US1622459A - Radiodetector - Google Patents
Radiodetector Download PDFInfo
- Publication number
- US1622459A US1622459A US695925A US69592524A US1622459A US 1622459 A US1622459 A US 1622459A US 695925 A US695925 A US 695925A US 69592524 A US69592524 A US 69592524A US 1622459 A US1622459 A US 1622459A
- Authority
- US
- United States
- Prior art keywords
- block
- mineral
- bore
- rod
- rods
- 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
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 2
- 239000002366 mineral element Substances 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
Definitions
- My invention relates to detectors for use in radio sets.
- the essential objects of my invention are immovability of the mineral member relatively to the contacting element; protection against derangement or fracture of the parts; effective insulation; improvement in the circuit wire attaching means; and the attainment of these ends in a simple and inexpensive structure.
- an oblong base 6 of insulating material has threaded perforations 7 for the reception of attaching screws 8, and an intermediate sinnlar perforation 9 adapted to receive a panel attaching screw.
- Thin metallic end plates 11 have upon their lower ends inturned lugs 12 resting on the base provided near their inner ends with holes 13 to admit the attaching screws 8.
- the material of the lower portions of the plates and the portions of the lugs adjacent thereto is cut to form L shaped slots 15, and the material thus cut is formed into circular rings l7 upon the exterior of the supporting plates adapted to have threaded therein and attached thereto the circuit wires 18.
- the hook or ring clamping members 17 have sufficient resiliency to accommodate themselves to wires of varying sizes and are more convenient and less expensive than binding screws.
- Centrally of the upper portions of the supporting plates are openings 20, and upon their top and sides inturned prongs 21 and 22 respectively overlapping and retaining a housing member 24; of paper, fiber, or other electrically nonconducting material, comprising an arched top portion 25 and vertical side portions 26, the lower edges of which abut against the base 6.
- This hous- Serial No. 895,925.
- auxiliary insulat ing not only serves as an auxiliary insulat ing means but protects the enclosed parts from accidental dislocation.
- a cylindrical block 28 of hard rubber or other insulating material has a central here or opening 29.
- a cylincrical metallic rod or holder 30 with the er;- tremity of its projecting portion 31 of reduced diameter. Its opposite or inner enu is provided with a central cavity 33 in which is seated the mineral or crystal 34 which is held in place by clamping down upon its peripheral margin a. terminal tapering or reduced portion 35 of the rod, leaving a central portion of the mineral exposed.
- a cylindrical metallic rod 37 is also driven a portion of its length into the bore 29 and has upon its outer end a reduced portion 38 registering in the openings 20 of the second plate 11.
- the rod 37 has integral with or fast to its tapered inner end 39 a metallic contact needle 40 whose point is in contact withthe mineral element 34.
- the bore 29 is preferably one or two thousandths smaller than the rods 30 and 37 so that the driven rods are slightly embedded in the block 28.
- the rods form a closure for the ends of the bore of the block 28, and also the sole support for said block. Since the needle and mineral are nonadjustable relatively to each other it is convenient, prior to the driving operation, that the block 28 originally have a radial sight opening ll extending from the periphery to the bore of the block in transverse alignment with the mineral elementrwhich, after the driving operation, is filled by a plug 42 of like material as the block 28.
- an insulating base metallic supporting plates upon the base, an insulating block provided with a longitudinal bore, rods embedded in the block in the bore engaging the plates, a mineral element in the inner end of one rod, a needle carried by the inner end of the other rod engaging the mineral clement, said block being pro- 3.
- an insulating base metallic supporting plates fast to the base, 15 laterally extending curved tongues integral With the plates adapted to engage circuit wires, an insulating block provided with a longitudinal loore rods in opposite ends of the bore engaging the plates, a mineral ele- O ment carried by one rod, and a needle carried by the other rod in contact With the n'lineral element.
Description
March 29 1927. 1,622,459
B. H. LUNDQUIST RADIO DETECTOR Filed Feb. 29. 1924 fig. 5. 2/ 26 f 5'9 Patented Mar. 29, 1927.
UNETED STATES BERNARD H. LUNEQ'UIST, 01
PROVIDENCE, RBIODE ISLAND.
RAD]: DETECTOR.
Application filed February 29, 1924.
My invention relates to detectors for use in radio sets.
The essential objects of my invention are immovability of the mineral member relatively to the contacting element; protection against derangement or fracture of the parts; effective insulation; improvement in the circuit wire attaching means; and the attainment of these ends in a simple and inexpensive structure.
Io the above ends essentially my invention consists in such parts and in such combinations of parts as fall within the scope of the appended claims.
In the accompanying drawings which form a part of this specification--- Figures 1 and 2 are a side elevation and end elevation respectively of my novel detector,
Figure 3, a longitudinal section of the same on line 3-3 of Figure 2, and
Figure 4-, a transverse section taken on line H of Figure 3.
Like reference characters indicate like parts throughout the views.
In the form of my invention herein shown an oblong base 6 of insulating material has threaded perforations 7 for the reception of attaching screws 8, and an intermediate sinnlar perforation 9 adapted to receive a panel attaching screw. Thin metallic end plates 11 have upon their lower ends inturned lugs 12 resting on the base provided near their inner ends with holes 13 to admit the attaching screws 8. The material of the lower portions of the plates and the portions of the lugs adjacent thereto is cut to form L shaped slots 15, and the material thus cut is formed into circular rings l7 upon the exterior of the supporting plates adapted to have threaded therein and attached thereto the circuit wires 18. The hook or ring clamping members 17 have sufficient resiliency to accommodate themselves to wires of varying sizes and are more convenient and less expensive than binding screws. Centrally of the upper portions of the supporting plates are openings 20, and upon their top and sides inturned prongs 21 and 22 respectively overlapping and retaining a housing member 24; of paper, fiber, or other electrically nonconducting material, comprising an arched top portion 25 and vertical side portions 26, the lower edges of which abut against the base 6. This hous- Serial No. 895,925.
ing not only serves as an auxiliary insulat ing means but protects the enclosed parts from accidental dislocation.
A cylindrical block 28 of hard rubber or other insulating material has a central here or opening 29. Into one end of this bore is partially driven and rigidly held a cylincrical metallic rod or holder 30 with the er;- tremity of its projecting portion 31 of reduced diameter. Its opposite or inner enu is provided with a central cavity 33 in which is seated the mineral or crystal 34 which is held in place by clamping down upon its peripheral margin a. terminal tapering or reduced portion 35 of the rod, leaving a central portion of the mineral exposed.
A cylindrical metallic rod 37 is also driven a portion of its length into the bore 29 and has upon its outer end a reduced portion 38 registering in the openings 20 of the second plate 11. The rod 37 has integral with or fast to its tapered inner end 39 a metallic contact needle 40 whose point is in contact withthe mineral element 34.
In order to insure against any possible movement of the members 30 or 37 relatively to the block or to each other the bore 29 is preferably one or two thousandths smaller than the rods 30 and 37 so that the driven rods are slightly embedded in the block 28. As will be seen from Figure 3, the rods form a closure for the ends of the bore of the block 28, and also the sole support for said block. Since the needle and mineral are nonadjustable relatively to each other it is convenient, prior to the driving operation, that the block 28 originally have a radial sight opening ll extending from the periphery to the bore of the block in transverse alignment with the mineral elementrwhich, after the driving operation, is filled by a plug 42 of like material as the block 28.
The passage of the electrical current is through the circuit wires, the supports 11, rods 30 and 37, needle 40 and element 34:.
I claim 1. In a radiodetector, an insulating base, metallic supporting plates upon the base, an insulating block provided with a longitudinal bore, rods embedded in the block in the bore engaging the plates, a mineral element in the inner end of one rod, a needle carried by the inner end of the other rod engaging the mineral clement, said block being pro- 3. In a radiodetector, an insulating base metallic supporting plates fast to the base, 15 laterally extending curved tongues integral With the plates adapted to engage circuit wires, an insulating block provided with a longitudinal loore rods in opposite ends of the bore engaging the plates, a mineral ele- O ment carried by one rod, and a needle carried by the other rod in contact With the n'lineral element.
In testimony whereof I have affixed my signature.
BERNARD H. LUNDQUIST.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US695925A US1622459A (en) | 1924-02-29 | 1924-02-29 | Radiodetector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US695925A US1622459A (en) | 1924-02-29 | 1924-02-29 | Radiodetector |
Publications (1)
Publication Number | Publication Date |
---|---|
US1622459A true US1622459A (en) | 1927-03-29 |
Family
ID=24795002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US695925A Expired - Lifetime US1622459A (en) | 1924-02-29 | 1924-02-29 | Radiodetector |
Country Status (1)
Country | Link |
---|---|
US (1) | US1622459A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2572801A (en) * | 1943-06-23 | 1951-10-23 | Sylvania Electric Prod | Electrical rectifier |
US2685028A (en) * | 1954-07-27 | Holder oh mounting for circuit com | ||
US2777949A (en) * | 1952-03-03 | 1957-01-15 | Ericsson Telefon Ab L M | Crystal diode for microwaves |
-
1924
- 1924-02-29 US US695925A patent/US1622459A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685028A (en) * | 1954-07-27 | Holder oh mounting for circuit com | ||
US2572801A (en) * | 1943-06-23 | 1951-10-23 | Sylvania Electric Prod | Electrical rectifier |
US2777949A (en) * | 1952-03-03 | 1957-01-15 | Ericsson Telefon Ab L M | Crystal diode for microwaves |
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