US1284455A - Snap-coupling. - Google Patents

Description

c. Ejw. REINSUORF.

SNAP cuPLmG.l APPLICATION FILED JUNE Z4. IQIB.

Patented Nov. I918.

TED srA'rEsPA oFFIeE.

CARL EDWARD-WILLIAM REINsDoRF, 0F HUMBQLDT, SASKATCHEWAN, CANADA.,-

SN {kP-COUPLIN G.

Speeicaton of Letters Patent.

Patented Nov. 12, 1918-.

Application tiled I une 24, 1918. Serial No. 241,584.

invented certain new and useful Improvements in SnapCouplings, off which the following is a specification.

This invention relates to improvements in snap couplings and its prime object is to provide a coupling in which the separable parts may be snapped into operative engagement, and disconnected by a Sudden jerk of one of the parts` A. further object is to provide a device of this type that is Vsimple in ,const-ru@ tion and efficient in operation. With .the foregoing and other objects in view the invention consists in the combination and arrangement of parts to be hereinafter fully described, pointed out in the appended claims and illustrated in the accompanying drawing which forms a part of this specification and in which- Figure 1 is a view of my improved coupling in elevation.

Fig. 2 is a longitudinal sectional view through Fig. 1, uncopled.

Fig. 3 is a top plan'view of the device with the pull cord omitted.

Fig. 4 is a fragmentary view of one of the separable parts of the device.

Like reference characters denote corresponding parts throughout the several views.

The reference numeral 1 denotes an open ended cylindrical shell formed with the spaced perfor-ations 2, 3, the pcrforations 2 receiving the transversely disposed contractile spring 4 which extends through and beyond the shell 1, the ends of said spring being secured to the angular' jaws 5, 5 having bearing shoulders 5a for engagementwith the shell and which jaws each have one end secured by rivets 6 to the shell 1, the jaw Shanks 7 being spaced away from the shell and the teetlf 8 of said jaws being adapted for insertion into the shell perforatiops 3. The purpose of the spring 4 is to yieldingly draw the jaws toward each other and a tie bolt. 9 extending transversely through the shell and engaging both jaws limits, in a positive manner, the relative movement of said jawsaway from each other. Each jaw is formed with a handle or extension 10 in a suitable perforation in which one end of a `cord `11 is'- secured, said cords 11 being branches of a pull cord 12 by means of which relative movement of the jaws 5, 5 is effected. l A second open ended cylindrical shell 13 is formed with one reduced termination 1-l.

wherein the alined perforations 15 are forined, the shell end 14 heilig adapt-ed for insertion in one end of the shell 1 and the perfo? rations 15 being adapted to receive the teeth S of the jaws 'rwhereby the shells 1, 13 are secured together. One end of the shell 13 may be. threaded for engagement with a pipe or the said shell 13 may be otherwise secured to an object and the cord 12 suitably secured to anotherpbject when it is desired to couple or secure the two objects together. The device may be used for a variety of purposes such `as a support for hanging lamps or for lightweight objects generally.- The coupling is instantly assembled by simply inserting the end 14 of shell 13 into shell 1 until the jaws 5 engage with the shell end perforations 15. To disengage the shells the operator may hold the shell 13 and give a sharp jerk upon the cord 12 when the teeth otl the jaws will be snapped out of engagement with the shell 13 thus freeing the saine.

IV hat is claimed is 1. In a snap coupling, a shellv formed with perforations, a pair of jaws secured to saidv shell and formed with teeth adapted for insertion in the perforated portions of said shell, means for yieldingly drawing said j aws toward said shell, a iexiblc element connected to said jaws whereby their toothed ends may be drawn outwardly from said shell, anda second shell adapted for telescopic engagement with the tirst named shell, said second shell being perforated to receive the teeth of said jaws.

2. In a snap coupling, a shell formed with perforations, a. pair of jaws secured to said shell and formed with teeth adapted for insertion in the perforated portions of said shell, means for yieldiugly dra wing said jaws toward said shell, means for positively limit- Iing the outward movement of said jaws with 'relation to said shell, a flexible element on.

nected to said jaws whereby their toothed ends may be drawn outwardly from said shell, and a second shell adapted for telescopic engagement with the first named shell. said second shell being perforated to receive the teeth Vof said jaws.

3. In a snap coupling, a. shell formed with 1 two pair of spaced perforations, the members of each pair of perforations being alind with each other, a pair of jaws secured to said shell and formed with teeth adapted for insertion in one pair of shell perforations, a spring extending through the other pair of perforations and having its ends engaging said jaws to yieldingly draw them together, means for positively limiting the outwardmovement of said jaws with relation to 'said shell, a flexible element connected to said jaws whereby their toothed erds may be drawn outwardly from said shell, 'and a sec- 0nd shell adapted for telescopic`engageme'nt with the first named shell1 said second shell being formed with alined perfor-ations to re-.\ ceive the teeth of said jaws.

4. In a snap coupling, a shell formed with two pair of spaced perforations, the members of each pair of perforations being alned with each other, a pair ot' jaws secured to said shell and formed with teeth adapted for insertion in one pair-of shell penfrations, a spring extending through the other pair of perforations and havingits ends engaging said jaws to -yieldingly draw them tofether, 3`-

atie rod extending through said shel and connected to said jaws, a flexible element connected to said jaws whereby their toothed A ends may be drawn outwardly from said shell, and a second shell adapted for tele- :e

In testimony-that I claimthe foregoing as my own I have heretoA affixed my signaturen the presence of two subscribing witnesses.:

CARL EDWARD WILLIAM REINSDORF.

lVitnessesi A Rev. L. F. Bonnema, F. H. BENCE.

Images