US2951249A

US2951249A - Drapery pin hook package and holder

Info

Publication number: US2951249A
Application number: US694326A
Authority: US
Inventors: Morris A Saltz
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-11-04
Filing date: 1957-11-04
Publication date: 1960-09-06
Anticipated expiration: 1977-09-06

Description

Sept. 6, 1960 M. A. SALTZ 2,951,249

DRAPERY PIN HOOK PACKAGE AND HOLDER Filed Nov. 4, 1957 2 Sheets-Sheet 1 INVENTOR.

Maze/5 19- 591. '72

. 14 7" ENE)- Sept. 6, 1960 M. A. SALTZ 2,951,249 DRAPERY PIN uoox PACKAGE AND HOLDER Filed Nov. 4. 1957 2 Sheets-Sheet 2 INVENTOR.

Maze/5 H, 504 rz,

DRAPERY PIN HOOK PACKAGE AND HOLDER Morris A. Saltz,'1083 S. Ogden Drive, Los Angeles, Calif.

Filed Nov. 4, 1957, Ser. No. 694,326

6 Claims. c1. 1--56) The present invention relates to drapery hook holders for use in apparatus for inserting hooks in drapes, curtains, or similar flexible articles, that are to be hung by the hooks from suitable supports.

This application is for an improvement in the staple package shown in my copending application Serial No. 548,502, filed November 22, 1955, entitled Drapery Hook Dispensing and Inserting Apparatus, now Patent No. 2,821,713.

A general object of the present invention is to provide improved means adapted to supply drapery hooks to apparatus for inserting them into drapes, and like articles.

An object of the invention is to provide means for holding and storing drapery hooks to form a suitable supply, for use in apparatus adapted to automatically insert such hooks in drapes at any desired location and in a proper manner.

Another object of the invention is to provide a package embodying a holder that properly relates drapery hooks in stacked relationship, whereby they are adapted to be individually acted upon by a dispensing apparatus and advanced into the drapery material, to insure secure attachment of the hook to the drape.

A further object of the invention is to provide a receiver that accommodates a holder supplied with drapery hooks whereby the hooks are individually acted upon and are inserted into the material of the drape.

Still a further object of the invention is to provide a holder for supplying hooks to apparatus used for in serting said hooks into drapes and the like, and embodying means normally retaining a stack of hooks in the holder and releasable to insure their automatic sequential feeding into the apparatus for insertion into the drape.

Another object of the invention is to provide a holder and receiver of the character above referred to that is simple and inexpensive to manufacture, which is effective in operation, and wherein the holder is expendable after it has been used in supplying hooks to the apparatus.

This invention possesses many other advantages, and has other objects which may be made more clearly apparent from a consideration of a form in which it may be embodied. This form is shown in the drawings accompanying and forming part of the present specification. It will now be described in detail, for the purpose of illustrating the general principles of the invention; but it is to be understood that such detailed description is not to be taken in a limiting sense, since the scope of the invention is best defined by the appended claims.

Referring to the drawings:

Figure 1 is a front elevational view of a drapery hook 2,951,249 Patented Sept. 6, 1960 fire dispensing apparatus employing the holder and receiver therefor of the present invention;

Fig. 2 is an enlarged plan view of a portion of the structure shown in Fig. 1, being a view taken along line 2-2 on Fig. 1, and showing the parts of the apparatus in the process of advancing a drapery hook from the holder;

Fig. 3 is an enlarged elevational view of a package of hooks of the present invention showing it removed from the receiver and the apparatus for driving the hooks, and showing the means normally retaining the hooks in stacked relationship in the holder prior to accommodation in the receiver;

Fig. 4 is a view similar to Fig. 3 but showing the parts of the apparatus as they would appear with the top plate thereof removed;

Fig. 5 is a detailed view illustrating parts of the drive mechanism;

Fig. 6 is an enlarged view of a portion of the apparatus and showing the receiver that is provided, the holder and hooks being removed;

Fig. '7 is an enlarged sectional View through the package, taken along line 7-7 on Fig. 3;

Fig. 8 is an enlarged sectional view through the package, taken along line 8-8 on Fig. 3;

Fig. 9 is an enlarged elevation sectional view taken along line 9-9 on Fig. 4.

The holder X and receiver Y disclosed in the drawings are designed to handle a supply of drapery hooks 10,.

to position them in stacked relationship to be acted upon.

by apparatus and inserted into the fabric of a drape, or the like.

hooks in stacked relationship and is accommodated in: the receiver to sequentially feed said hooks to the apparatus to be dispensed thereby.

As specifically shown, each drapery hook that is: to be handled by the holder X and receiver Y, and to be dispensed by the machine and inserted in the drape, includes the pin portion 11 terminating in a forward point 12, the other end of the pin portion 11 merging into a curved web 13 which, in turn, merges into an inner arm 14 extending generally parallel to the pin portion 11. The outer portion lS of the inner arm is bent outwardly at an angle, being inclined in a forward direction away from the pin portion. This bent arm portion 15, in turn, merges into a rearwardly and outwardly bent portion 16 of an outer arm 17, the rearwardly projecting portion of which is generally parallel to the inner arm 14 of the hook itself. In el'fect, the two inclined inner and

outer arm portions

15, 16 form a general V shape, in order that the drapery hook may be suspended from and carried by a suitable hanger (not shown), in a known manner.

The drapery hook 10 is adapted to be received within a slotted and recessed portion of a drive plate 18, which is slidably mounted upon an upper supporting plate 19 of the frame of the apparatus, this upper supporting plate being suitably secured to the vertical walls 20 of the housing frame, which encloses the drive mechanism. A top plate 21 is carried by the upper supporting plate 19 of the frame in spaced relation thereto, the distance between the two

plates

19 and 21 being slightly greater than the thickness of the hook drive plate 18, so they will appropriately guide and confine the latter during its With the holder and receiver hereinafter described, the holder is employed to store the drapery sliding movement therebetween. The appropriate spacing between the top plate 21 and the supporting plate 19 is provided by spacer rings 22 disposed therebetween, the two plates being secured together by means of screws 23 extending through the top plate 21 and threaded within suitable holes in the supporting plate 19.

The drive plate 18 is adapted to be shifted to a rearward position in alignment with a supply of hooks 10, which are carried above the top plate 21 by the holder X. The hooks are appropriately arranged by the holder X in the manner described specifically hereinbelow, being adapted to move singly from the lower end thereof, through an opening 25 in the top plate, into the slotted recess portion at the forward corner portion of the drive plate 18, which is designed to snugly accommodate a hook. Thus, the plate has a recess 26 in its front margin to receive the pin and

inner arm portions

11, 14 of the hook, the recess being enlarged in an inward direction to accommodate the curved web portion 13 of the hook. The plate is further out out to provide an inclined edge 27 conforming to the inclined portion of the inner arm, this edge 27 terminating at an inclined slot 23 which conforms generally to the inclination of the inclined portion 16 of the outer arm 17 of the hook, this inclined slot merging into an inner slot portion 29 that is generally parallel to the front edge 30 of the plate, and which is designed to accommodate the straight portion of the outer arm 17. In effect, the recess and

slot portions

26, 23, 29 define a driving dog or lug 31 of the plate having forward tapered

sides

27, 32 adapted to engage the

inclined portions

15, 16 of the hook, to effect a coupling of the hook it to the plate 18, whereby the hook can be driven in a forward direction by the plate.

The driving plate 18 is disposed at the front portion of the top plate 21, and is guided along a predetermined path by a cam slot device 33 formed in the supporting plate 19 of the frame. The plate 18 has a pair of spaced

pins

34, 35 depending therefrom and adapted to be received in the cam slot 33. The pins have a diameter substantially equal to the width of the slot, so that the shape of the slot 33 produces a corresponding movement of the drive plate 18 and of the hook 110 coupled thereto. The cam slot has a rearward portion 36 inclined in a rearward direction away from the front of the machine. When the plate is shifted in arearward direction, the

pins

34, 35 will ride rearwardly in the slot and when the rear pin 34 engages the rear slot portion 36, it will angle the plate 18 to the hook receiving position disclosed in Figs. 4 and 5, wherein the

pin receiving portion

26, 28 of the plate is disposed under the opening 25 and the supply of pins 10. Some part of the plate 18 at all times lies under the opening 25 in the top plate 21 to support the stack of hooks 10, and it is only when the slot and

recess portion

26, 28 of the plate is disposed under the opening that a hook 10 can drop thereinto from the vertical stack or supply of hooks arranged by the holder X. The drive plate 18 is substantially the same thickness as a hook 10, in order that the hook can slide along and between the top plate 21 and the supporting plate 19 of the machine.

The rearwardly curved cam slot portion 36 merges into a substantially straight slot portion 37 that is generally parallel to the front edge 21a of the top plate. As the pin drive plate 18 is moved in a forward direction from the position shown in Fig. 4, it will carry the pin 11 in a forward direction, the point 112 of the pin being disposed at a substantial angle to the front edge 21a of the machine and ready for insertion in any drape or other material disposed in the plane of the pin (see plate 18 as positioned in Fig. 2). As the plate 18 continues to move in a forward direction (not shown), it will advance the point 12 of the pin through the fabric, whereupon the forward pin or. follower 35 will ride along the relatively straight slotportion' 37, the rear pin'or follower 34 moving from the rear curved slot portion.36 toward and into the straight slot portion, to dispose the pin 11 substantially parallel to the fabric or the material. When in this latter position, the pin 11 has completed its forward motion, and the hook 10 is disposed in alignment with an opening 39 in the top plate 21 of the apparatus, which will enable the hook to be lifted upwardly by the operator out of the drive plate 18 and the apparatus.

A clamp plate 70 is provided to move ahead of the drive plate 18 and to hold or retain the hook 10 properly engaged with the plate 18 and to release the hook after it is fully inserted into the drapery material. In practice, the drive plate 18 has a back edge 71 parallel with the front edge 30 thereof and there is a drive slot 72 entering the plate at the back edge 71. The drive slot 72 is preferably located near the pin 34 and a finger or lug 73 projects from the plate 70 to enter into the slot 72. The clamp plate '70 is carried on a pivot 74 on an axis spaced laterally of the back edge 71 of the drive plate, said lug 73 and slot 72 being shaped to allow for the abovementioned movement of the plate 18 and to provide driving connection between the drive plate 18 and the clamp plate 70.

An arm 75 extends from the clamp plate 70 to overlie the front edge 76 of the plate 18, and is provided to oppose the tapered

sides

27, 32 of the recess in the plate 18. As clearly shown in Fig. 2 of the drawings, the end portion of the arm 75 engages the hook 10 carried in the recess to clamp or hold the hook therein in engagement with the

sides

27, 32. As hereinahove described, the hook 10 has

outer arm portions

15, 16 forming a V shape, and said portions are joined by a rounded or curved portion. This latter round or curved portion is engaged by a concaved indentation 77 in the outer end portion of the arm 75 to hold the hooks. As shown, the parts of the structure are so related that the clamp plate 70 engages the hook 10 when the pin 11 is carried to the position where it is disposed to project somewhat from the front edge 21a of the machine (Fig. 2). However, when the slot and

recess portions

26, 28 of the plate 18 is disposed under the opening 25 in the top plate 21 (Fig. 4) and also when the plate has completed its forward motion, the clamp plate 70 is released. Thus, the hook 10 is allowed to drop freely into the

recess portions

26, 28 when the parts are positioned as shown in Fig. 4, and the hook 10 is clamped or held and retained in the

recess portions

26, 28 when the parts are positioned as shown in Fig. 2.

In the apparatus specifically disclosed, the drive plate 18 is moved by a power device. Thus, an electric motor and a gear reducer unit 40 is carried within the frame of the apparatus and suspended from the top supporting plate 19 of the frame. The vertical drive shaft 44 of the drive unit has a crank 45 aflixed thereto to which a crankpin 46 is secured. This crankpin has one end of a connecting rod or link 47 pivotally secured thereto, the other end of the connecting rod being pivotally mounted on one of the pins, such as the forward pin or follower 35 attached to the drive plate 18. As the drive shaft 44 is rotated by the drive unit 40, it will cause a reciprocation of the drive plate 18 through the agency of the crank 45, connecting rod 47, and the forward follower pin 35, the throw of the crank 45 being such as to move the plate between its full forward position and its full rearward position disclosed in Fig. 4, where it is adapted to receive hooks through the opening 25.

The portion of the drape into which a hook is to be initially inserted is placed upon a platform or vertically movable supporting plate 54 disposed adjacent the front end of the apparatus, and below the plane of its top plate 21. This supporting plate 54 has a pair of generally vertical guide rods 55 secured thereto and depending therefrom, these guide rods being slidable through the spaced upper and

lower flanges

56, 57 of a bracket 58 suitably secured to the front wall of the frame and housing20. The supporting plate 54 is urged toward its upperthe supporting plate to its uppermost position.

The apparatus has a guide or indicator 66 (Figs. 1 and 2) to determine how far the operator must depress the supporting plate 54 to insure the insertion of a hook at and through a drapery seam. This guide or indicator is offset from the plane of movement of the drive plate 18 and is readily visible to the operator, who will place a portion of a drape on the supporting plate 54, and then exert a downward force on the drape until the supporting plate depresses to the point at which the seam of the drape, at which the hook is to be inserted, is in alignment with the indicator 66 and the hook point 12. The operator then knows that during operation of the machine the hook will be inserted in the drape at the proper location.

. As stated above, a stack S of hooks is supported vertically in the holder X, which serves as a means for storing a desired number of hooks 10 in proper stacked relation. and for sequentially feeding such hooks into the' recessed and slotted

portions

26, 28, 29 of the drive plate as they are needed. As best illustrated in Figs. 3, 7 and 8 of the drawings, the holder X handles a stack S of hooks .10of the particular character herein above described. In accordance with the invention, the holder is adapted to handle. the hooks 18 for the purpose of storing and handling them prior to relating them to the apparatus, to

be dispensed thereby. The holder is particularly adapted to be related to the apparatus hereinabove referred to, tothe end that the hooks 18 are sequentially fed, one at a time, to be driven and inserted into drapery material and the like. The holder X, as shown, involves, generally, an elongate body 86 shaped to engage with and guide the hooks in stacked formation, one adjacent another. The body 80 is preferably of lightweight construction and of inexpensive material so that it is expendable after once used, and in practice it is made of a suitable sheet material, for example, sheet metal, paper, or a plastic. Depending upon the material employed, appropriate methods of forming the body 80 may be employed as circumstances require.

The body 80, forming the folder X, is shaped in a manner to have spaced guide rails 8-1 and 82 that have guiding engagement with the point 12 and Web 13 of the hook 10, respectively. The

rails

81 and 82 are such as to confine the hooks 19 to the body 80 of the holder X and allow for free movement of the hooks 10 longitudinally of the body 80. The body 80* has a flat platelike portion 83 that extends between and spaces the

rails

81 and 82, and the rails are formed to have confining parts that overlie the engaged portions of the hooks 10.

The rail 81 involves a portion of the body 80 that is turned back along the edge of the portion 83 to overlie the marginal edge portion of the body and is parallel therewith. In this way, a longitudinal guideway 84 is formed to receive the points 12 of the hooks 10 with suitable clearance, as shown in Fig. 7. The rail 82 involves a portion of the body 80 that is turned back along the edge of theportion 83, opposite the side having the rail 81, to overlie the marginal edge portion of the body. The rail 82 is formed to engage with the extreme end of the hook 10 at the web 13 and has, therefore, a flange 85 preferably disposed at a right angle to the plane of the body portion 83, the back of the web 13 of each hook having point contact with the flange 85. Further, rail 82 is formed to closely overlie the exterior of the web 13, which is a looped section of Wire, and has, therefore, a lip or flange 86 that projects inwardly from the edge of 'the flange 85 to overlie the marginal edge portion of the body. The lip 86 is a straight part extending along the body portion 83 but inclined thereto in transverse crosssection, whereby the loop-shaped web 13 of each hook is held within the guideway 87 for the webs 13 defined between the lip or flange 86and the body portion 83. The lip engages the inclined side of the web 13 facing in a direction toward the point 12 of the hook 10', to the end that the point 12 of the hook will not touch the bottom of the guideway 84. In the preferred form of the invention, the lip 86 is provided with a longitudinally disposed bead 88 that acts to stiffen the lip and which also provides for point contact with the webs 13, as shown.

The holder X, as above described, may be of any suitable length and has opposite ends 89 that are normal to the

longitudinal rails

81 and 82 that extends parallel with each other. The hooks 10 are entered into the holder X in stacked relation and facing in a common direction. That is, the points 12 of the hooks are entered into the guideway 84 while the webs thereof are entered into the guideway 87. The pin 11 of the hook lies adjacent the portion 83 of the holder X while the remaining portions of the hook 10 are not engaged by the holder and are unsupported.

In order to retain the stack S of hooks 10 in the holder X, there is provided a retainer 99 engaged with the holder X and with the stack S of hooks 10 handled thereby. The retainer 90 may vary in form and acts to prevent displacement of the hooks 1! from the ends of the body 80. The retainer 90 is shown in the form of a band wrapped over the holder X and stack S of hooks 10, and it is preferably a band of material that can be easily torn away and removed from the holder. For example, the retainer band is madeof paper, the end portions thereof being secured together, as by a suitable adhesive at 91, and with a free end 92 adapted to be manipulated to be torn whereby the band can be pulled from the holder, freeing the hooks 18 for downward feeding from the holder.

The holder X, with the stack S of books 10 arranged therein, is suitably supported in vertical position on the a paratus within a receiver Y attached to the top plate 21. The receiver Y has a base portion 93 attached to the top plate 21 in any suitable manner, as by means of welding, for example, spot-welding, and from which suitable guide walls project. The receiver Y for the holder X includes a vertical guide wall 94 corresponding to the body portion 83 of the holder to engage and retain said portion. A guide channel 95 is provided at the rail 81 of the holder, and a guide channel 96 is provided at the rail 82 of the holder. As best illustrated in Fig. 6 of the drawings, the guide channel 95 is formed'of walls 97 and 98, the wall 97 being disposed in spaced parallel relationship with the wall 94. The wall 98 is disposed between the walls 94 and 97 and is preferably a curved wall formed integrally with and joining the walls 94 and 97. The guide channel 96 is formed of

walls

99 and 100, the wall 99 being at the rear portion of the wall 94, and disposed in spaced parallel relationship thereto. The wall 100 is disposed at right angles to the

walls

94 and 99 and is preferably integral with and joins the

walls

94 and 99. The holder X is slidably engaged in the receiver Y with the

rails

81 and 82 thereof received in the

guide channels

95 and 96, whereby the hooks 10 that are arranged in stacked formation by the holder X are allowed to feed downwardly in succession, when the retainer 90 is removed, and into the drive plate slot and

recess portions

26, 28 of the drive plate 18. As clearly shown in Fig. 6 of the drawings, the opening 25 in the top plate 21 is of the same general configuration as each hook 10, such that a portion of the top plate 21 underlies the holder X by engaging the lower end 89 thereof, to position the holder X in the receiver Y and to prevent it from dropping into the opening 25.

It Will be apparent from the foregoing that a very simple and inexpensive means is provided to store and supply drapery hooks into apparatus adapted to drive said hooks into drapery material. Hooks of the character described are obviously diflicult to handle by individual manipulation, and with the holder X that I provide, a stack S of hooks 10 is conveniently stored and handled whereby a'substantial number of hooks are applied at one time to the apparatus for driving them. Further, the apparatus involves a simple and effective receiver Y that accommodates the holder X and hooks 1t handled thereby to the end that the hooks are sequentially fed one at a time when the retainer 90 is removed from the holder in the manner above described.

I claim:

1. A package adapted to receive a stack of abutting drapery pin hooks, each hook having a pin portion terminating in a forward point at one end and merging into a curved 'web at its other end, said web merging into an inner arm disposed alongside and lengthwise of said pin portion, said inner arrn merging into an outer arm spaced from and extending lengthwise of said inner arm; comprising an elongate holder including a central portion connected at one of its" sides with a first flange overlying and spaced from said' central portion to define a first elongate groove therewith, said central portion being connected at its opposite side with a'flang'e structure including a flange portion spaced from and overlying said central portion to a substantially greater extent thansaid first flange to define a second elongate groove therewith of substantially greater depth than said "first groove; said holder being adapted to receive said stack of hooks with said pin portionslying along said central portion, said forward points being confined in said first groove, and said web being confined in said second groove.

2. A package adapted to receive a stack of abutting drapery pin hooks, each hook having a pin portion terminating in a forward point atone end and merging into a curved web at its other end, said web'merging into an inner arm disposed alongside and lengthwise of said pin portion, said inner arm merging into an outer arm-spaced from and extending lengthwise of said inner arm; comprising an'elongat'e holder including 'a central portion connected at one of its sides with a first flange overlying and spaced from said central portion to define a first elongate groove therewith, said central portion being connected'at its opposite side with a flange structure including a flange portion spaced from said central'portion to a substantially greater extent than said first flange and overlying said central portion to a substantially greater extent than 'said first flange to define a'second elongate groove therewith of substantially greater depth and width than said first groove; said holder being adapted to receive said stack of hooks with'said pin portions lying along said central portion, said forward points being confined in said first groove, and said web being confined in said second groove, said outer arms being disposed outwardly of said first and second flanges.

3. A package adapted to receive a stack of abutting drapery pin hooks, each hook having a pin portion tenninating in a forward point at one end and merging into a curved web at'its other end, said web merging into an inner arm disposed alongside and lengthwise of said pin portion, said inner arm merging into an outer arm spaced from and extending lengthwise of said inner arm; comprising an elongate holder including a central portion connected at one of its sides with a first flange overlying and spaced from said central portion to define a first elongate groove therewith, said central portion being connected at its opposite side with a flange structure including a flange portion spaced from and overlying said central portion to'a substantially greater extent than said first flange to define a second elongate groove therewith of substantially greater depth'than said first groove; said holder being adapted to'receive said stack of hooks with said pin portions lying along said central portion, said forward points being confined in said first groove, and said web being confined in said second groove; said holder being openat one'of its ends to permit said hooks to be w1thd=rawnfrom said holder through such one end; and

removable means disposed across such one end to prevent movement of said hooks through said one end, said hooks being free to slide from said holder through said one end upon removal of said removable means.

4, A package adapted to receive a stack of abutting drapery pin' hooks, each hook having a pin portion terminating in -a forward point at one end and merging into a curved web at its other end, said web merging into an inner arm disposed alongside and lengthwise of said pin portion, said inner arm merging into an outer arm spaced from and extending lengthwise of said inner arm; comprising an elongate holder including a central portion connected at one of its sides with a first flange overlying and spaced from said central portion to define a first elongate groove therewith, said central portion being connected at its opposite side with a flange structure including a flange portion spaced from and overlying said central portion to a substantially greater extent than said first flange to define a second elongate groove therewith of substantially greater depth than said first groove; said holder being adapted to receive said stack of hooks with said pin portions lying along said central portion, said forward points being confined in said first groove, and said web being confined in said second groove; said holder being open at one of its ends to permit said hooks to be withdrawn from said holder through such one end; and a removable band adapted to extend lengthwise of said holder along said inner arms and across said one end to prevent movement of said hooks through said one end, said hooks being free to slide from said holder through said one end upon removal of said band.

5. A package adapted to receive a stack of abutting drapery pin hooks, each hook having a pin portion terminating in a forward point at one end and merging into a curved web at its other end, said web merging into an inner arm disposed alongside and lengthwise of said pin portion, said inner arm merging into an outer arm spaced from and extending lengthwise of said inner arm; comprising an elongate holder including a central portion connected at one of its sides with a first flange overlying and spaced from said central portion to define a first elongate groove therewith, said central portion being connected at its opposite side with a flange structure including a flange portion spaced from said central portion to a substantially greater extent than said first flange and overlying said central portion to a substantially greater extent than said first flange to define a second elongate groove therewith of substantially greater depth and width than said first groove; said holder being adapted to receive said stack of hooks with said pin portions lying along said central portion, said forward points being confined in said first groove, and said web being confined in said second groove; said holder being open at one of its ends to permit said hooks to be withdrawn from said holder through such one end; and a removable band adapted to extend lengthwise of said holder along the exterior of said central portion, across said one end, and along said inner arms to prevent movement of said hooks through said one end, said hooks being free to slide from said holder through said one end upon removal of said band.

6. A package adapted to receive a stack of abutting drapery pin hooks, each book having a pin portion terminating in a forward point at one end and merging into a curved web at its other end, said web merging into an inner arm disposed alongside and lengthwise of said pin portion, said inner arm merging into an outer arm spaced from and extending lengthwise of said inner arm; comprising an elongate holder including a central portion connected at one of its sides with a first flange overlying and spaced from said central portion to define a first elongate groove therewith, said central portion being connected at its opposite side with a flange structure including a second flange spaced from and overlying said central portion to define a second elongate groove therewith; said holder being adapted to receive said stack of hooks with said pin portions lying along said central portion, said forward points being confined in said first groove, and said web being confined in said second 5 groove; said second flange being inclined toward said central portion, whereby said second groove converges in a direction toward said first flange to retain said webs in said second groove.

References Cited in the file of this patent UNITED STATES PATENTS Brown Dec. 10, Stern July 11, Briggs May 29, Whitehead Dec. 6, Raphael Oct. 26, McGinnis June 14,