Abstract: A level device may include a housing, a vial, a retention well and a multidirectional vial protection assembly. The housing may have a top face, a bottom face, a front face, a rear face, a first end and a second end. The vial may include a generally cylindrical tube with a bulge formed at a middle portion thereof. The vial may contain a liquid therein and an air bubble formed in the liquid such that the air bubble sits in the bulge when the vial is oriented such that one of the bottom face, front face, rear face, first end or second end is level or plumb. The retention well may be formed in the top face and extend through portions of the front and the rear faces toward the bottom face. The vial may be retained at opposing axial ends thereof in the retention well and may include an axis that extends substantially perpendicular to respective planes of the first end and the second end.

Abstract: A jaw crusher service tool for supporting an item during service of a jaw crusher, which has a fixed jaw and a movable jaw mounted in a crusher frame that define a crushing chamber for material to be crushed, is provided. The service tool includes a support frame for supporting the item and a jaw crusher mounting attached to the support frame for mounting the service tool on the jaw crusher. The support frame is movable about first and/or second articulation axes between a transport position and an item supporting position on the jaw crusher.

Abstract: A swing jaw of a jaw crusher includes a cast swing jaw frame and a retention seat for a toggle seat having a first retention seat part. The retention seat includes a detachable retention plate that is configured to couple to the first retention seat part so as to clamp a toggle seat therebetween in a wedged clamping arrangement. The first retention seat part is usually integrally cast with the cast swing jaw frame. The retention seat upon assembly has opposed sidewalls that diverge towards a rear wall of the retention seat to wedge the toggle seat in position in the assembled retention seat. Generally, the first retention seat part has a first sidewall and a rear wall of the retention seat, the detachable retention plate having a second sidewall of the retention seat.

Abstract: A lifting device is configured to be integratable into a jaw crusher for facilitating access to items to be lifted from above during machine servicing. The crusher includes a crusher frame generally made up of oppositely disposed sidewalls and supporting a fixed jaw and a movable jaw defining a crushing chamber for material to be crushed. The lifting device has at least one primary pulley mountable on the jaw crusher above an item to be lifted and configured for lifting a toggle plate for a jaw crusher, wherein the lifting device is configurable to lift the item in a straight lift.

Abstract: A measuring device may include a housing having a front wall and a rear wall operably coupled to each other via a base portion and defining a receiving space between the front wall and the rear wall, a rotatable vial holder disposed in the receiving space and being configured to hold a vial, and a locking assembly having a locked state in which the rotatable vial holder is prevented from rotating relative to the housing. The locking assembly is also configured to enable the rotatable vial holder to be rotated relative to the housing when the locking assembly is in an unlocked state. The rotatable vial holder may be rotatable to a deployed position to define a selected angle between the base portion and the vial, and rotatable to a storage position in which the vial is enclosed inside the receiving space of the housing.

Abstract: A crusher belt tensioning apparatus is arranged for being mounting on a crusher having a driven crusher pulley to actuate a crusher, a drive pulley drivable by a power unit, a belt extending between the crusher pulley and the drive pulley to transfer drive from the power unit to the crusher, and a tension drum mounted on a tension arm for applying a tension force to the belt. The tension arm includes a first relatively short arm portion and a second relatively long arm portion connected to the first relatively short arm portion. The tension drum is movable by a hydraulic cylinder, attached to the relatively short arm portion, between a first belt tensioning operating position in which the tension drum applies tension to the belt and a second belt non-tensioning maintenance position in which the belt is removable from the tensioning apparatus.

Abstract: In one aspect there is provided a jaw crusher including a motor providing a primary power source to a primary hydraulic pump of the jaw crusher, a crusher frame supporting a fixed jaw and a movable jaw defining a crushing chamber therebetween, a cross beam transversely mounted in the crusher frame, a toggle plate extending between the cross beam and the movable jaw, and a hydraulic system having a primary pump line powered by the primary hydraulic pump for moving the movable jaw and clamping the toggle plate. The hydraulic system includes an auxiliary pump powered independently of the primary pump for effecting movement of the movable jaw.

Abstract: A crusher belt tensioning apparatus is arranged for being mounting on a crusher having a driven crusher pulley to actuate a crusher, a drive pulley drivable by a power unit, a belt extending between the crusher pulley and the drive pulley to transfer drive from the power unit to the crusher, and a tension drum mounted on a tension arm for applying a tension force to the belt. The tension arm includes a first relatively short arm portion and a second relatively long arm portion connected to the first relatively short arm portion. The tension drum is movable by a hydraulic cylinder, attached to the relatively short arm portion, between a first belt tensioning operating position in which the tension drum applies tension to the belt and a second belt non-tensioning maintenance position in which the belt is removable from the tensioning apparatus.

Abstract: A level device may include a housing, a vial, a retention well and a multidirectional vial protection assembly. The housing may have a top face, a bottom face, a front face, a rear face, a first end and a second end. The vial may include a generally cylindrical tube with a bulge formed at a middle portion thereof. The vial may contain a liquid therein and an air bubble formed in the liquid such that the air bubble sits in the bulge when the vial is oriented such that one of the bottom face, front face, rear face, first end or second end is level or plumb. The retention well may be formed in the top face and extend through portions of the front and the rear faces toward the bottom face. The vial may be retained at opposing axial ends thereof in the retention well and may include an axis that extends substantially perpendicular to respective planes of the first end and the second end.

Abstract: A measuring tape device may include a housing having an aperture, a reel assembly defining an axis, a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly, and a transverse aperture extending through the housing in a direction substantially parallel to the axis.

Abstract: A level device may include a housing, a vial, a retention well and a multidirectional vial protection assembly. The housing may have a top face, a bottom face, a front face, a rear face, a first end and a second end. The vial may include a generally cylindrical tube with a bulge formed at a middle portion thereof. The vial may contain a liquid therein and an air bubble formed in the liquid such that the air bubble sits in the bulge when the vial is oriented such that one of the bottom face, front face, rear face, first end or second end is level or plumb. The retention well may be formed in the top face and extend through portions of the front and the rear faces toward the bottom face. The vial may be retained at opposing axial ends thereof in the retention well and may include an axis that extends substantially perpendicular to respective planes of the first end and the second end.

Abstract: A measuring device may include a housing having a front wall and a rear wall operably coupled to each other via a base portion and defining a receiving space between the front wall and the rear wall, a rotatable vial holder disposed in the receiving space and being configured to hold a vial, and a locking assembly having a locked state in which the rotatable vial holder is prevented from rotating relative to the housing. The locking assembly is also configured to enable the rotatable vial holder to be rotated relative to the housing when the locking assembly is in an unlocked state. The rotatable vial holder may be rotatable to a deployed position to define a selected angle between the base portion and the vial, and rotatable to a storage position in which the vial is enclosed inside the receiving space of the housing.

Abstract: A measuring tape device may include a housing having an aperture, a reel assembly defining an axis, a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly, and a transverse aperture extending through the housing in a direction substantially parallel to the axis.

Abstract: A measuring tape device may include a housing having an aperture, a reel assembly enclosed within the housing, and a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly. The housing may include a first case half and a second case half. The reel assembly may be configured to alternately allow the blade to be withdrawn from the reel assembly through the aperture or received in the aperture onto the reel assembly. The first case half and the second case half may be joined together via threaded fasteners inserted into respective portions of screw bosses formed in corresponding portions of the first and second case halves. Mating features may be provided on the first and second case halves to facilitate joining the first and second case halves. At least some of the mating features may be longer than others of the mating features, or a diameter of the screw bosses is about 1.5 time to about 2.

Abstract: A measuring tape device may include a housing having an aperture, a reel assembly defining an axis, a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly, a locking assembly configured to alternately allow and prevent winding of the blade onto the reel assembly based on a position of the locking assembly, and a guard assembly comprising guard members extending on opposing lateral sides of the locking assembly to protect the locking assembly from impact.

Abstract: A measuring tape device may include a housing having an aperture, a reel assembly defining an axis, a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly, and a transverse aperture extending through the housing in a direction substantially parallel to the axis.

Abstract: A level device may include a housing, a vial, a retention well and a multidirectional vial protection assembly. The housing may have a top face, a bottom face, a front face, a rear face, a first end and a second end. The vial may include a generally cylindrical tube with a bulge formed at a middle portion thereof. The vial may contain a liquid therein and an air bubble formed in the liquid such that the air bubble sits in the bulge when the vial is oriented such that one of the bottom face, front face, rear face, first end or second end is level or plumb. The retention well may be formed in the top face and extend through portions of the front and the rear faces toward the bottom face. The vial may be retained at opposing axial ends thereof in the retention well and may include an axis that extends substantially perpendicular to respective planes of the first end and the second end.

Abstract: A measuring tape device may include a housing having an aperture, a reel assembly enclosed within the housing, and a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly. The housing may include a first case half and a second case half. The reel assembly may be configured to alternately allow the blade to be withdrawn from the reel assembly through the aperture or received in the aperture onto the reel assembly. The first case half and the second case half may be joined together via threaded fasteners inserted into respective portions of screw bosses formed in corresponding portions of the first and second case halves. Mating features may be provided on the first and second case halves to facilitate joining the first and second case halves. At least some of the mating features may be longer than others of the mating features, or a diameter of the screw bosses is about 1.5 time to about 2.

Abstract: A measuring tape device may include a housing having an aperture, a reel assembly defining an axis, a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly, a locking assembly configured to alternately allow and prevent winding of the blade onto the reel assembly based on a position of the locking assembly, and a guard assembly comprising guard members extending on opposing lateral sides of the locking assembly to protect the locking assembly from impact.