Abstract:
A fixed clamp and shear member is provided in a combination clamping, sealer and shearing device with a strap guide opening extending through the clamp and shear member adjacent a free end of that member serving as an abutment face which cooperates with a movable clamp for clamping a leading end of strap trained from a strap supply through the strap guide opening and into a loop about an article to be bound. A movable shear member is mounted for sliding movement on the fixed clamp and shear member and is reciprocable between a retracted position, wherein the strap guide opening is exposed for strap feeding and tensioning, and an extended position wherein the movable shear is in lapping relation to the strap guide opening of the fixed shear and clamping member to effect strap shearing. The movable clamp in its operative clamping position serves as a stop for the movable shear and establishes a seal pressing position for the movable shear intermediate its retracted and extended positions wherein the movable shear presses opposed heated strap surfaces into a fused seal after withdrawal of a pivotably supported heating element from between the strap surfaces and before the movable clamp is released to permit final movement of the shear member into its extended position to shear the strap in the strap guide opening from the strap supply.
Abstract:
A fixed clamp and shear member is provided in a combination clamping, sealer and shearing device with a strap guide opening extending through the clamp and shear member adjacent a free end of that member serving as an abutment face which cooperates with a movable clamp for clamping a leading end of strap trained from a strap supply through the strap guide opening and into a loop about an article to be bound. A movable shear member is mounted for sliding movement on the fixed clamp and shear member and is reciprocable between a retracted position, wherein the strap guide opening is exposed for strap feeding and tensioning, and an extended position wherein the movable shear is in lapping relation to the strap guide opening of the fixed shear and clamping member to effect strap shearing. The movable clamp in its operative clamping position serves as a stop for the movable shear and establishes a seal pressing position for the movable shear intermediate its retracted and extended positions wherein the movable shear presses opposed heated strap surfaces into a fused seal after withdrawal of a pivotably supported heating element from between the strap surfaces and before the movable clamp is released to permit final movement of the shear member into its extended position to shear the strap in the strap guide opening from the strap supply.
Abstract:
A NESTABLE MAGAZINE SEAL BLANK INCLUDES IN ITS FLANGES INTERLOCKS COMPRISED OF AN APERTURE AND AN INWARDLY DEPRESSED BOSS FACILITATING BOTH EMBRACEABLE RETENTION BETWEEN SEAL BLANKS WITHIN A STACK AND ENDWISE SEPARATION OF THE BLANKS.