Music Trade Review
Issue: 1916 Vol. 63 N. 7 - Page 45
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THE MUSIC TRADE REVIEW
45
TIME AN ESSENTIAL FACTOR_IN_ VENEER DEPARTMENTS
Too Much Haste in Working Cross-Banded Stock Through the Sander Will Often Result in
Uneven Surfaces and Other Defects When the Face Veneer is Applied
The superintendent of a wood-working plant
in which a veneer department had recently been
installed, put the following problem up to a
writer in the Canadian Woodworker a few days
ago: "The work being turned out by our ve-
neer department is not satisfactory. Instead
of having a smooth, flat surface, it is all tiny
hills and hollows and we cannot understand
why. We use a chestnut core and run it through
the sander, using coarse paper before laying
the cross-banding, which is 1/20 in. rotary cut
poplar. Two days after the cross-banding is
laid we put the stock through the sander and
apply the face veneer. The unevenness is not
noticed until after we get a coat of varnish on
in the finishing room and then it becomes worse
as the time passes."
The whole trouble is undoubtedly due to the
fact tl.at they only allow two days before tak-
ing the cross-banded stock out and sanding it.
It should stand for at least two weeks to give
it time to dry out thoroughly before it is sanded
and the face veneer laid. A review of the meth-
ods of handling core stock and veneer, as car-
ried out in one or two large factories, may
prove interesting to readers who have ex-
perienced trouble on this or similar points. The
core stock after being accurately thicknessed in
the machine room is run through a planer,
which, instead of being fitted with ordinary
planer knives, has toothed knives in their place.
The idea of the toothed knives is to scratch up
the hard, smooth surface of the core stock so
that the glue will have a better chance to pene-
trate and take a grip on the wood. After being
toothed the core stock is sent to the veneering
department to be cross-banded.
The gluing of the core stock can be done
either by hand or with a gluing machine, as
long as a satisfactory body of glue can be put
on. After the glue is put on it is allowed to
set, until, when touched with the end of the
finger it feels almost as if it were too hard.
Then the cross-banding is put on and the stock
put away in the press. It is generally allowed
to remain in the press over night and on being
taken out in the morning is piled away between
strips (of equal thickness) and allowed to stand
at least two weeks.
When the two weeks are up, if the stock is
needed it is taken to the sander and sanded with
coarse paper in order that every particle of
grease, etc., that may have adhered to it will
be removed. It is then ready for the applica-
tion of the face veneer, which has in the mean-
time been prepared in another department. The
method of preparing the face veneer consists
of cutting it into pieces suitable for the differ-
ent parts of the work and marking it so that it
can be used for the right parts, then gluing tape
across the ends to prevent it- from splitting
when the pressure is put on the press. After
the ends are taped the veneer is placed in a
rack (built for the purpose) and the rack placed
in a caul-box or other suitable heater. The
rack is constructed so that the heat will pass
freely through and dry all parts of the veneer.
The length of time the veneer should stay in
the heater depends on the amount of heat pres-
ent. However, it should stay in long enough
so that when taken out it will be perfectly dry.
After it has been dried the veneer is sent to the
department where it is to be laid on the cross-
banded core stock.
In laying the face veneer the process of glu-
ing and putting in the press, previously men-
tioned, is repeated. After the stock is re-
moved from the press it is piled away between
strips as before and allowed to remain for at
least eighteen or twenty days, after which it i>
taken to the cabinet room and made up into the
job for which it is intended.
Some Suggestions for the Elimination of This
Trouble in African Mahogany
Chicago
160 No. Fifth AT*.
The Ohio Veneer Co.
Quite frequently the user of African mahog-
any veneer has difficulty with short checks,
about one-half inch long, which run across some
of the strips. These checks are usually from
one-half to one inch apart and appear in gangs
of a dozen, more or less. There is. a difference
of opinion as to their cause, but a writer in
Veneers states that these checks are always
found where the surface of the veneer is end
wood, and after the veneer is cut and exposed
to the air this end wood throws off the mois-
ture more rapidly than does the surrounding
fiber, and, therefore, shrinks more rapidly, and,
San Francuc*
164 Haiuford Bid,.
CINCINNATI, O.
Importers and Manufacturers of Figured
Mahogany and Foreign Woods for high-
grade piano cases and cabinets.
York Office and Sample Room
Grand Central Palace Bldg.
Lexington Ave. and 46th St.
G. H. VAUGHAN. Eastern Representative
THE ANNUAL OUTPUT OF RUBBER
Plantations of the East Now Produce 70 Per
Cent, of World's Entire Supply
The estimated value of the world's rubber
output in 1915, based on a price of 67 cents a
pound, which is thought to be slightly under the
actual figure, is approximately $215,000,000, of
which $155,000,000 is attributable to the planta-
tions of the Middle East. As these plantations
have a total capitalization of about $282,000,000,
the estimate suggests, according to Consul
Harry Campbell, Singapore, an average profit
of about 50 per cent, covering all plantations,
both producing and non-producing. This would
appear to be within the facts, he says, as many
of the producing companies, at a price of 67
cents a pound, are reported to be reaping profits
of 100 and 200 per cent.
Figures supplied by Mr. Campbell to the De-
partment of Commerce show that the produc-
tion of plantation rubber in the East has in-
creased from practically nothing to 70 per cent,
of the world's supply in the last ten years. They
also show that the production of rubber in the
East last year was 54 per cent, larger than the
production of the entire world in 1906. Mr.
Campbell further points out that the production
of wild rubber in Brazil shows little change for
the ten-year period in question.
TO PROTECT LUMBER IN RUSSIA
Need of Conservation Along American Lines
Pointed Out
Russia must organize lumber enterprises along-
American lines if she is to supply lumber for
reconstruction work in the sections of Europe
ruined by the war, the Russian-American Jour-
nal of Commerce points out. The need for lum-
ber, says that journal, will be the great prob-
lem confronting Europe after hostilities cease,
some estimates placing the quantity of timber
that will be required by the countries now at
war at 50,000,000 cubic feet. The timber trade
of Central Russia, it is said, will not suffice for
meeting the tremendous demand, and the enor-
mous timber wealth of Northern Russia, the
Caucasus and Siberia must be drawn upon.
American methods of exploiting Russian for-
ests, continues the Russian journal, should be
introduced to prevent the trade from being
diverted elsewhere. K the needed changes are
introduced it is claimed that the result will be
the retention by Russia of the most desirable
world markets for lumber.
And when you're satisfied
that we've the best punch-
ings on the market, cut
clean and accurately from
the best of material in cellu-
loid, cloth, felt, fibre,
leather, paper, rubber or
whatever you want, give
us credit and send your
orders to
CFGDEPELACO
137 E A S T I3 T -£ ST.
NEW
YORK
being end wood and brittle, is unable to with-
stand the strain incidental to uneven shrinking,
with the result that it checks.
As this veneer is defective in the first in-
stance, extra care should be exercised in laying
it in order to minimize the possibility of fu-
ture trouble. Be sure and lay it right side up.
But before laying, the checks on the "wrong"
side, or the side that is to be turned down,
should be coated with glue, after which the ve-
neer should be thoroughly dried before being
laid. The glue coat on the under side will pre-
vent the glue coming through in large quanti-
ties when under pressure, and do away with
the trouble experienced from the edges of
these checks raising up after the goods are fin-
ished.
There are many factories with goods in stock
that are already checked, and how to make
them passable at the least possible expense is
the question. Give the surface a light sanding,
and with a pencil brush draw over the checks
a coat of thin shellac. Let this stand for twen-
ty-four hours, then sand and revarnish, accord-
ing to the quality of the goods and the amount
of rubbing they are to receive. It must be re-
membered that all the rubbing is to be done on
the varnish that is put on after the checks have
been shellacked, because to rub through this last
varnish and into the shellac or the old dry var-
nish beneath would give it the appearance of
having been skinned in places.
Consult the universal Want Directory of
The Review. In it advertisements are inserted
free of charge for men who desire positions
of any kind.
BRANCH OFFICES:
HOW TO PREVENT CHECKS
Lot Anf elet
224 Central Bldf.
are Apparent
Some of the sizes shown indicate the
variety of "SOSS" Hinges which we
manufacture for use on pianos, player-
pianos, talking machines and music
cabinets.
There is a particular "SOSS" Hinge
best suited for your requirements.
Our illustrated catalog " S " gives
complete and interesting information.
Write for a copy and for quotations on
four particular requirements.
Sois Manufacturing Company,
435-443 Atlantic A r c . Brooklyn, N. Y.
•
•mil
Minneapolis
3416SecondATe.,So.
Detroit
922 David Whitney
Bnildinf
THE MUSIC TRADE REVIEW
45
TIME AN ESSENTIAL FACTOR_IN_ VENEER DEPARTMENTS
Too Much Haste in Working Cross-Banded Stock Through the Sander Will Often Result in
Uneven Surfaces and Other Defects When the Face Veneer is Applied
The superintendent of a wood-working plant
in which a veneer department had recently been
installed, put the following problem up to a
writer in the Canadian Woodworker a few days
ago: "The work being turned out by our ve-
neer department is not satisfactory. Instead
of having a smooth, flat surface, it is all tiny
hills and hollows and we cannot understand
why. We use a chestnut core and run it through
the sander, using coarse paper before laying
the cross-banding, which is 1/20 in. rotary cut
poplar. Two days after the cross-banding is
laid we put the stock through the sander and
apply the face veneer. The unevenness is not
noticed until after we get a coat of varnish on
in the finishing room and then it becomes worse
as the time passes."
The whole trouble is undoubtedly due to the
fact tl.at they only allow two days before tak-
ing the cross-banded stock out and sanding it.
It should stand for at least two weeks to give
it time to dry out thoroughly before it is sanded
and the face veneer laid. A review of the meth-
ods of handling core stock and veneer, as car-
ried out in one or two large factories, may
prove interesting to readers who have ex-
perienced trouble on this or similar points. The
core stock after being accurately thicknessed in
the machine room is run through a planer,
which, instead of being fitted with ordinary
planer knives, has toothed knives in their place.
The idea of the toothed knives is to scratch up
the hard, smooth surface of the core stock so
that the glue will have a better chance to pene-
trate and take a grip on the wood. After being
toothed the core stock is sent to the veneering
department to be cross-banded.
The gluing of the core stock can be done
either by hand or with a gluing machine, as
long as a satisfactory body of glue can be put
on. After the glue is put on it is allowed to
set, until, when touched with the end of the
finger it feels almost as if it were too hard.
Then the cross-banding is put on and the stock
put away in the press. It is generally allowed
to remain in the press over night and on being
taken out in the morning is piled away between
strips (of equal thickness) and allowed to stand
at least two weeks.
When the two weeks are up, if the stock is
needed it is taken to the sander and sanded with
coarse paper in order that every particle of
grease, etc., that may have adhered to it will
be removed. It is then ready for the applica-
tion of the face veneer, which has in the mean-
time been prepared in another department. The
method of preparing the face veneer consists
of cutting it into pieces suitable for the differ-
ent parts of the work and marking it so that it
can be used for the right parts, then gluing tape
across the ends to prevent it- from splitting
when the pressure is put on the press. After
the ends are taped the veneer is placed in a
rack (built for the purpose) and the rack placed
in a caul-box or other suitable heater. The
rack is constructed so that the heat will pass
freely through and dry all parts of the veneer.
The length of time the veneer should stay in
the heater depends on the amount of heat pres-
ent. However, it should stay in long enough
so that when taken out it will be perfectly dry.
After it has been dried the veneer is sent to the
department where it is to be laid on the cross-
banded core stock.
In laying the face veneer the process of glu-
ing and putting in the press, previously men-
tioned, is repeated. After the stock is re-
moved from the press it is piled away between
strips as before and allowed to remain for at
least eighteen or twenty days, after which it i>
taken to the cabinet room and made up into the
job for which it is intended.
Some Suggestions for the Elimination of This
Trouble in African Mahogany
Chicago
160 No. Fifth AT*.
The Ohio Veneer Co.
Quite frequently the user of African mahog-
any veneer has difficulty with short checks,
about one-half inch long, which run across some
of the strips. These checks are usually from
one-half to one inch apart and appear in gangs
of a dozen, more or less. There is. a difference
of opinion as to their cause, but a writer in
Veneers states that these checks are always
found where the surface of the veneer is end
wood, and after the veneer is cut and exposed
to the air this end wood throws off the mois-
ture more rapidly than does the surrounding
fiber, and, therefore, shrinks more rapidly, and,
San Francuc*
164 Haiuford Bid,.
CINCINNATI, O.
Importers and Manufacturers of Figured
Mahogany and Foreign Woods for high-
grade piano cases and cabinets.
York Office and Sample Room
Grand Central Palace Bldg.
Lexington Ave. and 46th St.
G. H. VAUGHAN. Eastern Representative
THE ANNUAL OUTPUT OF RUBBER
Plantations of the East Now Produce 70 Per
Cent, of World's Entire Supply
The estimated value of the world's rubber
output in 1915, based on a price of 67 cents a
pound, which is thought to be slightly under the
actual figure, is approximately $215,000,000, of
which $155,000,000 is attributable to the planta-
tions of the Middle East. As these plantations
have a total capitalization of about $282,000,000,
the estimate suggests, according to Consul
Harry Campbell, Singapore, an average profit
of about 50 per cent, covering all plantations,
both producing and non-producing. This would
appear to be within the facts, he says, as many
of the producing companies, at a price of 67
cents a pound, are reported to be reaping profits
of 100 and 200 per cent.
Figures supplied by Mr. Campbell to the De-
partment of Commerce show that the produc-
tion of plantation rubber in the East has in-
creased from practically nothing to 70 per cent,
of the world's supply in the last ten years. They
also show that the production of rubber in the
East last year was 54 per cent, larger than the
production of the entire world in 1906. Mr.
Campbell further points out that the production
of wild rubber in Brazil shows little change for
the ten-year period in question.
TO PROTECT LUMBER IN RUSSIA
Need of Conservation Along American Lines
Pointed Out
Russia must organize lumber enterprises along-
American lines if she is to supply lumber for
reconstruction work in the sections of Europe
ruined by the war, the Russian-American Jour-
nal of Commerce points out. The need for lum-
ber, says that journal, will be the great prob-
lem confronting Europe after hostilities cease,
some estimates placing the quantity of timber
that will be required by the countries now at
war at 50,000,000 cubic feet. The timber trade
of Central Russia, it is said, will not suffice for
meeting the tremendous demand, and the enor-
mous timber wealth of Northern Russia, the
Caucasus and Siberia must be drawn upon.
American methods of exploiting Russian for-
ests, continues the Russian journal, should be
introduced to prevent the trade from being
diverted elsewhere. K the needed changes are
introduced it is claimed that the result will be
the retention by Russia of the most desirable
world markets for lumber.
And when you're satisfied
that we've the best punch-
ings on the market, cut
clean and accurately from
the best of material in cellu-
loid, cloth, felt, fibre,
leather, paper, rubber or
whatever you want, give
us credit and send your
orders to
CFGDEPELACO
137 E A S T I3 T -£ ST.
NEW
YORK
being end wood and brittle, is unable to with-
stand the strain incidental to uneven shrinking,
with the result that it checks.
As this veneer is defective in the first in-
stance, extra care should be exercised in laying
it in order to minimize the possibility of fu-
ture trouble. Be sure and lay it right side up.
But before laying, the checks on the "wrong"
side, or the side that is to be turned down,
should be coated with glue, after which the ve-
neer should be thoroughly dried before being
laid. The glue coat on the under side will pre-
vent the glue coming through in large quanti-
ties when under pressure, and do away with
the trouble experienced from the edges of
these checks raising up after the goods are fin-
ished.
There are many factories with goods in stock
that are already checked, and how to make
them passable at the least possible expense is
the question. Give the surface a light sanding,
and with a pencil brush draw over the checks
a coat of thin shellac. Let this stand for twen-
ty-four hours, then sand and revarnish, accord-
ing to the quality of the goods and the amount
of rubbing they are to receive. It must be re-
membered that all the rubbing is to be done on
the varnish that is put on after the checks have
been shellacked, because to rub through this last
varnish and into the shellac or the old dry var-
nish beneath would give it the appearance of
having been skinned in places.
Consult the universal Want Directory of
The Review. In it advertisements are inserted
free of charge for men who desire positions
of any kind.
BRANCH OFFICES:
HOW TO PREVENT CHECKS
Lot Anf elet
224 Central Bldf.
are Apparent
Some of the sizes shown indicate the
variety of "SOSS" Hinges which we
manufacture for use on pianos, player-
pianos, talking machines and music
cabinets.
There is a particular "SOSS" Hinge
best suited for your requirements.
Our illustrated catalog " S " gives
complete and interesting information.
Write for a copy and for quotations on
four particular requirements.
Sois Manufacturing Company,
435-443 Atlantic A r c . Brooklyn, N. Y.
•
•mil
Minneapolis
3416SecondATe.,So.
Detroit
922 David Whitney
Bnildinf
Future scanning projects are planned by the International Arcade Museum Library (IAML).