IMPROVEMENTS IN ENGLISH STANDARD WEIGHTS
Year: 1885

page_text: I WILLIAM PARNALL of 108 Victoria Street in the City and County of Bristol,
Scale Maker, do hereby declare the nature of my invention for IMPROVEMENTS IN
ENGLISH STANDARD WEIGHTS to be as follows:-
To construct standard Weights without sharp edges, (save and except those
caused by the denomination or words, figures, stamping marks and the like) with a
large space on the top, and so designed that the height of said weights in all cases
shall be one third greater, than their largest diameter.

page_text: •
I WILLIAM PARNALL of 108 Victoria Street in the City and County of Bristol
Scale Maker do hereby declare the nature of my invention for IMPROVEMENTS IN
ENGLISH STANDARD WEIGHTS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:—
My Invention relates to Improvements in English Standard Weights, its object
being to provide weights which may be easily adjusted and cleaned, said weights
being provided on top with a large surface upon which the denomination may be
clearly marked and so designed that in all cases the height shall be at least one.
third greater than the largest diameter..
And in order that this my invention may be more readily understood and
carried into practical effect, I have hereunto appended a sheet of drawings having
the various figures thereon marked with similar letters to denote similar parts and
reference being hereafter had thereto.
Fig. 1. represents one of my improved solid metal weights in section. The top a.
I prefer flat so that one weight may stand upon another the bottom b. b. being flat
also for this purpose. A cavity or recess c. is provided to receive molten lead or
the like, so that the weight may be adjusted, said cavity or recess is made wedge
shape as in the drawing so that lead or the like cannot drop out whilst in use. The
sides of the said cavity may be parallel, jagged, and roughed, or grooved and
'the like.
d. d. are recesses provided so that in lifting the said weights the operators
'fingers will the more firmly grip the tops of these weights. The bottom b. b. is
recessed so that the rounded corners or edge e. e. is the part which comes in contact
with the ground or table and the like.
Fig. 2 represents one of my improved weights which may be cast of any metal
and afterwards filled with lead or the like. An air hole is provided in the
bottom a. The cavity c may be used for adjusting as in fig. 1. A lifting bar is
provided at d. The circle fig. 3. with 56 pounds printed upon it is a plan of the
top of the weight fig. 2. These letters and numbers may be recessed and painted
or japanned or enamelled.
Fig. 4 represents one of my Improved Weights in section. This weight may be
cast in metal and afterwards filled (through the aperture a.) with lead or the like,
said aperture is closed by a plug of metal which may be driven into it and then
soldered, brazed or secured in any ordinary way. The sides of aperture a may be
jagged, grooved or roughed or the like. The cavity c may be used for adjusting
as in Fig. 1. The bottom of this weight is not recessed as Figs. 1. and 2. but on
the contrary is rounded,
Fig. 5. is a representation of one of my Improved Weights in elevation.
Figs. 1-4. 5 may be impressed with the denomination of said weights and then
painted, japanned, enamelled or the like. When the top of said weights is polished
the recessed parts appear more distinct.

page_text: Fig. 7 represents one of my Improved Weights in section. This form of weight
I have invented to be made of glass, china or other ware or the like. The cavity c
may be filled with lead or the like the lower part of the cavity nearest the base
being a convenient place to receive upon the lead or the like, the Inspector's stamp
or verification.
All these weights I have designed specially without sharp edges, so that they
may be more easily cleaned. I have also constructed each weight so that it may
occupy a small floor or counter space. At the same time the weights provide a
large surface on the top upon which the denomination may be boldly exposed.
I do not confine myself to the special shapes as in the drawings.
I wish it to be understood that I do not claim as my invention metal weights
with recessed bottoms and lead plugs-neither do I claim metal weights filled with
lead; or china weights partly filled with lead, as these are old and now in use.
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. A Standard English Metal Weight without sharp. edges or corners, whose
height is one third greater than its largest diameter and provided with a flat top.
as Figs. 5 and 6 substantially as herein before set forth and described.
2. A Standard English Solid Metal Weight without sharp edges or corners
(except those caused by the circular or other lines, numbers, and figures on the top
of the weights as Figs. 3 and 6) but provided with a cavity c Figs. 1. 2. and 3. and
a recess or cavity d. d. fig. 1. substantially as herein before set forth and specified.
3. A Standard English Metal Weight cast hollow with an air hole a. Fig. 2. and
bar d fig. 2 and hole a. fig. 4. bottoms d. d. and c. fig. 4. all substantially as herein-
before set forth and described.
4. A Standard Glass, China, Ware or other English weight, with rounded corners
and cavity c Fig. 7. whose height is at least one third greater than its largest
diameter, substantially as hereinbefore set forth and specified.
5. The combination and arrangement of English Standard Metal, Glass China
and other weights with cavity c, bottom 6 6 rounded corners e e, tops a. bar d. air
hole a, aperture a. rounded bottoms d. d. and tops figs. 3. and 6. all substantially as
herein before described and set forth and illustrated on the accompanying sheet of
drawings.
Dated this 21st day of Sentember 1888