US1723688A - Plaiting machine - Google Patents

Description

Aug. 6, 1929.

E. L. EZBELENT PLAITING MACHINE Filed Oct. 19. 1926 2 Sheets-Sheet 1 All}. 6, 1929.

E. L. EZBELENT ING MACHINE Filed Oct. 19. ,1926

2 Sheets-Shet 2 mvenar Patented Aug. 6, 1929.

EUGENE LOUIS EZBELENT, OF PARIS, FRANCE.

PLAI'IIN G MACHINE.

Original application filed August 31, 1925, Serial No. 53,705, and in France June 2, 1925. Divided and this application filed October The machines in current use for the ob tainment of plaited work comprise an upper and a lower plaiting blade which are continuous and have the same length as the machine. The movements of thetwo blades are combined, and they will produce either overlapping knife plaits or underlapping knife plaits, according as they are made to follow one of two plates respectively termed pending application N 0. 53,705 filed August 1 31, 1925, has for its object an improved plaiting machine affording the obtaimnent of patterns, designs and folds which are reversed in the lengthwise direction of the fold. Said machine is chiefly characterized in that it comprises a plura ity of pivoted plaiting blade elements disposed upon the length of the machine, and that certain of the said elements may be given different movements relatively to the others.

Various other features of the invention will be set forth in the following description with reference to the appended drawings, given by way of example, and relative to an embodiment of the said invention.

Fig. 1 is a section of the machine with the plaitlng blades in the front position, and

Fig. 2 is a like view with the plaiting blades in contact with the formation plates. In the construction herein represented, the machine comprises two frames 1 and 2 having the form of angle pleces and carrying rigidly preferably near their ends two steel blades 3, 3 which may form either plaiting blades or stoppers limiting the movements of said frames when said blades come into contact with the usual upper and lower formation plates 10 and 11 of the machine. Said frames extend over all the length of the cylinders, and the lower frame 2 carries at each end two standard plates 4 in which the upper frame 1 is journalled at 5. The plates 4 are provided with journals 6 which are given a straight reciprocating motion towards and away from the cylinders as usual for the blades of plaiting machines.

19, 1923. Serial No. 142,707.

A C-shaped member 7 is secured to the upper frame 1 and is supported through the medium of a roller 8 upon a plate 9 which maybe raised during the rearward stroke away from the cylinders of the journals 6 and of the frames 1 and 2, as usual in wellknown plaiting machines. This will provide for the rotation of the frame 1 upon the journal 5 together with the blades 3 mounted thereon. On each of said frames 1 and 2 is respectively mounted a shaft 13 or 17 on which are mounted carriers 16 and 26 on which are secured the plaiting blade elements 14: and 14 between the two blades 3 of frame sand the two blades 3 of frame 1.

While the upper blade carriers 16 are rotatably mounted on the shaft 17, the lower blade elements 14 are secured to the respective bladecarriers 26, mounted loose on the shaft 13 supported by the frame 2. The upper frame 1 is notched at 19 to provide for the ascent of the said plaiting blade elements. The spring 20 urges each upper plaiting blade element to rotate about the shaft 17 and causes said upper blade element to enter into contact with a lower plaiting blade element. In this manner, each upper element will cause the opposite lower ele ment to descend when the latter is notcontrolled, and when the said lower element is controlled, it will in turn cause the upper through the cylinders, it is necessary that the blade elements 14 and 1 1 become opened.

It has already been stated above that the upper frame 1 and the blades 3 are raised during the rearward stroke by means of the Cshaped member 7. During therotation of the upperframel upon the journals 5, said frame will abut (through the medium of the screw 21) against the rear projection of the upperpivoted blade 16, thereby rotating and raising the latter and thus opening the sets of pivoted plaiting blade elements 1.4 and 14. Each blade carrier 26 is provided with a pivot joint 28 to which is attached the rod29 which is controlled by the link 30 which is rotatable on the shaft 31 supported by the frame 2 andextending all over the same.

A set of lovers 32, respectively corresponding to thevarious links 30, are pivoted upon a rod 33, each of said levers carrying two rollers 34 and 35. A drum 36 having the same length as the machine, is provided with circular rows of holes respectively situated in the vertical planes containing the rollers 34, whereby removable cam elements or bosses 37 may be set-ured to said drum according to needs; the drum may be given an intermittent rotary motion, for instance by a ratchet device, so that it is rotated through half the angular space between two consecutive holes of one row at the end of the forward and rearward strokes of the lower frame, eachhole, or the cam element 'enga ed therein, being in line with the roller 34 'o the corresponding arm 32 during the forward stroke of said lower frame.

When the blade elements are at the end of the forward stroke (Fig. 1) the levers 32 occupy the position shown in the said figure. The drum 36 has rotated in such manner that each roller 34 is situated between two bosses 37, 'or between two consecutive apertures of the drum. The rollers 35 are in the lower position and have no action upon the levers 30, this condition prevailing during the whole rearward motion of the blade elements.

When the said blade elements have attained the end of the rearward stroke (Fig. 2) the drum 36 is rotated through a certain angle; if a boss 37 comes under a roller 34, the same will be raised, as also the corresponding roller 35 together with the lever 30,

so that the pivot 28 will be lowered and the 7 blade element thus controlled will be raised to its upper position. The said blade element will produce an overlapping knife plait. But if there is no' boss below the roller 34, the corresponding blade element will remain in its lower position and will produce an underlapping knife plait. At the end of the forward stroke, the drum 36 will be rotated through a certain angle, and the.

cycle of operations thus continues.

' It will be thus observed that a given boss 37, secured by means of its shank in an aper- 'ture in the drum 36, will cause the corresponding blade element to produce an overlapping knife plait, whilst in the absence of said boss the same blade element will pro- I duce an underlapping knife plait.

In this manner, it will be understood that if the bosses 37 are distributed according to a certain disposition upon the drum, a corresponding pattern or design composed of overlapping plaits and underlapping plaits will be automatically produced on the plait ed workby the said blade elements.

The bosses 37 may be readily secured to the drum 36 and may be disposed thereon according to a great variety of'patterns. I

am enabledto modify the nature of the folds made by; each blade element during the course of the work, without stopping the machine, by inserting or withdrawing the corresponding boss 37. It is to be observed that the use of narrower blade elements will further increase the diversity of the combinations .in the patterns or designs which may be produced.

Obviously, the arrangement hereinbefore set forth by way of example is susceptible of all desired modifications in dot ail.

Having now described my invention, what I claim as new and. desire to secure by Letters Patent is:

1. In a plaiting machine the combination with two pressing drums and with the up per and the lower longitudinal frames, of two sets of plaiting blade elements respectively mounted on said frames, the plaiting blade elements of each set being adapted to pivot upon the corresponding frame independently of each other and about a longitudinal axis and means whereby each of the plaiting blade elements mounted on said lower frame may be raised to and maintained in its upper position only during the forward stroke of said latter frame.

2. In a plaiting machine the combination with two pressing drums and with the upper and the lower longitudinal frames of two sets of plaiting blade elements respectively mounted on said frames, the plaiting blade elements of each set being adapted to pivot upon the corresponding frame independently of each other and about a longitudinal axis, a support adapted to be moved in front of the plaiting blade elements mounted on said lower frame and rows of cam elements respectively corresponding to said latter plaiting blade elements and mounted on said support according to a predetermined disposition and whereby said plaiti'ng blade elements may be raised to and maintained in their upper position during the forward stroke of said lower frame.

3. In a plaiting machine the combination with two pressing drums and with the upper and the lower longitudinal frames of two sets of plaiting blade elements respectively mounted on said frames, the plai ting blade elements of each set being adapted to pivot upon the corresponding frame independently of each other and about a longitudinal axis, a rotary drum parallel with the cylinders of the machine and circular rows of cam elements respectively corresponding to said latter plaiting blade elements and mounted on the periphery of said drum according to a predetermined disposiblade elements of each set being adapted to pivot upon the corresponding frame independently of each other and about a longitudinal axis, a rotary drum parallel with the cylinders of the machine, bosses carrying shanks adapted to be inserted in holes provided in circular rows in the periphery of said drum, and corresponding respectively to said latter plaiting blade elements, said bosses being adapted to raise said plaiting blade elements to their upper position during the forward stroke of said lower frame.

5. In a plaiting machine the combination with two pres-sing drums and with the upper and the lower longitudinal frames of two sets of plaiting blade elements respectively mounted on said frames, the plaiting blade elements of each set being adapted to pivot upon the corresponding frame independently of each other and about a longitudinal axis, rocking arms respectively corresponding to the plaiting blade elements mounted on said lower frame, rows of cam devices respectively corresponding to said rocking arms and adapted to be moved adjacent the same, and whereby said rocking arms may be actuated, and means whereby each blade element is operatively connected with its respective rocking arm.

In testimony whereof I have signed my name to this specification.

EUGENE LOUIS EZBELENT.

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