having Brass Covered Heads.
Year: 1885

page_text: .
having Brass Covered Heads.
I, GEORGE FREDERICK HALL of the Firm of William Foley Hall and Sons of
Cambrian Works St Paul's Square, Birmingham, in the County of Warwick,
Manufacturer, do hereby declare the nature of said invention for "IMPROVEMENTS
IN THE MANUFACTURE OF DRUGGET PINS, AND NAILS HAVING BRASS COVERED
HEADS to be as follows:-
"
My invention has reference to the manufacture or production of drugget pins
and nails having brass covered heads; such for example, as rivets, trunk nails,
furniture nails and other pins and nails of like manufacture.
By my invention, the manufacture of the said pins or nails is much simplified
and economised.
.
In the ordinary method of manufacture a steel or iron pin is rivetted at its
shank or stem end to a thick disc or washer cut from sheet iron or some other.
inferior metal; and upon this disc a thin brass shell is closed, so as to entirely
cover or envelope the said head, so as to give it the appearance of solid brass.
By my invention, I make the spike and the head in one piece by the process of
casting which is afterwards annealed so as to give to it the necessary, malleability―
This malleable casting of a combined head and spike or shank, is then shaken. in
a barrel, in the usual way so as to remove any roughness, and thereby smooth the
surface-The edge of the head is then operated upon by tools so as to produce
perfectly square or sharp edges, which edges may be either straight or chamfered
according to the character of pin or nail to be made and upon this head a thin
shell of sheet brass is closed by processes, commonly known.
By making the head and spike or stem in one piece, in malleable cast iron,
considerable strength is thus attained, as there is no possibility of the head
becoming detached from the spike or stem as is common with those of the
ordinary manufacture; and further the top of the head is perfectly flat which
gives a better bearing for the thin brass covering shell or cap.
The application of my invention to hemispherical heads and picture nails, differs
in no essential respect from its application to a drugget pin as hereinbefore
described.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Drugget Pins and Nails
having Brass Covered Heads.
I, GEORGE FREDERICK HALL of the Firm of William Foley Hall & Sons of
Cambrian Works St Pauls Square, Birmingham in the County of Warwick,
Manufacturer, do hereby declare the nature of said invention for "IMPROVEMENTS
IN THE MANUFACTURE OF DRUGGET PINS AND NAILS HAVING BRASS COVERED
HEADS," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :—
My invention has reference to the manufacture or production of drugget pins
and nails having brass covered heads; such for example, as rivets, trunk nails,
furniture nails and other pins and nails of like manufacture.
By my invention, the manufacture of the said pins or nails is much simplified
and economised.
:
In the ordinary method of manufacture, a steel or iron pin is rivetted at its
shank or stem end to a thick disc or washer cut from sheet iron or some other
inferior metal; and upon this disc, a thin brass shell is closed, so as to entirely
cover or envelope the said head, so as to give it the appearance of solid brass.
By my invention, I make the spike and the head in one piece by the process of
casting which is afterwards annealed so as to give to it the necessary malleability-
This malleable casting of a combined head and spike or shank, is then shaken in a
barrel in the usual way, so as to remove any roughness and thereby smooth the
surface The edge of the head is then operated upon by tools, so as to produce
perfectly square or sharp edges, which edges may be either straight or chamfered
according to the character of pin or nail to be made; and upon this head, a thin
shell of sheet brass is closed by processes commonly known.
By making the head and spike or stem in one piece, in malleable cast iron,
considerable strength is thus attained, as there is no possibility of the head
becoming detached from the spike or stem, as is common with those of the
ordinary manufacture; and further, the top of the head is perfectly flat, which
gives a better bearing for the thin brass covering shell or cap.
The application of my invention to hemispherical heads and picture nails, differs
in no essential respect from its application to a drugget pin as herein-before
described:
"
I will now proceed to describe with reference to the accompanying Drawing the
manner in which the same is to be performed-
Figure 1 is a vertical section of a drugget pin made according to my invention,
in which the spike and head of the said article are made in one piece of inetal by
the process of casting Figure 2 shows the said drugget pin before the external or
boundary edges of the head have been clipped of superfluous metal, and trued-
Figure 3 shows, the same clipped, and finished or trued; that is, the head is made
perfectly concentric to the stem, by placing the stem point upwards in the die a
figure 4, when on the descent of the upper tool b, the stem or spike of the drugget
pin passes into the concentric hole 62 up the middle of the die, thereby determining

page_text: the concentricity of the head with respect to its stem-The spike or stem is
pointed or shaped by rotary cutters, or by tools and pressure-Figure 5 represents
in section the said drugget pin and sheet metal covering cap separately-Figure 6
shows the cap upon the head before being closed or gathered in on the underside.
In carrying out my invention, I take a combined head and spike c, d figure 2,
which has been produced by the process of casting, and afterwards annealed to
give it the required malleability-This malleable casting is then placed in a
shaking barrel, and all roughness from the surface removed-The edges are then
clipped by the tools figure 4; and upon the head, thus prepared, a thin metal
covering cap d is closed by dies and pressure-The nail is then further operated
upon by dies and pressure, so as to chamfer or bevel off the edges marked e,
thereby producing a drugget pin figure 1 as represented-Figure 7 is a plan of
underside of the said figure 1, and figure 8 is a plan of (top side) figure 3.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is,
Forming together in one piece, the heads and spikes or shanks of drugget and
other like pins, by the process of casting in malleable iron, and other metals; and
which said pins are afterwards annealed, shaped, finished, and a covering cap of
thin sheet metal closed and shaped upon the head part, by the process or
combination of processes herein described and set forth.
Dated this seventeenth day of May 1886.
GEORGE FREDERICK HALL.
By Henry Skerrett,
Agent for the Applicant.