Year: 1886

page_text: I. MICHAEL PROTSCHкO of 10 Museum Ring, Budapesth, Hungary, Gentleman
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 closing or fixing device for printing
frames allowing of a very easy and secure fixing of the forms or compositions in
the frame.
In the accompanying drawing Fig. 1 represents this metallic closing device
consisting of four wedge-shaped perforated pieces, or quoins. Two of these
parts a a¹ are cast in one piece so that the thick ends are contiguous. The two
other quoins b b¹ lie with their narrow ends toward each other and are adapted to
be slid towards each other, below the upper double quoin, by means of the quoin
lever shown in Fig. 3 which may be used in two ways, namely, the hooks of the
quoin lever are introduced into convenient perforations on the respective quoins
and the lever pressed down, or the pins situated on one side of the lever are intro-
duced into corresponding holes in the quoins lying opposite each other, and the
latter moved by a lateral movement of the lever.
By thus driving up the outer quoins the double quoin is pressed vertically up
and the inner space of the frame thereby made smaller, and the type contained in
the same is tightly fixed.
Fig. 1 shows this fixing device secured to the frame. The device is rendered
still more advantageous by connecting the quoins with each other and thereby
preventing them from being separated, by causing a dovetail-shaped groove cut
into the lower quoins to embrace a correspondingly shaped bead on the side of the
double quoin as in Fig. 5.
Small beads c c are arranged vertically to the respective sides, at an angle to the
frame, and form in the said angle, a rectangle. These may be provided with
recesses for receiving the the ends of the double quoius (or the latter may be
recessed to slide on the said beads) to allow the quoin device to be arranged on
two contiguous sides of the frame as in Fig. 1.
Fig. 4 shows a modification of this closing device, the construction here con-
Bisting of two parts each of which is made of one wedge, and which are likewise
joined by means of a dovetail shaped groove and corresponding bead and are

page_text: applicable to any frame.
To prevent these two quoins from separating or sliding
longitudinally apart, the lower quoin is provided at its base with a pin or set
screw f. projecting through the dovetail shaped groove in the lower quoin (Fig. 7)
into a small slot in the bead of the upper quoin, and adapted to slide loosely
therein, this slot being closed at each end so that the two quoins cannot slide
apart.
The construction shown in Fig. 9 consists of a bar g g¹ the ends of which are
wedge shaped, and two separate sinaller quoins h h¹ like the arrangement shown in
Fig. 1 except that the device is not fixed to a frame and can be arranged on any
ordinary frame, and that the upper and lower quoins are united to each other as
shown in Figs. 6, 7 and 8.
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. A metallic fixing device for printers frames, which consists of two large
perforated quoins or wedges cast in one piece so that their broad ends lie towards
each other, and of two separate perforated quoins lying with their narrow ends
towards each other, and joined to the first by means of a dovetail-shaped groove on
the one, and a correspondingly shaped projection or bead on the other the said
device being suitably fixed on the frame, essentially as described.
2. A metallic fixing device for printers frames, not fixed to the same, consisting
of two large quoins cast in one piece and lying with their broad ends to each other,
and of two separate perforated quoins lying with the narrow ends towards each
other and joined to the former by means of a dovetail shaped groove on the one
and a correspondingly shaped projection or bead on the other.
The said groove
being furnished with a set screw or pin and the bead with a corresponding slot, to
limit the amount of slide of the quoins over each other, substantially as and for the
purpose described.
3. A metallic fixing device for printers frames which consists of two single
perforated quoins joined by means of a dove-tail shaped groove on the one and a
corresponding bead or projection on the other, a pin being arranged in the groove
and a corresponding slot in the bead to determine the relative slide of the quoins,
so as to prevent them sliding apart substantially as and for the purpose described.
4. The lever for actuating the quoins as described, applicable for this device
substantially as illustrated and described.
Dated this 10th day of May 1886