transversely through limited successive portions of the belt and causing the air thus drawn through the belt to impinge upon the outside of successive portions of the belt. The air heating and circulating system comprises a heating chamber 16, equipped with heating units 25 consisting of gas burners, connected to a fresh air conduit, fitted with preheating apparatus, through which fresh air is drawn by blowers 18, 19, and discharged into ducts 22 having jets 24 through which the air enters the chamber 10. A blower 30 withdraws the hot air from the chamber 10 through that portion of the chamber formed in the drum between a wire mesh screen 63 and a solid cylinder 60 to a chamber 70 whence the air is discharged into a plenum chamber 31 which is provided with nozzles 32, 33 for directing streams of air upon the roller 12. The removal of air from the chamber 10 via a duct 34 may be assisted by a fan unit which is also operated to scavenge the chamber 10 of gases before the treatment of each belt and to rapidly cool the felt when the curing is completed ; the chamber 10 may be humidified to return the felt to its normal moisture content. The complete cycle of operation of the system may be controlled automatically by a system incorporating "air-actuated" electric units, Fig. 8 (not shown).
Patent GB-158653-A (GB)
Title: Improvements in and relating to vacuum cleaning systems
IPC: A47L5/38
Filed: 1919-11-07
Abstract: 158,653. Latham, H. R., and Houghton, R. J. Nov. 7, 1919. Disc-supported-blade fans; multi-stage centrifugal fans.-A centrifugal exhausting-fan apparatus for vacuum cleaning comprises a fan built up from cast-metal side plates, one of which has walls cast integrally therewith to form blades. The driving-motor is mounted on a pivoted soleplate adjusted angularly by a controlled spring to adjust the driving-belt tension. To prevent lubricant from being drawn into the fan by the suction, an inner portion of the bearing is cut away and connected by a port to the atmosphere. The fan comprises a series of units such as a twounit fan, each unit comprising a base-plate 8, Fig. 3, cast integrally with the blades, which are radial from the eye outwards except near the periphery where they are curved. The front plate 11 is bolted or riveted to the back plate. The inner portion 23 of the bearing has a groove 24 cut in and connected through a port to the atmosphere to prevent lubricant from being sucked into the fan. The driving-motor 2, Fig. 1, is mounted on a sole-plate 14 pivoted on the bed-plate 20 of the apparatus and controlled by an adjustable spring 17 to regulate the driving- belt tension.