Improvements in Props and Framework for Mines.
Year: 1893

page_text: Date of Application, 5th June, 1893
Complete Specification Left, 3rd Mar., 1894-Accepted, 21st Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Props and Framework for Mines.
HILDA CAMERON BARNES Melbourne House Harrington Cumberland Spinster
do hereby declare the nature of this invention to be as follows:-
My invention has reference to props and framework used in mines for supporting
the roof and sides of workings and has for its object to obtain strength and safety
with economy and rapidity of erection. To this end I make use of angle-iron
of Hand T sections and deck-beams and I notch the H and T sections and deck-
beams in the webs at one or both ends and I also notch corresponding pieces of
Hand T sections of angle-iron in the flange at or near one or both ends and in
suitable positions so that such notches enable the pieces to be framed together and
lock into each other thereby forming supports of great strength and safety pre-
venting springing and slipping and affording ready means of erection and security
to the roof and sides of the mines. And I also employ suitable sized pieces of
rolled or cast iron T section notched in the web for the purpose of forming
saddle-pieces and floor or sole-pieces to fit and ride upon and be placed under the
deck-beams so as to present a wide bearing surface to the floor and roof and afford
secure support. And I also employ iron and steel tubes or pipes which I notch
vertically at the ends for the purpose of framing them together with the H and
T sections of angle-iron. Such old or new H and T sections of angle iron deck-
beams tubes and pipes notched and so thereby framed and locked together enable
scrap or waste material to be made useful and valuable and effects a saving owing
to their indestructible character permits rapid erection gives great support and
contributes to safety of life and limb.
Dated this Third day of June 1893.
HILDA CAMERON BARNES.
COMPLETE SPECIFICATION.
Improvements in Props and Framework for Mines.
I HILDA CAMERON BARNES of Melbourne House Harrington in the County
of Cumberland Spinster 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 and accompanying drawings:-
My invention has reference to props and framework used in mines for supporting
the roof and sides of workings passages tunnels adits and shafts and has for its
object to obtain strength and safety combined with economy and rapidity of
erection.
To this end I make use of angle iron and steel of H and T sections and iron and
steel deck beams and iron and steel tubes and pipes.
Old angle iron or steel, deck beams and tubes and pipes which have been
discarded for structural uses can also be rendered serviceable for the purposes of
my invention.
I cut the angle iron and steel, and deck-beams tubes and pipes into suitable
lengths if they are not already short enough and I cut slot notch or shape the ends
and other parts of the pieces as required so that they can be framed together as
Price T

page_text: will be hereinafter indicated.
pieces and sole pieces.
In cases of simple props I provide them with saddle
In order that my invention may be fully understood I will refer in this place to
the accompanying drawings.
Fig. 1 of the said drawings represents a prop consisting of a length of deck-
beam a. a saddle-piece b. of T section angle iron notched or cut in the stalk and
a sole piece 61 these pieces preventing the prop ends from being forced into the
roof and floor. I do not claim these saddle-pieces and sole-pieces as novel apart
from their combination with the length of deck-beam of the indicated character.
Fig. 2 is a plan view of the sole-piece with the deck-beam section indicated by
dotted lines.
Figs. 3. to 8 in Sheet 1 illustrate some of the formations of H section girders or
angles notched or cut for the purposes of my invention.
Fig. 9. in Sheet 1 illustrates a formation of deck-beam notched or cut for the
purpose of my invention.
Fig. 10 in Sheet 1 and Fig. 11. 12. and 13 in Sheet 2 illustrates some of the
formations of T section angles notched or cut for the purposes of my invention.
I also notch or cut T section angles vertically in the stalk somewhat as indicated
in Figs. 3 and 4. in Sheet 1.
Figs. 14. 15. 16. and 17. in Sheet 2, illustrate some of the formations of tubes
and pipes notched or cut for the purposes of my invention.
In Fig. 18 in Sheet 3. are two lengths of H section girder c. c. set vertically
notched or cut in the web at the roof ends as in Fig. 3. in Sheet 1 to engage
with and lock into a cross-piece d. of H section girder the lower flange or flat being
notched or cut at or near the ends and in suitable positions somewhat as indicated
in Fig. 5. in Sheet 1 to recess into the vertically set pieces.
66
In Fig. 19. a bottom cross-piece e. is added to the construction of Fig. 18 being
intended for use in cases wherein there is a tendency for the floor to heave or
rise the vertically set pieces c. c. being notched or cut in the web at the floor-ends
as indicated in Fig. 4 in Sheet 1 and engage with and interlock into the bottom
cross-piece e. that is notched or cut in the upper flange or flat somewhat as indicated
in Fig. 5. It will be seen this construction is reversible side and side and roof and
sole. The bottom cross piece e. is also useful as a sleeper to fix the road rails
or tramgate rails. This construction horizontally placed is also suitable for
cribbings" to support the walls or sides of right angled shafts where there is
great lateral pressure and springing, bulging and twisting inwards of the wood
casing or lining of the shaft. The frames are bolted or spiked to the casing
in the ordinary mining way. Modifications of Figs 18. and 19 may be constructed
of vertically set lengths of deck-beams notched or cut in the web as indicated
in Fig. 9 in Sheet 1 to combine or engage with a cross-piece of H section girder
or section angle cut in the flange flat or table as indicated in Figs. 6 and 10
in Sheet 1. Vertically set lengths of tubes or pipes notched or cut in their ends
somewhat as indicated in Fig. 14 in Sheet 2 combine and engage with a cross
piece of Hsection girder or T section angle notched or cut in the flange or flat or
table somewhat as indicated in Figs. 5. 7. 8 and 10 in Sheet 1 according to the
diameter of the tube or pipe. Vertically set tubes and pipes notched or cut in
their enda somewhat as indicated in Figs. 15 & 16 in Sheet 2. combine with cross
pieces of H section girders and T section angles. Vertically set lengths of tubes
and pipes notched or cut in their ends somewhat as indicated in Fig. 17 combine
with cross-pieces of deck-beams.
Fig. 20 illustrates combinations of H section girders and T section angles
arranged as supports for circular shafts and other passages.
In this example
vertically placed H section girders f. are set with a flange or flat against the wall
or side of the shaft and are fished or connected together so as to form continuous
supports which may extend from the top to the bottom of the shaft or as far as is
Decessary. At intervals horizontal supports g. formed or made up of T section
angles of suitable lengths some of which are reversed to enable the stalks to be
ך ་ -

page_text: parallel and press against each other somewhat as indicated in Fig. 13 in Sheet 2
and being suitably notched or cut in the stalks somewhat as indicated in Figs. 11.
and 12 in Sheet 2 to enable them to be bent or curved and framed together to
suit the shaft and are suitably bolted or riveted together through their stalks.
Iron or steel plates may be curved and bolted upon the inner flange of the
horizontally curved frames g. thereby forming a built-up cylinder.
As required knees or brackets are bolted upon the vertical pieces f. and suitably
secured to the horizontally curved pieces g.
In suitable positions curved horizontal pieces g. are notched or cut somewhat
as indicated in Fig. 5 in Sheet 1 to recess into a strainer bar or bars. It will be
seen that such combinations are capable of withstanding enormous lateral pressure.
It must be understood that similar combinations may be used in the lining of
shafts, passages, tunnels or adits which are inclined from the vertical. It must
also be understood that T section angles may be framed together or built up so
that in their combination they form H sections somewhat as illustrated in Fig. 13
in Sheet 2 and that they are notched or cut in the stalks and web substantially as
indicated in Figs. 3 and 4 and also they are notched or cut in the tables, flanges,
or flats substantially as indicated in Figs. 5. 6. 7. 8. and 10. I do not confine
myself to the use of old or waste material for the purpose of my invention as for
instance specially rolled T section angles somewhat as indicated in Figs. 21 and 22.
in Sheet 5. might be used with advantage owing to the greater facilities for the
rolling of such sections. The application of my invention is attended with several
advantages in addition to the saving arising from the use of scrap materials, as
for example, there is a saving of cost in consequence of the great strength of the
supports, and their comparatively indestructible character, the rapidity of erection,
and prevention of "springing," and "slipping" of workings. Also the use of such
supports will be attended with greater security to life and limb, and generally be
productive of new and advantageous industrial results.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed I declare that what I
claim is.
1. The combination of parts of the formation and for the purposes substantially
as set forth and indicated.
2. The use for the indicated purposes of lengths of iron and steel H section
girders or angles, T section angles, deck-beams, and tubes, and pipes, cut, notched,
nd prepared at the ends and in suitable positions to fit together substantially as
et forth and indicated.
Dated this First day of March 1894.
HILDA CAMERON BARNES.