US1825130A

US1825130A - Binding post

Info

Publication number: US1825130A
Application number: US246200A
Authority: US
Inventors: Schneider Adolf
Original assignee: ARTHUR A SCHNEIDER
Current assignee: ARTHUR A SCHNEIDER
Priority date: 1928-01-12
Filing date: 1928-01-12
Publication date: 1931-09-29
Anticipated expiration: 1948-09-29

Description

Sept. 29, 1931. A. SCHNEIDER 1,825,130

BINDING POST Filed Jan. 12, 1928 \\\\IIIIII ,i lilfimi: v ullllll:

IN V EN TOR. 51W 5 ATTORNEY Patented Sept. 29, 1931 UNITED STATES PATENT OFFICE .AZDOLI SUENEID'ERfGF BROOKLYN, YORK, ASSIGNOR 0F ONE-HALFTO ARTHUR A. SCHNEIDER, OF EAST ORANGE, NEW JERSEY .nmnme rosr Application 'filed --.[anuary 12, "1828. vSerial No. 246,200.

invention relates .tofastening devices for wire, stays, fcables, wire terminals and similar articles. I 7

One object ofmyinvention is \to provide a simple, inexpensive and elfective device of this kind which will prevent the disengagement of the clamped .down article from itsintendedpos'ition.

.Aznother object .of my invention to prom wide within my device, means .for holding such articles attached thereto,.under constant tension, and prevent the means whereby the articleisiastenedfrom voluntarily loosening.

The foregoing and ifiurtherobjects will be I more fully apparent from the followingdescription and .the accompanying drawings, tormingpartiof thisf-inventiomand in which:

Figure 1 illustrates a preferred .form of my device,

m Figure 2 is a vertical cross sectional view theretlrrough,

Figure 3 .is a detail view .of thelower portion of my device,

.Figure .4 is amodifid .tonn thereof,

5 Figure .5 illustratesa modifiediorm of my device, which is somewhatsimplified 1 1110011- struction,

Figure 6 illustrates the application of .my device toe-n attaching'bolt,

m Figure .7 illustrates a detail view of a part of Figure .6,

Figure 7a representsan expanded springaas used in my device,

Figure .8 illustrates a modified form of 5 thedevioeshowninIFigurefi,

Figure ;-9 illustrates :another modified form of my device shown in Figure2,

Figure .10 is still another modification of my device in a-si-nrplevform.

Referring to Figures 1, .2, 3 and 4, there is shown :a body .10 which is :bored and drilled for a belt or screw .11 which passes through the hody outwards. The head 12 ofthe'screw or bolt remains within the body as shown in 45 Figure 2. The belt, passing through the the nut is turned in .thedireotion opposite .to

body, first is engaged by a terminal rest 13, which is stationary. The upper portion of 'theibolt is engagedby a. specially designed nut 14, provided with recesses 15, adapted to be engaged by a specially designed key or m wrench.

Nut 14 is provided with a springseat 16'and a reduced ,portion 17 which serves as .a guide or shank .for coil spring 18. This spring is preferably so constructed that its upper .reduced end, restingagainstseat 16, will :freely glide thereupon no matter in which direction the nut is turned. -The lower end portion of the spring, on the other hand, is pointy and adapted to engage the bottom of cup 19 when a that in which the spring is wound, as will be explained presently. The cup forms the .outer guide for .the spring, and provides a clamping face.20, shownin detail in Figure 3, under whichaterminal or :the end of a wire or cable may be-readily disposed, and by means of which the cable may be held in position, while the cable on theother hand holds cup 19 againstrotation. The cable end passes ,out through slot 21, formed between two fianges22 ofrthe clampingface. A modified form of such-clamping face is'shown in F ig- .ure 4 where theeIamping face 20 is shown to be radially knurled or grooved so as to produce .a friction face adaptedrto engage the article to'be clamped down.

In Figures 1 and 2, there is shown a wire 23' clamped down by means of nut 14:, spring 18, .and cup 19.

In the modified. form of Figure 5, there will be seen a similar construction to that shown in Figure 2. In this case, again a block .of material .24 is hollowed out at 25, to receive head 26 of bolt '27. The latter is engaged again by a terminal seat 28, adapted to form a rest for a terminal 29 o'fcab-le '30. The terminal is engaged by the lower sharp end of spring '31, which is held down by means :ofnut 32. This nut is reduced at 33 W impressed into the ma and is engaged by the spring, and a seat 34 is provided for the upper end of the spring, which is rounded off and adapted to glidably engage the face of seat 34;. In this construction, the outer cup for the spring is eliminated and the lower end of the spring engages the terminal 29 directly.

In Figure 6, there is shown still another modified form in which case a body 35 is shown reinforced by a plate 36. which is provided with a tireaded hole engaged by the threaded end of bolt 37. At the upper end of the bolt there is provided a head 38, which is recessed at 39, providing a seat 40 for the spring 41. Below tie lower end of the spring ll is again either a cable terminal or wire end, indicated at 42, which rests with its lower face against an anchor plate a3. This plate is shown in detail in Figure 7. It is equipped with prongs 44, adapted to be clial of the body 35, thus providing a r face for terminal or wire 42. The upper dull end of sgring 41 engages the recessed seat port on 40 of the head of the bolt, while the lower sharp end of the spring engages the terminal or wire 42 directly.

Figure 8 shows another modified form of my device in which a similar construction to that in Figure 6 is illustrated with the e};- ception that instead of a bolt with the head permanently attached thereto, a stud is em ployed which is threaded at both ends. A block of material 45 is shown to be reinforced by a plate 46, which is provided with a threaded hole engaged by the lower threaded end of stud d7.

The upper end of the stud passes tirough a washer 4:8,.upon which rests a terminal or wire end 49. Engaging that wireend is the lower end of spring 50, its upper end being seated against the seating portion 51 of nut 52, which is reduced at 53, forming a shank engaged by the spring.

In Figure 9, there is shown a modified form of my device from that illustri ted in Figure 2. In this case a block of material 53 is ag in shown to have a depression 5 housing Lead 55 of bolt 56. T upper threaded part of bolt 56 is engaged by a nut- 57. which is recessed at 58 providing a seat- 59 for a spring 60. The recess is wide enough to accomn'zodate a cup 61. The upper open end of the cup and the lower ripheral edge 62 of the nut 21 e so as to prevent the cup from disengaging the nut, thus also preventing the spring 60 from falling out. The lower faceof the cup may be again provided with means for clamping or otherw se holding the wire end (33 or a cable terminal in place.

A. still further modified form is shown in Figure 10, where a plate (A is seen engaged by the threaded end 65 0; bolt 66. Disposed between the head 67 of tie bolt or screw and the inner face of the cup 68, is the compressed expansion spring 69, the lower end of which is again sharp and adapted to frictionally engage the inner bottom face of the cup. The outer bottom face of the cup engages again a terminal or Wire 70.

Operation All of the above described devices are adapted to hold or clamp articles by the action of a compressed expansion spring which is clearly shown in its normal, expanded position in Figure 7a.

When the shank, forming either the reduced portion of the nut or the smooth portion of the bolt, which is engaged by the coiled spring, is turned in the direction in which the spring is wound, the friction between the inner face of the spring and the outer face of the shank causes the tightening of the spring around the shank, in other words, in the direction from without to within.

This function of the spring, considered in connection with the cup engaging the outer surface of the spring, will cause a movement of the spring in the direction from the inner face of the cup. In other words, there will be practical y no friction or a lessened frio tion between the inner surface of the cup and the outer surface of the spring at the time when the nut or bolt is turned in the direction in which the coiled spring is wound.

lVhen this operation is reversed and the belt or nut is turned in the direction opposite to that in which the coiled spring is wound, the lower sharpened end of the spring, will, so-to-speak, imbed or dig itself into the face of the cup and cause the stopping of the spring against rotation while the shank is turned. In consequence thereof, the friction between the shank and the coiled spring is lessened or eliminated. .On the other hand, friction is created between the inner face of the cup and the outer face .of the spring. In this manner the friction created between the outer face of the spring, and inner face of the cup, will cause thespring and cup to stand still, while the nut or bolt is permitted to freely turn in the direction opposite to that in which the spring is wound, there being no friction between the inner spring face and the shank. Thus, the loosening of the nut and eventually the subsequent loosening of the cup is accomplished, whereafter the article may be readily removed from below the cup.

The above description applies to the constructions shown in Figures 1, 2, 9 and 10.

The same or similar function applies to the construction shown in Figures 5, 6 and 8, with the difference that the spring is not lodged in a cup. In all other respects the function of the spring in conjunction with the shank remains identical.

In order that the above assertion be made clear, I might repeat that in the event the nut is turned in the direction in which the spring is'wound, the latter will be drawn together by the friction between the shank and the inner face of the spring. When the bolt or nut is again turned in opposite direction, the lower sharpened end of the spring digs itself, so-to-speak, into the article clamped, and permits the spring to loosen itself from the shank portion of either the nut or bolt, while allowing the nut or bolt to be readily loosened until the spring itself becomes loose enough so that the article clamped thereunder may be removed.

Particular attention is called to the construction shown in Figures 1, 2 and 9, and especially the latter figure, where a complete unit is formed between the nut and cup with the spring enclosed by both. The entire combination may be handled as one unit and attached to or detached from a bolt or screw as such unit. The function of the spring is identical in all forms shown, i. e., when the nut or bolt provided with a cylindrical. shank portion is turned forcibly in the direction in which the spring is coiled, the spring, having tightened itself around the shank portion, will travel with the nut or bolt. When however, the nut or bolt is forcibly turned in opposite direction to that in which the spring is wound, the spring will remain stationary while it loosens itself from the shank member until the entire device is loosened sufficiently to remove the article clamped thereby.

It is obvious that this device is applicable for fastening articles in the electric field where wires, cables and terminals transmitted current to light, power or ignition devices are depending upon constant and positive contact. Especially in connection with aeroplanes, automobiles, railroads and machinery and devices sub ected to extreme shocks, or vibrations, my device will find widest use.

While I have shown certain specific forms of my invention, be it understood that variations and changes in design and modifications may be made to meet various conditions. In the drawings there are shown devices with round coil springs. Those springs maybe made of various sections, as for instance, square or flat for heavy duty service,

while the principle of operation remains the same.

Having thus described my invention, I claim 1. In a binding-post comprising a stationary screw-stud protruding from a terminalrest and a revolvable nut-member havin a reduced extension, a coil-spring surrounding the said screw-stud, the said coilpring having at'least two turns wound in a'direction opposite to the direction of the threadsof said screw-stud, said spring being slightly tapered and placed with its smaller end around said reduced extension of the nut-member in such manner as to grip the sides of said extension, and its other end engaging a member resting on the. terminal to be fastened.

7 2,111 binding-post comprising a stationary screw-stud protruding from a terminalrest and a revolvable nut-member having a rediiiied extension, a coil-spring surrounding said screw-stud, said coil-spring having at least two turns woundin a direction opposite to the direction oftlie threads of said scre\v stud, cup-shaped member below said spring, said spring being slightly tapered and placed with its smaller end tightly engaged around said reduced, extension of the nut-member and with itslarger end entered in said cupshaped member, said cup-shaped member being forced by the tension of said spring in holding engagementwith the terminal to be fastened.

3. For engagement with a screw-stud protruding from a terminal-rest, a binding member comprising a nut having a reduced shankeXtension, an upwardly tapered coil-spring, one end of said coilsp'ring being disposed in constricted gripping engagement about said shank-extension, and a flat bottomed cupshaped member into which the other end of said spring is snugly fitted, and said cupshaped member having a bottom friction-surface adapted to grip the terminal to be fa stened. V Y

g 4. For engagement with a screw-stud protrnding from a terminal-rest, a binding menaber comprising a nut having a reduced shankextension, an upwardly tapered coil-spring having at least two turns wound in a direction opposite to the direction of the threads of the screw-stud, the upper end of said coilspring beingdisp'osed in constricted engagement about saidshank extension, and a cupshaped member into which the lower end of said spring is snugly fitted, said cup-shaped member being adapted to grip the terminal to be fastened.

5. In a binding-post, a nut-member for engagement with a screw-stud protruding from a terminal-rest, said nut-member having a reduced shank at its under side, an upwardly tapered multiturn coil-spring with its upper end in constricted gripping engagement with said reduced shank of said nut-member, and said coil-springhaving fiat bottomed means at its lower end for gripping the terminal to be fastened.

6. Locking means for screw or bolt-devices for fastening articles comprising a threaded stationary member, a nut-member engaging the latter and having a reduced shank-extension, an expansion coil-spring wound in a direction opposite to the direction of the threads of said stationary member, one end of which grippingly surrounds the said shankextension of said nut-member and a centrally perforated cup-shaped member tightly surrounding the other end of said expansioncoil-spring and adapted to grip the article to be fastened.

7 Locking means for screw or bolt devices for fastening articles, comprising a threaded stationary member, a nut-member engaging the latter and having a reduced shank-extension, and an eXpansion-coil-spring wound in a direction opposite to the direction of the threads of said stationary member, one end of which grips said shank-extension and the other end of which is provided with means for frictionally gripping the article to be fastened.

8. In combination with a turnable screwthreaded fastening device having a smooth cylindrical portion, a tapered coil-spring, the small end of said spring being disposed in constricted gripping engagement about the smooth cylindrical portion of said fastening device, and the opposite end of said spring be ing adapted to thrust toward means to be fastened by the device.

9. In combination with a turnable screwthreaded fastening device having a smooth cylindrical portion, a tapered coil-spring, the small end of said spring being disposed in constricted gripping engagement about thesmooth cylindrical portion of said fastening device, the convolutions of said spring being pitched in a direction opposite to the unscrewing direction of rotation of said fastening device, whereby unscrewing movement of the device tends to more tightly constrict the small end of said spring in gripping relation to the fastening device, and the opposite end of said spring being adapted to thrust toward means to be fastened by the device.

Signed at New York in the county of New York and State of New York this 31st day of. December A. D. 1927.

ADOLF SCHNEIDER.