Year: 1893

page_text: 1 REGINALD HADDAN, of the Firm of Herbert Haddan and Co. of 18
Buckingham Street, Strand, W.C. London, Patent Agent do hereby declare the
nature of this invention, a communication to me from abroad by Adam Böcher, of
New York, in the United States of America, Manufacturer 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 a darning implement and the object of the invention is
to increase the reliability and ease of operation of the device and to this end the
invention consists in the novel features of construction set forth in the following
Specification and claims and illustrated in the annexed drawing in which,
Figure 1 shows a side elevation of the implement sectioned along x x Fig. 2.
Figure 2 is a section along y y Figure 1.
Figure 3 is a plan view of Figure 1.
Figure 4 is a section similar to Figure 1 with parts in a different position.
Figure 5 is a front elevation of Figure 4.
Figure 6 is a detail view of a hook set.
Figure 7 is a detail view of a modification.
The material D having the rent or hole to he darned is stretched over a frame or
support C and is confined thereupon through the medium of a spring clamp composed
of an elastic strip of metal or wire bent to form a pair of parallel arms E' which
grip opposite sides of the support C. The arms E₁ are bent to provide a pair of
supporting arms E' having their extremities formed into curved portions to provide
lugs or projections E³. The arms E' slid over or onto the support or base C hold
the material in place.
To the lugs or projections E³ is fulcrumed at E', E' an oscillatory lever frame
composed of bell crank levers E' E. The arms E* E* of the levers are joined by
a rod or bar E' carrying a handle or finger button Es by which the lever frame can
be swung to either of the positions shown in Fig. 1 and Fig. 4.
The arms Es E³ carry a head composed of two discs or plates A secured to a
pivot or shaft X journalled in the arms E. The hooks a a' are extended from or
formed on plates a² as which are adapted to reciprocate in parallel planes and at
their lower ends are bent about or joined to the pivots QQ on the discs or plates A.
The pivots Qwith the discs or plates A can be oscillated by handle R swinging on
pivot X and engaging the pivots Q and as the discs or plates are oscillated the
pivots Qlikewise oscillate and each hook set a or a' alternately rise above and drop
below the other hook set. This oscillation of the hook sets a a¹ produces a shedding
motion in the thread I so that part of said thread first forms an upper shed and
another part a lower shed and on shifting the hooks a a¹ the part of thread I which
before formed an upper shed now forms a lower shed and the thread parts which
formed the lower shed now form an upper shed.
The thread portions I are given this shedding motion to enable a needle and
thread to be run between the sheds like the weft in a loom so as to form a web
which will close the rent or hole. While the shedding notion and the consequent
operation of darning or mending is continued the discs or plates A and lever E' E
is held or fixed in the position shown in Fig. 1. The arm or bar E' can be made
to jam against the arm E2 with sufficient force to hold the lever E' E' fixed in the
position shown in Fig. 1.
The thread portious I are looped about the hook sets a a¹ and also about the
attaching devices or hooks b. These hooks b are made swinging or movable on the

page_text: pivots T connecting said hooks to the adjustable head B which is formed or other-
wise provided with eyes B' through which pass the arms E' so that said arms
sustain the head B and constitute a guide for the latter in its adjustment toward
and from the head which comprises the discs or plates A.
The hooks can be swung about pivot T by a handle U and said handle U has a
catch or catches V which in the position of parts shown in Fig. 1. engage a rack or
shoulder W on the base C so as to prevent the head B slipping toward head com-
prising the discs or plates A. The material D may frequently cover the rack W
but said material is pierced or pressed by the catch V sufficiently for the latter to
engage the rack or shoulder W.
When the handle U is swung to the position shown in Fig. 4. the hooks bare
reversed so that their open parts face the hooks a a¹ to allow the threads I to be
freed from the hooks b. At the same time the catch V is carried out of engagement
with the rack W so that the head B can be moved toward head A.
The hooks a a as seen in Fig. 2. are formed each with a hook side or dented
side while the opposite side is straight or plain. The hooks a a' face in opposite
directions and when in the position shown in Fig. 2. the hook parts are free to
catch and hold the loops or thread I. When however the hooks a¹ have been
shifted laterally to the position shown in Fig. 5. the flat sides of hooks a¹ have
pressed the loop I out of the hooks or dents of a and the flat sides of hooks a have
similarly forced the loops I out of the hook parts of hooks a¹.
The shifting of the hooks a¹ is accomplished by pressing laterally on the handle R
in one direction or another so as to shift said handle together with the plate a³ and
hooks a¹ to one side or another. The plate a² (Fig 6) has a cut or slot Y large
enough to allow lateral shifting of the handle R without moving the plate a or
hook a.
The plate a³ is provided with a spring tongue Z easily formed by cutting part of
plate a and said tongue Z has dents or depressions 6 62. The plate a² has a
projection or lip b³. In the position of parts shown in Fig. 1. the dent or catch b¹
is in engagement with the lip or holder 6 so as to prevent accidental shifting of the
hooks a¹. When however the handle R is forced to one side to the position shown
in Fig. 5. the spring tongue Z is actuated so that the dent b¹ is forced out of engage-
ment with the lip and the dent 62 snaps into engagement with the said lip b³.
The hooks a' can thus not accidentally shift to one side or another.
When the hooks a a' are in their disengaging position as seen in Fig. 5. the loops I
of the thread are readily freed by dropping the hooks below the base C which can
be done by pressing the button EB with lever E Es to the position shown in
Fig. 4. The hooks a a¹ will by this motion be dropped down or drawn out of the
loops I.
Of course this dropping motion of the hooks a a¹ is not necessary, since when the
hooks are in the disengaging position the loops I might be stripped or pushed off by
hand. In this case the lever E' E' would be dispensed with, the discs A having
their pivot X secured directly to the lugs E' as seen in Fig. 7.
The motions of arms E° from the position shown in Fig. 4. to the position shown
in Fig. 1. can be limited by noses E which extend from the arms E.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed I declare that what I
claim is;
1. The combination, in a darning implement, with a head provided with recipro-
cating hooks, of a head B provided with swinging attaching devices b, and a handle 5
connected with said attaching devices for swinging them to their releasing position
substantially as described.
2. The combination, in a darning implement, of a base C having a rack W, a
head provided with reciprocating hooks a a¹ and a sliding head B having swinging
attaching devices and a swinging handle U adapted to swing the attaching devices 5
and provided with a catch V for engaging the rack, substantially as described.

page_text: 3. The combination, in a darning implement, of a base having a rack W, a head'
provided with reciprocating hooks a a, a head provided with movable attaching
devices b, and a movable handle adapted to move said attaching devices and having
a catch for engaging the rack, said attaching devices and catch being made swinging
so as to be capable of being moved to their releasing position, substantially as
described.
4. The combination, in a darning implement, of a head provided with two sets of
reciprocating hooks, one set being laterally movable and having a spring catch Z,.
and the other set provided with a projection 63 adapted to be engaged by the catch
to hold the laterally movable set of hooks after it has been shifted, substantially as
described.
5. The combination, in a darning implement, of a head B provided with attaching
devices b, a head composed of two plates adapted to move in parallel planes and
having hooks a a', a bell crank lever frame connected with the two plates, and
devices carried by the bell crank lever frame for moving the two plates, substantially
as described.
6. The combination, in a darning implement, of a head B having attaching
devices b, a head comprising two sets of hooks a a¹ which are adapted to alternately
rise and fall in parallel planes, oscillating discs or plates A connected with said
hooks, and a handle R for oscillating the discs or plates, substantially as
described.
101 1
TI
1000