Manufacturers Index - Coulter & McKenzie Machine Co., Inc.
Coulter & McKenzie Machine Co., Inc.
Bridgeport, CT, U.S.A.
Manufacturer Class:
Metal Working Machinery & Steam and Gas Engines
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147,674
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Feb. 17, 1874
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Machines for Turning Carriage-Axles
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Hector McKenzie |
Bridgeport, Fairfield County, CT |
Abstract:
The object of our invention is to facilitate the manufacture of wagon or carriage axles, and to make the same more uniform as regards their fit of the box, and to a standard gage, so that there will be no difficulty in replacing a broken axle without the box. The invention consists in various combinations, in the one machine, of certain mechanical devices and peculiarities in their construction, whereby the axle is centered and its bearing portion turned to the required shape and finished also its collar and shoulder formed and screw thread cut on its end, and the axle generally completed, read y for dressing or finishing when hardened; all of which operations are performed by the one machine, and with out removing it therefrom, thus doing away with much handling, the usual filing, and labor consequent on a succession of operations in the ordinary method of manufacturing axles.
Claims:
l. The combination of the thimble F, having a spherical portion, c, with the jaw-chuck E and the centering-socket I, substantially as and for the purpose herein set forth.
2. The roughening-tool J, with its cutters e, e1, e2, e3 & e4, in combination with the rotating tool head H and slide C, essentially as shown and described.
3. The rotating tool-head H, provided with a centering-socket, I, a roughening-tool, J, a die, K, and a finishing-tool, L, all constructed and arranged essentially as described, in combination with the slide C, for the purposes specified.
4. The drill in the rear portion of the finishing-tool L, in combination with the drill m, arranged in rear of the headstock B and made capable of operation by hand in the axial direction of the head-stock, substantially as and for the purpose herein set forth.
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Machines for Turning Carriage-Axles
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Thomas Coulter |
Bridgeport, Fairfield County, CT |
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197,999
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Dec. 11, 1877
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Machine for Turning Wooden Axles
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Hector McKenzie |
Bridgeport, CT |
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Machine for Turning Wooden Axles
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Thomas Coulter |
Bridgeport, CT |
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2,844,416
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Jul. 22, 1958
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Bearing Means and Method of Making the Same
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Victor A. Zaveruha |
Trumbull, Fairfield County, CT |
Abstract:
The present invention relates to bearings or machine ways having thin strip-like wear-resistant liners and to the method of producing the same.
Heretofore, when hardened liners have been provided on ways, they have been expensive due to the cost of the material required and have presented a problem in that if long liners were employed, a danger was always present of the heat treating, in hardening the liners, causing warping of the liners and requiring substantial machining and grinding operations to provide a smooth, true surface.
To avoid this, it has been proposed to supply the liners in short sections. While this reduced the tendency to warp, it injected the additional problems of lining up and accurately positioning and securing a plurality of sections so as to provide a continuous bearing surface. Furthermore, in both of the above cases, when it was necessary to replace the liner as when wear occurred therein, it required a long down time for the machine to remove and install new or reconditioned liners.
The present invention overcomes these difficulties by providing a simple, relatively inexpensive and effective lined way or hearing and the method of making the same whereby the liner can be readily installed without machining thereof and can be quickly and easily replaced.
This is accomplished by providing a base with a smooth bed and securing thereto a thin, fiat, hardened strip of metallic material, which strip is under longitudinal tension and drawn into tight engagement with the bed.
In carrying out the novel method of the present invention, the base is formed with a smooth surface or bed which is then provided with holes adjacent the ends and beyond the active bearing portion, and a liner of thin, hardened strip material, preferably blue spring steel, of a length substantially equal to the bed is provided with holes adjacent the ends which are spaced apart a distance less than the distance between the holes in the bed. The thin liner then is readily warmed by suitable means to expand the same. When it has expanded sufficiently so that the holes in the liner coincide with the holes in the bed, fastening means are inserted through the aligned holes and thereafter the liner is cooled. As the liner cools, it contracts and becomes stretched between the fastening means, is longitudinally tensioned and is drawn into flat engagement with the bed. When it is desired to replace the liner, it is merely necessary to warm the liner and expand it until the tension is removed, whereupon the liner may be readily slipped off the holding means and a replacement liner applied in the manner just explained.
If desired, lateral stabilizing means can be provided for extremely long ways after the liner has been secured to prevent lateral shifting of the liner on the bed.
The features of the invention reside in' the fact that liner material of the strip type is less expensive than the heavy hardened liners heretofore employed, it can be provided in any length as required, it can be installed without requiring accurate machining of the hardened bearing surface, and it can be quickly and accurately installed and/or replaced as required.
Claims:
1. In a way or bearing, a continuous base, a hardened liner engaging and extending over the base for the full length of the liner, said liner comprising a flat, thin strip of hardened metallic material under longitudinal tension, and means passing through the liner and into the base and securing the tensioned liner to the base.
2. In a way or bearing, a continuous base, a hardened liner engaging and extending over the base for the full length of the liner, said liner comprising a thin strip of spring steel under longitudinal tension, and means passing through the liner and into the base and securing the tensioned liner to the base.
3. In a way or bearing, a continuous base having a smooth liner-receiving surface, a hardened liner extending over the base, said liner comprising a thin strip of spring steel under longitudinal tension, and means passing through the liner and into the base and securing the tensioned liner to the base and securing the tensioned liner to the base in engagement with said surface.
4. In a way or bearing, a continuous base having a smooth liner-receiving surface provided with spaced holes therein, a liner comprising a thin strip of hardened metallic material having holes therein normally spaced apart a distance less than the holes in the base, and securing means passing through the holes in the strip and into the holes in the base and stretching the strip therebetween to provide longitudinal tension in the strip and cause the strip to lie in engagement with the smooth surface on the base.
5. In a way or bearing, an elongate base having a liner receiving surface provided with spaced holes therein, a hardened liner extending over the base, said liner comprising a thin strip of hardened material under longitudinal tension, means passing through the liner adjacent the ends thereof and into the base and securing the tensioned liner to the base, and means intermediate the ends of the liner for interlocking the strip to the base to hold the strip against lateral movement.
6. In the method of providing a hard liner for a bearing surface, the steps of preparing a base surface to provide a smooth bed with strip holding means beyond the operative portion of the bearing surface; forming a thin strip of wear-resistant material a length to overlie said base with anchoring means, cooperating with the holding means on the base, having a spacing therebetween of less than the spacing between the strip holding means on the base; Warming the strip to expand the same until the anchoring means in the strip move into cooperative relation with the holding means in the base and then securing the anchoring means thereto; and cooling the strip to cause the strip to be longitudinally tensioned between the holding means and drawn flat and into firm engagement with said base.
7. In the method of providing a hard liner for a bearing surface, the steps of preparing a base surface to provide a smooth bed with pin-receiving holes adjacent the ends thereof, forming a spring-steel strip of a length to overlie said base and with holes having a spacing between the centers thereof less than the spacing between centers of the holes in the base, Warming the strip to expand the same until the holes in the strip coincide with the holes in the base, inserting holding pins into the aligned holes, and cooling the strip to cause the strip to be longitudinally tensioned and drawn flat and into firm engagement with said base.
8. In the method of providing a hard liner for a bearing surface, the steps of preparing a base surface to provide a smooth bed with fastening member receiving holes adjacent the ends thereof, forming a thin strip of a wear resistant material with a length to overlie said base with holes having a spacing between the centers thereof less than the spacing between centers of the holes in the base, placing the hole over a fastening member mounted in a hole in the bed, warming the strip to expand the same until the other hole in the strip is aligned with the other hole in the bed, inserting a fastening member into the aligned holes, and cooling the strip to cause the strip to be stretched between the members and drawn flat and into firm engagement with said base.
9. In the method of providing a hard liner for a bearing surface, the steps of preparing an elongate base surface to provide a smooth bed for the liner with pin-receiving holes adjacent the ends thereof, forming a thin hardened metallic strip of a length to overlie said base with holes having a spacing between the centers thereof less than the spacing between centers of the holes in the base, warming the strip to expand the same until the holes in the strip coincide with the holes in the base, inserting holding pins into the aligned holes, cooling the strip to cause the strip to be longitudinally tensioned and drawn flat and into firm engagement with said base, and thereafter interlocking the liner and base intermediate the ends to prevent lateral movement of the liner on the base.
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2,868,268
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Jan. 13, 1959
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Coil-Forming Machine with Generator Controlled Spindle Postitioning Means
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Thomas E. Lewis Jr. |
Trumbull, Fairfield County, CT |
Abstract:
It is an object of the present invention to provide a coil-forming machine capable of winding coils of various sizes and design quickly and accurately.
Another object of the invention is to provide an improved means for locating the winding spindle in a predetermined starting position.
Another object of the invention is to provide an improved chuck for gripping the first end of the stock forming the coil to insure a tight and square first end down to the tapered point without projections beyond the outside diameter of the coil.
Another object of the invention is to provide a coiling machine with a novel mandrel construction which is long-wearing and free-stripping.
Another object of the present invention is to provide accurate control for starting the coil-laying carriage so that the first coil can be made to form any desired flat base extending through any portion up to substantially a complete turn thereof whereby a flat end for the spring may be provided.
Another object is to provide improved stripping means whereby the coil is removed from the mandrel without distortion, change of length or position of turns.
Another object of the invention is to provide a novel method of coiling and controlling the operation of the elements in forming the coil.
A feature of the invention resides in the unique control of the spindle during the reset period by control of the clutch and brake in the drive therefor whereby the spindle can be set to a predetermined starting position quickly and accurately without overrunning the position.
Another feature of the invention resides in the smooth, freely rotatable mandrel which is adapted to receive the coil in any position on the surface, thus eliminating grooving of the mandrel by the repeated winding of the coil on the same surfaces on the mandrel and the necessity to reset the mandrel. The mandrel is rotated during the coiling operation by the stock forming the coil and gripping the mandrel as the stock is being coiled around the mandrel by the rotation of the chuck, thus eliminating the necessity for a drive for the mandrel. Further, since a grooved mandrel is not used to position the coils, the smooth mandrel of the present invention permits infinite variation in coil pitch or turn relations as they are formed thereon.
A further feature of the invention resides in the positive drive for the mandrel to rotate the same relative to the coil wound thereon during a stripping operation which releases the coil from gripping relation with the mandrel and permits the mandrel to be extracted from the coil without distortion of the coil.
A still further feature of the invention resides in the control for the chuck and the lay-down roller for forming the other end of the coil whereby they hold the coil during the initial mandrel extracting operation and resist any distortion of the coil during the initial extracting period.
Another feature resides in the control system which can be manually or automatically actuated during a forming cycle to produce the coil spring as desired.
Claims:
1. In a coil-forming machine, a smooth, freely rotatable mandrel; drive means; a rotatable spindle driven thereby and having a chuck thereon adapted to grip the end of a piece of stock to be coiled about the mandrel, the stock rotating the mandrel as it is coiled thereabout; a feeding carriage having means engaging the stock; means driven by the spindle and including an electrically operated clutch for feeding the carriage along the mandrel as the stock is coiled 'thereabout; switch means controlled by the spindle for rendering the clutch operative after a predetermined partial rotation of said spindle during a coiling operation, comprising a stop switch for the spindle with a first rotary actuating cam member therefor, and a starting switch for the carriage with a second rotary actuating cam member therefor adjustable to vary its rotational phase relationship with respect to the first cam member determining the peripheral extent of the flat end portion of the coil.
2. In a coil forming machine having a spindle having a chuck thereon adapted to grip the end of a piece of stock to be coiled about a mandrel, drive means for the spindle including an electro-magnetically operated clutch and an electro-magnetically operated brake; locating means operative during a partial rotation of the spindle to locate the spindle in a predetermined rotative position for the gripping of said stock by the chuck, said locating means including speed-responsive means actuated by the rotation of the spindle for controlling the operation of the clutch and brake to slowly rotate the spindle to said predetermined position; and means controlled by the rotative position of the spindle applying the brake and stopping the spindle when the spindle reaches said predetermined position.
3. In a coil forming machine having a spindle and a chuck thereon adapted to grip the end of a piece of stock to be coiled about a mandrel, means for locating the spindle in a predetermined rotative position comprising drive means for the spindle including an electro-magnetically operated clutch and an electro-magnetically operated brake; means including a generator actuated by the spindle for controlling the energization of the clutch and brake to slowly rotate the spindle to said predetermined position for the gripping of said stock by the chuck; and means controlled by the spindle for braking the spindle when the spindle reaches said predetermined position.
4. In a coil forming machine, a mandrel, a spindle having a chuck thereon adapted to grip the end of a piece of stock to be coiled about the mandrel, drive means for the spindle including an electro-magnetically operated clutch and an electro-magnetically operated brake; an electric circuit connected to said clutch and brake to control the operation thereof to inch the spindle slowly to a predetermined rotative position for the gripping of said stock by the chuck, said circuit including a generator driven by the spindle and means controlled thereby to cause operation of the clutch until the spindle speeds exceed the desired speed and then applying the brake until the speed is reduced below the desired speed; and means controlled by the spindle for opening said circuit and braking the spindle when the spindle reaches said predetermined position.
5. In a coil-forming machine, a smooth mandrel; a spindle having a chuck thereon adapted to grip the leading end of a piece of stock; means moving the mandrel into engagement with the chuck; means locating the spindle and chuck in a predetermined starting position to receive the leading end of the stock; drive means rotating the spindle and chuck to coil the stock around the mandrel, said drive means comprising an electromagnetic clutch and electromagnetic brake, said mandrel being free-turning and rotated by the stock as it is coiled whereby scoring of the mandrel by the stock is prevented; coil-laying means driven from the drive means and guiding the stock along the mandrel to lay the coils with a predetermined pitch, said coil-laying means having an electromagnetic clutch between it and said spindle drive means, with electric circuit means operatively interconnecting said first-mentioned clutch and brake and said last-mentioned clutch for stopping the spindle at said starting position for gripping the stock and for then starting the spindle with said coil-laying means remaining at rest in starting position during said predetermined partial rotation of the spindle; coil shaping control means operative after a predetermined partial rotation of the spindle from starting position for actuating the last-named means whereby the flat bottom for the coil is formed, said coil meager;
shaping control means comprising a stop switch with a first rotary actuating cam member therefor controlled by the rotation of the spindle for de-energizing the clutch While energizing the brake; a starting switch with a second rotary actuating cam member therefor also controlled by the rotation of the spindle for energizing the coil-laying clutch to start the coil-laying, said second cam member being adjustable in its phase relationship with respect to the first cam member to vary the peripheral extent of the flat end of the coil; a lay-down roll engaging the trailing end of the coil to form the end thereof; means stopping the coil-laying means at the end of the coiling operation; separate drive means for returning the coil-laying means to starting position; means for stripping the coil from the mandrel including means holding the chuck against rotation and means for positively rotating and withdrawing the mandrel independently of the chuck with respect to the coil to strip the coil therefrom, said chuck and lay-down roll holding the coil during a predetermined initial withdrawing of the mandrel; means actuated in response to said predetermined withdrawal for releasing the chuck and lay-down roll from the coil; means thereafter engaging the coil and stripping the same from the mandrel during the completion of the withdrawal; and means stopping the mandrel in fully withdrawn position.
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Coil-Forming Machine with Generator Controlled Spindle Postitioning Means
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Victor A. Zaverruha |
Trumbull, Fairfield County, CT |
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