baber/WOPTO huggingface dataset:
Patent GB-873263-A (GB)
Title: Process for preparing condensation products of polyvinyl alcohol and carbonyl compounds
Inventor: KAORU INOUE SHOJIRO IWAI HIROZ
IPC: C08F8/28
Filed: 1959-08-26
Abstract: Condensation products of polyvinyl alcohol with one or more carbonyl compounds selected from aldehydes and ketones are prepared in an aqueous phase in the presence of an acid catalyst by adding a proportion of said carbonyl compound(s) to the aqueous solution of polyvinyl alcohol at a temperature above 10 DEG C., said proportion being insufficient to cause the resulting condensation product to precipitate, the remainder of said carbonyl compound(s) being added at -6 DEG C. to +20 DEG C. and at a lower temperature than that at which the first stage of the reaction is carried out, in order to complete the condensation reaction and precipitate the resulting condensation product.  The carbonyl compound may be propionaldehyde, valeraldehyde, acetaldehyde, caproaldehyde, butyraldehyde, heptaldehyde, citral, formaldehyde, caprylaldehyde, acrolein, crotonaldehyde, bezaldehyde, salicylaldehyde, furfural, pelargonic aldehyde, acetone, cyclohexanone, acetophenone, or p-nitro or p-chlorobenzaldehyde.  The polyvinyl alcohol may contain some residual ester groups and the difference of temperature between the two stages is preferably over 5 DEG C.  The acid catalyst may be hydrochloric, sulphuric, phosphoric, boric, acetic, oxalic or citric acids or acid salts such as ammonium chloride, aluminium or zinc chloride or sodium bisulphate.  The carbonyl compound used in the second stage may be different from that in the first stage and mixtures may be used.  The carbonyl compound may be added incrementally in each stage.  The product is in the form of granules or a fine powder.
Patent GB-937216-A (GB)
Title: Cold setting cement compositions
IPC: C04B28/26
Filed: 1961-08-14
Abstract: A cold setting cement composition comprises a particulate filler contributing the major proportion of the solids content of the cement, an aqueous silica sol as a binder for the filler, from 0,2% to 15% by weight based on the weight of filler of a solid alkali metal silicate as a setting agent for the silica sol, the silicate having an alkali metal oxide to silica mole ratio within the range from 1 : 1 to 1 : 4,2, and 0,25% to 1,0% based on the combined weight of filler and setting agent of a polyvinyl alcohol obtained by hydrolysing polyvinyl acetate, preferably to an extent of 75% to 100%.  The particulate filler (e.g. silica, silicates, various metal oxides) is one which is insoluble in water and substantially inert to the silica sol binder.  The silica sol is one which is normally precipitated as a gel by alkalis or salts, and is used in an amount sufficient to bond the filler into a coherent mass.  The polyvinyl alcohol, a 4% aqueous solution of which has a viscosity between about 4 and 60 centipoises at 20 DEG C., is added in solid form, and is preferably blended with either the filler or silicate setting agent, or a mixture of the two.  The preferred filler material is a combination of silica sand and quartz flour, the ratio of powder to liquid in compositions containing this filler being preferably from 3, : 1 to 3,7 : 1.  In examples, the filler employed is a mixture of quartz, sand and clay; the silica sol binder contains 30% SiO2 and less than 1% Na2O; the setting agent has the composition Na2O 3,2 SiO2.  Other fillers specified are beryl, mullite, fluospar and silicon carbide. Specification 816,233 is referred to.
Patent GB-426606-A (GB)
Title: Improvements in or relating to honey comb section boxes
IPC: A01K47/02
Filed: 1934-10-12
Abstract: 426,606. Bee - keepers' appliances. HANSON, W. C., Route 9, Box 88, South Hills Branch, Pittsburg, U.S.A. Oct. 12, 1934, No. 29295. [Class 5 (ii)] A honey-comb section comprises a pair of rectangular complemental members 11, 12 arranged in edge to edge relationship, adjacent edges of said members being provided with interlocking projections 17 and recesses 16, a sheet of foundation wax being interposed between said members and clamped in position therein by the interlocking projections and recesses. Each member 11, 12 is formed as a flat strip dovetailed at 13, grooved at 14 and cut away at 15 to provide beeways. The recesses and projections on one wall are staggered with respect to those on the other wall of the same member. An assembling device for the sections comprises a table 20, Fig. 3, having longitudinal guide members 21 between which a series of members 11 is placed, such series being then locked in position against a stop member by means of a look nut 24. A sheet of foundation wax is placed over the members 11, a corresponding number of members 12 being then placed in position and locked therein by means of a lock nut 27. A cover 28 pivoted on the table 20 is then brought down on the members 12 and struck to cause interlocking of the corresponding projections and recesses, the staggering of which causes a shearing of the wax between the sections.
Patent GB-336768-A (GB)
Title: Improvements in or relating to illuminated box signs for advertising purposes
IPC: G09F19/10
Filed: 1929-09-27
Abstract: 336,768. Gossart, F. Sept. 27, 1929. Signs; figures or models.-A sign comprises a curved reflector 9 located behind a front panel 3 having a transparent or translucent representation 6 of a vessel containing liquid, the side and bottom edges of the reflector conforming to the outline of the representation and the top part being open and located beneath an electric lamp 12. The remainder of the panel 3 is less translucent than the part 6, and may carry a translucent representation 6<c> of overflowing froth and advertisements illuminated by lamps 5. The interior of the reflector 9 may be suitably coloured to represent the liquid, and a further reflector may be provided above the lamp 12.
Patent GB-1483481-A (GB)
Title: Bellows sealed valve assemblies
IPC: F16K41/10
Filed: 1975-08-18
Abstract: 1483481 Valves HOPKINSONS Ltd 18 Aug 1975 [2 July 1974] 29390/74 Heading F2V In a valve having a spindle 15 sealed by two bellows 24, 25 each attached at one end to a respective adaptor 19, attached either to the spindle or to the valve body respectively, and at the other end to a bellows guide bush 21 slidable on the spindle, limit devices are provided to ensure equal distribution of axial movement between the bellows on opening and closing of the valve. The limit devices take the form of split tubes having T-shaped heads engaging in cut-outs in the other tube, one tube being attached to a bellows adaptor and the other tube to a bellows guide bush. Three, or more, bellows may be provided in which case two, or more, guide bushes will be provided, each bush and adaptor being connected to a split tube with a T-shaped head engaging an adjacent tube.
Patent GB-716229-A (GB)
Title: Improvements relating to devices for feeding flexible sheet material
Inventor: TAYLOR MAURICE KENYON
IPC: B65H59/22
Filed: 1950-05-09
Abstract: 716,229. Feeding webs. FERRANTI, Ltd. May 8, 1951 [May 9, 1950], No. 29441/53. Divided out of 715,013. Class 100(1) A device for changing the feeding speed of a ribbon of electrically in. sulating material to a predetermined value, in. cluding the value zero comprises a feed control member 15 the outer part 16 of which is con. ductive and having the speed of movement of predetermined value, an electrically conductive surface of complementary shape arranged tc co-operate with the member 15 so that the ribbon passes between the member and the complementary surface and means for applying a voltage between the surfaces to effect slip free engagement between the ribbon and the member. As shown the complementary surface is formed by an endless band 30 which is earthed. To change the feed speed to zero a stationary member is used in conjunction with an earthed flexible strip secured between fixed clamps one of which is earthed.
Patent GB-285178-A (GB)
Title: Improvements in pocket knives
IPC: B26B11/00
Filed: 1926-11-22
Abstract: 285,178. Brown, H. Nov. 22, 1926. Pocket, pen, toilet, and like knives.-A pocket knife has a tube or tubes formed on or attached to its handle for the reception of other articles such as a pencil, pipecleaner, &c., the tubes being formed by bending metal plates attached to or forming the sides of the handle. The drawing shows in section the handle c of one form of the invention in which two open-jointed tubes a, b and an additional space d are provided along the back of the handle, the open joints rendering the tubes springy.
Patent GB-228295-A (GB)
Title: Improvements in automatic and semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1923-11-22
Abstract: 228,295. Relay Automatic Telephone Co., Ltd., and Johnson, B. B. Nov. 22, 1923. Automatic exchange systems.-In a small private automatic exchange in which all the subscribers are located in the same building, in the event of a calling party obtaining no reply from the called party, he may release the connection by hanging up momentarily, and then by dialling a special number, connect himself to an auxiliary circuit which controls audible or visible code signals at various points of the building. The wanted party is called either by means of a key at the calling substation or by means of a special recorder responding to further dialled digits, and may connect himself to the other end of the auxiliary circuit from any telephone by dialling a special answering number. The invention is described with reference to an exchange for 100 subscribers of the type shown in Specification 205,861, in which connections are established entirely by relays. The apparatus shown in the lower part of Fig. 6 is inserted between the subscriber's line, Fig. 1, and the feed-relay group. First arrangement, Fig. 6. When the single digit 6 is dialled, the recorder closes a marking circuit 18<a>, operating relay CCM. Relay ACR energizes over a marking circuit 20<a>, and switches the calling line over from the feed-relay group to the auxiliary circuit (upper part of Fig. 6). Line relay CCA energizes over differential relay CCS, lighting busy lamp AE and closing a holding circuit 22 for relay ACR in series with relays LC, OTC, which is completed before the latter are released at the feed-relay group. The calling subscriber now presses a key K1 a number of times according to a code, earthing the A-wire and unbalancing relay CCS, which energizes and operates buzzers BS. The points A2, B2 are wired to a spare subscriber's equipment, so that the wanted subscriber may connect himself to the auxiliary circuit in the usual manner by dialling the answering number at any telephone. Second arrangement, Figs. 6, 7 and 8. Relay ACR energizes as before and connects up line relay AX, Fig. 7. Relay GX energizes, closing a holding circuit 26 for relay ACR and circuit 25 for relay RR, which connects up a modified recorder, Fig. 8. Relay PX energizes and prepares the recorder in the usual way. Upon dialling, the first de-energization of relay AX closes circuit 27a for relay FIX which locks in circuit 25a in series with relay BYX, and impulses are then repeated to the recorder by relays AX, RR. The. marking relays U, I interact in the usual manner, and assuming the code number of the wanted subscriber to be 7, relays I2.7, U6C are energized. Relay RGX falls back and relay C7 energizes in circuit 34, connecting up buzzers BR and a code lamp G of a distinctive colour. The wanted subscriber connects himself to the auxiliary circuit,. and relay RTX energizes, operating the ringing cut-off relay in the feed-relay group used by the wanted subscriber and opening circuits 25a, 29 to release the recorder and disconnect relay C7.
Patent GB-1112775-A (GB)
Title: Gas lighter
IPC: F23Q2/16
Filed: 1965-07-12
Abstract: 1,112,775. Gas lighters. A. RACEK. 12 July, 1965 [14 July, 1964], No. 29486/65. Heading F4F. A gas lighter has a pot-shaped casing part 2 in which is disposed a throttle communicating with the fuel reservoir 1 by a duct 16, and pushed against the end of the duct remote from the throttle is an absorbent, e.g. felt, disc 17. This disc may be retained in place by friction or by a disc 18 having peripheral gripping teeth 19. The throttle comprises a screw member 4 containing a spring loaded hollow valve stem 5 having at its lower end a plug 6 resting on a bored cup-shaped valve disc 8. Situated between the valve disc and the duct 16 are a porous throttle element 11, a rigid disc 18 and a second absorbent disc 14. In the embodiment of Fig. 2 (not shown) the absorbent disc 43 is retained in place between a groove 48 in the lighter casing and the flint tube 45. An elastic disc 37 in the snuffer cap 22 closes the burner tube 34. If the gas reservoir is of circular cross-section then the absorbent disc is preferably of hexagonal section having arcuate nicks of alternating direction of curvature, Fig. 4 (not shown), such that a larger part of its surface area is in contact with the liquid gas.
Patent GB-665966-A (GB)
Title: Improvements in motor cycle rear registration number plates
IPC: B60Q1/56
Filed: 1949-11-19
Abstract: 665,966. Signs. ONSLOW, C. G. VALE-. Nov. 3, 1950 [Nov. 19, 1949], No. 29644/49. Class 3(ii) A motor cycle rear number plate comprises an element 10 for the registration number which is illuminated by means 22 and which has a mounting 13 extending rearwardly, the rear side of the mounting being shaped to conform to the configuration of the mudguard so that the element 10 is vertical when the mounting is attached to the mudguard at the desired height by means 17. The mounting 13 is a U-shaped member which is secured to the mudguard by brackets 17 and to the lower end of which a plate forming the element 10 is hingedly secured. Lamps 22 are fixed to a bracket 18 at the top of the housing and protrude into a lamp glass 24 which is fixed in an opening in the plate 10. The bottom surface of the lamp glass is clear and the rear surface red. The plate 10 is held vertically by a detachable bolt which screws into a nut welded to the bracket 18. One of the lamps 22 may be connected as a stoplight.
Patent GB-152674-A (GB)
Title: Improvements relating to relay transmitters
IPC: G05D3/12
Filed: 1920-10-20
Abstract: 152,674. Sperry Gyroscope Co., (Assignees of Zobel, M. L.). Oct. 20, 1919, [Convention date]. Systems controlling travel for a fixed distance or number of revolutions.-Relates to relay transmitters for transmitting the movement of a master instrument to one or more repeater instruments, as in fire-control apparatus or apparatus for repetition of the movements of a master gyroscopic compass in a number of repeater compasses, the latter application being described. The apparatus is of the kind adapted to transmit movements of the master compass other than the limited " hunting " or oscillation of the card with respect to the lubber ring. Provision is made for adjustment of the limits of the non-transmitted movement, and make-and-break contacts are used in place of the usual sliding contacts. A motor 1, the pole windings 2 of which are energized in known manner under control of the movements of the compass card so that the movements of the card, including " hunting," are copied by the armature 3, has a spur-wheel 12 meshing with a wheel 9. A second motor 5 has a pinion 6 which meshes with an idler 14 serving to drive a wheel 10, and also a wheel 37. Wheels 9, 10 form two members of a differential gear through which a common shaft 8 is driven, shaft 8 having a wheel 16 meshing with a mutilated wheel 17 on a shaft 19. Shaft 19 has two cams 20, 21 controlling the opening and closing of contacts 28, 29, these contacts being normally open, and one or other of them closed according to the direction in which cam-shaft 19 is rotated. Motor 5 has two oppositely wound field windings, respectively controlled by contacts 28, 29 and determining the direction of rotation of the motor shaft. Movement of armature 3 causes rotation of cam-shaft 19 through wheels 12, 9, differential gear, shaft 8, and wheels 16, 17, and if the rotation is of sufficient extent, one or other of the contacts 28, 29 is allowed to close, starting motor 5 which rotates shaft 19, through wheels 14, 10, differential gear, shaft 8, and wheels 16, 17 so as to open the contact which had been closed, and stop the motor 5. The form of the cams, and the width of gap at open contacts 28, 29 which can be adjusted by screws 43, allows rotation of shaft 19 a limited amount in either direction without closing contacts 28, 29. Wheels 17 may have a projection 34 adapted to engage stops 35, 36 in the event of motor 5 lagging, so that shaft 8 is arrested, and motor 1 helps to speed up motor 5 through the differential gear. Movement of motor 5 is communicated through wheels 6, 14, 37 to a shaft 38 having cams 39 controlling contacts 41, which in turn control the movements of the repeater instruments (not shown). Specification 110,046 is referred to.
Patent GB-173644-A (GB)
Title: Improvements in or relating to a process and to apparatus for dehydrating hydrocarbon emulsions and/or distilling hydrocarbon oils or their products of distillation
IPC: C10G33/06
Filed: 1920-10-21
Abstract: 173,644. Asiatic Petroleum Co., Ltd., and Cameron, W. Oct. 21, 1920. Hydrocarbons, distilling; evaporating by contact with hot liquid.-In dehydrating crude petroleum emulsions, particularly those containing salt water, and in distilling hydrocarbon oils, a body of oil is continuously circulated from a vapour-separating chamber 3 by a pump 2 through a heater 4 and back to the chamber 3, and the emulsion or oil to be treated is injected by a pump 1 into the pipe 6 between the heater and the separating chamber. Vapours are withdrawn by a pipe 8. After removal of tha water, the salts float in suspension in the oil. Portions of the oil may be withdrawn through a pipe 14.
Patent GB-465054-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J61/10
Filed: 1935-10-29
Abstract: 465,054. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and RUFF, H. R. Oct. 29, 1935, No. 29862. Drawings to Specification. [Class 39 (i)] [Also in Group XXXVI] A magnetic control coil for a gaseous discharge device is of aluminium wire or strip insulated with oxide which may be formed by the anodizing process, the turns of the coal being separated prior to the oxidizing treatment and subsequently bound back into the form of a completed coil. The coils are bound by a wrapping of asbestos tape held by wire and these materials may be preheated to bake out gases or vapours. Specification 444,400 is referred to.
Patent GB-262583-A (GB)
Title: Improvements relating to carpet sweepers
IPC: A47L11/33
Filed: 1925-11-26
Abstract: 262,583. Iles, A. S. Nov. 26, 1925. Carpet-sweepers.-A pair of bellows a constituted by sloping stationary lower boards h and an upper board c rocked about its centre by a link e and crank disc g draw dust-laden air from the chamber containing the dust pans and rotating brush l through a screen j.
Patent GB-1371453-A (GB)
Title: Explosive blasting composition
IPC: C06B25/08
Filed: 1972-06-27
Abstract: 1371453 Explosive compositions IRECO CHEMICALS 27 June 1972 [28 June 1971] 29957/72 Heading C1D A blasting composition suitable for detonation under high pressure and temperature comprises at least 40% by weight of a high explosive, nitrated, aromatic organic compound, for example TNT, at least partially dissolved in a liquid comprising nitrobenzene, mononitrotoluene, and/or dinitrotoluene. The composition may also include RDX or HMX. Finely flaked aluminium may be added and also a thickening agent such as finely-divided silica or alumina. Other additives referred to are boron, magnesium, silicon, gilsonite, and coal. The explosive is in fluid or slurry form and may be pumped to the bottom of deep wells. Alternatively the mixture may be heated to an all-liquid state before pumping, so that on cooling TNT crystallizes out and increases the sensitivity of the blasting composition.
Patent GB-406799-A (GB)
Title: Improvements in or relating to lost motion toggle devices for transmitting movement
IPC: D06F71/06
Filed: 1932-10-26
Abstract: 406,799. Ironing-presses. RICHARDSON, J. R. S., and WHITAKER, Ltd., R. G., Portland Road, Kingston-on-Thames. Oct. 26, 1932, No. 29965. [Class 138 (ii).] Force is transmitted from a two-armed lever or treadle 6, 7 to a lever 13 pivoted at 18 to the frame 1 of an ironing-press by means of a link 9 pivoted at 8 to the arm 7. A roller 11 is carried by the link and moves in a slot or recess 17 in the lever 13. When the press is open the roller 11 is in the position 11<a> and at the end 12<a> of the slot. On depression of the treadle 6 the roller is raised, and with it the lever 13. When the slot reaches the horizontal the roller moves to the other end thereby increasing the leverage and increasing the angle of the toggle. The arm 7 is preferably a pivot bolt 14 and may be adjusted in length. The slot 12 may be closed in by an adjustable cover plate 15.
Patent GB-432868-A (GB)
Title: Improvements in or relating to elastic landing gear for aeroplanes
IPC: B64C25/38
Filed: 1933-10-30
Abstract: 432,868. Aircraft landing - gear. FRIEDEL, M., 202, Czerniakowska Street, DABROWSKI, J., 4, Danilowiczowska Street, GUTTMANN, J., 3, Holowki Street, and DWORAKOWSKI, K., 3, Holowki Street, all in Warsaw. Oct. 30, 1933, No. 30092. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 3, 1934]. [Class 4] Aircraft landing-gear includes links 1, 2, 3, 4 and 5 articulated together as shown, and a further link 11, which incorporates a shockabsorber 12, is articulated to the links 4, 5 and to the link 1 which incorporates a shockabsorber 12, is fixed or hinged to the fuselage or wing, and is inclined forwardly. Leading and trailing wheels 8, 9 are provided, a carriage 6 carrying wheels 7 is articulated on the link structure and an elastic endless band passes over the wheels. The landing-gear may have spring-controlled lateral movement about the axis of the link 1. In a modification, the links 4, 5 are omitted, the link 11 being articulated to the link 3 at one of a number of positions intermediate its ends. In a further modification, a shock-absorber 12<1>, Fig. 7, is interposed across the diagonal of a quadrilateral formed by links 1', 2<1>, 31 and 11<1>, a carriage 61 carrying wheels 7 being articulated on the pivot of the links 2<1>, 31. Two such constructions may be placed adjacent each other on each side of the aircraft. In a further modification, the undercarriage is built up of two systems 6<11>1 and 6<11>2, Fig. 10, of interarticulated links mounted on the aircraft through links 11<11>, 1<11>. The shock-absorbers may be located at the hinge connections of the links.
Patent GB-648089-A (GB)
Title: Improvements in and relating to trawling gear
IPC: A01K73/02
Filed: 1948-11-19
Abstract: 648,089. Fishing. HARTNELL, A. E. C. Nov. 19, 1948, No. 30137. Convention date, Oct. 21. [Class 48] In trawling gear in which dan lenos 7, 8 are attached to the wings 21. 22 of the net by leg ropes 9, 10, 12, 13, and in which at least two kites or lifting boards 15, 18 are attached through their tails to the headline 11 of the net, at least one kite 18 is attached through transverse bridles 19, 20 to the leg ropes at points behind the dan lenos, or to points behind the foremost dan lenos if a plurality of dan lenos is used at each side of the net. The foremost kite 15 is attached by transverse bridles to the dan lenos 7, 8.
Patent GB-447658-A (GB)
Title: Electro-magnetic motor
IPC: H02K33/14
Filed: 1935-11-01
Abstract: 447,658. Reciprocating motors. RIMEL, K., 10, Schlosshoferstrasse, Vienna. Nov. 1, 1935, No. 30183. Convention date, Dec. 14, 1934. [Class 35] In a motor wherein two or more reciprocating cores drive a crank-shaft, a fly-wheel being mounted on or coupled to this shaft, springs are connected to the crank or eccentric and at their other ends to fixed points in such manner that they are fully tensioned when the corresponding core commences to penetrate its coil. In the form shown, the springs 17, 18 are fully tensioned at the commencement of the attraction stroke of the cores 4, 3 respectively, and the solenoids 1, 2 are energized alternately by the commutator 13.