baber/WOPTO huggingface dataset:
Patent GB-648424-A (GB)
Title: Improvements in and relating to bolts and bolting
IPC: F16B37/00
Filed: 1948-05-03
Abstract: 648.424. Tube joints. ALLARD, P. J. M. T. May 3, 1948, No. 12119. Convention date, May 19, 1947. [Class 99(i)] [Also in Groups XXII and XXV] A connection for tubes intended to resist shear only, comprises a sleeve with a taper head 13 having a counterbore to receive the head of a bolt 3, and a snug 11 engaging a notch in the tube wall 9 to prevent rotation. The other end of the sleeve is provided with a number of slots 2 to permit expansion by a conical nut 4 having a snug 7 sliding in one of the slots. Two tubes are telescoped and a number of the devices are employed in holes drilled in the overlapping tube walls.
Patent GB-688755-A (GB)
Title: Improvements in or relating to the production of interpolymers of styrene and nuclear alkyl- or halogen-substituted styrene with esters of fatty oil acids
Inventor: ARMITAGE FRANK
IPC: C09D125/14
Filed: 1949-05-06
Abstract: Interpolymers are prepared by heating styrene or a nuclear alkyl- or halogen-substituted styrene with an unpolymerized non-conjugated polyhydric alcoholic mixed ester at a temperature not less than 100 DEG  C., e.g. under reflux, whilst passing oxygen through the mixture.  Specified styrene derivatives are o- and p-methyl, o-, m- and p-ethyl, p-isopropyl and o- and p-chloro styrenes.  The mixed ester may be a blown or unblown drying or semi-drying oil, e.g. linseed, perilla, chia, soya bean, sunflower and safflower oils, or a synthetic oil produced by esterifying glycerol or pentaerythritol with drying or semi-drying oil fatty acids, e.g. elaeostearic, licanic, linolenic, linoleic and ricinoleic acids, alone or admixed with other saturated or unsaturated monobasic fatty acids, e.g. sorbic, cinnamic, acrylic, methacrylic and crotonic acids, or the half esters of maleic and fumaric acids.  A mixed ester containing conjugated fatty oil acid radicles, e.g. wood oil, may be included so long as the mixture is predominantly non-conjugated.  The reaction may be carried out at superatmospheric pressure, in mass or in the presence of xylene, white spirit, aromatic white spirit or a terpene, e.g. dipentene.  The styrene or the terpene may be added either continuously or intermittently.  The lower molecular weight products may be removed by precipitation with petroleum ether, to yield (in example 1) a copolymer having an oil content of 14 per cent. Specification 573,809 is referred to.
Patent GB-994561-A (GB)
Title: Improvements in and relating to travelling-wave tubes
IPC: H01J23/26
Filed: 1964-03-23
Abstract: 994,561. Travelling wave tubes. HUGHES AIRCRAFT CO. March 23, 1964 [April 3, 1963], No. 12240/64. Heading H1D. A multifilar helix slow-wave structure for a travelling wave tube comprises a plurality of equally spaced individual helical conductors 50, 52 having the same helical diameter and pitch disposed about a common axis, and a plurality of electrically conductive elements 54<SP>1</SP>, 5411, each of the elements defining an aperture 56 encompassing the axis and aligned with the respective apertures in the other ones of the elements, each of the elements having a plurality of portions 54a, 54b, Fig. 3, equal in number to the number of individual helical conductors, each portion extending radially from its aperture and being electrically connected to one of the helices, the direction in which the portions in one element extend being angularly displaced from the direction of the portions in adjacent elements. As shown, the slow-wave structure is bifilar and adjacent elements are angularly displaced by 90 degrees. The axial distance s between the elements is equal to nP/ 4  where P is the pitch of the helix and n is an integer, equal to one in Fig. 2. The parts of the elements lying between the portions 54a, 54b may be sprayed with lossy material, or these parts made of lossy material. A travelling wave incorporating the slow-wave structure preferably uses periodic permanent magnet focusing, or alternatively non-periodic permanent magnet, solenoid or electrostatic focusing. If a high magnetic field is required when using a periodic focusing field then the elements 54<SP>1</SP>, 54<SP>11</SP> may be of ferromagnetic material.
Patent GB-1394938-A (GB)
Title: Powderless etching bath compositions
IPC: C23F1/30
Filed: 1973-03-14
Abstract: 1394938 Etching MONA INDUSTRIES Inc 14 March 1973 [29 March 1972 (3)] 12240/73 Addition to 1394688 Heading B6J An etching batch, and an additive composition to form an etching bath by the addition of mineral acid, as described in Application No. 12239/73, contains in addition one or both of the following; (3) at least one saturated or olefinically unsaturated (a) lower monocarboxylic acid with 2-6 carbon atoms and/or (b) lower poly-carboxylic acid with 2-10 carbon atoms; (4) at least one polyhydric alcohol with 2-10 carbon atoms, or an ether derivative thereof. Examples of (3)(a) are acetic, butanoic, hexanoic, acrylic, crotonic and isocrotonic acids, and chloro-, fluoro-, bromo-, iodo-, hydroxy-, sulpho- or cyanosubstitutes thereof, such as chloroacetic or glycolic acid. Examples of (3)(b) are oxalic, malonic, succinic, glutaric, adipic, suberic, azaleic, sebacic, hydroxymalonic, malic, tautaric, maleic, itaonic, 2-hydroxy-hex-3-en-1,6-dioic, citric, aconitic, or 4-hydroxy-1,2,6-hexatinoic acids. The additive composition may contain sodium or other alkali metal, ammonium or amine salts of the above acids, e.g. sodium succinate, ammonium itaconate, sodium sulphosuccinic acid, tri-sodium sulpho-itaconate. Examples of (4) are ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, hexylene glycol, glycine, and diethylene glycol monoethyl or monobutyl ether. The composition may also include (5) at least one alkylaryl sulphonate with 6-12 carbon atoms in the aryl moiety and 8-18 carbon atoms in the alkyl moiety. Examples of (5) are alkylbenzene or alkylnaphthalene sulphonates, e.g. the sodium or amine salts of decylbenzene, dodecylbenzene, tetradecylbenzene, propylnaphthalene, amylnaphthalene, diamylnaphthalene or dodecylnaphthalene sulphonates. The proportions may be: mineral acid, 30-300 grams per litre, (1) 0À5-10 grams, (2) 0À5-10 grams, (3) 0À5-10 grams, (4) 1-200 grams, (5) 0À2-10 grams.
Patent GB-460640-A (GB)
Title: Improvements in and relating to veneer plates
IPC: B27D1/00
Filed: 1935-04-23
Abstract: 460,640. Veneers; plywood. KAUFMANN, P. April 23, 1935, No. 12273. Void. Convention date, April 21,1934. [Class 145 (ii)] [Also in Group VIII] A veneer sheet a, Fig. 1, is strengthened by spaced threads b extending in a direction differing from that of the fibres, and preferably at right angles thereto. The threads may be arranged in the form of a hand or machine sewn seam or may be tacked or fixed by hooks. In a modification, Fig. 4, three sheets of veneer are secured together by threads b to form plywood. The middle layer may comprise thin metal or wire gauze. The threads may extend through the material of the middle layer, or the middle layer may comprise separate sections c, Fig. 6, spaced apart so that the threads b do not pass through them. In a further modification, Fig. 8, veneer sections a<2>, a3, a4 are secured together by threads b to form a sheet ; the sections may butt together or overlap.
Patent GB-709734-A (GB)
Title: Process for vat dyeing cellulosic textile materials in package form
Inventor: BRADLEY HERBERT BRIAN
IPC: D06P1/22
Filed: 1951-05-25
Abstract: In the vat-dyeing of cellulosic textile materials in package form in a circulating-liquor dyeing machine, cleaner and brighter dyeings are obtained by employing, as the dyeing liquor, an aqueous alkaline solution of the leuco form of one or more vat dyestuffs, the solution also containing anthraflavic acid (2 : 6-dihydroxyanthraquinone). Vat dyes derived from anthraquinone and related poly-nuclear quinones and vat dyes of the indigoid and thioindigoid series may be employed, those specified in the examples being the leuco forms of 1 : 4 : 5 - tribenzoylaminoanthraquinone, Caledon Gold Orange G200 Paste Fine and terephthal-5 : 5\sv dibenzoylamino-1 : 1\sv-dianthraquinonylamide. The process is applicable to natural and regenerated cellulose textile materials.  Specification 3241/11, [Class 15(ii)], is referred to.
Patent GB-831961-A (GB)
Title: Improvements in or relating to the manufacture of shaped structures such as filaments or foils from high-melting linear polyesters
IPC: D02J1/22
Filed: 1956-04-23
Abstract: Extruded filaments, films and like shaped structures of linear polyesters are heated without stretching until pre-orientation, i.e. orientation imparted by the extrusion process, is substantially removed to a temperature above the second order transition point and below the lower limit of the thermoplastic temperature range of the polyester, and are thereafter stretched in at least one dimension. Preferably the heat treatment is effected at a temperature above the second order transition point and below the apparent minimum crystallization point.  The heat treatment may be effected discontinuously on wound threads, so that shrinking is prevented, or on hanks, so that shrinking may proceed simultaneously. Alternatively the treatment may be a continuous treatment of a thread or cable, allowing or preventing shrinkage as desired.  Hot water, hot air or steam may be used to effect the heat treatment.  Specified linear polyesters are polymethylene terephthalates, e.g. polyethylene terephthalate, and polyesters of para - o  - hydroxybutoxybenzoic acid and hydroxypivalic acid.  Minor quantities of other bifunctional components may be incorporated with the polyesters, e.g. isophthalic acid, adipic acid, sebacic acid, diphenyl para-para-dicarboxylic acid, naphthalene - 2 : 7 - dicarboxylic acid and naphthalene - 1 : 5 - dicarboxylic acid, or the polyesters may be derived from 1 : 4-butanediol or hexamethylene glycol.  In an example, polyethylene terephthalate is melt-spun into thread which is wound on a bobbin and subsequently run without tension through a water bath at 95 DEG  C. The thread is thereafter oriented by cold drawing.  Specification 695,567 and U.S.A. Specification 2,578,899 are referred to.
Patent GB-1001914-A (GB)
Title: Improvements in or relating to the production of expanded thermoplastic material
IPC: B29C44/34
Filed: 1964-03-24
Abstract: A method of producing expanded thermoplastic material comprises heating thermoplastic material to a temperature at which it is plastic but not liquid, adding an expanding agent thereto before, during or after said heating operation, mixing the said materials in a mixing device without the application of external heat and passing the mixed materials out of the device, in which mixing occurred, at such a temperature that rapid solidification accompanies the expansion of the expanding medium, to produce a stable expanded structure.  The degree of expansion can be adjusted by altering the pressure on the thermoplastic material as it is released from the mixing device.  Apparatus for producing the expanded material comprises a warming device for the thermoplastic material, a mixing chamber with a mixing rotor, means for moving the material from the warming device into the mixing chamber and means for supplying an expanding medium to the said chamber.  The thermoplastic material may be polyethylene, polypropylene or a polyamide and the expanding agent may be helium, nitrogen, hydrogen, air or a gas-liberating material such as ammonium carbonate.
Patent GB-451713-A (GB)
Title: Improvements in linear dimension recording gauges
IPC: G01B5/14
Filed: 1935-04-25
Abstract: 451,713. Linear dimension gauges. SAWFORD, F., 510, Credit Foncier Building, Vancouver, Canada. April 25, 1935, No. 12462. Convention date, May 5, 1934. [Class 106 (ii)] Comprises a construction of recording gauge adapted to be located between two parts such as the webs of a crank-shaft while the latter is rotated, the chart drum being held from rotation about its axis and the pencil moving with the change in the dimension under investigation. An arbor 11 having intermediate squared portions 12, 13 and circular end portions 14, 15 has supported upon it by ball bearings 33 a paper carrying drum 35. Frictionally held in the end of the drum is a ring 38 to which a counterweight 40 is attached. One end of the arbor is bored and screwed to receive a screw 20 having a conical end 23. The other end is bored to receive a sliding plunger 75. Upon this end is a sleeve 29 carrying a ring of rubber the sleeve being pressed outwards against a collar 8 fixed to the end of the arbor by a spring 19. A transverse hole 50 is provided in the intermediate portion of the arbor in which a plug 51 is slidably mounted. The head of the plug is secured by screws to the arbor between which and the head are placed shims for adjustment purposes. A lever 55 is pivotally mounted at one end upon a pin 56 carried by the plug 51 and is connected through linkage 60, 63, 64 to a rod 72 which slides in a guide 73 in a disc 16 secured to the arbor. Springs 77 attached to linkage and to the arbor hold the lever 55 against the inner end of the plunger. The rod 72 carries a resilient recording arm 80, the attachment to the rod being such that the arm can be swung out so that a paper may be secured to the drum by a clip. In use, the crank is brought to near its bottom centre and a punch mark made in the inside face of the web near the edge. The instrument is then inserted between the webs with the friction ring 30 in engagement with the inner face of the web not punched. The screw 20 is now adjusted to engage the punch mark and the instrument adjusted, by turning the screw 20 until the recording pencil 83 is about midway between the ends of the drum. The latter is next adjusted about its axis against the friction of the ring 38 until the paper clip is adjacent the pencil. The end of the chart next the sleeve 29 is then marked " plus " and the other end " minus." The crank is now rotated when the drum will be prevented from rotating on its axis by the weight 40. If the shaft is not properly aligned in its bearings, the crank webs will be deflected and this causes relative movement of arbor 11 and plunger 75 which is recorded.
Patent GB-1310576-A (GB)
Title: Process and device for heat treatment of heavy porous textile webs
IPC: F26B13/10
Filed: 1970-03-16
Abstract: 1310576 Heat treatment of textile webs ARTOS DR ING MEIER-WINDHORST KG 16 March 1970 [19 March 1969] 12464/70 Heading F4G Apparatus for the heat treatment of a textile web of the type having a pile comprises a tentering machine whose chains 18 guide the web 10 with its pile upwards over a chamber 19 into which a treatment medium, e.g. hot air is introduced through a plurality of nozzles 21, the hot air being blown through the web in a direction opposite to the weight of the web 10 when passing over the nozzles 21, the web 10 being supported by the treatment medium. To reinforce the heat treatment air is also blown down on to the web 10, and the pressure in the chamber 19 can also be regulated by a throttle valve 26 in an exhaust pipe 25. In a further embodiment, Fig. 3, the web 10 is drawn over stationary cylinders 13 in whose upper surface are outlets 12 for the hot air, the web being supported by the air when passing over the cylinders 13 and being driven by rollers 16 located below and between the cylinders 13. Alternatively the web 10 may hang freely between the cylinders (13), Fig. 4 (not shown).
Patent GB-377998-A (GB)
Title: Improvements relating to loose leaf binders
IPC: B42F13/12
Filed: 1931-04-28
Abstract: 377,998. Loose-leaf binders. COUTTS, A. E., 26, Budge Row, and FULTON, J., 128, College Road, both in London. April 28, 1931, No. 12497. [Class 146 (i).] Means for converting temporary binders for loose leaves, pamphlets, &c. into permanent binders comprises a metal channel E, Fig. 1, placed over the papers on the filing-posts D or other filing-members, and compressed thereon by nuts K on the filing-posts or otherwise, and a metal channel G, Fig. 2, on the front cover flanged at both ends and within which is riveted a metal spring H having free ends J which interlock with the channel E when it is inserted laterally into the channel G. According to the Provisional Specification, a strip 1 of compressed fibre or other material punched to the gauge of the filing-members may be placed in the channel G before closing the filing-members.
Patent GB-225130-A (GB)
Title: Improvements in and relating to vehicle steps
IPC: B60R3/02
Filed: 1924-05-21
Abstract: 225,130. Vogel, C. H. May 21, 1924. Steps.-A vehicles. door A is fitted with a depending telescopic or other rod &c. 9 having at its lower end a spring- pressed roller 13 adapted to engage either the tread 2 or riser 3 of a step member 1 to move the step member into its operative or inoperative position. The step member, which is located in an opening 4 beneath the door A, is pivoted at 5 to hangers 7 secured to the vehicle frame. When there are doors on both side of the vehicle, transverse braces 8 connect me hangers 7.
Patent GB-549599-A (GB)
Title: Improvements in or relating to exhaust silencers for internal combustion engines
IPC: F01N1/00
Filed: 1941-09-30
Abstract: 549,599. Exhaust-silencers. SMITH, B. Sept. 30, 1941, No. 12618. [Class 7 (ii)] A silencer comprises a . number of longitudinal, circumferentially - spaced chambers 1 arranged to communicate by ports 6 with the exhaust pipe 2 at opposite sides of a perforated disc 7 or other means for restricting the flow through the pipe. The chambers may be of rectangular, triangular, segmental &c. crosssection, and may be welded to the pipe 2, being either made separately or in one piece, for example of star-shape section. The ends 5 of the chambers are inclined as shown. The disc 7 may be provided with a perforated flange which may be adjusted along the pipe 2 so as to control the effective area of the ports 6 leading from the chambers 1 back to the pipe 2.
Patent GB-1374891-A (GB)
Title: Circuit arrangement for desired value transmission in material
IPC: G01N3/06
Filed: 1972-03-17
Abstract: 1374891 Automatic control CARL SCHENCK MASCHINENFABRIK GmbH 17 March 1972 [21 Feb 1972] 12714/72 Heading G3N A control circuit for a material testing machine is responsive to signals indicative of first and second components of stress to selectively control the loading devices of the testing machine. As shown, command signals Al, Bl representative respectively of desired vibration amplitude and mean load, are fed from a programmer not shown, to terminals 13, 11. The signal Al is fed through an RC integrator 22 to an output terminal 14 as a signal A2 for a vibration regulator, not shown. The signals Al, A2 are both fed to inputs of a differential amplifier 6, the output of which sets trigger stages 2, 3 as indicated. The signal Bl is fed through resistors 15, 16 to terminal 12 where, as signal B2, it controls a load regulator, not shown. The signal Bl is modified to B2 by a parallel path to resistor 16, comprising an amplifier 18 and an operational amplifier 21 which is connected as an integrator. A trigger stage 1 is responsive, as indicated, to the difference between signals B1, B2 to provide, together with trigger stage 2, inputs to an AND- gate 4 controlling a switch 8 isolating integrator 22. The trigger stage 3 controls a switch 7 earthing the integrator 5. In operation when Al greater that A2, B1 greater that B2 then trigger stages 1, 2 open gate 4 which opens switch 8 to prevent the vibration amplitude changing. When B2 has increased to equal B1, gate 4 closes and A2 increases to equal. Al. When Al greater than A2, B1 less than B2 gate 4 opens switch 8 and B2 falls to B1 subsequently A2 increase to Al. When Al less than A2, B1 greater that B2 then trigger stages 3 closes switch 7 to prevent a change in B2. When A2 has fallen to equal Al at a time constant determined by resistor 9 and capacitor 10, then switch 7 opens and Bl increased to equal B2. A similar sequence operates when Al less than A2, Bl less than B2.
Patent GB-528515-A (GB)
Title: Improvements in and relating to two-way electrical signal transmission systems
IPC: H04J1/00
Filed: 1939-04-28
Abstract: 528,515. Two-way repeaters. STANDARD TELEPHONES & CABLES, Ltd., and WALSH, R. April 28, 1939, No. 12787. Drawings to Specification. [Class 40 (iv)] In a system comprising a balanced twowire path the frequency range in which the singing point, i.e. the attenuation across the hybrid coil less 6 decibels, is greater than the line circuit attenuation but is too small for balanced two-wire working is used for signal transmission by arranging that adjacent channels the nominal frequency bands of which overlap are worked in opposite directions. The invention may be used for superimposing super-audible telegraph channels on a telephone circuit.
Patent GB-437298-A (GB)
Title: Improvements in and connected with construction sets, and particularly constructional toys
IPC: A63H33/10
Filed: 1934-04-27
Abstract: 437,298. Furniture. PEDIANI, W. E., 32, Connaught Road, New Malden, Surrey. April 27, 1934, No. 12808. [Class 52 (ii)] [See also Group XV] A construction set for toy or full-size articles or structures comprises channel section mounts with inturned edges engaging in grooves near the ends of strips, the mounts and strips having spaced perforations receiving connecting bolts or pins. In the construction shown in Fig. 1, narrow strips of wood c are held together by channel section metal mounts a having inwardly turned edges b engaging in grooves d on opposite faces and at the ends of the strips c. The strips and mounts are firmly secured together by screws or bolts f engaging in correspondingly spaced perforations e, el in the mounts and strips respectively. The strips c may be spaced along the mounts a with or without spacing members which may be formed with perforations or recesses, screw-threaded if desired for the reception of hooks or rods. In the construction shown in Fig. 2, short strips c<1> are also employed inserted in secondary mounts a<2>, a<3>, a<2>, the mounts a<2> being bolted to strips c<1> and having their side walls extended to form lips k engaging the adjacent strips c. Screws f which secure the mounts a<2> to the strips c<1> may also serve for the attachment of the hinges m of a window shutter l. In the construction shown in Fig. 3, the screws f which secure the mounts a<2> to the strips c<2> also serve for the attachment of L-shaped brackets o to which are secured mounts a and strips p, p'. In the construction shown in Fig. 6, two strips r, r<1> are secured together end to end in the same plane by plates q having inturned edges q<1> for engagement with grooves in the ends of the strips. In the construction shown in Fig. 7, the strips have mitred ends to form a lattice girder formation for a foot-bridge or trestle. The channel section mounts may be produced from extruded metal such as steel, and instead of having inturned edges b may be of the forms shown in Figs. 8 and 9. Fig. 10 shows a mount for connecting strips at right angles to each other, replacing the bracket o, Fig. 3. A hut and a chair constructed from the elements mentioned above are described and shown.