baber/WOPTO huggingface dataset:
Patent GB-867511-A (GB)
Title: Improvements in siloxane elastomers
Inventor: PAGE NIGEL
IPC: C08L83/04
Filed: 1957-05-02
Abstract: An elastomer-forming composition consists essentially of (1) an acid-free organopolysiloxane having a viscosity of at least 100 cs. at 25 DEG C., an average general formula:  <FORM:0867511/IV (a)/1> and being composed mainly of diorganosiloxane units, where each R is a monovalent hydrocarbon or halogenated hydrocarbon radical, from 0,05 to 10% of the radicals R being alkenyl radicals, and n has an average value of from 1,99 to 2,0, substantially all the molecules having terminal Si-bonded OH groups; (2) from 0,1 to 50% of an alkoxy silane of the formula R1mSi(OR11)4-m, where R1 is a monovalent hydrocarbon radical free from aliphatic unsaturation, R11 is an alkyl radical and m is 0 or 1 or an alkyl polysilicate dervied from the alkoxy silane; (3) from 0,01 to 5% of a carboxylate of a metal ranging from lead to manganese inclusive in the electromotive series of metals, the acid radicals of the salts having less than 16C atoms, and (4) from 0,01 to 5% of an organic peroxide, all percentages being by weight of the siloxane.  Constituents specified are: silanes (2)-methyl, ethyl, isopropyl, n-butyl and sec. amyl orthosilicates; metal salts (3)-Pb. Co and Zn naphthenates, Fe and Pb 2-ethylhexoates, Cr octoate, dibutyl tin-dibenzoate, -adipate and -dilactate and Pb sebacate; and peroxides (4)-ditertiary butyl-, benzoyl-, 2 :4-dichlorobenzoyl- and dicumyl-peroxides, which may be dispersed in liquid siloxanes.  Fillers, e.g. cork, wood flour, cotton linters, organic fibres, CaCO3, TiO2, C black, diatomaceous earth, zirconium silicate and silica powders, compression set additives, pigments and oxidation inhibitors may also be added. Curing may be effected at temperatures ranging from 0 DEG  to 250 DEG C.  Examples are given.  Uses: as potting compounds, for electrical insulation and for sealing voids.  Specification 687,759 is referred to.
Patent GB-184874-A (GB)
Title: Steadying device for vehicles
IPC: B60G21/10
Filed: 1921-05-20
Abstract: 184,874. Barbezieux, A. May 20, 1921. Equalizing load on wheels and springs; guiding vertical play; springs, arrangement of.-A steadying-device for vehicles comprises extensible and compressible mechanisms actuated by fluid pressure and disposed between the vehicle frame and the axles, the fluid being distributed by a control device actuated by the steering-mechanism to raise the outer side of the vehicle and to lower the inner side, when turning. Cylinders 3, Fig. 1, each have two pistons 4, 5 connected respectively to the vehicle frame 1 and the axle 2, either directly or through levers. A lever 29, Fig. 3, forming part of a control device and connected by a rod to the steering-mechanism, rotates a drum 24 mounted in a casing 12 and provided with channels 25 - - 28 which connect an entrance port 13 in the casing with either of two exit ports 14, 15. Fluid under pressure passes from a reservoir 16 through the port 13, and either through the port 14 and channels 40, 18, 17, 19 to force apart the pistons 4, 5 on the right-hand side of the vehicle and to force together on the left, or through the port 15 and the channels 20 - - 23 to obtain the opposite effect. A peripheral passage 35 connects the ports 14, 15 when the lever 29 is in the neutral position, so that the pistons and cylinders act as shock-absorbers. To obviate back pressure, the port that is not connected to the fluid-supply is connected to the surrounding atmosphere through a lateral duct in the passage 35, ducts 37 or 38, Fig. 4, and a port 39 in the cap 32 of the casing.
Patent GB-1249098-A (GB)
Title: Means for atomizing and igniting liquid fuel
IPC: F23D11/42
Filed: 1970-03-24
Abstract: 1,249,098. Fuel atomizing and igniting. DAIMLER-BENZ A. G. March 24, 1970 [March 28, 1969], No. 14241/70. Heading F1B. [Also in Division F4] A unit for use with means for atomizing and igniting liquid fuel in a flame-starting installation of an air-compressing I. C. engine or a fuel operated heating appliance comprises an electric motor 1 driving a contact breaker 6 for producing an ignition spark and a fuel-feed pump 3 for supplying an atomizing nozzle. Space 5 within casing 4 is filled with diesel fuel or petrol. The contact breaker may consist of a commutator-like element with carbon brushes.
Patent GB-966660-A (GB)
Title: Pure fluid amplifier
IPC: F15C1/10
Filed: 1963-04-10
Abstract: 966,660. Controlling fluid flow. SPERRY RAND CORPORATION. April 10,1963 [April 23, 1962], No. 14281/63. Heading G3H. A pure fluid device in which a power fluid stream issuing from a nozzle 16 normally discharges to an outlet 28 due to the positioning of a divider 27 but is deflected to discharge to an outlet 29 by flow through either or both of a pair of control nozzles 21, 22 has a concavity 33 whereby the main stream is caused to revert to the outlet 28 on cessation of control nozzle flow. Whilst a control flow takes place the deflected main stream follows the concavity, as indicated by the arrow 35, but when the control flow ceases the main stream is deflected to a lesser extent, as indicated by the line 36, causing the stream to strike the surface of the concavity such that some fluid is reflected backwards into the concavity to provide a pressure acting to deflect the stream upwardly. The stream ultimately strikes the divider 27 which channels it into the outlet 28. The outlets 28, 29 may be interconnected by a passage (not shown) in the divider to prevent switching from one outlet to the other in response to back pressure in an outlet.
Patent GB-900010-A (GB)
Title: Improvements in and relating to sealing devices for relatively rotatable members
Inventor: JAGGER ERNEST THORNTON
IPC: F16J15/36
Filed: 1961-04-20
Abstract: 900,010. Stuffing-box substitutes. ANGUS & CO. Ltd., GEORGE. April 20, 1961, No. 14353/61. Class 122 (5). A face seal, Fig. 2, comprises a resilient sleeve 1 which is axially stretched, by one or more compression-springs 9 held in the sleeve, and carries at one end a coaxial sealing-ring 6 around which the wall portion 4 of the sleeve has an inwardly-turned U-sectional shape so that it can roll to accommodate axial movement of the ring, the sleeve having a greater length when unstressed than when the seal is in working position, and being axially stretchable by the springs 9 when the seal is out of working position. The ring 6 may be of carbon and adhesively bonded to a seat 5 formed at one end of the sleeve. The spring 9 is compressed between the seat 5 and an oblique W-section ring 8 of pressed sheet-metal held against an inwardly-directed flange 7 at the other end of the sleeve. As shown in Fig. 1, the seal is held in a housing 3 by a thickened cylinderical portion 2 on the sleeve and the ring 6 engages a collar 13 on a rotating shaft.
Patent GB-628902-A (GB)
Title: A process for the manufacture of biotin
IPC: C07D495/04
Filed: 1947-05-30
Abstract: dl-Biotin is prepared free from inactive stereoisomers by the following steps: (1) fumaric acid is brominated to give meso-dibromsuccinic acid; (2) this with benzylamine yields bis-benzylaminosuccinic acid; (3) phosgene converts this into 1 : 3-dibenzyl-imidazolidone(2)-cis-4 : 5-dicarboxylic acid, which forms an anhydride on heating with acetic anhydride; (4) this acid or the anhydride is reduced with zinc and acetic acid and anhydride to 3 : 4-11 : 31-dibenzyl-21-keto-imidazolido) -2-keto-5-acetoxy-tetrahydrofurane, which can be hydrolysed with sodium hydroxide to 1 : 3-dibenzylcis - 4 - carboxy - 5 - formyl - imidazolidone - 2; the free aldehyde acid is characterized as its 2 : 4-dinitro-phenylhydrazone and can be re-converted to the cyclic acetate by treatment with acetic anhydride or acetyl chloride; (5) the aldehyde acid or its cyclic acetate is treated with hydrogen sulphide and potassium hydrosulphide, when it is converted into 3 : 4-(11 : 31-dibenzyl-21-keto-imidazolido)-2-keto-thiophane; (6) this reacts with 4-methoxybutyl magnesium bromide (prepared from 4-methyoxy-butyl bromide and magnesium in a mixture of ether and benzene) to give 3 : 4-(11 : 31-dibenzyl-21-keto - imidazolido) - 2 - hydroxy - 2 - (o  - methoxy-butyl)-thiophane, which exists also in the tautomeric form 1 : 3-dibenzyl-cis-4-mercapto-methyl-5-(o -methoxy-valeryl) -imidazolidone-2; (7) dehydration with boiling acetic acid yields 3 : 4-(11 : 31-dibenzyl-21-keto-imidazolido) -2-(o -methoxy-butylidene)-thiophane; (8) the double bond is saturated by catalytic hydrogenation, producing 3 : 4 - (11 : 31 - dibenzyl - 21 - ket - imidazolido)-2-(o  - methoxy - butyl) - thiophane; (9) one of the benzyl groups is removed with sodium and liquid ammonia; (10) the product is heated with hydrogen bromide to give 3 : 4-(N-benzyl-21-keto-imidazolido)-2-(o -bromobutyl) -thiophane; (11) the bromine atom is replaced by the cyano group with potassium cyanide; (12) the nitrile is hydrolysed to give N-benzyl-dl-biotin, characterized by esterification with diazomethane; (13) dl-biotin is obtained by removing the second benzyl group with sodium and liquid ammonia.  The Specification as open to inspection under Sect. 91 mentions also the removal of the benzyl groups by catalytic hydrogenation. Other modifications are: (1) the use of an ester (other than the acetate) of the cyclic form of the aldehyde acid, by carrying out the previous reduction with zinc and the corresponding acid and its anhydride in place of acetic acid and anhydride; (2) the use of other organo-metal derivatives of o -alkoxy-butyl halogenides in place of o -methoxy-butyl magnesium bromide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-543990-A (GB)
Title: Improvements in or relating to airscrews
IPC: B64C11/06
Filed: 1940-09-20
Abstract: 543,990. Screw propellers. FAIRHURST, L. G. Sept. 20, 1940, No. 14408. [Class 114] In an airscrew blade as claimed in Specification 488,673, the inner end of the root of the blade 1 is extended beyond the screw-threaded portion 2 that co-operates with the threaded socket or adaptor 3, and is rigidly secured in the socket or adaptor with the object of relieving the screw threads from stresses imposed tangentially on the blade while permitting the threads to take the centrifugal load. As shown, the inner end of'the blade root is provided with a cylindrical extension 10 between which and a coacting tapering surface 9 on the adaptor 3 a securing wedge 11 is forced by means of a ring 12 and screw studs 13. Specifications 237,245, [Class 114], and 408,698 also are referred to.
Patent GB-1085377-A (GB)
Title: Plain bearing provided with slots or pockets for containing lubricant
IPC: F16C33/10
Filed: 1965-04-06
Abstract: 1,085,377. Bearings. KARL SCHMIDT G.m.b.H. April 6, 1965 [May 2, 1964], No. 14598/65. Heading F2A. A plain bearing has a number of slots and/or pockets for containing lubricant formed over its entire width of bearing surface to form a kind of comb, the slots and/or pockets extend in the intended direction of rotation of a member mounted therein. The slots and/or pockets are located in regions of the bearing which have the greatest clearance and may be connected by axial slots or grooves or by chamfers 3, Fig. 2, for example. The slots and/or pockets may for example extend completely or partially through the thickness of the bearing wall; may increase or decrease in depth from a lubricant-supply slot 4, Fig. 2, towards the end faces of the bearing; and may be formed at parting-joints, Figs. 8 and 9 (not shown). The chamfers may for example be reduced in size from the slot 4, Fig. 2, towards the end faces of the bearing or may be decreased in size from slots 6, 7, Fig. 3. Several modifications are described in the Specification including providing a filter in an interconnecting groove.
Patent GB-870367-A (GB)
Title: Mounting blocks or springs of rubber-like material
Inventor: HOROVITZ MARCUS
IPC: F16F1/52
Filed: 1959-04-29
Abstract: 870,367. Resilient mountings and buffers. METALASTIK Ltd. April 4, 1960 [April 29, 1959], No. 14683/59. Class 108(3). A block of rubber or like material has at least one partly embedded encompassing ring in a plane normal to the axis of the block which constrains the block when it is loaded in compression between its ends. In the construction shown in Fig. 1 of a mounting block two plates 11, 12 carrying studs 13 for attachment purposes are bonded to a rubber block 10 of double truncated conical form. Alternative mounting means such as nuts or internal threads on the plates may be provided. A circular ring 14 is partly embedded, to a depth of half its radial -width, in the rubber at its widest section. The ring may be made of synthetic resin or metal and of any convenient cross-section. Fig. 3 shows an embodiment in which a hollow rectangular block is used of truncated double pyramidal form with a rectangular section metal ring. The end plates 18, 19 are extended to give sufficient clearance for four bolt holes at the corners. Fig. 5 shows a buffer of tapering cylindrical form, the face end 21 being rounded and the broad end having a plate 22 and attachment stud 23. A number of rings 24, 25, 26 encompass the buffer and the distance between successive rings may decrease as the ring diameters decrease. The rings may be bonded to the rubber or be press fits in moulded grooves.
Patent GB-1007527-A (GB)
Title: A method for automatic signalling
IPC: G01N30/24
Filed: 1962-04-17
Abstract: 1,007,527. Gas chromatography. CESKOSLOVENSKA AKADEMIE VED. April 17,1962 [April 17, 1961], No.14732/62. Heading G1N. In a gas chromatograph, the time positions of the peaks of the elution curve are compared with those from a standard gas mixture, and if, due to incidental secondary variables, they do not agree, the apparatus is rechecked with the standard gas mixture before the levels of the components in the mixture are measured. As shown (Fig. 1), a gas mixture is passed through a chromatograph 1 producing voltage signals consisting of a series of pulses whose time positions indicate the nature of the individual components of the mixture, and whose peak values indicate the quantities of these components in the mixture. These signals are recorded at 2 and fed to a unit 3 which determines the time position of the maximum values. These are fed through selector switches 5, 6, which block information regarding unwanted components by being open only at selected time intervals, to a member 7 which compares this time information with predetermined values corresponding to the desired components. If the times do not agree, a control unit 10 is energized to cancel all readings and admit a sample of the reference gas mixture to check the predetermined times stored in member 7. The test gas mixture is then again fed through the chromatograph. If the times still disagree a signal to this effect is indicated at 9; if they now agree, information regarding the peak value of each component is signalled to a peak-responsive device 11, which compares the peak value with a predetermined required value, and controls the gas producing apparatus automatically to give the desired quantity of the gas components. These operations are cyclically repeated.
Patent GB-120596-A (GB)
Title: Improvements in or relating to the Distillation and Recovery of Ammonia from Ammoniacal Liquor and Apparatus therefor.
Inventor: WILTON GEORGE
IPC: C01C1/10
Filed: 1917-10-11
Abstract: 120,596. Wilton, G. Oct. 11, 1917. Ammonia, distilling.-The hot spent liquor from an ammonia still 1 is subjected to reduced pressure in an evaporator 4 in order to disengage the residual ammonia, and the vapours so obtained are led through a concentrating-column 10 surmounted by a reflux condenser 10<a> to a coil condenser 15 from which the ammonia is led to a receiver 19 which is placed at a low level so as to create or assist in creating the requisite vacuum. A vacuum pump 22 may be connected to the receiver 19. The evaporator 4 is fitted with deflector plates 6 which cause the liquor to take a sinuous course, and may be provided with heating-coils 5. Less steam than usual may be supplied to the still 1, with the result that a larger proportion of the ammonia is obtained in the vacuum plant.
Patent GB-626015-A (GB)
Title: Improvements in or relating to steps for masts, poles and the like
IPC: E04H12/00
Filed: 1947-06-04
Abstract: 626,015. Posts; climbing-steps. FINER, H. J., and MASTS, Ltd. June 4, 1947, No. 14823. [Class 20(i)] A step for a mast, pole or the like is formed from a blank sheet of metal whose shape is approximately that of a parallelogram one of the diagonals of which lies, in the finished step, along the medial plane thereof. The blank, Fig. 1, is drilled at 3, 4, to provide holes 3a, 4a, for fixing bolts, and holes 5a, Figs. 2, 6, are punched through the part 1a of the step to provide a rough contact climbing surface. The blank is then pressed to the shape shown, Fig. 2, to form two limbs 1a, 1b disposed substantially at right angles to one another, side flanges 2 with strengthening ribs 6 if necessary, and a horn 1c. The limb 1b is preferably concave in shape to fit the curved surface of the mast &c., and if necessary the metal of the blank may be pressed upwardly as shown by the broken lines, Fig. 2, to produce additional fixing means.
Patent GB-873457-A (GB)
Title: Improvements in or relating to rowlocks
IPC: B63H16/06
Filed: 1959-04-30
Abstract: 873,457. Rowlocks. WEBSTER, P. B. April 30,1959, No. 14838/59. Class 114. A rowlock 2, in which the shank 4 is accommodated in. a slot 6 in a mounting block 1 and is provided with a spring 11 which retains the rowlock in either the upward operative or downward stowed position, is moveable from one position to the other by withdrawing the shank until the collar 10 clears the recess 8 or 9 and traversing it along the slot 6.
Patent GB-379290-A (GB)
Title: Improvements in muti-colour screens on paper and like supports for use in colour photography
IPC: G03C7/10
Filed: 1931-05-20
Abstract: 379,290. Screens for colour photography. PILLER, F., 7, Sendlingertorplatz, Munich, Germany. May 20, 1931, No. 14885. Convention date, May 28, 1930. Drawing to Specification. [Class 98 (ii).] A multicolour screen comprises a paper or cardboard base provided with a thin reflecting coating having a metallic lustre, such as a coating of aluminium applied by means of adhesive, upon which the screen elements are so printed that they are separated from one another by small interspaces. The screen pattern is printed either directly on the reflecting coating, or on a transparent isolating layer as of gelatin coated thereon. Sensitive emulsion is applied over the screen pattern, and the sensitized screen is used for making colour prints.
Patent GB-357086-A (GB)
Title: Improvements in and relating to friction clutches
IPC: F16D13/16
Filed: 1930-05-15
Abstract: 357,086. Friction clutches. OLDFIELD, T., 37D, Beverley Terrace, Boothtown Road, Halifax, Yorkshire. May 15, 1930, No. 14907. [Class 80 (ii).] The expanding pivoted-segment clutch described in Specification 316,487, [Class 80 (ii), Gearing, Variable-speed &c.], is modified by employing four segments 1, which are slotted to slide radially on pins 5 projecting from the member 6 and are expanded into uniform contact with the drum 3 by wedges 10 against retracting-springs 7. Slides 11, movable in guides 12 by bell-crank levers 12<A>, are adjustably connected to the wedges by screws 13, which have each four depressions 15 engageable by a spring-pressed locking-ball 16 carried by the wedge. Specification 7220/93, [Class 80, Mechanism &c.], is referred to. The Provisional Specification describes also a form employing three segments.
Patent GB-725748-A (GB)
Title: Improved interferometric means for measuring the composition of gases
IPC: G01N21/45
Filed: 1952-05-28
Abstract: 725,748. Interferometers. TUZI, Z. May 28, 1953, No. 14940/53. Class 97 (1). An interferometer for measuring changes in the composition of gases which give changes in refractive index comprises an optical system to produce from a common source two parallel light beams, to pass the beams respectively through standard and test gas chambers and to reflect each of the said beams through two separate angles of 90 degrees so that they pass back through their respective chambers for recombination to produce interference effects. As shown light from a source 11 is divided by a plane-parallel glass plate 13 into beams C and D passing respectively through a test gas chamber 16 and a standard gas chamber 18 to a prism 17 where each beam is twice reflected, one passing back through the chamber 16 and the other passing through a second standard gas chamber 19. The two beams are recombined by the plate 13 to give interference effects according to the difference of refractive index in the two chambers, these effects being observed in an eyepiece 22 Measurement of the fringe displacement may be effected by means of a scale 23, by rotation of a plate 24 or a prism 20 or by movement of wedges W1, W2, W3 and W4. To equalize the pressure in the two chambers they may be interconnected by a long tube having impervious walls and coiled into a small bulk.
Patent GB-255202-A (GB)
Title: Improvements in chocolate coating and like machines
IPC: A23G3/22
Filed: 1925-06-09
Abstract: 255,202. Scrase, G. B., and Tebble, R. W. H. June 9, 1925. Coating bakers' and confectioners' goods.-In a machine for coating confectionery, the coating-material is thrown or splashed up, from the bath of material, over the articles to be coated. As shown in Fig. 1, the coating-material in a bath having inclined bottom portions d, d<1> which drain the material to beneath the coating position, is splashed upwards by a rotary paddle or beater a mounted on a shaft a<1> and consisting of straight or curved integral or sectional, aligned or staggered radial blades. The heater a is positioned beneath a storage tank having inclined bottom plates f<1>, f<2> which have an outlet space between them which is controlled by a sliding plate f<3> adjustable by a bell crank f<4>. The outlet is regulated to maintain the chocolate level in the bath. The material is splashed upwards against the bottom plates f<1>, f<2> of the tank and drops on to the confections which pass from left to right, Fig. 1, on trays carried by conveyer chains which are trained over sprockets c<5>, c<6> and are driven from the shaft a' through a worm c<1>, a clutch c<3> operated through a rod j<2> by a pedal j<1>, and bevels c'. The chains are supported by rollers c<9> and the sprockets c<6> are eccentrically mounted and are adjusted by a clamped arm c<10> to tension the chains to such an extent that thev vibrate and shake off surplus coating-material. Splash guards g, g<1> are attached to the tank and a guard, or guards, h is, or are, adjustably positioned on one or both sides of the beater a. Thermometer pockets are provided in the bath and the tank which latter are provided with heating-elements and may have hollow walls packed with' heat-insulating material. Two or more rotary splashing-members may be provided, so that centres which are incompletely coated by one splasher will have their coating completed by another. The splashers may be arranged to deliver the chocolate over different distance. A reciprocating splasher may be used.