US1940413A

US1940413A - Rivet

Info

Publication number: US1940413A
Application number: US636654A
Authority: US
Inventors: Gray Bertram Parrott
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-11-16
Filing date: 1932-10-07
Publication date: 1933-12-19
Anticipated expiration: 1950-12-19

Description

B. P. GRAY Dec. 19, 1933.

RIVET Filed Oct. 7, 1932 FIC-5.6.

FIC-3.7.

3S FIGJZ.

| VE NTOR "QA Attorncy Patented Dec. 19, 1933 UNITED STATES p RIvE'r Y Bertram Parrott Gray, Birmingham, England Application October 7,

1932, Serial No. 636,654,

and in 4Great Britain November 16, 1931 9 Claims.

This invention .relates to rivets for connecting anti-slip or anti-concussion pads to horse shoes and :has for its object to provide .a rivet which will be cheap to construct and eective in use,

1 5 and which can be secured and retained in position with greater ease than is possible with rivets of ordinary construction,`

l.to the drawing:-

Figure 1 is a 'perspective view showing .one

construction.. Y

Figure 2 is a perspective sectional view show.- ing a further construction.

VFigure 3 .is .a sectional perspective view showing a modification. Y

Figure 4 is a sectional perspective view showing a sti-ll .further modincation.

Figure 5 shows partly,i in section a still iurther modification. Y A i AFigure 8 is a .sectional lview, :of a fur-ther alterno native construction.

, Figurer'l is a sectional perspective view Eof Ya modification 'of the construction illustrated .in

Eigure l3. 1, 1 l

-8 .is a plan view showing `a horse .shoe .a5 with anti-slip. `or anti-concussion pads secured thereto -by means of rivets vaccording to .the present invention.

Figure .9 .is .a perspective view showing V-a lpad provided with a rivet according .to the present invention.

Figure 10 ',:isY a sectional view `showing the method lof vattaehmer-it betweentherivet and pad illustrated :in Eigul'e Y,9.

. ligure ll'fis a islight modication-of the 1corndruntion Villustrated in Figure 10.

Figure 12 shows a :further modification of the ."illustratedin Figure 1.0. i

Figure 13 .shows a still further modification.

In the lconstruction illustrated .in Figure 1 .e110 the Rivet rl. is olf `,tubular fform, .split `longitudinally at 2 :and formed from -a metal blank rolled cylindrical form, one end 3 being expanded into 11n .inverted .part conical head.

, In Figure 2 .the rivet illustrated in Figure 1 .as 'applied to connect :an anti-slip or anti-conrussian psd A410i rubber to a horse shoe 5, the

nivet being .inserted through holes in the members to due connected, .and the conical head porliion -3 fengagirg 'a .correspondingly `formed poritinnnf the hole im the `shoe 15, whilst the othei and 'of the rivet is expanded to connect the parts ami prevent thegpad 4 becoming detached.

-Therivet .may `beexpaznded by a 4suitable tool,

F and if 'desired the'expanded end initially formed i on Ethernet may be .inserted in A:one pad 4, `the rivet being expanded into the hole in the shoe 5.

In the construction illustrated in Figure 3 a slightly modified form of rivetY is used to connect a pad 7 to a horse shoe 8 this rivet 'having an expanded end portion '9 o'f` length corre- 60 sponding with the thickness .of the pad '7, and a number of outwardly distorted tongues of metal l0 are provided in this end-9 to .engage or bite into the material of the pad. 'These tongues are formed by partially severing portions of the rivet such Vas by forming inverted U shaped cuts at suitable positions, the partially severed tongues being then distorted outwardlyas shown in section in Figure 3. The .rivet may .be securedfin the pad prior to the Vapplication to the shoe, and the end 11. of the rivet may Vthen he" expanded into 'the hole in the shoe to secure the rivet in position ,and connect the .pad to the shoe.

In Figure 4 is illustrated .a slight modication 75 of the construction illustrated lin Figure 32, fthe expanded ends 12Vof the rivet 1'3 being stepped or shouldered by using a correspondingly Ashaped expanding tool when forming the head upon one end of the -rivetand when expanding the other S0 `end -of the rivet to connect Ythe members.

In the construction illustrated .Figure `5 .the rivet is provided with .a part .con-.ical portion la aof length equal .to the thickness of the pad 7, and with a cylindrical portionY l5 passed 85 througha corresponding .holle in .the shoe 8, -the end l0 being provided with teeth .or .projections 16 adapted to bite into the 4material .of the pad and improve the grip thereon. In 'this construction'the teeth -16 areiorrned by displacing .some 90 of the metal of the end .14 of the rivet :outwardly in the form of barbs, and whenconnectedin Ithe `pad these teeth vor barbs .engage in the material thereof and assist in .preventing Vthe rivet pulling through the relatively .flexible material .of

the pad.

In this construction the rivet is retained .in position-by ianging the end over the .shoe as at 17.

In the modification illustrated in Figure 6 the 1-070 members 'land 3 are-connected by .a .tubular rivet .18 of cylindrical forni fand split longitudinally Yas. at 19, the rivet being expanded or langed at each end as at 20 to engage over .the edge `of the hole through which the rivet is 105 passed. The ends of the rivet tare serrated or castellated by cutting away Aportions 21 in .order that the Vflanging over operation .may .be facilitated. The members r(and 8 may be recessed adjacent kthe .aperture Vfor .the rivet so that the end of the rivet when flanged over is substantially flush with the surface of the member as illustrated in Figure 6.

In the modification illustrated in Figure '7 a rivet of square or rectangular section is used for connecting the members 7 and 8, this rivet 22 being of similar general construction to that illustrated in Figure 3 with an expanded portion 23 and outwardly distorted tongues of n'ietal 24 for engagement in the pad '7, and an expanded end 25 to retain the rivet in position and to connect the members. In this construction the rivet is square or rectangular but may be of any non-circular section, `being formed from a strip or blank of metal by a suitable pressing or stamping operation.

With a rivet of non-circular section a single rivet can be used to connect two or more inembers and at the same time prevent relative rotation or twisting movement between them when in use. When the members are connected by a single rivet of circular section there is a possibility that the members so connected may twist out of position during use, but with a rivet Vsuch as 22 the members may be connected at any selected angle after which the rivet secures them against angular or other movement.

In Figure 8 is illustrated a horse shoe 26 having anti-slipping or anti-concussion pads 27 each secured by means of a tubular rivet 28 in accordance with the present invention.

v In Figure 9 an anti-slipping pad or stud 29 is provided with an attachment rivet 30 by means of which the pad or stud may be secured to the horse shoe, and the projecting portion of this rivet is screw threaded externally for engagement with an internally screw threaded hole in the shoe.

In Figure 10 is illustrated one method of attaching the rivet to the pad or stud 29 by expanding the end 31and by providing outwardly distorted teeth or barbs 32 on this end as described with reference to the construction illustrated in Figure 5.

In the alternative construction illustrated in Figure 11 the rivet is provided with an expanded end 33 in which are formed outwardly distorted teeth 34 formed as described with reference to the tongues 10 in the construction illustrated in Figure 3.

In the construction illustrated in Figure 12 the projecting portion 35 of the rivet is cylindrical, with a smooth external surface, and a transverse pin 36 is secured in this portion as shown, the ends of the pin projecting slightly beyond the outer surface.

These projecting ends are adapted for engagement with the internal screw thread 37 in the hole in the horse shoe 38 and the pad 39 in which is mounted the enlarged end 40 of the rivet is attached to the shoe by screwing the portion 35 of the rivet into the screw thread 37. Two or more transverse pins may be provided if necessary, at spaced points along the length of the portion 35. This is considerably cheaper than screw threading the projecting portion as in the construction shown in Figures 9 to l1.

In the construction illustrated in Figure 13 the rivet is formed initially with an expanded end 41 and a projecting portion 42, this latter portion being cylindrical prior to the application of the rivet to the shoe.

The expanded end is mounted in the pad 39, and to secure the latter to the shoe 43, the projecting portion 42 of the rivet is inserted in a cylindrical hole in the shoe, a tapered plug 44 being subsequently driven or forced into the end of the portion 42 to the position illustrated in Figure 13.

The plug 44 distorts the end of the rivet and slightly expands the hole in the shoe, the metal of the rivet being forced into intimate contact with the metal of the shoe, so that the pad and the shoe are permanently secured together.

'I-he rivets illustrated in Figures 1 to 6 and 13 are of circular section, but they may be of square or any other non-circular section as illustrated in Figure 7.

When rivets according to the present invention are applied for connecting an anti-slip or anti-concussion pad to a horse shoe the end of 'the rivet located within the material of the pad will wear down at approximately the same rate as the pad, and the attachment between the pad and the shoe decreases only slightly with wear and is effective throughout the whole life of the pad.

In addition the rivet forms a metal stud embedded in the pad and consequently improves the gripping properties of the pad, whilst by forming the rivet of hollow construction road grit or other material enters the centre of the rivet and forms an additional gripping or antislip means.

Further advantages of the rivets according to the present invention are that the rivet is cheap to construct initially, is easily applied to connect the members, is relatively of light weight compared with solid rivets as commonly used, and when formed by rolling or pressing from a blank of material, iseasily and cheaply manufactured.

What I claim then iszv 1. In combination with an anti-slip or anticoncussion pad, a tubular rivet for connecting said pad to a horse shoe, said rivet being split continuously from one end to the other, and having one end engaging with the pad, said end being open and exposed at the underside of the pad to improve the anti-slip properties and the other end of said rivet projecting from the pad for engaging the shoe.

2. In combination with an anti-slip or anticoncussion pad, a tubular rivet for connecting said pad to a horse shoe, said rivet being split continuously from one end to the other and having an expanded end engaging with the pad said end being open and exposed at the underside of the pad to improve the anti-slip properties and a further expanded portion at the other end for engaging with the shoe.

3. In combination with an anti-slipor anticoncussion pad, a tubular rivet for connecting said pad to a horse shoe, said rivet having an expanded end for engaging with the pad, said end being open and exposed at the underside of the pad to improve the anti-slip properties, lugs forced from the surface of said expanded end to project therefrom and to engage in the body of the pad, and the other end of said rivet projecting from the pad for engaging the shoe.

4. In combination with an anti-slip oranticoncussion pad, a tbular rivet for connecting said pad to a horse shoe, said rivet being split longitudinally, from one end to the other, and having an expanded end engaging with the pad, said end being open and exposed at the underside of the pad to improve the anti-slip properties, portions forced from the surface of said expanded end to project therefrom and to engage inthe material of the pad and an expanded portion at the other end of the rivet for engaging the shoe.

5. In combination with an anti-slip or anticoncussion pad, a tubular rivet for .connecting said pad to a horse shoe, said rivet having an expanded end engaging with the pad, said endV being open and exposed at the underside of the pad to improve the anti-slip properties, and an externally screw threaded portion of said rivet projecting from said pad for engaging in the shoe.

6. In combination with an anti-slip or anticoncussion pad, a tubular rivet for connecting said pad to a horse shoe, said rivet having an expanded end engaging with the pad, said end being open and exposed at the underside of the pad to improve the anti-slip properties, lugs forced from the surface of said expanded end to project therefrom and to engage in the material of the pad, said lugs comprising tongues of metal integral with, but partially severed from, said expanded end, and an externally screw threaded portion of said rivet projecting from said pad for engaging in the shoe.

7. In combination with an anti-slip or anticoncussion pad, a tubular rivet for connecting said pad to a horse shoe, said rivet having an expanded end for engaging with the pad, said end being open andV exposed at the underside of the pad to improve the anti-slip properties, a

shank portion for engaging the shoe, and a transverse pin secured in said shank portion, the ends of said pin projecting from the surface of said shank portion for engagement with a screw threaded hole in the shoe.

8. In combination with an anti-slip or anticoncussion pad, a tubular rivet for connecting said pad to a horse shoe, said rivet having an expanded end for engaging with the pad, said end being open and exposed at the underside of the pad to improve the anti-slip properties, a shank portion for engaging the shoe, a transverse pin secured in said shank portion, the axis of said pin being inclined to the longitudinal axis of the shank portion, and the ends of said pin projecting from the surface of said shank portion for engagement with a screw threaded hole in the shoe.

9. In combination with an anti-slip or anticoncussion pad, a tubular rivet for connecting said pad to a horse shoe, said rivet having an expanded end for engaging with the pad, said end being open and exposed at the underside of the pad to improve the anti-slip properties, a shank portion for engaging the shoe, and a transverse pin secured in said shank portion, the ends of said pin projecting from the surface of said shank portion for engagement with a screw threaded hole in the shoe.

BERTRAM PARRO'I'I GRAY.