Improvements in certain of the Appliances known as Adjustable "Tap Wrenches" and "Lathe Carriers" or "Drivers."
Year: 1891

page_text: Date of Application, 13th Nov., 1891
Complete Specification Left, 15th Aug., 1892-Accepted, 24th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in certain of the Appliances known as Adjustable
"Tap Wrenches" and "Lathe Carriers" or "Drivers."
66
I, JOHN EDMUND LEESON of Chapel Street, Levenshulme, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
"
or
My invention relates to such of the appliances known as adjustable "tap
wrenches" and "lathe carriers" or "drivers as are formed in two parts connected
and secured together by screws or bolts by means of which the adjustments needed
in use are made and my invention consists in devices by means of which the strains
to which in adjustable "tap wrenches" and "lathe carriers
"drivers" as
hitherto constructed the screws or bolts employed to connect and secure together
the two portions of each of such tap wrenches or lathe carriers or drivers are
subjected to the injury of such screws or bolts, are prevented entirely or in great
part from acting upon the screws or bolts employed. My invention by preventing
the screws or bolts employed in adjustable tap wrenches and lathe carriers or
"drivers" from being subjected to strains prevents them from becoming strained
or bent or otherwise injured as frequently happens in adjustable tap wrenches and
lathe-carriers or drivers as hitherto constructed.
According to my invention I provide or form upon each of the parts or jaws of
which each tap wrench or lathe carrier or driver is formed, a projecting part or
projecting parts passing into and made to fit an opening or recess formed in the
other of such parts or jaws or a shoulder or shoulders acting in conjunction with a
shoulder upon or in conjunction with the end or any other suitable part of or upon
the other of such parts or jaws. The projecting parts or shoulders aforesaid act as
supports and bear all or a great part of the strain which in their absence would be
borne by the screws or bolts employed to connect and secure together the jaws or
parts of the tap wrench or lathe carrier or driver whether such jaws or parts be in
contact with each other or be separated from each other to any extent not
exceeding that necessary when the tap wrench or lathe carrier or driver is being
employed in conjunction with the largest article with which it is intended to be
used. The screws or bolts by means of which the jaws or parts of each tap wrench
or lathe carrier or driver are connected and secured together are preferably passed
through the jaws or parts of such tap wrench or lathe carrier or driver in such
position that they are prevented by one or more of the parts or shoulders aforesaid
from being turned but such screws or bolts may each be screwed into or passed
through one or more of the projecting parts or shoulders aforesaid or may be
caused to connect and secure together the jaws or parts above mentioned in any
other suitable manner. By the projecting part or projecting parts or shoulder or
shoulders upon each of the jaws or parts of the tap wrench or lathe carrier or
driver being made of suitable length I am enabled to arrange that when the nut
employed in conjunction with each of the screws or bolts aforesaid ceases to be
fully screwed upon the screw or bolt upon which it is screwed when in use the said
screw or bolt will be capable of being turned if the said nut be turned and thus
prevent the tap wrench or lathe carrier or driver from being used in conjunction
with articles larger than those with which it is intended to be used.
Dated this Twelfth day of November 1891.
HOWARD
CHEETHAM,
Manchester, Agent to the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in certain of the Appliances known as Adjustable
Tap Wrenches and "Lathe Carriers or Drivers."
66
"
"
66
I, JOHN EDMUND LEESON, of Irlam in the County of Lancaster, formerly of
Chapel Street, Levenshulme, in the County of Lancaster, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
"
"
or
My invention relates to such of the appliances known as adjustable "tap
wrenches" and "lathe carriers" or " drivers as consist in two parts connected
and secured together by screws or bolts by means of which the adjustments needed
in use are made and my invention consists in devices by means of which some of
the strains to which in adjustable "tap wrenches and "lathe carriers"
❝ drivers
as hitherto constructed, the screws or bolts employed to connect and
secure together the two portions of each of such " tap-wrenches or "lathe-
carriers" or "drivers
are subjected, to the injury of such screws or bolts by
bending, are prevented entirely or in great part from acting upon the screws or
bolts employed. My invention by preventing the screws or bolts employed in
adjustable "tap-wrenches" and "lathe-carriers" or "drivers" from being subjected
to certain strains prevents them from becoming strained or bent as frequently
happens in adjustable "tap-wrenches " and "lathe-carriers i or "drivers "
hitherto constructed.
66
"
"
66
"
"
"
"
or
"
as
"
According to my invention I provide or form upon each of the parts or jaws of
which each "tap-wrench or "lathe-carrier " or "driver is formed, a projecting
part or projecting parts passing into and made to fit an opening or recess formed in
the other of such parts or jaws. The projecting parts aforesaid act as supports,
and bear all or a great part of the strains in the direction of the length of the jaws
or parts aforesaid which in their absence would be borne by the screws or bolts
employed to connect and secure together the jaws or parts of the "tap-wrench
or "lathe-carrier or "driver" whether such jaws or parts be in contact with
each other or be separated from each other to any extent not exceeding that
necessary when the tap-wrench or "lathe-carrier "driver" is being
employed in conjunction with the largest article with which it is intended to
be used. The screws or bolts by means of which the jaws or parts of each
tap-wrench" or "lathe-carrier or "driver" are connected and secured together
are preferably passed through the jaws or parts of such "tap-wrench
"lathe-carrier " or "driver" in such position that they are prevented by one or
more of the projecting parts aforesaid from being turned but such screws or
bolts may each be screwed into or passed through one or more of the projecting
parts aforesaid or may be caused to connect and secure together the jaws or parts
above mentioned in any other suitable manner. By the projecting part or pro-
jecting parts upon each of the jaws or parts of the "tap-wrench
carrier or "driver"
being made of suitable length I am enabled to arrange
that when the nut employed in conjunction with each of the screws or bolts
aforesaid, ceases to be fully screwed upon the screw or bolt upon which it is
screwed when in use the said screw or bolt will be capable of being turned if the
said nut be turned and thus prevent the "tap-wrench or "lathe-carrier" or
"driver" from being used in conjunction with articles larger than those with which
it is intended to be used.
"
In the accompanying drawing
"
or
or "lathe-
Fig. 1 is a plan partly in section, and Fig. 2 a side view illustrating an adjustable
tap-wrench constructed according to my invention.
1
31nted in Di
1

page_text: "
are
and 2. Each of the jaws or parts (a), (b) is provided with projecting parts (c)
which pass into and are made to fit an opening or recess formed in the other of
such jaws or parts (a) (b). Each of the bolts (d) by which the jaws or
parts (a), (b) of the tap-wrench are connected and secured together is provided
with a head (d) which is provided with notches which embrace the projecting
parts (c) between which the said bolt (d) is placed and thus prevent such bolt
from being turned when the nut (e) with which it is provided is turned. The
projecting parts (c) on each of the jaws or parts (a), (b) of the "tap-wrench
made to fit the opening or recess into which they pass so closely that the jaws or
parts (a), (b) are prevented from moving longitudinally in relation to each other
to such an extent as would allow any strain which may be applied to the
handles (a), (b) of the tap-wrench in order to turn it either in the direction
indicated by the arrows (A), (A), or in the opposite direction to be transmitted
to the bolts (d) so as to injure them, the bolts (d) being somewhat smaller in
diameter than the holes in the jaws or parts (a), (b) through which they pass.
The projecting parts (c) are made of such length that when the jaws or
parts (a), (b) are separated to a greater extent than is necessary for the insertion
between them of the largest taps for use with which the tap-wrench is intended
such projecting parts (c) will cease to project through the openings or recesses
into which they are fitted and cease to prevent the bolts (d) from being turned.
along with the nuts (e) with which they are provided and thus the employment of
the "tap-wrench in conjunction with taps larger than those with which it is
intended to be used is rendered somewhat inconvenient and thus the straining or
injury of the "tap wrench" is rendered more improbable.
"
Figs. 3 and 4 of the accompanying drawing illustrate an adjustable "lathe-
carrier or "driver" constructed according to my invention, Fig. 3 being a plan
partly in section and Fig. 4 a side elevation. Each of the jaws or parts (a), (b) of
the driver or carrier illustrated in Figs. 3 and 4 is provided with projecting
parts (c) which pass into and are made to fit an opening or recess formed in the
other of such jaws or parts (a) (b). Each of the bolts (d) by which the jaws or
parts (a), (b) of the "lathe-carrier" or "driver" are connected and secured
together is provided with a head (d) which is provided with notches which
embrace the projecting parts (c) between which the said bolt (d) is placed and
thus prevent such bolt from being turned when the nut (e) with which it is
provided is turned. The projecting parts (c) on each of the jaws or parts (a), (b)
of the lathe-carrier or driver are made to fit the opening or recess into which they
pass, so closely that the jaws or parts (a), (b) are prevented from moving
longitudinally in relation to each other to such an extent as would allow any strain
which may be applied to the projections (a¹), (b) of the lathe-carrier or driver
in order that such lathe-carrier or driver may be turned in the direction indicated
by the arrows (B) (B) or in the opposite direction, to be transmitted to the
bolts (d) so as to bend them, the bolts (d) being somewhat smaller in diameter
than the holes through which they pass. The projecting parts (c) are made or
such length that when the jaws (a), (b) are separated to a greater extent than is
necessary for the insertion between them of the largest articles for use with which
the "lathe-carrier" or "driver" is intended such projecting parts (c) will cease to
project through the openings or recesses into which they are fitted and cease to
prevent the bolts (d) from being turned along with the nuts (e) with which they
are provided and thus the employment of the lathe-carrier or driver with articles
of larger diameter than those with which it is intended to be used is rendered
somewhat inconvenient and thus the straining or injury of the "lathe-carrier
or "driver" and the bolts (d) with which it is provided is rendered more
improbable.
"
""
My invention by preventing the two jaws or parts of an adjustable "tap-wrench
or "lathe-carrier or "driver" from being moved longitudinally in regard to each
other whatever may be the direction in which the force applied to turn such tap-
wrench or lathe-carrier or driver may be applied prevents the bolts or screws by

page_text: which the jaws or parts of the tap-wrench or lathe-carrier or driver are connected
and secured together from being bent while such tap-wrench or lathe-carrier or
driver is in use.
It is obvious that instead of two projecting parts such as are shown in the
accompanying drawing being formed on each jaw or part of an adjustable tap-
wrench or lathe-carrier or driver constructed according to my invention each jaw
or part may be formed with only one projecting part passing into and fitting an
opening or recess formed in the other jaw or part of such "tap-wrench" or "lathe-
carrier" or "driver" and that one jaw or part of an adjustable tap-wrench or
lathe-carrier or driver constructed according to my invention may be provided
with two projecting parts passing and fitting into two corresponding recesses or
openings formed in the other jaw or part of such tap-wrench or lathe-carrier or
driver and also that the recess or opening or recesses or openings formed in one
or other of the jaws or parts of an adjustable tap wrench or lathe-carrier or driver to
receive a projecting part or projecting parts provided upon the other jaw or part
thereof may instead of being formed through the substance of the jaw or part in
which it is or they are formed, be made in the form of a recess or recesses formed
in one or both of the sides or faces of the said jaw or part or may be made in the
form of a recess or recesses formed between projecting parts formed on one or
both of the sides or faces of the said jaw or part and also that instead of the
projecting parts provided in accordance with my invention being formed upon the
Jaws or parts of the tap-wrenches or "lathe-carriers or "drivers" constructed
according to my invention I may employ pins or studs of suitable shape and size
secured in the jaws or parts of tap wrenches or lathe-carriers or drivers to be
provided with projecting parts and passing into and fitting into corresponding
openings or recesses formed in the jaws or parts to be used with such jaws or
parts.
"
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In an adjustable tap wrench formed of two jaws or parts connected and
secured together by screws or bolts by means of which the adjustments needed in
use are made, projecting parts such as (c), arranged and employed substantially as
herein before described for the purpose of preventing the jaws or parts of the "tap
wrench from being moved longitudinally in relation to each other by force
applied to turn the "tap wrench" in either direction and preventing the force
applied to turn the "tap wrench " in either direction from bending the screws or
bolts by which the said jaws or parts are connected and secured together.
"
"
2. In an adjustable "lathe-carrier" or "driver" formed of two jaws or parts
connected and secured together by screws or bolts by means of which the adjust-
ments needed in use are made, projecting parts such as (c) arranged and employed
substantially as hereinbefore described for the purpose of preventing the jaws or
parts of the " lathe-carrier
"
"driver
Ol'
from being moved longitudinally in
relation to cach other by force applied to turn such "lathe-carrier
or "driver"
in either direction and preventing the force applied to turn the "lathe-carrier" or
"driver" in either direction from bending the screws or bolts by which the said
jaws or parts are connected and secured together.
وو
3. In an adjustable "tap wrench formed of two jaws or parts connected and
secured together by means of screws or bolts provided with nuts by means of
which the adjustments needed in use are made, and provided with means by which
the said screws or bolts are prevented from turning with the nuts with which they
are provided, the hereinbefore described method of rendering inconvenient the use
of the "tap-wrench" with taps larger in diameter than those for use with which it
is intended which consists in so arranging the means by which the rotation of the
screws or bolts employed to connect and secure together the jaws or parts of the
"tap-wrench" is prevented that such means no longer prevent the rotation of

page_text: "
"tap wrench are separated
the said screws or bolts when the jaws or parts of the "
more widely than they are intended to be while in use.
4. In an adjustable "lathe-carrier" or "driver" formed of two jaws or parts
connected and secured together by screws or bolts provided with nuts by means of
which the adjustments needed in use are made, and provided with means by which
the said screws are prevented from turning with the nuts with which they are
provided, the hereinbefore described method of rendering inconvenient the use of
the "lathe-carrier" or "driver" with articles larger in diameter than those for use
with which it is intended which consists in so arranging the means by which the
rotation of the screws or bolts employed to connect and secure together the jaws or
parts of the "lathe-carrier or "driver is prevented that such means no longer
prevent the rotation of the said screws or bolts when the jaws or parts of the
lathe-carrier" or "driver" are separated more widely than they are intended to
be while in use.
"
"
5. In an adjustable "tap-wrench formed of two jaws or parts connected and
secured together by means of screws or bolts by means of which the adjustments
needed in use are made, projecting parts such as (c) and nuts (e) arranged and
employed substantially as herein before described, for the purposes of preventing
the jaws or parts of the "tap-wrench" from being moved longitudinally in relation
to each other by force applied to turn such "tap-wrench" in either direction and
preventing the force applied to turn the "tap-wrench" in either direction from
bending the screws or bolts by which the said jaws or parts are connected together
and rendering inconvenient the use of the "tap wrench with taps larger in
diameter than those for use with which it is intended.
6. In an adjustable "lathe-carrier" or "driver" formed of two jaws or parts
connected and secured together by means of screws or bolts by means of which
the adjustments needed in use are made, projecting parts such as (c) and nuts (e)
arranged and employed substantially as herein before described for the purposes of
preventing the jaws or parts of the "lathe-carrier' or "driver " from being
moved longitudinally in relation to each other by force applied to turn such "lathe-
carrier" or "driver" in either direction and preventing the force applied to turn
the "lathe-carrier" or "driver" in either direction from bending the screws or
bolts by which the said jaws or parts are connected together and rendering
inconvenient the use of the "lathe-carrier " or "driver" with articles larger in
diameter than those for use with which it is intended.
Dated this Thirteenth day of August 1892.
HOWARD
CHEETHAM,
Manchester, Agent to the Applicant.