US1375343A - Grindstone - Google Patents

Grindstone Download PDF

Info

Publication number
US1375343A
US1375343A US369893A US36989320A US1375343A US 1375343 A US1375343 A US 1375343A US 369893 A US369893 A US 369893A US 36989320 A US36989320 A US 36989320A US 1375343 A US1375343 A US 1375343A
Authority
US
United States
Prior art keywords
shaft
grinder
frame
secured
arms
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
US369893A
Inventor
Sherman R Adams
Lloyd C Adams
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 US369893A priority Critical patent/US1375343A/en
Application granted granted Critical
Publication of US1375343A publication Critical patent/US1375343A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/024—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor driven by hands or feet

Definitions

  • Our invention is a grind stone and con sists of the novel features herein described and illustrated in the annexed drawing which forms a part of this specification.
  • FIG. 1 is a side elevation ofour grind stone.
  • Fig.2 is a plan of our grind stone with the hoods removed.
  • Fig. 3 is a side view of the drive gearing.
  • FIG. 1 indicates a box-shaped frame which is mounted at its ends on legs 2.
  • a shaft 4 extending transversely of the frame on which shaft is secured a circular grinder 5, preferably of emery.
  • a spiral gear 6 which meshes with a spiral gear 7 secured on a shaft 8 extending longitudinally in the frame 1 below the gear 6 through the end walls of the frame and journaled in bearings 9 secured to said end walls.
  • the shaft 8 has a squared end 10 on which may be secured a crank or a pulley for driving the shaft.
  • a shaft 11 extends transversely above the frame 1 on a level with the shaft 4: that is journaled in forked bearings 12, on the upper end of a pair of upstanding arms 13, which arms are fulcrumed at their lower ends on a shaft 14 extending transversely of the frame 1 through the side walls thereof.
  • Nuts 15 are secured on the outer ends of the shaft 1 1 against the side walls of the frame 1.
  • Springs 16 are secured at one end at 17 to the outside of the side walls of the frame 1 and extend upwardly and over the upper edge of the side walls of said frame and engage at their upper ends with the upper ends of the arms 13 which springs force the arms 13 to the left and maintain the grinder 18, which is secured on the shaft 11, in contact with the grinder 5.
  • the grinder 18 like the grinder 5 is preferably made of emery.
  • Yokes 19 are secured to the outside of the side walls of the frame 1 through which tension thereof applied to the arms 13.
  • a spiral gear 21 is secured on the shaft 8 which meshes with a spiral gear 22 secured H on the shaft 11, the spiral gear 21 being of suflicient length to permit the arms 13 to swing to the right or left for accommodating the grinder 18 to the grinder 5.
  • Hoods 23 and 24 are placed over the grinders 5 and 18 and rest on the upper edge of the frame 1, said hoods being cut at an angle at their inner ends to expose the meeting surfaces of the grinders 5 and 18 for grinding purposes.
  • Power is applied to the shaft 18'through a crank or pulley secured on the squared end 10 of the shaft.
  • the gears 7 and 21 engage the gears 6 and 22 respectively and rotate the grinders 5 and 18 respectively in a clockwise and counter-clockwise direction.
  • a tool is inserted between the grinders 5 and 18 and is sharpened thereby.
  • the springs 16 engage thearms 13 and swing the grinder 18 .to the right and maintain said grinder in contact with the grinder 5 thustaking up the wear of said grinders.
  • a grind stone including a frame, a grinder wheel journaled in said frame, a pair of arms fulcrumed in said frame, a

Description

S. R. AND L. C. ADAMS.
GRINDSTONE.
APPLICATION FILED MAR. 30,. I920.
Patented Apr. 19, 1921.
F/@, If.
//v v- Toms SHERMAN {P1 A 0A M5 LLOYD 6. ADAMS SHERMAN R. ADAMS AND LLOYD C. ADAMS, 0F LONG- BEACH, CALIFORNIA.
GRINDSTONE.
Specification of Letters Patent.
Patented Apr. 19, 1921.
Application filed March 30, 1920. Serial No. 369,893.
To all whom it may concern:
Be it known that we, SHERMAN R. ADAMS and LLOYD C. ADAMS, citizens of the United States, residing at Long. Beach, in the county of Los Angeles and State of California, have invented new and useful Improvements in Grindstones, of which the following is a specification.
Our invention is a grind stone and con sists of the novel features herein described and illustrated in the annexed drawing which forms a part of this specification.
Referring to the drawin Figure 1 is a side elevation ofour grind stone.
Fig.2 is a plan of our grind stone with the hoods removed.
Fig. 3 is a side view of the drive gearing.
In the drawing 1 indicates a box-shaped frame which is mounted at its ends on legs 2. In bearings 3 secured to the upper edge of the sides of the frame 1 is j'ournaled a shaft 4 extending transversely of the frame on which shaft is secured a circular grinder 5, preferably of emery. On the shaft 4 is also secured a spiral gear 6 which meshes with a spiral gear 7 secured on a shaft 8 extending longitudinally in the frame 1 below the gear 6 through the end walls of the frame and journaled in bearings 9 secured to said end walls. The shaft 8 has a squared end 10 on which may be secured a crank or a pulley for driving the shaft. A shaft 11 extends transversely above the frame 1 on a level with the shaft 4: that is journaled in forked bearings 12, on the upper end of a pair of upstanding arms 13, which arms are fulcrumed at their lower ends on a shaft 14 extending transversely of the frame 1 through the side walls thereof. Nuts 15 are secured on the outer ends of the shaft 1 1 against the side walls of the frame 1. Springs 16 are secured at one end at 17 to the outside of the side walls of the frame 1 and extend upwardly and over the upper edge of the side walls of said frame and engage at their upper ends with the upper ends of the arms 13 which springs force the arms 13 to the left and maintain the grinder 18, which is secured on the shaft 11, in contact with the grinder 5.
The grinder 18 like the grinder 5 is preferably made of emery.
Yokes 19 are secured to the outside of the side walls of the frame 1 through which tension thereof applied to the arms 13. By
means of said screws 20 the tension of the grinder 18 against the grinder 5 may be adjusted.
A spiral gear 21 is secured on the shaft 8 which meshes with a spiral gear 22 secured H on the shaft 11, the spiral gear 21 being of suflicient length to permit the arms 13 to swing to the right or left for accommodating the grinder 18 to the grinder 5. Hoods 23 and 24 are placed over the grinders 5 and 18 and rest on the upper edge of the frame 1, said hoods being cut at an angle at their inner ends to expose the meeting surfaces of the grinders 5 and 18 for grinding purposes.
The operation of our grindstone is as follows: 2
Power is applied to the shaft 18'through a crank or pulley secured on the squared end 10 of the shaft. As the shaft rotates the gears 7 and 21 engage the gears 6 and 22 respectively and rotate the grinders 5 and 18 respectively in a clockwise and counter-clockwise direction. A tool is inserted between the grinders 5 and 18 and is sharpened thereby. As the grinders wear the springs 16 engage thearms 13 and swing the grinder 18 .to the right and maintain said grinder in contact with the grinder 5 thustaking up the wear of said grinders.
Various changes may be made without departing from the spirit of the invention as claimed.
What is claimed is: V r
A grind stone including a frame, a grinder wheel journaled in said frame, a pair of arms fulcrumed in said frame, a
shaft journaled in the upper ends of said arms, a second grinder wheel secured on said shaft for engaging said first grinder Wheel, springs engaging said arms for maintaining said second grinder wheel in engagement with said first grinder wheel, means for driving said grinder wheels for sharpening a tool therebetween, and means for varying the tension of said springs.
In testimony whereof we have signed our names to this specification.
SHERMAN R. ADAMS. LLOYD ADAMS.
US369893A 1920-03-30 1920-03-30 Grindstone Expired - Lifetime US1375343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US369893A US1375343A (en) 1920-03-30 1920-03-30 Grindstone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US369893A US1375343A (en) 1920-03-30 1920-03-30 Grindstone

Publications (1)

Publication Number Publication Date
US1375343A true US1375343A (en) 1921-04-19

Family

ID=23457359

Family Applications (1)

Application Number Title Priority Date Filing Date
US369893A Expired - Lifetime US1375343A (en) 1920-03-30 1920-03-30 Grindstone

Country Status (1)

Country Link
US (1) US1375343A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707852A (en) * 1951-07-07 1955-05-10 Oster John Mfg Co Knife sharpener
US2897637A (en) * 1958-01-15 1959-08-04 Union Die Casting Company Electric knife sharpener
US20060237594A1 (en) * 2002-05-01 2006-10-26 Kioumars Najmabadi Aircraft multi-axis modal suppression system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707852A (en) * 1951-07-07 1955-05-10 Oster John Mfg Co Knife sharpener
US2897637A (en) * 1958-01-15 1959-08-04 Union Die Casting Company Electric knife sharpener
US20060237594A1 (en) * 2002-05-01 2006-10-26 Kioumars Najmabadi Aircraft multi-axis modal suppression system

Similar Documents

Publication Publication Date Title
US1375343A (en) Grindstone
US1092877A (en) Sharpening device.
US2544810A (en) Sanding and polishing attachment for electric handsaw supporting and driving units
US1360998A (en) Sharpener for knives and the like
US1513276A (en) Grinder for lawn mowers
US1336863A (en) Valve-grinder
US1590619A (en) Shears sharpener
US1122998A (en) Valve-grinder.
US483749A (en) Grinding-machine
US1321847A (en) Portable combination power-tool
US748339A (en) Grinding-machine.
US1464728A (en) Portable grinder
US1376274A (en) Crank-shaft grinder
US772305A (en) Sharpening knives of veneer or other machines.
US639457A (en) Horseshoe-calk sharpener.
US1180727A (en) Horseshoe-calk sharpener.
US1158758A (en) Valve-grinding device.
US1206554A (en) Sharpener.
US538071A (en) District of co
US2477075A (en) Knife and tool grinder
US1183058A (en) Valve-grinder.
US1394014A (en) Work-support for grinders
US964101A (en) Polishing-machine.
US1460171A (en) Grindstone
US820761A (en) Honing-machine.