Abstract: A coordinate measuring machine having a gate-type slider device, which includes a pair of columns in a parallel state to each other and a beam crossing from one column to another one, the gate-type slider being movable with reference to a table, so that the coordinate measuring machine is capable of the measurement of dimensions and configuration of an object to be measured by using a measuring element which is attached to the slider device; the coordinate measuring machine having at least one driving device for moving the slider device by relating to the column, the driving device being above the table and below the center of gravity of the slider device, so that the inertia of the slider is minimized and the fine measurement is performed.

Abstract: A coordinate measuring machine capable of selectively setting the origin of measurement by origin point blocks each of which are provided on the base plate of the coordinate measuring machine. In a condition where dust becomes attached to the origin point block, the origin of measurement is missed and the accuracy of the measurement is therefore unreliable. The machine in this invention is arranged to employ cover devices (40A, 40B, 80) to enclose origin point blocks (50A, 50B, 70) respectively and to occasionally expose a portion thereof by an opening and closing motion. That is, only when setting the origin of measurement is the cover opened. This prevents the origin point block from collecting dust thereon suspended in the air. In this end, the origin of measurement can be set precisely to execute an accurate measurement of the object to be measured.

Abstract: Ventilating equipment for railway rolling stock including a low-pressure supply air blower, a high-pressure supply air blower, a low-pressure exhaust air blower, and a high-pressure exhaust air blower. This ventilating equipment ventilates car interior during travel of a train outside of tunnels by the low-pressure supply air blower and the low-pressure exhaust air blower, and also ventilates the car interior during travel in tunnels by the high-pressure supply air blower and the high-pressure exhaust air blower. The high-pressure supply air blower and the high-pressure exhaust air blower produce a higher discharge pressure than a changing external pressure during a high-speed travel in tunnels, thereby preventing the propagation of an influence of the changing external pressure into the car interior.

Abstract: An electrophotographic photosensitive member has a photosensitive layer on an electroconductive support. The photosensitive layer comprises a compound represented by the general formula (1) or (2) having in the molecule thereof an electron-donating portion and an electron-accepting portion: ##STR1## where D is an electron-donating aromatic group or an electron-donating heterocyclic group; A is an electron-accepting aromatic group or an electron-accepting heterocyclic group; B is a hydrogen atom, or an aromatic or heterocyclic group which may form a ring together with A or D; m is an integer of 1, 2 or 3; and n is an integer of 0 or 1.

Abstract: A 5H-dibenzo [a,d] cycloheptenylidene derivative and a 5H-dibenzo [1,d] cycloheptenylidene derivative represented by the following general formula [I]: ##STR1## wherein X is --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--; R.sub.1 and R.sub.2 are alkyl groups, aralkyl groups, aromatic groups or heterocyclic groups, R.sub.3 and R.sub.4 are hydrogen atoms, alkyl groups, alkoxy groups or halogen atoms; and Ar.sub.1 is an aromatic group or a heterocyclic group, process for producing those derivatives, and electrophotographic photosensitive member using the same.

Abstract: An electrophotographic photosensitive member comprises a photosensitive layer on a conductive support, wherein said photosensitive layer contains a compound, having structures (A) and (B) together in its structural formula and wherein said photosensitive layer contains a thioether compound represented by Formula (VI).

Abstract: A function separated type electrophotographic photosensitive member for infrared rays comprises a combination of a charge generation material and a charge transport material, wherein the electrophotographic photosensitive member for infrared rays contains as the charge generation material a disazo pigment represented by Formula (1).

Abstract: An electrophotographic photosensitive member has a photosensitive layer on an electroconductive support, wherein said photosensitive layer contains a compound represented by the formula: ##STR1## [wherein Ar.sub.1 represents a phenyl group having one or more group selected from alkoxy groups and alkyl groups, Ar.sub.2 represents a phenyl group having one or more group selected from nitro group, cyano group and halogen atoms, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 represnt hydrogen atom, halogen atom, alkyl group, aralkyl group, alkoxy group, nitro group, cyano group, trifluoromethyl group or substituted amino group, with proviso that R.sub.5 and R.sub.6, R.sub.6 and R.sub.7, R.sub.7 and R.sub.8, R.sub.9 and R.sub.10, R.sub.10 and R.sub.11, R.sub.11 and R.sub.12 may form a fused aromatic ring together with a part of the carbazole ring].

Abstract: A photosensitive member for electrophotography comprises a photosensitive layer containing a trisazo pigment represented by the formula: ##STR1## wherein Ar.sub.1 is a pyridylene group capable of having a substituent; Ar.sub.2 and Ar.sub.3 are respectively a pyridylene group or an arylene group each capable of having a substituent; and A is a coupler residue having a phenolic OH group. Because the trisazo pigment has a characteristic central skeleton including the central nitrogen atom and an adjacent pyridylene group, the photosensitive member has a sensitivity region expanded to the near-infrared region and shows a stable charging characteristic during a continuous electrophotographic operation.

Abstract: An electrophotographic photosensitive member which comprises a layer containing a compound represented by the formula (1) shown below: ##STR1## wherein A represents 1,2-, 2,3- or 3,4-benzocarbazolyl group; R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represent hydrogen atom, alkyl group, aralkyl group, aryl group or heterocyclic group, with proviso that R.sub.2 and R.sub.3 cannot be hydrogen atoms at the same time.

Abstract: The invention provides an electrophotographic photosensitive member having an improved sensitivity and an improved potential stability when repeatedly copied by using a photosensitive layer containing a disazo pigment having a specific molecular structure.

Abstract: An electrophotographic photosensitive member comprises a photosensitive layer on a substrate, said photosensitive layer comprising a disazo pigment represented by the formula (1).

Abstract: The present invention includes a method of air-conditioning which forms, in a space to be air-conditioned, a plurality of circulating flows of air respectively blown through air outlets of an air-conditioning system disposed at predetermined positions within this space and which successively repeats two steps: a first step of changing the effective range of at least one of the circulating flows; and a second step of returning that circulating flow or flows as effected in the first step to the effective range thereof which obtained before the first step, and an air-conditioning system for carrying out this method, which forms, in a space to be air-conditioned, a plurality of circulating flows of air respectively blown through air outlets of an air-conditioning system disposed at predetermined positions within the space and which comprises: a means for changing the effective range of at least one of the circulating flows and returning that circulating flow or flows as changed to the effective range thereof whic

Abstract: A photosensitive member for electrophotography comprising a photosensitive layer containing an azo pigment selected from those represented by the following formulas (1)-(6): ##STR1## wherein R is an alkyl, aralkyl, aryl, or acyl each capable of having a substituent; Ar is an arylene or heterocyclic group each capable of having a substituent; Ar is a coupler residue group having a phenolic OH group; B is hydrogen, nitroso, or an alkyl, aralkyl, aryl or acyl group capable of having a substituent; and n is 0 or 1.

Abstract: An electrophotographic photosensitive member comprises a photosensitive layer containing an azo pigment selected from the following general formulae (1) to (5): ##STR1## wherein groups Ar are arylene groups and divalent heterocyclic groups, each of which may contain a substituent; n is 0 or 1; and group A is a coupler residue group having a phenolic OH group.

Abstract: An electrophotographic photosensitive member comprises at least a charge generation layer and a charge transport layer on an electroconductive substrate, wherein said charge generation layer contains, as a binder, a polyvinylacetal resin obtained by acetalization reaction of polyvinyl alcohol and aldehyde compound represented by the following general formula:Ar-CHOwherein Ar stands for a substituted or unsubstituted aryl radical.

Abstract: This invention relates to an electrophotographic photosensitive member utilizing a novel electrophotographic photosensitive material, more particularly to an electrophotographic photosensitive member endowed with high sensitivity as well as excellent potential stability during repeated copying by incorporating an azo pigment having a specific molecular structure in the photosensitive layer.

Abstract: An electrophotographic photosensitive member comprises a photosensitive layer containing an azo pigment selected from the general formulae (1) to (6).

Abstract: An electrophotographic photosensitive member having a conductive substrate and a photosensitive layer, which is characterized in that the photosensitive layer comprises a binder and at least one hydrazone compound represented by the following general formula (1) or (2): ##STR1## In the formula; R.sub.11 and R.sub.12 independently of each other represent alkyl, aralkyl, or phenyl, each substituted or unsubstituted, or R.sub.11 and R.sub.12 form a 5- or 6-membered ring residue conjointly with the nitrogen atom to which they are bonded; R.sub.13 and R.sub.14 independently of each other represent alkyl or alkoxy; R.sub.15 and R.sub.16 independently of each other represent alkyl, aralkyl, or aryl, wherein the aralkyl and the aryl are substituted or unsubstituted; and n represents a integer of 0 or 1. ##STR2## In the formula; R.sub.21 and R.sub.22 independently of each other represent alkyl, aralkyl, or phenyl, each substituted or unsubstituted, or R.sub.21 and R.sub.

Abstract: An electrophotographic photosensitive member is provided which comprises a photosensitive layer containing a photoconductive pigment or dye dried according to freezing vacuum drying dispersed in a binder resin.