referring to the drawings , and especially to fig1 the machine for surface working of wood workpieces is constructed of a working head 1 with a front circular plate 3 and a toothed rim 4 , a rotor 2 , a guiding plate 5 , a fixed axis 8 , a brake disc 10 with a mechanical brake 11 , as well as an entry plate 15 and an exit plate 16 . these elements are present in both the first embodiment of fig1 as well as in the second embodiment with fig2 . in both embodiments the working head 1 is placed into the opening between the vertical movable entry plate 15 and the fixed exit plate 16 . in the first embodiment , presented in fig1 the working head 1 is made up of a vertically placed hollow rotor 2 , which has at one of its ends a circular plate 3 with a toothed rim 4 and an unmarked hole in the middle . the toothed rim 4 is fixed by fixing elements 17 . at the other end of the rotor 2 is a brake disc 10 with a mechanical brake 11 . the brake disc is fixed by fixing elements 12 . the front circular plate 3 is set out onto a specially worked out bed on the outer rim of the hollow rotor 2 through an unmarked hole in the middle in a way that by the toothed rim 4 or the cutting units 19 respectively , it is turned to the plates 15 and 16 . on the side of the cutting units 19 there is a circular deepening , recess or depression 20 carried out , or formed into , into the circular plate 3 front surface . into , or through , the rotor 2 respectively the fixed axis or shaft 8 is placed in a way that on the side of the front circular plate 3 with a hub 52 it is put on its front surface over an intermediate sealing ring 53 , and on the side of the brake disc 10 it reaches a bit outside the rotor 2 . on the axis or shaft 8 there is a hub 52 with a front surface . an intermediate small spacing plate 6 is placed on the front surface of hub 52 . the guiding plate 5 of a circular form is placed and fixed by fixing elements 7 through spacing plate 6 in three points to the fixed axis 8 , as well as to two side guiding laths , not shown . the small spacing plate 6 has a wedge structured transverse section , and is inserted into an unmarked depressed bed on the guiding plate 5 dorsal side . between the outer circumference of the fixed axis or shaft 8 and the circumference of the hole through the rotor 2 there are inserted roller bearings 9 in a tight fit in such a way that the rotor 2 represents their housing . the fixed axis 8 exit part or end is fixed and steadily clamped to the machine housing 14 on the fixed brake disc 10 side by an intermediate clamping bush 13 . the fixed or static coupling of the first priority embodiment with fig1 is constructed of a fixed axis 8 with a guiding plate 5 and a small spacing plate 6 , both of them fixed to one end of the hub 52 and with the clamping box 13 , in the housing 14 , at its other end . the rotating coupling of the embodiment with fig1 is constructed of a rotor 2 with the front circular plate 3 and a toothed rim 4 at one end , and a brake disc 10 at the other end . the rotating coupling is driven by an undescribed and not shown driving unit , through an intermediate driving belt 18 , placed on the outer circumference of the rotor 2 which is at the same time also the pulley of this coupling . the working head 1 of the embodiment of the machine for surface working of wood workpieces , according to the invention from fig1 is placed in the opening between the entry plate 15 and the exit plate 16 in such a way that the outer edges c of the cutting units 19 lie in the opening between the edge of the entry plate 15 and the edge of the guiding plate 5 , in the same plane or a bit above the surfaces d of the guiding plate 5 , and f of the exit plate 16 . the surfaces d and f lie constantly in the same plane . the outer edges e of the cutting units 19 , in the opening between the edge of the guiding plate 5 and between the edge of the exit plate 16 and surfaces g of the entry plate 15 , there lie constantly a bit lower than the plane of the surfaces d and f . furthermore , the working head 1 in this embodiment is placed between the plates 15 and 16 in such a way that the common longitudinal central axis of the rotor 2 , of the front circular plate 3 and of the fixed axis 8 is shifted by the angle α from the fictive or imaginary vertical to the front surfaces d , f and g , as regards , or with respect to , the entry plate 15 . thus the longitudinal central axis of the front circular plate 3 is also shifted for by the α angle from the horizontal surface d of the guiding plate 5 , which is true also for the angled shift of the edge e as regards the edge c of the cutting units 19 in the position shown in fig1 . in this case the rule applies that in all cases the α angle equals the β angle and vice versa , whereby their size depends on the outer diameter of the working head 1 , or on the front circular plate 3 , and is inversely proportional to it . in case of a larger diameter of the circular plate 3 , the α and β angles are smaller , and if the diameter of the circular plate 3 is smaller , the α and β angles are larger . this means that the width of working of workpieces 51 depends on the size of the outer diameter of the front circular plate 3 and the guiding plate 5 placed into it , as well as on the distance between side laths , which are both not shown and not indicated , placed above the working head 1 . the procedure of surface working the workpieces 51 , or the procedure of their working to an optional thickness , starts by adjusting the thickness of cutting . this is adjusted by the vertical movable entry plate 15 and it represents the height difference between the edge c on the cutting units 19 and the surface g of the entry plate 15 . the rotor 2 is rotated , together with the front circular plate 3 by the driving unit via the driving belt 18 . the workpiece 51 moves along the surface g of the entry plate 15 to the edge c of the cutting units 19 , and during its movement over the cutting units 19 there is removal of the surface of the workpiece 51 . the workpiece 51 , or the surface d of the guiding plate 5 is pressed down by not shown and undescribed press feeding instruments . as was previously described the surface working of the workpiece 51 is carried out on the entry half of the diameter of the front circular plate 3 . when the workpiece 51 is leaving the surface d of the guiding plate 5 , the workpiece 51 slides above the edge e of the cutting units 19 , and it passes over to the surface f of the exit plate 16 . in this way the cutting units 19 , between the edges of the guiding plate 5 and the exit plate 16 or their edges e , do not damage the workpiece 51 when it is leaving the area of the working head 1 . at the same time it is prevented that the workpiece 51 , primarily of smaller dimensions , due to a small aperture , get stuck between the joint edges of the guiding plate 5 and the exit table 16 . according to the invention , after working is finished , the machine is stopped by means of a mechanical brake 11 , which presses with its jaw against the brake disc 10 . by another embodiment of the machine 1 , the front surface of the hub 52 of the fixed axis 8 can also be constructed for an angle whereby the construction of the intermediate small spacing plate 6 is omitted . also the rotor 2 , the front circular plate 3 , the toothed rim 4 , the guiding plate 5 , the fixed axis 8 and its fixture into the housing of the machine 14 , as well as the brake disc 10 with the brake 11 , can be constructed differently . in fig3 there is shown a toothed rim 4 which is constructed on the whole circumference of the front circular plate 3 with the same circular deepening or recess 20 presented in one piece , and has on the whole circumference interchangeably inserted or placed cutting units 19 . the insertion and adjustment of the cutting units 19 in the toothed rim 4 of the front circular plate 3 is shown in fig5 . the individual cutting units 19 are made up of a cylindrical bearing body 35 with a straight surface 45 and a bed 46 skimmed at one side , and is constructed of a cutting plate 36 , wedge 37 with a bevel 47 on the outer coat , and with a centered hole 48 with an inner thread , and is further constructed of a compression spring 38 , fixing element 39 and fixing element 40 . the individual cutting unit 19 is inserted into the toothed rim 4 of the front circular plate 3 in such a way that the compression spring 38 is at first placed into the vertical blind hole 41 , and the wedge 37 with the fixing element 40 is inserted into the horizontal blind hole 42 . then the bearing body 35 with the small cutting plate 36 , fixed with a fixing element 39 , is placed on the compression spring 38 . the bearing body 35 is inserted into the hole 41 in such a way that its straight surface 45 lies in the direction as regards the center of the front circular plate 3 , and rests next to or on the surface 47 of the wedge 37 . the bearing body 35 with the small cutting plate 36 is adjusted to a certain height by feeding the compression spring 38 and is fixed in such a way that by tightening up the fixing element 40 the inclined surface 47 on the wedge 37 is stretched against the straight surface 45 on the bearing body 35 , and thus it is steadily made fixed in the toothed rim 4 . radial deepenings 49 allow in this case a larger inclination of cutting units 19 in the toothed rim 4 , and the adjacent radial deepenings 50 enable undisturbed removal of chips . the small cutting plates 36 are inserted into the bed 46 , on the bearing body 35 and fixed with the fixing element 39 in such a way - that in front view their upper cutting edge lies at the angle γ , or their cutting edge is for that relief angle inclined from the fictive horizontal axis , which is presented in fig6 . the small cutting plates 36 can be of optional regular or irregular geometrical forms . in fig7 the bearing body 35 with a fixed small cutting plate 36 is shown in a side view . it is evident from it that the bed 46 on the bearing body 35 is constructed for the positive δ angle , and for the same angle also the small cutting plate 36 is fixed in it , where the small cutting plate 36 and the straight surface 45 are , with the front , larger surface , turned in the direction of rotation of the front circular plate 3 , or its toothed rim 4 . the positive δ angle of the inclination of the small cutting plate 36 from the longitudinal central axis of the bearing body 35 represents the angle of the chip , which is cut by the individual small cutting plate 36 of each cutting unit 19 on the toothed rim 4 of the front circular plate 3 , on the side of the surface working of the workpiece 51 . in the second embodiment , presented in fig2 the working head 1 is constructed of a vertically placed rotor 2 , of a welded construction and a &# 34 ; v &# 34 ; form , which has at the wider end of the hewn hollow cone 32 a steadily fixed front circular plate 3 with a toothed rim 4 and a vertical , on both sides open hollow tube 28 in the center , and to its other end there is a steadily fixed plate 53 . the hollow tube 28 is conducted through the rotor 2 , the front circular plate 3 and the plate 53 , and it is primarily of the same length as the described coupling . the hewn hollow cone 32 and the front circular plate 3 are on the whole circumference surrounded by a fixed hewn hollow cone 31 , and the rotor 2 is additionally strengthened by an inner ring 29 , an outer rib 30 , an outer ring 33 and an intermediate ring 34 . to the intermediate ring 34 there are also fixed the brake disc 10 with the mechanical brake 11 and the pulley 25 . the front circular plate 3 is placed between the vertical movable entry plate 15 and the fixed exit plate 16 in such a way that it is turned to them with the toothed rim 4 or the cutting units 19 . the toothed rim 4 and the front surface of the circular plate 3 form a deepening or recess 20 , also of a circular form . into the tube 28 of the rotor 2 there is in a tight fit placed a hollow housing 24 , through which a fixed axis 8 with a lubricating channel 27 is inserted , and between them there are tightly fit roller bearings 9 . on the side of the circular plate 3 , at the end of the fixed axis 8 , is by means of a clamping insert 21 steadily fixed the guiding plate 5 , of a circular form , whereas with the other end the axis 8 is steadily clamped into the housing of the machine 14 , by means of a clamping box 13 and a fixing element 23 . between the housing 14 and the cone 32 a fixing ring 26 with fixing elements 22 is fixed to the plate 53 . in another embodiment of the described example of fig2 the rotor 2 can be of different construction . the fixed or static coupling of the second priority embodiment from fig2 is constructed of a fixed axis 8 with a guiding plate 5 and an insert 21 at one end , and with a clamping bush 13 in the housing 14 , at the other end . the rotating coupling of the embodiment from fig2 is constructed of a rotor 2 with a front circular plate 3 and a toothed rim 4 , a brake disc 10 and a pulley 25 fixed to it , as well as the housing 24 of bearings 9 . the rotating coupling is driven by an undescribed and not shown driving unit over a driving belt 18 which entwines the pulley 25 on the rotor 2 . the working head 1 of the embodiment of the machine for surface working of wood workpieces , according to the invention from fig2 is placed into the opening between the entry plate 15 and the exit plate 16 in such a way that the outer edges c of the cutting units 19 lie between the edges of the entry plate 15 and the guiding plate 5 , in the same plane , or a bit above the surfaces d of the guiding plate 5 and f of the exit plate 16 , whereby the surfaces d and f lie constantly in the same plane . the outer edges e of the cutting units 19 , in the opening between the edge of the guiding plate 5 and between the edge of the exit plate 16 , as well as the surface g of the entry plate 15 lie constantly a bit lower that the plane of the surfaces d and f . furthermore , the working head 1 in this embodiment is placed between the plates 15 and 16 in such a way that the common central axis of the rotor 2 , of the front circular plate 3 and of the fixed axis 8 is shifted for the angle a from the fictive vertical to the front surfaces d , f and g , in the direction as regards the entry plate 15 . in this way the longitudinal central axis of the front circular plate 3 is also shifted in the same direction for the angle β from the horizontal surface d of the guiding plate 5 , which is equally valid for the angled shift of the edges e as regards the edges c of the cutting units 19 , in position shown in fig2 . in this case the rule applies described already in the embodiment from fig1 which means that in all cases the angle α = angle β and vice versa , and where the size of these two angles depends on the outer diameter of the working head 1 , or the front circular plate 3 , or the size of the angles α and β is inversely proportional to the diameter of the front circular plate 3 . the larger is the diameter of the front circular plate 3 , the smaller are the angles α and β , and the larger are the angles , the smaller is the diameter of the front circular plate 3 . at the same time this means that the width of working of workpieces 51 depends on the size of the outer diameter of the front circular plate 3 and the guiding plate 5 placed into it , and it also depends on the spacing between both side laths , not shown , placed above the working head . the procedure of the surface working of workpieces 51 with the machine , according to the second embodiment in fig2 equals the previously described procedure of working with the machine according to the first embodiment in fig1 . in fig4 the toothed rim 4 is presented , made in a separate piece , which is welded or fixed in another way to the front circular plate 3 , in such a way that it is constructed on the entire circumference of the plate and together with the plate it forms a circular deepening 20 . the toothed rim 4 has on its entire circumference interchangeably inserted cutting units 19 . the method of inserting , taking off and adjusting the cutting units 19 into the toothed rim 4 of the front circular plate 3 is presented in fig5 and it equals the previous description in the first embodiment in fig1 . the latter is equally valid for the previously described adjustment of small cutting plates 36 into the bed on the bearing body 35 of the cutting units 19 , presented in fig6 and fig7 . the solid construction of the rotor 2 and the fixed or rigid connection of the fixed axis 8 with the guiding plate 5 allow larger diameters of the front circular plates 3 and of the guiding plates 5 placed into them , and consequently also larger working widths . while specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention , it will be understood that the invention may be embodied otherwise without departing from such principles .