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公开(公告)号：US3926525A
公开(公告)日：1975-12-16
申请号：US46815774
申请日：1974-05-08
申请人： ILFORD LTD
CPC分类号： G01J1/24
摘要： A photometric apparatus wherein a reference beam and a measuring beam are modulated by passing them through a light modulating system. The light modulating system comprises an optical density wedge having parallel isopaques which are contours of constant density and which is rotatable about an axis perpendicular to the plane of the wedge and which is so located in the photometric apparatus that rotation of the wedge in one direction increases the optical transmission of the reference path and decreases the optical transmission of the measuring path and rotation of the wedge in the other direction decreases the optical transmission of the reference path and increases the optical transmission in the measuring path.
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公开(公告)号：US3877333A
公开(公告)日：1975-04-15
申请号：US41320373
申请日：1973-11-06
申请人： ILFORD LTD
CPC分类号： G03C1/765 , G03D15/046 , Y10T83/0419 , Y10T83/0443 , Y10T83/0505 , Y10T83/0524 , Y10T83/4567 , Y10T83/4645 , Y10T83/6572
摘要： Method of performing a cross cutting operation on a travelling flexible web of material to form discrete sheets of material followed by an operation on the trailing edge of the thus formed severed sheet of material, which method comprises moving the leading edge of the web to a clamping station, clamping the leading edge of the web, cross cutting the web to form a severed sheet of the flexible web material, causing the middle of the severed sheet to bow in a pre-determined curvature whilst maintaining the trailing edge of the sheet parallel to the position in which it was cross cut, thus causing the trailing edge of the sheet to move towards the leading edge of the sheet by a pre-determined distance and then performing the operation on the trailing edge of the severed sheet.
摘要翻译： 在行进的柔性幅材材料上执行横切操作以形成分立的材料片的方法，随后在如此形成的切断的材料片的后缘上进行操作，该方法包括将幅材的前缘移动到夹紧 站，夹紧幅材的前缘，横切纸幅以形成柔性幅材材料的切断片材，导致切断的片材的中间以预定的曲率弯曲，同时保持片材的后缘平行于 其横切的位置，从而导致片材的后缘朝着片材的前缘移动预定距离，然后在切断的片材的后缘上执行操作。
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公开(公告)号：US3839046A
公开(公告)日：1974-10-01
申请号：US29708572
申请日：1972-10-12
申请人： ILFORD LTD
发明人： GENT M , SANDERSON B
IPC分类号： G03C5/30
CPC分类号： G03C5/30
摘要： This invention relates to the rapid processing of photographic material. The development takes place in a solution which contains a 3-pyrazolidone compound, a hydroquinone and a development anti-foggant.
摘要翻译： 本发明涉及照相材料的快速加工。 显影发生在含有3-吡唑烷酮化合物，氢醌和显影防雾剂的溶液中。
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公开(公告)号：US3821295A
公开(公告)日：1974-06-28
申请号：US39677573
申请日：1973-09-13
申请人： ILFORD LTD
发明人： EZEKIEL A
IPC分类号： G03C1/34 , C07C149/24
CPC分类号： G03C1/346
摘要： A process for the production of an Alpha -amino-acid hydrohalide of the formula
WHEREIN R1 is a hydrogen atom or a methyl or ethyl group, A is Cl, Br or I, x is 0, 1 or 2 and y is an integer from 1 to 6 is described. A compound of the formula
OR A HYDROHALIDE SALT THEREOF IS REACTED WITH A HYDROHALIDE OF A COMPOUND OF THE FORMULA
D R A W I N G-
公开(公告)号：US3818861A
公开(公告)日：1974-06-25
申请号：US27162172
申请日：1972-07-13
申请人： ILFORD LTD
发明人： TURNER G
CPC分类号： B05C1/0856 , B05C1/0808
摘要： This invention relates to a to a device for coating stripes on a travelling web from a transfer roller having peripheral rings. The amount of coating liquid to be taken up from the transfer roller is metered by means of an array of rigid adjustable doctor blades.
摘要翻译： 本发明涉及一种用于在具有外围环的转印辊上在行走幅面上涂布条纹的装置。 从转印辊取出的涂布液的量通过一组刚性可调节刮刀计量。
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公开(公告)号：US3773517A
公开(公告)日：1973-11-20
申请号：US3773517D
申请日：1972-04-04
申请人： ILFORD LTD
发明人： DODWELL G
IPC分类号： C08F283/06 , G03C1/043 , G03C1/04
CPC分类号： G03C1/043 , C08F283/06
摘要： Photographic silver halide emulsions an produced by means of silver halide, gelatin and a polymer latex. The latter is prepared by copolymerization of a monomer yielding a water insoluble homopolymer and a monomer yielding a watersoluble polymer. Copolymerization takes place in the presence of a salt of an alkyl aryl polyether phosphate and the free acid of such salt or a non-ionic alkyl polyether compound.
摘要翻译： 通过卤化银，明胶和聚合物胶乳制备的照相卤化银乳剂。 后者通过使产生水不溶性均聚物的单体和产生水溶性聚合物的单体的共聚来制备。 在烷基芳基聚醚磷酸盐和这种盐的游离酸或非离子烷基聚醚化合物的盐存在下进行共聚。
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公开(公告)号：US3759931A
公开(公告)日：1973-09-18
申请号：US3759931D
申请日：1971-10-22
申请人： ILFORD LTD
发明人： BROWN D , FICKEN G , TREHERNE E
CPC分类号： C09B23/105 , G03G5/0661 , G03G5/067 , G03G5/0698 , G03G5/09
摘要： WHEREIN R is alkyl or aralkyl, X is oxygen or sulphur, m is 0 or 1, n is 0 or 1, p is 1 to 4 and D is the residue of a heterocyclic ring, electrophotographic material comprising said dyestuffs as sensitizers and a liquid sensitizer for electrophotographic material are disclosed.
New merocyanine dyestuffs of the formula摘要翻译： 新的具有下式的部花青染料WHEREIN R是烷基或芳烷基，X是氧或硫，m是0或1，n是0或1，p是1到4，D是杂环的残基，电子照相材料包括所说的 公开了作为敏化剂的染料和电子照相材料的液体增感剂。
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公开(公告)号：US3733335A
公开(公告)日：1973-05-15
申请号：US3733335D
申请日：1971-01-06
申请人： ILFORD LTD
发明人： ANDERSON B
CPC分类号： G03C7/32 , G03C7/3231
摘要： THIS APPLICATION DESCRIBES AN INDAZOLONE MAGNETA COUPLER OF THE FORMULA:
3-(O=),Q-2,3-DIHYDRO-1H-INDAZOLE
WHERE Q IS EITHER A GROUP -NH-R WHEREIN R IS AN ACYL GROUP CONTAINING A NITROGEN ATOM TO WHICH THERE IS ATTACHED EITHER DIRECTLY OR VIA A PHENYL GROUP AN ALKYL RESIDUE OF AT LEAST 10 CARBON ATOMS, TOGETHER WITH A FREE CARBOXYLIC ACID GROUP OR A GROUP WHICH CAN LIBERATE A FREE CARBOXYLIC ACID GROUP OR Q IS A GROUP -N-
公开(公告)号：US3701680A
公开(公告)日：1972-10-31
申请号：US3701680D
申请日：1971-02-08
申请人： ILFORD LTD
CPC分类号： G03C1/93 , Y10T428/31786
摘要： THIS APPLICATION DESCRIBES A PROCESS FOR THE PRODUCTION OF FILM BASE MATERIAL WHCH COMPRISES TREATING ONE SIDE OF A FILM OF SYNTHETIC LINEAR POLYESTER OF HIGHLY HYDROPHOBIC CHARACTER WITH AN ORGANIC SOLVENT SOLUTION OF A PHENOLIC ADHESION PROMOTIONG AGENT, REMOVING THE SOLVENT AND COATING ON TO THE TREATED SIDE AN ORGANIC SOLVENT SOLUTION OF AN ORGANIC DICARBOXYLIC ACID HALF ESTER OF A PHENOXY RESIN WHICH HAS THE FORMULA:
C(-R5)(-O-R8)-C(-R6)(-R7))N-
-(O-1,4-PHENYLENE-C(-R1)(-R2)-1,4-PHENYLENE-O-C(-R3)(-R4)-
WHEREIN EACH OF R1-R7 IS A HYDROGEN ATOM OR A LOWER ALKYL OR CYCLOHEXYL GROUP, R8 IS A HYDROGEN ATOM OR REPRESENTS THE ACYL RESIDUE OF A HALF ESTER OF AN ORGANIC DICARBOXYLIC ACID, N IS AT LEAST 50, AND FROM 10 TO 95% OF THE R8 GROUPS ARE A SAID ACYL RESIDUE.-
公开(公告)号：US3701661A
公开(公告)日：1972-10-31
申请号：US3701661D
申请日：1970-11-25
申请人： ILFORD LTD
发明人： BRAND BORIS PETER
CPC分类号： G03C7/39236 , G03C7/413
摘要： THIS APPLICATION DESCRIBES A COMPOUND OF THE FORMULA:
1-(R1-O-),2-(R2-N(-R3)-CO-),4-(HO3S-)NAPHTHALENE
WHEREIN R1 IS SELECTED FROM AN ALKYL, ARALKYL, ALKARYL, ACYL AND A SUBSTITUTED ACYL GROUP AND R2 AND R3 ARE EACH SELECTED FROM A HYDROGEN ATOM AND AN ALKYL, ARALKYL, ALKARYL, ARYL AND A SUBSTITUTED ARYL GROUP. COMPOUNDS OF THIS FORMULA ARE OF USE IN COLOUR PHOTOGRAPHY. WHEN THE COMPOUNDS ARE PRESENT DURING THE COLOUR DEVELOPMENT OF SILVER HALIDE PHOTOGRAPHIC MATERIAL THEY CAUSE AN INCREASE IN DENSITY OF THE RESULTANT DYE IMAGE.
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