US1347331A - Adjustable saddle for gill-drawing frames - Google Patents

Description

w. HoLns'woHTH. i ADJUSTABLE SADDLE FOR GILL DRAWING FRAMES.

APPLICATION FILED JUNE 9. |919- 1,347,33 l Patented July 20, 1920.`

SHEETS-SHEET l.

W. HOLDSWOBTH. ADJUSTABLE SADDLE FOR GlLL DRAWING FRAMES.

APPLICATION FILED IuNE 9.l I9I9.

1,347, 33 l Panted July 20, 1920.`

UNITED STATES WILLIE HOLDSWOR-TH, `OF PROVIDENCE, RHODE ISLAND.

ADJUSTABLE SADDLE FOR (HDL-DRAWING FRAMES.

Application filed June 9, 1919.

To all whom t may concern.'

Be it known that I, VILLIE HoLDswoR'rH, a subject of the King of Great Brit-ain, residing at Providence, in the county of Providence, State of Rhode Island, have invented certain new and useful Improvements in Adjustable Saddles for Gill-DrawingFrames, of which the following is a speciiication.

My invention relates to gill-drawing frames and consists of improvements in the means for supporting and guiding the gillbars or fallers as they are traversed from the feed screws of the machine. yThe improvement is directed particularly to the horizontal guiding-track or top-saddle on which the gill-bars or fallers slide 'as they are propelled by their screws; and the object of the improvement is to render the saddle adjustable in position and variable in length, whereby its ends may be located in accurate relation to the threads of the topand bottom-screws to insure their proper guiding-engagemeiit with the bars as the latter are transferred from one screw to the other.

rlhe manner and means for carrying out the improvement are fully described in the following specification, illustrated by the accompanying dra-wings, `in which like reference characters designate like parts.

ln the drawings:

Figure 1 is a side elevation of one lset of the topand bottom-screws ofthe gill-frame, showing my improved adjustable top-saddle in its relation thereto Aand illustrating two of the faller-bars at one end of the screws;

Fig. 2 is an end view ofthe screws, showing the taller-bars in engagement therewith and illustrating their relation to the saddle;

Fig. 3 is a side view of the improved topsadd e;

Fig. 4- is a plan view of the same in crosssection; and Y Fig. 5 is a cross-sectional, detail view of the saddle.

Referring to Figs. 1 and 2.of the drawings, the operating 'mechanism of the gilldrawing frame'comprises, in general, two sets of topand bottom-screws A and B (only one set being shown) arranged in opposite, parallel relation and adapted to traverse the gill-bars or fallers C back and forth in the machine. The taller-bars or combs C are supported to slide on horizontal guides or saddles S-S as they-are Specification of Letters Patent.

Patented July 20, 1920.

Serial No. 302,954.

called, with their ends engaging the threads in the opposite screws to cause them to be traversed therefrom. The top-screws A propel the fallers vC in one direction, and as they reach the end of their operative stroke they are carried down into engagement with the threads of the bottom-screws B, whereby they are traversed back in the opposite direction and then lifted and returned again to the top-screws. In this way a continuous movement is imparted to the fa-llers to pass them back and forth in horizontal paths at different levels. As the fallers C reach the end of the top-screws A they ride ont of the screw-threads thereof and also slide voff from the ends of the top-saddles S. At this point they are operated upon by cams D at the ends of the top-screws A which come into engagement with the bars to force them down into engagement with the bottom-screws B. The bars C are then returned to the opposite end of the bottomscrews B and as they ride out of the threads thereof another set of cams E, carried by the bottom-screws, act to lift them into position to engage the top-screws once more. The above described arrangement is common to practically all types of gill-drawing frames, one form of such a frame being described in U. S. Letters Patent No. 722,984, granted to lVilliam Holdsworth, Mar. 17 1903.

Figs. 1 and 2 illustrate only one set of top-and bottom-screws A and B, but it will be understood that these parts are dupli-l cated on the opposite side of the machine; the faller-bars C being arranged to extend horizontally between the two opposite screws of each pair to engage their ends with the threads of the latter. As shown in Fig. l, the topand bottom-screws A and B are journaled in upright bearings F and Fl supported from the machine frame, and at one end they are connected rotatively by means of intermeshing spur-gears G-Cr. On the outer end of the bottom-screw B is a bevelgear Cr through which both screws are driven from the main power-sliaft of the machine, not herein shown. Cn one side of the machine both the top-and bottoni-'screws A-B have right-hand threads, as shown in Fig. 1, while the opposite set of screws, not herein shown, are left-handed. The topand bottom-screws A-B of each set are rotated in opposite directions as indicated by the arrows -y in Fig. 2, the arrangement Vbeing such that the fallers C will be traversed to the left, as viewed in Fig. l, by the top-screws, and tothe right by the bottomscrews.

As shown in Figs. l and 2, the fallers. C consist of relatively narrow, flat bars having their ends chamfered off on opposite sides to provide slightly inclined end-projections c adapted to be received within the helical grooves of the threads of the screws A-B as the bars extend in horizontal relation therebetween. Intermediate of their ends the bars C are cut away at top and bottom to reduce their width, and are studded along the upper edge with two rows of closelyspaced, sharpened pins or teeth t which form the comb for operating on the material passing through the gill-box or frame. It is further to be noted from Fig. 2 that one side of the enlarged end of the faller or gillibar Cis formed with ashallow slot c adapted to serve as a guiding-groove for engagement vwith the Vend of the top-saddle S as it rides thereover during the transference of the faller from the bottom to the top screw.

It will be observed by reference to Figs. l

' and 2 that there are two saddles at each side of the machine for supporting the opposite ends of the gill-bars C at different elevations. As before indicated, however, my present improvement is applied particularly to the top-saddle SV which serves as the track or guiding-means for the fallers as they traverse longitudinally of the top-screw A. The bottom Vsaddle S serves as a support or track for the fallers C as they follow the threads of the bottom-screw B, and when they reach the end of the lower screw they are lifted oil;1 from the bottom-saddle and transferred to the top-saddle S. The length of the bottom-saddle S is therefore not particularly important except that it be sufficient to 'extend the .full length of the threads ofthe bottom-screw. Cn the other hand, since the fallers C must pass across the ends of the top-saddle S as they are transferred between the two screws A and B, it is essential that this eleinent be accurately proportioned and located in relation to the threads of both screws in order that there may be no interference with the fallers at the instant of their shifting or transference. Heretofore it has always been a. difficult operation to set the top-saddles in relation to the transverse-screws, entailing very careful fitting. 1n many cases it becomes necessary to grind off the ends of the saddle to form it to the proper length andto repeatedly worn or damaged it requires considerable pains and labor to refit a new one to the machine and after the fitting process is completed the saddle must be removedand dering the top-saddle extensible in length and longitudinally adjustable in position so that it may be set with its ends in any predetermined relation to the terminus of the threads in the traverse-screws A and B.

As illustrated in Figs. 1 and 2, the topand bottom-saddles are supported in horizontal positions at the sides of the screws A and B by means of a vertical block or standard H. Referring particularly to Fig. 2, the block H is fastened to the side frame I of the machine, with `a tongue-and-groove connection at t' to locate it in position thereon, and at its front are recesses y' which serve as bearing-seats for theV screws A-B Projecting outwardly from the block H beyond the screws A-B are horizontal ledges L-L to the front faces of which are attached the saddles S-S. The bottom-saddle S con-V lapping parts which-render it extensible in length and longitudinally adjustable thereon. As shown in Figs. 3, 4 and 5, the saddle S is made in three sections with two opposite end-pieces 2 and 3 and a central, overlapping clamp or cleat 4. rllhe cleat 4 is provided with holes 5-5 at its ends for receiving bolts 6-'6 which extend through slots 7-7 in the end-pieces 2 and 3 and screw into the frontk of the ledge 7L, see Fig. 2. As shown in Fig. 4, the end-pieces 2 and 3 are cut away or milled off along their front faces to provide recesses 8-8 for the cleat 4. Referring'` to Fig. 5, the milled portions of the end-pieces 2 andB are preferably concave in cross-section to provide a hollow seat adapted to receive the 'correspondingly Vformed convex inner face ofthe cleat 4. rlhis concavo-convex joint between the engaging Vfaces of the members acts to hold the severa-lparts ofthe saddlein alinement and also provides a more secure clamping-action of the cleat 4. As shown in Figs. B and4, the concavo-convex engagingV faces are provided with relatively fine, V.vertical teeth 9 which are brought into intermeshing engagement when the parts are clamped together to prevent longitudinal displacement therebetween. The end-pieces 2 and 3 are set in place on the front of the ledge 7L, the

cleat V4 placed thereagainst with the con.

plementary, serrated faces in engagement,

` and the bolts 6-6 are then applied thereto to Vclamp the parts together. ln this way the two end-pieces 2 and 3 are held in alinement in fixed position to provide a predetermined `definite relation between their ends.

As shown in Fig. 2, the'gill-bars or fallers C ride along the top of the saddle S with their ends inengagement with the threads of the top-screw A. At the outer end of the screw A is the arm-like cam-member D having opposite cam-faces cZ-CZ which come into engagement with the top of the fallers C after they reach the end of the top-saddle S and ride out of the threads of the topscrew A. rllhe cams D act against the fallers to carry them down into engagement with the bottom-screws B, and at tlie end of their return traverse therealong the operation is reversed to transfer them to the top-screws. F or this purpose the bottomscrews B carry cam-disks E- E which are formed with cam-faces; e-c, see Figs. 1 and 2.

My improved top-saddle is applied to use as follows:

In setting up the machine the bottomsaddle S is secured lixedly in position on its ledge it and the parts 2, 3 and 4: of the top-saddle S are assembled in cooperative relation on the front of the upper ledge z. The gill-bars or fallers C are then set in place with their ends resting on the saddles and their extensions c engaging the threads in the opposite screws, it being understood that a plurality of bars are employed in closely-spaced relation along the screws. After the several fallers C are in place the holding-screws 6-6 for the top-'saddle S are loosened slightly and the vend-pieces 2 and 3 may then be adjusted in proper relation to the ends of the threads of the screws. For this purpose the traverse-screws A and B are rotated slowly by hand and as one of the bars C reaches the outer end of the .screw A the saddle-section 2 is slid longitudinally to adjust it to position with its end engaging the vertical side face of the bar C as the latter rides out from the threads of the screw A and is carried down to the screw B. In the same manner the opposite seetion 3 of the saddle is then adjusted longitudinally with its end in position to en- O'age the opposite side groove c in the bar C which is being raised from the screw B to the screw A. After the end-pieces 2 and 3 of the saddle S have thus been adjusted in position the screws 6 6 are set up against the cleat el to clamp the latter in place with its teeth t in engagement with the serrated faces 3-8 en the end-pieces 2 3. In this way the end-sections of the saddle are se cured firmly in place against the supporting ledge 7L while being held from longitudinal or lateral displacement thereon. Fig. l shows one faller-bar C resting on the bottom-saddle S just as it reaches the end of its traverse to the right; while another bar C is illustrated las having been lifted up across the end of the top-saddle S. It will be noted from this view that as the cam E raises the bar C into engagement with the threads of the top-screw A it lifts it beyond the top of the saddle S, affording a slight clearance so that the bar will be entirely clear of the saddle when the screw-'threads start its traverse to the left. The object of this is to insure that the bar C clears the end of the saddle before commencing its lateral feed, but immediately it passes across the end of the saddle S it will ride off from the cam E and drop down onto the top of the saddle. The right-hand end of the saddle-section 3 is rounded off on its under side and slightly inclined in the direction of the threads of the screws to provide further clearance and assist the entering of the bars into engagement with the top-screw A; whileY at its left-hand end the top of the saddle-section 2 is also rounded off to facilitate the eX-it of the bars from the top-screw.

My invention provides an extremely simple and efficient means for locating the top-saddle of the machine i-n proper relation to the threads of the gill-screws without machining or fitting the saddle to place. My improved saddle is thus rendered inter` changeable for different machines and may be employed as a repair part without requiring the services of a skilled mechanic to set it in place. The parts of the saddle may also be adjusted to compensate for wear at its ends; thus insuring the proper coperation of its parts with the fallers during their transference between the screws and providing for greater durability of the whole saddle. Furthermore, the improvement obviates the necessity of careful and laborious fitting of the top-saddles to the machine when the parts of the latter are assembled in the final stage of its erection, and therefore the cost o f manufacture of the machine is materially reduced.

Various modifications might be made in the structure and arrangement of the parts of my improved device without departing from the spirit or Scope of the invention; therefore, without limiting myself to the exact embodiment herein shown and described, what I claim is:

1. In a gill-drawing frame, the combination with the gill-screws and faller-bars operated thereby, of saddles for supporting the fallers as they are traversed from the screws, and means to adjust the length of the saddles to vary the position of their ends in relation to the screws.

2. In a gill-drawing frame, the combination with the gill-screws thereof, of fallerbars engaging said screws to be traversed therefrom, saddles for supporting the fallers in operative engagement with the screws,

and means to adjust the length of the saddles to vary the position of their ends in relation to the screws.

3. In a gill-drawing frame, the combination with the gill-screws, of faller-bars engaging said screws to be traversed therefrom, and an adjustable saddle for supporting the fallers in operative engagement with the screws, said saddle being variable in lengthto provide for adjusting the position of its ends in relation to the threads of the means for securing the sections in fixed relation. Y

7. An improved saddle for gill-drawing frames comprising two opposite end-sections and clamping means foi-'securing said sections in fixed relation.

8. An improved saddle for gill-drawing frames comprising opposite extensible endsections, a clamping-member extending between said end-sections in overlapping rela'- tion thereto, and means for securing the clamping-member against the end-sections to clampV the parts of the saddle in fixed relation.

9. An improved adjustable saddle for gilldrawing frames comprising extensible sections having concavo-convex engaging faces gether in fixed relation.

for maintaining the parts in alinement, and

means to clamp the sections together to secure them is fixed relation.

l0. An improved adjustable saddle for gill-drawing frames comprising extensible sections arranged in overlapping relation with their engaging faces provided with intermeshing teeth, and means to clamp the sections together to hold them in fixed relation. l

11. An improved adjustable saddle for gill-drawing frames comprising opposite extensible end-sections, a clamping-member extending between the end-sections in overlapping relation thereto, the engaging faces between the parts being formed with cooperating serrations, and bolts extending through the Aclaniping-"nember and end-sections to secure the parts of the saddle to- 12.'ln a gill-drawingV frame, the combination with the gill-screws and fallerbars operated therefrom, of a fixed support, opposite extensible saddle-sectionsy mounted on said support, means for holding said saddle-sections in alinement, and means for clam aine the sections against the su Jort said clamping-means being releasable to allow for longitudinal adjustment of the saddle-sections. Y

3. in a gill-drawing frame the combination with the gill-screws and'fallers operated tlierefrom, f a fixed support, a saddle mounted on said support, said saddle coniprising overlapping .extensible sections, and bolts extending through slots in the saddlesections and screwed into'tlie support.

Y ln testimony whereof I affix my signature,

wiLLin nonnswon'rii.

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