IMPROVEMENTS IN KNIFE CLEANING MACHINES PART IMPROVEMENTS ARE APPLICABLE TO WRINGING AND MANGLING MACHINES
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by Edward Martin Knight at the Office.
of the Commissioners of Patents on the 14th December 1881.
EDWARD MARTIN KNIGHT of Manchester in the County of Lancaster Machinery
Agent. "IMPROVEMENTS IN KNIFE CLEANING MACHINES PART
IMPROVEMENTS ARE APPLICABLE TO WRINGING AND MANGLING MACHINES."
i
OF
WHICH
This Invention relates to and comprises improvements whereby the cost of
machines for knife cleaning is greatly reduced and whereby the machine is rendered
more effective, to improved bearings for the shafts or axles of the rollers and to an
improved trough or apparatus for containing the emery employed in cleaning the
knives and to improved apparatus employed in the driving or rotation of the
cleaning rollers and brushes.
In the construction of one class of knife cleaning machine I employ but one
end or side frame forming a clamp and carrying the requisite gear for imparting
rotation to the cleaning rollers, the latter consisting of tube or other india rubber
fitted upon the extended axles or shafts of the gear, this machine is secured to a
table or stand by the clamp.
Another class of machine consists of a board and emery trough in which the
lower roller revolves, the upper roller is mounted over the lower one, the knife is
passed to and fro between the rollers and thereby imparts rotation thereto without
the aid of gear.
Another construction of machines comprises end frames of combined metal and
wood the ends being connected by cross stays, the whole together with a lid
forming a box encloses the machine when not in use.
In some cases I reduce the diameter of the top or the bottom roller or of both
for a portion of its or their length, the lesser diameter serves as a cleaner of the
shoulder of the blade the back of the knife being polished against the end of the
larger diameter of the roller.
In connection with the cleaning rollers is a brush or brushes (circular) and
employed for the purpose of cleaning between the prongs of forks and moulded or
ornamental parts of the shoulder of knife blades spoons and the like, also an emery
roller or disc for sharpening the knives.

page_text: The gearing for driving the machines consists of the necessary pinion wheels on
the axis of the rollers these being coupled and driven by means of an internal
gear wheel, the outer rim of which is grooved or flanged and is the driving wheel
for hand or so as to receive a cord or driving strap connected to a treaddle motion.
The emery or polishing powder trough mount in slides and face or cover its
outer edge with india rubber so as to prevent the blade striking against the metal
edge of the trough when the blade is being withdrawn from the cleaning
rollers.
The bearings of the axles of machines for purposes aforesaid I so construct
that the upper one rests upon the lower bearing when the rollers are properly
adjusted for use as I find that in knife cleaning machines the elasticity of the
india rubber rollers permits sufficient play without the use of adjusting screws or
springs and that in wringing and mangling machines bearings so made prevent
undue strain being put upon the axles of the rollers by the adjusting screws or
weights.