US736696A - Bail for sand-pumps. - Google Patents

Description

No. 736,696. P ATENTED AUG. 18, 1903.

v R. GRYTSBR.

BAIL FOR SAND PUMPS.

APPLICATION FILED JUNE 13, 1902.

UNITED STATES Patented August 18, 1903.

PATENT FFICE.

BAIL FOR SAND-PUMPS.

SPECIFICATION forming part of Letters Patent No. 736,696, dated August 18, 1903.

Application filed June 131 1902. erial No. 111,530. (No model.)

T0 to whom it nuty concern:

Be it known that I, ROBERT CRYTSER, a citizen of the United States of America, residing at Gibsonia, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Bails for Sand-Pumps, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in bails for sand-pumps, and relates more particularly to the mechanism carried by the bail for engagement with the cable.

My invention has for its object a device of this character which shall secure the cable so that the latter will be prevented from slipping or otherwise becoming disengaged from the cable. 7

The invention has for its further object a device of this character which shall embrace novel means whereby the gripping-jaws engaging the cable may be adjusted so as to more firmly grasp the latter.

With the above and other objects in view the invention consists in the novel construction, combination, and arrangement of parts to be hereinafter more fully described, and specifically pointed out in the claim.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and wherein like numerals of reference indicate like parts throughout the several views,in which- Figure 1 is an elevation of the device. Fig. 2 is a vertical sectional view thereof. Fig. 3 is an elevation of one face of one of the gripping-jaws.

The bail 1 at its lower portion has a valve 2 mounted therein, which latter is secured in its downward position by means of its weight as well as the pressure of water on the interior of the bail, all of which is wellknown in the art. At the upper end of the bail is secured at diametrically opposite points a pair of arms,which extend upwardly therefrom in parallel planes and then being curved in wardly and again upwardly in opposing inclined planes. The curved portions and upwardly-projecting ends of these arms are thickened and the inner faces of the lastnamed portion inclined, so as to form approximately V-shaped recesses or seats therebetween in which the raveled end of the cable or rope is received, and, as will be apparent, as the rope is moved longitudinally a wedge action will result. Arms are secured to the bail in any suitable manner, such as by rivets 3, which pass through the lower end of the gripping-jaws to the bail and are rigidly secured to both. These grippingjaws each have a tapering screw-threaded portion 4, the taper being in an upward direction. Thegripping-jawsareeachgrooved, as at 5, on their inner faces, the grooves being circular in form andextending to conical points at their outer ends, which will more readily receive the cable 6. By'reason of the inwardly-bowed portions of the gripping-jaws an inclined shoulder is formed which is adapted for engagement with the ends of the cable, which ends are preferably unraveled and bent 'upwardly,as will be noted at 8 from Fig. 1 of the drawings. raveled portions are bent so as to engage the raveled portion of the cable, the ends of the strands or lengths comprising the cable engagingin the shoulder just mentioned. These ends are placed in their position previous to the tightening of the nut or clamp member 9,

which has an interiorly-threaded portion 10 tapering upwardly, so as to readily receive the threadedportions of the gripping-jaws. The cable passes through the guide member 11, carried by the nut 9, which Will tend to efiect a better engagement between the cable and gripping-jaws, as will be obvious. As previously stated, the unraveled ends of the cable are brought upwardly, so as to engage in the shoulder, at which time the nut is placed upon the gripping-jaws, so as to secure thelatterin engagement with the cable. When the upper end of the cable is pulled upwardly, so as to cause the unraveled ends to more firmly seat in the shoulder, it forms a knot, so to speak, which will'effect a firm engagement with the bowed portions of the grippingjaws. The nut is then screwed downwardly to the position shown in Fig.1, which by reason of its tapering portion and a similar portion of the gripping-jaws will firmly grasp the cable and efiect a secure engagement ,of the latter with the gripping-jaws. It is obvious that this device is very simple and contains These unfew parts which might become deranged or otherwise inoperative and a perfect engagementis formed between the bail and the cable.

While I have illustrated the most practical embodiment of my invention, still it is obvious that various changes may be made in the details of construction without departing from the general spirit and scope of the invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a device ofthe type set forth, the combination with the body portion of the pump, a pair of arms secured to the upper edge of the said body portion at diametrically opposite points, and extending upwardly in parallel planes, then being increased in thickness and curved inwardly, a tapering external screw-threaded clamping-jaw formed inasecea points below said grooves being inclined outwardly therefrom; a cable arranged in the grooves of said jaws and having its lower end raveled, and bent upon itself, and engaging the inclined faces of said jaws whereby said cable is tightly wedged, and a clamping member having a tapered interior screw-threaded portion mounted on said cable and engaging said jaws whereby the said jaws are forced inwardly into engagement with said cable.

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

' ROBERT ORYTSER. Witnesses:

JOHN NOLAND, E. E. POTTER.

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