The diaphragm, B, which is the essential part of the instrument, should be made as carefully as possible from ferrotype tin, commonly called tintype tin.
The diaphragm, which should be of thin ferrotype tin, should be soldered to the box.
The diaphragm C, which is the essential part of the instrument, should be made as carefully as possible from ferrotype tin, commonly called tintype tin.
The ferrotype or tintype is now about the only product of the positive collodion process of considerable importance, and is the only one that will receive consideration in these pages.
Those desiring more extended instructions in the making of plate pictures are referred to the work on that subject, entitled, "The Ferrotype and How to Make it," published by E.
Ferrotype plates are sold by all dealers in photographic materials; they are mostly manufactured by two large concerns in Worcester, Mass.
By mounting aristo prints in this way one avoids getting paste on the face of the picture, and it will retain much of the gloss imparted to it by the ferrotype plate.
Aristo prints can be mounted direct from the ferrotype plate or the ground-glass to which they have been squeegeed to dry.
How to prepare a polishing solution forferrotype plates.
Directions for polishing ferrotype plates will be found in Nos.
The prints treated in this way lose little of the gloss made by the ferrotype plate.
Tone them, and squeegee them to theferrotype plate.
I considered theFerrotype the best form of collodion positive, and did several of them, but my chief work was plain and coloured prints from collodion negatives, also small portraits on visiting cards.
Glossy prints are not much more difficult to make than dull-surfaced prints, the only necessary additional effort being the use of a squeegee plate, or ferrotype plate.
When glossy prints are dried in contact with a ferrotype plate the surfaces are highly polished, and this gives the prints more brilliancy.
The most distinct articulate speech was obtained from an ordinary ferrotype telephone plate, secured at the edges, and one of the glass tubes you see here attached to it.
I tried putting in a large number of these tubes, all in quantity, on the bottom of a ferrotype plate, but with no advantage.
I put one on a piece of ferrotype plate, and that gave really the best result I ever got.
Now of course when the current goes round the coil, and thus converts the soft iron into an electro-magnet, the latter instantly attracts the ferrotype plate which is immediately above it.
Thereupon the attraction of the magnet ceases, and the ferrotype plate flies back to its former position and so joins the platinum wire and foil, and starts the current again, and the former process is repeated.
The core having been pushed through the hole again, up to the circle of cardboard, the ferrotype plate is placed in the top of the box, and the box is shut up.
The ferrotype plate having been procured by some means or other, the next thing is to cut from it a circle just small enough to go inside the rim of the top of the tooth-powder box.
The screw C must be therefore screwed down till the platinum wire at its tip is just in contact with the foil on the ferrotype plate.
Now the ferrotype plate must be exactly free of the end of the core and that is all.
Adjust the screw so that the platinum point is within a minute distance of the ferrotype plate when the brass support is screwed down at the ends to the side of the box lid, and screw it down with small screws firmly in its position.
The ferrotypeplate therefore vibrates with tremendous rapidity between the core and the platinum screw.
The increased sound is probably due to the body of the trumpet being composed of brass, which, vibrating in unison with the ferrotype plate, increases the sound.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ferrotype" in a variety of sentences. We hope that you will now be able to make sentences using this word.
