1952-11-26

Abstract of GB683389 683,389. Repairing broken ceramic-ware and glass-ware. BOCK. W. June 9, 1950 [June 9, 19491, No. 15387/49. Class 128 [Also in Groups XXIII and XXV] Broken ceramic-ware and glass-ware are repaired by assembling the parts, e.g. parts 3 and 4 of a plate, forming channels 6 across the line of fracture 2, e.g. on the underside of the plate, placing cement in the channels and embedding at least one dowel pin 5 in each cement filling so that the parts are held firmly together when the cement sets. The parts may be cemented together before the channels are made. The pins 5 are preferably made from wire or rigid strip material. They may have irregular surfaces, e.g. they may be ribbed, grooved, serrated or helically twisted. The cement may be covered with paint or enamel.

7

1952-11-26

B28B1/26 ; B28B11/00 ; B28B17/00 ; B28B1/26 ; B28B11/00 ; B28B17/00

B28B1/26 ; B28B11/00 ; B28B17/00

GB19490015387 19490609

GB19490015387 19490609

1	Improvements in or relating to the repairing of broken ceramic-ware and glass-ware
	Inventor:	Applicant: WALTER BOCK
	EC:B28B1/26; B28B11/00; (+1)	IPC: B28B1/26; B28B11/00; B28B17/00(+3)
	Publication info: GB683389 A - 1952-11-26

1	Process for joining plastic moldings
	Inventor: SCHAETZLE MICHAEL (DE)	Applicant: HENKEL TEROSON GMBH (DE)
	EC:B29C65/48; B29C65/50C; (+5)	IPC: B29C65/48; B29C65/50; B29C73/00(+21)
	Publication info: US5976291 - 1999-11-02

What I claim is: -

1. A method of repairing broken or fractured china-ware, such a method comprising 75 maintaining the adjoining parts of an article that are to be secured together in side-byside relationship whilst a channel is formed in these parts transversely of the line of their junction, the channel extending on 80 on either side of this line; placing a setting cement in the said channel, and also placing in the latter, so as to be embedded in the said cement,.at least one linking element adapted to extend along the length of said 85 channel and, when the cement has set, or been set, to hold the said parts of the article firmly together.

- 2. A method of repairing broken or fractured china-ware according to Claim 1, 90 wherein the parts of an article to be secured together are initially cemented together at their adjoining faces prior to the said formation of a channel in the said parts.

3. A method of repairing broken or fractured china-ware according to Claim 1 or 2 wherein the said linking elements each comprise a rigid strip or wire having an irregular surface to enhace its adherence to the said cement in the channel. 100 4. A method of repairing broken or fractured china-ware according to Claim 1 or 2 wherein the said linking element of elements each comprise a rigid strip or wire wound into a helix. 105 5. A method of repairing broken or fractured china-ware according to any of the preceding claims wherein the said cement, after the setting thereof, is covered with a layer of paint or enamel. 110 6. A method of repairing broken or fractured chin-ware, substantially as herein described, and with reference to Figures 1 and 2 of the accompanying drawings.

7. An article of china-ware repaired by 115 the method set forth in any of the preceding claims.

FORRESTER KETLEY & CO., Chartered Patent Agents, Jessel Chambers, 88-90.-Chancery Lane, London, W.C.2, and Central House, 75 New Street, Birmingham, 2.

Agents for the Appplicant.

683,389 PROVISIONAL SPECIFICATION.

Improvements in or relating to the Repairing of Broken Ceramic-Ware and Glass-Ware.

I, WALTER BOCX, a British Subject, of 102 Kingsley Way, fiampstead Garden Suburb, London, N.2, do hereby 'declare the nature of this invention to be as follows:This invention concerns a new or improved method and means of repairing broken ceramic-ware and glass-ware, all hereinafter referred to inclusively as "chinaware".

Hitherto in repairing a broken china-ware article it has been customary to cement the adjoining parts together along the line of fracture and to bridge the fracture by transversely arranged shallow U-shaped rivets, the short side arms of which were recessed into the -adjoining parts of the broken article to hold them together with the cross bar of the rivet extending from the short side arms of the rivets and lying upon the surface of the article of chinaware. This method and means of repairing broken china-ware has for example the following disadvantages. The operation of drilling holes to receive the short side arms of the U-shaped rivets is a very slow, delicate, complicated and tedious operation requiring the drilling of two holes and the subsequent very accurate fitting of the side arms of the U-shaped rivets into these holes at precisely the correct distance apart, the rivet arms then being cemented into the said holes to secure the rivets in position.

The life of such a repair is limited if the repaired article is to be used at all because the fractured parts are only held together at two spaced and isolated points. The cross bar adds little or no strength to the joint between the adjacent parts of the repaired aricle. Furthermore because the crQss bars of the rivets stand proud of the -surface of the repaired article they render the article of a somewhat unhygienic character since grease -and - dirt collect around the exposed cross bars of the rivets. Moreover these projecting cross bars interfere with the proper resting of a repaired article upon a flat surface and therefore the repaired arti6le is unstable when so resting.

The object of this invention is[ to provide an improved method of repairing -broken china-ware and- according to this invention there is provided a method which consists in holding the adjoi.ing parts of the article that are to be-secured together in'side by side relationship whilst a channel is formed in these adjacent parts transversely of the line of the fracture between them, the channel extending on either side of this fracture; placing a suitable cement (e.g. a 60 porcelain or other material all hereinafter referred to inclusively as -cement") in the channel thus formed, and also placing in this channel so as to be embedded in the said cement at least one linking element 65 adapted to extend along the length of the channel and, when the cement has dried, firmly to hold the adjoining parts of the fractured article together.

A suitable joining cement may also be 70 provided between the adjoining faces of the fractured article along the line of fracture before the pieces of the article are placed and held together for grooving as aforesaid.

The said links are preferably in the form 75 of lengths of metal wire which will ordinarily be straight but which, when being used for joining the parts of a curved or undulating surface, may be bent to suit that surface.

These links may be and preferably are provided with indentations, serrations or other means to improve their grip and anchorage in the cement placed in the grooves in which they are located. The links may be of any suitable cross sectional form and may have 85 one or more flat sides or be of circular crosssectional form. The indentations, serrations or the like above referred to may be impressed into the links with the aid of metal dies or may be cut into the links by any 90 suitable tools or the links may be moulded in the required form. In an alternative arrangement a length of circular or flat square wire may be twisted helically so as to form a link of substantially expansible 95 helical character with helical grooves adapted to bite into the cement into which the link is embedded.

When the links are cemented into the aforementioned grooves they are preferably 100 entirely below the surface of the repaired article or at least have their outer surfaces substantially flush with the adjacent surfaces of the repaired article and preferably each join including the cement and the link 105 is covered by a suitable paint, enamel or the like applied by spraying, by means of a brush, by dipping or in any other suitable way.

The invention Thus includes the provision 110 of links for use in repairing broken china-ware such links, comprising lengths of metal wire or equivalent material furnished with indentations or serrations, ribs, grooves or other suitable projections or anchorhg 115 means on its surface or- surfaces to enable it -688J-89 be obtained. The stability of the links is greater as they are recessed into the work over their whole length so that they do not project over the repaired article and so that they also contribute to the strength of the join between the adjacent parts. The links cannot therefore easily be displaced and being below the surface of the grooves into which they are placed and which grooves are filled with the joining cement, they have not the unhygienic characteristics of the well-known U-shaped rivets.

Dated this 9th day of June, 1949.

FORRESTER KETLEY & CO., Chartered Patent Agents, Jessel Chambers, 88-90 Chancery Lane, London, W.C.2, and Central House, 75 New Street, Birmingham, 2.

Agents for the Appplicant.

to take a firm grip upon the joining cement used in repairing the broken article.

It will of course be understood that the channels that are formed in the parts of the broken article only extend partially through the latter so that the channels are open only on one side usually the outer side of the article being repaired.

The channels or grooves may be formed in the parts joined together by means of a carborudum wheel, a diamond wheel or by any other suitable tool of the requisite dimensions.

Repairing china-ware in accordance with this invention has inter alia the following advantages. The junction is unobtrusive, being to a, large extent invisible, the links do not protrude from the repaired article as did the rivets hitherto employed. The process can be carried out more quickly and more simply than the method of riveting hitherto employed and more satisfactory results can Abingdon: Printed for Her Majesty's Stationery Office, by Burgess & Son (Abingdon), Ltd.-1952.

Published at The Patent Office, 25, Southampton Buildings, London, W.C.2, from whioh copies maybe obtained.

683,389

RESER V

PATENT SPECIFICATION

683,389 Date of filing Complete Specification: June 9, 1950.

Application Date: June 9, 1949. No. 15387 49.

Complete Specification Published: Nov. 26, 1952.

Index at Acceptance:-Classes 56, F6; 89(ii), IH2; and 128, M; COMPLETE SPECIFICATION.

Improvements in or relating to the Repairing of Broken Ceramic-Ware and Glass-Ware.

I, W ALTER 130cE, a British Subject, now of 54, Vivian Avenue, London, N.W.4, formerly of 102, Kingsley Way, Hampstead Garden Suburb, London, N.2, do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement:-

This invention concerns a new or ilmproved method and means of repairing broken ceramric-ware and glass-ware, all hereinafter referred to inclusively as " chinaware Hitherto in repairing a broken china-ware article it has been customary to cement the adjoining parts together along the line of fracture and to bridge the fracture by transversely arranged shallow U-shaped rivets, the short side arms of which were recessed into the adjoining parts of the broken articles to hold them together with the cross bar of the rivet extending from the short side arms of the rivets and lying upon the surface of the article of china-ware.

This method and means of repairing broker china-ware has for example the following disadvantages. The operation of drilling holes to receive the short side arms of the U-shaped rivets is a very slow, delicate, complicated and tedious operation requiring the drilling of two holes and the subsequent very accurate fitting of the side arms of the U-shaped rivets into these holes precisely the correct distance apart, the rivet arms then being cemented into the said holes to secure the rivets in position. The life of such a repair is limited if the repaired article is to be used at all because the fractured parts are only held together at two spaced and isolated points. The cross bar adds little or no strength to the joint between the adjacent parts of the repaired article. Furthermore because the cross bars of the rivets stand proud of the surface of [Price 2i. 8d.] the repaired article they render the article of a somewhat unhygienic character since grease and dirt; collect around the exposed cross bars of the rivets. Moreover these projecting cross bars interfere with the proper resting of a repaired article upon a flat surface and therefore the repaired article is unstable when so resting.

According to this invention there is provided a method of repairing broken or frae.

tured china-ware, such method comprising maintaining the adjoining parts of an article that are to be secured together in side-byside relationship whilst a channel is formed in these parts transversely of the line of their junction, the channel,extending on either side of this line; placing a setting cement in the said channel, and also placing in the latter, so as to be embedded in the said cement, at least one linking element adapted to extend along the length of said channel and, when the cement has set, or been set, to hold the said parts of the article firmly together.

A suitable joining cement may also be provided between the adjoining faces of the said parts of the article along the line of the junction therebetween before the parts of the article are channelled as aforesaid.

The said linking elements aare preferably in the form of lengths of metal wire which will ordinarily be straight but which, when being used for joining the parts of a curved or undulating surface, may be bent to suit the surface. These elements may be and preferably are provided with indentations, serrations or other surface irregularities to improve their grip and anchorage in the cement placed in the channels in which they are located. The said elements may he of any suitable cross sectional form and may have one or more fiat sides or be of circular cross sectional fborm. The indentations, serrations or irregularities above referred to may be impressed into the elements with " It I - 1h 101 -im.

4 7 __J 683,389 the aid of metal dies or may be cut into the elements by any suitable tools or the elements may be moulded in the required form.

In an alternative arrangement a length of circular or rectangular cross-section wire may be wound helically so as to form an element of substantially expansible helical character with helical grooves adapted to bite into the cement into which the element is embedded.

When the 'linking elements are cemented into the aforementioned channels they are preferably entirely below the surface of the repaired article or at least have their outer surfaces substantially flush with the adjacent surfaces of the repaired article and preferably each join including the cement and the link is covered by a suitable paint, enamel or like coating applied by spray-ing, by means of a brush, by dipping or in any other suitable way.

In order that this invention may be thoroughly comprehended, the method of the invention and various embodiments of linking elements which may be employed in the repair of broken or fractured china-ware according to this invention will now be described by way of example and with reference to the accompanying drawings in which: Fig. 1 is an underneath plan view-of a -broken or fractured domestic dinner plate - which has been repaired by the method of this invention, - -Fig. 2 is a-cross-sectional elevational view on the line-II-II of Figure 1, Fig. 3 is a perspective view of the linking element shown in Figure 2, whilst Figures -4, 5, -and 6 show respectively three alternative forms of linking element which may be employed in the repairing of - broken or fractured china-ware by the - method according to this invention.

Thus Figure 1 illustrates a domestic dinner plate 1, broken or fractured along the line 2 into two parts, 3 and 4 respectively, the two parts 3 and 4 having been secured together, by -the method of this invention.

In this example, four linking elements 5 have been employed to secure the parts 3 and 4 together, but it will be understood that the number of linking elements employed- in any particular instance will be that necessary to secure the parts to be joined firmly together.

Each linking element 5 is arranged in a channel or groove 6 which has been formed in the parts 3 and 4 of the plate 1, the parts 3 and 4 being held together in the positions in which they are to be secured whilst the channels 6 are formed, these channels extending transversely of the line 2, and preferably perpendicularly thereto: - the channels 6 are conveniently -formed by cutting with a carboruidum or diamond wheel, or any other tool of suitable dimensions.

As shown in Figure 2, the channel 6 does not extend entirely through the parts 3 and 4, but is only of sufficient depth to permit the linking elements to lie below or flush with the surface of the said parts. Each of 70 the channels 6 is filled with a suitable cement 7 in which the linking element 5 is embedded: it will be understood that although only one linking element 5 is shown as being located in each channel 6, 75 more than one such element could be arranged in each such channel if so desired.

It will be noted that the linking element 5, illustrated in Figure 3 is of circular crosssection and is provided with recesses 8 in its 80 external surface, these. recesses serving to ensure that the element 5 will be securely bonded to the cement 7, and axial movement of the element in the cement thereby obviated should the latter crack in later 85 service. The recesses 8 may be formed in the element' 5 by any suitable process for example by stamping, pressing, milling, embossing, or moulding; in the interests of strength and durability, the element 5 is 90 preferably formed of metal.

Preferably the channels 6 are formed in the parts of an article to be joined in a surface thereof which is customarily hidden from view; thus the channels 6 are formed 95 in the under side of the repaired plate 1, illustrated in Figure 1. - The cement-filled channels 6 are preferably covered by-a layer of paint or enamel, applied by brushing, spraying or dipping, for example, said layer 100 serving to - disguise the presence of the channels to some extent and thus to enhance the aesthetic appearance of the repaired article. The said layer of paint or enamel also serves to provide a smooth surface over the cement in the channels andthus minimises crumbling and powdering of the cement surface during subsequent use of the repaired article. -Although the element 5, as shown in 110 Figure 3 is formed of material -(e.g. metal wire) of circular cross-section, it, will be appreciated -that the element could have other forms, such as those illustrated in Figures 4 and 5, in which the elements 5' 115 and 511 are formed respectively as rigid strips of material of rectangular and segmental cross-section. The elements 51 and 511 are provided with recesses 8 which may be of any suitable form, and which may be 120 provided on one lateral surface of the elements, or, if desired, on the two opposite lateral surfaces. The said recesses 8 may, if desired, be-of saw-tooth form, and could be inclined in opposite directions at each 125 end of the element so that the element will be firmly restrained from axial -movement in either of its axial directions, -when embedded in the said cement.

A further form of linking element which 130 parts. The elements cannot therefore easily be displaced and being below the surface of the channels into which they are placed and the latter being filled with the said cement, the elements have not the unhygienic characteristics of the well-known U-shaped rivets.

may be employed in the repairing of broken or fractured china-ware by the method of this invention is illustrated in 'Figure 6.

This linking element 9 is formed of reetangular cross-section wire or other suitable material, wound into a helix. If desired such a helical linking element could be formed of material having a circular crosssection.

The linking element illustrated in Figure 6 may also be modified, a wire of rectangular, circular or any other desired cross-section being doubled upon itself and twisted about its longitudinal axis to form the modified element.

It will be appreciated that where it is desired to repair a broken article of chinaware by the method hereinbefore described, and the parts of the article are separate initially, such parts may be cemented together with a suitable cement before the said channels are formed, and if the parts are not cleanly broken, such cement may serve to bridge any undesirable gaps between the parts.

It will be understood that the cement referred to hereinbefore nmay be of any suitable character, but will preferably be such that it adheres readily to both the chinaware and the linking elements. It is also desirable that the cement should be obtainable in a plastic form to facilitate the filling of the aforesaid channels, and the cement should harden and 'or dry without any appreciable change in its volume so that the surface of the cement can be made flush with the corresponding surface of the joined parts whilst the cement is in the plastic state and will remain so when the cement has hardened and/or dried.

The invention thus includes the provision of linking elements for use in repairing broken china-ware, such elements comprising lengths of metal wire or equivalent material furnished with indentations or serrations, ribs, grooves or other suitable projections or anchorage means on its surface or surfaces to enable it to take a firm grip upon the joining cement used in repair ing the broken article.

Repairing china-ware in accordance with this invention has, ijter alia, the following advantages:-The junction is unobtrusive, being to a large extent invisible, the linking elements do not protrude from the repaired article as did the rivets hitherto employed.

The process can be carried out more quickly and more simply than the method of rivet.

ing hitherto employed and more satisfactory results can be obtained. The stability of the linking elements is greater as they are recessed into the work over their whole length so that they do not project from the - repaired article and thus enhance the strength of the join between the adjacent