US2821872A - Portable power drill attachment - Google Patents

Portable power drill attachment Download PDF

Info

Publication number
US2821872A
US2821872A US621374A US62137456A US2821872A US 2821872 A US2821872 A US 2821872A US 621374 A US621374 A US 621374A US 62137456 A US62137456 A US 62137456A US 2821872 A US2821872 A US 2821872A
Authority
US
United States
Prior art keywords
sleeve
adjacent
handle
levers
drill
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
US621374A
Inventor
Salfer Donald George
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US621374A priority Critical patent/US2821872A/en
Application granted granted Critical
Publication of US2821872A publication Critical patent/US2821872A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work
    • 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
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/561—Having tool-opposing, work-engaging surface
    • Y10T408/5619—Flexible or concatenated member

Definitions

  • the present invention relates to an attachment for a portable power drill for supporting and feeding the drill into a work piece.
  • An object of the present invention is to provide an attachment for a portable power drill which lends itself to ready attachment to a work piece for feeding the drill into the work piece, one which is readily and easily mounted upon the steadying handle of the drill and serves as a steadying handle of the drill when attached, as well as one which is sturdily constructed and of simple structure, economical to manufacture and assemble, and one which is highly effective in action.
  • Figure 1 is an elevational view of a part of a power drill with the attachment of the present invention installed thereon, showing the drill in operation drilling a work piece, the arrow illustrating the direction of movement of the handle of the attachment for feeding the drill into the work piece;
  • Figure 2 is a plan view of the assembly of Figure 1;
  • Figure 3 is an end view of the assembly of Figure 1;
  • Figure 4 is a sectional view, on an enlarged scale, taken on the line 44 of Figure 3;
  • Figure 5 is a sectional view, on an enlarged scale, taken on the line 55 of Figure 3.
  • the attachment of the present invention is for use with a portable power drill, indicated by the reference numeral 10, andhaving a steadying handle 11 projecting perpendicularly from the housing of the drill 10.
  • the attachment comprises an outer sleeve 12 and an inner sleeve 12' circumposed about the steadying handle 11 so that one end of the sleeve 12 is adjacent the inner end of the steadying handle 11 and the other end of the sleeve is inwardly of and adjacent the outer end of the steadying handle 11.
  • a lever 13 disposed horizontally, is arranged longitudinally of the sleeve 12 and on one side thereof and has a portion adjacent one end extending beyond the sleeve and which is adjacent the inner end of the steadying handle 11 and has the portion adjacent the other end extending beyond the other end of the sleeve 12, the latter sleeve ending adjacent the outer end of the steadying handle 11.
  • another lever 14 is similarly positioned and is arranged in parallel spaced relation with respect to the lever 13.
  • Means is provided connecting the portions of the levers 13 and 14 adjacent the inner end of the steadying handle 11 to a sleeve 12 for upward and downward movement about horizontal axes.
  • this means embodies a pair of diverging arms having their converging ends fixedly secured to the sleeve 12, the arms being indicated by the reference numerals 15 and 16, portions of the arms 15 and 16 adjacent to and inwardly of their diverging ends being longitudinally of the adjacent portions of the levers Patented Feb. 4, 1958 2 a 13 and 14.
  • the diverged ends of the arms 15 and 16 are pivotally connected to the levers 13 and 14, respectively, inwardly of their ends which project beyond the inner end of the steadying handle 11 for upward and downward movement of the levers 13 and 14 about their pivot points as an axis.
  • lever 13 is pivotally connected to the arm 15 by means of a bolt 17, there being provided a frictionless bearing bushing 18 serving as a mounting for the bolt 17 and having a flange 19 interposed between the adjacent portions of the lever 13 and the arm 15.
  • the lever 14 is similarly connected to the arm 16.
  • Means embodying a handle 21 connects the other ends of the levers 13 and 14 together, the handle 21 being movable downwardly, as indicated by the arrow in Figure 1, for moving the levers 13 and 14 together downwardly.
  • Means is provided on the ends of the levers 13 and 14 adjacent their points of connections to the arms 15 and 16 for engaging a work piece 22 for moving the drill 10 toward the work piece 22 upon execution of movement of the handle 21 downwardly.
  • this means comprises a loop of chain 23 having one end fixed to one end of the lever 13 and the other end fixed to the end of the lever 14.
  • Spring means is provided for urging the levers l3 and 14 to their upward movement position and, specifically, this means consists in a pair of springs 24 and 25, the spring 24 having one end fixed to the lever 13 and the other end fixed to the sleeve 12, and the spring 25 having one end fixed to the lever 14 and its other end fixed to the sleeve 12.
  • Set screws 27 and 31 are provided and are threaded into tapped holes in the ends of the sleeve 12'.
  • the attachment of the present invention is quickly installed upon the steadying handle by slipping the sleeve 12 thereover.
  • the sleeve 12 is then slipped over the inner sleeve 12 and the set screws 27 and 31 are inserted in the holes in the sleeve 12 and drawn up snug.
  • the chain 23 is rapidly looped under a work piece 22 and with the motor of the drill 10 turning the bit 28, pressure downwardly upon the handle 21 will serve to steady the drill 10 and also feed the bit 28 through the work piece 22.
  • the drill 10 is of conventional manufacture having a pistol grip handle 29 and a breast-rest handle 31.
  • An attachment for a portable power drill having a steadying handle having an inner end and an outer end comprising a sleeve circumposed about said steadying handle so that one end thereof is adjacent the inner end of said steadying handle and the other end is adjacent the outer end of said steadying handle, a lever arranged longitudinally of and on each side of said sleeve and having the portion adjacent one end beyond said sleeve one end and having the portion adjacent the other end beyond said other sleeve end, means connecting the portions adjacent said one end of said levers to said sleeve for up and down movement about horizontal axes, means connecting the other ends of said levers for movement together, and means carried by said one ends of said levers adapted to engage a work piece and operable to feed said drill into said work piece upon execution of downward movement of said levers.
  • An attachment for a portable power drill having a steadying handle having an inner end and an outer end comprising a sleeve circumposed about said steadying handle so that one end thereof is adjacent the inner end of said steadying handle and the other end is adjacent the outer end of said steadying handle, a lever arranged longitudinally of and on each side of said sleeve and having the portion adjacent one end beyond said sleeve one end andhaving the portion. adjacent the other end beyond said other sleeve end, means connecting the portions adjacent Said one end of said levers to said sleeve for up and down movement about.
  • An attachment-tor a portable,' power -drill-having a steadying handle having an inner -end 'andmn. outer end eomprising aa sleeve -circurnposed- --about sa-id steadying handle-so: that one :end. thereofi is adjacent the inner -end of said steadying handle and the other end is adjacent the 'outer end of said-steadying handle; a lever arranged lo'ngh tudinajlly of-and on each' side of said sleeve a-ndhaving the portion adjacent one end.
  • rneans embodyi-nga-j-tpair of diverging arms each havingits diverging- ⁇ e'nd connectedlto the portion of the adjacent-lever adjacent said-one end thereof for upand down movement of said-leverabout a-hori- .zontal axis and having its-converging end fixedly secured to saidsleeve inwardly of said one end of the latter, means connecting 1 the-other ends 'ofwsaidlevers for: movement together, means carried by said one ends ofti-saidievers -adaptedto engageawork piece andgop efablfl tfl feed Isaid drill rinto-Tsaimworlo ⁇ piecemupon execution ofdownward movement oisaid levers;
  • An attachment for a portable power drill having a steadying handle having an inner end and an outer end comprising a sleeve circumposed about said steadying handle so that one end thereof is adjacent the inner end of said steadying handle and the other end is adjacent the outer end of said steadying handle, a lever arranged longitudinally of and on each side of said sleeve and having the portion adjacent one e'ndbeyond said sleeve one end and havingthe portion axijaeent: theother end beyond said other sleeve end, means embodying a pair of diverging arms eacli having 'its diverging-end eonn'eeted" to the portion-of the adjacent-leveradjacent said one end thereof for up and'down movement of said lever about a horizontal axis, and l iavi-ngiits converging end fixedly secured to said sleeve inwardly of said one end of the latter, means embodying a handle connecting the other ends of said levers for movement together, means embodying
  • levers adapted .toie ngage a work piece and operable “to feed said drill into said workpiece upon execution of'downward movement of said levers, and .spring, means operatively connecting said levers to saidsleeve for urging said levers 'toward their upward movement position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Description

Feb. 4, 1958 D. s. SALFER I 2,821,872
PORTABLE POWER DRILL ATTACHMENT Filed Nov. 9, 1956 2 Sheets-Sheet l v 3/ O Z9 Z7 0 F IG. 2
INVENTOR. DONALD G. SAL 52,
Feb. 4, 1958 D. G. SALFER 2,821,872
PORTABLE POWER DRILL ATTACHMENT Filed Nov. 9, 195a 2 Sheets-Sheet 2 FIG. 3. C 3
IO /3 1 Q4 IN VEN TOR. oo/mz 0 G. 544 P52,
ATTOZ/VE Y5.
r dswtes Pa w The present invention relates to an attachment for a portable power drill for supporting and feeding the drill into a work piece.
An object of the present invention is to provide an attachment for a portable power drill which lends itself to ready attachment to a work piece for feeding the drill into the work piece, one which is readily and easily mounted upon the steadying handle of the drill and serves as a steadying handle of the drill when attached, as well as one which is sturdily constructed and of simple structure, economical to manufacture and assemble, and one which is highly effective in action.
These and other objects and advantages of the present invention will become fully apparent when taken in connection with the annexed drawings, in which:
Figure 1 is an elevational view of a part of a power drill with the attachment of the present invention installed thereon, showing the drill in operation drilling a work piece, the arrow illustrating the direction of movement of the handle of the attachment for feeding the drill into the work piece;
Figure 2 is a plan view of the assembly of Figure 1;
Figure 3 is an end view of the assembly of Figure 1;
Figure 4 is a sectional view, on an enlarged scale, taken on the line 44 of Figure 3; and
Figure 5 is a sectional view, on an enlarged scale, taken on the line 55 of Figure 3.
Referring in greater detail to the drawings in which like numerals indicate like parts throughout the several views, the attachment of the present invention is for use with a portable power drill, indicated by the reference numeral 10, andhaving a steadying handle 11 projecting perpendicularly from the housing of the drill 10. The attachment comprises an outer sleeve 12 and an inner sleeve 12' circumposed about the steadying handle 11 so that one end of the sleeve 12 is adjacent the inner end of the steadying handle 11 and the other end of the sleeve is inwardly of and adjacent the outer end of the steadying handle 11.
A lever 13, disposed horizontally, is arranged longitudinally of the sleeve 12 and on one side thereof and has a portion adjacent one end extending beyond the sleeve and which is adjacent the inner end of the steadying handle 11 and has the portion adjacent the other end extending beyond the other end of the sleeve 12, the latter sleeve ending adjacent the outer end of the steadying handle 11. On the other side of the sleeve 12 another lever 14 is similarly positioned and is arranged in parallel spaced relation with respect to the lever 13.
Means is provided connecting the portions of the levers 13 and 14 adjacent the inner end of the steadying handle 11 to a sleeve 12 for upward and downward movement about horizontal axes. Specifically, this means embodies a pair of diverging arms having their converging ends fixedly secured to the sleeve 12, the arms being indicated by the reference numerals 15 and 16, portions of the arms 15 and 16 adjacent to and inwardly of their diverging ends being longitudinally of the adjacent portions of the levers Patented Feb. 4, 1958 2 a 13 and 14. The diverged ends of the arms 15 and 16 are pivotally connected to the levers 13 and 14, respectively, inwardly of their ends which project beyond the inner end of the steadying handle 11 for upward and downward movement of the levers 13 and 14 about their pivot points as an axis.
In Figure 4, it will be seen that'the lever 13 is pivotally connected to the arm 15 by means of a bolt 17, there being provided a frictionless bearing bushing 18 serving as a mounting for the bolt 17 and having a flange 19 interposed between the adjacent portions of the lever 13 and the arm 15. The lever 14 is similarly connected to the arm 16.
Means embodying a handle 21 connects the other ends of the levers 13 and 14 together, the handle 21 being movable downwardly, as indicated by the arrow in Figure 1, for moving the levers 13 and 14 together downwardly.
Means is provided on the ends of the levers 13 and 14 adjacent their points of connections to the arms 15 and 16 for engaging a work piece 22 for moving the drill 10 toward the work piece 22 upon execution of movement of the handle 21 downwardly. Specifically, this means comprises a loop of chain 23 having one end fixed to one end of the lever 13 and the other end fixed to the end of the lever 14.
Spring means is provided for urging the levers l3 and 14 to their upward movement position and, specifically, this means consists in a pair of springs 24 and 25, the spring 24 having one end fixed to the lever 13 and the other end fixed to the sleeve 12, and the spring 25 having one end fixed to the lever 14 and its other end fixed to the sleeve 12.
Set screws 27 and 31 are provided and are threaded into tapped holes in the ends of the sleeve 12'.
In operation, the attachment of the present invention is quickly installed upon the steadying handle by slipping the sleeve 12 thereover. The sleeve 12 is then slipped over the inner sleeve 12 and the set screws 27 and 31 are inserted in the holes in the sleeve 12 and drawn up snug. The chain 23 is rapidly looped under a work piece 22 and with the motor of the drill 10 turning the bit 28, pressure downwardly upon the handle 21 will serve to steady the drill 10 and also feed the bit 28 through the work piece 22.
The drill 10 is of conventional manufacture having a pistol grip handle 29 and a breast-rest handle 31.
What is claimed is:
1. An attachment for a portable power drill having a steadying handle having an inner end and an outer end comprising a sleeve circumposed about said steadying handle so that one end thereof is adjacent the inner end of said steadying handle and the other end is adjacent the outer end of said steadying handle, a lever arranged longitudinally of and on each side of said sleeve and having the portion adjacent one end beyond said sleeve one end and having the portion adjacent the other end beyond said other sleeve end, means connecting the portions adjacent said one end of said levers to said sleeve for up and down movement about horizontal axes, means connecting the other ends of said levers for movement together, and means carried by said one ends of said levers adapted to engage a work piece and operable to feed said drill into said work piece upon execution of downward movement of said levers.
2. An attachment for a portable power drill having a steadying handle having an inner end and an outer end comprising a sleeve circumposed about said steadying handle so that one end thereof is adjacent the inner end of said steadying handle and the other end is adjacent the outer end of said steadying handle, a lever arranged longitudinally of and on each side of said sleeve and having the portion adjacent one end beyond said sleeve one end andhaving the portion. adjacent the other end beyond said other sleeve end, means connecting the portions adjacent Said one end of said levers to said sleeve for up and down movement about. horizontal: axes rneans' connecting t the'other ends ofisaidlev'ers for movemenbtogethen means carried ,by saidlone endsof 1 saidlevers-adapted-to engage a work-"piece land operable to feed said drilll-l-into -said work, 1 pieceiupon execution -ofi downward movement-of said levers, and spring means operatively eonnectingsaid levers to said sleeve-for urgingsaid levers tow-ardlupward movementtposition.
, 3" An attachment-tor a portable,' power -drill-having a steadying handle having an inner -end 'andmn. outer end eomprising aa sleeve -circurnposed- --about sa-id steadying handle-so: that one :end. thereofi is adjacent the inner -end of said steadying handle and the other end is adjacent the 'outer end of said-steadying handle; a lever arranged lo'ngh tudinajlly of-and on each' side of said sleeve a-ndhaving the portion adjacent one end. beyond Esaid sleeve one end and having theportion adjacent the othen'end-beyondsaid other sleeveend, rneans embodyi-nga-j-tpair of diverging arms each havingits diverging- \e'nd connectedlto the portion of the adjacent-lever adjacent said-one end thereof for upand down movement of said-leverabout a-hori- .zontal axis and having its-converging end fixedly secured to saidsleeve inwardly of said one end of the latter, means connecting 1 the-other ends 'ofwsaidlevers for: movement together, means carried by said one ends ofti-saidievers -adaptedto engageawork piece andgop efablfl tfl feed Isaid drill rinto-Tsaimworlo} piecemupon execution ofdownward movement oisaid levers;
4. An attachment for a portable power drill having a steadying handle having an inner end and an outer end comprising a sleeve circumposed about said steadying handle so that one end thereof is adjacent the inner end of said steadying handle and the other end is adjacent the outer end of said steadying handle, a lever arranged longitudinally of and on each side of said sleeve and having the portion adjacent one e'ndbeyond said sleeve one end and havingthe portion axijaeent: theother end beyond said other sleeve end, means embodying a pair of diverging arms eacli having 'its diverging-end eonn'eeted" to the portion-of the adjacent-leveradjacent said one end thereof for up and'down movement of said lever about a horizontal axis, and l iavi-ngiits converging end fixedly secured to said sleeve inwardly of said one end of the latter, means embodying a handle connecting the other ends of said levers for movement together, means embodying a loop ofi flexibletchain carried by-said one ends of. said levers adapted .toie ngage a work piece and operable "to feed said drill into said workpiece upon execution of'downward movement of said levers, and .spring, means operatively connecting said levers to saidsleeve for urging said levers 'toward their upward movement position.
' 'Refere'nceslCited' iii the file" or this patent --.'UNITE-D S F-A ITES' PATENTS
US621374A 1956-11-09 1956-11-09 Portable power drill attachment Expired - Lifetime US2821872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US621374A US2821872A (en) 1956-11-09 1956-11-09 Portable power drill attachment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US621374A US2821872A (en) 1956-11-09 1956-11-09 Portable power drill attachment

Publications (1)

Publication Number Publication Date
US2821872A true US2821872A (en) 1958-02-04

Family

ID=24489892

Family Applications (1)

Application Number Title Priority Date Filing Date
US621374A Expired - Lifetime US2821872A (en) 1956-11-09 1956-11-09 Portable power drill attachment

Country Status (1)

Country Link
US (1) US2821872A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114747B1 (en) * 1969-10-03 1976-05-12
US4168926A (en) * 1977-12-30 1979-09-25 Rudolph Belcourt Lever device for power drill
US7052216B1 (en) 2005-01-11 2006-05-30 Fields Robert M Work saver for an electric drill
US7140813B2 (en) * 2003-07-15 2006-11-28 Tucker Bradley J Line boring machine
US20080219788A1 (en) * 2004-08-24 2008-09-11 Allen Ip, Incorporated Tool with Remote Switch
US20100080664A1 (en) * 2008-09-30 2010-04-01 Mckenzie George Apparatus for applying leverage force to a hand drill
USRE44289E1 (en) 2004-06-23 2013-06-11 Allen Ip Inc. Pocket hole drilling machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2362929A (en) * 1941-12-19 1944-11-14 Richards J Taliesin Pressure handle for pneumatic and electric portable drills
US2695525A (en) * 1950-03-03 1954-11-30 H & O Tool Company Portable drill jack
US2772585A (en) * 1954-04-30 1956-12-04 Donald G Salfer Power drill attachment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2362929A (en) * 1941-12-19 1944-11-14 Richards J Taliesin Pressure handle for pneumatic and electric portable drills
US2695525A (en) * 1950-03-03 1954-11-30 H & O Tool Company Portable drill jack
US2772585A (en) * 1954-04-30 1956-12-04 Donald G Salfer Power drill attachment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114747B1 (en) * 1969-10-03 1976-05-12
US4168926A (en) * 1977-12-30 1979-09-25 Rudolph Belcourt Lever device for power drill
US7140813B2 (en) * 2003-07-15 2006-11-28 Tucker Bradley J Line boring machine
USRE44289E1 (en) 2004-06-23 2013-06-11 Allen Ip Inc. Pocket hole drilling machine
US20080219788A1 (en) * 2004-08-24 2008-09-11 Allen Ip, Incorporated Tool with Remote Switch
US7641424B1 (en) 2004-08-24 2010-01-05 Allen Ip, Incorporated Non-pneumatic clamp and drilling system
US7811033B2 (en) 2004-08-24 2010-10-12 Allen Ip, Incorporated Tool with remote switch
US7052216B1 (en) 2005-01-11 2006-05-30 Fields Robert M Work saver for an electric drill
US20100080664A1 (en) * 2008-09-30 2010-04-01 Mckenzie George Apparatus for applying leverage force to a hand drill
US8596936B2 (en) 2008-09-30 2013-12-03 George McKENZIE Apparatus for applying leverage force to a hand drill

Similar Documents

Publication Publication Date Title
US2821872A (en) Portable power drill attachment
US2465152A (en) Folding rapid spinner wrench
EP0131517A3 (en) Arm mechanism supporting a borehole logging shoe
FR2446698A1 (en) IMPROVED STOPPING APPARATUS FOR PNEUMATICALLY CONTROLLED TOOLS
US2852245A (en) Circle cutting attachment for torches
US2253803A (en) Gauge
US4172610A (en) Ice cube pickup device
US2295932A (en) Cathead
US2567480A (en) Thread cleaning and truing device
US2415099A (en) Scupper valve remote control mechanism
US2589572A (en) Meter base spreader
US2476608A (en) Gate box turning tool
US4044470A (en) Collar locating apparatus
US2913195A (en) Crank for use with recording apparatus for earth bore drilling
CN108500895B (en) Tool special for installing taper sleeve bearing and taper sleeve nut
US2116743A (en) Wrench
US1478668A (en) Power pipe tongs
US2372973A (en) Staking tool
GB8609424D0 (en) Seat
US2434104A (en) Rotary drill
US1667934A (en) Piston-supporting device
US1781634A (en) Boiler-tap guide
US2969972A (en) Balanced load hanger
FR2510930A1 (en) POSITIONING DEVICES FOR MACHINING TOOL
GB836862A (en) Improvements in or relating to drive-sprocket derailleurs for cycles