US1316215A

US1316215A - amdursky and s

Info

Publication number: US1316215A
Authority: US
Publication date: 1919-09-16
Anticipated expiration: 1936-09-16

Description

S. S. AMDURSKY AND S. RUBENFELD.

MACHINE FOR CUTTING BUTTONHOLE S.

APPLICATION FILED SEPT. 13.1911.

Patented Sept. 16, 1919.

4 $HEETSSHEET 1.

QM Q INVENTORS WITNESS 1 14 ORA/EV S. S. AMDUHSKY AND S. RUBENFELD. MACHINE FOR CUTTING BUTTONHULES- APPLICATION man SEPT. I3. 1911. v v 1 fiflfi %jl,% Pafentedfiept. 16,1919;

4 $HEETS--SHEET 3 WITNESS f [NYE/ Mk3 S. S, AIVIDURSKY AND S. RUBEN FELD.

MACHINE FOR CUTTING BUTTONHOLES. APPLICATION FlLED'SEPT-13, I917.

1,3 1 6,21 5,. Patented Sept. 16, 1919.

I WITNESS niTED strains PATENT OFFICE.-

SAMUEL S. AMIDURSKY AND SAMUEL BUBENFEID, OF ROCHESTER, YORK.

MACHINE FOR CUTTING BUTTONHOLES.

will be fully illustrated in the drawings,

described in the specification and pointed outin theclaims at'the end thereof.

In the drawings, v Figure 1 is a top plan view of the machine partly broken away.

1 Fig. 2 is a front elevation ofthe machine partly broken away.

Fig. 3 is a sectional elevation, the section I being taken on the line 3"3* of Fig. 2. v.

Fig. 4 is an end elevation of the machine viewed from the left hand end of Figs. 1

and 2. 4 Fig. 5 is an end elevation-of the'machine viewed from the righthand end of Figs. 1 and 2.

Fig. 6 is a rear elevation partly broken away.

Fig. 7 is a detail view of the cutting of the machine block and support therefor partly broken away.

Fig. 8 is a sectional View through an ad justing device, the sectionbeing taken on the line 8 -8 of Fig.- 1. Fig. 9 is averticalsection through one of the cutters, the section being taken'on the line 9"-9? of Fig. 1.

' Fig. 10 is a sectional view of the rear end support ofthe threaded shaft that controls the spacing of the cutters.

' In the drawings like reference numerals indicate like ,parts.

In the drawings reference numeral 1 in dicates the plate at the right hand end of the machine and reference numeral 2 indicates the plate at the left hand end of the machine. .On top of these plates and connecting them isthe cover plate 3. This cover plate is fastened to the end plate 2 by screws 4:, 5 and 6 and to'the end plate 1 by the screws 7 8 and 9.

Fastened at the front of the cover-plate 3 by the screws 11, 11 is theplate 10. Formed Specification of Letters Patent.

block 13 in which it is free to rotate.

Patented se t. 1c, 1919.

Application filed September 13, 1917. Serial No. 191,320.

on thebottom of the cover plate is the flange l2 WhICh Wltl'I the plate 10 forms a guide or runway for the bearing blocks 13. One of thesebearing blocks 13 is provided for each set of cutters in the machine. The cutters are adjustable so that the space between the cutters can be varied uniformly at will and the means by which this result is secured will now be described as follows:

Mounted in each of the bearing blocks 13 1s a support 1 1 for the

cutters

15 and 16. This support is made up of a round stem 17 and a block 18. The stem 17 makes engagement with the cylindrical opening in the Extending rearwardly from the stem 17 as shown in Fig. 1 is a shaft 19 making threaded engagement with the stem. 17 on the rear end of the shaft 19. is a knurled wheel or handle 20 by which the shaft 19 and the sup port 14 may be turned and held in difierent positions.

For this purpose the shaft 19 is recessed as indicated at 21. Fastened to the shaft 19 is the stud 23, the frward end of which makes threaded engagement with the recess in the shaft 19. Mounted. on the stud 23 is the flanged. collar 22., ,the small end of which engages in the slot 24: in the rear side of the cover-plate 3. This slot 24 extends sub stantiallythe full length of the cover-plate and the shaft 19 and parts attached thereto are free to slide along the slot.

The studs 23 are slotted as indicated at 25. A pin 26 is fastened in each of the handles .20 and makes a sliding engagement with the slot 25 in' the stud 23. The handle 20 is normally pressed to the right into engage ment with the late 3 as shown in Figa' 8 by means of t e compression spring 27.,

which spring bears against the handle 20 at the righthand end and against the pin 28 fastened in the stud 23 at the other end.

The handle 20 has its forward end recessed. to form 1 shouldered parallel sidesthereon, which sides normally engage in the slot 24, being held in such engagement by the spring 27. The shaft 19 can be turned by means of the handles 20 so as to throw the cutters into and out of operative position. By withdrawing the handle 20 from theposition shown at the right of Fig. 1 the shaft 19 can be turned 180,after which the handle can again engage in the slot 2-1 locking the shaft in the new position. By means of this arrangementthe handle can be held in locked engagement with the slot in the plate 3 in either of two positions 180 apart and the shaft and cutters thereon'will be positioned accordingly. I I 5 On the end of the shaft 19-is the support 14 carrying the cutters described. Asshown in Figs. 3 and 9 these cutters are normally positioned withtheir cutting edges turned down facing the cutl0 ting block 29. This cutting block is mount ed on the brass cutting block support 30 which moves up and down in a curved path with a parallel movement, it being supported for this purpose by the swinging

parallel links

31 and 32. This support is raised bythe; cranks 33 keyed to the shaft 34, which shaft is rocked by the lever 35 to which is connected a link 36 which in turn may be operated by a treadlev or any other suitable device.

As the cutting block approaches the knives by a swinging motion and the mate- 'rial is interposed between the cutting block and the knives, the knives will give a shearing cut to-the material causing it to be easily cut by the knives By turning the particular ones of the handles 20 one or more of thecutters can be turned away from the cutting block so that those particular knives will not cut the material that is laid on and carried upward by the cutting block. The cutter is circular and is intended. to cut the eye at the end of the buttonhole. This cut- 30 ter is adjustable up and down and for this purpose is mounted on a screw 37 which has a round head at the upper end by which it may be turned up and down in the block 18. The cutter 16 is also adjustable up or down and for this purpose the screw 38 is provided. To prevent the cutter from moving up and down with the screw I support the cutter as follows:

.Thescrew 38 is recessed and receives in 45 its recess the end of the stem 39. This stem makes a shouldered engagement with the bottom of the screw 38 and is provided with a screw 40 which makes a shouldered engagement with the screw 38 near the top thereof by which the stem 39 can be rigidly clamped to the screw 38 By turning the screw 40 the screw 38 is released from the stem 39 so that the screw'38 is free to turn thereon and as it turns it is raised. or lowered in the block 18 and after its desired setting is secured the screw 40 can be turned causing the stem 39 to be moved if necessary and fastened in the desired position. The bottom of the stem 39 is slotted and in the slot is set the knife 16, in which "slot it is clamped by the screw 41. The stem 39 is slotted vertically at 42. A screw 43 is provided in the block 18 which has a reduced end which engages with the slot 42 and'perinits the stem to slide up 15 and 16 as above b .ment.v As the cutting cutting block support 30.

and down but prevents it from turning as the screw 38 is turned.

. It will be seen that the end of the cutter 16 comes very close to the cutter 15 so that the slot and the eye of the buttonhole will e cut in substantially one continuous cut, the fiber that is left uncutbeing little or nothing.

It will be also understood that the cutter 16 cuts a single-slit without removing material from the cloth while the cutter 15 cuts a round opening which causes the removal of some of the material from the cloth, which material is pushed upward through the opening inthe screw as it accumulates. I V

The length of the buttonhole is determined/by adjusting the cutting block 29 forward oiabacif This adjustment is secured by the ere-W44, which screw makes 85 threaded engagement with the block 29 as ,indicated at d5 in Fig. 7 and rotates freely in the flange atthe front of the support 30 in which it is held against endwise moveblock 29 is moved to the right in Fig. 3 it will engage more and more with the cutter 16 and increase the length of the cut.

The ends of the cutting block 29 are guided by the rollers 46 which are set on pins fastened in the upturned ends of the Each end of the cutting block will be in engagement with two or three of these rollers and by this engagement the cutting block will be held to a parallel forward and back movement and it will be thereby held in line.

The cutters are spaced apart by a mechanism which we will now describe.

A- series of 'lazy tongs 55 is provided, which lazy tongs on one side are fastened to the bearing blocks 13 and on the other side to blocks 56 which are mounted to slide on the shaft 19. iVhere the lazy tongs cross they are fastened to blocks 57 which are mounted to slide freely on the screw shaft 58. A double set of these lazy tongs is provided engaging with both the top and bottom of these blocks. At the left hand end of' Figs. 1 and 2 the block 57 is threaded and makes engagement with the screw 58.

On the right hand end of the shaft 58 is provided a pinion 59 with which meshes a gear 60 which is turned by a crank 61 and a handle 62. By this mechanism the shaft 58 can be rotated and the block at the left hand end of the shaft can be moved to the right or left. This in turn will bring the center of all the lazy tongs nearer together or spread them farther apart bringing the shafts 19 closer together or spacing them farther apart; The end shaft is moved the greatest distance and each of the remaining shafts and their cutters are moved to an extent proportional to its distance from the end of the series. It will be understood that all the blocks 57 except the end block slide freely on the shaft, the block at the left hand end alone being-threaded to the shaft. The shaft 19 at the right in Fig. 1 and its cutter is held stationary.

As the lazy tongs 55 swing the blocks 57 will be moved forward or back and must, therefore, carry the shaft 58 forward or back with them and to permit this the shaft 15 mounted to move laterally. To permit the lateral movement of the shaft 58 the end plate 2 has a slot 63 therein which receives the left hand end of the shaft, in which slot the end of the shaft may slide and turn freely. The plate 1 at the right hand end of the machine is provided. with a slot 64, in which slot is mounted a block 65, which block carries the end of the shaft 58 and the shaft 66 on which is mounted the gear 60 and the crank 61.

For the purpose of positioning the but tonholes at the proper distance from the edge of the cloth we provide a gage 67 which is adjustable forward and back toward the cutters. The. gage is U shaped and the upturned ends 68 and" 69 ofit are slotted as shown in Figs. 4 and 5. On these ends are provided the racks 70 and 71. A shaft 72 is provided having pinions keyed thereon which engage with each of the racks 70 and 7l so that by turning the shaft the .1 pinions are rotated and the racks are moved forward," and backward and the gage is moved with the racks. The shaft 72 is mounted to rotate in the bearings in the plates 1 and 2 as appears in Fig. 3.

As the gage is moved in and out it can swing on the shaft and the forward edge of the gage is held in engagement with the cutting block by means of the spring 73 which is fastened at one end to the gage and at the other end to the bud 2 of the machine. I I

On the

end plates

2 and 3 is fastened a U shaped guard plate 7 5 which guard plate is cut away at the top in front, the edges being bent backward as shown at 76 and 77. On the ends of the guard plate at the top are formed

flanges

78 and 79 in which is supported a glass cover plate 80 which protects the cutters.

\Ve claim.

1. In a machine for cutting button-holes, the combination of a frame, a series of cutters mounted to slide thereon, a series of lazy tongs connecting said cutters, a screw shaft, the end. pair of lazy tongs making threaded engagement with said shaft, the ot.erpairs of lazy tongs making sliding engagement with said shaft whereby the end cutter is moved positively on the rotation of the shaft, and each of the remaining cuttem is moved to an extent proportional to its distance from the end of the series, said lazy tongs being held against lateral movement on one side and being free to move laterallyon the other side and at intermediate points with the screw shaft.

2. In amachine for cutting buttonholes the combination ofa frame, cutters mounted to slide thereon parallel to the work, means, for rotating said cutters around a horizontal axis to throw them into and out of operation. 75 V 3. In a machine for cutting buttonholes the combination of a frame having a guide thereon, a bearing block mounted to travel in said guide parallel to the work, a support ing block mounted to rotate on said bearing block, cutters carried by said supporting block, 'means for rotating said supporting block in the bearing block and locking it in operative or inoperative positions. l

4:. In a machine for cutting button-holes, the combination of a support, a series of cutters mounted to slide along said support, a seriesof lazy tongs connected to said cutters, said lazy tongs being fastened against movement at one end, means forpositively moving them at the other end, said cutters thereafter normally remaining stationary, and means for moving the work against said cutters, said means including a threaded shaft having a threaded nut thereon engaging and moved bysaid shaft, said nutbeing attached to the lazy tongs at the free end of the series, sleeves attached to the intermediate lazy tongs and engaging with said shaft to slide freely thereon, said lazy tongs being held against lateral movement on one side and being free to move laterallypn the other side and at intermediate points with the screw shaft.

5. In a machine for cutting buttonholes the combination of a supporting'block, a round cutter and a straight'cutter mounted in said supporting block, said cutters working together to cut two parts of a single opening, screws for positively adjusting said cutters up and down. I

6. In a machine for cutting buttonholes the combination of a series of cutters. a cut ting block adapted to move toward and away from said cutters, means for supporting said cutting block, said means being adapted to move said block with a parallel motion through the arc of a circle by which a shearing cut will be given, said block remaining in all positions parallel to its original position. i

'7. In a machine for cutting buttonholes thecombin'ai'ion of a cutting block mounted to swing toward and away from the cutters,

a gage mounted to swing on saidmachine with or indepcmlcntly of the cutting block, said gage bearing against the cutting block and'noriually swinging therewith.

8. In a machine for cutting button-holes,

the combination of a support a series of cut 1.0 to move laterally onjthe other side and at 'havmg mountings connected to tongs on the'opposite sides thereof by which said cutters are sides of the ing -fastenedagainst movement &

along said support, a s aftcolmected to each cutter by which, its movement iscontrolled, a series of lazyte' rs mounted to. move being connected at two points on opposite lazy-tongs, said lazy-tongs beheld' in correct parallel alinement, said lazy tongs being held against ateral movement on one side and being free to move laterally on the other side and at intermediate the cutters.

10; In a machine for cutting button-holes, the combination of a series of lazy-tongs, a series of cutters spread thereby, said cutters aving mountings connected to said lazytongs on the opposite sides thereof by which said cutters are held in are held in alinement at said points, said being held against lateral move- (1 being. free to move laterally on the other side and at intermediate points toward and away from the cutters. n testimony whereof we affix our signatures in the presence of a witness.

SAMUEL S. AMDURSKY. SAMUEL RUBEN FELD. itness:

ELEANOR M. CORCORAN.

points toward and awayfrom