US1882095A - Tool for fastening sash weight cords - Google Patents

Description

Oct. 11, 1932. REGG|TT$ 1,882,095

TOOL FOR FASTENING SASH WEIGHT CORDS Filed Oct. 22, 1931 Patented Oct. 11,1932

arent am n H JOHN Rneerrrs, or soon'ron, NEW JERSEY,

,Toon non FASTENING SASH WEIGHT oonns Application filed October 22, 1931. Serial No. 570,459.:

I v This invention relates to tools for securing metal to fabric material and more. particularly to "tools of the type of pliers, having for its object to provide a construction simple in parts and more eflicient in operation than those heretofore proposed.

With these and other objects in view the invention resides in the'novel'details of con struction and combinations of parts as will be disclosed more fully hereinafter and particularly pointed out in the claims. Referring to the accompanying drawing forming a part of this specification in which like parts are designated by like numerals in all the views,-

Fig. 1 is a side elevation of a pair of pliers madeinaccordance with this invention;

Fig, 2 is a side view of the same pliers the jaws ofwhich are now shown in open position about to act upon a metal clamp;

. Fig. 3 is an endgview of the jaws, in open position; v

Fig. 4 is a view similar to F ig. 1 but showing the pliers in full engagement with a metal. clamp; and

Fig.5 is a perspective view of a securing clamp which has been acted upon by the pli ers,-said clamp being illustrated as securing the endof a sash weight cord. 7

This invention contemplates a tool adapted toclose a metallic clamp upon fabric in order tohold one part of the fabric relative to another. In illustrating the invention the .tool has been shown'as constituting a pair of pliers, and the fabric is-shown as com prising. the usual woven cord used for sus-- pending the'weigh'ts of window sashes. It is to be understood, however, that other modifications of the invention may be as well covered by the principles involved in this specific plier modification, the principal feature residing in the dual function of rolling one "part of the metal clamp with respect to another part, and,after rolling action is completed, impressing portions of the metal clamp into the fabricbeing secured thereby.

In the drawing the pliers are shown as comprising two jaws 1 and 2 pivotally joined as at 3','the jaw 1 extending beyond said' pivot into a handle portion 4 the extreme end of -portion 6 the extreme end of which carries side extremity of the j aw.

provided with a single sharpened prong 15 at its mid-point, and thus is in staggered rewhich is bevelled more or less sharpened to provide a screw-driver edge 5. The other jaw 2 is likewise extended to formthe handle a link '7 adapted, when the pliers are closed, to pass over the screw-driver end of the other handle andengage a notch 8 in the handle 4. for locking the pliers in closed position. A spring 9 is interposed between the handle portions. f so a The jaw 2 is broadened as clearly indicated in Fig. 3 and terminates in' a roundedend 10 of a radius equal substantially to the thick ness of the jaw. The inner face of the jaw is concavely formed to provide agroove'as indicated at 11 and extending from this concave face in a direction towardthe other, jaw is a pair of sharpened prongs indicated at 12, said pair being spaced one near each 7h The other jaw I is somewhat similarly formed, inthat it has a rounded end 13 and i a concave inner jaw surface providing'the groove 14 the inner edges of both grooves being disposed equalndistances from the'pivot 3... However, the radius of curvature of the rounded end 13 is much less than the radius of curvature of the end 10 of the other aw, and the jaw l is longer than the jaw 2. Also the radius of curvature of the groove 141's greater than the radiusof curvature ofthe groove '11, each groove extending to theextreme end of its jaw providing "thereby a work manipulating edge, whereby, as will be readily seen from-Fig. 1, the extremity of the jaw 1 overlies the extremity of the jaw '2; in other words, the two jaw extremities overlap.

The inner concave surface 1 1 of jaw 1 is lation tothe prongs 12 of the other jaw. It is also to be observed that the prongs l2 and 15 are sodisposed in their respective jaws that, when said jaws are closed, all prongs 9 will be in a common plane, and the inclination of this common plane is substantially 45 to a plane passing'longitudinally through the center of-the. pliers and including the axis of the pivot 3. Each jaw is provided 100 with similar concave surfaces or grooves 16 and 17 disposed between the pivot 3 and the aforementioned concave surfaces ll and 14,, both of the concave surfaces 16 and 17 being of the same radius. Thus, there is established between the pair of concave surfaces of each jaw. face an abutment (indicated in Fig.

2 at 18) contacting the similar abutment of the other jaw to limit the closing ability of the jaws, and thereby causing the grooves 16 a and 17 to establish 'afclo sed passage '19 when the jaws are closed. Lastly, all: of the con: cave surfaces 11, 14, 16 and 17 are cylindri cally formed, the axis of'curvatui'e being p'arallel to the axis of the pivt3, and therefore at right anglestoftheplane of the pliers as 'awh0le., V I r I V V I In operationthe pliers are used with a cord-clamping member generally indicated in Fig. by the numeral 20' and'which is adapted to secure firmly the end 21 of a sash weight cord to the main body portion 22 thereof after 1 the latter has) been passed through the eye 23 of a weight'24, thus obviating the necescity of tying plural knots in the cord and leaving a cord-end protruding frointhe last knot, which end is very: apt to cause displace ment of the'sash weight in the window frame,

. resulting in banging of the weight as it trundlesup anddown. The use of this clamp further obviates the catching of the enlarged knot heretofore employed, by furnishing a secure fastening of small dimension and havmg no extending obstructions toenga'ge with nails etc. .in its travel up and down the 1 sash weight.

T The clamp 20 is madejof tinor other thin pliable metal and is generally'triangula'r in shape, or rather it, has amain flat body portion 25 (seerFvig.2) which is. triangular, and

7 along each longitudinal edge ofthis body portion there is formed a channel of circular cross section as clearly indicated at 26,'the clamp as furnished having a relatively wide openingindicated at 27 acrossthe m'outhof the channel and of a dimensionto readily receive therethrough the round sash weight cord;

After the cord has been looped through the eye of the sash weight,'the free end of the'c'ord is laid in one of the open channels,

and then this channel is inserted between the jaws of the'pliers,.-:the longer or overlapping jaw being placed against the main body portion 25 of the clamp between-the two channels. As thejawsare brought together,the

relatively sharp-edge 28 ofthe longerjaw :will engage the angle between the main body portion and thecord filled cliannel,'and then the other jaw will advance against the free edge portion29 of said channel Further pressure through the jaws of 'the pliers will then cause the edge 30 of the underlying jaw to roll the freeedge'side of the channel over the sash weightcord and ultimately body portion 25, with the cord more or less tightly encompassed by the wall of the channel. 1 g r V Duringthis rolling action the channel will have occupied a position betweenthe prongs 12, 15 and the extreme ends of the plier jaws but, after the channel edge has been sufiicient-o lyvrolled the pliers, are shifted slightly to bring the rolledbver portion ofthe clamp further nt the Then t P r are squeezed tightly.- as a result of which the said edge of the channel against the main prongs12- HIldI15-; Will penetrate the thin metal of the rolled over channel and form inwardly extending fburs positively engaging the fabric ofthe cord to prevent longitudinal movement thereof in the closed channel. The

main body portion 22 of the cord-is then 'inserted in the other open channel of the clamp and the pliers used in a similar mannertofirst roll the channel "into closediposition' "about hole 19 -formed by the concavesurfaces 16 anal-7 willbe found useful for confining any portion of the sash weight cord, especially when the handleportions of the pliers'f are locked bythe linkv7. For-example when applying new cords, and after cord and weight have been secured together, it is quite neces sary thatthe freeend'of'the cord be kept from passing over the pulley and dropping down interiorly of the window frame. 7 .This may be readily'cpreventedby inserting a bight of the-cord in one of thjegrooves such as16,

then bringingthe free end of the cord between the prongs 12, '15, "and thenpressing the pliers firmly together and latching them with the link 7 as a-resu'lt of'which the end of thefcord will be secured by the penetrating prongs and the main'body portion of the cord :will liein the'opening 19., In this arrangement the pliers will-assume a position across theperiphery of the sash cord pulley and prevent the'loss of theendof the cord by being yanked into the window frame bythe weight. V I j r Itis obvious that those skilled in the -art may vary the details of-construction as well foregoing except asmay berequired by the claims.

'What is claimedis:"

1-.- In a tool of the character describedthe combinationof work receiving-jaws having as arrangements of parts without departing from the spirit'of'the invention, auditis therefore not desired to be limited'to the overlapping ends the end of each jaw tapered to provide a sharp work engaging edge; a V

groove in the working face of each jaw meeting a work manipulating edge; and work penetrating members within said jaws.

2. In a tool of the character described the combination of work receiving jaws having overlapping ends the end of each jaw tapered to provide a sharp work engaging edge; a groove in the working face of each jaw meeting a work manipulating edge; and work penetrating members within the grooves of said jaws.

3. In a tool of the character described the I combination of work receiving jaws, the face of each jaw provided with a cylindrically formed groove, the groove of one jaw formed by a radius greater than the radius of the groove of the other jaw, eachvgroove formed at the extreme end of its jaw providing work manipulating edges, said edges overlapping; and work penetrating members within said grooves.

4. In a tool of the character described the combination of work receiving jaws, the end of eachjaw tapered to provide a sharpwork manipulating edge, the ends adjacent said edges adapted to overlap when the jaws are closed; and work penetrating members within said jaws.

5. In a tool of the character described the combination of work receiving jaws having overlapping ends formed by intersecting arcuately formed surfaces, and work penetrating members disposed within said jaws to lie in a common plane substantialy-parallel to the plane of the overlapping surfaces of said aws.

In testimony whereof I aflix my signature. 7 JOHN REGGITTS.

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