AU5284473A - Element - Google Patents

Description

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TEST CHART RESOLUTION MICROCOPY BUREAU NATIONAL 196 3 OFSTANDARDS-

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I' I Form 4 Regulation 1

COMMONWEALTH OF

x/We RAPID METAL DEVELOPMENTS LIMITED

of 395 George Road, Erdington, Birmingham, England

hereby apply for the grant of a Patent for an invention

o.. entitled: "AN EXTENSION ELEMENT FOR A TIE-ROD END PIECE" 00

00 which is described in the accompanying complete specifi-

cation. This application is a Convention application and

is based on the application(s) numbered: 12532/72

for a patent or similar protection made in Great Britain I..

on -the 17th day of Marih,1972

ky/Our address for service is Messrs. Griffith, Hassel

Frazer, 323 Castlereagh Street, Sydney, New South Wales, 2000,

Commonwealth of Australia.

DATED this 1st day of March, 19 73.

RAPID METAL DEVELOPMENTS LIMITED By their Patent Attorney:

of GRIFFITH, HASSEL FRAZER

To: The Commissioner of Patents, Commonwealth of Australia.

.Is AUSTRALIA FOR~M 7 DECLARATION FOR CONVENTION PATENT APPLICATION (Note: To be signed by the applicant(s), if individual(s). If applicant is a Company, to be signed by a person on its behalf. This is a comprehensive form, and parts inappropriate to a particular application should be cancelled.)

COMMONWEALTH OF AUSTRALIA Pautents Act 1952-1960

DECLARATION IN SUPPOUIT OF A CONVENTION APPLICATION INSTRUCTIONS FOR A PATENT OR PATENT OF ADDITION svllbl In support of the Convention application No. 41 (h)Insoert full n-fa) made by iETAL DEVELOPNEN.T.S -LIMITED of appilenoli)

(c I-r il of fra patent/,'pt3J~ fIa~tixOx for an invention entitled !1AN..EXTENSIQN....ELE MENT. FOR. A. TIE-.ROP._N P IECE."

ofl Inst i. sm) DE

lonort oddress(es) of m id f paine Ipmn s hiih....

of decirnotis) of e) G'e.Qrge Road., .r...ington, Birmingham,. England- 0009

no 0* C o 00 a do solemnly and sincerely declare as followvs: 00 0 1. 1 am/We are the applicant(s) for the patent/patent of addition 0 (or, in the case of an application by a body corporcte) S SO 1. 1 am/,We are authorized by the abovementioned applicant(s) for the patent/patent 000 of addition to make this declaration on its/their behalf. 2. The basic application(s) as defined by Section 141. of the Act was/were made in the following country or countries on the following date(s) by the following applicant(s) 00 namely:- JOl Insert couftr7 In in GRA BRITAIN 0 which first basic on g o h March 0e filed. wo by RAPID. METAL. DE VELOPMENT. .LIMIT.ED..as Asaignees....of. 0* DEREK RUSHTON Insert date of f-t inl Mfo 19 00 00 asic applicatil,. by 00 MO) Insert full nn-am in g 9 0 0 of basic f) .9 opplicoot(.1 by 1i.. I

3. 1 am/We are the actual inventor(s) of the invention I0Isr ulnxes (or, where a person other than the inventor is the applicant) ofJ acstfull aes DEREK .RUSHTON inventor(s)

Insert addresoeal 12 Tudor Road. Burntwod. Staffor hi...Eg nd of actual of Inventoris)

is/Jie the actual inventor of the invention and the facts upon which the applicant (s) '4w/are entitled to make the application are as follows:- wh)Reihspplnnt n RAPID. MAET AL DYVELJ.OPMENT S. LIMIIPED, .areh Assignees derive(s) title front isetuni loventorisl o. .tie sakid..in ention.. from the actual..InventGr 0

4. The basic application referred to in paragraph 2 of this Declaration was/were the first application(s) made in a Convention country in respect of the invention the subject of the application. bi l~antof Declared at Birmingham, this ni day of 1973. Note- No attestation or England other siffoutore is re. guired,

To: The Commissioner of Patents, Commonwealth of Australia.

Form COMMONWEALTH OF AUSTRALIA

PATENTS ACT 1952-69

COMPLETE SPECIFICATION (ORIGINAL)

FOR OFFICE USE: Int. Class Cls Application Number :-73 '50 48 141-0 Lodged: -3

:.Complete Specification Lodged

boo: Published: 9

Related Art: 9' 4 46 7 -3 9 ?I 7el tr. 4~0, 003

TO BE COMPLETED BY APPLICANT *.*.Name of Applicant RAPID METAL DEVELOPMENTS LIMITED

Address of Applicant: 395 George Road, Erdington, Birmingham, England

Actual Inventor: Derek Rushton

Griffith, Hassel Frazer, Address for Service: 323 Castlareagh St., SYDNEY N.S.W. 2000 AUSTRALIA

Complete Specification for the invention entitled: 'IAN EXTENSION ELEMENT FOR A TIE-ROD END PIECE"

The following statement is a full description of this invention, with the best method of performing it known to ws/us:-

p k\ 0~ I- 69.J~ 7 22

This invention relates to an extension element for a

tie-rod end piece which comprises an apertured frusto-conical

body. It is an object of the invention to provide such an

extension element in a convenient form.

In accordance with the present invention there is provided

an extension element for a tie rod end piece the latter comprising

apertured an frusto-conical body, said extension element being in

S the form of a stepped sleeve the step of which defines a shoulder

on the external surface of the sleeve intermediate a pair of

JO external frusto conical wall portions thereof, said sleeve

having a frusto-conical inner wall and being such that in use

the smaller diameter end of said sleeve is inserted into the

larger diameter end of said tie rod end piece so that one of

said external frusto-conical wall portions engages the inner

wall of said tie-rod end piece and said shoulder engages the

larger diameter axial end of said tie-rod end piece, the other

Sexternal frusto-conical wall portion of the sleeve being aligned

with the external wall of said tie-rod end piece.

Preferably, said extension element is formed of synthetic resin

material.

The invention will now be more particularly described with

reference to the accompanying drawings wherein:-

Figure I is a sectional view of one embodiment of an extension

element for a tie rod end piece which is fitted to such an end

piece and which is constructed in accordance with the present

invention, and

Figur 2 is a sectional view of the tie rod end piece

illustrated in Figure 1.

Referring now to the drawing there is shown therein an

extension element 10 for a tie-rod end piece 11, the latter

comprising an apertured frusto-conical body formed of synthetic

resin material. The aperture in the frusto-conical body is

defined by a frusto-conical internal wall portion 12 adjacent

thelarger diameter end of the tie-rod end piece, by a helically

channelled portion 13 adjacent the other end of the tie-rod end

Spiece and by a hexagonal portion 14 disposed intermediate the

a.. frusto-conical internal wall portion 12 and the helically

channelled portion 13. The hexagonal portion 14 is provided

for receiving a hexagonal end of a tool and the helically channelled i portion 13 is provided for receiving one end of a helical

compression spring (not shown) which has diametrically opposite

portions welded to one end a pair of parallel spaced rods which

have their opposite end secured to a similar spring.

In use, the tie-rod end piece is connected to the tie-rod by

firstly screwing the helically channelled portion 13 onto the

spring, mounting between shuttering and then fitting a headed

bolt through the shuttering, extension element, tie rod end

piece and screwing into the inside of the spring.

The extension elelent 10 is in the form of a stepped

synthetic resin sleeve the step of which defines a shoulder

on the external surface of the sleeve intermediate a pair of

external frusto-conical wall portions 16 and 17 thereof. The

sleeve has a frusto-conical inner wall 18 and is such that in use

the smaller diameter end of the sleeve can be inserted into the

larger diameter end of the tie-rod end piece 11 so that the

external frusto-conical wall portion 16 engages the inner wall

of the tie-rod end piece and the shoulder 15 engages the larger

diameter axial end of the tie-rod end piece. The other external frusto-conical wall portion 17 of the sleeve is arranged so that it is aligned with the external wall of said tie rod end piece 11.

The end piece can thus be used, if desired, to provide in

effect a tie-rod end pieca of increased axial length. Thus,

the number of different sizes of tie-rod end pieces it is

necessary to manufacture to produce a given range of such end

pieces will be substantially reduced by the provision of the

2 extension elements, 4*

C C C C

The claims defining the invention are as fo&lows:-

1. An extension element for a tie-rod end piece the latter

comprising an apertured frusto-conical body, said extension

element being in the form of a stepped sleeve the step of

which defines a shoulder on the external surface of the sleeve

intermediate a pair of external frusto-conical wall portions

S thereof, said sleeve having a frusto-conical inner wall and

being such that in use the smaller diameter end of said sleeve e0

is inserted into the larger diameter end of said tie rod end

S piece so that one of said external frusto-conical wall portions

.6 engages the inner wall of said tie-rod end piece and said

shoulder engages the larger diameter axial end of said tie-

rod end piece, the other external frusto-conical wall portion

of the sleeve being aligned with the external wall of said tie-

rod end piece.

I

2. An extension element as claimed in Claim 1 wherein the

S extension element is formed of synthetic resin material.

3. An extension element as claimed in Claim 1 or Claim 2 in

combination with a tie-rod end piece which comprises an

apertured frusto-conical body.

2o 4. An extension element substantially as herein described with

reference to and as shown in the accompanying drawing.

Dated this 1st day of March, 1973 RAPID METAL DEVEL MENTS LIMITED By their Patent A orney:

of GRIFFITH, HASSEL FRAZER

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FIG.I1. S*

FIG-a.