baber/WOPTO huggingface dataset:
Patent GB-746193-A (GB)
Title: Method of producing organo-silicon polymers
IPC: C08G77/48
Filed: 1953-10-14
Abstract: Organosilicon polymers, consisting essentially of Si-O-Si units but which may contain Si-H and Si-Si units, are made by hydrolysing organosilanes containing at least one Si-H and/or Si-Si unit with liquid mixtures of alcohol, water and ammonia, and condensing the resulting products if desired by heating.  The silanes used contain, in addition to SiH and/or Si-Si units, organic radicals such as alkyl, chloroalkyl and aryl and may also contain hydrolysable radicals such as Cl, OR and OCOR.  Alcohols specified are methanol, ethanol, propanol, ethylene glycol and glycerine.  In one embodiment water and/or ammonia is added to an alcoholic solution of the silane(s), e.g. ammonia gas, with or without a diluent such as nitrogen, may be passed into an aqueous alcoholic solution of the silane(s), or water may be added to an alcoholic solution of the silane saturated with ammonia gas. Where the silane contains hydrolysable halogen, e.g. chlorine, it is preferred to hydrolyse the chlorine in an acid medium and complete the hydrolysis in an ammoniacal medium.  In examples, the product obtained by removal of the hydrolysing medium after hydrolysis by (1) adding aqueous ammonia to a methanol solution of diethylsilane, is a polysiloxane oil; (2) adding (SiCH3)x, a yellow solid obtained by reacting SiH4 with ethylene at 520 DEG  C., to propanol and aqueous ammonia, is a white solid methylpolysiloxane; (3) passing ammonia gas into an aqueous 1:6-hexanediol solution of alkylsilanes (containing SiH and Si-Si units) obtained as the oily reaction product of mono-and di-silanes with ethylene at 500 DEG  C., is a sticky resin which hardens on heating in air; (4) introducing liquid monoethylsilane (B.P. - 14 DEG C.) into a mixture of methanol, water and ammonia at - 80 DEG  C., is an ethylpolysiloxane oil, which can be solidified by oxidation with HgO; (5) pouring an ether solution of (CH3)2SiHCl into ice water and adding ammonia and methanol, is a viscous dimethylpolysiloxane, which can be converted in known manner into silicone rubber.  The products may be used in the production of damping oils, pump oils, lubricants, stopcock grease, lacquers, thermal and electrical insulation, heat-resistant packings, corrosion-proof coatings and elastic mouldings.
Patent GB-519745-A (GB)
Title: Improvements in or relating to telephone secrecy equipment
IPC: H04M1/68
Filed: 1938-09-30
Abstract: 519,745. Secret telephony STANDARD TELEPHONES & CABLES, Ltd., and FILBY, F. G. Sept. 30, 1938, No. 28481. [Class 40 (iv)] In exchange systems, secrecy equipment is inserted in subscribers' lines under the control of the subscribers. The line SL is normally connected over leads SS to the sub-station set, a connection being set up in the ordinary way. When the called party replies, voice currents pass over a high-pass filter HPF to a detector AD which operates S whereupon SD falls back and BB switches in the secrecy equipment SE. The calling party is now fed over relay AA which locks BB, shunting of the feed being prevented by condensers connected in the transformers RP1, RP2. The secrecy equipment at the called sub-station is connected up in similar manner. If secrecy is not desired, wires A and C are connected by a sub-station key so that X pulls up and BB, AA fall back. The insertion of the equipment may also be effected by manual control whereby one wire is grounded to operate a differential relay which releases SD. When applied to a P.B.X., a number of common secrecy equipments may be provided of which one, allocated for use when a call is set up, is connected in the line as previously described. Specification 505,370, [Group XL], is referred to.
Patent GB-204554-A (GB)
Title: Improvements in or relating to incubators
IPC: A01K41/06
Filed: 1922-10-19
Abstract: 204,554. Godfrey, E. L. Oct. 19, 1922. Hatching-appliances.-An incubator egg-tray A having a woven-wire or like bottom B is provided with inclined rolling ways C for the egg, which ways are readily removable so that the chicks can hatch on the bottom B. The ways C may be in the form of a wire grid, Fig. 3, or U-shaped members, Figs. 4 and 5. The form shown in Fig. 5 is half the length of the tray and is preferably used where the bottom B is pinned down to the centre to a transverse bar E so that this bottom is of approximately nest shape, there being a partition wire D across the tray under which the ends c, Figs. 2 and 5, of mutually opposed members C engage one another.
Patent GB-918428-A (GB)
Title: Improvements in or relating to methods and apparatus for detecting the leakage of gases from a closed space
IPC: G01N27/66
Filed: 1959-08-20
Abstract: 918,428. Ionization chambers. OSAKA KINZOKU KOGYO CO. Ltd. Aug. 20, 1959 [Aug. 22, 1958], No. 28521/59. Class 39 (1). [Also in Group XXXVI] In a method of detecting leakage of halogen gas from a closed space (see Group XXXVI) air is drawn via a tube 2 through an ionization chamber 14 by means of an electric fan 3 and out via a port 15. The anode 7 and cathode 8 are supported on the inside of a square hole formed in an insulating member 6. A silver plate 11 carries a source 12 of α particles, 200 microcurie polonium 210 which is protected by a gold plating 13. Alternatively, radium (D + E) or plutonium 239 may be used.
Patent GB-609731-A (GB)
Title: Improvements in or relating to the production of magnesium cyanide
IPC: C01C3/08
Filed: 1945-10-29
Abstract: Magnesium cyanide is made by bringing together magnesium or an alloy thereof and hydrocyanic acid in liquid ammonia, separating the precipitated magnesium cyanide ammoniate, and diammoniating. The magnesium may be alloyed with, e.g. zinc, copper, aluminium, iron, manganese and silicon, and should be mixed as a powder or in the form of filings, turnings, ribbons, &c., with a substantially anhydrous solution of hydrocyanic acid in excess ammonia at -30 DEG  p  C. for two to three hours.  The precipitation may take place at higher temperatures under pressure.  The precipitate containing the insoluble alloy components, i.e. aluminium, iron, manganese, silicon and some of the copper, is filtered off, washed with liquid ammonia and heated, preferably under a partial vacuum out of contact with air or moisture, to a temperature between 150 DEG  and 350 DEG  C. for three to four hours.  Zinc cyanide may be recovered from the filtrate.
Patent GB-408336-A (GB)
Title: Improvements in or relating to apparatus for drying or superheating steam in boilers
IPC: F22B37/28
Filed: 1932-10-13
Abstract: 408,336. Steam separators and superheaters. GUZA, F., 7, Via Kandler, Trieste, Italy. Oct. 13, 1932, No. 28611. [Class 123 (iii).] Drying or superheating apparatus in which steam is throttled to effect a reduction of pressure comprises a stepped cone n terminating at its apex in a perforated diaphragm o<1> and having perforations q between each step each perforation increasing in crosssectional area in the direction of steam flow so that the steam entering at the open end o expands as it passes through, a whirling motion being imparted by a slight inclination of the perforations as shown at y. The dryer is located at the outlet end of a steam purifier composed of co-axial perforated or slotted tubes and co-operating deflector plates as described in Specification 408,413, and situated in the form shown in the steam space of a marine boiler. The purifier and dryer may be byepassed to supply abnormal quantities of steam by means of a conical valve s which also acts as a dryer.
Patent GB-629730-A (GB)
Title: Improvements in and relating to the packaging of powder puffs
IPC: B65D75/54
Filed: 1947-10-27
Abstract: 629,730. Packaging powder puffs. MICHEL, H. Oct. 27, 1947, No. 28647. [Class 94(i)] A package for powder puffs comprises a frame 3, circular in plan and of rigid and preferably transparent material extending about the periphery of a single puff 1, and a transparent envelope 5. The material of the frame 3 may be of cardboard, plastic, cellulose ester composition in sheet form, wood veneer &c. and may be seamless or may be connected as shown by a pin 4 or by other means. A flap 6 of the envelope may be secured by cement or by pinning.
Patent GB-655749-A (GB)
Title: Pulse time multiplex communication system
IPC: C07C5/25
Filed: 1948-11-04
Abstract: 655,749. Multiplex pulse signalling; pulse circuits. BENDIX AVIATION CORPORATION. Nov. 4, 1948, No. 28687. Convention date, Dec. 31, 1947. [Classes 40 (v) and 40 (vi)] The multiplex pulse train in a communication system comprises groups of pulses, the first of which is a reference pulse, the second of which is time displaced from the first in dependence upon a first channel signal, the third from the second in dependence upon a second channel signal and so on, the first reference pulse being displaced from the last pulse of the preceding group in dependence upon the last channel signal. In the embodiment described, each element of a chain of flip-flop multivibrators 10 is triggered to its unstable state by the reversion of the preceding one to its stable state. The period for which each circuit remains in the unstable state is determined by the signal voltage applied through transformer 20 to the grid of the normally conducting valve 17. The positive output pulse at the anode of valve 16 when it reverts to its non-conducting condition is fed to the grid of the corresponding valve in the next circuit 10 and to a signal pulse generator 11. In order to start the cyclic operation of the chain, a blocking oscillator 21 is provided which is normally inhibited by the negative charge on the grid condenser 23 maintained by pulses from one of the multivibrators fed through diode 25 and condenser 27. On starting up, or failure of the chain, the valve 21 produces a triggering pulse which is applied through transformer 22 to the cathode of valve 16 of one of the multivibrators. The signal pulse generators 11 comprise blocking oscillators 30, producing pulses whose duration is determined by delay lines 32 in their grid circuits and triggered by the output of cathode follower valves 33 fed with positive pulses from the associated multivibrator. The outputs from the signal pulse generators are combined for transmission by the series connection of the output windings of transformers 31. One of the pulse generators is arranged to produce pulses different from the others in shape, amplitude or duration or may be a coded multiple pulse, for synchronizing purposes.
Patent GB-512372-A (GB)
Title: Improvements in and relating to packings between the crank-case and the crank-shaft of two-stroke internal combustion engines
IPC: F16C33/74
Filed: 1938-10-03
Abstract: 512,372. Stuffing-box substitutes. URALMASCHINEN-VERTRIEBS-GES. Oct. 3, 1938, No. 28689. Convention date, Oct. 20, 1937. [Class 122 (v)] A stuffing-box substitute provided between the crank case and crank shaft 5 of a two-stroke internal combustion engine comprises a pair of fixed discs 1, 2 perforated for the passage of the shaft 5 with clearance, and a rotatable ring 3 fitting closely on the shaft between the discs, in light contact with the discs, the contact surfaces of the ring having grooves 7, 8 forming expansion chambers. The discs 1, 2 are spaced by a ring 4 riveted thereto.
Patent GB-634894-A (GB)
Title: Improvements in or relating to oxygen tents or like enclosures
IPC: A62B31/00
Filed: 1947-10-27
Abstract: 634,894. Folding cots. HIGGS, G. W. Oct. 27, 1947, No. 28694. [Class 52 (ii)] [Also in Group VI] An oxygen enclosure, intended primarily for use by infants when flying, comprises stiffened base and walls of gas-proof material, the sides and ends having their top edges turned in to form a continuous inturned rim. In the collapsable form described an outer rectangular container has its two longer sides only stiffened by wire frames 15 and an inner fitting, comprising a padded base and ends, stiffened by frames 16, 17 respectively, is inserted to make the assembly rigid. The flaps 21 are fastened together by press fasteners 22, which may also hold a transparent cover 23. Oxygen is supplied through a tube 38 and a sight feed indicator 37. The arrangement may be fastened in an aircraft by a shackle 27, which is rigidly connected to a second shackle 32 inside the enclosure and which is intended to secure a fireproof blanket 30 which is wrapped around the infant, thus affording maximum protection in the event of a crash. In the construction described in the Provisional Specification, a single-walled structure is provided having stiffened base and sides, which are made rigid when required by rectangular flaps, each hinged along a vertical edge to one side wall.
Patent GB-267842-A (GB)
Title: Improvements in foundry plant
IPC: B22D41/12
Filed: 1926-11-15
Abstract: 267,842. Vereinigte Stahlwerke Akt.- Ges., and Wilberz, J. Nov. 15, 1926. Plants.-A ladle for filling moulds 3 arranged in stacks is carried by a spring suspension 7 so that as it is emptied it rises, as shown in broken lines in Fig. 2. The ladle suspension is attached to a traveller 5 running on rope 6, Fig. 1, the tension of which is adjustable. A number of these devices may be employed and the ladles are filled from a ladle 8 traversed on a runway.
Patent GB-973094-A (GB)
Title: Artificial filament production
IPC: D01F2/28
Filed: 1961-08-09
Abstract: 973,094. Wet spinning cellulose ester solutions. CELANESE CORPORATION OF AMERICA. Aug. 9, 1961 [Aug. 10, 1960], No. 28753/61. Drawings to Specification. Heading B5B. Filaments &c. are produced from a cellulose ester by a wet-spinning process in which both the spinning solution and the coagulant are initially virtually non-conducting liquids, wherein the electrical conductivity of the coagulant in the spinning zone is controlled so as to maitain positive the value of the formula C<SP>2</SP> - 7C + 10, where C is the conductivity in micromhos per centimetre cube at the temperature of the coagulant. Spent coagulant may be removed from the spinning zone, treated with an ion exchange resin to reduce its conductivity and then returned to the spinning zone. The coagulant may contain a non-ionic dispersing agent to assist in keeping suspended cellulose triacetate fines suspended, e.g. the higher fatty acid esters of polyalkylene glycols. Spent coagulant may be removed from the spinning zone, an electrolyte such as calcium acetate or sodium acetate added to raise its conductivity and, after allowing solids to settle out, supernatant liquor may be returned to the spinning zone. The spinning solution may comprise cellulose triacetate dissolved in a solvent comprising a major proportion ofmethylene chloride and the coagulant may comprise methylene chloride and methanol in which the methylene chloride concentration expressed as percentage by weight is equal to 75“ - TŒ5, where T is the temperature of the coagulant in degrees Centigrade. By maintaining the conductivity of the electrolyte at a value as specified, the deposition of solids on the inside of the spinning equipment and the resulting progressive deterioration in the quality of the filaments can be prevented.
Patent GB-305251-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/02
Filed: 1927-10-28
Abstract: 305,251. Borton, A. F. Nov. 1, 1927. Clip brackets; curtains, suspending.-In a curtain rail supporting clip of the kind in which the rail is gripped when the final turn is given to the fixing screw or screws, the clip is of U-shape and lugs are provided on the base of the U to receive the rail, the limbs of the U engaging the surface to which the slip is secured. In the construction shown in Fig. 3 the bead z of the rail engages recesses formed in a pair of lugs 3 of a U-shaped clip or bracket 1 secured to the window frame by screws 2, the arrangement being such that on tightening up the screws 2 the clip is slightly distorted to close the recesses and grip the rail.
Patent GB-298482-A (GB)
Title: Improvements in and relating to apparatus for the interconversion of sound and electrical impulses
IPC: H04R9/04
Filed: 1928-10-08
Abstract: 298,482. British Thomson-Houston Co., Ltd., (Assignees of Zimmerman, A. G.). Oct. 8, 1927, [Convention date]. Loud-speakers; magnetic instruments; diaphragms.-Relates to a device for the interoonversion of sound and electrical impulses in which a moving coil is attached to the back of a vibratory diaphragm and is flexibly guided by means which are obscured or rendered hardly accessible by the diaphragm and consists in the provision of means for adjusting the position of the coil from a readily accessible position in front of the diaphragm, through a mechanical connection extending forward from the guiding means at the back of the diaphragm. Fig. 2 shows a construction of loud-speaker in which a conical diaphragm 1 is provided with a coil 3 located in an annular air gap between the poles 8, 9 of a magnet carried by a base 10. The outer periphery of the diaphragm is connected by a flexible member 5 of velvet &c. to a member 6 which is secured to a casing 4 adapted to be clamped to the pole piece 8. The coil is centred in the gap by a plurality of cords 13 knitted together at the centre and each given a turn around a cord 14 attached to the diaphragm. The outer ends of the cords 13 are wound round screws 15 carried by brackets 16 on the casing 4, adjustment of the coil in the air gap being effected by turning the screws 15. Specification 231,420 is referred to.
Patent GB-152344-A (GB)
Title: Improvements in and relating to side supporting wheels for single-track motor vehicles
IPC: B62D61/02
Filed: 1920-10-12
Abstract: 152,344. Boehm, R. Oct. 13, 1919, [Convention date]. Safety wheels.-Motor-vehicles having a pair of road wheels in line are provided with side supporting-wheels 5, 6, which are mounted to rock about vertical axes 15 under the control of springs 17 tending to keep them in the direction of travel and have their own axes out of alinement with the upright axes; the wheels are also carried by a transverse shaft 7 which is fitted with a hand-lever 12 and is mounted at points 9 towards its ends to yield slightly in a vertical direction. By virtue of these yieldable attachments the shaft can rock laterally when the vehicle inclines, and the side wheels in consequence remain substantially vertical. The hand-lever turns freely about the shaft 7, a yieldable operative connexion being provided by an elastic joint 11 between the lever and an arm on the shaft. The hand-lever is in two parts so that the lateral rocking of the shaft does not affect the engagement of the locking-pawl with the sector 13.
Patent GB-1032267-A (GB)
Title: New estratrienes
IPC: C07J75/00
Filed: 1964-07-13
Abstract: Novel steroids having the formula <FORM:1032267/C2/1> wherein R is hydrogen or lower alkyl containing 1-6 carbon atoms; R1 is hydrogen or lower carbalkoxy containing 2-6 carbon atoms; X is selected from the group consisting of -O- <FORM:1032267/C2/2> and <FORM:1032267/C2/3> is selected from the group consisting of <FORM:1032267/C2/4> are prepared by reacting a steroid of the formula:  <FORM:1032267/C2/5> with a semicarbazide of the formula: <FORM:1032267/C2/6> wherein Y is S or O and R2 is H, lower alkyl (1-6 carbon atoms) or lower alkenyl (1-6 carbon atoms) in an inert solvent at 30-150 DEG  C.
Patent GB-1157084-A (GB)
Title: A Structural Member for use in Building and an Assembly of such Members
Inventor: MARCH ADRIAN ANTHONY CECIL
IPC: E04D3/32
Filed: 1965-07-07
Abstract: 1,157,084. Roof or wall structure. A. A. C. MARCH. 1 July, 1966 [7 July, 1965], No. 28902/65. Headings E1A and E1K. A roof or wall is formed of elements 168 Fig. 2 in side-by-side interlocked engagement, the complementary engagement features being such that one edge of an unmounted member can be transversely engaged with an already mounted member; only when the other edge of the unmounted member is spaced upwardly or outwardly from the final mounted position, the complementary engagement features comprising respectively a channel, such as 182, Fig. 3, having a channel constricting abutment 177, (the channel opening downwardly in a roof construction) and an entering formation 180 engageable with the abutment (which formation extends upwardly in a roof construction) the entering formation making contact with said channel at a region of contact 178 distinct from said abutment to resist relative lateral compressive displacement between the members, the engagement features also constituting means (such as a throat 182) for inhibiting passage of rainwater through the joint. The elements may be secured by screws engaging a groove having serrations 170. The specification describes several alternative forms of complementary engagement features and cross sections of member. The engagement features on any one member can be identical so that one member would provide an entering formation on each edge and adjacent members a receiving formation on each edge. The joints may include sealing strips. A building may be formed with the walls and roof comprised by such members 193, 195, Fig. 16, connected at the wall to roof junction by brackets 194, the end walls being performed further members 210 Fig. 17 (not shown) similar to the side wall members 195. Members 118, 120 may be overlapped at their ends as in Fig. 9 where they are associated with a shaped jointing piece 124, the upper member having been suitably cut away.
Patent GB-1463357-A (GB)
Title: Production of a difference signal
IPC: G05D3/12
Filed: 1974-06-28
Abstract: 1463357 Automatic control SIEMENS AG 28 June 1974 [28 June 1973] 28946/74 Heading G3N The subject-matter of this specification is substantially the same as that described in Specification 1463356, differing principally in that the effect of a transfer pulse on the dividers is amplified. The claims are concerned with an arrangement, for producing a signal representing the difference between two quantities respectively represented by first and second pulse trains in which the relative spacings of the pulses represent the quantities, comprising a first frequency divider for receiving the first and second pulse trains in opposition and a reference pulse train, a second frequency divider for receiving the reference pulse train and a signal producing  means for producing a further pulse train which is pulse-width-modulated in dependence upon the phase-difference between the pulse trains produced by the dividers, which phase-difference represents the difference between the quantities.
Patent GB-397692-A (GB)
Title: Process of manufacturing soy bean flour
IPC: A23L11/30
Filed: 1932-10-17
Abstract: 397,692. Treating soya'beans. SHELLABARGER GRAIN PRODUCTS CO., 1900, North Samuels Street, Decatur, Illinois, U.S.A.-(Assignees of Shellabarger, W. L. ; 1900, North Samuels Street, Decatur, Illinois, U.S.A.) Oct. 17, 1932, No. 28977. Convention date, Nov. 9, 1931. [Class 58.] A drum 1 is about one quarter or one third filled with raw soy beans, its cover placed in position and the drum rotated, a vacuum pump 27 being actuated to bring about a pressure in the interior of the drum of approximately 24 inches. A valve 23 is then opened and heated carbon dioxide or other substance not containing active oxygen allowed to flow through the drum until the beans are at a temperature slightly above that of steam which is then introduced through a valve 21 the vacuum being maintained at a little over 24 inches. The steam is slightly superheated being at a temperature of 140‹ F. The steaming is continued until the deleterious odours and flavours are removed, e.g. for about forty minutes. The steam supply is then shut off and carbon dioxide again passed through, the temperature of the carbon dioxide preferably being progressively decreased to cool the beans. When the beans have fallen to a temperature of 100‹ F. the carbon dioxide flow is stopped and air at atmospheric temperature admitted until the beans are cooled and dried. The rotation of the drum is stopped and the treated beans degerminated, husked, crushed and milled. Specifications 234,202, [Class 58,. Grain &c.], and 367,865 are referred to.