Патент USA US2136019код для вставки
NOV. 8, 1938'; v A. PFAU 2,136,019 WHIPPING ROLLER COASTER Filed Oct. 17. 1936 5 (/2 [3/7 ww/s/v 727R ANTON ‘PF-A U _ TERA/E3 2,136,019’ Patented Nov. 8, 1938 UNITED‘ STATES PATENT OFFICE Anton Pfau, Portland, Oreg. Application October 17, 1936, Serial No. 106,146 1 Claim. (Cl. 280-8101) Experience has shown that roller_coasters, the rear wheel supports of which are secured against movement, are subject to being upset and over ' ferred form of embodiment by which the inven tion may be realized,‘ and in which: Figure l is a perspective view of a roller coaster embodying the principles of my invention. , turned when the user thereof makes a sharp turn ' Figure 2 is a sectional, front View of the coaster 5 while traveling at a reasonable rate of speed. ' shown in Figure l, graphically pointing out the I) Furthermore, roller coasters embodying the pres ently known principles of construction have limited maneuverability and require considerable space for making a complete turn. It is within the contemplation of my invention to provide a "10 coaster which eliminates the foregoing objections. By incorporating the construction embodying the principles of my invention, it is possible to use the coaster not only as a means of coasting , down steep grades, but also for the purpose of “whipping” the rear of the coaster by a suddenv turn of the steering mechanism, thus providing an added thrill to the user of a coaster embodying my invention. It is obvious that the extent of 20 the are which the rear of the coaster will make in its “whipping” movement is directly propor tional to the speed of the coaster and the degree of the turn made by the front end of the coaster. Experience has indicated that it is possible to 25 make several loops with a coaster embodying the principles of my invention without upsetting the coaster during its travels. Furthermore, less space is needed in turning a coaster embodying my invention. 30 One of the objects of my invention is to pro vide a roller coaster possessing increased maneu verability. ' Another object of my invention is to provide a roller coaster which possesses characteristics that 35 insure against its being upset or overturned when the user thereof makes a sharp turn while travel ing at great speed. A still further object of the invention is to pro vide a roller coaster having a low center of grav 40 ity. Another object of the invention is to provide a roller coaster, the front axle of which is braced to insure against shimmying of the steering mechanism, while at the same time, providing a 45 resilient assembly for the steering mechanism of the coaster. 0 Another object of the invention is to provide a coaster which is simple and durable in construc tion, which is inexpensive to manufacture and to 50 maintain and which is attractive in appearance. The invention is directed to other objects and possesses other features of advantage, a full understanding of which will become readily ap parent from the following description and the ac 55 companying drawing which illustrates the pre details of construction of the steering mechanism. Figure 3 is a sectional view, taken on line 3-3 of Figure 2 looking in the direction indicated, showing the manner in which the wheel and axle ‘51o supports are joined. I Figure 4 is a sectional, side view, taken on line 4-—4 of Figure 2 looking in the direction indicated, which also shows the details of construction of the front end of the coaster embodying the prin ciples of my invention. Figure 5 is a fragmentary, plan view, taken on line 5-5 of Figure 2 looking in the direction indi cated, showing the bracing members for the front 20 axle assembly. Figure 6 is an end view, taken on line 6-6 of Figure 1 looking in the direction indicated, show ing the manner in which the braking members are retained against the side of the coaster em 25 bodying the principles of my invention. Figure '1 is a side view of one of'the rear wheels embodying the principles of my inven tion. Like reference characters are employed to in dicate like parts in the several views shown in 30 the accompanying drawing. An inspection of Figure 1 discloses a roller coaster having a top II], which may be made of any desirable material and of any desirable di mensions. A front axle I2 has a pair of wheels 35 II journaled thereto. An axle brace, having arms I3, I 3A and I1 and top I4 is made of one piece of material as will be seen in Figure 5. This brace may be made of any material, but preference is given to a material which has some 40 resiliency. Arms I3 and I3A are disposed in opposite relation to each .other, and arm I1 is disposed at right angles to arms I3 and I3A. In Figure 2, it will be seen that arms I3 and HA extend downwardly from the center portion I4, and each have a down turned portion I5 which are secured in any desirable manner to axle I2. Arm I'l incorporates a sharp bend I‘IA, as shown in Figure 4, and is also secured to axle I2 in any desirable manner. 50 In order to add greater stability to the front axle and in order to offer a bearing surface to r the wheels I I, another brace member I8 is trans versely disposed with relation to axle I2 and has at each end thereof upturned portions I9 which 55 2 2,136,019 are secured to the axle in any desirable manner. In order to prevent any friction between down turned portions I5 and upturned portions I9 and to provide a stable yet resilient front axle as sembly, the upturned portions I9 are clinched against the upturned portion l5, as shown at 20 in Figures 3 and 4. By this construction, the front axle is braced against any transverse or rearward thrusts while, at the same time, there 10 is provided the necessary resiliency for the front axle assembly. A wearing washer 25 is secured in any desirable manner to the underside of the top I0 and is adapted to contact the center portion I4 of the tion of the rear wheels 26, but also the pivoting of the frame 21 to which the rear wheel 26 is journaled. The rear wheel assembly is secured to the top ID through a plurality of bolts 29 and nuts 30. 5 A pair of brakes are secured to the sides of top Ill. The description of one brake will su?‘ice since both brakes are constructed in the same manner. A bar 32 extends transversely of the top I0, and a clamp 33 secures the bar to the 10 underside OI the frame I0. Brake members 3| are pivoted with respect to the bar 32. In order to prevent the brake members 3| from contact ing the road surface at all times, a spring 34 is placed between two washers and tensioned 15 against the side of the brake member 3I by nut 35 threaded upon bar 32. front end of top I 0, as shown in Figure 4. A The invention has been described in connec steering arm 2| also has an elongated opening tion with a speci?c illustrated embodiment dis— therethrough which coincides with elongated closing a de?nite arrangement of parts. How 20, openings I6, when the steering arm 2! is posi-' ever, it will be understood that changes may be tioned at the front portion of the top I 6. The made in the elements and in the arrangements of center portion I4 and steering arm 2| are co them without departing from the spirit of this operatively joined to each other by bolt 23 which invention. ' passes through the elongated openings in each Having thus described my invention I 25 ofthese members and is retained therein by nut claim as new and upon which I desire towhat secure 24. A rope 22 may be secured to the ends of the Letters Patent is: 7 steering arm 2|. 15 bracing member. Elongated openings I 6 are registerably disposed through the center portion I4 of the bracing member, the washer and the 25' The rear wheels’ construction may best be seen in Figure 7 which shows one of the rear Wheels 26 journaled within one of the frames 27. The frame 21 is‘ pivoted on a caster pivot 28, the con struction of which is not shown. It is well to point out that any type of bearing may be in 135 serted within the caster pivot, although a ball bearing is preferred. Theimportant feature of this construction is to permit not only the rota Means for bracing the front axle of a roller coaster of conventional design against transverse and rearward thrusts comprising a unitary axle 30 brace having a top portion and three arms ex tending downwardly from said top portion, said arms being joined to the axle, and a second axle brace positioned transversely of and on the, under side of and joined to the axle. 35 ANTON PFAU.