Abstract Remoistening apparatus for use in conjunction with paper folding comprises moisture applying members for wetting dry adhesive areas of a sheet prior to the sheet being fed to a machine in which the sheets are folded to provide envelopes or sheets with tear off envelopes attached thereto. The moisture applying members are cyclically operable to receive moisture from a supply and then to transfer the moisture to the dry adhesive areas of the sheet in synchronism with the sheets as they move through the apparatus so as to insure registry of the members with the adhesive areas. The members are on endless belts to facilitate their accurate positioning as well as replacement with different sizes of members for different sizes of dry adhesive areas to be moistened.
Remoistening apparatus for use in conjunction with a paper folding machine, said apparatus comprising: moisture supply means; moisture transfer means including an endless belt and an absorbent transfer member of lesser length than said belt and mounted on said belt to be cyclically operable between a first position in moisture-receptive relationship with said moisture supply means and a second position in moisture-delivery relationship with a selected region of a paper blank; drive means for cycLing said transfer member between said first and second positions; conveyor means for conveying paper blanks in sequential operative association with said moisture transfer member; and control means for operating said drive means in synchronism with moving paper sheets on said conveyor means and including sensor means along the length of said conveyor means to sense the leading edge of a paper blank thereon for initiating operation of said drive means to move the transfer member into moisture-delivery relationship with a selected region of the paper blank, and to sense the leading edge of the moistened paper blank at an advanced position thereof on the conveyor means to initiate stopping of the drive means for the transfer member.
Claim 2
Dependent Claim
192 words
Remoistening apparatus for use in conjunction with a paper folding machine, said apparatus comprising: moisture supply means; moisture transfer means including an endless belt and an absorbent transfer member of lesser length than said belt and mounted on said belt to be cyclically operable between a first position in moisture-receptive relationship with said moisture supply means and a second position in moisture-delivery relationship with a selected region of a paper blank; drive means for cycLing said transfer member between said first and second positions; conveyor means for conveying paper blanks in sequential operative association with said moisture transfer member; and control means for operating said drive means in synchronism with moving paper sheets on said conveyor means and including sensor means along the length of said conveyor means to sense the leading edge of a paper blank thereon for initiating operation of said drive means to move the transfer member into moisture-delivery relationship with a selected region of the paper blank, and to sense the leading edge of the moistened paper blank at an advanced position thereof on the conveyor means to initiate stopping of the drive means for the transfer member.
Claim 3
Dependent Claim
31 words
Apparatus according to claim 1 wherein said drive means further includes a driven shaft, power transmitting means, and selectively actuatable clutch means for connecting said driven shaft and said power-transmitting means.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 2 wherein said apparatus further includes indexing means for stopping said driven shaft upon disconnecting said driven shaft from said power-transmitting means.
Claim 5
Dependent Claim
40 words
Apparatus according to claim 1 wherein said moisture supply means includes reservoir means, a supply roller disposed adjacent said first position, and wherein said first position is spaced generally above said second position whereby to create an accessible free space.
Claim 6
Dependent Claim
35 words
Apparatus according to claim 4 wherein said moisture supply means further includes a metering roller aligned parallel with said supply roller and spaced therefrom to regulate the rate of moisture transmitted to said transfer means.