US1183977A - Photographic-print square. - Google Patents

Description

H. r. Moms. PHOTOGRAPHIC PRINT SQUARE. APPLICATWN FILED NOV. 14) 1911.

1,183,977. Patented May23,1916.

1H imm UNITED STATES PATENT OFFICE.

HUGO F. HOEFLE, OF ROCHESTER, NEW YORK, ASSIGNOR T0 EASTMAN KODAK COM- IPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

PHOTOGRAPHIC-PRINT SQUARE.

Specification of Letters Patent.

Patented ay 23, 1916.

To all 'whom t may concern:

Be it known that I, HUGO F. HonrLE, of Rochester, in the. county of Monroe and State of New York, haveinvented certain new and useful Improvements in Photographic-Print Squares; and I do hereby declare the following to be a flill, clear, and exact description of the same, reference being had to the accompanying drawlngs, forming a part of this specification, and to the reference-numerals marked thereon.

My present invention relates to photography j and more particularly to photographic printing, and it has for lts object to provide a simple device capable of being cheaply produced for squaring or truing up photographic prints prior to mountmg the same, the square being also adapted to be used on the mounts and mats provided for' the print as Well.

Further objects of the invention are to render the square capable of deiining parallelograms and more particularly rectangles of any desired dimensions and to adapt the square to being folded conveniently and securely within small compass.

To these and other ends the invention coni sists in certain improvements and combinations of parts all as will be hereinaftermore fully described, the novel features being pointed out in theclaims at the end of the specification.

In the drawings: Figure 1 is a top plan view of a square constructed in accordance with and illustrating one embodiment of my invention; Fig. 2 is a section on the line a-a of Fig. 1, and Fig. 3 is a section on the line l bof Fig. 1, b oth sectional views being enlarged.

Similar reference numerals throughout the several igures indicate similar parts.

In order that the square may completely define an inclosed space' forming the area of the print it is made of two angle squares A and B, the arms 1 and 2 and 3 and 4, re-

spectively, of which overlap each other at 5 and 6, while one unit of each pair also overlaps a unit of theother pair, as at 7 and 8, forming in the present instance an inclosed parallelogram C. The arms of each angle A and B are detachably secured together in rigid relationship preferably in the manner indicated in Fig. 3 which illustrates the .arms 3 and 4 of the angle square B and to this end, the arm 4 is provided in the region of the overlapping portion 6 with recesses 9 with which engage pins or projections l0 that, in the present instance extend through reg1stering openings 11 in the arm 3 and are secured to a removable plate 12. Extending through the latter and both armsis a bolt 13 having a head 14-engaging on one face of one arm and carrying a threaded nut 15 at the other end which is tightened down against the plate 12 to hold the projections l() in the recessesof the arm. These recesses are so spaced and arranged with reference to the angle of the arms 3 and 4 that the bolt and plate 12 may be removed and the arms detached from the relation of Fig. 1 and laid one on top of the other to extend coincidently, with the apertures 9 and 11 in a reverse register. The plate 12 and bolt 13 may then be replaced in the same manner as before and the square thus maintained in a folded relation in which it is secure 'and compact.

In order to contract or enlarge the area C,

'the two angle squares A and B are made to slide upon each other in two directions at right angles to each other so that either or both dimensions of the area may be varied and to this end, all of the arms are provided with guides constituted in the present instance by central longitudinal slots 16 and at the intersecting portions 7 and 8 bolts 17 are passed through the arms within the slots to serve as securing devices. A head 18 on each bolt engages the outer face of one arm,

being the arm 1 in Fig. 2, while on the other side of the intersecting portion 7, for instance, it is provided with a plate in the form of a spider 19, engaged by a threaded thumb nut 20. A spring 21 is suitably in- 'terposed between the thumb nut and the spider for purposes later described. The spider 19 embodies suitably spaced fingers or projections 22 and 'these engage the slotted guides 16 of each arm laterally of the bolt 17 and on opposite sides of the intersecting arm, one pair of oppositely arranged ngers being, of course, in a plane lower than that of the other in order to reach the under arm.

The bolt 17 is locked against rotation relatively to its extension or spider 19, as by the formation of a flattened portion 23 thereon passing through a corresponding opening in the spider and when it is desired to adjust the square to change the size of the area C, the nut Q is loosened. This doesv not release the intersecting arms from engagement they being still held by the spring 21, but with a yielding pressure so that one arm may be slid upon the other to any location desired. During this operation the lingers 22 traveling in theguides 16 rigidly maintain the true angular relation of the arms, being likewise held in place by the pressure of the spring. The thumb nut 20 is tightened after the adjustment is made clamping the spider andboth arms tightly together and the 'square' is read)T vfor use. Of course, both of the bolts 17 are removable by detaching 'the thumb nuts 2O therefrom, but may be again applied (simply to keep the partstogether) when the arms are assembled in the folded relation before described.

If desired, the arms of either angle square A or B, or one arm' of each., representing two dimensionsof the area C, may be graduated, as indicated, so that the dimensions of the latter in a given instance may be predeterminedD A The device of my invention will suggest itself for other similar uses outside of the photographic art, but I have described it in this .connection as the present embodiment was designed primarily for truing up photographic prints -I claim as my invention: l

1. In a square, the combination with a pair of crossed arms providedwith slots forming guides, of .a spider comprising a plate lying flat against and spanning the crossed portion vof the arms and provided with relatively rigid and inseparable fingers cooperating with the slot in each arm on opposite sides of the other arm, said fingers proceeding downwardly from the plate to the planes of the respective arms and thence longitudinally within the slots to lie flush with the face of the arm, and a bolt extending centrally through the spider and through the slots of both arms for securing said parts together.

2. In a square, the combination with a pair of arms each having two separate recesses therein so positioned relatively to each other and angularly` te the arm as to adapt the recesses of one arm yto respectively reglster with those of the other when the arms are either disposed angularly to each other or coincidently in superposed relation, and means comprising relatively fixed projections extending through the recesses for securing the arms together in either position.

HUGO F. HGEFLE. Witnesses:

RUSSELL B. Gnrrrrrn, FLORENCE E. FRANCK.

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