US787151A - Brake. - Google Patents

Description

No. 787,151. PATENTED APR.11, 1905. 1:". DAVIGNON.

BRAKE,

APPLICATION FILED 1330.30. 1904.

2 s HEBT 1.

110.787,151. PATENTBD APR.11, 1905. F. DAVIGNON.

BRAKE.

A PPLIGATION FILED DEG, 30. 1904.

2 SHEETS-SHEET 2.

NVENTR Home] cla FHA NtOlS DAVIGNON. OF SCHlNlCC'lHDY, NEW' YORK, ASSlHNOR OF Patented April 11, 1905.

@enten ONE- llLF TO AUGUSTUS l'lERA'lH, OF StlllfNECrlADY, NEW' YORK.

BRAKE.

SPECIFICATION forming part of Letters Patent No, 787,151, dated April 11, 1905.

Application led December 30, 1904. Serial No. 238,975.

le it known that l. Fnaseots DavIoNoN, a citizen ot the United States, residingl at Schenectady, in the county ot' Schenectady and State ot New York. have invented certain new and uset'ul Improvements in Brakes; and l do hereby declare that the 'following is a full, clear, and exact description ot thc same, reference beine' had to the annexed drawings, making' a part ot' this specilication, and to the letters ot ret'erence marked thereon.

The present invention has tor its object to provide a brake toi-cars or other like vehicles in which the brake-shoes are adapted to engage the wheels ot the vehiclcand rails ot' the track. Yl`he brake-shoes are suitably connected to turnbuckles or other like devices and also connectingl with suitable mechanism for operating the brakes, whereby the pressure ot the shoes upon the wheels and rails may be regulated as desired through the medium ot' the turnlnickles. thereby increasing,` the etliciency ot the brake and securing' a pertect action thereot', the adjustment of the shoes torcine the weight ot the car to come on the railshoes. thereby releasingl the wheels ot' the weight to a `great extent and preventing "skidding" and llattening' ot' the face or tread ot' the wheels, tlms providing a brake otI many superior teaturesover the brakes in ordinary use.

'l`he invention consists ina brake constructed substantially as shown in the drawings and hereinat'ter described and claimed.

Figure l ot the drawings isa top plan view ot' a portion ot' a car-truck and wheels with my invention applied thereto; Fig. 2, a side elevation thereof: Fig. 1%, a detail end view ot a part ol the trame connected to the truck to which the lwake-o;)erating levers, chain, and pulley are connected; Fig. l, a detail plan view. partly in section, ot' the brake used in connection with the rail ot' the track, taken on the line Yl l ot' Fig. L).

ln the accompanying drawings, A represents a portion ot' the trame ot a truck, and lil the wheels thereot', connected thereto in the usual manner. and U the brake-shoes. constructed in any suitable manner found best adapted to the purpose, and D the track brakeshoe, ot any desirable t'orm and construction.

Both the brake-shoe t'or the wheels and the brake-shoe `t'or the track are subject to many changes or modilications in their details of construction, and therefore l do not wish to y be oonlined to the construction shown.

The brake-shoes (l and the, ln'ake-shoes l) tor the rail ot' the track are hinged or pivotally connected to tnrnlnlckles IC F, respectively, or similar devices that will take up or lengthen or slierten the connection between the brake-shoes and the ends ot' the arms fr may be employed in place ot' the turnbuckles herein shown and described. The arms /l are pivoted at their upper ends to the ends otI conuectiug-rods and in turn these connectingrods are suitably pivoted to the ends ot' levers Ii. 'lfhearmsf/ have connected thereto a coiled or other torni otl spring (ir, so that the arms will be drawn back to their normal position when the brake mechanism is released.

'lhe levers li are pivotally connected near their outer ends to suitable `supports c, which supports are suitably secured to a t'rame l., extending above the truck-trame A, and said truck-trame has connected thereto suitable clips rl, to which the upper ends ot' pitmanrods .l are pivoted` the lower ends ot said rods being" pivoted to the outer ends ot the arms The inner ends o t the levers li are connected by a pivoted link ff, and to this lilik is connected one end ol a suitable chain or other suitable connection Lwhich connection passes over a grooved pulley f upon the upper side ot' the traine l, and the opposite end ol said chain or connection engages a pivoted lever M, (shown in Fig'. l ot thedrawings,)and connected to the opposite end ol the lever is an operating-rod N, which is o l such length as to extend within convenient reach ol the brakeman or the person ,lesie'ned to operate the brakes.

The brake-shoes l), which are adapted to bear upon the rails ot' the track, are guided in their vertical movement and prevented trom lateral movement by grooved guards l'l,which depend from the truck-trame to which the guards are connected, thereby securing; a perfect operation of the brake-shoes upon the l rails of the track. l

The brake-shoes C are pivotally connected to hangers g, which are in turn pivoted to the truck-frame A, whereby the shoes are held more securely in position and the strain removed from the turnbuckles and preventing the shoes from swaying laterally.

The brake-shoe proper which comes in contact with the rail of the track is indicated at D, and O the bracket to which the shoe is connected; but as one is an essential part of the other I will call them both the brake-shoe in any further reference thereto, and in the same manner I shall refer to the brake-shoes, although the shoe proper is connected to a support in the usual manner.

The turnbuckles E and F are of the usual construction and are provided with stop-pins /L to maintain the turnbuckle in place when brake is set. `The turn buckles when properly adjusted will bring' the brake-shoes in position, so that When the brake is operated the shoes Will bear with the required pressure against the Wheels and also the rails of the track, the operation of the brakes being secured through the medium of the rod N, the lever connection M, and the chain L. The levers K when acted upon through the mechanism above described will cause the rods to press down upon the arms a, and the arms being connected Withthe brake-shoes will cause the same to be forced against the Wheels and rails With the required pressure to secure the desired result.

Through the medium of the turnbuckles the brake-shoes may be regulated or adjusted to bear against the Wheels and rails With any desired degree of pressure and equal or unequal pressure, as found desirable and as circumstances may require.

The setting of the brake-shoes with regard to the Wheels and the tracks through the medium of the turnbuckles will produce an efflcient brake without flattening the face or tread of the Wheels. The means also ernployed for operating' the brakes are both sim ple and durable and effective in their purpose in bringing the brake-shoes in a position to operate, and the strength and durability of l the operating parts materially enhances the value of brakes of this character.

It is evident that many modifications and changes may be resorted to Without in any manner departing from the essential features of the invention, and any such changes may be made as Would be considered as coming Within ordinary mechanical judgment and skill.

Having now fully described my invention, What I claim as new, and desire to secure by Letters Patent, is-

l. In a brake, a brake-shoe pivotally supported from a suitable frame, a turnbuckle pivotally connecting' therewith and pivotally connecting with a pivoted arm and suitable means for operating the shoe through the medium of mechanism connecting with the arm, substantially as and for the purpose described.

2. In a brake, a brake-shoe adapted to bear against the wheel of the Vehicle, and a shoe adapted to bear against the rail of the track, pivoted arms connecting with the operating mechanism, and turnbuckles pivotally connecting the several brake-shoes and pivotally connecting With the pivoted arms, substantially as and for the purpose specied.

3. In a brake, spring-actuated arms and a pivoted connecting-rod to which the arms are pivotally connected, suitable brake-shoes, and turnbuckles pivotally connecting the shoes with the pivoted arms, substantially as and for the purpose set forth.

4. In a car-brake, depending pivoted connecting-rods and suitable mechanism for operating them, depending pivoted pitman-rods, arms pivotally connecting the pivoted connecting-rods with the pitman-rods, said arms being spring-actuated, pivotally-depending brake-shoes for the Wheels of the vehicle and [11S FRANCOIS DAVIGNON.

mark Witnesses:

WM. DEWEY LoUoKs, JOHN J. Balans.

l brake-shoes for the rails of the track, and

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