baber/WOPTO huggingface dataset:
Patent GB-243188-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1925-01-05
Abstract: 243,188. Coventry Automatic Telephones, Ltd., and collyer, J. E. Jan. 5, 1925. A u t o m a t i c exchange systems.-In a system in which automatic switches such as numerical selectors have access over intermediate non-numerical switches to outgoing trunks, only that non-numerical switch which is next available to a particular selector is caused to preselect an idle trunk. Such a switch on being taken into use closes a circuit for causing the next available switch to preselect. Alternatively, to take care of practically simultaneous connections, the next two or more. non-numerical switches may be caused to preselect. The switch shown is accessible from a particular level of a Strowger group selector and when the preceding switch accessible on that level is taken into use the switching relay 51 thereof completes a circuit for relay 3 which connects stepping magnet 5 to the test wiper 8 so that the switch hunts until an idle two-wire inter-exchange trunk 14, 13 is reached. When this switch is subsequently seized by a group selector, earth on the release conductor 22 operates switching relay 1 which extends the connection to the preselected trunk 14, 13 and at armature 2 completes a preselecting circuit for the next available non- numerical switch. Different shelves of group selectors have different first-choice non-numerical switches but corresponding levels of all the selectors on a particular shelf have the same non- numerical switch as first-choice and the preselecting circuit for this switch is closed over a conductor 53 by a shelf relay operated when a switch on that shelf is taken into use or is raised to the appropriate level. When all the trunks accessible to a particular switch are busy, relays 101 complete a chain circuit for relay 104 which opens the preselecting circuit, connects earth over the circuit 105, 102, 11, 21 to mark all idle switches non-selectable, by the group selectors, and may also operate a meter. The invention mav be applied to system in which grading of trunks is employed, and the switches may also be provided with means for automatically freeing themselves from a faulty trunk.
Patent GB-1483573-A (GB)
Title: False-twist texturing machine containing a pneumatic auxiliary device
IPC: B65H51/16
Filed: 1976-01-06
Abstract: 1483573 Threading up devices HEBERLEIN MASCHINENFABRIK AG 6 Jan 1976 [17 Jan 1975] 00319/76 Heading D1F In a texturing machine with a first heater 4, a false twist device 7, a second heater 19 with a through yarn passage 19' a wind-up device 25 and suction means 15, 23 a threading up device is provided comprising a first suction device with a nozzle 11 positionable to draw yarn through the twister 7 e.g. through tube 8 then positionable to locate the yarn adjacent the entry of second heater 19, e.g. in forked member 10, means being provided, e.g. slide valve 16, (Fig. 2), to interrupt suction at nozzle 11 and cooperating with a knife 17 to cut the yarn which is then drawn through heater 19 by a second suction device 21, towards wind-up device 25. Nozzle 11 is on a flexible tube 12 allowing its displacement to thread the yarn through forwarding device 9 and place it adjacent heater 19. The second suction device 21 is also a flexible tube 21 by which the yarn is lead through forwarding device 24 to wind-up 25. Each flexible tube is fastenable to a respective suction main 15, 25 by means of a spring clip, the suction main having parts adjacent each station of the machine.
Patent GB-522069-A (GB)
Title: Improvements in and relating to wearing apparel
IPC: A41B9/02
Filed: 1939-01-05
Abstract: 522,069. Undergarments. BENJAMIN, A. Jan. 5, 1939, No. 455. [Class 141] An undergarment comprises body and crotch portions attached together, the body portion being provided with a normally closed opening which is disposed centrally and vertically of the front of the garment and one of the edges of which is extended. A crotch portion i is joined to a body portion consisting of a rear section a which is joined at its side edges d to. the outer edges of two front sections b, c, the inner edges e of which overlap to form the normally closed fly opening f. The overlapping edge e is provided with an extension g, and the overlapping edge e with a reinforcing tape &c. l.
Patent GB-1469082-A (GB)
Title: Treatment of lithograph printing plates and salts and solu tions for use therein
IPC: G03F7/07
Filed: 1975-01-06
Abstract: The surface of a carrier, e.g. a lithographic plate which contains metallic silver in the form of an image-like pattern, is oleophilised by an exclusively chemical treatment. To this end, it is exposed to an acidic aqueous salt solution which contains a cyanoferrate(III) anion and an organic cation which is able to form a water-insoluble oleophilic complex with oxidised silver. The organic cation is derived from a protonatable nitrogen-containing carbon-hydrogen compound having a (formal) imino group which is in resonance with adjacent groups of the molecule. Said complex former cation is, e.g., an amidine compound having the characteristic group <IMAGE> , especially 2-benzoylimidazoline (R2 = benzyl). A salt which can be used in the treatment solution and causes oxidation of the silver and subsequent complex formation with oleophilisation is obtained by reacting an alkali metal cyanoferrate(III) with the above-defined organic compound in an aqueous medium with the addition of acid. Instead of adding acid, an acid addition salt of the organic compound can be employed.
Patent GB-763891-A (GB)
Title: Improvements in traps for animals
IPC: A01M23/26
Filed: 1955-01-07
Abstract: 763,891. Animal traps. FENN, A. A. Jan. 7, 1955, No. 504/55. Class 5(1). An animal trap comprises a pair of jaws hinged about parallel axes, and a torsion spring or springs which close the jaws when activated by a trip mechanism above which the jaws do not project when the trap is set. The jaw 13 is pivoted about the axis 10 which also carries torsion springs 15 and a bait carrier 29 including a trip mechanism 30. The ends of the springs nearest the trip mechanism are extended as at 18 and 19 and fastened together by loops 26 and 27. The other jaw 22 is hingedly fixed to the extensions 19 at 23 and is adapted to ride over the cranked extensions 17 of the other ends of the springs so that when the catch 31 is set the springs are in tension. A locking catch 33 is provided.
Patent GB-491842-A (GB)
Title: Improved manufacture of pure cellulose from cellulose-containing materials
IPC: D21C3/22
Filed: 1937-01-07
Abstract: In a process for production of cellulose by the decomposition of straw or similar grasses with soda lye in a rotary boiler, the fibrous material is saturated with the minimum of decomposing liquid only a small excess just sufficient to cover the bottom of the boiler being allowed, air is driven out by steam and the charge is steamed with dry steam without increasing its moisture content.  20 kgms. of chaff from corn straws were placed in a 200 litre tumbler boiler.  60 litres of water with 2 kgms. of NaOH and 100 grams of sulphite or hydrosulphite or weak waste lye of corresponding concentration are added.  The boiler is closed and rotated for 1/4 hour.  Dry superheated steam is then supplied.  The boiler valves are then closed, the boiler rotated, the exhaust valve opened and fresh steam blown through for 5-10 minutes.  This is repeated 2 or 3 times for complete removal of air.  Steaming then takes place with dry superheated steam for 1 1/2 hours at about 5 atm.  The temperature is 140-175 DEG  C. The material is then blown out, washed, and again treated with a lye containing 100 grams of sulphite and 1 1/2 kgms. of NaOH to 10 litres of water, and again steamed for 1 1/2 hours. The steam is then blown out, 20 litres of fresh water added and the material washed free from alkali.  In place of 2 stages, the material may be treated once for 2-2 1/2 hours with a lye containing 5 kgms. of NaOH to 60 litres of water.  The yield amounts to 50-55 per cent.
Patent GB-976731-A (GB)
Title: Improvements relating to apparatus for stereo-photogrammetry
Inventor: PHILLIPS ARTHUR RAYMOND
IPC: G01C11/00
Filed: 1962-01-05
Abstract: 976,731. Photogrammetric plotting instruments. FAIREY SURVEY Ltd. Jan 7, 1963 [Jan. 5,1962], No. 557/62. Heading G1F. In a photogrammetrical stereo-plotting machine an optical viewer 30, Fig. 1, is mounted on the stylus support 23 so that an image of the view from above of the stylus point 22 and of the plotting table surface in its immediate vicinity is directed towards the operator manupulating the traversing controls 16 at the main frame 10. The viewer 30 may comprise a pair of side plates cupporting a lens 35, Fig. 2, and two mirrors 33, 34, mirror 34 being manually adjustable to suit the operator's line of sight. The viewer 30 is pivotally mounted on the stylus support 23 about the vertical axis of a shaft 38 and is retained in its set position by a screw 40. A lamp 52 attached to support 23 illuminates the stylus 22 and its immediate vicinity.
Patent GB-117039-A (GB)
Title: Improvements in Dyeing Textile Fabrics and in Apparatus therefor.
Inventor: GLAISTER THOMAS
IPC: D06B3/10
Filed: 1918-01-10
Abstract: 117,039. Glaister, T., and Hoyle, J. K. Jan. 10, 1918. Impregnating fabrics in long lengths.-Relates to dyeing-apparatus and consists in submerging the fabric in the dye in a dye box and thence passing it between a pair of pressure rolls upon the lower of which dye is sprayed, said lower roll also forming one side of the dye box. Fabric u is led over tension bars v, beneath a bar &c. w in a dye box o. and thence between a pair of pressure rolls i, j. The roll i forms one side of the dye box o which is adjustable relatively thereto and provided with a rubber lip o<1> to make a liquid-tight joint. Dye liquor is supplied from a a reservoir r heated by a steam pipe s to a pipe q in the dye box o, and is sprayed thereby upon the roll i. The fabric after leaving the pressure rolls passes to a driven roll x and is plaited down by known mechanism z.
Patent GB-936144-A (GB)
Title: Disc brakes
Inventor: BUTLER HENRY JAMES
IPC: F16D65/14
Filed: 1959-01-07
Abstract: 936,144. Disc brakes. DUNLOP RUBBER CO. Ltd. Jan. 1, 1960 [Jan. 7, 1959], No. 574/59. Class 103 (1). A disc brake has an expanding mechanism positioned between a thrust member and a pad assembly, the thrust member being supported on a non-rotatable housing by a pair of screwthreaded members which are rotated by a spring to advance the thrust member toward the disc. The housing 4 supports a fixed and a slidable pad 5 on either side of an axially slidable disc 1, the slidable pad being detachably secured to a guide plate 6 mounted in guides 7 in housing 4, Fig. 2. A lever 8 abuts pad 6 and has recesses complementary with recesses in a thrust member 9 spring-loaded against balls 10 in the recesses. Rotation of lever 8 causes pad 5 to engage and move disc 1 against the fixed pad, and a member 11 bolted to housing 4 retracts the movable pad 5 a predetermined distance on brake release. The automatic adjuster comprises a screw 12 secured to member 9 and passing through a block 13 secured to or integral with the housing 4. A nut 14 has teeth 15 engaging a rack 16 biased by a spring 17 to rotate the nut 14 and move screw 12 and member 9 toward the disc, a leaf spring, Fig. 3 (not shown), biases the rack against the teeth which are such as to permit movement of the rack 16 to retention spring 17 without rotating nut 14. As wear takes place, on brake release, the rack 17 rotates nut 15 to take up slack between member 6, 8, 9, the spring 17 being of insufficient strength to deflect member 11. In Fig. 3 (not shown), the brake-applying linkage includes a lost-motion connection with the rack 16 to retension the spring 17 at every brake application. A torsion spring anchored to an elongated nut and to a cover fixed to housing 4 is used in Figs. 4 and 5 (not shown), to move the screw 12. Specification 883,417 is referred to.
Patent GB-579855-A (GB)
Title: Improvements in or relating to the production of acrylic acid and its esters
Filed: 1944-01-12
Abstract: Acrylic acid is prepared by reacting vinylidene chloride with formaldehyde or a polymer thereof in the presence of aqueous sulphuric acid.  An ester may be prepared either by carrying out this reaction in the presence of an alcohol or by esterifying the reaction mixture.  In the examples: (1) a slurry of paraformaldehyde in water is added gradually to a mixture of vinylidene chloride, water and sulphuric acid with vigorous stirring.  The reaction mixture is steam distilled preferably into a polymerization inhibitor such as thymol, to give aqueous acrylic acid.  Polymerized acrylic acid is obtained from the aqueous solution by adding ammonium persulphate and distilling off water; (2) a mixture of formaldehyde, water and sulphuric acid is placed in a vessel fitted with a reflux device and heated above the boiling point of vinylidene chloride.  Vinylidene chloride is then added gradually and the reaction mixture steam distilled; (3) a reaction mixture is obtained as in example (2), and after adding a little copper oxide to inhibit polymerization the vessel is heated, while ethyl alcohol is added, so that the product distills off continuously; (4) a reaction mixture is obtained as in example (2) and divided between three vessels connected in series. Soda ash is added to each and then alcohol is added to the first while all three are heated so that the product from one passes into the next and the final product distils off from the third. This product is refractionated preferably after treating with a stabilizer such as hydroquinone; (5) crude methylacrylate is prepared by the process of example (3) using methyl alcohol in place of ethyl alcohol.  The product is washed with salt solution, treated with calcium chloride and distilled; (6) n-butylacrylate is prepared in a similar manner by esterifying with n-butyl alcohol.  The aqueous solution of acrylic acid prepared by this process may be used directly in the production of interpolymers with, for example, vinyl chloride.
Patent GB-1433642-A (GB)
Title: Polyisocyanurate composition related products and processes
IPC: C08G18/09
Filed: 1974-01-07
Abstract: 1433642 Laminates CELOTEX CORP 7 Jan 1974 [11 Jan 1973] 629/74 Heading B5N [Also in Division C3] A laminate in which the core comprises a polyisocyanate foam may be prepared using an apparatus as shown in the accompanying drawing. The foam-forming ingredients (see Division C3) are passed through lines 20, 21 and 22 as well as lines 23, 24 and 25, to a mixing head. A lower substrate material is pulled from roll 30 and an upper substrate material from roll 31 over idler rollers such as 46 and 47 to the nip between metering rolls 32, 33. An even amount of foam-forming mixture can thus be maintained upstream of the nip between the rolls and the composite structure comprising a lower substrate 51, an upper substrate 52 and a core 53 is then passed into oven 35 where the foam is allowed to form. The compositie structure 55 then leaves the oven, passes between the nip of pull rolls 38, 39 and is cut by knife 44 into individual panels 57, 57<SP>1</SP>. The substrate material may be paper.
Patent GB-1434861-A (GB)
Title: Semi-conductor bodies
IPC: H01B1/00
Filed: 1974-01-08
Abstract: 1434861 Semi-conductor body CHAMPION SPARK PLUG CO 8 Jan 1974 [8 Jan 1973] 00849/74 Headings C7A and C7D A sintered semi-conductor body, suitable for use in a jet-engine igniter, comprises:- Ca and/or Mg oxide 6-15% the balance being Si O 2  wherein the SiC has a median particle size of 6-12Á with all particles being in the size range 1-25Á and the final body has an apparent porosity of 10-25%. The body may be made by mixing 75-85 parts by weight (pbw) Si C particles in the above size range, 8-15 pbw Al 2 O 3  with a particle size finer than 10Á and, calculated as oxide, 5-15 pbw of Mg and/or Ca oxide, carbonate and/or hydroxide; shaping the mixture; firing it in air at 2050- 2100‹F for long enough to oxidize Si C to give 25-30% Si 02; and then firing the body at 2450- 2750‹F in inert gas.
Patent GB-156804-A (GB)
Title: Improvements in bituminous roofing
IPC: D06B3/10
Filed: 1921-01-07
Abstract: Bituminous roofing sheets or shingles are coated on one side with a non-drying tacky waterproof cement during manufacture.  A suitable non-drying cement consists of 90 per cent castor oil and 14 per cent gilsonite; other oil such as lubricating or paint oil may be used, and also other asphaltum or coal tar, resin, stearine pitch, petroleum asphalts, &c. in appropriate proportions.
Patent GB-1217821-A (GB)
Title: Sealing devices
Inventor: JONES PETER ALAN
IPC: F16J15/18
Filed: 1969-01-07
Abstract: 1,217,821. Stuffing-boxes. BRITISH TITAN PRODUCTS CO. Ltd. 29 Sept., 1969 [7 Jan., 1969], No. 932/69. Heading F2B. Sealing means for a shaft 7 extending through a member 4 comprises a cylindrical stuffing-box 1 detachably secured, as by bolts 3, to the member 4 and containing packing 13, a bush or flange 6 between the member and the packing and within the stuffing-box and a gland 9 which is secured to the stuffing-box by means, e.g. bolts 15, operative to move the gland to compress the packing as in Fig. 1 or, alternatively; when the stuffing-box is detached from the member, to withdraw the stuffing-box over the gland as in Fig. 2 to thereby expose the packing for eromination and/or renewal. The flange 6 may be integral with the member 1 and sealed to the stuffing-box by an 0-ring 8. The packing rings 13, which may be of asbestos or woven polypropylene or p.t.f.o., are separated into two sets 11, 12 by a lantern ring 14.
Patent GB-805492-A (GB)
Title: Finishing leather with resin dispersions
IPC: D06P3/32
Filed: 1955-01-12
Abstract: 805,492. Coated leather. IMPERIAL CHEMICAL INDUSTRIES, Ltd., COLE, G. H. T., and GUEST, D. J. Dec. 21, 1955 [Jan. 12, 1955], No. 948/55. Class 140. Leather is coated with one or more coats of a plasticized aqueous dispersion of a vinyl chloride-vinyl acetate copolymer wherein the plasticized polymer dispersion is prepared by incorporating emulsified plasticizer into an aqueous dispersion of the polymer at temperatures from 80 ‹ to 90 ‹ C., e.g. as in Specification 766,654, [Group IV (a)]. The proportion of vinyl acetate in the copolymer may be from 15 to 40 per cent by weight thereof. Suitable plasticizers are dimethyl, dibutyl and dioctylphthalate, tricresyl phosphate, and esters of epoxystearic acid. Specified stabilizers and emulsifiers are white lead, calcium, cadmium and lead stearate, organic epoxides, diphenylthiourea, dibutyl tin dilaurate, and anionic and non-ionic emulsifying agents or mixtures thereof. Pigments, e.g. turkey red oxide, hydrated oxide of iron, titanium dioxide, other synthetic resins, e.g. #-ethoxyethylmethacrylate polymer, casein, and other materials normally used in the finishing of leather may be added to the plasticized copolymer dispersion.
Patent GB-600470-A (GB)
Title: Improvements in or relating to the catalytic conversion of hydrocarbons
IPC: B01J21/20
Filed: 1945-01-11
Abstract: Hydrocarbon conversion catalysts composed of refractory oxides supporting boric oxide are stripped of absorbed and/or adsorbed hydrocarbons, prior to regeneration, by using steam containing boric acid vapour.  The steam is charged with boric acid either by adding the latter to the water being fed to the boilers, or by separately vaporizing the boric acid and then introducing the vapours into the steam.  It is preferable that the steam be substantially saturated with boric acid.  The treatment ensures that the boric oxide in the catalyst is not removed during stripping.  The refractory oxide base may be titania, alumina or zirconia; and inert materials such as clays, kieselguhr and pumice may be added.  Various methods of preparing the catalysts are given, but the boric oxide is preferably added in situ, i.e. the sorptive mass is charged to the plant and the steam-boric acid vapour then passed in to build up the proper boron oxide content. The hydrated alumina known as Böhmite impregnated with a minor proportion by weight of boron oxide forms an active catalyst. Specification 587,161 is referred to.
Patent GB-157120-A (GB)
Title: Improvements in and relating to insulating substances
IPC: C08L1/00
Filed: 1921-01-08
Abstract: 157,120. Siemens Schuckertwerke, Jan. 8, 1918, [Convention date]. Addition to 156,527. Void [Published under Sect. 91 of the Act]. Plastic compositions containing cellulose esters. -Cellulose derivatives, particularly esters, such as nitro-cellulose, acetyl cellulose, and viscose, and ethers, such as methyl, ethyl, propyl, butvl, and benzyl cellulose ethers, are mixed with non- hygroscopic, liquid or plastic insulating substances such as waxes, oils, fats, resins, gutta-percha, &c., with or without bitumen and filling ingredients. Castor oil, either treated with hydrogen or not, is stated to be a suitable insulating ingredient.
Patent HK-49186-A (HK)
Title: Method and apparatus for controlling the reading of information from an information storage medium
Inventor: WINSLOW S JOHN
IPC: G11B19/28
Filed: 1986-07-03
Abstract: Method and apparatus for controlling the speed of an information storage medium, such as a disc-shaped record carrier (11). relative to a device for recovering information recorded thereon. The disc includes a plurality of substantially parallel information tracks (15) arranged in a spiral or in concentric circles. and information recorded thereon includes a pilot signal having a predetermined frequency. The apparatus includes means (37) for comparing the phase angle of the recovered pilot signal (57) with the phase angle of a locally generated reference signal (33), to produce an error signal (43) for controlling the angular velocity of a spindle motor (17) that rotates the disc. The pilot signal includes an equal integral number of cycles on each information track, so its phase angle is aligned on adjacent tracks and the apparatus can continue to operate even when the information recovering device is traversing the disc from one track to another or is not critically positioned with respect to an individual information track.
Patent HK-56990-A (HK)
Title: Posterior chamber intra-ocular transplant device
Inventor: CLAYMAN HENRY MARK
IPC: A61F2/16
Filed: 1990-07-26
Abstract: An intra-ocular implantable device and a method of surgically implanting such device in which upper and lower haptic loops (22, 24) are attached to a lens (20) on opposite sides thereof for contacting the ciliary sulcus (or capsular bag) to position the lens in the posterior chamber. The lens (20) has a dimension in one transverse direction across the lens greater than its dimension in a perpendicular direction. The lower loop (24) has a stiffness greater than the upper loop (22) and the lens (20) has a vertical dimension greater than its horizontal dimension to ensure proper positioning of the lens. The lens (20) has a rear convex surface for facilitating discission after implantation and optical advantages. Upper and lower bores (30, 32) in the front surface of the lens extend at an angle to the vertical of, for example, 15<o> to 20<o> to permit fixation by a fine spatular for manipulation of the device during implantation. The edges of the lens between the loops include straight line portions (26, 28) for guiding the device during insertion and requiring minimum incision.
Patent HK-62489-A (HK)
Title: Resistor compositions,methods of making them and articles comprising them
Inventor: MARTIN FRANK WAYNE
IPC: H01C17/06
Filed: 1989-08-03
Abstract: This invention provides unique resistor compositions. These compositions contain solid long chain phenolic resin, liquid short chain phenolic resin and a mixture of carbon black and graphite particles dispersed therein. The combination of these elements allows for resistor compositions that are capable of withstanding high humidity conditions without significant changes in resistivity and which are capable of low ohmic values in the absence of metals. Also provided is a method of producing these compositions.