IMPROVEMENTS IN BUCKLES FOR HARNESS, TRACES, STRAPS, BANDS, AND THE LIKE.
Year: 1879

page_text: LETTERS PATENT to John Imray, of No. 20, Southampton Buildings, in the
County of Middlesex, for the Invention "IMPROVEMENTS IN BUCKLES FOR
HARNESS, TRACES, STRAPS, BANDS, AND THE LIKE. A communication from
abroad by Adèle Engström, of Paris, in the Republic of France.
aled the 9th September 1879, and dated the 20th March 1879.
PROVISIONAL SPECIFICATION left by the said John Imray at the Office.
of the Commissioners of Patents on the 20th March 1879.
JOHN IMRAY, of No. 20, Southampton Buildings, in the. County of Middlesex.
"IMPROVEMENTS IN BUCKLES FOR HARNESS, TRACES, STRAPS, BANDS, AND THE
LIKE. [A communication from abroad by Adèle Engström, of Paris, in the
Republic of France.]
This Invention relates to the construction of buckles for harness, traces, straps,,
bands, and the like, in such a manner that the fastening effected by them can be
readily undone even when the trace, strap, or band is under full strain. For this
purpose the tang of the buckle instead of being jointed in the usual way on the
cross axis at the back of the buckle is jointed on a crank axis, which is itself
jointed on the said cross axis and which extends backwards, forming a loop to
which a small strap or pull can be attached.
When the buckle is fastened the
crank is in such a forward position that the tang is advanced and inserted in a hole
of the strap or band, and the loose end of the latter extending backwards covers
the back part of the crank axis and holds, it down, being thrust into a loop in the
usual way. In order to undo the fastening, the loose end of the strap or band is
withdrawn from the loop and raised so as to expose the back part of the crank
axis; this being then pulled up turns the crank partly round so as to draw the
tang of the buckle backwards out of the hole in which it was engaged, thus undoing
the fastening which it effected.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Imray in the Great Seal Patent Office on the 15th September
1879.
JOHN IMRAY, of No. 20, Southampton Buildings, in the County of Middlesex.
"IMPROVEMENTS IN BUCKLES FOR HARNESS, TRACES, STRAPS, BANDS, AND THE
LIKE." A communication from abroad by Adèle Engström, of Paris, in the
Republic of France.
This Invention relates to the construction of buckles for harness, traces, straps,
bands, and the like, in such a manner that the fastening effected by them can be
readily undone even when the trace, strap, or band is under full strain. For this
purpose the buckle is constructed as shewn in the accompanying Drawings. Fig. 1
represents a longitudinal section through the buckle as it holds engaged the two
parts of a trace; Fig. 2 is a plan of the buckle shewing its attachment to one part
the trace; and Fig. 3 is a side view shewing the buckle in the condition of being
disengaged from the other part of the trace: Fig. 4 is a plan of a similar buckle
made with several tangs as it might be applied to a driving belt for machinery.
In these Figures, the same reference letters are employed to indicate corresponding
parts.
The tang A is made with an eye so that it can turn freely round a pivot formed
on a crank arm a, which itself can turn on the pin o of the ordinary buckle loop B.
The crank arm a forms part of a frame constituting a bent lever, the arms C of
which can be moved by a tag or pull D. To the loop B of the buckle is attached
a, cross bar E which serves to guide the tang A in its movement for disengagement.
When the buckle is engaged, as shewn in Fig. 1, the tang enters a hole in the
strap X, which lies over and covers the frame Cand tag D. When it is desired to
disengage the buckle the end of the strap X is withdrawn from the loop Y and
bent up so as to give access to the tag D. On pulling this tag the arms C are
raised, as shewn in Fig. 3, causing the crank a to withdraw the tang A from the
hole in the strap X, the tang being guided in its movement of withdrawal by the
cross bar E, against which it bears.
Having thus described the nature of the said Invention, and in what manner the
same is to be performed, as communicated to me by my foreign correspondent, I
claim,―
The construction of buckle having its tang mounted on a crank, by the partial
turning of which it can be withdrawn while under strain, substantially as herein
described.
:
In witness whereof, I, the said John Imray, have hereunto set my hand and
seal, this Eleventh day of September, in the year of our Lord One thou-