US 1014718 A
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Description (OCR text may contain errors)
I. H. PARSONS. ELBGTRIGAL ooUPLING.
APPLICATION FILED MAILB.- 1910. v 1,014,718, Patented Jan.16, 1912.
I. H. PARSONS. ELECTRICAL GOUPLING. APPLICATION FILED MAR. a, 1910.
1,014,718. Patented Jan. 116, 1912.y 3 SHEETS-SHEET 2.
vw@ Vwo@ I. H. PARSONS. ELECTRICAL COUPLING. APPLICATION FILED MAILS, 1910.
Patented Jan. 16, 1912.
3 SHEETS-SHEET 3.
u I y/zig ISAAGTHARDY PAnsoNs, or KIBWORTH HAncoURT, NEAR LEICESTER, ENGLAND.
ELECTRICAL GOUPLING. i
Specification of Letters Patent.
Patented Jan. 16,1912.
Application led March 8, 1919. Serial No. 547,956.
kTo all whom it may concern:
over the projecting head of a stud .or knob to make electrical connection therewlth.
It has for its object.v to so construct the said connector that the sprmginess' of the metal of the same will be assisted by some suitable elastic insulating material to cause the stud or the like to be hugged tightly should the metal members be overstrained, or for any cause fail to gri the said stud tightly. In case the meta membersI are wlthout spring of any kind, the elasticity ofthe insulating material will insure a close electrical Contact.
It has for its further object to completely embed the said contact members', as well as the connecting wires, in the said elastic insulating material leaving onlyv openings,
preferably blind, at each terminal to receive the stud; also, to so construct the same that a water-tight, high insulationv connect-ion may be made withsaid stud.
The nature of my invention will be best understood in connection with the accompanying drawings,'in which- Figure 1 is a longitudinal section of a complete electric connector ;A Fig. 1a an elevation of the stud; and Fig. 1b a plan of said stud. Fig. 2 is a vertical section of a connector in engagement with its stud. Fig. 3
is a vertical section of a connector with duplicate conductors and contact members;
Fig. 3a the corresponding vstud therefor.; and
Fig. 3b a view of the underside of the connector. Fig. 4 is a horizontal sect-ion of a shown'in Fig. 4, but provided with du'pli'catey contact members. Figs. 7 and 7" are vertical sections of a coupling similar to that shown in Figs. 4, 5, and 5, but with the members reversed. Fig. 8 is a horizontal sect-ion of a connector similar to that shown in Fig. 6, but in which the connection is effected by applying a circular motion to one of the coupling members. Fig. 9 is an elevation of a coupling in position, but disconnected from the corresponding studs. Figs. 10 and 10*1 are longitudinal sections of connectors of ball pattern, and in which both 'of the contact members are embedded in an elastic insulating material; Figs. 11 and 12 are vertical sections illustrating 'couplings in which conductors of varying lengths may be attached by those employing the same to meet special requirements. Figs. 13 and 14 are vertical sections of a couplmg provided with a long stud.
Similar characters of reference designate corresponding parts throughout the several l views.
Referring now to Figs. 1, 1, 1", I employ two D-shaped metal pieces D, D1 as the contact members, said members being preferably formed of wires bent into the form of a D, and provided with an indentation D2 in the vertical line of the D. These pieces are dispo-sed so as to form a circle, and are embedded in india rubber A, or equivalent insulating material, forming a disk-shaped pad or cushion E. Opposite to the indentations D2, a circular opening C is made in one side of the cushion, said openings being adapted to receive the metal stud B on which the cont-act members are adapted to snap, upon the latterfs being forced over the same by the pressure, of for example, the users thumb on the top of the cushion E. The
two pairs of contact members D, D1 are connected by means of a suitable conductor or conductors A2, and preferably by a nonstretchi'ng cord A". The conductor A2, as well as cord A4, is likewise covered with india rubber which is vulcanized to the cushions E so as, to form -one piece therewith. The stud B is mounted in an insulating base G, the face of which may be iuted orianged as shown, so that as the cushion E impinges thereon it will establish with the same a water-tight, high insulating connection, the contact ymembers producing a back pressure under the head of the stud. f
Fig. 2 showsthe corresponding parts of the coupling in position, the-cushion E fitti'ngupon the insulating base G which is' adapted to be fixed to some support (not shown) as by means oflsuitable screws G5. An insulated conducting wire lH lis soldered 4at `H2 to the stud B, and an insulating filling G3 is provided inthe sink G1.
'Figs 3, 3, 3b, show the contact pieces D, D1 separated to form duplicate connectors. These contact members are securely anchored Within the india rubber A, and are connected respectively to the conyductors Aa and A". Through separate openings C, C1 contact may be made with the twin contact studs B, B1. L
Figs. 4, 5, and 5n illustrate amodified form, the contact piece being provided with an o ening C3 and slot. D5 and the piece itsel is provided against undulyv moving within the rubber by suitable anchoring horns D, D". The conductor A2 is soldered Vthereto at Ae and A.
Figs. 7 and 7s1 illustrate a coupling of the pattern shown in Figs. 4,-5 and 51, but with the members of the coupling reversed. In this latter form a stud B is embedded in the detachable rubber cushion E instead of being iiXed in the base G, and the piece D is .fixed in the insulating base G.l
A coupling of construction similar to that.
illustrated and described with references to Fig. 6, is shown in Fig. 8, connection, however, being made by inserting the` studs of the correspondin member (not shown) into the holes Da an D4 and then applying a circular motion to the connector.
A useful application of the invention-is in those instances where it is desired to make electrical connection to fixed objects by'means of .a flexible and movable connection as for, example, between a motor-car lantern and the dash-board of the car. In suchinstances, two insulated studs T, T1, (Fig. 9) are provided, one being fixed to the lamp holder of the lantern and one to thedash-board of the car. A couplingmember maybe attached to these studs by simply pressing'upon the cushion E of the same.
/Referring to Figs. 10 and 101, a modified form of connector is shown. The contact membersv in this case are in the form of a metallic loop D and a hook B both of which .are embedded and anchored in elastic insulating material A. Electrical connection is vformed to facilitate this movement.
established between the two lmembers by pressing them together with a lateral movement so as to cause the hook B to enga e loop D. The depressions C and Cg1 are l As the hook B engages theloop D, electrical contact is made, the elasticity of the rubber in contact tending to force the two members of the coupling apart, and also to lmaintain 'the necessary .pressure between the contact surfaces.
In Fig. 11 the contact piece D is shown cup-shaped and is provided with anchoring holes D7: The conductor A2 ,in view of varying requirements as to the'length may be laced in the desired position by the user and) soldered to the contact-piece D as at the point H2. The stud B is in this embodiment shown split and the hole Ds of piece D` is adapted to snap over same, the connection being assisted by the back pressure of the rubber cushion A bearing against the iange G1, thereby holding the member D in contact with head of the stud D. A water-tight joint is established at G1.
Fig. 12 shows a similar construction, the hole in the plate D, however, bein located eccslnt-rically, while the stud B is.- xed centra F is. 13 and 14 illustrate a form of coupling such as shown and described in connection with the'coupling set forth in Figs. 7 and 71. Thestud B in this form, however, is longer and projects well into its corresponding member. The said stud projects the Y also upward through the cushion A, and is covered with the insulating material to form a handle A7. The conductor A2 is, soldered to the stud B at the point H2, and the conductor I-I to a metallic cross-pin D of triangular cross-section. Electrical connection is established between the members 4B and 4D by pushing the stud B into the member G until its head engages the under side of the Ametallic cross-pin D. A Awater-ti ht connection is also established at G1. any useful applications of this connector will read# ily suggest themselves, and it is obvious that the cushions, the contact pieces, etc., may be made in many 'forms and designs without departing'from the spirit of my invention.
1. The herein described electric coupling consisting of a suitable stud; a metallic, snap-oncontact member to fit said stud; and suitable elastic insulating material surrounding said contact member to assist the sprin iness ofrthe same, and provided with a sultable'opening through which connection with said cont-act member may be made.
2. The herein described electric -coupling consisting of a suitable stud; a metallic contact member to fit -said stud; and suitable elastic insulating material within which said member is embedded, said material being provided with a blind opening through which connection with the said contact member may be made.
3. The herein described electric coupling consisting of a suitable stud; a metallic,
snap-on contact memberto it saidstud; and
suitable elastic insulating material within which said member is embedded, said material being provided with a blind opening through which connection with the said contact member may be made.
4. The herein described electric coupling lconsisting of asuitable stud; a metallic, snap-oncontact member to lit said stud; and a rubber pad or cushion within which the saidmember is embedded, said pad being provided with a blind opening through which connection may be made with said contact member.-` l
5. The herein described-electric coupling consisting of a suit-able stud, and insulating material surrounding the same; a metallic contact member to lit saidy stud; suitable insulating material surrounding said contact Vmember and provided with a suitable opening through which connection may be made with -said contact member; and means on one of said insulat-ions to resist the other, when the said stud makes contact with the contact member, to produce a back pressure under the head of the said stud.
6.' The herein described electric coupling consisting of a suitable stud; two D-shaped conductors each having an indentation in t-he vertical line of the D; and a suitable elastic insulating material within which said conductors are embedded in juxtaposition, said material being provided with anQ opening through which contact may be made with said conductors. i
7. An electric connector comprising: two snap-on contact members; a flexible conductor connecting said contact members; and
elastic insulating material within which each of said contact members is embedded, the said material surrounding said contact membersA being provided at each contact member with a lsuitable opening through which connection may be made with the respective members.
8. An electric connector comprising: two snap-on contact members; a flexible conductor connecting said contact members; and elastic insulating material surroundingl said exible conductor and within which each of said ,contact members is embedded', the said material'surrounding said contact members being provided at each contact vmember with a suitable opening through which connection i, may be made with the respective members.
9. An electric connector comprising: two
snap-on contact members; a flexible conductor connecting said contact members; and elastic insulating-'material surrounding said flexible conductor and within which each of said'contact members is embedded, the said material surrounding said contact members being provided at each contact member with a blind opening through which connection may be made with the respective members.
10. An electric connector comprising: two
snap-on contact members; a flexible conductor, and a cord or the like, connecting said contact members; and elastic material surrounding said flexible conductor and the cord or the like, and within which each of i said contact members is embedded, the said material surrounding said contactmembers being provided at each contact member with a suitable opening through which connection may be made with the respective members.
material surrounding said contact member and provided with a suitable opening, of' a suitable stud adapted to enter said opening to make contact.. with said contact member, insulating material surrounding said stud, and means on said insulating material to resist the said elastic insulating material of the contact member when the said stud makes contact'with the contact member.
13. The combination with an electric coupling member consisting of a metallicmontact member, and suitable elastic insulating material surrounding said contact member and provided with'a suitable opening, of a suitable stud adapted to enter said opening l to make contact with said,l contact member, and insulating material surrounding said stud, said insulating material being provided with a ridge to resist the said elastic insulating material surrounding said contact member.
Signed at Leicester, in the county of Leicester, England, this 4th day of February A. D. 1910.
A ISAAC HARDY PARSONS.