baber/WOPTO huggingface dataset:
Patent GB-713401-A (GB)
Title: Improvements in or relating to a method of and apparatus for grinding or polishing the two faces of a moving horizontal ribbon of glass simultaneously
IPC: B24B7/24
Filed: 1952-10-03
Abstract: 713,401. Photo-electric control systems. PILKINGTON BROS., Ltd. Oct. 3, 1952 [Oct. 16, 1951], No. 24875/52. Class 40 (3). [Also in Groups XXIII and XXXV] Local sagging of a moving horizontal ribbon of glass 3, Fig. 1, due to wear of the lower tools 2 in an apparatus for simultaneously grinding or polishing both faces of the glass is prevented by using the deviation of the glass to control the illumination of photo-electric cells to initiate resetting of the tools. A sensing head 7 rigidly connected to a pivot pin 8, Fig. 4, is swung about the axis of the pin into contact with the lower face of the glass as each tool 2 passes it, by means of a spring-loaded lever 20 which is oscillated intermittently and in timed relationship with the movement of the tools by a cam 22. The lever is coupled to an arm 15 fixedly mounted on the pin 8 by a spring 19, a pivoted support 17 and an adjusting screw 16. When sagging occurs, the movement of the head 7 is arrested before the full travel normally produced by the cam 22 has been completed and the lever 20 moves relatively to the support 17 against the resistance of the spring 19 to permit the light from a collimator 30 to pass through a slot in a mask 34. The light is directed to one of six stationary photo-electric cells 40 according to which tool is adjacent the sensing head by a totally reflecting prism 36 rotating in step with the tools. The signal thus produced is amplified to operate a time switch 43, Fig. 6, which closes a circuit through slip rings 51 to an electromagnet 50, Fig. 3, on the appropriate tool head for a predetermined time. A spring-loaded pawl 47 mounted on a lever 46 which is continuously oscillated by a stationary eccentric 53 as it rotates with the tool head is displaced by the magnet into engagement with a ratchet wheel 45 on a nut 4 to rotate the latter and lift the tool. A fixed screen 35, Fig. 4, prevents passage of light to the prism as the lever 20 returns to inoperative position at the end of a sensing operation. The tool adjustment may be pneumatic or hydraulic and the sensing may be continuous instead of intermittent.
Patent GB-1322413-A (GB)
Title: Receptacle for hot material such as ash
IPC: A24F19/09
Filed: 1971-04-19
Abstract: 1322413 Smokers' ash tray J P ETOURNEAU 19 April 1971 [25 March 1970] 24885/ 71 Heading A2M [Also in Divisions G1 and F4]  An automatically opening and closing receptacle, for burning or smouldering material e.g. an industrial or domestic (cigarette) ash tray operates by a photoelectric detector sensing infra red radiation emitted from the material. The cigarette ash tray shown has one or more photodiodes 14 set at the side of tray lid 4, the detection of the presence of a burning cigarette on the lid causing motor 10 to lower the lid or flap through bevel gears 8, 9. The detector circuit includes a two transistors amplifier Fig. 2 (not shown). Return of the flap 4 to the normal position is by a reverse drive which may be spring or counterweight aided. The motor 10 may be replaced by one or more electromagnets operating the flap. The flap may be replaced by one or more sliding plates rotating about a vertical axis, or by a cone shaped device running up and down in a cylindrical opening. The ash tray includes space for batteries 15 and printed circuit board 20.
Patent GB-781131-A (GB)
Title: Improvements in or relating to vapour generators
IPC: F22B21/34
Filed: 1955-08-30
Abstract: 781,131. Water-tube steam boilers; regulating steam temperature. FOSTER WHEELER, Ltd. Aug. 30, 1955 [Aug. 30, 1954], No. 24925/55. Classes 123(2) and 123(3) A water-tube steam boiler has a setting 10 divided internally by water-tube partitions 28, 36 into a reheating furnace 16, a main steam generating furnace 17 and a superheating furnace 18, the furnaces being independently fired by burners 32, 42, 48 respectively. The front wall (not shown) and rear wall 11 of the setting are lined with steam generating tubes 20 which extend from lower headers 22 to upper headers 21, the latter being connected to a steam and water drum 23. The tubes in the lower parts of partitions 28, 36 are offset to provide openings 37, 44 through which combustion gases from furnaces 16, 17 can flow into the lower end of furnace 18. A row of reheater tubes 29 extending from an inlet header 30 line the roof 14 of furnace 16 and the setting side wall 12 so as to be subjected to radiant heating from the burner 32 and terminate in a header 31. Similarly, a row of superheater tubes 43 extend from the drum 23 across the roof of the furnace 18 and then downwardly to form a partition between the furnace and a gas passage 19 to a lower header 51, return tubes 45 from the header alternating with the tubes 43 in the partition and terminating in an upper header 49. The tubes 43, 45 are offset near the bottom of furnace 18 to provide an opening 48A through which the furnace gases, together with those from furnaces 16, 17, flow into the passage 19. The combined gases flow upwardly through the passage in contact with a superheater 62, a convection steam generating section 61 and an economizer 52, 53 to an outlet 66. Tubes 44<1> lead steam from the header 49 to the superheater 62. The disposition of the reheater and part of the superheater so as to be subjected to radiant heat allows the temperatures of reheat and superheat to be maintained at the required value throughout the boiler load range by operating the burners 32, 42, 48 so that the ratio of fuel fed to each of the furnaces 16, 18 to the total fuel required by the unit remains the same irrespective of the load. In modifications, other arrangements of the three furnaces and the common gas outlet passage within the setting are described.
Patent GB-960622-A (GB)
Title: Novel amino esters and their use in epoxide resin compositions
Inventor: HUMPHREYS KEITH WOOD
IPC: C08G59/52
Filed: 1961-07-10
Abstract: The invention comprises compounds of the formula <FORM:0960622/C1/1> in which R1 is an alkyl group of 1 to 4 carbon atoms, R2, R3 and R4 are hydrogen atoms or alkyl groups, R5 is a hydrocarbon, oxy(polyalkylene) or poly(oxyalkylene) residue of valency n where n is an integer from 1 to 3.  The compounds are prepared by reacting a tertiary-primary amine of formula <FORM:0960622/C1/2> with an unsaturated acid of formula <FORM:0960622/C1/3> The compounds are used as hardeners in epoxide resin compositions.ALSO:The invention provides a hardenable composition which comprises an epoxide resin and a compound of formula:- <FORM:0960622/C3/1> in which R1 is an alkyl group of 1 to 4 carbon atoms, R2, R3 and R4 are hydrogen atoms or alkyl groups, R5 is a hydrocarbon, oxy(polyalkylene) or poly(oxyalkylene) residue of valency n where n is an integer from 1 to 3.  The composition may contain an anhydride of a polycarboxylic acid as hardener and a minor amount of the above compound as accelerator, e.g. 0.05 to 4% by wt. of the composition.  Suitable epoxide resins are polyglycidyl esters and polyglycidyl ethers.  In examples compositions containing a resin obtained from epichlorhydrin and 4,41-dihydroxydipheny dimethyl-methane are described.
Patent GB-680960-A (GB)
Title: An improved suction nozzle for pneumatic conveyors
IPC: B65G53/42
Filed: 1950-10-13
Abstract: 680,960. Pneumatic conveyers. MIAG VERTRIEBSGES. Oct. 13, 1950. [Oct. 15, 1949] No. 25000/50. Class 78 (i). A suction nozzle 2 adapted for insertion into a railway truck, ship's hold or other container is of generally oblong shape and its length is equal to the width of the container. The delivery pipe (not shown) may be arranged asymmetrically to the nozzle, and in this case the interior of the nozzle is preferably divided by walls 6 into sections 7, 8 having equal crosssectional areas. Supports 10 keep the nozzle at the correct distance from the floor and a drag flap 9 prevents entry of air without impeding the movement of the nozzle. Flat members 12 prevent the flow of material over the nozzle when the latter is being moved. Inlet openings 11 for secondary air are provided.
Patent GB-881693-A (GB)
Title: Improvements in or relating to brake pedal arrangements
Inventor: SCHAFER WILLI
IPC: B60T7/04
Filed: 1960-07-19
Abstract: 881,693. Vehicle brakes. SCHLEPPERWERK NORDHAUSEN VEB. July 19, 1960, No. 25119/60. Class 103 (1). Two brake pedals are arranged side by side for braking a wheel at the corresponding side of e.g. a tractor, one pedal having a plate-like head 3 hinged to the pedal shank 1 in such manner that the head 3 is turnable through approximately 180 degrees to overlie the other pedal head 9, thus enabling simultaneous operation of both brake pedals. An abutment 4 is fixed to the pedal head 3 and an optional abutment 5 to the pedal shank 1, while a spring 7 capable of acting in an overcentre capacity is anchored to the head 3 at 6 and to the shank 1 at 8.
Patent GB-605940-A (GB)
Title: Improvements relating to cultivating and tilling machines
IPC: A01B33/06
Filed: 1945-04-15
Abstract: 605,940. Agricultural implements. WHARTON & OLDING, Ltd., and WHARTON, W. April 15, 1945, No. 25208/44. [Classes 6(i) and 6(ii)] A portable cultivating and tilling machine comprises an electric motor 1 driving in opposite directions sets of tines or cultivators 10. In working position the motor assembly is attached to the bars 22 at the pivots 21 and to the bar 24 by means of a bolt 25 passing through the end-hole 24<SP>x</SP>. For transport the bolt is passed through a hole 24<SP>x</SP> higher up the bar 24. The motor spindle is geared through a clutch to the tine bar 9 and this is in turn geared to the tine bar 8. The machine may be used without wheels, a handle bar being fitted by bars direct to the motor at 15 and 28. In a modification the landwheels may be driven from one of the tine spindles through a telescopic shaft. In a further wheeled modification the handle structure is pivotally mounted on a pair of plates fixed to the motor gear casing; means on the structure, engaging slots in the plates, are controlled from the handlebar to vary the working position of the machine. Springs are fixed to the plates, the other ends being mounted on a bar on which the wheel frame is pivoted for balancing the machine relative to the wheels and partly removing the load from the handle. The machine may be driven by an internal combustion engine the crankshaft of which drives the tine shafts through a horizontally disposed worm-gear.
Patent GB-1336768-A (GB)
Title: Lenses
IPC: G02B15/14
Filed: 1971-04-19
Abstract: 1336768 Variable-focus objectives L BERTELE AND J BERTELE 19 April 1971 [25 March 1970] 25305/71 Heading G2S A variable-focus objective has six lenses, the first L 1 , being a dispersing meniscus convex towards the second L 2 ; the second being movable to vary the focal length, and being biconvex, the first and second together always having collective power; the third L 3  being collective and the face r 5  being more strongly curved than r 6 ; the fourth L 4  being collective, radius r 7  being convex towards L 3  and of smaller curvature than each glass-air interface of the preceding three lenses; the fifth L 5  being dispersive and faced the less strongly curved surface r 11  of biconvex sixth lens L 6  the second lens being displaceable by 0À55 - 1 times the focal length of this lens. Optical data are given for three examples. The lenses may include a cemented surface.
Patent GB-1004684-A (GB)
Title: Stabilized nylon compositions
IPC: C08K5/098
Filed: 1964-06-19
Abstract: Nylon polymers having a 20 to 140 gm. equivalent excess of amine over carboxyl groups per 1,000,000 gm. of polymer are stabilized against oxidation and hydrolysis by the incorporation of 0.02 to 0.08% (by weight) of cupric chloride, 0.02 to 0.08% of cupric acetate and 0.05 to 0.5% of 2-mercaptobenzothiazole or its copper salt before, during or after polymerization. Specified nylons are those obtained by condensing hexamethylene diamine with adipic or sebacic acid and by polymerizing epsilon caprolactam in the presence of a diamine.  Dyes, pigments and other stabilizers may also be present.  In an example, the effect of the stabilizer combination of the invention on Nylon 66 is compared with that of 4,41-butylidene-bis-(6-t-butyl-m-cresol).
Patent GB-303050-A (GB)
Title: Improvements in collapsible boxes
IPC: B65D6/16
Filed: 1927-09-27
Abstract: 303,050. Walter, A. K. Sept. 27, 1927. Folding boxes; Lids.-In a collapsable box or container, the lid 13 is provided with a plurality of side projections 5, Fig. 3, which are adapted to engage bayonet sockets 3 in the end members 6 and to be retained therein by a spring or springs 7, which are compressed by further studs 5 on said lid. As shown in Fig. 1, the bottom 4 of the box may be attached to the ends in a like manner, while the sides 8 are provided with pins 10 adapted to engage slots 3 in the end members and pins to fit in holes in the bottom member. In a modification, Figs. 5 and 6, the ends and sides are pivotally secured to the bottom of the box and are normally held in position by pins 16, while the lid 13 alone is provided with the spring-retained locking means 14.
Patent GB-783821-A (GB)
Title: Improvements in coin-testing mechanism
Filed: 1955-09-06
Abstract: 783,821. Testing coins in coin-freed apparatus SKILLMAN & CO., Pty.. Ltd., T. S. Sept. 6. 1955 [Sept. 10, 1954], No. 25537/55. Class 27 Coin testing apparatus includes a pair of calipers 11 pivoted at 26 and provided with measuring points 50 normally situated above the pivots and with curved overlapping tails 51, the inside edge of the tail of each caliper being formed by the arc of a circle centred on the measuring point and having a radius slightly less than the diameter of the coin to be tested. If the coin is of correct thickness just inside the rim, it will, when resting on the tails, allow the measuring points to move through the line joining the two pivots and thus beyond the point of minimum separation so that the tails can cease to overlap and allow the coin to pass. If the thickness is too great, the measuring points will be prevented from reaching the'line joining the two pivots and the coin will be held by the calipers. One pair of calipers is carried by a bracket 30 on a fixed frame 1 and the other is carried on a hinged flap 2 by means of a pivoted bracket 28 which is adjustable to vary the pivot spacing by means of an adjusting screw 32 and locking screw 31. An inserted coin is first tested by the insertion slot for over-thickness and over-diameter and then falls between the frame 1 and flap 2 and past adjustable guides 5, 8 to the calipers. After passing the calipers, the coin rolls down a rail 12 where, if too thin, it falls through an adjustable gap between the rail and the frame or flap and, if too small in diameter, it falls out laterally through a gap 13 adjustable by a plate 14. A coin not so far rejected falls on to a weighing balance 19 and, if of acceptable weight, tilts the balance so that the coin can pass below a stop 23. A rebound test may also be provided. Clearing apparatus. The hinged flap 2 can be pivoted away from the frame 1 by means of a pushbutton and spring- loaded rod to release trapped coins and is returned to normal position by a spring fitted over a screw 18. A stop member is moved across the aperture 13 during the first part of the movement of the pushbutton so that a coin released from the calipers cannot roll down the rail 12 before the flap has moved far enough from the frame to allow the coin to fall between them .
Patent GB-792570-A (GB)
Title: Improvements in and relating to the tensioning of threads or yarns
IPC: B65H59/10
Filed: 1955-09-07
Abstract: 792,570. Thread tensioning devices. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Sept. 7, 1955 [Sept. 30, 1954], No. 25691/55. Class 120(2) The tension in a running yarn or thread is increased by guiding it between two cooperating toothed rollers, 1, 3, one of which, 1, is braked relative to the other in a slipping manner and with a constant resistance, an additional force being exercised on the roller 3 which is less braked or not braked in the direction of movement of the yarn or thread to cause the yarn or thread to be clamped between the leading flanks of the teeth of the roller 3 and the following tooth flanks of the roller 1. Thread 5 is passed over a guide 6 and between the teeth of the rollers 1, 3, the shaft 2 of the roller 1 being braked, preferably by a magnetic brake system. To give the required additional force the thread is wrapped over an angle #, greater than the angle a. over which it is in contact with both rollers, of the roller 3 before passing over a guide wheel 7. In a second embodiment, the additional force is provided by mechanism comprising a second toothed roller rigidly mounted on the shaft 2 co-operating with a toothed roller freely rotatable on the shaft 4 and connected to the roller 3 by a helical spring tensioned by the rotation of the roller on the shaft 4 driven by that on the shaft. It is stated that this embodiment can produce a tension 200 times that in the thread supplied to the device. Specification 750,350 and U.S.A. Specification 2,379,806 are referred to.
Patent GB-421396-A (GB)
Title: Improvements relating to the manipulation of spring clip fasteners of driving chains
IPC: B25B27/22
Filed: 1934-09-08
Abstract: 421,396. Prizing-tools. RENOLD & COVENTRY CHAIN CO., Ltd., Didsbury, Manchester.-(Gerald, L. ; 218, Boulevard Lafayette, Calais, France) Sept. 8, 1934, No. 25899. [Class 61 (ii)] A tool for removing or replacing the spring fork from the shouldered pins of a connecting link of a driving chain consists of a lever 10 with an aperture 12 at one end to engage the pin 14 and an adjacent shoulder 16 adapted when the lever is turned to engage one of the ends 20 of the spring fork 18 and disengage it from the pins 14, 28 ; the other end of the lever 10 has an aperture 26 and cam surface 24 adapted to engage the end of the fork and force it into position.
Patent GB-502875-A (GB)
Title: A new or improved toggle-link device for use in moulding, pressing and forming-machines
IPC: B22C11/00
Filed: 1937-09-24
Abstract: 502,875. Mechanical presses. HUMPHRIS, F. Sept. 24, 1937, No. 25901. [Class 87 (ii)] [Also in Group XXXV] A toggle-link device for moulding, pressing and forming machines, comprises two or more pairs of coating links a, b arranged on each side of a bearer beam c, the pairs of links being coupled by rods e connecting the centre joint pins d or centre bearing blocks of each pair of links. The beam is preferably of I-form and the rods pass through holes c<1> in the web. The links a are hinged to the beam by pins f and the links b are hinged by pins g to a pusher block or table h. Any number of supporting blocks may be employed and these may be guided in known manner. Where the pins f, g have complementary parts f<1>, g<1>, these may be supported by flanges on the beam and on the blocks h respectively. The coupling- rods e are actuated by a cam m bearing on a roller k mounted on the centre joint pins d. The toggle links are returned to their initial position by a lever r loaded by a spring p. The pusher block h may be provided with one or more holes for permitting one or more stepped parts on the ejecting plunger j to contact with the beam c. A pusher block h is preferably provided for each plunger j, but one such block may actuate several plungers.
Patent GB-937601-A (GB)
Title: Crutch tip
IPC: A45B9/04
Filed: 1962-07-06
Abstract: 937,601. Crutch tips. A. A. SMITH. July 6, 1962, No. 26016/62. Class 134. A crutch tip moulded in rubber or other resilient material has a base 11 and neck 12 with a passage to receive the crutch shaft 17, the part between base 11 and neck 12 having an annular groove 13 to define a horizontal axis of bending movement and vertical longitudinal ribs 20 are provided to slow or snub the bending movement. A metal disc 22 reduces wear of the crutch shaft on the passage and concentric circular grooves 21 improve the grip of the tip on the ground. Specification 874,724 is referred to.
Patent GB-279068-A (GB)
Title: Improvements in or relating to photo-electric cells and circuit arrangements therefor
IPC: H01J40/04
Filed: 1927-10-04
Abstract: 279,068. Telefunken Ges. f³r Drahtlose Telegraphie. Oct. 15, 1926, [Convention date]. Vacuum tubes.-A carrier wave is modulated in accordance with the varying intensity of light by exposing the photo-electric cathode K of a triode valve to the incident light, and applying the carrier wave to the grid G, thus producing a modulated wave in the circuit of the anode A.
Patent GB-916164-A (GB)
Title: Improvements in or relating to cattle pens and cattle pen doors
IPC: A01K1/06
Filed: 1958-08-15
Abstract: 916,164. Animal holding devices. TAYLOR, J. H. Aug. 10, 1959 [Aug. 15, 1958], No. 26240/58. Class 81 (2) A yoke for gripping an animal's neck, associated with the door of a pen, is so arranged that opening the door automatically releases the yoke. In one form described, the yoke 11 comprises a curved frame mounted on horizontal pivots 12 set on a line which is spaced from and to the rear of the door. The yoke carries a toothed rack 13 which co-operates with a pawl 14, mounted on the door 10. The pawl and rack may be interchanged if desired. Specifications 747,510 and 902,001 are referred to.
Patent GB-494618-A (GB)
Title: Loom shedding mechanism
IPC: D03C3/20
Filed: 1937-09-29
Abstract: 494,618. Loom shedding - mechanism. FISHER, G., and TANDLER, W. S. Sept ' 29, 1937, No. 26341. Convention date, Oct. 2, 1936. [Class 142 (i)] The heddles are connected directly to oscillating two armed controlling levers 13, 14 on a grooved spindle 11, the levers being first all raised by a bar 16 on oscillating levers 17. When the bar 16 descends, certain of the levers 13 descend with it, whilst others are restrained by the hooked parts of selector members 41. These are oscillated about a spindle 42 by hammers 54 on the armatures of electromagnets 50a, 50b, which are selectively excited under the control of a pattern scanning device, some members 41 being moved into and others out of restraining position. The unrestrained levers rock clockwise and by means of links 34 move a knife bar 33 in a slot in a lever 30. The knife bar engages over the parts 14 of the restrained levers 13 and under the others. The lever 30 is afterwards rocked downwards by means described whereupon the knife bar moves the restrained levers 13 counterclockwise, whilst the other levers 13 move clockwise. The corresponding warp threads are thus moved from central to an upper and lower position respectively to form a shed as shown in Fig. 4. A fresh selection of the control members 41 is then made and a spring plate is moved to the right so that its spring teeth 62a pass beneath the selectors 41 that have been rocked clockwise. If the hooked part 44 of a lever 13 returning to normal position should, in passing, rock one of the selectors 42, the corresponding spring tooth 62a afterwards returns this to its original position. Each electromagnet is electrically connected to an amplifying device 52, which is connected'to a source of electric energy through lines 53 and through a line 57 to a copper pattern sheet, having a design thereon in insulating ink or varnish. The sheet is carried by a step-wise rotated support and is scanned by a roller 58 on a spindle supported in a carriage 47, which carries the electromagnets 50a, 50b and is moved across the loom on a rail 47. When the roller engages a conductive part, the electromagnet 50a is energized and its armature is so swung that one or more selectors 41 are moved to position their hooks in front of projections on the control members. When the circuit is broken, the electromagnet 50b is energized and one or more selectors are moved into inoperative positions. A modification is described wherein the heald connections pass through holes in the bar which raises the control levers and also over guide rods. In this case, only the warp threads which are to be raised are moved, the others remaining in their level position.