US93639A - Improved elastic trace-connection - Google Patents

Description

- HJ Quinn. y Elastic Tace Connection. y Y

No' 93639' l Patint-edfAug. 10,l 1869.

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Letters Patent No. 93,639, dated Aagust 10, 1869.'

IMPROVED ELAS'IC `TRACE-GONNECTION.

The Schedule referred to in these Letters Patent and making part of the same. m

To all persons to whom these presents may come:

Be it known that I, HUGH Quirra, of Charlestown, of the county of Middlesex, and State of Alidassachusetts, have invented an improved Elastic Trace-Gonnection; and do hereby'declare the same to be fully described in the followingspecification and represented in the accompanying drawings, of which- Figure l is' a top view;

Figure 2, a front elevation;

Figure 3, a horizontal section; and

Figure 4, a vertical and transverse sectionpof it.

4The body A of the connection is a cylindrical case or box, provided with a screw shank, a, extended down from its bottom, the said shankl being for the purpose of fixing the body tothe cross-ba-r of a paix` of thills, a nut, b, screwed on' the shank, being employed in the fixation of the shank to the said cross-bar.

'.lhere is a slot, c, made through the front side of the box, andparallel with its bottom, and there is also'within the box, and extended radially from its inner circumference, an abutment; d.

Arranged centrally within the box is a pin, e, which may be a continuation of the shank.

1t serves as a pivot for 'an arm, B, which extends through the slot e, and is provided with a button, or knob, j, on which the end of a trace is to be buttoned or hitched when the trace-connection may be in use.

A helical spring, C, arranged within the box in manner as represented in the drawings, bears at one end against the abutment, and at the other against, or is thereabouts fixed, to the arm.

l `urther1nore, there is also fixed to the arm, and so as to extendfrom it and between the spring and the inner 'circumference of 4the box, a curved plate or spring guard D. This plate, by moving with the arm and the spring, prevents the spring,- while contracting, from jamming against the inner circumference of the box, or being worn through or injured by contact there- With, as it would be soon likelyto be during use of the trace-connection.

The guard-D also serves as a cover to the aperture, or slot c, while the arm may be in movement as the guard is to extend in both directions fro-In the arm, in manner as represented.

.ceive suchtenon.

The guard thus answers to keep'mud or dust or foreign 'matters from going through theslot and into the box when such would be likely to impede the action of the spring or he otherwise injurious.

The lower part of the box A is provided with a prismatietenon, h., and also with a disk, or plate, E, made with a socket, fir.. corresponding with and to re- This disk, or socketed plate is to be screwed on the cross-bar of the thills, and is to aid n in supporting the trace-connection and preventing it I am aware. that anelastic trace-connection is not new, or, in other words, that the application of a spring to the shafts and trace or breast-band of la harness, so as to intervene between the shafts and the trace or breastband, in order to relieve the carriage and horse from the effects of sudden forward movements of the latter, is old. Therefore, I make vno claim to such, in the abstract.

What I claim as my invention or improvement is as follows, viz:

The arrangement of the box A, abutment d, pivot e, helical spring C, and the movable arm B, provided with the trace-button, as explained.

Also, the combination and arrangement of the spring guard D with the radial arm B, the helical spring C, the abutment d, and the box A, and the slot c thereof, the whole being` substantially' as and. for thc purpose speciiied. HUGH QUINN.

Witnesses 1t. H. EDDY, S. N. PIPER.V

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