baber/WOPTO huggingface dataset:
Patent GB-518784-A (GB)
Title: Improvements in and relating to apparatus for grinding and polishing optical lenses
IPC: B24B13/02
Filed: 1938-09-03
Abstract: 518,784. Polishing lenses. PARR, R. T., and PARR, A. T. Sept. 3, 1938, No. 25805. [Class 60] Lens grinding and polishing machines have two upstanding spindles 14 connected by chain gearing 18 and one of the spindles being driven at 16 from a motor 17. A pulley 20 on one of the spindles drives through worm gearing 25 a crank pin 27 acting through adjustable connecting rods 28 engaged with one of a series of pins 29 on arms 30 according to the amount of oscillation desired for members 32 on which yokes 34 are pivoted and carry arms 35 adjustable both longitudinally and angularly and carrying pointed members 36 that engage recesses in holders to which the lenses are secured by adhesive. Spring drums 37 are adjustably connected to flanges 38 secured to the yokes 34 to vary the grinding pressure. The spindles 14 carry grinding-heads 13 supported in tanks containing abrasive such as rouge and water. Holes 38 and pins 40 provide for maintaining the arms raised clear of the grinding-heads when required.
Patent GB-713350-A (GB)
Title: Improvements in or relating to the compression moulding of powdered materials
Inventor: REISSNER EDGAR WILHELM
IPC: B29C43/36
Filed: 1951-11-05
Abstract: 713,350. Moulding mixtures of comminuted wood and resin. FACTORIES DIRECTION. Ltd. Nov. 25, 1952 [Nov. 5, 1951], No. 25838/51. Class 87 (2) A method of moulding powdered material by' compression between opposed moulding members includes the step of so preforming the charge of material prior to compression, to a shape different from the final shape of the moulding, as to control the degree of compression of the material in different parts of the mould by controlling the ratio of the depth of the pre-formed charge to the depth of the final cavity in different parts of the mould. Since materials such as wood powder coated or impregnated with an adhesive binder do not flow when moulded under compression a pre-form is made which is shaped so that, when compressed, the compression of the material is uniform even though the final moulded article varies in thickness. To mould.a circular article 10 with a cross-section as shown in Fig. 2, a pre-form 4 is made with a cross-section as, in Fig. 1, the relation between the two cross-sections being such that the ratio of the depth of the pre-form 4 to the depth of the final mould cavity 10 is substantially the same at all places. The preform is made by using a special upper member 3, which may be wooden, and vibrating as blowing the loose charge into position. If the moulded article has pointed portions there is a tendency for the material to spread somewhat under pressure, and the shape of the pre-form may be arranged to compensate for this. The density of the moulded article may also be intentionally varied. To assist the pre-form to retain its shape the material may be mixed with a fixative such as wax or resin. A covering of wood veneer, sheet metal, paper &c. may be applied during the pre-forming. To mould an article with projections 21 which extend beyond the edge of the main body 20 a two-part mould may be used, Fig. 5. Powdered material is placed in a cavity in the bottom part 23, above a plunger 25, the top part 24 is added and more material is placed in its cavity up to a suitable level The top plunger 29 is then inserted and the article is compression-moulded. If the article has a stepped formation a die having relatively movable parts may be used for first pre-forming the change and then moulding it to its final shape.
Patent GB-584061-A (GB)
Title: Improvements in the means of mounting and adjustment of seats for automobiles
IPC: B60N2/07
Filed: 1944-12-23
Abstract: 584,061. Motor-car seats. SARJEANT, F. C., (trading as SARJEANT & CO., E.). Dec. 23, 1944, No. 25846. [Class 52 (ii)] A motor-car seat is mounted on a spherical headed bolt b which is seated on a sliding rail c, adjustment for inclining the seat being provided by a pair of complementary lock nuts g rotatable on a threaded stud h which passes through the seat member a and is fixed vertically to the sliding rail c. The seat may be locked longitudinally by means of a lever e engageable with notches d<1> cut in the rail housing d.
Patent GB-169714-A (GB)
Title: Improvements in internal combustion turbines with oscillating auxiliary liquid
IPC: F02C5/00
Filed: 1921-09-30
Abstract: 169,714. F÷ttinger, H. Sept. 30, 1920, [Convention date]. Working-fluid supply; regulating; reversing.- Relates to turbines of the kind wherein liquid is oscillated between explosion cylinders, and passes during the oscillation through uni-directional passages in a turbine rotor. The cylinders 1, 3, 5, 7, 9, Fig. 4, are arranged in the same plane, and are fitted with outlet and inlet passages 41, 42, Fig. 2, controlled by valves 31, 32, the liquid being conducted by adjustable guide vanes 11 through the rotor 13 and back to an explosion cylinder. According to the invention, part of the liquid on both the inlet and discharge sides is trapped in chambers 37, 36 to form a revolving liquid annulus with a central air cushion, the kinetic energy of which annulus can be drawn upon by the rotor or the cylinders. To reverse or change the speed of the rotor, the guide-ring 11, Fig. 2, may be shifted axially so as to bring into operation a different guide-ring 53. The Specification as open to inspection under Sect. 91 (3) (a) comprises a construction, Fig. 1 (Cancelled), wherein the liquid oscillates through passages 13, 14 in the turbine rotor, means being provided for coupling one cylinder on, say, the side 2 with two or more of the cylinders 1, 3, 5, 7, 9 on the side 1 so that the velocity of the liquid rising in the compression cylinders may be only a fraction of the velocity of fall in the explosion cylinder. The required distribution of the liquid is obtained by a suitable selection of the angles, cross-sections, and pitch of the conduits. Valvegear is provided to ensure one complete cycle of the gases in each cylinder per revolution of the rotor. Fig. 3 (Cancelled) shows a construction wherein the forward and return flow of the liquid tabes place through different passages 13, 13a in the rotor, and through different inlet and outlet guides in the cylinders 1, 2, annular valves 31, 32 being provided. This subject-matter does not appear in the Specification as accepted.
Patent GB-188866-A (GB)
Title: Improvements in hopper wagons
IPC: B61D7/04
Filed: 1921-09-30
Abstract: 188,866. Boyle, S., and South Durham Steel & Iron Co., Ltd. Sept. 30, 1921. Hopper wagons; doors, wagon.-The inwardly inclined sides B of a hopper-wagon are hinged about horizontal axes C near their upper edges, and are retained in the closed position by means of arms F pivotally attached to the doors and having abutments or shoulders F' engaging the longitudinal beams G of the underframe. Preferably each side B is formed of two parts or doors arranged side by side, and the doors in the closed position abut at their upper edges against longitudinal rods D. The arms F are locked in their securing position by means of bolts or safety pin H engaging holes F<2> in the arms F and in brackets I on the beams G. Automatic latches may be provided for holding the doors in the open position, and means may be provided for simultaneously releasing the pins H and lifting the arms F on each side of the wagon.
Patent GB-1338513-A (GB)
Title: Quaternized copolymers and their use in flocculating solids from  aqueous dispersions and in paper-making
IPC: C02F1/52
Filed: 1971-04-19
Abstract: 1338513 Polymeric flocculant GAF CORP 19 April 1971 [9 April 1970] 26122/71 Heading C1C [Also in Divisions C3 and D2] A cationic copolymer useful as a flocculating agent in water treatment comprises the recurring units wherein X is an anion, R is hydrogen, methyl or ethyl, R 2  and R 3  are alkyl, hydroxyalkyl or, together with the nitrogen atom, form a morpholine residue, Z is hydrogen or-CH 2 N<SP>+</SP>R 2 R 3 R 4 X<SP>-</SP> and at least 20% of the groups R 4  are residues of a quaternizing agent, the remainder being hydrogen. The polymers are derived by aminomethylation and quaternization from a polymer of 25-95% by wt. of an N-vinyl lactam and 5-75% of acrylamide or methacrylamide. Examples describe the use of the flocculant in the treatment of raw sewage and river water, in flocculating an aqueous dispersion of carbon black and as a filler retention aid in paper making. Reference has been directed by the Comptroller to Specification 1,141,166.
Patent GB-1105459-A (GB)
Title: Improvements in clothes airers or dryers
Inventor: MARKS RALEIGH WILLIAM
IPC: D06F58/10
Filed: 1963-07-02
Abstract: 1,105,459. Drying cabinets. NORTH WESTERN SPECIALITIES Ltd. 29 Sept., 1964 [2 July, 1963], No. 26167/63. Heading F4G. A drying cabinet 10 comprises a fan or impeller 21 mounted, together with a heater 18, in a housing box 17 below the bottom wall 13 of the drier compartment, the heated air stream passing from the fan along a duct 22 which flares from the fan to an outlet 14 in the bottom wall 13, which outlet is located to one side or end of the cabinet and extends therealong. The duet 22 and outlet 13 are formed so as to spread the warm air stream as it passes upwardly over the whole cross-sectional area of the drier compartment.
Patent GB-1536907-A (GB)
Title: Device for applying torque to a screw-threaded fastener
IPC: B25B23/16
Filed: 1977-06-22
Abstract: 1536907 Screw turning devices F T HATCHER and A S LAMBURN 22 June 1977 [24 June 1976] 26293/76 Heading B3N A device for applying torque to a screwthreaded fastener, such as wheel nut 19, comprises a support member 10 for engaging the ground or other surface, a torque applying member 14 rotatably supported on member 10 and a lever 16, which may be detachable, for rotating member 14. The end of member 14 may be located in any of a number of holes 12, 13 in member 10 and may have a peripheral groove. The member 10 may be mounted on a base 11 and may bear against the car body or other parts by means of bracket 17 which may be adjustable and have a cushioning surface. In Fig. 3 support member 20 comprises two hinged parts 21, 22 with holes 23.
Patent GB-441095-A (GB)
Title: Improvements in gilled tubes for heat-exchange apparatus
IPC: F28F1/30
Filed: 1934-09-14
Abstract: 441,095. Gilled heat-exchange tubes. DANKS (NETHERTON), Ltd., H. & T., and REID, R. G., Halesowen Road, Netherton, Dudley, Worcestershire. Sept. 14, 1934, No. 26463. [Class 64 (iii)] [See also Group XXII] A method of attaching gills to a heat-exchange tube consists in serrating, e.g. screw threading, the tube or the gills and expanding the tube either by hydraulic pressure internal rolling, or drawing a mandrel therethrough.
Patent GB-713426-A (GB)
Title: Improvements in or relating to external surfaces for moving craft
IPC: B64C21/06
Filed: 1950-10-31
Abstract: 713,426. Boundary layer control on aircraft and submarines. HANDLEY PAGE, Ltd., and LACHMANN, G. V. Oct. 23, 1951 [Oct. 31, 1950], No. 26601/50. Classes 4 and 113(2) A wall for an aircraft or submarine incorporates, in a part of the wall over which an enveloping fluid flows during forward movement of the craft, a chamber, defined within a structural element, which is one of the load carrying members of the wall, and covered by a porous element forming part of said wall and extending transversely to the direction of forward movement of the craft, the outer wall of the strutural element reinforcing the wall of the craft to leave the porous element substantially unstressed, being recessed and thereby spaced from the porous element and being apertured to permit passage of fluid from the porous element to the chamber, said chamber being connected to a discharge duct leading away from the porous element and including suction means for producing a pressure differential across the porous element, whereby a flow of enveloping fluid through the porous element is engendered and laminar flow in the boundary layer of said enveloping fluid thereby stabilised. The outer skin 2 is thickened locally and formed with slots 4 to receive tongues 3 formed on the lateral edges of strips 1 of porous material. A duct 5, which acts also as a structural member is secured to the skin 2 by rivets 6 adjacent each slot, the wall 7 of the duct being spaced from the strip 1 and perforated at 8. Abutting skin panels are reinforced adjacent their edges 9 and secured to formers 10 which are attached to the members 5 by cleats 11. The various ducts 5 may be collectively connected to a suction pump or each may be connected to an individual pump. The porosity of the strips 1 or the sizes of the apertures 8 and the ducts 5 may be varied to give varying degrees of boundary layer suction over different parts of the surface. In alternative arrangements inner and outer skins may sandwich corrugated structural members forming a plurality of ducts some of which may be associated with the strips 1, the outer skin being sufficiently thick to form a perforated duct below the strip. In another embodiment the outer skin is formed with a plurality of parallel lands and perforated therebetween, a layer of steel or nickel alloy gauze cloth being stretched over and secured to this structure.
Patent GB-772626-A (GB)
Title: Improvements connected with loose leaf binders
IPC: B42F13/04
Filed: 1954-09-14
Abstract: 772,626. Loose leaf binders. BROADHURST, C. J. Aug. 12, 1955 [Sept. 14, 1954], No. 26632/54. Class 146(1). A loose leaf binder, in which laces or cords pass through the sheets and are secured by fastening means in conjunction with the lace system, has a lifter bar with two posts engaging with the binder and forming extra mountings for the sheets which are spaced from the two laces. The spine 12 of the binder 10, 11 is provided with wings 13, 14 and a lace 15 passes through eyelets 16, 17 in the wings and is clamped by spiral springs 18 on the top wing 14. The lifter bar 19 has spaced posts 20 which seat on eyelets 21 on the rear wing 13 and has perforations to coincide with the eyelets 17, the lace 15 and posts 20 passing through separate perforations in the sheets to be bound. Sleeves or tubes may be provided for the lace 15 to pass through between the wings 13, 14 and such sleeves may be anchored rigidly or flexibly to the back cover 10. The wing 13 may be dispensed with, the eyelets 16, 21 being in a narrow strip of the rear cover 10 which is hinged to the rest of the cover.
Patent GB-246417-A (GB)
Title: Improvements in gas meters
IPC: G01F3/22
Filed: 1925-10-24
Abstract: 246,417. Loram, E. R. Oct. 24, 1925. Gas meters. - The gas meter casing 1 is divided by a partition 2 into an upper chamber 3 to which the gas is led and a lower chamber 5 which is divided into three measuring chambers a, b, c by two diaphragms 6, 6<a> consist. ing of discs or plates 7 connected by flexible fabric 8 which is clamped by means of a grooved expanding ring 9 against the beaded edge of an inturned flange or partition 9<a> secured to the casing wall. The flow of gas to and from the measuring chambers is controlled by a rotary valve consisting of a fixed plate 11 and a rotary plate 12. The fixed plate has a central port 13 leading to the outlet pipe 14 and three ports 15<a>, 15b, 15<c> arranged around the central port 13 and communicating with the chambers a, b, c respectively. The plate 12 is formed with an opening 16 and a covered channel 17. The opening 16 uncovers the ports 15a, 15b, 15<c> successively so as to allow gas to pass to the chambers a, b, c and the covered channel 17 brings the ports 15<a>, 15<b>, 15<c> successively into communication with the port 13 to allow the gas in the chambers a, b, c to pass to the outlet pipe 14. The diaphragms are thereby moved from a position in which they are near together at one side of the casing to a position in which they are near together at the opposite side and the chambers are successively expanded from minimum to maximum volume. The movement of the diaphragms rotates the plate 12 through the agency of levers 20, rock shafts 21, levers 22, links 23 and a tangent 24. The plate spindle 18 operates the counting or registering device through worm gearing.
Patent GB-1309206-A (GB)
Title: Combing-out cylinder for fibre separating devices of open-end  spinning units
IPC: D01H4/32
Filed: 1971-04-19
Abstract: 1309206 Labyrinth seals VYZKUMNY USTAV BAVLNARSKY 19 April 1971 [16 April 1970] 26726/71 Heading F2B [Also in Division D1] A combing out roller 2 for an open end spinning machine is separated from the adjacent side wall of the body of the separating device by a labyrinth seal 32. The seal may be present on one or both sides of the combing out roller and it may be formed by cylindrical grooves and raised portions of the wall or roller (as shown) or by gaskets fitted to the wall or roller. The labyrinth seal prevents the ingress of dirt between the roller and side wall.
Patent GB-319323-A (GB)
Title: Method of producing blade rings for radial flow steam or gas turbines and blade rings produced by this method
IPC: F01D5/04
Filed: 1929-09-03
Abstract: 319,323. Aktiebolaget Ljungstr÷ms Angturbin. Sept. 23, 1928, [Convention date]. Blades.-Blade rings for radial flow elasticfluid turbines are produced by inserting the ends of the blades into separate rings and securing the whole to the blade ring without welding. In the form shown in Figs. 2 and 10, the ends of the blade 10 are reduced and inserted into holes in stamped fastening rings 11, 12. These are inserted into recesses machined in the blade rings 13, 15 and the margins 22 rolled or pressed into secure engagement with the dovetail-shaped rings 11,12. In Fig. 11, the rings 11 are recessed and the blade rings 13 have the dovetailed projections. In the form shown in Fig. 12, the rings 11 merely fit on the shouldered part of the blade ends while the extreme dovetailed ends 24 are secured in the blade rings 13 by rolling or pressing as before.
Patent GB-850641-A (GB)
Title: Improvements in and relating to electromagnetic contactors
Inventor: PEARSON JOHN STANLEY
IPC: H01H50/24
Filed: 1955-10-20
Abstract: 850,641. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO. Ltd. Jan. 18, 1957 [Oct. 20, 1955], No. 26886/55. Class 38 (5). [Also in Group XXXII] A spring for mounting between a pivoted arm such as the clapper armature of a contactor and a fixed support is connected to the arm and/or support by an adjustable member having two separate means of adjustment. As applied to a contactor the armature 3 is pivoted about an axis 4a to move between the full and dotted line position under the influence of an electromagnet 2. One end of the spring 5 has its cap 5b engaging a knife edge 6a on a bracket fixed to the .contactor frame 1. The other end of the spring has its cap 5b engaging a knife edge 7a on a member 7 which is slotted at 7b where it is bolted to the armature 3. Adjustment of the relative positions of the armature and the edge 7a is made by the slot and bolt and/or bending of the member 7. The Specification states that the line through the knife edges 6a, 7a may coincide with the line through the knife edge 6a and the axis 4a in the dotted line position or the lines may cross during operation causing reversal of the spring force on the arm, its reverse movement on de-energisation being initiated by gravity.
Patent GB-400405-A (GB)
Title: Improvements relating to cooking stoves
IPC: F24B1/24
Filed: 1932-09-28
Abstract: 400,405. Cooking-stoves. McDOWALL, STEVEN, & CO., Ltd. and CUNNING- HAM, P., Laurieston Ironworks, Falkirk. Sept. 28, 1932, No. 26900. [Class 126.] In a heat-accumulating cooking.stove, of the type comprising a continuous-combustion fireplace, a heat-accumulator thermally connected to a hot-plate at the upper surface of the stove, and insulation to prevent heat radiation, a fuel supply hopper 5 is located vertically over the fireplace 4 and adapted to feed it continuously, and a tubular heat-accumulator 6 functioning as a flue is disposed out of vertical alignment with the fireplace and is thermally connected to a hot-plate 7. In the form of stove shown, the gases pass also through a horizontal flue 8 arranged over the oven and functioning also as a heat-accumulator, to which is thermally connected a simmering ring 10.
Patent GB-690957-A (GB)
Title: Improvements connected with cooking ovens
Inventor: FELTON ALBERT EDWARD
IPC: F24C7/06
Filed: 1950-11-04
Abstract: 690,957. Linings for cooling ovens. REVO ELECTRIC CO., Ltd. Nov. 5, 1951 [Nov. 4; 1950], No. 26971/50. Class 126 A cooking oven is provided with inner separable side walls which are located within the oven by collared pins mounted in the upper part of the oven. Lugs a<1> are provided at the upper edge of an inner oven wall a which is corrugated at a<5> to form; shelf-supports. Slots in the lugs a<1> co-operate with pins b which are adjustably secured to the top plate c of the oven by lock nuts d. Each pin b has a collar b' with a convex underface. The lower part of the side wall a is provided with apertures which act as vents between the inner and outer oven walls and also as finger grips for manipulation. The back and front edges of the side wall are.provided with inwardly and outwardly directedy flanges respectively, and the bottom edge has a curved inwardly directed flange a<4> which rests in a trough e<2> formed in the base plate of the oven between its side edge and a ridge e<1>. The side walls are easily removed by tilting about their upper edges and withdrawing the slotted tongues from the locating pins.
Patent GB-677260-A (GB)
Title: Improvements in thermionic amplifiers of the band pass type
IPC: H03F1/50
Filed: 1949-10-20
Abstract: 677,260. Valve amplifying circuits. DUMONT LABORATORIES, Inc., A. B. Oct. 20, 1949 [Dec. 17, 1948], No. 26975/49. Classes 40 (v) and 40 (vi). In an amplifier comprising three or more stages coupled by pairs of tuned circuits 16, 17, 18 respectively, damping impedances 21, 22, 23 are so disposed as to minimize change in the frequency response when the grid bias is varied; according to the invention the number of damping impedances connected across primary circuits differs from the number put across secondaries, while the ratio of the product of the damping factors of the primary circuits to the corresponding product for the secondaries is made unity. As shown, the circuits are tuned by the valve capacities and two damping impedances 21, 22 are connected across primary circuits and one, 23, across a secondary. The Specification as open to inspection under Sect. 91 also refers to amplifiers comprising an even number of stages, in which the stages are compensated in pairs by applying damping resistances alternately to primary and secondary circuits in successive stages. This subject-matter does not appear in the Specification as accepted.