US1114754A - Rule and lead cutter. - Google Patents

Description

H. G. HANSEN.

RULE AND LEAD CUTTER.

APPLICATION FILED FEB. 20, 1914. 1,1 14,754, Patented Oct. 27, 1914.

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THE NORRIS F'EYERS 60.. PHOTO-LITHQ. WASHINGTON.

H. O. HANSEN.

RULE AND LEAD CUTTER.

APPLICATION FILED FEB. 20, 1914.

Witnesses. .Mm

Patented 0ct..2,7, 1914.

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lnvenTor. HansC.Hc1ns'en fwwaw ATTy's.

THE NORRIS PETERS 60., PHOTO-LITHJU WASHINGTON. D C.

HANS G. HANSEN, OF NEWTON, MASSACHUSETTS.

RULE AND LEAD CUTTER.

Specification of Letters Patent.

Application filed February 20, 1914. Serial N 0. 820,058.

To all whom it may concern Be it known that I, HANs O. HANSEN, a citizen of the United States, and resident of Newton, county of MiddleseX, State of fication, like characters on the drawing representing like parts.

This invention has reference to a machine for cutting strips of metal or other material into desired lengths and is designed primarily for use in cutting brass rules, leads and slugs of various thicknesses such as employed in printing. v 6

Thin materials such asrules, leads, etc., are curved by the action of a cutter if the shearing blades operate at an angle, whereas if the shearing edges of the blades are substantially parallel for cutting such materials, the severed pieces are fiat. Thick materials, however, such as slugs are much more easily out if the shearing edges are angularly positioned. Accordingly, my present invention aims to provide an improved cutter in which the blades may be adjusted to the most eflicient angle for the particular material to be cut.

Another object is to provide such a machine which will properly support the material to be cut regardless of the length and will insure the pieces being cut to the desired length with precision and accuracy.

Another whereby pieces of the same length as a given sample piece may be cut off without the trouble of measuring the sample.

Another object is to provide a device in which the parts shall be strong and durable and arranged to secure the cutting of heavy and thick pieces as well as light and thin pieces with the application of comparatively small power.

Another object is to provide a construction in which the cutting action is opposed by spring pressure acting to restore the shearing blades to open position, and in which the means for adjusting the shearing blades to the required angle is also opposed by spring pressure, and in which in the preferred form a single spring secures both of these functions.

These and other objects of the invention will appear more fully from the following description and accompanying drawings,

object is to provide means.

and the novel features will be particularly pointed out in the claims.

The drawings illustrate a preferred form of machine embodying my invention, and suitable for use as a printers rule, lead and slug cutter.

In the drawings, Figure l is a plan view of the machine; Fig. 2 is a rear elevation of the same; Fig. 8 is a sectional View taken on the line 38, Fig. 2; Fig. tie a sectional view taken on the line 4+4, Fig. 1; Fig. 5 is a sectional view taken on the line 55, Fig. 3; Fig. 6 is a sectional view taken on the line 6-6, Fig. 2, showing the parts in position for cutting thin material; and Fig. 7 is a sectional view similar to Fig. 6 but showing the parts adjusted for cutting thick materials. I

Referring to the drawings in detail, 1 designates a base consisting preferably of a casting presenting a bed or material support 2, and having legs 3, 4 and 5. The cutting mechanism comprises a fixedblade 6 secured to the bed plate and a movable cooperating blade 7 carried by a C-shaped arm 8.

The bed or material support is shown as extending to oneside of the fixed blade and is, provided With a shoulder 9, thus forming a guideway for the strip of'material. The surface of the bed above this shoulder is graduated to any desired scale as indicated at 10 and may conveniently be marked to designate ems, thus providing convenient means for cutting strips of desired length.

The two shearing blades broadly considered are supported in blade carrying members, the lower one by that portion of the bed plate to which it is immediately fastened and the upper one by that portion of the C- shaped arm to which it is immediately fastened, and any convenient means may be provided to adjust the relative angular position of these blade carrying members. In the machine illustrated this result is secured by forming the blade carrying member of the upper shearing blade integral with the C- shaped arm 8 and rendering that arm relatively adjustable to the lower blade carrying member by means of anadjustable auXiliary support 11 in such a manner as to raise or lower the pivot of the C shaped arm, but the invention broadly considered is not restricted to this construction, which is here presented as the preferred form. The auxiliary support may conveniently be pivoted to the base as at 12 andcontrolled by means Patented Oct. 2'7, 1914. i

of an eccentric 13 rotatably mounted. in the frame and operating in a hole 14 in the auxiliary support.

The position of the eccentric is controlled by a handle 15 pivoted in a slot in one end of the eccentric and having a pin 16 adapted to project-into any one of a series of holes 17 in a plate 18 secured in the frame. A. spring 19 operates to press this lever toward the plate. I thus provide means whereby the shearing edges of the blade may be adjusted to lie substantially parallel as they approach each other for cutting thin strips such as rules or leads, orby a simple adjustment of the handle 15 the pivot of the arm 8 may be raised to such an extent that the upper blade will approach the lower blade at a considerable angle as indicated most clearly in Fig. 7. By this means thin pieces may be cut without bending or curving the same and thick pieces may be cut by the more powerful and ethcient diagonal stroke.

The arm 8 is curved to extend under the support and is connected at the lower endto an operating lever 20 thus leaving the top of the machine free and providing convenient access to the material support and shearing blades. The operating lever is pivoted to the frame as indicatedat 21 and may be connected'to the arm 8 by any convenient means. In the form shown sockets 22 and 23 are provided in the lever and in the end of the arm, respectively, to receive the ends of a compression link 2-1. The link is of substantially the shape of a dumbbell in longitudinal section andits width is equal to the thickness of the lever 20-and arm 8 so that the action of the lever will give the arm a movement about its pivot without causing any lateral strain thereon. The operating lever and link thus have no tendency to throw the blades out of alinement. The sockets may be conveniently of such a shape as to permit the insertion of the link laterally butprevent its withdrawal longitudinally, and the socket 22 in the lever is so positioned that the projecting boss 25 will prevent accidental removal of the link laterally. The link can easily be removed when desiredby first removing the pivot pin 21 of the lever 20. The downward movement of the lever is limited by a stop 26 and its upward movement is limited by engagement with the base as indicated at 27; A- coiled spring 28 connected to the arm 8 at 29 and to the auxiliary support at 30 returns the arm to initial position after the cutting operation, and has the additional function of urging the auxiliary support upwardly about its pivot. The spring thus holds the auxiliary support against the, eccentric at all times, the eccentric and spring at all times acting in opposition to each other. The rotation of the eccentric thus causes the desired adjustment of the auxiliary support.

Upon operation of the device such strain as is exerted upon the pivot of the arm 8 is in an upward direction and this is resisted by the eccentric so that the auxiliary support .is positively held in position. This construction makes it possible to employ an eccentric pin of simple and cheap construction. The pin shown consists of a cylindrical shaft having its central part turned down to present a reduced portion of sufiicienteccentricity to provide the desired adjustment. It is to be noted that there is a distinct shoulder at each end of the central eccentric portionv extending entirely around the pin as clearly indicated in Figs. 6 and 7, that is, the central and outer portions are not tangent to the sam plane at any point. The auxiliary support when positioned against the central portion will therefore always lie betwenthese shoulders and prevent longitudinal'movement of the pin. This pin may be inserted by so-positioning the auxiliary support that the holes in the base and in the auxiliary support are in alinement. The spring 28 holds the auxiliary support against the reduced eccentric portion of the pin and between the shoulders thereof thus holding the pin against longitudinal displacement. This spring is preferably positioned in a recess 31 in the arm thusbeing concealed, whereby a neat appearance is pre sented;

An adjustable gage 32 is provided presenting a stop to facilitate cutting pieces ofany desired length and this gage is preferably attachable at either side of the shearing blades. The may thus be used in the position shown for cutting either long or short pieces or may be shifted to the opposite side for more conveniently cutting a number of short pieces. The shown is adjustably held in position by a gage clamp 33 which may be attached to either of two similar square clamp-receiving extensions 3 1 and 35 formed on the base. I provide adjustable stops 36 and 37 to determine the position of the clamp upon the base, each stop consisting of a depending lug and a set screw mounted therein. The clamp shown comprises a block having a square hole 38 to fit either square extension, and a second hole 39 to receive the gage 82. A thumb screw 40 secures the clamp in position. Clamping means is provided to grip the scale and hold it in adjustedposition in the clamp. The clamping means illustrated consists of a spring pressed detent 41 and an eccentric 42 rotatably mounted in the clamp and operable to retract the detent against the pressure of its spring- The eccentric is provided with an arm 18 for convenient operation. The scale is preferably provided with a series of notches 44 into which the end of the spring pressed detent may project, these notches being. placed to correspond with the graduations to facilitate setting the scale in the exact position desired.

I have illustrated a convenient means whereby one or more pieces may be cut to sired position of the scale.

size to correspond with a given sample without the necessity of measuring such sample. A shoulder 4:5 upon the scale near one end is so positioned that when the clamp is positioned, as shown, the distance between this shoulder and the opposed face of the clamp will be equal to the distance between the opposite end of the scale and the shearing edges ofthe blades. The sample may be placed between the shoulder and the clamp thus accurately determining the de- A thumb screw 46 is provided to hold the scale in adjusted position when thus cutting to sample. The

- pieces cut ofi? between the end of the scale and the shearing blades will then be of the same size as the sample. By this means the trouble of measuring the sample and consequent sources of error are eliminated.

/ I have illustrated a device in which the ma- I have illustrated a preferred form of scale but it will be obvious to one skilled in the art that various modifications may be made in the type of scale to be used.

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

1. A cutter comprising a material support, a shearing blade connected thereto, a cooperating shearing blade, a pivoted arm carrying said cooperating shearing blade and means to vary the relative position of the material support and the pivot of said arm whereby the angle between the cutting edges of the shearing blades may be varied.

2. A cutter comprising a lower fixed shearing blade, a support extending transversely to and at one side of said shearing blade and presenting a guideway, an adjustable auxiliary support, an upper blade, a lever carrying said upper blade and pivoted to said auxiliary support whereby the angle between the shearing blades may be varied adjusted position whereby the position of the pivot of said arm maybe varied relative to the material support to thereby vary the anglevbetween the cutting edges of said blades-and means to operate the pivoted arm.

4. A cutter comprising a lower fixed blade, a main support extending transversely toand at one side of said blade, an auxiliary support pivotally connected to said support and adjustable relatively thereto, an upper movable blade, an arm carrying said upper blade pivotally connected to.

said auxiliary support and extending beneath the main support, an operating lever' pivoted to the main support, and a connection between said arm and operating lever consisting of a compression link having rounded ends fitting into sockets in the arm and lever, respectively.

5. A cutter comprising a lower fixed blade, a material support extending transversely to and at one side of said blade, an upper movable blade,a C-shaped arm carrying said upper blade and pivotally connected to and extending beneath'the support, an operatinglever pivoted to the support and a connection between said arm and operating lever beneath the material support COIlSlSli. ing of a compression link having rounded ends fitting into sockets in the arm and.

lever, respectively.

6. A cutter comprising'a base presenting a material support, shearing blades operable to sever the material resting on said material support, said base being provided with gage clamp receiving means at both sides of the shearingblades, a gage, and a gage clamp attachable to'either of said gage clamp receiving means to hold the gage in adjusted position'relatii' 'e to the material support, and on either side of the shearing blades.

7. A cutter comprising a base presenting a material support, shearing blades operable to sever the material resting on said material support, said base being-provided with gage clamp receiving means at both sides of the shearing blades, a gage, agage clamp attachable to either of said gage clamp receiving means to hold the gage in adjusted position relative to the material support, and ad justable means to determine the position of the gage clamp when applied to one of said gage clamp receiving means.

8. A cutter comprising a lower fixed shearing blade, a main support extending transversely to and at one side of said shearing blade and presenting a guideway, an auxiliary support adjustably connected to the main support, an upper shearing blade, a C-shaped lever carrying said upper shearing blade and pivoted to the auxiliary support and extending beneath the guideway,

means connected' withsaid lever beneath the guideway to operate said lever to bring. the shearing blade into operation to sever the material.

9. A cutter comprising, a fixed" she'zaringv blade, a materialsupport presenting a guideway extending transversely of and to one side of said fixedblade, a gage clamp secured to the material support, a gage ad justable in said gage clamp and extending longitudinally of the material support, said gage having a shoulder so positioned; that the space between the shoulder and the opposed face of the clamp will always be equal to the space between theend of the gage and the cutting edge of the fixed shearing blade whereby sample pieces may beplaced between said shoulder andthe face of the gage to determine the position of the gage when itis desired to-cut other pieces of the same size as the sample piece, amovable shearingblade, an arm carrying said movable blade, and means for operatingsaid armto sever the material.

10. A cutter comprising a material support, a shearing, blade connected'thereto, a;

cooperatingshearingblade, a blade carrying member to which said cooperating blade'is secured, said blade carrying member being. adjustable to vary the relative angular position in which the cooperating blade approaches the fixed blade, and operating means for said blade carrying member.

11'. A' cutter comprising a lower fixed blade, amain support extending transversely to the blade; an auxiliary support adjustably connected to said main support, an upper movable blade, an arm carrying said upper blade movably connected'to said auxiliarysupport and extending beneath the main support, alever fulcrumed on-the main support and operatively connected to said armbelow the main support to exert its line of thrust on said arm in substantially: the direction of movement of the upper blade.

12. A- cutt'ercomprising abase presenting pivoted thereto, a C-shaped arm pivoted intermediate its ends to said adjustable supaort sarin means 006 aeratin with said I adjustable support and Cshaped arms to urge the adjustable support to elevated positionand the C-shaped arms to initial position, cooperating shearing blades secured to the base and to one end of the C-shaped,

arm, respectively, and operating means en theother end of said C-shaped arm, adjusting means acting in opposition to the spring" means for controlling the position of the adjustable support.

14h A cutter comprising a base presenting a material support, a fixed shearing blade connected to said material support, a C- shaped arm'pivotally connected to said base intermediate its ends, a movable shearing blade securedto one end of said C-shaped arm and cooperating with said fixed shearing. blade, operating means connected to the other end of said C-shaped arm and acting thereupon substantially in the direction of movement of said movable blade whereby comparatively little strain is put upon the pivot of said arm.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HANS C. HANSEN. Vitnesses:

ELIZABETH G. MORRIS, T'HoMAs J. DRUMMOND.

Copies oftlfls patentflmay beobtained. for five cents eacln by addressing the Commissioner of Patents,

Washington, D. 0.

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