baber/WOPTO huggingface dataset:
Patent GB-166207-A (GB)
Title: Method of repairing and manufacturing propellers for air-craft, water-craft, and the like
IPC: B21D53/78
Filed: 1919-03-05
Abstract: 166,207. Rozewski, J. B. March 5, 1919. Screw propellers. - Laminated wood propellers for aircraft and watercraft are repaired, or new propellers are manufactured, by cutting the blade or the block from which it is made along the pitch surface and then uniting the parts with one or more intermediate layers of wood and/or one or more sheets of steel. The two parts of the propeller a', a<2>, Fig. 1, are united with a layer of wood b, and a sheet of steel c which is inserted into a recess in the part a<2>. The sheet of steel may be inserted into a recess in the layer of wood, or in the part a<1> of the propeller. In a modification, Fig. 4, the intermediate layer b may extend from the blade tip to an intermediate point in the blade. The sheet of steel may be formed as an open framework having a central member c<1>, Fig. 6, and transverse members c<2>, and a metal sheathing may be provided around the rim of the blade connected by bolts f to the steel framework. Other bolts h may connect the sheathing on opposite sides of the blade. The steel sheet may carry additional longitudinal strengthening-ribs l, Fig. 9, or l<1>, Fig. 10. The steel sheet may extend from end to end of the blades, across the boss, and at the boss it may be provided with holes to fit the shaft and also the bolts which pass through the boss. Enlargement of these holes in the wood of the blade is thus obviated. In another modification, the sheathing may cover the greater part of the blade and may extend outwards beyond the edge of the wood core.
Patent GB-657834-A (GB)
Title: Shockless jolting device for moulding machines
IPC: B22C15/10
Filed: 1949-03-01
Abstract: 657,834. Moulding-machines. FISCHER AKT.-GES., G. March 1, 1949, No. 5607. Convention date, Dec. 9, 1948. [Class 83 (i)] A moulding-machine of the shockless jolt, squeeze and draw type comprises a squeeze plunger 2 operating in a cylinder 1 and itself forming a cylinder for a jolt piston 3 which carries the mould table 4, a partly hollow rod 6 extending axially through both the members 2 and 3 and having upper and lower radial passages 13, 11 for supplying compressed air to beneath these members and an outlet port in the squeeze cylinder which is open only during jolting, to limit the air cushion to a predetermined thickness. In order to initiate the jolting operation, compressed air is supplied to a pipe 5 from a manually controlled valve 8 and passes through the rod 6 and passages 11 and through passages 12 in the plunger 2 which is thereby lifted until the passages 11 are obturated as shown in Fig. 1. The piston 3 is raised with the plunger thereby uncovering the passages 13 and allowing compressed air to enter a valve chamber 35 and thence through an annular opening 20 to beneath the piston which is thus raised until the spring-pressed valve sleeve 19 closes the opening 20 and the air beneath the piston is exhausted through a port 14. The piston then drops, the impact being cushioned by the air beneath the plunger. The continual raising of the squeeze plunger during the jolting operation due to the leakage of compressed air to the space beneath it is prevented by a port connected by a pipe 26 to exhaust whenever the valve 8 is positioned to supply air to the pipe 5. When the jolting has been completed the valve 8 is turned to cut off pipes 5 and 26 and supply compressed air to a pipe 17 leading directly to the space beneath the squeeze plunger. After squeezing, air is supplied by a pipe 25 to the top of a drawing cylinder 24 slidable on a fixed piston 23 and connected with pins adapted to lift the mould off the pattern on the table 4. In a modification, Fig. 3, the piston 3 does not engage the rod 6 directly, but a sleeve 41, sliding on the rod has a flange 40 held within the bore of the piston between rubber rings 43 by means of a nut 45.
Patent GB-1521212-A (GB)
Title: Write clock generator for digital time base corrector
IPC: H04N9/45
Filed: 1976-02-12
Abstract: 1521212 APC systems SONY CORP 12 Feb 1976 [17 Feb 1975] 05627/76 Heading H3A A write clock generator suitable for use in a time base corrector (Fig. 1, not shown) of composite signals derived from a plurality of video sources or from a single video reproducer and having component signals S H , S B  at different frequencies with a variable relative time relationship comprises a phase locked loop including signal separators 18, 20, phase comparators 19, 27, a signal combiner 24, a controlled oscillator 21, dividers 22, 25 and an arrangement 29, 30 for preventing loss of loop sync. when an abrupt change in the time relation between S H , S B  occurs by applying the appropriate one of two pulse trains P D , P E  derived from the divider 25 output so that comparator 27 output is unaltered. However the oscillator output is altered by changes in the frequencies of S H , S B  caused by time base errors. Synchronization between the outputs of counter dividers 22, 25 is obtained by resetting 25 by a signal derived from 22.
Patent GB-104076-A (GB)
Title: Improvements in or relating to Rubber-faced Driving-belts.
Inventor: WARWICK GEORGE
IPC: F16G5/08
Filed: 1916-04-18
Abstract: 104,076. Warwick, G., and Crouch, A. P. April 18, 1916. Belts.-To provide a gripping-surface on a rubber-faced motor-cycle driving-belt, a thread C is wound helically around the belt to form an open coil, or the coils may lie close together with gaps at intervals. Two threads may be wound helically in opposite directions, crossing one another on the upper and lower faces of the belt. The threads are secured in place by vulcanizing, the corners B' of the belt being forced over them. The threads on the outer surface of the belt may be covered in by rubber B<3>,
Patent GB-543886-A (GB)
Title: A stereographic position-finder
IPC: G01C21/02
Filed: 1940-05-02
Abstract: 543,886. Spherical trigonometry calculating-apparatus. JOLLY, H. L. P. May 2, 1940, No. 5736. [Class 106 (i)] Apparatus for position-finding in navigation by sea or air and based on stereographic projection is adapted to solve the spherical quadrilateral formed by the terrestial pole, any two stars and the observer, and comprises a circular or sector-shaped base 3 carrying main graduated arms 1, 2 pivoted about the common centre, each arm being fitted with a sliding carriage 20 on which is pivoted an adjustable slotted subsidiary arm 29. A microscope 28 is mounted in the pivot of each main and subsidiary arm, and a third is adapted to fit in the free end of each subsidiary arm or within the common socket formed when the free ends are brought together. The main arms have bevelled straight edges 19 passing accurately through the centre, and the carriages 20 have friction rollers 21, Fig. 3 mounted on members pivoted at 24 and adjustable by screws 25 at their free ends to clamp the rollers in adjusted position. Each main arm has a fitting provided with a clamping screw 6, Fig. 6, to lock the arm at an adjusted position on the edge of the base, and with another screw 10 for clamping it to an annular member 12 slidable in a groove in the edge of the base. By this means the arms may be each clamped to member 12 so that they may be moved together around the base. The end of one subsidiary arm has a part of the microscope socket formed as a spring clip to retain the microscope when this is fitted in the aligned sockets of the two arms. The chart is marked with lines radiating from the terrestial pole as centre and representing " star lines," each with a pair of scales of altitudes, and the edge has scales of angles and of Sidereal and Greenwich mean time, with an adjustable pointer 38, Fig. 1. The main arms are set at the correct relative height ascensions of two observed stars, and the subsidiary arms are set to observed altitudes, and the main arms are then rotated together to a position representing the true absolute positions of the stars. It is stated that one main arm only may be used and the chart rotated, and that the chart may be dispensed with, the arms being marked with scales of tangents.
Patent GB-963510-A (GB)
Title: Improvements in household and other refuse storage and disposal apparatus
Inventor: VENISON DOUGLAS MICHAEL
IPC: E04F17/12
Filed: 1962-02-14
Abstract: 963,510. Sink waste disposal. M. HALL & CO. Ltd. Feb. 11, 1963 [Feb. 14, 1962 (2)], Nos. 5739/62 and 5740/62. Heading A4N. A refuse storage and disposal unit for a kitchen sink comprises an outer chamber 1 with inlet 2 secured to the drainage outlet 7 of a sink 8 and having an outlet 3 to refuse disposal plant, a refuse receiving tube 18 slidably received in a sleeve 17 secured to the sink outlet and a valve member 26 which is hinged adjacent the lower end of tube 18 and serves to close both the end of tube 18 and outlet 3. The valve member is hollow and has holes 30 through which water may flow. The upper end of tube 18 has a removal grid 20 in an insert 19. Bowl or outer chamber 1 has an overflow connection 34 with U-trap 35 connected to disposal plant or normal plumbing system and in normal use the sink water passes in tube 18, through holes 25 therein to chamber 1 and out of overflow 34. When it is desired to dispose of refuse, grid 20 is removed and the refuse passed into tube 18 the full tube being emptied by lifting upwards by grid 20 which can be locked to the tube by a bayonet fitting so that valve 26 swings downward, releasing both the water in chamber 1 and the refuge in the tube. A visor 24 hinged to the same pivot 32 at the valve prevents water from chamber 1 forcing refuse away from outlet opening 3.
Patent GB-1018726-A (GB)
Title: Method of grading lumber by none-destructive strength test
IPC: G01N33/46
Filed: 1963-02-12
Abstract: 1,018,726. Testing physical properties. POTLATCH FORESTS Inc. Feb. 12, 1963 [March 1, 1962], No. 5743/63. Heading G1S. Lumber is graded by determining its stiffness indicated by the ratio of the load on a test piece to its deflection. Various graphs and explanations are given to show that the strength of the lumber depends on its stiffness. As shown in Fig. 1 a force is applied through a roller L to the midpoint of the wider face of a piece of rectangular cross-sectioned lumber supported at its endpoints by members S. The load applied by roller L is increased until a desired deflection chosen to give a fibre stress in the piece of lumber between 15 and 60% of the "proportional limit" (i.e. the average, for the species, stress per unit area at which the deformation of the piece begins to increase at a faster rate than the applied load). As the load increases contacts C 1 -C 5  are progressively closed and operate markers M 1 -M 5  respectively to indicate the load applied. Alternatively the load may be maintained constant and the deflection measured.
Patent GB-101763-A (GB)
Title: New Device for Writing Paper.
Inventor: KRAJEWSKI STANISLAS
IPC: B42D15/08
Filed: 1916-04-20
Abstract: 101,763. Krajewski, S. April 20, 1916. Letter-sheets.-The letter-sheet shown in Fig. 1 is provided with a coloured adhesive sealing tape a, c running parallel with the longer side of the letter and having protruding ends which may be.bent over after the letter has been folded along the lines a b, c d, and then along i k and l m. The sealed letter is shown in Figs. 2 and 3. The inside of the address portion of the sheet is covered, to render the letter illegible, by means of advertisements, photographs, coloured paper, &c.
Patent GB-600828-A (GB)
Title: Improvements relating to processes of agglomeration applicable to ceramic materials or the like, and to products resulting therefrom
IPC: C04B33/13
Filed: 1945-03-08
Abstract: In the manufacture of refractory articles a refractory powder is dry-mixed with a binder which is solid at normal temperature, e.g. urea, colophony or like resins, or anhydrous oxalic acid, the mixture is heated sufficiently to cause the binder, or its decomposition products, to replace any gases adsorbed by the refractory powder, and, after cooling, the mass is agglomerated by pressure.  The binder may be present in amounts between 2 and 20 per cent by weight of the mix.
Patent GB-349455-A (GB)
Title: Improvements relating to barbituric acid derivatives
Filed: 1930-02-21
Abstract: Alkyl- or aryl- D 2, 3 - cyclopentenylbarbituric acids are prepared by condensing an alkyl- or aryl-D 2, 3-cyclopentenylmalonic acid ethyl ester with urea in the presence of alcohol and sodium ethylate, distilling off the alcohol progressively in an open vessel and heating the product to about 115 DEG  C.  The preparation of C : C-n-propyl-, isopropyl-, and n-butyl- D 2, 3-cyclopentenylbarbituric acids is described.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the preparation of the same compounds by treating the sodium compound of D 2, 3-cyclopentenylbarbituric acid with an alkyl or aryl halide and includes an example of the production of C : C-b -bromallyl-D 2, 3-cyclopentenylbarbituric acid by interaction of D 2, 3- cyclopentenylbarbituric acid dissolved in caustic soda with b -bromallyl bromide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-608525-A (GB)
Title: Improvements in and relating to centrifugal fans
IPC: F04D29/46
Filed: 1946-02-25
Abstract: 608,525. Centrifugal fans. MACHINEFABRIEK GEB. STORK & CO. N.V. Feb. 25, 1946, No. 5884. Convention date, April 9, 1940. Drawings to Specification. [Class 1.10 (i)] In a centrifugal fan having angularly adjustable guide blades in the annular passage leading to the inlet eye. These blades and the rotor blades are of aerofoil section. The chordal length of the guide blades is approximately equal to their mean pitch and their thickness is at least one-tenth of their chordal length.
Patent GB-708382-A (GB)
Title: Improvements in or relating to friction brakes or clutches operable both hydraulically and pneumatically
IPC: F16D51/44
Filed: 1952-03-07
Abstract: 708,382. Pipe couplings. FAWICK, T. L. March 7, 1952 [March 20, 1951], No. 5980/52. Class 99 (1). [Also in Groups XXIV and XXXIV] An automatic shut-off hose coupling for a fluid pressure brake system comprises male and female members 90 and 83 normally locked in engagement by balls 88. To release the coupling, sleeve 84 is slid forward against spring 86 so that the balls 88 are able to move outwardly into a space formed between the back edge of sleeve 84 and the retaining snap ring 85. When the two ends of the coupling are then separated, valves 83a and 90a may be advanced by springs 83b and 90b on to conical seats and thus seal each hose end automatically.
Patent GB-1529236-A (GB)
Title: Non-flammable moulding compositions based on polymers of propylene
IPC: C08K3/22
Filed: 1976-02-17
Abstract: 1529236 Non-flammable polypropylene compositions BASF AG 17 Feb 1976 [18 Feb 1975] 06117/76 Heading C3K A composition comprises: (a) 100 parts by weight of a polymer of propylene, (b) 37-47 parts by weight of a Diels-Alder adduct of hexachlorocyclopentadiene and a mono- or polyethylenically unsaturated compound of from 4 to 12 carbon atoms and optionally 1-8 Cl or Br atoms and/or 1-8 O atoms, (c) 7-20 parts by weight of Sb 2 O 3 , and (d) 10-20 parts by weight of melamine. Material (b) is preferably an adduct of hexachlorocyclopentadeine and cyclooctadiene.
Patent GB-179355-A (GB)
Title: Improvements in filters
IPC: B01D29/00
Filed: 1921-02-24
Abstract: 179,355. Crawford, J. F., and Kelly W. J. Feb. 24, 1921. Filters having sheet filtering-materials.-A fil ter for boiler feed-water &c. comprises a casing with a compartment C containing a series of per forated discs, covered with a filtering-medium and arranged to form a corrugated column D having a central passage-way from which the filtered liquid is discharged through a pipe I to the lowe part of a receiving compartment E, the bottom of which is at a lower level than the bottom o the compartment C. The filter may be held in position by a screw H working through a stay G A weir J may separate a settling-compartment to which the liquid to be filtered is supplied, from the filter compartment.
Patent GB-549362-A (GB)
Title: Improvements in or relating to mothproofing wool and woollen materials
Filed: 1941-05-14
Abstract: 549,362. Treating wool. McLEAN, A., TRAILL, D., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 14, 1941, No. 6202. [Class 15 (ii)] [Also in Group VIII] Scoured wool is rendered moth-proof by treating it in an acidified aqueous formaldehyde solution having at 20‹C. a pH value not exceeding 1.0, and washing until free from the odour of formaldehyde and from acid. The acid may be sulphuric, hydrochloric, hydrobromic, acetic, lactic, oxalic, citric, phosphoric or formic acid. Salts such as sodium, potassium, magnesium or ammonium chloride or ammonium or aluminium sulphate may be added to the bath. The handle of the treated wool may be improved by treating it after washing with sodium cetyl sulphate. The material may be restored to the neutral condition by treatment with an aqueous solution of ammonia, potassium carbonate, sodium carbonate or sesquicarbonate, borax or ammonium carbonate.
Patent GB-1143222-A (GB)
Title: Switch actuator
IPC: H01H21/26
Filed: 1966-02-11
Abstract: 1,143,222. Retractive switches. TRIEX Inc. 11 Feb., 1966 [2 Sept., 1965], No. 6205/66. Heading H1N. A switch actuator is intended for connection to an accelerator pedal so that when the pedal is raised, the switch closes to signal deceleration. The switch 116 is mounted in a fixed cylinder 112 in which is slidable a cylinder 114 connected to the pedal. When the latter is depressed, a bellows 128 is partially compressed and the switch is opened by a rod 122. When the pressure on the pedal is partially relieved, the cylinder 114 returns to the left with the still-partially compressed bellows, so that the switch closes. After a time delay, the bellows expands and re-opens the switch. If the pedal is fully released, the switch remains closed until the pedal is again pressed. In a modification, Fig. 4 (not shown), movement apart of the cylinders creates a suction which causes a piston (168) to move to allow the switch to close. The piston is restored after a time delay to re-open the switch.
Patent GB-842395-A (GB)
Title: Improvements in and relating to positive clutches
IPC: F16D27/09
Filed: 1957-02-25
Abstract: 842,395. Clutches; locking rotary elements. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Feb. 25, 1957 [Feb. 25, 1956], No. 6318/57. Classes 80 (2) and 80 (4). A positive clutch or detent for the engagement of two relatively rotatable members 5, 7 comprises dog teeth 2, 3 on the members respectively which are adapted to be engaged by axial movement of member 7 on energization of a magnet coil 4 on member 5 or, alternatively, by some fluid-pressure device. Engagement other than in one or a predetermined number of relative positions of the members 5, 7 is prevented by a number of unequally spaced pins 6 on member 5 co-operating with corresponding holes or recesses 8 in the member 7. The holes 8 are somewhat elongated so that after the pins 6 engage therewith a small amount of relative turning between members 5, 7 is permitted to facilitate the tooth engagement. Automatic engagement and disengagement may be provided by a driven star wheel or cam disc actuating a switch for the coil 4. The teeth 2, 3 may be replaced by lugs or claws and a friction synchronizing ring may be arranged between the two members.
Patent GB-941558-A (GB)
Title: Process for making organophosphine-boranes
Inventor: HOFMANN EUGEN
IPC: C07F9/50
Filed: 1961-02-21
Abstract: A phosphine-borane of the general formula (H3BPR2)mQ, where Q is an unsubstituted or substituted hydrocarbon or heterocyclic group of valency m, m being 1 or 2, and R is hydrogen or an unsubstituted or substituted hydrocarbon or heterocyclic group, or two R groups are joined so that the phosphorus atom is a member of a heterocyclic ring, is made by reacting an addition compound of a phosphine of the formula (R2P) mQ and a boron trihalide with hydrogen or a metallic hydride, such as a complex metallic hydride, e.g., aluminohydrides or borohydrides of the alkali metals.  The process may be effected at room temperature or at temperatures up to 100 DEG C. If a metal hydride is used, boron alkyls, boron aryls or borate esters may be used as accelerators.  The boron halide is preferably boron trichloride and the phosphine is secondary or tertiary.  If m is 1, Q may be same as R.  The process may be used to make the polyphosphine boranes described in Specification 941,557. Thus Q, when m is 2, may be (CH2)p where p is for example from 1 to 10, or arylene.  For example, Q may be trimethylene, tetramethylene, pentamethylene and 1:4-phenylene.  The groups R may be aryl, cycloalkyl or aralkyl for example benzyl, or straight or branched alkyl groups containing up to 12 carbon atoms.  A detailed example of the preparation of diphenylphosphine borane is given, and other suitable starting materials are mentioned. Specifications 917,964 and 941,556 also are referred to.
Patent GB-177676-A (GB)
Title: An improved boat, or vessel, more especially intended for saving life at sea
IPC: B63B1/04
Filed: 1921-02-25
Abstract: 177,676. Taylor, L. Feb. 25, 1921. Propelling by rotary spheres.-A seat 5 for the occupant is suspended from a horizontal shaft 4 around which the outer envelope of the boat, which completely encloses the occupant, is adapted to rotate. The framework for supporting the outer envelope comprises hinged stays 2 attached at either end to the hub 14 and to the rim 1. This framework may be wholly collapsable or in part only to permit the occupant to take up his position. The outer envelope may be rotated by hand-gear comprising levers 16 pivoted to the shaft 4 and terminating in quadrants 15<a> gearing with the bevel wheels 15. Ventilators provided with float valves are mounted in the envelope, which is also provided with extensions in the form of leggings which permit the occupant to walk and carry the boat.
Patent GB-1040801-A (GB)
Title: Photoelectric scanning device for a registration bearer with marking-squares arranged in columns
Inventor: SPANJERSBERG ARIE ADRIAAN
IPC: G06K7/016
Filed: 1964-02-17
Abstract: 1,040,801. Sensing records. DE STAAT DER NEDERLANDEN, TEN DEZE VERTEGENWOORDIGD DOOR DE DIRECTEURGENERAAL DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Feb. 17, 1964 [Feb. 21, 1963], No. 6439/64. Heading G4M. Information is recorded by means of a mark (e.g. a cross) in one of index positions M, Fig. 1 (not shown), each of which has an associated timing mark P. The circuit of Fig. 2 (not shown), accepts any mark starting within the tolerance lines W, X. Marks P are sensed by a photo-cell F1, and a shaping circuit (V1 to V2) produces pulses which exist for the time that the area between lines W, X takes to pass through the sensing station. Each timing pulse advances a counter T and opens gate E10, so that the differentially-timed information pulse from F2 passes through the appropriate gate E0-E9 to the associated trigger Q0-Q9. In another embodiment, marks P lie on lines passing through the centres of marks M, and a circuit which is basically similar to that shown in Fig. 2 again accepts marks M which start within the tolerance lines W, X. In this circuit, an information pulse, occurring between the passage of lines W, X past the photo-cells, sets a bi-stable circuit, the output of which is gated by a timing pulse which exists during the passage of the last half of the index position M past the photo-cells.