baber/WOPTO huggingface dataset:
Patent GB-1249171-A (GB)
Title: Heater unit
Inventor: HERVILLE NEVILLE DONALD D
IPC: F24C1/00
Filed: 1968-03-04
Abstract: 1,249,171. Fluid heaters; water heaters. N. D. D'HERVILLE. 11 Feb., 1969 [4 March, 1968], No. 10422/68. Headings F4A and F4S. [Also in Division H5] A fluid heating apparatus e.g. hot air for connection to a central heating system or for use as a water or other liquid heater boiler, comprises a housing 1 having an inner compartment housing horizontal baffles 11 in staggered formation to produce a tortuous flow of the fluid from a lower inlet 18 in contact both with the baffles and also the exterior walls of vertically mounted, open ended tubes 13 which extend in staggered formation along the length of the apparatus and from the uppermost baffle 11a to the bottom wall 10 of the inner compartment. The fluid then passes into the open upper ends of the tubes for downward flow therethrough in contact with coaxial elongated heating elements 17 therein which may be electrically, gas or oil heated for eventual outlet through apertures in either or both side walls of the apparatus. In a modification for heating air the housing is divided into two compartments by a vertical partition housing a fan and the partitions are formed in the space between two concentric cylinders, the flow of air passing upwardly between the baffles and over electrically-heated vertical tubes, downwardly through the tubes and eventual discharge through the upper open end of the inner of the two cylinders.
Patent GB-282264-A (GB)
Title: Apparatus for inserting bushes
IPC: B23P19/02
Filed: 1927-04-19
Abstract: 282,264. M³ller, L. April 19, 1927. Assembling force fits. - An apparatus for inserting a bush 6 in a piece 5 comprises a shouldered mandrel 7 on which the bush is placed, the mandrel being detachably connected as by a bayonet-joint to a piston 3 working within a cylinder 2. Lubricant is drawn into the cylinder through a connection 13, by depressing a piston 8 by means of a pedal 12; or the lubricant may be supplied to the cylinder under pressure. A spring-pressed valve 15 seated in the piston 3 is displaced by a rod 16 on the operation of the press-head 18 to admit lubricant, under the pressure of a spring 9, to radial ports 22 in the mandrel immediately in advance of the bush. The striker 18 engaging the rod 16 is eccentrically mounted on a shaft, angularly adjustable by a crank 20, in order that the valve 15 may be correspondingly opened when bushes of varying heights are being inserted. The used lubricant is discharged through a passage 24 for purification and re-use. In a modification for inserting a bush in a forked member, the mandrel is formed in two parts relative axial movement between which effects the actuation of the valve 15.
Patent GB-833576-A (GB)
Title: Improvements in or relating to high-temperature-resistant plates
IPC: C04B28/00
Filed: 1957-04-01
Abstract: In making silica fibres by leaching glass fibres with acids, sodium, potassium or lithium silicate glass fibres (see Group XXIII) are mixed with dilute hydrochloric or sulphuric acid and the mixture is stirred until substantially all metal oxide is leached out.  The acid is then run off and the resulting silica fibres are washed in water. Fibres containing between 98 and 99% of silica are obtained by heating the washed fibres to a temperature of 1000 DEG  F., or over, to drive off free and combined water.  The silica fibres are used for making felts and plates which are resistant to high temperatures (see Group VIII).
Patent GB-105244-A (GB)
IPC: F16H48/30
Abstract: 105,244. Aoust, J. d'. March 31, 1916, [Convention date]. Axle structures.-The rear axle is divided, and the parts 19, 20 are provided with pinions 17, 18 driven by pinions 15, 16 on the shafts 13, 14 of the differential, which is driven from the propeller shaft 10 by spur gearing 11, 12. The differential and pinions 15, 16 are mounted in an extension 26 bolted to the axle casing
Patent GB-676725-A (GB)
Title: Improvements in photo-elasticimetry apparatus
IPC: G01B11/16
Filed: 1950-04-28
Abstract: 676,725. Polarizing apparatus. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AERONAUTIQUES. April 28, 1950 [April 29, 1949], No. 10565/50. Class 97 (i). A photo-elasticimeter of the kind which comprises a polarizer and analyzer disposed on the same side of a plate to be tested, a plane mirror disposed on the other side of said plate and parallel thereto, a lens associated with the polarizer and having in the focal plane thereof a source of light, and a lens associated with the analyzer for forming an image of the plate on a screen, is characterised in that the light beams incident on and reflected from the mirror are inclined thereto at an angle less than 12 degrees. As shown, the apparatus comprises a casing 11 on which is a chamber 11a housing sleeves 19, 21 and mounts 4, 9 for lenses. In sleeve 19 is mounted a polarizer 6 and a quarter-wave plate 5, whereas in sleeve 21 is mounted a quarterwave plate 7 and an analyzer 8 which is crossed with respect to polarizer 6. A toothed flange 20 on sleeve 19 meshes with a pinion 23 that also meshes with a toothed flange 22 on sleeve 21. Flange 20 also meshes with a pinion 30 which is geared at 29 with a shaft rotatable by an external knob 28. The analyzer 8 is carried by a mount 24 which is rotatable in sleeve 21 and has a toothed periphery engaged by a worm 25 which is coupled to a knob 27 by a flexible member 26 whereby it may be rotated. Hence, rotation of knob 27 effects rotation of analyzer 8 only, rotation of knob 28 effecting simultaneous rotation of the analyzer, polarizer and quarter-wave plates 6, 7. In casing 11 is a source of light 3 positioned so that the parallel beam emerging from lens 4 strikes the plate to be shunted, which is disposed outside the casing and normal to the parallel axes of the objectives 4, 9, at an angle less than 12 degrees. After passing through this plate, the polarized light is reflected by a mirror arranged to direct the light through the analyzer 8 and lens 9 on to a mirror 13. This mirror directs the light on to a mirror 14 and through an axially adjustable lens 18 on to mirrors 15, 16 and a screen 12. Mirror 15 is pivoted and held in operative position by a hook 31. When this mirror is released, a recording of the isoclinic or isochromatic curves can be obtained on a photographic plate 17. In another embodiment, the source 3 is disposed on the axis of objective 4, the mirror is parallel to and behind the plate to be studied and the axes of the objectives 4, 9 each make an angle of less than 12 degrees to the common normal of the mirror and plate.
Patent GB-182909-A (GB)
Title: Improved gas cock
IPC: F16K5/12
Filed: 1921-04-11
Abstract: 182,909. Short, A. April 11, 1821. Plug-cocks.-A single plug-cock is used for controlling the supplies of gas and air to a gas burner. The valve body is formed in two parts 1, 2 which are screwed together, whils the part 1 is also threaded for attachment to a gas-pendant pipe, and the part 2 for attachment to a burner. A conical plug 3 has a central gas passage formed by two intersecting holes, 9, 9<a>, Fig. 4, connected by a groove 10. Two air passages 13, shaped as shown in Fig. 5, are provided, which communicate with inlet holes 11. When the plug is turned in one direction, the gas is entirely or partially shut off while air passages is fully open. When the valve controls the supply to a number of burners a constricted pipe 15 is fitted to secure the necessary velocity of flow.
Patent GB-1147134-A (GB)
Title: Improvements in or relating to tyre building machines
Inventor: DRAAT WILLEM VAN
IPC: B29D30/28
Filed: 1967-03-07
Abstract: 1,147,134. Apparatus for retreading tyres. HILL BENTHAM ENG. CO. Ltd. 7 March, 1968 [7 March, 1967], No. 10610/67. Heading B7C. Tyre retreading apparatus comprises a frame 2-5 provided with an arm 10 and discs 8, (9) for supporting a tyre to be retreaded, the tyre being rotatable by an appropriate drive mechanism, and flexible rotatable stitching rollers 22, 29, 30 extending from the frame which are capable of assuming the peripheral contour of the tyre to be retreaded. The arm 10 having disc 8 at its end may be moved towards and away from disc (9) which is connected to transmission unit 12 and may be provided with an axial bore for supply of air to the tyre for inflating it. The stitching rollers may be mounted on a carriage which is movable towards and away from the tyre by means of a piston- and-cylinder arrangement 16, and may be either solid or inflatable. A tread rubber centring device 25 may be provided on the carriage. In operation, a tyre 6 is clamped between discs 8 and (9), inflated to the desired pressure, and a tread strip is applied to the tyre. The piston 17 of the piston-and-cylinder arrangement 16 is operated to bring the stitching rollers into contact with the applied tread strip at the appropriate pressure, and the motor is actuated to rotate the tyre and tread strip in contact with the rollers for the required length of time. In a modification (Figs. 4, 5, 6), the tyre to be retreaded is mounted within a frame which is pivotable about a horizontal axis. In further modifications (Figs. 7, 8) a single stitching roller may be used.
Patent GB-931857-A (GB)
Title: Process for the preparation of 1, 5, 9-cyclododecatrienes
IPC: C07C2/46
Filed: 1962-03-20
Abstract: 1,5,9-cyclododecatrienes are obtained by polymerizing conjugated diolefins in the presence of an inert solvent and a catalyst soluble in the solvent and comprising a dialkyl aluminium halide and a complex of a titanium halide with a nitrogen-containing organic compound.  The diolefine may be butadiene, which yields transtrans-cis-12,5,9-cyclododecatriene, isoprene or piperylene, and need not be used pure; monoolefins present are not affected. Titanium trichloride is the preferred halide and may be complexed with n-octylamine, n-nonylamine, 3,3,5-trimethylhexylamine, pyridine or quinoline.  Diethyl aluminium chloride is the preferred aluminium compound.  The mol. ratio of nitrogen-compound to titanium may be 1-10:1, and 0,1-10 millimols of titanium and 10-40 millimols of aluminium are used per litre of reaction mixture, the molar amount of aluminium compound being at least equal to the sum of the molar amounts of titanium and nitrogen compounds.  Benzene is the preferred solvent and the concentration of diolefin in the solvent may be 30-1000 g./1.  The temperature may be 0-150 DEG C. and the pressure that produced by the reactants.
Patent GB-702875-A (GB)
Title: Improvements in fluid sealing devices applicable to valves
IPC: F16K1/38
Filed: 1952-04-30
Abstract: 702,875. Valves. FLIGHT REFUELLING, Ltd., and WORLIDGE, R. F. Dec. 10, 1952 [April 30, 1952], No. 10920/52. Class 135 Means for effecting a fluid-tight seal between two members such as the spring-loaded closure member 22 and valve seat of a non-return valve consists of an initially flat rubber &c. ring 26 and a conical backing washer 27 both of which are received in an oblique groove 25 in one of the members, as shown, the movable closure member. This consists of two parts 23, 24 secured by a nut 21 on a stem 17 which is slidable in bearings 16 carried by spiders 14, 15 at each end of the valve housing. The housing consists of two pieces of metal tubing each expanded to part-spherical form and welded together at 12. The parts 23, 24 of the closure member are of a size to pass through the ends of the housing, and the ring 26 and backing washer, although of larger diameter, are deformable to an extent to enable them to be passed through the ends of the housing. The parts are assembled within the spherical part of the housing. The ring 26, which tends to regain its flat condition, is pressed against the backing washer 27 when the valve member closes on its seat in the housing.
Patent GB-975458-A (GB)
Title: Carbon papers
Inventor: POPIOLEK WLADISLAS
IPC: B41M5/10
Filed: 1961-03-24
Abstract: Compositions used in examples comprise: (Example 4) polycarbonate, polyester sebacate and methylene chloride; (Example 5) cellulose acetate-butyrate, mineral oil, carbon black, china clay, benzoquinone and methylene chloride; and (Example 6) polycarbonate, castor oil, carbon black, china clay, an amine of the formula <FORM:0975458/C3/1> where R is a low-molecular-weight alkyl group and R1 is a long-chain alkyl group, and methylene chloride. The composition of Example 4 is used to provide a reinforcing backing layer for carbon papers, and the other two to provide the transfer composition (see Division D2). Specifications 925,701 and 945,768 are referred to.ALSO:A waxless or substantially waxless carbon paper comprises a base sheet having on one side a layer of waxless or substantially waxless pressure responsive transfer composition bonded to the sheet by an intermediate bonding layer, and on the other side a reinforcing backing layer adhered to the base sheet.  The transfer composition is such that colouring matter and oil can be expressed therefrom to form an image on a suitably disposed paper sheet upon application of pressure, e.g. from a typewriter key, to the backing layer.  It may be that of Specification 925,701 or 945,768 or one comprising a soft vinyl polymer, colouring matter and oil. The base sheet may be of paper, textile fabric, or foils of regenerated cellulose, polyethylene terephthalate, nylon, cellulose esters, polyvinyl chloride, polyvinylidene chloride or polyvinyl chloride/acetate copolymers.  The bonding layer may be transparent or opaque, made from a vinyl polymer such as polyvinyl acetate, polyvinyl acetal, polyvinyl ether, a polymer or copolymer of vinyl chloride, or a polycarbonate, and may contain dyes or pigments.  The backing layer may a polycarbonate, a vinyl polymer, e.g. polyvinyl formal, polyvinyl chloride, polyvinyl chloride/acetate, polymethyl methacrylate or polystyrene, a cellulose ester, ethylcellulose, chlorinated rubber or polyvinylidene chloride.  It may include a plasticizer, but is one for which oil and/or plasticizer of the transfer coating is not a solvent or solvent-plasticizer.  It may contain a colouring matter or filler to give colour or opacity.  The carbon paper may be made by coating tissue paper with a solution of the material for the backing layer, then, on the other side, with the bonding layer, and finally with a solution of the composition for the transfer layer.
Patent GB-693325-A (GB)
Title: Process for the preparation of hydrochlorides of -a-chlorinated ethylamines
Inventor: VIARD MARCEL-JEAN
Filed: 1951-05-09
Abstract: Hydrochlorides of primary and secondary beta-chlorinated ethylamines are obtained by treating oxazolidones-2 which are either unsubstituted or are substituted by a hydrocarbon radical on the nitrogen atom at an elevated temperature with gaseous hydrogen chloride.  The substituting hydrocarbon radical may be an alkyl, aryl, aralkyl, alkylaryl or other cyclic hydrocarbon radical.  The reaction is preferably carried out at 80 DEG  to 120 DEG  C. and may be effected by passing the hydrogen chloride into the oxazolidone which is preferably dissolved in an inert solvent, e.g. an aliphatic or aromatic liquid hydrocarbon, an alcohol or a dioxane.  In examples: (1) a mixture of ordinary oxazolidone in toluene is heated to 100 DEG  C. and dry hydrogen chloride passed in, carbon dioxide is evolved and the oily product which separates solidifies and after cooling and centrifuging yields a crystalline mass of the hydrochloride of primary b -chlorinated ethylamine; the toluene used retains some of the product and may then be used in a fresh operation to give an increased yeild of product; (2) b -chlorinated ethylamine is obtained by passing gaseous hydrogen chloride through ordinary oxazolidone dissolved in butyl alcohol at 80 DEG  C.; (3) the hydrochloride of secondary b -chlorethyl ethylamine is obtained by treating N-ethyloxazolidone-2 with a current of dry hydrogen chloride at 78-80 DEG  C. until the evolution of carbon dioxide has ceased; (4) a solution of 3-cyclohexyloxazolidone-2 is treated with gaseous hydrogen chloride at 80 DEG  C. to yield the hydrochloride of secondary b -chlorethyl cyclohexyl amine.
Patent GB-713494-A (GB)
Title: An object locating radar system
IPC: G01S7/20
Filed: 1952-05-01
Abstract: 713,494. Pulse radar. BENDIX AVIATION CORPORATION. May 1, 1952 [May 16, 1951], No. 11042/52. Class 40 (7) The signal/noise ratio of a type G cathode-ray display for a pulse radar with a two dimensional aerial scan is increased by gating the receiver with a pulse whose timing relative to the transmitted pulse is cyclically varied, the variation period being not greater than the aerial beam width scan time, is the time taken by the aerial to scan an angle corresponding to the effective beam width. As shown a rectangular raster is produced on a cathode-ray tube 16 by the horizontal and vertical time bases 17, 18 which are synchronized with the corresponding scan components of the directional aerial 14 controlled by the device 15. The transmitter 11 is triggered by generator 10 and coupled to the aerial via a duplexer 13 which is also coupled to the receiver 12, the pulse output from which is applied to the grid of the cathode-ray tube via a gate circuit 21 and limiter 19 which passes pulses above a predetermined amplitude, the gate circuit being controlled by gating pulses from a generator 22 coupled to the trigger generator 10 and the timing of the gating pulses being cyclically varied between predetermined minimum and maximum values by a range sweep circuit 23 synchronized with the aerial scan control 15. For examining targets at a particular range, the range sweep control is replaced by a manual control 51 by means of switch 52.
Patent GB-182950-A (GB)
Title: Improvements in connecting rods for staking machines
IPC: F16C9/04
Filed: 1921-04-16
Abstract: 182,950. Walne, J. April 16, 1921. Reciprocating-tool machines and apparatus.- In a connecting-rod for a leather-staking machine in which the end 1 carries cams 2 for operating arms carrying pressing-rollers, the shank 3 is of steel and screws into the cast-iron end 1, and the other end of the shank has a flange 6, to which are bolted the halves 8, 9 of the head, having fibre &c. spacing-packing 11.
Patent GB-586968-A (GB)
Title: Improvements in or relating to permeability tuning arrangements
IPC: H01F21/06
Filed: 1944-06-12
Abstract: 586,968. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 12, 1944, No. 11165. Convention date, June 11, 1943. [Class 38 (ii)] A tuning device comprises two co-axial inductance coils with magnetic cores arranged to move in unison to vary the inductances of the coils, one core being so positioned that as it emerges from its coil it enters the other coil. The tuning coil LS forms a part of the signal input circuit of a superheterodyne receiver, wherein the oscillator circuit is of the Colpitts type, Fig. 1 (hot shown), having a tuning coil LO. The coils LS, LO have a common former 32, within which cores CS, CO and a rigid connecting rod 33 are reciprocated by a cable 34, guided by idler pulleys 35 and operated by a knob 37. As the core CO is withdrawn from its fully-entered position 39, the core CS. emerges from the coil LS and enters the coil LO so that the frequencies of the two circuits track together. At the low end of the frequency range, tracking is obtained partly by adjustment of trimming condensers but more accurately by varying the length of the rod 33. In an alternative arrangement, Fig. 3 (not shown), the oscillator coil has a larger-diameter former than the signal coil, thus slowing down the frequency variation of the oscillator circuit as its core is reciprocated, and permitting relative adjustment of each coil with respect to its core. In a further modification, Fig. 4 (not shown), the signal and oscillator coils are mounted on a common former but the oscillator coil is in two sections, series connected, and the core of the signal coil only enters one of these sections.
Patent GB-358950-A (GB)
Title: Improvements in the manufacture of sheets of non-splinterable or safety glass
IPC: B32B17/10
Filed: 1929-04-08
Abstract: 358,950. Compound transparent sheets. VANDIER, J., 2, Rue de Chateaudun, Paris. April 8, 1930, No. 11204. Convention date, April 11, 1929. Void [Published under Sect. 91 of the Acts]. [Class 140.] The edges of compound transparent sheets are sealed by the solidification of the adhesive used in uniting the glass, and other sheets The hardening may take place by evaporation of a solvent or by oxidization. When Canada balsam is the adhesive the addition of gelatin, gelose, albumen, &c., causes hardening preferably when heated to 65‹ C. at a reduced pressure.
Patent GB-610936-A (GB)
Title: Improvements in or relating to driving mechanism for velocipedes
IPC: B62M1/24
Filed: 1946-04-11
Abstract: 610,936. Treadle-propelled cycles. KRUSE, M. April 11, 1946, No. 11212. [Classes 136 (i) and 136 (ii)] In cycle-driving mechanism comprising a tension member passing around two spaced coaxial driving pulleys mounted on a driven wheel and connected thereto by one-way clutches, a pair of treadles connected one to each end of the tension member to move it alternately in opposite directions, and a guide pulley around which passes a bight formed in the tension member between the two pulleys, the tension member 27 is adjustably connected to the treadles 16, so that the distances between the points of connection of the tension member to the treadles may be simultaneously varied in the same direction. A twist grip 31 is mounted on a handle-bar 32 and controls the movement of slide members 21 to which the tension member 27 is attached. Two cables 34 extend from the twist grip 31 into the interior of the bottom bracket 15 on which the treadles 16 are mounted and into a hollow arm 18 of one of the treadles. One cable 34 is directly connected to the slide member 21 on one arm 18, and the other passes over a pulley 41 at the outer end of the other arm 18 and is then connected to the slide member. A further cable 42 extends from the second slide through the bottom bracket 15 over a pulley 41 at the end of the first arm and is then connected to the first slide. Tension springs 44 are arranged in the cables 34. The tension member 27 is connected at its ends to rocking members 61 pivotally mounted on the slide members 21. When the angle between the treadle and the tension member is small the rocking members are urged against the sides of the treadles and prevent the slide member from sliding on the treadle due to the load on the tension member. A stand is provided comprising a pair of downwardly diverging struts 74 passing through guides 77 and connected at their upper ends to an arm 76 angularly movable in a vertical plane so that downward movement of the arm moves the lower ends of the struts downwardly. The tension member 27 passes over drums 22 and drives the rear wheel through one-way clutches. Means are provided to disengage the one-way clutches to permit backward rotation of the driven wheel axle.
Patent GB-418355-A (GB)
Title: Hollow transparent building block
IPC: E04C1/42
Filed: 1934-04-13
Abstract: 418,355. Building blocks. COMPAGNIES REUNIES DES GLACES ET VERRES SPECIAUX DU NORD DE LA FRANCE, Boussois sur Sambre, Nord, France. April 13, 1934, No. 11230. Convention date, June 26, 1933. [Class 87 (i).] A hollow transparent building-block 1 of parallelopiped shape is provided on its upper face with one or more tenons 3 each adapted to fit within an upper block and having a groove 8 into which cement can spread when the two blocks are being assembled together. The blocks are arranged in rows each displaced by half a block with respect to the adjacent rows, half blocks completing the rows where necessary. As shown, two tenons of a block are separated by a width l adapted to accommodate the ends of two superposed blocks with a vertical filling 4 of cement.