An Improved Plumber's Shave Hook, also Applicable as a Gauge and as a Marker for Making Washers.
Year: 1899

page_text: Date of Application, 13th Nov., 1899
Complete Specification Left, 10th Aug., 1900-Accepted, 3rd Nov., 1900
PROVISIONAL SPECIFICATION.
An Improved Plumber's Shave Hook, also Applicable as a Gauge and
as a Marker for Making Washers.
I, WILLIAM JOSEPH WAYLAN, of 284, High Street, Sutton, in the County of
Surrey, Plumber, do hereby declare the nature of this invention to be as follows:-
Heretofore in the use of plumbers shave hooks inconvenience is often
experienced in marking and shaving any inaccessible under part or other part
of a lead pipe preparatory to making a wiped joint even when using a looking
glass. Now the object of my invention is to afford absolute accuracy and to
expedite the work. For this purpose I provide the shank or stem of the shave
hook with division lines say in inches and parts of inches and I provide on the
said shank a sliding pointer formed with a blunt point and made to fix by a
thumb screw in any desired position or to any of the aforesaid division lines at
the desired distance from the head or blade of the shave hook which latter with
its flat under side when in use is placed against the end of the lead pipe. The
pointer is of the same radial length as the shave hook. By passing the tool
around the pipe the pointer will form a gauge from which the shaving can be
effected accurately all round. The tool may also be used for marking cisterns
and other articles for soldering; also for marking out lead or leather washers.
Dated this Thirteenth day of November 1800
JENSEN & SON,
77, Chancery Lane, London, W.C.,
Patent Agents.
An Improved Plumber's Shave Hook, also Applicable as a Gauge and
as a Marker for Making Washers.
I, WILLIAM JOSEPH WAYLAN, of 284, High Street, Sutton, in the County of
Surrey, Plumber, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:—
This invention relates to an improved plumber's shave hook which is also
applicable as a gauge and as a marker or cutter for making washers.
Heretofore in the use of plumber's shave hooks of the ordinary construction
considerable inconvenience is often experienced in marking and shaving any
inaccessible under part or other part of a lead pipe preparatory to making a wiped
joint even when using a looking glass therewith and the same remark applies

page_text: also to a certain extent to other constructions which have been suggested. Certain
of these other constructions also have been open to objection on the score that
while being excellent in use in some situations they have been exceedingly
awkward to use or even useless in others.
Now according to this invention I produce a plumber's shave hook which
while applicable to all open and also awkward situations affords absolute accuracy
and expedites work. It is provided with a gauge which is useful for limiting
the stroke of the hook when shaving, say the end of a pipe, which gauge is
further of great utility as a circle cutter or marker and besides this the gauge
is so constructed as to serve as a protector to the point of the shave hook blade
at will and yet is capable of being fixed out of the way when shaving a flat
piece of lead.
Figure 1 of the accompanying drawings is a side elevation of my improved
plumber's shave hook and
Figure 2 is an end elevation thereof.
Figure 3 is a view representing the tool when applied to mark or shave the end
of a pipe and
Figure 4 is an end elevation thereof.
Figure 5 represents in elevation the tool when applied to mark or cut a line
parallel to the edge of a sheet of metal such as lead.
Figure 6 shews the mode of applying the shave hook when used as an inside
gauge for example in measuring the distance for scraping from the edge in the
angle of a leaden cistern during the making of same and
Figure 7 is a view indicating the way the tool is used to mark or cut a
circle.
The same letters of reference refer to like parts in all the figures.
I provide the shank or stem A Figures 1 and 2 with division lines say in
inches and eights of inches as shewn and also if desired divisions according to
other measurements suitable for the various kinds of work most commonly
occurring and further I provide on the said shank a sliding gauge or pointer B
formed with a more or less blunt point and made to fix for example by a thumb
serew C in any desired position or to any of the aforesaid division lines at the
desired distance from the head or blade D of the shave hook and the radial length
of the gauge B is about equal to or slightly greater than the length of the
blade so as to serve as a protector or guard to the point of said blade when clamped
against same, see for instance Figure 2. It is however essential that the gauge
in other directions should be of as small dimensions as possible.
In shaving or scraping the outside of a piece of pipe as shewn in Figures 3
and 4 for instance the gauge B is held up against the end of the pipe E and
the shaving of the pipe is effected by drawing the tool towards and past the
said pipe end. Stroke after stroke is taken until the whole of the end of the
pipe has been scraped and the scraping or shaving will be uniform all round. If
it be merely required to mark the pipe at a certain distance from the end the
gauge B is held up against the pipe end and the tool is moved round the pipe
concentrically therewith, the effect of which will he that the blade D accurately
makes a mark all round. The tool may also be used for marking sheet or other
more or less flat lead as indicated by Figure 5, the gauge B in this case serving as
the marker and the blade being in contact with the edge of the lead F. Figure 6
represents another way of using the tool for either marking with the point of the
gauge B on the side G of say a cistern or the like to be soldered or the blade D
is pressed say against the side H when drawn backwards and forwards to effect
the scraping or shaving thereof. In using the shave hook as a pair of compasses
or as a cutter for cutting circles in lead leather or the like the gauge B is
clamped on the shaft A so that the points of the gauge B and of the blade D
are at the proper distance to agree with the radius of the circle to be made.
The gauge is then held hetween the workman's fingers to hold it steady in the
centre and pressure is also applied to the point of the blade to cause it to mark

page_text: or cut the circle required or the tool may be held by the handle A and the blade
be caused to revolve on the work or the work may be caused to revolve under
the tool all as found most convenient. The dotted circle K represents the mark
or cut which the tool will make.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1
1. A plumber's shave hook consisting of a handle, a shank, a fixed blade at
the end of said shank and an adjustable gauge on said shank the largest radial
dimension of which gauge is about equal to or slightly greater than the radial length
of the point of the blade while the remaining radial dimensions are smaller
than the smallest radial dimension of the blade substantially as set forth.
2. A plumber's shave hook consisting of a handle, a shank marked with divisions
for measurement, a fixed blade at the end of said shank and an adjustable gauge
on said shank, the largest radial dimension of which gauge is about equal to or
slightly greater than the radial length of the point of the blade while the remain-
ing radial dimensions are smaller than the smallest radial dimension of the blade
substantially as set forth.
3. A plumber's shave hook consisting of a handle, a shank, a fixed blade at
the end of said shank and an adjustable pointer or gauge having a body part
capable of sliding on the said shank a tapered part or pointer and means for
clamping said pointer on the shank substantially as described and shewn.
4. A plumber's shave hook consisting of a handle, a round shank, marked
with divisions for measurement, a fixed blade at the end thereof and a pointer
or gauge with a round hole therein to fit loosely on the said shank a flattened
side next to the blade of the tool and a set screw to clamp the said pointer on
the shank substantially as described and shewn.
Dated this Tenth day of Anones
JENSEN & SON,
77, Chancery Lane, London, W.C.,
Patent Agents.