US1205179A - Combined trimming and punching machine. - Google Patents

Description

- W. EVANS.

COMBINED TRIMMlNG AND PUNCHING MACHINE.

APPLICATION FILED SEPT. 13. 1915.

Patent-ed Nov. 21, 1916.

6 SHEETS-SHEET I.

INVENTOR Anomm wwq-zs r crERs co.PNom-LlrNaJvAsmNumN. o c

W. EVANS.

COMBINED TRIMMING AND PUNCHING MACHINE.

APPLICATION FILED SEPT. 13. 1915.

Patented Nov. 21, 1916.

6 SHEETSSHEET 2.

6 INVENTOR WITNESSES ATTORNEYS W. EVANS.

COMBINED TRIMMING AND PUNCHING MACHINE.

APPLICATION FILED SEPT-13.1915- 1,205,179. Patented Nov. .21, 1916.

5 SHEETS-SHEET 3.

INVENTOR WITNESSES V ATTURNEW w. EVANS.

COIVBINED TRIMMING AND PU NCHING MACHINE.

RPPLICATION FILED SEPT. 13- 1915.

Patented Nov. 21, 1916.

6 SHEETS-SHEET 4.

INVENTOR ATTORNEYS Q? R N NY? Qaggagg s E S s E N T W W. EVANS.

COMBTNED TRIMMING AND PUNCHING MACHTNE.

APPLICATION FILED SEPT. I3. 1915.

SHEET 6.

Patented Nov. 21, 1916.

6 SHEETS INVENTOR M WITNESSES ATTORNEYS WILLIAM EVANS, OF OAK LANE, PENNSYLVANIA, ASSIGNOR TO JOHN EVANS SONS, OF PHILADELPHIA, PENNSYLVANIA, A FIRM CONFUSED 0F \VILLIAM EVANS, ROBERT EVANS, AND JOHN H. EVANS, ALL OF PHILADELPHIA, PENNSYLVANIA.

COMBINED TRIMMING AND PUNCI-IING MACHINE.

Application filed September 13, 1915.

To all whom it may concern Be it known that I, l/VILLIAM EVANS, a citizen of the United States, residing at Oak Lane, in the county of Montgomery, State of Pennsylvania, have invented a new and useful Combined Trimming and Punching Machine, of which the following is a specification.

My invention relates, primarily, to the art of manufacturing vehicle springs and par ticularly to that art in so far as it is concerned with the making of heavy springs of high-grade steel for use in vehicles of the general type of automobiles and trucks.

It comprehends almachine so organized as not only to simultaneously trim both ends of the plates or bars, but also and at the same time to punch holes through, or form studs in, them at any point between the ends; and also just prior to, or simultaneously with, the performance of both of these operations, to straighten the bar in case it should have become warped in the heating.

The machine, therefore, performs the several operations of cutting the plate to the desired length, trimming both of its ends to the desired outline and contour, punching or nibbing it at the point desired, and straightening it in the event of its requiring straightening.

In connection with the assemblage of the special mechanisms which simultaneously accomplish the foregoing steps or operations upon the plate, my invention further comprehends such prime-moving and connective mechanism as, under the control of the operator, will effect the simultaneous operation of said special mechanisms,the machine as an entirety being provided with means for the relative adjustment of its several positively-operating special mechanisms prior to their being thrown into simultaneous action by the prime-moving and connective mechanism.

Although I prefer a machine of the special organization represented and described, I regard it as typifying merely an organized machine adapted for the purpose recited, and my invention in its details comprehends specific constructions represented and described, and hereinafter specifically claimed.

For the purpose of illustrating my invention, I have shown in the accompanying drawings a certain type and embodiment of Specification of Letters Patent.

Serial No. 59,414.

it which is at present preferred by me, because in practice it will give satisfactory and reliable results. It is to be understood, however, that the various instrumentalities of which my invention consists can be variously arranged and organized, and that my invention is not, therefore, limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

In the accompanying drawings, Figures 1 and 2 together represent a side elevation of a trimming machine embodying my invention, all of the parts being shown in the positions which they occupy before they are brought into action. Fig. 3 represents an end elevation of the machine viewed from the right hand sides or ends of Figs. Q'and 5. Figs. 4: and 5 together represent a plan. of the entire machine. Fig. 6 represents the upper or outer surface of one of the cutting and trimming mechanisms of my machine, the view being taken in the direction of the arrow 0 upon Fig. 1, and the parts being in the position represented in said figure,that is to say, with the two cutters of one of the pairs of cutters, separated. Fig. 7 represents in transverse section on the dotted line 7 y of Fig. 6, one of the fixed cutters. Fig. 8 represents in end elevation and viewed from above, the moving cutter shown in Fig. 9. Fig. 9 represents in plan said moving cutter removed from its frame. Fig. 10 represents in side elevation the cutter represented in Figs. 8 and 9. Fig. 11 represents a detail of a bevel pinion, driven shaft and shaft crank which operate a moving cutter. Fig. 12 represents a section of the cam shaft and eccentric which occasion the operation of the rocker of the rack and segment gear which operates the punching die. Fig. 13 represents a fragmentary detail of the plate or bar to be operated upon, laid upon a fixed cutter. Figs. 14.- and 15 respectively represent fragmentary details of a fixed and a movable cutter and of the plate or bar to be acted upon, in the positions which said plate or bar occupies, in Fig. 14:, before the action of the dies and, in Fig. 15, after their action. Fig. 16 represents a plan and Fig. 17 a longitudinal section of a plate or bar after it has been operated upon to trim its ends and punch a hole through it. Fig. 18 represents a longi' tudinal section of a bar after it has been struck with a nibbing die instead of a punch.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings, 1 designates the base frame-work of the machine, of any preferred formation but preferably of the form of end standards which support a longitudinally extending table or carrying frame 2, from the opposite ends of which spring standards 3 and 4, provided with bearings 5 and 6.

The prime-mowing and connective mecham'sm.7 designates a gear shaft journaled in the bearings 5 and (3, the rotation of which, as hereinafter explained, occasions the rotation of the driven bevel pinions of each pair of the movable cutter dies.

8 designates the main driving shaft supported upon carrying brackets 9 springing from the rear of the table frame, and provided with bearings 10 for said driving shaft. Power is imparted to the main driving shaft by a tight pulley 11,a loose pulley 12 being also preferably keyed to said shaft.

13 designates a counter shaft supported in bearings 14 upon the table frame, and driven through the spur pinion 15 and spur wheel 16. This counter shaft, through the spur pinion 17 and the spur wheel 18, in turn drives the cam shaft 19, which cam shaft is supported in the bearings 20, 20 20 20 upon the frame, and carries the cams 21, 22, 2S and 24 which together operate the barstraightening frame 59, which travels in frameways 60 on the table frame, as hereinafter explained.

The cam shaft, driven as described, is divided into two members between the bearings 20 and 20 and provided with a clutch hereinafter described, and drives the gear shaft 7, conveniently by means of a sprocket chain 27 traveling upon a sprocket wheel 28 on said gear shaft and a sprocket wheel 29 on the cam shaft 19.

Such is a convenient prime-moving and connective mechanism between the main driving shaft 8 and the cam shaft 19 which operates both the bar-straightening mechanism and the punching or nibbing mechanism, and also the gear shaft 7 which operates the cutting and trimming mechanism, the organization of these special mechanisms is as follows The bar cutting and trimming mechanism-As already explained, in my present invention 1 use in duplicate a preferably oppositely counterpart assemblage of the cutting mechanisms of the machine which forms the subject-matter of my application for patent referred to, and it is therefore unnecessary in this application to describe more than one of said mechanisms, or to apply to them in the drawings and herein other than duplicate numerals. Each of the bar cutting and trimming mechanisms is carried upon a movable head 30, being a casting or framing preferably disposed at an angle of 45 with reference to the plane of the top of the table or carrying frame 2-. The head is extended upwardly in the form of a bracket 31 crowned with a splined bearing 32 through which is journaled one end portion of the gear shaft 7 which is formed with a splineway 33 for the spline 34 of a driving bevelpinion :35 which meshes with a driven bevel pinion 36 fixed on a driven shaft 37 suitably journaled within the movable head 30. The driven shaft is formed with a Wrist pin 38 (Figs. 1, 2 and 6) which passes through and, in the rotation of the driven shaft, acts upon a traveler 39 by a block housed within what 1 term a traveler way 40 formed in the cutter carrier 41. The office of this traveler in its both up and down and lateral travel, is to raise and lower the cutter carrier 41 as an entirety, and in so doing to impart to the moving member 42 of the cutter its up-anddown or in-and-out movement relatively to the fixed member 43 of the cutter.

It is unnecessary to describe in detail the mounting of the cutter carrier and moving cutter, except to say that the moving cutter 42 is retained by a plate 44, and that the cutter carrier 41 travels within suitably mounted and adjusted retaining plates 45 connected with the movable head 30,-and further to say that the fixed cutter 43, in the form shown is provided with a cutting face 46 upon which one end of the bar to be trimmed is adapted to be rested, and that the moving cutter is formed with a convex surface 47 and the fixed cutter with a corresponding concave or channeled groove 48.

The mounting of the fixed cutter with regard to the movable head is such as good shop conditions may dictate,a cap plate 49 connected by a bolt 50 with a retaining plate 51 on or being a part of the movable head, being a good construction. It is also unnecessary to explain that the form of the cutters may be varied. In fact, every fea ture with relation to these cutters and their mode of relative operation and action upon the end of a bar to cut it off to a desired outline and to obliquely trim or bevel it, is fully described in my application for patent referred to. Both the fixed and the movable cutters being attached to the movable head 30, travel with it in its travel within a longitudinal slide-way 52 upon the upper surface of the table frame 2. The up-anddown stroke of the movable cutter through the connection of the gears 35 and 36 with the gear shaft 7, is unaffected during any period of the rotation of the gear shaft in the operation of the machine, and whatever may be the position of the movable head within its slide-way 52, because, as already -62 secured to the table frame.

explained, the driving gear or bevel pinion 35 is splined on the gear shaft.

In order to set or adjust each of the movable heads to a predetermined desired position relative to the punching and nibbing mechanism or center of the machine, I find it convenient to resort to a screw-shaft 53, mounted in suitable bearings 5 f depending from the table frame, which passes through a screw-nut 55 extending downwardly from and connected to the movable head, so that the rotation of the screw-shaft will occasion the travel of the movable head to a given distance either from or toward the punching mechanism.

56 designates a pinion fixed on the end of the screw-shaft 53, which is meshed with atoothed hand wheel 57 turning freely on a spindle or axle 58 fixed to the frame of the machine, by the aid of which hand wheel the movable head is adjusted. There being two of these screw-shafts relatively operating with the two movable heads, they are provided with opposite threads, so that they will impart opposite movements to the heads with which they are respectively connected.

It will be understood that this construction enables me to adjust the heads so that they will stand apart at equal distances from the punching mechanism, or be set and adjusted at different distances from'or toward said mechanism so as to permit of the punching or nibbing of a plate at intermediately of its length and at any desired distance nearer to one of its ends than to the other;

The bar straightening meckanism.59 designates a straightening plate or gageframe which lies upon the upper surface of the table frame 2 and has movement transversely of the length thereof in guide-ways 60 which house it and permit of its forward andvback movement. This plate as to its front face is provided with adjusting or gage blocks 61 which coact with generally correspondent adjusting or gage blocks Between those blocks upon the straightening plate 59 and those upon the table frame, there is a supporting surface 63, being a part of or applied to the upper surface of the table frame, upon which the plate or bar to be operated upon is manually introduced from the front of the machine. After the bar has been laid upon the supporting surface 63 in such position that its ends bear the desired relation to the cutting mechanisms then assumed to be adjusted to their desired relative positions, and its intermediate porstraightening plate and those upon the table frame.

In order to adapt the straightening devices for adjustment to bars of different breadths, the adjusting blocks 61 and. 62 are provided with liners 64 of any usual character, and clamped, applied or connected with the blocks by such fastening devices, for instance, as the screws 65.

The forward and back movement-of the straightening plate 59 is conveniently accomplished by the cams 21, 22, 23 and 2% on the cam shaft 19 which make contact with the cam rollers 66, 67, 68 and 69 on the straightening plate.

The rotation of the cam shaft is stopped or started by any desired form of clutch adapted to connect or release the two members of which said shaft is shown as composed. I find it convenient to employ a clutch of the type represented, in which a rocking bar 70 pivoted at 71 and inclined at its outer end, is adapted as to its outer end to be raised or lowered by a treadle 72,controlled for its return to normal by a return-spring.82,-through the intervention of a lifting rod 73 connected with the rear end of the treadle and extending upward to the rocking bar. This rocking bar extends between two clutch collars 74 and 75 on the cam shaft,-and its inclined outer end is adapted when drawn down by the treadle, to encounter a spring-controlled inclined clutch lug 7 6 within the collar 75,

the outwardly extending bolt 77 of which spring and freeing its bolt from the socket in the collar 74. That member of the divided cam shaft which carries the cams 21 to 24 which operate upon the straightening plate 59, when the shaft is unclutched, stops rotating, and so stops the in-and-out movement of said plate, which, in the forward direction, as explained, is occasioned by the action of the cams 21 to 24 upon the cam rollers 66 to 69, and in the rearward direction is occasioned by the action of return springs 80 which are connected with a plate or lugs 81 on said straightening plate. After the depression of the treadle to effect the clutching operation, the unclutching operation will upon the release of the treadle be effected by the expansion of the return spring 82 upon the lifting rod. This stoppage of the cam shaft is intended to take place after the bar has been straightened and acted upon by the cutting dies and the punching or nibbing mechanism.

T e punching or nibbing mechanism. 83 designates a vertically movable frame which I term the punch-frame, mounted in guideways 85 in a housing 84 of any preferred construction and erected upon the table frame preferably mid-way of its length. The base 86 of the housing, as shown in Fig. 1, is laterally beveled and mounted in transverse guideways 87 on the table frame, so that the housing and the punch frame can together be adjusted forwardly or rearwardly of the table frame. Connected with the punch frame in any preferred manner is the punch or nibbing bar 88 which punches or nibs the plate. This bar may be of any preferred character and adjusted with relation to the punchrframe by any work shop expedient. In the construction illustrated, the punch in its descent drives into a punch hole 89 in what I term an anvil die 90 superimposed upon the table frame, which, as illustrated in Fig. 1, is preferably held in place by means of set screws 91, so as to make it possible to employ dies of different sizes to correspond to punches of different sizes and formations. The anvil die may be made to conform to a nibbing die instead of to a punch.

In order to actuate the punch-frame and punch to vertical reciprocation, I find it convenient to employ the following actuating-means:92 is a segment rocker, being a bar pivoted at 93 to the housing of the punch-frame, and at its forward end formed into or provided with a toothed segment 94 the teeth of which are engaged with a rack 95 on the rear face of the punch-frame 88. At its rear end the rocker is pivoted at 96 to the bifurcated end of the arm 97 of an eccentric strap 98 which encircles the eccentric 99 keyed on the cam shaft 19, which in its rotation obviously occasions the rotation of the eccentric and, through said eccentric and eccentric strap, the actuation of the segment rocker.

The foregoing devices to operate the punching mechanism may, of course, be varied in construction, those described being simply well adapted from a mechanical viewpoint to accomplish the desired result.

The operation of the machine so far as it has not already been described, may be stated to be as follows: Assume a plate or bar P, Fig. 13, to have been placed upon the supporting surface 63 of the table frame against the fixed gage blocks 62,and assume, further, that the two movable heads 30 of the cutting mechanisms have been adjusted relatively to each other to the respective longitudinal distances from the punch which it is desired that they should occupy, that is either both equally distant from the punch or one nearer the other, the ends of the plate will then he upon the cutting faces 46 of the two fixed cutters. In this position of the plate, the cutters being adjusted to cut it to its desired ultimate length-the first action of the machine,when started, will be to cause the forward moveinner longitudinal edge of the plateand straighten it with respect to the fixed gage blocks. This straightening having been accomplished, the cutters of the cutting mechanisms and the punch of the punching mechanism will then be brought intoaction'to accomplish their respective purposes, at the instant of the completion of the straightening of the plate and practically simultaneously with it.

The relative movements of the straightening mechanism and the punching mechanism will be effected simultaneously by the appropriate adjustment or timing of the cams on the cam shaft,and the operation of the cutters to outline and obliquely trim both ends of the plate, will be effected simultaneously therewith, by the primemoving and connecting mechanism which directly operates the cutting mechanisms, the straightening mechanism and the punching mechanism, as already described.

It is within the skill of the work-shop to so calculate the teeth of the various gears, select specific devices for the connections of the shafts, and, as explained, adjust the timing of the cams, as successfully and positively to accomplish the desired result.

The prime moving and connecting mechanism which I have illustrated and described is well adapted, from a mechanical view point, to effect the results which it is assembled to accomplish. Obviously, however, other mechanisms of generally equivalent character may be substituted for it.

Reference to Figs. 13 to 18 inclusive of the drawings, will indicate the effect produced upon the plate by the cutting mechanisms and the punching mechanism, and from them it will be understood how the end of the plate which I have marked P, and the hole marked P or the nib marked P are formed. The end P of the plate, as shown in Fig. 15, is left as a scrap or cutoff fragment upon the cutting face l6 of the fixed cutter, while the obliquely cut and outlined edge or end of the plate will be wiped down, so to speak, into the channel 18, smoothed to the desired degree of smoothness, and left without any such thing as resulted from the operation of machines in use prior to the invention of the trimming machine which forms the subject of my application for patent referred to. The operation upon both ends of the plate is, of course, the same as to each of the ends.

It is unnecessary in this application to refer to the facts recited in my application referred to, that although a good construction of the cutting mechanism is one in which one of the die members is fixed and the other movable, yet that the result of the outlining and trimming of the ends of the plate would be equally well accomplished if both were movable, or if their positions were transposed and the recessed die or concave member were made the movable member, and the outwardly rounded die or convex member made the fixed member.

It will now be apparent that I have devised a novel and useful trimming machine, which embodies the features of advantage enumerated as desirable in the statement of invention and the above description, and that while I have in the present instance, shown and described a preferred embodiment thereof which will give in practice satisfactory and reliable results, it is to be understood that such embodiment is susceptible of modification in various particulars without departing from the spirit or scope of the invention as set forth in the claims or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:-

1. A machine of the character stated, which comprises in combination, cutting and trimming mechanism to simultaneously cut off and obliquely trim both ends of a bar, mechanism for punching or nibbing said bar between its ends, and prime moving and connective mechanism for operating said mechanisms.

2. A machine of the character stated, which comprises in combination, cutting and trimming mechanism to simultaneously cut off and obliquely trim both ends of a bar, mechanism for punching or nibbing said bar between its ends, mechanism for straightening the bar in the direction of its length, and prime moving and connective mechanism for operating said several mechanisms.

3. A machine of the character stated, which comprises 'in' combination, duplicate and oppositely-counterpart cutting and trimming mechanisms to simultaneously cut oif and trim both ends of a bar, mechanism for punching or nibbing said bar intermediate of its length, and prime moving and connective mechanism for operating both the cutting and trimming and the punching or nibbing mechanisms.

4. A machine of the character stated, which comprises in combination, duplicate and oppositely-counterpart cutting and trimming mechanisms tosimultaneously out OE and trim both ends of a bar, mechanism for punching or nibbing said bar intermediate of its length, mechanism for straightening the bar in the direction of its length, and prime moving and connective. mechanism for operating the cutting and trimmin'gmechanism, the punching and nibbing mechanism, and the straightening mechanlsm.

5. A machine of the character stated, which comprises in combination, duplicate and oppositely-counterpart cutting and trimming mechanisms to simultaneously cut off and trim both ends of a bar, means for adjusting said duplicate mechanisms to different distances apart, mechanism for punching or nibbing said bar intermediate of its length, and means for operating both said duplicate mechanisms when adjusted and said punching and nibbing mechanisms.

6. A machine of the character stated, which comprises in combination, duplicate and oppositely-counterpart cutting and trimming mechanisms to simultaneously cut off and trim both ends of a bar, means for adjusting said duplicate mechanisms to different distances apart, mechanism for punching or nibbing said bar intermediate of its length, mechanism for straightening the bar 1n the direction of its length, and means for' operating said duplicate mechanisms when adjusted, the punching and nibbing mechanisms, and the straightening mechanism.

7. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other upon said framework, to cut and trim both ends of a bar,mechanism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends,-and means for operating both the cutting and trimming mechanisms andthe punching and nibbing mechanism.

8. A machine of the character stated,

which comprises in combinati0n,a framework provided with a carrying surface for a bar,-duplicate and oppositely counterpart cutting and trimming mechanisms disposed in angular relationship to each other upon said frame-work, to cut and trim both ends of a bar,mechanism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends,mechanism for straightening the bar in the direction of its length,and means for operating the cutting and trimming mechanism, the punching and nibbing mechanism, and the straightening mechanism.

9. A machine of the character stated, which comprises in combination,a frame work provided with a carrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other and movable relatively to each other upon said framework, to cut and trim both ends of a ban -mechanism intermediate of said cutting and. trimming mechanisms for puncln ing or nibbing said bar between its ends, and means for operating both the cutting and trimming and the punching and nibbing mechanisms.

10. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,-duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other and movable relatively to each other upon said frame-work, to cut and trim both ends of a bar,mechanism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends, mechanism for straightening the bar in the direction of its length,-and means for operating the cutting and trimming mechanism, the punching and nibbing mechanism, and the straightening mechanism.

11. A machine of the character stated, which comprises in combination,-a framework provided with a carrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other, movable relatively to each other, and each comprising two cutters one of which has a cutting and carrying face for directing the bar to be out toward the other cutter at an angle to the respective longitudinal axial planes of both cutters, upon said frame-work, to cut and trim both ends of a bar,mechanism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends,and means for operating both the cuttin and trimming mechanisms and the punchlng and nibbing mecha nism.

12. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other, movable relatively to each other, and each comprising two cutters one of which has a cutting and carrying face for directing the bar to be out toward the other cutter at an angle to the respective longitudinal axial planes of both cutters, upon said frame-work, to cut and trim both ends of a bar,mechanism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends,mechanism for straightening the bar in the direction of its length,and means for operating the cutting and trimming mechanisms, the punching and nibbing mechanism, and 'the straightening mechanism.

13. A machine of the character stated, which comprises in combination, cutting and trimming mechanism to simultaneously cut oii and obliquely trim both ends of a bar, mechanism for punching or nibbing said bar between its ends, and prime moving and connective mechanism for occasioning the simultaneous operation of said mechanisms' 1%. A machine of the character stated, which comprises in combination, cutting and trimming mechanism to simultaneously cut off and obliquely trim both ends of a bar, mechanism for punching or nibbing said bar between its ends, mechanism for straightening the bar in the direction of its length, and prime moving and connective mechanism for occasioning the simultaneous operation of said mechanisms.

15. A machine of the character stated, which comprises in combination, duplicate and oppositely-counterpart cutting and trimming mechanisms to simultaneously cut off and trim both ends of a bar, mechanism for punching or nibbing said bar intermediate of its length, and prime moving and connective mechanism for occasioning the simultaneous operation of both the cutting and trimming and the punching or nibbing mechanisms.

16. A machine of the character stated, which comprises in combination, duplicate and oppositely-counterpart cutting and trimming mechanisms to simultaneously cut off and trim both ends of a bar, mechanism for punching or nibbing said bar intermediate of its length, mechanism for straightening the bar in the direction of its length, and prime moving and connective mechanism for occasioning the simultaneous operation of the cutting and trimming mechanism, the punching and nibbing mechanism, and the straightening mechanism.

17. A machine of the character stated, which comprises in combination, duplicate and oppositely-counterpart cutting and trimming mechanisms to simultaneously cut off and trim both ends of a bar, means for adjusting said duplicate mechanisms to different distance apart, mechanism for punching or nibbing said bar intermediate of its length, and means for occasioning the simultaneous and counterpart movements of said duplicate mechanisms when adjusted and of the punching and nibbing mechanisms.

18. A machine of the character stated, which comprises in combination, duplicate and oppositely-counterpart cutting and trimming mechanisms to simultaneously cut off and trim both ends of a bar, means for adjusting said duplicate mechanisms to different dlstances apart,mechanism for punching or nibbing said bar intermediate of its length, mechanism for straightening the bar in the direction of its length, and means for occasioning the simultaneous and counterpart movements of said duplicate mechanisms when adjusted, of the punching and nibbing mechanisms, and of the straightening mechanism. A 19. A machine of the character stated,

trimming mechanisms and the ends,and means for occasioning the simultaneousv operation'of boththe cutting and punching and nibbing mechanism.

20. A machine of the character stated,

which comprises in combination,a frame work provided with a carrying surface for a ban-duplicate and oppositely counterpart cuttmg and trimm ng mechanisms disposed in angular relationship to each other upon said frame-work, to cut and trimboth ends of a bar,mechan ism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends, mechanism for straightening the bar in the direction of its length,and means for occasioning the simultaneous operation of the cutting and trimming mechanism, the punching and nibbing mechanism, and the straightening mechanism.

21. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,duplicarte and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other and movable relatively to each other upon said frame-work, to cut and trim both ends of a bar,mechanism intermediate of said cutting and trimming punching or nibbing said bar between its ends,-and means for occasioning the simultaneous operation of both the cutting and trimming and the punching and nibbing mechanisms.

22. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other and movable relatively to each other upon said frame-work, to cut and trim both ends of a bar,mechanism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends,mechanisn1 for straightening the bar in the direction of its length,-and means for occasioning the simultaneous operation of the cutting and trimming mechanism, the punching and nibbing mechanism, and the straightening mechanism.

23. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,duplicate and oppositely-countera frame mechanisms for part cutting and trimming mechanisms disposed in angular relationship to each other, movable relatively to each other, and each comprising two cutters one of which has a cutting and carrying face for directing the bar to be out toward the other cutter at an angle to the respective longitudinal axial planes of both cutters, upon said framework, to cut and trim both ends of a bar,. mechanism intermediate of said cutting and trimming mechanisms for punching or nibbing said bar between its ends,and means for occasioning the simultaneous operation of both the cutting and trimming mechanisms and the punching and nibbing mech anism.

24:. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,-duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other, movable relatively to each other, and each comprising two cutters one of which has a cutting and carrying face for directing the bar to be out toward the other cutter at an angle to the respective longitudinal axial planes of both cutters, upon said frame work, to cut and trim both ends of a bar,- mechanism intermediate of said cutting and trimming mechanisms for punching or.

nibbing said bar between its ends,'mechanismfor straightening the bar in the direction of its len'gth,and means for occasioning the simultaneous operation of the cutting and trimming mechanisms, the punching and nibbing mechanism, and the straightening mechanism.

25. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,-duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to'each other, movable relatively to each other, and each comprising a movable cutting die having a convex under face, means for actuating said die, and a fixed die having a concave cutting face, a longitudinally extending concave portion and a rearwardly extending angular face adapted to receive the bar,mechanism intermediate said cutting and trimming mechanisms for punching or nibbing said bar between its ends,and means for operating both the cutting and trimming mechanisms and the punching and nibbing mechanism.

26. A machine of the character stated, which comprises in combination,a framework provided with a carrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other, movable relatively to each other, and each comprising a movable cutting die having a convex under face, means for actuating said die, and a fixed die having a concave cutting face, a longitudinally extending concave portion and a rearwardly extending angular face adapted to receive the bar,mechanism intermediate said cutting and trimming mechanisms for punching or nibbing said bar between its ends,and means for occasioning the simultaneous operation of both the cutting and triimning mechanisms and the punchingand nibbing mechanism. 27. A machine of the character stated, which comprises in combination, a framework provided with a carrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other, movable relatively to'each other, and each comprising a movable cutting die having a convex under face, means for actuating said die, and a fixed die having a concave cutting face, a longitudinally extending concave portion and a rearwardly extending angular face adapted to receive the bar,mechanism intermediate said cutting and trimming mechanisms for punching or nibbing said bar between its ends,mechanism for straightening the bar in the direction of its length,'and means for operating the cutting and trimming mechanisms, the punch- Copies of this patent may be obtained for ing and nibbing mechanism, and the straightening mechamsm.

28. A machine of the character stated,-

which comprises in combination,a frame work provided with acarrying surface for a bar,duplicate and oppositely-counterpart cutting and trimming mechanisms disposed in angular relationship to each other, movable relatively to each other, and each comprising a movable cutting die having a convex under face, means for actuating said die, and a fixed die'having a concave cutting face, a longitudinally extending concave portion and a rearwardly extending angular face adapted to receive the bar,mechanis1n intermediate said cutting and trimming mechanisms for punching or nibbing said bar between its ends,-mechanism for straightening the bar in the direction of its length,and means for occasioning the simultaneous operation of the cutting and trimming mechanisms, the punching and nibbing mechanism, and the straightening mechanism.

In witness whereof I have hereunto signed my name this ninth day of September, 1915. V

. WILLIAM EVANS. Witnesses:

J. BONSALL TAYLOR, HENRY PLANT.

five cents each, by addressing the Commissioner of Patents, Washington, D. G. r

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