IMPROVEMENTS IN PRODUCING ROTARY MOTION APPLICABLE TO EGG BEATERS, CHURNS, BOTTLE WASHERS, WASHING MACHINES, DRILLS, TOOLS, AND OTHER INSTRUMENTS
Year: 1870

page_text: LETTERS PATENT to William James Schlesinger, of Union Court,
Old Broad Street, in the City of London, for the Invention of
"IMPROVEMENTS IN PRODUCING ROTARY MOTION APPLICABLE TO EGG BEATERS,
CHURNS, BOTTLE WASHERS, WASHING MACHINES, DRILLS, TOOLS, AND OTHER
INSTRUMENTS." -A communication from abroad by M. W. Robinson,
residing in the City and State of New York, United States of
America.
PROVISIONAL SPECIFICATION left by the said William James
Schlesinger at the Office of the Commissioners of Patents, with
his Petition, on the 27th May 1870.
I, WILLIAM JAMES SOHLESINGER, of Union Court, Old Broad Street,
in the City of London, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN PRODUCING ROTARY MOTION APPLICABLE TO EGG BEATERS,
CHURNS, BOTTLE WASHERS, WASHING MACHINES, DRILLS, TOOLS, AND
INSTRUMENTS," a communication to me from abroad by M. W. Robinson,
OTHER

page_text: resident in the City and State of New York, United States of America,
to be as follows:-
This Invention relates to certain improvements in the means of
producing an alternate or reciprocating rotary motion applicable to egg
beaters or other apparatus for beating or whipping substances or liquids;
such motion being also applicable to churns, bottle washers, washing
machines, drills, tools, and other instruments where such motion may be
required.
As an example, in relation to an egg beater, I propose to apply or fix
to the end of the turning spindle a worm or archimedean screw which is
inserted in a hollow handle containing a helical spring, at the lower end
of which a cap or socket is fixed, in which the end of the screw fits
and turns. The screw also passes through a female screw nut soldered
within the handle, consequently when the point or end of the beater is
rested on a bearing surface, and pressure is applied to the handle, the
worm or screw ascends within the handle, at the same time giving
the spindle and beater a rotary motion; but on gradually releasing or
withdrawing the pressure from the handle the helical spring presses on
the screw forcing it down, and at the same time giving the spindle a
reciprocating or alternate rotary motion by the action of the screw
unwinding or reversing itself. These motions can also be caused by
reversing the positions of the screw and spring, in which case the point
of the bearing spindle on which pressure was in the first instance made
is fixed in a collar or swivel, the handle being then pulled upwards by
hand, and being drawn down by the reverse action of the screw and
spring, of course the spring is to be placed at the lower portion of the
handle, the screw being uppermost. Either of these arrangements may
be applied in order to effect the required rotary motions to the turning
stem or spindle whether for working egg beaters, churns, drills, or other
instruments or apparatus, but in both motions a stop is arranged in
relation to the vertical or sliding play of the spindle in order to prevent
an undue stress being given to the spring, such stop being contained
on the spindle within the hollow handle and acting on the screw
socket.
By these improvements the various instruments to be operated can
be worked with one hand without the necessity of being permanently
fixed to a vessel or stand as in the case of the application of multiplying
bevil toothed wheel gearing.

page_text: The application of the helical spring to the screw on the spindle in
combination with the socket and stop within the hollow handle
constitute the main features of the Invention.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William James Schlesinger in the Great Seal
Patent Office on the 26th November 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
JAMES SCHLESINGER, of Union Court, Old Broad Strect, in the City of
London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of May, in the
year of our Lord One thousand eight hundred and seventy, in the
thirty-third year of Her reign, did, for Herself, Her heirs and succes-
sors, give and grant unto me, the said William James Schlesinger,
Her special licence that I, the said William James Schlesinger, my
executors, administrators, and assigns, or such others as I, the said
William James Schlesinger, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time
and at all times thereafter, during the term therein expressed, should
and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN PRODUCING ROTARY MOTION
APPLICABLE TO EGG BEATERS, CHURNS, BOTTLE WASHERS, WASHING MACHINES,
DRILLS, TOOLS, AND OTHER INSTRUMENTS," a communication to me from abroad
by M. W. Robinson, resident in the City and State of New York, United
States of America, upon the condition (amongst others) that I, the said
William James Schlesinger, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same
to be filed in the Great Seal Patent Office, within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William James Schlesinger, do
hereby declare the nature of my said Invention, and in what manner

page_text: the same is to be performed, to be particularly described and ascertained
in and by the following statement.
This Invention relates to certain improvements in the means of
producing an alternate or reciprocating rotary motion applicable to egg
beaters or other apparatus for beating or whipping substances or liquids,
such motion being also applicable to churns, bottle washers, washing
machines, drills, tools, and other instruments, where such motion may
be required.
As an example, in relation to an egg beater, I apply or fix to the end
of a turning spindle a worm or archimidean scrow, which is inserted
in a hollow handle containing a helical spring, at the lower end of which
a cap or socket is fixed in which the end of the scrow fits and turns.
The screw also passes through a female screw nut soldered within the
handle, consequently when the point or end of the beater is rested on a
bearing surface, and pressure is applied to the handle, the worm or
screw ascends within the handle, at the same time giving the spindle and
beater a rotary motion, but on gradually releasing or withdrawing the
pressure from the handle the helical spring presses on the screw forcing
it down, and at the same time giving the spindle a reciprocating or
alternate rotary motion by the action of the screw unwinding or
reversing itself. These motions can also be caused by reversing the
positions of the screw and spring, in which case the point of the bearing
spindle on which pressure was in the first instance made is fixed in
a collar or swivel, the handle being then pulled upwards by hand and
being drawn down by the reverse action of the screw and spring, of
course the spring is to be placed at the lower portion of the handle, the
screw being uppermost. Either of these arrangements may be applied
in order to effect the required rotary motions to the turning stem or
spindle, whether for working egg beaters, churns, drills, or other
instruments or apparatus, but in both motions a stop is arranged in
relation to the vertical or sliding play of the spindle, in order to prevent
an undue stress being given to the spring, such stop being contained
on the spindle within the hollow handle, and acting on the screw
socket.
T
By these improvements the various instruments to be operated can
be worked with one hand without the necessity of being permanently
fixed to a vessel or stand as in the case of the application of multiplying

page_text: The application of the helical spring to the screw on the spindle in
combination with the socket and stop within the hollow handle
constitute the main features of the Invention.
Fig. 1 of the Drawings shews a section of the egg beater, and Fig. 2
an elevation of the drill.
a represents the tubular handle in which the helical spring b is
contained; c is the cap on which the spring exerts its power, and
within which the screw d of the stem e is free to turn; f is the fixed
socket soldered within the tube, it contains a female thread, and,
consequently, the rise and fall of the screw of the stem or spindle in
such thread results in a reciprocating and rotary motion which is
communicated to the egg beater g, or to the drill h, or to any other
article required, as before described.
I claim the method of effecting or producing rotary motion applicable
to egg beaters, churns, drills, tools, and other instruments by the
combined action of a helical spring within a hollow handle and by a
screw attached to a stem or spindle rising and falling through a fixed
female thread, substantially as hercin specified and shewn.
In witness whereof, I, the said William James Schlesinger, have
hereunto set my hand and seal, this Twenty-ninth day of October
in the year of our Lord One thousand eight hundred and
seventy.
WILLIAM JAMES SCHLESINGER. (L.S.)
Witness,
ALEX. PRINce,
Office for Patents,
4, Trafalgar Square,
Charing Cross.