baber/WOPTO huggingface dataset:
Patent GB-377485-A (GB)
Title: Device for opening the feed grippers of sheet printing machines
IPC: B41F21/05
Filed: 1931-09-10
Abstract: 377,485. Feeding sheets. MASCHINENFABRIK AUGSBURG-NœRNBERG, AKT.-GES., 7, Stadtbachstrasse, Augsburg, Germany. Sept. 10, 1931, No. 25462. Convention date, Oct. 15, 1930. [Class 100 (i).] Sheet carriers ; gripper mechanism.-In a device for feeding sheets to the grippers d of a printing- machine of the kind in which the sheets are fed from a feed board a by means of grippers c on an oscillating lever o, the grippers c are opened to deliver the sheets to the grippers d by means of a pivoted cam h which is moved anticlockwise about its pivot g when acting on a roller f to operate the gripper shaft n. The cam h is operated by a rod i and a lever k on the shaft l of the oscillating lever o.
Patent GB-942116-A (GB)
Title: Manufacture of slurried blasting explosives
IPC: C06B47/14
Filed: 1962-07-03
Abstract: An explosive blasting agent comprises an aqueous slurry of an oxidizing salt, a granular water insensitive organic explosive, and mannogalactan as a gelling agent, and also contains a fuzed glassy metallic tetraborate in a concentration, calculated as B2O3, of 2-10% by weight of the mannogalactan.  The borate gives a more cohesive final gel, but delays gelling so that the slurry may be more easily pumped, handled, and packaged.  The explosive may contain by weight 8-26% water, 15-40% organic explosive, 0.1-2% mannogalactan (e.g. as guar gum or carob seed gum), and 0.002-0.2%, calculated as B2O3, of the tetraborate, the remainder being oxidizing salt. The preferred oxidizing salt is ammonium nitrate, up to 50% of which may be replaced by sodium nitrate; other oxidizing salts referred to are chlorates and perchlorates of sodium and ammonium, and the corresponding potassium salts.  Suitable organic explosives are TNT, Composition B (RDX+TNT), smokeless powder (e.g. containing nitrocellulose, nitroglycerine, dinitrotoluene and dibutyl phthalate), PETN, tetryl, RDX and pentolite. Tetraborates of Na, Li, K, Mg, Ca, or Ba may be used, an impure fertilizer grade tetraborate being especially suitable.  Other optional additional ingredients are metallic powders, ammonium picrate, and cellulose pulps.  Canadian Specification 617,006 is referred to.
Patent GB-909029-A (GB)
Title: A slide-changing device for projectors
IPC: G03B23/04
Filed: 1961-07-14
Abstract: 909,029. Optical projectors; slide changers. BRAUN, E., and BRAUN, A. July 14, 1961 [March 7, 1961], No. 25550/61. Class 97 (1). A slide changing arrangement for projectors of the type in which, in use, a number of platelike slides in a magazine to the side of and below the optic axis of the projector are sequentially placed in position for projection by means of a pair of gripping tongs driven by a motor acting through a crank drive, and in which the magazine is slidable in a direction parallel to the optic axis, the two claws of the tongs are resiliently connected together and one claw is arranged to engage the slide to be projected through an opening in the bottom of the magazine and to push it against the other claw which is rectangular so as to butt against the top and one side of the slide, the slide being held in this manner while it is moved into the image plane of the projector until it is replaced in the magazine, is characterized by both claws of the tongs being pivoted. As shown, the slidechanging arrangement includes a magazine 4 slidable on guides 3 parallel to the optic axis of a projector 1 and a pair of tongs comprising claws 6 and 7 having a common pivot 8 and resiliently urged in the claw-closing direction by a torsion spring 9. The claw 7 is connected to a driving crank 12 by way of a link 14, the connection between link 14 and crank 12 including a slot 14a in the link engaged by a spring-urged pin 16 on the crank so as to allow for differences in the dimensions of the slides. Projections 18 and 19 are provided for limiting pivotal movement of the claw 6. A complete slide changing cycle is effected upon rotation of the crank 12 as follows. At first only the claw 7 is rotated to bring its grooved end 7a into engagement with the bottom edge of a slide 5 (see chain-dotted position) and to clamp the slide between the grooved end 7a and edges 6a, 6b of the claw 6, edge 6b of which is also grooved. The guide channel is slotted at 3a and each compartment of the magazine 4 is slotted as at 4a and 4b to allow for this movement of the claw 7. After the slide has been firmly gripped, the claws 6 and 7 pivot together to transfer it to the picture gate 2 for projection. After projection and upon further rotation of the crank 12, the claws 6 and 7 return the slide to its original position in the magazine and themselves return to their original positions (shown in full lines). Movement of the magazine on its guides 3 would then permit a further slide to be projected. A pin 10 on claw 6 and co-operating projection 11 on claw 7 are provided to define the minimum closing position of the said claws. German Specification 1,063,828 is referred to.
Patent GB-1428803-A (GB)
Title: 4-acetamidophenyl esters of aryl-alkane carboxylic acids and  a  process for their preparation
IPC: C07C233/45
Filed: 1973-05-29
Abstract: 1428803 4-Acetamidophenol esters of aralkane carboxylic acids ANTONIO GALLARDO SA 22 July 1974 [29 May 1973] 25551/73 Heading C2C The invention comprises compounds of Formula (I) wherein R 1  is H, isobutyl, allyloxy or phenyl; R 2  is H, chlorine, benzoyl or α-hydroxybenzyl; and R 3  is H or methyl. They may be prepared by adding an acid halide of formula where X is a halogen atom, to a solution or suspension of 4-acetamidophenol, or a salt thereof, in an inert solvent. The compounds of Formula (I) are used as active ingredient in pharmaceutical compositions.
Patent GB-696934-A (GB)
Title: Improvements in devices to determine the energy emitted by an x-ray tube per unit time in the form of x-rays
IPC: H01J47/02
Filed: 1951-11-01
Abstract: 696,934. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 1, 1951 [Nov. 2, 1950], No. 25616/51. Class 98 (i). [Also in Groups XL (a) and XL (b)] Apparatus for measuring the intensity of radiation emitted by an X-ray tube, the X-rays penetrating a substance in the device operating as a source of secondary rays located between the source of primary rays and a large ionization chamber arranged on the safety shield of the X-ray tube, is characterized in that at the side of the gaseous contents of the large ionization chamber remote from the source of primary X-rays provision is made of a substance partially absorbing the X-rays to compensate for the effect of any change in the wavelength of the X-rays on the calibration constant of the measuring apparatus, as far as this is due to secondary radiation, because of the effect of the change in the wavelength on the calibration constant of the measuring apparatus, as far as this is due to the said absorption. As shown, an X-ray tube having an anode 3 enclosed by a glass wall 1 is mounted in a shielding container 2, the intermediate space 8 being filled with oil. X-rays from the target 6 pass through the oil, through the wall of a re-entrant part 9 mounted in an aperture in the shielding, and through a large ionization chamber 13 mounted in a bushing 10 on the shielding which carries a beam defining diaphragm (not shown). Bushing 10 and the X-ray tube may be rotatable together with respect to container 2. Filters 11 may be slid between the chamber 13 and the target 6. The radiation passing through the chamber 13 includes a proportion of secondary radiation emanating from the oil and the parts of the casing in the path of the direct rays. As the wavelength decreases, the scattered radiation becomes more intense. As the intensity of the scattered radiation falls off rapidly with distance from the tube, the intensity of radiation at a point some distance from the tube is less than a measurement of the current passing through the chamber 13 would indicate. This effect is compensated by absorbing part of the radiation after it has passed through the chamber 13, either by providing a plate of X-ray absorbent material, or by thickening the wall 14 of the chamber 13, the absorption increasing with decrease in wavelength. By proper choice of the thickness of the absorbing material, the indications on a meter measuring the ionization current may be made to indicate the intensity of the X-rays at a distance from the tube, the indication being independent of wavelength.
Patent GB-975492-A (GB)
Title: Antibiotics
IPC: C12P19/56
Filed: 1963-06-27
Abstract: An antibiotic substance designated danomycin is produced by cultivating a danomycin-producing strain of Streptomyces albaduncus (A.T.C.C. 14698) in a liquid medium containing a glyceride oil or carbohydrate, and a nitrogenous nutrient, under submerged aerobic conditions until substantial activity versus Gram-positive bacteria is imported to the solution.  The danomycin may be removed from the solution by methods such as adsorption on active carbon, precipitation by addition of acetone or extraction by organic solvents. Danomycin is soluble in water and insoluble in acetone, is reddish orange in colour, exhibits negative ninhydrin, Tollens and Fehling reactions, melts with decomposition at 135-138 DEG C., exhibits in water an ultraviolet absorption spectrum having maxima at 270mm  (E1%1 cm.=48), 325 mm  (E1%1 cm=12.6) and 430 mm  (E11 cm.=15.6), is found by analysis to contain C, 48.82%; H 7.05%; N, 7.81%; Fe, 3.13% and O (by difference) 33.19%; and when pelleted in potassium bromide exhibits characteristic absorption bands in the infra-red region of the spectrum at 3200-3280, 2920, 1720-1725, 1630-1640, 1570-1580, 1495-1500, 1455-1470, 1220-1230, 1160-1165, 1010-1040, 865-880, 810, 755 and 680-690 cm-1.  Pharmaceutical compositions comprise danomycin and a suitable pharmaceutical carrier.  Pharmaceutical compositions comprise danomycin and a suitable pharmaceutical carrier.
Patent GB-888338-A (GB)
Title: Improvements in universal rolling mill equipment
IPC: B21B31/04
Filed: 1959-07-27
Abstract: 888,338. Rolling profile sections. MOELLER & NEUMANN G.m.b.H. July 27. 1959 [Aug. 8, 1958], No. 25678/59. Class 83 (4). In a universal stand with horizontal and vertical rolls mounted in one plane for rolling I-profiles and the like, chocks 11, 12, Fig .3, for the vertical rolls 10, 11 are adjustably guided in a closed supporting frame 16 mounted between housing members 1, 2, and within the confines of the width of the housing columns the housing members 1, 2 being connected by prestressed tie-rods 3 and the side-members of the supporting frame being subjected to tensile stress. The construction results in a smaller housing with a narrower window width than hitherto. After assembly of the stand, to apply the prestress the tie-rods 3 are extended by hydraulic pressure acting on a transmitting stem 28 which bears on a closure 30 of the tie-rod tube. The horizontal rolls 4, 5 are adjusted by spindles 8, 9 respectively through worm-gearing operated by motors situated at the top of the stand. The same motors rotate telescopic inclined shafts 34, Fig. 2 (not shown), to adjust the vertical rolls 10, 11 through worm gearing and spindles 14, 15. In a modification, Fig. 4 (not shown), a separate spacer may be inserted within the supporting frame at each tie position so that the supporting frame is free to move in a horizontal plane to equalize rolling pressure made unequal by varying flange thickness during rolling. The supporting frame is returned by prestressed springs to a neutral position. Rigid fixing may however be retained by means of screws which bridge the springs. The stand may be converted to a two-high stand by the removal of the supporting frame and the substitution of smaller spacing members. Specification 9187/10 and German Specifications 629,097 and 1,031,248 are referred to.
Patent GB-1338447-A (GB)
Title: Dental dowel pin for use in stump models
IPC: A61C9/00
Filed: 1971-04-19
Abstract: 1338447 Dental dowel pins R SAUTER 19 April 1971 [3 April 1970] 25732/71 Heading A5R A dowel pin for use in making a model of a tooth stump comprises a frusto-conical base part 1 with a longitudinal bevel 2 on one side; a cylindrical, coaxial pin head 3 at the wider end of the base part 1 and of a smellar diameter than that end; and a cylindrical, coaxial holding pin 5 at the free end of the pin head 3. The holding pin 5 has a smaller diameter than the pin head 3 and may have a coarse thread 6 or a knurled surface, and longitudinal bevels (8), Fig. 3 (not shown), or longitudinal notches (9), Fig. 4 (not shown). The sections 3, 5 are connected by a frangible neck 7. The pin head 3 may have a knurled surface 4.
Patent GB-172416-A (GB)
Title: Improvements in mounting blocks for printing surfaces
IPC: B41F27/04
Filed: 1920-09-07
Abstract: 172,416. Mangiarotti, M. Sept. 7, 1920. Printing - surfaces. - A mounting-board for printing-surfaces, of the kind having a reinforcing metal frame cast into crossing grooves or slots in the face of the board, has the grooves so formed or positioned that the metal frame cast therein is keyed to the board. As shown in Fig. 3, a metal layer 4 and integral dovetail projections 3 are formed by casting metal into under-cut grooves of different depths in a board 1, which before the casting operation is thicker than shown, the wood below the deepest projections 3 being planed off to the level shown after the casting operation. The upper layer 4 may be planed down slightly to form a level surface to receive a printing-plate, or to the level of the top of the board 1. In a modification, inclined ribs 14, Fig. 10, are formed in the upper layer of the board 1 and inclined ribs 15 in the lower face of the board, similar ribs being formed at right-angles to those shown, so that the whole forms a rigid frame keyed to the block. In further modifications, ribs inclined in opposite directions are employed, and these. may be separated by short vertical ribs.
Patent GB-817910-A (GB)
Title: Improvements in web dividing tapes or spinning tapes for textile machines
IPC: D01G15/62
Filed: 1956-08-25
Abstract: 817,910. Laminates. SIEGLING, H. Aug. 25, 1956, No. 26054/56. Drawings to Specification. Class 140. [Also in Group IX] A multi-layer web-dividing tape or spinning tape comprises a layer of a stretched polyamide or stretched polyurethane sandwiched between and welded to outer layers of a mixed polyamide or mixed polyurethane to which plasticisers have been added. In an example, the middle layer consists of a stretched polycaprolactam and the outer layers consist of mixed polyamides consisting of 2 parts of hexamethylene diammonium adipate and 1 part of e-caprolactam to which is added as plasticiser benzene sulphonic acid methylamide followed by the addition of a mixture of said methylamide and paraformaldehyde. The three layers are united by heating.
Patent GB-954966-A (GB)
Title: Single-tube convector
IPC: F24D19/04
Filed: 1962-07-06
Abstract: 954,966. Air heating apparatus. F. KAUER. July 6, 1962 [July 6, 1961; Feb. 16, 1962], No. 26090/62. Heading F4S. In a single tube convector heater having a heating system comprising a continuous tube b through which a heating medium flows and having transverse fins a on the tube perpendicular to the axis thereof, and a sheet metal cover e which engages over the heating system leaving a cold air inlet at the bottom and a warm air outlet at the top, the heater tube b, fins 2, and a wall plate c together form a one-piece casting wherein the heater tube extends along the lower edge of the casting on the wall side, the wall plate c being approximately tangential to the tube, and the top of the transverse ribs a being at the same level as the border of the wall plate. The fins a may slope downwardly at the top, Fig. 5, or be substantially rectangular. The sheet metal cover is retained in position by inturned lips which engage a groove in the top of the wall plate and slots in (Fig. 5), or lugs m below (Fig. 10), the lower front corners of the fins. The warm air outlet in the upper surface of the cover is formed by a series of apertures f, while additional cold air inlets may be provided in the front of the cover. A flap valve h, Fig. 10, may be provided below the warm air outlet, controlled by an operating rod i, the cover e being extended above the fins to form a cavity to house the valve. To maintain the air path at a constant cross-sectional area the cover may be bulged level with the heater tube, Fig. 10, the fins being contoured correspondingly. Horizontally elongated slots d in the wall plate allow attachment of the heater to the wall, a sheet of insulating material n, e.g. asbestos, being placed between the wall plate and the wall. The casting is preferably of light metal.
Patent GB-338243-A (GB)
Title: Apparatus for use in burning pulverised fuel
IPC: F23K3/00
Filed: 1929-08-27
Abstract: 338,243. Gasified Pulverised Fuel (G. P. F.), Ltd., Tollemache, H. D., and Margetson, O. Aug. 27, 1929. Mechanical stoking. - Powdered fuel without carrying air is distributed between a number cf burners by a common conveyer 1 operating in a casing 3 divided by a partition 4 into two superposed compartments, the fuel passing from the upper compartment to the lower through openings 6, and from the lower compartment to the burners through openings 7. The openings are provided with shut off devices, and in advance of each of the lower openings is a flap regulator 8. The discharge edges of the lower openings may be arranged at an angle to the direction of movement of the fuel. From the openings 7, the fuel passes to a conduit 15 enlarged at its upper end to accommodate a motor driven fan, which draws in primary air through an annular passage 17. The fuel is fed to one end of the conveyer 1, which may be of the type described in Specification 169,262, [Class 78 (i), Conveyers &c.], either from a storage bin or from a pulverizer through a cyclone separator.
Patent GB-159252-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60C7/14
Filed: 1919-10-25
Abstract: 159,252. Schoeke, M. Oct. 25, 1919. Spring wheels with continuous o u t e r rigid ring and metal springs other than helical and volute springs.-In spring wheels of the kind in which flat spiral springs attached to the felloe carry an outer sheet-metal tyre, an undercut metal ring a is secured to the felloe b and engages in an undercut groove c in a sheet-metal trough d formed in two or more segments, and the springs f, carrying the cross-pins to which the tyre i is attached, are secured to the trough d. The sheet-metal tyre may be somewhat circular in cross-section, as shown in Fig. 3. A rubber tread l may be attached to the tyre i by side flanges m, or rubber blocks may be let into the tyre, which may be in segments hinged together. Fig. 9 shows a metal ring a of T-section secured to the felloe b, and a sheet-metal trough d with a T-section groove.
Patent GB-444029-A (GB)
Title: Improvements relating to filing trays
IPC: B42F17/02
Filed: 1934-09-12
Abstract: 444,029. Card-index trays. LIBRARY BUREAU, Ltd., 6, Underwood Street, Hoxton, and WILLIAMSON, A. C., 75, Trouville Road, Clapham Park, both in London. Sept. 12, 1934, No. 26219. [Class 146 (i)] In a filing-tray for vertical filing systems, and which is provided with a follower plate at one or both ends of the tray movable into an inclined position in which the upper part is outside the open end of the tray, the follower plate is so connected to the inside of a structure slidably carried by the tray that it is capable of both pivotal and rectilinear movement on the structure, and the latter is capable of being projected beyond the open end of the tray, means being provided to restrain the lower end of the follower plate, so that, when the structure is projected, the plate takes up a position in which its lower end lies within the tray and its upper end is supported by the structure outside the end of the tray. The open-ended tray comprises sides 1, folded over at 1<1>, and a bottom 2 with strengthening grooves 2<111>, and grooves 2<1> in which flanged rails 3 are secured by rivets. Shoe-pieces 4 of L- shaped upright supports 6 for the follower plates slide in the rails 3, and one of each pair is provided with a projection 14, adapted to engage with any of a series of depressions in the rail 3 to position the follower plates. The uprights 6 are joined by plates 10 with bent-out handles 10<1>, and by cross-bars 7, which engage with elongated stirrups 8 on the follower plates 9. The plates 9 are held off the bottom of the drawer by projections 9<1> and are engaged by stops 11 in the projected position of the supports. Stops 12 engage shoulders on one of the shoes 40 prevent the complete withdrawal of the follower. One of each pair of shoes 4 is shorter than the other, and the short and long shoes of the two followers are arranged in the same rail. A longitudinal card-engaging rod may be mounted on uprights between the grooves 2<1>, and the bottom of the tray may be provided with longitudinal notched member to engage the lower edges of frames for visible indexes.
Patent GB-1287053-A (GB)
Title: Call-number monitors for telephones
Inventor: GUETTA GUY CLAUDE
IPC: H04M15/04
Filed: 1970-06-01
Abstract: 1287053 Indicating dialled digits G C GUETTA 1 June 1970 [2 June 1969] 26228/70 Heading H4K [Also in Divisions G4-G6] Amplified impulse trains are steered by a first counter to successive ones of a rank of second counters which register the digital values represented by successive impulse trains and control a print-out mechanism or control a visual display to present the digits for inspection. The arrangement may be used to display the digits dialled at a telephone substation so that correct dialling of a large number of consecutive digits can be confirmed. The display' comprised of cold cathode tubes, may be in a device separate from the substation or may be in a pedestal portion of the substation instrument. Alternatively the device may be used in a private exchange to record by print-out the particulars of calls outgoing over a public exchange line, the calling extension and the time of call being included in the printed record. The impulses are detected by means of an inductive loop and ferromagnetic core embracing the telephone line wire carrying loop disconnect impulses. The transients produced by the trailing and leading edges of each impulse are amplified, rectified, and employed to trigger a monostable circuit with a period slightly in excess of an impulse so as to reconstitute the impulses. The reconstituted pulse train is applied to a second monostable circuit which holds up to the train but relapses to indicate interdigital pauses. The second monostable circuit steps the first counter to steer the reconstituted pulse trains to successive second counters each of which control a visual display tube or a type wheel on a print-out device. The counters may be cleared manually or in response to release of the substation.
Patent GB-859844-A (GB)
Title: Improvements in or relating to chains
IPC: F16G13/14
Filed: 1958-08-15
Abstract: 859,844. Stud link chains. NORTH BRITISH ELECTRIC WELDING CO. Ltd., and WRIGHT, K. L. Aug. 17, 1959 [Aug. 15, 1958], No. 26279/58. Class 24. The cross-section of a stud chain link 1 at 4-4 is formed from a pair of semicircles of radius A, the centres of which are separated by a distance B. The nominal radius of cross-section of the link is equal to A, and B is equal to the height of projections 3 which are carried by the stud 2 and penetrate the link. The projections may be of diametrical or chordal form. They may be in the form of spigots arranged singly, in clusters, or in line.