US896487A - Printer's furniture. - Google Patents

Description

PRINTERS FURNITURE.

APPLICATION FILED DEO.14, 1907.

i v vwenl'oz I J Jazz a 0mm JOHN C. URBANK, OF MINNEAPOLIS, MINNESOTA.

PRINTERS FURNITURE Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed December 14, 1907. I Serial No. 406,535.

To all whom it may concern:

Be it known that I, JOHN C. URBANK, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented new and useful Improvements in Printers Furniture, of which the following is a specification.

This invention relates to printers furniture, the object of the invention being to provide a longitudinally expansible piece of printers furniture, the sections of which are so combined and related that the furniture may be extended or contracted in length without varying the general and maximum cross sectional dimensions thereof.

A further object of the invention is to provide in connection with a longitudinally expansible furniture extension, means for locking the sections at any point of relative adjustment; also means for releasing the same from such interlocked engagement to permit the furniture to be contracted in length.

With the above and other objects in view, the invention consists in the novel construc' tion, combination and arrangement of parts herein fully described, illustrated and claimed.

In the accompanying drawings :-Figure 1- is a perspective view of a piece of printers furniture embodying the present invention, shown contracted. Fig. 2 is a similar view of the same, shownextended. Fig. 3 is a longitudinal section through Fig. 1. Fig. 4 is a cross section through the same. Fig. 5 is a detail View of the presser rod. Fig. 6 is a detail perspective view of the ratchet catch and its spring.

The printers furniture contem lated in this invention comprises essentialy a plurality of sections 1 and 2 and each of said sections is of laminated construction or in other words, each section consists of a plurality of oblong plates or laminae 3 all of the laminae of each section being held at a suitable distance from each other by means of interposed s acing blocks or sections 4, at the outer end 0 each section, the s acing blocks or sections and the plates or laminae being secured together by fasteners which are shown for convenience in the form of screws. The plates or laminae on one section alternate with a slide between the plates or laminae of the adjoining section as clearly shown in Fig. 2 and by thus providing the sections with sliding, interfitting and overlapping laminae, said sections may be slid toward or away from each other to give any desired length to the furniture without varying the general and maximum cross sectional dimensions of the same.

In order to provide for locking the sections 1 and 2 relatively to each other when brought to the desired adjustment, one of the plates is provided on one side with ratchet teeth 6 which extend transversely across the same while the adjoining and overlapping plate of the other section is provided wit 1 an opening 7 in which is located a ratchet catch 8 constituting in reality the movable section of said plate, said catch having ratchet teeth 9 which cooperate with the ratchet teeth 6 above referred to. The catch 8 is provided with a socket 10 which receives the central bent portion or offset 11 of a two-armed spring 12. The opposite extremities of this spring bear against the adjacent plate, the tension of said spring being utilized to hold the catch 8 in engagement with the teeth 7 which prevents the sections 1 and 2 from being closed upon each other or moved from the extended position shown in Fig. 2 to the contracted position shown in Fig. 1.

In order to releasethe catch 8, I provide a presser rod 13 which extends along a groove 14 in one of the plates or laminae and at a suitable point is offset or provided with a. short crank 15 while the outer extremity thereof is rovided with an operating angle arm or small crank 16 which works in recesses 17 in the end of one section. When the crank arm 16 is turnedto an arc of 90 the presser rod 13 acts to force the catch 8 away from the teeth 6, thus permitting the sections to be pushed together or contracted as shown in Fig. 1. The catch 8 however, does not prevent the sections from being drawn outward.

One of the sections may, if desired, be graduated as shown at 18 to re resent inches and fractions thereof and suc graduations may be used in connection with the extreme edge 19 of the overlying plate of the adj oining section to indicate when the furniture has been extended to the desired length, the total length of the furniture being indicated by the graduations 1 8 in line with the edge 19. The furniture will be found especially useful in locking up printing forms, and in blank book work especially and will be a labor saving device for the general use of printers.

Having thus described the invention, what is claimed as new, is

1. Printers furniture consisting of a body composed of sections slidable lengthwise relative to each other, ratchet teeth on one section, a ratchet catch connected with the other section, and a crank rod for throwing said catch out of engagement with the ratchet teeth.

2. Printers furniture consisting of a body composed of sections movable lengthwise relatively to each other, a spring catch carried by one section and adapted to engage and hold the other section, and a crank rod adapted to throw said catch out of engagement, substantially as described.

3. Printers furniture embodying overlapping and interfitting relatively slidable sections each of which is made up of a series of long strips and short spacing pieces therefor interposed between the end portions of the long strips, the long strips and short pieces of each section being fastened together, and means for locking said members against relative movement.

In testimony whereof I afliX my signature in presence of two witnesses.

JOHN C. URBANK. Witnesses FRANK C. GRIswoLD, MARY E. GRISWOLD.

Images