US845817A - Tentering-machine. - Google Patents

Description

. PATENTBD MAR. 5, 1907. H. L. QUICK. TENTERING MACHINE. APPLIOATION FILED JUNE 20.1905.

6 SHEETS-SHEET 1. I

Q H H N Mum 94 |||||.L, llllll l Ir lllllllllllllll x| B T. Ill lL AT 7,

@Xhmmw 1m? NORRIS PETERS cm, wnsmuarou, a. c.

PATENTED MAR, 5, 190/.

. QUICK.

TBNTERING MACHINE. AI'BLIOATIONIILBD JUNE 20,1905.-

5 SEEETS-BHBET 2.

1n: mamas PEYERS 60., wnsnmarou, n. c.

No. 845,817. PATENTED MAR. 5,1907. H. L. QUICK. TENTERING MACHINE. APPLICATION FILED JUNE 20.1905.

;, SHEETS-SHEET 3 0, WASHINGTON, n. c.

TENTERING MACHINE.

APPLICATION FILED JUNE 20.1905.

6 SHEETS-SHEET s.

wi bvmoc w THE NORRIS PETERS ca, wasumamm mic" UNITED STATES PATENT ICE. HOWARD L. drhhkidr hiw YORK, N. Y.

TENTERlNG-IVIACHINE.

Specification of Letters Eatent.

Application filed June 20, 1905. Serial No. 266,179.

Patented March 5, 1907.

To all whom, it may concern:

Be it known that I, HOWARD L. QUICK, a citizen of the United States of America, and a resident of the borough of Brooklyn, city of New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Tentering-Machines, of which the following is a specification.

My invention relates to tentering-machines for treating textile fabrics of the class wherein two endless chains or conveyers consisting of clamps are combined with mechanism for reciprocating said conveyers longitudinally bodily simultaneously in opposite directions and at the same time moving them toward or from each other while they are being driven, so as to stretch the fabric on a diagonal line while feeding it forward.

The object is to so arrange and construct the mechanism which drives the endless chains or conveyers, consisting of clothclamps, as to permit the simultaneous longitudinal reciprocation of the conveyers on each side of the machine in opposite directions and at the same time permit these conveyers to be moved toward ahd'away from each other without any irregularity in the speed of movement of the conveyers and without any interference with the correct operation upon the cloth and the even and regular stretching of the same in the manner and for the purpose in view.

Additional objects of the invention, as well as various details and peculiarities in the construction and ctanhiationof the parts, will be hereinafter more fully described; and it may be said that the invention consists, essentially, in the construction, arrangement, and combination of parts, substantially as will be hereinafter described and claimed.

In the annexed drawings, illustrating my invention and constituting a part of this specification, Figure 1 is a top plan view of one portion of the machine and the driving mechanism. Fig. 2 is a top plan view of the other end portion of the machine. Fig. 3 is a side elevation of that part of the machine represented in Fig. 1. Fig. 4 is a side elevation of that part of the machine represented in Fig. 2. Fig. 5 is a left-hand end elevation of the machine as represented in Fig. 1 and illustrates particularly the driving mechanism for the chains carrying the clamps. Fig. 6 is a transverse section of the machine, showing an intermediate support and a mechanism for adjusting the longitudinal conveyers relatively to each other. Fig. 7 is an enlarged cross-section through one of the reciprocating conveyers or frames and shows the end of one of the pivoted cross-bars, together with the means for adjusting the frames or chains. Fig. 8 is a plan view of a couple of cloth-clamps, showing the way in which they are linked or connected to each other. Fig. 9 is an end elevation of the machine, showing a modified form of mechanism for driving the chains. Fig. 10 is another end elevation of the machine, showing a further modification in the mechanism for driving the chains. Fig. 11 is a diagram indicating the action on the cloth during the vibration of the side frames carrying the chains. Fig. 12 is a detail plan view on line 12 12 of Fig. 5, showing gears 67 69 and intervening gear 70.

Similar characters of reference designate corresponding parts throughout the dilierent figures of the drawings.

I Un each side or the machine is an endless chain consisting of a series or cloth-clamps 72, each having a pivoted clamping-plate 71, whose edge is movable up and down away from or toward a bed or table on which it clamps the cloth. 'lhese clamps are linked or pivoted together in some suitable manneras, ror instance, by the pivots 100, as shown in Fig. 8. For convenience or illustration the detailed construction of the clamps 72, while shown as to one form in Figs. 7 and 8, is omitted in Figs. 1 and 2, and in lieu thereo; dotted rectangles 1 serve to delineate the links, the latter being shown as being carried by the longitudinal lateral horizontal rrames 2 and 3, which irames reciprocate endwise and also are moved bodily toward and away rrom each other during the operation of the machine. The chains 1 pass around sprocket-wheels 4 and 5 at the lert-hand end or the machine and similar sprocket- wheels 6 and 7 at the right-hand end. Both ends of the frames 2 and 3 are enlarged, so as to be somewhat wider than the diameter of the sprocket-wheels, and these frames 2 and 3 are made up or' a plu raiity of sections united together at points where the horizontal pivotally-supported cross-bars S and 9 are located. in Fig. 7 the construction or the frames 2 and 3 is represented vs ith considerable detail, and there it is seen that each or these rrames consists or two parallel ways, channels, or guides 10 and 11,

IIIO

separated by an intervening partition 12, on which is a flat overhanging plate 13. The channels 10 and 11 contain the chains 1, so that the links of these chains, carrying the cloth-clamps 72, travel up one side and down the other side, or, in other words, travel in one direction in one channel, as 10, and in the opposite direction in the companion channel, as 11. The flat plate 13 on the top of the partition 12 and extending partly over each of the channels 10 and 11 while serving to confine the chains and guide them in their movement permits the clamps 72, belonging to each link, to project through the tops of the channels and along out over the frame, so as to occupy a position where the edge of the cloth is easily grasped by the clamping-plate 71. Near the ends of the machine are the pivotally-supported cross-bars 14 and 15,

which are identical in construction with the cross-bars 8 and 9.

I will proceed now to describe the construction and arrangement of the cross-bars 8, 9, 14, and 15. Each is carried by a support 16, (see Figs. 4 and 5,) which has a pivot 17 in its upper end, on which the cross-bar turns. (See Fig. 6.) Each bar has longitudinal horizontalflanges 18 on each side of its upper flat face 19, on which face 19 slides a segmental block 20, having depending jaws 21, which embrace the flanges 18 and keep the block 20 on the cross-bar. (See Figs. 6 and 7.) Through the two blocks 20 at both ends of any particular cross-bar, as 8, plays a horizontal rod 22, having near each end sections thereof provided with reversely-cut threads which engage threads within the blocks 20, and the ends of the rod 22 are provided with hand-wheels 23, so that as said hand-wheels are revolved the blocks 20 are caused to approach each other or recede from each other, according to the direction in which the rod 22 is revolved. This rod 22 is supported in bearings 22 22, projecting from the upper side of the bed 19 near the middle of the cross-bar 8, (or 9 or 14 or 15, as the case may be.) The upper face of each block 20 is provided with a stud-bolt 24, serving as a pivot and entering a perforation in the hub 25 of a plate 26, which lies on the face of the block 20. This plate 26 is free to move on the stud 24 as a pivot, in this movement sliding on the top surface of block 20, and said plate 26 has in its upper side a radial dovetailed groove (see Fig. 7) to receive a slide 27, the latter having a depending arm 28 at its front end, in which is swiveled the end of a screw 29, turning freely therein, and having a threaded portion which engages and turns within a similarly-threaded opening in the plate 26. The screw-rod 29 is provided with an' operating-wheel 30. When the screw 29 is turned by the manipulation of the hand-wheel 30, the slide 27 will be caused to change its relation with the plate 26 and be moved toward or away from the pivot 24. The various slides 27 support the frames 2 and 3, and each slide has, as shown in Fig. 7, on its upper side dowel-pins 31, entering holes in the sections of the frames 2 and 3. Inasmuch as the frames 2 and 3 are made in sections and I have said that these sections are connected together at the points where the cross-bars 8 and 9 are located, it will be evident that ifthe two abutting ends of contiguous sections are connected to the same slide 27 by dowel-pins 31 or other equal securing means the sections of the frames will be united at these points and so combined as to provide a strong and serviceable structure, and it will be observed that the screw- rods 22 and 29 are thus able to provide for a delicate adjustment of the frames 2 and 3 either independently or relatively, the hand-wheels and 23 for operating these screws being at the sides of the machine, where they can be very readily laid hold of for use. The operation and results of the adjustment of these screws 2 and 29, particularly the latter, will be more clearly evident after inspection of the diagrammatic view in Fig. 11, where it will be seen how it is possible to move the lines of the clamping-plate 71 nearer to each other and over and beyond the pivots 24.

Referring to Fig. 7, it will be seen that the edge of the clamping-plate 71 is directly above vertically the center of the pivot 24, and this is indicated. by the dotted line 90 x, which is dropped vertically through the edge of the clamping-plate 71 and the center of the pivot 24. By manipulating the screw rod 29 it will be seen that the edge of the clamping-plate 71 can be shifted in the direction of the arrow at y or in the direction of the arrow at 2, being thus carried beyond the center of pivot 24 in one direction or the other. Now when the lines of the clampingplate 71 have been moved toward each other, as shown in Fig. 11, and consequently over and beyond the pivots 24 in the direction of the arrow 0 the line a a will indicate the distance between the clamps or the width of the cloth to be treated, which cloth is held by the clamps. During the reciprocal movement of the frames 2 and 3 and their vibration toward each other the pivots 24 will travel along the circular paths 0, and while the points where the cloth is clamped are retained in their horizontal relationship by the frames 2 and 3 the transverse threads of the cloth on the lines a a will be shifted to occupy the line b b when the frames are oscillated. The line b b is longer than the line a a, as is evident from the dimensions in the diagram in Fig. 11. (Notice in particular the dotted arcs (Z d.) Hence the threads at one time in the position of line a a will when placed in the position of the line b b be stretched, and this is what occurs along the whole length of the frames 2 and 3 and upon all of the threads of the cloth when the cross-bars 8, 9, 14, and j 15 are swung around to the limit of their oscillation, as indicated by the dotted lines in Fig. 11. Obviously when the line of the edges of the clamping-plates 71 is in the vertical line a; a: in Fig. 7that is to say, when it is directly over the center of the pivot 24-the difference between the lengths of the line a a and Z) bwill be m l; but the more the lines of the clamping-plate 71 are adjusted toward each other or in the direction of the arrow y the greater will be the difference between the lines I) b and cm, and consequently the greater the stretch or strain on the threads of the cloth, and, conversely, the farther the lines 7 1 are adjusted away from each other or in the direction of the arrow at z the shorter will the line b b be than the line a a and the less the strain on the transverse threads of the cloth. j

' ternieshing gear-wheel 52 on the shaft 51 For the purpose of oscillating cross-bars 8, 9, 14, and 15 and reciprocating the chain-carrying frames 2 and 3 I journal a shaft 32, which receives motion from any suitable source of power about midway of the machine, (see Fig. 2,) and provide its inner end with a pinion 33. This pinion 33 through the gear- wheels 34 and 35 rotates a shaft 36, carrying a beveled pinion 37, meshing with the teeth of a wheel 38 on the same upright shaft 90 which carries the horizontal disk 39,

which disk is thus geared down to a comparal tively slow rotation. The disk 39 has on its upper face a wrist-pin 40, engaging one end of a pitman-rod 41, whose other end is pivoted to a pin or stud 42, (see Fig. 1,) rising from a sliding block 43, which reciprocates in the slot 44 in the frame 45. A link 46 connects the stud 42 with a stud 42, depending from the cross-bar 8, so that with the rotation of the disk 39 the several cross-b ars are all caused to swing into the positions indicated in dotted lines in Figs. 1 and 2 and the plates 26 swing on their pivots 24, thus allowing the frames 2 and 3 to retain their parallel rela tionship, although moving toward each other and although reciprocating in opposite direc tions. The frame 45 is located in a diagonal position at an acute angle to the adjacent lateral frame 3. While the block 43 moves up and down in its slot, it moves obviously on a line of similar obliqueness to the frame 3, which line is consequently at an obtuse angle to the cross-b ar 8, and on reaching the end of its forward movement the link 46 and its cross-b ar will, as shown in dotted lines in Fig. 1, be thrown into such relative positions as to avoid too acute angle at their point of connection, and thus prevent buckling.

The clamp-carrying chains, which, as I have shown, are supported in the side frames and driven up and down therein and around the end sprocket-wheels, are driven by suitable mechanism, which is best shown in Figs. 3 and 5. 47 denotes a driving-pulley revolving in the direction shown by the arrow.

.1 to back with gear 59.

Pulley 47 is carried by a horizontal shaft 46, suitably journaled in the main frame 48 and having on its inner end a beveled pinion 49. A horizontal bevel-gear 50 engages with the pinion 49. Gear 50 is on an upright shaft 51, which is sustained in its upright position by a standard 53, which has an overreaching arm 54 or strut in which hangs and-is pivoted a sleeve 55, carrying a horizontal shaft 56, fur ther supported by rollers 57 at each end thereof, on which rollers the shaft 56 easily rotates. These rollers 57 are carried by the horizontal stationary segments 58, whose upper faces are dressed and lubricated, so that the said rollers may move freely back and forth on the horizontal faces of the said segments 58. Fastened to the shaft 56, so as to rotate therewith, are the bevel gear-wheels 59, 60, and 61.

near the upper end thereof. It is to be particularly noted that bevel gear-wheel 52 is of the same size as gear-wheel 59 and also that the gear-wheel 60 occupies the same relative position on shaft 56 as the gear-wheel 61 that is to say, its cogs are so placed relatively to the cogs of the gearwheel 59 as to perform the same work as gear 61, though gear 61 is face to face with gear 59 and gear 60 is back Gear 60 engages a horizontal bevel-gear 62, and gear 61 engages a similar horizontal bevel-gear 63. Gear-wheel 62 is carried by the bracket 64 on the frame 2 and gear-wheel 63 by bracket 64 on the frame 3. The lower ends of the shafts of the two wheels 62 and 63 are supported by the sleeves 65 on shaft 56, and these shafts respectively carry gear- wheels 66 and 67, said wheel 66 meshing with a wheel 68 on the lower end of a short shaft journaled in the end of the frame 2 and carrying on its upper end the sprocket-wheel 4. The sprocketwheel 5 in frame 3 is carried by a short shaft having on its lower end a gear-wheel 69.- Between the gear-wheel 69 and gear-wheel 67 is interposed an idler-pinion 70, which performs an important service in giving to the sprocket-wheel 5 a direction of motion the reverse of that of the sprocket-wheel 4, as shown by the arrows. 1 have already said that the gear-wheel 52 is of the same size as the gear-wheel 59. It is necessary now to further state that the gear-wl'ieel 60 must be of the same size as the gear-wheel 62 and the gear-wheel 61 of the same size as the gearwheel 63. If, however, the gear-wheel 59 were made of the same size as the gear-wheel 60 and the gear-wheel 62 of the same size as the gear-wheel 52, the same result would be accomplished, in which case the gear-wheel 63 would be of the same size as the gear-wheel 52. Moreover, it must be understood that the gear-wheel which imparts motion to the gear-wheel 59 must apply its power to said wheel'59 on the opposite side of the axis of Gear 59 is driven by an inthe shaft 56 from that on which the driven gear 60 (or the driven gear 61) applies its power to the companion gear 62, (or the companion gear 63.)

It is of the highest importance in the operation of a machine of this character that the movements of the endless chains, and consequently of the clamps which hold the cloth, should be regular and not halting or jerky or such as to result in uneven tension being put on the cloth or unequal strain, besides an uneven puckering in the surface of the cloth while under treatment. The irregular movement in the chains, which has heretofore been common with machines of this class, the chains running sometimes slower and sometimes faster and lacking uniformity and precision, is productive of very bad results, and I aim to overcome this by the mechanism which I have just described and wherein the gears are related as I have set forth. This irregularity in the speed of the chains ordinarily has heretofore been largely due to the fact that the gears were not properly arranged to admit of the complicated movement of the mechanism, which involves, as is readily seen, the double action of the shaft 56to wit, a rotation about its own axis and a horizontal oscillation about the axis of the gearwheel 52, which imparts motion to the shaft 56.

As the shaft 56 rotates on its axis and at the same time oscillates about the axis of gear 52, it must be obvious that While it is being revolved forward in the direction of the arrow as the result of the interaction. of

the gears 52 and 59, said gear 59 is in consequence of the horizontal oscillation of the shaft moving backward, and consequently a certain amount of the forward rotation of saidshaft 56 is lost, which loss is communicated similarly to the gear-wheel 60, which engages gear-wheel 62, which through gears 66 and 68 transmits motion to sprocketwheel 4. As gear 62 is a horizontal gear and rotates in a horizontal plane and also is carried backward with the gear 60 along an arc of which the axis of gear 52 is the center, it is obvious that the motion lost by the backward movement of the vertical gear 60 is recovered by the horizontal gear 62, and hence this gear revolves uniformly and the sprocketwheel 4 likewise has a regularity of rotation, and consequently the chain moves evenly, but this correction bf the movement of the chain is made possible by making the gears 52 and 59 and the gears 60 ar. d 62 of the same size as already explained. Hence I correct and overcome what has heretofore been found to be an insurmountable difficulty by making the gear-wheel 52 equal to the gear-wheel 59 in size ard the gear-wheel 60 equal to the gear-wheel 62 and by having the point at which the gear-wheel 52 applies its power to the gear-wheel 59 on the opposite side of the axis ofshaft 56 from where gear-wheel 60 applies its power to gearwheel 62; but such a correction on one side of the machine in the driving of one of the chains would be useless and'purposeless if there were not a corresponding correction in the movement of the chain on the other side of the machine. Consequently I locate the gear 61 on shaft 56, so that it will do the same work as is done by gear-wheel 60, its application to the shaft being the same as that of gear-wheel 60, and hence when the gear-wheel 59 moves backward the gearwheel 61 also moves backward, and consequently exactly the same retardation is given to the gear-wheel 61 as is given to the gearwheel 59; but this loss is regained by horizontal gear 63, and hence the chain on this side of the machine is moved in exact correspondence with the movement of the chain on the other side. Inasmuch as it is essential that both inner rows of clamps on the chains should move in. the same direction, it is necessary to insert the intermediate gear between gears 67 and 69 in order that the sprocket-wheel 5 may revolve in the opposite direction from the sprocket-wheel 4. The same result is of course accom plished if the gear-wheel 61 is made equal in size to the gear-wheel. 59 and the gear-wheel 63 equal in size to the gear-wheel 52. In this description of the backward movement or drag on the shaft 56 and a retardation thereof, when I have spoken of the oscillation of this shaft I have been assuming that the movement of that one-half of the shaft carrying the bevel gear-wheel 59 was in the direction of the arrow at in Fig. 1 and not to ward the position of shaft 56, (shown in dotted lines in that iigure,) or, in other Words, that the oscillation of the shaft at d the gear 59 was a forward and not a backward oscillation, which forward oscillation by gaining upon the gear-wheel 52 causes a retardation.

When the shaft 56 oscillates backward, or takes the position shown in dotted lines in Fig. 1, the reverse result ensues to that when it is moving the other way, for in this backward movement the gear-wheel 59 gains on the gear 52 and causes an acceleration of motion, and inasmuch as the revolution of y the gear-wheel 59 is the same as that oi the gear-wheel 60 and as gear-wheel 62 is the same size as gear 60, this accelerated motion is lost when gear-Wheel 62 rolls on gearwheel 60, and an exactly identical motion is communicated by the gear-wheel 61 to the gear-wheel 63 and the sprocket-wheel 5, except that through the arrangement of gearing sprocket-wheel 5 revolves in a reverse direction to that of the sprocket-wheel 4. In this manner therefore the movement of chains on the two sides of the machine is made precisely equal, uniform, and identical, and

there is no such variation or irregularity as to cause a puckering of the cloth or an uneven stretching thereof. Of course the sizes of the gears may be changed as much as desired, but it is essential that these gears should in whatever changes are made therein conform to the following proportion: gear 59: gear 52:: gear 60: gear 62:: gear 61: gear 63.

In Fig. 9 I have represented a modification of my invention. Here instead of a single shaft 56 I have two shafts 74 and 75, substantially equivalent in length and manner of arrangement with the single shaft 56. The inner ends of the shafts 74 and 75 are journaled in the pivoted box 86, while their outer ends are supported in sliding boxes 87, carried on horizontal segments similar to the segments 58. 81 denotes a driving-pinion on a vertical shaft 91, carried in suitable bearings. On shaft 91 is a gear-wheel 92 and a gear-wheel 93. The gear-wheel 93 transmits motion to a chain of gears 85, which apply their power to and revolve a shaft 84, on the upper end of which is a bevelpinion 94, engaging a bevel gearwheel 83 on shaft 74, whereby the shaft is driven. Shaft 74 has also thereon a bevel-gear 76, which drives the gear 66, and thus actuates the link-carrying chain on one side of the machine. The gear-wheel 92 on the shaft 91 actuates a train of gear-wheels 82, which,

apply their power to and rotate a hollow shaft within which the aforesaid shaft 84 is installed. Shaft 80 carries on the upper end thereof a bevel gear-Wheel 79 of larger diameter than the gear-wheel 94, and it meshes with and turns a gear-wheel 78 on the shaft 75. Power is carried from shaft 75 to the link-carrying chain on the other side of the machine through the medium of the interacting gears 77 and 67, and it will be observed that while the gear-wheel 66 revolves in one direction the gear-wheel 67 revolves in the opposite direction. The operation of the gears 83 and 94 is identical with that of the gear-wheels 59 and 52, and the result on the chain at one side of the machine is precisely similar, and also the operation of the gear- wheels 78 and 84 is precisely the same as that of the gear-wheels 59 and 52 and also as the gear-wheels 83 and 94, and consequently the movement of the chains and links on both sides of the machine is exactly uniform and regular.

In Fig. 10 I have delineated a still further modification of the means for making uniform the movement of the chains and eliminating all irregularities. It is unnecessary to describe all the-parts of this figure in detail as most of them are the same as in Fig. 5. Instead of a single shaft 56, however, two shafts 88 and 89 are employed, arranged in such a manner as to constitute, in effect, a single shaft. Instead of having the gears 60 and 61 placed on one shaft in exactly the same way I have the gear-wheel 96 on one shaft with its cogs facing one way and a gearwheel 97 on the other shaft with cogs facing the other way. While the gear 96 revolves in one direction, the gear 97 revolves in the other direction. A single driving-pinion 98, similar to the pinion 52, is employed, and this gear 98 instead of driving a single gear, as 99, alone, drives also another gear 99"". The gear 99 revolves in one direction and is on one of the shafts, as 88, and the gear 99 revolves in the opposite direction and is on the other shaft, as 89. Hence the result produced on the two chains in compensating for irregularities produced by the oscillatory and reciprocatory motions of the shafts and the chains is corrected, and the movement on one side of the machine corresponds exactly to that on the other side, and the objectionable puckering or creasing of the cloth is obviated.

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

1. In a tentering-machine having endless moving chains carrying cloth-clamps, frames supporting the chains, and means for reciprocating them and moving them toward each other, means for driving the chains consisting essentially of a shaft having a movement of rotation and one of horizontal oscillation around a pivotal point, two vertical bevel gear-wheels on said shaft on opposite sides of its pivotal point, facing in the same direction on the shaft, and gearing on each frame engaged and actuated by the said vertical gears, for securing uniformity in the movement of the chains.

2. In a tentering-machine having endless. chains carrying cloth-clamps, frames supporting the chains, and means for reciprocat ing themand moving them laterally toward each other, means for driving the chains, consisting essentially of a shaft having a rotary movement and also one of horizontal oscillation around a pivot, a bevel-gear on the shaft at one side of the pivot, a bevel-gear driving it of equal size, two bevel gear-wheels on the shaft on opposite sides of the pivotal point, of equal size and facing in the same direction on the shaft, a horizontal'gear of equal size ing the shaft, two vertical bevel-gears of equal size facing in the same direction on the shaft near opposite ends thereof so as to perform precisely the same Work, horizontal bevel-gears arranged and driven by said two gears, a gearing whereby one of said horizontal gears communicates motion to one of the chains, and another gearing whereby the other horizontal gear communicates motion to the other chain, all arranged so that the two chains may move in the same direction.

4. In a tentering-machine having endless chains carrying cloth-clamps, means for driving the chains consisting essentially of a shaft having a movement of rotation and also one of horizontal oscillation on a pivotal point, vertical bevel gear-Wheels on said shaft on opposite sides of its pivotal point, said gearwheels being placed on the shaft facing in the same direction, and intermediate connections between said vertical gear-wheels and the chains whereby the latter are actuated with a uniform movement.

5. In a tentering-machine having endless chains carrying cloth-clamps, the combination with the chains, of means for driving them consisting essentially of a shaft having a movement of rotation and one of horizontal oscillation on a pivotal point, two vertical bevel gear-wheels on said shaft on opposite sides of the pivotal point, said gear-wheels being placed facing in the same direction on the shaft and being of equal size, a drive-gear also on said shaft between the pivotal point and one of the aforesaid gears, mechanism for imparting motion to said drive-gear, and intervening mechanism between the aforesaid vertical gear-wheels and the chains whereby the movement of the gear-wheels is imparted to the chains and secures uniformity in the movement of the latter.

6. In a tentering-machine having lateral endless chains carrying cloth-clamps, frames supportin the chains, which frames are re ciprocatecI and oscillated simultaneously, pivots on which the oscillations take place, said pivots being supported on adjustable blocks, means for adjusting the blocks on opposite sides relatively to each other, and means for adjusting the clamping-points of the cloth-clamps relatively to the said pivots on which the oscillatory action occurs in order that a proper stretching of the threads of the cloth may take place during the oscillation.

7. In a tentering-machine having endless chains carrying cloth-clamps, and frames supporting said chains, said frames having guides or ways and a separating-partition, in which guides the chains move, means for imparting a reciprocatory movement to said frames as well as a movement thereof bodily toward each other, said means consisting essentially of horizontal bars, central pivots for supporting them and pivotal connections between the outer ends of the bars and the said frames, said latter pivotal connections including adjustable blocks with means for adjusting the blocks relatively to each other, and means for adjusting the clamping-points of the cloth relatively to the pivots ofthe last-mentioned pivotal connections.v

8. In a tentering-niachine having endless chains carrying cloth-clamps, and frames supporting said chains, means for imparting a reciprocatory movement to said frames as well as a movement bodily toward each other, said means including bars or rods, pivots therefor, adjustable blocks thereon carrying pivots, means for adjusting said blocks relatively to each other, and means carrying the chain-supporting frames, which means are adjustable for the purpose of regulating the position of the clampingpoints of the cloth relatively to the last-mentioned pivots of the movable blocks, in order that a proper stretching of the threads of the cloth may take place.

9. In a tentering-machine having endless moving chains carrying cloth-clamps, and frames supporting the chains, which frames are reciprocated and oscillated simultaneously, means for performing the reciproca tion and oscillation and at the same time al lowing of an adjustment of the parts, consisting essentially of vibratory cross-pieces which extend between the two sides of the machine, pivots near the ends of these cross-pieces on which pivots the oscillations occur, adjustable blocks supporting the pivots, plates through which the pivots pass, slides in said plates connected to the frames, and an adjusting-screw in the slides for shifting them with relation to adjacent pivots and thus adj usting the clamping-points of the cloth relatively to said pivots on which the oscillatory action occurs in order that a proper stretching of the threads of the cloth may take place during the oscillation.

10. In a tentering-machine having endless chains carrying cloth-clamps, frames supporting said chains, said frames having guides or ways, and a separating-partition, in which guides the chains move, means for imparting a reciprocatory movement to said frames as well as a bodily movement toward each other, said means consisting essentially of a vibratory shaft having a central pivot on which the vibration takes place, and means for adjusting the frames relatively to each other, consisting essentially of blocks, and a screw-rod connecting said blocks, and means for adjusting the frames relatively to the pivots on which the oscillatory action occurs, said pivots being supported in said blocks, and said means consisting essentially of devices connected to the frames and provided with screw-rods for changing the position of the clamping-points of the cloth-clamps relatively to the pivots.

11. In a tentering-machine having endless moving chains carrying cloth-clamps, and frames supporting the chains, means for re? ciprocating them and moving them bodily toward each other, consisting essentially of pivoted crosspieces, and adjustable means on said cross-pieces having pivots near the ends forming a part of the rotary connection between the cross-pieces and the chain-carrying frames, and means for driving the chains consisting essentially of a shaft having a movement of rotation and one of horizontal oscillation on a pivotal point, two vertical bevel gear-wheels facing in the same direction on said shaft on opposite sides of the pivotal point, and gearing connections between said gear-wheels and the chains, for

securing uniformity in the movement of the I latter.

Signed at New York city this 7th day of June, 1905.

HOWARD L. QUICK. Witnesses:

JOHN H. HAZELTON, I. HEIBERG.

Images