US1487318A - Rug builder - Google Patents

Description

March 18', 1924: 1,487,318

H. ,1. DE FOREST RUG BUILDER Filed Aug. 4, 1922 2 SheeLs-Sheet 1 In aentflr:

Jzkzrve y J DeFarest,

March 18 192410 11,487,318

H. J. IDE FQREST 'RUG BUILDER Fi-led Aug. 4, 1922 2 Sheets-Sheet 2 Patented Mar. 18, 1924..

UNITED STATES PATENT OFFICE.

KARVEI JAMES DE FOREST, PORTLAND MAINE, ASSIGNOB T0 DE FOREST PROD- UCTS COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

RUG ammonia.

Application filed August 1-, 1922. Serial No. 579,894.

' To all whom it may concern:

Be it known that l, HARVEY JAMES DE FOREST, a citizen of the United States, and a resident of Portland, in the county of Cumberland and State ot Maine, have invented certain new and useful Improvements in Rug Builders, of which the followingjs a specification.

This invention relates to a device for producing a design .upon carpets or the like.

The prlmary object of my invention is to I produce a device of the character described which will, through suitable mechanism,

produce a design by means of upstanding loops on any desired material, but preferably a material having a comparatively large mesh.

1n accomplishin this result I work upon the reverse side 0 the material, producing the desired loops upon the other side, so that when the material is turned over the design is apparent, and due to the upstanding loops a-wear resisting carpet or rug light, strong and compact, which will require the least amount of effort to operate, and which will be positive in its operation.

These objects 1 accomplish 'by providing a device including a, frame upon which is mounted the operating motor which actuates through suitable gears-and the like a reciprocating needle, the same motor also actuating in a reciprocal manner what 1 term a retainer which moves in proximity to the needle but in a reverse manner. By means of these instrumentalities a loop is produced on the reverse side of the material by a complete reciprocation or the needle, upon which action the retainer is forced down between the mesh of the cloth to the bottom of the loop, and holds the same while the needle moves upwardly, toe?- wardly and downwardly through the material to make a second 100 At the end of its downward movement t e retainer makes another reciprocation from the bottom of the loop which it is holding up through the cloth and down again beside the needle to a point equal to the length of the previously formed loop and the cycle then repeated.

I have'illustrated certain instrumentalities whereby the above objects are accomplished, but it is to be understood that I do not wish to be limited to the particular combination and construction and arran ment of parts illustrated, as obviously mo?- fications will occur to those skilled in the art which may accomplish the desired results. I have shown 1n the drawings the most preferred embodiment of which I am now aware, but this has been illustrated to .clearly illustrate the p specification.

In the drawings:

Figure ,1 is a sideelevation of one form of my device.

Fig. 2 is a view along line 2-2 of Fig. 1.

Fig. 3 is a plan view showing motor re moved.

Fig. 4: is a view alon lines 4-4 of Fig. 1.

Fig. 5 is a detail 0 the cam and associated mechanism.

Fig. 6 is a detail of 'the needle tube and needle.

Referring now more particularly to these drawings, 1 provide a is suitably mounted a 'inotor 2 electrically connected to a suitable source ofenergy and having a rotatable shaft 3 supported in bearing 4 and provided at its end with a gear 5. Journaled within the frame 1 at the side thereof isv an actuating ear 6 engaging the small gear 5' and which is provided with projections 7 for a purpose more fully hereinafter described. Suitably mounted upon the axis of the gear 6 is a member 8 having a cam surface 9 and provided with a in 10 serving as an axis for a link 11. In t e extremity of the cam portion 9 1 provide a pin 12 movable throug the member 8 so that it may project on either side of the member 8, as desired. One extremity of the pin 12 is provided with a circumferential recess 13 which is engaged by a spring 1 1 secured to the member 8, as at 15.

Vertically mounted within the frame 1 is a needle tube 16 mounted for rotation in the frame and having secured thereto collars 17.

rame 1 upon which The link 11 is provided with an annularmember 18 encircling the needle tube 16 between the collars 17. A horizontal portion engaging the link 11 is secured thereto as by nut 19. It will thus be seen that link 11 is freely rotatable with the member 8. At the same time the needle tube 16 is rotatably held by the member 18.

A handle 20 pivoted to the frame as shown in Figs. 1 and 2 is provided with an angular portion engaging a bearing member in the frame, and is provided beyond this part with a substantially right angular portion of tapered form. The pin 12 under action of the spring 14 tends to be projected on the side of the cam 9 nearest the gear 6. While in this position the pin 7 on the gear 6 will engage the pin 12'to cause rotation of the mechanism. When it is desired, however, to stop the mechanism from rotating it is merely necessary for the handle 20 to be moved so that the tapered end which extends between the cam 9 and the gear 6 enters between the end of the pin 12 and the gear 6, with the result that the pin 12 is retracted against the tension of the spring 14.

It is noted particularly in Fig. 1 that there is a suflicient extent-of that portion of the handle within the bearing to permit'a certain axial movement in relation to the bearing which is sufficient to retract thepin 12 far enough to clear the pin 7 The weight of the handle 20 serves to keep the tapered portion in the position which will prevent the pin 12 from beingprojected to make contact with the pin 7 but when the handle 20 is lifted the natural tension of the spring 14 will project the pin outwardly to engage the pin 7.. W

Encircling-the lower portion of the needle tube 16 is al'retainer lifter 21 which is provided at its upper portion with an outwardly flanged integral cap 22 and at its lower portion with a ring 23 to which is hinged the retainer arm 24 having attached at its lower end the retainer proper 25, the function of which will be later described. A bearing 26 suitably attached to the frame 1 is provided for the retainer lifter 21. A knurled disc 27 is provided encircling the retainer lifter in order to rotate the same and the needle tube as desired, and a pin 2'8 extending horizontally from the disc 27 through slot 28 in the retainer lifter into a slot in the needle tube secures these members together and insures simultaneous rotation of these parts. This pin 28 allows independent vertical movement of the needle tube 16 and the retainer lifter 21, but upon rotation of the disc 27-these parts rotate together.

Attached to the side of the frame 1 below the actuating gear 6 is an elongated socket 29 within which is' a reciprocable pin 30 which is located beneath the part 8 but off center therefrom. The lowermost end of the pin 30 is inproximity to a lever 31 fulcrumed at 32 in a support 33 mounted upon the frame, the lever 31 having a semi-circular portion 34 with iii-turned ends 35 engaging beneath the collar 22 of the retainer lifter, and which moves the same vertically when the pin 30 is moved downwardly against the upper portion of the lever 31.

The material with which the design is to be worked is indicated at 36 coming from any suitable source and located when pass ing through the mechanism inside of the needle tube 16 which prevents the material from becoming soiled or tangled by contact with any moving parts. This material 36 exits from the lower portion of the needle tube 16 and is threaded through an angular eye 37 in the needle 38, said needle being attached to the lower extremity of the needle tube, as at 39. The needle is longitudinally grooved as at 40 and 41, the groove 40 being of a greater depth than the groove 41 for a purpose specified hereafter.

"The frame 1 is provided with an extension 42 attached to a circular part 43 which rests upon the goods being worked, the portions 42 being provided with hand grips 44 which the operator grasps as he moves the entire device over the goods. A plate 45 encircling the retainer lifter 21 bears against the retainer ring 23 under action of the springs 46 attached to the plate and the extension 42.

The operation of the device is as follows:

The motor 2 is started whichcauses the free rotation of the actuating gear 6 on its axis. The handle 20 is now'moved to cause the movable pin 12 to project from the gear side of the member 8 and upon such action one of the projections 7 engages the pin 12 which causes rotation of the member 8. This rotation causes through the link 11 a reciprocal movement of the needle tube 16 and attached needle, which gives the desired stitching effect.

As the part 8rotates, the cam portion 9 engages the reciprocal part 30, causing the depression of the upperpart of the lever 31, which in turn causes upward movement of the retainer lifter 21 because of the engagement of the iii-turned ends 35 with the collar 22. Such action causes an upward movement of the retainer proper 25.

It will thus be seen that the rotation of the member 8 causes opposite movement of the retainer and the needle and when the former is in its extreme upward position the needle is in its extreme downward position.

As the part 8 revolves the needle is driven down through the material being worked, and as it reaches the bottom of its stroke the cam portion 9 engaging the pin 30 causes an upward movement of the retainer, which moves to its extreme height, and as soon as it clears the top of the cloth it is swung a ainst the needle under action of the spring 4 andv then downwardly alongside the needle under action of the sprin s 46. The retainer remains in this osition olding the material carried throu .the work by the needle, while the nee le arises and falls again a short distance awayto form a new loop; It will thus beseen that the retainer prevents losin will be apparent that the retainer performs all of its up and down movement during the period in whlch the needle is ceasing, to go downward and preparing to move upward. In this way,'the loop is of uniform length and shape.

The distance between loops is entirely governed by the pushing movement of the operator in moving the machine over the stationary surface of the material being worked. Since the retainer 25 should always be in the rear of the needle, according to the direction in which the machine is moving, ro-

the 'loop already formed while the need e is making a new one. It

at, fo ded, round,-

What I claim is:

1. A device of the type described including a frame adapted to rest upon and move over the goods being worked, freely rotatable needle carrying mechanism carried by said frame and means also carried by said frame for reciprocating said mechanism.

2. The device of claim 1, said needle carrying mechanism including a tube, said needle being secured thereto.

3.v The device of claim 1, with a thread retainer cooperating with said needle to form loops in the goods upon which the device operates, means to reciprocate said thread retainer, said means including a tubular element surrounding the needle carrying mechamsm and means for reciprocating said thread retainer out of time with said needle carrying mechanism.

4. The device of claim 1, said needle carryingmechanism reciprocating means in cluding a rotatable cam, a retractable pin therein adapted to engage means to cause rotation of said cam when the pin is in one position, and means connecting said cam and said needle carrying mechanism, said needle carrying mechanism being mounted therein in a rotatable manner.

5. The device of claim 1, with a thread retainer cooperating with said needle to hold the loops formed in the goods worked upon, and means to freely rotate said needle carrying mechanism and said thread retainer simultaneously.

' In testimony whereof, I aflix my signature.

l HARVEY JAMES DE FOREST.

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