US934389A

US934389A - Knotter.

Info

Publication number: US934389A
Application number: US46345908A
Authority: US
Inventors: Britton E Byrd
Original assignee: BYRD Manufacturing CO
Current assignee: BYRD Manufacturing CO
Priority date: 1908-11-19
Filing date: 1908-11-19
Publication date: 1909-09-14
Anticipated expiration: 1926-09-14

Description

B. E. BYRD.

KNOTTER.

APPLIOATION FILED Nov.19, 1908..

v 934 1J38@a Patented Sept. 14, 1909.

Z SHEETS-SHEET 1.

B. E. BYRD.

KNOTTER.

vAPPLICATION FILED Nov. 19, 1908.

' 934,889. Patented sept. 14,1909.

2 SHEETS--SEEET 2.

llltllllfnlt aren a nu.

' BRITTN E. BYRD, GF DURHAM, NORTH CRULIN, ASSIGNOR T0 BYRD MFG. C0., Oft? DURHAM, NORTH CAEQQNA.

KNDTTER.

Specification of Lettera latent.

Application filed November 19;, tm. Serial No. 463,459.-

I To all whom it may concern.-

Be it known that I, BRITTON Bran, a

ham, in the county of Durham and State of North Carolina, have invented a new and useful lnotter, ot' `which the following is a specification.

This invention relates to hand operated knotters and has for its principal object to provide a novel construction oi knetter in which practically all the parts are formed of stamped sheet metal, and therefore may be produced at a minimum expense.

A further object of the invention is to provide a construction of knoter in which .the operating mechanism is so arranged as to follow a natural movement of the thumb sov 'that the knetter may be operated Without vfatigue.

A 'further object of the'invention is to improve and simplify the general construction of the trame and the thread clamping mechanism. l

Further objects and advantages will appear in the following description, itbeing' understood that various changes in form, proportions and minor details of construction may be resorted to within'thescope of the appended claims.

ln the accompanying drawings forming a part of this siriecilieation Figure l is a side elevation of a knetter constructed vin accordanee with the present invention. Fig. 2 is a similar vien' looking at the opposite side ot the knetter., the parts heine in normal position and in readiness to i. -eive a thread to bev knotted. Fig. 3 is a view similar to Fig. 1, showing the parts in the positions assumed ,at the completion ott the knot tying operation. Fig. 4 is a vertical plan view with the lower portion of the frame in section. V

Fig. o 1s a detail perspective view oi the upper main frame detached. Fig. 6 is a detail perspective view or the thumb actuated lever, showing the manner ofi mounting the thread clamping lever in position thereon.

Similar nun'ierals of reference indicate corresponding` parts in all the figures of the drawings.

The main .traine .illustrated in Fig. 5 is formed of a sing sheet of metal which may" be die stamped and bent to form a top 1t), a pair, of

parallel side Walls

11 and 12 and a pair of trent and rear Walls and la? t' e whole being in the form of an approximately rectangular box open at the bottom.

.Thefront Wall 13 is provided with an opening for the reception of the forward end ofa tying-bill shaft 15 Which-carries at the front end a tying-bill 16 ot' the type usually eniployedvin machines of this class and near the front end of the shaft is a fixed collar 1T which holds the shaft from forward endWise movement. i

The rear end of the shaft has a slight' recess for the reception of the pointed end of a bearing pin 18 that is mounted in a .threaded opening formed in the rear wallv lll of the main casing and locked in place by a nut 19.

The side Wall v12 of the casing is extended longitudinally beyond the front Wall 13 and thence bent laterally and upwardly to produce a bill E20 which forms a guide for the thread or yarn during the tying operation. y The clamping'- or cutting member of the tying-bill is actuated as is usual by a ring :'23 that is mounted eccentrically with respect to the tying bill shaft, and this-ring has a base flange 2st which, in the present instance is conined in place by one or more clamping screws 25. l

The handle is .preferably stamped or otherwise formed from` a single plate of sheet metal bent to conform to the soaps of the hand and having its opposite ends ro-` vided witlropenings for the reception o an attaching ap 3l.

Formed integral with and extending latorally from the handle 30 is an upwardly curved arm 32 which is connected to the side wall 11 of the main vtrame by a screw or similar 'fastening device 33.

` Extending between the arm 32 and the rear end of the main frame is an arcuate arm 3:23", one end of which is fastened to the arm 32 by a screw 34', While the opposite end thereof is provided With a segmental slot 35 for the reception of a relatively small screw 3G. Thus 1t will be seen that by loosen ing the screw7 36 the main supporting frame may be adjusted at lan angle or inclination with respect to the handle and securely locked in adjusted position, said main frame swinging on the screw 38 as a pivot.

Pivotally mounted at 37 on the main' trame lis an actuating lever 39 Which forms a closure for the open end of the roain` frame Patented sept. i4, 1909;

and has one end thereof bent downwardly to produce a thumb-piece 40, there being flanges 41 and42 extending vertically from'the opposite longitudinal edges of the actuating member and provided with transversely alined openings 43 for the reception of the pivot pin 37, as shown.

To the lower side of' the forward end of the lever 39 is secured a small clampingplate 44 which serves to hold the lower end of a flexible actuating member preferably in the form of a cord 45 that is wound around the shaft 15 andis secured at its end to a collar 46 on said shaft.

When the/ lever is pulled down from the position shown in Fig. 1 the cord will be lclamping lever .48 having its upper longitudinal edge disposed in a straight line and its forward portion terminating in an overhanging finger 49.

rlhe rear end of the lever 48 terminates in a main clamping arm 50, to the extreme.

end of whichv is pivoteld a clamping member 51 that straddlesthe' clamping member 50 and is provided with4 a clamping hook 52 extending over theclampin/g edge of the arm i 50 in such a manner as tofirmly bite the thread.

The clamping member 51 entends rearwardly and is held at all times in contact with a pin or screw 58 that projects from the side plate 11. Thisclamping member 51 is engaged by. one end of a'spring 5 the `opposite end of which is coiled'around the'screw 33 a number of times and .thence is bent upward lunder the arm 32 of the handle as indicated .at 55. lThe tendency of the spring is to maintain thetwo clamping. arms in the position.V shown in Fig. 1

of the drawings and to assist'in restoring.

the clamping arms 'or members to this position, after each operation.` The screw 83 also forms a pivotal support for a small substantially segmental plate 56 having an inclined' or cam face 57,1which engages a pin or anti-friction roller 58 extending laterally from.v the flange 42 ofthe actuating lever 39, so -that when the lever 89 is pulled down the roller 58 will ride on-Y the cam face 57 and movement will be transmitted to the thread clamping member.

. One lof the arms 59 of the plate 56 is provided with a threaded opening for the reception `of a screw 60,' which latter also passes .through an arcuate slot 61 formed in the lever. 48, the slot being curved on an arc structure from the axis of the screwl so' that by manipulating the screw 60 the anguvlar disposition of 'the 4lever 48 may be changed at will. This adjustable connection between the plate 5G and lever 48 also permits adjustment of said members'so that the operation of the thread clamping members .may be timed with the utmost accuracy.'

In order to permit the passage of the roll-er i' 58 an arcuate slot 62 is formed l-in the wall 11 of' the main frame, as best shown in Fig. 5 of the drawings.

The operation of the tying bill proper is familiar to all persons skilled in this art,

particular descrip;

As the thumb lever 4`Ois pulled down the roller 58 will ride on the cam face 57 and movement will therefrom be transmitted to the thready .clamping lever 48 causingthe latter to move from the position shown in Fig. 1 of the drawings to that illustrated in Fig. 8 so that the threads ,willbe gradually clampedbetween the

members

50 and 52, the clamping action on the thread increasing as the operation progresses, andtoward the latter art of the movement the knotted thread 1s pulled from the tying bill. .lt will be noted that the main frame' is disposed at an obtuse angleto the general plane of the handle member 30 so that when the device is held in the hand in the'usual manner the thread guide, thread-"clamp, and tying bill will be brought into more-convenient: position` for operation. At the .same time' the actuating lever is arranged toswing downf ward'so that the operator may :move the thumb down toward thepalm of the hand,

the operation being much easier to accomplish than where, la'sr'in most machines of this class 4the movement'of the thumb is in the ldirection of the fore-finger and therefore brings into play muscles which" ordinarily are not exercised..4 It will also be noted that the over-hanging arm or finger 49 of the lever 48 by engagement with the screw 36 serves to-limit the tilting movement of saidlever.

'By having the main frame and its associated parts olf-set with respect to the handle 30, the thumb-piece 40 is always in position to be engaged. by the thumb of the operator without the necessity of bending the thumb' at the first joint thereof.

4f-laving thus described the invention 'what is claimed iszv i 1. In a hand operated knetter, a frame including a handle member, a tying bill, a

tying bill shaft mounted in the frame, a thumb lever pivoted at its rear end to the frame vand arranged to swing downward during thel knot tying operation, and a flexible member Wound around the tying shaft and connected to said thumb lever.

2. In a hand operated knotter, a vframe including a handle member, a; tying bill, a tying bill shaft journaled in the frame, a thumb lever pivoted at its rear end to the lower portion of the frame and arranged to swing downward-during the knot tying operation, a flexible member Wound around the shaft and connected to said thumb lever, a thread clamping member,fand means for transmitting movement from the thumb ley ver to said thread clamping member.

3. In a hand operated knot tying machine, a main frame, and a handle frame disposed at an obtuse angle to each other, a tying bill, a tying bill carrying shaft journaled in the main frame, a thumb lever pivoted in the main frame and arranged to swing downwardly and toward the handle member during the knot tying operation, and a flexible member Wound around the shaft and connected to said thumb lever.

4. In a hand operated knot tying machine, a main frame, a handle frame oft' set With respect to the main frame and disposed at an obtuse angle to the latter, a tying bill, a tying bill carrying shaft journaled in the main frame, a thumb lever pivoted in the main frame and arranged to sWingdoWnvvardly during the tying operation, and a flexible member Wound around the shaft and connected to said thumb lever.

5. In a hand operated knot tying machine, a substantially rectangular main frame, a handle frame having an integral curved arm rigidlysecured to the main frame, a thumb lever pivoted at its rear end to the rear portion of the main frame and arranged to lit -betiveen the latter When in closed position, a tying bill, a carrying bill shaft j ournaled in the main frame, a tlexible member'vvound on the shaft and connected with the thumb lever, a thread clamping member, and means for connecting the terminal clamping member tothe thumb lever.

G. In a hand operated knot tying machine, a main frame, a thumb lever pivoted thereto, a tying bill actuated from the thumb lever, a thread clamping lever having a cam face, a projection extending from the thumb lever and engaging said cam face, and a secondary clamping member pivotally connected to and carried by said clamping lever.

In a hand operated knot tying machine, a main frame, a thumb lever pivoted thereto, a tying bill, means for actuating the tying bill from the thumb levers, a thread clamping lever, a plate adjustably secured thereto l ing said cam tace, a romplcnlentary clampj ing member carried at the tree end of the lever, and means for limiting the swinging l movement of said complementary clamping l member.

8. In a hand operated knot tying machine, a main frame, a tying bill, a thumb lever for operating said tying bill, a main thread clamping lever, a plate pivotally connected With the clamping lever and provided With a cam face, adjustable means between the plate and lever, a projection extending from the thumb lever and engaging the cam face, a complementary member, and. means serving to restore the clamping member and lever to initial position. y i

9. In a hand operated knot tying machine, a main frame, a handle olil set with respect to the main frame, a connection between the handle and main frame for permitting adjustment of the latter with respect to said main frame, a thumb lever carried by the main frame, a tying bill actuated from the thumb lever, a thread clamping lever having a cam face, a projection extending trom the thumb lever and engaging said cam face, and a secondary clamping member pivotally connected to and carried by said clamping lever. f

l0. In a hand operated knot tying machine, a main frame, a handle having an arm extending laterally from one longitudinal edge thereof and pivotally connected with the frame, a slotted arm forming a connection between the arm of the handle lever and the main frame to permit tilting movement of said main frame, a tying bill, a tying bill shaft mounted in the frame, a thumb lever pivoted at its rear end to the frame and arranged to swing downwardly during the knot tying operation, and a flexible member Wound around the tying shaft and connected to said thumb lever.

chine, a main frame, a thread clamping lever pivotally mounted on the main frame and having one end thereof extended longitudinally to form a stop nger, a thumb lever, a tying bill actuated from the thumb lever, a plate having a cam face, and a projection extending laterally from the thumb lever and engaging the cam face for actuating the thread clamping member. l

12. In a hand operated knot tying machine, a main frame having aslot formed in one side thereof, a handle member off set With respect' to the main frame and secured to the latter, a connection between the handle and main frame to permit the angular adjustment ofl said main frame, a thread clamping lever, va thumb lever pivotally mounted on the main frame, a tying bill actuated 'rom the thumb lever, a plate having a cam face, a projection extending laterally from the thumb lever and operating 11. In a hand operated knot tying ma-` Within the slot vin the mein frame for engage! In testimony that I claim the foregoing lment with the cam face of the .'plate, there es my own, I have hereto fxilxelmyl signabeng a segmental-slot formed .in the thread ture n the presence of .two Witnesses. Aclamping lever, and a screw extending BRITTON E. BYRD. 5" through said. slot and engaging the plate Witnesses:

for adjustin' the thread'clamping leverrelaf` 1S. PERRY, 'tively to sai plate. W. H. MCCABE, Jr.