# US 11,298,848 B1 · Bulk roll cutting apparatus with safety linkage and related methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,848 B1 - Document ID: US11298848B1 - Status: Granted - Kind: B1 - Application number: 16/696,367 - Filed: 2019-11-26 - Granted: 2022-04-12 - Earliest claimed: 2019-01-22 - Assignees: Core Stripper, Inc. - Applicants: Core Stripper, Inc. - Inventors: Eugene Clark; Jonathan Mann; Scott Davis - Web page: https://patentgrep.com/patent/US11298848B1 ## CPC - B26D 7/22: Safety devices specially adapted for cutting machines (safety devices in general F16P) - B26D 1/08: of the guillotine type - B26D 5/04: by fluid pressure - B26D 7/2628: {Means for adjusting the position of the cutting member} - B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04) ## Abstract A bulk roll cutting apparatus with a safety linkage is used to prevent inadvertent gravitational falls of a blade. The apparatus has a frame holding the blade, the blade is movable between a cutting position and a retracted position. In the cutting position, the blade is positioned proximate to an arbor. At least one link arm is movably connected to the frame. An actuator connects between the at least one link arm and the blade. An adjustment device connects between the at least one link arm and the frame. The adjustment device controls a cutting depth of the blade relative to the arbor. A safety linkage connects between the at least one link arm and the frame, and the safety linkage prevents an inadvertent gravitational fall of the blade. ## Claims ### Claim 1 A bulk roll cutting apparatus with a safety linkage, the apparatus comprising: a frame; at least one swing arm having one end connected to the frame and another end connected to a swing blade, wherein the swing blade is movable between a cutting position and a retracted position, wherein in the cutting position, the swing blade is positioned proximate to an arbor; at least one link arm movably connected to the frame at a proximate end of the at least one link arm, wherein the at least one link arm is positioned above the at least one swing arm; an actuator having one end connected to the at least one link arm and another end connected to the swing blade; an adjustment device connected to a distal end of the at least one link arm and the frame, the adjustment device controlling a height of the distal end of the at least one link arm, thereby controlling a cutting depth of the swing blade relative to the arbor; and the safety linkage connected to the distal end of at least one link arm and the frame, the safety linkage preventing an inadvertent gravitational fall of the swing blade, wherein the safety linkage comprises first and second linkage members connected with a pivotal connection therebetween. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the safety linkage and the adjustment device are connected to the at least one link arm at the same location on the at least one link arm. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the safety linkage and adjustment device are connected to the frame at the same location on the frame. ### Claim 4 (depends on 1) The apparatus of claim 1, further comprising a mechanical stop positioned on at least one of the first or second linkage members, wherein the mechanical stop prevents the first and second linkage members from moving beyond an aligned or coaxial position. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the pivotal connection is positioned between the mechanical stop and a connection point where the safety linkage connects to the at least one link arm or the frame. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the safety linkage is connected to the frame through a shaft, wherein the shaft is positioned between two opposing frame walls. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the at least one link arm is movably connected to the frame at a first end of the at least one link arm, wherein the actuator is connected to the at least one link arm at a middle portion of the at least one link arm, and wherein the adjustment device and the safety linkage are connected to the at least one link arm at a second end of the at least one link arm, wherein the middle portion is positioned between the first and second ends. ### Claim 8 An apparatus for removing bulk rolled material from a core, the apparatus comprising: a frame having two frame walls, the frame supporting a swing blade movable between a cutting position and a retracted position, wherein in the cutting position, the blade is positioned proximate to an arbor capable of holding a bulk roll; at least one link arm movably connected to the frame through a first shaft extending between the two frame walls, whereby the at least one link arm is positioned at least partially in a space formed between the two frame walls; an actuator having one end connected to the at least one link arm and another end connected to the blade, the actuator at least partially positioned in the space formed between the two frame walls; an adjustment device connected to the at least one link arm and the frame through a second shaft, the adjustment device being adjustable to control a cutting depth of the blade relative to the arbor; and a safety linkage connected to the at least one link arm and the frame through the second shaft, the safety linkage preventing an inadvertent gravitational fall of the blade, wherein the safety linkage comprises first and second linkage members connected with a pivotal connection therebetween. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the safety linkage and the adjustment device are connected to the at least one link arm at the same location on the at least one link arm. ### Claim 10 (depends on 9) The apparatus of claim 9, further comprising a mechanical stop positioned on at least one of the first or second linkage members, wherein the mechanical stop prevents the first and second linkage members from moving beyond an aligned or coaxial position. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the pivotal connection is positioned between the mechanical stop and a connection point where the safety linkage connects to the at least one link arm or the second shaft. ### Claim 12 (depends on 8) The apparatus of claim 8, wherein the at least one link arm is movably connected to the first shaft at a first end of the at least link arm, wherein the actuator is connected to the at least one link arm at a middle portion of the at least one link arm, and wherein the adjustment device and the safety linkage are connected to the at least one link arm at a second end of the at least one link arm, wherein the middle portion is positioned between the first and second ends.