Abstract: A trash can has a separable sidewall and a base. The sidewall has an upper end and a lower end spaced from the upper end, both of which are open. A set of slots open at the lower end of the sidewall and extend upward from the lower end into the sidewall with a directional change. The base is adapted to accommodate the sidewall so as to close the lower end of the sidewall. The base has a raised perimeter wall with a set of protections along an inner face that are engageable with the slots in the sidewall. The sidewall is without a constriction in width toward its lower end. The sidewall may increase in diameter from the upper end toward the lower end.

Abstract: A mobile storage apparatus for containers is provided. The apparatus provides a unique support assembly for holding a container. The assembly includes a latch mechanism that allows a clamp of cylinder to be moved from a closed position to an open position which creates clearance around a neck of cylinder to allow it to rotate without falling out of clamp. The other end of apparatus is structurally configured with a release plunger that can be retracted to allow rotation of cylinder along said other end. Rotatable wheels on a user side with a braking mechanism along a handle and a foot ledge allow improved maneuverability and stability.

Abstract: A container transporter systems, vehicle, and methods are disclosed. The container transporter can be automatically or manually controlled allowing for ease of use in moving a coupled container. The container transporter can be used with virtually any container, such as a refuse container. The automatic movement of the container transporter can assist users with time constrains or physical constraints in moving their refuse for pickup.

Abstract: A compound container includes a container body having a side wall and a bottom wall; an interior space defined by the side wall and the end wall; an opening defined by an upper edge of the side wall; and an elongated hand support member having a first attachment section and a second attachment section for attaching the hand support member to a bottom surface of the bottom wall. The hand support member is positioned generally parallel to the opening defined by the upper edge of the side wall.

Abstract: A unique attachment mechanism whereby a base platform of a janitorial cart can be affixed to the underside of a mop bucket by an interconnection mechanism by a simple rolling motion so that it is not necessary to lift a heavy mop bucket filled with water to interconnect the mop bucket and the base platform of a janitorial cart.

Abstract: Bucket cart designed for flooring installations of tile, marble, or wood using mud, thin set mortar, glue or other adhesives and grouting, installers have to lift, move, incline bucket, balance it, shovel adhesive and remove bucket from working sector. Using bucket cart allows installer to shovel adhesive without lifting, inclining and balancing bucket every time. Bucket cart is the dog with four wheels or casters attached to the bottom of the ring. Inner opening holds bucket in the variety of angles and fits most five gallons buckets. Amount of adhesive balances bucket on the cart in steady position.

Abstract: A sidewall panel of a barrel cooler has a sidewall panel body forming a first vertical edge and a second vertical edge. The sidewall panel has a latch arm protruding from the first vertical edge of the sidewall panel body, wherein the latch arm is adapted to cooperatively connect with a latch box of a first adjacent sidewall panel of the barrel cooler. The sidewall panel also has a latch box flush along the second vertical edge of the sidewall panel body, wherein the latch box is adapted to cooperatively connect with a latch arm of a second adjacent sidewall panel of the barrel cooler. The sidewall panel may be included in a system of parts that are adapted to cooperatively couple together to form a barrel cooler. The sidewall panel may also be included in an assembled barrel cooler.

Abstract: An auxiliary rolling system for a rolling bin having a container and a set of bin wheels mounted thereon. The auxiliary rolling system comprises a frame securable to the container of the rolling bin, at least one rotatable auxiliary wheel, and a handle for controlling the auxiliary rolling system. When mounted on the rolling bin, the at least one auxiliary wheel is positioned opposite to the set of bin wheels such that the auxiliary rolling system is movable between a stationary configuration, where movement of the bin is prevented, and a transport configuration where movement of the bin is allowed.

Abstract: A car wash caddy is implemented as a compact cart for storing, transporting, and keeping handy various supplies and equipment for use in a variety of applications. The car wash caddy includes a shelf that holds a wash bucket at a convenient hip-level height. A dry storage locker keeps supplies and equipment clean and dry and is slideably mounted beneath the wash bucket shelf. An elevated shelf includes cup holders and keeps supplies and equipment at hand for convenient access. Open topped storage bins are removably offset-mounted in the rear of the car wash caddy and are configured with vents to enable wet materials such as towels and sponges to drip and air dry. The car wash caddy includes two large rear-mounted wheels and two fixed legs A high-mounted handle gives the user leverage to easily maneuver the caddy to the job site and includes integrated water hose retaining slots.

Abstract: A single handled two-wheeled gimbaled bucket dolly or hand truck is configured to lift, transport and pour the contents of a bucket or container with minimal operator effort. This dolly may use a horizontal “C” shaped frame cross member and two rigid vertical gimbaled columns to support a pivoting bucket or a modular tray or basket. This apparatus allows the bucket to be tilted a 180 degrees on its horizontal axis and to effortlessly dispense its contents and to transport the bucket or tray across uneven terrain.

Abstract: A bucket having a triangular shape wherein three side walls and a floor define a triangular interior volume, the bucket having wheels for facilitating moving the bucket from one location to another location, and there being a storage compartment provided in a sidewall of the bucket for storing signs, such as, for example, wet floor signs.

Abstract: A self-contained janitorial tool caddy is disclosed. The tool caddy has an inner circular element which can be in the shape of a cylinder. This inner circular element fits around the base of a standard commercial trash barrel. The inner circular element has one or more outwardly disposed compartments designed to hold janitorial tools and supplies. The tool caddy has a base, to which wheels are directly attached, allowing the caddy to move freely about, without having to be mounted on a separate wheeled structure. In another embodiment the base extends beyond the diameter of the outer element of the caddy, thereby giving more stability to the entire assembly.

Abstract: A cabinet structure for an infusion system includes a platform, on which the system is mounted, and a shell surrounding an interior space, which contains at least a portion of the system. The shell preferably includes an opening that is sized and oriented to allow a lowering of a radioisotope generator, for the system, into the interior space, and a lifting of the generator out from the interior space. The shell may further include another opening, located at a higher elevation than the aforementioned opening, in order to provide access to a waste bottle of the infusion system.

Abstract: A support device for moving an item on a surface. A main body includes a panel and a sidewall. A handle assembly engages the main body and includes a first transportation mechanism. The support device includes a resistance portion on the main body for engaging a surface and resisting movement of the support device when in a resistive mode. The handle mechanism lowers the first transportation mechanism to engage the surface and disengage the resistance portion from the surface in a transportive mode to encourage movement of the support device and the item supported thereon.

Abstract: A wheeled tool bucket dolly system (Tool Bucket Transport Device) for easily wheel-transporting tools or similar articles from a first location to a second location for use. The system comprises a dolly frame having a handle, a horizontal bucket support, a bucket holder ring, a wheel assembly, and a 5 gallon bucket. The bucket is lowered through the bucket holder ring to rest on a traverse member which is welded to the upper side of the horizontal bucket support. Tools are placed inside the bucket and a user inclines the wheeled tool bucket dolly system via the handle resting all weight on the wheel assembly, and transports tools to a second location for using.

Abstract: A portable transporting carrier for standard size buckets and for standard size propane gas tanks with wheels connected by an axle element and configured to position and support the bucket or the tank on the axle element and with an offset handle positioned over a center of gravity of the bucket or tank to facilitate lifting and carrying of the carrier with supported bucket or tank. The carrier is optionally convertible to a transportable working skid.

Abstract: An auxiliary rolling system for a rolling bin having a container and a set of bin wheels mounted thereon. The auxiliary rolling system comprises a frame securable to the container of the rolling bin, at least one rotatable auxiliary wheel, and a handle for controlling the auxiliary rolling system. When mounted on the rolling bin, the at least one auxiliary wheel is positioned opposite to the set of bin wheels such that the auxiliary rolling system is movable between a stationary configuration, where movement of the bin is prevented, and a transport configuration where movement of the bin is allowed.

Abstract: A new dolly can be used for making either a vacuum cleaner supported by casters or one supported by wheels. Casters can be mounted in sockets in bosses near the dolly perimeter. Alternatively, axle mounts can be fitted over the bosses. Upright walls on the mounts engage corresponding walls on the underside of the dolly, forming spaced supports. An accessory component with molded upright walls is mounted onto the dolly, and its walls engage corresponding walls under the dolly. One fastener seats against one fastener surface on the accessory component, and extends into a hole in that fastener surface, an aligned opening in the corresponding axle mount, and into the dolly.

Abstract: A trash carryall with removable cylinder that includes a wheeled carryall operable independent of a removable cylinder, said cylinder insertable into the carryall and securable therein by means of a first and a second hole disposed within the carryall which superimpose a left and a right hole respectively, said left and right hole disposed within the removable cylinder, to store and transport trash, and other household items common to the yard; which cylinder is removable as preferred to readily access trash and items stored proximal a base of the carryall without upending the device.

Abstract: A refuse and recycling cart assembly includes a U-shaped lower frame to hold a plurality of refuse or yard waste containers with easy turn lockable wheels to provide for maneuvering the cart in tight places, stopping or storing the cart on inclined and slippery surfaces or immobilizing the cart during loading or unloading. A U-shaped upper frame with a low to the ground wide rear opening provides for easy loading of containers into the cart with little lifting required. A U-shaped rear vertical support frame has a removable upper frame to give even more clearance for loading containers into the cart with little lifting. The top of the upper rear vertical support frame is bent to provide a handle with a user gripping strip placed on the handle. Upper and lower U-shaped horizontal supports are cantilevered from the upper vertical support frame to support a pair of recycling bins.

Abstract: A retainer extends across first and second overlapping hinged beams to retain the hinged beams against pivotal movement.

Abstract: An apparatus and method may comprise a platform, a rotatable structure on the platform, an arm associated with the platform, and an interface associated with the arm. The structure may be configured to hold a number of tanks. The arm may be configured to move about a plurality of axes. The interface may be configured to connect to a tank in the number of tanks. The arm may be configured to move the tank about the plurality of axes when the interface is connected to the tank.

Abstract: The invention is a wheeled platform adapted to accommodate at least one five gallon bucket surrounded by a plurality of storage compartments for use by a tradesman such as a drywall installer, tile installer, auto detailer, and the like. The wheeled platform includes a rigid base, having a lower and an upper surface structurally interconnected by a plurality of structural ribs and flanges. The flanges extend upward from the upper surface of the base to define a plurality of compartments which are intended to be used to store materials and tools used by the tradesman in the performance of their work. The platform base and flange arrangement define at least one cylindrical compartment for receiving a five gallon bucket. Four caster wheels are appropriately attached to the lower surface of the base so that the platform can be wheeled from a service vehicle to a specific job site having stored therein, the tradesman's tools, as well as necessary material supplies to perform daily job functions.

Abstract: A bucket stand is described herein. The bucket stand has a body for receiving and supporting cylindrical objects such as paint containers. Within the body is a padding for securing the cylindrical objects, so that when a user lifts the cylindrical object, for example, the paint container's handle, the bucket stand is lifted too. This permits better portability of both objects without having to separate them and carry each individually. Furthermore, the cylindrical object is only temporarily secured within the bucket stand for easy removal of the object when desired. The bucket stand is also able to be further elevated and includes wheels to enable sliding of the stand. Additional padding is utilized to allow various sizes of cylindrical objects to be retained. Some embodiments utilize angled walls, magnets and fasteners to further assist in securing the cylindrical objects within the bucket stand.

Abstract: A unique attachment mechanism whereby a trash can dolly can be affixed to the underside of a mop bucket by an interconnection mechanism by a simple rolling motion so that it is not necessary to lift a heavy mop bucket filled with water to interconnect the mop bucket and the trash can dolly.

Abstract: The cleaning caddy apparatus provides compact portability for cleaning equipment and for a plurality of easily accessed tools, pivoting uprights, a downwardly disposed bucket with dual ringer/holders, front double wheels with pivot and larger rear wheels, and extendable handle. Compact portability and stability of the apparatus is further aided by the uprights and extensions being slightly inward of each of the opposed sides. The outwardly curved arms then enable the trailing axle supports with wheels to be outwardly positioned. The twin ringer/holders provide for dual squeegee insertion, as well as use of more than one mop or any other given tools. The forwardly disposed name plate on the bucket provides for easy recognition for workers, especially in situations wherein a plurality of the apparatus are used.

Abstract: A portable hand cart particularly suited for carrying a welding system is provided. The cart includes a bottom platform carried by a rectangular bottom frame; a back frame extending upward from the bottom frame and including an angled handle; a top platform carried by a rectangular top frame that is somewhat narrower than the bottom frame; a front frame extending upward from the front sides of the bottom frame; two front wheels; two back pneumatic wheels; a lower tank frame extending rearward from the back bottom frame and supporting a tank platform; and an upper tank cradle extending rearward from the back of the top frame. The cart is stable and balanced both in a shop and in the field when loaded with a welding system and with or without a compressed gas cylinder.

Abstract: A collapsible utility cart for holding working materials, such as a five-gallon drywall mud bucket and related drywall tools, is disclosed. The utility cart is expandable from a collapsed configuration to an extended configuration. A base has a plurality of legs that extend downwardly therefrom, each including a rolling means. A plurality of nestable, generally planer shelves each have a central aperture therein and a retaining lip extending upwardly therefrom at least partially around a perimeter thereof. A bucket holder is adapted to hold the five-gallon bucket and has a peripheral wall extending upwardly around a perimeter thereof. A plurality of support poles each have the interlocking means at each end thereof. A handle is included and adapted to interlock with the interlocking means of the top-most support pole, such that the utility cart may be carried thereby, whether the utility cart is in the extended configuration or the collapsed configuration.

Abstract: A 4 wheeled cart for transporting and storing a barrel including a handle permanently attached to the side of the cart. Raising the handle simultaneously raises the wheels off the ground to prevent cart movement. The barrel can be restrained to the cart by locking the handle which extends up and over the cart. The cart can also tilt the barrel off center axis to provide more efficient extraction of liquids with a suction device.

Abstract: A wheeled chassis assembly for a sorption column in the form of a vat (1) for cleaning waste gases has at the bottom end thereof a depending foot rim (5) and an outwardly projecting corrugation (4). Wheel mounts (14) with wheels (7) thereon are pivotally secured to wheel brackets (6). Each wheel bracket (6) has an engagement surface (16) pressed onto the outside surface of vat (1) between foot rim (5) and corrugation (4) by a counter-piece (17) engaging the inside surface of foot rim (5) and threadingly coupled to wheel bracket (6). Engagement surfaces (16 and 18) are curved to conform with the outside surface of vat (1) and the inside surface of foot rim (5), respectively. Below an engagement surface (16), a wheel bracket (6) has an annular groove (19) for receiving a foot rim (5), its upper area having an inclined curved portion (21) for engaging the corrugation (4) and shaped to conform with the configuration thereof.

Abstract: A device used in beach-entry scuba dives that both assists the diver to transport scuba tanks and other diving gear to and across the shoreline, and then accompanies the diver and gear underwater. The device holds at least one scuba tank and associated gear such as a buoyancy compensator (BCD), and has a pair of wheels whose rolling position enables the loaded device to be easily transported over natural terrains. Upon reaching or while in the water the wheels may be shifted from the “rolling position” into a streamlined, free-swim position. The means attaching the scuba gear and the scuba tank are easily operated to let the user now don both scuba tank and gear and start their dive, taking the device along for the return cross-shore trip.

Abstract: A garbage can caddy that can store a number of cans within the caddy. The caddy has preferably a bar shaped frame with a bottom surface and has wheels below serving as a dolly for transporting the cans within the caddy. Flip bars are provided to lock the cans in place or to release them from the caddy structure. A canopy can be attached to the caddy and the flip bar to cover the can tops. The canopy can be made of canvas or any other suitable material. The canopy can be attached to the flip bar and close or open with the rotational movement of the flip bar in one of the two rotational directions of the flip bar with respect to the dolly of the caddy.

Abstract: A mop bucket cart that allows a mop bucket to be used on a relatively flat surface and allows a user to traverse one or more stairs with a mop bucket containing fluid by maintaining the bucket in a level position as the mop bucket cart is inclined to traverse one or more stairs.

Abstract: A powder spraycoating cart comprising two lateral posts fitted at their upper ends with a grip system and connected to each other by a control implement bin, said posts being connected at their lower ends by a base designed to support any one of several different powder containers.

Abstract: The trash can cart apparatus provides a frame which selectively encloses two separate trash cans, allowing a user to use different sizes of trash cans, selectively. Each individually pivoted keeper is u-shaped and selectively covers each can. Each keeper further comprises a screen to prevent access to trash can lids, especially by animals, each keeper positionably lockable, and requiring the latch mechanism to be manually released prior to pivot. Each can if fully secured by frame and keepers only. The multiple lower laterals provide that any can is supported by at least two laterals. The apparatus needs only two wheels. The wheels are positioned at the lower front and the pivoting handle at the upper front. A user need only grasp the handle to pivot the mass of the apparatus, along with any trash cans.

Abstract: A mobile garden tool center is provided. The mobile garden tool center comprises a transport cart having a support frame, upper support arms secured to and extending from the support frame, lower support arms secured to and extending from the support frame, a pair of wheels are rotatably secured to the lower support arms, and a carrying platform is attached to the support frame opposite the lower support arms. A barrel is restable on the carrying platform and is releasably secured to support frame of the cart with at least one strap. At least one tube is secured to the support frame of the cart. A basket is releasably attached between the upper support arms. A compactable stool is pivotally connected to the lower support arms.

Abstract: A drywall bucket and tool carrying cart has a main body with an interior space and open top to receive and retain a drywall compound bucket and five legs extending downwardly and outwardly from the perimeter of the body of the cart. Lockable rollers extend from the bottoms of the legs. A shelf attaches to the legs below the body of the cart. A slotted rim for tools with at least one handle surrounds the upper perimeter of the cart.

Abstract: The present invention features a garbage caddy comprising (a) a four-sided enclosure formed by a first side, a second side, a third side, and a fourth side, (b) a base disposed within the enclosure and attached thereto, the base having a top side and a bottom side, and (c) a first wheel removably and rotatably mounted to a side of the first side, and a second wheel removably and rotatably mounted to a side of the third side. The first side and third side extend downwardly from the bottom side of the base to form a set of skis. The top side of the base has at least one slot 118a for snugly holding a trash receptacle 200.

Abstract: An improved multi-modular waste container formed at least in part from molded structural-foam. Per conventional waste containers, the improved waste container includes a housing for receiving trash, which will preferably be disposed upon one or more casters. One or more lids are hingeingly engaged to the top perimeter of the housing to provided selective access to the trash receptacle. Detachably fastenable slots may be affixed to opposed sides of the housing to facilitate engagement with and emptying by front-loading garbage trucks. The improved waste containers are substantially lighter, easier to maintain, stronger, chemical and corrosion resistant and possess substantially greater sound deadening characteristics than prior art waste containers fabricated from metal. The container housings are further preferably configured to be stacked within one another to facilitate shipping and handling thereof.

Abstract: A system for locking the wheels of a dolly for a cleaning device has a brake arm that has one end that is hinged to the base of the dolly. The brake arm pivots between a disengaged position and an engaged position where a stop on an opposite end of the brake arm engages the circumference of one of the wheels on the dolly. A spring biases the brake arm to the disengaged position. The spring can be mounted on a pin that is seated on the base and extends through a slot in the brake arm. An operator-engagable lever is used to move the brake arm from one position to another. The lever can be hinged to the pin, pivoting into and out of a locked position in which the lever presses the brake arm into the engaged position. A cam surface on the lever is shaped so that moving the lever to one side of a critical point causes the lever to be biased toward the locked position, and moving the lever to the other side of the critical point causes the lever to be biased toward the unlocked position.

Abstract: A travel cooler includes a wheeled platform and an insulated container configured to be selectively coupled to, and uncoupled from, the wheeled platform. The wheeled platform includes a base, a plurality of wheels mounted to the base for rolling movement of the platform and a first coupling component fixedly disposed on the base. The insulated container includes a second coupling component fixedly disposed on the container. The first and second coupling components are disengaged from one another when the insulated container is uncoupled from the wheeled platform. The first and second coupling components are disposed in interlocking engagement when the insulated container is coupled to the wheeled platform, whereby the insulated container is securely coupled to the wheeled platform in fixed disposition relative thereto for safe transportation on the wheeled platform.

Abstract: The invention is a combination mobile tool caddy and seat for performing work adapted for use by a tradesman such as an electrician, plumber, carpenter and the like. The wheeled mobile caddy includes a rigid frame having a lower and an upper support member vertically separated by upright corner members. The lower support member extends beyond the upper support member to form a platform area upon which a cylindrical vessel or bucket can be stored. The bucket is equipped with a liner having pockets for storing hand tools. Four caster wheels are appropriately attached to the lower support member so that the caddy can be wheeled from a service vehicle to a specific job site having stored therein the tradesman's tools, as well as necessary material supplies to perform daily job functions.

Abstract: The present invention is an apparatus that is portable, easy to transport, and protects confections during Halloween “trick-or-treat”. The apparatus of the present invention includes a container element including a cover element, wherein the container element and cover element are in the form of a Halloween object, such as a pumpkin, witch, ghost, goblin, monster, vampire or werewolf. The apparatus further includes a projection element, which may further include a gripping element, to assist in maneuvering to push and/or pull the apparatus, via a rotating element. An alternate embodiment of the present invention is contemplated that includes a frame element to allow the container element to be disengaged from the frame element such that the container can be used as a decorative piece, for example displayed on a front porch or kitchen counter.

Abstract: A cart is described for use in transporting and loading kayaks and similar watercraft. The cart includes first and second side frame members having forward and rear ends; a support member extending between the frame members adjacent the frame member rear ends; a bracing member extending between the frame members adjacent the frame member forward ends; a wheel assembly adjacent the rear ends of the frame members, the assembly including first and second axle ends and wheels carried on the axle ends; and an anti-reverse braking means preventing rearward movement of the cart upon tilting of the cart upward. The braking means may include a first component attached to a frame member and a second component attached to a rotatable component of the wheel assembly, the first and second components being moved into locking engagement upon upward tilting of the cart.

Abstract: A portable cart with a noncombustible heat and fire resistant panel of calcium silicate for separating compressed oxygen cylinders from compressed fuel gas cylinders where the calcium silicate panel has a fire resistance rating greater than one half hour and spans the entire height and width between adjacent oxygen and fuel gas cylinders.

Abstract: The invention is a multi-function mobile stool that attaches includes a bucket with a seat attached via a lanyard. The invention includes a wheeled base that includes a rotating storage container that surrounds the location where the bucket is situated upon the base. The bucket may be removed and carried off via a handle. The cushion may be removed from the top of the bucket and allowed to dangle to the side via the lanyard.

Abstract: The present invention is an apparatus that is portable, easy to transport, and protects confections during Halloween “trick-or-treat”. The apparatus of the present invention includes a container element including a cover element, wherein the container element and cover element are in the form of a Halloween object, such as a pumpkin, witch, ghost, goblin, monster, vampire or werewolf. The apparatus further includes a projection element, which may further include a gripping element, to assist in maneuvering to push and/or pull the apparatus, via a rotating element. An alternate embodiment of the present invention is contemplated that includes a frame element to allow the container element to be disengaged from the frame element such that the container can be used as a decorative piece, for example displayed on a front porch or kitchen counter.

Abstract: A scuba tank mobility device and a system comprise a cup member that may be fitted directly over the scuba tank or over a scuba tank boot. A roller member is mounted to rotate with respect to the cup member and positioned vertically with respect to bottom of the cup member so that the roller permits standing support of the scuba tank. The tank is tilted from the standing position to place weight on the roller member for transport. The cup member comprises a projection radially outside its diameter to limit rolling of the scuba tank when on its side. In a further form, a handle may be attached to the cup member and extend axially therefrom. The cup member and handle are dimensioned to provide minimal projection from the contour of the scuba tank, whereby potential for a tangling with underwater vegetation and other objects is minimized.

Abstract: A wheeled chassis assembly for a sorption column in the form of a vat (1) for cleaning waste gases has at the bottom end thereof a depending foot rim (5) and an outwardly projecting corrugation (4). Wheel mounts (14) with wheels (7) thereon are pivotally secured to wheel brackets (6). Each wheel bracket (6) has an engagement surface (16) pressed onto the outside surface of vat (1) between foot rim (5) and corrugation (4) by means of a counter-piece (17) engaging the inside surface of foot rim (5) and threadingly coupled to wheel bracket (6). Engagement surfaces (16 and 18) are formed to be curved to conform with the outside surface of vat (1) or the inside surface of foot rim (5), respectively. Below engagement surface (16), wheel bracket (6) has therein an annular groove (19) for the reception of foot rim (5); its upper area has an inclined curved portion (21) for engaging corrugation (4) and shaped to conform with the configuration thereof.

Abstract: A system for locking the wheels of a dolly for a cleaning device has a brake arm that has one end that is hinged to the base of the dolly. The brake arm pivots between a disengaged position and an engaged position where a stop on an opposite end of the brake arm engages the circumference of one of the wheels on the dolly. A spring biases the brake arm to the disengaged position. The spring can be mounted on a pin that is seated on the base and extends through a slot in the brake arm. An operator-engagable lever is used to move the brake arm from one position to another. The lever can be hinged to the pin, pivoting into and out of a locked position in which the lever presses the brake arm into the engaged position. A cam surface on the lever is shaped so that moving the lever to one side of a critical point causes the lever to be biased toward the locked position, and moving the lever to the other side of the critical point causes the lever to be biased toward the unlocked position.