US 1070168 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
C. A. NORDLNG.
APPLICATION FILED AUG. 23, 1912./
x 1,076,168, Patented Aug. 12,1913.
' SKATE. I APPLIOATION FILED AUG. 23",'1912. 1 070,1 68, Patented Aug. 12, 1913.
2 SHEETS-SHEET 2..
" maw/l nutren isrnrns rafrnu'r ernten- CARLESTA. NORDLING, F SUISUN, CALIFORNIA.' i
Specification of Letters Patent.
Patented ug. 12,1913.
Application tiled August 23, 1912. Serial No. 716,688A
- ing .the necessitygof excessive excl-tionen the -pant of the skater.
Another object'of the Ainvention is'the provision of\ askate in'which the wheels thereof w'ill'beforwardlymotated by foot leverage ofut-he skater,l thus avoiding the v lifting of 'the skate from the ground or the draggingv of' the same thereoven A further obj ect-of the' invention is the provision ofa-slatewhioh is simple-iu construction, xcapable of.y ther production of high 'speed and 4that may be manufactured ata minimum expense.v
Further objects will be in'part obvious and inrpart hereinafter pointed out.
Theinvention accordinglyconsists in thel `'construction of features, combination of elements and arrangement of parts which will be exemplified in the# structure hereinafter set forth, and the scope-of the application offwhichvfwillbedndicated in the following claims;`
Inithe drawings Figure' 1 is a side elevation of arskateconstructed in accordancetlieparts in shifted' position.'- Fig. 5 is asectionalview on=the line 5-5 of Fig. 1.
Similar reference lcharacters indicate corresponding parts throughout the several views 'in' the drawings.
Referring. to the drawings by'numerals the-skatecomprises a frame including side bars Ylo'providedv with forwardly converging ends `11 Ainfwhich is mounted a front axle 12,v while' intherear ends ofthe bars is mounted a -rear axle 13,to which is Afixed inany suitable manner the -hub 14 of a rear ground wheel 15 -and journaledrupon the tfront. axle-12 is the -hub=16 of a front ground iwheel 17 -thef wheels being, provided with suitablepneumatic, cushionedy or solid tires 1S, forming resilient treads therefor.I
V Arranged betweeny the front and rear ground wheels 15 and'17 within the frame is a foot support comprising. a basev plate 19 formed at its rear end with an upstand- :ing-heel abutment -plate 20, whileatr the -toe' L portion of the base plate are formedlverticall 'posts 21. to the'upper ends of which are pivoted links 22, the-same beingy connected to front forks 23- by means of'pivots 24C. The forks` Q3 at their forward ends are loosely engaged with thefront laxle/1Q# and: 70 -v ltheir rear endsare provided-with down :wardlycurvedextensions 25 which are-com nected with theheel abutment platev20 by means ofa pivot 26E Thus,in.this manner,
the foot support will be Vheld suspended '75;-
from the front forks for receiving thefoot of the user or operator of theskate.v
Engagingthe pivot 26- are earsQ? of a forwardly nichned rocking footstirrup. or
pedal QS, whichengages the\t0e portion of 80 the.v foot of the user'or' operator of the skate, the stirrup-being formed with verticall side uprights or extensions-29 having ixed=there to a fastening strap 30 provided with the usual buckle 31 whereby the said svtrap'may 85 be adjustably secured about the legof the user or 'operatorl at a point below the calf of the leg.
Arranged forwardly'of the foot'support and engaged in the side bars 10 ofthe frame 90 is a cross brace 32 whichrigidly unites the side bars and serves as a pivot for a brake member 33 adapted to frictionally engage the-tire 18 on the front wheel 17 for the braking of the skate when it is desired to minimize the speed of travel thereof or for bringing the skate `to a standstill. Connected tothe braking member-33 is a pull cord S4 the latter being-extended upwardly and is trained through a guide eye 35 mounted in one side extension 29 of'thestirrup: or pedal near the upper end thereof and this pull cord is adapted to be engaged by the hand of the operator or user when it is desired to apply the brakemember. 105 Surrounding .the rear aXle 13 between the hub'lll of the-rear wheel'l and-the side bar 10 adjacent thereto of the-frame lis a loose sleeve 36 to which is xeda rack gear 37 and also one end of a winding and unwinding'llo spring 38 the opposite end of which is fixed to a holding pin 39 mounted in the side bar of the frame adjacent thereto.
Formed at the inner end of the sleeve 36 is a half-clutch 40 with which is adapted to engage a companion half-clutch 41, the latter being slidably keyed upon tbe rear axle 13 between said sleeve and the hub 14 of the rear ground Wheel, the half-clutch 41 being normally held in locking engagement with the halfeclutch 40 on the sleeve 36 by means of; coiled expansion spring 42 which surrounds the axle 13 between the half-clutch 41 and the hub of the rear wheel 15. Thus, in this manner, the sleeve will be sustained locked to the rear axle when the sleeve is being rotated in one direction under the tension vof the spring 38 after the winding of the latter, but when the s ring is vunwound the wheel is free for rotation independently #of the sleeve, thus avoiding the impeding of the forward travel of the skate.
Connected with the pivot 24 mounted in the fork 23 are rearwardly extending downwardly bowed actuating arms 43, the same being provided in their rearmost end portions with elongated slots 44 accommodating the rear axle 13 and the sleeve 36 respectively at opposite sides of the rear wheel 15,
one arm 43 being formed in the uppermost.
edge wall of the slot 44 with rack teeth 45 which are adapted to engage with the rack gear 37 on the lowering of the foot support, thereby causing the spring 38 to wind, but on the raising of the said foot support at the heel thereof the rack teeth 45 will be automatically disengaged from the gear 37 and held in such position so as to be free from the said gear until the foot support has been raised to normal position so that the tension of the spring 38 previously wound will effect the rotation of the rear wheel 15 for advancing the skate in a forward direction, the rack teeth 45 on one arm 43 being automatically engaged and disengaged from the gear 37 in a manner presently described.
In the outer side of one of the arms 43 is formed a cam slot 46 in which projects a stationary lug or pin 47, the same being mounted upon one side bar 10 of the frame, the said lug or pin 47 being designed to travel in the cam slot 46 for bringing the rack 45 into and out of engagement with the pinion or rack gear 37 and when the rack 45 is meshing with the gear 37 on the lowering of the foot support the spring 38 will be come wound during the continued lowering movement of the said Vfoot support, but on the raising of the latter the spring 38 is free to unwind for driving the rear wheel. 15 for advancing forwardly the skate. It willy be seen by the raising and lowering of the foot support the Said spring 38 will be unwound and wound 'for the automatic propulsion of the skate.
Lof/dice At the forward end of the uppermost portion of the cam slot 46 is arranged a locking dog 48, the same being held protruded within the upper stretch of the cam slot 46 by means of a coiledexpansion spring 49 mounted within a suitable counter seat 50, formed in the arm 43 it being understood of course that the said arm is provided with a suitable cut-away portion 51 to accommodate the dog 48 on the retracting thereof when the lug or pin 47 rides over the same,-
so as toprevent the back playing of the pin or lug into the upper stretch of the cam slot 46, and to cause the said pin or lug to advance into the lower stretch of the said cam slot during the movement of the arm 43 when operating the skate.
It is to be understood of course that the skate is to have the requisite weight so that the treads of the wheels thereof will be oonstantly sustained in contact with the Aground and in this manner prevent the lifting of the skate during the pedal action by the operator or user for advancing the said skate. On the increasing of the ,pedal action by the user' the momentum or speed of the skate will be materially increased, there fore, itis evident that the speed of travel of the skate may be varied to suit the fancy of the skater.
From the foregoing description, taken in connection with the accompanying drawings, it is thought that the construction and operation of the invention will be clearly understood, and therefore, a more extended explanation has been omitted.
What is claimed is 1. In a roller skate, a frame, front and rear supporting wheels journaled in the frame, movable foot supporting means arranged between 'the wheels and connected with the frame, energy storing means mounted about the rear axle and connected with the frame, means surrounding the rear axle and connected with the energy storing means and adapted to lock with the rear axle on releasing the energy storing means, and means connected with the foot support and the rear axle for automatically actuating the energy storin means on movement of the foot support 1n one direction.
2. In a roller skate, a frame, front and rear supporting wheels journaled in the frame, movable foot supporting means arranged between the wheels andconnected with the frame, energy storing means mounted about the rear axle and connected with the frame,
means surrounding the rear axle and conframe and engageable with one of the connections for guiding it into and out of engagement with the rear axle.
3. In a roller skate, a frame, front and rear supporting wheels journaled in the frame, movable foot supporting means arranged between the wheels and connected -with the frame, energy storing means mounted about the'rear axle and connected with the frame, means surrounding the rear axle and connected with the energy storing means and adapted to lock with the rear axle on releasing the' energy storing means, means connected with the foot support and the rear axle for automatically actuating the energy storing means on movement of the foot support in one direction, means on the frame and engageable with one of the connections for guiding it into and out of engagement with `the rear axle, and means mounted in the last-named connection in the path of movement of the said last-named means to assure the positive movement of the said connection on raising and lowering the foot support.
4. In a skate, a frame, front and rear connected to the front fork and having slots loosely receiving the rear axle, rack teeth formed on one wall of the slot in one of said arms, a cog wheel xed to the sleeve and engageable with the rack teeth, and means carried by the frame and engageable with i the arm having the rack teeth for bringing the said rack teeth into and out of engagement with the cog gear on the raising and lowering of the foot support.
In testimony whereof I aix my signature in presence of two witnesses. A
CHARLES A. NORDLING. Witnesses:
JOSEPH I-IAwKINs, LoUIs Roos.
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Washington, D. C.