US1552367A - Wire-shaping apparatus - Google Patents

Description

Sept. 1, 1925.

V. J. WATRAL WIRE SHAPING APPARATUS Filed Feb. 16, 1925 3 Sheets-Sheet 1 Z 9 m M M n I. A aw an. W 1

WITNBSES Sept. 1, 1925.

V. J. WATRAL WIRP SHAPING APPARATUS ,FiledFe 16. 1925 a Sheets-Sheet 2 INVENTOR ATTORNEYS V. J. WATRAL WIRE SHAPING APPARATUS Filed Feb. 16.

Sept. 1, 1925.

'1925 3 Sheets-Sheet 3 I fl /9:

INVENTOR Vail/1 BY I ATTORNEYS Patented Sept. 1, 1925.

UNITED STATES VALENTINE J. WATRAL, OFMASPETH, NEW YORK.

WIRE-SHAPING APPARATUS.

Application filed February 16, 1925. Serial No. 9,520.

To all whom it may concern:

Be it known that I, VALENTINE J. VVATRA a citizen of Czechoslovakia, and a resident of the city of New'York, Maspeth, borough of Queens, in the county of Queens and State 01'? New Yorlnhave invented a new and Improved VE' TIG'ShZZPlDg Apparatus, of which the followin g is a full, clear, and exact description.

This invention relates to wire-shaping apparatus, an object of the invention being to provide a manually operated apparatus which will accurately bend a wire, tape or other metal strip into any desired shape.

A. further object is to provide an apparatus which performs its work quickly, ac-

curately and without the employment of skilled labor.-

A further object is to provide an apparatus of this character which is capable of a wide range of modification in the shape imparted to the wire, and which can be manufactured and sold at a reasonably low price.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts, which will be more fully hereinafter described and pointed out in the claims In the accompanying drawings- Figure 1 is a plan view showing the parts in their initialposition;

Figure 2 is'a view in section on the staggered line 2--2 of Figure 1;

Figure 3 is a top plan view showing the parts carrying out a partial bending operation;

Figure 4 is a view similar to Figure 3, showing the parts in position with the bending operation completed;

Figure 5 is a sectional elevation on the line 55 of Figure 4;

Figure 6 is a fragmentary plan view illustrating a modification.

1 represents a base which may be made of relatively heavy'metal so as to be self-sus taining, or it may be secured to a support in any approved manner. The base 1 has a central circular recess 2 in which the base portion 3 of a die 4 snugly fits. This die 4 projects above the surface of the base 1 and also the die base 3 and has a central opening 5 registering with an opening 6 in base 1 for the reception of a short shaft 7, to the upper end of which a manually movable lever 8 is fixed for carrying in any approved manner, so as to provide a pivotal mounting for the lever 8 which swings in a horizontal plane above the base 1.

A second manually. operated lever 9 is pivotally connected to a post 10 on a sliding adjustable bar 11. This bar 11 is movable in a guide recess 12 in base 1 and has a longitudinal slot 13 therein receiving a threaded screw 14 screwed into the base 1 to clamp the bar 11 at any position of adjustment. a

A bracket 16 is hingedly connected to one vertical wall of the base 1, as shown at 17 and carries a spring-pressed pin 18 adapted to engage many of a series of openings 19 in a plate 20 which constitutes a portion of a shaper 22 adj ustably secured to the lever 9. I

This shaper 22 is in the form of a sharppointed block located under the lever 9 and having a threaded stud 23 projecting through a slot 24 in the lever 9 and secured in place by a nut 25 to allow the shaper 22 to be adjusted lengthwise of the lever 9.

The spring-pressed pin 18 above referred to is movable in an external screw-threaded sleeve 26 screwed into the bracket 16 and clampediat any desired position of adjustment by a nut 27. A head 28 is provided on the outer end of the sleeve 26 to faciltate its manipulation, and the inner end of said pin 1.8, which is contracted in'diameter, is provided with a transversely extending cross pin 29 projecting through the slotted sides of the bracket 16 to allow the pin to be manually withdrawn from engagement with one of the openings 19 of plate 20.

The lever 8 above referred to is provided with an adjustable stopmember 30 which extends transversely of the lever 8 and is adapted to engage the lever 9, as shown in Figure '4, when the bending operation is completed. This stop member 30 has a slot 31 therein through. which a screw or bolt projects and is screwed into the lever 8 to hold the stop member at the desired position of adjustment.

The lever 8 also carries a shaping member 33 which has a threaded stud 34 thereon projecting through a longitudinal slot 35 in lever 8 and secured at any desired position of adjustment by a nut 36.

On the base portion '3 of die 4 a fixed shaping member 37 is located and spaced fromthe side of the die 4 a distance substantially equal to the thickness of the wire 38 to bebent. On the upper face of the base 1 and on the upper face of the base 3 of die 4 a linear scale 39 is provided, the zero end of said scale registering with the corner or edge of the fixed shaping member 37. A set screw 40 is adjustably mounted in the base 1 and bears against the base 3 of die 4: so as to clamp the latter against movement but allow the same to be removed and replaced by other shapes of die members, one of which is illustrated in the m0dification shown in Figure 6.

The shape of this modified form of die member 41 is less than a circle but in other respects its structure is the same as that above described. It is of course to be understood that the shape of the die members and shaping members can be varied in accordance with the shape to be imparted to the wire.

The operation of the construction above described is as follows:

The wire 38 is placed in the position shown in Figure 1 with the levers 8 and 9 out of the path of the wire. The wire 38 is moved along the scale 39 so as to project the end thereof the desired distance from the shaper 37. The lever 8 is then swung to the position shown in Figure 3, its shaper 33 engaging the wire 38 and bending it against the face of shaper 37. The lever 9 is then swung on its pivot 10 to the position shown in Figure 3, the shaper 22 of said lever 9 forcing the wire 38 around the outer face of die 4 and hold ing the same in this position. lVhile the lever 9 is thus held the hinged bracket 16 is swung over the upper face of base 1 and its spring-pressed pin 18 engages in one of the openings 19 of plate 20 carried by the lever 9, the enlarged end 28 of sleeve 26 acting as a stop or abutment to prevent retrograde movement of the lever 9. The lever 8 is-then swung toward the lever 9 until the shaper 33 engages the wire 38 and bends the same against the shaper 22 of lever 9, completing the bending operation, as shown in Figure 4c. The parts may then be turned to initial position and the bending operation repeated, or another die, such as indicated in Figure 6, may replace the die 4 and the wire given an opposite bend or curvature, and, in fact, any shape may be imparted to the wire in accordance with the shape of the dies and the bending members by the simple manipulation of the wire and the levers, as above explained.

Various slight changes and alteration might be made in the general form of the parts described without departing from my invention, and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims,

I claim: I

1. A wire shaping apparatus, including a base having a recess in its upper face, a removable die having a base portion secured in said recess, a fixed shaping member on the base portion of the die, said base and base portion of the die having a registering linear scale extending from the fixed shaping member, a lever pivotally mounted centrally of the die, a second lever pivotally mounted on the base, wire engaging shaping members on said levers, an adjustable stop member on one lever adapted to engage the other and limit the movement of one lever toward the other, and means for holding one of said levers against retrograde movement.

2. A wire shaping apparatus, including a base having a recess in its upper face, a.

removable die having a base portion secured in said recess, a fixed shaping member on the base portion of the die, said base and base portion of the die having a registering linear scale extending from the fixed shaping member, a lever pivotally mounted centrally of the die, a second lever pivotally mounted on the base, wire engaging shaping members on said levers, a bracket hingedly connected to the base, a spring-pressed pin in said bracket, a shaping member adjustably secured to the last mentioned lever, a plate on said shaping member having openings therein to receive the pin whereby said lever is held against retrograde movement, and a shaping member on said first-mentioned lever adapted to press the wire first against the fixed shaping member and then against the shaping member of the second-mentioned lever.

3. A wire-shaping apparatus, including a base having a recess in its upper face, a removable die having a base portion secured in said recess, a fixedshaping member on the base portion of the die, said base and base portion of the die having a registering linear scale extending from the fixed shaping member, a lever pivotally mounted centrally of the die, a second lever pivotally mounted on the base, wire engaging shaping members on said levers, a bracket hingedly connected to the base, a spring-pressed pin in said bracket, a shaping member adjustably secured to the last-mentioned lever, a plate on said shaping member having openings therein to receive the pin whereby said lever is held against retrograde movement, a shaping member on said firstmentioned lever adapted to press the wire first against the fixed shaping member and then against the shaping member of the second-mentioned lever, and an adjustable bar secured to the base and providing pivptal mounting for the second-mentioned ever.

VALENTINE J. WATRAL-

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