US2761355A - Cemented molded frame constructions - Google Patents

Description

Sept. 4, 1956 P. L. MATER 2,761,355

CEMENTED MOLDED FRAME CONSTRUCTIONS Filed Feb. 1, 1954 HG] lo l6 FEG5 16.5 22 38 24 :4 26 34 a, i i-iii; 2o I 20 O 0 44 I] n1 0 :1 m1 2 'IIIIIIIIIIIIIII lN-VENTOR 51-5 L, 4447's? ATTORNEY United States Patent CEMENTED MOLDED FRAME CONSTRUCTIONS Peter L. Mater, Leominster, Mass., assignor to Standard Pyroxoloid Corporation, Leominster, Mass, a corporation of Massachusetts Application February 1, 1954, Serial No. 407,537

4 Claims. (Cl. 88-96) This invention relates to new and improved cemented frame constructions particularly adapted to the art of brush and mirror manufacture and being also applicable to other devices such as spectacles and the like. The invention may be applied where it is found to be convenient or desirable.

The principal object of the invention resides in the provision of a continuous frame which is adapted to hold a mirror, a brush back or a spectacle lens or the like, in combination with a separate holding element which is cemented to the continuous frame along a plurality of relatively narrow ring-like surfaces at angles to each other, there being at least two of such relatively angularlydisposed surfaces and preferably three thereof; in combination with an extra flange or ring or the like which is substantially concentric with the cemented surfaces referred to above, or parallel thereto in the case of rectangular devices, said extra flange being disposed to contact a member in said frame and hold the same in fixed position therein.

Further objects, of the invention include the provision of frames for holding devices as above described wherein all rolling over or distortion of the material of the frame is avoided, improving the appearance of the finished item and reducing the cost of construction therefor; and providing a construction which is ideal for cementing operations as opposed to any clamping, rolling over or squeezing operations as used in the prior art.

Further objects of the invention include the provision of a dam or the like on a pad to contain the adhesive material for securing the bristles in a brush-back, preventing such adhesive from coming in contact with the portion of the device that is made for the cementing operations and thereby preventing edge distortion of the brushback securement areas, such distortion being common in the prior art and preventing satisfactory cementing operations and resulting in poor appearance.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a plan view of a brush made according to the present invention;

Fig. 2 is an enlarged section on line 22 thereof;

Fig. 3 is a still further enlarged sectional view illustrating the construction;

Fig. 4 is a plan view of a brush-back blank prior to bristling;

Fig. 5 is an enlarged section on line 5-5 of Fig. 4;

Fig. 6 is a section through a form of the invention used for holding mirrors; and

Fig. 7 is a plan view of the construction, looking in the direction of arrow 7 in Fig. 6, parts being broken away.

In the prior art it has been common to either directly cement a plain bristled brush-back into a frame or to insert the bristled back into the frame and then to heat and roll over the edges of the frame to hold the same thereto. The present invention is concerned only with cementing and presents a new construction which improves the cemented article, enhances the appearance thereof, andreduces the cost of manufacture at the same time.

Referring to Fig. 1, there is illustrated a brush having a handle 10 which may be molded integrally with a continuous frame 12. This frame receives the brush-back 14 which is cemented thereto as will be described below, reference numeral 16 indicating the bristles.

Referring now to Figs. 4 and 5, the brush-back 14 comprises a web provided with a series of apertures 18, and the bristles are shaken into these apertures and positioned therein in a manner well known in the art. When enough bristles are so positioned, they are cemented in place to the brush-back 14 by means of a relatively large volume of cementitious material 20. It is to be noted that in Fig. 5 the brush-back 1-4 is inverted, and it receives the bristle securing material in this position.

The new and improved construction includes a continuous ring or flange 22 that rises from the flat bristleholding web portion of the brush-back 14 as clearly seen in Figs. 2, 3 and 5. This flange acts as a dam, the cementitious material 20, when fluid, being cast into the brushback 14 inverted as shown in Fig. 5. The heat from the fluid cementitious material is largely contained within the: area defined by the flange 22.

A circumferential flange or ring 24 extends outwardl} from the flange 22 adjacent the flat bristle-holding Web portion of the holder, and this flange or ring is protected from the heat of the hot cementitious material by reason: of the presence of the dam 22, so that the flange 24 can-- not become distorted by reason of such heat. The flange 24 is provided with a vertically-extending shorter ridge,

ring, or flange 26 concentric with flange 22 and prefer-- ably shorter. The flange or ring 26 is provided with a. flat terminal surface 28, a cylindrical surface 30 at right angles to surface 28, and a flat surface 32 at right angles: to surface 30 but parallel to surface 28. This cons-truction forms three separate surfaces in the form of two treads and a riser, all of which surfaces are well spaced from flange 22, and these three surfaces are to be cemented to the frame 12 as will be described.

The frame 12 is provided with a ring or flange 34 which has three surfaces corresponding to those at 28. 30 and 32 as best shown in Fig. 3 and these surfaces are indicated at 36, 38 and 40. These surfaces also form two treads and a riser complementary to those at 2'8, 30 and 32.

When the brush is to be assembled, an ornamental piece 42 is first inserted and laid upon an inwardly directed holding flange or shoulder 44 formed on the frame 12. It is of course possible that the portion 42 and the frame '12 may be integrah A backing member which may be of any suitable material such as corrugated board 46 is then laid upon the member 42. The brush-back as described above is now inverted from its Fig. 5 position and laid over upon the frame as shown in Fig. 3.

The surfaces at 28 and 30 are applied with cement just prior to the assembly of the brush-back, and the excess cement which may be squeezed out between the members and upon the application of pressure between the brush-back and frame 12 will form an adhesive means between the surfaces 32 and 36, so that all three of the surfaces will be seen to be cemented together and this forms a relatively wide surface 30 and a pair of smaller or narrower cemented surfaces at right angles thereto and at each side thereof for a perfect cementing relationship between the parts. Of course, cement may be directly applied to surface 28 also.

Preferably the brush-back is provided with a rounded edge portion at 48 and this will then appear to be a continuation of the material of the frame 12, so that an extremely neat as well as tight and permanent joint is thus provided, the parts being undistorted and fitting well.

Where a mirror or a spectacle lens is to be held in the frame, the construction is very similar. This construction is shown in Figs. 6 and 7 wherein the continuous frame at 50 is an open frame provided with a holding shoulder 52 to receive the glass of a mirror or backing therefor or a spectacle lens. Frame 50 is provided with the two-tread and riser construction, the same as above described, see the reference numeral 54, and the continuous holding frame 56 is provided with the mating complementary surfaces as clearly shown in Fig. 7, together with a spaced holding flange 58. Holding flange 58 is comparable to that of 22. It is spaced from the cementreceiving flange 60 and it abuts the member to be held. The flange 60 is made to provide the cementing construction as above described as to Figs. 2, 3 and 5, see the three separate surfaces as before, so that a perfect cemented construction is provided.

It is to be understood that in most cases the frame and handle are of molded plastic and the holding member is also molded for a snug fit as shown in the disclosure, so that the entire design is of an inexpensive manufacture but has a very greatly improved appearance over similar devices of the prior art, and this improved appearance is due to the construction forming the invention in the present case.

Having thus described our invention and the advantages thereof, we do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what We claim is:

1. A cemented frame construction comprising an open continuous frame element, an inwardly-directed shoulder thereon, a member in the frame and resting on the shoulder, a continuous holding element cooperating with the frame to hold the member in fixed position, and a pair of spaced concentric flanges on the holding element, one flange being cemented to the frame and the other flange abutting the member and holding the same to the shoulder on the frame element, a ridge on the frame element forming an internal shoulder spaced from the first-named shoulder, the cemented flange having an edge surface abutting the internal shoulder and cemented thereto, a circumferentially extending edge portion on the holding element adjacent the cemented flange, said edge portion overlying the ridge in contacting relation therewith, said edge portion being cemented to the top of the ridge.

2. A cemented frame construction comprising an open continuous frame element, an inwardly-directed shoulder thereon, a member in the frame and resting on the shoulder, a continuous holding element cooperating with the frame to hold the member in fixed position, and a pair of spaced concentric flanges on the holding element, one flange being cemented to the frame and the other flange abutting the member and holding the same to the shoulder on the frame element, a ridge on the frame element forming an internal shoulder spaced from the first-named shoulder, the cemented flange having an edge surface abutting the internal shoulder and cemented thereto, a circumferentially extending edge portion on the holding element adjacent the cemented flange, said edge portion overlying the ridge in contacting relation therewith, said edge portion being cemented to the top of the ridge, a rim-like surface on the frame element adjacent the internal shoulder, said cemented flange having an edge cemented thereto, the cemented flange being adhesively secured to the frame element on three separate side surfaces thereof substantially about the entire frame.

A frame construction comprising a continuous frame element, a supporting shoulder thereon, a member in the frame on the shoulder, and a continuous holding element cemented to the frame and holding the member to the shoulder, said frame having an open, unimpeded edge recess therein spaced from the shoulder and forming a step and riser, a pair of generally parallel spaced flanges on the holding element, one flange being outwardly located relative to the other and abutting said step at one surface and said riser at an adjacent side surface thereof, said flange surfaces and the step and riser being cemented, and the other flange contacting the member in the frame non-cementitiously and holding the member thereto.

4. A frame construction comprising a continuous frame element, a supporting shoulder thereon, a member in the frame on the shoulder, and a continuous holding element cemented to the frame and holding the member to the shoulder, said frame having an edge recess therein spaced from the shoulder and forming a pair of steps and a connecting riser, a pair of generally parallel spaced flanges on the holding element, one flange being outwardly located relative to the other and abutting one step at the surface thereof and said riser at an adjacent side surface thereof, said element abutting the other step, said abutting surfaces all being cemented, and the other flange contacting the member in the frame non-cementitiously and holding the member thereto, said member including a mirror and said holding member being open to expose the mirror while holding the same at its edges, there being a relatively large, concentric open channel between the flanges.

References Cited in the file of this patent UNITED STATES PATENTS 123,008 Estabrook I an. 23, 1872 125,867 Welling Apr. 16, 1872 269,270 Dreyfuss Dec. 19,1882 573,770 Estabrook Dec. 22, 1896 765,873 Berry July 26, 1904 788,904 Herbert May 2, 1905 1,508,059 Komorous Sept. 9, 1924 1,730,703 Wilcox Oct. 8, 1929 1,925,588 Gagnon Sept. 5,1933 2,186,643 Kaplan Ian. 9, 1940 2,508,908 Enchelmaier May 23, 1950 2,659,632 Enchelmaier Nov. 17, 1953 FOREIGN PATENTS 439,212 Great Britain Dec. 2, 1935

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