US1714621A - Gripper brake for railways - Google Patents

Gripper brake for railways Download PDF

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Publication number
US1714621A
US1714621A US3515A US851525A US1714621A US 1714621 A US1714621 A US 1714621A US 3515 A US3515 A US 3515A US 851525 A US851525 A US 851525A US 1714621 A US1714621 A US 1714621A
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US
United States
Prior art keywords
brake
rails
gripper
members
railways
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
Application number
US3515A
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English (en)
Inventor
Posentrup Heinrich
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1714621A publication Critical patent/US1714621A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
    • B61K7/02—Track brakes or retarding apparatus
    • B61K7/04—Track brakes or retarding apparatus with clamping action

Definitions

  • Fig. 1 is a longitudinal section through one of the con- 5 structional forms in which my invention may becmbodied, Fig. 1 and Fig. 1 being dia grammatic sections through the. braking mechanism and the wheel to he braked thereby.
  • Fig. 1 showing the wheel in engagement with the brake
  • Fig. 1 showing the wheel out of engagement with the brake
  • Fig. 2 is va cross-section of Fig. 1, the movable parts being shown in their working position
  • Fig. 3 shows said movable parts in position of rest
  • Fig. i is a section in the plane fig-A of v Fig. 3. i p
  • This invention relates to a gripper-brake for railways having brake-rails which may be raised and lowered. It is known that railway vehicles may be braked by pressing a pair of brake-rails or the like with a relatively great force against the tyres of the wheels. A strong braking action can in this case be obtained, if, for instance, a wedge is-pressed into a wedge-shaped opening or if a wedgeshaped opening is pressed around a wedge. If, for instance, a member 1 as shown in Fig.
  • a braking force D will be generated in horizontal direction, said fore-e D depending uponthe weight R and of the angle of the wedge.
  • the braking forces will bee omeinetfectiv as soon as the member lis lowered to the extent shown in Fig. 1
  • the action of the present gripperbrake for railways is based upon the operations as diagrammatical indicated in Figs. 1 and 1".
  • 0 andddenote'thebrakerails 0 denotes the ramp-rail, and a and 6' denote reinforcing-girders for and of said rails c d e.
  • 70 denotes triangular members I supported in pairs by transverse base-plates 1 and having each an oblique face 2', upon which the gripper g is shown in its braking position, in which its members and 'g are kept tread are lifted oif the rails for about 1 cm.
  • the lifting height will increase to about 3 cm.
  • the base-plate Z is somewhat shift'able in its longitudinal direction and its movement is limited in bothdirections by angular abutment members.
  • Fig. 2 showsthe base plate. in one of its two end-positlons, F 1g. 3 in the other.
  • the triangular members 70 have downwardly ,chrected extensmns an which are located between two parallel transverse girdersn a.
  • the grippers f and g are also located in the gap between these girders. There are shown in Fig. 1 three pairs of girders an, and there v I said wheels contact with the rails, the ramp rail 6 is loosened from the wheel tyre andare, therefore, also three pairs of grippers.
  • The. two members forming a pair are connected with one another by a bolt 0, the ends of which can slide vertically in a slot- 5 of two guide-members p, p secured to the bottom-faces of the said girders.
  • the length of the slots 3 is such that there issutficient play for the bolt 0 to follow the vertical movements of the grippers when their position changes from that in Fig. 2 to that in Fig. '3,
  • the loaded grippers now descend further with the whole
  • the members m/: appear in diifcrent positions in Figs. 2 and 3 because the base plate Z on which these parts are mounted is some what shiftable as above indicated.
  • the base plate Z In opera tive condition of the brake, according to Fig. 2, the base plate Z will be maintained inthe position as shown by means of the car wheel. If, however, the brake is in inoperative condition, as shown in Fig. 3, the plate Z will be kept inits outermost left-hand position by means of a spring (not shown).
  • the gripper-arm g is provided with an abutmentplate Vhen the brake-rails are being lifted below a car, no guide like 9 or g" is required, but if they are lifted without load, as
  • the abutment members keep the brake-rails so much off the track-rail that the cars run securely into the brake.
  • a gripper-brake for railways comprising, in combination: liftable brake-rails; grip persconsisting each of two members and having said brake-rails secured to them; a ramprail also secured to said grippers; members located laterally from the gripper arms and having each an oblique face adapted to serve as support for one of the gripper-arms; these latter being adapted to SllClG upon said oblique face and to be depressed by a car running over the brake; means carrying the 7 said lateral members, and transverse girders supporting said means; and meanspermit ting vertical movements of said grippers, sul stantially as set forth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
US3515A 1924-02-19 1925-02-11 Gripper brake for railways Expired - Lifetime US1714621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0047555 1924-02-19

Publications (1)

Publication Number Publication Date
US1714621A true US1714621A (en) 1929-05-28

Family

ID=7382476

Family Applications (1)

Application Number Title Priority Date Filing Date
US3515A Expired - Lifetime US1714621A (en) 1924-02-19 1925-02-11 Gripper brake for railways

Country Status (4)

Country Link
US (1) US1714621A (enrdf_load_stackoverflow)
FR (1) FR593050A (enrdf_load_stackoverflow)
GB (1) GB229664A (enrdf_load_stackoverflow)
NL (1) NL15816C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115593459A (zh) * 2022-10-12 2023-01-13 武汉武船重型装备工程有限责任公司（Cn） 一种顶升制动系统及水池拖车

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918329C (de) * 1952-07-17 1954-09-23 Deutsche Bundesbahn Nach dem direkten Steuerprinzip arbeitende Gleisbremse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115593459A (zh) * 2022-10-12 2023-01-13 武汉武船重型装备工程有限责任公司（Cn） 一种顶升制动系统及水池拖车

Also Published As

Publication number Publication date
FR593050A (fr) 1925-08-14
GB229664A (enrdf_load_stackoverflow) 1925-08-06
NL15816C (enrdf_load_stackoverflow)

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