US200909A - Improvement in caps for glass syringes - Google Patents
Improvement in caps for glass syringes Download PDFInfo
- Publication number
- US200909A US200909A US200909DA US200909A US 200909 A US200909 A US 200909A US 200909D A US200909D A US 200909DA US 200909 A US200909 A US 200909A
- Authority
- US
- United States
- Prior art keywords
- improvement
- caps
- glass syringes
- barrel
- glass
- 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
- 239000011521 glass Substances 0.000 title description 10
- 239000007799 cork Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
Definitions
- the figure is a longitudinal section of a glass syringe to which my improvement has been applied.
- the object of this invention is to furnish an improved cap for glass syringes which shall be so constructed as to cover and protect the edge of the barrel, while furnishing a guide to the piston-rod, and being easily put on and taken ofi.
- A represents the barrel, B the piston, and O the piston-rod, of a glass syringe, about the construction of which parts there is nothing 116W.
- the piston-rod 0 passes through a metallic guide-tube, D, which has a screw-thread out upon its outer surface, upon which is screwed a cork, E, of such a size as to fit into the mouth of the barrel A.
- a ring-plate, F which rests against the edge of the barrel A, and has a ring-flange, Gr, formed upon its outer edge, which overlaps the end of the barrel A and protects its edge, as shown in the figure.
- the screw-thread upon the tube D prevents it from getting loose in and drawing out of the cork E, and the flange G prevents the cork E from working in the mouth of the barrel A, and covers and protects the edge of said barrel.
Description
E. HAGERTY. Gap for Glass Syringes.
No. 200,909. Patented March 5, I878.
mssns: INVENTOR:
m M, E,
ATTORNEYS.
N. PEIERS, PHQTO LlTHOGRAFHER. WASHINGTON D C UNITED STATES PATENT OFFICE.
EDWARD HAGERTY, OF NEW YORK, N. Y.
IMPROVEMENT IN CAPS FOR GLASS SYRINGES.
Specification forming part of Letters Patent No. 200,909, dated March 5, 1878; application filed October 20, 1877.
To all whom it may concern:
Be it known that I, EDWARD HAGERTY, of the city, county, and State of New York, have invented a new and useful Improvement in Gap for Glass Syringes, of which the followin g is a specification:
The figure is a longitudinal section of a glass syringe to which my improvement has been applied.
The object of this invention is to furnish an improved cap for glass syringes which shall be so constructed as to cover and protect the edge of the barrel, while furnishing a guide to the piston-rod, and being easily put on and taken ofi.
The invention will first be described in connection with the drawing, and then pointed out in the claim.
A represents the barrel, B the piston, and O the piston-rod, of a glass syringe, about the construction of which parts there is nothing 116W.
The piston-rod 0 passes through a metallic guide-tube, D, which has a screw-thread out upon its outer surface, upon which is screwed a cork, E, of such a size as to fit into the mouth of the barrel A.
Upon the outer end of the tubeD is formed a ring-plate, F, which rests against the edge of the barrel A, and has a ring-flange, Gr, formed upon its outer edge, which overlaps the end of the barrel A and protects its edge, as shown in the figure.
By this construction the screw-thread upon the tube D prevents it from getting loose in and drawing out of the cork E, and the flange G prevents the cork E from working in the mouth of the barrel A, and covers and protects the edge of said barrel.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination of a syringe tube, A, a plunger having rod 0, and a guide-tube, D, the latter screw-threaded on the outside, receiving cork E, and provided with flanged ring-plate F G, as and for the purpose specified.
EDWARD HAGERTY.
Witnesses JAMES T. GRAHAM, G. SEDGwroK.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US200909A true US200909A (en) | 1878-03-05 |
Family
ID=2270315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US200909D Expired - Lifetime US200909A (en) | Improvement in caps for glass syringes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US200909A (en) |
-
0
- US US200909D patent/US200909A/en not_active Expired - Lifetime
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