US1856843A - Safety removable fastener - Google Patents

Description

May 3, 1932. BEBEL I 1,856,843

SAFETY REMOVABLE FASTENER Filed Dec; 1 1951 INVENTIOR arrz 365E! Fat-tented May 3, 3.232

BEBEL QE NEW YORK, N. Y.

mm nnmovnn FASTENER Application filed December 1,1931. Serial No. 578,268.

This invention relates to new and useful improvements in a safety removable fastener slide.

The invention has for an object the construction of a control slide for engaging fasteners which is characterized by the pro-- vision of a post projecting from one of a pair of upper and lower spacedtrapezoidal guide plates and formed on the projecting end with a hook capable of engagement with a latch to hold the guide plates together.

Furthermore, it is particularly proposed to swivelly mount the latch element and to connect a handle thereon for the purpose of moving the slide and the simultaneous purpose of operating the latch element.

A still further object of the invention is the provision of tapered pegs projecting from the handle and engageable against one edge of one of the guide plates to hold the handle in a closed position. I

A still further object of this invention is the construction of a device of the class described which is of simple, durable construction, dependable in use and eflicient in operation, and which can be manufactured and sold at a reasonable cost.

For further comprehension of the invem tion, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and and to the appended claims in which the various novel features of the invention are more particularly set forth.

- In theaccompanying drawings forming a material part of this disclosure Fig. 1 is a bottom view of a control slide constructed according to this invention.

Fig. 2 is an edge elevational view of Fig. 1 looking in the direction of the line 22 of Fig. 1.

Fig. 3,is a plan view of the slide seen as though looking in the direction of the line 3-3 of Fig. 2.

Fig. 4 is a view similar to Fig. 1 but showing the trapezoidal guide plates pivoted away from the handle.

Fig. 5 is an'edge elevational view looking in the direction of the line 5-5 of Fig. 4.

Fig. 6 is a view similar to Fig. 4 but showing the guide plates opened.

Fig. 7 is a bottom view of Fig. 6.

Fig. 8 is a sectional view taken on the line Fig. 9 is a plan view of a control slide constructed according to a modification of the invention.

Fig. 10 is a side elevational view of Fig. 9.

Fig. 11 is a bottom view of the control slide shown in Fig. 10. v

The control slide, according to this lnvention, comprises spaced upper and lower trapezoidal guide plates 10 .andll respectively hingedly connected together at 12 which is the central portion of the-latch ends of the trapezoidal shape. post 13 projects from one of the guide plates through the other and is formed with a shoulder 14 to limit pivoting of the guide plates so that they are parallel with "each other. A latch element 15 is swively mounted upon one of the plates and is adapted to engage beneath a hook portion 16 formed upon the post 13. A handle 17 is pivotally mounted on the latch element 15.

The handle 17 is formed from a thick plate of metal having an opening 18 stamped at one end. At the other end it is formed with inward directed prongs 19 adapted to engage in an opening 20 formed in the latch element 15. The guide plates 10 and 11 have inwardly directed longtiudinal edges 21 adapted to engage upon the sides of the fastener so as to bring them into engagement with each other. The hinge 12 is formed by a pair of lugs 22 projecting from the edge of one of the plates and a straddling lug 23 projecting from the edge of the other plate. A pintle pin 24 engages through these lugs to conclude the hinge connection. The hinge connection serves to guide the latch end of the trapezoidal guide plates so as to cause the fastener to travelaround the sides thereof which are curved as shown on the drawing.

The post 13 is located immediately adjacent the hinge 12 and further serves to guide the hookless fasteners as they pass through the trapezoidalguide plates. The latch 15 is pivotally supported by a pin 25 which engages through the latch and through one of the guide plates. The latch has a reduced front edge 26 which is capable of engaging the hook 16. A pair of pegs 27 project from the handle 17 and are located to be disposed on the opposite sides of the hin e 12 and to frictionally engage against the e ge of one of the guide plates so that the handle may be snapped into a locked position. The pegs 27 are tapered as clearly shown in Fi 2 for example. This insures clamping 0 the parts together. In Fig. 4, the dot and dash lines indicate a pivoted position of the handle 17 in which position the latch 15 is correspondingly moved so that its reduced end 26 disengages from the hook 16. In Figs. 6 and 7 the guide plates have beeh shown completely open as when the central slide is removed from a line of fasteners.

Normally, in operation the control slide is in a condition as illustrated, for example, in

Fig. 1. To move the slide it is necessary that the handle 17 first be pivoted around the pegs 19 and then the trapezoidal plates may be moved back and forth to cause engagement and disengagement from the fasteners. If it becomes necessary for any reason whatsoever to remove the control slide from the fasteners, the handle 17 can be pivoted to the position indicated in Fig. 4, which causes the latch to release the hook and permits the plate sections 10 and 11 to be pivoted open and off the line of fasteners.

In Figs. 9, 10, and 11, a modification of the invention has been disclosed in which a pair of upper and lower spaced trapezoidal guide plates 30 and 31 respectively have been shown held in fixed relation by a rivet 32. Upon the top guide plate 30 a strap element 33 is secured and extends its complete length. A handle 34 is formed with prongs 35 engaging beneath the strap 33 so that the slide ma be drawn back and forth with the handle. pair of pegs 36 project from the handle 34 and are adapted to engage against one edge of the guide plate .30 to latch the handle in an inoperative position.

The dot dash lines in Fig. 10 indicate a pivoted position of the handle wherein it is free to move the ide plates back and forth. While I have s own and described the preferred embodiment of my invention, itis to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of theinvention asdefined in the appended claims.

Having thus described my invention what I claimas new, and desire to secure by United States Letters Patent is 1. A safety removable fastener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portions of the larger sides, a post projecting from one of theguide plates through the other and formed with a hook on its extended end, a latch element swivelly mountedon one of the guide plates and engageable with said hook to hold the guide plates closed, and a handle pivotally mounted 1 on said latch element.

2. A safety removable fastener slide, comprising upper and lower spaced trapezoidal 3. A safety removable fastener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portions of the larger sides, a. post projecting from one of the guide plates through the other and formed with a hook on its extended end, a latch element swivelly, I

mounted on one of the de plates and engageable with said hoo to hold the guide plates closed, and a handle pivotally mounted on saidlatch element, said hinge comprising lugs projecting from the edges of the guide plates and a pin engagi therethrough.

,4. A safety removable astener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portions of the larger sides, a post projecting from one of the guide plates through the other and formedwith a hook on its extended end, a latch element swivelly mounted on one of the guide plates and engageable with saidhook to"-holdthe--guide plates closed, and a handle pivotally mounted on said latch element, said latch element having a reduced front end capable of engaging with said hook.

5. A safety removable fastener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portlons of. the larger sides, a post projecting from one of the guide plates through the other and formed with a hook on its extended end, a latch element swivelly mounted on one of the guide plates and engageable with said hook to hold the guide plates Closed, and a handle pivotally mounted on said latch element, said handle being formed with inturned prongs engaging in an opening in the sides of said latch element.

6. A safety removable fastener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portions of the larger sides, a

post projecting from one of the. guide plates Lame-1s through the other and formed with a hook on its extended end, a latch element swivelly mounted on one of the uide plates and engageable with said hoo to hold the guide plates closed, a handle ivotally mounted on said latch element, and means for holding said handle frame against one of said plates.

8. A safety removable fastener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portions of the larger sides, a post projecting from one of the guide plates through the other and formed with a hook on its extended end, a latch element swivelly mounted on one of the uide plates and engageable with said hoo to hold the guide plates closed, and a handle pivotally mounted on said latch element, the swivelling of said latch element being accomplished by a pintle pin engaged through the latch element and the adjacent trapezoidal 'de plate.

9. 'A safety removable astener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portions of the larger sides, a post projecting from one of the guide plates through the other-and formed with a hook on its extended end, a latch element swivelly mounted on one of the 'de plates and engageable with said hoog to hold the guideplates closed, and a handle iv'otally mounted on said latch element, and latch plate being' located u n .the narrow end of said trapezoidal guide plate.

10. A safety removable fastener slide, comprising upper and lower spaced trapezoidal guide plates hingedly connected together at the central portions of the larger sides, a post projecting from one of the guide plates through the other and formed with a hook on its extended end, a latch element swivelly mounted 'on one of the guide plates and engageable with said hook to hold the guide plates closed, and a handle pivotally mounted on said latch element, saidhandle being formed with vinturned pron anopening in the sides of sai latc element, said prongs being disposed between the swivel connection of said latch element and the free end of thelatch' element. a

'11. A safety removable fastener slide, com-. prising upper and lower spaced trapezoidal e aging in 'ue plates hin dly connected together at 5i: central por dns of the larger sides, a

0st pro'ecting from one of the guide plates ihrough the other and formed with a hook on its extended end, a latch element swivelly mounted on one of the ide plates and engageable with said hoo to hold the guide plates closed, and a handle ivotal ly mounted on said latch element, said latch element swinging in a plane arallel to the planes of said trapezoidal gui e plates. y

In testimony whereof I have aflixed my signature.

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