Process for Moulding Brake Shoes
Year: 1895

page_text: Date of Application 3rd My 1895-Accepted, 8th June 1895
Process for Moulding Brake Shoes
I, ARCHIBAID BRAKE residing at 327 Clinton Street, in the City of Toronto
in the County of York and Province of Ontario Moulder, do hereby declare the
nature of this invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement
In the manufacture of brake shoes the cost of the manufacture is considerably
higher than what it should be, owing to the present complicated, slow and tedious
method of arranging the moulds for casting the brake shoes and this invention
relates to a certain new and useful process whereby a considerable saving of time
in the construction of the moulds can be effected, with a consequent siving in the
cost of manufacture of the bi ike shoes, and the invention consists e sentially of
arranging a series of shoe patterns on a bar and providing a drag of sufficient size
to receive the series of shoe patterns, and fitting the drag with a metallic cope
which will serve the dual purpose of a follow board and cope in order that the
follow board may be entirely dispensed with in the construction of the moulds,
and saving effected of approximately two-thuds of the moulder > time
invention being hereinafter more fully set forth and more particularly pointed out
in the claims
In the drawings
Fig 1 is a perspective view of the box
Fig 2 is a perspective view of the drag and shoe patterns
Fig 3 is a perspective view of the drag and moulds
Fig 4 is a perspective view of the cope
Fig 5 is a perspective view of one of the openings in the cope
the
Like letters of reference refer to like parts throughout the Specification and
drawings
I he drag A is of ordinary size and shape Supported in the drag A is a bar B
to which are fastened a series of shoe patteins C Between each adjacent pair of
shoe patterns is an interval D and between the under side of the shoe patterns ▸
and the bottom of the drag A is a space L The intervals D between each
adjacent pair of shoe patterns Care of a uniform size, and between the ends of the
shoe patterns C and the sides of the drag A are spaces F-1 respectively and
between the outer sides of the end shoe patterns and the ends of the drag A are
spaces G-G respectively Connected to each end a¹ of the drag A is a lug H,
and extending upwardly from each of the lugs H is a pin I The lugs H are
located substantially at the middle of each end a¹ and the pins I pass through the
ends of the bar B, in order that the bar may always be in its proper position and
the shoe patterns in the proper relation to the box when they are within the drag
Fitted to the top of the drag A is a metallic cope J Each end of the cope is
provided with an outwardly extending lug K corresponding in po ition with the
lugs H aud passing through the lugs K are the pins I The metallic cope J
completely covers the top of the drag A, and the under side of the cope J is cui ved
to correspond with the curvature of the shoe patterns C, in order that the under
side of the cope will fit snugly against the top of the shoe patterns and make,a
perfect bearing for the moulding sana packed into the intervals D between the shoe
patterns so that a perfect clearance will be formed at the top of the inters als D for
the removal of the shoe patterns C In the top of the cop J are a series of
lateral openings L, which correspond in size and location with the size and location

page_text: of the shoe patterns C, and between each adjacent pur of openings L is a metallic
bar or strip M, and these metallic strip correspond in size and location with the
size and location of the intervals D between each adjacent pair of shoe patterns C
Between the extreme edge of the cope and the openings L is a metallic strip N
corresponding in size with the space F, and between the opposite edge is a
metallic strip 0 corresponding in size with the space F1 and at each end of the
cope Je metallic strips P corresponding with the spaces G-G' to form a perfect
bearing for the moulding and in the spaces F-1' and G-G' Surrounding eich
of the openings Li an upwardly extending metallic flange in order that there will
be sufficient depth to the metallic cope I between the top of the flange Q and the
under side of the cope J to receive and securely hold the moulding and within the
openings L When it is desired to employ chills in conjunction with the cope one
side of each of the openings L is fitted to icceive a metallic plate R
To each of
By
plates R are connected a series of chills S These chills S may be of any
suitable size or shape in order to throw the required chill into the shoe
securing the chills S to a plate R, attaching this plate R to the cope, it is possible
to render the chills interchangeable, and by this means mal e iny style of chilled
shoe and also by securing the chills to a plate which is removably connected to the
In the
cope it is possible to entirely remove the chills and cast a soft metal shoe
operation of the invention on the shoe patterns C are placed within the drag A
The
The cope is then fitted to the diag and the box is turned upside down
moulding sand is placed in the box from the under side of the diag A and is packed
into the intervals D between the shoe patterns C and into the spaces F-F1 and
spaces G-G¹, and into the bottom of the drag, the cope I remuning in place
and making a perfect bearing on all of the moulding sand in the intervals and
space> After the moulding sand has been pacl ed into the intervals D and
spaces G-G' and the bottom of the box is filled level with its lower edge of the
drag the box is turned upside down After the box has been turned upside do in
the moulding sand is filled into the openings L in the cope J, the shoe patterns C
making a perfect bea ing for the bottom of the moulding sand in the openings L
When the openings L hive been parked full of moulding sand the cope is removed
to permit of the withdrawal of the patterns from the diag The cope is then
replaced and the metal is poured into the box through the gates F To divide the
flow of the metal in the drag Aa metallic plate is placed across the middle of the
The metal then flows into
hox passing through the sand in the middle interval D
the spaces left by the shoe patterns Above each of the spaces left by the shoe
patterns C is one of the openings L, and as the moulding sand in the openings Lis
level with the under side of the cope I the metal will rise in the spaces left by the
shoe patterns until it comes in contact with the bottom of the sand in the openings L
The metallic strips M are above the sand walls U between the mould spaces, and
form a tight contact with the sand wall It might also be stated that when
packing the sand into the box whilst the shoe patterns C are within the drag the
cope J forms a perfect bearing on all the m ulding sand within the diag A and
allows of a perfect clearance for the removal of the shoe patterns C when being
withdrawn By fitting each of the openings L in the cope J with a series of
chill it is possible to throw a chill of any desired shape into the pattern at any
desired point
Having now particularly described and ascertained the nature of my said
invention what I claim is
1 The process for moulding brake shoes hereinbefore described
2 A process for moulding brake shoes consisting of arranging a shoe pattern
within the drag and providing the drag with a cope which will form a perfect
bearing for the moulding sand, then filling the drag from the under side with
moulding sand and packing it around the shoe pattern against the cope, then
removing the shoe pattern and pouring the molten metal into the mould, substan-
tially as specified

page_text: 3 A process for moulding brake shoes consisting of arranging a shoe pattern
within the drag and providing the drag with a cope which will form a perfect
bearing for the moulding sand and forming in the cope an opening corresponding in
size and location with the shoe pattern and filling the drag from its under side with
moulaing sand and packing it around the shoe pattern against the cone and filling
the opening in the cope with moulding sand and packing tight against the shoe
pattern then removing the cope and shoe pattern then replacing the cope and
pouring the molten metal into the mould, substantially as specified
4 A process for moulding brake shoes consisting of arranging a series of shoe
patterns within the drag with an interval between each adjacent pair of shot
patterns and providing the drag with a cope which will form a perfect bearing for
the moulding sand, having an opening above each shoe pattern, each opening
corresponding in size and location with its respective shoe pattein and filling the
drag from its under side with moulding sand packing it around the shoe patterns
and into the intervals between them and tightly against the under side of the cope
and filling the openings in the cope with moulding sand, then removing the cope and
shoe patterns and then replacing the cope and pouring the molten metal into the
mould, substantially as specified
o A process for moulding biake shoes consisting of arranging a series of shoe
patterns within the drag and providing a cope which will form a perfect bearing for
the moulding sand having a series of openings corresponding in size and location
with the size and location of the shoe patterns, and providing each of the openings
in the cope with a series of chills and packing the sand into the drag from its under
side into the intervals between and around the shoe patterns and tightly against the
under side of the cope, then filling the openings in the cope with moulding sand
then removing the cope and shoe patterns, then replacing the cope and pouring the
molten metal into the moulds, substantially as specified
6 A process for moulding brake shoes consisting of arranging a shoe pattern
within the drag and providing the drag with a cope which will form a perfect
bearing for the moulding sand and forming in the cope a series of openings corre-
sponding in size and location with the shoe patterns and removably attaching to the
opening in the cope a series of chills which come in contact with the shoe patterns,
and packing the moulding sand into the drag from its under side around and against
the shoe patterns, and filling the openings in the cope with moulding sand, then
removing the cope and shoe patteins, then replacing the cope and pouring the
molten metal into the mould, substantially as specified
Dated this 3rd dow of Mox A D 1905
HUGHES & YOUNG,
23, Coleman Street, London, Agents