US957519A - Hat-brim edging, setting, and rounding machine. - Google Patents

Description

O. E. SAOKETT. HAT BRIM EDGING, SETTING, AND ROUNDING MACHINE.

APPLICATION FILED APR.7, 1909. 957,51 9, Patented May 10, 1910.

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INVENTOR.

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0. E. SAOKETT. HAT BRIM EDGING, SETTING, AND ROUNDING MACHINE.

' A'PI LIDATION FILED APR. 7, 1909.

' Patented May 10, 1910.

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INVENTOR.

Arlwiw a. MAMA c0 Pumo um RA O.E.SAGKETT.

HAT BRIM EDGING, SETTING, AND ROUNDING-MAGHINE.

APPLICATION FILED APR. 7, 1909.

Patented May 10,1910.

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'IIHIJ INVENTOR.

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C. E. SACKETT. HAT BRIM EDGING, SETTING, AND ROUNDING MACHINE.

APPLICATION FILED APR. 7, 1909.

Patented May 10, 1910.

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INVENTOR.

G. E. SAOKETT.

HAT BRIM NG, SETTING, AND ROUNDING MACHINE.

LIGATION FILED APR. 7, 1909.

957,512 Patented 10,1910.

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CHARLES E. SACKETT, OF DANBURY, CONNECTICUT.

HAT-BRIM EDGING, SETTING, AND ROUNDING MACHINE.

Specification of Letters Patent.

Patented May 10, 1910.

AppIication filed April 7, 1909. Serial No. 488,375.

To all whom it may concern:

Be it known that I, CHARLES E. SACKETT, a citizen of the United States, residing at the city of Danbury, in the county of Fairfield and State of Connecticut, have invented a new and useful Improvement in Hat- Brim Edging, Setting, and Rounding Machines, of which the following is a specification.

This invention relates to a machine for edging, setting, and rounding, hat brims after they have been matriced or pressed into their final lateral and longitudinal curves. The machine is capable in itself of matricing and shaping the curl or reversed edge of a soft hat brim from the fiat state, but as applied to stiff hats, it is impossible to perform that process on a single machine. The edge of the hat brim must be broken down, or reversed by a preliminary process. The machine herein described is designed to supplement that preliminary process, and is especially applicable to the manufacture of stifi hats.

On October 30th, 1908, I filed serial application No. 460,353, for a hat brim curling machine That machine was very similar to the one herein described, but it was made primarily applicable to curling or reversing the edges of hat brims in a flat state, therefore applicable to the manufacture of soft hats only, and its rounding mechanism was not adapted to trimming the edge of a matriced hat brim.

On February 8th, 1909, I filed serial application No. 476,816, for a process for shaping and setting hat brims. That process described the use of a preliminary machine for steaming, breaking down, and shaping a vertical flange around the hat brim, and then finishing the curl or reversec edge on a separate machine.

On March 29th, 1909, I filed serial application No. 486,520 for a hat brim matricing and fianging machine. That machine was designed to perform the preliminary work for the machine herein described, which takes up the work on the hat brim where that machine left off. To avoid reheating or lie-steaming the hat brim to be operated upon, a quick transfer of the hat from one machine to the other is required, and the machines are designed to be placed close together, and operated as one machine;

[the process being a continuous one from start to finish. To accomplish this, both machines are fitted with upper and lower brim matrices, and positioning hat blocks exactly alike, but there the similarity ends, the functions of the machines being very different.

The matricing and curling machine herein described is illustrated on the accompanying six sheets of drawings, in which Figure 1, is a front elevation; Fig. 2, is a cross-section on an enlarged scale through the center of the machine laterally, showing a flanged hat brim in position to have a reversed or curled edge formed upon it; Fig. 3, is the same cross-section, the hat brim having been pushed down on the bed matrix, and a series of formative fingers closed over it; Fig. 4, is the same crosssection, an upper finishing matrix having descended upon the hat brim; this view shows the rounding mechanism ready to trim the reversed edge; Fig. 5, is a cross-section of the same features as shown in Fig. 4, but on a central longitudinal line; Fig. 6, is a detail view of the tongue and groove junction of the matrices, with an enlarged view of the reversed hat brim edge and trimming knife; Fig. 7, is a plan view of the rounding mechanism; Fi 8, is a cross-section through line A of Fig. F, in both figures two rounding jack arms are shown to illustrate the different positions they must assume in following the matriced curves of a hat brim, one in section, and one in elevation; Fig. 9, is a detail elevation of the arch supporting the core matrix and its connections; Fig. 10, is a longitudinal crosssection of the same on line B; Fig. 11, is a front view of the separated core matrix and inclosed finished hat; Fig. 12, is a side view of the same; Fig. 13, a plan view of the matrix, the arch in section, and the matrix removed from the hat; Fig. 14, is a plan view of the machine platform on line C, of Fig. 2, showing the adjustable bed plate, bed matrix, conformate fingers, and toe ring; Fig. 15, is a detail of the adjusting screws; Fig. 16, is a half length sectional view of the main shaft, crank, and lever bearings, all concentric with each other.

In all the views similar numerals relate to like parts.

1. Is a suitable machine frame; 2. A platform supported by it; 3. An adjustable bed plate centered over the platform (see Figs. 14 and 15), and made adjustable to and from it, by means of the corner screws 4, secured to the platform, the revolving sockets 5, adjusting nut 6, and lock nut 7 the bed plate has formed in it (see Figs. 2 to 5.), a semicircular elliptical recess 8, to receive the rounded ends of a series of movable conformate fingers 9, the fingers have a toe 10, at their base; a ring 11, secured to the bed plate projects over this toe, and prevents the fingers rising out of the recess; the fingers .have an inwardly projecting point 12, adapted to turn in and press down the peripheral edge of a hat brim, and they may be made of different heights and circumferential widths or shapes to accommodate them to the curvatures of a matriced hat brim; at the back of the fingers are projections 13, adapted to retain a close coiled circular spring 1%, which exerts a strong compressive force against the said fingers,

and makes them automatically and individually elastic in their radial movement; arranged centrally upon the adjustable bed plate within the finger circle is a bed matrix 15; it is secured to the bed plate by dowel pins and screws, common to various other bed matrices which are interchangeable with it; its upper surface is of a concave section adapted to form the lateral and longitudinal curvatures of a finished hat brim; it has a central opening 16, adapted to receive a hat block 17, which may be secured either to the bed plate, or to a flange within the matrix; its outer periphery above the face of its concavity is formed into a ledge 18 (see Fig. 6.), which acts as a tongue to enter a corresponding groove in a corresponding upper matrix, causing them to register accurately with each other; this ledge also defines the peripheral edge of the hat brim.

Arranged centrally above the bed matrix, is a core matrix 19; it has a central opening 20, adapted to receive the crown of a hat; its lower face is convex, and it is curved laterally and longitudinally to register with the face curvature of the bed matrix on which it is adapted to exert pressure, and is therefore termed a core platen; its upper face is adapted to shape the reversed peripheral edge of a matriced hat brim which is folded down upon it by the conformatory fingers; in the views shown, the reversed edge 21 is flat (Fig. 6, shows a full sized detail in section) though curved peripherally. The core platen is detachably secured to an arched member 22, (see Fig. 5, and detail Figs. 9 to 13). It is made in two halves which are parted on the inclined line 23, (see Fig. 11,) so that the halves may be slipped out from under the reversed hat brim edge; when in position, it is secured in the arch by the pins 24, and recess 25, which receives the lip 26, of the spring catch 27;

the arched member is centrally secured to a guide rod 28, (see Fig. 1), which projects upward through the center of the machine, and is secured in a cross-head 29. Rising from the platform on each side of the adjustable bed plate, are guide posts 30, which are connected at their upper end by a cross bar 31, to which they are made fast by nuts the core platen guide rod is continued upward above the cross-head to a box 33, in the crossbar to steady its vertical movement; the cross-head is provided with boxes 3%, sliding upon the vertical guide posts; proj ecting from the boxes are arms 35, in which journal pins 36 are secured. Journaled on the pins are side bars 37, which pass clownward and are journaled at their lower ends uponsimilar pins 38, secured to the extremities of cranks 39, which have their fulcrum ends keyed to a shaft 40.

Arranged upon the machine above the bed matrix, and below the core platen cross-head is a ring frame 41 (see Figs. 1 to 3), it is joined at each side to boxes 42, which have a vertical movement upon the guide posts as high as the stop collars as; the ring frame is constructed with a vertical wall 1%, and a horizontal bottom flange 45; outside of the boxes are hubs as, in which are screwed journal pins 47. Journaled on the pins are side bars 4-8, which pass downward and are journaled at their lower ends upon similar pins 49, secured to the extremities of cranks 50, which in Fig. 1 are shown projecting forward horizontally, and are keyed at their fulcrum ends to a hollow shaft 51, which surrounds the shaft 40, as shown in enlarged half-length sectional Fig. 16. The hollow shaft is journaled in boxes 52, attached to the machine frame, and is retained in position by the collars 53; outside of the machine frame on one side, is secured a lever 54, and on the other side, an arm 55, projecting horizontally rearward and carrying a balance weight 56; the lever will give a vertical movement to the ring frame on the guide posts, to and from the bed matrix.

Secured to one extremity of the interior shaft 10 is the lever 57, and at its other extremity an arm 58, carrying a balance weight 59; the cranks 39, attached to this interior shaft, abut against the ends of the hollow shaft, and act as stop collars to retain the interior shaft in position. The lever 57 on the end of the interior shaft, will give a vertical movement to the cross-head carrying the core platen on the guide posts to and from the bed matrix. It will be noted that all the levers, cranks, and balancing arms, have a common center of motion, and at times one lever will operate both shafts and all their connections.

Attached to the flange of the ring frame on its lower side by a corresponding flange 60, (see Figs. 2 to 5), is an upper matrix 61;

it has a central opening adapted to permit the arch of the core platen and the crown of a hat to pass up through it; its inner circumference 62, is the exact shape of the inside edge of the reversed welt 21, (see Figs. 6, 9 and 11), and forms the tem'plet guide by which that edge is trimmed; its bottom face 63 is curved to correspond with the edge curvatures of the core platen, and the bed matrix, on which it descends and exerts pressure; a short distance up from its curved bottom face it is recessed to form a shelf or track 64, which is exactly parallel with the bottom face curvatures; that face is also provided with a groove 65, which registers with the tongue 18, on the bed matrix, (as shown in detail Fig. 6), the outer vertical face of the upper matrix is elliptical, of the same peripheral form as the bed matrix, but of somewhat larger diameter, in order to provide a rounded bottom edge section shown at 66, in F 6, which descending upon the curved faces of the elastically controlled conformate fingers expands them as shown in F igs-t and 5, relieving them from holding down the reversed welt edge of the hat brim, and taking their place with the extreme pressure of a toggle joint'actuated by the lever 5%, and a bed conformation adapted to shape the desired finished welt or curl upon the edge of the hat brim.

Surrounding the upper matrix, is a heat ing pipe 67, perforated with burner holes to allow a mixed gas and air flame under pres sure, to play upon the matrix to heat it to such a degree as will change the nature of the reversed welt edge, (as a piece of felt,) by drying up all the solvents of the gum shellac by which it is stiffened, and change it to a structure of hardened gum having no elasticity, but designed to render the curvatures of the welt edge permanent; when covered by the hat binding, the welt edge assumes the general appearance of the ordinary stiff hat brin the elliptical heating pipe is flexibly connected by the tube 68, with gas and air supply, and rises and falls with the ring frame to which it is attached.

The rounding mechanism though shown in completed detail in sectional Figs. a and 5, is best shown in plan, section, and elevation, in Figs. 7 and 8; it consists (see plan view 7,) in a circular ring plate 69, mounted upon the flange, and revolving within the wall of the ring frame I1; it is held down by the brackets and rollers 70, secured to the wall of the ring frame; it is revolved by an upright handle 71; between it and the ring frame, is inserted an anti-friction plate 72, supplied with steel ball bearings, as shown in sectional Figs. l, 5 and 8. Mounted upon the revolving ring plate is a post 73, on which is swiveled an arm 7 l, supplied at its other extremity with a vertical hollow box 75, rising from it. The post is surrounded by a coiled spring 76, retained in position by the nut 77; one end of the spring is secured in the arm, the other end around a post 78; made fast to the revolving plate, (see Figs. 7 and 8) located in the hollow box at the end of the arm is a vertical knife shaft 7 9, which passes down inside the upper matrix; it is provided at its lower extremity with, a squared knife head 80, which bears against the vertical teinplet face 62 of the matrix, and rests upon the horizontal shelf or track (it, supported by a wheel 81, (see Fig. 8). The knife head partially split vertically to receive the knife blade 82, which is clamped in position by the screw 83; between the square shoulder of the knife head, and the lower side of the carrying arm, is a spiral spring 8st, surrounding the knife shaft, which shaft plays freely through the vertical guide box, and is topped by the retaining nut 85. it will thus be seen that the knife head and knife have a horizontal hearing pressure adapting them to bear against the vertical face of the matrix acting as a templet guide, and to follow its lateral curvatures when revolved; also that they have a verti al bearing pressure upon the horizontal track of the matrix and will follow its vertical curvatures; the knife head rolling upon the track, and the knife point trimming the edge of the welt, leaving it finished as in Figs. 6. 9 and 11.

The operation of the machine is as follows: The cross-head and ring frame being raised to their highest point on the guide posts by the two operating levers, a matriced hat with a vertically flanged brim soft and hot from a preliminary process is dropped over the hat block rising above the bed matrix; its brim then rests upon the curved head of the conformate fingers as shown in Fig. 2. Lever 57 is now drawn forward, the core platen drops within the vertical flange of the hat brim, which it accurately fits, and pushes it downward into the cavity of the bed matrix, which is a duplicate of its matriced shape, as shown in Fig. 3. In descending, the core platen expands the conformate fingers, which automatically close over it, folding the softened hat brim flange down upon it, lever 54, is now drawn forward, bringing the hot upper matrix down upon the reversed welt, its groove fitting over the tongue of the bed matrix, as shown in Fig. at. The whole hat brim is now confined within a positive mold, the greatest pressure of both toggle joints is now brought to bear upon the formative matrices in conjunction, and the levers which are arranged to hold the pressure are left until the hot upper matrix has setand dried all the solvent materials out of the welt edge, which hardens on cooling into a solid substance without elasticity. The whole process takes but a few moments, rapidity of A in movement being essential. The rounding mechanism is now revolved, and the welt ec ge trimmed while it is confined between the matrices, and the edge is rigid. In descending, the conformate fingers are again expanded by the upper matrix to make room for its foot pressure, and they are held expanded until the operation is completed; the levers are then thrown backward, the upper and core matrices rising together until above the fingers, when the matrices are separated, the hat coming away with the core matrix, as shown in Figs. 9 to 11, by pressure upon the arch spring, the halved matrices are then removed from under the welt edge, which quickly cools and harde-ns.

Various changes in constructive detail may be made, without departing from the principles of my invention, or in the process, as for instance, the rounding mechanism here shown may be dispensed with, and a pair of ring shears substituted for trimming the welt edge, as described and claimed by me in serial application, No. 450,043, filed Aug. Qtth, 1908, hat brim curling machine.

Having thus described my invention, what I claim and desire to secure by Letters Patent 1. In a hat brim edging, setting, and rounding machine, the combination of a machine frame supporting a platform, a bed matrix supported by said platform adapted to shape the under side of a curved hat brim, a series of automatic conformate fingers elastically controlled adapted to reverse or curl a curved peripheral edge section of said hat brim inwardly upon itself, a heated upper matrix adapted to set said reversed or curled edge by heated contact with it, a ring frame to which said upper matrix is attached, a revolving rounding mechanism mounted on said ring frame, guided by said matrix, and adapted to trim the reversed curved edge of said hat brim, with means to bring said upper and lower matrices and rounding mechanism into operative conjunction.

2. In a machine of the character described, the combination of a frame supporting a platform, an adjustable bed-plate arranged centrally over said platform, a bed matrix having a concavity adapted to shape the curvatures of a finished hat brim removably and centrally secured to said bed-plate, a hat block centrally secured in said bed matrix adapted to position the crown of a hat upon it, and a series of adjusting screws adapted to level said bed plate and secure it to said platform.

3. In a machine of the character described, the combination of a frame supporting a platform, an adjustable bed-plate supported by said platform, a bed matrix centered upon said bed-plate adapted to shape the curvatures of a finished hat brim, means to raise or lower said bed matrix, an annular recess in said bed-plate surrounding said bed matrix, a series of upright formative fingers radially movable therein, said fingers being adapted to shape the curved peripheral edge of a finished hat brim, and a ring partially overhanging said recess, and secured to said bedp1ate, adapted to retain said fingers in position.

4. In a machine of the character described, the combination of a frame supporting a platform, an adjustable bed-plate supported thereon, a bed matrix centrally and removably secured to said bed-plate, a series of upright formative fingers radially movable in an annular recess surrounding said bed matrix, said fingers being of difierent heights adapted to follow the peripheral curves of a matriced hat brim, and an elastic band surrounding said fingers automatically controlling their radial vibratory movement.

5. In a machine of the character described, the combination of a frame supporting a platform, an adjustable bed-plate supported thereon, a concave bed matrix removably and centrally secured to said bed-plate; said bed matrix being adapted to shape the under face of a finished hat brim, and a raised ledge surrounding the peripheral curves of said matrix, said ledge acting as a tongue to enter a groove in a corresponding upper matrix adapted to register with it.

6. In a machine of the character described; the combination of a frame supporting a platform, an adjustable bed plate supported thereon; a bed matrix removably secured to said bed-plate adapted to shape the under side of a finished hat brim; a raised ledge surrounding said bed matrix adapted to shape the peripheral edge of said hat brim; an expansible and contractile ring composed of a series of upright fingers surrounding said bed matrix elastically controlled; said fingers having a series of internal projections adapted to close over said ledge; said projections being adapted to follow the peripheral curves of said hat brim.

7. In a machine of the character described; the combination of a frame supporting a platform; an adjustable bed-plate supported thereon; a removable bed matrix, centrally secured to said bed-plate; a hat block rising centrally above said bed matrix; a core matrix surrounding said hat block removably secured to a member arching over said hat block; said core matrix having a vertical movement on said machine frame to and from said bed matrix; said core matrix having its lower face convex, and adapted to seat itself in the concavity of said bed matrix, with whose curvatures it registers.

8. In a machine of the character described; the combination of a frame supporting a platform; an adjustable bed plate supported thereon; a removable bed matrix centrally secured to said bed-plate; a hat block centrally arranged thereon; a core matrix surrounding said hat block and having a vertical movement on said machine frame to and from said bed matrix; a series of conformate fingers elastically controlled surrounding said core matrix, when seated upon said bed matrix within the ledge raised thereon; said fingers expanding to admit the passage of said core matrix, and contracting above it when passed; the internal projections on said fingers being adapted to fold a vertically flanged section formed around the edge of a hat brim when pressed between the said matrices, down upon the upper face of said core matrix.

9. In amachine of the character described; the combination of a frame supporting a platform; a removable bed matrix supported by said platform; a hat block centered thereon; a core matrix surrounding said hat block secured to an arched member having a vertical movement to and from said bed matrix; said core matrix being detachably secured to said arched member by pins entering the bottom of said arch, said pins having recesses which intercept a spring catch pivoted in said arch; said core matrix being constructed in two halves for its ready removal from within the overlapping curl, fold, or welt, of a hat brim pressed down above it by a series of conformate fingers surrounding it.

10. In a machine of the character described; a frame supporting a platform; vertical guide posts secured in and rising from said platform on either side; a bar connecting said guide posts at their upper ends; a bed matrix centrally arranged, supported by said platform; a core matrix centrally arranged above said bed matrix, detachably secured to an arched member; a guide rod having its lower end secured in the crown of said arch, and its upper end secured in a cross-head having boxes sliding vertically upon said guide posts; arms projecting horizontally from said boxes; side bars journaled upon the ends of said arms; said side bars passing downward and journaled at their lower extremities to the ends of cranks; said cranks being attached to a shaft passing through a hollow shaft journaled in boxes upon said machine frame; a weighted balance arm attached to one end of said interior shaft and a lever to its other end, whereby a vertical movement is given to said core matrix upon said machine frame, to and from said bed matrix.

11. In a machine of the character described; a frame supporting a platform; vertical guide posts secured in and rising from said platform on either side; a bar connecting said guide posts at their upper ends; a bed matrix centrally arranged supported by said platform; a core matrix seated upon it; a circular ring frame with side boxes adapted to slide vertically upon said guide posts; said ring frame being constructed with a vertical circular wall; a horizontal bottom flange, and an open central space within said flange; arms projecting horizontally from said sliding boxes; side bars journaled upon the ends of said arms; said bars passing downward and journaled at their lower extremities to the ends of cranks, said cranks being attached to a hollow shaft surrounding an interior shaft; a weighted balance arm attached to one end of said hollow shaft, and a lever to its other end, whereby a vertical movement is given to said ring frame, upon said machine frame to and from said bed matrix and said core matrix.

12. In a machine of the character described; a frame supporting a platform; a bed matrix centrally arranged thereon; a series of conformate fingers elastically controlled surrounding said bed matrix' core matrix centrally arranged and having a vertical movement upon said machine frame to and from said bed matrix; a ring frame arranged above said core matrix, having a vertical movement upon said machine frame to and from said matrices; and an upper matrix removably attached by a flange to the under side of said ring frame; said upper matrix having a central open space with walls of the same elliptical periphery and bottom curvature as the inside edge of a reversed welt formed upon the edge of a hat brim when pressed between said matrices; said elliptical periphery forming the templet guide by which said hat brim welt is trimmed; said upper matrix being recessed a short distance above its bottom curvatures to form a track running parallel with said curvatures; the bottom of said upper matrix being also grooved to form a recess registering with a tongue upon the periphery of I said bed matrix, and upon which it is adapted to be seated; said upper matrix having its exterior bottom edge rounded in order to expand easily the series of conformate fingers surrounding said bed matrix through which it is adapted to pass.

13. In a machine of the character described; a frame supporting a platform; a bed matrix supported thereon; a core matrix centrally arranged above it adapted to be seated upon said bed matrix; a ring composed of a series of upright formative fingers elastically controlled surrounding said matrices adapted to automatically fold the peripheral edge of a hat brim over the edge of said core matrix; an upper matrix centrally arranged above said core matrix, adapted to expand said conformate fingers and to be seated on the border of said core matrix above said felt border, and to exert pressure upon both matrices in conjunction; a heating pipe surrounding said upper matrix with perforated gas and air burner openings, adapted to heat said upper matrix to a degree that will eliminate the solvent stiffening materials from the felt upon which it rests, changing said felt from a porous, elastic body, to a hard, solid body.

14:. In a machine of the character described; the combination of a frame supporting a platform; a bed matrix centrally arranged above and supported by said platform; an expansible and contractible ring composed of a series of upright conforniate fingers surrounding said bed matrix; said fingers being provided externally with brackets removably inclosing an elastic close coiled spring exerting a compressive force behind said fingers; said fingers being provided with internal faces limiting their forward movement, and curved heads adapted to slide upon the impinging edges of descending matrices adapted to expand said fingers.

15.'In a machine of the character described; the combination of a frame supporting a platform; a bed matrix centrally arranged thereon; a core matrix centrally arranged above said bed matrix, and having a vertical movement upon said machine frame; a lever controlling said movement attached to a shaftjournaled in said machine frame; an upper matrix also centrally arranged upon said machine frame above said core matrix, and having a vertical movement upon said machine frame; a lever controlling said movement attached to the end of a hollow shaft surrounding the shaft controlling the movement of said core matrix; said shafts having a common center of motion, whereby both matrices are movable by a single lever in an upward or downward direction.

16. In a machine of the character described; the combination of a frame supporting a platform; a bed matrix centrally arrangedthereon, adapted to shape a finished hat brim; a horizontal ring frame arranged above said bed matrix having a vertical movement upon said machine frame to and from said bed matrix, and an upper matrix centrally arranged beneath and supported by said ring frame; a revolving knife bearing mechanism permanently mounted on said ring frame above said upper matrix; said upper matrix having an internal vertical face forming a templet guide for the point of said knife laterally, and a horizontal track forming a templet guide for the point of said knife vertically; said knife being removably clamped in a knife head bearing yieldingly against said guiding surfaces, adapting it to follow and trim the edge curves of a finished hat brim said knife head being supported by said horizontal track.

17. In a machine of the character 'described; the combination of a frame supporting a platform; a bed matrix centrally arranged thereon adapted to shape a finished hat brim; guide posts rising vertically from said platform; a horizontal ring frame having a vertical movement on said guide posts to and from said bed matrix; said ring frame being constructed with a vertical circular wall at right angles to a bottom flange; an upper matrix adapted to shape a reversed welt upon said hat brim removably attached to the under side of said flange; a circular ring plate provided with a handle to revolve it bedded upon the upper side of said flange within said circular wall; rollers bracketed to said wall adapted to retain said ring plate in position; an anti-friction mechanism inserted between said revolving ring plate, and said ring frame; a vertical post erected on said ring plate; a horizontal arm pivoted upon said post; a spiral spring coiled around said post, one end being secured in said arm, the other end secured to said ring plat-e, giving a resilient horizontal movement to said arm; an elongated hollow box erected at the other end of said arm; a vertical shaft journaled in said box; said shaft terminating at its lower extremity in a knife head in which a wheel is pivoted adapted to roll upon a horizontal floor recessed within said upper matrix; said knife head being continued down to bear yieldingly against a vertical face, also formed within said upper matrix; a knife blade clamped in said knife head between it and said vertical face, its point ex tending yieldingly below it; a spiral spring surrounding said shaft between said knife head and the lower side of said horizontal arm giving a resilient movement to said shaft and knife head; the said rounding mechanism when revolved by the handle on said ring plate, being adapted to trim the inside reversed edge of a finished hat brim.

18. In a machine of the character described; the combination of a frame supporting a platform; an adjustable bed plate centrally arranged over said platform; means to adjust said bed-plate adapting it to bed matrices of varying heights when bedded upon it; means adapting said matrices to be interchangeable with otherbed matrices; a core matrix arranged above said bed matrix adapted to be seated upon it;

means to make said core matrix vertically anisni vertically movable upon said machine frame, and means adapting said rounding mechanism to trim the reversed edges of varying hat bri1ns,When shaped between corresponding sets of matrices in conjunction, upon said machine frame.

In testimony whereof, I, CHARLES E.

fication in the presence of two subscribing Witnesses, this 2d day of April 1909.

CHARLES E. SACKETT. VVit-nesses JAMES P. WILSON, E. R. l/VILsON.

\ SACKETT have signed my name to this specil l

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