US1330140A - Hand-brake - Google Patents

Description

W. H. SAUVAGE.

HAND BRAKE.

` l APPLICATION man nam/19.1919. i v u 1,330,140. 5 .Y Patented Feb.10,1920.

y 2 SHEETS-SHEET l.

, w.'II. SAUVAGE.

HAND BRAKE.

APPLICATION FILED MAYIQIIQIQ.

Patented Feb.4 10,' 1920.

1 f UNITED sTATEs PATENT oEEIcE.-

' wILLIAM H. sAUvAGnoF FLUsI-IING., NEW Yoan, AssIGNoR To ATLANTIC IIANbL l BRAKE CORPORATION, or BUFFALO, NEW YoItK.

IIAivn-BEAKE.I i

To all whom may concern.' u

Be it known that I, WILLIAM H.k SAUVAGE,

a citizen of the United States ofv America,

residing at Flushing, Long' Island, in the county of Queens and State o'f New York, have invented! certain new and useful Im; provements in Hand-Brakes, of which the following is a'specification. l .y

This invention relates to improvements in hand brakes and more particularly to hand brakes particularly adapted for-use on railway vehicles such as freight cars, passenger cars and suburban cars. As is well known,

the transportation laws require Vehicles to'- be equipped with hand brakes as well as air brakes owing to the failure of the latterfto operate in certain emergencies. l It is, therefore, one of the'objects of the present invention to provide 'asim'ple and practical hand brake which may bev easily and quickly appliedto railway vehicles noW in use without materially changing the foundation brake rigging.

A further object is to provide a brake mechanism;l of the above character having relatively fewv parts which lmay be inexpensively manufactured and assembled.

A further object is to provide a brake mechanism of the last above mentioned l charl acter adapted to quicklyy take up'jthe slack and apply the brakes with great pressure.

A further object is tol provide a brake mech- I anism vof the last above, mentioned vcharacter which; will permit the release of the'V brakes easily and quickly ywhen desired after they have been applied.' lfurther objectf is to provide a safetyv feature whereby -ex f cessive braking'power is prevented.V

'These and otherv4 objects will appear more .clear from the description hereinafteisetf forth. In order thatthe present invention may be more fullyjunderstood, drawings are attached and form apart of the specification,

- illustrating two ofthe various possible embodiments ofthe present invention, in which similar reference characters denote corre# v n y turned between pins 20 and 21, Fig. 2, for

sponding parts.

.sary w 'fullyuriderstand thel present ini' ,Il l I substantially on the line' 3-'3 of Fig. 1.

i specification of Letters Patent. ,Patnted Feb 10, 1920 Application mea May 19, i919. serial No. 298,199. y l

- Fig. 2 is a side elevational view ofthe Fig. 4 is a view similar to Fig. 1, showing` a slight modification.

Figs. 5 and -6 are views takenon substantially the lines 5-5, 6 6, Fig. 4. l

r Referring now to the drawings in detail,

and particularly Fig. 1, `5 indicates a recv tangular casing of metal or other suitable material A provided with perforated ears :6

whereby the same maybe conveniently attached to the dashboard of a suburban carA or the end wall of a freight car,A for example. v ablecover heldin place by a-cap screw 48, in order that the parts may be-,easily 'assembledcr lubricated, or worn',parts pre# moved.` i vWithin this casingand 'at one'side thereof is provided a short shaft 10, the major por-v -tion of' which' is provided with threads-11 4while the lower end 12 is mountedin a suit 4able perforationv or bearing in the' bottom of the casing. The upper part of the' shaft is provided with a perforated hand-wheel 13 of any desired type but referably of sheet metal and provided -on y4 with hand This box is providedwith a remov' grip holes whereby the insertion of a vbar is prevented, for it will be seen thatthe mechanism hereinafter described is of such hi h gear thatto inserta bar in the wheel to o l taingreater leverage would probably exert suchl a severe strain on the foundationbrake rigging as tocause excessive braking power.

At' the opposite side-of the casing is mounted va Ysecond shaft 14, also :provided withrack teeth 15 throughout the major portion of its length and. terminating at its lower end in a bearing 19. Both these i ends 12 and 9 are'provided with washers or 4 the like 16 and pins 17 tohold the same in place. The upper partof the'shaft 14 is provided with a' handle18 'which may be with a central 'shaft 25 carryinga svtirrup or clevis 26, the lower` end of which is connected with a link 27, Fig. 2, at the end of a chain or pull rod connecting the operat-v ing mechanism with the foundation brake rigging. It will be noted that. the casing 5 isprovided with grooves 27 at its front and rear sides as shown more clearly in Fig. 3 for permitting this gear 21 to be positively guided in its up and down movements` and to stop the gear from falling to the bottom of the easing. y

ith this description of the construction in mind, a brief statement of the operation is as follows i I'Vhen it is desired to apply the brakes, the hand-wheel 13 is rotated in a direction to cause the gear 24 to move relatively upward in its guided channels, as shown by the dotted line position in Fig. 1. The teeth of the gear 24 will mesh with the worm on the shaft 14 which in this position acts as a fixed or rotatable rack, thus permitting the load carried by the gear 21 to be evenly distributed between the two shafts. In this manner a great braking power may be eX- erted upon the foundation brake rigging through this mechanism. After the brakes are applied the handle 18 is swung from its position in engagement with the lug 21 into engagement with the lug 20. This causes the slot 23 to register with the teeth of the gear 24 which gear immediately drops to the bottom position thereby releasing the application of the brakes quickly if desired.

The mechanism shown in Fig. l is substantially the same as that already described with the exception that the member ,30 corresponding to the shaft 14 is preferably held in fixed position by means of a set screw 31. Also, shaft 32, corresponding to the shaft 10, is held in raised position by means of a spring 33, seated in a suitable housing 31, under adjustable tension, by means of the screw cap 35. This spring 33 engages a washer 36 keyed or pinned at 37 to the shaft 32.

At one side of the casing 5 is an opening in which is mounted a pin 38, held in the position shown b means of a cotter Ipin 40. The-inner end of this pin 38 is adapted to coact with the end 41 of the threaded shaft 32 when, by reason of excessive pull on the gear 24, the shaft 32 will be moved downwardly against `the resistance of the spring 33. In this manner excessive braking power, through the high power gear mechanism shown, is positively prevented from being transmitted to the brake rigging.

The operation of this mec ianism is substantially the same as that above described, and it is believed that further description is unnecessary.

From the above description it will be seen that the present invention provides a simple and practical and powerful hand-brake mechanism adapted to accomplish, among others, all the objects and aims herein set forth.

IYhat I claim is:

1. In a hand brake mechanism, in combination a member adapted to be connected with the brake rigging, a normally stationary member adapted to be engaged by a rotary member, and a member lying parallel to said stationary member and coacting with the. said rotary member to move said rotary member along said stationary member to apply the brakes.

2. In a hand-brake mechanism, in combination, a stationary member having a rack portion, a rotary pinion connected with the foundation brake rigging adapted to move along said rack portion, and an actuating member provided with a worin for rotating said rotary pinion whereby it moves equally along said rack portion and' said actuating member to apply the brakes.

3. In a hand-brake mechanism, in combination, a housing provided with guides on its opposite inner surfaces, a. pinion adapted to move along said guides and connected with the foundation brake rigging, a rack member at one side withwhich said pinion is adapted to mesh and an actuating worm engaging the opposite side of said pinion whereby as said worm is rotated, said pinion will travel along said worm and rack portion.

L1. In a hand-brake mechanism, in combination, a housing provided with guides on its opposite inner surfaces, a pinion adapted to move along said guides and connected with the foundation brake rigging, a rack member at one side with which said pi-nion is adapted to mesh. an actuating worm engaging the opposite side of said pinion whereby as said worm is rotated, said pinion will travel along said worm and rack portion, and means for throwing said pinion and rack portion out of mesh whereby the brakes may be released.

In a hand-brake mechanism, in combination, a housing, a pinion mounted within said housing and adapted to move longitudinally therein, means for connecting said pinionwith the foundation brake rigging, a mutilated worm at one side of said casing normally in mesh with said pinion, an actuating worm at the opposite side of said casing in mesh with said pinion, and means for actua-ting said worm whereby said pinion will be caused to travel along said worms to apply the brakes.

6z In a hand-brake mechanism, in combination, a housing, a pinion mounted within 4said housing and adapted to move longitudimutilated worm at yone side of said casing normally in mesh with said pinion, an actuating worm at the opposite side of said casing in mesh with said pinion, means for actuating said worm whereby said pinion will be caused to travel along said worms to apply the brakes, and means adapted to rotate said mutilated worm to throw the same out of mesh with said pinion.

T. ln a hand-brake mechanism, in combiy nation. a housing provided with worms at its opposite sides, a hand-wheel for operating one of said worms, and a gear interposed between the worms adapted to travel therealong when said hand-wheel is turned to equally distribute the load therebetween.

S. In a hand-brake mechanism, in combination, a housing provided with worms at its opposite sides, means for operating one of said worms, and a gear interposed between the worms adapted to travel therealong and to equally distribute the load therebetween when said means is operated,- one of said worms being provided with a longitudinal slot, and means for turning said worm whereby said slot is brought into Zali-nement 'with said pinion to permit the pinion to drop thereby to release the brakes.

9. In a hand-brake mechanism, in combination, a casing, worm shafts at opposite sides of said easing, av pinion therebetween, means connecting said pinion with the foundation brake rigging, and a spokeless handwheel connected with one of said worm shafts whereby the worm may be rotated to cause said pinion to travel equally along both of/ said worm shafts.

10. In a hand-brake mechanism, in combination, a easing, worm shafts at opposite sides of said casing, a pinion therebetween, means connecting said pinion with the foundation brake rigging, and a hand-wheel connected with one of said worm shafts whereby the worm may be rotated to cause said pinion to travel along both of said worm shaftsone of said worm shafts being provided with a slot adapted to be throw-n into alinement with said pinion to permit the pinion to move to release the brakes.

11. In a brake mechanism, in combina tion, a rack, a rotatable-gear adapt-able to move therewith, and a second gear rotatable to coact with said rst mentioned gear, a-nd adapted to move said first mentioned gear bodily along said rac-k to apply the brakes.

12. In a brake mechanism, in combination, a rack, a rotatable gear adaptable to y move therewith and a second gear rotatable to coact with said first mentioned gear, and adapted to move said first mentioned gear bodily along said rack to apply the brakes, and said second mentioned rotatable gear being in the form of a worm and lying substantially parallel to said rack.

13, In a brake mechanism, in combination. a rack, ar rotatable member adapted to move therewith and move bodily therealong to apply the brakes. and a rotary self-locking actuating member adapted to move said rotatable member.

14. In a brake mechanism. in combination, a rack, a rotatable member adapted to move therewith and move bodily therealong to apply the brakes. and a rotary self-lockingI actuating member adapted to move said rotatable member, said last mentioned member being in the form of a worm and lying substantially parallel to said rack.

l5. In a hand-brake mechanism, in combination, a: rotatable member adapted to be connected with the foundation brake rigging, a stationary member in engagement with said rotary member. an actuating member adapted to move said rotary member along said stationary member and said actuati-ng'member to apply the brakes, and means associated with one of said parts adapted to prevent excessive braking power from being transmitted to the foundation brakerigging. n

16. In a hand-brake mechanism, 1n combination, a housing, a pinion mounted within said housing and adapted to move longitudinally therein, means for connecting" said pinion with the foundation brake rigging, a mutilated worm at one side of said casing normally in mesh with said pinion, an actuating worm at the opposite side of said casing in mesh with said pinion, means for actuating said worm whereby said pinion will be caused to travel along said worms to apply the brakes, and means adapted to prevent excessive braking power being transmitted to the foundation brake rigging.

17. i In a hand-brake mechanism, in combi nation, a casing adapted to be secured to the wall of a car, two worms within said casing and at opposite sides thereof, a pinion adapted to mesh with the teeth of said worms and to be moved therealong when one of said worms is actuated, and means adapted `to prevent excessive braking power being transmitted to the foundation brake rigging.

18. In a hand-brake mechanism, in combination, a4 casing adapted to be secured to the wall of a car, two worms within said casing and at opposite sides thereof, a pinion adapted to mesh with the teeth of said worms and to be moved there'along when one of said worms is actuated, and means adapted to prevent excessive braking power being transmitted to the foundation brake rigging, said means including` a spring yieldingly supportingthe actuated worm and i: adapted to yield when excessive load is 'ap-'-v plied thereto.

19. In a hand-brake mechanism, in combination, a casing adapted to be secured to the Wall of a car, two worms within Said cassoA 'a apted to mes `and to be moved therealong when one of said -Worms is actuated, lmeans adapted' tov prevent excessive braking power being i transmitted to thefou'ndationbrake riggin ,l said means `including a,- spring yield- .lng y supporting the 'actuated worm and v :and et. yopplonste" sides thereof), a.l pinion with the teeth of said worms adaptedt'o yield when excessive load is applied thereto,v and a stopvassocated .'vvith thelf :y

' 'cessive load` s suplporte casingA iadpted to engage with the lWorml to thereof Whe-nv exthereby.

In testimony w ereofl affix my signa-ture in thepresence of two Witnesses.

- WILLIAM H. SAUVAGE,

Witnesses: f v i CHARLES E. B. SMITH; T. lB. ,SHELDON v prevent further turnin

Images