baber/WOPTO huggingface dataset:
Patent GB-773257-A (GB)
Title: Improvements in the grinding of gear-wheels
IPC: B23F5/06
Filed: 1955-06-20
Abstract: 773,257. Gear-grinding. AEPPLI, A. June 20, 1955, No. 17806/55. Addition to 656,803. Class 83 (3). A method for grinding gear-teeth with two grinding-wheels which are moved axially to produce profile modifications, as in the parent Specification, comprises also displacing the wheels axially independently of each other to crown or round the teeth at each end. A motor 13, Fig. 5, rotates a shaft 15 driving a crank 16 to roll the work 4 through tapes 6. The shaft 15 is connected by a universal-joint 23 to a shaft 15<SP>1</SP> carrying a cam 17 acting through a lever 18 to move the wheel 11 axially to produce root and tip relief. The shaft 15<SP>1</SP> is carried in a bearing 24, which is displaced to produce crowning, by a lever 25 and cam 26 traversed axially with the work 4. A stop 28 nullifies the effect of the cam 26 at the centre-portion of the traverse. In a modification (not shown), the cam 26 is carried on a shaft oscillated by rackgearing on the work-slide 2. In a further modification, Figs. 2 and 7, a cam 42 is rotated similarly to the cam 17 to produce profile modifications, and a cam-slide 47 is reciprocated from rack-gearing 33 on the work-slide 2 to produce rounding through a lever 44. To allow for angular adjustment of a column 7, which carries the wheels 11 on slides 10 each on a slide 9 on a vertically-adjustable slide 8, the drive from the rack 33 is via bevel-gearing 55 on the axis X. In another modification, Fig. 10, the tip-modification is produced from cams 60a rotated, as by the shaft 15, Fig. 5. The cams 60a each rotate a lever 63, a shaft 72 carrying a crank 66, and a bell-crank 67, 68, thus moving the wheel 11 axially. The rounding is produced by rotating a bush 64 (in which the shaft 72 is mounted eccentrically), through a gear 75, a lever 80, cams 78a and a shaft 81 driven from the rack 33, Fig. 2. The tip-relief mechanism is duplicated because one wheel grinds a root and the other a tip. The rounding-mechanism is provided for only one wheel and conveyed through cranks 85, 86 to the other because both wheels operate at the ends of the teeth simultaneously. An adjustable-crank may be introduced between the cams 78a and the wheel 75 to adjust the amount of rounding. The rack 33 may be replaced by tape-mechanism or hydraulic or electrical means.
Patent GB-266598-A (GB)
Title: Improvements in clamping plates for iron construction supports, and a method of manufacturing the same
IPC: E01B11/12
Filed: 1926-07-16
Abstract: 266,598. Melaun, O. July 16, 1926. Rail joints.- Clamping-plates for use in constructional ironwork and as fishplates at rail joints are formed with the end portions only as claws and the centre portion depressed to receive a transverse wedge. They may be made from a profile section bar E with a deep central depression by severing lengths a, removing the metal b and c to form the claws and then severing the section transversely to form two claw plates K each with a central depression, Fig. 4, Alternatively, they may be formed from a section bar F, Fig. 7, by severing lengths c therefrom, pressing in a die to form central depression and removing the metal at g and h to complete central depression and claws; or the section bar may be formed with the claw forming recesses by rolling before severing. For heavy work the claw plates are provided with side faces and are formed from a rolled profile bar G, Fig. 15, by severing lengths, rolling down the ends of these lengths to form the shapes of claw desired, and then slotting the depression formed at Y to form a slot or slots J for the reception of the wedge.
Patent GB-1121426-A (GB)
Title: Apparatus for supporting a capstan of a tape recorder
IPC: G11B15/26
Filed: 1967-04-19
Abstract: 1,121,426. Tape recorders. SANKEI SEISAKUSHO K.K. 19 April, 1967 [1 July, 1966], No. 17866/67. Heading G5R. A tubular capstan 6 supporting a flywheel 8 fits over a vertical stationary supporting shaft 3. The weight of the capstan and flywheel is supported by a thrust ball 10 bearing on the top of the shaft 3 and on an adjustable screw 13 driven into the top of the capstan 6. An intermediate portion 3a of the shaft 3, opposite pinoh roller 11, is reduced in section.
Patent GB-103817-A (GB)
Title: Improvements in or relating to Rotary Distributors particularly for use in the Ignition of Internal Combustion Engines.
IPC: F02P7/00
Filed: 1916-12-12
Abstract: 103,817. Etablissements de Dion-Bouton Soc. Anon. Jan. 26, 1916, [Convention date]. Rotary distributors.-In distributors for use in the ignition of internal-combustion engines, the plug terminals are arranged in two or more groups c, d in different planes at the top of the terminalholder a, and two or more distributing-brushes f, f<1> are used
Patent GB-698999-A (GB)
Title: Electrical commutator machine
IPC: H02K23/54
Filed: 1951-07-27
Abstract: 698,999. Commutator dynamo-electric machines. WELTER, O. July 27, 1951 [July 28, 1950], No. 17881/51. Class 35. In a commutator machine having a rotor and stator located side by side and made of sintered material, the winding slots are of rectangular cross-section and extend radially. Fig. 1 shows a disc-shaped stator casing 1 with a hub 2 forming a bearing support for a rotor shaft 7. Figs. 4, 5 show machines having one stator with two rotors and one rotor with two stators respectively. The brush-gear arrangement for the machine having one stator with a rotor at each side in Fig. 4 comprises a hollow 15 accommodating two brushes which are urged by a single spring. The commutator is of the radial type and consists of segments 10 fixed on an insulating disc 12 by rivets 13. Fig. 6 shows how the stator and rotor coils are wound prior to their insertion in the slots. A board 32 is provided with holes to receive a number of pins to be arranged according to the size and shape of the coil required, e.g. coil 36 will be wound around pins 33 and so on. The coils are secured in their slots by a hood 18 of artificial resin. Quick stoppage of the rotor may be effected by arranging the rotor to be forced away from the stator (when the supply is off) and into contact with a brake lining by means of a spring (not shown). It is stated that the design of the machine described in this Specification is applicable to multiple winding machines, e.g. converters, D.C. machines and polyphase commutator machines.
Patent GB-731493-A (GB)
Title: A process and a machine for treating the outside surface of hat felts
IPC: A42C1/08
Filed: 1953-06-29
Abstract: 731,493. Hat pouncing machines. SCHWEIG, J. June 29, 1953, No. 17947/53. Class 63. In a process for treating the outside surface of a hat felt conforming to a body of rotation the generatrix of which has a straight side portion and an arcuate end portion which comprises rotating the felt and contacting its outside surface with a rotating grinding wheel, the grinding wheel 21 is moved along a guideway 24 parallel to the straight side of the nearer horizontal generatrix of said body to the base of said end portion, and is thereafter moved along the arcuate end portion of said generatrix and returned along the same path. As shown in Figs. 1 and 2, two independent sets are symmetrically mounted in apertures 15 in a frame 10, each set having an electric motor 11. A conical hat block 13 for receiving the hat felt is mounted on the motor shaft 12 which extends at an acute angle relatively to the longitudinal axis of the frame 10. This angle may be varied by sliding the motor 11 along an arcuate guide slot 14 on the frame 10. A longitudinal carriage 16 is movable in the aperture 15 between guide rods 17, 18. An adjustable transverse carriage 19 driven by a motor 20 is mounted on the carriage 16. The grinding wheel 21, whose periphery is covered with a strip of fish skin, is mounted on the shaft of the motor 20. The carriage 16 also carries a reversible motor 22 on the shaft of which is mounted a pinion 23 in mesh with a toothing 24 extending along the guide rod 17. The inner guide rod 18 carries a sliding piece 25 to which the carriage 16 is pivotally connected. The rod 18 is mounted in a carrying piece 26 which forms a stop to delimit the movement of the carriage 16 along a straight line path. In the alternative construction shown in Fig. 3 only one hat block 30 is provided. The block 30 is mounted in a frame 33 and driven by a motor 31. An auxiliary table 34 is pivotally movable about a vertical axis. A longitudinal carriage 35 is guided in a dovetail groove 34a formed in the table 34. A turntable 36, Fig. 5, is mounted in the frame 33 concentrically with the pivotal axis of the table 34. The turntable has a second guide groove 36a which may be aligned with the groove 34a. The common pivotal axis of the table 34 and turntable 36 passes through the centre of curvature of the hat block top of spherical segment shape. A manually adjustable transverse carriage 37 is mounted on the carriage 35 and carries the grinding wheel 38 and its motor 39. A reversible motor 80 mounted on the carriage 35 drives a pinion 42 in mesh with a toothing 41 provided on the side of the table 34. The toothing has a straight section 41a and. an arcuate section 41 b.
Patent GB-1286375-A (GB)
Title: Photographic film camera
IPC: G03B17/42
Filed: 1970-04-15
Abstract: 1286375 Photographic cameras IMPERIAL CAMERA CORP 15 April 1970 [17 April 1969] 18027/70 Heading G2A A photographic camera (10, Figs.1, 2, 7 (not shown) having means for supporting film 32 of the type having a perforation 34 per film frame is provided with double exposure/double film wind prevention means, there being a camming element 44 having first 48 and second 60 camming surfaces for driving a shutter latching element 54 from a locking to an unlocking position and for moving a winding means locking element 64 into and out of locking engagement respectively, and a finger 38 connected to the camming element sensing the film perforations 34. Sequence of operation. As shown, Fig.3, the shutter is locked against release and the film winding means is free to be operated. Rotation of a film wind wheel (30) rotates a ratchet 36 and brings a perforation 34 opposite the finger 38 which is thereby engaged and rotated slightly, Fig.8 (not shown), to the other end of a slot (96) in wall portion 94. Freeing the finger 38 allows a spring 68 to pivot the winding means locking element, or dog, 64 so as to bring a pawl 74 thereof into engagement with the ratchet 36 thereby preventing further film wind. Pivoting the dog 64 also results in pivoting the camming element 44 whereby the surface 48 thereof pivots the shutter latching element 54 and an extension 76 thereof frees a shoulder 78 of a shutter lever plate 80, so the shutter can now be operated. Depression of a shutter button 22 causes the plate 80 to be pivoted anti-clockwise as seen, as  element 98 thereof engaging an extension 62 of the camming element 44 which is thus pivoted to remove the pawl 74 from engagement with the ratchet 36 and to withdraw the finger 38 from the perforation 34, Figs.9, 10 (not shown). The plate 40 carries a shutter plate 104 pivoted thereon at 112. An end 116 of the plate 104 engages a locking lever 118 so allowing an aperture 108 in the plate 80 to be aligned with the camera aperture 109, before the shutter plate 104 slides by the locking lever 118 and is moved rapidly anticlockwise by a spring 110 take up the position of Fig.11 (not shown), thereby effecting an exposure. As the shutter button 22 rises, the spring 110 by virtue of the engagement of spring extension 122 with the camera housing, causes the plates 80 and 104 to return to their Fig.4 positions. At this time, the extension 76 snaps into place relative to the shoulder 78 of the plate 80. The finger 38 reengages the film surface.
Patent GB-1036201-A (GB)
Title: Clutches
IPC: F16D13/50
Filed: 1963-05-07
Abstract: 1,036,201. Friction clutches. BORGWARNER CORPORATION. May 7, 1963 [May 16, 1962], No. 18073/63. Heading F2C. In a friction clutch of the type in which a driven disc E is engageable with a flywheel B by a presser plate P actuated by engaging springs 18 and radial release levers 19, the cover plate C is secured to the face of the flywheel by lips 32, each providing a mounting segment 37 formed from a tongue portion 41 (not shown) of the cover plate body struck downwardly into the plane of the lips to lie radially inwardly of the body edge. The inclined lips 41 are formed by cutting curved recesses 40 in the side of the cover plate, which are pressed flat by a stamping tool to provide the segments 37 of uniform thickness and with holes for the reception of the securing screws 35, as described in Specification 1,036,202.
Patent GB-121323-A (GB)
Title: Improvements in or relating to Petrol Tanks for Aircraft.
Inventor: DRIVER FREDERICK PERCY
IPC: B64D37/26
Filed: 1917-12-07
Abstract: 121,323. Driver, F. P. Dec. 7, 1917. Tanks.-Petrol tanks for aircraft are provided with an emergency discharge orifice which is normally closed by a metal plate secured inside or outside the tank in such a manner that it can be ripped or torn away. The plate c, Fig. 1, is secured by solder and carries a ring or clip d to which a wire or other operating-member e is secured. The discharge pipe g, g<1> is enlarged at its upper end to receive the stripped-off plate, which remains attached to the tank at one end. In modified forms, the plate is provided with several rings or clips each connected by wires to the main operating-wire, and the plate may be released by pulling a wire through the solder or by tearing off a metal securing-strip.
Patent GB-170340-A (GB)
Title: Improvements in and relating to belting
IPC: F16G1/04
Filed: 1921-03-09
Abstract: 170,340. Taylor, J. March 9, 1921. Belts.-In a. belt having a number of elements 1 each formed of cords laid parallel and adjacent to each other and secured together by transverse wires 3, the ends of the wires are bent round through three right-angles in the edges of the belt as shown at 4, 5. The cords forming each element are stitched together at 2. The finished belt may be passed through a bath of oil and pressed between rollers to render it waterproof and smooth.
Patent GB-1466662-A (GB)
Title: Lattice girders
IPC: E04C5/065
Filed: 1973-04-17
Abstract: 1466662 Lattice girder UNIVERSAL BAR SUPPLIES Ltd 15 March 1974 [17 April 1973 4 June 1973] 18360/73 and 26544/73 Headings E1K and E1W A lattice girder of triangular cross-section for use in reinforced concrete has two sides 13, 14 each formed of rod bent to a wave-like formation with flat crests 16 or 60 which extend for at least 50% of the wavelength such that adjacent crests on the same side are spaced from each other and the overlapping portions of the crests on opposite sides are secured together without the use of a separate chord-bar. The ends of the crests have diagonal legs 18 or 61 joined to feet 17 or 63 in the plane of the girder's base. Each side may be either a continuous rod, Fig. 5, or a plurality of spaced elements, Fig. 15. The separate elements may be interleaved, Fig. 18, so that one end of the element's flat top 66 forms a crest on one side of the girder and the other end forms the crest on the other side. The feet 63 or 68 may extend transversely to the girder's length and may support reinforcing rods for concrete. A clip is disclosed, Figs. 7 and 18 (not shown) which spans the girder's base and supports reinforcement rods extending parallel to the girder.
Patent GB-792509-A (GB)
Title: Improvements in or relating to the catch bars of straight-bar knitting machines
Inventor: MONK BRIAN ARTHUR
IPC: D04B15/06
Filed: 1955-06-25
Abstract: 792,509. Knitting-machines. MONK (SUTTON IN ASHFIELD), Ltd., S. A. Aug. 27, 1956 [June 25, 1955], No. 18421/55. Drawings to Specification. Class 74 (2). The catch bar of a straight-bar machine is formed of a number of sections secured end to end by brackets which are connected to arms imparting the rising and falling motion to the bar, and a further bracket is secured to each section which is connected to an arm transmitting the advancing and withdrawing movement to the bar.
Patent GB-1001026-A (GB)
Title: Process for preparing 2,5-dihydrothiophene and various s-substituted salts
IPC: C07D333/08
Filed: 1962-05-14
Abstract: The invention comprises S-substituted 3-thiolenium halides of the formula <FORM:1001026/C2/1> in which R is a monovalent or bivalent aliphatic organic radical having 2 or more carbon atoms which may be substituted with a carboxylic group and may contain -O- and -S-groups, X is halogen, n is the valency of R and SC4H represents 3-thiolene (2,5-dihydrothiophene). These compounds and those in which R is a methyl group may be prepared by reacting an alkali metal mercaptide R(SM) with X-CH2-CH = CH-CH2-X. Alternatively the new compounds may be prepared by reacting 3-thiolene with RXn.  If the 3-thiolenium halides are heated the product is 3-thiolene. Preferably the thiolenium halides are prepared by treating the 1,4-dihalobut-2-ene in methanolic solution in an inert atmosphere at a temperature below - 10 DEG  C. and 40 DEG  C. with a methanolic solution containing the alkali metal mercaptide.  Examples are given of the preparation of compounds of the above formula in which the group R is methyl, ethyl, n-butyl, n-octyl, allyl, n-propyl, isopropyl-, isobutyl, n-amyl, iso-amyl, n-hexyl, n-octyl, n-decyl, n-dodecyl, tridecyl, cetyl, octadec-9-enyl, octadecyl, carboxymethyl, ethylene and reference is also made to compounds in which R is -C3H6-, -C4H8-, but-2-enylene, but-2-ynylene, 3 - oxapentamethylene, 3 - thiapentamethylene, hexamethylene, heptamethylene, octamethylene, 3,6 - dioxaoctamethylene and decamethylene.ALSO:Compounds of formulae R(-+SC4H6,X-)n in which R is a monovalent or bivalent aliphatic organic radical which may be substituted by a carboxylic group and may contain the groups -o-or-s-, X is halogen, n is the valency of R1 and SC4H6 is 2, 5-dihydrothiophere may be used as pesticides, germicides and fungicides.  They may be used in the form of solutions in water or other solvents or as mixtures with conventional pest control adjuvants, diluents or conditioning agents to provide compositions in the form of solutions, emulsions, dispersions, powders dispersible in solvent or as dusts.  The liquid compositions may further contain wetting agents, dispersing agents, emulsifying agents or suspending agents.  The compounds may be used with other pesticides e.g. metal dimethylthiocarbamates, ethylenebis-(dithiocarbamates), benzene hexachloride, chlorane and the phenyl N-alkylcarbimates.
Patent GB-319414-A (GB)
Title: Improvements in or relating to machinery for use in connection with the manufacture of tinplates or sheets and other like plates or sheets
IPC: B21B45/02
Filed: 1928-06-26
Abstract: 319,414. Thomas, H. S., and Davies, W. R. June 26, 1928. Feeding articles from stacks or piles by pusher devices engaging their edges.-Metal bars or billets for use in the manufacture of plates or sheets are removed from a furnace and placed in stacks of two or more on a bed 7 and are mechanically separated and passed singly through a bosh or equivalent cooling means. Endless chains 8 with projecting pusher teeth 8<a> carry forward the bars, separation being effected by stop members 23a carried on screw rods 23 mounted in screw boxes on an arch 22 at the forward end of the bed. The stop is adjusted so that its height above the bed is just in excess of the average thickness of the bars, and a counterweight 25<a> is provided to neutralize the torsional stress caused by the motion of the upper bars against the stop. In a modification the bed is mounted on springs so that it is depressed by the weight of the bars and the upper bar only moves forward, the lower bars being kept below the top of a stop member until the upper bar has been removed.
Patent GB-1396829-A (GB)
Title: Keyboar' apparatus for use when examining a test sample for  different charcteristics
IPC: G01N33/483
Filed: 1973-04-17
Abstract: 1396829 Counting apparatus SIEMENS AG 17 April 1973 [18 April 1972] 18545/73 Heading G4D Apparatus for use in counting, e.g. particles under a microscope, comprises a keyboard, a plurality of storage registers each connected to a key so as to count up the number of times that key has been operated, a common display which can be coupled to any one of the registers at a time to display the count held therein and means indicating which is being displayed. In a preferred arrangement the contents is displayed of the last counter to be incremented but alternatively all their contents may be displayed one after another in a continuous cycle or the display may be manually selected; switching may allow the mode to be changed. In Fig. 1 (not shown), a second display shows the total count in all the registers. A push button is provided which when pressed causes all the counts to be transferred to a data processor; by further switching the keyboard may also be used to input other data to the processor. The keys may be normally dark or gently illuminated by internal lamps and may bright up or flash when their respective register is being displayed; the keys may carry wording associating them with a characteristic, e.g. medical, to be counted in a test sample; such wording may be on readily changeable key faces; the keys may also carry numerals for the data input function. Alternatively means may be provided to project a display representing the characteristic either in plain language or symbols.
Patent GB-807270-A (GB)
Title: Improvements in photographic roll film sheet dispenser
IPC: G03B21/32
Filed: 1955-06-27
Abstract: 807,270. Roll holders. POWERS CHEMICO, Inc. June 27, 1955 [Nov. 4, 1954], No.18559/55. Class 18. [Also in Group XX] A dispenser for photographic roll film comprises a light-tight container 10 in which are rotatably mounted a number of rolls of film 26 of different widths or provided with different emulsions, and a number of feed rollers 30 any one film being selectively fed out of the container through a passage 32 and cut by a knife 92, and locking means 131 are provided to ensure that only one film can be fed at a time and the other films are retracted from the knife. The length of film fed may be indicated on a scale 78 and the knife forms with a spring plate 105 a light-tight seal for the passage. The container 10 is secured to a wall by brackets 12 and has a light-tight door 16. The various rolls of film 26 rest on rollers 24 and the films are led over the feed rollers 30, which are rotated simultaneously by an external handle and chain drive 63, and past guides 36 to the passage 32. The rollers 30 have recessed parts of smaller diameter in which take fingers 42 fixed to shafts 44 and normally urged out of the recesses by springs 48 so as to engage the undersides of the films and lift the films out of engagement with the feed rollers 30. To feed a film the selected shaft 44 is rotated anticlockwise by an external lever 129 to turn the corresponding finger 42 iuto the recess in the feed roller, as shown for the middle roller, allowing a roller 54 on arms 50 to rest upon the upper surface of the film and urge it against the feed roller. The pivoted knife blade 92 is then swung forwardly by a handle 98, opening the passage 32, the feed rollers are rotated by the external handle until the required length of film is delivered, and the knife returned to cut the film by coacting with a fixed blade 88. Each selecting lever 129 engages notches in a locking lever 131 pivoted at 133, the lever 129 which has been turned to select the film engaging an upper notch 141 when the locking lever is released after drawing it forwardly, allowing the other levers 129 to drop into lower notches 142 and preventing them being turned. A lever 115, Fig. 4, has a notch 123 in the path of the knife 92 so that the knife cannot be moved to open the passage 32 until the lever 115 has been raised. A link 111 on the lever 115 operates a pawl 107 to lock the feed rollers when the lever is raised. The length of film fed is indicated on a scale 78 driven from the feed rolls by a friction clutch 72 which allows the scale to be returned to zero by finger holes 84. A lamp 82 illuminates the scale.