Abstract: A switching device for the displacement of the brush body holders in brush manufacturing machines during the drilling and stuffing operations in the production of brushes. Necessary displacements can be accomplished simply and accurately for any shapes of brush bodies without requiring any machine modification or readjusting by utilizing a programmable logic control system and hydraulic linear force amplifiers.

Abstract: A handle having a sprung forked end with two branch arms in the form of a fork is releasably securable to a cleaning-implement body by engagement of the branch arms in apertures in the body by means of a clamping device which is movable with respect to said branch arms and includes a pivoting lever.

Abstract: A handle having a sprung forked end is releasably securable to a cleaning-implement body by engagement of the fork arms in apertures in the body by means of a clamping device engaging between said arms and being movable, by rotation, displacement or pivoting, to spread the arms apart or draw them together. Various forms of clamping device (comprising a cam disc and/or a slider, or a pivoting lever), various configurations of fork arms and various features of said body are described.

Abstract: A handle mounting for cleaning implements (brooms, scrubbers, squeegees or the like) comprises a forked connecting member whose fork arms are at one end securable to the head of the cleaning implement and at the other end, interconnected by a crosspiece, are inserted into one end of a tubular metal stem forming the handle or a portion thereof. The connecting member is secured in the stem by deformation of the latter between the two arms of the fork until the tube wall forms two layers, also by welding. The inserted parts of the fork arms, beyond the deformed end of the tube, are bent so as to bear on opposite faces of the tube wall. A cranked arrangement of the outer ends of the fork arms, for engagement with the cleaning implement, are described.