Abstract: The head holder of the instant invention is intended for use on a cattle chute, the chute having a vertically elongate opening at one end thereof allowing passage of the head only of animal restrained in the chute therethrough. The head holder includes a head catch for engaging the head of an animal adjacent to the animal's neck and positioning means for positioning the head catch. The positioning means includes a pivotable mount allowing selective positioning of the catch between a head engaging position and a disengaged position and elevating means for selectively raising and lowering the head catch.

Abstract: A grinding machine for grinding the cutters in left- and right-hand cutter links in saw chain. A pair of grinding wheel assemblies disposed on opposite sides of a saw chain support are actuated in turns to bring the wheels in the assemblies into a cutter link positioned on the saw chain support. Indexing structure positions the saw chain with a cutter link occupying a grinding station while supported on the chain support.

Abstract: A generally horizontal elongated mount is provided having structure on one end for supportive anchoring from one marginal edge portion of a workbench with the other end portion of the mount projecting outwardly of the bench marginal edge portion. A depending support leg is carried by the mount spaced intermediate the opposite ends thereof and the lower end of the leg is adjustably extendible for supportive engagement from a floor surface. A support shaft generally parallels the mount and is supported therefrom for adjustable angular displacement relative thereto about the longitudinal axis of the shaft and the end of the shaft corresponding to the one end of the mount oscillatably supports one end of a swing arm therefrom for angular displacement relative to the shaft about an axis transverse to the swing arm and the shaft and angularly adjustable with the shaft.

Abstract: An upstanding support is provided and a rotary grinding head is journaled from the upper end of the support for rotation about a vertical axis. A horizontally disposed support arm is pivotally mounted from the support at one end portion for swinging about a vertical axis and the other free end portion of the support arm has a grooved support wheel journaled therefrom for rotation about a horizontal axis extending transversely of the support arm. The grooved support wheel may have a saw chain trained thereover and the grooved support wheel, during oscillation of the support arm, is swingable into registry with diametrically opposite side portions of the rotary grinding head. Also, a chain tooth engaging and positioning member is supported from each of the opposite side portions of the support arm adjacent the grooved support wheel and swingable into and out of an operative position.

Abstract: Support structure is provided defining an elongated guide groove for slidingly receiving, guidingly engaging and supporting the guide lugs of an elongated saw chain section for selected positioning of the section along the groove. A tooth locator is provided for engaging and positioning tooth equipped links in a predetermined position along the groove to be similarly engaged and sharpened by a rotary grinding wheel mounted for movement in a predetermined path relative to the support structure. A mount is supported from the support structure and the tooth locator includes an elongated support arm having one end supported from the mount. An elongated finger is provided and pivotally mounted at one end to the other end of the arm for limited angular displacement of the finger relative to the arm about an axis at least closely adjacent and generally paralleling a plane containing the groove and paralleling the direction in which the groove opens.

Abstract: A pair of drive and idle pulleys are journalled from horizontally spaced apart elevated mounting structures and an elongated flexible tension member is trained about the pulleys. An elongated member extends between and is anchored relative to the mounting structures and a wheeled carriage is supported from the support member for rolling therealong. A crank is journalled from the carriage and a rotary friction drive member is journalled from the carriage and rollingly engaged with the support member for rotation relative to the carriage in response to its movement along the support member. One-way drive structure drivingly connects the drive member to the crank and an animal simulating structure is dependingly supported from the carriage and includes at least a first oscillatable body part simulating member. Connecting structure is connected between the crank and the body part simulating member for oscillation of the latter in response to rotation of the crank.

Abstract: A mount is provided and includes structure for supporting a saw chain with a tooth thereof in predetermined position relative to the mount. A support is also provided and a rotary grinding wheel is journaled from the support. Parallelogram linkage structure operatively connects the support end of the mount for relative swinging thereof to bring the periphery of the grinding wheel, and said tooth, into engagement with each other along a path of relative movement extending substantially radially of the wheel and with the axis of rotation of the wheel spaced to one side of a plane in which the tooth is disposed.

Abstract: A support plate is provided and includes a pair of intersecting adjacent side marginal edges disposed at generally 100.degree. to 120.degree. relative to each other and provided with endwise outwardly opening grooves formed therein communicated with each other at adjacent ends. The plate includes a transverse bore formed therethrough whereby the plate may be oscillatably supported from a swingable arm of a saw chain sharpener for movement of the plate toward and away from the rotary grinding wheel of the sharpener. Adjustment structure is supported from the plate for adjustably limiting angular displacement of the plate in one direction relative to the corresponding swing arm. The grooves formed in the plate are provided to guidingly and slidingly receive the guide lugs of an associated saw chain and the plate includes adjustable abutment structure engageable with successive saw chain teeth to limit shifting of an associated saw chain relative to the plate along the grooves.

Abstract: A support is provided and a rotary grinding head is journaled from the support for rotation about a first predetermined axis. A support arm is pivotally mounted at one end from the support for swinging of the support and support arm about a second axis substantially paralleling the first axis and the other free end portion of the support arm includes structure for supporting a saw chain therefrom for successive positioning of the cutting teeth of the chain in predetermined position for sharpening by the grinding wheel. As a result of relative swinging of the support and the support arm, the rotary grinding head is swingable into registry opposite side portions of the supported saw chain. Also, a chain tooth engaging and positioning member is supported from the support arm for establishing the predetermined position of the tooth to be sharpened and is swingable into and out of an operative position.

Abstract: A support is provided from which a drivable rotary grinding wheel is journaled for rotation about a first predetermined axis. A mount is also provided and is supported from the support from guided back and forth shifting relative thereto toward and away from the outer periphery of the grinding wheel along a predetermined path extending at least generally radially of the axis of rotation of the grinding wheel. The support means also supports the mount for limited oscillation of the mount about a second axis generally paralleling the first mentioned axis and the mount includes structure operative to support a length of saw chain therefrom.

Abstract: A first mounting structure is provided and supported atop a support standard. The mounting structure has a motor driven rotary grinding wheel journaled therefrom and a second structure defining a support arm has one end thereof oscillatably supported from the mounting structure for swinging movement of the other end of the support arm about an axis generally paralleling but spaced from the axis of rotation of the grinding wheel. The other end of the support arm includes a mount for supporting a chain saw chain therefrom with a selected tooth of the chain in predetermined indexed position and the support arm is swingable into and out of positions with the selected indexed tooth properly engaged with the periphery of the grinding wheel for sharpening the tooth.

Abstract: A bay window-type of metal enclosure is provided for the opening of a fireplace including a hearth extending outwardly beyond the lower portion of the fireplace opening. The enclosure includes a downwardly opening U-shaped frame for abutting the marginal portions of the front wall of the fireplace surrounding the opening, a horizontally outwardly projecting top wall supported from the upper horizontal portions of the U-shaped frame and a lower partial front wall projecting outwardly from and extending between the lower ends of the legs of the U-shaped frame, the opposite side marginal portions of the top wall and the opposite ends of the partial front wall being inwardly divergent and the outer marginal portion of the top wall and the central portion of the partial front wall generally paralleling the front wall of the fireplace through which the fireplace opens.