US3675460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-slide machine with improved mandrel for producing bearings and the like
Assignee: TORIN-TORRINGTON INDUSTRIES Inc C/O LAWRENCE KAMIN SAUNDERS & UHLENHOP A CORP OF DELAWARE
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Filing: 1970-06-08
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Granted: 1972-07-11
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Expires: 1990-06-08
Abstract
Abstract A high production machine of the vertical four-slide type for intermittently advancing strip stock, severing blanks therefrom, forming the same into bearing races and welding end portions thereof together. The machine has a projecting horizontal mandrel with three work stations there along respectively for preforming, forming, and preheating and/or welding. A cut-off anvil, transfer pins, broaching tools, and an expandable mandrel section are provided all with rear motion drive action and a welding mechanism is adapted for both preheat and weld operation adjacent the expandable mandrel section. A bearing race discharge track extends from the welding station to an induction furnace.
Inventors
- 👤 Erman V Cavagnero
- 👤 Joseph F Loftus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:59
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/04; B23K11/046; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B21C37/0815; B21D; B21D53/00; B21D53/10; B21D53/12; B21F; B21F37/00; B21F45/00; F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49689
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
172 words
The combination in a wire or strip forming machine of a vertical frame, at least two parallel interconnected cam shafts supported in a generally vertical plane by said frame, a mandrel supported by the frame and projecting generally horizontally forwardly therefrom, said mandrel having a first part which is fixed relative to said frame and at least one additional part which is engageable with workpieces and movable between at least two radial positions, and operating means for changing the position of said movable mandrel part and which extends rearwardly from the part through said frame and is connected with and driven from one of said cam shafts, means for successively feeding workpieces transversely of said mandrel to a position adjacent thereto, a plurality of tools movable in generally vertical planes and at least some of which are arranged in a hubspoke configuration about said mandrel, and means connected with said cam shafts for operating said tools in timed relationship with said movable mandrel part and for forming successive workpieces about said mandrel.
Claim 2
Dependent Claim
172 words
The combination in a wire or strip forming machine of a vertical frame, at least two parallel interconnected cam shafts supported in a generally vertical plane by said frame, a mandrel supported by the frame and projecting generally horizontally forwardly therefrom, said mandrel having a first part which is fixed relative to said frame and at least one additional part which is engageable with workpieces and movable between at least two radial positions, and operating means for changing the position of said movable mandrel part and which extends rearwardly from the part through said frame and is connected with and driven from one of said cam shafts, means for successively feeding workpieces transversely of said mandrel to a position adjacent thereto, a plurality of tools movable in generally vertical planes and at least some of which are arranged in a hubspoke configuration about said mandrel, and means connected with said cam shafts for operating said tools in timed relationship with said movable mandrel part and for forming successive workpieces about said mandrel.
Claim 3
Dependent Claim
68 words
The combination in a wire or strip forming machine as set forth in claim 1 wherein four interconnected cam shafts are provided in parallel pairs and in a generally horizontal-vertical rectangular configuration about the mandrel, and wherein cams on the shafts and associated tool slides are provided for the reciprocal operation of tools within the rectangular configuration of the shafts and generally toward and away from said mandrel.
Claim 4
Dependent Claim
65 words
The combination in a wire of strip forming machine as set forth in claim 1 wherein said fixed mandrel part has a longitudinally extending opening therein, and wherein said operating means for said movable mandrel part comprises an elongated member entered in and movable in said opening at the urging of further elements of the operating means at a rear portion thereof behind said frame.
Claim 5
Dependent Claim
68 words
The combination in a wire or strip forming machine as set forth in claim 3 wherein said mandrel includes at least two movable parts having inner and outer radial positions for operation on an adjacent workpiece, and wherein said elongated member is movable axially within said mandrel opening and connected at a forward portion with said parts for movement of the latter between said inner and outer positions.
Claim 6
Dependent Claim
49 words
The combination in a wire or strip forming machine as set forth in claim 3 wherein said further elements of said operating means comprise cam means on one of said shafts and oscillable lever means disposed behind said frame and connected between said cam means and said elongated member.
Claim 7
Dependent Claim
68 words
The combination in a wire or strip forming machine as set forth in claim 3 wherein said mandrel has at least two work stations therealong in rear-to-front order with at least one tool operable at said front station, wherein said movable mandrel part is located at said front station, and wherein a transfer device is provided for successively advancing workpieces from said rear to said front work station.
Claim 8
Dependent Claim
62 words
The combination in a wire or strip forming machine as set forth in claim 6 wherein three work stations are provided along said mandrel with said movable mandrel part located at the forwardmost station, wherein at least one said tool is operable at each said station, and wherein said transfer device successively advances workpieces along said mandrel to said work stations seriatim.
Claim 9
Dependent Claim
52 words
The combination in a wire or strip forming machine as set forth in claim 1 wherein two of said tools cooperate with said movable mandrel part and comprise opposing electrodes engageable with workpieces on the mandrel, said mOvable mandrel part serving to deflect workpieces from their free configuration during electrode engagement therewith.
References Cited (Backward Citations)
GB205050A
Cited
US1964584A
Cited
US1892555A
Cited
US1924230A
Cited
US2712835A
Cited
US3092709A
Cited
US3564899A
Cited
US3559263A
Cited
US3591919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |