US1793375A - Geseiilschaft - Google Patents
Geseiilschaft Download PDFInfo
- Publication number
- US1793375A US1793375A US1793375DA US1793375A US 1793375 A US1793375 A US 1793375A US 1793375D A US1793375D A US 1793375DA US 1793375 A US1793375 A US 1793375A
- Authority
- US
- United States
- Prior art keywords
- breaker
- arm
- spring
- cam
- movable member
- 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
- 239000002184 metal Substances 0.000 description 12
- 238000010276 construction Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 4
- 229920001342 Bakelite® Polymers 0.000 description 2
- 241000237074 Centris Species 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002452 interceptive Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/02—Advancing or retarding ignition; Control therefor non-automatically; dependent on position of personal controls of engine, e.g. throttle position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
Definitions
- the invention relates to ignition appara tus for internal combustion engines and more for periodically interrupting the primary ignition circuit.
- T he object of the invention is to improve the construction of the breaker arm or lever carrying one of the contacts and adapted to be actuated by a cam.
- this breaker arm consists of metal. and a hub of insulating material, by means or which the breaker armis pivoted upon a stationary stud.
- the insulating piece itseli is developed as the breaker arm.
- the construction is much simplified by the reduction of the number of parts required and the costs of manufacture are lessened.
- the weight of the breaker arm and thereby the interfering action of centri ugal force upon oscillating movements of the breaker arm is reduced. Consequently, the working or the breaker becomes nearly noiseless.
- Fig. i is a plan View of a circuit breaker embodying the invention.
- ig. 2 is a plan View of the breaker lever
- Fig. 8 is an end view of the breaker lever.
- 0 indicates the breaker base, supporting the breaker mechanismf
- This mechanism is comprised of the cam g, the movable breaker arm a carrying a contact point it by means of a clip or spring 6, and the stationary contact 2'.
- the cam g is arranged upon the end of the shaft 7), said shaft being part of a magneto or of a distributor.
- the breaker arm is made of bakelite, fiber or other suitable insulating material. This arm is pivoted upon a stud 7) supported by the base 0.
- the bumper is formed of a metal strip or spring f bent to form a loop and mounted on the end of the arm a.
- a spring 0 secured with one end to the base 0 and with the other end to the arm 0., tends to hold the contacts h and 2' closed.
- the three springs 0, e and f are attached to the movable breaker arm by means of a single common pin or rivet is traversing the said arm.
- rectangular grooves or notches n are provided for the reception of the ends of the springs c, e and f.
- Vfhen the cam g is operated by the engine, the contacts-h and dare periodically separated by the action of the cam upon the looped portion of spring f and periodically closed due to the action of spring 0 in the well known manner of the circuit breakers of ignition devices.
- Circuit breaker mechanism for ignition devices comprising a stationary contact, a movable member carrying a spring with a cooperating contact and a bumper formed of a metal strip, a cam for operating the movable member, a spring tending to hold the said contacts closed and, a pin traversing said movable member for securing said metal strip and springs to said movable member.
- Circuit breaker mechanism for ignition devices comprising a stationary contact, a
- movable member carrying a spring with a cooperating contact and a bumper formed of a metal strip, and a cam for operating the movable member, said movable member having grooves for the reception of the end of the said metal strip and the end of said spring.
Description
Feb. 17, 1931'. A 1,793,375
CIRCUIT BREAKER FOR IGNI'IVION DEVICES I Filed llav 14, 1927 tl'blli' Efi STTES OFFICE MAX F STUTTGART, GERMANY, ASSIGNOR T0 ROBERT BOSCH AKTIEN- GESELLSCHAET, DIE STUTTGART, GERMANY CIRCUIT BREAKER F03 IGNITION DEVZUES Application filed May 14:, 1927, Serial No. $811,465, and in Germany June 14, 1926.
The invention relates to ignition appara tus for internal combustion engines and more for periodically interrupting the primary ignition circuit.
T he object of the invention is to improve the construction of the breaker arm or lever carrying one of the contacts and adapted to be actuated by a cam. In the most usual constructions this breaker arm consists of metal. and a hub of insulating material, by means or which the breaker armis pivoted upon a stationary stud.
According to the invention, the insulating piece itseli is developed as the breaker arm. Hereby the construction is much simplified by the reduction of the number of parts required and the costs of manufacture are lessened. Further the weight of the breaker arm and thereby the interfering action of centri ugal force upon oscillating movements of the breaker arm is reduced. Consequently, the working or the breaker becomes nearly noiseless.
The invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a preferred embodiment of the present invention is shown.
in the drawings:
Fig. i is a plan View of a circuit breaker embodying the invention;
ig. 2 is a plan View of the breaker lever; and
Fig. 8 is an end view of the breaker lever.
in the drawings, 0 indicates the breaker base, supporting the breaker mechanismf This mechanism is comprised of the cam g, the movable breaker arm a carrying a contact point it by means of a clip or spring 6, and the stationary contact 2'. The cam g is arranged upon the end of the shaft 7), said shaft being part of a magneto or of a distributor. The breaker arm is made of bakelite, fiber or other suitable insulating material. This arm is pivoted upon a stud 7) supported by the base 0. The bumper is formed of a metal strip or spring f bent to form a loop and mounted on the end of the arm a. A spring 0 secured with one end to the base 0 and with the other end to the arm 0., tends to hold the contacts h and 2' closed.
As shown in Fig. 1, the three springs 0, e and f are attached to the movable breaker arm by means of a single common pin or rivet is traversing the said arm. On both sides of this arm rectangular grooves or notches n are provided for the reception of the ends of the springs c, e and f.
Vfhen the cam g is operated by the engine, the contacts-h and dare periodically separated by the action of the cam upon the looped portion of spring f and periodically closed due to the action of spring 0 in the well known manner of the circuit breakers of ignition devices.
While the forms of construction illustrated in the drawings and above described are the ones preferred by me in carrying out my invention, it is to be understood that various modifications can be made without departing from the invention as defined in the appended claims.
What ll claim is:
1. Circuit breaker mechanism for ignition devices, comprising a stationary contact, a movable member carrying a spring with a cooperating contact and a bumper formed of a metal strip, a cam for operating the movable member, a spring tending to hold the said contacts closed and, a pin traversing said movable member for securing said metal strip and springs to said movable member.
2. Circuit breaker mechanism for ignition devices, comprising a stationary contact, a
movable member carrying a spring with a cooperating contact and a bumper formed of a metal strip, and a cam for operating the movable member, said movable member having grooves for the reception of the end of the said metal strip and the end of said spring.
In testimony whereof I have hereunto affixed my signature.
MAX scnkrnmrmmmm.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1793375A true US1793375A (en) | 1931-02-17 |
Family
ID=3421377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1793375D Expired - Lifetime US1793375A (en) | Geseiilschaft |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1793375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635150A (en) * | 1950-08-15 | 1953-04-14 | William H Spang | Ignition timer assembly |
-
0
- US US1793375D patent/US1793375A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635150A (en) * | 1950-08-15 | 1953-04-14 | William H Spang | Ignition timer assembly |
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