A mounting adapter for rotatably mounting a tool holding body having first and second surfaces on at least one spider arm of a motor driven rotatable spider assembly of a surface processing apparatus, said mounting adapter comprising: bearing means supported by said second surface; a first aperture extending centrally through said first and second surfaces; a rubber flex pad having a second aperture in vertical registry with and beneath said first aperture; means supporting said rubber flex pad along its periphery and having a third aperture in vertical registry with and beneath said second aperture; an end plug within said third aperture for closing the second aperture, said end plug supporting said flex pad from beneath said third aperture; said rotatable hub of said bearing means including attachment means in the upper portion thereof for facilitating non rotatable attachment to a mounting means adapted for attachment to said spider arm.

A mounting adapter for rotatably mounting a tool holding body having first and second surfaces on at least one spider arm of a motor driven rotatable spider assembly of a surface processing apparatus, said mounting adapter comprising: bearing means supported by said second surface; a first aperture extending centrally through said first and second surfaces; a rubber flex pad having a second aperture in vertical registry with and beneath said first aperture; means supporting said rubber flex pad along its periphery and having a third aperture in vertical registry with and beneath said second aperture; an end plug within said third aperture for closing the second aperture, said end plug supporting said flex pad from beneath said third aperture; said rotatable hub of said bearing means including attachment means in the upper portion thereof for facilitating non rotatable attachment to a mounting means adapted for attachment to said spider arm.

A mounting adapter including a bearing for rotatably mounting a surface processing tool to a tool holder body. The bearing has a rotatable hub including an attachment in an upper portion thereof for non-rotatable attachment to the tool holder body. The mounting adapter includes a rubber flex pad having a periphery and a first aperture. The mounting adapter includes an element supporting the periphery of the rubber flex pad, the element having a second aperture in vertical registry with and beneath the first aperture. The mounting adapter includes an end plug within the second aperture for closing the first aperture. The end plug supports the flex pad from beneath the second aperture.

A bull float for leveling and finishing concrete made from two different materials is disclosed. In one embodiment, the main wooden base has an insert made from fiberglass. As the bull float is pushed forward, the pole is angled such that the wooden back edge levels and smooths the concrete, then on the return stroke the pole is raised such that the fiberglass front edge finishes the concrete as the bull float is swept back to the concrete worker. This bull float performs the tasks currently requiring three separate bull floats, thereby saving the worker from having to replace and clean two or three separate bull floats. As concrete sets up quickly, the time savings obtained through using just a single bull float results in superior concrete slabs with less effort required of the concrete worker and more time to work the concrete.

A pole is provided for a coating knife provided with a profiled handgrip that is easy, practical, rapid and safe to use. The pole includes a handle and a first fixing part for fixing to the handgrip of the coating knife and having a contact surface of complementary shape to the profile of the handgrip of the coating knife. The pole also includes a distal part that is near the blade of the coating knife in the position of use. A proximal part is provided arranged opposite the distal part. The first fixing part further includes at least two fixing lugs mounted in a pivoting manner on the proximal part of the first fixing part and conformed to be swung over the distal part of the first fixing part.

A system for finishing an interior or exterior drywall surface of a building structure can apply a predetermined formulation of dispensable compound material in liquefied form at a continuous flow with simultaneous surface finishing characteristics while reducing labor intensity and maximizing finish quality to a level 5 standard.

A mounting adapter for rotatably mounting a tool holding body having first and second surfaces on at least one spider arm of a motor driven rotatable spider assembly of a surface processing apparatus, said mounting adapter comprising: bearing means supported by said second surface; a first aperture extending centrally through said first and second surfaces; a rubber flex pad having a second aperture in vertical registry with and beneath said first aperture; means supporting said rubber flex pad along its periphery and having a third aperture in vertical registry with and beneath said second aperture; an end plug within said third aperture for closing the second aperture, said end plug supporting said flex pad from beneath said third aperture; said rotatable hub of said bearing means including attachment means in the upper portion thereof for facilitating non rotatable attachment to a mounting means adapted for attachment to said spider arm.

A concrete trowel is disclosed and includes a frame, a drive assembly including a motor mounted on the frame and a drive hub configured to receive torque from the motor and a rotor rotatable about a rotational axis. The rotor includes a rotor hub coupled for co-rotation with the drive hub, a plurality of rotor arms radially extending from the rotor hub, and a plurality of blades selectively attached on respective rotor arms by a quick-connect mounting system.

A mounting adapter for rotatably mounting a tool holding body having first and second surfaces on at least one spider arm of a motor driven rotatable spider assembly of a surface processing apparatus, said mounting adapter comprising: bearing means supported by said second surface; a first aperture extending centrally through said first and second surfaces; a rubber flex pad having a second aperture in vertical registry with and beneath said first aperture; means supporting said rubber flex pad along its periphery and having a third aperture in vertical registry with and beneath said second aperture; an end plug within said third aperture for closing the second aperture, said end plug supporting said flex pad from beneath said third aperture; said rotatable hub of said bearing means including attachment means in the upper portion thereof for facilitating non rotatable attachment to a mounting means adapted for attachment to said spider arm.

This invention is an improved painting tool structure, consisting of a body and a knife board. The body comprises a grip part and a bottom plate. The grip part protrudes from the upper surface of one end of the bottom plate, whereas a clamping slot with an opening facing downward is disposed between the grip part and the bottom plate. The bottom plate and the clamping slot form an angle of less than 90 degrees. The knife board comprises a blade part and a connecting part, where the connecting part 22 is obliquely extended upward from one end of the blade part to form an angle of less than 90 degrees, and is to be connected to the clamping slot.