US1401179A - Combing-machine - Google Patents

Description

J. W. NASMITH.

COMBING MACHINE.

APPLICATION FILED MAY 17, 1916.

1,401,179, Patented Dec. 27, 1921.

3 SHEETS"SHEET v I I, 1/1 B W A I J. W. NASMITH. COMBING MACHiNE. APPLICATION FILED MAYIT. 191s.

Patented'Dec. 27, 1921.

3 SHEETS-SHEET 2- J. w. NASM ITH. COMBING MACHIN E. APPLICATION FILED MAY 17, 1916.

1,401,179, Patented Dec.27,1921.

3 SHEETS-SHEET 3.

UNITED STATES JOHN WILLIAM NASMITH, OF STOCKPORT, ENGLAND.

- COMBING-MACHINE.

Specification of Letters Patent.

Patented Dec. 27, 1921.

Application filed May 17, 1916. Serial No. 98,207.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L, 1313.)

To all whom it may concern:

Be it known that 1, JOHN VILLIAM NA- snrrrr, of Griffin Vorks, Portwood, Stockport, England, have invented certain new and useful Improvements in Combing- Machines, (for which I have filed an application in England, February 14, 1914, Patent No. 3871,) of which the following is a specifieation.

This invention relates to combing machines of the Heilmann type and the chief objects are (1) To so pivot the nipper and top comb in combing machines in which these organs oscillate between the combing cylinder and the detaching roller, placed in close proximity thereto, as in the Nasmith comber, that their movements are reduced to the minimum and so that they can be adjusted and operated independently of each other, without disturbing the relation between the paths (preferably parallel arcs during the detaching period) traversed by the point of the nipper and that of the comb, and without disturbing any of the other adjustments of the comb such as depth or angle and further to provide means to lift the comb (a) at the rear end of its path the better to strike out the waste and (b) to arrange it so that it can be bodily lifted for cleaning and dressing.

(2) To provide means to close the nipper before it reaches the rearmost end of the path and to open it again when or before it commences to move forward, this being necessary as will be further explained by the shortened path of the nipper.

(3) Having made the adjustment of the top comb independent of that of the nipper to combine it with that of the top detaching roller so that while each can be separately adjusted, they can be set together nearer to or farther from the nipper without disturbing any other adjustment.

These objects are achieved in the following manner. In the now well known Nasmith comber the nipper swings on a pivot placed below the cylinder and the point of the nipper aw descrlbes an arc whose convexity is upward, and which if continued in both directions touches the peripheries of the detaching roller and the c linder (see Fig. 1 of Letters Patent of Great Britain, No. 16001 of 1901.) All the parts of the nipper are above this are and describe longer arcs the more remote they are from the pivot. I

By pivoting the nipper a suitable distance above the cylinder the weight is pendent and the arc, with convexity downward, that will touch the cylinder and detaching roller may be much shorter than the one cited above. Also in this case the point of the nipper aw is the part most remote from the pivot and all the operative heavy parts being introduced between it and the pivot greatly reduces the amplitude of the movement of the swinging mass. I further relieve the nipper of the weight of the'top comb by hinging the latter upon the same or upon approximately the same center as the nipper. The point of the top comb needles can then always traverse an are parallel or concentric with that of the nipper point during the detaching period, and the top comb may be operated and adjusted independently of the nipper and may travel a shorter distance than the nip per in accordance with the British Patent No. 4647/11 granted to me. More detailed description is given with reference to the drawings.

In the i asmith comber the nipper closes at that point in its backward movement where it meets the first cylinder needles and begins to open when it reaches the same point in its forward movement, and this is soon enough, as it is far enough from the detaching rollers to permit the combed nipper tuft to rise to the nip of the detaching rollers, without the tips brushing against the previously combed fibers lying around the bottom roller. But when the path of the nipper has been reduced to the minimum, the nipper must still close when meeting the first cylinder needles and before reaching the rear end of its path, and this point is too near the detaching rollers, that is to say too late in the forward movement to open the nipper and the tips of the fibers composing the combed nipper tuft touch the detaching roller fibers in rising and are curled and spoil the piecing. Means must therefore be provided to open the nip per again when or before it begins to move forward and will be further described in reference to the drawings.

Lastly the movement of the nipper having been reduced and in accordance with British Patent No. 4647/11 that of the top 7 connected together, one of which is rocked,

either from the nipper shaft or from a separate cam given a similar motion to that of the nipper as regards time. In this way, While the roller and the comb may be separately adjusted in relation to the nipper they may also be jointly adjusted to the nipper without disturbing their relatioi'i to each other.

Figure 1 is a diagram illustrating the are at or near the center of which the nipper maybe pivoted.

Fig. 2 is a section of the parts above the cylinder but with the feed mechanism omitted.

Fig. is a section through the nipper showing the mechanism for opening and closing.

Fig. at shows the top comb and operative parts and those for rocking the top detach ing roller.

Fig. 5 shows the mechanism for operating the feed roller. 7 p

Referring to Fig. 1 A is the cylinder and D the detaching roller a b is an arc with convexity downward that touches the peripheries of A and D and the center of the arc is at C at or near which the nipper is pivoted. The radius of the arc is chosen as short as will permit the convenient introduction of the various parts of the nipper between the arc and the center. It will be obvious on comparingthis arc with that shown in Fig. 1 of my patent specification 16001 of 1901 that the former is much the shorter of the two; in practice 19; as compared with 2 or thereabouts, 'which is a great mechanical advantage.

In Fig. 3 N is a block free to rock on the fixed pivot N. Secured to N and adjustable vertically thereon is the nipper frame N connected by rods N to levers keyed on the oscillating nipper shaft below the cylinder (not shown). The bridge B is cast to gether with an arm N at either end and carries pins 39 and the bottom nipper jaws 22 The upper jaw 79 is secured at either end to arms N free to run on the pivots p. The up and down movement of the rods N causes the whole nipper to oscillate on the fixed pivots N r a In Fig. 4 C is the top comb blade C the bridge, secured at each end to arm C In each arm is formed an open slot engaging on a bowl'C loose on the pivot N and in a projection on each arm is the adjusting screw G resting normally on the bowl C and r gulating the depth of the comb.

It is evident that rocking on the same center the point of the comb and of the nipper will describe parallel arcs and having secured this concentricity it is easy to rock the top comb by independent means while the nipper is further relieved of the weight of the comb. The top comb, though independently operated may move in time with the nipper but a shorter distance and its distance from the nipper, when both are in their most forward position, which determines the amount of waste. may be easily regulated, as will'be further described without disturbing either the angle or depth of penetration of the comb.

\Vhen the detaching operation is com- )leted and the top comb goes back with the nipper it is desirable to lift it as is usual. lVith the comb pivotedon the nipper pivot this may be done as follows :--C is a rocking shaft carried in hearings in the framing, voscillatedfrom the same source the nipper or from a separate source giving a similar movement. Blocks C are adjustable around the shaft by screws C (as shown in Fig. 2) and carry pendent rods C which pass freely through swivels whose pivots C engage freely in the upper end of the comb arms C The members C are slidable upon rods C, movement in one direction being adjustably limited by nuts C. Thus the member C has a slight lost motion in the swivel'member at C This lost'motion will be taken up when, in swinging about the center C the member C causes the pivot C to swing in a small are about the center 0*. The arcs of the path of the lower end of the swivel and of the nut-s on the lower end of the member G intersect after a slight swing of the members C and thereafter the pivot C will travel in a circle concentric with the nuts on the member C causing thebo-lt C to rise from the roll 0*, thereby causing the member C to slide on said roll. For a short time only, therefore, the member 1 will rotate about N as a center and the comb will travel in an are parallel with the lower nipper frame. By lifting the top comb bodily by hand the swivels C slide up'the rods C and the slot is completely disengaged from the bowl C so that the comb can then be swung outward to the dotted position for cleaning or dressing the needles.

By adjusting the blocks C and their rods C round the shaft C each comb may be set nearer to or farther from the nipper, and all the combs (usually six) having been set alike, they may all be moved together by suitable adjusting means at the end of the shaft C Referring again to Fig. 3, a link N connect's N to a lever N which pivots on a pin N secured in a lever N which at the proper time receives a to and fro movement from the lever N" keyed on the shaft N In lever N is formed a slot N. N is a stud fixed in the frame of the machine and N a bowl thereon, facilitating the movement of N. A spring N pulling constantly in the direction of the arrow is secured to the left hand end of N. C is a shaft in a fixed position and loose thereon is the bowl N. Set screw N in lever N may rest against the bowl N. The nipper is shown at the forward end of its path and it will be understood that it moves about 12 to the right, carrying with it pin 12', but the spring N is holding screw N against bowl N so that lever N and link N cannot move without some force greater than that of the spring. The pin connecting N to N is intermediate between fixed center N and pin 19, which, moving to the right closes the nipper. As soon as the jaws close the continued movement of the nipper and 79 pushes up the link N and moves the lever N around its pivot N taking the screw N off the bowl N and stretching the spring N causing the jaws to nip securely the material to be combed. When the cylinder combing is completed it is necessary as explaine to open the nipper, as soon as or before the nipper begins to move forward. F or this purpose the shaft N is turned slightly by suitable means moving levers N and N and with them the pivot N to the right. The pin connecting lever N to link h strives to traverse an arc whose center is the lower pin in N It does so till the screw N comes again in contact with the bowl N If at this point the nipper moves forward it begins at once to open and if before the nipper moves forward, the lever N and pin N be moved farther to the right the upper pin in N can no longer follow the are but is pulled up in the direction of the arrow R and the nipper begins to open even though the nipper may not have commenced to move forward.

The shaft X Fig. t is carried in hearings in the framing. Levers X are keyed on shaft X to which are pivoted adjusting rods X connected by swivel and adjusting nuts to hell crank lever X rocking on a fixed center X". In the lower end of X is a pin X on which hinges the weighting hook X for rocking the upper detaching roller d. The foregoing arrangement is illustrated and described in British Patent 16001 of 1901.

Fig. 5 shows the feed mechanism. F is the feed roller on the end of which is a ratchet of the ordinary kind and. a loose lever F having the usual pawl. F is linked by F to the pendant lever pivoted on the fixed center N The link F connects the lever F to the lever F clipped on the boss rection and of the levers and F in the opposite direction.

Claims I. In a combing machine the combination of a combing cylinder, at detaching roller, a nipper pivoted above the cylinderin such a position that its point moves on an are that lies closely adjacent to the peripheries of the cylinder and of the detaching roller, and a top comb pivoted approximately on the same center as the nipper.

2. In a combing machine the combination of a combing cylinder, a detaching roller, a nipper pivoted above the cylinder in such a position that its point moves on an are that lies closely adjacent to the peripheries of the cylinder, and of'the detaching roller, and a top comb pivoted on the same center as the nipper.

In a combing machine, the combination of a combing cylinder, a detaching roller, a nipper frame, a shaft pivotally supporting said frame, and a top comb also pivotally connected with said shaft.

4. In a combing machine, the combination with a combing cylinder, a detaching roller, a. nipper frame, a shaft pivotally supporting said frame, a top comb arm movably supported by said shaft, and a top comb carried by said arm.

In a combing machine, the combination of a combing cylinder, a detaching roller, a nipper frame, a shaft pivot-ally supporting said frame, a top comb arm having a slot to receive said shaft, means for adjusting said arm with respect to said shaft, and a top comb pivoted to said arm.

6. In a combing machine, the combination with a combing cylinder, a top comb, a detaching roller, a pivoted nipper frame, a nipper member pivoted thereto, a control lever connected with said nipper member, and means engaging said lever for timing the movement of said nipper member.

7. In a combing machine, the combination with a combing cylinder. a top comb, a detaching roller, a pivoted nipper frame, a nipper member pivoted to said frame, a control lever connected with said nipper member, a movable arm to which said lever is pivoted, and means for shifting said arm.

8. In a combing machine, the combination with a combing cylinder, a top comb, a detaching roller, a pivoted nipper frame, a nipper member pivoted thereto, a spring held control lever connected with said nipper member, a reciprocatory member to which said lever is pivotally connected, and means for limiting movement of said reciprocatory member.

9. In a combing machine the combination with acombing cylinder, a detaching roller, and a nipper; of a top comb, arms carrying the said top comb and each provided with an open slot, a fixed pivot adapted to support the comb carrying arms, and adjusting screws in the said arms the said screws being adapted to rest upon the fixed pivot.

10. In a combing machine the combination with. a combing cylinder, a detaching roller, and a nipper pivoted above the cylinder in such a position that its point moves on an are that lies closely adjacent to the peripheries of the cylinder and of the de taching roller, and a top comb pivoted approximately on the same center as the nipper; of a top comb, arms carrying the said top comb and each provided With an open slot, a fixed pivot adapted to support the combcarrying arms and adjusting screws in the said arms the said screws being adapt ed to rest upon the fixed pivot.

11. In a combing machine the combination with a feed roller, a combing cylinder, 3

top comb, a detaching roller and a nipper pivoted above the cylinder in such a position that its point moves on an are that lies closely adjacent to the peripheries of the cylinder and of the detaching roller; of pawl and ratchet mechanism adapted to impart motion to the feed roller, and means for transmitting motion from the nipper to the said pawl and ratchet mechanism.

12. In a combing machine the combination with a feed roller, a combing cylinder, a top comb, a detaching roller and a nipper comprising two aws and means for opening and closing the same, the said nipper being pivoted above the cylinder in such a position that its point moves on an arc that lies closely adjacent to the peripheries of the cylinder and of the detaching roller; of pawl and ratchet mechanism adapted to impart motion to the feed roller, and means for transmitting motion from a jaw of the nipper to the said pawl and ratchet mechanism;

In testimony whereof I have aflixed my signature, in presence of twowitnesses.

JOHN WVILLIAM NASMITH.

Witnesses V MALooLM SMETI-iURs'r, ERNALD SIMPSON MosnLEY.

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