US249568A - Door and sash clamp - Google Patents

Description

(No Model.) 1

A. W. ALE. DOOR AND SASH CLAMP. No. 249,568. Patented Nov. 15,1881.

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. and lockin g devices, whereby the door or sash 'one operation, as hereinafter described.

' in the lower cross-bars of the legs.

at their inner ends, in which are fitted bars it,

UNITED STATES PATENT OFFICE.

ATLEY W. ALE, OF OARO, MICHIGAN.

.N-DOOR AND SASH CLAMP.

SPECIFICATION forming part of Letters Patent No. 249,568, dated November 15, 1881.

Application filed May 13,1881. (No model.)

To all whom it may conceriz Be it known th at I, ATLEYW. ALE, of Caro, in the county of Tuscola and State of Michigan, have invented a new and Improved Door and Sash Clamp, ot'which the following is a full, clear, and exact description.

Myim proveinents relate to clam pin g tables or benches for holding doors and sashes during the process of their manufacture. The invention consists in a novel combination of levers can be clamped equally upon all sides and at In the accompanying drawings, Figure 1 is a side elevation, partially sectional, of the apparatus. Fig. 2 is a plan view of the same, and Fig. 3 is an end view, partially in section.

Similar letters of reference indicate corresponding parts. V

A is the bed-frame carrying the mechanism. a is the operating-shaft, extending the whole length of the frame, and sustained in bearings b b b are hubs, fixed on shaft a, formed with arms at opposite sides, that serve as cranle arms. One end hub is fitted on the shaft, so as to be movable endwise thereon, to allow adjustment.

0 c c are cross-bars, preferably of metal, secured upon the top of the frame A.

d d are bars extending upon the frame lengthwise, fitted near one end with ear-pieces or stops d, held in place by set-screws, to allow adjustment, and fitted near their other end with clamping-slides'e.

f is a cross-shaft, sustained in suitable bearings on the legs of frame A, and connected with shaft a by a link and crank'armsf, so that the movement of shaft a shall be communicated to shaft f. Gearing maybe substituted for the link-connection, if desired.

9 g are crank-arms on shaftf.

h h are slides upon the bars 0, notched at their outer ends and formed with lu gs or flanges that extend length wise of the frame A.

k k are movable ear-pieces fitted on the bars I l are levers, connected by links Z with the arms of hubs b of shaft' a, and extendin through apertures in bars 0 to the slides h, with which ,thelevers connect by lugs or pins taking into the notches.

m m are levers, connected to the arms 9 of shaftf by links in and passing to the slides 0 through apertures in bars d.

On the end of the shaft to is a hand-lever, a, and also a ratchet-wheel, 0, and pawl. \Vhen the lever n is turned back the connecting-links are slackened, so that the slides-h, bars d. and the clampingslides e can beset up closely to the work which is to be laid upon the bars at 2'. Then by reversing the lever a, to give the shafts a fa quarter turn, the levers l m are thrown outward at their lower ends and the slides he moved simultaneouslyinward aga'nst the sides and ends of the door or sash, an at the same time tightened upon their sustainingbars 0 i. The door or sash is thus squarely and securely clamped. s

The construction as described gives powerful leverage, while but a short movement of the operating-lever is required.

Any ordinary'sized door, sash, or blind can be clamped in the machine.

To provide for narrow work, the bars 0 have apertures within the sides of frame A, so that the levers 1 can be shifted thereto.

I am aware that it is not new to combine adjustable clampingbnrs, slides, operatingshafts, arm, rock-shaft, and operating-lever with a table having raised frames; but

What I claim ism 1. Theshaita,havinghubsb,withcrank-arms at opposite sides, one hub being movable, in combination withihe cross-bars 0, bars having adjustable stops d, with clamping-slides e, the cross-shaftf, connected by link and crank-arms with shafta, the slides h, carrying bars 2', and v the levers Z, connected by links with hub-arms extending through bars 0, and connecting by notches and logs with the slides h, as and for the purpose specified.

2. The combination, with theapertured bars d, the shaftf, having arms g, and the slides e, of the levers m m, connected by links m with said arms, and passing through bars d to slides 12, as shown and described.

ATLEY W. ALE.

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