US1204997A

US1204997A - Embroidery-trimming machine.

Info

Publication number: US1204997A
Authority: US
Inventors: Rudolf Loeb
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-12-18
Filing date: 1909-12-18
Publication date: 1916-11-14
Anticipated expiration: 1933-11-14

Description

R.- LOEB.

EMBROIDERY TRIMMING MACHINE.

APPLICATION FILED DECJS, I909.

Pdfented Nov. 14, 1916.

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R. LOEB.

EMBROIDERY TRIMMING MACHINE.

APPLICATION men Mac. 18. I909.

1 ,204,997. Patented Nov; 14, 1916.

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RUDOLF LOEB, 0F CAMDEN, NEW JERSEY.

invented certain Improvements in Embroidery-Trimming lvlachines, of which the following is a specification.

My invention relates to mechanical means for cutting or trimming embroidery edging;

the machine forming the subject of my invention being particularly adapted for cutting or separatingthat form of embroidery known as Hamburg edging from strips or sections of material containing a number of edgings as such form of en' broidery is usually made. As is well known, such embroidery comprises a series of curved scallops formed by means of buttonhole or other stitching in the body of a sheet or strip of fabric, which stitching has the effect of providing a raised surface consisting of a number of curved projections extending in a relatively straight line; such projections being substantially hard or firm and of an ornamental character. As noted, this type of embroidery is manufactured in the form of a strip or sheet of fabric containing a plurality of embroidered lines subsequently forming edgings, and when such material is used as a trimming for garments or for other purposes, it is necessary to separate the embroidered edge from the material beyond such edge and forming the support for the next embroidered edge; and the object of my invention is to provide mechanical means for accomplishing this work.

The essential feature of my invention consists of a horizontally disposed horizontally reciprocating knife adapted to cut or shear the material containing the embroidered or stitched edges directly adjacent oneiof said embroidered or stitched edges. This knife is carried by suitable means mounted so as to be reciprocated, and said knife is arranged to work diagonally with respect to the line of movement of thefabric to be trimmed, being so disposed that it cuts on the upper side of the fabric directly adja cent one of the embroidered or stitched edge and without damaging in any way said:

embroidered or stitched edge.

A further object of my invention is to Specification of Letters Patent.

EMBBOIDERY-TYRIMMING MACHINE.

Patented Noiniet, 1916.

- Application filed December 18, 1909. Serial nasaarso.

provide means for facilitating the work of the cutting blade and to insure a perfect trimming action without danger of damaging the goods operated upon.

These and other features of my invention are more fully described hereinafter, reference being had to the accompanying drawings, in which:

Figure 1, is a plan view of apparatus embodying my invention and capable .of

cutting or trimming embroidery such as Hamburg edging. Fig. 2, is a front eleration of the same. Fig. 3, is a sectional view on the line III-J11, Fig. 1. Fig. 4, is a plan view of sufiicient of the embroidery trimming means to illustrate a modified construction within the scope of my invention. Fig. 5, is a sectional view on the line VV, Fig. 4. Fig. 6, is an enlarged sectional View similar to Fig. .5, illustrating the manner in which the embroidered edging is trimmed. and Fig. 7, is a view illustrating a form of embroidered fabric capable of being trimmed by the machine forming the subject of my invention. i

In the present embodiment of my invention, I have shown a machine capable of cutting or trimming a plurality of edgings,

but it will be understood that the cutting' mechanism and the means for operating the same are exactly alike in each instance, hence the description is directed to but a single set of coacting elements for effecting the desired result.

In the drawings herewith, 1 represents aof the :machine is a combined guide and" guard 7 for a cutting blade or knife 8. This cutting blade is in the formv of a very thin strip of metal wound upon a: hub 10 carried by a spindle '11 journaled'in a suitable sup port- 12 carried by said guide 7; the carrying means for said knifehaving a fixed rela tion with respect to the guide. The com bined guard and supporting guide carrying the cutting blade is arranged to be reciprocated in Ways 5 in said bracket 6; motion for this purpose being imparted by means of an arm 15 connected to an eccentric 16 driven by a shaft 17 suitably journaled on the bed-plate 2 and driven by a belt 18 and a pulley 19; the belt extending from a pulley (not shown) j ournaled on the frame of the machine and suitably driven. The arm 15 is secured to the rear end of the guard or guide 7 before referred to, and the eccentric 16 may have a strap with a rounded surface to engage a hub 16 with a similar surface; such elements providing substantially a ball and socket joint. At the same time that reciprocating motion. is imparted to the guide or guard 7 the knife or blade 8 is fed gradually forward so that its active cutting edge is being constantly renewed to insure the proper trimming of the embroidery edging.

The driving means consists of a shaft 20 with universal couplings 21 connecting it to a shaft 22 having a gear wheel 23 which in turn is driven by a pinion 24 mounted so as to receive movement from a counteracts.

shaft 25 through the medium of a gear wheel 26 and pinion 27. The main driving shaft is vertical and is shown at 28 carrying a worm 29 meshing with a worm wheel 29 whereby movement may be imparted to a shaft or spindle 3O journaled on the bedplate 2, and having a pinion 31 meshing with a gear wheel 32 mounted on a shaft or spindle 33 having a pinion 34 meshing with a gear wheel 35 on said shaft 25.

The movement of the shaft 25 is so proportioned that the feed of the knife is very gradual, and such movement may be transmitted to the knife by means of pinions 36,

37, 38 and 39, shown more clearly in Fig. 3,

which drive a pair of rollers 40 and 41 between and by which the knife blade is fed. The knife blade is wound upon its hub under tension and suitably secured thereto, and as it is. drawn off by the friction rolls 40 and 41, the force of .such tension tends to-keep it wound upon the hub.

The fabric is delivered across the table 3, preferably under tension, and the knife blade 8 as it is reciprocated by the guard or guide 7 outs directly against the embroidered orstitched edge of the edging; such knife cutting on the upper side of the fabric against the beveled edge of a plate 45 mounted on the table 3 and having such beveled edge in absolute parallelism with the edge of the cutting blade. This plate 45, which is adjustably mounted and may have its position regulated through the medium of screws 45; the table being slotted at 47 for the purpose, forms an anvil or shear plate with which the knife blade co- As the work progresses, the main body of the fabric. containing the embroidered edges to be cut may be wound upon a roller 46, while the cut or trimmed edge may pass loosely into a suitable receptacle. Tension may be provided for the roller 46, consisting of a weighted roller 47 and a friction roller 48 adjacent thereto; the friction roller being mounted on a driven shaft 49 and imparting movement to the roller- 47 which is imparted in turn to the roller 46. The roller 48 is driven from the shaft 25 by means of the

pinions

50, 51, 52, 53, 54, 55, 56, 57 and 58, as clearly illustrated in Fig. 3.

I have found that a materially advantageous result may be obtained by having the beveled edge of the anvil or shear plate under suiiicient tension to cause it to engage the knife or cutting blade before any work is introduced; a condition which insures proper co-action of the goods when the blades are introduced. By this means, an automatic or self-regulation of the coacting means, the cutting blade and shear plate, can be effected, and any kind of goods, whether thick or thin, can be accommodated and successfully operated upon. At the same time, the yielding edge of the shear plate will conform to the cutting blade and take up any irregularity that may occur therein; the active edge of the cutting blade and the edge of the shear plate being disposed in absolute parallelism as before described. To this end therefore the shear plate 45is provided with a separable beveled edge 60 hinged to said plate at 61 and held in an elevated position and in contact with the cutting blade by means of springs 62 interposed between the same and the bed or table 3; the latter being recessed to accommodate said springs. Other forms of cushioning or tension supporting means may be employed, if desired. During the cutting operation, this edge yields sufficiently to accommodate the thickness of the goods under operation.

The cutting action is clearly illustrated in Fig. 6, and as the embroidered edge 00 of the fabric to be trimmed is sufficiently stout or heavy, the knife will shear up to the same, cutting in a substantially hori- Zontal plane; the fabric directly at the point of severence being disposed substantially in a vertical plane. In some instances, the entire shear plate 45 may be yieldingly sup ported.

The present machine, as explained, has been devised to cut or trim two strips of embroidery edging at the same time, but it will be understood that I may employ a single set of cotiperating trimming or cutting devices, or a gang of the same, driven in the same or substantially the same manner as herein described.

The knife which I employ is continuous in length, and the object of this is to insure a suitable cutting edge which is uniformly of the same character throughout the length of said knife. Preferably both faces of the strip of material forming the knife are beveled to form this cutting edge. The knife lies between the walls of the guardor guide 7 with. its edge in absolute parallelism therewith and with the anvil or shear plate the guard being cut away at 63 at the point where the knife acts. When such knife is brought into engagement with the fabric, the cutting or trimming of the same from the embroidered edge is assured without any damage to such edge.

I claim:

1. A yielding shear plate for engagement by and cooperation with a horizontally disposed knife reciprocated adjacent to and in line with said shear plate, in combination with said knife and means for reciprocating the same. i

2. A shear plate having a yielding edge for engagement by and cooperation with a horizontally disposedknife reciprocated adjacent to and in line with said shear plate, in combination with said knife and means for r-ciprocating the same.

3. A shear plate having a beveled yielding edge for engagement by and cooperation with a horizontally disposed knife reciprocated adjacent to and in line wlth said shear plate, in combination with said knife and means for reciprocating the same.

i. A shear plate having a yielding edge for engagement by and cooperation with a horizontally disposed knife reciprgcated adjacent to and in line with said shear plate. and means for pivotally mounting said yielding edge to the shear plate, in combination with said knife and means for reciprocating the same.

5. A shear plate comprising a body relatively fixed, and an edge hinged to said body for engagement by and cooperatlon with a horizontally disposed knife reciprocated adjacent to and in line with said shear plate, in combination with said knife and means for reciprocating the same.

6. The combination of a shear plate, a working edge hinged thereto, a horizontally disposed knife engaging and cooperating with said edge and reciprocated adjacent to and in line with said shear plate, and means for yieldingly supporting said edge.

7. The combination of a shear plate, a working edge hinged thereto, a horizontally disposed knife engaging and cooperating with said edge and reciprocated adjacent to and in linewith said shear plate, and springs for yieldingly supporting said edge.

8. In an embroidery cutting or trimming machine, the combination of a work table, a shear plate carried thereby, a horizontally disposed knife arranged to coact with said shear plate and reciprocated ad acent to and in line with said shear plate, and means for supporting the edge of said shear plate in contact with the knife. 7

9. In an embroidery cutting or trimming machine, the combination of a work table, a shear plate carried thereby, a horizontally disposed knife reciprocated adjacent to and in line with said shear plate, and a yielding edge with which said knife coacts carried by the shear plate.

10. In an embroidery cutting or trimming machine, the combination of a work table, a shear plate carried thereby, a horizontally disposed knife reciprocated adjacent to and in line with said shear plate, and a spring supported edge with which said knife coacts carried by said shear plate.

v11. Inan embroidery cutting or trimming machine,the combination of a work table, a shear plate carried by said table, a beveled edge pivotally connected to the body of the shear plate, a horizontally disposed cutting lade arranged in parallelism with the beveled edge of said shear plate and reciprocatedadjacent to and in line therewith, and

springs for supporting said edge in contact I with the cutting blade.

12. In a cutting apparatus for removing waste from embroidered fabric, a straight reciprocable blade, an opposing member to support the fabric parallel to and projecting above the edge of the blade and inclined to the side of the latter whereby a shaving action'is imparted thereto, said blade and opposing member forming a slot of suflicient width to permit only the passage of the unembroidered part of the fabric.

13. In a cutting apparatus forremoving waste from embroidered fabric, a straight blade, an opposing member to support the fabric, parallel to and projecting above the edge of the blade and inclined to the side of the blade, whereby a shaving action is imparted to the latter, said blade and opa posing member formlng a slot of sufficient width alongthe entire blade to permit only the passage of the unembroidered part of the fabric, and means for effecting reciprocation of said blade with respectto the opposing member.

ll. A device of the character described comprising a reciprocable cutter, a stationary: opposing member mounted longitudinally thereof and forming a slot therewith of uniform width through which the back to the cutter to increase or diminish the width of the slot, means to reciprocate the cutter parallel to and longitudinally of the opposing member.

16. A device for cutting embroidery background along the embroidered edge, comprising a stationary member, a knife carrying member movable longitudinally of and parallel to the stationary member, a knife blade mounted on the carrying memher, and an adjustable member mounted on the stationary member cooperating with the blade to form a slot through which the background of the embroidery is passed.

17. In an embroidery cutting or trimming machine, the combination of a work table, a shear plate carried thereby, a knife arranged to reciprocate in line'with and adjacent said shear plate in substantially the same plane as the material operated upon, said knife having its cutting edge horizontally disposed, and means for reciprocating said knife.

18. The combination of ahorizontal Work table, a shear plate carried thereby, a knife having its cutting edge horizontally disposed and arranged to reciprocate in line with and adjacent to said shear plate and to cut in substantially the same plane as the material operated upon, and means for reciprocating said knife.

19. In a cutting or trimming machine for removing waste from embroidered fabric, the combination of means for feeding the fabric to be trimmed, and cutting means for lateral engagement with such fabric to remove the waste adjacent an embroidered edge including a knife reciprocable in substantially the same plane as the material op erated upon.

20. In a cutting or trimming machine for removing waste from embroidered fabric, the combination of means for feeding the fabric to be trimmed, cutting means for lat eral engagement with such fabric to remove waste adjacent an embroidered edge including a knife reciprocable in substantially the same plane as the material operated upon with its cutting edge horizontally disposed, and means for reciprocating said knife.

. in a cutting or trimming machine for removing waste from embroidered fabric, the combination of means for feeding the fabric to be trimmed, cutting means to remove waste adjacent an embroidered edge including a knife reciprocable in substantially the same plane as the material oper ated upon with its cutting edge horizontally disposed, and means for reciprocating said knife, said knife being mounted to move in line diagonally with respect to the material operated upon.

.22. In a cutting or trimming machine for removing waste from embroidered fabric, the combination of a work table, cutting means to remove waste adjacent an embroidered edge including a knife reciprocable in substantially the same plane as the material operated upon with its cutting edge horizontally disposed and mounted adjacent said work table, means for reciprocating said knife diagonally with respect to the work to be operated upon, and means for feeding said work to and from the knife.

In testimony whereof, I have signed my Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C.