A Combination Spade, Pick, or Adze, Saw and Chopper, with Locking and Unlocking Apparatus for the Folding or Unfolding of the same.
Year: 1893

page_text: Date of Application, 13th Mar., 1893
Complete Specification Left, 13th Dec., 1893-Accepted, 27th Jan., 1894
PROVISIONAL SPECIFICATION.
A Combination Spade, Pick, or Adze, Saw and Chopper, with Locking
and Unlocking Apparatus for the Folding or Unfolding of the
same.
STEPHEN TUDDENHAM, No. 208, Lambeth Road, London, S.E., General Smith
and Art Metal Worker, and HENRY WATSON, No. 37, Leader Street, Chelsea,
London, S.W., General Smith, do hereby declare the nature of this invention to be
as follows:-
At the end of, either wooden handle fitted into double socket, or metal handle,
are joints for folding and unfolding spade and pick. The pick works on a pin
connected to spade and with an oscillating dovetail to lock into corresponding dove-
tail in joint. The spade works on hollow shaft with flange at one end and washer
at other end, to check the movement of lock, with tightening screw running through
washer and inside hollow shaft, to secure joint firmly. At the flange end of hollow
shaft a revolving countersunk plate to cover flange, with two dovetails in rim of
revolving plate to work corresponding dovetail in joint, to throw spade or pick in
or out of position. The locking is regulated by quadrantal movement of the
revolving countersunk plate. The perfect_security of the locking apparatus is
acquired by a lever with two jam screws. The saw and chopper being on edges of
spade. Pick-shield on handle. Also tightening screw through dovetail movement,
for security and compactness when folded.
Dated this 13th day of March 1893.
a
STEPHEN TUDDENHAM.
HENRY WATSON.
A Combination Spade, Pick, or Adze, Saw and Chopper, with Locking
and Unlocking Apparatus for the Folding or Unfolding of the
same.
We, STEPHEN TUDDENHAM, No. 208 Lambeth Road London, S.E. General
Smith and Art Metal Worker, and HENRY WATSON, No. 37 Leader Street,
Chelsea, London, S.W. General Smith, 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 :-
At the end of either a wooden handle fitted into double socket, or metal handle,
are joints for folding and unfolding spade and pick.
The pick works on a pin connected to spade, and with an oscillating dovetail to
lock into corresponding dovetail in joint. The spade works on hollow shaft with
flange at one end, and washer at other end to check the movement of lock, with
tightening screw running through washer and inside hollow shaft to secure joint
firmly. At the flange end of hollow shaft is a revolving countersunk plate to cover
the flange, with two dovetails in rim of revolving plate to work corresponding dove-
tail in joint to throw spade, or pick in, or out of position. The locking is regulated
The perfect
by a quadrantal movement of the revolving countersunk plate.
security of the locking apparatus is acquired by a lever with two jam screws; the
saw and chopper being on edges of spade. Pick-shield on handle, also tightening
screw through dovetail movement, for security, and compactness when folded.
17

page_text: Our invention will be clearly understood by the detail and the assembled drawings
annexed hereto.
Figures 1 and 2 show the handle.
Figure 3 detached view of revolving or quadrantal plate.
Figure 4 section of joint with spade, saw, and chopper in one piece.
Figure 5 spade and pick with head partly in section.
Figure 6 side elevation of implement when for use as a spade, saw, or chopper.
Figures 7 and 8 side view and plan of the implement for use as a pick and a hoe,
or scraper.
Figures 9 and 10 views of the implement with the pick and spade folded and
locked in their respective positions close to the handle, such as when ready to be
carried, or be stored to occupy little space.
The implement herein before described and as shown is specially applicable for
miners, squatters, and other colonists, or prospectors, also for military, and like
forces, inasmuch, it can be packed in a sheath, and be carried on the back, or on
the hips of a soldier without materially interfering with his actions on a march, or
as a scout, or sentry on outpost duty, it, spade or pick, being readily put into
condition for work to enable a soldier to obtain shelter by throwing up a mound of
earth, or by digging the pick into the ground, the spade serving to protect the man
while in a prone position.
According to Figures 1 and 2, A is the handle of wood, or metal. B, B, forked
plates constituting head of same. C, D, dovetail slots in two edges thereof.
E guide pin. F cheek pin. G pick, or adze guard. H band guard. I notch
in central hole J in one side plate only. K, Figure 3, countersunk plate with
quadrantal recess L in one face, and with dovetail notches M, N, on opposite
edges. P, see section Figure 4, hollow shaft. Q stud screwed in one end.
R crank of screw Q with trigger S. T screw pin in crank R. U, flange. V tightening
bolt screwing into hollow shaft P.
W, Figure 5, plate on head of spade X with dovetail notch Y, and small
countersunk recess Z. a dovetail pin in stem of pick or adze c. d set screw in
dovetail pin a, e joint stud of pick c. hole in spade X for guard H to pass
through, and the engagement of the oscillatory pin a when the spade is folded.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :--
1. The combination tool shown on the annexed drawings, comprising a pick, and
a spade having a saw and chopper edges, the spade being foldable to the handle,
and the pick to the spade for locking by an oscillatory dovetail stud and screw pin,
said dovetail stul and screw pin serving also to lock the spade and the pick in an
open, or working position, all as set forth.
2. In a foldable combination tool of the kind described and shown, the dovetail
notch Y, countersunk hole Z in joint of spade head and the notches C, D, in joint of
handle head for the reception of the oscillatory dovetail stud a, and pin d for
locking the parts for use as a pick, adze, or a spade, as described.
The 13th day of December 1893.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Stephen Tuddenham and Henry Watson.