baber/WOPTO huggingface dataset:
Patent GB-1521583-A (GB)
Title: Apparatus for feeding webs
IPC: B65H23/188
Filed: 1976-04-13
Abstract: 1521583 Web feeding apparatus HONSHU PAPER CO Ltd 13 April 1976 14992/76 Heading B8R An apparatus for feeding a web 12, Fig. 4, provided with spaced registration marks (not shown) to a blank die-cutting machine 11, Fig. 2, at a speed commensurate with the speed of the die cutting cylinders comprises a drive roller 16 driven at a constant speed and provided with a resiliently deformable sleeve 17 and a pressure roller 18 having a rigid surface, the rollers being urged radially relatively to one another to vary the speed of the web fed to the machine. In operation the web marks are scanned by photo-electric cells 49 (through apertures in web guide plate 47) which generate pulses applied to a control device 46. The cutting cylinders are associated with a further pulse generator 45, whose pulses are applied to the control device 46 compared therein and an output signal generated to control the speed of an inching motor 37 which indexes a gear 35 fast with an eccentric shaft 27 on which is mounted the pressure roller 18. Rotation of the eccentric shaft 27 varies the interaxial distance between the rollers 16, 18 and the speed of the web fed to the die-cutting cylinders.
Patent GB-981018-A (GB)
Title: Improvements in or relating to the manufacture of printing cylinders
IPC: B21D22/14
Filed: 1960-04-28
Abstract: 981,018. Making printing cylinders; welding by fusion; altering physical structure. J. V. BAILEY, G. C. FORTIN, and G. F. FOXON. April 17, 1961 [April 28, 1960], No. 14995/60. Headings B3A, B3R and B3V. A method of making a printing cylinder comprises forming a metal sheet into a cylinder, longitudinally welding the seam of the cylinder and flow turning the cylinder. A cylinder longitudinally welded by an argon-shielded arc is placed on to a mandrel mounted in a lathe and flow turned using a round-nosed circular form tool hydraulically loaded against the outside diameter and traversed along the length of the tube. The flow turning causes the cylinder to change its stress pattern, conform to the shape of the mandrel, the wall thickness to decrease, the length to increase and the welded seam to become stress relieved, more homogeneous and helical in form around the cylinder. The shape and size of the mandrel may be such that the internal finish and diameter of the cylinder is suitable for fitting or shrink fitting without further machining to a printing machine core or mandrel. In a modification the metal may be magnesium and the cylinder etched.
Patent GB-707980-A (GB)
Title: Improvements in or relating to corrugated sheeting for roofing, walls and other similar purposes
Inventor: DEW RAYMOND MARCUS
IPC: E04D3/366
Filed: 1950-06-16
Abstract: Snap-on cap members in the form of a trough having its longitudinal edges turned inwards are made of unplasticized vinyl chloride polymers.  In fastening roof or wall sheets 7, 8, e.g. of iron, asbestos cement, <PICT:0707980/IV(a)/1> <PICT:0707980/IV(a)/2> polymethyl methacrylate, polymethyl a -chloroacrylate, or laminated phenol-aldehyde products, the cap 9 is used to cover clamp members 5, fastened to beams or purlins 4, or intermediate supplementary clamps 10 (Fig. 3).  Specification 707,964 is referred to.
Patent GB-108777-A (GB)
Title: Improvements in Apparatus for Aiding the Locomotion of Injured Persons.
Inventor: BLATHERWICK HENRY
IPC: A61H3/00
Filed: 1916-10-23
Abstract: 108,777. Blatherwick, H. Oct. 23, 1916. Foot-cycles.-For aiding the locomotion of a person who has had a leg partly or wholly amputated, a scooter is provided with a standard carrying a support designed to accommodate the knee, stump, or base of the injured limb. The standard D is pivoted at E to the foot-plate A of the scooter and is held in desired position by a link F pivoted to the plate at G and fitted at H with a split ring adjustable upon the standard. The pillar K of the support M is adjustably clamped within the standard, and the support may take the form of a knee rest, or of a cupshaped member carrying a bag of textile material to receive the stump of a limb, or of a ring-shaped piece adapted to fit the person's body when the leg has been wholly removed. According to the Provisional Specification, means may be provided for locking the wheels of the scooter.
Patent GB-599395-A (GB)
Title: A loom shuttle guard
IPC: D03J1/24
Filed: 1945-06-14
Abstract: 599,395. Loom shuttle guards. SWAIN, T. June 14, 1945, Nos. 15053 and 24475. [Class 142 (iii)] A shuttle guard of the type which can be moved to an inoperative position against the action of a spring, returning automatically to its operative position when the loom is started, comprises a front rod B attached to a rear rod C, the ends of the latter being rotatable in end brackets E, F, secured to the slay cap A, the bracket E being fitted with a clutch member K which is engaged by one end of the rod B through the action of a spring L encircling the rod C. The clutch member K consists of a short tube through which the rod C passes, the tube being formed at one end with a projecting ledge and a locking groove. The rod C rests in a hook in a centre bracket G and a pin may project laterally from the rod C or from a spacing bar to pass beneath and bear against the underside of the bracket G to support the guard in its operative position. In a modification, the guard comprises two separate and independently-operated guards, and the clutches and springs are preferably arranged at the outer ends of the guards. According to the second Provisional Specification, the clutch members have ratchet teeth.
Patent GB-946672-A (GB)
Title: Improvements relating to gravity tipping wagons
Inventor: PEARSON JOHN BROOKE
IPC: B61D9/02
Filed: 1959-05-02
Abstract: 946,672. Tip-wagons. ROBERT HUDSON Ltd. Aug. 2, 1960 [May 2, 1959], No. 15066/59. Heading B7L. Relates to a gravity tipping wagon in which the tipping of the wagon body may be effected positively by manually operable means. As shown in Fig. 1, the wagon body F is retained in a vertical position by pivoted catches Lx, LLx, on the chassis C, engaging a body stop I. The catch handles L, LL, are connected by slotted links N, NN, to a lever J for operating an hydraulic control valve G, the latter being connected to a hand pump communicating with an oil reservoir and also to a pair of hydraulic cylinders A, AA, Fig. 3, pivoted at B to the chassis. Each cylinder, e.g. cylinder A, can be selectively raised by operating a pull handle D so that its ram, e.g. Ax, engages an associated lug, e.g. E, on the body F. When the appropriate catch is released and the ram so engaged the body is positively tipped by operating the hand pump. Referring to Fig. 4, each body release catch is retained in the release position by a catch M engaging a shaft O rotatably mounted on the chassis C. A slotted lever S secured to the shaft O is connected to a handle Q in turn connected to a catch P, for holding the body F in its tipped position, through the agency of a lug K. Also secured on the shaft O is a finger R so that when the handle Q is pulled the catches M and P are released to allow the body to return and be retained in the vertical position. The arrangement of handles at each side of the body is such that the body tips to that side which is opposite to the side at which the handles are operated.
Patent GB-972154-A (GB)
Title: Improved electrolytic cell for the production of sodium
Inventor: GALLINGER CLYDE TOULSON
IPC: C25C7/00
Filed: 1962-04-18
Abstract: <PICT:0972154/C6-C7/1> Sodium, produced electrolytically from fused NaCl with added CaCl2, is collected through a riser pipe 9 provided with a rotatable and vertically movable scraper 15, each blade of the scraper having at least one vertical sharp cutting edge closely adjacent the inner wall of the riser pipe with the edge extending over the whole length through which there is a significant temperature change in the rising sodium. Na and Ca are generated at the cathode and rise through the pipe 9, the Ca as it cools being precipitated on the wall of the riser pipe from whence it is removed by the scraper 15 to prevent plugging and returned to the bath where it re-forms CaCl2.  The scraper shown in Fig. 3 has three blades, one or two of which may have openings 17, Fig. 2.  The scraper can be operated at periodic intervals either manually or automatically and can be first rotated to scrape the inside of the pipe then raised a few inches and dropped to loosen any material that may have attached itself to the blades.  The cell has a cylindrical graphite anode 3, an annular steel cathode 4, a porous metal diaphragm 6, an inverted trough 7 for collecting Na and a chlorine dome 10.
Patent GB-593635-A (GB)
Title: Improvements relating to electric hot plates and the like
IPC: H05B3/72
Filed: 1945-06-15
Abstract: 593,635. Electric hot-plates. REVO ELECTRIC CO., Ltd., FELTON, A. E., and HARDING, A. N. June 15, 1945, No. 15204. [Class 39 (iii)] An electric hot-plate has a sheet metal top a against which abut curved sheet metal flanges b with spaced projections or teeth b<1> riveted or welded to the top a to form circular or helical channels receiving heating resistances c and insulating material d. A. peripheral metal flange a<1> on the top a and the flanges bare welded to a sheet metal base plate e. The metal sheets are of stainless steel or " Inconel " (Registered Trade Mark). The projections b<1> are riveted in fan-shaped slots a<2> in grooves a<3> in the plate a. The base plate and flanges may be held by a nut f<1> on a bolt f welded to the top plate. The flanges b may be held by projection welding, i.e. forming projections on the underside of the top plate or top edges of the flanges or both and collapsing the projections by welding. The heating elements may be in three or more parts connected in series or parallel. Specifications 516,364 and 522,427 are referred to.
Patent GB-470432-A (GB)
Title: Improvements in or relating to optical projectors
IPC: F21V5/00
Filed: 1936-05-29
Abstract: 470,432. Spotlights. GENERAL ELECTRIC CO., Ltd., and BEGGS, S. S. May 29, 1936, No. 15239. Drawings to Specification. [Class 75 (iv)] A spotlight, adapted to project a beam with an angle of divergence which may be varied from less than 15‹ to more than 30‹ so as to illuminate substantially uniformly a surface contained wholly within the angle of divergence and arranged sufficiently distant from the spotlight and perpendicular to its axis, comprises a source of light and an optical system whose distance apart can be varied, the source being small compared with the optical system and in the form of a plane radiating so that the intensity of light emitted at an angle # to the normal to the plane is proportional to cos. #, (Lambert's Law), the normal to the source being the axis of symmetry of the optical system, and the latter being such that, for a particular position of the source relative to the optical system, tan # = k sin #, where # is the angle between the axis and the emergent ray, and k is independent of # and less than unity. The particular position of the source is preferably that corresponding to the maximum angle of divergence. The source of light may comprise an incandescent electric light bulb containing a substantially flat arrangement of filaments, and may have a spherical recuperating reflector behind it. The optical system may comprise a continuous or prismatic lens, for example, a thin square or circular plate with a plane face perpendicular to the axis on the side towards the source and with circular prisms on the remote side.
Patent GB-937633-A (GB)
Title: Improvements in or relating to change-speed hubs
IPC: B62M11/14
Filed: 1962-04-19
Abstract: 937,633. Variable speed gear; ratchet clutches. FICHTEL & SACHS A.G. April 19, 1962 [April 21, 1961], No. 15385/62. Class 80 (2). In a change-speed hub gear, without a backpedalling brake, wherein shift is produced by back-pedalling, a shift-limiting ratchet between parts of the gear and hub respectively moved and not moved by the shift back-pedalling limits the amount of back-pedalling to that required for shift. Drive from a sprocket 1 passes through a drive member 2, a bush 4 to either a ring gear 5 or a planet carrier 7 of a three element train having a sun gear 20 rigid with the hub spindle 16. The planet carrier 7 is connected through a pawl 8 to the hub shell 9 and is formed with a threaded extension 50 on which is threaded a bush 14, secured against accidental rotation by a friction spring 15. Back-pedalling causes engagement of a ratchet 10 to rotate a cam sleeve 11 producing axial movement of a shift block 12 to engage the bush 4 to either the ring gear or the planet carrier. During back-pedalling the planet carrier rotates backwards and the threaded bush 14, being frictionally held by the spring 15 moves axially to contact the bearing member 17 and limit the amount of back-pedalling to that required for shift. Forward pedalling allows the bush 14 to return to its original position. In modifications, movement of the bush 14 is produced by cam surfaces on the bush and the planet carrier; or the movement is limited by a jamming roller clutch. In a second embodiment, Fig. 4, the planet carrier 2 is the drive member, and a clutch sleeve 26 can engage either the drive member 2 or the ring gear 5. The sleeve 26 is splined to a pawl carrier 28, which carries pawls 8 coacting with the hub shell 9, having a threaded extension 60 for the limiting bush 14. Shift is produced by axial movement of a thrust block 25 and a rod 24, within the axle 16, from a camming sleeve 36 driven, on back-pedalling, from a ratchet 23.
Patent GB-417001-A (GB)
Title: Improvements in and relating to electric contactors
IPC: H01H50/20
Filed: 1933-05-27
Abstract: 417,001. Electromagnetic switches. WHYMAN, F., Arncott, Greenway Road, Timperley, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. May 27, 1933, No. 15389. [Class 38 (v).] An electric contactor having a movable contact carried on a spring-biassed knuckling member which is pivoted to a rocking lever adapted to be actuated by a reciprocating plunger or piston to open and close the contactor, has lost motion provided between the rocking lever and the actuating plunger or piston and a resilient coupling between the members having lost motion for transmitting the closing force to the movable contact. As shown in the Figure, the movable contact 1 is carried by a knuckling member 3 pivoted at 4 to a lever 5 which is pivoted to the fixed frame 6 a spring 12 being interposed between the members 3, 5. The arm 5 is operated by means of a rod 14 pivoted thereto at 13 and having an extended head 21, a spring 22 being interposed between this head 21 and a sleeve 14 screwed into the lower end of the core 15. Thus, when the core is attracted on energization of the electromagnet 17, a certain amount of lost motion occurs between it and the operating rod 14 and the spring 22 is compressed so that even after the contacts are worn away to a certain extent a substantially constant contact pressure between them is maintained. The invention may be applied to contactors other than those operated or controlled electromagnetically.
Patent GB-1529649-A (GB)
Title: Television-based alarm system
IPC: H04N5/14
Filed: 1977-04-14
Abstract: 1529649 Intruder alarm systems ROBERT BOSCH GmbH 14 April 1977 [17 April 1976] 15502/77 Heading G4N An alarm system for detecting a movement or change in the field of view of a television camera 1 comprises a discriminator 5 or 6 responsive to the video signal and adapted to produce a signal upon the occurrence of a predetermined characteristic in the picture content of the video signal, means 7 for providing a succession of reference values each derived by averaging the number of discriminator signals produced during a plurality of equal time intervals of predetermined duration, means 8 for comparing the number of discriminator signals produced during each of a succession of time intervals, each equal to the predetermined duration, with the currently provided reference value to produce respective difference values, and means 10, 12 and 14 for evaluating the difference values according to a predetermined criterion to produce an alarm 15 when the criterion is satisfied.
Patent GB-332340-A (GB)
Title: Improvements in and relating to methods of and apparatus for starting and synchronizing dynamo-electric machines
IPC: H02K47/02
Filed: 1929-05-21
Abstract: 332,340. British Thomson-Houston Co., Ltd., and Whitaker, F. P. May 21, 1929. Synchronizing dynamo-electric machines. - A method for controlling the D.C. voltage of a rotary convertor or like machine during starting and synchronizing when starting from the A.C. side comprises a resistance 2 in series with the field winding 3, a contactor 4 with operating coil 6 which is normally closed to short circuit the resistance 2 through contacts 5 and 4 and a relay 9 which closes when the D.C. voltage rises to a pre-determined value. The closing of relay 9 energizes the operating coil 6 of contactor 4, opens contacts 5 and places a predetermined amount of resistance 11 in the field circuit. When the D.C. voltage falls the relay 9 opens and contactor 4 closes again short circuiting resistance 2. The change over switch 10 shown in the " start" position is moved over after starting is completed cutting out contactor 4 and relay 9.
Patent GB-178359-A (GB)
Title: Improvements in a writing pen nib
IPC: B43K1/01
Filed: 1921-06-08
Abstract: 178,359. Bothun, H. L., and Langseth, M. P. June 8, 1921. Reservoir nibs.-A writing-nib is provided with a body part 3, Figs. 1 and 3, similar and adjacent to the curved split nib part 1 to facilitate the retention of an increased ink supply, an offset portion 4 on the part 3 being provided to hold the part 3 parallel to and suitably spaced from the part 1, and one of the parts being shorter than the other to facilitate writing. The body part 3 may be on the convex side of the part 1 as shown in Fig. 1, or on the concave side as shown in Fig. 3. The parts 1, 3 mav be secured together by soldering, welding, or otherwise.
Patent GB-1421825-A (GB)
Title: Method and apparatus for extruding a backing layer onto channel cloth
IPC: B29C48/08
Filed: 1973-04-03
Abstract: 1421825 Pile fabric coating apparatus RIEGEL TEXTILE CORP 3 April 1973 [4 April 1972] 15876/73 Heading D1L Apparatus for applying a backing layer of plastics material to the back 13a of a base strip of channel cloth 13 having a plurality of parallel layers of weather stripping pile 13b projecting from its surface comprises in sequence a feed roller 19 provided with pins 19a on its surface to grip the cloth without crushing the pile, an extruder 45 provided with die head 45a for extruding a thin film 13c (e.g. of approx. 8 mil thickness) onto the back of the cloth 13, cooling roller 47 for cooling and setting the extruded layer; and a draw roller 64 also provided with gripping pins 64a which do not pierce the cooled layer, rollers 19 and 64 being driven via sprockets 20 and 65, chains 21 and 66 and drive sprockets 22 and 22a at speeds such that the draw roller stretches the channel cloth 13 therebetween to align the pile 13 in parallel rows and maintain it in this condition during coating and setting of the backing layer. As illustrated the channel cloth is preferably heated (e.g. to 300F) by heater plate 27 before extrusion of the plastics layer, the plate 27 being adjustable vertically and/or horizontally to regulate the amount of heat imparted to the cloth. The coated cloth is pressed against the surface of cooling drum 47 by arcuate plates 46 while the rows of pile pass between grooves (46a) (Fig. 4, not shown) provided in the plates. The extruded layer is suitably polypropylene.
Patent GB-1111135-A (GB)
Title: Improvements in processing polybutadiene
Inventor: MILNER PETER WILLIAM
IPC: C08L21/00
Filed: 1966-04-12
Abstract: A composition comprises a stereospecific polybutadiene having a 1,4 addition structure of at least 80%, and up to 20% by weight of the polybutadiene of an ethylene-vinyl acetate copolymer. The polybutadiene may be blended with oil-extended styrene-butadiene rubber and other conventional materials.
Patent GB-658061-A (GB)
Title: Improvements in and relating to stapling machines
IPC: B25C5/02
Filed: 1949-06-15
Abstract: 658,061. Stapling devices. GOODMAN, L. L., and VANDERVIEREN, F. A. J., (trading as GOODMAN & VANDERVIEREN), and VANDERVIEREN, A. A. June 15, 1949, No. 15973. [Class 89(iii)] In a stapling device in which a driving plunger slidable in a housing 8 is raised against a spring by. a lever 7, the lever and housing form a unit which is slidably mounted on and detachably secured by a screw 12 to a magazine arm 4 pivoted on a base 1.
Patent GB-368615-A (GB)
Title: An improved winding key for gramophone spring motors and the like
Filed: 1931-06-02
Abstract: 368,615. Hand driving-mechanism. BINNS, J., 15, Chapel Street, Holywell Green, near Halifax, Yorkshire. June 2, 1931, No. 16030. [Class 136 (ii).] In hand-crank mechanism for winding gramophone spring motors &c. and of the type having slipping clutches to prevent overwinding, the slipping clutch comprises two jaws or clutch levers pivoting on the crank and engaging a collar integral with the spindle adapted to wind the spring motor, adjusting-means engaging the ends of the levers being mounted in the crank structure for regulating the grip of the levers on the collar. The crank B consists of a casing in which are mounted a pair of gripping-levers D, which are pivoted on pins E engaging slots E<1> to allow limited longitudinal play, and are recessed at F to engage frictionally with a collar G on the spindle A, the friction being adjusted by means of a tapered nut K and a screw L. In order to enable the crank to be turned in a reverse direction to unscrew the spindle A from its connection with the spring motor, a spring washer N, caused to move with the crank B by a projection P, is formed with a projection S engaging a recess T in the collar G. In forward driving, slip is indicated by the clicking of the projection S into the recess T. Alternatively, the reverse drive may be effected through a blade spring between the levers D, engaging a recess in the perimeter of the collar G and a recess in one of the levers D.
Patent GB-1024491-A (GB)
Title: Succinimide derivatives and their preparation
Inventor: DAVIS MARTIN ARNOLD
IPC: C07D209/54
Filed: 1964-04-17
Abstract: The invention comprises spiro [dibenzo[a,d]-[1,4] cycloheptadiene - 5a  - succinimide] and spiro [dibenzo[a,e]cycloheptatriene - 5a  - succinimide], pharmaceutical preparations containing them, and their preparation by heating a compound of the general formula <FORM:1024491/C2/1> with concentrated hydrochloric acid.  The preparation of the starting materials is described.  The compounds of the invention are anti-convulsants and may be administered orally in the form of pharmaceutical preparations (e.g. tablets and capsules) containing them together with a carrier.
Patent GB-138021-A (GB)
Title: Saliva ejector, for use in dental treatment and the like
IPC: A61C17/08
Filed: 1919-06-26
Abstract: 138,021. R÷nn, J. A. June 26, 1919. Liquid-withdrawing apparatus. - Saliva-ejecting apparatus adapted to be held in the mouth by resilient means comprises two bent perforated tubes 1, 2 reaching from the first molar of one side to the eye-tooth of the opposite side. The Figure shows apparatus intended for the left side. Prolongations 3, 4 are bent up over the front teeth of lip and are united at 5 and connected to the suction tube 6. If desired, the portions 1 and 2 may be omitted or horizontal tubes may extend throughout the entire length of the jaw. Springs 7, 8 connected by a piece 9 in contact with the upper jaw hold the apparatus in place. A plate may be fixed to the inner tube 2 to keep the tongue away from the teeth.