US132214A - Improvement in formers for segmentally screw-threaded insulators - Google Patents
Improvement in formers for segmentally screw-threaded insulators Download PDFInfo
- Publication number
- US132214A US132214A US132214DA US132214A US 132214 A US132214 A US 132214A US 132214D A US132214D A US 132214DA US 132214 A US132214 A US 132214A
- Authority
- US
- United States
- Prior art keywords
- screw
- insulators
- segmentally
- formers
- threaded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012212 insulator Substances 0.000 title description 14
- 230000000875 corresponding Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2618—Moulds having screw-threaded mould walls
Definitions
- my invention consists in constructin g a point for forming a segment-screw inside of a telegraphic insulator, said point consistin g of a hollow tube the lower end of. which is slotted. Within this tube-a segment-screw is placed, said screw turning on its axis, so that in molding the insulator the screw-segment is at the slots in the outer tube; but whenthe molding is complete the screw-segments may be turned back within the tube and present a smooth space at the opening, thus allowing the point to be Withdrawn.
- K is a guide-pin inserted in the screw-bolt H, and projecting through the tube, as shown, so as to serve as a stop to limit the motion of the center-piece.
Description
S. OAK MAN.
Improvement in Formers for Segmentally Screw-Threaded Insulators.
'No= 132,214. Patented 0ct.15,1872.
Mt Fi/OTO-UTH MA P/l/o 00. M K lama/Mrs [wo s UNITED STATEs PATENT OFFICE.
SAMUEL OAKMAN, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT IN FORMERS FOR SEGMENTALLY SCREW-THREADED INSULATORS.
Specification forming part of Letters Patent No. 132,214, dated October 15, 1872.
OAsE A.
To all whom it may concern Be it known that I, SAMUEL OAKMAN, of
- Boston, in the county of Suffolk and State of Massachusetts, have invented a certain new and useful Mold for Telegraphic Insulators,
. of which the following is a specification:
l The N atare of the Invention.
The nature of my invention consists in constructin g a point for forming a segment-screw inside of a telegraphic insulator, said point consistin g of a hollow tube the lower end of. which is slotted. Within this tube-a segment-screw is placed, said screw turning on its axis, so that in molding the insulator the screw-segment is at the slots in the outer tube; but whenthe molding is complete the screw-segments may be turned back within the tube and present a smooth space at the opening, thus allowing the point to be Withdrawn.
Description of the Drawing.
General Description. Let A represent the outer part of the point.
This is made as shown in the drawing, and is provided with four openings or slots, 0 O O 0. Within this tube the segment-screw bolt H is placed. This screw-bolt fits a corresponding screw within the tube A. The slots 0 O O O are cut through the tube A, as shown, and corresponding recesses E EE E, Fig. 4, planed into the center part H, so that, if the screwbolt H is turned, as shown in Figs. 1 and 3, the insulator molded upon the device will have within it segment-screws.
To withdraw this device from the insulator I have only to turn the bolt H to the'position shown in Figs. 2 and 4. This action will present smooth surfaces to the inwardly-projectin g screw-threads of the insulator and admit of the withdrawal of the device or point.
K is a guide-pin inserted in the screw-bolt H, and projecting through the tube, as shown, so as to serve as a stop to limit the motion of the center-piece.
I claim as my invention- The combination of the tube A with the center segment-screws H B B B B, substantially as described, and for the purpose set forth.
SAMUEL OAKMAN.
Witnesses A. HUN BERRY, FRANK G. PARKER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US132214A true US132214A (en) | 1872-10-15 |
Family
ID=2201631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US132214D Expired - Lifetime US132214A (en) | Improvement in formers for segmentally screw-threaded insulators |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US132214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030113766A1 (en) * | 2000-10-30 | 2003-06-19 | Sru Biosystems, Llc | Amine activated colorimetric resonant biosensor |
| US20040111294A1 (en) * | 2002-12-09 | 2004-06-10 | Mcnally Larry | System and a method for providing integrated access management for peritoneal dialysis and hemodialysis |
-
0
- US US132214D patent/US132214A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030113766A1 (en) * | 2000-10-30 | 2003-06-19 | Sru Biosystems, Llc | Amine activated colorimetric resonant biosensor |
| US20040111294A1 (en) * | 2002-12-09 | 2004-06-10 | Mcnally Larry | System and a method for providing integrated access management for peritoneal dialysis and hemodialysis |
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