US2481578A - Attachment for electric hand drills - Google Patents
Attachment for electric hand drills Download PDFInfo
- Publication number
- US2481578A US2481578A US541412A US54141244A US2481578A US 2481578 A US2481578 A US 2481578A US 541412 A US541412 A US 541412A US 54141244 A US54141244 A US 54141244A US 2481578 A US2481578 A US 2481578A
- Authority
- US
- United States
- Prior art keywords
- shaft
- gear
- attachment
- gears
- case
- 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
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/141—Mechanical overload release couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
- F16D7/042—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with at least one part moving axially between engagement and disengagement
- F16D7/044—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with at least one part moving axially between engagement and disengagement the axially moving part being coaxial with the rotation, e.g. a gear with face teeth
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/65—Means to drive tool
-
- 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
- Y10T74/19—Gearing
- Y10T74/19219—Interchangeably locked
- Y10T74/19372—Single forward and reverse speeds
Definitions
- This invention relates to electric drills and has for its object to provide an attachment for such drills whereby socket wrenches, screw drivers, etc. may be driven.
- Another object of the invention is to provide an attachment for electric hand drills whereby the speed of the drill may be reduced to operate tools requiring a relatively low speed for operation.
- a further object of the invention is to provide a slow speed attachment for electric hand drills having means whereby to operate tools in close quarters or in corners where the common drill cannot be used.
- Figure l is an elevational view of my device
- Figure 2 is a top plan view thereof
- Figure 3 is a section on line 3-3 of Figure 1;
- Figure 4 is a section on line 4-4 of Figure 2;
- Figure 5 is an enlarged view of Figure 3;
- Figure 6 is a section on line 66 of Figure 3;
- Figure 7 is an elevational view of an attachment
- Figure 8 is a sectional view thereof.
- Figure 9 is a detail sectional view taken on line 9-9 of Figure 1.
- My invention consists of a perforated case 5' formed in two sections, and held together by bolts 6. Within the case and mounted rotatahly upon suitable bearings, are additional shafts 5 and 6. On shaft 5 is fixed a main gear 1 and a reversing gear 8. On shaft 6 is fixed reversing gears 9 and ID. The shaft 4 has fixed thereon a gear II.
- the shaft 5 projects entirely through the casing and has fixed to its left end a clutch member l2 within which is a ball and socket connection I 3, between the shaft 5 and an extension shaft l4, upon which latter is slidably mounted, but fixed to rotate therewith, another clutch member I5, held normally into engagement with clutch member l2 by a spring I6 seated between washers l'5', I1.
- the outer end 19 of the last shaft is squared to 2 receive the socket end 2
- FIGs 7 and 8 I show an attachment adapted to be secured to terminal IQ of shaft i4 by means of the socket 22 and set screw 23, said member 22 being an integral part of a shaft 24 mounted in the angular casing 25 which shaft has fixed on its inner end a bevel gear 26 meshed with a similar gear 21 on a shaft 28; the outer end 29 being rectangular to receive the socket end of a tool to be driven thereby.
- the shaft 5 is slidable right and left in the case 5' and is held in fixed position by means of a key member 30 pivotally mounted on the top of the case, and has a slot 3
- gear 1 on this shaft meshes with the driving gear l'l whereby the gears are driven clockwise, but when the shaft 5 is in its left position gear l3 meshes with the lower gear ID on shaft 6 whereby the gear 8 and shaft 5 is driven counter-- clockwise to reversethe rotation of tool 2!.
- a set screw 36 holds the key in set position.
- An attachment for drill presses comprising a case, a slidable shaft mounted through said case, a pair of gears secured to said slide shaft, a drive shaft projecting into one side of the case and provided with a gear at its inner end meshing with one of the first mentioned gears, a countershaft in the case, a pair of gears on the countershaft, one of said countershaft gears meshing with the drive shaft gear while the other countershaft gear is spaced a greater distance away from its companion gear than the gears on the slide shaft are spaced apart, said slide shaft being slidable to reverse the drive from' the drive shaft to the slide shaft by disengaging one of the gears on the slide shaft from the drive shaft gear and meshin its remaining gear with said other gear on the countershaft and latch means for holding the slide shaft in one position or the other.
- An attachment for drill presses comprising a case, a slidable shaft mounted through said case, a pair of gears secured to said slide shaft, a drive shaft projecting into one side of the case and pro- Vided With a gear at its inner end meshing with Y one of the first mentioned gears, a countershaft in the case, a pair of gears on the counter shaft, one of said countershaft gears meshing with the shaft projecting into one side of the case and provided with a gear at its inner end meshing with one of the first mentioned-gears, a countershaft drive shaft gear while the other countershaft gear is spaced a greater distance away from its companion gear than the gears on the slide shaft are spaced apart, said slide shaft being slidable to reverse the drive from the drive shaft to the slide one side of the case adjacent one end o'fithe Slide shaft, said oneend of the slide shaft bein formed with circumferential grooves for receiving the 7 head portion of said hook-like member.
- An attachment for drill presses comprising a a'a slidabl -sbait mounted through sa d case, a pair of gears secured to said slide shaft, a drive shaft proj c ing-into one sideoi the case and p vide wi h.
- a gear atits inner endmeshing with one of the fir t mentioned gear a counte s f in the case, apair oflgears n he countershaft, one f id countershaftgears meshinswith'the drive shaft earwhile theothercountershaft gear is spaced a. greater distance awayrfrom its comp nion gear han the gea nonw the.
- said slide shaft being-s id ble to reverse the drive fromtheedrive shaft to the slide shaft by disengagingone oflthe gears on the slide shaft from the drive, shaft gear and meshin its remaining gear with s id. othergear on the countershaft and latch means for. holdin the slide h f in one p ition or. heother, said slide shaft a one nd being provided wi ha clutch element, said clutch elemen havlnga socket ther n, a shaft section having a.
- An attachm n for drill presses comprising a case, a slidable shaft mounted.thronehesaidcase,
- said clutch element having a socket therein, a
- shaft section having a ball head disposed in the socket, a Slidable clutch element on the shaft section coop'erative'with the first mentioned clutch element, an adjustable elementon the shaftsection, and a compression spring on the. shaft sec-. tion interposed between the adjustable element and the adjacent clutch elementfwhereby the latter is held engage with the first mentioned clutch element, the free end. ofthe shaft section ein ucted for attachment to a tooL.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Boring (AREA)
Description
Sept. 13, 1949.
A. B. DIXON ATTACHMENT FOR ELECTRIC HAND DRILLS 3 Sheets-Sheet 1 Filed June 21, 1944 Sept. 13, 1949. A. B. DIXON ATTACHMENT FOR ELECTRIC HAND DRILLS 3 Sheets-Sheet 2 f led June 21, 1944 120i 4 4 4 v v o o 0 Q \WM F Sept. 13, 1949. A. B. DIXON @TTACHMENT FOR ELECTRIC HAND DRILLS Filed June 21, 1944 3 ShQe'tS-Sheet 3 o o o o o o o o o o o o III/II Patented Sept. 13, 1949 UNITED STATES FATENT OFFICE ATTACHMENT FOR ELECTRIC HAND DRILLS Alfred B. Dixon, Wilcoe, W. Va.
Application June 21, 1944, Serial No. 541,412
4 Claims.
This invention relates to electric drills and has for its object to provide an attachment for such drills whereby socket wrenches, screw drivers, etc. may be driven.
Another object of the invention is to provide an attachment for electric hand drills whereby the speed of the drill may be reduced to operate tools requiring a relatively low speed for operation.
A further object of the invention is to provide a slow speed attachment for electric hand drills having means whereby to operate tools in close quarters or in corners where the common drill cannot be used.
With the above and such other objects in View as may hereinafter more fully appear, I have invented the device shown in the accompanying drawings in which:
Figure l is an elevational view of my device;
Figure 2 is a top plan view thereof;
Figure 3 is a section on line 3-3 of Figure 1;
Figure 4 is a section on line 4-4 of Figure 2;
Figure 5 is an enlarged view of Figure 3;
Figure 6 is a section on line 66 of Figure 3;
Figure 7 is an elevational view of an attachment; and
Figure 8 is a sectional view thereof; and
Figure 9 is a detail sectional view taken on line 9-9 of Figure 1.
Like reference characters indicate like parts throughout the following specification, and in the several views in the drawings in which I indicates my attachment for an electric hand drill 2 (shown dotted) to the shaft 3 of which is rigidly attached a drive shaft 4 of my device.
My invention consists of a perforated case 5' formed in two sections, and held together by bolts 6. Within the case and mounted rotatahly upon suitable bearings, are additional shafts 5 and 6. On shaft 5 is fixed a main gear 1 and a reversing gear 8. On shaft 6 is fixed reversing gears 9 and ID. The shaft 4 has fixed thereon a gear II. The shaft 5 projects entirely through the casing and has fixed to its left end a clutch member l2 within which is a ball and socket connection I 3, between the shaft 5 and an extension shaft l4, upon which latter is slidably mounted, but fixed to rotate therewith, another clutch member I5, held normally into engagement with clutch member l2 by a spring I6 seated between washers l'5', I1. A tension nut 11 screw threaded upon the portion l8 of shaft l4, serves as a backing for the washer II.
The outer end 19 of the last shaft is squared to 2 receive the socket end 2|] of a tool 2|, removably attached thereto.
Should an operator fail to switch off the electric current at the proper time, the clutch members l2 and I5 will automatically separate through compression of spring l6, thus preventing shearing off any elements of the device or parts of the work being operated upon.
In Figures 7 and 8 I show an attachment adapted to be secured to terminal IQ of shaft i4 by means of the socket 22 and set screw 23, said member 22 being an integral part of a shaft 24 mounted in the angular casing 25 which shaft has fixed on its inner end a bevel gear 26 meshed with a similar gear 21 on a shaft 28; the outer end 29 being rectangular to receive the socket end of a tool to be driven thereby.
The shaft 5 is slidable right and left in the case 5' and is held in fixed position by means of a key member 30 pivotally mounted on the top of the case, and has a slot 3| therein to fit the reduced portions 32 and 33 in the outer end 34 of shaft 5, whereby said shaft is locked in its desired position. When moved to the right the gear 1 on this shaft meshes with the driving gear l'l whereby the gears are driven clockwise, but when the shaft 5 is in its left position gear l3 meshes with the lower gear ID on shaft 6 whereby the gear 8 and shaft 5 is driven counter-- clockwise to reversethe rotation of tool 2!. A set screw 36 holds the key in set position.
I claim:
1. An attachment for drill presses comprising a case, a slidable shaft mounted through said case, a pair of gears secured to said slide shaft, a drive shaft projecting into one side of the case and provided with a gear at its inner end meshing with one of the first mentioned gears, a countershaft in the case, a pair of gears on the countershaft, one of said countershaft gears meshing with the drive shaft gear while the other countershaft gear is spaced a greater distance away from its companion gear than the gears on the slide shaft are spaced apart, said slide shaft being slidable to reverse the drive from' the drive shaft to the slide shaft by disengaging one of the gears on the slide shaft from the drive shaft gear and meshin its remaining gear with said other gear on the countershaft and latch means for holding the slide shaft in one position or the other.
2. An attachment for drill presses comprising a case, a slidable shaft mounted through said case, a pair of gears secured to said slide shaft, a drive shaft projecting into one side of the case and pro- Vided With a gear at its inner end meshing with Y one of the first mentioned gears, a countershaft in the case, a pair of gears on the counter shaft, one of said countershaft gears meshing with the shaft projecting into one side of the case and provided with a gear at its inner end meshing with one of the first mentioned-gears, a countershaft drive shaft gear while the other countershaft gear is spaced a greater distance away from its companion gear than the gears on the slide shaft are spaced apart, said slide shaft being slidable to reverse the drive from the drive shaft to the slide one side of the case adjacent one end o'fithe Slide shaft, said oneend of the slide shaft bein formed with circumferential grooves for receiving the 7 head portion of said hook-like member.
3. An attachment for drill presses comprising a a'a slidabl -sbait mounted through sa d case, a pair of gears secured to said slide shaft, a drive shaft proj c ing-into one sideoi the case and p vide wi h. a gear atits inner endmeshing with one of the fir t mentioned gear a counte s f in the case, apair oflgears n he countershaft, one f id countershaftgears meshinswith'the drive shaft earwhile theothercountershaft gear is spaced a. greater distance awayrfrom its comp nion gear han the gea nonw the. s icleishaft r p ced apart said slide shaftbeing-s id ble to reverse the drive fromtheedrive shaft to the slide shaft by disengagingone oflthe gears on the slide shaft from the drive, shaft gear and meshin its remaining gear with s id. othergear on the countershaft and latch means for. holdin the slide h f in one p ition or. heother, said slide shaft a one nd being provided wi ha clutch element, said clutch elemen havlnga socket ther n, a shaft section having a. ballhead disposedinthe ck a id le clutch element on theshaft secn o perat ve with-the first mentioned clutch le ent, an adjusta le element on theshait $6.01 tion, and a compression nring on theshaft section in e p d between the. adjustable element and the adjacent clutch element whereby the latter ish ld .eneagedwith thefirst mentioned clutch element. ,7, a 7..
4. An attachm n for drill presses comprising a case, a slidable shaft mounted.thronehesaidcase,
' a Pair of gears securedtosaid slideshait, a drive in the case, a pairof gears on the countershaft,
one of said countershaft gears meshing with the drive shaft gear while the other countershaft gear is spaced a greater'distance awayfrom' its companion gear thanthe gears on, the slide shaft are spaced apart, said slide shaft being slidable to reverse the drivefrom the drive shaft to the slide shaft by disengaging one of the gears on the slide shaft from the drive shaft gear and meshing its remaining gear with said other gear on the coun- 5 tershaft and latch means for holding the slide shaft in one position or the other, said slide shaft ;at one end being provided with a clutch element,
7 said clutch element having a socket therein, a
shaft section having a ball head disposed in the socket, a Slidable clutch element on the shaft section coop'erative'with the first mentioned clutch element, an adjustable elementon the shaftsection, and a compression spring on the. shaft sec-. tion interposed between the adjustable element and the adjacent clutch elementfwhereby the latter is held engage with the first mentioned clutch element, the free end. ofthe shaft section ein ucted for attachment to a tooL.
garn s ninrxort F REWESP T V a The following references are of 'reoord'in-the file of this patent;
, sTATEs'PA'IniI' rs; 1
Number Date 116,982 Great Britain a:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US541412A US2481578A (en) | 1944-06-21 | 1944-06-21 | Attachment for electric hand drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US541412A US2481578A (en) | 1944-06-21 | 1944-06-21 | Attachment for electric hand drills |
Publications (1)
Publication Number | Publication Date |
---|---|
US2481578A true US2481578A (en) | 1949-09-13 |
Family
ID=24159490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US541412A Expired - Lifetime US2481578A (en) | 1944-06-21 | 1944-06-21 | Attachment for electric hand drills |
Country Status (1)
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US (1) | US2481578A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2568318A (en) * | 1946-03-23 | 1951-09-18 | Frank R Chester | Drive mechanism for egg beaters |
US2787180A (en) * | 1945-04-27 | 1957-04-02 | Thomas P Walker | Open end ratchet wrenches |
US20190039215A1 (en) * | 2017-08-02 | 2019-02-07 | Tym Labs L.L.C. | Zero distance tool |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US815066A (en) * | 1904-05-19 | 1906-03-13 | Albert Collet | Portable apparatus for transmitting motion to tools. |
US968718A (en) * | 1909-07-14 | 1910-08-30 | Bernard T Burchardi | Tapping or drilling attachment. |
AT45902B (en) * | 1908-11-12 | 1911-01-10 | Jan Strup | Device for tightening and unscrewing rail bolts. |
US1232779A (en) * | 1917-03-30 | 1917-07-10 | Archibald M Ewart | Motor-winding crank. |
GB116982A (en) * | 1917-09-15 | 1918-07-04 | Herbert David Jackson | Improvements in and relating to Appliances or Machines for Rectifying Screwthreads and Performing like Operations. |
CH78693A (en) * | 1918-04-11 | 1918-08-16 | Arthur Amann | Drive on high-speed thread cutting machines |
US1325464A (en) * | 1919-12-16 | Saeety-ratchet | ||
US1410717A (en) * | 1920-02-09 | 1922-03-28 | Pestel Arthur | Mechanism for releasing excessive strains |
US1657274A (en) * | 1925-10-01 | 1928-01-24 | Niedhammer Adam | Tool |
US1679155A (en) * | 1926-07-26 | 1928-07-31 | Dorn Electric Tool Company Van | Power hand tool |
US1767434A (en) * | 1928-03-05 | 1930-06-24 | Adelbert A Childs | Right-angle socket stock |
US1904322A (en) * | 1932-03-26 | 1933-04-18 | Independent Pneumatic Tool Co | Stud setting tool |
US2176928A (en) * | 1936-09-17 | 1939-10-24 | Black & Decker Mfg Co | Screw driver and nut runner overload release |
-
1944
- 1944-06-21 US US541412A patent/US2481578A/en not_active Expired - Lifetime
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1325464A (en) * | 1919-12-16 | Saeety-ratchet | ||
US815066A (en) * | 1904-05-19 | 1906-03-13 | Albert Collet | Portable apparatus for transmitting motion to tools. |
AT45902B (en) * | 1908-11-12 | 1911-01-10 | Jan Strup | Device for tightening and unscrewing rail bolts. |
US968718A (en) * | 1909-07-14 | 1910-08-30 | Bernard T Burchardi | Tapping or drilling attachment. |
US1232779A (en) * | 1917-03-30 | 1917-07-10 | Archibald M Ewart | Motor-winding crank. |
GB116982A (en) * | 1917-09-15 | 1918-07-04 | Herbert David Jackson | Improvements in and relating to Appliances or Machines for Rectifying Screwthreads and Performing like Operations. |
CH78693A (en) * | 1918-04-11 | 1918-08-16 | Arthur Amann | Drive on high-speed thread cutting machines |
US1410717A (en) * | 1920-02-09 | 1922-03-28 | Pestel Arthur | Mechanism for releasing excessive strains |
US1657274A (en) * | 1925-10-01 | 1928-01-24 | Niedhammer Adam | Tool |
US1679155A (en) * | 1926-07-26 | 1928-07-31 | Dorn Electric Tool Company Van | Power hand tool |
US1767434A (en) * | 1928-03-05 | 1930-06-24 | Adelbert A Childs | Right-angle socket stock |
US1904322A (en) * | 1932-03-26 | 1933-04-18 | Independent Pneumatic Tool Co | Stud setting tool |
US2176928A (en) * | 1936-09-17 | 1939-10-24 | Black & Decker Mfg Co | Screw driver and nut runner overload release |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2787180A (en) * | 1945-04-27 | 1957-04-02 | Thomas P Walker | Open end ratchet wrenches |
US2568318A (en) * | 1946-03-23 | 1951-09-18 | Frank R Chester | Drive mechanism for egg beaters |
US20190039215A1 (en) * | 2017-08-02 | 2019-02-07 | Tym Labs L.L.C. | Zero distance tool |
US11267110B2 (en) * | 2017-08-02 | 2022-03-08 | Tym Labs L.L.C. | Zero distance tool |
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