baber/WOPTO huggingface dataset:
Patent GB-809661-A (GB)
Title: Improvements in or relating to seals
Inventor: SALMON BRYAN STANLEY
IPC: F16J15/44
Filed: 1956-03-02
Abstract: 809,661. Stuffing-box substitutes. ROLLSROYCE, Ltd. March 1, 1957 [March 2, 1956], No. 6730/56. Class 122 (5). A labyrinth seal 10 for preventing gas flow between a rotor 17 and a stator 20 of a gas turbine engine comprises a series of annular flanges on each part, those of the rotor having a greater depth than those of the stator and a pitch which is also greater than, but not a multiple of, the pitch of those on the stator. High-pressure air is introduced to cool the turbine disc 11, but is kept away from the low-pressure space 12 around the bearing 13 by the seal 10. Leakage is diverted through radially-disposed openings 21, 24 in the sleeve 20 carrying the stator flanges and in a member 23 which supports the stator element. The inner series of openings 21, may have chamfered edges to direct air towards the outer series. An extension 25 of the member 23 guides the air from the holes 21, 24 away from the bearing housing. Between the innermost of the rotor flanges 18 and the adjacent flange a gap 20A is formed having a width of at least twice the pitch of the rotor flanges and a similar gap is formed in the stator flanges arranged opposite the openings 21, 24. The seal may be stepped, the flanges on one side of the gap 20A being of different diameter from those on the other side of the gap. In a turbine engine employing first and second stage turbines separated by a diaphragm wall, a seal according to the invention may be used between the turbine rotor assembly and the diaphragm wall.
Patent GB-1351587-A (GB)
Title: Apparatus for testing moving metal sheets with ultrasonic testing  heads
IPC: G01N29/26
Filed: 1973-02-12
Abstract: 1351587 Ultrasonic inspection devices KRAUTKRAMER GmbH 12 Feb 1973 [11 Feb 1972] 6739/73 Heading H4D Apparatus for testing a moving metal sheet 20 comprises a row of ultrasonic testing heads 1 mounted on a slider 2, a drive motor 4 and clutch 5 for reciprocating the slider transversely with respect to the sheet motion, spring members 7 which act as reversing abutments for the slider, and limit switches 6 (only one shown) near the sheet edges for dis-engaging the clutch while the slider reverses its direction of travel. To accommodate lateral motion of the sheet edges, feelers 9 abutting the edges control hydraulic cylinders 8, 10 and pistons 8a, 10a which move the spring members 7 in a followup manner. Feelers 9 are initially set to a position dependent on the slider speed as determined by a tachometer 12. Cylinders 8 can be fixed at different points along guide 11a to allow for different sheet widths. Units 14, 15 monitor the sheet 20 feed rate and control motor 4 so that the zig-zag ultrasonic scanning tracks are distributed uniformly over the sheet.
Patent GB-994150-A (GB)
Title: Improvements in or relating to mountings for astronomical telescopes
Inventor: JENSCH ALFRED
IPC: G02B23/16
Filed: 1962-02-21
Abstract: 994,150. Telescope mountings. C. Z. JENA VEB. Feb. 21, 1962, No. 6797/62. Heading G2J. An equatorial telescope mounting has a declination shaft 2 rotatable in bearings 3 in a housing 6 to which is attached a counter-weighted arm 7 and a part-spherical position 9 of a polar shaft 11. The portion 9 is supported by an oil bearing 16 having ducts 13-15, this bearing having its centre substantially in coincidence with the centre of gravity of the rotatable telescope part.
Patent GB-758275-A (GB)
Title: Oil burners
Inventor: BARTLETT WILLIAM JAMES OSBORNE
IPC: F23D5/00
Filed: 1954-03-10
Abstract: 758,275. Liquid fuel burners. NU-WAY HEATING PLANTS, Ltd. March 9, 1955 [March 10, 1954], No. 6940/54. Class 75(1). An open tray type burner to which oil is fed by a pipe 6 has combined with the pipe 6 a cooling air jacket 8 which is supplied with air by a blower and which is open adjacent the exterior of the tray 4 and terminates immediately adjacent the discharge end of the pipe 6. The jacket 8 is connected to an air duct 5 through which air is supplied by a blower to the tray 4. The cooling-air jacket 8 and the pipe 6 are located in a radial recess 9 formed in the bottom of the tray 4.
Patent GB-1019677-A (GB)
Title: Improvements in or relating to containers
IPC: B65D17/34
Filed: 1964-02-19
Abstract: 1,019,677. Making tubular rivets; riveted joints; stamping. CONTINENTAL CAN CO. Inc. Feb. 19, 1964 [June 11, 1963], No. 6971/64. Headings B3A, B3Q and B3U. A method of forming a tubular rivet from a sheet comprises the steps of forming a largediameter relatively shallow protrusion and then acting on the protrusion in a series of compressive reforming steps to re-form the protrusion by decreasing the diameter thereof and forcing material of the protrusion laterally inwardly to form a closed tubular rivet having a wall thickness substantially the same as the thickness of the original sheet. The rivet is formed in a can end 15 which includes an end panel 19, having a score line 18 defining a tearstrip 19 and is used to attach a pull tab 24. An apparatus for forming the rivet comprises a first die set, Fig. 7 (not shown), consisting of parts 29 and 30 which form a part spherical protrusion 28. This protrusion is then re-formed in three stages by die sets of the type shown in Fig. 5 (not shown), which progressively reduce the diameter and increase the height of the protrusion. Each die set comprises a base 36, a pad 37 and a stepped die insert 40. There is a spring 43 under the insert which normally maintains the insert with its shoulder 44 abutting a shoulder 39 of the pad 37. A spring-loaded pressure ring 45 accommodates a punch 48 which has a bore 49 having a rounded lower corner 50. The metal of the protrusion is reformed into a tubular member with the metal in compression so that there is a slight increase in the thickness of the metal. Fig. 11 (not shown) shows the final shape of the rivet 23, and illustrates an upper die member 87 which has a projecting rib 88 to form the score line 18. A pull tab 24 is then placed over the rivet and the assembly is acted on by a punch and die unit in which a pressure ring 92, Fig. 12 (not shown), has a shape for engaging the pull tab 24 around the rivet 23 and a punch 94 having a convex end 95 which effects a slight outward folding of tubular body portion 82 at its intersection with the end wall 83 to form a bead 96. A final die set generally similar to that shown in Fig. 12 but having a flat-ended punch effects a further outward folding to define a definite annular bead which clamps the pull tab to the tear strip 19. In a modification, Fig. 14 (not shown), the die insert of the third reforming stage has a recessed tap and in the bore of the punch there is a further punch, complementary in shape to the die insert so that a tubular rivet is formed which has an upstanding annular bead. In a further modification, Fig. 15 (not shown), the pull tab has an upstanding flange around the rivet receiving hole which reinforces the tab.
Patent GB-838393-A (GB)
Title: Improvements in a method and means for operating ceramic kilns
IPC: F27B9/26
Filed: 1957-03-04
Abstract: 838,393. Cam mechanisms. DRAKENGREN, E. W. March 4, 1957 [March 3, 1956], No. 7032/57. Class 80 (3). [Also in Groups XI and XII] A mechanism for imparting both rocking and longitudinal displacement to a shaft 41 comprises a drum 37 eccentrically mounted on a rotatable shaft and having a helical ridge 38 engaged by a follower 39 rotatably mounted on the end of a lever 40 fixed to the shaft 41.
Patent GB-172562-A (GB)
Title: Improved cabinet talking machine
IPC: G10K13/00
Filed: 1921-03-04
Abstract: 172,562. Lucock, W. M. March 4, 1921. Sound magnifying and directing appliances.- A cabinet gramophone contains within the cabinet a long insulated sound-conduit B, leading downwards from the tone-arm to a rectangular horn C at the bottom of the cabinet. The walls of the horn, which may be made of wood or fibre, are bent convexly.
Patent GB-140079-A (GB)
Title: An improved device for tilling apparatus, to effect automatic lifting as well as adjustment in side direction and inclination
IPC: A01B63/06
Filed: 1920-03-09
Abstract: 140,079. Chapron, B. A. J. Jan. 25, 1919, [Convention date]. Addition to 139,813. Void [Published under Sect. 91 of the Act]. Cultivators; harrows; ploughs; motor implements; adjusting parts of implements.-In tilling-apparatus comprising a plough or other' implement connected to a tractor, a special supporting-attachment is provided in combination with the implement, tractor, or coupling-device to take up the vertical forces caused by excessive tractive stress' &c. and to maintain the implement at a constant working depth. Fig. 1 shows the attachment supporting the coupling and lifting lever 15 described in the parent Specification. Two wheels 92 are mounted on bent arms 91 revolubly supported in sleeves 90 which are pivotally mounted on the shaft 49 that carries the lever 15 at the rear of the tractor frame a. The sleeves 90 are connected by a shaft 93 carrying a stop 94 which is provided with a screw-threaded rod 96 passing freely through the lever 15 and surrounded by a spring 95. When the lever 15 has been lifted through a short distance it engages a nut 99 on the rod 96 and lifts the wheels 92 &c. For the purpose of preventing rearing of the tractor, the spring 95 may be acted upon by a projection from the frame a, instead of the lever 15.
Patent GB-1028845-A (GB)
Title: Improvements in or relating to domestic hot-water systems
IPC: F24D3/08
Filed: 1963-02-23
Abstract: 1,028,845. Tubular heat exchangers; water heating systems. E. H. PORTER. Feb. 14, 1964 [Feb. 23, 1963], No. 7386/63. Addition to 960,010. Headings F4A and F4S. The heat exchanger in the domestic hot-water system of the parent Specification comprises an assembly of tubes 31 connected into the boiler circuit and extending between cylindrical headers 30, the tubes passing through a water jacket 25 connected in the tank circuit of the system. The tubes are arranged in a ring surrounding a central tube, and the tubes of the ring may be outwardly bowed.
Patent GB-143347-A (GB)
Title: Mechanism for stretching and guiding fabrics in bleaching, dyeing, finishing and like machines
IPC: D06C3/00
Filed: 1919-03-25
Abstract: 143,347. Thornber, J., and Henshilwood, A. B. March 25, 1919. Feeding webs. - Apparatus for transversely stretching and guiding fabrics in bleaching, dyeing, finishing, and other machines consists of a set of rollers at each edge of the fabric, the rollers in each set being adjustable with respect to each other to vary the sinuosity of the path of the fabric, and each set of rollers being adjustable angularly with respect to the path of the fabric. In one form, Figs. 1 and 2, each set of rollers 2 comprises three upper and two lower rollers adjustably mounted in vertical and horizontal slots d, e respectively in brackets 3 which are angularly adjustable by bolts 7 on supports 4 which are carried by a cross-rod 6 and are adjustable towards and away from each other by means of a right and left handed screwed rod 5. In another form, Fig. 9, the angular adjustment of the brackets 3 is effected simultaneously by worms 9 on a cross-shaft engaging toothed quadrants 3<a> formed upon the brackets. One or more of the rollers 2 may be positively driven from a suitable shaft 12 of the machine by bevel-gears g, h which drive a cross-shaft 13 to which is splined bevel-gears meshing with bevel-gears on the pivot stud 7<a> of the brackets 3, the studs 7a driving by bevel-gears 16, 17 one of the rollers 2, to which other rollers 2 may be geared. In another form, Figs. 4 and 6, in which only four rollers 2 are employed in each set, the two outer rollers are adjustable in vertical slots d<1> in the bracket 3, and the two inner rollers 2 are carried by a plate 20 rotatably mounted in the bracket 3 and operated by a worm 22 and worm-wheel 21 so as to vary the sinuosity of the path of the fabric, the angular adjustment of the bracket 3 on the support 4 being effected also by a worm 24 and worm-wheel 23.
Patent GB-526065-A (GB)
Title: Improvements in or relating to processes of isolating physiologically active materials from animal tissue
IPC: C12N1/00
Filed: 1939-03-07
Abstract: 526,065. Extracting therapeutic substances from animal tissue. TENNANT, W. J. (Armour & Co.). March 7, 1939, No. 7444. [Class 81 (i)] Physiologically active materials are isolated from cellular animal tissue by finely mincing the tissue without addition of a substantial amount of water, adding an acid or alkaline solution to cause swelling and rupture of the cells and to produce a plastic or gelatinous mass and then separating the protein cell material from the liquid by precipitation of the cell material, e.g., by addition of a salt. Liver is a suitable animal tissue, and sulphuric acid and sodium chloride are suitable swelling and precipitating agents respectively. Details of the working up of the solution are given in the Specification. Specifications 378,399 and 445,275 are referred to.
Patent GB-330525-A (GB)
Title: Improvements in and relating to coin-freed apparatus for vending newspapers and articles of like form
IPC: G07F11/58
Filed: 1929-03-07
Abstract: 330,525. Smith, G. Manch 7, 1929. Delivery of articles stored on endless bands.- In apparatus for vending newspapers or the like comprising holders attached to endless chains mounted on sprocket wheels within a casing having a. delivery opening, an ejector, which normally occupies an empty holder opposite the delivery opening, is withdrawn therefrom, after operation of the coin release, by means of a handturned shaft, which also moves a slider or pawl to turn the sprocket wheels so that a. charged holder is brought opposite the delivery opening, and then causes the ejector to enter this holder so that the newspaper therein is delivered. Clip holders t are carried by chains p passing round sprocket wheels l, n After release by the coin a shaft 8 is turned by a handle 12 and by means of a crank 17 and lever 35 and aided by a spring 11 draws an ejector v out of the holder opposite the delivery opening 28. A cam on the shaft 8 then pushes down a slider y against the pull of a spring 2 and the lower end x of the slider engages one of a series of pins w on the sprocket wheel n and turns the latter, thus moving the chains to bring the adjacent holder opposite the outlet 28. The ejector is then moved downwards by the crank 17 to discharge the contents of this holder. Coin-slit closing devices.-A pivoted arm 37, which rests on the contents of the holder in the delivery position and of the next holder, and' therefore falls when the apparatus requires recharging, is connected by a link 39 and a sliding rod 56 to bell-crank levers, one of which lifts an indicator to a position behind a window 58 and the other moves a pin to prevent insertion through a coin slot 19. Coin action, weight; coin-discharging mechanism.-The coin inserted through the slot 19, passes through a stationary shoot 20 and pivoted shoot 21 and engages pins 22 on a lever 24, which is turned about, its pivot by the weight of thecoin. Its motion is communicated by a link 25 to an arm 16, the end of which is thus moved from engagement with a stop 15 on the shaft 8 so that the latter is released. During rotation of the shaft 8 the stop 15 engages a lever 30 connected by a rod 31 with the pivoted shoot 21, so that the latter is moved to withdraw the coin from the pins 22 and allow it to fall into a coin box.
Patent GB-774740-A (GB)
Title: Improvements in or relating to thread-cleaning devices
Inventor: BERNHARD WERNER H
IPC: B65H63/06
Filed: 1955-03-15
Abstract: 774,740. Thread cleaning apparatus. WANNER AKT.-GES. March 15, 1955, No. 7509/55. Class 120 (2). A thread cleaning device having two plates, of which at least one is formed with a wedgelike surface and is adjustable with respect to the other plate and whose inner surfaces are parallel to and face one another and define a slot of variable width, through which the thread being cleaned is guided, is characterized in that a displaceable spacer wedge is arranged between the inner surfaces of the two plates and is displaceable parallel to the planes of the plates for varying the distance between the cleaning surfaces. As shown plates 1 and 2 form between their inner edges a thread cleaning slot. The plate 2 is fixably connected to a screw bolt 4 and the plate 1 is loosely mounted on the bolt 4. A cap-shaped nut 5 is provided on the bolt 4 for fixing the plates 1 and 2 in their relatively adjusted position. A spacer wedge 12 is arranged between the two surfaces la and 2a of the plates 1 and 2 and by means of this wedge it is possible to adjust the distance between the plates 1 and 2. A threaded bolt 13 is axially displaceable in a bore in the stationary plate 2 and is adapted to be locked in any desired position by a screw 20. An adjustment nut 14 is rotatably adjustable on the bolt 13 and is operatively connected to the spacer wedge 12 in such a manner as to be capable of rotating freely with respect to the wedge 12 whilst however transmitting its axial movement to the spacer wedge 12. The nut 14 is provided with a graduated scale which co-operates with a drum 15 to indicate the adjustment made. The drum 15 is rotatably adjustable on the projecting end of the bolt 13 and can be fixed in any desired position by means of a screw 15a. Spacer plates 16 of various thicknesses may be provided to allow additional adjustment. In a second embodiment the wedge is moved by means of a pinion and rack mechanism.
Patent GB-152926-A (GB)
Title: Improvements in or relating to electric starting and regulating switches
IPC: H02P1/02
Filed: 1920-03-13
Abstract: 152,926. Margerison, C. J., and Shenton & Co., F. J. March 13, 1920. Regulating-switches.-A starting and regulating switch for electric motors and the like, of the kind in which the brush and its contacts are covered by a disk of insulating-material, is characterized by the provision of a housing 1<a> formed by means of a flange 10 on, or by a recess in, the face of the switch base 1. This housing contains the contact studs 8 of the resistances 3, the brush pillar 7, and the spring-pressed brush 6. A protecting disk or cover 9 slips over the pillar 7 and is retained by a screw 14, the disk, pillar, and brush rotating together. The resistances are wound on a porcelain slab 4 carried inside the main casing 2 by bolts 5 secured to the base. The outside leads 17 pass through a perforation in the base plate, and are knotted or anchored before being secured to the terminals, so that the connexions are relieved from external strain.
Patent GB-1143481-A (GB)
Title: Fluorocarbon perfluoroalkanesulfonates
IPC: C07C303/28
Filed: 1966-02-21
Abstract: 1,143,481. Fluorinated alkane sulphonates. MINNESOTA MINING & MFG. CO. 21 Feb., 1966 [5 March, 1965], No. 7597/66. Heading C2C. The invention comprises sulphonate esters of the formula (R # SO 2 OCH 2 ) m Q<SP>1</SP>, where Rf is a fluorinated C 1-8  acyclic or cyclic alkyl group containing at least 2 fluorine atoms and not more than 1 hydrogen atom, Q<SP>1</SP> is a highly fluorinated alkyl group of valence m containing at least 44% by wt. fluorine selected from (a) C 2-17  perfluoroalkyl groups, (b) C 4-11  perfluorocycloalkyl groups, (c) C 2-18 -#-hydroperfluoroalkyl groups having an even number of carbon atoms, (d) C 3-11 -2-hydroperfluoroalkyl groups, (e) a chlorodifluoromethyl group, (f) a 2,2-dichloroperfluoroethyl group, (g) C 3-6 -3-oxa-perfluoroalkyl groups, (h) C 4-6 -perfluoro-oxa-cycloalkyl groups, (i) C 1-10  perfluoroalkylene groups and (j) C 6-12  perfluorocycloalkylene groups, and m is 1 or 2. Compounds of the general formula (RfSO 2 OCH 2 )mQ, where Q is the same as Q<SP>1</SP> and may also be a trifluoromethyl group, are prepared by reacting substantially stoichiometric amounts of an alkane sulphonyl halide R f SO 2 X, where X is Cl or F, and a carbinol Q(CR 2 OH)m in the presence of an aliphatic tertiary amine, preferably triethylamine. The esters of the formula (RfSO 2 OCR 2 )  m Q<SP>1</SP> are fluoroalkylating agents and react with nucleophilic reagents to give products containing the group Q<SP>1</SP>-CH 2 -. Thus the esters react with primary and secondary amines to give fluoroalkylated amines, with thiols to give fluoroalkyl sulphides, with hydroxy compounds to give fluoroalkyl ethers, with eneamines of ketones and aldehydes to give fluoroalkylated carbonyl compounds, with diesters of orthophosphorous acid to give fluorinated alkanephosphonates, with alkali metal halides and thiocyanates to give fluoralkyl halides and thiocyanates, with arene sulphonic acid alkali metal salts to give fluoroalkyl arene sulphonates and with hydrazines to give fluoroalkylated hydrazines.
Patent GB-513268-A (GB)
Title: Improvements in sound reproducing apparatus
IPC: H04R9/04
Filed: 1938-03-11
Abstract: 513,268. Loud speakers &c. LEACH, F. E., and BICKET. H. March 11, 1938, Nos. 7628 and 30241. [Class 40 (iv)] The moving coil a of a loudspeaker, pick-up &c. is secured co-axially to a vibrating shell b, Fig. 1, or cup p, Fig. 3, the closed end or apex of which is connected rigidly to the diaphragm. D by a rod d in line with the axis of the coil. The rod d may pass freely through the inner pole-piece e and be supported at each end by flexible spiders f, l. The rod d may be secured by a chuck d<SP>2</SP> to a rib D<SP>1</SP> on the diaphragm, and several coil units may be connected to separate areas, of different natural frequency, of a large diaphragm. Reference has been directed by the Comptroller to Specifications 24278/10, 256,443, 312,950, [all in Class 40 (iv)] 378,601, and 437,605 and U.S.A. Specifications 1,855,168, 1,878,232 and 1,889,748.
Patent GB-217330-A (GB)
Title: Improvements in fire extinguishing devices
IPC: A62C17/00
Filed: 1923-03-16
Abstract: 217,330. Kinnard, E. H. March 16, 1923. Firing-appliances. -A fire-extinguisher adapted to throw fire - extinguishing substance by explosive means, comprises a pistol the barrel of which is formed by the casing of the fire-extinguishing cartridge. A striker 16, sliding in a slotted bearing 15, is drawn back and cocked by a handle 31 and is maintained cocked by a pin 19 engaging a notch 23 in a pivoted catch 22, which can be drawn down by a link 24 and pivoted lever 25 operated by trigger 27. When the striker has been thus released, it is driven forward by a spring 21 against a percussion cap 8 which explodes the charge 6 and thus drives out the cartridge. A spring 30 restores the parts to their normal position with the pin 19 engaging a notch 21a in the catch 22. A recoil spring 32 is provided. The casing 1 is retained in a housing 11 by studs and bayonet-slots 10. The outer end of the casing may be flared or a centrally disposed spreading device may be used. The casing may be sealed by wax &c. A trigger guard is provided.