Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1570177 A
Publication typeGrant
Publication dateJan 19, 1926
Filing dateJan 29, 1923
Priority dateJan 29, 1923
Publication numberUS 1570177 A, US 1570177A, US-A-1570177, US1570177 A, US1570177A
InventorsPointer James B
Original AssigneePointer James B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanding block
US 1570177 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

`.1.- B. POINTER Jan. 19 1926.

SANDI NG BLOCK Filed Jan. 29, 1923 III III III' Il TIM/mmm LIAMESBPDNTERJ WM WM *Mm abbo/MW) Patented Jan. 19, 1926.




Application led January 29, 1923. Serial No. 615,589.

To all whom t may concern:

Be it known that I, JAMES B. POINTER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented 'certain new and useful Improvements in Sanding Blocks, of which the following is a speciflcation.

The present invention relates to an improvement in a smoothing and polishing tool adapted to be held and manipulated by hand, and the device is particularly constructed to expedite and facilitate sandpapering or similar abrasive or polishing operations upon irregular, curved or angular surfaces, using sand paper, emery cloth or equivalent material with the tool. In the annexed drawing Fig. 1 is a perspective view of the tool as it appears held in the hand and applied to a molding. Fig. 2 is an enlarged sectional view transversely of the tool and a piece of work. Fig. 3 is a perspective view of the tool alone. Fig. 4 is a perspective view of one of the adjustable former blades for the tool, and Fig. 5 is a perspective view of one of the clamping bolts.

The tool comprises an arched member 2 made of sheet-metal possessing spring properties and approximately four or five inches long and three or four inches wide to permit the same to be easily grasped'and held in the hand. The side walls 3 3 of this member depend from and are set inwardly in respect to the round reverted por tions 4 4 of the crown or arch 5, thereby ,affording a better grip for the thumb and fingers of the hand and also providing fiat vertical surfaces against which the opposite end portions 6 6 of a sheet of sand-,paper 7 may be pressed tightly by the thumb and fingers when this sheet is wrapped around or overlaps the doubled or folded bottom edges 8 of side walls 3 3. A relatively large number of thin metal blades 9 having correspondingly slotted vertical extensions 10 at their opposite ends are mounted loosely face to face within member 2 and form a. laminated body or block adapted to project more or less below edges 8 of spring clamping walls 3 3. A pair of bolts Il ll pass through suitable openings within the side walls and through the vertical slots 12 in the blade extensions and a thumb nut 14 engages the screw threaded end of the bolt outside of one of the side walls. The head end of each bolt has a square neck 15 or equivalent part adapted to seat within a like-shaped opening in the side wall to prevent the bolt from turning when the thumbnut is tightened. When the thumb nuts are loosened slightly the blades are free to slide vertically in respect to each other and the clamping holder 2, and in placing the loose assembly upon a curved, angular or irregular shaped surface, for example a conge or cyma reversa molding 16, each blade will assume a position of rest according to-its place of linear contact with such surface and the bottom side of the laminated block will conform closely to the cross-sectional pattern of the molding. The blades may then be clamped tightly together by turningfthe thumb-nut, and the operator may then place the sheet of sand paper 7 upon the molding and press the block down upon it until this sheet also conforms to the pattern. The edge portions 6 of the sandpaper sheet are free so that they may be pressed against the outer side of walls 3 and held firmly by the thumb and fingers of the hand in moving the tool back and forth over the work while bearing down upon the tool. If desired the blades may also be fixed in a tilted or angular position longitudinally within the clamping member 2, the slots 12 permitting one end of the blades to be raised and the other lowered relatively to the bottom edges 8. As shown and described the tool is simply constructed and inexpensive t0 make, and possesses sufficient weight to make its use effective without applying much pressure, and it may also be quickl adjusted land converted to fit any curve or angular surface to be rubbed or polished.

What I claim, is:

A smoothing and finishinff tool, comprising a clamping hand-hold member made of spring metal having an arched top and straight depending side walls connected by reverted spring portions, whereby a set of i ou blades placed between said side Walls mav patterns of Work to be operated upon, and be held frietionally in Contact in Various adclamping bolts extending through said side justed positions, in combination With a plu- Walls and said blades adapted to positively 10 rality of thin metal blades adjustably clamp the blades When adjusted.

mounted between said Walls adapted to eX- In testimony whereof, I aHiX my signatend variable distances beneath the bottom ture hereto.

edges thereof conformable with different JAMES B. POINTER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3456399 *Nov 16, 1966Jul 22, 1969Corning Glass WorksPressure chuck
US3497930 *Apr 27, 1966Mar 3, 1970Oconnor Thomas JohnMethod of abrasively shaping an electrode for electric discharge machining
US3813830 *Sep 29, 1972Jun 4, 1974Hodge MDoorframe sander
US3998012 *Apr 10, 1974Dec 21, 1976Reuben NessAbrading article
US4196548 *Apr 10, 1978Apr 8, 1980Hahn Norman GSanding apparatus
US4206574 *Sep 26, 1978Jun 10, 1980The Singer CompanyLapping block for curved surfaces
US4279103 *Dec 7, 1979Jul 21, 1981Jesse RodarteHand tool for use in sanding louver boards
US4535574 *Oct 25, 1982Aug 20, 1985Reich Spezialmaschinen GmbhSanding tool and method of making such tool
US4571893 *Mar 23, 1984Feb 25, 1986Gerd BraaschRotary grinding tool
US5050308 *Nov 20, 1989Sep 24, 1991Walsh David CTool guide and contour sander for use therewith
US5140784 *Jul 22, 1991Aug 25, 1992Walsh David CTool guide and contour sander for use therewith
US6023015 *Feb 23, 1999Feb 8, 2000Vale; Raymond J.Piano hammer shaping tool
US6086462 *Dec 30, 1997Jul 11, 2000Brown; Thomas J.Coping and profile cutting and/or sanding apparatus
US6116999 *Jan 29, 1998Sep 12, 2000Montross; Christopher G.Sander for a bullnose cornerbead and method of use
US6120365 *Mar 7, 1996Sep 19, 2000Johnson; Bryan T.Formable spreader/sander
US6283842 *Apr 1, 1999Sep 4, 2001John William CollinsSanding apparatus
US6494771Dec 22, 2000Dec 17, 2002Gerald CarlsonSanding board having configurable, contourable base
US6729088 *Feb 5, 2002May 4, 2004Shannon L. CorrPositioning jig for installing molding
US7553219 *Sep 8, 2006Jun 30, 2009Robert James RommerLouver sander
US7621802Aug 26, 2002Nov 24, 20093M Innovative Properties CompanyCorner sanding sponge
US7913729Nov 21, 2006Mar 29, 2011Anthony BrcichMolding coping fixture
US8496399 *Jan 9, 2012Jul 30, 2013Advant-Edge Paving Equip, LLCLongitudinal pavement joint and apparatus for making
US8968057 *Jul 22, 2013Mar 3, 2015Yadin MorTechnologies for hand sanding
US20110239392 *Apr 2, 2010Oct 6, 2011Levy Richard CBrush with a variable edge
US20120122379 *Sep 22, 2006May 17, 2012Mcdonell Timothy JFoam Finishing Device
US20120189387 *Jan 9, 2012Jul 26, 2012Gary MittlemanLongitudinal Pavement Joint and Apparatus for Making
WO1991007288A1 *Nov 15, 1990May 21, 1991David C WalshTool guide and contour sander for use therewith
WO2002055267A1 *Jan 9, 2002Jul 18, 2002Fischer JosefAdjustable sanding block
WO2007018587A1 *Jan 17, 2006Feb 15, 2007Carpenter StaceyPolishing device for stone and other hard materials
WO2008135847A1 *May 5, 2008Nov 13, 2008Ira KozakAbrading device
U.S. Classification451/495, 451/523, 15/231
International ClassificationB24D15/00
Cooperative ClassificationB24D15/00
European ClassificationB24D15/00