Adhesive application mechanism for envelope processing machinery

Claim 1

An apparatus for applying adhesive to the sealing flaps of envlopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, additional manual control means for alternately selectively raising and lowering said adhesive box, means interconnecting said adhesive box and said fluidoperated means, pivoting means for jointly pivoting said fluidoperated means and said adhesive box, and interconnected gears for rotating said roll, a latch member which prevents disengagement of said interconnected gears when said apparatus is operative but permits disengagement of said gears when said apparatus is inoperative thereby permitting said roll and said adhesive box to be pivoted laterally.

Claim 2

An apparatus for applying adhesive to the sealing flaps of envlopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, additional manual control means for alternately selectively raising and lowering said adhesive box, means interconnecting said adhesive box and said fluidoperated means, pivoting means for jointly pivoting said fluidoperated means and said adhesive box, and interconnected gears for rotating said roll, a latch member which prevents disengagement of said interconnected gears when said apparatus is operative but permits disengagement of said gears when said apparatus is inoperative thereby permitting said roll and said adhesive box to be pivoted laterally.

Claim 3

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, means interconnecting said adhesive box and said fluid-operated means, pivoting means for jointly pivoting said fluid-operated means and said adhesive box, and a fixed detent, a catch on the adhesive box structure which engages said detent when said apparatus is in an operative position, and may be manually released from said detent when said fluid-operated means and said adhesive box are jointly pivoted.

Claim 4

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, means interconnecting said adhesive box and said fluid-operated means, pivoting means for jointly pivoting said fluid-operated means and said adhesive box, and a fixed detent, a catch on the adhesive box structure which engages said detent when said apparatus is in an operative position, and may be manually released from said detent when said fluid-operated means and said adhesive box are jointly pivoted.

Claim 6

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, and manual control means for alternately selectively raising and lowering said box, means interconnecting said adhesive box and said fluid operated means, pivoting means for jointly pivoting said fluid operated means and said adhesive box, a plurality of interconnected gears for rotating said roll, a latch member preventing disengagement of said interconnected gears when said apparatus is operative but permitting disengagement of said gears when said apparatus is inoperative, thereby allowing said roll and said adhesive box to be pivoted laterally.

Claim 7

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, and manual control means for alternately selectively raising and lowering said box, means interconnecting said adhesive box and said fluid operated means, pivoting means for jointly pivoting said fluid operated means and said adhesive box, a plurality of interconnected gears for rotating said roll, a latch member preventing disengagement of said interconnected gears when said apparatus is operative but permitting disengagement of said gears when said apparatus is inoperative, thereby allowing said roll and said adhesive box to be pivoted laterally.

Claim 8

An apparatus for applying adhesive to sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, manual control means for alternately selectively raising and lowering said adhesive bOx, means interconnecting said adhesive box and said fluid operated means, pivoting means for jointly pivoting said fluid operated means and said adhesive box, a fixed detent, a catch on the adhesive box structure which engages said detent when said apparatus is in an operative position and may be manually released from said detent when said fluid operated means and said adhesive box are jointly pivoted.

Claim 9

An apparatus for applying adhesive to sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, manual control means for alternately selectively raising and lowering said adhesive bOx, means interconnecting said adhesive box and said fluid operated means, pivoting means for jointly pivoting said fluid operated means and said adhesive box, a fixed detent, a catch on the adhesive box structure which engages said detent when said apparatus is in an operative position and may be manually released from said detent when said fluid operated means and said adhesive box are jointly pivoted.

Claim 10

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, additional manual control means for alternatively selectively raising and lowering said adhesive box, wherein said adhesive box is provided with a lip, means pivoting said adhesive box whereby the lip thereof is at a point in close proximity to said fountain roll, a yieldable member being in engagement with said mounting means for said roll and maintaining said lip in engagement with said roll to a closed position when said roll is inoperative, and when said roll is operative, the viscosity of the adhesive circulating about said roll maintains said lip away from said roll against the pressure of said yieldable member to an open position thereby forming a gap therebetween which is self-closing upon the stopping of the rotation of the roll.

Claim 11

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said box, additional manual control means for alternatively selectively raising and lowering said adhesive box, wherein said adhesive box is provided with a lip, means pivoting said adhesive box whereby the lip thereof is at a point in close proximity to said fountain roll, a yieldable member being in engagement with said mounting means for said roll and maintaining said lip in engagement with said roll to a closed position when said roll is inoperative, and when said roll is operative, the viscosity of the adhesive circulating about said roll maintains said lip away from said roll against the pressure of said yieldable member to an open position thereby forming a gap therebetween which is self-closing upon the stopping of the rotation of the roll.

Claim 15

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said adhesive box, additional manual control means for alternatively selectively raising and lowering said adhesive box, wherein said adhesive box is provided with a single rigid scraper bar lip, means mounting said fountain roll adjacent to said adhesive box, means pivoting said adhesive box whereby said rigid scraper lip thereof is at a point in close proximity to said fountain roll, a spring being in engagement with said mounting means for said roll and maintaining said rigid scraper bar lip in engagement with said roll to a closed position when said roll is inoperative, and when said roll is operative, the viscosity of the adhesive distributed around the entire peripheral surface of said roll maintains said rigid scraper bar lip away from said roll against the pressure of said spring to an open position thereby forming a gap therebetween which is self-closing upon the stopping of rotation of the roll.

Claim 16

An apparatus for applying adhesive to the sealing flaps of envelopes in a line of operation comprising an adhesive box, an adhesive fountain roll rotatably mounted adjacent to said adhesive box, fluid-operated means located remotely from said adhesive box but operatively connected thereto for selectively raising and lowering said adhesive box, additional manual control means for alternatively selectively raising and lowering said adhesive box, wherein said adhesive box is provided with a single rigid scraper bar lip, means mounting said fountain roll adjacent to said adhesive box, means pivoting said adhesive box whereby said rigid scraper lip thereof is at a point in close proximity to said fountain roll, a spring being in engagement with said mounting means for said roll and maintaining said rigid scraper bar lip in engagement with said roll to a closed position when said roll is inoperative, and when said roll is operative, the viscosity of the adhesive distributed around the entire peripheral surface of said roll maintains said rigid scraper bar lip away from said roll against the pressure of said spring to an open position thereby forming a gap therebetween which is self-closing upon the stopping of rotation of the roll.

Claim 17

An apparatus for applying adhesive to the sealing flaps of envelopes comprising an adhesive box provided with a rigid scraper bar lip, an adhesive fountain roll, means mounting said roll adjacent to said adhesive box, means pivoting said adhesive box whereby said rigid scraper bar lip thereof is at a point in close proximity to said fountain roll, a spring being in engagement with said mounting means for said roll and maintaining said rigid scraper bar lip in engagement with said roll to a closed position when said roll is inoperative, and when said roll is operative, the viscosity of the adhesive distributed around the entire peripheral surface of said roll maintains said rigid scraper bar lip Away from said roll against the pressure of said spring to an open position thereby forming a gap therebetween which is self-closing upon the stopping of the rotation of the roll, wherein the adhesive is evenly distributed around the entire peripheral surface of said roll, an adjusting member for presetting the gap between said lip and said roll when said adhesive box is pivoted to a position whereby said lip is adjacent to said roll.

Claim 18

An apparatus for applying adhesive to the sealing flaps of envelopes comprising an adhesive box provided with a rigid scraper bar lip, an adhesive fountain roll, means mounting said roll adjacent to said adhesive box, means pivoting said adhesive box whereby said rigid scraper bar lip thereof is at a point in close proximity to said fountain roll, a spring being in engagement with said mounting means for said roll and maintaining said rigid scraper bar lip in engagement with said roll to a closed position when said roll is inoperative, and when said roll is operative, the viscosity of the adhesive distributed around the entire peripheral surface of said roll maintains said rigid scraper bar lip Away from said roll against the pressure of said spring to an open position thereby forming a gap therebetween which is self-closing upon the stopping of the rotation of the roll, wherein the adhesive is evenly distributed around the entire peripheral surface of said roll, an adjusting member for presetting the gap between said lip and said roll when said adhesive box is pivoted to a position whereby said lip is adjacent to said roll.