US2155705A - Adjustable template means - Google Patents

Adjustable template means Download PDF

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Publication number
US2155705A
US2155705A US135707A US13570737A US2155705A US 2155705 A US2155705 A US 2155705A US 135707 A US135707 A US 135707A US 13570737 A US13570737 A US 13570737A US 2155705 A US2155705 A US 2155705A
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Prior art keywords
clamping
toggle
pipe
handle
band
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Expired - Lifetime
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US135707A
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Norman K Gottwald
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Norman K Gottwald
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/42Patterns; Masters models
    • 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
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/14Bale and package ties, hose clamps
    • Y10T24/1412Bale and package ties, hose clamps with tighteners
    • Y10T24/1418Self-locking [dead center or snap action]
    • Y10T24/142Adjustable girth
    • 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
    • Y10T29/00Metal working
    • Y10T29/44Filing
    • 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
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/536Piston ring inserter or remover

Description

pril 25, 1939. N. K. GoTrwALD ADJUSTABLE TEMPLATE MEANS Filed April 8, 1957 llllllllllll Patented Apr. 25h, 1939 UNirED STATES PATENT OFFICE 10 Claims.

My invention relates to templates, jigs, and similar devices for use with articles to be machined, cut, or otherwise processed, more particularly to such devices having adjustable clamping 5 means for positively gripping articles of varying dimensions, and has for an object the provision of simple, reliable, and inexpensive devices of this character.

Templates or jigs of this general character have l heretofore been provided with relatively movable portions for spanning the article to be machined or cut and with means for drawing the relatively movable portions together positively to grip the article. Considerable diiculty has been encountered in devices of this character, particularly in connection with templates for use in cutting pipe elbows from straight lengths of pipe, due to the fact that the pipe to be cut may vary in diameter to such an extent as seriously to affect 20 the gripping action of the template. Thus, templates heretofore used have comprised a split band adapted to surround the pipe, and it will be apparent that if conventional non-adjustable clamping means are provided for drawing the 25 split ends or the band together, considerable dimculty may arise due to variations in the diameter of the pipe. If the diameter of the pipe is too great it may be impossible to completely close the clamping means without deforming the pipe, and if the pipe diameter is too small closure of the clamping means may not eiect the positive gripping action desired.

In an attempt to provide adjustability for template means of this character, it has also been proposed to provide screw type clamping means having rightand left-hand threads arranged to co-operate with the ends of the split band so as to draw these ends together when the threaded means is rotated. In order to provide the desired gripping action, it is, of course, necessary to use threads of relatively fine pitch and, accordingly, a considerable time may be required to effect gripping or releasing oi' the pipe. Fur- 4 thermore, the degree of gripping action obtained to grip objects the external dimensions of which vary within wide limits.

In carrying out my invention in one form, I y provide template means comprising relatively movable gripping portions for spanning the ob- 5 ject to be processed, toggle means pivotally connected to one of the gripping portions, and resilient means interposed between the toggle means and the other of the gripping portions for exerting a force tending to draw the gripping portions together positively to grip the object when the toggle means is moved to its clamping position, the resilient means being arranged automatically to compensate for variations in the external dimensions of the object being gripped. i6

More particularly the template may comprise an axially split band adapted to surround a pipe to be cut, the split edges of the band being movable toward each other to cause the band to grip the pipe, and the toggle means may comprise a handle pivotally supported on one of the edges and pivotally engaged by a link which forms therewith an operating toggle. 'I'he other end of this link engages means for guiding this end of the link for reciprocal movement, and the knee point of the -toggle is arranged to pass through its straight line position when the handle is moved between its clamping and its releas- 1 ing positions. Interposed between the reciprocally movable end of the link and the other edge of the split band, I provide spring means adapted to be stressed by movement of the linkV for exerting on the band a force tending to draw the edges thereof together so as positively to grip the pipe, and an adjustable connection is provided between the spring means and the toggle link so that the template may be adjusted to provide for major variations in the pipe diameter, the spring means automatically compensating for minor variations in the pipe diameter. Since the knee point of the toggle passes through its straight line position during movement of the handle between its clamping and releasing positions, the spring means exerts on the toggle formed by the handle and the link a force which reverses as the toggle passes through its straight line position and, accordingly, the spring means selectively biases the handle to either its clamping position or its releasing position upon operation thereto.

For a more complete understanding of my invention, reference should now be had to the drawing in which:

Figure 1 is a plan view of template means embodying my invention for use in cutting o" lengths of pipe;

Fig. 2 is a side view oi' the device shown in Fig. 1;

Fig. 3 is a. sectional view taken along the line 3-3 of Fig. 1 showing the template in its clamping position, certain partsy being shown in elevation more clearly to illustrate the construction;

Fig. 4 is a fragmentary enlarged view showing the template means in its releasing position;

Fig. 5 is a sectional view taken along the line 5-5 of Fig. 4; and

Fig. 6 is an elevational view partly in section of a modiiled form of template embodying my invention.

Referring now to Figs. 1 to 5, inclusive, I have shown my invention as applied to a template comprising a split band I0 adapted to surround a pipe II which is to be cut, the edges of the band III being provided with suitable beads I2 for guiding a cutting toolin` a manner well known in the art. Since the cutting apparatus ordinarily used with templates of. this character for cutting pipe elbows from straight lengths of pipe is well known in the art and constitutes no part of the present invention, such cutting apparatus has not been shown. Such cutting apparatus, for example, may comprise a pair of inner end outer cutting rolls having circumferential knife edges arranged progressively to cut the pipe as the cutting mils move about the periphery thereof, the outer cutting roll being provided with a groove for receiving the guide bead I2 on the split band I0. One of the split edges of the band I0 is provided with a tongue I3 which extends in interlapping relation with the other edge of the band so as to guide the split edges for movement toward each other positively to grip the pipe when the clamping means to be hereinafter described is operated to its clamping position.

In the preferred embodiment of my invention shown, the clamping means is of the type known in the art as toggle means and comprises a handle I4 one end of which is pivotally mounted on a pin I5 carried by a supporting member I6 which is rigidly secured to one edge of the split band I0 in any suitable manner as, for example, by the bolts and nuts I1 and I8, respectively, the heads of the bolts I1 being countersunk as shown in Fig. 3. Intermediate its ends the handle I 4 carries a pivot pin I9 for pivotally engaging one end of a bifurcated link 20, the other end of which pivotally engages a pin 2| extending through and carried by a reciprocating member 22 journaled for reciprocal movement in a supporting member 23 which is secured by suitable bolts and nuts 24 and 25, respectively, to the other edge of the split band I0.

As shown, the supporting member 23 is provided with an outwardly extending portion having an aperture 26 therein (Fig. 5) through which the reciprocal member 22 extends, and a spring 21 is provided surrounding the reciprocal member 22 with one end oi the spring engagingv a spring seat '28 which abuttingly engages the extending portion of the support 23, and the other end of the spring engaging a spring seat 29 which abuttingly engages an adjustable member or nut 30, which nut threadedly engages the outermost end of the reciprocal member 22.

It wuithus be seen that the reciprocal member 22 and the support 23 constitute guide means for guiding one end of the link 20 for reciprocal movement, and the link 20 in co-operation with the handle I4 forms a toggle the knee point of which is formed by the pivot pin Il.

In Fig. 4 the template means is shown with the handle Il and the toggle formed by the handle and the link 20 in their respective releasing positions, in which positions the spring 21 is relaxed and the band I0 accordingly does not grip the pipe II. It will be apparent that when the handle I4 is moved from the releasing position shown in Fig. 4 to the clamping position shwn in Fig. 3, the toggle will be moved towards its straight line position so as to move the righthand end of the link 20 in a left-hand direction and stress the spring 21, the spring 21 thereupon exerting a force upon the band I0 which force tends to draw the edges o! the band together so that the band positively grips the pipe II. In the clamping position shown in Fig. 3, the knee point of the toggle formed by the pivot pin I9 has passed slightly beyond the straight line position of the toggle, and, accordingly, the spring 21 exerts on the link 20 and the handle Il a force which tends to rotate the handle Il in a clockwise direction about the pivot pin I6. Movement of the handle I4 in this direction is prevented, however, by a stop pin 3l which extends outwardly from the handle I 4 for abutting engagement with the support I6. It will likewise be apparent that when4 the handle I4 is moved from the position shown in Fig. 3 toward the releasing positon shown in Fig. 4, the stress on the spring 21 decreases so as to release the grip of the band- I0 on the pipe II, and the force exerted by the spring on the toggle is reversed as soon as the knee point I9 of the toggle passes through its straight line position so that the spring thereafter biases the handle I 4 for movement in a counterolockwise direction. Accordingly, the spring 21 is eective selectively to bias the handle Il to either its clamping position shown in Fig. 3, or to its releasing position shown in Fig. 4 upon operation of the handle to these positions. f

The spring 21 permits relative reciprocal movement of the member 22 and the right-hand end of the link 20 with respect to the support 23 which is secured to one edge of the band IIJ, and, accordingly, the clamping means automatically compensates for variations in the diameter of the pipe II. Thus, if a. larger diameter pipe is used, the pin 2l when in the clamping position shown in Fig. 3 will be spaced farther from the outwardly extending portion of the support 23, the spring 21 being compressed to a greater degree, while if a smaller diameter of pipe is encountered, the pin 2| when in the clamping position will be closer to the outstanding portion of the support 23. In each case the spring 21 exerts on the band I0 a force which is suiiicient to cause a positive gripping action. Thedegree of automatic compensation which is obtainable by the spring 21 is, o1' course, limited to small variations in the diameter of the pipe, and in order to provide for universal application of the template means to pipe diameters which vary through a somewhat larger range, the clamping means may be initially adjusted to approximately the desired diameter by adjusting the nut 30 along the reciprocal member 22.

While template means embodying my invention are particularly applicable to pipe-cutting operations, my invention is not limited thereto, and in Fig. 6 I have shown a somewhat different form of template for positively gripping plates or other at objectsl such, for example, as the plate 32. In this embodiment of my invention the movable portions of. the template comprise a pair of plates Il and il, the outermost ends o! which are respectively provided with cups n and 3B, the plates and. the clips being arranged to span the plate 32 so that when the plates 33 andl 34, respectively, are drawn inwardly upon operation of the clamping means to its clamping position, the clips 35 and 36 positively grip the plate 32'. It will, oi' course, be understood that the plates 3l and 34 may be of any desired character and may be provided, for example, with suitable drill-guiding apertures, or the' edges of the plates may be shaped to guide suitable cutting tools. In this embodiment of my invention supporting members 31 and 38, respectively, are secured to the movable portions 33 and M, the support 31 being arranged pivotally to support a .handle 39 which pivotally engages a toggle link l0, the opposite end oi' which is pivotally connected to a reciprocal member Il journaled in the support I8 and surrounded by a spring I2, the opposite ends of which respectively abut the support 3B 4and an adjustable nut u. It is believed that the operation of this embodiment of my invention will be clear from the above description of the embodiment shown in Figs. l to 5, inclusive, and accordingly the operation will not be described in detail.

It will thus be seen that I have provided improved template means which may be quickly and easily clamped to an object to be processed or worked, which template means positively grips the object and automatically compensates for minor variations in the dimensions of the object and which may be initially adjusted to take care of major variations in the dimensions of the object. In addition to the speedy opening and closing operation provided, the clamping means is so arranged as to be selectively biased to either its clamping or releasing positions so as to insure positive operation thereof.

While I have shown particular embodiments of my invention, it will be understood, of course, that I do not wishito be limited thereto since many modifications may be made, and I therefore contemplate by the appended claims to cover any such modifications as fall within the true spirit and scope of my invention. l

I claim:

1. Clamping means for positively gripping objects of varying external dimensions comprising relatively movable gripping portions for spanning an object, toggle means including a pair of pivotally engaging links one of which is pivotally connected to one of said gripping portions, a slidable member journaled in the other of said gripping portions and pivotally connected to the other of said togglelinks, said toggle means being movable from a clamping position to a releasing position, spring means interposed between said slidable member and the other one of said gripping portions and adapted to be stressed upon movement of said toggle means to said clamping position for exerting on said gripping portions a force tending to draw said portions together positively to grip said object, and an adjustable connection between said .spring means and said slidable member for adjusting said clamping means to provide for major variations in the. external dimensions of the object, said spring means automatically compensating for minor variations in the external dimension of the object.

2. Clamping means for positively gripping objects of varying external dimensions comprising relatively movable gripping portions for spanning an object, an operating handle piv-` ota'lly mounted on one of said portions for movement between a clamping position and a releas-` for exerting on said gripping portions a force tending to draw said .portions together positively to grip said object when said handle is moved to said clamping position.

3. Clamping means for positively gripping objects of varying external dimensions comprising relatively movable gripping portions for spanning, an object, an operating handle pivotally mounted on one of said portions for movement between a clamping position and a releasing position, a link pivotally engaging said handle' for forming therewith an operating toggle, means pivotally mounting the opposite end of said link and guid' ng the same for reciprocatory movement when said handle is operated between said clamping and releasing positions, and spring means .connected between the other oneof said gripping portions and said opposite end of said link and.

adapted to be stressed by movement of said link for exerting on -saidy gripping portions a forc'e tending to draw said portions together positively to grip said object when said handle is moved to said clamping position, said spring'means permitting limited reciprocatory movement of said opposite end of said link relative to said other gripping portion to compensate for variations in the external dimensions of said object.

4. Clamping means for positively gripping objects of varying external-dimensions, comprising relatively movable gripping portions forspanning an object, toggle means including a. pair of links, one of which is pivotally supported on one of said gripping` portions, said toggle means having a knee-point which passes through its straight line position upon movement of said toggle means between4 clampin-g and releasing positions, and resilient means interposed between the other link of said toggle means and the other of said gripping portions and pivotally connected to said other toggle link for exerting on said gripping portions a force tending to draw said portions together positively to grip said object when said toggle means is moved to' said clamping position, said resilient means exerting on said toggle means a biasing force which reverses upon passage of said knee-point through said straight line position, whereby said resilient means selectively biases said toggle means to said clamping position or to said releasing position upon operation `of said vtoggle means thereto.

5. Clamping means for positively gripping objects of varying external dimensions comprising relatively movable gripping portions for spanning an object, an operating handle pivotally mounted on one of said portions for-movement between a clamping position and a releasing position, a link pivotally engaging said handle for forming therewith an operating toggle, the kneepoint of which moves through its straight line position upon movement of said handle between said clamping and releasing positions, means guiding the opposite end of said link` for reciproand spring means connected between the other one of said gripping portions and said opposite end of said link for exerting on said gripping portions a force tending to draw said portions together positively to grip said object and for selectively biasing said handle: toeither its clamping or releasing position upon operation thereto, said spring means permitting reciprocatory movement of said opposite end of said link relative to said other gripping portion to compensate for variations in the external dimensions of said object.

6. In combination, tool guiding template means having relatively movable portions for spanning an object to be machined, toggle means including a pair of pivotally engaging links one of which is pivotally connected to one of said movable portions, said toggle means being movable between clamping and releasing positions,"

and resilient means interposed between the other one of said toggle links and the other one of said movable portions and adapted to be stressed upon movement of said toggle means to said clamping positions for exerting a force tending to draw said portions together whereby said template means positively grips said object to prevent slippage during the machining operation, said resilient means providing automatic compensation for variations in the external dimensions of said object.

7. In combination, a template for use in cutting oii lengths of pipe, comprising an axially split band adapted to surround the pipe, the split edges of said band being movable toward each other to cause said band positively to grip said pipe during the cutting operation, means on said band for guiding a cutting tool, toggle means including a pair of pivotally engaging links one of which is pivotally supported on one of said split edges, said toggle means being movable between clamping and releasing positions, spring means interposed vvbetween the other one of said toggle links and the other edge of said band and adapted to be stressed upon movement of said toggle means to said clamping position for exerting on said band a force tending to draw said edges together whereby said band positively grips said pipe, and an adjustable connection between said spring means and said other toggle link for adjusting said template to provide for major variations in the diameter of the pipe being cut, said spring means automatically compensating for' minor variations in the diameter of the pipe being cut.

8. In combination, a template for use in cutting oi lengths of pipe, comprising a band adapted to surround the pipe having portions movable relative to each other for positively gripping the pipe, means on said band for guiding a cutting `tool, toggle means pivotally connected to one of said movable portions for movement between clamping and releasing positions, said toggle means having a knee-point which passes through its straight line position during said movement of said toggle means, and resilient means interposed between said toggle means and the other of said movable portions for exerting a force tending to draw said portions together when said toggle means is moved to said clamping position whereby said band positively grips said pipe, said resilient means exerting on said toggle means a force which reverses upon passage of said kneepoint through said straight line position, whereby said resilient means selectively biases said toggle means to either said clamping or releasing positions upon operation of said toggle means thereto.

9. In combination, a template for use in cutting off lengths of pipe, comprising an axially split band adapted to surround the pipe, the split edges of said band being movable toward each other along the surface of said pipe to cause said band positively to grip said pipe during the cutting operation, means on said band for guiding a cutting tool, an operating handle pivotally mounted on one of said split edges for movement between clamping and releasing positions, a link pivotally engaging said handle for forming therewith an operating toggle the knee-point of which passes through its straight line position upon movement of said handle between said clamping and releasing positions, means pivotally supporting the opposite end of said link and guiding the same for reciprocatory movement when said handle is operated, and spring means connected between the other edge of said band and said opposite end of said link for exerting on said band a force tending to draw said edges together whereby said band positively grips said pipe, and for selectively biasing said handle to either its clamping or releasing positions upon operation thereto, said spring means permitting reciprocatory movement of said link relative to said other edge of said band to compensate for variations in the diameter of the pipe being cut.

10. Clamping means for positively gripping objects having varying external dimensions, comprising gripping portions for spanning an object, said gripping portions having end portions closely adjacent each other and movable toward and away from each other substantially parallel to a surface of said object, a pair of outwardly extending supporting posts respectively rigidly secured to said end portions closely adjacent each other, a handle member pivotally connected to one of said posts for movement between clamping and releasing positions, a reciprocatory member journaled in said other supporting post for slidable movement therethrough, a spring for urging said reciprocatory member away from said handle, and a link pivotally connected to said handle and to the other end of said reciprocatory member adjacent said handle to form a toggle with said handle, whereby when said handle is moved toward clamping position said toggle moves said member in a direction to stress said spring and exert on said clamping portions a force tending to move said end portions toward each other positively to grip said object in said clamping portions, said toggle being arranged to move said end portions toward' each other without eifect-

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555194A (en) * 1947-04-03 1951-05-29 John J Kojan Lever and wrench operated closing tool for metal containers having a split ring locking clamp
US2901831A (en) * 1957-05-13 1959-09-01 Laval Steam Turbine Co Gear tooth measuring instrument
US3128734A (en) * 1956-01-13 1964-04-14 Rohr Corp Apparatus for making curved sandwich panels
US3209459A (en) * 1961-09-26 1965-10-05 Armstrong Cork Co Template for cutting pipe insulation
US3285490A (en) * 1963-06-25 1966-11-15 Wallace Expanding Machines Apparatus for making tubular members
US3380148A (en) * 1961-10-16 1968-04-30 Exxon Research Engineering Co Method of guiding and locating welding equipment for subsequent welding
US3525158A (en) * 1967-07-31 1970-08-25 United States Steel Corp Apparatus for aligning shafts and the like
US3572669A (en) * 1968-08-19 1971-03-30 Daniel Brand Pipe beveling machine
US3704516A (en) * 1970-10-22 1972-12-05 Teizo Ono Large diameter pipe cutting device
US3856283A (en) * 1972-12-27 1974-12-24 J Johnson Pipe cutting and beveling tool
US4277874A (en) * 1979-09-17 1981-07-14 Brown Michael D Air filtration bag replacement device
US4480359A (en) * 1982-12-29 1984-11-06 Koster Raymond E Overcenter locking hose clamp
US4497092A (en) * 1982-07-12 1985-02-05 Hoshino Gakki Company, Ltd. Device for fixing rods in selected relative position
US4573717A (en) * 1984-07-09 1986-03-04 Hps Corporation Toggle clamp
US4819307A (en) * 1985-07-19 1989-04-11 Turner David L Hose clamp
US4825543A (en) * 1986-04-07 1989-05-02 Georg Fischer Aktiengesellschaft Tool assembly for circumferential cutting of cylindrical pipe members
US4915417A (en) * 1988-08-02 1990-04-10 Flo-Control, Inc. Thermally assembled conduitry
US5115541A (en) * 1990-02-22 1992-05-26 Rasmussen Gmbh Hose clip
US5450677A (en) * 1994-04-06 1995-09-19 Casey; Gordon C. Apparatus for use in marking a pipe
US5765272A (en) * 1995-08-07 1998-06-16 Cummins Engine Company, Inc. Piston ring compressor
US6209215B1 (en) * 1997-08-21 2001-04-03 Steven W. Helms Saddle joint contour gauge apparatus and method
US6427301B1 (en) * 2000-12-07 2002-08-06 John R. Foster Piston ring compressor tool system
US6601312B1 (en) 2001-09-29 2003-08-05 Ahmed M. Phuly Method and apparatus for universal shape cutting of pipes
US20040231174A1 (en) * 2003-05-20 2004-11-25 Janssen Eric G. Device and method providing a straight edge along an object
US20090249590A1 (en) * 2005-12-05 2009-10-08 Alu S.P.A. Clamp Device, Adapted in Particular to Be Secured on Members of Variable Section
US8296959B1 (en) * 2009-07-29 2012-10-30 Brooks John A Self-retaining pipe cutting template
US20180051972A1 (en) * 2016-08-22 2018-02-22 Kwon J. PARK Tubing Pipe Sizing Tool

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555194A (en) * 1947-04-03 1951-05-29 John J Kojan Lever and wrench operated closing tool for metal containers having a split ring locking clamp
US3128734A (en) * 1956-01-13 1964-04-14 Rohr Corp Apparatus for making curved sandwich panels
US2901831A (en) * 1957-05-13 1959-09-01 Laval Steam Turbine Co Gear tooth measuring instrument
US3209459A (en) * 1961-09-26 1965-10-05 Armstrong Cork Co Template for cutting pipe insulation
US3380148A (en) * 1961-10-16 1968-04-30 Exxon Research Engineering Co Method of guiding and locating welding equipment for subsequent welding
US3285490A (en) * 1963-06-25 1966-11-15 Wallace Expanding Machines Apparatus for making tubular members
US3525158A (en) * 1967-07-31 1970-08-25 United States Steel Corp Apparatus for aligning shafts and the like
US3572669A (en) * 1968-08-19 1971-03-30 Daniel Brand Pipe beveling machine
US3704516A (en) * 1970-10-22 1972-12-05 Teizo Ono Large diameter pipe cutting device
US3856283A (en) * 1972-12-27 1974-12-24 J Johnson Pipe cutting and beveling tool
US4277874A (en) * 1979-09-17 1981-07-14 Brown Michael D Air filtration bag replacement device
US4497092A (en) * 1982-07-12 1985-02-05 Hoshino Gakki Company, Ltd. Device for fixing rods in selected relative position
US4480359A (en) * 1982-12-29 1984-11-06 Koster Raymond E Overcenter locking hose clamp
US4573717A (en) * 1984-07-09 1986-03-04 Hps Corporation Toggle clamp
US4819307A (en) * 1985-07-19 1989-04-11 Turner David L Hose clamp
US4825543A (en) * 1986-04-07 1989-05-02 Georg Fischer Aktiengesellschaft Tool assembly for circumferential cutting of cylindrical pipe members
US4915417A (en) * 1988-08-02 1990-04-10 Flo-Control, Inc. Thermally assembled conduitry
US5115541A (en) * 1990-02-22 1992-05-26 Rasmussen Gmbh Hose clip
US5450677A (en) * 1994-04-06 1995-09-19 Casey; Gordon C. Apparatus for use in marking a pipe
US5765272A (en) * 1995-08-07 1998-06-16 Cummins Engine Company, Inc. Piston ring compressor
US6209215B1 (en) * 1997-08-21 2001-04-03 Steven W. Helms Saddle joint contour gauge apparatus and method
US6427301B1 (en) * 2000-12-07 2002-08-06 John R. Foster Piston ring compressor tool system
US6601312B1 (en) 2001-09-29 2003-08-05 Ahmed M. Phuly Method and apparatus for universal shape cutting of pipes
US20040231174A1 (en) * 2003-05-20 2004-11-25 Janssen Eric G. Device and method providing a straight edge along an object
US7111409B2 (en) * 2003-05-20 2006-09-26 Janssen Building And Development Corp., Inc. Device and method providing a straight edge along an object
US20090249590A1 (en) * 2005-12-05 2009-10-08 Alu S.P.A. Clamp Device, Adapted in Particular to Be Secured on Members of Variable Section
US8296959B1 (en) * 2009-07-29 2012-10-30 Brooks John A Self-retaining pipe cutting template
US20180051972A1 (en) * 2016-08-22 2018-02-22 Kwon J. PARK Tubing Pipe Sizing Tool
US10247532B2 (en) * 2016-08-22 2019-04-02 Kwon J. PARK Tubing pipe sizing tool

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