US254126A - henry qeiffdt - Google Patents
henry qeiffdt Download PDFInfo
- Publication number
- US254126A US254126A US254126DA US254126A US 254126 A US254126 A US 254126A US 254126D A US254126D A US 254126DA US 254126 A US254126 A US 254126A
- Authority
- US
- United States
- Prior art keywords
- core
- henry
- qeiffdt
- casting
- weights
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/14—Counterbalance devices with weights
Definitions
- the core is made of sand of the usual char- 2o, acter for cores, mixed,.with silicateol' soda,
Description
EXAMINER Patented Feb. 28. 1882.
Ill/ll 1 O 6 8 4 CROSS REFERENCE No Model.)
. P. H.;GRIPPIN.
GORE FOR BASH WEIGHTS.
I --P. HENRY GRIFFIN, on'nnrnom MIOHIGAR- cone For: SASiH-WilGHTS.
erx'omcsr rorr forming or rm; no. rem as, less, App} iestlen'fl1ed 8ohtenhcr1.1m. (new Y .j
1'ogllwlmhitmagoonoem: j Be it known'that I, I, HENRY GRIFFIN, of Detroit, in the county of Wayne and Stateof Michigan, have invented an Improvement in 5 Cores for Casting 'SashNVeIghts, of which the following is a specification. l
- The nature of this invention relates too new and :nsefnl core .for casting sash-weights, by r means of which a large saving of metal isobno tninedwithont deteriorating the value of the weight. In the accompnnyingdrawing a s ash-weight rovided with my improved permanent 'core is shown in vertical central section. :5 .Themolding is done in the usual manner, after which a core, A, is'inserted into the mold and secured in place by anyofthe known: and
4 approvedmethods, -The core is made of sand of the usual char- 2o, acter for cores, mixed,.with silicateol' soda,
preferably in the proportion of twenty (20) proportions named.
tain itsproper shape, and is then-dried in the usual manner before being placed inthe mold. In casting, a thin shell, 13, of iron is cast aroundthe core,'and the heat ofthemolteu. metal converts the core into every hard. enho stance "resembling artificial stone of I great ;density.- The core varies but slightlyin spe- 'cific grayity from the iron' surrounding it-,an1 l cannot-he removed from the casting. By the use of this core Inm enabled to pro-.35 1 duce a weight wherein a'large proportion of the metal is saved, the core becoming practically integral with the iron and difl'eri-ng therein {tom the ordinary cores, yzhich heeonte'disintegrated by the heat of the moltenmetaland 40 are easily removed from the oasting. What I claim as my'inventiou ifir- A core for casting sash-weights, composed of sand and silicate of soda, as and for the par posespecifled, 4
- P, HENRY GRIFFIN,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US254126A true US254126A (en) | 1882-02-28 |
Family
ID=2323422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US254126D Expired - Lifetime US254126A (en) | henry qeiffdt |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US254126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040083708A1 (en) * | 2002-11-05 | 2004-05-06 | Vito Robert A. | Security chain |
-
0
- US US254126D patent/US254126A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040083708A1 (en) * | 2002-11-05 | 2004-05-06 | Vito Robert A. | Security chain |
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