US1590988A - Combined setwork and recede for sawmill carriages - Google Patents

Combined setwork and recede for sawmill carriages Download PDF

Info

Publication number
US1590988A
US1590988A US739636A US73963624A US1590988A US 1590988 A US1590988 A US 1590988A US 739636 A US739636 A US 739636A US 73963624 A US73963624 A US 73963624A US 1590988 A US1590988 A US 1590988A
Authority
US
United States
Prior art keywords
brake
pawl
ratchet
shaft
wheel
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
US739636A
Inventor
George E Campbell
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.)
WHELAND CO
Original Assignee
WHELAND CO
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 WHELAND CO filed Critical WHELAND CO
Priority to US739636A priority Critical patent/US1590988A/en
Application granted granted Critical
Publication of US1590988A publication Critical patent/US1590988A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B29/00Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages
    • B27B29/08Trunk or log carriages with gripping means designed to pass the saw blade(s), especially for band saws; Arrangement of gripping accessories thereon; Turning devices thereon
    • B27B29/10Assemblies for laterally adjusting or controlling the clamping or turning devices with respect to the thickness of the board to be sawn
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1558Grip units and features
    • Y10T74/1565Gripper releasing devices
    • Y10T74/1566Power pawl lifter

Description

June 29, 1926. 1,590,988 I} s. E. CAMPBELL I COMBINED SETWORK AND RECEDE FOR SAWMILL CARRIAGBS m Sept. 24, 1924 Sheets-Sheet 1 June 29 ,1926.

VG.E.CAMPBELL COMBINED SETWORK AND RECEDE FOR SAWMILL CARRIAGES Filed Sept. 24, 192

4 Sheets-Sheet 2 G. E. CAMPBELL COMBINED SETWORK AND REEDE FOR SAWMILL CARRIAGES June 29,1926. 1,590,988

Filed Sept. 2.4, 1:524 Sheets-Sheet 4 40 knees 5,

the knees to advance or recede' upon the 45 mechanism Patented J une 29, .1926.

fGEonGn CAMPBEL or cnn'rr COMPANY, orcrm'r'r 'nooGA, ennessean cpnrommion' orj rnnunssnnf ANDOGA, "rnnnnss'nn. lis'sie'non To run wHELAnD COMBINED sn'rwonx AND nncnnn roe SAWMiLL cARR IAens;

Application filed. September 2411 24. Serial'I i'o. 739,636.

This inventionjrelates. to combined setworks and recedelforsaw milllcarriages; the object being ,to comhine into I one nnit the hand-operated set-works, spring-rec'ede and 5 brake, and to operate all of these functions with one lever suitable for use .on asaw- I mill'carriage.

; Another object of nay inventionisthe ar- I i the sawmill setworksmou'nted on the carriagey -Fig. Qis-anendvieWofthe same; p I

Figs 3 is an enlarged side elevation, partly in section, of the pawland ratchet mechanism; '1 H 1 Fig. :4'is an end view of the mechanism 2 shown inFig. 3;- J

i Fig. 5.is aplanview and q s v Fig. 6"is a detail plan View of the pawls. The numerals -1'1 indicate the rails; 2,

of the quadrant cap;

' the carriage mounted uponjsuitable wheels 3- 3 adapted to traveluponthe rails 1-1 1.

Arranged transversely of the carriage at.

eitherv end thereofaare 'guideways 4: upon which are slidably mountedtheheadblock knees 5. Journaled in theguideways 4:;is a drive-shaft 6 extending longitudinally of the carriage, and keyed thereto at each end is .a gearwheelj'f adapted to mesh with the cogs 8 on the under side of the headblock the rotation of the shaft 6 causing carriage. v V

As a means for operating the knees" as described, I preferably provide the following Keyed to the shaft d is -"a ratchet-wheel 9,

the periphery of whichiis provided centrally thereofrwith ratchet teeth 10, edges -11--11 servingas braking surfaces. Y

5 i I. The shaft 6'is supported on oppositesides of the" 'ratchet-Wh'eel 9 by suitable bearings 1.Z'12 integral: with a-base 13:1I1011I1t8d. up-

"on the carriage 2., 'Extendingrearwardly from thebase 13 are brackets j 147-14 upon which areqpiyotallyx a ta; the, hclipawls 15%:15, there being two abreast,-;-an d one a trifie shorter than theother whereby a erdjus ment ay e ha I is-Qe vious that onewould suffice. brake shoe 16 hearing normally; against the braking drums 11 adj acent" the I ratchet-wheel 9. {is

pivotally' v mounted upon one end. of. a bell:

crank lever; 17 upona pin 17 journaledxin suitable bearings 18 1 adj ustably mounted 1 in slots 19 in the brackets 14%14; The lower end of the bell-cranklever 17 ,i's provided. a

with? a weight' 20 iwhichacts normally Lto hold the brake W The numeral 21 indicates a pawl set lever,

-forke'd "at; its lower end l straddle the shoe-16 against' 'th ratchet? J ratchet-wheel 9,.theilowerends oftheforkedli member being pivoted to the shaft A. pa r 53 of advance ratchet-pawls22 ar'wpivot'edito I wheel.9, th'e pawlsbeing of different lengths whereby a finer. adjustment rna'y be 'niadei I .The nume ral; 23. indicatesga pawl: lifter pivoted upon the-pin 17 zand extendingbeneath alla'terally projecting Ilug15 of the check-'piawls 15,2a1'1dbeneath a -laterally ex-K tending 111g 22', of one of the 'advanc'e' pawls 22 ,ZEXtending forwardly from theE-pawl lever 21 ,is 'a: PulLrod: 24eyprovided with .a handley25' serving in' on'e instancegas-a means rod 24 is rotatably journaledfin-a'bracketZ26 for actuating the pawlelever.v 21.- 1". This fpullsecured to: the upper-gendof the pawlrlever 21. Theouter end of theupull rodiStvlrned down to'form an at-m2? which isiconnected ,by' a chain 28to the outer endof zthe'ipawl i I lifter 23. .An arm 29kextendingdownward- Y lyfrom the pawl-'lifter'23 is valignedwithpa lug 3'0'formed on th'e'belhcrankbrake leverp After the pawl-lifter has raised thegpawls" from the ratchet-wheel 9, bythezr'otation of .thepul1-irod'24,-the arm 29 serves to; release the brake-shoes 16, releasingrthei,ratchetwheel 9. It will be observed that the down :ward movement. of the pawl-lifter 23. again applies the brake before "thezpawls' areilet downinto engagement Twith the: ratchetwheel,"thereby'preventingtheipossibility-of destroying the teeth 4 of the .ratchetrwheel. i JAsf-a means for'regulating the movement of the pawl lever 21,1 1 preferably provide afquadrant cap 31, the base of which iforms secured at its outer end to the shaft 6 by means of a collar 38, and at its inner end to the base 13, is wound up, keeping the ratchetwheels under tension, the latter when released by the brake 16 serving to recede the knees back from the saw.

As noticed in Fig; 3, the recede spring 37 imparts a backward motion to the brake'll as indicated by the dotted arrow A, the action being such that the minute the recede spring applies power in this direction the brake 'shoe l6graspstightly with a wedging effect; due to the toggle action of the link 17 and weight 20, this toggle action is always positive and automatically opposed to the spring action. On the other'hand when the operator desires to advance the kn'ees bypulling forward the lever 21in the direction of the arrow B, the brake due to thetoggle action,ofiers' very little resistance.

, 1 In operation, the kneeso are'receded',"and

' are sawed.

'a log placed in position whereupon the pawllever '21 is actuated by the pull-rod 2a, to advance the log step by step as 'the'boar'ds As theratchet-wheel 9 is rotatedto 'causethis advance, the spiral spring ."37is wound up, the pawls 15 and the brake 16 preventing "the rotation of thera'tchetwheel 9 in the opposite direction. Whenit is desired to Irecedethe' knees, the operator rotates the -pullrod 24c whereupon the pawl lifter is raised disengaging both sets of pawls 15 and 22 from the i'atchet wheel 9. The brake 16, however, still engages the ratchet-wheel 9 preventing its rotation in the backward dire'ction. A further upward movement of "the pawl-lifter 23 causes the arm 29 to engage the lug 30 of the brake bell crank lever, releasing the ra=tchet-wheelJ9.

Permitt-ingthe knees'5' to i-recede from the "saw. The pawl litter is then lowered, first disengaging the brake-shoe 1:6, setting the b'rake,tafter which a further downward movement-permits the pawls again to engage thei-ratchet-wheel 9.

' "I claim 2 1, In a sawmill s-etworks, the combination with 'headbl'ockknees, .ashaft carrying a pinion engaging therewith, a; ratchet-wheel and brakeedrum keyed to-said shaft, a checkpawl engaging said-ratchet-wheel, a gpivoted :pawl leveiyza"pawl-engaging said ratchet- :wheelv to impart ;move'ment thereto in one direction, a brakeshoe ien-gagingsaid brakeadapted normally ,itQ prevent'the getaoperating said brake-shoe.

2. In a sawmill setworks, the combination with headblock knees, a shaft carrying-a pinion engaging therewith, a ratchetawh'ee'l andbrake drum keyed to said shaft, a checkpawl engaging said ratchet-wheel, a pivoted pawl lever, a pawl engaging said ratchetwheel to impart movement thereto in one direction, a brake-shoe engaging said brake drum adapted normally to prevent the rotation of said drum in the opposite direction, apull-rod pivoted for rotary movei'nent' upon the outer end of said pawl lever, and means connected to said rotary pull rod for raising saidpawls and operating said brake.

3. In a sawmill setworks, the combination with headblock knees, a shaftcarrying a pinion engaging therewith, a ratchet-wheel and brake-drum keyed to-said shaft, a spring 1 fixed atone end and secured to said shaft at its, opposite end, a plvoted check-pawl engaging said rat'chet-wheel, a pivoted pawl,

lever carrying a pawl 'engaging and adapted to rotate said ratchet-wheel against the tension. of said spring, a brake shoe normally held against said brake drum to prevent its rotation in one direction, a pull-rod rotatably mounted at theouter end of said pawl lever, a pawl-lifter actuated by said rotary pull-rod for progressively lifting saidpawls and operating said brake.

4. In a sawmill setworks, the combination with headblock knees, a shaft carrying a pinion engaging therewith, a ratchet-wheel and brake drum keyed to said shaft, a spring fixed at one end and secured to said shaft at its opposite end, a pivoted check pawl engaging said ratchet-wheel, a pivoted "pawl lever carrying a pawl engaging said ratchet wheel adapted to 'rotate said ratchetrwhee'l against thetension of said spring, a pivoted bell-crank, a brake-shoe pivoted thereto adapted normally to rest against said brakedrum to prevent its rotation against the ten sion of said spring, a pull-rod rotatably mounted at the outer; end of said pawl-lever, a pivoted pawlelifter arranged beneath said pawls, said pawl-lifter having. a lug adapted to engage said bell-crank whereby the pawls are raised and the brake disengaged from said brake-drum.

5. Ina sawmill setworks, the combination of a set shaft, a ratchet wheel, and brakedrum keyed to said shaft, pawls,-engagin-g said ratchet-wh-eel, a brakeashoe engaging the bralrerdrum adapted automatically to prevent the backward rotation of the-drum, and combined means for progressivelydisa engaging the parade and operating the brake.

:6. In a sawgmill setworks, the combination of a set shaft, means for-selectively moving said set shaft forward, a brake dram for said sharaa brake 5120.8 for engaging the lorake drum to automatically apply a loraking power to said set shaft, and combined means for progressivelydisengaging the forward moving means and for operating the brake.

7 In a saw-mill setworks, the combination of a set shaft, means for moving said set shaft forward, a brake drum for said set vshaft, a brake shoe in position to engage the brake drum to antomatioally'prevent back motion of the set shaft, and'means for pro-,

gressively disengaging the forward operating means and for operating the brake shoe" and disengaging. said forward operating means and for applying the brake, said means applying said brake prior to the engagement of said forward operating means.

' 9. In a sawmill setworks, the combination of a set shaft, means for moving vsaid set shaft forward, a brake drum for said set: shaft, abrake shoe in position to engage said drum to automatically prevent backmotion" of the set shaft, means for engaging said forward operating means and for. applying'the brake,'and means for causing-the brake to engage the'drum prior to the engagement of the forward operating means.

10. In a's'aw-mill setworks, the combina tionfofa setshaftfa ratchetwheel fixed thereon, an operating pawl for said ratchet wheel, abrake drum for said"set1sl'1aft, a

brake shoe in position to "engage, said brake drum to automatically, prevent back motion of-theset shaft, and means for moving-the pay'vl and brake-shoe into and out of engagement with tlievratchet wheel and thebrake drum, said means caus ng the brake shoe to the pawl with the ratchet wheel.

en age the drum Jrior' to the en a ementofj D x. b

ture.

In testimony whereof IafiiX my signa- H v GEORGE EQCAMPBELL;

US739636A 1924-09-24 1924-09-24 Combined setwork and recede for sawmill carriages Expired - Lifetime US1590988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US739636A US1590988A (en) 1924-09-24 1924-09-24 Combined setwork and recede for sawmill carriages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US739636A US1590988A (en) 1924-09-24 1924-09-24 Combined setwork and recede for sawmill carriages

Publications (1)

Publication Number Publication Date
US1590988A true US1590988A (en) 1926-06-29

Family

ID=24973179

Family Applications (1)

Application Number Title Priority Date Filing Date
US739636A Expired - Lifetime US1590988A (en) 1924-09-24 1924-09-24 Combined setwork and recede for sawmill carriages

Country Status (1)

Country Link
US (1) US1590988A (en)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987931A (en) * 1959-07-27 1961-06-13 John P Adams Ratchet
US20020017180A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake mechanism for power equipment
US20020020262A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Logic control for fast-acting safety system
US20030005588A1 (en) * 2001-07-03 2003-01-09 Gass Stephen F. Actuators for use in fast-acting safety systems
US20030058121A1 (en) * 2001-09-24 2003-03-27 Gass Stephen F. Logic control with test mode for fast-acting safety system
US20030131703A1 (en) * 2002-01-16 2003-07-17 Gass Stephen F. Apparatus and method for detecting dangerous conditions in power equipment
US20030140749A1 (en) * 2002-01-25 2003-07-31 Gass Stephen F. Brake Pawls for power equipment
US20040173430A1 (en) * 2003-03-05 2004-09-09 Gass Stephen F. Retraction system and motor position for use with safety systems for power equipment
US20050039586A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Brake cartridges for power equipment
US20050039822A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Woodworking machines with overmolded arbors
US20050041359A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US20050066784A1 (en) * 2000-09-29 2005-03-31 Gass Stephen F. Safety methods for use in power equipment
US20050139058A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Brake cartridges and mounting systems for brake cartridges
US20050139057A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Table saws with safety systems
US20050139051A1 (en) * 2000-08-14 2005-06-30 Gass Stephen F. Brake positioning system
US20050139056A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Fences for table saws
US20050155473A1 (en) * 2003-12-31 2005-07-21 Gass Stephen F. Dectection systems for power equipment
US20050166736A1 (en) * 2004-01-29 2005-08-04 Gass Stephen F. Table saws with safety systems and systems to mount and index attachments
US20050178259A1 (en) * 2001-08-13 2005-08-18 Gass Stephen F. Miter saw with improved safety system
US20050204885A1 (en) * 2002-01-14 2005-09-22 Gass Stephen F Miter saw with improved safety system
US20050274432A1 (en) * 2000-09-29 2005-12-15 Gass Stephen F Router with improved safety system
US20060000337A1 (en) * 1999-10-01 2006-01-05 Gass Stephen F Band saw with safety system
US20060032352A1 (en) * 2000-09-18 2006-02-16 Gass Stephen F Translation stop for use in power equipment
US20060123964A1 (en) * 2000-09-29 2006-06-15 Gass Stephen F Table saw with improved safety system
US20060123960A1 (en) * 2001-08-13 2006-06-15 Gass Stephen F Safety systems for power equipment
US7137326B2 (en) 2000-08-14 2006-11-21 Sd3, Llc Translation stop for use in power equipment
US7171879B2 (en) 2001-07-02 2007-02-06 Sd3, Llc Discrete proximity detection system
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US7231856B2 (en) 2001-06-13 2007-06-19 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7284467B2 (en) 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US7421315B2 (en) 2001-11-13 2008-09-02 Sd3, Llc Detection system for power equipment
US7481140B2 (en) 2005-04-15 2009-01-27 Sd3, Llc Detection systems for power equipment
US7525055B2 (en) 1999-10-01 2009-04-28 Sd3, Llc Switch box for power tools with safety systems
US7610836B2 (en) 2000-08-14 2009-11-03 Sd3, Llc Replaceable brake mechanism for power equipment
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment

Cited By (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987931A (en) * 1959-07-27 1961-06-13 John P Adams Ratchet
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US7788999B2 (en) 1999-10-01 2010-09-07 Sd3, Llc Brake mechanism for power equipment
US9969014B2 (en) 1999-10-01 2018-05-15 Sawstop Holding Llc Power equipment with detection and reaction systems
US9925683B2 (en) 1999-10-01 2018-03-27 Sawstop Holding Llc Table saws
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US9522476B2 (en) 1999-10-01 2016-12-20 Sd3, Llc Power equipment with detection and reaction systems
US7525055B2 (en) 1999-10-01 2009-04-28 Sd3, Llc Switch box for power tools with safety systems
US20060000337A1 (en) * 1999-10-01 2006-01-05 Gass Stephen F Band saw with safety system
US10335972B2 (en) 1999-10-01 2019-07-02 Sawstop Holding Llc Table Saws
US7621205B2 (en) 1999-10-01 2009-11-24 Sd3, Llc Band saw with safety system
US7347131B2 (en) 1999-10-01 2008-03-25 Sd3, Llc Miter saw with improved safety system
US8408106B2 (en) 1999-10-01 2013-04-02 Sd3, Llc Method of operating power equipment with detection and reaction systems
US8196499B2 (en) 1999-10-01 2012-06-12 Sd3, Llc Power equipment with detection and reaction systems
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US8191450B2 (en) 2000-08-14 2012-06-05 Sd3, Llc Power equipment with detection and reaction systems
US8151675B2 (en) 2000-08-14 2012-04-10 Sd3, Llc Logic control for fast-acting safety system
US7284467B2 (en) 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7600455B2 (en) 2000-08-14 2009-10-13 Sd3, Llc Logic control for fast-acting safety system
US20050139051A1 (en) * 2000-08-14 2005-06-30 Gass Stephen F. Brake positioning system
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US8522655B2 (en) 2000-08-14 2013-09-03 Sd3, Llc Logic control for fast-acting safety system
US9038515B2 (en) 2000-08-14 2015-05-26 Sd3, Llc Logic control for fast-acting safety system
US7024975B2 (en) * 2000-08-14 2006-04-11 Sd3, Llc Brake mechanism for power equipment
US7228772B2 (en) 2000-08-14 2007-06-12 Sd3, Llc Brake positioning system
US20020020262A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Logic control for fast-acting safety system
US20020017180A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake mechanism for power equipment
US7137326B2 (en) 2000-08-14 2006-11-21 Sd3, Llc Translation stop for use in power equipment
US7610836B2 (en) 2000-08-14 2009-11-03 Sd3, Llc Replaceable brake mechanism for power equipment
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US7359174B2 (en) 2000-08-14 2008-04-15 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US20060032352A1 (en) * 2000-09-18 2006-02-16 Gass Stephen F Translation stop for use in power equipment
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US20050066784A1 (en) * 2000-09-29 2005-03-31 Gass Stephen F. Safety methods for use in power equipment
US20060123964A1 (en) * 2000-09-29 2006-06-15 Gass Stephen F Table saw with improved safety system
US7784507B2 (en) 2000-09-29 2010-08-31 Sd3, Llc Router with improved safety system
US20050274432A1 (en) * 2000-09-29 2005-12-15 Gass Stephen F Router with improved safety system
US9927796B2 (en) 2001-05-17 2018-03-27 Sawstop Holding Llc Band saw with improved safety system
US7231856B2 (en) 2001-06-13 2007-06-19 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7171879B2 (en) 2001-07-02 2007-02-06 Sd3, Llc Discrete proximity detection system
US7591210B2 (en) 2001-07-02 2009-09-22 Sd3, Llc Discrete proximity detection system
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
US20030005588A1 (en) * 2001-07-03 2003-01-09 Gass Stephen F. Actuators for use in fast-acting safety systems
US7353737B2 (en) 2001-08-13 2008-04-08 Sd3, Llc Miter saw with improved safety system
US20050178259A1 (en) * 2001-08-13 2005-08-18 Gass Stephen F. Miter saw with improved safety system
US20060123960A1 (en) * 2001-08-13 2006-06-15 Gass Stephen F Safety systems for power equipment
US7197969B2 (en) 2001-09-24 2007-04-03 Sd3, Llc Logic control with test mode for fast-acting safety system
US20030058121A1 (en) * 2001-09-24 2003-03-27 Gass Stephen F. Logic control with test mode for fast-acting safety system
US7421315B2 (en) 2001-11-13 2008-09-02 Sd3, Llc Detection system for power equipment
US7290472B2 (en) 2002-01-14 2007-11-06 Sd3, Llc Miter saw with improved safety system
US20050204885A1 (en) * 2002-01-14 2005-09-22 Gass Stephen F Miter saw with improved safety system
US20030131703A1 (en) * 2002-01-16 2003-07-17 Gass Stephen F. Apparatus and method for detecting dangerous conditions in power equipment
US20030140749A1 (en) * 2002-01-25 2003-07-31 Gass Stephen F. Brake Pawls for power equipment
US7098800B2 (en) 2003-03-05 2006-08-29 Sd3, Llc Retraction system and motor position for use with safety systems for power equipment
US20040173430A1 (en) * 2003-03-05 2004-09-09 Gass Stephen F. Retraction system and motor position for use with safety systems for power equipment
US20050041359A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US20050039586A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Brake cartridges for power equipment
US7472634B2 (en) 2003-08-20 2009-01-06 Sd3, Llc Woodworking machines with overmolded arbors
US20050039822A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Woodworking machines with overmolded arbors
US7350445B2 (en) 2003-08-20 2008-04-01 Sd3, Llc Brake cartridge for power equipment
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US20050155473A1 (en) * 2003-12-31 2005-07-21 Gass Stephen F. Dectection systems for power equipment
US8122807B2 (en) 2003-12-31 2012-02-28 Sd3, Llc Table saws with safety systems
US8087438B2 (en) 2003-12-31 2012-01-03 Sd3, Llc Detection systems for power equipment
US20050139056A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Fences for table saws
US20050139057A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Table saws with safety systems
US7536238B2 (en) 2003-12-31 2009-05-19 Sd3, Llc Detection systems for power equipment
US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
US8489223B2 (en) 2003-12-31 2013-07-16 Sd3, Llc Detection systems for power equipment
US8498732B2 (en) 2003-12-31 2013-07-30 Sd3, Llc Detection systems for power equipment
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
US7827893B2 (en) 2003-12-31 2010-11-09 Sd3, Llc Elevation mechanism for table saws
US7866239B2 (en) 2003-12-31 2011-01-11 Sd3, Llc Elevation mechanism for table saws
US9623498B2 (en) 2003-12-31 2017-04-18 Sd3, Llc Table saws
US7991503B2 (en) 2003-12-31 2011-08-02 Sd3, Llc Detection systems for power equipment
US20050139058A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Brake cartridges and mounting systems for brake cartridges
US8505424B2 (en) 2004-01-29 2013-08-13 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
US20050166736A1 (en) * 2004-01-29 2005-08-04 Gass Stephen F. Table saws with safety systems and systems to mount and index attachments
US10052786B2 (en) 2004-01-29 2018-08-21 Sawstop Holding Llc Table saws with safety systems and systems to mount and index attachments
US7827890B2 (en) 2004-01-29 2010-11-09 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
US7481140B2 (en) 2005-04-15 2009-01-27 Sd3, Llc Detection systems for power equipment

Similar Documents

Publication Publication Date Title
US6378668B1 (en) Spring applied parking brake assembly having a manual quick release feature
US4546298A (en) Electric actuators
US1830740A (en) Freight handling device
US4033435A (en) Retainer mechanism for vehicle brake actuators
US4493246A (en) Brake cylinder with two pistons
US2253824A (en) Caster for application to vehicles
US2400739A (en) Apparatus for supplying wire from wire supply spools to bending presses
AU2004201824A8 (en) Spring applied parking brake assembly having a manual quick release feature
US8172045B2 (en) Remote hand brake
US1936713A (en) Winch clutch and brake
GB1274844A (en) Improvements in or relating to vehicle drum brakes
US7487695B2 (en) Release holding mechanism for ASR hand brake
AU2004201265B2 (en) Release hold mechanism for a hand brake having a quick release mechanism
US2267037A (en) Hand brake mechanism
US1892541A (en) Automatic brake control
US3250348A (en) Overspeed brake for elevator cage
GB1191263A (en) Improvements in Disc Brakes
GB1303127A (en)
US3990546A (en) Automatic adjuster for brakes
GB1016224A (en) Automatic brake adjusting mechanism
US3249183A (en) Double acting slack adjusters
US2146622A (en) Sweep operated windlass
CN1047659A (en) Fork-lift truck controlled with hand-powered mechanism
US3416635A (en) Brake cylinder device
US3374867A (en) Automatic device for taking up wear in the linings of brakes