Book copying machine

Claim 2

A book copying machine, comprising a housing having mounted thereon an exposure glass controlled to displace by a driving mechanism, and having set therein a camera system which comprises copying camera and a light source, a carbon powder feeding and image setting device which comprises a toner cartridge, a carbon powder roller and a heat pressure device for image setting, paper turn-over device, and a return delivery device, wherein: said exposure glass comprises a wedge portion transversely made in the middle, said wedge portion being comprised of two opposite slopes projecting upward to divide said exposure glass into two equal parts; said paper turn-over device comprises a reactor, a cam and a roller, said cam having a projecting edge controlled by said reactor to alternatively rotate through 180° angle to a position at the top or bottom; said driving mechanism comprises a V-shaped guide channel having set therein a rack engaged with a driving link through a steering gear, said driving link being comprised of two opposite rods secured to said exposure glass at two opposite ends on its longer side and driven to rotate by a servo motor through the control of a speed regulator so as to drive said exposure glass to displace permitting the length of the projection of said light source on the upward slope on said wedge portion to be equal to the displacement of said exposure glass.

Claim 3

A book copying machine according to claim 1, wherein said wedge portion of said exposure glass is designed in shape according to the curvature of the fold of a book in an opened status.

Claim 4

A book copying machine according to claim 1, wherein said V-shaped guide channel has an inner track determined according to the projection through the upward slope of said wedge portion of said exposure glass.

Claim 5

A book copying machine according to claim 1, which performs a book copying operation according to the procedures of start-end page setting, start page side setting, receiving of blank sheet of paper, paper receiving and registration, paper turn-over, and paper return delivery; wherein: said start-end page setting procedure is to input in a start page counter the data of the page number from which the duplication of a book is to be started and in an end page counter the data of the page number until which the duplication of a book is to be terminated so that book copying operation is automatically stopped as soon as the count in said start page counter exceeds that in said end page counter; said start page side setting procedure is to first define the sequence to copy the book blades clockwise or counter-clockwise and then to set the start page from the first projection plane which is defined on the left half part of said exposure glass at the left side of said wedge portion or from the second projection plane which defined on the right half part of said exposure glass at the right side of said wedge portion; after receipt of a blank sheet of paper, the blank sheet of paper is delivered inside said housing for duplication according to pre-determined page number setting, so as to first copy the second projection plane on the right side of said blank sheet of paper when clockwise sequence is pre-set, and then copy the first and the second projection planes on the opposite side of the sheet of paper after the sheet of paper is turned over and returned for next registration and finally copy the first projection plane on the right side of the sheet of paper on the start page face, and then, according to pre-determined page number setting to repeat the circulation of duplication process until the count in said start page counter exceeds that in said end page counter, and after completely duplicated copies having sent out the duplicated copies are separately folded up and piled up together to form a set of copies arranged in proper sequence; after receipt of a blank sheet of paper, the blank sheet of paper is delivered inside said housing for duplication according to pre-determined page number setting, when counter-clockwise sequence is pre-set, and then copy the first and second projection planes on the left and right sides of the sheet of paper, after the sheet of paper is turned over and returned for next registration, and finally copy the first projection plane on the right side of the paper on the opposite face, and then, to repeat the circulation of duplication process of the clockwise sequence until the count in said start page counter exceeds that in said end page counter, and after completely duplicated copies having been sent out the duplicated copies are separately folded up and piled up together to form a set of copies properly arranged in sequence leaving the first page blank.

Claim 6

A book copying machine according to claim 4, wherein said paper turn-over procedure is to turn the duplicated side of a sheet of paper upward and the opposite side of such a sheet of paper downward.

Claim 7

A book copying machine according to claim 4, wherein said return delivery procedure is to send the sheet of paper which has been turned over to the paper receiving and registration device for next copying circulation operation.