US1254398A - Snathe-press. - Google Patents

Description

G. M. FENN.

SNATHE PRESS.

APPLICATION FILED JUNE 29. I917.

Patented Jai1.22,1918.

IL E5%,39&

4 SHEETSSHEET l.

o s e 1 e. M. FENN. SNATHE PRESS.

APPLICATION FILED JUNE 29. I917.

Patented Jan. 22,1918.

4 SHEETS-SHEET 2.

luon 1 607,

wmm

Momma;

G. M. FENN.

SNATHE PRESS.

APPLICATION FILED JUNE 29, I917.

Patented Jan. 22, 1918.

4; SHEETSSHEET 3.

Nmh

amoemfoa;

G. M. FENN.

SNATHE PRESS.

APPLICATION FILED JUNE 29. 1917.

xv Q Ma & WNW mm ww m m V m 9%, H Q o o M.. 2 H y o o 0 3 H .QW. Q E h n Rm d m Wm m 4 N m & mm P fin QNN NNN mwN N N h MNN rlk V (S NW N wk Am MN .m wk 0 WW Wm" km k N mm n J QR m WW/knew GEORGE IVI. FENN, 0F CHARLOTTE, MICHIGAN.

SNATHE-PRESS.

Specification of Letters latent.

lPatented J an. 22, this.

Application filed June 29, 1917. Serial No. 177,789.

T 0 all whom it may concern:

Be it known that l, GEORGE M. FENN, a citizen of the United States, residing at Charlotte, in the county of Eaton and State of Michigan, have invented a new and useful Snathe-Press, of which the following is a specification.

The device forming the subject matter of this application is a machine for bending scythe snathes the structure being an improvement in the machine shown in my prior Patent No. 707,221, granted on the 19th day of August, 1902.

One object of the present invention is to provide novel means whereby the horizontal bends in the snathe are reinforced, during the formation of such bends, to prevent too abrupt a bending.

Another object of the invention is to improve the means whereby the vertically moving presser is operated and controlled.

The invention aims, further, to provide novel means for actuating the various movable parts of the structure.

It is within the province of the disclosure to improve generally and to enhancethe utility of devices of that type to which the present invention appertains.

\Vith the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in top plan, a machine for bending scythe snathes constructed in accordance with the present invention;

Fig. 2 is a longitudinal section wherein divers parts appear in elevation;

Fig. 3 is a cross section taken approximately on the line 33 of Fig. 2;

Fig. i is a view constructed in part like Fig. 1, but showing certain of the elements of the structure shifted to the positions which they will assume after the scythe snathe has been bent;

Fig. 5 is a fragmental side elevation, introduced mainly for the purpose of showing the means whereby the form which receives the snathe blank ultimately, is moved automatically on the table.

The machine forming the subject matter of this application includes a farm which may be variously constructed without jeopardizing the utility of the invention. The frame, therefore, has been denoted generally by the numeral 1, and such parts of the frame as have particular functions in the operation of the machine will be marked hereinafter by appropriate reference numerals. The frame 1 is provided adjacent its forward end, with a horizontal table 2, and to the rear of the table 2, the frame 1 supports horizontal guides 3. The numeral 5 denotes a former, the forward edge of which is curved to correspond to the horizontal bends which are to be put into the scythe snathe. The former 5 has a reduced rear end l slidably mounted in the guides 3. The reduced end 4: of the former 5 is supplied with a slot 7 across which extends a pivot element 6 supporting the forward ends of links 8, the rear ends of which are united by a pivot element 9 with the forward ends of links 10, the links 8 and 10 constituting a toggle. The rear ends of the links 10 are mounted on a pivot element 11 carried by blocks 12 mounted to slide for adjustment in the guides 3. At the rear end of the frame 1 and located between the guides 3 is a fixed abutment 1 1. Cooperating wedges 15 are insertible endwise through the guides 3 and are located between the bearing blocks 12 on the one hand, and the abutment l l on the other hand. Securing devices such as bolts 16 pass through the bearing blocks 12, the wedges 15 and the abutment l l, the wedges 15 being suitably slotted to receive the bolts 16, so that the wedges may be adjusted endwise. It will now be understood that the wedges 15 constitute a means whereby the bearing blocks 12 and consequently the pivot element 11 may be adjusted horizontally, to secure desired adjustments in the toggle joint including the links 8 and 10.

The upper end of a pitman 17 is mounted to swing on the pivot element 9, and the lower end of the pitman is carried by a pin 18 connecting a pair of gear wheels 19 carried by shafts 2O journaled in the frame 1, the gear wheels and the pin 18 constituting, to all intents and purposes, a crank. The gear wheels 19 mesh into pinions 21 carried by a shaft 22 jonrnaled in the frame 1. Mounted on one end of the shaft 22 and disposed exteriorly of the frame 1 is a gear wheel 23 meshing into a pinion 24 on a shaft 25 journaled in the frame 1. Any suitable means may be employed for driving the shaft 25. In the present instance, the shaft 25 is shown in Fig. 1 as supplied with a pulley 26 adapted to be operated by a belt 27. A clutch 28 may be interposed in the shaft 25, the numeral 40 denoting any suitable means for operating the clutch.

It hasbeen pointed out hereinbeforethat the forward end of the former 5 is curved to conform to the horizontal bends of the scythe snathe. The forward edge of the former 5 embodies an intermediate crown or convexity 29, and terminal recesses or con cavities 30. In the forward edge of the movable former 5 and extended longitudinally of the recesses 30 are seats 31. The former 5 is provided near to its central portion with securing devices 32 on which are mounted the inner ends of spring arms 33. These spring arms 33 tend normally tostand straight, as shown in Fig. 1, but when fully compressed, they are received in the seats 31. Near to their outer ends, the spring arms 33 are engaged by strong compression springs 34, their rear ends being received in the openings 35 in the former 5, as shown in Fig. 4. Secured to the rear edge of the former 5 near to its ends, are frames 36. Plunger-s 37 are mounted to reciprocate inthe frames 36 and in the former 5, in a direction substantially parallel to that in which the former 5 moves. The plunger-s 37 are supplied with abutments 38, and strong compression springs 39, surrounding the plungers 37, engage with the abutments 38 and with the rear ends of the frames 36, so. as to advance the forward ends of the plungers with respect to the cavities 30, as clearly shown in Fig. 1.

A head 41 is secured to-the table 2, the rear edge of the head being shaped to'correspondwith the forward edgeof the former 5 and, consequently, to conform to the horizontal bends which are to be placed in the scythe snathe. Adjacent its point of greatest depression, the forward edge of the head 41 is supplied with a seat 42 into which a spring arm 43 is adapted to be compressed, the spring arm normally standing straight, as clearly shown in Fig. 1. One end of the spring arm 43 is attached at 44 to the head 41. There are openings 45 in thehead 41 and in these openings are seated strong-com pression springs 46 which bear upon and reinforce the spring arm 43 in a manner-which will be obvious from Fig. 1.

Comparing Fig. 3 with Fig. 2, it will be seen that a rod 47, disposed transversely of the machine, is mounted in the frame 1 near to the bottom of the frame. On the projecting ends of the rod 47 are mounted the lower ends of bars or side members 48. These bars 48ers so mounted on the ends.

of therod 47 that they may have a slight movement transversely of the machine in the-direction-of the arrows A of Fig. 3. and

also have a slight movement longitudinally of the machine, in the direction of the arrows B of Fig. 1. Compression springs 49 are interposed between the bars 28 and the sides of the frame 1, as shown best in 3. The bars 48 carry, at their upper ends, a flexible jacket, preferably made out of thin spring- steel strips 50 and 51, the ends of the strips being adjusta'bly connected, by means of bolts 52 with the upper ends of the bars48. While the scythe snathe is beingbent, the same-is disposedin the jacket comprising the strips 50 and 51, but before the scythe snat'he is bent, the spring strips 50 and. 5-1stand straight and parallel, shown in Fig, 1. It will now be understood that thesprings 49 serveto swing the upper ends of the bars 48.-ou;twardly, thereby to straighten the strips 51, and it is for this purpose that the bars48 have a slight transverse swinging movement on the ends of the rod 47, as indicated by the arrows A; in. Fig, 3. a

The numeral 53 marks. a. horizontally swinging lever fulcrumed. at 54 on the frame 1 and provided at its rear end with a wedge block 55. Theforward end of the lever operates between the bolts 52 which are connected with the strips 50 and: Slat one side of the machine, as F ig. 3 will clearly disclose. A-slide501 has limited movement in the lever 53, longitudinally of the lever. The slide 501 has'an inwardly extended projection 502. On the opposite side of the machine frame there is a projection 500. The projections 500 and 502 support'the snatlie blank 123 when the same is placed in the flexible jacket 5051 and before end pressure is applied to the blank, as herein after described. The numeral 56 denotes a horizontally swinging lever including arms 56 and 5-7, the arm 57 being fulcrumed at 58 on. the head 41. A reinforcing link 59 may connect the fulcra 5S and 54 of the lovers 56 and 53 respectively. Journaled on the lever-56 adjacent its angle is a wheel 63 adapted: totraverse the inclined edge'ofthe wedge block on the lever 53. The head 41 carries a bracket on which is fulcrumed at 61, an angle lever 62, comprisiag anarm 64 and an arm 65. The arm 6-1 operates between the bolts- 52 of the- strips 50 and 51, at

the opposite side of the machine from the lever 53; The inner ends of the lever 56 and the arm 65- of the lever 62 are overlapped and are provided with slots 66.

The mechanism for imparting movement to the levers 56 and 62 includes an upright rod 67, shown in Fig; 2, this rod operating in the slots 66. At its upperand lower er ds, the rod 67 has enlargements 68 into which are threaded for adjustment, rods-69. held'by lock nuts 70. The rear ends of the rods 69 are reduced in diameter as shown at 71 and are disposed above the movable former 5. The reduced ends 71 of the rods 69 terminate in enlargements or buttons 72, and where the reduced ends of the rods join the body portions of the rods, shoulders 73 are formed. Guides 74 are carried by the movable former 5 and in these guides,- the reduced ends 71 of the rods 69 have a limited longitudinal movement, this movement being limited by the contact between the shoulders 73 and the buttons 7 2 with the guides 7-1.

The machine includes a vertically moving presser '75 which has a part in putting the vertical bends into the scythe snathe, the presser 75 being curved on its lower edge 76, as shown in Fig. 3, to conform to the vertical bends of the snathe. In top plan, the presser 75 corresponds to the horizontal bends of the scythe snathe. Fixed to and upstanding from the presser 7 5 are L-sha ted hangers-77 assembled with a cross bar 78 by securing elements 78. These securing elements cono nect the hangers 77 and the cross bar 78 with vertically moving plungers 80 (Figs. 2 and 3) mounted to reciprocate in the head 11 and in the table 2. The lower ends of the plungers 80 are mounted on a cross rod 81 provided at its ends with anti-friction eleiens. such as wheels 82. adapted to move vertically in upright guides 88 constituting a part of the frame 1 of the machine. The cross bar 7 8 has upstanding ears 8i carrying pins 85 movable in slots 86 formed in bars 87, each bar including a forward end 88. a rear end 89, and an inclined part 90 connecting the ends 80 and 89. The rear end; of the bars 87 are pivoted at 91 to the frame 1, so that the bars can move vertically. Mounted on top of the former 5 are bearings 92 in wh ch wheels 93 are journaled. These wheels 95, coacting with the parts 90 and 89 of the bars 87, have a function in imparting a vertical swinging movement to the bars. for a purpose which will be set forth hereinafter. The lower ends of links 94 are pivetally mounted on the rod 81. The upper ends of links 95 are pivotally supported as shown at 96 on the table 2. The inner ends of the links 94 and 95, which constitute a toggle joint, are connected by pivot elements 97 carry ng rearwardly extended, longitudinally adjustable pitmen 98, which may be turnbuckles. The rear ends of the p tmen 98 are pivoted at 99 to radius rods 100, suspended at their upper ends as shown at 101 from the table 2. Parts 102 of the frame 1 carry strong. forwardly presented compression springs 103, adapted to engage with the radius rods 100, when the same are swung rearwardly to a sutiic ent extent. The lower ends of the radius rods are pivoted at. 104 to links 105 pivoted at 106 to a slide 107 mounted to move in horizontal guides 108 located at the bottom of the 'rame 1 and constituting a part thereof. The slide 107 has a. projection 109 coacting with a shoe 110 which is mounted on the lower end of the pitmen 17.

The numeral 111 marks a rigid form which is supported on the table 2 between the fixed head t1 and the movable former 5. Horizontally, the form 111 is shaped to correspond with the horizontal ends of the scythe snathe, the bottom 112 of the form 111 being curved as shown in Fig. 3, to correspond to the curved lower edge of the vertically moving presser 75 and curved, con sequentlv, to conform to the vertical bends in the finished scythe snathe.

A means is provided whereby the form 111 may be moved, in a manner to be clescribed hereinafter, so that it may be grasped readily by an operator. With this end in view, a projection, preferably a. wheel 11 1, is journaled on one end of the movable former 5, as shown in Fig. 5. The wheel 11% is adapted to ride on one end of a vertically movable lever 115 fulcrumed at 116 on the table 2. The lever 115 has an. upstanding forward end 117, terminated in an inwardly projecting, substantially horizontal finger 118 (Fig. adapted to be re ceivcd in a groove 119 (Fig. 5) formed in the table 2. When the form 111 is in place, the form lies above the finger 118 of the lever 115. The numeral 120 denotes a vertieally swinging lever fulcrumed intermediate its ends on the table 2, the rear end of the lever 120 bearing against the rear end of the lever 115, there being a weight 122 as sembled with the forward end of the lever 120.

in discussing the operation of the ma chine, the nioveinents of the various important parts will. be set forth; the driving trains will then be traced out, and finally the purposes of sulisidiary parts of the iiqicchanism will be mentioned.

The snathe blank 123, in straight form, is placed between the constituent strips 50 and 51 of the flexible jacket. It is desirable that the snathe blank 123 be shielded and protected, against any tendency in the blank to splinter or break, when pressure is exerted, in a manner hereinafter described, on the ends of the blank, and while the horizontal bends are being put into the blank. It is for this purpose that the flexible jacket, comprising the strips 50 and 51 is provided.

As hereinbefore indicated, pressure is applied to both ends of the snathe blank 123 while the horizontal bends are being i1nparted thereto. The reason for compressing the blank 123 endwise, is to prevent an undue stretching ofthe fibers of the blank 123 on the outside of the bends thereof.

The former 5 advances and, cotiperating with the fixed head 41, puts the horizontal l. l U

bends into the snathe blank 123. At the same time, the arm 64 of the lever 62 moves inwardly, and the rear end of the lever 53 moves inwardly, these elements serving to impart the end pressure to the snatheblank 123. The presser 7 5 moves downwardly and carries the snathe blank 123 downwardly into the rigid form 111, the lower edge 76 of the presser 75 coacting with the bottom 112 of the form 111, to put the vertical bends into the snathe blank. The snathe blank new is mounted in the form 111, all of the bends, both horizontal and vertical, having been put into the lank. The form 111 with the contained blank is removed from the machine after the operations above de scribed have taken place.

Passing to the driving trains, it will be understood that when the shaft 25 is rotated by means of the pulley 26 and belt 27, or

otherwise, the pinion 24 drives the gear wheel 23 thereby rotating the shaft The pinions 21 on the shaft 22, meshing into the gear wheels 19, rotate the gear wheels 19, the pin 18 traveling in an orbit, and motion being imparted to the pitman 17. The pitman 17, coacts with the toggle joint comprising the links 8 and 10 to impart longitudinal reciprocation to the plunger 5.

I When the pin 18 moves in an orbit, a right line reciprocation is imparted to the slide 107 by way of the projection 109. From the slide 107, motion is transmitted by way of the links 105 and the radius rods 100 to the pitmen 98 and thence into the toggle joints comprising the links 95 and 94. The links 94-95 serve to depress the rod 81 and the plungers 80, the plungers forcing the presser 75 downwardly, by means of the hangers 77. It may now be noted that, when the lower ends of the radius rods 100 swing rearwardly, the springs 103 are compressed;

These springs, reacting, aid in knuckling the links 94 and 95 into the position of Fig. 2, the operation of raising the presser 75 being facilitated. When the movable former 5 slides rearwardly, the wheels 93, traveling along the lower edges of the parts 90 of the vertically swinging bars 87, pass onto the lower edges of the rear end portions 89 of the bars 87, and thus tend to raise the forward ends of the bars 87, the bars swinging upwardly on the pivot elements 91. lVhen the forward ends of the bars 87 are raised as aforesaid, the pins 85, moving in the slots 86 serve to raise the plungers 80 and consequently the presser 7 5, the wheels 82 on the ends of the rod 81 moving smoothly in the vertical guides 83.

iVhen the former 5 moves forwardly and rearwardly, the guides 74 on the former, coacting with the rods 69, impart longitudinal movement to the rods, and consequently to the rod 67. The rod 67, moving in the slots 66 of the arm of the lever 62 and in the lever 56-, swings the levers 62 and 56 on their respective fulcra Gland 58. W'hen the lever 62 is swung, the arm 64 exerts an end pressure on the snathe blank 123, )Vhen" the lever 56 is swung, the wheel 63 riding. on.

the wedge 55, tilts the lever 53 onits fulcrum 54, and the rear end of the lever also the buttons 72, the rods 69 may have a lim'' ited rearward movement, independently of the guides 74, this movement permitting the rear end of the lever 53 and the rear end of the lever 64 to swing outwardly, promptly, and permitting the strips 50 and 51 of the flexible jacket to straighten out promptly, to receive anotherzblank. It may now be recalled that the springs 49 of Fig. 3, reacting on the bars or side members 48, swing the upper ends of the bars outwardly, to straighten out the strips 50 and 51. It has been pointed out that the bars 48 have a limited movement in the direction of the arrows B in Fig. 1. Owing to the fact that the bars 48 have this movement, the bolts 52 which are connected with the ends of the flexible strips 50 and 51 are not bent when the strips are flexed, between the movable former 5 and the head 41, to put the horizontal bends into the snathe blank 123.

One of the most important improvements in the machine forming the subject matter cussion in the concluding portion of this specification. Especial attentionis now directed to the spring arms 33 which are carried by the former 5, and to the spring strip or arm 43 which bridges the central concavity in the forward edge of the head 41. It has been found that the ends ofthe snathe blank tend to bend too abruptly across the crown 29 of the movable former 5, and it will now be understood that the spring arms 33, reinforced by the springs 34, serve ,to ease and sustain the ends of the snathe blank, when the ends of the snathe blank arebent into the recesses 30, by the action of the corresponding parts of the head 41. Similarly, the spring arm 43 which is carried by the fixed head 41, coiiperates to impart a gradual bending to the snathe blank, thespring arm 43 being reinforced by the springs 46.

Referring to the means, shown in Fig. 5, for manipulating the rigid form 111 into which the snathe blank 123 is pressed, it will be understood that when the former 5 advances, the wheel 114 on the former tilts the lever 115 on its fulcrum 116, the finger 118 rising out of the groove 119 and pushing one end of the form 111 away from the fixed head 41, so that the said end of the form 111 may be grasped, to facilitate the endwise withdrawal of the form. The lever 12 and its weight 122 secures a quick movement of the lever 115, and a prompt return of the finger 118 to the groove 119. the finger 11S coacting with the groove 119 to dispose the rear end of the lever 115 in the path of the wheel 114.

Having thus described the invention, what is claimed, is

1. In a snathe press, a head and a former. one of wh ch is fixed. the other of which is movable. the former having a crown and concaved seats on each sid of the crown, the head being shaped to conform to the crown and the seats of the former; and spring strips assembled with the crown and projecting in front of theseats in spaced relation thereto. 7

2. A snathe press constructed in accordance with cla m 1, in combination with compression springs interposed between the outer ends of the spring strips and the former.

3. In a snathe press. a head and a former, one of which is fixed, the other of which is movable. the former having a crown and concaved seats on each side of the crown. the head being shaped to conform to the crown; and compression springs mounted on the seats and proj cting toward the head.

4. Tan snathe press. a head and a former, one of which is fixed, the other of which is movable. the former having a crown and concaved seats on each side of t as crown, the head being shaped to conform to the crown and the seats and including a concavity coacting with the crown; and a compressible spring strip assembled at one end with the head and bridging the concavity.

5. A snathe press constructed in accordance with claim 4, in combination with a compression spring interposed between the spring strip and the head.

6. In a snathe press. a head and a former, one of which is fixed, the other of whichis movable, the former having a crown and concaved seats on each side of the crown. the head being shaped to conform to the crown, and including a concavity coacting with the crown: and a compression spring carried by the head and located in the concavity.

7. A snathe press constructed in accordance with claim (3, in combination with compression springs carried by the seats of the former.

8. In a snathe press, a head and a former, one of which is fixed, the other of which is movable the former having a crown and concaved seats on each side of the crown, the head being shaped to conform to the crown and the seats of the formenand including a concavity coacting with the crown of the former; spring stripsassembled with the crown and projecting in front of the seats in spaced relation thereto; and a spring strip assembled at one end with the head and bridging the concavity of the head.

9. A snathe press constructed in accordance with claim 8, in combination. with a compression spring interposed between the head and the spring strip; and compression springs interposed between the former and the spring strips of the former.

10. In a snathe press, a supporting structure; a head carried thereby; a former movable on the supporting structure and cooperating with the head to put the horizontal bends into a snathe; a removable form carried by the supporting structure; a presser movable on the supporting structure and coacting with the form to put the vertical bends into a snathe; and means actuated by the former and coacting with the form, to displace the form from its working position, whereby the form may be grasped for removal.

11. In a snathe press, a supporting structure; a head carried thereby; a former movable on the supporting structure and coopcrating with the head to put the horizontal bends into a snathe; a removable form carried by the supporting structure; a presser movable on the supporting structure and coacting with the form to put the vertical bends into a snathe; and a lever fulcrumed on the supporting structure, the lever coacting with the form to displace the form from its working position, whereby the form may be grasped for removal, the former having means for engaging the lever, to cause the lever to coact with the form.

19. In. a snathe press, a supporting structure; a head carried thereby; a former movable on the supporting structure and cooperating with the head to bend a snathe blank; :1 flexible snathe blank jacket interposed between the formcr and the head; side members pivoted to the supporting structure for movement in a direction substantially at right angles to the direction in which the former moves; means for connecting the side members with the ends of the snathe blank jacket; yieldable means coacting with the side members, to swim the same outwardly and to straighten the acket; means for ap plying an end pressure to the snathe blank; and mechanism operatively connecting the last specified means with the former.

13. In a snathe press, a supporting structure; a head carried thereby; a former movable on the supporting structure and coacting with the head to bend the snathe blank; a flexible snathe blank jacket interposed be tween the former and the head; side members pivoted to the supporting structure for movement in a direction substantially parallel to the direction in which the former moves; means for connecting the side members with the ends of the snathe blank jacket; yieldable means coacting with the side members to swing the same outwardly, thereby to straighten the snathe blank jacket; means for applying end pressure to the snathe blank; and mechanism for connecting the last specified means with the and for movement in a direction substantially parallel to the direction in which the former moves; means for connecting theside members with the snathe blank jacket; yieldable means coope'ating with the side members to swing the same outwardly, thereby to straighten the snathe blankjacket; means for applying end pressure to the snathe blank; and mechanism for operatively connecting the last specified means with the former.

15. In a snathe press, a supporting structure; a head thereon; a presser movable on the supporting structure toward and away 7 from the head; a form on the supporting structure between theformer' and the head; a presser movable between thehead and the former and coacting with the form; a plunger assembled-with the presser and movable in the supporting structure; a toggle having its'ends connected respectively with the plunger and with the supporting structure; a" radius rod mounted to swing on the supporting structure; a pitman connecting the intermediate portion of the radius rod with the intermediate portion of the toggle; a slide mounted to reciprocate on the supporting' structure; means for connecting the slide with the radius rod; and mechanism for actuating the former, said mechanism including a part coacting with the slide.

16. In a snathe press, a supporting structure; a head thereon; a presser movable on the supporting structure toward and away from the head; a form on the supporting structure between the former and the head; a presser movable between the head and the former and coacting with the form; a plung'er assembled with the presser and movable in the supporting structure; a toggle having its ends connected respectively with the supporting structure and with the plunger; a radius rod mounted to swing on the supporting structure; a pitman connecting the intermediate portion of the radius rod with the intermediate portion of the toggle; a slide mountedtoreeipro'cat'e'on the supporting structure; means for connecting the slide with the radius rod; a second toggle having its ends pivoted respectively to'the supporting structure and to the former; a wheel ournaled on the supporting structure; and a pitman forming an operative connection between the intermediate portion of the second toggle and the wheel, the slide having a projection wherewith the lower end of the pitman eoactsr 17. In a snathe press a supporting structure; a head thereon; a former movable on the supporting structuretoward and away from the head; a form on the supporting structure between the :former and the head; a presser movable between the head and the former and coacting with the form; means for moving the presser in one direction, to cause the same to coact with the form; and mechanism actuated by the former,when the latter is retracted from the head, to move the presser away from the form.

18. In a snathe press,a supporting structure; a head thereon; a former mounted to move on the supporting structure toward and away from the head; a form on the supporting structure between the formerand the head: a presser movable between the head and the former and coacting with the form; means for moving the presser toward the form; an arm pivoted at one end to the supporting structure; means for pivotally assemblingthe other end of the arm with the presser; and a projection on the former and coacting with the arm to move the presser away from the form, when the former" is retracted.

19. In a snathe press, a supporting structure; a head thereon; aformer movable on the supporting structure toward and away from the head; a form on the supporting structure between the-former andthe head; a presser movable between the head and the former and coacting with theform; means for moving the presser toward the form; an arm pivoted at one end-to the: supporting structure; means for pivotallyconnecting the other end of the arm with the former, the arm including an inclined part wherewith the former contacts, when the former is retracted, to move the presser away from the form. V

20. Ina snathe press, a supporting structure; a head thereon; a former movable on the supporting structure toward and away from the head; a form on the supporting structure between the former and the head'; a presser movable between the head andthe former and coacting with the form; a plunger assembled with the presser and movable in the supporting structure; a toggle having its ends pivoted respectively to the plunger andthe supporting structure; aradius rod mounted to swing on the supporting structure; a pitman fiorming a; connection 7 rod and to aid in breaking over the toggle;

between the radius rod and the intermediate In testimony that I claim. the foregoing: portlon of the toggle; a sprlng earned by as my own, I have hereto afllxed my sigma w the supportlng structure and engagmg' the tare 1n the presence of two wltnesses.

IICllLlS 10d to and m advanom the Iachus GEORGE M FENN an actuating means; and mechanism for Witnesses:

operatively connecting the actuating means RAYMOND STANTON, Wlth the former and wlth the rachus rod. R. R. MCLEEK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G.

Images