baber/WOPTO huggingface dataset:
Patent GB-224138-A (GB)
Title: Improvements in or relating to sound-recording and sound-re-producing instruments
IPC: G11B3/46
Filed: 1923-05-31
Abstract: 224,138. Kay, F., Clifton, W. E., and Cliftophone, Ltd. May 31, 1923. Addition to 173,309. Tool arms and mountings.-Relates, to stylusbar mountings comprising two spring blades or sets of blades, arranged at right angles to one another and connected at opposite ends to the sound box casing and to the stylus bar, as described in the parent Specification. According to the present invention (a) one of the blades or sets is in or parallel to the plane of the diaphragm and the other is in a plane containing the stylus axis, and its central line, joining its held ends, is in the plane of the first blade or set and is transverse to the central line of the first blade or set, and (b) the blade or set which in the parent Specification is substantially in the plane of the diaphragm is in a plane parallel to the diaphragm but spaced therefrom. As shown, the stylus bar 3 is formed with a U- shaped yoke 2. Two blades 7 forming the first set extend in opposite directions from the limbs of the yoke to end pieces 8 of a bridge piece 9 connected to the sound box. The blades 7 are in, or parallel to, the plane of the diaphragm. The second blade 6 is connected to the bottom of the yoke 2 and to the bridge piece 9 and is in the plane of the stylus axis.
Patent GB-815345-A (GB)
Title: Chairs, settees and the like
Inventor: BRANNAN WILLIAM
IPC: A47C5/06
Filed: 1957-02-14
Abstract: 815,345. Chairs. PEL Ltd. Feb. 5, 1958 [Feb. 14, 1957], No. 5053/57. Class 52(2) A tubular metal chair has upstanding tubular members 5 with spaced holes 6 in their inner sides and between these members is mounted a back rest 7 with sides formed to channel section to embrace members 5 and having projections 8 secured by screws 9 to engage holes 6 the members 5 being sprung aside to allow engagement of the parts. In a modification members 5 are joined at their upper ends by an integral cross member and the projections in one channel are formed by spring-loaded plungers 11.
Patent GB-557415-A (GB)
Title: Manufacture of azo pigments
IPC: C09B67/22
Filed: 1942-04-17
Abstract: 557,415. Dyes. FAIRBAIRN, R. E., NEAL, R. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 17, 1942, No. 5105. [Class 2 (iii)] Azo dye pigments are obtained by coupling diazotized 3-nitro-4-aminotoluene with acetoacetanilide and immediately mixing the precipitated product in aqueous suspension with the pigment 3-nitro-4-aminoanisole # acetoacetanilide, molecular proportion of the 3-nitro-4- aminoanisole constituting from 5 to 70 per cent., and preferably 17.5 per cent. of the diazo components used. The said dyestuff may be added to or formed in the coupling medium before, during or immediately after the coupling operation. The products are reddish yellow pigments, redder in shade than the pigment, 3-nitro-4-aminotoluene # acetoacetanilide, and of greater tinctorial strength than the product obtainable by mechanical admixture of the two pigments. In examples, (1) a solution of diazotized 3-nitro-4-aminotoluene (128 parts) is mixed with a solution of diazotized 3-nitro- 4-aminoanisole (30 parts), the mixture is stirred into a suspension of acetoacetanilide in an aqueous solution of sodium acetate and the precipitate is filtered off, washed and dried ; (2) and (3) solutions of diazotized 3-nitro-4- aminotoluene (128 parts) and diazotized 3-nitro- 4-aminoanisole (30 parts) are stirred successively (2) in that order, (3) in the reverse order, into a similar suspension of acetoacetanilide and the precipitate filtered off, washed and dried ; (4) a solution of a diazotized mixture of 3- nitro-4-aminotoluene (128 parts) and 3-nitro-4- aminoanisole (30 parts) is stirred into a suspension of acetoacetanilide in an aqueous solution of sodium acetate and the precipitate is filtered off, washed and dried ; (5) a solution of diazotized 3-nitro-4-aminotoluene (144.4 parts) is mixed with a solution of diazotized 3-nitro-4- aminoanisole (8.4 parts), the mixture is stirred into a suspension of acetoacetanilide in an aqueous solution of sodium acetate and the precipitate is filtered off, washed and dried ; (6) a solution of diazotized 3-nitro-4-aminotoluene (76 parts) is mixed with a solution of diazotized 3-nitro-4-aminoanisole (84 parts), the mixture is stirred into a suspension of acetoacetanilide in an aqueous solution of sodium acetate and the precipitate is filtered off, washed and dried. Specification 517,456 is referred to.
Patent GB-566950-A (GB)
Title: Improvements in and relating to methods of manufacturing electrical resistances
IPC: H01C17/04
Filed: 1943-03-31
Abstract: 566,950. Wire resistances. BAYLISS, H. E. March 31, 1943, No. 5124. [Class 37] A flexible former is mounted on a supporting mandrel, resistance wire is wound tightly on the former, and the wound resistance is rendered self-supporting by applying, during or after winding and prior to removal of the former from the mandrel, a fixative which secures the wire to the former and also'stiffens the former. A strip of impregnated paper 13, Fig. 1, is temporarily secured at one end to a mandrel 10 by a piece of adhesive paper 14 and is wound spirally round the mandrel with its edges over-lapping, the other end then being secured temporarily by another piece of adhesive paper 14. A connecting tail 16, Fig. 2, is formed by winding a comparatively thick wire about the former and leaving the twisted ends outstanding. One end of the resistance wire 17 is secured to the tail and the wire is wound on the former, the other end being secured to a second connecting tail 18. An insulating fixative such as celluloid dope is then applied. The former is removed from the mandrel and passed between rollers so as to flatten it into the form of a strip, which may be wound on a bobbin with interleaving insulating strips or may be sandwiched between two layers of strip insulating material and folded backwards and forwards on itself to form a resistance of small bulk. Cooling fins may be provided between the folds. The finished resistance may be impregnated with a water, heat, or fireproof material and may also be sealed in a container which is evacuated or filled with an inert gas. Tappings may be formed by providing tails at appropriate points during winding or by the application of connecting tabs to the flattened strip. Instead of being wound in a single layer, the resistance wire may be wound in multi-layer or pile form. The former may be of other than cylindrical form. According to the Provisional Specification, adjacent turns of the resistance wire may be touching or spaced regularly or irregularly, or with an increasing or decreasing spacing. Adjacent turns may be separated with an intermediate winding. Where adjacent turns of the resistance wire are spaced, the fixative may contain small particles of material to act as spacers between adjacent turns. Tappings may be made from metal bands which, when flattened, are soldered in slots formed in a back extension of the contacts of a contact switch. Specmcation 566,971 is referred to.
Patent GB-291141-A (GB)
Title: Improvements in racquets used in tennis, badminton and such-like games
IPC: A63B51/12
Filed: 1927-02-23
Abstract: 291,141. Hamilton, A. M. Feb. 23, 1927. Rackets.-In a racket in which longitudinal strings are tensioned by a member extending through the length of the handle, the tensioning member is gripped at the handle end by a holding device or mechanically adjustable tensioning device, and a connecting member is provided between the tensioning member and the tensioned strings. The tensioning member is formed of a resilient material such as gut that imparts to the tensioned strings a resilience comparable with that of a gut-string racket. As shown in Fig. 1, the longitudinal strings of a racket are attached to a yoke a' and are tensioned by a cord of gut g<1> extending through the handle to an anchoring means f<1>. The cord g<1> is secured to the yoke by a riveted clamping-plate k, and is enlarged at its other end for engagement by an anchor-member disposed within a recess in the handle. The anchor-member may be fixed or may take the form of a socket a<2>, Fig. 6, adapted to be drawn outwardly along the handle by a screw e. In a modification, Fig. 12, the cord is secured at each end by insertion into an internally-screwed socket s where it is wedged by a screw s<2>. In a further modification, the yoke may be replaced by a flexible steel wedgepiece covered on the handle side with leather to protect the strings. The Provisional Specification describes a construction in which the longitudinal strings are secured to two members each pivoted centrally to one end of a yoke. In a modified construction in which the yoke is dispensed with, the longitudinal strings pass over guiding pulleys disposed in the wedge-piece and extend through the handle to a tensioning device.
Patent GB-142430-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/20
Filed: 1919-02-20
Abstract: 142,430. Crabtree, J. A. Feb. 20, 1919. Switches, quick-action, of the kind having a pivoted operating member and a pivoted contact-carrying member, both adapted to oscillate about the same pivot, and a spring operating through a toggle of which the operating member forms one element and the other element is a floating lever, both axes of which, in the switching movement, move in arcs of circles, the mean points of which are nearer to the back of the switch base than is the pivot of the operating member. The invention consists in so arranging and shaping the parts of a switch of this kind that, when the switch is closed, the movable contact and the outer end of the operating lever lie on opposite sides of a plane containing the axis of movement of the operating member, and, in the opening movement of the switch, the outer end of the operating lever passes through the plane referred to. In the tumbler switch construction shown in Fig. 1, the operating member 1 and the contact member 3 are co-axially carried in a pivot in the bridge 2. At a position below this fixed pivot, the tumbler-operating member is pivoted to one end of the spring element which is of the telescopic spring-plunger type, the other end being pivoted at 6 to the contact-carrying member 3. In action, the toggle is carried across the dead-centre position and the spring element produces the quick action. An initial positive movement is obtained bv the engagement of part of the spring element with an abutment 4 on the lower part of the bridge, which serves as a temporary pivot. In the construction shown, the part of the spring member which engages with the bridge is in the form of a U-member 5 trunnioned in the contact-carrying member and provided with a sleeve in which the pin 8 works. The sleeve may be omitted and the pin pass through a slot in the base of the U-member. The shape of the contact-carrying member is shown in Fig. 3; it is slotted to receive the trunnions of the spring member which are retained in place by the pressure of the spring. The movement of the contact-carrying member is limited by its engagement with the lower edge of the brdge as described in Specification 140,179 and the movable contact may be shaped and mounted as described in Specification 142,224.
Patent GB-662784-A (GB)
Title: Electric multi-switch
IPC: H01H67/26
Filed: 1949-02-25
Abstract: 662,784. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd. Feb. 25, 1949 [May 18, 1948], No. 5150/49. Class 40 (iv). A device for closing a crosspoint in a cross-bar switch comprises a finger for each cross-point actuated only when a member controlled by a vertical selecting device is placed between the finger and an actuating member controlled by a horizontal selecting device. Vertical conductors 7 and flexible horizontal conductors 6 are arranged in a lattice as described in Specification 658,395, [Group XXXVII], the conductors 6 being threaded through insulating fingers 10, which are undercut at 17, Fig. 4, so that movement of the related bar 15 at the operation of horizontal magnets 20 has no effect. Energization of one of a number of vertical magnets 26, arranged in pairs across the switch, rocks a shaft 24 one way or the other to interpose a U-shaped spring 25 between the fingers 10 in one column and the related bars 15. Subsequent energization of one of the horizontal magnets 20 operates the related bar 15 and the selected finger 10<SP>1</SP> to close the cross-point, which remains closed as long as the horizontal magnet is energized. Reference is also made to Specification 644,553, [Group XXXVII].
Patent GB-771879-A (GB)
Title: Improvements in and relating to apparatus for pouring molten metal
Inventor: COLLINS ROBERT DORRELL
IPC: B22D41/50
Filed: 1952-02-27
Abstract: 771,879. Foundry ladles. BRITISH IRON & STEEL RESEARCH ASSOCIATION. March 16, 1953 Feb. 27, 1952], No. 5150/52.. Class 82(1) [Also in Group XXIX] A container for pouring molten metal is provided with a nozzle designed to reduce swirling of the metal which .nozzle, as shown secured in the container bottom, consists of a refractory body with a stem portion 5 with a central longitudinal bore 7 and a pair of radial supply channels formed by a groove 9 in a cylindrical top portion 6, each channel having. a length at least equal to, and preferably twice, the diameter of the bore 7, a width approximately canal to that diameter and a depth at least equal to that diameter. Alternative forms of nozzle, in which the top of the groove 9 is wholly or partly closed, are described and illustrated in the Specification.
Patent GB-138725-A (GB)
Title: Improvements in or connected with inclinometers for aerial machines, vessels, and apparatus
IPC: G01C9/10
Filed: 1919-03-03
Abstract: 138,725. Hines, W. P. March 3, 1919. Clinometers for aircraft have a closed evacuated tube a of circular cross-section within which rolls a ball b of vulcanite. The tube has graduations d, e and also a distinctive mark f to indicate inversion of the aircraft. An electric lamp is fitted in front of, or behind, the tube.
Patent GB-1153361-A (GB)
Title: Improvements in the Support of Rotatable Devices.
Inventor: SELWAY LIONEL HENRY
IPC: A47K10/38
Filed: 1966-02-07
Abstract: 1,153,361. Radiator shutters. H.B.R. METAL INDUSTRIES Ltd. 3 Feb., 1967 [7 Feb., 1966], No. 5257/66. Heading F4S. [Also in Division E2] A support for a rotatable device comprises a frame 15 in which an element 1 is rotatably supported by a bush 3 for each end of the element, each bush being rotatably carried by the frame, one of the bushes having a slot 6 of partially circular cross-section the wall of which subtends an angle greater than 180 degrees and adapted for the reception of a bush engaging member 2 of the element, the relative dimensions of the bush engaging member and the mouth of the slot being such that the bush engaging member can be located in the slot by snap action resulting from pressure on the bush engaging member or the element exerted in a radial direction relative to the axis of the slot. In the construction shown each bush includes a disc like portion from one face of which a projection 5 extends, the projection defining the slot 6; from the other face of the disc like portion a pin 13 protrudes, this pin providing the means by which bush 3 is rotatably mounted in a bush in the frame 15. As described the element is one of the vanes of a vehicle radiator shutter, and the projection 5 of each fastening device includes two portions 8 which engage the vane to ensure movement of the vane with the bush. The bush one end of the vane is also provided with a pivot pin 14 and in the shutter the pivot pins 14 of all of the vanes engage an operating slide 18 which is biased to an upper position by a spring the arrangement ensuring that movement of the slide moves all the vanes. Movement of the slide is achieved by a thermostat 22 through a thrust transmitting plunger 23 and a thrust arm 24. The thermostat is in turn controlled by the engine cooling water which enters the thermostat through an inlet 25 and returns to the cooling system at 26. Each vane is provided with a sealing strip 11 so that in closed position it will seal against the adjacent vane.
Patent GB-525105-A (GB)
Title: Improvements in or relating to distillation processes
IPC: C10G7/00
Filed: 1939-02-17
Abstract: 525,105. Distilling oils. LUMMUS CO. Feb. 17, 1939, No. 5338. Convention date, Feb. 28, 1938. [Class 32] In topping oils, e.g. to obtain gasoline in a topping unit 10, incondensible gas is reduced to negligible proportions by partially condensing vapours and gases passing off through line 12 in a cooler 15 and separating in a separator 18 the condensate which is in part recycled as reflux through line 21 to the tower 10, the remainder being fed through line 21a to mix in line 27 with the residual vapours and gases fed through line 24, and the mixture being subjected to further cooling in a cooler 26 so that the greater part of the gases are absorbed in the condensate which is removed through line 32. The column 26 is cooled by passing water from line 28 in countercurrent to the vapours, the water then passing through lines 29, 16, 17 as cooling agent for the condenser 15. The column 10 is operated under a pressure of 50 lb. per sq. inch and at 290‹F. while reflux from cooler 15 is returned to tower 10 at 140-150‹F.
Patent GB-266537-A (GB)
Title: Improvements in the application of trousers and tie presses to wardrobes and the like
IPC: A47G25/72
Filed: 1926-02-25
Abstract: 266,537. Everitt, J. Feb. 25, 1926. Garment racks.-A trouser or tie press a<2> is pivotally supported by clips f<2> upon a swinging rod or tube c<2> carried by the wardrobe &c. d. The free end of the press is supported, when the rod &c. c<2> is swung out and the press raised into horizontal position, upon a pull-out rod g. The clips f<2> allow the press to slide on the rod &c. c<2>. According to the Provisional Specification the press may be provided with longitudinally disposed strips to rest upon the pull-out rod g and the clips f<2> may engage reduced portions of tha rod &c. c<2>.
Patent GB-581415-A (GB)
Title: Improvements in and relating to manifolding assemblies
IPC: B41L1/16
Filed: 1944-03-24
Abstract: 581,415. Manifolding-appliances. WILLIAMS, W. P. (Standard Register Co.). March 24, 1944, No. 5510. [Class 16] In a manifolding assembly of superposed continuous record strips and a series of sets of transfer sheets interleaved therewith at spaced intervals all normally moving forward together, each set of transfer sheets is adapted to be temporarily arrested in the recording position while the record strips are advanced relatively thereto, and the assembly is provided with means for releasing the transfer sheets so as to allow of their movement out of the recording position preparatory to the advancement of a succeeding set of sheets into the recording position. As shown in Fig. 2, the assembly is secured together loosely by staples 7 near the leading edges of each set of transfer sheets 4 which at their near ends overlap the succeeding forms of the record strips 1. The staples 7 permit limited separation of the plies at the point of attachment. The transfer sheets have less tensile strength than the record strips so that when arrested at the writing position they tear away from the staples as the strips continue their forward movement. The arresting operation is effected by yielding stops engaging projecting ends 6 on reinforcing strips 5 secured to the trailing ends of the transfer sheets. The resistance of the stops is less than the tensile strength of the record strips so that when a succeeding set of transfer sheets arrive adjacent to the writing position, the connecting staples 7 thereof engage the strips 5 of the preceding set and force them past the stops. The used set of transfer sheets is now free to be fed out of the machine by the frictional engagement therewith of the record strips. If a pin-wheel feed is employed, the strips 5 may be arranged between two perforations in the record strips and so that the pin wheel engages the rear edges of the strips 5 to free the transfer sheets positively from the machine. The staples 7 need not pass through the transfer sheets but may engage notches in the leading edges.thereof to assist in holding them in alignment. The strips 5 relative to a set of transfer sheets may be secured together with a single projection 6' at each side and may be staggered as shown in Fig. 5. The assembled record strips and interleaved transfer sheets are preferably zig-zag folded into a supply pack with the ends 6 projecting at spaced levels. These ends may be bent over for storage, and are straightened out again as they pass over the end of the writing tablet and into the machine. Specification 581,416 is referred to.
Patent GB-415142-A (GB)
Title: Improvements in or relating to electrical oscillation generators
IPC: H03B7/04
Filed: 1933-02-23
Abstract: 415,142. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and RUST, N. M., 109, London Road, Chelmsford. Feb. 23, 1933, No. 5587. Addition to 400,995. [Class 40 (v).] The output amplitude of a dynatron oscillator and amplifier combination, or a beat-frequency generator including a dynatron oscillator as one element, is stabilized by rectifying the output voltage and applying the resulting D.C. voltage to an auxiliary electrode in the dynatron to adjust its negative resistance. The dynatron V1 feeds a load impedance Z through an amplifier S, and the voltage across the load Z is applied through a transformer T to the anodes D1, D2 of a double diode rectifier included in the same envelope V2 with a triode amplifier K2, G2, A2. The anodes are variably biassed by a battery B4, and the rectified voltage across a resistance R3 is applied between the cathode K2 and grid G2. Amplified voltage arising across a resistance R2 in the plate circuit of the triode is applied between the cathode K1 and the control grid G1 of the dynatron V1 in series with an adjustable bias source B3. The dynatron anode Al is fed from battery B1 1 through a variable series resistance R1. The arrangement keeps the amplitude constant despite variations in tuning, or in the load, or in the gain of the amplifiers. The dynatron may be associated with a second fixedly-tuned oscillator for producing beats, and their amplitude may be stabilized by automatic control of one or both oscillators.
Patent GB-291160-A (GB)
Title: Improvements in or relating to placquets for spectacles and the like
IPC: G02C5/12
Filed: 1927-02-28
Abstract: 291,160. Culver, S. Feb. 28, 1927. Spectacles; eyeglasses.-A separate frame is provided with placquets 40 each of which is hollow and mounted on a ball-head 6 to give universal movement. The head 6 is formed at one end of a pin 5, the other end of which is secured to the bridge 3 or other part of the spectacle frame. The placquets 4 are formed in two parts 7, 8 spun together and have their surfaces roughened or ridged. In one arrangement the placquets are mounted singly on pivoted finger-grips and in another arrangement two placquets are mounted on each grip.