baber/WOPTO huggingface dataset:
Patent GB-239849-A (GB)
Title: Improved manufacture of rubber containing mixtures and articles thereof
IPC: C08K3/32
Filed: 1925-09-02
Abstract: 239,849. Naugatuck Chemical Co., (Assignees of Smith, O. H.). Sept. 15, 1924, [Convention date]. Latex, treating; vulcanizing-compositions. - Alkaline-base phosphates, preferably normal salts, or secondary sodium phosphite are added to latex to act as a preservative, and subsequently as an accelerator of vulcanization of the rubber, or they may be added to plastic rubber as an accelerator. Suitable salts specified are tripotassium phosphate, trisodium phosphate, potassium and sodium pyrophosphates, secondary sodium phosphite, sodium ammonium hydrogen phosphate, secondary ammonium and sodium phosphates. In general, a phosphate having a hydrogen ion concentration in 2 per cent aqueous solution of less than 10-<6> will accelerate vulcanization, but to preserve latex, the concentration must be less than 10<-8>. The proportion of salt added is about 3 per cent or less.
Patent GB-797540-A (GB)
Title: Improvements in or relating to printing mechanisms
Inventor: ASH DENIS JOHN
IPC: B41J1/42
Filed: 1955-07-29
Abstract: 797,540. Typewriters. BRITISH TABULATING MACHINE CO., Ltd. July 29, 1955, No. 21973/55. Class 100(4) A type wheel 1 set by gearing 5-7 is mounted in a plate 3 freely pivoted on a shaft 4. A spring 11 attached to a wire 12 freely slidable in a plate 13 urges the plate 3 and wheel 1 towards a platen 14 but ceases to be effective before impact occurs. Thus, when a notch 10 on a cam 9 comes opposite a projection 8, the spring 11 gives plate 3 an impulse but the type wheel strikes under its own momentum as the wire 12 slides through the plate 13. In modifications, a second cam can replace the spring, and, in other cases, the force of impact can be adjusted, either for individual type wheels or for large banks, by adjusting the tension of the spring or the period for which it is effective. Specification 704,764 is referred to.
Patent GB-830460-A (GB)
Title: Improvements in or relating to metal rectifier stack assemblies
Inventor: MARROW SIDNEY HUGHES
IPC: H01L25/07
Filed: 1958-07-09
Abstract: 830,460. Metal rectifier stack assembly. STANDARD TELEPHONES & CABLES Ltd. July 9, 1958, No. 21980/58. Class 37. A metal rectifier stack assembly comprises a plurality of sub-assemblies each consisting, as shown in Figs. 3 and 4, of a metal rectifier plate 1, having a central hole to clear an insulated mounting spindle sandwiched between a pair of cover-plates 21, made of either an insulating material or of conducting material with an insulating coating, having central holes to clear metal contact and spacing washers and having a resilient insulating tire 31 enveloping the peripheries of the rectifier plate and cover-plates so as to engage closely the outer faces of the cover-plates. The subassemblies are mounted, together with metal washers, insulating washers and terminals, on an insulated rod in any desired combination to form a stack, as shown, for example in Fig. 9, the mounting rod being used, if desired, as one of the output terminals. Alternatively the stack may consist of rectifier plates with cover-plates only on the outer faces of the outer rectifier plates, all plates however being protected by resilient insulating tires.
Patent GB-916765-A (GB)
Title: Improvements in or relating to electric terminal connector assemblies
IPC: H01H9/10
Filed: 1959-06-26
Abstract: 916,765. Switch and fuse contacts. TELEMECANIQUE ELECTRIQUE. June 26, 1959 [March 20, 1959], No. 22038/59. Class 38 (5). [Also in Group XXXVI] A terminal connector comprises a plate 1, a rear portion 1a of which is apertured to receive a terminal screw 4 and a front portion 1b of which is separated from the rear portion by a transverse cut 2 and bent at right-angles to the rear portion. A second plate 8 is attached to portion 1b by a pin 9 which carries a spring 10 pressing the plates together to form a socket for receiving a fuse or switch blade. The connector is mounted in a channel-shaped insulating base 12, Fig. 2, by passing portion 1b under a bridge portion 12d, slotted at 14 for this purpose, until the head 4a of terminal screw 4 locates in a recess 12c whereupon a tongue 1f on the upper edge of portion 1b is displaced against the side of portion 12d to retain the connector. Several such connectors may be incorporated in a junction-box adapted to plug into a conduit (see Group XXXVI). Specification 916,766 is referred to.
Patent GB-405618-A (GB)
Title: Process for the manufacture of soluble arsenic-bismuth compounds
IPC: C07F9/94
Filed: 1932-08-06
Abstract: Aminoaryl arsenic-bismuth compounds, obtainable by the interaction of aminophenyl-arsines with bismuth compounds, are converted into stable, therapeutically-valuable compounds, soluble to neutral solutions, by treatment with formaldehyde - bisulphite or formaldehyde-sulphoxylate in the absence of air.  According to the examples: (1) 4-hydroxy-3-aminophenyl-arsine acetate is combined with bismuth tartrate or with the sodium salt of bismuth 1 : 2-dihydroxybenzene-3 : 5-disulphonic acid in caustic soda solution and the product treated with formaldehyde-sodium sulphoxylate or formaldehyde-sodium bisulphite; (2) the reaction product of 4-hydroxy-3-aminophenyl-arsine acetate with bismuth chloride in acetone solution is treated with formaldehyde-sodium bisulphite.
Patent GB-1457029-A (GB)
Title: Yarn support winding spindle
IPC: B65H54/44
Filed: 1974-05-17
Abstract: 1457029 Spindles RHONE-POULENCTEXTILE 17 May 1974 [18 May 1973] 22159/ 74 Headings DID and D1J A winding spindle comprises a rotatable spindle body 2 with a resilient sleeve 6 which is radially compressible and has at least one bearing surface 7, 8 which in the relaxed state extends radially outwardly beyond the spindle body. The sleeve forming a wall portion of a chamber 5 in which a vacuum can be created. The bearing surfaces 7, 8 grip the inside of a bobbin 9 and may be released therefrom by applying a vacuum in the chamber 5. In Fig. 1 vacuum is communicated to the spindle through a pipe 15 a seal to the spindle being formed by "O" rings 18, 19. The "O" rings 18, 19 do not normally contact the spindle and are pushed into contact by applying pressure behind them via pipe 34. In Fig. 2 vacuum is communicated to the spindle through a pipe 25 the seal being formed by a flared skirt 29 of resilient material which is drawn into sealing contact with a face 26 by the vacuum but which is held away from face 26 by centrifugal effects during spindle rotation. The spindle has a centrifugal centering device consisting of three weights 30 which contact the bobbin interior under the influence of low force springs 32. The spindle bearings are lubricated by an oil mist delivered through a central pipe 21. The spindle may be driven by a gas turbine 11 incorporated into the spindle base.
Patent GB-615127-A (GB)
Title: Improvements in or relating to agricultural machines
IPC: A01B41/06
Filed: 1946-07-26
Abstract: 615,127. Agricultural implements. FERTE, A. M. A. July 26, 1946, Nos. 22309 and 22310. Convention dates, July 26, 1945 and July 12, 1946. [Class 6 (i)] A machine for thinning growing crops employs tools capable of being retracted, the tools being under the control of a feeler adapted to close, through a plant, a relay circuit responsible for the retraction of the tools, the machine being further provided with means for rendering the feeler inoperative at intervals so that plants may be thinned out over predetermined distances. In the form shown, the tools 50 are mounted on a drum 51 continuously rotating about a longitudnal axis of the machine. The tools are secured in an operative, radially-projecting position by bolts 54 which can be tripped by an abutment 55 operated by a relay 11. The relay forms part of the anode circuit of a thyratron, the grid of which is connected to a feeler similar to that described in Specification 615,111. When the bolts are tripped, springs 53 automatically pull each tool into an inoperative position parallel to the axis of the drum, the tools being re-set again by engagement between rollers 58 and a stationary cam 59. In order that the thinning operation shall result in regularly-spaced plants, the tools must remain retracted for a distance corresponding to the width of the plant to be preserved and then work the ground for a further distance corresponding to the plant spacing required. The thyratron anode circuit is therefore provided with a contact breaker 34 controlled by a double cam 24, 29. Contact between a feeler and a plant operates the thyratron and releases a bolt 21 thus permitting rotation of the cam which is driven from a continuously-rotating shaft through a clutch. The contacts remain closed while the cam rotates through an angle #, Fig. 5, the tools being meanwhile retracted. When the arcuate portion of the cam surface 29 strikes an abutment 37, the thyratron anode circuit is broken and the tools work the ground for the remainder of one revolution of the cam, after which the device resets itself through the locking of the bolt 21. In a purely electrical method of achieving the same result, the anode circuit is broken by a spring-loaded armature controlled by a solenoid. Resistances and condensers may be placed respectively in series and parallel with the solenoid to vary its attractive force on the armature, and thus the time of opening and closing of the contacts carried by it.
Patent GB-517439-A (GB)
Title: Improvements in or relating to railway and like rails
IPC: E01B11/24
Filed: 1938-07-27
Abstract: 517,439. Railway &c. rail joints. CASTAGNA. F. July 27, 1938, Nos. 22373, and 22374. Convention dates, July 2.7, 1937, and June 1, 1938. [Class 104 (ii)] In a lap joint, parts 4, 6 of the overlapping rails are tapered but out of contact, while other parts 3, 7 and 5 are parallel to the length of the rails and in sliding contact, so that during expansion movement, no widening of the joint takes place. The upper surface of the'rail adjacent the free end is inclined downwardly, and the web is the same width as the head of the rail.
Patent GB-540204-A (GB)
Title: Arm-chair or the like which can be converted into an easy-chair or into a bed
IPC: H01M50/528
Filed: 1939-08-02
Abstract: 540,204. Seats, bedsteads. INVERNIZZI, L. Aug. 2, 1939. No. 22375. Convention date, Aug. 6, 1938. [Class 52 (ii)] A convertible seat comprises a central frame A, a seat frame B hinged to the frame A at 10 and forming the seat and a back frame C pivoted at 11 to the frame A and being provided with an extension 12 to which is pivoted a link 15 having a slotted end 16 adapted to engage a stud 19 fixed to the frame A. When the frame B is folded down horizontally the link 15 is enabled to move forwardly and allow the back frame C to fold down so that the three frames A, B, C form a bed as shown in Fig. 3. Ratchet teeth 18 are provided in the slotted end 16 to engage the pin 19 when it is desired to raise the frame C into an inclined position as indicated in dotted lines.
Patent GB-1079033-A (GB)
Title: Semiconductor diode construction
IPC: H01L23/36
Filed: 1963-06-05
Abstract: 1,079,033. Semi-conductor laser diode. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 4, 1964 [June 5, 1963], No. 22457/63. Headings H1C and H1K. Molybdenum stud heat sink 4 is provided with a conductive layer of gold and zinc and secured to the P-type region 1 of a laser diode while molybdenum stud heat sink 5 is provided with a conductive layer of gold and tin and secured to the N-type region 2. The diode which may be of gallium arsenide or phosphide is gold plated 6 around the base of each stud to within 100Á of the junction 3 which is left free. The sides of the diode are coated one at a time, a wire being used to cover up the N-P junction. The wire is accurately located by passing current through the diode so that it emits radiation from the junction and positioning the wire between the junction and a silicon photo-cell so as to cut-off completely the radiation to the photo-cell. The plating improves heat flow from the junction.
Patent GB-863533-A (GB)
Title: Polymeric amidoximes
Inventor: SCHOUTEDEN FERDINAND LEONARD
IPC: D06M11/63
Filed: 1959-07-01
Abstract: 863,533. Treating polymers with hydroxylamine. GEVAERT-PHOTO PRODUCTEN N.V. July 1, 1959 [July 1, 1958], No. 22611/59. Addition to 786,960. Class 2(6). Polymers containing nitrile groups are reacted with hydroxylamine whilst swelled or dissolved in a concentrated aqueous salt solution, e.g. aqueous solutions of calcium chloride, perchlorate and nitrate, zinc chloride and thiocyanate, cadmium bromide and iodide, lithium chloride, aluminium perchlorate and sodium, guanidine and alkyl-substituted guanidine thiocyanates. Polymers specified are homo- and co-polymers of acrylonitrile, methacrylonitrile and vinylidene cyanide, and cyanoethylated cellulose. Example 2 describes the hydrolysis with hydrochloric acid of the reaction product of polyacrylonitrile and hydroxylamine and Example 4 describes the preparation of a film dyeable with acid dyestuffs from the reaction product of a vinylidene cyanide copolymer and hydroxylamine sulphate. The products may be used in the manufacture of paper, as additives to colloidal solutions and in photographic layers. Specifications 672,775 and 717,972 also are referred to.
Patent GB-481193-A (GB)
Title: Improvements in methods of modifying the properties of tar or bitumen or both, by incorporation of a filler
IPC: C08L95/00
Filed: 1937-04-30
Abstract: 35 to 50 parts by weight of pulverized spent oil shale are added to 65 to 50 parts of tar or bitumen or both, and the mixture is heated to a temperature between 90 and 120 DEG  C., to produce a tar &c. having increased viscosity at temperatures below 80 DEG  C. but not substantially increased viscosity at temperatures between 80 and 120 DEG  C. and having also increased adhesiveness, speed of drying and resistance to "sweating" of moisture and to ageing. The shale may pass a 200 mesh sieve.  The Specification as open to inspection under Sect. 91 refers to the use, instead of spent oil shale, of bituminous stone, calcareous and bituminous clays, clays containing "distillable products," and the "waste products of the mining industry, of coal and ore washing and of combustion."  This subject-matter does not appear in the Specification as accepted.
Patent GB-650527-A (GB)
Title: Improvements in or relating to radio navigation systems
IPC: G01S1/02
Filed: 1946-08-26
Abstract: 650,527. Radio navigation. O'BRIEN, W. J. Aug. 26, 1946, No. 22641/49. Divided out of 630,080. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 31, 1949.] Drawings to Specification. [Class 40 (vii)] The subject-matter of this Specification is substantially the same as that described in Specification 630,080. The claims are directed to the feature that the indicating means at the navigation system receiver hold the successive indications for periods longer than the duration of the corresponding transmissions. Specifications 620,479, 620,480, [Group XXXVI], and 620,481 are referred to. Reference has been directed by the Comptroller to Specifications 630,080 and 631,668.
Patent GB-427169-A (GB)
Title: Improvements in indicating mechanism for measuring instruments
IPC: G01L7/12
Filed: 1933-08-14
Abstract: 427,169. Indicating-apparatus. NUTSFORD, A., 110, Reading Road, Farnborough, Hampshire. Aug. 14, 1933, No. 22656. [Class 106 (iv)] In indicating-apparatus wherein a pointer spindle having a long-pitch screw formed on it is engaged by an arm which acts as a nut to rotate the spindle, the arm is forked and presses resiliently against the screw to prevent backlash. In one form, Fig. 1, movement of a barometric capsule 24 rocks the arm 18 gripping by a resilient forked portion 20 the screw 13 secured to the pointer 16. The end of the lever is formed as a helix 21, this helix acting both as a point of flexure and as a restoring spring. Beyond the helix the lever is secured in a universally-adjustable support 27. In the modification shown in Fig. 2 the actuating member 31 slides vertically and is returned by a spring 34. In another form, Fig. 3, the actuating lever is formed with four helices so that the forked part 18 gripping the screw 13 has a parallel movement. In a further modification, the actuating lever is pivoted to its support and is provided with an adjustable counterpoise. The screw 13 may have a pitch varying along its length. Such a screw is formed by twisting a strip of varying crosssection.
Patent GB-699350-A (GB)
Title: Improvements in framed articles for toilet or personal use
IPC: A45D42/00
Filed: 1950-09-15
Abstract: 699,350. Ornamenting. FANCY METAL GOODS, Ltd., and LEITER, H. Sept. 6, 1951 [Sept. 15, 1950], No.22686/50. Class 93. In framed articles such as hand mirrors, hair brushes, clothes brushes, powder bowls, cigarette boxes and pin trays, a part of the article such as the back of a hand mirror, is provided with two decorative sheets arranged one over the other with the outer sheet having an opening which discloses a portion of the inner sheet, the opening being fitted with a bezel which forms a frame round the inner sheet. As shown, a circular hand mirror is enclosed in a decorative frame 2 which embraces a filling 3, two sheets 4 and 5 of different decorative value and a transparent panel 6. Sheet 4 is a flat ring of mother of pearl, ivory, shell or plastic and sheet 5 is of petit point. 7 is a decorated metal bezel fitted in the bore of sheet 4 so that its rim 8 forms a frame round the visible part of sheet 5. The bezel is attached to sheet 4 by four tongues which are bent back over sheet 4.
Patent GB-961703-A (GB)
Title: An improved valve unit for an emergency oxygen system for an airman
Inventor: ALLEN GEOFFREY REX
IPC: A62B9/02
Filed: 1959-07-02
Abstract: 961,703. Respiratory appliances. MINISTER OF AVIATION, and HYMATIC ENGINEERING CO. Ltd. Sept. 16, 1960 [July 2, 1959], No. 22726/59. Heading A5T. [Also in Division F2] A valve unit for an emergency oxygen supply is provided with a pressure relief valve 37 having a primary and secondary loading, the latter being effected by an evacuated bellows 50 which become effective above a given altitude ; the operative area of the bellows determines the characteristic of the secondary loading (see also Division F2). The unit also comprises an oxygen inlet controlled by a valve 5 which is opened when a bayonet coupling on the supply pipe is coupled to the aluminium alloy body 1; the outlet 8 to the breathing mask is rotatably mounted in the body 1 and oxygen passes thereto via a check valve comprising a flexible silicone-rubber disc 17 backed by a dished brass disc 18 both of which are centrally riveted 19 to the seat 13. Opposite the outlet 8 is an inlet 20 for atmospheric air, in which inlet is a filter 34; between the inlet and the exterior of the body is a check valve comprising a disc 28 of graphiteimpregnated silicone-rubber riveted to a carrier 27 and guided by a housing 23, the disc 28 being urged on to its seat by an adjustable spring 30. The inlet valve enables atmospheric air to be inhaled should the emergency oxygen supply fail.
Patent GB-1104044-A (GB)
Title: Method of vacuum casting using high-temperature sealing compositions
Inventor: O'BRIEN JOHN J
IPC: C08G59/60
Filed: 1965-05-28
Abstract: 1,104,044. Ingot-casting machines. W. R. GRACE & CO. 28 May, 1965 [20 July, 1964], No. 22846/65. Heading B3F. A metallic vacuum chamber 5b is sealed to a mould 1 by means of a sealing composition obtained by mixing (A) a first component comprising (i) a liquid epoxylated phenol-formaldehyde novolac and (ii) a finely divided inorganic filler and (B) a second component comprising (i) a liquid resinous polyamide and (ii) at least a stoichiometric amount of an amine curing agent for the novolac. Molten metal is poured through the evacuated chamber 5b into the mould 1, and when the sealing composition has sufficiently decomposed the vacuum chamber is removed. An ingot mould 1 has a cylindrical cavity 2 tapering at its lower end and an annular groove 3 containing the sealant 4 providing a vacuum-tight seal between the mould 1 and the pouring box 5. Box 5 is divided by wall 5c into a molten metal reservoir 5a and vacuum chamber 5b. Pouring aperture 6 is closed by a closure fusible by the molten metal. 8 is an annular refractory hot top and 9 a vacuum line. In use the vacuum causes the stream of molten metal from 6 to disrupt into a spray enhancing degassing. Further degassing may be effected after all the metal has been poured into the mould by closing aperture 6 and maintaining the vacuum to cause ebullition in the mould.
Patent GB-779390-A (GB)
Title: Casting concrete slabs
IPC: B28B7/18
Filed: 1955-08-09
Abstract: 779,390. Moulds for concrete slabs. UNION JOINERY & IMPORTING CO., Ltd. Aug. 9, 1955 [Aug. 18, 1954], No. 22893/55. Class 87(2). Concrete slabs with a pattern of transverse holes are cast in a dismountable mould divided into moulding spaces by plates 17 on the faces of which cores 15 are detachably mounted by slidable cross pins 16. The components are shown in the " exploded " position in the crosssection of the mould shown in Fig. 2, and are held in place, when in use, by cross bolts 18, on which also reinforcement mats 25 are threaded. The mats are free to move along the bolts but are held steady by spacers 27. Serrations may be formed in the bottom edges of the plates by a bottom lining 22, on the inside of the mould bore 10, formed with saw-tooth corrugations 23. The top edges of the cast plates are serrated by screeding, the sides of the mould being serrated along their top edges to allow this. The faces of the mould are previously greased. The mould is vibrated as the concrete is poured in.
Patent GB-1366243-A (GB)
Title: Motor vehicle drive lines
IPC: F16F15/10
Filed: 1972-05-16
Abstract: 1366243 Vehicles NISSAN MOTOR CO Ltd 16 May 1972 [12 Nov 1971] 22894/72 Heading B7H [Also in Division F2] The final drive of a vehicle is provided with an inertial mass to damp vibrations in the transmission and comprises a pinion drive shaft 21 carried by spaced bearings 22, 23 in axle housing 20. The pinion drive shaft 21 has a drive flange 26 by which it is connected to the rear universal joint 30. In one embodiment (Fig. 6) the inertial mass is a flywheel 33 bolted between the flanges of the rear universal joint 30 and of the pinion drive shaft 21, respectively. The flywheel may comprise an annulus 34c of rubber or ductile plastics (Fig. 7A). In one modification (Figs. 8, 9, not shown) the flywheel is integral with the pinion shaft drive flange 26, while in another modification (Fig. 10, not shown) it is integral with the rear universal joint. In a further modification (Fig. 11, not shown) the spacer sleeve between the two bearings for the pinion drive shaft is of inreased thickness and, therefore, inertia.