US19192A - Kailroad-car beake - Google Patents
Kailroad-car beake Download PDFInfo
- Publication number
- US19192A US19192A US19192DA US19192A US 19192 A US19192 A US 19192A US 19192D A US19192D A US 19192DA US 19192 A US19192 A US 19192A
- Authority
- US
- United States
- Prior art keywords
- rail
- car
- shoe
- rubbers
- wheels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 description 26
- 239000005060 rubber Substances 0.000 description 26
- 238000010276 construction Methods 0.000 description 8
- 210000003371 Toes Anatomy 0.000 description 4
- 206010022114 Injury Diseases 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000000414 obstructive Effects 0.000 description 2
- 230000000750 progressive Effects 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
- B61H7/02—Scotch blocks, skids, or like track-engaging shoes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S209/00—Classifying, separating, and assorting solids
- Y10S209/901—Froth flotation; copper
Definitions
- the object of my invention is to check the rotation .of the wheels without stopping them, and arrest the motion of the car by the friction of a shoe forced upon the rail,
- R R are the rubbers and S is the shoe jointed therewith at a a.
- This shoe has a standard I) running upward through the shaft 0.
- Upon the shaft r;- is a tri-branched cam C operated by lever Z or in any suitable manner, to first force the rubbers R R against the wheels, and then press the shoe S down upon the rail.
- This elasticity is of the utmost importance in braking with a shoe upon the rail, as rigid pressure upon the rail is productive of injury to the entire 19,192, dated January 26, 1858.
- the rubber may be applied outside of the wheel, as shown at X in the drawing, if desired. And if necessary the rubbers may be applied above the axes of the wheels, these modifications requiring nothing but suitable changes of levers and rods.
- branches m and a shall engage and force the rubbers against the wheels, before branch p acts upon the shoe.
- I disclaim all combinations of shoes and rubbers for braking upon both rail and wheels, when such combinations are designed, and arranged to act, either simultaneously, or first upon the rail. I also disclaim all shoes acting rigidly upon the rail, as forming no part of my invention. I further disclaim the use of cams in applying brake rubbers.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
3 Sheets-Shea? S. GUMAER.
Car Brake.
Patented Jan 26, 1858,
AM.PHDTO-LITHO. CO. NX (OSBDRNE'S PRdRESS 3 SheetsSheet 2.
S. GUMAER.
Car Brake.
Patented Jan. 26, 1858.
3 Sheet$-Sheet. 3.
s. GUMAE R.
Car Brake.
No. 19,192. Patented Jan. 26. 1858.
AM. PHOTO-THO. C0- N.Y-(0SBRNE'S PROCESS.)
UNITED STATES PATENT OFFICE.
SAMUEL GUMAER, OF CHICAGO, ILLINOIS.
RAILROAD-CAR BRAKE.
Specification of Letters Patent No.
To all whom it may concern Be it known that I, SAMUEL GUMAER, of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Railroad-Car Brakes; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, forming part of this specification, in which- Figure 1 is a side elevation of a car truck with my improved brake attached; and Fig. 2 is a vertical longitudinal section of the same.
Similar characters of reference in the several figures denote the same part.
The object of my invention is to check the rotation .of the wheels without stopping them, and arrest the motion of the car by the friction of a shoe forced upon the rail,
my invention consisting in the peculiar combination of devices hereinafter to be set forth for effecting the operation continuously.
In the drawing F is the truck frame, A A the axles and W WV the wheels, all of ordinary construction.
R R are the rubbers and S is the shoe jointed therewith at a a. This shoe has a standard I) running upward through the shaft 0. A spring [Z incloses this standard, and being attached to both shoe and shaft draws the shoe upward when pressure is removed from it. There are also springs e 6 connecting the rubbers R R with the hangers h of the shaft 0.
Upon the shaft r;- is a tri-branched cam C operated by lever Z or in any suitable manner, to first force the rubbers R R against the wheels, and then press the shoe S down upon the rail. There is a flat spring f inside the shoe upon which the toe of the cam acts in forcing down the shoe. This gives the necessary degree of elasticity to the shoe, and renders it capable of rising over any inequality of the road, or obstruction on the rail, in the same manner as the springs of the car give an elastic bearing of the wheels upon the rail. This elasticity is of the utmost importance in braking with a shoe upon the rail, as rigid pressure upon the rail is productive of injury to the entire 19,192, dated January 26, 1858.
mechanism, and has been a great objection to this mode of arresting the motion of cars. On removing the pressure of the cam, the springs d and e lift the rubbers and shoes, the standard b serving as a guide.
The rubber may be applied outside of the wheel, as shown at X in the drawing, if desired. And if necessary the rubbers may be applied above the axes of the wheels, these modifications requiring nothing but suitable changes of levers and rods.
The branches of the cams are so constructed that branches m and a shall engage and force the rubbers against the wheels, before branch p acts upon the shoe.
By this construct-ion the velocity of rotation of the wheels is first diminished by the rubbers, and then the car is stopped by the pressure of the shoe on the rail. This progressive application of rubbers and shoe I deem important, and consider it as efiecting a better result than either a simultaneous pressure on wheels and rail, or a pressure upon the rail previous to acting upon the wheels. For the simple reason that pressure upon the rail when the train is in rapid motion is liable to throw a car from the track. The system I propose reduces the velocity of the car and then applies the arresting force to the rail, thus causing the stopping of the train without a sudden stoppage of the rotation of the wheels, or a dangerous pressure of the shoe upon the rail. In these important features of rendering the pressure on the rail elastic, and in regulatin the time of pressure .on the rail, I consi er my construction different from all others for the same purpose.
I disclaim all combinations of shoes and rubbers for braking upon both rail and wheels, when such combinations are designed, and arranged to act, either simultaneously, or first upon the rail. I also disclaim all shoes acting rigidly upon the rail, as forming no part of my invention. I further disclaim the use of cams in applying brake rubbers.
What I do claim as new and of my own invention and desire to secure by Letters.
Patent, is
The loosely hung rubbers and spring bottomed shoe connected as described in combination with the tri-branched cam, when the lower toe of the cam acts upon the signed my name before two subscribing Witspring, and the said parts are all relatively nesses.
the Wheels prior to the application of the 5 shoe to the rail, substantially as and for the purposes hereinbefore set forth.
arranged that the rubbers are applied to SAM'L GUMAER Witnesses:
GEO. PATTEN, JOHN S. HOLLINGSHEAD.
In testimony whereof, I have hereunto
Publications (1)
Publication Number | Publication Date |
---|---|
US19192A true US19192A (en) | 1858-01-26 |
Family
ID=2083117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US19192D Expired - Lifetime US19192A (en) | Kailroad-car beake |
Country Status (1)
Country | Link |
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US (1) | US19192A (en) |
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0
- US US19192D patent/US19192A/en not_active Expired - Lifetime
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