US980448A - Sleigh-knee. - Google Patents

Description

'P. A.' STENBORG. 4

SLEIGH KNEE.

. APPLIOATION FILED DEO.22,1909. A 980,448. Patented 1311.3, 1911.

BBHEETS-BHBET 1.

F. A. STENBORG.

SLEI'GH KNEE.

- APPLIGATION FILED 1120. 22.1909.

Patented Jan'. 3, 1911.

2 SHEETS-SHEET 2.

l/ll/ 111 UNITED STATES PATENT OFFICE.

FREDERICK A. STENBORG, OF WOOD RIVER, WISCONSIN.

SLEIGH-KNEE.

esoaas.

To all whom it may concern:

Be it known that I, FREDERICK A. STEN- ono, a citizen of the United States, residing at Wood River, in the county of Burnett and State of Wisconsin, have invented certain new and useful Improvements in Sleigh- Knees, of which the following is a specification.

This invention relates to certain new and useful improvements in bob sleds.

The object of my invention is to provide a sled knee whereby each runner of a bob sled is permitted a movement independent of the other runners, so that the running gear is not subjected to a strain or vracking movement in the use of the sled upon uneven surfaces.

With these and other objects in view, the present invention consists in the combination and arrangement of parts as will be hereinafter more fully described and particularly pointed out in the appended claims, it being understood that changes in the specific structure shown and described may be made within the scope of the claims without departing from the spirit of the invention.

In the drawings forming a portion of this specification, and in which like numerals of reference indicatevsimilar parts in the several views, Figure 1 shows a side elevation of a sled runner embodying my invention, Fig. 2 is an end View thereof, Fig. 3 is a top view, Fig. 4 is an enlarged detached detail disclosing the stand and connected springs, Fig. 5 shows a central sectional view of the saddle plate, Fig. 6 shows a modication of my device, Fig. 7 is a plan view of the securing foot and collar with the stand removed therefrom.

In the accompanying drawings, t-he numeral 10 designates a sled runner provided with my improved knee, which includes the securing foot 11, having the two oppositely positioned side flanges 9 provided with suitable rivet'openings, said foot being also secured to the runner by means of the bolts 13. The upper surface of this securing foot forms the riding shoulder 14 from which extends the collar 15, vsaid collar being approximately oblong and having the rounded ends, as shown in Fig. 7 of the drawings and being adapted for supporting the upstanding approximately V-shaped stand having the upper rounded bearing face 17. This stand 16 is preferably in the form of a round bar of metal firmly embedded within the Speciication of Letterslatent.

Application filed December 22, 1909.

Patented Jan. 3, 1911. Serial No.v 534,506.

foot as disclosed, and said foot is also secured to the runner by means of the bolts 13. Removably held to this stand 16 and snugly surrounding th-e collar 15 and being held in frictional contact therewith is the hollow standard 20, having the two oppositely positioned bearing shoulders 22 which are curved, and extending from these shoulders are the projected guide ears 21 arranged to be held in frictional contact with the side of the securing foot 11. The lower curved bearing shoulders 22 are arranged to rock upon the shoulder 14` the end of the standard being carried upon the collar l5.

The upper inner end of the standard 8 is slightly arched and forms a rub surface contacting with the upper end 17 of the stand 16 as shown. Upon opposite ends, the standard 20 is provided with the outstanding ears 24 which have a slot at their upper ends, and a bolt opening near their upper ends to receive the bolt 31 as disclosed. The standard is continued upward to provide the side flanges 23 through which extend the securing rivets 27. Proximal to these ears 24, I provide the lugs 28, these lugs being arranged to receive the crank bolts 29 secured by means of suitable nuts. The standard is also provided with the outwardly extending securing plates 25 and 26 through which are extended the bolts 36 and 36 and through the medium of which, the beam 5 is secured in position.

Held to the bolt 31 and projecting beyond the upper ends of the ears 24, are the springs 30. As shown in the drawings two such leaf springs 30 are disclosed which are arranged at their lower ends to contact with the stand 16.

IIeld between the flanges 23 of the st-andards 20, is the beam 5 which above is provided with the saddle plate 35, having the groove 38 the upper surface 38 of which is curved. The plate 35 is projected above in the form of the oppositely positioned ribs 37, and positioned adjacent to this transverse groove 38 are the ribs 39 between which the crank bolt 29 is held as shown. In addition to the crank bolt 29, the saddle plate 35 is secured to the beam 5 by means of the bolt 36. Secured to the runner 10 by means of suitable bolts, is the rave comprising the two securing ears 44 from which extend the brace members 43 which are continued in the stop shoulders 42 between which is held the curvedupper portion 41 of this rave. This upper curved portion 41 is arranged to be slidably held within the groove 38 of the saddle plate 35 as disclosed in the drawings.

The upper projecting ends of the leaf j springs 3() are arranged to contact with these stop shoulders 42. This construction then permits the standards 20 to rock within certain limits, the rocking movement however being against the tension of the two springs 3.0. rlhe standard 20 is held against any vertica-.l5 displacement by means of the rave, while at its lower end the standard is conined byl means oi the collar 15 and the guide ears12f1. An incident of convenience to.- this arrangement of devices for securingl a runner to a beam, isv found in that the strain incident to the sled being drawn over uneven surfaces, is eliminated, the change of position assumed by the different runners being compensated without racking theV running gear. While the springs 30 add to the eiiiciency of the device, these springs are not absolutely necessary. The interposition oi these springs between the rave and the standards however, prevent any rattling of the instrumentalities.

From the foregoing it will be seen that the standard 20 is permitted a rocking movement at its. upper end upon the upper end 17 of the stand i6 while also being permitted a rocking movement upon its lower curved bearing shoulders 22.

My device is light, neat and simple of construction, and the various parts are all readily accessible and adjustable, to their respective supporting members.

In. Fig. 6- li show a modification in which the springs 50. are held within the standard. rEhe rave is curved' and has the bracket 51 secured to the hase `52, byy means of the bolt 53. It is oi course understood that the stand is similarly embedded within the foot, but in this instance the upper ends of the arms arewelded or otherwise secured together.

It is, of cou-rse, understood that if desired the base or saddle plates can be secured to a metallic runner.

Having thus described my said invention what I claim as new anddesire to secure by United States Inet-ters Patent is:

' 1. In a device of the character' described, the combination with a runner having a reduced foot forming a supporting shoulder and a vertically disposed stand having an upper curved edge; of a hollow standard surrounding' said stand, said standard having a lower rounded bearing shoulder and an upper rubi plate, said shoulder being adapted to rest on said sup: orting shoulder of the foot and a rave to ho d said standard to said stand. v

2'. combination with a sled runner, a securing /ioot having a shoulder and a col'- lar extending therefrom, of a stand carried y by said collar, a hollow standard having two oppositely positioned curved riding edges held upon said shoulder, said standard working about said collar, springs carried by said standard and contacting with said stand, of a beam, a saddle plate carried by said beam i having a groove, and a rave carried by said runner and held within said groove.

3. In a device of the character described, the combination with a runner, of a foot secured to said runner having a shoulder from which extends a collar supporting an upstanding V-shaped stand having an upper rounded bearing end, of a hollow standard having two lower curved bearing ends arranged to ride upon said shoulder, the lower end of said standard frictionally engaging said collar, the upper end of said standard contacting with the upper end of said stand, said standard having oppositely positioned slots near the upper end, leaf springs held vwithin said standard upon opposite sides and projecting through said slots, a beam carried by said standard, a saddle plate carried by said beam, said saddle plate having a groove therein and a rave secured to said runner having an upper curved portion held within said saddle groove, said springs contacting with said rave.

et. In a device of tliecharacter described, the combination with a runner, of a foot secured to said runner having a shoulder from which extends an oblong collar supporting an approximately V-shaped upstanding stand having an upper rounded bearin end, of a hollow standard having two ower curved bearing ends arranged to rock upon said shoulder, and oppositely positioned gu-ide ears held adjacent to said securing foot, the lower end of said stand rictionally engaging said collar, the upper end of said standard contacting with the upper end of said stand, said standard having oppositely positioned slots near the upper end, leaf springs held within said standard upon opposite sides and projecting through said standard, said springs contacting with said stand, a beam carried by said standard, a saddle plate carried by said beam, and a rave secured to said runner having an upper curved portion tei-minatingr in 'oppositely positioned stop shoulders, said springs working against said stopy shoulders, said curved rave portion being held within said saddle groove.

In testimony whereof I aihx my signature, in presence of two witnesses.

FREDERICK A.. STENBORG.

VVitn-esses F. G. DAHLBERG, Tiios. Tonnnrsoia.A

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