baber/WOPTO huggingface dataset:
Patent GB-927227-A (GB)
Title: Improvements in or relating to casings for water tube boilers
IPC: F22B21/14
Filed: 1960-05-19
Abstract: 927,227. Boiler casings. P. BOUELLAT. May 19, 1960 [May 20, 1959], No. 17776/60. Class 123 (2). A boiler having a steam drum 2, respectively connected by banks 5, 6 of water tubes to water drums 3, 4 has a casing the walls of which are each made of two superposed and abutting plates which are rigidly secured together whilst the unit is being transported and erected but which are connected by a flexible joint allowing expansion movement when the boiler is operative. Thus the casing front wall consists of lower and upper plates 7, 8, respectively, welded to the drums 3, 4 and the drum 2, an internal flange 13 welded to the plate 8 at 14 overlapping the joint between the plates. During transport and erection the plates are secured rigidly together by a bolted butt-strap 12. After the tubes 5,6 have been expanded into the drums the buttstrap is replaced by a rubber strip 19 which is protected by the flange 13. The side walls 15, 17 are secured in like manner. Within the side walls of the casing an inner lining is provided as shown in Fig. 4. The lining consists of plates 33, 34 resting on the tube bank and connected by a trough-shaped member 23 within which is located a soot-blowing pipe 26. Spring-tensioned cables or chains, not shown, extend between the steam drum and the water drums to hold the plates 33, 34 and the trough member 23 against the tube banks. The space between the inner lining and outer casing plates 15, 17 is filled with insulating material.
Patent GB-1262256-A (GB)
Title: Machine for shrinking textile fabric
Inventor: JAEGER HUGO
IPC: D06C21/00
Filed: 1970-04-14
Abstract: 1,262,256. Shrinking fabric. H. JAEGER. 14 April, 1970 [15 April, 1969], No. 17789/70. Heading D1S. A fabric shrinking machine comprises a rotatable cylinder 2, a concave shell 4, 5 disposed around part of the periphery of the cylinder 2, means for heating the shell 4, 5, and a compressible belt 16 passing between the periphery of the cylinder 2 and the opposing surface of the shell 4, 5, the opposing surface having at least a portion thereof eccentric with respect to the cylinder 2 whereby the width of the gap between the cylinder 2 and the shell 4, 5 decreases from one end thereof to the other whereby, upon rotation of the cylinder 2, a continuous fabric 18 passing through the gap is shrunk by the eccentricity of the shell 4, 5 with respect to the cylinder 2 causing a decrease in the speed of the fabric 18. As shown, the shell comprises two portions 4, 5 with curved transition plates 6, 8 fixed thereto to make a continuous curved surface. The portions 4, 5 are pivotally mounted on pins 13 and are adjustable by screws 14 so that concave surface of the portion 4 is coaxial with the cylinder 2 and the concave surface of the portion 5 is eccentric to the cylinder 2. The portions 4, 5 are provided with electrical heaters. The belt 16, having a stable backing 16a and a foamed rubber or foamed synthetic plastics overlay 16b, passes around the cylinder 2 and a roll 21 tensioned by a thrust bearing 20 and a spring 22. A discharge roll 10, having a non-slip covering, is driven from the cylinder 2 by a transmission 17. The fabric 18 may be woven or knitted and is first damped.
Patent GB-1220985-A (GB)
Title: Axial sealing ring for reversibly rotating shafts
IPC: F16J15/32
Filed: 1968-04-16
Abstract: 1,220,985. Oil seals. STEFA INDUSTRI A.B. 16 April, 1968 [30 June, 1967], No. 17806/68. Heading F2B. An oil seal for a rotary shaft is provided with a number of spaced-apart projections 19 on the oil-free side of the sealing edge 16, the projections being bow-formed at least at their parts close to the sealing edge so as to provide wedgeshaped spaces between them and the sealing edge. The projections may be cylindrical, elliptical, polygonal or formed of a segment of a circle and form shaft-contacting surfaces 20 which co-operate with the sealing edge 16 for returning any oil leaking past the sealing edge 16 irrespective of the direction of rotation of the shaft.
Patent GB-766794-A (GB)
Title: Improvements in or relating to cathodes for electronic tubes, and electronic tubes incorporating such cathodes
IPC: H01J1/26
Filed: 1953-06-29
Abstract: A thermonic cathode for an electric discharge tube comprises a support formed of nickel alloyed with germanium having thereon a layer of alkaline earth oxides.  A one per cent proportion of germanium is referred to.
Patent GB-967464-A (GB)
Title: Air permeable elastic polymeric sheet material
IPC: D06N3/00
Filed: 1961-05-17
Abstract: <PICT:0967464/C3/1> A sheet of air permeable material consists of a sprayed pneumatically atomised and impacted random deposit of over-lapping and interfitting nodules and thread-like strands formed from coalesced particles of a normally solid elastic polymer i.e. one which after is reaches the gel stage and until and while it is completely dried from solution, will not flow sufficiently to close the pores therein either at ambient temperature or at the lowest practical temperatures for solvent drying, the nodules and strands being separated by serpentine channels through which air may circulate and the material having a density within the range of 35% to 75% of the density of a film cast from the same polymer. The polymer may be a plasticized vinyl resin giving a substance resembling leather or it may be a poly (ester-urethane) elastomer which gives a cloth-like material suitable for elastic garments. The plasticized vinyl resin is preferably a nitrile rubber and vinyl resin blend to which another plasticizer, vulcanizing agents, pigments, fillers, accelerators and antioxidants have been added, the blend being dissolved in a mixture of relative low boiling solvent and a critical proportion of relatively high boiling solvent.  The material may contain internal reinforcing fibres or it may be laminated during or after formation with natural leather or a strengthening fabric. Apparatus (Fig. 3) for forming the material consists of a series of spraying nozzles 21, to which the polymer solution is fed via pipe 19 and compressed air or inert gas is fed in pipe 18; an endless belt 15 which constitutes the forming surface for the material; a vulcanization zone 16 and a take up roll 17.  The face of the belt may be grained or otherwise formed to give a desired face effect to the material.  Alternatively the material may be formed on a separate facing material so that it adheres thereto or a reinforcing material may be fed so as to be embedded in the sprayed on material.
Patent GB-558521-A (GB)
Title: Means for transporting ammunition drums to a container for loading guns
IPC: F41A9/34
Filed: 1939-06-21
Abstract: 558,521. Overhead load-conveying rail system. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G., and JOY, C. F. June 21, 1939, No. 18040. [Class 104 (ii)] [Also in Group XXI] Guide rail means 16 for transporting ammunition drums 18 to cages 14 for loading guns, particularly on aircraft, have portions 15 of the rail supporting the drums movable out of normal alignment into a position 15a for sliding a drum into its cage. The drums are slidable in guides on the rail portions 15 and are retained by catches 19 which also prevent unintentional movement of the drums from the fixed rail 16.
Patent GB-986917-A (GB)
Title: Supporting and loading arm for drawing mechanism of a spinning machine
IPC: D01H5/56
Filed: 1963-05-07
Abstract: 986,917. Drafting-apparatus. SPINDELFABRIK SUSSEN, SCHURR, STAHLECKER & GRILL G.m.b.H. May 7, 1963 [May 11, 1962], No. 18049/63. Heading D1D. In drafting apparatus, in order that the loading- pressures may be adjusted when the roller-supporting arm and the locking-lever are in their operative positions, the locking-lever is in two or more parts, one of which constitutes the locking- lever proper, and at least one other forms a cover which is pivotable or slidable away from the adjusting means. The cover may be bolted to the locking part; or it may be hinged thereto and held by a catch; or it may be held by spring-clips over windows on the locking part, the clips being such as to allow the cover to be removed only when the locking lever is swung upwardly. As shown, the cover 43<SP>1</SP> lies above windows 48 and is pushed over the locking part 43, a snap-spring 46 being provided. In other forms, the cover is pivoted about a vertical axis, or is of plastics material retained by elastic detents engaging apertures on the locking part, or comprises a slide guided in projections &c. on the locking part. In using the arrangement for adjusting the loading pressures, the arm is lifted and the upper roll of which the pressure is to be adjusted is replaced by a measuring roll. The arm is returned and locked by depressing the locking lever; the cover is removed and the set screws are adjusted until the desired pressure is indicated by the measuring-roll. The arm is then lifted, the measuring roll replaced, and the arm returned and locked.
Patent GB-435582-A (GB)
Title: Towel cabinet
IPC: A47K10/42
Filed: 1934-06-18
Abstract: 435,582. Towel cabinets. BISSON, H. A., 297, Pleasant Street, Berlin, New Hampshire, U.S.A. June 18, 1934, No. 18052. [Class 18] A cabinet for interfolded paper towels comprises a fixed portion to which is hinged a cover member ; both parts being preferably formed from single sheets of metal &c. The fixed portion includes a back 2, bottom 3, ends 4, and a short front wall 8, the latter being provided with a finger recess (not shown), and a rolled upper edge. The cover comprises a top 15, front 14 provided with a finger recess 18 aligned with the recess in the wall 8, and ends pivoted at 17 to the ends 4 and seating in inwardly offset portions 12 in the ends 4. The towels are pressed forwards by a plate 25 and a bow spring 24 bolted, riveted, &c. to the back 2 ; and the plate carries a projection 28 moving in a slot in the top 15 of the cover and giving an indication when the cabinet is empty. A finger depression 21 facilitates opening of the cover which is held in the closed position by interengaging sockets and detents 20 formed in the ends of the cover and fixed portions. The back 2 is formed with flanges 6 to which the ends 4 are spot welded, and with a flange 11 on which the top 15 of the cover can rest. Apertures in the back 2 permit the cabinet to be fixed to a wall.
Patent GB-652490-A (GB)
Title: An improvement in or relating to tractor-propelled mowing machines
IPC: A01D34/26
Filed: 1948-07-06
Abstract: 652,490. Mowing-machines. BROWN TRACTORS, Ltd., D., and TURNER, A. July 6, 1948, No. 18100. [Class 6(iii)] A tractor-propelled mowing machine has a sub-frame a on which a rear frame b carrying the cutter arm is pivoted at b<SP>1</SP> to swing in a horizontal plane and in a vertical plane. The cutter arm e is connected by a chain d to one arm of a lever f, the other arm of which abuts against a pushrod g. The front end of the push-rod abuts against one arm of a lever h pivoted on the sub-frame a. The second arm of the lever h is connected by a lift-rod i to the free end of a rock-shaft k adapted to be operated by the tractor so that when the shaft k is rocked to move the push-rod rearwardly the cutter arm is raised. The rear frame b is restrained from horizontal pivotal movement by an overload release catch (not shown). When the cutter arm " breaks back " due to operation of the overload release, the rear frame pivots horizontally relative to the sub-frame about the axis m and the forward end of the push-rod swings clear of the forward lever h so that the lift mechanism is inoperative.
Patent GB-1355533-A (GB)
Title: Nickel base alloys
IPC: C22C19/05
Filed: 1971-05-28
Abstract: 1355533 Nickel-base alloy SPECIAL METALS CORP 28 May 1971 [1 June 1970] 18113/71 Heading C7A A nickel-base alloy consists, by weight percent, of 14À2 to 20% cobalt 13À7 to 16% chromium 3À8 to 5À5% molybdenum 2À75 to 3À75% titanium 3À75 to 4À75% aluminium 0À005 to 0À035% boron up to 0À18% carbon up to 4% iron up to 0À5% zirconium up to 0À5% hafnium up to 0À75% niobium up to 0À5% rhenium up to 0À75% tantalum up to 1% manganese up to 3% tungsten up to 0À5% rare earths. the balance being nickel and incidental impurities. The alloy has a structure which includes particles which are randomly-dispersed and irregularlyshaped, having diameters generally less than 0À35 microns being gamma-prime intermetallic compounds of nickel with aluminium and titanium, together with other precipitates which improve grain boundary ductility. This structure is achieved by repeated heating and cooling steps, the heating being first at over 2000F. preferably at over 2125F. then secondly at between 1500 and 1850F. and thirdly at 1350 to 1450F, with intermediate cooling steps.
Patent GB-859839-A (GB)
Title: Improved rotary vane dashpot
IPC: F16F9/14
Filed: 1958-06-07
Abstract: 859,839. Stuffing-box substitutes. NASH, A. R. B. June 8, 1959 [June 7, 1958], No. 18257/58. Class 122 (5). [Also in Group XXXII] In a fluid-filled rotary dashpot (see Group XXXII), the seal between a rotating shaft 27, Fig. 1, and a casing 11 is provided by a sleeve 33 of rubber or other flexible material. The sleeve is bonded to a collar 34 on the casing 11, and to a cylindrical surface 35 on the shaft 27. Washers 36 are provided between the shaft 27 and the sleeve 33.
Patent GB-898259-A (GB)
Title: Improvements in or relating to devices for producing discontinuous rotary movement
IPC: F16H27/02
Filed: 1960-05-24
Abstract: 898,259. Cam mechanism. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 24, 1960 [May 27, 1959], No. 18314/60. Class 80 (3). A device for producing stepped rotary movement of an output shaft 13 comprises a piston 11 having a splined connection with the shaft 13 and having a helicoidal groove 12 which is engaged by a pin 16 carried by a sleeve 14 located between the piston 11 and an outer cylinder 15. A spring-pressed radial abutment 19 is adapted to prevent rotation of the sleeve 14 within the cylinder 15. With the piston 11 at the top of its stroke, as shown, a compressed gas introduced through an inlet orifice 17 in the top of the cylinder 15 causes the piston 11 to descend and rotate the shaft 13 until the piston reaches the abutment 19. Further rotation may be effected on partial withdrawal of the abutment 19, to allow the piston to complete its stroke, by compressed gas supplied through a pipe 22. If the abutment 19 is disengaged fully, it allows the sleeve 14 to rotate within the cylinder 15 when compressed gas is supplied through an orifice 18, thereby returning the piston 11 to the top of its stroke without rotation of the shaft 13. A series of orifices is provided in the sleeve 14 for engagement by the abutment 19. The piston 11 may be actuated by hydraulic or electromagnetic means. In a modification, the helical groove is formed in the sleeve and the pin is carried by the piston.
Patent GB-1529163-A (GB)
Title: Phase modulators
IPC: H03C3/38
Filed: 1977-05-02
Abstract: 1529163 Phase modulators; telegraphy-data transmission-PSK modulators WESTERN ELECTRIC CO Inc 2 May 1977 [11 May 1976] 18343/77 Headings H3R and H4P In a phase modulator operating by adding a quadrature carrier to the output of a double sideband suppressed carrier modulator, even order distortion in the output is avoided and phase deviation is doubled by a balanced configuration of modulators 20, 24, and adders 21, 25 and a multiplier 28 and a third order distortion is avoided by phase shifting the quadrature carrier through equal but opposite amounts E before application to the adders 21, 25. It is stated that the third order distortion is reduced by an optimal choice of the phase shift E and by the in-phase carrier components resulting from phase shifting the quadrature carrier. A limiter 29 eliminates amplitude variations. The modulator may be incorporated in a PSK-PCM system. For multi-level PSK, the modulator output is multiplied by a factor of two e.g. in a harmonic generator.
Patent GB-1125542-A (GB)
Title: Speed-control device
Inventor: ROSS FRANZ
IPC: B66B5/06
Filed: 1966-04-27
Abstract: 1,125,542. Speed control systems. STARKSTROM-ANLAGENBAU ERFURT, VEB. April 27, 1966, No. 18401/66. Heading G1N. A brake on a lift system is operated by the output from an AND gate 17 (Fig. 1) whose normal input comprises three signals:- (a) a predetermined maximum speed signal from 9, continuously adjusted in accordance with depth by cam mechanism 5 driven by the lift pulley 4, (b) an actual speed signal derived from slotted disc 1 driven by the lift motor 3, a pulse train from disc 1 being converted to analogue form at 12 and compared at 13 with the maximum signal from 9. If the actual speed exceeds the predetermined maximum value, store 15 clears one input signal to AND gate 17, (c) a check on the actual speed signal comprising a second slotted disc 6 coupled to mechanism 5. The two pulse trains are composed on counters 20, 21, and divergence above a tolerated Œ 3 causes store 16 to clear one input signal to AND gate 17.
Patent GB-279180-A (GB)
Title: Improvements in and connected with liquid fuel supply arrangements for internal combustion engines
IPC: F02M37/02
Filed: 1926-07-26
Abstract: 279,180. Jones, F. J. S. July 26, 1926. Vacuum apparatus.-In a fuel-feed apparatus for internal - combustion engines, comprising a vacuum chamber 3 and a reserve chamber 1 feeding the carburettor, the valve 4 controlling the passage of fuel from the chamber 3 to the chamber 1 is held to its seat by a balance weight 6 so that the valve cannot open unless the level of fuel in the chamber 3 is higher than that in the chamber 1. The valve 17 controlling the suction passage 14<c> is raised to open the passage when the chamber 3 is lifted by the balance weights 10, the valve 7 controlling the admission of atmospheric pressure to the chamber 3 being at the same time closed against its seat 13. If the fuel level in the chamber 1 rises beyond a certain point, the weight of fuel in the chamber 3 overcomes the weights 10 and the chamber falls, closing the suction valve 17 and opening the atmospheric valve 7, and the apparatus ceases to function until the level in the chamber 1 falls sufficiently to allow the valve 4 to open under the head of liquid in the chamber 3. Excess of fuel in the chamber 3 siphons back to the fuel tank through a pipe 18 and connection 19, the flow being controlled by an automatic valve 22 provided with a narrow bore. Specifications 208,087; and 245,520, [Class 102 (i), Pumps &c.], are referred to.
Patent GB-1260611-A (GB)
Title: Improvements in or relating to the polymerization of fluorine-containing haloolefins
IPC: C08F14/18
Filed: 1970-04-20
Abstract: 1,260,611. Polymerizing fluoroolefins. DAIKIN KOGYO CO. Ltd. 20 April, 1970 [21 April, 1969], No. 18666/70. Heading C3P. [Also in Division C2] A fluorine-containing haloolefin, or a mixture of two or more fluorine-containing haloolefins, optionally with one or more comonomers is polymerized by suspension polymerizing the fluorine-containing haloolefin(s) in an aqueous suspension medium and in the presence of a di(perchlorofluoroacyl) peroxide of the formula wherein n is an integer of from 1 to 10, as polymerization initiator. In the examples chlorotrifluoroethylene, vinylidene fluoride, tetrafluoroethylene, vinyl fluoride, vinyl chloride and hexafluoropropylene are polymerized in the presence of water,' initiators of the formula (R f CO) 2 O 2  where R f  is Cl(C 2 F 3 Cl) 2 CF 2 , Cl- (C 2 F 3 Cl)CF 2 , H(C 2 F 4 ), H(C 2 F 4 ) 2 , H(C 2 F 4 ) 3  and CF 3 (C 2 F 4 ), di(trichlorooctafluorohexanoyl) peroxide, diisopropylperoxydicarbonate, trichlorotrifluoroethane, NaHCO 3  and di(1,2,4- trichloroperfluorohexanoyl )peroxide.
Patent GB-1003819-A (GB)
Title: Elastic thermoplastic polyester urethanes
IPC: C08G18/66
Filed: 1964-05-05
Abstract: A process for the production of polyester urethanes which are stable in the molten state and can be melt spun, comprises condensing at above 100 DEG C. in an aromatic chlorinated solvent having a B.P. of 120-200 DEG C. a mixture of: (a) 1 molecular proportion of at least one polyester having terminal hydroxyl groups and of M.W. 1200-5000 obtained by condensation of at least one aliphatic dicarboxylic acid having 4-12 C with at least one diol having 2-10 C, (b) 2-4 molecular proportions of at least one diol in which the hydroxyl groups are primary and which has more than 3 C, and optionally (c) at most 0.5 molecular proportions of at least one triol in which the hydroxyl groups are primary and/or secondary and which is soluble at elevated temperatures in the mixture of (a) and (b) with the solvent with (d) an aliphatic diisocyanate in amount such that the number of -NCO groups is equivalent to the number of hydroxyl groups in the mixture of (a) + (b) + (c), and separating the polyurethane from the solvent. Solvents may be chlorobenzene or o-dichlorobenzene. In a typical Example (1) a polyethylene adipate polyester in admixture with bis-(hydroxymethyl)-1,4-cyclohexane and tri-(hydroxymethyl) propane was reacted with hexane 1,6-diisocyanate in chlorobenzene. Specification 862,675 is referred to.
Patent GB-332368-A (GB)
Title: Improvements in engine pistons
IPC: F02F3/00
Filed: 1929-06-18
Abstract: 332,368. Roebuck, A. W. June 18, 1929. Piston.-In a piston comprising an inner body 1 of light metal and an outer shell 4 of cast-iron or the like, the body 1 consists of a cupshaped crown, from which depend oppositely disposed legs 2, carrying the gudgeon-pin bosses 3, and engaging ledges 8 in the interior of the shell 4. The packing-ring grooves 5 are formed in a thickened upper portion of the shell, the base of which engages a shoulder 10 on the piston body. Alternatively, an internal flange at the top of the shell may engage a rebate in the piston body. The ledges 8 may be formed at the bottom of the shell. The body is inserted into the shell from below and is engaged with the ledges 8 by a partial rotation, unlocking being prevented by screws.
Patent GB-275209-A (GB)
Title: Improvements in control systems for alternating current motors
IPC: B66B1/08
Filed: 1927-07-14
Abstract: 275,209. Waygood-Otis, Ltd., (Assignees of Lewis, J. D., Schlaf, A. H., and Jones, B. N.). July 27, 1926, [Convention date]. Drawings to Specification. Regulating transformers.-For controlling alternating-current motors, a variable voltage given by an induction regulator is added to or subtracted from a voltage derived from the line by auto-transformers. The arrangement is such that the resultant voltage comes equal to the voltage of the line and coincident in phase therewith simultaneously, in order to permit the motor at this stage to be connected directly to the supply. The induction regulator has an angularly movable member operated by a single-stroke auxiliary motor with a mechanical bias for returning it slowly.
Patent GB-1021821-A (GB)
Title: Improvements in electrical pulse storage arrangements
Inventor: RYDER ANTHONY DAVID
IPC: H03K3/12
Filed: 1961-05-25
Abstract: 1,021,821. Circuits employing bi-stable magnetic elements; bi-stable circuits. WM. WADSWORTH & SONS Ltd. April 12, 1962 [May 25, 1961], No. 18884/61. Headings H3B, H3P and H3T. In order that the stable state of an Eccles- Jordan trigger circuit using either valves 11, 12, as shown, or transistors may be unaffected by discontinuities of the mains supply at terminals 20, 21, magnetic storage cores 24 biased from the main supply by windings 26 have windings 22 connected in the cathode circuits. The core in the non-conducting cathode circuit is demagnetized or negatively magnetized by the bias, while the other core is switched by cathode current to the positive magnetic state. Consequently, when the interrupted supply is resumed, the rise of current in the negatively biased or demagnetized core is delayed and the trigger circuit operates in the previous stable state. In a modification, only one of the storage cores is provided, the other valve or transistor having an associated fixed delay comprising an air or air-gapped inductor or a small condenser connected across the grid resistor.