IMPROVEMENTS IN PIPE KEYS
Year: 1883

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PROVISIONAL SPECIFICATION left by the said Joseph Samuel Beeman at
the Office of the Commissioners of Patents on the 25th April 1883.
JOSEPH SAMUEL BEEMAN, of 182 Earls Court Road in the County of Middlesex,
"IMPROVEMENTS IN PIPE KEYS,"
The improvements relate to constructing keys called pipe keys with the pipe or
barrel thereof open at both ends, or the hollow part made continuous throughout-
also to altering existing pipe or barrel keys, when of sufficient length, by cutting
or forming an open channel out of and sloping from the pipe or barrel towards the
ring or handle of the key-the object in either case being to form a passage-way
for the escape of dust or other material which may choke up the barrel of the key
and prevent or hinder its insertion in the lock.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Samuel Beeman in the Great Seal Patent Office on the
24th October 1883.
JOSEPH SAMUEL BEEMAN of 182 Earls Court Road in the county of Middlesex
IMPROVEMENTS IN PIPE KEYS
The object of this invention is certain improvements in pipe keys in order to
prevent the pipe of a key being choked with dirt and fluff when carried in the
pocket or from other causes.
To carry my invention into practice I form the passage way in the barrel or
stem through from end to end either by drilling or otherwise.
With new keys I so make or shape the handle on to the stem that the hole or
passage is of the same diameter throughout but terminating in the "thumb" as
not to interfere with the turning operation.

page_text: With old or existing keys in which the pipe aperture terminates at a distance
from the end where the "wards" are situated. I first cut the stem as to remove
the "thumb" and then drill the hole through to make the passage clear. A thumb
with a hole through its stem portion can then be brazed or welded on so that the
passage of the two portions of the stem correspond or I first sever the stem and
affix a solid stem piece with a thumb attached and drill the hole through.
My invention will be well understood by the annexed drawings.
Figure 1 is a sectional elevation of the key of a door lock with the shank or
.stem A next the handle or "thumb" B of greater width than usual and made to
E is the passage
correspond with the diameter of the stem C next the wards D.
through the stem from end to end as before explained.
Figure 2 represents in sectional elevation a key for a bag, trunk, drawer or other
lock with the pipe passage drilled through from end to end the passage terminating
in the thumb B. Where handles or thumbs are solid or without the "bow" the
passage is continuous
"safe" lock to the
Figure 3 shows in sectional elevation a key of a door or a
stem C of which the handle or thumb end B and stem piece A shown separately
at Figure 4 has been brazed or welded on and with the passage E for the pipe
drilled through, the original depth of the drilling being indicated by the dotted
lines at F.
"
Figure 5 shows one of my improved keys in elevation with the passage in dotted
lines.
I have indicated the through passage as parallel but the passage may be tapered
if desired.
By this invention dirt, fluff, and other refuse is prevented blocking or choking
up the passage and the keys are lighter in weight.
Having now described the nature of my said invention and in what manner the
same is to be performed I declare that I claim.
, זיו
'
The construction of pipe keys with a continuous passage through the stem or
shank as and for the purpose or purposes set forth and as shown in the annexed
drawings.
Secondly I claim Altering existing pipe keys by the attachment of thumbs or
handles and the drilling of a continuous passage through the stem as and
for the purposes described.
"
"
In witness whereof I the said Joseph Samuel Beeman have hereunto set my
hand and seal this twenty fourth day of October in the year of our Lord One
thousand eight hundred and eighty.three.
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