baber/WOPTO huggingface dataset:
Patent GB-222161-A (GB)
Title: A new self-recording instrument for measuring the blood pressure
IPC: A61B5/022
Filed: 1923-03-28
Abstract: 222,161. Levinskaya, M., (Levin, A.). March 28, 1923. Pens for recording instruments. A recording - pen comprises two strips 63 of goose quill, a member 62 cut from somewhat stiff paper, and a light wooden rod 61 attached to the steel end 60 of a pointer operated by a diaphragm.
Patent GB-1443845-A (GB)
Title: Roller for a roller blind assembly
IPC: E06B9/46
Filed: 1974-02-27
Abstract: 1443845 Roller blinds BEAUTY BLINDS Ltd 24 Feb 1975 [27 Feb 1974] 8872/74 Heading A4B A roller 1 for a roller blind assembly has a longitudinal slot 2 in which an edge of a blind is to be located to be trapped by bending over a side wall 3 of the slot 2 to clamp the blind edge between a laterally projecting end 5 of the wall 3 and a complementary recess 6 in the opposed wall 4. The wall 3 and recess 6 may extend the full length of the roller or may be interrupted along the length. The roller is provided with internal ribs 8.
Patent GB-767600-A (GB)
Title: Improvements in or relating to the production of vitamin supplements for animal feeds
IPC: A23K1/16
Filed: 1954-03-26
Abstract: Feed supplements in the form of free-flowing particles are made by encasing one or several particles of fat-insoluble substance carrying fat-soluble vitamin in a moisture-resistant substance in which the fat-insoluble substance is insoluble.  The fat-insoluble substance may be water-soluble or hygroscopic; it is exemplified by gelatine, soy protein, lactalbumen, gum arabic, gum tragacanth, locust bean gum, starch, sorbitol, ethyl cellulose, methyl cellulose, carboxymethyl cellulose, pectin.  The moisture resistant substance may be a fat, e.g. hydrogenated cottonseed, coconut, corn or peanut oil, or a wax, e.g. esparto wax or a mineral wax, preferably of melting point not less than 45 DEG C.  The inner particles or the moisture-resistant substance may contain a substance which prevents oxidation of the fat-soluble vitamin, p  e.g. water-soluble propyl gallate or citric acid, or fat-soluble butylated hydroxyanisole or tocopherol.  Emulsifying agents, e.g. lecithin, mono- and di-glycerides of fat-forming fatty acids typified by glycerol monostearate, fatty acid esters of sorbitan or polyoxyethylene derivatives of such sorbitan esters, and polyoxyethylene glycol esters of fatty acids, may be incorporated in the particles.  The products show good vitamin A, D, E and K stability in the presence of mineral feed supplements exemplified by a potassium iodide, manganese, ferrous, copper, zinc and cobalt sulphates, and calcium carbonate formulation.  Examples are concerned with (i) mixing particles of vitamin A acetate entrapped in gelatine with molten hydrogenated cottonseed oil and spray chilling the mixture, (ii) emulsifying vitamin A acetate in a mixture of molten sorbitol, a polyoxyethylene ether (20 oxyethylene groups) of sorbitan monostearate and propyl gallate, spray chilling, distributing the particles so obtained in a molten mixture of hydrogenated soy bean oil, lecithin in soy bean oil and butylated hydroxyanisole, and spray chilling the mixture, (iii) homogenizing, in an atmosphere of nitrogen, a blend of molten hydrogenated coconut oil, butylated hydroxyanisole, vitamin D crystals and vitamin A palmitate in corn oil mixed with a preparation of solvent-extracted soy flour dissolved in warm water and containing citric acid, spray drying the homogenized mixture to produce particles, incorporating these particles in molten, completely hydrogenated cottonseed or soy bean oil, and spray chilling the mixture.  Specifications 541,663, 657,579, 708,160, [all in Group VI], and U.S.A. Specification 2,496,634 are referred to.
Patent GB-558331-A (GB)
Title: Improvements in and relating to machines for winding yarns and threads
IPC: D01H7/16
Filed: 1942-06-29
Abstract: 558,331. Winding yarns &c. COURTAULDS, Ltd., and HAMPSON, C. H. June 29, 1942, No. 8917. [Class 120 (ii)] In a yarn or like winding machine in which the bobbin 1, on which the yarn is wound is mounted on a spindle 2 carrying a fixed whorl 3 and a removable whorl 4, for driving it, the removable whorl 4 is provided with an internal spiral groove 10 which is engaged by a small rotation with a lug 6 at the end of the spindle 2 to connect the whorl 4 thereto ; a short straight groove 9 may lead into the groove 10. The groove may be formed in a brass or like insert 7 held in the whorl by a pin 8.
Patent GB-1445275-A (GB)
Title: Telecommunications systems including
IPC: H04J1/10
Filed: 1974-02-27
Abstract: 1445275 Carrier multiplex systems SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 27 Feb 1974 [27 Feb 1973 12 June 1973] 8964/74 Heading H4R In a carrier communication system utilizing a 60 MHz band which includes a number of terminal stations dividing the line into segments of fixed length each of which may include one or more shunt stations for the extraction or reintroduction of a 12 MHz band system and/or one or more 4 MHz systems or blocks of 900 channels, auxiliary pilot systems are produced at the terminal stations of the segments, from frequencies available therein, and transmitted through the segments to be used at the shunt stations for frequency band translation to convert a specific part of the band in the main link to the band required in the branch, or vice versa. Fig. 4 shows an embodiment of a terminal station for transposing pseudoquaternary base group blocks of 900 channels in band of 312 to 4028 kHz to assemble a 60 MHz group occupying the band 4404 to 59580 kHz according to CCITT plan 2, with auxiliary pilot signals of 8432, 12648, 12872 &c. obtained either directly from the carrier frequencies, or by intermodulation, as in deriving 12872 kHz from the carriers 12648 and 25520 in modulator 166 &c. At a shunt station, Fig. 5, a 12 MHz system is picked off by direct filtering of the pseudoquaternary base groups 2 and 3, of frequency band 4404-8120 and 8620 to 12336 kHz by the band splitting filters 200 and 210 while the pseudoquaternary group 4 in the band 8620-12336 is filtered off by filters 210 and 220 and transposed to the band 312 to 4028 kHz using the auxiliary pilot of 12872 kHz filtered out by filter 220, and added to the groups 2 and 3 in combiner 250. In a similar manner an incoming 12 MHz system has the pseudoquaternary groups 2 and 3 fed direct to the 60 MHz system output B while the group 1 is transposed, using the auxiliary pilot 12872 kHz, to occupy the fourth position in the 60 MHz system. The terminal station, Fig. 4, transmits auxiliary pilot signals in respect of each pseudoquaternary group to enable any group to be transposed to or from the band 312 to 4028 kHz by a filtering and frequency changing system at an intermediate shunt station, Fig. 6 (not shown). Also described is a terminal station for a 60 MHz system according to CCITT plan 1, Fig. 9 (not shown), and the corresponding shunt stations for diverting a 12 MHz or a group of 900 channels, Figs. 11 and 12 (not shown), which differ on the frequencies of the carriers and the arrangement of modulation stages. Various ways in which the auxiliary pilot frequencies may be derived from the signals present in the terminal station are described with reference to Figs. 10a to 10e (not shown).
Patent GB-558431-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/04
Filed: 1942-07-01
Abstract: 558,431. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). July 1, 1942, No. 9042. Addition to 532,026. [Class 112] Relates to a machine in accordance with claim 1, 2 or 3 of the parent Specification. The presser bar 24, Fig. 2, is operated through a floating lever 22 located above the presser-bar. Its floating pivot 30 is carried by a lever 20 with a fixed pivot 32 and a connection through links 56, 88, 94, lever 98 and link 104 with a lever 106 and a spring 102. The links 88, 94 being under compression have their pivotal connection 92 guided by slots in the locking device 36 and these slots limit the approach of the presser foot towards the work-support. The floating pivot is periodically locked by a device 36 connected to the links 56. The device 36 is similar to that described in Specification 410,463 and is arranged vertically. The periodic worksqueezing and releasing movements originated by a cam 40 are communicated to the presser bar through a lever 42, adjustable link 52, the floating lever and links 28. In the work-engaging position, as shown, the pivotal connection between the link 52 and the floating lever is in line with the fixed pivot 32. The feed carriage, carrying the work-support and the pivot 26 of the presser-bar, is mounted on an inclined pivot, as before, and the plane of this pivot, normal to the line of feed lies to the rear of the point at which the presser and work-support grip the work at the commencement of the feed so that the feeding movement is inclined slightly and draws the work hard against the work guide. The work-support has a forwardly-positioned high part to localise the gripping point. The back gauge has a lip which'lies under the welt strip and the work-support is recessed to receive the lip. The thread-measuring lever and the thread-lock operating levers are carried by yokes separately mounted upon a fixed pivot. The holder 200 for the needle-threading looper 10, Fig. 15, is slidingly mounted upon a bar 202 which is pivoted at 210 and oscillated by a lever 224 and link 222. Io the oscillation, a pin 214 on the holder 200 rides in a cam slot 217 and gives an endwise movement to the looper holder.
Patent GB-444931-A (GB)
Title: Improvements in method of preventing corrosion of metal walls of tanks
IPC: C23C22/76
Filed: 1935-03-22
Abstract: <PICT:0444931/III/1> The interior surfaces of metal tanks for the storing or transporting of petroleum oils or distillates are preserved from corrosion by directing upon them an impact pressure jet of a coating mixture consisting of a water suspension, of creamy consistency and substantially free from any organic binding agent, of one or more members of the group consisting of the hydrates and carbonates of alkaline earth metals.  A preferable coating mixture consists of lime slaked in sea water.  This coating, when desired, can be readily removed by means of a high pressure jet of hot salt water.  When a specially resistant coating is required, the lime coating may be washed over with a solution of sodium silicate, thus producing an insoluble coating of calcium silicate.  A suitable apparatus for applying the coating mixture comprises a pump D operated by an air motor F and elevating the mixture from the bottom 2 of the tank B to jets 42 which are rotated, by an air motor C, about vertical and horizontal axes 20 so that the mixture is applied to the whole surface.
Patent GB-1439565-A (GB)
Title: Process for producing silazane compounds
IPC: C07F7/18
Filed: 1974-02-28
Abstract: 1439565 Preparing silazanes UNION CARBIDE CORP 28 Feb 1974 [1 March 1973] 9073/74 Heading C3S Silazanes are prepared by reaction of a silane R 3 SiX or R 2 SiX 2 , wherein R is a C 1-6  alkyl or alkoxy radical or a vinyl or phenyl radical, and X is Cl, Br or I, with ammonia in the presence of an alkylene diamine, whereby an alkylene diamine hydrohalide phase is formed which separates as a liquid below the liquid silazane at 70 C. or higher, there being used at least 0À5 moles of NH 3  and 0À9-1À1 moles of diamine per gram-atom of S-bonded halogen to be reacted. Alternatively the diamine may be added after the silane-NH 3  reaction, the separation proceeding in the same way. In the examples ammonia and Me 3 SiCl, Me 2 SiCl 2  or Me 2 (EtO)SiCl are added separately but simultaneously to H 2 N-C 2 H 4 .NH 2 , or MeNH-C 2 H 4 -NHMe in approx 0À5 : 1 : 1 molar ratios to give Me 2 Si.NH.SiMe 3 , where n is 3 or more and
Patent GB-601685-A (GB)
Title: Improvements in and relating to the forming of filamentary material into a selected pattern or figure
IPC: H01J9/04
Filed: 1945-04-11
Abstract: 601,685. Coiling. SPERRY GYROSCOPE CO., Inc. April 11, 1945, No. 9092. Convention date, April 14, 1944. [Class 83 (iv)] [Also in Group XL (a)] Tungsten &c. wire is formed into spaced coils for spiral non-inductance filaments of thermionic valves by enclosing the wire in a sheath having flat sides coiling the sheath and then removing the sheath by etching &c. The wire 15 is enclosed on copper &c. tube 15 or is electrolytically coated and the coating is flattened. The sheathed wire is then coiled by pins 18, 19 on a rotary table 17. Solder indium &c. is applied and a nickel plate clamped over the coil to preserve the shape and it is removed from the coiler. The coil is then annealed and the coating removed by nitric acid &c. The coil may be clamped by a rigid bar during annealing and etching.
Patent GB-1105562-A (GB)
Title: Synchronous clock pulse generator
Inventor: BAILEY JOHN WILLIAM
IPC: H03L7/181
Filed: 1965-03-05
Abstract: 1,105,562. Synchronizing clock pulses with data. TELEMETRICS Inc. 3 March, 1965, No. 9135/65. Heading G4C. [Also in Division H3] A synchronous clock pulse generator system for responding to intermittent bursts of digital data pulses of variable repetition rate, comprises an oscillator to generate clock pulses and means to compare their phase with that of the data pulses, the oscillator being controlled by a bias voltage controlled by a reversible counter to reduce any phase difference. Digital data signals 11, from magnetic tape or a radio receiver and which may use a signal level change for bit 1 and no change for 0, are converted to pulse/no pulse form at 20. The data signals are gated with. clock pulses from a generator 70 driven by an oscillator 60 via frequencydivider counter 50, the latter producing an output at a predetermined count preselected by a switching circuit 55. The data pulses, in the pulse/no pulse form, are applied via a delay 25 to a reversible counter 40 which counts each pulse (each 1) up or down depending on the relative time of occurrence of the data pulse and the current clock pulse (i.e. which occurs first), as determined by up/down circuit 30. The count in upper stages of the counter 40 is converted to analogue form at 80 and used as one component of a bias voltage which controls the frequency of oscillator 60 so as to synchronize the data and clock pulses. The lower stages of the counter 40 pass a pulse, to the upper stages on reaching a predetermined count preselected by a switching circuit. The effects of noise are reduced by not using all stages of the counter 40 for the digital-toanalogue conversion 80. Each pulse from the up/down circuit 30 also produces directly a momentary positive or negative second component to the bias voltage. This second component is three or four times the size of the minimum change which can occur in the first component. The use of the second component eliminates instability in the loop.
Patent GB-431221-A (GB)
Title: Improvements in and relating to inlet manifolds for internal combustion engines
IPC: F02M1/00
Filed: 1934-03-23
Abstract: 431,221. Induction manifolds. HUGHES, R. M., 72, Cannon Street, London.-(Hopewell Bros. ; Watertown, Massachusetts, U.S.A.) March 23, 1934, No. 9144. [Classes 7 (ii) and 7 (iii)] The distribution of combustible mixture to the cylinders of a multi-cylinder engine is improved by leading the mixture through a pipe 11 into a chamber 16, which may be cylindrical, as shown, or spherical, and which is separated by a baffle 17 from a distributing chamber 4 connected to the respective cylinders by conduits 5, 6, 7. The restricted area formed by the baffle is between 2 and 3 times, and preferably 2À5 5 times, the area of the pipe 11 which has a bevelled end 13 extending, in the case of a spherical chamber 16, whose diameter is between 2 and 4 times the bore of the pipe 11, to a point situated at half the radius of the sphere below the centre thereof ; the end 13 may, however, be below the baffle 17. A shoulder 12 enables deposited fuel to be picked up by the mixture stream. In the arrangement shown, a piston 25, adjustably controlled by a spring 27, allows the capacity of the chamber 16 to vary in accordance with engine suction; a small hole in a cover 20 allows the space above the piston 25 to act as a dash-pot. An exhaust jacket 36 may surround the pipe 11. Specification 353,714 is referred to.
Patent GB-804098-A (GB)
Title: Cyclosiloxanes
IPC: C08G77/14
Filed: 1957-03-21
Abstract: The invention comprises cyclic siloxanes of the formula <FORM:0804098/IV (a)/1> where x is 3 or 4, and R is an alkyl radical of 1 to 4 carbon atoms.  They are prepared by thermal or catalytic cracking of the hydrolysis products of silanes of the formula ROOC.CH(CH3)CH2Si(CH3)X2 where X is a hydrolysable radical such as chlorine, bromine or alkoxy.  These silanes may be prepared by reacting, e.g., CH3SiHCl2 with an alkyl methacrylate in the presence of chloroplatinic acid, as described in Specification 804,097. Thermal cracking of the hydrolysate is effected at about 300 DEG  C. Catalytic cracking is effected at 200 DEG  to 300 DEG  C., suitable catalysts being sodium or potassium hydroxide.  Small yields of the cyclics can be obtained by distillation of the hydrolysate.  The compounds may be copolymerized with other siloxanes of the general formula R1mSiO 4-m/2 , where R1\h is a monovalent hydrocarbon or halogenated hydrocarbon radical, by heating the two siloxanes at 140 DEG  to 175 DEG  C. in the presence of alkaline catalysts.  The cyclics are useful as lubricants and as intermediates, e.g. by reacting with polyhydric alcohols in the production of modified alkyds.  In the examples, the methyl, ethyl and butyl esters are prepared.  Specifications 706,290, 769,496 and 788,842 also are referred to.
Patent GB-700746-A (GB)
Title: Improvements in covered rollers
Inventor: TURTON CHARLES MICHAEL
IPC: B41N7/00
Filed: 1950-04-17
Abstract: 700,746. Inking-apparatus. THOMPSON & CO. (OTLEY), Ltd., J. R. Feb. 28, 1951 [April 17, 1950], No. 9361/50. Class 100 (2). [Also in Groups V and VIII] An inking roller comprises a central roller stock within a resilient thermoplastic coating formed of an outer covering (of plasticized polyvinyl chloride, polyvinyl acetate or a copolymer of vinyl chloride with vinyl acetate and/or vinylidene chloride) keyed to the stock by an intermediate core of composition which is at least as resilent as the covering and has a low melting point (e.g. up to 50‹ C.), so that, after it has set, any further cooling will be insufficient to cause appreciable contraction of the covering ; the composition may be of gelatine - glycerine - water or other thermoplastic material with or without a tanning agent to raise the melting point after manufacture of the roller. In one method of manufacture a solid or tubular metal or other roller stock 1, Fig. 3, is centralized within a preformed plasticized p.v.c. tube 3, e.g. while the latter is still within its forming mould, and the core 2 is then cast between ; the tube 3 is formed by heating p.v.c. to about 150‹ C. in a vertical cylindrical mould 4, Fig. 2, the hollow centre being produced either by a former 5 whose ends fit into holes in the base 7 and in a removable locator such as a spider 8, or by immersing the mould, filled with liquid p.v.c., in boiling water and in cold water for periods controlled to produce a semi-gelled sleeve of the required thickness, the excess liquid then being poured off ; short strips of cotton &c. tape are spaced around the inner surface at each end before heating as above. In another method of manufacture the core 2 is first formed on the stock 1 (e.g. with the stock preheated to 60‹ C., first a thin film and as it cools a thicker layer of core material is applied), and the p.v.c. coating 3 is then moulded around it and gelled at a temperature insufficient to cause the core material to boil. The stock 1 may be treated to assist adhesion, e.g. by wrapping with cotton &c. tape or roughening, and the tube 3 may be internally, or the core 2 externally, keyed by channels, flutings, ribs &c. Shrinkage during casting may be allowed for by providing extra core material at the roller ends or by making the tube 3 over-long and subsequently cutting the ends away to the required amount; or bosses 10 of end plates 11 may fill up the shrinkage spaces. The roller ends may be sealed, by applying a film of sealing medium or simply by the end plates 11, to prevent damage to the core by water, acid &c. The composition of the coating 3 may be polyvinyl chloride powder, tricresyl phosphate and lead stearate ; a pigment may be added.
Patent GB-124961-A (GB)
Title: Improvements in or relating to Machines for Mixing Concrete and similar Material.
Inventor: TREW CHARLES CECIL
IPC: B28C5/20
Filed: 1918-06-07
Abstract: 124,961. Trew, C. C., and Le Bas, E. June 7, 1918. Rotary batch-mixers; continuous - discharge apparatus with moving containers.-Relates to machines for mixing concrete &c. and of the type comprising a rotary drum mounted on friction rollers and provided with two or more sets of wings, blades, or vanes, one or more sets of which project inwardly from the heads of the drum and throw the material laterally into a set of lifting-wings which pour it downwards, the drum being fed axially at one end and discharged axially from the other end. Fig. 3 shows an end elevation of the machine, and Fig. 5 is a development of a part of the inner surface of the drum. Shovel blades or wings s, U-shaped in section, Fig. 6, extend inwardly from the inlet side or from both ends of the drum a, and throw the material laterally towards the centre or other side of the drum and turn it over so as partly to mix it, the mixing being completed by lifting blades or wings t. The wings t extend from the outlet side of the drum towards the wings s, and deflecting-wings v may be disposed between some or all of the wings s. The shoot g of the feedhopper f is fitted with a shutter h, and the, discharge shoot k is pivoted at m and operated by a handle n. The machine mav be used as a batchmixer dr for continuous working. The shovel wings may be disposed on each side of the drum, and the lifting-wings arranged at or about the centre. Some or all of the lifting-wings may extend over the shovel wings or be so disposed that any excess of material on the lifting-wings flows off on to the shovel wings, whereupon it is again turned over and re-delivered to the lifting-wings.