The Nack Company Limited

The Perfectrim Limited Partnership

Edward A Funger

Charles G Shepherd

A utility knife with a rotary blade magazine also has a safety catch carried by the blade transport mechanism. The safety catch has a manually engageable actuator moveable relative to the transport mechanism between operative and non-operative positions to prevent or permit respectively sliding movement of the transport mechanism in the housing. The knife further has an end cap removably and rotatably secured in the housing, and a rotatable and removable ratchet member adjacent a rear end of the magazine, the ratchet member being connected to the magazine whereby rotation of the ratchet member effects rotation of the magazine and having ratchet teeth engageable with ratchet recesses in the housing to enable the ratchet member to be clicked from one position to another. The end cap is connected to the ratchet member whereby rotation of the cap causes rotation of the ratchet member and subsequent rotation of the magazine.

Utility knife with rotary blade magazine

Utility knife

A utility knife has a blade magazine removably mounted in a manually holdable housing and rotatable about an axis parallel to a longitudinal axis of the housing. The blade magazine has a series of radially and longitudinally extending circumferentially spaced blade-receiving slots for separately receiving thin blades having a cutting edge at at least one end thereof, each slot having an open front end to enable a blade therein to be removed from the magazine by forward movement through the front end of the slot. The housing also carries a slidable transport mechanism having a manually engageable actuator projecting from the housing and slidable in a longitudinal direction between front and rear positions, the transport mechanism also having a blade-engaging arm within the housing. Positioning of the actuator at the forward position causes a blade carried by the arm to project from the front end of the housing in an operative position, and movement of the actuator from the forward position to the rear position causes the blade to be retracted from the operative position into the housing and into an empty slot in the magazine. The magazine is rotatable to move the retracted blade from the arm of the transport mechanism and to position a new blade from another slot onto the arm for subsequent movement by the actuator to an operative position.

Utility knife with blade magazine

A cutting blade and a cutting blade holder are described which, when used together provide exceptional stability to the cutting blade. The cutting blade/blade holder assembly is particularly adapted for use in combination with a carpet cutting device for cutting matched seams in wall-to-wall carpet laying installations.

Cutting blade and holder therefor

A device for cutting overlapped carpet sections so as to produce matched seams is disclosed. The device comprises a generally planar base plate having an upper and a lower surface. Two generally planar side plates are provided on the base plate adjacent the respective opposed side edges of the base plate so as to protrude downwardly below the lower surface. A handle having a longitudinal axis is affixed to the upper surface of the base plate between the two side plates with the longitudinal axis in angled relation to the upper surface and in generally parallel relation to the side plates. A cutting blade is rigidly and adjustably affixed to the device between the side plates with its cutting edge in generally parallel relation to the longitudinal axis, the cutting blade protruding sufficiently below the lower surface so as to be positionable in operative cutting relation to the overlapped carpet sections.

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Burlington, Canada

Edward A Funger