US128999A - Samuel beooks and john standish - Google Patents

Description

s. BROOKS & 2. STANDISH.

Drawing-Frame.

`Patented July 16,1872.

UNITED STATES SAMUEL BROOKS AND JOHN STANDISH, OF WEST'GORTON, ENGLAND.

IMPROVEMENT IN DRAWlNG-FRAMES.

Specification forming part of Letters Patent No. 128,999, dated July 16,1872.

To all to whom it may concern y Beit known that we, SAMUEL BRo'oKs, of West Gorton, near Manchester, in the county of Lancaster, in England, machine-maker, and JOHN STANDIsH, of the same place, mechanic, have invented certain new and useful Improvements in Machinery for preparing Cotton and other fibrous substances;77 and we hereby declare the following to be a full, clear, and exact description thereof, reference'being had to the annexed drawing forming part of this specication.

Our invention relates to the construction and arrangement of devices constituting` the stop-motion of drawing-frames, with a view to rendering their operation more perfect than heretofore.

Description of the Drawing.

Figure l is a sectional elevation of part of a drawing-frame to which our improvements are applied, and Fig. 2 is a plan of the same. Figs; 3 and 4 are detached views of parts of our apparatus. y

a is the roller-beam; b, the stands; o c, the lluted rollers; d d, the top rollers; d', the calender-rollers; e, the rail or plate in which the guide-studs e are xed. f is a plate placed rather .below the plate e, and g is the curved plate overy which the slivers pass as they are drawn out of the cans. his the oscillating shaft, and the oscillating rail of the back stop-motion. The part-s above enumerated are madein the ordinary manner, exceptingthat the front edge of the plate f is beveled, the object of which will be explained hereafter. To the lower edge of the curved plate g are fixed the guides g, which are all made in separate pieces, so that the distance between them may be adjusted to distribute the slivers over the bosses of the drawing-rollers. Between the ends of the plates f and gis the knife-edge rail k, which extends the whole length ofthe frame in order that the spoons l, which iit upon it, may be placed in any position. The peculiar construction ofthe spoons is shown best in Figs. 2 and 3. The part through which the sliver passes is V-shaped and rounded at the bottom, whereby the spoon is adapted to every size of sliver. Thebottom of the spoon is partly cut away in front to ini Crea-se the friction of the slivers on the spoons,

and thereby to allow the same spoons to bev that it may bear against the beveled edge of the plate f when the tail of the spoon has been pushed forward by the oscillating rail t', or other equivalent, as shown in Fig. 4. To the vibrating shaft h is fixed the lever h1, the upper end of which is provided with trunnions, on which the forked end ofthe connecting-rod j fits. This rod passes, as usual, under the drawin g-rollers, and it is provided at the other end with two'inclines, which act on the tails of the spoons` m of the front stop-motion when two such spoons are used, as shown in Fig. 2; but when only one spoon is used the end of the rod j is made as usual. In the front stopmotion the spoon m and the trumpet-mouth av are made in one piece, so that the trumpetmouth, being placed almost immediately over the knife-ed ge or fulcrum on which it -vibrates, may assist in balancing the spoon and render it more accurate in its action. In a double drawin g-head, as shown in Fig. 2, each bein gsupplied with three slivers, as indicated by the dotted lines, the three slivers from each boss are taken through one spoon, m, and these spoons are placed diagonally so that the six slivers may be united in passing between the calenderrollers d the object of using two spoons, whether of our improved description combined with the trumpet-month or of the ordinary description, is also torender their action more accurate. The knife-edges of the spoons m are cast with the curved plate o, which is hinged to the bracket p. On the oscillatin g shaft 71. is fixed a disk, h2, in which is a pin, h3, taking into a curved slot in the boss of the lever s. the upper end of which is connected by the'link s to a crank-pin projecting l -frorn the face of a pinion fixed on the back drawing-roller. The end of the shaft 7i passes through the said curved slot, and also through a straight slot in the lever t, the boss of which is clips fitting on the boss of the lever s, so lat when the lever s is moved by the link s ie lever t is also actuated. The strap-fork c1 `fixed to the rod o, and this rod is pushed idwise when required by the rod w, around 'hlch a spring is coiled, as shown in Fig. 2. `he rod fw has a finger fw which acts when quired on the finger r2 on the rod c.

The mode of operation is as follows, and the rawing represents the parts in the positions hey occupy when the slivers are al1 passing hrough their respective guides and spoons rom the cans to the calender-rollers: The

ail ends of the spoons Zand m are held'up, and he rail 'i and inclines on the connecting-rod j vre free to oscillate to and fro under them. is soon as one or more of the slivers fails to ass through one of the spoons l, the proponleratin g weight of the tail end causes the .poon to assume the position shown in Fig. 4. Ehe end of the tail then drops and comes in ine with the oscillating rail i, which, in movng toward the knife-edge rak, presses the lat edge of the spoon against the beveled idge of the plate f, thereby preventing theI adf'ance of the rail i, and instantly arresting the notion of the oscillating shaft h, but the back lrawing-roller continues to revolve, and the inks s acting on the lever causes the curved ilot in the boss thereof to move on the pin h3, ind this'action ofthe lever s draws the end of 311e lever t beyond the end of the rod w, which, Jeing pushed forward by the spring coiled iround it, then acts on the rod c, on which .s fixed the strap-guide o1, thereby causing the driving-strap to be moved from the fast to the loose pulley. The attendant then replaces the missing sliver or slivers, and the spoon being again brought forward by the sliver, as shown in Fig. 1, allows the oscillating rail i to move to and fro under the tail end of the spoons Z as before. In like manner, when one or more slivers fail between the front drawing-rollers c and the calender-rollers d', the tail end of the spoon m falls, and the incline on the end of the connecting-rod j comes against it, thereby pressing the front ofthe spoon against the edge of the plate o, and arresting the motion ofthe oscillating shaft h; this stoppage throws the driving-strap from the fast to the loose pulley in the manner above described.

Figs. 5 and 6 represent a trumpet-mouth with a sliding plate, preferably used in lieu of the trumpetmouth marked n in Figs. l and 2.

This trumpet-mouth is secured to the plate o, and it is provided with a slotted sliding plate which is set and secured by means of a screw so as to regulate the opening according to the thickness of the sliver passing through it.

We do not claim a knife-edged rail or support for the spoons l or m, nor adjusting the aperture of the trumpet to adapt it to slivers of varying thickness, but merely our improved construction and arrangement of parts for the purpose in view.

Having thus stated the nature of our invention, and described the manner of performing the same, we declare that what we claim herein as new, and desire to secure by Letters Patent of the United States, is-

1. The rests f attached to the platef, and provided with notches to adapt them to receive and support the spoons l of the back stop'motion, as shown and described.

2. A series of sliver-guides, g', attached to the plate g, as shown, whereby each may bc adj usted laterally independently of the others, as set forth.

3. The combination of the strap-guide cl, shafts u w provided with tappets,.the lever t and lever s, as shown and described, to cause the shifting of the drivingstrap from the fast to the loose pulley.

4. The spoons Z arranged to slide or bey adjusted laterally on the knife-edged rail la, as

shown, for the purpose specified.

5. In combination with the strap-guide o1, tappet-shafts fu w, the slotted levers s and t connected, as described, the shaft h, levers, h1, and rail t', connecting-rods j, and spoons m and lof the front and back stop motion, all arranged to operate as specified.

6. The spoons l, of the back stop motion, made of a V-shape and round at the bottom, and cut out or left open at the front, as shown and described for the purpose specified.

7. In combination with the trumpet, constructed as specified, the vertically-moving slide secured by a set-screw working inthe slot thereof, all as shown and described.

In testimony whereof we have hereunto set our hands before two subscribing witnesses.

S. BROOKS. JOHN STANDISII. Witnesses:

H. B. BARLOW, Sr.,

H. B. BARLOW, Jr.

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