NEW OR IMPROVED MACHINERY OR APPARATUS TO BE EMPLOYED IN COVERING TABLETS OF ANY DESIRED FORM OR SUBSTANCE WITH METAL FOIL, PAPER, OR OTHER MATERIAL
Year: 1876

page_text: PROVISIONAL SPECIFICATION left by William Cowper Pellatt at the Offico
of the Commissioners of Patents on the 30th March 1876.
WILLIAM COWPER PELLATT, of Saint John's Lane, Clerkenwell, in the County of
Middlesex. "NEW OR IMPROVED MACHINERY OR APPARATUS TO BE EMPLOYED IN
COVERING TABLETS OF ANY DESIRED FORM OR SUBSTANCE WITH METAL FOIL,
PAPER, OR OTHER MATERIAL,"
The Invention has for its object an improved arrangement of machinery or
apparatus for covering tablets or cards with metal foil, paper, or other material
instead of covering the same by hand, as heretofore.
In carrying the Invention into effect the cards or tablets are placed in an upright
hopper on one side of the machine, which hopper is open at the base on three of its
sides, thus forming a slit only sufficiently wide to admit one card at a time. Upon
the opposite side of the machine is an open box containing the sheet of metal foil
or other material with which the cards or tablets are to be covered.
Upon the machine being put into action a travelling sucker takes up one of the
sheets of foil and carries it into a register gauge directly over an aperture, the
exact shape of the tablet or card to be covered; a slide then passes through the
slit in the card hopper, forcing out one of the cards or tablets and delivering it in
a central position upon the top of the metal foil or other covering material. A
lever now descends fitted with a plunger exactly fitting the apertures in the base or
bed plate of the machine, and in its descent carries the tablet or card and foil or
other cover through the aperture, thus turning up the sides of the foil or other
covering material which project beyond the edges of the inside tablet or card.
To complete the folding a box is fitted underneath the base or bed plate of the
machine and allowed to rise and fall by means of suitable levers and kept in a
vertical line by means of guides. The sides of this box are hinged and are fitted
with levers, which rest upon friction pulleys rigidly fixed to the frame of the
machine.
Upon the tablet or card and metal or other cover being forced through the base
or bed plate as before mentioned the box rises underneath and receives them, tho
sides at this time being vertical. The box now begins to descend, and the outer
ends of the levers resting upon the friction pulleys cause the sides of the box to
turn on their hinges inwards until (the descent being completed) the sides are
horizontal, and the edges of the foil or other covering material completely folded

page_text: over the card or tablet. In its ascent the bottom of the box is released by a
suitable lever (thus allowing the completed tablet to fall out) and springs back into
position ready to receive the next tablet as it is forced through by the plunger.
It being necessary that the register gauge for the inside card or tablet shall be
raised out of the way whilst the foil or other covering material is being placed in
position by the travelling sucker, a lever is employed which works through the
plunger lever during the descent of the latter, but is raised out of the way upon
the plunger lever ascending. The regulation of this gauge lever is obtained
through an adjustable fork connection.