US 269709 A
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Description (OCR text may contain errors)
H. F. READ.
VISE. I No. 269,709. Patented Dec. 26, 1882.
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Patented Dec. 26, 1882.
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Patented 1300.26, 1882.
HENRY F. READ, OF BROOKLYN, NEW YORK, ASSIGNOR TO READ, GLEASOX 80 READ, OF SAME PLACE.
SPECIFICATION forming part of Letters Patent No. 269,709, dated December 26, 1882.
Application filedSeptember8,1882. (Nomodeld .To all whom it may concern Be it known that I, HENRY FRANKLIN READ, a citizen of the United States, residing at Brooklyn,in the county of Kings and State of New York, haveinvented new and useful Improvements in Vises, of which the following is a specification.
In this vise the movable jaw is adapted for parallel movement within the body or box of the fixedjaw, with a screw working in a fixed half-nut, with which it is automatically engaged and disengaged by the action of a movable half-nut, asliding locking device to maintain the engagement, and a lever device operated thereby to release the engagement, whereby to allow the movablejaw to be freed from control of the screw, so that it may be moved in and out by hand,or to be controlled by the screw to firmly grasp the article between the jaws, In this combination the sliding device not only looks the screw in action by sliding over its end, but operates the lever device to raise and free the screw from the fixed half-nut by the same movement of the sliding device which carries it free ofthe screw. The fixed jaw body or partis mounted upon a ball-and-socket joint, in which a screw-cap is combined with an intermediate clampingring to lorm a convenient and efficient device for setting and holding the jaws in any desired position.
The objects of my improvements are to provide for locking the screw with the fixed halfnut and for freeing it therefrom when unlocked, and to provide effective means for clamping the ball-and-socket universal joint.
The accompanying drawings represent a vise whereby these objects are attained, in which- Figure 1 represents a vertical longitudinal section of the vise as it appears when the screw is locked in position for controlling the movable jaw; Fig. 2,a similar section, the screw being shown in unlocked position and raised from the fixed half-nut to allow the movablejaw to he slid in and out by band; Fig. 3, a cross-section taken on the line as w of Fig. 1; Fig. 4, a similar section taken on the line 0 o of Fig. 2; Fig. 5, an end view of the cover the end of the screw and to-operate the I releasing-lever device to raise the end of the screw from its locked position with the fixed half-nut; Fig. 8, a bottom-view of thelocking .aud releasing device, and Figs. 9 and 10 show in elevation the locking and releasing device in the position when the screw is locked and in the position when itis unlocked.
The non-sliding jaw A is formed upon a guide-box, a, open at both ends, secured upon the screw-stem b of a ball, 0, seated in asocket of the base-casting B, which is screwed to the bench. The movable jaw O, is formed upon one end of a hollow bar or slide, D, open at the bottom, adapted to fit and slide within the open guide-box, and carries the operatingscrew. A half-nut, E, is secured within the guide-box upon its bottom, and is of a length greater than the extent ofthe movement of the slidingjaw. It does not join the inner \'ertical walls of the guide-box, but leaves a space on each side to receive the side plates of the hollow bar or slide, as shown in Figs. 3 and at; The half-nut E is bent down at its rear end and screwed to the guide-box, its front endbe ing screwed to a horizontal front projection of said box. The operating-screw F has the usual sliding hand-lever,f,and is secured to the front end of the hollow bar D by a key-plate. d, fitted within a groove of the screw-stem, so that the jaw-bar and screw must move together. A movable half-nut, G, is fitted within the hollow bar, is always engaged with the screw, and is'moved by its being held in such engagement by a plate-spring, e, pinned to the top of the half-nut, and bearing upon the under side 0 of the top of the hollow bar. This movable half-nut is of slightly greater length than the screw, the length of which itselfis about onequarter that of the fixed half-nut, within which it engages and is locked to place the movable 5 jaw under the control of the screw to grip and hold the article placed between the jaws. The disengagement of the screw allows the movablejaw to he slid in and out by hand, so as to be quickly adjusted to the position to admit the article between thejaws, when the screw may be at once brought into working position to give the required grip upon the article. The locking of the screw is efi'ected by means of a sliding locking device, using the screw itself to receive the locking action of said device to hold the screw in firm engagement with the teeth ot'the fixed rack, in order to operate with the screw. This locking device is a slide, g, formed with aconcave end, 9, and a stem provided with a spiral spring, h, which exerts a constant pressure upon the slide to maintain it in locked position. The locking device is fitted within a box, H, secured within thehollow bar, open atone end and closed at t be other,
and within which the locking-slide is free to be moved toward and from the end of the screw, with its stem passing through a holein the closed end of the box. The springh presses at one end against the closed end of the box and at the other against a shoulder of the slide to force the concave end ofthe latter out of the box in position over the end of the screw. For this purpose the screw terminates in an unthreaded end, i, of a diameter to be received in the concave of the locking device, so as to allow the screw to be revolved while being held in engagement with the fixed half-nut.
To release the screw froinits locked relation with the fixed half-nut, I provide a right-angled lever pinned within the box H, so that one end, n, stands vertically within a slot, 1, in the locking-slide g, and the other end, it, lies horizontally in a slot in the bottom of the box, is concave on its upper side, and receives over it the unthreaded end 2" of the screw, which has a diameter less than that of the unthreaded end t. The slot 1' allows of a sutficient movementof the slide 9 to carry its concave end over the nnthreaded end i of the screw, a shoulder in the box serving as a stop to limit such forward movement. By this construction, the slide, when extended, locks the screw down, and when retracted to uncover the cylindrical part 'i of the screw forces back the upper end, a, of. the lever and raises its lower end, a, against the cylindrical part t" of the screw, raising it free of the fixed half-nut. This backing out of the slide is effected by turning the screw to the left, which causes the movable half-nut to be carriedback against the projecting end of the locking device, so as to force it back, as stated. 1n turning the screw to the right the movable half-nut is moved away from contact with thelockingdevice, dcpressing the liftingend of the lever, and under the pressure of the spring upon the movable half-nut the screw is again engaged with the fixed half-nut. About one revolution of the screw is sutficient to engage it with and to effect its disengagement from the fixed half-nut. The division of the nut into a fixed and a movable part gives the advantage ofusing the fixed part with the screw and the movable part as a separate device to force the screw in engagement with the fixed half-nut, to unlock the screw, and to indirectly'operate the lever, whereby the screw can then be lifted by it to free it of the fixed half-rack.
The construction ot'thc device by which the jaws can be adjusted in any desired position is as follows:
The base is formed with a raised part having a hemispherical concavity to receive the ball 0, upon the stem of which thenon-sliding jaw-body is mounted and forms a universal swivel-joint. A screw-thread is cut around the circumference ofthe raised base part to receive an open-top screw-cap, I, and in connection with which and the ball an intermediate ring-chi mp, J, is arranged to receive the pressure of the screw-cap. The ring-clamp being seated upon the ball and forming a .bearing for the screw-cap, the ball is thereby firmly clamped in the desired position. The ringclamp is prevented from turning in swiveling and adjusting the vise by one or more holdingpins, 8 s, in the top of the raised part inwhich the socket is formed, over which recesses in the under side of the ring-clamp fit, whereby the ring is held from revolving and unscrewing the cap while operating the vise.
The screw-cap is formed with an interior projecting top rim, v, whith forms a bearing upon the fiat upper surface of the ring-clamp, the inner surface of which is a segmentof a circle coinciding with the radius of the ball. The screw-cap has a series of holes, w, in its circun'ifereuce, within which a lever, 00, may be inserted to screw or unscrew it, as may be desired, to adjust the vise.
It will be understood that the releasing device for the screw operates at the time the locking device leaves the largest unthreaded part of the screw and the end upon which the lever-releasing device acts must be small enough to allow it to be lifted within the con cave end of the locking device, and thereby allow the free end of the screw to have sufficient vertical movement to raise it clear of the fixed half-nut, the stem of the screw having sufficient play in its bearing for this purpose.
To prevent the dirt and filings from working into the joint of the screw at the front end ofthe slidingjaw, a circular recess, t, isformed in the front end of the hollow bar to receive a washer, a, and the large end F of the screw which enters said recess a suflicient distance to cover the joint between the washer and the screw-head. The screw-head just outside of the recess has a groove,z, or depression around it, joining the front edge of the recess, which serves to receive and facilitate the sliding off of the filings which pass onto the screw-head from the curved front of the movablejaw,and thus prevent an accumulation of the filings at this point, and necessarily lessening the wear and clogging ofthejoint, andleaving the screw free to be easily revolved.
The universal jointin its adaptation for separate and distinct uses will be made by me the subject of another application for Letters Patent, as it is applicable to other uses.
I claim- 1. The combination, in'a vise, of the screw F, having unthreaded terminal parts of unequal diameters, the'fixed half-nut E, the movable half-nut G,and a depressing-spring, e,theret'0r, with the sliding locking device g, a projecting spring, h, and a lever device pivoted toa fixed part of the vise, having one end connected to the sliding locking device and the other in such relation to the terminal unthreaded end of the screw of least diameter as to operate to lift it by the same movement of the lockingdevice by which it is carried free of the screw.
2. The combination, in a vise, ot' the screw F, having nnthreaded terminal parts of unequal diameters, and the fixed half-nut E, with a slidinglocking device,g, having the slotrand a spring-bearing, the movable half-nut G for driving thelocking device back, and the rightangled lever pivoted Within the box of the locking-slide, having one end, 02, extending into the slot thereof, and the other, n, extending beneath the smallest terminal end of the screw, all constructed and adapted for operation substantially as described, for the pure and h, and the lever device pivoted to the fixed box, all constructed, arranged, and adapted for operation substantially as herein vset forth.
4. The combination, with the fixed and movable jaws of a vise, of a universal swiveling joint, consisting of the base formed with a vertical projection having a concave socketand a circumferential screw-cap, and a non-turning ring-clamp interposed between the screw-cap and the ball and bearing upon the latter, substantially as described, for the purpose specified.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
' HENRY F. READ. Witnesses:
A. E. H. JOHNSON, J. W. HAMILTON JOHNSON.