US1464824A - Electric hammer - Google Patents
Electric hammer Download PDFInfo
- Publication number
- US1464824A US1464824A US545819A US54581922A US1464824A US 1464824 A US1464824 A US 1464824A US 545819 A US545819 A US 545819A US 54581922 A US54581922 A US 54581922A US 1464824 A US1464824 A US 1464824A
- Authority
- US
- United States
- Prior art keywords
- hammer
- electric hammer
- electric
- wheels
- gear
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/10—Means for driving the impulse member comprising a cam mechanism
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18296—Cam and slide
Definitions
- Fig. 1 is a longitudinal vertical section yof an electric hammer containing our invention and Fig. 2 is a horizontal section of the gearf in and cam.
- ur invention resides in the expedient of two oppositely rotating bevel-gears having reversely-set cams which, although rotating in opposite directions co-operate to periodically lift and release the hammer against the forceof its operating spring.
- A represents the shell of an electric hammer which may be made in separable parts convenient for assembling and replacin of the several members, as is now well ⁇ nown in the art.
- B is the armature of the operating electric motor, and C the ield magnet.
- the motor shaft extends axially of the machineand at its inner end is a bevel-pinion D which meshes with two parallel bevel gear-wheels E1, E2 and rotates them in opposite directions.
- each wheel Inside of each wheel is a two-ste cam H, the one shown in Fig. l being in tllie gear-wheel E1 and rotating in a clockwise direction.
- These cams act respectively in the projections, preferably rollers, rollers K1, K2 which project from the opposite sides of the hammer F and twice in each rotation they cooperatively lift the hammer against the force of its operating spring G and release it. ⁇
- the gear-wheels E7 and E2 have rearwardly projecting stubshafts e1 and e2 which are journalled in bearings in the shell A.
- An electric hammer comprising an electric m'otor, a bevel-pinion on the motor shaft, two bevel gear-wheels both driven by the said pinion but in opposite directions, a hammer with projections on opposite sides thereof extended intov the space between the gear-wheels, an operating spring yfor the hammer, and oppositely-rotating cams on the adjacent sides of the respective gearwheels acting co-operatively on the said hammer projections.
- An electric hammer comprising an electric motor, a bevel-pinion on the motor shaft, two bevel other with rear-si e journals therefor and both engaging the said pinion, a hammer with opposite projections thereon extended into the space betweenA the two gear-wheels, and oppositelyrotating cams on the inner sides of the respective gear-wheels acting co-operatively on the said hammer projections.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
Aug'. 14, 41923. 1,464.824
G. L.. KoLLocK ET AL ELECTRIC HAMMER Filed March 22, 1922 V vwamtoz.)
Patented Aug. 14, 1923.
UNITEDl STATES PATENT OFFICE.
GEORGE L. KOLLOCK AND ROBERT P. MARTIN, OF SEATTLE, WASHINGTON, ASSIGNORS TO ELECTRIC HAMMER COMPANY, OF SEATTLE, WASHINGTON, A CORPORATION OF WASHINGTON.
ELECTRIC HAMMER.
Application led March 22, 1922. Serial No.l 545,819.
To all whom t may concern.
Be it known that we, GEORGE L. KoLLooK, a citizen of the United States, residing at Seattle, in the county of Kin and State of Washington, and ROBERT P. ARTIN, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Electric Hammers, the following being a'full, clear, and 'exact dis closure of the one form of our invention which we at present deem preferable.
For a detailed description of the present forni of our invention, reference may be had to the following specification and to the accompanying drawing, wherein- Fig. 1 is a longitudinal vertical section yof an electric hammer containing our invention and Fig. 2 is a horizontal section of the gearf in and cam.
ur invention resides in the expedient of two oppositely rotating bevel-gears having reversely-set cams which, although rotating in opposite directions co-operate to periodically lift and release the hammer against the forceof its operating spring. In the drawing A represents the shell of an electric hammer which may be made in separable parts convenient for assembling and replacin of the several members, as is now well {nown in the art. B is the armature of the operating electric motor, and C the ield magnet. lThe motor shaft extends axially of the machineand at its inner end is a bevel-pinion D which meshes with two parallel bevel gear-wheels E1, E2 and rotates them in opposite directions. Inside of each wheel is a two-ste cam H, the one shown in Fig. l being in tllie gear-wheel E1 and rotating in a clockwise direction. These cams act respectively in the projections, preferably rollers, rollers K1, K2 which project from the opposite sides of the hammer F and twice in each rotation they cooperatively lift the hammer against the force of its operating spring G and release it.` At each release the sprin forces the hammer out and causes it to give a sudden impact or blow upon the tool which may be includedy inthe chuck J at its extremit It will be observed that the gear-wheels E7 and E2 have rearwardly projecting stubshafts e1 and e2 which are journalled in bearings in the shell A. By this arrangement the space between the wheels is left free for the play of the inner end of hammer F and the rollers K1, K2 thereon.
What we claim as new and desire to secure by Letters Patent is:
13. An electric hammer, comprising an electric m'otor, a bevel-pinion on the motor shaft, two bevel gear-wheels both driven by the said pinion but in opposite directions, a hammer with projections on opposite sides thereof extended intov the space between the gear-wheels, an operating spring yfor the hammer, and oppositely-rotating cams on the adjacent sides of the respective gearwheels acting co-operatively on the said hammer projections. l
2. An electric hammer, comprising an electric motor, a bevel-pinion on the motor shaft, two bevel other with rear-si e journals therefor and both engaging the said pinion, a hammer with opposite projections thereon extended into the space betweenA the two gear-wheels, and oppositelyrotating cams on the inner sides of the respective gear-wheels acting co-operatively on the said hammer projections.
Sixgned at Seattle, county of King, State of ashington, this 10th day of March, 1922.
GEORGE L. KoILLooK. ROBERT P. MARTIN.
(gear-wheels facing eachA
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US545819A US1464824A (en) | 1922-03-22 | 1922-03-22 | Electric hammer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US545819A US1464824A (en) | 1922-03-22 | 1922-03-22 | Electric hammer |
Publications (1)
Publication Number | Publication Date |
---|---|
US1464824A true US1464824A (en) | 1923-08-14 |
Family
ID=24177675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US545819A Expired - Lifetime US1464824A (en) | 1922-03-22 | 1922-03-22 | Electric hammer |
Country Status (1)
Country | Link |
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US (1) | US1464824A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672707A (en) * | 1951-03-14 | 1954-03-23 | Abraham Bernstein | Noisemaking toy tool |
US2721491A (en) * | 1954-03-30 | 1955-10-25 | Joy Mfg Co | Impact means for power-operated pipe wrench |
US2794622A (en) * | 1953-07-08 | 1957-06-04 | Phillips Drill Co | Holder for self-drilling expansion shells and the like |
US2834384A (en) * | 1955-08-02 | 1958-05-13 | Cascades Plywood Corp | Veneer joggers and jointers |
US2905034A (en) * | 1958-04-18 | 1959-09-22 | Ralph M Turner | Reciprocatory impact hand tool |
US3489936A (en) * | 1967-06-14 | 1970-01-13 | Gen Electric | Toothbrush with motion selector button |
US3681726A (en) * | 1971-05-27 | 1972-08-01 | Moog Inc | Electromagneto-mechanical actuator |
US3747691A (en) * | 1970-02-13 | 1973-07-24 | O Lundman | Striking machine |
USRE29081E (en) * | 1971-05-27 | 1976-12-14 | Moog Inc. | Electromagneto-mechanical actuator |
US4732220A (en) * | 1983-05-19 | 1988-03-22 | Marcus Komponenter Ab | Apparatus for briefly and impulsively releasing mechanical energy |
US5046374A (en) * | 1989-09-05 | 1991-09-10 | Coors Brewing Company | Apparatus for preforming work |
US5134874A (en) * | 1989-09-05 | 1992-08-04 | Coors Brewing Company | Method for performing work |
GB2413777A (en) * | 2004-05-07 | 2005-11-09 | Bosch Gmbh Robert | Impact mechanism for power tool |
US20070141529A1 (en) * | 2004-07-13 | 2007-06-21 | Westport Medical, Inc. | Powered surgical instruments |
US7581484B1 (en) * | 2005-08-22 | 2009-09-01 | The United States Of America As Represented By The Secretary Of The Army | Weapon system retention device |
US20110159459A1 (en) * | 2009-12-31 | 2011-06-30 | Saied Mohamed Hassan Darwish | Tooth extraction tool |
-
1922
- 1922-03-22 US US545819A patent/US1464824A/en not_active Expired - Lifetime
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672707A (en) * | 1951-03-14 | 1954-03-23 | Abraham Bernstein | Noisemaking toy tool |
US2794622A (en) * | 1953-07-08 | 1957-06-04 | Phillips Drill Co | Holder for self-drilling expansion shells and the like |
US2721491A (en) * | 1954-03-30 | 1955-10-25 | Joy Mfg Co | Impact means for power-operated pipe wrench |
US2834384A (en) * | 1955-08-02 | 1958-05-13 | Cascades Plywood Corp | Veneer joggers and jointers |
US2905034A (en) * | 1958-04-18 | 1959-09-22 | Ralph M Turner | Reciprocatory impact hand tool |
US3489936A (en) * | 1967-06-14 | 1970-01-13 | Gen Electric | Toothbrush with motion selector button |
US3747691A (en) * | 1970-02-13 | 1973-07-24 | O Lundman | Striking machine |
USRE29081E (en) * | 1971-05-27 | 1976-12-14 | Moog Inc. | Electromagneto-mechanical actuator |
US3681726A (en) * | 1971-05-27 | 1972-08-01 | Moog Inc | Electromagneto-mechanical actuator |
US4732220A (en) * | 1983-05-19 | 1988-03-22 | Marcus Komponenter Ab | Apparatus for briefly and impulsively releasing mechanical energy |
US5046374A (en) * | 1989-09-05 | 1991-09-10 | Coors Brewing Company | Apparatus for preforming work |
US5134874A (en) * | 1989-09-05 | 1992-08-04 | Coors Brewing Company | Method for performing work |
GB2413777A (en) * | 2004-05-07 | 2005-11-09 | Bosch Gmbh Robert | Impact mechanism for power tool |
US20050247462A1 (en) * | 2004-05-07 | 2005-11-10 | Gerhard Meixner | Hand machine tool with a hammer mechanism |
US20070141529A1 (en) * | 2004-07-13 | 2007-06-21 | Westport Medical, Inc. | Powered surgical instruments |
US7874839B2 (en) * | 2004-07-13 | 2011-01-25 | Westport Medical, Inc. | Powered surgical instruments |
US7581484B1 (en) * | 2005-08-22 | 2009-09-01 | The United States Of America As Represented By The Secretary Of The Army | Weapon system retention device |
US20110159459A1 (en) * | 2009-12-31 | 2011-06-30 | Saied Mohamed Hassan Darwish | Tooth extraction tool |
US8517730B2 (en) * | 2009-12-31 | 2013-08-27 | King Saud University | Tooth extraction tool |
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