US1071095A - Embroidering-machine. - Google Patents

Description

M. SCHOENFELD. EMBROIDBRING MACHINE.

APPLICATION FILED FEB. 16, 1910.

Patented Au 26, 1913.

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APPLICATION FILED FEB. 16, 191.0.

Patented Aug. 26, 1913.

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m Maw (@M M. SGHOENFELD. EMBROIDERING MACHINE.

- APPLICATION FILED FEB. 16, 1910.

Patented Aug. 26, 1913.

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EMBROIDERING MACHINE. APPLICATION IILED IBB. 16, 1910.

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MORRIS SGHQENFELD, 0E RQWQHZ CH, SWITZERLA D- EMBROIDERING MAOHINE.

specification of Letters Patent.

Patented Aug. 26, 1911.3.

Application filed February 16, 1810. aerial No. 544,198.

To all whom it may concern:

Be it known that I, MORRIS SGHOENFELD, a citizen of the United States, and a resident of Rorschach, in the Canton of St. Gall, Switzerland, have invented certain new and useful Improvements in Embroidering- Machines, of which the following is a specification.

My invention relates to improvements in embroidering machines. of the large type wherein several hundred needles are adapted to operate simultaneously upon a fabric stretched upon a tambour frame, to produce embroidery.

Heretofore machines of this type have been constructed -with alongitudinal beam of great length to support the'needle bars throughout their length, and where two rows of-needles have been used two such beams have been used in thefront of the machine, while two corresponding beams have been used to support the shuttle mechanisms throughout, at the rear-of the machine, making four beams in the. case of a double row of embroidering tools. Such machines have attained a length of thirty feet, which, owing to the great weight of the operating parts, the shocks incident thereto and the fact that the beams mentioned received the weight throughout and were themselves supported at the ends of the machine, necessitated the use of very heavy beams. Owing to the character of the structures these large longitudinal beams were so disposed in order to support the working parts, that they obstructed the view of the embroidery surface; and it was found impracticable to increase the embroidery devices beyond two rows owing to the great weight of the increased number of supporting beams and because the operators could not see enough ofthe embroidery surface to properly follow the work of the machine and they could not reach the parts near the fabric for manual attention owing to the obstruction by the heavy beams. I have overcome these objections and have made it possible not only to construct machines as long and even longer than heretofore, but to also increase the number of rows of embroidering devices, arranged one above the other, whereby the output of a single machine may be doubled and trebled, and at the same time giving a clearer view of the embroidery surface, while making'tho machine more rigid and more able to resist shocks.

time my invention makes it possible to preserve proper uniformity in the distribution of operating force to cause the mechanisms throughout the machine to operate evenly and uniformly.

. My present invention embodies the frame of the embroidering machine and various embroidering devices, though the preferred form of frame construction and the. broad claims therefor in its structural features. are included in my U. S. Letters Patent No. 1,024,911, dated April 30, 1912.

I have shown herein various mechanisms such as needle mechanism, shuttle mechanism, etc}, it being understood that the principles thereof may be utilized for operating other embroidering tools.

' My improved mechanism enables me to avoid the cumbersome frame structures heretofore used and to increase the number of embroidering tools arranged in vertical rows and provide uniformity in operation throughout and I have shown so much of a complete machine as is necessary to illus trate the embodiment of my invention in the preferred form; and it is to be understood that many features of my present invention are not only advantageously employed in the entire arrangement herein shown, but are susceptible of separate use. So far as the mechanisms herein are concerned they are shown embodied in a frame of new and important construction wherein they are of great advantage though they are susceptible of use in other frame constructions.

In order to secure uniformity in operation of the many hundreds of needles, I have provided a number of long needle bars arranged one above the other (in the present showing there are land 5) which are all connected with each other to secure uniformity and rigidity, preferably by end frame members, and preferably in such a way as to form a series of parallelograms of the several needle bars and their coi'inecting parts. This forms a frame structure of the needle bars, preferably a rigid one, causing all parts thereof to be moved as a unit, to operate the needles in and outof the fabric. I have employed a simple and eliicient means for operating this needle bar arrangement to cause iuniformity in the Operation throughout the length and height and the. operating parts are preferably connected to operate upon the members which form the At the same i connections between the several needle bars.

The connections between the needle bars are preferably in the nature of vertical frame members connected with the several needle bars preferably at their ends and duplicated at various intermediate places throughout their length; and which connecting members I have mounted upon the frame structure to be movable laterally thereof and to cause the weight of the needle bars, etc., to be taken up by the frame structure at various intermediate places without materially obstructing the embroidery surface.

The frame elements of the embroidering machine are disposed above and below the embroidery surface to leave a clear space for a view thereof, and to properly support the entire mechanisms without the objections met with in previous constructions. The mechanism for operating the needle bars includes a number of preferably upright oscillating shafts which receive their operating force from a common shaft disposed longitudinally of the machine, which uprightshafts I have so connected as to operate at the upper and lower parts of the needle bar frame to secure uniformity of movement throughout.

The full embodiment of my invention also includes features of adjustabilit-y whereby the several needle bars can be vertically adjusted to bring them in various positions in relation to each other to cause the rapport rows of embroidery, viewed in a vertical di rection, to be formed more or less remote from one another, thereby avoiding the loss of embroidery surface which heretofore could not be utilized when making striped patterns. ltn this way I am enabled to provide a fabric with the embroidery varying a thereon to suit the demands, asin the case of handkerchiefs, scarfs and such like.

Furthermore my invention embodies a novel shuttle mechanism which may be ad vantageously employed in connection with my other improvements, and which may be adjusted in vertical relation to correspond with the vertical adjustment of the stitching mechanism. The shuttle mechanism is disposed at the rear of the machine, behind the I fabric, and is simple in construction and secures uniformity of operation throughout the length of the machine, with the employment of very few parts.

Many other advantages will appear in the detailed description of my invention hereinafter.

In the drawings forming a part, of this application, Figure 1 is an elevation of one end of an embroidering machine, taken from the front, and showing the embodiment of a part of my invention in the preferred form, Fig. 2 is a similar view of the opposite end of the machine, Fig. 3 is a cross section showing the front half of the embroidering machine,

' Figs. 4 and 5 are views similar to Figs. 1

and 2, showing a modification of some of the features of the mechanism, Fig. 6 is a longitudinal section, showing oneend of the embroider-ing machine, being a showing of the shuttle mechanism as viewed from that side near the fabric, Fig. 7 is a horizontal sectional view showing the connection of the operatingmechanism with the needlabar frame, Figs. 8 and 9 are diagrammatic views illustrating the needle bar frames, the latter showing the modification corresponding with the modified structure shown in Figs. 4 and 5, Fig. 10 is a sectional view showing one method of adjusting vertically, certain operating parts, Fig. 11 is a cross section of the shuttle track, showing the shuttle and shuttle drive, Fig. 12 is a sectional View showing the attachment of the tension roller and take up supports to the stationary frame, Fig. 13 is a similar view showing the attachment of the needle bar supports to the main frame, and Fig. 14 is a sectional view, taken on the line 14-14 of Fig. 13.

The embroidering machine structure to which I have shown my invention applied and which I prefer to employ in connection with my present invention comprises end standards 1 and 2, disposed at opposite ends of the machine which are connected at the top and bottom by longitudinal bea1ns3 and 4 in the front of the machine and similar beams 5 and 6- in the rear which are preferably of'commereial forms of metal and disposed above and below the embroidery surface, and forming, with the end standards, the embroidering frame structure. The frame may include such other parts as may be necessary for various objects, but sufficient is here shown to illustrate the use of my present invention. In the present showing these longitudinal beams carry the weight of the various mechanisms, but they are not. the same as the beams of former constructions referred to herein.

Upon the embroidering machine frame are .mounted certain upright frame members, some of which are fixed, while others are movably mounted and form part of a reciprocatable frame. The upright frame members 7 and 8 arranged between the beams 3 and 4 at each end of the machine may be duplicated throughout the machine as many times as may be desired to reduce the strain upon certain operating parts, which they support. I have shown the shafts 10 of the tension rollers 9 mounted upon these frame members, preferably im mediately forward of the needle bar-stand the take up shafts 11 arealso journaled in the same frame members and preferably in front of the tension roller. The take up shafts 11 are'provided with the usual arms 12 which carry the take up bars 13, the purpose of which, i take as is well understood, is to devices. 7 I have shown theshafts 11 of the take 15 frame of the needle bars and their upright might be considered stationary mechanisms,

mounted on the immovable frame members,

that is, they do not move to and from the fabric, but simply rock or turn upon their shafts.

Longitudinally of the machine and preferably journaled in the end standards thereof is a power distributing shaft 14, which operates the various mechanisms throughout the machine, preferably through the instrumentality of cams placed along the shaft which operate upright transmittmg up extending beyond the upright frame sections 8, where they are provided with an arm or lever 15, which is connected with an arm or lever 16 carried upon an upright oscillating shaft '17 which latter is journaled in journals 18 on the upper and lower longitudinal beams. The shaft 17 has an arm 19 carrying a roller 20 which engages the cam'21 on the shaft 14, by which the shaft 17 is oscillated and the operations thereof transmitted to the take up shafts.

- be parallel It is understood that where the embroidery mechanism is duplicatedin vertical rows as in the present case five rows being shown, the connections between the shaft 17 and the various take up shafts are duplicated throughout the shaft 17. A spring 22 on the arm .19 and connected with a part of the frame retains the roller oh the arm 19 in continuous'contact with its cam 21-.

To carry out the general scheme of" vertical adjustability the tension and take up are made adjustable upon the uprights7 and 8 and their connections with the shaft 17 made adjustable. The blocks 24 in which the shafts of the tension roller and take up are journaled are adapted to .be adjusted upon the uprights 7 and 8, by the bolts 23 engaging in the slots in the uprights.

In Fig. 10 I have shown one means for adjusting the connection of the arms 16 along the shaft 17 to correspond with the adjustment of the tension and take up. The screw 25 forces a spring 26 into engagement in a slot 27 in the shaft 17 and by loosening the screw 25 the arm 16 may be adjusted along the shaft 17 and this construction is carried out upon each of the arms 16.

Various other mechanisms having a stationary position'may be arranged upon the uprights 7 and8 as desired, without interferingwith the mechanisms described.

The next feature which I will describe and which is of the greatest importance in the present case, relates to the needle bar operation.

The needle bars 28 which carry the needles 29, secured thereon in any well known manner, are arranged one above the 1 other in vertical rows, all of which should throughout, and the various needle bars in the construction shown in Figs. 1, 2, 3, etc., are connected with upright members 30, 31, at their ends, which members are so mounted that they can be reciprocated laterally of the machine to move the needle bars and cause the needles to stitch the fabric 32, which is disposed longitudinally of the machine upona tambour frame and operated in any well known manner. The upright members 30, 31, are shown at opposite ends of the machine, and it is understood that they may be duplicated at various intermediate places throughout the length of the needle bars to make a firm membersand take up their weight. Preferably the upright members are vertically disposed and'parallel with each other, and to which the needle bars are rigidly connected to form a substantial movable frame, in the nature of a parallelogram, thoughunder.

the broad spirit of myfinvention variations in the connections may be made. It will be apparent that it is my preferred construct1on wherein these same upright frame 'members which connect the needle bars also carry their Weight throughout their length and are themse ves supported by the frame of the embroidering machine.

l In the construction herein shown the upright movable frame members are supported upon the frame structure by the following means The longitudinal beams 3 and 4 are provided with journal sockets 37, 38, formed 1n pairs 1n which are secured lateral shafts 35, 36; and the upright frame sections 30, 31, have sockets 37, 38, at bottom and top wh ch engage over the shafts 35, 36, and by which the members30, 31, are guided in their lateral reciprocating movement toward and from the fabric.

The movable frames composed of the needle bars and theirconnections are adapted to be reciprocated by a simple mechanism which will preserve proper parallelism at all :tom and top respectively,and the shafts are oscillated by power derived from the shaft 14. The upright shafts are provided at their lower ends with arms 43, which carry a roller '44, engaging with the cam 45 on the shaft 14-andthis cam is so shaped and proportioned as to give proper motion to the needle mechanism. The arms 43 are held in continual contact with their cams by springs 46 which are secured thereto and connected with a part of the machine frame to exert a pressure on the arms and retain their rollers in continual contact with their cams.

The shafts 39 and 40 are disposed upright, preferably vertical, and the motion of these shafts is transmitted to the needle bar frame. The arms 4'? and 48 on the lower and upper parts of the shafts 39, 40, are fulcrumed at as to ears or lugs on the movable frame members 30, 31, whereby the oscillations of the shafts 39, 40, will reciprocate the frame members 30, 31, upon their shafts and laterally of the machine, whereby the needle bar frame will be moved to and from the fabric, the entire needle bar frame moving regularly at all parts, in perfect parallelism.

It will be understood that to secure proper rigidity in the needle bar frame and proper movement, the needle bars during the machine operation should be connected with the upright connections, but in order to carry out the vertical adjustable feature of my invention I have connected the needle bars to the upright frame members in such a way that the needle bars may be connected at different points on the connecting members; As will be seen in Fig.2, the needle bars are clamped against the inner face of the upright 31 by a block 50, which lies on the opposite side of the flanges ofthe upright, a bolt 51 passing through the block 50 and into a depending portion of the needle bar. By loosening the bolts 51 the needle bars may be arranged at different positions upon their upright connections, whereby they may be placed at varying .distances apart for the object herein set forth.

The next feature of my invention relates to the shuttle mechanism which is very advantageous in carrying out the previous features of improvement and which embodies previously described mechanisms.

The shuttle mechanism is shown in Fig. 6. certain bread principles contained in the The embroidering machine frame is pro vided with a plurality of longitudinal shuttle tracks 53, which are secured to the upright supporting standards 54 disposedat the ends of the machine and at various intervals throughout the machine, as desired;

the standards 54 being secured between the rear longitudinal beams Sand 6. The shuttle tracks 53 are formed with two grooves 55, 56, the latter being defined on one side by a removable plate 57, having needle apertures 58. In the groove 55 which is parallel with the groove-:76, I have placed a longitudinal bar 58 having lateral fingers 59 which engage on each end of the shuttles 60, traveling in the groove 56. It will be apparent that a shuttle track and shuttle mechanism is provided for each needle bar so that where there are five needle bars there should be five sets of shuttles operating longitudinally in five shuttle tracks. The frame of the machine near the rear is provided with lugs or sockets 61 at top and bottom,

forming journals for an upright shaft 62, which latter receives an oscillating movement, preferably from the shaft 14, whereby proper uniformity of movement between the needle mechanism and shuttle mechanisms will beobtained.

The shaft 62 has an arm 66 on its lower end carryin a roller 67 which is retained in contact w1th a cam 8 on the shaft 14 by means of a spring 69 and the rocking of the arm 66 by the cam 68 oscillates the shaft 62.

'Ihe'shaft 62 is provided with arms 63 which I have shown carried by collars 64:

that surround the shaft and which are preferably adjustably secured to the shaft preferably by the same device as shown in Fig. 10. A. set screw 25 forces the block 26 into engagement with the bottom of the groove 65 in shaft 62, to hold the collar 64 at any desired position along the shaft and the block lying in the groove will prevent the collar from turning on the shaft. There is an arm 63 provided for each shuttle mech anism and links 70 fulcrumed to the arms 63 connect the latter with the shuttle drive bars 58. The revolution of the shaft 14 causes the shaft 62 to be oscillated, which, acting through the several arms 63 and the connecting links 70, causes the various shut tle drive bars to be reciprocated in their tracks across the various needles, to lock the stitches. As previously explained the various arms 63 are vertically adjustable along the shaft 62 and I have made the shuttle tracks vertically adjustable to correspond with the adjustment of the needle bars. The depending plates 7 2 of the shuttle tracks are clamped to the standards 54 by bolts 73 which engage in slots 74 in the standards. By loosening these bolts the tracks can be adjusted upon the standards to make them correspond in position with the several needle bars.

In the lower portion of Fig. 6, I have shown a different form of ad ustment for the shuttle tracks. Herein the socket 75 is threaded and through the same the screw shaft 76 engages and by turning the shaft 76dthe tracks are adjusted along the standar s.

In Figs. 4, 5, and 9, I have shown a needle mechanism construction which, though of the same general character as the previous device, is somewhat different in details. In this construction the standards 77 are pro vided with sockets 78 which carry -the lateral shafts 7 9 which correspond in function with the shafts 35 and 36. Instead 'of a single set of connecting units for the several needle bars I have shown the latter connected in pairs by connecting bars 80, which are fulcrumed to reciprocate upon the shafts construction. The oscillations of the shaft 81 .are caused by the connections with the shaft 14- sim lar to the revious construction and the oscillations o' the shaft 81 transmits a reciprocating movement to the needle bars through the arms 82 and their connections with the bars 80. The needle bars in thls case are adjustable in pairs through the adjustment .of the members 78 upon the standards 77. The bolts 84 which secure the blocks 78 to .the standards 77 are adjustable in the slots 85.

I believe my present invention to be broadly new and susceptible of embodiment in various forms and I do not Wish to be limited in the scope of my invention to the precise construction herein shown.

By forming a rigid movable frame of a plurality of the needle bars they are more perfectly operated. in unison and my improved operating proper parallelismin the needle bars, and the invention permits of a greater multiplication of the number of needle bars and therefore of an increase in the output of the machine. Furthermore this is all possible in a machine wherein the operator and attendants can see the embroidery surface and'the entire machine is more rigid and substantial. By distributing the power from the common shaft to the variousrows of sewing mechanisms they are moved in ')roper unison or synchronism as the case may be, and by distributing the power by upright driving mechanism the powermay be distributed to the mechanisms at various places along the machine without obstructing the embroidery surface and permits of the elimination of the heavy longitudinal.

beams from a position where they would obstruct the view of the embroidery surface. Having described. my invention What I claim is:

1. An embroidering machine comprising a rigid stationary frame, longitudinal bars, embroidering members mounted thereon,

said bars being arranged in superposed rows,

upright supporting members arranged at intervals along themachine, rigidly connecting said bars longitudinally and vertically to form a rigid movable frame. stationary longitudinal beams arranged above and below said bars, said uprigl'it supporting members being movably supported upon said beams to reciprocate laterally of the machine and means operating on each of the upright supporting members'to reciprocate said movable frame.

An embroidering machine comprising a rigid stationary frame, including end standmechanism preserves a 1 shafts having ards, longitudinal bars, embroidering mem bers mounted thereon, said bars being arranged in superposed rows, upright supporting members rigidly connecting said bars longitudinally and vertically to form a movable frame, stationary longitudinal beams arranged above and below said bars and connecting said end standards, means for supporting said upright supporting members on said beams and guiding the same relatively to the stationary frame so that the movable frame will reciprocate laterally of the stationary frame.

3. An embroidering machine comprising a rigidstationary frame embodying end standards and longitudinal beams rigidly connecting the end standards, longitudinal bars, embroidering elements mounted there on, said bars being arranged in superirnposed rows, upright supporting elements rigidly connecting the said bars longitudinally and in vertical relation to form a movable frame, said beams being arranged above and below said bars, and means for supporting said upright supporting elements on said beams and guiding the same relative to the stationary the stationary frame, other embroidering elements arranged in superimposed rows, upright supporting elements rigidly connected between said beams and arranged to connect said latter rows of embroidering elementslongitudinally and in vertical relation.

4. An embroidering machine comprising a rigid stationary supporting frame, superposed longitudinal bars, embroidering elements carried thereby, upright connecting means uniting a plurality of said bars in a movable frame, said movable frame being supported on the rigid frame through said upright members, and upright shafts adapted to operate on the upper and lower portions of the movable frameto reciprocate the latter.

5. An embroidering machine comprising a rigid stationary supporting frame,'superposed longitudinal bars, embroidering elements carried thereby, upright connecting means uniting aplurality of said bars in a movable frame, said movable frame being supported on the rigid frame through said upright members, and upright oscillating arms acting on the upper and lower parts of the said movable frame to reciprocate the latter.

6. An embroidering machine comprising a stationary frame, a plurality of superposed longitudinal bars, embroidering elements carried thereon, means uniting the said longitudinal bars in a rigid movable frame, said movable frame being supported by the stationary frame, a longitudinal power shaft and a plurality of upright oscillating shafts operated from the power shaft and means I frame whereby the movable frame will reciprocate laterally of whereby the movable frame will be, operated by the upright shafts.

7. An embroidering machine comprising a ri id longitudinal frame, longitudinal needle ars, needles mounted thereon, movable upright supporting elements uniting -the needle bars in a rigid movable frame, upiper and lower longitudinal beams disposed ree of the embroidery surface, upon which said movable frame is supported, other embroidering elements, upright supporting elements therefor, mounted on said beams, and means for operating the embroidering devices.

8. An em-broidering machine comprising a stationary rigid frame, embroidering elements mounted on superimposed longitudinal bars, movable upright supporting elements on which said longitudinal bars are vertically adjustable, longitudinal upper and lower stationary beams disposed to be free of the embroidery surface, said upright supporting elements being supported by said beams.

9. An embroidering machine comprising a frame, a plurality of longitudinal shuttle tracks adjustably mounted on said frame, shuttle mechanism embodying shuttles and a shuttle drive for the several tracks, and an upright shaft having a plurality of elements for operating the several shuttle drives and adjustable on said shaft, whereby the several rows of shuttles may be arranged to operate more or less remote from each other.

10. Anembroidering machine comprising a frame, a plurality of longitudinal shuttle tracks adjustably mounted on said frame, shuttle mechanism embodying shuttles and a shuttle drivefor the several tracks and an .upright shaft for operating the shuttle mechanism, having adjustable collars carrying arms and links connecting said arms with the shuttle drives.

11; An embroidering machine, comprising a stationary frame, embodying end standards, upper and lower longitudinal beams disposed to be free of the embroidery surface, upright supports mounted between said beams, other upright supports movably mounted between said beams, embroidering elements mounted in a plurality of longitudinal rows on the stationary upright supports, other embroidering elements carried on longitudinal members, which latter are secured to the movable upright supports to form a movable frame, and separate operating means for operating the embroidering devices on the stationary and movable sup ports.

Signed at St. Gall, in the Canton of St. Gall, Switzerland, this 3rd day of February, 1910.

MORRIS SCHOENFELD.

Witnesses ALBERT PHILLIPS, RANDALL A'rnmson.

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