US895277A - Hand twine knotter and cutter. - Google Patents

Description

A. LARSON. HAND TWINBKNOTTBR AND GUTTER APP'LIATION FILED SEP'L3, 1907.

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WlNssaEE pjx/ $L` Uni'ijnn STATES "PATENT oFFioE.

ALBERT Liinsov, or wasco',iiji.ino1's.

To all whom it may concern.'

Be. it known that L'Arnnn'r LARsoN, citizen of the United States, residing at Vascc, inthe county of Kane and State of Illinois,.

have invented certain newV anduseful 1miroveineiits in Hand Twine Knotters and futters, of which the following is a specification. 'r

My invention relates to implements designed to facilitate the application of ythe cord used in securing packages.

The chief objects of my invention are to produce a device that will enable the operator to apply a cord4 to a package with unusual rapidity; to provide means for holding the twine during the process of wrapping; to quickly and efectually knot the twine after it has been applied and to furnish means for automatically severing the string subsequently to the knotting operation.

I accomplish the above mentioned results by the use of the implement illustrated in the accompanying drawing which forms a part of this specification, and in which,

Figure i is a side elevation of my package tying instrument showing method of its app ication; Fig. 2 is an end elevation, a portion of the operating lever being broken away; Fig. 3 is a transverse section through the bearing with the gears and knotter removed; Fig. 4 is a transverse section through the base plate and gear bearing looking in a direction opposite to Fig. 3; Fig. 5 is a fravinentary view of the cord tensioning device t ie bearings being shown in section; Fig. 6 is a. fragmentary view showin?v the method of locking the knotter 1pinion Fig. '.7 is a fragmentary view of theuin er side of the base plate to illustrate the jaw o ening cani; Fig. 8 isa plan view of the jaw c osing arm; Fie. 9 is a top plan view of the knotter pir ion; l:Fig: 10 is a' cross-section through the lo. of the operating lever, and Fig-11 is a fragmentary to p plan view of the pawl lever and knife arm. n

Referring to the drawing more in detail the numeral 1.1 indicates a base plate, to which is firmly attached a supporting handle 12, supplied at the free extremity with a iinger ring 13. Placed above said handle, and coacting therewith is an operating lever `14, pivoted to a post 15, and supplied with a thumb ring 16. Near the :front margin of the saidplate 11 is a support or frame 17,

Specification o! Letters Patent.. Application filed September 3, 1907. Serial' No. 391,971.

segment.

HAND TWINE KNOTTER AND CUTTER.

consisting of two posts 18, joined above to support a bearing block 19 for a stud 20 upon Patented Aug. 4, 1908. A l

which is journaled 'mutilated bevel-geara21,

the said stud being secured in position b a set-screw 22.

end of which is received in a socket 25 inthe The. said gear meshes wit i apinion 23 mounted on a spindle 24, the upper block 19, its lower end passing through/fthe. s

base plate 11.

The teeth of the main vdriving gear are f g omitted at spaced intervals, `thus formliwn,

blank portions 26, the periphery of the wheelat these The num er of-teetli in each of the segments thus formed corresponds with the whole number of teeth in the pinion, and the latter willthus be given one complete turn for each tion is received in a notch 28ifornied in the collar or hub 29 of the pinion, and thus locks oints having an increased radius.

The margin'27 of the blank porthe said inion against movement-so long as said blan is in engagement with the notch. The driving gear 1s o erated by me'ansof said lever 14, which is eld in extended posi,

tion by aspring 30. The lever passes across the rear face of the gear to. facilitate its operative engagement successivelv with pins or lugs 32, which project from the rear face of the ear. The said lever will engage one of the ugs 32 when the lever is moved downward and on its return will yield suficiently to ride over the succeeding lug, the rear margin of the lever being provided with an inclined face, as shown in Fig. 10.

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Thev lower end of the spindle 24 is furf nished with an oval shaped head 34, and` through the shaft is passed a clamping jaw 37 of said jaw carries a friction roller 3S which bears upon zin-inclined` arm 3'9 during a part of a revolution of the said shaft, its action being to close tlievaw againstthe beak 40 of the head. The jaw 35 is openedV which rocks on a pivot 3G. The rear portion through the engagement of its rear portion 37, by the inclined margin of a sleeve 41 which surrounds the spindle 24 as it leaves the undei-side of said plate 11. The edge of said sleeve: is inclined sharply downward, as shown at 42, to engage the rear end of the jaw and bevond this is an abrupt shoulder 43 which quicklyv releases the jaw, as the spindle rotates, and affords opportunity for the arm ics 39 to press the end 37 intheopposite'direc- .ion at the proper time to close the said jaw.`

This mechanism carri/d by the lower end of the. spinde. 34, consti acting with the knot: and operatedbby the lever A is a tension device which consists of a wheel 44, mounted between posts which depend from the plate 11. The wheel 44 has spaced ltleeth 45, and is loperated by a pawl Lt6,"pass1ng through a slot 1n the base plate 10 held'by a spring 4G* and provided wit 1 an arm 47, )ivoted at one end in posts 48, the other end of the pawi being projected across the path of the operating lever. A coiled spring 49 holds the arm 47 in its initial position.

A cord severing means is furnished .by a knife 50 provid ed with a spring 50l and lhaving an extension 51 which crosses the path of the operating lever, but at a lower levelthan the tension operating arm so that the actin n of the knife will be delayed to the proper moment, which is subsequent. to the operation of the tension wheel.

The mani mlation of the device to facilitate the ap ication of a cord to a package is as follows: iihe operator fakes the implementjin his left hand, the thumb enea inf` the rinr -16 of the lever 14 and tsio or more inUers the ring 13 of the handle il?- As an init-itil moveposts/15 and the tooth ment it is necessary to attach the free end of the cord 51 to the tension device which is Idone by placing the end of the cord in the notch 52 formed between the front margins of the members and the adjacent tooth, and turning the tension want-i one step by bringing the lever downward towards the' plate, through the action of :he left. hand which is gras )inv the levers. By this means the tootli which lies in frz-nt of the cord will carry a portion between-the posts, and the bight thus formed will be ciamped between said shown in Fig. 5. The cord will now be seid irmly, and the operator-'seizes the slack portion a of 'he cord which lies` beyond the tension f .-.eel, and drawing' it towards .self ma .s a single turn about the beak of the lz otter. 'lhe cord is then passed :Ls many times as desired about .the package 53 and another turn is taken .about the beak and the string then carried inward to engage the notch 52 in the tension device. The operator then closes the .left hand thus reveiving the driving gear `21 to operate the tension wheel which grasps the portion of cord las; placed in its notch; to

rotate the knotters, to scc-ure the cord, and,

. j turns vwill be carried te lastly, to sever the cfg-:4i by the action of the l knife 50, these move-Vents following each other in proper time sequence. The action of the knottirw mechanism described more in detail is as .i t" .-is the pinion 23 is revolved, the bei.. er' the knetter about which the cord has i en given a couple of se left about the axis tures the knetter. Co-

of vthe-spindle, until approximatelya half approaching the parallel cords I stretched .between 4the said beak and the tension wheel where they are clamped.. At this moment, the end 37 of the jaw engages the incline 42 of the sleeve il and the said jaw is opened. -is it moves onitenffages the said portions b of the cord and at this mint the movable jaw is released by the shoulder 43 and .the end of the jaw is engaged and closed firmly upon the cori held therein by means of the arm 3,9. The lever Mhas now reached the limit of-its downward excursion, the knife 50 has severed the cords -b, and the knotting o eration is completed by giving the device a s arp quick jerk to the left which will dislodge the turns of cord about the beak and the loops thus formed will be settled into a firm knot about the ends which are`still held in the jaws, having been pulled through the said loops as the instrument is jerked to the left. It'V this sudden movement is not sufficient to relieve the endsfrom the jaws a more forcible e`ort may be made, or-the jaws canbe opened by operating the lever 14. The end of the cord attached to the source of sup ly will still be held in the tension clamp an the device will' be ready for another operation. l

Any' form of knotting device may be employed, such, for instance, as that in common use in self binding harvesters;

Having thus described my invention, what I claim as new is l v 1. In a device for the purpose specified, the combination with a cord knotting device, and an operating lever, of tensioning means cooperating with said knotting device, and means for severing the cord.

2. In a cord manipulating device, the combination'with a knotting device, of means for intermittently operating said device, a tensioning means cooperating with said knottin0r device, and-means for automatically severing the cord.

3. In a cord manipulating device the combination with a knotting device, of o erative means for "aid knot-ting device, sai means consisting of a mutilated gear, an operatine i revolution has been made, and the beak is ing a supporting plate, knotting mechanism, Y

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