US955815A - Lock for gearing. - Google Patents

Lock for gearing. Download PDF

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Publication number
US955815A
US955815A US53470509A US1909534705A US955815A US 955815 A US955815 A US 955815A US 53470509 A US53470509 A US 53470509A US 1909534705 A US1909534705 A US 1909534705A US 955815 A US955815 A US 955815A
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United States
Prior art keywords
bolt
gearing
spindle
arm
bracket
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
US53470509A
Inventor
George O Leopold
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.)
NORTH BRO'S M'F'G CO
NORTH BROS Manufacturing CO
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NORTH BROS Manufacturing CO
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Application filed by NORTH BROS Manufacturing CO filed Critical NORTH BROS Manufacturing CO
Priority to US53470509A priority Critical patent/US955815A/en
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Publication of US955815A publication Critical patent/US955815A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/14—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising conical gears only
    • 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
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19688—Bevel

Definitions

  • My invention relates to certain improvements in mechanism for locking gearing, especially the gearing of breast drills.
  • Figure l is a side view of a breast drill illustrating my invention, part of the mechanism being in section taken on the line 1--1, Fig. 2, the bolt being withdrawn;
  • Fig. 2 is a side view of sutlicient of the drill to illustrate my invention, looking in the direction of the arrow 2, Fig. 1;
  • Fig. 3 is a sectional view on the line 3-3, Fig. 2, showing the bolt thrown;
  • Fig. 4 is a view looking in the direction of the arrow Ll, Fig. 3;
  • Fig. 5 is an enlarged sectional view on the line 5-5, Fig. 2;
  • Figs. (5, 7, 8 and 9, are detached perspective views illustrating my improvement.
  • A is the frame of a breast drill having bearings a, a for the spindle B.
  • This spindle has at one end a chuck b of any suitable type, in which the drill bit is clamped.
  • On the spindle B are two bevel pinions c, c', the pinion c is secured to the spindle, while the pinion c is loosely mounted thereon.
  • A is a bracket projecting from the frame A and carried by this bracket is a stud a on which is mounted the bevel gear wheel l).
  • This bevel gear wheel meshesI with the two pinions c, o.
  • the wheel has an extended hub and is held in place by a washer sccured by a screw a3, as shown clearly in Fig. 1.
  • E is an arm having a handle c, this arm is secured to the bevel wheel D in the present instance by a screw e.
  • the lower portion of the arm is forked and the portions e2 lit over the hub of the wheel so that the handle is held rigidly to the wheel. 0n turning the handle motion is imparted to the spindle B.
  • the gears have to be held by one hand so as to prevent the spindle turning with the shell b of the chuck which is grasped by the other hand.
  • the object of this invention is to provide means for locking the gearing so that when it is desired to open or close the chuck it is not necessary to hold the gearing with the hand.
  • z' is a bolt adapted to slide in a cavity d in the hub al and back of this bolt is a spring z" which tends to force the bolt forward.
  • An arm projects at an angle from the bolt and rests in a cavity c in the arm E, Fig. 8, and this cavity has a cam face e and in the cam face is a recess c5, so that when the arm 2 is shifted from the position shown in Fig. 4 to that shown in Fig. 2, the bolt will be withdrawn clear of the bracket against pressure of the spring, as illustrated in Fig. l.
  • the arm is turned to the position illustrated in Fig. 4, then the bolt is free to be projected into any one of the openings f in the bracket A', as illustrated in Fig. 3, thus locking the gear wheel D to the bracket or frame of the breast drill, and when in this position the chuck can be opened and closed without grasping the gearing, as the spindle is locked by the bolt z' through the medium of the gearing.
  • I claim 1 The combination of a frame having a bearing provided with an opening, a gear wheel mounted on the bearing, a spindle mounted in bearings on the frame, a pinion on the spindle meshing with the gear wheel, and a bolt carried by the gear wheel and adapted to be projected into the opening in the bearing to lock the wheel to the bearing and the spindle to the frame.
  • bracket a bracket, a spindle on the bracket, a gear wheel mounted on the spindle, said bracket having one or more openings, a bolt carried by the wheel and adapted to enter one of said openings, a cam on the gear wheel, and an arm on the bolt by which it is turned, said arm resting against the cam so that on turning the bolt it will be moved to and from the bracket.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

G. O. LEOPOLD.
LOOK FOR GEARING.
APPLIUATION 11LnD'nEc.za,19oo.
Patented Apr. 19,'1910.
2 SHEETS-SHEET 1.
4 @y @MMM G. 0. LEOPOLD. 1.00K 'Fon GBARING.
APPLICATION FILED DEU.23,1909.
955,81 5, Patented Apr. 19, 1910.
Z SHEETS-SHEET 2.
wilg-LGSS l zofgc 0. 160790125 MM im f M Aunnsw u ummm m Pummummmmrm wmmmnn n r GEORGE 0. LEOPOLD, OF
IVIFG- CO., OF PHILADELPHIA, PENNSY VANA.
PHILADELPHIA, PENNSYLVANIA, .ASSIGNOR TO NORTH BROS LVANIA, A CORPORATION OF PENNSYL- LOCK FOR GEARING.
Specification of Letters Patent.
Patented Apr. 19, 1910.
Application filed December 23, 1909. Serial No. 534,705.
To all whom it may concern:
Be it known that I, Geenen O. Lnorora), a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvement-s in Locks for Gearing, of which the following is a specification.
My invention relates to certain improvements in mechanism for locking gearing, especially the gearing of breast drills.
The object of the invention is to so lock the gearing that the spindle will not turn when the chuck is opened or closed to remove a drill bit or place it in position. This ob'- ject I attain in the following manner, reference being had to the accompanying drawings, in which Figure l, is a side view of a breast drill illustrating my invention, part of the mechanism being in section taken on the line 1--1, Fig. 2, the bolt being withdrawn; Fig. 2, is a side view of sutlicient of the drill to illustrate my invention, looking in the direction of the arrow 2, Fig. 1; Fig. 3, is a sectional view on the line 3-3, Fig. 2, showing the bolt thrown; Fig. 4, is a view looking in the direction of the arrow Ll, Fig. 3; Fig. 5, is an enlarged sectional view on the line 5-5, Fig. 2; and Figs. (5, 7, 8 and 9, are detached perspective views illustrating my improvement.
A is the frame of a breast drill having bearings a, a for the spindle B. This spindle has at one end a chuck b of any suitable type, in which the drill bit is clamped. On the spindle B are two bevel pinions c, c', the pinion c is secured to the spindle, while the pinion c is loosely mounted thereon.
A is a bracket projecting from the frame A and carried by this bracket is a stud a on which is mounted the bevel gear wheel l). This bevel gear wheel meshesI with the two pinions c, o. The wheel has an extended hub and is held in place by a washer sccured by a screw a3, as shown clearly in Fig. 1.
E is an arm having a handle c, this arm is secured to the bevel wheel D in the present instance by a screw e. The lower portion of the arm is forked and the portions e2 lit over the hub of the wheel so that the handle is held rigidly to the wheel. 0n turning the handle motion is imparted to the spindle B.
In the ordinary type of breast drill, in
order to open or close the chuck b the gears have to be held by one hand so as to prevent the spindle turning with the shell b of the chuck which is grasped by the other hand.
The object of this invention is to provide means for locking the gearing so that when it is desired to open or close the chuck it is not necessary to hold the gearing with the hand.
z' is a bolt adapted to slide in a cavity d in the hub al and back of this bolt is a spring z" which tends to force the bolt forward. An arm projects at an angle from the bolt and rests in a cavity c in the arm E, Fig. 8, and this cavity has a cam face e and in the cam face is a recess c5, so that when the arm 2 is shifted from the position shown in Fig. 4 to that shown in Fig. 2, the bolt will be withdrawn clear of the bracket against pressure of the spring, as illustrated in Fig. l. If the arm is turned to the position illustrated in Fig. 4, then the bolt is free to be projected into any one of the openings f in the bracket A', as illustrated in Fig. 3, thus locking the gear wheel D to the bracket or frame of the breast drill, and when in this position the chuck can be opened and closed without grasping the gearing, as the spindle is locked by the bolt z' through the medium of the gearing.
I claim 1. The combination of a frame having a bearing provided with an opening, a gear wheel mounted on the bearing, a spindle mounted in bearings on the frame, a pinion on the spindle meshing with the gear wheel, and a bolt carried by the gear wheel and adapted to be projected into the opening in the bearing to lock the wheel to the bearing and the spindle to the frame.
2. The combination of a bracket, a spindle on the bracket, a gear wheel mounted on the spindle, said bracket having one or more openings, a bolt carried by the wheel and adapted to enter one of said openings, a cam on the gear wheel, and an arm on the bolt by which it is turned, said arm resting against the cam so that on turning the bolt it will be moved to and from the bracket.
3. The combination of a bearing, having a spindle, a gear wheel mounted on the spindle, a bolt carried by the gear wheel, a
- spring back of the bolt, an arm on the bolt, name to this specification, in the presence of a handle 'adapfted to the geail'1 Wheel and haltWo subscribing Witnesses. ing a cam sur ace over Whc the arm on t e bolt travels when turned, said cam causing GEORGE O LEOPOLD' 5 thebolt t0 beV Withdrawn against the pres- Witnesses:
sure of the spring. WALTER CHISM, In testimony whereof, I have signed my WM. A. BARR.
US53470509A 1909-12-23 1909-12-23 Lock for gearing. Expired - Lifetime US955815A (en)

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US53470509A US955815A (en) 1909-12-23 1909-12-23 Lock for gearing.

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