baber/WOPTO huggingface dataset:
Patent GB-751936-A (GB)
Title: Magazine for releasable loads
IPC: B64D1/04
Filed: 1954-10-04
Abstract: 751,936. Dropping from aircraft. ROBERT, R. A., and MATGE, P. P. Oct. 4, 1954 [Nov. 30, 1953], No. 28526/54. Classes 9(1) and 9(2) A rocket magazine adapted to be housed in the fuselage 12 of an aircraft and having means for releasing the rockets as described in Specification 713241 comprises unrights 14, 15 sustaining horizontal guides 16, 17. Threaded rods 21, 22, 23. 24 connecting the girders 16, 17 to girders 19, 20 are rotatably mounted in the girders. Mounted on the rods by means of threaded nuts 25, 26 is a support plate 27 covering the horizontal area of the magazine. From the plate 27, which is provided with reinforcing ribs and re. cesses to clear adjacent parts of the magazine, depend front arms 30<SP>1</SP>, 30<SP>2</SP>, 30<SP>3</SP>, 30<SP>4</SP>, 30<SP>5</SP> and similar rear arms 30<SP>1</SP>, &c. (not shown) connected. to the uppermost rockets 31, the next row of rockets being suspended from the rockets 31. The magazine outlet is closed by a frangible wall 32 sufficiently rigid to withstand the normal stresses on the aircraft, but of such material that it is broken by rockets moving to the release position. The wall 32 may consist of several panels. By rotating the threaded rods, the support 27 is moved progressively downwards so lowering the rockets to the firing position and, after all the rockets are released, the support closes the magazine with its under surface continuing the fuselage wall 13 as the wall 32 had previously done, the various guides being accommodated in the recesses in the support 27. The support arms 30 may be retractably mounted, Fig. 4, so that, when the last rockets have been released. springs 47, 50 cause the arms to rotate about their respective pivots until they are housed in suitably shaped recesses in the support 27.
Patent GB-481661-A (GB)
Title: Improvements in or relating to electrically propelled road vehicles of the three-wheeled type
IPC: B62D61/08
Filed: 1936-10-15
Abstract: 481,661. Vehicle spring suspensions. MORRISON & SONS, Ltd., A. E., MORRISON, A. E., and MORRISON, A. C. Oct. 15, 1936, No. 28552/35. [Class 108 (ii)] [Also in Group XXXI] In an electrically-propelled road vehicle of the three-wheeled type in which the single wheel is supported or carried from one side only, the wheel is suspended from a spring or springs supported by a part on or associated with the vehicle framework and connected to the movable wheel carrying part or member in such a way that the spring action is effective directly over the wheel centre. In Fig. 4, the wheel 31 is shown mounted on a stub-axle 32 on a carrying member 33 connected by pivoted links 34 to a bracket 35 on the chassis frame, the upper end of the member being bent over the wheel and attached by straps 38 to a half-elliptic spring 37 connected by shackles 40 to frame uprights 39. In the arrangement shown in Fig. 6, the stub-axle 43 is formed on an arm 44 bent at right-angles at its end 44a and pivoted in brackets 46 on the vehicle frame, an upright 47 rigid with the arm carrying a pin 48 so that the connection to a quarter-elliptic spring 49 on the frame is directly over the wheel centre. Fig. 1 shows the fore part of an electrically-propelled vehicle in which the front steering and driving wheel 12 is suspended in the manner of the invention, being carried by a chain casing 24 pivoted to the lower end of a downward extension 1b of the steering head 1a, an upwardly extending arm 15 rigid with the casing being connected by a shackle 14, directly over the wheel centre, to a quarterelliptic spring 13 carried by the steering head.
Patent GB-959085-A (GB)
Title: Improvements in or relating to control systems having a step-by-step switching device
IPC: B66B1/16
Filed: 1960-08-17
Abstract: 959,085. Lift control systems. SCHWEIZERISCHE WAGONSUND AUFZUGEFABRIK A.G. Aug. 17, 1960 [Aug. 25, 1959], No. 28556/60. Drawings to Specification. Heading B8L. In a lift control system the position of the car in the shaft is determined by a circuit including static switch elements which respond to operation of an impulse generator carried by the car and operated by plates mounted in the shaft. The Specification described in detail a system incorporating " nor " and " memory " elements.
Patent GB-1205367-A (GB)
Title: An electronic watch
IPC: G04C3/00
Filed: 1969-06-05
Abstract: 1,205,367. Electronic watches. UNITED STATES TIME CORP. June 5, 1969 [June 21, 1968], No.28624/69. Heading G3T. In a battery driven electronic watch in which a setting staff, 32 carries gears, e.g. the minute wheel and pinion 30, 34, maintained at all times in the gear train, on movement of the setting crown 46 to an outer setting position a disc 60 is urged by a spring 62 to couple the staff 32 to the crown 46, and a contact 101 carried by the spring 62 is disengaged from a contact 103 to disconnect the battery from the electronic circuit driving the watch balance. At the same time a detent 70 Fig. 3 (not shown) on the spring 62 engages a finger on the balance 120 to prevent its movement during setting of the hands.
Patent GB-323543-A (GB)
Title: Process for the manufacture of new vat dyestuffs of the anthraquinone series
IPC: C09B1/38
Filed: 1928-10-05
Abstract: 323,543. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Oct. 5, 1928. Anthraquinone vat dyes are obtained by splitting off the acid residue or residues from the acylamino group or groups of 1 : 1<1>-or 2:1<1>-dianthraquinonylaminocarbazoles containing at least one acridone ring in the 3 (CO : 4 (NH) position and at least one acylamino group. The parent materials may be made by the process of Specification 305,082, and the splitting off of the acid residues may be effected by heating with concentrated sulphuric acid. The conversion of a dianthraquinonylamine into the corresponding carbazole and the subsequent hydrolysis of the acylamino group or groups may be carried out in a single operation. According to examples, (1) the condensation product from trichloranthraquinoneacridone (made by chlorinating anthraquinone-1 :2-acridone with sulphuryl chloride or chlorine in nitrobenzene solution in the presence of a trace of iodine) and 1-benzoylamino-5-aminoanthraquinone is treated with sulphuric acid monohydrate, oleum is then added to form the carbazole, and finally water is added and the reaction liquid is heated to hydrolyse the acylamino group; the product dyes cotton from the vat in brown shades which, according to the strength of the dyeing, pass into a fast reddish-grey to black shade on exposure to air, and (2) the carbazole obtained in accordance with Specification 305,082 from the condensation product of trichloranthraquinoneacridone and 1-benzoylamino- 4-aminoanthraquinone is heated with concentrated sulphuric acid; the product dyes cotton in brown shades, which change to bluish-grey on exposure to air.
Patent GB-744591-A (GB)
Title: Improvements in ultrasonic vibratory devices
IPC: B06B3/00
Filed: 1950-11-23
Abstract: 744,591. Bonding plastics. RAYTHEON MANUFACTURING CO. Nov. 23, 1950 [Nov. 23, 1949; Nov. 16, 1950], No. 28685/50. Class 42 (1). [Also in Groups XXIII and XXXIX] A tool 18 for bonding plastics is driven by a magnetostrictive (or piezo-electric) ultrasonic generator 10 and an exponentially tapered coupling 14 described in Specification 744,653. The junction of the generator and the coupling is an antinode at the working frequency. The coupling is supported at the same antinode by a tubular member 38 of tapered section providing a quarter wavelength path for the vibrations. The thick end of the tubular member 38 approximates to a node and is attached to a casing comprising a cylindrical cover 24 and an end piece 29. The casing is held together by studs 39 which are threaded into the tubular member 38 and are held by nuts 40. An inlet 33 and an outlet 34 allow circulation of a cooling liquid.
Patent GB-1468196-A (GB)
Title: Coffee making machines
IPC: A47J31/42
Filed: 1974-06-28
Abstract: 1468196 Coffee maker SOC NORMANDE DE SERVICES 28 June 1974 [30 May 1974] 28733/74 Heading A4E A coffee-making machine has an upper rotatable element or cone 7 and a lower rotatable element or disc 8 defining a centrifuging enclosure 6 in which ground coffee is infused in hot water, at least a part of at least one element being resilient whereby said elements may be separated to define an ejection space through which a coffee infusion is centrifugally forced, and control means for moving enclosure 6 between a first position in which the infusion is delivered to an annular collecting channel 18 and a second position in which coffee grounds may be delivered to a receptacle 30 below said annular channel. Coffee beans drop from hopper 1 into grinding enclosure 2, the quantity being controlled by flap 3 to be ground by screw 4 whose pitch increases progressively upwards and which is part of shaft 5. Support 9 is journalled on shaft 5 driven by motor 21 and includes balls 10 which under the action of centrifugal force move away from shaft 5 up slopes 11 to engage conical surface 12a of element 12 to move the latter towards cone 7. In its lower position Fig. 3 (not shown) element 12 is rotated by friction with element 13 which is keyed at 14 to the shaft, drives disc 8 by friction, and free to rise up the shaft. Disc 8 then presses on cone 7 to lift it against the action of spring 16. Ground coffee leaves enclosure 2 via aperture 19a and drops through apertures 7b in cone 7 into enclosure 6 which is rotated by shaft 5 so the coffee forms a compressed ring (32) against the cone 7 and disc 8. Water from pipe 25 passes through non-return valve 26 into chamber 23, is boiled by an electrical heater and is delivered via pipes 27, 28 into enclosure 6. The water forces its way through the coffee and through an annular gap e.g. 0À2 mm high between disc 8 and cone 7 into channel 18 and then via pipe 29 into a cup. Support 9 is braked by brake 15 causing balls 10 to move inwards and element 13, disc 8 and cone 7 to descend, cone 7 rotating at a different speed to disc 8. The coffee grounds are ejected through the widened annular gap, after the ejection of the grounds the disc 8 approaches cone 7 rotating at a different speed to the cone to detach by friction the last grounds. In Fig. 5 (not shown) a rigid disc (8a) below resilient disc 8 limits the size of the annular gap. Motor 20 may be asynchronous with electrical braking and a separate variable speed direct current motor for driving screw 4 may be provided. A programmer may be provided for continuous operation. Cone 7 may be keyed to the shaft and element 13 journalled on the shaft.
Patent GB-410677-A (GB)
Title: Improvements in or relating to hobs, cylindrical milling cutters, metal slitting saws, reamers and the like
IPC: B23C5/00
Filed: 1933-10-17
Abstract: 410,677. Milling-cutters, saws, reamers, &c. CHALLIER, M., 82, Via Don Bosco, Turin, Italy. Oct. 17, 1933, Nos. 28735 and 28736. Convention dates, April 8, and July 29. [Class 83 (iii).] A hob, milling-cutter, metalslitting saw, reamer, or like cutter is relieved by a process wherein a profile 6, Fig. 2a, identical with the profile to be formed on a cutter tooth is moved so that a point in its plane moves along a fixed straight line or directrix, while the plane of the profile is always maintained radial to the cutter blank. In this way the profile of the relieved cutter remains constant through successive radial sharpenings. If the side faces of a relieved tooth, Fig. 3 are formed by straight line generators such as A, An, and B, Bn, and if A B, A1 B1, denote successive radial positions of the tooth face at successive sharpenings then the profile of the tooth varies during the life of the cutter, since if AB = AnBn then AB is of different length from A1 B1, A2 B2 &c. According to the invention a, b, Fig. 4, is the projection of the cutter profile on a transverse plane tangential to the helix of a hob or on the transverse plane of a cylindrical cutter and represents the initial cutting face, and c d is the position of the cutting face at the end of the life of the cutter. al b1 a2 b2, are projections of the cutter profile at intermediate sharpenings. In order that all these projections may be of precisely equal lengths the line b b1 b2 .. d is slightly curved while a c, the directrix along which the profile is guided to form the relief is a straight line. In a modification, the directrix along which a point D on the profile is guided may lie between the top and bottom of the profile, Fig. 5b, or at the bottom of the profile, or outside the profile, Fig. 8b. In this case all lines such as C, C1, C2 .. Cn representing the positions of corresponding points at different sharpenings are curved. During the life of the cutter the clearance or relief angle gradually diminishes as shown in Fig. 11. In order to limit this variation of relief angle the tooth may be formed in two or more parts, Fig. 13, such as uv, vw, each having the same initial relief angle #. The part wz of the tooth beyond the sharpening zone may be further cut away at the rear as shown. The invention may be applied either to integral or inserted tooth cutters, and the sharpenings may be in non- radial planes, but in this case constancy of the profile is not maintained.
Patent GB-224720-A (GB)
Title: Improvements in machines for polishing sheet material
IPC: B24B7/12
Filed: 1923-11-14
Abstract: 224,720. Weill, S. E. Nov. 14, 1923. Addition to 205,313. Belt gearing; tension and guiding arrangements.-In a machine as described in the parent Specification, for polishing sheet metal &c. by means of a rotary mop d, which is carried by a shaft j mounted in a frame g pivoted on a shaft h, the tension of the belt s', which drives the polishing-mop, is maintained in all angular positions of the frame g by two pulleys v, v<1> mounted on the frame, one on each side of the shaft h, and a pulley v<3> over which the belt passes from an overhead driving pulley.
Patent GB-778961-A (GB)
Title: Improvements in and relating to compression refrigerating plants
Inventor: SINCLAIR WALTER ROBERT
IPC: F25B41/04
Filed: 1954-10-06
Abstract: 778,961. Refrigerating. LIGHTFOOT REFRIGERATION CO., Ltd. Oct. 6, 1955 [Oct. 6, 1954], No. 28781/54. Class 29 In a compression refrigeration system comprising compressor 1, condenser 9, refrigerant receiver 5, expansion valve 6, 'and evaporator 3, high pressure refrigerant vapour is injected into the evaporating circuit through a pipe 13, leading from the receivers', containing a valve 12 operable automatically in response to variations in the temperature of the liquid medium, undergoing cooling. The valve 12 is preferably motorized and controlled by a potentiometer 14 the adjustment of which is affected by a thermostat responsive to either the cooled liquid or the liquid to be cooled. The valve 12 may be servo-operated. The evaporator 3 may be of the shell and tube type in which the refrigerant surrounds the tubes. According to the Provisional Specification, the system may cool a gaseous or solid medium.
Patent GB-722703-A (GB)
Title: Improvements in and relating to cranes
IPC: B66C23/36
Filed: 1951-11-23
Abstract: 722,703. Mobile jib cranes; overhead travellers. BRITISH HOIST & CRANE CO., Ltd., and EVANS, P. N. Nov. 23, 1951 (Nov. 24, 1950], No. 28797/50. Class 78 (4). Mounting and supporting.-Outriggers 18, Fig. 2, for extending the ground engaging base of a crane are moved to a stowed position on the crane chassis when the crane is to be moved on its road wheels 14, Fig. 1. The outriggers are carried by vertical pivots from lugs 12a, Fig. 2, and carry at their ends screw jacks 19 formed either with feet 49 (as shown at the left of Fig. 2) for engaging the ground or bogies 50 (as shown at the right of Fig. 2) for engaging a narrow gauge rail track. The rear of the trailer chassis shown is then supported either by jacks 20, Fig. 1, or by one of the road wheels 14 placed on a stub axle 15, Fig. 1. The trailer chassis is also provided with jockey wheels 16. Jib cranes: folding and collapsible, luffing and slewing. Overhead travellers : supporting booms.-The mast of the crane illustrated is formed in two parts, a lower part 22 pivoted about a horizontal axis 39 to fold on top of the chassis and an upper part 21 supported by a slewing bearing from the lower part. The jib 28 comprises two box girders bolted together at 29 and is detachable from the mast. When the crane is to be assembled the mast 22, 21 is first raised about its heel pivot 39 by securing the block 33 of the backstay to the mast and winding a hand winch 41 controlling the backstay. The rope from the hand winch 41 is then reeved to cause plates 30 at the heel of the jib to slide up rails on the mast until they can be secured in position on a collar 31. The jib is then pivoted into the position illustrated in Fig. 1 by reeving the backstay cable 32 about the hand winch 41. The jib 28 and the upper part 21 of the mast are slewed by a cable 42 passed around a sheave 27 on the mast and around a winch driven by an engine 17 on the chassis. The backstay cable 32 may also be operated from a winch driven by the engine 17 in which case the cable passes over one of several pulleys 23 at the lower end of the mast. In a construction described in the Provisional Specification the mast is raised by a screw-and-nut device on the chassis. Overhead travellers: horizontal travel of load. Lifting gear.-The jib 28 is formed with a track on which runs a trolley 35 traversed by a cable 46 passing around a jib-end pulley 47, a pulley 25 on the mast, one of the pulleys 23 at the foot of the mast and a winch 44 driven by the engine 17. A hoisting cable 45 passes from a further winch 43 driven by the engine 17 over one of the pulleys 23, over a pulley 26 on the mast, over a pulley 36 on the trolley 35, under a load block pulley 37, and over a further pulley 36 on the trolley to be dead-ended on the jib.
Patent GB-701980-A (GB)
Title: Typewriter and ink ribbon mechanism therefor
IPC: B41J32/02
Filed: 1950-11-24
Abstract: 701,980. Typewriters. KORESKA, R. Nov. 24, 1950 [Nov. 24, 1949], No. 28838/50. Class 100 (4). [Also in Group VIII] An ink-ribbon mechanism in which an endless ribbon is advanced in uniform steps is provided with a container storing the major portion of the ribbon and a ribbon folding device periodically gripping the ribbon and folding it into uniform folds to form a zig-zag pack held in the container with sufficient pressure to cause a slow movement of the entire ribbon pack through the container. As shown in Fig. 1. the endless inkribbon 4 is folded in zig-zag manner in a container 1 from which it is guided over rollers to a fork 10 at the printing position and is then fed by feeding rollers 6, 7, looped over a jockey pulley 8 to give a slight tension to the ribbon, and thence back to the box 1. Folding is effected by a two prong fork 20, Fig. 2, reciprocating and simultaneously twisting across the inside of the container. The fork 20 is mounted on the centre of a gear wheel reciprocating across a stationary rack. In a modification the fork 20 is mounted on the end of an oscillating arm, the fold being retained by a pair of turnstiles 43, 44, Fig. 6, which also urge the folds of ribbon into the box. An alternative device to retain the folds comprises a pin 30, carried on a slide 31, Fig. 4a, which is lifted over an approaching loop of the ribbon 4, by a wedge 34 which travels with the fork 20. The return of the wedge 34 is unobstructed since a pawl 33 on the slide 31 freely pivots about point 32. In a further embodiment, Fig. 7a (not shown), the folding is effected by two interfolding levers pivoted on either side of one end of the container 1 and which alternately pivot to draw the ribbon into a zig-zag fold. In this embodiment the folded edges of the ribbon are retained in the pack by spring catches, synchronously lifted as the fold is made. In attaching the mechanism to a typewriting machine the folding device, e.g. arm 60, Fig. 8, is oscillated by a crank disc 62 driven by a worm wheel 61 connected by a shaft 63 to the drive of feed roller 7. The intake of the ribbon is slightly faster than advance of the ribbon 4 by the feeding rollers 6, 7 to keep a slight tension in the ribbon. The loopforming jockey pulley 8 is thereby pulled clockwise until a pin 65 on the jockey arm 9 engages the shaft 63 and draws the worm 61 away from the disc 62 so the pulley 8 travels anti-clockwise to reform the loop while folding arm 60 is rendered inoperative. Alternatively the disc 62 may work in co-operation with a pawl and ratchet drive, the pawl being disengaged when no feed into the container is required. In order to use both top and bottom halves of the ribbon it may be turned over 180 degrees as at 72.
Patent GB-601552-A (GB)
Title: Improvements in the artificial manufacture of quartz crystals
IPC: C30B29/26
Filed: 1945-10-31
Abstract: Quartz crystals are grown by heating in an autoclave, for several hours under high pressure, to a temperature between 300 DEG  and 450 DEG  C., a quantity of fused silica together with a crystalline seed of quartz and an aqueous solution of a water-soluble salt of a silicic acid.  The seed of quartz grows at the expense of the fused silica by deposition of crystalline quartz on the seed.  The process may be repeated several times, with fresh charges of fused silica and solution, to build up the seed to a required large size.  The seed may be cut from a natural quartz crystal or from a crystal formed by the process of the invention.  A crystal growth promoter, such as potassium or sodium acid fluoride, is preferably added.  Four rods of fused silica (5 cm. x 1 cm.) and a plate of crystalline quartz (40 mm. x 30 mm. x 1mm.) are supported by a cradle of copper or silver wire in an aqueous solution of sodium metasilicate (25 grm./litre) and potassium acid fluoride (125 grm./litre) contained in a cylindrical steel bomb of 500 ccs. internal volume.  The volume of solution Vl is so chosen that <FORM:0601552/III/1> is between 1.3 and 1.4, where Vb is the internal volume of the bomb minus the volume occupied by the fused silica, seed crystal, and support wires.  The bomb is then heated to a temperature between 350 DEG  C. and 360 DEG C. for 18 hours; this treatment increases the thickness of the crystal by about 1 mm.  If the plate is cut from another crystal approximately parallel to a positive rhombohedral face, the growth is such that the seed develops mainly by increasing its thickness.  The seed may however be introduced in ground spherical shape, which develops into a double-ended pyramid having rhombohedral faces.  It is desirable to perform one or two heating processes with the fused silica and solution in order to cover the sides of the bomb with a layer of crystalline quartz before actually commencing the growth of a seed.  The fused silica and seed crystal may be placed in widely separated parts of the bomb and the latter heated non-uniformly so that the part at which the fused silica is located is hotter than the part at which the seed crystal is located.  The process may also be carried out using sodium hydroxide solution; this reacts with the fused silica during the heating to form a soluble silicate.  The crystals obtained may be used in the generation of electric oscillations.