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Publication numberUS180169 A
Publication typeGrant
Publication dateJul 25, 1876
Filing dateJun 28, 1876
Publication numberUS 180169 A, US 180169A, US-A-180169, US180169 A, US180169A
InventorsStephen P. M. Taskeb
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in expanding mandrels
US 180169 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

s.-1=.m. TASKER.

EXPANDING MAN'DRELS.

Patented July 25, 1876.

*1 MI W II III v minesws & S xxvxm Nv PETERS. FNGTO-UTHOGRAFHER, WASHINGTON, D. C.

UrrED STATES PA ENT orrroa STEPHEN P. M. TASKER, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT m ExPANome MANDRELSV Specification forming part of Letters Patent No. 180,169, dated July 25,1576; application filed June 28, 1876.

To all whom it may concern:

Be it known that l, STEPHEN P. M. TAS- KER, of the city and county of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in Expanding Ma-ndrels, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.

The nature of my invention consists in the division of the mandrel into tapered longitudinal sections, the wide end of every alternate section being at one end of the mandrel, and the wide end of the intermediate sections at the other end. The edges of the sections eter, and when they'are moved in an opposite direction the diameter is expanded. In order to accomplish these results, so as to accommodate themandrel to difl'erent sizes of tubes, I connect the large endsof every alternate section with a flange held thereon by means of screws or pins, which are allowed play in radial slots, the said flange being fast on' a central rod. The large ends of the intermediate sections are in like manner connected with a similar flange, which is fast on one end of a central tube or socket. The rod is operated by means of a nut on its outer end, or by a lever or any other suitable device, whereby the mandrel is expanded or contracted in the direction of its length, .for the;

A A A are three tapered longitudinal sec-.

tions of the mandrel, and A A A are intermediate sections of the same form, but in a reversed position, whereby their narrow ends come between the broad ends of the former. The broad ends of the sections A A A are held against the flange B by means of screws 'or pins 1), there being radial slots 01 in the flange to admit of the expansion and contraction of the sections. Thesections A A A are connected in like manner with the flange. B by means of the screws I), which pass through the radial slots d of the flange. The'sections are held together by means of the male and female dovetails e 6, whereby they are permittedto move freely in the direction of their'lengths, for the expansion and contraction ofv the mandrel, and their peripheral surfaces kept at all times even with each other.

, G is a central 'rod, one end of which is permanently connected with the flange B. It. has a longitudinal movement in the tube or socket D, one end of which is fast to the By the longitudinal movement of the rod in thedirection of the arrows seen in Fig.1, the two setsof sections. A and A having their wide ends drawn nearer each other, the mandrel is expanded in its diameter, as seen-in said Fig. 1; andwhen therod is moved in the opposite direction, (indicated by the arrowin Fig. 5,) so as to cause said broad ends to recede from each other,

the diameter is contracted, as seenin said To effect the longitudinal movement of the rod C have a nut,f, on its outer end, as represented in the drawing, or else employ a lever or any other convenient device, whereby a like result is produced.

I have shown three sections in each set,

but do not confine myself to the use of this number, as two or any higher number may be used.

The combination of the rod 0 and tube D may be dispensed with by having a rod proexpansion and con raction of the diameter of or socket D with the flanges B and B and the mandrel, substantially as set fort-h. sections A and A, the rod being operated 2. The combination of the sections A and by means of the nutfor other suitable device,

A, having screws or pins 11 b in their ends, substantially as set forth.

with the flanges B and B, having radial slots STEPHEN P. M. TASKER. d d, substantially as and for the purpose set Witnesses: i forth. THOMAS J. BEWLEY,

3. The combination of the rod 0 r and tube STEPHEN USTICK.

Referenced by
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US2558845 *Mar 3, 1945Jul 3, 1951Smith Corp A OPropeller shank forming press
US2559824 *Nov 12, 1947Jul 10, 1951George H LelandMethod of winding layer wound magnet coils
US2694376 *Jan 10, 1951Nov 16, 1954Hauser Joseph EExpandable mandrel
US2712249 *Mar 10, 1950Jul 5, 1955Continental Foundry & MachineMachine for flattening internal beads in welded tubing
US2781548 *Jun 22, 1953Feb 19, 1957Coats & ClarkCores and dies for producing hollow bodies
US2900075 *May 28, 1957Aug 18, 1959Rizzitano Fortunato JCollapsible plunger head
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US3503630 *Aug 1, 1966Mar 31, 1970Thomas Frank JAngular die set for changing the direction of the tool pressure stroke in a punch press
US4405075 *May 11, 1981Sep 20, 1983Combustion Engineering, Inc.Structure for aligning and butt-welding tube ends
US5522785 *Sep 29, 1994Jun 4, 1996Minnesota Mining And Manufacturing CompanyInfinitely variable diameter roller
US5954462 *Aug 12, 1998Sep 21, 1999Climax Portable Machine Tools, Inc.Spot facing machine
US6546867 *Apr 30, 2001Apr 15, 2003Heidelberger Druckmaschinen AgVariable-diameter cylindrically-shaped body
US6792859 *Feb 27, 2003Sep 21, 2004Fuji Photo Film Co., Ltd.Rotating drum and image recording device
US7114559 *Feb 6, 2003Oct 3, 2006Baker Hughes IncorporatedMethod of repair of collapsed or damaged tubulars downhole
US7669665 *Dec 5, 2006Mar 2, 2010GeoservicesMandrel for introduction into a fluid circulation duct, and related production well
US7748718 *Jul 6, 2010The Gleason WorksExpanable mandrel
US7921921 *Sep 24, 2008Apr 12, 2011Baker Hughes IncorporatedDownhole backup system and method
US8083001 *Dec 27, 2011Baker Hughes IncorporatedExpandable gage ring
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US20030172829 *Feb 27, 2003Sep 18, 2003Takashi FukuiRotating drum and image recording device
US20060284383 *Jun 16, 2006Dec 21, 2006Brettell Charles EExpandable mandrel
US20070131413 *Dec 5, 2006Jun 14, 2007Francois MilletMandrel for introduction into a fluid circulation duct, and related production well
US20100071908 *Mar 25, 2010Baker Hughes IncorporatedDownhole backup system and method
US20110048744 *Aug 27, 2009Mar 3, 2011Baker Hughes IncorporatedExpandable Gage Ring
CN1298532C *Apr 5, 2002Feb 7, 2007海德堡印刷机械股份公司Printing device with variable diameter cylinder and its diameter changing method
DE1211887B *Jun 3, 1964Mar 3, 1966Albert DenkerSpreiz- und einziehbare Wickeltrommel fuer schwere Bandwickelbunde
DE19832503A1 *Jul 20, 1998Jan 27, 2000Schaeffler Waelzlager OhgManufacturing rotation symmetrical molded article with undercuts, slots, cavities or threading on inside, by placing removable splay sleeve inside article and then drawing it inside mold
EP1254856A2 *Apr 9, 2002Nov 6, 2002Heidelberger Druckmaschinen AktiengesellschaftCylindrical body of a machine processing printed web material
EP1345405A2 *Mar 5, 2003Sep 17, 2003Fuji Photo Film Co., Ltd.Rotating drum and image recording device
EP1731460A1 *Apr 9, 2002Dec 13, 2006Goss International Americas, Inc.Cylindrical body of a machine processing printed web material