baber/WOPTO huggingface dataset:
Patent GB-158123-A (GB)
Title: Improvements in turret heads for machine tools
IPC: B23Q16/06
Filed: 1919-11-11
Abstract: 158,123. Webster & Bennett, Ltd., and Bennett, A. E. Nov. 11, 1919. Turrets. -In a turrethead of the type comprising a central clamping-bolt which is adapted also by angular movement to actuate the locking element of the indexing - mechanism, the turret C is carried on a hollow arbor secured to a supporting-member B having a recess into which fits the indexing-ring D. A central spindle F having an enlarged threaded portion F<2> engaging the turret arbor carries an eccentric pin F<3> ana may be rotated to move a link F<4> and thus disengage the locking- bolt E of the indexing-mechanism. The rotating gear is carried by a member G having a spigot G<2> fitting the turret arbor. A nut F<7> actuated by a lever clamps the head and rotating gear; when this nut is slackened, the spindle F may be rotated to disengage the locking-bolt by means of an arm F<10>. The rotation of the turret head is effected by means of an arm A<9> on a spindle A<8> carrying a pinion A<7> engaging an internal spur-gear A<6>. The gearing is so arranged that one revolution of this arm, determined by a spring-pressed detent A<11>, produces the required angular movement of the turret.
Patent GB-392165-A (GB)
Title: Improvements in and connected with adjustable seats
IPC: A47C1/032
Filed: 1931-11-10
Abstract: 392,165. Seats ; spring upholstery. LOCKLEY, F. W., The Chestnuts, Oak Hill, Woodford Green, Essex. Nov. 10, 1931, No. 27894. [Classes 52 (ii) and 52 (iv).] The seat proper and the back of a seat, chair, &c. are movable about respective pivots and the rear part of the pivotal seat is connected by a resilient link to the lower part of the back so that, under the weight of the user, the lower part of the pivotal back is advanced to yield greater comfort. The seat proper a and back b may be interconnected by an adjustable flexible element d and their pivots p, p<1> may be adjustable in slots m, n respectively, as shown in Fig. 4. The slots m, n are formed at the top of pillars c<1>, c<2> forming part of the main rigid frame c, and the pivots are dropped in through slots r and secured in the required position by nuts o. Each pivot is secured in the framework of the seat or back by a bushing and engaging collar (not shown). In another modification, the pivots are interconnected by curved pivotally connected bars and their simultaneous adjustment in the slots obtained by operating a hand-screw. In the easy chair construction illustrated in Fig. 9, the pivots p of the seat a move along the slotted parts m attached to the base c and are directly connected by bars c<12>, c<14> to the back pivots p<1> and by means of a lever catch u engaging rack teeth u<1>, the seat and back may be secured in any adjusted position. The arms w connected by cross members v move with the adjusted seat by rollers w<2> running on guide rails and, to permit the arms to partake of the tilting movement of the seat, the rear ends are supported by springs x and the front ends suitably hinged to the runners of the guideways. To afford additional comfort, the usual upholstery or cushion may be supported upon a structure comprising springs f, f<1>, Fig. 2, which may be connected by means of fabric, leather, &c. pockets g, g<1> to the side bars e, e<1>, e<2>, e<3> of the seat and back.
Patent GB-849435-A (GB)
Title: Improvements in or relating to gas meters and gas governors and the like
Inventor: ALEXANDER ARTHUR
IPC: F16J3/02
Filed: 1957-09-04
Abstract: 849,435. Diaphragm pistons. PARKINSON COWAN Ltd. Aug. 19, 1958 [Sept. 4, 1957; Jan. 13, 1958], Nos. 27945/57 and 1217/58. Class 122 (1). [Also in Group XXIX] A diaphragm for a gas meter or gas volume governor or pressure regulator is moulded in dish form from material such as synthetic rubber and has locating means comprising a depending apron 14 and a continuous projection 16 on one or both sides of the flange 12. The apron 14 fits over the periphery of the flange of one member of. a diaphragm unit 20 and the projection 16 is compressed between the flanges of the unit, if necessary into flange recesses of less cross-sectional area than the projection.
Patent GB-982196-A (GB)
Title: Process for the optical brightening of cellulose material and material brightened thereby
IPC: D06L4/614
Filed: 1962-07-20
Abstract: Cellulosic fibres, e.g. viscose rayon fibres and cotton and linen fabrics, are brightened by impregnating them with an aqueous solution of a salt of at least one stilbene compound having the formula <FORM:0982196/D1-D2/1> in which R1 and R2 are primary amine groups or secondary or tertiary amine groups containing aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic nitrogen substituents which, together with the nitrogen atom, and, if desired, an oxygen atom or a further nitrogen atom, can also form a heterocyclic ring, and R3 and R4 are halogen atoms, hydrokyl groups, alkoxy groups which may be substituted or primary, secondary or tertiary amine groups as defined for R1 and R2, and with an aqueous solution of a water-soluble polyvinyl or polyalkylene oxide compound containing one or more hydroxyl groups but no sulphonic acid groups and which may be tautomeric, and then drying them.  When R1, R2, R3 and R4 are secondary or tertiary amino groups these may be methylamino, ethylamino, propylamino, b -hydroxyethylamino, b -hydroxypropylamino, b -cyanoethylamino, dimethylamino, diethylamino, bis-b -hydroxyethylamino, N-methyl-N-ethylamino, N-methyl-N-b -hydroxyethylamino, N-ethyl-N-b -hydroxyethylamino, N-methyl-N-b -hydroxypropylamino, N-ethyl-N-b -hydroxypropylamino, benzylamino, N-b -hydroxyethylbenzylamino, cyclohexylamino, N-ethylcyclohexylamino, N-b -cyanoethylcyclohexylamino, phenylamino, o, m or p-methylphenylamino, 3, 5-, 2, 5- or 3, 4-dimethylphenylamino, m or p methoxy, ethoxy, chloro, bromo, sulpho, sulphamyl or carboxy phenylamino, 2, 5 dimethyl-4-sulphophenylamino, 4-chloro-3-carboxy-phenylamino, piperidino, morpholino, carboxy-methylamino, N-methylcarboxymethylamino, 2-methoxy-ethylamino, N-methyl-2-methoxyethylamino, 2-ethoxyethylamino, or 3-methoxypropylamino groups.  Suitable water-soluble hydroxyl group containing compounds are polyvinyl alcohol, partially saponified polyvinyl esters, polyvinyl pyrrolidone, polyalkylene glycols, polyaddition products of propylene oxide and ethylene oxide and addition products of higher alkanols, aliphatic mono- or polyamines or alkyl phenols having 8 or more aliphatic carbon atoms and at least 15 mols of an alkylene oxide. The stilbene compound and water-soluble hydroxyl group containing compounds may be applied to the fibres simultaneously from the same aqueous solution or in steps, and the fibres then dried at a raised temperature, e.g. 50 DEG -100 DEG C., and if desired steamed and washed. The impregnation liquors may also contain synthetic resin precondensates, e.g. hexamethylolmelamine, dimethylolurea or dimethylolethyleneurea, and the fibres after drying at temperatures up to 100 DEG C. may then be heated at 120 DEG -160 DEG C. for 1-10 minutes in the presence of a resin forming catalyst.
Patent GB-439215-A (GB)
Title: Vulcanising rubber
IPC: C08K5/00
Filed: 1934-10-01
Abstract: Zinc dibutyldithiocarbamate is prepared by dissolving caustic soda in water, adding dibutylamine and carbon bisulphide successively to the cooled solution, and then adding zinc sulphate solution to precipitate the zinc salt.  Other heavy metal salts, e.g. lead salts, of the higher alkyl and aralkyl dithiocarbamic acids are prepared in similar manner.ALSO:A water-soluble heavy metal salt of a higher alkyl or an aralkyl dithiocarbamic acid is used as vulcanization accelerator, the higher alkyl group being a saturated open chain hydrocarbon radical of between 4 and 7 carbon atoms, and the aralkyl group being an aryl-substituted alkyl radical and not including hydrogenated cyclic radicals.  Only salts of a single acid radical are used.  Specified salts are zinc and lead dibutyl- and diamyl-dithiocarbamates and zinc dibenzyl dithiocarbamate.  Owing to their solubility in rubber solvents, these accelerators are especially valuable in rubber cements.  Examples are given of the treatment of crepe rubber and of latex.  Zinc dibutyldithiocarbamate is prepared by dissolving caustic soda in water, adding dibutylamine and carbon bisulphide successively to the cooled solution, and then adding zinc sulphate solution to precipitate the zinc salt.  Other heavy metal salts of the higher alkyl and aralkyl dithiocarbamic acids are prepared in similar manner.  Specification 208,235, [Class 70], is referred to.
Patent GB-912766-A (GB)
Title: Apparatus for bending glass sheets
IPC: C03B23/027
Filed: 1960-08-12
Abstract: 912,766. Glass-bending moulds. PITTSBURGH PLATE GLASS CO. Aug. 12, 1960 [Aug. 14, 1959], No. 28080/60. Class 56. In apparatus in which a movable mould member is connected to the fixed member by a knife-edge pivot, one of the members also carries a pin passing through a hole in a part carried by the other, the hole providing clearance for the pin of the knife edge pivot operates correctly but preventing excessive movement if there is relative displacement at the knifeedge pivot. The form shown comprises stationary shaping rails 11, 12, and pivoted end sections 25, 26, all of inverted T-section. This form also provides a longitudinal bend and a side plate 24 extending outwardly and upwardly from the rail 24 supports one edge of the glass in order to produce this bend. Each of the end sections 25, 26 carries projecting arms 36, by means of which the section is mounted on its pivot, and which carry counterweights 38. Movement of the end sections is limited by stops 40, attached to the rails 11, 12, to engage the arms 36 outwardly of the weights 38. Each of the hinges 42, 43 comprises a member, Fig. 3, with a central portion 70 attached to the arm 36 and having depending lugs 72, 68. The latter is notched when it rests on a knife edge 62 carried from the main frame. In the pivot 43 the knife edge 62 is itself notched at 76. The knife edge of the pivot 42 has a straight top. To prevent accidental separation of the parts of the pivot assembly a nut 66 is attached to the knife edge on the pivot axis and receives a bolt 74 passing with clearance through a hole 73 in the lug 72. Heat-absorbing members underlie each end of the glass sheet to prevent excessive softening. Another heat-absorber under the central part of the sheet comprises a wire mesh 48 and a plate 52. Specification 804,576 is referred to.
Patent GB-1312804-A (GB)
Title: Machine for wrapping articles in shrink film material
IPC: B65B9/02
Filed: 1970-06-10
Abstract: 1312804 Feeding webs KARL LIEBFRIED GmbH 10 June 1970 [20 June 1969] 28115/70 Heading B8R A machine for wrapping articles 1 in shrinkfilm comprises rollers 17 for supporting a first reel 7 of film 3; similar rollers for supporting a second reel 8 of film 4, and located on the opposite side of the conveyance path 2 of the articles 1, the films 3 and 4 being joined together at 6 for the wrapping operation; rollers 22 for supporting standby reels 19, 20 adjacent the reels 7 and 8 respectively; and two transverse welding devices 23, 24, 25, one located between reel 7 and a tensioning device 11 for the web 3 and the other located between reel 8 and a tensioning device 11 for the web 4. Thus, when a diameter-sensing detector 21 indicates that a reel, e.g. reel 8, is nearing exhaustion the wrapping machine is stopped, the reel is removed from the rollers 16, the standby reel 20 is rolled over from its support to replace the spent reel, and the leading end of the new reel is joined to the end of the old web 5 by the welding devices 23, 24, 25. The wrapping operation can then proceed as before after only a short interruption necessitated by the reel change.
Patent GB-1022516-A (GB)
Title: Stretching of polymer films
IPC: B29C55/06
Filed: 1964-07-08
Abstract: 1,022,516. Stretching films. UNILEVER Ltd. July 8, 1964 [July 9, 1963], No. 28125/64. Heading B5B. In a process for the continuous stretching and elongation of synthetic polymer films by passing them over at least two driven rollers rotating at different peripheral speeds and over at least one train of idler rolls arranged between two such driven rollers, the diameter of the idler rolls is less than 40 mm. In one embodiment, a film from a roll or from a calendar or extruder slot passes over driven feed roller 1, idler rolls 2a-2o, and driven discharge roller 3 rotating at higher peripheral speed than 1. Some of the idler rolls, e.g. 2a-2k may be heated by e.g. steam or electrical power, and some of the rolls, e.g. 21-2o may be chilled. The temperature of the rolls may vary from one roll to the next. The idler rolls are mounted on a frame (not shown) and the distances between adjacent rolls and their position relative to each other are adjustable. The peripheral speeds of the idler rolls may be independently reduced by known devices so that the peripheral speeds increase from roll to roll in the direction of feed of the film. The degree of " neck-down" of films longitudinally stretched on the apparatus is greatly reduced, so that some transverse stretching occurs with consequent biaxial orientation of the film, and increase in useful width of the stretched film. Specified films are films of polyethylene, polypropylene, polyvinyl and polyvinylidene chlorides, polyesters, polyamides and polycarbonates.
Patent GB-1193574-A (GB)
Title: Vitamin Compositions and a Process for the Manufacture Thereof.
IPC: A61K31/59
Filed: 1968-06-13
Abstract: 1,193,574. Vitamin compositions. F. HOFFMANN-LA ROCHE &CO. A.G..13 June, 1968 [16 June, 1967], No. 28150/68. Heading A5B. Stabilized vitamin A-containing conspostitions are in the form of solid discrete particles, each particle comprising an intimate admixture of (1) a vitamin A active material, (2) a carrier comprising a mixture of a hydrogenated fat, or fatlike material, having a melting point above 50‹C and a vegetable flour, (3) an antioxidant and (4) a preservative. Component (1) may be vitamin A alcelate or vitamin A palmitate; (3) may be 6-ethoxy-2,2,4-trimethyl-1, 2- dihydroquinoline or butulated hydnoxy-toluene and a synergist therefor e.g. tetradecyl butyl amine, diehanolamine or a salt thereof with a fatty acid containing (from 12 to 20 carbon atoms such as diethanolamine palmitate or stearate may also be present and (4) may be formaldehyde (preferably in the form of paraformaldehyde) or pchloro-m-cresol. Component (2) may be hydrogenated cottonseed oil, hydrogenated castor oil, glyceryl monostearate, spermaceti or cetyl alcohol and oatmeal, soya meal or wheat gluten. The composition may also contain non- toxic colouring substances and aroma-imparting substances, hardeners such as aluminium stearate and polyethylenes, surface active agents and other additives such as ethyl cellulose or lecithin. Other vitamins e.g. vitamins D, E and C may also be present in the compositions. The compositions may be prepared by intimately dispersing (1) in (2) and (3) and transforming the resulting product into solid discrete particles, (4) being added daring or after particle production.
Patent GB-850336-A (GB)
Title: "propellant compositions"
IPC: C06B45/10
Filed: 1958-09-02
Abstract: 850,336. Propellent compositions. YAMAMOTO, A. Sept. 2, 1958 [Nov. 28, 1957], No. 28169/58. Class 9(2). A propellent composition comprises as the fuel component at least one polyformaldehyde or derivative thereof as defined which is solid at room temperature and as the oxidizing component at least one oxidizing salt whose anion is NO 3 , CIO 4  or MnO 4 . The specified derivatives are those obtained by reacting the end group of a polyformaldehyde with a carboxylic acid (i.e. an ester derivative) an alcohol (an ether derivative) or an isocyanate (a polyurethane). Examples are paraformaldehyde, polyoxymethylene glycols, polyoxymethylenes, trioxane, cyclotetraoxymethylene and polyoxymethylene diacetates and dimethyl ethers. The oxysalt should be in amount at least 40% of that required for complete oxidation of the formaldehyde polymer or derivative. Other fuels such as metallic powders (magnesium, aluminium and beryllium) boron hydrides and alkyl borons may be present as may binders such as polysulphide rubber, urethane rubber, polyesters and epoxy-resins. Explosives such as hexogen, TNT, ammonium picrate, PETN may also be added to the compositions..
Patent GB-935294-A (GB)
Title: Improvements in or relating to pulse regenerators
IPC: H03K5/156
Filed: 1961-08-03
Abstract: 935,294. Code telegraphy. WESTERN ELECTRIC CO. Inc. Aug. 3, 1961 [Aug. 29, 1960], No. 28269/61. Class 40 (3). [Also in Group XL (c)] In a circuit responsive to pulse signals above a predetermined threshold level, the threshold level is set to one of two states depending whether or not a pulse has been received during the immediately preceding time interval. The invention enables more positive detection of the presence or absence of pulse signals in the presence of noise in unipolar or bipolar pulse code systems wherein each pulse occurs during a definite time period or " slot." The pulse signals are fed to the grid of valve T1 which is normally biased off by current in resistors 16, 17 and valve 12. If the signal is sufficiently large, T 1  will be made conductive, reducing the anode current of T 2  and providing a pulse on output lead 14. The pulse at the anode of T 1  is delayed at 13 by half a slot period before being used to cut off the anode current of valve 12 so that the threshold level is increased during the next time slot. Unipolar to bipolar pulse converter.-Fig. 9 shows the invention applied to a repeater of the type in which the polarity of alternate pulses is reversed (see Specification 935,293). Clock pulses at the basic repetition frequency are derived from the unipolar input signals by amplifier 74. The unipolar signals are fed in anti-phase to a pair of AND gates comprising diodes 110, 112; 114, 116 controlled by clock pulses from amplifier 74. The blocking oscillators 103, 104 can only operate when a negative pulse of amplitude greater than the threshold level at line 21 passes the appropriate AND gate to the base. The blocking oscillators thus operate alternately so that alternate pulses derived from the output transformer are reversed in polarity. The output pulses are delayed at 23 and fed to NPN transistor 25 and PNP transistor 24 which control the threshold level at line 21 in dependence on whether or not a pulse has been present in the preceding time slot.
Patent GB-1507305-A (GB)
Title: Workpiece feed mechanism
IPC: B65H3/24
Filed: 1974-09-02
Abstract: 1507305 Sheet feeding TOOL PRODUCTION & DESIGN CO Ltd 17 June 1975 [26 June 1974] 28280/74 Heading B8R A feed mechanism comprises a reciprocable feed member 12 having an aperture 13 which collects the lowermost workpiece from a magazine 14, 15 and delivers it to a die 11 for stamping. On reaching the die 11 the workpiece falls through aperture 13 while a feed element 18 on member 12 lifts the next workpiece from its supports in magazine 14, 15 and itself acts as a support surface then pushes the workpiece forward through slot 17 to await the return of aperture 13 into which the workpiece falls. Support points X, Y are positioned so that the workpieces incline slightly downwardly towards element 18. When thin, ferrous workpieces are being fed a magnet may be used as part of element 18 and a stripping member provided. Feed member 12 can be tilted anticlockwise (Fig. 1) to allow a workpiece to remain on die 11 if the latter has no recess.
Patent GB-711786-A (GB)
Title: Improvements in or relating to the manufacture of cigarettes
IPC: A24C5/52
Filed: 1950-11-20
Abstract: 711,786. Cigarette-making machines. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. Nov. 16, 1951 [Nov. 20, 1950], No. 28318/50. Class 130 Cigarettes deficient in " shorts " at the ends are made by feeding a stream of unwrapped tobacco filler lengthwise, as through a confining passage P of the kind described in Specification 646,746 and having a steel bottom plate 6 ending in a portion 6A curved to deliver the filler smoothly on to the travelling cigarette paper web 1 of a cigarette rod forming- mechanism, extracting shorts from spaced sections along the length of the filler, as by suction intermittently applied by a pump 10 through a receiver 9 and duct 8 to a grid 7 in the portion 6A, replenishing the sections by tobacco which is not all shorts and cutting the formed rod through the sections. Replenishment may be effected from the filler between the sections by acting thereon with tobacco-displacing means such as are described in Specification 689,590 or comprising fingers 4A ... 4D of diminishing height mounted in spaced groups on a rotating wheel 3 as described in Specification 711,783, or may be effected by supplying tobacco, which may be all long shreds or substantially so, from a source other than the filler. Specification 692,880 also is referred to.
Patent GB-521793-A (GB)
Title: Improvements in automatic control apparatus operated by temperature or other variable
IPC: G05D23/20
Filed: 1938-09-30
Abstract: 521,793. Automatic control systems. LOBLEY, A. G., BIRMINGHAM ELECTRIC FURNACES, Ltd., FENNELL, C. A. F., and FOSTER INSTRUMENT CO., Ltd. Sept. 30, 1938, No. 28415. [Class 38 (iv)] Temperature &c. - Apparatus automatically controlling a variable such as the temperature of a furnace comprises a controller 1 and a safety control or alarm device operative at an excessive temperature &c. and common means are provided for simultaneous equal adjustment of those values at which the controller and safety device operate. The . knob 19, when pressed against a spring and turned, operates through a clutch 18b mechanism adjusting a shaft 21 to set the operating temperature of the controller 1 and a nut 8 adjusting a lever element 6a which is actuated by the presser bar 3 and arm 2 of a recording apparatus when temperature is excessive to release a switch 11 giving an alarm and/or causing a cessation of heating. The knob 19 also actuates a rod 23 to prevent operation of the presser bar of the controller to suspend automatic control during adjustment. Independent adjustment of the nut 8 may be made by a knob 24, a friction clutch 14 then slipping. A clutch 15 may be operated to separate the controller and recorder when required. The invention is described in connection with a furnace control system as set forth in Specification 391,170, [Group XI], which is referred to. The controller 1 may be of the kind described in Specification 441,640, [Group XXXVII].