Improvements in Plumb-rules, Levels, and Clinometers.
Year: 1896

page_text: Date of Application, 19th Feb., 1896
Date of Application, 19th Feb., 1896
Complete Specification Left, 19th Nov., 1890-Accepted, 9th Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements in Plumb-rules, Levels, and Clinometers.
We FRANK RANDOLPH MULLINGS PHELPS of No. 86 Caroline Street
Birmingham, in the County of Warwick, Manufacturer and PHILIP DAW of
No. 14 Louisa Street Parade Birmingham in the County aforesaid Engineer do
hereby declare the nature of this invention to be as follows:-
This invention relates to an improved level, plumb-rule and clinometer and has
for its object to provide a simple and effective arrangement for determining the
perpendicular of any building or other structural work in place of the plumb-line
as heretofore used for that purpose.
Our invention consists essentially in constructing an instrument for indicating
the perpendicular line by means of a pendulum suspended so as to vibrate at a fixed
point.
Our invention will be particularly useful for bricklayers, masons, carpenters and
engineers for determining the verticality in place of the plumb-bob.
In carrying our invention into practice we provide a parallel strip of wood, iron,
steel, or other suitable metal and cut a plummet-line perpendicularly across its
centre. At a convenient point on the said line we attach a metallic plate having
two projecting lugs or ears, to the centre of the said plate we pivot a metallic
pendulum consisting of a long pointer extending upwards and a short pendulum
rod extending downward which is weighted so as to cause the centre of oscillation
to the pointer the lugs hereinbefore referred to preventing it from oscillating too far
one way or the other.
It will be apparent that the plumb or pendulum level will be readily obtained by
the aforesaid instrument.
Near the end of the pointer we cut a semicircular graduated table thus making
the instrument applicable for diagonal or angular work.
Our said invention may also be applied to what is known as the "pendulum level
used for determining the horizontality of the surface by the verticality of the
plummet line.
Dated this 18th day of February 1896.
WILLIAM HENRY BARACLOUGH,
36, Temple Street, Birmingham, Agent for the Applicants.
DMI ANIM
Improvements in Plumb-rules, Levels, and Clinometers.
We FRANK RANDOLPH MULLINGS PHELPS of No. 86 Caroline Street
Birmingham in the County of Warwick, Manufacturer, and PHILIP DAW of
No. 14 Louisa Street Parade Birmingham in the County aforesaid Engineer, 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 level plumb rule and clinometer and has

page_text: for its object to provide a simple and effective arrangement for determining the
perpendicular of any building or other structural work in place of the plumb-line
as heretofore used for that purpose.
Our invention consists essentially in constructing an instrument for indicating
the perpendicular line by means of a pendulum suspended so as to vibrate at a
fixed point. Our invention will be particularly useful for bricklayers masons,
carpenters and engineers for determining the verticality in place of the
¡plumb-bob.
In carrying our invention into practice we provide a parallel strip of wood, iron,
steel or other suitable metal and cut a plummet-line perpendicularly across its
centre. At a convenient point on the said line we attach a metal plate having two
projecting lugs or ears, to the centre of the said point we pivot a metallic pendulum
rol extending downward which is weighted so as to cause the centre of oscillation
to the pointer, the lugs herein referred to preventing it from oscillating too far
one way or the other. It will be apparent that the plumb or pendulum level will
be readily obtained by the aforesaid instrument. Near the end of the pointer we
cut a semi-circular graduated table thus making the instrument applicable for
diagonal or angular work. Our invention may be applied to what is known as
the "pendulum level," and for determining the horizontality of a service by the
verticality of the plummet-line.
The nature of our invention will be more clearly understood from the
accompanying drawings, the same letters of reference indicating similar parts
throughout.
Figures 1 and 2 represent a front and side elevation of our improved clinometer or
pendulum level. Figure 5 is a modification of Figures 1 and 2. In Figures 1 and 2
A represents a plumb-rule to which is attached the metallic plate B by means of
the screws b. b. having two projecting ears or stops D. D. E represents a pendulum
pivoted to the plate B by means of the pivot F. The pendulum E is balanced by
the weight H which keeps the pointer I. perpendicular with the plumb-line J thus
enabling the exact plumb to be readily obtained, the stops D. D. preventing the
pendulum E from oscillating too far one way or the other. In Figure 5 is shown
a modification of Figures 1 and 2 whereby a graduated table K is attached to the
plumb-rule A to enable the instrument. to be used for diagonal or angular work.
Figures 3 and 4 show our invention applied to a clinometer for determining the
horizontal of a service by means of the pendulum E which is pivoted at F to a
metallic level M and operates in the same manner as that shown at Figures 1, 2
.and 5.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
The improved level plumb rule and clinometer substantially as described and
illustrated in the accompanying drawings and for the purpose set forth.
Dated this 17th day of November 1896.
WILLIAM HENRY BARACLOUGH,
36 Temple Street, Birmingham, Agent for the Applicants.