US 255069 A
Description (OCR text may contain errors)
(No Model.) 4
G. W. WOODPORD'.
B0X. PRBSSING CLAMP.
No. 255,069. Patented Mar.14.188z.
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mi M/M n fvw @when i UNiTngD STATES PafrnNr. @erica CHARLES W. WOODFOBD, OF ESSEX, NEW YORK.
SPECIFICATION forming part of Letters Patent No. 255,069, dated March 14, 1.882. Application filed December 29, 1881. (No model.)
T o all whom it may concern: i
Be it known that I, CHARLES WELLINGTON WOODFORD, of Essex, in the county of Essex and State ot' New York, have invented certain new and useful Improvements in Box-Squeezing-Up Machines; and I doliereby declare that the following is a full, clear, and exact description of the same.
My invention relates to theclass of machines used for the construction and putting together of boxes known as lock-corner77 boxes, and has for its object the forcing together ot' the sides and ends of such boxes, so as to interlock each other at the corners, by which the nailing together of the sides and ends is entirely dispensed with. Several means have heretofore been employed for this purposesuch, for instance, as a system of cams, the use of screws, Ste-but in all these devices nearly as much time is lost in the backward movement and adjustment ofthe acting jaws of the machine as is actually consumed in doing the work.
By my invention means are provided by which the sides and ends of the box can be squeezed together either simultaneously orindependently, at the will of the operator, the greatest amount of leverage or power being secured while acting upon the work, and a quick return ofthejaws, which then remain open. It may be thus described. In the top plate of a frame suitably constructed and carried are formed dovetail grooves, crossing each other at right angles. In these dovetails are set and move respectively xed and movable jaws, forming the four sides of the receptacle for the box, the former or fixed jaws being ad justably secured in position and the latter or movable jaws operated by means of toggles pivoted to them and to fixed standards at the ends of the frame and worked by independent levers. These jaws are restored to their normal and open position as soon as liberated by counter balances suitably arranged. For full comprehension, however, of the invention, reference must be had to the accompanying drawings, in which x Figure l is a perspective view of the machine, showin g the movable jaws-drawn back. Fig. 2 is a longitudinal sectional elevation taken through the longarm of thetrame, showing thejaws pushed forward; and Fig. 3, plan of jaws arranged to form boxes of differing sizes.
vSimilar letters of reference indicate like parts.
Ais theframe of the machine, made as shown, with along and a short arm crossing each other at right angles, and suitably carried.
A is the top plate, in which arei'ormed dovetail grooves a a', also crossing each other at right angles.
B B and C C are respectively the two fixed and two movable jaws, forming the mold or receptacle for the box, each of these being .provided with a base-plate, B2 B3 G2 C3.
b b` c c are dovetail projections on thc under side of these jaws aud plates, fittingloosely in the grooves a e of the top plateb and c in the groove a and b c inthe groove a. j
D D are standards or uprights formed at the end of the frame behind the tixed plate B, in these being formed threaded bearings for the adjusting-screws d d, which are secured in the plate B2, and serve either to draw the jaw B back or move it forward. Similar set-screws working in like standards, D D', and, secured in plate B3, serve to adjust position of jaw B. Set-screws e c e c pass through slotsl in the base-plates above mentioned and secure them in the positions desired.
F and G are standards placed where shown at the ends ofthe frame, to which are pivoted toggles F and Gr, secured at their other ends by pivotsfand g, respectively, to the movable jaws C C. vThe point of the toggle F is connected by a link, Hf, with a lever, H,pivotcd, as shown, to the standard F, projecting beyond the same, and carrying on its end a counterbalance-weight, 7L. f
K' is a link connecting the pointof the toggleG with the lever K, pivoted to a projection, K2, from the frame, and carrying on its end a counter-balance, 7c. v
The operation of my Iinvention will easily be understood from the drawings andthe forego ing, and may be thus briei y alluded to. By depressing the inner ends of the levers H and K the jaws C and C', coming in contact with the sides of the box to be squeezed-up, are rap- IOO idly moved forward till the opposite sides of the box come in contact with the jaws B B', when a direct and strong pressure is exerted upon them, and the sides and ends, interlocking each other at the corners, are forced into each other, the box being thus formed. So soon as these levers arelet go the counter-balances draw up the toggles F and G and cause the jaws O and C' to move rapidly backward, thus releasing the squeezed-up box.
To enable the machine to make boxes of differing sizes, blocks, as shown at L L', Fig. 3, may be secured to the plates C C', to diminish the area of the receptacle.
As the dovetails b b' c c are ot' somewhat less size than the grooves a a', a certain amount of play is allowed, so as to compensate for unequal thickness ofthe wood. rlhis is also asssted by the way in which theoperating parts are secured together and to the jaws.
The levers H K, instead of being straight, as shown in thc drawings, may be bent to suit varying circumstances, their connection with the toggles be made somewhat differently, and the counter-balance 7c be hung at the end of a line secured to the toggle-point, and passing over a sheave overhead.
What I claim is as follows:
1. In a box-squeezingup machine, themovable jaws, substantially at right angles to each other, operated independently through toggles by separate levers, and drawn back by counterbalance-weights, substantially as herein set forth.
2. In a box-squeezing-up machine,the movable jaws carried on dovetails resting loosely in dovctail grooves substantially at right angles to each other formed in the frame, conlbined with fixed abutments, as and for the pur poses set forth.
3. In a box-squeezing-up machine having movable followers,lthe tixed plates B B', secured in position substantially at right angles to each other by adjusting-screws attached to saine and working in bearings D D', substantially as herein described.
4. The combination,in aJ box-squeeZing-up machine, of movable jaws, arranged at right angles to each other and operated independently through toggle-levers,and adjustablyfsec'ired jaws, as herein shown and described.
CHARLES WrLLn'eroN WooDroRn.
JOHN HosKINs, H. EVAN WooDFoRD.