baber/WOPTO huggingface dataset:
Patent GB-1224045-A (GB)
Title: A method for protecting polyamide fibres or filaments
Inventor: DITHMAR KARL
IPC: D06L4/12
Filed: 1968-08-26
Abstract: 1,224,045. Bleaching polyamide textiles. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT VORMAL S ROESSLER. 26 Aug., 1968 [26 Aug., 1967], No. 40729/68. Heading D1P. Polyamide fibres, filaments or textiles are protected against attack by bleaches and detergents containing active oxygen compounds, during a washing or bleaching treatment, by the presence of at least one agent comprising biguanide, a derivative thereof substituted in the 1- and/or 5-position by an optionally substituted C 1 _ 6  alkyl group or cycloalkyl group wherein each amino or imino group of the biguanide moiety still contains at least one hydrogen atom and/or a salt of said biguanide or derivative. In the Examples fibres of 6, 6-polyamide or 6-polyamide are bleached in a bath containing H 2 O 2 ' magnesium sulphate, water glass and one of the protecting agents biguanide, 1-methyl-, 1-n-propyl-, 1-isopropyl, 1-n-hexyl-, 1-cyclohexyl or 1, 5-dimethyl-biguanide.
Patent GB-1519293-A (GB)
Title: Conveying cigarettes and other rod like articles
IPC: A24C5/35
Filed: 1975-09-30
Abstract: 1519293 Endless conveyers feeding cigarettes MOLINS Ltd 30 Sept 1975 40803/77 Divided out of 1519292 Heading B8A Pairs 71 (Fig. 6) of cigarettes joined by double length filter portions are conveyed by a drum 70 and are divided by a cutter (not shown) into two streams. These are fed to respective fluted wheels 75, 76, which rotate at different speeds to stagger the cigarettes, thereby enabling them to be combined by a ramp 78, into a single stream on a drum 79. They then pass alternately on to respective conveyers 83, 86, on each of which they build up into a stacked disposition. The stacks pass into respective shoots 88, 89, which combine at their lower ends, after the shoot 89 has turned through 180 degrees. A flap 91A is controlled by sensors 93, 94, responsive to the flow of cigarettes on the respective conveyers 83, 86. Alternatively, the flap 91A may be replaced by a fixed wall, the sensors 93, 94, then controlling the speeds of the conveyers 83, 86. Cigarettes may be hand-sampled from the conveyers 83 and 86. Other embodiments (Figs. 1-3, not shown), are identical to those described with reference to Figs. 1 to 3 of the Specification 1,519,292.
Patent GB-1043996-A (GB)
Title: Polyurethane gums
Inventor: HEISS HERBERT LOUIS
IPC: C08G18/24
Filed: 1963-10-16
Abstract: A millable polyurethane gum is prepared by reacting  (A) From 10-50 equivalent per cent of a dihydric polyalkylene ether glycol having an equivalent weight of 750-1250.  (B) From 10-55 equivalent per cent of water.  (C) From 5-60 equivalent per cent of a dihydric alcohol having an equivalent weight between 30 and 90.  (D) An amount of tolylene diisocyanate to give an NCO to H ratio (defined) of from 0.900 to 0.990 and  (E) At least a catalytic amount of an organotin compound; said equivalent per cent of dihydric polyalkylene ether for a given equivalent per cent of dihydric alcohol being from <FORM:1043996/C3/1> The term "equivalent per cent" of a particular reactant is defined as the number of equivalents of that reactant divided by the total number of equivalents of water, polyalkylene ether glycol and dihydric alcohol times one hundred. where the term "equivalent" is defined as the quotient of the gram molecular weight of the reactant divided by its functionality.  The term "H" includes all the active hydrogen obtained from the hydroxyl groups of the polyalkylene ether glycols, any triol which may be present, the dihydric alcohol and the water.  A polyether triol may replace part of the polyether glycol.  In Example (1) 2.42 equivalents of polypropylene glycol of MW 2000, 4.20 equivalents of 1,4 butane diol, 3.38 equivalents of water and 9.50 equivalents of a mixture of tolylene diisocyanate isomers were mixed together with stannous octoate.  The mixture was poured on to a tray and heated at 90 DEG C. to obtain a gum which could be milled with the addition of diphenyl methane 441 diisocyanate.
Patent GB-1359261-A (GB)
Title: Circular knitting machine for producing fabric having pile material enmeshed into a ground knitted fabric
IPC: D04B9/12
Filed: 1972-09-04
Abstract: 1359261 Knitting-machines SCHUBERT & SALZER MASCHINENFABRIK AG 4 Sept 1972 [2 Sept 1971] 40950/72 Heading D1C In a circular machine including pile-formnig sinkers, the upper ends of the needles are prevented from flexing by a support in the vicinity of the knocking-over plane A. In a first embodiment, Figure 1, the support 4 isprovided at the top of the cam carrier 3. It has slots 40 to permit rocking of the sinkers 2, which thus entrain the support. Alternatively the support may have its own drive. In the embodiment of Figure 2 the needles are supported by a member 6 carried in slots 14 in the trick wall inserts.
Patent GB-1277402-A (GB)
Title: Flame detection system
Inventor: WADE KENNETH ROBINSON
IPC: F23N5/12
Filed: 1968-08-27
Abstract: 1277402 Flame detecting device UNITED GAS INDUSTRIES Ltd 21 Aug 1969 [27 Aug 1968] 40958/68 Heading F4T A flame detector 5 which makes use of rectifying action of a flame, comprises electrodes 11, 12 across which is supplied, via a d-c blocking capacitor 14, an alternating voltage so that when a flame is present at the burner 13 the rectifying action thereof causes a charge to build up on the capacitor 15, thus applying a potential difference between the base and emitter of PNP transistor 19 and rendering it conductive. A NPN transistor 21 has its base connected to the emitter of transistor 19 so that when transistor 19 is conductive 21 is non-conductive which in turn renders the emitter of transistor or 24 positive with respect to earth and thus diode 26 conductive and provides the "flame present" or "OR" line with an output. If a flame is absent the emitter 24 is negative with the result that diode 27 is rendered conductive and an output provided in the "flame absent" or "AND" line. A plurality of such detectors are used for a set of burners having a common fuel supply, in which case all the "OR" lines are connected to a common thyristor 32 which operates a relay 33 which is energized when any flame is present, while the AND lines are connected to a common thyristor 36 which operates a relay 37 which is not energized if any flame is absent. The relays 33, 37 are incorporated in a controller 6 which opens the fuel supply prior to ignition only if both relays are not energized, i.e. flames are absent from each burner, the valves being maintained open after ignition only if both relays 33 and 37 are energized i.e. fumes are present at every burner.
Patent GB-1447544-A (GB)
Title: Electronic keyboard musical instruments
IPC: G10H1/24
Filed: 1973-08-31
Abstract: 1447544 Electrophonic musical instruments A C N MACKENZIE OF ORD and G C GODDARD 10 Oct 1974 [31 Aug 1973] 41098/73 Heading G5J To allow production of scales of various temperaments in an electrophonic keyboard instrument means are included comprising a voltage controlled oscillator 4 outputing to 5 and feeding back via 7 and 6 to a comparator unit 1 where its frequency is compared with the sum of inputs 8, from a highly stable base frequency, and 9, from a difference frequency source. The result is fed via a digital-to-analogue converter 2 and integrator 3 to control the V.C.O. output. Eleven such systems, wherein the output of the difference source can be altered to produce differing temperaments, and an output deriving from the base frequency, form a scale. A slide-in template, Fig. 2 (not shown), may be provided for each desired temperament to set simultaneously potentiometers or other elements controlling the difference source frequencies.
Patent GB-1393364-A (GB)
Title: Method of manufacturing semiconductor devices
IPC: H01L21/60
Filed: 1971-09-03
Abstract: 1393364 Making semi-conductor devices LUCAS ELECTRICAL CO Ltd 31 Aug 1972 [3 Sept 1971] 41135/71 Heading H1K In making a semi-conductor device accurate alignment of parts is achieved using the surface tension exerted by molten solder. As shown, a mild steel header 12 is provided with a copper insert 14 which carries a solder platform 15 made as a preform, a solder-paste layer, or a dipcoated layer. A thyristor water 11 is drawn from a feeder (not shown) on to the header which is carried by a conveyer belt (not shown). The wafer is placed with its anode surface down and cathode and gate contacts up, and in approximately correct position and orientation. Copper connectors 17a, 17b, initially formed as a one-piece bridge, are placed over insulated terminal pins 16, and have ends blades 18 resting on respective electrodes of the wafer. Solder preforms are provided or the blades are dipcoated with solder. Solder rings are placed over the connectors on the terminal pins. The connectors (since still in their one-piece bridge) cannot move angularly and when the assembly is heated the surface tension of the molten solder from the platform 15 (and possibly of the molten solder at the end blades) completes the alignment of the assembly which is then allowed to cool.
Patent GB-1043189-A (GB)
Title: Improvements in or relating to station searching devices for radio receivers
IPC: H01H21/40
Filed: 1963-10-18
Abstract: 1,043,189. Motor-driven tuning. STANDARD TELEPHONES & CABLES. Oct. 18, 1963 [Oct. 19, 1962], No. 41242/63. Heading H3Q. [Also in Division H2] A bead attached to a pointer drive-cord of a motorized tuning drive actuates the operating lever 1 of a snap-action switch (see Division H2) constructed such that its operation occurs precisely at the extreme indications for stopping and reversing the motor.
Patent GB-867138-A (GB)
Title: Photographic emulsions
Filed: 1959-12-04
Abstract: 867,138. Photographic silver halide emulsions. DU PONT DE NEMOURS & CO., E. I. Dec. 4, 1959 [April 1, 1959], No. 41322/59. Class 98(2) An emulsion is prepared by dispersing silver halide in an aqueous gelatin solution, adding an anion soap to form a gelatin-anion soap complex containing dispersed silver halide grains, and dispersing the complex in an aqueous solution of a water-soluble polyvinyl alcohol binder which may be a hydrolyzed polyvinyl ester such as the acetate containing up to 20% of ester groups. Preferably the complex formed is coagulated before dispersion in the polyvinyl alcohol binder solution. Typically the temperature of the resulting dispersion is raised to say 60C., sensitizers such as gold and sulphur sensitizers are added, the emulsion is digested and then cooled to 40 to 45 C. whereafter the pH is raised to 10 and then coated on a support. After digestion antifoggants, stabilizers and emulsion hardeners such as titanyl complexes formed by reacting a tetra-alkyl titanate with an o-hydroxy carboxylic acid may be added. Reference is made to the addition of titanium lactate after digestion and cooling. In an alternative method the emulsion is twice coagulated before the addition of the anion soap. Thus there is added to a gelatino-silver iodobromide emulsion a small amount of acetic acid and a water-soluble acid-soluble partial acetal of polyvinyl alcohol and the sodium salt of o-sulphobenzaldehyde, and the temperature is adjusted to 15C. and the pH to 2 ' 5 to 3,0 with sulphuric acid to coagulate the emulsion. After washing and redispersion in aqueous gelatin solution and the addition of potassium chloride, gold and sulphur sensitizers are added and the emulsion digested, cooled and treated with acetic acid to again coagulate the suspended matter, and after again washing, sodium dodecyl sulphate is added to form the gelatin-anion soap complex. The emulsions show high resistance to dimensional change, blistering, and deterioration when subjected to high intensity arc light projection. Emulsions with gelatin as binder in place of the polyvinyl alcohol are produced for control purposes. Specification 580,504 is referred to.
Patent GB-1286602-A (GB)
Title: Improvements in or relating to differential amplifiers
IPC: H03F3/34
Filed: 1970-08-28
Abstract: 1286602 Transistor differential amplifiers SIEMENS AG 28 Aug 1970 [29 Aug 1969] 41439/70 Heading H3T A monolithic integrated circuit differential amplifier comprises a first pair of closely adjacent transistors T3, T4 of one conductivity type having collector loads consisting of a second pair of closely adjacent transistors T1, T2 which are lateral type and of opposite conductivity to the first pair, the second pair being controlled by an auxiliary differential amplifier comprising a further pair of transistors T5, T6 of the same conductivity as the first pair, the arrangement being such that differential inputs (at E1, E2) produce a single ended output UA. It is explained that with equal inputs the collector currents of T3, T4 must be equal and there is no current through load resistor RL, but without the auxiliary differential amplifier T5, T6 the symmetry would be upset by the base currents of T1, T2 (which would be connected to K1) unless the gain of T1, T2 were unobtainably high.
Patent GB-1084386-A (GB)
Title: Sheet printing, counting, collating and stacking machine means
IPC: B65H39/105
Filed: 1965-09-30
Abstract: 1,084,386. Sheet collators. R. G. LOWE. Sept. 30, 1965 [Nov. 12, 1964], No. 41529/65. Heading B6H. The sheet collating apparatus as described in Specification 946,975 is modified in that the sheet collating is controlled automatically by a perforated record tape 33 coacting with contactors 40 ... 44 to permit any preselected number of printed sheets to be inserted in the pockets 38 (Fig. 2) of the collator drum 20. The record tape is punched selectively with perforations 45 in five rows, contactor 40 indexing the drum stepwise a distance equivalent to one pocket and the pocket dwells at one position adjacent the sheet delivery end of the sheet conveyer belt 36 until the respective number of sheets has been deposited in the pocket. The number of sheets deposited in the pocket may be controlled by perforations 45 if the number is small or by auxiliary counters 69 (Fig. 1), connected in series and actuated in sequence, by auxiliary counter contactor 44. Unwanted sheets are deposited in a tray 19, by a switch 37 actuated by a gate sheet contactor 41. Sheets passing into the pockets 20 or tray 19 are counted by switches 89, 99 and send their output signal to count down switches which are reset to emit a signal which is sent either to the pocket indexing control circuit or gate sheet control circuit.
Patent GB-1486308-A (GB)
Title: Ceramic capacitors and circuit boards
IPC: H05K1/03
Filed: 1974-09-24
Abstract: 1486308 Capacitors; printed circuits NL INDUSTRIES Inc 24 Sept 1974 [24 Sept 1973] 41564/74 Headings H1M and H1R An intermediate in the manufacture of multilayer ceramic capacitors or circuit assemblies comprises stacked layers of ceramic material sintered to provide a dense monolithic body, the layers being separated by spaces corresponding to the eventual electrodes or circuit conductors, which spaces extend to an outside surface of the body directly or via another such space. The spaces are then filled with conductive material in a similar manner to that disclosed in Specification 1,373,575 or the modification thereof in Specification 1,424,879 and electrical connection is made to the electrodes or conductors at the edges of the ceramic body. To manufacture the intermediate body, layers of green ceramic are stacked with intervening layers of material which will volatilize completely on firing, these layers in the case of a multilayer capacitor extending alternately to opposite side faces of the stack but otherwise lying within the area of the ceramic layers. The volatile material may be a phenol modified rosin ester, ethyl cellulose, acrylic resin or polyvinyl alcohol, optionally containing volatile particulate material. It may be applied as a preformed film or by painting or printing. In a batch process, a repeating pattern of deposits of the volatile material is applied to a green ceramic sheet or strip, a plurality of these are stacked with deposits overlapping and alternate ones in register and the assembly is severed into individual capacitor precursors before or after firing. In the case of circuit assemblies, the volatile material is deposited in thin strips and also occupies holes in the ceramic layers for eventual interlayer connections.
Patent GB-968777-A (GB)
Title: Improvements in and relating to pneumatic fluid pumps
IPC: F04B39/10
Filed: 1962-11-02
Abstract: 968,777. Oscillating motors. ROBERT. SHAW CONTROLS CO. Nov. 2, 1962 [Nov. 3, 1961], No. 41573/62. Heading H2A. [Also in Divisions D1, F1 and F2] The faces of rectangular sectional poles 30, 32, Fig. 3, of a laminated core 28 register with corresponding apertures 44, Fig. 5 (not shown), cut in an armature 36 having its mid-point adjustably connected by a grommet and a threaded rod 64 to the exhaust housing 78 of a vacuum pump 20 of the diaphragm type (see Division F1) and having one end connected by a leaf spring 38, Fig. 1, secured to a baseplate 34 to which is also secured a pump supporting bracket 50. The face of each pole 30, 32 is oppositely chamfered to angles of about 15 degrees at 150, 152 which corresponds to the concavity 154, Fig. 6 (not shown), of the diaphragm-contacting inner face of the inlet housing 62 of the pump. In a modification the inlet housing 207, Fig. 14, is secured to the midpoint of the cross-member of a C-shaped frame the upper limb 194 of which carries a motor coil 196 whilst the lower limb 195 carries a leaf spring 197 to which is secured the armature 198 and the exhaust housing 201 of the pump.
Patent GB-1272608-A (GB)
Title: Quinacridone pigment and imaging process therewith
IPC: G03G17/04
Filed: 1969-08-20
Abstract: 1,272,608. Photoelectrophoretic quinacridone pigments. XEROX CORP. 20 Aug., 1969 [22 Aug., 1968], No. 41587/69. Heading H1K. [Also in Division C4] Quinacridone pigments of the formula wherein each R is CH 3 , C 2 H 5 , OCH 3 , OC 2 H 5  or halogen and each R<SP>1</SP> is an aromatic, heterocyclic, aliphatic or cycloaliphatic group are used in a photoolectrophoretic image process.
Patent GB-416218-A (GB)
Abstract: 416,218. Calculating-apparatus. FAIRBROTHER, H., 30, Ludgate Hill, London.- (Pronto Akt.-Ges. ; 3, R÷ssligasse, Z³rich, Switzerland.) Nov. 28, 1933, No. 33340. [Class 106 (i).] A tabular apparatus for displaying calculated data or other variable information comprises an outer guide or sleeve-like casing in which a plurality of sliding elements or tongues are mounted, the tongues being formed with slots through which pass pins to prevent their complete withdrawal from either end of the casing. In the form shown in Figs. 1 and 2, the casing 1 is provided with apertures 2, 3, and 4 arranged at opposite ends and the tongues 5 are provided with corresponding apertures so as to enable the tabular indications on any one of them to be exposed. The casing and tongues are formed with notches 9 at opposite ends disposed at different positions at each end to facilitate the gripping and setting of the tongues. Alternate tongues are arranged to be drawn out from opposite ends. Each tongue has an elongated slot 12 engaged by a screwed stop pin 15 which passes through the casing and prevents complete withdrawal of the tongues. In the form shown in Fig. 4 the tongues are provided with two slots 12 and have marked thereon entries relating to the addresses and numbers of telephone subscribers.
Patent GB-416498-A (GB)
Abstract: 416,498. Calculating - machines. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A. March 16, 1933, No. 7946. Convention date, March 19, 1932. [Class 106 (i).] In a calculating-machine having a plurality of totalizers selected for actuation by a travelling paper carriage, the carriage - controlled selecting mechanism is optionally rendered inoperative upon the depression of a total-taking key, so that the total from the corresponding totalizer may or may not, as desired, be transmitted to the totalizers which are at that time being selected by the carriage stops. The invention is described as applied to a machine of the Ellis type described in Specifications 28253/08, [Class 106], and 348,105. The totalizers are selected for actuation by carriage stops each of which raises a link 15 and rocks a lever 17 to allow a lever 19 pivoted at 18 to be tripped by its spring 191. A pin 20 on the lever 19 is thus moved beyond the range of a lever 21 carried by a floating lever 23 pivoted to the operating plate 24. At the subsequent clockwise movement of the plate 24 about its pivot 25 a projection 26 engages the lower end of the lever 21 and rocks to the right a link 22 which causes the engagement of the corresponding totalizer. Upon the depression of a total key 35 a total cam 40 is moved into the path of the floating lever to effect the total-taking operation, in known manner. If the carriage stops are so situated that (say) totalizers Nos. 1 and 2 will be selected, and the No. 3 total key 42 is depressed, the carriage-controlled selecting means may be disabled, as otherwise the total taken from No. 3 totalizer would be transmitted to Nos. 1 and 2. The latch 43 of the No. 3 total key 42 has a pin 45 which moves to the right a link 46 pivoted to a lever 47, Fig. 3, to bring steps thereon into engagement with faces 51 on the levers 19 controlling totalizers Nos. 1 and 2. These totalizers are thus not engaged, even though the corresponding levers 17 have been moved by stops on the carriage. The link 46 may be disabled by a finger-lever 52 which lifts it above the pin 45.
Patent GB-982230-A (GB)
Title: Improvements in or relating to methods and apparatus for peeling and dividing veneer
IPC: B27L5/08
Filed: 1963-10-23
Abstract: 982,230. Turning. JONKOPING-VULCAN A.B. Oct. 23, 1963 [Oct. 24, 1962], No. 41852/63. Heading B3T. [Also in Division B5] A method of peeling and dividing veneer which is fed in a single layer 2, Fig. 1, to a cutter 7 directly associated with the veneer peeling knife 3 and by means of which the peeled veneer is divided, for example, into match splints or blanks for inner or outer boxes, comprises utilizing gas or air streams for advancing the peeled veneer towards the cutter. A pressure bar 15 co-operates with the knife and is carried by a pair of arms 14 movable about a pivot 12 by a lever 16 connected to a pneumatic cylinder 17, operation of which raises the bar to provide access to the knife for sharpening purposes. The peeled veneer is fed by a device 5, Fig. 2, to the cutter 7 which has a plurality of blades 13 secured to a cutter body by holders 23 and bolts 24. The cutter is disposed in a housing having an upper part 8 rotatable about a pivot 20 to provide access to the cutter. The feeding device consists of upper and lower rollers 26, 31 formed with spaced portions 29, 34, Fig. 3, the upper roller also carrying knives 30 which co-operate with recesses formed by discs 35 in the lower roller to cut the veneer into widths corresponding to the desired length of the matches or the inner or outer boxes. The veneer 2 fed by the rollers 26, 31 passes between upper and lower plates 47, 48, the upper plate being formed with teeth 49, Fig. 4, providing clearance spaces 51 for the portions 29 of the upper roller, and teeth 50 providing clearance spaces 52 for rollers 45 carried on a shaft 43, Fig. 2, supported by the arms 38 of bell-crank levers which are rockable about the axis of the upper roller 26 by a spring 40 to press the rollers 45 against the upper surface of the veneer, the rollers 45 being rotated by a belt or chain drive from the roller 26. The lower plate 48 has a main duct 56 which is connected to a source of compressed fluid and joined to passages 57 extending along teeth having clearance spaces therebetween for the portions 35 of the lower roller 31. Each passage has a plurality of inclined holes 58 from which jets of fluid are emitted to assist in feeding the veneer to the cutter 7; the jets also act to feed pieces of veneer to the cutter which are shorter in length than the distance between the rollers 45 and the common axial plane of the rollers 29, 31.