US1183409A - Pattern-cutting device. - Google Patents

Description

H. N. STEINMAN.

PATTERN CUTTING DEVICE. APPLICATION FILED OCT. 22, 1914.

l 1 8&4U90 Patented May 16, 1916.

2 SHEETSSHEET I.

H. N. STEINMAN.

PATTERN CUTTING DEVICE. APPLICATION FILED OCT. 22. 1914.

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g I 5 12 1 7 6A 5 1\ k W s. V 26 a Patented May16, 1916.

'2 SHEETS-SHEET 2- Cook and State of it being is ting patterns,

at edge is thus obtained.

HARRY N. STEINMAN,

antenna-comma nnvrcn.

To all whom it may concern:

Be it known that I, HARRY N. STEINMAN, a citizen of the United States, and a resident of the city of Chicago, in the county of Illinois, have invented certain new and useful Improvements in Pattern-Cutting Devices; and I do hereby declare that the following is a full, clear, and exact description of the same, reference had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

This invention relates to a device for cutalthough it is well adapted for use for many other similar purposes. The mechanism embraces power driven cutting disks coacting with one another to cut a material, either cloth or paper, as the case an may be, from both sides simultaneously, thus finishing both edges'of the severed fabric and acting also to distribute a small quantity of oil along the cut, so that in the case of paper patterns a finished and protected An illuminating means is also associated with the device adapted to direct a beam of light directly downwardly upon the path to be taken by the cutter, which is movable in the hands of the an operator and capable of being guided and turned to follow even the most irregular path.

It is an object of this invention to construct a power driven cutting device movat able from point to point under the guidance of an operator, rapidly cutting a material and leaving a clean sharp edge.

It is also an object of this invention to construct a cutting device embracing out ting disks the cutting edges of which bear closely against one another, and with power driven mechanisms for driving said cutting disks.

It is also an important object of this in- 5 vention to construct a cutting device mounted upon a carriage adapted to be moved from point to point under the guidance of an operator and with vertically revolving cutting disks mounted on said carriage acting to cut the material as the carriage is advanced and the material passes upwardly upon the same.

It is furthermore an important object of this invention to construct a cutting device embracing rotatable cutting members mounted upon a carriage and driven from W specification of Letters ratent.

Application filed October 22, 191%.

Patented May re, rare. Serial no. team.

a suitable source of power and capable of guidance from place to place under the hand of an operator, at the same time feeding a flow of 01 or grease to the edges of the material cut, the power driving means so connected with the cutting mechanism as to be readily connected or disconnected therefrom by means associated with the handle of the device.

It is finally an object of this invention to construct a power driven illuminated cutting device adapted to be moved from point to point under the guidance of the hand of an operator and to direct a flow of heated grease to the cut edges of the material operated upon.

he invention (in a preferred form) is illustrated in the drawings and hereinafter more fully describe In the drawings: Figure 1 is a side elevat1on of a device embodying the principles of my invention. Fig. 2 is a front View thereof. Fig. 3 is a fragmentary detail section taken on line 3-3 of Fig. 2. Fig. 4: is a fragmentary detail section taken on line of Fig. 1, with parts omitted and with parts in elevation. Fig. 5 is a fragmentary detail section taken on line 55 of Fig. i. Fig. 6 is a detail section taken on line 63-45 of Fig. 3. Fig. 7 is a View partly in section and partly 1n elevation illustrating the clutch controlling mechanism mounted for control by a lever associated with the handle of the-device. Fig. 8 is a fragmentary detail view taken on line 8-8 of Fig. 2. Fig. 9 is a fragmentary side elevation illustrating the adjustable bearings which support the cutting'disks. Fig. 10 is a fragmentary detail section taken on line 1010 of Fig. 9. Fig. 11 is a detail section taken on line 11 11 of Fig. 1.

As shown in the drawings: The cutting carriage 1, which top wall 2, and a bottom wall 3, with an inclined front wall 4, sloping upwardly from the bottom of the carriage to the top wall thereof. An integral frame piece is supported upon said carriage and consists of a flat plate 5, recessed into the top Wall 2, of the carriage and eX- tending upwardly therefrom is a rectangular and vertically slotted housing or casing 6, which merges into the walls of a cylindrical portion 7. A bracket piece 8, havin a slot 9 therein, is securely but adjustabl; mounted upon the cylindrical portion 7, by

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means of a screw or bolt 10, and said bracket piece, as clearly shown in detail in Fig. 10, is provided with an integral yoke piece 11, which projects into the slotted housing 6, and supports therein a small worm gear 12, keyed upon a shaft 13, which is journaled in said bracket piece. A washer or collar 14, is engaged over the outer end of said short shaft 13, which is reduced in diameter and squared, as indicated by the reference numeral 15, to receive an edged cutting disk 16, engaged thereon. A nut 17, is threaded on the outer end of said shaft 13, and together with a spring washer 18, serves to maintain said cutting disk 16, pressed resiliently inwardly toward said collar or washer 14. Disposed just above said plate 5, and integral therewith, is a pointed or angled abutment member 19, which, as clearly shown in Fig. 8, has an aperture therethrough through which a driving worm shaft 20, mounted in the tubular member 7, extends. Said driving worm shaft 20, as clearly shown in Figs. 3 and 4, is provided with an upper right handworm 21, and a lower left hand worm '22, and at its lower end said shaft rests in a pivot bearing 23, formed in the bottom wall 3, of the carriage. A tubular extension 24, integral with said plate 5, extends downwardly therefrom into the interior of the carriage 1, and through which said driving worm shaft extends, and at its lower end, as clearly shown in Figs. 3 and 9, affords a means of attachment for an adjustable bracket 25, in which a shaft 26, is journaled having secured thereon a small worm gear 27 meshing with the worm 22, The worm wheel 12, of course meshes with the worm 21, so that said respective worm wheels 12 and 27 are driven in opposite directions, due to the right and left hand arrangement of the driving worms. Secured upon said shaft 26, is an edged cutting disk 28, held thereon by a nut 29, and with a collar 30, interposed between the disk and the collar 25. Of course said plate 5, is provided with a slot therein, through which the respective cutting disks 16 and 28, which bear against one another for a portion of their peripheries, project.

As clearly shown in Fig. 7, the upper tubular portion 7, is flanged outwardly and provided 31, around which a tubular casing member 32, engages and rests upon the upper flanged portion of said tubular member 7 A small inclosed electric motor 33, is supported upon the upper end of said casing member 32, and the armature shaft 34, of said motor has feathered thereon a grooved male conical clutch member 35. The upper end of the driving worm shaft 20, is provided with a female clutch member 36, and the lower extremity 37, ofthe motor shaft 34, is reduced in diameter and is journaled in the upper with a vertical and circular flange end of said driving worm shaft 20, thus insuring positive alinement of said respective shafts 34 and 20, at all times. Said casing member 32, is provided with a lateral extension 38, upon which a handle 39, is secured by means of one or more screws 40. Pivoted in a recess in said lateral extension 38, is a bell crank 41, one arm of which is provided with a long extension 42, closely adjacent the handle 39, and the other extension of which is provided with a yoke 43, engaging the grooved male clutch member 35. Consequently when wardly against the handle 39, by the fingers of an operator, the clutch member 35, is thrust downwardly into engagement with the female clutch member 36, thus causing the worm shaft 20, to be driven by the motor shaft of the device. Secured upon said casing member 32, by screws or any other suitable attaching means is a small container 44, provided with an insulating cover 45, from which heating coils 46, extend downwardly into said container. An outlet pipe 47, communicates with the bottom of said container 44, and leads downwardly into a position directly behind the meeting point of the cutting disks and said pipe is provided with a small valve 48, at the upper end thereof." Said container is filled with a non-fluid grease or oil, and when it is desired to use the same, the current is switched on through the heating coils 46, thereby raising the temperature of the grease causing the same to liquefy and flow out through said the extension 42, is held uppipe 47. A protecting shield or hood49,

is formed on one side of said tubular member 7, and covers the greater part of the upper portion of the cutting dlsk 16, thus protecting an operator in the use of the machine.

In order to facilitate the use of the device an electric bulb 50, is mounted on the forward end thereof in alinement with the handle 39, and is provided" with a shield or hood 51, to direct the light downwardly.-

upon the carriage and cutting disks.

In order to permit easy movement of the device from point to point during a cutting operation, a plurality of balls 52, are mounted in suitable recessesformed in the under surface of the lower wall 3, of the carriage,

said balls being retained therein by suit able bushings 53.

The operation is as follows: During a cutting operation the operator'merely grips the handle 39, maintaining the lever 42, upwardly thereagainst, which thus thrusts the male clutch member 35, into engagement with the clutch member 36, effecting a driving connection between the motor shaft 34 and the worm driving shaft 20. The right and left hand worms 21 and 22, respectively, serve to drive the respective cutting disks 16 and 28, through the respective worm lasagna gears provided therefor in opposite-directions, so that as the carriage 1, is advanced, the material to be cut travels upwardly on the front inclined wall 4, thereof and said disks readily sever the same. The pointed or angled member 19, which is positioned directly behind said cutting disks, acts to deflect one of the severed portions of the material to one side. The current for the heating coils 46, within the container 4%, may be switched on to heat the grease contents therein, and when the valve L8, is opened, the grease flows downwardly and is directed by means of the pipe 47, upon the edges of the material cut. The appllcation of grease to the edge of the cut material is sometimes desirable as it forms a protective coating therefor. The adjustability of the bracket piece 8, which affords a bearing for the upper cutting disk 16, as Well as the bracket piece 25, affording a bearing for the lower disk 28, permits adjustment of said disks to compensate for wear when the same have been ground or sharpened. Of course the small electric bulb 50, with the shield 51, projecting thereover, serves to direct a beam of light directly upon the work operated upon, so that the line of cut, as for instance in a pattern, may be easily and quickly followed. Tf it is desired to stop the rotation of the cutting disks the operator merely releases the lever 42, which, due to its weight, falls downwardly by gravity, thereby raising the yoke 43, and disconnecting the motor from the driving worm shaft 20.

I am aware that various details of construction may be varied through a Wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

I claim as my invention:

1. In a device of the class described, a movable carriage, a driving motor thereon with its armature shaft disposed vertically, a cutting disk, and a drive shaft geared to said disk and in alinement with and driven by said armature shaft.

2. In a device of the class described, a movable carriage, a driving motor thereon with its armature shaft disposed vertically, a cutting disk, a drive shaft geared to said disk and in alinement with said armature shaft, and a clutch for connecting and disconnecting said shaft.

3. In a device of the class described, a movable carriage, a driving motor thereon with its armature shaft disposed vertically, cutting disks disposed one vertically over the other, a driving worm shaft mounted in alinement with said armature shaft, worm gear connections between said shaft and said cutters, and a clutch for connecting said shafts.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

HARRY N. STETNMAN.

Witnesses:

CHARLES W. HILLs, Jra, FRANK K. HUDSON.

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