# US 5,350,170 A · Roller gap setting system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,350,170 A - Document ID: US5350170A - Status: Granted - Kind: A - Application number: 08/095,692 - Filed: 1993-07-21 - Granted: 1994-09-27 - Earliest claimed: 1993-07-21 - Inventors: Jon Emigh; Motaz Qutub - Web page: https://patentgrep.com/patent/US5350170A ## CPC - B65H 45/14: Buckling folders - B65H 5/062: {between rollers or balls} - B65H 2511/22: Distance - B65H 2511/224: Nip between rollers, between belts or between rollers and belts - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES ## Abstract For use in transporting a packet containing from one to a plurality of pages, a dynamic roller positioning system for adjusting a packet receiving gap between two rollers. Comprising the system is a pair of rollers with each roller having a packet contacting surface and the packet receiving gap separating the surfaces, gap setting actuators for setting the paired rollers by steps to a selected gap dimension, and a control system for setting the actuators for the number of pages in each packet. ## Claims ### Claim 1 For use in transporting a packet containing from one to a plurality of pages, a dynamic roller positioning system for adjusting a packet receiving gap between two packet transporting rollers, comprising: a) a pair of rollers with each roller having a packet contacting surface and the packet receiving gap separating said surfaces; b) gap setting means for setting by steps said paired rollers to a selected gap dimension; c) control means for actuating said gap setting means for each packet; and d) a database utilized by said control means, whereby said control means utilizes a page count for each packet found in said database to signal said gap setting means to produce an appropriate gap dimension to receive that said packet. ### Claim 2 (depends on 1) A dynamic roller positioning system according to claim 1, wherein said pair of rollers comprises a first roller with a fixed position for rotation and a second roller with a variable position for rotation, wherein when said second rollers position of rotation varies said gap dimension varies. ### Claim 3 (depends on 2) A dynamic roller positioning system according to claim 2, wherein said gap setting means comprises: a) a reference base for aligning said gap setting means; b) an adjustment lever with first and second ends and a pivot attachment point, wherein said adjustment lever is pivotally secured to said reference base at said pivot attachment point; c) a linkage between said adjustment lever second end and said second roller, whereby when said adjustment lever pivots on said reference base said gap dimensions are set by said steps; and d) means for positioning said adjustment lever to set said gap dimensions as instructed by said control means. ### Claim 4 (depends on 3) A dynamic roller positioning system according to claim 3, wherein said linkage is slidably mounted in said reference base. ### Claim 5 (depends on 3) A dynamic roller positioning system according to claim 3, wherein said adjustment lever positioning means comprises: a) means for setting said adjustment lever to a stop position against said reference base and b) actuator means for pivoting said adjustment lever to set said gap dimensions by said steps as instructed by said control means. ### Claim 6 (depends on 5) A dynamic roller positioning system according to claim 5, wherein said actuator means comprises a plurality of actuators secured to said reference base and positioned to exert pivoting forces on said adjustment lever proximate said adjustment lever first end. ### Claim 7 (depends on 5) A dynamic roller positioning system according to claim 5, wherein said actuator means comprises first and second actuators secured to said reference base, wherein when both said first and second actuators are inactive said adjustment lever is positioned in a first gap setting step of said rollers, when said first actuator is active said adjustment lever is pivoted to generate a second gap setting step of said rollers, and when said second actuator is active said adjustment lever is pivoted to generate a third gap setting step of said rollers. ### Claim 8 (depends on 5) A dynamic roller positioning system according to claim 5, wherein said means for setting said adjustment lever to a stop position against said reference base comprises a lockable screw mounted in said adjustable lever proximate said adjustable lever first end. ### Claim 9 For use in transporting a packet containing from one to a plurality of pages, a dynamic roller positioning system for adjusting a packet receiving gap between two packet transporting rollers, comprising: a) a housing; b) a first roller mounted in said housing with a fixed position for rotation and having an outer packet contacting surface; c) a second roller mounted in said housing with a variable position for rotation and having an outer packet contacting surface and a central axle with first and second ends, wherein a gap with variable dimensions separates said first and second roller outer packet contacting surfaces; d) gap setting means for setting by steps said first and second rollers to a selected gap dimension; e) control means for actuating said gap setting means for each packet; and f) a database utilized by said control means, whereby said control means utilizes a page count for each packet found in said database to signal said gap setting means to produce an appropriate gap dimension to receive that said packet. ### Claim 10 (depends on 9) A dynamic roller positioning system according to claim 9, wherein said gap setting means comprises: a) a reference base for aligning said gap setting means; b) an adjustment lever with first and second ends and a pivot attachment point, wherein said adjustment lever is pivotally secured to said reference base at said pivot attachment point; c) a linkage between said adjustment lever second end and said second roller, whereby when said adjustment lever pivots on said reference base said gap dimensions are set; and d) means for positioning said adjustment lever to set said gap dimensions as instructed by said control means. ### Claim 11 (depends on 10) A dynamic roller positioning system according to claim 10, wherein said linkage is rigid and slidably mounted in said reference base. ### Claim 12 (depends on 10) A dynamic roller positioning system according to claim 10, wherein said adjustment lever positioning means comprises: a) means for setting said adjustment lever to a stop position against said reference base and b) actuator means for pivoting said adjustment lever to set said gap dimensions by said steps as instructed by said control means. ### Claim 13 (depends on 12) A dynamic roller positioning system according to claim 12, wherein said actuator means comprises a plurality of actuators secured to said reference base and positioned to exert pivoting forces on said adjustment lever proximate said adjustment lever first end. ### Claim 14 (depends on 12) A dynamic roller positioning system according to claim 12, wherein said actuator means comprises first and second actuators secured to said reference base, wherein when both said first and second actuators are inactive said adjustment lever is positioned in a first gap setting step of said rollers, when said first actuator is active said adjustment lever is pivoted to generate a second gap setting step of said rollers, and when said second actuator is active said adjustment lever is pivoted to generate a third gap setting step of said rollers. ### Claim 15 (depends on 12) A dynamic roller positioning system according to claim 12, wherein said means for setting said adjustment lever to a stop position against said reference base comprises a lockable screw mounted in said adjustable lever proximate said adjustable lever first end. ### Claim 16 For use in transporting a packet containing from one to a plurality of pages, a dynamic roller positioning system for adjusting a packet receiving gap between two packet transporting rollers, comprising: a) a housing; b) a first roller mounted in said housing with a fixed position for rotation and having an outer packet contacting surface; c) a second roller mounted in said housing with a variable position for rotation and having an outer packet contacting surface and a central axle with first and second ends, wherein a gap with variable dimensions separates said first and second roller outer packet contacting surfaces; d) gap setting means for setting said first and second rollers to a selected gap dimension, wherein said gap setting means comprises: a reference base for aligning said gap setting means; an adjustment lever with first and second ends and a pivot attachment point, wherein said adjustment lever is pivotally secured to said reference base at said pivot attachment point; a rigid linkage between said adjustment lever second end and said second roller, whereby when said adjustment lever pivots on said reference base said gap dimensions are set; and means for positioning said adjustment lever to set said gap dimensions as instructed by a computer control means; e) said computer control means actuating said gap setting means for each packet; and f) a database utilized by said computer control means, whereby said computer control means utilizes a page count for each packet found in said database to signal said flap setting means to produce an appropriate gap dimension to receive that said packet. ### Claim 17 (depends on 16) A dynamic roller positioning system according to claim 16, wherein said adjustment lever positioning means comprises: a) means for setting said adjustment lever to a stop position against said reference base and b) actuator means for pivoting said adjustment lever to set said gap dimensions as instructed by said control means. ### Claim 18 (depends on 17) A dynamic roller positioning system according to claim 17, wherein said actuator means comprises a plurality of actuators secured to said reference base and positioned to exert pivoting forces on said adjustment lever proximate said adjustment lever first end. ### Claim 19 (depends on 17) A dynamic roller positioning system according to claim 17, wherein said actuator means comprises first and second actuators secured to said reference base, wherein when both said first and second actuators are inactive said adjustment lever is positioned in a first gap setting of said rollers, when said first actuator is active said adjustment lever is pivoted to generate a second gap setting of said rollers, and when said second actuator is active said adjustment lever is pivoted to generate a third gap setting of said rollers.